From 77ec02adbc8f9657e7749b307d3cc86ccbd163ea Mon Sep 17 00:00:00 2001 From: marha Date: Sat, 12 Mar 2011 14:57:48 +0000 Subject: libX11 pixman mesa git update 12 Mar 2011 --- mesalib/src/glsl/builtin_variables.h | 215 +- mesalib/src/glsl/ir_validate.cpp | 1124 ++-- mesalib/src/mesa/SConscript | 804 +-- mesalib/src/mesa/main/bufferobj.c | 3835 ++++++------ mesalib/src/mesa/main/context.c | 3768 ++++++------ mesalib/src/mesa/main/context.h | 602 +- mesalib/src/mesa/main/ff_fragment_shader.cpp | 1504 +++++ mesalib/src/mesa/main/get.c | 5054 ++++++++-------- mesalib/src/mesa/main/mtypes.h | 6722 +++++++++++---------- mesalib/src/mesa/main/queryobj.c | 1247 ++-- mesalib/src/mesa/main/shaderapi.c | 3887 ++++++------ mesalib/src/mesa/main/shaderobj.c | 828 +-- mesalib/src/mesa/main/state.c | 1477 ++--- mesalib/src/mesa/main/state.h | 39 + mesalib/src/mesa/main/texenvprogram.c | 1618 ----- mesalib/src/mesa/main/texenvprogram.h | 2 +- mesalib/src/mesa/main/uniforms.c | 3398 +++++------ mesalib/src/mesa/program/ir_to_mesa.cpp | 58 + mesalib/src/mesa/program/prog_cache.c | 53 +- mesalib/src/mesa/program/prog_cache.h | 9 + mesalib/src/mesa/program/program.c | 2154 +++---- mesalib/src/mesa/sources.mak | 748 +-- mesalib/src/mesa/state_tracker/st_cb_bitmap.c | 1788 +++--- mesalib/src/mesa/state_tracker/st_cb_drawpixels.c | 2976 ++++----- mesalib/src/mesa/state_tracker/st_cb_fbo.c | 1287 ++-- mesalib/src/mesa/state_tracker/st_cb_flush.c | 330 +- mesalib/src/mesa/state_tracker/st_cb_flush.h | 2 +- mesalib/src/mesa/state_tracker/st_cb_syncobj.c | 244 +- mesalib/src/mesa/state_tracker/st_cb_texture.c | 11 +- mesalib/src/mesa/state_tracker/st_extensions.c | 1050 ++-- mesalib/src/mesa/state_tracker/st_format.c | 2406 ++++---- mesalib/src/mesa/state_tracker/st_gen_mipmap.c | 902 +-- mesalib/src/mesa/state_tracker/st_manager.c | 1846 +++--- mesalib/src/mesa/state_tracker/st_texture.c | 2 +- mesalib/src/mesa/swrast/s_aatriangle.c | 3 +- mesalib/src/mesa/swrast/s_triangle.c | 5 +- mesalib/src/mesa/tnl/t_context.c | 3 +- 37 files changed, 26009 insertions(+), 25992 deletions(-) create mode 100644 mesalib/src/mesa/main/ff_fragment_shader.cpp delete mode 100644 mesalib/src/mesa/main/texenvprogram.c (limited to 'mesalib/src') diff --git a/mesalib/src/glsl/builtin_variables.h b/mesalib/src/glsl/builtin_variables.h index a34c67e34..f3531a370 100644 --- a/mesalib/src/glsl/builtin_variables.h +++ b/mesalib/src/glsl/builtin_variables.h @@ -1,105 +1,110 @@ -/* - * Copyright © 2010 Intel Corporation - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - */ - -#include "main/core.h" /* for slot numbers */ - -struct builtin_variable { - enum ir_variable_mode mode; - int slot; - const char *type; - const char *name; -}; - -static const builtin_variable builtin_core_vs_variables[] = { - { ir_var_out, VERT_RESULT_HPOS, "vec4", "gl_Position" }, - { ir_var_out, VERT_RESULT_PSIZ, "float", "gl_PointSize" }, -}; - -static const builtin_variable builtin_core_fs_variables[] = { - { ir_var_in, FRAG_ATTRIB_WPOS, "vec4", "gl_FragCoord" }, - { ir_var_in, FRAG_ATTRIB_FACE, "bool", "gl_FrontFacing" }, - { ir_var_out, FRAG_RESULT_COLOR, "vec4", "gl_FragColor" }, -}; - -static const builtin_variable builtin_100ES_fs_variables[] = { - { ir_var_in, FRAG_ATTRIB_PNTC, "vec2", "gl_PointCoord" }, -}; - -static const builtin_variable builtin_110_fs_variables[] = { - { ir_var_out, FRAG_RESULT_DEPTH, "float", "gl_FragDepth" }, -}; - -static const builtin_variable builtin_110_deprecated_fs_variables[] = { - { ir_var_in, FRAG_ATTRIB_COL0, "vec4", "gl_Color" }, - { ir_var_in, FRAG_ATTRIB_COL1, "vec4", "gl_SecondaryColor" }, - { ir_var_in, FRAG_ATTRIB_FOGC, "float", "gl_FogFragCoord" }, -}; - -static const builtin_variable builtin_110_deprecated_vs_variables[] = { - { ir_var_in, VERT_ATTRIB_POS, "vec4", "gl_Vertex" }, - { ir_var_in, VERT_ATTRIB_NORMAL, "vec3", "gl_Normal" }, - { ir_var_in, VERT_ATTRIB_COLOR0, "vec4", "gl_Color" }, - { ir_var_in, VERT_ATTRIB_COLOR1, "vec4", "gl_SecondaryColor" }, - { ir_var_in, VERT_ATTRIB_TEX0, "vec4", "gl_MultiTexCoord0" }, - { ir_var_in, VERT_ATTRIB_TEX1, "vec4", "gl_MultiTexCoord1" }, - { ir_var_in, VERT_ATTRIB_TEX2, "vec4", "gl_MultiTexCoord2" }, - { ir_var_in, VERT_ATTRIB_TEX3, "vec4", "gl_MultiTexCoord3" }, - { ir_var_in, VERT_ATTRIB_TEX4, "vec4", "gl_MultiTexCoord4" }, - { ir_var_in, VERT_ATTRIB_TEX5, "vec4", "gl_MultiTexCoord5" }, - { ir_var_in, VERT_ATTRIB_TEX6, "vec4", "gl_MultiTexCoord6" }, - { ir_var_in, VERT_ATTRIB_TEX7, "vec4", "gl_MultiTexCoord7" }, - { ir_var_in, VERT_ATTRIB_FOG, "float", "gl_FogCoord" }, - { ir_var_out, VERT_RESULT_HPOS, "vec4", "gl_ClipVertex" }, - { ir_var_out, VERT_RESULT_COL0, "vec4", "gl_FrontColor" }, - { ir_var_out, VERT_RESULT_BFC0, "vec4", "gl_BackColor" }, - { ir_var_out, VERT_RESULT_COL1, "vec4", "gl_FrontSecondaryColor" }, - { ir_var_out, VERT_RESULT_BFC1, "vec4", "gl_BackSecondaryColor" }, - { ir_var_out, VERT_RESULT_FOGC, "float", "gl_FogFragCoord" }, -}; - -static const builtin_variable builtin_120_fs_variables[] = { - { ir_var_in, FRAG_ATTRIB_PNTC, "vec2", "gl_PointCoord" }, -}; - -static const builtin_variable builtin_130_vs_variables[] = { - { ir_var_in, -1, "int", "gl_VertexID" }, -}; - -static const builtin_variable builtin_110_deprecated_uniforms[] = { - { ir_var_uniform, -1, "mat4", "gl_ModelViewMatrix" }, - { ir_var_uniform, -1, "mat4", "gl_ProjectionMatrix" }, - { ir_var_uniform, -1, "mat4", "gl_ModelViewProjectionMatrix" }, - { ir_var_uniform, -1, "mat3", "gl_NormalMatrix" }, - { ir_var_uniform, -1, "mat4", "gl_ModelViewMatrixInverse" }, - { ir_var_uniform, -1, "mat4", "gl_ProjectionMatrixInverse" }, - { ir_var_uniform, -1, "mat4", "gl_ModelViewProjectionMatrixInverse" }, - { ir_var_uniform, -1, "mat4", "gl_ModelViewMatrixTranspose" }, - { ir_var_uniform, -1, "mat4", "gl_ProjectionMatrixTranspose" }, - { ir_var_uniform, -1, "mat4", "gl_ModelViewProjectionMatrixTranspose" }, - { ir_var_uniform, -1, "mat4", "gl_ModelViewMatrixInverseTranspose" }, - { ir_var_uniform, -1, "mat4", "gl_ProjectionMatrixInverseTranspose" }, - { ir_var_uniform, -1, "mat4", "gl_ModelViewProjectionMatrixInverseTranspose" }, - { ir_var_uniform, -1, "float", "gl_NormalScale" }, - { ir_var_uniform, -1, "gl_LightModelParameters", "gl_LightModel"}, -}; - +/* + * Copyright © 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include "main/core.h" /* for slot numbers */ + +struct builtin_variable { + enum ir_variable_mode mode; + int slot; + const char *type; + const char *name; +}; + +static const builtin_variable builtin_core_vs_variables[] = { + { ir_var_out, VERT_RESULT_HPOS, "vec4", "gl_Position" }, + { ir_var_out, VERT_RESULT_PSIZ, "float", "gl_PointSize" }, +}; + +static const builtin_variable builtin_core_fs_variables[] = { + { ir_var_in, FRAG_ATTRIB_WPOS, "vec4", "gl_FragCoord" }, + { ir_var_in, FRAG_ATTRIB_FACE, "bool", "gl_FrontFacing" }, + { ir_var_out, FRAG_RESULT_COLOR, "vec4", "gl_FragColor" }, +}; + +static const builtin_variable builtin_100ES_fs_variables[] = { + { ir_var_in, FRAG_ATTRIB_PNTC, "vec2", "gl_PointCoord" }, +}; + +static const builtin_variable builtin_110_fs_variables[] = { + { ir_var_out, FRAG_RESULT_DEPTH, "float", "gl_FragDepth" }, +}; + +static const builtin_variable builtin_110_deprecated_fs_variables[] = { + { ir_var_in, FRAG_ATTRIB_COL0, "vec4", "gl_Color" }, + { ir_var_in, FRAG_ATTRIB_COL1, "vec4", "gl_SecondaryColor" }, + { ir_var_in, FRAG_ATTRIB_FOGC, "float", "gl_FogFragCoord" }, +}; + +static const builtin_variable builtin_110_deprecated_vs_variables[] = { + { ir_var_in, VERT_ATTRIB_POS, "vec4", "gl_Vertex" }, + { ir_var_in, VERT_ATTRIB_NORMAL, "vec3", "gl_Normal" }, + { ir_var_in, VERT_ATTRIB_COLOR0, "vec4", "gl_Color" }, + { ir_var_in, VERT_ATTRIB_COLOR1, "vec4", "gl_SecondaryColor" }, + { ir_var_in, VERT_ATTRIB_TEX0, "vec4", "gl_MultiTexCoord0" }, + { ir_var_in, VERT_ATTRIB_TEX1, "vec4", "gl_MultiTexCoord1" }, + { ir_var_in, VERT_ATTRIB_TEX2, "vec4", "gl_MultiTexCoord2" }, + { ir_var_in, VERT_ATTRIB_TEX3, "vec4", "gl_MultiTexCoord3" }, + { ir_var_in, VERT_ATTRIB_TEX4, "vec4", "gl_MultiTexCoord4" }, + { ir_var_in, VERT_ATTRIB_TEX5, "vec4", "gl_MultiTexCoord5" }, + { ir_var_in, VERT_ATTRIB_TEX6, "vec4", "gl_MultiTexCoord6" }, + { ir_var_in, VERT_ATTRIB_TEX7, "vec4", "gl_MultiTexCoord7" }, + { ir_var_in, VERT_ATTRIB_FOG, "float", "gl_FogCoord" }, + { ir_var_out, VERT_RESULT_HPOS, "vec4", "gl_ClipVertex" }, + { ir_var_out, VERT_RESULT_COL0, "vec4", "gl_FrontColor" }, + { ir_var_out, VERT_RESULT_BFC0, "vec4", "gl_BackColor" }, + { ir_var_out, VERT_RESULT_COL1, "vec4", "gl_FrontSecondaryColor" }, + { ir_var_out, VERT_RESULT_BFC1, "vec4", "gl_BackSecondaryColor" }, + { ir_var_out, VERT_RESULT_FOGC, "float", "gl_FogFragCoord" }, +}; + +static const builtin_variable builtin_120_fs_variables[] = { + { ir_var_in, FRAG_ATTRIB_PNTC, "vec2", "gl_PointCoord" }, +}; + +static const builtin_variable builtin_130_vs_variables[] = { + { ir_var_in, -1, "int", "gl_VertexID" }, +}; + +static const builtin_variable builtin_110_deprecated_uniforms[] = { + { ir_var_uniform, -1, "mat4", "gl_ModelViewMatrix" }, + { ir_var_uniform, -1, "mat4", "gl_ProjectionMatrix" }, + { ir_var_uniform, -1, "mat4", "gl_ModelViewProjectionMatrix" }, + { ir_var_uniform, -1, "mat3", "gl_NormalMatrix" }, + { ir_var_uniform, -1, "mat4", "gl_ModelViewMatrixInverse" }, + { ir_var_uniform, -1, "mat4", "gl_ProjectionMatrixInverse" }, + { ir_var_uniform, -1, "mat4", "gl_ModelViewProjectionMatrixInverse" }, + { ir_var_uniform, -1, "mat4", "gl_ModelViewMatrixTranspose" }, + { ir_var_uniform, -1, "mat4", "gl_ProjectionMatrixTranspose" }, + { ir_var_uniform, -1, "mat4", "gl_ModelViewProjectionMatrixTranspose" }, + { ir_var_uniform, -1, "mat4", "gl_ModelViewMatrixInverseTranspose" }, + { ir_var_uniform, -1, "mat4", "gl_ProjectionMatrixInverseTranspose" }, + { ir_var_uniform, -1, "mat4", "gl_ModelViewProjectionMatrixInverseTranspose" }, + { ir_var_uniform, -1, "float", "gl_NormalScale" }, + { ir_var_uniform, -1, "gl_LightModelParameters", "gl_LightModel"}, + + /* Mesa-internal ATI_envmap_bumpmap state. */ + { ir_var_uniform, -1, "vec2", "gl_MESABumpRotMatrix0"}, + { ir_var_uniform, -1, "vec2", "gl_MESABumpRotMatrix1"}, + { ir_var_uniform, -1, "vec4", "gl_MESAFogParamsOptimized"}, +}; + diff --git a/mesalib/src/glsl/ir_validate.cpp b/mesalib/src/glsl/ir_validate.cpp index b2ae08f37..fe6ef8145 100644 --- a/mesalib/src/glsl/ir_validate.cpp +++ b/mesalib/src/glsl/ir_validate.cpp @@ -1,562 +1,562 @@ -/* - * Copyright © 2010 Intel Corporation - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - */ - -/** - * \file ir_validate.cpp - * - * Attempts to verify that various invariants of the IR tree are true. - * - * In particular, at the moment it makes sure that no single - * ir_instruction node except for ir_variable appears multiple times - * in the ir tree. ir_variable does appear multiple times: Once as a - * declaration in an exec_list, and multiple times as the endpoint of - * a dereference chain. - */ - -#include -#include "ir.h" -#include "ir_hierarchical_visitor.h" -#include "program/hash_table.h" -#include "glsl_types.h" - -class ir_validate : public ir_hierarchical_visitor { -public: - ir_validate() - { - this->ht = hash_table_ctor(0, hash_table_pointer_hash, - hash_table_pointer_compare); - - this->current_function = NULL; - - this->callback = ir_validate::validate_ir; - this->data = ht; - } - - ~ir_validate() - { - hash_table_dtor(this->ht); - } - - virtual ir_visitor_status visit(ir_variable *v); - virtual ir_visitor_status visit(ir_dereference_variable *ir); - virtual ir_visitor_status visit(ir_if *ir); - - virtual ir_visitor_status visit_leave(ir_loop *ir); - virtual ir_visitor_status visit_enter(ir_function *ir); - virtual ir_visitor_status visit_leave(ir_function *ir); - virtual ir_visitor_status visit_enter(ir_function_signature *ir); - - virtual ir_visitor_status visit_leave(ir_expression *ir); - virtual ir_visitor_status visit_leave(ir_swizzle *ir); - - virtual ir_visitor_status visit_enter(ir_assignment *ir); - virtual ir_visitor_status visit_enter(ir_call *ir); - - static void validate_ir(ir_instruction *ir, void *data); - - ir_function *current_function; - - struct hash_table *ht; -}; - - -ir_visitor_status -ir_validate::visit(ir_dereference_variable *ir) -{ - if ((ir->var == NULL) || (ir->var->as_variable() == NULL)) { - printf("ir_dereference_variable @ %p does not specify a variable %p\n", - (void *) ir, (void *) ir->var); - abort(); - } - - if (hash_table_find(ht, ir->var) == NULL) { - printf("ir_dereference_variable @ %p specifies undeclared variable " - "`%s' @ %p\n", - (void *) ir, ir->var->name, (void *) ir->var); - abort(); - } - - this->validate_ir(ir, this->data); - - return visit_continue; -} - -ir_visitor_status -ir_validate::visit(ir_if *ir) -{ - if (ir->condition->type != glsl_type::bool_type) { - printf("ir_if condition %s type instead of bool.\n", - ir->condition->type->name); - ir->print(); - printf("\n"); - abort(); - } - - return visit_continue; -} - - -ir_visitor_status -ir_validate::visit_leave(ir_loop *ir) -{ - if (ir->counter != NULL) { - if ((ir->from == NULL) || (ir->from == NULL) || (ir->increment == NULL)) { - printf("ir_loop has invalid loop controls:\n" - " counter: %p\n" - " from: %p\n" - " to: %p\n" - " increment: %p\n", - (void *) ir->counter, (void *) ir->from, (void *) ir->to, - (void *) ir->increment); - abort(); - } - - if ((ir->cmp < ir_binop_less) || (ir->cmp > ir_binop_nequal)) { - printf("ir_loop has invalid comparitor %d\n", ir->cmp); - abort(); - } - } else { - if ((ir->from != NULL) || (ir->from != NULL) || (ir->increment != NULL)) { - printf("ir_loop has invalid loop controls:\n" - " counter: %p\n" - " from: %p\n" - " to: %p\n" - " increment: %p\n", - (void *) ir->counter, (void *) ir->from, (void *) ir->to, - (void *) ir->increment); - abort(); - } - } - - return visit_continue; -} - - -ir_visitor_status -ir_validate::visit_enter(ir_function *ir) -{ - /* Function definitions cannot be nested. - */ - if (this->current_function != NULL) { - printf("Function definition nested inside another function " - "definition:\n"); - printf("%s %p inside %s %p\n", - ir->name, (void *) ir, - this->current_function->name, (void *) this->current_function); - abort(); - } - - /* Store the current function hierarchy being traversed. This is used - * by the function signature visitor to ensure that the signatures are - * linked with the correct functions. - */ - this->current_function = ir; - - this->validate_ir(ir, this->data); - - /* Verify that all of the things stored in the list of signatures are, - * in fact, function signatures. - */ - foreach_list(node, &ir->signatures) { - ir_instruction *sig = (ir_instruction *) node; - - if (sig->ir_type != ir_type_function_signature) { - printf("Non-signature in signature list of function `%s'\n", - ir->name); - abort(); - } - } - - return visit_continue; -} - -ir_visitor_status -ir_validate::visit_leave(ir_function *ir) -{ - assert(ralloc_parent(ir->name) == ir); - - this->current_function = NULL; - return visit_continue; -} - -ir_visitor_status -ir_validate::visit_enter(ir_function_signature *ir) -{ - if (this->current_function != ir->function()) { - printf("Function signature nested inside wrong function " - "definition:\n"); - printf("%p inside %s %p instead of %s %p\n", - (void *) ir, - this->current_function->name, (void *) this->current_function, - ir->function_name(), (void *) ir->function()); - abort(); - } - - if (ir->return_type == NULL) { - printf("Function signature %p for function %s has NULL return type.\n", - ir, ir->function_name()); - abort(); - } - - this->validate_ir(ir, this->data); - - return visit_continue; -} - -ir_visitor_status -ir_validate::visit_leave(ir_expression *ir) -{ - switch (ir->operation) { - case ir_unop_bit_not: - assert(ir->operands[0]->type == ir->type); - break; - case ir_unop_logic_not: - assert(ir->type->base_type == GLSL_TYPE_BOOL); - assert(ir->operands[0]->type->base_type == GLSL_TYPE_BOOL); - break; - - case ir_unop_neg: - case ir_unop_abs: - case ir_unop_sign: - case ir_unop_rcp: - case ir_unop_rsq: - case ir_unop_sqrt: - assert(ir->type == ir->operands[0]->type); - break; - - case ir_unop_exp: - case ir_unop_log: - case ir_unop_exp2: - case ir_unop_log2: - assert(ir->operands[0]->type->base_type == GLSL_TYPE_FLOAT); - assert(ir->type == ir->operands[0]->type); - break; - - case ir_unop_f2i: - assert(ir->operands[0]->type->base_type == GLSL_TYPE_FLOAT); - assert(ir->type->base_type == GLSL_TYPE_INT); - break; - case ir_unop_i2f: - assert(ir->operands[0]->type->base_type == GLSL_TYPE_INT); - assert(ir->type->base_type == GLSL_TYPE_FLOAT); - break; - case ir_unop_f2b: - assert(ir->operands[0]->type->base_type == GLSL_TYPE_FLOAT); - assert(ir->type->base_type == GLSL_TYPE_BOOL); - break; - case ir_unop_b2f: - assert(ir->operands[0]->type->base_type == GLSL_TYPE_BOOL); - assert(ir->type->base_type == GLSL_TYPE_FLOAT); - break; - case ir_unop_i2b: - assert(ir->operands[0]->type->base_type == GLSL_TYPE_INT); - assert(ir->type->base_type == GLSL_TYPE_BOOL); - break; - case ir_unop_b2i: - assert(ir->operands[0]->type->base_type == GLSL_TYPE_BOOL); - assert(ir->type->base_type == GLSL_TYPE_INT); - break; - case ir_unop_u2f: - assert(ir->operands[0]->type->base_type == GLSL_TYPE_UINT); - assert(ir->type->base_type == GLSL_TYPE_FLOAT); - break; - - case ir_unop_any: - assert(ir->operands[0]->type->base_type == GLSL_TYPE_BOOL); - assert(ir->type == glsl_type::bool_type); - break; - - case ir_unop_trunc: - case ir_unop_round_even: - case ir_unop_ceil: - case ir_unop_floor: - case ir_unop_fract: - case ir_unop_sin: - case ir_unop_cos: - case ir_unop_sin_reduced: - case ir_unop_cos_reduced: - case ir_unop_dFdx: - case ir_unop_dFdy: - assert(ir->operands[0]->type->base_type == GLSL_TYPE_FLOAT); - assert(ir->operands[0]->type == ir->type); - break; - - case ir_unop_noise: - /* XXX what can we assert here? */ - break; - - case ir_binop_add: - case ir_binop_sub: - case ir_binop_mul: - case ir_binop_div: - case ir_binop_mod: - case ir_binop_min: - case ir_binop_max: - case ir_binop_pow: - if (ir->operands[0]->type->is_scalar()) - assert(ir->operands[1]->type == ir->type); - else if (ir->operands[1]->type->is_scalar()) - assert(ir->operands[0]->type == ir->type); - else if (ir->operands[0]->type->is_vector() && - ir->operands[1]->type->is_vector()) { - assert(ir->operands[0]->type == ir->operands[1]->type); - assert(ir->operands[0]->type == ir->type); - } - break; - - case ir_binop_less: - case ir_binop_greater: - case ir_binop_lequal: - case ir_binop_gequal: - case ir_binop_equal: - case ir_binop_nequal: - /* The semantics of the IR operators differ from the GLSL <, >, <=, >=, - * ==, and != operators. The IR operators perform a component-wise - * comparison on scalar or vector types and return a boolean scalar or - * vector type of the same size. - */ - assert(ir->type->base_type == GLSL_TYPE_BOOL); - assert(ir->operands[0]->type == ir->operands[1]->type); - assert(ir->operands[0]->type->is_vector() - || ir->operands[0]->type->is_scalar()); - assert(ir->operands[0]->type->vector_elements - == ir->type->vector_elements); - break; - - case ir_binop_all_equal: - case ir_binop_any_nequal: - /* GLSL == and != operate on scalars, vectors, matrices and arrays, and - * return a scalar boolean. The IR matches that. - */ - assert(ir->type == glsl_type::bool_type); - assert(ir->operands[0]->type == ir->operands[1]->type); - break; - - case ir_binop_lshift: - case ir_binop_rshift: - assert(ir->operands[0]->type->is_integer() && - ir->operands[1]->type->is_integer()); - if (ir->operands[0]->type->is_scalar()) { - assert(ir->operands[1]->type->is_scalar()); - } - if (ir->operands[0]->type->is_vector() && - ir->operands[1]->type->is_vector()) { - assert(ir->operands[0]->type->components() == - ir->operands[1]->type->components()); - } - assert(ir->type == ir->operands[0]->type); - break; - - case ir_binop_bit_and: - case ir_binop_bit_xor: - case ir_binop_bit_or: - assert(ir->operands[0]->type->base_type == - ir->operands[1]->type->base_type); - assert(ir->type->is_integer()); - if (ir->operands[0]->type->is_vector() && - ir->operands[1]->type->is_vector()) { - assert(ir->operands[0]->type->vector_elements == - ir->operands[1]->type->vector_elements); - } - break; - - case ir_binop_logic_and: - case ir_binop_logic_xor: - case ir_binop_logic_or: - assert(ir->type == glsl_type::bool_type); - assert(ir->operands[0]->type == glsl_type::bool_type); - assert(ir->operands[1]->type == glsl_type::bool_type); - break; - - case ir_binop_dot: - assert(ir->type == glsl_type::float_type); - assert(ir->operands[0]->type->base_type == GLSL_TYPE_FLOAT); - assert(ir->operands[0]->type->is_vector()); - assert(ir->operands[0]->type == ir->operands[1]->type); - break; - - case ir_quadop_vector: - /* The vector operator collects some number of scalars and generates a - * vector from them. - * - * - All of the operands must be scalar. - * - Number of operands must matche the size of the resulting vector. - * - Base type of the operands must match the base type of the result. - */ - assert(ir->type->is_vector()); - switch (ir->type->vector_elements) { - case 2: - assert(ir->operands[0]->type->is_scalar()); - assert(ir->operands[0]->type->base_type == ir->type->base_type); - assert(ir->operands[1]->type->is_scalar()); - assert(ir->operands[1]->type->base_type == ir->type->base_type); - assert(ir->operands[2] == NULL); - assert(ir->operands[3] == NULL); - break; - case 3: - assert(ir->operands[0]->type->is_scalar()); - assert(ir->operands[0]->type->base_type == ir->type->base_type); - assert(ir->operands[1]->type->is_scalar()); - assert(ir->operands[1]->type->base_type == ir->type->base_type); - assert(ir->operands[2]->type->is_scalar()); - assert(ir->operands[2]->type->base_type == ir->type->base_type); - assert(ir->operands[3] == NULL); - break; - case 4: - assert(ir->operands[0]->type->is_scalar()); - assert(ir->operands[0]->type->base_type == ir->type->base_type); - assert(ir->operands[1]->type->is_scalar()); - assert(ir->operands[1]->type->base_type == ir->type->base_type); - assert(ir->operands[2]->type->is_scalar()); - assert(ir->operands[2]->type->base_type == ir->type->base_type); - assert(ir->operands[3]->type->is_scalar()); - assert(ir->operands[3]->type->base_type == ir->type->base_type); - break; - default: - /* The is_vector assertion above should prevent execution from ever - * getting here. - */ - assert(!"Should not get here."); - break; - } - } - - return visit_continue; -} - -ir_visitor_status -ir_validate::visit_leave(ir_swizzle *ir) -{ - int chans[4] = {ir->mask.x, ir->mask.y, ir->mask.z, ir->mask.w}; - - for (unsigned int i = 0; i < ir->type->vector_elements; i++) { - if (chans[i] >= ir->val->type->vector_elements) { - printf("ir_swizzle @ %p specifies a channel not present " - "in the value.\n", (void *) ir); - ir->print(); - abort(); - } - } - - return visit_continue; -} - -ir_visitor_status -ir_validate::visit(ir_variable *ir) -{ - /* An ir_variable is the one thing that can (and will) appear multiple times - * in an IR tree. It is added to the hashtable so that it can be used - * in the ir_dereference_variable handler to ensure that a variable is - * declared before it is dereferenced. - */ - if (ir->name) - assert(ralloc_parent(ir->name) == ir); - - hash_table_insert(ht, ir, ir); - return visit_continue; -} - -ir_visitor_status -ir_validate::visit_enter(ir_assignment *ir) -{ - const ir_dereference *const lhs = ir->lhs; - if (lhs->type->is_scalar() || lhs->type->is_vector()) { - if (ir->write_mask == 0) { - printf("Assignment LHS is %s, but write mask is 0:\n", - lhs->type->is_scalar() ? "scalar" : "vector"); - ir->print(); - abort(); - } - - int lhs_components = 0; - for (int i = 0; i < 4; i++) { - if (ir->write_mask & (1 << i)) - lhs_components++; - } - - if (lhs_components != ir->rhs->type->vector_elements) { - printf("Assignment count of LHS write mask channels enabled not\n" - "matching RHS vector size (%d LHS, %d RHS).\n", - lhs_components, ir->rhs->type->vector_elements); - ir->print(); - abort(); - } - } - - this->validate_ir(ir, this->data); - - return visit_continue; -} - -ir_visitor_status -ir_validate::visit_enter(ir_call *ir) -{ - ir_function_signature *const callee = ir->get_callee(); - - if (callee->ir_type != ir_type_function_signature) { - printf("IR called by ir_call is not ir_function_signature!\n"); - abort(); - } - - return visit_continue; -} - -void -ir_validate::validate_ir(ir_instruction *ir, void *data) -{ - struct hash_table *ht = (struct hash_table *) data; - - if (hash_table_find(ht, ir)) { - printf("Instruction node present twice in ir tree:\n"); - ir->print(); - printf("\n"); - abort(); - } - hash_table_insert(ht, ir, ir); -} - -void -check_node_type(ir_instruction *ir, void *data) -{ - (void) data; - - if (ir->ir_type <= ir_type_unset || ir->ir_type >= ir_type_max) { - printf("Instruction node with unset type\n"); - ir->print(); printf("\n"); - } - assert(ir->type != glsl_type::error_type); -} - -void -validate_ir_tree(exec_list *instructions) -{ - ir_validate v; - - v.run(instructions); - - foreach_iter(exec_list_iterator, iter, *instructions) { - ir_instruction *ir = (ir_instruction *)iter.get(); - - visit_tree(ir, check_node_type, NULL); - } -} +/* + * Copyright © 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +/** + * \file ir_validate.cpp + * + * Attempts to verify that various invariants of the IR tree are true. + * + * In particular, at the moment it makes sure that no single + * ir_instruction node except for ir_variable appears multiple times + * in the ir tree. ir_variable does appear multiple times: Once as a + * declaration in an exec_list, and multiple times as the endpoint of + * a dereference chain. + */ + +#include +#include "ir.h" +#include "ir_hierarchical_visitor.h" +#include "program/hash_table.h" +#include "glsl_types.h" + +class ir_validate : public ir_hierarchical_visitor { +public: + ir_validate() + { + this->ht = hash_table_ctor(0, hash_table_pointer_hash, + hash_table_pointer_compare); + + this->current_function = NULL; + + this->callback = ir_validate::validate_ir; + this->data = ht; + } + + ~ir_validate() + { + hash_table_dtor(this->ht); + } + + virtual ir_visitor_status visit(ir_variable *v); + virtual ir_visitor_status visit(ir_dereference_variable *ir); + virtual ir_visitor_status visit(ir_if *ir); + + virtual ir_visitor_status visit_leave(ir_loop *ir); + virtual ir_visitor_status visit_enter(ir_function *ir); + virtual ir_visitor_status visit_leave(ir_function *ir); + virtual ir_visitor_status visit_enter(ir_function_signature *ir); + + virtual ir_visitor_status visit_leave(ir_expression *ir); + virtual ir_visitor_status visit_leave(ir_swizzle *ir); + + virtual ir_visitor_status visit_enter(ir_assignment *ir); + virtual ir_visitor_status visit_enter(ir_call *ir); + + static void validate_ir(ir_instruction *ir, void *data); + + ir_function *current_function; + + struct hash_table *ht; +}; + + +ir_visitor_status +ir_validate::visit(ir_dereference_variable *ir) +{ + if ((ir->var == NULL) || (ir->var->as_variable() == NULL)) { + printf("ir_dereference_variable @ %p does not specify a variable %p\n", + (void *) ir, (void *) ir->var); + abort(); + } + + if (hash_table_find(ht, ir->var) == NULL) { + printf("ir_dereference_variable @ %p specifies undeclared variable " + "`%s' @ %p\n", + (void *) ir, ir->var->name, (void *) ir->var); + abort(); + } + + this->validate_ir(ir, this->data); + + return visit_continue; +} + +ir_visitor_status +ir_validate::visit(ir_if *ir) +{ + if (ir->condition->type != glsl_type::bool_type) { + printf("ir_if condition %s type instead of bool.\n", + ir->condition->type->name); + ir->print(); + printf("\n"); + abort(); + } + + return visit_continue; +} + + +ir_visitor_status +ir_validate::visit_leave(ir_loop *ir) +{ + if (ir->counter != NULL) { + if ((ir->from == NULL) || (ir->from == NULL) || (ir->increment == NULL)) { + printf("ir_loop has invalid loop controls:\n" + " counter: %p\n" + " from: %p\n" + " to: %p\n" + " increment: %p\n", + (void *) ir->counter, (void *) ir->from, (void *) ir->to, + (void *) ir->increment); + abort(); + } + + if ((ir->cmp < ir_binop_less) || (ir->cmp > ir_binop_nequal)) { + printf("ir_loop has invalid comparitor %d\n", ir->cmp); + abort(); + } + } else { + if ((ir->from != NULL) || (ir->from != NULL) || (ir->increment != NULL)) { + printf("ir_loop has invalid loop controls:\n" + " counter: %p\n" + " from: %p\n" + " to: %p\n" + " increment: %p\n", + (void *) ir->counter, (void *) ir->from, (void *) ir->to, + (void *) ir->increment); + abort(); + } + } + + return visit_continue; +} + + +ir_visitor_status +ir_validate::visit_enter(ir_function *ir) +{ + /* Function definitions cannot be nested. + */ + if (this->current_function != NULL) { + printf("Function definition nested inside another function " + "definition:\n"); + printf("%s %p inside %s %p\n", + ir->name, (void *) ir, + this->current_function->name, (void *) this->current_function); + abort(); + } + + /* Store the current function hierarchy being traversed. This is used + * by the function signature visitor to ensure that the signatures are + * linked with the correct functions. + */ + this->current_function = ir; + + this->validate_ir(ir, this->data); + + /* Verify that all of the things stored in the list of signatures are, + * in fact, function signatures. + */ + foreach_list(node, &ir->signatures) { + ir_instruction *sig = (ir_instruction *) node; + + if (sig->ir_type != ir_type_function_signature) { + printf("Non-signature in signature list of function `%s'\n", + ir->name); + abort(); + } + } + + return visit_continue; +} + +ir_visitor_status +ir_validate::visit_leave(ir_function *ir) +{ + assert(ralloc_parent(ir->name) == ir); + + this->current_function = NULL; + return visit_continue; +} + +ir_visitor_status +ir_validate::visit_enter(ir_function_signature *ir) +{ + if (this->current_function != ir->function()) { + printf("Function signature nested inside wrong function " + "definition:\n"); + printf("%p inside %s %p instead of %s %p\n", + (void *) ir, + this->current_function->name, (void *) this->current_function, + ir->function_name(), (void *) ir->function()); + abort(); + } + + if (ir->return_type == NULL) { + printf("Function signature %p for function %s has NULL return type.\n", + (void *) ir, ir->function_name()); + abort(); + } + + this->validate_ir(ir, this->data); + + return visit_continue; +} + +ir_visitor_status +ir_validate::visit_leave(ir_expression *ir) +{ + switch (ir->operation) { + case ir_unop_bit_not: + assert(ir->operands[0]->type == ir->type); + break; + case ir_unop_logic_not: + assert(ir->type->base_type == GLSL_TYPE_BOOL); + assert(ir->operands[0]->type->base_type == GLSL_TYPE_BOOL); + break; + + case ir_unop_neg: + case ir_unop_abs: + case ir_unop_sign: + case ir_unop_rcp: + case ir_unop_rsq: + case ir_unop_sqrt: + assert(ir->type == ir->operands[0]->type); + break; + + case ir_unop_exp: + case ir_unop_log: + case ir_unop_exp2: + case ir_unop_log2: + assert(ir->operands[0]->type->base_type == GLSL_TYPE_FLOAT); + assert(ir->type == ir->operands[0]->type); + break; + + case ir_unop_f2i: + assert(ir->operands[0]->type->base_type == GLSL_TYPE_FLOAT); + assert(ir->type->base_type == GLSL_TYPE_INT); + break; + case ir_unop_i2f: + assert(ir->operands[0]->type->base_type == GLSL_TYPE_INT); + assert(ir->type->base_type == GLSL_TYPE_FLOAT); + break; + case ir_unop_f2b: + assert(ir->operands[0]->type->base_type == GLSL_TYPE_FLOAT); + assert(ir->type->base_type == GLSL_TYPE_BOOL); + break; + case ir_unop_b2f: + assert(ir->operands[0]->type->base_type == GLSL_TYPE_BOOL); + assert(ir->type->base_type == GLSL_TYPE_FLOAT); + break; + case ir_unop_i2b: + assert(ir->operands[0]->type->base_type == GLSL_TYPE_INT); + assert(ir->type->base_type == GLSL_TYPE_BOOL); + break; + case ir_unop_b2i: + assert(ir->operands[0]->type->base_type == GLSL_TYPE_BOOL); + assert(ir->type->base_type == GLSL_TYPE_INT); + break; + case ir_unop_u2f: + assert(ir->operands[0]->type->base_type == GLSL_TYPE_UINT); + assert(ir->type->base_type == GLSL_TYPE_FLOAT); + break; + + case ir_unop_any: + assert(ir->operands[0]->type->base_type == GLSL_TYPE_BOOL); + assert(ir->type == glsl_type::bool_type); + break; + + case ir_unop_trunc: + case ir_unop_round_even: + case ir_unop_ceil: + case ir_unop_floor: + case ir_unop_fract: + case ir_unop_sin: + case ir_unop_cos: + case ir_unop_sin_reduced: + case ir_unop_cos_reduced: + case ir_unop_dFdx: + case ir_unop_dFdy: + assert(ir->operands[0]->type->base_type == GLSL_TYPE_FLOAT); + assert(ir->operands[0]->type == ir->type); + break; + + case ir_unop_noise: + /* XXX what can we assert here? */ + break; + + case ir_binop_add: + case ir_binop_sub: + case ir_binop_mul: + case ir_binop_div: + case ir_binop_mod: + case ir_binop_min: + case ir_binop_max: + case ir_binop_pow: + if (ir->operands[0]->type->is_scalar()) + assert(ir->operands[1]->type == ir->type); + else if (ir->operands[1]->type->is_scalar()) + assert(ir->operands[0]->type == ir->type); + else if (ir->operands[0]->type->is_vector() && + ir->operands[1]->type->is_vector()) { + assert(ir->operands[0]->type == ir->operands[1]->type); + assert(ir->operands[0]->type == ir->type); + } + break; + + case ir_binop_less: + case ir_binop_greater: + case ir_binop_lequal: + case ir_binop_gequal: + case ir_binop_equal: + case ir_binop_nequal: + /* The semantics of the IR operators differ from the GLSL <, >, <=, >=, + * ==, and != operators. The IR operators perform a component-wise + * comparison on scalar or vector types and return a boolean scalar or + * vector type of the same size. + */ + assert(ir->type->base_type == GLSL_TYPE_BOOL); + assert(ir->operands[0]->type == ir->operands[1]->type); + assert(ir->operands[0]->type->is_vector() + || ir->operands[0]->type->is_scalar()); + assert(ir->operands[0]->type->vector_elements + == ir->type->vector_elements); + break; + + case ir_binop_all_equal: + case ir_binop_any_nequal: + /* GLSL == and != operate on scalars, vectors, matrices and arrays, and + * return a scalar boolean. The IR matches that. + */ + assert(ir->type == glsl_type::bool_type); + assert(ir->operands[0]->type == ir->operands[1]->type); + break; + + case ir_binop_lshift: + case ir_binop_rshift: + assert(ir->operands[0]->type->is_integer() && + ir->operands[1]->type->is_integer()); + if (ir->operands[0]->type->is_scalar()) { + assert(ir->operands[1]->type->is_scalar()); + } + if (ir->operands[0]->type->is_vector() && + ir->operands[1]->type->is_vector()) { + assert(ir->operands[0]->type->components() == + ir->operands[1]->type->components()); + } + assert(ir->type == ir->operands[0]->type); + break; + + case ir_binop_bit_and: + case ir_binop_bit_xor: + case ir_binop_bit_or: + assert(ir->operands[0]->type->base_type == + ir->operands[1]->type->base_type); + assert(ir->type->is_integer()); + if (ir->operands[0]->type->is_vector() && + ir->operands[1]->type->is_vector()) { + assert(ir->operands[0]->type->vector_elements == + ir->operands[1]->type->vector_elements); + } + break; + + case ir_binop_logic_and: + case ir_binop_logic_xor: + case ir_binop_logic_or: + assert(ir->type == glsl_type::bool_type); + assert(ir->operands[0]->type == glsl_type::bool_type); + assert(ir->operands[1]->type == glsl_type::bool_type); + break; + + case ir_binop_dot: + assert(ir->type == glsl_type::float_type); + assert(ir->operands[0]->type->base_type == GLSL_TYPE_FLOAT); + assert(ir->operands[0]->type->is_vector()); + assert(ir->operands[0]->type == ir->operands[1]->type); + break; + + case ir_quadop_vector: + /* The vector operator collects some number of scalars and generates a + * vector from them. + * + * - All of the operands must be scalar. + * - Number of operands must matche the size of the resulting vector. + * - Base type of the operands must match the base type of the result. + */ + assert(ir->type->is_vector()); + switch (ir->type->vector_elements) { + case 2: + assert(ir->operands[0]->type->is_scalar()); + assert(ir->operands[0]->type->base_type == ir->type->base_type); + assert(ir->operands[1]->type->is_scalar()); + assert(ir->operands[1]->type->base_type == ir->type->base_type); + assert(ir->operands[2] == NULL); + assert(ir->operands[3] == NULL); + break; + case 3: + assert(ir->operands[0]->type->is_scalar()); + assert(ir->operands[0]->type->base_type == ir->type->base_type); + assert(ir->operands[1]->type->is_scalar()); + assert(ir->operands[1]->type->base_type == ir->type->base_type); + assert(ir->operands[2]->type->is_scalar()); + assert(ir->operands[2]->type->base_type == ir->type->base_type); + assert(ir->operands[3] == NULL); + break; + case 4: + assert(ir->operands[0]->type->is_scalar()); + assert(ir->operands[0]->type->base_type == ir->type->base_type); + assert(ir->operands[1]->type->is_scalar()); + assert(ir->operands[1]->type->base_type == ir->type->base_type); + assert(ir->operands[2]->type->is_scalar()); + assert(ir->operands[2]->type->base_type == ir->type->base_type); + assert(ir->operands[3]->type->is_scalar()); + assert(ir->operands[3]->type->base_type == ir->type->base_type); + break; + default: + /* The is_vector assertion above should prevent execution from ever + * getting here. + */ + assert(!"Should not get here."); + break; + } + } + + return visit_continue; +} + +ir_visitor_status +ir_validate::visit_leave(ir_swizzle *ir) +{ + int chans[4] = {ir->mask.x, ir->mask.y, ir->mask.z, ir->mask.w}; + + for (unsigned int i = 0; i < ir->type->vector_elements; i++) { + if (chans[i] >= ir->val->type->vector_elements) { + printf("ir_swizzle @ %p specifies a channel not present " + "in the value.\n", (void *) ir); + ir->print(); + abort(); + } + } + + return visit_continue; +} + +ir_visitor_status +ir_validate::visit(ir_variable *ir) +{ + /* An ir_variable is the one thing that can (and will) appear multiple times + * in an IR tree. It is added to the hashtable so that it can be used + * in the ir_dereference_variable handler to ensure that a variable is + * declared before it is dereferenced. + */ + if (ir->name) + assert(ralloc_parent(ir->name) == ir); + + hash_table_insert(ht, ir, ir); + return visit_continue; +} + +ir_visitor_status +ir_validate::visit_enter(ir_assignment *ir) +{ + const ir_dereference *const lhs = ir->lhs; + if (lhs->type->is_scalar() || lhs->type->is_vector()) { + if (ir->write_mask == 0) { + printf("Assignment LHS is %s, but write mask is 0:\n", + lhs->type->is_scalar() ? "scalar" : "vector"); + ir->print(); + abort(); + } + + int lhs_components = 0; + for (int i = 0; i < 4; i++) { + if (ir->write_mask & (1 << i)) + lhs_components++; + } + + if (lhs_components != ir->rhs->type->vector_elements) { + printf("Assignment count of LHS write mask channels enabled not\n" + "matching RHS vector size (%d LHS, %d RHS).\n", + lhs_components, ir->rhs->type->vector_elements); + ir->print(); + abort(); + } + } + + this->validate_ir(ir, this->data); + + return visit_continue; +} + +ir_visitor_status +ir_validate::visit_enter(ir_call *ir) +{ + ir_function_signature *const callee = ir->get_callee(); + + if (callee->ir_type != ir_type_function_signature) { + printf("IR called by ir_call is not ir_function_signature!\n"); + abort(); + } + + return visit_continue; +} + +void +ir_validate::validate_ir(ir_instruction *ir, void *data) +{ + struct hash_table *ht = (struct hash_table *) data; + + if (hash_table_find(ht, ir)) { + printf("Instruction node present twice in ir tree:\n"); + ir->print(); + printf("\n"); + abort(); + } + hash_table_insert(ht, ir, ir); +} + +void +check_node_type(ir_instruction *ir, void *data) +{ + (void) data; + + if (ir->ir_type <= ir_type_unset || ir->ir_type >= ir_type_max) { + printf("Instruction node with unset type\n"); + ir->print(); printf("\n"); + } + assert(ir->type != glsl_type::error_type); +} + +void +validate_ir_tree(exec_list *instructions) +{ + ir_validate v; + + v.run(instructions); + + foreach_iter(exec_list_iterator, iter, *instructions) { + ir_instruction *ir = (ir_instruction *)iter.get(); + + visit_tree(ir, check_node_type, NULL); + } +} diff --git a/mesalib/src/mesa/SConscript b/mesalib/src/mesa/SConscript index f797d62dc..a093469ec 100644 --- a/mesalib/src/mesa/SConscript +++ b/mesalib/src/mesa/SConscript @@ -1,402 +1,402 @@ -####################################################################### -# SConscript for Mesa - - -Import('*') - -env = env.Clone() - -env.Append(CPPPATH = [ - '#/src/mapi', - '#/src/glsl', - '#/src/mesa', -]) - -env.Append(CPPDEFINES = [ - 'FEATURE_GL=1', -]) - -if env['platform'] == 'windows': - env.Append(CPPDEFINES = [ - '_GDI32_', # prevent gl* being declared __declspec(dllimport) in MS headers - 'BUILD_GL32', # declare gl* as __declspec(dllexport) in Mesa headers - ]) - if not env['gles']: - # prevent _glapi_* from being declared __declspec(dllimport) - env.Append(CPPDEFINES = ['_GLAPI_NO_EXPORTS']) -else: - env.Append(CPPDEFINES = [ - 'IN_DRI_DRIVER', # enable the remap table (for DRI drivers) - ]) - -# -# Source files -# - -main_sources = [ - 'main/api_arrayelt.c', - 'main/api_exec.c', - 'main/api_loopback.c', - 'main/api_noop.c', - 'main/api_validate.c', - 'main/accum.c', - 'main/arbprogram.c', - 'main/atifragshader.c', - 'main/attrib.c', - 'main/arrayobj.c', - 'main/blend.c', - 'main/bufferobj.c', - 'main/buffers.c', - 'main/clear.c', - 'main/clip.c', - 'main/colortab.c', - 'main/condrender.c', - 'main/context.c', - 'main/convolve.c', - 'main/cpuinfo.c', - 'main/debug.c', - 'main/depth.c', - 'main/depthstencil.c', - 'main/dlist.c', - 'main/dlopen.c', - 'main/drawpix.c', - 'main/drawtex.c', - 'main/enable.c', - 'main/enums.c', - 'main/eval.c', - 'main/execmem.c', - 'main/extensions.c', - 'main/fbobject.c', - 'main/feedback.c', - 'main/ffvertex_prog.c', - 'main/fog.c', - 'main/formats.c', - 'main/framebuffer.c', - 'main/get.c', - 'main/getstring.c', - 'main/hash.c', - 'main/hint.c', - 'main/histogram.c', - 'main/image.c', - 'main/imports.c', - 'main/light.c', - 'main/lines.c', - 'main/matrix.c', - 'main/mipmap.c', - 'main/mm.c', - 'main/multisample.c', - 'main/nvprogram.c', - 'main/pack.c', - 'main/pbo.c', - 'main/pixel.c', - 'main/pixelstore.c', - 'main/pixeltransfer.c', - 'main/points.c', - 'main/polygon.c', - 'main/querymatrix.c', - 'main/queryobj.c', - 'main/rastpos.c', - 'main/readpix.c', - 'main/remap.c', - 'main/renderbuffer.c', - 'main/scissor.c', - 'main/shaderapi.c', - 'main/shaderobj.c', - 'main/shared.c', - 'main/state.c', - 'main/stencil.c', - 'main/syncobj.c', - 'main/texcompress.c', - 'main/texcompress_rgtc.c', - 'main/texcompress_s3tc.c', - 'main/texcompress_fxt1.c', - 'main/texenv.c', - 'main/texenvprogram.c', - 'main/texfetch.c', - 'main/texformat.c', - 'main/texgen.c', - 'main/texgetimage.c', - 'main/teximage.c', - 'main/texobj.c', - 'main/texpal.c', - 'main/texparam.c', - 'main/texrender.c', - 'main/texstate.c', - 'main/texstore.c', - 'main/transformfeedback.c', - 'main/uniforms.c', - 'main/varray.c', - 'main/version.c', - 'main/viewport.c', - 'main/vtxfmt.c', -] - -math_sources = [ - 'math/m_debug_clip.c', - 'math/m_debug_norm.c', - 'math/m_debug_xform.c', - 'math/m_eval.c', - 'math/m_matrix.c', - 'math/m_translate.c', - 'math/m_vector.c', - 'math/m_xform.c', -] - -vbo_sources = [ - 'vbo/vbo_context.c', - 'vbo/vbo_exec.c', - 'vbo/vbo_exec_api.c', - 'vbo/vbo_exec_array.c', - 'vbo/vbo_exec_draw.c', - 'vbo/vbo_exec_eval.c', - 'vbo/vbo_rebase.c', - 'vbo/vbo_split.c', - 'vbo/vbo_split_copy.c', - 'vbo/vbo_split_inplace.c', - 'vbo/vbo_save.c', - 'vbo/vbo_save_api.c', - 'vbo/vbo_save_draw.c', - 'vbo/vbo_save_loopback.c', -] - -vf_sources = [ - 'vf/vf.c', - 'vf/vf_generic.c', - 'vf/vf_sse.c', -] - -statetracker_sources = [ - 'state_tracker/st_atom.c', - 'state_tracker/st_atom_blend.c', - 'state_tracker/st_atom_clip.c', - 'state_tracker/st_atom_constbuf.c', - 'state_tracker/st_atom_depth.c', - 'state_tracker/st_atom_framebuffer.c', - 'state_tracker/st_atom_msaa.c', - 'state_tracker/st_atom_pixeltransfer.c', - 'state_tracker/st_atom_sampler.c', - 'state_tracker/st_atom_scissor.c', - 'state_tracker/st_atom_shader.c', - 'state_tracker/st_atom_rasterizer.c', - 'state_tracker/st_atom_stipple.c', - 'state_tracker/st_atom_texture.c', - 'state_tracker/st_atom_viewport.c', - 'state_tracker/st_cb_accum.c', - 'state_tracker/st_cb_bitmap.c', - 'state_tracker/st_cb_blit.c', - 'state_tracker/st_cb_bufferobjects.c', - 'state_tracker/st_cb_clear.c', - 'state_tracker/st_cb_condrender.c', - 'state_tracker/st_cb_flush.c', - 'state_tracker/st_cb_drawpixels.c', - 'state_tracker/st_cb_drawtex.c', - 'state_tracker/st_cb_eglimage.c', - 'state_tracker/st_cb_fbo.c', - 'state_tracker/st_cb_feedback.c', - 'state_tracker/st_cb_program.c', - 'state_tracker/st_cb_queryobj.c', - 'state_tracker/st_cb_rasterpos.c', - 'state_tracker/st_cb_readpixels.c', - 'state_tracker/st_cb_syncobj.c', - 'state_tracker/st_cb_strings.c', - 'state_tracker/st_cb_texture.c', - 'state_tracker/st_cb_viewport.c', - 'state_tracker/st_cb_xformfb.c', - 'state_tracker/st_context.c', - 'state_tracker/st_debug.c', - 'state_tracker/st_draw.c', - 'state_tracker/st_draw_feedback.c', - 'state_tracker/st_extensions.c', - 'state_tracker/st_format.c', - 'state_tracker/st_gen_mipmap.c', - 'state_tracker/st_manager.c', - 'state_tracker/st_mesa_to_tgsi.c', - 'state_tracker/st_program.c', - 'state_tracker/st_texture.c', -] - -env.Append(YACCFLAGS = '-d') -program_lex = env.CFile('program/lex.yy.c', 'program/program_lexer.l') -program_parse = env.CFile('program/program_parse.tab.c', - 'program/program_parse.y') - -# Make program/program_parse.tab.h reacheable from the include path -env.Append(CPPPATH = [Dir('.').abspath]) - -program_sources = [ - 'program/arbprogparse.c', - 'program/hash_table.c', - 'program/ir_to_mesa.cpp', - 'program/nvfragparse.c', - 'program/nvvertparse.c', - 'program/program.c', - 'program/program_parse_extra.c', - 'program/prog_cache.c', - 'program/prog_execute.c', - 'program/prog_instruction.c', - 'program/prog_noise.c', - 'program/prog_optimize.c', - 'program/prog_parameter.c', - 'program/prog_parameter_layout.c', - 'program/prog_print.c', - 'program/prog_statevars.c', - 'program/prog_uniform.c', - 'program/programopt.c', - 'program/sampler.cpp', - 'program/symbol_table.c', - program_lex, - program_parse[0], -] - -mesa_sources = ( - main_sources + - math_sources + - program_sources + - vbo_sources + - vf_sources + - statetracker_sources -) - -if env['gles']: - from sys import executable as python_cmd - - env.Append(CPPDEFINES = ['FEATURE_ES1=1', 'FEATURE_ES2=1']) - - # generate GLES sources - gles_sources = [] - gles_sources += env.CodeGenerate( - target = 'main/api_exec_es1.c', - script = 'main/es_generator.py', - source = 'main/APIspec.xml', - command = python_cmd + ' $SCRIPT -S $SOURCE -V GLES1.1 > $TARGET' - ) - gles_sources += env.CodeGenerate( - target = 'main/api_exec_es2.c', - script = 'main/es_generator.py', - source = 'main/APIspec.xml', - command = python_cmd + ' $SCRIPT -S $SOURCE -V GLES2.0 > $TARGET' - ) - - # generate GLES headers - GLAPI = '#src/mapi/glapi/' - gles_headers = [] - gles_headers += env.CodeGenerate( - target = 'es1api/main/glapidispatch.h', - script = GLAPI + 'gen/gl_table.py', - source = GLAPI + 'gen-es/es1_API.xml', - command = python_cmd + ' $SCRIPT -c -m remap_table -f $SOURCE > $TARGET', - ) - gles_headers += env.CodeGenerate( - target = 'es1api/main/remap_helper.h', - script = GLAPI + 'gen/remap_helper.py', - source = GLAPI + 'gen-es/es1_API.xml', - command = python_cmd + ' $SCRIPT -f $SOURCE > $TARGET', - ) - gles_headers += env.CodeGenerate( - target = 'es2api/main/glapidispatch.h', - script = GLAPI + 'gen/gl_table.py', - source = GLAPI + 'gen-es/es2_API.xml', - command = python_cmd + ' $SCRIPT -c -m remap_table -f $SOURCE > $TARGET', - ) - gles_headers += env.CodeGenerate( - target = 'es2api/main/remap_helper.h', - script = GLAPI + 'gen/remap_helper.py', - source = GLAPI + 'gen-es/es2_API.xml', - command = python_cmd + ' $SCRIPT -f $SOURCE > $TARGET', - ) - - env.Depends(gles_sources, gles_headers) - - # gles_sources #include gles_headers with full path - env.Append(CPPPATH = [gles_headers[0].dir.up().up()]) - - mesa_sources += gles_sources - -# -# Assembly sources -# -if env['gcc'] and env['platform'] != 'windows': - if env['machine'] == 'x86': - env.Append(CPPDEFINES = [ - 'USE_X86_ASM', - 'USE_MMX_ASM', - 'USE_3DNOW_ASM', - 'USE_SSE_ASM', - ]) - mesa_sources += [ - 'x86/common_x86.c', - 'x86/x86_xform.c', - 'x86/3dnow.c', - 'x86/sse.c', - 'x86/common_x86_asm.S', - 'x86/x86_xform2.S', - 'x86/x86_xform3.S', - 'x86/x86_xform4.S', - 'x86/x86_cliptest.S', - 'x86/mmx_blend.S', - 'x86/3dnow_xform1.S', - 'x86/3dnow_xform2.S', - 'x86/3dnow_xform3.S', - 'x86/3dnow_xform4.S', - 'x86/3dnow_normal.S', - 'x86/sse_xform1.S', - 'x86/sse_xform2.S', - 'x86/sse_xform3.S', - 'x86/sse_xform4.S', - 'x86/sse_normal.S', - 'x86/read_rgba_span_x86.S', - ] - elif env['machine'] == 'x86_64': - env.Append(CPPDEFINES = [ - 'USE_X86_64_ASM', - ]) - mesa_sources += [ - 'x86-64/x86-64.c', - 'x86-64/xform4.S', - ] - elif env['machine'] == 'ppc': - env.Append(CPPDEFINES = [ - 'USE_PPC_ASM', - 'USE_VMX_ASM', - ]) - mesa_sources += [ - 'ppc/common_ppc.c', - ] - elif env['machine'] == 'sparc': - mesa_sources += [ - 'sparc/sparc.c', - 'sparc/clip.S', - 'sparc/norm.S', - 'sparc/xform.S', - ] - else: - pass - - # Generate matypes.h - if env['machine'] in ('x86', 'x86_64'): - # See http://www.scons.org/wiki/UsingCodeGenerators - gen_matypes = env.Program( - target = 'gen_matypes', - source = 'x86/gen_matypes.c', - ) - matypes = env.Command( - 'matypes.h', - gen_matypes, - gen_matypes[0].abspath + ' > $TARGET', - ) - # Add the dir containing the generated header (somewhere inside the - # build dir) to the include path - env.Append(CPPPATH = [matypes[0].dir]) - -# -# Libraries -# - -mesa = env.ConvenienceLibrary( - target = 'mesa', - source = mesa_sources, -) - -env.Alias('mesa', mesa) - -Export('mesa') +####################################################################### +# SConscript for Mesa + + +Import('*') + +env = env.Clone() + +env.Append(CPPPATH = [ + '#/src/mapi', + '#/src/glsl', + '#/src/mesa', +]) + +env.Append(CPPDEFINES = [ + 'FEATURE_GL=1', +]) + +if env['platform'] == 'windows': + env.Append(CPPDEFINES = [ + '_GDI32_', # prevent gl* being declared __declspec(dllimport) in MS headers + 'BUILD_GL32', # declare gl* as __declspec(dllexport) in Mesa headers + ]) + if not env['gles']: + # prevent _glapi_* from being declared __declspec(dllimport) + env.Append(CPPDEFINES = ['_GLAPI_NO_EXPORTS']) +else: + env.Append(CPPDEFINES = [ + 'IN_DRI_DRIVER', # enable the remap table (for DRI drivers) + ]) + +# +# Source files +# + +main_sources = [ + 'main/api_arrayelt.c', + 'main/api_exec.c', + 'main/api_loopback.c', + 'main/api_noop.c', + 'main/api_validate.c', + 'main/accum.c', + 'main/arbprogram.c', + 'main/atifragshader.c', + 'main/attrib.c', + 'main/arrayobj.c', + 'main/blend.c', + 'main/bufferobj.c', + 'main/buffers.c', + 'main/clear.c', + 'main/clip.c', + 'main/colortab.c', + 'main/condrender.c', + 'main/context.c', + 'main/convolve.c', + 'main/cpuinfo.c', + 'main/debug.c', + 'main/depth.c', + 'main/depthstencil.c', + 'main/dlist.c', + 'main/dlopen.c', + 'main/drawpix.c', + 'main/drawtex.c', + 'main/enable.c', + 'main/enums.c', + 'main/eval.c', + 'main/execmem.c', + 'main/extensions.c', + 'main/fbobject.c', + 'main/feedback.c', + 'main/ff_fragment_shader.cpp', + 'main/ffvertex_prog.c', + 'main/fog.c', + 'main/formats.c', + 'main/framebuffer.c', + 'main/get.c', + 'main/getstring.c', + 'main/hash.c', + 'main/hint.c', + 'main/histogram.c', + 'main/image.c', + 'main/imports.c', + 'main/light.c', + 'main/lines.c', + 'main/matrix.c', + 'main/mipmap.c', + 'main/mm.c', + 'main/multisample.c', + 'main/nvprogram.c', + 'main/pack.c', + 'main/pbo.c', + 'main/pixel.c', + 'main/pixelstore.c', + 'main/pixeltransfer.c', + 'main/points.c', + 'main/polygon.c', + 'main/querymatrix.c', + 'main/queryobj.c', + 'main/rastpos.c', + 'main/readpix.c', + 'main/remap.c', + 'main/renderbuffer.c', + 'main/scissor.c', + 'main/shaderapi.c', + 'main/shaderobj.c', + 'main/shared.c', + 'main/state.c', + 'main/stencil.c', + 'main/syncobj.c', + 'main/texcompress.c', + 'main/texcompress_rgtc.c', + 'main/texcompress_s3tc.c', + 'main/texcompress_fxt1.c', + 'main/texenv.c', + 'main/texfetch.c', + 'main/texformat.c', + 'main/texgen.c', + 'main/texgetimage.c', + 'main/teximage.c', + 'main/texobj.c', + 'main/texpal.c', + 'main/texparam.c', + 'main/texrender.c', + 'main/texstate.c', + 'main/texstore.c', + 'main/transformfeedback.c', + 'main/uniforms.c', + 'main/varray.c', + 'main/version.c', + 'main/viewport.c', + 'main/vtxfmt.c', +] + +math_sources = [ + 'math/m_debug_clip.c', + 'math/m_debug_norm.c', + 'math/m_debug_xform.c', + 'math/m_eval.c', + 'math/m_matrix.c', + 'math/m_translate.c', + 'math/m_vector.c', + 'math/m_xform.c', +] + +vbo_sources = [ + 'vbo/vbo_context.c', + 'vbo/vbo_exec.c', + 'vbo/vbo_exec_api.c', + 'vbo/vbo_exec_array.c', + 'vbo/vbo_exec_draw.c', + 'vbo/vbo_exec_eval.c', + 'vbo/vbo_rebase.c', + 'vbo/vbo_split.c', + 'vbo/vbo_split_copy.c', + 'vbo/vbo_split_inplace.c', + 'vbo/vbo_save.c', + 'vbo/vbo_save_api.c', + 'vbo/vbo_save_draw.c', + 'vbo/vbo_save_loopback.c', +] + +vf_sources = [ + 'vf/vf.c', + 'vf/vf_generic.c', + 'vf/vf_sse.c', +] + +statetracker_sources = [ + 'state_tracker/st_atom.c', + 'state_tracker/st_atom_blend.c', + 'state_tracker/st_atom_clip.c', + 'state_tracker/st_atom_constbuf.c', + 'state_tracker/st_atom_depth.c', + 'state_tracker/st_atom_framebuffer.c', + 'state_tracker/st_atom_msaa.c', + 'state_tracker/st_atom_pixeltransfer.c', + 'state_tracker/st_atom_sampler.c', + 'state_tracker/st_atom_scissor.c', + 'state_tracker/st_atom_shader.c', + 'state_tracker/st_atom_rasterizer.c', + 'state_tracker/st_atom_stipple.c', + 'state_tracker/st_atom_texture.c', + 'state_tracker/st_atom_viewport.c', + 'state_tracker/st_cb_accum.c', + 'state_tracker/st_cb_bitmap.c', + 'state_tracker/st_cb_blit.c', + 'state_tracker/st_cb_bufferobjects.c', + 'state_tracker/st_cb_clear.c', + 'state_tracker/st_cb_condrender.c', + 'state_tracker/st_cb_flush.c', + 'state_tracker/st_cb_drawpixels.c', + 'state_tracker/st_cb_drawtex.c', + 'state_tracker/st_cb_eglimage.c', + 'state_tracker/st_cb_fbo.c', + 'state_tracker/st_cb_feedback.c', + 'state_tracker/st_cb_program.c', + 'state_tracker/st_cb_queryobj.c', + 'state_tracker/st_cb_rasterpos.c', + 'state_tracker/st_cb_readpixels.c', + 'state_tracker/st_cb_syncobj.c', + 'state_tracker/st_cb_strings.c', + 'state_tracker/st_cb_texture.c', + 'state_tracker/st_cb_viewport.c', + 'state_tracker/st_cb_xformfb.c', + 'state_tracker/st_context.c', + 'state_tracker/st_debug.c', + 'state_tracker/st_draw.c', + 'state_tracker/st_draw_feedback.c', + 'state_tracker/st_extensions.c', + 'state_tracker/st_format.c', + 'state_tracker/st_gen_mipmap.c', + 'state_tracker/st_manager.c', + 'state_tracker/st_mesa_to_tgsi.c', + 'state_tracker/st_program.c', + 'state_tracker/st_texture.c', +] + +env.Append(YACCFLAGS = '-d') +program_lex = env.CFile('program/lex.yy.c', 'program/program_lexer.l') +program_parse = env.CFile('program/program_parse.tab.c', + 'program/program_parse.y') + +# Make program/program_parse.tab.h reacheable from the include path +env.Append(CPPPATH = [Dir('.').abspath]) + +program_sources = [ + 'program/arbprogparse.c', + 'program/hash_table.c', + 'program/ir_to_mesa.cpp', + 'program/nvfragparse.c', + 'program/nvvertparse.c', + 'program/program.c', + 'program/program_parse_extra.c', + 'program/prog_cache.c', + 'program/prog_execute.c', + 'program/prog_instruction.c', + 'program/prog_noise.c', + 'program/prog_optimize.c', + 'program/prog_parameter.c', + 'program/prog_parameter_layout.c', + 'program/prog_print.c', + 'program/prog_statevars.c', + 'program/prog_uniform.c', + 'program/programopt.c', + 'program/sampler.cpp', + 'program/symbol_table.c', + program_lex, + program_parse[0], +] + +mesa_sources = ( + main_sources + + math_sources + + program_sources + + vbo_sources + + vf_sources + + statetracker_sources +) + +if env['gles']: + from sys import executable as python_cmd + + env.Append(CPPDEFINES = ['FEATURE_ES1=1', 'FEATURE_ES2=1']) + + # generate GLES sources + gles_sources = [] + gles_sources += env.CodeGenerate( + target = 'main/api_exec_es1.c', + script = 'main/es_generator.py', + source = 'main/APIspec.xml', + command = python_cmd + ' $SCRIPT -S $SOURCE -V GLES1.1 > $TARGET' + ) + gles_sources += env.CodeGenerate( + target = 'main/api_exec_es2.c', + script = 'main/es_generator.py', + source = 'main/APIspec.xml', + command = python_cmd + ' $SCRIPT -S $SOURCE -V GLES2.0 > $TARGET' + ) + + # generate GLES headers + GLAPI = '#src/mapi/glapi/' + gles_headers = [] + gles_headers += env.CodeGenerate( + target = 'es1api/main/glapidispatch.h', + script = GLAPI + 'gen/gl_table.py', + source = GLAPI + 'gen-es/es1_API.xml', + command = python_cmd + ' $SCRIPT -c -m remap_table -f $SOURCE > $TARGET', + ) + gles_headers += env.CodeGenerate( + target = 'es1api/main/remap_helper.h', + script = GLAPI + 'gen/remap_helper.py', + source = GLAPI + 'gen-es/es1_API.xml', + command = python_cmd + ' $SCRIPT -f $SOURCE > $TARGET', + ) + gles_headers += env.CodeGenerate( + target = 'es2api/main/glapidispatch.h', + script = GLAPI + 'gen/gl_table.py', + source = GLAPI + 'gen-es/es2_API.xml', + command = python_cmd + ' $SCRIPT -c -m remap_table -f $SOURCE > $TARGET', + ) + gles_headers += env.CodeGenerate( + target = 'es2api/main/remap_helper.h', + script = GLAPI + 'gen/remap_helper.py', + source = GLAPI + 'gen-es/es2_API.xml', + command = python_cmd + ' $SCRIPT -f $SOURCE > $TARGET', + ) + + env.Depends(gles_sources, gles_headers) + + # gles_sources #include gles_headers with full path + env.Append(CPPPATH = [gles_headers[0].dir.up().up()]) + + mesa_sources += gles_sources + +# +# Assembly sources +# +if env['gcc'] and env['platform'] != 'windows': + if env['machine'] == 'x86': + env.Append(CPPDEFINES = [ + 'USE_X86_ASM', + 'USE_MMX_ASM', + 'USE_3DNOW_ASM', + 'USE_SSE_ASM', + ]) + mesa_sources += [ + 'x86/common_x86.c', + 'x86/x86_xform.c', + 'x86/3dnow.c', + 'x86/sse.c', + 'x86/common_x86_asm.S', + 'x86/x86_xform2.S', + 'x86/x86_xform3.S', + 'x86/x86_xform4.S', + 'x86/x86_cliptest.S', + 'x86/mmx_blend.S', + 'x86/3dnow_xform1.S', + 'x86/3dnow_xform2.S', + 'x86/3dnow_xform3.S', + 'x86/3dnow_xform4.S', + 'x86/3dnow_normal.S', + 'x86/sse_xform1.S', + 'x86/sse_xform2.S', + 'x86/sse_xform3.S', + 'x86/sse_xform4.S', + 'x86/sse_normal.S', + 'x86/read_rgba_span_x86.S', + ] + elif env['machine'] == 'x86_64': + env.Append(CPPDEFINES = [ + 'USE_X86_64_ASM', + ]) + mesa_sources += [ + 'x86-64/x86-64.c', + 'x86-64/xform4.S', + ] + elif env['machine'] == 'ppc': + env.Append(CPPDEFINES = [ + 'USE_PPC_ASM', + 'USE_VMX_ASM', + ]) + mesa_sources += [ + 'ppc/common_ppc.c', + ] + elif env['machine'] == 'sparc': + mesa_sources += [ + 'sparc/sparc.c', + 'sparc/clip.S', + 'sparc/norm.S', + 'sparc/xform.S', + ] + else: + pass + + # Generate matypes.h + if env['machine'] in ('x86', 'x86_64'): + # See http://www.scons.org/wiki/UsingCodeGenerators + gen_matypes = env.Program( + target = 'gen_matypes', + source = 'x86/gen_matypes.c', + ) + matypes = env.Command( + 'matypes.h', + gen_matypes, + gen_matypes[0].abspath + ' > $TARGET', + ) + # Add the dir containing the generated header (somewhere inside the + # build dir) to the include path + env.Append(CPPPATH = [matypes[0].dir]) + +# +# Libraries +# + +mesa = env.ConvenienceLibrary( + target = 'mesa', + source = mesa_sources, +) + +env.Alias('mesa', mesa) + +Export('mesa') diff --git a/mesalib/src/mesa/main/bufferobj.c b/mesalib/src/mesa/main/bufferobj.c index 44072fbc5..d5d0c9072 100644 --- a/mesalib/src/mesa/main/bufferobj.c +++ b/mesalib/src/mesa/main/bufferobj.c @@ -1,1917 +1,1918 @@ -/* - * Mesa 3-D graphics library - * Version: 7.6 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (C) 2009 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file bufferobj.c - * \brief Functions for the GL_ARB_vertex/pixel_buffer_object extensions. - * \author Brian Paul, Ian Romanick - */ - - -#include "glheader.h" -#include "enums.h" -#include "hash.h" -#include "imports.h" -#include "image.h" -#include "context.h" -#include "bufferobj.h" -#include "fbobject.h" -#include "mfeatures.h" -#include "mtypes.h" -#include "texobj.h" - - -/* Debug flags */ -/*#define VBO_DEBUG*/ -/*#define BOUNDS_CHECK*/ - - -#if FEATURE_OES_mapbuffer -#define DEFAULT_ACCESS GL_MAP_WRITE_BIT -#else -#define DEFAULT_ACCESS (GL_MAP_READ_BIT | GL_MAP_WRITE_BIT) -#endif - - -/** - * Used as a placeholder for buffer objects between glGenBuffers() and - * glBindBuffer() so that glIsBuffer() can work correctly. - */ -static struct gl_buffer_object DummyBufferObject; - - -/** - * Return pointer to address of a buffer object target. - * \param ctx the GL context - * \param target the buffer object target to be retrieved. - * \return pointer to pointer to the buffer object bound to \c target in the - * specified context or \c NULL if \c target is invalid. - */ -static INLINE struct gl_buffer_object ** -get_buffer_target(struct gl_context *ctx, GLenum target) -{ - switch (target) { - case GL_ARRAY_BUFFER_ARB: - return &ctx->Array.ArrayBufferObj; - case GL_ELEMENT_ARRAY_BUFFER_ARB: - return &ctx->Array.ElementArrayBufferObj; - case GL_PIXEL_PACK_BUFFER_EXT: - return &ctx->Pack.BufferObj; - case GL_PIXEL_UNPACK_BUFFER_EXT: - return &ctx->Unpack.BufferObj; - case GL_COPY_READ_BUFFER: - return &ctx->CopyReadBuffer; - case GL_COPY_WRITE_BUFFER: - return &ctx->CopyWriteBuffer; -#if FEATURE_EXT_transform_feedback - case GL_TRANSFORM_FEEDBACK_BUFFER: - if (ctx->Extensions.EXT_transform_feedback) { - return &ctx->TransformFeedback.CurrentBuffer; - } - break; -#endif - default: - return NULL; - } - return NULL; -} - - -/** - * Get the buffer object bound to the specified target in a GL context. - * \param ctx the GL context - * \param target the buffer object target to be retrieved. - * \return pointer to the buffer object bound to \c target in the - * specified context or \c NULL if \c target is invalid. - */ -static INLINE struct gl_buffer_object * -get_buffer(struct gl_context *ctx, GLenum target) -{ - struct gl_buffer_object **bufObj = get_buffer_target(ctx, target); - if (bufObj) - return *bufObj; - return NULL; -} - - -/** - * Convert a GLbitfield describing the mapped buffer access flags - * into one of GL_READ_WRITE, GL_READ_ONLY, or GL_WRITE_ONLY. - */ -static GLenum -simplified_access_mode(GLbitfield access) -{ - const GLbitfield rwFlags = GL_MAP_READ_BIT | GL_MAP_WRITE_BIT; - if ((access & rwFlags) == rwFlags) - return GL_READ_WRITE; - if ((access & GL_MAP_READ_BIT) == GL_MAP_READ_BIT) - return GL_READ_ONLY; - if ((access & GL_MAP_WRITE_BIT) == GL_MAP_WRITE_BIT) - return GL_WRITE_ONLY; - return GL_READ_WRITE; /* this should never happen, but no big deal */ -} - - -/** - * Tests the subdata range parameters and sets the GL error code for - * \c glBufferSubDataARB and \c glGetBufferSubDataARB. - * - * \param ctx GL context. - * \param target Buffer object target on which to operate. - * \param offset Offset of the first byte of the subdata range. - * \param size Size, in bytes, of the subdata range. - * \param caller Name of calling function for recording errors. - * \return A pointer to the buffer object bound to \c target in the - * specified context or \c NULL if any of the parameter or state - * conditions for \c glBufferSubDataARB or \c glGetBufferSubDataARB - * are invalid. - * - * \sa glBufferSubDataARB, glGetBufferSubDataARB - */ -static struct gl_buffer_object * -buffer_object_subdata_range_good( struct gl_context * ctx, GLenum target, - GLintptrARB offset, GLsizeiptrARB size, - const char *caller ) -{ - struct gl_buffer_object *bufObj; - - if (size < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "%s(size < 0)", caller); - return NULL; - } - - if (offset < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "%s(offset < 0)", caller); - return NULL; - } - - bufObj = get_buffer(ctx, target); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", caller); - return NULL; - } - if (!_mesa_is_bufferobj(bufObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller); - return NULL; - } - if (offset + size > bufObj->Size) { - _mesa_error(ctx, GL_INVALID_VALUE, - "%s(size + offset > buffer size)", caller); - return NULL; - } - if (_mesa_bufferobj_mapped(bufObj)) { - /* Buffer is currently mapped */ - _mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller); - return NULL; - } - - return bufObj; -} - - -/** - * Allocate and initialize a new buffer object. - * - * Default callback for the \c dd_function_table::NewBufferObject() hook. - */ -static struct gl_buffer_object * -_mesa_new_buffer_object( struct gl_context *ctx, GLuint name, GLenum target ) -{ - struct gl_buffer_object *obj; - - (void) ctx; - - obj = MALLOC_STRUCT(gl_buffer_object); - _mesa_initialize_buffer_object(obj, name, target); - return obj; -} - - -/** - * Delete a buffer object. - * - * Default callback for the \c dd_function_table::DeleteBuffer() hook. - */ -static void -_mesa_delete_buffer_object( struct gl_context *ctx, struct gl_buffer_object *bufObj ) -{ - (void) ctx; - - if (bufObj->Data) - free(bufObj->Data); - - /* assign strange values here to help w/ debugging */ - bufObj->RefCount = -1000; - bufObj->Name = ~0; - - _glthread_DESTROY_MUTEX(bufObj->Mutex); - free(bufObj); -} - - - -/** - * Set ptr to bufObj w/ reference counting. - */ -void -_mesa_reference_buffer_object(struct gl_context *ctx, - struct gl_buffer_object **ptr, - struct gl_buffer_object *bufObj) -{ - if (*ptr == bufObj) - return; - - if (*ptr) { - /* Unreference the old buffer */ - GLboolean deleteFlag = GL_FALSE; - struct gl_buffer_object *oldObj = *ptr; - - _glthread_LOCK_MUTEX(oldObj->Mutex); - ASSERT(oldObj->RefCount > 0); - oldObj->RefCount--; -#if 0 - printf("BufferObj %p %d DECR to %d\n", - (void *) oldObj, oldObj->Name, oldObj->RefCount); -#endif - deleteFlag = (oldObj->RefCount == 0); - _glthread_UNLOCK_MUTEX(oldObj->Mutex); - - if (deleteFlag) { - - /* some sanity checking: don't delete a buffer still in use */ -#if 0 - /* unfortunately, these tests are invalid during context tear-down */ - ASSERT(ctx->Array.ArrayBufferObj != bufObj); - ASSERT(ctx->Array.ElementArrayBufferObj != bufObj); - ASSERT(ctx->Array.ArrayObj->Vertex.BufferObj != bufObj); -#endif - - ASSERT(ctx->Driver.DeleteBuffer); - ctx->Driver.DeleteBuffer(ctx, oldObj); - } - - *ptr = NULL; - } - ASSERT(!*ptr); - - if (bufObj) { - /* reference new buffer */ - _glthread_LOCK_MUTEX(bufObj->Mutex); - if (bufObj->RefCount == 0) { - /* this buffer's being deleted (look just above) */ - /* Not sure this can every really happen. Warn if it does. */ - _mesa_problem(NULL, "referencing deleted buffer object"); - *ptr = NULL; - } - else { - bufObj->RefCount++; -#if 0 - printf("BufferObj %p %d INCR to %d\n", - (void *) bufObj, bufObj->Name, bufObj->RefCount); -#endif - *ptr = bufObj; - } - _glthread_UNLOCK_MUTEX(bufObj->Mutex); - } -} - - -/** - * Initialize a buffer object to default values. - */ -void -_mesa_initialize_buffer_object( struct gl_buffer_object *obj, - GLuint name, GLenum target ) -{ - (void) target; - - memset(obj, 0, sizeof(struct gl_buffer_object)); - _glthread_INIT_MUTEX(obj->Mutex); - obj->RefCount = 1; - obj->Name = name; - obj->Usage = GL_STATIC_DRAW_ARB; - obj->AccessFlags = DEFAULT_ACCESS; -} - - -/** - * Allocate space for and store data in a buffer object. Any data that was - * previously stored in the buffer object is lost. If \c data is \c NULL, - * memory will be allocated, but no copy will occur. - * - * This is the default callback for \c dd_function_table::BufferData() - * Note that all GL error checking will have been done already. - * - * \param ctx GL context. - * \param target Buffer object target on which to operate. - * \param size Size, in bytes, of the new data store. - * \param data Pointer to the data to store in the buffer object. This - * pointer may be \c NULL. - * \param usage Hints about how the data will be used. - * \param bufObj Object to be used. - * - * \return GL_TRUE for success, GL_FALSE for failure - * \sa glBufferDataARB, dd_function_table::BufferData. - */ -static GLboolean -_mesa_buffer_data( struct gl_context *ctx, GLenum target, GLsizeiptrARB size, - const GLvoid * data, GLenum usage, - struct gl_buffer_object * bufObj ) -{ - void * new_data; - - (void) ctx; (void) target; - - new_data = _mesa_realloc( bufObj->Data, bufObj->Size, size ); - if (new_data) { - bufObj->Data = (GLubyte *) new_data; - bufObj->Size = size; - bufObj->Usage = usage; - - if (data) { - memcpy( bufObj->Data, data, size ); - } - - return GL_TRUE; - } - else { - return GL_FALSE; - } -} - - -/** - * Replace data in a subrange of buffer object. If the data range - * specified by \c size + \c offset extends beyond the end of the buffer or - * if \c data is \c NULL, no copy is performed. - * - * This is the default callback for \c dd_function_table::BufferSubData() - * Note that all GL error checking will have been done already. - * - * \param ctx GL context. - * \param target Buffer object target on which to operate. - * \param offset Offset of the first byte to be modified. - * \param size Size, in bytes, of the data range. - * \param data Pointer to the data to store in the buffer object. - * \param bufObj Object to be used. - * - * \sa glBufferSubDataARB, dd_function_table::BufferSubData. - */ -static void -_mesa_buffer_subdata( struct gl_context *ctx, GLenum target, GLintptrARB offset, - GLsizeiptrARB size, const GLvoid * data, - struct gl_buffer_object * bufObj ) -{ - (void) ctx; (void) target; - - /* this should have been caught in _mesa_BufferSubData() */ - ASSERT(size + offset <= bufObj->Size); - - if (bufObj->Data) { - memcpy( (GLubyte *) bufObj->Data + offset, data, size ); - } -} - - -/** - * Retrieve data from a subrange of buffer object. If the data range - * specified by \c size + \c offset extends beyond the end of the buffer or - * if \c data is \c NULL, no copy is performed. - * - * This is the default callback for \c dd_function_table::GetBufferSubData() - * Note that all GL error checking will have been done already. - * - * \param ctx GL context. - * \param target Buffer object target on which to operate. - * \param offset Offset of the first byte to be fetched. - * \param size Size, in bytes, of the data range. - * \param data Destination for data - * \param bufObj Object to be used. - * - * \sa glBufferGetSubDataARB, dd_function_table::GetBufferSubData. - */ -static void -_mesa_buffer_get_subdata( struct gl_context *ctx, GLenum target, GLintptrARB offset, - GLsizeiptrARB size, GLvoid * data, - struct gl_buffer_object * bufObj ) -{ - (void) ctx; (void) target; - - if (bufObj->Data && ((GLsizeiptrARB) (size + offset) <= bufObj->Size)) { - memcpy( data, (GLubyte *) bufObj->Data + offset, size ); - } -} - - -/** - * Default callback for \c dd_function_tabel::MapBuffer(). - * - * The function parameters will have been already tested for errors. - * - * \param ctx GL context. - * \param target Buffer object target on which to operate. - * \param access Information about how the buffer will be accessed. - * \param bufObj Object to be mapped. - * \return A pointer to the object's internal data store that can be accessed - * by the processor - * - * \sa glMapBufferARB, dd_function_table::MapBuffer - */ -static void * -_mesa_buffer_map( struct gl_context *ctx, GLenum target, GLenum access, - struct gl_buffer_object *bufObj ) -{ - (void) ctx; - (void) target; - (void) access; - /* Just return a direct pointer to the data */ - if (_mesa_bufferobj_mapped(bufObj)) { - /* already mapped! */ - return NULL; - } - bufObj->Pointer = bufObj->Data; - bufObj->Length = bufObj->Size; - bufObj->Offset = 0; - return bufObj->Pointer; -} - - -/** - * Default fallback for \c dd_function_table::MapBufferRange(). - * Called via glMapBufferRange(). - */ -static void * -_mesa_buffer_map_range( struct gl_context *ctx, GLenum target, GLintptr offset, - GLsizeiptr length, GLbitfield access, - struct gl_buffer_object *bufObj ) -{ - (void) ctx; - (void) target; - assert(!_mesa_bufferobj_mapped(bufObj)); - /* Just return a direct pointer to the data */ - bufObj->Pointer = bufObj->Data + offset; - bufObj->Length = length; - bufObj->Offset = offset; - bufObj->AccessFlags = access; - return bufObj->Pointer; -} - - -/** - * Default fallback for \c dd_function_table::FlushMappedBufferRange(). - * Called via glFlushMappedBufferRange(). - */ -static void -_mesa_buffer_flush_mapped_range( struct gl_context *ctx, GLenum target, - GLintptr offset, GLsizeiptr length, - struct gl_buffer_object *obj ) -{ - (void) ctx; - (void) target; - (void) offset; - (void) length; - (void) obj; - /* no-op */ -} - - -/** - * Default callback for \c dd_function_table::MapBuffer(). - * - * The input parameters will have been already tested for errors. - * - * \sa glUnmapBufferARB, dd_function_table::UnmapBuffer - */ -static GLboolean -_mesa_buffer_unmap( struct gl_context *ctx, GLenum target, - struct gl_buffer_object *bufObj ) -{ - (void) ctx; - (void) target; - /* XXX we might assert here that bufObj->Pointer is non-null */ - bufObj->Pointer = NULL; - bufObj->Length = 0; - bufObj->Offset = 0; - bufObj->AccessFlags = 0x0; - return GL_TRUE; -} - - -/** - * Default fallback for \c dd_function_table::CopyBufferSubData(). - * Called via glCopyBuffserSubData(). - */ -static void -_mesa_copy_buffer_subdata(struct gl_context *ctx, - struct gl_buffer_object *src, - struct gl_buffer_object *dst, - GLintptr readOffset, GLintptr writeOffset, - GLsizeiptr size) -{ - GLubyte *srcPtr, *dstPtr; - - /* buffer should not already be mapped */ - assert(!_mesa_bufferobj_mapped(src)); - assert(!_mesa_bufferobj_mapped(dst)); - - srcPtr = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_COPY_READ_BUFFER, - GL_READ_ONLY, src); - dstPtr = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_COPY_WRITE_BUFFER, - GL_WRITE_ONLY, dst); - - if (srcPtr && dstPtr) - memcpy(dstPtr + writeOffset, srcPtr + readOffset, size); - - ctx->Driver.UnmapBuffer(ctx, GL_COPY_READ_BUFFER, src); - ctx->Driver.UnmapBuffer(ctx, GL_COPY_WRITE_BUFFER, dst); -} - - - -/** - * Initialize the state associated with buffer objects - */ -void -_mesa_init_buffer_objects( struct gl_context *ctx ) -{ - memset(&DummyBufferObject, 0, sizeof(DummyBufferObject)); - _glthread_INIT_MUTEX(DummyBufferObject.Mutex); - DummyBufferObject.RefCount = 1000*1000*1000; /* never delete */ - - _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj, - ctx->Shared->NullBufferObj); - _mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj, - ctx->Shared->NullBufferObj); - - _mesa_reference_buffer_object(ctx, &ctx->CopyReadBuffer, - ctx->Shared->NullBufferObj); - _mesa_reference_buffer_object(ctx, &ctx->CopyWriteBuffer, - ctx->Shared->NullBufferObj); -} - - -void -_mesa_free_buffer_objects( struct gl_context *ctx ) -{ - _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj, NULL); - _mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj, NULL); - - _mesa_reference_buffer_object(ctx, &ctx->CopyReadBuffer, NULL); - _mesa_reference_buffer_object(ctx, &ctx->CopyWriteBuffer, NULL); -} - - -/** - * Bind the specified target to buffer for the specified context. - * Called by glBindBuffer() and other functions. - */ -static void -bind_buffer_object(struct gl_context *ctx, GLenum target, GLuint buffer) -{ - struct gl_buffer_object *oldBufObj; - struct gl_buffer_object *newBufObj = NULL; - struct gl_buffer_object **bindTarget = NULL; - - bindTarget = get_buffer_target(ctx, target); - if (!bindTarget) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBindBufferARB(target 0x%x)", target); - return; - } - - /* Get pointer to old buffer object (to be unbound) */ - oldBufObj = *bindTarget; - if (oldBufObj && oldBufObj->Name == buffer) - return; /* rebinding the same buffer object- no change */ - - /* - * Get pointer to new buffer object (newBufObj) - */ - if (buffer == 0) { - /* The spec says there's not a buffer object named 0, but we use - * one internally because it simplifies things. - */ - newBufObj = ctx->Shared->NullBufferObj; - } - else { - /* non-default buffer object */ - newBufObj = _mesa_lookup_bufferobj(ctx, buffer); - if (!newBufObj || newBufObj == &DummyBufferObject) { - /* If this is a new buffer object id, or one which was generated but - * never used before, allocate a buffer object now. - */ - ASSERT(ctx->Driver.NewBufferObject); - newBufObj = ctx->Driver.NewBufferObject(ctx, buffer, target); - if (!newBufObj) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindBufferARB"); - return; - } - _mesa_HashInsert(ctx->Shared->BufferObjects, buffer, newBufObj); - } - } - - /* bind new buffer */ - _mesa_reference_buffer_object(ctx, bindTarget, newBufObj); - - /* Pass BindBuffer call to device driver */ - if (ctx->Driver.BindBuffer) - ctx->Driver.BindBuffer( ctx, target, newBufObj ); -} - - -/** - * Update the default buffer objects in the given context to reference those - * specified in the shared state and release those referencing the old - * shared state. - */ -void -_mesa_update_default_objects_buffer_objects(struct gl_context *ctx) -{ - /* Bind the NullBufferObj to remove references to those - * in the shared context hash table. - */ - bind_buffer_object( ctx, GL_ARRAY_BUFFER_ARB, 0); - bind_buffer_object( ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, 0); - bind_buffer_object( ctx, GL_PIXEL_PACK_BUFFER_ARB, 0); - bind_buffer_object( ctx, GL_PIXEL_UNPACK_BUFFER_ARB, 0); -} - - - -/** - * Return the gl_buffer_object for the given ID. - * Always return NULL for ID 0. - */ -struct gl_buffer_object * -_mesa_lookup_bufferobj(struct gl_context *ctx, GLuint buffer) -{ - if (buffer == 0) - return NULL; - else - return (struct gl_buffer_object *) - _mesa_HashLookup(ctx->Shared->BufferObjects, buffer); -} - - -/** - * If *ptr points to obj, set ptr = the Null/default buffer object. - * This is a helper for buffer object deletion. - * The GL spec says that deleting a buffer object causes it to get - * unbound from all arrays in the current context. - */ -static void -unbind(struct gl_context *ctx, - struct gl_buffer_object **ptr, - struct gl_buffer_object *obj) -{ - if (*ptr == obj) { - _mesa_reference_buffer_object(ctx, ptr, ctx->Shared->NullBufferObj); - } -} - - -/** - * Plug default/fallback buffer object functions into the device - * driver hooks. - */ -void -_mesa_init_buffer_object_functions(struct dd_function_table *driver) -{ - /* GL_ARB_vertex/pixel_buffer_object */ - driver->NewBufferObject = _mesa_new_buffer_object; - driver->DeleteBuffer = _mesa_delete_buffer_object; - driver->BindBuffer = NULL; - driver->BufferData = _mesa_buffer_data; - driver->BufferSubData = _mesa_buffer_subdata; - driver->GetBufferSubData = _mesa_buffer_get_subdata; - driver->MapBuffer = _mesa_buffer_map; - driver->UnmapBuffer = _mesa_buffer_unmap; - - /* GL_ARB_map_buffer_range */ - driver->MapBufferRange = _mesa_buffer_map_range; - driver->FlushMappedBufferRange = _mesa_buffer_flush_mapped_range; - - /* GL_ARB_copy_buffer */ - driver->CopyBufferSubData = _mesa_copy_buffer_subdata; -} - - - -/**********************************************************************/ -/* API Functions */ -/**********************************************************************/ - -void GLAPIENTRY -_mesa_BindBufferARB(GLenum target, GLuint buffer) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glBindBuffer(%s, %u)\n", - _mesa_lookup_enum_by_nr(target), buffer); - - bind_buffer_object(ctx, target, buffer); -} - - -/** - * Delete a set of buffer objects. - * - * \param n Number of buffer objects to delete. - * \param ids Array of \c n buffer object IDs. - */ -void GLAPIENTRY -_mesa_DeleteBuffersARB(GLsizei n, const GLuint *ids) -{ - GET_CURRENT_CONTEXT(ctx); - GLsizei i; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (n < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glDeleteBuffersARB(n)"); - return; - } - - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - - for (i = 0; i < n; i++) { - struct gl_buffer_object *bufObj = _mesa_lookup_bufferobj(ctx, ids[i]); - if (bufObj) { - struct gl_array_object *arrayObj = ctx->Array.ArrayObj; - GLuint j; - - ASSERT(bufObj->Name == ids[i] || bufObj == &DummyBufferObject); - - if (_mesa_bufferobj_mapped(bufObj)) { - /* if mapped, unmap it now */ - ctx->Driver.UnmapBuffer(ctx, 0, bufObj); - bufObj->AccessFlags = DEFAULT_ACCESS; - bufObj->Pointer = NULL; - } - - /* unbind any vertex pointers bound to this buffer */ - unbind(ctx, &arrayObj->Vertex.BufferObj, bufObj); - unbind(ctx, &arrayObj->Weight.BufferObj, bufObj); - unbind(ctx, &arrayObj->Normal.BufferObj, bufObj); - unbind(ctx, &arrayObj->Color.BufferObj, bufObj); - unbind(ctx, &arrayObj->SecondaryColor.BufferObj, bufObj); - unbind(ctx, &arrayObj->FogCoord.BufferObj, bufObj); - unbind(ctx, &arrayObj->Index.BufferObj, bufObj); - unbind(ctx, &arrayObj->EdgeFlag.BufferObj, bufObj); - for (j = 0; j < Elements(arrayObj->TexCoord); j++) { - unbind(ctx, &arrayObj->TexCoord[j].BufferObj, bufObj); - } - for (j = 0; j < Elements(arrayObj->VertexAttrib); j++) { - unbind(ctx, &arrayObj->VertexAttrib[j].BufferObj, bufObj); - } - - if (ctx->Array.ArrayBufferObj == bufObj) { - _mesa_BindBufferARB( GL_ARRAY_BUFFER_ARB, 0 ); - } - if (ctx->Array.ElementArrayBufferObj == bufObj) { - _mesa_BindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, 0 ); - } - - /* unbind any pixel pack/unpack pointers bound to this buffer */ - if (ctx->Pack.BufferObj == bufObj) { - _mesa_BindBufferARB( GL_PIXEL_PACK_BUFFER_EXT, 0 ); - } - if (ctx->Unpack.BufferObj == bufObj) { - _mesa_BindBufferARB( GL_PIXEL_UNPACK_BUFFER_EXT, 0 ); - } - - /* The ID is immediately freed for re-use */ - _mesa_HashRemove(ctx->Shared->BufferObjects, ids[i]); - _mesa_reference_buffer_object(ctx, &bufObj, NULL); - } - } - - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); -} - - -/** - * Generate a set of unique buffer object IDs and store them in \c buffer. - * - * \param n Number of IDs to generate. - * \param buffer Array of \c n locations to store the IDs. - */ -void GLAPIENTRY -_mesa_GenBuffersARB(GLsizei n, GLuint *buffer) -{ - GET_CURRENT_CONTEXT(ctx); - GLuint first; - GLint i; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glGenBuffers(%d)\n", n); - - if (n < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGenBuffersARB"); - return; - } - - if (!buffer) { - return; - } - - /* - * This must be atomic (generation and allocation of buffer object IDs) - */ - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - - first = _mesa_HashFindFreeKeyBlock(ctx->Shared->BufferObjects, n); - - /* Insert the ID and pointer to dummy buffer object into hash table */ - for (i = 0; i < n; i++) { - _mesa_HashInsert(ctx->Shared->BufferObjects, first + i, - &DummyBufferObject); - buffer[i] = first + i; - } - - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); -} - - -/** - * Determine if ID is the name of a buffer object. - * - * \param id ID of the potential buffer object. - * \return \c GL_TRUE if \c id is the name of a buffer object, - * \c GL_FALSE otherwise. - */ -GLboolean GLAPIENTRY -_mesa_IsBufferARB(GLuint id) -{ - struct gl_buffer_object *bufObj; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); - - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - bufObj = _mesa_lookup_bufferobj(ctx, id); - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - - return bufObj && bufObj != &DummyBufferObject; -} - - -void GLAPIENTRY -_mesa_BufferDataARB(GLenum target, GLsizeiptrARB size, - const GLvoid * data, GLenum usage) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_buffer_object *bufObj; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glBufferData(%s, %ld, %p, %s)\n", - _mesa_lookup_enum_by_nr(target), - (long int) size, data, - _mesa_lookup_enum_by_nr(usage)); - - if (size < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glBufferDataARB(size < 0)"); - return; - } - - switch (usage) { - case GL_STREAM_DRAW_ARB: - case GL_STREAM_READ_ARB: - case GL_STREAM_COPY_ARB: - case GL_STATIC_DRAW_ARB: - case GL_STATIC_READ_ARB: - case GL_STATIC_COPY_ARB: - case GL_DYNAMIC_DRAW_ARB: - case GL_DYNAMIC_READ_ARB: - case GL_DYNAMIC_COPY_ARB: - /* OK */ - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glBufferDataARB(usage)"); - return; - } - - bufObj = get_buffer(ctx, target); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBufferDataARB(target)" ); - return; - } - if (!_mesa_is_bufferobj(bufObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glBufferDataARB(buffer 0)" ); - return; - } - - if (_mesa_bufferobj_mapped(bufObj)) { - /* Unmap the existing buffer. We'll replace it now. Not an error. */ - ctx->Driver.UnmapBuffer(ctx, target, bufObj); - bufObj->AccessFlags = DEFAULT_ACCESS; - ASSERT(bufObj->Pointer == NULL); - } - - FLUSH_VERTICES(ctx, _NEW_BUFFER_OBJECT); - - bufObj->Written = GL_TRUE; - -#ifdef VBO_DEBUG - printf("glBufferDataARB(%u, sz %ld, from %p, usage 0x%x)\n", - bufObj->Name, size, data, usage); -#endif - -#ifdef BOUNDS_CHECK - size += 100; -#endif - - ASSERT(ctx->Driver.BufferData); - if (!ctx->Driver.BufferData( ctx, target, size, data, usage, bufObj )) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBufferDataARB()"); - } -} - - -void GLAPIENTRY -_mesa_BufferSubDataARB(GLenum target, GLintptrARB offset, - GLsizeiptrARB size, const GLvoid * data) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_buffer_object *bufObj; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - bufObj = buffer_object_subdata_range_good( ctx, target, offset, size, - "glBufferSubDataARB" ); - if (!bufObj) { - /* error already recorded */ - return; - } - - if (size == 0) - return; - - bufObj->Written = GL_TRUE; - - ASSERT(ctx->Driver.BufferSubData); - ctx->Driver.BufferSubData( ctx, target, offset, size, data, bufObj ); -} - - -void GLAPIENTRY -_mesa_GetBufferSubDataARB(GLenum target, GLintptrARB offset, - GLsizeiptrARB size, void * data) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_buffer_object *bufObj; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - bufObj = buffer_object_subdata_range_good( ctx, target, offset, size, - "glGetBufferSubDataARB" ); - if (!bufObj) { - /* error already recorded */ - return; - } - - ASSERT(ctx->Driver.GetBufferSubData); - ctx->Driver.GetBufferSubData( ctx, target, offset, size, data, bufObj ); -} - - -void * GLAPIENTRY -_mesa_MapBufferARB(GLenum target, GLenum access) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_buffer_object * bufObj; - GLbitfield accessFlags; - void *map; - - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL); - - switch (access) { - case GL_READ_ONLY_ARB: - accessFlags = GL_MAP_READ_BIT; - break; - case GL_WRITE_ONLY_ARB: - accessFlags = GL_MAP_WRITE_BIT; - break; - case GL_READ_WRITE_ARB: - accessFlags = GL_MAP_READ_BIT | GL_MAP_WRITE_BIT; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glMapBufferARB(access)"); - return NULL; - } - - bufObj = get_buffer(ctx, target); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_ENUM, "glMapBufferARB(target)" ); - return NULL; - } - if (!_mesa_is_bufferobj(bufObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glMapBufferARB(buffer 0)" ); - return NULL; - } - if (_mesa_bufferobj_mapped(bufObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glMapBufferARB(already mapped)"); - return NULL; - } - - ASSERT(ctx->Driver.MapBuffer); - map = ctx->Driver.MapBuffer( ctx, target, access, bufObj ); - if (!map) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMapBufferARB(map failed)"); - return NULL; - } - else { - /* The driver callback should have set these fields. - * This is important because other modules (like VBO) might call - * the driver function directly. - */ - ASSERT(bufObj->Pointer == map); - ASSERT(bufObj->Length == bufObj->Size); - ASSERT(bufObj->Offset == 0); - bufObj->AccessFlags = accessFlags; - } - - if (access == GL_WRITE_ONLY_ARB || access == GL_READ_WRITE_ARB) - bufObj->Written = GL_TRUE; - -#ifdef VBO_DEBUG - printf("glMapBufferARB(%u, sz %ld, access 0x%x)\n", - bufObj->Name, bufObj->Size, access); - if (access == GL_WRITE_ONLY_ARB) { - GLuint i; - GLubyte *b = (GLubyte *) bufObj->Pointer; - for (i = 0; i < bufObj->Size; i++) - b[i] = i & 0xff; - } -#endif - -#ifdef BOUNDS_CHECK - { - GLubyte *buf = (GLubyte *) bufObj->Pointer; - GLuint i; - /* buffer is 100 bytes larger than requested, fill with magic value */ - for (i = 0; i < 100; i++) { - buf[bufObj->Size - i - 1] = 123; - } - } -#endif - - return bufObj->Pointer; -} - - -GLboolean GLAPIENTRY -_mesa_UnmapBufferARB(GLenum target) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_buffer_object *bufObj; - GLboolean status = GL_TRUE; - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); - - bufObj = get_buffer(ctx, target); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_ENUM, "glUnmapBufferARB(target)" ); - return GL_FALSE; - } - if (!_mesa_is_bufferobj(bufObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glUnmapBufferARB" ); - return GL_FALSE; - } - if (!_mesa_bufferobj_mapped(bufObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glUnmapBufferARB"); - return GL_FALSE; - } - -#ifdef BOUNDS_CHECK - if (bufObj->Access != GL_READ_ONLY_ARB) { - GLubyte *buf = (GLubyte *) bufObj->Pointer; - GLuint i; - /* check that last 100 bytes are still = magic value */ - for (i = 0; i < 100; i++) { - GLuint pos = bufObj->Size - i - 1; - if (buf[pos] != 123) { - _mesa_warning(ctx, "Out of bounds buffer object write detected" - " at position %d (value = %u)\n", - pos, buf[pos]); - } - } - } -#endif - -#ifdef VBO_DEBUG - if (bufObj->AccessFlags & GL_MAP_WRITE_BIT) { - GLuint i, unchanged = 0; - GLubyte *b = (GLubyte *) bufObj->Pointer; - GLint pos = -1; - /* check which bytes changed */ - for (i = 0; i < bufObj->Size - 1; i++) { - if (b[i] == (i & 0xff) && b[i+1] == ((i+1) & 0xff)) { - unchanged++; - if (pos == -1) - pos = i; - } - } - if (unchanged) { - printf("glUnmapBufferARB(%u): %u of %ld unchanged, starting at %d\n", - bufObj->Name, unchanged, bufObj->Size, pos); - } - } -#endif - - status = ctx->Driver.UnmapBuffer( ctx, target, bufObj ); - bufObj->AccessFlags = DEFAULT_ACCESS; - ASSERT(bufObj->Pointer == NULL); - ASSERT(bufObj->Offset == 0); - ASSERT(bufObj->Length == 0); - - return status; -} - - -void GLAPIENTRY -_mesa_GetBufferParameterivARB(GLenum target, GLenum pname, GLint *params) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_buffer_object *bufObj; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - bufObj = get_buffer(ctx, target); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameterivARB(target)" ); - return; - } - if (!_mesa_is_bufferobj(bufObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetBufferParameterivARB" ); - return; - } - - switch (pname) { - case GL_BUFFER_SIZE_ARB: - *params = (GLint) bufObj->Size; - return; - case GL_BUFFER_USAGE_ARB: - *params = bufObj->Usage; - return; - case GL_BUFFER_ACCESS_ARB: - *params = simplified_access_mode(bufObj->AccessFlags); - return; - case GL_BUFFER_MAPPED_ARB: - *params = _mesa_bufferobj_mapped(bufObj); - return; - case GL_BUFFER_ACCESS_FLAGS: - if (ctx->VersionMajor < 3) - goto invalid_pname; - *params = bufObj->AccessFlags; - return; - case GL_BUFFER_MAP_OFFSET: - if (ctx->VersionMajor < 3) - goto invalid_pname; - *params = (GLint) bufObj->Offset; - return; - case GL_BUFFER_MAP_LENGTH: - if (ctx->VersionMajor < 3) - goto invalid_pname; - *params = (GLint) bufObj->Length; - return; - default: - ; /* fall-through */ - } - -invalid_pname: - _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameterivARB(pname=%s)", - _mesa_lookup_enum_by_nr(pname)); -} - - -/** - * New in GL 3.2 - * This is pretty much a duplicate of GetBufferParameteriv() but the - * GL_BUFFER_SIZE_ARB attribute will be 64-bits on a 64-bit system. - */ -void GLAPIENTRY -_mesa_GetBufferParameteri64v(GLenum target, GLenum pname, GLint64 *params) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_buffer_object *bufObj; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - bufObj = get_buffer(ctx, target); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameteri64v(target)" ); - return; - } - if (!_mesa_is_bufferobj(bufObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetBufferParameteri64v" ); - return; - } - - switch (pname) { - case GL_BUFFER_SIZE_ARB: - *params = bufObj->Size; - return; - case GL_BUFFER_USAGE_ARB: - *params = bufObj->Usage; - return; - case GL_BUFFER_ACCESS_ARB: - *params = simplified_access_mode(bufObj->AccessFlags); - return; - case GL_BUFFER_ACCESS_FLAGS: - if (ctx->VersionMajor < 3) - goto invalid_pname; - *params = bufObj->AccessFlags; - return; - case GL_BUFFER_MAPPED_ARB: - *params = _mesa_bufferobj_mapped(bufObj); - return; - case GL_BUFFER_MAP_OFFSET: - if (ctx->VersionMajor < 3) - goto invalid_pname; - *params = bufObj->Offset; - return; - case GL_BUFFER_MAP_LENGTH: - if (ctx->VersionMajor < 3) - goto invalid_pname; - *params = bufObj->Length; - return; - default: - ; /* fall-through */ - } - -invalid_pname: - _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameteri64v(pname=%s)", - _mesa_lookup_enum_by_nr(pname)); -} - - -void GLAPIENTRY -_mesa_GetBufferPointervARB(GLenum target, GLenum pname, GLvoid **params) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_buffer_object * bufObj; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (pname != GL_BUFFER_MAP_POINTER_ARB) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferPointervARB(pname)"); - return; - } - - bufObj = get_buffer(ctx, target); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferPointervARB(target)" ); - return; - } - if (!_mesa_is_bufferobj(bufObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetBufferPointervARB" ); - return; - } - - *params = bufObj->Pointer; -} - - -void GLAPIENTRY -_mesa_CopyBufferSubData(GLenum readTarget, GLenum writeTarget, - GLintptr readOffset, GLintptr writeOffset, - GLsizeiptr size) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_buffer_object *src, *dst; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - src = get_buffer(ctx, readTarget); - if (!src || !_mesa_is_bufferobj(src)) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glCopyBuffserSubData(readTarget = 0x%x)", readTarget); - return; - } - - dst = get_buffer(ctx, writeTarget); - if (!dst || !_mesa_is_bufferobj(dst)) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glCopyBuffserSubData(writeTarget = 0x%x)", writeTarget); - return; - } - - if (_mesa_bufferobj_mapped(src)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glCopyBuffserSubData(readBuffer is mapped)"); - return; - } - - if (_mesa_bufferobj_mapped(dst)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glCopyBuffserSubData(writeBuffer is mapped)"); - return; - } - - if (readOffset < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyBuffserSubData(readOffset = %d)", (int) readOffset); - return; - } - - if (writeOffset < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyBuffserSubData(writeOffset = %d)", (int) writeOffset); - return; - } - - if (readOffset + size > src->Size) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyBuffserSubData(readOffset + size = %d)", - (int) (readOffset + size)); - return; - } - - if (writeOffset + size > dst->Size) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyBuffserSubData(writeOffset + size = %d)", - (int) (writeOffset + size)); - return; - } - - if (src == dst) { - if (readOffset + size <= writeOffset) { - /* OK */ - } - else if (writeOffset + size <= readOffset) { - /* OK */ - } - else { - /* overlapping src/dst is illegal */ - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyBuffserSubData(overlapping src/dst)"); - return; - } - } - - ctx->Driver.CopyBufferSubData(ctx, src, dst, readOffset, writeOffset, size); -} - - -/** - * See GL_ARB_map_buffer_range spec - */ -void * GLAPIENTRY -_mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length, - GLbitfield access) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_buffer_object *bufObj; - void *map; - - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL); - - if (!ctx->Extensions.ARB_map_buffer_range) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glMapBufferRange(extension not supported)"); - return NULL; - } - - if (offset < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glMapBufferRange(offset = %ld)", (long)offset); - return NULL; - } - - if (length < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glMapBufferRange(length = %ld)", (long)length); - return NULL; - } - - if ((access & (GL_MAP_READ_BIT | GL_MAP_WRITE_BIT)) == 0) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glMapBufferRange(access indicates neither read or write)"); - return NULL; - } - - if (access & GL_MAP_READ_BIT) { - if ((access & GL_MAP_INVALIDATE_RANGE_BIT) || - (access & GL_MAP_INVALIDATE_BUFFER_BIT) || - (access & GL_MAP_UNSYNCHRONIZED_BIT)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glMapBufferRange(invalid access flags)"); - return NULL; - } - } - - if ((access & GL_MAP_FLUSH_EXPLICIT_BIT) && - ((access & GL_MAP_WRITE_BIT) == 0)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glMapBufferRange(invalid access flags)"); - return NULL; - } - - bufObj = get_buffer(ctx, target); - if (!bufObj || !_mesa_is_bufferobj(bufObj)) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glMapBufferRange(target = 0x%x)", target); - return NULL; - } - - if (offset + length > bufObj->Size) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glMapBufferRange(offset + length > size)"); - return NULL; - } - - if (_mesa_bufferobj_mapped(bufObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glMapBufferRange(buffer already mapped)"); - return NULL; - } - - ASSERT(ctx->Driver.MapBufferRange); - map = ctx->Driver.MapBufferRange(ctx, target, offset, length, - access, bufObj); - if (!map) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMapBufferARB(map failed)"); - } - else { - /* The driver callback should have set all these fields. - * This is important because other modules (like VBO) might call - * the driver function directly. - */ - ASSERT(bufObj->Pointer == map); - ASSERT(bufObj->Length == length); - ASSERT(bufObj->Offset == offset); - ASSERT(bufObj->AccessFlags == access); - } - - return map; -} - - -/** - * See GL_ARB_map_buffer_range spec - */ -void GLAPIENTRY -_mesa_FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_buffer_object *bufObj; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (!ctx->Extensions.ARB_map_buffer_range) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glMapBufferRange(extension not supported)"); - return; - } - - if (offset < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glMapBufferRange(offset = %ld)", (long)offset); - return; - } - - if (length < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glMapBufferRange(length = %ld)", (long)length); - return; - } - - bufObj = get_buffer(ctx, target); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glMapBufferRange(target = 0x%x)", target); - return; - } - - if (!_mesa_is_bufferobj(bufObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glMapBufferRange(current buffer is 0)"); - return; - } - - if (!_mesa_bufferobj_mapped(bufObj)) { - /* buffer is not mapped */ - _mesa_error(ctx, GL_INVALID_OPERATION, - "glMapBufferRange(buffer is not mapped)"); - return; - } - - if ((bufObj->AccessFlags & GL_MAP_FLUSH_EXPLICIT_BIT) == 0) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glMapBufferRange(GL_MAP_FLUSH_EXPLICIT_BIT not set)"); - return; - } - - if (offset + length > bufObj->Length) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glMapBufferRange(offset %ld + length %ld > mapped length %ld)", - (long)offset, (long)length, (long)bufObj->Length); - return; - } - - ASSERT(bufObj->AccessFlags & GL_MAP_WRITE_BIT); - - if (ctx->Driver.FlushMappedBufferRange) - ctx->Driver.FlushMappedBufferRange(ctx, target, offset, length, bufObj); -} - - -#if FEATURE_APPLE_object_purgeable -static GLenum -_mesa_BufferObjectPurgeable(struct gl_context *ctx, GLuint name, GLenum option) -{ - struct gl_buffer_object *bufObj; - GLenum retval; - - bufObj = _mesa_lookup_bufferobj(ctx, name); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glObjectPurgeable(name = 0x%x)", name); - return 0; - } - if (!_mesa_is_bufferobj(bufObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glObjectPurgeable(buffer 0)" ); - return 0; - } - - if (bufObj->Purgeable) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glObjectPurgeable(name = 0x%x) is already purgeable", name); - return GL_VOLATILE_APPLE; - } - - bufObj->Purgeable = GL_TRUE; - - retval = GL_VOLATILE_APPLE; - if (ctx->Driver.BufferObjectPurgeable) - retval = ctx->Driver.BufferObjectPurgeable(ctx, bufObj, option); - - return retval; -} - - -static GLenum -_mesa_RenderObjectPurgeable(struct gl_context *ctx, GLuint name, GLenum option) -{ - struct gl_renderbuffer *bufObj; - GLenum retval; - - bufObj = _mesa_lookup_renderbuffer(ctx, name); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glObjectUnpurgeable(name = 0x%x)", name); - return 0; - } - - if (bufObj->Purgeable) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glObjectPurgeable(name = 0x%x) is already purgeable", name); - return GL_VOLATILE_APPLE; - } - - bufObj->Purgeable = GL_TRUE; - - retval = GL_VOLATILE_APPLE; - if (ctx->Driver.RenderObjectPurgeable) - retval = ctx->Driver.RenderObjectPurgeable(ctx, bufObj, option); - - return retval; -} - - -static GLenum -_mesa_TextureObjectPurgeable(struct gl_context *ctx, GLuint name, GLenum option) -{ - struct gl_texture_object *bufObj; - GLenum retval; - - bufObj = _mesa_lookup_texture(ctx, name); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glObjectPurgeable(name = 0x%x)", name); - return 0; - } - - if (bufObj->Purgeable) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glObjectPurgeable(name = 0x%x) is already purgeable", name); - return GL_VOLATILE_APPLE; - } - - bufObj->Purgeable = GL_TRUE; - - retval = GL_VOLATILE_APPLE; - if (ctx->Driver.TextureObjectPurgeable) - retval = ctx->Driver.TextureObjectPurgeable(ctx, bufObj, option); - - return retval; -} - - -GLenum GLAPIENTRY -_mesa_ObjectPurgeableAPPLE(GLenum objectType, GLuint name, GLenum option) -{ - GLenum retval; - - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); - - if (name == 0) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glObjectPurgeable(name = 0x%x)", name); - return 0; - } - - switch (option) { - case GL_VOLATILE_APPLE: - case GL_RELEASED_APPLE: - /* legal */ - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glObjectPurgeable(name = 0x%x) invalid option: %d", - name, option); - return 0; - } - - switch (objectType) { - case GL_TEXTURE: - retval = _mesa_TextureObjectPurgeable (ctx, name, option); - break; - case GL_RENDERBUFFER_EXT: - retval = _mesa_RenderObjectPurgeable (ctx, name, option); - break; - case GL_BUFFER_OBJECT_APPLE: - retval = _mesa_BufferObjectPurgeable (ctx, name, option); - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glObjectPurgeable(name = 0x%x) invalid type: %d", - name, objectType); - return 0; - } - - /* In strict conformance to the spec, we must only return VOLATILE when - * when passed the VOLATILE option. Madness. - * - * XXX First fix the spec, then fix me. - */ - return option == GL_VOLATILE_APPLE ? GL_VOLATILE_APPLE : retval; -} - - -static GLenum -_mesa_BufferObjectUnpurgeable(struct gl_context *ctx, GLuint name, GLenum option) -{ - struct gl_buffer_object *bufObj; - GLenum retval; - - bufObj = _mesa_lookup_bufferobj(ctx, name); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glObjectUnpurgeable(name = 0x%x)", name); - return 0; - } - - if (! bufObj->Purgeable) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glObjectUnpurgeable(name = 0x%x) object is " - " already \"unpurged\"", name); - return 0; - } - - bufObj->Purgeable = GL_FALSE; - - retval = option; - if (ctx->Driver.BufferObjectUnpurgeable) - retval = ctx->Driver.BufferObjectUnpurgeable(ctx, bufObj, option); - - return retval; -} - - -static GLenum -_mesa_RenderObjectUnpurgeable(struct gl_context *ctx, GLuint name, GLenum option) -{ - struct gl_renderbuffer *bufObj; - GLenum retval; - - bufObj = _mesa_lookup_renderbuffer(ctx, name); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glObjectUnpurgeable(name = 0x%x)", name); - return 0; - } - - if (! bufObj->Purgeable) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glObjectUnpurgeable(name = 0x%x) object is " - " already \"unpurged\"", name); - return 0; - } - - bufObj->Purgeable = GL_FALSE; - - retval = option; - if (ctx->Driver.RenderObjectUnpurgeable) - retval = ctx->Driver.RenderObjectUnpurgeable(ctx, bufObj, option); - - return retval; -} - - -static GLenum -_mesa_TextureObjectUnpurgeable(struct gl_context *ctx, GLuint name, GLenum option) -{ - struct gl_texture_object *bufObj; - GLenum retval; - - bufObj = _mesa_lookup_texture(ctx, name); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glObjectUnpurgeable(name = 0x%x)", name); - return 0; - } - - if (! bufObj->Purgeable) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glObjectUnpurgeable(name = 0x%x) object is" - " already \"unpurged\"", name); - return 0; - } - - bufObj->Purgeable = GL_FALSE; - - retval = option; - if (ctx->Driver.TextureObjectUnpurgeable) - retval = ctx->Driver.TextureObjectUnpurgeable(ctx, bufObj, option); - - return retval; -} - - -GLenum GLAPIENTRY -_mesa_ObjectUnpurgeableAPPLE(GLenum objectType, GLuint name, GLenum option) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); - - if (name == 0) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glObjectUnpurgeable(name = 0x%x)", name); - return 0; - } - - switch (option) { - case GL_RETAINED_APPLE: - case GL_UNDEFINED_APPLE: - /* legal */ - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glObjectUnpurgeable(name = 0x%x) invalid option: %d", - name, option); - return 0; - } - - switch (objectType) { - case GL_BUFFER_OBJECT_APPLE: - return _mesa_BufferObjectUnpurgeable(ctx, name, option); - case GL_TEXTURE: - return _mesa_TextureObjectUnpurgeable(ctx, name, option); - case GL_RENDERBUFFER_EXT: - return _mesa_RenderObjectUnpurgeable(ctx, name, option); - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glObjectUnpurgeable(name = 0x%x) invalid type: %d", - name, objectType); - return 0; - } -} - - -static void -_mesa_GetBufferObjectParameterivAPPLE(struct gl_context *ctx, GLuint name, - GLenum pname, GLint* params) -{ - struct gl_buffer_object *bufObj; - - bufObj = _mesa_lookup_bufferobj(ctx, name); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glGetObjectParameteriv(name = 0x%x) invalid object", name); - return; - } - - switch (pname) { - case GL_PURGEABLE_APPLE: - *params = bufObj->Purgeable; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetObjectParameteriv(name = 0x%x) invalid enum: %d", - name, pname); - break; - } -} - - -static void -_mesa_GetRenderObjectParameterivAPPLE(struct gl_context *ctx, GLuint name, - GLenum pname, GLint* params) -{ - struct gl_renderbuffer *bufObj; - - bufObj = _mesa_lookup_renderbuffer(ctx, name); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glObjectUnpurgeable(name = 0x%x)", name); - return; - } - - switch (pname) { - case GL_PURGEABLE_APPLE: - *params = bufObj->Purgeable; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetObjectParameteriv(name = 0x%x) invalid enum: %d", - name, pname); - break; - } -} - - -static void -_mesa_GetTextureObjectParameterivAPPLE(struct gl_context *ctx, GLuint name, - GLenum pname, GLint* params) -{ - struct gl_texture_object *bufObj; - - bufObj = _mesa_lookup_texture(ctx, name); - if (!bufObj) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glObjectUnpurgeable(name = 0x%x)", name); - return; - } - - switch (pname) { - case GL_PURGEABLE_APPLE: - *params = bufObj->Purgeable; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetObjectParameteriv(name = 0x%x) invalid enum: %d", - name, pname); - break; - } -} - - -void GLAPIENTRY -_mesa_GetObjectParameterivAPPLE(GLenum objectType, GLuint name, GLenum pname, - GLint* params) -{ - GET_CURRENT_CONTEXT(ctx); - - if (name == 0) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glGetObjectParameteriv(name = 0x%x)", name); - return; - } - - switch (objectType) { - case GL_TEXTURE: - _mesa_GetTextureObjectParameterivAPPLE (ctx, name, pname, params); - break; - case GL_BUFFER_OBJECT_APPLE: - _mesa_GetBufferObjectParameterivAPPLE (ctx, name, pname, params); - break; - case GL_RENDERBUFFER_EXT: - _mesa_GetRenderObjectParameterivAPPLE (ctx, name, pname, params); - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetObjectParameteriv(name = 0x%x) invalid type: %d", - name, objectType); - } -} - -#endif /* FEATURE_APPLE_object_purgeable */ +/* + * Mesa 3-D graphics library + * Version: 7.6 + * + * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +/** + * \file bufferobj.c + * \brief Functions for the GL_ARB_vertex/pixel_buffer_object extensions. + * \author Brian Paul, Ian Romanick + */ + + +#include "glheader.h" +#include "enums.h" +#include "hash.h" +#include "imports.h" +#include "image.h" +#include "context.h" +#include "bufferobj.h" +#include "fbobject.h" +#include "mfeatures.h" +#include "mtypes.h" +#include "texobj.h" + + +/* Debug flags */ +/*#define VBO_DEBUG*/ +/*#define BOUNDS_CHECK*/ + + +#if FEATURE_OES_mapbuffer +#define DEFAULT_ACCESS GL_MAP_WRITE_BIT +#else +#define DEFAULT_ACCESS (GL_MAP_READ_BIT | GL_MAP_WRITE_BIT) +#endif + + +/** + * Used as a placeholder for buffer objects between glGenBuffers() and + * glBindBuffer() so that glIsBuffer() can work correctly. + */ +static struct gl_buffer_object DummyBufferObject; + + +/** + * Return pointer to address of a buffer object target. + * \param ctx the GL context + * \param target the buffer object target to be retrieved. + * \return pointer to pointer to the buffer object bound to \c target in the + * specified context or \c NULL if \c target is invalid. + */ +static INLINE struct gl_buffer_object ** +get_buffer_target(struct gl_context *ctx, GLenum target) +{ + switch (target) { + case GL_ARRAY_BUFFER_ARB: + return &ctx->Array.ArrayBufferObj; + case GL_ELEMENT_ARRAY_BUFFER_ARB: + return &ctx->Array.ElementArrayBufferObj; + case GL_PIXEL_PACK_BUFFER_EXT: + return &ctx->Pack.BufferObj; + case GL_PIXEL_UNPACK_BUFFER_EXT: + return &ctx->Unpack.BufferObj; + case GL_COPY_READ_BUFFER: + return &ctx->CopyReadBuffer; + case GL_COPY_WRITE_BUFFER: + return &ctx->CopyWriteBuffer; +#if FEATURE_EXT_transform_feedback + case GL_TRANSFORM_FEEDBACK_BUFFER: + if (ctx->Extensions.EXT_transform_feedback) { + return &ctx->TransformFeedback.CurrentBuffer; + } + break; +#endif + default: + return NULL; + } + return NULL; +} + + +/** + * Get the buffer object bound to the specified target in a GL context. + * \param ctx the GL context + * \param target the buffer object target to be retrieved. + * \return pointer to the buffer object bound to \c target in the + * specified context or \c NULL if \c target is invalid. + */ +static INLINE struct gl_buffer_object * +get_buffer(struct gl_context *ctx, GLenum target) +{ + struct gl_buffer_object **bufObj = get_buffer_target(ctx, target); + if (bufObj) + return *bufObj; + return NULL; +} + + +/** + * Convert a GLbitfield describing the mapped buffer access flags + * into one of GL_READ_WRITE, GL_READ_ONLY, or GL_WRITE_ONLY. + */ +static GLenum +simplified_access_mode(GLbitfield access) +{ + const GLbitfield rwFlags = GL_MAP_READ_BIT | GL_MAP_WRITE_BIT; + if ((access & rwFlags) == rwFlags) + return GL_READ_WRITE; + if ((access & GL_MAP_READ_BIT) == GL_MAP_READ_BIT) + return GL_READ_ONLY; + if ((access & GL_MAP_WRITE_BIT) == GL_MAP_WRITE_BIT) + return GL_WRITE_ONLY; + return GL_READ_WRITE; /* this should never happen, but no big deal */ +} + + +/** + * Tests the subdata range parameters and sets the GL error code for + * \c glBufferSubDataARB and \c glGetBufferSubDataARB. + * + * \param ctx GL context. + * \param target Buffer object target on which to operate. + * \param offset Offset of the first byte of the subdata range. + * \param size Size, in bytes, of the subdata range. + * \param caller Name of calling function for recording errors. + * \return A pointer to the buffer object bound to \c target in the + * specified context or \c NULL if any of the parameter or state + * conditions for \c glBufferSubDataARB or \c glGetBufferSubDataARB + * are invalid. + * + * \sa glBufferSubDataARB, glGetBufferSubDataARB + */ +static struct gl_buffer_object * +buffer_object_subdata_range_good( struct gl_context * ctx, GLenum target, + GLintptrARB offset, GLsizeiptrARB size, + const char *caller ) +{ + struct gl_buffer_object *bufObj; + + if (size < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "%s(size < 0)", caller); + return NULL; + } + + if (offset < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "%s(offset < 0)", caller); + return NULL; + } + + bufObj = get_buffer(ctx, target); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", caller); + return NULL; + } + if (!_mesa_is_bufferobj(bufObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller); + return NULL; + } + if (offset + size > bufObj->Size) { + _mesa_error(ctx, GL_INVALID_VALUE, + "%s(size + offset > buffer size)", caller); + return NULL; + } + if (_mesa_bufferobj_mapped(bufObj)) { + /* Buffer is currently mapped */ + _mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller); + return NULL; + } + + return bufObj; +} + + +/** + * Allocate and initialize a new buffer object. + * + * Default callback for the \c dd_function_table::NewBufferObject() hook. + */ +static struct gl_buffer_object * +_mesa_new_buffer_object( struct gl_context *ctx, GLuint name, GLenum target ) +{ + struct gl_buffer_object *obj; + + (void) ctx; + + obj = MALLOC_STRUCT(gl_buffer_object); + _mesa_initialize_buffer_object(obj, name, target); + return obj; +} + + +/** + * Delete a buffer object. + * + * Default callback for the \c dd_function_table::DeleteBuffer() hook. + */ +static void +_mesa_delete_buffer_object( struct gl_context *ctx, struct gl_buffer_object *bufObj ) +{ + (void) ctx; + + if (bufObj->Data) + free(bufObj->Data); + + /* assign strange values here to help w/ debugging */ + bufObj->RefCount = -1000; + bufObj->Name = ~0; + + _glthread_DESTROY_MUTEX(bufObj->Mutex); + free(bufObj); +} + + + +/** + * Set ptr to bufObj w/ reference counting. + */ +void +_mesa_reference_buffer_object(struct gl_context *ctx, + struct gl_buffer_object **ptr, + struct gl_buffer_object *bufObj) +{ + if (*ptr == bufObj) + return; + + if (*ptr) { + /* Unreference the old buffer */ + GLboolean deleteFlag = GL_FALSE; + struct gl_buffer_object *oldObj = *ptr; + + _glthread_LOCK_MUTEX(oldObj->Mutex); + ASSERT(oldObj->RefCount > 0); + oldObj->RefCount--; +#if 0 + printf("BufferObj %p %d DECR to %d\n", + (void *) oldObj, oldObj->Name, oldObj->RefCount); +#endif + deleteFlag = (oldObj->RefCount == 0); + _glthread_UNLOCK_MUTEX(oldObj->Mutex); + + if (deleteFlag) { + + /* some sanity checking: don't delete a buffer still in use */ +#if 0 + /* unfortunately, these tests are invalid during context tear-down */ + ASSERT(ctx->Array.ArrayBufferObj != bufObj); + ASSERT(ctx->Array.ElementArrayBufferObj != bufObj); + ASSERT(ctx->Array.ArrayObj->Vertex.BufferObj != bufObj); +#endif + + ASSERT(ctx->Driver.DeleteBuffer); + ctx->Driver.DeleteBuffer(ctx, oldObj); + } + + *ptr = NULL; + } + ASSERT(!*ptr); + + if (bufObj) { + /* reference new buffer */ + _glthread_LOCK_MUTEX(bufObj->Mutex); + if (bufObj->RefCount == 0) { + /* this buffer's being deleted (look just above) */ + /* Not sure this can every really happen. Warn if it does. */ + _mesa_problem(NULL, "referencing deleted buffer object"); + *ptr = NULL; + } + else { + bufObj->RefCount++; +#if 0 + printf("BufferObj %p %d INCR to %d\n", + (void *) bufObj, bufObj->Name, bufObj->RefCount); +#endif + *ptr = bufObj; + } + _glthread_UNLOCK_MUTEX(bufObj->Mutex); + } +} + + +/** + * Initialize a buffer object to default values. + */ +void +_mesa_initialize_buffer_object( struct gl_buffer_object *obj, + GLuint name, GLenum target ) +{ + (void) target; + + memset(obj, 0, sizeof(struct gl_buffer_object)); + _glthread_INIT_MUTEX(obj->Mutex); + obj->RefCount = 1; + obj->Name = name; + obj->Usage = GL_STATIC_DRAW_ARB; + obj->AccessFlags = DEFAULT_ACCESS; +} + + +/** + * Allocate space for and store data in a buffer object. Any data that was + * previously stored in the buffer object is lost. If \c data is \c NULL, + * memory will be allocated, but no copy will occur. + * + * This is the default callback for \c dd_function_table::BufferData() + * Note that all GL error checking will have been done already. + * + * \param ctx GL context. + * \param target Buffer object target on which to operate. + * \param size Size, in bytes, of the new data store. + * \param data Pointer to the data to store in the buffer object. This + * pointer may be \c NULL. + * \param usage Hints about how the data will be used. + * \param bufObj Object to be used. + * + * \return GL_TRUE for success, GL_FALSE for failure + * \sa glBufferDataARB, dd_function_table::BufferData. + */ +static GLboolean +_mesa_buffer_data( struct gl_context *ctx, GLenum target, GLsizeiptrARB size, + const GLvoid * data, GLenum usage, + struct gl_buffer_object * bufObj ) +{ + void * new_data; + + (void) ctx; (void) target; + + new_data = _mesa_realloc( bufObj->Data, bufObj->Size, size ); + if (new_data) { + bufObj->Data = (GLubyte *) new_data; + bufObj->Size = size; + bufObj->Usage = usage; + + if (data) { + memcpy( bufObj->Data, data, size ); + } + + return GL_TRUE; + } + else { + return GL_FALSE; + } +} + + +/** + * Replace data in a subrange of buffer object. If the data range + * specified by \c size + \c offset extends beyond the end of the buffer or + * if \c data is \c NULL, no copy is performed. + * + * This is the default callback for \c dd_function_table::BufferSubData() + * Note that all GL error checking will have been done already. + * + * \param ctx GL context. + * \param target Buffer object target on which to operate. + * \param offset Offset of the first byte to be modified. + * \param size Size, in bytes, of the data range. + * \param data Pointer to the data to store in the buffer object. + * \param bufObj Object to be used. + * + * \sa glBufferSubDataARB, dd_function_table::BufferSubData. + */ +static void +_mesa_buffer_subdata( struct gl_context *ctx, GLenum target, GLintptrARB offset, + GLsizeiptrARB size, const GLvoid * data, + struct gl_buffer_object * bufObj ) +{ + (void) ctx; (void) target; + + /* this should have been caught in _mesa_BufferSubData() */ + ASSERT(size + offset <= bufObj->Size); + + if (bufObj->Data) { + memcpy( (GLubyte *) bufObj->Data + offset, data, size ); + } +} + + +/** + * Retrieve data from a subrange of buffer object. If the data range + * specified by \c size + \c offset extends beyond the end of the buffer or + * if \c data is \c NULL, no copy is performed. + * + * This is the default callback for \c dd_function_table::GetBufferSubData() + * Note that all GL error checking will have been done already. + * + * \param ctx GL context. + * \param target Buffer object target on which to operate. + * \param offset Offset of the first byte to be fetched. + * \param size Size, in bytes, of the data range. + * \param data Destination for data + * \param bufObj Object to be used. + * + * \sa glBufferGetSubDataARB, dd_function_table::GetBufferSubData. + */ +static void +_mesa_buffer_get_subdata( struct gl_context *ctx, GLenum target, GLintptrARB offset, + GLsizeiptrARB size, GLvoid * data, + struct gl_buffer_object * bufObj ) +{ + (void) ctx; (void) target; + + if (bufObj->Data && ((GLsizeiptrARB) (size + offset) <= bufObj->Size)) { + memcpy( data, (GLubyte *) bufObj->Data + offset, size ); + } +} + + +/** + * Default callback for \c dd_function_tabel::MapBuffer(). + * + * The function parameters will have been already tested for errors. + * + * \param ctx GL context. + * \param target Buffer object target on which to operate. + * \param access Information about how the buffer will be accessed. + * \param bufObj Object to be mapped. + * \return A pointer to the object's internal data store that can be accessed + * by the processor + * + * \sa glMapBufferARB, dd_function_table::MapBuffer + */ +static void * +_mesa_buffer_map( struct gl_context *ctx, GLenum target, GLenum access, + struct gl_buffer_object *bufObj ) +{ + (void) ctx; + (void) target; + (void) access; + /* Just return a direct pointer to the data */ + if (_mesa_bufferobj_mapped(bufObj)) { + /* already mapped! */ + return NULL; + } + bufObj->Pointer = bufObj->Data; + bufObj->Length = bufObj->Size; + bufObj->Offset = 0; + return bufObj->Pointer; +} + + +/** + * Default fallback for \c dd_function_table::MapBufferRange(). + * Called via glMapBufferRange(). + */ +static void * +_mesa_buffer_map_range( struct gl_context *ctx, GLenum target, GLintptr offset, + GLsizeiptr length, GLbitfield access, + struct gl_buffer_object *bufObj ) +{ + (void) ctx; + (void) target; + assert(!_mesa_bufferobj_mapped(bufObj)); + /* Just return a direct pointer to the data */ + bufObj->Pointer = bufObj->Data + offset; + bufObj->Length = length; + bufObj->Offset = offset; + bufObj->AccessFlags = access; + return bufObj->Pointer; +} + + +/** + * Default fallback for \c dd_function_table::FlushMappedBufferRange(). + * Called via glFlushMappedBufferRange(). + */ +static void +_mesa_buffer_flush_mapped_range( struct gl_context *ctx, GLenum target, + GLintptr offset, GLsizeiptr length, + struct gl_buffer_object *obj ) +{ + (void) ctx; + (void) target; + (void) offset; + (void) length; + (void) obj; + /* no-op */ +} + + +/** + * Default callback for \c dd_function_table::MapBuffer(). + * + * The input parameters will have been already tested for errors. + * + * \sa glUnmapBufferARB, dd_function_table::UnmapBuffer + */ +static GLboolean +_mesa_buffer_unmap( struct gl_context *ctx, GLenum target, + struct gl_buffer_object *bufObj ) +{ + (void) ctx; + (void) target; + /* XXX we might assert here that bufObj->Pointer is non-null */ + bufObj->Pointer = NULL; + bufObj->Length = 0; + bufObj->Offset = 0; + bufObj->AccessFlags = 0x0; + return GL_TRUE; +} + + +/** + * Default fallback for \c dd_function_table::CopyBufferSubData(). + * Called via glCopyBuffserSubData(). + */ +static void +_mesa_copy_buffer_subdata(struct gl_context *ctx, + struct gl_buffer_object *src, + struct gl_buffer_object *dst, + GLintptr readOffset, GLintptr writeOffset, + GLsizeiptr size) +{ + GLubyte *srcPtr, *dstPtr; + + /* buffer should not already be mapped */ + assert(!_mesa_bufferobj_mapped(src)); + assert(!_mesa_bufferobj_mapped(dst)); + + srcPtr = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_COPY_READ_BUFFER, + GL_READ_ONLY, src); + dstPtr = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_COPY_WRITE_BUFFER, + GL_WRITE_ONLY, dst); + + if (srcPtr && dstPtr) + memcpy(dstPtr + writeOffset, srcPtr + readOffset, size); + + ctx->Driver.UnmapBuffer(ctx, GL_COPY_READ_BUFFER, src); + ctx->Driver.UnmapBuffer(ctx, GL_COPY_WRITE_BUFFER, dst); +} + + + +/** + * Initialize the state associated with buffer objects + */ +void +_mesa_init_buffer_objects( struct gl_context *ctx ) +{ + memset(&DummyBufferObject, 0, sizeof(DummyBufferObject)); + _glthread_INIT_MUTEX(DummyBufferObject.Mutex); + DummyBufferObject.RefCount = 1000*1000*1000; /* never delete */ + + _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj, + ctx->Shared->NullBufferObj); + _mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj, + ctx->Shared->NullBufferObj); + + _mesa_reference_buffer_object(ctx, &ctx->CopyReadBuffer, + ctx->Shared->NullBufferObj); + _mesa_reference_buffer_object(ctx, &ctx->CopyWriteBuffer, + ctx->Shared->NullBufferObj); +} + + +void +_mesa_free_buffer_objects( struct gl_context *ctx ) +{ + _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj, NULL); + _mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj, NULL); + + _mesa_reference_buffer_object(ctx, &ctx->CopyReadBuffer, NULL); + _mesa_reference_buffer_object(ctx, &ctx->CopyWriteBuffer, NULL); +} + + +/** + * Bind the specified target to buffer for the specified context. + * Called by glBindBuffer() and other functions. + */ +static void +bind_buffer_object(struct gl_context *ctx, GLenum target, GLuint buffer) +{ + struct gl_buffer_object *oldBufObj; + struct gl_buffer_object *newBufObj = NULL; + struct gl_buffer_object **bindTarget = NULL; + + bindTarget = get_buffer_target(ctx, target); + if (!bindTarget) { + _mesa_error(ctx, GL_INVALID_ENUM, "glBindBufferARB(target 0x%x)", target); + return; + } + + /* Get pointer to old buffer object (to be unbound) */ + oldBufObj = *bindTarget; + if (oldBufObj && oldBufObj->Name == buffer) + return; /* rebinding the same buffer object- no change */ + + /* + * Get pointer to new buffer object (newBufObj) + */ + if (buffer == 0) { + /* The spec says there's not a buffer object named 0, but we use + * one internally because it simplifies things. + */ + newBufObj = ctx->Shared->NullBufferObj; + } + else { + /* non-default buffer object */ + newBufObj = _mesa_lookup_bufferobj(ctx, buffer); + if (!newBufObj || newBufObj == &DummyBufferObject) { + /* If this is a new buffer object id, or one which was generated but + * never used before, allocate a buffer object now. + */ + ASSERT(ctx->Driver.NewBufferObject); + newBufObj = ctx->Driver.NewBufferObject(ctx, buffer, target); + if (!newBufObj) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindBufferARB"); + return; + } + _mesa_HashInsert(ctx->Shared->BufferObjects, buffer, newBufObj); + } + } + + /* bind new buffer */ + _mesa_reference_buffer_object(ctx, bindTarget, newBufObj); + + /* Pass BindBuffer call to device driver */ + if (ctx->Driver.BindBuffer) + ctx->Driver.BindBuffer( ctx, target, newBufObj ); +} + + +/** + * Update the default buffer objects in the given context to reference those + * specified in the shared state and release those referencing the old + * shared state. + */ +void +_mesa_update_default_objects_buffer_objects(struct gl_context *ctx) +{ + /* Bind the NullBufferObj to remove references to those + * in the shared context hash table. + */ + bind_buffer_object( ctx, GL_ARRAY_BUFFER_ARB, 0); + bind_buffer_object( ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, 0); + bind_buffer_object( ctx, GL_PIXEL_PACK_BUFFER_ARB, 0); + bind_buffer_object( ctx, GL_PIXEL_UNPACK_BUFFER_ARB, 0); +} + + + +/** + * Return the gl_buffer_object for the given ID. + * Always return NULL for ID 0. + */ +struct gl_buffer_object * +_mesa_lookup_bufferobj(struct gl_context *ctx, GLuint buffer) +{ + if (buffer == 0) + return NULL; + else + return (struct gl_buffer_object *) + _mesa_HashLookup(ctx->Shared->BufferObjects, buffer); +} + + +/** + * If *ptr points to obj, set ptr = the Null/default buffer object. + * This is a helper for buffer object deletion. + * The GL spec says that deleting a buffer object causes it to get + * unbound from all arrays in the current context. + */ +static void +unbind(struct gl_context *ctx, + struct gl_buffer_object **ptr, + struct gl_buffer_object *obj) +{ + if (*ptr == obj) { + _mesa_reference_buffer_object(ctx, ptr, ctx->Shared->NullBufferObj); + } +} + + +/** + * Plug default/fallback buffer object functions into the device + * driver hooks. + */ +void +_mesa_init_buffer_object_functions(struct dd_function_table *driver) +{ + /* GL_ARB_vertex/pixel_buffer_object */ + driver->NewBufferObject = _mesa_new_buffer_object; + driver->DeleteBuffer = _mesa_delete_buffer_object; + driver->BindBuffer = NULL; + driver->BufferData = _mesa_buffer_data; + driver->BufferSubData = _mesa_buffer_subdata; + driver->GetBufferSubData = _mesa_buffer_get_subdata; + driver->MapBuffer = _mesa_buffer_map; + driver->UnmapBuffer = _mesa_buffer_unmap; + + /* GL_ARB_map_buffer_range */ + driver->MapBufferRange = _mesa_buffer_map_range; + driver->FlushMappedBufferRange = _mesa_buffer_flush_mapped_range; + + /* GL_ARB_copy_buffer */ + driver->CopyBufferSubData = _mesa_copy_buffer_subdata; +} + + + +/**********************************************************************/ +/* API Functions */ +/**********************************************************************/ + +void GLAPIENTRY +_mesa_BindBufferARB(GLenum target, GLuint buffer) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glBindBuffer(%s, %u)\n", + _mesa_lookup_enum_by_nr(target), buffer); + + bind_buffer_object(ctx, target, buffer); +} + + +/** + * Delete a set of buffer objects. + * + * \param n Number of buffer objects to delete. + * \param ids Array of \c n buffer object IDs. + */ +void GLAPIENTRY +_mesa_DeleteBuffersARB(GLsizei n, const GLuint *ids) +{ + GET_CURRENT_CONTEXT(ctx); + GLsizei i; + ASSERT_OUTSIDE_BEGIN_END(ctx); + FLUSH_VERTICES(ctx, 0); + + if (n < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glDeleteBuffersARB(n)"); + return; + } + + _glthread_LOCK_MUTEX(ctx->Shared->Mutex); + + for (i = 0; i < n; i++) { + struct gl_buffer_object *bufObj = _mesa_lookup_bufferobj(ctx, ids[i]); + if (bufObj) { + struct gl_array_object *arrayObj = ctx->Array.ArrayObj; + GLuint j; + + ASSERT(bufObj->Name == ids[i] || bufObj == &DummyBufferObject); + + if (_mesa_bufferobj_mapped(bufObj)) { + /* if mapped, unmap it now */ + ctx->Driver.UnmapBuffer(ctx, 0, bufObj); + bufObj->AccessFlags = DEFAULT_ACCESS; + bufObj->Pointer = NULL; + } + + /* unbind any vertex pointers bound to this buffer */ + unbind(ctx, &arrayObj->Vertex.BufferObj, bufObj); + unbind(ctx, &arrayObj->Weight.BufferObj, bufObj); + unbind(ctx, &arrayObj->Normal.BufferObj, bufObj); + unbind(ctx, &arrayObj->Color.BufferObj, bufObj); + unbind(ctx, &arrayObj->SecondaryColor.BufferObj, bufObj); + unbind(ctx, &arrayObj->FogCoord.BufferObj, bufObj); + unbind(ctx, &arrayObj->Index.BufferObj, bufObj); + unbind(ctx, &arrayObj->EdgeFlag.BufferObj, bufObj); + for (j = 0; j < Elements(arrayObj->TexCoord); j++) { + unbind(ctx, &arrayObj->TexCoord[j].BufferObj, bufObj); + } + for (j = 0; j < Elements(arrayObj->VertexAttrib); j++) { + unbind(ctx, &arrayObj->VertexAttrib[j].BufferObj, bufObj); + } + + if (ctx->Array.ArrayBufferObj == bufObj) { + _mesa_BindBufferARB( GL_ARRAY_BUFFER_ARB, 0 ); + } + if (ctx->Array.ElementArrayBufferObj == bufObj) { + _mesa_BindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, 0 ); + } + + /* unbind any pixel pack/unpack pointers bound to this buffer */ + if (ctx->Pack.BufferObj == bufObj) { + _mesa_BindBufferARB( GL_PIXEL_PACK_BUFFER_EXT, 0 ); + } + if (ctx->Unpack.BufferObj == bufObj) { + _mesa_BindBufferARB( GL_PIXEL_UNPACK_BUFFER_EXT, 0 ); + } + + /* The ID is immediately freed for re-use */ + _mesa_HashRemove(ctx->Shared->BufferObjects, ids[i]); + _mesa_reference_buffer_object(ctx, &bufObj, NULL); + } + } + + _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); +} + + +/** + * Generate a set of unique buffer object IDs and store them in \c buffer. + * + * \param n Number of IDs to generate. + * \param buffer Array of \c n locations to store the IDs. + */ +void GLAPIENTRY +_mesa_GenBuffersARB(GLsizei n, GLuint *buffer) +{ + GET_CURRENT_CONTEXT(ctx); + GLuint first; + GLint i; + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glGenBuffers(%d)\n", n); + + if (n < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGenBuffersARB"); + return; + } + + if (!buffer) { + return; + } + + /* + * This must be atomic (generation and allocation of buffer object IDs) + */ + _glthread_LOCK_MUTEX(ctx->Shared->Mutex); + + first = _mesa_HashFindFreeKeyBlock(ctx->Shared->BufferObjects, n); + + /* Insert the ID and pointer to dummy buffer object into hash table */ + for (i = 0; i < n; i++) { + _mesa_HashInsert(ctx->Shared->BufferObjects, first + i, + &DummyBufferObject); + buffer[i] = first + i; + } + + _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); +} + + +/** + * Determine if ID is the name of a buffer object. + * + * \param id ID of the potential buffer object. + * \return \c GL_TRUE if \c id is the name of a buffer object, + * \c GL_FALSE otherwise. + */ +GLboolean GLAPIENTRY +_mesa_IsBufferARB(GLuint id) +{ + struct gl_buffer_object *bufObj; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); + + _glthread_LOCK_MUTEX(ctx->Shared->Mutex); + bufObj = _mesa_lookup_bufferobj(ctx, id); + _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); + + return bufObj && bufObj != &DummyBufferObject; +} + + +void GLAPIENTRY +_mesa_BufferDataARB(GLenum target, GLsizeiptrARB size, + const GLvoid * data, GLenum usage) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_buffer_object *bufObj; + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glBufferData(%s, %ld, %p, %s)\n", + _mesa_lookup_enum_by_nr(target), + (long int) size, data, + _mesa_lookup_enum_by_nr(usage)); + + if (size < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glBufferDataARB(size < 0)"); + return; + } + + switch (usage) { + case GL_STREAM_DRAW_ARB: + case GL_STREAM_READ_ARB: + case GL_STREAM_COPY_ARB: + case GL_STATIC_DRAW_ARB: + case GL_STATIC_READ_ARB: + case GL_STATIC_COPY_ARB: + case GL_DYNAMIC_DRAW_ARB: + case GL_DYNAMIC_READ_ARB: + case GL_DYNAMIC_COPY_ARB: + /* OK */ + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glBufferDataARB(usage)"); + return; + } + + bufObj = get_buffer(ctx, target); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_ENUM, "glBufferDataARB(target)" ); + return; + } + if (!_mesa_is_bufferobj(bufObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glBufferDataARB(buffer 0)" ); + return; + } + + if (_mesa_bufferobj_mapped(bufObj)) { + /* Unmap the existing buffer. We'll replace it now. Not an error. */ + ctx->Driver.UnmapBuffer(ctx, target, bufObj); + bufObj->AccessFlags = DEFAULT_ACCESS; + ASSERT(bufObj->Pointer == NULL); + } + + FLUSH_VERTICES(ctx, _NEW_BUFFER_OBJECT); + + bufObj->Written = GL_TRUE; + +#ifdef VBO_DEBUG + printf("glBufferDataARB(%u, sz %ld, from %p, usage 0x%x)\n", + bufObj->Name, size, data, usage); +#endif + +#ifdef BOUNDS_CHECK + size += 100; +#endif + + ASSERT(ctx->Driver.BufferData); + if (!ctx->Driver.BufferData( ctx, target, size, data, usage, bufObj )) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBufferDataARB()"); + } +} + + +void GLAPIENTRY +_mesa_BufferSubDataARB(GLenum target, GLintptrARB offset, + GLsizeiptrARB size, const GLvoid * data) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_buffer_object *bufObj; + ASSERT_OUTSIDE_BEGIN_END(ctx); + + bufObj = buffer_object_subdata_range_good( ctx, target, offset, size, + "glBufferSubDataARB" ); + if (!bufObj) { + /* error already recorded */ + return; + } + + if (size == 0) + return; + + bufObj->Written = GL_TRUE; + + ASSERT(ctx->Driver.BufferSubData); + ctx->Driver.BufferSubData( ctx, target, offset, size, data, bufObj ); +} + + +void GLAPIENTRY +_mesa_GetBufferSubDataARB(GLenum target, GLintptrARB offset, + GLsizeiptrARB size, void * data) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_buffer_object *bufObj; + ASSERT_OUTSIDE_BEGIN_END(ctx); + + bufObj = buffer_object_subdata_range_good( ctx, target, offset, size, + "glGetBufferSubDataARB" ); + if (!bufObj) { + /* error already recorded */ + return; + } + + ASSERT(ctx->Driver.GetBufferSubData); + ctx->Driver.GetBufferSubData( ctx, target, offset, size, data, bufObj ); +} + + +void * GLAPIENTRY +_mesa_MapBufferARB(GLenum target, GLenum access) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_buffer_object * bufObj; + GLbitfield accessFlags; + void *map; + + ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL); + + switch (access) { + case GL_READ_ONLY_ARB: + accessFlags = GL_MAP_READ_BIT; + break; + case GL_WRITE_ONLY_ARB: + accessFlags = GL_MAP_WRITE_BIT; + break; + case GL_READ_WRITE_ARB: + accessFlags = GL_MAP_READ_BIT | GL_MAP_WRITE_BIT; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glMapBufferARB(access)"); + return NULL; + } + + bufObj = get_buffer(ctx, target); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_ENUM, "glMapBufferARB(target)" ); + return NULL; + } + if (!_mesa_is_bufferobj(bufObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glMapBufferARB(buffer 0)" ); + return NULL; + } + if (_mesa_bufferobj_mapped(bufObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glMapBufferARB(already mapped)"); + return NULL; + } + + ASSERT(ctx->Driver.MapBuffer); + map = ctx->Driver.MapBuffer( ctx, target, access, bufObj ); + if (!map) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMapBufferARB(map failed)"); + return NULL; + } + else { + /* The driver callback should have set these fields. + * This is important because other modules (like VBO) might call + * the driver function directly. + */ + ASSERT(bufObj->Pointer == map); + ASSERT(bufObj->Length == bufObj->Size); + ASSERT(bufObj->Offset == 0); + bufObj->AccessFlags = accessFlags; + } + + if (access == GL_WRITE_ONLY_ARB || access == GL_READ_WRITE_ARB) + bufObj->Written = GL_TRUE; + +#ifdef VBO_DEBUG + printf("glMapBufferARB(%u, sz %ld, access 0x%x)\n", + bufObj->Name, bufObj->Size, access); + if (access == GL_WRITE_ONLY_ARB) { + GLuint i; + GLubyte *b = (GLubyte *) bufObj->Pointer; + for (i = 0; i < bufObj->Size; i++) + b[i] = i & 0xff; + } +#endif + +#ifdef BOUNDS_CHECK + { + GLubyte *buf = (GLubyte *) bufObj->Pointer; + GLuint i; + /* buffer is 100 bytes larger than requested, fill with magic value */ + for (i = 0; i < 100; i++) { + buf[bufObj->Size - i - 1] = 123; + } + } +#endif + + return bufObj->Pointer; +} + + +GLboolean GLAPIENTRY +_mesa_UnmapBufferARB(GLenum target) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_buffer_object *bufObj; + GLboolean status = GL_TRUE; + ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); + + bufObj = get_buffer(ctx, target); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_ENUM, "glUnmapBufferARB(target)" ); + return GL_FALSE; + } + if (!_mesa_is_bufferobj(bufObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glUnmapBufferARB" ); + return GL_FALSE; + } + if (!_mesa_bufferobj_mapped(bufObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glUnmapBufferARB"); + return GL_FALSE; + } + +#ifdef BOUNDS_CHECK + if (bufObj->Access != GL_READ_ONLY_ARB) { + GLubyte *buf = (GLubyte *) bufObj->Pointer; + GLuint i; + /* check that last 100 bytes are still = magic value */ + for (i = 0; i < 100; i++) { + GLuint pos = bufObj->Size - i - 1; + if (buf[pos] != 123) { + _mesa_warning(ctx, "Out of bounds buffer object write detected" + " at position %d (value = %u)\n", + pos, buf[pos]); + } + } + } +#endif + +#ifdef VBO_DEBUG + if (bufObj->AccessFlags & GL_MAP_WRITE_BIT) { + GLuint i, unchanged = 0; + GLubyte *b = (GLubyte *) bufObj->Pointer; + GLint pos = -1; + /* check which bytes changed */ + for (i = 0; i < bufObj->Size - 1; i++) { + if (b[i] == (i & 0xff) && b[i+1] == ((i+1) & 0xff)) { + unchanged++; + if (pos == -1) + pos = i; + } + } + if (unchanged) { + printf("glUnmapBufferARB(%u): %u of %ld unchanged, starting at %d\n", + bufObj->Name, unchanged, bufObj->Size, pos); + } + } +#endif + + status = ctx->Driver.UnmapBuffer( ctx, target, bufObj ); + bufObj->AccessFlags = DEFAULT_ACCESS; + ASSERT(bufObj->Pointer == NULL); + ASSERT(bufObj->Offset == 0); + ASSERT(bufObj->Length == 0); + + return status; +} + + +void GLAPIENTRY +_mesa_GetBufferParameterivARB(GLenum target, GLenum pname, GLint *params) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_buffer_object *bufObj; + ASSERT_OUTSIDE_BEGIN_END(ctx); + + bufObj = get_buffer(ctx, target); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameterivARB(target)" ); + return; + } + if (!_mesa_is_bufferobj(bufObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGetBufferParameterivARB" ); + return; + } + + switch (pname) { + case GL_BUFFER_SIZE_ARB: + *params = (GLint) bufObj->Size; + return; + case GL_BUFFER_USAGE_ARB: + *params = bufObj->Usage; + return; + case GL_BUFFER_ACCESS_ARB: + *params = simplified_access_mode(bufObj->AccessFlags); + return; + case GL_BUFFER_MAPPED_ARB: + *params = _mesa_bufferobj_mapped(bufObj); + return; + case GL_BUFFER_ACCESS_FLAGS: + if (ctx->VersionMajor < 3) + goto invalid_pname; + *params = bufObj->AccessFlags; + return; + case GL_BUFFER_MAP_OFFSET: + if (ctx->VersionMajor < 3) + goto invalid_pname; + *params = (GLint) bufObj->Offset; + return; + case GL_BUFFER_MAP_LENGTH: + if (ctx->VersionMajor < 3) + goto invalid_pname; + *params = (GLint) bufObj->Length; + return; + default: + ; /* fall-through */ + } + +invalid_pname: + _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameterivARB(pname=%s)", + _mesa_lookup_enum_by_nr(pname)); +} + + +/** + * New in GL 3.2 + * This is pretty much a duplicate of GetBufferParameteriv() but the + * GL_BUFFER_SIZE_ARB attribute will be 64-bits on a 64-bit system. + */ +void GLAPIENTRY +_mesa_GetBufferParameteri64v(GLenum target, GLenum pname, GLint64 *params) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_buffer_object *bufObj; + ASSERT_OUTSIDE_BEGIN_END(ctx); + + bufObj = get_buffer(ctx, target); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameteri64v(target)" ); + return; + } + if (!_mesa_is_bufferobj(bufObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGetBufferParameteri64v" ); + return; + } + + switch (pname) { + case GL_BUFFER_SIZE_ARB: + *params = bufObj->Size; + return; + case GL_BUFFER_USAGE_ARB: + *params = bufObj->Usage; + return; + case GL_BUFFER_ACCESS_ARB: + *params = simplified_access_mode(bufObj->AccessFlags); + return; + case GL_BUFFER_ACCESS_FLAGS: + if (ctx->VersionMajor < 3) + goto invalid_pname; + *params = bufObj->AccessFlags; + return; + case GL_BUFFER_MAPPED_ARB: + *params = _mesa_bufferobj_mapped(bufObj); + return; + case GL_BUFFER_MAP_OFFSET: + if (ctx->VersionMajor < 3) + goto invalid_pname; + *params = bufObj->Offset; + return; + case GL_BUFFER_MAP_LENGTH: + if (ctx->VersionMajor < 3) + goto invalid_pname; + *params = bufObj->Length; + return; + default: + ; /* fall-through */ + } + +invalid_pname: + _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameteri64v(pname=%s)", + _mesa_lookup_enum_by_nr(pname)); +} + + +void GLAPIENTRY +_mesa_GetBufferPointervARB(GLenum target, GLenum pname, GLvoid **params) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_buffer_object * bufObj; + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (pname != GL_BUFFER_MAP_POINTER_ARB) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferPointervARB(pname)"); + return; + } + + bufObj = get_buffer(ctx, target); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferPointervARB(target)" ); + return; + } + if (!_mesa_is_bufferobj(bufObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGetBufferPointervARB" ); + return; + } + + *params = bufObj->Pointer; +} + + +void GLAPIENTRY +_mesa_CopyBufferSubData(GLenum readTarget, GLenum writeTarget, + GLintptr readOffset, GLintptr writeOffset, + GLsizeiptr size) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_buffer_object *src, *dst; + ASSERT_OUTSIDE_BEGIN_END(ctx); + + src = get_buffer(ctx, readTarget); + if (!src || !_mesa_is_bufferobj(src)) { + _mesa_error(ctx, GL_INVALID_ENUM, + "glCopyBuffserSubData(readTarget = 0x%x)", readTarget); + return; + } + + dst = get_buffer(ctx, writeTarget); + if (!dst || !_mesa_is_bufferobj(dst)) { + _mesa_error(ctx, GL_INVALID_ENUM, + "glCopyBuffserSubData(writeTarget = 0x%x)", writeTarget); + return; + } + + if (_mesa_bufferobj_mapped(src)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glCopyBuffserSubData(readBuffer is mapped)"); + return; + } + + if (_mesa_bufferobj_mapped(dst)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glCopyBuffserSubData(writeBuffer is mapped)"); + return; + } + + if (readOffset < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glCopyBuffserSubData(readOffset = %d)", (int) readOffset); + return; + } + + if (writeOffset < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glCopyBuffserSubData(writeOffset = %d)", (int) writeOffset); + return; + } + + if (readOffset + size > src->Size) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glCopyBuffserSubData(readOffset + size = %d)", + (int) (readOffset + size)); + return; + } + + if (writeOffset + size > dst->Size) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glCopyBuffserSubData(writeOffset + size = %d)", + (int) (writeOffset + size)); + return; + } + + if (src == dst) { + if (readOffset + size <= writeOffset) { + /* OK */ + } + else if (writeOffset + size <= readOffset) { + /* OK */ + } + else { + /* overlapping src/dst is illegal */ + _mesa_error(ctx, GL_INVALID_VALUE, + "glCopyBuffserSubData(overlapping src/dst)"); + return; + } + } + + ctx->Driver.CopyBufferSubData(ctx, src, dst, readOffset, writeOffset, size); +} + + +/** + * See GL_ARB_map_buffer_range spec + */ +void * GLAPIENTRY +_mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length, + GLbitfield access) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_buffer_object *bufObj; + void *map; + + ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL); + + if (!ctx->Extensions.ARB_map_buffer_range) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBufferRange(extension not supported)"); + return NULL; + } + + if (offset < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glMapBufferRange(offset = %ld)", (long)offset); + return NULL; + } + + if (length < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glMapBufferRange(length = %ld)", (long)length); + return NULL; + } + + if ((access & (GL_MAP_READ_BIT | GL_MAP_WRITE_BIT)) == 0) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBufferRange(access indicates neither read or write)"); + return NULL; + } + + if (access & GL_MAP_READ_BIT) { + if ((access & GL_MAP_INVALIDATE_RANGE_BIT) || + (access & GL_MAP_INVALIDATE_BUFFER_BIT) || + (access & GL_MAP_UNSYNCHRONIZED_BIT)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBufferRange(invalid access flags)"); + return NULL; + } + } + + if ((access & GL_MAP_FLUSH_EXPLICIT_BIT) && + ((access & GL_MAP_WRITE_BIT) == 0)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBufferRange(invalid access flags)"); + return NULL; + } + + bufObj = get_buffer(ctx, target); + if (!bufObj || !_mesa_is_bufferobj(bufObj)) { + _mesa_error(ctx, GL_INVALID_ENUM, + "glMapBufferRange(target = 0x%x)", target); + return NULL; + } + + if (offset + length > bufObj->Size) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glMapBufferRange(offset + length > size)"); + return NULL; + } + + if (_mesa_bufferobj_mapped(bufObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBufferRange(buffer already mapped)"); + return NULL; + } + + ASSERT(ctx->Driver.MapBufferRange); + map = ctx->Driver.MapBufferRange(ctx, target, offset, length, + access, bufObj); + if (!map) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMapBufferARB(map failed)"); + } + else { + /* The driver callback should have set all these fields. + * This is important because other modules (like VBO) might call + * the driver function directly. + */ + ASSERT(bufObj->Pointer == map); + ASSERT(bufObj->Length == length); + ASSERT(bufObj->Offset == offset); + ASSERT(bufObj->AccessFlags == access); + } + + return map; +} + + +/** + * See GL_ARB_map_buffer_range spec + */ +void GLAPIENTRY +_mesa_FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_buffer_object *bufObj; + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (!ctx->Extensions.ARB_map_buffer_range) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBufferRange(extension not supported)"); + return; + } + + if (offset < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glMapBufferRange(offset = %ld)", (long)offset); + return; + } + + if (length < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glMapBufferRange(length = %ld)", (long)length); + return; + } + + bufObj = get_buffer(ctx, target); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_ENUM, + "glMapBufferRange(target = 0x%x)", target); + return; + } + + if (!_mesa_is_bufferobj(bufObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBufferRange(current buffer is 0)"); + return; + } + + if (!_mesa_bufferobj_mapped(bufObj)) { + /* buffer is not mapped */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBufferRange(buffer is not mapped)"); + return; + } + + if ((bufObj->AccessFlags & GL_MAP_FLUSH_EXPLICIT_BIT) == 0) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBufferRange(GL_MAP_FLUSH_EXPLICIT_BIT not set)"); + return; + } + + if (offset + length > bufObj->Length) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glMapBufferRange(offset %ld + length %ld > mapped length %ld)", + (long)offset, (long)length, (long)bufObj->Length); + return; + } + + ASSERT(bufObj->AccessFlags & GL_MAP_WRITE_BIT); + + if (ctx->Driver.FlushMappedBufferRange) + ctx->Driver.FlushMappedBufferRange(ctx, target, offset, length, bufObj); +} + + +#if FEATURE_APPLE_object_purgeable +static GLenum +_mesa_BufferObjectPurgeable(struct gl_context *ctx, GLuint name, GLenum option) +{ + struct gl_buffer_object *bufObj; + GLenum retval; + + bufObj = _mesa_lookup_bufferobj(ctx, name); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glObjectPurgeable(name = 0x%x)", name); + return 0; + } + if (!_mesa_is_bufferobj(bufObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glObjectPurgeable(buffer 0)" ); + return 0; + } + + if (bufObj->Purgeable) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glObjectPurgeable(name = 0x%x) is already purgeable", name); + return GL_VOLATILE_APPLE; + } + + bufObj->Purgeable = GL_TRUE; + + retval = GL_VOLATILE_APPLE; + if (ctx->Driver.BufferObjectPurgeable) + retval = ctx->Driver.BufferObjectPurgeable(ctx, bufObj, option); + + return retval; +} + + +static GLenum +_mesa_RenderObjectPurgeable(struct gl_context *ctx, GLuint name, GLenum option) +{ + struct gl_renderbuffer *bufObj; + GLenum retval; + + bufObj = _mesa_lookup_renderbuffer(ctx, name); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glObjectUnpurgeable(name = 0x%x)", name); + return 0; + } + + if (bufObj->Purgeable) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glObjectPurgeable(name = 0x%x) is already purgeable", name); + return GL_VOLATILE_APPLE; + } + + bufObj->Purgeable = GL_TRUE; + + retval = GL_VOLATILE_APPLE; + if (ctx->Driver.RenderObjectPurgeable) + retval = ctx->Driver.RenderObjectPurgeable(ctx, bufObj, option); + + return retval; +} + + +static GLenum +_mesa_TextureObjectPurgeable(struct gl_context *ctx, GLuint name, GLenum option) +{ + struct gl_texture_object *bufObj; + GLenum retval; + + bufObj = _mesa_lookup_texture(ctx, name); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glObjectPurgeable(name = 0x%x)", name); + return 0; + } + + if (bufObj->Purgeable) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glObjectPurgeable(name = 0x%x) is already purgeable", name); + return GL_VOLATILE_APPLE; + } + + bufObj->Purgeable = GL_TRUE; + + retval = GL_VOLATILE_APPLE; + if (ctx->Driver.TextureObjectPurgeable) + retval = ctx->Driver.TextureObjectPurgeable(ctx, bufObj, option); + + return retval; +} + + +GLenum GLAPIENTRY +_mesa_ObjectPurgeableAPPLE(GLenum objectType, GLuint name, GLenum option) +{ + GLenum retval; + + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); + + if (name == 0) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glObjectPurgeable(name = 0x%x)", name); + return 0; + } + + switch (option) { + case GL_VOLATILE_APPLE: + case GL_RELEASED_APPLE: + /* legal */ + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, + "glObjectPurgeable(name = 0x%x) invalid option: %d", + name, option); + return 0; + } + + switch (objectType) { + case GL_TEXTURE: + retval = _mesa_TextureObjectPurgeable (ctx, name, option); + break; + case GL_RENDERBUFFER_EXT: + retval = _mesa_RenderObjectPurgeable (ctx, name, option); + break; + case GL_BUFFER_OBJECT_APPLE: + retval = _mesa_BufferObjectPurgeable (ctx, name, option); + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, + "glObjectPurgeable(name = 0x%x) invalid type: %d", + name, objectType); + return 0; + } + + /* In strict conformance to the spec, we must only return VOLATILE when + * when passed the VOLATILE option. Madness. + * + * XXX First fix the spec, then fix me. + */ + return option == GL_VOLATILE_APPLE ? GL_VOLATILE_APPLE : retval; +} + + +static GLenum +_mesa_BufferObjectUnpurgeable(struct gl_context *ctx, GLuint name, GLenum option) +{ + struct gl_buffer_object *bufObj; + GLenum retval; + + bufObj = _mesa_lookup_bufferobj(ctx, name); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glObjectUnpurgeable(name = 0x%x)", name); + return 0; + } + + if (! bufObj->Purgeable) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glObjectUnpurgeable(name = 0x%x) object is " + " already \"unpurged\"", name); + return 0; + } + + bufObj->Purgeable = GL_FALSE; + + retval = option; + if (ctx->Driver.BufferObjectUnpurgeable) + retval = ctx->Driver.BufferObjectUnpurgeable(ctx, bufObj, option); + + return retval; +} + + +static GLenum +_mesa_RenderObjectUnpurgeable(struct gl_context *ctx, GLuint name, GLenum option) +{ + struct gl_renderbuffer *bufObj; + GLenum retval; + + bufObj = _mesa_lookup_renderbuffer(ctx, name); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glObjectUnpurgeable(name = 0x%x)", name); + return 0; + } + + if (! bufObj->Purgeable) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glObjectUnpurgeable(name = 0x%x) object is " + " already \"unpurged\"", name); + return 0; + } + + bufObj->Purgeable = GL_FALSE; + + retval = option; + if (ctx->Driver.RenderObjectUnpurgeable) + retval = ctx->Driver.RenderObjectUnpurgeable(ctx, bufObj, option); + + return retval; +} + + +static GLenum +_mesa_TextureObjectUnpurgeable(struct gl_context *ctx, GLuint name, GLenum option) +{ + struct gl_texture_object *bufObj; + GLenum retval; + + bufObj = _mesa_lookup_texture(ctx, name); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glObjectUnpurgeable(name = 0x%x)", name); + return 0; + } + + if (! bufObj->Purgeable) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glObjectUnpurgeable(name = 0x%x) object is" + " already \"unpurged\"", name); + return 0; + } + + bufObj->Purgeable = GL_FALSE; + + retval = option; + if (ctx->Driver.TextureObjectUnpurgeable) + retval = ctx->Driver.TextureObjectUnpurgeable(ctx, bufObj, option); + + return retval; +} + + +GLenum GLAPIENTRY +_mesa_ObjectUnpurgeableAPPLE(GLenum objectType, GLuint name, GLenum option) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); + + if (name == 0) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glObjectUnpurgeable(name = 0x%x)", name); + return 0; + } + + switch (option) { + case GL_RETAINED_APPLE: + case GL_UNDEFINED_APPLE: + /* legal */ + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, + "glObjectUnpurgeable(name = 0x%x) invalid option: %d", + name, option); + return 0; + } + + switch (objectType) { + case GL_BUFFER_OBJECT_APPLE: + return _mesa_BufferObjectUnpurgeable(ctx, name, option); + case GL_TEXTURE: + return _mesa_TextureObjectUnpurgeable(ctx, name, option); + case GL_RENDERBUFFER_EXT: + return _mesa_RenderObjectUnpurgeable(ctx, name, option); + default: + _mesa_error(ctx, GL_INVALID_ENUM, + "glObjectUnpurgeable(name = 0x%x) invalid type: %d", + name, objectType); + return 0; + } +} + + +static void +_mesa_GetBufferObjectParameterivAPPLE(struct gl_context *ctx, GLuint name, + GLenum pname, GLint* params) +{ + struct gl_buffer_object *bufObj; + + bufObj = _mesa_lookup_bufferobj(ctx, name); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glGetObjectParameteriv(name = 0x%x) invalid object", name); + return; + } + + switch (pname) { + case GL_PURGEABLE_APPLE: + *params = bufObj->Purgeable; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetObjectParameteriv(name = 0x%x) invalid enum: %d", + name, pname); + break; + } +} + + +static void +_mesa_GetRenderObjectParameterivAPPLE(struct gl_context *ctx, GLuint name, + GLenum pname, GLint* params) +{ + struct gl_renderbuffer *bufObj; + + bufObj = _mesa_lookup_renderbuffer(ctx, name); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glObjectUnpurgeable(name = 0x%x)", name); + return; + } + + switch (pname) { + case GL_PURGEABLE_APPLE: + *params = bufObj->Purgeable; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetObjectParameteriv(name = 0x%x) invalid enum: %d", + name, pname); + break; + } +} + + +static void +_mesa_GetTextureObjectParameterivAPPLE(struct gl_context *ctx, GLuint name, + GLenum pname, GLint* params) +{ + struct gl_texture_object *bufObj; + + bufObj = _mesa_lookup_texture(ctx, name); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glObjectUnpurgeable(name = 0x%x)", name); + return; + } + + switch (pname) { + case GL_PURGEABLE_APPLE: + *params = bufObj->Purgeable; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetObjectParameteriv(name = 0x%x) invalid enum: %d", + name, pname); + break; + } +} + + +void GLAPIENTRY +_mesa_GetObjectParameterivAPPLE(GLenum objectType, GLuint name, GLenum pname, + GLint* params) +{ + GET_CURRENT_CONTEXT(ctx); + + if (name == 0) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glGetObjectParameteriv(name = 0x%x)", name); + return; + } + + switch (objectType) { + case GL_TEXTURE: + _mesa_GetTextureObjectParameterivAPPLE (ctx, name, pname, params); + break; + case GL_BUFFER_OBJECT_APPLE: + _mesa_GetBufferObjectParameterivAPPLE (ctx, name, pname, params); + break; + case GL_RENDERBUFFER_EXT: + _mesa_GetRenderObjectParameterivAPPLE (ctx, name, pname, params); + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetObjectParameteriv(name = 0x%x) invalid type: %d", + name, objectType); + } +} + +#endif /* FEATURE_APPLE_object_purgeable */ diff --git a/mesalib/src/mesa/main/context.c b/mesalib/src/mesa/main/context.c index 5d581c840..d5baf4a29 100644 --- a/mesalib/src/mesa/main/context.c +++ b/mesalib/src/mesa/main/context.c @@ -1,1883 +1,1885 @@ -/* - * Mesa 3-D graphics library - * Version: 7.3 - * - * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. - * Copyright (C) 2008 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/** - * \file context.c - * Mesa context/visual/framebuffer management functions. - * \author Brian Paul - */ - -/** - * \mainpage Mesa Main Module - * - * \section MainIntroduction Introduction - * - * The Mesa Main module consists of all the files in the main/ directory. - * Among the features of this module are: - *
    - *
  • Structures to represent most GL state
    • - *
  • State set/get functions
    • - *
  • Display lists
    • - *
  • Texture unit, object and image handling
    • - *
  • Matrix and attribute stacks
    • - *
- * - * Other modules are responsible for API dispatch, vertex transformation, - * point/line/triangle setup, rasterization, vertex array caching, - * vertex/fragment programs/shaders, etc. - * - * - * \section AboutDoxygen About Doxygen - * - * If you're viewing this information as Doxygen-generated HTML you'll - * see the documentation index at the top of this page. - * - * The first line lists the Mesa source code modules. - * The second line lists the indexes available for viewing the documentation - * for each module. - * - * Selecting the Main page link will display a summary of the module - * (this page). - * - * Selecting Data Structures will list all C structures. - * - * Selecting the File List link will list all the source files in - * the module. - * Selecting a filename will show a list of all functions defined in that file. - * - * Selecting the Data Fields link will display a list of all - * documented structure members. - * - * Selecting the Globals link will display a list - * of all functions, structures, global variables and macros in the module. - * - */ - - -#include "glheader.h" -#include "mfeatures.h" -#include "imports.h" -#include "accum.h" -#include "api_exec.h" -#include "arrayobj.h" -#include "attrib.h" -#include "blend.h" -#include "buffers.h" -#include "bufferobj.h" -#include "context.h" -#include "cpuinfo.h" -#include "debug.h" -#include "depth.h" -#include "dlist.h" -#include "eval.h" -#include "extensions.h" -#include "fbobject.h" -#include "feedback.h" -#include "fog.h" -#include "formats.h" -#include "framebuffer.h" -#include "hint.h" -#include "hash.h" -#include "light.h" -#include "lines.h" -#include "macros.h" -#include "matrix.h" -#include "multisample.h" -#include "pixel.h" -#include "pixelstore.h" -#include "points.h" -#include "polygon.h" -#include "queryobj.h" -#include "syncobj.h" -#include "rastpos.h" -#include "remap.h" -#include "scissor.h" -#include "shared.h" -#include "shaderobj.h" -#include "simple_list.h" -#include "state.h" -#include "stencil.h" -#include "texcompress_s3tc.h" -#include "texstate.h" -#include "transformfeedback.h" -#include "mtypes.h" -#include "varray.h" -#include "version.h" -#include "viewport.h" -#include "vtxfmt.h" -#include "program/program.h" -#include "program/prog_print.h" -#if _HAVE_FULL_GL -#include "math/m_matrix.h" -#endif -#include "main/dispatch.h" /* for _gloffset_COUNT */ - -#ifdef USE_SPARC_ASM -#include "sparc/sparc.h" -#endif - -#include "glsl_parser_extras.h" -#include - - -#ifndef MESA_VERBOSE -int MESA_VERBOSE = 0; -#endif - -#ifndef MESA_DEBUG_FLAGS -int MESA_DEBUG_FLAGS = 0; -#endif - - -/* ubyte -> float conversion */ -GLfloat _mesa_ubyte_to_float_color_tab[256]; - - - -/** - * Swap buffers notification callback. - * - * \param ctx GL context. - * - * Called by window system just before swapping buffers. - * We have to finish any pending rendering. - */ -void -_mesa_notifySwapBuffers(struct gl_context *ctx) -{ - if (MESA_VERBOSE & VERBOSE_SWAPBUFFERS) - _mesa_debug(ctx, "SwapBuffers\n"); - FLUSH_CURRENT( ctx, 0 ); - if (ctx->Driver.Flush) { - ctx->Driver.Flush(ctx); - } -} - - -/**********************************************************************/ -/** \name GL Visual allocation/destruction */ -/**********************************************************************/ -/*@{*/ - -/** - * Allocates a struct gl_config structure and initializes it via - * _mesa_initialize_visual(). - * - * \param dbFlag double buffering - * \param stereoFlag stereo buffer - * \param depthBits requested bits per depth buffer value. Any value in [0, 32] - * is acceptable but the actual depth type will be GLushort or GLuint as - * needed. - * \param stencilBits requested minimum bits per stencil buffer value - * \param accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits number of bits per color component in accum buffer. - * \param indexBits number of bits per pixel if \p rgbFlag is GL_FALSE - * \param redBits number of bits per color component in frame buffer for RGB(A) - * mode. We always use 8 in core Mesa though. - * \param greenBits same as above. - * \param blueBits same as above. - * \param alphaBits same as above. - * \param numSamples not really used. - * - * \return pointer to new struct gl_config or NULL if requested parameters can't be - * met. - * - * \note Need to add params for level and numAuxBuffers (at least) - */ -struct gl_config * -_mesa_create_visual( GLboolean dbFlag, - GLboolean stereoFlag, - GLint redBits, - GLint greenBits, - GLint blueBits, - GLint alphaBits, - GLint depthBits, - GLint stencilBits, - GLint accumRedBits, - GLint accumGreenBits, - GLint accumBlueBits, - GLint accumAlphaBits, - GLint numSamples ) -{ - struct gl_config *vis = CALLOC_STRUCT(gl_config); - if (vis) { - if (!_mesa_initialize_visual(vis, dbFlag, stereoFlag, - redBits, greenBits, blueBits, alphaBits, - depthBits, stencilBits, - accumRedBits, accumGreenBits, - accumBlueBits, accumAlphaBits, - numSamples)) { - free(vis); - return NULL; - } - } - return vis; -} - - -/** - * Makes some sanity checks and fills in the fields of the struct - * gl_config object with the given parameters. If the caller needs to - * set additional fields, he should just probably init the whole - * gl_config object himself. - * - * \return GL_TRUE on success, or GL_FALSE on failure. - * - * \sa _mesa_create_visual() above for the parameter description. - */ -GLboolean -_mesa_initialize_visual( struct gl_config *vis, - GLboolean dbFlag, - GLboolean stereoFlag, - GLint redBits, - GLint greenBits, - GLint blueBits, - GLint alphaBits, - GLint depthBits, - GLint stencilBits, - GLint accumRedBits, - GLint accumGreenBits, - GLint accumBlueBits, - GLint accumAlphaBits, - GLint numSamples ) -{ - assert(vis); - - if (depthBits < 0 || depthBits > 32) { - return GL_FALSE; - } - if (stencilBits < 0 || stencilBits > STENCIL_BITS) { - return GL_FALSE; - } - assert(accumRedBits >= 0); - assert(accumGreenBits >= 0); - assert(accumBlueBits >= 0); - assert(accumAlphaBits >= 0); - - vis->rgbMode = GL_TRUE; - vis->doubleBufferMode = dbFlag; - vis->stereoMode = stereoFlag; - - vis->redBits = redBits; - vis->greenBits = greenBits; - vis->blueBits = blueBits; - vis->alphaBits = alphaBits; - vis->rgbBits = redBits + greenBits + blueBits; - - vis->indexBits = 0; - vis->depthBits = depthBits; - vis->stencilBits = stencilBits; - - vis->accumRedBits = accumRedBits; - vis->accumGreenBits = accumGreenBits; - vis->accumBlueBits = accumBlueBits; - vis->accumAlphaBits = accumAlphaBits; - - vis->haveAccumBuffer = accumRedBits > 0; - vis->haveDepthBuffer = depthBits > 0; - vis->haveStencilBuffer = stencilBits > 0; - - vis->numAuxBuffers = 0; - vis->level = 0; - vis->sampleBuffers = numSamples > 0 ? 1 : 0; - vis->samples = numSamples; - - return GL_TRUE; -} - - -/** - * Destroy a visual and free its memory. - * - * \param vis visual. - * - * Frees the visual structure. - */ -void -_mesa_destroy_visual( struct gl_config *vis ) -{ - free(vis); -} - -/*@}*/ - - -/**********************************************************************/ -/** \name Context allocation, initialization, destroying - * - * The purpose of the most initialization functions here is to provide the - * default state values according to the OpenGL specification. - */ -/**********************************************************************/ -/*@{*/ - - -/** - * This is lame. gdb only seems to recognize enum types that are - * actually used somewhere. We want to be able to print/use enum - * values such as TEXTURE_2D_INDEX in gdb. But we don't actually use - * the gl_texture_index type anywhere. Thus, this lame function. - */ -static void -dummy_enum_func(void) -{ - gl_buffer_index bi = BUFFER_FRONT_LEFT; - gl_face_index fi = FACE_POS_X; - gl_frag_attrib fa = FRAG_ATTRIB_WPOS; - gl_frag_result fr = FRAG_RESULT_DEPTH; - gl_texture_index ti = TEXTURE_2D_ARRAY_INDEX; - gl_vert_attrib va = VERT_ATTRIB_POS; - gl_vert_result vr = VERT_RESULT_HPOS; - gl_geom_attrib ga = GEOM_ATTRIB_POSITION; - gl_geom_result gr = GEOM_RESULT_POS; - - (void) bi; - (void) fi; - (void) fa; - (void) fr; - (void) ti; - (void) va; - (void) vr; - (void) ga; - (void) gr; -} - - -/** - * One-time initialization mutex lock. - * - * \sa Used by one_time_init(). - */ -_glthread_DECLARE_STATIC_MUTEX(OneTimeLock); - - - -/** - * Calls all the various one-time-init functions in Mesa. - * - * While holding a global mutex lock, calls several initialization functions, - * and sets the glapi callbacks if the \c MESA_DEBUG environment variable is - * defined. - * - * \sa _math_init(). - */ -static void -one_time_init( struct gl_context *ctx ) -{ - static GLbitfield api_init_mask = 0x0; - - _glthread_LOCK_MUTEX(OneTimeLock); - - /* truly one-time init */ - if (!api_init_mask) { - GLuint i; - - /* do some implementation tests */ - assert( sizeof(GLbyte) == 1 ); - assert( sizeof(GLubyte) == 1 ); - assert( sizeof(GLshort) == 2 ); - assert( sizeof(GLushort) == 2 ); - assert( sizeof(GLint) == 4 ); - assert( sizeof(GLuint) == 4 ); - - _mesa_get_cpu_features(); - - _mesa_init_sqrt_table(); - - /* context dependence is never a one-time thing... */ - _mesa_init_get_hash(ctx); - - for (i = 0; i < 256; i++) { - _mesa_ubyte_to_float_color_tab[i] = (float) i / 255.0F; - } - -#if defined(DEBUG) && defined(__DATE__) && defined(__TIME__) - if (MESA_VERBOSE != 0) { - _mesa_debug(ctx, "Mesa %s DEBUG build %s %s\n", - MESA_VERSION_STRING, __DATE__, __TIME__); - } -#endif - -#ifdef DEBUG - _mesa_test_formats(); -#endif - } - - /* per-API one-time init */ - if (!(api_init_mask & (1 << ctx->API))) { - /* - * This is fine as ES does not use the remap table, but it may not be - * future-proof. We cannot always initialize the remap table because - * when an app is linked to libGLES*, there are not enough dynamic - * entries. - */ - if (ctx->API == API_OPENGL) - _mesa_init_remap_table(); - } - - api_init_mask |= 1 << ctx->API; - - _glthread_UNLOCK_MUTEX(OneTimeLock); - - /* Hopefully atexit() is widely available. If not, we may need some - * #ifdef tests here. - */ - atexit(_mesa_destroy_shader_compiler); - - dummy_enum_func(); -} - - -/** - * Initialize fields of gl_current_attrib (aka ctx->Current.*) - */ -static void -_mesa_init_current(struct gl_context *ctx) -{ - GLuint i; - - /* Init all to (0,0,0,1) */ - for (i = 0; i < Elements(ctx->Current.Attrib); i++) { - ASSIGN_4V( ctx->Current.Attrib[i], 0.0, 0.0, 0.0, 1.0 ); - } - - /* redo special cases: */ - ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_WEIGHT], 1.0, 0.0, 0.0, 0.0 ); - ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_NORMAL], 0.0, 0.0, 1.0, 1.0 ); - ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR0], 1.0, 1.0, 1.0, 1.0 ); - ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR1], 0.0, 0.0, 0.0, 1.0 ); - ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR_INDEX], 1.0, 0.0, 0.0, 1.0 ); - ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG], 1.0, 0.0, 0.0, 1.0 ); -} - - -/** - * Init vertex/fragment/geometry program limits. - * Important: drivers should override these with actual limits. - */ -static void -init_program_limits(GLenum type, struct gl_program_constants *prog) -{ - prog->MaxInstructions = MAX_PROGRAM_INSTRUCTIONS; - prog->MaxAluInstructions = MAX_PROGRAM_INSTRUCTIONS; - prog->MaxTexInstructions = MAX_PROGRAM_INSTRUCTIONS; - prog->MaxTexIndirections = MAX_PROGRAM_INSTRUCTIONS; - prog->MaxTemps = MAX_PROGRAM_TEMPS; - prog->MaxEnvParams = MAX_PROGRAM_ENV_PARAMS; - prog->MaxLocalParams = MAX_PROGRAM_LOCAL_PARAMS; - prog->MaxUniformComponents = 4 * MAX_UNIFORMS; - prog->MaxAddressOffset = MAX_PROGRAM_LOCAL_PARAMS; - - switch (type) { - case GL_VERTEX_PROGRAM_ARB: - prog->MaxParameters = MAX_VERTEX_PROGRAM_PARAMS; - prog->MaxAttribs = MAX_NV_VERTEX_PROGRAM_INPUTS; - prog->MaxAddressRegs = MAX_VERTEX_PROGRAM_ADDRESS_REGS; - break; - case GL_FRAGMENT_PROGRAM_ARB: - prog->MaxParameters = MAX_NV_FRAGMENT_PROGRAM_PARAMS; - prog->MaxAttribs = MAX_NV_FRAGMENT_PROGRAM_INPUTS; - prog->MaxAddressRegs = MAX_FRAGMENT_PROGRAM_ADDRESS_REGS; - break; - case MESA_GEOMETRY_PROGRAM: - prog->MaxParameters = MAX_NV_VERTEX_PROGRAM_PARAMS; - prog->MaxAttribs = MAX_NV_VERTEX_PROGRAM_INPUTS; - prog->MaxAddressRegs = MAX_VERTEX_PROGRAM_ADDRESS_REGS; - - prog->MaxGeometryTextureImageUnits = MAX_GEOMETRY_TEXTURE_IMAGE_UNITS; - prog->MaxGeometryVaryingComponents = MAX_GEOMETRY_VARYING_COMPONENTS; - prog->MaxVertexVaryingComponents = MAX_VERTEX_VARYING_COMPONENTS; - prog->MaxGeometryUniformComponents = MAX_GEOMETRY_UNIFORM_COMPONENTS; - prog->MaxGeometryOutputVertices = MAX_GEOMETRY_OUTPUT_VERTICES; - prog->MaxGeometryTotalOutputComponents = MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS; - break; - default: - assert(0 && "Bad program type in init_program_limits()"); - } - - /* Set the native limits to zero. This implies that there is no native - * support for shaders. Let the drivers fill in the actual values. - */ - prog->MaxNativeInstructions = 0; - prog->MaxNativeAluInstructions = 0; - prog->MaxNativeTexInstructions = 0; - prog->MaxNativeTexIndirections = 0; - prog->MaxNativeAttribs = 0; - prog->MaxNativeTemps = 0; - prog->MaxNativeAddressRegs = 0; - prog->MaxNativeParameters = 0; - - /* Set GLSL datatype range/precision info assuming IEEE float values. - * Drivers should override these defaults as needed. - */ - prog->MediumFloat.RangeMin = 127; - prog->MediumFloat.RangeMax = 127; - prog->MediumFloat.Precision = 23; - prog->LowFloat = prog->HighFloat = prog->MediumFloat; - - /* Assume ints are stored as floats for now, since this is the least-common - * denominator. The OpenGL ES spec implies (page 132) that the precision - * of integer types should be 0. Practically speaking, IEEE - * single-precision floating point values can only store integers in the - * range [-0x01000000, 0x01000000] without loss of precision. - */ - prog->MediumInt.RangeMin = 24; - prog->MediumInt.RangeMax = 24; - prog->MediumInt.Precision = 0; - prog->LowInt = prog->HighInt = prog->MediumInt; -} - - -/** - * Initialize fields of gl_constants (aka ctx->Const.*). - * Use defaults from config.h. The device drivers will often override - * some of these values (such as number of texture units). - */ -static void -_mesa_init_constants(struct gl_context *ctx) -{ - assert(ctx); - - /* Constants, may be overriden (usually only reduced) by device drivers */ - ctx->Const.MaxTextureMbytes = MAX_TEXTURE_MBYTES; - ctx->Const.MaxTextureLevels = MAX_TEXTURE_LEVELS; - ctx->Const.Max3DTextureLevels = MAX_3D_TEXTURE_LEVELS; - ctx->Const.MaxCubeTextureLevels = MAX_CUBE_TEXTURE_LEVELS; - ctx->Const.MaxTextureRectSize = MAX_TEXTURE_RECT_SIZE; - ctx->Const.MaxArrayTextureLayers = MAX_ARRAY_TEXTURE_LAYERS; - ctx->Const.MaxTextureCoordUnits = MAX_TEXTURE_COORD_UNITS; - ctx->Const.MaxTextureImageUnits = MAX_TEXTURE_IMAGE_UNITS; - ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureCoordUnits, - ctx->Const.MaxTextureImageUnits); - ctx->Const.MaxTextureMaxAnisotropy = MAX_TEXTURE_MAX_ANISOTROPY; - ctx->Const.MaxTextureLodBias = MAX_TEXTURE_LOD_BIAS; - ctx->Const.MaxArrayLockSize = MAX_ARRAY_LOCK_SIZE; - ctx->Const.SubPixelBits = SUB_PIXEL_BITS; - ctx->Const.MinPointSize = MIN_POINT_SIZE; - ctx->Const.MaxPointSize = MAX_POINT_SIZE; - ctx->Const.MinPointSizeAA = MIN_POINT_SIZE; - ctx->Const.MaxPointSizeAA = MAX_POINT_SIZE; - ctx->Const.PointSizeGranularity = (GLfloat) POINT_SIZE_GRANULARITY; - ctx->Const.MinLineWidth = MIN_LINE_WIDTH; - ctx->Const.MaxLineWidth = MAX_LINE_WIDTH; - ctx->Const.MinLineWidthAA = MIN_LINE_WIDTH; - ctx->Const.MaxLineWidthAA = MAX_LINE_WIDTH; - ctx->Const.LineWidthGranularity = (GLfloat) LINE_WIDTH_GRANULARITY; - ctx->Const.MaxColorTableSize = MAX_COLOR_TABLE_SIZE; - ctx->Const.MaxClipPlanes = MAX_CLIP_PLANES; - ctx->Const.MaxLights = MAX_LIGHTS; - ctx->Const.MaxShininess = 128.0; - ctx->Const.MaxSpotExponent = 128.0; - ctx->Const.MaxViewportWidth = MAX_WIDTH; - ctx->Const.MaxViewportHeight = MAX_HEIGHT; -#if FEATURE_ARB_vertex_program - init_program_limits(GL_VERTEX_PROGRAM_ARB, &ctx->Const.VertexProgram); -#endif -#if FEATURE_ARB_fragment_program - init_program_limits(GL_FRAGMENT_PROGRAM_ARB, &ctx->Const.FragmentProgram); -#endif -#if FEATURE_ARB_geometry_shader4 - init_program_limits(MESA_GEOMETRY_PROGRAM, &ctx->Const.GeometryProgram); -#endif - ctx->Const.MaxProgramMatrices = MAX_PROGRAM_MATRICES; - ctx->Const.MaxProgramMatrixStackDepth = MAX_PROGRAM_MATRIX_STACK_DEPTH; - - /* CheckArrayBounds is overriden by drivers/x11 for X server */ - ctx->Const.CheckArrayBounds = GL_FALSE; - - /* GL_ARB_draw_buffers */ - ctx->Const.MaxDrawBuffers = MAX_DRAW_BUFFERS; - -#if FEATURE_EXT_framebuffer_object - ctx->Const.MaxColorAttachments = MAX_COLOR_ATTACHMENTS; - ctx->Const.MaxRenderbufferSize = MAX_WIDTH; -#endif - -#if FEATURE_ARB_vertex_shader - ctx->Const.MaxVertexTextureImageUnits = MAX_VERTEX_TEXTURE_IMAGE_UNITS; - ctx->Const.MaxCombinedTextureImageUnits = MAX_COMBINED_TEXTURE_IMAGE_UNITS; - ctx->Const.MaxVarying = MAX_VARYING; -#endif - - /* Shading language version */ - if (ctx->API == API_OPENGL) { - ctx->Const.GLSLVersion = 120; - } - else if (ctx->API == API_OPENGLES2) { - ctx->Const.GLSLVersion = 100; - } - else if (ctx->API == API_OPENGLES) { - ctx->Const.GLSLVersion = 0; /* GLSL not supported */ - } - - /* GL_ARB_framebuffer_object */ - ctx->Const.MaxSamples = 0; - - /* GL_ARB_sync */ - ctx->Const.MaxServerWaitTimeout = (GLuint64) ~0; - - /* GL_ATI_envmap_bumpmap */ - ctx->Const.SupportedBumpUnits = SUPPORTED_ATI_BUMP_UNITS; - - /* GL_EXT_provoking_vertex */ - ctx->Const.QuadsFollowProvokingVertexConvention = GL_TRUE; - - /* GL_EXT_transform_feedback */ - ctx->Const.MaxTransformFeedbackSeparateAttribs = MAX_FEEDBACK_ATTRIBS; - ctx->Const.MaxTransformFeedbackSeparateComponents = 4 * MAX_FEEDBACK_ATTRIBS; - ctx->Const.MaxTransformFeedbackInterleavedComponents = 4 * MAX_FEEDBACK_ATTRIBS; - - /* GL 3.2: hard-coded for now: */ - ctx->Const.ProfileMask = GL_CONTEXT_COMPATIBILITY_PROFILE_BIT; - - /** GL_EXT_gpu_shader4 */ - ctx->Const.MinProgramTexelOffset = -8; - ctx->Const.MaxProgramTexelOffset = 7; -} - - -/** - * Do some sanity checks on the limits/constants for the given context. - * Only called the first time a context is bound. - */ -static void -check_context_limits(struct gl_context *ctx) -{ - /* check that we don't exceed the size of various bitfields */ - assert(VERT_RESULT_MAX <= - (8 * sizeof(ctx->VertexProgram._Current->Base.OutputsWritten))); - assert(FRAG_ATTRIB_MAX <= - (8 * sizeof(ctx->FragmentProgram._Current->Base.InputsRead))); - - assert(MAX_COMBINED_TEXTURE_IMAGE_UNITS <= 8 * sizeof(GLbitfield)); - - /* shader-related checks */ - assert(ctx->Const.FragmentProgram.MaxLocalParams <= MAX_PROGRAM_LOCAL_PARAMS); - assert(ctx->Const.VertexProgram.MaxLocalParams <= MAX_PROGRAM_LOCAL_PARAMS); - - assert(MAX_NV_FRAGMENT_PROGRAM_TEMPS <= MAX_PROGRAM_TEMPS); - assert(MAX_NV_VERTEX_PROGRAM_TEMPS <= MAX_PROGRAM_TEMPS); - assert(MAX_NV_VERTEX_PROGRAM_INPUTS <= VERT_ATTRIB_MAX); - assert(MAX_NV_VERTEX_PROGRAM_OUTPUTS <= VERT_RESULT_MAX); - - /* Texture unit checks */ - assert(ctx->Const.MaxTextureImageUnits > 0); - assert(ctx->Const.MaxTextureImageUnits <= MAX_TEXTURE_IMAGE_UNITS); - assert(ctx->Const.MaxTextureCoordUnits > 0); - assert(ctx->Const.MaxTextureCoordUnits <= MAX_TEXTURE_COORD_UNITS); - assert(ctx->Const.MaxTextureUnits > 0); - assert(ctx->Const.MaxTextureUnits <= MAX_TEXTURE_IMAGE_UNITS); - assert(ctx->Const.MaxTextureUnits <= MAX_TEXTURE_COORD_UNITS); - assert(ctx->Const.MaxTextureUnits == MIN2(ctx->Const.MaxTextureImageUnits, - ctx->Const.MaxTextureCoordUnits)); - assert(ctx->Const.MaxCombinedTextureImageUnits > 0); - assert(ctx->Const.MaxCombinedTextureImageUnits <= MAX_COMBINED_TEXTURE_IMAGE_UNITS); - assert(ctx->Const.MaxTextureCoordUnits <= MAX_COMBINED_TEXTURE_IMAGE_UNITS); - /* number of coord units cannot be greater than number of image units */ - assert(ctx->Const.MaxTextureCoordUnits <= ctx->Const.MaxTextureImageUnits); - - - /* Texture size checks */ - assert(ctx->Const.MaxTextureLevels <= MAX_TEXTURE_LEVELS); - assert(ctx->Const.Max3DTextureLevels <= MAX_3D_TEXTURE_LEVELS); - assert(ctx->Const.MaxCubeTextureLevels <= MAX_CUBE_TEXTURE_LEVELS); - assert(ctx->Const.MaxTextureRectSize <= MAX_TEXTURE_RECT_SIZE); - - /* make sure largest texture image is <= MAX_WIDTH in size */ - assert((1 << (ctx->Const.MaxTextureLevels - 1)) <= MAX_WIDTH); - assert((1 << (ctx->Const.MaxCubeTextureLevels - 1)) <= MAX_WIDTH); - assert((1 << (ctx->Const.Max3DTextureLevels - 1)) <= MAX_WIDTH); - - /* Texture level checks */ - assert(MAX_TEXTURE_LEVELS >= MAX_3D_TEXTURE_LEVELS); - assert(MAX_TEXTURE_LEVELS >= MAX_CUBE_TEXTURE_LEVELS); - - /* Max texture size should be <= max viewport size (render to texture) */ - assert((1 << (MAX_TEXTURE_LEVELS - 1)) <= MAX_WIDTH); - - assert(ctx->Const.MaxViewportWidth <= MAX_WIDTH); - assert(ctx->Const.MaxViewportHeight <= MAX_WIDTH); - - assert(ctx->Const.MaxDrawBuffers <= MAX_DRAW_BUFFERS); - - /* if this fails, add more enum values to gl_buffer_index */ - assert(BUFFER_COLOR0 + MAX_DRAW_BUFFERS <= BUFFER_COUNT); - - /* XXX probably add more tests */ -} - - -/** - * Initialize the attribute groups in a GL context. - * - * \param ctx GL context. - * - * Initializes all the attributes, calling the respective init* - * functions for the more complex data structures. - */ -static GLboolean -init_attrib_groups(struct gl_context *ctx) -{ - assert(ctx); - - /* Constants */ - _mesa_init_constants( ctx ); - - /* Extensions */ - _mesa_init_extensions( ctx ); - - /* Attribute Groups */ - _mesa_init_accum( ctx ); - _mesa_init_attrib( ctx ); - _mesa_init_buffer_objects( ctx ); - _mesa_init_color( ctx ); - _mesa_init_current( ctx ); - _mesa_init_depth( ctx ); - _mesa_init_debug( ctx ); - _mesa_init_display_list( ctx ); - _mesa_init_eval( ctx ); - _mesa_init_fbobjects( ctx ); - _mesa_init_feedback( ctx ); - _mesa_init_fog( ctx ); - _mesa_init_hint( ctx ); - _mesa_init_line( ctx ); - _mesa_init_lighting( ctx ); - _mesa_init_matrix( ctx ); - _mesa_init_multisample( ctx ); - _mesa_init_pixel( ctx ); - _mesa_init_pixelstore( ctx ); - _mesa_init_point( ctx ); - _mesa_init_polygon( ctx ); - _mesa_init_program( ctx ); - _mesa_init_queryobj( ctx ); - _mesa_init_sync( ctx ); - _mesa_init_rastpos( ctx ); - _mesa_init_scissor( ctx ); - _mesa_init_shader_state( ctx ); - _mesa_init_stencil( ctx ); - _mesa_init_transform( ctx ); - _mesa_init_transform_feedback( ctx ); - _mesa_init_varray( ctx ); - _mesa_init_viewport( ctx ); - - if (!_mesa_init_texture( ctx )) - return GL_FALSE; - - _mesa_init_texture_s3tc( ctx ); - - /* Miscellaneous */ - ctx->NewState = _NEW_ALL; - ctx->ErrorValue = (GLenum) GL_NO_ERROR; - ctx->varying_vp_inputs = ~0; - - return GL_TRUE; -} - - -/** - * Update default objects in a GL context with respect to shared state. - * - * \param ctx GL context. - * - * Removes references to old default objects, (texture objects, program - * objects, etc.) and changes to reference those from the current shared - * state. - */ -static GLboolean -update_default_objects(struct gl_context *ctx) -{ - assert(ctx); - - _mesa_update_default_objects_program(ctx); - _mesa_update_default_objects_texture(ctx); - _mesa_update_default_objects_buffer_objects(ctx); - - return GL_TRUE; -} - - -/** - * This is the default function we plug into all dispatch table slots - * This helps prevents a segfault when someone calls a GL function without - * first checking if the extension's supported. - */ -static int -generic_nop(void) -{ - _mesa_warning(NULL, "User called no-op dispatch function (an unsupported extension function?)"); - return 0; -} - - -/** - * Allocate and initialize a new dispatch table. - */ -struct _glapi_table * -_mesa_alloc_dispatch_table(int size) -{ - /* Find the larger of Mesa's dispatch table and libGL's dispatch table. - * In practice, this'll be the same for stand-alone Mesa. But for DRI - * Mesa we do this to accomodate different versions of libGL and various - * DRI drivers. - */ - GLint numEntries = MAX2(_glapi_get_dispatch_table_size(), _gloffset_COUNT); - struct _glapi_table *table; - - /* should never happen, but just in case */ - numEntries = MAX2(numEntries, size); - - table = (struct _glapi_table *) malloc(numEntries * sizeof(_glapi_proc)); - if (table) { - _glapi_proc *entry = (_glapi_proc *) table; - GLint i; - for (i = 0; i < numEntries; i++) { - entry[i] = (_glapi_proc) generic_nop; - } - } - return table; -} - - -/** - * Initialize a struct gl_context struct (rendering context). - * - * This includes allocating all the other structs and arrays which hang off of - * the context by pointers. - * Note that the driver needs to pass in its dd_function_table here since - * we need to at least call driverFunctions->NewTextureObject to create the - * default texture objects. - * - * Called by _mesa_create_context(). - * - * Performs the imports and exports callback tables initialization, and - * miscellaneous one-time initializations. If no shared context is supplied one - * is allocated, and increase its reference count. Setups the GL API dispatch - * tables. Initialize the TNL module. Sets the maximum Z buffer depth. - * Finally queries the \c MESA_DEBUG and \c MESA_VERBOSE environment variables - * for debug flags. - * - * \param ctx the context to initialize - * \param api the GL API type to create the context for - * \param visual describes the visual attributes for this context - * \param share_list points to context to share textures, display lists, - * etc with, or NULL - * \param driverFunctions table of device driver functions for this context - * to use - * \param driverContext pointer to driver-specific context data - */ -GLboolean -_mesa_initialize_context(struct gl_context *ctx, - gl_api api, - const struct gl_config *visual, - struct gl_context *share_list, - const struct dd_function_table *driverFunctions, - void *driverContext) -{ - struct gl_shared_state *shared; - int i; - - /*ASSERT(driverContext);*/ - assert(driverFunctions->NewTextureObject); - assert(driverFunctions->FreeTexImageData); - - ctx->API = api; - ctx->Visual = *visual; - ctx->DrawBuffer = NULL; - ctx->ReadBuffer = NULL; - ctx->WinSysDrawBuffer = NULL; - ctx->WinSysReadBuffer = NULL; - - /* misc one-time initializations */ - one_time_init(ctx); - - /* Plug in driver functions and context pointer here. - * This is important because when we call alloc_shared_state() below - * we'll call ctx->Driver.NewTextureObject() to create the default - * textures. - */ - ctx->Driver = *driverFunctions; - ctx->DriverCtx = driverContext; - - if (share_list) { - /* share state with another context */ - shared = share_list->Shared; - } - else { - /* allocate new, unshared state */ - shared = _mesa_alloc_shared_state(ctx); - if (!shared) - return GL_FALSE; - } - - _glthread_LOCK_MUTEX(shared->Mutex); - ctx->Shared = shared; - shared->RefCount++; - _glthread_UNLOCK_MUTEX(shared->Mutex); - - if (!init_attrib_groups( ctx )) { - _mesa_release_shared_state(ctx, ctx->Shared); - return GL_FALSE; - } - -#if FEATURE_dispatch - /* setup the API dispatch tables */ - switch (ctx->API) { -#if FEATURE_GL - case API_OPENGL: - ctx->Exec = _mesa_create_exec_table(); - break; -#endif -#if FEATURE_ES1 - case API_OPENGLES: - ctx->Exec = _mesa_create_exec_table_es1(); - break; -#endif -#if FEATURE_ES2 - case API_OPENGLES2: - ctx->Exec = _mesa_create_exec_table_es2(); - break; -#endif - default: - _mesa_problem(ctx, "unknown or unsupported API"); - break; - } - - if (!ctx->Exec) { - _mesa_release_shared_state(ctx, ctx->Shared); - return GL_FALSE; - } -#endif - ctx->CurrentDispatch = ctx->Exec; - - ctx->FragmentProgram._MaintainTexEnvProgram - = (_mesa_getenv("MESA_TEX_PROG") != NULL); - - ctx->VertexProgram._MaintainTnlProgram - = (_mesa_getenv("MESA_TNL_PROG") != NULL); - if (ctx->VertexProgram._MaintainTnlProgram) { - /* this is required... */ - ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE; - } - - /* Mesa core handles all the formats that mesa core knows about. - * Drivers will want to override this list with just the formats - * they can handle, and confirm that appropriate fallbacks exist in - * _mesa_choose_tex_format(). - */ - memset(&ctx->TextureFormatSupported, GL_TRUE, - sizeof(ctx->TextureFormatSupported)); - - switch (ctx->API) { - case API_OPENGL: -#if FEATURE_dlist - ctx->Save = _mesa_create_save_table(); - if (!ctx->Save) { - _mesa_release_shared_state(ctx, ctx->Shared); - free(ctx->Exec); - return GL_FALSE; - } - - _mesa_install_save_vtxfmt( ctx, &ctx->ListState.ListVtxfmt ); -#endif - break; - case API_OPENGLES: - /** - * GL_OES_texture_cube_map says - * "Initially all texture generation modes are set to REFLECTION_MAP_OES" - */ - for (i = 0; i < MAX_TEXTURE_UNITS; i++) { - struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i]; - texUnit->GenS.Mode = GL_REFLECTION_MAP_NV; - texUnit->GenT.Mode = GL_REFLECTION_MAP_NV; - texUnit->GenR.Mode = GL_REFLECTION_MAP_NV; - texUnit->GenS._ModeBit = TEXGEN_REFLECTION_MAP_NV; - texUnit->GenT._ModeBit = TEXGEN_REFLECTION_MAP_NV; - texUnit->GenR._ModeBit = TEXGEN_REFLECTION_MAP_NV; - } - break; - case API_OPENGLES2: - ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE; - ctx->VertexProgram._MaintainTnlProgram = GL_TRUE; - ctx->Point.PointSprite = GL_TRUE; /* always on for ES 2.x */ - break; - } - - ctx->FirstTimeCurrent = GL_TRUE; - - return GL_TRUE; -} - - -/** - * Allocate and initialize a struct gl_context structure. - * Note that the driver needs to pass in its dd_function_table here since - * we need to at least call driverFunctions->NewTextureObject to initialize - * the rendering context. - * - * \param api the GL API type to create the context for - * \param visual a struct gl_config pointer (we copy the struct contents) - * \param share_list another context to share display lists with or NULL - * \param driverFunctions points to the dd_function_table into which the - * driver has plugged in all its special functions. - * \param driverContext points to the device driver's private context state - * - * \return pointer to a new __struct gl_contextRec or NULL if error. - */ -struct gl_context * -_mesa_create_context(gl_api api, - const struct gl_config *visual, - struct gl_context *share_list, - const struct dd_function_table *driverFunctions, - void *driverContext) -{ - struct gl_context *ctx; - - ASSERT(visual); - /*ASSERT(driverContext);*/ - - ctx = (struct gl_context *) calloc(1, sizeof(struct gl_context)); - if (!ctx) - return NULL; - - if (_mesa_initialize_context(ctx, api, visual, share_list, - driverFunctions, driverContext)) { - return ctx; - } - else { - free(ctx); - return NULL; - } -} - - -/** - * Free the data associated with the given context. - * - * But doesn't free the struct gl_context struct itself. - * - * \sa _mesa_initialize_context() and init_attrib_groups(). - */ -void -_mesa_free_context_data( struct gl_context *ctx ) -{ - if (!_mesa_get_current_context()){ - /* No current context, but we may need one in order to delete - * texture objs, etc. So temporarily bind the context now. - */ - _mesa_make_current(ctx, NULL, NULL); - } - - /* unreference WinSysDraw/Read buffers */ - _mesa_reference_framebuffer(&ctx->WinSysDrawBuffer, NULL); - _mesa_reference_framebuffer(&ctx->WinSysReadBuffer, NULL); - _mesa_reference_framebuffer(&ctx->DrawBuffer, NULL); - _mesa_reference_framebuffer(&ctx->ReadBuffer, NULL); - - _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, NULL); - _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL); - _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram, NULL); - - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, NULL); - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL); - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram, NULL); - - _mesa_free_attrib_data(ctx); - _mesa_free_buffer_objects(ctx); - _mesa_free_lighting_data( ctx ); - _mesa_free_eval_data( ctx ); - _mesa_free_texture_data( ctx ); - _mesa_free_matrix_data( ctx ); - _mesa_free_viewport_data( ctx ); - _mesa_free_program_data(ctx); - _mesa_free_shader_state(ctx); - _mesa_free_queryobj_data(ctx); - _mesa_free_sync_data(ctx); - _mesa_free_varray_data(ctx); - _mesa_free_transform_feedback(ctx); - - _mesa_delete_array_object(ctx, ctx->Array.DefaultArrayObj); - -#if FEATURE_ARB_pixel_buffer_object - _mesa_reference_buffer_object(ctx, &ctx->Pack.BufferObj, NULL); - _mesa_reference_buffer_object(ctx, &ctx->Unpack.BufferObj, NULL); - _mesa_reference_buffer_object(ctx, &ctx->DefaultPacking.BufferObj, NULL); -#endif - -#if FEATURE_ARB_vertex_buffer_object - _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj, NULL); - _mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj, NULL); -#endif - - /* free dispatch tables */ - free(ctx->Exec); - free(ctx->Save); - - /* Shared context state (display lists, textures, etc) */ - _mesa_release_shared_state( ctx, ctx->Shared ); - - /* needs to be after freeing shared state */ - _mesa_free_display_list_data(ctx); - - if (ctx->Extensions.String) - free((void *) ctx->Extensions.String); - - if (ctx->VersionString) - free(ctx->VersionString); - - /* unbind the context if it's currently bound */ - if (ctx == _mesa_get_current_context()) { - _mesa_make_current(NULL, NULL, NULL); - } -} - - -/** - * Destroy a struct gl_context structure. - * - * \param ctx GL context. - * - * Calls _mesa_free_context_data() and frees the gl_context object itself. - */ -void -_mesa_destroy_context( struct gl_context *ctx ) -{ - if (ctx) { - _mesa_free_context_data(ctx); - free( (void *) ctx ); - } -} - - -#if _HAVE_FULL_GL -/** - * Copy attribute groups from one context to another. - * - * \param src source context - * \param dst destination context - * \param mask bitwise OR of GL_*_BIT flags - * - * According to the bits specified in \p mask, copies the corresponding - * attributes from \p src into \p dst. For many of the attributes a simple \c - * memcpy is not enough due to the existence of internal pointers in their data - * structures. - */ -void -_mesa_copy_context( const struct gl_context *src, struct gl_context *dst, GLuint mask ) -{ - if (mask & GL_ACCUM_BUFFER_BIT) { - /* OK to memcpy */ - dst->Accum = src->Accum; - } - if (mask & GL_COLOR_BUFFER_BIT) { - /* OK to memcpy */ - dst->Color = src->Color; - } - if (mask & GL_CURRENT_BIT) { - /* OK to memcpy */ - dst->Current = src->Current; - } - if (mask & GL_DEPTH_BUFFER_BIT) { - /* OK to memcpy */ - dst->Depth = src->Depth; - } - if (mask & GL_ENABLE_BIT) { - /* no op */ - } - if (mask & GL_EVAL_BIT) { - /* OK to memcpy */ - dst->Eval = src->Eval; - } - if (mask & GL_FOG_BIT) { - /* OK to memcpy */ - dst->Fog = src->Fog; - } - if (mask & GL_HINT_BIT) { - /* OK to memcpy */ - dst->Hint = src->Hint; - } - if (mask & GL_LIGHTING_BIT) { - GLuint i; - /* begin with memcpy */ - dst->Light = src->Light; - /* fixup linked lists to prevent pointer insanity */ - make_empty_list( &(dst->Light.EnabledList) ); - for (i = 0; i < MAX_LIGHTS; i++) { - if (dst->Light.Light[i].Enabled) { - insert_at_tail(&(dst->Light.EnabledList), &(dst->Light.Light[i])); - } - } - } - if (mask & GL_LINE_BIT) { - /* OK to memcpy */ - dst->Line = src->Line; - } - if (mask & GL_LIST_BIT) { - /* OK to memcpy */ - dst->List = src->List; - } - if (mask & GL_PIXEL_MODE_BIT) { - /* OK to memcpy */ - dst->Pixel = src->Pixel; - } - if (mask & GL_POINT_BIT) { - /* OK to memcpy */ - dst->Point = src->Point; - } - if (mask & GL_POLYGON_BIT) { - /* OK to memcpy */ - dst->Polygon = src->Polygon; - } - if (mask & GL_POLYGON_STIPPLE_BIT) { - /* Use loop instead of memcpy due to problem with Portland Group's - * C compiler. Reported by John Stone. - */ - GLuint i; - for (i = 0; i < 32; i++) { - dst->PolygonStipple[i] = src->PolygonStipple[i]; - } - } - if (mask & GL_SCISSOR_BIT) { - /* OK to memcpy */ - dst->Scissor = src->Scissor; - } - if (mask & GL_STENCIL_BUFFER_BIT) { - /* OK to memcpy */ - dst->Stencil = src->Stencil; - } - if (mask & GL_TEXTURE_BIT) { - /* Cannot memcpy because of pointers */ - _mesa_copy_texture_state(src, dst); - } - if (mask & GL_TRANSFORM_BIT) { - /* OK to memcpy */ - dst->Transform = src->Transform; - } - if (mask & GL_VIEWPORT_BIT) { - /* Cannot use memcpy, because of pointers in GLmatrix _WindowMap */ - dst->Viewport.X = src->Viewport.X; - dst->Viewport.Y = src->Viewport.Y; - dst->Viewport.Width = src->Viewport.Width; - dst->Viewport.Height = src->Viewport.Height; - dst->Viewport.Near = src->Viewport.Near; - dst->Viewport.Far = src->Viewport.Far; - _math_matrix_copy(&dst->Viewport._WindowMap, &src->Viewport._WindowMap); - } - - /* XXX FIXME: Call callbacks? - */ - dst->NewState = _NEW_ALL; -} -#endif - - -/** - * Check if the given context can render into the given framebuffer - * by checking visual attributes. - * - * Most of these tests could go away because Mesa is now pretty flexible - * in terms of mixing rendering contexts with framebuffers. As long - * as RGB vs. CI mode agree, we're probably good. - * - * \return GL_TRUE if compatible, GL_FALSE otherwise. - */ -static GLboolean -check_compatible(const struct gl_context *ctx, - const struct gl_framebuffer *buffer) -{ - const struct gl_config *ctxvis = &ctx->Visual; - const struct gl_config *bufvis = &buffer->Visual; - - if (buffer == _mesa_get_incomplete_framebuffer()) - return GL_TRUE; - -#if 0 - /* disabling this fixes the fgl_glxgears pbuffer demo */ - if (ctxvis->doubleBufferMode && !bufvis->doubleBufferMode) - return GL_FALSE; -#endif - if (ctxvis->stereoMode && !bufvis->stereoMode) - return GL_FALSE; - if (ctxvis->haveAccumBuffer && !bufvis->haveAccumBuffer) - return GL_FALSE; - if (ctxvis->haveDepthBuffer && !bufvis->haveDepthBuffer) - return GL_FALSE; - if (ctxvis->haveStencilBuffer && !bufvis->haveStencilBuffer) - return GL_FALSE; - if (ctxvis->redMask && ctxvis->redMask != bufvis->redMask) - return GL_FALSE; - if (ctxvis->greenMask && ctxvis->greenMask != bufvis->greenMask) - return GL_FALSE; - if (ctxvis->blueMask && ctxvis->blueMask != bufvis->blueMask) - return GL_FALSE; -#if 0 - /* disabled (see bug 11161) */ - if (ctxvis->depthBits && ctxvis->depthBits != bufvis->depthBits) - return GL_FALSE; -#endif - if (ctxvis->stencilBits && ctxvis->stencilBits != bufvis->stencilBits) - return GL_FALSE; - - return GL_TRUE; -} - - -/** - * Do one-time initialization for the given framebuffer. Specifically, - * ask the driver for the window's current size and update the framebuffer - * object to match. - * Really, the device driver should totally take care of this. - */ -static void -initialize_framebuffer_size(struct gl_context *ctx, struct gl_framebuffer *fb) -{ - GLuint width, height; - if (ctx->Driver.GetBufferSize) { - ctx->Driver.GetBufferSize(fb, &width, &height); - if (ctx->Driver.ResizeBuffers) - ctx->Driver.ResizeBuffers(ctx, fb, width, height); - fb->Initialized = GL_TRUE; - } -} - - -/** - * Check if the viewport/scissor size has not yet been initialized. - * Initialize the size if the given width and height are non-zero. - */ -void -_mesa_check_init_viewport(struct gl_context *ctx, GLuint width, GLuint height) -{ - if (!ctx->ViewportInitialized && width > 0 && height > 0) { - /* Note: set flag here, before calling _mesa_set_viewport(), to prevent - * potential infinite recursion. - */ - ctx->ViewportInitialized = GL_TRUE; - _mesa_set_viewport(ctx, 0, 0, width, height); - _mesa_set_scissor(ctx, 0, 0, width, height); - } -} - - -/** - * Bind the given context to the given drawBuffer and readBuffer and - * make it the current context for the calling thread. - * We'll render into the drawBuffer and read pixels from the - * readBuffer (i.e. glRead/CopyPixels, glCopyTexImage, etc). - * - * We check that the context's and framebuffer's visuals are compatible - * and return immediately if they're not. - * - * \param newCtx the new GL context. If NULL then there will be no current GL - * context. - * \param drawBuffer the drawing framebuffer - * \param readBuffer the reading framebuffer - */ -GLboolean -_mesa_make_current( struct gl_context *newCtx, - struct gl_framebuffer *drawBuffer, - struct gl_framebuffer *readBuffer ) -{ - GET_CURRENT_CONTEXT(curCtx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(newCtx, "_mesa_make_current()\n"); - - /* Check that the context's and framebuffer's visuals are compatible. - */ - if (newCtx && drawBuffer && newCtx->WinSysDrawBuffer != drawBuffer) { - if (!check_compatible(newCtx, drawBuffer)) { - _mesa_warning(newCtx, - "MakeCurrent: incompatible visuals for context and drawbuffer"); - return GL_FALSE; - } - } - if (newCtx && readBuffer && newCtx->WinSysReadBuffer != readBuffer) { - if (!check_compatible(newCtx, readBuffer)) { - _mesa_warning(newCtx, - "MakeCurrent: incompatible visuals for context and readbuffer"); - return GL_FALSE; - } - } - - if (curCtx && - (curCtx->WinSysDrawBuffer || curCtx->WinSysReadBuffer) && /* make sure this context is valid for flushing */ - curCtx != newCtx) - _mesa_flush(curCtx); - - /* We used to call _glapi_check_multithread() here. Now do it in drivers */ - _glapi_set_context((void *) newCtx); - ASSERT(_mesa_get_current_context() == newCtx); - - if (!newCtx) { - _glapi_set_dispatch(NULL); /* none current */ - } - else { - _glapi_set_dispatch(newCtx->CurrentDispatch); - - if (drawBuffer && readBuffer) { - /* TODO: check if newCtx and buffer's visual match??? */ - - ASSERT(drawBuffer->Name == 0); - ASSERT(readBuffer->Name == 0); - _mesa_reference_framebuffer(&newCtx->WinSysDrawBuffer, drawBuffer); - _mesa_reference_framebuffer(&newCtx->WinSysReadBuffer, readBuffer); - - /* - * Only set the context's Draw/ReadBuffer fields if they're NULL - * or not bound to a user-created FBO. - */ - if (!newCtx->DrawBuffer || newCtx->DrawBuffer->Name == 0) { - /* KW: merge conflict here, revisit. - */ - /* fix up the fb fields - these will end up wrong otherwise - * if the DRIdrawable changes, and everything relies on them. - * This is a bit messy (same as needed in _mesa_BindFramebufferEXT) - */ - unsigned int i; - GLenum buffers[MAX_DRAW_BUFFERS]; - - _mesa_reference_framebuffer(&newCtx->DrawBuffer, drawBuffer); - - for(i = 0; i < newCtx->Const.MaxDrawBuffers; i++) { - buffers[i] = newCtx->Color.DrawBuffer[i]; - } - - _mesa_drawbuffers(newCtx, newCtx->Const.MaxDrawBuffers, - buffers, NULL); - } - if (!newCtx->ReadBuffer || newCtx->ReadBuffer->Name == 0) { - _mesa_reference_framebuffer(&newCtx->ReadBuffer, readBuffer); - } - - /* XXX only set this flag if we're really changing the draw/read - * framebuffer bindings. - */ - newCtx->NewState |= _NEW_BUFFERS; - -#if 1 - /* We want to get rid of these lines: */ - -#if _HAVE_FULL_GL - if (!drawBuffer->Initialized) { - initialize_framebuffer_size(newCtx, drawBuffer); - } - if (readBuffer != drawBuffer && !readBuffer->Initialized) { - initialize_framebuffer_size(newCtx, readBuffer); - } - - _mesa_resizebuffers(newCtx); -#endif - -#else - /* We want the drawBuffer and readBuffer to be initialized by - * the driver. - * This generally means the Width and Height match the actual - * window size and the renderbuffers (both hardware and software - * based) are allocated to match. The later can generally be - * done with a call to _mesa_resize_framebuffer(). - * - * It's theoretically possible for a buffer to have zero width - * or height, but for now, assert check that the driver did what's - * expected of it. - */ - ASSERT(drawBuffer->Width > 0); - ASSERT(drawBuffer->Height > 0); -#endif - - if (drawBuffer) { - _mesa_check_init_viewport(newCtx, - drawBuffer->Width, drawBuffer->Height); - } - } - - if (newCtx->FirstTimeCurrent) { - _mesa_compute_version(newCtx); - - newCtx->Extensions.String = _mesa_make_extension_string(newCtx); - - check_context_limits(newCtx); - - /* We can use this to help debug user's problems. Tell them to set - * the MESA_INFO env variable before running their app. Then the - * first time each context is made current we'll print some useful - * information. - */ - if (_mesa_getenv("MESA_INFO")) { - _mesa_print_info(); - } - - newCtx->FirstTimeCurrent = GL_FALSE; - } - } - - return GL_TRUE; -} - - -/** - * Make context 'ctx' share the display lists, textures and programs - * that are associated with 'ctxToShare'. - * Any display lists, textures or programs associated with 'ctx' will - * be deleted if nobody else is sharing them. - */ -GLboolean -_mesa_share_state(struct gl_context *ctx, struct gl_context *ctxToShare) -{ - if (ctx && ctxToShare && ctx->Shared && ctxToShare->Shared) { - struct gl_shared_state *oldSharedState = ctx->Shared; - - ctx->Shared = ctxToShare->Shared; - - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - ctx->Shared->RefCount++; - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - - update_default_objects(ctx); - - _mesa_release_shared_state(ctx, oldSharedState); - - return GL_TRUE; - } - else { - return GL_FALSE; - } -} - - - -/** - * \return pointer to the current GL context for this thread. - * - * Calls _glapi_get_context(). This isn't the fastest way to get the current - * context. If you need speed, see the #GET_CURRENT_CONTEXT macro in - * context.h. - */ -struct gl_context * -_mesa_get_current_context( void ) -{ - return (struct gl_context *) _glapi_get_context(); -} - - -/** - * Get context's current API dispatch table. - * - * It'll either be the immediate-mode execute dispatcher or the display list - * compile dispatcher. - * - * \param ctx GL context. - * - * \return pointer to dispatch_table. - * - * Simply returns __struct gl_contextRec::CurrentDispatch. - */ -struct _glapi_table * -_mesa_get_dispatch(struct gl_context *ctx) -{ - return ctx->CurrentDispatch; -} - -/*@}*/ - - -/**********************************************************************/ -/** \name Miscellaneous functions */ -/**********************************************************************/ -/*@{*/ - -/** - * Record an error. - * - * \param ctx GL context. - * \param error error code. - * - * Records the given error code and call the driver's dd_function_table::Error - * function if defined. - * - * \sa - * This is called via _mesa_error(). - */ -void -_mesa_record_error(struct gl_context *ctx, GLenum error) -{ - if (!ctx) - return; - - if (ctx->ErrorValue == GL_NO_ERROR) { - ctx->ErrorValue = error; - } - - /* Call device driver's error handler, if any. This is used on the Mac. */ - if (ctx->Driver.Error) { - ctx->Driver.Error(ctx); - } -} - - -/** - * Flush commands and wait for completion. - */ -void -_mesa_finish(struct gl_context *ctx) -{ - FLUSH_CURRENT( ctx, 0 ); - if (ctx->Driver.Finish) { - ctx->Driver.Finish(ctx); - } -} - - -/** - * Flush commands. - */ -void -_mesa_flush(struct gl_context *ctx) -{ - FLUSH_CURRENT( ctx, 0 ); - if (ctx->Driver.Flush) { - ctx->Driver.Flush(ctx); - } -} - - - -/** - * Execute glFinish(). - * - * Calls the #ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH macro and the - * dd_function_table::Finish driver callback, if not NULL. - */ -void GLAPIENTRY -_mesa_Finish(void) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - _mesa_finish(ctx); -} - - -/** - * Execute glFlush(). - * - * Calls the #ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH macro and the - * dd_function_table::Flush driver callback, if not NULL. - */ -void GLAPIENTRY -_mesa_Flush(void) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - _mesa_flush(ctx); -} - - -/** - * Set mvp_with_dp4 flag. If a driver has a preference for DP4 over - * MUL/MAD, or vice versa, call this function to register that. - * Otherwise we default to MUL/MAD. - */ -void -_mesa_set_mvp_with_dp4( struct gl_context *ctx, - GLboolean flag ) -{ - ctx->mvp_with_dp4 = flag; -} - - - -/** - * Prior to drawing anything with glBegin, glDrawArrays, etc. this function - * is called to see if it's valid to render. This involves checking that - * the current shader is valid and the framebuffer is complete. - * If an error is detected it'll be recorded here. - * \return GL_TRUE if OK to render, GL_FALSE if not - */ -GLboolean -_mesa_valid_to_render(struct gl_context *ctx, const char *where) -{ - bool vert_from_glsl_shader = false; - bool geom_from_glsl_shader = false; - bool frag_from_glsl_shader = false; - - /* This depends on having up to date derived state (shaders) */ - if (ctx->NewState) - _mesa_update_state(ctx); - - if (ctx->Shader.CurrentVertexProgram) { - vert_from_glsl_shader = true; - - if (!ctx->Shader.CurrentVertexProgram->LinkStatus) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "%s(shader not linked)", where); - return GL_FALSE; - } -#if 0 /* not normally enabled */ - { - char errMsg[100]; - if (!_mesa_validate_shader_program(ctx, - ctx->Shader.CurrentVertexProgram, - errMsg)) { - _mesa_warning(ctx, "Shader program %u is invalid: %s", - ctx->Shader.CurrentVertexProgram->Name, errMsg); - } - } -#endif - } - - if (ctx->Shader.CurrentGeometryProgram) { - geom_from_glsl_shader = true; - - if (!ctx->Shader.CurrentGeometryProgram->LinkStatus) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "%s(shader not linked)", where); - return GL_FALSE; - } -#if 0 /* not normally enabled */ - { - char errMsg[100]; - if (!_mesa_validate_shader_program(ctx, - ctx->Shader.CurrentGeometryProgram, - errMsg)) { - _mesa_warning(ctx, "Shader program %u is invalid: %s", - ctx->Shader.CurrentGeometryProgram->Name, errMsg); - } - } -#endif - } - - if (ctx->Shader.CurrentFragmentProgram) { - frag_from_glsl_shader = true; - - if (!ctx->Shader.CurrentFragmentProgram->LinkStatus) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "%s(shader not linked)", where); - return GL_FALSE; - } -#if 0 /* not normally enabled */ - { - char errMsg[100]; - if (!_mesa_validate_shader_program(ctx, - ctx->Shader.CurrentFragmentProgram, - errMsg)) { - _mesa_warning(ctx, "Shader program %u is invalid: %s", - ctx->Shader.CurrentFragmentProgram->Name, errMsg); - } - } -#endif - } - - /* Any shader stages that are not supplied by the GLSL shader and have - * assembly shaders enabled must now be validated. - */ - if (!vert_from_glsl_shader - && ctx->VertexProgram.Enabled && !ctx->VertexProgram._Enabled) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "%s(vertex program not valid)", where); - return GL_FALSE; - } - - /* FINISHME: If GL_NV_geometry_program4 is ever supported, the current - * FINISHME: geometry program should validated here. - */ - (void) geom_from_glsl_shader; - - if (!frag_from_glsl_shader) { - if (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "%s(fragment program not valid)", where); - return GL_FALSE; - } - - /* If drawing to integer-valued color buffers, there must be an - * active fragment shader (GL_EXT_texture_integer). - */ - if (ctx->DrawBuffer && ctx->DrawBuffer->_IntegerColor) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "%s(integer format but no fragment shader)", where); - return GL_FALSE; - } - } - - if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { - _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, - "%s(incomplete framebuffer)", where); - return GL_FALSE; - } - -#ifdef DEBUG - if (ctx->Shader.Flags & GLSL_LOG) { - struct gl_shader_program *shProg[MESA_SHADER_TYPES]; - gl_shader_type i; - - shProg[MESA_SHADER_VERTEX] = ctx->Shader.CurrentVertexProgram; - shProg[MESA_SHADER_GEOMETRY] = ctx->Shader.CurrentGeometryProgram; - shProg[MESA_SHADER_FRAGMENT] = ctx->Shader.CurrentFragmentProgram; - - for (i = 0; i < MESA_SHADER_TYPES; i++) { - struct gl_shader *sh; - - if (shProg[i] == NULL || shProg[i]->_Used - || shProg[i]->_LinkedShaders[i] == NULL) - continue; - - /* This is the first time this shader is being used. - * Append shader's constants/uniforms to log file. - * - * The logic is a little odd here. We only want to log data for each - * shader target that will actually be used, and we only want to log - * it once. It's possible to have a program bound to the vertex - * shader target that also supplied a fragment shader. If that - * program isn't also bound to the fragment shader target we don't - * want to log its fragment data. - */ - sh = shProg[i]->_LinkedShaders[i]; - switch (sh->Type) { - case GL_VERTEX_SHADER: - _mesa_append_uniforms_to_file(sh, &shProg[i]->VertexProgram->Base); - break; - - case GL_GEOMETRY_SHADER_ARB: - _mesa_append_uniforms_to_file(sh, - &shProg[i]->GeometryProgram->Base); - break; - - case GL_FRAGMENT_SHADER: - _mesa_append_uniforms_to_file(sh, - &shProg[i]->FragmentProgram->Base); - break; - } - } - - for (i = 0; i < MESA_SHADER_TYPES; i++) { - if (shProg[i] != NULL) - shProg[i]->_Used = GL_TRUE; - } - } -#endif - - return GL_TRUE; -} - - -/*@}*/ +/* + * Mesa 3-D graphics library + * Version: 7.3 + * + * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. + * Copyright (C) 2008 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file context.c + * Mesa context/visual/framebuffer management functions. + * \author Brian Paul + */ + +/** + * \mainpage Mesa Main Module + * + * \section MainIntroduction Introduction + * + * The Mesa Main module consists of all the files in the main/ directory. + * Among the features of this module are: + *
    + *
  • Structures to represent most GL state
    • + *
  • State set/get functions
    • + *
  • Display lists
    • + *
  • Texture unit, object and image handling
    • + *
  • Matrix and attribute stacks
    • + *
+ * + * Other modules are responsible for API dispatch, vertex transformation, + * point/line/triangle setup, rasterization, vertex array caching, + * vertex/fragment programs/shaders, etc. + * + * + * \section AboutDoxygen About Doxygen + * + * If you're viewing this information as Doxygen-generated HTML you'll + * see the documentation index at the top of this page. + * + * The first line lists the Mesa source code modules. + * The second line lists the indexes available for viewing the documentation + * for each module. + * + * Selecting the Main page link will display a summary of the module + * (this page). + * + * Selecting Data Structures will list all C structures. + * + * Selecting the File List link will list all the source files in + * the module. + * Selecting a filename will show a list of all functions defined in that file. + * + * Selecting the Data Fields link will display a list of all + * documented structure members. + * + * Selecting the Globals link will display a list + * of all functions, structures, global variables and macros in the module. + * + */ + + +#include "glheader.h" +#include "mfeatures.h" +#include "imports.h" +#include "accum.h" +#include "api_exec.h" +#include "arrayobj.h" +#include "attrib.h" +#include "blend.h" +#include "buffers.h" +#include "bufferobj.h" +#include "context.h" +#include "cpuinfo.h" +#include "debug.h" +#include "depth.h" +#include "dlist.h" +#include "eval.h" +#include "extensions.h" +#include "fbobject.h" +#include "feedback.h" +#include "fog.h" +#include "formats.h" +#include "framebuffer.h" +#include "hint.h" +#include "hash.h" +#include "light.h" +#include "lines.h" +#include "macros.h" +#include "matrix.h" +#include "multisample.h" +#include "pixel.h" +#include "pixelstore.h" +#include "points.h" +#include "polygon.h" +#include "queryobj.h" +#include "syncobj.h" +#include "rastpos.h" +#include "remap.h" +#include "scissor.h" +#include "shared.h" +#include "shaderobj.h" +#include "simple_list.h" +#include "state.h" +#include "stencil.h" +#include "texcompress_s3tc.h" +#include "texstate.h" +#include "transformfeedback.h" +#include "mtypes.h" +#include "varray.h" +#include "version.h" +#include "viewport.h" +#include "vtxfmt.h" +#include "program/program.h" +#include "program/prog_print.h" +#if _HAVE_FULL_GL +#include "math/m_matrix.h" +#endif +#include "main/dispatch.h" /* for _gloffset_COUNT */ + +#ifdef USE_SPARC_ASM +#include "sparc/sparc.h" +#endif + +#include "glsl_parser_extras.h" +#include + + +#ifndef MESA_VERBOSE +int MESA_VERBOSE = 0; +#endif + +#ifndef MESA_DEBUG_FLAGS +int MESA_DEBUG_FLAGS = 0; +#endif + + +/* ubyte -> float conversion */ +GLfloat _mesa_ubyte_to_float_color_tab[256]; + + + +/** + * Swap buffers notification callback. + * + * \param ctx GL context. + * + * Called by window system just before swapping buffers. + * We have to finish any pending rendering. + */ +void +_mesa_notifySwapBuffers(struct gl_context *ctx) +{ + if (MESA_VERBOSE & VERBOSE_SWAPBUFFERS) + _mesa_debug(ctx, "SwapBuffers\n"); + FLUSH_CURRENT( ctx, 0 ); + if (ctx->Driver.Flush) { + ctx->Driver.Flush(ctx); + } +} + + +/**********************************************************************/ +/** \name GL Visual allocation/destruction */ +/**********************************************************************/ +/*@{*/ + +/** + * Allocates a struct gl_config structure and initializes it via + * _mesa_initialize_visual(). + * + * \param dbFlag double buffering + * \param stereoFlag stereo buffer + * \param depthBits requested bits per depth buffer value. Any value in [0, 32] + * is acceptable but the actual depth type will be GLushort or GLuint as + * needed. + * \param stencilBits requested minimum bits per stencil buffer value + * \param accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits number of bits per color component in accum buffer. + * \param indexBits number of bits per pixel if \p rgbFlag is GL_FALSE + * \param redBits number of bits per color component in frame buffer for RGB(A) + * mode. We always use 8 in core Mesa though. + * \param greenBits same as above. + * \param blueBits same as above. + * \param alphaBits same as above. + * \param numSamples not really used. + * + * \return pointer to new struct gl_config or NULL if requested parameters can't be + * met. + * + * \note Need to add params for level and numAuxBuffers (at least) + */ +struct gl_config * +_mesa_create_visual( GLboolean dbFlag, + GLboolean stereoFlag, + GLint redBits, + GLint greenBits, + GLint blueBits, + GLint alphaBits, + GLint depthBits, + GLint stencilBits, + GLint accumRedBits, + GLint accumGreenBits, + GLint accumBlueBits, + GLint accumAlphaBits, + GLint numSamples ) +{ + struct gl_config *vis = CALLOC_STRUCT(gl_config); + if (vis) { + if (!_mesa_initialize_visual(vis, dbFlag, stereoFlag, + redBits, greenBits, blueBits, alphaBits, + depthBits, stencilBits, + accumRedBits, accumGreenBits, + accumBlueBits, accumAlphaBits, + numSamples)) { + free(vis); + return NULL; + } + } + return vis; +} + + +/** + * Makes some sanity checks and fills in the fields of the struct + * gl_config object with the given parameters. If the caller needs to + * set additional fields, he should just probably init the whole + * gl_config object himself. + * + * \return GL_TRUE on success, or GL_FALSE on failure. + * + * \sa _mesa_create_visual() above for the parameter description. + */ +GLboolean +_mesa_initialize_visual( struct gl_config *vis, + GLboolean dbFlag, + GLboolean stereoFlag, + GLint redBits, + GLint greenBits, + GLint blueBits, + GLint alphaBits, + GLint depthBits, + GLint stencilBits, + GLint accumRedBits, + GLint accumGreenBits, + GLint accumBlueBits, + GLint accumAlphaBits, + GLint numSamples ) +{ + assert(vis); + + if (depthBits < 0 || depthBits > 32) { + return GL_FALSE; + } + if (stencilBits < 0 || stencilBits > STENCIL_BITS) { + return GL_FALSE; + } + assert(accumRedBits >= 0); + assert(accumGreenBits >= 0); + assert(accumBlueBits >= 0); + assert(accumAlphaBits >= 0); + + vis->rgbMode = GL_TRUE; + vis->doubleBufferMode = dbFlag; + vis->stereoMode = stereoFlag; + + vis->redBits = redBits; + vis->greenBits = greenBits; + vis->blueBits = blueBits; + vis->alphaBits = alphaBits; + vis->rgbBits = redBits + greenBits + blueBits; + + vis->indexBits = 0; + vis->depthBits = depthBits; + vis->stencilBits = stencilBits; + + vis->accumRedBits = accumRedBits; + vis->accumGreenBits = accumGreenBits; + vis->accumBlueBits = accumBlueBits; + vis->accumAlphaBits = accumAlphaBits; + + vis->haveAccumBuffer = accumRedBits > 0; + vis->haveDepthBuffer = depthBits > 0; + vis->haveStencilBuffer = stencilBits > 0; + + vis->numAuxBuffers = 0; + vis->level = 0; + vis->sampleBuffers = numSamples > 0 ? 1 : 0; + vis->samples = numSamples; + + return GL_TRUE; +} + + +/** + * Destroy a visual and free its memory. + * + * \param vis visual. + * + * Frees the visual structure. + */ +void +_mesa_destroy_visual( struct gl_config *vis ) +{ + free(vis); +} + +/*@}*/ + + +/**********************************************************************/ +/** \name Context allocation, initialization, destroying + * + * The purpose of the most initialization functions here is to provide the + * default state values according to the OpenGL specification. + */ +/**********************************************************************/ +/*@{*/ + + +/** + * This is lame. gdb only seems to recognize enum types that are + * actually used somewhere. We want to be able to print/use enum + * values such as TEXTURE_2D_INDEX in gdb. But we don't actually use + * the gl_texture_index type anywhere. Thus, this lame function. + */ +static void +dummy_enum_func(void) +{ + gl_buffer_index bi = BUFFER_FRONT_LEFT; + gl_face_index fi = FACE_POS_X; + gl_frag_attrib fa = FRAG_ATTRIB_WPOS; + gl_frag_result fr = FRAG_RESULT_DEPTH; + gl_texture_index ti = TEXTURE_2D_ARRAY_INDEX; + gl_vert_attrib va = VERT_ATTRIB_POS; + gl_vert_result vr = VERT_RESULT_HPOS; + gl_geom_attrib ga = GEOM_ATTRIB_POSITION; + gl_geom_result gr = GEOM_RESULT_POS; + + (void) bi; + (void) fi; + (void) fa; + (void) fr; + (void) ti; + (void) va; + (void) vr; + (void) ga; + (void) gr; +} + + +/** + * One-time initialization mutex lock. + * + * \sa Used by one_time_init(). + */ +_glthread_DECLARE_STATIC_MUTEX(OneTimeLock); + + + +/** + * Calls all the various one-time-init functions in Mesa. + * + * While holding a global mutex lock, calls several initialization functions, + * and sets the glapi callbacks if the \c MESA_DEBUG environment variable is + * defined. + * + * \sa _math_init(). + */ +static void +one_time_init( struct gl_context *ctx ) +{ + static GLbitfield api_init_mask = 0x0; + + _glthread_LOCK_MUTEX(OneTimeLock); + + /* truly one-time init */ + if (!api_init_mask) { + GLuint i; + + /* do some implementation tests */ + assert( sizeof(GLbyte) == 1 ); + assert( sizeof(GLubyte) == 1 ); + assert( sizeof(GLshort) == 2 ); + assert( sizeof(GLushort) == 2 ); + assert( sizeof(GLint) == 4 ); + assert( sizeof(GLuint) == 4 ); + + _mesa_get_cpu_features(); + + _mesa_init_sqrt_table(); + + /* context dependence is never a one-time thing... */ + _mesa_init_get_hash(ctx); + + for (i = 0; i < 256; i++) { + _mesa_ubyte_to_float_color_tab[i] = (float) i / 255.0F; + } + +#if defined(DEBUG) && defined(__DATE__) && defined(__TIME__) + if (MESA_VERBOSE != 0) { + _mesa_debug(ctx, "Mesa %s DEBUG build %s %s\n", + MESA_VERSION_STRING, __DATE__, __TIME__); + } +#endif + +#ifdef DEBUG + _mesa_test_formats(); +#endif + } + + /* per-API one-time init */ + if (!(api_init_mask & (1 << ctx->API))) { + /* + * This is fine as ES does not use the remap table, but it may not be + * future-proof. We cannot always initialize the remap table because + * when an app is linked to libGLES*, there are not enough dynamic + * entries. + */ + if (ctx->API == API_OPENGL) + _mesa_init_remap_table(); + } + + api_init_mask |= 1 << ctx->API; + + _glthread_UNLOCK_MUTEX(OneTimeLock); + + /* Hopefully atexit() is widely available. If not, we may need some + * #ifdef tests here. + */ + atexit(_mesa_destroy_shader_compiler); + + dummy_enum_func(); +} + + +/** + * Initialize fields of gl_current_attrib (aka ctx->Current.*) + */ +static void +_mesa_init_current(struct gl_context *ctx) +{ + GLuint i; + + /* Init all to (0,0,0,1) */ + for (i = 0; i < Elements(ctx->Current.Attrib); i++) { + ASSIGN_4V( ctx->Current.Attrib[i], 0.0, 0.0, 0.0, 1.0 ); + } + + /* redo special cases: */ + ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_WEIGHT], 1.0, 0.0, 0.0, 0.0 ); + ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_NORMAL], 0.0, 0.0, 1.0, 1.0 ); + ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR0], 1.0, 1.0, 1.0, 1.0 ); + ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR1], 0.0, 0.0, 0.0, 1.0 ); + ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR_INDEX], 1.0, 0.0, 0.0, 1.0 ); + ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG], 1.0, 0.0, 0.0, 1.0 ); +} + + +/** + * Init vertex/fragment/geometry program limits. + * Important: drivers should override these with actual limits. + */ +static void +init_program_limits(GLenum type, struct gl_program_constants *prog) +{ + prog->MaxInstructions = MAX_PROGRAM_INSTRUCTIONS; + prog->MaxAluInstructions = MAX_PROGRAM_INSTRUCTIONS; + prog->MaxTexInstructions = MAX_PROGRAM_INSTRUCTIONS; + prog->MaxTexIndirections = MAX_PROGRAM_INSTRUCTIONS; + prog->MaxTemps = MAX_PROGRAM_TEMPS; + prog->MaxEnvParams = MAX_PROGRAM_ENV_PARAMS; + prog->MaxLocalParams = MAX_PROGRAM_LOCAL_PARAMS; + prog->MaxAddressOffset = MAX_PROGRAM_LOCAL_PARAMS; + + switch (type) { + case GL_VERTEX_PROGRAM_ARB: + prog->MaxParameters = MAX_VERTEX_PROGRAM_PARAMS; + prog->MaxAttribs = MAX_NV_VERTEX_PROGRAM_INPUTS; + prog->MaxAddressRegs = MAX_VERTEX_PROGRAM_ADDRESS_REGS; + prog->MaxUniformComponents = 4 * MAX_UNIFORMS; + break; + case GL_FRAGMENT_PROGRAM_ARB: + prog->MaxParameters = MAX_NV_FRAGMENT_PROGRAM_PARAMS; + prog->MaxAttribs = MAX_NV_FRAGMENT_PROGRAM_INPUTS; + prog->MaxAddressRegs = MAX_FRAGMENT_PROGRAM_ADDRESS_REGS; + prog->MaxUniformComponents = 4 * MAX_UNIFORMS; + break; + case MESA_GEOMETRY_PROGRAM: + prog->MaxParameters = MAX_NV_VERTEX_PROGRAM_PARAMS; + prog->MaxAttribs = MAX_NV_VERTEX_PROGRAM_INPUTS; + prog->MaxAddressRegs = MAX_VERTEX_PROGRAM_ADDRESS_REGS; + prog->MaxUniformComponents = MAX_GEOMETRY_UNIFORM_COMPONENTS; + break; + default: + assert(0 && "Bad program type in init_program_limits()"); + } + + /* Set the native limits to zero. This implies that there is no native + * support for shaders. Let the drivers fill in the actual values. + */ + prog->MaxNativeInstructions = 0; + prog->MaxNativeAluInstructions = 0; + prog->MaxNativeTexInstructions = 0; + prog->MaxNativeTexIndirections = 0; + prog->MaxNativeAttribs = 0; + prog->MaxNativeTemps = 0; + prog->MaxNativeAddressRegs = 0; + prog->MaxNativeParameters = 0; + + /* Set GLSL datatype range/precision info assuming IEEE float values. + * Drivers should override these defaults as needed. + */ + prog->MediumFloat.RangeMin = 127; + prog->MediumFloat.RangeMax = 127; + prog->MediumFloat.Precision = 23; + prog->LowFloat = prog->HighFloat = prog->MediumFloat; + + /* Assume ints are stored as floats for now, since this is the least-common + * denominator. The OpenGL ES spec implies (page 132) that the precision + * of integer types should be 0. Practically speaking, IEEE + * single-precision floating point values can only store integers in the + * range [-0x01000000, 0x01000000] without loss of precision. + */ + prog->MediumInt.RangeMin = 24; + prog->MediumInt.RangeMax = 24; + prog->MediumInt.Precision = 0; + prog->LowInt = prog->HighInt = prog->MediumInt; +} + + +/** + * Initialize fields of gl_constants (aka ctx->Const.*). + * Use defaults from config.h. The device drivers will often override + * some of these values (such as number of texture units). + */ +static void +_mesa_init_constants(struct gl_context *ctx) +{ + assert(ctx); + + /* Constants, may be overriden (usually only reduced) by device drivers */ + ctx->Const.MaxTextureMbytes = MAX_TEXTURE_MBYTES; + ctx->Const.MaxTextureLevels = MAX_TEXTURE_LEVELS; + ctx->Const.Max3DTextureLevels = MAX_3D_TEXTURE_LEVELS; + ctx->Const.MaxCubeTextureLevels = MAX_CUBE_TEXTURE_LEVELS; + ctx->Const.MaxTextureRectSize = MAX_TEXTURE_RECT_SIZE; + ctx->Const.MaxArrayTextureLayers = MAX_ARRAY_TEXTURE_LAYERS; + ctx->Const.MaxTextureCoordUnits = MAX_TEXTURE_COORD_UNITS; + ctx->Const.MaxTextureImageUnits = MAX_TEXTURE_IMAGE_UNITS; + ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureCoordUnits, + ctx->Const.MaxTextureImageUnits); + ctx->Const.MaxTextureMaxAnisotropy = MAX_TEXTURE_MAX_ANISOTROPY; + ctx->Const.MaxTextureLodBias = MAX_TEXTURE_LOD_BIAS; + ctx->Const.MaxArrayLockSize = MAX_ARRAY_LOCK_SIZE; + ctx->Const.SubPixelBits = SUB_PIXEL_BITS; + ctx->Const.MinPointSize = MIN_POINT_SIZE; + ctx->Const.MaxPointSize = MAX_POINT_SIZE; + ctx->Const.MinPointSizeAA = MIN_POINT_SIZE; + ctx->Const.MaxPointSizeAA = MAX_POINT_SIZE; + ctx->Const.PointSizeGranularity = (GLfloat) POINT_SIZE_GRANULARITY; + ctx->Const.MinLineWidth = MIN_LINE_WIDTH; + ctx->Const.MaxLineWidth = MAX_LINE_WIDTH; + ctx->Const.MinLineWidthAA = MIN_LINE_WIDTH; + ctx->Const.MaxLineWidthAA = MAX_LINE_WIDTH; + ctx->Const.LineWidthGranularity = (GLfloat) LINE_WIDTH_GRANULARITY; + ctx->Const.MaxColorTableSize = MAX_COLOR_TABLE_SIZE; + ctx->Const.MaxClipPlanes = MAX_CLIP_PLANES; + ctx->Const.MaxLights = MAX_LIGHTS; + ctx->Const.MaxShininess = 128.0; + ctx->Const.MaxSpotExponent = 128.0; + ctx->Const.MaxViewportWidth = MAX_WIDTH; + ctx->Const.MaxViewportHeight = MAX_HEIGHT; +#if FEATURE_ARB_vertex_program + init_program_limits(GL_VERTEX_PROGRAM_ARB, &ctx->Const.VertexProgram); +#endif +#if FEATURE_ARB_fragment_program + init_program_limits(GL_FRAGMENT_PROGRAM_ARB, &ctx->Const.FragmentProgram); +#endif +#if FEATURE_ARB_geometry_shader4 + init_program_limits(MESA_GEOMETRY_PROGRAM, &ctx->Const.GeometryProgram); +#endif + ctx->Const.MaxProgramMatrices = MAX_PROGRAM_MATRICES; + ctx->Const.MaxProgramMatrixStackDepth = MAX_PROGRAM_MATRIX_STACK_DEPTH; + + /* CheckArrayBounds is overriden by drivers/x11 for X server */ + ctx->Const.CheckArrayBounds = GL_FALSE; + + /* GL_ARB_draw_buffers */ + ctx->Const.MaxDrawBuffers = MAX_DRAW_BUFFERS; + +#if FEATURE_EXT_framebuffer_object + ctx->Const.MaxColorAttachments = MAX_COLOR_ATTACHMENTS; + ctx->Const.MaxRenderbufferSize = MAX_WIDTH; +#endif + +#if FEATURE_ARB_vertex_shader + ctx->Const.MaxVertexTextureImageUnits = MAX_VERTEX_TEXTURE_IMAGE_UNITS; + ctx->Const.MaxCombinedTextureImageUnits = MAX_COMBINED_TEXTURE_IMAGE_UNITS; + ctx->Const.MaxVarying = MAX_VARYING; +#endif +#if FEATURE_ARB_geometry_shader4 + ctx->Const.MaxGeometryTextureImageUnits = MAX_GEOMETRY_TEXTURE_IMAGE_UNITS; + ctx->Const.MaxVertexVaryingComponents = MAX_VERTEX_VARYING_COMPONENTS; + ctx->Const.MaxGeometryVaryingComponents = MAX_GEOMETRY_VARYING_COMPONENTS; + ctx->Const.MaxGeometryOutputVertices = MAX_GEOMETRY_OUTPUT_VERTICES; + ctx->Const.MaxGeometryTotalOutputComponents = MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS; +#endif + + /* Shading language version */ + if (ctx->API == API_OPENGL) { + ctx->Const.GLSLVersion = 120; + } + else if (ctx->API == API_OPENGLES2) { + ctx->Const.GLSLVersion = 100; + } + else if (ctx->API == API_OPENGLES) { + ctx->Const.GLSLVersion = 0; /* GLSL not supported */ + } + + /* GL_ARB_framebuffer_object */ + ctx->Const.MaxSamples = 0; + + /* GL_ARB_sync */ + ctx->Const.MaxServerWaitTimeout = (GLuint64) ~0; + + /* GL_ATI_envmap_bumpmap */ + ctx->Const.SupportedBumpUnits = SUPPORTED_ATI_BUMP_UNITS; + + /* GL_EXT_provoking_vertex */ + ctx->Const.QuadsFollowProvokingVertexConvention = GL_TRUE; + + /* GL_EXT_transform_feedback */ + ctx->Const.MaxTransformFeedbackSeparateAttribs = MAX_FEEDBACK_ATTRIBS; + ctx->Const.MaxTransformFeedbackSeparateComponents = 4 * MAX_FEEDBACK_ATTRIBS; + ctx->Const.MaxTransformFeedbackInterleavedComponents = 4 * MAX_FEEDBACK_ATTRIBS; + + /* GL 3.2: hard-coded for now: */ + ctx->Const.ProfileMask = GL_CONTEXT_COMPATIBILITY_PROFILE_BIT; + + /** GL_EXT_gpu_shader4 */ + ctx->Const.MinProgramTexelOffset = -8; + ctx->Const.MaxProgramTexelOffset = 7; +} + + +/** + * Do some sanity checks on the limits/constants for the given context. + * Only called the first time a context is bound. + */ +static void +check_context_limits(struct gl_context *ctx) +{ + /* check that we don't exceed the size of various bitfields */ + assert(VERT_RESULT_MAX <= + (8 * sizeof(ctx->VertexProgram._Current->Base.OutputsWritten))); + assert(FRAG_ATTRIB_MAX <= + (8 * sizeof(ctx->FragmentProgram._Current->Base.InputsRead))); + + assert(MAX_COMBINED_TEXTURE_IMAGE_UNITS <= 8 * sizeof(GLbitfield)); + + /* shader-related checks */ + assert(ctx->Const.FragmentProgram.MaxLocalParams <= MAX_PROGRAM_LOCAL_PARAMS); + assert(ctx->Const.VertexProgram.MaxLocalParams <= MAX_PROGRAM_LOCAL_PARAMS); + + assert(MAX_NV_FRAGMENT_PROGRAM_TEMPS <= MAX_PROGRAM_TEMPS); + assert(MAX_NV_VERTEX_PROGRAM_TEMPS <= MAX_PROGRAM_TEMPS); + assert(MAX_NV_VERTEX_PROGRAM_INPUTS <= VERT_ATTRIB_MAX); + assert(MAX_NV_VERTEX_PROGRAM_OUTPUTS <= VERT_RESULT_MAX); + + /* Texture unit checks */ + assert(ctx->Const.MaxTextureImageUnits > 0); + assert(ctx->Const.MaxTextureImageUnits <= MAX_TEXTURE_IMAGE_UNITS); + assert(ctx->Const.MaxTextureCoordUnits > 0); + assert(ctx->Const.MaxTextureCoordUnits <= MAX_TEXTURE_COORD_UNITS); + assert(ctx->Const.MaxTextureUnits > 0); + assert(ctx->Const.MaxTextureUnits <= MAX_TEXTURE_IMAGE_UNITS); + assert(ctx->Const.MaxTextureUnits <= MAX_TEXTURE_COORD_UNITS); + assert(ctx->Const.MaxTextureUnits == MIN2(ctx->Const.MaxTextureImageUnits, + ctx->Const.MaxTextureCoordUnits)); + assert(ctx->Const.MaxCombinedTextureImageUnits > 0); + assert(ctx->Const.MaxCombinedTextureImageUnits <= MAX_COMBINED_TEXTURE_IMAGE_UNITS); + assert(ctx->Const.MaxTextureCoordUnits <= MAX_COMBINED_TEXTURE_IMAGE_UNITS); + /* number of coord units cannot be greater than number of image units */ + assert(ctx->Const.MaxTextureCoordUnits <= ctx->Const.MaxTextureImageUnits); + + + /* Texture size checks */ + assert(ctx->Const.MaxTextureLevels <= MAX_TEXTURE_LEVELS); + assert(ctx->Const.Max3DTextureLevels <= MAX_3D_TEXTURE_LEVELS); + assert(ctx->Const.MaxCubeTextureLevels <= MAX_CUBE_TEXTURE_LEVELS); + assert(ctx->Const.MaxTextureRectSize <= MAX_TEXTURE_RECT_SIZE); + + /* make sure largest texture image is <= MAX_WIDTH in size */ + assert((1 << (ctx->Const.MaxTextureLevels - 1)) <= MAX_WIDTH); + assert((1 << (ctx->Const.MaxCubeTextureLevels - 1)) <= MAX_WIDTH); + assert((1 << (ctx->Const.Max3DTextureLevels - 1)) <= MAX_WIDTH); + + /* Texture level checks */ + assert(MAX_TEXTURE_LEVELS >= MAX_3D_TEXTURE_LEVELS); + assert(MAX_TEXTURE_LEVELS >= MAX_CUBE_TEXTURE_LEVELS); + + /* Max texture size should be <= max viewport size (render to texture) */ + assert((1 << (MAX_TEXTURE_LEVELS - 1)) <= MAX_WIDTH); + + assert(ctx->Const.MaxViewportWidth <= MAX_WIDTH); + assert(ctx->Const.MaxViewportHeight <= MAX_WIDTH); + + assert(ctx->Const.MaxDrawBuffers <= MAX_DRAW_BUFFERS); + + /* if this fails, add more enum values to gl_buffer_index */ + assert(BUFFER_COLOR0 + MAX_DRAW_BUFFERS <= BUFFER_COUNT); + + /* XXX probably add more tests */ +} + + +/** + * Initialize the attribute groups in a GL context. + * + * \param ctx GL context. + * + * Initializes all the attributes, calling the respective init* + * functions for the more complex data structures. + */ +static GLboolean +init_attrib_groups(struct gl_context *ctx) +{ + assert(ctx); + + /* Constants */ + _mesa_init_constants( ctx ); + + /* Extensions */ + _mesa_init_extensions( ctx ); + + /* Attribute Groups */ + _mesa_init_accum( ctx ); + _mesa_init_attrib( ctx ); + _mesa_init_buffer_objects( ctx ); + _mesa_init_color( ctx ); + _mesa_init_current( ctx ); + _mesa_init_depth( ctx ); + _mesa_init_debug( ctx ); + _mesa_init_display_list( ctx ); + _mesa_init_eval( ctx ); + _mesa_init_fbobjects( ctx ); + _mesa_init_feedback( ctx ); + _mesa_init_fog( ctx ); + _mesa_init_hint( ctx ); + _mesa_init_line( ctx ); + _mesa_init_lighting( ctx ); + _mesa_init_matrix( ctx ); + _mesa_init_multisample( ctx ); + _mesa_init_pixel( ctx ); + _mesa_init_pixelstore( ctx ); + _mesa_init_point( ctx ); + _mesa_init_polygon( ctx ); + _mesa_init_program( ctx ); + _mesa_init_queryobj( ctx ); + _mesa_init_sync( ctx ); + _mesa_init_rastpos( ctx ); + _mesa_init_scissor( ctx ); + _mesa_init_shader_state( ctx ); + _mesa_init_stencil( ctx ); + _mesa_init_transform( ctx ); + _mesa_init_transform_feedback( ctx ); + _mesa_init_varray( ctx ); + _mesa_init_viewport( ctx ); + + if (!_mesa_init_texture( ctx )) + return GL_FALSE; + + _mesa_init_texture_s3tc( ctx ); + + /* Miscellaneous */ + ctx->NewState = _NEW_ALL; + ctx->ErrorValue = (GLenum) GL_NO_ERROR; + ctx->varying_vp_inputs = ~0; + + return GL_TRUE; +} + + +/** + * Update default objects in a GL context with respect to shared state. + * + * \param ctx GL context. + * + * Removes references to old default objects, (texture objects, program + * objects, etc.) and changes to reference those from the current shared + * state. + */ +static GLboolean +update_default_objects(struct gl_context *ctx) +{ + assert(ctx); + + _mesa_update_default_objects_program(ctx); + _mesa_update_default_objects_texture(ctx); + _mesa_update_default_objects_buffer_objects(ctx); + + return GL_TRUE; +} + + +/** + * This is the default function we plug into all dispatch table slots + * This helps prevents a segfault when someone calls a GL function without + * first checking if the extension's supported. + */ +static int +generic_nop(void) +{ + _mesa_warning(NULL, "User called no-op dispatch function (an unsupported extension function?)"); + return 0; +} + + +/** + * Allocate and initialize a new dispatch table. + */ +struct _glapi_table * +_mesa_alloc_dispatch_table(int size) +{ + /* Find the larger of Mesa's dispatch table and libGL's dispatch table. + * In practice, this'll be the same for stand-alone Mesa. But for DRI + * Mesa we do this to accomodate different versions of libGL and various + * DRI drivers. + */ + GLint numEntries = MAX2(_glapi_get_dispatch_table_size(), _gloffset_COUNT); + struct _glapi_table *table; + + /* should never happen, but just in case */ + numEntries = MAX2(numEntries, size); + + table = (struct _glapi_table *) malloc(numEntries * sizeof(_glapi_proc)); + if (table) { + _glapi_proc *entry = (_glapi_proc *) table; + GLint i; + for (i = 0; i < numEntries; i++) { + entry[i] = (_glapi_proc) generic_nop; + } + } + return table; +} + + +/** + * Initialize a struct gl_context struct (rendering context). + * + * This includes allocating all the other structs and arrays which hang off of + * the context by pointers. + * Note that the driver needs to pass in its dd_function_table here since + * we need to at least call driverFunctions->NewTextureObject to create the + * default texture objects. + * + * Called by _mesa_create_context(). + * + * Performs the imports and exports callback tables initialization, and + * miscellaneous one-time initializations. If no shared context is supplied one + * is allocated, and increase its reference count. Setups the GL API dispatch + * tables. Initialize the TNL module. Sets the maximum Z buffer depth. + * Finally queries the \c MESA_DEBUG and \c MESA_VERBOSE environment variables + * for debug flags. + * + * \param ctx the context to initialize + * \param api the GL API type to create the context for + * \param visual describes the visual attributes for this context + * \param share_list points to context to share textures, display lists, + * etc with, or NULL + * \param driverFunctions table of device driver functions for this context + * to use + * \param driverContext pointer to driver-specific context data + */ +GLboolean +_mesa_initialize_context(struct gl_context *ctx, + gl_api api, + const struct gl_config *visual, + struct gl_context *share_list, + const struct dd_function_table *driverFunctions, + void *driverContext) +{ + struct gl_shared_state *shared; + int i; + + /*ASSERT(driverContext);*/ + assert(driverFunctions->NewTextureObject); + assert(driverFunctions->FreeTexImageData); + + ctx->API = api; + ctx->Visual = *visual; + ctx->DrawBuffer = NULL; + ctx->ReadBuffer = NULL; + ctx->WinSysDrawBuffer = NULL; + ctx->WinSysReadBuffer = NULL; + + /* misc one-time initializations */ + one_time_init(ctx); + + /* Plug in driver functions and context pointer here. + * This is important because when we call alloc_shared_state() below + * we'll call ctx->Driver.NewTextureObject() to create the default + * textures. + */ + ctx->Driver = *driverFunctions; + ctx->DriverCtx = driverContext; + + if (share_list) { + /* share state with another context */ + shared = share_list->Shared; + } + else { + /* allocate new, unshared state */ + shared = _mesa_alloc_shared_state(ctx); + if (!shared) + return GL_FALSE; + } + + _glthread_LOCK_MUTEX(shared->Mutex); + ctx->Shared = shared; + shared->RefCount++; + _glthread_UNLOCK_MUTEX(shared->Mutex); + + if (!init_attrib_groups( ctx )) { + _mesa_release_shared_state(ctx, ctx->Shared); + return GL_FALSE; + } + +#if FEATURE_dispatch + /* setup the API dispatch tables */ + switch (ctx->API) { +#if FEATURE_GL + case API_OPENGL: + ctx->Exec = _mesa_create_exec_table(); + break; +#endif +#if FEATURE_ES1 + case API_OPENGLES: + ctx->Exec = _mesa_create_exec_table_es1(); + break; +#endif +#if FEATURE_ES2 + case API_OPENGLES2: + ctx->Exec = _mesa_create_exec_table_es2(); + break; +#endif + default: + _mesa_problem(ctx, "unknown or unsupported API"); + break; + } + + if (!ctx->Exec) { + _mesa_release_shared_state(ctx, ctx->Shared); + return GL_FALSE; + } +#endif + ctx->CurrentDispatch = ctx->Exec; + + ctx->FragmentProgram._MaintainTexEnvProgram + = (_mesa_getenv("MESA_TEX_PROG") != NULL); + + ctx->VertexProgram._MaintainTnlProgram + = (_mesa_getenv("MESA_TNL_PROG") != NULL); + if (ctx->VertexProgram._MaintainTnlProgram) { + /* this is required... */ + ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE; + } + + /* Mesa core handles all the formats that mesa core knows about. + * Drivers will want to override this list with just the formats + * they can handle, and confirm that appropriate fallbacks exist in + * _mesa_choose_tex_format(). + */ + memset(&ctx->TextureFormatSupported, GL_TRUE, + sizeof(ctx->TextureFormatSupported)); + + switch (ctx->API) { + case API_OPENGL: +#if FEATURE_dlist + ctx->Save = _mesa_create_save_table(); + if (!ctx->Save) { + _mesa_release_shared_state(ctx, ctx->Shared); + free(ctx->Exec); + return GL_FALSE; + } + + _mesa_install_save_vtxfmt( ctx, &ctx->ListState.ListVtxfmt ); +#endif + break; + case API_OPENGLES: + /** + * GL_OES_texture_cube_map says + * "Initially all texture generation modes are set to REFLECTION_MAP_OES" + */ + for (i = 0; i < MAX_TEXTURE_UNITS; i++) { + struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i]; + texUnit->GenS.Mode = GL_REFLECTION_MAP_NV; + texUnit->GenT.Mode = GL_REFLECTION_MAP_NV; + texUnit->GenR.Mode = GL_REFLECTION_MAP_NV; + texUnit->GenS._ModeBit = TEXGEN_REFLECTION_MAP_NV; + texUnit->GenT._ModeBit = TEXGEN_REFLECTION_MAP_NV; + texUnit->GenR._ModeBit = TEXGEN_REFLECTION_MAP_NV; + } + break; + case API_OPENGLES2: + ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE; + ctx->VertexProgram._MaintainTnlProgram = GL_TRUE; + ctx->Point.PointSprite = GL_TRUE; /* always on for ES 2.x */ + break; + } + + ctx->FirstTimeCurrent = GL_TRUE; + + return GL_TRUE; +} + + +/** + * Allocate and initialize a struct gl_context structure. + * Note that the driver needs to pass in its dd_function_table here since + * we need to at least call driverFunctions->NewTextureObject to initialize + * the rendering context. + * + * \param api the GL API type to create the context for + * \param visual a struct gl_config pointer (we copy the struct contents) + * \param share_list another context to share display lists with or NULL + * \param driverFunctions points to the dd_function_table into which the + * driver has plugged in all its special functions. + * \param driverContext points to the device driver's private context state + * + * \return pointer to a new __struct gl_contextRec or NULL if error. + */ +struct gl_context * +_mesa_create_context(gl_api api, + const struct gl_config *visual, + struct gl_context *share_list, + const struct dd_function_table *driverFunctions, + void *driverContext) +{ + struct gl_context *ctx; + + ASSERT(visual); + /*ASSERT(driverContext);*/ + + ctx = (struct gl_context *) calloc(1, sizeof(struct gl_context)); + if (!ctx) + return NULL; + + if (_mesa_initialize_context(ctx, api, visual, share_list, + driverFunctions, driverContext)) { + return ctx; + } + else { + free(ctx); + return NULL; + } +} + + +/** + * Free the data associated with the given context. + * + * But doesn't free the struct gl_context struct itself. + * + * \sa _mesa_initialize_context() and init_attrib_groups(). + */ +void +_mesa_free_context_data( struct gl_context *ctx ) +{ + if (!_mesa_get_current_context()){ + /* No current context, but we may need one in order to delete + * texture objs, etc. So temporarily bind the context now. + */ + _mesa_make_current(ctx, NULL, NULL); + } + + /* unreference WinSysDraw/Read buffers */ + _mesa_reference_framebuffer(&ctx->WinSysDrawBuffer, NULL); + _mesa_reference_framebuffer(&ctx->WinSysReadBuffer, NULL); + _mesa_reference_framebuffer(&ctx->DrawBuffer, NULL); + _mesa_reference_framebuffer(&ctx->ReadBuffer, NULL); + + _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, NULL); + _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL); + _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram, NULL); + + _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, NULL); + _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL); + _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram, NULL); + + _mesa_free_attrib_data(ctx); + _mesa_free_buffer_objects(ctx); + _mesa_free_lighting_data( ctx ); + _mesa_free_eval_data( ctx ); + _mesa_free_texture_data( ctx ); + _mesa_free_matrix_data( ctx ); + _mesa_free_viewport_data( ctx ); + _mesa_free_program_data(ctx); + _mesa_free_shader_state(ctx); + _mesa_free_queryobj_data(ctx); + _mesa_free_sync_data(ctx); + _mesa_free_varray_data(ctx); + _mesa_free_transform_feedback(ctx); + + _mesa_delete_array_object(ctx, ctx->Array.DefaultArrayObj); + +#if FEATURE_ARB_pixel_buffer_object + _mesa_reference_buffer_object(ctx, &ctx->Pack.BufferObj, NULL); + _mesa_reference_buffer_object(ctx, &ctx->Unpack.BufferObj, NULL); + _mesa_reference_buffer_object(ctx, &ctx->DefaultPacking.BufferObj, NULL); +#endif + +#if FEATURE_ARB_vertex_buffer_object + _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj, NULL); + _mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj, NULL); +#endif + + /* free dispatch tables */ + free(ctx->Exec); + free(ctx->Save); + + /* Shared context state (display lists, textures, etc) */ + _mesa_release_shared_state( ctx, ctx->Shared ); + + /* needs to be after freeing shared state */ + _mesa_free_display_list_data(ctx); + + if (ctx->Extensions.String) + free((void *) ctx->Extensions.String); + + if (ctx->VersionString) + free(ctx->VersionString); + + /* unbind the context if it's currently bound */ + if (ctx == _mesa_get_current_context()) { + _mesa_make_current(NULL, NULL, NULL); + } +} + + +/** + * Destroy a struct gl_context structure. + * + * \param ctx GL context. + * + * Calls _mesa_free_context_data() and frees the gl_context object itself. + */ +void +_mesa_destroy_context( struct gl_context *ctx ) +{ + if (ctx) { + _mesa_free_context_data(ctx); + free( (void *) ctx ); + } +} + + +#if _HAVE_FULL_GL +/** + * Copy attribute groups from one context to another. + * + * \param src source context + * \param dst destination context + * \param mask bitwise OR of GL_*_BIT flags + * + * According to the bits specified in \p mask, copies the corresponding + * attributes from \p src into \p dst. For many of the attributes a simple \c + * memcpy is not enough due to the existence of internal pointers in their data + * structures. + */ +void +_mesa_copy_context( const struct gl_context *src, struct gl_context *dst, GLuint mask ) +{ + if (mask & GL_ACCUM_BUFFER_BIT) { + /* OK to memcpy */ + dst->Accum = src->Accum; + } + if (mask & GL_COLOR_BUFFER_BIT) { + /* OK to memcpy */ + dst->Color = src->Color; + } + if (mask & GL_CURRENT_BIT) { + /* OK to memcpy */ + dst->Current = src->Current; + } + if (mask & GL_DEPTH_BUFFER_BIT) { + /* OK to memcpy */ + dst->Depth = src->Depth; + } + if (mask & GL_ENABLE_BIT) { + /* no op */ + } + if (mask & GL_EVAL_BIT) { + /* OK to memcpy */ + dst->Eval = src->Eval; + } + if (mask & GL_FOG_BIT) { + /* OK to memcpy */ + dst->Fog = src->Fog; + } + if (mask & GL_HINT_BIT) { + /* OK to memcpy */ + dst->Hint = src->Hint; + } + if (mask & GL_LIGHTING_BIT) { + GLuint i; + /* begin with memcpy */ + dst->Light = src->Light; + /* fixup linked lists to prevent pointer insanity */ + make_empty_list( &(dst->Light.EnabledList) ); + for (i = 0; i < MAX_LIGHTS; i++) { + if (dst->Light.Light[i].Enabled) { + insert_at_tail(&(dst->Light.EnabledList), &(dst->Light.Light[i])); + } + } + } + if (mask & GL_LINE_BIT) { + /* OK to memcpy */ + dst->Line = src->Line; + } + if (mask & GL_LIST_BIT) { + /* OK to memcpy */ + dst->List = src->List; + } + if (mask & GL_PIXEL_MODE_BIT) { + /* OK to memcpy */ + dst->Pixel = src->Pixel; + } + if (mask & GL_POINT_BIT) { + /* OK to memcpy */ + dst->Point = src->Point; + } + if (mask & GL_POLYGON_BIT) { + /* OK to memcpy */ + dst->Polygon = src->Polygon; + } + if (mask & GL_POLYGON_STIPPLE_BIT) { + /* Use loop instead of memcpy due to problem with Portland Group's + * C compiler. Reported by John Stone. + */ + GLuint i; + for (i = 0; i < 32; i++) { + dst->PolygonStipple[i] = src->PolygonStipple[i]; + } + } + if (mask & GL_SCISSOR_BIT) { + /* OK to memcpy */ + dst->Scissor = src->Scissor; + } + if (mask & GL_STENCIL_BUFFER_BIT) { + /* OK to memcpy */ + dst->Stencil = src->Stencil; + } + if (mask & GL_TEXTURE_BIT) { + /* Cannot memcpy because of pointers */ + _mesa_copy_texture_state(src, dst); + } + if (mask & GL_TRANSFORM_BIT) { + /* OK to memcpy */ + dst->Transform = src->Transform; + } + if (mask & GL_VIEWPORT_BIT) { + /* Cannot use memcpy, because of pointers in GLmatrix _WindowMap */ + dst->Viewport.X = src->Viewport.X; + dst->Viewport.Y = src->Viewport.Y; + dst->Viewport.Width = src->Viewport.Width; + dst->Viewport.Height = src->Viewport.Height; + dst->Viewport.Near = src->Viewport.Near; + dst->Viewport.Far = src->Viewport.Far; + _math_matrix_copy(&dst->Viewport._WindowMap, &src->Viewport._WindowMap); + } + + /* XXX FIXME: Call callbacks? + */ + dst->NewState = _NEW_ALL; +} +#endif + + +/** + * Check if the given context can render into the given framebuffer + * by checking visual attributes. + * + * Most of these tests could go away because Mesa is now pretty flexible + * in terms of mixing rendering contexts with framebuffers. As long + * as RGB vs. CI mode agree, we're probably good. + * + * \return GL_TRUE if compatible, GL_FALSE otherwise. + */ +static GLboolean +check_compatible(const struct gl_context *ctx, + const struct gl_framebuffer *buffer) +{ + const struct gl_config *ctxvis = &ctx->Visual; + const struct gl_config *bufvis = &buffer->Visual; + + if (buffer == _mesa_get_incomplete_framebuffer()) + return GL_TRUE; + +#if 0 + /* disabling this fixes the fgl_glxgears pbuffer demo */ + if (ctxvis->doubleBufferMode && !bufvis->doubleBufferMode) + return GL_FALSE; +#endif + if (ctxvis->stereoMode && !bufvis->stereoMode) + return GL_FALSE; + if (ctxvis->haveAccumBuffer && !bufvis->haveAccumBuffer) + return GL_FALSE; + if (ctxvis->haveDepthBuffer && !bufvis->haveDepthBuffer) + return GL_FALSE; + if (ctxvis->haveStencilBuffer && !bufvis->haveStencilBuffer) + return GL_FALSE; + if (ctxvis->redMask && ctxvis->redMask != bufvis->redMask) + return GL_FALSE; + if (ctxvis->greenMask && ctxvis->greenMask != bufvis->greenMask) + return GL_FALSE; + if (ctxvis->blueMask && ctxvis->blueMask != bufvis->blueMask) + return GL_FALSE; +#if 0 + /* disabled (see bug 11161) */ + if (ctxvis->depthBits && ctxvis->depthBits != bufvis->depthBits) + return GL_FALSE; +#endif + if (ctxvis->stencilBits && ctxvis->stencilBits != bufvis->stencilBits) + return GL_FALSE; + + return GL_TRUE; +} + + +/** + * Do one-time initialization for the given framebuffer. Specifically, + * ask the driver for the window's current size and update the framebuffer + * object to match. + * Really, the device driver should totally take care of this. + */ +static void +initialize_framebuffer_size(struct gl_context *ctx, struct gl_framebuffer *fb) +{ + GLuint width, height; + if (ctx->Driver.GetBufferSize) { + ctx->Driver.GetBufferSize(fb, &width, &height); + if (ctx->Driver.ResizeBuffers) + ctx->Driver.ResizeBuffers(ctx, fb, width, height); + fb->Initialized = GL_TRUE; + } +} + + +/** + * Check if the viewport/scissor size has not yet been initialized. + * Initialize the size if the given width and height are non-zero. + */ +void +_mesa_check_init_viewport(struct gl_context *ctx, GLuint width, GLuint height) +{ + if (!ctx->ViewportInitialized && width > 0 && height > 0) { + /* Note: set flag here, before calling _mesa_set_viewport(), to prevent + * potential infinite recursion. + */ + ctx->ViewportInitialized = GL_TRUE; + _mesa_set_viewport(ctx, 0, 0, width, height); + _mesa_set_scissor(ctx, 0, 0, width, height); + } +} + + +/** + * Bind the given context to the given drawBuffer and readBuffer and + * make it the current context for the calling thread. + * We'll render into the drawBuffer and read pixels from the + * readBuffer (i.e. glRead/CopyPixels, glCopyTexImage, etc). + * + * We check that the context's and framebuffer's visuals are compatible + * and return immediately if they're not. + * + * \param newCtx the new GL context. If NULL then there will be no current GL + * context. + * \param drawBuffer the drawing framebuffer + * \param readBuffer the reading framebuffer + */ +GLboolean +_mesa_make_current( struct gl_context *newCtx, + struct gl_framebuffer *drawBuffer, + struct gl_framebuffer *readBuffer ) +{ + GET_CURRENT_CONTEXT(curCtx); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(newCtx, "_mesa_make_current()\n"); + + /* Check that the context's and framebuffer's visuals are compatible. + */ + if (newCtx && drawBuffer && newCtx->WinSysDrawBuffer != drawBuffer) { + if (!check_compatible(newCtx, drawBuffer)) { + _mesa_warning(newCtx, + "MakeCurrent: incompatible visuals for context and drawbuffer"); + return GL_FALSE; + } + } + if (newCtx && readBuffer && newCtx->WinSysReadBuffer != readBuffer) { + if (!check_compatible(newCtx, readBuffer)) { + _mesa_warning(newCtx, + "MakeCurrent: incompatible visuals for context and readbuffer"); + return GL_FALSE; + } + } + + if (curCtx && + (curCtx->WinSysDrawBuffer || curCtx->WinSysReadBuffer) && /* make sure this context is valid for flushing */ + curCtx != newCtx) + _mesa_flush(curCtx); + + /* We used to call _glapi_check_multithread() here. Now do it in drivers */ + _glapi_set_context((void *) newCtx); + ASSERT(_mesa_get_current_context() == newCtx); + + if (!newCtx) { + _glapi_set_dispatch(NULL); /* none current */ + } + else { + _glapi_set_dispatch(newCtx->CurrentDispatch); + + if (drawBuffer && readBuffer) { + /* TODO: check if newCtx and buffer's visual match??? */ + + ASSERT(drawBuffer->Name == 0); + ASSERT(readBuffer->Name == 0); + _mesa_reference_framebuffer(&newCtx->WinSysDrawBuffer, drawBuffer); + _mesa_reference_framebuffer(&newCtx->WinSysReadBuffer, readBuffer); + + /* + * Only set the context's Draw/ReadBuffer fields if they're NULL + * or not bound to a user-created FBO. + */ + if (!newCtx->DrawBuffer || newCtx->DrawBuffer->Name == 0) { + /* KW: merge conflict here, revisit. + */ + /* fix up the fb fields - these will end up wrong otherwise + * if the DRIdrawable changes, and everything relies on them. + * This is a bit messy (same as needed in _mesa_BindFramebufferEXT) + */ + unsigned int i; + GLenum buffers[MAX_DRAW_BUFFERS]; + + _mesa_reference_framebuffer(&newCtx->DrawBuffer, drawBuffer); + + for(i = 0; i < newCtx->Const.MaxDrawBuffers; i++) { + buffers[i] = newCtx->Color.DrawBuffer[i]; + } + + _mesa_drawbuffers(newCtx, newCtx->Const.MaxDrawBuffers, + buffers, NULL); + } + if (!newCtx->ReadBuffer || newCtx->ReadBuffer->Name == 0) { + _mesa_reference_framebuffer(&newCtx->ReadBuffer, readBuffer); + } + + /* XXX only set this flag if we're really changing the draw/read + * framebuffer bindings. + */ + newCtx->NewState |= _NEW_BUFFERS; + +#if 1 + /* We want to get rid of these lines: */ + +#if _HAVE_FULL_GL + if (!drawBuffer->Initialized) { + initialize_framebuffer_size(newCtx, drawBuffer); + } + if (readBuffer != drawBuffer && !readBuffer->Initialized) { + initialize_framebuffer_size(newCtx, readBuffer); + } + + _mesa_resizebuffers(newCtx); +#endif + +#else + /* We want the drawBuffer and readBuffer to be initialized by + * the driver. + * This generally means the Width and Height match the actual + * window size and the renderbuffers (both hardware and software + * based) are allocated to match. The later can generally be + * done with a call to _mesa_resize_framebuffer(). + * + * It's theoretically possible for a buffer to have zero width + * or height, but for now, assert check that the driver did what's + * expected of it. + */ + ASSERT(drawBuffer->Width > 0); + ASSERT(drawBuffer->Height > 0); +#endif + + if (drawBuffer) { + _mesa_check_init_viewport(newCtx, + drawBuffer->Width, drawBuffer->Height); + } + } + + if (newCtx->FirstTimeCurrent) { + _mesa_compute_version(newCtx); + + newCtx->Extensions.String = _mesa_make_extension_string(newCtx); + + check_context_limits(newCtx); + + /* We can use this to help debug user's problems. Tell them to set + * the MESA_INFO env variable before running their app. Then the + * first time each context is made current we'll print some useful + * information. + */ + if (_mesa_getenv("MESA_INFO")) { + _mesa_print_info(); + } + + newCtx->FirstTimeCurrent = GL_FALSE; + } + } + + return GL_TRUE; +} + + +/** + * Make context 'ctx' share the display lists, textures and programs + * that are associated with 'ctxToShare'. + * Any display lists, textures or programs associated with 'ctx' will + * be deleted if nobody else is sharing them. + */ +GLboolean +_mesa_share_state(struct gl_context *ctx, struct gl_context *ctxToShare) +{ + if (ctx && ctxToShare && ctx->Shared && ctxToShare->Shared) { + struct gl_shared_state *oldSharedState = ctx->Shared; + + ctx->Shared = ctxToShare->Shared; + + _glthread_LOCK_MUTEX(ctx->Shared->Mutex); + ctx->Shared->RefCount++; + _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); + + update_default_objects(ctx); + + _mesa_release_shared_state(ctx, oldSharedState); + + return GL_TRUE; + } + else { + return GL_FALSE; + } +} + + + +/** + * \return pointer to the current GL context for this thread. + * + * Calls _glapi_get_context(). This isn't the fastest way to get the current + * context. If you need speed, see the #GET_CURRENT_CONTEXT macro in + * context.h. + */ +struct gl_context * +_mesa_get_current_context( void ) +{ + return (struct gl_context *) _glapi_get_context(); +} + + +/** + * Get context's current API dispatch table. + * + * It'll either be the immediate-mode execute dispatcher or the display list + * compile dispatcher. + * + * \param ctx GL context. + * + * \return pointer to dispatch_table. + * + * Simply returns __struct gl_contextRec::CurrentDispatch. + */ +struct _glapi_table * +_mesa_get_dispatch(struct gl_context *ctx) +{ + return ctx->CurrentDispatch; +} + +/*@}*/ + + +/**********************************************************************/ +/** \name Miscellaneous functions */ +/**********************************************************************/ +/*@{*/ + +/** + * Record an error. + * + * \param ctx GL context. + * \param error error code. + * + * Records the given error code and call the driver's dd_function_table::Error + * function if defined. + * + * \sa + * This is called via _mesa_error(). + */ +void +_mesa_record_error(struct gl_context *ctx, GLenum error) +{ + if (!ctx) + return; + + if (ctx->ErrorValue == GL_NO_ERROR) { + ctx->ErrorValue = error; + } + + /* Call device driver's error handler, if any. This is used on the Mac. */ + if (ctx->Driver.Error) { + ctx->Driver.Error(ctx); + } +} + + +/** + * Flush commands and wait for completion. + */ +void +_mesa_finish(struct gl_context *ctx) +{ + FLUSH_CURRENT( ctx, 0 ); + if (ctx->Driver.Finish) { + ctx->Driver.Finish(ctx); + } +} + + +/** + * Flush commands. + */ +void +_mesa_flush(struct gl_context *ctx) +{ + FLUSH_CURRENT( ctx, 0 ); + if (ctx->Driver.Flush) { + ctx->Driver.Flush(ctx); + } +} + + + +/** + * Execute glFinish(). + * + * Calls the #ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH macro and the + * dd_function_table::Finish driver callback, if not NULL. + */ +void GLAPIENTRY +_mesa_Finish(void) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + _mesa_finish(ctx); +} + + +/** + * Execute glFlush(). + * + * Calls the #ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH macro and the + * dd_function_table::Flush driver callback, if not NULL. + */ +void GLAPIENTRY +_mesa_Flush(void) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + _mesa_flush(ctx); +} + + +/** + * Set mvp_with_dp4 flag. If a driver has a preference for DP4 over + * MUL/MAD, or vice versa, call this function to register that. + * Otherwise we default to MUL/MAD. + */ +void +_mesa_set_mvp_with_dp4( struct gl_context *ctx, + GLboolean flag ) +{ + ctx->mvp_with_dp4 = flag; +} + + + +/** + * Prior to drawing anything with glBegin, glDrawArrays, etc. this function + * is called to see if it's valid to render. This involves checking that + * the current shader is valid and the framebuffer is complete. + * If an error is detected it'll be recorded here. + * \return GL_TRUE if OK to render, GL_FALSE if not + */ +GLboolean +_mesa_valid_to_render(struct gl_context *ctx, const char *where) +{ + bool vert_from_glsl_shader = false; + bool geom_from_glsl_shader = false; + bool frag_from_glsl_shader = false; + + /* This depends on having up to date derived state (shaders) */ + if (ctx->NewState) + _mesa_update_state(ctx); + + if (ctx->Shader.CurrentVertexProgram) { + vert_from_glsl_shader = true; + + if (!ctx->Shader.CurrentVertexProgram->LinkStatus) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "%s(shader not linked)", where); + return GL_FALSE; + } +#if 0 /* not normally enabled */ + { + char errMsg[100]; + if (!_mesa_validate_shader_program(ctx, + ctx->Shader.CurrentVertexProgram, + errMsg)) { + _mesa_warning(ctx, "Shader program %u is invalid: %s", + ctx->Shader.CurrentVertexProgram->Name, errMsg); + } + } +#endif + } + + if (ctx->Shader.CurrentGeometryProgram) { + geom_from_glsl_shader = true; + + if (!ctx->Shader.CurrentGeometryProgram->LinkStatus) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "%s(shader not linked)", where); + return GL_FALSE; + } +#if 0 /* not normally enabled */ + { + char errMsg[100]; + if (!_mesa_validate_shader_program(ctx, + ctx->Shader.CurrentGeometryProgram, + errMsg)) { + _mesa_warning(ctx, "Shader program %u is invalid: %s", + ctx->Shader.CurrentGeometryProgram->Name, errMsg); + } + } +#endif + } + + if (ctx->Shader.CurrentFragmentProgram) { + frag_from_glsl_shader = true; + + if (!ctx->Shader.CurrentFragmentProgram->LinkStatus) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "%s(shader not linked)", where); + return GL_FALSE; + } +#if 0 /* not normally enabled */ + { + char errMsg[100]; + if (!_mesa_validate_shader_program(ctx, + ctx->Shader.CurrentFragmentProgram, + errMsg)) { + _mesa_warning(ctx, "Shader program %u is invalid: %s", + ctx->Shader.CurrentFragmentProgram->Name, errMsg); + } + } +#endif + } + + /* Any shader stages that are not supplied by the GLSL shader and have + * assembly shaders enabled must now be validated. + */ + if (!vert_from_glsl_shader + && ctx->VertexProgram.Enabled && !ctx->VertexProgram._Enabled) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "%s(vertex program not valid)", where); + return GL_FALSE; + } + + /* FINISHME: If GL_NV_geometry_program4 is ever supported, the current + * FINISHME: geometry program should validated here. + */ + (void) geom_from_glsl_shader; + + if (!frag_from_glsl_shader) { + if (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "%s(fragment program not valid)", where); + return GL_FALSE; + } + + /* If drawing to integer-valued color buffers, there must be an + * active fragment shader (GL_EXT_texture_integer). + */ + if (ctx->DrawBuffer && ctx->DrawBuffer->_IntegerColor) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "%s(integer format but no fragment shader)", where); + return GL_FALSE; + } + } + + if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { + _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, + "%s(incomplete framebuffer)", where); + return GL_FALSE; + } + +#ifdef DEBUG + if (ctx->Shader.Flags & GLSL_LOG) { + struct gl_shader_program *shProg[MESA_SHADER_TYPES]; + gl_shader_type i; + + shProg[MESA_SHADER_VERTEX] = ctx->Shader.CurrentVertexProgram; + shProg[MESA_SHADER_GEOMETRY] = ctx->Shader.CurrentGeometryProgram; + shProg[MESA_SHADER_FRAGMENT] = ctx->Shader.CurrentFragmentProgram; + + for (i = 0; i < MESA_SHADER_TYPES; i++) { + struct gl_shader *sh; + + if (shProg[i] == NULL || shProg[i]->_Used + || shProg[i]->_LinkedShaders[i] == NULL) + continue; + + /* This is the first time this shader is being used. + * Append shader's constants/uniforms to log file. + * + * The logic is a little odd here. We only want to log data for each + * shader target that will actually be used, and we only want to log + * it once. It's possible to have a program bound to the vertex + * shader target that also supplied a fragment shader. If that + * program isn't also bound to the fragment shader target we don't + * want to log its fragment data. + */ + sh = shProg[i]->_LinkedShaders[i]; + switch (sh->Type) { + case GL_VERTEX_SHADER: + _mesa_append_uniforms_to_file(sh, &shProg[i]->VertexProgram->Base); + break; + + case GL_GEOMETRY_SHADER_ARB: + _mesa_append_uniforms_to_file(sh, + &shProg[i]->GeometryProgram->Base); + break; + + case GL_FRAGMENT_SHADER: + _mesa_append_uniforms_to_file(sh, + &shProg[i]->FragmentProgram->Base); + break; + } + } + + for (i = 0; i < MESA_SHADER_TYPES; i++) { + if (shProg[i] != NULL) + shProg[i]->_Used = GL_TRUE; + } + } +#endif + + return GL_TRUE; +} + + +/*@}*/ diff --git a/mesalib/src/mesa/main/context.h b/mesalib/src/mesa/main/context.h index 4e391dde4..ae4d6f7da 100644 --- a/mesalib/src/mesa/main/context.h +++ b/mesalib/src/mesa/main/context.h @@ -1,313 +1,289 @@ -/* - * Mesa 3-D graphics library - * Version: 6.5.1 - * - * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file context.h - * Mesa context and visual-related functions. - * - * There are three large Mesa data types/classes which are meant to be - * used by device drivers: - * - struct gl_context: this contains the Mesa rendering state - * - struct gl_config: this describes the color buffer (RGB vs. ci), whether or not - * there's a depth buffer, stencil buffer, etc. - * - struct gl_framebuffer: contains pointers to the depth buffer, stencil buffer, - * accum buffer and alpha buffers. - * - * These types should be encapsulated by corresponding device driver - * data types. See xmesa.h and xmesaP.h for an example. - * - * In OOP terms, struct gl_context, struct gl_config, and struct gl_framebuffer are base classes - * which the device driver must derive from. - * - * The following functions create and destroy these data types. - */ - - -#ifndef CONTEXT_H -#define CONTEXT_H - - -#include "imports.h" -#include "mtypes.h" - - -struct _glapi_table; - - -/** \name Visual-related functions */ -/*@{*/ - -extern struct gl_config * -_mesa_create_visual( GLboolean dbFlag, - GLboolean stereoFlag, - GLint redBits, - GLint greenBits, - GLint blueBits, - GLint alphaBits, - GLint depthBits, - GLint stencilBits, - GLint accumRedBits, - GLint accumGreenBits, - GLint accumBlueBits, - GLint accumAlphaBits, - GLint numSamples ); - -extern GLboolean -_mesa_initialize_visual( struct gl_config *v, - GLboolean dbFlag, - GLboolean stereoFlag, - GLint redBits, - GLint greenBits, - GLint blueBits, - GLint alphaBits, - GLint depthBits, - GLint stencilBits, - GLint accumRedBits, - GLint accumGreenBits, - GLint accumBlueBits, - GLint accumAlphaBits, - GLint numSamples ); - -extern void -_mesa_destroy_visual( struct gl_config *vis ); - -/*@}*/ - - -/** \name Context-related functions */ -/*@{*/ - -extern GLboolean -_mesa_initialize_context( struct gl_context *ctx, - gl_api api, - const struct gl_config *visual, - struct gl_context *share_list, - const struct dd_function_table *driverFunctions, - void *driverContext ); - -extern struct gl_context * -_mesa_create_context(gl_api api, - const struct gl_config *visual, - struct gl_context *share_list, - const struct dd_function_table *driverFunctions, - void *driverContext); - -extern void -_mesa_free_context_data( struct gl_context *ctx ); - -extern void -_mesa_destroy_context( struct gl_context *ctx ); - - -extern void -_mesa_copy_context(const struct gl_context *src, struct gl_context *dst, GLuint mask); - - -extern void -_mesa_check_init_viewport(struct gl_context *ctx, GLuint width, GLuint height); - -extern GLboolean -_mesa_make_current( struct gl_context *ctx, struct gl_framebuffer *drawBuffer, - struct gl_framebuffer *readBuffer ); - -extern GLboolean -_mesa_share_state(struct gl_context *ctx, struct gl_context *ctxToShare); - -extern struct gl_context * -_mesa_get_current_context(void); - -/*@}*/ - -extern void -_mesa_init_get_hash(struct gl_context *ctx); - -extern void -_mesa_notifySwapBuffers(struct gl_context *gc); - - -extern struct _glapi_table * -_mesa_get_dispatch(struct gl_context *ctx); - - -void -_mesa_set_mvp_with_dp4( struct gl_context *ctx, - GLboolean flag ); - - -extern GLboolean -_mesa_valid_to_render(struct gl_context *ctx, const char *where); - - - -/** \name Miscellaneous */ -/*@{*/ - -extern void -_mesa_record_error( struct gl_context *ctx, GLenum error ); - - -extern void -_mesa_finish(struct gl_context *ctx); - -extern void -_mesa_flush(struct gl_context *ctx); - - -extern void GLAPIENTRY -_mesa_Finish( void ); - -extern void GLAPIENTRY -_mesa_Flush( void ); - -/*@}*/ - - -/** - * \name Macros for flushing buffered rendering commands before state changes, - * checking if inside glBegin/glEnd, etc. - */ -/*@{*/ - -/** - * Flush vertices. - * - * \param ctx GL context. - * \param newstate new state. - * - * Checks if dd_function_table::NeedFlush is marked to flush stored vertices, - * and calls dd_function_table::FlushVertices if so. Marks - * __struct gl_contextRec::NewState with \p newstate. - */ -#define FLUSH_VERTICES(ctx, newstate) \ -do { \ - if (MESA_VERBOSE & VERBOSE_STATE) \ - _mesa_debug(ctx, "FLUSH_VERTICES in %s\n", MESA_FUNCTION);\ - if (ctx->Driver.NeedFlush & FLUSH_STORED_VERTICES) \ - ctx->Driver.FlushVertices(ctx, FLUSH_STORED_VERTICES); \ - ctx->NewState |= newstate; \ -} while (0) - -/** - * Flush current state. - * - * \param ctx GL context. - * \param newstate new state. - * - * Checks if dd_function_table::NeedFlush is marked to flush current state, - * and calls dd_function_table::FlushVertices if so. Marks - * __struct gl_contextRec::NewState with \p newstate. - */ -#define FLUSH_CURRENT(ctx, newstate) \ -do { \ - if (MESA_VERBOSE & VERBOSE_STATE) \ - _mesa_debug(ctx, "FLUSH_CURRENT in %s\n", MESA_FUNCTION); \ - if (ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT) \ - ctx->Driver.FlushVertices(ctx, FLUSH_UPDATE_CURRENT); \ - ctx->NewState |= newstate; \ -} while (0) - -/** - * Macro to assert that the API call was made outside the - * glBegin()/glEnd() pair, with return value. - * - * \param ctx GL context. - * \param retval value to return value in case the assertion fails. - */ -#define ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval) \ -do { \ - if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { \ - _mesa_error(ctx, GL_INVALID_OPERATION, "Inside glBegin/glEnd"); \ - return retval; \ - } \ -} while (0) - -/** - * Macro to assert that the API call was made outside the - * glBegin()/glEnd() pair. - * - * \param ctx GL context. - */ -#define ASSERT_OUTSIDE_BEGIN_END(ctx) \ -do { \ - if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { \ - _mesa_error(ctx, GL_INVALID_OPERATION, "Inside glBegin/glEnd"); \ - return; \ - } \ -} while (0) - -/** - * Macro to assert that the API call was made outside the - * glBegin()/glEnd() pair and flush the vertices. - * - * \param ctx GL context. - */ -#define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx) \ -do { \ - ASSERT_OUTSIDE_BEGIN_END(ctx); \ - FLUSH_VERTICES(ctx, 0); \ -} while (0) - -/** - * Macro to assert that the API call was made outside the - * glBegin()/glEnd() pair and flush the vertices, with return value. - * - * \param ctx GL context. - * \param retval value to return value in case the assertion fails. - */ -#define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, retval) \ -do { \ - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval); \ - FLUSH_VERTICES(ctx, 0); \ -} while (0) - -/*@}*/ - - - -/** - * Is the secondary color needed? - */ -#define NEED_SECONDARY_COLOR(CTX) \ - (((CTX)->Light.Enabled && \ - (CTX)->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR) \ - || (CTX)->Fog.ColorSumEnabled \ - || ((CTX)->VertexProgram._Current && \ - ((CTX)->VertexProgram._Current != (CTX)->VertexProgram._TnlProgram) && \ - ((CTX)->VertexProgram._Current->Base.InputsRead & VERT_BIT_COLOR1)) \ - || ((CTX)->FragmentProgram._Current && \ - ((CTX)->FragmentProgram._Current != (CTX)->FragmentProgram._TexEnvProgram) && \ - ((CTX)->FragmentProgram._Current->Base.InputsRead & FRAG_BIT_COL1)) \ - ) - - -/** - * Is RGBA LogicOp enabled? - */ -#define RGBA_LOGICOP_ENABLED(CTX) \ - ((CTX)->Color.ColorLogicOpEnabled || \ - ((CTX)->Color.BlendEnabled && (CTX)->Color.Blend[0].EquationRGB == GL_LOGIC_OP)) - - -#endif /* CONTEXT_H */ +/* + * Mesa 3-D graphics library + * Version: 6.5.1 + * + * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +/** + * \file context.h + * Mesa context and visual-related functions. + * + * There are three large Mesa data types/classes which are meant to be + * used by device drivers: + * - struct gl_context: this contains the Mesa rendering state + * - struct gl_config: this describes the color buffer (RGB vs. ci), whether or not + * there's a depth buffer, stencil buffer, etc. + * - struct gl_framebuffer: contains pointers to the depth buffer, stencil buffer, + * accum buffer and alpha buffers. + * + * These types should be encapsulated by corresponding device driver + * data types. See xmesa.h and xmesaP.h for an example. + * + * In OOP terms, struct gl_context, struct gl_config, and struct gl_framebuffer are base classes + * which the device driver must derive from. + * + * The following functions create and destroy these data types. + */ + + +#ifndef CONTEXT_H +#define CONTEXT_H + + +#include "imports.h" +#include "mtypes.h" + + +struct _glapi_table; + + +/** \name Visual-related functions */ +/*@{*/ + +extern struct gl_config * +_mesa_create_visual( GLboolean dbFlag, + GLboolean stereoFlag, + GLint redBits, + GLint greenBits, + GLint blueBits, + GLint alphaBits, + GLint depthBits, + GLint stencilBits, + GLint accumRedBits, + GLint accumGreenBits, + GLint accumBlueBits, + GLint accumAlphaBits, + GLint numSamples ); + +extern GLboolean +_mesa_initialize_visual( struct gl_config *v, + GLboolean dbFlag, + GLboolean stereoFlag, + GLint redBits, + GLint greenBits, + GLint blueBits, + GLint alphaBits, + GLint depthBits, + GLint stencilBits, + GLint accumRedBits, + GLint accumGreenBits, + GLint accumBlueBits, + GLint accumAlphaBits, + GLint numSamples ); + +extern void +_mesa_destroy_visual( struct gl_config *vis ); + +/*@}*/ + + +/** \name Context-related functions */ +/*@{*/ + +extern GLboolean +_mesa_initialize_context( struct gl_context *ctx, + gl_api api, + const struct gl_config *visual, + struct gl_context *share_list, + const struct dd_function_table *driverFunctions, + void *driverContext ); + +extern struct gl_context * +_mesa_create_context(gl_api api, + const struct gl_config *visual, + struct gl_context *share_list, + const struct dd_function_table *driverFunctions, + void *driverContext); + +extern void +_mesa_free_context_data( struct gl_context *ctx ); + +extern void +_mesa_destroy_context( struct gl_context *ctx ); + + +extern void +_mesa_copy_context(const struct gl_context *src, struct gl_context *dst, GLuint mask); + + +extern void +_mesa_check_init_viewport(struct gl_context *ctx, GLuint width, GLuint height); + +extern GLboolean +_mesa_make_current( struct gl_context *ctx, struct gl_framebuffer *drawBuffer, + struct gl_framebuffer *readBuffer ); + +extern GLboolean +_mesa_share_state(struct gl_context *ctx, struct gl_context *ctxToShare); + +extern struct gl_context * +_mesa_get_current_context(void); + +/*@}*/ + +extern void +_mesa_init_get_hash(struct gl_context *ctx); + +extern void +_mesa_notifySwapBuffers(struct gl_context *gc); + + +extern struct _glapi_table * +_mesa_get_dispatch(struct gl_context *ctx); + + +void +_mesa_set_mvp_with_dp4( struct gl_context *ctx, + GLboolean flag ); + + +extern GLboolean +_mesa_valid_to_render(struct gl_context *ctx, const char *where); + + + +/** \name Miscellaneous */ +/*@{*/ + +extern void +_mesa_record_error( struct gl_context *ctx, GLenum error ); + + +extern void +_mesa_finish(struct gl_context *ctx); + +extern void +_mesa_flush(struct gl_context *ctx); + + +extern void GLAPIENTRY +_mesa_Finish( void ); + +extern void GLAPIENTRY +_mesa_Flush( void ); + +/*@}*/ + + +/** + * \name Macros for flushing buffered rendering commands before state changes, + * checking if inside glBegin/glEnd, etc. + */ +/*@{*/ + +/** + * Flush vertices. + * + * \param ctx GL context. + * \param newstate new state. + * + * Checks if dd_function_table::NeedFlush is marked to flush stored vertices, + * and calls dd_function_table::FlushVertices if so. Marks + * __struct gl_contextRec::NewState with \p newstate. + */ +#define FLUSH_VERTICES(ctx, newstate) \ +do { \ + if (MESA_VERBOSE & VERBOSE_STATE) \ + _mesa_debug(ctx, "FLUSH_VERTICES in %s\n", MESA_FUNCTION);\ + if (ctx->Driver.NeedFlush & FLUSH_STORED_VERTICES) \ + ctx->Driver.FlushVertices(ctx, FLUSH_STORED_VERTICES); \ + ctx->NewState |= newstate; \ +} while (0) + +/** + * Flush current state. + * + * \param ctx GL context. + * \param newstate new state. + * + * Checks if dd_function_table::NeedFlush is marked to flush current state, + * and calls dd_function_table::FlushVertices if so. Marks + * __struct gl_contextRec::NewState with \p newstate. + */ +#define FLUSH_CURRENT(ctx, newstate) \ +do { \ + if (MESA_VERBOSE & VERBOSE_STATE) \ + _mesa_debug(ctx, "FLUSH_CURRENT in %s\n", MESA_FUNCTION); \ + if (ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT) \ + ctx->Driver.FlushVertices(ctx, FLUSH_UPDATE_CURRENT); \ + ctx->NewState |= newstate; \ +} while (0) + +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair, with return value. + * + * \param ctx GL context. + * \param retval value to return value in case the assertion fails. + */ +#define ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval) \ +do { \ + if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { \ + _mesa_error(ctx, GL_INVALID_OPERATION, "Inside glBegin/glEnd"); \ + return retval; \ + } \ +} while (0) + +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair. + * + * \param ctx GL context. + */ +#define ASSERT_OUTSIDE_BEGIN_END(ctx) \ +do { \ + if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { \ + _mesa_error(ctx, GL_INVALID_OPERATION, "Inside glBegin/glEnd"); \ + return; \ + } \ +} while (0) + +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair and flush the vertices. + * + * \param ctx GL context. + */ +#define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx) \ +do { \ + ASSERT_OUTSIDE_BEGIN_END(ctx); \ + FLUSH_VERTICES(ctx, 0); \ +} while (0) + +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair and flush the vertices, with return value. + * + * \param ctx GL context. + * \param retval value to return value in case the assertion fails. + */ +#define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, retval) \ +do { \ + ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval); \ + FLUSH_VERTICES(ctx, 0); \ +} while (0) + +/*@}*/ + + + +#endif /* CONTEXT_H */ diff --git a/mesalib/src/mesa/main/ff_fragment_shader.cpp b/mesalib/src/mesa/main/ff_fragment_shader.cpp new file mode 100644 index 000000000..ed513397a --- /dev/null +++ b/mesalib/src/mesa/main/ff_fragment_shader.cpp @@ -0,0 +1,1504 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * Copyright 2009 VMware, Inc. All Rights Reserved. + * Copyright © 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +extern "C" { +#include "glheader.h" +#include "imports.h" +#include "mtypes.h" +#include "main/uniforms.h" +#include "main/macros.h" +#include "program/program.h" +#include "program/prog_parameter.h" +#include "program/prog_cache.h" +#include "program/prog_instruction.h" +#include "program/prog_print.h" +#include "program/prog_statevars.h" +#include "program/programopt.h" +#include "texenvprogram.h" +} +#include "../glsl/glsl_types.h" +#include "../glsl/ir.h" +#include "../glsl/glsl_symbol_table.h" +#include "../glsl/glsl_parser_extras.h" +#include "../glsl/ir_optimization.h" +#include "../glsl/ir_print_visitor.h" +#include "../program/ir_to_mesa.h" + +/* + * Note on texture units: + * + * The number of texture units supported by fixed-function fragment + * processing is MAX_TEXTURE_COORD_UNITS, not MAX_TEXTURE_IMAGE_UNITS. + * That's because there's a one-to-one correspondence between texture + * coordinates and samplers in fixed-function processing. + * + * Since fixed-function vertex processing is limited to MAX_TEXTURE_COORD_UNITS + * sets of texcoords, so is fixed-function fragment processing. + * + * We can safely use ctx->Const.MaxTextureUnits for loop bounds. + */ + + +struct texenvprog_cache_item +{ + GLuint hash; + void *key; + struct gl_shader_program *data; + struct texenvprog_cache_item *next; +}; + +static GLboolean +texenv_doing_secondary_color(struct gl_context *ctx) +{ + if (ctx->Light.Enabled && + (ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)) + return GL_TRUE; + + if (ctx->Fog.ColorSumEnabled) + return GL_TRUE; + + return GL_FALSE; +} + +struct mode_opt { +#ifdef __GNUC__ + __extension__ GLubyte Source:4; /**< SRC_x */ + __extension__ GLubyte Operand:3; /**< OPR_x */ +#else + GLubyte Source; /**< SRC_x */ + GLubyte Operand; /**< OPR_x */ +#endif +}; + +struct state_key { + GLuint nr_enabled_units:8; + GLuint enabled_units:8; + GLuint separate_specular:1; + GLuint fog_enabled:1; + GLuint fog_mode:2; /**< FOG_x */ + GLuint inputs_available:12; + GLuint num_draw_buffers:4; + + /* NOTE: This array of structs must be last! (see "keySize" below) */ + struct { + GLuint enabled:1; + GLuint source_index:3; /**< TEXTURE_x_INDEX */ + GLuint shadow:1; + GLuint ScaleShiftRGB:2; + GLuint ScaleShiftA:2; + + GLuint NumArgsRGB:3; /**< up to MAX_COMBINER_TERMS */ + GLuint ModeRGB:5; /**< MODE_x */ + + GLuint NumArgsA:3; /**< up to MAX_COMBINER_TERMS */ + GLuint ModeA:5; /**< MODE_x */ + + struct mode_opt OptRGB[MAX_COMBINER_TERMS]; + struct mode_opt OptA[MAX_COMBINER_TERMS]; + } unit[MAX_TEXTURE_UNITS]; +}; + +#define FOG_LINEAR 0 +#define FOG_EXP 1 +#define FOG_EXP2 2 +#define FOG_UNKNOWN 3 + +static GLuint translate_fog_mode( GLenum mode ) +{ + switch (mode) { + case GL_LINEAR: return FOG_LINEAR; + case GL_EXP: return FOG_EXP; + case GL_EXP2: return FOG_EXP2; + default: return FOG_UNKNOWN; + } +} + +#define OPR_SRC_COLOR 0 +#define OPR_ONE_MINUS_SRC_COLOR 1 +#define OPR_SRC_ALPHA 2 +#define OPR_ONE_MINUS_SRC_ALPHA 3 +#define OPR_ZERO 4 +#define OPR_ONE 5 +#define OPR_UNKNOWN 7 + +static GLuint translate_operand( GLenum operand ) +{ + switch (operand) { + case GL_SRC_COLOR: return OPR_SRC_COLOR; + case GL_ONE_MINUS_SRC_COLOR: return OPR_ONE_MINUS_SRC_COLOR; + case GL_SRC_ALPHA: return OPR_SRC_ALPHA; + case GL_ONE_MINUS_SRC_ALPHA: return OPR_ONE_MINUS_SRC_ALPHA; + case GL_ZERO: return OPR_ZERO; + case GL_ONE: return OPR_ONE; + default: + assert(0); + return OPR_UNKNOWN; + } +} + +#define SRC_TEXTURE 0 +#define SRC_TEXTURE0 1 +#define SRC_TEXTURE1 2 +#define SRC_TEXTURE2 3 +#define SRC_TEXTURE3 4 +#define SRC_TEXTURE4 5 +#define SRC_TEXTURE5 6 +#define SRC_TEXTURE6 7 +#define SRC_TEXTURE7 8 +#define SRC_CONSTANT 9 +#define SRC_PRIMARY_COLOR 10 +#define SRC_PREVIOUS 11 +#define SRC_ZERO 12 +#define SRC_UNKNOWN 15 + +static GLuint translate_source( GLenum src ) +{ + switch (src) { + case GL_TEXTURE: return SRC_TEXTURE; + case GL_TEXTURE0: + case GL_TEXTURE1: + case GL_TEXTURE2: + case GL_TEXTURE3: + case GL_TEXTURE4: + case GL_TEXTURE5: + case GL_TEXTURE6: + case GL_TEXTURE7: return SRC_TEXTURE0 + (src - GL_TEXTURE0); + case GL_CONSTANT: return SRC_CONSTANT; + case GL_PRIMARY_COLOR: return SRC_PRIMARY_COLOR; + case GL_PREVIOUS: return SRC_PREVIOUS; + case GL_ZERO: + return SRC_ZERO; + default: + assert(0); + return SRC_UNKNOWN; + } +} + +#define MODE_REPLACE 0 /* r = a0 */ +#define MODE_MODULATE 1 /* r = a0 * a1 */ +#define MODE_ADD 2 /* r = a0 + a1 */ +#define MODE_ADD_SIGNED 3 /* r = a0 + a1 - 0.5 */ +#define MODE_INTERPOLATE 4 /* r = a0 * a2 + a1 * (1 - a2) */ +#define MODE_SUBTRACT 5 /* r = a0 - a1 */ +#define MODE_DOT3_RGB 6 /* r = a0 . a1 */ +#define MODE_DOT3_RGB_EXT 7 /* r = a0 . a1 */ +#define MODE_DOT3_RGBA 8 /* r = a0 . a1 */ +#define MODE_DOT3_RGBA_EXT 9 /* r = a0 . a1 */ +#define MODE_MODULATE_ADD_ATI 10 /* r = a0 * a2 + a1 */ +#define MODE_MODULATE_SIGNED_ADD_ATI 11 /* r = a0 * a2 + a1 - 0.5 */ +#define MODE_MODULATE_SUBTRACT_ATI 12 /* r = a0 * a2 - a1 */ +#define MODE_ADD_PRODUCTS 13 /* r = a0 * a1 + a2 * a3 */ +#define MODE_ADD_PRODUCTS_SIGNED 14 /* r = a0 * a1 + a2 * a3 - 0.5 */ +#define MODE_BUMP_ENVMAP_ATI 15 /* special */ +#define MODE_UNKNOWN 16 + +/** + * Translate GL combiner state into a MODE_x value + */ +static GLuint translate_mode( GLenum envMode, GLenum mode ) +{ + switch (mode) { + case GL_REPLACE: return MODE_REPLACE; + case GL_MODULATE: return MODE_MODULATE; + case GL_ADD: + if (envMode == GL_COMBINE4_NV) + return MODE_ADD_PRODUCTS; + else + return MODE_ADD; + case GL_ADD_SIGNED: + if (envMode == GL_COMBINE4_NV) + return MODE_ADD_PRODUCTS_SIGNED; + else + return MODE_ADD_SIGNED; + case GL_INTERPOLATE: return MODE_INTERPOLATE; + case GL_SUBTRACT: return MODE_SUBTRACT; + case GL_DOT3_RGB: return MODE_DOT3_RGB; + case GL_DOT3_RGB_EXT: return MODE_DOT3_RGB_EXT; + case GL_DOT3_RGBA: return MODE_DOT3_RGBA; + case GL_DOT3_RGBA_EXT: return MODE_DOT3_RGBA_EXT; + case GL_MODULATE_ADD_ATI: return MODE_MODULATE_ADD_ATI; + case GL_MODULATE_SIGNED_ADD_ATI: return MODE_MODULATE_SIGNED_ADD_ATI; + case GL_MODULATE_SUBTRACT_ATI: return MODE_MODULATE_SUBTRACT_ATI; + case GL_BUMP_ENVMAP_ATI: return MODE_BUMP_ENVMAP_ATI; + default: + assert(0); + return MODE_UNKNOWN; + } +} + + +/** + * Do we need to clamp the results of the given texture env/combine mode? + * If the inputs to the mode are in [0,1] we don't always have to clamp + * the results. + */ +static GLboolean +need_saturate( GLuint mode ) +{ + switch (mode) { + case MODE_REPLACE: + case MODE_MODULATE: + case MODE_INTERPOLATE: + return GL_FALSE; + case MODE_ADD: + case MODE_ADD_SIGNED: + case MODE_SUBTRACT: + case MODE_DOT3_RGB: + case MODE_DOT3_RGB_EXT: + case MODE_DOT3_RGBA: + case MODE_DOT3_RGBA_EXT: + case MODE_MODULATE_ADD_ATI: + case MODE_MODULATE_SIGNED_ADD_ATI: + case MODE_MODULATE_SUBTRACT_ATI: + case MODE_ADD_PRODUCTS: + case MODE_ADD_PRODUCTS_SIGNED: + case MODE_BUMP_ENVMAP_ATI: + return GL_TRUE; + default: + assert(0); + return GL_FALSE; + } +} + + + +/** + * Translate TEXTURE_x_BIT to TEXTURE_x_INDEX. + */ +static GLuint translate_tex_src_bit( GLbitfield bit ) +{ + ASSERT(bit); + return _mesa_ffs(bit) - 1; +} + + +#define VERT_BIT_TEX_ANY (0xff << VERT_ATTRIB_TEX0) +#define VERT_RESULT_TEX_ANY (0xff << VERT_RESULT_TEX0) + +/** + * Identify all possible varying inputs. The fragment program will + * never reference non-varying inputs, but will track them via state + * constants instead. + * + * This function figures out all the inputs that the fragment program + * has access to. The bitmask is later reduced to just those which + * are actually referenced. + */ +static GLbitfield get_fp_input_mask( struct gl_context *ctx ) +{ + /* _NEW_PROGRAM */ + const GLboolean vertexShader = + (ctx->Shader.CurrentVertexProgram && + ctx->Shader.CurrentVertexProgram->LinkStatus && + ctx->Shader.CurrentVertexProgram->VertexProgram); + const GLboolean vertexProgram = ctx->VertexProgram._Enabled; + GLbitfield fp_inputs = 0x0; + + if (ctx->VertexProgram._Overriden) { + /* Somebody's messing with the vertex program and we don't have + * a clue what's happening. Assume that it could be producing + * all possible outputs. + */ + fp_inputs = ~0; + } + else if (ctx->RenderMode == GL_FEEDBACK) { + /* _NEW_RENDERMODE */ + fp_inputs = (FRAG_BIT_COL0 | FRAG_BIT_TEX0); + } + else if (!(vertexProgram || vertexShader) || + !ctx->VertexProgram._Current) { + /* Fixed function vertex logic */ + /* _NEW_ARRAY */ + GLbitfield varying_inputs = ctx->varying_vp_inputs; + + /* These get generated in the setup routine regardless of the + * vertex program: + */ + /* _NEW_POINT */ + if (ctx->Point.PointSprite) + varying_inputs |= FRAG_BITS_TEX_ANY; + + /* First look at what values may be computed by the generated + * vertex program: + */ + /* _NEW_LIGHT */ + if (ctx->Light.Enabled) { + fp_inputs |= FRAG_BIT_COL0; + + if (texenv_doing_secondary_color(ctx)) + fp_inputs |= FRAG_BIT_COL1; + } + + /* _NEW_TEXTURE */ + fp_inputs |= (ctx->Texture._TexGenEnabled | + ctx->Texture._TexMatEnabled) << FRAG_ATTRIB_TEX0; + + /* Then look at what might be varying as a result of enabled + * arrays, etc: + */ + if (varying_inputs & VERT_BIT_COLOR0) + fp_inputs |= FRAG_BIT_COL0; + if (varying_inputs & VERT_BIT_COLOR1) + fp_inputs |= FRAG_BIT_COL1; + + fp_inputs |= (((varying_inputs & VERT_BIT_TEX_ANY) >> VERT_ATTRIB_TEX0) + << FRAG_ATTRIB_TEX0); + + } + else { + /* calculate from vp->outputs */ + struct gl_vertex_program *vprog; + GLbitfield64 vp_outputs; + + /* Choose GLSL vertex shader over ARB vertex program. Need this + * since vertex shader state validation comes after fragment state + * validation (see additional comments in state.c). + */ + if (vertexShader) + vprog = ctx->Shader.CurrentVertexProgram->VertexProgram; + else + vprog = ctx->VertexProgram.Current; + + vp_outputs = vprog->Base.OutputsWritten; + + /* These get generated in the setup routine regardless of the + * vertex program: + */ + /* _NEW_POINT */ + if (ctx->Point.PointSprite) + vp_outputs |= FRAG_BITS_TEX_ANY; + + if (vp_outputs & (1 << VERT_RESULT_COL0)) + fp_inputs |= FRAG_BIT_COL0; + if (vp_outputs & (1 << VERT_RESULT_COL1)) + fp_inputs |= FRAG_BIT_COL1; + + fp_inputs |= (((vp_outputs & VERT_RESULT_TEX_ANY) >> VERT_RESULT_TEX0) + << FRAG_ATTRIB_TEX0); + } + + return fp_inputs; +} + + +/** + * Examine current texture environment state and generate a unique + * key to identify it. + */ +static GLuint make_state_key( struct gl_context *ctx, struct state_key *key ) +{ + GLuint i, j; + GLbitfield inputs_referenced = FRAG_BIT_COL0; + const GLbitfield inputs_available = get_fp_input_mask( ctx ); + GLuint keySize; + + memset(key, 0, sizeof(*key)); + + /* _NEW_TEXTURE */ + for (i = 0; i < ctx->Const.MaxTextureUnits; i++) { + const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i]; + const struct gl_texture_object *texObj = texUnit->_Current; + const struct gl_tex_env_combine_state *comb = texUnit->_CurrentCombine; + GLenum format; + + if (!texUnit->_ReallyEnabled || !texUnit->Enabled) + continue; + + format = texObj->Image[0][texObj->BaseLevel]->_BaseFormat; + + key->unit[i].enabled = 1; + key->enabled_units |= (1<nr_enabled_units = i + 1; + inputs_referenced |= FRAG_BIT_TEX(i); + + key->unit[i].source_index = + translate_tex_src_bit(texUnit->_ReallyEnabled); + + key->unit[i].shadow = ((texObj->CompareMode == GL_COMPARE_R_TO_TEXTURE) && + ((format == GL_DEPTH_COMPONENT) || + (format == GL_DEPTH_STENCIL_EXT))); + + key->unit[i].NumArgsRGB = comb->_NumArgsRGB; + key->unit[i].NumArgsA = comb->_NumArgsA; + + key->unit[i].ModeRGB = + translate_mode(texUnit->EnvMode, comb->ModeRGB); + key->unit[i].ModeA = + translate_mode(texUnit->EnvMode, comb->ModeA); + + key->unit[i].ScaleShiftRGB = comb->ScaleShiftRGB; + key->unit[i].ScaleShiftA = comb->ScaleShiftA; + + for (j = 0; j < MAX_COMBINER_TERMS; j++) { + key->unit[i].OptRGB[j].Operand = translate_operand(comb->OperandRGB[j]); + key->unit[i].OptA[j].Operand = translate_operand(comb->OperandA[j]); + key->unit[i].OptRGB[j].Source = translate_source(comb->SourceRGB[j]); + key->unit[i].OptA[j].Source = translate_source(comb->SourceA[j]); + } + + if (key->unit[i].ModeRGB == MODE_BUMP_ENVMAP_ATI) { + /* requires some special translation */ + key->unit[i].NumArgsRGB = 2; + key->unit[i].ScaleShiftRGB = 0; + key->unit[i].OptRGB[0].Operand = OPR_SRC_COLOR; + key->unit[i].OptRGB[0].Source = SRC_TEXTURE; + key->unit[i].OptRGB[1].Operand = OPR_SRC_COLOR; + key->unit[i].OptRGB[1].Source = texUnit->BumpTarget - GL_TEXTURE0 + SRC_TEXTURE0; + } + } + + /* _NEW_LIGHT | _NEW_FOG */ + if (texenv_doing_secondary_color(ctx)) { + key->separate_specular = 1; + inputs_referenced |= FRAG_BIT_COL1; + } + + /* _NEW_FOG */ + if (ctx->Fog.Enabled) { + key->fog_enabled = 1; + key->fog_mode = translate_fog_mode(ctx->Fog.Mode); + inputs_referenced |= FRAG_BIT_FOGC; /* maybe */ + } + + /* _NEW_BUFFERS */ + key->num_draw_buffers = ctx->DrawBuffer->_NumColorDrawBuffers; + + key->inputs_available = (inputs_available & inputs_referenced); + + /* compute size of state key, ignoring unused texture units */ + keySize = sizeof(*key) - sizeof(key->unit) + + key->nr_enabled_units * sizeof(key->unit[0]); + + return keySize; +} + + +/** State used to build the fragment program: + */ +struct texenv_fragment_program { + struct gl_shader_program *shader_program; + struct gl_shader *shader; + struct gl_fragment_program *program; + exec_list *instructions; + exec_list *top_instructions; + void *mem_ctx; + struct state_key *state; + + GLbitfield alu_temps; /**< Track texture indirections, see spec. */ + GLbitfield temps_output; /**< Track texture indirections, see spec. */ + GLbitfield temp_in_use; /**< Tracks temporary regs which are in use. */ + GLboolean error; + + ir_variable *src_texture[MAX_TEXTURE_COORD_UNITS]; + /* Reg containing each texture unit's sampled texture color, + * else undef. + */ + + /* Texcoord override from bumpmapping. */ + struct ir_variable *texcoord_tex[MAX_TEXTURE_COORD_UNITS]; + + /* Reg containing texcoord for a texture unit, + * needed for bump mapping, else undef. + */ + + ir_rvalue *src_previous; /**< Reg containing color from previous + * stage. May need to be decl'd. + */ + + GLuint last_tex_stage; /**< Number of last enabled texture unit */ +}; + +static ir_rvalue * +get_source(struct texenv_fragment_program *p, + GLuint src, GLuint unit) +{ + ir_variable *var; + ir_dereference *deref; + + switch (src) { + case SRC_TEXTURE: + return new(p->mem_ctx) ir_dereference_variable(p->src_texture[unit]); + + case SRC_TEXTURE0: + case SRC_TEXTURE1: + case SRC_TEXTURE2: + case SRC_TEXTURE3: + case SRC_TEXTURE4: + case SRC_TEXTURE5: + case SRC_TEXTURE6: + case SRC_TEXTURE7: + return new(p->mem_ctx) + ir_dereference_variable(p->src_texture[src - SRC_TEXTURE0]); + + case SRC_CONSTANT: + var = p->shader->symbols->get_variable("gl_TextureEnvColor"); + assert(var); + deref = new(p->mem_ctx) ir_dereference_variable(var); + var->max_array_access = MAX2(var->max_array_access, unit); + return new(p->mem_ctx) ir_dereference_array(deref, + new(p->mem_ctx) ir_constant(unit)); + + case SRC_PRIMARY_COLOR: + var = p->shader->symbols->get_variable("gl_Color"); + assert(var); + return new(p->mem_ctx) ir_dereference_variable(var); + + case SRC_ZERO: + return new(p->mem_ctx) ir_constant(0.0f); + + case SRC_PREVIOUS: + if (!p->src_previous) { + var = p->shader->symbols->get_variable("gl_Color"); + assert(var); + return new(p->mem_ctx) ir_dereference_variable(var); + } else { + return p->src_previous->clone(p->mem_ctx, NULL); + } + + default: + assert(0); + return NULL; + } +} + +static ir_rvalue * +emit_combine_source(struct texenv_fragment_program *p, + GLuint unit, + GLuint source, + GLuint operand) +{ + ir_rvalue *src; + + src = get_source(p, source, unit); + + switch (operand) { + case OPR_ONE_MINUS_SRC_COLOR: + return new(p->mem_ctx) ir_expression(ir_binop_sub, + new(p->mem_ctx) ir_constant(1.0f), + src); + + case OPR_SRC_ALPHA: + return new(p->mem_ctx) ir_swizzle(src, 3, 3, 3, 3, 1); + + case OPR_ONE_MINUS_SRC_ALPHA: + return new(p->mem_ctx) ir_expression(ir_binop_sub, + new(p->mem_ctx) ir_constant(1.0f), + new(p->mem_ctx) ir_swizzle(src, + 3, 3, + 3, 3, 1)); + case OPR_ZERO: + return new(p->mem_ctx) ir_constant(0.0f); + case OPR_ONE: + return new(p->mem_ctx) ir_constant(1.0f); + case OPR_SRC_COLOR: + return src; + default: + assert(0); + return src; + } +} + +/** + * Check if the RGB and Alpha sources and operands match for the given + * texture unit's combinder state. When the RGB and A sources and + * operands match, we can emit fewer instructions. + */ +static GLboolean args_match( const struct state_key *key, GLuint unit ) +{ + GLuint i, numArgs = key->unit[unit].NumArgsRGB; + + for (i = 0; i < numArgs; i++) { + if (key->unit[unit].OptA[i].Source != key->unit[unit].OptRGB[i].Source) + return GL_FALSE; + + switch (key->unit[unit].OptA[i].Operand) { + case OPR_SRC_ALPHA: + switch (key->unit[unit].OptRGB[i].Operand) { + case OPR_SRC_COLOR: + case OPR_SRC_ALPHA: + break; + default: + return GL_FALSE; + } + break; + case OPR_ONE_MINUS_SRC_ALPHA: + switch (key->unit[unit].OptRGB[i].Operand) { + case OPR_ONE_MINUS_SRC_COLOR: + case OPR_ONE_MINUS_SRC_ALPHA: + break; + default: + return GL_FALSE; + } + break; + default: + return GL_FALSE; /* impossible */ + } + } + + return GL_TRUE; +} + +static ir_rvalue * +smear(struct texenv_fragment_program *p, ir_rvalue *val) +{ + if (!val->type->is_scalar()) + return val; + + return new(p->mem_ctx) ir_swizzle(val, 0, 0, 0, 0, 4); +} + +static ir_rvalue * +emit_combine(struct texenv_fragment_program *p, + GLuint unit, + GLuint nr, + GLuint mode, + const struct mode_opt *opt) +{ + ir_rvalue *src[MAX_COMBINER_TERMS]; + ir_rvalue *tmp0, *tmp1; + GLuint i; + + assert(nr <= MAX_COMBINER_TERMS); + + for (i = 0; i < nr; i++) + src[i] = emit_combine_source( p, unit, opt[i].Source, opt[i].Operand ); + + switch (mode) { + case MODE_REPLACE: + return src[0]; + + case MODE_MODULATE: + return new(p->mem_ctx) ir_expression(ir_binop_mul, src[0], src[1]); + + case MODE_ADD: + return new(p->mem_ctx) ir_expression(ir_binop_add, src[0], src[1]); + + case MODE_ADD_SIGNED: + tmp0 = new(p->mem_ctx) ir_expression(ir_binop_add, src[0], src[1]); + return new(p->mem_ctx) ir_expression(ir_binop_add, tmp0, + new(p->mem_ctx) ir_constant(-0.5f)); + + case MODE_INTERPOLATE: + /* Arg0 * (Arg2) + Arg1 * (1-Arg2) */ + tmp0 = new(p->mem_ctx) ir_expression(ir_binop_mul, src[0], src[2]); + + tmp1 = new(p->mem_ctx) ir_expression(ir_binop_sub, + new(p->mem_ctx) ir_constant(1.0f), + src[2]->clone(p->mem_ctx, NULL)); + tmp1 = new(p->mem_ctx) ir_expression(ir_binop_mul, src[1], tmp1); + + return new(p->mem_ctx) ir_expression(ir_binop_add, tmp0, tmp1); + + case MODE_SUBTRACT: + return new(p->mem_ctx) ir_expression(ir_binop_sub, src[0], src[1]); + + case MODE_DOT3_RGBA: + case MODE_DOT3_RGBA_EXT: + case MODE_DOT3_RGB_EXT: + case MODE_DOT3_RGB: { + tmp0 = new(p->mem_ctx) ir_expression(ir_binop_mul, src[0], + new(p->mem_ctx) ir_constant(2.0f)); + tmp0 = new(p->mem_ctx) ir_expression(ir_binop_add, tmp0, + new(p->mem_ctx) ir_constant(-1.0f)); + tmp0 = new(p->mem_ctx) ir_swizzle(smear(p, tmp0), 0, 1, 2, 3, 3); + + tmp1 = new(p->mem_ctx) ir_expression(ir_binop_mul, src[1], + new(p->mem_ctx) ir_constant(2.0f)); + tmp1 = new(p->mem_ctx) ir_expression(ir_binop_add, tmp1, + new(p->mem_ctx) ir_constant(-1.0f)); + tmp1 = new(p->mem_ctx) ir_swizzle(smear(p, tmp1), 0, 1, 2, 3, 3); + + return new(p->mem_ctx) ir_expression(ir_binop_dot, tmp0, tmp1); + } + case MODE_MODULATE_ADD_ATI: + tmp0 = new(p->mem_ctx) ir_expression(ir_binop_mul, src[0], src[2]); + return new(p->mem_ctx) ir_expression(ir_binop_add, tmp0, src[1]); + + case MODE_MODULATE_SIGNED_ADD_ATI: + tmp0 = new(p->mem_ctx) ir_expression(ir_binop_mul, src[0], src[2]); + tmp0 = new(p->mem_ctx) ir_expression(ir_binop_add, tmp0, src[1]); + return new(p->mem_ctx) ir_expression(ir_binop_add, tmp0, + new(p->mem_ctx) ir_constant(-0.5f)); + + case MODE_MODULATE_SUBTRACT_ATI: + tmp0 = new(p->mem_ctx) ir_expression(ir_binop_mul, src[0], src[2]); + return new(p->mem_ctx) ir_expression(ir_binop_sub, tmp0, src[1]); + + case MODE_ADD_PRODUCTS: + tmp0 = new(p->mem_ctx) ir_expression(ir_binop_mul, src[0], src[1]); + tmp1 = new(p->mem_ctx) ir_expression(ir_binop_mul, src[2], src[3]); + return new(p->mem_ctx) ir_expression(ir_binop_add, tmp0, tmp1); + + case MODE_ADD_PRODUCTS_SIGNED: + tmp0 = new(p->mem_ctx) ir_expression(ir_binop_mul, src[0], src[1]); + tmp1 = new(p->mem_ctx) ir_expression(ir_binop_mul, src[2], src[3]); + tmp0 = new(p->mem_ctx) ir_expression(ir_binop_add, tmp0, tmp1); + return new(p->mem_ctx) ir_expression(ir_binop_add, tmp0, + new(p->mem_ctx) ir_constant(-0.5f)); + + case MODE_BUMP_ENVMAP_ATI: + /* special - not handled here */ + assert(0); + return src[0]; + default: + assert(0); + return src[0]; + } +} + +static ir_rvalue * +saturate(struct texenv_fragment_program *p, ir_rvalue *val) +{ + val = new(p->mem_ctx) ir_expression(ir_binop_min, val, + new(p->mem_ctx) ir_constant(1.0f)); + return new(p->mem_ctx) ir_expression(ir_binop_max, val, + new(p->mem_ctx) ir_constant(0.0f)); +} + +/** + * Generate instructions for one texture unit's env/combiner mode. + */ +static ir_rvalue * +emit_texenv(struct texenv_fragment_program *p, GLuint unit) +{ + const struct state_key *key = p->state; + GLboolean rgb_saturate, alpha_saturate; + GLuint rgb_shift, alpha_shift; + + if (!key->unit[unit].enabled) { + return get_source(p, SRC_PREVIOUS, 0); + } + if (key->unit[unit].ModeRGB == MODE_BUMP_ENVMAP_ATI) { + /* this isn't really a env stage delivering a color and handled elsewhere */ + return get_source(p, SRC_PREVIOUS, 0); + } + + switch (key->unit[unit].ModeRGB) { + case MODE_DOT3_RGB_EXT: + alpha_shift = key->unit[unit].ScaleShiftA; + rgb_shift = 0; + break; + case MODE_DOT3_RGBA_EXT: + alpha_shift = 0; + rgb_shift = 0; + break; + default: + rgb_shift = key->unit[unit].ScaleShiftRGB; + alpha_shift = key->unit[unit].ScaleShiftA; + break; + } + + /* If we'll do rgb/alpha shifting don't saturate in emit_combine(). + * We don't want to clamp twice. + */ + if (rgb_shift) + rgb_saturate = GL_FALSE; /* saturate after rgb shift */ + else if (need_saturate(key->unit[unit].ModeRGB)) + rgb_saturate = GL_TRUE; + else + rgb_saturate = GL_FALSE; + + if (alpha_shift) + alpha_saturate = GL_FALSE; /* saturate after alpha shift */ + else if (need_saturate(key->unit[unit].ModeA)) + alpha_saturate = GL_TRUE; + else + alpha_saturate = GL_FALSE; + + ir_variable *temp_var = new(p->mem_ctx) ir_variable(glsl_type::vec4_type, + "texenv_combine", + ir_var_temporary); + p->instructions->push_tail(temp_var); + + ir_dereference *deref; + ir_assignment *assign; + ir_rvalue *val; + + /* Emit the RGB and A combine ops + */ + if (key->unit[unit].ModeRGB == key->unit[unit].ModeA && + args_match(key, unit)) { + val = emit_combine(p, unit, + key->unit[unit].NumArgsRGB, + key->unit[unit].ModeRGB, + key->unit[unit].OptRGB); + val = smear(p, val); + if (rgb_saturate) + val = saturate(p, val); + + deref = new(p->mem_ctx) ir_dereference_variable(temp_var); + assign = new(p->mem_ctx) ir_assignment(deref, val, NULL); + p->instructions->push_tail(assign); + } + else if (key->unit[unit].ModeRGB == MODE_DOT3_RGBA_EXT || + key->unit[unit].ModeRGB == MODE_DOT3_RGBA) { + ir_rvalue *val = emit_combine(p, unit, + key->unit[unit].NumArgsRGB, + key->unit[unit].ModeRGB, + key->unit[unit].OptRGB); + val = smear(p, val); + if (rgb_saturate) + val = saturate(p, val); + deref = new(p->mem_ctx) ir_dereference_variable(temp_var); + assign = new(p->mem_ctx) ir_assignment(deref, val, NULL); + p->instructions->push_tail(assign); + } + else { + /* Need to do something to stop from re-emitting identical + * argument calculations here: + */ + val = emit_combine(p, unit, + key->unit[unit].NumArgsRGB, + key->unit[unit].ModeRGB, + key->unit[unit].OptRGB); + val = smear(p, val); + val = new(p->mem_ctx) ir_swizzle(val, 0, 1, 2, 3, 3); + if (rgb_saturate) + val = saturate(p, val); + deref = new(p->mem_ctx) ir_dereference_variable(temp_var); + assign = new(p->mem_ctx) ir_assignment(deref, val, NULL, WRITEMASK_XYZ); + p->instructions->push_tail(assign); + + val = emit_combine(p, unit, + key->unit[unit].NumArgsA, + key->unit[unit].ModeA, + key->unit[unit].OptA); + val = smear(p, val); + val = new(p->mem_ctx) ir_swizzle(val, 3, 3, 3, 3, 1); + if (alpha_saturate) + val = saturate(p, val); + deref = new(p->mem_ctx) ir_dereference_variable(temp_var); + assign = new(p->mem_ctx) ir_assignment(deref, val, NULL, WRITEMASK_W); + p->instructions->push_tail(assign); + } + + deref = new(p->mem_ctx) ir_dereference_variable(temp_var); + + /* Deal with the final shift: + */ + if (alpha_shift || rgb_shift) { + ir_constant *shift; + + if (rgb_shift == alpha_shift) { + shift = new(p->mem_ctx) ir_constant((float)(1 << rgb_shift)); + } + else { + float const_data[4] = { + 1 << rgb_shift, + 1 << rgb_shift, + 1 << rgb_shift, + 1 << alpha_shift + }; + shift = new(p->mem_ctx) ir_constant(glsl_type::vec4_type, + (ir_constant_data *)const_data); + } + + return saturate(p, new(p->mem_ctx) ir_expression(ir_binop_mul, + deref, shift)); + } + else + return deref; +} + + +/** + * Generate instruction for getting a texture source term. + */ + static void load_texture( struct texenv_fragment_program *p, GLuint unit ) + { + ir_dereference *deref; + ir_assignment *assign; + + if (p->src_texture[unit]) + return; + + const GLuint texTarget = p->state->unit[unit].source_index; + ir_rvalue *texcoord; + + if (p->texcoord_tex[unit]) { + texcoord = new(p->mem_ctx) ir_dereference_variable(p->texcoord_tex[unit]); + } + else { + ir_variable *tc_array = p->shader->symbols->get_variable("gl_TexCoord"); + assert(tc_array); + texcoord = new(p->mem_ctx) ir_dereference_variable(tc_array); + ir_rvalue *index = new(p->mem_ctx) ir_constant(unit); + texcoord = new(p->mem_ctx) ir_dereference_array(texcoord, index); + tc_array->max_array_access = MAX2(tc_array->max_array_access, unit); + } + + if (!p->state->unit[unit].enabled) { + p->src_texture[unit] = new(p->mem_ctx) ir_variable(glsl_type::vec4_type, + "dummy_tex", + ir_var_temporary); + p->instructions->push_tail(p->src_texture[unit]); + + deref = new(p->mem_ctx) ir_dereference_variable(p->src_texture[unit]); + assign = new(p->mem_ctx) ir_assignment(deref, + new(p->mem_ctx) ir_constant(0.0f), + NULL); + p->instructions->push_tail(assign); + return ; + } + + const glsl_type *sampler_type = NULL; + int coords = 0; + + switch (texTarget) { + case TEXTURE_1D_INDEX: + if (p->state->unit[unit].shadow) + sampler_type = p->shader->symbols->get_type("sampler1DShadow"); + else + sampler_type = p->shader->symbols->get_type("sampler1D"); + coords = 1; + break; + case TEXTURE_1D_ARRAY_INDEX: + if (p->state->unit[unit].shadow) + sampler_type = p->shader->symbols->get_type("sampler1DArrayShadow"); + else + sampler_type = p->shader->symbols->get_type("sampler1DArray"); + coords = 2; + break; + case TEXTURE_2D_INDEX: + if (p->state->unit[unit].shadow) + sampler_type = p->shader->symbols->get_type("sampler2DShadow"); + else + sampler_type = p->shader->symbols->get_type("sampler2D"); + coords = 2; + break; + case TEXTURE_2D_ARRAY_INDEX: + if (p->state->unit[unit].shadow) + sampler_type = p->shader->symbols->get_type("sampler2DArrayShadow"); + else + sampler_type = p->shader->symbols->get_type("sampler2DArray"); + coords = 3; + break; + case TEXTURE_RECT_INDEX: + if (p->state->unit[unit].shadow) + sampler_type = p->shader->symbols->get_type("sampler2DRectShadow"); + else + sampler_type = p->shader->symbols->get_type("sampler2DRect"); + coords = 2; + break; + case TEXTURE_3D_INDEX: + assert(!p->state->unit[unit].shadow); + sampler_type = p->shader->symbols->get_type("sampler3D"); + coords = 3; + break; + case TEXTURE_CUBE_INDEX: + if (p->state->unit[unit].shadow) + sampler_type = p->shader->symbols->get_type("samplerCubeShadow"); + else + sampler_type = p->shader->symbols->get_type("samplerCube"); + coords = 3; + break; + } + + p->src_texture[unit] = new(p->mem_ctx) ir_variable(glsl_type::vec4_type, + "tex", + ir_var_temporary); + p->instructions->push_tail(p->src_texture[unit]); + + ir_texture *tex = new(p->mem_ctx) ir_texture(ir_tex); + + + char *sampler_name = ralloc_asprintf(p->mem_ctx, "sampler_%d", unit); + ir_variable *sampler = new(p->mem_ctx) ir_variable(sampler_type, + sampler_name, + ir_var_uniform); + p->top_instructions->push_head(sampler); + deref = new(p->mem_ctx) ir_dereference_variable(sampler); + tex->set_sampler(deref); + + tex->coordinate = new(p->mem_ctx) ir_swizzle(texcoord, 0, 1, 2, 3, coords); + + if (p->state->unit[unit].shadow) { + texcoord = texcoord->clone(p->mem_ctx, NULL); + tex->shadow_comparitor = new(p->mem_ctx) ir_swizzle(texcoord, + coords, 0, 0, 0, + 1); + coords++; + } + + texcoord = texcoord->clone(p->mem_ctx, NULL); + tex->projector = new(p->mem_ctx) ir_swizzle(texcoord, 3, 0, 0, 0, 1); + + deref = new(p->mem_ctx) ir_dereference_variable(p->src_texture[unit]); + assign = new(p->mem_ctx) ir_assignment(deref, tex, NULL); + p->instructions->push_tail(assign); + } + +static void +load_texenv_source(struct texenv_fragment_program *p, + GLuint src, GLuint unit) +{ + switch (src) { + case SRC_TEXTURE: + load_texture(p, unit); + break; + + case SRC_TEXTURE0: + case SRC_TEXTURE1: + case SRC_TEXTURE2: + case SRC_TEXTURE3: + case SRC_TEXTURE4: + case SRC_TEXTURE5: + case SRC_TEXTURE6: + case SRC_TEXTURE7: + load_texture(p, src - SRC_TEXTURE0); + break; + + default: + /* not a texture src - do nothing */ + break; + } +} + + +/** + * Generate instructions for loading all texture source terms. + */ +static GLboolean +load_texunit_sources( struct texenv_fragment_program *p, GLuint unit ) +{ + const struct state_key *key = p->state; + GLuint i; + + for (i = 0; i < key->unit[unit].NumArgsRGB; i++) { + load_texenv_source( p, key->unit[unit].OptRGB[i].Source, unit ); + } + + for (i = 0; i < key->unit[unit].NumArgsA; i++) { + load_texenv_source( p, key->unit[unit].OptA[i].Source, unit ); + } + + return GL_TRUE; +} + +/** + * Generate instructions for loading bump map textures. + */ +static void +load_texunit_bumpmap( struct texenv_fragment_program *p, GLuint unit ) +{ + const struct state_key *key = p->state; + GLuint bumpedUnitNr = key->unit[unit].OptRGB[1].Source - SRC_TEXTURE0; + ir_rvalue *bump; + ir_rvalue *texcoord; + ir_variable *rot_mat_0_var, *rot_mat_1_var; + ir_dereference_variable *rot_mat_0, *rot_mat_1; + + rot_mat_0_var = p->shader->symbols->get_variable("gl_MESABumpRotMatrix0"); + rot_mat_1_var = p->shader->symbols->get_variable("gl_MESABumpRotMatrix1"); + rot_mat_0 = new(p->mem_ctx) ir_dereference_variable(rot_mat_0_var); + rot_mat_1 = new(p->mem_ctx) ir_dereference_variable(rot_mat_1_var); + + ir_variable *tc_array = p->shader->symbols->get_variable("gl_TexCoord"); + assert(tc_array); + texcoord = new(p->mem_ctx) ir_dereference_variable(tc_array); + ir_rvalue *index = new(p->mem_ctx) ir_constant(bumpedUnitNr); + texcoord = new(p->mem_ctx) ir_dereference_array(texcoord, index); + tc_array->max_array_access = MAX2(tc_array->max_array_access, unit); + + load_texenv_source( p, unit + SRC_TEXTURE0, unit ); + + /* Apply rot matrix and add coords to be available in next phase. + * dest = Arg1 + (Arg0.xx * rotMat0) + (Arg0.yy * rotMat1) + * note only 2 coords are affected the rest are left unchanged (mul by 0) + */ + ir_dereference *deref; + ir_assignment *assign; + ir_rvalue *bump_x, *bump_y; + + texcoord = smear(p, texcoord); + + /* bump_texcoord = texcoord */ + ir_variable *bumped = new(p->mem_ctx) ir_variable(texcoord->type, + "bump_texcoord", + ir_var_temporary); + p->instructions->push_tail(bumped); + + deref = new(p->mem_ctx) ir_dereference_variable(bumped); + assign = new(p->mem_ctx) ir_assignment(deref, texcoord, NULL); + p->instructions->push_tail(assign); + + /* bump_texcoord.xy += arg0.x * rotmat0 + arg0.y * rotmat1 */ + bump = get_source(p, key->unit[unit].OptRGB[0].Source, unit); + bump_x = new(p->mem_ctx) ir_swizzle(bump, 0, 0, 0, 0, 1); + bump = bump->clone(p->mem_ctx, NULL); + bump_y = new(p->mem_ctx) ir_swizzle(bump, 1, 0, 0, 0, 1); + + bump_x = new(p->mem_ctx) ir_expression(ir_binop_mul, bump_x, rot_mat_0); + bump_y = new(p->mem_ctx) ir_expression(ir_binop_mul, bump_y, rot_mat_1); + + ir_expression *expr; + expr = new(p->mem_ctx) ir_expression(ir_binop_add, bump_x, bump_y); + + deref = new(p->mem_ctx) ir_dereference_variable(bumped); + expr = new(p->mem_ctx) ir_expression(ir_binop_add, + new(p->mem_ctx) ir_swizzle(deref, + 0, 1, 1, 1, + 2), + expr); + + deref = new(p->mem_ctx) ir_dereference_variable(bumped); + assign = new(p->mem_ctx) ir_assignment(deref, expr, NULL, WRITEMASK_XY); + p->instructions->push_tail(assign); + + p->texcoord_tex[bumpedUnitNr] = bumped; +} + +/** + * Applies the fog calculations. + * + * This is basically like the ARB_fragment_prorgam fog options. Note + * that ffvertex_prog.c produces fogcoord for us when + * GL_FOG_COORDINATE_EXT is set to GL_FRAGMENT_DEPTH_EXT. + */ +static ir_rvalue * +emit_fog_instructions(struct texenv_fragment_program *p, + ir_rvalue *fragcolor) +{ + struct state_key *key = p->state; + ir_rvalue *f, *temp; + ir_variable *params, *oparams; + ir_variable *fogcoord; + ir_assignment *assign; + + /* Temporary storage for the whole fog result. Fog calculations + * only affect rgb so we're hanging on to the .a value of fragcolor + * this way. + */ + ir_variable *fog_result = new(p->mem_ctx) ir_variable(glsl_type::vec4_type, + "fog_result", + ir_var_auto); + p->instructions->push_tail(fog_result); + temp = new(p->mem_ctx) ir_dereference_variable(fog_result); + assign = new(p->mem_ctx) ir_assignment(temp, fragcolor, NULL); + p->instructions->push_tail(assign); + + temp = new(p->mem_ctx) ir_dereference_variable(fog_result); + fragcolor = new(p->mem_ctx) ir_swizzle(temp, 0, 1, 2, 3, 3); + + oparams = p->shader->symbols->get_variable("gl_MESAFogParamsOptimized"); + fogcoord = p->shader->symbols->get_variable("gl_FogFragCoord"); + params = p->shader->symbols->get_variable("gl_Fog"); + f = new(p->mem_ctx) ir_dereference_variable(fogcoord); + + ir_variable *f_var = new(p->mem_ctx) ir_variable(glsl_type::float_type, + "fog_factor", ir_var_auto); + p->instructions->push_tail(f_var); + + switch (key->fog_mode) { + case FOG_LINEAR: + /* f = (end - z) / (end - start) + * + * gl_MesaFogParamsOptimized gives us (-1 / (end - start)) and + * (end / (end - start)) so we can generate a single MAD. + */ + temp = new(p->mem_ctx) ir_dereference_variable(oparams); + temp = new(p->mem_ctx) ir_swizzle(temp, 0, 0, 0, 0, 1); + f = new(p->mem_ctx) ir_expression(ir_binop_mul, f, temp); + + temp = new(p->mem_ctx) ir_dereference_variable(oparams); + temp = new(p->mem_ctx) ir_swizzle(temp, 1, 0, 0, 0, 1); + f = new(p->mem_ctx) ir_expression(ir_binop_add, f, temp); + break; + case FOG_EXP: + /* f = e^(-(density * fogcoord)) + * + * gl_MesaFogParamsOptimized gives us density/ln(2) so we can + * use EXP2 which is generally the native instruction without + * having to do any further math on the fog density uniform. + */ + temp = new(p->mem_ctx) ir_dereference_variable(oparams); + temp = new(p->mem_ctx) ir_swizzle(temp, 2, 0, 0, 0, 1); + f = new(p->mem_ctx) ir_expression(ir_binop_mul, f, temp); + f = new(p->mem_ctx) ir_expression(ir_unop_neg, f); + f = new(p->mem_ctx) ir_expression(ir_unop_exp2, f); + break; + case FOG_EXP2: + /* f = e^(-(density * fogcoord)^2) + * + * gl_MesaFogParamsOptimized gives us density/sqrt(ln(2)) so we + * can do this like FOG_EXP but with a squaring after the + * multiply by density. + */ + ir_variable *temp_var = new(p->mem_ctx) ir_variable(glsl_type::float_type, + "fog_temp", + ir_var_auto); + p->instructions->push_tail(temp_var); + + temp = new(p->mem_ctx) ir_dereference_variable(oparams); + temp = new(p->mem_ctx) ir_swizzle(temp, 3, 0, 0, 0, 1); + f = new(p->mem_ctx) ir_expression(ir_binop_mul, + f, temp); + + temp = new(p->mem_ctx) ir_dereference_variable(temp_var); + ir_assignment *assign = new(p->mem_ctx) ir_assignment(temp, f, NULL); + p->instructions->push_tail(assign); + + f = new(p->mem_ctx) ir_dereference_variable(temp_var); + temp = new(p->mem_ctx) ir_dereference_variable(temp_var); + f = new(p->mem_ctx) ir_expression(ir_binop_mul, f, temp); + f = new(p->mem_ctx) ir_expression(ir_unop_neg, f); + f = new(p->mem_ctx) ir_expression(ir_unop_exp2, f); + break; + } + + f = saturate(p, f); + + temp = new(p->mem_ctx) ir_dereference_variable(f_var); + assign = new(p->mem_ctx) ir_assignment(temp, f, NULL); + p->instructions->push_tail(assign); + + f = new(p->mem_ctx) ir_dereference_variable(f_var); + f = new(p->mem_ctx) ir_expression(ir_binop_sub, + new(p->mem_ctx) ir_constant(1.0f), + f); + temp = new(p->mem_ctx) ir_dereference_variable(params); + temp = new(p->mem_ctx) ir_dereference_record(temp, "color"); + temp = new(p->mem_ctx) ir_swizzle(temp, 0, 1, 2, 3, 3); + temp = new(p->mem_ctx) ir_expression(ir_binop_mul, temp, f); + + f = new(p->mem_ctx) ir_dereference_variable(f_var); + f = new(p->mem_ctx) ir_expression(ir_binop_mul, fragcolor, f); + f = new(p->mem_ctx) ir_expression(ir_binop_add, temp, f); + + ir_dereference *deref = new(p->mem_ctx) ir_dereference_variable(fog_result); + assign = new(p->mem_ctx) ir_assignment(deref, f, NULL, WRITEMASK_XYZ); + p->instructions->push_tail(assign); + + return new(p->mem_ctx) ir_dereference_variable(fog_result); +} + +static void +emit_instructions(struct texenv_fragment_program *p) +{ + struct state_key *key = p->state; + GLuint unit; + + if (key->enabled_units) { + /* Zeroth pass - bump map textures first */ + for (unit = 0; unit < key->nr_enabled_units; unit++) { + if (key->unit[unit].enabled && + key->unit[unit].ModeRGB == MODE_BUMP_ENVMAP_ATI) { + load_texunit_bumpmap(p, unit); + } + } + + /* First pass - to support texture_env_crossbar, first identify + * all referenced texture sources and emit texld instructions + * for each: + */ + for (unit = 0; unit < key->nr_enabled_units; unit++) + if (key->unit[unit].enabled) { + load_texunit_sources(p, unit); + p->last_tex_stage = unit; + } + + /* Second pass - emit combine instructions to build final color: + */ + for (unit = 0; unit < key->nr_enabled_units; unit++) { + if (key->unit[unit].enabled) { + p->src_previous = emit_texenv(p, unit); + } + } + } + + ir_rvalue *cf = get_source(p, SRC_PREVIOUS, 0); + ir_dereference_variable *deref; + ir_assignment *assign; + + if (key->separate_specular) { + ir_rvalue *tmp0, *tmp1; + ir_variable *spec_result = new(p->mem_ctx) ir_variable(glsl_type::vec4_type, + "specular_add", + ir_var_temporary); + + p->instructions->push_tail(spec_result); + + deref = new(p->mem_ctx) ir_dereference_variable(spec_result); + assign = new(p->mem_ctx) ir_assignment(deref, cf, NULL); + p->instructions->push_tail(assign); + + deref = new(p->mem_ctx) ir_dereference_variable(spec_result); + tmp0 = new(p->mem_ctx) ir_swizzle(deref, 0, 1, 2, 3, 3); + + ir_variable *secondary = + p->shader->symbols->get_variable("gl_SecondaryColor"); + assert(secondary); + deref = new(p->mem_ctx) ir_dereference_variable(secondary); + tmp1 = new(p->mem_ctx) ir_swizzle(deref, 0, 1, 2, 3, 3); + + tmp0 = new(p->mem_ctx) ir_expression(ir_binop_add, + tmp0, tmp1); + + deref = new(p->mem_ctx) ir_dereference_variable(spec_result); + assign = new(p->mem_ctx) ir_assignment(deref, tmp0, NULL, WRITEMASK_XYZ); + p->instructions->push_tail(assign); + + cf = new(p->mem_ctx) ir_dereference_variable(spec_result); + } + + if (key->fog_enabled) { + cf = emit_fog_instructions(p, cf); + } + + ir_variable *frag_color = p->shader->symbols->get_variable("gl_FragColor"); + assert(frag_color); + deref = new(p->mem_ctx) ir_dereference_variable(frag_color); + assign = new(p->mem_ctx) ir_assignment(deref, cf, NULL); + p->instructions->push_tail(assign); +} + +/** + * Generate a new fragment program which implements the context's + * current texture env/combine mode. + */ +static struct gl_shader_program * +create_new_program(struct gl_context *ctx, struct state_key *key) +{ + struct texenv_fragment_program p; + unsigned int unit; + _mesa_glsl_parse_state *state; + + memset(&p, 0, sizeof(p)); + p.mem_ctx = ralloc_context(NULL); + p.shader = ctx->Driver.NewShader(ctx, 0, GL_FRAGMENT_SHADER); + p.shader->ir = new(p.shader) exec_list; + state = new(p.shader) _mesa_glsl_parse_state(ctx, GL_FRAGMENT_SHADER, + p.shader); + p.shader->symbols = state->symbols; + p.top_instructions = p.shader->ir; + p.instructions = p.shader->ir; + p.state = key; + p.shader_program = ctx->Driver.NewShaderProgram(ctx, 0); + + state->language_version = 120; + _mesa_glsl_initialize_types(state); + _mesa_glsl_initialize_variables(p.instructions, state); + + for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) { + p.src_texture[unit] = NULL; + p.texcoord_tex[unit] = NULL; + } + + p.src_previous = NULL; + + p.last_tex_stage = 0; + + ir_function *main_f = new(p.mem_ctx) ir_function("main"); + p.instructions->push_tail(main_f); + state->symbols->add_function(main_f); + + ir_function_signature *main_sig = + new(p.mem_ctx) ir_function_signature(p.shader->symbols->get_type("void")); + main_sig->is_defined = true; + main_f->add_signature(main_sig); + + p.instructions = &main_sig->body; + if (key->num_draw_buffers) + emit_instructions(&p); + + validate_ir_tree(p.shader->ir); + + while (do_common_optimization(p.shader->ir, false, 32)) + ; + reparent_ir(p.shader->ir, p.shader->ir); + + p.shader->CompileStatus = true; + p.shader->Version = state->language_version; + p.shader->num_builtins_to_link = state->num_builtins_to_link; + p.shader_program->Shaders = + (gl_shader **)malloc(sizeof(*p.shader_program->Shaders)); + p.shader_program->Shaders[0] = p.shader; + p.shader_program->NumShaders = 1; + + _mesa_glsl_link_shader(ctx, p.shader_program); + + /* Set the sampler uniforms, and relink to get them into the linked + * program. + */ + struct gl_fragment_program *fp = p.shader_program->FragmentProgram; + for (unsigned int i = 0; i < MAX_TEXTURE_UNITS; i++) { + char *name = ralloc_asprintf(p.mem_ctx, "sampler_%d", i); + int loc = _mesa_get_uniform_location(ctx, p.shader_program, name); + if (loc != -1) { + /* Avoid using _mesa_uniform() because it flags state + * updates, so if we're generating this shader_program in a + * state update, we end up recursing. Instead, just set the + * value, which is picked up at re-link. + */ + loc = (loc & 0xffff) + (loc >> 16); + int sampler = fp->Base.Parameters->ParameterValues[loc][0]; + fp->Base.SamplerUnits[sampler] = i; + } + } + _mesa_update_shader_textures_used(&fp->Base); + (void) ctx->Driver.ProgramStringNotify(ctx, fp->Base.Target, &fp->Base); + + if (!p.shader_program->LinkStatus) + _mesa_problem(ctx, "Failed to link fixed function fragment shader: %s\n", + p.shader_program->InfoLog); + + ralloc_free(p.mem_ctx); + return p.shader_program; +} + +extern "C" { + +/** + * Return a fragment program which implements the current + * fixed-function texture, fog and color-sum operations. + */ +struct gl_shader_program * +_mesa_get_fixed_func_fragment_program(struct gl_context *ctx) +{ + struct gl_shader_program *shader_program; + struct state_key key; + GLuint keySize; + + keySize = make_state_key(ctx, &key); + + shader_program = (struct gl_shader_program *) + _mesa_search_program_cache(ctx->FragmentProgram.Cache, + &key, keySize); + + if (!shader_program) { + shader_program = create_new_program(ctx, &key); + + _mesa_shader_cache_insert(ctx, ctx->FragmentProgram.Cache, + &key, keySize, shader_program); + } + + return shader_program; +} + +} diff --git a/mesalib/src/mesa/main/get.c b/mesalib/src/mesa/main/get.c index 336304c59..a3cae1cbc 100644 --- a/mesalib/src/mesa/main/get.c +++ b/mesalib/src/mesa/main/get.c @@ -1,2527 +1,2527 @@ -/* - * Copyright (C) 2010 Brian Paul All Rights Reserved. - * Copyright (C) 2010 Intel Corporation - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * Author: Kristian Høgsberg - */ - -#include "glheader.h" -#include "context.h" -#include "enable.h" -#include "enums.h" -#include "extensions.h" -#include "get.h" -#include "macros.h" -#include "mfeatures.h" -#include "mtypes.h" -#include "state.h" -#include "texcompress.h" -#include "framebuffer.h" - -/* This is a table driven implemetation of the glGet*v() functions. - * The basic idea is that most getters just look up an int somewhere - * in struct gl_context and then convert it to a bool or float according to - * which of glGetIntegerv() glGetBooleanv() etc is being called. - * Instead of generating code to do this, we can just record the enum - * value and the offset into struct gl_context in an array of structs. Then - * in glGet*(), we lookup the struct for the enum in question, and use - * the offset to get the int we need. - * - * Sometimes we need to look up a float, a boolean, a bit in a - * bitfield, a matrix or other types instead, so we need to track the - * type of the value in struct gl_context. And sometimes the value isn't in - * struct gl_context but in the drawbuffer, the array object, current texture - * unit, or maybe it's a computed value. So we need to also track - * where or how to find the value. Finally, we sometimes need to - * check that one of a number of extensions are enabled, the GL - * version or flush or call _mesa_update_state(). This is done by - * attaching optional extra information to the value description - * struct, it's sort of like an array of opcodes that describe extra - * checks or actions. - * - * Putting all this together we end up with struct value_desc below, - * and with a couple of macros to help, the table of struct value_desc - * is about as concise as the specification in the old python script. - */ - -#undef CONST - -#define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE ) -#define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \ - ((F) * 65536.0f < INT_MIN) ? INT_MIN : \ - (GLint) ((F) * 65536.0f) ) - -#define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE ) -#define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \ - ((I) < SHRT_MIN) ? INT_MIN : \ - (GLint) ((I) * 65536) ) - -#define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE ) -#define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) ) - -#define BOOLEAN_TO_INT(B) ( (GLint) (B) ) -#define BOOLEAN_TO_INT64(B) ( (GLint64) (B) ) -#define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F ) -#define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 ) - -#define ENUM_TO_INT64(E) ( (GLint64) (E) ) -#define ENUM_TO_FIXED(E) (E) - -enum value_type { - TYPE_INVALID, - TYPE_API_MASK, - TYPE_INT, - TYPE_INT_2, - TYPE_INT_3, - TYPE_INT_4, - TYPE_INT_N, - TYPE_INT64, - TYPE_ENUM, - TYPE_ENUM_2, - TYPE_BOOLEAN, - TYPE_BIT_0, - TYPE_BIT_1, - TYPE_BIT_2, - TYPE_BIT_3, - TYPE_BIT_4, - TYPE_BIT_5, - TYPE_FLOAT, - TYPE_FLOAT_2, - TYPE_FLOAT_3, - TYPE_FLOAT_4, - TYPE_FLOATN, - TYPE_FLOATN_2, - TYPE_FLOATN_3, - TYPE_FLOATN_4, - TYPE_DOUBLEN, - TYPE_MATRIX, - TYPE_MATRIX_T, - TYPE_CONST -}; - -enum value_location { - LOC_BUFFER, - LOC_CONTEXT, - LOC_ARRAY, - LOC_TEXUNIT, - LOC_CUSTOM -}; - -enum value_extra { - EXTRA_END = 0x8000, - EXTRA_VERSION_30, - EXTRA_VERSION_31, - EXTRA_VERSION_32, - EXTRA_VERSION_ES2, - EXTRA_NEW_BUFFERS, - EXTRA_VALID_DRAW_BUFFER, - EXTRA_VALID_TEXTURE_UNIT, - EXTRA_FLUSH_CURRENT, -}; - -#define NO_EXTRA NULL -#define NO_OFFSET 0 - -struct value_desc { - GLenum pname; - GLubyte location; /**< enum value_location */ - GLubyte type; /**< enum value_type */ - int offset; - const int *extra; -}; - -union value { - GLfloat value_float; - GLfloat value_float_4[4]; - GLmatrix *value_matrix; - GLint value_int; - GLint value_int_4[4]; - GLint64 value_int64; - GLenum value_enum; - - /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */ - struct { - GLint n, ints[100]; - } value_int_n; - GLboolean value_bool; -}; - -#define BUFFER_FIELD(field, type) \ - LOC_BUFFER, type, offsetof(struct gl_framebuffer, field) -#define CONTEXT_FIELD(field, type) \ - LOC_CONTEXT, type, offsetof(struct gl_context, field) -#define ARRAY_FIELD(field, type) \ - LOC_ARRAY, type, offsetof(struct gl_array_object, field) -#define CONST(value) \ - LOC_CONTEXT, TYPE_CONST, value - -#define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT) -#define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM) -#define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN) - -#define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT) -#define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2) -#define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64) -#define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM) -#define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2) -#define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN) -#define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0) -#define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1) -#define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2) -#define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3) -#define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4) -#define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5) -#define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT) -#define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2) -#define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3) -#define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4) -#define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX) -#define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T) - -#define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT) -#define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM) -#define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN) - -#define EXT(f) \ - offsetof(struct gl_extensions, f) - -#define EXTRA_EXT(e) \ - static const int extra_##e[] = { \ - EXT(e), EXTRA_END \ - } - -#define EXTRA_EXT2(e1, e2) \ - static const int extra_##e1##_##e2[] = { \ - EXT(e1), EXT(e2), EXTRA_END \ - } - -/* The 'extra' mechanism is a way to specify extra checks (such as - * extensions or specific gl versions) or actions (flush current, new - * buffers) that we need to do before looking up an enum. We need to - * declare them all up front so we can refer to them in the value_desc - * structs below. */ - -static const int extra_new_buffers[] = { - EXTRA_NEW_BUFFERS, - EXTRA_END -}; - -static const int extra_valid_draw_buffer[] = { - EXTRA_VALID_DRAW_BUFFER, - EXTRA_END -}; - -static const int extra_valid_texture_unit[] = { - EXTRA_VALID_TEXTURE_UNIT, - EXTRA_END -}; - -static const int extra_flush_current_valid_texture_unit[] = { - EXTRA_FLUSH_CURRENT, - EXTRA_VALID_TEXTURE_UNIT, - EXTRA_END -}; - -static const int extra_flush_current[] = { - EXTRA_FLUSH_CURRENT, - EXTRA_END -}; - -static const int extra_new_buffers_OES_read_format[] = { - EXTRA_NEW_BUFFERS, - EXT(OES_read_format), - EXTRA_END -}; - -static const int extra_EXT_secondary_color_flush_current[] = { - EXT(EXT_secondary_color), - EXTRA_FLUSH_CURRENT, - EXTRA_END -}; - -static const int extra_EXT_fog_coord_flush_current[] = { - EXT(EXT_fog_coord), - EXTRA_FLUSH_CURRENT, - EXTRA_END -}; - -static const int extra_EXT_texture_integer[] = { - EXT(EXT_texture_integer), - EXTRA_END -}; - -static const int extra_EXT_gpu_shader4[] = { - EXT(EXT_gpu_shader4), - EXTRA_END -}; - - -EXTRA_EXT(ARB_ES2_compatibility); -EXTRA_EXT(ARB_multitexture); -EXTRA_EXT(ARB_texture_cube_map); -EXTRA_EXT(MESA_texture_array); -EXTRA_EXT2(EXT_secondary_color, ARB_vertex_program); -EXTRA_EXT(EXT_secondary_color); -EXTRA_EXT(EXT_fog_coord); -EXTRA_EXT(EXT_texture_lod_bias); -EXTRA_EXT(EXT_texture_filter_anisotropic); -EXTRA_EXT(IBM_rasterpos_clip); -EXTRA_EXT(NV_point_sprite); -EXTRA_EXT(SGIS_generate_mipmap); -EXTRA_EXT(NV_vertex_program); -EXTRA_EXT(NV_fragment_program); -EXTRA_EXT(NV_texture_rectangle); -EXTRA_EXT(EXT_stencil_two_side); -EXTRA_EXT(NV_light_max_exponent); -EXTRA_EXT(EXT_depth_bounds_test); -EXTRA_EXT(ARB_depth_clamp); -EXTRA_EXT(ATI_fragment_shader); -EXTRA_EXT(EXT_framebuffer_blit); -EXTRA_EXT(ARB_shader_objects); -EXTRA_EXT(EXT_provoking_vertex); -EXTRA_EXT(ARB_fragment_shader); -EXTRA_EXT(ARB_fragment_program); -EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample); -EXTRA_EXT(EXT_framebuffer_object); -EXTRA_EXT(APPLE_vertex_array_object); -EXTRA_EXT(ARB_seamless_cube_map); -EXTRA_EXT(EXT_compiled_vertex_array); -EXTRA_EXT(ARB_sync); -EXTRA_EXT(ARB_vertex_shader); -EXTRA_EXT(EXT_transform_feedback); -EXTRA_EXT(ARB_transform_feedback2); -EXTRA_EXT(EXT_pixel_buffer_object); -EXTRA_EXT(ARB_vertex_program); -EXTRA_EXT2(NV_point_sprite, ARB_point_sprite); -EXTRA_EXT2(ARB_fragment_program, NV_fragment_program); -EXTRA_EXT2(ARB_vertex_program, NV_vertex_program); -EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program); -EXTRA_EXT(ARB_vertex_buffer_object); -EXTRA_EXT(ARB_geometry_shader4); -EXTRA_EXT(ARB_copy_buffer); -EXTRA_EXT(EXT_framebuffer_sRGB); - -static const int -extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = { - EXT(ARB_vertex_program), - EXT(ARB_fragment_program), - EXT(NV_vertex_program), - EXTRA_END -}; - -static const int -extra_NV_vertex_program_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = { - EXT(NV_vertex_program), - EXT(ARB_vertex_program), - EXT(ARB_fragment_program), - EXT(NV_vertex_program), - EXTRA_END -}; - -static const int -extra_NV_primitive_restart[] = { - EXT(NV_primitive_restart), - EXTRA_END -}; - -static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END }; -static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END }; -static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END }; - -static const int -extra_ARB_vertex_program_version_es2[] = { - EXT(ARB_vertex_program), - EXTRA_VERSION_ES2, - EXTRA_END -}; - -#define API_OPENGL_BIT (1 << API_OPENGL) -#define API_OPENGLES_BIT (1 << API_OPENGLES) -#define API_OPENGLES2_BIT (1 << API_OPENGLES2) - -/* This is the big table describing all the enums we accept in - * glGet*v(). The table is partitioned into six parts: enums - * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared - * between OpenGL and GLES, enums exclusive to GLES, etc for the - * remaining combinations. When we add the enums to the hash table in - * _mesa_init_get_hash(), we only add the enums for the API we're - * instantiating and the different sections are guarded by #if - * FEATURE_GL etc to make sure we only compile in the enums we may - * need. */ - -static const struct value_desc values[] = { - /* Enums shared between OpenGL, GLES1 and GLES2 */ - { 0, 0, TYPE_API_MASK, - API_OPENGL_BIT | API_OPENGLES_BIT | API_OPENGLES2_BIT, NO_EXTRA}, - { GL_ALPHA_BITS, BUFFER_INT(Visual.alphaBits), extra_new_buffers }, - { GL_BLEND, CONTEXT_BIT0(Color.BlendEnabled), NO_EXTRA }, - { GL_BLEND_SRC, CONTEXT_ENUM(Color.Blend[0].SrcRGB), NO_EXTRA }, - { GL_BLUE_BITS, BUFFER_INT(Visual.blueBits), extra_new_buffers }, - { GL_COLOR_CLEAR_VALUE, CONTEXT_FIELD(Color.ClearColor[0], TYPE_FLOATN_4), NO_EXTRA }, - { GL_COLOR_WRITEMASK, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA }, - { GL_CULL_FACE, CONTEXT_BOOL(Polygon.CullFlag), NO_EXTRA }, - { GL_CULL_FACE_MODE, CONTEXT_ENUM(Polygon.CullFaceMode), NO_EXTRA }, - { GL_DEPTH_BITS, BUFFER_INT(Visual.depthBits), NO_EXTRA }, - { GL_DEPTH_CLEAR_VALUE, CONTEXT_FIELD(Depth.Clear, TYPE_DOUBLEN), NO_EXTRA }, - { GL_DEPTH_FUNC, CONTEXT_ENUM(Depth.Func), NO_EXTRA }, - { GL_DEPTH_RANGE, CONTEXT_FIELD(Viewport.Near, TYPE_FLOATN_2), NO_EXTRA }, - { GL_DEPTH_TEST, CONTEXT_BOOL(Depth.Test), NO_EXTRA }, - { GL_DEPTH_WRITEMASK, CONTEXT_BOOL(Depth.Mask), NO_EXTRA }, - { GL_DITHER, CONTEXT_BOOL(Color.DitherFlag), NO_EXTRA }, - { GL_FRONT_FACE, CONTEXT_ENUM(Polygon.FrontFace), NO_EXTRA }, - { GL_GREEN_BITS, BUFFER_INT(Visual.greenBits), extra_new_buffers }, - { GL_LINE_WIDTH, CONTEXT_FLOAT(Line.Width), NO_EXTRA }, - { GL_ALIASED_LINE_WIDTH_RANGE, CONTEXT_FLOAT2(Const.MinLineWidth), NO_EXTRA }, - { GL_MAX_ELEMENTS_VERTICES, CONTEXT_INT(Const.MaxArrayLockSize), NO_EXTRA }, - { GL_MAX_ELEMENTS_INDICES, CONTEXT_INT(Const.MaxArrayLockSize), NO_EXTRA }, - { GL_MAX_TEXTURE_SIZE, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_context, Const.MaxTextureLevels), NO_EXTRA }, - { GL_MAX_VIEWPORT_DIMS, CONTEXT_INT2(Const.MaxViewportWidth), NO_EXTRA }, - { GL_PACK_ALIGNMENT, CONTEXT_INT(Pack.Alignment), NO_EXTRA }, - { GL_ALIASED_POINT_SIZE_RANGE, CONTEXT_FLOAT2(Const.MinPointSize), NO_EXTRA }, - { GL_POLYGON_OFFSET_FACTOR, CONTEXT_FLOAT(Polygon.OffsetFactor ), NO_EXTRA }, - { GL_POLYGON_OFFSET_UNITS, CONTEXT_FLOAT(Polygon.OffsetUnits ), NO_EXTRA }, - { GL_POLYGON_OFFSET_FILL, CONTEXT_BOOL(Polygon.OffsetFill), NO_EXTRA }, - { GL_RED_BITS, BUFFER_INT(Visual.redBits), extra_new_buffers }, - { GL_SCISSOR_BOX, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA }, - { GL_SCISSOR_TEST, CONTEXT_BOOL(Scissor.Enabled), NO_EXTRA }, - { GL_STENCIL_BITS, BUFFER_INT(Visual.stencilBits), NO_EXTRA }, - { GL_STENCIL_CLEAR_VALUE, CONTEXT_INT(Stencil.Clear), NO_EXTRA }, - { GL_STENCIL_FAIL, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, - { GL_STENCIL_FUNC, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, - { GL_STENCIL_PASS_DEPTH_FAIL, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, - { GL_STENCIL_PASS_DEPTH_PASS, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, - { GL_STENCIL_REF, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA }, - { GL_STENCIL_TEST, CONTEXT_BOOL(Stencil.Enabled), NO_EXTRA }, - { GL_STENCIL_VALUE_MASK, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA }, - { GL_STENCIL_WRITEMASK, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA }, - { GL_SUBPIXEL_BITS, CONTEXT_INT(Const.SubPixelBits), NO_EXTRA }, - { GL_TEXTURE_BINDING_2D, LOC_CUSTOM, TYPE_INT, TEXTURE_2D_INDEX, NO_EXTRA }, - { GL_UNPACK_ALIGNMENT, CONTEXT_INT(Unpack.Alignment), NO_EXTRA }, - { GL_VIEWPORT, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA }, - - /* GL_ARB_multitexture */ - { GL_ACTIVE_TEXTURE_ARB, - LOC_CUSTOM, TYPE_INT, 0, extra_ARB_multitexture }, - - /* Note that all the OES_* extensions require that the Mesa "struct - * gl_extensions" include a member with the name of the extension. - * That structure does not yet include OES extensions (and we're - * not sure whether it will). If it does, all the OES_* - * extensions below should mark the dependency. */ - - /* GL_ARB_texture_cube_map */ - { GL_TEXTURE_BINDING_CUBE_MAP_ARB, LOC_CUSTOM, TYPE_INT, - TEXTURE_CUBE_INDEX, extra_ARB_texture_cube_map }, - { GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_context, Const.MaxCubeTextureLevels), - extra_ARB_texture_cube_map }, /* XXX: OES_texture_cube_map */ - - /* XXX: OES_blend_subtract */ - { GL_BLEND_SRC_RGB_EXT, CONTEXT_ENUM(Color.Blend[0].SrcRGB), NO_EXTRA }, - { GL_BLEND_DST_RGB_EXT, CONTEXT_ENUM(Color.Blend[0].DstRGB), NO_EXTRA }, - { GL_BLEND_SRC_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].SrcA), NO_EXTRA }, - { GL_BLEND_DST_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].DstA), NO_EXTRA }, - - /* GL_BLEND_EQUATION_RGB, which is what we're really after, is - * defined identically to GL_BLEND_EQUATION. */ - { GL_BLEND_EQUATION, CONTEXT_ENUM(Color.Blend[0].EquationRGB), NO_EXTRA }, - { GL_BLEND_EQUATION_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].EquationA), NO_EXTRA }, - - /* GL_ARB_texture_compression */ - { GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, - { GL_COMPRESSED_TEXTURE_FORMATS_ARB, LOC_CUSTOM, TYPE_INT_N, 0, NO_EXTRA }, - - /* GL_ARB_multisample */ - { GL_SAMPLE_ALPHA_TO_COVERAGE_ARB, - CONTEXT_BOOL(Multisample.SampleAlphaToCoverage), NO_EXTRA }, - { GL_SAMPLE_COVERAGE_ARB, CONTEXT_BOOL(Multisample.SampleCoverage), NO_EXTRA }, - { GL_SAMPLE_COVERAGE_VALUE_ARB, - CONTEXT_FLOAT(Multisample.SampleCoverageValue), NO_EXTRA }, - { GL_SAMPLE_COVERAGE_INVERT_ARB, - CONTEXT_BOOL(Multisample.SampleCoverageInvert), NO_EXTRA }, - { GL_SAMPLE_BUFFERS_ARB, BUFFER_INT(Visual.sampleBuffers), NO_EXTRA }, - { GL_SAMPLES_ARB, BUFFER_INT(Visual.samples), NO_EXTRA }, - - /* GL_SGIS_generate_mipmap */ - { GL_GENERATE_MIPMAP_HINT_SGIS, CONTEXT_ENUM(Hint.GenerateMipmap), - extra_SGIS_generate_mipmap }, - - /* GL_ARB_vertex_buffer_object */ - { GL_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, - - /* GL_ARB_vertex_buffer_object */ - /* GL_WEIGHT_ARRAY_BUFFER_BINDING_ARB - not supported */ - { GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0, - extra_ARB_vertex_buffer_object }, - - /* GL_ARB_copy_buffer */ - { GL_COPY_READ_BUFFER, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_copy_buffer }, - { GL_COPY_WRITE_BUFFER, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_copy_buffer }, - - /* GL_OES_read_format */ - { GL_IMPLEMENTATION_COLOR_READ_TYPE_OES, LOC_CUSTOM, TYPE_INT, 0, - extra_new_buffers_OES_read_format }, - { GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES, LOC_CUSTOM, TYPE_INT, 0, - extra_new_buffers_OES_read_format }, - - /* GL_EXT_framebuffer_object */ - { GL_FRAMEBUFFER_BINDING_EXT, BUFFER_INT(Name), - extra_EXT_framebuffer_object }, - { GL_RENDERBUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0, - extra_EXT_framebuffer_object }, - { GL_MAX_RENDERBUFFER_SIZE_EXT, CONTEXT_INT(Const.MaxRenderbufferSize), - extra_EXT_framebuffer_object }, - - /* This entry isn't spec'ed for GLES 2, but is needed for Mesa's - * GLSL: */ - { GL_MAX_CLIP_PLANES, CONTEXT_INT(Const.MaxClipPlanes), NO_EXTRA }, - -#if FEATURE_GL || FEATURE_ES1 - /* Enums in OpenGL and GLES1 */ - { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGLES_BIT, NO_EXTRA }, - { GL_LIGHT0, CONTEXT_BOOL(Light.Light[0].Enabled), NO_EXTRA }, - { GL_LIGHT1, CONTEXT_BOOL(Light.Light[1].Enabled), NO_EXTRA }, - { GL_LIGHT2, CONTEXT_BOOL(Light.Light[2].Enabled), NO_EXTRA }, - { GL_LIGHT3, CONTEXT_BOOL(Light.Light[3].Enabled), NO_EXTRA }, - { GL_LIGHT4, CONTEXT_BOOL(Light.Light[4].Enabled), NO_EXTRA }, - { GL_LIGHT5, CONTEXT_BOOL(Light.Light[5].Enabled), NO_EXTRA }, - { GL_LIGHT6, CONTEXT_BOOL(Light.Light[6].Enabled), NO_EXTRA }, - { GL_LIGHT7, CONTEXT_BOOL(Light.Light[7].Enabled), NO_EXTRA }, - { GL_LIGHTING, CONTEXT_BOOL(Light.Enabled), NO_EXTRA }, - { GL_LIGHT_MODEL_AMBIENT, - CONTEXT_FIELD(Light.Model.Ambient[0], TYPE_FLOATN_4), NO_EXTRA }, - { GL_LIGHT_MODEL_TWO_SIDE, CONTEXT_BOOL(Light.Model.TwoSide), NO_EXTRA }, - { GL_ALPHA_TEST, CONTEXT_BOOL(Color.AlphaEnabled), NO_EXTRA }, - { GL_ALPHA_TEST_FUNC, CONTEXT_ENUM(Color.AlphaFunc), NO_EXTRA }, - { GL_ALPHA_TEST_REF, CONTEXT_FIELD(Color.AlphaRef, TYPE_FLOATN), NO_EXTRA }, - { GL_BLEND_DST, CONTEXT_ENUM(Color.Blend[0].DstRGB), NO_EXTRA }, - { GL_CLIP_PLANE0, CONTEXT_BIT0(Transform.ClipPlanesEnabled), NO_EXTRA }, - { GL_CLIP_PLANE1, CONTEXT_BIT1(Transform.ClipPlanesEnabled), NO_EXTRA }, - { GL_CLIP_PLANE2, CONTEXT_BIT2(Transform.ClipPlanesEnabled), NO_EXTRA }, - { GL_CLIP_PLANE3, CONTEXT_BIT3(Transform.ClipPlanesEnabled), NO_EXTRA }, - { GL_CLIP_PLANE4, CONTEXT_BIT4(Transform.ClipPlanesEnabled), NO_EXTRA }, - { GL_CLIP_PLANE5, CONTEXT_BIT5(Transform.ClipPlanesEnabled), NO_EXTRA }, - { GL_COLOR_MATERIAL, CONTEXT_BOOL(Light.ColorMaterialEnabled), NO_EXTRA }, - { GL_CURRENT_COLOR, - CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR0][0], TYPE_FLOATN_4), - extra_flush_current }, - { GL_CURRENT_NORMAL, - CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_NORMAL][0], TYPE_FLOATN_3), - extra_flush_current }, - { GL_CURRENT_TEXTURE_COORDS, LOC_CUSTOM, TYPE_FLOAT_4, 0, - extra_flush_current_valid_texture_unit }, - { GL_DISTANCE_ATTENUATION_EXT, CONTEXT_FLOAT3(Point.Params[0]), NO_EXTRA }, - { GL_FOG, CONTEXT_BOOL(Fog.Enabled), NO_EXTRA }, - { GL_FOG_COLOR, CONTEXT_FIELD(Fog.Color[0], TYPE_FLOATN_4), NO_EXTRA }, - { GL_FOG_DENSITY, CONTEXT_FLOAT(Fog.Density), NO_EXTRA }, - { GL_FOG_END, CONTEXT_FLOAT(Fog.End), NO_EXTRA }, - { GL_FOG_HINT, CONTEXT_ENUM(Hint.Fog), NO_EXTRA }, - { GL_FOG_MODE, CONTEXT_ENUM(Fog.Mode), NO_EXTRA }, - { GL_FOG_START, CONTEXT_FLOAT(Fog.Start), NO_EXTRA }, - { GL_LINE_SMOOTH, CONTEXT_BOOL(Line.SmoothFlag), NO_EXTRA }, - { GL_LINE_SMOOTH_HINT, CONTEXT_ENUM(Hint.LineSmooth), NO_EXTRA }, - { GL_LINE_WIDTH_RANGE, CONTEXT_FLOAT2(Const.MinLineWidthAA), NO_EXTRA }, - { GL_COLOR_LOGIC_OP, CONTEXT_BOOL(Color.ColorLogicOpEnabled), NO_EXTRA }, - { GL_LOGIC_OP_MODE, CONTEXT_ENUM(Color.LogicOp), NO_EXTRA }, - { GL_MATRIX_MODE, CONTEXT_ENUM(Transform.MatrixMode), NO_EXTRA }, - { GL_MAX_MODELVIEW_STACK_DEPTH, CONST(MAX_MODELVIEW_STACK_DEPTH), NO_EXTRA }, - { GL_MAX_PROJECTION_STACK_DEPTH, CONST(MAX_PROJECTION_STACK_DEPTH), NO_EXTRA }, - { GL_MAX_TEXTURE_STACK_DEPTH, CONST(MAX_TEXTURE_STACK_DEPTH), NO_EXTRA }, - { GL_MODELVIEW_MATRIX, CONTEXT_MATRIX(ModelviewMatrixStack.Top), NO_EXTRA }, - { GL_MODELVIEW_STACK_DEPTH, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_context, ModelviewMatrixStack.Depth), NO_EXTRA }, - { GL_NORMALIZE, CONTEXT_BOOL(Transform.Normalize), NO_EXTRA }, - { GL_PACK_SKIP_IMAGES_EXT, CONTEXT_INT(Pack.SkipImages), NO_EXTRA }, - { GL_PERSPECTIVE_CORRECTION_HINT, CONTEXT_ENUM(Hint.PerspectiveCorrection), NO_EXTRA }, - { GL_POINT_SIZE, CONTEXT_FLOAT(Point.Size), NO_EXTRA }, - { GL_POINT_SIZE_RANGE, CONTEXT_FLOAT2(Const.MinPointSizeAA), NO_EXTRA }, - { GL_POINT_SMOOTH, CONTEXT_BOOL(Point.SmoothFlag), NO_EXTRA }, - { GL_POINT_SMOOTH_HINT, CONTEXT_ENUM(Hint.PointSmooth), NO_EXTRA }, - { GL_POINT_SIZE_MIN_EXT, CONTEXT_FLOAT(Point.MinSize), NO_EXTRA }, - { GL_POINT_SIZE_MAX_EXT, CONTEXT_FLOAT(Point.MaxSize), NO_EXTRA }, - { GL_POINT_FADE_THRESHOLD_SIZE_EXT, CONTEXT_FLOAT(Point.Threshold), NO_EXTRA }, - { GL_PROJECTION_MATRIX, CONTEXT_MATRIX(ProjectionMatrixStack.Top), NO_EXTRA }, - { GL_PROJECTION_STACK_DEPTH, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_context, ProjectionMatrixStack.Depth), NO_EXTRA }, - { GL_RESCALE_NORMAL, CONTEXT_BOOL(Transform.RescaleNormals), NO_EXTRA }, - { GL_SHADE_MODEL, CONTEXT_ENUM(Light.ShadeModel), NO_EXTRA }, - { GL_TEXTURE_2D, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA }, - { GL_TEXTURE_MATRIX, LOC_CUSTOM, TYPE_MATRIX, 0, extra_valid_texture_unit }, - { GL_TEXTURE_STACK_DEPTH, LOC_CUSTOM, TYPE_INT, 0, - extra_valid_texture_unit }, - - { GL_VERTEX_ARRAY, ARRAY_BOOL(Vertex.Enabled), NO_EXTRA }, - { GL_VERTEX_ARRAY_SIZE, ARRAY_INT(Vertex.Size), NO_EXTRA }, - { GL_VERTEX_ARRAY_TYPE, ARRAY_ENUM(Vertex.Type), NO_EXTRA }, - { GL_VERTEX_ARRAY_STRIDE, ARRAY_INT(Vertex.Stride), NO_EXTRA }, - { GL_NORMAL_ARRAY, ARRAY_ENUM(Normal.Enabled), NO_EXTRA }, - { GL_NORMAL_ARRAY_TYPE, ARRAY_ENUM(Normal.Type), NO_EXTRA }, - { GL_NORMAL_ARRAY_STRIDE, ARRAY_INT(Normal.Stride), NO_EXTRA }, - { GL_COLOR_ARRAY, ARRAY_BOOL(Color.Enabled), NO_EXTRA }, - { GL_COLOR_ARRAY_SIZE, ARRAY_INT(Color.Size), NO_EXTRA }, - { GL_COLOR_ARRAY_TYPE, ARRAY_ENUM(Color.Type), NO_EXTRA }, - { GL_COLOR_ARRAY_STRIDE, ARRAY_INT(Color.Stride), NO_EXTRA }, - { GL_TEXTURE_COORD_ARRAY, - LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Enabled), NO_EXTRA }, - { GL_TEXTURE_COORD_ARRAY_SIZE, - LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Size), NO_EXTRA }, - { GL_TEXTURE_COORD_ARRAY_TYPE, - LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Type), NO_EXTRA }, - { GL_TEXTURE_COORD_ARRAY_STRIDE, - LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Stride), NO_EXTRA }, - - /* GL_ARB_ES2_compatibility */ - { GL_SHADER_COMPILER, CONST(1), extra_ARB_ES2_compatibility }, - { GL_MAX_VARYING_VECTORS, CONTEXT_INT(Const.MaxVarying), - extra_ARB_ES2_compatibility }, - { GL_MAX_VERTEX_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, - extra_ARB_ES2_compatibility }, - { GL_MAX_FRAGMENT_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, - extra_ARB_ES2_compatibility }, - - /* GL_ARB_multitexture */ - { GL_MAX_TEXTURE_UNITS_ARB, - CONTEXT_INT(Const.MaxTextureUnits), extra_ARB_multitexture }, - { GL_CLIENT_ACTIVE_TEXTURE_ARB, - LOC_CUSTOM, TYPE_INT, 0, extra_ARB_multitexture }, - - /* GL_ARB_texture_cube_map */ - { GL_TEXTURE_CUBE_MAP_ARB, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA }, - /* S, T, and R are always set at the same time */ - { GL_TEXTURE_GEN_STR_OES, LOC_TEXUNIT, TYPE_BIT_0, - offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA }, - - /* GL_ARB_multisample */ - { GL_MULTISAMPLE_ARB, CONTEXT_BOOL(Multisample.Enabled), NO_EXTRA }, - { GL_SAMPLE_ALPHA_TO_ONE_ARB, CONTEXT_BOOL(Multisample.SampleAlphaToOne), NO_EXTRA }, - - /* GL_ARB_vertex_buffer_object */ - { GL_VERTEX_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_array_object, Vertex.BufferObj), NO_EXTRA }, - { GL_NORMAL_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_array_object, Normal.BufferObj), NO_EXTRA }, - { GL_COLOR_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_array_object, Color.BufferObj), NO_EXTRA }, - { GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA }, - - /* GL_OES_point_sprite */ - { GL_POINT_SPRITE_NV, - CONTEXT_BOOL(Point.PointSprite), - extra_NV_point_sprite_ARB_point_sprite }, - - /* GL_ARB_fragment_shader */ - { GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB, - CONTEXT_INT(Const.FragmentProgram.MaxUniformComponents), - extra_ARB_fragment_shader }, - - /* GL_ARB_vertex_shader */ - { GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB, - CONTEXT_INT(Const.VertexProgram.MaxUniformComponents), - extra_ARB_vertex_shader }, - { GL_MAX_VARYING_FLOATS_ARB, LOC_CUSTOM, TYPE_INT, 0, - extra_ARB_vertex_shader }, - - /* GL_EXT_texture_lod_bias */ - { GL_MAX_TEXTURE_LOD_BIAS_EXT, CONTEXT_FLOAT(Const.MaxTextureLodBias), - extra_EXT_texture_lod_bias }, - - /* GL_EXT_texture_filter_anisotropic */ - { GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, - CONTEXT_FLOAT(Const.MaxTextureMaxAnisotropy), - extra_EXT_texture_filter_anisotropic }, -#endif /* FEATURE_GL || FEATURE_ES1 */ - -#if FEATURE_ES1 - { 0, 0, TYPE_API_MASK, API_OPENGLES_BIT }, - /* XXX: OES_matrix_get */ - { GL_MODELVIEW_MATRIX_FLOAT_AS_INT_BITS_OES }, - { GL_PROJECTION_MATRIX_FLOAT_AS_INT_BITS_OES }, - { GL_TEXTURE_MATRIX_FLOAT_AS_INT_BITS_OES }, - - /* OES_point_size_array */ - { GL_POINT_SIZE_ARRAY_OES, ARRAY_FIELD(PointSize.Enabled, TYPE_BOOLEAN) }, - { GL_POINT_SIZE_ARRAY_TYPE_OES, ARRAY_FIELD(PointSize.Type, TYPE_ENUM) }, - { GL_POINT_SIZE_ARRAY_STRIDE_OES, ARRAY_FIELD(PointSize.Stride, TYPE_INT) }, - { GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES, LOC_CUSTOM, TYPE_INT, 0 }, -#endif /* FEATURE_ES1 */ - -#if FEATURE_GL || FEATURE_ES2 - { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGLES2_BIT, NO_EXTRA }, - /* This entry isn't spec'ed for GLES 2, but is needed for Mesa's GLSL: */ - { GL_MAX_LIGHTS, CONTEXT_INT(Const.MaxLights), NO_EXTRA }, - { GL_MAX_TEXTURE_COORDS_ARB, /* == GL_MAX_TEXTURE_COORDS_NV */ - CONTEXT_INT(Const.MaxTextureCoordUnits), - extra_ARB_fragment_program_NV_fragment_program }, - - /* GL_ARB_draw_buffers */ - { GL_MAX_DRAW_BUFFERS_ARB, CONTEXT_INT(Const.MaxDrawBuffers), NO_EXTRA }, - - { GL_BLEND_COLOR_EXT, CONTEXT_FIELD(Color.BlendColor[0], TYPE_FLOATN_4), NO_EXTRA }, - /* GL_ARB_fragment_program */ - { GL_MAX_TEXTURE_IMAGE_UNITS_ARB, /* == GL_MAX_TEXTURE_IMAGE_UNITS_NV */ - CONTEXT_INT(Const.MaxTextureImageUnits), - extra_ARB_fragment_program_NV_fragment_program }, - { GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, - CONTEXT_INT(Const.MaxVertexTextureImageUnits), extra_ARB_vertex_shader }, - { GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB, - CONTEXT_INT(Const.MaxCombinedTextureImageUnits), - extra_ARB_vertex_shader }, - - /* GL_ARB_shader_objects - * Actually, this token isn't part of GL_ARB_shader_objects, but is - * close enough for now. */ - { GL_CURRENT_PROGRAM, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_shader_objects }, - - /* OpenGL 2.0 */ - { GL_STENCIL_BACK_FUNC, CONTEXT_ENUM(Stencil.Function[1]), NO_EXTRA }, - { GL_STENCIL_BACK_VALUE_MASK, CONTEXT_INT(Stencil.ValueMask[1]), NO_EXTRA }, - { GL_STENCIL_BACK_WRITEMASK, CONTEXT_INT(Stencil.WriteMask[1]), NO_EXTRA }, - { GL_STENCIL_BACK_REF, CONTEXT_INT(Stencil.Ref[1]), NO_EXTRA }, - { GL_STENCIL_BACK_FAIL, CONTEXT_ENUM(Stencil.FailFunc[1]), NO_EXTRA }, - { GL_STENCIL_BACK_PASS_DEPTH_FAIL, CONTEXT_ENUM(Stencil.ZFailFunc[1]), NO_EXTRA }, - { GL_STENCIL_BACK_PASS_DEPTH_PASS, CONTEXT_ENUM(Stencil.ZPassFunc[1]), NO_EXTRA }, - - { GL_MAX_VERTEX_ATTRIBS_ARB, - CONTEXT_INT(Const.VertexProgram.MaxAttribs), - extra_ARB_vertex_program_version_es2 }, - - /* OES_texture_3D */ - { GL_TEXTURE_BINDING_3D, LOC_CUSTOM, TYPE_INT, TEXTURE_3D_INDEX, NO_EXTRA }, - { GL_MAX_3D_TEXTURE_SIZE, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_context, Const.Max3DTextureLevels), NO_EXTRA }, - - /* GL_ARB_fragment_program/OES_standard_derivatives */ - { GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB, - CONTEXT_ENUM(Hint.FragmentShaderDerivative), extra_ARB_fragment_shader }, -#endif /* FEATURE_GL || FEATURE_ES2 */ - -#if FEATURE_ES2 - /* Enums unique to OpenGL ES 2.0 */ - { 0, 0, TYPE_API_MASK, API_OPENGLES2_BIT, NO_EXTRA }, - { GL_MAX_FRAGMENT_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, - { GL_MAX_VARYING_VECTORS, CONTEXT_INT(Const.MaxVarying), NO_EXTRA }, - { GL_MAX_VERTEX_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, - { GL_SHADER_COMPILER, CONST(1), NO_EXTRA }, - /* OES_get_program_binary */ - { GL_NUM_SHADER_BINARY_FORMATS, CONST(0), NO_EXTRA }, - { GL_SHADER_BINARY_FORMATS, CONST(0), NO_EXTRA }, -#endif /* FEATURE_ES2 */ - -#if FEATURE_GL - /* Remaining enums are only in OpenGL */ - { 0, 0, TYPE_API_MASK, API_OPENGL_BIT, NO_EXTRA }, - { GL_ACCUM_RED_BITS, BUFFER_INT(Visual.accumRedBits), NO_EXTRA }, - { GL_ACCUM_GREEN_BITS, BUFFER_INT(Visual.accumGreenBits), NO_EXTRA }, - { GL_ACCUM_BLUE_BITS, BUFFER_INT(Visual.accumBlueBits), NO_EXTRA }, - { GL_ACCUM_ALPHA_BITS, BUFFER_INT(Visual.accumAlphaBits), NO_EXTRA }, - { GL_ACCUM_CLEAR_VALUE, CONTEXT_FIELD(Accum.ClearColor[0], TYPE_FLOATN_4), NO_EXTRA }, - { GL_ALPHA_BIAS, CONTEXT_FLOAT(Pixel.AlphaBias), NO_EXTRA }, - { GL_ALPHA_SCALE, CONTEXT_FLOAT(Pixel.AlphaScale), NO_EXTRA }, - { GL_ATTRIB_STACK_DEPTH, CONTEXT_INT(AttribStackDepth), NO_EXTRA }, - { GL_AUTO_NORMAL, CONTEXT_BOOL(Eval.AutoNormal), NO_EXTRA }, - { GL_AUX_BUFFERS, BUFFER_INT(Visual.numAuxBuffers), NO_EXTRA }, - { GL_BLUE_BIAS, CONTEXT_FLOAT(Pixel.BlueBias), NO_EXTRA }, - { GL_BLUE_SCALE, CONTEXT_FLOAT(Pixel.BlueScale), NO_EXTRA }, - { GL_CLIENT_ATTRIB_STACK_DEPTH, CONTEXT_INT(ClientAttribStackDepth), NO_EXTRA }, - { GL_COLOR_MATERIAL_FACE, CONTEXT_ENUM(Light.ColorMaterialFace), NO_EXTRA }, - { GL_COLOR_MATERIAL_PARAMETER, CONTEXT_ENUM(Light.ColorMaterialMode), NO_EXTRA }, - { GL_CURRENT_INDEX, - CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_COLOR_INDEX][0]), - extra_flush_current }, - { GL_CURRENT_RASTER_COLOR, - CONTEXT_FIELD(Current.RasterColor[0], TYPE_FLOATN_4), NO_EXTRA }, - { GL_CURRENT_RASTER_DISTANCE, CONTEXT_FLOAT(Current.RasterDistance), NO_EXTRA }, - { GL_CURRENT_RASTER_INDEX, CONST(1), NO_EXTRA }, - { GL_CURRENT_RASTER_POSITION, CONTEXT_FLOAT4(Current.RasterPos[0]), NO_EXTRA }, - { GL_CURRENT_RASTER_SECONDARY_COLOR, - CONTEXT_FIELD(Current.RasterSecondaryColor[0], TYPE_FLOATN_4), NO_EXTRA }, - { GL_CURRENT_RASTER_TEXTURE_COORDS, LOC_CUSTOM, TYPE_FLOAT_4, 0, - extra_valid_texture_unit }, - { GL_CURRENT_RASTER_POSITION_VALID, CONTEXT_BOOL(Current.RasterPosValid), NO_EXTRA }, - { GL_DEPTH_BIAS, CONTEXT_FLOAT(Pixel.DepthBias), NO_EXTRA }, - { GL_DEPTH_SCALE, CONTEXT_FLOAT(Pixel.DepthScale), NO_EXTRA }, - { GL_DOUBLEBUFFER, BUFFER_INT(Visual.doubleBufferMode), NO_EXTRA }, - { GL_DRAW_BUFFER, BUFFER_ENUM(ColorDrawBuffer[0]), NO_EXTRA }, - { GL_EDGE_FLAG, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA }, - { GL_FEEDBACK_BUFFER_SIZE, CONTEXT_INT(Feedback.BufferSize), NO_EXTRA }, - { GL_FEEDBACK_BUFFER_TYPE, CONTEXT_ENUM(Feedback.Type), NO_EXTRA }, - { GL_FOG_INDEX, CONTEXT_FLOAT(Fog.Index), NO_EXTRA }, - { GL_GREEN_BIAS, CONTEXT_FLOAT(Pixel.GreenBias), NO_EXTRA }, - { GL_GREEN_SCALE, CONTEXT_FLOAT(Pixel.GreenScale), NO_EXTRA }, - { GL_INDEX_BITS, BUFFER_INT(Visual.indexBits), extra_new_buffers }, - { GL_INDEX_CLEAR_VALUE, CONTEXT_INT(Color.ClearIndex), NO_EXTRA }, - { GL_INDEX_MODE, CONST(0) , NO_EXTRA}, - { GL_INDEX_OFFSET, CONTEXT_INT(Pixel.IndexOffset), NO_EXTRA }, - { GL_INDEX_SHIFT, CONTEXT_INT(Pixel.IndexShift), NO_EXTRA }, - { GL_INDEX_WRITEMASK, CONTEXT_INT(Color.IndexMask), NO_EXTRA }, - { GL_LIGHT_MODEL_COLOR_CONTROL, CONTEXT_ENUM(Light.Model.ColorControl), NO_EXTRA }, - { GL_LIGHT_MODEL_LOCAL_VIEWER, CONTEXT_BOOL(Light.Model.LocalViewer), NO_EXTRA }, - { GL_LINE_STIPPLE, CONTEXT_BOOL(Line.StippleFlag), NO_EXTRA }, - { GL_LINE_STIPPLE_PATTERN, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, - { GL_LINE_STIPPLE_REPEAT, CONTEXT_INT(Line.StippleFactor), NO_EXTRA }, - { GL_LINE_WIDTH_GRANULARITY, CONTEXT_FLOAT(Const.LineWidthGranularity), NO_EXTRA }, - { GL_LIST_BASE, CONTEXT_INT(List.ListBase), NO_EXTRA }, - { GL_LIST_INDEX, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, - { GL_LIST_MODE, LOC_CUSTOM, TYPE_ENUM, 0, NO_EXTRA }, - { GL_INDEX_LOGIC_OP, CONTEXT_BOOL(Color.IndexLogicOpEnabled), NO_EXTRA }, - { GL_MAP1_COLOR_4, CONTEXT_BOOL(Eval.Map1Color4), NO_EXTRA }, - { GL_MAP1_GRID_DOMAIN, CONTEXT_FLOAT2(Eval.MapGrid1u1), NO_EXTRA }, - { GL_MAP1_GRID_SEGMENTS, CONTEXT_INT(Eval.MapGrid1un), NO_EXTRA }, - { GL_MAP1_INDEX, CONTEXT_BOOL(Eval.Map1Index), NO_EXTRA }, - { GL_MAP1_NORMAL, CONTEXT_BOOL(Eval.Map1Normal), NO_EXTRA }, - { GL_MAP1_TEXTURE_COORD_1, CONTEXT_BOOL(Eval.Map1TextureCoord1), NO_EXTRA }, - { GL_MAP1_TEXTURE_COORD_2, CONTEXT_BOOL(Eval.Map1TextureCoord2), NO_EXTRA }, - { GL_MAP1_TEXTURE_COORD_3, CONTEXT_BOOL(Eval.Map1TextureCoord3), NO_EXTRA }, - { GL_MAP1_TEXTURE_COORD_4, CONTEXT_BOOL(Eval.Map1TextureCoord4), NO_EXTRA }, - { GL_MAP1_VERTEX_3, CONTEXT_BOOL(Eval.Map1Vertex3), NO_EXTRA }, - { GL_MAP1_VERTEX_4, CONTEXT_BOOL(Eval.Map1Vertex4), NO_EXTRA }, - { GL_MAP2_COLOR_4, CONTEXT_BOOL(Eval.Map2Color4), NO_EXTRA }, - { GL_MAP2_GRID_DOMAIN, LOC_CUSTOM, TYPE_FLOAT_4, 0, NO_EXTRA }, - { GL_MAP2_GRID_SEGMENTS, CONTEXT_INT2(Eval.MapGrid2un), NO_EXTRA }, - { GL_MAP2_INDEX, CONTEXT_BOOL(Eval.Map2Index), NO_EXTRA }, - { GL_MAP2_NORMAL, CONTEXT_BOOL(Eval.Map2Normal), NO_EXTRA }, - { GL_MAP2_TEXTURE_COORD_1, CONTEXT_BOOL(Eval.Map2TextureCoord1), NO_EXTRA }, - { GL_MAP2_TEXTURE_COORD_2, CONTEXT_BOOL(Eval.Map2TextureCoord2), NO_EXTRA }, - { GL_MAP2_TEXTURE_COORD_3, CONTEXT_BOOL(Eval.Map2TextureCoord3), NO_EXTRA }, - { GL_MAP2_TEXTURE_COORD_4, CONTEXT_BOOL(Eval.Map2TextureCoord4), NO_EXTRA }, - { GL_MAP2_VERTEX_3, CONTEXT_BOOL(Eval.Map2Vertex3), NO_EXTRA }, - { GL_MAP2_VERTEX_4, CONTEXT_BOOL(Eval.Map2Vertex4), NO_EXTRA }, - { GL_MAP_COLOR, CONTEXT_BOOL(Pixel.MapColorFlag), NO_EXTRA }, - { GL_MAP_STENCIL, CONTEXT_BOOL(Pixel.MapStencilFlag), NO_EXTRA }, - { GL_MAX_ATTRIB_STACK_DEPTH, CONST(MAX_ATTRIB_STACK_DEPTH), NO_EXTRA }, - { GL_MAX_CLIENT_ATTRIB_STACK_DEPTH, CONST(MAX_CLIENT_ATTRIB_STACK_DEPTH), NO_EXTRA }, - - { GL_MAX_EVAL_ORDER, CONST(MAX_EVAL_ORDER), NO_EXTRA }, - { GL_MAX_LIST_NESTING, CONST(MAX_LIST_NESTING), NO_EXTRA }, - { GL_MAX_NAME_STACK_DEPTH, CONST(MAX_NAME_STACK_DEPTH), NO_EXTRA }, - { GL_MAX_PIXEL_MAP_TABLE, CONST(MAX_PIXEL_MAP_TABLE), NO_EXTRA }, - { GL_NAME_STACK_DEPTH, CONTEXT_INT(Select.NameStackDepth), NO_EXTRA }, - { GL_PACK_LSB_FIRST, CONTEXT_BOOL(Pack.LsbFirst), NO_EXTRA }, - { GL_PACK_ROW_LENGTH, CONTEXT_INT(Pack.RowLength), NO_EXTRA }, - { GL_PACK_SKIP_PIXELS, CONTEXT_INT(Pack.SkipPixels), NO_EXTRA }, - { GL_PACK_SKIP_ROWS, CONTEXT_INT(Pack.SkipRows), NO_EXTRA }, - { GL_PACK_SWAP_BYTES, CONTEXT_BOOL(Pack.SwapBytes), NO_EXTRA }, - { GL_PACK_IMAGE_HEIGHT_EXT, CONTEXT_INT(Pack.ImageHeight), NO_EXTRA }, - { GL_PACK_INVERT_MESA, CONTEXT_BOOL(Pack.Invert), NO_EXTRA }, - { GL_PIXEL_MAP_A_TO_A_SIZE, CONTEXT_INT(PixelMaps.AtoA.Size), NO_EXTRA }, - { GL_PIXEL_MAP_B_TO_B_SIZE, CONTEXT_INT(PixelMaps.BtoB.Size), NO_EXTRA }, - { GL_PIXEL_MAP_G_TO_G_SIZE, CONTEXT_INT(PixelMaps.GtoG.Size), NO_EXTRA }, - { GL_PIXEL_MAP_I_TO_A_SIZE, CONTEXT_INT(PixelMaps.ItoA.Size), NO_EXTRA }, - { GL_PIXEL_MAP_I_TO_B_SIZE, CONTEXT_INT(PixelMaps.ItoB.Size), NO_EXTRA }, - { GL_PIXEL_MAP_I_TO_G_SIZE, CONTEXT_INT(PixelMaps.ItoG.Size), NO_EXTRA }, - { GL_PIXEL_MAP_I_TO_I_SIZE, CONTEXT_INT(PixelMaps.ItoI.Size), NO_EXTRA }, - { GL_PIXEL_MAP_I_TO_R_SIZE, CONTEXT_INT(PixelMaps.ItoR.Size), NO_EXTRA }, - { GL_PIXEL_MAP_R_TO_R_SIZE, CONTEXT_INT(PixelMaps.RtoR.Size), NO_EXTRA }, - { GL_PIXEL_MAP_S_TO_S_SIZE, CONTEXT_INT(PixelMaps.StoS.Size), NO_EXTRA }, - { GL_POINT_SIZE_GRANULARITY, CONTEXT_FLOAT(Const.PointSizeGranularity), NO_EXTRA }, - { GL_POLYGON_MODE, CONTEXT_ENUM2(Polygon.FrontMode), NO_EXTRA }, - { GL_POLYGON_OFFSET_BIAS_EXT, CONTEXT_FLOAT(Polygon.OffsetUnits), NO_EXTRA }, - { GL_POLYGON_OFFSET_POINT, CONTEXT_BOOL(Polygon.OffsetPoint), NO_EXTRA }, - { GL_POLYGON_OFFSET_LINE, CONTEXT_BOOL(Polygon.OffsetLine), NO_EXTRA }, - { GL_POLYGON_SMOOTH, CONTEXT_BOOL(Polygon.SmoothFlag), NO_EXTRA }, - { GL_POLYGON_SMOOTH_HINT, CONTEXT_ENUM(Hint.PolygonSmooth), NO_EXTRA }, - { GL_POLYGON_STIPPLE, CONTEXT_BOOL(Polygon.StippleFlag), NO_EXTRA }, - { GL_READ_BUFFER, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, - { GL_RED_BIAS, CONTEXT_FLOAT(Pixel.RedBias), NO_EXTRA }, - { GL_RED_SCALE, CONTEXT_FLOAT(Pixel.RedScale), NO_EXTRA }, - { GL_RENDER_MODE, CONTEXT_ENUM(RenderMode), NO_EXTRA }, - { GL_RGBA_MODE, CONST(1), NO_EXTRA }, - { GL_SELECTION_BUFFER_SIZE, CONTEXT_INT(Select.BufferSize), NO_EXTRA }, - { GL_SHARED_TEXTURE_PALETTE_EXT, CONTEXT_BOOL(Texture.SharedPalette), NO_EXTRA }, - - { GL_STEREO, BUFFER_INT(Visual.stereoMode), NO_EXTRA }, - - { GL_TEXTURE_1D, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA }, - { GL_TEXTURE_3D, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA }, - { GL_TEXTURE_1D_ARRAY_EXT, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA }, - { GL_TEXTURE_2D_ARRAY_EXT, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA }, - - { GL_TEXTURE_BINDING_1D, LOC_CUSTOM, TYPE_INT, TEXTURE_1D_INDEX, NO_EXTRA }, - { GL_TEXTURE_BINDING_1D_ARRAY, LOC_CUSTOM, TYPE_INT, - TEXTURE_1D_ARRAY_INDEX, extra_MESA_texture_array }, - { GL_TEXTURE_BINDING_2D_ARRAY, LOC_CUSTOM, TYPE_INT, - TEXTURE_1D_ARRAY_INDEX, extra_MESA_texture_array }, - { GL_MAX_ARRAY_TEXTURE_LAYERS_EXT, - CONTEXT_INT(Const.MaxArrayTextureLayers), extra_MESA_texture_array }, - - { GL_TEXTURE_GEN_S, LOC_TEXUNIT, TYPE_BIT_0, - offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA }, - { GL_TEXTURE_GEN_T, LOC_TEXUNIT, TYPE_BIT_1, - offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA }, - { GL_TEXTURE_GEN_R, LOC_TEXUNIT, TYPE_BIT_2, - offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA }, - { GL_TEXTURE_GEN_Q, LOC_TEXUNIT, TYPE_BIT_3, - offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA }, - { GL_UNPACK_LSB_FIRST, CONTEXT_BOOL(Unpack.LsbFirst), NO_EXTRA }, - { GL_UNPACK_ROW_LENGTH, CONTEXT_INT(Unpack.RowLength), NO_EXTRA }, - { GL_UNPACK_SKIP_PIXELS, CONTEXT_INT(Unpack.SkipPixels), NO_EXTRA }, - { GL_UNPACK_SKIP_ROWS, CONTEXT_INT(Unpack.SkipRows), NO_EXTRA }, - { GL_UNPACK_SWAP_BYTES, CONTEXT_BOOL(Unpack.SwapBytes), NO_EXTRA }, - { GL_UNPACK_SKIP_IMAGES_EXT, CONTEXT_INT(Unpack.SkipImages), NO_EXTRA }, - { GL_UNPACK_IMAGE_HEIGHT_EXT, CONTEXT_INT(Unpack.ImageHeight), NO_EXTRA }, - { GL_UNPACK_CLIENT_STORAGE_APPLE, CONTEXT_BOOL(Unpack.ClientStorage), NO_EXTRA }, - { GL_ZOOM_X, CONTEXT_FLOAT(Pixel.ZoomX), NO_EXTRA }, - { GL_ZOOM_Y, CONTEXT_FLOAT(Pixel.ZoomY), NO_EXTRA }, - - /* Vertex arrays */ - { GL_VERTEX_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, - { GL_NORMAL_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, - { GL_COLOR_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, - { GL_INDEX_ARRAY, ARRAY_BOOL(Index.Enabled), NO_EXTRA }, - { GL_INDEX_ARRAY_TYPE, ARRAY_ENUM(Index.Type), NO_EXTRA }, - { GL_INDEX_ARRAY_STRIDE, ARRAY_INT(Index.Stride), NO_EXTRA }, - { GL_INDEX_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, - { GL_TEXTURE_COORD_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, - { GL_EDGE_FLAG_ARRAY, ARRAY_BOOL(EdgeFlag.Enabled), NO_EXTRA }, - { GL_EDGE_FLAG_ARRAY_STRIDE, ARRAY_INT(EdgeFlag.Stride), NO_EXTRA }, - { GL_EDGE_FLAG_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, - - /* GL_ARB_texture_compression */ - { GL_TEXTURE_COMPRESSION_HINT_ARB, CONTEXT_INT(Hint.TextureCompression), NO_EXTRA }, - - /* GL_EXT_compiled_vertex_array */ - { GL_ARRAY_ELEMENT_LOCK_FIRST_EXT, CONTEXT_INT(Array.LockFirst), - extra_EXT_compiled_vertex_array }, - { GL_ARRAY_ELEMENT_LOCK_COUNT_EXT, CONTEXT_INT(Array.LockCount), - extra_EXT_compiled_vertex_array }, - - /* GL_ARB_transpose_matrix */ - { GL_TRANSPOSE_MODELVIEW_MATRIX_ARB, - CONTEXT_MATRIX_T(ModelviewMatrixStack), NO_EXTRA }, - { GL_TRANSPOSE_PROJECTION_MATRIX_ARB, - CONTEXT_MATRIX_T(ProjectionMatrixStack.Top), NO_EXTRA }, - { GL_TRANSPOSE_TEXTURE_MATRIX_ARB, CONTEXT_MATRIX_T(TextureMatrixStack), NO_EXTRA }, - - /* GL_EXT_secondary_color */ - { GL_COLOR_SUM_EXT, CONTEXT_BOOL(Fog.ColorSumEnabled), - extra_EXT_secondary_color_ARB_vertex_program }, - { GL_CURRENT_SECONDARY_COLOR_EXT, - CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR1][0], TYPE_FLOATN_4), - extra_EXT_secondary_color_flush_current }, - { GL_SECONDARY_COLOR_ARRAY_EXT, ARRAY_BOOL(SecondaryColor.Enabled), - extra_EXT_secondary_color }, - { GL_SECONDARY_COLOR_ARRAY_TYPE_EXT, ARRAY_ENUM(SecondaryColor.Type), - extra_EXT_secondary_color }, - { GL_SECONDARY_COLOR_ARRAY_STRIDE_EXT, ARRAY_INT(SecondaryColor.Stride), - extra_EXT_secondary_color }, - { GL_SECONDARY_COLOR_ARRAY_SIZE_EXT, ARRAY_INT(SecondaryColor.Size), - extra_EXT_secondary_color }, - - /* GL_EXT_fog_coord */ - { GL_CURRENT_FOG_COORDINATE_EXT, - CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_FOG][0]), - extra_EXT_fog_coord_flush_current }, - { GL_FOG_COORDINATE_ARRAY_EXT, ARRAY_BOOL(FogCoord.Enabled), - extra_EXT_fog_coord }, - { GL_FOG_COORDINATE_ARRAY_TYPE_EXT, ARRAY_ENUM(FogCoord.Type), - extra_EXT_fog_coord }, - { GL_FOG_COORDINATE_ARRAY_STRIDE_EXT, ARRAY_INT(FogCoord.Stride), - extra_EXT_fog_coord }, - { GL_FOG_COORDINATE_SOURCE_EXT, CONTEXT_ENUM(Fog.FogCoordinateSource), - extra_EXT_fog_coord }, - - /* GL_IBM_rasterpos_clip */ - { GL_RASTER_POSITION_UNCLIPPED_IBM, - CONTEXT_BOOL(Transform.RasterPositionUnclipped), - extra_IBM_rasterpos_clip }, - - /* GL_NV_point_sprite */ - { GL_POINT_SPRITE_R_MODE_NV, - CONTEXT_ENUM(Point.SpriteRMode), extra_NV_point_sprite }, - { GL_POINT_SPRITE_COORD_ORIGIN, CONTEXT_ENUM(Point.SpriteOrigin), - extra_NV_point_sprite_ARB_point_sprite }, - - /* GL_NV_vertex_program */ - { GL_VERTEX_PROGRAM_BINDING_NV, LOC_CUSTOM, TYPE_INT, 0, - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY0_NV, ARRAY_BOOL(VertexAttrib[0].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY1_NV, ARRAY_BOOL(VertexAttrib[1].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY2_NV, ARRAY_BOOL(VertexAttrib[2].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY3_NV, ARRAY_BOOL(VertexAttrib[3].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY4_NV, ARRAY_BOOL(VertexAttrib[4].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY5_NV, ARRAY_BOOL(VertexAttrib[5].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY6_NV, ARRAY_BOOL(VertexAttrib[6].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY7_NV, ARRAY_BOOL(VertexAttrib[7].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY8_NV, ARRAY_BOOL(VertexAttrib[8].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY9_NV, ARRAY_BOOL(VertexAttrib[9].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY10_NV, ARRAY_BOOL(VertexAttrib[10].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY11_NV, ARRAY_BOOL(VertexAttrib[11].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY12_NV, ARRAY_BOOL(VertexAttrib[12].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY13_NV, ARRAY_BOOL(VertexAttrib[13].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY14_NV, ARRAY_BOOL(VertexAttrib[14].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY15_NV, ARRAY_BOOL(VertexAttrib[15].Enabled), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB0_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[0]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB1_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[1]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB2_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[2]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB3_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[3]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB4_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[4]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB5_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[5]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB6_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[6]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB7_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[7]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB8_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[8]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB9_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[9]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB10_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[10]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB11_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[11]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB12_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[12]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB13_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[13]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB14_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[14]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB15_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[15]), - extra_NV_vertex_program }, - - /* GL_NV_fragment_program */ - { GL_FRAGMENT_PROGRAM_NV, CONTEXT_BOOL(FragmentProgram.Enabled), - extra_NV_fragment_program }, - { GL_FRAGMENT_PROGRAM_BINDING_NV, LOC_CUSTOM, TYPE_INT, 0, - extra_NV_fragment_program }, - { GL_MAX_FRAGMENT_PROGRAM_LOCAL_PARAMETERS_NV, - CONST(MAX_NV_FRAGMENT_PROGRAM_PARAMS), - extra_NV_fragment_program }, - - /* GL_NV_texture_rectangle */ - { GL_TEXTURE_RECTANGLE_NV, - LOC_CUSTOM, TYPE_BOOLEAN, 0, extra_NV_texture_rectangle }, - { GL_TEXTURE_BINDING_RECTANGLE_NV, - LOC_CUSTOM, TYPE_INT, TEXTURE_RECT_INDEX, extra_NV_texture_rectangle }, - { GL_MAX_RECTANGLE_TEXTURE_SIZE_NV, - CONTEXT_INT(Const.MaxTextureRectSize), extra_NV_texture_rectangle }, - - /* GL_EXT_stencil_two_side */ - { GL_STENCIL_TEST_TWO_SIDE_EXT, CONTEXT_BOOL(Stencil.TestTwoSide), - extra_EXT_stencil_two_side }, - { GL_ACTIVE_STENCIL_FACE_EXT, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, - - /* GL_NV_light_max_exponent */ - { GL_MAX_SHININESS_NV, CONTEXT_FLOAT(Const.MaxShininess), - extra_NV_light_max_exponent }, - { GL_MAX_SPOT_EXPONENT_NV, CONTEXT_FLOAT(Const.MaxSpotExponent), - extra_NV_light_max_exponent }, - - /* GL_NV_primitive_restart */ - { GL_PRIMITIVE_RESTART_NV, CONTEXT_BOOL(Array.PrimitiveRestart), - extra_NV_primitive_restart }, - { GL_PRIMITIVE_RESTART_INDEX_NV, CONTEXT_INT(Array.RestartIndex), - extra_NV_primitive_restart }, - - /* GL_ARB_vertex_buffer_object */ - { GL_INDEX_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_array_object, Index.BufferObj), NO_EXTRA }, - { GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_array_object, EdgeFlag.BufferObj), NO_EXTRA }, - { GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_array_object, SecondaryColor.BufferObj), NO_EXTRA }, - { GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_array_object, FogCoord.BufferObj), NO_EXTRA }, - - /* GL_EXT_pixel_buffer_object */ - { GL_PIXEL_PACK_BUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0, - extra_EXT_pixel_buffer_object }, - { GL_PIXEL_UNPACK_BUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0, - extra_EXT_pixel_buffer_object }, - - /* GL_ARB_vertex_program */ - { GL_VERTEX_PROGRAM_ARB, /* == GL_VERTEX_PROGRAM_NV */ - CONTEXT_BOOL(VertexProgram.Enabled), - extra_ARB_vertex_program_NV_vertex_program }, - { GL_VERTEX_PROGRAM_POINT_SIZE_ARB, /* == GL_VERTEX_PROGRAM_POINT_SIZE_NV*/ - CONTEXT_BOOL(VertexProgram.PointSizeEnabled), - extra_ARB_vertex_program_NV_vertex_program }, - { GL_VERTEX_PROGRAM_TWO_SIDE_ARB, /* == GL_VERTEX_PROGRAM_TWO_SIDE_NV */ - CONTEXT_BOOL(VertexProgram.TwoSideEnabled), - extra_ARB_vertex_program_NV_vertex_program }, - { GL_MAX_PROGRAM_MATRIX_STACK_DEPTH_ARB, /* == GL_MAX_TRACK_MATRIX_STACK_DEPTH_NV */ - CONTEXT_INT(Const.MaxProgramMatrixStackDepth), - extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program }, - { GL_MAX_PROGRAM_MATRICES_ARB, /* == GL_MAX_TRACK_MATRICES_NV */ - CONTEXT_INT(Const.MaxProgramMatrices), - extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program }, - { GL_CURRENT_MATRIX_STACK_DEPTH_ARB, /* == GL_CURRENT_MATRIX_STACK_DEPTH_NV */ - LOC_CUSTOM, TYPE_INT, 0, - extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program }, - - { GL_CURRENT_MATRIX_ARB, /* == GL_CURRENT_MATRIX_NV */ - LOC_CUSTOM, TYPE_MATRIX, 0, - extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program }, - { GL_TRANSPOSE_CURRENT_MATRIX_ARB, /* == GL_CURRENT_MATRIX_NV */ - LOC_CUSTOM, TYPE_MATRIX, 0, - extra_ARB_vertex_program_ARB_fragment_program }, - - { GL_PROGRAM_ERROR_POSITION_ARB, /* == GL_PROGRAM_ERROR_POSITION_NV */ - CONTEXT_INT(Program.ErrorPos), - extra_NV_vertex_program_ARB_vertex_program_ARB_fragment_program_NV_vertex_program }, - - /* GL_ARB_fragment_program */ - { GL_FRAGMENT_PROGRAM_ARB, CONTEXT_BOOL(FragmentProgram.Enabled), - extra_ARB_fragment_program }, - - /* GL_EXT_depth_bounds_test */ - { GL_DEPTH_BOUNDS_TEST_EXT, CONTEXT_BOOL(Depth.BoundsTest), - extra_EXT_depth_bounds_test }, - { GL_DEPTH_BOUNDS_EXT, CONTEXT_FLOAT2(Depth.BoundsMin), - extra_EXT_depth_bounds_test }, - - /* GL_ARB_depth_clamp*/ - { GL_DEPTH_CLAMP, CONTEXT_BOOL(Transform.DepthClamp), - extra_ARB_depth_clamp }, - - /* GL_ARB_draw_buffers */ - { GL_DRAW_BUFFER0_ARB, BUFFER_ENUM(ColorDrawBuffer[0]), NO_EXTRA }, - { GL_DRAW_BUFFER1_ARB, BUFFER_ENUM(ColorDrawBuffer[1]), - extra_valid_draw_buffer }, - { GL_DRAW_BUFFER2_ARB, BUFFER_ENUM(ColorDrawBuffer[2]), - extra_valid_draw_buffer }, - { GL_DRAW_BUFFER3_ARB, BUFFER_ENUM(ColorDrawBuffer[3]), - extra_valid_draw_buffer }, - { GL_DRAW_BUFFER4_ARB, BUFFER_ENUM(ColorDrawBuffer[4]), - extra_valid_draw_buffer }, - { GL_DRAW_BUFFER5_ARB, BUFFER_ENUM(ColorDrawBuffer[5]), - extra_valid_draw_buffer }, - { GL_DRAW_BUFFER6_ARB, BUFFER_ENUM(ColorDrawBuffer[6]), - extra_valid_draw_buffer }, - { GL_DRAW_BUFFER7_ARB, BUFFER_ENUM(ColorDrawBuffer[7]), - extra_valid_draw_buffer }, - - /* GL_ATI_fragment_shader */ - { GL_NUM_FRAGMENT_REGISTERS_ATI, CONST(6), extra_ATI_fragment_shader }, - { GL_NUM_FRAGMENT_CONSTANTS_ATI, CONST(8), extra_ATI_fragment_shader }, - { GL_NUM_PASSES_ATI, CONST(2), extra_ATI_fragment_shader }, - { GL_NUM_INSTRUCTIONS_PER_PASS_ATI, CONST(8), extra_ATI_fragment_shader }, - { GL_NUM_INSTRUCTIONS_TOTAL_ATI, CONST(16), extra_ATI_fragment_shader }, - { GL_COLOR_ALPHA_PAIRING_ATI, CONST(GL_TRUE), extra_ATI_fragment_shader }, - { GL_NUM_LOOPBACK_COMPONENTS_ATI, CONST(3), extra_ATI_fragment_shader }, - { GL_NUM_INPUT_INTERPOLATOR_COMPONENTS_ATI, - CONST(3), extra_ATI_fragment_shader }, - - /* GL_EXT_framebuffer_object */ - { GL_MAX_COLOR_ATTACHMENTS_EXT, CONTEXT_INT(Const.MaxColorAttachments), - extra_EXT_framebuffer_object }, - - /* GL_EXT_framebuffer_blit - * NOTE: GL_DRAW_FRAMEBUFFER_BINDING_EXT == GL_FRAMEBUFFER_BINDING_EXT */ - { GL_READ_FRAMEBUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0, - extra_EXT_framebuffer_blit }, - - /* GL_EXT_provoking_vertex */ - { GL_PROVOKING_VERTEX_EXT, - CONTEXT_BOOL(Light.ProvokingVertex), extra_EXT_provoking_vertex }, - { GL_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION_EXT, - CONTEXT_BOOL(Const.QuadsFollowProvokingVertexConvention), - extra_EXT_provoking_vertex }, - - /* GL_ARB_framebuffer_object */ - { GL_MAX_SAMPLES, CONTEXT_INT(Const.MaxSamples), - extra_ARB_framebuffer_object_EXT_framebuffer_multisample }, - - /* GL_APPLE_vertex_array_object */ - { GL_VERTEX_ARRAY_BINDING_APPLE, ARRAY_INT(Name), - extra_APPLE_vertex_array_object }, - - /* GL_ARB_seamless_cube_map */ - { GL_TEXTURE_CUBE_MAP_SEAMLESS, - CONTEXT_BOOL(Texture.CubeMapSeamless), extra_ARB_seamless_cube_map }, - - /* GL_ARB_sync */ - { GL_MAX_SERVER_WAIT_TIMEOUT, - CONTEXT_INT64(Const.MaxServerWaitTimeout), extra_ARB_sync }, - - /* GL_EXT_texture_integer */ - { GL_RGBA_INTEGER_MODE_EXT, BUFFER_BOOL(_IntegerColor), - extra_EXT_texture_integer }, - - /* GL_EXT_transform_feedback */ - { GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, LOC_CUSTOM, TYPE_INT, 0, - extra_EXT_transform_feedback }, - { GL_RASTERIZER_DISCARD, CONTEXT_BOOL(TransformFeedback.RasterDiscard), - extra_EXT_transform_feedback }, - { GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS, - CONTEXT_INT(Const.MaxTransformFeedbackInterleavedComponents), - extra_EXT_transform_feedback }, - { GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS, - CONTEXT_INT(Const.MaxTransformFeedbackSeparateAttribs), - extra_EXT_transform_feedback }, - { GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS, - CONTEXT_INT(Const.MaxTransformFeedbackSeparateComponents), - extra_EXT_transform_feedback }, - - /* GL_ARB_transform_feedback2 */ - { GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED, LOC_CUSTOM, TYPE_BOOLEAN, 0, - extra_ARB_transform_feedback2 }, - { GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE, LOC_CUSTOM, TYPE_BOOLEAN, 0, - extra_ARB_transform_feedback2 }, - { GL_TRANSFORM_FEEDBACK_BINDING, LOC_CUSTOM, TYPE_INT, 0, - extra_ARB_transform_feedback2 }, - - /* GL_ARB_geometry_shader4 */ - { GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_ARB, - CONTEXT_INT(Const.GeometryProgram.MaxGeometryTextureImageUnits), - extra_ARB_geometry_shader4 }, - { GL_MAX_GEOMETRY_OUTPUT_VERTICES_ARB, - CONTEXT_INT(Const.GeometryProgram.MaxGeometryOutputVertices), - extra_ARB_geometry_shader4 }, - { GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_ARB, - CONTEXT_INT(Const.GeometryProgram.MaxGeometryTotalOutputComponents), - extra_ARB_geometry_shader4 }, - { GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_ARB, - CONTEXT_INT(Const.GeometryProgram.MaxGeometryUniformComponents), - extra_ARB_geometry_shader4 }, - { GL_MAX_GEOMETRY_VARYING_COMPONENTS_ARB, - CONTEXT_INT(Const.GeometryProgram.MaxGeometryVaryingComponents), - extra_ARB_geometry_shader4 }, - { GL_MAX_VERTEX_VARYING_COMPONENTS_ARB, - CONTEXT_INT(Const.GeometryProgram.MaxVertexVaryingComponents), - extra_ARB_geometry_shader4 }, - - /* GL_EXT_gpu_shader4 / GL 3.0 */ - { GL_MIN_PROGRAM_TEXEL_OFFSET, - CONTEXT_INT(Const.MinProgramTexelOffset), - extra_EXT_gpu_shader4 }, - { GL_MAX_PROGRAM_TEXEL_OFFSET, - CONTEXT_INT(Const.MaxProgramTexelOffset), - extra_EXT_gpu_shader4 }, - - /* GL 3.0 */ - { GL_NUM_EXTENSIONS, LOC_CUSTOM, TYPE_INT, 0, extra_version_30 }, - { GL_MAJOR_VERSION, CONTEXT_INT(VersionMajor), extra_version_30 }, - { GL_MINOR_VERSION, CONTEXT_INT(VersionMinor), extra_version_30 }, - { GL_CONTEXT_FLAGS, CONTEXT_INT(Const.ContextFlags), extra_version_30 }, - - /* GL3.0 / GL_EXT_framebuffer_sRGB */ - { GL_FRAMEBUFFER_SRGB_EXT, CONTEXT_BOOL(Color.sRGBEnabled), extra_EXT_framebuffer_sRGB }, - { GL_FRAMEBUFFER_SRGB_CAPABLE_EXT, BUFFER_INT(Visual.sRGBCapable), extra_EXT_framebuffer_sRGB }, - - /* GL 3.1 */ - /* NOTE: different enum values for GL_PRIMITIVE_RESTART_NV - * vs. GL_PRIMITIVE_RESTART! - */ - { GL_PRIMITIVE_RESTART, CONTEXT_BOOL(Array.PrimitiveRestart), - extra_version_31 }, - { GL_PRIMITIVE_RESTART_INDEX, CONTEXT_INT(Array.RestartIndex), - extra_version_31 }, - - - /* GL 3.2 */ - { GL_CONTEXT_PROFILE_MASK, CONTEXT_INT(Const.ProfileMask), - extra_version_32 }, -#endif /* FEATURE_GL */ -}; - -/* All we need now is a way to look up the value struct from the enum. - * The code generated by gcc for the old generated big switch - * statement is a big, balanced, open coded if/else tree, essentially - * an unrolled binary search. It would be natural to sort the new - * enum table and use bsearch(), but we will use a read-only hash - * table instead. bsearch() has a nice guaranteed worst case - * performance, but we're also guaranteed to hit that worst case - * (log2(n) iterations) for about half the enums. Instead, using an - * open addressing hash table, we can find the enum on the first try - * for 80% of the enums, 1 collision for 10% and never more than 5 - * collisions for any enum (typical numbers). And the code is very - * simple, even though it feels a little magic. */ - -static unsigned short table[1024]; -static const int prime_factor = 89, prime_step = 281; - -#ifdef GET_DEBUG -static void -print_table_stats(void) -{ - int i, j, collisions[11], count, hash, mask; - const struct value_desc *d; - - count = 0; - mask = Elements(table) - 1; - memset(collisions, 0, sizeof collisions); - - for (i = 0; i < Elements(table); i++) { - if (!table[i]) - continue; - count++; - d = &values[table[i]]; - hash = (d->pname * prime_factor); - j = 0; - while (1) { - if (values[table[hash & mask]].pname == d->pname) - break; - hash += prime_step; - j++; - } - - if (j < 10) - collisions[j]++; - else - collisions[10]++; - } - - printf("number of enums: %d (total %d)\n", count, Elements(values)); - for (i = 0; i < Elements(collisions) - 1; i++) - if (collisions[i] > 0) - printf(" %d enums with %d %scollisions\n", - collisions[i], i, i == 10 ? "or more " : ""); -} -#endif - -/** - * Initialize the enum hash for a given API - * - * This is called from one_time_init() to insert the enum values that - * are valid for the API in question into the enum hash table. - * - * \param the current context, for determining the API in question - */ -void _mesa_init_get_hash(struct gl_context *ctx) -{ - int i, hash, index, mask; - int api_mask = 0, api_bit; - - mask = Elements(table) - 1; - api_bit = 1 << ctx->API; - - for (i = 0; i < Elements(values); i++) { - if (values[i].type == TYPE_API_MASK) { - api_mask = values[i].offset; - continue; - } - if (!(api_mask & api_bit)) - continue; - - hash = (values[i].pname * prime_factor) & mask; - while (1) { - index = hash & mask; - if (!table[index]) { - table[index] = i; - break; - } - hash += prime_step; - } - } - -#ifdef GET_DEBUG - print_table_stats(); -#endif -} - -/** - * Handle irregular enums - * - * Some values don't conform to the "well-known type at context - * pointer + offset" pattern, so we have this function to catch all - * the corner cases. Typically, it's a computed value or a one-off - * pointer to a custom struct or something. - * - * In this case we can't return a pointer to the value, so we'll have - * to use the temporary variable 'v' declared back in the calling - * glGet*v() function to store the result. - * - * \param ctx the current context - * \param d the struct value_desc that describes the enum - * \param v pointer to the tmp declared in the calling glGet*v() function - */ -static void -find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v) -{ - struct gl_buffer_object *buffer_obj; - struct gl_client_array *array; - GLuint unit, *p; - - switch (d->pname) { - case GL_TEXTURE_1D: - case GL_TEXTURE_2D: - case GL_TEXTURE_3D: - case GL_TEXTURE_1D_ARRAY_EXT: - case GL_TEXTURE_2D_ARRAY_EXT: - case GL_TEXTURE_CUBE_MAP_ARB: - case GL_TEXTURE_RECTANGLE_NV: - v->value_bool = _mesa_IsEnabled(d->pname); - break; - - case GL_LINE_STIPPLE_PATTERN: - /* This is the only GLushort, special case it here by promoting - * to an int rather than introducing a new type. */ - v->value_int = ctx->Line.StipplePattern; - break; - - case GL_CURRENT_RASTER_TEXTURE_COORDS: - unit = ctx->Texture.CurrentUnit; - v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0]; - v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1]; - v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2]; - v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3]; - break; - - case GL_CURRENT_TEXTURE_COORDS: - unit = ctx->Texture.CurrentUnit; - v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0]; - v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1]; - v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2]; - v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3]; - break; - - case GL_COLOR_WRITEMASK: - v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0; - v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0; - v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0; - v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0; - break; - - case GL_EDGE_FLAG: - v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0; - break; - - case GL_READ_BUFFER: - v->value_enum = ctx->ReadBuffer->ColorReadBuffer; - break; - - case GL_MAP2_GRID_DOMAIN: - v->value_float_4[0] = ctx->Eval.MapGrid2u1; - v->value_float_4[1] = ctx->Eval.MapGrid2u2; - v->value_float_4[2] = ctx->Eval.MapGrid2v1; - v->value_float_4[3] = ctx->Eval.MapGrid2v2; - break; - - case GL_TEXTURE_STACK_DEPTH: - unit = ctx->Texture.CurrentUnit; - v->value_int = ctx->TextureMatrixStack[unit].Depth + 1; - break; - case GL_TEXTURE_MATRIX: - unit = ctx->Texture.CurrentUnit; - v->value_matrix = ctx->TextureMatrixStack[unit].Top; - break; - - case GL_TEXTURE_COORD_ARRAY: - case GL_TEXTURE_COORD_ARRAY_SIZE: - case GL_TEXTURE_COORD_ARRAY_TYPE: - case GL_TEXTURE_COORD_ARRAY_STRIDE: - array = &ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture]; - v->value_int = *(GLuint *) ((char *) array + d->offset); - break; - - case GL_ACTIVE_TEXTURE_ARB: - v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit; - break; - case GL_CLIENT_ACTIVE_TEXTURE_ARB: - v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture; - break; - - case GL_MODELVIEW_STACK_DEPTH: - case GL_PROJECTION_STACK_DEPTH: - v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1; - break; - - case GL_MAX_TEXTURE_SIZE: - case GL_MAX_3D_TEXTURE_SIZE: - case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB: - p = (GLuint *) ((char *) ctx + d->offset); - v->value_int = 1 << (*p - 1); - break; - - case GL_SCISSOR_BOX: - v->value_int_4[0] = ctx->Scissor.X; - v->value_int_4[1] = ctx->Scissor.Y; - v->value_int_4[2] = ctx->Scissor.Width; - v->value_int_4[3] = ctx->Scissor.Height; - break; - - case GL_LIST_INDEX: - v->value_int = - ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0; - break; - case GL_LIST_MODE: - if (!ctx->CompileFlag) - v->value_enum = 0; - else if (ctx->ExecuteFlag) - v->value_enum = GL_COMPILE_AND_EXECUTE; - else - v->value_enum = GL_COMPILE; - break; - - case GL_VIEWPORT: - v->value_int_4[0] = ctx->Viewport.X; - v->value_int_4[1] = ctx->Viewport.Y; - v->value_int_4[2] = ctx->Viewport.Width; - v->value_int_4[3] = ctx->Viewport.Height; - break; - - case GL_ACTIVE_STENCIL_FACE_EXT: - v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT; - break; - - case GL_STENCIL_FAIL: - v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace]; - break; - case GL_STENCIL_FUNC: - v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace]; - break; - case GL_STENCIL_PASS_DEPTH_FAIL: - v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace]; - break; - case GL_STENCIL_PASS_DEPTH_PASS: - v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace]; - break; - case GL_STENCIL_REF: - v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace]; - break; - case GL_STENCIL_VALUE_MASK: - v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace]; - break; - case GL_STENCIL_WRITEMASK: - v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace]; - break; - - case GL_NUM_EXTENSIONS: - v->value_int = _mesa_get_extension_count(ctx); - break; - - case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES: - v->value_int = _mesa_get_color_read_type(ctx); - break; - case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES: - v->value_int = _mesa_get_color_read_format(ctx); - break; - - case GL_CURRENT_MATRIX_STACK_DEPTH_ARB: - v->value_int = ctx->CurrentStack->Depth + 1; - break; - case GL_CURRENT_MATRIX_ARB: - case GL_TRANSPOSE_CURRENT_MATRIX_ARB: - v->value_matrix = ctx->CurrentStack->Top; - break; - - case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB: - v->value_int = _mesa_get_compressed_formats(ctx, NULL, GL_FALSE); - break; - case GL_COMPRESSED_TEXTURE_FORMATS_ARB: - v->value_int_n.n = - _mesa_get_compressed_formats(ctx, v->value_int_n.ints, GL_FALSE); - ASSERT(v->value_int_n.n <= 100); - break; - - case GL_MAX_VARYING_FLOATS_ARB: - v->value_int = ctx->Const.MaxVarying * 4; - break; - - /* Various object names */ - - case GL_TEXTURE_BINDING_1D: - case GL_TEXTURE_BINDING_2D: - case GL_TEXTURE_BINDING_3D: - case GL_TEXTURE_BINDING_1D_ARRAY_EXT: - case GL_TEXTURE_BINDING_2D_ARRAY_EXT: - case GL_TEXTURE_BINDING_CUBE_MAP_ARB: - case GL_TEXTURE_BINDING_RECTANGLE_NV: - unit = ctx->Texture.CurrentUnit; - v->value_int = - ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name; - break; - - /* GL_ARB_vertex_buffer_object */ - case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB: - case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB: - case GL_COLOR_ARRAY_BUFFER_BINDING_ARB: - case GL_INDEX_ARRAY_BUFFER_BINDING_ARB: - case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB: - case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB: - case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB: - buffer_obj = (struct gl_buffer_object *) - ((char *) ctx->Array.ArrayObj + d->offset); - v->value_int = buffer_obj->Name; - break; - case GL_ARRAY_BUFFER_BINDING_ARB: - v->value_int = ctx->Array.ArrayBufferObj->Name; - break; - case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB: - v->value_int = - ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].BufferObj->Name; - break; - case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB: - v->value_int = ctx->Array.ElementArrayBufferObj->Name; - break; - - /* ARB_copy_buffer */ - case GL_COPY_READ_BUFFER: - v->value_int = ctx->CopyReadBuffer->Name; - break; - case GL_COPY_WRITE_BUFFER: - v->value_int = ctx->CopyWriteBuffer->Name; - break; - - case GL_FRAGMENT_PROGRAM_BINDING_NV: - v->value_int = - ctx->FragmentProgram.Current ? ctx->FragmentProgram.Current->Base.Id : 0; - break; - case GL_VERTEX_PROGRAM_BINDING_NV: - v->value_int = - ctx->VertexProgram.Current ? ctx->VertexProgram.Current->Base.Id : 0; - break; - case GL_PIXEL_PACK_BUFFER_BINDING_EXT: - v->value_int = ctx->Pack.BufferObj->Name; - break; - case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT: - v->value_int = ctx->Unpack.BufferObj->Name; - break; - case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING: - v->value_int = ctx->TransformFeedback.CurrentBuffer->Name; - break; - case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED: - v->value_int = ctx->TransformFeedback.CurrentObject->Paused; - break; - case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE: - v->value_int = ctx->TransformFeedback.CurrentObject->Active; - break; - case GL_TRANSFORM_FEEDBACK_BINDING: - v->value_int = ctx->TransformFeedback.CurrentObject->Name; - break; - case GL_CURRENT_PROGRAM: - v->value_int = - ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0; - break; - case GL_READ_FRAMEBUFFER_BINDING_EXT: - v->value_int = ctx->ReadBuffer->Name; - break; - case GL_RENDERBUFFER_BINDING_EXT: - v->value_int = - ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0; - break; - case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES: - v->value_int = ctx->Array.ArrayObj->PointSize.BufferObj->Name; - break; - - case GL_MAX_VERTEX_UNIFORM_VECTORS: - v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4; - break; - - case GL_MAX_FRAGMENT_UNIFORM_VECTORS: - v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4; - break; - } -} - -/** - * Check extra constraints on a struct value_desc descriptor - * - * If a struct value_desc has a non-NULL extra pointer, it means that - * there are a number of extra constraints to check or actions to - * perform. The extras is just an integer array where each integer - * encode different constraints or actions. - * - * \param ctx current context - * \param func name of calling glGet*v() function for error reporting - * \param d the struct value_desc that has the extra constraints - * - * \return GL_FALSE if one of the constraints was not satisfied, - * otherwise GL_TRUE. - */ -static GLboolean -check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d) -{ - const GLuint version = ctx->VersionMajor * 10 + ctx->VersionMinor; - int total, enabled; - const int *e; - - total = 0; - enabled = 0; - for (e = d->extra; *e != EXTRA_END; e++) - switch (*e) { - case EXTRA_VERSION_30: - if (version >= 30) { - total++; - enabled++; - } - break; - case EXTRA_VERSION_31: - if (version >= 31) { - total++; - enabled++; - } - break; - case EXTRA_VERSION_32: - if (version >= 32) { - total++; - enabled++; - } - break; - case EXTRA_VERSION_ES2: - if (ctx->API == API_OPENGLES2) { - total++; - enabled++; - } - break; - case EXTRA_NEW_BUFFERS: - if (ctx->NewState & _NEW_BUFFERS) - _mesa_update_state(ctx); - break; - case EXTRA_FLUSH_CURRENT: - FLUSH_CURRENT(ctx, 0); - break; - case EXTRA_VALID_DRAW_BUFFER: - if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) { - _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)", - func, d->pname - GL_DRAW_BUFFER0_ARB); - return GL_FALSE; - } - break; - case EXTRA_VALID_TEXTURE_UNIT: - if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) { - _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)", - func, ctx->Texture.CurrentUnit); - return GL_FALSE; - } - break; - case EXTRA_END: - break; - default: /* *e is a offset into the extension struct */ - total++; - if (*(GLboolean *) ((char *) &ctx->Extensions + *e)) - enabled++; - break; - } - - if (total > 0 && enabled == 0) { - _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func, - _mesa_lookup_enum_by_nr(d->pname)); - return GL_FALSE; - } - - return GL_TRUE; -} - -static const struct value_desc error_value = - { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA }; - -/** - * Find the struct value_desc corresponding to the enum 'pname'. - * - * We hash the enum value to get an index into the 'table' array, - * which holds the index in the 'values' array of struct value_desc. - * Once we've found the entry, we do the extra checks, if any, then - * look up the value and return a pointer to it. - * - * If the value has to be computed (for example, it's the result of a - * function call or we need to add 1 to it), we use the tmp 'v' to - * store the result. - * - * \param func name of glGet*v() func for error reporting - * \param pname the enum value we're looking up - * \param p is were we return the pointer to the value - * \param v a tmp union value variable in the calling glGet*v() function - * - * \return the struct value_desc corresponding to the enum or a struct - * value_desc of TYPE_INVALID if not found. This lets the calling - * glGet*v() function jump right into a switch statement and - * handle errors there instead of having to check for NULL. - */ -static const struct value_desc * -find_value(const char *func, GLenum pname, void **p, union value *v) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_texture_unit *unit; - int mask, hash; - const struct value_desc *d; - - mask = Elements(table) - 1; - hash = (pname * prime_factor); - while (1) { - d = &values[table[hash & mask]]; - - /* If the enum isn't valid, the hash walk ends with index 0, - * which is the API mask entry at the beginning of values[]. */ - if (unlikely(d->type == TYPE_API_MASK)) { - _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func, - _mesa_lookup_enum_by_nr(pname)); - return &error_value; - } - - if (likely(d->pname == pname)) - break; - - hash += prime_step; - } - - if (unlikely(d->extra && !check_extra(ctx, func, d))) - return &error_value; - - switch (d->location) { - case LOC_BUFFER: - *p = ((char *) ctx->DrawBuffer + d->offset); - return d; - case LOC_CONTEXT: - *p = ((char *) ctx + d->offset); - return d; - case LOC_ARRAY: - *p = ((char *) ctx->Array.ArrayObj + d->offset); - return d; - case LOC_TEXUNIT: - unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; - *p = ((char *) unit + d->offset); - return d; - case LOC_CUSTOM: - find_custom_value(ctx, d, v); - *p = v; - return d; - default: - assert(0); - break; - } - - /* silence warning */ - return &error_value; -} - -static const int transpose[] = { - 0, 4, 8, 12, - 1, 5, 9, 13, - 2, 6, 10, 14, - 3, 7, 11, 15 -}; - -void GLAPIENTRY -_mesa_GetBooleanv(GLenum pname, GLboolean *params) -{ - const struct value_desc *d; - union value v; - GLmatrix *m; - int shift, i; - void *p; - - d = find_value("glGetBooleanv", pname, &p, &v); - switch (d->type) { - case TYPE_INVALID: - break; - case TYPE_CONST: - params[0] = INT_TO_BOOLEAN(d->offset); - break; - - case TYPE_FLOAT_4: - case TYPE_FLOATN_4: - params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]); - case TYPE_FLOAT_3: - case TYPE_FLOATN_3: - params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]); - case TYPE_FLOAT_2: - case TYPE_FLOATN_2: - params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]); - case TYPE_FLOAT: - case TYPE_FLOATN: - params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]); - break; - - case TYPE_DOUBLEN: - params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]); - break; - - case TYPE_INT_4: - params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]); - case TYPE_INT_3: - params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]); - case TYPE_INT_2: - case TYPE_ENUM_2: - params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]); - case TYPE_INT: - case TYPE_ENUM: - params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]); - break; - - case TYPE_INT_N: - for (i = 0; i < v.value_int_n.n; i++) - params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]); - break; - - case TYPE_INT64: - params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]); - break; - - case TYPE_BOOLEAN: - params[0] = ((GLboolean*) p)[0]; - break; - - case TYPE_MATRIX: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_BOOLEAN(m->m[i]); - break; - - case TYPE_MATRIX_T: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]); - break; - - case TYPE_BIT_0: - case TYPE_BIT_1: - case TYPE_BIT_2: - case TYPE_BIT_3: - case TYPE_BIT_4: - case TYPE_BIT_5: - shift = d->type - TYPE_BIT_0; - params[0] = (*(GLbitfield *) p >> shift) & 1; - break; - } -} - -void GLAPIENTRY -_mesa_GetFloatv(GLenum pname, GLfloat *params) -{ - const struct value_desc *d; - union value v; - GLmatrix *m; - int shift, i; - void *p; - - d = find_value("glGetFloatv", pname, &p, &v); - switch (d->type) { - case TYPE_INVALID: - break; - case TYPE_CONST: - params[0] = (GLfloat) d->offset; - break; - - case TYPE_FLOAT_4: - case TYPE_FLOATN_4: - params[3] = ((GLfloat *) p)[3]; - case TYPE_FLOAT_3: - case TYPE_FLOATN_3: - params[2] = ((GLfloat *) p)[2]; - case TYPE_FLOAT_2: - case TYPE_FLOATN_2: - params[1] = ((GLfloat *) p)[1]; - case TYPE_FLOAT: - case TYPE_FLOATN: - params[0] = ((GLfloat *) p)[0]; - break; - - case TYPE_DOUBLEN: - params[0] = ((GLdouble *) p)[0]; - break; - - case TYPE_INT_4: - params[3] = (GLfloat) (((GLint *) p)[3]); - case TYPE_INT_3: - params[2] = (GLfloat) (((GLint *) p)[2]); - case TYPE_INT_2: - case TYPE_ENUM_2: - params[1] = (GLfloat) (((GLint *) p)[1]); - case TYPE_INT: - case TYPE_ENUM: - params[0] = (GLfloat) (((GLint *) p)[0]); - break; - - case TYPE_INT_N: - for (i = 0; i < v.value_int_n.n; i++) - params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]); - break; - - case TYPE_INT64: - params[0] = ((GLint64 *) p)[0]; - break; - - case TYPE_BOOLEAN: - params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p); - break; - - case TYPE_MATRIX: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = m->m[i]; - break; - - case TYPE_MATRIX_T: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = m->m[transpose[i]]; - break; - - case TYPE_BIT_0: - case TYPE_BIT_1: - case TYPE_BIT_2: - case TYPE_BIT_3: - case TYPE_BIT_4: - case TYPE_BIT_5: - shift = d->type - TYPE_BIT_0; - params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1); - break; - } -} - -void GLAPIENTRY -_mesa_GetIntegerv(GLenum pname, GLint *params) -{ - const struct value_desc *d; - union value v; - GLmatrix *m; - int shift, i; - void *p; - - d = find_value("glGetIntegerv", pname, &p, &v); - switch (d->type) { - case TYPE_INVALID: - break; - case TYPE_CONST: - params[0] = d->offset; - break; - - case TYPE_FLOAT_4: - params[3] = IROUND(((GLfloat *) p)[3]); - case TYPE_FLOAT_3: - params[2] = IROUND(((GLfloat *) p)[2]); - case TYPE_FLOAT_2: - params[1] = IROUND(((GLfloat *) p)[1]); - case TYPE_FLOAT: - params[0] = IROUND(((GLfloat *) p)[0]); - break; - - case TYPE_FLOATN_4: - params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]); - case TYPE_FLOATN_3: - params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]); - case TYPE_FLOATN_2: - params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]); - case TYPE_FLOATN: - params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]); - break; - - case TYPE_DOUBLEN: - params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]); - break; - - case TYPE_INT_4: - params[3] = ((GLint *) p)[3]; - case TYPE_INT_3: - params[2] = ((GLint *) p)[2]; - case TYPE_INT_2: - case TYPE_ENUM_2: - params[1] = ((GLint *) p)[1]; - case TYPE_INT: - case TYPE_ENUM: - params[0] = ((GLint *) p)[0]; - break; - - case TYPE_INT_N: - for (i = 0; i < v.value_int_n.n; i++) - params[i] = v.value_int_n.ints[i]; - break; - - case TYPE_INT64: - params[0] = INT64_TO_INT(((GLint64 *) p)[0]); - break; - - case TYPE_BOOLEAN: - params[0] = BOOLEAN_TO_INT(*(GLboolean*) p); - break; - - case TYPE_MATRIX: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_INT(m->m[i]); - break; - - case TYPE_MATRIX_T: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_INT(m->m[transpose[i]]); - break; - - case TYPE_BIT_0: - case TYPE_BIT_1: - case TYPE_BIT_2: - case TYPE_BIT_3: - case TYPE_BIT_4: - case TYPE_BIT_5: - shift = d->type - TYPE_BIT_0; - params[0] = (*(GLbitfield *) p >> shift) & 1; - break; - } -} - -#if FEATURE_ARB_sync -void GLAPIENTRY -_mesa_GetInteger64v(GLenum pname, GLint64 *params) -{ - const struct value_desc *d; - union value v; - GLmatrix *m; - int shift, i; - void *p; - - d = find_value("glGetInteger64v", pname, &p, &v); - switch (d->type) { - case TYPE_INVALID: - break; - case TYPE_CONST: - params[0] = d->offset; - break; - - case TYPE_FLOAT_4: - params[3] = IROUND64(((GLfloat *) p)[3]); - case TYPE_FLOAT_3: - params[2] = IROUND64(((GLfloat *) p)[2]); - case TYPE_FLOAT_2: - params[1] = IROUND64(((GLfloat *) p)[1]); - case TYPE_FLOAT: - params[0] = IROUND64(((GLfloat *) p)[0]); - break; - - case TYPE_FLOATN_4: - params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]); - case TYPE_FLOATN_3: - params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]); - case TYPE_FLOATN_2: - params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]); - case TYPE_FLOATN: - params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]); - break; - - case TYPE_DOUBLEN: - params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]); - break; - - case TYPE_INT_4: - params[3] = ((GLint *) p)[3]; - case TYPE_INT_3: - params[2] = ((GLint *) p)[2]; - case TYPE_INT_2: - case TYPE_ENUM_2: - params[1] = ((GLint *) p)[1]; - case TYPE_INT: - case TYPE_ENUM: - params[0] = ((GLint *) p)[0]; - break; - - case TYPE_INT_N: - for (i = 0; i < v.value_int_n.n; i++) - params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]); - break; - - case TYPE_INT64: - params[0] = ((GLint64 *) p)[0]; - break; - - case TYPE_BOOLEAN: - params[0] = ((GLboolean*) p)[0]; - break; - - case TYPE_MATRIX: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_INT64(m->m[i]); - break; - - case TYPE_MATRIX_T: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_INT64(m->m[transpose[i]]); - break; - - case TYPE_BIT_0: - case TYPE_BIT_1: - case TYPE_BIT_2: - case TYPE_BIT_3: - case TYPE_BIT_4: - case TYPE_BIT_5: - shift = d->type - TYPE_BIT_0; - params[0] = (*(GLbitfield *) p >> shift) & 1; - break; - } -} -#endif /* FEATURE_ARB_sync */ - -void GLAPIENTRY -_mesa_GetDoublev(GLenum pname, GLdouble *params) -{ - const struct value_desc *d; - union value v; - GLmatrix *m; - int shift, i; - void *p; - - d = find_value("glGetDoublev", pname, &p, &v); - switch (d->type) { - case TYPE_INVALID: - break; - case TYPE_CONST: - params[0] = d->offset; - break; - - case TYPE_FLOAT_4: - case TYPE_FLOATN_4: - params[3] = ((GLfloat *) p)[3]; - case TYPE_FLOAT_3: - case TYPE_FLOATN_3: - params[2] = ((GLfloat *) p)[2]; - case TYPE_FLOAT_2: - case TYPE_FLOATN_2: - params[1] = ((GLfloat *) p)[1]; - case TYPE_FLOAT: - case TYPE_FLOATN: - params[0] = ((GLfloat *) p)[0]; - break; - - case TYPE_DOUBLEN: - params[0] = ((GLdouble *) p)[0]; - break; - - case TYPE_INT_4: - params[3] = ((GLint *) p)[3]; - case TYPE_INT_3: - params[2] = ((GLint *) p)[2]; - case TYPE_INT_2: - case TYPE_ENUM_2: - params[1] = ((GLint *) p)[1]; - case TYPE_INT: - case TYPE_ENUM: - params[0] = ((GLint *) p)[0]; - break; - - case TYPE_INT_N: - for (i = 0; i < v.value_int_n.n; i++) - params[i] = v.value_int_n.ints[i]; - break; - - case TYPE_INT64: - params[0] = ((GLint64 *) p)[0]; - break; - - case TYPE_BOOLEAN: - params[0] = *(GLboolean*) p; - break; - - case TYPE_MATRIX: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = m->m[i]; - break; - - case TYPE_MATRIX_T: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = m->m[transpose[i]]; - break; - - case TYPE_BIT_0: - case TYPE_BIT_1: - case TYPE_BIT_2: - case TYPE_BIT_3: - case TYPE_BIT_4: - case TYPE_BIT_5: - shift = d->type - TYPE_BIT_0; - params[0] = (*(GLbitfield *) p >> shift) & 1; - break; - } -} - -static enum value_type -find_value_indexed(const char *func, GLenum pname, int index, union value *v) -{ - GET_CURRENT_CONTEXT(ctx); - - switch (pname) { - - case GL_BLEND: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.EXT_draw_buffers2) - goto invalid_enum; - v->value_int = (ctx->Color.BlendEnabled >> index) & 1; - return TYPE_INT; - - case GL_BLEND_SRC: - /* fall-through */ - case GL_BLEND_SRC_RGB: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.ARB_draw_buffers_blend) - goto invalid_enum; - v->value_int = ctx->Color.Blend[index].SrcRGB; - return TYPE_INT; - case GL_BLEND_SRC_ALPHA: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.ARB_draw_buffers_blend) - goto invalid_enum; - v->value_int = ctx->Color.Blend[index].SrcA; - return TYPE_INT; - case GL_BLEND_DST: - /* fall-through */ - case GL_BLEND_DST_RGB: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.ARB_draw_buffers_blend) - goto invalid_enum; - v->value_int = ctx->Color.Blend[index].DstRGB; - return TYPE_INT; - case GL_BLEND_DST_ALPHA: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.ARB_draw_buffers_blend) - goto invalid_enum; - v->value_int = ctx->Color.Blend[index].DstA; - return TYPE_INT; - case GL_BLEND_EQUATION_RGB: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.ARB_draw_buffers_blend) - goto invalid_enum; - v->value_int = ctx->Color.Blend[index].EquationRGB; - return TYPE_INT; - case GL_BLEND_EQUATION_ALPHA: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.ARB_draw_buffers_blend) - goto invalid_enum; - v->value_int = ctx->Color.Blend[index].EquationA; - return TYPE_INT; - - case GL_COLOR_WRITEMASK: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.EXT_draw_buffers2) - goto invalid_enum; - v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0; - v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0; - v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0; - v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0; - return TYPE_INT_4; - - case GL_TRANSFORM_FEEDBACK_BUFFER_START: - if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs) - goto invalid_value; - if (!ctx->Extensions.EXT_transform_feedback) - goto invalid_enum; - v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index]; - return TYPE_INT64; - - case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE: - if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs) - goto invalid_value; - if (!ctx->Extensions.EXT_transform_feedback) - goto invalid_enum; - v->value_int64 = ctx->TransformFeedback.CurrentObject->Size[index]; - return TYPE_INT64; - - case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING: - if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs) - goto invalid_value; - if (!ctx->Extensions.EXT_transform_feedback) - goto invalid_enum; - v->value_int = ctx->TransformFeedback.CurrentObject->Buffers[index]->Name; - return TYPE_INT; - } - - invalid_enum: - _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func, - _mesa_lookup_enum_by_nr(pname)); - return TYPE_INVALID; - invalid_value: - _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func, - _mesa_lookup_enum_by_nr(pname)); - return TYPE_INVALID; -} - -void GLAPIENTRY -_mesa_GetBooleanIndexedv( GLenum pname, GLuint index, GLboolean *params ) -{ - union value v; - enum value_type type = - find_value_indexed("glGetBooleanIndexedv", pname, index, &v); - - switch (type) { - case TYPE_INT: - params[0] = INT_TO_BOOLEAN(v.value_int); - break; - case TYPE_INT_4: - params[0] = INT_TO_BOOLEAN(v.value_int_4[0]); - params[1] = INT_TO_BOOLEAN(v.value_int_4[1]); - params[2] = INT_TO_BOOLEAN(v.value_int_4[2]); - params[3] = INT_TO_BOOLEAN(v.value_int_4[3]); - break; - case TYPE_INT64: - params[0] = INT64_TO_BOOLEAN(v.value_int); - break; - default: - ; /* nothing - GL error was recorded */ - } -} - -void GLAPIENTRY -_mesa_GetIntegerIndexedv( GLenum pname, GLuint index, GLint *params ) -{ - union value v; - enum value_type type = - find_value_indexed("glGetIntegerIndexedv", pname, index, &v); - - switch (type) { - case TYPE_INT: - params[0] = v.value_int; - break; - case TYPE_INT_4: - params[0] = v.value_int_4[0]; - params[1] = v.value_int_4[1]; - params[2] = v.value_int_4[2]; - params[3] = v.value_int_4[3]; - break; - case TYPE_INT64: - params[0] = INT64_TO_INT(v.value_int); - break; - default: - ; /* nothing - GL error was recorded */ - } -} - -#if FEATURE_ARB_sync -void GLAPIENTRY -_mesa_GetInteger64Indexedv( GLenum pname, GLuint index, GLint64 *params ) -{ - union value v; - enum value_type type = - find_value_indexed("glGetIntegerIndexedv", pname, index, &v); - - switch (type) { - case TYPE_INT: - params[0] = v.value_int; - break; - case TYPE_INT_4: - params[0] = v.value_int_4[0]; - params[1] = v.value_int_4[1]; - params[2] = v.value_int_4[2]; - params[3] = v.value_int_4[3]; - break; - case TYPE_INT64: - params[0] = v.value_int; - break; - default: - ; /* nothing - GL error was recorded */ - } -} -#endif /* FEATURE_ARB_sync */ - -#if FEATURE_ES1 -void GLAPIENTRY -_mesa_GetFixedv(GLenum pname, GLfixed *params) -{ - const struct value_desc *d; - union value v; - GLmatrix *m; - int shift, i; - void *p; - - d = find_value("glGetDoublev", pname, &p, &v); - switch (d->type) { - case TYPE_INVALID: - break; - case TYPE_CONST: - params[0] = INT_TO_FIXED(d->offset); - break; - - case TYPE_FLOAT_4: - case TYPE_FLOATN_4: - params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]); - case TYPE_FLOAT_3: - case TYPE_FLOATN_3: - params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]); - case TYPE_FLOAT_2: - case TYPE_FLOATN_2: - params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]); - case TYPE_FLOAT: - case TYPE_FLOATN: - params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]); - break; - - case TYPE_DOUBLEN: - params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]); - break; - - case TYPE_INT_4: - params[3] = INT_TO_FIXED(((GLint *) p)[3]); - case TYPE_INT_3: - params[2] = INT_TO_FIXED(((GLint *) p)[2]); - case TYPE_INT_2: - case TYPE_ENUM_2: - params[1] = INT_TO_FIXED(((GLint *) p)[1]); - case TYPE_INT: - case TYPE_ENUM: - params[0] = INT_TO_FIXED(((GLint *) p)[0]); - break; - - case TYPE_INT_N: - for (i = 0; i < v.value_int_n.n; i++) - params[i] = INT_TO_FIXED(v.value_int_n.ints[i]); - break; - - case TYPE_INT64: - params[0] = ((GLint64 *) p)[0]; - break; - - case TYPE_BOOLEAN: - params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]); - break; - - case TYPE_MATRIX: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_FIXED(m->m[i]); - break; - - case TYPE_MATRIX_T: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]); - break; - - case TYPE_BIT_0: - case TYPE_BIT_1: - case TYPE_BIT_2: - case TYPE_BIT_3: - case TYPE_BIT_4: - case TYPE_BIT_5: - shift = d->type - TYPE_BIT_0; - params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1); - break; - } -} -#endif +/* + * Copyright (C) 2010 Brian Paul All Rights Reserved. + * Copyright (C) 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Author: Kristian Høgsberg + */ + +#include "glheader.h" +#include "context.h" +#include "enable.h" +#include "enums.h" +#include "extensions.h" +#include "get.h" +#include "macros.h" +#include "mfeatures.h" +#include "mtypes.h" +#include "state.h" +#include "texcompress.h" +#include "framebuffer.h" + +/* This is a table driven implemetation of the glGet*v() functions. + * The basic idea is that most getters just look up an int somewhere + * in struct gl_context and then convert it to a bool or float according to + * which of glGetIntegerv() glGetBooleanv() etc is being called. + * Instead of generating code to do this, we can just record the enum + * value and the offset into struct gl_context in an array of structs. Then + * in glGet*(), we lookup the struct for the enum in question, and use + * the offset to get the int we need. + * + * Sometimes we need to look up a float, a boolean, a bit in a + * bitfield, a matrix or other types instead, so we need to track the + * type of the value in struct gl_context. And sometimes the value isn't in + * struct gl_context but in the drawbuffer, the array object, current texture + * unit, or maybe it's a computed value. So we need to also track + * where or how to find the value. Finally, we sometimes need to + * check that one of a number of extensions are enabled, the GL + * version or flush or call _mesa_update_state(). This is done by + * attaching optional extra information to the value description + * struct, it's sort of like an array of opcodes that describe extra + * checks or actions. + * + * Putting all this together we end up with struct value_desc below, + * and with a couple of macros to help, the table of struct value_desc + * is about as concise as the specification in the old python script. + */ + +#undef CONST + +#define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE ) +#define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \ + ((F) * 65536.0f < INT_MIN) ? INT_MIN : \ + (GLint) ((F) * 65536.0f) ) + +#define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE ) +#define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \ + ((I) < SHRT_MIN) ? INT_MIN : \ + (GLint) ((I) * 65536) ) + +#define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE ) +#define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) ) + +#define BOOLEAN_TO_INT(B) ( (GLint) (B) ) +#define BOOLEAN_TO_INT64(B) ( (GLint64) (B) ) +#define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F ) +#define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 ) + +#define ENUM_TO_INT64(E) ( (GLint64) (E) ) +#define ENUM_TO_FIXED(E) (E) + +enum value_type { + TYPE_INVALID, + TYPE_API_MASK, + TYPE_INT, + TYPE_INT_2, + TYPE_INT_3, + TYPE_INT_4, + TYPE_INT_N, + TYPE_INT64, + TYPE_ENUM, + TYPE_ENUM_2, + TYPE_BOOLEAN, + TYPE_BIT_0, + TYPE_BIT_1, + TYPE_BIT_2, + TYPE_BIT_3, + TYPE_BIT_4, + TYPE_BIT_5, + TYPE_FLOAT, + TYPE_FLOAT_2, + TYPE_FLOAT_3, + TYPE_FLOAT_4, + TYPE_FLOATN, + TYPE_FLOATN_2, + TYPE_FLOATN_3, + TYPE_FLOATN_4, + TYPE_DOUBLEN, + TYPE_MATRIX, + TYPE_MATRIX_T, + TYPE_CONST +}; + +enum value_location { + LOC_BUFFER, + LOC_CONTEXT, + LOC_ARRAY, + LOC_TEXUNIT, + LOC_CUSTOM +}; + +enum value_extra { + EXTRA_END = 0x8000, + EXTRA_VERSION_30, + EXTRA_VERSION_31, + EXTRA_VERSION_32, + EXTRA_VERSION_ES2, + EXTRA_NEW_BUFFERS, + EXTRA_VALID_DRAW_BUFFER, + EXTRA_VALID_TEXTURE_UNIT, + EXTRA_FLUSH_CURRENT, +}; + +#define NO_EXTRA NULL +#define NO_OFFSET 0 + +struct value_desc { + GLenum pname; + GLubyte location; /**< enum value_location */ + GLubyte type; /**< enum value_type */ + int offset; + const int *extra; +}; + +union value { + GLfloat value_float; + GLfloat value_float_4[4]; + GLmatrix *value_matrix; + GLint value_int; + GLint value_int_4[4]; + GLint64 value_int64; + GLenum value_enum; + + /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */ + struct { + GLint n, ints[100]; + } value_int_n; + GLboolean value_bool; +}; + +#define BUFFER_FIELD(field, type) \ + LOC_BUFFER, type, offsetof(struct gl_framebuffer, field) +#define CONTEXT_FIELD(field, type) \ + LOC_CONTEXT, type, offsetof(struct gl_context, field) +#define ARRAY_FIELD(field, type) \ + LOC_ARRAY, type, offsetof(struct gl_array_object, field) +#define CONST(value) \ + LOC_CONTEXT, TYPE_CONST, value + +#define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT) +#define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM) +#define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN) + +#define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT) +#define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2) +#define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64) +#define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM) +#define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2) +#define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN) +#define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0) +#define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1) +#define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2) +#define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3) +#define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4) +#define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5) +#define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT) +#define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2) +#define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3) +#define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4) +#define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX) +#define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T) + +#define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT) +#define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM) +#define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN) + +#define EXT(f) \ + offsetof(struct gl_extensions, f) + +#define EXTRA_EXT(e) \ + static const int extra_##e[] = { \ + EXT(e), EXTRA_END \ + } + +#define EXTRA_EXT2(e1, e2) \ + static const int extra_##e1##_##e2[] = { \ + EXT(e1), EXT(e2), EXTRA_END \ + } + +/* The 'extra' mechanism is a way to specify extra checks (such as + * extensions or specific gl versions) or actions (flush current, new + * buffers) that we need to do before looking up an enum. We need to + * declare them all up front so we can refer to them in the value_desc + * structs below. */ + +static const int extra_new_buffers[] = { + EXTRA_NEW_BUFFERS, + EXTRA_END +}; + +static const int extra_valid_draw_buffer[] = { + EXTRA_VALID_DRAW_BUFFER, + EXTRA_END +}; + +static const int extra_valid_texture_unit[] = { + EXTRA_VALID_TEXTURE_UNIT, + EXTRA_END +}; + +static const int extra_flush_current_valid_texture_unit[] = { + EXTRA_FLUSH_CURRENT, + EXTRA_VALID_TEXTURE_UNIT, + EXTRA_END +}; + +static const int extra_flush_current[] = { + EXTRA_FLUSH_CURRENT, + EXTRA_END +}; + +static const int extra_new_buffers_OES_read_format[] = { + EXTRA_NEW_BUFFERS, + EXT(OES_read_format), + EXTRA_END +}; + +static const int extra_EXT_secondary_color_flush_current[] = { + EXT(EXT_secondary_color), + EXTRA_FLUSH_CURRENT, + EXTRA_END +}; + +static const int extra_EXT_fog_coord_flush_current[] = { + EXT(EXT_fog_coord), + EXTRA_FLUSH_CURRENT, + EXTRA_END +}; + +static const int extra_EXT_texture_integer[] = { + EXT(EXT_texture_integer), + EXTRA_END +}; + +static const int extra_EXT_gpu_shader4[] = { + EXT(EXT_gpu_shader4), + EXTRA_END +}; + + +EXTRA_EXT(ARB_ES2_compatibility); +EXTRA_EXT(ARB_multitexture); +EXTRA_EXT(ARB_texture_cube_map); +EXTRA_EXT(MESA_texture_array); +EXTRA_EXT2(EXT_secondary_color, ARB_vertex_program); +EXTRA_EXT(EXT_secondary_color); +EXTRA_EXT(EXT_fog_coord); +EXTRA_EXT(EXT_texture_lod_bias); +EXTRA_EXT(EXT_texture_filter_anisotropic); +EXTRA_EXT(IBM_rasterpos_clip); +EXTRA_EXT(NV_point_sprite); +EXTRA_EXT(SGIS_generate_mipmap); +EXTRA_EXT(NV_vertex_program); +EXTRA_EXT(NV_fragment_program); +EXTRA_EXT(NV_texture_rectangle); +EXTRA_EXT(EXT_stencil_two_side); +EXTRA_EXT(NV_light_max_exponent); +EXTRA_EXT(EXT_depth_bounds_test); +EXTRA_EXT(ARB_depth_clamp); +EXTRA_EXT(ATI_fragment_shader); +EXTRA_EXT(EXT_framebuffer_blit); +EXTRA_EXT(ARB_shader_objects); +EXTRA_EXT(EXT_provoking_vertex); +EXTRA_EXT(ARB_fragment_shader); +EXTRA_EXT(ARB_fragment_program); +EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample); +EXTRA_EXT(EXT_framebuffer_object); +EXTRA_EXT(APPLE_vertex_array_object); +EXTRA_EXT(ARB_seamless_cube_map); +EXTRA_EXT(EXT_compiled_vertex_array); +EXTRA_EXT(ARB_sync); +EXTRA_EXT(ARB_vertex_shader); +EXTRA_EXT(EXT_transform_feedback); +EXTRA_EXT(ARB_transform_feedback2); +EXTRA_EXT(EXT_pixel_buffer_object); +EXTRA_EXT(ARB_vertex_program); +EXTRA_EXT2(NV_point_sprite, ARB_point_sprite); +EXTRA_EXT2(ARB_fragment_program, NV_fragment_program); +EXTRA_EXT2(ARB_vertex_program, NV_vertex_program); +EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program); +EXTRA_EXT(ARB_vertex_buffer_object); +EXTRA_EXT(ARB_geometry_shader4); +EXTRA_EXT(ARB_copy_buffer); +EXTRA_EXT(EXT_framebuffer_sRGB); + +static const int +extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = { + EXT(ARB_vertex_program), + EXT(ARB_fragment_program), + EXT(NV_vertex_program), + EXTRA_END +}; + +static const int +extra_NV_vertex_program_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = { + EXT(NV_vertex_program), + EXT(ARB_vertex_program), + EXT(ARB_fragment_program), + EXT(NV_vertex_program), + EXTRA_END +}; + +static const int +extra_NV_primitive_restart[] = { + EXT(NV_primitive_restart), + EXTRA_END +}; + +static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END }; +static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END }; +static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END }; + +static const int +extra_ARB_vertex_program_version_es2[] = { + EXT(ARB_vertex_program), + EXTRA_VERSION_ES2, + EXTRA_END +}; + +#define API_OPENGL_BIT (1 << API_OPENGL) +#define API_OPENGLES_BIT (1 << API_OPENGLES) +#define API_OPENGLES2_BIT (1 << API_OPENGLES2) + +/* This is the big table describing all the enums we accept in + * glGet*v(). The table is partitioned into six parts: enums + * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared + * between OpenGL and GLES, enums exclusive to GLES, etc for the + * remaining combinations. When we add the enums to the hash table in + * _mesa_init_get_hash(), we only add the enums for the API we're + * instantiating and the different sections are guarded by #if + * FEATURE_GL etc to make sure we only compile in the enums we may + * need. */ + +static const struct value_desc values[] = { + /* Enums shared between OpenGL, GLES1 and GLES2 */ + { 0, 0, TYPE_API_MASK, + API_OPENGL_BIT | API_OPENGLES_BIT | API_OPENGLES2_BIT, NO_EXTRA}, + { GL_ALPHA_BITS, BUFFER_INT(Visual.alphaBits), extra_new_buffers }, + { GL_BLEND, CONTEXT_BIT0(Color.BlendEnabled), NO_EXTRA }, + { GL_BLEND_SRC, CONTEXT_ENUM(Color.Blend[0].SrcRGB), NO_EXTRA }, + { GL_BLUE_BITS, BUFFER_INT(Visual.blueBits), extra_new_buffers }, + { GL_COLOR_CLEAR_VALUE, CONTEXT_FIELD(Color.ClearColor[0], TYPE_FLOATN_4), NO_EXTRA }, + { GL_COLOR_WRITEMASK, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA }, + { GL_CULL_FACE, CONTEXT_BOOL(Polygon.CullFlag), NO_EXTRA }, + { GL_CULL_FACE_MODE, CONTEXT_ENUM(Polygon.CullFaceMode), NO_EXTRA }, + { GL_DEPTH_BITS, BUFFER_INT(Visual.depthBits), NO_EXTRA }, + { GL_DEPTH_CLEAR_VALUE, CONTEXT_FIELD(Depth.Clear, TYPE_DOUBLEN), NO_EXTRA }, + { GL_DEPTH_FUNC, CONTEXT_ENUM(Depth.Func), NO_EXTRA }, + { GL_DEPTH_RANGE, CONTEXT_FIELD(Viewport.Near, TYPE_FLOATN_2), NO_EXTRA }, + { GL_DEPTH_TEST, CONTEXT_BOOL(Depth.Test), NO_EXTRA }, + { GL_DEPTH_WRITEMASK, CONTEXT_BOOL(Depth.Mask), NO_EXTRA }, + { GL_DITHER, CONTEXT_BOOL(Color.DitherFlag), NO_EXTRA }, + { GL_FRONT_FACE, CONTEXT_ENUM(Polygon.FrontFace), NO_EXTRA }, + { GL_GREEN_BITS, BUFFER_INT(Visual.greenBits), extra_new_buffers }, + { GL_LINE_WIDTH, CONTEXT_FLOAT(Line.Width), NO_EXTRA }, + { GL_ALIASED_LINE_WIDTH_RANGE, CONTEXT_FLOAT2(Const.MinLineWidth), NO_EXTRA }, + { GL_MAX_ELEMENTS_VERTICES, CONTEXT_INT(Const.MaxArrayLockSize), NO_EXTRA }, + { GL_MAX_ELEMENTS_INDICES, CONTEXT_INT(Const.MaxArrayLockSize), NO_EXTRA }, + { GL_MAX_TEXTURE_SIZE, LOC_CUSTOM, TYPE_INT, + offsetof(struct gl_context, Const.MaxTextureLevels), NO_EXTRA }, + { GL_MAX_VIEWPORT_DIMS, CONTEXT_INT2(Const.MaxViewportWidth), NO_EXTRA }, + { GL_PACK_ALIGNMENT, CONTEXT_INT(Pack.Alignment), NO_EXTRA }, + { GL_ALIASED_POINT_SIZE_RANGE, CONTEXT_FLOAT2(Const.MinPointSize), NO_EXTRA }, + { GL_POLYGON_OFFSET_FACTOR, CONTEXT_FLOAT(Polygon.OffsetFactor ), NO_EXTRA }, + { GL_POLYGON_OFFSET_UNITS, CONTEXT_FLOAT(Polygon.OffsetUnits ), NO_EXTRA }, + { GL_POLYGON_OFFSET_FILL, CONTEXT_BOOL(Polygon.OffsetFill), NO_EXTRA }, + { GL_RED_BITS, BUFFER_INT(Visual.redBits), extra_new_buffers }, + { GL_SCISSOR_BOX, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA }, + { GL_SCISSOR_TEST, CONTEXT_BOOL(Scissor.Enabled), NO_EXTRA }, + { GL_STENCIL_BITS, BUFFER_INT(Visual.stencilBits), NO_EXTRA }, + { GL_STENCIL_CLEAR_VALUE, CONTEXT_INT(Stencil.Clear), NO_EXTRA }, + { GL_STENCIL_FAIL, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, + { GL_STENCIL_FUNC, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, + { GL_STENCIL_PASS_DEPTH_FAIL, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, + { GL_STENCIL_PASS_DEPTH_PASS, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, + { GL_STENCIL_REF, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA }, + { GL_STENCIL_TEST, CONTEXT_BOOL(Stencil.Enabled), NO_EXTRA }, + { GL_STENCIL_VALUE_MASK, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA }, + { GL_STENCIL_WRITEMASK, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA }, + { GL_SUBPIXEL_BITS, CONTEXT_INT(Const.SubPixelBits), NO_EXTRA }, + { GL_TEXTURE_BINDING_2D, LOC_CUSTOM, TYPE_INT, TEXTURE_2D_INDEX, NO_EXTRA }, + { GL_UNPACK_ALIGNMENT, CONTEXT_INT(Unpack.Alignment), NO_EXTRA }, + { GL_VIEWPORT, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA }, + + /* GL_ARB_multitexture */ + { GL_ACTIVE_TEXTURE_ARB, + LOC_CUSTOM, TYPE_INT, 0, extra_ARB_multitexture }, + + /* Note that all the OES_* extensions require that the Mesa "struct + * gl_extensions" include a member with the name of the extension. + * That structure does not yet include OES extensions (and we're + * not sure whether it will). If it does, all the OES_* + * extensions below should mark the dependency. */ + + /* GL_ARB_texture_cube_map */ + { GL_TEXTURE_BINDING_CUBE_MAP_ARB, LOC_CUSTOM, TYPE_INT, + TEXTURE_CUBE_INDEX, extra_ARB_texture_cube_map }, + { GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, LOC_CUSTOM, TYPE_INT, + offsetof(struct gl_context, Const.MaxCubeTextureLevels), + extra_ARB_texture_cube_map }, /* XXX: OES_texture_cube_map */ + + /* XXX: OES_blend_subtract */ + { GL_BLEND_SRC_RGB_EXT, CONTEXT_ENUM(Color.Blend[0].SrcRGB), NO_EXTRA }, + { GL_BLEND_DST_RGB_EXT, CONTEXT_ENUM(Color.Blend[0].DstRGB), NO_EXTRA }, + { GL_BLEND_SRC_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].SrcA), NO_EXTRA }, + { GL_BLEND_DST_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].DstA), NO_EXTRA }, + + /* GL_BLEND_EQUATION_RGB, which is what we're really after, is + * defined identically to GL_BLEND_EQUATION. */ + { GL_BLEND_EQUATION, CONTEXT_ENUM(Color.Blend[0].EquationRGB), NO_EXTRA }, + { GL_BLEND_EQUATION_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].EquationA), NO_EXTRA }, + + /* GL_ARB_texture_compression */ + { GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, + { GL_COMPRESSED_TEXTURE_FORMATS_ARB, LOC_CUSTOM, TYPE_INT_N, 0, NO_EXTRA }, + + /* GL_ARB_multisample */ + { GL_SAMPLE_ALPHA_TO_COVERAGE_ARB, + CONTEXT_BOOL(Multisample.SampleAlphaToCoverage), NO_EXTRA }, + { GL_SAMPLE_COVERAGE_ARB, CONTEXT_BOOL(Multisample.SampleCoverage), NO_EXTRA }, + { GL_SAMPLE_COVERAGE_VALUE_ARB, + CONTEXT_FLOAT(Multisample.SampleCoverageValue), NO_EXTRA }, + { GL_SAMPLE_COVERAGE_INVERT_ARB, + CONTEXT_BOOL(Multisample.SampleCoverageInvert), NO_EXTRA }, + { GL_SAMPLE_BUFFERS_ARB, BUFFER_INT(Visual.sampleBuffers), NO_EXTRA }, + { GL_SAMPLES_ARB, BUFFER_INT(Visual.samples), NO_EXTRA }, + + /* GL_SGIS_generate_mipmap */ + { GL_GENERATE_MIPMAP_HINT_SGIS, CONTEXT_ENUM(Hint.GenerateMipmap), + extra_SGIS_generate_mipmap }, + + /* GL_ARB_vertex_buffer_object */ + { GL_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, + + /* GL_ARB_vertex_buffer_object */ + /* GL_WEIGHT_ARRAY_BUFFER_BINDING_ARB - not supported */ + { GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0, + extra_ARB_vertex_buffer_object }, + + /* GL_ARB_copy_buffer */ + { GL_COPY_READ_BUFFER, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_copy_buffer }, + { GL_COPY_WRITE_BUFFER, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_copy_buffer }, + + /* GL_OES_read_format */ + { GL_IMPLEMENTATION_COLOR_READ_TYPE_OES, LOC_CUSTOM, TYPE_INT, 0, + extra_new_buffers_OES_read_format }, + { GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES, LOC_CUSTOM, TYPE_INT, 0, + extra_new_buffers_OES_read_format }, + + /* GL_EXT_framebuffer_object */ + { GL_FRAMEBUFFER_BINDING_EXT, BUFFER_INT(Name), + extra_EXT_framebuffer_object }, + { GL_RENDERBUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0, + extra_EXT_framebuffer_object }, + { GL_MAX_RENDERBUFFER_SIZE_EXT, CONTEXT_INT(Const.MaxRenderbufferSize), + extra_EXT_framebuffer_object }, + + /* This entry isn't spec'ed for GLES 2, but is needed for Mesa's + * GLSL: */ + { GL_MAX_CLIP_PLANES, CONTEXT_INT(Const.MaxClipPlanes), NO_EXTRA }, + +#if FEATURE_GL || FEATURE_ES1 + /* Enums in OpenGL and GLES1 */ + { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGLES_BIT, NO_EXTRA }, + { GL_LIGHT0, CONTEXT_BOOL(Light.Light[0].Enabled), NO_EXTRA }, + { GL_LIGHT1, CONTEXT_BOOL(Light.Light[1].Enabled), NO_EXTRA }, + { GL_LIGHT2, CONTEXT_BOOL(Light.Light[2].Enabled), NO_EXTRA }, + { GL_LIGHT3, CONTEXT_BOOL(Light.Light[3].Enabled), NO_EXTRA }, + { GL_LIGHT4, CONTEXT_BOOL(Light.Light[4].Enabled), NO_EXTRA }, + { GL_LIGHT5, CONTEXT_BOOL(Light.Light[5].Enabled), NO_EXTRA }, + { GL_LIGHT6, CONTEXT_BOOL(Light.Light[6].Enabled), NO_EXTRA }, + { GL_LIGHT7, CONTEXT_BOOL(Light.Light[7].Enabled), NO_EXTRA }, + { GL_LIGHTING, CONTEXT_BOOL(Light.Enabled), NO_EXTRA }, + { GL_LIGHT_MODEL_AMBIENT, + CONTEXT_FIELD(Light.Model.Ambient[0], TYPE_FLOATN_4), NO_EXTRA }, + { GL_LIGHT_MODEL_TWO_SIDE, CONTEXT_BOOL(Light.Model.TwoSide), NO_EXTRA }, + { GL_ALPHA_TEST, CONTEXT_BOOL(Color.AlphaEnabled), NO_EXTRA }, + { GL_ALPHA_TEST_FUNC, CONTEXT_ENUM(Color.AlphaFunc), NO_EXTRA }, + { GL_ALPHA_TEST_REF, CONTEXT_FIELD(Color.AlphaRef, TYPE_FLOATN), NO_EXTRA }, + { GL_BLEND_DST, CONTEXT_ENUM(Color.Blend[0].DstRGB), NO_EXTRA }, + { GL_CLIP_PLANE0, CONTEXT_BIT0(Transform.ClipPlanesEnabled), NO_EXTRA }, + { GL_CLIP_PLANE1, CONTEXT_BIT1(Transform.ClipPlanesEnabled), NO_EXTRA }, + { GL_CLIP_PLANE2, CONTEXT_BIT2(Transform.ClipPlanesEnabled), NO_EXTRA }, + { GL_CLIP_PLANE3, CONTEXT_BIT3(Transform.ClipPlanesEnabled), NO_EXTRA }, + { GL_CLIP_PLANE4, CONTEXT_BIT4(Transform.ClipPlanesEnabled), NO_EXTRA }, + { GL_CLIP_PLANE5, CONTEXT_BIT5(Transform.ClipPlanesEnabled), NO_EXTRA }, + { GL_COLOR_MATERIAL, CONTEXT_BOOL(Light.ColorMaterialEnabled), NO_EXTRA }, + { GL_CURRENT_COLOR, + CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR0][0], TYPE_FLOATN_4), + extra_flush_current }, + { GL_CURRENT_NORMAL, + CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_NORMAL][0], TYPE_FLOATN_3), + extra_flush_current }, + { GL_CURRENT_TEXTURE_COORDS, LOC_CUSTOM, TYPE_FLOAT_4, 0, + extra_flush_current_valid_texture_unit }, + { GL_DISTANCE_ATTENUATION_EXT, CONTEXT_FLOAT3(Point.Params[0]), NO_EXTRA }, + { GL_FOG, CONTEXT_BOOL(Fog.Enabled), NO_EXTRA }, + { GL_FOG_COLOR, CONTEXT_FIELD(Fog.Color[0], TYPE_FLOATN_4), NO_EXTRA }, + { GL_FOG_DENSITY, CONTEXT_FLOAT(Fog.Density), NO_EXTRA }, + { GL_FOG_END, CONTEXT_FLOAT(Fog.End), NO_EXTRA }, + { GL_FOG_HINT, CONTEXT_ENUM(Hint.Fog), NO_EXTRA }, + { GL_FOG_MODE, CONTEXT_ENUM(Fog.Mode), NO_EXTRA }, + { GL_FOG_START, CONTEXT_FLOAT(Fog.Start), NO_EXTRA }, + { GL_LINE_SMOOTH, CONTEXT_BOOL(Line.SmoothFlag), NO_EXTRA }, + { GL_LINE_SMOOTH_HINT, CONTEXT_ENUM(Hint.LineSmooth), NO_EXTRA }, + { GL_LINE_WIDTH_RANGE, CONTEXT_FLOAT2(Const.MinLineWidthAA), NO_EXTRA }, + { GL_COLOR_LOGIC_OP, CONTEXT_BOOL(Color.ColorLogicOpEnabled), NO_EXTRA }, + { GL_LOGIC_OP_MODE, CONTEXT_ENUM(Color.LogicOp), NO_EXTRA }, + { GL_MATRIX_MODE, CONTEXT_ENUM(Transform.MatrixMode), NO_EXTRA }, + { GL_MAX_MODELVIEW_STACK_DEPTH, CONST(MAX_MODELVIEW_STACK_DEPTH), NO_EXTRA }, + { GL_MAX_PROJECTION_STACK_DEPTH, CONST(MAX_PROJECTION_STACK_DEPTH), NO_EXTRA }, + { GL_MAX_TEXTURE_STACK_DEPTH, CONST(MAX_TEXTURE_STACK_DEPTH), NO_EXTRA }, + { GL_MODELVIEW_MATRIX, CONTEXT_MATRIX(ModelviewMatrixStack.Top), NO_EXTRA }, + { GL_MODELVIEW_STACK_DEPTH, LOC_CUSTOM, TYPE_INT, + offsetof(struct gl_context, ModelviewMatrixStack.Depth), NO_EXTRA }, + { GL_NORMALIZE, CONTEXT_BOOL(Transform.Normalize), NO_EXTRA }, + { GL_PACK_SKIP_IMAGES_EXT, CONTEXT_INT(Pack.SkipImages), NO_EXTRA }, + { GL_PERSPECTIVE_CORRECTION_HINT, CONTEXT_ENUM(Hint.PerspectiveCorrection), NO_EXTRA }, + { GL_POINT_SIZE, CONTEXT_FLOAT(Point.Size), NO_EXTRA }, + { GL_POINT_SIZE_RANGE, CONTEXT_FLOAT2(Const.MinPointSizeAA), NO_EXTRA }, + { GL_POINT_SMOOTH, CONTEXT_BOOL(Point.SmoothFlag), NO_EXTRA }, + { GL_POINT_SMOOTH_HINT, CONTEXT_ENUM(Hint.PointSmooth), NO_EXTRA }, + { GL_POINT_SIZE_MIN_EXT, CONTEXT_FLOAT(Point.MinSize), NO_EXTRA }, + { GL_POINT_SIZE_MAX_EXT, CONTEXT_FLOAT(Point.MaxSize), NO_EXTRA }, + { GL_POINT_FADE_THRESHOLD_SIZE_EXT, CONTEXT_FLOAT(Point.Threshold), NO_EXTRA }, + { GL_PROJECTION_MATRIX, CONTEXT_MATRIX(ProjectionMatrixStack.Top), NO_EXTRA }, + { GL_PROJECTION_STACK_DEPTH, LOC_CUSTOM, TYPE_INT, + offsetof(struct gl_context, ProjectionMatrixStack.Depth), NO_EXTRA }, + { GL_RESCALE_NORMAL, CONTEXT_BOOL(Transform.RescaleNormals), NO_EXTRA }, + { GL_SHADE_MODEL, CONTEXT_ENUM(Light.ShadeModel), NO_EXTRA }, + { GL_TEXTURE_2D, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA }, + { GL_TEXTURE_MATRIX, LOC_CUSTOM, TYPE_MATRIX, 0, extra_valid_texture_unit }, + { GL_TEXTURE_STACK_DEPTH, LOC_CUSTOM, TYPE_INT, 0, + extra_valid_texture_unit }, + + { GL_VERTEX_ARRAY, ARRAY_BOOL(Vertex.Enabled), NO_EXTRA }, + { GL_VERTEX_ARRAY_SIZE, ARRAY_INT(Vertex.Size), NO_EXTRA }, + { GL_VERTEX_ARRAY_TYPE, ARRAY_ENUM(Vertex.Type), NO_EXTRA }, + { GL_VERTEX_ARRAY_STRIDE, ARRAY_INT(Vertex.Stride), NO_EXTRA }, + { GL_NORMAL_ARRAY, ARRAY_ENUM(Normal.Enabled), NO_EXTRA }, + { GL_NORMAL_ARRAY_TYPE, ARRAY_ENUM(Normal.Type), NO_EXTRA }, + { GL_NORMAL_ARRAY_STRIDE, ARRAY_INT(Normal.Stride), NO_EXTRA }, + { GL_COLOR_ARRAY, ARRAY_BOOL(Color.Enabled), NO_EXTRA }, + { GL_COLOR_ARRAY_SIZE, ARRAY_INT(Color.Size), NO_EXTRA }, + { GL_COLOR_ARRAY_TYPE, ARRAY_ENUM(Color.Type), NO_EXTRA }, + { GL_COLOR_ARRAY_STRIDE, ARRAY_INT(Color.Stride), NO_EXTRA }, + { GL_TEXTURE_COORD_ARRAY, + LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Enabled), NO_EXTRA }, + { GL_TEXTURE_COORD_ARRAY_SIZE, + LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Size), NO_EXTRA }, + { GL_TEXTURE_COORD_ARRAY_TYPE, + LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Type), NO_EXTRA }, + { GL_TEXTURE_COORD_ARRAY_STRIDE, + LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Stride), NO_EXTRA }, + + /* GL_ARB_ES2_compatibility */ + { GL_SHADER_COMPILER, CONST(1), extra_ARB_ES2_compatibility }, + { GL_MAX_VARYING_VECTORS, CONTEXT_INT(Const.MaxVarying), + extra_ARB_ES2_compatibility }, + { GL_MAX_VERTEX_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, + extra_ARB_ES2_compatibility }, + { GL_MAX_FRAGMENT_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, + extra_ARB_ES2_compatibility }, + + /* GL_ARB_multitexture */ + { GL_MAX_TEXTURE_UNITS_ARB, + CONTEXT_INT(Const.MaxTextureUnits), extra_ARB_multitexture }, + { GL_CLIENT_ACTIVE_TEXTURE_ARB, + LOC_CUSTOM, TYPE_INT, 0, extra_ARB_multitexture }, + + /* GL_ARB_texture_cube_map */ + { GL_TEXTURE_CUBE_MAP_ARB, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA }, + /* S, T, and R are always set at the same time */ + { GL_TEXTURE_GEN_STR_OES, LOC_TEXUNIT, TYPE_BIT_0, + offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA }, + + /* GL_ARB_multisample */ + { GL_MULTISAMPLE_ARB, CONTEXT_BOOL(Multisample.Enabled), NO_EXTRA }, + { GL_SAMPLE_ALPHA_TO_ONE_ARB, CONTEXT_BOOL(Multisample.SampleAlphaToOne), NO_EXTRA }, + + /* GL_ARB_vertex_buffer_object */ + { GL_VERTEX_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, + offsetof(struct gl_array_object, Vertex.BufferObj), NO_EXTRA }, + { GL_NORMAL_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, + offsetof(struct gl_array_object, Normal.BufferObj), NO_EXTRA }, + { GL_COLOR_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, + offsetof(struct gl_array_object, Color.BufferObj), NO_EXTRA }, + { GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA }, + + /* GL_OES_point_sprite */ + { GL_POINT_SPRITE_NV, + CONTEXT_BOOL(Point.PointSprite), + extra_NV_point_sprite_ARB_point_sprite }, + + /* GL_ARB_fragment_shader */ + { GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB, + CONTEXT_INT(Const.FragmentProgram.MaxUniformComponents), + extra_ARB_fragment_shader }, + + /* GL_ARB_vertex_shader */ + { GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB, + CONTEXT_INT(Const.VertexProgram.MaxUniformComponents), + extra_ARB_vertex_shader }, + { GL_MAX_VARYING_FLOATS_ARB, LOC_CUSTOM, TYPE_INT, 0, + extra_ARB_vertex_shader }, + + /* GL_EXT_texture_lod_bias */ + { GL_MAX_TEXTURE_LOD_BIAS_EXT, CONTEXT_FLOAT(Const.MaxTextureLodBias), + extra_EXT_texture_lod_bias }, + + /* GL_EXT_texture_filter_anisotropic */ + { GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, + CONTEXT_FLOAT(Const.MaxTextureMaxAnisotropy), + extra_EXT_texture_filter_anisotropic }, +#endif /* FEATURE_GL || FEATURE_ES1 */ + +#if FEATURE_ES1 + { 0, 0, TYPE_API_MASK, API_OPENGLES_BIT }, + /* XXX: OES_matrix_get */ + { GL_MODELVIEW_MATRIX_FLOAT_AS_INT_BITS_OES }, + { GL_PROJECTION_MATRIX_FLOAT_AS_INT_BITS_OES }, + { GL_TEXTURE_MATRIX_FLOAT_AS_INT_BITS_OES }, + + /* OES_point_size_array */ + { GL_POINT_SIZE_ARRAY_OES, ARRAY_FIELD(PointSize.Enabled, TYPE_BOOLEAN) }, + { GL_POINT_SIZE_ARRAY_TYPE_OES, ARRAY_FIELD(PointSize.Type, TYPE_ENUM) }, + { GL_POINT_SIZE_ARRAY_STRIDE_OES, ARRAY_FIELD(PointSize.Stride, TYPE_INT) }, + { GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES, LOC_CUSTOM, TYPE_INT, 0 }, +#endif /* FEATURE_ES1 */ + +#if FEATURE_GL || FEATURE_ES2 + { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGLES2_BIT, NO_EXTRA }, + /* This entry isn't spec'ed for GLES 2, but is needed for Mesa's GLSL: */ + { GL_MAX_LIGHTS, CONTEXT_INT(Const.MaxLights), NO_EXTRA }, + { GL_MAX_TEXTURE_COORDS_ARB, /* == GL_MAX_TEXTURE_COORDS_NV */ + CONTEXT_INT(Const.MaxTextureCoordUnits), + extra_ARB_fragment_program_NV_fragment_program }, + + /* GL_ARB_draw_buffers */ + { GL_MAX_DRAW_BUFFERS_ARB, CONTEXT_INT(Const.MaxDrawBuffers), NO_EXTRA }, + + { GL_BLEND_COLOR_EXT, CONTEXT_FIELD(Color.BlendColor[0], TYPE_FLOATN_4), NO_EXTRA }, + /* GL_ARB_fragment_program */ + { GL_MAX_TEXTURE_IMAGE_UNITS_ARB, /* == GL_MAX_TEXTURE_IMAGE_UNITS_NV */ + CONTEXT_INT(Const.MaxTextureImageUnits), + extra_ARB_fragment_program_NV_fragment_program }, + { GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, + CONTEXT_INT(Const.MaxVertexTextureImageUnits), extra_ARB_vertex_shader }, + { GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB, + CONTEXT_INT(Const.MaxCombinedTextureImageUnits), + extra_ARB_vertex_shader }, + + /* GL_ARB_shader_objects + * Actually, this token isn't part of GL_ARB_shader_objects, but is + * close enough for now. */ + { GL_CURRENT_PROGRAM, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_shader_objects }, + + /* OpenGL 2.0 */ + { GL_STENCIL_BACK_FUNC, CONTEXT_ENUM(Stencil.Function[1]), NO_EXTRA }, + { GL_STENCIL_BACK_VALUE_MASK, CONTEXT_INT(Stencil.ValueMask[1]), NO_EXTRA }, + { GL_STENCIL_BACK_WRITEMASK, CONTEXT_INT(Stencil.WriteMask[1]), NO_EXTRA }, + { GL_STENCIL_BACK_REF, CONTEXT_INT(Stencil.Ref[1]), NO_EXTRA }, + { GL_STENCIL_BACK_FAIL, CONTEXT_ENUM(Stencil.FailFunc[1]), NO_EXTRA }, + { GL_STENCIL_BACK_PASS_DEPTH_FAIL, CONTEXT_ENUM(Stencil.ZFailFunc[1]), NO_EXTRA }, + { GL_STENCIL_BACK_PASS_DEPTH_PASS, CONTEXT_ENUM(Stencil.ZPassFunc[1]), NO_EXTRA }, + + { GL_MAX_VERTEX_ATTRIBS_ARB, + CONTEXT_INT(Const.VertexProgram.MaxAttribs), + extra_ARB_vertex_program_version_es2 }, + + /* OES_texture_3D */ + { GL_TEXTURE_BINDING_3D, LOC_CUSTOM, TYPE_INT, TEXTURE_3D_INDEX, NO_EXTRA }, + { GL_MAX_3D_TEXTURE_SIZE, LOC_CUSTOM, TYPE_INT, + offsetof(struct gl_context, Const.Max3DTextureLevels), NO_EXTRA }, + + /* GL_ARB_fragment_program/OES_standard_derivatives */ + { GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB, + CONTEXT_ENUM(Hint.FragmentShaderDerivative), extra_ARB_fragment_shader }, +#endif /* FEATURE_GL || FEATURE_ES2 */ + +#if FEATURE_ES2 + /* Enums unique to OpenGL ES 2.0 */ + { 0, 0, TYPE_API_MASK, API_OPENGLES2_BIT, NO_EXTRA }, + { GL_MAX_FRAGMENT_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, + { GL_MAX_VARYING_VECTORS, CONTEXT_INT(Const.MaxVarying), NO_EXTRA }, + { GL_MAX_VERTEX_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, + { GL_SHADER_COMPILER, CONST(1), NO_EXTRA }, + /* OES_get_program_binary */ + { GL_NUM_SHADER_BINARY_FORMATS, CONST(0), NO_EXTRA }, + { GL_SHADER_BINARY_FORMATS, CONST(0), NO_EXTRA }, +#endif /* FEATURE_ES2 */ + +#if FEATURE_GL + /* Remaining enums are only in OpenGL */ + { 0, 0, TYPE_API_MASK, API_OPENGL_BIT, NO_EXTRA }, + { GL_ACCUM_RED_BITS, BUFFER_INT(Visual.accumRedBits), NO_EXTRA }, + { GL_ACCUM_GREEN_BITS, BUFFER_INT(Visual.accumGreenBits), NO_EXTRA }, + { GL_ACCUM_BLUE_BITS, BUFFER_INT(Visual.accumBlueBits), NO_EXTRA }, + { GL_ACCUM_ALPHA_BITS, BUFFER_INT(Visual.accumAlphaBits), NO_EXTRA }, + { GL_ACCUM_CLEAR_VALUE, CONTEXT_FIELD(Accum.ClearColor[0], TYPE_FLOATN_4), NO_EXTRA }, + { GL_ALPHA_BIAS, CONTEXT_FLOAT(Pixel.AlphaBias), NO_EXTRA }, + { GL_ALPHA_SCALE, CONTEXT_FLOAT(Pixel.AlphaScale), NO_EXTRA }, + { GL_ATTRIB_STACK_DEPTH, CONTEXT_INT(AttribStackDepth), NO_EXTRA }, + { GL_AUTO_NORMAL, CONTEXT_BOOL(Eval.AutoNormal), NO_EXTRA }, + { GL_AUX_BUFFERS, BUFFER_INT(Visual.numAuxBuffers), NO_EXTRA }, + { GL_BLUE_BIAS, CONTEXT_FLOAT(Pixel.BlueBias), NO_EXTRA }, + { GL_BLUE_SCALE, CONTEXT_FLOAT(Pixel.BlueScale), NO_EXTRA }, + { GL_CLIENT_ATTRIB_STACK_DEPTH, CONTEXT_INT(ClientAttribStackDepth), NO_EXTRA }, + { GL_COLOR_MATERIAL_FACE, CONTEXT_ENUM(Light.ColorMaterialFace), NO_EXTRA }, + { GL_COLOR_MATERIAL_PARAMETER, CONTEXT_ENUM(Light.ColorMaterialMode), NO_EXTRA }, + { GL_CURRENT_INDEX, + CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_COLOR_INDEX][0]), + extra_flush_current }, + { GL_CURRENT_RASTER_COLOR, + CONTEXT_FIELD(Current.RasterColor[0], TYPE_FLOATN_4), NO_EXTRA }, + { GL_CURRENT_RASTER_DISTANCE, CONTEXT_FLOAT(Current.RasterDistance), NO_EXTRA }, + { GL_CURRENT_RASTER_INDEX, CONST(1), NO_EXTRA }, + { GL_CURRENT_RASTER_POSITION, CONTEXT_FLOAT4(Current.RasterPos[0]), NO_EXTRA }, + { GL_CURRENT_RASTER_SECONDARY_COLOR, + CONTEXT_FIELD(Current.RasterSecondaryColor[0], TYPE_FLOATN_4), NO_EXTRA }, + { GL_CURRENT_RASTER_TEXTURE_COORDS, LOC_CUSTOM, TYPE_FLOAT_4, 0, + extra_valid_texture_unit }, + { GL_CURRENT_RASTER_POSITION_VALID, CONTEXT_BOOL(Current.RasterPosValid), NO_EXTRA }, + { GL_DEPTH_BIAS, CONTEXT_FLOAT(Pixel.DepthBias), NO_EXTRA }, + { GL_DEPTH_SCALE, CONTEXT_FLOAT(Pixel.DepthScale), NO_EXTRA }, + { GL_DOUBLEBUFFER, BUFFER_INT(Visual.doubleBufferMode), NO_EXTRA }, + { GL_DRAW_BUFFER, BUFFER_ENUM(ColorDrawBuffer[0]), NO_EXTRA }, + { GL_EDGE_FLAG, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA }, + { GL_FEEDBACK_BUFFER_SIZE, CONTEXT_INT(Feedback.BufferSize), NO_EXTRA }, + { GL_FEEDBACK_BUFFER_TYPE, CONTEXT_ENUM(Feedback.Type), NO_EXTRA }, + { GL_FOG_INDEX, CONTEXT_FLOAT(Fog.Index), NO_EXTRA }, + { GL_GREEN_BIAS, CONTEXT_FLOAT(Pixel.GreenBias), NO_EXTRA }, + { GL_GREEN_SCALE, CONTEXT_FLOAT(Pixel.GreenScale), NO_EXTRA }, + { GL_INDEX_BITS, BUFFER_INT(Visual.indexBits), extra_new_buffers }, + { GL_INDEX_CLEAR_VALUE, CONTEXT_INT(Color.ClearIndex), NO_EXTRA }, + { GL_INDEX_MODE, CONST(0) , NO_EXTRA}, + { GL_INDEX_OFFSET, CONTEXT_INT(Pixel.IndexOffset), NO_EXTRA }, + { GL_INDEX_SHIFT, CONTEXT_INT(Pixel.IndexShift), NO_EXTRA }, + { GL_INDEX_WRITEMASK, CONTEXT_INT(Color.IndexMask), NO_EXTRA }, + { GL_LIGHT_MODEL_COLOR_CONTROL, CONTEXT_ENUM(Light.Model.ColorControl), NO_EXTRA }, + { GL_LIGHT_MODEL_LOCAL_VIEWER, CONTEXT_BOOL(Light.Model.LocalViewer), NO_EXTRA }, + { GL_LINE_STIPPLE, CONTEXT_BOOL(Line.StippleFlag), NO_EXTRA }, + { GL_LINE_STIPPLE_PATTERN, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, + { GL_LINE_STIPPLE_REPEAT, CONTEXT_INT(Line.StippleFactor), NO_EXTRA }, + { GL_LINE_WIDTH_GRANULARITY, CONTEXT_FLOAT(Const.LineWidthGranularity), NO_EXTRA }, + { GL_LIST_BASE, CONTEXT_INT(List.ListBase), NO_EXTRA }, + { GL_LIST_INDEX, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, + { GL_LIST_MODE, LOC_CUSTOM, TYPE_ENUM, 0, NO_EXTRA }, + { GL_INDEX_LOGIC_OP, CONTEXT_BOOL(Color.IndexLogicOpEnabled), NO_EXTRA }, + { GL_MAP1_COLOR_4, CONTEXT_BOOL(Eval.Map1Color4), NO_EXTRA }, + { GL_MAP1_GRID_DOMAIN, CONTEXT_FLOAT2(Eval.MapGrid1u1), NO_EXTRA }, + { GL_MAP1_GRID_SEGMENTS, CONTEXT_INT(Eval.MapGrid1un), NO_EXTRA }, + { GL_MAP1_INDEX, CONTEXT_BOOL(Eval.Map1Index), NO_EXTRA }, + { GL_MAP1_NORMAL, CONTEXT_BOOL(Eval.Map1Normal), NO_EXTRA }, + { GL_MAP1_TEXTURE_COORD_1, CONTEXT_BOOL(Eval.Map1TextureCoord1), NO_EXTRA }, + { GL_MAP1_TEXTURE_COORD_2, CONTEXT_BOOL(Eval.Map1TextureCoord2), NO_EXTRA }, + { GL_MAP1_TEXTURE_COORD_3, CONTEXT_BOOL(Eval.Map1TextureCoord3), NO_EXTRA }, + { GL_MAP1_TEXTURE_COORD_4, CONTEXT_BOOL(Eval.Map1TextureCoord4), NO_EXTRA }, + { GL_MAP1_VERTEX_3, CONTEXT_BOOL(Eval.Map1Vertex3), NO_EXTRA }, + { GL_MAP1_VERTEX_4, CONTEXT_BOOL(Eval.Map1Vertex4), NO_EXTRA }, + { GL_MAP2_COLOR_4, CONTEXT_BOOL(Eval.Map2Color4), NO_EXTRA }, + { GL_MAP2_GRID_DOMAIN, LOC_CUSTOM, TYPE_FLOAT_4, 0, NO_EXTRA }, + { GL_MAP2_GRID_SEGMENTS, CONTEXT_INT2(Eval.MapGrid2un), NO_EXTRA }, + { GL_MAP2_INDEX, CONTEXT_BOOL(Eval.Map2Index), NO_EXTRA }, + { GL_MAP2_NORMAL, CONTEXT_BOOL(Eval.Map2Normal), NO_EXTRA }, + { GL_MAP2_TEXTURE_COORD_1, CONTEXT_BOOL(Eval.Map2TextureCoord1), NO_EXTRA }, + { GL_MAP2_TEXTURE_COORD_2, CONTEXT_BOOL(Eval.Map2TextureCoord2), NO_EXTRA }, + { GL_MAP2_TEXTURE_COORD_3, CONTEXT_BOOL(Eval.Map2TextureCoord3), NO_EXTRA }, + { GL_MAP2_TEXTURE_COORD_4, CONTEXT_BOOL(Eval.Map2TextureCoord4), NO_EXTRA }, + { GL_MAP2_VERTEX_3, CONTEXT_BOOL(Eval.Map2Vertex3), NO_EXTRA }, + { GL_MAP2_VERTEX_4, CONTEXT_BOOL(Eval.Map2Vertex4), NO_EXTRA }, + { GL_MAP_COLOR, CONTEXT_BOOL(Pixel.MapColorFlag), NO_EXTRA }, + { GL_MAP_STENCIL, CONTEXT_BOOL(Pixel.MapStencilFlag), NO_EXTRA }, + { GL_MAX_ATTRIB_STACK_DEPTH, CONST(MAX_ATTRIB_STACK_DEPTH), NO_EXTRA }, + { GL_MAX_CLIENT_ATTRIB_STACK_DEPTH, CONST(MAX_CLIENT_ATTRIB_STACK_DEPTH), NO_EXTRA }, + + { GL_MAX_EVAL_ORDER, CONST(MAX_EVAL_ORDER), NO_EXTRA }, + { GL_MAX_LIST_NESTING, CONST(MAX_LIST_NESTING), NO_EXTRA }, + { GL_MAX_NAME_STACK_DEPTH, CONST(MAX_NAME_STACK_DEPTH), NO_EXTRA }, + { GL_MAX_PIXEL_MAP_TABLE, CONST(MAX_PIXEL_MAP_TABLE), NO_EXTRA }, + { GL_NAME_STACK_DEPTH, CONTEXT_INT(Select.NameStackDepth), NO_EXTRA }, + { GL_PACK_LSB_FIRST, CONTEXT_BOOL(Pack.LsbFirst), NO_EXTRA }, + { GL_PACK_ROW_LENGTH, CONTEXT_INT(Pack.RowLength), NO_EXTRA }, + { GL_PACK_SKIP_PIXELS, CONTEXT_INT(Pack.SkipPixels), NO_EXTRA }, + { GL_PACK_SKIP_ROWS, CONTEXT_INT(Pack.SkipRows), NO_EXTRA }, + { GL_PACK_SWAP_BYTES, CONTEXT_BOOL(Pack.SwapBytes), NO_EXTRA }, + { GL_PACK_IMAGE_HEIGHT_EXT, CONTEXT_INT(Pack.ImageHeight), NO_EXTRA }, + { GL_PACK_INVERT_MESA, CONTEXT_BOOL(Pack.Invert), NO_EXTRA }, + { GL_PIXEL_MAP_A_TO_A_SIZE, CONTEXT_INT(PixelMaps.AtoA.Size), NO_EXTRA }, + { GL_PIXEL_MAP_B_TO_B_SIZE, CONTEXT_INT(PixelMaps.BtoB.Size), NO_EXTRA }, + { GL_PIXEL_MAP_G_TO_G_SIZE, CONTEXT_INT(PixelMaps.GtoG.Size), NO_EXTRA }, + { GL_PIXEL_MAP_I_TO_A_SIZE, CONTEXT_INT(PixelMaps.ItoA.Size), NO_EXTRA }, + { GL_PIXEL_MAP_I_TO_B_SIZE, CONTEXT_INT(PixelMaps.ItoB.Size), NO_EXTRA }, + { GL_PIXEL_MAP_I_TO_G_SIZE, CONTEXT_INT(PixelMaps.ItoG.Size), NO_EXTRA }, + { GL_PIXEL_MAP_I_TO_I_SIZE, CONTEXT_INT(PixelMaps.ItoI.Size), NO_EXTRA }, + { GL_PIXEL_MAP_I_TO_R_SIZE, CONTEXT_INT(PixelMaps.ItoR.Size), NO_EXTRA }, + { GL_PIXEL_MAP_R_TO_R_SIZE, CONTEXT_INT(PixelMaps.RtoR.Size), NO_EXTRA }, + { GL_PIXEL_MAP_S_TO_S_SIZE, CONTEXT_INT(PixelMaps.StoS.Size), NO_EXTRA }, + { GL_POINT_SIZE_GRANULARITY, CONTEXT_FLOAT(Const.PointSizeGranularity), NO_EXTRA }, + { GL_POLYGON_MODE, CONTEXT_ENUM2(Polygon.FrontMode), NO_EXTRA }, + { GL_POLYGON_OFFSET_BIAS_EXT, CONTEXT_FLOAT(Polygon.OffsetUnits), NO_EXTRA }, + { GL_POLYGON_OFFSET_POINT, CONTEXT_BOOL(Polygon.OffsetPoint), NO_EXTRA }, + { GL_POLYGON_OFFSET_LINE, CONTEXT_BOOL(Polygon.OffsetLine), NO_EXTRA }, + { GL_POLYGON_SMOOTH, CONTEXT_BOOL(Polygon.SmoothFlag), NO_EXTRA }, + { GL_POLYGON_SMOOTH_HINT, CONTEXT_ENUM(Hint.PolygonSmooth), NO_EXTRA }, + { GL_POLYGON_STIPPLE, CONTEXT_BOOL(Polygon.StippleFlag), NO_EXTRA }, + { GL_READ_BUFFER, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, + { GL_RED_BIAS, CONTEXT_FLOAT(Pixel.RedBias), NO_EXTRA }, + { GL_RED_SCALE, CONTEXT_FLOAT(Pixel.RedScale), NO_EXTRA }, + { GL_RENDER_MODE, CONTEXT_ENUM(RenderMode), NO_EXTRA }, + { GL_RGBA_MODE, CONST(1), NO_EXTRA }, + { GL_SELECTION_BUFFER_SIZE, CONTEXT_INT(Select.BufferSize), NO_EXTRA }, + { GL_SHARED_TEXTURE_PALETTE_EXT, CONTEXT_BOOL(Texture.SharedPalette), NO_EXTRA }, + + { GL_STEREO, BUFFER_INT(Visual.stereoMode), NO_EXTRA }, + + { GL_TEXTURE_1D, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA }, + { GL_TEXTURE_3D, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA }, + { GL_TEXTURE_1D_ARRAY_EXT, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA }, + { GL_TEXTURE_2D_ARRAY_EXT, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA }, + + { GL_TEXTURE_BINDING_1D, LOC_CUSTOM, TYPE_INT, TEXTURE_1D_INDEX, NO_EXTRA }, + { GL_TEXTURE_BINDING_1D_ARRAY, LOC_CUSTOM, TYPE_INT, + TEXTURE_1D_ARRAY_INDEX, extra_MESA_texture_array }, + { GL_TEXTURE_BINDING_2D_ARRAY, LOC_CUSTOM, TYPE_INT, + TEXTURE_1D_ARRAY_INDEX, extra_MESA_texture_array }, + { GL_MAX_ARRAY_TEXTURE_LAYERS_EXT, + CONTEXT_INT(Const.MaxArrayTextureLayers), extra_MESA_texture_array }, + + { GL_TEXTURE_GEN_S, LOC_TEXUNIT, TYPE_BIT_0, + offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA }, + { GL_TEXTURE_GEN_T, LOC_TEXUNIT, TYPE_BIT_1, + offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA }, + { GL_TEXTURE_GEN_R, LOC_TEXUNIT, TYPE_BIT_2, + offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA }, + { GL_TEXTURE_GEN_Q, LOC_TEXUNIT, TYPE_BIT_3, + offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA }, + { GL_UNPACK_LSB_FIRST, CONTEXT_BOOL(Unpack.LsbFirst), NO_EXTRA }, + { GL_UNPACK_ROW_LENGTH, CONTEXT_INT(Unpack.RowLength), NO_EXTRA }, + { GL_UNPACK_SKIP_PIXELS, CONTEXT_INT(Unpack.SkipPixels), NO_EXTRA }, + { GL_UNPACK_SKIP_ROWS, CONTEXT_INT(Unpack.SkipRows), NO_EXTRA }, + { GL_UNPACK_SWAP_BYTES, CONTEXT_BOOL(Unpack.SwapBytes), NO_EXTRA }, + { GL_UNPACK_SKIP_IMAGES_EXT, CONTEXT_INT(Unpack.SkipImages), NO_EXTRA }, + { GL_UNPACK_IMAGE_HEIGHT_EXT, CONTEXT_INT(Unpack.ImageHeight), NO_EXTRA }, + { GL_UNPACK_CLIENT_STORAGE_APPLE, CONTEXT_BOOL(Unpack.ClientStorage), NO_EXTRA }, + { GL_ZOOM_X, CONTEXT_FLOAT(Pixel.ZoomX), NO_EXTRA }, + { GL_ZOOM_Y, CONTEXT_FLOAT(Pixel.ZoomY), NO_EXTRA }, + + /* Vertex arrays */ + { GL_VERTEX_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, + { GL_NORMAL_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, + { GL_COLOR_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, + { GL_INDEX_ARRAY, ARRAY_BOOL(Index.Enabled), NO_EXTRA }, + { GL_INDEX_ARRAY_TYPE, ARRAY_ENUM(Index.Type), NO_EXTRA }, + { GL_INDEX_ARRAY_STRIDE, ARRAY_INT(Index.Stride), NO_EXTRA }, + { GL_INDEX_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, + { GL_TEXTURE_COORD_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, + { GL_EDGE_FLAG_ARRAY, ARRAY_BOOL(EdgeFlag.Enabled), NO_EXTRA }, + { GL_EDGE_FLAG_ARRAY_STRIDE, ARRAY_INT(EdgeFlag.Stride), NO_EXTRA }, + { GL_EDGE_FLAG_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, + + /* GL_ARB_texture_compression */ + { GL_TEXTURE_COMPRESSION_HINT_ARB, CONTEXT_INT(Hint.TextureCompression), NO_EXTRA }, + + /* GL_EXT_compiled_vertex_array */ + { GL_ARRAY_ELEMENT_LOCK_FIRST_EXT, CONTEXT_INT(Array.LockFirst), + extra_EXT_compiled_vertex_array }, + { GL_ARRAY_ELEMENT_LOCK_COUNT_EXT, CONTEXT_INT(Array.LockCount), + extra_EXT_compiled_vertex_array }, + + /* GL_ARB_transpose_matrix */ + { GL_TRANSPOSE_MODELVIEW_MATRIX_ARB, + CONTEXT_MATRIX_T(ModelviewMatrixStack), NO_EXTRA }, + { GL_TRANSPOSE_PROJECTION_MATRIX_ARB, + CONTEXT_MATRIX_T(ProjectionMatrixStack.Top), NO_EXTRA }, + { GL_TRANSPOSE_TEXTURE_MATRIX_ARB, CONTEXT_MATRIX_T(TextureMatrixStack), NO_EXTRA }, + + /* GL_EXT_secondary_color */ + { GL_COLOR_SUM_EXT, CONTEXT_BOOL(Fog.ColorSumEnabled), + extra_EXT_secondary_color_ARB_vertex_program }, + { GL_CURRENT_SECONDARY_COLOR_EXT, + CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR1][0], TYPE_FLOATN_4), + extra_EXT_secondary_color_flush_current }, + { GL_SECONDARY_COLOR_ARRAY_EXT, ARRAY_BOOL(SecondaryColor.Enabled), + extra_EXT_secondary_color }, + { GL_SECONDARY_COLOR_ARRAY_TYPE_EXT, ARRAY_ENUM(SecondaryColor.Type), + extra_EXT_secondary_color }, + { GL_SECONDARY_COLOR_ARRAY_STRIDE_EXT, ARRAY_INT(SecondaryColor.Stride), + extra_EXT_secondary_color }, + { GL_SECONDARY_COLOR_ARRAY_SIZE_EXT, ARRAY_INT(SecondaryColor.Size), + extra_EXT_secondary_color }, + + /* GL_EXT_fog_coord */ + { GL_CURRENT_FOG_COORDINATE_EXT, + CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_FOG][0]), + extra_EXT_fog_coord_flush_current }, + { GL_FOG_COORDINATE_ARRAY_EXT, ARRAY_BOOL(FogCoord.Enabled), + extra_EXT_fog_coord }, + { GL_FOG_COORDINATE_ARRAY_TYPE_EXT, ARRAY_ENUM(FogCoord.Type), + extra_EXT_fog_coord }, + { GL_FOG_COORDINATE_ARRAY_STRIDE_EXT, ARRAY_INT(FogCoord.Stride), + extra_EXT_fog_coord }, + { GL_FOG_COORDINATE_SOURCE_EXT, CONTEXT_ENUM(Fog.FogCoordinateSource), + extra_EXT_fog_coord }, + + /* GL_IBM_rasterpos_clip */ + { GL_RASTER_POSITION_UNCLIPPED_IBM, + CONTEXT_BOOL(Transform.RasterPositionUnclipped), + extra_IBM_rasterpos_clip }, + + /* GL_NV_point_sprite */ + { GL_POINT_SPRITE_R_MODE_NV, + CONTEXT_ENUM(Point.SpriteRMode), extra_NV_point_sprite }, + { GL_POINT_SPRITE_COORD_ORIGIN, CONTEXT_ENUM(Point.SpriteOrigin), + extra_NV_point_sprite_ARB_point_sprite }, + + /* GL_NV_vertex_program */ + { GL_VERTEX_PROGRAM_BINDING_NV, LOC_CUSTOM, TYPE_INT, 0, + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY0_NV, ARRAY_BOOL(VertexAttrib[0].Enabled), + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY1_NV, ARRAY_BOOL(VertexAttrib[1].Enabled), + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY2_NV, ARRAY_BOOL(VertexAttrib[2].Enabled), + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY3_NV, ARRAY_BOOL(VertexAttrib[3].Enabled), + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY4_NV, ARRAY_BOOL(VertexAttrib[4].Enabled), + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY5_NV, ARRAY_BOOL(VertexAttrib[5].Enabled), + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY6_NV, ARRAY_BOOL(VertexAttrib[6].Enabled), + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY7_NV, ARRAY_BOOL(VertexAttrib[7].Enabled), + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY8_NV, ARRAY_BOOL(VertexAttrib[8].Enabled), + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY9_NV, ARRAY_BOOL(VertexAttrib[9].Enabled), + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY10_NV, ARRAY_BOOL(VertexAttrib[10].Enabled), + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY11_NV, ARRAY_BOOL(VertexAttrib[11].Enabled), + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY12_NV, ARRAY_BOOL(VertexAttrib[12].Enabled), + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY13_NV, ARRAY_BOOL(VertexAttrib[13].Enabled), + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY14_NV, ARRAY_BOOL(VertexAttrib[14].Enabled), + extra_NV_vertex_program }, + { GL_VERTEX_ATTRIB_ARRAY15_NV, ARRAY_BOOL(VertexAttrib[15].Enabled), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB0_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[0]), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB1_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[1]), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB2_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[2]), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB3_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[3]), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB4_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[4]), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB5_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[5]), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB6_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[6]), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB7_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[7]), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB8_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[8]), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB9_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[9]), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB10_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[10]), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB11_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[11]), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB12_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[12]), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB13_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[13]), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB14_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[14]), + extra_NV_vertex_program }, + { GL_MAP1_VERTEX_ATTRIB15_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[15]), + extra_NV_vertex_program }, + + /* GL_NV_fragment_program */ + { GL_FRAGMENT_PROGRAM_NV, CONTEXT_BOOL(FragmentProgram.Enabled), + extra_NV_fragment_program }, + { GL_FRAGMENT_PROGRAM_BINDING_NV, LOC_CUSTOM, TYPE_INT, 0, + extra_NV_fragment_program }, + { GL_MAX_FRAGMENT_PROGRAM_LOCAL_PARAMETERS_NV, + CONST(MAX_NV_FRAGMENT_PROGRAM_PARAMS), + extra_NV_fragment_program }, + + /* GL_NV_texture_rectangle */ + { GL_TEXTURE_RECTANGLE_NV, + LOC_CUSTOM, TYPE_BOOLEAN, 0, extra_NV_texture_rectangle }, + { GL_TEXTURE_BINDING_RECTANGLE_NV, + LOC_CUSTOM, TYPE_INT, TEXTURE_RECT_INDEX, extra_NV_texture_rectangle }, + { GL_MAX_RECTANGLE_TEXTURE_SIZE_NV, + CONTEXT_INT(Const.MaxTextureRectSize), extra_NV_texture_rectangle }, + + /* GL_EXT_stencil_two_side */ + { GL_STENCIL_TEST_TWO_SIDE_EXT, CONTEXT_BOOL(Stencil.TestTwoSide), + extra_EXT_stencil_two_side }, + { GL_ACTIVE_STENCIL_FACE_EXT, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, + + /* GL_NV_light_max_exponent */ + { GL_MAX_SHININESS_NV, CONTEXT_FLOAT(Const.MaxShininess), + extra_NV_light_max_exponent }, + { GL_MAX_SPOT_EXPONENT_NV, CONTEXT_FLOAT(Const.MaxSpotExponent), + extra_NV_light_max_exponent }, + + /* GL_NV_primitive_restart */ + { GL_PRIMITIVE_RESTART_NV, CONTEXT_BOOL(Array.PrimitiveRestart), + extra_NV_primitive_restart }, + { GL_PRIMITIVE_RESTART_INDEX_NV, CONTEXT_INT(Array.RestartIndex), + extra_NV_primitive_restart }, + + /* GL_ARB_vertex_buffer_object */ + { GL_INDEX_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, + offsetof(struct gl_array_object, Index.BufferObj), NO_EXTRA }, + { GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, + offsetof(struct gl_array_object, EdgeFlag.BufferObj), NO_EXTRA }, + { GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, + offsetof(struct gl_array_object, SecondaryColor.BufferObj), NO_EXTRA }, + { GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, + offsetof(struct gl_array_object, FogCoord.BufferObj), NO_EXTRA }, + + /* GL_EXT_pixel_buffer_object */ + { GL_PIXEL_PACK_BUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0, + extra_EXT_pixel_buffer_object }, + { GL_PIXEL_UNPACK_BUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0, + extra_EXT_pixel_buffer_object }, + + /* GL_ARB_vertex_program */ + { GL_VERTEX_PROGRAM_ARB, /* == GL_VERTEX_PROGRAM_NV */ + CONTEXT_BOOL(VertexProgram.Enabled), + extra_ARB_vertex_program_NV_vertex_program }, + { GL_VERTEX_PROGRAM_POINT_SIZE_ARB, /* == GL_VERTEX_PROGRAM_POINT_SIZE_NV*/ + CONTEXT_BOOL(VertexProgram.PointSizeEnabled), + extra_ARB_vertex_program_NV_vertex_program }, + { GL_VERTEX_PROGRAM_TWO_SIDE_ARB, /* == GL_VERTEX_PROGRAM_TWO_SIDE_NV */ + CONTEXT_BOOL(VertexProgram.TwoSideEnabled), + extra_ARB_vertex_program_NV_vertex_program }, + { GL_MAX_PROGRAM_MATRIX_STACK_DEPTH_ARB, /* == GL_MAX_TRACK_MATRIX_STACK_DEPTH_NV */ + CONTEXT_INT(Const.MaxProgramMatrixStackDepth), + extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program }, + { GL_MAX_PROGRAM_MATRICES_ARB, /* == GL_MAX_TRACK_MATRICES_NV */ + CONTEXT_INT(Const.MaxProgramMatrices), + extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program }, + { GL_CURRENT_MATRIX_STACK_DEPTH_ARB, /* == GL_CURRENT_MATRIX_STACK_DEPTH_NV */ + LOC_CUSTOM, TYPE_INT, 0, + extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program }, + + { GL_CURRENT_MATRIX_ARB, /* == GL_CURRENT_MATRIX_NV */ + LOC_CUSTOM, TYPE_MATRIX, 0, + extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program }, + { GL_TRANSPOSE_CURRENT_MATRIX_ARB, /* == GL_CURRENT_MATRIX_NV */ + LOC_CUSTOM, TYPE_MATRIX, 0, + extra_ARB_vertex_program_ARB_fragment_program }, + + { GL_PROGRAM_ERROR_POSITION_ARB, /* == GL_PROGRAM_ERROR_POSITION_NV */ + CONTEXT_INT(Program.ErrorPos), + extra_NV_vertex_program_ARB_vertex_program_ARB_fragment_program_NV_vertex_program }, + + /* GL_ARB_fragment_program */ + { GL_FRAGMENT_PROGRAM_ARB, CONTEXT_BOOL(FragmentProgram.Enabled), + extra_ARB_fragment_program }, + + /* GL_EXT_depth_bounds_test */ + { GL_DEPTH_BOUNDS_TEST_EXT, CONTEXT_BOOL(Depth.BoundsTest), + extra_EXT_depth_bounds_test }, + { GL_DEPTH_BOUNDS_EXT, CONTEXT_FLOAT2(Depth.BoundsMin), + extra_EXT_depth_bounds_test }, + + /* GL_ARB_depth_clamp*/ + { GL_DEPTH_CLAMP, CONTEXT_BOOL(Transform.DepthClamp), + extra_ARB_depth_clamp }, + + /* GL_ARB_draw_buffers */ + { GL_DRAW_BUFFER0_ARB, BUFFER_ENUM(ColorDrawBuffer[0]), NO_EXTRA }, + { GL_DRAW_BUFFER1_ARB, BUFFER_ENUM(ColorDrawBuffer[1]), + extra_valid_draw_buffer }, + { GL_DRAW_BUFFER2_ARB, BUFFER_ENUM(ColorDrawBuffer[2]), + extra_valid_draw_buffer }, + { GL_DRAW_BUFFER3_ARB, BUFFER_ENUM(ColorDrawBuffer[3]), + extra_valid_draw_buffer }, + { GL_DRAW_BUFFER4_ARB, BUFFER_ENUM(ColorDrawBuffer[4]), + extra_valid_draw_buffer }, + { GL_DRAW_BUFFER5_ARB, BUFFER_ENUM(ColorDrawBuffer[5]), + extra_valid_draw_buffer }, + { GL_DRAW_BUFFER6_ARB, BUFFER_ENUM(ColorDrawBuffer[6]), + extra_valid_draw_buffer }, + { GL_DRAW_BUFFER7_ARB, BUFFER_ENUM(ColorDrawBuffer[7]), + extra_valid_draw_buffer }, + + /* GL_ATI_fragment_shader */ + { GL_NUM_FRAGMENT_REGISTERS_ATI, CONST(6), extra_ATI_fragment_shader }, + { GL_NUM_FRAGMENT_CONSTANTS_ATI, CONST(8), extra_ATI_fragment_shader }, + { GL_NUM_PASSES_ATI, CONST(2), extra_ATI_fragment_shader }, + { GL_NUM_INSTRUCTIONS_PER_PASS_ATI, CONST(8), extra_ATI_fragment_shader }, + { GL_NUM_INSTRUCTIONS_TOTAL_ATI, CONST(16), extra_ATI_fragment_shader }, + { GL_COLOR_ALPHA_PAIRING_ATI, CONST(GL_TRUE), extra_ATI_fragment_shader }, + { GL_NUM_LOOPBACK_COMPONENTS_ATI, CONST(3), extra_ATI_fragment_shader }, + { GL_NUM_INPUT_INTERPOLATOR_COMPONENTS_ATI, + CONST(3), extra_ATI_fragment_shader }, + + /* GL_EXT_framebuffer_object */ + { GL_MAX_COLOR_ATTACHMENTS_EXT, CONTEXT_INT(Const.MaxColorAttachments), + extra_EXT_framebuffer_object }, + + /* GL_EXT_framebuffer_blit + * NOTE: GL_DRAW_FRAMEBUFFER_BINDING_EXT == GL_FRAMEBUFFER_BINDING_EXT */ + { GL_READ_FRAMEBUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0, + extra_EXT_framebuffer_blit }, + + /* GL_EXT_provoking_vertex */ + { GL_PROVOKING_VERTEX_EXT, + CONTEXT_BOOL(Light.ProvokingVertex), extra_EXT_provoking_vertex }, + { GL_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION_EXT, + CONTEXT_BOOL(Const.QuadsFollowProvokingVertexConvention), + extra_EXT_provoking_vertex }, + + /* GL_ARB_framebuffer_object */ + { GL_MAX_SAMPLES, CONTEXT_INT(Const.MaxSamples), + extra_ARB_framebuffer_object_EXT_framebuffer_multisample }, + + /* GL_APPLE_vertex_array_object */ + { GL_VERTEX_ARRAY_BINDING_APPLE, ARRAY_INT(Name), + extra_APPLE_vertex_array_object }, + + /* GL_ARB_seamless_cube_map */ + { GL_TEXTURE_CUBE_MAP_SEAMLESS, + CONTEXT_BOOL(Texture.CubeMapSeamless), extra_ARB_seamless_cube_map }, + + /* GL_ARB_sync */ + { GL_MAX_SERVER_WAIT_TIMEOUT, + CONTEXT_INT64(Const.MaxServerWaitTimeout), extra_ARB_sync }, + + /* GL_EXT_texture_integer */ + { GL_RGBA_INTEGER_MODE_EXT, BUFFER_BOOL(_IntegerColor), + extra_EXT_texture_integer }, + + /* GL_EXT_transform_feedback */ + { GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, LOC_CUSTOM, TYPE_INT, 0, + extra_EXT_transform_feedback }, + { GL_RASTERIZER_DISCARD, CONTEXT_BOOL(TransformFeedback.RasterDiscard), + extra_EXT_transform_feedback }, + { GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS, + CONTEXT_INT(Const.MaxTransformFeedbackInterleavedComponents), + extra_EXT_transform_feedback }, + { GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS, + CONTEXT_INT(Const.MaxTransformFeedbackSeparateAttribs), + extra_EXT_transform_feedback }, + { GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS, + CONTEXT_INT(Const.MaxTransformFeedbackSeparateComponents), + extra_EXT_transform_feedback }, + + /* GL_ARB_transform_feedback2 */ + { GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED, LOC_CUSTOM, TYPE_BOOLEAN, 0, + extra_ARB_transform_feedback2 }, + { GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE, LOC_CUSTOM, TYPE_BOOLEAN, 0, + extra_ARB_transform_feedback2 }, + { GL_TRANSFORM_FEEDBACK_BINDING, LOC_CUSTOM, TYPE_INT, 0, + extra_ARB_transform_feedback2 }, + + /* GL_ARB_geometry_shader4 */ + { GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_ARB, + CONTEXT_INT(Const.MaxGeometryTextureImageUnits), + extra_ARB_geometry_shader4 }, + { GL_MAX_GEOMETRY_OUTPUT_VERTICES_ARB, + CONTEXT_INT(Const.MaxGeometryOutputVertices), + extra_ARB_geometry_shader4 }, + { GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_ARB, + CONTEXT_INT(Const.MaxGeometryTotalOutputComponents), + extra_ARB_geometry_shader4 }, + { GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_ARB, + CONTEXT_INT(Const.GeometryProgram.MaxUniformComponents), + extra_ARB_geometry_shader4 }, + { GL_MAX_GEOMETRY_VARYING_COMPONENTS_ARB, + CONTEXT_INT(Const.MaxGeometryVaryingComponents), + extra_ARB_geometry_shader4 }, + { GL_MAX_VERTEX_VARYING_COMPONENTS_ARB, + CONTEXT_INT(Const.MaxVertexVaryingComponents), + extra_ARB_geometry_shader4 }, + + /* GL_EXT_gpu_shader4 / GL 3.0 */ + { GL_MIN_PROGRAM_TEXEL_OFFSET, + CONTEXT_INT(Const.MinProgramTexelOffset), + extra_EXT_gpu_shader4 }, + { GL_MAX_PROGRAM_TEXEL_OFFSET, + CONTEXT_INT(Const.MaxProgramTexelOffset), + extra_EXT_gpu_shader4 }, + + /* GL 3.0 */ + { GL_NUM_EXTENSIONS, LOC_CUSTOM, TYPE_INT, 0, extra_version_30 }, + { GL_MAJOR_VERSION, CONTEXT_INT(VersionMajor), extra_version_30 }, + { GL_MINOR_VERSION, CONTEXT_INT(VersionMinor), extra_version_30 }, + { GL_CONTEXT_FLAGS, CONTEXT_INT(Const.ContextFlags), extra_version_30 }, + + /* GL3.0 / GL_EXT_framebuffer_sRGB */ + { GL_FRAMEBUFFER_SRGB_EXT, CONTEXT_BOOL(Color.sRGBEnabled), extra_EXT_framebuffer_sRGB }, + { GL_FRAMEBUFFER_SRGB_CAPABLE_EXT, BUFFER_INT(Visual.sRGBCapable), extra_EXT_framebuffer_sRGB }, + + /* GL 3.1 */ + /* NOTE: different enum values for GL_PRIMITIVE_RESTART_NV + * vs. GL_PRIMITIVE_RESTART! + */ + { GL_PRIMITIVE_RESTART, CONTEXT_BOOL(Array.PrimitiveRestart), + extra_version_31 }, + { GL_PRIMITIVE_RESTART_INDEX, CONTEXT_INT(Array.RestartIndex), + extra_version_31 }, + + + /* GL 3.2 */ + { GL_CONTEXT_PROFILE_MASK, CONTEXT_INT(Const.ProfileMask), + extra_version_32 }, +#endif /* FEATURE_GL */ +}; + +/* All we need now is a way to look up the value struct from the enum. + * The code generated by gcc for the old generated big switch + * statement is a big, balanced, open coded if/else tree, essentially + * an unrolled binary search. It would be natural to sort the new + * enum table and use bsearch(), but we will use a read-only hash + * table instead. bsearch() has a nice guaranteed worst case + * performance, but we're also guaranteed to hit that worst case + * (log2(n) iterations) for about half the enums. Instead, using an + * open addressing hash table, we can find the enum on the first try + * for 80% of the enums, 1 collision for 10% and never more than 5 + * collisions for any enum (typical numbers). And the code is very + * simple, even though it feels a little magic. */ + +static unsigned short table[1024]; +static const int prime_factor = 89, prime_step = 281; + +#ifdef GET_DEBUG +static void +print_table_stats(void) +{ + int i, j, collisions[11], count, hash, mask; + const struct value_desc *d; + + count = 0; + mask = Elements(table) - 1; + memset(collisions, 0, sizeof collisions); + + for (i = 0; i < Elements(table); i++) { + if (!table[i]) + continue; + count++; + d = &values[table[i]]; + hash = (d->pname * prime_factor); + j = 0; + while (1) { + if (values[table[hash & mask]].pname == d->pname) + break; + hash += prime_step; + j++; + } + + if (j < 10) + collisions[j]++; + else + collisions[10]++; + } + + printf("number of enums: %d (total %d)\n", count, Elements(values)); + for (i = 0; i < Elements(collisions) - 1; i++) + if (collisions[i] > 0) + printf(" %d enums with %d %scollisions\n", + collisions[i], i, i == 10 ? "or more " : ""); +} +#endif + +/** + * Initialize the enum hash for a given API + * + * This is called from one_time_init() to insert the enum values that + * are valid for the API in question into the enum hash table. + * + * \param the current context, for determining the API in question + */ +void _mesa_init_get_hash(struct gl_context *ctx) +{ + int i, hash, index, mask; + int api_mask = 0, api_bit; + + mask = Elements(table) - 1; + api_bit = 1 << ctx->API; + + for (i = 0; i < Elements(values); i++) { + if (values[i].type == TYPE_API_MASK) { + api_mask = values[i].offset; + continue; + } + if (!(api_mask & api_bit)) + continue; + + hash = (values[i].pname * prime_factor) & mask; + while (1) { + index = hash & mask; + if (!table[index]) { + table[index] = i; + break; + } + hash += prime_step; + } + } + +#ifdef GET_DEBUG + print_table_stats(); +#endif +} + +/** + * Handle irregular enums + * + * Some values don't conform to the "well-known type at context + * pointer + offset" pattern, so we have this function to catch all + * the corner cases. Typically, it's a computed value or a one-off + * pointer to a custom struct or something. + * + * In this case we can't return a pointer to the value, so we'll have + * to use the temporary variable 'v' declared back in the calling + * glGet*v() function to store the result. + * + * \param ctx the current context + * \param d the struct value_desc that describes the enum + * \param v pointer to the tmp declared in the calling glGet*v() function + */ +static void +find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v) +{ + struct gl_buffer_object *buffer_obj; + struct gl_client_array *array; + GLuint unit, *p; + + switch (d->pname) { + case GL_TEXTURE_1D: + case GL_TEXTURE_2D: + case GL_TEXTURE_3D: + case GL_TEXTURE_1D_ARRAY_EXT: + case GL_TEXTURE_2D_ARRAY_EXT: + case GL_TEXTURE_CUBE_MAP_ARB: + case GL_TEXTURE_RECTANGLE_NV: + v->value_bool = _mesa_IsEnabled(d->pname); + break; + + case GL_LINE_STIPPLE_PATTERN: + /* This is the only GLushort, special case it here by promoting + * to an int rather than introducing a new type. */ + v->value_int = ctx->Line.StipplePattern; + break; + + case GL_CURRENT_RASTER_TEXTURE_COORDS: + unit = ctx->Texture.CurrentUnit; + v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0]; + v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1]; + v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2]; + v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3]; + break; + + case GL_CURRENT_TEXTURE_COORDS: + unit = ctx->Texture.CurrentUnit; + v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0]; + v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1]; + v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2]; + v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3]; + break; + + case GL_COLOR_WRITEMASK: + v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0; + v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0; + v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0; + v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0; + break; + + case GL_EDGE_FLAG: + v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0; + break; + + case GL_READ_BUFFER: + v->value_enum = ctx->ReadBuffer->ColorReadBuffer; + break; + + case GL_MAP2_GRID_DOMAIN: + v->value_float_4[0] = ctx->Eval.MapGrid2u1; + v->value_float_4[1] = ctx->Eval.MapGrid2u2; + v->value_float_4[2] = ctx->Eval.MapGrid2v1; + v->value_float_4[3] = ctx->Eval.MapGrid2v2; + break; + + case GL_TEXTURE_STACK_DEPTH: + unit = ctx->Texture.CurrentUnit; + v->value_int = ctx->TextureMatrixStack[unit].Depth + 1; + break; + case GL_TEXTURE_MATRIX: + unit = ctx->Texture.CurrentUnit; + v->value_matrix = ctx->TextureMatrixStack[unit].Top; + break; + + case GL_TEXTURE_COORD_ARRAY: + case GL_TEXTURE_COORD_ARRAY_SIZE: + case GL_TEXTURE_COORD_ARRAY_TYPE: + case GL_TEXTURE_COORD_ARRAY_STRIDE: + array = &ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture]; + v->value_int = *(GLuint *) ((char *) array + d->offset); + break; + + case GL_ACTIVE_TEXTURE_ARB: + v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit; + break; + case GL_CLIENT_ACTIVE_TEXTURE_ARB: + v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture; + break; + + case GL_MODELVIEW_STACK_DEPTH: + case GL_PROJECTION_STACK_DEPTH: + v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1; + break; + + case GL_MAX_TEXTURE_SIZE: + case GL_MAX_3D_TEXTURE_SIZE: + case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB: + p = (GLuint *) ((char *) ctx + d->offset); + v->value_int = 1 << (*p - 1); + break; + + case GL_SCISSOR_BOX: + v->value_int_4[0] = ctx->Scissor.X; + v->value_int_4[1] = ctx->Scissor.Y; + v->value_int_4[2] = ctx->Scissor.Width; + v->value_int_4[3] = ctx->Scissor.Height; + break; + + case GL_LIST_INDEX: + v->value_int = + ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0; + break; + case GL_LIST_MODE: + if (!ctx->CompileFlag) + v->value_enum = 0; + else if (ctx->ExecuteFlag) + v->value_enum = GL_COMPILE_AND_EXECUTE; + else + v->value_enum = GL_COMPILE; + break; + + case GL_VIEWPORT: + v->value_int_4[0] = ctx->Viewport.X; + v->value_int_4[1] = ctx->Viewport.Y; + v->value_int_4[2] = ctx->Viewport.Width; + v->value_int_4[3] = ctx->Viewport.Height; + break; + + case GL_ACTIVE_STENCIL_FACE_EXT: + v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT; + break; + + case GL_STENCIL_FAIL: + v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace]; + break; + case GL_STENCIL_FUNC: + v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace]; + break; + case GL_STENCIL_PASS_DEPTH_FAIL: + v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace]; + break; + case GL_STENCIL_PASS_DEPTH_PASS: + v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace]; + break; + case GL_STENCIL_REF: + v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace]; + break; + case GL_STENCIL_VALUE_MASK: + v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace]; + break; + case GL_STENCIL_WRITEMASK: + v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace]; + break; + + case GL_NUM_EXTENSIONS: + v->value_int = _mesa_get_extension_count(ctx); + break; + + case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES: + v->value_int = _mesa_get_color_read_type(ctx); + break; + case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES: + v->value_int = _mesa_get_color_read_format(ctx); + break; + + case GL_CURRENT_MATRIX_STACK_DEPTH_ARB: + v->value_int = ctx->CurrentStack->Depth + 1; + break; + case GL_CURRENT_MATRIX_ARB: + case GL_TRANSPOSE_CURRENT_MATRIX_ARB: + v->value_matrix = ctx->CurrentStack->Top; + break; + + case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB: + v->value_int = _mesa_get_compressed_formats(ctx, NULL, GL_FALSE); + break; + case GL_COMPRESSED_TEXTURE_FORMATS_ARB: + v->value_int_n.n = + _mesa_get_compressed_formats(ctx, v->value_int_n.ints, GL_FALSE); + ASSERT(v->value_int_n.n <= 100); + break; + + case GL_MAX_VARYING_FLOATS_ARB: + v->value_int = ctx->Const.MaxVarying * 4; + break; + + /* Various object names */ + + case GL_TEXTURE_BINDING_1D: + case GL_TEXTURE_BINDING_2D: + case GL_TEXTURE_BINDING_3D: + case GL_TEXTURE_BINDING_1D_ARRAY_EXT: + case GL_TEXTURE_BINDING_2D_ARRAY_EXT: + case GL_TEXTURE_BINDING_CUBE_MAP_ARB: + case GL_TEXTURE_BINDING_RECTANGLE_NV: + unit = ctx->Texture.CurrentUnit; + v->value_int = + ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name; + break; + + /* GL_ARB_vertex_buffer_object */ + case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB: + case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB: + case GL_COLOR_ARRAY_BUFFER_BINDING_ARB: + case GL_INDEX_ARRAY_BUFFER_BINDING_ARB: + case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB: + case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB: + case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB: + buffer_obj = (struct gl_buffer_object *) + ((char *) ctx->Array.ArrayObj + d->offset); + v->value_int = buffer_obj->Name; + break; + case GL_ARRAY_BUFFER_BINDING_ARB: + v->value_int = ctx->Array.ArrayBufferObj->Name; + break; + case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB: + v->value_int = + ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].BufferObj->Name; + break; + case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB: + v->value_int = ctx->Array.ElementArrayBufferObj->Name; + break; + + /* ARB_copy_buffer */ + case GL_COPY_READ_BUFFER: + v->value_int = ctx->CopyReadBuffer->Name; + break; + case GL_COPY_WRITE_BUFFER: + v->value_int = ctx->CopyWriteBuffer->Name; + break; + + case GL_FRAGMENT_PROGRAM_BINDING_NV: + v->value_int = + ctx->FragmentProgram.Current ? ctx->FragmentProgram.Current->Base.Id : 0; + break; + case GL_VERTEX_PROGRAM_BINDING_NV: + v->value_int = + ctx->VertexProgram.Current ? ctx->VertexProgram.Current->Base.Id : 0; + break; + case GL_PIXEL_PACK_BUFFER_BINDING_EXT: + v->value_int = ctx->Pack.BufferObj->Name; + break; + case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT: + v->value_int = ctx->Unpack.BufferObj->Name; + break; + case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING: + v->value_int = ctx->TransformFeedback.CurrentBuffer->Name; + break; + case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED: + v->value_int = ctx->TransformFeedback.CurrentObject->Paused; + break; + case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE: + v->value_int = ctx->TransformFeedback.CurrentObject->Active; + break; + case GL_TRANSFORM_FEEDBACK_BINDING: + v->value_int = ctx->TransformFeedback.CurrentObject->Name; + break; + case GL_CURRENT_PROGRAM: + v->value_int = + ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0; + break; + case GL_READ_FRAMEBUFFER_BINDING_EXT: + v->value_int = ctx->ReadBuffer->Name; + break; + case GL_RENDERBUFFER_BINDING_EXT: + v->value_int = + ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0; + break; + case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES: + v->value_int = ctx->Array.ArrayObj->PointSize.BufferObj->Name; + break; + + case GL_MAX_VERTEX_UNIFORM_VECTORS: + v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4; + break; + + case GL_MAX_FRAGMENT_UNIFORM_VECTORS: + v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4; + break; + } +} + +/** + * Check extra constraints on a struct value_desc descriptor + * + * If a struct value_desc has a non-NULL extra pointer, it means that + * there are a number of extra constraints to check or actions to + * perform. The extras is just an integer array where each integer + * encode different constraints or actions. + * + * \param ctx current context + * \param func name of calling glGet*v() function for error reporting + * \param d the struct value_desc that has the extra constraints + * + * \return GL_FALSE if one of the constraints was not satisfied, + * otherwise GL_TRUE. + */ +static GLboolean +check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d) +{ + const GLuint version = ctx->VersionMajor * 10 + ctx->VersionMinor; + int total, enabled; + const int *e; + + total = 0; + enabled = 0; + for (e = d->extra; *e != EXTRA_END; e++) + switch (*e) { + case EXTRA_VERSION_30: + if (version >= 30) { + total++; + enabled++; + } + break; + case EXTRA_VERSION_31: + if (version >= 31) { + total++; + enabled++; + } + break; + case EXTRA_VERSION_32: + if (version >= 32) { + total++; + enabled++; + } + break; + case EXTRA_VERSION_ES2: + if (ctx->API == API_OPENGLES2) { + total++; + enabled++; + } + break; + case EXTRA_NEW_BUFFERS: + if (ctx->NewState & _NEW_BUFFERS) + _mesa_update_state(ctx); + break; + case EXTRA_FLUSH_CURRENT: + FLUSH_CURRENT(ctx, 0); + break; + case EXTRA_VALID_DRAW_BUFFER: + if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) { + _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)", + func, d->pname - GL_DRAW_BUFFER0_ARB); + return GL_FALSE; + } + break; + case EXTRA_VALID_TEXTURE_UNIT: + if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) { + _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)", + func, ctx->Texture.CurrentUnit); + return GL_FALSE; + } + break; + case EXTRA_END: + break; + default: /* *e is a offset into the extension struct */ + total++; + if (*(GLboolean *) ((char *) &ctx->Extensions + *e)) + enabled++; + break; + } + + if (total > 0 && enabled == 0) { + _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func, + _mesa_lookup_enum_by_nr(d->pname)); + return GL_FALSE; + } + + return GL_TRUE; +} + +static const struct value_desc error_value = + { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA }; + +/** + * Find the struct value_desc corresponding to the enum 'pname'. + * + * We hash the enum value to get an index into the 'table' array, + * which holds the index in the 'values' array of struct value_desc. + * Once we've found the entry, we do the extra checks, if any, then + * look up the value and return a pointer to it. + * + * If the value has to be computed (for example, it's the result of a + * function call or we need to add 1 to it), we use the tmp 'v' to + * store the result. + * + * \param func name of glGet*v() func for error reporting + * \param pname the enum value we're looking up + * \param p is were we return the pointer to the value + * \param v a tmp union value variable in the calling glGet*v() function + * + * \return the struct value_desc corresponding to the enum or a struct + * value_desc of TYPE_INVALID if not found. This lets the calling + * glGet*v() function jump right into a switch statement and + * handle errors there instead of having to check for NULL. + */ +static const struct value_desc * +find_value(const char *func, GLenum pname, void **p, union value *v) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_texture_unit *unit; + int mask, hash; + const struct value_desc *d; + + mask = Elements(table) - 1; + hash = (pname * prime_factor); + while (1) { + d = &values[table[hash & mask]]; + + /* If the enum isn't valid, the hash walk ends with index 0, + * which is the API mask entry at the beginning of values[]. */ + if (unlikely(d->type == TYPE_API_MASK)) { + _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func, + _mesa_lookup_enum_by_nr(pname)); + return &error_value; + } + + if (likely(d->pname == pname)) + break; + + hash += prime_step; + } + + if (unlikely(d->extra && !check_extra(ctx, func, d))) + return &error_value; + + switch (d->location) { + case LOC_BUFFER: + *p = ((char *) ctx->DrawBuffer + d->offset); + return d; + case LOC_CONTEXT: + *p = ((char *) ctx + d->offset); + return d; + case LOC_ARRAY: + *p = ((char *) ctx->Array.ArrayObj + d->offset); + return d; + case LOC_TEXUNIT: + unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; + *p = ((char *) unit + d->offset); + return d; + case LOC_CUSTOM: + find_custom_value(ctx, d, v); + *p = v; + return d; + default: + assert(0); + break; + } + + /* silence warning */ + return &error_value; +} + +static const int transpose[] = { + 0, 4, 8, 12, + 1, 5, 9, 13, + 2, 6, 10, 14, + 3, 7, 11, 15 +}; + +void GLAPIENTRY +_mesa_GetBooleanv(GLenum pname, GLboolean *params) +{ + const struct value_desc *d; + union value v; + GLmatrix *m; + int shift, i; + void *p; + + d = find_value("glGetBooleanv", pname, &p, &v); + switch (d->type) { + case TYPE_INVALID: + break; + case TYPE_CONST: + params[0] = INT_TO_BOOLEAN(d->offset); + break; + + case TYPE_FLOAT_4: + case TYPE_FLOATN_4: + params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]); + case TYPE_FLOAT_3: + case TYPE_FLOATN_3: + params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]); + case TYPE_FLOAT_2: + case TYPE_FLOATN_2: + params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]); + case TYPE_FLOAT: + case TYPE_FLOATN: + params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]); + break; + + case TYPE_DOUBLEN: + params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]); + break; + + case TYPE_INT_4: + params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]); + case TYPE_INT_3: + params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]); + case TYPE_INT_2: + case TYPE_ENUM_2: + params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]); + case TYPE_INT: + case TYPE_ENUM: + params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]); + break; + + case TYPE_INT_N: + for (i = 0; i < v.value_int_n.n; i++) + params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]); + break; + + case TYPE_INT64: + params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]); + break; + + case TYPE_BOOLEAN: + params[0] = ((GLboolean*) p)[0]; + break; + + case TYPE_MATRIX: + m = *(GLmatrix **) p; + for (i = 0; i < 16; i++) + params[i] = FLOAT_TO_BOOLEAN(m->m[i]); + break; + + case TYPE_MATRIX_T: + m = *(GLmatrix **) p; + for (i = 0; i < 16; i++) + params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]); + break; + + case TYPE_BIT_0: + case TYPE_BIT_1: + case TYPE_BIT_2: + case TYPE_BIT_3: + case TYPE_BIT_4: + case TYPE_BIT_5: + shift = d->type - TYPE_BIT_0; + params[0] = (*(GLbitfield *) p >> shift) & 1; + break; + } +} + +void GLAPIENTRY +_mesa_GetFloatv(GLenum pname, GLfloat *params) +{ + const struct value_desc *d; + union value v; + GLmatrix *m; + int shift, i; + void *p; + + d = find_value("glGetFloatv", pname, &p, &v); + switch (d->type) { + case TYPE_INVALID: + break; + case TYPE_CONST: + params[0] = (GLfloat) d->offset; + break; + + case TYPE_FLOAT_4: + case TYPE_FLOATN_4: + params[3] = ((GLfloat *) p)[3]; + case TYPE_FLOAT_3: + case TYPE_FLOATN_3: + params[2] = ((GLfloat *) p)[2]; + case TYPE_FLOAT_2: + case TYPE_FLOATN_2: + params[1] = ((GLfloat *) p)[1]; + case TYPE_FLOAT: + case TYPE_FLOATN: + params[0] = ((GLfloat *) p)[0]; + break; + + case TYPE_DOUBLEN: + params[0] = ((GLdouble *) p)[0]; + break; + + case TYPE_INT_4: + params[3] = (GLfloat) (((GLint *) p)[3]); + case TYPE_INT_3: + params[2] = (GLfloat) (((GLint *) p)[2]); + case TYPE_INT_2: + case TYPE_ENUM_2: + params[1] = (GLfloat) (((GLint *) p)[1]); + case TYPE_INT: + case TYPE_ENUM: + params[0] = (GLfloat) (((GLint *) p)[0]); + break; + + case TYPE_INT_N: + for (i = 0; i < v.value_int_n.n; i++) + params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]); + break; + + case TYPE_INT64: + params[0] = ((GLint64 *) p)[0]; + break; + + case TYPE_BOOLEAN: + params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p); + break; + + case TYPE_MATRIX: + m = *(GLmatrix **) p; + for (i = 0; i < 16; i++) + params[i] = m->m[i]; + break; + + case TYPE_MATRIX_T: + m = *(GLmatrix **) p; + for (i = 0; i < 16; i++) + params[i] = m->m[transpose[i]]; + break; + + case TYPE_BIT_0: + case TYPE_BIT_1: + case TYPE_BIT_2: + case TYPE_BIT_3: + case TYPE_BIT_4: + case TYPE_BIT_5: + shift = d->type - TYPE_BIT_0; + params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1); + break; + } +} + +void GLAPIENTRY +_mesa_GetIntegerv(GLenum pname, GLint *params) +{ + const struct value_desc *d; + union value v; + GLmatrix *m; + int shift, i; + void *p; + + d = find_value("glGetIntegerv", pname, &p, &v); + switch (d->type) { + case TYPE_INVALID: + break; + case TYPE_CONST: + params[0] = d->offset; + break; + + case TYPE_FLOAT_4: + params[3] = IROUND(((GLfloat *) p)[3]); + case TYPE_FLOAT_3: + params[2] = IROUND(((GLfloat *) p)[2]); + case TYPE_FLOAT_2: + params[1] = IROUND(((GLfloat *) p)[1]); + case TYPE_FLOAT: + params[0] = IROUND(((GLfloat *) p)[0]); + break; + + case TYPE_FLOATN_4: + params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]); + case TYPE_FLOATN_3: + params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]); + case TYPE_FLOATN_2: + params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]); + case TYPE_FLOATN: + params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]); + break; + + case TYPE_DOUBLEN: + params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]); + break; + + case TYPE_INT_4: + params[3] = ((GLint *) p)[3]; + case TYPE_INT_3: + params[2] = ((GLint *) p)[2]; + case TYPE_INT_2: + case TYPE_ENUM_2: + params[1] = ((GLint *) p)[1]; + case TYPE_INT: + case TYPE_ENUM: + params[0] = ((GLint *) p)[0]; + break; + + case TYPE_INT_N: + for (i = 0; i < v.value_int_n.n; i++) + params[i] = v.value_int_n.ints[i]; + break; + + case TYPE_INT64: + params[0] = INT64_TO_INT(((GLint64 *) p)[0]); + break; + + case TYPE_BOOLEAN: + params[0] = BOOLEAN_TO_INT(*(GLboolean*) p); + break; + + case TYPE_MATRIX: + m = *(GLmatrix **) p; + for (i = 0; i < 16; i++) + params[i] = FLOAT_TO_INT(m->m[i]); + break; + + case TYPE_MATRIX_T: + m = *(GLmatrix **) p; + for (i = 0; i < 16; i++) + params[i] = FLOAT_TO_INT(m->m[transpose[i]]); + break; + + case TYPE_BIT_0: + case TYPE_BIT_1: + case TYPE_BIT_2: + case TYPE_BIT_3: + case TYPE_BIT_4: + case TYPE_BIT_5: + shift = d->type - TYPE_BIT_0; + params[0] = (*(GLbitfield *) p >> shift) & 1; + break; + } +} + +#if FEATURE_ARB_sync +void GLAPIENTRY +_mesa_GetInteger64v(GLenum pname, GLint64 *params) +{ + const struct value_desc *d; + union value v; + GLmatrix *m; + int shift, i; + void *p; + + d = find_value("glGetInteger64v", pname, &p, &v); + switch (d->type) { + case TYPE_INVALID: + break; + case TYPE_CONST: + params[0] = d->offset; + break; + + case TYPE_FLOAT_4: + params[3] = IROUND64(((GLfloat *) p)[3]); + case TYPE_FLOAT_3: + params[2] = IROUND64(((GLfloat *) p)[2]); + case TYPE_FLOAT_2: + params[1] = IROUND64(((GLfloat *) p)[1]); + case TYPE_FLOAT: + params[0] = IROUND64(((GLfloat *) p)[0]); + break; + + case TYPE_FLOATN_4: + params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]); + case TYPE_FLOATN_3: + params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]); + case TYPE_FLOATN_2: + params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]); + case TYPE_FLOATN: + params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]); + break; + + case TYPE_DOUBLEN: + params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]); + break; + + case TYPE_INT_4: + params[3] = ((GLint *) p)[3]; + case TYPE_INT_3: + params[2] = ((GLint *) p)[2]; + case TYPE_INT_2: + case TYPE_ENUM_2: + params[1] = ((GLint *) p)[1]; + case TYPE_INT: + case TYPE_ENUM: + params[0] = ((GLint *) p)[0]; + break; + + case TYPE_INT_N: + for (i = 0; i < v.value_int_n.n; i++) + params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]); + break; + + case TYPE_INT64: + params[0] = ((GLint64 *) p)[0]; + break; + + case TYPE_BOOLEAN: + params[0] = ((GLboolean*) p)[0]; + break; + + case TYPE_MATRIX: + m = *(GLmatrix **) p; + for (i = 0; i < 16; i++) + params[i] = FLOAT_TO_INT64(m->m[i]); + break; + + case TYPE_MATRIX_T: + m = *(GLmatrix **) p; + for (i = 0; i < 16; i++) + params[i] = FLOAT_TO_INT64(m->m[transpose[i]]); + break; + + case TYPE_BIT_0: + case TYPE_BIT_1: + case TYPE_BIT_2: + case TYPE_BIT_3: + case TYPE_BIT_4: + case TYPE_BIT_5: + shift = d->type - TYPE_BIT_0; + params[0] = (*(GLbitfield *) p >> shift) & 1; + break; + } +} +#endif /* FEATURE_ARB_sync */ + +void GLAPIENTRY +_mesa_GetDoublev(GLenum pname, GLdouble *params) +{ + const struct value_desc *d; + union value v; + GLmatrix *m; + int shift, i; + void *p; + + d = find_value("glGetDoublev", pname, &p, &v); + switch (d->type) { + case TYPE_INVALID: + break; + case TYPE_CONST: + params[0] = d->offset; + break; + + case TYPE_FLOAT_4: + case TYPE_FLOATN_4: + params[3] = ((GLfloat *) p)[3]; + case TYPE_FLOAT_3: + case TYPE_FLOATN_3: + params[2] = ((GLfloat *) p)[2]; + case TYPE_FLOAT_2: + case TYPE_FLOATN_2: + params[1] = ((GLfloat *) p)[1]; + case TYPE_FLOAT: + case TYPE_FLOATN: + params[0] = ((GLfloat *) p)[0]; + break; + + case TYPE_DOUBLEN: + params[0] = ((GLdouble *) p)[0]; + break; + + case TYPE_INT_4: + params[3] = ((GLint *) p)[3]; + case TYPE_INT_3: + params[2] = ((GLint *) p)[2]; + case TYPE_INT_2: + case TYPE_ENUM_2: + params[1] = ((GLint *) p)[1]; + case TYPE_INT: + case TYPE_ENUM: + params[0] = ((GLint *) p)[0]; + break; + + case TYPE_INT_N: + for (i = 0; i < v.value_int_n.n; i++) + params[i] = v.value_int_n.ints[i]; + break; + + case TYPE_INT64: + params[0] = ((GLint64 *) p)[0]; + break; + + case TYPE_BOOLEAN: + params[0] = *(GLboolean*) p; + break; + + case TYPE_MATRIX: + m = *(GLmatrix **) p; + for (i = 0; i < 16; i++) + params[i] = m->m[i]; + break; + + case TYPE_MATRIX_T: + m = *(GLmatrix **) p; + for (i = 0; i < 16; i++) + params[i] = m->m[transpose[i]]; + break; + + case TYPE_BIT_0: + case TYPE_BIT_1: + case TYPE_BIT_2: + case TYPE_BIT_3: + case TYPE_BIT_4: + case TYPE_BIT_5: + shift = d->type - TYPE_BIT_0; + params[0] = (*(GLbitfield *) p >> shift) & 1; + break; + } +} + +static enum value_type +find_value_indexed(const char *func, GLenum pname, int index, union value *v) +{ + GET_CURRENT_CONTEXT(ctx); + + switch (pname) { + + case GL_BLEND: + if (index >= ctx->Const.MaxDrawBuffers) + goto invalid_value; + if (!ctx->Extensions.EXT_draw_buffers2) + goto invalid_enum; + v->value_int = (ctx->Color.BlendEnabled >> index) & 1; + return TYPE_INT; + + case GL_BLEND_SRC: + /* fall-through */ + case GL_BLEND_SRC_RGB: + if (index >= ctx->Const.MaxDrawBuffers) + goto invalid_value; + if (!ctx->Extensions.ARB_draw_buffers_blend) + goto invalid_enum; + v->value_int = ctx->Color.Blend[index].SrcRGB; + return TYPE_INT; + case GL_BLEND_SRC_ALPHA: + if (index >= ctx->Const.MaxDrawBuffers) + goto invalid_value; + if (!ctx->Extensions.ARB_draw_buffers_blend) + goto invalid_enum; + v->value_int = ctx->Color.Blend[index].SrcA; + return TYPE_INT; + case GL_BLEND_DST: + /* fall-through */ + case GL_BLEND_DST_RGB: + if (index >= ctx->Const.MaxDrawBuffers) + goto invalid_value; + if (!ctx->Extensions.ARB_draw_buffers_blend) + goto invalid_enum; + v->value_int = ctx->Color.Blend[index].DstRGB; + return TYPE_INT; + case GL_BLEND_DST_ALPHA: + if (index >= ctx->Const.MaxDrawBuffers) + goto invalid_value; + if (!ctx->Extensions.ARB_draw_buffers_blend) + goto invalid_enum; + v->value_int = ctx->Color.Blend[index].DstA; + return TYPE_INT; + case GL_BLEND_EQUATION_RGB: + if (index >= ctx->Const.MaxDrawBuffers) + goto invalid_value; + if (!ctx->Extensions.ARB_draw_buffers_blend) + goto invalid_enum; + v->value_int = ctx->Color.Blend[index].EquationRGB; + return TYPE_INT; + case GL_BLEND_EQUATION_ALPHA: + if (index >= ctx->Const.MaxDrawBuffers) + goto invalid_value; + if (!ctx->Extensions.ARB_draw_buffers_blend) + goto invalid_enum; + v->value_int = ctx->Color.Blend[index].EquationA; + return TYPE_INT; + + case GL_COLOR_WRITEMASK: + if (index >= ctx->Const.MaxDrawBuffers) + goto invalid_value; + if (!ctx->Extensions.EXT_draw_buffers2) + goto invalid_enum; + v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0; + v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0; + v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0; + v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0; + return TYPE_INT_4; + + case GL_TRANSFORM_FEEDBACK_BUFFER_START: + if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs) + goto invalid_value; + if (!ctx->Extensions.EXT_transform_feedback) + goto invalid_enum; + v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index]; + return TYPE_INT64; + + case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE: + if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs) + goto invalid_value; + if (!ctx->Extensions.EXT_transform_feedback) + goto invalid_enum; + v->value_int64 = ctx->TransformFeedback.CurrentObject->Size[index]; + return TYPE_INT64; + + case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING: + if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs) + goto invalid_value; + if (!ctx->Extensions.EXT_transform_feedback) + goto invalid_enum; + v->value_int = ctx->TransformFeedback.CurrentObject->Buffers[index]->Name; + return TYPE_INT; + } + + invalid_enum: + _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func, + _mesa_lookup_enum_by_nr(pname)); + return TYPE_INVALID; + invalid_value: + _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func, + _mesa_lookup_enum_by_nr(pname)); + return TYPE_INVALID; +} + +void GLAPIENTRY +_mesa_GetBooleanIndexedv( GLenum pname, GLuint index, GLboolean *params ) +{ + union value v; + enum value_type type = + find_value_indexed("glGetBooleanIndexedv", pname, index, &v); + + switch (type) { + case TYPE_INT: + params[0] = INT_TO_BOOLEAN(v.value_int); + break; + case TYPE_INT_4: + params[0] = INT_TO_BOOLEAN(v.value_int_4[0]); + params[1] = INT_TO_BOOLEAN(v.value_int_4[1]); + params[2] = INT_TO_BOOLEAN(v.value_int_4[2]); + params[3] = INT_TO_BOOLEAN(v.value_int_4[3]); + break; + case TYPE_INT64: + params[0] = INT64_TO_BOOLEAN(v.value_int); + break; + default: + ; /* nothing - GL error was recorded */ + } +} + +void GLAPIENTRY +_mesa_GetIntegerIndexedv( GLenum pname, GLuint index, GLint *params ) +{ + union value v; + enum value_type type = + find_value_indexed("glGetIntegerIndexedv", pname, index, &v); + + switch (type) { + case TYPE_INT: + params[0] = v.value_int; + break; + case TYPE_INT_4: + params[0] = v.value_int_4[0]; + params[1] = v.value_int_4[1]; + params[2] = v.value_int_4[2]; + params[3] = v.value_int_4[3]; + break; + case TYPE_INT64: + params[0] = INT64_TO_INT(v.value_int); + break; + default: + ; /* nothing - GL error was recorded */ + } +} + +#if FEATURE_ARB_sync +void GLAPIENTRY +_mesa_GetInteger64Indexedv( GLenum pname, GLuint index, GLint64 *params ) +{ + union value v; + enum value_type type = + find_value_indexed("glGetIntegerIndexedv", pname, index, &v); + + switch (type) { + case TYPE_INT: + params[0] = v.value_int; + break; + case TYPE_INT_4: + params[0] = v.value_int_4[0]; + params[1] = v.value_int_4[1]; + params[2] = v.value_int_4[2]; + params[3] = v.value_int_4[3]; + break; + case TYPE_INT64: + params[0] = v.value_int; + break; + default: + ; /* nothing - GL error was recorded */ + } +} +#endif /* FEATURE_ARB_sync */ + +#if FEATURE_ES1 +void GLAPIENTRY +_mesa_GetFixedv(GLenum pname, GLfixed *params) +{ + const struct value_desc *d; + union value v; + GLmatrix *m; + int shift, i; + void *p; + + d = find_value("glGetDoublev", pname, &p, &v); + switch (d->type) { + case TYPE_INVALID: + break; + case TYPE_CONST: + params[0] = INT_TO_FIXED(d->offset); + break; + + case TYPE_FLOAT_4: + case TYPE_FLOATN_4: + params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]); + case TYPE_FLOAT_3: + case TYPE_FLOATN_3: + params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]); + case TYPE_FLOAT_2: + case TYPE_FLOATN_2: + params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]); + case TYPE_FLOAT: + case TYPE_FLOATN: + params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]); + break; + + case TYPE_DOUBLEN: + params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]); + break; + + case TYPE_INT_4: + params[3] = INT_TO_FIXED(((GLint *) p)[3]); + case TYPE_INT_3: + params[2] = INT_TO_FIXED(((GLint *) p)[2]); + case TYPE_INT_2: + case TYPE_ENUM_2: + params[1] = INT_TO_FIXED(((GLint *) p)[1]); + case TYPE_INT: + case TYPE_ENUM: + params[0] = INT_TO_FIXED(((GLint *) p)[0]); + break; + + case TYPE_INT_N: + for (i = 0; i < v.value_int_n.n; i++) + params[i] = INT_TO_FIXED(v.value_int_n.ints[i]); + break; + + case TYPE_INT64: + params[0] = ((GLint64 *) p)[0]; + break; + + case TYPE_BOOLEAN: + params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]); + break; + + case TYPE_MATRIX: + m = *(GLmatrix **) p; + for (i = 0; i < 16; i++) + params[i] = FLOAT_TO_FIXED(m->m[i]); + break; + + case TYPE_MATRIX_T: + m = *(GLmatrix **) p; + for (i = 0; i < 16; i++) + params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]); + break; + + case TYPE_BIT_0: + case TYPE_BIT_1: + case TYPE_BIT_2: + case TYPE_BIT_3: + case TYPE_BIT_4: + case TYPE_BIT_5: + shift = d->type - TYPE_BIT_0; + params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1); + break; + } +} +#endif diff --git a/mesalib/src/mesa/main/mtypes.h b/mesalib/src/mesa/main/mtypes.h index 695d93652..520d96689 100644 --- a/mesalib/src/mesa/main/mtypes.h +++ b/mesalib/src/mesa/main/mtypes.h @@ -1,3360 +1,3362 @@ -/* - * Mesa 3-D graphics library - * Version: 7.7 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (C) 2009 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/** - * \file mtypes.h - * Main Mesa data structures. - * - * Please try to mark derived values with a leading underscore ('_'). - */ - -#ifndef MTYPES_H -#define MTYPES_H - - -#include "main/glheader.h" -#include "main/config.h" -#include "main/mfeatures.h" -#include "glapi/glapi.h" -#include "math/m_matrix.h" /* GLmatrix */ -#include "main/simple_list.h" /* struct simple_node */ -#include "main/formats.h" /* MESA_FORMAT_COUNT */ - - -/** - * Color channel data type. - */ -#if CHAN_BITS == 8 - typedef GLubyte GLchan; -#define CHAN_MAX 255 -#define CHAN_MAXF 255.0F -#define CHAN_TYPE GL_UNSIGNED_BYTE -#elif CHAN_BITS == 16 - typedef GLushort GLchan; -#define CHAN_MAX 65535 -#define CHAN_MAXF 65535.0F -#define CHAN_TYPE GL_UNSIGNED_SHORT -#elif CHAN_BITS == 32 - typedef GLfloat GLchan; -#define CHAN_MAX 1.0 -#define CHAN_MAXF 1.0F -#define CHAN_TYPE GL_FLOAT -#else -#error "illegal number of color channel bits" -#endif - - -/** - * Stencil buffer data type. - */ -#if STENCIL_BITS==8 - typedef GLubyte GLstencil; -#elif STENCIL_BITS==16 - typedef GLushort GLstencil; -#else -# error "illegal number of stencil bits" -#endif - - -/** - * \name 64-bit extension of GLbitfield. - */ -/*@{*/ -typedef GLuint64 GLbitfield64; - -/** Set a single bit */ -#define BITFIELD64_BIT(b) (1ULL << (b)) - - -/** - * \name Some forward type declarations - */ -/*@{*/ -struct _mesa_HashTable; -struct gl_attrib_node; -struct gl_list_extensions; -struct gl_meta_state; -struct gl_pixelstore_attrib; -struct gl_program_cache; -struct gl_texture_format; -struct gl_texture_image; -struct gl_texture_object; -struct gl_context; -struct st_context; -/*@}*/ - - -/** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */ -#define PRIM_OUTSIDE_BEGIN_END (GL_POLYGON+1) -#define PRIM_INSIDE_UNKNOWN_PRIM (GL_POLYGON+2) -#define PRIM_UNKNOWN (GL_POLYGON+3) - - -/** - * Shader stages. Note that these will become 5 with tessellation. - * These MUST have the same values as gallium's PIPE_SHADER_* - */ -typedef enum -{ - MESA_SHADER_VERTEX = 0, - MESA_SHADER_FRAGMENT = 1, - MESA_SHADER_GEOMETRY = 2, - MESA_SHADER_TYPES = 3 -} gl_shader_type; - - - -/** - * Indexes for vertex program attributes. - * GL_NV_vertex_program aliases generic attributes over the conventional - * attributes. In GL_ARB_vertex_program shader the aliasing is optional. - * In GL_ARB_vertex_shader / OpenGL 2.0 the aliasing is disallowed (the - * generic attributes are distinct/separate). - */ -typedef enum -{ - VERT_ATTRIB_POS = 0, - VERT_ATTRIB_WEIGHT = 1, - VERT_ATTRIB_NORMAL = 2, - VERT_ATTRIB_COLOR0 = 3, - VERT_ATTRIB_COLOR1 = 4, - VERT_ATTRIB_FOG = 5, - VERT_ATTRIB_COLOR_INDEX = 6, - VERT_ATTRIB_POINT_SIZE = 6, /*alias*/ - VERT_ATTRIB_EDGEFLAG = 7, - VERT_ATTRIB_TEX0 = 8, - VERT_ATTRIB_TEX1 = 9, - VERT_ATTRIB_TEX2 = 10, - VERT_ATTRIB_TEX3 = 11, - VERT_ATTRIB_TEX4 = 12, - VERT_ATTRIB_TEX5 = 13, - VERT_ATTRIB_TEX6 = 14, - VERT_ATTRIB_TEX7 = 15, - VERT_ATTRIB_GENERIC0 = 16, - VERT_ATTRIB_GENERIC1 = 17, - VERT_ATTRIB_GENERIC2 = 18, - VERT_ATTRIB_GENERIC3 = 19, - VERT_ATTRIB_GENERIC4 = 20, - VERT_ATTRIB_GENERIC5 = 21, - VERT_ATTRIB_GENERIC6 = 22, - VERT_ATTRIB_GENERIC7 = 23, - VERT_ATTRIB_GENERIC8 = 24, - VERT_ATTRIB_GENERIC9 = 25, - VERT_ATTRIB_GENERIC10 = 26, - VERT_ATTRIB_GENERIC11 = 27, - VERT_ATTRIB_GENERIC12 = 28, - VERT_ATTRIB_GENERIC13 = 29, - VERT_ATTRIB_GENERIC14 = 30, - VERT_ATTRIB_GENERIC15 = 31, - VERT_ATTRIB_MAX = 32 -} gl_vert_attrib; - -/** - * Bitflags for vertex attributes. - * These are used in bitfields in many places. - */ -/*@{*/ -#define VERT_BIT_POS (1 << VERT_ATTRIB_POS) -#define VERT_BIT_WEIGHT (1 << VERT_ATTRIB_WEIGHT) -#define VERT_BIT_NORMAL (1 << VERT_ATTRIB_NORMAL) -#define VERT_BIT_COLOR0 (1 << VERT_ATTRIB_COLOR0) -#define VERT_BIT_COLOR1 (1 << VERT_ATTRIB_COLOR1) -#define VERT_BIT_FOG (1 << VERT_ATTRIB_FOG) -#define VERT_BIT_COLOR_INDEX (1 << VERT_ATTRIB_COLOR_INDEX) -#define VERT_BIT_EDGEFLAG (1 << VERT_ATTRIB_EDGEFLAG) -#define VERT_BIT_TEX0 (1 << VERT_ATTRIB_TEX0) -#define VERT_BIT_TEX1 (1 << VERT_ATTRIB_TEX1) -#define VERT_BIT_TEX2 (1 << VERT_ATTRIB_TEX2) -#define VERT_BIT_TEX3 (1 << VERT_ATTRIB_TEX3) -#define VERT_BIT_TEX4 (1 << VERT_ATTRIB_TEX4) -#define VERT_BIT_TEX5 (1 << VERT_ATTRIB_TEX5) -#define VERT_BIT_TEX6 (1 << VERT_ATTRIB_TEX6) -#define VERT_BIT_TEX7 (1 << VERT_ATTRIB_TEX7) -#define VERT_BIT_GENERIC0 (1 << VERT_ATTRIB_GENERIC0) -#define VERT_BIT_GENERIC1 (1 << VERT_ATTRIB_GENERIC1) -#define VERT_BIT_GENERIC2 (1 << VERT_ATTRIB_GENERIC2) -#define VERT_BIT_GENERIC3 (1 << VERT_ATTRIB_GENERIC3) -#define VERT_BIT_GENERIC4 (1 << VERT_ATTRIB_GENERIC4) -#define VERT_BIT_GENERIC5 (1 << VERT_ATTRIB_GENERIC5) -#define VERT_BIT_GENERIC6 (1 << VERT_ATTRIB_GENERIC6) -#define VERT_BIT_GENERIC7 (1 << VERT_ATTRIB_GENERIC7) -#define VERT_BIT_GENERIC8 (1 << VERT_ATTRIB_GENERIC8) -#define VERT_BIT_GENERIC9 (1 << VERT_ATTRIB_GENERIC9) -#define VERT_BIT_GENERIC10 (1 << VERT_ATTRIB_GENERIC10) -#define VERT_BIT_GENERIC11 (1 << VERT_ATTRIB_GENERIC11) -#define VERT_BIT_GENERIC12 (1 << VERT_ATTRIB_GENERIC12) -#define VERT_BIT_GENERIC13 (1 << VERT_ATTRIB_GENERIC13) -#define VERT_BIT_GENERIC14 (1 << VERT_ATTRIB_GENERIC14) -#define VERT_BIT_GENERIC15 (1 << VERT_ATTRIB_GENERIC15) - -#define VERT_BIT_TEX(u) (1 << (VERT_ATTRIB_TEX0 + (u))) -#define VERT_BIT_GENERIC(g) (1 << (VERT_ATTRIB_GENERIC0 + (g))) -/*@}*/ - - -/** - * Indexes for vertex program result attributes - */ -typedef enum -{ - VERT_RESULT_HPOS = 0, - VERT_RESULT_COL0 = 1, - VERT_RESULT_COL1 = 2, - VERT_RESULT_FOGC = 3, - VERT_RESULT_TEX0 = 4, - VERT_RESULT_TEX1 = 5, - VERT_RESULT_TEX2 = 6, - VERT_RESULT_TEX3 = 7, - VERT_RESULT_TEX4 = 8, - VERT_RESULT_TEX5 = 9, - VERT_RESULT_TEX6 = 10, - VERT_RESULT_TEX7 = 11, - VERT_RESULT_PSIZ = 12, - VERT_RESULT_BFC0 = 13, - VERT_RESULT_BFC1 = 14, - VERT_RESULT_EDGE = 15, - VERT_RESULT_VAR0 = 16, /**< shader varying */ - VERT_RESULT_MAX = (VERT_RESULT_VAR0 + MAX_VARYING) -} gl_vert_result; - - -/*********************************************/ - -/** - * Indexes for geometry program attributes. - */ -typedef enum -{ - GEOM_ATTRIB_POSITION = 0, - GEOM_ATTRIB_COLOR0 = 1, - GEOM_ATTRIB_COLOR1 = 2, - GEOM_ATTRIB_SECONDARY_COLOR0 = 3, - GEOM_ATTRIB_SECONDARY_COLOR1 = 4, - GEOM_ATTRIB_FOG_FRAG_COORD = 5, - GEOM_ATTRIB_POINT_SIZE = 6, - GEOM_ATTRIB_CLIP_VERTEX = 7, - GEOM_ATTRIB_PRIMITIVE_ID = 8, - GEOM_ATTRIB_TEX_COORD = 9, - - GEOM_ATTRIB_VAR0 = 16, - GEOM_ATTRIB_MAX = (GEOM_ATTRIB_VAR0 + MAX_VARYING) -} gl_geom_attrib; - -/** - * Bitflags for geometry attributes. - * These are used in bitfields in many places. - */ -/*@{*/ -#define GEOM_BIT_COLOR0 (1 << GEOM_ATTRIB_COLOR0) -#define GEOM_BIT_COLOR1 (1 << GEOM_ATTRIB_COLOR1) -#define GEOM_BIT_SCOLOR0 (1 << GEOM_ATTRIB_SECONDARY_COLOR0) -#define GEOM_BIT_SCOLOR1 (1 << GEOM_ATTRIB_SECONDARY_COLOR1) -#define GEOM_BIT_TEX_COORD (1 << GEOM_ATTRIB_TEX_COORD) -#define GEOM_BIT_FOG_COORD (1 << GEOM_ATTRIB_FOG_FRAG_COORD) -#define GEOM_BIT_POSITION (1 << GEOM_ATTRIB_POSITION) -#define GEOM_BIT_POINT_SIDE (1 << GEOM_ATTRIB_POINT_SIZE) -#define GEOM_BIT_CLIP_VERTEX (1 << GEOM_ATTRIB_CLIP_VERTEX) -#define GEOM_BIT_PRIM_ID (1 << GEOM_ATTRIB_PRIMITIVE_ID) -#define GEOM_BIT_VAR0 (1 << GEOM_ATTRIB_VAR0) - -#define GEOM_BIT_VAR(g) (1 << (GEOM_BIT_VAR0 + (g))) -/*@}*/ - - -/** - * Indexes for geometry program result attributes - */ -typedef enum -{ - GEOM_RESULT_POS = 0, - GEOM_RESULT_COL0 = 1, - GEOM_RESULT_COL1 = 2, - GEOM_RESULT_SCOL0 = 3, - GEOM_RESULT_SCOL1 = 4, - GEOM_RESULT_FOGC = 5, - GEOM_RESULT_TEX0 = 6, - GEOM_RESULT_TEX1 = 7, - GEOM_RESULT_TEX2 = 8, - GEOM_RESULT_TEX3 = 9, - GEOM_RESULT_TEX4 = 10, - GEOM_RESULT_TEX5 = 11, - GEOM_RESULT_TEX6 = 12, - GEOM_RESULT_TEX7 = 13, - GEOM_RESULT_PSIZ = 14, - GEOM_RESULT_CLPV = 15, - GEOM_RESULT_PRID = 16, - GEOM_RESULT_LAYR = 17, - GEOM_RESULT_VAR0 = 18, /**< shader varying, should really be 16 */ - /* ### we need to -2 because var0 is 18 instead 16 like in the others */ - GEOM_RESULT_MAX = (GEOM_RESULT_VAR0 + MAX_VARYING - 2) -} gl_geom_result; - - -/** - * Indexes for fragment program input attributes. - */ -typedef enum -{ - FRAG_ATTRIB_WPOS = 0, - FRAG_ATTRIB_COL0 = 1, - FRAG_ATTRIB_COL1 = 2, - FRAG_ATTRIB_FOGC = 3, - FRAG_ATTRIB_TEX0 = 4, - FRAG_ATTRIB_TEX1 = 5, - FRAG_ATTRIB_TEX2 = 6, - FRAG_ATTRIB_TEX3 = 7, - FRAG_ATTRIB_TEX4 = 8, - FRAG_ATTRIB_TEX5 = 9, - FRAG_ATTRIB_TEX6 = 10, - FRAG_ATTRIB_TEX7 = 11, - FRAG_ATTRIB_FACE = 12, /**< front/back face */ - FRAG_ATTRIB_PNTC = 13, /**< sprite/point coord */ - FRAG_ATTRIB_VAR0 = 14, /**< shader varying */ - FRAG_ATTRIB_MAX = (FRAG_ATTRIB_VAR0 + MAX_VARYING) -} gl_frag_attrib; - -/** - * Bitflags for fragment program input attributes. - */ -/*@{*/ -#define FRAG_BIT_WPOS (1 << FRAG_ATTRIB_WPOS) -#define FRAG_BIT_COL0 (1 << FRAG_ATTRIB_COL0) -#define FRAG_BIT_COL1 (1 << FRAG_ATTRIB_COL1) -#define FRAG_BIT_FOGC (1 << FRAG_ATTRIB_FOGC) -#define FRAG_BIT_FACE (1 << FRAG_ATTRIB_FACE) -#define FRAG_BIT_PNTC (1 << FRAG_ATTRIB_PNTC) -#define FRAG_BIT_TEX0 (1 << FRAG_ATTRIB_TEX0) -#define FRAG_BIT_TEX1 (1 << FRAG_ATTRIB_TEX1) -#define FRAG_BIT_TEX2 (1 << FRAG_ATTRIB_TEX2) -#define FRAG_BIT_TEX3 (1 << FRAG_ATTRIB_TEX3) -#define FRAG_BIT_TEX4 (1 << FRAG_ATTRIB_TEX4) -#define FRAG_BIT_TEX5 (1 << FRAG_ATTRIB_TEX5) -#define FRAG_BIT_TEX6 (1 << FRAG_ATTRIB_TEX6) -#define FRAG_BIT_TEX7 (1 << FRAG_ATTRIB_TEX7) -#define FRAG_BIT_VAR0 (1 << FRAG_ATTRIB_VAR0) - -#define FRAG_BIT_TEX(U) (FRAG_BIT_TEX0 << (U)) -#define FRAG_BIT_VAR(V) (FRAG_BIT_VAR0 << (V)) - -#define FRAG_BITS_TEX_ANY (FRAG_BIT_TEX0| \ - FRAG_BIT_TEX1| \ - FRAG_BIT_TEX2| \ - FRAG_BIT_TEX3| \ - FRAG_BIT_TEX4| \ - FRAG_BIT_TEX5| \ - FRAG_BIT_TEX6| \ - FRAG_BIT_TEX7) -/*@}*/ - - -/** - * Fragment program results - */ -typedef enum -{ - FRAG_RESULT_DEPTH = 0, - FRAG_RESULT_STENCIL = 1, - FRAG_RESULT_COLOR = 2, - FRAG_RESULT_DATA0 = 3, - FRAG_RESULT_MAX = (FRAG_RESULT_DATA0 + MAX_DRAW_BUFFERS) -} gl_frag_result; - - -/** - * Indexes for all renderbuffers - */ -typedef enum -{ - /* the four standard color buffers */ - BUFFER_FRONT_LEFT, - BUFFER_BACK_LEFT, - BUFFER_FRONT_RIGHT, - BUFFER_BACK_RIGHT, - BUFFER_DEPTH, - BUFFER_STENCIL, - BUFFER_ACCUM, - /* optional aux buffer */ - BUFFER_AUX0, - /* generic renderbuffers */ - BUFFER_COLOR0, - BUFFER_COLOR1, - BUFFER_COLOR2, - BUFFER_COLOR3, - BUFFER_COLOR4, - BUFFER_COLOR5, - BUFFER_COLOR6, - BUFFER_COLOR7, - BUFFER_COUNT -} gl_buffer_index; - -/** - * Bit flags for all renderbuffers - */ -#define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT) -#define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT) -#define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT) -#define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT) -#define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0) -#define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1) -#define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2) -#define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3) -#define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH) -#define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL) -#define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM) -#define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0) -#define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1) -#define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2) -#define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3) -#define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4) -#define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5) -#define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6) -#define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7) - -/** - * Mask of all the color buffer bits (but not accum). - */ -#define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \ - BUFFER_BIT_BACK_LEFT | \ - BUFFER_BIT_FRONT_RIGHT | \ - BUFFER_BIT_BACK_RIGHT | \ - BUFFER_BIT_AUX0 | \ - BUFFER_BIT_COLOR0 | \ - BUFFER_BIT_COLOR1 | \ - BUFFER_BIT_COLOR2 | \ - BUFFER_BIT_COLOR3 | \ - BUFFER_BIT_COLOR4 | \ - BUFFER_BIT_COLOR5 | \ - BUFFER_BIT_COLOR6 | \ - BUFFER_BIT_COLOR7) - - -/** - * Framebuffer configuration (aka visual / pixelformat) - * Note: some of these fields should be boolean, but it appears that - * code in drivers/dri/common/util.c requires int-sized fields. - */ -struct gl_config -{ - GLboolean rgbMode; - GLboolean floatMode; - GLboolean colorIndexMode; /* XXX is this used anywhere? */ - GLuint doubleBufferMode; - GLuint stereoMode; - - GLboolean haveAccumBuffer; - GLboolean haveDepthBuffer; - GLboolean haveStencilBuffer; - - GLint redBits, greenBits, blueBits, alphaBits; /* bits per comp */ - GLuint redMask, greenMask, blueMask, alphaMask; - GLint rgbBits; /* total bits for rgb */ - GLint indexBits; /* total bits for colorindex */ - - GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits; - GLint depthBits; - GLint stencilBits; - - GLint numAuxBuffers; - - GLint level; - - /* EXT_visual_rating / GLX 1.2 */ - GLint visualRating; - - /* EXT_visual_info / GLX 1.2 */ - GLint transparentPixel; - /* colors are floats scaled to ints */ - GLint transparentRed, transparentGreen, transparentBlue, transparentAlpha; - GLint transparentIndex; - - /* ARB_multisample / SGIS_multisample */ - GLint sampleBuffers; - GLint samples; - - /* SGIX_pbuffer / GLX 1.3 */ - GLint maxPbufferWidth; - GLint maxPbufferHeight; - GLint maxPbufferPixels; - GLint optimalPbufferWidth; /* Only for SGIX_pbuffer. */ - GLint optimalPbufferHeight; /* Only for SGIX_pbuffer. */ - - /* OML_swap_method */ - GLint swapMethod; - - /* EXT_texture_from_pixmap */ - GLint bindToTextureRgb; - GLint bindToTextureRgba; - GLint bindToMipmapTexture; - GLint bindToTextureTargets; - GLint yInverted; - - /* EXT_framebuffer_sRGB */ - GLint sRGBCapable; -}; - - -/** - * Data structure for color tables - */ -struct gl_color_table -{ - GLenum InternalFormat; /**< The user-specified format */ - GLenum _BaseFormat; /**< GL_ALPHA, GL_RGBA, GL_RGB, etc */ - GLuint Size; /**< number of entries in table */ - GLfloat *TableF; /**< Color table, floating point values */ - GLubyte *TableUB; /**< Color table, ubyte values */ - GLubyte RedSize; - GLubyte GreenSize; - GLubyte BlueSize; - GLubyte AlphaSize; - GLubyte LuminanceSize; - GLubyte IntensitySize; -}; - - -/** - * \name Bit flags used for updating material values. - */ -/*@{*/ -#define MAT_ATTRIB_FRONT_AMBIENT 0 -#define MAT_ATTRIB_BACK_AMBIENT 1 -#define MAT_ATTRIB_FRONT_DIFFUSE 2 -#define MAT_ATTRIB_BACK_DIFFUSE 3 -#define MAT_ATTRIB_FRONT_SPECULAR 4 -#define MAT_ATTRIB_BACK_SPECULAR 5 -#define MAT_ATTRIB_FRONT_EMISSION 6 -#define MAT_ATTRIB_BACK_EMISSION 7 -#define MAT_ATTRIB_FRONT_SHININESS 8 -#define MAT_ATTRIB_BACK_SHININESS 9 -#define MAT_ATTRIB_FRONT_INDEXES 10 -#define MAT_ATTRIB_BACK_INDEXES 11 -#define MAT_ATTRIB_MAX 12 - -#define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f)) -#define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f)) -#define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f)) -#define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f)) -#define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f)) -#define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f)) - -#define MAT_INDEX_AMBIENT 0 -#define MAT_INDEX_DIFFUSE 1 -#define MAT_INDEX_SPECULAR 2 - -#define MAT_BIT_FRONT_AMBIENT (1< ) */ - GLfloat _NormSpotDirection[4]; /**< normalized spotlight direction */ - GLfloat _VP_inf_spot_attenuation; - - GLfloat _SpotExpTable[EXP_TABLE_SIZE][2]; /**< to replace a pow() call */ - GLfloat _MatAmbient[2][3]; /**< material ambient * light ambient */ - GLfloat _MatDiffuse[2][3]; /**< material diffuse * light diffuse */ - GLfloat _MatSpecular[2][3]; /**< material spec * light specular */ - GLfloat _dli; /**< CI diffuse light intensity */ - GLfloat _sli; /**< CI specular light intensity */ - /*@}*/ -}; - - -/** - * Light model state. - */ -struct gl_lightmodel -{ - GLfloat Ambient[4]; /**< ambient color */ - GLboolean LocalViewer; /**< Local (or infinite) view point? */ - GLboolean TwoSide; /**< Two (or one) sided lighting? */ - GLenum ColorControl; /**< either GL_SINGLE_COLOR - * or GL_SEPARATE_SPECULAR_COLOR */ -}; - - -/** - * Material state. - */ -struct gl_material -{ - GLfloat Attrib[MAT_ATTRIB_MAX][4]; -}; - - -/** - * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT) - */ -struct gl_accum_attrib -{ - GLfloat ClearColor[4]; /**< Accumulation buffer clear color */ -}; - - -/** - * Color buffer attribute group (GL_COLOR_BUFFER_BIT). - */ -struct gl_colorbuffer_attrib -{ - GLuint ClearIndex; /**< Index to use for glClear */ - GLclampf ClearColor[4]; /**< Color to use for glClear */ - - GLuint IndexMask; /**< Color index write mask */ - GLubyte ColorMask[MAX_DRAW_BUFFERS][4];/**< Each flag is 0xff or 0x0 */ - - GLenum DrawBuffer[MAX_DRAW_BUFFERS]; /**< Which buffer to draw into */ - - /** - * \name alpha testing - */ - /*@{*/ - GLboolean AlphaEnabled; /**< Alpha test enabled flag */ - GLenum AlphaFunc; /**< Alpha test function */ - GLclampf AlphaRef; /**< Alpha reference value */ - /*@}*/ - - /** - * \name Blending - */ - /*@{*/ - GLbitfield BlendEnabled; /**< Per-buffer blend enable flags */ - GLfloat BlendColor[4]; /**< Blending color */ - struct - { - GLenum SrcRGB; /**< RGB blend source term */ - GLenum DstRGB; /**< RGB blend dest term */ - GLenum SrcA; /**< Alpha blend source term */ - GLenum DstA; /**< Alpha blend dest term */ - GLenum EquationRGB; /**< GL_ADD, GL_SUBTRACT, etc. */ - GLenum EquationA; /**< GL_ADD, GL_SUBTRACT, etc. */ - } Blend[MAX_DRAW_BUFFERS]; - /** Are the blend func terms currently different for each buffer/target? */ - GLboolean _BlendFuncPerBuffer; - /** Are the blend equations currently different for each buffer/target? */ - GLboolean _BlendEquationPerBuffer; - /*@}*/ - - /** - * \name Logic op - */ - /*@{*/ - GLenum LogicOp; /**< Logic operator */ - GLboolean IndexLogicOpEnabled; /**< Color index logic op enabled flag */ - GLboolean ColorLogicOpEnabled; /**< RGBA logic op enabled flag */ - GLboolean _LogicOpEnabled; /**< RGBA logic op + EXT_blend_logic_op enabled flag */ - /*@}*/ - - GLboolean DitherFlag; /**< Dither enable flag */ - - GLenum ClampFragmentColor; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */ - GLenum ClampReadColor; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */ - - GLboolean sRGBEnabled; /**< Framebuffer sRGB blending/updating requested */ -}; - - -/** - * Current attribute group (GL_CURRENT_BIT). - */ -struct gl_current_attrib -{ - /** - * \name Current vertex attributes. - * \note Values are valid only after FLUSH_VERTICES has been called. - * \note Index and Edgeflag current values are stored as floats in the - * SIX and SEVEN attribute slots. - */ - GLfloat Attrib[VERT_ATTRIB_MAX][4]; /**< Position, color, texcoords, etc */ - - /** - * \name Current raster position attributes (always valid). - * \note This set of attributes is very similar to the SWvertex struct. - */ - /*@{*/ - GLfloat RasterPos[4]; - GLfloat RasterDistance; - GLfloat RasterColor[4]; - GLfloat RasterSecondaryColor[4]; - GLfloat RasterTexCoords[MAX_TEXTURE_COORD_UNITS][4]; - GLboolean RasterPosValid; - /*@}*/ -}; - - -/** - * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT). - */ -struct gl_depthbuffer_attrib -{ - GLenum Func; /**< Function for depth buffer compare */ - GLclampd Clear; /**< Value to clear depth buffer to */ - GLboolean Test; /**< Depth buffering enabled flag */ - GLboolean Mask; /**< Depth buffer writable? */ - GLboolean BoundsTest; /**< GL_EXT_depth_bounds_test */ - GLfloat BoundsMin, BoundsMax;/**< GL_EXT_depth_bounds_test */ -}; - - -/** - * Evaluator attribute group (GL_EVAL_BIT). - */ -struct gl_eval_attrib -{ - /** - * \name Enable bits - */ - /*@{*/ - GLboolean Map1Color4; - GLboolean Map1Index; - GLboolean Map1Normal; - GLboolean Map1TextureCoord1; - GLboolean Map1TextureCoord2; - GLboolean Map1TextureCoord3; - GLboolean Map1TextureCoord4; - GLboolean Map1Vertex3; - GLboolean Map1Vertex4; - GLboolean Map1Attrib[16]; /* GL_NV_vertex_program */ - GLboolean Map2Color4; - GLboolean Map2Index; - GLboolean Map2Normal; - GLboolean Map2TextureCoord1; - GLboolean Map2TextureCoord2; - GLboolean Map2TextureCoord3; - GLboolean Map2TextureCoord4; - GLboolean Map2Vertex3; - GLboolean Map2Vertex4; - GLboolean Map2Attrib[16]; /* GL_NV_vertex_program */ - GLboolean AutoNormal; - /*@}*/ - - /** - * \name Map Grid endpoints and divisions and calculated du values - */ - /*@{*/ - GLint MapGrid1un; - GLfloat MapGrid1u1, MapGrid1u2, MapGrid1du; - GLint MapGrid2un, MapGrid2vn; - GLfloat MapGrid2u1, MapGrid2u2, MapGrid2du; - GLfloat MapGrid2v1, MapGrid2v2, MapGrid2dv; - /*@}*/ -}; - - -/** - * Fog attribute group (GL_FOG_BIT). - */ -struct gl_fog_attrib -{ - GLboolean Enabled; /**< Fog enabled flag */ - GLfloat Color[4]; /**< Fog color */ - GLfloat Density; /**< Density >= 0.0 */ - GLfloat Start; /**< Start distance in eye coords */ - GLfloat End; /**< End distance in eye coords */ - GLfloat Index; /**< Fog index */ - GLenum Mode; /**< Fog mode */ - GLboolean ColorSumEnabled; - GLenum FogCoordinateSource; /**< GL_EXT_fog_coord */ - GLfloat _Scale; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */ -}; - - -/** - * \brief Layout qualifiers for gl_FragDepth. - * - * Extension AMD_conservative_depth allows gl_FragDepth to be redeclared with - * a layout qualifier. - * - * \see enum ir_depth_layout - */ -enum gl_frag_depth_layout { - FRAG_DEPTH_LAYOUT_NONE, /**< No layout is specified. */ - FRAG_DEPTH_LAYOUT_ANY, - FRAG_DEPTH_LAYOUT_GREATER, - FRAG_DEPTH_LAYOUT_LESS, - FRAG_DEPTH_LAYOUT_UNCHANGED -}; - - -/** - * Hint attribute group (GL_HINT_BIT). - * - * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE. - */ -struct gl_hint_attrib -{ - GLenum PerspectiveCorrection; - GLenum PointSmooth; - GLenum LineSmooth; - GLenum PolygonSmooth; - GLenum Fog; - GLenum ClipVolumeClipping; /**< GL_EXT_clip_volume_hint */ - GLenum TextureCompression; /**< GL_ARB_texture_compression */ - GLenum GenerateMipmap; /**< GL_SGIS_generate_mipmap */ - GLenum FragmentShaderDerivative; /**< GL_ARB_fragment_shader */ -}; - -/** - * Light state flags. - */ -/*@{*/ -#define LIGHT_SPOT 0x1 -#define LIGHT_LOCAL_VIEWER 0x2 -#define LIGHT_POSITIONAL 0x4 -#define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER) -/*@}*/ - - -/** - * Lighting attribute group (GL_LIGHT_BIT). - */ -struct gl_light_attrib -{ - struct gl_light Light[MAX_LIGHTS]; /**< Array of light sources */ - struct gl_lightmodel Model; /**< Lighting model */ - - /** - * Must flush FLUSH_VERTICES before referencing: - */ - /*@{*/ - struct gl_material Material; /**< Includes front & back values */ - /*@}*/ - - GLboolean Enabled; /**< Lighting enabled flag */ - GLenum ShadeModel; /**< GL_FLAT or GL_SMOOTH */ - GLenum ProvokingVertex; /**< GL_EXT_provoking_vertex */ - GLenum ColorMaterialFace; /**< GL_FRONT, BACK or FRONT_AND_BACK */ - GLenum ColorMaterialMode; /**< GL_AMBIENT, GL_DIFFUSE, etc */ - GLbitfield ColorMaterialBitmask; /**< bitmask formed from Face and Mode */ - GLboolean ColorMaterialEnabled; - GLenum ClampVertexColor; - - struct gl_light EnabledList; /**< List sentinel */ - - /** - * Derived state for optimizations: - */ - /*@{*/ - GLboolean _NeedEyeCoords; - GLboolean _NeedVertices; /**< Use fast shader? */ - GLbitfield _Flags; /**< LIGHT_* flags, see above */ - GLfloat _BaseColor[2][3]; - /*@}*/ -}; - - -/** - * Line attribute group (GL_LINE_BIT). - */ -struct gl_line_attrib -{ - GLboolean SmoothFlag; /**< GL_LINE_SMOOTH enabled? */ - GLboolean StippleFlag; /**< GL_LINE_STIPPLE enabled? */ - GLushort StipplePattern; /**< Stipple pattern */ - GLint StippleFactor; /**< Stipple repeat factor */ - GLfloat Width; /**< Line width */ -}; - - -/** - * Display list attribute group (GL_LIST_BIT). - */ -struct gl_list_attrib -{ - GLuint ListBase; -}; - - -/** - * Multisample attribute group (GL_MULTISAMPLE_BIT). - */ -struct gl_multisample_attrib -{ - GLboolean Enabled; - GLboolean _Enabled; /**< true if Enabled and multisample buffer */ - GLboolean SampleAlphaToCoverage; - GLboolean SampleAlphaToOne; - GLboolean SampleCoverage; - GLfloat SampleCoverageValue; - GLboolean SampleCoverageInvert; -}; - - -/** - * A pixelmap (see glPixelMap) - */ -struct gl_pixelmap -{ - GLint Size; - GLfloat Map[MAX_PIXEL_MAP_TABLE]; - GLubyte Map8[MAX_PIXEL_MAP_TABLE]; /**< converted to 8-bit color */ -}; - - -/** - * Collection of all pixelmaps - */ -struct gl_pixelmaps -{ - struct gl_pixelmap RtoR; /**< i.e. GL_PIXEL_MAP_R_TO_R */ - struct gl_pixelmap GtoG; - struct gl_pixelmap BtoB; - struct gl_pixelmap AtoA; - struct gl_pixelmap ItoR; - struct gl_pixelmap ItoG; - struct gl_pixelmap ItoB; - struct gl_pixelmap ItoA; - struct gl_pixelmap ItoI; - struct gl_pixelmap StoS; -}; - - -/** - * Pixel attribute group (GL_PIXEL_MODE_BIT). - */ -struct gl_pixel_attrib -{ - GLenum ReadBuffer; /**< source buffer for glRead/CopyPixels() */ - - /*--- Begin Pixel Transfer State ---*/ - /* Fields are in the order in which they're applied... */ - - /** Scale & Bias (index shift, offset) */ - /*@{*/ - GLfloat RedBias, RedScale; - GLfloat GreenBias, GreenScale; - GLfloat BlueBias, BlueScale; - GLfloat AlphaBias, AlphaScale; - GLfloat DepthBias, DepthScale; - GLint IndexShift, IndexOffset; - /*@}*/ - - /* Pixel Maps */ - /* Note: actual pixel maps are not part of this attrib group */ - GLboolean MapColorFlag; - GLboolean MapStencilFlag; - - /*--- End Pixel Transfer State ---*/ - - /** glPixelZoom */ - GLfloat ZoomX, ZoomY; -}; - - -/** - * Point attribute group (GL_POINT_BIT). - */ -struct gl_point_attrib -{ - GLboolean SmoothFlag; /**< True if GL_POINT_SMOOTH is enabled */ - GLfloat Size; /**< User-specified point size */ - GLfloat Params[3]; /**< GL_EXT_point_parameters */ - GLfloat MinSize, MaxSize; /**< GL_EXT_point_parameters */ - GLfloat Threshold; /**< GL_EXT_point_parameters */ - GLboolean _Attenuated; /**< True if Params != [1, 0, 0] */ - GLboolean PointSprite; /**< GL_NV/ARB_point_sprite */ - GLboolean CoordReplace[MAX_TEXTURE_COORD_UNITS]; /**< GL_ARB_point_sprite*/ - GLenum SpriteRMode; /**< GL_NV_point_sprite (only!) */ - GLenum SpriteOrigin; /**< GL_ARB_point_sprite */ -}; - - -/** - * Polygon attribute group (GL_POLYGON_BIT). - */ -struct gl_polygon_attrib -{ - GLenum FrontFace; /**< Either GL_CW or GL_CCW */ - GLenum FrontMode; /**< Either GL_POINT, GL_LINE or GL_FILL */ - GLenum BackMode; /**< Either GL_POINT, GL_LINE or GL_FILL */ - GLboolean _FrontBit; /**< 0=GL_CCW, 1=GL_CW */ - GLboolean CullFlag; /**< Culling on/off flag */ - GLboolean SmoothFlag; /**< True if GL_POLYGON_SMOOTH is enabled */ - GLboolean StippleFlag; /**< True if GL_POLYGON_STIPPLE is enabled */ - GLenum CullFaceMode; /**< Culling mode GL_FRONT or GL_BACK */ - GLfloat OffsetFactor; /**< Polygon offset factor, from user */ - GLfloat OffsetUnits; /**< Polygon offset units, from user */ - GLboolean OffsetPoint; /**< Offset in GL_POINT mode */ - GLboolean OffsetLine; /**< Offset in GL_LINE mode */ - GLboolean OffsetFill; /**< Offset in GL_FILL mode */ -}; - - -/** - * Scissor attributes (GL_SCISSOR_BIT). - */ -struct gl_scissor_attrib -{ - GLboolean Enabled; /**< Scissor test enabled? */ - GLint X, Y; /**< Lower left corner of box */ - GLsizei Width, Height; /**< Size of box */ -}; - - -/** - * Stencil attribute group (GL_STENCIL_BUFFER_BIT). - * - * Three sets of stencil data are tracked so that OpenGL 2.0, - * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported - * simultaneously. In each of the stencil state arrays, element 0 corresponds - * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 / - * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the - * GL_EXT_stencil_two_side GL_BACK state. - * - * The derived value \c _BackFace is either 1 or 2 depending on whether or - * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled. - * - * The derived value \c _TestTwoSide is set when the front-face and back-face - * stencil state are different. - */ -struct gl_stencil_attrib -{ - GLboolean Enabled; /**< Enabled flag */ - GLboolean TestTwoSide; /**< GL_EXT_stencil_two_side */ - GLubyte ActiveFace; /**< GL_EXT_stencil_two_side (0 or 2) */ - GLboolean _Enabled; /**< Enabled and stencil buffer present */ - GLboolean _TestTwoSide; - GLubyte _BackFace; /**< Current back stencil state (1 or 2) */ - GLenum Function[3]; /**< Stencil function */ - GLenum FailFunc[3]; /**< Fail function */ - GLenum ZPassFunc[3]; /**< Depth buffer pass function */ - GLenum ZFailFunc[3]; /**< Depth buffer fail function */ - GLint Ref[3]; /**< Reference value */ - GLuint ValueMask[3]; /**< Value mask */ - GLuint WriteMask[3]; /**< Write mask */ - GLuint Clear; /**< Clear value */ -}; - - -/** - * An index for each type of texture object. These correspond to the GL - * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc. - * Note: the order is from highest priority to lowest priority. - */ -typedef enum -{ - TEXTURE_2D_ARRAY_INDEX, - TEXTURE_1D_ARRAY_INDEX, - TEXTURE_CUBE_INDEX, - TEXTURE_3D_INDEX, - TEXTURE_RECT_INDEX, - TEXTURE_2D_INDEX, - TEXTURE_1D_INDEX, - NUM_TEXTURE_TARGETS -} gl_texture_index; - - -/** - * Bit flags for each type of texture object - * Used for Texture.Unit[]._ReallyEnabled flags. - */ -/*@{*/ -#define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX) -#define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX) -#define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX) -#define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX) -#define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX) -#define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX) -#define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX) -/*@}*/ - - -/** - * TexGenEnabled flags. - */ -/*@{*/ -#define S_BIT 1 -#define T_BIT 2 -#define R_BIT 4 -#define Q_BIT 8 -#define STR_BITS (S_BIT | T_BIT | R_BIT) -/*@}*/ - - -/** - * Bit flag versions of the corresponding GL_ constants. - */ -/*@{*/ -#define TEXGEN_SPHERE_MAP 0x1 -#define TEXGEN_OBJ_LINEAR 0x2 -#define TEXGEN_EYE_LINEAR 0x4 -#define TEXGEN_REFLECTION_MAP_NV 0x8 -#define TEXGEN_NORMAL_MAP_NV 0x10 - -#define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \ - TEXGEN_REFLECTION_MAP_NV | \ - TEXGEN_NORMAL_MAP_NV) -#define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \ - TEXGEN_REFLECTION_MAP_NV | \ - TEXGEN_NORMAL_MAP_NV | \ - TEXGEN_EYE_LINEAR) -/*@}*/ - - - -/** Tex-gen enabled for texture unit? */ -#define ENABLE_TEXGEN(unit) (1 << (unit)) - -/** Non-identity texture matrix for texture unit? */ -#define ENABLE_TEXMAT(unit) (1 << (unit)) - - -/** - * Texel fetch function prototype. We use texel fetch functions to - * extract RGBA, color indexes and depth components out of 1D, 2D and 3D - * texture images. These functions help to isolate us from the gritty - * details of all the various texture image encodings. - * - * \param texImage texture image. - * \param col texel column. - * \param row texel row. - * \param img texel image level/layer. - * \param texelOut output texel (up to 4 GLchans) - */ -typedef void (*FetchTexelFuncC)( const struct gl_texture_image *texImage, - GLint col, GLint row, GLint img, - GLchan *texelOut ); - -/** - * As above, but returns floats. - * Used for depth component images and for upcoming signed/float - * texture images. - */ -typedef void (*FetchTexelFuncF)( const struct gl_texture_image *texImage, - GLint col, GLint row, GLint img, - GLfloat *texelOut ); - - -typedef void (*StoreTexelFunc)(struct gl_texture_image *texImage, - GLint col, GLint row, GLint img, - const void *texel); - - -/** - * Texture image state. Describes the dimensions of a texture image, - * the texel format and pointers to Texel Fetch functions. - */ -struct gl_texture_image -{ - GLint InternalFormat; /**< Internal format as given by the user */ - GLenum _BaseFormat; /**< Either GL_RGB, GL_RGBA, GL_ALPHA, - * GL_LUMINANCE, GL_LUMINANCE_ALPHA, - * GL_INTENSITY, GL_COLOR_INDEX, - * GL_DEPTH_COMPONENT or GL_DEPTH_STENCIL_EXT - * only. Used for choosing TexEnv arithmetic. - */ - gl_format TexFormat; /**< The actual texture memory format */ - - GLuint Border; /**< 0 or 1 */ - GLuint Width; /**< = 2^WidthLog2 + 2*Border */ - GLuint Height; /**< = 2^HeightLog2 + 2*Border */ - GLuint Depth; /**< = 2^DepthLog2 + 2*Border */ - GLuint Width2; /**< = Width - 2*Border */ - GLuint Height2; /**< = Height - 2*Border */ - GLuint Depth2; /**< = Depth - 2*Border */ - GLuint WidthLog2; /**< = log2(Width2) */ - GLuint HeightLog2; /**< = log2(Height2) */ - GLuint DepthLog2; /**< = log2(Depth2) */ - GLuint MaxLog2; /**< = MAX(WidthLog2, HeightLog2) */ - GLfloat WidthScale; /**< used for mipmap LOD computation */ - GLfloat HeightScale; /**< used for mipmap LOD computation */ - GLfloat DepthScale; /**< used for mipmap LOD computation */ - GLboolean IsClientData; /**< Data owned by client? */ - GLboolean _IsPowerOfTwo; /**< Are all dimensions powers of two? */ - - struct gl_texture_object *TexObject; /**< Pointer back to parent object */ - - FetchTexelFuncC FetchTexelc; /**< GLchan texel fetch function pointer */ - FetchTexelFuncF FetchTexelf; /**< Float texel fetch function pointer */ - - GLuint RowStride; /**< Padded width in units of texels */ - GLuint *ImageOffsets; /**< if 3D texture: array [Depth] of offsets to - each 2D slice in 'Data', in texels */ - GLvoid *Data; /**< Image data, accessed via FetchTexel() */ - - /** - * \name For device driver: - */ - /*@{*/ - void *DriverData; /**< Arbitrary device driver data */ - /*@}*/ -}; - - -/** - * Indexes for cube map faces. - */ -typedef enum -{ - FACE_POS_X = 0, - FACE_NEG_X = 1, - FACE_POS_Y = 2, - FACE_NEG_Y = 3, - FACE_POS_Z = 4, - FACE_NEG_Z = 5, - MAX_FACES = 6 -} gl_face_index; - - -/** - * Texture object state. Contains the array of mipmap images, border color, - * wrap modes, filter modes, shadow/texcompare state, and the per-texture - * color palette. - */ -struct gl_texture_object -{ - _glthread_Mutex Mutex; /**< for thread safety */ - GLint RefCount; /**< reference count */ - GLuint Name; /**< the user-visible texture object ID */ - GLenum Target; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */ - GLfloat Priority; /**< in [0,1] */ - union { - GLfloat f[4]; - GLuint ui[4]; - GLint i[4]; - } BorderColor; /**< Interpreted according to texture format */ - GLenum WrapS; /**< S-axis texture image wrap mode */ - GLenum WrapT; /**< T-axis texture image wrap mode */ - GLenum WrapR; /**< R-axis texture image wrap mode */ - GLenum MinFilter; /**< minification filter */ - GLenum MagFilter; /**< magnification filter */ - GLfloat MinLod; /**< min lambda, OpenGL 1.2 */ - GLfloat MaxLod; /**< max lambda, OpenGL 1.2 */ - GLfloat LodBias; /**< OpenGL 1.4 */ - GLint BaseLevel; /**< min mipmap level, OpenGL 1.2 */ - GLint MaxLevel; /**< max mipmap level, OpenGL 1.2 */ - GLfloat MaxAnisotropy; /**< GL_EXT_texture_filter_anisotropic */ - GLenum CompareMode; /**< GL_ARB_shadow */ - GLenum CompareFunc; /**< GL_ARB_shadow */ - GLfloat CompareFailValue; /**< GL_ARB_shadow_ambient */ - GLenum DepthMode; /**< GL_ARB_depth_texture */ - GLint _MaxLevel; /**< actual max mipmap level (q in the spec) */ - GLfloat _MaxLambda; /**< = _MaxLevel - BaseLevel (q - b in spec) */ - GLint CropRect[4]; /**< GL_OES_draw_texture */ - GLenum Swizzle[4]; /**< GL_EXT_texture_swizzle */ - GLuint _Swizzle; /**< same as Swizzle, but SWIZZLE_* format */ - GLboolean GenerateMipmap; /**< GL_SGIS_generate_mipmap */ - GLboolean _Complete; /**< Is texture object complete? */ - GLboolean _RenderToTexture; /**< Any rendering to this texture? */ - GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */ - GLenum sRGBDecode; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */ - - /** Actual texture images, indexed by [cube face] and [mipmap level] */ - struct gl_texture_image *Image[MAX_FACES][MAX_TEXTURE_LEVELS]; - - /** GL_EXT_paletted_texture */ - struct gl_color_table Palette; - - /** - * \name For device driver. - * Note: instead of attaching driver data to this pointer, it's preferable - * to instead use this struct as a base class for your own texture object - * class. Driver->NewTextureObject() can be used to implement the - * allocation. - */ - void *DriverData; /**< Arbitrary device driver data */ -}; - - -/** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */ -#define MAX_COMBINER_TERMS 4 - - -/** - * Texture combine environment state. - */ -struct gl_tex_env_combine_state -{ - GLenum ModeRGB; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ - GLenum ModeA; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ - /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */ - GLenum SourceRGB[MAX_COMBINER_TERMS]; - GLenum SourceA[MAX_COMBINER_TERMS]; - /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */ - GLenum OperandRGB[MAX_COMBINER_TERMS]; - GLenum OperandA[MAX_COMBINER_TERMS]; - GLuint ScaleShiftRGB; /**< 0, 1 or 2 */ - GLuint ScaleShiftA; /**< 0, 1 or 2 */ - GLuint _NumArgsRGB; /**< Number of inputs used for the RGB combiner */ - GLuint _NumArgsA; /**< Number of inputs used for the A combiner */ -}; - - -/** - * Texture coord generation state. - */ -struct gl_texgen -{ - GLenum Mode; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */ - GLbitfield _ModeBit; /**< TEXGEN_x bit corresponding to Mode */ - GLfloat ObjectPlane[4]; - GLfloat EyePlane[4]; -}; - - -/** - * Texture unit state. Contains enable flags, texture environment/function/ - * combiners, texgen state, pointers to current texture objects and - * post-filter color tables. - */ -struct gl_texture_unit -{ - GLbitfield Enabled; /**< bitmask of TEXTURE_*_BIT flags */ - GLbitfield _ReallyEnabled; /**< 0 or exactly one of TEXTURE_*_BIT flags */ - - GLenum EnvMode; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */ - GLfloat EnvColor[4]; - - struct gl_texgen GenS; - struct gl_texgen GenT; - struct gl_texgen GenR; - struct gl_texgen GenQ; - GLbitfield TexGenEnabled; /**< Bitwise-OR of [STRQ]_BIT values */ - GLbitfield _GenFlags; /**< Bitwise-OR of Gen[STRQ]._ModeBit */ - - GLfloat LodBias; /**< for biasing mipmap levels */ - GLenum BumpTarget; - GLfloat RotMatrix[4]; /* 2x2 matrix */ - - /** - * \name GL_EXT_texture_env_combine - */ - struct gl_tex_env_combine_state Combine; - - /** - * Derived state based on \c EnvMode and the \c BaseFormat of the - * currently enabled texture. - */ - struct gl_tex_env_combine_state _EnvMode; - - /** - * Currently enabled combiner state. This will point to either - * \c Combine or \c _EnvMode. - */ - struct gl_tex_env_combine_state *_CurrentCombine; - - /** Current texture object pointers */ - struct gl_texture_object *CurrentTex[NUM_TEXTURE_TARGETS]; - - /** Points to highest priority, complete and enabled texture object */ - struct gl_texture_object *_Current; -}; - - -/** - * Texture attribute group (GL_TEXTURE_BIT). - */ -struct gl_texture_attrib -{ - GLuint CurrentUnit; /**< GL_ACTIVE_TEXTURE */ - struct gl_texture_unit Unit[MAX_COMBINED_TEXTURE_IMAGE_UNITS]; - - struct gl_texture_object *ProxyTex[NUM_TEXTURE_TARGETS]; - - /** GL_ARB_seamless_cubemap */ - GLboolean CubeMapSeamless; - - /** GL_EXT_shared_texture_palette */ - GLboolean SharedPalette; - struct gl_color_table Palette; - - /** Texture units/samplers used by vertex or fragment texturing */ - GLbitfield _EnabledUnits; - - /** Texture coord units/sets used for fragment texturing */ - GLbitfield _EnabledCoordUnits; - - /** Texture coord units that have texgen enabled */ - GLbitfield _TexGenEnabled; - - /** Texture coord units that have non-identity matrices */ - GLbitfield _TexMatEnabled; - - /** Bitwise-OR of all Texture.Unit[i]._GenFlags */ - GLbitfield _GenFlags; -}; - - -/** - * Transformation attribute group (GL_TRANSFORM_BIT). - */ -struct gl_transform_attrib -{ - GLenum MatrixMode; /**< Matrix mode */ - GLfloat EyeUserPlane[MAX_CLIP_PLANES][4]; /**< User clip planes */ - GLfloat _ClipUserPlane[MAX_CLIP_PLANES][4]; /**< derived */ - GLbitfield ClipPlanesEnabled; /**< on/off bitmask */ - GLboolean Normalize; /**< Normalize all normals? */ - GLboolean RescaleNormals; /**< GL_EXT_rescale_normal */ - GLboolean RasterPositionUnclipped; /**< GL_IBM_rasterpos_clip */ - GLboolean DepthClamp; /**< GL_ARB_depth_clamp */ - - GLfloat CullEyePos[4]; - GLfloat CullObjPos[4]; -}; - - -/** - * Viewport attribute group (GL_VIEWPORT_BIT). - */ -struct gl_viewport_attrib -{ - GLint X, Y; /**< position */ - GLsizei Width, Height; /**< size */ - GLfloat Near, Far; /**< Depth buffer range */ - GLmatrix _WindowMap; /**< Mapping transformation as a matrix. */ -}; - - -/** - * GL_ARB_vertex/pixel_buffer_object buffer object - */ -struct gl_buffer_object -{ - _glthread_Mutex Mutex; - GLint RefCount; - GLuint Name; - GLenum Usage; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */ - GLsizeiptrARB Size; /**< Size of buffer storage in bytes */ - GLubyte *Data; /**< Location of storage either in RAM or VRAM. */ - /** Fields describing a mapped buffer */ - /*@{*/ - GLbitfield AccessFlags; /**< Mask of GL_MAP_x_BIT flags */ - GLvoid *Pointer; /**< User-space address of mapping */ - GLintptr Offset; /**< Mapped offset */ - GLsizeiptr Length; /**< Mapped length */ - /*@}*/ - GLboolean Written; /**< Ever written to? (for debugging) */ - GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */ -}; - - -/** - * Client pixel packing/unpacking attributes - */ -struct gl_pixelstore_attrib -{ - GLint Alignment; - GLint RowLength; - GLint SkipPixels; - GLint SkipRows; - GLint ImageHeight; - GLint SkipImages; - GLboolean SwapBytes; - GLboolean LsbFirst; - GLboolean ClientStorage; /**< GL_APPLE_client_storage */ - GLboolean Invert; /**< GL_MESA_pack_invert */ - struct gl_buffer_object *BufferObj; /**< GL_ARB_pixel_buffer_object */ -}; - - -/** - * Client vertex array attributes - */ -struct gl_client_array -{ - GLint Size; /**< components per element (1,2,3,4) */ - GLenum Type; /**< datatype: GL_FLOAT, GL_INT, etc */ - GLenum Format; /**< default: GL_RGBA, but may be GL_BGRA */ - GLsizei Stride; /**< user-specified stride */ - GLsizei StrideB; /**< actual stride in bytes */ - const GLubyte *Ptr; /**< Points to array data */ - GLboolean Enabled; /**< Enabled flag is a boolean */ - GLboolean Normalized; /**< GL_ARB_vertex_program */ - GLboolean Integer; /**< Integer-valued? */ - GLuint InstanceDivisor; /**< GL_ARB_instanced_arrays */ - GLuint _ElementSize; /**< size of each element in bytes */ - - struct gl_buffer_object *BufferObj;/**< GL_ARB_vertex_buffer_object */ - GLuint _MaxElement; /**< max element index into array buffer + 1 */ -}; - - -/** - * Collection of vertex arrays. Defined by the GL_APPLE_vertex_array_object - * extension, but a nice encapsulation in any case. - */ -struct gl_array_object -{ - /** Name of the array object as received from glGenVertexArrayAPPLE. */ - GLuint Name; - - GLint RefCount; - _glthread_Mutex Mutex; - GLboolean VBOonly; /**< require all arrays to live in VBOs? */ - - /** Conventional vertex arrays */ - /*@{*/ - struct gl_client_array Vertex; - struct gl_client_array Weight; - struct gl_client_array Normal; - struct gl_client_array Color; - struct gl_client_array SecondaryColor; - struct gl_client_array FogCoord; - struct gl_client_array Index; - struct gl_client_array EdgeFlag; - struct gl_client_array TexCoord[MAX_TEXTURE_COORD_UNITS]; - struct gl_client_array PointSize; - /*@}*/ - - /** - * Generic arrays for vertex programs/shaders. - * For NV vertex programs, these attributes alias and take priority - * over the conventional attribs above. For ARB vertex programs and - * GLSL vertex shaders, these attributes are separate. - */ - struct gl_client_array VertexAttrib[MAX_VERTEX_GENERIC_ATTRIBS]; - - /** Mask of _NEW_ARRAY_* values indicating which arrays are enabled */ - GLbitfield _Enabled; - - /** - * Min of all enabled arrays' _MaxElement. When arrays reside inside VBOs - * we can determine the max legal (in bounds) glDrawElements array index. - */ - GLuint _MaxElement; -}; - - -/** - * Vertex array state - */ -struct gl_array_attrib -{ - /** Currently bound array object. See _mesa_BindVertexArrayAPPLE() */ - struct gl_array_object *ArrayObj; - - /** The default vertex array object */ - struct gl_array_object *DefaultArrayObj; - - /** Array objects (GL_ARB/APPLE_vertex_array_object) */ - struct _mesa_HashTable *Objects; - - GLint ActiveTexture; /**< Client Active Texture */ - GLuint LockFirst; /**< GL_EXT_compiled_vertex_array */ - GLuint LockCount; /**< GL_EXT_compiled_vertex_array */ - - /** GL 3.1 (slightly different from GL_NV_primitive_restart) */ - GLboolean PrimitiveRestart; - GLuint RestartIndex; - - GLbitfield NewState; /**< mask of _NEW_ARRAY_* values */ - GLboolean RebindArrays; /**< whether the VBO module should rebind arrays */ - - /* GL_ARB_vertex_buffer_object */ - struct gl_buffer_object *ArrayBufferObj; - struct gl_buffer_object *ElementArrayBufferObj; -}; - - -/** - * Feedback buffer state - */ -struct gl_feedback -{ - GLenum Type; - GLbitfield _Mask; /**< FB_* bits */ - GLfloat *Buffer; - GLuint BufferSize; - GLuint Count; -}; - - -/** - * Selection buffer state - */ -struct gl_selection -{ - GLuint *Buffer; /**< selection buffer */ - GLuint BufferSize; /**< size of the selection buffer */ - GLuint BufferCount; /**< number of values in the selection buffer */ - GLuint Hits; /**< number of records in the selection buffer */ - GLuint NameStackDepth; /**< name stack depth */ - GLuint NameStack[MAX_NAME_STACK_DEPTH]; /**< name stack */ - GLboolean HitFlag; /**< hit flag */ - GLfloat HitMinZ; /**< minimum hit depth */ - GLfloat HitMaxZ; /**< maximum hit depth */ -}; - - -/** - * 1-D Evaluator control points - */ -struct gl_1d_map -{ - GLuint Order; /**< Number of control points */ - GLfloat u1, u2, du; /**< u1, u2, 1.0/(u2-u1) */ - GLfloat *Points; /**< Points to contiguous control points */ -}; - - -/** - * 2-D Evaluator control points - */ -struct gl_2d_map -{ - GLuint Uorder; /**< Number of control points in U dimension */ - GLuint Vorder; /**< Number of control points in V dimension */ - GLfloat u1, u2, du; - GLfloat v1, v2, dv; - GLfloat *Points; /**< Points to contiguous control points */ -}; - - -/** - * All evaluator control point state - */ -struct gl_evaluators -{ - /** - * \name 1-D maps - */ - /*@{*/ - struct gl_1d_map Map1Vertex3; - struct gl_1d_map Map1Vertex4; - struct gl_1d_map Map1Index; - struct gl_1d_map Map1Color4; - struct gl_1d_map Map1Normal; - struct gl_1d_map Map1Texture1; - struct gl_1d_map Map1Texture2; - struct gl_1d_map Map1Texture3; - struct gl_1d_map Map1Texture4; - struct gl_1d_map Map1Attrib[16]; /**< GL_NV_vertex_program */ - /*@}*/ - - /** - * \name 2-D maps - */ - /*@{*/ - struct gl_2d_map Map2Vertex3; - struct gl_2d_map Map2Vertex4; - struct gl_2d_map Map2Index; - struct gl_2d_map Map2Color4; - struct gl_2d_map Map2Normal; - struct gl_2d_map Map2Texture1; - struct gl_2d_map Map2Texture2; - struct gl_2d_map Map2Texture3; - struct gl_2d_map Map2Texture4; - struct gl_2d_map Map2Attrib[16]; /**< GL_NV_vertex_program */ - /*@}*/ -}; - - -/** - * Names of the various vertex/fragment program register files, etc. - * - * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c) - * All values should fit in a 4-bit field. - * - * NOTE: PROGRAM_ENV_PARAM, PROGRAM_STATE_VAR, PROGRAM_NAMED_PARAM, - * PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be considered to - * be "uniform" variables since they can only be set outside glBegin/End. - * They're also all stored in the same Parameters array. - */ -typedef enum -{ - PROGRAM_TEMPORARY, /**< machine->Temporary[] */ - PROGRAM_INPUT, /**< machine->Inputs[] */ - PROGRAM_OUTPUT, /**< machine->Outputs[] */ - PROGRAM_VARYING, /**< machine->Inputs[]/Outputs[] */ - PROGRAM_LOCAL_PARAM, /**< gl_program->LocalParams[] */ - PROGRAM_ENV_PARAM, /**< gl_program->Parameters[] */ - PROGRAM_STATE_VAR, /**< gl_program->Parameters[] */ - PROGRAM_NAMED_PARAM, /**< gl_program->Parameters[] */ - PROGRAM_CONSTANT, /**< gl_program->Parameters[] */ - PROGRAM_UNIFORM, /**< gl_program->Parameters[] */ - PROGRAM_WRITE_ONLY, /**< A dummy, write-only register */ - PROGRAM_ADDRESS, /**< machine->AddressReg */ - PROGRAM_SAMPLER, /**< for shader samplers, compile-time only */ - PROGRAM_SYSTEM_VALUE,/**< InstanceId, PrimitiveID, etc. */ - PROGRAM_UNDEFINED, /**< Invalid/TBD value */ - PROGRAM_FILE_MAX -} gl_register_file; - - -/** - * If the register file is PROGRAM_SYSTEM_VALUE, the register index will be - * one of these values. - */ -typedef enum -{ - SYSTEM_VALUE_FRONT_FACE, /**< Fragment shader only (not done yet) */ - SYSTEM_VALUE_INSTANCE_ID, /**< Vertex shader only */ - SYSTEM_VALUE_MAX /**< Number of values */ -} gl_system_value; - - -/** Vertex and fragment instructions */ -struct prog_instruction; -struct gl_program_parameter_list; -struct gl_uniform_list; - - -/** - * Base class for any kind of program object - */ -struct gl_program -{ - GLuint Id; - GLubyte *String; /**< Null-terminated program text */ - GLint RefCount; - GLenum Target; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_FRAGMENT_PROGRAM_NV */ - GLenum Format; /**< String encoding format */ - GLboolean Resident; - - struct prog_instruction *Instructions; - - GLbitfield InputsRead; /**< Bitmask of which input regs are read */ - GLbitfield64 OutputsWritten; /**< Bitmask of which output regs are written */ - GLbitfield SystemValuesRead; /**< Bitmask of SYSTEM_VALUE_x inputs used */ - GLbitfield InputFlags[MAX_PROGRAM_INPUTS]; /**< PROG_PARAM_BIT_x flags */ - GLbitfield OutputFlags[MAX_PROGRAM_OUTPUTS]; /**< PROG_PARAM_BIT_x flags */ - GLbitfield TexturesUsed[MAX_TEXTURE_UNITS]; /**< TEXTURE_x_BIT bitmask */ - GLbitfield SamplersUsed; /**< Bitfield of which samplers are used */ - GLbitfield ShadowSamplers; /**< Texture units used for shadow sampling. */ - - - /** Named parameters, constants, etc. from program text */ - struct gl_program_parameter_list *Parameters; - /** Numbered local parameters */ - GLfloat LocalParams[MAX_PROGRAM_LOCAL_PARAMS][4]; - - /** Vertex/fragment shader varying vars */ - struct gl_program_parameter_list *Varying; - /** Vertex program user-defined attributes */ - struct gl_program_parameter_list *Attributes; - - /** Map from sampler unit to texture unit (set by glUniform1i()) */ - GLubyte SamplerUnits[MAX_SAMPLERS]; - /** Which texture target is being sampled (TEXTURE_1D/2D/3D/etc_INDEX) */ - gl_texture_index SamplerTargets[MAX_SAMPLERS]; - - /** Bitmask of which register files are read/written with indirect - * addressing. Mask of (1 << PROGRAM_x) bits. - */ - GLbitfield IndirectRegisterFiles; - - /** Logical counts */ - /*@{*/ - GLuint NumInstructions; - GLuint NumTemporaries; - GLuint NumParameters; - GLuint NumAttributes; - GLuint NumAddressRegs; - GLuint NumAluInstructions; - GLuint NumTexInstructions; - GLuint NumTexIndirections; - /*@}*/ - /** Native, actual h/w counts */ - /*@{*/ - GLuint NumNativeInstructions; - GLuint NumNativeTemporaries; - GLuint NumNativeParameters; - GLuint NumNativeAttributes; - GLuint NumNativeAddressRegs; - GLuint NumNativeAluInstructions; - GLuint NumNativeTexInstructions; - GLuint NumNativeTexIndirections; - /*@}*/ -}; - - -/** Vertex program object */ -struct gl_vertex_program -{ - struct gl_program Base; /**< base class */ - GLboolean IsNVProgram; /**< is this a GL_NV_vertex_program program? */ - GLboolean IsPositionInvariant; -}; - - -/** Geometry program object */ -struct gl_geometry_program -{ - struct gl_program Base; /**< base class */ - - GLint VerticesOut; - GLenum InputType; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB, - GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */ - GLenum OutputType; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */ -}; - - -/** Fragment program object */ -struct gl_fragment_program -{ - struct gl_program Base; /**< base class */ - GLenum FogOption; - GLboolean UsesKill; /**< shader uses KIL instruction */ - GLboolean OriginUpperLeft; - GLboolean PixelCenterInteger; - enum gl_frag_depth_layout FragDepthLayout; -}; - - -/** - * State common to vertex and fragment programs. - */ -struct gl_program_state -{ - GLint ErrorPos; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */ - const char *ErrorString; /* GL_PROGRAM_ERROR_STRING_ARB/NV */ -}; - - -/** - * Context state for vertex programs. - */ -struct gl_vertex_program_state -{ - GLboolean Enabled; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */ - GLboolean _Enabled; /**< Enabled and _valid_ user program? */ - GLboolean PointSizeEnabled; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */ - GLboolean TwoSideEnabled; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */ - struct gl_vertex_program *Current; /**< User-bound vertex program */ - - /** Currently enabled and valid vertex program (including internal - * programs, user-defined vertex programs and GLSL vertex shaders). - * This is the program we must use when rendering. - */ - struct gl_vertex_program *_Current; - - GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */ - - /* For GL_NV_vertex_program only: */ - GLenum TrackMatrix[MAX_PROGRAM_ENV_PARAMS / 4]; - GLenum TrackMatrixTransform[MAX_PROGRAM_ENV_PARAMS / 4]; - - /** Should fixed-function T&L be implemented with a vertex prog? */ - GLboolean _MaintainTnlProgram; - - /** Program to emulate fixed-function T&L (see above) */ - struct gl_vertex_program *_TnlProgram; - - /** Cache of fixed-function programs */ - struct gl_program_cache *Cache; - - GLboolean _Overriden; -}; - - -/** - * Context state for geometry programs. - */ -struct gl_geometry_program_state -{ - GLboolean Enabled; /**< GL_ARB_GEOMETRY_SHADER4 */ - GLboolean _Enabled; /**< Enabled and valid program? */ - struct gl_geometry_program *Current; /**< user-bound geometry program */ - - /** Currently enabled and valid program (including internal programs - * and compiled shader programs). - */ - struct gl_geometry_program *_Current; - - GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */ - - /** Cache of fixed-function programs */ - struct gl_program_cache *Cache; -}; - -/** - * Context state for fragment programs. - */ -struct gl_fragment_program_state -{ - GLboolean Enabled; /**< User-set fragment program enable flag */ - GLboolean _Enabled; /**< Enabled and _valid_ user program? */ - struct gl_fragment_program *Current; /**< User-bound fragment program */ - - /** Currently enabled and valid fragment program (including internal - * programs, user-defined fragment programs and GLSL fragment shaders). - * This is the program we must use when rendering. - */ - struct gl_fragment_program *_Current; - - GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */ - - /** Should fixed-function texturing be implemented with a fragment prog? */ - GLboolean _MaintainTexEnvProgram; - - /** Program to emulate fixed-function texture env/combine (see above) */ - struct gl_fragment_program *_TexEnvProgram; - - /** Cache of fixed-function programs */ - struct gl_program_cache *Cache; -}; - - -/** - * ATI_fragment_shader runtime state - */ -#define ATI_FS_INPUT_PRIMARY 0 -#define ATI_FS_INPUT_SECONDARY 1 - -struct atifs_instruction; -struct atifs_setupinst; - -/** - * ATI fragment shader - */ -struct ati_fragment_shader -{ - GLuint Id; - GLint RefCount; - struct atifs_instruction *Instructions[2]; - struct atifs_setupinst *SetupInst[2]; - GLfloat Constants[8][4]; - GLbitfield LocalConstDef; /**< Indicates which constants have been set */ - GLubyte numArithInstr[2]; - GLubyte regsAssigned[2]; - GLubyte NumPasses; /**< 1 or 2 */ - GLubyte cur_pass; - GLubyte last_optype; - GLboolean interpinp1; - GLboolean isValid; - GLuint swizzlerq; -}; - -/** - * Context state for GL_ATI_fragment_shader - */ -struct gl_ati_fragment_shader_state -{ - GLboolean Enabled; - GLboolean _Enabled; /**< enabled and valid shader? */ - GLboolean Compiling; - GLfloat GlobalConstants[8][4]; - struct ati_fragment_shader *Current; -}; - - -/** - * Occlusion/timer query object. - */ -struct gl_query_object -{ - GLenum Target; /**< The query target, when active */ - GLuint Id; /**< hash table ID/name */ - GLuint64EXT Result; /**< the counter */ - GLboolean Active; /**< inside Begin/EndQuery */ - GLboolean Ready; /**< result is ready? */ -}; - - -/** - * Context state for query objects. - */ -struct gl_query_state -{ - struct _mesa_HashTable *QueryObjects; - struct gl_query_object *CurrentOcclusionObject; /* GL_ARB_occlusion_query */ - struct gl_query_object *CurrentTimerObject; /* GL_EXT_timer_query */ - - /** GL_NV_conditional_render */ - struct gl_query_object *CondRenderQuery; - - /** GL_EXT_transform_feedback */ - struct gl_query_object *PrimitivesGenerated; - struct gl_query_object *PrimitivesWritten; - - /** GL_ARB_timer_query */ - struct gl_query_object *TimeElapsed; - - GLenum CondRenderMode; -}; - - -/** Sync object state */ -struct gl_sync_object { - struct simple_node link; - GLenum Type; /**< GL_SYNC_FENCE */ - GLuint Name; /**< Fence name */ - GLint RefCount; /**< Reference count */ - GLboolean DeletePending; /**< Object was deleted while there were still - * live references (e.g., sync not yet finished) - */ - GLenum SyncCondition; - GLbitfield Flags; /**< Flags passed to glFenceSync */ - GLuint StatusFlag:1; /**< Has the sync object been signaled? */ -}; - - -/** Set by #pragma directives */ -struct gl_sl_pragmas -{ - GLboolean IgnoreOptimize; /**< ignore #pragma optimize(on/off) ? */ - GLboolean IgnoreDebug; /**< ignore #pragma debug(on/off) ? */ - GLboolean Optimize; /**< defaults on */ - GLboolean Debug; /**< defaults off */ -}; - - -/** - * A GLSL vertex or fragment shader object. - */ -struct gl_shader -{ - GLenum Type; /**< GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB (first field!) */ - GLuint Name; /**< AKA the handle */ - GLint RefCount; /**< Reference count */ - GLboolean DeletePending; - GLboolean CompileStatus; - const GLchar *Source; /**< Source code string */ - GLuint SourceChecksum; /**< for debug/logging purposes */ - struct gl_program *Program; /**< Post-compile assembly code */ - GLchar *InfoLog; - struct gl_sl_pragmas Pragmas; - - unsigned Version; /**< GLSL version used for linking */ - - struct exec_list *ir; - struct glsl_symbol_table *symbols; - - /** Shaders containing built-in functions that are used for linking. */ - struct gl_shader *builtins_to_link[16]; - unsigned num_builtins_to_link; -}; - - -/** - * A GLSL program object. - * Basically a linked collection of vertex and fragment shaders. - */ -struct gl_shader_program -{ - GLenum Type; /**< Always GL_SHADER_PROGRAM (internal token) */ - GLuint Name; /**< aka handle or ID */ - GLint RefCount; /**< Reference count */ - GLboolean DeletePending; - - GLuint NumShaders; /**< number of attached shaders */ - struct gl_shader **Shaders; /**< List of attached the shaders */ - - /** User-defined attribute bindings (glBindAttribLocation) */ - struct gl_program_parameter_list *Attributes; - - /** Transform feedback varyings */ - struct { - GLenum BufferMode; - GLuint NumVarying; - GLchar **VaryingNames; /**< Array [NumVarying] of char * */ - } TransformFeedback; - - /** Geometry shader state - copied into gl_geometry_program at link time */ - struct { - GLint VerticesOut; - GLenum InputType; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB, - GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */ - GLenum OutputType; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */ - } Geom; - - /* post-link info: */ - struct gl_vertex_program *VertexProgram; /**< Linked vertex program */ - struct gl_fragment_program *FragmentProgram; /**< Linked fragment prog */ - struct gl_geometry_program *GeometryProgram; /**< Linked geometry prog */ - struct gl_uniform_list *Uniforms; - struct gl_program_parameter_list *Varying; - GLboolean LinkStatus; /**< GL_LINK_STATUS */ - GLboolean Validated; - GLboolean _Used; /**< Ever used for drawing? */ - GLchar *InfoLog; - - unsigned Version; /**< GLSL version used for linking */ - - /** - * Per-stage shaders resulting from the first stage of linking. - * - * Set of linked shaders for this program. The array is accessed using the - * \c MESA_SHADER_* defines. Entries for non-existent stages will be - * \c NULL. - */ - struct gl_shader *_LinkedShaders[MESA_SHADER_TYPES]; -}; - - -#define GLSL_DUMP 0x1 /**< Dump shaders to stdout */ -#define GLSL_LOG 0x2 /**< Write shaders to files */ -#define GLSL_OPT 0x4 /**< Force optimizations (override pragmas) */ -#define GLSL_NO_OPT 0x8 /**< Force no optimizations (override pragmas) */ -#define GLSL_UNIFORMS 0x10 /**< Print glUniform calls */ -#define GLSL_NOP_VERT 0x20 /**< Force no-op vertex shaders */ -#define GLSL_NOP_FRAG 0x40 /**< Force no-op fragment shaders */ -#define GLSL_USE_PROG 0x80 /**< Log glUseProgram calls */ - - -/** - * Context state for GLSL vertex/fragment shaders. - */ -struct gl_shader_state -{ - /** - * Programs used for rendering - * - * There is a separate program set for each shader stage. If - * GL_EXT_separate_shader_objects is not supported, each of these must point - * to \c NULL or to the same program. - */ - struct gl_shader_program *CurrentVertexProgram; - struct gl_shader_program *CurrentGeometryProgram; - struct gl_shader_program *CurrentFragmentProgram; - - /** - * Program used by glUniform calls. - * - * Explicitly set by \c glUseProgram and \c glActiveProgramEXT. - */ - struct gl_shader_program *ActiveProgram; - - void *MemPool; - - GLbitfield Flags; /**< Mask of GLSL_x flags */ -}; - -/** - * Compiler options for a single GLSL shaders type - */ -struct gl_shader_compiler_options -{ - /** Driver-selectable options: */ - GLboolean EmitCondCodes; /**< Use condition codes? */ - GLboolean EmitNVTempInitialization; /**< 0-fill NV temp registers */ - /** - * Attempts to flatten all ir_if (OPCODE_IF) for GPUs that can't - * support control flow. - */ - GLboolean EmitNoIfs; - GLboolean EmitNoLoops; - GLboolean EmitNoFunctions; - GLboolean EmitNoCont; /**< Emit CONT opcode? */ - GLboolean EmitNoMainReturn; /**< Emit CONT/RET opcodes? */ - GLboolean EmitNoNoise; /**< Emit NOISE opcodes? */ - GLboolean EmitNoPow; /**< Emit POW opcodes? */ - - /** - * \name Forms of indirect addressing the driver cannot do. - */ - /*@{*/ - GLboolean EmitNoIndirectInput; /**< No indirect addressing of inputs */ - GLboolean EmitNoIndirectOutput; /**< No indirect addressing of outputs */ - GLboolean EmitNoIndirectTemp; /**< No indirect addressing of temps */ - GLboolean EmitNoIndirectUniform; /**< No indirect addressing of constants */ - /*@}*/ - - GLuint MaxUnrollIterations; - - struct gl_sl_pragmas DefaultPragmas; /**< Default #pragma settings */ -}; - -/** - * Transform feedback object state - */ -struct gl_transform_feedback_object -{ - GLuint Name; /**< AKA the object ID */ - GLint RefCount; - GLboolean Active; /**< Is transform feedback enabled? */ - GLboolean Paused; /**< Is transform feedback paused? */ - - /** The feedback buffers */ - GLuint BufferNames[MAX_FEEDBACK_ATTRIBS]; - struct gl_buffer_object *Buffers[MAX_FEEDBACK_ATTRIBS]; - - /** Start of feedback data in dest buffer */ - GLintptr Offset[MAX_FEEDBACK_ATTRIBS]; - /** Max data to put into dest buffer (in bytes) */ - GLsizeiptr Size[MAX_FEEDBACK_ATTRIBS]; -}; - - -/** - * Context state for transform feedback. - */ -struct gl_transform_feedback -{ - GLenum Mode; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */ - - GLboolean RasterDiscard; /**< GL_RASTERIZER_DISCARD */ - - /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */ - struct gl_buffer_object *CurrentBuffer; - - /** The table of all transform feedback objects */ - struct _mesa_HashTable *Objects; - - /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */ - struct gl_transform_feedback_object *CurrentObject; - - /** The default xform-fb object (Name==0) */ - struct gl_transform_feedback_object *DefaultObject; -}; - - - -/** - * State which can be shared by multiple contexts: - */ -struct gl_shared_state -{ - _glthread_Mutex Mutex; /**< for thread safety */ - GLint RefCount; /**< Reference count */ - struct _mesa_HashTable *DisplayList; /**< Display lists hash table */ - struct _mesa_HashTable *TexObjects; /**< Texture objects hash table */ - - /** Default texture objects (shared by all texture units) */ - struct gl_texture_object *DefaultTex[NUM_TEXTURE_TARGETS]; - - /** Fallback texture used when a bound texture is incomplete */ - struct gl_texture_object *FallbackTex; - - /** - * \name Thread safety and statechange notification for texture - * objects. - * - * \todo Improve the granularity of locking. - */ - /*@{*/ - _glthread_Mutex TexMutex; /**< texobj thread safety */ - GLuint TextureStateStamp; /**< state notification for shared tex */ - /*@}*/ - - /** Default buffer object for vertex arrays that aren't in VBOs */ - struct gl_buffer_object *NullBufferObj; - - /** - * \name Vertex/geometry/fragment programs - */ - /*@{*/ - struct _mesa_HashTable *Programs; /**< All vertex/fragment programs */ - struct gl_vertex_program *DefaultVertexProgram; - struct gl_fragment_program *DefaultFragmentProgram; - struct gl_geometry_program *DefaultGeometryProgram; - /*@}*/ - - /* GL_ATI_fragment_shader */ - struct _mesa_HashTable *ATIShaders; - struct ati_fragment_shader *DefaultFragmentShader; - - struct _mesa_HashTable *BufferObjects; - - /** Table of both gl_shader and gl_shader_program objects */ - struct _mesa_HashTable *ShaderObjects; - - /* GL_EXT_framebuffer_object */ - struct _mesa_HashTable *RenderBuffers; - struct _mesa_HashTable *FrameBuffers; - - /* GL_ARB_sync */ - struct simple_node SyncObjects; - - void *DriverData; /**< Device driver shared state */ -}; - - - - -/** - * A renderbuffer stores colors or depth values or stencil values. - * A framebuffer object will have a collection of these. - * Data are read/written to the buffer with a handful of Get/Put functions. - * - * Instances of this object are allocated with the Driver's NewRenderbuffer - * hook. Drivers will likely wrap this class inside a driver-specific - * class to simulate inheritance. - */ -struct gl_renderbuffer -{ -#define RB_MAGIC 0xaabbccdd - int Magic; /** XXX TEMPORARY DEBUG INFO */ - _glthread_Mutex Mutex; /**< for thread safety */ - GLuint ClassID; /**< Useful for drivers */ - GLuint Name; - GLint RefCount; - GLuint Width, Height; - GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */ - - GLenum InternalFormat; /**< The user-specified format */ - GLenum _BaseFormat; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or - GL_STENCIL_INDEX. */ - gl_format Format; /**< The actual renderbuffer memory format */ - - GLubyte NumSamples; - - GLenum DataType; /**< Type of values passed to the Get/Put functions */ - GLvoid *Data; /**< This may not be used by some kinds of RBs */ - - GLboolean AttachedAnytime; /**< TRUE if it was attached to a framebuffer */ - - /* Used to wrap one renderbuffer around another: */ - struct gl_renderbuffer *Wrapped; - - /* Delete this renderbuffer */ - void (*Delete)(struct gl_renderbuffer *rb); - - /* Allocate new storage for this renderbuffer */ - GLboolean (*AllocStorage)(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLenum internalFormat, - GLuint width, GLuint height); - - /* Lock/Unlock are called before/after calling the Get/Put functions. - * Not sure this is the right place for these yet. - void (*Lock)(struct gl_context *ctx, struct gl_renderbuffer *rb); - void (*Unlock)(struct gl_context *ctx, struct gl_renderbuffer *rb); - */ - - /* Return a pointer to the element/pixel at (x,y). - * Should return NULL if the buffer memory can't be directly addressed. - */ - void *(*GetPointer)(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLint x, GLint y); - - /* Get/Read a row of values. - * The values will be of format _BaseFormat and type DataType. - */ - void (*GetRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, void *values); - - /* Get/Read values at arbitrary locations. - * The values will be of format _BaseFormat and type DataType. - */ - void (*GetValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], void *values); - - /* Put/Write a row of values. - * The values will be of format _BaseFormat and type DataType. - */ - void (*PutRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, const void *values, const GLubyte *mask); - - /* Put/Write a row of RGB values. This is a special-case routine that's - * only used for RGBA renderbuffers when the source data is GL_RGB. That's - * a common case for glDrawPixels and some triangle routines. - * The values will be of format GL_RGB and type DataType. - */ - void (*PutRowRGB)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, const void *values, const GLubyte *mask); - - - /* Put/Write a row of identical values. - * The values will be of format _BaseFormat and type DataType. - */ - void (*PutMonoRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, const void *value, const GLubyte *mask); - - /* Put/Write values at arbitrary locations. - * The values will be of format _BaseFormat and type DataType. - */ - void (*PutValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], const void *values, - const GLubyte *mask); - /* Put/Write identical values at arbitrary locations. - * The values will be of format _BaseFormat and type DataType. - */ - void (*PutMonoValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], - const void *value, const GLubyte *mask); -}; - - -/** - * A renderbuffer attachment points to either a texture object (and specifies - * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer. - */ -struct gl_renderbuffer_attachment -{ - GLenum Type; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */ - GLboolean Complete; - - /** - * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the - * application supplied renderbuffer object. - */ - struct gl_renderbuffer *Renderbuffer; - - /** - * If \c Type is \c GL_TEXTURE, this stores a pointer to the application - * supplied texture object. - */ - struct gl_texture_object *Texture; - GLuint TextureLevel; /**< Attached mipmap level. */ - GLuint CubeMapFace; /**< 0 .. 5, for cube map textures. */ - GLuint Zoffset; /**< Slice for 3D textures, or layer for both 1D - * and 2D array textures */ -}; - - -/** - * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc). - * In C++ terms, think of this as a base class from which device drivers - * will make derived classes. - */ -struct gl_framebuffer -{ - _glthread_Mutex Mutex; /**< for thread safety */ - /** - * If zero, this is a window system framebuffer. If non-zero, this - * is a FBO framebuffer; note that for some devices (i.e. those with - * a natural pixel coordinate system for FBOs that differs from the - * OpenGL/Mesa coordinate system), this means that the viewport, - * polygon face orientation, and polygon stipple will have to be inverted. - */ - GLuint Name; - - GLint RefCount; - GLboolean DeletePending; - - /** - * The framebuffer's visual. Immutable if this is a window system buffer. - * Computed from attachments if user-made FBO. - */ - struct gl_config Visual; - - GLboolean Initialized; - - GLuint Width, Height; /**< size of frame buffer in pixels */ - - /** \name Drawing bounds (Intersection of buffer size and scissor box) */ - /*@{*/ - GLint _Xmin, _Xmax; /**< inclusive */ - GLint _Ymin, _Ymax; /**< exclusive */ - /*@}*/ - - /** \name Derived Z buffer stuff */ - /*@{*/ - GLuint _DepthMax; /**< Max depth buffer value */ - GLfloat _DepthMaxF; /**< Float max depth buffer value */ - GLfloat _MRD; /**< minimum resolvable difference in Z values */ - /*@}*/ - - /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */ - GLenum _Status; - - /** Integer color values */ - GLboolean _IntegerColor; - - /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */ - struct gl_renderbuffer_attachment Attachment[BUFFER_COUNT]; - - /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER - * attribute group and GL_PIXEL attribute group, respectively. - */ - GLenum ColorDrawBuffer[MAX_DRAW_BUFFERS]; - GLenum ColorReadBuffer; - - /** Computed from ColorDraw/ReadBuffer above */ - GLuint _NumColorDrawBuffers; - GLint _ColorDrawBufferIndexes[MAX_DRAW_BUFFERS]; /**< BUFFER_x or -1 */ - GLint _ColorReadBufferIndex; /* -1 = None */ - struct gl_renderbuffer *_ColorDrawBuffers[MAX_DRAW_BUFFERS]; - struct gl_renderbuffer *_ColorReadBuffer; - - /** The Actual depth/stencil buffers to use. May be wrappers around the - * depth/stencil buffers attached above. */ - struct gl_renderbuffer *_DepthBuffer; - struct gl_renderbuffer *_StencilBuffer; - - /** Delete this framebuffer */ - void (*Delete)(struct gl_framebuffer *fb); -}; - - -/** - * Precision info for shader datatypes. See glGetShaderPrecisionFormat(). - */ -struct gl_precision -{ - GLushort RangeMin; /**< min value exponent */ - GLushort RangeMax; /**< max value exponent */ - GLushort Precision; /**< number of mantissa bits */ -}; - - -/** - * Limits for vertex and fragment programs/shaders. - */ -struct gl_program_constants -{ - /* logical limits */ - GLuint MaxInstructions; - GLuint MaxAluInstructions; - GLuint MaxTexInstructions; - GLuint MaxTexIndirections; - GLuint MaxAttribs; - GLuint MaxTemps; - GLuint MaxAddressRegs; - GLuint MaxAddressOffset; /**< [-MaxAddressOffset, MaxAddressOffset-1] */ - GLuint MaxParameters; - GLuint MaxLocalParams; - GLuint MaxEnvParams; - /* native/hardware limits */ - GLuint MaxNativeInstructions; - GLuint MaxNativeAluInstructions; - GLuint MaxNativeTexInstructions; - GLuint MaxNativeTexIndirections; - GLuint MaxNativeAttribs; - GLuint MaxNativeTemps; - GLuint MaxNativeAddressRegs; - GLuint MaxNativeParameters; - /* For shaders */ - GLuint MaxUniformComponents; - /* GL_ARB_geometry_shader4 */ - GLuint MaxGeometryTextureImageUnits; - GLuint MaxGeometryVaryingComponents; - GLuint MaxVertexVaryingComponents; - GLuint MaxGeometryUniformComponents; - GLuint MaxGeometryOutputVertices; - GLuint MaxGeometryTotalOutputComponents; - /* ES 2.0 and GL_ARB_ES2_compatibility */ - struct gl_precision LowFloat, MediumFloat, HighFloat; - struct gl_precision LowInt, MediumInt, HighInt; -}; - - -/** - * Constants which may be overridden by device driver during context creation - * but are never changed after that. - */ -struct gl_constants -{ - GLint MaxTextureMbytes; /**< Max memory per image, in MB */ - GLint MaxTextureLevels; /**< Max mipmap levels. */ - GLint Max3DTextureLevels; /**< Max mipmap levels for 3D textures */ - GLint MaxCubeTextureLevels; /**< Max mipmap levels for cube textures */ - GLint MaxArrayTextureLayers; /**< Max layers in array textures */ - GLint MaxTextureRectSize; /**< Max rectangle texture size, in pixes */ - GLuint MaxTextureCoordUnits; - GLuint MaxTextureImageUnits; - GLuint MaxVertexTextureImageUnits; - GLuint MaxCombinedTextureImageUnits; - GLuint MaxTextureUnits; /**< = MIN(CoordUnits, ImageUnits) */ - GLfloat MaxTextureMaxAnisotropy; /**< GL_EXT_texture_filter_anisotropic */ - GLfloat MaxTextureLodBias; /**< GL_EXT_texture_lod_bias */ - - GLuint MaxArrayLockSize; - - GLint SubPixelBits; - - GLfloat MinPointSize, MaxPointSize; /**< aliased */ - GLfloat MinPointSizeAA, MaxPointSizeAA; /**< antialiased */ - GLfloat PointSizeGranularity; - GLfloat MinLineWidth, MaxLineWidth; /**< aliased */ - GLfloat MinLineWidthAA, MaxLineWidthAA; /**< antialiased */ - GLfloat LineWidthGranularity; - - GLuint MaxColorTableSize; - - GLuint MaxClipPlanes; - GLuint MaxLights; - GLfloat MaxShininess; /**< GL_NV_light_max_exponent */ - GLfloat MaxSpotExponent; /**< GL_NV_light_max_exponent */ - - GLuint MaxViewportWidth, MaxViewportHeight; - - struct gl_program_constants VertexProgram; /**< GL_ARB_vertex_program */ - struct gl_program_constants FragmentProgram; /**< GL_ARB_fragment_program */ - struct gl_program_constants GeometryProgram; /**< GL_ARB_geometry_shader4 */ - GLuint MaxProgramMatrices; - GLuint MaxProgramMatrixStackDepth; - - /** vertex array / buffer object bounds checking */ - GLboolean CheckArrayBounds; - - GLuint MaxDrawBuffers; /**< GL_ARB_draw_buffers */ - - GLuint MaxColorAttachments; /**< GL_EXT_framebuffer_object */ - GLuint MaxRenderbufferSize; /**< GL_EXT_framebuffer_object */ - GLuint MaxSamples; /**< GL_ARB_framebuffer_object */ - - GLuint MaxVarying; /**< Number of float[4] varying parameters */ - - GLuint GLSLVersion; /**< GLSL version supported (ex: 120 = 1.20) */ - - /** Which texture units support GL_ATI_envmap_bumpmap as targets */ - GLbitfield SupportedBumpUnits; - - /** - * Maximum amount of time, measured in nanseconds, that the server can wait. - */ - GLuint64 MaxServerWaitTimeout; - - /** GL_EXT_provoking_vertex */ - GLboolean QuadsFollowProvokingVertexConvention; - - /** OpenGL version 3.0 */ - GLbitfield ContextFlags; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */ - - /** OpenGL version 3.2 */ - GLbitfield ProfileMask; /**< Mask of CONTEXT_x_PROFILE_BIT */ - - /** GL_EXT_transform_feedback */ - GLuint MaxTransformFeedbackSeparateAttribs; - GLuint MaxTransformFeedbackSeparateComponents; - GLuint MaxTransformFeedbackInterleavedComponents; - - /** GL_EXT_gpu_shader4 */ - GLint MinProgramTexelOffset, MaxProgramTexelOffset; - - /* GL_EXT_framebuffer_sRGB */ - GLboolean sRGBCapable; /* can enable sRGB blend/update on FBOs */ -}; - - -/** - * Enable flag for each OpenGL extension. Different device drivers will - * enable different extensions at runtime. - */ -struct gl_extensions -{ - GLboolean dummy; /* don't remove this! */ - GLboolean dummy_true; /* Set true by _mesa_init_extensions(). */ - GLboolean dummy_false; /* Set false by _mesa_init_extensions(). */ - GLboolean ARB_ES2_compatibility; - GLboolean ARB_blend_func_extended; - GLboolean ARB_copy_buffer; - GLboolean ARB_depth_buffer_float; - GLboolean ARB_depth_clamp; - GLboolean ARB_depth_texture; - GLboolean ARB_draw_buffers; - GLboolean ARB_draw_buffers_blend; - GLboolean ARB_draw_elements_base_vertex; - GLboolean ARB_draw_instanced; - GLboolean ARB_fragment_coord_conventions; - GLboolean ARB_fragment_program; - GLboolean ARB_fragment_program_shadow; - GLboolean ARB_fragment_shader; - GLboolean ARB_framebuffer_object; - GLboolean ARB_explicit_attrib_location; - GLboolean ARB_geometry_shader4; - GLboolean ARB_half_float_pixel; - GLboolean ARB_half_float_vertex; - GLboolean ARB_instanced_arrays; - GLboolean ARB_map_buffer_range; - GLboolean ARB_multisample; - GLboolean ARB_multitexture; - GLboolean ARB_occlusion_query; - GLboolean ARB_occlusion_query2; - GLboolean ARB_point_sprite; - GLboolean ARB_sampler_objects; - GLboolean ARB_seamless_cube_map; - GLboolean ARB_shader_objects; - GLboolean ARB_shader_stencil_export; - GLboolean ARB_shading_language_100; - GLboolean ARB_shadow; - GLboolean ARB_shadow_ambient; - GLboolean ARB_sync; - GLboolean ARB_texture_border_clamp; - GLboolean ARB_texture_buffer_object; - GLboolean ARB_texture_compression; - GLboolean ARB_texture_compression_rgtc; - GLboolean ARB_texture_cube_map; - GLboolean ARB_texture_env_combine; - GLboolean ARB_texture_env_crossbar; - GLboolean ARB_texture_env_dot3; - GLboolean ARB_texture_float; - GLboolean ARB_texture_mirrored_repeat; - GLboolean ARB_texture_multisample; - GLboolean ARB_texture_non_power_of_two; - GLboolean ARB_texture_rg; - GLboolean ARB_texture_rgb10_a2ui; - GLboolean ARB_timer_query; - GLboolean ARB_transform_feedback2; - GLboolean ARB_transpose_matrix; - GLboolean ARB_uniform_buffer_object; - GLboolean ARB_vertex_array_object; - GLboolean ARB_vertex_buffer_object; - GLboolean ARB_vertex_program; - GLboolean ARB_vertex_shader; - GLboolean ARB_vertex_type_2_10_10_10_rev; - GLboolean ARB_window_pos; - GLboolean EXT_abgr; - GLboolean EXT_bgra; - GLboolean EXT_blend_color; - GLboolean EXT_blend_equation_separate; - GLboolean EXT_blend_func_separate; - GLboolean EXT_blend_logic_op; - GLboolean EXT_blend_minmax; - GLboolean EXT_blend_subtract; - GLboolean EXT_clip_volume_hint; - GLboolean EXT_compiled_vertex_array; - GLboolean EXT_copy_texture; - GLboolean EXT_depth_bounds_test; - GLboolean EXT_draw_buffers2; - GLboolean EXT_draw_range_elements; - GLboolean EXT_fog_coord; - GLboolean EXT_framebuffer_blit; - GLboolean EXT_framebuffer_multisample; - GLboolean EXT_framebuffer_object; - GLboolean EXT_framebuffer_sRGB; - GLboolean EXT_gpu_program_parameters; - GLboolean EXT_gpu_shader4; - GLboolean EXT_multi_draw_arrays; - GLboolean EXT_paletted_texture; - GLboolean EXT_packed_depth_stencil; - GLboolean EXT_packed_float; - GLboolean EXT_packed_pixels; - GLboolean EXT_pixel_buffer_object; - GLboolean EXT_point_parameters; - GLboolean EXT_polygon_offset; - GLboolean EXT_provoking_vertex; - GLboolean EXT_rescale_normal; - GLboolean EXT_shadow_funcs; - GLboolean EXT_secondary_color; - GLboolean EXT_separate_shader_objects; - GLboolean EXT_separate_specular_color; - GLboolean EXT_shared_texture_palette; - GLboolean EXT_stencil_wrap; - GLboolean EXT_stencil_two_side; - GLboolean EXT_subtexture; - GLboolean EXT_texture; - GLboolean EXT_texture_object; - GLboolean EXT_texture3D; - GLboolean EXT_texture_array; - GLboolean EXT_texture_compression_latc; - GLboolean EXT_texture_compression_s3tc; - GLboolean EXT_texture_env_add; - GLboolean EXT_texture_env_combine; - GLboolean EXT_texture_env_dot3; - GLboolean EXT_texture_filter_anisotropic; - GLboolean EXT_texture_integer; - GLboolean EXT_texture_lod_bias; - GLboolean EXT_texture_mirror_clamp; - GLboolean EXT_texture_shared_exponent; - GLboolean EXT_texture_sRGB; - GLboolean EXT_texture_sRGB_decode; - GLboolean EXT_texture_swizzle; - GLboolean EXT_transform_feedback; - GLboolean EXT_timer_query; - GLboolean EXT_vertex_array; - GLboolean EXT_vertex_array_bgra; - GLboolean EXT_vertex_array_set; - GLboolean OES_standard_derivatives; - /* vendor extensions */ - GLboolean AMD_conservative_depth; - GLboolean APPLE_client_storage; - GLboolean APPLE_packed_pixels; - GLboolean APPLE_vertex_array_object; - GLboolean APPLE_object_purgeable; - GLboolean ATI_envmap_bumpmap; - GLboolean ATI_texture_compression_3dc; - GLboolean ATI_texture_mirror_once; - GLboolean ATI_texture_env_combine3; - GLboolean ATI_fragment_shader; - GLboolean ATI_separate_stencil; - GLboolean IBM_rasterpos_clip; - GLboolean IBM_multimode_draw_arrays; - GLboolean MESA_pack_invert; - GLboolean MESA_resize_buffers; - GLboolean MESA_ycbcr_texture; - GLboolean MESA_texture_array; - GLboolean MESA_texture_signed_rgba; - GLboolean NV_blend_square; - GLboolean NV_conditional_render; - GLboolean NV_fragment_program; - GLboolean NV_fragment_program_option; - GLboolean NV_light_max_exponent; - GLboolean NV_point_sprite; - GLboolean NV_primitive_restart; - GLboolean NV_texgen_reflection; - GLboolean NV_texture_env_combine4; - GLboolean NV_texture_rectangle; - GLboolean NV_vertex_program; - GLboolean NV_vertex_program1_1; - GLboolean OES_read_format; - GLboolean SGIS_generate_mipmap; - GLboolean SGIS_texture_edge_clamp; - GLboolean SGIS_texture_lod; - GLboolean TDFX_texture_compression_FXT1; - GLboolean S3_s3tc; - GLboolean OES_EGL_image; - GLboolean OES_draw_texture; - GLboolean EXT_texture_format_BGRA8888; - GLboolean extension_sentinel; - /** The extension string */ - const GLubyte *String; - /** Number of supported extensions */ - GLuint Count; -}; - - -/** - * A stack of matrices (projection, modelview, color, texture, etc). - */ -struct gl_matrix_stack -{ - GLmatrix *Top; /**< points into Stack */ - GLmatrix *Stack; /**< array [MaxDepth] of GLmatrix */ - GLuint Depth; /**< 0 <= Depth < MaxDepth */ - GLuint MaxDepth; /**< size of Stack[] array */ - GLuint DirtyFlag; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */ -}; - - -/** - * \name Bits for image transfer operations - * \sa __struct gl_contextRec::ImageTransferState. - */ -/*@{*/ -#define IMAGE_SCALE_BIAS_BIT 0x1 -#define IMAGE_SHIFT_OFFSET_BIT 0x2 -#define IMAGE_MAP_COLOR_BIT 0x4 -#define IMAGE_CLAMP_BIT 0x800 - - -/** Pixel Transfer ops */ -#define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \ - IMAGE_SHIFT_OFFSET_BIT | \ - IMAGE_MAP_COLOR_BIT) - -/** - * \name Bits to indicate what state has changed. - */ -/*@{*/ -#define _NEW_MODELVIEW (1 << 0) /**< gl_context::ModelView */ -#define _NEW_PROJECTION (1 << 1) /**< gl_context::Projection */ -#define _NEW_TEXTURE_MATRIX (1 << 2) /**< gl_context::TextureMatrix */ -#define _NEW_COLOR (1 << 3) /**< gl_context::Color */ -#define _NEW_DEPTH (1 << 4) /**< gl_context::Depth */ -#define _NEW_EVAL (1 << 5) /**< gl_context::Eval, EvalMap */ -#define _NEW_FOG (1 << 6) /**< gl_context::Fog */ -#define _NEW_HINT (1 << 7) /**< gl_context::Hint */ -#define _NEW_LIGHT (1 << 8) /**< gl_context::Light */ -#define _NEW_LINE (1 << 9) /**< gl_context::Line */ -#define _NEW_PIXEL (1 << 10) /**< gl_context::Pixel */ -#define _NEW_POINT (1 << 11) /**< gl_context::Point */ -#define _NEW_POLYGON (1 << 12) /**< gl_context::Polygon */ -#define _NEW_POLYGONSTIPPLE (1 << 13) /**< gl_context::PolygonStipple */ -#define _NEW_SCISSOR (1 << 14) /**< gl_context::Scissor */ -#define _NEW_STENCIL (1 << 15) /**< gl_context::Stencil */ -#define _NEW_TEXTURE (1 << 16) /**< gl_context::Texture */ -#define _NEW_TRANSFORM (1 << 17) /**< gl_context::Transform */ -#define _NEW_VIEWPORT (1 << 18) /**< gl_context::Viewport */ -#define _NEW_PACKUNPACK (1 << 19) /**< gl_context::Pack, Unpack */ -#define _NEW_ARRAY (1 << 20) /**< gl_context::Array */ -#define _NEW_RENDERMODE (1 << 21) /**< gl_context::RenderMode, etc */ -#define _NEW_BUFFERS (1 << 22) /**< gl_context::Visual, DrawBuffer, */ -#define _NEW_CURRENT_ATTRIB (1 << 23) /**< gl_context::Current */ -#define _NEW_MULTISAMPLE (1 << 24) /**< gl_context::Multisample */ -#define _NEW_TRACK_MATRIX (1 << 25) /**< gl_context::VertexProgram */ -#define _NEW_PROGRAM (1 << 26) /**< New program/shader state */ -#define _NEW_PROGRAM_CONSTANTS (1 << 27) -#define _NEW_BUFFER_OBJECT (1 << 28) -#define _NEW_ALL ~0 -/*@}*/ - - -/** - * \name Bits to track array state changes - * - * Also used to summarize array enabled. - */ -/*@{*/ -#define _NEW_ARRAY_VERTEX VERT_BIT_POS -#define _NEW_ARRAY_WEIGHT VERT_BIT_WEIGHT -#define _NEW_ARRAY_NORMAL VERT_BIT_NORMAL -#define _NEW_ARRAY_COLOR0 VERT_BIT_COLOR0 -#define _NEW_ARRAY_COLOR1 VERT_BIT_COLOR1 -#define _NEW_ARRAY_FOGCOORD VERT_BIT_FOG -#define _NEW_ARRAY_INDEX VERT_BIT_COLOR_INDEX -#define _NEW_ARRAY_EDGEFLAG VERT_BIT_EDGEFLAG -#define _NEW_ARRAY_POINT_SIZE VERT_BIT_COLOR_INDEX /* aliased */ -#define _NEW_ARRAY_TEXCOORD_0 VERT_BIT_TEX0 -#define _NEW_ARRAY_TEXCOORD_1 VERT_BIT_TEX1 -#define _NEW_ARRAY_TEXCOORD_2 VERT_BIT_TEX2 -#define _NEW_ARRAY_TEXCOORD_3 VERT_BIT_TEX3 -#define _NEW_ARRAY_TEXCOORD_4 VERT_BIT_TEX4 -#define _NEW_ARRAY_TEXCOORD_5 VERT_BIT_TEX5 -#define _NEW_ARRAY_TEXCOORD_6 VERT_BIT_TEX6 -#define _NEW_ARRAY_TEXCOORD_7 VERT_BIT_TEX7 -#define _NEW_ARRAY_ATTRIB_0 VERT_BIT_GENERIC0 /* start at bit 16 */ -#define _NEW_ARRAY_ALL 0xffffffff - - -#define _NEW_ARRAY_TEXCOORD(i) (_NEW_ARRAY_TEXCOORD_0 << (i)) -#define _NEW_ARRAY_ATTRIB(i) (_NEW_ARRAY_ATTRIB_0 << (i)) -/*@}*/ - - - -/** - * \name A bunch of flags that we think might be useful to drivers. - * - * Set in the __struct gl_contextRec::_TriangleCaps bitfield. - */ -/*@{*/ -#define DD_FLATSHADE 0x1 -#define DD_SEPARATE_SPECULAR 0x2 -#define DD_TRI_CULL_FRONT_BACK 0x4 /* special case on some hw */ -#define DD_TRI_LIGHT_TWOSIDE 0x8 -#define DD_TRI_UNFILLED 0x10 -#define DD_TRI_SMOOTH 0x20 -#define DD_TRI_STIPPLE 0x40 -#define DD_TRI_OFFSET 0x80 -#define DD_LINE_SMOOTH 0x100 -#define DD_LINE_STIPPLE 0x200 -#define DD_POINT_SMOOTH 0x400 -#define DD_POINT_ATTEN 0x800 -#define DD_TRI_TWOSTENCIL 0x1000 -/*@}*/ - - -/** - * \name Define the state changes under which each of these bits might change - */ -/*@{*/ -#define _DD_NEW_FLATSHADE _NEW_LIGHT -#define _DD_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | _NEW_FOG | _NEW_PROGRAM) -#define _DD_NEW_TRI_CULL_FRONT_BACK _NEW_POLYGON -#define _DD_NEW_TRI_LIGHT_TWOSIDE _NEW_LIGHT -#define _DD_NEW_TRI_UNFILLED _NEW_POLYGON -#define _DD_NEW_TRI_SMOOTH _NEW_POLYGON -#define _DD_NEW_TRI_STIPPLE _NEW_POLYGON -#define _DD_NEW_TRI_OFFSET _NEW_POLYGON -#define _DD_NEW_LINE_SMOOTH _NEW_LINE -#define _DD_NEW_LINE_STIPPLE _NEW_LINE -#define _DD_NEW_LINE_WIDTH _NEW_LINE -#define _DD_NEW_POINT_SMOOTH _NEW_POINT -#define _DD_NEW_POINT_SIZE _NEW_POINT -#define _DD_NEW_POINT_ATTEN _NEW_POINT -/*@}*/ - - -/** - * Composite state flags - */ -/*@{*/ -#define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \ - _NEW_TEXTURE | \ - _NEW_POINT | \ - _NEW_PROGRAM | \ - _NEW_MODELVIEW) - -#define _MESA_NEW_NEED_NORMALS (_NEW_LIGHT | \ - _NEW_TEXTURE) - -#define _MESA_NEW_TRANSFER_STATE (_NEW_PIXEL) -/*@}*/ - - - - -/* This has to be included here. */ -#include "dd.h" - - -/** - * Display list flags. - * Strictly this is a tnl-private concept, but it doesn't seem - * worthwhile adding a tnl private structure just to hold this one bit - * of information: - */ -#define DLIST_DANGLING_REFS 0x1 - - -/** Opaque declaration of display list payload data type */ -union gl_dlist_node; - - -/** - * Provide a location where information about a display list can be - * collected. Could be extended with driverPrivate structures, - * etc. in the future. - */ -struct gl_display_list -{ - GLuint Name; - GLbitfield Flags; /**< DLIST_x flags */ - /** The dlist commands are in a linked list of nodes */ - union gl_dlist_node *Head; -}; - - -/** - * State used during display list compilation and execution. - */ -struct gl_dlist_state -{ - GLuint CallDepth; /**< Current recursion calling depth */ - - struct gl_display_list *CurrentList; /**< List currently being compiled */ - union gl_dlist_node *CurrentBlock; /**< Pointer to current block of nodes */ - GLuint CurrentPos; /**< Index into current block of nodes */ - - GLvertexformat ListVtxfmt; - - GLubyte ActiveAttribSize[VERT_ATTRIB_MAX]; - GLfloat CurrentAttrib[VERT_ATTRIB_MAX][4]; - - GLubyte ActiveMaterialSize[MAT_ATTRIB_MAX]; - GLfloat CurrentMaterial[MAT_ATTRIB_MAX][4]; - - GLubyte ActiveIndex; - GLfloat CurrentIndex; - - GLubyte ActiveEdgeFlag; - GLboolean CurrentEdgeFlag; - - struct { - /* State known to have been set by the currently-compiling display - * list. Used to eliminate some redundant state changes. - */ - GLenum ShadeModel; - } Current; -}; - - -/** - * Enum for the OpenGL APIs we know about and may support. - */ -typedef enum -{ - API_OPENGL, - API_OPENGLES, - API_OPENGLES2 -} gl_api; - - -/** - * Mesa rendering context. - * - * This is the central context data structure for Mesa. Almost all - * OpenGL state is contained in this structure. - * Think of this as a base class from which device drivers will derive - * sub classes. - * - * The struct gl_context typedef names this structure. - */ -struct gl_context -{ - /** State possibly shared with other contexts in the address space */ - struct gl_shared_state *Shared; - - /** \name API function pointer tables */ - /*@{*/ - gl_api API; - struct _glapi_table *Save; /**< Display list save functions */ - struct _glapi_table *Exec; /**< Execute functions */ - struct _glapi_table *CurrentDispatch; /**< == Save or Exec !! */ - /*@}*/ - - struct gl_config Visual; - struct gl_framebuffer *DrawBuffer; /**< buffer for writing */ - struct gl_framebuffer *ReadBuffer; /**< buffer for reading */ - struct gl_framebuffer *WinSysDrawBuffer; /**< set with MakeCurrent */ - struct gl_framebuffer *WinSysReadBuffer; /**< set with MakeCurrent */ - - /** - * Device driver function pointer table - */ - struct dd_function_table Driver; - - void *DriverCtx; /**< Points to device driver context/state */ - - /** Core/Driver constants */ - struct gl_constants Const; - - /** \name The various 4x4 matrix stacks */ - /*@{*/ - struct gl_matrix_stack ModelviewMatrixStack; - struct gl_matrix_stack ProjectionMatrixStack; - struct gl_matrix_stack TextureMatrixStack[MAX_TEXTURE_UNITS]; - struct gl_matrix_stack ProgramMatrixStack[MAX_PROGRAM_MATRICES]; - struct gl_matrix_stack *CurrentStack; /**< Points to one of the above stacks */ - /*@}*/ - - /** Combined modelview and projection matrix */ - GLmatrix _ModelProjectMatrix; - - /** \name Display lists */ - struct gl_dlist_state ListState; - - GLboolean ExecuteFlag; /**< Execute GL commands? */ - GLboolean CompileFlag; /**< Compile GL commands into display list? */ - - /** Extension information */ - struct gl_extensions Extensions; - - /** Version info */ - GLuint VersionMajor, VersionMinor; - char *VersionString; - - /** \name State attribute stack (for glPush/PopAttrib) */ - /*@{*/ - GLuint AttribStackDepth; - struct gl_attrib_node *AttribStack[MAX_ATTRIB_STACK_DEPTH]; - /*@}*/ - - /** \name Renderer attribute groups - * - * We define a struct for each attribute group to make pushing and popping - * attributes easy. Also it's a good organization. - */ - /*@{*/ - struct gl_accum_attrib Accum; /**< Accum buffer attributes */ - struct gl_colorbuffer_attrib Color; /**< Color buffer attributes */ - struct gl_current_attrib Current; /**< Current attributes */ - struct gl_depthbuffer_attrib Depth; /**< Depth buffer attributes */ - struct gl_eval_attrib Eval; /**< Eval attributes */ - struct gl_fog_attrib Fog; /**< Fog attributes */ - struct gl_hint_attrib Hint; /**< Hint attributes */ - struct gl_light_attrib Light; /**< Light attributes */ - struct gl_line_attrib Line; /**< Line attributes */ - struct gl_list_attrib List; /**< List attributes */ - struct gl_multisample_attrib Multisample; - struct gl_pixel_attrib Pixel; /**< Pixel attributes */ - struct gl_point_attrib Point; /**< Point attributes */ - struct gl_polygon_attrib Polygon; /**< Polygon attributes */ - GLuint PolygonStipple[32]; /**< Polygon stipple */ - struct gl_scissor_attrib Scissor; /**< Scissor attributes */ - struct gl_stencil_attrib Stencil; /**< Stencil buffer attributes */ - struct gl_texture_attrib Texture; /**< Texture attributes */ - struct gl_transform_attrib Transform; /**< Transformation attributes */ - struct gl_viewport_attrib Viewport; /**< Viewport attributes */ - /*@}*/ - - /** \name Client attribute stack */ - /*@{*/ - GLuint ClientAttribStackDepth; - struct gl_attrib_node *ClientAttribStack[MAX_CLIENT_ATTRIB_STACK_DEPTH]; - /*@}*/ - - /** \name Client attribute groups */ - /*@{*/ - struct gl_array_attrib Array; /**< Vertex arrays */ - struct gl_pixelstore_attrib Pack; /**< Pixel packing */ - struct gl_pixelstore_attrib Unpack; /**< Pixel unpacking */ - struct gl_pixelstore_attrib DefaultPacking; /**< Default params */ - /*@}*/ - - /** \name Other assorted state (not pushed/popped on attribute stack) */ - /*@{*/ - struct gl_pixelmaps PixelMaps; - - struct gl_evaluators EvalMap; /**< All evaluators */ - struct gl_feedback Feedback; /**< Feedback */ - struct gl_selection Select; /**< Selection */ - - struct gl_program_state Program; /**< general program state */ - struct gl_vertex_program_state VertexProgram; - struct gl_fragment_program_state FragmentProgram; - struct gl_geometry_program_state GeometryProgram; - struct gl_ati_fragment_shader_state ATIFragmentShader; - - struct gl_shader_state Shader; /**< GLSL shader object state */ - struct gl_shader_compiler_options ShaderCompilerOptions[MESA_SHADER_TYPES]; - - struct gl_query_state Query; /**< occlusion, timer queries */ - - struct gl_transform_feedback TransformFeedback; - - struct gl_buffer_object *CopyReadBuffer; /**< GL_ARB_copy_buffer */ - struct gl_buffer_object *CopyWriteBuffer; /**< GL_ARB_copy_buffer */ - /*@}*/ - - struct gl_meta_state *Meta; /**< for "meta" operations */ - - /* GL_EXT_framebuffer_object */ - struct gl_renderbuffer *CurrentRenderbuffer; - - GLenum ErrorValue; /**< Last error code */ - - /** - * Recognize and silence repeated error debug messages in buggy apps. - */ - const char *ErrorDebugFmtString; - GLuint ErrorDebugCount; - - GLenum RenderMode; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */ - GLbitfield NewState; /**< bitwise-or of _NEW_* flags */ - - GLboolean ViewportInitialized; /**< has viewport size been initialized? */ - - GLbitfield varying_vp_inputs; /**< mask of VERT_BIT_* flags */ - - /** \name Derived state */ - /*@{*/ - /** Bitwise-or of DD_* flags. Note that this bitfield may be used before - * state validation so they need to always be current. - */ - GLbitfield _TriangleCaps; - GLbitfield _ImageTransferState;/**< bitwise-or of IMAGE_*_BIT flags */ - GLfloat _EyeZDir[3]; - GLfloat _ModelViewInvScale; - GLboolean _NeedEyeCoords; - GLboolean _ForceEyeCoords; - - GLuint TextureStateTimestamp; /**< detect changes to shared state */ - - struct gl_shine_tab *_ShineTable[2]; /**< Active shine tables */ - struct gl_shine_tab *_ShineTabList; /**< MRU list of inactive shine tables */ - /**@}*/ - - struct gl_list_extensions *ListExt; /**< driver dlist extensions */ - - /** \name For debugging/development only */ - /*@{*/ - GLboolean FirstTimeCurrent; - /*@}*/ - - /** software compression/decompression supported or not */ - GLboolean Mesa_DXTn; - - GLboolean TextureFormatSupported[MESA_FORMAT_COUNT]; - - /** - * Use dp4 (rather than mul/mad) instructions for position - * transformation? - */ - GLboolean mvp_with_dp4; - - /** - * \name Hooks for module contexts. - * - * These will eventually live in the driver or elsewhere. - */ - /*@{*/ - void *swrast_context; - void *swsetup_context; - void *swtnl_context; - void *swtnl_im; - struct st_context *st; - void *aelt_context; - /*@}*/ -}; - - -#ifdef DEBUG -extern int MESA_VERBOSE; -extern int MESA_DEBUG_FLAGS; -# define MESA_FUNCTION __FUNCTION__ -#else -# define MESA_VERBOSE 0 -# define MESA_DEBUG_FLAGS 0 -# define MESA_FUNCTION "a function" -# ifndef NDEBUG -# define NDEBUG -# endif -#endif - - -/** The MESA_VERBOSE var is a bitmask of these flags */ -enum _verbose -{ - VERBOSE_VARRAY = 0x0001, - VERBOSE_TEXTURE = 0x0002, - VERBOSE_MATERIAL = 0x0004, - VERBOSE_PIPELINE = 0x0008, - VERBOSE_DRIVER = 0x0010, - VERBOSE_STATE = 0x0020, - VERBOSE_API = 0x0040, - VERBOSE_DISPLAY_LIST = 0x0100, - VERBOSE_LIGHTING = 0x0200, - VERBOSE_PRIMS = 0x0400, - VERBOSE_VERTS = 0x0800, - VERBOSE_DISASSEM = 0x1000, - VERBOSE_DRAW = 0x2000, - VERBOSE_SWAPBUFFERS = 0x4000 -}; - - -/** The MESA_DEBUG_FLAGS var is a bitmask of these flags */ -enum _debug -{ - DEBUG_ALWAYS_FLUSH = 0x1 -}; - - - -#endif /* MTYPES_H */ +/* + * Mesa 3-D graphics library + * Version: 7.7 + * + * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file mtypes.h + * Main Mesa data structures. + * + * Please try to mark derived values with a leading underscore ('_'). + */ + +#ifndef MTYPES_H +#define MTYPES_H + + +#include "main/glheader.h" +#include "main/config.h" +#include "main/mfeatures.h" +#include "glapi/glapi.h" +#include "math/m_matrix.h" /* GLmatrix */ +#include "main/simple_list.h" /* struct simple_node */ +#include "main/formats.h" /* MESA_FORMAT_COUNT */ + + +/** + * Color channel data type. + */ +#if CHAN_BITS == 8 + typedef GLubyte GLchan; +#define CHAN_MAX 255 +#define CHAN_MAXF 255.0F +#define CHAN_TYPE GL_UNSIGNED_BYTE +#elif CHAN_BITS == 16 + typedef GLushort GLchan; +#define CHAN_MAX 65535 +#define CHAN_MAXF 65535.0F +#define CHAN_TYPE GL_UNSIGNED_SHORT +#elif CHAN_BITS == 32 + typedef GLfloat GLchan; +#define CHAN_MAX 1.0 +#define CHAN_MAXF 1.0F +#define CHAN_TYPE GL_FLOAT +#else +#error "illegal number of color channel bits" +#endif + + +/** + * Stencil buffer data type. + */ +#if STENCIL_BITS==8 + typedef GLubyte GLstencil; +#elif STENCIL_BITS==16 + typedef GLushort GLstencil; +#else +# error "illegal number of stencil bits" +#endif + + +/** + * \name 64-bit extension of GLbitfield. + */ +/*@{*/ +typedef GLuint64 GLbitfield64; + +/** Set a single bit */ +#define BITFIELD64_BIT(b) (1ULL << (b)) + + +/** + * \name Some forward type declarations + */ +/*@{*/ +struct _mesa_HashTable; +struct gl_attrib_node; +struct gl_list_extensions; +struct gl_meta_state; +struct gl_pixelstore_attrib; +struct gl_program_cache; +struct gl_texture_format; +struct gl_texture_image; +struct gl_texture_object; +struct gl_context; +struct st_context; +/*@}*/ + + +/** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */ +#define PRIM_OUTSIDE_BEGIN_END (GL_POLYGON+1) +#define PRIM_INSIDE_UNKNOWN_PRIM (GL_POLYGON+2) +#define PRIM_UNKNOWN (GL_POLYGON+3) + + +/** + * Shader stages. Note that these will become 5 with tessellation. + * These MUST have the same values as gallium's PIPE_SHADER_* + */ +typedef enum +{ + MESA_SHADER_VERTEX = 0, + MESA_SHADER_FRAGMENT = 1, + MESA_SHADER_GEOMETRY = 2, + MESA_SHADER_TYPES = 3 +} gl_shader_type; + + + +/** + * Indexes for vertex program attributes. + * GL_NV_vertex_program aliases generic attributes over the conventional + * attributes. In GL_ARB_vertex_program shader the aliasing is optional. + * In GL_ARB_vertex_shader / OpenGL 2.0 the aliasing is disallowed (the + * generic attributes are distinct/separate). + */ +typedef enum +{ + VERT_ATTRIB_POS = 0, + VERT_ATTRIB_WEIGHT = 1, + VERT_ATTRIB_NORMAL = 2, + VERT_ATTRIB_COLOR0 = 3, + VERT_ATTRIB_COLOR1 = 4, + VERT_ATTRIB_FOG = 5, + VERT_ATTRIB_COLOR_INDEX = 6, + VERT_ATTRIB_POINT_SIZE = 6, /*alias*/ + VERT_ATTRIB_EDGEFLAG = 7, + VERT_ATTRIB_TEX0 = 8, + VERT_ATTRIB_TEX1 = 9, + VERT_ATTRIB_TEX2 = 10, + VERT_ATTRIB_TEX3 = 11, + VERT_ATTRIB_TEX4 = 12, + VERT_ATTRIB_TEX5 = 13, + VERT_ATTRIB_TEX6 = 14, + VERT_ATTRIB_TEX7 = 15, + VERT_ATTRIB_GENERIC0 = 16, + VERT_ATTRIB_GENERIC1 = 17, + VERT_ATTRIB_GENERIC2 = 18, + VERT_ATTRIB_GENERIC3 = 19, + VERT_ATTRIB_GENERIC4 = 20, + VERT_ATTRIB_GENERIC5 = 21, + VERT_ATTRIB_GENERIC6 = 22, + VERT_ATTRIB_GENERIC7 = 23, + VERT_ATTRIB_GENERIC8 = 24, + VERT_ATTRIB_GENERIC9 = 25, + VERT_ATTRIB_GENERIC10 = 26, + VERT_ATTRIB_GENERIC11 = 27, + VERT_ATTRIB_GENERIC12 = 28, + VERT_ATTRIB_GENERIC13 = 29, + VERT_ATTRIB_GENERIC14 = 30, + VERT_ATTRIB_GENERIC15 = 31, + VERT_ATTRIB_MAX = 32 +} gl_vert_attrib; + +/** + * Bitflags for vertex attributes. + * These are used in bitfields in many places. + */ +/*@{*/ +#define VERT_BIT_POS (1 << VERT_ATTRIB_POS) +#define VERT_BIT_WEIGHT (1 << VERT_ATTRIB_WEIGHT) +#define VERT_BIT_NORMAL (1 << VERT_ATTRIB_NORMAL) +#define VERT_BIT_COLOR0 (1 << VERT_ATTRIB_COLOR0) +#define VERT_BIT_COLOR1 (1 << VERT_ATTRIB_COLOR1) +#define VERT_BIT_FOG (1 << VERT_ATTRIB_FOG) +#define VERT_BIT_COLOR_INDEX (1 << VERT_ATTRIB_COLOR_INDEX) +#define VERT_BIT_EDGEFLAG (1 << VERT_ATTRIB_EDGEFLAG) +#define VERT_BIT_TEX0 (1 << VERT_ATTRIB_TEX0) +#define VERT_BIT_TEX1 (1 << VERT_ATTRIB_TEX1) +#define VERT_BIT_TEX2 (1 << VERT_ATTRIB_TEX2) +#define VERT_BIT_TEX3 (1 << VERT_ATTRIB_TEX3) +#define VERT_BIT_TEX4 (1 << VERT_ATTRIB_TEX4) +#define VERT_BIT_TEX5 (1 << VERT_ATTRIB_TEX5) +#define VERT_BIT_TEX6 (1 << VERT_ATTRIB_TEX6) +#define VERT_BIT_TEX7 (1 << VERT_ATTRIB_TEX7) +#define VERT_BIT_GENERIC0 (1 << VERT_ATTRIB_GENERIC0) +#define VERT_BIT_GENERIC1 (1 << VERT_ATTRIB_GENERIC1) +#define VERT_BIT_GENERIC2 (1 << VERT_ATTRIB_GENERIC2) +#define VERT_BIT_GENERIC3 (1 << VERT_ATTRIB_GENERIC3) +#define VERT_BIT_GENERIC4 (1 << VERT_ATTRIB_GENERIC4) +#define VERT_BIT_GENERIC5 (1 << VERT_ATTRIB_GENERIC5) +#define VERT_BIT_GENERIC6 (1 << VERT_ATTRIB_GENERIC6) +#define VERT_BIT_GENERIC7 (1 << VERT_ATTRIB_GENERIC7) +#define VERT_BIT_GENERIC8 (1 << VERT_ATTRIB_GENERIC8) +#define VERT_BIT_GENERIC9 (1 << VERT_ATTRIB_GENERIC9) +#define VERT_BIT_GENERIC10 (1 << VERT_ATTRIB_GENERIC10) +#define VERT_BIT_GENERIC11 (1 << VERT_ATTRIB_GENERIC11) +#define VERT_BIT_GENERIC12 (1 << VERT_ATTRIB_GENERIC12) +#define VERT_BIT_GENERIC13 (1 << VERT_ATTRIB_GENERIC13) +#define VERT_BIT_GENERIC14 (1 << VERT_ATTRIB_GENERIC14) +#define VERT_BIT_GENERIC15 (1 << VERT_ATTRIB_GENERIC15) + +#define VERT_BIT_TEX(u) (1 << (VERT_ATTRIB_TEX0 + (u))) +#define VERT_BIT_GENERIC(g) (1 << (VERT_ATTRIB_GENERIC0 + (g))) +/*@}*/ + + +/** + * Indexes for vertex program result attributes + */ +typedef enum +{ + VERT_RESULT_HPOS = 0, + VERT_RESULT_COL0 = 1, + VERT_RESULT_COL1 = 2, + VERT_RESULT_FOGC = 3, + VERT_RESULT_TEX0 = 4, + VERT_RESULT_TEX1 = 5, + VERT_RESULT_TEX2 = 6, + VERT_RESULT_TEX3 = 7, + VERT_RESULT_TEX4 = 8, + VERT_RESULT_TEX5 = 9, + VERT_RESULT_TEX6 = 10, + VERT_RESULT_TEX7 = 11, + VERT_RESULT_PSIZ = 12, + VERT_RESULT_BFC0 = 13, + VERT_RESULT_BFC1 = 14, + VERT_RESULT_EDGE = 15, + VERT_RESULT_VAR0 = 16, /**< shader varying */ + VERT_RESULT_MAX = (VERT_RESULT_VAR0 + MAX_VARYING) +} gl_vert_result; + + +/*********************************************/ + +/** + * Indexes for geometry program attributes. + */ +typedef enum +{ + GEOM_ATTRIB_POSITION = 0, + GEOM_ATTRIB_COLOR0 = 1, + GEOM_ATTRIB_COLOR1 = 2, + GEOM_ATTRIB_SECONDARY_COLOR0 = 3, + GEOM_ATTRIB_SECONDARY_COLOR1 = 4, + GEOM_ATTRIB_FOG_FRAG_COORD = 5, + GEOM_ATTRIB_POINT_SIZE = 6, + GEOM_ATTRIB_CLIP_VERTEX = 7, + GEOM_ATTRIB_PRIMITIVE_ID = 8, + GEOM_ATTRIB_TEX_COORD = 9, + + GEOM_ATTRIB_VAR0 = 16, + GEOM_ATTRIB_MAX = (GEOM_ATTRIB_VAR0 + MAX_VARYING) +} gl_geom_attrib; + +/** + * Bitflags for geometry attributes. + * These are used in bitfields in many places. + */ +/*@{*/ +#define GEOM_BIT_COLOR0 (1 << GEOM_ATTRIB_COLOR0) +#define GEOM_BIT_COLOR1 (1 << GEOM_ATTRIB_COLOR1) +#define GEOM_BIT_SCOLOR0 (1 << GEOM_ATTRIB_SECONDARY_COLOR0) +#define GEOM_BIT_SCOLOR1 (1 << GEOM_ATTRIB_SECONDARY_COLOR1) +#define GEOM_BIT_TEX_COORD (1 << GEOM_ATTRIB_TEX_COORD) +#define GEOM_BIT_FOG_COORD (1 << GEOM_ATTRIB_FOG_FRAG_COORD) +#define GEOM_BIT_POSITION (1 << GEOM_ATTRIB_POSITION) +#define GEOM_BIT_POINT_SIDE (1 << GEOM_ATTRIB_POINT_SIZE) +#define GEOM_BIT_CLIP_VERTEX (1 << GEOM_ATTRIB_CLIP_VERTEX) +#define GEOM_BIT_PRIM_ID (1 << GEOM_ATTRIB_PRIMITIVE_ID) +#define GEOM_BIT_VAR0 (1 << GEOM_ATTRIB_VAR0) + +#define GEOM_BIT_VAR(g) (1 << (GEOM_BIT_VAR0 + (g))) +/*@}*/ + + +/** + * Indexes for geometry program result attributes + */ +typedef enum +{ + GEOM_RESULT_POS = 0, + GEOM_RESULT_COL0 = 1, + GEOM_RESULT_COL1 = 2, + GEOM_RESULT_SCOL0 = 3, + GEOM_RESULT_SCOL1 = 4, + GEOM_RESULT_FOGC = 5, + GEOM_RESULT_TEX0 = 6, + GEOM_RESULT_TEX1 = 7, + GEOM_RESULT_TEX2 = 8, + GEOM_RESULT_TEX3 = 9, + GEOM_RESULT_TEX4 = 10, + GEOM_RESULT_TEX5 = 11, + GEOM_RESULT_TEX6 = 12, + GEOM_RESULT_TEX7 = 13, + GEOM_RESULT_PSIZ = 14, + GEOM_RESULT_CLPV = 15, + GEOM_RESULT_PRID = 16, + GEOM_RESULT_LAYR = 17, + GEOM_RESULT_VAR0 = 18, /**< shader varying, should really be 16 */ + /* ### we need to -2 because var0 is 18 instead 16 like in the others */ + GEOM_RESULT_MAX = (GEOM_RESULT_VAR0 + MAX_VARYING - 2) +} gl_geom_result; + + +/** + * Indexes for fragment program input attributes. + */ +typedef enum +{ + FRAG_ATTRIB_WPOS = 0, + FRAG_ATTRIB_COL0 = 1, + FRAG_ATTRIB_COL1 = 2, + FRAG_ATTRIB_FOGC = 3, + FRAG_ATTRIB_TEX0 = 4, + FRAG_ATTRIB_TEX1 = 5, + FRAG_ATTRIB_TEX2 = 6, + FRAG_ATTRIB_TEX3 = 7, + FRAG_ATTRIB_TEX4 = 8, + FRAG_ATTRIB_TEX5 = 9, + FRAG_ATTRIB_TEX6 = 10, + FRAG_ATTRIB_TEX7 = 11, + FRAG_ATTRIB_FACE = 12, /**< front/back face */ + FRAG_ATTRIB_PNTC = 13, /**< sprite/point coord */ + FRAG_ATTRIB_VAR0 = 14, /**< shader varying */ + FRAG_ATTRIB_MAX = (FRAG_ATTRIB_VAR0 + MAX_VARYING) +} gl_frag_attrib; + +/** + * Bitflags for fragment program input attributes. + */ +/*@{*/ +#define FRAG_BIT_WPOS (1 << FRAG_ATTRIB_WPOS) +#define FRAG_BIT_COL0 (1 << FRAG_ATTRIB_COL0) +#define FRAG_BIT_COL1 (1 << FRAG_ATTRIB_COL1) +#define FRAG_BIT_FOGC (1 << FRAG_ATTRIB_FOGC) +#define FRAG_BIT_FACE (1 << FRAG_ATTRIB_FACE) +#define FRAG_BIT_PNTC (1 << FRAG_ATTRIB_PNTC) +#define FRAG_BIT_TEX0 (1 << FRAG_ATTRIB_TEX0) +#define FRAG_BIT_TEX1 (1 << FRAG_ATTRIB_TEX1) +#define FRAG_BIT_TEX2 (1 << FRAG_ATTRIB_TEX2) +#define FRAG_BIT_TEX3 (1 << FRAG_ATTRIB_TEX3) +#define FRAG_BIT_TEX4 (1 << FRAG_ATTRIB_TEX4) +#define FRAG_BIT_TEX5 (1 << FRAG_ATTRIB_TEX5) +#define FRAG_BIT_TEX6 (1 << FRAG_ATTRIB_TEX6) +#define FRAG_BIT_TEX7 (1 << FRAG_ATTRIB_TEX7) +#define FRAG_BIT_VAR0 (1 << FRAG_ATTRIB_VAR0) + +#define FRAG_BIT_TEX(U) (FRAG_BIT_TEX0 << (U)) +#define FRAG_BIT_VAR(V) (FRAG_BIT_VAR0 << (V)) + +#define FRAG_BITS_TEX_ANY (FRAG_BIT_TEX0| \ + FRAG_BIT_TEX1| \ + FRAG_BIT_TEX2| \ + FRAG_BIT_TEX3| \ + FRAG_BIT_TEX4| \ + FRAG_BIT_TEX5| \ + FRAG_BIT_TEX6| \ + FRAG_BIT_TEX7) +/*@}*/ + + +/** + * Fragment program results + */ +typedef enum +{ + FRAG_RESULT_DEPTH = 0, + FRAG_RESULT_STENCIL = 1, + FRAG_RESULT_COLOR = 2, + FRAG_RESULT_DATA0 = 3, + FRAG_RESULT_MAX = (FRAG_RESULT_DATA0 + MAX_DRAW_BUFFERS) +} gl_frag_result; + + +/** + * Indexes for all renderbuffers + */ +typedef enum +{ + /* the four standard color buffers */ + BUFFER_FRONT_LEFT, + BUFFER_BACK_LEFT, + BUFFER_FRONT_RIGHT, + BUFFER_BACK_RIGHT, + BUFFER_DEPTH, + BUFFER_STENCIL, + BUFFER_ACCUM, + /* optional aux buffer */ + BUFFER_AUX0, + /* generic renderbuffers */ + BUFFER_COLOR0, + BUFFER_COLOR1, + BUFFER_COLOR2, + BUFFER_COLOR3, + BUFFER_COLOR4, + BUFFER_COLOR5, + BUFFER_COLOR6, + BUFFER_COLOR7, + BUFFER_COUNT +} gl_buffer_index; + +/** + * Bit flags for all renderbuffers + */ +#define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT) +#define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT) +#define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT) +#define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT) +#define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0) +#define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1) +#define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2) +#define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3) +#define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH) +#define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL) +#define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM) +#define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0) +#define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1) +#define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2) +#define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3) +#define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4) +#define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5) +#define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6) +#define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7) + +/** + * Mask of all the color buffer bits (but not accum). + */ +#define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \ + BUFFER_BIT_BACK_LEFT | \ + BUFFER_BIT_FRONT_RIGHT | \ + BUFFER_BIT_BACK_RIGHT | \ + BUFFER_BIT_AUX0 | \ + BUFFER_BIT_COLOR0 | \ + BUFFER_BIT_COLOR1 | \ + BUFFER_BIT_COLOR2 | \ + BUFFER_BIT_COLOR3 | \ + BUFFER_BIT_COLOR4 | \ + BUFFER_BIT_COLOR5 | \ + BUFFER_BIT_COLOR6 | \ + BUFFER_BIT_COLOR7) + + +/** + * Framebuffer configuration (aka visual / pixelformat) + * Note: some of these fields should be boolean, but it appears that + * code in drivers/dri/common/util.c requires int-sized fields. + */ +struct gl_config +{ + GLboolean rgbMode; + GLboolean floatMode; + GLboolean colorIndexMode; /* XXX is this used anywhere? */ + GLuint doubleBufferMode; + GLuint stereoMode; + + GLboolean haveAccumBuffer; + GLboolean haveDepthBuffer; + GLboolean haveStencilBuffer; + + GLint redBits, greenBits, blueBits, alphaBits; /* bits per comp */ + GLuint redMask, greenMask, blueMask, alphaMask; + GLint rgbBits; /* total bits for rgb */ + GLint indexBits; /* total bits for colorindex */ + + GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits; + GLint depthBits; + GLint stencilBits; + + GLint numAuxBuffers; + + GLint level; + + /* EXT_visual_rating / GLX 1.2 */ + GLint visualRating; + + /* EXT_visual_info / GLX 1.2 */ + GLint transparentPixel; + /* colors are floats scaled to ints */ + GLint transparentRed, transparentGreen, transparentBlue, transparentAlpha; + GLint transparentIndex; + + /* ARB_multisample / SGIS_multisample */ + GLint sampleBuffers; + GLint samples; + + /* SGIX_pbuffer / GLX 1.3 */ + GLint maxPbufferWidth; + GLint maxPbufferHeight; + GLint maxPbufferPixels; + GLint optimalPbufferWidth; /* Only for SGIX_pbuffer. */ + GLint optimalPbufferHeight; /* Only for SGIX_pbuffer. */ + + /* OML_swap_method */ + GLint swapMethod; + + /* EXT_texture_from_pixmap */ + GLint bindToTextureRgb; + GLint bindToTextureRgba; + GLint bindToMipmapTexture; + GLint bindToTextureTargets; + GLint yInverted; + + /* EXT_framebuffer_sRGB */ + GLint sRGBCapable; +}; + + +/** + * Data structure for color tables + */ +struct gl_color_table +{ + GLenum InternalFormat; /**< The user-specified format */ + GLenum _BaseFormat; /**< GL_ALPHA, GL_RGBA, GL_RGB, etc */ + GLuint Size; /**< number of entries in table */ + GLfloat *TableF; /**< Color table, floating point values */ + GLubyte *TableUB; /**< Color table, ubyte values */ + GLubyte RedSize; + GLubyte GreenSize; + GLubyte BlueSize; + GLubyte AlphaSize; + GLubyte LuminanceSize; + GLubyte IntensitySize; +}; + + +/** + * \name Bit flags used for updating material values. + */ +/*@{*/ +#define MAT_ATTRIB_FRONT_AMBIENT 0 +#define MAT_ATTRIB_BACK_AMBIENT 1 +#define MAT_ATTRIB_FRONT_DIFFUSE 2 +#define MAT_ATTRIB_BACK_DIFFUSE 3 +#define MAT_ATTRIB_FRONT_SPECULAR 4 +#define MAT_ATTRIB_BACK_SPECULAR 5 +#define MAT_ATTRIB_FRONT_EMISSION 6 +#define MAT_ATTRIB_BACK_EMISSION 7 +#define MAT_ATTRIB_FRONT_SHININESS 8 +#define MAT_ATTRIB_BACK_SHININESS 9 +#define MAT_ATTRIB_FRONT_INDEXES 10 +#define MAT_ATTRIB_BACK_INDEXES 11 +#define MAT_ATTRIB_MAX 12 + +#define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f)) +#define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f)) +#define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f)) +#define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f)) +#define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f)) +#define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f)) + +#define MAT_INDEX_AMBIENT 0 +#define MAT_INDEX_DIFFUSE 1 +#define MAT_INDEX_SPECULAR 2 + +#define MAT_BIT_FRONT_AMBIENT (1< ) */ + GLfloat _NormSpotDirection[4]; /**< normalized spotlight direction */ + GLfloat _VP_inf_spot_attenuation; + + GLfloat _SpotExpTable[EXP_TABLE_SIZE][2]; /**< to replace a pow() call */ + GLfloat _MatAmbient[2][3]; /**< material ambient * light ambient */ + GLfloat _MatDiffuse[2][3]; /**< material diffuse * light diffuse */ + GLfloat _MatSpecular[2][3]; /**< material spec * light specular */ + GLfloat _dli; /**< CI diffuse light intensity */ + GLfloat _sli; /**< CI specular light intensity */ + /*@}*/ +}; + + +/** + * Light model state. + */ +struct gl_lightmodel +{ + GLfloat Ambient[4]; /**< ambient color */ + GLboolean LocalViewer; /**< Local (or infinite) view point? */ + GLboolean TwoSide; /**< Two (or one) sided lighting? */ + GLenum ColorControl; /**< either GL_SINGLE_COLOR + * or GL_SEPARATE_SPECULAR_COLOR */ +}; + + +/** + * Material state. + */ +struct gl_material +{ + GLfloat Attrib[MAT_ATTRIB_MAX][4]; +}; + + +/** + * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT) + */ +struct gl_accum_attrib +{ + GLfloat ClearColor[4]; /**< Accumulation buffer clear color */ +}; + + +/** + * Color buffer attribute group (GL_COLOR_BUFFER_BIT). + */ +struct gl_colorbuffer_attrib +{ + GLuint ClearIndex; /**< Index to use for glClear */ + GLclampf ClearColor[4]; /**< Color to use for glClear */ + + GLuint IndexMask; /**< Color index write mask */ + GLubyte ColorMask[MAX_DRAW_BUFFERS][4];/**< Each flag is 0xff or 0x0 */ + + GLenum DrawBuffer[MAX_DRAW_BUFFERS]; /**< Which buffer to draw into */ + + /** + * \name alpha testing + */ + /*@{*/ + GLboolean AlphaEnabled; /**< Alpha test enabled flag */ + GLenum AlphaFunc; /**< Alpha test function */ + GLclampf AlphaRef; /**< Alpha reference value */ + /*@}*/ + + /** + * \name Blending + */ + /*@{*/ + GLbitfield BlendEnabled; /**< Per-buffer blend enable flags */ + GLfloat BlendColor[4]; /**< Blending color */ + struct + { + GLenum SrcRGB; /**< RGB blend source term */ + GLenum DstRGB; /**< RGB blend dest term */ + GLenum SrcA; /**< Alpha blend source term */ + GLenum DstA; /**< Alpha blend dest term */ + GLenum EquationRGB; /**< GL_ADD, GL_SUBTRACT, etc. */ + GLenum EquationA; /**< GL_ADD, GL_SUBTRACT, etc. */ + } Blend[MAX_DRAW_BUFFERS]; + /** Are the blend func terms currently different for each buffer/target? */ + GLboolean _BlendFuncPerBuffer; + /** Are the blend equations currently different for each buffer/target? */ + GLboolean _BlendEquationPerBuffer; + /*@}*/ + + /** + * \name Logic op + */ + /*@{*/ + GLenum LogicOp; /**< Logic operator */ + GLboolean IndexLogicOpEnabled; /**< Color index logic op enabled flag */ + GLboolean ColorLogicOpEnabled; /**< RGBA logic op enabled flag */ + GLboolean _LogicOpEnabled; /**< RGBA logic op + EXT_blend_logic_op enabled flag */ + /*@}*/ + + GLboolean DitherFlag; /**< Dither enable flag */ + + GLenum ClampFragmentColor; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */ + GLenum ClampReadColor; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */ + + GLboolean sRGBEnabled; /**< Framebuffer sRGB blending/updating requested */ +}; + + +/** + * Current attribute group (GL_CURRENT_BIT). + */ +struct gl_current_attrib +{ + /** + * \name Current vertex attributes. + * \note Values are valid only after FLUSH_VERTICES has been called. + * \note Index and Edgeflag current values are stored as floats in the + * SIX and SEVEN attribute slots. + */ + GLfloat Attrib[VERT_ATTRIB_MAX][4]; /**< Position, color, texcoords, etc */ + + /** + * \name Current raster position attributes (always valid). + * \note This set of attributes is very similar to the SWvertex struct. + */ + /*@{*/ + GLfloat RasterPos[4]; + GLfloat RasterDistance; + GLfloat RasterColor[4]; + GLfloat RasterSecondaryColor[4]; + GLfloat RasterTexCoords[MAX_TEXTURE_COORD_UNITS][4]; + GLboolean RasterPosValid; + /*@}*/ +}; + + +/** + * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT). + */ +struct gl_depthbuffer_attrib +{ + GLenum Func; /**< Function for depth buffer compare */ + GLclampd Clear; /**< Value to clear depth buffer to */ + GLboolean Test; /**< Depth buffering enabled flag */ + GLboolean Mask; /**< Depth buffer writable? */ + GLboolean BoundsTest; /**< GL_EXT_depth_bounds_test */ + GLfloat BoundsMin, BoundsMax;/**< GL_EXT_depth_bounds_test */ +}; + + +/** + * Evaluator attribute group (GL_EVAL_BIT). + */ +struct gl_eval_attrib +{ + /** + * \name Enable bits + */ + /*@{*/ + GLboolean Map1Color4; + GLboolean Map1Index; + GLboolean Map1Normal; + GLboolean Map1TextureCoord1; + GLboolean Map1TextureCoord2; + GLboolean Map1TextureCoord3; + GLboolean Map1TextureCoord4; + GLboolean Map1Vertex3; + GLboolean Map1Vertex4; + GLboolean Map1Attrib[16]; /* GL_NV_vertex_program */ + GLboolean Map2Color4; + GLboolean Map2Index; + GLboolean Map2Normal; + GLboolean Map2TextureCoord1; + GLboolean Map2TextureCoord2; + GLboolean Map2TextureCoord3; + GLboolean Map2TextureCoord4; + GLboolean Map2Vertex3; + GLboolean Map2Vertex4; + GLboolean Map2Attrib[16]; /* GL_NV_vertex_program */ + GLboolean AutoNormal; + /*@}*/ + + /** + * \name Map Grid endpoints and divisions and calculated du values + */ + /*@{*/ + GLint MapGrid1un; + GLfloat MapGrid1u1, MapGrid1u2, MapGrid1du; + GLint MapGrid2un, MapGrid2vn; + GLfloat MapGrid2u1, MapGrid2u2, MapGrid2du; + GLfloat MapGrid2v1, MapGrid2v2, MapGrid2dv; + /*@}*/ +}; + + +/** + * Fog attribute group (GL_FOG_BIT). + */ +struct gl_fog_attrib +{ + GLboolean Enabled; /**< Fog enabled flag */ + GLfloat Color[4]; /**< Fog color */ + GLfloat Density; /**< Density >= 0.0 */ + GLfloat Start; /**< Start distance in eye coords */ + GLfloat End; /**< End distance in eye coords */ + GLfloat Index; /**< Fog index */ + GLenum Mode; /**< Fog mode */ + GLboolean ColorSumEnabled; + GLenum FogCoordinateSource; /**< GL_EXT_fog_coord */ + GLfloat _Scale; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */ +}; + + +/** + * \brief Layout qualifiers for gl_FragDepth. + * + * Extension AMD_conservative_depth allows gl_FragDepth to be redeclared with + * a layout qualifier. + * + * \see enum ir_depth_layout + */ +enum gl_frag_depth_layout { + FRAG_DEPTH_LAYOUT_NONE, /**< No layout is specified. */ + FRAG_DEPTH_LAYOUT_ANY, + FRAG_DEPTH_LAYOUT_GREATER, + FRAG_DEPTH_LAYOUT_LESS, + FRAG_DEPTH_LAYOUT_UNCHANGED +}; + + +/** + * Hint attribute group (GL_HINT_BIT). + * + * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE. + */ +struct gl_hint_attrib +{ + GLenum PerspectiveCorrection; + GLenum PointSmooth; + GLenum LineSmooth; + GLenum PolygonSmooth; + GLenum Fog; + GLenum ClipVolumeClipping; /**< GL_EXT_clip_volume_hint */ + GLenum TextureCompression; /**< GL_ARB_texture_compression */ + GLenum GenerateMipmap; /**< GL_SGIS_generate_mipmap */ + GLenum FragmentShaderDerivative; /**< GL_ARB_fragment_shader */ +}; + +/** + * Light state flags. + */ +/*@{*/ +#define LIGHT_SPOT 0x1 +#define LIGHT_LOCAL_VIEWER 0x2 +#define LIGHT_POSITIONAL 0x4 +#define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER) +/*@}*/ + + +/** + * Lighting attribute group (GL_LIGHT_BIT). + */ +struct gl_light_attrib +{ + struct gl_light Light[MAX_LIGHTS]; /**< Array of light sources */ + struct gl_lightmodel Model; /**< Lighting model */ + + /** + * Must flush FLUSH_VERTICES before referencing: + */ + /*@{*/ + struct gl_material Material; /**< Includes front & back values */ + /*@}*/ + + GLboolean Enabled; /**< Lighting enabled flag */ + GLenum ShadeModel; /**< GL_FLAT or GL_SMOOTH */ + GLenum ProvokingVertex; /**< GL_EXT_provoking_vertex */ + GLenum ColorMaterialFace; /**< GL_FRONT, BACK or FRONT_AND_BACK */ + GLenum ColorMaterialMode; /**< GL_AMBIENT, GL_DIFFUSE, etc */ + GLbitfield ColorMaterialBitmask; /**< bitmask formed from Face and Mode */ + GLboolean ColorMaterialEnabled; + GLenum ClampVertexColor; + + struct gl_light EnabledList; /**< List sentinel */ + + /** + * Derived state for optimizations: + */ + /*@{*/ + GLboolean _NeedEyeCoords; + GLboolean _NeedVertices; /**< Use fast shader? */ + GLbitfield _Flags; /**< LIGHT_* flags, see above */ + GLfloat _BaseColor[2][3]; + /*@}*/ +}; + + +/** + * Line attribute group (GL_LINE_BIT). + */ +struct gl_line_attrib +{ + GLboolean SmoothFlag; /**< GL_LINE_SMOOTH enabled? */ + GLboolean StippleFlag; /**< GL_LINE_STIPPLE enabled? */ + GLushort StipplePattern; /**< Stipple pattern */ + GLint StippleFactor; /**< Stipple repeat factor */ + GLfloat Width; /**< Line width */ +}; + + +/** + * Display list attribute group (GL_LIST_BIT). + */ +struct gl_list_attrib +{ + GLuint ListBase; +}; + + +/** + * Multisample attribute group (GL_MULTISAMPLE_BIT). + */ +struct gl_multisample_attrib +{ + GLboolean Enabled; + GLboolean _Enabled; /**< true if Enabled and multisample buffer */ + GLboolean SampleAlphaToCoverage; + GLboolean SampleAlphaToOne; + GLboolean SampleCoverage; + GLfloat SampleCoverageValue; + GLboolean SampleCoverageInvert; +}; + + +/** + * A pixelmap (see glPixelMap) + */ +struct gl_pixelmap +{ + GLint Size; + GLfloat Map[MAX_PIXEL_MAP_TABLE]; + GLubyte Map8[MAX_PIXEL_MAP_TABLE]; /**< converted to 8-bit color */ +}; + + +/** + * Collection of all pixelmaps + */ +struct gl_pixelmaps +{ + struct gl_pixelmap RtoR; /**< i.e. GL_PIXEL_MAP_R_TO_R */ + struct gl_pixelmap GtoG; + struct gl_pixelmap BtoB; + struct gl_pixelmap AtoA; + struct gl_pixelmap ItoR; + struct gl_pixelmap ItoG; + struct gl_pixelmap ItoB; + struct gl_pixelmap ItoA; + struct gl_pixelmap ItoI; + struct gl_pixelmap StoS; +}; + + +/** + * Pixel attribute group (GL_PIXEL_MODE_BIT). + */ +struct gl_pixel_attrib +{ + GLenum ReadBuffer; /**< source buffer for glRead/CopyPixels() */ + + /*--- Begin Pixel Transfer State ---*/ + /* Fields are in the order in which they're applied... */ + + /** Scale & Bias (index shift, offset) */ + /*@{*/ + GLfloat RedBias, RedScale; + GLfloat GreenBias, GreenScale; + GLfloat BlueBias, BlueScale; + GLfloat AlphaBias, AlphaScale; + GLfloat DepthBias, DepthScale; + GLint IndexShift, IndexOffset; + /*@}*/ + + /* Pixel Maps */ + /* Note: actual pixel maps are not part of this attrib group */ + GLboolean MapColorFlag; + GLboolean MapStencilFlag; + + /*--- End Pixel Transfer State ---*/ + + /** glPixelZoom */ + GLfloat ZoomX, ZoomY; +}; + + +/** + * Point attribute group (GL_POINT_BIT). + */ +struct gl_point_attrib +{ + GLboolean SmoothFlag; /**< True if GL_POINT_SMOOTH is enabled */ + GLfloat Size; /**< User-specified point size */ + GLfloat Params[3]; /**< GL_EXT_point_parameters */ + GLfloat MinSize, MaxSize; /**< GL_EXT_point_parameters */ + GLfloat Threshold; /**< GL_EXT_point_parameters */ + GLboolean _Attenuated; /**< True if Params != [1, 0, 0] */ + GLboolean PointSprite; /**< GL_NV/ARB_point_sprite */ + GLboolean CoordReplace[MAX_TEXTURE_COORD_UNITS]; /**< GL_ARB_point_sprite*/ + GLenum SpriteRMode; /**< GL_NV_point_sprite (only!) */ + GLenum SpriteOrigin; /**< GL_ARB_point_sprite */ +}; + + +/** + * Polygon attribute group (GL_POLYGON_BIT). + */ +struct gl_polygon_attrib +{ + GLenum FrontFace; /**< Either GL_CW or GL_CCW */ + GLenum FrontMode; /**< Either GL_POINT, GL_LINE or GL_FILL */ + GLenum BackMode; /**< Either GL_POINT, GL_LINE or GL_FILL */ + GLboolean _FrontBit; /**< 0=GL_CCW, 1=GL_CW */ + GLboolean CullFlag; /**< Culling on/off flag */ + GLboolean SmoothFlag; /**< True if GL_POLYGON_SMOOTH is enabled */ + GLboolean StippleFlag; /**< True if GL_POLYGON_STIPPLE is enabled */ + GLenum CullFaceMode; /**< Culling mode GL_FRONT or GL_BACK */ + GLfloat OffsetFactor; /**< Polygon offset factor, from user */ + GLfloat OffsetUnits; /**< Polygon offset units, from user */ + GLboolean OffsetPoint; /**< Offset in GL_POINT mode */ + GLboolean OffsetLine; /**< Offset in GL_LINE mode */ + GLboolean OffsetFill; /**< Offset in GL_FILL mode */ +}; + + +/** + * Scissor attributes (GL_SCISSOR_BIT). + */ +struct gl_scissor_attrib +{ + GLboolean Enabled; /**< Scissor test enabled? */ + GLint X, Y; /**< Lower left corner of box */ + GLsizei Width, Height; /**< Size of box */ +}; + + +/** + * Stencil attribute group (GL_STENCIL_BUFFER_BIT). + * + * Three sets of stencil data are tracked so that OpenGL 2.0, + * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported + * simultaneously. In each of the stencil state arrays, element 0 corresponds + * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 / + * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the + * GL_EXT_stencil_two_side GL_BACK state. + * + * The derived value \c _BackFace is either 1 or 2 depending on whether or + * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled. + * + * The derived value \c _TestTwoSide is set when the front-face and back-face + * stencil state are different. + */ +struct gl_stencil_attrib +{ + GLboolean Enabled; /**< Enabled flag */ + GLboolean TestTwoSide; /**< GL_EXT_stencil_two_side */ + GLubyte ActiveFace; /**< GL_EXT_stencil_two_side (0 or 2) */ + GLboolean _Enabled; /**< Enabled and stencil buffer present */ + GLboolean _TestTwoSide; + GLubyte _BackFace; /**< Current back stencil state (1 or 2) */ + GLenum Function[3]; /**< Stencil function */ + GLenum FailFunc[3]; /**< Fail function */ + GLenum ZPassFunc[3]; /**< Depth buffer pass function */ + GLenum ZFailFunc[3]; /**< Depth buffer fail function */ + GLint Ref[3]; /**< Reference value */ + GLuint ValueMask[3]; /**< Value mask */ + GLuint WriteMask[3]; /**< Write mask */ + GLuint Clear; /**< Clear value */ +}; + + +/** + * An index for each type of texture object. These correspond to the GL + * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc. + * Note: the order is from highest priority to lowest priority. + */ +typedef enum +{ + TEXTURE_2D_ARRAY_INDEX, + TEXTURE_1D_ARRAY_INDEX, + TEXTURE_CUBE_INDEX, + TEXTURE_3D_INDEX, + TEXTURE_RECT_INDEX, + TEXTURE_2D_INDEX, + TEXTURE_1D_INDEX, + NUM_TEXTURE_TARGETS +} gl_texture_index; + + +/** + * Bit flags for each type of texture object + * Used for Texture.Unit[]._ReallyEnabled flags. + */ +/*@{*/ +#define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX) +#define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX) +#define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX) +#define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX) +#define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX) +#define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX) +#define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX) +/*@}*/ + + +/** + * TexGenEnabled flags. + */ +/*@{*/ +#define S_BIT 1 +#define T_BIT 2 +#define R_BIT 4 +#define Q_BIT 8 +#define STR_BITS (S_BIT | T_BIT | R_BIT) +/*@}*/ + + +/** + * Bit flag versions of the corresponding GL_ constants. + */ +/*@{*/ +#define TEXGEN_SPHERE_MAP 0x1 +#define TEXGEN_OBJ_LINEAR 0x2 +#define TEXGEN_EYE_LINEAR 0x4 +#define TEXGEN_REFLECTION_MAP_NV 0x8 +#define TEXGEN_NORMAL_MAP_NV 0x10 + +#define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \ + TEXGEN_REFLECTION_MAP_NV | \ + TEXGEN_NORMAL_MAP_NV) +#define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \ + TEXGEN_REFLECTION_MAP_NV | \ + TEXGEN_NORMAL_MAP_NV | \ + TEXGEN_EYE_LINEAR) +/*@}*/ + + + +/** Tex-gen enabled for texture unit? */ +#define ENABLE_TEXGEN(unit) (1 << (unit)) + +/** Non-identity texture matrix for texture unit? */ +#define ENABLE_TEXMAT(unit) (1 << (unit)) + + +/** + * Texel fetch function prototype. We use texel fetch functions to + * extract RGBA, color indexes and depth components out of 1D, 2D and 3D + * texture images. These functions help to isolate us from the gritty + * details of all the various texture image encodings. + * + * \param texImage texture image. + * \param col texel column. + * \param row texel row. + * \param img texel image level/layer. + * \param texelOut output texel (up to 4 GLchans) + */ +typedef void (*FetchTexelFuncC)( const struct gl_texture_image *texImage, + GLint col, GLint row, GLint img, + GLchan *texelOut ); + +/** + * As above, but returns floats. + * Used for depth component images and for upcoming signed/float + * texture images. + */ +typedef void (*FetchTexelFuncF)( const struct gl_texture_image *texImage, + GLint col, GLint row, GLint img, + GLfloat *texelOut ); + + +typedef void (*StoreTexelFunc)(struct gl_texture_image *texImage, + GLint col, GLint row, GLint img, + const void *texel); + + +/** + * Texture image state. Describes the dimensions of a texture image, + * the texel format and pointers to Texel Fetch functions. + */ +struct gl_texture_image +{ + GLint InternalFormat; /**< Internal format as given by the user */ + GLenum _BaseFormat; /**< Either GL_RGB, GL_RGBA, GL_ALPHA, + * GL_LUMINANCE, GL_LUMINANCE_ALPHA, + * GL_INTENSITY, GL_COLOR_INDEX, + * GL_DEPTH_COMPONENT or GL_DEPTH_STENCIL_EXT + * only. Used for choosing TexEnv arithmetic. + */ + gl_format TexFormat; /**< The actual texture memory format */ + + GLuint Border; /**< 0 or 1 */ + GLuint Width; /**< = 2^WidthLog2 + 2*Border */ + GLuint Height; /**< = 2^HeightLog2 + 2*Border */ + GLuint Depth; /**< = 2^DepthLog2 + 2*Border */ + GLuint Width2; /**< = Width - 2*Border */ + GLuint Height2; /**< = Height - 2*Border */ + GLuint Depth2; /**< = Depth - 2*Border */ + GLuint WidthLog2; /**< = log2(Width2) */ + GLuint HeightLog2; /**< = log2(Height2) */ + GLuint DepthLog2; /**< = log2(Depth2) */ + GLuint MaxLog2; /**< = MAX(WidthLog2, HeightLog2) */ + GLfloat WidthScale; /**< used for mipmap LOD computation */ + GLfloat HeightScale; /**< used for mipmap LOD computation */ + GLfloat DepthScale; /**< used for mipmap LOD computation */ + GLboolean IsClientData; /**< Data owned by client? */ + GLboolean _IsPowerOfTwo; /**< Are all dimensions powers of two? */ + + struct gl_texture_object *TexObject; /**< Pointer back to parent object */ + + FetchTexelFuncC FetchTexelc; /**< GLchan texel fetch function pointer */ + FetchTexelFuncF FetchTexelf; /**< Float texel fetch function pointer */ + + GLuint RowStride; /**< Padded width in units of texels */ + GLuint *ImageOffsets; /**< if 3D texture: array [Depth] of offsets to + each 2D slice in 'Data', in texels */ + GLvoid *Data; /**< Image data, accessed via FetchTexel() */ + + /** + * \name For device driver: + */ + /*@{*/ + void *DriverData; /**< Arbitrary device driver data */ + /*@}*/ +}; + + +/** + * Indexes for cube map faces. + */ +typedef enum +{ + FACE_POS_X = 0, + FACE_NEG_X = 1, + FACE_POS_Y = 2, + FACE_NEG_Y = 3, + FACE_POS_Z = 4, + FACE_NEG_Z = 5, + MAX_FACES = 6 +} gl_face_index; + + +/** + * Texture object state. Contains the array of mipmap images, border color, + * wrap modes, filter modes, shadow/texcompare state, and the per-texture + * color palette. + */ +struct gl_texture_object +{ + _glthread_Mutex Mutex; /**< for thread safety */ + GLint RefCount; /**< reference count */ + GLuint Name; /**< the user-visible texture object ID */ + GLenum Target; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */ + GLfloat Priority; /**< in [0,1] */ + union { + GLfloat f[4]; + GLuint ui[4]; + GLint i[4]; + } BorderColor; /**< Interpreted according to texture format */ + GLenum WrapS; /**< S-axis texture image wrap mode */ + GLenum WrapT; /**< T-axis texture image wrap mode */ + GLenum WrapR; /**< R-axis texture image wrap mode */ + GLenum MinFilter; /**< minification filter */ + GLenum MagFilter; /**< magnification filter */ + GLfloat MinLod; /**< min lambda, OpenGL 1.2 */ + GLfloat MaxLod; /**< max lambda, OpenGL 1.2 */ + GLfloat LodBias; /**< OpenGL 1.4 */ + GLint BaseLevel; /**< min mipmap level, OpenGL 1.2 */ + GLint MaxLevel; /**< max mipmap level, OpenGL 1.2 */ + GLfloat MaxAnisotropy; /**< GL_EXT_texture_filter_anisotropic */ + GLenum CompareMode; /**< GL_ARB_shadow */ + GLenum CompareFunc; /**< GL_ARB_shadow */ + GLfloat CompareFailValue; /**< GL_ARB_shadow_ambient */ + GLenum DepthMode; /**< GL_ARB_depth_texture */ + GLint _MaxLevel; /**< actual max mipmap level (q in the spec) */ + GLfloat _MaxLambda; /**< = _MaxLevel - BaseLevel (q - b in spec) */ + GLint CropRect[4]; /**< GL_OES_draw_texture */ + GLenum Swizzle[4]; /**< GL_EXT_texture_swizzle */ + GLuint _Swizzle; /**< same as Swizzle, but SWIZZLE_* format */ + GLboolean GenerateMipmap; /**< GL_SGIS_generate_mipmap */ + GLboolean _Complete; /**< Is texture object complete? */ + GLboolean _RenderToTexture; /**< Any rendering to this texture? */ + GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */ + GLenum sRGBDecode; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */ + + /** Actual texture images, indexed by [cube face] and [mipmap level] */ + struct gl_texture_image *Image[MAX_FACES][MAX_TEXTURE_LEVELS]; + + /** GL_EXT_paletted_texture */ + struct gl_color_table Palette; + + /** + * \name For device driver. + * Note: instead of attaching driver data to this pointer, it's preferable + * to instead use this struct as a base class for your own texture object + * class. Driver->NewTextureObject() can be used to implement the + * allocation. + */ + void *DriverData; /**< Arbitrary device driver data */ +}; + + +/** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */ +#define MAX_COMBINER_TERMS 4 + + +/** + * Texture combine environment state. + */ +struct gl_tex_env_combine_state +{ + GLenum ModeRGB; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ + GLenum ModeA; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ + /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */ + GLenum SourceRGB[MAX_COMBINER_TERMS]; + GLenum SourceA[MAX_COMBINER_TERMS]; + /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */ + GLenum OperandRGB[MAX_COMBINER_TERMS]; + GLenum OperandA[MAX_COMBINER_TERMS]; + GLuint ScaleShiftRGB; /**< 0, 1 or 2 */ + GLuint ScaleShiftA; /**< 0, 1 or 2 */ + GLuint _NumArgsRGB; /**< Number of inputs used for the RGB combiner */ + GLuint _NumArgsA; /**< Number of inputs used for the A combiner */ +}; + + +/** + * Texture coord generation state. + */ +struct gl_texgen +{ + GLenum Mode; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */ + GLbitfield _ModeBit; /**< TEXGEN_x bit corresponding to Mode */ + GLfloat ObjectPlane[4]; + GLfloat EyePlane[4]; +}; + + +/** + * Texture unit state. Contains enable flags, texture environment/function/ + * combiners, texgen state, pointers to current texture objects and + * post-filter color tables. + */ +struct gl_texture_unit +{ + GLbitfield Enabled; /**< bitmask of TEXTURE_*_BIT flags */ + GLbitfield _ReallyEnabled; /**< 0 or exactly one of TEXTURE_*_BIT flags */ + + GLenum EnvMode; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */ + GLfloat EnvColor[4]; + + struct gl_texgen GenS; + struct gl_texgen GenT; + struct gl_texgen GenR; + struct gl_texgen GenQ; + GLbitfield TexGenEnabled; /**< Bitwise-OR of [STRQ]_BIT values */ + GLbitfield _GenFlags; /**< Bitwise-OR of Gen[STRQ]._ModeBit */ + + GLfloat LodBias; /**< for biasing mipmap levels */ + GLenum BumpTarget; + GLfloat RotMatrix[4]; /* 2x2 matrix */ + + /** + * \name GL_EXT_texture_env_combine + */ + struct gl_tex_env_combine_state Combine; + + /** + * Derived state based on \c EnvMode and the \c BaseFormat of the + * currently enabled texture. + */ + struct gl_tex_env_combine_state _EnvMode; + + /** + * Currently enabled combiner state. This will point to either + * \c Combine or \c _EnvMode. + */ + struct gl_tex_env_combine_state *_CurrentCombine; + + /** Current texture object pointers */ + struct gl_texture_object *CurrentTex[NUM_TEXTURE_TARGETS]; + + /** Points to highest priority, complete and enabled texture object */ + struct gl_texture_object *_Current; +}; + + +/** + * Texture attribute group (GL_TEXTURE_BIT). + */ +struct gl_texture_attrib +{ + GLuint CurrentUnit; /**< GL_ACTIVE_TEXTURE */ + struct gl_texture_unit Unit[MAX_COMBINED_TEXTURE_IMAGE_UNITS]; + + struct gl_texture_object *ProxyTex[NUM_TEXTURE_TARGETS]; + + /** GL_ARB_seamless_cubemap */ + GLboolean CubeMapSeamless; + + /** GL_EXT_shared_texture_palette */ + GLboolean SharedPalette; + struct gl_color_table Palette; + + /** Texture units/samplers used by vertex or fragment texturing */ + GLbitfield _EnabledUnits; + + /** Texture coord units/sets used for fragment texturing */ + GLbitfield _EnabledCoordUnits; + + /** Texture coord units that have texgen enabled */ + GLbitfield _TexGenEnabled; + + /** Texture coord units that have non-identity matrices */ + GLbitfield _TexMatEnabled; + + /** Bitwise-OR of all Texture.Unit[i]._GenFlags */ + GLbitfield _GenFlags; +}; + + +/** + * Transformation attribute group (GL_TRANSFORM_BIT). + */ +struct gl_transform_attrib +{ + GLenum MatrixMode; /**< Matrix mode */ + GLfloat EyeUserPlane[MAX_CLIP_PLANES][4]; /**< User clip planes */ + GLfloat _ClipUserPlane[MAX_CLIP_PLANES][4]; /**< derived */ + GLbitfield ClipPlanesEnabled; /**< on/off bitmask */ + GLboolean Normalize; /**< Normalize all normals? */ + GLboolean RescaleNormals; /**< GL_EXT_rescale_normal */ + GLboolean RasterPositionUnclipped; /**< GL_IBM_rasterpos_clip */ + GLboolean DepthClamp; /**< GL_ARB_depth_clamp */ + + GLfloat CullEyePos[4]; + GLfloat CullObjPos[4]; +}; + + +/** + * Viewport attribute group (GL_VIEWPORT_BIT). + */ +struct gl_viewport_attrib +{ + GLint X, Y; /**< position */ + GLsizei Width, Height; /**< size */ + GLfloat Near, Far; /**< Depth buffer range */ + GLmatrix _WindowMap; /**< Mapping transformation as a matrix. */ +}; + + +/** + * GL_ARB_vertex/pixel_buffer_object buffer object + */ +struct gl_buffer_object +{ + _glthread_Mutex Mutex; + GLint RefCount; + GLuint Name; + GLenum Usage; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */ + GLsizeiptrARB Size; /**< Size of buffer storage in bytes */ + GLubyte *Data; /**< Location of storage either in RAM or VRAM. */ + /** Fields describing a mapped buffer */ + /*@{*/ + GLbitfield AccessFlags; /**< Mask of GL_MAP_x_BIT flags */ + GLvoid *Pointer; /**< User-space address of mapping */ + GLintptr Offset; /**< Mapped offset */ + GLsizeiptr Length; /**< Mapped length */ + /*@}*/ + GLboolean Written; /**< Ever written to? (for debugging) */ + GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */ +}; + + +/** + * Client pixel packing/unpacking attributes + */ +struct gl_pixelstore_attrib +{ + GLint Alignment; + GLint RowLength; + GLint SkipPixels; + GLint SkipRows; + GLint ImageHeight; + GLint SkipImages; + GLboolean SwapBytes; + GLboolean LsbFirst; + GLboolean ClientStorage; /**< GL_APPLE_client_storage */ + GLboolean Invert; /**< GL_MESA_pack_invert */ + struct gl_buffer_object *BufferObj; /**< GL_ARB_pixel_buffer_object */ +}; + + +/** + * Client vertex array attributes + */ +struct gl_client_array +{ + GLint Size; /**< components per element (1,2,3,4) */ + GLenum Type; /**< datatype: GL_FLOAT, GL_INT, etc */ + GLenum Format; /**< default: GL_RGBA, but may be GL_BGRA */ + GLsizei Stride; /**< user-specified stride */ + GLsizei StrideB; /**< actual stride in bytes */ + const GLubyte *Ptr; /**< Points to array data */ + GLboolean Enabled; /**< Enabled flag is a boolean */ + GLboolean Normalized; /**< GL_ARB_vertex_program */ + GLboolean Integer; /**< Integer-valued? */ + GLuint InstanceDivisor; /**< GL_ARB_instanced_arrays */ + GLuint _ElementSize; /**< size of each element in bytes */ + + struct gl_buffer_object *BufferObj;/**< GL_ARB_vertex_buffer_object */ + GLuint _MaxElement; /**< max element index into array buffer + 1 */ +}; + + +/** + * Collection of vertex arrays. Defined by the GL_APPLE_vertex_array_object + * extension, but a nice encapsulation in any case. + */ +struct gl_array_object +{ + /** Name of the array object as received from glGenVertexArrayAPPLE. */ + GLuint Name; + + GLint RefCount; + _glthread_Mutex Mutex; + GLboolean VBOonly; /**< require all arrays to live in VBOs? */ + + /** Conventional vertex arrays */ + /*@{*/ + struct gl_client_array Vertex; + struct gl_client_array Weight; + struct gl_client_array Normal; + struct gl_client_array Color; + struct gl_client_array SecondaryColor; + struct gl_client_array FogCoord; + struct gl_client_array Index; + struct gl_client_array EdgeFlag; + struct gl_client_array TexCoord[MAX_TEXTURE_COORD_UNITS]; + struct gl_client_array PointSize; + /*@}*/ + + /** + * Generic arrays for vertex programs/shaders. + * For NV vertex programs, these attributes alias and take priority + * over the conventional attribs above. For ARB vertex programs and + * GLSL vertex shaders, these attributes are separate. + */ + struct gl_client_array VertexAttrib[MAX_VERTEX_GENERIC_ATTRIBS]; + + /** Mask of _NEW_ARRAY_* values indicating which arrays are enabled */ + GLbitfield _Enabled; + + /** + * Min of all enabled arrays' _MaxElement. When arrays reside inside VBOs + * we can determine the max legal (in bounds) glDrawElements array index. + */ + GLuint _MaxElement; +}; + + +/** + * Vertex array state + */ +struct gl_array_attrib +{ + /** Currently bound array object. See _mesa_BindVertexArrayAPPLE() */ + struct gl_array_object *ArrayObj; + + /** The default vertex array object */ + struct gl_array_object *DefaultArrayObj; + + /** Array objects (GL_ARB/APPLE_vertex_array_object) */ + struct _mesa_HashTable *Objects; + + GLint ActiveTexture; /**< Client Active Texture */ + GLuint LockFirst; /**< GL_EXT_compiled_vertex_array */ + GLuint LockCount; /**< GL_EXT_compiled_vertex_array */ + + /** GL 3.1 (slightly different from GL_NV_primitive_restart) */ + GLboolean PrimitiveRestart; + GLuint RestartIndex; + + GLbitfield NewState; /**< mask of _NEW_ARRAY_* values */ + GLboolean RebindArrays; /**< whether the VBO module should rebind arrays */ + + /* GL_ARB_vertex_buffer_object */ + struct gl_buffer_object *ArrayBufferObj; + struct gl_buffer_object *ElementArrayBufferObj; +}; + + +/** + * Feedback buffer state + */ +struct gl_feedback +{ + GLenum Type; + GLbitfield _Mask; /**< FB_* bits */ + GLfloat *Buffer; + GLuint BufferSize; + GLuint Count; +}; + + +/** + * Selection buffer state + */ +struct gl_selection +{ + GLuint *Buffer; /**< selection buffer */ + GLuint BufferSize; /**< size of the selection buffer */ + GLuint BufferCount; /**< number of values in the selection buffer */ + GLuint Hits; /**< number of records in the selection buffer */ + GLuint NameStackDepth; /**< name stack depth */ + GLuint NameStack[MAX_NAME_STACK_DEPTH]; /**< name stack */ + GLboolean HitFlag; /**< hit flag */ + GLfloat HitMinZ; /**< minimum hit depth */ + GLfloat HitMaxZ; /**< maximum hit depth */ +}; + + +/** + * 1-D Evaluator control points + */ +struct gl_1d_map +{ + GLuint Order; /**< Number of control points */ + GLfloat u1, u2, du; /**< u1, u2, 1.0/(u2-u1) */ + GLfloat *Points; /**< Points to contiguous control points */ +}; + + +/** + * 2-D Evaluator control points + */ +struct gl_2d_map +{ + GLuint Uorder; /**< Number of control points in U dimension */ + GLuint Vorder; /**< Number of control points in V dimension */ + GLfloat u1, u2, du; + GLfloat v1, v2, dv; + GLfloat *Points; /**< Points to contiguous control points */ +}; + + +/** + * All evaluator control point state + */ +struct gl_evaluators +{ + /** + * \name 1-D maps + */ + /*@{*/ + struct gl_1d_map Map1Vertex3; + struct gl_1d_map Map1Vertex4; + struct gl_1d_map Map1Index; + struct gl_1d_map Map1Color4; + struct gl_1d_map Map1Normal; + struct gl_1d_map Map1Texture1; + struct gl_1d_map Map1Texture2; + struct gl_1d_map Map1Texture3; + struct gl_1d_map Map1Texture4; + struct gl_1d_map Map1Attrib[16]; /**< GL_NV_vertex_program */ + /*@}*/ + + /** + * \name 2-D maps + */ + /*@{*/ + struct gl_2d_map Map2Vertex3; + struct gl_2d_map Map2Vertex4; + struct gl_2d_map Map2Index; + struct gl_2d_map Map2Color4; + struct gl_2d_map Map2Normal; + struct gl_2d_map Map2Texture1; + struct gl_2d_map Map2Texture2; + struct gl_2d_map Map2Texture3; + struct gl_2d_map Map2Texture4; + struct gl_2d_map Map2Attrib[16]; /**< GL_NV_vertex_program */ + /*@}*/ +}; + + +/** + * Names of the various vertex/fragment program register files, etc. + * + * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c) + * All values should fit in a 4-bit field. + * + * NOTE: PROGRAM_ENV_PARAM, PROGRAM_STATE_VAR, PROGRAM_NAMED_PARAM, + * PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be considered to + * be "uniform" variables since they can only be set outside glBegin/End. + * They're also all stored in the same Parameters array. + */ +typedef enum +{ + PROGRAM_TEMPORARY, /**< machine->Temporary[] */ + PROGRAM_INPUT, /**< machine->Inputs[] */ + PROGRAM_OUTPUT, /**< machine->Outputs[] */ + PROGRAM_VARYING, /**< machine->Inputs[]/Outputs[] */ + PROGRAM_LOCAL_PARAM, /**< gl_program->LocalParams[] */ + PROGRAM_ENV_PARAM, /**< gl_program->Parameters[] */ + PROGRAM_STATE_VAR, /**< gl_program->Parameters[] */ + PROGRAM_NAMED_PARAM, /**< gl_program->Parameters[] */ + PROGRAM_CONSTANT, /**< gl_program->Parameters[] */ + PROGRAM_UNIFORM, /**< gl_program->Parameters[] */ + PROGRAM_WRITE_ONLY, /**< A dummy, write-only register */ + PROGRAM_ADDRESS, /**< machine->AddressReg */ + PROGRAM_SAMPLER, /**< for shader samplers, compile-time only */ + PROGRAM_SYSTEM_VALUE,/**< InstanceId, PrimitiveID, etc. */ + PROGRAM_UNDEFINED, /**< Invalid/TBD value */ + PROGRAM_FILE_MAX +} gl_register_file; + + +/** + * If the register file is PROGRAM_SYSTEM_VALUE, the register index will be + * one of these values. + */ +typedef enum +{ + SYSTEM_VALUE_FRONT_FACE, /**< Fragment shader only (not done yet) */ + SYSTEM_VALUE_INSTANCE_ID, /**< Vertex shader only */ + SYSTEM_VALUE_MAX /**< Number of values */ +} gl_system_value; + + +/** Vertex and fragment instructions */ +struct prog_instruction; +struct gl_program_parameter_list; +struct gl_uniform_list; + + +/** + * Base class for any kind of program object + */ +struct gl_program +{ + GLuint Id; + GLubyte *String; /**< Null-terminated program text */ + GLint RefCount; + GLenum Target; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_FRAGMENT_PROGRAM_NV */ + GLenum Format; /**< String encoding format */ + GLboolean Resident; + + struct prog_instruction *Instructions; + + GLbitfield InputsRead; /**< Bitmask of which input regs are read */ + GLbitfield64 OutputsWritten; /**< Bitmask of which output regs are written */ + GLbitfield SystemValuesRead; /**< Bitmask of SYSTEM_VALUE_x inputs used */ + GLbitfield InputFlags[MAX_PROGRAM_INPUTS]; /**< PROG_PARAM_BIT_x flags */ + GLbitfield OutputFlags[MAX_PROGRAM_OUTPUTS]; /**< PROG_PARAM_BIT_x flags */ + GLbitfield TexturesUsed[MAX_TEXTURE_UNITS]; /**< TEXTURE_x_BIT bitmask */ + GLbitfield SamplersUsed; /**< Bitfield of which samplers are used */ + GLbitfield ShadowSamplers; /**< Texture units used for shadow sampling. */ + + + /** Named parameters, constants, etc. from program text */ + struct gl_program_parameter_list *Parameters; + /** Numbered local parameters */ + GLfloat LocalParams[MAX_PROGRAM_LOCAL_PARAMS][4]; + + /** Vertex/fragment shader varying vars */ + struct gl_program_parameter_list *Varying; + /** Vertex program user-defined attributes */ + struct gl_program_parameter_list *Attributes; + + /** Map from sampler unit to texture unit (set by glUniform1i()) */ + GLubyte SamplerUnits[MAX_SAMPLERS]; + /** Which texture target is being sampled (TEXTURE_1D/2D/3D/etc_INDEX) */ + gl_texture_index SamplerTargets[MAX_SAMPLERS]; + + /** Bitmask of which register files are read/written with indirect + * addressing. Mask of (1 << PROGRAM_x) bits. + */ + GLbitfield IndirectRegisterFiles; + + /** Logical counts */ + /*@{*/ + GLuint NumInstructions; + GLuint NumTemporaries; + GLuint NumParameters; + GLuint NumAttributes; + GLuint NumAddressRegs; + GLuint NumAluInstructions; + GLuint NumTexInstructions; + GLuint NumTexIndirections; + /*@}*/ + /** Native, actual h/w counts */ + /*@{*/ + GLuint NumNativeInstructions; + GLuint NumNativeTemporaries; + GLuint NumNativeParameters; + GLuint NumNativeAttributes; + GLuint NumNativeAddressRegs; + GLuint NumNativeAluInstructions; + GLuint NumNativeTexInstructions; + GLuint NumNativeTexIndirections; + /*@}*/ +}; + + +/** Vertex program object */ +struct gl_vertex_program +{ + struct gl_program Base; /**< base class */ + GLboolean IsNVProgram; /**< is this a GL_NV_vertex_program program? */ + GLboolean IsPositionInvariant; +}; + + +/** Geometry program object */ +struct gl_geometry_program +{ + struct gl_program Base; /**< base class */ + + GLint VerticesOut; + GLenum InputType; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB, + GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */ + GLenum OutputType; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */ +}; + + +/** Fragment program object */ +struct gl_fragment_program +{ + struct gl_program Base; /**< base class */ + GLenum FogOption; + GLboolean UsesKill; /**< shader uses KIL instruction */ + GLboolean OriginUpperLeft; + GLboolean PixelCenterInteger; + enum gl_frag_depth_layout FragDepthLayout; +}; + + +/** + * State common to vertex and fragment programs. + */ +struct gl_program_state +{ + GLint ErrorPos; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */ + const char *ErrorString; /* GL_PROGRAM_ERROR_STRING_ARB/NV */ +}; + + +/** + * Context state for vertex programs. + */ +struct gl_vertex_program_state +{ + GLboolean Enabled; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */ + GLboolean _Enabled; /**< Enabled and _valid_ user program? */ + GLboolean PointSizeEnabled; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */ + GLboolean TwoSideEnabled; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */ + struct gl_vertex_program *Current; /**< User-bound vertex program */ + + /** Currently enabled and valid vertex program (including internal + * programs, user-defined vertex programs and GLSL vertex shaders). + * This is the program we must use when rendering. + */ + struct gl_vertex_program *_Current; + + GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */ + + /* For GL_NV_vertex_program only: */ + GLenum TrackMatrix[MAX_PROGRAM_ENV_PARAMS / 4]; + GLenum TrackMatrixTransform[MAX_PROGRAM_ENV_PARAMS / 4]; + + /** Should fixed-function T&L be implemented with a vertex prog? */ + GLboolean _MaintainTnlProgram; + + /** Program to emulate fixed-function T&L (see above) */ + struct gl_vertex_program *_TnlProgram; + + /** Cache of fixed-function programs */ + struct gl_program_cache *Cache; + + GLboolean _Overriden; +}; + + +/** + * Context state for geometry programs. + */ +struct gl_geometry_program_state +{ + GLboolean Enabled; /**< GL_ARB_GEOMETRY_SHADER4 */ + GLboolean _Enabled; /**< Enabled and valid program? */ + struct gl_geometry_program *Current; /**< user-bound geometry program */ + + /** Currently enabled and valid program (including internal programs + * and compiled shader programs). + */ + struct gl_geometry_program *_Current; + + GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */ + + /** Cache of fixed-function programs */ + struct gl_program_cache *Cache; +}; + +/** + * Context state for fragment programs. + */ +struct gl_fragment_program_state +{ + GLboolean Enabled; /**< User-set fragment program enable flag */ + GLboolean _Enabled; /**< Enabled and _valid_ user program? */ + struct gl_fragment_program *Current; /**< User-bound fragment program */ + + /** Currently enabled and valid fragment program (including internal + * programs, user-defined fragment programs and GLSL fragment shaders). + * This is the program we must use when rendering. + */ + struct gl_fragment_program *_Current; + + GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */ + + /** Should fixed-function texturing be implemented with a fragment prog? */ + GLboolean _MaintainTexEnvProgram; + + /** Program to emulate fixed-function texture env/combine (see above) */ + struct gl_fragment_program *_TexEnvProgram; + + /** Cache of fixed-function programs */ + struct gl_program_cache *Cache; +}; + + +/** + * ATI_fragment_shader runtime state + */ +#define ATI_FS_INPUT_PRIMARY 0 +#define ATI_FS_INPUT_SECONDARY 1 + +struct atifs_instruction; +struct atifs_setupinst; + +/** + * ATI fragment shader + */ +struct ati_fragment_shader +{ + GLuint Id; + GLint RefCount; + struct atifs_instruction *Instructions[2]; + struct atifs_setupinst *SetupInst[2]; + GLfloat Constants[8][4]; + GLbitfield LocalConstDef; /**< Indicates which constants have been set */ + GLubyte numArithInstr[2]; + GLubyte regsAssigned[2]; + GLubyte NumPasses; /**< 1 or 2 */ + GLubyte cur_pass; + GLubyte last_optype; + GLboolean interpinp1; + GLboolean isValid; + GLuint swizzlerq; +}; + +/** + * Context state for GL_ATI_fragment_shader + */ +struct gl_ati_fragment_shader_state +{ + GLboolean Enabled; + GLboolean _Enabled; /**< enabled and valid shader? */ + GLboolean Compiling; + GLfloat GlobalConstants[8][4]; + struct ati_fragment_shader *Current; +}; + + +/** + * Occlusion/timer query object. + */ +struct gl_query_object +{ + GLenum Target; /**< The query target, when active */ + GLuint Id; /**< hash table ID/name */ + GLuint64EXT Result; /**< the counter */ + GLboolean Active; /**< inside Begin/EndQuery */ + GLboolean Ready; /**< result is ready? */ +}; + + +/** + * Context state for query objects. + */ +struct gl_query_state +{ + struct _mesa_HashTable *QueryObjects; + struct gl_query_object *CurrentOcclusionObject; /* GL_ARB_occlusion_query */ + struct gl_query_object *CurrentTimerObject; /* GL_EXT_timer_query */ + + /** GL_NV_conditional_render */ + struct gl_query_object *CondRenderQuery; + + /** GL_EXT_transform_feedback */ + struct gl_query_object *PrimitivesGenerated; + struct gl_query_object *PrimitivesWritten; + + /** GL_ARB_timer_query */ + struct gl_query_object *TimeElapsed; + + GLenum CondRenderMode; +}; + + +/** Sync object state */ +struct gl_sync_object { + struct simple_node link; + GLenum Type; /**< GL_SYNC_FENCE */ + GLuint Name; /**< Fence name */ + GLint RefCount; /**< Reference count */ + GLboolean DeletePending; /**< Object was deleted while there were still + * live references (e.g., sync not yet finished) + */ + GLenum SyncCondition; + GLbitfield Flags; /**< Flags passed to glFenceSync */ + GLuint StatusFlag:1; /**< Has the sync object been signaled? */ +}; + + +/** Set by #pragma directives */ +struct gl_sl_pragmas +{ + GLboolean IgnoreOptimize; /**< ignore #pragma optimize(on/off) ? */ + GLboolean IgnoreDebug; /**< ignore #pragma debug(on/off) ? */ + GLboolean Optimize; /**< defaults on */ + GLboolean Debug; /**< defaults off */ +}; + + +/** + * A GLSL vertex or fragment shader object. + */ +struct gl_shader +{ + GLenum Type; /**< GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB (first field!) */ + GLuint Name; /**< AKA the handle */ + GLint RefCount; /**< Reference count */ + GLboolean DeletePending; + GLboolean CompileStatus; + const GLchar *Source; /**< Source code string */ + GLuint SourceChecksum; /**< for debug/logging purposes */ + struct gl_program *Program; /**< Post-compile assembly code */ + GLchar *InfoLog; + struct gl_sl_pragmas Pragmas; + + unsigned Version; /**< GLSL version used for linking */ + + struct exec_list *ir; + struct glsl_symbol_table *symbols; + + /** Shaders containing built-in functions that are used for linking. */ + struct gl_shader *builtins_to_link[16]; + unsigned num_builtins_to_link; +}; + + +/** + * A GLSL program object. + * Basically a linked collection of vertex and fragment shaders. + */ +struct gl_shader_program +{ + GLenum Type; /**< Always GL_SHADER_PROGRAM (internal token) */ + GLuint Name; /**< aka handle or ID */ + GLint RefCount; /**< Reference count */ + GLboolean DeletePending; + + GLuint NumShaders; /**< number of attached shaders */ + struct gl_shader **Shaders; /**< List of attached the shaders */ + + /** User-defined attribute bindings (glBindAttribLocation) */ + struct gl_program_parameter_list *Attributes; + + /** Transform feedback varyings */ + struct { + GLenum BufferMode; + GLuint NumVarying; + GLchar **VaryingNames; /**< Array [NumVarying] of char * */ + } TransformFeedback; + + /** Geometry shader state - copied into gl_geometry_program at link time */ + struct { + GLint VerticesOut; + GLenum InputType; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB, + GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */ + GLenum OutputType; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */ + } Geom; + + /* post-link info: */ + struct gl_vertex_program *VertexProgram; /**< Linked vertex program */ + struct gl_fragment_program *FragmentProgram; /**< Linked fragment prog */ + struct gl_geometry_program *GeometryProgram; /**< Linked geometry prog */ + struct gl_uniform_list *Uniforms; + struct gl_program_parameter_list *Varying; + GLboolean LinkStatus; /**< GL_LINK_STATUS */ + GLboolean Validated; + GLboolean _Used; /**< Ever used for drawing? */ + GLchar *InfoLog; + + unsigned Version; /**< GLSL version used for linking */ + + /** + * Per-stage shaders resulting from the first stage of linking. + * + * Set of linked shaders for this program. The array is accessed using the + * \c MESA_SHADER_* defines. Entries for non-existent stages will be + * \c NULL. + */ + struct gl_shader *_LinkedShaders[MESA_SHADER_TYPES]; +}; + + +#define GLSL_DUMP 0x1 /**< Dump shaders to stdout */ +#define GLSL_LOG 0x2 /**< Write shaders to files */ +#define GLSL_OPT 0x4 /**< Force optimizations (override pragmas) */ +#define GLSL_NO_OPT 0x8 /**< Force no optimizations (override pragmas) */ +#define GLSL_UNIFORMS 0x10 /**< Print glUniform calls */ +#define GLSL_NOP_VERT 0x20 /**< Force no-op vertex shaders */ +#define GLSL_NOP_FRAG 0x40 /**< Force no-op fragment shaders */ +#define GLSL_USE_PROG 0x80 /**< Log glUseProgram calls */ + + +/** + * Context state for GLSL vertex/fragment shaders. + */ +struct gl_shader_state +{ + /** + * Programs used for rendering + * + * There is a separate program set for each shader stage. If + * GL_EXT_separate_shader_objects is not supported, each of these must point + * to \c NULL or to the same program. + */ + struct gl_shader_program *CurrentVertexProgram; + struct gl_shader_program *CurrentGeometryProgram; + struct gl_shader_program *CurrentFragmentProgram; + struct gl_shader_program *_CurrentFragmentProgram; + + /** + * Program used by glUniform calls. + * + * Explicitly set by \c glUseProgram and \c glActiveProgramEXT. + */ + struct gl_shader_program *ActiveProgram; + + void *MemPool; + + GLbitfield Flags; /**< Mask of GLSL_x flags */ +}; + +/** + * Compiler options for a single GLSL shaders type + */ +struct gl_shader_compiler_options +{ + /** Driver-selectable options: */ + GLboolean EmitCondCodes; /**< Use condition codes? */ + GLboolean EmitNVTempInitialization; /**< 0-fill NV temp registers */ + /** + * Attempts to flatten all ir_if (OPCODE_IF) for GPUs that can't + * support control flow. + */ + GLboolean EmitNoIfs; + GLboolean EmitNoLoops; + GLboolean EmitNoFunctions; + GLboolean EmitNoCont; /**< Emit CONT opcode? */ + GLboolean EmitNoMainReturn; /**< Emit CONT/RET opcodes? */ + GLboolean EmitNoNoise; /**< Emit NOISE opcodes? */ + GLboolean EmitNoPow; /**< Emit POW opcodes? */ + + /** + * \name Forms of indirect addressing the driver cannot do. + */ + /*@{*/ + GLboolean EmitNoIndirectInput; /**< No indirect addressing of inputs */ + GLboolean EmitNoIndirectOutput; /**< No indirect addressing of outputs */ + GLboolean EmitNoIndirectTemp; /**< No indirect addressing of temps */ + GLboolean EmitNoIndirectUniform; /**< No indirect addressing of constants */ + /*@}*/ + + GLuint MaxUnrollIterations; + + struct gl_sl_pragmas DefaultPragmas; /**< Default #pragma settings */ +}; + +/** + * Transform feedback object state + */ +struct gl_transform_feedback_object +{ + GLuint Name; /**< AKA the object ID */ + GLint RefCount; + GLboolean Active; /**< Is transform feedback enabled? */ + GLboolean Paused; /**< Is transform feedback paused? */ + + /** The feedback buffers */ + GLuint BufferNames[MAX_FEEDBACK_ATTRIBS]; + struct gl_buffer_object *Buffers[MAX_FEEDBACK_ATTRIBS]; + + /** Start of feedback data in dest buffer */ + GLintptr Offset[MAX_FEEDBACK_ATTRIBS]; + /** Max data to put into dest buffer (in bytes) */ + GLsizeiptr Size[MAX_FEEDBACK_ATTRIBS]; +}; + + +/** + * Context state for transform feedback. + */ +struct gl_transform_feedback +{ + GLenum Mode; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */ + + GLboolean RasterDiscard; /**< GL_RASTERIZER_DISCARD */ + + /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */ + struct gl_buffer_object *CurrentBuffer; + + /** The table of all transform feedback objects */ + struct _mesa_HashTable *Objects; + + /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */ + struct gl_transform_feedback_object *CurrentObject; + + /** The default xform-fb object (Name==0) */ + struct gl_transform_feedback_object *DefaultObject; +}; + + + +/** + * State which can be shared by multiple contexts: + */ +struct gl_shared_state +{ + _glthread_Mutex Mutex; /**< for thread safety */ + GLint RefCount; /**< Reference count */ + struct _mesa_HashTable *DisplayList; /**< Display lists hash table */ + struct _mesa_HashTable *TexObjects; /**< Texture objects hash table */ + + /** Default texture objects (shared by all texture units) */ + struct gl_texture_object *DefaultTex[NUM_TEXTURE_TARGETS]; + + /** Fallback texture used when a bound texture is incomplete */ + struct gl_texture_object *FallbackTex; + + /** + * \name Thread safety and statechange notification for texture + * objects. + * + * \todo Improve the granularity of locking. + */ + /*@{*/ + _glthread_Mutex TexMutex; /**< texobj thread safety */ + GLuint TextureStateStamp; /**< state notification for shared tex */ + /*@}*/ + + /** Default buffer object for vertex arrays that aren't in VBOs */ + struct gl_buffer_object *NullBufferObj; + + /** + * \name Vertex/geometry/fragment programs + */ + /*@{*/ + struct _mesa_HashTable *Programs; /**< All vertex/fragment programs */ + struct gl_vertex_program *DefaultVertexProgram; + struct gl_fragment_program *DefaultFragmentProgram; + struct gl_geometry_program *DefaultGeometryProgram; + /*@}*/ + + /* GL_ATI_fragment_shader */ + struct _mesa_HashTable *ATIShaders; + struct ati_fragment_shader *DefaultFragmentShader; + + struct _mesa_HashTable *BufferObjects; + + /** Table of both gl_shader and gl_shader_program objects */ + struct _mesa_HashTable *ShaderObjects; + + /* GL_EXT_framebuffer_object */ + struct _mesa_HashTable *RenderBuffers; + struct _mesa_HashTable *FrameBuffers; + + /* GL_ARB_sync */ + struct simple_node SyncObjects; + + void *DriverData; /**< Device driver shared state */ +}; + + + + +/** + * A renderbuffer stores colors or depth values or stencil values. + * A framebuffer object will have a collection of these. + * Data are read/written to the buffer with a handful of Get/Put functions. + * + * Instances of this object are allocated with the Driver's NewRenderbuffer + * hook. Drivers will likely wrap this class inside a driver-specific + * class to simulate inheritance. + */ +struct gl_renderbuffer +{ +#define RB_MAGIC 0xaabbccdd + int Magic; /** XXX TEMPORARY DEBUG INFO */ + _glthread_Mutex Mutex; /**< for thread safety */ + GLuint ClassID; /**< Useful for drivers */ + GLuint Name; + GLint RefCount; + GLuint Width, Height; + GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */ + + GLenum InternalFormat; /**< The user-specified format */ + GLenum _BaseFormat; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or + GL_STENCIL_INDEX. */ + gl_format Format; /**< The actual renderbuffer memory format */ + + GLubyte NumSamples; + + GLenum DataType; /**< Type of values passed to the Get/Put functions */ + GLvoid *Data; /**< This may not be used by some kinds of RBs */ + + GLboolean AttachedAnytime; /**< TRUE if it was attached to a framebuffer */ + + /* Used to wrap one renderbuffer around another: */ + struct gl_renderbuffer *Wrapped; + + /* Delete this renderbuffer */ + void (*Delete)(struct gl_renderbuffer *rb); + + /* Allocate new storage for this renderbuffer */ + GLboolean (*AllocStorage)(struct gl_context *ctx, struct gl_renderbuffer *rb, + GLenum internalFormat, + GLuint width, GLuint height); + + /* Lock/Unlock are called before/after calling the Get/Put functions. + * Not sure this is the right place for these yet. + void (*Lock)(struct gl_context *ctx, struct gl_renderbuffer *rb); + void (*Unlock)(struct gl_context *ctx, struct gl_renderbuffer *rb); + */ + + /* Return a pointer to the element/pixel at (x,y). + * Should return NULL if the buffer memory can't be directly addressed. + */ + void *(*GetPointer)(struct gl_context *ctx, struct gl_renderbuffer *rb, + GLint x, GLint y); + + /* Get/Read a row of values. + * The values will be of format _BaseFormat and type DataType. + */ + void (*GetRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, + GLint x, GLint y, void *values); + + /* Get/Read values at arbitrary locations. + * The values will be of format _BaseFormat and type DataType. + */ + void (*GetValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, + const GLint x[], const GLint y[], void *values); + + /* Put/Write a row of values. + * The values will be of format _BaseFormat and type DataType. + */ + void (*PutRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, + GLint x, GLint y, const void *values, const GLubyte *mask); + + /* Put/Write a row of RGB values. This is a special-case routine that's + * only used for RGBA renderbuffers when the source data is GL_RGB. That's + * a common case for glDrawPixels and some triangle routines. + * The values will be of format GL_RGB and type DataType. + */ + void (*PutRowRGB)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, + GLint x, GLint y, const void *values, const GLubyte *mask); + + + /* Put/Write a row of identical values. + * The values will be of format _BaseFormat and type DataType. + */ + void (*PutMonoRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, + GLint x, GLint y, const void *value, const GLubyte *mask); + + /* Put/Write values at arbitrary locations. + * The values will be of format _BaseFormat and type DataType. + */ + void (*PutValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, + const GLint x[], const GLint y[], const void *values, + const GLubyte *mask); + /* Put/Write identical values at arbitrary locations. + * The values will be of format _BaseFormat and type DataType. + */ + void (*PutMonoValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, + GLuint count, const GLint x[], const GLint y[], + const void *value, const GLubyte *mask); +}; + + +/** + * A renderbuffer attachment points to either a texture object (and specifies + * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer. + */ +struct gl_renderbuffer_attachment +{ + GLenum Type; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */ + GLboolean Complete; + + /** + * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the + * application supplied renderbuffer object. + */ + struct gl_renderbuffer *Renderbuffer; + + /** + * If \c Type is \c GL_TEXTURE, this stores a pointer to the application + * supplied texture object. + */ + struct gl_texture_object *Texture; + GLuint TextureLevel; /**< Attached mipmap level. */ + GLuint CubeMapFace; /**< 0 .. 5, for cube map textures. */ + GLuint Zoffset; /**< Slice for 3D textures, or layer for both 1D + * and 2D array textures */ +}; + + +/** + * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc). + * In C++ terms, think of this as a base class from which device drivers + * will make derived classes. + */ +struct gl_framebuffer +{ + _glthread_Mutex Mutex; /**< for thread safety */ + /** + * If zero, this is a window system framebuffer. If non-zero, this + * is a FBO framebuffer; note that for some devices (i.e. those with + * a natural pixel coordinate system for FBOs that differs from the + * OpenGL/Mesa coordinate system), this means that the viewport, + * polygon face orientation, and polygon stipple will have to be inverted. + */ + GLuint Name; + + GLint RefCount; + GLboolean DeletePending; + + /** + * The framebuffer's visual. Immutable if this is a window system buffer. + * Computed from attachments if user-made FBO. + */ + struct gl_config Visual; + + GLboolean Initialized; + + GLuint Width, Height; /**< size of frame buffer in pixels */ + + /** \name Drawing bounds (Intersection of buffer size and scissor box) */ + /*@{*/ + GLint _Xmin, _Xmax; /**< inclusive */ + GLint _Ymin, _Ymax; /**< exclusive */ + /*@}*/ + + /** \name Derived Z buffer stuff */ + /*@{*/ + GLuint _DepthMax; /**< Max depth buffer value */ + GLfloat _DepthMaxF; /**< Float max depth buffer value */ + GLfloat _MRD; /**< minimum resolvable difference in Z values */ + /*@}*/ + + /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */ + GLenum _Status; + + /** Integer color values */ + GLboolean _IntegerColor; + + /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */ + struct gl_renderbuffer_attachment Attachment[BUFFER_COUNT]; + + /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER + * attribute group and GL_PIXEL attribute group, respectively. + */ + GLenum ColorDrawBuffer[MAX_DRAW_BUFFERS]; + GLenum ColorReadBuffer; + + /** Computed from ColorDraw/ReadBuffer above */ + GLuint _NumColorDrawBuffers; + GLint _ColorDrawBufferIndexes[MAX_DRAW_BUFFERS]; /**< BUFFER_x or -1 */ + GLint _ColorReadBufferIndex; /* -1 = None */ + struct gl_renderbuffer *_ColorDrawBuffers[MAX_DRAW_BUFFERS]; + struct gl_renderbuffer *_ColorReadBuffer; + + /** The Actual depth/stencil buffers to use. May be wrappers around the + * depth/stencil buffers attached above. */ + struct gl_renderbuffer *_DepthBuffer; + struct gl_renderbuffer *_StencilBuffer; + + /** Delete this framebuffer */ + void (*Delete)(struct gl_framebuffer *fb); +}; + + +/** + * Precision info for shader datatypes. See glGetShaderPrecisionFormat(). + */ +struct gl_precision +{ + GLushort RangeMin; /**< min value exponent */ + GLushort RangeMax; /**< max value exponent */ + GLushort Precision; /**< number of mantissa bits */ +}; + + +/** + * Limits for vertex, geometry and fragment programs/shaders. + */ +struct gl_program_constants +{ + /* logical limits */ + GLuint MaxInstructions; + GLuint MaxAluInstructions; + GLuint MaxTexInstructions; + GLuint MaxTexIndirections; + GLuint MaxAttribs; + GLuint MaxTemps; + GLuint MaxAddressRegs; + GLuint MaxAddressOffset; /**< [-MaxAddressOffset, MaxAddressOffset-1] */ + GLuint MaxParameters; + GLuint MaxLocalParams; + GLuint MaxEnvParams; + /* native/hardware limits */ + GLuint MaxNativeInstructions; + GLuint MaxNativeAluInstructions; + GLuint MaxNativeTexInstructions; + GLuint MaxNativeTexIndirections; + GLuint MaxNativeAttribs; + GLuint MaxNativeTemps; + GLuint MaxNativeAddressRegs; + GLuint MaxNativeParameters; + /* For shaders */ + GLuint MaxUniformComponents; /**< Usually == MaxParameters * 4 */ + /* ES 2.0 and GL_ARB_ES2_compatibility */ + struct gl_precision LowFloat, MediumFloat, HighFloat; + struct gl_precision LowInt, MediumInt, HighInt; +}; + + +/** + * Constants which may be overridden by device driver during context creation + * but are never changed after that. + */ +struct gl_constants +{ + GLint MaxTextureMbytes; /**< Max memory per image, in MB */ + GLint MaxTextureLevels; /**< Max mipmap levels. */ + GLint Max3DTextureLevels; /**< Max mipmap levels for 3D textures */ + GLint MaxCubeTextureLevels; /**< Max mipmap levels for cube textures */ + GLint MaxArrayTextureLayers; /**< Max layers in array textures */ + GLint MaxTextureRectSize; /**< Max rectangle texture size, in pixes */ + GLuint MaxTextureCoordUnits; + GLuint MaxTextureImageUnits; + GLuint MaxVertexTextureImageUnits; + GLuint MaxCombinedTextureImageUnits; + GLuint MaxGeometryTextureImageUnits; + GLuint MaxTextureUnits; /**< = MIN(CoordUnits, ImageUnits) */ + GLfloat MaxTextureMaxAnisotropy; /**< GL_EXT_texture_filter_anisotropic */ + GLfloat MaxTextureLodBias; /**< GL_EXT_texture_lod_bias */ + + GLuint MaxArrayLockSize; + + GLint SubPixelBits; + + GLfloat MinPointSize, MaxPointSize; /**< aliased */ + GLfloat MinPointSizeAA, MaxPointSizeAA; /**< antialiased */ + GLfloat PointSizeGranularity; + GLfloat MinLineWidth, MaxLineWidth; /**< aliased */ + GLfloat MinLineWidthAA, MaxLineWidthAA; /**< antialiased */ + GLfloat LineWidthGranularity; + + GLuint MaxColorTableSize; + + GLuint MaxClipPlanes; + GLuint MaxLights; + GLfloat MaxShininess; /**< GL_NV_light_max_exponent */ + GLfloat MaxSpotExponent; /**< GL_NV_light_max_exponent */ + + GLuint MaxViewportWidth, MaxViewportHeight; + + struct gl_program_constants VertexProgram; /**< GL_ARB_vertex_program */ + struct gl_program_constants FragmentProgram; /**< GL_ARB_fragment_program */ + struct gl_program_constants GeometryProgram; /**< GL_ARB_geometry_shader4 */ + GLuint MaxProgramMatrices; + GLuint MaxProgramMatrixStackDepth; + + /** vertex array / buffer object bounds checking */ + GLboolean CheckArrayBounds; + + GLuint MaxDrawBuffers; /**< GL_ARB_draw_buffers */ + + GLuint MaxColorAttachments; /**< GL_EXT_framebuffer_object */ + GLuint MaxRenderbufferSize; /**< GL_EXT_framebuffer_object */ + GLuint MaxSamples; /**< GL_ARB_framebuffer_object */ + + /** Number of varying vectors between vertex and fragment shaders */ + GLuint MaxVarying; + GLuint MaxVertexVaryingComponents; /**< Between vert and geom shader */ + GLuint MaxGeometryVaryingComponents; /**< Between geom and frag shader */ + + /** GL_ARB_geometry_shader4 */ + GLuint MaxGeometryOutputVertices; + GLuint MaxGeometryTotalOutputComponents; + + GLuint GLSLVersion; /**< GLSL version supported (ex: 120 = 1.20) */ + + /** Which texture units support GL_ATI_envmap_bumpmap as targets */ + GLbitfield SupportedBumpUnits; + + /** + * Maximum amount of time, measured in nanseconds, that the server can wait. + */ + GLuint64 MaxServerWaitTimeout; + + /** GL_EXT_provoking_vertex */ + GLboolean QuadsFollowProvokingVertexConvention; + + /** OpenGL version 3.0 */ + GLbitfield ContextFlags; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */ + + /** OpenGL version 3.2 */ + GLbitfield ProfileMask; /**< Mask of CONTEXT_x_PROFILE_BIT */ + + /** GL_EXT_transform_feedback */ + GLuint MaxTransformFeedbackSeparateAttribs; + GLuint MaxTransformFeedbackSeparateComponents; + GLuint MaxTransformFeedbackInterleavedComponents; + + /** GL_EXT_gpu_shader4 */ + GLint MinProgramTexelOffset, MaxProgramTexelOffset; + + /* GL_EXT_framebuffer_sRGB */ + GLboolean sRGBCapable; /* can enable sRGB blend/update on FBOs */ +}; + + +/** + * Enable flag for each OpenGL extension. Different device drivers will + * enable different extensions at runtime. + */ +struct gl_extensions +{ + GLboolean dummy; /* don't remove this! */ + GLboolean dummy_true; /* Set true by _mesa_init_extensions(). */ + GLboolean dummy_false; /* Set false by _mesa_init_extensions(). */ + GLboolean ARB_ES2_compatibility; + GLboolean ARB_blend_func_extended; + GLboolean ARB_copy_buffer; + GLboolean ARB_depth_buffer_float; + GLboolean ARB_depth_clamp; + GLboolean ARB_depth_texture; + GLboolean ARB_draw_buffers; + GLboolean ARB_draw_buffers_blend; + GLboolean ARB_draw_elements_base_vertex; + GLboolean ARB_draw_instanced; + GLboolean ARB_fragment_coord_conventions; + GLboolean ARB_fragment_program; + GLboolean ARB_fragment_program_shadow; + GLboolean ARB_fragment_shader; + GLboolean ARB_framebuffer_object; + GLboolean ARB_explicit_attrib_location; + GLboolean ARB_geometry_shader4; + GLboolean ARB_half_float_pixel; + GLboolean ARB_half_float_vertex; + GLboolean ARB_instanced_arrays; + GLboolean ARB_map_buffer_range; + GLboolean ARB_multisample; + GLboolean ARB_multitexture; + GLboolean ARB_occlusion_query; + GLboolean ARB_occlusion_query2; + GLboolean ARB_point_sprite; + GLboolean ARB_sampler_objects; + GLboolean ARB_seamless_cube_map; + GLboolean ARB_shader_objects; + GLboolean ARB_shader_stencil_export; + GLboolean ARB_shading_language_100; + GLboolean ARB_shadow; + GLboolean ARB_shadow_ambient; + GLboolean ARB_sync; + GLboolean ARB_texture_border_clamp; + GLboolean ARB_texture_buffer_object; + GLboolean ARB_texture_compression; + GLboolean ARB_texture_compression_rgtc; + GLboolean ARB_texture_cube_map; + GLboolean ARB_texture_env_combine; + GLboolean ARB_texture_env_crossbar; + GLboolean ARB_texture_env_dot3; + GLboolean ARB_texture_float; + GLboolean ARB_texture_mirrored_repeat; + GLboolean ARB_texture_multisample; + GLboolean ARB_texture_non_power_of_two; + GLboolean ARB_texture_rg; + GLboolean ARB_texture_rgb10_a2ui; + GLboolean ARB_timer_query; + GLboolean ARB_transform_feedback2; + GLboolean ARB_transpose_matrix; + GLboolean ARB_uniform_buffer_object; + GLboolean ARB_vertex_array_object; + GLboolean ARB_vertex_buffer_object; + GLboolean ARB_vertex_program; + GLboolean ARB_vertex_shader; + GLboolean ARB_vertex_type_2_10_10_10_rev; + GLboolean ARB_window_pos; + GLboolean EXT_abgr; + GLboolean EXT_bgra; + GLboolean EXT_blend_color; + GLboolean EXT_blend_equation_separate; + GLboolean EXT_blend_func_separate; + GLboolean EXT_blend_logic_op; + GLboolean EXT_blend_minmax; + GLboolean EXT_blend_subtract; + GLboolean EXT_clip_volume_hint; + GLboolean EXT_compiled_vertex_array; + GLboolean EXT_copy_texture; + GLboolean EXT_depth_bounds_test; + GLboolean EXT_draw_buffers2; + GLboolean EXT_draw_range_elements; + GLboolean EXT_fog_coord; + GLboolean EXT_framebuffer_blit; + GLboolean EXT_framebuffer_multisample; + GLboolean EXT_framebuffer_object; + GLboolean EXT_framebuffer_sRGB; + GLboolean EXT_gpu_program_parameters; + GLboolean EXT_gpu_shader4; + GLboolean EXT_multi_draw_arrays; + GLboolean EXT_paletted_texture; + GLboolean EXT_packed_depth_stencil; + GLboolean EXT_packed_float; + GLboolean EXT_packed_pixels; + GLboolean EXT_pixel_buffer_object; + GLboolean EXT_point_parameters; + GLboolean EXT_polygon_offset; + GLboolean EXT_provoking_vertex; + GLboolean EXT_rescale_normal; + GLboolean EXT_shadow_funcs; + GLboolean EXT_secondary_color; + GLboolean EXT_separate_shader_objects; + GLboolean EXT_separate_specular_color; + GLboolean EXT_shared_texture_palette; + GLboolean EXT_stencil_wrap; + GLboolean EXT_stencil_two_side; + GLboolean EXT_subtexture; + GLboolean EXT_texture; + GLboolean EXT_texture_object; + GLboolean EXT_texture3D; + GLboolean EXT_texture_array; + GLboolean EXT_texture_compression_latc; + GLboolean EXT_texture_compression_s3tc; + GLboolean EXT_texture_env_add; + GLboolean EXT_texture_env_combine; + GLboolean EXT_texture_env_dot3; + GLboolean EXT_texture_filter_anisotropic; + GLboolean EXT_texture_integer; + GLboolean EXT_texture_lod_bias; + GLboolean EXT_texture_mirror_clamp; + GLboolean EXT_texture_shared_exponent; + GLboolean EXT_texture_sRGB; + GLboolean EXT_texture_sRGB_decode; + GLboolean EXT_texture_swizzle; + GLboolean EXT_transform_feedback; + GLboolean EXT_timer_query; + GLboolean EXT_vertex_array; + GLboolean EXT_vertex_array_bgra; + GLboolean EXT_vertex_array_set; + GLboolean OES_standard_derivatives; + /* vendor extensions */ + GLboolean AMD_conservative_depth; + GLboolean APPLE_client_storage; + GLboolean APPLE_packed_pixels; + GLboolean APPLE_vertex_array_object; + GLboolean APPLE_object_purgeable; + GLboolean ATI_envmap_bumpmap; + GLboolean ATI_texture_compression_3dc; + GLboolean ATI_texture_mirror_once; + GLboolean ATI_texture_env_combine3; + GLboolean ATI_fragment_shader; + GLboolean ATI_separate_stencil; + GLboolean IBM_rasterpos_clip; + GLboolean IBM_multimode_draw_arrays; + GLboolean MESA_pack_invert; + GLboolean MESA_resize_buffers; + GLboolean MESA_ycbcr_texture; + GLboolean MESA_texture_array; + GLboolean MESA_texture_signed_rgba; + GLboolean NV_blend_square; + GLboolean NV_conditional_render; + GLboolean NV_fragment_program; + GLboolean NV_fragment_program_option; + GLboolean NV_light_max_exponent; + GLboolean NV_point_sprite; + GLboolean NV_primitive_restart; + GLboolean NV_texgen_reflection; + GLboolean NV_texture_env_combine4; + GLboolean NV_texture_rectangle; + GLboolean NV_vertex_program; + GLboolean NV_vertex_program1_1; + GLboolean OES_read_format; + GLboolean SGIS_generate_mipmap; + GLboolean SGIS_texture_edge_clamp; + GLboolean SGIS_texture_lod; + GLboolean TDFX_texture_compression_FXT1; + GLboolean S3_s3tc; + GLboolean OES_EGL_image; + GLboolean OES_draw_texture; + GLboolean EXT_texture_format_BGRA8888; + GLboolean extension_sentinel; + /** The extension string */ + const GLubyte *String; + /** Number of supported extensions */ + GLuint Count; +}; + + +/** + * A stack of matrices (projection, modelview, color, texture, etc). + */ +struct gl_matrix_stack +{ + GLmatrix *Top; /**< points into Stack */ + GLmatrix *Stack; /**< array [MaxDepth] of GLmatrix */ + GLuint Depth; /**< 0 <= Depth < MaxDepth */ + GLuint MaxDepth; /**< size of Stack[] array */ + GLuint DirtyFlag; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */ +}; + + +/** + * \name Bits for image transfer operations + * \sa __struct gl_contextRec::ImageTransferState. + */ +/*@{*/ +#define IMAGE_SCALE_BIAS_BIT 0x1 +#define IMAGE_SHIFT_OFFSET_BIT 0x2 +#define IMAGE_MAP_COLOR_BIT 0x4 +#define IMAGE_CLAMP_BIT 0x800 + + +/** Pixel Transfer ops */ +#define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \ + IMAGE_SHIFT_OFFSET_BIT | \ + IMAGE_MAP_COLOR_BIT) + +/** + * \name Bits to indicate what state has changed. + */ +/*@{*/ +#define _NEW_MODELVIEW (1 << 0) /**< gl_context::ModelView */ +#define _NEW_PROJECTION (1 << 1) /**< gl_context::Projection */ +#define _NEW_TEXTURE_MATRIX (1 << 2) /**< gl_context::TextureMatrix */ +#define _NEW_COLOR (1 << 3) /**< gl_context::Color */ +#define _NEW_DEPTH (1 << 4) /**< gl_context::Depth */ +#define _NEW_EVAL (1 << 5) /**< gl_context::Eval, EvalMap */ +#define _NEW_FOG (1 << 6) /**< gl_context::Fog */ +#define _NEW_HINT (1 << 7) /**< gl_context::Hint */ +#define _NEW_LIGHT (1 << 8) /**< gl_context::Light */ +#define _NEW_LINE (1 << 9) /**< gl_context::Line */ +#define _NEW_PIXEL (1 << 10) /**< gl_context::Pixel */ +#define _NEW_POINT (1 << 11) /**< gl_context::Point */ +#define _NEW_POLYGON (1 << 12) /**< gl_context::Polygon */ +#define _NEW_POLYGONSTIPPLE (1 << 13) /**< gl_context::PolygonStipple */ +#define _NEW_SCISSOR (1 << 14) /**< gl_context::Scissor */ +#define _NEW_STENCIL (1 << 15) /**< gl_context::Stencil */ +#define _NEW_TEXTURE (1 << 16) /**< gl_context::Texture */ +#define _NEW_TRANSFORM (1 << 17) /**< gl_context::Transform */ +#define _NEW_VIEWPORT (1 << 18) /**< gl_context::Viewport */ +#define _NEW_PACKUNPACK (1 << 19) /**< gl_context::Pack, Unpack */ +#define _NEW_ARRAY (1 << 20) /**< gl_context::Array */ +#define _NEW_RENDERMODE (1 << 21) /**< gl_context::RenderMode, etc */ +#define _NEW_BUFFERS (1 << 22) /**< gl_context::Visual, DrawBuffer, */ +#define _NEW_CURRENT_ATTRIB (1 << 23) /**< gl_context::Current */ +#define _NEW_MULTISAMPLE (1 << 24) /**< gl_context::Multisample */ +#define _NEW_TRACK_MATRIX (1 << 25) /**< gl_context::VertexProgram */ +#define _NEW_PROGRAM (1 << 26) /**< New program/shader state */ +#define _NEW_PROGRAM_CONSTANTS (1 << 27) +#define _NEW_BUFFER_OBJECT (1 << 28) +#define _NEW_ALL ~0 +/*@}*/ + + +/** + * \name Bits to track array state changes + * + * Also used to summarize array enabled. + */ +/*@{*/ +#define _NEW_ARRAY_VERTEX VERT_BIT_POS +#define _NEW_ARRAY_WEIGHT VERT_BIT_WEIGHT +#define _NEW_ARRAY_NORMAL VERT_BIT_NORMAL +#define _NEW_ARRAY_COLOR0 VERT_BIT_COLOR0 +#define _NEW_ARRAY_COLOR1 VERT_BIT_COLOR1 +#define _NEW_ARRAY_FOGCOORD VERT_BIT_FOG +#define _NEW_ARRAY_INDEX VERT_BIT_COLOR_INDEX +#define _NEW_ARRAY_EDGEFLAG VERT_BIT_EDGEFLAG +#define _NEW_ARRAY_POINT_SIZE VERT_BIT_COLOR_INDEX /* aliased */ +#define _NEW_ARRAY_TEXCOORD_0 VERT_BIT_TEX0 +#define _NEW_ARRAY_TEXCOORD_1 VERT_BIT_TEX1 +#define _NEW_ARRAY_TEXCOORD_2 VERT_BIT_TEX2 +#define _NEW_ARRAY_TEXCOORD_3 VERT_BIT_TEX3 +#define _NEW_ARRAY_TEXCOORD_4 VERT_BIT_TEX4 +#define _NEW_ARRAY_TEXCOORD_5 VERT_BIT_TEX5 +#define _NEW_ARRAY_TEXCOORD_6 VERT_BIT_TEX6 +#define _NEW_ARRAY_TEXCOORD_7 VERT_BIT_TEX7 +#define _NEW_ARRAY_ATTRIB_0 VERT_BIT_GENERIC0 /* start at bit 16 */ +#define _NEW_ARRAY_ALL 0xffffffff + + +#define _NEW_ARRAY_TEXCOORD(i) (_NEW_ARRAY_TEXCOORD_0 << (i)) +#define _NEW_ARRAY_ATTRIB(i) (_NEW_ARRAY_ATTRIB_0 << (i)) +/*@}*/ + + + +/** + * \name A bunch of flags that we think might be useful to drivers. + * + * Set in the __struct gl_contextRec::_TriangleCaps bitfield. + */ +/*@{*/ +#define DD_FLATSHADE 0x1 +#define DD_SEPARATE_SPECULAR 0x2 +#define DD_TRI_CULL_FRONT_BACK 0x4 /* special case on some hw */ +#define DD_TRI_LIGHT_TWOSIDE 0x8 +#define DD_TRI_UNFILLED 0x10 +#define DD_TRI_SMOOTH 0x20 +#define DD_TRI_STIPPLE 0x40 +#define DD_TRI_OFFSET 0x80 +#define DD_LINE_SMOOTH 0x100 +#define DD_LINE_STIPPLE 0x200 +#define DD_POINT_SMOOTH 0x400 +#define DD_POINT_ATTEN 0x800 +#define DD_TRI_TWOSTENCIL 0x1000 +/*@}*/ + + +/** + * \name Define the state changes under which each of these bits might change + */ +/*@{*/ +#define _DD_NEW_FLATSHADE _NEW_LIGHT +#define _DD_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | _NEW_FOG | _NEW_PROGRAM) +#define _DD_NEW_TRI_CULL_FRONT_BACK _NEW_POLYGON +#define _DD_NEW_TRI_LIGHT_TWOSIDE _NEW_LIGHT +#define _DD_NEW_TRI_UNFILLED _NEW_POLYGON +#define _DD_NEW_TRI_SMOOTH _NEW_POLYGON +#define _DD_NEW_TRI_STIPPLE _NEW_POLYGON +#define _DD_NEW_TRI_OFFSET _NEW_POLYGON +#define _DD_NEW_LINE_SMOOTH _NEW_LINE +#define _DD_NEW_LINE_STIPPLE _NEW_LINE +#define _DD_NEW_LINE_WIDTH _NEW_LINE +#define _DD_NEW_POINT_SMOOTH _NEW_POINT +#define _DD_NEW_POINT_SIZE _NEW_POINT +#define _DD_NEW_POINT_ATTEN _NEW_POINT +/*@}*/ + + +/** + * Composite state flags + */ +/*@{*/ +#define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \ + _NEW_TEXTURE | \ + _NEW_POINT | \ + _NEW_PROGRAM | \ + _NEW_MODELVIEW) + +#define _MESA_NEW_NEED_NORMALS (_NEW_LIGHT | \ + _NEW_TEXTURE) + +#define _MESA_NEW_TRANSFER_STATE (_NEW_PIXEL) +/*@}*/ + + + + +/* This has to be included here. */ +#include "dd.h" + + +/** + * Display list flags. + * Strictly this is a tnl-private concept, but it doesn't seem + * worthwhile adding a tnl private structure just to hold this one bit + * of information: + */ +#define DLIST_DANGLING_REFS 0x1 + + +/** Opaque declaration of display list payload data type */ +union gl_dlist_node; + + +/** + * Provide a location where information about a display list can be + * collected. Could be extended with driverPrivate structures, + * etc. in the future. + */ +struct gl_display_list +{ + GLuint Name; + GLbitfield Flags; /**< DLIST_x flags */ + /** The dlist commands are in a linked list of nodes */ + union gl_dlist_node *Head; +}; + + +/** + * State used during display list compilation and execution. + */ +struct gl_dlist_state +{ + GLuint CallDepth; /**< Current recursion calling depth */ + + struct gl_display_list *CurrentList; /**< List currently being compiled */ + union gl_dlist_node *CurrentBlock; /**< Pointer to current block of nodes */ + GLuint CurrentPos; /**< Index into current block of nodes */ + + GLvertexformat ListVtxfmt; + + GLubyte ActiveAttribSize[VERT_ATTRIB_MAX]; + GLfloat CurrentAttrib[VERT_ATTRIB_MAX][4]; + + GLubyte ActiveMaterialSize[MAT_ATTRIB_MAX]; + GLfloat CurrentMaterial[MAT_ATTRIB_MAX][4]; + + GLubyte ActiveIndex; + GLfloat CurrentIndex; + + GLubyte ActiveEdgeFlag; + GLboolean CurrentEdgeFlag; + + struct { + /* State known to have been set by the currently-compiling display + * list. Used to eliminate some redundant state changes. + */ + GLenum ShadeModel; + } Current; +}; + + +/** + * Enum for the OpenGL APIs we know about and may support. + */ +typedef enum +{ + API_OPENGL, + API_OPENGLES, + API_OPENGLES2 +} gl_api; + + +/** + * Mesa rendering context. + * + * This is the central context data structure for Mesa. Almost all + * OpenGL state is contained in this structure. + * Think of this as a base class from which device drivers will derive + * sub classes. + * + * The struct gl_context typedef names this structure. + */ +struct gl_context +{ + /** State possibly shared with other contexts in the address space */ + struct gl_shared_state *Shared; + + /** \name API function pointer tables */ + /*@{*/ + gl_api API; + struct _glapi_table *Save; /**< Display list save functions */ + struct _glapi_table *Exec; /**< Execute functions */ + struct _glapi_table *CurrentDispatch; /**< == Save or Exec !! */ + /*@}*/ + + struct gl_config Visual; + struct gl_framebuffer *DrawBuffer; /**< buffer for writing */ + struct gl_framebuffer *ReadBuffer; /**< buffer for reading */ + struct gl_framebuffer *WinSysDrawBuffer; /**< set with MakeCurrent */ + struct gl_framebuffer *WinSysReadBuffer; /**< set with MakeCurrent */ + + /** + * Device driver function pointer table + */ + struct dd_function_table Driver; + + void *DriverCtx; /**< Points to device driver context/state */ + + /** Core/Driver constants */ + struct gl_constants Const; + + /** \name The various 4x4 matrix stacks */ + /*@{*/ + struct gl_matrix_stack ModelviewMatrixStack; + struct gl_matrix_stack ProjectionMatrixStack; + struct gl_matrix_stack TextureMatrixStack[MAX_TEXTURE_UNITS]; + struct gl_matrix_stack ProgramMatrixStack[MAX_PROGRAM_MATRICES]; + struct gl_matrix_stack *CurrentStack; /**< Points to one of the above stacks */ + /*@}*/ + + /** Combined modelview and projection matrix */ + GLmatrix _ModelProjectMatrix; + + /** \name Display lists */ + struct gl_dlist_state ListState; + + GLboolean ExecuteFlag; /**< Execute GL commands? */ + GLboolean CompileFlag; /**< Compile GL commands into display list? */ + + /** Extension information */ + struct gl_extensions Extensions; + + /** Version info */ + GLuint VersionMajor, VersionMinor; + char *VersionString; + + /** \name State attribute stack (for glPush/PopAttrib) */ + /*@{*/ + GLuint AttribStackDepth; + struct gl_attrib_node *AttribStack[MAX_ATTRIB_STACK_DEPTH]; + /*@}*/ + + /** \name Renderer attribute groups + * + * We define a struct for each attribute group to make pushing and popping + * attributes easy. Also it's a good organization. + */ + /*@{*/ + struct gl_accum_attrib Accum; /**< Accum buffer attributes */ + struct gl_colorbuffer_attrib Color; /**< Color buffer attributes */ + struct gl_current_attrib Current; /**< Current attributes */ + struct gl_depthbuffer_attrib Depth; /**< Depth buffer attributes */ + struct gl_eval_attrib Eval; /**< Eval attributes */ + struct gl_fog_attrib Fog; /**< Fog attributes */ + struct gl_hint_attrib Hint; /**< Hint attributes */ + struct gl_light_attrib Light; /**< Light attributes */ + struct gl_line_attrib Line; /**< Line attributes */ + struct gl_list_attrib List; /**< List attributes */ + struct gl_multisample_attrib Multisample; + struct gl_pixel_attrib Pixel; /**< Pixel attributes */ + struct gl_point_attrib Point; /**< Point attributes */ + struct gl_polygon_attrib Polygon; /**< Polygon attributes */ + GLuint PolygonStipple[32]; /**< Polygon stipple */ + struct gl_scissor_attrib Scissor; /**< Scissor attributes */ + struct gl_stencil_attrib Stencil; /**< Stencil buffer attributes */ + struct gl_texture_attrib Texture; /**< Texture attributes */ + struct gl_transform_attrib Transform; /**< Transformation attributes */ + struct gl_viewport_attrib Viewport; /**< Viewport attributes */ + /*@}*/ + + /** \name Client attribute stack */ + /*@{*/ + GLuint ClientAttribStackDepth; + struct gl_attrib_node *ClientAttribStack[MAX_CLIENT_ATTRIB_STACK_DEPTH]; + /*@}*/ + + /** \name Client attribute groups */ + /*@{*/ + struct gl_array_attrib Array; /**< Vertex arrays */ + struct gl_pixelstore_attrib Pack; /**< Pixel packing */ + struct gl_pixelstore_attrib Unpack; /**< Pixel unpacking */ + struct gl_pixelstore_attrib DefaultPacking; /**< Default params */ + /*@}*/ + + /** \name Other assorted state (not pushed/popped on attribute stack) */ + /*@{*/ + struct gl_pixelmaps PixelMaps; + + struct gl_evaluators EvalMap; /**< All evaluators */ + struct gl_feedback Feedback; /**< Feedback */ + struct gl_selection Select; /**< Selection */ + + struct gl_program_state Program; /**< general program state */ + struct gl_vertex_program_state VertexProgram; + struct gl_fragment_program_state FragmentProgram; + struct gl_geometry_program_state GeometryProgram; + struct gl_ati_fragment_shader_state ATIFragmentShader; + + struct gl_shader_state Shader; /**< GLSL shader object state */ + struct gl_shader_compiler_options ShaderCompilerOptions[MESA_SHADER_TYPES]; + + struct gl_query_state Query; /**< occlusion, timer queries */ + + struct gl_transform_feedback TransformFeedback; + + struct gl_buffer_object *CopyReadBuffer; /**< GL_ARB_copy_buffer */ + struct gl_buffer_object *CopyWriteBuffer; /**< GL_ARB_copy_buffer */ + /*@}*/ + + struct gl_meta_state *Meta; /**< for "meta" operations */ + + /* GL_EXT_framebuffer_object */ + struct gl_renderbuffer *CurrentRenderbuffer; + + GLenum ErrorValue; /**< Last error code */ + + /** + * Recognize and silence repeated error debug messages in buggy apps. + */ + const char *ErrorDebugFmtString; + GLuint ErrorDebugCount; + + GLenum RenderMode; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */ + GLbitfield NewState; /**< bitwise-or of _NEW_* flags */ + + GLboolean ViewportInitialized; /**< has viewport size been initialized? */ + + GLbitfield varying_vp_inputs; /**< mask of VERT_BIT_* flags */ + + /** \name Derived state */ + /*@{*/ + /** Bitwise-or of DD_* flags. Note that this bitfield may be used before + * state validation so they need to always be current. + */ + GLbitfield _TriangleCaps; + GLbitfield _ImageTransferState;/**< bitwise-or of IMAGE_*_BIT flags */ + GLfloat _EyeZDir[3]; + GLfloat _ModelViewInvScale; + GLboolean _NeedEyeCoords; + GLboolean _ForceEyeCoords; + + GLuint TextureStateTimestamp; /**< detect changes to shared state */ + + struct gl_shine_tab *_ShineTable[2]; /**< Active shine tables */ + struct gl_shine_tab *_ShineTabList; /**< MRU list of inactive shine tables */ + /**@}*/ + + struct gl_list_extensions *ListExt; /**< driver dlist extensions */ + + /** \name For debugging/development only */ + /*@{*/ + GLboolean FirstTimeCurrent; + /*@}*/ + + /** software compression/decompression supported or not */ + GLboolean Mesa_DXTn; + + GLboolean TextureFormatSupported[MESA_FORMAT_COUNT]; + + /** + * Use dp4 (rather than mul/mad) instructions for position + * transformation? + */ + GLboolean mvp_with_dp4; + + /** + * \name Hooks for module contexts. + * + * These will eventually live in the driver or elsewhere. + */ + /*@{*/ + void *swrast_context; + void *swsetup_context; + void *swtnl_context; + void *swtnl_im; + struct st_context *st; + void *aelt_context; + /*@}*/ +}; + + +#ifdef DEBUG +extern int MESA_VERBOSE; +extern int MESA_DEBUG_FLAGS; +# define MESA_FUNCTION __FUNCTION__ +#else +# define MESA_VERBOSE 0 +# define MESA_DEBUG_FLAGS 0 +# define MESA_FUNCTION "a function" +# ifndef NDEBUG +# define NDEBUG +# endif +#endif + + +/** The MESA_VERBOSE var is a bitmask of these flags */ +enum _verbose +{ + VERBOSE_VARRAY = 0x0001, + VERBOSE_TEXTURE = 0x0002, + VERBOSE_MATERIAL = 0x0004, + VERBOSE_PIPELINE = 0x0008, + VERBOSE_DRIVER = 0x0010, + VERBOSE_STATE = 0x0020, + VERBOSE_API = 0x0040, + VERBOSE_DISPLAY_LIST = 0x0100, + VERBOSE_LIGHTING = 0x0200, + VERBOSE_PRIMS = 0x0400, + VERBOSE_VERTS = 0x0800, + VERBOSE_DISASSEM = 0x1000, + VERBOSE_DRAW = 0x2000, + VERBOSE_SWAPBUFFERS = 0x4000 +}; + + +/** The MESA_DEBUG_FLAGS var is a bitmask of these flags */ +enum _debug +{ + DEBUG_ALWAYS_FLUSH = 0x1 +}; + + + +#endif /* MTYPES_H */ diff --git a/mesalib/src/mesa/main/queryobj.c b/mesalib/src/mesa/main/queryobj.c index fa35c6ce5..25ec31fd4 100644 --- a/mesalib/src/mesa/main/queryobj.c +++ b/mesalib/src/mesa/main/queryobj.c @@ -1,623 +1,624 @@ -/* - * Mesa 3-D graphics library - * Version: 7.1 - * - * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "context.h" -#include "enums.h" -#include "hash.h" -#include "imports.h" -#include "queryobj.h" -#include "mfeatures.h" -#include "mtypes.h" -#include "main/dispatch.h" - - -#if FEATURE_queryobj - - -/** - * Allocate a new query object. This is a fallback routine called via - * ctx->Driver.NewQueryObject(). - * \param ctx - rendering context - * \param id - the new object's ID - * \return pointer to new query_object object or NULL if out of memory. - */ -static struct gl_query_object * -_mesa_new_query_object(struct gl_context *ctx, GLuint id) -{ - struct gl_query_object *q = MALLOC_STRUCT(gl_query_object); - (void) ctx; - if (q) { - q->Id = id; - q->Result = 0; - q->Active = GL_FALSE; - q->Ready = GL_TRUE; /* correct, see spec */ - } - return q; -} - - -/** - * Begin a query. Software driver fallback. - * Called via ctx->Driver.BeginQuery(). - */ -static void -_mesa_begin_query(struct gl_context *ctx, struct gl_query_object *q) -{ - /* no-op */ -} - - -/** - * End a query. Software driver fallback. - * Called via ctx->Driver.EndQuery(). - */ -static void -_mesa_end_query(struct gl_context *ctx, struct gl_query_object *q) -{ - q->Ready = GL_TRUE; -} - - -/** - * Wait for query to complete. Software driver fallback. - * Called via ctx->Driver.WaitQuery(). - */ -static void -_mesa_wait_query(struct gl_context *ctx, struct gl_query_object *q) -{ - /* For software drivers, _mesa_end_query() should have completed the query. - * For real hardware, implement a proper WaitQuery() driver function, - * which may require issuing a flush. - */ - assert(q->Ready); -} - - -/** - * Check if a query results are ready. Software driver fallback. - * Called via ctx->Driver.CheckQuery(). - */ -static void -_mesa_check_query(struct gl_context *ctx, struct gl_query_object *q) -{ - /* No-op for sw rendering. - * HW drivers may need to flush at this time. - */ -} - - -/** - * Delete a query object. Called via ctx->Driver.DeleteQuery(). - * Not removed from hash table here. - */ -static void -_mesa_delete_query(struct gl_context *ctx, struct gl_query_object *q) -{ - free(q); -} - - -void -_mesa_init_query_object_functions(struct dd_function_table *driver) -{ - driver->NewQueryObject = _mesa_new_query_object; - driver->DeleteQuery = _mesa_delete_query; - driver->BeginQuery = _mesa_begin_query; - driver->EndQuery = _mesa_end_query; - driver->WaitQuery = _mesa_wait_query; - driver->CheckQuery = _mesa_check_query; -} - - -/** - * Return pointer to the query object binding point for the given target. - * \return NULL if invalid target, else the address of binding point - */ -static struct gl_query_object ** -get_query_binding_point(struct gl_context *ctx, GLenum target) -{ - switch (target) { - case GL_SAMPLES_PASSED_ARB: - if (ctx->Extensions.ARB_occlusion_query) - return &ctx->Query.CurrentOcclusionObject; - else - return NULL; - case GL_ANY_SAMPLES_PASSED: - if (ctx->Extensions.ARB_occlusion_query2) - return &ctx->Query.CurrentOcclusionObject; - else - return NULL; - case GL_TIME_ELAPSED_EXT: - if (ctx->Extensions.EXT_timer_query) - return &ctx->Query.CurrentTimerObject; - else - return NULL; -#if FEATURE_EXT_transform_feedback - case GL_PRIMITIVES_GENERATED: - if (ctx->Extensions.EXT_transform_feedback) - return &ctx->Query.PrimitivesGenerated; - else - return NULL; - case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN: - if (ctx->Extensions.EXT_transform_feedback) - return &ctx->Query.PrimitivesWritten; - else - return NULL; -#endif - default: - return NULL; - } -} - - -void GLAPIENTRY -_mesa_GenQueriesARB(GLsizei n, GLuint *ids) -{ - GLuint first; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glGenQueries(%d)\n", n); - - if (n < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGenQueriesARB(n < 0)"); - return; - } - - /* No query objects can be active at this time! */ - if (ctx->Query.CurrentOcclusionObject || - ctx->Query.CurrentTimerObject) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGenQueriesARB"); - return; - } - - first = _mesa_HashFindFreeKeyBlock(ctx->Query.QueryObjects, n); - if (first) { - GLsizei i; - for (i = 0; i < n; i++) { - struct gl_query_object *q - = ctx->Driver.NewQueryObject(ctx, first + i); - if (!q) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenQueriesARB"); - return; - } - ids[i] = first + i; - _mesa_HashInsert(ctx->Query.QueryObjects, first + i, q); - } - } -} - - -void GLAPIENTRY -_mesa_DeleteQueriesARB(GLsizei n, const GLuint *ids) -{ - GLint i; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glDeleeteQueries(%d)\n", n); - - if (n < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glDeleteQueriesARB(n < 0)"); - return; - } - - /* No query objects can be active at this time! */ - if (ctx->Query.CurrentOcclusionObject || - ctx->Query.CurrentTimerObject) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glDeleteQueriesARB"); - return; - } - - for (i = 0; i < n; i++) { - if (ids[i] > 0) { - struct gl_query_object *q = _mesa_lookup_query_object(ctx, ids[i]); - if (q) { - ASSERT(!q->Active); /* should be caught earlier */ - _mesa_HashRemove(ctx->Query.QueryObjects, ids[i]); - ctx->Driver.DeleteQuery(ctx, q); - } - } - } -} - - -GLboolean GLAPIENTRY -_mesa_IsQueryARB(GLuint id) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glIsQuery(%u)\n", id); - - if (id && _mesa_lookup_query_object(ctx, id)) - return GL_TRUE; - else - return GL_FALSE; -} - - -static void GLAPIENTRY -_mesa_BeginQueryARB(GLenum target, GLuint id) -{ - struct gl_query_object *q, **bindpt; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glBeginQuery(%s, %u)\n", - _mesa_lookup_enum_by_nr(target), id); - - FLUSH_VERTICES(ctx, _NEW_DEPTH); - - bindpt = get_query_binding_point(ctx, target); - if (!bindpt) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBeginQueryARB(target)"); - return; - } - - if (id == 0) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glBeginQueryARB(id==0)"); - return; - } - - q = _mesa_lookup_query_object(ctx, id); - if (!q) { - /* create new object */ - q = ctx->Driver.NewQueryObject(ctx, id); - if (!q) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBeginQueryARB"); - return; - } - _mesa_HashInsert(ctx->Query.QueryObjects, id, q); - } - else { - /* pre-existing object */ - if (q->Active) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBeginQueryARB(query already active)"); - return; - } - } - - q->Target = target; - q->Active = GL_TRUE; - q->Result = 0; - q->Ready = GL_FALSE; - - /* XXX should probably refcount query objects */ - *bindpt = q; - - ctx->Driver.BeginQuery(ctx, q); -} - - -static void GLAPIENTRY -_mesa_EndQueryARB(GLenum target) -{ - struct gl_query_object *q, **bindpt; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glEndQuery(%s)\n", _mesa_lookup_enum_by_nr(target)); - - FLUSH_VERTICES(ctx, _NEW_DEPTH); - - bindpt = get_query_binding_point(ctx, target); - if (!bindpt) { - _mesa_error(ctx, GL_INVALID_ENUM, "glEndQueryARB(target)"); - return; - } - - /* XXX should probably refcount query objects */ - q = *bindpt; - *bindpt = NULL; - - if (!q || !q->Active) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glEndQueryARB(no matching glBeginQueryARB)"); - return; - } - - q->Active = GL_FALSE; - ctx->Driver.EndQuery(ctx, q); -} - - -void GLAPIENTRY -_mesa_GetQueryivARB(GLenum target, GLenum pname, GLint *params) -{ - struct gl_query_object *q, **bindpt; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glGetQueryiv(%s, %s)\n", - _mesa_lookup_enum_by_nr(target), - _mesa_lookup_enum_by_nr(pname)); - - bindpt = get_query_binding_point(ctx, target); - if (!bindpt) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryARB(target)"); - return; - } - - q = *bindpt; - - switch (pname) { - case GL_QUERY_COUNTER_BITS_ARB: - *params = 8 * sizeof(q->Result); - break; - case GL_CURRENT_QUERY_ARB: - *params = q ? q->Id : 0; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryivARB(pname)"); - return; - } -} - - -void GLAPIENTRY -_mesa_GetQueryObjectivARB(GLuint id, GLenum pname, GLint *params) -{ - struct gl_query_object *q = NULL; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glGetQueryObjectiv(%u, %s)\n", id, - _mesa_lookup_enum_by_nr(pname)); - - if (id) - q = _mesa_lookup_query_object(ctx, id); - - if (!q || q->Active) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetQueryObjectivARB(id=%d is invalid or active)", id); - return; - } - - switch (pname) { - case GL_QUERY_RESULT_ARB: - if (!q->Ready) - ctx->Driver.WaitQuery(ctx, q); - /* if result is too large for returned type, clamp to max value */ - if (q->Target == GL_ANY_SAMPLES_PASSED) { - if (q->Result) - *params = GL_TRUE; - else - *params = GL_FALSE; - } else { - if (q->Result > 0x7fffffff) { - *params = 0x7fffffff; - } - else { - *params = (GLint)q->Result; - } - } - break; - case GL_QUERY_RESULT_AVAILABLE_ARB: - if (!q->Ready) - ctx->Driver.CheckQuery( ctx, q ); - *params = q->Ready; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjectivARB(pname)"); - return; - } -} - - -void GLAPIENTRY -_mesa_GetQueryObjectuivARB(GLuint id, GLenum pname, GLuint *params) -{ - struct gl_query_object *q = NULL; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glGetQueryObjectuiv(%u, %s)\n", id, - _mesa_lookup_enum_by_nr(pname)); - - if (id) - q = _mesa_lookup_query_object(ctx, id); - - if (!q || q->Active) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetQueryObjectuivARB(id=%d is invalid or active)", id); - return; - } - - switch (pname) { - case GL_QUERY_RESULT_ARB: - if (!q->Ready) - ctx->Driver.WaitQuery(ctx, q); - /* if result is too large for returned type, clamp to max value */ - if (q->Target == GL_ANY_SAMPLES_PASSED) { - if (q->Result) - *params = GL_TRUE; - else - *params = GL_FALSE; - } else { - if (q->Result > 0xffffffff) { - *params = 0xffffffff; - } - else { - *params = (GLuint)q->Result; - } - } - break; - case GL_QUERY_RESULT_AVAILABLE_ARB: - if (!q->Ready) - ctx->Driver.CheckQuery( ctx, q ); - *params = q->Ready; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjectuivARB(pname)"); - return; - } -} - - -/** - * New with GL_EXT_timer_query - */ -static void GLAPIENTRY -_mesa_GetQueryObjecti64vEXT(GLuint id, GLenum pname, GLint64EXT *params) -{ - struct gl_query_object *q = NULL; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glGetQueryObjecti64v(%u, %s)\n", id, - _mesa_lookup_enum_by_nr(pname)); - - if (id) - q = _mesa_lookup_query_object(ctx, id); - - if (!q || q->Active) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetQueryObjectui64vARB(id=%d is invalid or active)", id); - return; - } - - switch (pname) { - case GL_QUERY_RESULT_ARB: - if (!q->Ready) - ctx->Driver.WaitQuery(ctx, q); - *params = q->Result; - break; - case GL_QUERY_RESULT_AVAILABLE_ARB: - if (!q->Ready) - ctx->Driver.CheckQuery( ctx, q ); - *params = q->Ready; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjecti64vARB(pname)"); - return; - } -} - - -/** - * New with GL_EXT_timer_query - */ -static void GLAPIENTRY -_mesa_GetQueryObjectui64vEXT(GLuint id, GLenum pname, GLuint64EXT *params) -{ - struct gl_query_object *q = NULL; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glGetQueryObjectui64v(%u, %s)\n", id, - _mesa_lookup_enum_by_nr(pname)); - - if (id) - q = _mesa_lookup_query_object(ctx, id); - - if (!q || q->Active) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetQueryObjectuui64vARB(id=%d is invalid or active)", id); - return; - } - - switch (pname) { - case GL_QUERY_RESULT_ARB: - if (!q->Ready) - ctx->Driver.WaitQuery(ctx, q); - *params = q->Result; - break; - case GL_QUERY_RESULT_AVAILABLE_ARB: - if (!q->Ready) - ctx->Driver.CheckQuery( ctx, q ); - *params = q->Ready; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjectui64vARB(pname)"); - return; - } -} - - -void -_mesa_init_queryobj_dispatch(struct _glapi_table *disp) -{ - SET_GenQueriesARB(disp, _mesa_GenQueriesARB); - SET_DeleteQueriesARB(disp, _mesa_DeleteQueriesARB); - SET_IsQueryARB(disp, _mesa_IsQueryARB); - SET_BeginQueryARB(disp, _mesa_BeginQueryARB); - SET_EndQueryARB(disp, _mesa_EndQueryARB); - SET_GetQueryivARB(disp, _mesa_GetQueryivARB); - SET_GetQueryObjectivARB(disp, _mesa_GetQueryObjectivARB); - SET_GetQueryObjectuivARB(disp, _mesa_GetQueryObjectuivARB); - - SET_GetQueryObjecti64vEXT(disp, _mesa_GetQueryObjecti64vEXT); - SET_GetQueryObjectui64vEXT(disp, _mesa_GetQueryObjectui64vEXT); -} - - -#endif /* FEATURE_queryobj */ - - -/** - * Allocate/init the context state related to query objects. - */ -void -_mesa_init_queryobj(struct gl_context *ctx) -{ - ctx->Query.QueryObjects = _mesa_NewHashTable(); - ctx->Query.CurrentOcclusionObject = NULL; -} - - -/** - * Callback for deleting a query object. Called by _mesa_HashDeleteAll(). - */ -static void -delete_queryobj_cb(GLuint id, void *data, void *userData) -{ - struct gl_query_object *q= (struct gl_query_object *) data; - struct gl_context *ctx = (struct gl_context *)userData; - ctx->Driver.DeleteQuery(ctx, q); -} - - -/** - * Free the context state related to query objects. - */ -void -_mesa_free_queryobj_data(struct gl_context *ctx) -{ - _mesa_HashDeleteAll(ctx->Query.QueryObjects, delete_queryobj_cb, ctx); - _mesa_DeleteHashTable(ctx->Query.QueryObjects); -} +/* + * Mesa 3-D graphics library + * Version: 7.1 + * + * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +#include "glheader.h" +#include "context.h" +#include "enums.h" +#include "hash.h" +#include "imports.h" +#include "queryobj.h" +#include "mfeatures.h" +#include "mtypes.h" +#include "main/dispatch.h" + + +#if FEATURE_queryobj + + +/** + * Allocate a new query object. This is a fallback routine called via + * ctx->Driver.NewQueryObject(). + * \param ctx - rendering context + * \param id - the new object's ID + * \return pointer to new query_object object or NULL if out of memory. + */ +static struct gl_query_object * +_mesa_new_query_object(struct gl_context *ctx, GLuint id) +{ + struct gl_query_object *q = MALLOC_STRUCT(gl_query_object); + (void) ctx; + if (q) { + q->Id = id; + q->Result = 0; + q->Active = GL_FALSE; + q->Ready = GL_TRUE; /* correct, see spec */ + } + return q; +} + + +/** + * Begin a query. Software driver fallback. + * Called via ctx->Driver.BeginQuery(). + */ +static void +_mesa_begin_query(struct gl_context *ctx, struct gl_query_object *q) +{ + /* no-op */ +} + + +/** + * End a query. Software driver fallback. + * Called via ctx->Driver.EndQuery(). + */ +static void +_mesa_end_query(struct gl_context *ctx, struct gl_query_object *q) +{ + q->Ready = GL_TRUE; +} + + +/** + * Wait for query to complete. Software driver fallback. + * Called via ctx->Driver.WaitQuery(). + */ +static void +_mesa_wait_query(struct gl_context *ctx, struct gl_query_object *q) +{ + /* For software drivers, _mesa_end_query() should have completed the query. + * For real hardware, implement a proper WaitQuery() driver function, + * which may require issuing a flush. + */ + assert(q->Ready); +} + + +/** + * Check if a query results are ready. Software driver fallback. + * Called via ctx->Driver.CheckQuery(). + */ +static void +_mesa_check_query(struct gl_context *ctx, struct gl_query_object *q) +{ + /* No-op for sw rendering. + * HW drivers may need to flush at this time. + */ +} + + +/** + * Delete a query object. Called via ctx->Driver.DeleteQuery(). + * Not removed from hash table here. + */ +static void +_mesa_delete_query(struct gl_context *ctx, struct gl_query_object *q) +{ + free(q); +} + + +void +_mesa_init_query_object_functions(struct dd_function_table *driver) +{ + driver->NewQueryObject = _mesa_new_query_object; + driver->DeleteQuery = _mesa_delete_query; + driver->BeginQuery = _mesa_begin_query; + driver->EndQuery = _mesa_end_query; + driver->WaitQuery = _mesa_wait_query; + driver->CheckQuery = _mesa_check_query; +} + + +/** + * Return pointer to the query object binding point for the given target. + * \return NULL if invalid target, else the address of binding point + */ +static struct gl_query_object ** +get_query_binding_point(struct gl_context *ctx, GLenum target) +{ + switch (target) { + case GL_SAMPLES_PASSED_ARB: + if (ctx->Extensions.ARB_occlusion_query) + return &ctx->Query.CurrentOcclusionObject; + else + return NULL; + case GL_ANY_SAMPLES_PASSED: + if (ctx->Extensions.ARB_occlusion_query2) + return &ctx->Query.CurrentOcclusionObject; + else + return NULL; + case GL_TIME_ELAPSED_EXT: + if (ctx->Extensions.EXT_timer_query) + return &ctx->Query.CurrentTimerObject; + else + return NULL; +#if FEATURE_EXT_transform_feedback + case GL_PRIMITIVES_GENERATED: + if (ctx->Extensions.EXT_transform_feedback) + return &ctx->Query.PrimitivesGenerated; + else + return NULL; + case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN: + if (ctx->Extensions.EXT_transform_feedback) + return &ctx->Query.PrimitivesWritten; + else + return NULL; +#endif + default: + return NULL; + } +} + + +void GLAPIENTRY +_mesa_GenQueriesARB(GLsizei n, GLuint *ids) +{ + GLuint first; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glGenQueries(%d)\n", n); + + if (n < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGenQueriesARB(n < 0)"); + return; + } + + /* No query objects can be active at this time! */ + if (ctx->Query.CurrentOcclusionObject || + ctx->Query.CurrentTimerObject) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGenQueriesARB"); + return; + } + + first = _mesa_HashFindFreeKeyBlock(ctx->Query.QueryObjects, n); + if (first) { + GLsizei i; + for (i = 0; i < n; i++) { + struct gl_query_object *q + = ctx->Driver.NewQueryObject(ctx, first + i); + if (!q) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenQueriesARB"); + return; + } + ids[i] = first + i; + _mesa_HashInsert(ctx->Query.QueryObjects, first + i, q); + } + } +} + + +void GLAPIENTRY +_mesa_DeleteQueriesARB(GLsizei n, const GLuint *ids) +{ + GLint i; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + FLUSH_VERTICES(ctx, 0); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glDeleeteQueries(%d)\n", n); + + if (n < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glDeleteQueriesARB(n < 0)"); + return; + } + + /* No query objects can be active at this time! */ + if (ctx->Query.CurrentOcclusionObject || + ctx->Query.CurrentTimerObject) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glDeleteQueriesARB"); + return; + } + + for (i = 0; i < n; i++) { + if (ids[i] > 0) { + struct gl_query_object *q = _mesa_lookup_query_object(ctx, ids[i]); + if (q) { + ASSERT(!q->Active); /* should be caught earlier */ + _mesa_HashRemove(ctx->Query.QueryObjects, ids[i]); + ctx->Driver.DeleteQuery(ctx, q); + } + } + } +} + + +GLboolean GLAPIENTRY +_mesa_IsQueryARB(GLuint id) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glIsQuery(%u)\n", id); + + if (id && _mesa_lookup_query_object(ctx, id)) + return GL_TRUE; + else + return GL_FALSE; +} + + +static void GLAPIENTRY +_mesa_BeginQueryARB(GLenum target, GLuint id) +{ + struct gl_query_object *q, **bindpt; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glBeginQuery(%s, %u)\n", + _mesa_lookup_enum_by_nr(target), id); + + FLUSH_VERTICES(ctx, _NEW_DEPTH); + + bindpt = get_query_binding_point(ctx, target); + if (!bindpt) { + _mesa_error(ctx, GL_INVALID_ENUM, "glBeginQueryARB(target)"); + return; + } + + if (id == 0) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glBeginQueryARB(id==0)"); + return; + } + + q = _mesa_lookup_query_object(ctx, id); + if (!q) { + /* create new object */ + q = ctx->Driver.NewQueryObject(ctx, id); + if (!q) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBeginQueryARB"); + return; + } + _mesa_HashInsert(ctx->Query.QueryObjects, id, q); + } + else { + /* pre-existing object */ + if (q->Active) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBeginQueryARB(query already active)"); + return; + } + } + + q->Target = target; + q->Active = GL_TRUE; + q->Result = 0; + q->Ready = GL_FALSE; + + /* XXX should probably refcount query objects */ + *bindpt = q; + + ctx->Driver.BeginQuery(ctx, q); +} + + +static void GLAPIENTRY +_mesa_EndQueryARB(GLenum target) +{ + struct gl_query_object *q, **bindpt; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glEndQuery(%s)\n", _mesa_lookup_enum_by_nr(target)); + + FLUSH_VERTICES(ctx, _NEW_DEPTH); + + bindpt = get_query_binding_point(ctx, target); + if (!bindpt) { + _mesa_error(ctx, GL_INVALID_ENUM, "glEndQueryARB(target)"); + return; + } + + /* XXX should probably refcount query objects */ + q = *bindpt; + *bindpt = NULL; + + if (!q || !q->Active) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glEndQueryARB(no matching glBeginQueryARB)"); + return; + } + + q->Active = GL_FALSE; + ctx->Driver.EndQuery(ctx, q); +} + + +void GLAPIENTRY +_mesa_GetQueryivARB(GLenum target, GLenum pname, GLint *params) +{ + struct gl_query_object *q, **bindpt; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glGetQueryiv(%s, %s)\n", + _mesa_lookup_enum_by_nr(target), + _mesa_lookup_enum_by_nr(pname)); + + bindpt = get_query_binding_point(ctx, target); + if (!bindpt) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryARB(target)"); + return; + } + + q = *bindpt; + + switch (pname) { + case GL_QUERY_COUNTER_BITS_ARB: + *params = 8 * sizeof(q->Result); + break; + case GL_CURRENT_QUERY_ARB: + *params = q ? q->Id : 0; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryivARB(pname)"); + return; + } +} + + +void GLAPIENTRY +_mesa_GetQueryObjectivARB(GLuint id, GLenum pname, GLint *params) +{ + struct gl_query_object *q = NULL; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glGetQueryObjectiv(%u, %s)\n", id, + _mesa_lookup_enum_by_nr(pname)); + + if (id) + q = _mesa_lookup_query_object(ctx, id); + + if (!q || q->Active) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetQueryObjectivARB(id=%d is invalid or active)", id); + return; + } + + switch (pname) { + case GL_QUERY_RESULT_ARB: + if (!q->Ready) + ctx->Driver.WaitQuery(ctx, q); + /* if result is too large for returned type, clamp to max value */ + if (q->Target == GL_ANY_SAMPLES_PASSED) { + if (q->Result) + *params = GL_TRUE; + else + *params = GL_FALSE; + } else { + if (q->Result > 0x7fffffff) { + *params = 0x7fffffff; + } + else { + *params = (GLint)q->Result; + } + } + break; + case GL_QUERY_RESULT_AVAILABLE_ARB: + if (!q->Ready) + ctx->Driver.CheckQuery( ctx, q ); + *params = q->Ready; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjectivARB(pname)"); + return; + } +} + + +void GLAPIENTRY +_mesa_GetQueryObjectuivARB(GLuint id, GLenum pname, GLuint *params) +{ + struct gl_query_object *q = NULL; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glGetQueryObjectuiv(%u, %s)\n", id, + _mesa_lookup_enum_by_nr(pname)); + + if (id) + q = _mesa_lookup_query_object(ctx, id); + + if (!q || q->Active) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetQueryObjectuivARB(id=%d is invalid or active)", id); + return; + } + + switch (pname) { + case GL_QUERY_RESULT_ARB: + if (!q->Ready) + ctx->Driver.WaitQuery(ctx, q); + /* if result is too large for returned type, clamp to max value */ + if (q->Target == GL_ANY_SAMPLES_PASSED) { + if (q->Result) + *params = GL_TRUE; + else + *params = GL_FALSE; + } else { + if (q->Result > 0xffffffff) { + *params = 0xffffffff; + } + else { + *params = (GLuint)q->Result; + } + } + break; + case GL_QUERY_RESULT_AVAILABLE_ARB: + if (!q->Ready) + ctx->Driver.CheckQuery( ctx, q ); + *params = q->Ready; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjectuivARB(pname)"); + return; + } +} + + +/** + * New with GL_EXT_timer_query + */ +static void GLAPIENTRY +_mesa_GetQueryObjecti64vEXT(GLuint id, GLenum pname, GLint64EXT *params) +{ + struct gl_query_object *q = NULL; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glGetQueryObjecti64v(%u, %s)\n", id, + _mesa_lookup_enum_by_nr(pname)); + + if (id) + q = _mesa_lookup_query_object(ctx, id); + + if (!q || q->Active) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetQueryObjectui64vARB(id=%d is invalid or active)", id); + return; + } + + switch (pname) { + case GL_QUERY_RESULT_ARB: + if (!q->Ready) + ctx->Driver.WaitQuery(ctx, q); + *params = q->Result; + break; + case GL_QUERY_RESULT_AVAILABLE_ARB: + if (!q->Ready) + ctx->Driver.CheckQuery( ctx, q ); + *params = q->Ready; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjecti64vARB(pname)"); + return; + } +} + + +/** + * New with GL_EXT_timer_query + */ +static void GLAPIENTRY +_mesa_GetQueryObjectui64vEXT(GLuint id, GLenum pname, GLuint64EXT *params) +{ + struct gl_query_object *q = NULL; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glGetQueryObjectui64v(%u, %s)\n", id, + _mesa_lookup_enum_by_nr(pname)); + + if (id) + q = _mesa_lookup_query_object(ctx, id); + + if (!q || q->Active) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetQueryObjectuui64vARB(id=%d is invalid or active)", id); + return; + } + + switch (pname) { + case GL_QUERY_RESULT_ARB: + if (!q->Ready) + ctx->Driver.WaitQuery(ctx, q); + *params = q->Result; + break; + case GL_QUERY_RESULT_AVAILABLE_ARB: + if (!q->Ready) + ctx->Driver.CheckQuery( ctx, q ); + *params = q->Ready; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glGetQueryObjectui64vARB(pname)"); + return; + } +} + + +void +_mesa_init_queryobj_dispatch(struct _glapi_table *disp) +{ + SET_GenQueriesARB(disp, _mesa_GenQueriesARB); + SET_DeleteQueriesARB(disp, _mesa_DeleteQueriesARB); + SET_IsQueryARB(disp, _mesa_IsQueryARB); + SET_BeginQueryARB(disp, _mesa_BeginQueryARB); + SET_EndQueryARB(disp, _mesa_EndQueryARB); + SET_GetQueryivARB(disp, _mesa_GetQueryivARB); + SET_GetQueryObjectivARB(disp, _mesa_GetQueryObjectivARB); + SET_GetQueryObjectuivARB(disp, _mesa_GetQueryObjectuivARB); + + SET_GetQueryObjecti64vEXT(disp, _mesa_GetQueryObjecti64vEXT); + SET_GetQueryObjectui64vEXT(disp, _mesa_GetQueryObjectui64vEXT); +} + + +#endif /* FEATURE_queryobj */ + + +/** + * Allocate/init the context state related to query objects. + */ +void +_mesa_init_queryobj(struct gl_context *ctx) +{ + ctx->Query.QueryObjects = _mesa_NewHashTable(); + ctx->Query.CurrentOcclusionObject = NULL; +} + + +/** + * Callback for deleting a query object. Called by _mesa_HashDeleteAll(). + */ +static void +delete_queryobj_cb(GLuint id, void *data, void *userData) +{ + struct gl_query_object *q= (struct gl_query_object *) data; + struct gl_context *ctx = (struct gl_context *)userData; + ctx->Driver.DeleteQuery(ctx, q); +} + + +/** + * Free the context state related to query objects. + */ +void +_mesa_free_queryobj_data(struct gl_context *ctx) +{ + _mesa_HashDeleteAll(ctx->Query.QueryObjects, delete_queryobj_cb, ctx); + _mesa_DeleteHashTable(ctx->Query.QueryObjects); +} diff --git a/mesalib/src/mesa/main/shaderapi.c b/mesalib/src/mesa/main/shaderapi.c index 11b0f884f..3609577b7 100644 --- a/mesalib/src/mesa/main/shaderapi.c +++ b/mesalib/src/mesa/main/shaderapi.c @@ -1,1942 +1,1945 @@ -/* - * Mesa 3-D graphics library - * - * Copyright (C) 2004-2008 Brian Paul All Rights Reserved. - * Copyright (C) 2009-2010 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/** - * \file shaderapi.c - * \author Brian Paul - * - * Implementation of GLSL-related API functions. - * The glUniform* functions are in uniforms.c - * - * - * XXX things to do: - * 1. Check that the right error code is generated for all _mesa_error() calls. - * 2. Insert FLUSH_VERTICES calls in various places - */ - - -#include "main/glheader.h" -#include "main/context.h" -#include "main/dispatch.h" -#include "main/enums.h" -#include "main/hash.h" -#include "main/mfeatures.h" -#include "main/mtypes.h" -#include "main/shaderapi.h" -#include "main/shaderobj.h" -#include "program/program.h" -#include "program/prog_parameter.h" -#include "program/prog_uniform.h" -#include "ralloc.h" -#include -#include "../glsl/glsl_parser_extras.h" - -/** Define this to enable shader substitution (see below) */ -#define SHADER_SUBST 0 - - -/** - * Return mask of GLSL_x flags by examining the MESA_GLSL env var. - */ -static GLbitfield -get_shader_flags(void) -{ - GLbitfield flags = 0x0; - const char *env = _mesa_getenv("MESA_GLSL"); - - if (env) { - if (strstr(env, "dump")) - flags |= GLSL_DUMP; - if (strstr(env, "log")) - flags |= GLSL_LOG; - if (strstr(env, "nopvert")) - flags |= GLSL_NOP_VERT; - if (strstr(env, "nopfrag")) - flags |= GLSL_NOP_FRAG; - if (strstr(env, "nopt")) - flags |= GLSL_NO_OPT; - else if (strstr(env, "opt")) - flags |= GLSL_OPT; - if (strstr(env, "uniform")) - flags |= GLSL_UNIFORMS; - if (strstr(env, "useprog")) - flags |= GLSL_USE_PROG; - } - - return flags; -} - - -/** - * Initialize context's shader state. - */ -void -_mesa_init_shader_state(struct gl_context *ctx) -{ - /* Device drivers may override these to control what kind of instructions - * are generated by the GLSL compiler. - */ - struct gl_shader_compiler_options options; - gl_shader_type sh; - - memset(&options, 0, sizeof(options)); - options.MaxUnrollIterations = 32; - - /* Default pragma settings */ - options.DefaultPragmas.Optimize = GL_TRUE; - - for (sh = 0; sh < MESA_SHADER_TYPES; ++sh) - memcpy(&ctx->ShaderCompilerOptions[sh], &options, sizeof(options)); - - ctx->Shader.Flags = get_shader_flags(); -} - - -/** - * Free the per-context shader-related state. - */ -void -_mesa_free_shader_state(struct gl_context *ctx) -{ - _mesa_reference_shader_program(ctx, &ctx->Shader.CurrentVertexProgram, NULL); - _mesa_reference_shader_program(ctx, &ctx->Shader.CurrentGeometryProgram, - NULL); - _mesa_reference_shader_program(ctx, &ctx->Shader.CurrentFragmentProgram, - NULL); - _mesa_reference_shader_program(ctx, &ctx->Shader.ActiveProgram, NULL); -} - - -/** - * Return the size of the given GLSL datatype, in floats (components). - */ -GLint -_mesa_sizeof_glsl_type(GLenum type) -{ - switch (type) { - case GL_FLOAT: - case GL_INT: - case GL_BOOL: - case GL_SAMPLER_1D: - case GL_SAMPLER_2D: - case GL_SAMPLER_3D: - case GL_SAMPLER_CUBE: - case GL_SAMPLER_1D_SHADOW: - case GL_SAMPLER_2D_SHADOW: - case GL_SAMPLER_2D_RECT_ARB: - case GL_SAMPLER_2D_RECT_SHADOW_ARB: - case GL_SAMPLER_1D_ARRAY_EXT: - case GL_SAMPLER_2D_ARRAY_EXT: - case GL_SAMPLER_1D_ARRAY_SHADOW_EXT: - case GL_SAMPLER_2D_ARRAY_SHADOW_EXT: - case GL_SAMPLER_CUBE_SHADOW_EXT: - return 1; - case GL_FLOAT_VEC2: - case GL_INT_VEC2: - case GL_UNSIGNED_INT_VEC2: - case GL_BOOL_VEC2: - return 2; - case GL_FLOAT_VEC3: - case GL_INT_VEC3: - case GL_UNSIGNED_INT_VEC3: - case GL_BOOL_VEC3: - return 3; - case GL_FLOAT_VEC4: - case GL_INT_VEC4: - case GL_UNSIGNED_INT_VEC4: - case GL_BOOL_VEC4: - return 4; - case GL_FLOAT_MAT2: - case GL_FLOAT_MAT2x3: - case GL_FLOAT_MAT2x4: - return 8; /* two float[4] vectors */ - case GL_FLOAT_MAT3: - case GL_FLOAT_MAT3x2: - case GL_FLOAT_MAT3x4: - return 12; /* three float[4] vectors */ - case GL_FLOAT_MAT4: - case GL_FLOAT_MAT4x2: - case GL_FLOAT_MAT4x3: - return 16; /* four float[4] vectors */ - default: - _mesa_problem(NULL, "Invalid type in _mesa_sizeof_glsl_type()"); - return 1; - } -} - - -/** - * Copy string from to , up to maxLength characters, returning - * length of in . - * \param src the strings source - * \param maxLength max chars to copy - * \param length returns number of chars copied - * \param dst the string destination - */ -void -_mesa_copy_string(GLchar *dst, GLsizei maxLength, - GLsizei *length, const GLchar *src) -{ - GLsizei len; - for (len = 0; len < maxLength - 1 && src && src[len]; len++) - dst[len] = src[len]; - if (maxLength > 0) - dst[len] = 0; - if (length) - *length = len; -} - - - -/** - * Confirm that the a shader type is valid and supported by the implementation - * - * \param ctx Current GL context - * \param type Shader target - * - */ -static bool -validate_shader_target(const struct gl_context *ctx, GLenum type) -{ - switch (type) { -#if FEATURE_ARB_fragment_shader - case GL_FRAGMENT_SHADER: - return ctx->Extensions.ARB_fragment_shader; -#endif -#if FEATURE_ARB_vertex_shader - case GL_VERTEX_SHADER: - return ctx->Extensions.ARB_vertex_shader; -#endif -#if FEATURE_ARB_geometry_shader4 - case GL_GEOMETRY_SHADER_ARB: - return ctx->Extensions.ARB_geometry_shader4; -#endif - default: - return false; - } -} - - -/** - * Find the length of the longest transform feedback varying name - * which was specified with glTransformFeedbackVaryings(). - */ -static GLint -longest_feedback_varying_name(const struct gl_shader_program *shProg) -{ - GLuint i; - GLint max = 0; - for (i = 0; i < shProg->TransformFeedback.NumVarying; i++) { - GLint len = strlen(shProg->TransformFeedback.VaryingNames[i]); - if (len > max) - max = len; - } - return max; -} - - - -static GLboolean -is_program(struct gl_context *ctx, GLuint name) -{ - struct gl_shader_program *shProg = _mesa_lookup_shader_program(ctx, name); - return shProg ? GL_TRUE : GL_FALSE; -} - - -static GLboolean -is_shader(struct gl_context *ctx, GLuint name) -{ - struct gl_shader *shader = _mesa_lookup_shader(ctx, name); - return shader ? GL_TRUE : GL_FALSE; -} - - -/** - * Attach shader to a shader program. - */ -static void -attach_shader(struct gl_context *ctx, GLuint program, GLuint shader) -{ - struct gl_shader_program *shProg; - struct gl_shader *sh; - GLuint i, n; - - shProg = _mesa_lookup_shader_program_err(ctx, program, "glAttachShader"); - if (!shProg) - return; - - sh = _mesa_lookup_shader_err(ctx, shader, "glAttachShader"); - if (!sh) { - return; - } - - n = shProg->NumShaders; - for (i = 0; i < n; i++) { - if (shProg->Shaders[i] == sh) { - /* The shader is already attched to this program. The - * GL_ARB_shader_objects spec says: - * - * "The error INVALID_OPERATION is generated by AttachObjectARB - * if is already attached to ." - */ - _mesa_error(ctx, GL_INVALID_OPERATION, "glAttachShader"); - return; - } - } - - /* grow list */ - shProg->Shaders = (struct gl_shader **) - _mesa_realloc(shProg->Shaders, - n * sizeof(struct gl_shader *), - (n + 1) * sizeof(struct gl_shader *)); - if (!shProg->Shaders) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glAttachShader"); - return; - } - - /* append */ - shProg->Shaders[n] = NULL; /* since realloc() didn't zero the new space */ - _mesa_reference_shader(ctx, &shProg->Shaders[n], sh); - shProg->NumShaders++; -} - - -static GLint -get_attrib_location(struct gl_context *ctx, GLuint program, const GLchar *name) -{ - struct gl_shader_program *shProg - = _mesa_lookup_shader_program_err(ctx, program, "glGetAttribLocation"); - - if (!shProg) { - return -1; - } - - if (!shProg->LinkStatus) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetAttribLocation(program not linked)"); - return -1; - } - - if (!name) - return -1; - - if (shProg->VertexProgram) { - const struct gl_program_parameter_list *attribs = - shProg->VertexProgram->Base.Attributes; - if (attribs) { - GLint i = _mesa_lookup_parameter_index(attribs, -1, name); - if (i >= 0) { - return attribs->Parameters[i].StateIndexes[0]; - } - } - } - return -1; -} - - -static void -bind_attrib_location(struct gl_context *ctx, GLuint program, GLuint index, - const GLchar *name) -{ - struct gl_shader_program *shProg; - const GLint size = -1; /* unknown size */ - GLint i, oldIndex; - GLenum datatype = GL_FLOAT_VEC4; - - shProg = _mesa_lookup_shader_program_err(ctx, program, - "glBindAttribLocation"); - if (!shProg) { - return; - } - - if (!name) - return; - - if (strncmp(name, "gl_", 3) == 0) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBindAttribLocation(illegal name)"); - return; - } - - if (index >= ctx->Const.VertexProgram.MaxAttribs) { - _mesa_error(ctx, GL_INVALID_VALUE, "glBindAttribLocation(index)"); - return; - } - - if (shProg->LinkStatus) { - /* get current index/location for the attribute */ - oldIndex = get_attrib_location(ctx, program, name); - } - else { - oldIndex = -1; - } - - /* this will replace the current value if it's already in the list */ - i = _mesa_add_attribute(shProg->Attributes, name, size, datatype, index); - if (i < 0) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindAttribLocation"); - return; - } - - /* - * Note that this attribute binding won't go into effect until - * glLinkProgram is called again. - */ -} - - -static void -bind_frag_data_location(struct gl_context *ctx, GLuint program, - GLuint colorNumber, const GLchar *name) -{ - _mesa_problem(ctx, "bind_frag_data_location() not implemented yet"); -} - - -static GLuint -create_shader(struct gl_context *ctx, GLenum type) -{ - struct gl_shader *sh; - GLuint name; - - if (!validate_shader_target(ctx, type)) { - _mesa_error(ctx, GL_INVALID_ENUM, "CreateShader(type)"); - return 0; - } - - name = _mesa_HashFindFreeKeyBlock(ctx->Shared->ShaderObjects, 1); - sh = ctx->Driver.NewShader(ctx, name, type); - _mesa_HashInsert(ctx->Shared->ShaderObjects, name, sh); - - return name; -} - - -static GLuint -create_shader_program(struct gl_context *ctx) -{ - GLuint name; - struct gl_shader_program *shProg; - - name = _mesa_HashFindFreeKeyBlock(ctx->Shared->ShaderObjects, 1); - - shProg = ctx->Driver.NewShaderProgram(ctx, name); - - _mesa_HashInsert(ctx->Shared->ShaderObjects, name, shProg); - - assert(shProg->RefCount == 1); - - return name; -} - - -/** - * Named w/ "2" to indicate OpenGL 2.x vs GL_ARB_fragment_programs's - * DeleteProgramARB. - */ -static void -delete_shader_program(struct gl_context *ctx, GLuint name) -{ - /* - * NOTE: deleting shaders/programs works a bit differently than - * texture objects (and buffer objects, etc). Shader/program - * handles/IDs exist in the hash table until the object is really - * deleted (refcount==0). With texture objects, the handle/ID is - * removed from the hash table in glDeleteTextures() while the tex - * object itself might linger until its refcount goes to zero. - */ - struct gl_shader_program *shProg; - - shProg = _mesa_lookup_shader_program_err(ctx, name, "glDeleteProgram"); - if (!shProg) - return; - - shProg->DeletePending = GL_TRUE; - - /* effectively, decr shProg's refcount */ - _mesa_reference_shader_program(ctx, &shProg, NULL); -} - - -static void -delete_shader(struct gl_context *ctx, GLuint shader) -{ - struct gl_shader *sh; - - sh = _mesa_lookup_shader_err(ctx, shader, "glDeleteShader"); - if (!sh) - return; - - sh->DeletePending = GL_TRUE; - - /* effectively, decr sh's refcount */ - _mesa_reference_shader(ctx, &sh, NULL); -} - - -static void -detach_shader(struct gl_context *ctx, GLuint program, GLuint shader) -{ - struct gl_shader_program *shProg; - GLuint n; - GLuint i, j; - - shProg = _mesa_lookup_shader_program_err(ctx, program, "glDetachShader"); - if (!shProg) - return; - - n = shProg->NumShaders; - - for (i = 0; i < n; i++) { - if (shProg->Shaders[i]->Name == shader) { - /* found it */ - struct gl_shader **newList; - - /* release */ - _mesa_reference_shader(ctx, &shProg->Shaders[i], NULL); - - /* alloc new, smaller array */ - newList = (struct gl_shader **) - malloc((n - 1) * sizeof(struct gl_shader *)); - if (!newList) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glDetachShader"); - return; - } - for (j = 0; j < i; j++) { - newList[j] = shProg->Shaders[j]; - } - while (++i < n) - newList[j++] = shProg->Shaders[i]; - free(shProg->Shaders); - - shProg->Shaders = newList; - shProg->NumShaders = n - 1; - -#ifdef DEBUG - /* sanity check */ - { - for (j = 0; j < shProg->NumShaders; j++) { - assert(shProg->Shaders[j]->Type == GL_VERTEX_SHADER || - shProg->Shaders[j]->Type == GL_FRAGMENT_SHADER); - assert(shProg->Shaders[j]->RefCount > 0); - } - } -#endif - - return; - } - } - - /* not found */ - { - GLenum err; - if (is_shader(ctx, shader)) - err = GL_INVALID_OPERATION; - else if (is_program(ctx, shader)) - err = GL_INVALID_OPERATION; - else - err = GL_INVALID_VALUE; - _mesa_error(ctx, err, "glDetachProgram(shader)"); - return; - } -} - - -static void -get_active_attrib(struct gl_context *ctx, GLuint program, GLuint index, - GLsizei maxLength, GLsizei *length, GLint *size, - GLenum *type, GLchar *nameOut) -{ - const struct gl_program_parameter_list *attribs = NULL; - struct gl_shader_program *shProg; - - shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveAttrib"); - if (!shProg) - return; - - if (shProg->VertexProgram) - attribs = shProg->VertexProgram->Base.Attributes; - - if (!attribs || index >= attribs->NumParameters) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveAttrib(index)"); - return; - } - - _mesa_copy_string(nameOut, maxLength, length, - attribs->Parameters[index].Name); - - if (size) - *size = attribs->Parameters[index].Size - / _mesa_sizeof_glsl_type(attribs->Parameters[index].DataType); - - if (type) - *type = attribs->Parameters[index].DataType; -} - - -/** - * Return list of shaders attached to shader program. - */ -static void -get_attached_shaders(struct gl_context *ctx, GLuint program, GLsizei maxCount, - GLsizei *count, GLuint *obj) -{ - struct gl_shader_program *shProg = - _mesa_lookup_shader_program_err(ctx, program, "glGetAttachedShaders"); - if (shProg) { - GLuint i; - for (i = 0; i < (GLuint) maxCount && i < shProg->NumShaders; i++) { - obj[i] = shProg->Shaders[i]->Name; - } - if (count) - *count = i; - } -} - - -static GLint -get_frag_data_location(struct gl_context *ctx, GLuint program, - const GLchar *name) -{ - _mesa_problem(ctx, "get_frag_data_location() not implemented yet"); - return -1; -} - - - -/** - * glGetHandleARB() - return ID/name of currently bound shader program. - */ -static GLuint -get_handle(struct gl_context *ctx, GLenum pname) -{ - if (pname == GL_PROGRAM_OBJECT_ARB) { - if (ctx->Shader.ActiveProgram) - return ctx->Shader.ActiveProgram->Name; - else - return 0; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetHandleARB"); - return 0; - } -} - - -/** - * glGetProgramiv() - get shader program state. - * Note that this is for GLSL shader programs, not ARB vertex/fragment - * programs (see glGetProgramivARB). - */ -static void -get_programiv(struct gl_context *ctx, GLuint program, GLenum pname, GLint *params) -{ - const struct gl_program_parameter_list *attribs; - struct gl_shader_program *shProg - = _mesa_lookup_shader_program(ctx, program); - - if (!shProg) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramiv(program)"); - return; - } - - if (shProg->VertexProgram) - attribs = shProg->VertexProgram->Base.Attributes; - else - attribs = NULL; - - switch (pname) { - case GL_DELETE_STATUS: - *params = shProg->DeletePending; - break; - case GL_LINK_STATUS: - *params = shProg->LinkStatus; - break; - case GL_VALIDATE_STATUS: - *params = shProg->Validated; - break; - case GL_INFO_LOG_LENGTH: - *params = shProg->InfoLog ? strlen(shProg->InfoLog) + 1 : 0; - break; - case GL_ATTACHED_SHADERS: - *params = shProg->NumShaders; - break; - case GL_ACTIVE_ATTRIBUTES: - *params = attribs ? attribs->NumParameters : 0; - break; - case GL_ACTIVE_ATTRIBUTE_MAX_LENGTH: - *params = _mesa_longest_parameter_name(attribs, PROGRAM_INPUT) + 1; - break; - case GL_ACTIVE_UNIFORMS: - *params = shProg->Uniforms ? shProg->Uniforms->NumUniforms : 0; - break; - case GL_ACTIVE_UNIFORM_MAX_LENGTH: - *params = _mesa_longest_uniform_name(shProg->Uniforms); - if (*params > 0) - (*params)++; /* add one for terminating zero */ - break; - case GL_PROGRAM_BINARY_LENGTH_OES: - *params = 0; - break; -#if FEATURE_EXT_transform_feedback - case GL_TRANSFORM_FEEDBACK_VARYINGS: - *params = shProg->TransformFeedback.NumVarying; - break; - case GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH: - *params = longest_feedback_varying_name(shProg) + 1; - break; - case GL_TRANSFORM_FEEDBACK_BUFFER_MODE: - *params = shProg->TransformFeedback.BufferMode; - break; -#endif -#if FEATURE_ARB_geometry_shader4 - case GL_GEOMETRY_VERTICES_OUT_ARB: - *params = shProg->Geom.VerticesOut; - break; - case GL_GEOMETRY_INPUT_TYPE_ARB: - *params = shProg->Geom.InputType; - break; - case GL_GEOMETRY_OUTPUT_TYPE_ARB: - *params = shProg->Geom.OutputType; - break; -#endif - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramiv(pname)"); - return; - } -} - - -/** - * glGetShaderiv() - get GLSL shader state - */ -static void -get_shaderiv(struct gl_context *ctx, GLuint name, GLenum pname, GLint *params) -{ - struct gl_shader *shader = - _mesa_lookup_shader_err(ctx, name, "glGetShaderiv"); - - if (!shader) { - return; - } - - switch (pname) { - case GL_SHADER_TYPE: - *params = shader->Type; - break; - case GL_DELETE_STATUS: - *params = shader->DeletePending; - break; - case GL_COMPILE_STATUS: - *params = shader->CompileStatus; - break; - case GL_INFO_LOG_LENGTH: - *params = shader->InfoLog ? strlen(shader->InfoLog) + 1 : 0; - break; - case GL_SHADER_SOURCE_LENGTH: - *params = shader->Source ? strlen((char *) shader->Source) + 1 : 0; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glGetShaderiv(pname)"); - return; - } -} - - -static void -get_program_info_log(struct gl_context *ctx, GLuint program, GLsizei bufSize, - GLsizei *length, GLchar *infoLog) -{ - struct gl_shader_program *shProg - = _mesa_lookup_shader_program(ctx, program); - if (!shProg) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramInfoLog(program)"); - return; - } - _mesa_copy_string(infoLog, bufSize, length, shProg->InfoLog); -} - - -static void -get_shader_info_log(struct gl_context *ctx, GLuint shader, GLsizei bufSize, - GLsizei *length, GLchar *infoLog) -{ - struct gl_shader *sh = _mesa_lookup_shader(ctx, shader); - if (!sh) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGetShaderInfoLog(shader)"); - return; - } - _mesa_copy_string(infoLog, bufSize, length, sh->InfoLog); -} - - -/** - * Return shader source code. - */ -static void -get_shader_source(struct gl_context *ctx, GLuint shader, GLsizei maxLength, - GLsizei *length, GLchar *sourceOut) -{ - struct gl_shader *sh; - sh = _mesa_lookup_shader_err(ctx, shader, "glGetShaderSource"); - if (!sh) { - return; - } - _mesa_copy_string(sourceOut, maxLength, length, sh->Source); -} - - -/** - * Set/replace shader source code. - */ -static void -shader_source(struct gl_context *ctx, GLuint shader, const GLchar *source) -{ - struct gl_shader *sh; - - sh = _mesa_lookup_shader_err(ctx, shader, "glShaderSource"); - if (!sh) - return; - - /* free old shader source string and install new one */ - if (sh->Source) { - free((void *) sh->Source); - } - sh->Source = source; - sh->CompileStatus = GL_FALSE; -#ifdef DEBUG - sh->SourceChecksum = _mesa_str_checksum(sh->Source); -#endif -} - - -/** - * Compile a shader. - */ -static void -compile_shader(struct gl_context *ctx, GLuint shaderObj) -{ - struct gl_shader *sh; - struct gl_shader_compiler_options *options; - - sh = _mesa_lookup_shader_err(ctx, shaderObj, "glCompileShader"); - if (!sh) - return; - - options = &ctx->ShaderCompilerOptions[_mesa_shader_type_to_index(sh->Type)]; - - /* set default pragma state for shader */ - sh->Pragmas = options->DefaultPragmas; - - /* this call will set the sh->CompileStatus field to indicate if - * compilation was successful. - */ - _mesa_glsl_compile_shader(ctx, sh); -} - - -/** - * Link a program's shaders. - */ -static void -link_program(struct gl_context *ctx, GLuint program) -{ - struct gl_shader_program *shProg; - struct gl_transform_feedback_object *obj = - ctx->TransformFeedback.CurrentObject; - - shProg = _mesa_lookup_shader_program_err(ctx, program, "glLinkProgram"); - if (!shProg) - return; - - if (obj->Active - && (shProg == ctx->Shader.CurrentVertexProgram - || shProg == ctx->Shader.CurrentGeometryProgram - || shProg == ctx->Shader.CurrentFragmentProgram)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glLinkProgram(transform feedback active"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_PROGRAM); - - _mesa_glsl_link_shader(ctx, shProg); - - /* debug code */ - if (0) { - GLuint i; - - printf("Link %u shaders in program %u: %s\n", - shProg->NumShaders, shProg->Name, - shProg->LinkStatus ? "Success" : "Failed"); - - for (i = 0; i < shProg->NumShaders; i++) { - printf(" shader %u, type 0x%x\n", - shProg->Shaders[i]->Name, - shProg->Shaders[i]->Type); - } - } -} - - -/** - * Print basic shader info (for debug). - */ -static void -print_shader_info(const struct gl_shader_program *shProg) -{ - GLuint i; - - printf("Mesa: glUseProgram(%u)\n", shProg->Name); - for (i = 0; i < shProg->NumShaders; i++) { - const char *s; - switch (shProg->Shaders[i]->Type) { - case GL_VERTEX_SHADER: - s = "vertex"; - break; - case GL_FRAGMENT_SHADER: - s = "fragment"; - break; - case GL_GEOMETRY_SHADER: - s = "geometry"; - break; - default: - s = ""; - } - printf(" %s shader %u, checksum %u\n", s, - shProg->Shaders[i]->Name, - shProg->Shaders[i]->SourceChecksum); - } - if (shProg->VertexProgram) - printf(" vert prog %u\n", shProg->VertexProgram->Base.Id); - if (shProg->FragmentProgram) - printf(" frag prog %u\n", shProg->FragmentProgram->Base.Id); -} - - -/** - * Use the named shader program for subsequent glUniform calls - */ -void -_mesa_active_program(struct gl_context *ctx, struct gl_shader_program *shProg, - const char *caller) -{ - if ((shProg != NULL) && !shProg->LinkStatus) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "%s(program %u not linked)", caller, shProg->Name); - return; - } - - if (ctx->Shader.ActiveProgram != shProg) { - _mesa_reference_shader_program(ctx, &ctx->Shader.ActiveProgram, shProg); - } -} - -/** - */ -static bool -use_shader_program(struct gl_context *ctx, GLenum type, - struct gl_shader_program *shProg) -{ - struct gl_shader_program **target; - - switch (type) { -#if FEATURE_ARB_vertex_shader - case GL_VERTEX_SHADER: - target = &ctx->Shader.CurrentVertexProgram; - if ((shProg == NULL) - || (shProg->_LinkedShaders[MESA_SHADER_VERTEX] == NULL)) { - shProg = NULL; - } - break; -#endif -#if FEATURE_ARB_geometry_shader4 - case GL_GEOMETRY_SHADER_ARB: - target = &ctx->Shader.CurrentGeometryProgram; - if ((shProg == NULL) - || (shProg->_LinkedShaders[MESA_SHADER_GEOMETRY] == NULL)) { - shProg = NULL; - } - break; -#endif -#if FEATURE_ARB_fragment_shader - case GL_FRAGMENT_SHADER: - target = &ctx->Shader.CurrentFragmentProgram; - if ((shProg == NULL) - || (shProg->_LinkedShaders[MESA_SHADER_FRAGMENT] == NULL)) { - shProg = NULL; - } - break; -#endif - default: - return false; - } - - if (*target != shProg) { - FLUSH_VERTICES(ctx, _NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS); - _mesa_reference_shader_program(ctx, target, shProg); - return true; - } - - return false; -} - -/** - * Use the named shader program for subsequent rendering. - */ -void -_mesa_use_program(struct gl_context *ctx, struct gl_shader_program *shProg) -{ - use_shader_program(ctx, GL_VERTEX_SHADER, shProg); - use_shader_program(ctx, GL_GEOMETRY_SHADER_ARB, shProg); - use_shader_program(ctx, GL_FRAGMENT_SHADER, shProg); - _mesa_active_program(ctx, shProg, "glUseProgram"); - - if (ctx->Driver.UseProgram) - ctx->Driver.UseProgram(ctx, shProg); -} - - -/** - * Validate a program's samplers. - * Specifically, check that there aren't two samplers of different types - * pointing to the same texture unit. - * \return GL_TRUE if valid, GL_FALSE if invalid - */ -static GLboolean -validate_samplers(const struct gl_program *prog, char *errMsg) -{ - static const char *targetName[] = { - "TEXTURE_2D_ARRAY", - "TEXTURE_1D_ARRAY", - "TEXTURE_CUBE", - "TEXTURE_3D", - "TEXTURE_RECT", - "TEXTURE_2D", - "TEXTURE_1D", - }; - GLint targetUsed[MAX_TEXTURE_IMAGE_UNITS]; - GLbitfield samplersUsed = prog->SamplersUsed; - GLuint i; - - assert(Elements(targetName) == NUM_TEXTURE_TARGETS); - - if (samplersUsed == 0x0) - return GL_TRUE; - - for (i = 0; i < Elements(targetUsed); i++) - targetUsed[i] = -1; - - /* walk over bits which are set in 'samplers' */ - while (samplersUsed) { - GLuint unit; - gl_texture_index target; - GLint sampler = _mesa_ffs(samplersUsed) - 1; - assert(sampler >= 0); - assert(sampler < MAX_TEXTURE_IMAGE_UNITS); - unit = prog->SamplerUnits[sampler]; - target = prog->SamplerTargets[sampler]; - if (targetUsed[unit] != -1 && targetUsed[unit] != (int) target) { - _mesa_snprintf(errMsg, 100, - "Texture unit %d is accessed both as %s and %s", - unit, targetName[targetUsed[unit]], targetName[target]); - return GL_FALSE; - } - targetUsed[unit] = target; - samplersUsed ^= (1 << sampler); - } - - return GL_TRUE; -} - - -/** - * Do validation of the given shader program. - * \param errMsg returns error message if validation fails. - * \return GL_TRUE if valid, GL_FALSE if invalid (and set errMsg) - */ -static GLboolean -validate_shader_program(const struct gl_shader_program *shProg, - char *errMsg) -{ - const struct gl_vertex_program *vp = shProg->VertexProgram; - const struct gl_fragment_program *fp = shProg->FragmentProgram; - - if (!shProg->LinkStatus) { - return GL_FALSE; - } - - /* From the GL spec, a program is invalid if any of these are true: - - any two active samplers in the current program object are of - different types, but refer to the same texture image unit, - - any active sampler in the current program object refers to a texture - image unit where fixed-function fragment processing accesses a - texture target that does not match the sampler type, or - - the sum of the number of active samplers in the program and the - number of texture image units enabled for fixed-function fragment - processing exceeds the combined limit on the total number of texture - image units allowed. - */ - - - /* - * Check: any two active samplers in the current program object are of - * different types, but refer to the same texture image unit, - */ - if (vp && !validate_samplers(&vp->Base, errMsg)) { - return GL_FALSE; - } - if (fp && !validate_samplers(&fp->Base, errMsg)) { - return GL_FALSE; - } - - return GL_TRUE; -} - - -/** - * Called via glValidateProgram() - */ -static void -validate_program(struct gl_context *ctx, GLuint program) -{ - struct gl_shader_program *shProg; - char errMsg[100]; - - shProg = _mesa_lookup_shader_program_err(ctx, program, "glValidateProgram"); - if (!shProg) { - return; - } - - shProg->Validated = validate_shader_program(shProg, errMsg); - if (!shProg->Validated) { - /* update info log */ - if (shProg->InfoLog) { - ralloc_free(shProg->InfoLog); - } - shProg->InfoLog = ralloc_strdup(shProg, errMsg); - } -} - - - -void GLAPIENTRY -_mesa_AttachObjectARB(GLhandleARB program, GLhandleARB shader) -{ - GET_CURRENT_CONTEXT(ctx); - attach_shader(ctx, program, shader); -} - - -void GLAPIENTRY -_mesa_AttachShader(GLuint program, GLuint shader) -{ - GET_CURRENT_CONTEXT(ctx); - attach_shader(ctx, program, shader); -} - - -void GLAPIENTRY -_mesa_BindAttribLocationARB(GLhandleARB program, GLuint index, - const GLcharARB *name) -{ - GET_CURRENT_CONTEXT(ctx); - bind_attrib_location(ctx, program, index, name); -} - - -/* GL_EXT_gpu_shader4, GL3 */ -void GLAPIENTRY -_mesa_BindFragDataLocation(GLuint program, GLuint colorNumber, - const GLchar *name) -{ - GET_CURRENT_CONTEXT(ctx); - bind_frag_data_location(ctx, program, colorNumber, name); -} - - -void GLAPIENTRY -_mesa_CompileShaderARB(GLhandleARB shaderObj) -{ - GET_CURRENT_CONTEXT(ctx); - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glCompileShader %u\n", shaderObj); - compile_shader(ctx, shaderObj); -} - - -GLuint GLAPIENTRY -_mesa_CreateShader(GLenum type) -{ - GET_CURRENT_CONTEXT(ctx); - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glCreateShader %s\n", _mesa_lookup_enum_by_nr(type)); - return create_shader(ctx, type); -} - - -GLhandleARB GLAPIENTRY -_mesa_CreateShaderObjectARB(GLenum type) -{ - GET_CURRENT_CONTEXT(ctx); - return create_shader(ctx, type); -} - - -GLuint GLAPIENTRY -_mesa_CreateProgram(void) -{ - GET_CURRENT_CONTEXT(ctx); - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glCreateProgram\n"); - return create_shader_program(ctx); -} - - -GLhandleARB GLAPIENTRY -_mesa_CreateProgramObjectARB(void) -{ - GET_CURRENT_CONTEXT(ctx); - return create_shader_program(ctx); -} - - -void GLAPIENTRY -_mesa_DeleteObjectARB(GLhandleARB obj) -{ - if (MESA_VERBOSE & VERBOSE_API) { - GET_CURRENT_CONTEXT(ctx); - _mesa_debug(ctx, "glDeleteObjectARB(%u)\n", obj); - } - - if (obj) { - GET_CURRENT_CONTEXT(ctx); - if (is_program(ctx, obj)) { - delete_shader_program(ctx, obj); - } - else if (is_shader(ctx, obj)) { - delete_shader(ctx, obj); - } - else { - /* error? */ - } - } -} - - -void GLAPIENTRY -_mesa_DeleteProgram(GLuint name) -{ - if (name) { - GET_CURRENT_CONTEXT(ctx); - delete_shader_program(ctx, name); - } -} - - -void GLAPIENTRY -_mesa_DeleteShader(GLuint name) -{ - if (name) { - GET_CURRENT_CONTEXT(ctx); - delete_shader(ctx, name); - } -} - - -void GLAPIENTRY -_mesa_DetachObjectARB(GLhandleARB program, GLhandleARB shader) -{ - GET_CURRENT_CONTEXT(ctx); - detach_shader(ctx, program, shader); -} - - -void GLAPIENTRY -_mesa_DetachShader(GLuint program, GLuint shader) -{ - GET_CURRENT_CONTEXT(ctx); - detach_shader(ctx, program, shader); -} - - -void GLAPIENTRY -_mesa_GetActiveAttribARB(GLhandleARB program, GLuint index, - GLsizei maxLength, GLsizei * length, GLint * size, - GLenum * type, GLcharARB * name) -{ - GET_CURRENT_CONTEXT(ctx); - get_active_attrib(ctx, program, index, maxLength, length, size, type, name); -} - - -void GLAPIENTRY -_mesa_GetAttachedObjectsARB(GLhandleARB container, GLsizei maxCount, - GLsizei * count, GLhandleARB * obj) -{ - GET_CURRENT_CONTEXT(ctx); - get_attached_shaders(ctx, container, maxCount, count, obj); -} - - -void GLAPIENTRY -_mesa_GetAttachedShaders(GLuint program, GLsizei maxCount, - GLsizei *count, GLuint *obj) -{ - GET_CURRENT_CONTEXT(ctx); - get_attached_shaders(ctx, program, maxCount, count, obj); -} - - -GLint GLAPIENTRY -_mesa_GetAttribLocationARB(GLhandleARB program, const GLcharARB * name) -{ - GET_CURRENT_CONTEXT(ctx); - return get_attrib_location(ctx, program, name); -} - - -/* GL_EXT_gpu_shader4, GL3 */ -GLint GLAPIENTRY -_mesa_GetFragDataLocation(GLuint program, const GLchar *name) -{ - GET_CURRENT_CONTEXT(ctx); - return get_frag_data_location(ctx, program, name); -} - - - -void GLAPIENTRY -_mesa_GetInfoLogARB(GLhandleARB object, GLsizei maxLength, GLsizei * length, - GLcharARB * infoLog) -{ - GET_CURRENT_CONTEXT(ctx); - if (is_program(ctx, object)) { - get_program_info_log(ctx, object, maxLength, length, infoLog); - } - else if (is_shader(ctx, object)) { - get_shader_info_log(ctx, object, maxLength, length, infoLog); - } - else { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetInfoLogARB"); - } -} - - -void GLAPIENTRY -_mesa_GetObjectParameterivARB(GLhandleARB object, GLenum pname, GLint *params) -{ - GET_CURRENT_CONTEXT(ctx); - /* Implement in terms of GetProgramiv, GetShaderiv */ - if (is_program(ctx, object)) { - if (pname == GL_OBJECT_TYPE_ARB) { - *params = GL_PROGRAM_OBJECT_ARB; - } - else { - get_programiv(ctx, object, pname, params); - } - } - else if (is_shader(ctx, object)) { - if (pname == GL_OBJECT_TYPE_ARB) { - *params = GL_SHADER_OBJECT_ARB; - } - else { - get_shaderiv(ctx, object, pname, params); - } - } - else { - _mesa_error(ctx, GL_INVALID_VALUE, "glGetObjectParameterivARB"); - } -} - - -void GLAPIENTRY -_mesa_GetObjectParameterfvARB(GLhandleARB object, GLenum pname, - GLfloat *params) -{ - GLint iparams[1]; /* XXX is one element enough? */ - _mesa_GetObjectParameterivARB(object, pname, iparams); - params[0] = (GLfloat) iparams[0]; -} - - -void GLAPIENTRY -_mesa_GetProgramiv(GLuint program, GLenum pname, GLint *params) -{ - GET_CURRENT_CONTEXT(ctx); - get_programiv(ctx, program, pname, params); -} - - -void GLAPIENTRY -_mesa_GetShaderiv(GLuint shader, GLenum pname, GLint *params) -{ - GET_CURRENT_CONTEXT(ctx); - get_shaderiv(ctx, shader, pname, params); -} - - -void GLAPIENTRY -_mesa_GetProgramInfoLog(GLuint program, GLsizei bufSize, - GLsizei *length, GLchar *infoLog) -{ - GET_CURRENT_CONTEXT(ctx); - get_program_info_log(ctx, program, bufSize, length, infoLog); -} - - -void GLAPIENTRY -_mesa_GetShaderInfoLog(GLuint shader, GLsizei bufSize, - GLsizei *length, GLchar *infoLog) -{ - GET_CURRENT_CONTEXT(ctx); - get_shader_info_log(ctx, shader, bufSize, length, infoLog); -} - - -void GLAPIENTRY -_mesa_GetShaderSourceARB(GLhandleARB shader, GLsizei maxLength, - GLsizei *length, GLcharARB *sourceOut) -{ - GET_CURRENT_CONTEXT(ctx); - get_shader_source(ctx, shader, maxLength, length, sourceOut); -} - - -GLhandleARB GLAPIENTRY -_mesa_GetHandleARB(GLenum pname) -{ - GET_CURRENT_CONTEXT(ctx); - return get_handle(ctx, pname); -} - - -GLboolean GLAPIENTRY -_mesa_IsProgram(GLuint name) -{ - GET_CURRENT_CONTEXT(ctx); - return is_program(ctx, name); -} - - -GLboolean GLAPIENTRY -_mesa_IsShader(GLuint name) -{ - GET_CURRENT_CONTEXT(ctx); - return is_shader(ctx, name); -} - - -void GLAPIENTRY -_mesa_LinkProgramARB(GLhandleARB programObj) -{ - GET_CURRENT_CONTEXT(ctx); - link_program(ctx, programObj); -} - - - -/** - * Read shader source code from a file. - * Useful for debugging to override an app's shader. - */ -static GLcharARB * -read_shader(const char *fname) -{ - const int max = 50*1000; - FILE *f = fopen(fname, "r"); - GLcharARB *buffer, *shader; - int len; - - if (!f) { - return NULL; - } - - buffer = (char *) malloc(max); - len = fread(buffer, 1, max, f); - buffer[len] = 0; - - fclose(f); - - shader = _mesa_strdup(buffer); - free(buffer); - - return shader; -} - - -/** - * Called via glShaderSource() and glShaderSourceARB() API functions. - * Basically, concatenate the source code strings into one long string - * and pass it to _mesa_shader_source(). - */ -void GLAPIENTRY -_mesa_ShaderSourceARB(GLhandleARB shaderObj, GLsizei count, - const GLcharARB ** string, const GLint * length) -{ - GET_CURRENT_CONTEXT(ctx); - GLint *offsets; - GLsizei i, totalLength; - GLcharARB *source; - GLuint checksum; - - if (!shaderObj || string == NULL) { - _mesa_error(ctx, GL_INVALID_VALUE, "glShaderSourceARB"); - return; - } - - /* - * This array holds offsets of where the appropriate string ends, thus the - * last element will be set to the total length of the source code. - */ - offsets = (GLint *) malloc(count * sizeof(GLint)); - if (offsets == NULL) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glShaderSourceARB"); - return; - } - - for (i = 0; i < count; i++) { - if (string[i] == NULL) { - free((GLvoid *) offsets); - _mesa_error(ctx, GL_INVALID_OPERATION, "glShaderSourceARB(null string)"); - return; - } - if (length == NULL || length[i] < 0) - offsets[i] = strlen(string[i]); - else - offsets[i] = length[i]; - /* accumulate string lengths */ - if (i > 0) - offsets[i] += offsets[i - 1]; - } - - /* Total length of source string is sum off all strings plus two. - * One extra byte for terminating zero, another extra byte to silence - * valgrind warnings in the parser/grammer code. - */ - totalLength = offsets[count - 1] + 2; - source = (GLcharARB *) malloc(totalLength * sizeof(GLcharARB)); - if (source == NULL) { - free((GLvoid *) offsets); - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glShaderSourceARB"); - return; - } - - for (i = 0; i < count; i++) { - GLint start = (i > 0) ? offsets[i - 1] : 0; - memcpy(source + start, string[i], - (offsets[i] - start) * sizeof(GLcharARB)); - } - source[totalLength - 1] = '\0'; - source[totalLength - 2] = '\0'; - - if (SHADER_SUBST) { - /* Compute the shader's source code checksum then try to open a file - * named newshader_. If it exists, use it in place of the - * original shader source code. For debugging. - */ - char filename[100]; - GLcharARB *newSource; - - checksum = _mesa_str_checksum(source); - - _mesa_snprintf(filename, sizeof(filename), "newshader_%d", checksum); - - newSource = read_shader(filename); - if (newSource) { - fprintf(stderr, "Mesa: Replacing shader %u chksum=%d with %s\n", - shaderObj, checksum, filename); - free(source); - source = newSource; - } - } - - shader_source(ctx, shaderObj, source); - - if (SHADER_SUBST) { - struct gl_shader *sh = _mesa_lookup_shader(ctx, shaderObj); - if (sh) - sh->SourceChecksum = checksum; /* save original checksum */ - } - - free(offsets); -} - - -void GLAPIENTRY -_mesa_UseProgramObjectARB(GLhandleARB program) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_shader_program *shProg; - struct gl_transform_feedback_object *obj = - ctx->TransformFeedback.CurrentObject; - - if (obj->Active) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glUseProgram(transform feedback active)"); - return; - } - - if (program) { - shProg = _mesa_lookup_shader_program_err(ctx, program, "glUseProgram"); - if (!shProg) { - return; - } - if (!shProg->LinkStatus) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glUseProgram(program %u not linked)", program); - return; - } - - /* debug code */ - if (ctx->Shader.Flags & GLSL_USE_PROG) { - print_shader_info(shProg); - } - } - else { - shProg = NULL; - } - - _mesa_use_program(ctx, shProg); -} - - -void GLAPIENTRY -_mesa_ValidateProgramARB(GLhandleARB program) -{ - GET_CURRENT_CONTEXT(ctx); - validate_program(ctx, program); -} - -#ifdef FEATURE_ES2 - -void GLAPIENTRY -_mesa_GetShaderPrecisionFormat(GLenum shadertype, GLenum precisiontype, - GLint* range, GLint* precision) -{ - const struct gl_program_constants *limits; - const struct gl_precision *p; - GET_CURRENT_CONTEXT(ctx); - - switch (shadertype) { - case GL_VERTEX_SHADER: - limits = &ctx->Const.VertexProgram; - break; - case GL_FRAGMENT_SHADER: - limits = &ctx->Const.FragmentProgram; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetShaderPrecisionFormat(shadertype)"); - return; - } - - switch (precisiontype) { - case GL_LOW_FLOAT: - p = &limits->LowFloat; - break; - case GL_MEDIUM_FLOAT: - p = &limits->MediumFloat; - break; - case GL_HIGH_FLOAT: - p = &limits->HighFloat; - break; - case GL_LOW_INT: - p = &limits->LowInt; - break; - case GL_MEDIUM_INT: - p = &limits->MediumInt; - break; - case GL_HIGH_INT: - p = &limits->HighInt; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetShaderPrecisionFormat(precisiontype)"); - return; - } - - range[0] = p->RangeMin; - range[1] = p->RangeMax; - precision[0] = p->Precision; -} - - -void GLAPIENTRY -_mesa_ReleaseShaderCompiler(void) -{ - _mesa_destroy_shader_compiler_caches(); -} - - -void GLAPIENTRY -_mesa_ShaderBinary(GLint n, const GLuint* shaders, GLenum binaryformat, - const void* binary, GLint length) -{ - GET_CURRENT_CONTEXT(ctx); - (void) n; - (void) shaders; - (void) binaryformat; - (void) binary; - (void) length; - _mesa_error(ctx, GL_INVALID_OPERATION, __FUNCTION__); -} - -#endif /* FEATURE_ES2 */ - - -#if FEATURE_ARB_geometry_shader4 - -void GLAPIENTRY -_mesa_ProgramParameteriARB(GLuint program, GLenum pname, - GLint value) -{ - struct gl_shader_program *shProg; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - shProg = _mesa_lookup_shader_program_err(ctx, program, - "glProgramParameteri"); - if (!shProg) - return; - - switch (pname) { - case GL_GEOMETRY_VERTICES_OUT_ARB: - if (value < 1 || - (unsigned) value > ctx->Const.GeometryProgram.MaxGeometryOutputVertices) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glProgramParameteri(GL_GEOMETRY_VERTICES_OUT_ARB=%d", - value); - return; - } - shProg->Geom.VerticesOut = value; - break; - case GL_GEOMETRY_INPUT_TYPE_ARB: - switch (value) { - case GL_POINTS: - case GL_LINES: - case GL_LINES_ADJACENCY_ARB: - case GL_TRIANGLES: - case GL_TRIANGLES_ADJACENCY_ARB: - shProg->Geom.InputType = value; - break; - default: - _mesa_error(ctx, GL_INVALID_VALUE, - "glProgramParameteri(geometry input type = %s", - _mesa_lookup_enum_by_nr(value)); - return; - } - break; - case GL_GEOMETRY_OUTPUT_TYPE_ARB: - switch (value) { - case GL_POINTS: - case GL_LINE_STRIP: - case GL_TRIANGLE_STRIP: - shProg->Geom.OutputType = value; - break; - default: - _mesa_error(ctx, GL_INVALID_VALUE, - "glProgramParameteri(geometry output type = %s", - _mesa_lookup_enum_by_nr(value)); - return; - } - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glProgramParameteriARB(pname=%s)", - _mesa_lookup_enum_by_nr(pname)); - break; - } -} - -#endif - -void -_mesa_use_shader_program(struct gl_context *ctx, GLenum type, - struct gl_shader_program *shProg) -{ - use_shader_program(ctx, type, shProg); - - if (ctx->Driver.UseProgram) - ctx->Driver.UseProgram(ctx, shProg); -} - -void GLAPIENTRY -_mesa_UseShaderProgramEXT(GLenum type, GLuint program) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_shader_program *shProg = NULL; - - if (!validate_shader_target(ctx, type)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glUseShaderProgramEXT(type)"); - return; - } - - if (ctx->TransformFeedback.CurrentObject->Active) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glUseShaderProgramEXT(transform feedback is active)"); - return; - } - - if (program) { - shProg = _mesa_lookup_shader_program_err(ctx, program, - "glUseShaderProgramEXT"); - if (shProg == NULL) - return; - - if (!shProg->LinkStatus) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glUseShaderProgramEXT(program not linked)"); - return; - } - } - - _mesa_use_shader_program(ctx, type, shProg); -} - -void GLAPIENTRY -_mesa_ActiveProgramEXT(GLuint program) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_shader_program *shProg = (program != 0) - ? _mesa_lookup_shader_program_err(ctx, program, "glActiveProgramEXT") - : NULL; - - _mesa_active_program(ctx, shProg, "glActiveProgramEXT"); - return; -} - -GLuint GLAPIENTRY -_mesa_CreateShaderProgramEXT(GLenum type, const GLchar *string) -{ - GET_CURRENT_CONTEXT(ctx); - const GLuint shader = create_shader(ctx, type); - GLuint program = 0; - - if (shader) { - shader_source(ctx, shader, _mesa_strdup(string)); - compile_shader(ctx, shader); - - program = create_shader_program(ctx); - if (program) { - struct gl_shader_program *shProg; - struct gl_shader *sh; - GLint compiled = GL_FALSE; - - shProg = _mesa_lookup_shader_program(ctx, program); - sh = _mesa_lookup_shader(ctx, shader); - - get_shaderiv(ctx, shader, GL_COMPILE_STATUS, &compiled); - if (compiled) { - attach_shader(ctx, program, shader); - link_program(ctx, program); - detach_shader(ctx, program, shader); - -#if 0 - /* Possibly... */ - if (active-user-defined-varyings-in-linked-program) { - append-error-to-info-log; - shProg->LinkStatus = GL_FALSE; - } -#endif - } - - ralloc_strcat(&shProg->InfoLog, sh->InfoLog); - } - - delete_shader(ctx, shader); - } - - return program; -} - -/** - * Plug in shader-related functions into API dispatch table. - */ -void -_mesa_init_shader_dispatch(struct _glapi_table *exec) -{ -#if FEATURE_GL - /* GL_ARB_vertex/fragment_shader */ - SET_DeleteObjectARB(exec, _mesa_DeleteObjectARB); - SET_GetHandleARB(exec, _mesa_GetHandleARB); - SET_DetachObjectARB(exec, _mesa_DetachObjectARB); - SET_CreateShaderObjectARB(exec, _mesa_CreateShaderObjectARB); - SET_ShaderSourceARB(exec, _mesa_ShaderSourceARB); - SET_CompileShaderARB(exec, _mesa_CompileShaderARB); - SET_CreateProgramObjectARB(exec, _mesa_CreateProgramObjectARB); - SET_AttachObjectARB(exec, _mesa_AttachObjectARB); - SET_LinkProgramARB(exec, _mesa_LinkProgramARB); - SET_UseProgramObjectARB(exec, _mesa_UseProgramObjectARB); - SET_ValidateProgramARB(exec, _mesa_ValidateProgramARB); - SET_GetObjectParameterfvARB(exec, _mesa_GetObjectParameterfvARB); - SET_GetObjectParameterivARB(exec, _mesa_GetObjectParameterivARB); - SET_GetInfoLogARB(exec, _mesa_GetInfoLogARB); - SET_GetAttachedObjectsARB(exec, _mesa_GetAttachedObjectsARB); - SET_GetShaderSourceARB(exec, _mesa_GetShaderSourceARB); - - /* OpenGL 2.0 */ - SET_AttachShader(exec, _mesa_AttachShader); - SET_CreateProgram(exec, _mesa_CreateProgram); - SET_CreateShader(exec, _mesa_CreateShader); - SET_DeleteProgram(exec, _mesa_DeleteProgram); - SET_DeleteShader(exec, _mesa_DeleteShader); - SET_DetachShader(exec, _mesa_DetachShader); - SET_GetAttachedShaders(exec, _mesa_GetAttachedShaders); - SET_GetProgramiv(exec, _mesa_GetProgramiv); - SET_GetProgramInfoLog(exec, _mesa_GetProgramInfoLog); - SET_GetShaderiv(exec, _mesa_GetShaderiv); - SET_GetShaderInfoLog(exec, _mesa_GetShaderInfoLog); - SET_IsProgram(exec, _mesa_IsProgram); - SET_IsShader(exec, _mesa_IsShader); - -#if FEATURE_ARB_vertex_shader - SET_BindAttribLocationARB(exec, _mesa_BindAttribLocationARB); - SET_GetActiveAttribARB(exec, _mesa_GetActiveAttribARB); - SET_GetAttribLocationARB(exec, _mesa_GetAttribLocationARB); -#endif - -#if FEATURE_ARB_geometry_shader4 - SET_ProgramParameteriARB(exec, _mesa_ProgramParameteriARB); -#endif - - SET_UseShaderProgramEXT(exec, _mesa_UseShaderProgramEXT); - SET_ActiveProgramEXT(exec, _mesa_ActiveProgramEXT); - SET_CreateShaderProgramEXT(exec, _mesa_CreateShaderProgramEXT); - - /* GL_EXT_gpu_shader4 / GL 3.0 */ - SET_BindFragDataLocationEXT(exec, _mesa_BindFragDataLocation); - SET_GetFragDataLocationEXT(exec, _mesa_GetFragDataLocation); - - /* GL_ARB_ES2_compatibility */ - SET_ReleaseShaderCompiler(exec, _mesa_ReleaseShaderCompiler); - SET_GetShaderPrecisionFormat(exec, _mesa_GetShaderPrecisionFormat); - -#endif /* FEATURE_GL */ -} - +/* + * Mesa 3-D graphics library + * + * Copyright (C) 2004-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009-2010 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file shaderapi.c + * \author Brian Paul + * + * Implementation of GLSL-related API functions. + * The glUniform* functions are in uniforms.c + * + * + * XXX things to do: + * 1. Check that the right error code is generated for all _mesa_error() calls. + * 2. Insert FLUSH_VERTICES calls in various places + */ + + +#include "main/glheader.h" +#include "main/context.h" +#include "main/dispatch.h" +#include "main/enums.h" +#include "main/hash.h" +#include "main/mfeatures.h" +#include "main/mtypes.h" +#include "main/shaderapi.h" +#include "main/shaderobj.h" +#include "program/program.h" +#include "program/prog_parameter.h" +#include "program/prog_uniform.h" +#include "ralloc.h" +#include +#include "../glsl/glsl_parser_extras.h" + +/** Define this to enable shader substitution (see below) */ +#define SHADER_SUBST 0 + + +/** + * Return mask of GLSL_x flags by examining the MESA_GLSL env var. + */ +static GLbitfield +get_shader_flags(void) +{ + GLbitfield flags = 0x0; + const char *env = _mesa_getenv("MESA_GLSL"); + + if (env) { + if (strstr(env, "dump")) + flags |= GLSL_DUMP; + if (strstr(env, "log")) + flags |= GLSL_LOG; + if (strstr(env, "nopvert")) + flags |= GLSL_NOP_VERT; + if (strstr(env, "nopfrag")) + flags |= GLSL_NOP_FRAG; + if (strstr(env, "nopt")) + flags |= GLSL_NO_OPT; + else if (strstr(env, "opt")) + flags |= GLSL_OPT; + if (strstr(env, "uniform")) + flags |= GLSL_UNIFORMS; + if (strstr(env, "useprog")) + flags |= GLSL_USE_PROG; + } + + return flags; +} + + +/** + * Initialize context's shader state. + */ +void +_mesa_init_shader_state(struct gl_context *ctx) +{ + /* Device drivers may override these to control what kind of instructions + * are generated by the GLSL compiler. + */ + struct gl_shader_compiler_options options; + gl_shader_type sh; + + memset(&options, 0, sizeof(options)); + options.MaxUnrollIterations = 32; + + /* Default pragma settings */ + options.DefaultPragmas.Optimize = GL_TRUE; + + for (sh = 0; sh < MESA_SHADER_TYPES; ++sh) + memcpy(&ctx->ShaderCompilerOptions[sh], &options, sizeof(options)); + + ctx->Shader.Flags = get_shader_flags(); +} + + +/** + * Free the per-context shader-related state. + */ +void +_mesa_free_shader_state(struct gl_context *ctx) +{ + _mesa_reference_shader_program(ctx, &ctx->Shader.CurrentVertexProgram, NULL); + _mesa_reference_shader_program(ctx, &ctx->Shader.CurrentGeometryProgram, + NULL); + _mesa_reference_shader_program(ctx, &ctx->Shader.CurrentFragmentProgram, + NULL); + _mesa_reference_shader_program(ctx, &ctx->Shader.ActiveProgram, NULL); +} + + +/** + * Return the size of the given GLSL datatype, in floats (components). + */ +GLint +_mesa_sizeof_glsl_type(GLenum type) +{ + switch (type) { + case GL_FLOAT: + case GL_INT: + case GL_BOOL: + case GL_SAMPLER_1D: + case GL_SAMPLER_2D: + case GL_SAMPLER_3D: + case GL_SAMPLER_CUBE: + case GL_SAMPLER_1D_SHADOW: + case GL_SAMPLER_2D_SHADOW: + case GL_SAMPLER_2D_RECT_ARB: + case GL_SAMPLER_2D_RECT_SHADOW_ARB: + case GL_SAMPLER_1D_ARRAY_EXT: + case GL_SAMPLER_2D_ARRAY_EXT: + case GL_SAMPLER_1D_ARRAY_SHADOW_EXT: + case GL_SAMPLER_2D_ARRAY_SHADOW_EXT: + case GL_SAMPLER_CUBE_SHADOW_EXT: + return 1; + case GL_FLOAT_VEC2: + case GL_INT_VEC2: + case GL_UNSIGNED_INT_VEC2: + case GL_BOOL_VEC2: + return 2; + case GL_FLOAT_VEC3: + case GL_INT_VEC3: + case GL_UNSIGNED_INT_VEC3: + case GL_BOOL_VEC3: + return 3; + case GL_FLOAT_VEC4: + case GL_INT_VEC4: + case GL_UNSIGNED_INT_VEC4: + case GL_BOOL_VEC4: + return 4; + case GL_FLOAT_MAT2: + case GL_FLOAT_MAT2x3: + case GL_FLOAT_MAT2x4: + return 8; /* two float[4] vectors */ + case GL_FLOAT_MAT3: + case GL_FLOAT_MAT3x2: + case GL_FLOAT_MAT3x4: + return 12; /* three float[4] vectors */ + case GL_FLOAT_MAT4: + case GL_FLOAT_MAT4x2: + case GL_FLOAT_MAT4x3: + return 16; /* four float[4] vectors */ + default: + _mesa_problem(NULL, "Invalid type in _mesa_sizeof_glsl_type()"); + return 1; + } +} + + +/** + * Copy string from to , up to maxLength characters, returning + * length of in . + * \param src the strings source + * \param maxLength max chars to copy + * \param length returns number of chars copied + * \param dst the string destination + */ +void +_mesa_copy_string(GLchar *dst, GLsizei maxLength, + GLsizei *length, const GLchar *src) +{ + GLsizei len; + for (len = 0; len < maxLength - 1 && src && src[len]; len++) + dst[len] = src[len]; + if (maxLength > 0) + dst[len] = 0; + if (length) + *length = len; +} + + + +/** + * Confirm that the a shader type is valid and supported by the implementation + * + * \param ctx Current GL context + * \param type Shader target + * + */ +static bool +validate_shader_target(const struct gl_context *ctx, GLenum type) +{ + switch (type) { +#if FEATURE_ARB_fragment_shader + case GL_FRAGMENT_SHADER: + return ctx->Extensions.ARB_fragment_shader; +#endif +#if FEATURE_ARB_vertex_shader + case GL_VERTEX_SHADER: + return ctx->Extensions.ARB_vertex_shader; +#endif +#if FEATURE_ARB_geometry_shader4 + case GL_GEOMETRY_SHADER_ARB: + return ctx->Extensions.ARB_geometry_shader4; +#endif + default: + return false; + } +} + + +/** + * Find the length of the longest transform feedback varying name + * which was specified with glTransformFeedbackVaryings(). + */ +static GLint +longest_feedback_varying_name(const struct gl_shader_program *shProg) +{ + GLuint i; + GLint max = 0; + for (i = 0; i < shProg->TransformFeedback.NumVarying; i++) { + GLint len = strlen(shProg->TransformFeedback.VaryingNames[i]); + if (len > max) + max = len; + } + return max; +} + + + +static GLboolean +is_program(struct gl_context *ctx, GLuint name) +{ + struct gl_shader_program *shProg = _mesa_lookup_shader_program(ctx, name); + return shProg ? GL_TRUE : GL_FALSE; +} + + +static GLboolean +is_shader(struct gl_context *ctx, GLuint name) +{ + struct gl_shader *shader = _mesa_lookup_shader(ctx, name); + return shader ? GL_TRUE : GL_FALSE; +} + + +/** + * Attach shader to a shader program. + */ +static void +attach_shader(struct gl_context *ctx, GLuint program, GLuint shader) +{ + struct gl_shader_program *shProg; + struct gl_shader *sh; + GLuint i, n; + + shProg = _mesa_lookup_shader_program_err(ctx, program, "glAttachShader"); + if (!shProg) + return; + + sh = _mesa_lookup_shader_err(ctx, shader, "glAttachShader"); + if (!sh) { + return; + } + + n = shProg->NumShaders; + for (i = 0; i < n; i++) { + if (shProg->Shaders[i] == sh) { + /* The shader is already attched to this program. The + * GL_ARB_shader_objects spec says: + * + * "The error INVALID_OPERATION is generated by AttachObjectARB + * if is already attached to ." + */ + _mesa_error(ctx, GL_INVALID_OPERATION, "glAttachShader"); + return; + } + } + + /* grow list */ + shProg->Shaders = (struct gl_shader **) + _mesa_realloc(shProg->Shaders, + n * sizeof(struct gl_shader *), + (n + 1) * sizeof(struct gl_shader *)); + if (!shProg->Shaders) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glAttachShader"); + return; + } + + /* append */ + shProg->Shaders[n] = NULL; /* since realloc() didn't zero the new space */ + _mesa_reference_shader(ctx, &shProg->Shaders[n], sh); + shProg->NumShaders++; +} + + +static GLint +get_attrib_location(struct gl_context *ctx, GLuint program, const GLchar *name) +{ + struct gl_shader_program *shProg + = _mesa_lookup_shader_program_err(ctx, program, "glGetAttribLocation"); + + if (!shProg) { + return -1; + } + + if (!shProg->LinkStatus) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetAttribLocation(program not linked)"); + return -1; + } + + if (!name) + return -1; + + if (shProg->VertexProgram) { + const struct gl_program_parameter_list *attribs = + shProg->VertexProgram->Base.Attributes; + if (attribs) { + GLint i = _mesa_lookup_parameter_index(attribs, -1, name); + if (i >= 0) { + return attribs->Parameters[i].StateIndexes[0]; + } + } + } + return -1; +} + + +static void +bind_attrib_location(struct gl_context *ctx, GLuint program, GLuint index, + const GLchar *name) +{ + struct gl_shader_program *shProg; + const GLint size = -1; /* unknown size */ + GLint i, oldIndex; + GLenum datatype = GL_FLOAT_VEC4; + + shProg = _mesa_lookup_shader_program_err(ctx, program, + "glBindAttribLocation"); + if (!shProg) { + return; + } + + if (!name) + return; + + if (strncmp(name, "gl_", 3) == 0) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBindAttribLocation(illegal name)"); + return; + } + + if (index >= ctx->Const.VertexProgram.MaxAttribs) { + _mesa_error(ctx, GL_INVALID_VALUE, "glBindAttribLocation(index)"); + return; + } + + if (shProg->LinkStatus) { + /* get current index/location for the attribute */ + oldIndex = get_attrib_location(ctx, program, name); + } + else { + oldIndex = -1; + } + + /* this will replace the current value if it's already in the list */ + i = _mesa_add_attribute(shProg->Attributes, name, size, datatype, index); + if (i < 0) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindAttribLocation"); + return; + } + + /* + * Note that this attribute binding won't go into effect until + * glLinkProgram is called again. + */ +} + + +static void +bind_frag_data_location(struct gl_context *ctx, GLuint program, + GLuint colorNumber, const GLchar *name) +{ + _mesa_problem(ctx, "bind_frag_data_location() not implemented yet"); +} + + +static GLuint +create_shader(struct gl_context *ctx, GLenum type) +{ + struct gl_shader *sh; + GLuint name; + + if (!validate_shader_target(ctx, type)) { + _mesa_error(ctx, GL_INVALID_ENUM, "CreateShader(type)"); + return 0; + } + + name = _mesa_HashFindFreeKeyBlock(ctx->Shared->ShaderObjects, 1); + sh = ctx->Driver.NewShader(ctx, name, type); + _mesa_HashInsert(ctx->Shared->ShaderObjects, name, sh); + + return name; +} + + +static GLuint +create_shader_program(struct gl_context *ctx) +{ + GLuint name; + struct gl_shader_program *shProg; + + name = _mesa_HashFindFreeKeyBlock(ctx->Shared->ShaderObjects, 1); + + shProg = ctx->Driver.NewShaderProgram(ctx, name); + + _mesa_HashInsert(ctx->Shared->ShaderObjects, name, shProg); + + assert(shProg->RefCount == 1); + + return name; +} + + +/** + * Named w/ "2" to indicate OpenGL 2.x vs GL_ARB_fragment_programs's + * DeleteProgramARB. + */ +static void +delete_shader_program(struct gl_context *ctx, GLuint name) +{ + /* + * NOTE: deleting shaders/programs works a bit differently than + * texture objects (and buffer objects, etc). Shader/program + * handles/IDs exist in the hash table until the object is really + * deleted (refcount==0). With texture objects, the handle/ID is + * removed from the hash table in glDeleteTextures() while the tex + * object itself might linger until its refcount goes to zero. + */ + struct gl_shader_program *shProg; + + shProg = _mesa_lookup_shader_program_err(ctx, name, "glDeleteProgram"); + if (!shProg) + return; + + shProg->DeletePending = GL_TRUE; + + /* effectively, decr shProg's refcount */ + _mesa_reference_shader_program(ctx, &shProg, NULL); +} + + +static void +delete_shader(struct gl_context *ctx, GLuint shader) +{ + struct gl_shader *sh; + + sh = _mesa_lookup_shader_err(ctx, shader, "glDeleteShader"); + if (!sh) + return; + + sh->DeletePending = GL_TRUE; + + /* effectively, decr sh's refcount */ + _mesa_reference_shader(ctx, &sh, NULL); +} + + +static void +detach_shader(struct gl_context *ctx, GLuint program, GLuint shader) +{ + struct gl_shader_program *shProg; + GLuint n; + GLuint i, j; + + shProg = _mesa_lookup_shader_program_err(ctx, program, "glDetachShader"); + if (!shProg) + return; + + n = shProg->NumShaders; + + for (i = 0; i < n; i++) { + if (shProg->Shaders[i]->Name == shader) { + /* found it */ + struct gl_shader **newList; + + /* release */ + _mesa_reference_shader(ctx, &shProg->Shaders[i], NULL); + + /* alloc new, smaller array */ + newList = (struct gl_shader **) + malloc((n - 1) * sizeof(struct gl_shader *)); + if (!newList) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glDetachShader"); + return; + } + for (j = 0; j < i; j++) { + newList[j] = shProg->Shaders[j]; + } + while (++i < n) + newList[j++] = shProg->Shaders[i]; + free(shProg->Shaders); + + shProg->Shaders = newList; + shProg->NumShaders = n - 1; + +#ifdef DEBUG + /* sanity check */ + { + for (j = 0; j < shProg->NumShaders; j++) { + assert(shProg->Shaders[j]->Type == GL_VERTEX_SHADER || + shProg->Shaders[j]->Type == GL_FRAGMENT_SHADER); + assert(shProg->Shaders[j]->RefCount > 0); + } + } +#endif + + return; + } + } + + /* not found */ + { + GLenum err; + if (is_shader(ctx, shader)) + err = GL_INVALID_OPERATION; + else if (is_program(ctx, shader)) + err = GL_INVALID_OPERATION; + else + err = GL_INVALID_VALUE; + _mesa_error(ctx, err, "glDetachProgram(shader)"); + return; + } +} + + +static void +get_active_attrib(struct gl_context *ctx, GLuint program, GLuint index, + GLsizei maxLength, GLsizei *length, GLint *size, + GLenum *type, GLchar *nameOut) +{ + const struct gl_program_parameter_list *attribs = NULL; + struct gl_shader_program *shProg; + + shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveAttrib"); + if (!shProg) + return; + + if (shProg->VertexProgram) + attribs = shProg->VertexProgram->Base.Attributes; + + if (!attribs || index >= attribs->NumParameters) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveAttrib(index)"); + return; + } + + _mesa_copy_string(nameOut, maxLength, length, + attribs->Parameters[index].Name); + + if (size) + *size = attribs->Parameters[index].Size + / _mesa_sizeof_glsl_type(attribs->Parameters[index].DataType); + + if (type) + *type = attribs->Parameters[index].DataType; +} + + +/** + * Return list of shaders attached to shader program. + */ +static void +get_attached_shaders(struct gl_context *ctx, GLuint program, GLsizei maxCount, + GLsizei *count, GLuint *obj) +{ + struct gl_shader_program *shProg = + _mesa_lookup_shader_program_err(ctx, program, "glGetAttachedShaders"); + if (shProg) { + GLuint i; + for (i = 0; i < (GLuint) maxCount && i < shProg->NumShaders; i++) { + obj[i] = shProg->Shaders[i]->Name; + } + if (count) + *count = i; + } +} + + +static GLint +get_frag_data_location(struct gl_context *ctx, GLuint program, + const GLchar *name) +{ + _mesa_problem(ctx, "get_frag_data_location() not implemented yet"); + return -1; +} + + + +/** + * glGetHandleARB() - return ID/name of currently bound shader program. + */ +static GLuint +get_handle(struct gl_context *ctx, GLenum pname) +{ + if (pname == GL_PROGRAM_OBJECT_ARB) { + if (ctx->Shader.ActiveProgram) + return ctx->Shader.ActiveProgram->Name; + else + return 0; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetHandleARB"); + return 0; + } +} + + +/** + * glGetProgramiv() - get shader program state. + * Note that this is for GLSL shader programs, not ARB vertex/fragment + * programs (see glGetProgramivARB). + */ +static void +get_programiv(struct gl_context *ctx, GLuint program, GLenum pname, GLint *params) +{ + const struct gl_program_parameter_list *attribs; + struct gl_shader_program *shProg + = _mesa_lookup_shader_program(ctx, program); + + if (!shProg) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramiv(program)"); + return; + } + + if (shProg->VertexProgram) + attribs = shProg->VertexProgram->Base.Attributes; + else + attribs = NULL; + + switch (pname) { + case GL_DELETE_STATUS: + *params = shProg->DeletePending; + break; + case GL_LINK_STATUS: + *params = shProg->LinkStatus; + break; + case GL_VALIDATE_STATUS: + *params = shProg->Validated; + break; + case GL_INFO_LOG_LENGTH: + *params = shProg->InfoLog ? strlen(shProg->InfoLog) + 1 : 0; + break; + case GL_ATTACHED_SHADERS: + *params = shProg->NumShaders; + break; + case GL_ACTIVE_ATTRIBUTES: + *params = attribs ? attribs->NumParameters : 0; + break; + case GL_ACTIVE_ATTRIBUTE_MAX_LENGTH: + *params = _mesa_longest_parameter_name(attribs, PROGRAM_INPUT) + 1; + break; + case GL_ACTIVE_UNIFORMS: + *params = shProg->Uniforms ? shProg->Uniforms->NumUniforms : 0; + break; + case GL_ACTIVE_UNIFORM_MAX_LENGTH: + *params = _mesa_longest_uniform_name(shProg->Uniforms); + if (*params > 0) + (*params)++; /* add one for terminating zero */ + break; + case GL_PROGRAM_BINARY_LENGTH_OES: + *params = 0; + break; +#if FEATURE_EXT_transform_feedback + case GL_TRANSFORM_FEEDBACK_VARYINGS: + *params = shProg->TransformFeedback.NumVarying; + break; + case GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH: + *params = longest_feedback_varying_name(shProg) + 1; + break; + case GL_TRANSFORM_FEEDBACK_BUFFER_MODE: + *params = shProg->TransformFeedback.BufferMode; + break; +#endif +#if FEATURE_ARB_geometry_shader4 + case GL_GEOMETRY_VERTICES_OUT_ARB: + *params = shProg->Geom.VerticesOut; + break; + case GL_GEOMETRY_INPUT_TYPE_ARB: + *params = shProg->Geom.InputType; + break; + case GL_GEOMETRY_OUTPUT_TYPE_ARB: + *params = shProg->Geom.OutputType; + break; +#endif + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramiv(pname)"); + return; + } +} + + +/** + * glGetShaderiv() - get GLSL shader state + */ +static void +get_shaderiv(struct gl_context *ctx, GLuint name, GLenum pname, GLint *params) +{ + struct gl_shader *shader = + _mesa_lookup_shader_err(ctx, name, "glGetShaderiv"); + + if (!shader) { + return; + } + + switch (pname) { + case GL_SHADER_TYPE: + *params = shader->Type; + break; + case GL_DELETE_STATUS: + *params = shader->DeletePending; + break; + case GL_COMPILE_STATUS: + *params = shader->CompileStatus; + break; + case GL_INFO_LOG_LENGTH: + *params = shader->InfoLog ? strlen(shader->InfoLog) + 1 : 0; + break; + case GL_SHADER_SOURCE_LENGTH: + *params = shader->Source ? strlen((char *) shader->Source) + 1 : 0; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glGetShaderiv(pname)"); + return; + } +} + + +static void +get_program_info_log(struct gl_context *ctx, GLuint program, GLsizei bufSize, + GLsizei *length, GLchar *infoLog) +{ + struct gl_shader_program *shProg + = _mesa_lookup_shader_program(ctx, program); + if (!shProg) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramInfoLog(program)"); + return; + } + _mesa_copy_string(infoLog, bufSize, length, shProg->InfoLog); +} + + +static void +get_shader_info_log(struct gl_context *ctx, GLuint shader, GLsizei bufSize, + GLsizei *length, GLchar *infoLog) +{ + struct gl_shader *sh = _mesa_lookup_shader(ctx, shader); + if (!sh) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGetShaderInfoLog(shader)"); + return; + } + _mesa_copy_string(infoLog, bufSize, length, sh->InfoLog); +} + + +/** + * Return shader source code. + */ +static void +get_shader_source(struct gl_context *ctx, GLuint shader, GLsizei maxLength, + GLsizei *length, GLchar *sourceOut) +{ + struct gl_shader *sh; + sh = _mesa_lookup_shader_err(ctx, shader, "glGetShaderSource"); + if (!sh) { + return; + } + _mesa_copy_string(sourceOut, maxLength, length, sh->Source); +} + + +/** + * Set/replace shader source code. + */ +static void +shader_source(struct gl_context *ctx, GLuint shader, const GLchar *source) +{ + struct gl_shader *sh; + + sh = _mesa_lookup_shader_err(ctx, shader, "glShaderSource"); + if (!sh) + return; + + /* free old shader source string and install new one */ + if (sh->Source) { + free((void *) sh->Source); + } + sh->Source = source; + sh->CompileStatus = GL_FALSE; +#ifdef DEBUG + sh->SourceChecksum = _mesa_str_checksum(sh->Source); +#endif +} + + +/** + * Compile a shader. + */ +static void +compile_shader(struct gl_context *ctx, GLuint shaderObj) +{ + struct gl_shader *sh; + struct gl_shader_compiler_options *options; + + sh = _mesa_lookup_shader_err(ctx, shaderObj, "glCompileShader"); + if (!sh) + return; + + options = &ctx->ShaderCompilerOptions[_mesa_shader_type_to_index(sh->Type)]; + + /* set default pragma state for shader */ + sh->Pragmas = options->DefaultPragmas; + + /* this call will set the sh->CompileStatus field to indicate if + * compilation was successful. + */ + _mesa_glsl_compile_shader(ctx, sh); +} + + +/** + * Link a program's shaders. + */ +static void +link_program(struct gl_context *ctx, GLuint program) +{ + struct gl_shader_program *shProg; + struct gl_transform_feedback_object *obj = + ctx->TransformFeedback.CurrentObject; + + shProg = _mesa_lookup_shader_program_err(ctx, program, "glLinkProgram"); + if (!shProg) + return; + + if (obj->Active + && (shProg == ctx->Shader.CurrentVertexProgram + || shProg == ctx->Shader.CurrentGeometryProgram + || shProg == ctx->Shader.CurrentFragmentProgram)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glLinkProgram(transform feedback active"); + return; + } + + FLUSH_VERTICES(ctx, _NEW_PROGRAM); + + _mesa_glsl_link_shader(ctx, shProg); + + /* debug code */ + if (0) { + GLuint i; + + printf("Link %u shaders in program %u: %s\n", + shProg->NumShaders, shProg->Name, + shProg->LinkStatus ? "Success" : "Failed"); + + for (i = 0; i < shProg->NumShaders; i++) { + printf(" shader %u, type 0x%x\n", + shProg->Shaders[i]->Name, + shProg->Shaders[i]->Type); + } + } +} + + +/** + * Print basic shader info (for debug). + */ +static void +print_shader_info(const struct gl_shader_program *shProg) +{ + GLuint i; + + printf("Mesa: glUseProgram(%u)\n", shProg->Name); + for (i = 0; i < shProg->NumShaders; i++) { + const char *s; + switch (shProg->Shaders[i]->Type) { + case GL_VERTEX_SHADER: + s = "vertex"; + break; + case GL_FRAGMENT_SHADER: + s = "fragment"; + break; + case GL_GEOMETRY_SHADER: + s = "geometry"; + break; + default: + s = ""; + } + printf(" %s shader %u, checksum %u\n", s, + shProg->Shaders[i]->Name, + shProg->Shaders[i]->SourceChecksum); + } + if (shProg->VertexProgram) + printf(" vert prog %u\n", shProg->VertexProgram->Base.Id); + if (shProg->FragmentProgram) + printf(" frag prog %u\n", shProg->FragmentProgram->Base.Id); +} + + +/** + * Use the named shader program for subsequent glUniform calls + */ +void +_mesa_active_program(struct gl_context *ctx, struct gl_shader_program *shProg, + const char *caller) +{ + if ((shProg != NULL) && !shProg->LinkStatus) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "%s(program %u not linked)", caller, shProg->Name); + return; + } + + if (ctx->Shader.ActiveProgram != shProg) { + _mesa_reference_shader_program(ctx, &ctx->Shader.ActiveProgram, shProg); + } +} + +/** + */ +static bool +use_shader_program(struct gl_context *ctx, GLenum type, + struct gl_shader_program *shProg) +{ + struct gl_shader_program **target; + + switch (type) { +#if FEATURE_ARB_vertex_shader + case GL_VERTEX_SHADER: + target = &ctx->Shader.CurrentVertexProgram; + if ((shProg == NULL) + || (shProg->_LinkedShaders[MESA_SHADER_VERTEX] == NULL)) { + shProg = NULL; + } + break; +#endif +#if FEATURE_ARB_geometry_shader4 + case GL_GEOMETRY_SHADER_ARB: + target = &ctx->Shader.CurrentGeometryProgram; + if ((shProg == NULL) + || (shProg->_LinkedShaders[MESA_SHADER_GEOMETRY] == NULL)) { + shProg = NULL; + } + break; +#endif +#if FEATURE_ARB_fragment_shader + case GL_FRAGMENT_SHADER: + target = &ctx->Shader.CurrentFragmentProgram; + if ((shProg == NULL) + || (shProg->_LinkedShaders[MESA_SHADER_FRAGMENT] == NULL)) { + shProg = NULL; + } + break; +#endif + default: + return false; + } + + if (*target != shProg) { + FLUSH_VERTICES(ctx, _NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS); + _mesa_reference_shader_program(ctx, target, shProg); + return true; + } + + return false; +} + +/** + * Use the named shader program for subsequent rendering. + */ +void +_mesa_use_program(struct gl_context *ctx, struct gl_shader_program *shProg) +{ + use_shader_program(ctx, GL_VERTEX_SHADER, shProg); + use_shader_program(ctx, GL_GEOMETRY_SHADER_ARB, shProg); + use_shader_program(ctx, GL_FRAGMENT_SHADER, shProg); + _mesa_active_program(ctx, shProg, "glUseProgram"); + + if (ctx->Driver.UseProgram) + ctx->Driver.UseProgram(ctx, shProg); +} + + +/** + * Validate a program's samplers. + * Specifically, check that there aren't two samplers of different types + * pointing to the same texture unit. + * \return GL_TRUE if valid, GL_FALSE if invalid + */ +static GLboolean +validate_samplers(const struct gl_program *prog, char *errMsg) +{ + static const char *targetName[] = { + "TEXTURE_2D_ARRAY", + "TEXTURE_1D_ARRAY", + "TEXTURE_CUBE", + "TEXTURE_3D", + "TEXTURE_RECT", + "TEXTURE_2D", + "TEXTURE_1D", + }; + GLint targetUsed[MAX_TEXTURE_IMAGE_UNITS]; + GLbitfield samplersUsed = prog->SamplersUsed; + GLuint i; + + assert(Elements(targetName) == NUM_TEXTURE_TARGETS); + + if (samplersUsed == 0x0) + return GL_TRUE; + + for (i = 0; i < Elements(targetUsed); i++) + targetUsed[i] = -1; + + /* walk over bits which are set in 'samplers' */ + while (samplersUsed) { + GLuint unit; + gl_texture_index target; + GLint sampler = _mesa_ffs(samplersUsed) - 1; + assert(sampler >= 0); + assert(sampler < MAX_TEXTURE_IMAGE_UNITS); + unit = prog->SamplerUnits[sampler]; + target = prog->SamplerTargets[sampler]; + if (targetUsed[unit] != -1 && targetUsed[unit] != (int) target) { + _mesa_snprintf(errMsg, 100, + "Texture unit %d is accessed both as %s and %s", + unit, targetName[targetUsed[unit]], targetName[target]); + return GL_FALSE; + } + targetUsed[unit] = target; + samplersUsed ^= (1 << sampler); + } + + return GL_TRUE; +} + + +/** + * Do validation of the given shader program. + * \param errMsg returns error message if validation fails. + * \return GL_TRUE if valid, GL_FALSE if invalid (and set errMsg) + */ +static GLboolean +validate_shader_program(const struct gl_shader_program *shProg, + char *errMsg) +{ + const struct gl_vertex_program *vp = shProg->VertexProgram; + const struct gl_fragment_program *fp = shProg->FragmentProgram; + + if (!shProg->LinkStatus) { + return GL_FALSE; + } + + /* From the GL spec, a program is invalid if any of these are true: + + any two active samplers in the current program object are of + different types, but refer to the same texture image unit, + + any active sampler in the current program object refers to a texture + image unit where fixed-function fragment processing accesses a + texture target that does not match the sampler type, or + + the sum of the number of active samplers in the program and the + number of texture image units enabled for fixed-function fragment + processing exceeds the combined limit on the total number of texture + image units allowed. + */ + + + /* + * Check: any two active samplers in the current program object are of + * different types, but refer to the same texture image unit, + */ + if (vp && !validate_samplers(&vp->Base, errMsg)) { + return GL_FALSE; + } + if (fp && !validate_samplers(&fp->Base, errMsg)) { + return GL_FALSE; + } + + return GL_TRUE; +} + + +/** + * Called via glValidateProgram() + */ +static void +validate_program(struct gl_context *ctx, GLuint program) +{ + struct gl_shader_program *shProg; + char errMsg[100]; + + shProg = _mesa_lookup_shader_program_err(ctx, program, "glValidateProgram"); + if (!shProg) { + return; + } + + shProg->Validated = validate_shader_program(shProg, errMsg); + if (!shProg->Validated) { + /* update info log */ + if (shProg->InfoLog) { + ralloc_free(shProg->InfoLog); + } + shProg->InfoLog = ralloc_strdup(shProg, errMsg); + } +} + + + +void GLAPIENTRY +_mesa_AttachObjectARB(GLhandleARB program, GLhandleARB shader) +{ + GET_CURRENT_CONTEXT(ctx); + attach_shader(ctx, program, shader); +} + + +void GLAPIENTRY +_mesa_AttachShader(GLuint program, GLuint shader) +{ + GET_CURRENT_CONTEXT(ctx); + attach_shader(ctx, program, shader); +} + + +void GLAPIENTRY +_mesa_BindAttribLocationARB(GLhandleARB program, GLuint index, + const GLcharARB *name) +{ + GET_CURRENT_CONTEXT(ctx); + bind_attrib_location(ctx, program, index, name); +} + + +/* GL_EXT_gpu_shader4, GL3 */ +void GLAPIENTRY +_mesa_BindFragDataLocation(GLuint program, GLuint colorNumber, + const GLchar *name) +{ + GET_CURRENT_CONTEXT(ctx); + bind_frag_data_location(ctx, program, colorNumber, name); +} + + +void GLAPIENTRY +_mesa_CompileShaderARB(GLhandleARB shaderObj) +{ + GET_CURRENT_CONTEXT(ctx); + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glCompileShader %u\n", shaderObj); + compile_shader(ctx, shaderObj); +} + + +GLuint GLAPIENTRY +_mesa_CreateShader(GLenum type) +{ + GET_CURRENT_CONTEXT(ctx); + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glCreateShader %s\n", _mesa_lookup_enum_by_nr(type)); + return create_shader(ctx, type); +} + + +GLhandleARB GLAPIENTRY +_mesa_CreateShaderObjectARB(GLenum type) +{ + GET_CURRENT_CONTEXT(ctx); + return create_shader(ctx, type); +} + + +GLuint GLAPIENTRY +_mesa_CreateProgram(void) +{ + GET_CURRENT_CONTEXT(ctx); + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glCreateProgram\n"); + return create_shader_program(ctx); +} + + +GLhandleARB GLAPIENTRY +_mesa_CreateProgramObjectARB(void) +{ + GET_CURRENT_CONTEXT(ctx); + return create_shader_program(ctx); +} + + +void GLAPIENTRY +_mesa_DeleteObjectARB(GLhandleARB obj) +{ + if (MESA_VERBOSE & VERBOSE_API) { + GET_CURRENT_CONTEXT(ctx); + _mesa_debug(ctx, "glDeleteObjectARB(%u)\n", obj); + } + + if (obj) { + GET_CURRENT_CONTEXT(ctx); + FLUSH_VERTICES(ctx, 0); + if (is_program(ctx, obj)) { + delete_shader_program(ctx, obj); + } + else if (is_shader(ctx, obj)) { + delete_shader(ctx, obj); + } + else { + /* error? */ + } + } +} + + +void GLAPIENTRY +_mesa_DeleteProgram(GLuint name) +{ + if (name) { + GET_CURRENT_CONTEXT(ctx); + FLUSH_VERTICES(ctx, 0); + delete_shader_program(ctx, name); + } +} + + +void GLAPIENTRY +_mesa_DeleteShader(GLuint name) +{ + if (name) { + GET_CURRENT_CONTEXT(ctx); + FLUSH_VERTICES(ctx, 0); + delete_shader(ctx, name); + } +} + + +void GLAPIENTRY +_mesa_DetachObjectARB(GLhandleARB program, GLhandleARB shader) +{ + GET_CURRENT_CONTEXT(ctx); + detach_shader(ctx, program, shader); +} + + +void GLAPIENTRY +_mesa_DetachShader(GLuint program, GLuint shader) +{ + GET_CURRENT_CONTEXT(ctx); + detach_shader(ctx, program, shader); +} + + +void GLAPIENTRY +_mesa_GetActiveAttribARB(GLhandleARB program, GLuint index, + GLsizei maxLength, GLsizei * length, GLint * size, + GLenum * type, GLcharARB * name) +{ + GET_CURRENT_CONTEXT(ctx); + get_active_attrib(ctx, program, index, maxLength, length, size, type, name); +} + + +void GLAPIENTRY +_mesa_GetAttachedObjectsARB(GLhandleARB container, GLsizei maxCount, + GLsizei * count, GLhandleARB * obj) +{ + GET_CURRENT_CONTEXT(ctx); + get_attached_shaders(ctx, container, maxCount, count, obj); +} + + +void GLAPIENTRY +_mesa_GetAttachedShaders(GLuint program, GLsizei maxCount, + GLsizei *count, GLuint *obj) +{ + GET_CURRENT_CONTEXT(ctx); + get_attached_shaders(ctx, program, maxCount, count, obj); +} + + +GLint GLAPIENTRY +_mesa_GetAttribLocationARB(GLhandleARB program, const GLcharARB * name) +{ + GET_CURRENT_CONTEXT(ctx); + return get_attrib_location(ctx, program, name); +} + + +/* GL_EXT_gpu_shader4, GL3 */ +GLint GLAPIENTRY +_mesa_GetFragDataLocation(GLuint program, const GLchar *name) +{ + GET_CURRENT_CONTEXT(ctx); + return get_frag_data_location(ctx, program, name); +} + + + +void GLAPIENTRY +_mesa_GetInfoLogARB(GLhandleARB object, GLsizei maxLength, GLsizei * length, + GLcharARB * infoLog) +{ + GET_CURRENT_CONTEXT(ctx); + if (is_program(ctx, object)) { + get_program_info_log(ctx, object, maxLength, length, infoLog); + } + else if (is_shader(ctx, object)) { + get_shader_info_log(ctx, object, maxLength, length, infoLog); + } + else { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGetInfoLogARB"); + } +} + + +void GLAPIENTRY +_mesa_GetObjectParameterivARB(GLhandleARB object, GLenum pname, GLint *params) +{ + GET_CURRENT_CONTEXT(ctx); + /* Implement in terms of GetProgramiv, GetShaderiv */ + if (is_program(ctx, object)) { + if (pname == GL_OBJECT_TYPE_ARB) { + *params = GL_PROGRAM_OBJECT_ARB; + } + else { + get_programiv(ctx, object, pname, params); + } + } + else if (is_shader(ctx, object)) { + if (pname == GL_OBJECT_TYPE_ARB) { + *params = GL_SHADER_OBJECT_ARB; + } + else { + get_shaderiv(ctx, object, pname, params); + } + } + else { + _mesa_error(ctx, GL_INVALID_VALUE, "glGetObjectParameterivARB"); + } +} + + +void GLAPIENTRY +_mesa_GetObjectParameterfvARB(GLhandleARB object, GLenum pname, + GLfloat *params) +{ + GLint iparams[1]; /* XXX is one element enough? */ + _mesa_GetObjectParameterivARB(object, pname, iparams); + params[0] = (GLfloat) iparams[0]; +} + + +void GLAPIENTRY +_mesa_GetProgramiv(GLuint program, GLenum pname, GLint *params) +{ + GET_CURRENT_CONTEXT(ctx); + get_programiv(ctx, program, pname, params); +} + + +void GLAPIENTRY +_mesa_GetShaderiv(GLuint shader, GLenum pname, GLint *params) +{ + GET_CURRENT_CONTEXT(ctx); + get_shaderiv(ctx, shader, pname, params); +} + + +void GLAPIENTRY +_mesa_GetProgramInfoLog(GLuint program, GLsizei bufSize, + GLsizei *length, GLchar *infoLog) +{ + GET_CURRENT_CONTEXT(ctx); + get_program_info_log(ctx, program, bufSize, length, infoLog); +} + + +void GLAPIENTRY +_mesa_GetShaderInfoLog(GLuint shader, GLsizei bufSize, + GLsizei *length, GLchar *infoLog) +{ + GET_CURRENT_CONTEXT(ctx); + get_shader_info_log(ctx, shader, bufSize, length, infoLog); +} + + +void GLAPIENTRY +_mesa_GetShaderSourceARB(GLhandleARB shader, GLsizei maxLength, + GLsizei *length, GLcharARB *sourceOut) +{ + GET_CURRENT_CONTEXT(ctx); + get_shader_source(ctx, shader, maxLength, length, sourceOut); +} + + +GLhandleARB GLAPIENTRY +_mesa_GetHandleARB(GLenum pname) +{ + GET_CURRENT_CONTEXT(ctx); + return get_handle(ctx, pname); +} + + +GLboolean GLAPIENTRY +_mesa_IsProgram(GLuint name) +{ + GET_CURRENT_CONTEXT(ctx); + return is_program(ctx, name); +} + + +GLboolean GLAPIENTRY +_mesa_IsShader(GLuint name) +{ + GET_CURRENT_CONTEXT(ctx); + return is_shader(ctx, name); +} + + +void GLAPIENTRY +_mesa_LinkProgramARB(GLhandleARB programObj) +{ + GET_CURRENT_CONTEXT(ctx); + link_program(ctx, programObj); +} + + + +/** + * Read shader source code from a file. + * Useful for debugging to override an app's shader. + */ +static GLcharARB * +read_shader(const char *fname) +{ + const int max = 50*1000; + FILE *f = fopen(fname, "r"); + GLcharARB *buffer, *shader; + int len; + + if (!f) { + return NULL; + } + + buffer = (char *) malloc(max); + len = fread(buffer, 1, max, f); + buffer[len] = 0; + + fclose(f); + + shader = _mesa_strdup(buffer); + free(buffer); + + return shader; +} + + +/** + * Called via glShaderSource() and glShaderSourceARB() API functions. + * Basically, concatenate the source code strings into one long string + * and pass it to _mesa_shader_source(). + */ +void GLAPIENTRY +_mesa_ShaderSourceARB(GLhandleARB shaderObj, GLsizei count, + const GLcharARB ** string, const GLint * length) +{ + GET_CURRENT_CONTEXT(ctx); + GLint *offsets; + GLsizei i, totalLength; + GLcharARB *source; + GLuint checksum; + + if (!shaderObj || string == NULL) { + _mesa_error(ctx, GL_INVALID_VALUE, "glShaderSourceARB"); + return; + } + + /* + * This array holds offsets of where the appropriate string ends, thus the + * last element will be set to the total length of the source code. + */ + offsets = (GLint *) malloc(count * sizeof(GLint)); + if (offsets == NULL) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glShaderSourceARB"); + return; + } + + for (i = 0; i < count; i++) { + if (string[i] == NULL) { + free((GLvoid *) offsets); + _mesa_error(ctx, GL_INVALID_OPERATION, "glShaderSourceARB(null string)"); + return; + } + if (length == NULL || length[i] < 0) + offsets[i] = strlen(string[i]); + else + offsets[i] = length[i]; + /* accumulate string lengths */ + if (i > 0) + offsets[i] += offsets[i - 1]; + } + + /* Total length of source string is sum off all strings plus two. + * One extra byte for terminating zero, another extra byte to silence + * valgrind warnings in the parser/grammer code. + */ + totalLength = offsets[count - 1] + 2; + source = (GLcharARB *) malloc(totalLength * sizeof(GLcharARB)); + if (source == NULL) { + free((GLvoid *) offsets); + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glShaderSourceARB"); + return; + } + + for (i = 0; i < count; i++) { + GLint start = (i > 0) ? offsets[i - 1] : 0; + memcpy(source + start, string[i], + (offsets[i] - start) * sizeof(GLcharARB)); + } + source[totalLength - 1] = '\0'; + source[totalLength - 2] = '\0'; + + if (SHADER_SUBST) { + /* Compute the shader's source code checksum then try to open a file + * named newshader_. If it exists, use it in place of the + * original shader source code. For debugging. + */ + char filename[100]; + GLcharARB *newSource; + + checksum = _mesa_str_checksum(source); + + _mesa_snprintf(filename, sizeof(filename), "newshader_%d", checksum); + + newSource = read_shader(filename); + if (newSource) { + fprintf(stderr, "Mesa: Replacing shader %u chksum=%d with %s\n", + shaderObj, checksum, filename); + free(source); + source = newSource; + } + } + + shader_source(ctx, shaderObj, source); + + if (SHADER_SUBST) { + struct gl_shader *sh = _mesa_lookup_shader(ctx, shaderObj); + if (sh) + sh->SourceChecksum = checksum; /* save original checksum */ + } + + free(offsets); +} + + +void GLAPIENTRY +_mesa_UseProgramObjectARB(GLhandleARB program) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_shader_program *shProg; + struct gl_transform_feedback_object *obj = + ctx->TransformFeedback.CurrentObject; + + if (obj->Active) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glUseProgram(transform feedback active)"); + return; + } + + if (program) { + shProg = _mesa_lookup_shader_program_err(ctx, program, "glUseProgram"); + if (!shProg) { + return; + } + if (!shProg->LinkStatus) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glUseProgram(program %u not linked)", program); + return; + } + + /* debug code */ + if (ctx->Shader.Flags & GLSL_USE_PROG) { + print_shader_info(shProg); + } + } + else { + shProg = NULL; + } + + _mesa_use_program(ctx, shProg); +} + + +void GLAPIENTRY +_mesa_ValidateProgramARB(GLhandleARB program) +{ + GET_CURRENT_CONTEXT(ctx); + validate_program(ctx, program); +} + +#ifdef FEATURE_ES2 + +void GLAPIENTRY +_mesa_GetShaderPrecisionFormat(GLenum shadertype, GLenum precisiontype, + GLint* range, GLint* precision) +{ + const struct gl_program_constants *limits; + const struct gl_precision *p; + GET_CURRENT_CONTEXT(ctx); + + switch (shadertype) { + case GL_VERTEX_SHADER: + limits = &ctx->Const.VertexProgram; + break; + case GL_FRAGMENT_SHADER: + limits = &ctx->Const.FragmentProgram; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetShaderPrecisionFormat(shadertype)"); + return; + } + + switch (precisiontype) { + case GL_LOW_FLOAT: + p = &limits->LowFloat; + break; + case GL_MEDIUM_FLOAT: + p = &limits->MediumFloat; + break; + case GL_HIGH_FLOAT: + p = &limits->HighFloat; + break; + case GL_LOW_INT: + p = &limits->LowInt; + break; + case GL_MEDIUM_INT: + p = &limits->MediumInt; + break; + case GL_HIGH_INT: + p = &limits->HighInt; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetShaderPrecisionFormat(precisiontype)"); + return; + } + + range[0] = p->RangeMin; + range[1] = p->RangeMax; + precision[0] = p->Precision; +} + + +void GLAPIENTRY +_mesa_ReleaseShaderCompiler(void) +{ + _mesa_destroy_shader_compiler_caches(); +} + + +void GLAPIENTRY +_mesa_ShaderBinary(GLint n, const GLuint* shaders, GLenum binaryformat, + const void* binary, GLint length) +{ + GET_CURRENT_CONTEXT(ctx); + (void) n; + (void) shaders; + (void) binaryformat; + (void) binary; + (void) length; + _mesa_error(ctx, GL_INVALID_OPERATION, __FUNCTION__); +} + +#endif /* FEATURE_ES2 */ + + +#if FEATURE_ARB_geometry_shader4 + +void GLAPIENTRY +_mesa_ProgramParameteriARB(GLuint program, GLenum pname, + GLint value) +{ + struct gl_shader_program *shProg; + GET_CURRENT_CONTEXT(ctx); + + ASSERT_OUTSIDE_BEGIN_END(ctx); + + shProg = _mesa_lookup_shader_program_err(ctx, program, + "glProgramParameteri"); + if (!shProg) + return; + + switch (pname) { + case GL_GEOMETRY_VERTICES_OUT_ARB: + if (value < 1 || + (unsigned) value > ctx->Const.MaxGeometryOutputVertices) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glProgramParameteri(GL_GEOMETRY_VERTICES_OUT_ARB=%d", + value); + return; + } + shProg->Geom.VerticesOut = value; + break; + case GL_GEOMETRY_INPUT_TYPE_ARB: + switch (value) { + case GL_POINTS: + case GL_LINES: + case GL_LINES_ADJACENCY_ARB: + case GL_TRIANGLES: + case GL_TRIANGLES_ADJACENCY_ARB: + shProg->Geom.InputType = value; + break; + default: + _mesa_error(ctx, GL_INVALID_VALUE, + "glProgramParameteri(geometry input type = %s", + _mesa_lookup_enum_by_nr(value)); + return; + } + break; + case GL_GEOMETRY_OUTPUT_TYPE_ARB: + switch (value) { + case GL_POINTS: + case GL_LINE_STRIP: + case GL_TRIANGLE_STRIP: + shProg->Geom.OutputType = value; + break; + default: + _mesa_error(ctx, GL_INVALID_VALUE, + "glProgramParameteri(geometry output type = %s", + _mesa_lookup_enum_by_nr(value)); + return; + } + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glProgramParameteriARB(pname=%s)", + _mesa_lookup_enum_by_nr(pname)); + break; + } +} + +#endif + +void +_mesa_use_shader_program(struct gl_context *ctx, GLenum type, + struct gl_shader_program *shProg) +{ + use_shader_program(ctx, type, shProg); + + if (ctx->Driver.UseProgram) + ctx->Driver.UseProgram(ctx, shProg); +} + +void GLAPIENTRY +_mesa_UseShaderProgramEXT(GLenum type, GLuint program) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_shader_program *shProg = NULL; + + if (!validate_shader_target(ctx, type)) { + _mesa_error(ctx, GL_INVALID_ENUM, "glUseShaderProgramEXT(type)"); + return; + } + + if (ctx->TransformFeedback.CurrentObject->Active) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glUseShaderProgramEXT(transform feedback is active)"); + return; + } + + if (program) { + shProg = _mesa_lookup_shader_program_err(ctx, program, + "glUseShaderProgramEXT"); + if (shProg == NULL) + return; + + if (!shProg->LinkStatus) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glUseShaderProgramEXT(program not linked)"); + return; + } + } + + _mesa_use_shader_program(ctx, type, shProg); +} + +void GLAPIENTRY +_mesa_ActiveProgramEXT(GLuint program) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_shader_program *shProg = (program != 0) + ? _mesa_lookup_shader_program_err(ctx, program, "glActiveProgramEXT") + : NULL; + + _mesa_active_program(ctx, shProg, "glActiveProgramEXT"); + return; +} + +GLuint GLAPIENTRY +_mesa_CreateShaderProgramEXT(GLenum type, const GLchar *string) +{ + GET_CURRENT_CONTEXT(ctx); + const GLuint shader = create_shader(ctx, type); + GLuint program = 0; + + if (shader) { + shader_source(ctx, shader, _mesa_strdup(string)); + compile_shader(ctx, shader); + + program = create_shader_program(ctx); + if (program) { + struct gl_shader_program *shProg; + struct gl_shader *sh; + GLint compiled = GL_FALSE; + + shProg = _mesa_lookup_shader_program(ctx, program); + sh = _mesa_lookup_shader(ctx, shader); + + get_shaderiv(ctx, shader, GL_COMPILE_STATUS, &compiled); + if (compiled) { + attach_shader(ctx, program, shader); + link_program(ctx, program); + detach_shader(ctx, program, shader); + +#if 0 + /* Possibly... */ + if (active-user-defined-varyings-in-linked-program) { + append-error-to-info-log; + shProg->LinkStatus = GL_FALSE; + } +#endif + } + + ralloc_strcat(&shProg->InfoLog, sh->InfoLog); + } + + delete_shader(ctx, shader); + } + + return program; +} + +/** + * Plug in shader-related functions into API dispatch table. + */ +void +_mesa_init_shader_dispatch(struct _glapi_table *exec) +{ +#if FEATURE_GL + /* GL_ARB_vertex/fragment_shader */ + SET_DeleteObjectARB(exec, _mesa_DeleteObjectARB); + SET_GetHandleARB(exec, _mesa_GetHandleARB); + SET_DetachObjectARB(exec, _mesa_DetachObjectARB); + SET_CreateShaderObjectARB(exec, _mesa_CreateShaderObjectARB); + SET_ShaderSourceARB(exec, _mesa_ShaderSourceARB); + SET_CompileShaderARB(exec, _mesa_CompileShaderARB); + SET_CreateProgramObjectARB(exec, _mesa_CreateProgramObjectARB); + SET_AttachObjectARB(exec, _mesa_AttachObjectARB); + SET_LinkProgramARB(exec, _mesa_LinkProgramARB); + SET_UseProgramObjectARB(exec, _mesa_UseProgramObjectARB); + SET_ValidateProgramARB(exec, _mesa_ValidateProgramARB); + SET_GetObjectParameterfvARB(exec, _mesa_GetObjectParameterfvARB); + SET_GetObjectParameterivARB(exec, _mesa_GetObjectParameterivARB); + SET_GetInfoLogARB(exec, _mesa_GetInfoLogARB); + SET_GetAttachedObjectsARB(exec, _mesa_GetAttachedObjectsARB); + SET_GetShaderSourceARB(exec, _mesa_GetShaderSourceARB); + + /* OpenGL 2.0 */ + SET_AttachShader(exec, _mesa_AttachShader); + SET_CreateProgram(exec, _mesa_CreateProgram); + SET_CreateShader(exec, _mesa_CreateShader); + SET_DeleteProgram(exec, _mesa_DeleteProgram); + SET_DeleteShader(exec, _mesa_DeleteShader); + SET_DetachShader(exec, _mesa_DetachShader); + SET_GetAttachedShaders(exec, _mesa_GetAttachedShaders); + SET_GetProgramiv(exec, _mesa_GetProgramiv); + SET_GetProgramInfoLog(exec, _mesa_GetProgramInfoLog); + SET_GetShaderiv(exec, _mesa_GetShaderiv); + SET_GetShaderInfoLog(exec, _mesa_GetShaderInfoLog); + SET_IsProgram(exec, _mesa_IsProgram); + SET_IsShader(exec, _mesa_IsShader); + +#if FEATURE_ARB_vertex_shader + SET_BindAttribLocationARB(exec, _mesa_BindAttribLocationARB); + SET_GetActiveAttribARB(exec, _mesa_GetActiveAttribARB); + SET_GetAttribLocationARB(exec, _mesa_GetAttribLocationARB); +#endif + +#if FEATURE_ARB_geometry_shader4 + SET_ProgramParameteriARB(exec, _mesa_ProgramParameteriARB); +#endif + + SET_UseShaderProgramEXT(exec, _mesa_UseShaderProgramEXT); + SET_ActiveProgramEXT(exec, _mesa_ActiveProgramEXT); + SET_CreateShaderProgramEXT(exec, _mesa_CreateShaderProgramEXT); + + /* GL_EXT_gpu_shader4 / GL 3.0 */ + SET_BindFragDataLocationEXT(exec, _mesa_BindFragDataLocation); + SET_GetFragDataLocationEXT(exec, _mesa_GetFragDataLocation); + + /* GL_ARB_ES2_compatibility */ + SET_ReleaseShaderCompiler(exec, _mesa_ReleaseShaderCompiler); + SET_GetShaderPrecisionFormat(exec, _mesa_GetShaderPrecisionFormat); + +#endif /* FEATURE_GL */ +} + diff --git a/mesalib/src/mesa/main/shaderobj.c b/mesalib/src/mesa/main/shaderobj.c index 1d7584559..06a2f53af 100644 --- a/mesalib/src/mesa/main/shaderobj.c +++ b/mesalib/src/mesa/main/shaderobj.c @@ -1,413 +1,415 @@ -/* - * Mesa 3-D graphics library - * - * Copyright (C) 2004-2008 Brian Paul All Rights Reserved. - * Copyright (C) 2009-2010 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/** - * \file shaderobj.c - * \author Brian Paul - * - */ - - -#include "main/glheader.h" -#include "main/context.h" -#include "main/hash.h" -#include "main/mfeatures.h" -#include "main/mtypes.h" -#include "main/shaderobj.h" -#include "program/program.h" -#include "program/prog_parameter.h" -#include "program/prog_uniform.h" -#include "ralloc.h" - -/**********************************************************************/ -/*** Shader object functions ***/ -/**********************************************************************/ - - -/** - * Set ptr to point to sh. - * If ptr is pointing to another shader, decrement its refcount (and delete - * if refcount hits zero). - * Then set ptr to point to sh, incrementing its refcount. - */ -void -_mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr, - struct gl_shader *sh) -{ - assert(ptr); - if (*ptr == sh) { - /* no-op */ - return; - } - if (*ptr) { - /* Unreference the old shader */ - GLboolean deleteFlag = GL_FALSE; - struct gl_shader *old = *ptr; - - ASSERT(old->RefCount > 0); - old->RefCount--; - /*printf("SHADER DECR %p (%d) to %d\n", - (void*) old, old->Name, old->RefCount);*/ - deleteFlag = (old->RefCount == 0); - - if (deleteFlag) { - _mesa_HashRemove(ctx->Shared->ShaderObjects, old->Name); - ctx->Driver.DeleteShader(ctx, old); - } - - *ptr = NULL; - } - assert(!*ptr); - - if (sh) { - /* reference new */ - sh->RefCount++; - /*printf("SHADER INCR %p (%d) to %d\n", - (void*) sh, sh->Name, sh->RefCount);*/ - *ptr = sh; - } -} - -void -_mesa_init_shader(struct gl_context *ctx, struct gl_shader *shader) -{ - shader->RefCount = 1; -} - -/** - * Allocate a new gl_shader object, initialize it. - * Called via ctx->Driver.NewShader() - */ -struct gl_shader * -_mesa_new_shader(struct gl_context *ctx, GLuint name, GLenum type) -{ - struct gl_shader *shader; - assert(type == GL_FRAGMENT_SHADER || type == GL_VERTEX_SHADER || - type == GL_GEOMETRY_SHADER_ARB); - shader = rzalloc(NULL, struct gl_shader); - if (shader) { - shader->Type = type; - shader->Name = name; - _mesa_init_shader(ctx, shader); - } - return shader; -} - - -/** - * Delete a shader object. - * Called via ctx->Driver.DeleteShader(). - */ -static void -_mesa_delete_shader(struct gl_context *ctx, struct gl_shader *sh) -{ - if (sh->Source) - free((void *) sh->Source); - _mesa_reference_program(ctx, &sh->Program, NULL); - ralloc_free(sh); -} - - -/** - * Lookup a GLSL shader object. - */ -struct gl_shader * -_mesa_lookup_shader(struct gl_context *ctx, GLuint name) -{ - if (name) { - struct gl_shader *sh = (struct gl_shader *) - _mesa_HashLookup(ctx->Shared->ShaderObjects, name); - /* Note that both gl_shader and gl_shader_program objects are kept - * in the same hash table. Check the object's type to be sure it's - * what we're expecting. - */ - if (sh && sh->Type == GL_SHADER_PROGRAM_MESA) { - return NULL; - } - return sh; - } - return NULL; -} - - -/** - * As above, but record an error if shader is not found. - */ -struct gl_shader * -_mesa_lookup_shader_err(struct gl_context *ctx, GLuint name, const char *caller) -{ - if (!name) { - _mesa_error(ctx, GL_INVALID_VALUE, "%s", caller); - return NULL; - } - else { - struct gl_shader *sh = (struct gl_shader *) - _mesa_HashLookup(ctx->Shared->ShaderObjects, name); - if (!sh) { - _mesa_error(ctx, GL_INVALID_VALUE, "%s", caller); - return NULL; - } - if (sh->Type == GL_SHADER_PROGRAM_MESA) { - _mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller); - return NULL; - } - return sh; - } -} - - - -/**********************************************************************/ -/*** Shader Program object functions ***/ -/**********************************************************************/ - - -/** - * Set ptr to point to shProg. - * If ptr is pointing to another object, decrement its refcount (and delete - * if refcount hits zero). - * Then set ptr to point to shProg, incrementing its refcount. - */ -void -_mesa_reference_shader_program(struct gl_context *ctx, - struct gl_shader_program **ptr, - struct gl_shader_program *shProg) -{ - assert(ptr); - if (*ptr == shProg) { - /* no-op */ - return; - } - if (*ptr) { - /* Unreference the old shader program */ - GLboolean deleteFlag = GL_FALSE; - struct gl_shader_program *old = *ptr; - - ASSERT(old->RefCount > 0); - old->RefCount--; -#if 0 - printf("ShaderProgram %p ID=%u RefCount-- to %d\n", - (void *) old, old->Name, old->RefCount); -#endif - deleteFlag = (old->RefCount == 0); - - if (deleteFlag) { - _mesa_HashRemove(ctx->Shared->ShaderObjects, old->Name); - ctx->Driver.DeleteShaderProgram(ctx, old); - } - - *ptr = NULL; - } - assert(!*ptr); - - if (shProg) { - shProg->RefCount++; -#if 0 - printf("ShaderProgram %p ID=%u RefCount++ to %d\n", - (void *) shProg, shProg->Name, shProg->RefCount); -#endif - *ptr = shProg; - } -} - -void -_mesa_init_shader_program(struct gl_context *ctx, struct gl_shader_program *prog) -{ - prog->Type = GL_SHADER_PROGRAM_MESA; - prog->RefCount = 1; - prog->Attributes = _mesa_new_parameter_list(); -#if FEATURE_ARB_geometry_shader4 - prog->Geom.VerticesOut = 0; - prog->Geom.InputType = GL_TRIANGLES; - prog->Geom.OutputType = GL_TRIANGLE_STRIP; -#endif -} - -/** - * Allocate a new gl_shader_program object, initialize it. - * Called via ctx->Driver.NewShaderProgram() - */ -static struct gl_shader_program * -_mesa_new_shader_program(struct gl_context *ctx, GLuint name) -{ - struct gl_shader_program *shProg; - shProg = rzalloc(NULL, struct gl_shader_program); - if (shProg) { - shProg->Name = name; - _mesa_init_shader_program(ctx, shProg); - } - return shProg; -} - - -/** - * Clear (free) the shader program state that gets produced by linking. - */ -void -_mesa_clear_shader_program_data(struct gl_context *ctx, - struct gl_shader_program *shProg) -{ - _mesa_reference_vertprog(ctx, &shProg->VertexProgram, NULL); - _mesa_reference_fragprog(ctx, &shProg->FragmentProgram, NULL); - _mesa_reference_geomprog(ctx, &shProg->GeometryProgram, NULL); - - if (shProg->Uniforms) { - _mesa_free_uniform_list(shProg->Uniforms); - shProg->Uniforms = NULL; - } - - if (shProg->Varying) { - _mesa_free_parameter_list(shProg->Varying); - shProg->Varying = NULL; - } -} - - -/** - * Free all the data that hangs off a shader program object, but not the - * object itself. - */ -void -_mesa_free_shader_program_data(struct gl_context *ctx, - struct gl_shader_program *shProg) -{ - GLuint i; - gl_shader_type sh; - - assert(shProg->Type == GL_SHADER_PROGRAM_MESA); - - _mesa_clear_shader_program_data(ctx, shProg); - - if (shProg->Attributes) { - _mesa_free_parameter_list(shProg->Attributes); - shProg->Attributes = NULL; - } - - /* detach shaders */ - for (i = 0; i < shProg->NumShaders; i++) { - _mesa_reference_shader(ctx, &shProg->Shaders[i], NULL); - } - shProg->NumShaders = 0; - - if (shProg->Shaders) { - free(shProg->Shaders); - shProg->Shaders = NULL; - } - - if (shProg->InfoLog) { - ralloc_free(shProg->InfoLog); - shProg->InfoLog = NULL; - } - - /* Transform feedback varying vars */ - for (i = 0; i < shProg->TransformFeedback.NumVarying; i++) { - free(shProg->TransformFeedback.VaryingNames[i]); - } - free(shProg->TransformFeedback.VaryingNames); - shProg->TransformFeedback.VaryingNames = NULL; - shProg->TransformFeedback.NumVarying = 0; - - - for (sh = 0; sh < MESA_SHADER_TYPES; sh++) { - if (shProg->_LinkedShaders[sh] != NULL) { - ctx->Driver.DeleteShader(ctx, shProg->_LinkedShaders[sh]); - shProg->_LinkedShaders[sh] = NULL; - } - } -} - - -/** - * Free/delete a shader program object. - * Called via ctx->Driver.DeleteShaderProgram(). - */ -static void -_mesa_delete_shader_program(struct gl_context *ctx, struct gl_shader_program *shProg) -{ - _mesa_free_shader_program_data(ctx, shProg); - - ralloc_free(shProg); -} - - -/** - * Lookup a GLSL program object. - */ -struct gl_shader_program * -_mesa_lookup_shader_program(struct gl_context *ctx, GLuint name) -{ - struct gl_shader_program *shProg; - if (name) { - shProg = (struct gl_shader_program *) - _mesa_HashLookup(ctx->Shared->ShaderObjects, name); - /* Note that both gl_shader and gl_shader_program objects are kept - * in the same hash table. Check the object's type to be sure it's - * what we're expecting. - */ - if (shProg && shProg->Type != GL_SHADER_PROGRAM_MESA) { - return NULL; - } - return shProg; - } - return NULL; -} - - -/** - * As above, but record an error if program is not found. - */ -struct gl_shader_program * -_mesa_lookup_shader_program_err(struct gl_context *ctx, GLuint name, - const char *caller) -{ - if (!name) { - _mesa_error(ctx, GL_INVALID_VALUE, "%s", caller); - return NULL; - } - else { - struct gl_shader_program *shProg = (struct gl_shader_program *) - _mesa_HashLookup(ctx->Shared->ShaderObjects, name); - if (!shProg) { - _mesa_error(ctx, GL_INVALID_VALUE, "%s", caller); - return NULL; - } - if (shProg->Type != GL_SHADER_PROGRAM_MESA) { - _mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller); - return NULL; - } - return shProg; - } -} - - -void -_mesa_init_shader_object_functions(struct dd_function_table *driver) -{ - driver->NewShader = _mesa_new_shader; - driver->DeleteShader = _mesa_delete_shader; - driver->NewShaderProgram = _mesa_new_shader_program; - driver->DeleteShaderProgram = _mesa_delete_shader_program; - driver->CompileShader = _mesa_ir_compile_shader; - driver->LinkShader = _mesa_ir_link_shader; -} +/* + * Mesa 3-D graphics library + * + * Copyright (C) 2004-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009-2010 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file shaderobj.c + * \author Brian Paul + * + */ + + +#include "main/glheader.h" +#include "main/context.h" +#include "main/hash.h" +#include "main/mfeatures.h" +#include "main/mtypes.h" +#include "main/shaderobj.h" +#include "program/program.h" +#include "program/prog_parameter.h" +#include "program/prog_uniform.h" +#include "ralloc.h" + +/**********************************************************************/ +/*** Shader object functions ***/ +/**********************************************************************/ + + +/** + * Set ptr to point to sh. + * If ptr is pointing to another shader, decrement its refcount (and delete + * if refcount hits zero). + * Then set ptr to point to sh, incrementing its refcount. + */ +void +_mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr, + struct gl_shader *sh) +{ + assert(ptr); + if (*ptr == sh) { + /* no-op */ + return; + } + if (*ptr) { + /* Unreference the old shader */ + GLboolean deleteFlag = GL_FALSE; + struct gl_shader *old = *ptr; + + ASSERT(old->RefCount > 0); + old->RefCount--; + /*printf("SHADER DECR %p (%d) to %d\n", + (void*) old, old->Name, old->RefCount);*/ + deleteFlag = (old->RefCount == 0); + + if (deleteFlag) { + if (old->Name != 0) + _mesa_HashRemove(ctx->Shared->ShaderObjects, old->Name); + ctx->Driver.DeleteShader(ctx, old); + } + + *ptr = NULL; + } + assert(!*ptr); + + if (sh) { + /* reference new */ + sh->RefCount++; + /*printf("SHADER INCR %p (%d) to %d\n", + (void*) sh, sh->Name, sh->RefCount);*/ + *ptr = sh; + } +} + +void +_mesa_init_shader(struct gl_context *ctx, struct gl_shader *shader) +{ + shader->RefCount = 1; +} + +/** + * Allocate a new gl_shader object, initialize it. + * Called via ctx->Driver.NewShader() + */ +struct gl_shader * +_mesa_new_shader(struct gl_context *ctx, GLuint name, GLenum type) +{ + struct gl_shader *shader; + assert(type == GL_FRAGMENT_SHADER || type == GL_VERTEX_SHADER || + type == GL_GEOMETRY_SHADER_ARB); + shader = rzalloc(NULL, struct gl_shader); + if (shader) { + shader->Type = type; + shader->Name = name; + _mesa_init_shader(ctx, shader); + } + return shader; +} + + +/** + * Delete a shader object. + * Called via ctx->Driver.DeleteShader(). + */ +static void +_mesa_delete_shader(struct gl_context *ctx, struct gl_shader *sh) +{ + if (sh->Source) + free((void *) sh->Source); + _mesa_reference_program(ctx, &sh->Program, NULL); + ralloc_free(sh); +} + + +/** + * Lookup a GLSL shader object. + */ +struct gl_shader * +_mesa_lookup_shader(struct gl_context *ctx, GLuint name) +{ + if (name) { + struct gl_shader *sh = (struct gl_shader *) + _mesa_HashLookup(ctx->Shared->ShaderObjects, name); + /* Note that both gl_shader and gl_shader_program objects are kept + * in the same hash table. Check the object's type to be sure it's + * what we're expecting. + */ + if (sh && sh->Type == GL_SHADER_PROGRAM_MESA) { + return NULL; + } + return sh; + } + return NULL; +} + + +/** + * As above, but record an error if shader is not found. + */ +struct gl_shader * +_mesa_lookup_shader_err(struct gl_context *ctx, GLuint name, const char *caller) +{ + if (!name) { + _mesa_error(ctx, GL_INVALID_VALUE, "%s", caller); + return NULL; + } + else { + struct gl_shader *sh = (struct gl_shader *) + _mesa_HashLookup(ctx->Shared->ShaderObjects, name); + if (!sh) { + _mesa_error(ctx, GL_INVALID_VALUE, "%s", caller); + return NULL; + } + if (sh->Type == GL_SHADER_PROGRAM_MESA) { + _mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller); + return NULL; + } + return sh; + } +} + + + +/**********************************************************************/ +/*** Shader Program object functions ***/ +/**********************************************************************/ + + +/** + * Set ptr to point to shProg. + * If ptr is pointing to another object, decrement its refcount (and delete + * if refcount hits zero). + * Then set ptr to point to shProg, incrementing its refcount. + */ +void +_mesa_reference_shader_program(struct gl_context *ctx, + struct gl_shader_program **ptr, + struct gl_shader_program *shProg) +{ + assert(ptr); + if (*ptr == shProg) { + /* no-op */ + return; + } + if (*ptr) { + /* Unreference the old shader program */ + GLboolean deleteFlag = GL_FALSE; + struct gl_shader_program *old = *ptr; + + ASSERT(old->RefCount > 0); + old->RefCount--; +#if 0 + printf("ShaderProgram %p ID=%u RefCount-- to %d\n", + (void *) old, old->Name, old->RefCount); +#endif + deleteFlag = (old->RefCount == 0); + + if (deleteFlag) { + if (old->Name != 0) + _mesa_HashRemove(ctx->Shared->ShaderObjects, old->Name); + ctx->Driver.DeleteShaderProgram(ctx, old); + } + + *ptr = NULL; + } + assert(!*ptr); + + if (shProg) { + shProg->RefCount++; +#if 0 + printf("ShaderProgram %p ID=%u RefCount++ to %d\n", + (void *) shProg, shProg->Name, shProg->RefCount); +#endif + *ptr = shProg; + } +} + +void +_mesa_init_shader_program(struct gl_context *ctx, struct gl_shader_program *prog) +{ + prog->Type = GL_SHADER_PROGRAM_MESA; + prog->RefCount = 1; + prog->Attributes = _mesa_new_parameter_list(); +#if FEATURE_ARB_geometry_shader4 + prog->Geom.VerticesOut = 0; + prog->Geom.InputType = GL_TRIANGLES; + prog->Geom.OutputType = GL_TRIANGLE_STRIP; +#endif +} + +/** + * Allocate a new gl_shader_program object, initialize it. + * Called via ctx->Driver.NewShaderProgram() + */ +static struct gl_shader_program * +_mesa_new_shader_program(struct gl_context *ctx, GLuint name) +{ + struct gl_shader_program *shProg; + shProg = rzalloc(NULL, struct gl_shader_program); + if (shProg) { + shProg->Name = name; + _mesa_init_shader_program(ctx, shProg); + } + return shProg; +} + + +/** + * Clear (free) the shader program state that gets produced by linking. + */ +void +_mesa_clear_shader_program_data(struct gl_context *ctx, + struct gl_shader_program *shProg) +{ + _mesa_reference_vertprog(ctx, &shProg->VertexProgram, NULL); + _mesa_reference_fragprog(ctx, &shProg->FragmentProgram, NULL); + _mesa_reference_geomprog(ctx, &shProg->GeometryProgram, NULL); + + if (shProg->Uniforms) { + _mesa_free_uniform_list(shProg->Uniforms); + shProg->Uniforms = NULL; + } + + if (shProg->Varying) { + _mesa_free_parameter_list(shProg->Varying); + shProg->Varying = NULL; + } +} + + +/** + * Free all the data that hangs off a shader program object, but not the + * object itself. + */ +void +_mesa_free_shader_program_data(struct gl_context *ctx, + struct gl_shader_program *shProg) +{ + GLuint i; + gl_shader_type sh; + + assert(shProg->Type == GL_SHADER_PROGRAM_MESA); + + _mesa_clear_shader_program_data(ctx, shProg); + + if (shProg->Attributes) { + _mesa_free_parameter_list(shProg->Attributes); + shProg->Attributes = NULL; + } + + /* detach shaders */ + for (i = 0; i < shProg->NumShaders; i++) { + _mesa_reference_shader(ctx, &shProg->Shaders[i], NULL); + } + shProg->NumShaders = 0; + + if (shProg->Shaders) { + free(shProg->Shaders); + shProg->Shaders = NULL; + } + + if (shProg->InfoLog) { + ralloc_free(shProg->InfoLog); + shProg->InfoLog = NULL; + } + + /* Transform feedback varying vars */ + for (i = 0; i < shProg->TransformFeedback.NumVarying; i++) { + free(shProg->TransformFeedback.VaryingNames[i]); + } + free(shProg->TransformFeedback.VaryingNames); + shProg->TransformFeedback.VaryingNames = NULL; + shProg->TransformFeedback.NumVarying = 0; + + + for (sh = 0; sh < MESA_SHADER_TYPES; sh++) { + if (shProg->_LinkedShaders[sh] != NULL) { + ctx->Driver.DeleteShader(ctx, shProg->_LinkedShaders[sh]); + shProg->_LinkedShaders[sh] = NULL; + } + } +} + + +/** + * Free/delete a shader program object. + * Called via ctx->Driver.DeleteShaderProgram(). + */ +static void +_mesa_delete_shader_program(struct gl_context *ctx, struct gl_shader_program *shProg) +{ + _mesa_free_shader_program_data(ctx, shProg); + + ralloc_free(shProg); +} + + +/** + * Lookup a GLSL program object. + */ +struct gl_shader_program * +_mesa_lookup_shader_program(struct gl_context *ctx, GLuint name) +{ + struct gl_shader_program *shProg; + if (name) { + shProg = (struct gl_shader_program *) + _mesa_HashLookup(ctx->Shared->ShaderObjects, name); + /* Note that both gl_shader and gl_shader_program objects are kept + * in the same hash table. Check the object's type to be sure it's + * what we're expecting. + */ + if (shProg && shProg->Type != GL_SHADER_PROGRAM_MESA) { + return NULL; + } + return shProg; + } + return NULL; +} + + +/** + * As above, but record an error if program is not found. + */ +struct gl_shader_program * +_mesa_lookup_shader_program_err(struct gl_context *ctx, GLuint name, + const char *caller) +{ + if (!name) { + _mesa_error(ctx, GL_INVALID_VALUE, "%s", caller); + return NULL; + } + else { + struct gl_shader_program *shProg = (struct gl_shader_program *) + _mesa_HashLookup(ctx->Shared->ShaderObjects, name); + if (!shProg) { + _mesa_error(ctx, GL_INVALID_VALUE, "%s", caller); + return NULL; + } + if (shProg->Type != GL_SHADER_PROGRAM_MESA) { + _mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller); + return NULL; + } + return shProg; + } +} + + +void +_mesa_init_shader_object_functions(struct dd_function_table *driver) +{ + driver->NewShader = _mesa_new_shader; + driver->DeleteShader = _mesa_delete_shader; + driver->NewShaderProgram = _mesa_new_shader_program; + driver->DeleteShaderProgram = _mesa_delete_shader_program; + driver->CompileShader = _mesa_ir_compile_shader; + driver->LinkShader = _mesa_ir_link_shader; +} diff --git a/mesalib/src/mesa/main/state.c b/mesalib/src/mesa/main/state.c index 502c42929..5651e3263 100644 --- a/mesalib/src/mesa/main/state.c +++ b/mesalib/src/mesa/main/state.c @@ -1,734 +1,743 @@ -/* - * Mesa 3-D graphics library - * Version: 7.3 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file state.c - * State management. - * - * This file manages recalculation of derived values in struct gl_context. - */ - - -#include "glheader.h" -#include "mtypes.h" -#include "context.h" -#include "debug.h" -#include "macros.h" -#include "ffvertex_prog.h" -#include "framebuffer.h" -#include "light.h" -#include "matrix.h" -#include "pixel.h" -#include "program/program.h" -#include "program/prog_parameter.h" -#include "state.h" -#include "stencil.h" -#include "texenvprogram.h" -#include "texobj.h" -#include "texstate.h" - - -static void -update_separate_specular(struct gl_context *ctx) -{ - if (NEED_SECONDARY_COLOR(ctx)) - ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR; - else - ctx->_TriangleCaps &= ~DD_SEPARATE_SPECULAR; -} - - -/** - * Compute the index of the last array element that can be safely accessed - * in a vertex array. We can really only do this when the array lives in - * a VBO. - * The array->_MaxElement field will be updated. - * Later in glDrawArrays/Elements/etc we can do some bounds checking. - */ -static void -compute_max_element(struct gl_client_array *array) -{ - assert(array->Enabled); - if (array->BufferObj->Name) { - GLsizeiptrARB offset = (GLsizeiptrARB) array->Ptr; - GLsizeiptrARB obj_size = (GLsizeiptrARB) array->BufferObj->Size; - - if (offset < obj_size) { - array->_MaxElement = (obj_size - offset + - array->StrideB - - array->_ElementSize) / array->StrideB; - } else { - array->_MaxElement = 0; - } - } - else { - /* user-space array, no idea how big it is */ - array->_MaxElement = 2 * 1000 * 1000 * 1000; /* just a big number */ - } -} - - -/** - * Helper for update_arrays(). - * \return min(current min, array->_MaxElement). - */ -static GLuint -update_min(GLuint min, struct gl_client_array *array) -{ - compute_max_element(array); - return MIN2(min, array->_MaxElement); -} - - -/** - * Update ctx->Array._MaxElement (the max legal index into all enabled arrays). - * Need to do this upon new array state or new buffer object state. - */ -static void -update_arrays( struct gl_context *ctx ) -{ - struct gl_array_object *arrayObj = ctx->Array.ArrayObj; - GLuint i, min = ~0; - - /* find min of _MaxElement values for all enabled arrays */ - - /* 0 */ - if (ctx->VertexProgram._Current - && arrayObj->VertexAttrib[VERT_ATTRIB_POS].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_POS]); - } - else if (arrayObj->Vertex.Enabled) { - min = update_min(min, &arrayObj->Vertex); - } - - /* 1 */ - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT]); - } - /* no conventional vertex weight array */ - - /* 2 */ - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL]); - } - else if (arrayObj->Normal.Enabled) { - min = update_min(min, &arrayObj->Normal); - } - - /* 3 */ - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0]); - } - else if (arrayObj->Color.Enabled) { - min = update_min(min, &arrayObj->Color); - } - - /* 4 */ - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1]); - } - else if (arrayObj->SecondaryColor.Enabled) { - min = update_min(min, &arrayObj->SecondaryColor); - } - - /* 5 */ - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[VERT_ATTRIB_FOG].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_FOG]); - } - else if (arrayObj->FogCoord.Enabled) { - min = update_min(min, &arrayObj->FogCoord); - } - - /* 6 */ - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX]); - } - else if (arrayObj->Index.Enabled) { - min = update_min(min, &arrayObj->Index); - } - - /* 7 */ - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG]); - } - - /* 8..15 */ - for (i = VERT_ATTRIB_TEX0; i <= VERT_ATTRIB_TEX7; i++) { - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[i].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[i]); - } - else if (i - VERT_ATTRIB_TEX0 < ctx->Const.MaxTextureCoordUnits - && arrayObj->TexCoord[i - VERT_ATTRIB_TEX0].Enabled) { - min = update_min(min, &arrayObj->TexCoord[i - VERT_ATTRIB_TEX0]); - } - } - - /* 16..31 */ - if (ctx->VertexProgram._Current) { - for (i = 0; i < Elements(arrayObj->VertexAttrib); i++) { - if (arrayObj->VertexAttrib[i].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[i]); - } - } - } - - if (arrayObj->EdgeFlag.Enabled) { - min = update_min(min, &arrayObj->EdgeFlag); - } - - /* _MaxElement is one past the last legal array element */ - arrayObj->_MaxElement = min; -} - - -/** - * Update the following fields: - * ctx->VertexProgram._Enabled - * ctx->FragmentProgram._Enabled - * ctx->ATIFragmentShader._Enabled - * This needs to be done before texture state validation. - */ -static void -update_program_enables(struct gl_context *ctx) -{ - /* These _Enabled flags indicate if the program is enabled AND valid. */ - ctx->VertexProgram._Enabled = ctx->VertexProgram.Enabled - && ctx->VertexProgram.Current->Base.Instructions; - ctx->FragmentProgram._Enabled = ctx->FragmentProgram.Enabled - && ctx->FragmentProgram.Current->Base.Instructions; - ctx->ATIFragmentShader._Enabled = ctx->ATIFragmentShader.Enabled - && ctx->ATIFragmentShader.Current->Instructions[0]; -} - - -/** - * Update vertex/fragment program state. In particular, update these fields: - * ctx->VertexProgram._Current - * ctx->VertexProgram._TnlProgram, - * These point to the highest priority enabled vertex/fragment program or are - * NULL if fixed-function processing is to be done. - * - * This function needs to be called after texture state validation in case - * we're generating a fragment program from fixed-function texture state. - * - * \return bitfield which will indicate _NEW_PROGRAM state if a new vertex - * or fragment program is being used. - */ -static GLbitfield -update_program(struct gl_context *ctx) -{ - const struct gl_shader_program *vsProg = ctx->Shader.CurrentVertexProgram; - const struct gl_shader_program *gsProg = ctx->Shader.CurrentGeometryProgram; - const struct gl_shader_program *fsProg = ctx->Shader.CurrentFragmentProgram; - const struct gl_vertex_program *prevVP = ctx->VertexProgram._Current; - const struct gl_fragment_program *prevFP = ctx->FragmentProgram._Current; - const struct gl_geometry_program *prevGP = ctx->GeometryProgram._Current; - GLbitfield new_state = 0x0; - - /* - * Set the ctx->VertexProgram._Current and ctx->FragmentProgram._Current - * pointers to the programs that should be used for rendering. If either - * is NULL, use fixed-function code paths. - * - * These programs may come from several sources. The priority is as - * follows: - * 1. OpenGL 2.0/ARB vertex/fragment shaders - * 2. ARB/NV vertex/fragment programs - * 3. Programs derived from fixed-function state. - * - * Note: it's possible for a vertex shader to get used with a fragment - * program (and vice versa) here, but in practice that shouldn't ever - * come up, or matter. - */ - - if (fsProg && fsProg->LinkStatus && fsProg->FragmentProgram) { - /* Use shader programs */ - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, - fsProg->FragmentProgram); - } - else if (ctx->FragmentProgram._Enabled) { - /* use user-defined vertex program */ - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, - ctx->FragmentProgram.Current); - } - else if (ctx->FragmentProgram._MaintainTexEnvProgram) { - /* Use fragment program generated from fixed-function state. - */ - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, - _mesa_get_fixed_func_fragment_program(ctx)); - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram, - ctx->FragmentProgram._Current); - } - else { - /* no fragment program */ - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL); - } - - if (gsProg && gsProg->LinkStatus && gsProg->GeometryProgram) { - /* Use shader programs */ - _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current, - gsProg->GeometryProgram); - } else { - /* no fragment program */ - _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current, NULL); - } - - /* Examine vertex program after fragment program as - * _mesa_get_fixed_func_vertex_program() needs to know active - * fragprog inputs. - */ - if (vsProg && vsProg->LinkStatus && vsProg->VertexProgram) { - /* Use shader programs */ - _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, - vsProg->VertexProgram); - } - else if (ctx->VertexProgram._Enabled) { - /* use user-defined vertex program */ - _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, - ctx->VertexProgram.Current); - } - else if (ctx->VertexProgram._MaintainTnlProgram) { - /* Use vertex program generated from fixed-function state. - */ - _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, - _mesa_get_fixed_func_vertex_program(ctx)); - _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram, - ctx->VertexProgram._Current); - } - else { - /* no vertex program */ - _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL); - } - - /* Let the driver know what's happening: - */ - if (ctx->FragmentProgram._Current != prevFP) { - new_state |= _NEW_PROGRAM; - if (ctx->Driver.BindProgram) { - ctx->Driver.BindProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, - (struct gl_program *) ctx->FragmentProgram._Current); - } - } - - if (ctx->GeometryProgram._Current != prevGP) { - new_state |= _NEW_PROGRAM; - if (ctx->Driver.BindProgram) { - ctx->Driver.BindProgram(ctx, MESA_GEOMETRY_PROGRAM, - (struct gl_program *) ctx->GeometryProgram._Current); - } - } - - if (ctx->VertexProgram._Current != prevVP) { - new_state |= _NEW_PROGRAM; - if (ctx->Driver.BindProgram) { - ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB, - (struct gl_program *) ctx->VertexProgram._Current); - } - } - - return new_state; -} - - -/** - * Examine shader constants and return either _NEW_PROGRAM_CONSTANTS or 0. - */ -static GLbitfield -update_program_constants(struct gl_context *ctx) -{ - GLbitfield new_state = 0x0; - - if (ctx->FragmentProgram._Current) { - const struct gl_program_parameter_list *params = - ctx->FragmentProgram._Current->Base.Parameters; - if (params && params->StateFlags & ctx->NewState) { - new_state |= _NEW_PROGRAM_CONSTANTS; - } - } - - if (ctx->GeometryProgram._Current) { - const struct gl_program_parameter_list *params = - ctx->GeometryProgram._Current->Base.Parameters; - /*FIXME: StateFlags is always 0 because we have unnamed constant - * not state changes */ - if (params /*&& params->StateFlags & ctx->NewState*/) { - new_state |= _NEW_PROGRAM_CONSTANTS; - } - } - - if (ctx->VertexProgram._Current) { - const struct gl_program_parameter_list *params = - ctx->VertexProgram._Current->Base.Parameters; - if (params && params->StateFlags & ctx->NewState) { - new_state |= _NEW_PROGRAM_CONSTANTS; - } - } - - return new_state; -} - - - - -static void -update_viewport_matrix(struct gl_context *ctx) -{ - const GLfloat depthMax = ctx->DrawBuffer->_DepthMaxF; - - ASSERT(depthMax > 0); - - /* Compute scale and bias values. This is really driver-specific - * and should be maintained elsewhere if at all. - * NOTE: RasterPos uses this. - */ - _math_matrix_viewport(&ctx->Viewport._WindowMap, - ctx->Viewport.X, ctx->Viewport.Y, - ctx->Viewport.Width, ctx->Viewport.Height, - ctx->Viewport.Near, ctx->Viewport.Far, - depthMax); -} - - -/** - * Update derived multisample state. - */ -static void -update_multisample(struct gl_context *ctx) -{ - ctx->Multisample._Enabled = GL_FALSE; - if (ctx->Multisample.Enabled && - ctx->DrawBuffer && - ctx->DrawBuffer->Visual.sampleBuffers) - ctx->Multisample._Enabled = GL_TRUE; -} - - -/** - * Update derived color/blend/logicop state. - */ -static void -update_color(struct gl_context *ctx) -{ - /* This is needed to support 1.1's RGB logic ops AND - * 1.0's blending logicops. - */ - ctx->Color._LogicOpEnabled = RGBA_LOGICOP_ENABLED(ctx); -} - - -/* - * Check polygon state and set DD_TRI_CULL_FRONT_BACK and/or DD_TRI_OFFSET - * in ctx->_TriangleCaps if needed. - */ -static void -update_polygon(struct gl_context *ctx) -{ - ctx->_TriangleCaps &= ~(DD_TRI_CULL_FRONT_BACK | DD_TRI_OFFSET); - - if (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK) - ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK; - - if ( ctx->Polygon.OffsetPoint - || ctx->Polygon.OffsetLine - || ctx->Polygon.OffsetFill) - ctx->_TriangleCaps |= DD_TRI_OFFSET; -} - - -/** - * Update the ctx->_TriangleCaps bitfield. - * XXX that bitfield should really go away someday! - * This function must be called after other update_*() functions since - * there are dependencies on some other derived values. - */ -#if 0 -static void -update_tricaps(struct gl_context *ctx, GLbitfield new_state) -{ - ctx->_TriangleCaps = 0; - - /* - * Points - */ - if (1/*new_state & _NEW_POINT*/) { - if (ctx->Point.SmoothFlag) - ctx->_TriangleCaps |= DD_POINT_SMOOTH; - if (ctx->Point._Attenuated) - ctx->_TriangleCaps |= DD_POINT_ATTEN; - } - - /* - * Lines - */ - if (1/*new_state & _NEW_LINE*/) { - if (ctx->Line.SmoothFlag) - ctx->_TriangleCaps |= DD_LINE_SMOOTH; - if (ctx->Line.StippleFlag) - ctx->_TriangleCaps |= DD_LINE_STIPPLE; - } - - /* - * Polygons - */ - if (1/*new_state & _NEW_POLYGON*/) { - if (ctx->Polygon.SmoothFlag) - ctx->_TriangleCaps |= DD_TRI_SMOOTH; - if (ctx->Polygon.StippleFlag) - ctx->_TriangleCaps |= DD_TRI_STIPPLE; - if (ctx->Polygon.FrontMode != GL_FILL - || ctx->Polygon.BackMode != GL_FILL) - ctx->_TriangleCaps |= DD_TRI_UNFILLED; - if (ctx->Polygon.CullFlag - && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK) - ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK; - if (ctx->Polygon.OffsetPoint || - ctx->Polygon.OffsetLine || - ctx->Polygon.OffsetFill) - ctx->_TriangleCaps |= DD_TRI_OFFSET; - } - - /* - * Lighting and shading - */ - if (ctx->Light.Enabled && ctx->Light.Model.TwoSide) - ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE; - if (ctx->Light.ShadeModel == GL_FLAT) - ctx->_TriangleCaps |= DD_FLATSHADE; - if (NEED_SECONDARY_COLOR(ctx)) - ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR; - - /* - * Stencil - */ - if (ctx->Stencil._TestTwoSide) - ctx->_TriangleCaps |= DD_TRI_TWOSTENCIL; -} -#endif - - -/** - * Compute derived GL state. - * If __struct gl_contextRec::NewState is non-zero then this function \b must - * be called before rendering anything. - * - * Calls dd_function_table::UpdateState to perform any internal state - * management necessary. - * - * \sa _mesa_update_modelview_project(), _mesa_update_texture(), - * _mesa_update_buffer_bounds(), - * _mesa_update_lighting() and _mesa_update_tnl_spaces(). - */ -void -_mesa_update_state_locked( struct gl_context *ctx ) -{ - GLbitfield new_state = ctx->NewState; - GLbitfield prog_flags = _NEW_PROGRAM; - GLbitfield new_prog_state = 0x0; - - if (new_state == _NEW_CURRENT_ATTRIB) - goto out; - - if (MESA_VERBOSE & VERBOSE_STATE) - _mesa_print_state("_mesa_update_state", new_state); - - /* Determine which state flags effect vertex/fragment program state */ - if (ctx->FragmentProgram._MaintainTexEnvProgram) { - prog_flags |= (_NEW_BUFFERS | _NEW_TEXTURE | _NEW_FOG | - _NEW_ARRAY | _NEW_LIGHT | _NEW_POINT | _NEW_RENDERMODE | - _NEW_PROGRAM); - } - if (ctx->VertexProgram._MaintainTnlProgram) { - prog_flags |= (_NEW_ARRAY | _NEW_TEXTURE | _NEW_TEXTURE_MATRIX | - _NEW_TRANSFORM | _NEW_POINT | - _NEW_FOG | _NEW_LIGHT | - _MESA_NEW_NEED_EYE_COORDS); - } - - /* - * Now update derived state info - */ - - if (new_state & prog_flags) - update_program_enables( ctx ); - - if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION)) - _mesa_update_modelview_project( ctx, new_state ); - - if (new_state & (_NEW_PROGRAM|_NEW_TEXTURE|_NEW_TEXTURE_MATRIX)) - _mesa_update_texture( ctx, new_state ); - - if (new_state & _NEW_BUFFERS) - _mesa_update_framebuffer(ctx); - - if (new_state & (_NEW_SCISSOR | _NEW_BUFFERS | _NEW_VIEWPORT)) - _mesa_update_draw_buffer_bounds( ctx ); - - if (new_state & _NEW_POLYGON) - update_polygon( ctx ); - - if (new_state & _NEW_LIGHT) - _mesa_update_lighting( ctx ); - - if (new_state & (_NEW_STENCIL | _NEW_BUFFERS)) - _mesa_update_stencil( ctx ); - - if (new_state & _MESA_NEW_TRANSFER_STATE) - _mesa_update_pixel( ctx, new_state ); - - if (new_state & _DD_NEW_SEPARATE_SPECULAR) - update_separate_specular( ctx ); - - if (new_state & (_NEW_BUFFERS | _NEW_VIEWPORT)) - update_viewport_matrix(ctx); - - if (new_state & _NEW_MULTISAMPLE) - update_multisample( ctx ); - - if (new_state & _NEW_COLOR) - update_color( ctx ); - -#if 0 - if (new_state & (_NEW_POINT | _NEW_LINE | _NEW_POLYGON | _NEW_LIGHT - | _NEW_STENCIL | _DD_NEW_SEPARATE_SPECULAR)) - update_tricaps( ctx, new_state ); -#endif - - /* ctx->_NeedEyeCoords is now up to date. - * - * If the truth value of this variable has changed, update for the - * new lighting space and recompute the positions of lights and the - * normal transform. - * - * If the lighting space hasn't changed, may still need to recompute - * light positions & normal transforms for other reasons. - */ - if (new_state & _MESA_NEW_NEED_EYE_COORDS) - _mesa_update_tnl_spaces( ctx, new_state ); - - if (new_state & prog_flags) { - /* When we generate programs from fixed-function vertex/fragment state - * this call may generate/bind a new program. If so, we need to - * propogate the _NEW_PROGRAM flag to the driver. - */ - new_prog_state |= update_program( ctx ); - } - - if (new_state & (_NEW_ARRAY | _NEW_PROGRAM | _NEW_BUFFER_OBJECT)) - update_arrays( ctx ); - - out: - new_prog_state |= update_program_constants(ctx); - - /* - * Give the driver a chance to act upon the new_state flags. - * The driver might plug in different span functions, for example. - * Also, this is where the driver can invalidate the state of any - * active modules (such as swrast_setup, swrast, tnl, etc). - * - * Set ctx->NewState to zero to avoid recursion if - * Driver.UpdateState() has to call FLUSH_VERTICES(). (fixed?) - */ - new_state = ctx->NewState | new_prog_state; - ctx->NewState = 0; - ctx->Driver.UpdateState(ctx, new_state); - ctx->Array.NewState = 0; - if (!ctx->Array.RebindArrays) - ctx->Array.RebindArrays = (new_state & (_NEW_ARRAY | _NEW_PROGRAM)) != 0; -} - - -/* This is the usual entrypoint for state updates: - */ -void -_mesa_update_state( struct gl_context *ctx ) -{ - _mesa_lock_context_textures(ctx); - _mesa_update_state_locked(ctx); - _mesa_unlock_context_textures(ctx); -} - - - - -/** - * Want to figure out which fragment program inputs are actually - * constant/current values from ctx->Current. These should be - * referenced as a tracked state variable rather than a fragment - * program input, to save the overhead of putting a constant value in - * every submitted vertex, transferring it to hardware, interpolating - * it across the triangle, etc... - * - * When there is a VP bound, just use vp->outputs. But when we're - * generating vp from fixed function state, basically want to - * calculate: - * - * vp_out_2_fp_in( vp_in_2_vp_out( varying_inputs ) | - * potential_vp_outputs ) - * - * Where potential_vp_outputs is calculated by looking at enabled - * texgen, etc. - * - * The generated fragment program should then only declare inputs that - * may vary or otherwise differ from the ctx->Current values. - * Otherwise, the fp should track them as state values instead. - */ -void -_mesa_set_varying_vp_inputs( struct gl_context *ctx, - GLbitfield varying_inputs ) -{ - if (ctx->varying_vp_inputs != varying_inputs) { - ctx->varying_vp_inputs = varying_inputs; - ctx->NewState |= _NEW_ARRAY; - /*printf("%s %x\n", __FUNCTION__, varying_inputs);*/ - } -} - - -/** - * Used by drivers to tell core Mesa that the driver is going to - * install/ use its own vertex program. In particular, this will - * prevent generated fragment programs from using state vars instead - * of ordinary varyings/inputs. - */ -void -_mesa_set_vp_override(struct gl_context *ctx, GLboolean flag) -{ - if (ctx->VertexProgram._Overriden != flag) { - ctx->VertexProgram._Overriden = flag; - - /* Set one of the bits which will trigger fragment program - * regeneration: - */ - ctx->NewState |= _NEW_PROGRAM; - } -} +/* + * Mesa 3-D graphics library + * Version: 7.3 + * + * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +/** + * \file state.c + * State management. + * + * This file manages recalculation of derived values in struct gl_context. + */ + + +#include "glheader.h" +#include "mtypes.h" +#include "context.h" +#include "debug.h" +#include "macros.h" +#include "ffvertex_prog.h" +#include "framebuffer.h" +#include "light.h" +#include "matrix.h" +#include "pixel.h" +#include "program/program.h" +#include "program/prog_parameter.h" +#include "shaderobj.h" +#include "state.h" +#include "stencil.h" +#include "texenvprogram.h" +#include "texobj.h" +#include "texstate.h" + + +static void +update_separate_specular(struct gl_context *ctx) +{ + if (_mesa_need_secondary_color(ctx)) + ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR; + else + ctx->_TriangleCaps &= ~DD_SEPARATE_SPECULAR; +} + + +/** + * Compute the index of the last array element that can be safely accessed + * in a vertex array. We can really only do this when the array lives in + * a VBO. + * The array->_MaxElement field will be updated. + * Later in glDrawArrays/Elements/etc we can do some bounds checking. + */ +static void +compute_max_element(struct gl_client_array *array) +{ + assert(array->Enabled); + if (array->BufferObj->Name) { + GLsizeiptrARB offset = (GLsizeiptrARB) array->Ptr; + GLsizeiptrARB obj_size = (GLsizeiptrARB) array->BufferObj->Size; + + if (offset < obj_size) { + array->_MaxElement = (obj_size - offset + + array->StrideB - + array->_ElementSize) / array->StrideB; + } else { + array->_MaxElement = 0; + } + } + else { + /* user-space array, no idea how big it is */ + array->_MaxElement = 2 * 1000 * 1000 * 1000; /* just a big number */ + } +} + + +/** + * Helper for update_arrays(). + * \return min(current min, array->_MaxElement). + */ +static GLuint +update_min(GLuint min, struct gl_client_array *array) +{ + compute_max_element(array); + return MIN2(min, array->_MaxElement); +} + + +/** + * Update ctx->Array._MaxElement (the max legal index into all enabled arrays). + * Need to do this upon new array state or new buffer object state. + */ +static void +update_arrays( struct gl_context *ctx ) +{ + struct gl_array_object *arrayObj = ctx->Array.ArrayObj; + GLuint i, min = ~0; + + /* find min of _MaxElement values for all enabled arrays */ + + /* 0 */ + if (ctx->VertexProgram._Current + && arrayObj->VertexAttrib[VERT_ATTRIB_POS].Enabled) { + min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_POS]); + } + else if (arrayObj->Vertex.Enabled) { + min = update_min(min, &arrayObj->Vertex); + } + + /* 1 */ + if (ctx->VertexProgram._Enabled + && arrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT].Enabled) { + min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT]); + } + /* no conventional vertex weight array */ + + /* 2 */ + if (ctx->VertexProgram._Enabled + && arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled) { + min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL]); + } + else if (arrayObj->Normal.Enabled) { + min = update_min(min, &arrayObj->Normal); + } + + /* 3 */ + if (ctx->VertexProgram._Enabled + && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled) { + min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0]); + } + else if (arrayObj->Color.Enabled) { + min = update_min(min, &arrayObj->Color); + } + + /* 4 */ + if (ctx->VertexProgram._Enabled + && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled) { + min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1]); + } + else if (arrayObj->SecondaryColor.Enabled) { + min = update_min(min, &arrayObj->SecondaryColor); + } + + /* 5 */ + if (ctx->VertexProgram._Enabled + && arrayObj->VertexAttrib[VERT_ATTRIB_FOG].Enabled) { + min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_FOG]); + } + else if (arrayObj->FogCoord.Enabled) { + min = update_min(min, &arrayObj->FogCoord); + } + + /* 6 */ + if (ctx->VertexProgram._Enabled + && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled) { + min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX]); + } + else if (arrayObj->Index.Enabled) { + min = update_min(min, &arrayObj->Index); + } + + /* 7 */ + if (ctx->VertexProgram._Enabled + && arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled) { + min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG]); + } + + /* 8..15 */ + for (i = VERT_ATTRIB_TEX0; i <= VERT_ATTRIB_TEX7; i++) { + if (ctx->VertexProgram._Enabled + && arrayObj->VertexAttrib[i].Enabled) { + min = update_min(min, &arrayObj->VertexAttrib[i]); + } + else if (i - VERT_ATTRIB_TEX0 < ctx->Const.MaxTextureCoordUnits + && arrayObj->TexCoord[i - VERT_ATTRIB_TEX0].Enabled) { + min = update_min(min, &arrayObj->TexCoord[i - VERT_ATTRIB_TEX0]); + } + } + + /* 16..31 */ + if (ctx->VertexProgram._Current) { + for (i = 0; i < Elements(arrayObj->VertexAttrib); i++) { + if (arrayObj->VertexAttrib[i].Enabled) { + min = update_min(min, &arrayObj->VertexAttrib[i]); + } + } + } + + if (arrayObj->EdgeFlag.Enabled) { + min = update_min(min, &arrayObj->EdgeFlag); + } + + /* _MaxElement is one past the last legal array element */ + arrayObj->_MaxElement = min; +} + + +/** + * Update the following fields: + * ctx->VertexProgram._Enabled + * ctx->FragmentProgram._Enabled + * ctx->ATIFragmentShader._Enabled + * This needs to be done before texture state validation. + */ +static void +update_program_enables(struct gl_context *ctx) +{ + /* These _Enabled flags indicate if the program is enabled AND valid. */ + ctx->VertexProgram._Enabled = ctx->VertexProgram.Enabled + && ctx->VertexProgram.Current->Base.Instructions; + ctx->FragmentProgram._Enabled = ctx->FragmentProgram.Enabled + && ctx->FragmentProgram.Current->Base.Instructions; + ctx->ATIFragmentShader._Enabled = ctx->ATIFragmentShader.Enabled + && ctx->ATIFragmentShader.Current->Instructions[0]; +} + + +/** + * Update vertex/fragment program state. In particular, update these fields: + * ctx->VertexProgram._Current + * ctx->VertexProgram._TnlProgram, + * These point to the highest priority enabled vertex/fragment program or are + * NULL if fixed-function processing is to be done. + * + * This function needs to be called after texture state validation in case + * we're generating a fragment program from fixed-function texture state. + * + * \return bitfield which will indicate _NEW_PROGRAM state if a new vertex + * or fragment program is being used. + */ +static GLbitfield +update_program(struct gl_context *ctx) +{ + const struct gl_shader_program *vsProg = ctx->Shader.CurrentVertexProgram; + const struct gl_shader_program *gsProg = ctx->Shader.CurrentGeometryProgram; + struct gl_shader_program *fsProg = ctx->Shader.CurrentFragmentProgram; + const struct gl_vertex_program *prevVP = ctx->VertexProgram._Current; + const struct gl_fragment_program *prevFP = ctx->FragmentProgram._Current; + const struct gl_geometry_program *prevGP = ctx->GeometryProgram._Current; + GLbitfield new_state = 0x0; + + /* + * Set the ctx->VertexProgram._Current and ctx->FragmentProgram._Current + * pointers to the programs that should be used for rendering. If either + * is NULL, use fixed-function code paths. + * + * These programs may come from several sources. The priority is as + * follows: + * 1. OpenGL 2.0/ARB vertex/fragment shaders + * 2. ARB/NV vertex/fragment programs + * 3. Programs derived from fixed-function state. + * + * Note: it's possible for a vertex shader to get used with a fragment + * program (and vice versa) here, but in practice that shouldn't ever + * come up, or matter. + */ + + if (fsProg && fsProg->LinkStatus && fsProg->FragmentProgram) { + /* Use shader programs */ + _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, + fsProg->FragmentProgram); + _mesa_reference_shader_program(ctx, &ctx->Shader._CurrentFragmentProgram, + fsProg); + } + else if (ctx->FragmentProgram._Enabled) { + /* use user-defined fragment program */ + _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, + ctx->FragmentProgram.Current); + _mesa_reference_shader_program(ctx, &ctx->Shader._CurrentFragmentProgram, + NULL); + } + else if (ctx->FragmentProgram._MaintainTexEnvProgram) { + /* Use fragment program generated from fixed-function state. + */ + struct gl_shader_program *f = _mesa_get_fixed_func_fragment_program(ctx); + _mesa_reference_shader_program(ctx, + &ctx->Shader._CurrentFragmentProgram, f); + + _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, + f->FragmentProgram); + } + else { + /* no fragment program */ + _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL); + _mesa_reference_shader_program(ctx, &ctx->Shader._CurrentFragmentProgram, + NULL); + } + + if (gsProg && gsProg->LinkStatus && gsProg->GeometryProgram) { + /* Use shader programs */ + _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current, + gsProg->GeometryProgram); + } else { + /* no fragment program */ + _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current, NULL); + } + + /* Examine vertex program after fragment program as + * _mesa_get_fixed_func_vertex_program() needs to know active + * fragprog inputs. + */ + if (vsProg && vsProg->LinkStatus && vsProg->VertexProgram) { + /* Use shader programs */ + _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, + vsProg->VertexProgram); + } + else if (ctx->VertexProgram._Enabled) { + /* use user-defined vertex program */ + _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, + ctx->VertexProgram.Current); + } + else if (ctx->VertexProgram._MaintainTnlProgram) { + /* Use vertex program generated from fixed-function state. + */ + _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, + _mesa_get_fixed_func_vertex_program(ctx)); + _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram, + ctx->VertexProgram._Current); + } + else { + /* no vertex program */ + _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL); + } + + /* Let the driver know what's happening: + */ + if (ctx->FragmentProgram._Current != prevFP) { + new_state |= _NEW_PROGRAM; + if (ctx->Driver.BindProgram) { + ctx->Driver.BindProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, + (struct gl_program *) ctx->FragmentProgram._Current); + } + } + + if (ctx->GeometryProgram._Current != prevGP) { + new_state |= _NEW_PROGRAM; + if (ctx->Driver.BindProgram) { + ctx->Driver.BindProgram(ctx, MESA_GEOMETRY_PROGRAM, + (struct gl_program *) ctx->GeometryProgram._Current); + } + } + + if (ctx->VertexProgram._Current != prevVP) { + new_state |= _NEW_PROGRAM; + if (ctx->Driver.BindProgram) { + ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB, + (struct gl_program *) ctx->VertexProgram._Current); + } + } + + return new_state; +} + + +/** + * Examine shader constants and return either _NEW_PROGRAM_CONSTANTS or 0. + */ +static GLbitfield +update_program_constants(struct gl_context *ctx) +{ + GLbitfield new_state = 0x0; + + if (ctx->FragmentProgram._Current) { + const struct gl_program_parameter_list *params = + ctx->FragmentProgram._Current->Base.Parameters; + if (params && params->StateFlags & ctx->NewState) { + new_state |= _NEW_PROGRAM_CONSTANTS; + } + } + + if (ctx->GeometryProgram._Current) { + const struct gl_program_parameter_list *params = + ctx->GeometryProgram._Current->Base.Parameters; + /*FIXME: StateFlags is always 0 because we have unnamed constant + * not state changes */ + if (params /*&& params->StateFlags & ctx->NewState*/) { + new_state |= _NEW_PROGRAM_CONSTANTS; + } + } + + if (ctx->VertexProgram._Current) { + const struct gl_program_parameter_list *params = + ctx->VertexProgram._Current->Base.Parameters; + if (params && params->StateFlags & ctx->NewState) { + new_state |= _NEW_PROGRAM_CONSTANTS; + } + } + + return new_state; +} + + + + +static void +update_viewport_matrix(struct gl_context *ctx) +{ + const GLfloat depthMax = ctx->DrawBuffer->_DepthMaxF; + + ASSERT(depthMax > 0); + + /* Compute scale and bias values. This is really driver-specific + * and should be maintained elsewhere if at all. + * NOTE: RasterPos uses this. + */ + _math_matrix_viewport(&ctx->Viewport._WindowMap, + ctx->Viewport.X, ctx->Viewport.Y, + ctx->Viewport.Width, ctx->Viewport.Height, + ctx->Viewport.Near, ctx->Viewport.Far, + depthMax); +} + + +/** + * Update derived multisample state. + */ +static void +update_multisample(struct gl_context *ctx) +{ + ctx->Multisample._Enabled = GL_FALSE; + if (ctx->Multisample.Enabled && + ctx->DrawBuffer && + ctx->DrawBuffer->Visual.sampleBuffers) + ctx->Multisample._Enabled = GL_TRUE; +} + + +/** + * Update derived color/blend/logicop state. + */ +static void +update_color(struct gl_context *ctx) +{ + /* This is needed to support 1.1's RGB logic ops AND + * 1.0's blending logicops. + */ + ctx->Color._LogicOpEnabled = _mesa_rgba_logicop_enabled(ctx); +} + + +/* + * Check polygon state and set DD_TRI_CULL_FRONT_BACK and/or DD_TRI_OFFSET + * in ctx->_TriangleCaps if needed. + */ +static void +update_polygon(struct gl_context *ctx) +{ + ctx->_TriangleCaps &= ~(DD_TRI_CULL_FRONT_BACK | DD_TRI_OFFSET); + + if (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK) + ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK; + + if ( ctx->Polygon.OffsetPoint + || ctx->Polygon.OffsetLine + || ctx->Polygon.OffsetFill) + ctx->_TriangleCaps |= DD_TRI_OFFSET; +} + + +/** + * Update the ctx->_TriangleCaps bitfield. + * XXX that bitfield should really go away someday! + * This function must be called after other update_*() functions since + * there are dependencies on some other derived values. + */ +#if 0 +static void +update_tricaps(struct gl_context *ctx, GLbitfield new_state) +{ + ctx->_TriangleCaps = 0; + + /* + * Points + */ + if (1/*new_state & _NEW_POINT*/) { + if (ctx->Point.SmoothFlag) + ctx->_TriangleCaps |= DD_POINT_SMOOTH; + if (ctx->Point._Attenuated) + ctx->_TriangleCaps |= DD_POINT_ATTEN; + } + + /* + * Lines + */ + if (1/*new_state & _NEW_LINE*/) { + if (ctx->Line.SmoothFlag) + ctx->_TriangleCaps |= DD_LINE_SMOOTH; + if (ctx->Line.StippleFlag) + ctx->_TriangleCaps |= DD_LINE_STIPPLE; + } + + /* + * Polygons + */ + if (1/*new_state & _NEW_POLYGON*/) { + if (ctx->Polygon.SmoothFlag) + ctx->_TriangleCaps |= DD_TRI_SMOOTH; + if (ctx->Polygon.StippleFlag) + ctx->_TriangleCaps |= DD_TRI_STIPPLE; + if (ctx->Polygon.FrontMode != GL_FILL + || ctx->Polygon.BackMode != GL_FILL) + ctx->_TriangleCaps |= DD_TRI_UNFILLED; + if (ctx->Polygon.CullFlag + && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK) + ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK; + if (ctx->Polygon.OffsetPoint || + ctx->Polygon.OffsetLine || + ctx->Polygon.OffsetFill) + ctx->_TriangleCaps |= DD_TRI_OFFSET; + } + + /* + * Lighting and shading + */ + if (ctx->Light.Enabled && ctx->Light.Model.TwoSide) + ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE; + if (ctx->Light.ShadeModel == GL_FLAT) + ctx->_TriangleCaps |= DD_FLATSHADE; + if (_mesa_need_secondary_color(ctx)) + ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR; + + /* + * Stencil + */ + if (ctx->Stencil._TestTwoSide) + ctx->_TriangleCaps |= DD_TRI_TWOSTENCIL; +} +#endif + + +/** + * Compute derived GL state. + * If __struct gl_contextRec::NewState is non-zero then this function \b must + * be called before rendering anything. + * + * Calls dd_function_table::UpdateState to perform any internal state + * management necessary. + * + * \sa _mesa_update_modelview_project(), _mesa_update_texture(), + * _mesa_update_buffer_bounds(), + * _mesa_update_lighting() and _mesa_update_tnl_spaces(). + */ +void +_mesa_update_state_locked( struct gl_context *ctx ) +{ + GLbitfield new_state = ctx->NewState; + GLbitfield prog_flags = _NEW_PROGRAM; + GLbitfield new_prog_state = 0x0; + + if (new_state == _NEW_CURRENT_ATTRIB) + goto out; + + if (MESA_VERBOSE & VERBOSE_STATE) + _mesa_print_state("_mesa_update_state", new_state); + + /* Determine which state flags effect vertex/fragment program state */ + if (ctx->FragmentProgram._MaintainTexEnvProgram) { + prog_flags |= (_NEW_BUFFERS | _NEW_TEXTURE | _NEW_FOG | + _NEW_ARRAY | _NEW_LIGHT | _NEW_POINT | _NEW_RENDERMODE | + _NEW_PROGRAM); + } + if (ctx->VertexProgram._MaintainTnlProgram) { + prog_flags |= (_NEW_ARRAY | _NEW_TEXTURE | _NEW_TEXTURE_MATRIX | + _NEW_TRANSFORM | _NEW_POINT | + _NEW_FOG | _NEW_LIGHT | + _MESA_NEW_NEED_EYE_COORDS); + } + + /* + * Now update derived state info + */ + + if (new_state & prog_flags) + update_program_enables( ctx ); + + if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION)) + _mesa_update_modelview_project( ctx, new_state ); + + if (new_state & (_NEW_PROGRAM|_NEW_TEXTURE|_NEW_TEXTURE_MATRIX)) + _mesa_update_texture( ctx, new_state ); + + if (new_state & _NEW_BUFFERS) + _mesa_update_framebuffer(ctx); + + if (new_state & (_NEW_SCISSOR | _NEW_BUFFERS | _NEW_VIEWPORT)) + _mesa_update_draw_buffer_bounds( ctx ); + + if (new_state & _NEW_POLYGON) + update_polygon( ctx ); + + if (new_state & _NEW_LIGHT) + _mesa_update_lighting( ctx ); + + if (new_state & (_NEW_STENCIL | _NEW_BUFFERS)) + _mesa_update_stencil( ctx ); + + if (new_state & _MESA_NEW_TRANSFER_STATE) + _mesa_update_pixel( ctx, new_state ); + + if (new_state & _DD_NEW_SEPARATE_SPECULAR) + update_separate_specular( ctx ); + + if (new_state & (_NEW_BUFFERS | _NEW_VIEWPORT)) + update_viewport_matrix(ctx); + + if (new_state & _NEW_MULTISAMPLE) + update_multisample( ctx ); + + if (new_state & _NEW_COLOR) + update_color( ctx ); + +#if 0 + if (new_state & (_NEW_POINT | _NEW_LINE | _NEW_POLYGON | _NEW_LIGHT + | _NEW_STENCIL | _DD_NEW_SEPARATE_SPECULAR)) + update_tricaps( ctx, new_state ); +#endif + + /* ctx->_NeedEyeCoords is now up to date. + * + * If the truth value of this variable has changed, update for the + * new lighting space and recompute the positions of lights and the + * normal transform. + * + * If the lighting space hasn't changed, may still need to recompute + * light positions & normal transforms for other reasons. + */ + if (new_state & _MESA_NEW_NEED_EYE_COORDS) + _mesa_update_tnl_spaces( ctx, new_state ); + + if (new_state & prog_flags) { + /* When we generate programs from fixed-function vertex/fragment state + * this call may generate/bind a new program. If so, we need to + * propogate the _NEW_PROGRAM flag to the driver. + */ + new_prog_state |= update_program( ctx ); + } + + if (new_state & (_NEW_ARRAY | _NEW_PROGRAM | _NEW_BUFFER_OBJECT)) + update_arrays( ctx ); + + out: + new_prog_state |= update_program_constants(ctx); + + /* + * Give the driver a chance to act upon the new_state flags. + * The driver might plug in different span functions, for example. + * Also, this is where the driver can invalidate the state of any + * active modules (such as swrast_setup, swrast, tnl, etc). + * + * Set ctx->NewState to zero to avoid recursion if + * Driver.UpdateState() has to call FLUSH_VERTICES(). (fixed?) + */ + new_state = ctx->NewState | new_prog_state; + ctx->NewState = 0; + ctx->Driver.UpdateState(ctx, new_state); + ctx->Array.NewState = 0; + if (!ctx->Array.RebindArrays) + ctx->Array.RebindArrays = (new_state & (_NEW_ARRAY | _NEW_PROGRAM)) != 0; +} + + +/* This is the usual entrypoint for state updates: + */ +void +_mesa_update_state( struct gl_context *ctx ) +{ + _mesa_lock_context_textures(ctx); + _mesa_update_state_locked(ctx); + _mesa_unlock_context_textures(ctx); +} + + + + +/** + * Want to figure out which fragment program inputs are actually + * constant/current values from ctx->Current. These should be + * referenced as a tracked state variable rather than a fragment + * program input, to save the overhead of putting a constant value in + * every submitted vertex, transferring it to hardware, interpolating + * it across the triangle, etc... + * + * When there is a VP bound, just use vp->outputs. But when we're + * generating vp from fixed function state, basically want to + * calculate: + * + * vp_out_2_fp_in( vp_in_2_vp_out( varying_inputs ) | + * potential_vp_outputs ) + * + * Where potential_vp_outputs is calculated by looking at enabled + * texgen, etc. + * + * The generated fragment program should then only declare inputs that + * may vary or otherwise differ from the ctx->Current values. + * Otherwise, the fp should track them as state values instead. + */ +void +_mesa_set_varying_vp_inputs( struct gl_context *ctx, + GLbitfield varying_inputs ) +{ + if (ctx->varying_vp_inputs != varying_inputs) { + ctx->varying_vp_inputs = varying_inputs; + ctx->NewState |= _NEW_ARRAY; + /*printf("%s %x\n", __FUNCTION__, varying_inputs);*/ + } +} + + +/** + * Used by drivers to tell core Mesa that the driver is going to + * install/ use its own vertex program. In particular, this will + * prevent generated fragment programs from using state vars instead + * of ordinary varyings/inputs. + */ +void +_mesa_set_vp_override(struct gl_context *ctx, GLboolean flag) +{ + if (ctx->VertexProgram._Overriden != flag) { + ctx->VertexProgram._Overriden = flag; + + /* Set one of the bits which will trigger fragment program + * regeneration: + */ + ctx->NewState |= _NEW_PROGRAM; + } +} diff --git a/mesalib/src/mesa/main/state.h b/mesalib/src/mesa/main/state.h index 6714196dc..31573fe5b 100644 --- a/mesalib/src/mesa/main/state.h +++ b/mesalib/src/mesa/main/state.h @@ -46,4 +46,43 @@ extern void _mesa_set_vp_override(struct gl_context *ctx, GLboolean flag); +/** + * Is the secondary color needed? + */ +static INLINE GLboolean +_mesa_need_secondary_color(const struct gl_context *ctx) +{ + if (ctx->Light.Enabled && + ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR) + return GL_TRUE; + + if (ctx->Fog.ColorSumEnabled) + return GL_TRUE; + + if (ctx->VertexProgram._Current && + (ctx->VertexProgram._Current != ctx->VertexProgram._TnlProgram) && + (ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_COLOR1)) + return GL_TRUE; + + if (ctx->FragmentProgram._Current && + (ctx->FragmentProgram._Current != ctx->FragmentProgram._TexEnvProgram) && + (ctx->FragmentProgram._Current->Base.InputsRead & FRAG_BIT_COL1)) + return GL_TRUE; + + return GL_FALSE; +} + + +/** + * Is RGBA LogicOp enabled? + */ +static INLINE GLboolean +_mesa_rgba_logicop_enabled(const struct gl_context *ctx) +{ + return ctx->Color.ColorLogicOpEnabled || + (ctx->Color.BlendEnabled && ctx->Color.Blend[0].EquationRGB == GL_LOGIC_OP); +} + + + #endif diff --git a/mesalib/src/mesa/main/texenvprogram.c b/mesalib/src/mesa/main/texenvprogram.c deleted file mode 100644 index c30fe9616..000000000 --- a/mesalib/src/mesa/main/texenvprogram.c +++ /dev/null @@ -1,1618 +0,0 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * Copyright 2009 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - -#include "glheader.h" -#include "imports.h" -#include "mtypes.h" -#include "program/program.h" -#include "program/prog_parameter.h" -#include "program/prog_cache.h" -#include "program/prog_instruction.h" -#include "program/prog_print.h" -#include "program/prog_statevars.h" -#include "program/programopt.h" -#include "texenvprogram.h" - - -/* - * Note on texture units: - * - * The number of texture units supported by fixed-function fragment - * processing is MAX_TEXTURE_COORD_UNITS, not MAX_TEXTURE_IMAGE_UNITS. - * That's because there's a one-to-one correspondence between texture - * coordinates and samplers in fixed-function processing. - * - * Since fixed-function vertex processing is limited to MAX_TEXTURE_COORD_UNITS - * sets of texcoords, so is fixed-function fragment processing. - * - * We can safely use ctx->Const.MaxTextureUnits for loop bounds. - */ - - -struct texenvprog_cache_item -{ - GLuint hash; - void *key; - struct gl_fragment_program *data; - struct texenvprog_cache_item *next; -}; - -static GLboolean -texenv_doing_secondary_color(struct gl_context *ctx) -{ - if (ctx->Light.Enabled && - (ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)) - return GL_TRUE; - - if (ctx->Fog.ColorSumEnabled) - return GL_TRUE; - - return GL_FALSE; -} - -/** - * Up to nine instructions per tex unit, plus fog, specular color. - */ -#define MAX_INSTRUCTIONS ((MAX_TEXTURE_COORD_UNITS * 9) + 12) - -#define DISASSEM (MESA_VERBOSE & VERBOSE_DISASSEM) - -struct mode_opt { -#ifdef __GNUC__ - __extension__ GLubyte Source:4; /**< SRC_x */ - __extension__ GLubyte Operand:3; /**< OPR_x */ -#else - GLubyte Source; /**< SRC_x */ - GLubyte Operand; /**< OPR_x */ -#endif -}; - -struct state_key { - GLuint nr_enabled_units:8; - GLuint enabled_units:8; - GLuint separate_specular:1; - GLuint fog_enabled:1; - GLuint fog_mode:2; /**< FOG_x */ - GLuint inputs_available:12; - GLuint num_draw_buffers:4; - - /* NOTE: This array of structs must be last! (see "keySize" below) */ - struct { - GLuint enabled:1; - GLuint source_index:3; /**< TEXTURE_x_INDEX */ - GLuint shadow:1; - GLuint ScaleShiftRGB:2; - GLuint ScaleShiftA:2; - - GLuint NumArgsRGB:3; /**< up to MAX_COMBINER_TERMS */ - GLuint ModeRGB:5; /**< MODE_x */ - - GLuint NumArgsA:3; /**< up to MAX_COMBINER_TERMS */ - GLuint ModeA:5; /**< MODE_x */ - - GLuint texture_cyl_wrap:1; /**< For gallium test/debug only */ - - struct mode_opt OptRGB[MAX_COMBINER_TERMS]; - struct mode_opt OptA[MAX_COMBINER_TERMS]; - } unit[MAX_TEXTURE_UNITS]; -}; - -#define FOG_LINEAR 0 -#define FOG_EXP 1 -#define FOG_EXP2 2 -#define FOG_UNKNOWN 3 - -static GLuint translate_fog_mode( GLenum mode ) -{ - switch (mode) { - case GL_LINEAR: return FOG_LINEAR; - case GL_EXP: return FOG_EXP; - case GL_EXP2: return FOG_EXP2; - default: return FOG_UNKNOWN; - } -} - -#define OPR_SRC_COLOR 0 -#define OPR_ONE_MINUS_SRC_COLOR 1 -#define OPR_SRC_ALPHA 2 -#define OPR_ONE_MINUS_SRC_ALPHA 3 -#define OPR_ZERO 4 -#define OPR_ONE 5 -#define OPR_UNKNOWN 7 - -static GLuint translate_operand( GLenum operand ) -{ - switch (operand) { - case GL_SRC_COLOR: return OPR_SRC_COLOR; - case GL_ONE_MINUS_SRC_COLOR: return OPR_ONE_MINUS_SRC_COLOR; - case GL_SRC_ALPHA: return OPR_SRC_ALPHA; - case GL_ONE_MINUS_SRC_ALPHA: return OPR_ONE_MINUS_SRC_ALPHA; - case GL_ZERO: return OPR_ZERO; - case GL_ONE: return OPR_ONE; - default: - assert(0); - return OPR_UNKNOWN; - } -} - -#define SRC_TEXTURE 0 -#define SRC_TEXTURE0 1 -#define SRC_TEXTURE1 2 -#define SRC_TEXTURE2 3 -#define SRC_TEXTURE3 4 -#define SRC_TEXTURE4 5 -#define SRC_TEXTURE5 6 -#define SRC_TEXTURE6 7 -#define SRC_TEXTURE7 8 -#define SRC_CONSTANT 9 -#define SRC_PRIMARY_COLOR 10 -#define SRC_PREVIOUS 11 -#define SRC_ZERO 12 -#define SRC_UNKNOWN 15 - -static GLuint translate_source( GLenum src ) -{ - switch (src) { - case GL_TEXTURE: return SRC_TEXTURE; - case GL_TEXTURE0: - case GL_TEXTURE1: - case GL_TEXTURE2: - case GL_TEXTURE3: - case GL_TEXTURE4: - case GL_TEXTURE5: - case GL_TEXTURE6: - case GL_TEXTURE7: return SRC_TEXTURE0 + (src - GL_TEXTURE0); - case GL_CONSTANT: return SRC_CONSTANT; - case GL_PRIMARY_COLOR: return SRC_PRIMARY_COLOR; - case GL_PREVIOUS: return SRC_PREVIOUS; - case GL_ZERO: - return SRC_ZERO; - default: - assert(0); - return SRC_UNKNOWN; - } -} - -#define MODE_REPLACE 0 /* r = a0 */ -#define MODE_MODULATE 1 /* r = a0 * a1 */ -#define MODE_ADD 2 /* r = a0 + a1 */ -#define MODE_ADD_SIGNED 3 /* r = a0 + a1 - 0.5 */ -#define MODE_INTERPOLATE 4 /* r = a0 * a2 + a1 * (1 - a2) */ -#define MODE_SUBTRACT 5 /* r = a0 - a1 */ -#define MODE_DOT3_RGB 6 /* r = a0 . a1 */ -#define MODE_DOT3_RGB_EXT 7 /* r = a0 . a1 */ -#define MODE_DOT3_RGBA 8 /* r = a0 . a1 */ -#define MODE_DOT3_RGBA_EXT 9 /* r = a0 . a1 */ -#define MODE_MODULATE_ADD_ATI 10 /* r = a0 * a2 + a1 */ -#define MODE_MODULATE_SIGNED_ADD_ATI 11 /* r = a0 * a2 + a1 - 0.5 */ -#define MODE_MODULATE_SUBTRACT_ATI 12 /* r = a0 * a2 - a1 */ -#define MODE_ADD_PRODUCTS 13 /* r = a0 * a1 + a2 * a3 */ -#define MODE_ADD_PRODUCTS_SIGNED 14 /* r = a0 * a1 + a2 * a3 - 0.5 */ -#define MODE_BUMP_ENVMAP_ATI 15 /* special */ -#define MODE_UNKNOWN 16 - -/** - * Translate GL combiner state into a MODE_x value - */ -static GLuint translate_mode( GLenum envMode, GLenum mode ) -{ - switch (mode) { - case GL_REPLACE: return MODE_REPLACE; - case GL_MODULATE: return MODE_MODULATE; - case GL_ADD: - if (envMode == GL_COMBINE4_NV) - return MODE_ADD_PRODUCTS; - else - return MODE_ADD; - case GL_ADD_SIGNED: - if (envMode == GL_COMBINE4_NV) - return MODE_ADD_PRODUCTS_SIGNED; - else - return MODE_ADD_SIGNED; - case GL_INTERPOLATE: return MODE_INTERPOLATE; - case GL_SUBTRACT: return MODE_SUBTRACT; - case GL_DOT3_RGB: return MODE_DOT3_RGB; - case GL_DOT3_RGB_EXT: return MODE_DOT3_RGB_EXT; - case GL_DOT3_RGBA: return MODE_DOT3_RGBA; - case GL_DOT3_RGBA_EXT: return MODE_DOT3_RGBA_EXT; - case GL_MODULATE_ADD_ATI: return MODE_MODULATE_ADD_ATI; - case GL_MODULATE_SIGNED_ADD_ATI: return MODE_MODULATE_SIGNED_ADD_ATI; - case GL_MODULATE_SUBTRACT_ATI: return MODE_MODULATE_SUBTRACT_ATI; - case GL_BUMP_ENVMAP_ATI: return MODE_BUMP_ENVMAP_ATI; - default: - assert(0); - return MODE_UNKNOWN; - } -} - - -/** - * Do we need to clamp the results of the given texture env/combine mode? - * If the inputs to the mode are in [0,1] we don't always have to clamp - * the results. - */ -static GLboolean -need_saturate( GLuint mode ) -{ - switch (mode) { - case MODE_REPLACE: - case MODE_MODULATE: - case MODE_INTERPOLATE: - return GL_FALSE; - case MODE_ADD: - case MODE_ADD_SIGNED: - case MODE_SUBTRACT: - case MODE_DOT3_RGB: - case MODE_DOT3_RGB_EXT: - case MODE_DOT3_RGBA: - case MODE_DOT3_RGBA_EXT: - case MODE_MODULATE_ADD_ATI: - case MODE_MODULATE_SIGNED_ADD_ATI: - case MODE_MODULATE_SUBTRACT_ATI: - case MODE_ADD_PRODUCTS: - case MODE_ADD_PRODUCTS_SIGNED: - case MODE_BUMP_ENVMAP_ATI: - return GL_TRUE; - default: - assert(0); - return GL_FALSE; - } -} - - - -/** - * Translate TEXTURE_x_BIT to TEXTURE_x_INDEX. - */ -static GLuint translate_tex_src_bit( GLbitfield bit ) -{ - ASSERT(bit); - return _mesa_ffs(bit) - 1; -} - - -#define VERT_BIT_TEX_ANY (0xff << VERT_ATTRIB_TEX0) -#define VERT_RESULT_TEX_ANY (0xff << VERT_RESULT_TEX0) - -/** - * Identify all possible varying inputs. The fragment program will - * never reference non-varying inputs, but will track them via state - * constants instead. - * - * This function figures out all the inputs that the fragment program - * has access to. The bitmask is later reduced to just those which - * are actually referenced. - */ -static GLbitfield get_fp_input_mask( struct gl_context *ctx ) -{ - /* _NEW_PROGRAM */ - const GLboolean vertexShader = - (ctx->Shader.CurrentVertexProgram && - ctx->Shader.CurrentVertexProgram->LinkStatus && - ctx->Shader.CurrentVertexProgram->VertexProgram); - const GLboolean vertexProgram = ctx->VertexProgram._Enabled; - GLbitfield fp_inputs = 0x0; - - if (ctx->VertexProgram._Overriden) { - /* Somebody's messing with the vertex program and we don't have - * a clue what's happening. Assume that it could be producing - * all possible outputs. - */ - fp_inputs = ~0; - } - else if (ctx->RenderMode == GL_FEEDBACK) { - /* _NEW_RENDERMODE */ - fp_inputs = (FRAG_BIT_COL0 | FRAG_BIT_TEX0); - } - else if (!(vertexProgram || vertexShader) || - !ctx->VertexProgram._Current) { - /* Fixed function vertex logic */ - /* _NEW_ARRAY */ - GLbitfield varying_inputs = ctx->varying_vp_inputs; - - /* These get generated in the setup routine regardless of the - * vertex program: - */ - /* _NEW_POINT */ - if (ctx->Point.PointSprite) - varying_inputs |= FRAG_BITS_TEX_ANY; - - /* First look at what values may be computed by the generated - * vertex program: - */ - /* _NEW_LIGHT */ - if (ctx->Light.Enabled) { - fp_inputs |= FRAG_BIT_COL0; - - if (texenv_doing_secondary_color(ctx)) - fp_inputs |= FRAG_BIT_COL1; - } - - /* _NEW_TEXTURE */ - fp_inputs |= (ctx->Texture._TexGenEnabled | - ctx->Texture._TexMatEnabled) << FRAG_ATTRIB_TEX0; - - /* Then look at what might be varying as a result of enabled - * arrays, etc: - */ - if (varying_inputs & VERT_BIT_COLOR0) - fp_inputs |= FRAG_BIT_COL0; - if (varying_inputs & VERT_BIT_COLOR1) - fp_inputs |= FRAG_BIT_COL1; - - fp_inputs |= (((varying_inputs & VERT_BIT_TEX_ANY) >> VERT_ATTRIB_TEX0) - << FRAG_ATTRIB_TEX0); - - } - else { - /* calculate from vp->outputs */ - struct gl_vertex_program *vprog; - GLbitfield64 vp_outputs; - - /* Choose GLSL vertex shader over ARB vertex program. Need this - * since vertex shader state validation comes after fragment state - * validation (see additional comments in state.c). - */ - if (vertexShader) - vprog = ctx->Shader.CurrentVertexProgram->VertexProgram; - else - vprog = ctx->VertexProgram.Current; - - vp_outputs = vprog->Base.OutputsWritten; - - /* These get generated in the setup routine regardless of the - * vertex program: - */ - /* _NEW_POINT */ - if (ctx->Point.PointSprite) - vp_outputs |= FRAG_BITS_TEX_ANY; - - if (vp_outputs & (1 << VERT_RESULT_COL0)) - fp_inputs |= FRAG_BIT_COL0; - if (vp_outputs & (1 << VERT_RESULT_COL1)) - fp_inputs |= FRAG_BIT_COL1; - - fp_inputs |= (((vp_outputs & VERT_RESULT_TEX_ANY) >> VERT_RESULT_TEX0) - << FRAG_ATTRIB_TEX0); - } - - return fp_inputs; -} - - -/** - * Examine current texture environment state and generate a unique - * key to identify it. - */ -static GLuint make_state_key( struct gl_context *ctx, struct state_key *key ) -{ - GLuint i, j; - GLbitfield inputs_referenced = FRAG_BIT_COL0; - const GLbitfield inputs_available = get_fp_input_mask( ctx ); - GLuint keySize; - - memset(key, 0, sizeof(*key)); - - /* _NEW_TEXTURE */ - for (i = 0; i < ctx->Const.MaxTextureUnits; i++) { - const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i]; - const struct gl_texture_object *texObj = texUnit->_Current; - const struct gl_tex_env_combine_state *comb = texUnit->_CurrentCombine; - GLenum format; - - if (!texUnit->_ReallyEnabled || !texUnit->Enabled) - continue; - - format = texObj->Image[0][texObj->BaseLevel]->_BaseFormat; - - key->unit[i].enabled = 1; - key->enabled_units |= (1<nr_enabled_units = i + 1; - inputs_referenced |= FRAG_BIT_TEX(i); - - key->unit[i].source_index = - translate_tex_src_bit(texUnit->_ReallyEnabled); - - key->unit[i].shadow = ((texObj->CompareMode == GL_COMPARE_R_TO_TEXTURE) && - ((format == GL_DEPTH_COMPONENT) || - (format == GL_DEPTH_STENCIL_EXT))); - - key->unit[i].NumArgsRGB = comb->_NumArgsRGB; - key->unit[i].NumArgsA = comb->_NumArgsA; - - key->unit[i].ModeRGB = - translate_mode(texUnit->EnvMode, comb->ModeRGB); - key->unit[i].ModeA = - translate_mode(texUnit->EnvMode, comb->ModeA); - - key->unit[i].ScaleShiftRGB = comb->ScaleShiftRGB; - key->unit[i].ScaleShiftA = comb->ScaleShiftA; - - for (j = 0; j < MAX_COMBINER_TERMS; j++) { - key->unit[i].OptRGB[j].Operand = translate_operand(comb->OperandRGB[j]); - key->unit[i].OptA[j].Operand = translate_operand(comb->OperandA[j]); - key->unit[i].OptRGB[j].Source = translate_source(comb->SourceRGB[j]); - key->unit[i].OptA[j].Source = translate_source(comb->SourceA[j]); - } - - if (key->unit[i].ModeRGB == MODE_BUMP_ENVMAP_ATI) { - /* requires some special translation */ - key->unit[i].NumArgsRGB = 2; - key->unit[i].ScaleShiftRGB = 0; - key->unit[i].OptRGB[0].Operand = OPR_SRC_COLOR; - key->unit[i].OptRGB[0].Source = SRC_TEXTURE; - key->unit[i].OptRGB[1].Operand = OPR_SRC_COLOR; - key->unit[i].OptRGB[1].Source = texUnit->BumpTarget - GL_TEXTURE0 + SRC_TEXTURE0; - } - - /* this is a back-door for enabling cylindrical texture wrap mode */ - if (texObj->Priority == 0.125) - key->unit[i].texture_cyl_wrap = 1; - } - - /* _NEW_LIGHT | _NEW_FOG */ - if (texenv_doing_secondary_color(ctx)) { - key->separate_specular = 1; - inputs_referenced |= FRAG_BIT_COL1; - } - - /* _NEW_FOG */ - if (ctx->Fog.Enabled) { - key->fog_enabled = 1; - key->fog_mode = translate_fog_mode(ctx->Fog.Mode); - inputs_referenced |= FRAG_BIT_FOGC; /* maybe */ - } - - /* _NEW_BUFFERS */ - key->num_draw_buffers = ctx->DrawBuffer->_NumColorDrawBuffers; - - key->inputs_available = (inputs_available & inputs_referenced); - - /* compute size of state key, ignoring unused texture units */ - keySize = sizeof(*key) - sizeof(key->unit) - + key->nr_enabled_units * sizeof(key->unit[0]); - - return keySize; -} - - -/** - * Use uregs to represent registers internally, translate to Mesa's - * expected formats on emit. - * - * NOTE: These are passed by value extensively in this file rather - * than as usual by pointer reference. If this disturbs you, try - * remembering they are just 32bits in size. - * - * GCC is smart enough to deal with these dword-sized structures in - * much the same way as if I had defined them as dwords and was using - * macros to access and set the fields. This is much nicer and easier - * to evolve. - */ -struct ureg { - GLuint file:4; - GLuint idx:8; - GLuint negatebase:1; - GLuint swz:12; - GLuint pad:7; -}; - -static const struct ureg undef = { - PROGRAM_UNDEFINED, - ~0, - 0, - 0, - 0 -}; - - -/** State used to build the fragment program: - */ -struct texenv_fragment_program { - struct gl_fragment_program *program; - struct state_key *state; - - GLbitfield alu_temps; /**< Track texture indirections, see spec. */ - GLbitfield temps_output; /**< Track texture indirections, see spec. */ - GLbitfield temp_in_use; /**< Tracks temporary regs which are in use. */ - GLboolean error; - - struct ureg src_texture[MAX_TEXTURE_COORD_UNITS]; - /* Reg containing each texture unit's sampled texture color, - * else undef. - */ - - struct ureg texcoord_tex[MAX_TEXTURE_COORD_UNITS]; - /* Reg containing texcoord for a texture unit, - * needed for bump mapping, else undef. - */ - - struct ureg src_previous; /**< Reg containing color from previous - * stage. May need to be decl'd. - */ - - GLuint last_tex_stage; /**< Number of last enabled texture unit */ - - struct ureg half; - struct ureg one; - struct ureg zero; -}; - - - -static struct ureg make_ureg(GLuint file, GLuint idx) -{ - struct ureg reg; - reg.file = file; - reg.idx = idx; - reg.negatebase = 0; - reg.swz = SWIZZLE_NOOP; - reg.pad = 0; - return reg; -} - -static struct ureg swizzle( struct ureg reg, int x, int y, int z, int w ) -{ - reg.swz = MAKE_SWIZZLE4(GET_SWZ(reg.swz, x), - GET_SWZ(reg.swz, y), - GET_SWZ(reg.swz, z), - GET_SWZ(reg.swz, w)); - - return reg; -} - -static struct ureg swizzle1( struct ureg reg, int x ) -{ - return swizzle(reg, x, x, x, x); -} - -static struct ureg negate( struct ureg reg ) -{ - reg.negatebase ^= 1; - return reg; -} - -static GLboolean is_undef( struct ureg reg ) -{ - return reg.file == PROGRAM_UNDEFINED; -} - - -static struct ureg get_temp( struct texenv_fragment_program *p ) -{ - GLint bit; - - /* First try and reuse temps which have been used already: - */ - bit = _mesa_ffs( ~p->temp_in_use & p->alu_temps ); - - /* Then any unused temporary: - */ - if (!bit) - bit = _mesa_ffs( ~p->temp_in_use ); - - if (!bit) { - _mesa_problem(NULL, "%s: out of temporaries\n", __FILE__); - exit(1); - } - - if ((GLuint) bit > p->program->Base.NumTemporaries) - p->program->Base.NumTemporaries = bit; - - p->temp_in_use |= 1<<(bit-1); - return make_ureg(PROGRAM_TEMPORARY, (bit-1)); -} - -static struct ureg get_tex_temp( struct texenv_fragment_program *p ) -{ - int bit; - - /* First try to find available temp not previously used (to avoid - * starting a new texture indirection). According to the spec, the - * ~p->temps_output isn't necessary, but will keep it there for - * now: - */ - bit = _mesa_ffs( ~p->temp_in_use & ~p->alu_temps & ~p->temps_output ); - - /* Then any unused temporary: - */ - if (!bit) - bit = _mesa_ffs( ~p->temp_in_use ); - - if (!bit) { - _mesa_problem(NULL, "%s: out of temporaries\n", __FILE__); - exit(1); - } - - if ((GLuint) bit > p->program->Base.NumTemporaries) - p->program->Base.NumTemporaries = bit; - - p->temp_in_use |= 1<<(bit-1); - return make_ureg(PROGRAM_TEMPORARY, (bit-1)); -} - - -/** Mark a temp reg as being no longer allocatable. */ -static void reserve_temp( struct texenv_fragment_program *p, struct ureg r ) -{ - if (r.file == PROGRAM_TEMPORARY) - p->temps_output |= (1 << r.idx); -} - - -static void release_temps(struct gl_context *ctx, struct texenv_fragment_program *p ) -{ - GLuint max_temp = ctx->Const.FragmentProgram.MaxTemps; - - /* KW: To support tex_env_crossbar, don't release the registers in - * temps_output. - */ - if (max_temp >= sizeof(int) * 8) - p->temp_in_use = p->temps_output; - else - p->temp_in_use = ~((1<temps_output; -} - - -static struct ureg register_param5( struct texenv_fragment_program *p, - GLint s0, - GLint s1, - GLint s2, - GLint s3, - GLint s4) -{ - gl_state_index tokens[STATE_LENGTH]; - GLuint idx; - tokens[0] = s0; - tokens[1] = s1; - tokens[2] = s2; - tokens[3] = s3; - tokens[4] = s4; - idx = _mesa_add_state_reference( p->program->Base.Parameters, tokens ); - return make_ureg(PROGRAM_STATE_VAR, idx); -} - - -#define register_param1(p,s0) register_param5(p,s0,0,0,0,0) -#define register_param2(p,s0,s1) register_param5(p,s0,s1,0,0,0) -#define register_param3(p,s0,s1,s2) register_param5(p,s0,s1,s2,0,0) -#define register_param4(p,s0,s1,s2,s3) register_param5(p,s0,s1,s2,s3,0) - -static GLuint frag_to_vert_attrib( GLuint attrib ) -{ - switch (attrib) { - case FRAG_ATTRIB_COL0: return VERT_ATTRIB_COLOR0; - case FRAG_ATTRIB_COL1: return VERT_ATTRIB_COLOR1; - default: - assert(attrib >= FRAG_ATTRIB_TEX0); - assert(attrib <= FRAG_ATTRIB_TEX7); - return attrib - FRAG_ATTRIB_TEX0 + VERT_ATTRIB_TEX0; - } -} - - -static struct ureg register_input( struct texenv_fragment_program *p, GLuint input ) -{ - if (p->state->inputs_available & (1<program->Base.InputsRead |= (1 << input); - return make_ureg(PROGRAM_INPUT, input); - } - else { - GLuint idx = frag_to_vert_attrib( input ); - return register_param3( p, STATE_INTERNAL, STATE_CURRENT_ATTRIB, idx ); - } -} - - -static void emit_arg( struct prog_src_register *reg, - struct ureg ureg ) -{ - reg->File = ureg.file; - reg->Index = ureg.idx; - reg->Swizzle = ureg.swz; - reg->Negate = ureg.negatebase ? NEGATE_XYZW : NEGATE_NONE; - reg->Abs = GL_FALSE; -} - -static void emit_dst( struct prog_dst_register *dst, - struct ureg ureg, GLuint mask ) -{ - dst->File = ureg.file; - dst->Index = ureg.idx; - dst->WriteMask = mask; - dst->CondMask = COND_TR; /* always pass cond test */ - dst->CondSwizzle = SWIZZLE_NOOP; -} - -static struct prog_instruction * -emit_op(struct texenv_fragment_program *p, - enum prog_opcode op, - struct ureg dest, - GLuint mask, - GLboolean saturate, - struct ureg src0, - struct ureg src1, - struct ureg src2 ) -{ - const GLuint nr = p->program->Base.NumInstructions++; - struct prog_instruction *inst = &p->program->Base.Instructions[nr]; - - assert(nr < MAX_INSTRUCTIONS); - - _mesa_init_instructions(inst, 1); - inst->Opcode = op; - - emit_arg( &inst->SrcReg[0], src0 ); - emit_arg( &inst->SrcReg[1], src1 ); - emit_arg( &inst->SrcReg[2], src2 ); - - inst->SaturateMode = saturate ? SATURATE_ZERO_ONE : SATURATE_OFF; - - emit_dst( &inst->DstReg, dest, mask ); - -#if 0 - /* Accounting for indirection tracking: - */ - if (dest.file == PROGRAM_TEMPORARY) - p->temps_output |= 1 << dest.idx; -#endif - - return inst; -} - - -static struct ureg emit_arith( struct texenv_fragment_program *p, - enum prog_opcode op, - struct ureg dest, - GLuint mask, - GLboolean saturate, - struct ureg src0, - struct ureg src1, - struct ureg src2 ) -{ - emit_op(p, op, dest, mask, saturate, src0, src1, src2); - - /* Accounting for indirection tracking: - */ - if (src0.file == PROGRAM_TEMPORARY) - p->alu_temps |= 1 << src0.idx; - - if (!is_undef(src1) && src1.file == PROGRAM_TEMPORARY) - p->alu_temps |= 1 << src1.idx; - - if (!is_undef(src2) && src2.file == PROGRAM_TEMPORARY) - p->alu_temps |= 1 << src2.idx; - - if (dest.file == PROGRAM_TEMPORARY) - p->alu_temps |= 1 << dest.idx; - - p->program->Base.NumAluInstructions++; - return dest; -} - -static struct ureg emit_texld( struct texenv_fragment_program *p, - enum prog_opcode op, - struct ureg dest, - GLuint destmask, - GLuint tex_unit, - GLuint tex_idx, - GLuint tex_shadow, - struct ureg coord ) -{ - struct prog_instruction *inst = emit_op( p, op, - dest, destmask, - GL_FALSE, /* don't saturate? */ - coord, /* arg 0? */ - undef, - undef); - - inst->TexSrcTarget = tex_idx; - inst->TexSrcUnit = tex_unit; - inst->TexShadow = tex_shadow; - - p->program->Base.NumTexInstructions++; - - /* Accounting for indirection tracking: - */ - reserve_temp(p, dest); - -#if 0 - /* Is this a texture indirection? - */ - if ((coord.file == PROGRAM_TEMPORARY && - (p->temps_output & (1<alu_temps & (1<program->Base.NumTexIndirections++; - p->temps_output = 1<alu_temps = 0; - assert(0); /* KW: texture env crossbar */ - } -#endif - - return dest; -} - - -static struct ureg register_const4f( struct texenv_fragment_program *p, - GLfloat s0, - GLfloat s1, - GLfloat s2, - GLfloat s3) -{ - GLfloat values[4]; - GLuint idx, swizzle; - struct ureg r; - values[0] = s0; - values[1] = s1; - values[2] = s2; - values[3] = s3; - idx = _mesa_add_unnamed_constant( p->program->Base.Parameters, values, 4, - &swizzle ); - r = make_ureg(PROGRAM_CONSTANT, idx); - r.swz = swizzle; - return r; -} - -#define register_scalar_const(p, s0) register_const4f(p, s0, s0, s0, s0) -#define register_const1f(p, s0) register_const4f(p, s0, 0, 0, 1) -#define register_const2f(p, s0, s1) register_const4f(p, s0, s1, 0, 1) -#define register_const3f(p, s0, s1, s2) register_const4f(p, s0, s1, s2, 1) - - -static struct ureg get_one( struct texenv_fragment_program *p ) -{ - if (is_undef(p->one)) - p->one = register_scalar_const(p, 1.0); - return p->one; -} - -static struct ureg get_half( struct texenv_fragment_program *p ) -{ - if (is_undef(p->half)) - p->half = register_scalar_const(p, 0.5); - return p->half; -} - -static struct ureg get_zero( struct texenv_fragment_program *p ) -{ - if (is_undef(p->zero)) - p->zero = register_scalar_const(p, 0.0); - return p->zero; -} - - -static void program_error( struct texenv_fragment_program *p, const char *msg ) -{ - _mesa_problem(NULL, "%s", msg); - p->error = 1; -} - -static struct ureg get_source( struct texenv_fragment_program *p, - GLuint src, GLuint unit ) -{ - switch (src) { - case SRC_TEXTURE: - assert(!is_undef(p->src_texture[unit])); - return p->src_texture[unit]; - - case SRC_TEXTURE0: - case SRC_TEXTURE1: - case SRC_TEXTURE2: - case SRC_TEXTURE3: - case SRC_TEXTURE4: - case SRC_TEXTURE5: - case SRC_TEXTURE6: - case SRC_TEXTURE7: - assert(!is_undef(p->src_texture[src - SRC_TEXTURE0])); - return p->src_texture[src - SRC_TEXTURE0]; - - case SRC_CONSTANT: - return register_param2(p, STATE_TEXENV_COLOR, unit); - - case SRC_PRIMARY_COLOR: - return register_input(p, FRAG_ATTRIB_COL0); - - case SRC_ZERO: - return get_zero(p); - - case SRC_PREVIOUS: - if (is_undef(p->src_previous)) - return register_input(p, FRAG_ATTRIB_COL0); - else - return p->src_previous; - - default: - assert(0); - return undef; - } -} - -static struct ureg emit_combine_source( struct texenv_fragment_program *p, - GLuint mask, - GLuint unit, - GLuint source, - GLuint operand ) -{ - struct ureg arg, src, one; - - src = get_source(p, source, unit); - - switch (operand) { - case OPR_ONE_MINUS_SRC_COLOR: - /* Get unused tmp, - * Emit tmp = 1.0 - arg.xyzw - */ - arg = get_temp( p ); - one = get_one( p ); - return emit_arith( p, OPCODE_SUB, arg, mask, 0, one, src, undef); - - case OPR_SRC_ALPHA: - if (mask == WRITEMASK_W) - return src; - else - return swizzle1( src, SWIZZLE_W ); - case OPR_ONE_MINUS_SRC_ALPHA: - /* Get unused tmp, - * Emit tmp = 1.0 - arg.wwww - */ - arg = get_temp(p); - one = get_one(p); - return emit_arith(p, OPCODE_SUB, arg, mask, 0, - one, swizzle1(src, SWIZZLE_W), undef); - case OPR_ZERO: - return get_zero(p); - case OPR_ONE: - return get_one(p); - case OPR_SRC_COLOR: - return src; - default: - assert(0); - return src; - } -} - -/** - * Check if the RGB and Alpha sources and operands match for the given - * texture unit's combinder state. When the RGB and A sources and - * operands match, we can emit fewer instructions. - */ -static GLboolean args_match( const struct state_key *key, GLuint unit ) -{ - GLuint i, numArgs = key->unit[unit].NumArgsRGB; - - for (i = 0; i < numArgs; i++) { - if (key->unit[unit].OptA[i].Source != key->unit[unit].OptRGB[i].Source) - return GL_FALSE; - - switch (key->unit[unit].OptA[i].Operand) { - case OPR_SRC_ALPHA: - switch (key->unit[unit].OptRGB[i].Operand) { - case OPR_SRC_COLOR: - case OPR_SRC_ALPHA: - break; - default: - return GL_FALSE; - } - break; - case OPR_ONE_MINUS_SRC_ALPHA: - switch (key->unit[unit].OptRGB[i].Operand) { - case OPR_ONE_MINUS_SRC_COLOR: - case OPR_ONE_MINUS_SRC_ALPHA: - break; - default: - return GL_FALSE; - } - break; - default: - return GL_FALSE; /* impossible */ - } - } - - return GL_TRUE; -} - -static struct ureg emit_combine( struct texenv_fragment_program *p, - struct ureg dest, - GLuint mask, - GLboolean saturate, - GLuint unit, - GLuint nr, - GLuint mode, - const struct mode_opt *opt) -{ - struct ureg src[MAX_COMBINER_TERMS]; - struct ureg tmp, half; - GLuint i; - - assert(nr <= MAX_COMBINER_TERMS); - - for (i = 0; i < nr; i++) - src[i] = emit_combine_source( p, mask, unit, opt[i].Source, opt[i].Operand ); - - switch (mode) { - case MODE_REPLACE: - if (mask == WRITEMASK_XYZW && !saturate) - return src[0]; - else - return emit_arith( p, OPCODE_MOV, dest, mask, saturate, src[0], undef, undef ); - case MODE_MODULATE: - return emit_arith( p, OPCODE_MUL, dest, mask, saturate, - src[0], src[1], undef ); - case MODE_ADD: - return emit_arith( p, OPCODE_ADD, dest, mask, saturate, - src[0], src[1], undef ); - case MODE_ADD_SIGNED: - /* tmp = arg0 + arg1 - * result = tmp - .5 - */ - half = get_half(p); - tmp = get_temp( p ); - emit_arith( p, OPCODE_ADD, tmp, mask, 0, src[0], src[1], undef ); - emit_arith( p, OPCODE_SUB, dest, mask, saturate, tmp, half, undef ); - return dest; - case MODE_INTERPOLATE: - /* Arg0 * (Arg2) + Arg1 * (1-Arg2) -- note arguments are reordered: - */ - return emit_arith( p, OPCODE_LRP, dest, mask, saturate, src[2], src[0], src[1] ); - - case MODE_SUBTRACT: - return emit_arith( p, OPCODE_SUB, dest, mask, saturate, src[0], src[1], undef ); - - case MODE_DOT3_RGBA: - case MODE_DOT3_RGBA_EXT: - case MODE_DOT3_RGB_EXT: - case MODE_DOT3_RGB: { - struct ureg tmp0 = get_temp( p ); - struct ureg tmp1 = get_temp( p ); - struct ureg neg1 = register_scalar_const(p, -1); - struct ureg two = register_scalar_const(p, 2); - - /* tmp0 = 2*src0 - 1 - * tmp1 = 2*src1 - 1 - * - * dst = tmp0 dot3 tmp1 - */ - emit_arith( p, OPCODE_MAD, tmp0, WRITEMASK_XYZW, 0, - two, src[0], neg1); - - if (memcmp(&src[0], &src[1], sizeof(struct ureg)) == 0) - tmp1 = tmp0; - else - emit_arith( p, OPCODE_MAD, tmp1, WRITEMASK_XYZW, 0, - two, src[1], neg1); - emit_arith( p, OPCODE_DP3, dest, mask, saturate, tmp0, tmp1, undef); - return dest; - } - case MODE_MODULATE_ADD_ATI: - /* Arg0 * Arg2 + Arg1 */ - return emit_arith( p, OPCODE_MAD, dest, mask, saturate, - src[0], src[2], src[1] ); - case MODE_MODULATE_SIGNED_ADD_ATI: { - /* Arg0 * Arg2 + Arg1 - 0.5 */ - struct ureg tmp0 = get_temp(p); - half = get_half(p); - emit_arith( p, OPCODE_MAD, tmp0, mask, 0, src[0], src[2], src[1] ); - emit_arith( p, OPCODE_SUB, dest, mask, saturate, tmp0, half, undef ); - return dest; - } - case MODE_MODULATE_SUBTRACT_ATI: - /* Arg0 * Arg2 - Arg1 */ - emit_arith( p, OPCODE_MAD, dest, mask, 0, src[0], src[2], negate(src[1]) ); - return dest; - case MODE_ADD_PRODUCTS: - /* Arg0 * Arg1 + Arg2 * Arg3 */ - { - struct ureg tmp0 = get_temp(p); - emit_arith( p, OPCODE_MUL, tmp0, mask, 0, src[0], src[1], undef ); - emit_arith( p, OPCODE_MAD, dest, mask, saturate, src[2], src[3], tmp0 ); - } - return dest; - case MODE_ADD_PRODUCTS_SIGNED: - /* Arg0 * Arg1 + Arg2 * Arg3 - 0.5 */ - { - struct ureg tmp0 = get_temp(p); - half = get_half(p); - emit_arith( p, OPCODE_MUL, tmp0, mask, 0, src[0], src[1], undef ); - emit_arith( p, OPCODE_MAD, tmp0, mask, 0, src[2], src[3], tmp0 ); - emit_arith( p, OPCODE_SUB, dest, mask, saturate, tmp0, half, undef ); - } - return dest; - case MODE_BUMP_ENVMAP_ATI: - /* special - not handled here */ - assert(0); - return src[0]; - default: - assert(0); - return src[0]; - } -} - - -/** - * Generate instructions for one texture unit's env/combiner mode. - */ -static struct ureg -emit_texenv(struct texenv_fragment_program *p, GLuint unit) -{ - const struct state_key *key = p->state; - GLboolean rgb_saturate, alpha_saturate; - GLuint rgb_shift, alpha_shift; - struct ureg out, dest; - - if (!key->unit[unit].enabled) { - return get_source(p, SRC_PREVIOUS, 0); - } - if (key->unit[unit].ModeRGB == MODE_BUMP_ENVMAP_ATI) { - /* this isn't really a env stage delivering a color and handled elsewhere */ - return get_source(p, SRC_PREVIOUS, 0); - } - - switch (key->unit[unit].ModeRGB) { - case MODE_DOT3_RGB_EXT: - alpha_shift = key->unit[unit].ScaleShiftA; - rgb_shift = 0; - break; - case MODE_DOT3_RGBA_EXT: - alpha_shift = 0; - rgb_shift = 0; - break; - default: - rgb_shift = key->unit[unit].ScaleShiftRGB; - alpha_shift = key->unit[unit].ScaleShiftA; - break; - } - - /* If we'll do rgb/alpha shifting don't saturate in emit_combine(). - * We don't want to clamp twice. - */ - if (rgb_shift) - rgb_saturate = GL_FALSE; /* saturate after rgb shift */ - else if (need_saturate(key->unit[unit].ModeRGB)) - rgb_saturate = GL_TRUE; - else - rgb_saturate = GL_FALSE; - - if (alpha_shift) - alpha_saturate = GL_FALSE; /* saturate after alpha shift */ - else if (need_saturate(key->unit[unit].ModeA)) - alpha_saturate = GL_TRUE; - else - alpha_saturate = GL_FALSE; - - /* If this is the very last calculation (and various other conditions - * are met), emit directly to the color output register. Otherwise, - * emit to a temporary register. - */ - if (key->separate_specular || - unit != p->last_tex_stage || - alpha_shift || - key->num_draw_buffers != 1 || - rgb_shift) - dest = get_temp( p ); - else - dest = make_ureg(PROGRAM_OUTPUT, FRAG_RESULT_COLOR); - - /* Emit the RGB and A combine ops - */ - if (key->unit[unit].ModeRGB == key->unit[unit].ModeA && - args_match(key, unit)) { - out = emit_combine( p, dest, WRITEMASK_XYZW, rgb_saturate, - unit, - key->unit[unit].NumArgsRGB, - key->unit[unit].ModeRGB, - key->unit[unit].OptRGB); - } - else if (key->unit[unit].ModeRGB == MODE_DOT3_RGBA_EXT || - key->unit[unit].ModeRGB == MODE_DOT3_RGBA) { - out = emit_combine( p, dest, WRITEMASK_XYZW, rgb_saturate, - unit, - key->unit[unit].NumArgsRGB, - key->unit[unit].ModeRGB, - key->unit[unit].OptRGB); - } - else { - /* Need to do something to stop from re-emitting identical - * argument calculations here: - */ - out = emit_combine( p, dest, WRITEMASK_XYZ, rgb_saturate, - unit, - key->unit[unit].NumArgsRGB, - key->unit[unit].ModeRGB, - key->unit[unit].OptRGB); - out = emit_combine( p, dest, WRITEMASK_W, alpha_saturate, - unit, - key->unit[unit].NumArgsA, - key->unit[unit].ModeA, - key->unit[unit].OptA); - } - - /* Deal with the final shift: - */ - if (alpha_shift || rgb_shift) { - struct ureg shift; - GLboolean saturate = GL_TRUE; /* always saturate at this point */ - - if (rgb_shift == alpha_shift) { - shift = register_scalar_const(p, (GLfloat)(1<src_texture[unit])) { - const GLuint texTarget = p->state->unit[unit].source_index; - struct ureg texcoord; - struct ureg tmp = get_tex_temp( p ); - - if (is_undef(p->texcoord_tex[unit])) { - texcoord = register_input(p, FRAG_ATTRIB_TEX0+unit); - } - else { - /* might want to reuse this reg for tex output actually */ - texcoord = p->texcoord_tex[unit]; - } - - /* TODO: Use D0_MASK_XY where possible. - */ - if (p->state->unit[unit].enabled) { - GLboolean shadow = GL_FALSE; - - if (p->state->unit[unit].shadow) { - p->program->Base.ShadowSamplers |= 1 << unit; - shadow = GL_TRUE; - } - - p->src_texture[unit] = emit_texld( p, OPCODE_TXP, - tmp, WRITEMASK_XYZW, - unit, texTarget, shadow, - texcoord ); - - p->program->Base.SamplersUsed |= (1 << unit); - /* This identity mapping should already be in place - * (see _mesa_init_program_struct()) but let's be safe. - */ - p->program->Base.SamplerUnits[unit] = unit; - } - else - p->src_texture[unit] = get_zero(p); - - if (p->state->unit[unit].texture_cyl_wrap) { - /* set flag which is checked by Mesa->Gallium program translation */ - p->program->Base.InputFlags[0] |= PROG_PARAM_BIT_CYL_WRAP; - } - - } -} - -static GLboolean load_texenv_source( struct texenv_fragment_program *p, - GLuint src, GLuint unit ) -{ - switch (src) { - case SRC_TEXTURE: - load_texture(p, unit); - break; - - case SRC_TEXTURE0: - case SRC_TEXTURE1: - case SRC_TEXTURE2: - case SRC_TEXTURE3: - case SRC_TEXTURE4: - case SRC_TEXTURE5: - case SRC_TEXTURE6: - case SRC_TEXTURE7: - load_texture(p, src - SRC_TEXTURE0); - break; - - default: - /* not a texture src - do nothing */ - break; - } - - return GL_TRUE; -} - - -/** - * Generate instructions for loading all texture source terms. - */ -static GLboolean -load_texunit_sources( struct texenv_fragment_program *p, GLuint unit ) -{ - const struct state_key *key = p->state; - GLuint i; - - for (i = 0; i < key->unit[unit].NumArgsRGB; i++) { - load_texenv_source( p, key->unit[unit].OptRGB[i].Source, unit ); - } - - for (i = 0; i < key->unit[unit].NumArgsA; i++) { - load_texenv_source( p, key->unit[unit].OptA[i].Source, unit ); - } - - return GL_TRUE; -} - -/** - * Generate instructions for loading bump map textures. - */ -static GLboolean -load_texunit_bumpmap( struct texenv_fragment_program *p, GLuint unit ) -{ - const struct state_key *key = p->state; - GLuint bumpedUnitNr = key->unit[unit].OptRGB[1].Source - SRC_TEXTURE0; - struct ureg texcDst, bumpMapRes; - struct ureg constdudvcolor = register_const4f(p, 0.0, 0.0, 0.0, 1.0); - struct ureg texcSrc = register_input(p, FRAG_ATTRIB_TEX0 + bumpedUnitNr); - struct ureg rotMat0 = register_param3( p, STATE_INTERNAL, STATE_ROT_MATRIX_0, unit ); - struct ureg rotMat1 = register_param3( p, STATE_INTERNAL, STATE_ROT_MATRIX_1, unit ); - - load_texenv_source( p, unit + SRC_TEXTURE0, unit ); - - bumpMapRes = get_source(p, key->unit[unit].OptRGB[0].Source, unit); - texcDst = get_tex_temp( p ); - p->texcoord_tex[bumpedUnitNr] = texcDst; - - /* Apply rot matrix and add coords to be available in next phase. - * dest = (Arg0.xxxx * rotMat0 + Arg1) + (Arg0.yyyy * rotMat1) - * note only 2 coords are affected the rest are left unchanged (mul by 0) - */ - emit_arith( p, OPCODE_MAD, texcDst, WRITEMASK_XYZW, 0, - swizzle1(bumpMapRes, SWIZZLE_X), rotMat0, texcSrc ); - emit_arith( p, OPCODE_MAD, texcDst, WRITEMASK_XYZW, 0, - swizzle1(bumpMapRes, SWIZZLE_Y), rotMat1, texcDst ); - - /* Move 0,0,0,1 into bumpmap src if someone (crossbar) is foolish - * enough to access this later, should optimize away. - */ - emit_arith( p, OPCODE_MOV, bumpMapRes, WRITEMASK_XYZW, 0, - constdudvcolor, undef, undef ); - - return GL_TRUE; -} - -/** - * Generate a new fragment program which implements the context's - * current texture env/combine mode. - */ -static void -create_new_program(struct gl_context *ctx, struct state_key *key, - struct gl_fragment_program *program) -{ - struct prog_instruction instBuffer[MAX_INSTRUCTIONS]; - struct texenv_fragment_program p; - GLuint unit; - struct ureg cf, out; - int i; - - memset(&p, 0, sizeof(p)); - p.state = key; - p.program = program; - - /* During code generation, use locally-allocated instruction buffer, - * then alloc dynamic storage below. - */ - p.program->Base.Instructions = instBuffer; - p.program->Base.Target = GL_FRAGMENT_PROGRAM_ARB; - p.program->Base.String = NULL; - p.program->Base.NumTexIndirections = 1; /* is this right? */ - p.program->Base.NumTexInstructions = 0; - p.program->Base.NumAluInstructions = 0; - p.program->Base.NumInstructions = 0; - p.program->Base.NumTemporaries = 0; - p.program->Base.NumParameters = 0; - p.program->Base.NumAttributes = 0; - p.program->Base.NumAddressRegs = 0; - p.program->Base.Parameters = _mesa_new_parameter_list(); - p.program->Base.InputsRead = 0x0; - - if (key->num_draw_buffers == 1) - p.program->Base.OutputsWritten = 1 << FRAG_RESULT_COLOR; - else { - for (i = 0; i < key->num_draw_buffers; i++) - p.program->Base.OutputsWritten |= (1 << (FRAG_RESULT_DATA0 + i)); - } - - for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) { - p.src_texture[unit] = undef; - p.texcoord_tex[unit] = undef; - } - - p.src_previous = undef; - p.half = undef; - p.zero = undef; - p.one = undef; - - p.last_tex_stage = 0; - release_temps(ctx, &p); - - if (key->enabled_units && key->num_draw_buffers) { - GLboolean needbumpstage = GL_FALSE; - - /* Zeroth pass - bump map textures first */ - for (unit = 0; unit < key->nr_enabled_units; unit++) - if (key->unit[unit].enabled && - key->unit[unit].ModeRGB == MODE_BUMP_ENVMAP_ATI) { - needbumpstage = GL_TRUE; - load_texunit_bumpmap( &p, unit ); - } - if (needbumpstage) - p.program->Base.NumTexIndirections++; - - /* First pass - to support texture_env_crossbar, first identify - * all referenced texture sources and emit texld instructions - * for each: - */ - for (unit = 0; unit < key->nr_enabled_units; unit++) - if (key->unit[unit].enabled) { - load_texunit_sources( &p, unit ); - p.last_tex_stage = unit; - } - - /* Second pass - emit combine instructions to build final color: - */ - for (unit = 0; unit < key->nr_enabled_units; unit++) - if (key->unit[unit].enabled) { - p.src_previous = emit_texenv( &p, unit ); - reserve_temp(&p, p.src_previous); /* don't re-use this temp reg */ - release_temps(ctx, &p); /* release all temps */ - } - } - - cf = get_source( &p, SRC_PREVIOUS, 0 ); - - for (i = 0; i < key->num_draw_buffers; i++) { - if (key->num_draw_buffers == 1) - out = make_ureg( PROGRAM_OUTPUT, FRAG_RESULT_COLOR ); - else { - out = make_ureg( PROGRAM_OUTPUT, FRAG_RESULT_DATA0 + i ); - } - - if (key->separate_specular) { - /* Emit specular add. - */ - struct ureg s = register_input(&p, FRAG_ATTRIB_COL1); - emit_arith( &p, OPCODE_ADD, out, WRITEMASK_XYZ, 0, cf, s, undef ); - emit_arith( &p, OPCODE_MOV, out, WRITEMASK_W, 0, cf, undef, undef ); - } - else if (memcmp(&cf, &out, sizeof(cf)) != 0) { - /* Will wind up in here if no texture enabled or a couple of - * other scenarios (GL_REPLACE for instance). - */ - emit_arith( &p, OPCODE_MOV, out, WRITEMASK_XYZW, 0, cf, undef, undef ); - } - } - /* Finish up: - */ - emit_arith( &p, OPCODE_END, undef, WRITEMASK_XYZW, 0, undef, undef, undef); - - if (key->fog_enabled) { - /* Pull fog mode from struct gl_context, the value in the state key is - * a reduced value and not what is expected in FogOption - */ - p.program->FogOption = ctx->Fog.Mode; - p.program->Base.InputsRead |= FRAG_BIT_FOGC; - } - else { - p.program->FogOption = GL_NONE; - } - - if (p.program->Base.NumTexIndirections > ctx->Const.FragmentProgram.MaxTexIndirections) - program_error(&p, "Exceeded max nr indirect texture lookups"); - - if (p.program->Base.NumTexInstructions > ctx->Const.FragmentProgram.MaxTexInstructions) - program_error(&p, "Exceeded max TEX instructions"); - - if (p.program->Base.NumAluInstructions > ctx->Const.FragmentProgram.MaxAluInstructions) - program_error(&p, "Exceeded max ALU instructions"); - - ASSERT(p.program->Base.NumInstructions <= MAX_INSTRUCTIONS); - - /* Allocate final instruction array */ - p.program->Base.Instructions - = _mesa_alloc_instructions(p.program->Base.NumInstructions); - if (!p.program->Base.Instructions) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, - "generating tex env program"); - return; - } - _mesa_copy_instructions(p.program->Base.Instructions, instBuffer, - p.program->Base.NumInstructions); - - if (key->num_draw_buffers && p.program->FogOption) { - _mesa_append_fog_code(ctx, p.program); - p.program->FogOption = GL_NONE; - } - - - /* Notify driver the fragment program has (actually) changed. - */ - if (ctx->Driver.ProgramStringNotify) { - GLboolean ok = ctx->Driver.ProgramStringNotify(ctx, - GL_FRAGMENT_PROGRAM_ARB, - &p.program->Base); - /* Driver should be able to handle any texenv programs as long as - * the driver correctly reported max number of texture units correctly, - * etc. - */ - ASSERT(ok); - (void) ok; /* silence unused var warning */ - } - - if (DISASSEM) { - _mesa_print_program(&p.program->Base); - printf("\n"); - } -} - - -/** - * Return a fragment program which implements the current - * fixed-function texture, fog and color-sum operations. - */ -struct gl_fragment_program * -_mesa_get_fixed_func_fragment_program(struct gl_context *ctx) -{ - struct gl_fragment_program *prog; - struct state_key key; - GLuint keySize; - - keySize = make_state_key(ctx, &key); - - prog = (struct gl_fragment_program *) - _mesa_search_program_cache(ctx->FragmentProgram.Cache, - &key, keySize); - - if (!prog) { - prog = (struct gl_fragment_program *) - ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); - - create_new_program(ctx, &key, prog); - - _mesa_program_cache_insert(ctx, ctx->FragmentProgram.Cache, - &key, keySize, &prog->Base); - } - - return prog; -} diff --git a/mesalib/src/mesa/main/texenvprogram.h b/mesalib/src/mesa/main/texenvprogram.h index 0895ebacb..dba775feb 100644 --- a/mesalib/src/mesa/main/texenvprogram.h +++ b/mesalib/src/mesa/main/texenvprogram.h @@ -29,7 +29,7 @@ struct gl_context; -extern struct gl_fragment_program * +extern struct gl_shader_program * _mesa_get_fixed_func_fragment_program(struct gl_context *ctx); #endif diff --git a/mesalib/src/mesa/main/uniforms.c b/mesalib/src/mesa/main/uniforms.c index eb289722d..523b8e1a9 100644 --- a/mesalib/src/mesa/main/uniforms.c +++ b/mesalib/src/mesa/main/uniforms.c @@ -1,1691 +1,1707 @@ -/* - * Mesa 3-D graphics library - * - * Copyright (C) 2004-2008 Brian Paul All Rights Reserved. - * Copyright (C) 2009-2010 VMware, Inc. All Rights Reserved. - * Copyright © 2010 Intel Corporation - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/** - * \file uniforms.c - * Functions related to GLSL uniform variables. - * \author Brian Paul - */ - -/** - * XXX things to do: - * 1. Check that the right error code is generated for all _mesa_error() calls. - * 2. Insert FLUSH_VERTICES calls in various places - */ - - -#include "main/glheader.h" -#include "main/context.h" -#include "main/dispatch.h" -#include "main/mfeatures.h" -#include "main/mtypes.h" -#include "main/shaderapi.h" -#include "main/shaderobj.h" -#include "main/uniforms.h" -#include "program/prog_parameter.h" -#include "program/prog_statevars.h" -#include "program/prog_uniform.h" -#include "program/prog_instruction.h" - - -static GLenum -base_uniform_type(GLenum type) -{ - switch (type) { -#if 0 /* not needed, for now */ - case GL_BOOL: - case GL_BOOL_VEC2: - case GL_BOOL_VEC3: - case GL_BOOL_VEC4: - return GL_BOOL; -#endif - case GL_FLOAT: - case GL_FLOAT_VEC2: - case GL_FLOAT_VEC3: - case GL_FLOAT_VEC4: - return GL_FLOAT; - case GL_UNSIGNED_INT: - case GL_UNSIGNED_INT_VEC2: - case GL_UNSIGNED_INT_VEC3: - case GL_UNSIGNED_INT_VEC4: - return GL_UNSIGNED_INT; - case GL_INT: - case GL_INT_VEC2: - case GL_INT_VEC3: - case GL_INT_VEC4: - return GL_INT; - default: - _mesa_problem(NULL, "Invalid type in base_uniform_type()"); - return GL_FLOAT; - } -} - -static struct gl_builtin_uniform_element gl_DepthRange_elements[] = { - {"near", {STATE_DEPTH_RANGE, 0, 0}, SWIZZLE_XXXX}, - {"far", {STATE_DEPTH_RANGE, 0, 0}, SWIZZLE_YYYY}, - {"diff", {STATE_DEPTH_RANGE, 0, 0}, SWIZZLE_ZZZZ}, -}; - -static struct gl_builtin_uniform_element gl_ClipPlane_elements[] = { - {NULL, {STATE_CLIPPLANE, 0, 0}, SWIZZLE_XYZW} -}; - -static struct gl_builtin_uniform_element gl_Point_elements[] = { - {"size", {STATE_POINT_SIZE}, SWIZZLE_XXXX}, - {"sizeMin", {STATE_POINT_SIZE}, SWIZZLE_YYYY}, - {"sizeMax", {STATE_POINT_SIZE}, SWIZZLE_ZZZZ}, - {"fadeThresholdSize", {STATE_POINT_SIZE}, SWIZZLE_WWWW}, - {"distanceConstantAttenuation", {STATE_POINT_ATTENUATION}, SWIZZLE_XXXX}, - {"distanceLinearAttenuation", {STATE_POINT_ATTENUATION}, SWIZZLE_YYYY}, - {"distanceQuadraticAttenuation", {STATE_POINT_ATTENUATION}, SWIZZLE_ZZZZ}, -}; - -static struct gl_builtin_uniform_element gl_FrontMaterial_elements[] = { - {"emission", {STATE_MATERIAL, 0, STATE_EMISSION}, SWIZZLE_XYZW}, - {"ambient", {STATE_MATERIAL, 0, STATE_AMBIENT}, SWIZZLE_XYZW}, - {"diffuse", {STATE_MATERIAL, 0, STATE_DIFFUSE}, SWIZZLE_XYZW}, - {"specular", {STATE_MATERIAL, 0, STATE_SPECULAR}, SWIZZLE_XYZW}, - {"shininess", {STATE_MATERIAL, 0, STATE_SHININESS}, SWIZZLE_XXXX}, -}; - -static struct gl_builtin_uniform_element gl_BackMaterial_elements[] = { - {"emission", {STATE_MATERIAL, 1, STATE_EMISSION}, SWIZZLE_XYZW}, - {"ambient", {STATE_MATERIAL, 1, STATE_AMBIENT}, SWIZZLE_XYZW}, - {"diffuse", {STATE_MATERIAL, 1, STATE_DIFFUSE}, SWIZZLE_XYZW}, - {"specular", {STATE_MATERIAL, 1, STATE_SPECULAR}, SWIZZLE_XYZW}, - {"shininess", {STATE_MATERIAL, 1, STATE_SHININESS}, SWIZZLE_XXXX}, -}; - -static struct gl_builtin_uniform_element gl_LightSource_elements[] = { - {"ambient", {STATE_LIGHT, 0, STATE_AMBIENT}, SWIZZLE_XYZW}, - {"diffuse", {STATE_LIGHT, 0, STATE_DIFFUSE}, SWIZZLE_XYZW}, - {"specular", {STATE_LIGHT, 0, STATE_SPECULAR}, SWIZZLE_XYZW}, - {"position", {STATE_LIGHT, 0, STATE_POSITION}, SWIZZLE_XYZW}, - {"halfVector", {STATE_LIGHT, 0, STATE_HALF_VECTOR}, SWIZZLE_XYZW}, - {"spotDirection", {STATE_LIGHT, 0, STATE_SPOT_DIRECTION}, - MAKE_SWIZZLE4(SWIZZLE_X, - SWIZZLE_Y, - SWIZZLE_Z, - SWIZZLE_Z)}, - {"spotCosCutoff", {STATE_LIGHT, 0, STATE_SPOT_DIRECTION}, SWIZZLE_WWWW}, - {"spotCutoff", {STATE_LIGHT, 0, STATE_SPOT_CUTOFF}, SWIZZLE_XXXX}, - {"spotExponent", {STATE_LIGHT, 0, STATE_ATTENUATION}, SWIZZLE_WWWW}, - {"constantAttenuation", {STATE_LIGHT, 0, STATE_ATTENUATION}, SWIZZLE_XXXX}, - {"linearAttenuation", {STATE_LIGHT, 0, STATE_ATTENUATION}, SWIZZLE_YYYY}, - {"quadraticAttenuation", {STATE_LIGHT, 0, STATE_ATTENUATION}, SWIZZLE_ZZZZ}, -}; - -static struct gl_builtin_uniform_element gl_LightModel_elements[] = { - {"ambient", {STATE_LIGHTMODEL_AMBIENT, 0}, SWIZZLE_XYZW}, -}; - -static struct gl_builtin_uniform_element gl_FrontLightModelProduct_elements[] = { - {"sceneColor", {STATE_LIGHTMODEL_SCENECOLOR, 0}, SWIZZLE_XYZW}, -}; - -static struct gl_builtin_uniform_element gl_BackLightModelProduct_elements[] = { - {"sceneColor", {STATE_LIGHTMODEL_SCENECOLOR, 1}, SWIZZLE_XYZW}, -}; - -static struct gl_builtin_uniform_element gl_FrontLightProduct_elements[] = { - {"ambient", {STATE_LIGHTPROD, 0, 0, STATE_AMBIENT}, SWIZZLE_XYZW}, - {"diffuse", {STATE_LIGHTPROD, 0, 0, STATE_DIFFUSE}, SWIZZLE_XYZW}, - {"specular", {STATE_LIGHTPROD, 0, 0, STATE_SPECULAR}, SWIZZLE_XYZW}, -}; - -static struct gl_builtin_uniform_element gl_BackLightProduct_elements[] = { - {"ambient", {STATE_LIGHTPROD, 0, 1, STATE_AMBIENT}, SWIZZLE_XYZW}, - {"diffuse", {STATE_LIGHTPROD, 0, 1, STATE_DIFFUSE}, SWIZZLE_XYZW}, - {"specular", {STATE_LIGHTPROD, 0, 1, STATE_SPECULAR}, SWIZZLE_XYZW}, -}; - -static struct gl_builtin_uniform_element gl_TextureEnvColor_elements[] = { - {NULL, {STATE_TEXENV_COLOR, 0}, SWIZZLE_XYZW}, -}; - -static struct gl_builtin_uniform_element gl_EyePlaneS_elements[] = { - {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_EYE_S}, SWIZZLE_XYZW}, -}; - -static struct gl_builtin_uniform_element gl_EyePlaneT_elements[] = { - {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_EYE_T}, SWIZZLE_XYZW}, -}; - -static struct gl_builtin_uniform_element gl_EyePlaneR_elements[] = { - {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_EYE_R}, SWIZZLE_XYZW}, -}; - -static struct gl_builtin_uniform_element gl_EyePlaneQ_elements[] = { - {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_EYE_Q}, SWIZZLE_XYZW}, -}; - -static struct gl_builtin_uniform_element gl_ObjectPlaneS_elements[] = { - {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_OBJECT_S}, SWIZZLE_XYZW}, -}; - -static struct gl_builtin_uniform_element gl_ObjectPlaneT_elements[] = { - {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_OBJECT_T}, SWIZZLE_XYZW}, -}; - -static struct gl_builtin_uniform_element gl_ObjectPlaneR_elements[] = { - {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_OBJECT_R}, SWIZZLE_XYZW}, -}; - -static struct gl_builtin_uniform_element gl_ObjectPlaneQ_elements[] = { - {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_OBJECT_Q}, SWIZZLE_XYZW}, -}; - -static struct gl_builtin_uniform_element gl_Fog_elements[] = { - {"color", {STATE_FOG_COLOR}, SWIZZLE_XYZW}, - {"density", {STATE_FOG_PARAMS}, SWIZZLE_XXXX}, - {"start", {STATE_FOG_PARAMS}, SWIZZLE_YYYY}, - {"end", {STATE_FOG_PARAMS}, SWIZZLE_ZZZZ}, - {"scale", {STATE_FOG_PARAMS}, SWIZZLE_WWWW}, -}; - -static struct gl_builtin_uniform_element gl_NormalScale_elements[] = { - {NULL, {STATE_NORMAL_SCALE}, SWIZZLE_XXXX}, -}; - -#define MATRIX(name, statevar, modifier) \ - static struct gl_builtin_uniform_element name ## _elements[] = { \ - { NULL, { statevar, 0, 0, 0, modifier}, SWIZZLE_XYZW }, \ - { NULL, { statevar, 0, 1, 1, modifier}, SWIZZLE_XYZW }, \ - { NULL, { statevar, 0, 2, 2, modifier}, SWIZZLE_XYZW }, \ - { NULL, { statevar, 0, 3, 3, modifier}, SWIZZLE_XYZW }, \ - } - -MATRIX(gl_ModelViewMatrix, - STATE_MODELVIEW_MATRIX, STATE_MATRIX_TRANSPOSE); -MATRIX(gl_ModelViewMatrixInverse, - STATE_MODELVIEW_MATRIX, STATE_MATRIX_INVTRANS); -MATRIX(gl_ModelViewMatrixTranspose, - STATE_MODELVIEW_MATRIX, 0); -MATRIX(gl_ModelViewMatrixInverseTranspose, - STATE_MODELVIEW_MATRIX, STATE_MATRIX_INVERSE); - -MATRIX(gl_ProjectionMatrix, - STATE_PROJECTION_MATRIX, STATE_MATRIX_TRANSPOSE); -MATRIX(gl_ProjectionMatrixInverse, - STATE_PROJECTION_MATRIX, STATE_MATRIX_INVTRANS); -MATRIX(gl_ProjectionMatrixTranspose, - STATE_PROJECTION_MATRIX, 0); -MATRIX(gl_ProjectionMatrixInverseTranspose, - STATE_PROJECTION_MATRIX, STATE_MATRIX_INVERSE); - -MATRIX(gl_ModelViewProjectionMatrix, - STATE_MVP_MATRIX, STATE_MATRIX_TRANSPOSE); -MATRIX(gl_ModelViewProjectionMatrixInverse, - STATE_MVP_MATRIX, STATE_MATRIX_INVTRANS); -MATRIX(gl_ModelViewProjectionMatrixTranspose, - STATE_MVP_MATRIX, 0); -MATRIX(gl_ModelViewProjectionMatrixInverseTranspose, - STATE_MVP_MATRIX, STATE_MATRIX_INVERSE); - -MATRIX(gl_TextureMatrix, - STATE_TEXTURE_MATRIX, STATE_MATRIX_TRANSPOSE); -MATRIX(gl_TextureMatrixInverse, - STATE_TEXTURE_MATRIX, STATE_MATRIX_INVTRANS); -MATRIX(gl_TextureMatrixTranspose, - STATE_TEXTURE_MATRIX, 0); -MATRIX(gl_TextureMatrixInverseTranspose, - STATE_TEXTURE_MATRIX, STATE_MATRIX_INVERSE); - -static struct gl_builtin_uniform_element gl_NormalMatrix_elements[] = { - { NULL, { STATE_MODELVIEW_MATRIX, 0, 0, 0, STATE_MATRIX_INVERSE}, - SWIZZLE_XYZW }, - { NULL, { STATE_MODELVIEW_MATRIX, 0, 1, 1, STATE_MATRIX_INVERSE}, - SWIZZLE_XYZW }, - { NULL, { STATE_MODELVIEW_MATRIX, 0, 2, 2, STATE_MATRIX_INVERSE}, - SWIZZLE_XYZW }, -}; - -#undef MATRIX - -#define STATEVAR(name) {#name, name ## _elements, Elements(name ## _elements)} - -const struct gl_builtin_uniform_desc _mesa_builtin_uniform_desc[] = { - STATEVAR(gl_DepthRange), - STATEVAR(gl_ClipPlane), - STATEVAR(gl_Point), - STATEVAR(gl_FrontMaterial), - STATEVAR(gl_BackMaterial), - STATEVAR(gl_LightSource), - STATEVAR(gl_LightModel), - STATEVAR(gl_FrontLightModelProduct), - STATEVAR(gl_BackLightModelProduct), - STATEVAR(gl_FrontLightProduct), - STATEVAR(gl_BackLightProduct), - STATEVAR(gl_TextureEnvColor), - STATEVAR(gl_EyePlaneS), - STATEVAR(gl_EyePlaneT), - STATEVAR(gl_EyePlaneR), - STATEVAR(gl_EyePlaneQ), - STATEVAR(gl_ObjectPlaneS), - STATEVAR(gl_ObjectPlaneT), - STATEVAR(gl_ObjectPlaneR), - STATEVAR(gl_ObjectPlaneQ), - STATEVAR(gl_Fog), - - STATEVAR(gl_ModelViewMatrix), - STATEVAR(gl_ModelViewMatrixInverse), - STATEVAR(gl_ModelViewMatrixTranspose), - STATEVAR(gl_ModelViewMatrixInverseTranspose), - - STATEVAR(gl_ProjectionMatrix), - STATEVAR(gl_ProjectionMatrixInverse), - STATEVAR(gl_ProjectionMatrixTranspose), - STATEVAR(gl_ProjectionMatrixInverseTranspose), - - STATEVAR(gl_ModelViewProjectionMatrix), - STATEVAR(gl_ModelViewProjectionMatrixInverse), - STATEVAR(gl_ModelViewProjectionMatrixTranspose), - STATEVAR(gl_ModelViewProjectionMatrixInverseTranspose), - - STATEVAR(gl_TextureMatrix), - STATEVAR(gl_TextureMatrixInverse), - STATEVAR(gl_TextureMatrixTranspose), - STATEVAR(gl_TextureMatrixInverseTranspose), - - STATEVAR(gl_NormalMatrix), - STATEVAR(gl_NormalScale), - - {NULL, NULL, 0} -}; - -static GLboolean -is_boolean_type(GLenum type) -{ - switch (type) { - case GL_BOOL: - case GL_BOOL_VEC2: - case GL_BOOL_VEC3: - case GL_BOOL_VEC4: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -static GLboolean -is_sampler_type(GLenum type) -{ - switch (type) { - case GL_SAMPLER_1D: - case GL_SAMPLER_2D: - case GL_SAMPLER_3D: - case GL_SAMPLER_CUBE: - case GL_SAMPLER_1D_SHADOW: - case GL_SAMPLER_2D_SHADOW: - case GL_SAMPLER_2D_RECT_ARB: - case GL_SAMPLER_2D_RECT_SHADOW_ARB: - case GL_SAMPLER_1D_ARRAY_EXT: - case GL_SAMPLER_2D_ARRAY_EXT: - case GL_SAMPLER_1D_ARRAY_SHADOW_EXT: - case GL_SAMPLER_2D_ARRAY_SHADOW_EXT: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -static struct gl_program_parameter * -get_uniform_parameter(const struct gl_shader_program *shProg, GLuint index) -{ - const struct gl_program *prog = NULL; - GLint progPos; - - progPos = shProg->Uniforms->Uniforms[index].VertPos; - if (progPos >= 0) { - prog = &shProg->VertexProgram->Base; - } - else { - progPos = shProg->Uniforms->Uniforms[index].FragPos; - if (progPos >= 0) { - prog = &shProg->FragmentProgram->Base; - } else { - progPos = shProg->Uniforms->Uniforms[index].GeomPos; - if (progPos >= 0) { - prog = &shProg->GeometryProgram->Base; - } - } - } - - if (!prog || progPos < 0) - return NULL; /* should never happen */ - - return &prog->Parameters->Parameters[progPos]; -} - - -/** - * Called by glGetActiveUniform(). - */ -static void -_mesa_get_active_uniform(struct gl_context *ctx, GLuint program, GLuint index, - GLsizei maxLength, GLsizei *length, GLint *size, - GLenum *type, GLchar *nameOut) -{ - const struct gl_shader_program *shProg; - const struct gl_program *prog = NULL; - const struct gl_program_parameter *param; - GLint progPos; - - shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveUniform"); - if (!shProg) - return; - - if (!shProg->Uniforms || index >= shProg->Uniforms->NumUniforms) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveUniform(index)"); - return; - } - - progPos = shProg->Uniforms->Uniforms[index].VertPos; - if (progPos >= 0) { - prog = &shProg->VertexProgram->Base; - } - else { - progPos = shProg->Uniforms->Uniforms[index].FragPos; - if (progPos >= 0) { - prog = &shProg->FragmentProgram->Base; - } else { - progPos = shProg->Uniforms->Uniforms[index].GeomPos; - if (progPos >= 0) { - prog = &shProg->GeometryProgram->Base; - } - } - } - - if (!prog || progPos < 0) - return; /* should never happen */ - - ASSERT(progPos < prog->Parameters->NumParameters); - param = &prog->Parameters->Parameters[progPos]; - - if (nameOut) { - _mesa_copy_string(nameOut, maxLength, length, param->Name); - } - - if (size) { - GLint typeSize = _mesa_sizeof_glsl_type(param->DataType); - if ((GLint) param->Size > typeSize) { - /* This is an array. - * Array elements are placed on vector[4] boundaries so they're - * a multiple of four floats. We round typeSize up to next multiple - * of four to get the right size below. - */ - typeSize = (typeSize + 3) & ~3; - } - /* Note that the returned size is in units of the , not bytes */ - *size = param->Size / typeSize; - } - - if (type) { - *type = param->DataType; - } -} - - -static unsigned -get_vector_elements(GLenum type) -{ - switch (type) { - case GL_FLOAT: - case GL_INT: - case GL_BOOL: - case GL_UNSIGNED_INT: - default: /* Catch all the various sampler types. */ - return 1; - - case GL_FLOAT_VEC2: - case GL_INT_VEC2: - case GL_BOOL_VEC2: - case GL_UNSIGNED_INT_VEC2: - return 2; - - case GL_FLOAT_VEC3: - case GL_INT_VEC3: - case GL_BOOL_VEC3: - case GL_UNSIGNED_INT_VEC3: - return 3; - - case GL_FLOAT_VEC4: - case GL_INT_VEC4: - case GL_BOOL_VEC4: - case GL_UNSIGNED_INT_VEC4: - return 4; - } -} - -static void -get_matrix_dims(GLenum type, GLint *rows, GLint *cols) -{ - switch (type) { - case GL_FLOAT_MAT2: - *rows = *cols = 2; - break; - case GL_FLOAT_MAT2x3: - *rows = 3; - *cols = 2; - break; - case GL_FLOAT_MAT2x4: - *rows = 4; - *cols = 2; - break; - case GL_FLOAT_MAT3: - *rows = 3; - *cols = 3; - break; - case GL_FLOAT_MAT3x2: - *rows = 2; - *cols = 3; - break; - case GL_FLOAT_MAT3x4: - *rows = 4; - *cols = 3; - break; - case GL_FLOAT_MAT4: - *rows = 4; - *cols = 4; - break; - case GL_FLOAT_MAT4x2: - *rows = 2; - *cols = 4; - break; - case GL_FLOAT_MAT4x3: - *rows = 3; - *cols = 4; - break; - default: - *rows = *cols = 0; - } -} - - -/** - * Determine the number of rows and columns occupied by a uniform - * according to its datatype. For non-matrix types (such as GL_FLOAT_VEC4), - * the number of rows = 1 and cols = number of elements in the vector. - */ -static void -get_uniform_rows_cols(const struct gl_program_parameter *p, - GLint *rows, GLint *cols) -{ - get_matrix_dims(p->DataType, rows, cols); - if (*rows == 0 && *cols == 0) { - /* not a matrix type, probably a float or vector */ - *rows = 1; - *cols = get_vector_elements(p->DataType); - } -} - - -/** - * Helper for get_uniform[fi]v() functions. - * Given a shader program name and uniform location, return a pointer - * to the shader program and return the program parameter position. - */ -static void -lookup_uniform_parameter(struct gl_context *ctx, GLuint program, GLint location, - struct gl_program **progOut, GLint *paramPosOut) -{ - struct gl_shader_program *shProg - = _mesa_lookup_shader_program_err(ctx, program, "glGetUniform[if]v"); - struct gl_program *prog = NULL; - GLint progPos = -1; - - /* if shProg is NULL, we'll have already recorded an error */ - - if (shProg) { - if (!shProg->Uniforms || - location < 0 || - location >= (GLint) shProg->Uniforms->NumUniforms) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformfv(location)"); - } - else { - /* OK, find the gl_program and program parameter location */ - progPos = shProg->Uniforms->Uniforms[location].VertPos; - if (progPos >= 0) { - prog = &shProg->VertexProgram->Base; - } - else { - progPos = shProg->Uniforms->Uniforms[location].FragPos; - if (progPos >= 0) { - prog = &shProg->FragmentProgram->Base; - } else { - progPos = shProg->Uniforms->Uniforms[location].GeomPos; - if (progPos >= 0) { - prog = &shProg->GeometryProgram->Base; - } - } - } - } - } - - *progOut = prog; - *paramPosOut = progPos; -} - - -/** - * GLGL uniform arrays and structs require special handling. - * - * The GL_ARB_shader_objects spec says that if you use - * glGetUniformLocation to get the location of an array, you CANNOT - * access other elements of the array by adding an offset to the - * returned location. For example, you must call - * glGetUniformLocation("foo[16]") if you want to set the 16th element - * of the array with glUniform(). - * - * HOWEVER, some other OpenGL drivers allow accessing array elements - * by adding an offset to the returned array location. And some apps - * seem to depend on that behaviour. - * - * Mesa's gl_uniform_list doesn't directly support this since each - * entry in the list describes one uniform variable, not one uniform - * element. We could insert dummy entries in the list for each array - * element after [0] but that causes complications elsewhere. - * - * We solve this problem by encoding two values in the location that's - * returned by glGetUniformLocation(): - * a) index into gl_uniform_list::Uniforms[] for the uniform - * b) an array/field offset (0 for simple types) - * - * These two values are encoded in the high and low halves of a GLint. - * By putting the uniform number in the high part and the offset in the - * low part, we can support the unofficial ability to index into arrays - * by adding offsets to the location value. - */ -static void -merge_location_offset(GLint *location, GLint offset) -{ - *location = (*location << 16) | offset; -} - - -/** - * Separate the uniform location and parameter offset. See above. - */ -static void -split_location_offset(GLint *location, GLint *offset) -{ - *offset = *location & 0xffff; - *location = *location >> 16; -} - - - -/** - * Called via glGetUniformfv(). - */ -static void -_mesa_get_uniformfv(struct gl_context *ctx, GLuint program, GLint location, - GLfloat *params) -{ - struct gl_program *prog; - GLint paramPos; - GLint offset; - - split_location_offset(&location, &offset); - - lookup_uniform_parameter(ctx, program, location, &prog, ¶mPos); - - if (prog) { - const struct gl_program_parameter *p = - &prog->Parameters->Parameters[paramPos]; - GLint rows, cols, i, j, k; - - get_uniform_rows_cols(p, &rows, &cols); - - k = 0; - for (i = 0; i < rows; i++) { - const int base = paramPos + offset + i; - - for (j = 0; j < cols; j++ ) { - params[k++] = prog->Parameters->ParameterValues[base][j]; - } - } - } -} - - -/** - * Called via glGetUniformiv(). - * \sa _mesa_get_uniformfv, only difference is a cast. - */ -static void -_mesa_get_uniformiv(struct gl_context *ctx, GLuint program, GLint location, - GLint *params) -{ - struct gl_program *prog; - GLint paramPos; - GLint offset; - - split_location_offset(&location, &offset); - - lookup_uniform_parameter(ctx, program, location, &prog, ¶mPos); - - if (prog) { - const struct gl_program_parameter *p = - &prog->Parameters->Parameters[paramPos]; - GLint rows, cols, i, j, k; - - get_uniform_rows_cols(p, &rows, &cols); - - k = 0; - for (i = 0; i < rows; i++) { - const int base = paramPos + offset + i; - - for (j = 0; j < cols; j++ ) { - params[k++] = (GLint) prog->Parameters->ParameterValues[base][j]; - } - } - } -} - - -/** - * Called via glGetUniformuiv(). - * New in GL_EXT_gpu_shader4, OpenGL 3.0 - * \sa _mesa_get_uniformfv, only difference is a cast. - */ -static void -_mesa_get_uniformuiv(struct gl_context *ctx, GLuint program, GLint location, - GLuint *params) -{ - struct gl_program *prog; - GLint paramPos; - GLint offset; - - split_location_offset(&location, &offset); - - lookup_uniform_parameter(ctx, program, location, &prog, ¶mPos); - - if (prog) { - const struct gl_program_parameter *p = - &prog->Parameters->Parameters[paramPos]; - GLint rows, cols, i, j, k; - - get_uniform_rows_cols(p, &rows, &cols); - - k = 0; - for (i = 0; i < rows; i++) { - const int base = paramPos + offset + i; - - for (j = 0; j < cols; j++ ) { - params[k++] = (GLuint) prog->Parameters->ParameterValues[base][j]; - } - } - } -} - - -/** - * Called via glGetUniformLocation(). - * - * The return value will encode two values, the uniform location and an - * offset (used for arrays, structs). - */ -GLint -_mesa_get_uniform_location(struct gl_context *ctx, struct gl_shader_program *shProg, - const GLchar *name) -{ - GLint offset = 0, location = -1; - - if (shProg->LinkStatus == GL_FALSE) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformfv(program)"); - return -1; - } - - /* XXX we should return -1 if the uniform was declared, but not - * actually used. - */ - - /* XXX we need to be able to parse uniform names for structs and arrays - * such as: - * mymatrix[1] - * mystruct.field1 - */ - - { - /* handle 1-dimension arrays here... */ - char *c = strchr(name, '['); - if (c) { - /* truncate name at [ */ - const GLint len = c - name; - GLchar *newName = malloc(len + 1); - if (!newName) - return -1; /* out of mem */ - memcpy(newName, name, len); - newName[len] = 0; - - location = _mesa_lookup_uniform(shProg->Uniforms, newName); - if (location >= 0) { - const GLint element = atoi(c + 1); - if (element > 0) { - /* get type of the uniform array element */ - struct gl_program_parameter *p; - p = get_uniform_parameter(shProg, location); - if (p) { - GLint rows, cols; - get_matrix_dims(p->DataType, &rows, &cols); - if (rows < 1) - rows = 1; - offset = element * rows; - } - } - } - - free(newName); - } - } - - if (location < 0) { - location = _mesa_lookup_uniform(shProg->Uniforms, name); - } - - if (location >= 0) { - merge_location_offset(&location, offset); - } - - return location; -} - - - -/** - * Update the vertex/fragment program's TexturesUsed array. - * - * This needs to be called after glUniform(set sampler var) is called. - * A call to glUniform(samplerVar, value) causes a sampler to point to a - * particular texture unit. We know the sampler's texture target - * (1D/2D/3D/etc) from compile time but the sampler's texture unit is - * set by glUniform() calls. - * - * So, scan the program->SamplerUnits[] and program->SamplerTargets[] - * information to update the prog->TexturesUsed[] values. - * Each value of TexturesUsed[unit] is one of zero, TEXTURE_1D_INDEX, - * TEXTURE_2D_INDEX, TEXTURE_3D_INDEX, etc. - * We'll use that info for state validation before rendering. - */ -void -_mesa_update_shader_textures_used(struct gl_program *prog) -{ - GLuint s; - - memset(prog->TexturesUsed, 0, sizeof(prog->TexturesUsed)); - - for (s = 0; s < MAX_SAMPLERS; s++) { - if (prog->SamplersUsed & (1 << s)) { - GLuint unit = prog->SamplerUnits[s]; - GLuint tgt = prog->SamplerTargets[s]; - assert(unit < MAX_TEXTURE_IMAGE_UNITS); - assert(tgt < NUM_TEXTURE_TARGETS); - prog->TexturesUsed[unit] |= (1 << tgt); - } - } -} - - -/** - * Check if the type given by userType is allowed to set a uniform of the - * target type. Generally, equivalence is required, but setting Boolean - * uniforms can be done with glUniformiv or glUniformfv. - */ -static GLboolean -compatible_types(GLenum userType, GLenum targetType) -{ - if (userType == targetType) - return GL_TRUE; - - if (targetType == GL_BOOL && (userType == GL_FLOAT || - userType == GL_UNSIGNED_INT || - userType == GL_INT)) - return GL_TRUE; - - if (targetType == GL_BOOL_VEC2 && (userType == GL_FLOAT_VEC2 || - userType == GL_UNSIGNED_INT_VEC2 || - userType == GL_INT_VEC2)) - return GL_TRUE; - - if (targetType == GL_BOOL_VEC3 && (userType == GL_FLOAT_VEC3 || - userType == GL_UNSIGNED_INT_VEC3 || - userType == GL_INT_VEC3)) - return GL_TRUE; - - if (targetType == GL_BOOL_VEC4 && (userType == GL_FLOAT_VEC4 || - userType == GL_UNSIGNED_INT_VEC4 || - userType == GL_INT_VEC4)) - return GL_TRUE; - - if (is_sampler_type(targetType) && userType == GL_INT) - return GL_TRUE; - - return GL_FALSE; -} - - -/** - * Set the value of a program's uniform variable. - * \param program the program whose uniform to update - * \param index the index of the program parameter for the uniform - * \param offset additional parameter slot offset (for arrays) - * \param type the incoming datatype of 'values' - * \param count the number of uniforms to set - * \param elems number of elements per uniform (1, 2, 3 or 4) - * \param values the new values, of datatype 'type' - */ -static void -set_program_uniform(struct gl_context *ctx, struct gl_program *program, - GLint index, GLint offset, - GLenum type, GLsizei count, GLint elems, - const void *values) -{ - const struct gl_program_parameter *param = - &program->Parameters->Parameters[index]; - - assert(offset >= 0); - assert(elems >= 1); - assert(elems <= 4); - - if (!compatible_types(type, param->DataType)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(type mismatch)"); - return; - } - - if (index + offset > (GLint) program->Parameters->Size) { - /* out of bounds! */ - return; - } - - if (param->Type == PROGRAM_SAMPLER) { - /* This controls which texture unit which is used by a sampler */ - GLboolean changed = GL_FALSE; - GLint i; - - /* this should have been caught by the compatible_types() check */ - ASSERT(type == GL_INT); - - /* loop over number of samplers to change */ - for (i = 0; i < count; i++) { - GLuint sampler = - (GLuint) program->Parameters->ParameterValues[index + offset + i][0]; - GLuint texUnit = ((GLuint *) values)[i]; - - /* check that the sampler (tex unit index) is legal */ - if (texUnit >= ctx->Const.MaxTextureImageUnits) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glUniform1(invalid sampler/tex unit index for '%s')", - param->Name); - return; - } - - /* This maps a sampler to a texture unit: */ - if (sampler < MAX_SAMPLERS) { -#if 0 - printf("Set program %p sampler %d '%s' to unit %u\n", - program, sampler, param->Name, texUnit); -#endif - if (program->SamplerUnits[sampler] != texUnit) { - program->SamplerUnits[sampler] = texUnit; - changed = GL_TRUE; - } - } - } - - if (changed) { - /* When a sampler's value changes it usually requires rewriting - * a GPU program's TEX instructions since there may not be a - * sampler->texture lookup table. We signal this with the - * ProgramStringNotify() callback. - */ - FLUSH_VERTICES(ctx, _NEW_TEXTURE | _NEW_PROGRAM); - _mesa_update_shader_textures_used(program); - /* Do we need to care about the return value here? - * This should not be the first time the driver was notified of - * this program. - */ - (void) ctx->Driver.ProgramStringNotify(ctx, program->Target, program); - } - } - else { - /* ordinary uniform variable */ - const GLboolean isUniformBool = is_boolean_type(param->DataType); - const GLenum basicType = base_uniform_type(type); - const GLint slots = (param->Size + 3) / 4; - const GLint typeSize = _mesa_sizeof_glsl_type(param->DataType); - GLsizei k, i; - - if ((GLint) param->Size > typeSize) { - /* an array */ - /* we'll ignore extra data below */ - } - else { - /* non-array: count must be at most one; count == 0 is handled by the loop below */ - if (count > 1) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glUniform(uniform '%s' is not an array)", - param->Name); - return; - } - } - - /* loop over number of array elements */ - for (k = 0; k < count; k++) { - GLfloat *uniformVal; - - if (offset + k >= slots) { - /* Extra array data is ignored */ - break; - } - - /* uniformVal (the destination) is always float[4] */ - uniformVal = program->Parameters->ParameterValues[index + offset + k]; - - if (basicType == GL_INT) { - /* convert user's ints to floats */ - const GLint *iValues = ((const GLint *) values) + k * elems; - for (i = 0; i < elems; i++) { - uniformVal[i] = (GLfloat) iValues[i]; - } - } - else if (basicType == GL_UNSIGNED_INT) { - /* convert user's uints to floats */ - const GLuint *iValues = ((const GLuint *) values) + k * elems; - for (i = 0; i < elems; i++) { - uniformVal[i] = (GLfloat) iValues[i]; - } - } - else { - const GLfloat *fValues = ((const GLfloat *) values) + k * elems; - assert(basicType == GL_FLOAT); - for (i = 0; i < elems; i++) { - uniformVal[i] = fValues[i]; - } - } - - /* if the uniform is bool-valued, convert to 1.0 or 0.0 */ - if (isUniformBool) { - for (i = 0; i < elems; i++) { - uniformVal[i] = uniformVal[i] ? 1.0f : 0.0f; - } - } - } - } -} - - -/** - * Called via glUniform*() functions. - */ -void -_mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg, - GLint location, GLsizei count, - const GLvoid *values, GLenum type) -{ - struct gl_uniform *uniform; - GLint elems, offset; - - if (!shProg || !shProg->LinkStatus) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(program not linked)"); - return; - } - - if (location == -1) - return; /* The standard specifies this as a no-op */ - - if (location < -1) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(location=%d)", - location); - return; - } - - split_location_offset(&location, &offset); - - if (location < 0 || location >= (GLint) shProg->Uniforms->NumUniforms) { - _mesa_error(ctx, GL_INVALID_VALUE, "glUniform(location=%d)", location); - return; - } - - if (count < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glUniform(count < 0)"); - return; - } - - elems = _mesa_sizeof_glsl_type(type); - - FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS); - - uniform = &shProg->Uniforms->Uniforms[location]; - - if (ctx->Shader.Flags & GLSL_UNIFORMS) { - const GLenum basicType = base_uniform_type(type); - GLint i; - printf("Mesa: set program %u uniform %s (loc %d) to: ", - shProg->Name, uniform->Name, location); - if (basicType == GL_INT) { - const GLint *v = (const GLint *) values; - for (i = 0; i < count * elems; i++) { - printf("%d ", v[i]); - } - } - else if (basicType == GL_UNSIGNED_INT) { - const GLuint *v = (const GLuint *) values; - for (i = 0; i < count * elems; i++) { - printf("%u ", v[i]); - } - } - else { - const GLfloat *v = (const GLfloat *) values; - assert(basicType == GL_FLOAT); - for (i = 0; i < count * elems; i++) { - printf("%g ", v[i]); - } - } - printf("\n"); - } - - /* A uniform var may be used by both a vertex shader and a fragment - * shader. We may need to update one or both shader's uniform here: - */ - if (shProg->VertexProgram) { - /* convert uniform location to program parameter index */ - GLint index = uniform->VertPos; - if (index >= 0) { - set_program_uniform(ctx, &shProg->VertexProgram->Base, - index, offset, type, count, elems, values); - } - } - - if (shProg->FragmentProgram) { - /* convert uniform location to program parameter index */ - GLint index = uniform->FragPos; - if (index >= 0) { - set_program_uniform(ctx, &shProg->FragmentProgram->Base, - index, offset, type, count, elems, values); - } - } - - if (shProg->GeometryProgram) { - /* convert uniform location to program parameter index */ - GLint index = uniform->GeomPos; - if (index >= 0) { - set_program_uniform(ctx, &shProg->GeometryProgram->Base, - index, offset, type, count, elems, values); - } - } - - uniform->Initialized = GL_TRUE; -} - - -/** - * Set a matrix-valued program parameter. - */ -static void -set_program_uniform_matrix(struct gl_context *ctx, struct gl_program *program, - GLuint index, GLuint offset, - GLuint count, GLuint rows, GLuint cols, - GLboolean transpose, const GLfloat *values) -{ - GLuint mat, row, col; - GLuint src = 0; - const struct gl_program_parameter * param = &program->Parameters->Parameters[index]; - const GLuint slots = (param->Size + 3) / 4; - const GLint typeSize = _mesa_sizeof_glsl_type(param->DataType); - GLint nr, nc; - - /* check that the number of rows, columns is correct */ - get_matrix_dims(param->DataType, &nr, &nc); - if (rows != nr || cols != nc) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glUniformMatrix(matrix size mismatch)"); - return; - } - - if ((GLint) param->Size <= typeSize) { - /* non-array: count must be at most one; count == 0 is handled by the loop below */ - if (count > 1) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glUniformMatrix(uniform is not an array)"); - return; - } - } - - /* - * Note: the _columns_ of a matrix are stored in program registers, not - * the rows. So, the loops below look a little funny. - * XXX could optimize this a bit... - */ - - /* loop over matrices */ - for (mat = 0; mat < count; mat++) { - - /* each matrix: */ - for (col = 0; col < cols; col++) { - GLfloat *v; - if (offset >= slots) { - /* Ignore writes beyond the end of (the used part of) an array */ - return; - } - v = program->Parameters->ParameterValues[index + offset]; - for (row = 0; row < rows; row++) { - if (transpose) { - v[row] = values[src + row * cols + col]; - } - else { - v[row] = values[src + col * rows + row]; - } - } - - offset++; - } - - src += rows * cols; /* next matrix */ - } -} - - -/** - * Called by glUniformMatrix*() functions. - * Note: cols=2, rows=4 ==> array[2] of vec4 - */ -void -_mesa_uniform_matrix(struct gl_context *ctx, struct gl_shader_program *shProg, - GLint cols, GLint rows, - GLint location, GLsizei count, - GLboolean transpose, const GLfloat *values) -{ - struct gl_uniform *uniform; - GLint offset; - - if (!shProg || !shProg->LinkStatus) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glUniformMatrix(program not linked)"); - return; - } - - if (location == -1) - return; /* The standard specifies this as a no-op */ - - if (location < -1) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glUniformMatrix(location)"); - return; - } - - split_location_offset(&location, &offset); - - if (location < 0 || location >= (GLint) shProg->Uniforms->NumUniforms) { - _mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix(location)"); - return; - } - if (values == NULL) { - _mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS); - - uniform = &shProg->Uniforms->Uniforms[location]; - - if (shProg->VertexProgram) { - /* convert uniform location to program parameter index */ - GLint index = uniform->VertPos; - if (index >= 0) { - set_program_uniform_matrix(ctx, &shProg->VertexProgram->Base, - index, offset, - count, rows, cols, transpose, values); - } - } - - if (shProg->FragmentProgram) { - /* convert uniform location to program parameter index */ - GLint index = uniform->FragPos; - if (index >= 0) { - set_program_uniform_matrix(ctx, &shProg->FragmentProgram->Base, - index, offset, - count, rows, cols, transpose, values); - } - } - - if (shProg->GeometryProgram) { - /* convert uniform location to program parameter index */ - GLint index = uniform->GeomPos; - if (index >= 0) { - set_program_uniform_matrix(ctx, &shProg->GeometryProgram->Base, - index, offset, - count, rows, cols, transpose, values); - } - } - - uniform->Initialized = GL_TRUE; -} - - -void GLAPIENTRY -_mesa_Uniform1fARB(GLint location, GLfloat v0) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_FLOAT); -} - -void GLAPIENTRY -_mesa_Uniform2fARB(GLint location, GLfloat v0, GLfloat v1) -{ - GET_CURRENT_CONTEXT(ctx); - GLfloat v[2]; - v[0] = v0; - v[1] = v1; - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC2); -} - -void GLAPIENTRY -_mesa_Uniform3fARB(GLint location, GLfloat v0, GLfloat v1, GLfloat v2) -{ - GET_CURRENT_CONTEXT(ctx); - GLfloat v[3]; - v[0] = v0; - v[1] = v1; - v[2] = v2; - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC3); -} - -void GLAPIENTRY -_mesa_Uniform4fARB(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, - GLfloat v3) -{ - GET_CURRENT_CONTEXT(ctx); - GLfloat v[4]; - v[0] = v0; - v[1] = v1; - v[2] = v2; - v[3] = v3; - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC4); -} - -void GLAPIENTRY -_mesa_Uniform1iARB(GLint location, GLint v0) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_INT); -} - -void GLAPIENTRY -_mesa_Uniform2iARB(GLint location, GLint v0, GLint v1) -{ - GET_CURRENT_CONTEXT(ctx); - GLint v[2]; - v[0] = v0; - v[1] = v1; - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC2); -} - -void GLAPIENTRY -_mesa_Uniform3iARB(GLint location, GLint v0, GLint v1, GLint v2) -{ - GET_CURRENT_CONTEXT(ctx); - GLint v[3]; - v[0] = v0; - v[1] = v1; - v[2] = v2; - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC3); -} - -void GLAPIENTRY -_mesa_Uniform4iARB(GLint location, GLint v0, GLint v1, GLint v2, GLint v3) -{ - GET_CURRENT_CONTEXT(ctx); - GLint v[4]; - v[0] = v0; - v[1] = v1; - v[2] = v2; - v[3] = v3; - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC4); -} - -void GLAPIENTRY -_mesa_Uniform1fvARB(GLint location, GLsizei count, const GLfloat * value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT); -} - -void GLAPIENTRY -_mesa_Uniform2fvARB(GLint location, GLsizei count, const GLfloat * value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC2); -} - -void GLAPIENTRY -_mesa_Uniform3fvARB(GLint location, GLsizei count, const GLfloat * value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC3); -} - -void GLAPIENTRY -_mesa_Uniform4fvARB(GLint location, GLsizei count, const GLfloat * value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC4); -} - -void GLAPIENTRY -_mesa_Uniform1ivARB(GLint location, GLsizei count, const GLint * value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT); -} - -void GLAPIENTRY -_mesa_Uniform2ivARB(GLint location, GLsizei count, const GLint * value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC2); -} - -void GLAPIENTRY -_mesa_Uniform3ivARB(GLint location, GLsizei count, const GLint * value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC3); -} - -void GLAPIENTRY -_mesa_Uniform4ivARB(GLint location, GLsizei count, const GLint * value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC4); -} - - -/** OpenGL 3.0 GLuint-valued functions **/ -void GLAPIENTRY -_mesa_Uniform1ui(GLint location, GLuint v0) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_UNSIGNED_INT); -} - -void GLAPIENTRY -_mesa_Uniform2ui(GLint location, GLuint v0, GLuint v1) -{ - GET_CURRENT_CONTEXT(ctx); - GLuint v[2]; - v[0] = v0; - v[1] = v1; - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC2); -} - -void GLAPIENTRY -_mesa_Uniform3ui(GLint location, GLuint v0, GLuint v1, GLuint v2) -{ - GET_CURRENT_CONTEXT(ctx); - GLuint v[3]; - v[0] = v0; - v[1] = v1; - v[2] = v2; - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC3); -} - -void GLAPIENTRY -_mesa_Uniform4ui(GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3) -{ - GET_CURRENT_CONTEXT(ctx); - GLuint v[4]; - v[0] = v0; - v[1] = v1; - v[2] = v2; - v[3] = v3; - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC4); -} - -void GLAPIENTRY -_mesa_Uniform1uiv(GLint location, GLsizei count, const GLuint *value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT); -} - -void GLAPIENTRY -_mesa_Uniform2uiv(GLint location, GLsizei count, const GLuint *value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC2); -} - -void GLAPIENTRY -_mesa_Uniform3uiv(GLint location, GLsizei count, const GLuint *value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC3); -} - -void GLAPIENTRY -_mesa_Uniform4uiv(GLint location, GLsizei count, const GLuint *value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC4); -} - - - -void GLAPIENTRY -_mesa_UniformMatrix2fvARB(GLint location, GLsizei count, GLboolean transpose, - const GLfloat * value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, - 2, 2, location, count, transpose, value); -} - -void GLAPIENTRY -_mesa_UniformMatrix3fvARB(GLint location, GLsizei count, GLboolean transpose, - const GLfloat * value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, - 3, 3, location, count, transpose, value); -} - -void GLAPIENTRY -_mesa_UniformMatrix4fvARB(GLint location, GLsizei count, GLboolean transpose, - const GLfloat * value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, - 4, 4, location, count, transpose, value); -} - - -/** - * Non-square UniformMatrix are OpenGL 2.1 - */ -void GLAPIENTRY -_mesa_UniformMatrix2x3fv(GLint location, GLsizei count, GLboolean transpose, - const GLfloat *value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, - 2, 3, location, count, transpose, value); -} - -void GLAPIENTRY -_mesa_UniformMatrix3x2fv(GLint location, GLsizei count, GLboolean transpose, - const GLfloat *value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, - 3, 2, location, count, transpose, value); -} - -void GLAPIENTRY -_mesa_UniformMatrix2x4fv(GLint location, GLsizei count, GLboolean transpose, - const GLfloat *value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, - 2, 4, location, count, transpose, value); -} - -void GLAPIENTRY -_mesa_UniformMatrix4x2fv(GLint location, GLsizei count, GLboolean transpose, - const GLfloat *value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, - 4, 2, location, count, transpose, value); -} - -void GLAPIENTRY -_mesa_UniformMatrix3x4fv(GLint location, GLsizei count, GLboolean transpose, - const GLfloat *value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, - 3, 4, location, count, transpose, value); -} - -void GLAPIENTRY -_mesa_UniformMatrix4x3fv(GLint location, GLsizei count, GLboolean transpose, - const GLfloat *value) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, - 4, 3, location, count, transpose, value); -} - - -void GLAPIENTRY -_mesa_GetUniformfvARB(GLhandleARB program, GLint location, GLfloat *params) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_get_uniformfv(ctx, program, location, params); -} - - -void GLAPIENTRY -_mesa_GetUniformivARB(GLhandleARB program, GLint location, GLint *params) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_get_uniformiv(ctx, program, location, params); -} - - -/* GL3 */ -void GLAPIENTRY -_mesa_GetUniformuiv(GLhandleARB program, GLint location, GLuint *params) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_get_uniformuiv(ctx, program, location, params); -} - - - -GLint GLAPIENTRY -_mesa_GetUniformLocationARB(GLhandleARB programObj, const GLcharARB *name) -{ - struct gl_shader_program *shProg; - - GET_CURRENT_CONTEXT(ctx); - - shProg = _mesa_lookup_shader_program_err(ctx, programObj, - "glGetUniformLocation"); - if (!shProg) - return -1; - - return _mesa_get_uniform_location(ctx, shProg, name); -} - - -void GLAPIENTRY -_mesa_GetActiveUniformARB(GLhandleARB program, GLuint index, - GLsizei maxLength, GLsizei * length, GLint * size, - GLenum * type, GLcharARB * name) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_get_active_uniform(ctx, program, index, maxLength, length, size, - type, name); -} - - -/** - * Plug in shader uniform-related functions into API dispatch table. - */ -void -_mesa_init_shader_uniform_dispatch(struct _glapi_table *exec) -{ -#if FEATURE_GL - SET_Uniform1fARB(exec, _mesa_Uniform1fARB); - SET_Uniform2fARB(exec, _mesa_Uniform2fARB); - SET_Uniform3fARB(exec, _mesa_Uniform3fARB); - SET_Uniform4fARB(exec, _mesa_Uniform4fARB); - SET_Uniform1iARB(exec, _mesa_Uniform1iARB); - SET_Uniform2iARB(exec, _mesa_Uniform2iARB); - SET_Uniform3iARB(exec, _mesa_Uniform3iARB); - SET_Uniform4iARB(exec, _mesa_Uniform4iARB); - SET_Uniform1fvARB(exec, _mesa_Uniform1fvARB); - SET_Uniform2fvARB(exec, _mesa_Uniform2fvARB); - SET_Uniform3fvARB(exec, _mesa_Uniform3fvARB); - SET_Uniform4fvARB(exec, _mesa_Uniform4fvARB); - SET_Uniform1ivARB(exec, _mesa_Uniform1ivARB); - SET_Uniform2ivARB(exec, _mesa_Uniform2ivARB); - SET_Uniform3ivARB(exec, _mesa_Uniform3ivARB); - SET_Uniform4ivARB(exec, _mesa_Uniform4ivARB); - SET_UniformMatrix2fvARB(exec, _mesa_UniformMatrix2fvARB); - SET_UniformMatrix3fvARB(exec, _mesa_UniformMatrix3fvARB); - SET_UniformMatrix4fvARB(exec, _mesa_UniformMatrix4fvARB); - - SET_GetActiveUniformARB(exec, _mesa_GetActiveUniformARB); - SET_GetUniformLocationARB(exec, _mesa_GetUniformLocationARB); - SET_GetUniformfvARB(exec, _mesa_GetUniformfvARB); - SET_GetUniformivARB(exec, _mesa_GetUniformivARB); - - /* OpenGL 2.1 */ - SET_UniformMatrix2x3fv(exec, _mesa_UniformMatrix2x3fv); - SET_UniformMatrix3x2fv(exec, _mesa_UniformMatrix3x2fv); - SET_UniformMatrix2x4fv(exec, _mesa_UniformMatrix2x4fv); - SET_UniformMatrix4x2fv(exec, _mesa_UniformMatrix4x2fv); - SET_UniformMatrix3x4fv(exec, _mesa_UniformMatrix3x4fv); - SET_UniformMatrix4x3fv(exec, _mesa_UniformMatrix4x3fv); - - /* OpenGL 3.0 */ - /* XXX finish dispatch */ - SET_Uniform1uiEXT(exec, _mesa_Uniform1ui); - SET_Uniform2uiEXT(exec, _mesa_Uniform2ui); - SET_Uniform3uiEXT(exec, _mesa_Uniform3ui); - SET_Uniform4uiEXT(exec, _mesa_Uniform4ui); - SET_Uniform1uivEXT(exec, _mesa_Uniform1uiv); - SET_Uniform2uivEXT(exec, _mesa_Uniform2uiv); - SET_Uniform3uivEXT(exec, _mesa_Uniform3uiv); - SET_Uniform4uivEXT(exec, _mesa_Uniform4uiv); - SET_GetUniformuivEXT(exec, _mesa_GetUniformuiv); - - -#endif /* FEATURE_GL */ -} +/* + * Mesa 3-D graphics library + * + * Copyright (C) 2004-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009-2010 VMware, Inc. All Rights Reserved. + * Copyright © 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file uniforms.c + * Functions related to GLSL uniform variables. + * \author Brian Paul + */ + +/** + * XXX things to do: + * 1. Check that the right error code is generated for all _mesa_error() calls. + * 2. Insert FLUSH_VERTICES calls in various places + */ + + +#include "main/glheader.h" +#include "main/context.h" +#include "main/dispatch.h" +#include "main/mfeatures.h" +#include "main/mtypes.h" +#include "main/shaderapi.h" +#include "main/shaderobj.h" +#include "main/uniforms.h" +#include "program/prog_parameter.h" +#include "program/prog_statevars.h" +#include "program/prog_uniform.h" +#include "program/prog_instruction.h" + + +static GLenum +base_uniform_type(GLenum type) +{ + switch (type) { +#if 0 /* not needed, for now */ + case GL_BOOL: + case GL_BOOL_VEC2: + case GL_BOOL_VEC3: + case GL_BOOL_VEC4: + return GL_BOOL; +#endif + case GL_FLOAT: + case GL_FLOAT_VEC2: + case GL_FLOAT_VEC3: + case GL_FLOAT_VEC4: + return GL_FLOAT; + case GL_UNSIGNED_INT: + case GL_UNSIGNED_INT_VEC2: + case GL_UNSIGNED_INT_VEC3: + case GL_UNSIGNED_INT_VEC4: + return GL_UNSIGNED_INT; + case GL_INT: + case GL_INT_VEC2: + case GL_INT_VEC3: + case GL_INT_VEC4: + return GL_INT; + default: + _mesa_problem(NULL, "Invalid type in base_uniform_type()"); + return GL_FLOAT; + } +} + +static struct gl_builtin_uniform_element gl_DepthRange_elements[] = { + {"near", {STATE_DEPTH_RANGE, 0, 0}, SWIZZLE_XXXX}, + {"far", {STATE_DEPTH_RANGE, 0, 0}, SWIZZLE_YYYY}, + {"diff", {STATE_DEPTH_RANGE, 0, 0}, SWIZZLE_ZZZZ}, +}; + +static struct gl_builtin_uniform_element gl_ClipPlane_elements[] = { + {NULL, {STATE_CLIPPLANE, 0, 0}, SWIZZLE_XYZW} +}; + +static struct gl_builtin_uniform_element gl_Point_elements[] = { + {"size", {STATE_POINT_SIZE}, SWIZZLE_XXXX}, + {"sizeMin", {STATE_POINT_SIZE}, SWIZZLE_YYYY}, + {"sizeMax", {STATE_POINT_SIZE}, SWIZZLE_ZZZZ}, + {"fadeThresholdSize", {STATE_POINT_SIZE}, SWIZZLE_WWWW}, + {"distanceConstantAttenuation", {STATE_POINT_ATTENUATION}, SWIZZLE_XXXX}, + {"distanceLinearAttenuation", {STATE_POINT_ATTENUATION}, SWIZZLE_YYYY}, + {"distanceQuadraticAttenuation", {STATE_POINT_ATTENUATION}, SWIZZLE_ZZZZ}, +}; + +static struct gl_builtin_uniform_element gl_FrontMaterial_elements[] = { + {"emission", {STATE_MATERIAL, 0, STATE_EMISSION}, SWIZZLE_XYZW}, + {"ambient", {STATE_MATERIAL, 0, STATE_AMBIENT}, SWIZZLE_XYZW}, + {"diffuse", {STATE_MATERIAL, 0, STATE_DIFFUSE}, SWIZZLE_XYZW}, + {"specular", {STATE_MATERIAL, 0, STATE_SPECULAR}, SWIZZLE_XYZW}, + {"shininess", {STATE_MATERIAL, 0, STATE_SHININESS}, SWIZZLE_XXXX}, +}; + +static struct gl_builtin_uniform_element gl_BackMaterial_elements[] = { + {"emission", {STATE_MATERIAL, 1, STATE_EMISSION}, SWIZZLE_XYZW}, + {"ambient", {STATE_MATERIAL, 1, STATE_AMBIENT}, SWIZZLE_XYZW}, + {"diffuse", {STATE_MATERIAL, 1, STATE_DIFFUSE}, SWIZZLE_XYZW}, + {"specular", {STATE_MATERIAL, 1, STATE_SPECULAR}, SWIZZLE_XYZW}, + {"shininess", {STATE_MATERIAL, 1, STATE_SHININESS}, SWIZZLE_XXXX}, +}; + +static struct gl_builtin_uniform_element gl_LightSource_elements[] = { + {"ambient", {STATE_LIGHT, 0, STATE_AMBIENT}, SWIZZLE_XYZW}, + {"diffuse", {STATE_LIGHT, 0, STATE_DIFFUSE}, SWIZZLE_XYZW}, + {"specular", {STATE_LIGHT, 0, STATE_SPECULAR}, SWIZZLE_XYZW}, + {"position", {STATE_LIGHT, 0, STATE_POSITION}, SWIZZLE_XYZW}, + {"halfVector", {STATE_LIGHT, 0, STATE_HALF_VECTOR}, SWIZZLE_XYZW}, + {"spotDirection", {STATE_LIGHT, 0, STATE_SPOT_DIRECTION}, + MAKE_SWIZZLE4(SWIZZLE_X, + SWIZZLE_Y, + SWIZZLE_Z, + SWIZZLE_Z)}, + {"spotCosCutoff", {STATE_LIGHT, 0, STATE_SPOT_DIRECTION}, SWIZZLE_WWWW}, + {"spotCutoff", {STATE_LIGHT, 0, STATE_SPOT_CUTOFF}, SWIZZLE_XXXX}, + {"spotExponent", {STATE_LIGHT, 0, STATE_ATTENUATION}, SWIZZLE_WWWW}, + {"constantAttenuation", {STATE_LIGHT, 0, STATE_ATTENUATION}, SWIZZLE_XXXX}, + {"linearAttenuation", {STATE_LIGHT, 0, STATE_ATTENUATION}, SWIZZLE_YYYY}, + {"quadraticAttenuation", {STATE_LIGHT, 0, STATE_ATTENUATION}, SWIZZLE_ZZZZ}, +}; + +static struct gl_builtin_uniform_element gl_LightModel_elements[] = { + {"ambient", {STATE_LIGHTMODEL_AMBIENT, 0}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_FrontLightModelProduct_elements[] = { + {"sceneColor", {STATE_LIGHTMODEL_SCENECOLOR, 0}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_BackLightModelProduct_elements[] = { + {"sceneColor", {STATE_LIGHTMODEL_SCENECOLOR, 1}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_FrontLightProduct_elements[] = { + {"ambient", {STATE_LIGHTPROD, 0, 0, STATE_AMBIENT}, SWIZZLE_XYZW}, + {"diffuse", {STATE_LIGHTPROD, 0, 0, STATE_DIFFUSE}, SWIZZLE_XYZW}, + {"specular", {STATE_LIGHTPROD, 0, 0, STATE_SPECULAR}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_BackLightProduct_elements[] = { + {"ambient", {STATE_LIGHTPROD, 0, 1, STATE_AMBIENT}, SWIZZLE_XYZW}, + {"diffuse", {STATE_LIGHTPROD, 0, 1, STATE_DIFFUSE}, SWIZZLE_XYZW}, + {"specular", {STATE_LIGHTPROD, 0, 1, STATE_SPECULAR}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_TextureEnvColor_elements[] = { + {NULL, {STATE_TEXENV_COLOR, 0}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_EyePlaneS_elements[] = { + {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_EYE_S}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_EyePlaneT_elements[] = { + {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_EYE_T}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_EyePlaneR_elements[] = { + {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_EYE_R}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_EyePlaneQ_elements[] = { + {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_EYE_Q}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_ObjectPlaneS_elements[] = { + {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_OBJECT_S}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_ObjectPlaneT_elements[] = { + {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_OBJECT_T}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_ObjectPlaneR_elements[] = { + {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_OBJECT_R}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_ObjectPlaneQ_elements[] = { + {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_OBJECT_Q}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_Fog_elements[] = { + {"color", {STATE_FOG_COLOR}, SWIZZLE_XYZW}, + {"density", {STATE_FOG_PARAMS}, SWIZZLE_XXXX}, + {"start", {STATE_FOG_PARAMS}, SWIZZLE_YYYY}, + {"end", {STATE_FOG_PARAMS}, SWIZZLE_ZZZZ}, + {"scale", {STATE_FOG_PARAMS}, SWIZZLE_WWWW}, +}; + +static struct gl_builtin_uniform_element gl_NormalScale_elements[] = { + {NULL, {STATE_NORMAL_SCALE}, SWIZZLE_XXXX}, +}; + +static struct gl_builtin_uniform_element gl_MESABumpRotMatrix0_elements[] = { + {NULL, {STATE_INTERNAL, STATE_ROT_MATRIX_0}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_MESABumpRotMatrix1_elements[] = { + {NULL, {STATE_INTERNAL, STATE_ROT_MATRIX_1}, SWIZZLE_XYZW}, +}; + +static struct gl_builtin_uniform_element gl_MESAFogParamsOptimized_elements[] = { + {NULL, {STATE_INTERNAL, STATE_FOG_PARAMS_OPTIMIZED}, SWIZZLE_XYZW}, +}; + +#define MATRIX(name, statevar, modifier) \ + static struct gl_builtin_uniform_element name ## _elements[] = { \ + { NULL, { statevar, 0, 0, 0, modifier}, SWIZZLE_XYZW }, \ + { NULL, { statevar, 0, 1, 1, modifier}, SWIZZLE_XYZW }, \ + { NULL, { statevar, 0, 2, 2, modifier}, SWIZZLE_XYZW }, \ + { NULL, { statevar, 0, 3, 3, modifier}, SWIZZLE_XYZW }, \ + } + +MATRIX(gl_ModelViewMatrix, + STATE_MODELVIEW_MATRIX, STATE_MATRIX_TRANSPOSE); +MATRIX(gl_ModelViewMatrixInverse, + STATE_MODELVIEW_MATRIX, STATE_MATRIX_INVTRANS); +MATRIX(gl_ModelViewMatrixTranspose, + STATE_MODELVIEW_MATRIX, 0); +MATRIX(gl_ModelViewMatrixInverseTranspose, + STATE_MODELVIEW_MATRIX, STATE_MATRIX_INVERSE); + +MATRIX(gl_ProjectionMatrix, + STATE_PROJECTION_MATRIX, STATE_MATRIX_TRANSPOSE); +MATRIX(gl_ProjectionMatrixInverse, + STATE_PROJECTION_MATRIX, STATE_MATRIX_INVTRANS); +MATRIX(gl_ProjectionMatrixTranspose, + STATE_PROJECTION_MATRIX, 0); +MATRIX(gl_ProjectionMatrixInverseTranspose, + STATE_PROJECTION_MATRIX, STATE_MATRIX_INVERSE); + +MATRIX(gl_ModelViewProjectionMatrix, + STATE_MVP_MATRIX, STATE_MATRIX_TRANSPOSE); +MATRIX(gl_ModelViewProjectionMatrixInverse, + STATE_MVP_MATRIX, STATE_MATRIX_INVTRANS); +MATRIX(gl_ModelViewProjectionMatrixTranspose, + STATE_MVP_MATRIX, 0); +MATRIX(gl_ModelViewProjectionMatrixInverseTranspose, + STATE_MVP_MATRIX, STATE_MATRIX_INVERSE); + +MATRIX(gl_TextureMatrix, + STATE_TEXTURE_MATRIX, STATE_MATRIX_TRANSPOSE); +MATRIX(gl_TextureMatrixInverse, + STATE_TEXTURE_MATRIX, STATE_MATRIX_INVTRANS); +MATRIX(gl_TextureMatrixTranspose, + STATE_TEXTURE_MATRIX, 0); +MATRIX(gl_TextureMatrixInverseTranspose, + STATE_TEXTURE_MATRIX, STATE_MATRIX_INVERSE); + +static struct gl_builtin_uniform_element gl_NormalMatrix_elements[] = { + { NULL, { STATE_MODELVIEW_MATRIX, 0, 0, 0, STATE_MATRIX_INVERSE}, + SWIZZLE_XYZW }, + { NULL, { STATE_MODELVIEW_MATRIX, 0, 1, 1, STATE_MATRIX_INVERSE}, + SWIZZLE_XYZW }, + { NULL, { STATE_MODELVIEW_MATRIX, 0, 2, 2, STATE_MATRIX_INVERSE}, + SWIZZLE_XYZW }, +}; + +#undef MATRIX + +#define STATEVAR(name) {#name, name ## _elements, Elements(name ## _elements)} + +const struct gl_builtin_uniform_desc _mesa_builtin_uniform_desc[] = { + STATEVAR(gl_DepthRange), + STATEVAR(gl_ClipPlane), + STATEVAR(gl_Point), + STATEVAR(gl_FrontMaterial), + STATEVAR(gl_BackMaterial), + STATEVAR(gl_LightSource), + STATEVAR(gl_LightModel), + STATEVAR(gl_FrontLightModelProduct), + STATEVAR(gl_BackLightModelProduct), + STATEVAR(gl_FrontLightProduct), + STATEVAR(gl_BackLightProduct), + STATEVAR(gl_TextureEnvColor), + STATEVAR(gl_EyePlaneS), + STATEVAR(gl_EyePlaneT), + STATEVAR(gl_EyePlaneR), + STATEVAR(gl_EyePlaneQ), + STATEVAR(gl_ObjectPlaneS), + STATEVAR(gl_ObjectPlaneT), + STATEVAR(gl_ObjectPlaneR), + STATEVAR(gl_ObjectPlaneQ), + STATEVAR(gl_Fog), + + STATEVAR(gl_ModelViewMatrix), + STATEVAR(gl_ModelViewMatrixInverse), + STATEVAR(gl_ModelViewMatrixTranspose), + STATEVAR(gl_ModelViewMatrixInverseTranspose), + + STATEVAR(gl_ProjectionMatrix), + STATEVAR(gl_ProjectionMatrixInverse), + STATEVAR(gl_ProjectionMatrixTranspose), + STATEVAR(gl_ProjectionMatrixInverseTranspose), + + STATEVAR(gl_ModelViewProjectionMatrix), + STATEVAR(gl_ModelViewProjectionMatrixInverse), + STATEVAR(gl_ModelViewProjectionMatrixTranspose), + STATEVAR(gl_ModelViewProjectionMatrixInverseTranspose), + + STATEVAR(gl_TextureMatrix), + STATEVAR(gl_TextureMatrixInverse), + STATEVAR(gl_TextureMatrixTranspose), + STATEVAR(gl_TextureMatrixInverseTranspose), + + STATEVAR(gl_NormalMatrix), + STATEVAR(gl_NormalScale), + + STATEVAR(gl_MESABumpRotMatrix0), + STATEVAR(gl_MESABumpRotMatrix1), + STATEVAR(gl_MESAFogParamsOptimized), + + {NULL, NULL, 0} +}; + +static GLboolean +is_boolean_type(GLenum type) +{ + switch (type) { + case GL_BOOL: + case GL_BOOL_VEC2: + case GL_BOOL_VEC3: + case GL_BOOL_VEC4: + return GL_TRUE; + default: + return GL_FALSE; + } +} + + +static GLboolean +is_sampler_type(GLenum type) +{ + switch (type) { + case GL_SAMPLER_1D: + case GL_SAMPLER_2D: + case GL_SAMPLER_3D: + case GL_SAMPLER_CUBE: + case GL_SAMPLER_1D_SHADOW: + case GL_SAMPLER_2D_SHADOW: + case GL_SAMPLER_2D_RECT_ARB: + case GL_SAMPLER_2D_RECT_SHADOW_ARB: + case GL_SAMPLER_1D_ARRAY_EXT: + case GL_SAMPLER_2D_ARRAY_EXT: + case GL_SAMPLER_1D_ARRAY_SHADOW_EXT: + case GL_SAMPLER_2D_ARRAY_SHADOW_EXT: + return GL_TRUE; + default: + return GL_FALSE; + } +} + + +static struct gl_program_parameter * +get_uniform_parameter(const struct gl_shader_program *shProg, GLuint index) +{ + const struct gl_program *prog = NULL; + GLint progPos; + + progPos = shProg->Uniforms->Uniforms[index].VertPos; + if (progPos >= 0) { + prog = &shProg->VertexProgram->Base; + } + else { + progPos = shProg->Uniforms->Uniforms[index].FragPos; + if (progPos >= 0) { + prog = &shProg->FragmentProgram->Base; + } else { + progPos = shProg->Uniforms->Uniforms[index].GeomPos; + if (progPos >= 0) { + prog = &shProg->GeometryProgram->Base; + } + } + } + + if (!prog || progPos < 0) + return NULL; /* should never happen */ + + return &prog->Parameters->Parameters[progPos]; +} + + +/** + * Called by glGetActiveUniform(). + */ +static void +_mesa_get_active_uniform(struct gl_context *ctx, GLuint program, GLuint index, + GLsizei maxLength, GLsizei *length, GLint *size, + GLenum *type, GLchar *nameOut) +{ + const struct gl_shader_program *shProg; + const struct gl_program *prog = NULL; + const struct gl_program_parameter *param; + GLint progPos; + + shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveUniform"); + if (!shProg) + return; + + if (!shProg->Uniforms || index >= shProg->Uniforms->NumUniforms) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveUniform(index)"); + return; + } + + progPos = shProg->Uniforms->Uniforms[index].VertPos; + if (progPos >= 0) { + prog = &shProg->VertexProgram->Base; + } + else { + progPos = shProg->Uniforms->Uniforms[index].FragPos; + if (progPos >= 0) { + prog = &shProg->FragmentProgram->Base; + } else { + progPos = shProg->Uniforms->Uniforms[index].GeomPos; + if (progPos >= 0) { + prog = &shProg->GeometryProgram->Base; + } + } + } + + if (!prog || progPos < 0) + return; /* should never happen */ + + ASSERT(progPos < prog->Parameters->NumParameters); + param = &prog->Parameters->Parameters[progPos]; + + if (nameOut) { + _mesa_copy_string(nameOut, maxLength, length, param->Name); + } + + if (size) { + GLint typeSize = _mesa_sizeof_glsl_type(param->DataType); + if ((GLint) param->Size > typeSize) { + /* This is an array. + * Array elements are placed on vector[4] boundaries so they're + * a multiple of four floats. We round typeSize up to next multiple + * of four to get the right size below. + */ + typeSize = (typeSize + 3) & ~3; + } + /* Note that the returned size is in units of the , not bytes */ + *size = param->Size / typeSize; + } + + if (type) { + *type = param->DataType; + } +} + + +static unsigned +get_vector_elements(GLenum type) +{ + switch (type) { + case GL_FLOAT: + case GL_INT: + case GL_BOOL: + case GL_UNSIGNED_INT: + default: /* Catch all the various sampler types. */ + return 1; + + case GL_FLOAT_VEC2: + case GL_INT_VEC2: + case GL_BOOL_VEC2: + case GL_UNSIGNED_INT_VEC2: + return 2; + + case GL_FLOAT_VEC3: + case GL_INT_VEC3: + case GL_BOOL_VEC3: + case GL_UNSIGNED_INT_VEC3: + return 3; + + case GL_FLOAT_VEC4: + case GL_INT_VEC4: + case GL_BOOL_VEC4: + case GL_UNSIGNED_INT_VEC4: + return 4; + } +} + +static void +get_matrix_dims(GLenum type, GLint *rows, GLint *cols) +{ + switch (type) { + case GL_FLOAT_MAT2: + *rows = *cols = 2; + break; + case GL_FLOAT_MAT2x3: + *rows = 3; + *cols = 2; + break; + case GL_FLOAT_MAT2x4: + *rows = 4; + *cols = 2; + break; + case GL_FLOAT_MAT3: + *rows = 3; + *cols = 3; + break; + case GL_FLOAT_MAT3x2: + *rows = 2; + *cols = 3; + break; + case GL_FLOAT_MAT3x4: + *rows = 4; + *cols = 3; + break; + case GL_FLOAT_MAT4: + *rows = 4; + *cols = 4; + break; + case GL_FLOAT_MAT4x2: + *rows = 2; + *cols = 4; + break; + case GL_FLOAT_MAT4x3: + *rows = 3; + *cols = 4; + break; + default: + *rows = *cols = 0; + } +} + + +/** + * Determine the number of rows and columns occupied by a uniform + * according to its datatype. For non-matrix types (such as GL_FLOAT_VEC4), + * the number of rows = 1 and cols = number of elements in the vector. + */ +static void +get_uniform_rows_cols(const struct gl_program_parameter *p, + GLint *rows, GLint *cols) +{ + get_matrix_dims(p->DataType, rows, cols); + if (*rows == 0 && *cols == 0) { + /* not a matrix type, probably a float or vector */ + *rows = 1; + *cols = get_vector_elements(p->DataType); + } +} + + +/** + * Helper for get_uniform[fi]v() functions. + * Given a shader program name and uniform location, return a pointer + * to the shader program and return the program parameter position. + */ +static void +lookup_uniform_parameter(struct gl_context *ctx, GLuint program, GLint location, + struct gl_program **progOut, GLint *paramPosOut) +{ + struct gl_shader_program *shProg + = _mesa_lookup_shader_program_err(ctx, program, "glGetUniform[if]v"); + struct gl_program *prog = NULL; + GLint progPos = -1; + + /* if shProg is NULL, we'll have already recorded an error */ + + if (shProg) { + if (!shProg->Uniforms || + location < 0 || + location >= (GLint) shProg->Uniforms->NumUniforms) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformfv(location)"); + } + else { + /* OK, find the gl_program and program parameter location */ + progPos = shProg->Uniforms->Uniforms[location].VertPos; + if (progPos >= 0) { + prog = &shProg->VertexProgram->Base; + } + else { + progPos = shProg->Uniforms->Uniforms[location].FragPos; + if (progPos >= 0) { + prog = &shProg->FragmentProgram->Base; + } else { + progPos = shProg->Uniforms->Uniforms[location].GeomPos; + if (progPos >= 0) { + prog = &shProg->GeometryProgram->Base; + } + } + } + } + } + + *progOut = prog; + *paramPosOut = progPos; +} + + +/** + * GLGL uniform arrays and structs require special handling. + * + * The GL_ARB_shader_objects spec says that if you use + * glGetUniformLocation to get the location of an array, you CANNOT + * access other elements of the array by adding an offset to the + * returned location. For example, you must call + * glGetUniformLocation("foo[16]") if you want to set the 16th element + * of the array with glUniform(). + * + * HOWEVER, some other OpenGL drivers allow accessing array elements + * by adding an offset to the returned array location. And some apps + * seem to depend on that behaviour. + * + * Mesa's gl_uniform_list doesn't directly support this since each + * entry in the list describes one uniform variable, not one uniform + * element. We could insert dummy entries in the list for each array + * element after [0] but that causes complications elsewhere. + * + * We solve this problem by encoding two values in the location that's + * returned by glGetUniformLocation(): + * a) index into gl_uniform_list::Uniforms[] for the uniform + * b) an array/field offset (0 for simple types) + * + * These two values are encoded in the high and low halves of a GLint. + * By putting the uniform number in the high part and the offset in the + * low part, we can support the unofficial ability to index into arrays + * by adding offsets to the location value. + */ +static void +merge_location_offset(GLint *location, GLint offset) +{ + *location = (*location << 16) | offset; +} + + +/** + * Separate the uniform location and parameter offset. See above. + */ +static void +split_location_offset(GLint *location, GLint *offset) +{ + *offset = *location & 0xffff; + *location = *location >> 16; +} + + + +/** + * Called via glGetUniformfv(). + */ +static void +_mesa_get_uniformfv(struct gl_context *ctx, GLuint program, GLint location, + GLfloat *params) +{ + struct gl_program *prog; + GLint paramPos; + GLint offset; + + split_location_offset(&location, &offset); + + lookup_uniform_parameter(ctx, program, location, &prog, ¶mPos); + + if (prog) { + const struct gl_program_parameter *p = + &prog->Parameters->Parameters[paramPos]; + GLint rows, cols, i, j, k; + + get_uniform_rows_cols(p, &rows, &cols); + + k = 0; + for (i = 0; i < rows; i++) { + const int base = paramPos + offset + i; + + for (j = 0; j < cols; j++ ) { + params[k++] = prog->Parameters->ParameterValues[base][j]; + } + } + } +} + + +/** + * Called via glGetUniformiv(). + * \sa _mesa_get_uniformfv, only difference is a cast. + */ +static void +_mesa_get_uniformiv(struct gl_context *ctx, GLuint program, GLint location, + GLint *params) +{ + struct gl_program *prog; + GLint paramPos; + GLint offset; + + split_location_offset(&location, &offset); + + lookup_uniform_parameter(ctx, program, location, &prog, ¶mPos); + + if (prog) { + const struct gl_program_parameter *p = + &prog->Parameters->Parameters[paramPos]; + GLint rows, cols, i, j, k; + + get_uniform_rows_cols(p, &rows, &cols); + + k = 0; + for (i = 0; i < rows; i++) { + const int base = paramPos + offset + i; + + for (j = 0; j < cols; j++ ) { + params[k++] = (GLint) prog->Parameters->ParameterValues[base][j]; + } + } + } +} + + +/** + * Called via glGetUniformuiv(). + * New in GL_EXT_gpu_shader4, OpenGL 3.0 + * \sa _mesa_get_uniformfv, only difference is a cast. + */ +static void +_mesa_get_uniformuiv(struct gl_context *ctx, GLuint program, GLint location, + GLuint *params) +{ + struct gl_program *prog; + GLint paramPos; + GLint offset; + + split_location_offset(&location, &offset); + + lookup_uniform_parameter(ctx, program, location, &prog, ¶mPos); + + if (prog) { + const struct gl_program_parameter *p = + &prog->Parameters->Parameters[paramPos]; + GLint rows, cols, i, j, k; + + get_uniform_rows_cols(p, &rows, &cols); + + k = 0; + for (i = 0; i < rows; i++) { + const int base = paramPos + offset + i; + + for (j = 0; j < cols; j++ ) { + params[k++] = (GLuint) prog->Parameters->ParameterValues[base][j]; + } + } + } +} + + +/** + * Called via glGetUniformLocation(). + * + * The return value will encode two values, the uniform location and an + * offset (used for arrays, structs). + */ +GLint +_mesa_get_uniform_location(struct gl_context *ctx, struct gl_shader_program *shProg, + const GLchar *name) +{ + GLint offset = 0, location = -1; + + if (shProg->LinkStatus == GL_FALSE) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformfv(program)"); + return -1; + } + + /* XXX we should return -1 if the uniform was declared, but not + * actually used. + */ + + /* XXX we need to be able to parse uniform names for structs and arrays + * such as: + * mymatrix[1] + * mystruct.field1 + */ + + { + /* handle 1-dimension arrays here... */ + char *c = strchr(name, '['); + if (c) { + /* truncate name at [ */ + const GLint len = c - name; + GLchar *newName = malloc(len + 1); + if (!newName) + return -1; /* out of mem */ + memcpy(newName, name, len); + newName[len] = 0; + + location = _mesa_lookup_uniform(shProg->Uniforms, newName); + if (location >= 0) { + const GLint element = atoi(c + 1); + if (element > 0) { + /* get type of the uniform array element */ + struct gl_program_parameter *p; + p = get_uniform_parameter(shProg, location); + if (p) { + GLint rows, cols; + get_matrix_dims(p->DataType, &rows, &cols); + if (rows < 1) + rows = 1; + offset = element * rows; + } + } + } + + free(newName); + } + } + + if (location < 0) { + location = _mesa_lookup_uniform(shProg->Uniforms, name); + } + + if (location >= 0) { + merge_location_offset(&location, offset); + } + + return location; +} + + + +/** + * Update the vertex/fragment program's TexturesUsed array. + * + * This needs to be called after glUniform(set sampler var) is called. + * A call to glUniform(samplerVar, value) causes a sampler to point to a + * particular texture unit. We know the sampler's texture target + * (1D/2D/3D/etc) from compile time but the sampler's texture unit is + * set by glUniform() calls. + * + * So, scan the program->SamplerUnits[] and program->SamplerTargets[] + * information to update the prog->TexturesUsed[] values. + * Each value of TexturesUsed[unit] is one of zero, TEXTURE_1D_INDEX, + * TEXTURE_2D_INDEX, TEXTURE_3D_INDEX, etc. + * We'll use that info for state validation before rendering. + */ +void +_mesa_update_shader_textures_used(struct gl_program *prog) +{ + GLuint s; + + memset(prog->TexturesUsed, 0, sizeof(prog->TexturesUsed)); + + for (s = 0; s < MAX_SAMPLERS; s++) { + if (prog->SamplersUsed & (1 << s)) { + GLuint unit = prog->SamplerUnits[s]; + GLuint tgt = prog->SamplerTargets[s]; + assert(unit < MAX_TEXTURE_IMAGE_UNITS); + assert(tgt < NUM_TEXTURE_TARGETS); + prog->TexturesUsed[unit] |= (1 << tgt); + } + } +} + + +/** + * Check if the type given by userType is allowed to set a uniform of the + * target type. Generally, equivalence is required, but setting Boolean + * uniforms can be done with glUniformiv or glUniformfv. + */ +static GLboolean +compatible_types(GLenum userType, GLenum targetType) +{ + if (userType == targetType) + return GL_TRUE; + + if (targetType == GL_BOOL && (userType == GL_FLOAT || + userType == GL_UNSIGNED_INT || + userType == GL_INT)) + return GL_TRUE; + + if (targetType == GL_BOOL_VEC2 && (userType == GL_FLOAT_VEC2 || + userType == GL_UNSIGNED_INT_VEC2 || + userType == GL_INT_VEC2)) + return GL_TRUE; + + if (targetType == GL_BOOL_VEC3 && (userType == GL_FLOAT_VEC3 || + userType == GL_UNSIGNED_INT_VEC3 || + userType == GL_INT_VEC3)) + return GL_TRUE; + + if (targetType == GL_BOOL_VEC4 && (userType == GL_FLOAT_VEC4 || + userType == GL_UNSIGNED_INT_VEC4 || + userType == GL_INT_VEC4)) + return GL_TRUE; + + if (is_sampler_type(targetType) && userType == GL_INT) + return GL_TRUE; + + return GL_FALSE; +} + + +/** + * Set the value of a program's uniform variable. + * \param program the program whose uniform to update + * \param index the index of the program parameter for the uniform + * \param offset additional parameter slot offset (for arrays) + * \param type the incoming datatype of 'values' + * \param count the number of uniforms to set + * \param elems number of elements per uniform (1, 2, 3 or 4) + * \param values the new values, of datatype 'type' + */ +static void +set_program_uniform(struct gl_context *ctx, struct gl_program *program, + GLint index, GLint offset, + GLenum type, GLsizei count, GLint elems, + const void *values) +{ + const struct gl_program_parameter *param = + &program->Parameters->Parameters[index]; + + assert(offset >= 0); + assert(elems >= 1); + assert(elems <= 4); + + if (!compatible_types(type, param->DataType)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(type mismatch)"); + return; + } + + if (index + offset > (GLint) program->Parameters->Size) { + /* out of bounds! */ + return; + } + + if (param->Type == PROGRAM_SAMPLER) { + /* This controls which texture unit which is used by a sampler */ + GLboolean changed = GL_FALSE; + GLint i; + + /* this should have been caught by the compatible_types() check */ + ASSERT(type == GL_INT); + + /* loop over number of samplers to change */ + for (i = 0; i < count; i++) { + GLuint sampler = + (GLuint) program->Parameters->ParameterValues[index + offset + i][0]; + GLuint texUnit = ((GLuint *) values)[i]; + + /* check that the sampler (tex unit index) is legal */ + if (texUnit >= ctx->Const.MaxTextureImageUnits) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glUniform1(invalid sampler/tex unit index for '%s')", + param->Name); + return; + } + + /* This maps a sampler to a texture unit: */ + if (sampler < MAX_SAMPLERS) { +#if 0 + printf("Set program %p sampler %d '%s' to unit %u\n", + program, sampler, param->Name, texUnit); +#endif + if (program->SamplerUnits[sampler] != texUnit) { + program->SamplerUnits[sampler] = texUnit; + changed = GL_TRUE; + } + } + } + + if (changed) { + /* When a sampler's value changes it usually requires rewriting + * a GPU program's TEX instructions since there may not be a + * sampler->texture lookup table. We signal this with the + * ProgramStringNotify() callback. + */ + FLUSH_VERTICES(ctx, _NEW_TEXTURE | _NEW_PROGRAM); + _mesa_update_shader_textures_used(program); + /* Do we need to care about the return value here? + * This should not be the first time the driver was notified of + * this program. + */ + (void) ctx->Driver.ProgramStringNotify(ctx, program->Target, program); + } + } + else { + /* ordinary uniform variable */ + const GLboolean isUniformBool = is_boolean_type(param->DataType); + const GLenum basicType = base_uniform_type(type); + const GLint slots = (param->Size + 3) / 4; + const GLint typeSize = _mesa_sizeof_glsl_type(param->DataType); + GLsizei k, i; + + if ((GLint) param->Size > typeSize) { + /* an array */ + /* we'll ignore extra data below */ + } + else { + /* non-array: count must be at most one; count == 0 is handled by the loop below */ + if (count > 1) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glUniform(uniform '%s' is not an array)", + param->Name); + return; + } + } + + /* loop over number of array elements */ + for (k = 0; k < count; k++) { + GLfloat *uniformVal; + + if (offset + k >= slots) { + /* Extra array data is ignored */ + break; + } + + /* uniformVal (the destination) is always float[4] */ + uniformVal = program->Parameters->ParameterValues[index + offset + k]; + + if (basicType == GL_INT) { + /* convert user's ints to floats */ + const GLint *iValues = ((const GLint *) values) + k * elems; + for (i = 0; i < elems; i++) { + uniformVal[i] = (GLfloat) iValues[i]; + } + } + else if (basicType == GL_UNSIGNED_INT) { + /* convert user's uints to floats */ + const GLuint *iValues = ((const GLuint *) values) + k * elems; + for (i = 0; i < elems; i++) { + uniformVal[i] = (GLfloat) iValues[i]; + } + } + else { + const GLfloat *fValues = ((const GLfloat *) values) + k * elems; + assert(basicType == GL_FLOAT); + for (i = 0; i < elems; i++) { + uniformVal[i] = fValues[i]; + } + } + + /* if the uniform is bool-valued, convert to 1.0 or 0.0 */ + if (isUniformBool) { + for (i = 0; i < elems; i++) { + uniformVal[i] = uniformVal[i] ? 1.0f : 0.0f; + } + } + } + } +} + + +/** + * Called via glUniform*() functions. + */ +void +_mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg, + GLint location, GLsizei count, + const GLvoid *values, GLenum type) +{ + struct gl_uniform *uniform; + GLint elems, offset; + + if (!shProg || !shProg->LinkStatus) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(program not linked)"); + return; + } + + if (location == -1) + return; /* The standard specifies this as a no-op */ + + if (location < -1) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(location=%d)", + location); + return; + } + + split_location_offset(&location, &offset); + + if (location < 0 || location >= (GLint) shProg->Uniforms->NumUniforms) { + _mesa_error(ctx, GL_INVALID_VALUE, "glUniform(location=%d)", location); + return; + } + + if (count < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glUniform(count < 0)"); + return; + } + + elems = _mesa_sizeof_glsl_type(type); + + FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS); + + uniform = &shProg->Uniforms->Uniforms[location]; + + if (ctx->Shader.Flags & GLSL_UNIFORMS) { + const GLenum basicType = base_uniform_type(type); + GLint i; + printf("Mesa: set program %u uniform %s (loc %d) to: ", + shProg->Name, uniform->Name, location); + if (basicType == GL_INT) { + const GLint *v = (const GLint *) values; + for (i = 0; i < count * elems; i++) { + printf("%d ", v[i]); + } + } + else if (basicType == GL_UNSIGNED_INT) { + const GLuint *v = (const GLuint *) values; + for (i = 0; i < count * elems; i++) { + printf("%u ", v[i]); + } + } + else { + const GLfloat *v = (const GLfloat *) values; + assert(basicType == GL_FLOAT); + for (i = 0; i < count * elems; i++) { + printf("%g ", v[i]); + } + } + printf("\n"); + } + + /* A uniform var may be used by both a vertex shader and a fragment + * shader. We may need to update one or both shader's uniform here: + */ + if (shProg->VertexProgram) { + /* convert uniform location to program parameter index */ + GLint index = uniform->VertPos; + if (index >= 0) { + set_program_uniform(ctx, &shProg->VertexProgram->Base, + index, offset, type, count, elems, values); + } + } + + if (shProg->FragmentProgram) { + /* convert uniform location to program parameter index */ + GLint index = uniform->FragPos; + if (index >= 0) { + set_program_uniform(ctx, &shProg->FragmentProgram->Base, + index, offset, type, count, elems, values); + } + } + + if (shProg->GeometryProgram) { + /* convert uniform location to program parameter index */ + GLint index = uniform->GeomPos; + if (index >= 0) { + set_program_uniform(ctx, &shProg->GeometryProgram->Base, + index, offset, type, count, elems, values); + } + } + + uniform->Initialized = GL_TRUE; +} + + +/** + * Set a matrix-valued program parameter. + */ +static void +set_program_uniform_matrix(struct gl_context *ctx, struct gl_program *program, + GLuint index, GLuint offset, + GLuint count, GLuint rows, GLuint cols, + GLboolean transpose, const GLfloat *values) +{ + GLuint mat, row, col; + GLuint src = 0; + const struct gl_program_parameter * param = &program->Parameters->Parameters[index]; + const GLuint slots = (param->Size + 3) / 4; + const GLint typeSize = _mesa_sizeof_glsl_type(param->DataType); + GLint nr, nc; + + /* check that the number of rows, columns is correct */ + get_matrix_dims(param->DataType, &nr, &nc); + if (rows != nr || cols != nc) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glUniformMatrix(matrix size mismatch)"); + return; + } + + if ((GLint) param->Size <= typeSize) { + /* non-array: count must be at most one; count == 0 is handled by the loop below */ + if (count > 1) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glUniformMatrix(uniform is not an array)"); + return; + } + } + + /* + * Note: the _columns_ of a matrix are stored in program registers, not + * the rows. So, the loops below look a little funny. + * XXX could optimize this a bit... + */ + + /* loop over matrices */ + for (mat = 0; mat < count; mat++) { + + /* each matrix: */ + for (col = 0; col < cols; col++) { + GLfloat *v; + if (offset >= slots) { + /* Ignore writes beyond the end of (the used part of) an array */ + return; + } + v = program->Parameters->ParameterValues[index + offset]; + for (row = 0; row < rows; row++) { + if (transpose) { + v[row] = values[src + row * cols + col]; + } + else { + v[row] = values[src + col * rows + row]; + } + } + + offset++; + } + + src += rows * cols; /* next matrix */ + } +} + + +/** + * Called by glUniformMatrix*() functions. + * Note: cols=2, rows=4 ==> array[2] of vec4 + */ +void +_mesa_uniform_matrix(struct gl_context *ctx, struct gl_shader_program *shProg, + GLint cols, GLint rows, + GLint location, GLsizei count, + GLboolean transpose, const GLfloat *values) +{ + struct gl_uniform *uniform; + GLint offset; + + if (!shProg || !shProg->LinkStatus) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glUniformMatrix(program not linked)"); + return; + } + + if (location == -1) + return; /* The standard specifies this as a no-op */ + + if (location < -1) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glUniformMatrix(location)"); + return; + } + + split_location_offset(&location, &offset); + + if (location < 0 || location >= (GLint) shProg->Uniforms->NumUniforms) { + _mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix(location)"); + return; + } + if (values == NULL) { + _mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix"); + return; + } + + FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS); + + uniform = &shProg->Uniforms->Uniforms[location]; + + if (shProg->VertexProgram) { + /* convert uniform location to program parameter index */ + GLint index = uniform->VertPos; + if (index >= 0) { + set_program_uniform_matrix(ctx, &shProg->VertexProgram->Base, + index, offset, + count, rows, cols, transpose, values); + } + } + + if (shProg->FragmentProgram) { + /* convert uniform location to program parameter index */ + GLint index = uniform->FragPos; + if (index >= 0) { + set_program_uniform_matrix(ctx, &shProg->FragmentProgram->Base, + index, offset, + count, rows, cols, transpose, values); + } + } + + if (shProg->GeometryProgram) { + /* convert uniform location to program parameter index */ + GLint index = uniform->GeomPos; + if (index >= 0) { + set_program_uniform_matrix(ctx, &shProg->GeometryProgram->Base, + index, offset, + count, rows, cols, transpose, values); + } + } + + uniform->Initialized = GL_TRUE; +} + + +void GLAPIENTRY +_mesa_Uniform1fARB(GLint location, GLfloat v0) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_FLOAT); +} + +void GLAPIENTRY +_mesa_Uniform2fARB(GLint location, GLfloat v0, GLfloat v1) +{ + GET_CURRENT_CONTEXT(ctx); + GLfloat v[2]; + v[0] = v0; + v[1] = v1; + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC2); +} + +void GLAPIENTRY +_mesa_Uniform3fARB(GLint location, GLfloat v0, GLfloat v1, GLfloat v2) +{ + GET_CURRENT_CONTEXT(ctx); + GLfloat v[3]; + v[0] = v0; + v[1] = v1; + v[2] = v2; + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC3); +} + +void GLAPIENTRY +_mesa_Uniform4fARB(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, + GLfloat v3) +{ + GET_CURRENT_CONTEXT(ctx); + GLfloat v[4]; + v[0] = v0; + v[1] = v1; + v[2] = v2; + v[3] = v3; + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC4); +} + +void GLAPIENTRY +_mesa_Uniform1iARB(GLint location, GLint v0) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_INT); +} + +void GLAPIENTRY +_mesa_Uniform2iARB(GLint location, GLint v0, GLint v1) +{ + GET_CURRENT_CONTEXT(ctx); + GLint v[2]; + v[0] = v0; + v[1] = v1; + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC2); +} + +void GLAPIENTRY +_mesa_Uniform3iARB(GLint location, GLint v0, GLint v1, GLint v2) +{ + GET_CURRENT_CONTEXT(ctx); + GLint v[3]; + v[0] = v0; + v[1] = v1; + v[2] = v2; + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC3); +} + +void GLAPIENTRY +_mesa_Uniform4iARB(GLint location, GLint v0, GLint v1, GLint v2, GLint v3) +{ + GET_CURRENT_CONTEXT(ctx); + GLint v[4]; + v[0] = v0; + v[1] = v1; + v[2] = v2; + v[3] = v3; + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC4); +} + +void GLAPIENTRY +_mesa_Uniform1fvARB(GLint location, GLsizei count, const GLfloat * value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT); +} + +void GLAPIENTRY +_mesa_Uniform2fvARB(GLint location, GLsizei count, const GLfloat * value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC2); +} + +void GLAPIENTRY +_mesa_Uniform3fvARB(GLint location, GLsizei count, const GLfloat * value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC3); +} + +void GLAPIENTRY +_mesa_Uniform4fvARB(GLint location, GLsizei count, const GLfloat * value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC4); +} + +void GLAPIENTRY +_mesa_Uniform1ivARB(GLint location, GLsizei count, const GLint * value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT); +} + +void GLAPIENTRY +_mesa_Uniform2ivARB(GLint location, GLsizei count, const GLint * value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC2); +} + +void GLAPIENTRY +_mesa_Uniform3ivARB(GLint location, GLsizei count, const GLint * value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC3); +} + +void GLAPIENTRY +_mesa_Uniform4ivARB(GLint location, GLsizei count, const GLint * value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC4); +} + + +/** OpenGL 3.0 GLuint-valued functions **/ +void GLAPIENTRY +_mesa_Uniform1ui(GLint location, GLuint v0) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_UNSIGNED_INT); +} + +void GLAPIENTRY +_mesa_Uniform2ui(GLint location, GLuint v0, GLuint v1) +{ + GET_CURRENT_CONTEXT(ctx); + GLuint v[2]; + v[0] = v0; + v[1] = v1; + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC2); +} + +void GLAPIENTRY +_mesa_Uniform3ui(GLint location, GLuint v0, GLuint v1, GLuint v2) +{ + GET_CURRENT_CONTEXT(ctx); + GLuint v[3]; + v[0] = v0; + v[1] = v1; + v[2] = v2; + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC3); +} + +void GLAPIENTRY +_mesa_Uniform4ui(GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3) +{ + GET_CURRENT_CONTEXT(ctx); + GLuint v[4]; + v[0] = v0; + v[1] = v1; + v[2] = v2; + v[3] = v3; + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC4); +} + +void GLAPIENTRY +_mesa_Uniform1uiv(GLint location, GLsizei count, const GLuint *value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT); +} + +void GLAPIENTRY +_mesa_Uniform2uiv(GLint location, GLsizei count, const GLuint *value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC2); +} + +void GLAPIENTRY +_mesa_Uniform3uiv(GLint location, GLsizei count, const GLuint *value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC3); +} + +void GLAPIENTRY +_mesa_Uniform4uiv(GLint location, GLsizei count, const GLuint *value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC4); +} + + + +void GLAPIENTRY +_mesa_UniformMatrix2fvARB(GLint location, GLsizei count, GLboolean transpose, + const GLfloat * value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, + 2, 2, location, count, transpose, value); +} + +void GLAPIENTRY +_mesa_UniformMatrix3fvARB(GLint location, GLsizei count, GLboolean transpose, + const GLfloat * value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, + 3, 3, location, count, transpose, value); +} + +void GLAPIENTRY +_mesa_UniformMatrix4fvARB(GLint location, GLsizei count, GLboolean transpose, + const GLfloat * value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, + 4, 4, location, count, transpose, value); +} + + +/** + * Non-square UniformMatrix are OpenGL 2.1 + */ +void GLAPIENTRY +_mesa_UniformMatrix2x3fv(GLint location, GLsizei count, GLboolean transpose, + const GLfloat *value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, + 2, 3, location, count, transpose, value); +} + +void GLAPIENTRY +_mesa_UniformMatrix3x2fv(GLint location, GLsizei count, GLboolean transpose, + const GLfloat *value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, + 3, 2, location, count, transpose, value); +} + +void GLAPIENTRY +_mesa_UniformMatrix2x4fv(GLint location, GLsizei count, GLboolean transpose, + const GLfloat *value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, + 2, 4, location, count, transpose, value); +} + +void GLAPIENTRY +_mesa_UniformMatrix4x2fv(GLint location, GLsizei count, GLboolean transpose, + const GLfloat *value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, + 4, 2, location, count, transpose, value); +} + +void GLAPIENTRY +_mesa_UniformMatrix3x4fv(GLint location, GLsizei count, GLboolean transpose, + const GLfloat *value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, + 3, 4, location, count, transpose, value); +} + +void GLAPIENTRY +_mesa_UniformMatrix4x3fv(GLint location, GLsizei count, GLboolean transpose, + const GLfloat *value) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, + 4, 3, location, count, transpose, value); +} + + +void GLAPIENTRY +_mesa_GetUniformfvARB(GLhandleARB program, GLint location, GLfloat *params) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_get_uniformfv(ctx, program, location, params); +} + + +void GLAPIENTRY +_mesa_GetUniformivARB(GLhandleARB program, GLint location, GLint *params) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_get_uniformiv(ctx, program, location, params); +} + + +/* GL3 */ +void GLAPIENTRY +_mesa_GetUniformuiv(GLhandleARB program, GLint location, GLuint *params) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_get_uniformuiv(ctx, program, location, params); +} + + + +GLint GLAPIENTRY +_mesa_GetUniformLocationARB(GLhandleARB programObj, const GLcharARB *name) +{ + struct gl_shader_program *shProg; + + GET_CURRENT_CONTEXT(ctx); + + shProg = _mesa_lookup_shader_program_err(ctx, programObj, + "glGetUniformLocation"); + if (!shProg) + return -1; + + return _mesa_get_uniform_location(ctx, shProg, name); +} + + +void GLAPIENTRY +_mesa_GetActiveUniformARB(GLhandleARB program, GLuint index, + GLsizei maxLength, GLsizei * length, GLint * size, + GLenum * type, GLcharARB * name) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_get_active_uniform(ctx, program, index, maxLength, length, size, + type, name); +} + + +/** + * Plug in shader uniform-related functions into API dispatch table. + */ +void +_mesa_init_shader_uniform_dispatch(struct _glapi_table *exec) +{ +#if FEATURE_GL + SET_Uniform1fARB(exec, _mesa_Uniform1fARB); + SET_Uniform2fARB(exec, _mesa_Uniform2fARB); + SET_Uniform3fARB(exec, _mesa_Uniform3fARB); + SET_Uniform4fARB(exec, _mesa_Uniform4fARB); + SET_Uniform1iARB(exec, _mesa_Uniform1iARB); + SET_Uniform2iARB(exec, _mesa_Uniform2iARB); + SET_Uniform3iARB(exec, _mesa_Uniform3iARB); + SET_Uniform4iARB(exec, _mesa_Uniform4iARB); + SET_Uniform1fvARB(exec, _mesa_Uniform1fvARB); + SET_Uniform2fvARB(exec, _mesa_Uniform2fvARB); + SET_Uniform3fvARB(exec, _mesa_Uniform3fvARB); + SET_Uniform4fvARB(exec, _mesa_Uniform4fvARB); + SET_Uniform1ivARB(exec, _mesa_Uniform1ivARB); + SET_Uniform2ivARB(exec, _mesa_Uniform2ivARB); + SET_Uniform3ivARB(exec, _mesa_Uniform3ivARB); + SET_Uniform4ivARB(exec, _mesa_Uniform4ivARB); + SET_UniformMatrix2fvARB(exec, _mesa_UniformMatrix2fvARB); + SET_UniformMatrix3fvARB(exec, _mesa_UniformMatrix3fvARB); + SET_UniformMatrix4fvARB(exec, _mesa_UniformMatrix4fvARB); + + SET_GetActiveUniformARB(exec, _mesa_GetActiveUniformARB); + SET_GetUniformLocationARB(exec, _mesa_GetUniformLocationARB); + SET_GetUniformfvARB(exec, _mesa_GetUniformfvARB); + SET_GetUniformivARB(exec, _mesa_GetUniformivARB); + + /* OpenGL 2.1 */ + SET_UniformMatrix2x3fv(exec, _mesa_UniformMatrix2x3fv); + SET_UniformMatrix3x2fv(exec, _mesa_UniformMatrix3x2fv); + SET_UniformMatrix2x4fv(exec, _mesa_UniformMatrix2x4fv); + SET_UniformMatrix4x2fv(exec, _mesa_UniformMatrix4x2fv); + SET_UniformMatrix3x4fv(exec, _mesa_UniformMatrix3x4fv); + SET_UniformMatrix4x3fv(exec, _mesa_UniformMatrix4x3fv); + + /* OpenGL 3.0 */ + /* XXX finish dispatch */ + SET_Uniform1uiEXT(exec, _mesa_Uniform1ui); + SET_Uniform2uiEXT(exec, _mesa_Uniform2ui); + SET_Uniform3uiEXT(exec, _mesa_Uniform3ui); + SET_Uniform4uiEXT(exec, _mesa_Uniform4ui); + SET_Uniform1uivEXT(exec, _mesa_Uniform1uiv); + SET_Uniform2uivEXT(exec, _mesa_Uniform2uiv); + SET_Uniform3uivEXT(exec, _mesa_Uniform3uiv); + SET_Uniform4uivEXT(exec, _mesa_Uniform4uiv); + SET_GetUniformuivEXT(exec, _mesa_GetUniformuiv); + + +#endif /* FEATURE_GL */ +} diff --git a/mesalib/src/mesa/program/ir_to_mesa.cpp b/mesalib/src/mesa/program/ir_to_mesa.cpp index 0255b576c..a7bafb50b 100644 --- a/mesalib/src/mesa/program/ir_to_mesa.cpp +++ b/mesalib/src/mesa/program/ir_to_mesa.cpp @@ -2406,6 +2406,11 @@ print_program(struct prog_instruction *mesa_instructions, } } + +/** + * Count resources used by the given gpu program (number of texture + * samplers, etc). + */ static void count_resources(struct gl_program *prog) { @@ -2429,6 +2434,57 @@ count_resources(struct gl_program *prog) _mesa_update_shader_textures_used(prog); } + +/** + * Check if the given vertex/fragment/shader program is within the + * resource limits of the context (number of texture units, etc). + * If any of those checks fail, record a linker error. + * + * XXX more checks are needed... + */ +static void +check_resources(const struct gl_context *ctx, + struct gl_shader_program *shader_program, + struct gl_program *prog) +{ + switch (prog->Target) { + case GL_VERTEX_PROGRAM_ARB: + if (_mesa_bitcount(prog->SamplersUsed) > + ctx->Const.MaxVertexTextureImageUnits) { + fail_link(shader_program, "Too many vertex shader texture samplers"); + } + if (prog->Parameters->NumParameters > + ctx->Const.VertexProgram.MaxUniformComponents / 4) { + fail_link(shader_program, "Too many vertex shader constants"); + } + break; + case MESA_GEOMETRY_PROGRAM: + if (_mesa_bitcount(prog->SamplersUsed) > + ctx->Const.MaxGeometryTextureImageUnits) { + fail_link(shader_program, "Too many geometry shader texture samplers"); + } + if (prog->Parameters->NumParameters > + ctx->Const.GeometryProgram.MaxUniformComponents / 4) { + fail_link(shader_program, "Too many geometry shader constants"); + } + break; + case GL_FRAGMENT_PROGRAM_ARB: + if (_mesa_bitcount(prog->SamplersUsed) > + ctx->Const.MaxTextureImageUnits) { + fail_link(shader_program, "Too many fragment shader texture samplers"); + } + if (prog->Parameters->NumParameters > + ctx->Const.FragmentProgram.MaxUniformComponents / 4) { + fail_link(shader_program, "Too many fragment shader constants"); + } + break; + default: + _mesa_problem(ctx, "unexpected program type in check_resources()"); + } +} + + + struct uniform_sort { struct gl_uniform *u; int pos; @@ -3026,6 +3082,8 @@ get_mesa_program(struct gl_context *ctx, do_set_program_inouts(shader->ir, prog); count_resources(prog); + check_resources(ctx, shader_program, prog); + _mesa_reference_program(ctx, &shader->Program, prog); if ((ctx->Shader.Flags & GLSL_NO_OPT) == 0) { diff --git a/mesalib/src/mesa/program/prog_cache.c b/mesalib/src/mesa/program/prog_cache.c index 93612b4a0..398cd5e6d 100644 --- a/mesalib/src/mesa/program/prog_cache.c +++ b/mesalib/src/mesa/program/prog_cache.c @@ -29,6 +29,7 @@ #include "main/glheader.h" #include "main/mtypes.h" #include "main/imports.h" +#include "main/shaderobj.h" #include "program/prog_cache.h" #include "program/program.h" @@ -104,7 +105,8 @@ rehash(struct gl_program_cache *cache) static void -clear_cache(struct gl_context *ctx, struct gl_program_cache *cache) +clear_cache(struct gl_context *ctx, struct gl_program_cache *cache, + GLboolean shader) { struct cache_item *c, *next; GLuint i; @@ -115,7 +117,13 @@ clear_cache(struct gl_context *ctx, struct gl_program_cache *cache) for (c = cache->items[i]; c; c = next) { next = c->next; free(c->key); - _mesa_reference_program(ctx, &c->program, NULL); + if (shader) { + _mesa_reference_shader_program(ctx, + (struct gl_shader_program **)&c->program, + NULL); + } else { + _mesa_reference_program(ctx, &c->program, NULL); + } free(c); } cache->items[i] = NULL; @@ -147,7 +155,16 @@ _mesa_new_program_cache(void) void _mesa_delete_program_cache(struct gl_context *ctx, struct gl_program_cache *cache) { - clear_cache(ctx, cache); + clear_cache(ctx, cache, GL_FALSE); + free(cache->items); + free(cache); +} + +void +_mesa_delete_shader_cache(struct gl_context *ctx, + struct gl_program_cache *cache) +{ + clear_cache(ctx, cache, GL_TRUE); free(cache->items); free(cache); } @@ -197,7 +214,35 @@ _mesa_program_cache_insert(struct gl_context *ctx, if (cache->size < 1000) rehash(cache); else - clear_cache(ctx, cache); + clear_cache(ctx, cache, GL_FALSE); + } + + cache->n_items++; + c->next = cache->items[hash % cache->size]; + cache->items[hash % cache->size] = c; +} + +void +_mesa_shader_cache_insert(struct gl_context *ctx, + struct gl_program_cache *cache, + const void *key, GLuint keysize, + struct gl_shader_program *program) +{ + const GLuint hash = hash_key(key, keysize); + struct cache_item *c = CALLOC_STRUCT(cache_item); + + c->hash = hash; + + c->key = malloc(keysize); + memcpy(c->key, key, keysize); + + c->program = (struct gl_program *)program; /* no refcount change */ + + if (cache->n_items > cache->size * 1.5) { + if (cache->size < 1000) + rehash(cache); + else + clear_cache(ctx, cache, GL_TRUE); } cache->n_items++; diff --git a/mesalib/src/mesa/program/prog_cache.h b/mesalib/src/mesa/program/prog_cache.h index aae2b7df2..e7ec8d39a 100644 --- a/mesalib/src/mesa/program/prog_cache.h +++ b/mesalib/src/mesa/program/prog_cache.h @@ -44,6 +44,9 @@ _mesa_new_program_cache(void); extern void _mesa_delete_program_cache(struct gl_context *ctx, struct gl_program_cache *pc); +extern void +_mesa_delete_shader_cache(struct gl_context *ctx, + struct gl_program_cache *cache); extern struct gl_program * _mesa_search_program_cache(struct gl_program_cache *cache, @@ -55,5 +58,11 @@ _mesa_program_cache_insert(struct gl_context *ctx, const void *key, GLuint keysize, struct gl_program *program); +void +_mesa_shader_cache_insert(struct gl_context *ctx, + struct gl_program_cache *cache, + const void *key, GLuint keysize, + struct gl_shader_program *program); + #endif /* PROG_CACHE_H */ diff --git a/mesalib/src/mesa/program/program.c b/mesalib/src/mesa/program/program.c index cfdd0da86..43f894a9b 100644 --- a/mesalib/src/mesa/program/program.c +++ b/mesalib/src/mesa/program/program.c @@ -1,1077 +1,1077 @@ -/* - * Mesa 3-D graphics library - * Version: 6.5.3 - * - * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/** - * \file program.c - * Vertex and fragment program support functions. - * \author Brian Paul - */ - - -#include "main/glheader.h" -#include "main/context.h" -#include "main/hash.h" -#include "main/mfeatures.h" -#include "program.h" -#include "prog_cache.h" -#include "prog_parameter.h" -#include "prog_instruction.h" - - -/** - * A pointer to this dummy program is put into the hash table when - * glGenPrograms is called. - */ -struct gl_program _mesa_DummyProgram; - - -/** - * Init context's vertex/fragment program state - */ -void -_mesa_init_program(struct gl_context *ctx) -{ - GLuint i; - - /* - * If this assertion fails, we need to increase the field - * size for register indexes (see INST_INDEX_BITS). - */ - ASSERT(ctx->Const.VertexProgram.MaxUniformComponents / 4 - <= (1 << INST_INDEX_BITS)); - ASSERT(ctx->Const.FragmentProgram.MaxUniformComponents / 4 - <= (1 << INST_INDEX_BITS)); - - ASSERT(ctx->Const.VertexProgram.MaxTemps <= (1 << INST_INDEX_BITS)); - ASSERT(ctx->Const.VertexProgram.MaxLocalParams <= (1 << INST_INDEX_BITS)); - ASSERT(ctx->Const.FragmentProgram.MaxTemps <= (1 << INST_INDEX_BITS)); - ASSERT(ctx->Const.FragmentProgram.MaxLocalParams <= (1 << INST_INDEX_BITS)); - - ASSERT(ctx->Const.VertexProgram.MaxUniformComponents <= 4 * MAX_UNIFORMS); - ASSERT(ctx->Const.FragmentProgram.MaxUniformComponents <= 4 * MAX_UNIFORMS); - - ASSERT(ctx->Const.VertexProgram.MaxAddressOffset <= (1 << INST_INDEX_BITS)); - ASSERT(ctx->Const.FragmentProgram.MaxAddressOffset <= (1 << INST_INDEX_BITS)); - - /* If this fails, increase prog_instruction::TexSrcUnit size */ - ASSERT(MAX_TEXTURE_UNITS < (1 << 5)); - - /* If this fails, increase prog_instruction::TexSrcTarget size */ - ASSERT(NUM_TEXTURE_TARGETS < (1 << 3)); - - ctx->Program.ErrorPos = -1; - ctx->Program.ErrorString = _mesa_strdup(""); - -#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program - ctx->VertexProgram.Enabled = GL_FALSE; -#if FEATURE_es2_glsl - ctx->VertexProgram.PointSizeEnabled = - (ctx->API == API_OPENGLES2) ? GL_TRUE : GL_FALSE; -#else - ctx->VertexProgram.PointSizeEnabled = GL_FALSE; -#endif - ctx->VertexProgram.TwoSideEnabled = GL_FALSE; - _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, - ctx->Shared->DefaultVertexProgram); - assert(ctx->VertexProgram.Current); - for (i = 0; i < MAX_NV_VERTEX_PROGRAM_PARAMS / 4; i++) { - ctx->VertexProgram.TrackMatrix[i] = GL_NONE; - ctx->VertexProgram.TrackMatrixTransform[i] = GL_IDENTITY_NV; - } - ctx->VertexProgram.Cache = _mesa_new_program_cache(); -#endif - -#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program - ctx->FragmentProgram.Enabled = GL_FALSE; - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, - ctx->Shared->DefaultFragmentProgram); - assert(ctx->FragmentProgram.Current); - ctx->FragmentProgram.Cache = _mesa_new_program_cache(); -#endif - -#if FEATURE_ARB_geometry_shader4 - ctx->GeometryProgram.Enabled = GL_FALSE; - /* right now by default we don't have a geometry program */ - _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current, - NULL); - ctx->GeometryProgram.Cache = _mesa_new_program_cache(); -#endif - - /* XXX probably move this stuff */ -#if FEATURE_ATI_fragment_shader - ctx->ATIFragmentShader.Enabled = GL_FALSE; - ctx->ATIFragmentShader.Current = ctx->Shared->DefaultFragmentShader; - assert(ctx->ATIFragmentShader.Current); - ctx->ATIFragmentShader.Current->RefCount++; -#endif -} - - -/** - * Free a context's vertex/fragment program state - */ -void -_mesa_free_program_data(struct gl_context *ctx) -{ -#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program - _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, NULL); - _mesa_delete_program_cache(ctx, ctx->VertexProgram.Cache); -#endif -#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, NULL); - _mesa_delete_program_cache(ctx, ctx->FragmentProgram.Cache); -#endif -#if FEATURE_ARB_geometry_shader4 - _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current, NULL); - _mesa_delete_program_cache(ctx, ctx->GeometryProgram.Cache); -#endif - /* XXX probably move this stuff */ -#if FEATURE_ATI_fragment_shader - if (ctx->ATIFragmentShader.Current) { - ctx->ATIFragmentShader.Current->RefCount--; - if (ctx->ATIFragmentShader.Current->RefCount <= 0) { - free(ctx->ATIFragmentShader.Current); - } - } -#endif - free((void *) ctx->Program.ErrorString); -} - - -/** - * Update the default program objects in the given context to reference those - * specified in the shared state and release those referencing the old - * shared state. - */ -void -_mesa_update_default_objects_program(struct gl_context *ctx) -{ -#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program - _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, - (struct gl_vertex_program *) - ctx->Shared->DefaultVertexProgram); - assert(ctx->VertexProgram.Current); -#endif - -#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, - (struct gl_fragment_program *) - ctx->Shared->DefaultFragmentProgram); - assert(ctx->FragmentProgram.Current); -#endif - -#if FEATURE_ARB_geometry_shader4 - _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current, - (struct gl_geometry_program *) - ctx->Shared->DefaultGeometryProgram); -#endif - - /* XXX probably move this stuff */ -#if FEATURE_ATI_fragment_shader - if (ctx->ATIFragmentShader.Current) { - ctx->ATIFragmentShader.Current->RefCount--; - if (ctx->ATIFragmentShader.Current->RefCount <= 0) { - free(ctx->ATIFragmentShader.Current); - } - } - ctx->ATIFragmentShader.Current = (struct ati_fragment_shader *) ctx->Shared->DefaultFragmentShader; - assert(ctx->ATIFragmentShader.Current); - ctx->ATIFragmentShader.Current->RefCount++; -#endif -} - - -/** - * Set the vertex/fragment program error state (position and error string). - * This is generally called from within the parsers. - */ -void -_mesa_set_program_error(struct gl_context *ctx, GLint pos, const char *string) -{ - ctx->Program.ErrorPos = pos; - free((void *) ctx->Program.ErrorString); - if (!string) - string = ""; - ctx->Program.ErrorString = _mesa_strdup(string); -} - - -/** - * Find the line number and column for 'pos' within 'string'. - * Return a copy of the line which contains 'pos'. Free the line with - * free(). - * \param string the program string - * \param pos the position within the string - * \param line returns the line number corresponding to 'pos'. - * \param col returns the column number corresponding to 'pos'. - * \return copy of the line containing 'pos'. - */ -const GLubyte * -_mesa_find_line_column(const GLubyte *string, const GLubyte *pos, - GLint *line, GLint *col) -{ - const GLubyte *lineStart = string; - const GLubyte *p = string; - GLubyte *s; - int len; - - *line = 1; - - while (p != pos) { - if (*p == (GLubyte) '\n') { - (*line)++; - lineStart = p + 1; - } - p++; - } - - *col = (pos - lineStart) + 1; - - /* return copy of this line */ - while (*p != 0 && *p != '\n') - p++; - len = p - lineStart; - s = (GLubyte *) malloc(len + 1); - memcpy(s, lineStart, len); - s[len] = 0; - - return s; -} - - -/** - * Initialize a new vertex/fragment program object. - */ -static struct gl_program * -_mesa_init_program_struct( struct gl_context *ctx, struct gl_program *prog, - GLenum target, GLuint id) -{ - (void) ctx; - if (prog) { - GLuint i; - memset(prog, 0, sizeof(*prog)); - prog->Id = id; - prog->Target = target; - prog->Resident = GL_TRUE; - prog->RefCount = 1; - prog->Format = GL_PROGRAM_FORMAT_ASCII_ARB; - - /* default mapping from samplers to texture units */ - for (i = 0; i < MAX_SAMPLERS; i++) - prog->SamplerUnits[i] = i; - } - - return prog; -} - - -/** - * Initialize a new fragment program object. - */ -struct gl_program * -_mesa_init_fragment_program( struct gl_context *ctx, struct gl_fragment_program *prog, - GLenum target, GLuint id) -{ - if (prog) - return _mesa_init_program_struct( ctx, &prog->Base, target, id ); - else - return NULL; -} - - -/** - * Initialize a new vertex program object. - */ -struct gl_program * -_mesa_init_vertex_program( struct gl_context *ctx, struct gl_vertex_program *prog, - GLenum target, GLuint id) -{ - if (prog) - return _mesa_init_program_struct( ctx, &prog->Base, target, id ); - else - return NULL; -} - - -/** - * Initialize a new geometry program object. - */ -struct gl_program * -_mesa_init_geometry_program( struct gl_context *ctx, struct gl_geometry_program *prog, - GLenum target, GLuint id) -{ - if (prog) - return _mesa_init_program_struct( ctx, &prog->Base, target, id ); - else - return NULL; -} - - -/** - * Allocate and initialize a new fragment/vertex program object but - * don't put it into the program hash table. Called via - * ctx->Driver.NewProgram. May be overridden (ie. replaced) by a - * device driver function to implement OO deriviation with additional - * types not understood by this function. - * - * \param ctx context - * \param id program id/number - * \param target program target/type - * \return pointer to new program object - */ -struct gl_program * -_mesa_new_program(struct gl_context *ctx, GLenum target, GLuint id) -{ - struct gl_program *prog; - switch (target) { - case GL_VERTEX_PROGRAM_ARB: /* == GL_VERTEX_PROGRAM_NV */ - case GL_VERTEX_STATE_PROGRAM_NV: - prog = _mesa_init_vertex_program(ctx, CALLOC_STRUCT(gl_vertex_program), - target, id ); - break; - case GL_FRAGMENT_PROGRAM_NV: - case GL_FRAGMENT_PROGRAM_ARB: - prog =_mesa_init_fragment_program(ctx, - CALLOC_STRUCT(gl_fragment_program), - target, id ); - break; - case MESA_GEOMETRY_PROGRAM: - prog = _mesa_init_geometry_program(ctx, - CALLOC_STRUCT(gl_geometry_program), - target, id); - break; - default: - _mesa_problem(ctx, "bad target in _mesa_new_program"); - prog = NULL; - } - return prog; -} - - -/** - * Delete a program and remove it from the hash table, ignoring the - * reference count. - * Called via ctx->Driver.DeleteProgram. May be wrapped (OO deriviation) - * by a device driver function. - */ -void -_mesa_delete_program(struct gl_context *ctx, struct gl_program *prog) -{ - (void) ctx; - ASSERT(prog); - ASSERT(prog->RefCount==0); - - if (prog == &_mesa_DummyProgram) - return; - - if (prog->String) - free(prog->String); - - _mesa_free_instructions(prog->Instructions, prog->NumInstructions); - - if (prog->Parameters) { - _mesa_free_parameter_list(prog->Parameters); - } - if (prog->Varying) { - _mesa_free_parameter_list(prog->Varying); - } - if (prog->Attributes) { - _mesa_free_parameter_list(prog->Attributes); - } - - free(prog); -} - - -/** - * Return the gl_program object for a given ID. - * Basically just a wrapper for _mesa_HashLookup() to avoid a lot of - * casts elsewhere. - */ -struct gl_program * -_mesa_lookup_program(struct gl_context *ctx, GLuint id) -{ - if (id) - return (struct gl_program *) _mesa_HashLookup(ctx->Shared->Programs, id); - else - return NULL; -} - - -/** - * Reference counting for vertex/fragment programs - */ -void -_mesa_reference_program(struct gl_context *ctx, - struct gl_program **ptr, - struct gl_program *prog) -{ - assert(ptr); - if (*ptr && prog) { - /* sanity check */ - if ((*ptr)->Target == GL_VERTEX_PROGRAM_ARB) - ASSERT(prog->Target == GL_VERTEX_PROGRAM_ARB); - else if ((*ptr)->Target == GL_FRAGMENT_PROGRAM_ARB) - ASSERT(prog->Target == GL_FRAGMENT_PROGRAM_ARB || - prog->Target == GL_FRAGMENT_PROGRAM_NV); - else if ((*ptr)->Target == MESA_GEOMETRY_PROGRAM) - ASSERT(prog->Target == MESA_GEOMETRY_PROGRAM); - } - if (*ptr == prog) { - return; /* no change */ - } - if (*ptr) { - GLboolean deleteFlag; - - /*_glthread_LOCK_MUTEX((*ptr)->Mutex);*/ -#if 0 - printf("Program %p ID=%u Target=%s Refcount-- to %d\n", - *ptr, (*ptr)->Id, - ((*ptr)->Target == GL_VERTEX_PROGRAM_ARB ? "VP" : - ((*ptr)->Target == MESA_GEOMETRY_PROGRAM ? "GP" : "FP")), - (*ptr)->RefCount - 1); -#endif - ASSERT((*ptr)->RefCount > 0); - (*ptr)->RefCount--; - - deleteFlag = ((*ptr)->RefCount == 0); - /*_glthread_UNLOCK_MUTEX((*ptr)->Mutex);*/ - - if (deleteFlag) { - ASSERT(ctx); - ctx->Driver.DeleteProgram(ctx, *ptr); - } - - *ptr = NULL; - } - - assert(!*ptr); - if (prog) { - /*_glthread_LOCK_MUTEX(prog->Mutex);*/ - prog->RefCount++; -#if 0 - printf("Program %p ID=%u Target=%s Refcount++ to %d\n", - prog, prog->Id, - (prog->Target == GL_VERTEX_PROGRAM_ARB ? "VP" : - (prog->Target == MESA_GEOMETRY_PROGRAM ? "GP" : "FP")), - prog->RefCount); -#endif - /*_glthread_UNLOCK_MUTEX(prog->Mutex);*/ - } - - *ptr = prog; -} - - -/** - * Return a copy of a program. - * XXX Problem here if the program object is actually OO-derivation - * made by a device driver. - */ -struct gl_program * -_mesa_clone_program(struct gl_context *ctx, const struct gl_program *prog) -{ - struct gl_program *clone; - - clone = ctx->Driver.NewProgram(ctx, prog->Target, prog->Id); - if (!clone) - return NULL; - - assert(clone->Target == prog->Target); - assert(clone->RefCount == 1); - - clone->String = (GLubyte *) _mesa_strdup((char *) prog->String); - clone->Format = prog->Format; - clone->Instructions = _mesa_alloc_instructions(prog->NumInstructions); - if (!clone->Instructions) { - _mesa_reference_program(ctx, &clone, NULL); - return NULL; - } - _mesa_copy_instructions(clone->Instructions, prog->Instructions, - prog->NumInstructions); - clone->InputsRead = prog->InputsRead; - clone->OutputsWritten = prog->OutputsWritten; - clone->SamplersUsed = prog->SamplersUsed; - clone->ShadowSamplers = prog->ShadowSamplers; - memcpy(clone->TexturesUsed, prog->TexturesUsed, sizeof(prog->TexturesUsed)); - - if (prog->Parameters) - clone->Parameters = _mesa_clone_parameter_list(prog->Parameters); - memcpy(clone->LocalParams, prog->LocalParams, sizeof(clone->LocalParams)); - if (prog->Varying) - clone->Varying = _mesa_clone_parameter_list(prog->Varying); - if (prog->Attributes) - clone->Attributes = _mesa_clone_parameter_list(prog->Attributes); - memcpy(clone->LocalParams, prog->LocalParams, sizeof(clone->LocalParams)); - clone->IndirectRegisterFiles = prog->IndirectRegisterFiles; - clone->NumInstructions = prog->NumInstructions; - clone->NumTemporaries = prog->NumTemporaries; - clone->NumParameters = prog->NumParameters; - clone->NumAttributes = prog->NumAttributes; - clone->NumAddressRegs = prog->NumAddressRegs; - clone->NumNativeInstructions = prog->NumNativeInstructions; - clone->NumNativeTemporaries = prog->NumNativeTemporaries; - clone->NumNativeParameters = prog->NumNativeParameters; - clone->NumNativeAttributes = prog->NumNativeAttributes; - clone->NumNativeAddressRegs = prog->NumNativeAddressRegs; - clone->NumAluInstructions = prog->NumAluInstructions; - clone->NumTexInstructions = prog->NumTexInstructions; - clone->NumTexIndirections = prog->NumTexIndirections; - clone->NumNativeAluInstructions = prog->NumNativeAluInstructions; - clone->NumNativeTexInstructions = prog->NumNativeTexInstructions; - clone->NumNativeTexIndirections = prog->NumNativeTexIndirections; - - switch (prog->Target) { - case GL_VERTEX_PROGRAM_ARB: - { - const struct gl_vertex_program *vp - = (const struct gl_vertex_program *) prog; - struct gl_vertex_program *vpc = (struct gl_vertex_program *) clone; - vpc->IsPositionInvariant = vp->IsPositionInvariant; - vpc->IsNVProgram = vp->IsNVProgram; - } - break; - case GL_FRAGMENT_PROGRAM_ARB: - { - const struct gl_fragment_program *fp - = (const struct gl_fragment_program *) prog; - struct gl_fragment_program *fpc = (struct gl_fragment_program *) clone; - fpc->FogOption = fp->FogOption; - fpc->UsesKill = fp->UsesKill; - fpc->OriginUpperLeft = fp->OriginUpperLeft; - fpc->PixelCenterInteger = fp->PixelCenterInteger; - } - break; - case MESA_GEOMETRY_PROGRAM: - { - const struct gl_geometry_program *gp - = (const struct gl_geometry_program *) prog; - struct gl_geometry_program *gpc = (struct gl_geometry_program *) clone; - gpc->VerticesOut = gp->VerticesOut; - gpc->InputType = gp->InputType; - gpc->OutputType = gp->OutputType; - } - break; - default: - _mesa_problem(NULL, "Unexpected target in _mesa_clone_program"); - } - - return clone; -} - - -/** - * Insert 'count' NOP instructions at 'start' in the given program. - * Adjust branch targets accordingly. - */ -GLboolean -_mesa_insert_instructions(struct gl_program *prog, GLuint start, GLuint count) -{ - const GLuint origLen = prog->NumInstructions; - const GLuint newLen = origLen + count; - struct prog_instruction *newInst; - GLuint i; - - /* adjust branches */ - for (i = 0; i < prog->NumInstructions; i++) { - struct prog_instruction *inst = prog->Instructions + i; - if (inst->BranchTarget > 0) { - if ((GLuint)inst->BranchTarget >= start) { - inst->BranchTarget += count; - } - } - } - - /* Alloc storage for new instructions */ - newInst = _mesa_alloc_instructions(newLen); - if (!newInst) { - return GL_FALSE; - } - - /* Copy 'start' instructions into new instruction buffer */ - _mesa_copy_instructions(newInst, prog->Instructions, start); - - /* init the new instructions */ - _mesa_init_instructions(newInst + start, count); - - /* Copy the remaining/tail instructions to new inst buffer */ - _mesa_copy_instructions(newInst + start + count, - prog->Instructions + start, - origLen - start); - - /* free old instructions */ - _mesa_free_instructions(prog->Instructions, origLen); - - /* install new instructions */ - prog->Instructions = newInst; - prog->NumInstructions = newLen; - - return GL_TRUE; -} - -/** - * Delete 'count' instructions at 'start' in the given program. - * Adjust branch targets accordingly. - */ -GLboolean -_mesa_delete_instructions(struct gl_program *prog, GLuint start, GLuint count) -{ - const GLuint origLen = prog->NumInstructions; - const GLuint newLen = origLen - count; - struct prog_instruction *newInst; - GLuint i; - - /* adjust branches */ - for (i = 0; i < prog->NumInstructions; i++) { - struct prog_instruction *inst = prog->Instructions + i; - if (inst->BranchTarget > 0) { - if (inst->BranchTarget > (GLint) start) { - inst->BranchTarget -= count; - } - } - } - - /* Alloc storage for new instructions */ - newInst = _mesa_alloc_instructions(newLen); - if (!newInst) { - return GL_FALSE; - } - - /* Copy 'start' instructions into new instruction buffer */ - _mesa_copy_instructions(newInst, prog->Instructions, start); - - /* Copy the remaining/tail instructions to new inst buffer */ - _mesa_copy_instructions(newInst + start, - prog->Instructions + start + count, - newLen - start); - - /* free old instructions */ - _mesa_free_instructions(prog->Instructions, origLen); - - /* install new instructions */ - prog->Instructions = newInst; - prog->NumInstructions = newLen; - - return GL_TRUE; -} - - -/** - * Search instructions for registers that match (oldFile, oldIndex), - * replacing them with (newFile, newIndex). - */ -static void -replace_registers(struct prog_instruction *inst, GLuint numInst, - GLuint oldFile, GLuint oldIndex, - GLuint newFile, GLuint newIndex) -{ - GLuint i, j; - for (i = 0; i < numInst; i++) { - /* src regs */ - for (j = 0; j < _mesa_num_inst_src_regs(inst[i].Opcode); j++) { - if (inst[i].SrcReg[j].File == oldFile && - inst[i].SrcReg[j].Index == oldIndex) { - inst[i].SrcReg[j].File = newFile; - inst[i].SrcReg[j].Index = newIndex; - } - } - /* dst reg */ - if (inst[i].DstReg.File == oldFile && inst[i].DstReg.Index == oldIndex) { - inst[i].DstReg.File = newFile; - inst[i].DstReg.Index = newIndex; - } - } -} - - -/** - * Search instructions for references to program parameters. When found, - * increment the parameter index by 'offset'. - * Used when combining programs. - */ -static void -adjust_param_indexes(struct prog_instruction *inst, GLuint numInst, - GLuint offset) -{ - GLuint i, j; - for (i = 0; i < numInst; i++) { - for (j = 0; j < _mesa_num_inst_src_regs(inst[i].Opcode); j++) { - GLuint f = inst[i].SrcReg[j].File; - if (f == PROGRAM_CONSTANT || - f == PROGRAM_UNIFORM || - f == PROGRAM_STATE_VAR) { - inst[i].SrcReg[j].Index += offset; - } - } - } -} - - -/** - * Combine two programs into one. Fix instructions so the outputs of - * the first program go to the inputs of the second program. - */ -struct gl_program * -_mesa_combine_programs(struct gl_context *ctx, - const struct gl_program *progA, - const struct gl_program *progB) -{ - struct prog_instruction *newInst; - struct gl_program *newProg; - const GLuint lenA = progA->NumInstructions - 1; /* omit END instr */ - const GLuint lenB = progB->NumInstructions; - const GLuint numParamsA = _mesa_num_parameters(progA->Parameters); - const GLuint newLength = lenA + lenB; - GLboolean usedTemps[MAX_PROGRAM_TEMPS]; - GLuint firstTemp = 0; - GLbitfield inputsB; - GLuint i; - - ASSERT(progA->Target == progB->Target); - - newInst = _mesa_alloc_instructions(newLength); - if (!newInst) - return GL_FALSE; - - _mesa_copy_instructions(newInst, progA->Instructions, lenA); - _mesa_copy_instructions(newInst + lenA, progB->Instructions, lenB); - - /* adjust branch / instruction addresses for B's instructions */ - for (i = 0; i < lenB; i++) { - newInst[lenA + i].BranchTarget += lenA; - } - - newProg = ctx->Driver.NewProgram(ctx, progA->Target, 0); - newProg->Instructions = newInst; - newProg->NumInstructions = newLength; - - /* find used temp regs (we may need new temps below) */ - _mesa_find_used_registers(newProg, PROGRAM_TEMPORARY, - usedTemps, MAX_PROGRAM_TEMPS); - - if (newProg->Target == GL_FRAGMENT_PROGRAM_ARB) { - struct gl_fragment_program *fprogA, *fprogB, *newFprog; - GLbitfield progB_inputsRead = progB->InputsRead; - GLint progB_colorFile, progB_colorIndex; - - fprogA = (struct gl_fragment_program *) progA; - fprogB = (struct gl_fragment_program *) progB; - newFprog = (struct gl_fragment_program *) newProg; - - newFprog->UsesKill = fprogA->UsesKill || fprogB->UsesKill; - - /* We'll do a search and replace for instances - * of progB_colorFile/progB_colorIndex below... - */ - progB_colorFile = PROGRAM_INPUT; - progB_colorIndex = FRAG_ATTRIB_COL0; - - /* - * The fragment program may get color from a state var rather than - * a fragment input (vertex output) if it's constant. - * See the texenvprogram.c code. - * So, search the program's parameter list now to see if the program - * gets color from a state var instead of a conventional fragment - * input register. - */ - for (i = 0; i < progB->Parameters->NumParameters; i++) { - struct gl_program_parameter *p = &progB->Parameters->Parameters[i]; - if (p->Type == PROGRAM_STATE_VAR && - p->StateIndexes[0] == STATE_INTERNAL && - p->StateIndexes[1] == STATE_CURRENT_ATTRIB && - (int) p->StateIndexes[2] == (int) VERT_ATTRIB_COLOR0) { - progB_inputsRead |= FRAG_BIT_COL0; - progB_colorFile = PROGRAM_STATE_VAR; - progB_colorIndex = i; - break; - } - } - - /* Connect color outputs of fprogA to color inputs of fprogB, via a - * new temporary register. - */ - if ((progA->OutputsWritten & (1 << FRAG_RESULT_COLOR)) && - (progB_inputsRead & FRAG_BIT_COL0)) { - GLint tempReg = _mesa_find_free_register(usedTemps, MAX_PROGRAM_TEMPS, - firstTemp); - if (tempReg < 0) { - _mesa_problem(ctx, "No free temp regs found in " - "_mesa_combine_programs(), using 31"); - tempReg = 31; - } - firstTemp = tempReg + 1; - - /* replace writes to result.color[0] with tempReg */ - replace_registers(newInst, lenA, - PROGRAM_OUTPUT, FRAG_RESULT_COLOR, - PROGRAM_TEMPORARY, tempReg); - /* replace reads from the input color with tempReg */ - replace_registers(newInst + lenA, lenB, - progB_colorFile, progB_colorIndex, /* search for */ - PROGRAM_TEMPORARY, tempReg /* replace with */ ); - } - - /* compute combined program's InputsRead */ - inputsB = progB_inputsRead; - if (progA->OutputsWritten & (1 << FRAG_RESULT_COLOR)) { - inputsB &= ~(1 << FRAG_ATTRIB_COL0); - } - newProg->InputsRead = progA->InputsRead | inputsB; - newProg->OutputsWritten = progB->OutputsWritten; - newProg->SamplersUsed = progA->SamplersUsed | progB->SamplersUsed; - } - else { - /* vertex program */ - assert(0); /* XXX todo */ - } - - /* - * Merge parameters (uniforms, constants, etc) - */ - newProg->Parameters = _mesa_combine_parameter_lists(progA->Parameters, - progB->Parameters); - - adjust_param_indexes(newInst + lenA, lenB, numParamsA); - - - return newProg; -} - - -/** - * Populate the 'used' array with flags indicating which registers (TEMPs, - * INPUTs, OUTPUTs, etc, are used by the given program. - * \param file type of register to scan for - * \param used returns true/false flags for in use / free - * \param usedSize size of the 'used' array - */ -void -_mesa_find_used_registers(const struct gl_program *prog, - gl_register_file file, - GLboolean used[], GLuint usedSize) -{ - GLuint i, j; - - memset(used, 0, usedSize); - - for (i = 0; i < prog->NumInstructions; i++) { - const struct prog_instruction *inst = prog->Instructions + i; - const GLuint n = _mesa_num_inst_src_regs(inst->Opcode); - - if (inst->DstReg.File == file) { - ASSERT(inst->DstReg.Index < usedSize); - if(inst->DstReg.Index < usedSize) - used[inst->DstReg.Index] = GL_TRUE; - } - - for (j = 0; j < n; j++) { - if (inst->SrcReg[j].File == file) { - ASSERT(inst->SrcReg[j].Index < usedSize); - if(inst->SrcReg[j].Index < usedSize) - used[inst->SrcReg[j].Index] = GL_TRUE; - } - } - } -} - - -/** - * Scan the given 'used' register flag array for the first entry - * that's >= firstReg. - * \param used vector of flags indicating registers in use (as returned - * by _mesa_find_used_registers()) - * \param usedSize size of the 'used' array - * \param firstReg first register to start searching at - * \return index of unused register, or -1 if none. - */ -GLint -_mesa_find_free_register(const GLboolean used[], - GLuint usedSize, GLuint firstReg) -{ - GLuint i; - - assert(firstReg < usedSize); - - for (i = firstReg; i < usedSize; i++) - if (!used[i]) - return i; - - return -1; -} - - - -/** - * Check if the given register index is valid (doesn't exceed implementation- - * dependent limits). - * \return GL_TRUE if OK, GL_FALSE if bad index - */ -GLboolean -_mesa_valid_register_index(const struct gl_context *ctx, - gl_shader_type shaderType, - gl_register_file file, GLint index) -{ - const struct gl_program_constants *c; - - switch (shaderType) { - case MESA_SHADER_VERTEX: - c = &ctx->Const.VertexProgram; - break; - case MESA_SHADER_FRAGMENT: - c = &ctx->Const.FragmentProgram; - break; - case MESA_SHADER_GEOMETRY: - c = &ctx->Const.GeometryProgram; - break; - default: - _mesa_problem(ctx, - "unexpected shader type in _mesa_valid_register_index()"); - return GL_FALSE; - } - - switch (file) { - case PROGRAM_UNDEFINED: - return GL_TRUE; /* XXX or maybe false? */ - - case PROGRAM_TEMPORARY: - return index >= 0 && index < c->MaxTemps; - - case PROGRAM_ENV_PARAM: - return index >= 0 && index < c->MaxEnvParams; - - case PROGRAM_LOCAL_PARAM: - return index >= 0 && index < c->MaxLocalParams; - - case PROGRAM_NAMED_PARAM: - return index >= 0 && index < c->MaxParameters; - - case PROGRAM_UNIFORM: - case PROGRAM_STATE_VAR: - /* aka constant buffer */ - return index >= 0 && index < c->MaxUniformComponents / 4; - - case PROGRAM_CONSTANT: - /* constant buffer w/ possible relative negative addressing */ - return (index > (int) c->MaxUniformComponents / -4 && - index < c->MaxUniformComponents / 4); - - case PROGRAM_INPUT: - if (index < 0) - return GL_FALSE; - - switch (shaderType) { - case MESA_SHADER_VERTEX: - return index < VERT_ATTRIB_GENERIC0 + c->MaxAttribs; - case MESA_SHADER_FRAGMENT: - return index < FRAG_ATTRIB_VAR0 + ctx->Const.MaxVarying; - case MESA_SHADER_GEOMETRY: - return index < GEOM_ATTRIB_VAR0 + ctx->Const.MaxVarying; - default: - return GL_FALSE; - } - - case PROGRAM_OUTPUT: - if (index < 0) - return GL_FALSE; - - switch (shaderType) { - case MESA_SHADER_VERTEX: - return index < VERT_RESULT_VAR0 + ctx->Const.MaxVarying; - case MESA_SHADER_FRAGMENT: - return index < FRAG_RESULT_DATA0 + ctx->Const.MaxDrawBuffers; - case MESA_SHADER_GEOMETRY: - return index < GEOM_RESULT_VAR0 + ctx->Const.MaxVarying; - default: - return GL_FALSE; - } - - case PROGRAM_ADDRESS: - return index >= 0 && index < c->MaxAddressRegs; - - default: - _mesa_problem(ctx, - "unexpected register file in _mesa_valid_register_index()"); - return GL_FALSE; - } -} - - - -/** - * "Post-process" a GPU program. This is intended to be used for debugging. - * Example actions include no-op'ing instructions or changing instruction - * behaviour. - */ -void -_mesa_postprocess_program(struct gl_context *ctx, struct gl_program *prog) -{ - static const GLfloat white[4] = { 0.5, 0.5, 0.5, 0.5 }; - GLuint i; - GLuint whiteSwizzle; - GLint whiteIndex = _mesa_add_unnamed_constant(prog->Parameters, - white, 4, &whiteSwizzle); - - (void) whiteIndex; - - for (i = 0; i < prog->NumInstructions; i++) { - struct prog_instruction *inst = prog->Instructions + i; - const GLuint n = _mesa_num_inst_src_regs(inst->Opcode); - - (void) n; - - if (_mesa_is_tex_instruction(inst->Opcode)) { -#if 0 - /* replace TEX/TXP/TXB with MOV */ - inst->Opcode = OPCODE_MOV; - inst->DstReg.WriteMask = WRITEMASK_XYZW; - inst->SrcReg[0].Swizzle = SWIZZLE_XYZW; - inst->SrcReg[0].Negate = NEGATE_NONE; -#endif - -#if 0 - /* disable shadow texture mode */ - inst->TexShadow = 0; -#endif - } - - if (inst->Opcode == OPCODE_TXP) { -#if 0 - inst->Opcode = OPCODE_MOV; - inst->DstReg.WriteMask = WRITEMASK_XYZW; - inst->SrcReg[0].File = PROGRAM_CONSTANT; - inst->SrcReg[0].Index = whiteIndex; - inst->SrcReg[0].Swizzle = SWIZZLE_XYZW; - inst->SrcReg[0].Negate = NEGATE_NONE; -#endif -#if 0 - inst->TexShadow = 0; -#endif -#if 0 - inst->Opcode = OPCODE_TEX; - inst->TexShadow = 0; -#endif - } - - } -} +/* + * Mesa 3-D graphics library + * Version: 6.5.3 + * + * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file program.c + * Vertex and fragment program support functions. + * \author Brian Paul + */ + + +#include "main/glheader.h" +#include "main/context.h" +#include "main/hash.h" +#include "main/mfeatures.h" +#include "program.h" +#include "prog_cache.h" +#include "prog_parameter.h" +#include "prog_instruction.h" + + +/** + * A pointer to this dummy program is put into the hash table when + * glGenPrograms is called. + */ +struct gl_program _mesa_DummyProgram; + + +/** + * Init context's vertex/fragment program state + */ +void +_mesa_init_program(struct gl_context *ctx) +{ + GLuint i; + + /* + * If this assertion fails, we need to increase the field + * size for register indexes (see INST_INDEX_BITS). + */ + ASSERT(ctx->Const.VertexProgram.MaxUniformComponents / 4 + <= (1 << INST_INDEX_BITS)); + ASSERT(ctx->Const.FragmentProgram.MaxUniformComponents / 4 + <= (1 << INST_INDEX_BITS)); + + ASSERT(ctx->Const.VertexProgram.MaxTemps <= (1 << INST_INDEX_BITS)); + ASSERT(ctx->Const.VertexProgram.MaxLocalParams <= (1 << INST_INDEX_BITS)); + ASSERT(ctx->Const.FragmentProgram.MaxTemps <= (1 << INST_INDEX_BITS)); + ASSERT(ctx->Const.FragmentProgram.MaxLocalParams <= (1 << INST_INDEX_BITS)); + + ASSERT(ctx->Const.VertexProgram.MaxUniformComponents <= 4 * MAX_UNIFORMS); + ASSERT(ctx->Const.FragmentProgram.MaxUniformComponents <= 4 * MAX_UNIFORMS); + + ASSERT(ctx->Const.VertexProgram.MaxAddressOffset <= (1 << INST_INDEX_BITS)); + ASSERT(ctx->Const.FragmentProgram.MaxAddressOffset <= (1 << INST_INDEX_BITS)); + + /* If this fails, increase prog_instruction::TexSrcUnit size */ + ASSERT(MAX_TEXTURE_UNITS < (1 << 5)); + + /* If this fails, increase prog_instruction::TexSrcTarget size */ + ASSERT(NUM_TEXTURE_TARGETS < (1 << 3)); + + ctx->Program.ErrorPos = -1; + ctx->Program.ErrorString = _mesa_strdup(""); + +#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program + ctx->VertexProgram.Enabled = GL_FALSE; +#if FEATURE_es2_glsl + ctx->VertexProgram.PointSizeEnabled = + (ctx->API == API_OPENGLES2) ? GL_TRUE : GL_FALSE; +#else + ctx->VertexProgram.PointSizeEnabled = GL_FALSE; +#endif + ctx->VertexProgram.TwoSideEnabled = GL_FALSE; + _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, + ctx->Shared->DefaultVertexProgram); + assert(ctx->VertexProgram.Current); + for (i = 0; i < MAX_NV_VERTEX_PROGRAM_PARAMS / 4; i++) { + ctx->VertexProgram.TrackMatrix[i] = GL_NONE; + ctx->VertexProgram.TrackMatrixTransform[i] = GL_IDENTITY_NV; + } + ctx->VertexProgram.Cache = _mesa_new_program_cache(); +#endif + +#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program + ctx->FragmentProgram.Enabled = GL_FALSE; + _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, + ctx->Shared->DefaultFragmentProgram); + assert(ctx->FragmentProgram.Current); + ctx->FragmentProgram.Cache = _mesa_new_program_cache(); +#endif + +#if FEATURE_ARB_geometry_shader4 + ctx->GeometryProgram.Enabled = GL_FALSE; + /* right now by default we don't have a geometry program */ + _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current, + NULL); + ctx->GeometryProgram.Cache = _mesa_new_program_cache(); +#endif + + /* XXX probably move this stuff */ +#if FEATURE_ATI_fragment_shader + ctx->ATIFragmentShader.Enabled = GL_FALSE; + ctx->ATIFragmentShader.Current = ctx->Shared->DefaultFragmentShader; + assert(ctx->ATIFragmentShader.Current); + ctx->ATIFragmentShader.Current->RefCount++; +#endif +} + + +/** + * Free a context's vertex/fragment program state + */ +void +_mesa_free_program_data(struct gl_context *ctx) +{ +#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program + _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, NULL); + _mesa_delete_program_cache(ctx, ctx->VertexProgram.Cache); +#endif +#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program + _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, NULL); + _mesa_delete_shader_cache(ctx, ctx->FragmentProgram.Cache); +#endif +#if FEATURE_ARB_geometry_shader4 + _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current, NULL); + _mesa_delete_program_cache(ctx, ctx->GeometryProgram.Cache); +#endif + /* XXX probably move this stuff */ +#if FEATURE_ATI_fragment_shader + if (ctx->ATIFragmentShader.Current) { + ctx->ATIFragmentShader.Current->RefCount--; + if (ctx->ATIFragmentShader.Current->RefCount <= 0) { + free(ctx->ATIFragmentShader.Current); + } + } +#endif + free((void *) ctx->Program.ErrorString); +} + + +/** + * Update the default program objects in the given context to reference those + * specified in the shared state and release those referencing the old + * shared state. + */ +void +_mesa_update_default_objects_program(struct gl_context *ctx) +{ +#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program + _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, + (struct gl_vertex_program *) + ctx->Shared->DefaultVertexProgram); + assert(ctx->VertexProgram.Current); +#endif + +#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program + _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, + (struct gl_fragment_program *) + ctx->Shared->DefaultFragmentProgram); + assert(ctx->FragmentProgram.Current); +#endif + +#if FEATURE_ARB_geometry_shader4 + _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current, + (struct gl_geometry_program *) + ctx->Shared->DefaultGeometryProgram); +#endif + + /* XXX probably move this stuff */ +#if FEATURE_ATI_fragment_shader + if (ctx->ATIFragmentShader.Current) { + ctx->ATIFragmentShader.Current->RefCount--; + if (ctx->ATIFragmentShader.Current->RefCount <= 0) { + free(ctx->ATIFragmentShader.Current); + } + } + ctx->ATIFragmentShader.Current = (struct ati_fragment_shader *) ctx->Shared->DefaultFragmentShader; + assert(ctx->ATIFragmentShader.Current); + ctx->ATIFragmentShader.Current->RefCount++; +#endif +} + + +/** + * Set the vertex/fragment program error state (position and error string). + * This is generally called from within the parsers. + */ +void +_mesa_set_program_error(struct gl_context *ctx, GLint pos, const char *string) +{ + ctx->Program.ErrorPos = pos; + free((void *) ctx->Program.ErrorString); + if (!string) + string = ""; + ctx->Program.ErrorString = _mesa_strdup(string); +} + + +/** + * Find the line number and column for 'pos' within 'string'. + * Return a copy of the line which contains 'pos'. Free the line with + * free(). + * \param string the program string + * \param pos the position within the string + * \param line returns the line number corresponding to 'pos'. + * \param col returns the column number corresponding to 'pos'. + * \return copy of the line containing 'pos'. + */ +const GLubyte * +_mesa_find_line_column(const GLubyte *string, const GLubyte *pos, + GLint *line, GLint *col) +{ + const GLubyte *lineStart = string; + const GLubyte *p = string; + GLubyte *s; + int len; + + *line = 1; + + while (p != pos) { + if (*p == (GLubyte) '\n') { + (*line)++; + lineStart = p + 1; + } + p++; + } + + *col = (pos - lineStart) + 1; + + /* return copy of this line */ + while (*p != 0 && *p != '\n') + p++; + len = p - lineStart; + s = (GLubyte *) malloc(len + 1); + memcpy(s, lineStart, len); + s[len] = 0; + + return s; +} + + +/** + * Initialize a new vertex/fragment program object. + */ +static struct gl_program * +_mesa_init_program_struct( struct gl_context *ctx, struct gl_program *prog, + GLenum target, GLuint id) +{ + (void) ctx; + if (prog) { + GLuint i; + memset(prog, 0, sizeof(*prog)); + prog->Id = id; + prog->Target = target; + prog->Resident = GL_TRUE; + prog->RefCount = 1; + prog->Format = GL_PROGRAM_FORMAT_ASCII_ARB; + + /* default mapping from samplers to texture units */ + for (i = 0; i < MAX_SAMPLERS; i++) + prog->SamplerUnits[i] = i; + } + + return prog; +} + + +/** + * Initialize a new fragment program object. + */ +struct gl_program * +_mesa_init_fragment_program( struct gl_context *ctx, struct gl_fragment_program *prog, + GLenum target, GLuint id) +{ + if (prog) + return _mesa_init_program_struct( ctx, &prog->Base, target, id ); + else + return NULL; +} + + +/** + * Initialize a new vertex program object. + */ +struct gl_program * +_mesa_init_vertex_program( struct gl_context *ctx, struct gl_vertex_program *prog, + GLenum target, GLuint id) +{ + if (prog) + return _mesa_init_program_struct( ctx, &prog->Base, target, id ); + else + return NULL; +} + + +/** + * Initialize a new geometry program object. + */ +struct gl_program * +_mesa_init_geometry_program( struct gl_context *ctx, struct gl_geometry_program *prog, + GLenum target, GLuint id) +{ + if (prog) + return _mesa_init_program_struct( ctx, &prog->Base, target, id ); + else + return NULL; +} + + +/** + * Allocate and initialize a new fragment/vertex program object but + * don't put it into the program hash table. Called via + * ctx->Driver.NewProgram. May be overridden (ie. replaced) by a + * device driver function to implement OO deriviation with additional + * types not understood by this function. + * + * \param ctx context + * \param id program id/number + * \param target program target/type + * \return pointer to new program object + */ +struct gl_program * +_mesa_new_program(struct gl_context *ctx, GLenum target, GLuint id) +{ + struct gl_program *prog; + switch (target) { + case GL_VERTEX_PROGRAM_ARB: /* == GL_VERTEX_PROGRAM_NV */ + case GL_VERTEX_STATE_PROGRAM_NV: + prog = _mesa_init_vertex_program(ctx, CALLOC_STRUCT(gl_vertex_program), + target, id ); + break; + case GL_FRAGMENT_PROGRAM_NV: + case GL_FRAGMENT_PROGRAM_ARB: + prog =_mesa_init_fragment_program(ctx, + CALLOC_STRUCT(gl_fragment_program), + target, id ); + break; + case MESA_GEOMETRY_PROGRAM: + prog = _mesa_init_geometry_program(ctx, + CALLOC_STRUCT(gl_geometry_program), + target, id); + break; + default: + _mesa_problem(ctx, "bad target in _mesa_new_program"); + prog = NULL; + } + return prog; +} + + +/** + * Delete a program and remove it from the hash table, ignoring the + * reference count. + * Called via ctx->Driver.DeleteProgram. May be wrapped (OO deriviation) + * by a device driver function. + */ +void +_mesa_delete_program(struct gl_context *ctx, struct gl_program *prog) +{ + (void) ctx; + ASSERT(prog); + ASSERT(prog->RefCount==0); + + if (prog == &_mesa_DummyProgram) + return; + + if (prog->String) + free(prog->String); + + _mesa_free_instructions(prog->Instructions, prog->NumInstructions); + + if (prog->Parameters) { + _mesa_free_parameter_list(prog->Parameters); + } + if (prog->Varying) { + _mesa_free_parameter_list(prog->Varying); + } + if (prog->Attributes) { + _mesa_free_parameter_list(prog->Attributes); + } + + free(prog); +} + + +/** + * Return the gl_program object for a given ID. + * Basically just a wrapper for _mesa_HashLookup() to avoid a lot of + * casts elsewhere. + */ +struct gl_program * +_mesa_lookup_program(struct gl_context *ctx, GLuint id) +{ + if (id) + return (struct gl_program *) _mesa_HashLookup(ctx->Shared->Programs, id); + else + return NULL; +} + + +/** + * Reference counting for vertex/fragment programs + */ +void +_mesa_reference_program(struct gl_context *ctx, + struct gl_program **ptr, + struct gl_program *prog) +{ + assert(ptr); + if (*ptr && prog) { + /* sanity check */ + if ((*ptr)->Target == GL_VERTEX_PROGRAM_ARB) + ASSERT(prog->Target == GL_VERTEX_PROGRAM_ARB); + else if ((*ptr)->Target == GL_FRAGMENT_PROGRAM_ARB) + ASSERT(prog->Target == GL_FRAGMENT_PROGRAM_ARB || + prog->Target == GL_FRAGMENT_PROGRAM_NV); + else if ((*ptr)->Target == MESA_GEOMETRY_PROGRAM) + ASSERT(prog->Target == MESA_GEOMETRY_PROGRAM); + } + if (*ptr == prog) { + return; /* no change */ + } + if (*ptr) { + GLboolean deleteFlag; + + /*_glthread_LOCK_MUTEX((*ptr)->Mutex);*/ +#if 0 + printf("Program %p ID=%u Target=%s Refcount-- to %d\n", + *ptr, (*ptr)->Id, + ((*ptr)->Target == GL_VERTEX_PROGRAM_ARB ? "VP" : + ((*ptr)->Target == MESA_GEOMETRY_PROGRAM ? "GP" : "FP")), + (*ptr)->RefCount - 1); +#endif + ASSERT((*ptr)->RefCount > 0); + (*ptr)->RefCount--; + + deleteFlag = ((*ptr)->RefCount == 0); + /*_glthread_UNLOCK_MUTEX((*ptr)->Mutex);*/ + + if (deleteFlag) { + ASSERT(ctx); + ctx->Driver.DeleteProgram(ctx, *ptr); + } + + *ptr = NULL; + } + + assert(!*ptr); + if (prog) { + /*_glthread_LOCK_MUTEX(prog->Mutex);*/ + prog->RefCount++; +#if 0 + printf("Program %p ID=%u Target=%s Refcount++ to %d\n", + prog, prog->Id, + (prog->Target == GL_VERTEX_PROGRAM_ARB ? "VP" : + (prog->Target == MESA_GEOMETRY_PROGRAM ? "GP" : "FP")), + prog->RefCount); +#endif + /*_glthread_UNLOCK_MUTEX(prog->Mutex);*/ + } + + *ptr = prog; +} + + +/** + * Return a copy of a program. + * XXX Problem here if the program object is actually OO-derivation + * made by a device driver. + */ +struct gl_program * +_mesa_clone_program(struct gl_context *ctx, const struct gl_program *prog) +{ + struct gl_program *clone; + + clone = ctx->Driver.NewProgram(ctx, prog->Target, prog->Id); + if (!clone) + return NULL; + + assert(clone->Target == prog->Target); + assert(clone->RefCount == 1); + + clone->String = (GLubyte *) _mesa_strdup((char *) prog->String); + clone->Format = prog->Format; + clone->Instructions = _mesa_alloc_instructions(prog->NumInstructions); + if (!clone->Instructions) { + _mesa_reference_program(ctx, &clone, NULL); + return NULL; + } + _mesa_copy_instructions(clone->Instructions, prog->Instructions, + prog->NumInstructions); + clone->InputsRead = prog->InputsRead; + clone->OutputsWritten = prog->OutputsWritten; + clone->SamplersUsed = prog->SamplersUsed; + clone->ShadowSamplers = prog->ShadowSamplers; + memcpy(clone->TexturesUsed, prog->TexturesUsed, sizeof(prog->TexturesUsed)); + + if (prog->Parameters) + clone->Parameters = _mesa_clone_parameter_list(prog->Parameters); + memcpy(clone->LocalParams, prog->LocalParams, sizeof(clone->LocalParams)); + if (prog->Varying) + clone->Varying = _mesa_clone_parameter_list(prog->Varying); + if (prog->Attributes) + clone->Attributes = _mesa_clone_parameter_list(prog->Attributes); + memcpy(clone->LocalParams, prog->LocalParams, sizeof(clone->LocalParams)); + clone->IndirectRegisterFiles = prog->IndirectRegisterFiles; + clone->NumInstructions = prog->NumInstructions; + clone->NumTemporaries = prog->NumTemporaries; + clone->NumParameters = prog->NumParameters; + clone->NumAttributes = prog->NumAttributes; + clone->NumAddressRegs = prog->NumAddressRegs; + clone->NumNativeInstructions = prog->NumNativeInstructions; + clone->NumNativeTemporaries = prog->NumNativeTemporaries; + clone->NumNativeParameters = prog->NumNativeParameters; + clone->NumNativeAttributes = prog->NumNativeAttributes; + clone->NumNativeAddressRegs = prog->NumNativeAddressRegs; + clone->NumAluInstructions = prog->NumAluInstructions; + clone->NumTexInstructions = prog->NumTexInstructions; + clone->NumTexIndirections = prog->NumTexIndirections; + clone->NumNativeAluInstructions = prog->NumNativeAluInstructions; + clone->NumNativeTexInstructions = prog->NumNativeTexInstructions; + clone->NumNativeTexIndirections = prog->NumNativeTexIndirections; + + switch (prog->Target) { + case GL_VERTEX_PROGRAM_ARB: + { + const struct gl_vertex_program *vp + = (const struct gl_vertex_program *) prog; + struct gl_vertex_program *vpc = (struct gl_vertex_program *) clone; + vpc->IsPositionInvariant = vp->IsPositionInvariant; + vpc->IsNVProgram = vp->IsNVProgram; + } + break; + case GL_FRAGMENT_PROGRAM_ARB: + { + const struct gl_fragment_program *fp + = (const struct gl_fragment_program *) prog; + struct gl_fragment_program *fpc = (struct gl_fragment_program *) clone; + fpc->FogOption = fp->FogOption; + fpc->UsesKill = fp->UsesKill; + fpc->OriginUpperLeft = fp->OriginUpperLeft; + fpc->PixelCenterInteger = fp->PixelCenterInteger; + } + break; + case MESA_GEOMETRY_PROGRAM: + { + const struct gl_geometry_program *gp + = (const struct gl_geometry_program *) prog; + struct gl_geometry_program *gpc = (struct gl_geometry_program *) clone; + gpc->VerticesOut = gp->VerticesOut; + gpc->InputType = gp->InputType; + gpc->OutputType = gp->OutputType; + } + break; + default: + _mesa_problem(NULL, "Unexpected target in _mesa_clone_program"); + } + + return clone; +} + + +/** + * Insert 'count' NOP instructions at 'start' in the given program. + * Adjust branch targets accordingly. + */ +GLboolean +_mesa_insert_instructions(struct gl_program *prog, GLuint start, GLuint count) +{ + const GLuint origLen = prog->NumInstructions; + const GLuint newLen = origLen + count; + struct prog_instruction *newInst; + GLuint i; + + /* adjust branches */ + for (i = 0; i < prog->NumInstructions; i++) { + struct prog_instruction *inst = prog->Instructions + i; + if (inst->BranchTarget > 0) { + if ((GLuint)inst->BranchTarget >= start) { + inst->BranchTarget += count; + } + } + } + + /* Alloc storage for new instructions */ + newInst = _mesa_alloc_instructions(newLen); + if (!newInst) { + return GL_FALSE; + } + + /* Copy 'start' instructions into new instruction buffer */ + _mesa_copy_instructions(newInst, prog->Instructions, start); + + /* init the new instructions */ + _mesa_init_instructions(newInst + start, count); + + /* Copy the remaining/tail instructions to new inst buffer */ + _mesa_copy_instructions(newInst + start + count, + prog->Instructions + start, + origLen - start); + + /* free old instructions */ + _mesa_free_instructions(prog->Instructions, origLen); + + /* install new instructions */ + prog->Instructions = newInst; + prog->NumInstructions = newLen; + + return GL_TRUE; +} + +/** + * Delete 'count' instructions at 'start' in the given program. + * Adjust branch targets accordingly. + */ +GLboolean +_mesa_delete_instructions(struct gl_program *prog, GLuint start, GLuint count) +{ + const GLuint origLen = prog->NumInstructions; + const GLuint newLen = origLen - count; + struct prog_instruction *newInst; + GLuint i; + + /* adjust branches */ + for (i = 0; i < prog->NumInstructions; i++) { + struct prog_instruction *inst = prog->Instructions + i; + if (inst->BranchTarget > 0) { + if (inst->BranchTarget > (GLint) start) { + inst->BranchTarget -= count; + } + } + } + + /* Alloc storage for new instructions */ + newInst = _mesa_alloc_instructions(newLen); + if (!newInst) { + return GL_FALSE; + } + + /* Copy 'start' instructions into new instruction buffer */ + _mesa_copy_instructions(newInst, prog->Instructions, start); + + /* Copy the remaining/tail instructions to new inst buffer */ + _mesa_copy_instructions(newInst + start, + prog->Instructions + start + count, + newLen - start); + + /* free old instructions */ + _mesa_free_instructions(prog->Instructions, origLen); + + /* install new instructions */ + prog->Instructions = newInst; + prog->NumInstructions = newLen; + + return GL_TRUE; +} + + +/** + * Search instructions for registers that match (oldFile, oldIndex), + * replacing them with (newFile, newIndex). + */ +static void +replace_registers(struct prog_instruction *inst, GLuint numInst, + GLuint oldFile, GLuint oldIndex, + GLuint newFile, GLuint newIndex) +{ + GLuint i, j; + for (i = 0; i < numInst; i++) { + /* src regs */ + for (j = 0; j < _mesa_num_inst_src_regs(inst[i].Opcode); j++) { + if (inst[i].SrcReg[j].File == oldFile && + inst[i].SrcReg[j].Index == oldIndex) { + inst[i].SrcReg[j].File = newFile; + inst[i].SrcReg[j].Index = newIndex; + } + } + /* dst reg */ + if (inst[i].DstReg.File == oldFile && inst[i].DstReg.Index == oldIndex) { + inst[i].DstReg.File = newFile; + inst[i].DstReg.Index = newIndex; + } + } +} + + +/** + * Search instructions for references to program parameters. When found, + * increment the parameter index by 'offset'. + * Used when combining programs. + */ +static void +adjust_param_indexes(struct prog_instruction *inst, GLuint numInst, + GLuint offset) +{ + GLuint i, j; + for (i = 0; i < numInst; i++) { + for (j = 0; j < _mesa_num_inst_src_regs(inst[i].Opcode); j++) { + GLuint f = inst[i].SrcReg[j].File; + if (f == PROGRAM_CONSTANT || + f == PROGRAM_UNIFORM || + f == PROGRAM_STATE_VAR) { + inst[i].SrcReg[j].Index += offset; + } + } + } +} + + +/** + * Combine two programs into one. Fix instructions so the outputs of + * the first program go to the inputs of the second program. + */ +struct gl_program * +_mesa_combine_programs(struct gl_context *ctx, + const struct gl_program *progA, + const struct gl_program *progB) +{ + struct prog_instruction *newInst; + struct gl_program *newProg; + const GLuint lenA = progA->NumInstructions - 1; /* omit END instr */ + const GLuint lenB = progB->NumInstructions; + const GLuint numParamsA = _mesa_num_parameters(progA->Parameters); + const GLuint newLength = lenA + lenB; + GLboolean usedTemps[MAX_PROGRAM_TEMPS]; + GLuint firstTemp = 0; + GLbitfield inputsB; + GLuint i; + + ASSERT(progA->Target == progB->Target); + + newInst = _mesa_alloc_instructions(newLength); + if (!newInst) + return GL_FALSE; + + _mesa_copy_instructions(newInst, progA->Instructions, lenA); + _mesa_copy_instructions(newInst + lenA, progB->Instructions, lenB); + + /* adjust branch / instruction addresses for B's instructions */ + for (i = 0; i < lenB; i++) { + newInst[lenA + i].BranchTarget += lenA; + } + + newProg = ctx->Driver.NewProgram(ctx, progA->Target, 0); + newProg->Instructions = newInst; + newProg->NumInstructions = newLength; + + /* find used temp regs (we may need new temps below) */ + _mesa_find_used_registers(newProg, PROGRAM_TEMPORARY, + usedTemps, MAX_PROGRAM_TEMPS); + + if (newProg->Target == GL_FRAGMENT_PROGRAM_ARB) { + struct gl_fragment_program *fprogA, *fprogB, *newFprog; + GLbitfield progB_inputsRead = progB->InputsRead; + GLint progB_colorFile, progB_colorIndex; + + fprogA = (struct gl_fragment_program *) progA; + fprogB = (struct gl_fragment_program *) progB; + newFprog = (struct gl_fragment_program *) newProg; + + newFprog->UsesKill = fprogA->UsesKill || fprogB->UsesKill; + + /* We'll do a search and replace for instances + * of progB_colorFile/progB_colorIndex below... + */ + progB_colorFile = PROGRAM_INPUT; + progB_colorIndex = FRAG_ATTRIB_COL0; + + /* + * The fragment program may get color from a state var rather than + * a fragment input (vertex output) if it's constant. + * See the texenvprogram.c code. + * So, search the program's parameter list now to see if the program + * gets color from a state var instead of a conventional fragment + * input register. + */ + for (i = 0; i < progB->Parameters->NumParameters; i++) { + struct gl_program_parameter *p = &progB->Parameters->Parameters[i]; + if (p->Type == PROGRAM_STATE_VAR && + p->StateIndexes[0] == STATE_INTERNAL && + p->StateIndexes[1] == STATE_CURRENT_ATTRIB && + (int) p->StateIndexes[2] == (int) VERT_ATTRIB_COLOR0) { + progB_inputsRead |= FRAG_BIT_COL0; + progB_colorFile = PROGRAM_STATE_VAR; + progB_colorIndex = i; + break; + } + } + + /* Connect color outputs of fprogA to color inputs of fprogB, via a + * new temporary register. + */ + if ((progA->OutputsWritten & (1 << FRAG_RESULT_COLOR)) && + (progB_inputsRead & FRAG_BIT_COL0)) { + GLint tempReg = _mesa_find_free_register(usedTemps, MAX_PROGRAM_TEMPS, + firstTemp); + if (tempReg < 0) { + _mesa_problem(ctx, "No free temp regs found in " + "_mesa_combine_programs(), using 31"); + tempReg = 31; + } + firstTemp = tempReg + 1; + + /* replace writes to result.color[0] with tempReg */ + replace_registers(newInst, lenA, + PROGRAM_OUTPUT, FRAG_RESULT_COLOR, + PROGRAM_TEMPORARY, tempReg); + /* replace reads from the input color with tempReg */ + replace_registers(newInst + lenA, lenB, + progB_colorFile, progB_colorIndex, /* search for */ + PROGRAM_TEMPORARY, tempReg /* replace with */ ); + } + + /* compute combined program's InputsRead */ + inputsB = progB_inputsRead; + if (progA->OutputsWritten & (1 << FRAG_RESULT_COLOR)) { + inputsB &= ~(1 << FRAG_ATTRIB_COL0); + } + newProg->InputsRead = progA->InputsRead | inputsB; + newProg->OutputsWritten = progB->OutputsWritten; + newProg->SamplersUsed = progA->SamplersUsed | progB->SamplersUsed; + } + else { + /* vertex program */ + assert(0); /* XXX todo */ + } + + /* + * Merge parameters (uniforms, constants, etc) + */ + newProg->Parameters = _mesa_combine_parameter_lists(progA->Parameters, + progB->Parameters); + + adjust_param_indexes(newInst + lenA, lenB, numParamsA); + + + return newProg; +} + + +/** + * Populate the 'used' array with flags indicating which registers (TEMPs, + * INPUTs, OUTPUTs, etc, are used by the given program. + * \param file type of register to scan for + * \param used returns true/false flags for in use / free + * \param usedSize size of the 'used' array + */ +void +_mesa_find_used_registers(const struct gl_program *prog, + gl_register_file file, + GLboolean used[], GLuint usedSize) +{ + GLuint i, j; + + memset(used, 0, usedSize); + + for (i = 0; i < prog->NumInstructions; i++) { + const struct prog_instruction *inst = prog->Instructions + i; + const GLuint n = _mesa_num_inst_src_regs(inst->Opcode); + + if (inst->DstReg.File == file) { + ASSERT(inst->DstReg.Index < usedSize); + if(inst->DstReg.Index < usedSize) + used[inst->DstReg.Index] = GL_TRUE; + } + + for (j = 0; j < n; j++) { + if (inst->SrcReg[j].File == file) { + ASSERT(inst->SrcReg[j].Index < usedSize); + if(inst->SrcReg[j].Index < usedSize) + used[inst->SrcReg[j].Index] = GL_TRUE; + } + } + } +} + + +/** + * Scan the given 'used' register flag array for the first entry + * that's >= firstReg. + * \param used vector of flags indicating registers in use (as returned + * by _mesa_find_used_registers()) + * \param usedSize size of the 'used' array + * \param firstReg first register to start searching at + * \return index of unused register, or -1 if none. + */ +GLint +_mesa_find_free_register(const GLboolean used[], + GLuint usedSize, GLuint firstReg) +{ + GLuint i; + + assert(firstReg < usedSize); + + for (i = firstReg; i < usedSize; i++) + if (!used[i]) + return i; + + return -1; +} + + + +/** + * Check if the given register index is valid (doesn't exceed implementation- + * dependent limits). + * \return GL_TRUE if OK, GL_FALSE if bad index + */ +GLboolean +_mesa_valid_register_index(const struct gl_context *ctx, + gl_shader_type shaderType, + gl_register_file file, GLint index) +{ + const struct gl_program_constants *c; + + switch (shaderType) { + case MESA_SHADER_VERTEX: + c = &ctx->Const.VertexProgram; + break; + case MESA_SHADER_FRAGMENT: + c = &ctx->Const.FragmentProgram; + break; + case MESA_SHADER_GEOMETRY: + c = &ctx->Const.GeometryProgram; + break; + default: + _mesa_problem(ctx, + "unexpected shader type in _mesa_valid_register_index()"); + return GL_FALSE; + } + + switch (file) { + case PROGRAM_UNDEFINED: + return GL_TRUE; /* XXX or maybe false? */ + + case PROGRAM_TEMPORARY: + return index >= 0 && index < c->MaxTemps; + + case PROGRAM_ENV_PARAM: + return index >= 0 && index < c->MaxEnvParams; + + case PROGRAM_LOCAL_PARAM: + return index >= 0 && index < c->MaxLocalParams; + + case PROGRAM_NAMED_PARAM: + return index >= 0 && index < c->MaxParameters; + + case PROGRAM_UNIFORM: + case PROGRAM_STATE_VAR: + /* aka constant buffer */ + return index >= 0 && index < c->MaxUniformComponents / 4; + + case PROGRAM_CONSTANT: + /* constant buffer w/ possible relative negative addressing */ + return (index > (int) c->MaxUniformComponents / -4 && + index < c->MaxUniformComponents / 4); + + case PROGRAM_INPUT: + if (index < 0) + return GL_FALSE; + + switch (shaderType) { + case MESA_SHADER_VERTEX: + return index < VERT_ATTRIB_GENERIC0 + c->MaxAttribs; + case MESA_SHADER_FRAGMENT: + return index < FRAG_ATTRIB_VAR0 + ctx->Const.MaxVarying; + case MESA_SHADER_GEOMETRY: + return index < GEOM_ATTRIB_VAR0 + ctx->Const.MaxVarying; + default: + return GL_FALSE; + } + + case PROGRAM_OUTPUT: + if (index < 0) + return GL_FALSE; + + switch (shaderType) { + case MESA_SHADER_VERTEX: + return index < VERT_RESULT_VAR0 + ctx->Const.MaxVarying; + case MESA_SHADER_FRAGMENT: + return index < FRAG_RESULT_DATA0 + ctx->Const.MaxDrawBuffers; + case MESA_SHADER_GEOMETRY: + return index < GEOM_RESULT_VAR0 + ctx->Const.MaxVarying; + default: + return GL_FALSE; + } + + case PROGRAM_ADDRESS: + return index >= 0 && index < c->MaxAddressRegs; + + default: + _mesa_problem(ctx, + "unexpected register file in _mesa_valid_register_index()"); + return GL_FALSE; + } +} + + + +/** + * "Post-process" a GPU program. This is intended to be used for debugging. + * Example actions include no-op'ing instructions or changing instruction + * behaviour. + */ +void +_mesa_postprocess_program(struct gl_context *ctx, struct gl_program *prog) +{ + static const GLfloat white[4] = { 0.5, 0.5, 0.5, 0.5 }; + GLuint i; + GLuint whiteSwizzle; + GLint whiteIndex = _mesa_add_unnamed_constant(prog->Parameters, + white, 4, &whiteSwizzle); + + (void) whiteIndex; + + for (i = 0; i < prog->NumInstructions; i++) { + struct prog_instruction *inst = prog->Instructions + i; + const GLuint n = _mesa_num_inst_src_regs(inst->Opcode); + + (void) n; + + if (_mesa_is_tex_instruction(inst->Opcode)) { +#if 0 + /* replace TEX/TXP/TXB with MOV */ + inst->Opcode = OPCODE_MOV; + inst->DstReg.WriteMask = WRITEMASK_XYZW; + inst->SrcReg[0].Swizzle = SWIZZLE_XYZW; + inst->SrcReg[0].Negate = NEGATE_NONE; +#endif + +#if 0 + /* disable shadow texture mode */ + inst->TexShadow = 0; +#endif + } + + if (inst->Opcode == OPCODE_TXP) { +#if 0 + inst->Opcode = OPCODE_MOV; + inst->DstReg.WriteMask = WRITEMASK_XYZW; + inst->SrcReg[0].File = PROGRAM_CONSTANT; + inst->SrcReg[0].Index = whiteIndex; + inst->SrcReg[0].Swizzle = SWIZZLE_XYZW; + inst->SrcReg[0].Negate = NEGATE_NONE; +#endif +#if 0 + inst->TexShadow = 0; +#endif +#if 0 + inst->Opcode = OPCODE_TEX; + inst->TexShadow = 0; +#endif + } + + } +} diff --git a/mesalib/src/mesa/sources.mak b/mesalib/src/mesa/sources.mak index 95330947a..70171ea0b 100644 --- a/mesalib/src/mesa/sources.mak +++ b/mesalib/src/mesa/sources.mak @@ -1,372 +1,376 @@ -### Lists of source files, included by Makefiles - -# this is part of MAIN_SOURCES -MAIN_ES_SOURCES = \ - main/api_exec_es1.c \ - main/api_exec_es2.c - -MAIN_SOURCES = \ - main/api_arrayelt.c \ - main/api_exec.c \ - main/api_loopback.c \ - main/api_noop.c \ - main/api_validate.c \ - main/accum.c \ - main/arbprogram.c \ - main/atifragshader.c \ - main/attrib.c \ - main/arrayobj.c \ - main/blend.c \ - main/bufferobj.c \ - main/buffers.c \ - main/clear.c \ - main/clip.c \ - main/colortab.c \ - main/condrender.c \ - main/context.c \ - main/convolve.c \ - main/cpuinfo.c \ - main/debug.c \ - main/depth.c \ - main/depthstencil.c \ - main/dlist.c \ - main/dlopen.c \ - main/drawpix.c \ - main/drawtex.c \ - main/enable.c \ - main/enums.c \ - main/eval.c \ - main/execmem.c \ - main/extensions.c \ - main/fbobject.c \ - main/feedback.c \ - main/ffvertex_prog.c \ - main/fog.c \ - main/formats.c \ - main/framebuffer.c \ - main/get.c \ - main/getstring.c \ - main/hash.c \ - main/hint.c \ - main/histogram.c \ - main/image.c \ - main/imports.c \ - main/light.c \ - main/lines.c \ - main/matrix.c \ - main/mipmap.c \ - main/mm.c \ - main/multisample.c \ - main/nvprogram.c \ - main/pack.c \ - main/pbo.c \ - main/pixel.c \ - main/pixelstore.c \ - main/pixeltransfer.c \ - main/points.c \ - main/polygon.c \ - main/queryobj.c \ - main/querymatrix.c \ - main/rastpos.c \ - main/readpix.c \ - main/remap.c \ - main/renderbuffer.c \ - main/scissor.c \ - main/shaderapi.c \ - main/shaderobj.c \ - main/shared.c \ - main/state.c \ - main/stencil.c \ - main/syncobj.c \ - main/texcompress.c \ - main/texcompress_rgtc.c \ - main/texcompress_s3tc.c \ - main/texcompress_fxt1.c \ - main/texenv.c \ - main/texenvprogram.c \ - main/texfetch.c \ - main/texformat.c \ - main/texgen.c \ - main/texgetimage.c \ - main/teximage.c \ - main/texobj.c \ - main/texpal.c \ - main/texparam.c \ - main/texrender.c \ - main/texstate.c \ - main/texstore.c \ - main/transformfeedback.c \ - main/uniforms.c \ - main/varray.c \ - main/version.c \ - main/viewport.c \ - main/vtxfmt.c \ - $(MAIN_ES_SOURCES) - -MATH_SOURCES = \ - math/m_debug_clip.c \ - math/m_debug_norm.c \ - math/m_debug_xform.c \ - math/m_eval.c \ - math/m_matrix.c \ - math/m_translate.c \ - math/m_vector.c - -MATH_XFORM_SOURCES = \ - math/m_xform.c - -SWRAST_SOURCES = \ - swrast/s_aaline.c \ - swrast/s_aatriangle.c \ - swrast/s_accum.c \ - swrast/s_alpha.c \ - swrast/s_atifragshader.c \ - swrast/s_bitmap.c \ - swrast/s_blend.c \ - swrast/s_blit.c \ - swrast/s_clear.c \ - swrast/s_copypix.c \ - swrast/s_context.c \ - swrast/s_depth.c \ - swrast/s_drawpix.c \ - swrast/s_feedback.c \ - swrast/s_fog.c \ - swrast/s_fragprog.c \ - swrast/s_lines.c \ - swrast/s_logic.c \ - swrast/s_masking.c \ - swrast/s_points.c \ - swrast/s_readpix.c \ - swrast/s_span.c \ - swrast/s_stencil.c \ - swrast/s_texcombine.c \ - swrast/s_texfilter.c \ - swrast/s_triangle.c \ - swrast/s_zoom.c - -SWRAST_SETUP_SOURCES = \ - swrast_setup/ss_context.c \ - swrast_setup/ss_triangle.c - -TNL_SOURCES = \ - tnl/t_context.c \ - tnl/t_pipeline.c \ - tnl/t_draw.c \ - tnl/t_rasterpos.c \ - tnl/t_vb_program.c \ - tnl/t_vb_render.c \ - tnl/t_vb_texgen.c \ - tnl/t_vb_texmat.c \ - tnl/t_vb_vertex.c \ - tnl/t_vb_fog.c \ - tnl/t_vb_light.c \ - tnl/t_vb_normals.c \ - tnl/t_vb_points.c \ - tnl/t_vp_build.c \ - tnl/t_vertex.c \ - tnl/t_vertex_sse.c \ - tnl/t_vertex_generic.c - -VBO_SOURCES = \ - vbo/vbo_context.c \ - vbo/vbo_exec.c \ - vbo/vbo_exec_api.c \ - vbo/vbo_exec_array.c \ - vbo/vbo_exec_draw.c \ - vbo/vbo_exec_eval.c \ - vbo/vbo_rebase.c \ - vbo/vbo_split.c \ - vbo/vbo_split_copy.c \ - vbo/vbo_split_inplace.c \ - vbo/vbo_save.c \ - vbo/vbo_save_api.c \ - vbo/vbo_save_draw.c \ - vbo/vbo_save_loopback.c - -STATETRACKER_SOURCES = \ - state_tracker/st_atom.c \ - state_tracker/st_atom_blend.c \ - state_tracker/st_atom_clip.c \ - state_tracker/st_atom_constbuf.c \ - state_tracker/st_atom_depth.c \ - state_tracker/st_atom_framebuffer.c \ - state_tracker/st_atom_msaa.c \ - state_tracker/st_atom_pixeltransfer.c \ - state_tracker/st_atom_sampler.c \ - state_tracker/st_atom_scissor.c \ - state_tracker/st_atom_shader.c \ - state_tracker/st_atom_rasterizer.c \ - state_tracker/st_atom_stipple.c \ - state_tracker/st_atom_texture.c \ - state_tracker/st_atom_viewport.c \ - state_tracker/st_cb_accum.c \ - state_tracker/st_cb_bitmap.c \ - state_tracker/st_cb_blit.c \ - state_tracker/st_cb_bufferobjects.c \ - state_tracker/st_cb_clear.c \ - state_tracker/st_cb_condrender.c \ - state_tracker/st_cb_flush.c \ - state_tracker/st_cb_drawpixels.c \ - state_tracker/st_cb_drawtex.c \ - state_tracker/st_cb_eglimage.c \ - state_tracker/st_cb_fbo.c \ - state_tracker/st_cb_feedback.c \ - state_tracker/st_cb_program.c \ - state_tracker/st_cb_queryobj.c \ - state_tracker/st_cb_rasterpos.c \ - state_tracker/st_cb_readpixels.c \ - state_tracker/st_cb_syncobj.c \ - state_tracker/st_cb_strings.c \ - state_tracker/st_cb_texture.c \ - state_tracker/st_cb_viewport.c \ - state_tracker/st_cb_xformfb.c \ - state_tracker/st_context.c \ - state_tracker/st_debug.c \ - state_tracker/st_draw.c \ - state_tracker/st_draw_feedback.c \ - state_tracker/st_extensions.c \ - state_tracker/st_format.c \ - state_tracker/st_gen_mipmap.c \ - state_tracker/st_manager.c \ - state_tracker/st_mesa_to_tgsi.c \ - state_tracker/st_program.c \ - state_tracker/st_texture.c - -PROGRAM_SOURCES = \ - program/arbprogparse.c \ - program/hash_table.c \ - program/lex.yy.c \ - program/nvfragparse.c \ - program/nvvertparse.c \ - program/program.c \ - program/program_parse.tab.c \ - program/program_parse_extra.c \ - program/prog_cache.c \ - program/prog_execute.c \ - program/prog_instruction.c \ - program/prog_noise.c \ - program/prog_optimize.c \ - program/prog_parameter.c \ - program/prog_parameter_layout.c \ - program/prog_print.c \ - program/prog_statevars.c \ - program/prog_uniform.c \ - program/programopt.c \ - program/register_allocate.c \ - program/symbol_table.c - - -SHADER_CXX_SOURCES = \ - program/ir_to_mesa.cpp \ - program/sampler.cpp - -ASM_C_SOURCES = \ - x86/common_x86.c \ - x86/x86_xform.c \ - x86/3dnow.c \ - x86/sse.c \ - x86/rtasm/x86sse.c \ - sparc/sparc.c \ - ppc/common_ppc.c \ - x86-64/x86-64.c - -X86_SOURCES = \ - x86/common_x86_asm.S \ - x86/x86_xform2.S \ - x86/x86_xform3.S \ - x86/x86_xform4.S \ - x86/x86_cliptest.S \ - x86/mmx_blend.S \ - x86/3dnow_xform1.S \ - x86/3dnow_xform2.S \ - x86/3dnow_xform3.S \ - x86/3dnow_xform4.S \ - x86/3dnow_normal.S \ - x86/sse_xform1.S \ - x86/sse_xform2.S \ - x86/sse_xform3.S \ - x86/sse_xform4.S \ - x86/sse_normal.S \ - x86/read_rgba_span_x86.S - -X86-64_SOURCES = \ - x86-64/xform4.S - -SPARC_SOURCES = \ - sparc/clip.S \ - sparc/norm.S \ - sparc/xform.S - -COMMON_DRIVER_SOURCES = \ - drivers/common/driverfuncs.c \ - drivers/common/meta.c - - -# Sources for building non-Gallium drivers -MESA_SOURCES = \ - $(MAIN_SOURCES) \ - $(MATH_SOURCES) \ - $(MATH_XFORM_SOURCES) \ - $(VBO_SOURCES) \ - $(TNL_SOURCES) \ - $(PROGRAM_SOURCES) \ - $(SWRAST_SOURCES) \ - $(SWRAST_SETUP_SOURCES) \ - $(COMMON_DRIVER_SOURCES)\ - $(ASM_C_SOURCES) - -MESA_CXX_SOURCES = \ - $(SHADER_CXX_SOURCES) - -# Sources for building Gallium drivers -MESA_GALLIUM_SOURCES = \ - $(MAIN_SOURCES) \ - $(MATH_SOURCES) \ - $(VBO_SOURCES) \ - $(STATETRACKER_SOURCES) \ - $(PROGRAM_SOURCES) \ - ppc/common_ppc.c \ - x86/common_x86.c - -MESA_GALLIUM_CXX_SOURCES = \ - $(SHADER_CXX_SOURCES) - -# All the core C sources, for dependency checking -ALL_SOURCES = \ - $(MESA_SOURCES) \ - $(MESA_CXX_SOURCES) \ - $(MESA_ASM_SOURCES) \ - $(STATETRACKER_SOURCES) - - -### Object files - -MESA_OBJECTS = \ - $(MESA_SOURCES:.c=.o) \ - $(MESA_CXX_SOURCES:.cpp=.o) \ - $(MESA_ASM_SOURCES:.S=.o) - -MESA_GALLIUM_OBJECTS = \ - $(MESA_GALLIUM_SOURCES:.c=.o) \ - $(MESA_GALLIUM_CXX_SOURCES:.cpp=.o) \ - $(MESA_ASM_SOURCES:.S=.o) - - -COMMON_DRIVER_OBJECTS = $(COMMON_DRIVER_SOURCES:.c=.o) - - -### Other archives/libraries - -GLSL_LIBS = \ - $(TOP)/src/glsl/libglsl.a - - -### Include directories - -INCLUDE_DIRS = \ - -I$(TOP)/include \ - -I$(TOP)/src/glsl \ - -I$(TOP)/src/mesa \ - -I$(TOP)/src/mapi \ - -I$(TOP)/src/gallium/include \ - -I$(TOP)/src/gallium/auxiliary +### Lists of source files, included by Makefiles + +# this is part of MAIN_SOURCES +MAIN_ES_SOURCES = \ + main/api_exec_es1.c \ + main/api_exec_es2.c + +MAIN_SOURCES = \ + main/api_arrayelt.c \ + main/api_exec.c \ + main/api_loopback.c \ + main/api_noop.c \ + main/api_validate.c \ + main/accum.c \ + main/arbprogram.c \ + main/atifragshader.c \ + main/attrib.c \ + main/arrayobj.c \ + main/blend.c \ + main/bufferobj.c \ + main/buffers.c \ + main/clear.c \ + main/clip.c \ + main/colortab.c \ + main/condrender.c \ + main/context.c \ + main/convolve.c \ + main/cpuinfo.c \ + main/debug.c \ + main/depth.c \ + main/depthstencil.c \ + main/dlist.c \ + main/dlopen.c \ + main/drawpix.c \ + main/drawtex.c \ + main/enable.c \ + main/enums.c \ + main/eval.c \ + main/execmem.c \ + main/extensions.c \ + main/fbobject.c \ + main/feedback.c \ + main/ffvertex_prog.c \ + main/fog.c \ + main/formats.c \ + main/framebuffer.c \ + main/get.c \ + main/getstring.c \ + main/hash.c \ + main/hint.c \ + main/histogram.c \ + main/image.c \ + main/imports.c \ + main/light.c \ + main/lines.c \ + main/matrix.c \ + main/mipmap.c \ + main/mm.c \ + main/multisample.c \ + main/nvprogram.c \ + main/pack.c \ + main/pbo.c \ + main/pixel.c \ + main/pixelstore.c \ + main/pixeltransfer.c \ + main/points.c \ + main/polygon.c \ + main/queryobj.c \ + main/querymatrix.c \ + main/rastpos.c \ + main/readpix.c \ + main/remap.c \ + main/renderbuffer.c \ + main/scissor.c \ + main/shaderapi.c \ + main/shaderobj.c \ + main/shared.c \ + main/state.c \ + main/stencil.c \ + main/syncobj.c \ + main/texcompress.c \ + main/texcompress_rgtc.c \ + main/texcompress_s3tc.c \ + main/texcompress_fxt1.c \ + main/texenv.c \ + main/texfetch.c \ + main/texformat.c \ + main/texgen.c \ + main/texgetimage.c \ + main/teximage.c \ + main/texobj.c \ + main/texpal.c \ + main/texparam.c \ + main/texrender.c \ + main/texstate.c \ + main/texstore.c \ + main/transformfeedback.c \ + main/uniforms.c \ + main/varray.c \ + main/version.c \ + main/viewport.c \ + main/vtxfmt.c \ + $(MAIN_ES_SOURCES) + +MAIN_CXX_SOURCES = \ + main/ff_fragment_shader.cpp + +MATH_SOURCES = \ + math/m_debug_clip.c \ + math/m_debug_norm.c \ + math/m_debug_xform.c \ + math/m_eval.c \ + math/m_matrix.c \ + math/m_translate.c \ + math/m_vector.c + +MATH_XFORM_SOURCES = \ + math/m_xform.c + +SWRAST_SOURCES = \ + swrast/s_aaline.c \ + swrast/s_aatriangle.c \ + swrast/s_accum.c \ + swrast/s_alpha.c \ + swrast/s_atifragshader.c \ + swrast/s_bitmap.c \ + swrast/s_blend.c \ + swrast/s_blit.c \ + swrast/s_clear.c \ + swrast/s_copypix.c \ + swrast/s_context.c \ + swrast/s_depth.c \ + swrast/s_drawpix.c \ + swrast/s_feedback.c \ + swrast/s_fog.c \ + swrast/s_fragprog.c \ + swrast/s_lines.c \ + swrast/s_logic.c \ + swrast/s_masking.c \ + swrast/s_points.c \ + swrast/s_readpix.c \ + swrast/s_span.c \ + swrast/s_stencil.c \ + swrast/s_texcombine.c \ + swrast/s_texfilter.c \ + swrast/s_triangle.c \ + swrast/s_zoom.c + +SWRAST_SETUP_SOURCES = \ + swrast_setup/ss_context.c \ + swrast_setup/ss_triangle.c + +TNL_SOURCES = \ + tnl/t_context.c \ + tnl/t_pipeline.c \ + tnl/t_draw.c \ + tnl/t_rasterpos.c \ + tnl/t_vb_program.c \ + tnl/t_vb_render.c \ + tnl/t_vb_texgen.c \ + tnl/t_vb_texmat.c \ + tnl/t_vb_vertex.c \ + tnl/t_vb_fog.c \ + tnl/t_vb_light.c \ + tnl/t_vb_normals.c \ + tnl/t_vb_points.c \ + tnl/t_vp_build.c \ + tnl/t_vertex.c \ + tnl/t_vertex_sse.c \ + tnl/t_vertex_generic.c + +VBO_SOURCES = \ + vbo/vbo_context.c \ + vbo/vbo_exec.c \ + vbo/vbo_exec_api.c \ + vbo/vbo_exec_array.c \ + vbo/vbo_exec_draw.c \ + vbo/vbo_exec_eval.c \ + vbo/vbo_rebase.c \ + vbo/vbo_split.c \ + vbo/vbo_split_copy.c \ + vbo/vbo_split_inplace.c \ + vbo/vbo_save.c \ + vbo/vbo_save_api.c \ + vbo/vbo_save_draw.c \ + vbo/vbo_save_loopback.c + +STATETRACKER_SOURCES = \ + state_tracker/st_atom.c \ + state_tracker/st_atom_blend.c \ + state_tracker/st_atom_clip.c \ + state_tracker/st_atom_constbuf.c \ + state_tracker/st_atom_depth.c \ + state_tracker/st_atom_framebuffer.c \ + state_tracker/st_atom_msaa.c \ + state_tracker/st_atom_pixeltransfer.c \ + state_tracker/st_atom_sampler.c \ + state_tracker/st_atom_scissor.c \ + state_tracker/st_atom_shader.c \ + state_tracker/st_atom_rasterizer.c \ + state_tracker/st_atom_stipple.c \ + state_tracker/st_atom_texture.c \ + state_tracker/st_atom_viewport.c \ + state_tracker/st_cb_accum.c \ + state_tracker/st_cb_bitmap.c \ + state_tracker/st_cb_blit.c \ + state_tracker/st_cb_bufferobjects.c \ + state_tracker/st_cb_clear.c \ + state_tracker/st_cb_condrender.c \ + state_tracker/st_cb_flush.c \ + state_tracker/st_cb_drawpixels.c \ + state_tracker/st_cb_drawtex.c \ + state_tracker/st_cb_eglimage.c \ + state_tracker/st_cb_fbo.c \ + state_tracker/st_cb_feedback.c \ + state_tracker/st_cb_program.c \ + state_tracker/st_cb_queryobj.c \ + state_tracker/st_cb_rasterpos.c \ + state_tracker/st_cb_readpixels.c \ + state_tracker/st_cb_syncobj.c \ + state_tracker/st_cb_strings.c \ + state_tracker/st_cb_texture.c \ + state_tracker/st_cb_viewport.c \ + state_tracker/st_cb_xformfb.c \ + state_tracker/st_context.c \ + state_tracker/st_debug.c \ + state_tracker/st_draw.c \ + state_tracker/st_draw_feedback.c \ + state_tracker/st_extensions.c \ + state_tracker/st_format.c \ + state_tracker/st_gen_mipmap.c \ + state_tracker/st_manager.c \ + state_tracker/st_mesa_to_tgsi.c \ + state_tracker/st_program.c \ + state_tracker/st_texture.c + +PROGRAM_SOURCES = \ + program/arbprogparse.c \ + program/hash_table.c \ + program/lex.yy.c \ + program/nvfragparse.c \ + program/nvvertparse.c \ + program/program.c \ + program/program_parse.tab.c \ + program/program_parse_extra.c \ + program/prog_cache.c \ + program/prog_execute.c \ + program/prog_instruction.c \ + program/prog_noise.c \ + program/prog_optimize.c \ + program/prog_parameter.c \ + program/prog_parameter_layout.c \ + program/prog_print.c \ + program/prog_statevars.c \ + program/prog_uniform.c \ + program/programopt.c \ + program/register_allocate.c \ + program/symbol_table.c + + +SHADER_CXX_SOURCES = \ + program/ir_to_mesa.cpp \ + program/sampler.cpp + +ASM_C_SOURCES = \ + x86/common_x86.c \ + x86/x86_xform.c \ + x86/3dnow.c \ + x86/sse.c \ + x86/rtasm/x86sse.c \ + sparc/sparc.c \ + ppc/common_ppc.c \ + x86-64/x86-64.c + +X86_SOURCES = \ + x86/common_x86_asm.S \ + x86/x86_xform2.S \ + x86/x86_xform3.S \ + x86/x86_xform4.S \ + x86/x86_cliptest.S \ + x86/mmx_blend.S \ + x86/3dnow_xform1.S \ + x86/3dnow_xform2.S \ + x86/3dnow_xform3.S \ + x86/3dnow_xform4.S \ + x86/3dnow_normal.S \ + x86/sse_xform1.S \ + x86/sse_xform2.S \ + x86/sse_xform3.S \ + x86/sse_xform4.S \ + x86/sse_normal.S \ + x86/read_rgba_span_x86.S + +X86-64_SOURCES = \ + x86-64/xform4.S + +SPARC_SOURCES = \ + sparc/clip.S \ + sparc/norm.S \ + sparc/xform.S + +COMMON_DRIVER_SOURCES = \ + drivers/common/driverfuncs.c \ + drivers/common/meta.c + + +# Sources for building non-Gallium drivers +MESA_SOURCES = \ + $(MAIN_SOURCES) \ + $(MATH_SOURCES) \ + $(MATH_XFORM_SOURCES) \ + $(VBO_SOURCES) \ + $(TNL_SOURCES) \ + $(PROGRAM_SOURCES) \ + $(SWRAST_SOURCES) \ + $(SWRAST_SETUP_SOURCES) \ + $(COMMON_DRIVER_SOURCES)\ + $(ASM_C_SOURCES) + +MESA_CXX_SOURCES = \ + $(MAIN_CXX_SOURCES) \ + $(SHADER_CXX_SOURCES) + +# Sources for building Gallium drivers +MESA_GALLIUM_SOURCES = \ + $(MAIN_SOURCES) \ + $(MATH_SOURCES) \ + $(VBO_SOURCES) \ + $(STATETRACKER_SOURCES) \ + $(PROGRAM_SOURCES) \ + ppc/common_ppc.c \ + x86/common_x86.c + +MESA_GALLIUM_CXX_SOURCES = \ + $(MAIN_CXX_SOURCES) \ + $(SHADER_CXX_SOURCES) + +# All the core C sources, for dependency checking +ALL_SOURCES = \ + $(MESA_SOURCES) \ + $(MESA_CXX_SOURCES) \ + $(MESA_ASM_SOURCES) \ + $(STATETRACKER_SOURCES) + + +### Object files + +MESA_OBJECTS = \ + $(MESA_SOURCES:.c=.o) \ + $(MESA_CXX_SOURCES:.cpp=.o) \ + $(MESA_ASM_SOURCES:.S=.o) + +MESA_GALLIUM_OBJECTS = \ + $(MESA_GALLIUM_SOURCES:.c=.o) \ + $(MESA_GALLIUM_CXX_SOURCES:.cpp=.o) \ + $(MESA_ASM_SOURCES:.S=.o) + + +COMMON_DRIVER_OBJECTS = $(COMMON_DRIVER_SOURCES:.c=.o) + + +### Other archives/libraries + +GLSL_LIBS = \ + $(TOP)/src/glsl/libglsl.a + + +### Include directories + +INCLUDE_DIRS = \ + -I$(TOP)/include \ + -I$(TOP)/src/glsl \ + -I$(TOP)/src/mesa \ + -I$(TOP)/src/mapi \ + -I$(TOP)/src/gallium/include \ + -I$(TOP)/src/gallium/auxiliary diff --git a/mesalib/src/mesa/state_tracker/st_cb_bitmap.c b/mesalib/src/mesa/state_tracker/st_cb_bitmap.c index 149f1ca44..f49c03b46 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_bitmap.c +++ b/mesalib/src/mesa/state_tracker/st_cb_bitmap.c @@ -1,894 +1,894 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - - /* - * Authors: - * Brian Paul - */ - -#include "main/imports.h" -#include "main/image.h" -#include "main/bufferobj.h" -#include "main/macros.h" -#include "main/mfeatures.h" -#include "main/pbo.h" -#include "program/program.h" -#include "program/prog_print.h" - -#include "st_context.h" -#include "st_atom.h" -#include "st_atom_constbuf.h" -#include "st_program.h" -#include "st_cb_bitmap.h" -#include "st_texture.h" - -#include "pipe/p_context.h" -#include "pipe/p_defines.h" -#include "pipe/p_shader_tokens.h" -#include "util/u_inlines.h" -#include "util/u_draw_quad.h" -#include "util/u_simple_shaders.h" -#include "program/prog_instruction.h" -#include "cso_cache/cso_context.h" - - -#if FEATURE_drawpix - -/** - * glBitmaps are drawn as textured quads. The user's bitmap pattern - * is stored in a texture image. An alpha8 texture format is used. - * The fragment shader samples a bit (texel) from the texture, then - * discards the fragment if the bit is off. - * - * Note that we actually store the inverse image of the bitmap to - * simplify the fragment program. An "on" bit gets stored as texel=0x0 - * and an "off" bit is stored as texel=0xff. Then we kill the - * fragment if the negated texel value is less than zero. - */ - - -/** - * The bitmap cache attempts to accumulate multiple glBitmap calls in a - * buffer which is then rendered en mass upon a flush, state change, etc. - * A wide, short buffer is used to target the common case of a series - * of glBitmap calls being used to draw text. - */ -static GLboolean UseBitmapCache = GL_TRUE; - - -#define BITMAP_CACHE_WIDTH 512 -#define BITMAP_CACHE_HEIGHT 32 - -struct bitmap_cache -{ - /** Window pos to render the cached image */ - GLint xpos, ypos; - /** Bounds of region used in window coords */ - GLint xmin, ymin, xmax, ymax; - - GLfloat color[4]; - - /** Bitmap's Z position */ - GLfloat zpos; - - struct pipe_resource *texture; - struct pipe_transfer *trans; - - GLboolean empty; - - /** An I8 texture image: */ - ubyte *buffer; -}; - - -/** Epsilon for Z comparisons */ -#define Z_EPSILON 1e-06 - - -/** - * Make fragment program for glBitmap: - * Sample the texture and kill the fragment if the bit is 0. - * This program will be combined with the user's fragment program. - */ -static struct st_fragment_program * -make_bitmap_fragment_program(struct gl_context *ctx, GLuint samplerIndex) -{ - struct st_context *st = st_context(ctx); - struct st_fragment_program *stfp; - struct gl_program *p; - GLuint ic = 0; - - p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); - if (!p) - return NULL; - - p->NumInstructions = 3; - - p->Instructions = _mesa_alloc_instructions(p->NumInstructions); - if (!p->Instructions) { - ctx->Driver.DeleteProgram(ctx, p); - return NULL; - } - _mesa_init_instructions(p->Instructions, p->NumInstructions); - - /* TEX tmp0, fragment.texcoord[0], texture[0], 2D; */ - p->Instructions[ic].Opcode = OPCODE_TEX; - p->Instructions[ic].DstReg.File = PROGRAM_TEMPORARY; - p->Instructions[ic].DstReg.Index = 0; - p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; - p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; - p->Instructions[ic].TexSrcUnit = samplerIndex; - p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; - ic++; - - /* KIL if -tmp0 < 0 # texel=0 -> keep / texel=0 -> discard */ - p->Instructions[ic].Opcode = OPCODE_KIL; - p->Instructions[ic].SrcReg[0].File = PROGRAM_TEMPORARY; - - if (st->bitmap.tex_format == PIPE_FORMAT_L8_UNORM) - p->Instructions[ic].SrcReg[0].Swizzle = SWIZZLE_XXXX; - - p->Instructions[ic].SrcReg[0].Index = 0; - p->Instructions[ic].SrcReg[0].Negate = NEGATE_XYZW; - ic++; - - /* END; */ - p->Instructions[ic++].Opcode = OPCODE_END; - - assert(ic == p->NumInstructions); - - p->InputsRead = FRAG_BIT_TEX0; - p->OutputsWritten = 0x0; - p->SamplersUsed = (1 << samplerIndex); - - stfp = (struct st_fragment_program *) p; - stfp->Base.UsesKill = GL_TRUE; - - return stfp; -} - - -static int -find_free_bit(uint bitfield) -{ - int i; - for (i = 0; i < 32; i++) { - if ((bitfield & (1 << i)) == 0) { - return i; - } - } - return -1; -} - - -/** - * Combine basic bitmap fragment program with the user-defined program. - * \param st current context - * \param fpIn the incoming fragment program - * \param fpOut the new fragment program which does fragment culling - * \param bitmap_sampler sampler number for the bitmap texture - */ -void -st_make_bitmap_fragment_program(struct st_context *st, - struct gl_fragment_program *fpIn, - struct gl_fragment_program **fpOut, - GLuint *bitmap_sampler) -{ - struct st_fragment_program *bitmap_prog; - struct gl_program *newProg; - uint sampler; - - /* - * Generate new program which is the user-defined program prefixed - * with the bitmap sampler/kill instructions. - */ - sampler = find_free_bit(fpIn->Base.SamplersUsed); - bitmap_prog = make_bitmap_fragment_program(st->ctx, sampler); - - newProg = _mesa_combine_programs(st->ctx, - &bitmap_prog->Base.Base, - &fpIn->Base); - /* done with this after combining */ - st_reference_fragprog(st, &bitmap_prog, NULL); - -#if 0 - { - printf("Combined bitmap program:\n"); - _mesa_print_program(newProg); - printf("InputsRead: 0x%x\n", newProg->InputsRead); - printf("OutputsWritten: 0x%x\n", newProg->OutputsWritten); - _mesa_print_parameter_list(newProg->Parameters); - } -#endif - - /* return results */ - *fpOut = (struct gl_fragment_program *) newProg; - *bitmap_sampler = sampler; -} - - -/** - * Copy user-provide bitmap bits into texture buffer, expanding - * bits into texels. - * "On" bits will set texels to 0x0. - * "Off" bits will not modify texels. - * Note that the image is actually going to be upside down in - * the texture. We deal with that with texcoords. - */ -static void -unpack_bitmap(struct st_context *st, - GLint px, GLint py, GLsizei width, GLsizei height, - const struct gl_pixelstore_attrib *unpack, - const GLubyte *bitmap, - ubyte *destBuffer, uint destStride) -{ - destBuffer += py * destStride + px; - - _mesa_expand_bitmap(width, height, unpack, bitmap, - destBuffer, destStride, 0x0); -} - - -/** - * Create a texture which represents a bitmap image. - */ -static struct pipe_resource * -make_bitmap_texture(struct gl_context *ctx, GLsizei width, GLsizei height, - const struct gl_pixelstore_attrib *unpack, - const GLubyte *bitmap) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct pipe_transfer *transfer; - ubyte *dest; - struct pipe_resource *pt; - - /* PBO source... */ - bitmap = _mesa_map_pbo_source(ctx, unpack, bitmap); - if (!bitmap) { - return NULL; - } - - /** - * Create texture to hold bitmap pattern. - */ - pt = st_texture_create(st, st->internal_target, st->bitmap.tex_format, - 0, width, height, 1, 1, - PIPE_BIND_SAMPLER_VIEW); - if (!pt) { - _mesa_unmap_pbo_source(ctx, unpack); - return NULL; - } - - transfer = pipe_get_transfer(st->pipe, pt, 0, 0, - PIPE_TRANSFER_WRITE, - 0, 0, width, height); - - dest = pipe_transfer_map(pipe, transfer); - - /* Put image into texture transfer */ - memset(dest, 0xff, height * transfer->stride); - unpack_bitmap(st, 0, 0, width, height, unpack, bitmap, - dest, transfer->stride); - - _mesa_unmap_pbo_source(ctx, unpack); - - /* Release transfer */ - pipe_transfer_unmap(pipe, transfer); - pipe->transfer_destroy(pipe, transfer); - - return pt; -} - -static GLuint -setup_bitmap_vertex_data(struct st_context *st, bool normalized, - int x, int y, int width, int height, - float z, const float color[4]) -{ - struct pipe_context *pipe = st->pipe; - const struct gl_framebuffer *fb = st->ctx->DrawBuffer; - const GLfloat fb_width = (GLfloat)fb->Width; - const GLfloat fb_height = (GLfloat)fb->Height; - const GLfloat x0 = (GLfloat)x; - const GLfloat x1 = (GLfloat)(x + width); - const GLfloat y0 = (GLfloat)y; - const GLfloat y1 = (GLfloat)(y + height); - GLfloat sLeft = (GLfloat)0.0, sRight = (GLfloat)1.0; - GLfloat tTop = (GLfloat)0.0, tBot = (GLfloat)1.0 - tTop; - const GLfloat clip_x0 = (GLfloat)(x0 / fb_width * 2.0 - 1.0); - const GLfloat clip_y0 = (GLfloat)(y0 / fb_height * 2.0 - 1.0); - const GLfloat clip_x1 = (GLfloat)(x1 / fb_width * 2.0 - 1.0); - const GLfloat clip_y1 = (GLfloat)(y1 / fb_height * 2.0 - 1.0); - const GLuint max_slots = 1; /* 4096 / sizeof(st->bitmap.vertices); */ - GLuint i; - - if(!normalized) - { - sRight = width; - tBot = height; - } - - /* XXX: Need to improve buffer_write to allow NO_WAIT (as well as - * no_flush) updates to buffers where we know there is no conflict - * with previous data. Currently using max_slots > 1 will cause - * synchronous rendering if the driver flushes its command buffers - * between one bitmap and the next. Our flush hook below isn't - * sufficient to catch this as the driver doesn't tell us when it - * flushes its own command buffers. Until this gets fixed, pay the - * price of allocating a new buffer for each bitmap cache-flush to - * avoid synchronous rendering. - */ - if (st->bitmap.vbuf_slot >= max_slots) { - pipe_resource_reference(&st->bitmap.vbuf, NULL); - st->bitmap.vbuf_slot = 0; - } - - if (!st->bitmap.vbuf) { - st->bitmap.vbuf = pipe_buffer_create(pipe->screen, - PIPE_BIND_VERTEX_BUFFER, - PIPE_USAGE_STREAM, - max_slots * - sizeof(st->bitmap.vertices)); - } - - /* Positions are in clip coords since we need to do clipping in case - * the bitmap quad goes beyond the window bounds. - */ - st->bitmap.vertices[0][0][0] = clip_x0; - st->bitmap.vertices[0][0][1] = clip_y0; - st->bitmap.vertices[0][2][0] = sLeft; - st->bitmap.vertices[0][2][1] = tTop; - - st->bitmap.vertices[1][0][0] = clip_x1; - st->bitmap.vertices[1][0][1] = clip_y0; - st->bitmap.vertices[1][2][0] = sRight; - st->bitmap.vertices[1][2][1] = tTop; - - st->bitmap.vertices[2][0][0] = clip_x1; - st->bitmap.vertices[2][0][1] = clip_y1; - st->bitmap.vertices[2][2][0] = sRight; - st->bitmap.vertices[2][2][1] = tBot; - - st->bitmap.vertices[3][0][0] = clip_x0; - st->bitmap.vertices[3][0][1] = clip_y1; - st->bitmap.vertices[3][2][0] = sLeft; - st->bitmap.vertices[3][2][1] = tBot; - - /* same for all verts: */ - for (i = 0; i < 4; i++) { - st->bitmap.vertices[i][0][2] = z; - st->bitmap.vertices[i][0][3] = 1.0; - st->bitmap.vertices[i][1][0] = color[0]; - st->bitmap.vertices[i][1][1] = color[1]; - st->bitmap.vertices[i][1][2] = color[2]; - st->bitmap.vertices[i][1][3] = color[3]; - st->bitmap.vertices[i][2][2] = 0.0; /*R*/ - st->bitmap.vertices[i][2][3] = 1.0; /*Q*/ - } - - /* put vertex data into vbuf */ - pipe_buffer_write_nooverlap(st->pipe, - st->bitmap.vbuf, - st->bitmap.vbuf_slot - * sizeof(st->bitmap.vertices), - sizeof st->bitmap.vertices, - st->bitmap.vertices); - - return st->bitmap.vbuf_slot++ * sizeof st->bitmap.vertices; -} - - - -/** - * Render a glBitmap by drawing a textured quad - */ -static void -draw_bitmap_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z, - GLsizei width, GLsizei height, - struct pipe_sampler_view *sv, - const GLfloat *color) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct cso_context *cso = st->cso_context; - struct st_fp_variant *fpv; - struct st_fp_variant_key key; - GLuint maxSize; - GLuint offset; - - memset(&key, 0, sizeof(key)); - key.st = st; - key.bitmap = GL_TRUE; - - fpv = st_get_fp_variant(st, st->fp, &key); - - /* As an optimization, Mesa's fragment programs will sometimes get the - * primary color from a statevar/constant rather than a varying variable. - * when that's the case, we need to ensure that we use the 'color' - * parameter and not the current attribute color (which may have changed - * through glRasterPos and state validation. - * So, we force the proper color here. Not elegant, but it works. - */ - { - GLfloat colorSave[4]; - COPY_4V(colorSave, ctx->Current.Attrib[VERT_ATTRIB_COLOR0]); - COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], color); - st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT); - COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], colorSave); - } - - - /* limit checks */ - /* XXX if the bitmap is larger than the max texture size, break - * it up into chunks. - */ - maxSize = 1 << (pipe->screen->get_param(pipe->screen, - PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); - assert(width <= (GLsizei)maxSize); - assert(height <= (GLsizei)maxSize); - - cso_save_rasterizer(cso); - cso_save_samplers(cso); - cso_save_fragment_sampler_views(cso); - cso_save_viewport(cso); - cso_save_fragment_shader(cso); - cso_save_vertex_shader(cso); - cso_save_vertex_elements(cso); - cso_save_vertex_buffers(cso); - - /* rasterizer state: just scissor */ - st->bitmap.rasterizer.scissor = ctx->Scissor.Enabled; - cso_set_rasterizer(cso, &st->bitmap.rasterizer); - - /* fragment shader state: TEX lookup program */ - cso_set_fragment_shader_handle(cso, fpv->driver_shader); - - /* vertex shader state: position + texcoord pass-through */ - cso_set_vertex_shader_handle(cso, st->bitmap.vs); - - /* user samplers, plus our bitmap sampler */ - { - struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS]; - uint num = MAX2(fpv->bitmap_sampler + 1, st->state.num_samplers); - uint i; - for (i = 0; i < st->state.num_samplers; i++) { - samplers[i] = &st->state.samplers[i]; - } - samplers[fpv->bitmap_sampler] = - &st->bitmap.samplers[sv->texture->target != PIPE_TEXTURE_RECT]; - cso_set_samplers(cso, num, (const struct pipe_sampler_state **) samplers); - } - - /* user textures, plus the bitmap texture */ - { - struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS]; - uint num = MAX2(fpv->bitmap_sampler + 1, st->state.num_textures); - memcpy(sampler_views, st->state.sampler_views, sizeof(sampler_views)); - sampler_views[fpv->bitmap_sampler] = sv; - cso_set_fragment_sampler_views(cso, num, sampler_views); - } - - /* viewport state: viewport matching window dims */ - { - const struct gl_framebuffer *fb = st->ctx->DrawBuffer; - const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP); - const GLfloat width = (GLfloat)fb->Width; - const GLfloat height = (GLfloat)fb->Height; - struct pipe_viewport_state vp; - vp.scale[0] = 0.5f * width; - vp.scale[1] = height * (invert ? -0.5f : 0.5f); - vp.scale[2] = 0.5f; - vp.scale[3] = 1.0f; - vp.translate[0] = 0.5f * width; - vp.translate[1] = 0.5f * height; - vp.translate[2] = 0.5f; - vp.translate[3] = 0.0f; - cso_set_viewport(cso, &vp); - } - - cso_set_vertex_elements(cso, 3, st->velems_util_draw); - - /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */ - z = z * 2.0 - 1.0; - - /* draw textured quad */ - offset = setup_bitmap_vertex_data(st, - sv->texture->target != PIPE_TEXTURE_RECT, - x, y, width, height, z, color); - - util_draw_vertex_buffer(pipe, st->cso_context, st->bitmap.vbuf, offset, - PIPE_PRIM_TRIANGLE_FAN, - 4, /* verts */ - 3); /* attribs/vert */ - - - /* restore state */ - cso_restore_rasterizer(cso); - cso_restore_samplers(cso); - cso_restore_fragment_sampler_views(cso); - cso_restore_viewport(cso); - cso_restore_fragment_shader(cso); - cso_restore_vertex_shader(cso); - cso_restore_vertex_elements(cso); - cso_restore_vertex_buffers(cso); -} - - -static void -reset_cache(struct st_context *st) -{ - struct pipe_context *pipe = st->pipe; - struct bitmap_cache *cache = st->bitmap.cache; - - /*memset(cache->buffer, 0xff, sizeof(cache->buffer));*/ - cache->empty = GL_TRUE; - - cache->xmin = 1000000; - cache->xmax = -1000000; - cache->ymin = 1000000; - cache->ymax = -1000000; - - if (cache->trans) { - pipe->transfer_destroy(pipe, cache->trans); - cache->trans = NULL; - } - - assert(!cache->texture); - - /* allocate a new texture */ - cache->texture = st_texture_create(st, PIPE_TEXTURE_2D, - st->bitmap.tex_format, 0, - BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, - 1, 1, - PIPE_BIND_SAMPLER_VIEW); -} - - -/** Print bitmap image to stdout (debug) */ -static void -print_cache(const struct bitmap_cache *cache) -{ - int i, j, k; - - for (i = 0; i < BITMAP_CACHE_HEIGHT; i++) { - k = BITMAP_CACHE_WIDTH * (BITMAP_CACHE_HEIGHT - i - 1); - for (j = 0; j < BITMAP_CACHE_WIDTH; j++) { - if (cache->buffer[k]) - printf("X"); - else - printf(" "); - k++; - } - printf("\n"); - } -} - - -/** - * Create gallium pipe_transfer object for the bitmap cache. - */ -static void -create_cache_trans(struct st_context *st) -{ - struct pipe_context *pipe = st->pipe; - struct bitmap_cache *cache = st->bitmap.cache; - - if (cache->trans) - return; - - /* Map the texture transfer. - * Subsequent glBitmap calls will write into the texture image. - */ - cache->trans = pipe_get_transfer(st->pipe, cache->texture, 0, 0, - PIPE_TRANSFER_WRITE, 0, 0, - BITMAP_CACHE_WIDTH, - BITMAP_CACHE_HEIGHT); - cache->buffer = pipe_transfer_map(pipe, cache->trans); - - /* init image to all 0xff */ - memset(cache->buffer, 0xff, cache->trans->stride * BITMAP_CACHE_HEIGHT); -} - - -/** - * If there's anything in the bitmap cache, draw/flush it now. - */ -void -st_flush_bitmap_cache(struct st_context *st) -{ - if (!st->bitmap.cache->empty) { - struct bitmap_cache *cache = st->bitmap.cache; - - if (st->ctx->DrawBuffer) { - struct pipe_context *pipe = st->pipe; - struct pipe_sampler_view *sv; - - assert(cache->xmin <= cache->xmax); - -/* printf("flush size %d x %d at %d, %d\n", - cache->xmax - cache->xmin, - cache->ymax - cache->ymin, - cache->xpos, cache->ypos); -*/ - - /* The texture transfer has been mapped until now. - * So unmap and release the texture transfer before drawing. - */ - if (cache->trans) { - if (0) - print_cache(cache); - pipe_transfer_unmap(pipe, cache->trans); - cache->buffer = NULL; - - pipe->transfer_destroy(pipe, cache->trans); - cache->trans = NULL; - } - - sv = st_create_texture_sampler_view(st->pipe, cache->texture); - if (sv) { - draw_bitmap_quad(st->ctx, - cache->xpos, - cache->ypos, - cache->zpos, - BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, - sv, - cache->color); - - pipe_sampler_view_reference(&sv, NULL); - } - } - - /* release/free the texture */ - pipe_resource_reference(&cache->texture, NULL); - - reset_cache(st); - } -} - - -/** - * Flush bitmap cache and release vertex buffer. - */ -void -st_flush_bitmap( struct st_context *st ) -{ - st_flush_bitmap_cache(st); - - /* Release vertex buffer to avoid synchronous rendering if we were - * to map it in the next frame. - */ - pipe_resource_reference(&st->bitmap.vbuf, NULL); - st->bitmap.vbuf_slot = 0; -} - - -/** - * Try to accumulate this glBitmap call in the bitmap cache. - * \return GL_TRUE for success, GL_FALSE if bitmap is too large, etc. - */ -static GLboolean -accum_bitmap(struct st_context *st, - GLint x, GLint y, GLsizei width, GLsizei height, - const struct gl_pixelstore_attrib *unpack, - const GLubyte *bitmap ) -{ - struct bitmap_cache *cache = st->bitmap.cache; - int px = -999, py = -999; - const GLfloat z = st->ctx->Current.RasterPos[2]; - - if (width > BITMAP_CACHE_WIDTH || - height > BITMAP_CACHE_HEIGHT) - return GL_FALSE; /* too big to cache */ - - if (!cache->empty) { - px = x - cache->xpos; /* pos in buffer */ - py = y - cache->ypos; - if (px < 0 || px + width > BITMAP_CACHE_WIDTH || - py < 0 || py + height > BITMAP_CACHE_HEIGHT || - !TEST_EQ_4V(st->ctx->Current.RasterColor, cache->color) || - ((fabs(z - cache->zpos) > Z_EPSILON))) { - /* This bitmap would extend beyond cache bounds, or the bitmap - * color is changing - * so flush and continue. - */ - st_flush_bitmap_cache(st); - } - } - - if (cache->empty) { - /* Initialize. Center bitmap vertically in the buffer. */ - px = 0; - py = (BITMAP_CACHE_HEIGHT - height) / 2; - cache->xpos = x; - cache->ypos = y - py; - cache->zpos = z; - cache->empty = GL_FALSE; - COPY_4FV(cache->color, st->ctx->Current.RasterColor); - } - - assert(px != -999); - assert(py != -999); - - if (x < cache->xmin) - cache->xmin = x; - if (y < cache->ymin) - cache->ymin = y; - if (x + width > cache->xmax) - cache->xmax = x + width; - if (y + height > cache->ymax) - cache->ymax = y + height; - - /* create the transfer if needed */ - create_cache_trans(st); - - unpack_bitmap(st, px, py, width, height, unpack, bitmap, - cache->buffer, BITMAP_CACHE_WIDTH); - - return GL_TRUE; /* accumulated */ -} - - - -/** - * Called via ctx->Driver.Bitmap() - */ -static void -st_Bitmap(struct gl_context *ctx, GLint x, GLint y, - GLsizei width, GLsizei height, - const struct gl_pixelstore_attrib *unpack, const GLubyte *bitmap ) -{ - struct st_context *st = st_context(ctx); - struct pipe_resource *pt; - - if (width == 0 || height == 0) - return; - - st_validate_state(st); - - if (!st->bitmap.vs) { - /* create pass-through vertex shader now */ - const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, - TGSI_SEMANTIC_COLOR, - TGSI_SEMANTIC_GENERIC }; - const uint semantic_indexes[] = { 0, 0, 0 }; - st->bitmap.vs = util_make_vertex_passthrough_shader(st->pipe, 3, - semantic_names, - semantic_indexes); - } - - if (UseBitmapCache && accum_bitmap(st, x, y, width, height, unpack, bitmap)) - return; - - pt = make_bitmap_texture(ctx, width, height, unpack, bitmap); - if (pt) { - struct pipe_sampler_view *sv = - st_create_texture_sampler_view(st->pipe, pt); - - assert(pt->target == PIPE_TEXTURE_2D || pt->target == PIPE_TEXTURE_RECT); - - if (sv) { - draw_bitmap_quad(ctx, x, y, ctx->Current.RasterPos[2], - width, height, sv, - st->ctx->Current.RasterColor); - - pipe_sampler_view_reference(&sv, NULL); - } - - /* release/free the texture */ - pipe_resource_reference(&pt, NULL); - } -} - - -/** Per-context init */ -void -st_init_bitmap_functions(struct dd_function_table *functions) -{ - functions->Bitmap = st_Bitmap; -} - - -/** Per-context init */ -void -st_init_bitmap(struct st_context *st) -{ - struct pipe_sampler_state *sampler = &st->bitmap.samplers[0]; - struct pipe_context *pipe = st->pipe; - struct pipe_screen *screen = pipe->screen; - - /* init sampler state once */ - memset(sampler, 0, sizeof(*sampler)); - sampler->wrap_s = PIPE_TEX_WRAP_CLAMP; - sampler->wrap_t = PIPE_TEX_WRAP_CLAMP; - sampler->wrap_r = PIPE_TEX_WRAP_CLAMP; - sampler->min_img_filter = PIPE_TEX_FILTER_NEAREST; - sampler->min_mip_filter = PIPE_TEX_MIPFILTER_NONE; - sampler->mag_img_filter = PIPE_TEX_FILTER_NEAREST; - st->bitmap.samplers[1] = *sampler; - st->bitmap.samplers[1].normalized_coords = 1; - - /* init baseline rasterizer state once */ - memset(&st->bitmap.rasterizer, 0, sizeof(st->bitmap.rasterizer)); - st->bitmap.rasterizer.gl_rasterization_rules = 1; - - /* find a usable texture format */ - if (screen->is_format_supported(screen, PIPE_FORMAT_I8_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0)) { - st->bitmap.tex_format = PIPE_FORMAT_I8_UNORM; - } - else if (screen->is_format_supported(screen, PIPE_FORMAT_A8_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0)) { - st->bitmap.tex_format = PIPE_FORMAT_A8_UNORM; - } - else if (screen->is_format_supported(screen, PIPE_FORMAT_L8_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0)) { - st->bitmap.tex_format = PIPE_FORMAT_L8_UNORM; - } - else { - /* XXX support more formats */ - assert(0); - } - - /* alloc bitmap cache object */ - st->bitmap.cache = ST_CALLOC_STRUCT(bitmap_cache); - - reset_cache(st); -} - - -/** Per-context tear-down */ -void -st_destroy_bitmap(struct st_context *st) -{ - struct pipe_context *pipe = st->pipe; - struct bitmap_cache *cache = st->bitmap.cache; - - if (st->bitmap.vs) { - cso_delete_vertex_shader(st->cso_context, st->bitmap.vs); - st->bitmap.vs = NULL; - } - - if (st->bitmap.vbuf) { - pipe_resource_reference(&st->bitmap.vbuf, NULL); - st->bitmap.vbuf = NULL; - } - - if (cache) { - if (cache->trans) { - pipe_transfer_unmap(pipe, cache->trans); - pipe->transfer_destroy(pipe, cache->trans); - } - pipe_resource_reference(&st->bitmap.cache->texture, NULL); - free(st->bitmap.cache); - st->bitmap.cache = NULL; - } -} - -#endif /* FEATURE_drawpix */ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Brian Paul + */ + +#include "main/imports.h" +#include "main/image.h" +#include "main/bufferobj.h" +#include "main/macros.h" +#include "main/mfeatures.h" +#include "main/pbo.h" +#include "program/program.h" +#include "program/prog_print.h" + +#include "st_context.h" +#include "st_atom.h" +#include "st_atom_constbuf.h" +#include "st_program.h" +#include "st_cb_bitmap.h" +#include "st_texture.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_shader_tokens.h" +#include "util/u_inlines.h" +#include "util/u_draw_quad.h" +#include "util/u_simple_shaders.h" +#include "program/prog_instruction.h" +#include "cso_cache/cso_context.h" + + +#if FEATURE_drawpix + +/** + * glBitmaps are drawn as textured quads. The user's bitmap pattern + * is stored in a texture image. An alpha8 texture format is used. + * The fragment shader samples a bit (texel) from the texture, then + * discards the fragment if the bit is off. + * + * Note that we actually store the inverse image of the bitmap to + * simplify the fragment program. An "on" bit gets stored as texel=0x0 + * and an "off" bit is stored as texel=0xff. Then we kill the + * fragment if the negated texel value is less than zero. + */ + + +/** + * The bitmap cache attempts to accumulate multiple glBitmap calls in a + * buffer which is then rendered en mass upon a flush, state change, etc. + * A wide, short buffer is used to target the common case of a series + * of glBitmap calls being used to draw text. + */ +static GLboolean UseBitmapCache = GL_TRUE; + + +#define BITMAP_CACHE_WIDTH 512 +#define BITMAP_CACHE_HEIGHT 32 + +struct bitmap_cache +{ + /** Window pos to render the cached image */ + GLint xpos, ypos; + /** Bounds of region used in window coords */ + GLint xmin, ymin, xmax, ymax; + + GLfloat color[4]; + + /** Bitmap's Z position */ + GLfloat zpos; + + struct pipe_resource *texture; + struct pipe_transfer *trans; + + GLboolean empty; + + /** An I8 texture image: */ + ubyte *buffer; +}; + + +/** Epsilon for Z comparisons */ +#define Z_EPSILON 1e-06 + + +/** + * Make fragment program for glBitmap: + * Sample the texture and kill the fragment if the bit is 0. + * This program will be combined with the user's fragment program. + */ +static struct st_fragment_program * +make_bitmap_fragment_program(struct gl_context *ctx, GLuint samplerIndex) +{ + struct st_context *st = st_context(ctx); + struct st_fragment_program *stfp; + struct gl_program *p; + GLuint ic = 0; + + p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); + if (!p) + return NULL; + + p->NumInstructions = 3; + + p->Instructions = _mesa_alloc_instructions(p->NumInstructions); + if (!p->Instructions) { + ctx->Driver.DeleteProgram(ctx, p); + return NULL; + } + _mesa_init_instructions(p->Instructions, p->NumInstructions); + + /* TEX tmp0, fragment.texcoord[0], texture[0], 2D; */ + p->Instructions[ic].Opcode = OPCODE_TEX; + p->Instructions[ic].DstReg.File = PROGRAM_TEMPORARY; + p->Instructions[ic].DstReg.Index = 0; + p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; + p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; + p->Instructions[ic].TexSrcUnit = samplerIndex; + p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; + ic++; + + /* KIL if -tmp0 < 0 # texel=0 -> keep / texel=0 -> discard */ + p->Instructions[ic].Opcode = OPCODE_KIL; + p->Instructions[ic].SrcReg[0].File = PROGRAM_TEMPORARY; + + if (st->bitmap.tex_format == PIPE_FORMAT_L8_UNORM) + p->Instructions[ic].SrcReg[0].Swizzle = SWIZZLE_XXXX; + + p->Instructions[ic].SrcReg[0].Index = 0; + p->Instructions[ic].SrcReg[0].Negate = NEGATE_XYZW; + ic++; + + /* END; */ + p->Instructions[ic++].Opcode = OPCODE_END; + + assert(ic == p->NumInstructions); + + p->InputsRead = FRAG_BIT_TEX0; + p->OutputsWritten = 0x0; + p->SamplersUsed = (1 << samplerIndex); + + stfp = (struct st_fragment_program *) p; + stfp->Base.UsesKill = GL_TRUE; + + return stfp; +} + + +static int +find_free_bit(uint bitfield) +{ + int i; + for (i = 0; i < 32; i++) { + if ((bitfield & (1 << i)) == 0) { + return i; + } + } + return -1; +} + + +/** + * Combine basic bitmap fragment program with the user-defined program. + * \param st current context + * \param fpIn the incoming fragment program + * \param fpOut the new fragment program which does fragment culling + * \param bitmap_sampler sampler number for the bitmap texture + */ +void +st_make_bitmap_fragment_program(struct st_context *st, + struct gl_fragment_program *fpIn, + struct gl_fragment_program **fpOut, + GLuint *bitmap_sampler) +{ + struct st_fragment_program *bitmap_prog; + struct gl_program *newProg; + uint sampler; + + /* + * Generate new program which is the user-defined program prefixed + * with the bitmap sampler/kill instructions. + */ + sampler = find_free_bit(fpIn->Base.SamplersUsed); + bitmap_prog = make_bitmap_fragment_program(st->ctx, sampler); + + newProg = _mesa_combine_programs(st->ctx, + &bitmap_prog->Base.Base, + &fpIn->Base); + /* done with this after combining */ + st_reference_fragprog(st, &bitmap_prog, NULL); + +#if 0 + { + printf("Combined bitmap program:\n"); + _mesa_print_program(newProg); + printf("InputsRead: 0x%x\n", newProg->InputsRead); + printf("OutputsWritten: 0x%x\n", newProg->OutputsWritten); + _mesa_print_parameter_list(newProg->Parameters); + } +#endif + + /* return results */ + *fpOut = (struct gl_fragment_program *) newProg; + *bitmap_sampler = sampler; +} + + +/** + * Copy user-provide bitmap bits into texture buffer, expanding + * bits into texels. + * "On" bits will set texels to 0x0. + * "Off" bits will not modify texels. + * Note that the image is actually going to be upside down in + * the texture. We deal with that with texcoords. + */ +static void +unpack_bitmap(struct st_context *st, + GLint px, GLint py, GLsizei width, GLsizei height, + const struct gl_pixelstore_attrib *unpack, + const GLubyte *bitmap, + ubyte *destBuffer, uint destStride) +{ + destBuffer += py * destStride + px; + + _mesa_expand_bitmap(width, height, unpack, bitmap, + destBuffer, destStride, 0x0); +} + + +/** + * Create a texture which represents a bitmap image. + */ +static struct pipe_resource * +make_bitmap_texture(struct gl_context *ctx, GLsizei width, GLsizei height, + const struct gl_pixelstore_attrib *unpack, + const GLubyte *bitmap) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct pipe_transfer *transfer; + ubyte *dest; + struct pipe_resource *pt; + + /* PBO source... */ + bitmap = _mesa_map_pbo_source(ctx, unpack, bitmap); + if (!bitmap) { + return NULL; + } + + /** + * Create texture to hold bitmap pattern. + */ + pt = st_texture_create(st, st->internal_target, st->bitmap.tex_format, + 0, width, height, 1, 1, + PIPE_BIND_SAMPLER_VIEW); + if (!pt) { + _mesa_unmap_pbo_source(ctx, unpack); + return NULL; + } + + transfer = pipe_get_transfer(st->pipe, pt, 0, 0, + PIPE_TRANSFER_WRITE, + 0, 0, width, height); + + dest = pipe_transfer_map(pipe, transfer); + + /* Put image into texture transfer */ + memset(dest, 0xff, height * transfer->stride); + unpack_bitmap(st, 0, 0, width, height, unpack, bitmap, + dest, transfer->stride); + + _mesa_unmap_pbo_source(ctx, unpack); + + /* Release transfer */ + pipe_transfer_unmap(pipe, transfer); + pipe->transfer_destroy(pipe, transfer); + + return pt; +} + +static GLuint +setup_bitmap_vertex_data(struct st_context *st, bool normalized, + int x, int y, int width, int height, + float z, const float color[4]) +{ + struct pipe_context *pipe = st->pipe; + const struct gl_framebuffer *fb = st->ctx->DrawBuffer; + const GLfloat fb_width = (GLfloat)fb->Width; + const GLfloat fb_height = (GLfloat)fb->Height; + const GLfloat x0 = (GLfloat)x; + const GLfloat x1 = (GLfloat)(x + width); + const GLfloat y0 = (GLfloat)y; + const GLfloat y1 = (GLfloat)(y + height); + GLfloat sLeft = (GLfloat)0.0, sRight = (GLfloat)1.0; + GLfloat tTop = (GLfloat)0.0, tBot = (GLfloat)1.0 - tTop; + const GLfloat clip_x0 = (GLfloat)(x0 / fb_width * 2.0 - 1.0); + const GLfloat clip_y0 = (GLfloat)(y0 / fb_height * 2.0 - 1.0); + const GLfloat clip_x1 = (GLfloat)(x1 / fb_width * 2.0 - 1.0); + const GLfloat clip_y1 = (GLfloat)(y1 / fb_height * 2.0 - 1.0); + const GLuint max_slots = 1; /* 4096 / sizeof(st->bitmap.vertices); */ + GLuint i; + + if(!normalized) + { + sRight = width; + tBot = height; + } + + /* XXX: Need to improve buffer_write to allow NO_WAIT (as well as + * no_flush) updates to buffers where we know there is no conflict + * with previous data. Currently using max_slots > 1 will cause + * synchronous rendering if the driver flushes its command buffers + * between one bitmap and the next. Our flush hook below isn't + * sufficient to catch this as the driver doesn't tell us when it + * flushes its own command buffers. Until this gets fixed, pay the + * price of allocating a new buffer for each bitmap cache-flush to + * avoid synchronous rendering. + */ + if (st->bitmap.vbuf_slot >= max_slots) { + pipe_resource_reference(&st->bitmap.vbuf, NULL); + st->bitmap.vbuf_slot = 0; + } + + if (!st->bitmap.vbuf) { + st->bitmap.vbuf = pipe_buffer_create(pipe->screen, + PIPE_BIND_VERTEX_BUFFER, + PIPE_USAGE_STREAM, + max_slots * + sizeof(st->bitmap.vertices)); + } + + /* Positions are in clip coords since we need to do clipping in case + * the bitmap quad goes beyond the window bounds. + */ + st->bitmap.vertices[0][0][0] = clip_x0; + st->bitmap.vertices[0][0][1] = clip_y0; + st->bitmap.vertices[0][2][0] = sLeft; + st->bitmap.vertices[0][2][1] = tTop; + + st->bitmap.vertices[1][0][0] = clip_x1; + st->bitmap.vertices[1][0][1] = clip_y0; + st->bitmap.vertices[1][2][0] = sRight; + st->bitmap.vertices[1][2][1] = tTop; + + st->bitmap.vertices[2][0][0] = clip_x1; + st->bitmap.vertices[2][0][1] = clip_y1; + st->bitmap.vertices[2][2][0] = sRight; + st->bitmap.vertices[2][2][1] = tBot; + + st->bitmap.vertices[3][0][0] = clip_x0; + st->bitmap.vertices[3][0][1] = clip_y1; + st->bitmap.vertices[3][2][0] = sLeft; + st->bitmap.vertices[3][2][1] = tBot; + + /* same for all verts: */ + for (i = 0; i < 4; i++) { + st->bitmap.vertices[i][0][2] = z; + st->bitmap.vertices[i][0][3] = 1.0; + st->bitmap.vertices[i][1][0] = color[0]; + st->bitmap.vertices[i][1][1] = color[1]; + st->bitmap.vertices[i][1][2] = color[2]; + st->bitmap.vertices[i][1][3] = color[3]; + st->bitmap.vertices[i][2][2] = 0.0; /*R*/ + st->bitmap.vertices[i][2][3] = 1.0; /*Q*/ + } + + /* put vertex data into vbuf */ + pipe_buffer_write_nooverlap(st->pipe, + st->bitmap.vbuf, + st->bitmap.vbuf_slot + * sizeof(st->bitmap.vertices), + sizeof st->bitmap.vertices, + st->bitmap.vertices); + + return st->bitmap.vbuf_slot++ * sizeof st->bitmap.vertices; +} + + + +/** + * Render a glBitmap by drawing a textured quad + */ +static void +draw_bitmap_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z, + GLsizei width, GLsizei height, + struct pipe_sampler_view *sv, + const GLfloat *color) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct cso_context *cso = st->cso_context; + struct st_fp_variant *fpv; + struct st_fp_variant_key key; + GLuint maxSize; + GLuint offset; + + memset(&key, 0, sizeof(key)); + key.st = st; + key.bitmap = GL_TRUE; + + fpv = st_get_fp_variant(st, st->fp, &key); + + /* As an optimization, Mesa's fragment programs will sometimes get the + * primary color from a statevar/constant rather than a varying variable. + * when that's the case, we need to ensure that we use the 'color' + * parameter and not the current attribute color (which may have changed + * through glRasterPos and state validation. + * So, we force the proper color here. Not elegant, but it works. + */ + { + GLfloat colorSave[4]; + COPY_4V(colorSave, ctx->Current.Attrib[VERT_ATTRIB_COLOR0]); + COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], color); + st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT); + COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], colorSave); + } + + + /* limit checks */ + /* XXX if the bitmap is larger than the max texture size, break + * it up into chunks. + */ + maxSize = 1 << (pipe->screen->get_param(pipe->screen, + PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); + assert(width <= (GLsizei)maxSize); + assert(height <= (GLsizei)maxSize); + + cso_save_rasterizer(cso); + cso_save_samplers(cso); + cso_save_fragment_sampler_views(cso); + cso_save_viewport(cso); + cso_save_fragment_shader(cso); + cso_save_vertex_shader(cso); + cso_save_vertex_elements(cso); + cso_save_vertex_buffers(cso); + + /* rasterizer state: just scissor */ + st->bitmap.rasterizer.scissor = ctx->Scissor.Enabled; + cso_set_rasterizer(cso, &st->bitmap.rasterizer); + + /* fragment shader state: TEX lookup program */ + cso_set_fragment_shader_handle(cso, fpv->driver_shader); + + /* vertex shader state: position + texcoord pass-through */ + cso_set_vertex_shader_handle(cso, st->bitmap.vs); + + /* user samplers, plus our bitmap sampler */ + { + struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS]; + uint num = MAX2(fpv->bitmap_sampler + 1, st->state.num_samplers); + uint i; + for (i = 0; i < st->state.num_samplers; i++) { + samplers[i] = &st->state.samplers[i]; + } + samplers[fpv->bitmap_sampler] = + &st->bitmap.samplers[sv->texture->target != PIPE_TEXTURE_RECT]; + cso_set_samplers(cso, num, (const struct pipe_sampler_state **) samplers); + } + + /* user textures, plus the bitmap texture */ + { + struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS]; + uint num = MAX2(fpv->bitmap_sampler + 1, st->state.num_textures); + memcpy(sampler_views, st->state.sampler_views, sizeof(sampler_views)); + sampler_views[fpv->bitmap_sampler] = sv; + cso_set_fragment_sampler_views(cso, num, sampler_views); + } + + /* viewport state: viewport matching window dims */ + { + const struct gl_framebuffer *fb = st->ctx->DrawBuffer; + const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP); + const GLfloat width = (GLfloat)fb->Width; + const GLfloat height = (GLfloat)fb->Height; + struct pipe_viewport_state vp; + vp.scale[0] = 0.5f * width; + vp.scale[1] = height * (invert ? -0.5f : 0.5f); + vp.scale[2] = 0.5f; + vp.scale[3] = 1.0f; + vp.translate[0] = 0.5f * width; + vp.translate[1] = 0.5f * height; + vp.translate[2] = 0.5f; + vp.translate[3] = 0.0f; + cso_set_viewport(cso, &vp); + } + + cso_set_vertex_elements(cso, 3, st->velems_util_draw); + + /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */ + z = z * 2.0 - 1.0; + + /* draw textured quad */ + offset = setup_bitmap_vertex_data(st, + sv->texture->target != PIPE_TEXTURE_RECT, + x, y, width, height, z, color); + + util_draw_vertex_buffer(pipe, st->cso_context, st->bitmap.vbuf, offset, + PIPE_PRIM_TRIANGLE_FAN, + 4, /* verts */ + 3); /* attribs/vert */ + + + /* restore state */ + cso_restore_rasterizer(cso); + cso_restore_samplers(cso); + cso_restore_fragment_sampler_views(cso); + cso_restore_viewport(cso); + cso_restore_fragment_shader(cso); + cso_restore_vertex_shader(cso); + cso_restore_vertex_elements(cso); + cso_restore_vertex_buffers(cso); +} + + +static void +reset_cache(struct st_context *st) +{ + struct pipe_context *pipe = st->pipe; + struct bitmap_cache *cache = st->bitmap.cache; + + /*memset(cache->buffer, 0xff, sizeof(cache->buffer));*/ + cache->empty = GL_TRUE; + + cache->xmin = 1000000; + cache->xmax = -1000000; + cache->ymin = 1000000; + cache->ymax = -1000000; + + if (cache->trans) { + pipe->transfer_destroy(pipe, cache->trans); + cache->trans = NULL; + } + + assert(!cache->texture); + + /* allocate a new texture */ + cache->texture = st_texture_create(st, PIPE_TEXTURE_2D, + st->bitmap.tex_format, 0, + BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, + 1, 1, + PIPE_BIND_SAMPLER_VIEW); +} + + +/** Print bitmap image to stdout (debug) */ +static void +print_cache(const struct bitmap_cache *cache) +{ + int i, j, k; + + for (i = 0; i < BITMAP_CACHE_HEIGHT; i++) { + k = BITMAP_CACHE_WIDTH * (BITMAP_CACHE_HEIGHT - i - 1); + for (j = 0; j < BITMAP_CACHE_WIDTH; j++) { + if (cache->buffer[k]) + printf("X"); + else + printf(" "); + k++; + } + printf("\n"); + } +} + + +/** + * Create gallium pipe_transfer object for the bitmap cache. + */ +static void +create_cache_trans(struct st_context *st) +{ + struct pipe_context *pipe = st->pipe; + struct bitmap_cache *cache = st->bitmap.cache; + + if (cache->trans) + return; + + /* Map the texture transfer. + * Subsequent glBitmap calls will write into the texture image. + */ + cache->trans = pipe_get_transfer(st->pipe, cache->texture, 0, 0, + PIPE_TRANSFER_WRITE, 0, 0, + BITMAP_CACHE_WIDTH, + BITMAP_CACHE_HEIGHT); + cache->buffer = pipe_transfer_map(pipe, cache->trans); + + /* init image to all 0xff */ + memset(cache->buffer, 0xff, cache->trans->stride * BITMAP_CACHE_HEIGHT); +} + + +/** + * If there's anything in the bitmap cache, draw/flush it now. + */ +void +st_flush_bitmap_cache(struct st_context *st) +{ + if (!st->bitmap.cache->empty) { + struct bitmap_cache *cache = st->bitmap.cache; + + if (st->ctx->DrawBuffer) { + struct pipe_context *pipe = st->pipe; + struct pipe_sampler_view *sv; + + assert(cache->xmin <= cache->xmax); + +/* printf("flush size %d x %d at %d, %d\n", + cache->xmax - cache->xmin, + cache->ymax - cache->ymin, + cache->xpos, cache->ypos); +*/ + + /* The texture transfer has been mapped until now. + * So unmap and release the texture transfer before drawing. + */ + if (cache->trans) { + if (0) + print_cache(cache); + pipe_transfer_unmap(pipe, cache->trans); + cache->buffer = NULL; + + pipe->transfer_destroy(pipe, cache->trans); + cache->trans = NULL; + } + + sv = st_create_texture_sampler_view(st->pipe, cache->texture); + if (sv) { + draw_bitmap_quad(st->ctx, + cache->xpos, + cache->ypos, + cache->zpos, + BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, + sv, + cache->color); + + pipe_sampler_view_reference(&sv, NULL); + } + } + + /* release/free the texture */ + pipe_resource_reference(&cache->texture, NULL); + + reset_cache(st); + } +} + + +/** + * Flush bitmap cache and release vertex buffer. + */ +void +st_flush_bitmap( struct st_context *st ) +{ + st_flush_bitmap_cache(st); + + /* Release vertex buffer to avoid synchronous rendering if we were + * to map it in the next frame. + */ + pipe_resource_reference(&st->bitmap.vbuf, NULL); + st->bitmap.vbuf_slot = 0; +} + + +/** + * Try to accumulate this glBitmap call in the bitmap cache. + * \return GL_TRUE for success, GL_FALSE if bitmap is too large, etc. + */ +static GLboolean +accum_bitmap(struct st_context *st, + GLint x, GLint y, GLsizei width, GLsizei height, + const struct gl_pixelstore_attrib *unpack, + const GLubyte *bitmap ) +{ + struct bitmap_cache *cache = st->bitmap.cache; + int px = -999, py = -999; + const GLfloat z = st->ctx->Current.RasterPos[2]; + + if (width > BITMAP_CACHE_WIDTH || + height > BITMAP_CACHE_HEIGHT) + return GL_FALSE; /* too big to cache */ + + if (!cache->empty) { + px = x - cache->xpos; /* pos in buffer */ + py = y - cache->ypos; + if (px < 0 || px + width > BITMAP_CACHE_WIDTH || + py < 0 || py + height > BITMAP_CACHE_HEIGHT || + !TEST_EQ_4V(st->ctx->Current.RasterColor, cache->color) || + ((fabs(z - cache->zpos) > Z_EPSILON))) { + /* This bitmap would extend beyond cache bounds, or the bitmap + * color is changing + * so flush and continue. + */ + st_flush_bitmap_cache(st); + } + } + + if (cache->empty) { + /* Initialize. Center bitmap vertically in the buffer. */ + px = 0; + py = (BITMAP_CACHE_HEIGHT - height) / 2; + cache->xpos = x; + cache->ypos = y - py; + cache->zpos = z; + cache->empty = GL_FALSE; + COPY_4FV(cache->color, st->ctx->Current.RasterColor); + } + + assert(px != -999); + assert(py != -999); + + if (x < cache->xmin) + cache->xmin = x; + if (y < cache->ymin) + cache->ymin = y; + if (x + width > cache->xmax) + cache->xmax = x + width; + if (y + height > cache->ymax) + cache->ymax = y + height; + + /* create the transfer if needed */ + create_cache_trans(st); + + unpack_bitmap(st, px, py, width, height, unpack, bitmap, + cache->buffer, BITMAP_CACHE_WIDTH); + + return GL_TRUE; /* accumulated */ +} + + + +/** + * Called via ctx->Driver.Bitmap() + */ +static void +st_Bitmap(struct gl_context *ctx, GLint x, GLint y, + GLsizei width, GLsizei height, + const struct gl_pixelstore_attrib *unpack, const GLubyte *bitmap ) +{ + struct st_context *st = st_context(ctx); + struct pipe_resource *pt; + + if (width == 0 || height == 0) + return; + + st_validate_state(st); + + if (!st->bitmap.vs) { + /* create pass-through vertex shader now */ + const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, + TGSI_SEMANTIC_COLOR, + TGSI_SEMANTIC_GENERIC }; + const uint semantic_indexes[] = { 0, 0, 0 }; + st->bitmap.vs = util_make_vertex_passthrough_shader(st->pipe, 3, + semantic_names, + semantic_indexes); + } + + if (UseBitmapCache && accum_bitmap(st, x, y, width, height, unpack, bitmap)) + return; + + pt = make_bitmap_texture(ctx, width, height, unpack, bitmap); + if (pt) { + struct pipe_sampler_view *sv = + st_create_texture_sampler_view(st->pipe, pt); + + assert(pt->target == PIPE_TEXTURE_2D || pt->target == PIPE_TEXTURE_RECT); + + if (sv) { + draw_bitmap_quad(ctx, x, y, ctx->Current.RasterPos[2], + width, height, sv, + st->ctx->Current.RasterColor); + + pipe_sampler_view_reference(&sv, NULL); + } + + /* release/free the texture */ + pipe_resource_reference(&pt, NULL); + } +} + + +/** Per-context init */ +void +st_init_bitmap_functions(struct dd_function_table *functions) +{ + functions->Bitmap = st_Bitmap; +} + + +/** Per-context init */ +void +st_init_bitmap(struct st_context *st) +{ + struct pipe_sampler_state *sampler = &st->bitmap.samplers[0]; + struct pipe_context *pipe = st->pipe; + struct pipe_screen *screen = pipe->screen; + + /* init sampler state once */ + memset(sampler, 0, sizeof(*sampler)); + sampler->wrap_s = PIPE_TEX_WRAP_CLAMP; + sampler->wrap_t = PIPE_TEX_WRAP_CLAMP; + sampler->wrap_r = PIPE_TEX_WRAP_CLAMP; + sampler->min_img_filter = PIPE_TEX_FILTER_NEAREST; + sampler->min_mip_filter = PIPE_TEX_MIPFILTER_NONE; + sampler->mag_img_filter = PIPE_TEX_FILTER_NEAREST; + st->bitmap.samplers[1] = *sampler; + st->bitmap.samplers[1].normalized_coords = 1; + + /* init baseline rasterizer state once */ + memset(&st->bitmap.rasterizer, 0, sizeof(st->bitmap.rasterizer)); + st->bitmap.rasterizer.gl_rasterization_rules = 1; + + /* find a usable texture format */ + if (screen->is_format_supported(screen, PIPE_FORMAT_I8_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + st->bitmap.tex_format = PIPE_FORMAT_I8_UNORM; + } + else if (screen->is_format_supported(screen, PIPE_FORMAT_A8_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + st->bitmap.tex_format = PIPE_FORMAT_A8_UNORM; + } + else if (screen->is_format_supported(screen, PIPE_FORMAT_L8_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + st->bitmap.tex_format = PIPE_FORMAT_L8_UNORM; + } + else { + /* XXX support more formats */ + assert(0); + } + + /* alloc bitmap cache object */ + st->bitmap.cache = ST_CALLOC_STRUCT(bitmap_cache); + + reset_cache(st); +} + + +/** Per-context tear-down */ +void +st_destroy_bitmap(struct st_context *st) +{ + struct pipe_context *pipe = st->pipe; + struct bitmap_cache *cache = st->bitmap.cache; + + if (st->bitmap.vs) { + cso_delete_vertex_shader(st->cso_context, st->bitmap.vs); + st->bitmap.vs = NULL; + } + + if (st->bitmap.vbuf) { + pipe_resource_reference(&st->bitmap.vbuf, NULL); + st->bitmap.vbuf = NULL; + } + + if (cache) { + if (cache->trans) { + pipe_transfer_unmap(pipe, cache->trans); + pipe->transfer_destroy(pipe, cache->trans); + } + pipe_resource_reference(&st->bitmap.cache->texture, NULL); + free(st->bitmap.cache); + st->bitmap.cache = NULL; + } +} + +#endif /* FEATURE_drawpix */ diff --git a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c index c2b4e1808..5c95eddd0 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c +++ b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c @@ -1,1488 +1,1488 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - - /* - * Authors: - * Brian Paul - */ - -#include "main/imports.h" -#include "main/image.h" -#include "main/bufferobj.h" -#include "main/macros.h" -#include "main/mfeatures.h" -#include "main/mtypes.h" -#include "main/pack.h" -#include "main/pbo.h" -#include "main/texformat.h" -#include "main/texstore.h" -#include "program/program.h" -#include "program/prog_print.h" -#include "program/prog_instruction.h" - -#include "st_atom.h" -#include "st_atom_constbuf.h" -#include "st_cb_drawpixels.h" -#include "st_cb_readpixels.h" -#include "st_cb_fbo.h" -#include "st_context.h" -#include "st_debug.h" -#include "st_format.h" -#include "st_program.h" -#include "st_texture.h" - -#include "pipe/p_context.h" -#include "pipe/p_defines.h" -#include "tgsi/tgsi_ureg.h" -#include "util/u_draw_quad.h" -#include "util/u_format.h" -#include "util/u_inlines.h" -#include "util/u_math.h" -#include "util/u_tile.h" -#include "cso_cache/cso_context.h" - - -#if FEATURE_drawpix - -/** - * Check if the given program is: - * 0: MOVE result.color, fragment.color; - * 1: END; - */ -static GLboolean -is_passthrough_program(const struct gl_fragment_program *prog) -{ - if (prog->Base.NumInstructions == 2) { - const struct prog_instruction *inst = prog->Base.Instructions; - if (inst[0].Opcode == OPCODE_MOV && - inst[1].Opcode == OPCODE_END && - inst[0].DstReg.File == PROGRAM_OUTPUT && - inst[0].DstReg.Index == FRAG_RESULT_COLOR && - inst[0].DstReg.WriteMask == WRITEMASK_XYZW && - inst[0].SrcReg[0].File == PROGRAM_INPUT && - inst[0].SrcReg[0].Index == FRAG_ATTRIB_COL0 && - inst[0].SrcReg[0].Swizzle == SWIZZLE_XYZW) { - return GL_TRUE; - } - } - return GL_FALSE; -} - - - -/** - * Make fragment shader for glDraw/CopyPixels. This shader is made - * by combining the pixel transfer shader with the user-defined shader. - * \param fpIn the current/incoming fragment program - * \param fpOut returns the combined fragment program - */ -void -st_make_drawpix_fragment_program(struct st_context *st, - struct gl_fragment_program *fpIn, - struct gl_fragment_program **fpOut) -{ - struct gl_program *newProg; - - if (is_passthrough_program(fpIn)) { - newProg = (struct gl_program *) _mesa_clone_fragment_program(st->ctx, - &st->pixel_xfer.program->Base); - } - else { -#if 0 - /* debug */ - printf("Base program:\n"); - _mesa_print_program(&fpIn->Base); - printf("DrawPix program:\n"); - _mesa_print_program(&st->pixel_xfer.program->Base.Base); -#endif - newProg = _mesa_combine_programs(st->ctx, - &st->pixel_xfer.program->Base.Base, - &fpIn->Base); - } - -#if 0 - /* debug */ - printf("Combined DrawPixels program:\n"); - _mesa_print_program(newProg); - printf("InputsRead: 0x%x\n", newProg->InputsRead); - printf("OutputsWritten: 0x%x\n", newProg->OutputsWritten); - _mesa_print_parameter_list(newProg->Parameters); -#endif - - *fpOut = (struct gl_fragment_program *) newProg; -} - - -/** - * Create fragment program that does a TEX() instruction to get a Z and/or - * stencil value value, then writes to FRAG_RESULT_DEPTH/FRAG_RESULT_STENCIL. - * Used for glDrawPixels(GL_DEPTH_COMPONENT / GL_STENCIL_INDEX). - * Pass fragment color through as-is. - * \return pointer to the gl_fragment program - */ -struct gl_fragment_program * -st_make_drawpix_z_stencil_program(struct st_context *st, - GLboolean write_depth, - GLboolean write_stencil) -{ - struct gl_context *ctx = st->ctx; - struct gl_program *p; - struct gl_fragment_program *fp; - GLuint ic = 0; - const GLuint shaderIndex = write_depth * 2 + write_stencil; - - assert(shaderIndex < Elements(st->drawpix.shaders)); - - if (st->drawpix.shaders[shaderIndex]) { - /* already have the proper shader */ - return st->drawpix.shaders[shaderIndex]; - } - - /* - * Create shader now - */ - p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); - if (!p) - return NULL; - - p->NumInstructions = write_depth ? 2 : 1; - p->NumInstructions += write_stencil ? 1 : 0; - - p->Instructions = _mesa_alloc_instructions(p->NumInstructions); - if (!p->Instructions) { - ctx->Driver.DeleteProgram(ctx, p); - return NULL; - } - _mesa_init_instructions(p->Instructions, p->NumInstructions); - - if (write_depth) { - /* TEX result.depth, fragment.texcoord[0], texture[0], 2D; */ - p->Instructions[ic].Opcode = OPCODE_TEX; - p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT; - p->Instructions[ic].DstReg.Index = FRAG_RESULT_DEPTH; - p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Z; - p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; - p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; - p->Instructions[ic].TexSrcUnit = 0; - p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; - ic++; - } - - if (write_stencil) { - /* TEX result.stencil, fragment.texcoord[0], texture[0], 2D; */ - p->Instructions[ic].Opcode = OPCODE_TEX; - p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT; - p->Instructions[ic].DstReg.Index = FRAG_RESULT_STENCIL; - p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Y; - p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; - p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; - p->Instructions[ic].TexSrcUnit = 1; - p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; - ic++; - } - - /* END; */ - p->Instructions[ic++].Opcode = OPCODE_END; - - assert(ic == p->NumInstructions); - - p->InputsRead = FRAG_BIT_TEX0 | FRAG_BIT_COL0; - p->OutputsWritten = 0; - if (write_depth) - p->OutputsWritten |= (1 << FRAG_RESULT_DEPTH); - if (write_stencil) - p->OutputsWritten |= (1 << FRAG_RESULT_STENCIL); - - p->SamplersUsed = 0x1; /* sampler 0 (bit 0) is used */ - if (write_stencil) - p->SamplersUsed |= 1 << 1; - - fp = (struct gl_fragment_program *) p; - - /* save the new shader */ - st->drawpix.shaders[shaderIndex] = fp; - - return fp; -} - - -/** - * Create a simple vertex shader that just passes through the - * vertex position and texcoord (and optionally, color). - */ -static void * -make_passthrough_vertex_shader(struct st_context *st, - GLboolean passColor) -{ - if (!st->drawpix.vert_shaders[passColor]) { - struct ureg_program *ureg = ureg_create( TGSI_PROCESSOR_VERTEX ); - - if (ureg == NULL) - return NULL; - - /* MOV result.pos, vertex.pos; */ - ureg_MOV(ureg, - ureg_DECL_output( ureg, TGSI_SEMANTIC_POSITION, 0 ), - ureg_DECL_vs_input( ureg, 0 )); - - /* MOV result.texcoord0, vertex.attr[1]; */ - ureg_MOV(ureg, - ureg_DECL_output( ureg, TGSI_SEMANTIC_GENERIC, 0 ), - ureg_DECL_vs_input( ureg, 1 )); - - if (passColor) { - /* MOV result.color0, vertex.attr[2]; */ - ureg_MOV(ureg, - ureg_DECL_output( ureg, TGSI_SEMANTIC_COLOR, 0 ), - ureg_DECL_vs_input( ureg, 2 )); - } - - ureg_END( ureg ); - - st->drawpix.vert_shaders[passColor] = - ureg_create_shader_and_destroy( ureg, st->pipe ); - } - - return st->drawpix.vert_shaders[passColor]; -} - - -/** - * Return a texture base format for drawing/copying an image - * of the given format. - */ -static GLenum -base_format(GLenum format) -{ - switch (format) { - case GL_DEPTH_COMPONENT: - return GL_DEPTH_COMPONENT; - case GL_DEPTH_STENCIL: - return GL_DEPTH_STENCIL; - case GL_STENCIL_INDEX: - return GL_STENCIL_INDEX; - default: - return GL_RGBA; - } -} - - -/** - * Return a texture internalFormat for drawing/copying an image - * of the given format and type. - */ -static GLenum -internal_format(GLenum format, GLenum type) -{ - switch (format) { - case GL_DEPTH_COMPONENT: - return GL_DEPTH_COMPONENT; - case GL_DEPTH_STENCIL: - return GL_DEPTH_STENCIL; - case GL_STENCIL_INDEX: - return GL_STENCIL_INDEX; - default: - if (_mesa_is_integer_format(format)) { - switch (type) { - case GL_BYTE: - return GL_RGBA8I; - case GL_UNSIGNED_BYTE: - return GL_RGBA8UI; - case GL_SHORT: - return GL_RGBA16I; - case GL_UNSIGNED_SHORT: - return GL_RGBA16UI; - case GL_INT: - return GL_RGBA32I; - case GL_UNSIGNED_INT: - return GL_RGBA32UI; - default: - assert(0 && "Unexpected type in internal_format()"); - return GL_RGBA_INTEGER; - } - } - else { - return GL_RGBA; - } - } -} - - -/** - * Create a temporary texture to hold an image of the given size. - * If width, height are not POT and the driver only handles POT textures, - * allocate the next larger size of texture that is POT. - */ -static struct pipe_resource * -alloc_texture(struct st_context *st, GLsizei width, GLsizei height, - enum pipe_format texFormat) -{ - struct pipe_resource *pt; - - pt = st_texture_create(st, st->internal_target, texFormat, 0, - width, height, 1, 1, PIPE_BIND_SAMPLER_VIEW); - - return pt; -} - - -/** - * Make texture containing an image for glDrawPixels image. - * If 'pixels' is NULL, leave the texture image data undefined. - */ -static struct pipe_resource * -make_texture(struct st_context *st, - GLsizei width, GLsizei height, GLenum format, GLenum type, - const struct gl_pixelstore_attrib *unpack, - const GLvoid *pixels) -{ - struct gl_context *ctx = st->ctx; - struct pipe_context *pipe = st->pipe; - gl_format mformat; - struct pipe_resource *pt; - enum pipe_format pipeFormat; - GLuint cpp; - GLenum baseFormat, intFormat; - - baseFormat = base_format(format); - intFormat = internal_format(format, type); - - mformat = st_ChooseTextureFormat_renderable(ctx, intFormat, - format, type, GL_FALSE); - assert(mformat); - - pipeFormat = st_mesa_format_to_pipe_format(mformat); - assert(pipeFormat); - cpp = util_format_get_blocksize(pipeFormat); - - pixels = _mesa_map_pbo_source(ctx, unpack, pixels); - if (!pixels) - return NULL; - - /* alloc temporary texture */ - pt = alloc_texture(st, width, height, pipeFormat); - if (!pt) { - _mesa_unmap_pbo_source(ctx, unpack); - return NULL; - } - - { - struct pipe_transfer *transfer; - static const GLuint dstImageOffsets = 0; - GLboolean success; - GLubyte *dest; - const GLbitfield imageTransferStateSave = ctx->_ImageTransferState; - - /* we'll do pixel transfer in a fragment shader */ - ctx->_ImageTransferState = 0x0; - - transfer = pipe_get_transfer(st->pipe, pt, 0, 0, - PIPE_TRANSFER_WRITE, 0, 0, - width, height); - - /* map texture transfer */ - dest = pipe_transfer_map(pipe, transfer); - - - /* Put image into texture transfer. - * Note that the image is actually going to be upside down in - * the texture. We deal with that with texcoords. - */ - success = _mesa_texstore(ctx, 2, /* dims */ - baseFormat, /* baseInternalFormat */ - mformat, /* gl_format */ - dest, /* dest */ - 0, 0, 0, /* dstX/Y/Zoffset */ - transfer->stride, /* dstRowStride, bytes */ - &dstImageOffsets, /* dstImageOffsets */ - width, height, 1, /* size */ - format, type, /* src format/type */ - pixels, /* data source */ - unpack); - - /* unmap */ - pipe_transfer_unmap(pipe, transfer); - pipe->transfer_destroy(pipe, transfer); - - assert(success); - - /* restore */ - ctx->_ImageTransferState = imageTransferStateSave; - } - - _mesa_unmap_pbo_source(ctx, unpack); - - return pt; -} - - -/** - * Draw quad with texcoords and optional color. - * Coords are gallium window coords with y=0=top. - * \param color may be null - * \param invertTex if true, flip texcoords vertically - */ -static void -draw_quad(struct gl_context *ctx, GLfloat x0, GLfloat y0, GLfloat z, - GLfloat x1, GLfloat y1, const GLfloat *color, - GLboolean invertTex, GLfloat maxXcoord, GLfloat maxYcoord) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - GLfloat verts[4][3][4]; /* four verts, three attribs, XYZW */ - - /* setup vertex data */ - { - const struct gl_framebuffer *fb = st->ctx->DrawBuffer; - const GLfloat fb_width = (GLfloat) fb->Width; - const GLfloat fb_height = (GLfloat) fb->Height; - const GLfloat clip_x0 = x0 / fb_width * 2.0f - 1.0f; - const GLfloat clip_y0 = y0 / fb_height * 2.0f - 1.0f; - const GLfloat clip_x1 = x1 / fb_width * 2.0f - 1.0f; - const GLfloat clip_y1 = y1 / fb_height * 2.0f - 1.0f; - const GLfloat sLeft = 0.0f, sRight = maxXcoord; - const GLfloat tTop = invertTex ? maxYcoord : 0.0f; - const GLfloat tBot = invertTex ? 0.0f : maxYcoord; - GLuint i; - - /* upper-left */ - verts[0][0][0] = clip_x0; /* v[0].attr[0].x */ - verts[0][0][1] = clip_y0; /* v[0].attr[0].y */ - - /* upper-right */ - verts[1][0][0] = clip_x1; - verts[1][0][1] = clip_y0; - - /* lower-right */ - verts[2][0][0] = clip_x1; - verts[2][0][1] = clip_y1; - - /* lower-left */ - verts[3][0][0] = clip_x0; - verts[3][0][1] = clip_y1; - - verts[0][1][0] = sLeft; /* v[0].attr[1].S */ - verts[0][1][1] = tTop; /* v[0].attr[1].T */ - verts[1][1][0] = sRight; - verts[1][1][1] = tTop; - verts[2][1][0] = sRight; - verts[2][1][1] = tBot; - verts[3][1][0] = sLeft; - verts[3][1][1] = tBot; - - /* same for all verts: */ - if (color) { - for (i = 0; i < 4; i++) { - verts[i][0][2] = z; /* v[i].attr[0].z */ - verts[i][0][3] = 1.0f; /* v[i].attr[0].w */ - verts[i][2][0] = color[0]; /* v[i].attr[2].r */ - verts[i][2][1] = color[1]; /* v[i].attr[2].g */ - verts[i][2][2] = color[2]; /* v[i].attr[2].b */ - verts[i][2][3] = color[3]; /* v[i].attr[2].a */ - verts[i][1][2] = 0.0f; /* v[i].attr[1].R */ - verts[i][1][3] = 1.0f; /* v[i].attr[1].Q */ - } - } - else { - for (i = 0; i < 4; i++) { - verts[i][0][2] = z; /*Z*/ - verts[i][0][3] = 1.0f; /*W*/ - verts[i][1][2] = 0.0f; /*R*/ - verts[i][1][3] = 1.0f; /*Q*/ - } - } - } - - { - struct pipe_resource *buf; - - /* allocate/load buffer object with vertex data */ - buf = pipe_buffer_create(pipe->screen, - PIPE_BIND_VERTEX_BUFFER, - PIPE_USAGE_STATIC, - sizeof(verts)); - pipe_buffer_write(st->pipe, buf, 0, sizeof(verts), verts); - - util_draw_vertex_buffer(pipe, st->cso_context, buf, 0, - PIPE_PRIM_QUADS, - 4, /* verts */ - 3); /* attribs/vert */ - pipe_resource_reference(&buf, NULL); - } -} - - - -static void -draw_textured_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z, - GLsizei width, GLsizei height, - GLfloat zoomX, GLfloat zoomY, - struct pipe_sampler_view **sv, - int num_sampler_view, - void *driver_vp, - void *driver_fp, - const GLfloat *color, - GLboolean invertTex, - GLboolean write_depth, GLboolean write_stencil) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct cso_context *cso = st->cso_context; - GLfloat x0, y0, x1, y1; - GLsizei maxSize; - boolean normalized = sv[0]->texture->target != PIPE_TEXTURE_RECT; - - /* limit checks */ - /* XXX if DrawPixels image is larger than max texture size, break - * it up into chunks. - */ - maxSize = 1 << (pipe->screen->get_param(pipe->screen, - PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); - assert(width <= maxSize); - assert(height <= maxSize); - - cso_save_rasterizer(cso); - cso_save_viewport(cso); - cso_save_samplers(cso); - cso_save_fragment_sampler_views(cso); - cso_save_fragment_shader(cso); - cso_save_vertex_shader(cso); - cso_save_vertex_elements(cso); - cso_save_vertex_buffers(cso); - if (write_stencil) { - cso_save_depth_stencil_alpha(cso); - cso_save_blend(cso); - } - - /* rasterizer state: just scissor */ - { - struct pipe_rasterizer_state rasterizer; - memset(&rasterizer, 0, sizeof(rasterizer)); - rasterizer.gl_rasterization_rules = 1; - rasterizer.scissor = ctx->Scissor.Enabled; - cso_set_rasterizer(cso, &rasterizer); - } - - if (write_stencil) { - /* Stencil writing bypasses the normal fragment pipeline to - * disable color writing and set stencil test to always pass. - */ - struct pipe_depth_stencil_alpha_state dsa; - struct pipe_blend_state blend; - - /* depth/stencil */ - memset(&dsa, 0, sizeof(dsa)); - dsa.stencil[0].enabled = 1; - dsa.stencil[0].func = PIPE_FUNC_ALWAYS; - dsa.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff; - dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE; - if (write_depth) { - /* writing depth+stencil: depth test always passes */ - dsa.depth.enabled = 1; - dsa.depth.writemask = ctx->Depth.Mask; - dsa.depth.func = PIPE_FUNC_ALWAYS; - } - cso_set_depth_stencil_alpha(cso, &dsa); - - /* blend (colormask) */ - memset(&blend, 0, sizeof(blend)); - cso_set_blend(cso, &blend); - } - - /* fragment shader state: TEX lookup program */ - cso_set_fragment_shader_handle(cso, driver_fp); - - /* vertex shader state: position + texcoord pass-through */ - cso_set_vertex_shader_handle(cso, driver_vp); - - - /* texture sampling state: */ - { - struct pipe_sampler_state sampler; - memset(&sampler, 0, sizeof(sampler)); - sampler.wrap_s = PIPE_TEX_WRAP_CLAMP; - sampler.wrap_t = PIPE_TEX_WRAP_CLAMP; - sampler.wrap_r = PIPE_TEX_WRAP_CLAMP; - sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; - sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; - sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; - sampler.normalized_coords = normalized; - - cso_single_sampler(cso, 0, &sampler); - if (num_sampler_view > 1) { - cso_single_sampler(cso, 1, &sampler); - } - cso_single_sampler_done(cso); - } - - /* viewport state: viewport matching window dims */ - { - const float w = (float) ctx->DrawBuffer->Width; - const float h = (float) ctx->DrawBuffer->Height; - struct pipe_viewport_state vp; - vp.scale[0] = 0.5f * w; - vp.scale[1] = -0.5f * h; - vp.scale[2] = 0.5f; - vp.scale[3] = 1.0f; - vp.translate[0] = 0.5f * w; - vp.translate[1] = 0.5f * h; - vp.translate[2] = 0.5f; - vp.translate[3] = 0.0f; - cso_set_viewport(cso, &vp); - } - - cso_set_vertex_elements(cso, 3, st->velems_util_draw); - - /* texture state: */ - cso_set_fragment_sampler_views(cso, num_sampler_view, sv); - - /* Compute Gallium window coords (y=0=top) with pixel zoom. - * Recall that these coords are transformed by the current - * vertex shader and viewport transformation. - */ - if (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM) { - y = ctx->DrawBuffer->Height - (int) (y + height * ctx->Pixel.ZoomY); - invertTex = !invertTex; - } - - x0 = (GLfloat) x; - x1 = x + width * ctx->Pixel.ZoomX; - y0 = (GLfloat) y; - y1 = y + height * ctx->Pixel.ZoomY; - - /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */ - z = z * 2.0 - 1.0; - - draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex, - normalized ? ((GLfloat) width / sv[0]->texture->width0) : (GLfloat)width, - normalized ? ((GLfloat) height / sv[0]->texture->height0) : (GLfloat)height); - - /* restore state */ - cso_restore_rasterizer(cso); - cso_restore_viewport(cso); - cso_restore_samplers(cso); - cso_restore_fragment_sampler_views(cso); - cso_restore_fragment_shader(cso); - cso_restore_vertex_shader(cso); - cso_restore_vertex_elements(cso); - cso_restore_vertex_buffers(cso); - if (write_stencil) { - cso_restore_depth_stencil_alpha(cso); - cso_restore_blend(cso); - } -} - - -/** - * Software fallback to do glDrawPixels(GL_STENCIL_INDEX) when we - * can't use a fragment shader to write stencil values. - */ -static void -draw_stencil_pixels(struct gl_context *ctx, GLint x, GLint y, - GLsizei width, GLsizei height, GLenum format, GLenum type, - const struct gl_pixelstore_attrib *unpack, - const GLvoid *pixels) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct st_renderbuffer *strb; - enum pipe_transfer_usage usage; - struct pipe_transfer *pt; - const GLboolean zoom = ctx->Pixel.ZoomX != 1.0 || ctx->Pixel.ZoomY != 1.0; - GLint skipPixels; - ubyte *stmap; - struct gl_pixelstore_attrib clippedUnpack = *unpack; - - if (!zoom) { - if (!_mesa_clip_drawpixels(ctx, &x, &y, &width, &height, - &clippedUnpack)) { - /* totally clipped */ - return; - } - } - - strb = st_renderbuffer(ctx->DrawBuffer-> - Attachment[BUFFER_STENCIL].Renderbuffer); - - if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { - y = ctx->DrawBuffer->Height - y - height; - } - - if(format != GL_DEPTH_STENCIL && - util_format_get_component_bits(strb->format, - UTIL_FORMAT_COLORSPACE_ZS, 0) != 0) - usage = PIPE_TRANSFER_READ_WRITE; - else - usage = PIPE_TRANSFER_WRITE; - - pt = pipe_get_transfer(st_context(ctx)->pipe, strb->texture, 0, 0, - usage, x, y, - width, height); - - stmap = pipe_transfer_map(pipe, pt); - - pixels = _mesa_map_pbo_source(ctx, &clippedUnpack, pixels); - assert(pixels); - - /* if width > MAX_WIDTH, have to process image in chunks */ - skipPixels = 0; - while (skipPixels < width) { - const GLint spanX = skipPixels; - const GLint spanWidth = MIN2(width - skipPixels, MAX_WIDTH); - GLint row; - for (row = 0; row < height; row++) { - GLubyte sValues[MAX_WIDTH]; - GLuint zValues[MAX_WIDTH]; - GLenum destType = GL_UNSIGNED_BYTE; - const GLvoid *source = _mesa_image_address2d(&clippedUnpack, pixels, - width, height, - format, type, - row, skipPixels); - _mesa_unpack_stencil_span(ctx, spanWidth, destType, sValues, - type, source, &clippedUnpack, - ctx->_ImageTransferState); - - if (format == GL_DEPTH_STENCIL) { - _mesa_unpack_depth_span(ctx, spanWidth, GL_UNSIGNED_INT, zValues, - (1 << 24) - 1, type, source, - &clippedUnpack); - } - - if (zoom) { - _mesa_problem(ctx, "Gallium glDrawPixels(GL_STENCIL) with " - "zoom not complete"); - } - - { - GLint spanY; - - if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { - spanY = height - row - 1; - } - else { - spanY = row; - } - - /* now pack the stencil (and Z) values in the dest format */ - switch (pt->resource->format) { - case PIPE_FORMAT_S8_USCALED: - { - ubyte *dest = stmap + spanY * pt->stride + spanX; - assert(usage == PIPE_TRANSFER_WRITE); - memcpy(dest, sValues, spanWidth); - } - break; - case PIPE_FORMAT_Z24_UNORM_S8_USCALED: - if (format == GL_DEPTH_STENCIL) { - uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); - GLint k; - assert(usage == PIPE_TRANSFER_WRITE); - for (k = 0; k < spanWidth; k++) { - dest[k] = zValues[k] | (sValues[k] << 24); - } - } - else { - uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); - GLint k; - assert(usage == PIPE_TRANSFER_READ_WRITE); - for (k = 0; k < spanWidth; k++) { - dest[k] = (dest[k] & 0xffffff) | (sValues[k] << 24); - } - } - break; - case PIPE_FORMAT_S8_USCALED_Z24_UNORM: - if (format == GL_DEPTH_STENCIL) { - uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); - GLint k; - assert(usage == PIPE_TRANSFER_WRITE); - for (k = 0; k < spanWidth; k++) { - dest[k] = (zValues[k] << 8) | (sValues[k] & 0xff); - } - } - else { - uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); - GLint k; - assert(usage == PIPE_TRANSFER_READ_WRITE); - for (k = 0; k < spanWidth; k++) { - dest[k] = (dest[k] & 0xffffff00) | (sValues[k] & 0xff); - } - } - break; - default: - assert(0); - } - } - } - skipPixels += spanWidth; - } - - _mesa_unmap_pbo_source(ctx, &clippedUnpack); - - /* unmap the stencil buffer */ - pipe_transfer_unmap(pipe, pt); - pipe->transfer_destroy(pipe, pt); -} - - -/** - * Get fragment program variant for a glDrawPixels or glCopyPixels - * command for RGBA data. - */ -static struct st_fp_variant * -get_color_fp_variant(struct st_context *st) -{ - struct gl_context *ctx = st->ctx; - struct st_fp_variant_key key; - struct st_fp_variant *fpv; - - memset(&key, 0, sizeof(key)); - - key.st = st; - key.drawpixels = 1; - key.scaleAndBias = (ctx->Pixel.RedBias != 0.0 || - ctx->Pixel.RedScale != 1.0 || - ctx->Pixel.GreenBias != 0.0 || - ctx->Pixel.GreenScale != 1.0 || - ctx->Pixel.BlueBias != 0.0 || - ctx->Pixel.BlueScale != 1.0 || - ctx->Pixel.AlphaBias != 0.0 || - ctx->Pixel.AlphaScale != 1.0); - key.pixelMaps = ctx->Pixel.MapColorFlag; - - fpv = st_get_fp_variant(st, st->fp, &key); - - return fpv; -} - - -/** - * Get fragment program variant for a glDrawPixels or glCopyPixels - * command for depth/stencil data. - */ -static struct st_fp_variant * -get_depth_stencil_fp_variant(struct st_context *st, GLboolean write_depth, - GLboolean write_stencil) -{ - struct st_fp_variant_key key; - struct st_fp_variant *fpv; - - memset(&key, 0, sizeof(key)); - - key.st = st; - key.drawpixels = 1; - key.drawpixels_z = write_depth; - key.drawpixels_stencil = write_stencil; - - fpv = st_get_fp_variant(st, st->fp, &key); - - return fpv; -} - - -/** - * Called via ctx->Driver.DrawPixels() - */ -static void -st_DrawPixels(struct gl_context *ctx, GLint x, GLint y, - GLsizei width, GLsizei height, - GLenum format, GLenum type, - const struct gl_pixelstore_attrib *unpack, const GLvoid *pixels) -{ - void *driver_vp, *driver_fp; - struct st_context *st = st_context(ctx); - const GLfloat *color; - struct pipe_context *pipe = st->pipe; - GLboolean write_stencil = GL_FALSE, write_depth = GL_FALSE; - struct pipe_sampler_view *sv[2]; - int num_sampler_view = 1; - enum pipe_format stencil_format = PIPE_FORMAT_NONE; - struct st_fp_variant *fpv; - - if (format == GL_DEPTH_STENCIL) - write_stencil = write_depth = GL_TRUE; - else if (format == GL_STENCIL_INDEX) - write_stencil = GL_TRUE; - else if (format == GL_DEPTH_COMPONENT) - write_depth = GL_TRUE; - - if (write_stencil) { - enum pipe_format tex_format; - /* can we write to stencil if not fallback */ - if (!pipe->screen->get_param(pipe->screen, PIPE_CAP_SHADER_STENCIL_EXPORT)) - goto stencil_fallback; - - tex_format = st_choose_format(st->pipe->screen, base_format(format), - PIPE_TEXTURE_2D, - 0, PIPE_BIND_SAMPLER_VIEW); - if (tex_format == PIPE_FORMAT_Z24_UNORM_S8_USCALED) - stencil_format = PIPE_FORMAT_X24S8_USCALED; - else if (tex_format == PIPE_FORMAT_S8_USCALED_Z24_UNORM) - stencil_format = PIPE_FORMAT_S8X24_USCALED; - else - stencil_format = PIPE_FORMAT_S8_USCALED; - if (stencil_format == PIPE_FORMAT_NONE) - goto stencil_fallback; - } - - /* Mesa state should be up to date by now */ - assert(ctx->NewState == 0x0); - - st_validate_state(st); - - /* - * Get vertex/fragment shaders - */ - if (write_depth || write_stencil) { - fpv = get_depth_stencil_fp_variant(st, write_depth, write_stencil); - - driver_fp = fpv->driver_shader; - - driver_vp = make_passthrough_vertex_shader(st, GL_TRUE); - - color = ctx->Current.RasterColor; - } - else { - fpv = get_color_fp_variant(st); - - driver_fp = fpv->driver_shader; - - driver_vp = make_passthrough_vertex_shader(st, GL_FALSE); - - color = NULL; - if (st->pixel_xfer.pixelmap_enabled) { - sv[1] = st->pixel_xfer.pixelmap_sampler_view; - num_sampler_view++; - } - } - - /* update fragment program constants */ - st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT); - - /* draw with textured quad */ - { - struct pipe_resource *pt - = make_texture(st, width, height, format, type, unpack, pixels); - if (pt) { - sv[0] = st_create_texture_sampler_view(st->pipe, pt); - - if (sv[0]) { - if (write_stencil) { - sv[1] = st_create_texture_sampler_view_format(st->pipe, pt, - stencil_format); - num_sampler_view++; - } - - draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2], - width, height, - ctx->Pixel.ZoomX, ctx->Pixel.ZoomY, - sv, - num_sampler_view, - driver_vp, - driver_fp, - color, GL_FALSE, write_depth, write_stencil); - pipe_sampler_view_reference(&sv[0], NULL); - if (num_sampler_view > 1) - pipe_sampler_view_reference(&sv[1], NULL); - } - pipe_resource_reference(&pt, NULL); - } - } - return; - -stencil_fallback: - draw_stencil_pixels(ctx, x, y, width, height, format, type, - unpack, pixels); -} - - - -/** - * Software fallback for glCopyPixels(GL_STENCIL). - */ -static void -copy_stencil_pixels(struct gl_context *ctx, GLint srcx, GLint srcy, - GLsizei width, GLsizei height, - GLint dstx, GLint dsty) -{ - struct st_renderbuffer *rbDraw; - struct pipe_context *pipe = st_context(ctx)->pipe; - enum pipe_transfer_usage usage; - struct pipe_transfer *ptDraw; - ubyte *drawMap; - ubyte *buffer; - int i; - - buffer = malloc(width * height * sizeof(ubyte)); - if (!buffer) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyPixels(stencil)"); - return; - } - - /* Get the dest renderbuffer. If there's a wrapper, use the - * underlying renderbuffer. - */ - rbDraw = st_renderbuffer(ctx->DrawBuffer->_StencilBuffer); - if (rbDraw->Base.Wrapped) - rbDraw = st_renderbuffer(rbDraw->Base.Wrapped); - - /* this will do stencil pixel transfer ops */ - st_read_stencil_pixels(ctx, srcx, srcy, width, height, - GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, - &ctx->DefaultPacking, buffer); - - if (0) { - /* debug code: dump stencil values */ - GLint row, col; - for (row = 0; row < height; row++) { - printf("%3d: ", row); - for (col = 0; col < width; col++) { - printf("%02x ", buffer[col + row * width]); - } - printf("\n"); - } - } - - if (util_format_get_component_bits(rbDraw->format, - UTIL_FORMAT_COLORSPACE_ZS, 0) != 0) - usage = PIPE_TRANSFER_READ_WRITE; - else - usage = PIPE_TRANSFER_WRITE; - - if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { - dsty = rbDraw->Base.Height - dsty - height; - } - - ptDraw = pipe_get_transfer(st_context(ctx)->pipe, - rbDraw->texture, 0, 0, - usage, dstx, dsty, - width, height); - - assert(util_format_get_blockwidth(ptDraw->resource->format) == 1); - assert(util_format_get_blockheight(ptDraw->resource->format) == 1); - - /* map the stencil buffer */ - drawMap = pipe_transfer_map(pipe, ptDraw); - - /* draw */ - /* XXX PixelZoom not handled yet */ - for (i = 0; i < height; i++) { - ubyte *dst; - const ubyte *src; - int y; - - y = i; - - if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { - y = height - y - 1; - } - - dst = drawMap + y * ptDraw->stride; - src = buffer + i * width; - - switch (ptDraw->resource->format) { - case PIPE_FORMAT_Z24_UNORM_S8_USCALED: - { - uint *dst4 = (uint *) dst; - int j; - assert(usage == PIPE_TRANSFER_READ_WRITE); - for (j = 0; j < width; j++) { - *dst4 = (*dst4 & 0xffffff) | (src[j] << 24); - dst4++; - } - } - break; - case PIPE_FORMAT_S8_USCALED_Z24_UNORM: - { - uint *dst4 = (uint *) dst; - int j; - assert(usage == PIPE_TRANSFER_READ_WRITE); - for (j = 0; j < width; j++) { - *dst4 = (*dst4 & 0xffffff00) | (src[j] & 0xff); - dst4++; - } - } - break; - case PIPE_FORMAT_S8_USCALED: - assert(usage == PIPE_TRANSFER_WRITE); - memcpy(dst, src, width); - break; - default: - assert(0); - } - } - - free(buffer); - - /* unmap the stencil buffer */ - pipe_transfer_unmap(pipe, ptDraw); - pipe->transfer_destroy(pipe, ptDraw); -} - - -/** Do the src/dest regions overlap? */ -static GLboolean -regions_overlap(GLint srcX, GLint srcY, GLint dstX, GLint dstY, - GLsizei width, GLsizei height) -{ - if (srcX + width <= dstX || - dstX + width <= srcX || - srcY + height <= dstY || - dstY + height <= srcY) - return GL_FALSE; - else - return GL_TRUE; -} - - -/** - * Try to do a glCopyPixels for simple cases with a blit by calling - * pipe->resource_copy_region(). - * - * We can do this when we're copying color pixels (depth/stencil - * eventually) with no pixel zoom, no pixel transfer ops, no - * per-fragment ops, the src/dest regions don't overlap and the - * src/dest pixel formats are the same. - */ -static GLboolean -blit_copy_pixels(struct gl_context *ctx, GLint srcx, GLint srcy, - GLsizei width, GLsizei height, - GLint dstx, GLint dsty, GLenum type) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct gl_pixelstore_attrib pack, unpack; - GLint readX, readY, readW, readH; - - if (type == GL_COLOR && - ctx->Pixel.ZoomX == 1.0 && - ctx->Pixel.ZoomY == 1.0 && - ctx->_ImageTransferState == 0x0 && - !ctx->Color.BlendEnabled && - !ctx->Color.AlphaEnabled && - !ctx->Depth.Test && - !ctx->Fog.Enabled && - !ctx->Stencil.Enabled && - !ctx->FragmentProgram.Enabled && - !ctx->VertexProgram.Enabled && - !ctx->Shader.CurrentFragmentProgram && - st_fb_orientation(ctx->ReadBuffer) == st_fb_orientation(ctx->DrawBuffer) && - ctx->DrawBuffer->_NumColorDrawBuffers == 1) { - struct st_renderbuffer *rbRead, *rbDraw; - GLint drawX, drawY; - - /* - * Clip the read region against the src buffer bounds. - * We'll still allocate a temporary buffer/texture for the original - * src region size but we'll only read the region which is on-screen. - * This may mean that we draw garbage pixels into the dest region, but - * that's expected. - */ - readX = srcx; - readY = srcy; - readW = width; - readH = height; - pack = ctx->DefaultPacking; - if (!_mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack)) - return GL_TRUE; /* all done */ - - /* clip against dest buffer bounds and scissor box */ - drawX = dstx + pack.SkipPixels; - drawY = dsty + pack.SkipRows; - unpack = pack; - if (!_mesa_clip_drawpixels(ctx, &drawX, &drawY, &readW, &readH, &unpack)) - return GL_TRUE; /* all done */ - - readX = readX - pack.SkipPixels + unpack.SkipPixels; - readY = readY - pack.SkipRows + unpack.SkipRows; - - rbRead = st_get_color_read_renderbuffer(ctx); - rbDraw = st_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[0]); - - if ((rbRead != rbDraw || - !regions_overlap(readX, readY, drawX, drawY, readW, readH)) && - rbRead->Base.Format == rbDraw->Base.Format) { - struct pipe_box srcBox; - - /* flip src/dst position if needed */ - if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { - /* both buffers will have the same orientation */ - readY = ctx->ReadBuffer->Height - readY - readH; - drawY = ctx->DrawBuffer->Height - drawY - readH; - } - - u_box_2d(readX, readY, readW, readH, &srcBox); - - pipe->resource_copy_region(pipe, - rbDraw->texture, 0, drawX, drawY, 0, - rbRead->texture, 0, &srcBox); - return GL_TRUE; - } - } - - return GL_FALSE; -} - - -static void -st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy, - GLsizei width, GLsizei height, - GLint dstx, GLint dsty, GLenum type) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct pipe_screen *screen = pipe->screen; - struct st_renderbuffer *rbRead; - void *driver_vp, *driver_fp; - struct pipe_resource *pt; - struct pipe_sampler_view *sv[2]; - int num_sampler_view = 1; - GLfloat *color; - enum pipe_format srcFormat, texFormat; - GLboolean invertTex = GL_FALSE; - GLint readX, readY, readW, readH; - GLuint sample_count; - struct gl_pixelstore_attrib pack = ctx->DefaultPacking; - struct st_fp_variant *fpv; - - st_validate_state(st); - - if (type == GL_STENCIL) { - /* can't use texturing to do stencil */ - copy_stencil_pixels(ctx, srcx, srcy, width, height, dstx, dsty); - return; - } - - if (blit_copy_pixels(ctx, srcx, srcy, width, height, dstx, dsty, type)) - return; - - /* - * The subsequent code implements glCopyPixels by copying the source - * pixels into a temporary texture that's then applied to a textured quad. - * When we draw the textured quad, all the usual per-fragment operations - * are handled. - */ - - - /* - * Get vertex/fragment shaders - */ - if (type == GL_COLOR) { - rbRead = st_get_color_read_renderbuffer(ctx); - color = NULL; - - fpv = get_color_fp_variant(st); - driver_fp = fpv->driver_shader; - - driver_vp = make_passthrough_vertex_shader(st, GL_FALSE); - - if (st->pixel_xfer.pixelmap_enabled) { - sv[1] = st->pixel_xfer.pixelmap_sampler_view; - num_sampler_view++; - } - } - else { - assert(type == GL_DEPTH); - rbRead = st_renderbuffer(ctx->ReadBuffer->_DepthBuffer); - color = ctx->Current.Attrib[VERT_ATTRIB_COLOR0]; - - fpv = get_depth_stencil_fp_variant(st, GL_TRUE, GL_FALSE); - driver_fp = fpv->driver_shader; - - driver_vp = make_passthrough_vertex_shader(st, GL_TRUE); - } - - /* update fragment program constants */ - st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT); - - - if (rbRead->Base.Wrapped) - rbRead = st_renderbuffer(rbRead->Base.Wrapped); - - sample_count = rbRead->texture->nr_samples; - /* I believe this would be legal, presumably would need to do a resolve - for color, and for depth/stencil spec says to just use one of the - depth/stencil samples per pixel? Need some transfer clarifications. */ - assert(sample_count < 2); - - srcFormat = rbRead->texture->format; - - if (screen->is_format_supported(screen, srcFormat, st->internal_target, - sample_count, - PIPE_BIND_SAMPLER_VIEW, 0)) { - texFormat = srcFormat; - } - else { - /* srcFormat can't be used as a texture format */ - if (type == GL_DEPTH) { - texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT, - st->internal_target, sample_count, - PIPE_BIND_DEPTH_STENCIL); - assert(texFormat != PIPE_FORMAT_NONE); - } - else { - /* default color format */ - texFormat = st_choose_format(screen, GL_RGBA, st->internal_target, - sample_count, PIPE_BIND_SAMPLER_VIEW); - assert(texFormat != PIPE_FORMAT_NONE); - } - } - - /* Invert src region if needed */ - if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { - srcy = ctx->ReadBuffer->Height - srcy - height; - invertTex = !invertTex; - } - - /* Clip the read region against the src buffer bounds. - * We'll still allocate a temporary buffer/texture for the original - * src region size but we'll only read the region which is on-screen. - * This may mean that we draw garbage pixels into the dest region, but - * that's expected. - */ - readX = srcx; - readY = srcy; - readW = width; - readH = height; - _mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack); - readW = MAX2(0, readW); - readH = MAX2(0, readH); - - /* alloc temporary texture */ - pt = alloc_texture(st, width, height, texFormat); - if (!pt) - return; - - sv[0] = st_create_texture_sampler_view(st->pipe, pt); - if (!sv[0]) { - pipe_resource_reference(&pt, NULL); - return; - } - - /* Make temporary texture which is a copy of the src region. - */ - if (srcFormat == texFormat) { - struct pipe_box src_box; - u_box_2d(readX, readY, readW, readH, &src_box); - /* copy source framebuffer surface into mipmap/texture */ - pipe->resource_copy_region(pipe, - pt, /* dest tex */ - 0, - pack.SkipPixels, pack.SkipRows, 0, /* dest pos */ - rbRead->texture, /* src tex */ - 0, - &src_box); - - } - else { - /* CPU-based fallback/conversion */ - struct pipe_transfer *ptRead = - pipe_get_transfer(st->pipe, rbRead->texture, - 0, 0, /* level, layer */ - PIPE_TRANSFER_READ, - readX, readY, readW, readH); - struct pipe_transfer *ptTex; - enum pipe_transfer_usage transfer_usage; - - if (ST_DEBUG & DEBUG_FALLBACK) - debug_printf("%s: fallback processing\n", __FUNCTION__); - - if (type == GL_DEPTH && util_format_is_depth_and_stencil(pt->format)) - transfer_usage = PIPE_TRANSFER_READ_WRITE; - else - transfer_usage = PIPE_TRANSFER_WRITE; - - ptTex = pipe_get_transfer(st->pipe, pt, 0, 0, transfer_usage, - 0, 0, width, height); - - /* copy image from ptRead surface to ptTex surface */ - if (type == GL_COLOR) { - /* alternate path using get/put_tile() */ - GLfloat *buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); - enum pipe_format readFormat, drawFormat; - readFormat = util_format_linear(rbRead->texture->format); - drawFormat = util_format_linear(pt->format); - pipe_get_tile_rgba_format(pipe, ptRead, 0, 0, readW, readH, - readFormat, buf); - pipe_put_tile_rgba_format(pipe, ptTex, pack.SkipPixels, pack.SkipRows, - readW, readH, drawFormat, buf); - free(buf); - } - else { - /* GL_DEPTH */ - GLuint *buf = (GLuint *) malloc(width * height * sizeof(GLuint)); - pipe_get_tile_z(pipe, ptRead, 0, 0, readW, readH, buf); - pipe_put_tile_z(pipe, ptTex, pack.SkipPixels, pack.SkipRows, - readW, readH, buf); - free(buf); - } - - pipe->transfer_destroy(pipe, ptRead); - pipe->transfer_destroy(pipe, ptTex); - } - - /* OK, the texture 'pt' contains the src image/pixels. Now draw a - * textured quad with that texture. - */ - draw_textured_quad(ctx, dstx, dsty, ctx->Current.RasterPos[2], - width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY, - sv, - num_sampler_view, - driver_vp, - driver_fp, - color, invertTex, GL_FALSE, GL_FALSE); - - pipe_resource_reference(&pt, NULL); - pipe_sampler_view_reference(&sv[0], NULL); -} - - - -void st_init_drawpixels_functions(struct dd_function_table *functions) -{ - functions->DrawPixels = st_DrawPixels; - functions->CopyPixels = st_CopyPixels; -} - - -void -st_destroy_drawpix(struct st_context *st) -{ - GLuint i; - - for (i = 0; i < Elements(st->drawpix.shaders); i++) { - if (st->drawpix.shaders[i]) - _mesa_reference_fragprog(st->ctx, &st->drawpix.shaders[i], NULL); - } - - st_reference_fragprog(st, &st->pixel_xfer.combined_prog, NULL); - if (st->drawpix.vert_shaders[0]) - ureg_free_tokens(st->drawpix.vert_shaders[0]); - if (st->drawpix.vert_shaders[1]) - ureg_free_tokens(st->drawpix.vert_shaders[1]); -} - -#endif /* FEATURE_drawpix */ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Brian Paul + */ + +#include "main/imports.h" +#include "main/image.h" +#include "main/bufferobj.h" +#include "main/macros.h" +#include "main/mfeatures.h" +#include "main/mtypes.h" +#include "main/pack.h" +#include "main/pbo.h" +#include "main/texformat.h" +#include "main/texstore.h" +#include "program/program.h" +#include "program/prog_print.h" +#include "program/prog_instruction.h" + +#include "st_atom.h" +#include "st_atom_constbuf.h" +#include "st_cb_drawpixels.h" +#include "st_cb_readpixels.h" +#include "st_cb_fbo.h" +#include "st_context.h" +#include "st_debug.h" +#include "st_format.h" +#include "st_program.h" +#include "st_texture.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "tgsi/tgsi_ureg.h" +#include "util/u_draw_quad.h" +#include "util/u_format.h" +#include "util/u_inlines.h" +#include "util/u_math.h" +#include "util/u_tile.h" +#include "cso_cache/cso_context.h" + + +#if FEATURE_drawpix + +/** + * Check if the given program is: + * 0: MOVE result.color, fragment.color; + * 1: END; + */ +static GLboolean +is_passthrough_program(const struct gl_fragment_program *prog) +{ + if (prog->Base.NumInstructions == 2) { + const struct prog_instruction *inst = prog->Base.Instructions; + if (inst[0].Opcode == OPCODE_MOV && + inst[1].Opcode == OPCODE_END && + inst[0].DstReg.File == PROGRAM_OUTPUT && + inst[0].DstReg.Index == FRAG_RESULT_COLOR && + inst[0].DstReg.WriteMask == WRITEMASK_XYZW && + inst[0].SrcReg[0].File == PROGRAM_INPUT && + inst[0].SrcReg[0].Index == FRAG_ATTRIB_COL0 && + inst[0].SrcReg[0].Swizzle == SWIZZLE_XYZW) { + return GL_TRUE; + } + } + return GL_FALSE; +} + + + +/** + * Make fragment shader for glDraw/CopyPixels. This shader is made + * by combining the pixel transfer shader with the user-defined shader. + * \param fpIn the current/incoming fragment program + * \param fpOut returns the combined fragment program + */ +void +st_make_drawpix_fragment_program(struct st_context *st, + struct gl_fragment_program *fpIn, + struct gl_fragment_program **fpOut) +{ + struct gl_program *newProg; + + if (is_passthrough_program(fpIn)) { + newProg = (struct gl_program *) _mesa_clone_fragment_program(st->ctx, + &st->pixel_xfer.program->Base); + } + else { +#if 0 + /* debug */ + printf("Base program:\n"); + _mesa_print_program(&fpIn->Base); + printf("DrawPix program:\n"); + _mesa_print_program(&st->pixel_xfer.program->Base.Base); +#endif + newProg = _mesa_combine_programs(st->ctx, + &st->pixel_xfer.program->Base.Base, + &fpIn->Base); + } + +#if 0 + /* debug */ + printf("Combined DrawPixels program:\n"); + _mesa_print_program(newProg); + printf("InputsRead: 0x%x\n", newProg->InputsRead); + printf("OutputsWritten: 0x%x\n", newProg->OutputsWritten); + _mesa_print_parameter_list(newProg->Parameters); +#endif + + *fpOut = (struct gl_fragment_program *) newProg; +} + + +/** + * Create fragment program that does a TEX() instruction to get a Z and/or + * stencil value value, then writes to FRAG_RESULT_DEPTH/FRAG_RESULT_STENCIL. + * Used for glDrawPixels(GL_DEPTH_COMPONENT / GL_STENCIL_INDEX). + * Pass fragment color through as-is. + * \return pointer to the gl_fragment program + */ +struct gl_fragment_program * +st_make_drawpix_z_stencil_program(struct st_context *st, + GLboolean write_depth, + GLboolean write_stencil) +{ + struct gl_context *ctx = st->ctx; + struct gl_program *p; + struct gl_fragment_program *fp; + GLuint ic = 0; + const GLuint shaderIndex = write_depth * 2 + write_stencil; + + assert(shaderIndex < Elements(st->drawpix.shaders)); + + if (st->drawpix.shaders[shaderIndex]) { + /* already have the proper shader */ + return st->drawpix.shaders[shaderIndex]; + } + + /* + * Create shader now + */ + p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); + if (!p) + return NULL; + + p->NumInstructions = write_depth ? 2 : 1; + p->NumInstructions += write_stencil ? 1 : 0; + + p->Instructions = _mesa_alloc_instructions(p->NumInstructions); + if (!p->Instructions) { + ctx->Driver.DeleteProgram(ctx, p); + return NULL; + } + _mesa_init_instructions(p->Instructions, p->NumInstructions); + + if (write_depth) { + /* TEX result.depth, fragment.texcoord[0], texture[0], 2D; */ + p->Instructions[ic].Opcode = OPCODE_TEX; + p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT; + p->Instructions[ic].DstReg.Index = FRAG_RESULT_DEPTH; + p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Z; + p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; + p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; + p->Instructions[ic].TexSrcUnit = 0; + p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; + ic++; + } + + if (write_stencil) { + /* TEX result.stencil, fragment.texcoord[0], texture[0], 2D; */ + p->Instructions[ic].Opcode = OPCODE_TEX; + p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT; + p->Instructions[ic].DstReg.Index = FRAG_RESULT_STENCIL; + p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Y; + p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; + p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; + p->Instructions[ic].TexSrcUnit = 1; + p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; + ic++; + } + + /* END; */ + p->Instructions[ic++].Opcode = OPCODE_END; + + assert(ic == p->NumInstructions); + + p->InputsRead = FRAG_BIT_TEX0 | FRAG_BIT_COL0; + p->OutputsWritten = 0; + if (write_depth) + p->OutputsWritten |= (1 << FRAG_RESULT_DEPTH); + if (write_stencil) + p->OutputsWritten |= (1 << FRAG_RESULT_STENCIL); + + p->SamplersUsed = 0x1; /* sampler 0 (bit 0) is used */ + if (write_stencil) + p->SamplersUsed |= 1 << 1; + + fp = (struct gl_fragment_program *) p; + + /* save the new shader */ + st->drawpix.shaders[shaderIndex] = fp; + + return fp; +} + + +/** + * Create a simple vertex shader that just passes through the + * vertex position and texcoord (and optionally, color). + */ +static void * +make_passthrough_vertex_shader(struct st_context *st, + GLboolean passColor) +{ + if (!st->drawpix.vert_shaders[passColor]) { + struct ureg_program *ureg = ureg_create( TGSI_PROCESSOR_VERTEX ); + + if (ureg == NULL) + return NULL; + + /* MOV result.pos, vertex.pos; */ + ureg_MOV(ureg, + ureg_DECL_output( ureg, TGSI_SEMANTIC_POSITION, 0 ), + ureg_DECL_vs_input( ureg, 0 )); + + /* MOV result.texcoord0, vertex.attr[1]; */ + ureg_MOV(ureg, + ureg_DECL_output( ureg, TGSI_SEMANTIC_GENERIC, 0 ), + ureg_DECL_vs_input( ureg, 1 )); + + if (passColor) { + /* MOV result.color0, vertex.attr[2]; */ + ureg_MOV(ureg, + ureg_DECL_output( ureg, TGSI_SEMANTIC_COLOR, 0 ), + ureg_DECL_vs_input( ureg, 2 )); + } + + ureg_END( ureg ); + + st->drawpix.vert_shaders[passColor] = + ureg_create_shader_and_destroy( ureg, st->pipe ); + } + + return st->drawpix.vert_shaders[passColor]; +} + + +/** + * Return a texture base format for drawing/copying an image + * of the given format. + */ +static GLenum +base_format(GLenum format) +{ + switch (format) { + case GL_DEPTH_COMPONENT: + return GL_DEPTH_COMPONENT; + case GL_DEPTH_STENCIL: + return GL_DEPTH_STENCIL; + case GL_STENCIL_INDEX: + return GL_STENCIL_INDEX; + default: + return GL_RGBA; + } +} + + +/** + * Return a texture internalFormat for drawing/copying an image + * of the given format and type. + */ +static GLenum +internal_format(GLenum format, GLenum type) +{ + switch (format) { + case GL_DEPTH_COMPONENT: + return GL_DEPTH_COMPONENT; + case GL_DEPTH_STENCIL: + return GL_DEPTH_STENCIL; + case GL_STENCIL_INDEX: + return GL_STENCIL_INDEX; + default: + if (_mesa_is_integer_format(format)) { + switch (type) { + case GL_BYTE: + return GL_RGBA8I; + case GL_UNSIGNED_BYTE: + return GL_RGBA8UI; + case GL_SHORT: + return GL_RGBA16I; + case GL_UNSIGNED_SHORT: + return GL_RGBA16UI; + case GL_INT: + return GL_RGBA32I; + case GL_UNSIGNED_INT: + return GL_RGBA32UI; + default: + assert(0 && "Unexpected type in internal_format()"); + return GL_RGBA_INTEGER; + } + } + else { + return GL_RGBA; + } + } +} + + +/** + * Create a temporary texture to hold an image of the given size. + * If width, height are not POT and the driver only handles POT textures, + * allocate the next larger size of texture that is POT. + */ +static struct pipe_resource * +alloc_texture(struct st_context *st, GLsizei width, GLsizei height, + enum pipe_format texFormat) +{ + struct pipe_resource *pt; + + pt = st_texture_create(st, st->internal_target, texFormat, 0, + width, height, 1, 1, PIPE_BIND_SAMPLER_VIEW); + + return pt; +} + + +/** + * Make texture containing an image for glDrawPixels image. + * If 'pixels' is NULL, leave the texture image data undefined. + */ +static struct pipe_resource * +make_texture(struct st_context *st, + GLsizei width, GLsizei height, GLenum format, GLenum type, + const struct gl_pixelstore_attrib *unpack, + const GLvoid *pixels) +{ + struct gl_context *ctx = st->ctx; + struct pipe_context *pipe = st->pipe; + gl_format mformat; + struct pipe_resource *pt; + enum pipe_format pipeFormat; + GLuint cpp; + GLenum baseFormat, intFormat; + + baseFormat = base_format(format); + intFormat = internal_format(format, type); + + mformat = st_ChooseTextureFormat_renderable(ctx, intFormat, + format, type, GL_FALSE); + assert(mformat); + + pipeFormat = st_mesa_format_to_pipe_format(mformat); + assert(pipeFormat); + cpp = util_format_get_blocksize(pipeFormat); + + pixels = _mesa_map_pbo_source(ctx, unpack, pixels); + if (!pixels) + return NULL; + + /* alloc temporary texture */ + pt = alloc_texture(st, width, height, pipeFormat); + if (!pt) { + _mesa_unmap_pbo_source(ctx, unpack); + return NULL; + } + + { + struct pipe_transfer *transfer; + static const GLuint dstImageOffsets = 0; + GLboolean success; + GLubyte *dest; + const GLbitfield imageTransferStateSave = ctx->_ImageTransferState; + + /* we'll do pixel transfer in a fragment shader */ + ctx->_ImageTransferState = 0x0; + + transfer = pipe_get_transfer(st->pipe, pt, 0, 0, + PIPE_TRANSFER_WRITE, 0, 0, + width, height); + + /* map texture transfer */ + dest = pipe_transfer_map(pipe, transfer); + + + /* Put image into texture transfer. + * Note that the image is actually going to be upside down in + * the texture. We deal with that with texcoords. + */ + success = _mesa_texstore(ctx, 2, /* dims */ + baseFormat, /* baseInternalFormat */ + mformat, /* gl_format */ + dest, /* dest */ + 0, 0, 0, /* dstX/Y/Zoffset */ + transfer->stride, /* dstRowStride, bytes */ + &dstImageOffsets, /* dstImageOffsets */ + width, height, 1, /* size */ + format, type, /* src format/type */ + pixels, /* data source */ + unpack); + + /* unmap */ + pipe_transfer_unmap(pipe, transfer); + pipe->transfer_destroy(pipe, transfer); + + assert(success); + + /* restore */ + ctx->_ImageTransferState = imageTransferStateSave; + } + + _mesa_unmap_pbo_source(ctx, unpack); + + return pt; +} + + +/** + * Draw quad with texcoords and optional color. + * Coords are gallium window coords with y=0=top. + * \param color may be null + * \param invertTex if true, flip texcoords vertically + */ +static void +draw_quad(struct gl_context *ctx, GLfloat x0, GLfloat y0, GLfloat z, + GLfloat x1, GLfloat y1, const GLfloat *color, + GLboolean invertTex, GLfloat maxXcoord, GLfloat maxYcoord) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + GLfloat verts[4][3][4]; /* four verts, three attribs, XYZW */ + + /* setup vertex data */ + { + const struct gl_framebuffer *fb = st->ctx->DrawBuffer; + const GLfloat fb_width = (GLfloat) fb->Width; + const GLfloat fb_height = (GLfloat) fb->Height; + const GLfloat clip_x0 = x0 / fb_width * 2.0f - 1.0f; + const GLfloat clip_y0 = y0 / fb_height * 2.0f - 1.0f; + const GLfloat clip_x1 = x1 / fb_width * 2.0f - 1.0f; + const GLfloat clip_y1 = y1 / fb_height * 2.0f - 1.0f; + const GLfloat sLeft = 0.0f, sRight = maxXcoord; + const GLfloat tTop = invertTex ? maxYcoord : 0.0f; + const GLfloat tBot = invertTex ? 0.0f : maxYcoord; + GLuint i; + + /* upper-left */ + verts[0][0][0] = clip_x0; /* v[0].attr[0].x */ + verts[0][0][1] = clip_y0; /* v[0].attr[0].y */ + + /* upper-right */ + verts[1][0][0] = clip_x1; + verts[1][0][1] = clip_y0; + + /* lower-right */ + verts[2][0][0] = clip_x1; + verts[2][0][1] = clip_y1; + + /* lower-left */ + verts[3][0][0] = clip_x0; + verts[3][0][1] = clip_y1; + + verts[0][1][0] = sLeft; /* v[0].attr[1].S */ + verts[0][1][1] = tTop; /* v[0].attr[1].T */ + verts[1][1][0] = sRight; + verts[1][1][1] = tTop; + verts[2][1][0] = sRight; + verts[2][1][1] = tBot; + verts[3][1][0] = sLeft; + verts[3][1][1] = tBot; + + /* same for all verts: */ + if (color) { + for (i = 0; i < 4; i++) { + verts[i][0][2] = z; /* v[i].attr[0].z */ + verts[i][0][3] = 1.0f; /* v[i].attr[0].w */ + verts[i][2][0] = color[0]; /* v[i].attr[2].r */ + verts[i][2][1] = color[1]; /* v[i].attr[2].g */ + verts[i][2][2] = color[2]; /* v[i].attr[2].b */ + verts[i][2][3] = color[3]; /* v[i].attr[2].a */ + verts[i][1][2] = 0.0f; /* v[i].attr[1].R */ + verts[i][1][3] = 1.0f; /* v[i].attr[1].Q */ + } + } + else { + for (i = 0; i < 4; i++) { + verts[i][0][2] = z; /*Z*/ + verts[i][0][3] = 1.0f; /*W*/ + verts[i][1][2] = 0.0f; /*R*/ + verts[i][1][3] = 1.0f; /*Q*/ + } + } + } + + { + struct pipe_resource *buf; + + /* allocate/load buffer object with vertex data */ + buf = pipe_buffer_create(pipe->screen, + PIPE_BIND_VERTEX_BUFFER, + PIPE_USAGE_STATIC, + sizeof(verts)); + pipe_buffer_write(st->pipe, buf, 0, sizeof(verts), verts); + + util_draw_vertex_buffer(pipe, st->cso_context, buf, 0, + PIPE_PRIM_QUADS, + 4, /* verts */ + 3); /* attribs/vert */ + pipe_resource_reference(&buf, NULL); + } +} + + + +static void +draw_textured_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z, + GLsizei width, GLsizei height, + GLfloat zoomX, GLfloat zoomY, + struct pipe_sampler_view **sv, + int num_sampler_view, + void *driver_vp, + void *driver_fp, + const GLfloat *color, + GLboolean invertTex, + GLboolean write_depth, GLboolean write_stencil) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct cso_context *cso = st->cso_context; + GLfloat x0, y0, x1, y1; + GLsizei maxSize; + boolean normalized = sv[0]->texture->target != PIPE_TEXTURE_RECT; + + /* limit checks */ + /* XXX if DrawPixels image is larger than max texture size, break + * it up into chunks. + */ + maxSize = 1 << (pipe->screen->get_param(pipe->screen, + PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); + assert(width <= maxSize); + assert(height <= maxSize); + + cso_save_rasterizer(cso); + cso_save_viewport(cso); + cso_save_samplers(cso); + cso_save_fragment_sampler_views(cso); + cso_save_fragment_shader(cso); + cso_save_vertex_shader(cso); + cso_save_vertex_elements(cso); + cso_save_vertex_buffers(cso); + if (write_stencil) { + cso_save_depth_stencil_alpha(cso); + cso_save_blend(cso); + } + + /* rasterizer state: just scissor */ + { + struct pipe_rasterizer_state rasterizer; + memset(&rasterizer, 0, sizeof(rasterizer)); + rasterizer.gl_rasterization_rules = 1; + rasterizer.scissor = ctx->Scissor.Enabled; + cso_set_rasterizer(cso, &rasterizer); + } + + if (write_stencil) { + /* Stencil writing bypasses the normal fragment pipeline to + * disable color writing and set stencil test to always pass. + */ + struct pipe_depth_stencil_alpha_state dsa; + struct pipe_blend_state blend; + + /* depth/stencil */ + memset(&dsa, 0, sizeof(dsa)); + dsa.stencil[0].enabled = 1; + dsa.stencil[0].func = PIPE_FUNC_ALWAYS; + dsa.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff; + dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE; + if (write_depth) { + /* writing depth+stencil: depth test always passes */ + dsa.depth.enabled = 1; + dsa.depth.writemask = ctx->Depth.Mask; + dsa.depth.func = PIPE_FUNC_ALWAYS; + } + cso_set_depth_stencil_alpha(cso, &dsa); + + /* blend (colormask) */ + memset(&blend, 0, sizeof(blend)); + cso_set_blend(cso, &blend); + } + + /* fragment shader state: TEX lookup program */ + cso_set_fragment_shader_handle(cso, driver_fp); + + /* vertex shader state: position + texcoord pass-through */ + cso_set_vertex_shader_handle(cso, driver_vp); + + + /* texture sampling state: */ + { + struct pipe_sampler_state sampler; + memset(&sampler, 0, sizeof(sampler)); + sampler.wrap_s = PIPE_TEX_WRAP_CLAMP; + sampler.wrap_t = PIPE_TEX_WRAP_CLAMP; + sampler.wrap_r = PIPE_TEX_WRAP_CLAMP; + sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; + sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; + sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; + sampler.normalized_coords = normalized; + + cso_single_sampler(cso, 0, &sampler); + if (num_sampler_view > 1) { + cso_single_sampler(cso, 1, &sampler); + } + cso_single_sampler_done(cso); + } + + /* viewport state: viewport matching window dims */ + { + const float w = (float) ctx->DrawBuffer->Width; + const float h = (float) ctx->DrawBuffer->Height; + struct pipe_viewport_state vp; + vp.scale[0] = 0.5f * w; + vp.scale[1] = -0.5f * h; + vp.scale[2] = 0.5f; + vp.scale[3] = 1.0f; + vp.translate[0] = 0.5f * w; + vp.translate[1] = 0.5f * h; + vp.translate[2] = 0.5f; + vp.translate[3] = 0.0f; + cso_set_viewport(cso, &vp); + } + + cso_set_vertex_elements(cso, 3, st->velems_util_draw); + + /* texture state: */ + cso_set_fragment_sampler_views(cso, num_sampler_view, sv); + + /* Compute Gallium window coords (y=0=top) with pixel zoom. + * Recall that these coords are transformed by the current + * vertex shader and viewport transformation. + */ + if (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM) { + y = ctx->DrawBuffer->Height - (int) (y + height * ctx->Pixel.ZoomY); + invertTex = !invertTex; + } + + x0 = (GLfloat) x; + x1 = x + width * ctx->Pixel.ZoomX; + y0 = (GLfloat) y; + y1 = y + height * ctx->Pixel.ZoomY; + + /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */ + z = z * 2.0 - 1.0; + + draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex, + normalized ? ((GLfloat) width / sv[0]->texture->width0) : (GLfloat)width, + normalized ? ((GLfloat) height / sv[0]->texture->height0) : (GLfloat)height); + + /* restore state */ + cso_restore_rasterizer(cso); + cso_restore_viewport(cso); + cso_restore_samplers(cso); + cso_restore_fragment_sampler_views(cso); + cso_restore_fragment_shader(cso); + cso_restore_vertex_shader(cso); + cso_restore_vertex_elements(cso); + cso_restore_vertex_buffers(cso); + if (write_stencil) { + cso_restore_depth_stencil_alpha(cso); + cso_restore_blend(cso); + } +} + + +/** + * Software fallback to do glDrawPixels(GL_STENCIL_INDEX) when we + * can't use a fragment shader to write stencil values. + */ +static void +draw_stencil_pixels(struct gl_context *ctx, GLint x, GLint y, + GLsizei width, GLsizei height, GLenum format, GLenum type, + const struct gl_pixelstore_attrib *unpack, + const GLvoid *pixels) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct st_renderbuffer *strb; + enum pipe_transfer_usage usage; + struct pipe_transfer *pt; + const GLboolean zoom = ctx->Pixel.ZoomX != 1.0 || ctx->Pixel.ZoomY != 1.0; + GLint skipPixels; + ubyte *stmap; + struct gl_pixelstore_attrib clippedUnpack = *unpack; + + if (!zoom) { + if (!_mesa_clip_drawpixels(ctx, &x, &y, &width, &height, + &clippedUnpack)) { + /* totally clipped */ + return; + } + } + + strb = st_renderbuffer(ctx->DrawBuffer-> + Attachment[BUFFER_STENCIL].Renderbuffer); + + if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { + y = ctx->DrawBuffer->Height - y - height; + } + + if(format != GL_DEPTH_STENCIL && + util_format_get_component_bits(strb->format, + UTIL_FORMAT_COLORSPACE_ZS, 0) != 0) + usage = PIPE_TRANSFER_READ_WRITE; + else + usage = PIPE_TRANSFER_WRITE; + + pt = pipe_get_transfer(st_context(ctx)->pipe, strb->texture, 0, 0, + usage, x, y, + width, height); + + stmap = pipe_transfer_map(pipe, pt); + + pixels = _mesa_map_pbo_source(ctx, &clippedUnpack, pixels); + assert(pixels); + + /* if width > MAX_WIDTH, have to process image in chunks */ + skipPixels = 0; + while (skipPixels < width) { + const GLint spanX = skipPixels; + const GLint spanWidth = MIN2(width - skipPixels, MAX_WIDTH); + GLint row; + for (row = 0; row < height; row++) { + GLubyte sValues[MAX_WIDTH]; + GLuint zValues[MAX_WIDTH]; + GLenum destType = GL_UNSIGNED_BYTE; + const GLvoid *source = _mesa_image_address2d(&clippedUnpack, pixels, + width, height, + format, type, + row, skipPixels); + _mesa_unpack_stencil_span(ctx, spanWidth, destType, sValues, + type, source, &clippedUnpack, + ctx->_ImageTransferState); + + if (format == GL_DEPTH_STENCIL) { + _mesa_unpack_depth_span(ctx, spanWidth, GL_UNSIGNED_INT, zValues, + (1 << 24) - 1, type, source, + &clippedUnpack); + } + + if (zoom) { + _mesa_problem(ctx, "Gallium glDrawPixels(GL_STENCIL) with " + "zoom not complete"); + } + + { + GLint spanY; + + if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { + spanY = height - row - 1; + } + else { + spanY = row; + } + + /* now pack the stencil (and Z) values in the dest format */ + switch (pt->resource->format) { + case PIPE_FORMAT_S8_USCALED: + { + ubyte *dest = stmap + spanY * pt->stride + spanX; + assert(usage == PIPE_TRANSFER_WRITE); + memcpy(dest, sValues, spanWidth); + } + break; + case PIPE_FORMAT_Z24_UNORM_S8_USCALED: + if (format == GL_DEPTH_STENCIL) { + uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); + GLint k; + assert(usage == PIPE_TRANSFER_WRITE); + for (k = 0; k < spanWidth; k++) { + dest[k] = zValues[k] | (sValues[k] << 24); + } + } + else { + uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); + GLint k; + assert(usage == PIPE_TRANSFER_READ_WRITE); + for (k = 0; k < spanWidth; k++) { + dest[k] = (dest[k] & 0xffffff) | (sValues[k] << 24); + } + } + break; + case PIPE_FORMAT_S8_USCALED_Z24_UNORM: + if (format == GL_DEPTH_STENCIL) { + uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); + GLint k; + assert(usage == PIPE_TRANSFER_WRITE); + for (k = 0; k < spanWidth; k++) { + dest[k] = (zValues[k] << 8) | (sValues[k] & 0xff); + } + } + else { + uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); + GLint k; + assert(usage == PIPE_TRANSFER_READ_WRITE); + for (k = 0; k < spanWidth; k++) { + dest[k] = (dest[k] & 0xffffff00) | (sValues[k] & 0xff); + } + } + break; + default: + assert(0); + } + } + } + skipPixels += spanWidth; + } + + _mesa_unmap_pbo_source(ctx, &clippedUnpack); + + /* unmap the stencil buffer */ + pipe_transfer_unmap(pipe, pt); + pipe->transfer_destroy(pipe, pt); +} + + +/** + * Get fragment program variant for a glDrawPixels or glCopyPixels + * command for RGBA data. + */ +static struct st_fp_variant * +get_color_fp_variant(struct st_context *st) +{ + struct gl_context *ctx = st->ctx; + struct st_fp_variant_key key; + struct st_fp_variant *fpv; + + memset(&key, 0, sizeof(key)); + + key.st = st; + key.drawpixels = 1; + key.scaleAndBias = (ctx->Pixel.RedBias != 0.0 || + ctx->Pixel.RedScale != 1.0 || + ctx->Pixel.GreenBias != 0.0 || + ctx->Pixel.GreenScale != 1.0 || + ctx->Pixel.BlueBias != 0.0 || + ctx->Pixel.BlueScale != 1.0 || + ctx->Pixel.AlphaBias != 0.0 || + ctx->Pixel.AlphaScale != 1.0); + key.pixelMaps = ctx->Pixel.MapColorFlag; + + fpv = st_get_fp_variant(st, st->fp, &key); + + return fpv; +} + + +/** + * Get fragment program variant for a glDrawPixels or glCopyPixels + * command for depth/stencil data. + */ +static struct st_fp_variant * +get_depth_stencil_fp_variant(struct st_context *st, GLboolean write_depth, + GLboolean write_stencil) +{ + struct st_fp_variant_key key; + struct st_fp_variant *fpv; + + memset(&key, 0, sizeof(key)); + + key.st = st; + key.drawpixels = 1; + key.drawpixels_z = write_depth; + key.drawpixels_stencil = write_stencil; + + fpv = st_get_fp_variant(st, st->fp, &key); + + return fpv; +} + + +/** + * Called via ctx->Driver.DrawPixels() + */ +static void +st_DrawPixels(struct gl_context *ctx, GLint x, GLint y, + GLsizei width, GLsizei height, + GLenum format, GLenum type, + const struct gl_pixelstore_attrib *unpack, const GLvoid *pixels) +{ + void *driver_vp, *driver_fp; + struct st_context *st = st_context(ctx); + const GLfloat *color; + struct pipe_context *pipe = st->pipe; + GLboolean write_stencil = GL_FALSE, write_depth = GL_FALSE; + struct pipe_sampler_view *sv[2]; + int num_sampler_view = 1; + enum pipe_format stencil_format = PIPE_FORMAT_NONE; + struct st_fp_variant *fpv; + + if (format == GL_DEPTH_STENCIL) + write_stencil = write_depth = GL_TRUE; + else if (format == GL_STENCIL_INDEX) + write_stencil = GL_TRUE; + else if (format == GL_DEPTH_COMPONENT) + write_depth = GL_TRUE; + + if (write_stencil) { + enum pipe_format tex_format; + /* can we write to stencil if not fallback */ + if (!pipe->screen->get_param(pipe->screen, PIPE_CAP_SHADER_STENCIL_EXPORT)) + goto stencil_fallback; + + tex_format = st_choose_format(st->pipe->screen, base_format(format), + PIPE_TEXTURE_2D, + 0, PIPE_BIND_SAMPLER_VIEW); + if (tex_format == PIPE_FORMAT_Z24_UNORM_S8_USCALED) + stencil_format = PIPE_FORMAT_X24S8_USCALED; + else if (tex_format == PIPE_FORMAT_S8_USCALED_Z24_UNORM) + stencil_format = PIPE_FORMAT_S8X24_USCALED; + else + stencil_format = PIPE_FORMAT_S8_USCALED; + if (stencil_format == PIPE_FORMAT_NONE) + goto stencil_fallback; + } + + /* Mesa state should be up to date by now */ + assert(ctx->NewState == 0x0); + + st_validate_state(st); + + /* + * Get vertex/fragment shaders + */ + if (write_depth || write_stencil) { + fpv = get_depth_stencil_fp_variant(st, write_depth, write_stencil); + + driver_fp = fpv->driver_shader; + + driver_vp = make_passthrough_vertex_shader(st, GL_TRUE); + + color = ctx->Current.RasterColor; + } + else { + fpv = get_color_fp_variant(st); + + driver_fp = fpv->driver_shader; + + driver_vp = make_passthrough_vertex_shader(st, GL_FALSE); + + color = NULL; + if (st->pixel_xfer.pixelmap_enabled) { + sv[1] = st->pixel_xfer.pixelmap_sampler_view; + num_sampler_view++; + } + } + + /* update fragment program constants */ + st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT); + + /* draw with textured quad */ + { + struct pipe_resource *pt + = make_texture(st, width, height, format, type, unpack, pixels); + if (pt) { + sv[0] = st_create_texture_sampler_view(st->pipe, pt); + + if (sv[0]) { + if (write_stencil) { + sv[1] = st_create_texture_sampler_view_format(st->pipe, pt, + stencil_format); + num_sampler_view++; + } + + draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2], + width, height, + ctx->Pixel.ZoomX, ctx->Pixel.ZoomY, + sv, + num_sampler_view, + driver_vp, + driver_fp, + color, GL_FALSE, write_depth, write_stencil); + pipe_sampler_view_reference(&sv[0], NULL); + if (num_sampler_view > 1) + pipe_sampler_view_reference(&sv[1], NULL); + } + pipe_resource_reference(&pt, NULL); + } + } + return; + +stencil_fallback: + draw_stencil_pixels(ctx, x, y, width, height, format, type, + unpack, pixels); +} + + + +/** + * Software fallback for glCopyPixels(GL_STENCIL). + */ +static void +copy_stencil_pixels(struct gl_context *ctx, GLint srcx, GLint srcy, + GLsizei width, GLsizei height, + GLint dstx, GLint dsty) +{ + struct st_renderbuffer *rbDraw; + struct pipe_context *pipe = st_context(ctx)->pipe; + enum pipe_transfer_usage usage; + struct pipe_transfer *ptDraw; + ubyte *drawMap; + ubyte *buffer; + int i; + + buffer = malloc(width * height * sizeof(ubyte)); + if (!buffer) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyPixels(stencil)"); + return; + } + + /* Get the dest renderbuffer. If there's a wrapper, use the + * underlying renderbuffer. + */ + rbDraw = st_renderbuffer(ctx->DrawBuffer->_StencilBuffer); + if (rbDraw->Base.Wrapped) + rbDraw = st_renderbuffer(rbDraw->Base.Wrapped); + + /* this will do stencil pixel transfer ops */ + st_read_stencil_pixels(ctx, srcx, srcy, width, height, + GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, + &ctx->DefaultPacking, buffer); + + if (0) { + /* debug code: dump stencil values */ + GLint row, col; + for (row = 0; row < height; row++) { + printf("%3d: ", row); + for (col = 0; col < width; col++) { + printf("%02x ", buffer[col + row * width]); + } + printf("\n"); + } + } + + if (util_format_get_component_bits(rbDraw->format, + UTIL_FORMAT_COLORSPACE_ZS, 0) != 0) + usage = PIPE_TRANSFER_READ_WRITE; + else + usage = PIPE_TRANSFER_WRITE; + + if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { + dsty = rbDraw->Base.Height - dsty - height; + } + + ptDraw = pipe_get_transfer(st_context(ctx)->pipe, + rbDraw->texture, 0, 0, + usage, dstx, dsty, + width, height); + + assert(util_format_get_blockwidth(ptDraw->resource->format) == 1); + assert(util_format_get_blockheight(ptDraw->resource->format) == 1); + + /* map the stencil buffer */ + drawMap = pipe_transfer_map(pipe, ptDraw); + + /* draw */ + /* XXX PixelZoom not handled yet */ + for (i = 0; i < height; i++) { + ubyte *dst; + const ubyte *src; + int y; + + y = i; + + if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { + y = height - y - 1; + } + + dst = drawMap + y * ptDraw->stride; + src = buffer + i * width; + + switch (ptDraw->resource->format) { + case PIPE_FORMAT_Z24_UNORM_S8_USCALED: + { + uint *dst4 = (uint *) dst; + int j; + assert(usage == PIPE_TRANSFER_READ_WRITE); + for (j = 0; j < width; j++) { + *dst4 = (*dst4 & 0xffffff) | (src[j] << 24); + dst4++; + } + } + break; + case PIPE_FORMAT_S8_USCALED_Z24_UNORM: + { + uint *dst4 = (uint *) dst; + int j; + assert(usage == PIPE_TRANSFER_READ_WRITE); + for (j = 0; j < width; j++) { + *dst4 = (*dst4 & 0xffffff00) | (src[j] & 0xff); + dst4++; + } + } + break; + case PIPE_FORMAT_S8_USCALED: + assert(usage == PIPE_TRANSFER_WRITE); + memcpy(dst, src, width); + break; + default: + assert(0); + } + } + + free(buffer); + + /* unmap the stencil buffer */ + pipe_transfer_unmap(pipe, ptDraw); + pipe->transfer_destroy(pipe, ptDraw); +} + + +/** Do the src/dest regions overlap? */ +static GLboolean +regions_overlap(GLint srcX, GLint srcY, GLint dstX, GLint dstY, + GLsizei width, GLsizei height) +{ + if (srcX + width <= dstX || + dstX + width <= srcX || + srcY + height <= dstY || + dstY + height <= srcY) + return GL_FALSE; + else + return GL_TRUE; +} + + +/** + * Try to do a glCopyPixels for simple cases with a blit by calling + * pipe->resource_copy_region(). + * + * We can do this when we're copying color pixels (depth/stencil + * eventually) with no pixel zoom, no pixel transfer ops, no + * per-fragment ops, the src/dest regions don't overlap and the + * src/dest pixel formats are the same. + */ +static GLboolean +blit_copy_pixels(struct gl_context *ctx, GLint srcx, GLint srcy, + GLsizei width, GLsizei height, + GLint dstx, GLint dsty, GLenum type) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct gl_pixelstore_attrib pack, unpack; + GLint readX, readY, readW, readH; + + if (type == GL_COLOR && + ctx->Pixel.ZoomX == 1.0 && + ctx->Pixel.ZoomY == 1.0 && + ctx->_ImageTransferState == 0x0 && + !ctx->Color.BlendEnabled && + !ctx->Color.AlphaEnabled && + !ctx->Depth.Test && + !ctx->Fog.Enabled && + !ctx->Stencil.Enabled && + !ctx->FragmentProgram.Enabled && + !ctx->VertexProgram.Enabled && + !ctx->Shader.CurrentFragmentProgram && + st_fb_orientation(ctx->ReadBuffer) == st_fb_orientation(ctx->DrawBuffer) && + ctx->DrawBuffer->_NumColorDrawBuffers == 1) { + struct st_renderbuffer *rbRead, *rbDraw; + GLint drawX, drawY; + + /* + * Clip the read region against the src buffer bounds. + * We'll still allocate a temporary buffer/texture for the original + * src region size but we'll only read the region which is on-screen. + * This may mean that we draw garbage pixels into the dest region, but + * that's expected. + */ + readX = srcx; + readY = srcy; + readW = width; + readH = height; + pack = ctx->DefaultPacking; + if (!_mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack)) + return GL_TRUE; /* all done */ + + /* clip against dest buffer bounds and scissor box */ + drawX = dstx + pack.SkipPixels; + drawY = dsty + pack.SkipRows; + unpack = pack; + if (!_mesa_clip_drawpixels(ctx, &drawX, &drawY, &readW, &readH, &unpack)) + return GL_TRUE; /* all done */ + + readX = readX - pack.SkipPixels + unpack.SkipPixels; + readY = readY - pack.SkipRows + unpack.SkipRows; + + rbRead = st_get_color_read_renderbuffer(ctx); + rbDraw = st_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[0]); + + if ((rbRead != rbDraw || + !regions_overlap(readX, readY, drawX, drawY, readW, readH)) && + rbRead->Base.Format == rbDraw->Base.Format) { + struct pipe_box srcBox; + + /* flip src/dst position if needed */ + if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { + /* both buffers will have the same orientation */ + readY = ctx->ReadBuffer->Height - readY - readH; + drawY = ctx->DrawBuffer->Height - drawY - readH; + } + + u_box_2d(readX, readY, readW, readH, &srcBox); + + pipe->resource_copy_region(pipe, + rbDraw->texture, 0, drawX, drawY, 0, + rbRead->texture, 0, &srcBox); + return GL_TRUE; + } + } + + return GL_FALSE; +} + + +static void +st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy, + GLsizei width, GLsizei height, + GLint dstx, GLint dsty, GLenum type) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct pipe_screen *screen = pipe->screen; + struct st_renderbuffer *rbRead; + void *driver_vp, *driver_fp; + struct pipe_resource *pt; + struct pipe_sampler_view *sv[2]; + int num_sampler_view = 1; + GLfloat *color; + enum pipe_format srcFormat, texFormat; + GLboolean invertTex = GL_FALSE; + GLint readX, readY, readW, readH; + GLuint sample_count; + struct gl_pixelstore_attrib pack = ctx->DefaultPacking; + struct st_fp_variant *fpv; + + st_validate_state(st); + + if (type == GL_STENCIL) { + /* can't use texturing to do stencil */ + copy_stencil_pixels(ctx, srcx, srcy, width, height, dstx, dsty); + return; + } + + if (blit_copy_pixels(ctx, srcx, srcy, width, height, dstx, dsty, type)) + return; + + /* + * The subsequent code implements glCopyPixels by copying the source + * pixels into a temporary texture that's then applied to a textured quad. + * When we draw the textured quad, all the usual per-fragment operations + * are handled. + */ + + + /* + * Get vertex/fragment shaders + */ + if (type == GL_COLOR) { + rbRead = st_get_color_read_renderbuffer(ctx); + color = NULL; + + fpv = get_color_fp_variant(st); + driver_fp = fpv->driver_shader; + + driver_vp = make_passthrough_vertex_shader(st, GL_FALSE); + + if (st->pixel_xfer.pixelmap_enabled) { + sv[1] = st->pixel_xfer.pixelmap_sampler_view; + num_sampler_view++; + } + } + else { + assert(type == GL_DEPTH); + rbRead = st_renderbuffer(ctx->ReadBuffer->_DepthBuffer); + color = ctx->Current.Attrib[VERT_ATTRIB_COLOR0]; + + fpv = get_depth_stencil_fp_variant(st, GL_TRUE, GL_FALSE); + driver_fp = fpv->driver_shader; + + driver_vp = make_passthrough_vertex_shader(st, GL_TRUE); + } + + /* update fragment program constants */ + st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT); + + + if (rbRead->Base.Wrapped) + rbRead = st_renderbuffer(rbRead->Base.Wrapped); + + sample_count = rbRead->texture->nr_samples; + /* I believe this would be legal, presumably would need to do a resolve + for color, and for depth/stencil spec says to just use one of the + depth/stencil samples per pixel? Need some transfer clarifications. */ + assert(sample_count < 2); + + srcFormat = rbRead->texture->format; + + if (screen->is_format_supported(screen, srcFormat, st->internal_target, + sample_count, + PIPE_BIND_SAMPLER_VIEW)) { + texFormat = srcFormat; + } + else { + /* srcFormat can't be used as a texture format */ + if (type == GL_DEPTH) { + texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT, + st->internal_target, sample_count, + PIPE_BIND_DEPTH_STENCIL); + assert(texFormat != PIPE_FORMAT_NONE); + } + else { + /* default color format */ + texFormat = st_choose_format(screen, GL_RGBA, st->internal_target, + sample_count, PIPE_BIND_SAMPLER_VIEW); + assert(texFormat != PIPE_FORMAT_NONE); + } + } + + /* Invert src region if needed */ + if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { + srcy = ctx->ReadBuffer->Height - srcy - height; + invertTex = !invertTex; + } + + /* Clip the read region against the src buffer bounds. + * We'll still allocate a temporary buffer/texture for the original + * src region size but we'll only read the region which is on-screen. + * This may mean that we draw garbage pixels into the dest region, but + * that's expected. + */ + readX = srcx; + readY = srcy; + readW = width; + readH = height; + _mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack); + readW = MAX2(0, readW); + readH = MAX2(0, readH); + + /* alloc temporary texture */ + pt = alloc_texture(st, width, height, texFormat); + if (!pt) + return; + + sv[0] = st_create_texture_sampler_view(st->pipe, pt); + if (!sv[0]) { + pipe_resource_reference(&pt, NULL); + return; + } + + /* Make temporary texture which is a copy of the src region. + */ + if (srcFormat == texFormat) { + struct pipe_box src_box; + u_box_2d(readX, readY, readW, readH, &src_box); + /* copy source framebuffer surface into mipmap/texture */ + pipe->resource_copy_region(pipe, + pt, /* dest tex */ + 0, + pack.SkipPixels, pack.SkipRows, 0, /* dest pos */ + rbRead->texture, /* src tex */ + 0, + &src_box); + + } + else { + /* CPU-based fallback/conversion */ + struct pipe_transfer *ptRead = + pipe_get_transfer(st->pipe, rbRead->texture, + 0, 0, /* level, layer */ + PIPE_TRANSFER_READ, + readX, readY, readW, readH); + struct pipe_transfer *ptTex; + enum pipe_transfer_usage transfer_usage; + + if (ST_DEBUG & DEBUG_FALLBACK) + debug_printf("%s: fallback processing\n", __FUNCTION__); + + if (type == GL_DEPTH && util_format_is_depth_and_stencil(pt->format)) + transfer_usage = PIPE_TRANSFER_READ_WRITE; + else + transfer_usage = PIPE_TRANSFER_WRITE; + + ptTex = pipe_get_transfer(st->pipe, pt, 0, 0, transfer_usage, + 0, 0, width, height); + + /* copy image from ptRead surface to ptTex surface */ + if (type == GL_COLOR) { + /* alternate path using get/put_tile() */ + GLfloat *buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); + enum pipe_format readFormat, drawFormat; + readFormat = util_format_linear(rbRead->texture->format); + drawFormat = util_format_linear(pt->format); + pipe_get_tile_rgba_format(pipe, ptRead, 0, 0, readW, readH, + readFormat, buf); + pipe_put_tile_rgba_format(pipe, ptTex, pack.SkipPixels, pack.SkipRows, + readW, readH, drawFormat, buf); + free(buf); + } + else { + /* GL_DEPTH */ + GLuint *buf = (GLuint *) malloc(width * height * sizeof(GLuint)); + pipe_get_tile_z(pipe, ptRead, 0, 0, readW, readH, buf); + pipe_put_tile_z(pipe, ptTex, pack.SkipPixels, pack.SkipRows, + readW, readH, buf); + free(buf); + } + + pipe->transfer_destroy(pipe, ptRead); + pipe->transfer_destroy(pipe, ptTex); + } + + /* OK, the texture 'pt' contains the src image/pixels. Now draw a + * textured quad with that texture. + */ + draw_textured_quad(ctx, dstx, dsty, ctx->Current.RasterPos[2], + width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY, + sv, + num_sampler_view, + driver_vp, + driver_fp, + color, invertTex, GL_FALSE, GL_FALSE); + + pipe_resource_reference(&pt, NULL); + pipe_sampler_view_reference(&sv[0], NULL); +} + + + +void st_init_drawpixels_functions(struct dd_function_table *functions) +{ + functions->DrawPixels = st_DrawPixels; + functions->CopyPixels = st_CopyPixels; +} + + +void +st_destroy_drawpix(struct st_context *st) +{ + GLuint i; + + for (i = 0; i < Elements(st->drawpix.shaders); i++) { + if (st->drawpix.shaders[i]) + _mesa_reference_fragprog(st->ctx, &st->drawpix.shaders[i], NULL); + } + + st_reference_fragprog(st, &st->pixel_xfer.combined_prog, NULL); + if (st->drawpix.vert_shaders[0]) + ureg_free_tokens(st->drawpix.vert_shaders[0]); + if (st->drawpix.vert_shaders[1]) + ureg_free_tokens(st->drawpix.vert_shaders[1]); +} + +#endif /* FEATURE_drawpix */ diff --git a/mesalib/src/mesa/state_tracker/st_cb_fbo.c b/mesalib/src/mesa/state_tracker/st_cb_fbo.c index ae49434ca..fe67b03b2 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_fbo.c +++ b/mesalib/src/mesa/state_tracker/st_cb_fbo.c @@ -1,645 +1,642 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - - -/** - * Framebuffer/renderbuffer functions. - * - * \author Brian Paul - */ - - -#include "main/imports.h" -#include "main/context.h" -#include "main/fbobject.h" -#include "main/framebuffer.h" -#include "main/macros.h" -#include "main/mfeatures.h" -#include "main/renderbuffer.h" - -#include "pipe/p_context.h" -#include "pipe/p_defines.h" -#include "pipe/p_screen.h" -#include "st_context.h" -#include "st_cb_fbo.h" -#include "st_cb_flush.h" -#include "st_format.h" -#include "st_texture.h" -#include "st_manager.h" - -#include "util/u_format.h" -#include "util/u_inlines.h" -#include "util/u_surface.h" - - -/** - * gl_renderbuffer::AllocStorage() - * This is called to allocate the original drawing surface, and - * during window resize. - */ -static GLboolean -st_renderbuffer_alloc_storage(struct gl_context * ctx, - struct gl_renderbuffer *rb, - GLenum internalFormat, - GLuint width, GLuint height) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct pipe_screen *screen = st->pipe->screen; - struct st_renderbuffer *strb = st_renderbuffer(rb); - enum pipe_format format; - struct pipe_surface surf_tmpl; - - if (strb->format != PIPE_FORMAT_NONE) - format = strb->format; - else - format = st_choose_renderbuffer_format(screen, internalFormat, - rb->NumSamples); - - if (format == PIPE_FORMAT_NONE) { - return FALSE; - } - - /* init renderbuffer fields */ - strb->Base.Width = width; - strb->Base.Height = height; - strb->Base.Format = st_pipe_format_to_mesa_format(format); - strb->Base._BaseFormat = _mesa_base_fbo_format(ctx, internalFormat); - strb->Base.DataType = st_format_datatype(format); - - strb->defined = GL_FALSE; /* undefined contents now */ - - if (strb->software) { - size_t size; - - free(strb->data); - - assert(strb->format != PIPE_FORMAT_NONE); - - strb->stride = util_format_get_stride(strb->format, width); - size = util_format_get_2d_size(strb->format, strb->stride, height); - - strb->data = malloc(size); - - return strb->data != NULL; - } - else { - struct pipe_resource template; - - /* Free the old surface and texture - */ - pipe_surface_reference( &strb->surface, NULL ); - pipe_resource_reference( &strb->texture, NULL ); - pipe_sampler_view_reference(&strb->sampler_view, NULL); - - /* Setup new texture template. - */ - memset(&template, 0, sizeof(template)); - template.target = st->internal_target; - template.format = format; - template.width0 = width; - template.height0 = height; - template.depth0 = 1; - template.array_size = 1; - template.last_level = 0; - template.nr_samples = rb->NumSamples; - if (util_format_is_depth_or_stencil(format)) { - template.bind = PIPE_BIND_DEPTH_STENCIL; - } - else { - template.bind = (PIPE_BIND_DISPLAY_TARGET | - PIPE_BIND_RENDER_TARGET); - } - - strb->texture = screen->resource_create(screen, &template); - - if (!strb->texture) - return FALSE; - - memset(&surf_tmpl, 0, sizeof(surf_tmpl)); - u_surface_default_template(&surf_tmpl, strb->texture, template.bind); - strb->surface = pipe->create_surface(pipe, - strb->texture, - &surf_tmpl); - if (strb->surface) { - assert(strb->surface->texture); - assert(strb->surface->format); - assert(strb->surface->width == width); - assert(strb->surface->height == height); - } - - return strb->surface != NULL; - } -} - - -/** - * gl_renderbuffer::Delete() - */ -static void -st_renderbuffer_delete(struct gl_renderbuffer *rb) -{ - struct st_renderbuffer *strb = st_renderbuffer(rb); - ASSERT(strb); - pipe_surface_reference(&strb->surface, NULL); - pipe_resource_reference(&strb->texture, NULL); - pipe_sampler_view_reference(&strb->sampler_view, NULL); - free(strb->data); - free(strb); -} - - -/** - * gl_renderbuffer::GetPointer() - */ -static void * -null_get_pointer(struct gl_context * ctx, struct gl_renderbuffer *rb, - GLint x, GLint y) -{ - /* By returning NULL we force all software rendering to go through - * the span routines. - */ -#if 0 - assert(0); /* Should never get called with softpipe */ -#endif - return NULL; -} - - -/** - * Called via ctx->Driver.NewFramebuffer() - */ -static struct gl_framebuffer * -st_new_framebuffer(struct gl_context *ctx, GLuint name) -{ - /* XXX not sure we need to subclass gl_framebuffer for pipe */ - return _mesa_new_framebuffer(ctx, name); -} - - -/** - * Called via ctx->Driver.NewRenderbuffer() - */ -static struct gl_renderbuffer * -st_new_renderbuffer(struct gl_context *ctx, GLuint name) -{ - struct st_renderbuffer *strb = ST_CALLOC_STRUCT(st_renderbuffer); - if (strb) { - _mesa_init_renderbuffer(&strb->Base, name); - strb->Base.Delete = st_renderbuffer_delete; - strb->Base.AllocStorage = st_renderbuffer_alloc_storage; - strb->Base.GetPointer = null_get_pointer; - strb->format = PIPE_FORMAT_NONE; - return &strb->Base; - } - return NULL; -} - - -/** - * Allocate a renderbuffer for a an on-screen window (not a user-created - * renderbuffer). The window system code determines the format. - */ -struct gl_renderbuffer * -st_new_renderbuffer_fb(enum pipe_format format, int samples, boolean sw) -{ - struct st_renderbuffer *strb; - - strb = ST_CALLOC_STRUCT(st_renderbuffer); - if (!strb) { - _mesa_error(NULL, GL_OUT_OF_MEMORY, "creating renderbuffer"); - return NULL; - } - - _mesa_init_renderbuffer(&strb->Base, 0); - strb->Base.ClassID = 0x4242; /* just a unique value */ - strb->Base.NumSamples = samples; - strb->Base.Format = st_pipe_format_to_mesa_format(format); - strb->Base._BaseFormat = _mesa_get_format_base_format(strb->Base.Format); - strb->Base.DataType = st_format_datatype(format); - strb->format = format; - strb->software = sw; - - switch (format) { - case PIPE_FORMAT_R8G8B8A8_UNORM: - case PIPE_FORMAT_B8G8R8A8_UNORM: - case PIPE_FORMAT_A8R8G8B8_UNORM: - case PIPE_FORMAT_R8G8B8X8_UNORM: - case PIPE_FORMAT_B8G8R8X8_UNORM: - case PIPE_FORMAT_X8R8G8B8_UNORM: - case PIPE_FORMAT_B5G5R5A1_UNORM: - case PIPE_FORMAT_B4G4R4A4_UNORM: - case PIPE_FORMAT_B5G6R5_UNORM: - strb->Base.InternalFormat = GL_RGBA; - break; - case PIPE_FORMAT_Z16_UNORM: - strb->Base.InternalFormat = GL_DEPTH_COMPONENT16; - break; - case PIPE_FORMAT_Z32_UNORM: - strb->Base.InternalFormat = GL_DEPTH_COMPONENT32; - break; - case PIPE_FORMAT_Z24_UNORM_S8_USCALED: - case PIPE_FORMAT_S8_USCALED_Z24_UNORM: - case PIPE_FORMAT_Z24X8_UNORM: - case PIPE_FORMAT_X8Z24_UNORM: - strb->Base.InternalFormat = GL_DEPTH24_STENCIL8_EXT; - break; - case PIPE_FORMAT_S8_USCALED: - strb->Base.InternalFormat = GL_STENCIL_INDEX8_EXT; - break; - case PIPE_FORMAT_R16G16B16A16_SNORM: - strb->Base.InternalFormat = GL_RGBA16; - break; - case PIPE_FORMAT_R8_UNORM: - strb->Base.InternalFormat = GL_R8; - break; - case PIPE_FORMAT_R8G8_UNORM: - strb->Base.InternalFormat = GL_RG8; - break; - case PIPE_FORMAT_R16_UNORM: - strb->Base.InternalFormat = GL_R16; - break; - case PIPE_FORMAT_R16G16_UNORM: - strb->Base.InternalFormat = GL_RG16; - break; - default: - _mesa_problem(NULL, - "Unexpected format in st_new_renderbuffer_fb"); - free(strb); - return NULL; - } - - /* st-specific methods */ - strb->Base.Delete = st_renderbuffer_delete; - strb->Base.AllocStorage = st_renderbuffer_alloc_storage; - strb->Base.GetPointer = null_get_pointer; - - /* surface is allocated in st_renderbuffer_alloc_storage() */ - strb->surface = NULL; - - return &strb->Base; -} - - - - -/** - * Called via ctx->Driver.BindFramebufferEXT(). - */ -static void -st_bind_framebuffer(struct gl_context *ctx, GLenum target, - struct gl_framebuffer *fb, struct gl_framebuffer *fbread) -{ - -} - -/** - * Called by ctx->Driver.FramebufferRenderbuffer - */ -static void -st_framebuffer_renderbuffer(struct gl_context *ctx, - struct gl_framebuffer *fb, - GLenum attachment, - struct gl_renderbuffer *rb) -{ - /* XXX no need for derivation? */ - _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb); -} - - -/** - * Called by ctx->Driver.RenderTexture - */ -static void -st_render_texture(struct gl_context *ctx, - struct gl_framebuffer *fb, - struct gl_renderbuffer_attachment *att) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct st_renderbuffer *strb; - struct gl_renderbuffer *rb; - struct pipe_resource *pt = st_get_texobj_resource(att->Texture); - struct st_texture_object *stObj; - const struct gl_texture_image *texImage; - struct pipe_surface surf_tmpl; - - /* When would this fail? Perhaps assert? */ - if (!pt) - return; - - /* get pointer to texture image we're rendeing to */ - texImage = att->Texture->Image[att->CubeMapFace][att->TextureLevel]; - - /* create new renderbuffer which wraps the texture image */ - rb = st_new_renderbuffer(ctx, 0); - if (!rb) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture()"); - return; - } - - _mesa_reference_renderbuffer(&att->Renderbuffer, rb); - assert(rb->RefCount == 1); - rb->AllocStorage = NULL; /* should not get called */ - strb = st_renderbuffer(rb); - - assert(strb->Base.RefCount > 0); - - /* get the texture for the texture object */ - stObj = st_texture_object(att->Texture); - - /* point renderbuffer at texobject */ - strb->rtt = stObj; - strb->rtt_level = att->TextureLevel; - strb->rtt_face = att->CubeMapFace; - strb->rtt_slice = att->Zoffset; - - rb->Width = texImage->Width2; - rb->Height = texImage->Height2; - rb->_BaseFormat = texImage->_BaseFormat; - /*printf("***** render to texture level %d: %d x %d\n", att->TextureLevel, rb->Width, rb->Height);*/ - - /*printf("***** pipe texture %d x %d\n", pt->width0, pt->height0);*/ - - pipe_resource_reference( &strb->texture, pt ); - - pipe_surface_reference(&strb->surface, NULL); - - pipe_sampler_view_reference(&strb->sampler_view, - st_get_texture_sampler_view(stObj, pipe)); - - assert(strb->rtt_level <= strb->texture->last_level); - - /* new surface for rendering into the texture */ - memset(&surf_tmpl, 0, sizeof(surf_tmpl)); - surf_tmpl.format = ctx->Color.sRGBEnabled ? strb->texture->format : util_format_linear(strb->texture->format); - surf_tmpl.usage = PIPE_BIND_RENDER_TARGET; - surf_tmpl.u.tex.level = strb->rtt_level; - surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice; - surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice; - strb->surface = pipe->create_surface(pipe, - strb->texture, - &surf_tmpl); - - strb->format = pt->format; - - strb->Base.Format = st_pipe_format_to_mesa_format(pt->format); - strb->Base.DataType = st_format_datatype(pt->format); - - /* - printf("RENDER TO TEXTURE obj=%p pt=%p surf=%p %d x %d\n", - att->Texture, pt, strb->surface, rb->Width, rb->Height); - */ - - /* Invalidate buffer state so that the pipe's framebuffer state - * gets updated. - * That's where the new renderbuffer (which we just created) gets - * passed to the pipe as a (color/depth) render target. - */ - st_invalidate_state(ctx, _NEW_BUFFERS); -} - - -/** - * Called via ctx->Driver.FinishRenderTexture. - */ -static void -st_finish_render_texture(struct gl_context *ctx, - struct gl_renderbuffer_attachment *att) -{ - struct st_context *st = st_context(ctx); - struct st_renderbuffer *strb = st_renderbuffer(att->Renderbuffer); - - if (!strb) - return; - - st_flush(st, PIPE_FLUSH_RENDER_CACHE, NULL); - - strb->rtt = NULL; - - /* - printf("FINISH RENDER TO TEXTURE surf=%p\n", strb->surface); - */ - - /* restore previous framebuffer state */ - st_invalidate_state(ctx, _NEW_BUFFERS); -} - - -/** - * Validate a renderbuffer attachment for a particular set of bindings. - */ -static GLboolean -st_validate_attachment(struct gl_context *ctx, - struct pipe_screen *screen, - const struct gl_renderbuffer_attachment *att, - unsigned bindings) -{ - const struct st_texture_object *stObj = st_texture_object(att->Texture); - enum pipe_format format; - gl_format texFormat; - - /* Only validate texture attachments for now, since - * st_renderbuffer_alloc_storage makes sure that - * the format is supported. - */ - if (att->Type != GL_TEXTURE) - return GL_TRUE; - - if (!stObj) - return GL_FALSE; - - format = stObj->pt->format; - texFormat = - stObj->base.Image[att->CubeMapFace][att->TextureLevel]->TexFormat; - - /* If the encoding is sRGB and sRGB rendering cannot be enabled, - * check for linear format support instead. - * Later when we create a surface, we change the format to a linear one. */ - if (!ctx->Const.sRGBCapable && - _mesa_get_format_color_encoding(texFormat) == GL_SRGB) { - const gl_format linearFormat = _mesa_get_srgb_format_linear(texFormat); - format = st_mesa_format_to_pipe_format(linearFormat); - } - - return screen->is_format_supported(screen, format, - PIPE_TEXTURE_2D, - stObj->pt->nr_samples, bindings, 0); -} - - -/** - * Check if two renderbuffer attachments name a combined depth/stencil - * renderbuffer. - */ -GLboolean -st_is_depth_stencil_combined(const struct gl_renderbuffer_attachment *depth, - const struct gl_renderbuffer_attachment *stencil) -{ - assert(depth && stencil); - - if (depth->Type == stencil->Type) { - if (depth->Type == GL_RENDERBUFFER_EXT && - depth->Renderbuffer == stencil->Renderbuffer) - return GL_TRUE; - - if (depth->Type == GL_TEXTURE && - depth->Texture == stencil->Texture) - return GL_TRUE; - } - - return GL_FALSE; -} - - -/** - * Check that the framebuffer configuration is valid in terms of what - * the driver can support. - * - * For Gallium we only supports combined Z+stencil, not separate buffers. - */ -static void -st_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb) -{ - struct st_context *st = st_context(ctx); - struct pipe_screen *screen = st->pipe->screen; - const struct gl_renderbuffer_attachment *depth = - &fb->Attachment[BUFFER_DEPTH]; - const struct gl_renderbuffer_attachment *stencil = - &fb->Attachment[BUFFER_STENCIL]; - GLuint i; - - if (depth->Type && stencil->Type && depth->Type != stencil->Type) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - if (depth->Type == GL_RENDERBUFFER_EXT && - stencil->Type == GL_RENDERBUFFER_EXT && - depth->Renderbuffer != stencil->Renderbuffer) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - if (depth->Type == GL_TEXTURE && - stencil->Type == GL_TEXTURE && - depth->Texture != stencil->Texture) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - - if (!st_validate_attachment(ctx, - screen, - depth, - PIPE_BIND_DEPTH_STENCIL)) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - if (!st_validate_attachment(ctx, - screen, - stencil, - PIPE_BIND_DEPTH_STENCIL)) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - for (i = 0; i < ctx->Const.MaxColorAttachments; i++) { - if (!st_validate_attachment(ctx, - screen, - &fb->Attachment[BUFFER_COLOR0 + i], - PIPE_BIND_RENDER_TARGET)) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - } -} - - -/** - * Called via glDrawBuffer. - */ -static void -st_DrawBuffers(struct gl_context *ctx, GLsizei count, const GLenum *buffers) -{ - struct st_context *st = st_context(ctx); - struct gl_framebuffer *fb = ctx->DrawBuffer; - GLuint i; - - (void) count; - (void) buffers; - - /* add the renderbuffers on demand */ - for (i = 0; i < fb->_NumColorDrawBuffers; i++) { - gl_buffer_index idx = fb->_ColorDrawBufferIndexes[i]; - st_manager_add_color_renderbuffer(st, fb, idx); - } -} - - -/** - * Called via glReadBuffer. - */ -static void -st_ReadBuffer(struct gl_context *ctx, GLenum buffer) -{ - struct st_context *st = st_context(ctx); - struct gl_framebuffer *fb = ctx->ReadBuffer; - - (void) buffer; - - /* add the renderbuffer on demand */ - st_manager_add_color_renderbuffer(st, fb, fb->_ColorReadBufferIndex); -} - - -void st_init_fbo_functions(struct dd_function_table *functions) -{ -#if FEATURE_EXT_framebuffer_object - functions->NewFramebuffer = st_new_framebuffer; - functions->NewRenderbuffer = st_new_renderbuffer; - functions->BindFramebuffer = st_bind_framebuffer; - functions->FramebufferRenderbuffer = st_framebuffer_renderbuffer; - functions->RenderTexture = st_render_texture; - functions->FinishRenderTexture = st_finish_render_texture; - functions->ValidateFramebuffer = st_validate_framebuffer; -#endif - /* no longer needed by core Mesa, drivers handle resizes... - functions->ResizeBuffers = st_resize_buffers; - */ - - functions->DrawBuffers = st_DrawBuffers; - functions->ReadBuffer = st_ReadBuffer; -} - -/* XXX unused ? */ -struct pipe_sampler_view * -st_get_renderbuffer_sampler_view(struct st_renderbuffer *rb, - struct pipe_context *pipe) -{ - if (!rb->sampler_view) { - rb->sampler_view = st_create_texture_sampler_view(pipe, rb->texture); - } - - return rb->sampler_view; -} +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +/** + * Framebuffer/renderbuffer functions. + * + * \author Brian Paul + */ + + +#include "main/imports.h" +#include "main/context.h" +#include "main/fbobject.h" +#include "main/framebuffer.h" +#include "main/macros.h" +#include "main/mfeatures.h" +#include "main/renderbuffer.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_screen.h" +#include "st_context.h" +#include "st_cb_fbo.h" +#include "st_cb_flush.h" +#include "st_format.h" +#include "st_texture.h" +#include "st_manager.h" + +#include "util/u_format.h" +#include "util/u_inlines.h" +#include "util/u_surface.h" + + +/** + * gl_renderbuffer::AllocStorage() + * This is called to allocate the original drawing surface, and + * during window resize. + */ +static GLboolean +st_renderbuffer_alloc_storage(struct gl_context * ctx, + struct gl_renderbuffer *rb, + GLenum internalFormat, + GLuint width, GLuint height) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct pipe_screen *screen = st->pipe->screen; + struct st_renderbuffer *strb = st_renderbuffer(rb); + enum pipe_format format; + struct pipe_surface surf_tmpl; + + if (strb->format != PIPE_FORMAT_NONE) + format = strb->format; + else + format = st_choose_renderbuffer_format(screen, internalFormat, + rb->NumSamples); + + if (format == PIPE_FORMAT_NONE) { + return FALSE; + } + + /* init renderbuffer fields */ + strb->Base.Width = width; + strb->Base.Height = height; + strb->Base.Format = st_pipe_format_to_mesa_format(format); + strb->Base._BaseFormat = _mesa_base_fbo_format(ctx, internalFormat); + strb->Base.DataType = st_format_datatype(format); + + strb->defined = GL_FALSE; /* undefined contents now */ + + if (strb->software) { + size_t size; + + free(strb->data); + + assert(strb->format != PIPE_FORMAT_NONE); + + strb->stride = util_format_get_stride(strb->format, width); + size = util_format_get_2d_size(strb->format, strb->stride, height); + + strb->data = malloc(size); + + return strb->data != NULL; + } + else { + struct pipe_resource template; + + /* Free the old surface and texture + */ + pipe_surface_reference( &strb->surface, NULL ); + pipe_resource_reference( &strb->texture, NULL ); + pipe_sampler_view_reference(&strb->sampler_view, NULL); + + /* Setup new texture template. + */ + memset(&template, 0, sizeof(template)); + template.target = st->internal_target; + template.format = format; + template.width0 = width; + template.height0 = height; + template.depth0 = 1; + template.array_size = 1; + template.last_level = 0; + template.nr_samples = rb->NumSamples; + if (util_format_is_depth_or_stencil(format)) { + template.bind = PIPE_BIND_DEPTH_STENCIL; + } + else { + template.bind = (PIPE_BIND_DISPLAY_TARGET | + PIPE_BIND_RENDER_TARGET); + } + + strb->texture = screen->resource_create(screen, &template); + + if (!strb->texture) + return FALSE; + + memset(&surf_tmpl, 0, sizeof(surf_tmpl)); + u_surface_default_template(&surf_tmpl, strb->texture, template.bind); + strb->surface = pipe->create_surface(pipe, + strb->texture, + &surf_tmpl); + if (strb->surface) { + assert(strb->surface->texture); + assert(strb->surface->format); + assert(strb->surface->width == width); + assert(strb->surface->height == height); + } + + return strb->surface != NULL; + } +} + + +/** + * gl_renderbuffer::Delete() + */ +static void +st_renderbuffer_delete(struct gl_renderbuffer *rb) +{ + struct st_renderbuffer *strb = st_renderbuffer(rb); + ASSERT(strb); + pipe_surface_reference(&strb->surface, NULL); + pipe_resource_reference(&strb->texture, NULL); + pipe_sampler_view_reference(&strb->sampler_view, NULL); + free(strb->data); + free(strb); +} + + +/** + * gl_renderbuffer::GetPointer() + */ +static void * +null_get_pointer(struct gl_context * ctx, struct gl_renderbuffer *rb, + GLint x, GLint y) +{ + /* By returning NULL we force all software rendering to go through + * the span routines. + */ +#if 0 + assert(0); /* Should never get called with softpipe */ +#endif + return NULL; +} + + +/** + * Called via ctx->Driver.NewFramebuffer() + */ +static struct gl_framebuffer * +st_new_framebuffer(struct gl_context *ctx, GLuint name) +{ + /* XXX not sure we need to subclass gl_framebuffer for pipe */ + return _mesa_new_framebuffer(ctx, name); +} + + +/** + * Called via ctx->Driver.NewRenderbuffer() + */ +static struct gl_renderbuffer * +st_new_renderbuffer(struct gl_context *ctx, GLuint name) +{ + struct st_renderbuffer *strb = ST_CALLOC_STRUCT(st_renderbuffer); + if (strb) { + _mesa_init_renderbuffer(&strb->Base, name); + strb->Base.Delete = st_renderbuffer_delete; + strb->Base.AllocStorage = st_renderbuffer_alloc_storage; + strb->Base.GetPointer = null_get_pointer; + strb->format = PIPE_FORMAT_NONE; + return &strb->Base; + } + return NULL; +} + + +/** + * Allocate a renderbuffer for a an on-screen window (not a user-created + * renderbuffer). The window system code determines the format. + */ +struct gl_renderbuffer * +st_new_renderbuffer_fb(enum pipe_format format, int samples, boolean sw) +{ + struct st_renderbuffer *strb; + + strb = ST_CALLOC_STRUCT(st_renderbuffer); + if (!strb) { + _mesa_error(NULL, GL_OUT_OF_MEMORY, "creating renderbuffer"); + return NULL; + } + + _mesa_init_renderbuffer(&strb->Base, 0); + strb->Base.ClassID = 0x4242; /* just a unique value */ + strb->Base.NumSamples = samples; + strb->Base.Format = st_pipe_format_to_mesa_format(format); + strb->Base._BaseFormat = _mesa_get_format_base_format(strb->Base.Format); + strb->Base.DataType = st_format_datatype(format); + strb->format = format; + strb->software = sw; + + switch (format) { + case PIPE_FORMAT_R8G8B8A8_UNORM: + case PIPE_FORMAT_B8G8R8A8_UNORM: + case PIPE_FORMAT_A8R8G8B8_UNORM: + case PIPE_FORMAT_R8G8B8X8_UNORM: + case PIPE_FORMAT_B8G8R8X8_UNORM: + case PIPE_FORMAT_X8R8G8B8_UNORM: + case PIPE_FORMAT_B5G5R5A1_UNORM: + case PIPE_FORMAT_B4G4R4A4_UNORM: + case PIPE_FORMAT_B5G6R5_UNORM: + strb->Base.InternalFormat = GL_RGBA; + break; + case PIPE_FORMAT_Z16_UNORM: + strb->Base.InternalFormat = GL_DEPTH_COMPONENT16; + break; + case PIPE_FORMAT_Z32_UNORM: + strb->Base.InternalFormat = GL_DEPTH_COMPONENT32; + break; + case PIPE_FORMAT_Z24_UNORM_S8_USCALED: + case PIPE_FORMAT_S8_USCALED_Z24_UNORM: + case PIPE_FORMAT_Z24X8_UNORM: + case PIPE_FORMAT_X8Z24_UNORM: + strb->Base.InternalFormat = GL_DEPTH24_STENCIL8_EXT; + break; + case PIPE_FORMAT_S8_USCALED: + strb->Base.InternalFormat = GL_STENCIL_INDEX8_EXT; + break; + case PIPE_FORMAT_R16G16B16A16_SNORM: + strb->Base.InternalFormat = GL_RGBA16; + break; + case PIPE_FORMAT_R8_UNORM: + strb->Base.InternalFormat = GL_R8; + break; + case PIPE_FORMAT_R8G8_UNORM: + strb->Base.InternalFormat = GL_RG8; + break; + case PIPE_FORMAT_R16_UNORM: + strb->Base.InternalFormat = GL_R16; + break; + case PIPE_FORMAT_R16G16_UNORM: + strb->Base.InternalFormat = GL_RG16; + break; + default: + _mesa_problem(NULL, + "Unexpected format in st_new_renderbuffer_fb"); + free(strb); + return NULL; + } + + /* st-specific methods */ + strb->Base.Delete = st_renderbuffer_delete; + strb->Base.AllocStorage = st_renderbuffer_alloc_storage; + strb->Base.GetPointer = null_get_pointer; + + /* surface is allocated in st_renderbuffer_alloc_storage() */ + strb->surface = NULL; + + return &strb->Base; +} + + + + +/** + * Called via ctx->Driver.BindFramebufferEXT(). + */ +static void +st_bind_framebuffer(struct gl_context *ctx, GLenum target, + struct gl_framebuffer *fb, struct gl_framebuffer *fbread) +{ + +} + +/** + * Called by ctx->Driver.FramebufferRenderbuffer + */ +static void +st_framebuffer_renderbuffer(struct gl_context *ctx, + struct gl_framebuffer *fb, + GLenum attachment, + struct gl_renderbuffer *rb) +{ + /* XXX no need for derivation? */ + _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb); +} + + +/** + * Called by ctx->Driver.RenderTexture + */ +static void +st_render_texture(struct gl_context *ctx, + struct gl_framebuffer *fb, + struct gl_renderbuffer_attachment *att) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct st_renderbuffer *strb; + struct gl_renderbuffer *rb; + struct pipe_resource *pt = st_get_texobj_resource(att->Texture); + struct st_texture_object *stObj; + const struct gl_texture_image *texImage; + struct pipe_surface surf_tmpl; + + /* When would this fail? Perhaps assert? */ + if (!pt) + return; + + /* get pointer to texture image we're rendeing to */ + texImage = att->Texture->Image[att->CubeMapFace][att->TextureLevel]; + + /* create new renderbuffer which wraps the texture image */ + rb = st_new_renderbuffer(ctx, 0); + if (!rb) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture()"); + return; + } + + _mesa_reference_renderbuffer(&att->Renderbuffer, rb); + assert(rb->RefCount == 1); + rb->AllocStorage = NULL; /* should not get called */ + strb = st_renderbuffer(rb); + + assert(strb->Base.RefCount > 0); + + /* get the texture for the texture object */ + stObj = st_texture_object(att->Texture); + + /* point renderbuffer at texobject */ + strb->rtt = stObj; + strb->rtt_level = att->TextureLevel; + strb->rtt_face = att->CubeMapFace; + strb->rtt_slice = att->Zoffset; + + rb->Width = texImage->Width2; + rb->Height = texImage->Height2; + rb->_BaseFormat = texImage->_BaseFormat; + /*printf("***** render to texture level %d: %d x %d\n", att->TextureLevel, rb->Width, rb->Height);*/ + + /*printf("***** pipe texture %d x %d\n", pt->width0, pt->height0);*/ + + pipe_resource_reference( &strb->texture, pt ); + + pipe_surface_reference(&strb->surface, NULL); + + pipe_sampler_view_reference(&strb->sampler_view, + st_get_texture_sampler_view(stObj, pipe)); + + assert(strb->rtt_level <= strb->texture->last_level); + + /* new surface for rendering into the texture */ + memset(&surf_tmpl, 0, sizeof(surf_tmpl)); + surf_tmpl.format = ctx->Color.sRGBEnabled ? strb->texture->format : util_format_linear(strb->texture->format); + surf_tmpl.usage = PIPE_BIND_RENDER_TARGET; + surf_tmpl.u.tex.level = strb->rtt_level; + surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice; + surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice; + strb->surface = pipe->create_surface(pipe, + strb->texture, + &surf_tmpl); + + strb->format = pt->format; + + strb->Base.Format = st_pipe_format_to_mesa_format(pt->format); + strb->Base.DataType = st_format_datatype(pt->format); + + /* + printf("RENDER TO TEXTURE obj=%p pt=%p surf=%p %d x %d\n", + att->Texture, pt, strb->surface, rb->Width, rb->Height); + */ + + /* Invalidate buffer state so that the pipe's framebuffer state + * gets updated. + * That's where the new renderbuffer (which we just created) gets + * passed to the pipe as a (color/depth) render target. + */ + st_invalidate_state(ctx, _NEW_BUFFERS); +} + + +/** + * Called via ctx->Driver.FinishRenderTexture. + */ +static void +st_finish_render_texture(struct gl_context *ctx, + struct gl_renderbuffer_attachment *att) +{ + struct st_renderbuffer *strb = st_renderbuffer(att->Renderbuffer); + + if (!strb) + return; + + strb->rtt = NULL; + + /* + printf("FINISH RENDER TO TEXTURE surf=%p\n", strb->surface); + */ + + /* restore previous framebuffer state */ + st_invalidate_state(ctx, _NEW_BUFFERS); +} + + +/** + * Validate a renderbuffer attachment for a particular set of bindings. + */ +static GLboolean +st_validate_attachment(struct gl_context *ctx, + struct pipe_screen *screen, + const struct gl_renderbuffer_attachment *att, + unsigned bindings) +{ + const struct st_texture_object *stObj = st_texture_object(att->Texture); + enum pipe_format format; + gl_format texFormat; + + /* Only validate texture attachments for now, since + * st_renderbuffer_alloc_storage makes sure that + * the format is supported. + */ + if (att->Type != GL_TEXTURE) + return GL_TRUE; + + if (!stObj) + return GL_FALSE; + + format = stObj->pt->format; + texFormat = + stObj->base.Image[att->CubeMapFace][att->TextureLevel]->TexFormat; + + /* If the encoding is sRGB and sRGB rendering cannot be enabled, + * check for linear format support instead. + * Later when we create a surface, we change the format to a linear one. */ + if (!ctx->Const.sRGBCapable && + _mesa_get_format_color_encoding(texFormat) == GL_SRGB) { + const gl_format linearFormat = _mesa_get_srgb_format_linear(texFormat); + format = st_mesa_format_to_pipe_format(linearFormat); + } + + return screen->is_format_supported(screen, format, + PIPE_TEXTURE_2D, + stObj->pt->nr_samples, bindings); +} + + +/** + * Check if two renderbuffer attachments name a combined depth/stencil + * renderbuffer. + */ +GLboolean +st_is_depth_stencil_combined(const struct gl_renderbuffer_attachment *depth, + const struct gl_renderbuffer_attachment *stencil) +{ + assert(depth && stencil); + + if (depth->Type == stencil->Type) { + if (depth->Type == GL_RENDERBUFFER_EXT && + depth->Renderbuffer == stencil->Renderbuffer) + return GL_TRUE; + + if (depth->Type == GL_TEXTURE && + depth->Texture == stencil->Texture) + return GL_TRUE; + } + + return GL_FALSE; +} + + +/** + * Check that the framebuffer configuration is valid in terms of what + * the driver can support. + * + * For Gallium we only supports combined Z+stencil, not separate buffers. + */ +static void +st_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb) +{ + struct st_context *st = st_context(ctx); + struct pipe_screen *screen = st->pipe->screen; + const struct gl_renderbuffer_attachment *depth = + &fb->Attachment[BUFFER_DEPTH]; + const struct gl_renderbuffer_attachment *stencil = + &fb->Attachment[BUFFER_STENCIL]; + GLuint i; + + if (depth->Type && stencil->Type && depth->Type != stencil->Type) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + if (depth->Type == GL_RENDERBUFFER_EXT && + stencil->Type == GL_RENDERBUFFER_EXT && + depth->Renderbuffer != stencil->Renderbuffer) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + if (depth->Type == GL_TEXTURE && + stencil->Type == GL_TEXTURE && + depth->Texture != stencil->Texture) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + + if (!st_validate_attachment(ctx, + screen, + depth, + PIPE_BIND_DEPTH_STENCIL)) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + if (!st_validate_attachment(ctx, + screen, + stencil, + PIPE_BIND_DEPTH_STENCIL)) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + for (i = 0; i < ctx->Const.MaxColorAttachments; i++) { + if (!st_validate_attachment(ctx, + screen, + &fb->Attachment[BUFFER_COLOR0 + i], + PIPE_BIND_RENDER_TARGET)) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + } +} + + +/** + * Called via glDrawBuffer. + */ +static void +st_DrawBuffers(struct gl_context *ctx, GLsizei count, const GLenum *buffers) +{ + struct st_context *st = st_context(ctx); + struct gl_framebuffer *fb = ctx->DrawBuffer; + GLuint i; + + (void) count; + (void) buffers; + + /* add the renderbuffers on demand */ + for (i = 0; i < fb->_NumColorDrawBuffers; i++) { + gl_buffer_index idx = fb->_ColorDrawBufferIndexes[i]; + st_manager_add_color_renderbuffer(st, fb, idx); + } +} + + +/** + * Called via glReadBuffer. + */ +static void +st_ReadBuffer(struct gl_context *ctx, GLenum buffer) +{ + struct st_context *st = st_context(ctx); + struct gl_framebuffer *fb = ctx->ReadBuffer; + + (void) buffer; + + /* add the renderbuffer on demand */ + st_manager_add_color_renderbuffer(st, fb, fb->_ColorReadBufferIndex); +} + + +void st_init_fbo_functions(struct dd_function_table *functions) +{ +#if FEATURE_EXT_framebuffer_object + functions->NewFramebuffer = st_new_framebuffer; + functions->NewRenderbuffer = st_new_renderbuffer; + functions->BindFramebuffer = st_bind_framebuffer; + functions->FramebufferRenderbuffer = st_framebuffer_renderbuffer; + functions->RenderTexture = st_render_texture; + functions->FinishRenderTexture = st_finish_render_texture; + functions->ValidateFramebuffer = st_validate_framebuffer; +#endif + /* no longer needed by core Mesa, drivers handle resizes... + functions->ResizeBuffers = st_resize_buffers; + */ + + functions->DrawBuffers = st_DrawBuffers; + functions->ReadBuffer = st_ReadBuffer; +} + +/* XXX unused ? */ +struct pipe_sampler_view * +st_get_renderbuffer_sampler_view(struct st_renderbuffer *rb, + struct pipe_context *pipe) +{ + if (!rb->sampler_view) { + rb->sampler_view = st_create_texture_sampler_view(pipe, rb->texture); + } + + return rb->sampler_view; +} diff --git a/mesalib/src/mesa/state_tracker/st_cb_flush.c b/mesalib/src/mesa/state_tracker/st_cb_flush.c index 35ab00f6d..c029fad48 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_flush.c +++ b/mesalib/src/mesa/state_tracker/st_cb_flush.c @@ -1,165 +1,165 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - - /* - * Authors: - * Keith Whitwell - * Brian Paul - */ - -#include "main/glheader.h" -#include "main/macros.h" -#include "main/context.h" -#include "st_context.h" -#include "st_cb_bitmap.h" -#include "st_cb_flush.h" -#include "st_cb_clear.h" -#include "st_cb_fbo.h" -#include "st_manager.h" -#include "pipe/p_context.h" -#include "pipe/p_defines.h" -#include "pipe/p_screen.h" -#include "util/u_gen_mipmap.h" -#include "util/u_blit.h" - - -/** Check if we have a front color buffer and if it's been drawn to. */ -static INLINE GLboolean -is_front_buffer_dirty(struct st_context *st) -{ - struct gl_framebuffer *fb = st->ctx->DrawBuffer; - struct st_renderbuffer *strb - = st_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer); - return strb && strb->defined; -} - - -/** - * Tell the screen to display the front color buffer on-screen. - */ -static void -display_front_buffer(struct st_context *st) -{ - struct gl_framebuffer *fb = st->ctx->DrawBuffer; - struct st_renderbuffer *strb - = st_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer); - - if (strb) { - /* Hook for copying "fake" frontbuffer if necessary: - */ - st_manager_flush_frontbuffer(st); - } -} - - -void st_flush( struct st_context *st, uint pipeFlushFlags, - struct pipe_fence_handle **fence ) -{ - FLUSH_CURRENT(st->ctx, 0); - - /* Release any vertex buffers that might potentially be accessed in - * successive frames: - */ - st_flush_bitmap(st); - st_flush_clear(st); - util_blit_flush(st->blit); - util_gen_mipmap_flush(st->gen_mipmap); - - st->pipe->flush( st->pipe, pipeFlushFlags, fence ); -} - - -/** - * Flush, and wait for completion. - */ -void st_finish( struct st_context *st ) -{ - struct pipe_fence_handle *fence = NULL; - - st_flush(st, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, &fence); - - if(fence) { - st->pipe->screen->fence_finish(st->pipe->screen, fence, 0, - PIPE_TIMEOUT_INFINITE); - st->pipe->screen->fence_reference(st->pipe->screen, &fence, NULL); - } -} - - - -/** - * Called via ctx->Driver.Flush() - */ -static void st_glFlush(struct gl_context *ctx) -{ - struct st_context *st = st_context(ctx); - - /* Don't call st_finish() here. It is not the state tracker's - * responsibilty to inject sleeps in the hope of avoiding buffer - * synchronization issues. Calling finish() here will just hide - * problems that need to be fixed elsewhere. - */ - st_flush(st, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL); - - if (is_front_buffer_dirty(st)) { - display_front_buffer(st); - } -} - - -/** - * Called via ctx->Driver.Finish() - */ -static void st_glFinish(struct gl_context *ctx) -{ - struct st_context *st = st_context(ctx); - - st_finish(st); - - if (is_front_buffer_dirty(st)) { - display_front_buffer(st); - } -} - - -void st_init_flush_functions(struct dd_function_table *functions) -{ - functions->Flush = st_glFlush; - functions->Finish = st_glFinish; - - /* Windows opengl32.dll calls glFinish prior to every swapbuffers. - * This is unnecessary and degrades performance. Luckily we have some - * scope to work around this, as the externally-visible behaviour of - * Finish() is identical to Flush() in all cases - no differences in - * rendering or ReadPixels are visible if we opt not to wait here. - * - * Only set this up on windows to avoid suprise elsewhere. - */ -#ifdef PIPE_OS_WINDOWS - functions->Finish = st_glFlush; -#endif -} +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell + * Brian Paul + */ + +#include "main/glheader.h" +#include "main/macros.h" +#include "main/context.h" +#include "st_context.h" +#include "st_cb_bitmap.h" +#include "st_cb_flush.h" +#include "st_cb_clear.h" +#include "st_cb_fbo.h" +#include "st_manager.h" +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_screen.h" +#include "util/u_gen_mipmap.h" +#include "util/u_blit.h" + + +/** Check if we have a front color buffer and if it's been drawn to. */ +static INLINE GLboolean +is_front_buffer_dirty(struct st_context *st) +{ + struct gl_framebuffer *fb = st->ctx->DrawBuffer; + struct st_renderbuffer *strb + = st_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer); + return strb && strb->defined; +} + + +/** + * Tell the screen to display the front color buffer on-screen. + */ +static void +display_front_buffer(struct st_context *st) +{ + struct gl_framebuffer *fb = st->ctx->DrawBuffer; + struct st_renderbuffer *strb + = st_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer); + + if (strb) { + /* Hook for copying "fake" frontbuffer if necessary: + */ + st_manager_flush_frontbuffer(st); + } +} + + +void st_flush( struct st_context *st, + struct pipe_fence_handle **fence ) +{ + FLUSH_CURRENT(st->ctx, 0); + + /* Release any vertex buffers that might potentially be accessed in + * successive frames: + */ + st_flush_bitmap(st); + st_flush_clear(st); + util_blit_flush(st->blit); + util_gen_mipmap_flush(st->gen_mipmap); + + st->pipe->flush( st->pipe, fence ); +} + + +/** + * Flush, and wait for completion. + */ +void st_finish( struct st_context *st ) +{ + struct pipe_fence_handle *fence = NULL; + + st_flush(st, &fence); + + if(fence) { + st->pipe->screen->fence_finish(st->pipe->screen, fence, + PIPE_TIMEOUT_INFINITE); + st->pipe->screen->fence_reference(st->pipe->screen, &fence, NULL); + } +} + + + +/** + * Called via ctx->Driver.Flush() + */ +static void st_glFlush(struct gl_context *ctx) +{ + struct st_context *st = st_context(ctx); + + /* Don't call st_finish() here. It is not the state tracker's + * responsibilty to inject sleeps in the hope of avoiding buffer + * synchronization issues. Calling finish() here will just hide + * problems that need to be fixed elsewhere. + */ + st_flush(st, NULL); + + if (is_front_buffer_dirty(st)) { + display_front_buffer(st); + } +} + + +/** + * Called via ctx->Driver.Finish() + */ +static void st_glFinish(struct gl_context *ctx) +{ + struct st_context *st = st_context(ctx); + + st_finish(st); + + if (is_front_buffer_dirty(st)) { + display_front_buffer(st); + } +} + + +void st_init_flush_functions(struct dd_function_table *functions) +{ + functions->Flush = st_glFlush; + functions->Finish = st_glFinish; + + /* Windows opengl32.dll calls glFinish prior to every swapbuffers. + * This is unnecessary and degrades performance. Luckily we have some + * scope to work around this, as the externally-visible behaviour of + * Finish() is identical to Flush() in all cases - no differences in + * rendering or ReadPixels are visible if we opt not to wait here. + * + * Only set this up on windows to avoid suprise elsewhere. + */ +#ifdef PIPE_OS_WINDOWS + functions->Finish = st_glFlush; +#endif +} diff --git a/mesalib/src/mesa/state_tracker/st_cb_flush.h b/mesalib/src/mesa/state_tracker/st_cb_flush.h index 234713675..1fd0c56d7 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_flush.h +++ b/mesalib/src/mesa/state_tracker/st_cb_flush.h @@ -40,7 +40,7 @@ extern void st_init_flush_functions(struct dd_function_table *functions); extern void -st_flush(struct st_context *st, uint pipeFlushFlags, +st_flush(struct st_context *st, struct pipe_fence_handle **fence); extern void diff --git a/mesalib/src/mesa/state_tracker/st_cb_syncobj.c b/mesalib/src/mesa/state_tracker/st_cb_syncobj.c index 85aad08cc..7e243561a 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_syncobj.c +++ b/mesalib/src/mesa/state_tracker/st_cb_syncobj.c @@ -1,122 +1,122 @@ -/************************************************************************** - * - * Copyright 2011 Marek Olšák - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - - /* - * Authors: - * Marek Olšák - */ - -#include "main/glheader.h" -#include "main/macros.h" -#include "pipe/p_context.h" -#include "pipe/p_screen.h" -#include "st_context.h" -#include "st_cb_syncobj.h" - -struct st_sync_object { - struct gl_sync_object b; - - struct pipe_fence_handle *fence; -}; - - -static struct gl_sync_object * st_new_sync_object(struct gl_context *ctx, - GLenum type) -{ - if (type == GL_SYNC_FENCE) - return (struct gl_sync_object*)CALLOC_STRUCT(st_sync_object); - else - return NULL; -} - -static void st_delete_sync_object(struct gl_context *ctx, - struct gl_sync_object *obj) -{ - struct pipe_screen *screen = st_context(ctx)->pipe->screen; - struct st_sync_object *so = (struct st_sync_object*)obj; - - screen->fence_reference(screen, &so->fence, NULL); - FREE(so); -} - -static void st_fence_sync(struct gl_context *ctx, struct gl_sync_object *obj, - GLenum condition, GLbitfield flags) -{ - struct pipe_context *pipe = st_context(ctx)->pipe; - struct st_sync_object *so = (struct st_sync_object*)obj; - - assert(condition == GL_SYNC_GPU_COMMANDS_COMPLETE && flags == 0); - assert(so->fence == NULL); - - pipe->flush(pipe, 0, &so->fence); -} - -static void st_check_sync(struct gl_context *ctx, struct gl_sync_object *obj) -{ - struct pipe_screen *screen = st_context(ctx)->pipe->screen; - struct st_sync_object *so = (struct st_sync_object*)obj; - - if (so->fence && screen->fence_signalled(screen, so->fence, 0) == 0) { - screen->fence_reference(screen, &so->fence, NULL); - so->b.StatusFlag = GL_TRUE; - } -} - -static void st_client_wait_sync(struct gl_context *ctx, - struct gl_sync_object *obj, - GLbitfield flags, GLuint64 timeout) -{ - struct pipe_screen *screen = st_context(ctx)->pipe->screen; - struct st_sync_object *so = (struct st_sync_object*)obj; - - /* We don't care about GL_SYNC_FLUSH_COMMANDS_BIT, because flush is - * already called when creating a fence. */ - - if (so->fence && - screen->fence_finish(screen, so->fence, 0, timeout) == 0) { - screen->fence_reference(screen, &so->fence, NULL); - so->b.StatusFlag = GL_TRUE; - } -} - -static void st_server_wait_sync(struct gl_context *ctx, - struct gl_sync_object *obj, - GLbitfield flags, GLuint64 timeout) -{ - /* NO-OP. - * Neither Gallium nor DRM interfaces support blocking on the GPU. */ -} - -void st_init_syncobj_functions(struct dd_function_table *functions) -{ - functions->NewSyncObject = st_new_sync_object; - functions->FenceSync = st_fence_sync; - functions->DeleteSyncObject = st_delete_sync_object; - functions->CheckSync = st_check_sync; - functions->ClientWaitSync = st_client_wait_sync; - functions->ServerWaitSync = st_server_wait_sync; -} +/************************************************************************** + * + * Copyright 2011 Marek Olšák + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Marek Olšák + */ + +#include "main/glheader.h" +#include "main/macros.h" +#include "pipe/p_context.h" +#include "pipe/p_screen.h" +#include "st_context.h" +#include "st_cb_syncobj.h" + +struct st_sync_object { + struct gl_sync_object b; + + struct pipe_fence_handle *fence; +}; + + +static struct gl_sync_object * st_new_sync_object(struct gl_context *ctx, + GLenum type) +{ + if (type == GL_SYNC_FENCE) + return (struct gl_sync_object*)CALLOC_STRUCT(st_sync_object); + else + return NULL; +} + +static void st_delete_sync_object(struct gl_context *ctx, + struct gl_sync_object *obj) +{ + struct pipe_screen *screen = st_context(ctx)->pipe->screen; + struct st_sync_object *so = (struct st_sync_object*)obj; + + screen->fence_reference(screen, &so->fence, NULL); + FREE(so); +} + +static void st_fence_sync(struct gl_context *ctx, struct gl_sync_object *obj, + GLenum condition, GLbitfield flags) +{ + struct pipe_context *pipe = st_context(ctx)->pipe; + struct st_sync_object *so = (struct st_sync_object*)obj; + + assert(condition == GL_SYNC_GPU_COMMANDS_COMPLETE && flags == 0); + assert(so->fence == NULL); + + pipe->flush(pipe, &so->fence); +} + +static void st_check_sync(struct gl_context *ctx, struct gl_sync_object *obj) +{ + struct pipe_screen *screen = st_context(ctx)->pipe->screen; + struct st_sync_object *so = (struct st_sync_object*)obj; + + if (so->fence && screen->fence_signalled(screen, so->fence)) { + screen->fence_reference(screen, &so->fence, NULL); + so->b.StatusFlag = GL_TRUE; + } +} + +static void st_client_wait_sync(struct gl_context *ctx, + struct gl_sync_object *obj, + GLbitfield flags, GLuint64 timeout) +{ + struct pipe_screen *screen = st_context(ctx)->pipe->screen; + struct st_sync_object *so = (struct st_sync_object*)obj; + + /* We don't care about GL_SYNC_FLUSH_COMMANDS_BIT, because flush is + * already called when creating a fence. */ + + if (so->fence && + screen->fence_finish(screen, so->fence, timeout)) { + screen->fence_reference(screen, &so->fence, NULL); + so->b.StatusFlag = GL_TRUE; + } +} + +static void st_server_wait_sync(struct gl_context *ctx, + struct gl_sync_object *obj, + GLbitfield flags, GLuint64 timeout) +{ + /* NO-OP. + * Neither Gallium nor DRM interfaces support blocking on the GPU. */ +} + +void st_init_syncobj_functions(struct dd_function_table *functions) +{ + functions->NewSyncObject = st_new_sync_object; + functions->FenceSync = st_fence_sync; + functions->DeleteSyncObject = st_delete_sync_object; + functions->CheckSync = st_check_sync; + functions->ClientWaitSync = st_client_wait_sync; + functions->ServerWaitSync = st_server_wait_sync; +} diff --git a/mesalib/src/mesa/state_tracker/st_cb_texture.c b/mesalib/src/mesa/state_tracker/st_cb_texture.c index 17dab2f1a..8bdb3c801 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_texture.c +++ b/mesalib/src/mesa/state_tracker/st_cb_texture.c @@ -217,7 +217,6 @@ default_bindings(struct st_context *st, enum pipe_format format) { struct pipe_screen *screen = st->pipe->screen; const unsigned target = PIPE_TEXTURE_2D; - const unsigned geom = 0x0; unsigned bindings; if (util_format_is_depth_or_stencil(format)) @@ -225,13 +224,13 @@ default_bindings(struct st_context *st, enum pipe_format format) else bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET; - if (screen->is_format_supported(screen, format, target, 0, bindings, geom)) + if (screen->is_format_supported(screen, format, target, 0, bindings)) return bindings; else { /* Try non-sRGB. */ format = util_format_linear(format); - if (screen->is_format_supported(screen, format, target, 0, bindings, geom)) + if (screen->is_format_supported(screen, format, target, 0, bindings)) return bindings; else return PIPE_BIND_SAMPLER_VIEW; @@ -1523,12 +1522,10 @@ st_copy_texsubimage(struct gl_context *ctx, texBaseFormat != GL_DEPTH_STENCIL && screen->is_format_supported(screen, src_format, PIPE_TEXTURE_2D, sample_count, - PIPE_BIND_SAMPLER_VIEW, - 0) && + PIPE_BIND_SAMPLER_VIEW) && screen->is_format_supported(screen, dest_format, PIPE_TEXTURE_2D, 0, - PIPE_BIND_RENDER_TARGET, - 0)) { + PIPE_BIND_RENDER_TARGET)) { /* draw textured quad to do the copy */ GLint srcY0, srcY1; struct pipe_surface surf_tmpl; diff --git a/mesalib/src/mesa/state_tracker/st_extensions.c b/mesalib/src/mesa/state_tracker/st_extensions.c index aaa1658f4..5fe516c19 100644 --- a/mesalib/src/mesa/state_tracker/st_extensions.c +++ b/mesalib/src/mesa/state_tracker/st_extensions.c @@ -1,525 +1,525 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * Copyright (c) 2008 VMware, Inc. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - -#include "main/imports.h" -#include "main/context.h" -#include "main/macros.h" -#include "main/mfeatures.h" - -#include "pipe/p_context.h" -#include "pipe/p_defines.h" -#include "pipe/p_screen.h" - -#include "st_context.h" -#include "st_extensions.h" - - -static int _min(int a, int b) -{ - return (a < b) ? a : b; -} - -static float _maxf(float a, float b) -{ - return (a > b) ? a : b; -} - -static int _clamp(int a, int min, int max) -{ - if (a < min) - return min; - else if (a > max) - return max; - else - return a; -} - - -/** - * Query driver to get implementation limits. - * Note that we have to limit/clamp against Mesa's internal limits too. - */ -void st_init_limits(struct st_context *st) -{ - struct pipe_screen *screen = st->pipe->screen; - struct gl_constants *c = &st->ctx->Const; - gl_shader_type sh; - - c->MaxTextureLevels - = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS), - MAX_TEXTURE_LEVELS); - - c->Max3DTextureLevels - = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS), - MAX_3D_TEXTURE_LEVELS); - - c->MaxCubeTextureLevels - = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS), - MAX_CUBE_TEXTURE_LEVELS); - - c->MaxTextureRectSize - = _min(1 << (c->MaxTextureLevels - 1), MAX_TEXTURE_RECT_SIZE); - - c->MaxTextureImageUnits - = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS), - MAX_TEXTURE_IMAGE_UNITS); - - c->MaxVertexTextureImageUnits - = _min(screen->get_param(screen, PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS), - MAX_VERTEX_TEXTURE_IMAGE_UNITS); - - c->MaxCombinedTextureImageUnits - = _min(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SAMPLERS), - MAX_COMBINED_TEXTURE_IMAGE_UNITS); - - c->MaxTextureCoordUnits - = _min(c->MaxTextureImageUnits, MAX_TEXTURE_COORD_UNITS); - - c->MaxTextureUnits = _min(c->MaxTextureImageUnits, c->MaxTextureCoordUnits); - - c->MaxDrawBuffers - = _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS), - 1, MAX_DRAW_BUFFERS); - - c->MaxLineWidth - = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH)); - c->MaxLineWidthAA - = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH_AA)); - - c->MaxPointSize - = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH)); - c->MaxPointSizeAA - = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH_AA)); - /* called after _mesa_create_context/_mesa_init_point, fix default user - * settable max point size up - */ - st->ctx->Point.MaxSize = MAX2(c->MaxPointSize, c->MaxPointSizeAA); - /* these are not queryable. Note that GL basically mandates a 1.0 minimum - * for non-aa sizes, but we can go down to 0.0 for aa points. - */ - c->MinPointSize = 1.0f; - c->MinPointSizeAA = 0.0f; - - c->MaxTextureMaxAnisotropy - = _maxf(2.0f, screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_ANISOTROPY)); - - c->MaxTextureLodBias - = screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_LOD_BIAS); - - c->MaxDrawBuffers - = CLAMP(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS), - 1, MAX_DRAW_BUFFERS); - - /* Quads always follow GL provoking rules. */ - c->QuadsFollowProvokingVertexConvention = GL_FALSE; - - for (sh = 0; sh < MESA_SHADER_TYPES; ++sh) { - struct gl_shader_compiler_options *options = - &st->ctx->ShaderCompilerOptions[sh]; - struct gl_program_constants *pc; - - switch (sh) { - case PIPE_SHADER_FRAGMENT: - pc = &c->FragmentProgram; - break; - case PIPE_SHADER_VERTEX: - pc = &c->VertexProgram; - break; - case PIPE_SHADER_GEOMETRY: - pc = &c->GeometryProgram; - break; - default: - assert(0); - continue; - } - - pc->MaxNativeInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS); - pc->MaxNativeAluInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS); - pc->MaxNativeTexInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS); - pc->MaxNativeTexIndirections = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS); - pc->MaxNativeAttribs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS); - pc->MaxNativeTemps = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS); - pc->MaxNativeAddressRegs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ADDRS); - pc->MaxNativeParameters = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONSTS); - pc->MaxUniformComponents = 4 * MIN2(pc->MaxNativeParameters, MAX_UNIFORMS); - - options->EmitNoNoise = TRUE; - - /* TODO: make these more fine-grained if anyone needs it */ - options->EmitNoIfs = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH); - options->EmitNoLoops = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH); - options->EmitNoFunctions = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES); - options->EmitNoMainReturn = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES); - - options->EmitNoCont = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED); - - options->EmitNoIndirectInput = !screen->get_shader_param(screen, sh, - PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR); - options->EmitNoIndirectOutput = !screen->get_shader_param(screen, sh, - PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR); - options->EmitNoIndirectTemp = !screen->get_shader_param(screen, sh, - PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR); - options->EmitNoIndirectUniform = !screen->get_shader_param(screen, sh, - PIPE_SHADER_CAP_INDIRECT_CONST_ADDR); - - if(options->EmitNoLoops) - options->MaxUnrollIterations = MIN2(screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS), 65536); - } - - /* PIPE_CAP_MAX_FS_INPUTS specifies the number of COLORn + GENERICn inputs - * and is set in MaxNativeAttribs. It's always 2 colors + N generic - * attributes. The GLSL compiler never uses COLORn for varyings, so we - * subtract the 2 colors to get the maximum number of varyings (generic - * attributes) supported by a driver. */ - c->MaxVarying = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, PIPE_SHADER_CAP_MAX_INPUTS) - 2; - c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING); - - /* XXX we'll need a better query here someday */ - if (screen->get_param(screen, PIPE_CAP_GLSL)) { - c->GLSLVersion = 120; - } -} - - -/** - * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine - * which GL extensions are supported. - * Quite a few extensions are always supported because they are standard - * features or can be built on top of other gallium features. - * Some fine tuning may still be needed. - */ -void st_init_extensions(struct st_context *st) -{ - struct pipe_screen *screen = st->pipe->screen; - struct gl_context *ctx = st->ctx; - - /* - * Extensions that are supported by all Gallium drivers: - */ - ctx->Extensions.ARB_copy_buffer = GL_TRUE; - ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE; - ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE; - ctx->Extensions.ARB_fragment_program = GL_TRUE; - ctx->Extensions.ARB_half_float_pixel = GL_TRUE; - ctx->Extensions.ARB_map_buffer_range = GL_TRUE; - ctx->Extensions.ARB_multisample = GL_TRUE; - ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; /* XXX temp */ - ctx->Extensions.ARB_texture_compression = GL_TRUE; - ctx->Extensions.ARB_texture_cube_map = GL_TRUE; - ctx->Extensions.ARB_texture_env_combine = GL_TRUE; - ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE; - ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE; - ctx->Extensions.ARB_vertex_array_object = GL_TRUE; - ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE; - ctx->Extensions.ARB_vertex_program = GL_TRUE; - ctx->Extensions.ARB_window_pos = GL_TRUE; - - ctx->Extensions.EXT_blend_color = GL_TRUE; - ctx->Extensions.EXT_blend_func_separate = GL_TRUE; - ctx->Extensions.EXT_blend_logic_op = GL_TRUE; - ctx->Extensions.EXT_blend_minmax = GL_TRUE; - ctx->Extensions.EXT_blend_subtract = GL_TRUE; - ctx->Extensions.EXT_framebuffer_blit = GL_TRUE; - ctx->Extensions.EXT_framebuffer_object = GL_TRUE; - ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE; - ctx->Extensions.EXT_fog_coord = GL_TRUE; - ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE; - ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE; - ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE; - ctx->Extensions.EXT_point_parameters = GL_TRUE; - ctx->Extensions.EXT_provoking_vertex = GL_TRUE; - ctx->Extensions.EXT_secondary_color = GL_TRUE; - ctx->Extensions.EXT_stencil_wrap = GL_TRUE; - ctx->Extensions.EXT_texture_env_add = GL_TRUE; - ctx->Extensions.EXT_texture_env_combine = GL_TRUE; - ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE; - ctx->Extensions.EXT_texture_lod_bias = GL_TRUE; - ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE; - if (ctx->API == API_OPENGLES || ctx->API == API_OPENGLES2) - ctx->Extensions.EXT_texture_format_BGRA8888 = GL_TRUE; - - ctx->Extensions.APPLE_vertex_array_object = GL_TRUE; - - ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE; - - ctx->Extensions.MESA_pack_invert = GL_TRUE; - - ctx->Extensions.NV_blend_square = GL_TRUE; - ctx->Extensions.NV_texgen_reflection = GL_TRUE; - ctx->Extensions.NV_texture_env_combine4 = GL_TRUE; - ctx->Extensions.NV_texture_rectangle = GL_TRUE; -#if 0 - /* possibly could support the following two */ - ctx->Extensions.NV_vertex_program = GL_TRUE; - ctx->Extensions.NV_vertex_program1_1 = GL_TRUE; -#endif - -#if FEATURE_OES_EGL_image - ctx->Extensions.OES_EGL_image = GL_TRUE; -#endif -#if FEATURE_OES_draw_texture - ctx->Extensions.OES_draw_texture = GL_TRUE; -#endif - - ctx->Extensions.SGIS_generate_mipmap = GL_TRUE; - - /* - * Extensions that depend on the driver/hardware: - */ - if (screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS) > 0) { - ctx->Extensions.ARB_draw_buffers = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_TEXTURE_SWIZZLE) > 0) { - ctx->Extensions.EXT_texture_swizzle = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_GLSL)) { - ctx->Extensions.ARB_fragment_shader = GL_TRUE; - ctx->Extensions.ARB_vertex_shader = GL_TRUE; - ctx->Extensions.ARB_shader_objects = GL_TRUE; - ctx->Extensions.ARB_shading_language_100 = GL_TRUE; - ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE; - ctx->Extensions.EXT_separate_shader_objects = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_REPEAT) > 0) { - ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_BLEND_EQUATION_SEPARATE)) { - ctx->Extensions.EXT_blend_equation_separate = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_CLAMP) > 0) { - ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE; - ctx->Extensions.ATI_texture_mirror_once = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) { - ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS) > 1) { - ctx->Extensions.ARB_multitexture = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_TWO_SIDED_STENCIL)) { - ctx->Extensions.ATI_separate_stencil = GL_TRUE; - ctx->Extensions.EXT_stencil_two_side = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_ANISOTROPIC_FILTER)) { - ctx->Extensions.EXT_texture_filter_anisotropic = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_POINT_SPRITE)) { - ctx->Extensions.ARB_point_sprite = GL_TRUE; - /* GL_NV_point_sprite is not supported by gallium because we don't - * support the GL_POINT_SPRITE_R_MODE_NV option. - */ - } - - if (screen->get_param(screen, PIPE_CAP_OCCLUSION_QUERY)) { - ctx->Extensions.ARB_occlusion_query = GL_TRUE; - ctx->Extensions.ARB_occlusion_query2 = GL_TRUE; - } - if (screen->get_param(screen, PIPE_CAP_TIMER_QUERY)) { - ctx->Extensions.EXT_timer_query = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_TEXTURE_SHADOW_MAP)) { - ctx->Extensions.ARB_depth_texture = GL_TRUE; - ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE; - ctx->Extensions.ARB_shadow = GL_TRUE; - ctx->Extensions.EXT_shadow_funcs = GL_TRUE; - /*ctx->Extensions.ARB_shadow_ambient = GL_TRUE;*/ - } - - /* GL_EXT_packed_depth_stencil requires both the ability to render to - * a depth/stencil buffer and texture from depth/stencil source. - */ - if (screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_DEPTH_STENCIL, 0) && - screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0)) { - ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE; - } - else if (screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_DEPTH_STENCIL, 0) && - screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0)) { - ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE; - } - - /* sRGB support */ - if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0) || - screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0)) { - ctx->Extensions.EXT_texture_sRGB = GL_TRUE; - ctx->Extensions.EXT_texture_sRGB_decode = GL_TRUE; - if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_RENDER_TARGET, 0) || - screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_RENDER_TARGET, 0)) { - ctx->Extensions.EXT_framebuffer_sRGB = GL_TRUE; - ctx->Const.sRGBCapable = GL_TRUE; - } - } - - if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0)) { - ctx->Extensions.ARB_texture_rg = GL_TRUE; - } - - /* s3tc support */ - if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0) && - ctx->Mesa_DXTn) { - ctx->Extensions.EXT_texture_compression_s3tc = GL_TRUE; - ctx->Extensions.S3_s3tc = GL_TRUE; - } - - if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0) && - screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_SNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0) && - screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0) && - screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_SNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0) - ) { - ctx->Extensions.ARB_texture_compression_rgtc = GL_TRUE; - } - - if (screen->is_format_supported(screen, PIPE_FORMAT_LATC1_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0) && - screen->is_format_supported(screen, PIPE_FORMAT_LATC1_SNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0) && - screen->is_format_supported(screen, PIPE_FORMAT_LATC2_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0) && - screen->is_format_supported(screen, PIPE_FORMAT_LATC2_SNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0)) { - ctx->Extensions.EXT_texture_compression_latc = GL_TRUE; - } - - if (screen->is_format_supported(screen, PIPE_FORMAT_LATC2_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0)) { - ctx->Extensions.ATI_texture_compression_3dc = GL_TRUE; - } - - /* ycbcr support */ - if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0) || - screen->is_format_supported(screen, PIPE_FORMAT_YUYV, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW, 0)) { - ctx->Extensions.MESA_ycbcr_texture = GL_TRUE; - } - - /* GL_EXT_texture_array */ - if (screen->get_param(screen, PIPE_CAP_ARRAY_TEXTURES)) { - ctx->Extensions.EXT_texture_array = GL_TRUE; - ctx->Extensions.MESA_texture_array = GL_TRUE; - } - - /* GL_ARB_framebuffer_object */ - if (ctx->Extensions.EXT_packed_depth_stencil) { - /* we support always support GL_EXT_framebuffer_blit */ - ctx->Extensions.ARB_framebuffer_object = GL_TRUE; - } - - if (st->pipe->render_condition) { - ctx->Extensions.NV_conditional_render = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_ENABLE)) { - ctx->Extensions.EXT_draw_buffers2 = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_FUNC)) { - ctx->Extensions.ARB_draw_buffers_blend = GL_TRUE; - } - - /* GL_ARB_half_float_vertex */ - if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_FLOAT, - PIPE_BUFFER, 0, - PIPE_BIND_VERTEX_BUFFER, 0)) { - ctx->Extensions.ARB_half_float_vertex = GL_TRUE; - } - - if (screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY, PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) { -#if 0 /* XXX re-enable when GLSL compiler again supports geometry shaders */ - ctx->Extensions.ARB_geometry_shader4 = GL_TRUE; -#endif - } - - if (screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART)) { - ctx->Extensions.NV_primitive_restart = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_DEPTH_CLAMP)) { - ctx->Extensions.ARB_depth_clamp = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT)) { - ctx->Extensions.ARB_shader_stencil_export = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_TGSI_INSTANCEID)) { - ctx->Extensions.ARB_draw_instanced = GL_TRUE; - } - if (screen->get_param(screen, PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR)) { - ctx->Extensions.ARB_instanced_arrays = GL_TRUE; - } - - if (screen->fence_finish) { - ctx->Extensions.ARB_sync = GL_TRUE; - } -} +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * Copyright (c) 2008 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "main/imports.h" +#include "main/context.h" +#include "main/macros.h" +#include "main/mfeatures.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_screen.h" + +#include "st_context.h" +#include "st_extensions.h" + + +static int _min(int a, int b) +{ + return (a < b) ? a : b; +} + +static float _maxf(float a, float b) +{ + return (a > b) ? a : b; +} + +static int _clamp(int a, int min, int max) +{ + if (a < min) + return min; + else if (a > max) + return max; + else + return a; +} + + +/** + * Query driver to get implementation limits. + * Note that we have to limit/clamp against Mesa's internal limits too. + */ +void st_init_limits(struct st_context *st) +{ + struct pipe_screen *screen = st->pipe->screen; + struct gl_constants *c = &st->ctx->Const; + gl_shader_type sh; + + c->MaxTextureLevels + = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS), + MAX_TEXTURE_LEVELS); + + c->Max3DTextureLevels + = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS), + MAX_3D_TEXTURE_LEVELS); + + c->MaxCubeTextureLevels + = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS), + MAX_CUBE_TEXTURE_LEVELS); + + c->MaxTextureRectSize + = _min(1 << (c->MaxTextureLevels - 1), MAX_TEXTURE_RECT_SIZE); + + c->MaxTextureImageUnits + = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS), + MAX_TEXTURE_IMAGE_UNITS); + + c->MaxVertexTextureImageUnits + = _min(screen->get_param(screen, PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS), + MAX_VERTEX_TEXTURE_IMAGE_UNITS); + + c->MaxCombinedTextureImageUnits + = _min(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SAMPLERS), + MAX_COMBINED_TEXTURE_IMAGE_UNITS); + + c->MaxTextureCoordUnits + = _min(c->MaxTextureImageUnits, MAX_TEXTURE_COORD_UNITS); + + c->MaxTextureUnits = _min(c->MaxTextureImageUnits, c->MaxTextureCoordUnits); + + c->MaxDrawBuffers + = _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS), + 1, MAX_DRAW_BUFFERS); + + c->MaxLineWidth + = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH)); + c->MaxLineWidthAA + = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH_AA)); + + c->MaxPointSize + = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH)); + c->MaxPointSizeAA + = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH_AA)); + /* called after _mesa_create_context/_mesa_init_point, fix default user + * settable max point size up + */ + st->ctx->Point.MaxSize = MAX2(c->MaxPointSize, c->MaxPointSizeAA); + /* these are not queryable. Note that GL basically mandates a 1.0 minimum + * for non-aa sizes, but we can go down to 0.0 for aa points. + */ + c->MinPointSize = 1.0f; + c->MinPointSizeAA = 0.0f; + + c->MaxTextureMaxAnisotropy + = _maxf(2.0f, screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_ANISOTROPY)); + + c->MaxTextureLodBias + = screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_LOD_BIAS); + + c->MaxDrawBuffers + = CLAMP(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS), + 1, MAX_DRAW_BUFFERS); + + /* Quads always follow GL provoking rules. */ + c->QuadsFollowProvokingVertexConvention = GL_FALSE; + + for (sh = 0; sh < MESA_SHADER_TYPES; ++sh) { + struct gl_shader_compiler_options *options = + &st->ctx->ShaderCompilerOptions[sh]; + struct gl_program_constants *pc; + + switch (sh) { + case PIPE_SHADER_FRAGMENT: + pc = &c->FragmentProgram; + break; + case PIPE_SHADER_VERTEX: + pc = &c->VertexProgram; + break; + case PIPE_SHADER_GEOMETRY: + pc = &c->GeometryProgram; + break; + default: + assert(0); + continue; + } + + pc->MaxNativeInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS); + pc->MaxNativeAluInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS); + pc->MaxNativeTexInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS); + pc->MaxNativeTexIndirections = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS); + pc->MaxNativeAttribs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS); + pc->MaxNativeTemps = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS); + pc->MaxNativeAddressRegs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ADDRS); + pc->MaxNativeParameters = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONSTS); + pc->MaxUniformComponents = 4 * MIN2(pc->MaxNativeParameters, MAX_UNIFORMS); + + options->EmitNoNoise = TRUE; + + /* TODO: make these more fine-grained if anyone needs it */ + options->EmitNoIfs = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH); + options->EmitNoLoops = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH); + options->EmitNoFunctions = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES); + options->EmitNoMainReturn = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES); + + options->EmitNoCont = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED); + + options->EmitNoIndirectInput = !screen->get_shader_param(screen, sh, + PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR); + options->EmitNoIndirectOutput = !screen->get_shader_param(screen, sh, + PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR); + options->EmitNoIndirectTemp = !screen->get_shader_param(screen, sh, + PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR); + options->EmitNoIndirectUniform = !screen->get_shader_param(screen, sh, + PIPE_SHADER_CAP_INDIRECT_CONST_ADDR); + + if(options->EmitNoLoops) + options->MaxUnrollIterations = MIN2(screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS), 65536); + } + + /* PIPE_CAP_MAX_FS_INPUTS specifies the number of COLORn + GENERICn inputs + * and is set in MaxNativeAttribs. It's always 2 colors + N generic + * attributes. The GLSL compiler never uses COLORn for varyings, so we + * subtract the 2 colors to get the maximum number of varyings (generic + * attributes) supported by a driver. */ + c->MaxVarying = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, PIPE_SHADER_CAP_MAX_INPUTS) - 2; + c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING); + + /* XXX we'll need a better query here someday */ + if (screen->get_param(screen, PIPE_CAP_GLSL)) { + c->GLSLVersion = 120; + } +} + + +/** + * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine + * which GL extensions are supported. + * Quite a few extensions are always supported because they are standard + * features or can be built on top of other gallium features. + * Some fine tuning may still be needed. + */ +void st_init_extensions(struct st_context *st) +{ + struct pipe_screen *screen = st->pipe->screen; + struct gl_context *ctx = st->ctx; + + /* + * Extensions that are supported by all Gallium drivers: + */ + ctx->Extensions.ARB_copy_buffer = GL_TRUE; + ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE; + ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE; + ctx->Extensions.ARB_fragment_program = GL_TRUE; + ctx->Extensions.ARB_half_float_pixel = GL_TRUE; + ctx->Extensions.ARB_map_buffer_range = GL_TRUE; + ctx->Extensions.ARB_multisample = GL_TRUE; + ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; /* XXX temp */ + ctx->Extensions.ARB_texture_compression = GL_TRUE; + ctx->Extensions.ARB_texture_cube_map = GL_TRUE; + ctx->Extensions.ARB_texture_env_combine = GL_TRUE; + ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE; + ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE; + ctx->Extensions.ARB_vertex_array_object = GL_TRUE; + ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE; + ctx->Extensions.ARB_vertex_program = GL_TRUE; + ctx->Extensions.ARB_window_pos = GL_TRUE; + + ctx->Extensions.EXT_blend_color = GL_TRUE; + ctx->Extensions.EXT_blend_func_separate = GL_TRUE; + ctx->Extensions.EXT_blend_logic_op = GL_TRUE; + ctx->Extensions.EXT_blend_minmax = GL_TRUE; + ctx->Extensions.EXT_blend_subtract = GL_TRUE; + ctx->Extensions.EXT_framebuffer_blit = GL_TRUE; + ctx->Extensions.EXT_framebuffer_object = GL_TRUE; + ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE; + ctx->Extensions.EXT_fog_coord = GL_TRUE; + ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE; + ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE; + ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE; + ctx->Extensions.EXT_point_parameters = GL_TRUE; + ctx->Extensions.EXT_provoking_vertex = GL_TRUE; + ctx->Extensions.EXT_secondary_color = GL_TRUE; + ctx->Extensions.EXT_stencil_wrap = GL_TRUE; + ctx->Extensions.EXT_texture_env_add = GL_TRUE; + ctx->Extensions.EXT_texture_env_combine = GL_TRUE; + ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE; + ctx->Extensions.EXT_texture_lod_bias = GL_TRUE; + ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE; + if (ctx->API == API_OPENGLES || ctx->API == API_OPENGLES2) + ctx->Extensions.EXT_texture_format_BGRA8888 = GL_TRUE; + + ctx->Extensions.APPLE_vertex_array_object = GL_TRUE; + + ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE; + + ctx->Extensions.MESA_pack_invert = GL_TRUE; + + ctx->Extensions.NV_blend_square = GL_TRUE; + ctx->Extensions.NV_texgen_reflection = GL_TRUE; + ctx->Extensions.NV_texture_env_combine4 = GL_TRUE; + ctx->Extensions.NV_texture_rectangle = GL_TRUE; +#if 0 + /* possibly could support the following two */ + ctx->Extensions.NV_vertex_program = GL_TRUE; + ctx->Extensions.NV_vertex_program1_1 = GL_TRUE; +#endif + +#if FEATURE_OES_EGL_image + ctx->Extensions.OES_EGL_image = GL_TRUE; +#endif +#if FEATURE_OES_draw_texture + ctx->Extensions.OES_draw_texture = GL_TRUE; +#endif + + ctx->Extensions.SGIS_generate_mipmap = GL_TRUE; + + /* + * Extensions that depend on the driver/hardware: + */ + if (screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS) > 0) { + ctx->Extensions.ARB_draw_buffers = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_TEXTURE_SWIZZLE) > 0) { + ctx->Extensions.EXT_texture_swizzle = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_GLSL)) { + ctx->Extensions.ARB_fragment_shader = GL_TRUE; + ctx->Extensions.ARB_vertex_shader = GL_TRUE; + ctx->Extensions.ARB_shader_objects = GL_TRUE; + ctx->Extensions.ARB_shading_language_100 = GL_TRUE; + ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE; + ctx->Extensions.EXT_separate_shader_objects = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_REPEAT) > 0) { + ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_BLEND_EQUATION_SEPARATE)) { + ctx->Extensions.EXT_blend_equation_separate = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_CLAMP) > 0) { + ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE; + ctx->Extensions.ATI_texture_mirror_once = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) { + ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS) > 1) { + ctx->Extensions.ARB_multitexture = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_TWO_SIDED_STENCIL)) { + ctx->Extensions.ATI_separate_stencil = GL_TRUE; + ctx->Extensions.EXT_stencil_two_side = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_ANISOTROPIC_FILTER)) { + ctx->Extensions.EXT_texture_filter_anisotropic = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_POINT_SPRITE)) { + ctx->Extensions.ARB_point_sprite = GL_TRUE; + /* GL_NV_point_sprite is not supported by gallium because we don't + * support the GL_POINT_SPRITE_R_MODE_NV option. + */ + } + + if (screen->get_param(screen, PIPE_CAP_OCCLUSION_QUERY)) { + ctx->Extensions.ARB_occlusion_query = GL_TRUE; + ctx->Extensions.ARB_occlusion_query2 = GL_TRUE; + } + if (screen->get_param(screen, PIPE_CAP_TIMER_QUERY)) { + ctx->Extensions.EXT_timer_query = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_TEXTURE_SHADOW_MAP)) { + ctx->Extensions.ARB_depth_texture = GL_TRUE; + ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE; + ctx->Extensions.ARB_shadow = GL_TRUE; + ctx->Extensions.EXT_shadow_funcs = GL_TRUE; + /*ctx->Extensions.ARB_shadow_ambient = GL_TRUE;*/ + } + + /* GL_EXT_packed_depth_stencil requires both the ability to render to + * a depth/stencil buffer and texture from depth/stencil source. + */ + if (screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_DEPTH_STENCIL) && + screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE; + } + else if (screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_DEPTH_STENCIL) && + screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE; + } + + /* sRGB support */ + if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) || + screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.EXT_texture_sRGB = GL_TRUE; + ctx->Extensions.EXT_texture_sRGB_decode = GL_TRUE; + if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_RENDER_TARGET) || + screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_RENDER_TARGET)) { + ctx->Extensions.EXT_framebuffer_sRGB = GL_TRUE; + ctx->Const.sRGBCapable = GL_TRUE; + } + } + + if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.ARB_texture_rg = GL_TRUE; + } + + /* s3tc support */ + if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) && + ctx->Mesa_DXTn) { + ctx->Extensions.EXT_texture_compression_s3tc = GL_TRUE; + ctx->Extensions.S3_s3tc = GL_TRUE; + } + + if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) && + screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_SNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) && + screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) && + screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_SNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) + ) { + ctx->Extensions.ARB_texture_compression_rgtc = GL_TRUE; + } + + if (screen->is_format_supported(screen, PIPE_FORMAT_LATC1_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) && + screen->is_format_supported(screen, PIPE_FORMAT_LATC1_SNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) && + screen->is_format_supported(screen, PIPE_FORMAT_LATC2_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) && + screen->is_format_supported(screen, PIPE_FORMAT_LATC2_SNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.EXT_texture_compression_latc = GL_TRUE; + } + + if (screen->is_format_supported(screen, PIPE_FORMAT_LATC2_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.ATI_texture_compression_3dc = GL_TRUE; + } + + /* ycbcr support */ + if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) || + screen->is_format_supported(screen, PIPE_FORMAT_YUYV, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.MESA_ycbcr_texture = GL_TRUE; + } + + /* GL_EXT_texture_array */ + if (screen->get_param(screen, PIPE_CAP_ARRAY_TEXTURES)) { + ctx->Extensions.EXT_texture_array = GL_TRUE; + ctx->Extensions.MESA_texture_array = GL_TRUE; + } + + /* GL_ARB_framebuffer_object */ + if (ctx->Extensions.EXT_packed_depth_stencil) { + /* we support always support GL_EXT_framebuffer_blit */ + ctx->Extensions.ARB_framebuffer_object = GL_TRUE; + } + + if (st->pipe->render_condition) { + ctx->Extensions.NV_conditional_render = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_ENABLE)) { + ctx->Extensions.EXT_draw_buffers2 = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_FUNC)) { + ctx->Extensions.ARB_draw_buffers_blend = GL_TRUE; + } + + /* GL_ARB_half_float_vertex */ + if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_FLOAT, + PIPE_BUFFER, 0, + PIPE_BIND_VERTEX_BUFFER)) { + ctx->Extensions.ARB_half_float_vertex = GL_TRUE; + } + + if (screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY, PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) { +#if 0 /* XXX re-enable when GLSL compiler again supports geometry shaders */ + ctx->Extensions.ARB_geometry_shader4 = GL_TRUE; +#endif + } + + if (screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART)) { + ctx->Extensions.NV_primitive_restart = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_DEPTH_CLAMP)) { + ctx->Extensions.ARB_depth_clamp = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT)) { + ctx->Extensions.ARB_shader_stencil_export = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_TGSI_INSTANCEID)) { + ctx->Extensions.ARB_draw_instanced = GL_TRUE; + } + if (screen->get_param(screen, PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR)) { + ctx->Extensions.ARB_instanced_arrays = GL_TRUE; + } + + if (screen->fence_finish) { + ctx->Extensions.ARB_sync = GL_TRUE; + } +} diff --git a/mesalib/src/mesa/state_tracker/st_format.c b/mesalib/src/mesa/state_tracker/st_format.c index 6b89bae7d..0e67a6bc2 100644 --- a/mesalib/src/mesa/state_tracker/st_format.c +++ b/mesalib/src/mesa/state_tracker/st_format.c @@ -1,1222 +1,1184 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * Copyright (c) 2008-2010 VMware, Inc. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - - -/** - * Mesa / Gallium format conversion and format selection code. - * \author Brian Paul - */ - -#include "main/imports.h" -#include "main/context.h" -#include "main/texstore.h" -#include "main/image.h" -#include "main/macros.h" -#include "main/mfeatures.h" - -#include "pipe/p_context.h" -#include "pipe/p_defines.h" -#include "pipe/p_screen.h" -#include "util/u_format.h" -#include "st_context.h" -#include "st_format.h" - - -static GLuint -format_max_bits(enum pipe_format format) -{ - GLuint size = util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 0); - - size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 1)); - size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 2)); - size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 3)); - size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0)); - size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1)); - return size; -} - - -/** - * Return basic GL datatype for the given gallium format. - */ -GLenum -st_format_datatype(enum pipe_format format) -{ - const struct util_format_description *desc; - - desc = util_format_description(format); - assert(desc); - - if (desc->layout == UTIL_FORMAT_LAYOUT_PLAIN) { - if (format == PIPE_FORMAT_B5G5R5A1_UNORM || - format == PIPE_FORMAT_B5G6R5_UNORM) { - return GL_UNSIGNED_SHORT; - } - else if (format == PIPE_FORMAT_Z24_UNORM_S8_USCALED || - format == PIPE_FORMAT_S8_USCALED_Z24_UNORM || - format == PIPE_FORMAT_Z24X8_UNORM || - format == PIPE_FORMAT_X8Z24_UNORM) { - return GL_UNSIGNED_INT_24_8; - } - else { - const GLuint size = format_max_bits(format); - if (size == 8) { - if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED) - return GL_UNSIGNED_BYTE; - else - return GL_BYTE; - } - else if (size == 16) { - if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED) - return GL_UNSIGNED_SHORT; - else - return GL_SHORT; - } - else { - assert( size <= 32 ); - if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED) - return GL_UNSIGNED_INT; - else - return GL_INT; - } - } - } - else if (format == PIPE_FORMAT_UYVY) { - return GL_UNSIGNED_SHORT; - } - else if (format == PIPE_FORMAT_YUYV) { - return GL_UNSIGNED_SHORT; - } - else { - /* probably a compressed format, unsupported anyway */ - return GL_NONE; - } -} - - -/** - * Translate Mesa format to Gallium format. - */ -enum pipe_format -st_mesa_format_to_pipe_format(gl_format mesaFormat) -{ - switch (mesaFormat) { - case MESA_FORMAT_RGBA8888: - return PIPE_FORMAT_A8B8G8R8_UNORM; - case MESA_FORMAT_RGBA8888_REV: - return PIPE_FORMAT_R8G8B8A8_UNORM; - case MESA_FORMAT_ARGB8888: - return PIPE_FORMAT_B8G8R8A8_UNORM; - case MESA_FORMAT_ARGB8888_REV: - return PIPE_FORMAT_A8R8G8B8_UNORM; - case MESA_FORMAT_XRGB8888: - return PIPE_FORMAT_B8G8R8X8_UNORM; - case MESA_FORMAT_XRGB8888_REV: - return PIPE_FORMAT_X8R8G8B8_UNORM; - case MESA_FORMAT_ARGB1555: - return PIPE_FORMAT_B5G5R5A1_UNORM; - case MESA_FORMAT_ARGB4444: - return PIPE_FORMAT_B4G4R4A4_UNORM; - case MESA_FORMAT_RGB565: - return PIPE_FORMAT_B5G6R5_UNORM; - case MESA_FORMAT_RGB332: - return PIPE_FORMAT_B2G3R3_UNORM; - case MESA_FORMAT_ARGB2101010: - return PIPE_FORMAT_B10G10R10A2_UNORM; - case MESA_FORMAT_AL44: - return PIPE_FORMAT_L4A4_UNORM; - case MESA_FORMAT_AL88: - return PIPE_FORMAT_L8A8_UNORM; - case MESA_FORMAT_AL1616: - return PIPE_FORMAT_L16A16_UNORM; - case MESA_FORMAT_A8: - return PIPE_FORMAT_A8_UNORM; - case MESA_FORMAT_A16: - return PIPE_FORMAT_A16_UNORM; - case MESA_FORMAT_L8: - return PIPE_FORMAT_L8_UNORM; - case MESA_FORMAT_L16: - return PIPE_FORMAT_L16_UNORM; - case MESA_FORMAT_I8: - return PIPE_FORMAT_I8_UNORM; - case MESA_FORMAT_I16: - return PIPE_FORMAT_I16_UNORM; - case MESA_FORMAT_Z16: - return PIPE_FORMAT_Z16_UNORM; - case MESA_FORMAT_Z32: - return PIPE_FORMAT_Z32_UNORM; - case MESA_FORMAT_Z24_S8: - return PIPE_FORMAT_S8_USCALED_Z24_UNORM; - case MESA_FORMAT_S8_Z24: - return PIPE_FORMAT_Z24_UNORM_S8_USCALED; - case MESA_FORMAT_Z24_X8: - return PIPE_FORMAT_X8Z24_UNORM; - case MESA_FORMAT_X8_Z24: - return PIPE_FORMAT_Z24X8_UNORM; - case MESA_FORMAT_S8: - return PIPE_FORMAT_S8_USCALED; - case MESA_FORMAT_YCBCR: - return PIPE_FORMAT_UYVY; -#if FEATURE_texture_s3tc - case MESA_FORMAT_RGB_DXT1: - return PIPE_FORMAT_DXT1_RGB; - case MESA_FORMAT_RGBA_DXT1: - return PIPE_FORMAT_DXT1_RGBA; - case MESA_FORMAT_RGBA_DXT3: - return PIPE_FORMAT_DXT3_RGBA; - case MESA_FORMAT_RGBA_DXT5: - return PIPE_FORMAT_DXT5_RGBA; -#if FEATURE_EXT_texture_sRGB - case MESA_FORMAT_SRGB_DXT1: - return PIPE_FORMAT_DXT1_SRGB; - case MESA_FORMAT_SRGBA_DXT1: - return PIPE_FORMAT_DXT1_SRGBA; - case MESA_FORMAT_SRGBA_DXT3: - return PIPE_FORMAT_DXT3_SRGBA; - case MESA_FORMAT_SRGBA_DXT5: - return PIPE_FORMAT_DXT5_SRGBA; -#endif -#endif -#if FEATURE_EXT_texture_sRGB - case MESA_FORMAT_SLA8: - return PIPE_FORMAT_L8A8_SRGB; - case MESA_FORMAT_SL8: - return PIPE_FORMAT_L8_SRGB; - case MESA_FORMAT_SRGB8: - return PIPE_FORMAT_R8G8B8_SRGB; - case MESA_FORMAT_SRGBA8: - return PIPE_FORMAT_A8B8G8R8_SRGB; - case MESA_FORMAT_SARGB8: - return PIPE_FORMAT_B8G8R8A8_SRGB; -#endif - case MESA_FORMAT_R8: - return PIPE_FORMAT_R8_UNORM; - case MESA_FORMAT_R16: - return PIPE_FORMAT_R16_UNORM; - case MESA_FORMAT_RG88: - return PIPE_FORMAT_R8G8_UNORM; - case MESA_FORMAT_RG1616: - return PIPE_FORMAT_R16G16_UNORM; - case MESA_FORMAT_RGBA_16: - return PIPE_FORMAT_R16G16B16A16_UNORM; - - /* signed int formats */ - case MESA_FORMAT_RGBA_INT8: - return PIPE_FORMAT_R8G8B8A8_SSCALED; - case MESA_FORMAT_RGBA_INT16: - return PIPE_FORMAT_R16G16B16A16_SSCALED; - case MESA_FORMAT_RGBA_INT32: - return PIPE_FORMAT_R32G32B32A32_SSCALED; - - /* unsigned int formats */ - case MESA_FORMAT_RGBA_UINT8: - return PIPE_FORMAT_R8G8B8A8_USCALED; - case MESA_FORMAT_RGBA_UINT16: - return PIPE_FORMAT_R16G16B16A16_USCALED; - case MESA_FORMAT_RGBA_UINT32: - return PIPE_FORMAT_R32G32B32A32_USCALED; - - case MESA_FORMAT_RED_RGTC1: - return PIPE_FORMAT_RGTC1_UNORM; - case MESA_FORMAT_SIGNED_RED_RGTC1: - return PIPE_FORMAT_RGTC1_SNORM; - case MESA_FORMAT_RG_RGTC2: - return PIPE_FORMAT_RGTC2_UNORM; - case MESA_FORMAT_SIGNED_RG_RGTC2: - return PIPE_FORMAT_RGTC2_SNORM; - - case MESA_FORMAT_L_LATC1: - return PIPE_FORMAT_LATC1_UNORM; - case MESA_FORMAT_SIGNED_L_LATC1: - return PIPE_FORMAT_LATC1_SNORM; - case MESA_FORMAT_LA_LATC2: - return PIPE_FORMAT_LATC2_UNORM; - case MESA_FORMAT_SIGNED_LA_LATC2: - return PIPE_FORMAT_LATC2_SNORM; - - default: - assert(0); - return PIPE_FORMAT_NONE; - } -} - - -/** - * Translate Gallium format to Mesa format. - */ -gl_format -st_pipe_format_to_mesa_format(enum pipe_format format) -{ - switch (format) { - case PIPE_FORMAT_A8B8G8R8_UNORM: - return MESA_FORMAT_RGBA8888; - case PIPE_FORMAT_R8G8B8A8_UNORM: - return MESA_FORMAT_RGBA8888_REV; - case PIPE_FORMAT_B8G8R8A8_UNORM: - return MESA_FORMAT_ARGB8888; - case PIPE_FORMAT_A8R8G8B8_UNORM: - return MESA_FORMAT_ARGB8888_REV; - case PIPE_FORMAT_B8G8R8X8_UNORM: - return MESA_FORMAT_XRGB8888; - case PIPE_FORMAT_X8R8G8B8_UNORM: - return MESA_FORMAT_XRGB8888_REV; - case PIPE_FORMAT_B5G5R5A1_UNORM: - return MESA_FORMAT_ARGB1555; - case PIPE_FORMAT_B4G4R4A4_UNORM: - return MESA_FORMAT_ARGB4444; - case PIPE_FORMAT_B5G6R5_UNORM: - return MESA_FORMAT_RGB565; - case PIPE_FORMAT_B2G3R3_UNORM: - return MESA_FORMAT_RGB332; - case PIPE_FORMAT_B10G10R10A2_UNORM: - return MESA_FORMAT_ARGB2101010; - case PIPE_FORMAT_L4A4_UNORM: - return MESA_FORMAT_AL44; - case PIPE_FORMAT_L8A8_UNORM: - return MESA_FORMAT_AL88; - case PIPE_FORMAT_L16A16_UNORM: - return MESA_FORMAT_AL1616; - case PIPE_FORMAT_A8_UNORM: - return MESA_FORMAT_A8; - case PIPE_FORMAT_A16_UNORM: - return MESA_FORMAT_A16; - case PIPE_FORMAT_L8_UNORM: - return MESA_FORMAT_L8; - case PIPE_FORMAT_L16_UNORM: - return MESA_FORMAT_L16; - case PIPE_FORMAT_I8_UNORM: - return MESA_FORMAT_I8; - case PIPE_FORMAT_I16_UNORM: - return MESA_FORMAT_I16; - case PIPE_FORMAT_S8_USCALED: - return MESA_FORMAT_S8; - - case PIPE_FORMAT_R16G16B16A16_UNORM: - return MESA_FORMAT_RGBA_16; - case PIPE_FORMAT_R16G16B16A16_SNORM: - return MESA_FORMAT_SIGNED_RGBA_16; - - case PIPE_FORMAT_Z16_UNORM: - return MESA_FORMAT_Z16; - case PIPE_FORMAT_Z32_UNORM: - return MESA_FORMAT_Z32; - case PIPE_FORMAT_S8_USCALED_Z24_UNORM: - return MESA_FORMAT_Z24_S8; - case PIPE_FORMAT_X8Z24_UNORM: - return MESA_FORMAT_Z24_X8; - case PIPE_FORMAT_Z24X8_UNORM: - return MESA_FORMAT_X8_Z24; - case PIPE_FORMAT_Z24_UNORM_S8_USCALED: - return MESA_FORMAT_S8_Z24; - - case PIPE_FORMAT_UYVY: - return MESA_FORMAT_YCBCR; - case PIPE_FORMAT_YUYV: - return MESA_FORMAT_YCBCR_REV; - -#if FEATURE_texture_s3tc - case PIPE_FORMAT_DXT1_RGB: - return MESA_FORMAT_RGB_DXT1; - case PIPE_FORMAT_DXT1_RGBA: - return MESA_FORMAT_RGBA_DXT1; - case PIPE_FORMAT_DXT3_RGBA: - return MESA_FORMAT_RGBA_DXT3; - case PIPE_FORMAT_DXT5_RGBA: - return MESA_FORMAT_RGBA_DXT5; -#if FEATURE_EXT_texture_sRGB - case PIPE_FORMAT_DXT1_SRGB: - return MESA_FORMAT_SRGB_DXT1; - case PIPE_FORMAT_DXT1_SRGBA: - return MESA_FORMAT_SRGBA_DXT1; - case PIPE_FORMAT_DXT3_SRGBA: - return MESA_FORMAT_SRGBA_DXT3; - case PIPE_FORMAT_DXT5_SRGBA: - return MESA_FORMAT_SRGBA_DXT5; -#endif -#endif - -#if FEATURE_EXT_texture_sRGB - case PIPE_FORMAT_L8A8_SRGB: - return MESA_FORMAT_SLA8; - case PIPE_FORMAT_L8_SRGB: - return MESA_FORMAT_SL8; - case PIPE_FORMAT_R8G8B8_SRGB: - return MESA_FORMAT_SRGB8; - case PIPE_FORMAT_A8B8G8R8_SRGB: - return MESA_FORMAT_SRGBA8; - case PIPE_FORMAT_B8G8R8A8_SRGB: - return MESA_FORMAT_SARGB8; -#endif - - case PIPE_FORMAT_R8_UNORM: - return MESA_FORMAT_R8; - case PIPE_FORMAT_R16_UNORM: - return MESA_FORMAT_R16; - case PIPE_FORMAT_R8G8_UNORM: - return MESA_FORMAT_RG88; - case PIPE_FORMAT_R16G16_UNORM: - return MESA_FORMAT_RG1616; - - /* signed int formats */ - case PIPE_FORMAT_R8G8B8A8_SSCALED: - return MESA_FORMAT_RGBA_INT8; - case PIPE_FORMAT_R16G16B16A16_SSCALED: - return MESA_FORMAT_RGBA_INT16; - case PIPE_FORMAT_R32G32B32A32_SSCALED: - return MESA_FORMAT_RGBA_INT32; - - /* unsigned int formats */ - case PIPE_FORMAT_R8G8B8A8_USCALED: - return MESA_FORMAT_RGBA_UINT8; - case PIPE_FORMAT_R16G16B16A16_USCALED: - return MESA_FORMAT_RGBA_UINT16; - case PIPE_FORMAT_R32G32B32A32_USCALED: - return MESA_FORMAT_RGBA_UINT32; - - case PIPE_FORMAT_RGTC1_UNORM: - return MESA_FORMAT_RED_RGTC1; - case PIPE_FORMAT_RGTC1_SNORM: - return MESA_FORMAT_SIGNED_RED_RGTC1; - case PIPE_FORMAT_RGTC2_UNORM: - return MESA_FORMAT_RG_RGTC2; - case PIPE_FORMAT_RGTC2_SNORM: - return MESA_FORMAT_SIGNED_RG_RGTC2; - - case PIPE_FORMAT_LATC1_UNORM: - return MESA_FORMAT_L_LATC1; - case PIPE_FORMAT_LATC1_SNORM: - return MESA_FORMAT_SIGNED_L_LATC1; - case PIPE_FORMAT_LATC2_UNORM: - return MESA_FORMAT_LA_LATC2; - case PIPE_FORMAT_LATC2_SNORM: - return MESA_FORMAT_SIGNED_LA_LATC2; - - default: - assert(0); - return MESA_FORMAT_NONE; - } -} - - -/** - * Return first supported format from the given list. - */ -static enum pipe_format -find_supported_format(struct pipe_screen *screen, - const enum pipe_format formats[], - uint num_formats, - enum pipe_texture_target target, - unsigned sample_count, - unsigned tex_usage, - unsigned geom_flags) -{ - uint i; - for (i = 0; i < num_formats; i++) { - if (screen->is_format_supported(screen, formats[i], target, - sample_count, tex_usage, geom_flags)) { - return formats[i]; - } - } - return PIPE_FORMAT_NONE; -} - - -/** - * Find an RGBA format supported by the context/winsys. - */ -static enum pipe_format -default_rgba_format(struct pipe_screen *screen, - enum pipe_texture_target target, - unsigned sample_count, - unsigned tex_usage, - unsigned geom_flags) -{ - static const enum pipe_format colorFormats[] = { - PIPE_FORMAT_B8G8R8A8_UNORM, - PIPE_FORMAT_A8R8G8B8_UNORM, - PIPE_FORMAT_A8B8G8R8_UNORM, - PIPE_FORMAT_B5G6R5_UNORM - }; - return find_supported_format(screen, colorFormats, Elements(colorFormats), - target, sample_count, tex_usage, geom_flags); -} - - -/** - * Find an RGB format supported by the context/winsys. - */ -static enum pipe_format -default_rgb_format(struct pipe_screen *screen, - enum pipe_texture_target target, - unsigned sample_count, - unsigned tex_usage, - unsigned geom_flags) -{ - static const enum pipe_format colorFormats[] = { - PIPE_FORMAT_B8G8R8X8_UNORM, - PIPE_FORMAT_X8R8G8B8_UNORM, - PIPE_FORMAT_X8B8G8R8_UNORM, - PIPE_FORMAT_B8G8R8A8_UNORM, - PIPE_FORMAT_A8R8G8B8_UNORM, - PIPE_FORMAT_A8B8G8R8_UNORM, - PIPE_FORMAT_B5G6R5_UNORM - }; - return find_supported_format(screen, colorFormats, Elements(colorFormats), - target, sample_count, tex_usage, geom_flags); -} - -/** - * Find an sRGBA format supported by the context/winsys. - */ -static enum pipe_format -default_srgba_format(struct pipe_screen *screen, - enum pipe_texture_target target, - unsigned sample_count, - unsigned tex_usage, - unsigned geom_flags) -{ - static const enum pipe_format colorFormats[] = { - PIPE_FORMAT_B8G8R8A8_SRGB, - PIPE_FORMAT_A8R8G8B8_SRGB, - PIPE_FORMAT_A8B8G8R8_SRGB, - }; - return find_supported_format(screen, colorFormats, Elements(colorFormats), - target, sample_count, tex_usage, geom_flags); -} - - -/** - * Given an OpenGL internalFormat value for a texture or surface, return - * the best matching PIPE_FORMAT_x, or PIPE_FORMAT_NONE if there's no match. - * This is called during glTexImage2D, for example. - * - * The bindings parameter typically has PIPE_BIND_SAMPLER_VIEW set, plus - * either PIPE_BINDING_RENDER_TARGET or PIPE_BINDING_DEPTH_STENCIL if - * we want render-to-texture ability. - * - * \param internalFormat the user value passed to glTexImage2D - * \param target one of PIPE_TEXTURE_x - * \param bindings bitmask of PIPE_BIND_x flags. - */ -enum pipe_format -st_choose_format(struct pipe_screen *screen, GLenum internalFormat, - enum pipe_texture_target target, unsigned sample_count, - unsigned bindings) -{ - unsigned geom_flags = 0; /* we don't care about POT vs. NPOT here, yet */ - - switch (internalFormat) { - case GL_RGB10: - case GL_RGB10_A2: - if (screen->is_format_supported( screen, PIPE_FORMAT_B10G10R10A2_UNORM, - target, sample_count, bindings, - geom_flags )) - return PIPE_FORMAT_B10G10R10A2_UNORM; - /* Pass through. */ - case 4: - case GL_RGBA: - case GL_RGBA8: - return default_rgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_BGRA: - if (screen->is_format_supported( screen, PIPE_FORMAT_B8G8R8A8_UNORM, - target, sample_count, bindings, - geom_flags )) - return PIPE_FORMAT_B8G8R8A8_UNORM; - return default_rgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case 3: - case GL_RGB: - case GL_RGB8: - return default_rgb_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_RGB12: - case GL_RGB16: - case GL_RGBA12: - case GL_RGBA16: - if (screen->is_format_supported( screen, PIPE_FORMAT_R16G16B16A16_UNORM, - target, sample_count, bindings, - geom_flags )) - return PIPE_FORMAT_R16G16B16A16_UNORM; - return default_rgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_RGBA4: - case GL_RGBA2: - if (screen->is_format_supported( screen, PIPE_FORMAT_B4G4R4A4_UNORM, - target, sample_count, bindings, - geom_flags )) - return PIPE_FORMAT_B4G4R4A4_UNORM; - return default_rgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_RGB5_A1: - if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM, - target, sample_count, bindings, - geom_flags )) - return PIPE_FORMAT_B5G5R5A1_UNORM; - return default_rgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_R3_G3_B2: - if (screen->is_format_supported( screen, PIPE_FORMAT_B2G3R3_UNORM, - target, sample_count, bindings, - geom_flags )) - return PIPE_FORMAT_B2G3R3_UNORM; - /* Pass through. */ - case GL_RGB5: - case GL_RGB4: - if (screen->is_format_supported( screen, PIPE_FORMAT_B5G6R5_UNORM, - target, sample_count, bindings, - geom_flags )) - return PIPE_FORMAT_B5G6R5_UNORM; - if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM, - target, sample_count, bindings, - geom_flags )) - return PIPE_FORMAT_B5G5R5A1_UNORM; - return default_rgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_ALPHA12: - case GL_ALPHA16: - if (screen->is_format_supported( screen, PIPE_FORMAT_A16_UNORM, target, - sample_count, bindings, geom_flags )) - return PIPE_FORMAT_A16_UNORM; - /* Pass through. */ - case GL_ALPHA: - case GL_ALPHA4: - case GL_ALPHA8: - case GL_COMPRESSED_ALPHA: - if (screen->is_format_supported( screen, PIPE_FORMAT_A8_UNORM, target, - sample_count, bindings, geom_flags )) - return PIPE_FORMAT_A8_UNORM; - return default_rgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_LUMINANCE12: - case GL_LUMINANCE16: - if (screen->is_format_supported( screen, PIPE_FORMAT_L16_UNORM, target, - sample_count, bindings, geom_flags )) - return PIPE_FORMAT_L16_UNORM; - /* Pass through. */ - case 1: - case GL_LUMINANCE: - case GL_LUMINANCE4: - case GL_LUMINANCE8: - if (screen->is_format_supported( screen, PIPE_FORMAT_L8_UNORM, target, - sample_count, bindings, geom_flags )) - return PIPE_FORMAT_L8_UNORM; - return default_rgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_LUMINANCE12_ALPHA4: - case GL_LUMINANCE12_ALPHA12: - case GL_LUMINANCE16_ALPHA16: - if (screen->is_format_supported( screen, PIPE_FORMAT_L16A16_UNORM, target, - sample_count, bindings, geom_flags )) - return PIPE_FORMAT_L16A16_UNORM; - /* Pass through. */ - case 2: - case GL_LUMINANCE_ALPHA: - case GL_LUMINANCE6_ALPHA2: - case GL_LUMINANCE8_ALPHA8: - if (screen->is_format_supported( screen, PIPE_FORMAT_L8A8_UNORM, target, - sample_count, bindings, geom_flags )) - return PIPE_FORMAT_L8A8_UNORM; - return default_rgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_LUMINANCE4_ALPHA4: - if (screen->is_format_supported( screen, PIPE_FORMAT_L4A4_UNORM, target, - sample_count, bindings, geom_flags )) - return PIPE_FORMAT_L4A4_UNORM; - if (screen->is_format_supported( screen, PIPE_FORMAT_L8A8_UNORM, target, - sample_count, bindings, geom_flags )) - return PIPE_FORMAT_L8A8_UNORM; - return default_rgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_INTENSITY12: - case GL_INTENSITY16: - if (screen->is_format_supported( screen, PIPE_FORMAT_I16_UNORM, target, - sample_count, bindings, geom_flags )) - return PIPE_FORMAT_I16_UNORM; - /* Pass through. */ - case GL_INTENSITY: - case GL_INTENSITY4: - case GL_INTENSITY8: - case GL_COMPRESSED_INTENSITY: - if (screen->is_format_supported( screen, PIPE_FORMAT_I8_UNORM, target, - sample_count, bindings, geom_flags )) - return PIPE_FORMAT_I8_UNORM; - return default_rgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_YCBCR_MESA: - if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY, target, - sample_count, bindings, geom_flags)) { - return PIPE_FORMAT_UYVY; - } - if (screen->is_format_supported(screen, PIPE_FORMAT_YUYV, target, - sample_count, bindings, geom_flags)) { - return PIPE_FORMAT_YUYV; - } - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_RGB: - /* can only sample from compressed formats */ - if (bindings & ~PIPE_BIND_SAMPLER_VIEW) - return PIPE_FORMAT_NONE; - else if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGB, - target, sample_count, bindings, - geom_flags)) - return PIPE_FORMAT_DXT1_RGB; - else - return default_rgb_format(screen, target, sample_count, bindings, - geom_flags); - - case GL_COMPRESSED_RGBA: - /* can only sample from compressed formats */ - if (bindings & ~PIPE_BIND_SAMPLER_VIEW) - return PIPE_FORMAT_NONE; - else if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_RGBA, - target, sample_count, bindings, - geom_flags)) - return PIPE_FORMAT_DXT3_RGBA; - else - return default_rgba_format(screen, target, sample_count, bindings, - geom_flags); - - case GL_RGB_S3TC: - case GL_RGB4_S3TC: - case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGB, - target, sample_count, bindings, - geom_flags)) - return PIPE_FORMAT_DXT1_RGB; - else - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGBA, - target, sample_count, bindings, - geom_flags)) - return PIPE_FORMAT_DXT1_RGBA; - else - return PIPE_FORMAT_NONE; - - case GL_RGBA_S3TC: - case GL_RGBA4_S3TC: - case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_RGBA, - target, sample_count, bindings, - geom_flags)) - return PIPE_FORMAT_DXT3_RGBA; - else - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA, - target, sample_count, bindings, - geom_flags)) - return PIPE_FORMAT_DXT5_RGBA; - else - return PIPE_FORMAT_NONE; - -#if 0 - case GL_COMPRESSED_RGB_FXT1_3DFX: - return PIPE_FORMAT_RGB_FXT1; - case GL_COMPRESSED_RGBA_FXT1_3DFX: - return PIPE_FORMAT_RGB_FXT1; -#endif - - case GL_DEPTH_COMPONENT16: - if (screen->is_format_supported(screen, PIPE_FORMAT_Z16_UNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_Z16_UNORM; - /* fall-through */ - case GL_DEPTH_COMPONENT24: - if (screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED, - target, sample_count, bindings, geom_flags)) - return PIPE_FORMAT_Z24_UNORM_S8_USCALED; - if (screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM, - target, sample_count, bindings, geom_flags)) - return PIPE_FORMAT_S8_USCALED_Z24_UNORM; - /* fall-through */ - case GL_DEPTH_COMPONENT32: - if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_UNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_Z32_UNORM; - /* fall-through */ - case GL_DEPTH_COMPONENT: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_Z32_UNORM, - PIPE_FORMAT_Z24_UNORM_S8_USCALED, - PIPE_FORMAT_S8_USCALED_Z24_UNORM, - PIPE_FORMAT_Z16_UNORM - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings, geom_flags); - } - - case GL_STENCIL_INDEX: - case GL_STENCIL_INDEX1_EXT: - case GL_STENCIL_INDEX4_EXT: - case GL_STENCIL_INDEX8_EXT: - case GL_STENCIL_INDEX16_EXT: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_S8_USCALED, - PIPE_FORMAT_Z24_UNORM_S8_USCALED, - PIPE_FORMAT_S8_USCALED_Z24_UNORM - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings, geom_flags); - } - - case GL_DEPTH_STENCIL_EXT: - case GL_DEPTH24_STENCIL8_EXT: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_Z24_UNORM_S8_USCALED, - PIPE_FORMAT_S8_USCALED_Z24_UNORM - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings, geom_flags); - } - - case GL_SRGB_EXT: - case GL_SRGB8_EXT: - case GL_SRGB_ALPHA_EXT: - case GL_SRGB8_ALPHA8_EXT: - return default_srgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_COMPRESSED_SRGB_EXT: - case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_SRGB, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_DXT1_SRGB; - return default_srgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: - return PIPE_FORMAT_DXT1_SRGBA; - - case GL_COMPRESSED_SRGB_ALPHA_EXT: - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_SRGBA, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_DXT3_SRGBA; - return default_srgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: - return PIPE_FORMAT_DXT5_SRGBA; - - case GL_SLUMINANCE_ALPHA_EXT: - case GL_SLUMINANCE8_ALPHA8_EXT: - case GL_COMPRESSED_SLUMINANCE_EXT: - case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_L8A8_SRGB, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_L8A8_SRGB; - return default_srgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_SLUMINANCE_EXT: - case GL_SLUMINANCE8_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_L8_SRGB, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_L8_SRGB; - return default_srgba_format( screen, target, sample_count, bindings, - geom_flags ); - - case GL_RED: - case GL_R8: - if (screen->is_format_supported(screen, PIPE_FORMAT_R8_UNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_R8_UNORM; - return PIPE_FORMAT_NONE; - case GL_RG: - case GL_RG8: - if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_R8G8_UNORM; - return PIPE_FORMAT_NONE; - - case GL_R16: - if (screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_R16_UNORM; - return PIPE_FORMAT_NONE; - - case GL_RG16: - if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_R16G16_UNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_RED: - case GL_COMPRESSED_RED_RGTC1: - if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_UNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_RGTC1_UNORM; - if (screen->is_format_supported(screen, PIPE_FORMAT_R8_UNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_R8_UNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_SIGNED_RED_RGTC1: - if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_SNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_RGTC1_SNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_RG: - case GL_COMPRESSED_RG_RGTC2: - if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_UNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_RGTC2_UNORM; - if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_R8G8_UNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_SIGNED_RG_RGTC2: - if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_SNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_RGTC2_SNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_LUMINANCE: - case GL_COMPRESSED_LUMINANCE_LATC1_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_LATC1_UNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_LATC1_UNORM; - if (screen->is_format_supported(screen, PIPE_FORMAT_L8_UNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_L8_UNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_LATC1_SNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_LATC1_SNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_LUMINANCE_ALPHA: - case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: - case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: - if (screen->is_format_supported(screen, PIPE_FORMAT_LATC2_UNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_LATC2_UNORM; - if (screen->is_format_supported(screen, PIPE_FORMAT_L8A8_UNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_L8A8_UNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_LATC2_SNORM, target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_LATC2_SNORM; - return PIPE_FORMAT_NONE; - - /* signed/unsigned integer formats. - * XXX Mesa only has formats for RGBA signed/unsigned integer formats. - * If/when new formats are added this code should be updated. - */ - case GL_RED_INTEGER_EXT: - case GL_GREEN_INTEGER_EXT: - case GL_BLUE_INTEGER_EXT: - case GL_ALPHA_INTEGER_EXT: - case GL_RGB_INTEGER_EXT: - case GL_RGBA_INTEGER_EXT: - case GL_BGR_INTEGER_EXT: - case GL_BGRA_INTEGER_EXT: - case GL_LUMINANCE_INTEGER_EXT: - case GL_LUMINANCE_ALPHA_INTEGER_EXT: - /* fall-through */ - case GL_RGBA8I_EXT: - case GL_RGB8I_EXT: - case GL_ALPHA8I_EXT: - case GL_INTENSITY8I_EXT: - case GL_LUMINANCE8I_EXT: - case GL_LUMINANCE_ALPHA8I_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SSCALED, - target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_R8G8B8A8_SSCALED; - return PIPE_FORMAT_NONE; - case GL_RGBA16I_EXT: - case GL_RGB16I_EXT: - case GL_ALPHA16I_EXT: - case GL_INTENSITY16I_EXT: - case GL_LUMINANCE16I_EXT: - case GL_LUMINANCE_ALPHA16I_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_SSCALED, - target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_R16G16B16A16_SSCALED; - return PIPE_FORMAT_NONE; - case GL_RGBA32I_EXT: - case GL_RGB32I_EXT: - case GL_ALPHA32I_EXT: - case GL_INTENSITY32I_EXT: - case GL_LUMINANCE32I_EXT: - case GL_LUMINANCE_ALPHA32I_EXT: - /* xxx */ - if (screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_SSCALED, - target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_R32G32B32A32_SSCALED; - return PIPE_FORMAT_NONE; - - case GL_RGBA8UI_EXT: - case GL_RGB8UI_EXT: - case GL_ALPHA8UI_EXT: - case GL_INTENSITY8UI_EXT: - case GL_LUMINANCE8UI_EXT: - case GL_LUMINANCE_ALPHA8UI_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_USCALED, - target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_R8G8B8A8_USCALED; - return PIPE_FORMAT_NONE; - - case GL_RGBA16UI_EXT: - case GL_RGB16UI_EXT: - case GL_ALPHA16UI_EXT: - case GL_INTENSITY16UI_EXT: - case GL_LUMINANCE16UI_EXT: - case GL_LUMINANCE_ALPHA16UI_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_USCALED, - target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_R16G16B16A16_USCALED; - return PIPE_FORMAT_NONE; - - case GL_RGBA32UI_EXT: - case GL_RGB32UI_EXT: - case GL_ALPHA32UI_EXT: - case GL_INTENSITY32UI_EXT: - case GL_LUMINANCE32UI_EXT: - case GL_LUMINANCE_ALPHA32UI_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_USCALED, - target, - sample_count, bindings, geom_flags)) - return PIPE_FORMAT_R32G32B32A32_USCALED; - return PIPE_FORMAT_NONE; - - default: - return PIPE_FORMAT_NONE; - } -} - - -/** - * Called by FBO code to choose a PIPE_FORMAT_ for drawing surfaces. - */ -enum pipe_format -st_choose_renderbuffer_format(struct pipe_screen *screen, - GLenum internalFormat, unsigned sample_count) -{ - uint usage; - if (_mesa_is_depth_or_stencil_format(internalFormat)) - usage = PIPE_BIND_DEPTH_STENCIL; - else - usage = PIPE_BIND_RENDER_TARGET; - return st_choose_format(screen, internalFormat, PIPE_TEXTURE_2D, - sample_count, usage); -} - - -/** - * Called via ctx->Driver.chooseTextureFormat(). - */ -gl_format -st_ChooseTextureFormat_renderable(struct gl_context *ctx, GLint internalFormat, - GLenum format, GLenum type, GLboolean renderable) -{ - struct pipe_screen *screen = st_context(ctx)->pipe->screen; - enum pipe_format pFormat; - uint bindings; - - (void) format; - (void) type; - - /* GL textures may wind up being render targets, but we don't know - * that in advance. Specify potential render target flags now. - */ - bindings = PIPE_BIND_SAMPLER_VIEW; - if (renderable == GL_TRUE) { - if (_mesa_is_depth_format(internalFormat) || - _mesa_is_depth_or_stencil_format(internalFormat)) - bindings |= PIPE_BIND_DEPTH_STENCIL; - else - bindings |= PIPE_BIND_RENDER_TARGET; - } - - pFormat = st_choose_format(screen, internalFormat, - PIPE_TEXTURE_2D, 0, bindings); - - if (pFormat == PIPE_FORMAT_NONE) { - /* try choosing format again, this time without render target bindings */ - pFormat = st_choose_format(screen, internalFormat, - PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW); - } - - if (pFormat == PIPE_FORMAT_NONE) { - /* no luck at all */ - return MESA_FORMAT_NONE; - } - - return st_pipe_format_to_mesa_format(pFormat); -} - -gl_format -st_ChooseTextureFormat(struct gl_context *ctx, GLint internalFormat, - GLenum format, GLenum type) -{ - boolean want_renderable = - internalFormat == 3 || internalFormat == 4 || - internalFormat == GL_RGB || internalFormat == GL_RGBA || - internalFormat == GL_RGB8 || internalFormat == GL_RGBA8 || - internalFormat == GL_BGRA; - - return st_ChooseTextureFormat_renderable(ctx, internalFormat, - format, type, want_renderable); -} - -/** - * Test if a gallium format is equivalent to a GL format/type. - */ -GLboolean -st_equal_formats(enum pipe_format pFormat, GLenum format, GLenum type) -{ - switch (pFormat) { - case PIPE_FORMAT_A8B8G8R8_UNORM: - return format == GL_RGBA && type == GL_UNSIGNED_BYTE; - case PIPE_FORMAT_A8R8G8B8_UNORM: - return format == GL_BGRA && type == GL_UNSIGNED_BYTE; - case PIPE_FORMAT_B5G6R5_UNORM: - return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5; - /* XXX more combos... */ - default: - return GL_FALSE; - } -} - -GLboolean -st_sampler_compat_formats(enum pipe_format format1, enum pipe_format format2) -{ - if (format1 == format2) - return GL_TRUE; - - if (format1 == PIPE_FORMAT_B8G8R8A8_UNORM && - format2 == PIPE_FORMAT_B8G8R8X8_UNORM) - return GL_TRUE; - - if (format1 == PIPE_FORMAT_B8G8R8X8_UNORM && - format2 == PIPE_FORMAT_B8G8R8A8_UNORM) - return GL_TRUE; - - if (format1 == PIPE_FORMAT_A8B8G8R8_UNORM && - format2 == PIPE_FORMAT_X8B8G8R8_UNORM) - return GL_TRUE; - - if (format1 == PIPE_FORMAT_X8B8G8R8_UNORM && - format2 == PIPE_FORMAT_A8B8G8R8_UNORM) - return GL_TRUE; - - if (format1 == PIPE_FORMAT_A8R8G8B8_UNORM && - format2 == PIPE_FORMAT_X8R8G8B8_UNORM) - return GL_TRUE; - - if (format1 == PIPE_FORMAT_X8R8G8B8_UNORM && - format2 == PIPE_FORMAT_A8R8G8B8_UNORM) - return GL_TRUE; - - return GL_FALSE; -} - - - -/** - * This is used for translating texture border color and the clear - * color. For example, the clear color is interpreted according to - * the renderbuffer's base format. For example, if clearing a - * GL_LUMINANCE buffer, ClearColor[0] = luminance and ClearColor[1] = - * alpha. Similarly for texture border colors. - */ -void -st_translate_color(const GLfloat colorIn[4], GLenum baseFormat, - GLfloat colorOut[4]) -{ - switch (baseFormat) { - case GL_RED: - colorOut[0] = colorIn[0]; - colorOut[1] = 0.0F; - colorOut[2] = 0.0F; - colorOut[3] = 1.0F; - break; - case GL_RG: - colorOut[0] = colorIn[0]; - colorOut[1] = colorIn[1]; - colorOut[2] = 0.0F; - colorOut[3] = 1.0F; - break; - case GL_RGB: - colorOut[0] = colorIn[0]; - colorOut[1] = colorIn[1]; - colorOut[2] = colorIn[2]; - colorOut[3] = 1.0F; - break; - case GL_ALPHA: - colorOut[0] = colorOut[1] = colorOut[2] = 0.0; - colorOut[3] = colorIn[3]; - break; - case GL_LUMINANCE: - colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0]; - colorOut[3] = 1.0; - break; - case GL_LUMINANCE_ALPHA: - colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0]; - colorOut[3] = colorIn[3]; - break; - case GL_INTENSITY: - colorOut[0] = colorOut[1] = colorOut[2] = colorOut[3] = colorIn[0]; - break; - default: - COPY_4V(colorOut, colorIn); - } -} +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * Copyright (c) 2008-2010 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +/** + * Mesa / Gallium format conversion and format selection code. + * \author Brian Paul + */ + +#include "main/imports.h" +#include "main/context.h" +#include "main/texstore.h" +#include "main/image.h" +#include "main/macros.h" +#include "main/mfeatures.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_screen.h" +#include "util/u_format.h" +#include "st_context.h" +#include "st_format.h" + + +static GLuint +format_max_bits(enum pipe_format format) +{ + GLuint size = util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 0); + + size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 1)); + size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 2)); + size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 3)); + size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0)); + size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1)); + return size; +} + + +/** + * Return basic GL datatype for the given gallium format. + */ +GLenum +st_format_datatype(enum pipe_format format) +{ + const struct util_format_description *desc; + + desc = util_format_description(format); + assert(desc); + + if (desc->layout == UTIL_FORMAT_LAYOUT_PLAIN) { + if (format == PIPE_FORMAT_B5G5R5A1_UNORM || + format == PIPE_FORMAT_B5G6R5_UNORM) { + return GL_UNSIGNED_SHORT; + } + else if (format == PIPE_FORMAT_Z24_UNORM_S8_USCALED || + format == PIPE_FORMAT_S8_USCALED_Z24_UNORM || + format == PIPE_FORMAT_Z24X8_UNORM || + format == PIPE_FORMAT_X8Z24_UNORM) { + return GL_UNSIGNED_INT_24_8; + } + else { + const GLuint size = format_max_bits(format); + if (size == 8) { + if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED) + return GL_UNSIGNED_BYTE; + else + return GL_BYTE; + } + else if (size == 16) { + if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED) + return GL_UNSIGNED_SHORT; + else + return GL_SHORT; + } + else { + assert( size <= 32 ); + if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED) + return GL_UNSIGNED_INT; + else + return GL_INT; + } + } + } + else if (format == PIPE_FORMAT_UYVY) { + return GL_UNSIGNED_SHORT; + } + else if (format == PIPE_FORMAT_YUYV) { + return GL_UNSIGNED_SHORT; + } + else { + /* probably a compressed format, unsupported anyway */ + return GL_NONE; + } +} + + +/** + * Translate Mesa format to Gallium format. + */ +enum pipe_format +st_mesa_format_to_pipe_format(gl_format mesaFormat) +{ + switch (mesaFormat) { + case MESA_FORMAT_RGBA8888: + return PIPE_FORMAT_A8B8G8R8_UNORM; + case MESA_FORMAT_RGBA8888_REV: + return PIPE_FORMAT_R8G8B8A8_UNORM; + case MESA_FORMAT_ARGB8888: + return PIPE_FORMAT_B8G8R8A8_UNORM; + case MESA_FORMAT_ARGB8888_REV: + return PIPE_FORMAT_A8R8G8B8_UNORM; + case MESA_FORMAT_XRGB8888: + return PIPE_FORMAT_B8G8R8X8_UNORM; + case MESA_FORMAT_XRGB8888_REV: + return PIPE_FORMAT_X8R8G8B8_UNORM; + case MESA_FORMAT_ARGB1555: + return PIPE_FORMAT_B5G5R5A1_UNORM; + case MESA_FORMAT_ARGB4444: + return PIPE_FORMAT_B4G4R4A4_UNORM; + case MESA_FORMAT_RGB565: + return PIPE_FORMAT_B5G6R5_UNORM; + case MESA_FORMAT_RGB332: + return PIPE_FORMAT_B2G3R3_UNORM; + case MESA_FORMAT_ARGB2101010: + return PIPE_FORMAT_B10G10R10A2_UNORM; + case MESA_FORMAT_AL44: + return PIPE_FORMAT_L4A4_UNORM; + case MESA_FORMAT_AL88: + return PIPE_FORMAT_L8A8_UNORM; + case MESA_FORMAT_AL1616: + return PIPE_FORMAT_L16A16_UNORM; + case MESA_FORMAT_A8: + return PIPE_FORMAT_A8_UNORM; + case MESA_FORMAT_A16: + return PIPE_FORMAT_A16_UNORM; + case MESA_FORMAT_L8: + return PIPE_FORMAT_L8_UNORM; + case MESA_FORMAT_L16: + return PIPE_FORMAT_L16_UNORM; + case MESA_FORMAT_I8: + return PIPE_FORMAT_I8_UNORM; + case MESA_FORMAT_I16: + return PIPE_FORMAT_I16_UNORM; + case MESA_FORMAT_Z16: + return PIPE_FORMAT_Z16_UNORM; + case MESA_FORMAT_Z32: + return PIPE_FORMAT_Z32_UNORM; + case MESA_FORMAT_Z24_S8: + return PIPE_FORMAT_S8_USCALED_Z24_UNORM; + case MESA_FORMAT_S8_Z24: + return PIPE_FORMAT_Z24_UNORM_S8_USCALED; + case MESA_FORMAT_Z24_X8: + return PIPE_FORMAT_X8Z24_UNORM; + case MESA_FORMAT_X8_Z24: + return PIPE_FORMAT_Z24X8_UNORM; + case MESA_FORMAT_S8: + return PIPE_FORMAT_S8_USCALED; + case MESA_FORMAT_YCBCR: + return PIPE_FORMAT_UYVY; +#if FEATURE_texture_s3tc + case MESA_FORMAT_RGB_DXT1: + return PIPE_FORMAT_DXT1_RGB; + case MESA_FORMAT_RGBA_DXT1: + return PIPE_FORMAT_DXT1_RGBA; + case MESA_FORMAT_RGBA_DXT3: + return PIPE_FORMAT_DXT3_RGBA; + case MESA_FORMAT_RGBA_DXT5: + return PIPE_FORMAT_DXT5_RGBA; +#if FEATURE_EXT_texture_sRGB + case MESA_FORMAT_SRGB_DXT1: + return PIPE_FORMAT_DXT1_SRGB; + case MESA_FORMAT_SRGBA_DXT1: + return PIPE_FORMAT_DXT1_SRGBA; + case MESA_FORMAT_SRGBA_DXT3: + return PIPE_FORMAT_DXT3_SRGBA; + case MESA_FORMAT_SRGBA_DXT5: + return PIPE_FORMAT_DXT5_SRGBA; +#endif +#endif +#if FEATURE_EXT_texture_sRGB + case MESA_FORMAT_SLA8: + return PIPE_FORMAT_L8A8_SRGB; + case MESA_FORMAT_SL8: + return PIPE_FORMAT_L8_SRGB; + case MESA_FORMAT_SRGB8: + return PIPE_FORMAT_R8G8B8_SRGB; + case MESA_FORMAT_SRGBA8: + return PIPE_FORMAT_A8B8G8R8_SRGB; + case MESA_FORMAT_SARGB8: + return PIPE_FORMAT_B8G8R8A8_SRGB; +#endif + case MESA_FORMAT_R8: + return PIPE_FORMAT_R8_UNORM; + case MESA_FORMAT_R16: + return PIPE_FORMAT_R16_UNORM; + case MESA_FORMAT_RG88: + return PIPE_FORMAT_R8G8_UNORM; + case MESA_FORMAT_RG1616: + return PIPE_FORMAT_R16G16_UNORM; + case MESA_FORMAT_RGBA_16: + return PIPE_FORMAT_R16G16B16A16_UNORM; + + /* signed int formats */ + case MESA_FORMAT_RGBA_INT8: + return PIPE_FORMAT_R8G8B8A8_SSCALED; + case MESA_FORMAT_RGBA_INT16: + return PIPE_FORMAT_R16G16B16A16_SSCALED; + case MESA_FORMAT_RGBA_INT32: + return PIPE_FORMAT_R32G32B32A32_SSCALED; + + /* unsigned int formats */ + case MESA_FORMAT_RGBA_UINT8: + return PIPE_FORMAT_R8G8B8A8_USCALED; + case MESA_FORMAT_RGBA_UINT16: + return PIPE_FORMAT_R16G16B16A16_USCALED; + case MESA_FORMAT_RGBA_UINT32: + return PIPE_FORMAT_R32G32B32A32_USCALED; + + case MESA_FORMAT_RED_RGTC1: + return PIPE_FORMAT_RGTC1_UNORM; + case MESA_FORMAT_SIGNED_RED_RGTC1: + return PIPE_FORMAT_RGTC1_SNORM; + case MESA_FORMAT_RG_RGTC2: + return PIPE_FORMAT_RGTC2_UNORM; + case MESA_FORMAT_SIGNED_RG_RGTC2: + return PIPE_FORMAT_RGTC2_SNORM; + + case MESA_FORMAT_L_LATC1: + return PIPE_FORMAT_LATC1_UNORM; + case MESA_FORMAT_SIGNED_L_LATC1: + return PIPE_FORMAT_LATC1_SNORM; + case MESA_FORMAT_LA_LATC2: + return PIPE_FORMAT_LATC2_UNORM; + case MESA_FORMAT_SIGNED_LA_LATC2: + return PIPE_FORMAT_LATC2_SNORM; + + default: + assert(0); + return PIPE_FORMAT_NONE; + } +} + + +/** + * Translate Gallium format to Mesa format. + */ +gl_format +st_pipe_format_to_mesa_format(enum pipe_format format) +{ + switch (format) { + case PIPE_FORMAT_A8B8G8R8_UNORM: + return MESA_FORMAT_RGBA8888; + case PIPE_FORMAT_R8G8B8A8_UNORM: + return MESA_FORMAT_RGBA8888_REV; + case PIPE_FORMAT_B8G8R8A8_UNORM: + return MESA_FORMAT_ARGB8888; + case PIPE_FORMAT_A8R8G8B8_UNORM: + return MESA_FORMAT_ARGB8888_REV; + case PIPE_FORMAT_B8G8R8X8_UNORM: + return MESA_FORMAT_XRGB8888; + case PIPE_FORMAT_X8R8G8B8_UNORM: + return MESA_FORMAT_XRGB8888_REV; + case PIPE_FORMAT_B5G5R5A1_UNORM: + return MESA_FORMAT_ARGB1555; + case PIPE_FORMAT_B4G4R4A4_UNORM: + return MESA_FORMAT_ARGB4444; + case PIPE_FORMAT_B5G6R5_UNORM: + return MESA_FORMAT_RGB565; + case PIPE_FORMAT_B2G3R3_UNORM: + return MESA_FORMAT_RGB332; + case PIPE_FORMAT_B10G10R10A2_UNORM: + return MESA_FORMAT_ARGB2101010; + case PIPE_FORMAT_L4A4_UNORM: + return MESA_FORMAT_AL44; + case PIPE_FORMAT_L8A8_UNORM: + return MESA_FORMAT_AL88; + case PIPE_FORMAT_L16A16_UNORM: + return MESA_FORMAT_AL1616; + case PIPE_FORMAT_A8_UNORM: + return MESA_FORMAT_A8; + case PIPE_FORMAT_A16_UNORM: + return MESA_FORMAT_A16; + case PIPE_FORMAT_L8_UNORM: + return MESA_FORMAT_L8; + case PIPE_FORMAT_L16_UNORM: + return MESA_FORMAT_L16; + case PIPE_FORMAT_I8_UNORM: + return MESA_FORMAT_I8; + case PIPE_FORMAT_I16_UNORM: + return MESA_FORMAT_I16; + case PIPE_FORMAT_S8_USCALED: + return MESA_FORMAT_S8; + + case PIPE_FORMAT_R16G16B16A16_UNORM: + return MESA_FORMAT_RGBA_16; + case PIPE_FORMAT_R16G16B16A16_SNORM: + return MESA_FORMAT_SIGNED_RGBA_16; + + case PIPE_FORMAT_Z16_UNORM: + return MESA_FORMAT_Z16; + case PIPE_FORMAT_Z32_UNORM: + return MESA_FORMAT_Z32; + case PIPE_FORMAT_S8_USCALED_Z24_UNORM: + return MESA_FORMAT_Z24_S8; + case PIPE_FORMAT_X8Z24_UNORM: + return MESA_FORMAT_Z24_X8; + case PIPE_FORMAT_Z24X8_UNORM: + return MESA_FORMAT_X8_Z24; + case PIPE_FORMAT_Z24_UNORM_S8_USCALED: + return MESA_FORMAT_S8_Z24; + + case PIPE_FORMAT_UYVY: + return MESA_FORMAT_YCBCR; + case PIPE_FORMAT_YUYV: + return MESA_FORMAT_YCBCR_REV; + +#if FEATURE_texture_s3tc + case PIPE_FORMAT_DXT1_RGB: + return MESA_FORMAT_RGB_DXT1; + case PIPE_FORMAT_DXT1_RGBA: + return MESA_FORMAT_RGBA_DXT1; + case PIPE_FORMAT_DXT3_RGBA: + return MESA_FORMAT_RGBA_DXT3; + case PIPE_FORMAT_DXT5_RGBA: + return MESA_FORMAT_RGBA_DXT5; +#if FEATURE_EXT_texture_sRGB + case PIPE_FORMAT_DXT1_SRGB: + return MESA_FORMAT_SRGB_DXT1; + case PIPE_FORMAT_DXT1_SRGBA: + return MESA_FORMAT_SRGBA_DXT1; + case PIPE_FORMAT_DXT3_SRGBA: + return MESA_FORMAT_SRGBA_DXT3; + case PIPE_FORMAT_DXT5_SRGBA: + return MESA_FORMAT_SRGBA_DXT5; +#endif +#endif + +#if FEATURE_EXT_texture_sRGB + case PIPE_FORMAT_L8A8_SRGB: + return MESA_FORMAT_SLA8; + case PIPE_FORMAT_L8_SRGB: + return MESA_FORMAT_SL8; + case PIPE_FORMAT_R8G8B8_SRGB: + return MESA_FORMAT_SRGB8; + case PIPE_FORMAT_A8B8G8R8_SRGB: + return MESA_FORMAT_SRGBA8; + case PIPE_FORMAT_B8G8R8A8_SRGB: + return MESA_FORMAT_SARGB8; +#endif + + case PIPE_FORMAT_R8_UNORM: + return MESA_FORMAT_R8; + case PIPE_FORMAT_R16_UNORM: + return MESA_FORMAT_R16; + case PIPE_FORMAT_R8G8_UNORM: + return MESA_FORMAT_RG88; + case PIPE_FORMAT_R16G16_UNORM: + return MESA_FORMAT_RG1616; + + /* signed int formats */ + case PIPE_FORMAT_R8G8B8A8_SSCALED: + return MESA_FORMAT_RGBA_INT8; + case PIPE_FORMAT_R16G16B16A16_SSCALED: + return MESA_FORMAT_RGBA_INT16; + case PIPE_FORMAT_R32G32B32A32_SSCALED: + return MESA_FORMAT_RGBA_INT32; + + /* unsigned int formats */ + case PIPE_FORMAT_R8G8B8A8_USCALED: + return MESA_FORMAT_RGBA_UINT8; + case PIPE_FORMAT_R16G16B16A16_USCALED: + return MESA_FORMAT_RGBA_UINT16; + case PIPE_FORMAT_R32G32B32A32_USCALED: + return MESA_FORMAT_RGBA_UINT32; + + case PIPE_FORMAT_RGTC1_UNORM: + return MESA_FORMAT_RED_RGTC1; + case PIPE_FORMAT_RGTC1_SNORM: + return MESA_FORMAT_SIGNED_RED_RGTC1; + case PIPE_FORMAT_RGTC2_UNORM: + return MESA_FORMAT_RG_RGTC2; + case PIPE_FORMAT_RGTC2_SNORM: + return MESA_FORMAT_SIGNED_RG_RGTC2; + + case PIPE_FORMAT_LATC1_UNORM: + return MESA_FORMAT_L_LATC1; + case PIPE_FORMAT_LATC1_SNORM: + return MESA_FORMAT_SIGNED_L_LATC1; + case PIPE_FORMAT_LATC2_UNORM: + return MESA_FORMAT_LA_LATC2; + case PIPE_FORMAT_LATC2_SNORM: + return MESA_FORMAT_SIGNED_LA_LATC2; + + default: + assert(0); + return MESA_FORMAT_NONE; + } +} + + +/** + * Return first supported format from the given list. + */ +static enum pipe_format +find_supported_format(struct pipe_screen *screen, + const enum pipe_format formats[], + uint num_formats, + enum pipe_texture_target target, + unsigned sample_count, + unsigned tex_usage) +{ + uint i; + for (i = 0; i < num_formats; i++) { + if (screen->is_format_supported(screen, formats[i], target, + sample_count, tex_usage)) { + return formats[i]; + } + } + return PIPE_FORMAT_NONE; +} + + +/** + * Find an RGBA format supported by the context/winsys. + */ +static enum pipe_format +default_rgba_format(struct pipe_screen *screen, + enum pipe_texture_target target, + unsigned sample_count, + unsigned tex_usage) +{ + static const enum pipe_format colorFormats[] = { + PIPE_FORMAT_B8G8R8A8_UNORM, + PIPE_FORMAT_A8R8G8B8_UNORM, + PIPE_FORMAT_A8B8G8R8_UNORM, + PIPE_FORMAT_B5G6R5_UNORM + }; + return find_supported_format(screen, colorFormats, Elements(colorFormats), + target, sample_count, tex_usage); +} + + +/** + * Find an RGB format supported by the context/winsys. + */ +static enum pipe_format +default_rgb_format(struct pipe_screen *screen, + enum pipe_texture_target target, + unsigned sample_count, + unsigned tex_usage) +{ + static const enum pipe_format colorFormats[] = { + PIPE_FORMAT_B8G8R8X8_UNORM, + PIPE_FORMAT_X8R8G8B8_UNORM, + PIPE_FORMAT_X8B8G8R8_UNORM, + PIPE_FORMAT_B8G8R8A8_UNORM, + PIPE_FORMAT_A8R8G8B8_UNORM, + PIPE_FORMAT_A8B8G8R8_UNORM, + PIPE_FORMAT_B5G6R5_UNORM + }; + return find_supported_format(screen, colorFormats, Elements(colorFormats), + target, sample_count, tex_usage); +} + +/** + * Find an sRGBA format supported by the context/winsys. + */ +static enum pipe_format +default_srgba_format(struct pipe_screen *screen, + enum pipe_texture_target target, + unsigned sample_count, + unsigned tex_usage) +{ + static const enum pipe_format colorFormats[] = { + PIPE_FORMAT_B8G8R8A8_SRGB, + PIPE_FORMAT_A8R8G8B8_SRGB, + PIPE_FORMAT_A8B8G8R8_SRGB, + }; + return find_supported_format(screen, colorFormats, Elements(colorFormats), + target, sample_count, tex_usage); +} + + +/** + * Given an OpenGL internalFormat value for a texture or surface, return + * the best matching PIPE_FORMAT_x, or PIPE_FORMAT_NONE if there's no match. + * This is called during glTexImage2D, for example. + * + * The bindings parameter typically has PIPE_BIND_SAMPLER_VIEW set, plus + * either PIPE_BINDING_RENDER_TARGET or PIPE_BINDING_DEPTH_STENCIL if + * we want render-to-texture ability. + * + * \param internalFormat the user value passed to glTexImage2D + * \param target one of PIPE_TEXTURE_x + * \param bindings bitmask of PIPE_BIND_x flags. + */ +enum pipe_format +st_choose_format(struct pipe_screen *screen, GLenum internalFormat, + enum pipe_texture_target target, unsigned sample_count, + unsigned bindings) +{ + + switch (internalFormat) { + case GL_RGB10: + case GL_RGB10_A2: + if (screen->is_format_supported( screen, PIPE_FORMAT_B10G10R10A2_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_B10G10R10A2_UNORM; + /* Pass through. */ + case 4: + case GL_RGBA: + case GL_RGBA8: + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_BGRA: + if (screen->is_format_supported( screen, PIPE_FORMAT_B8G8R8A8_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_B8G8R8A8_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case 3: + case GL_RGB: + case GL_RGB8: + return default_rgb_format( screen, target, sample_count, bindings); + + case GL_RGB12: + case GL_RGB16: + case GL_RGBA12: + case GL_RGBA16: + if (screen->is_format_supported( screen, PIPE_FORMAT_R16G16B16A16_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_R16G16B16A16_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_RGBA4: + case GL_RGBA2: + if (screen->is_format_supported( screen, PIPE_FORMAT_B4G4R4A4_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_B4G4R4A4_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_RGB5_A1: + if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_B5G5R5A1_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_R3_G3_B2: + if (screen->is_format_supported( screen, PIPE_FORMAT_B2G3R3_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_B2G3R3_UNORM; + /* Pass through. */ + case GL_RGB5: + case GL_RGB4: + if (screen->is_format_supported( screen, PIPE_FORMAT_B5G6R5_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_B5G6R5_UNORM; + if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_B5G5R5A1_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_ALPHA12: + case GL_ALPHA16: + if (screen->is_format_supported( screen, PIPE_FORMAT_A16_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_A16_UNORM; + /* Pass through. */ + case GL_ALPHA: + case GL_ALPHA4: + case GL_ALPHA8: + case GL_COMPRESSED_ALPHA: + if (screen->is_format_supported( screen, PIPE_FORMAT_A8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_A8_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_LUMINANCE12: + case GL_LUMINANCE16: + if (screen->is_format_supported( screen, PIPE_FORMAT_L16_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L16_UNORM; + /* Pass through. */ + case 1: + case GL_LUMINANCE: + case GL_LUMINANCE4: + case GL_LUMINANCE8: + if (screen->is_format_supported( screen, PIPE_FORMAT_L8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L8_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_LUMINANCE12_ALPHA4: + case GL_LUMINANCE12_ALPHA12: + case GL_LUMINANCE16_ALPHA16: + if (screen->is_format_supported( screen, PIPE_FORMAT_L16A16_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L16A16_UNORM; + /* Pass through. */ + case 2: + case GL_LUMINANCE_ALPHA: + case GL_LUMINANCE6_ALPHA2: + case GL_LUMINANCE8_ALPHA8: + if (screen->is_format_supported( screen, PIPE_FORMAT_L8A8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L8A8_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_LUMINANCE4_ALPHA4: + if (screen->is_format_supported( screen, PIPE_FORMAT_L4A4_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L4A4_UNORM; + if (screen->is_format_supported( screen, PIPE_FORMAT_L8A8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L8A8_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_INTENSITY12: + case GL_INTENSITY16: + if (screen->is_format_supported( screen, PIPE_FORMAT_I16_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_I16_UNORM; + /* Pass through. */ + case GL_INTENSITY: + case GL_INTENSITY4: + case GL_INTENSITY8: + case GL_COMPRESSED_INTENSITY: + if (screen->is_format_supported( screen, PIPE_FORMAT_I8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_I8_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_YCBCR_MESA: + if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY, target, + sample_count, bindings)) { + return PIPE_FORMAT_UYVY; + } + if (screen->is_format_supported(screen, PIPE_FORMAT_YUYV, target, + sample_count, bindings)) { + return PIPE_FORMAT_YUYV; + } + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_RGB: + /* can only sample from compressed formats */ + if (bindings & ~PIPE_BIND_SAMPLER_VIEW) + return PIPE_FORMAT_NONE; + else if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGB, + target, sample_count, bindings)) + return PIPE_FORMAT_DXT1_RGB; + else + return default_rgb_format(screen, target, sample_count, bindings); + + case GL_COMPRESSED_RGBA: + /* can only sample from compressed formats */ + if (bindings & ~PIPE_BIND_SAMPLER_VIEW) + return PIPE_FORMAT_NONE; + else if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_RGBA, + target, sample_count, bindings)) + return PIPE_FORMAT_DXT3_RGBA; + else + return default_rgba_format(screen, target, sample_count, bindings); + + case GL_RGB_S3TC: + case GL_RGB4_S3TC: + case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGB, + target, sample_count, bindings)) + return PIPE_FORMAT_DXT1_RGB; + else + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGBA, + target, sample_count, bindings)) + return PIPE_FORMAT_DXT1_RGBA; + else + return PIPE_FORMAT_NONE; + + case GL_RGBA_S3TC: + case GL_RGBA4_S3TC: + case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_RGBA, + target, sample_count, bindings)) + return PIPE_FORMAT_DXT3_RGBA; + else + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA, + target, sample_count, bindings)) + return PIPE_FORMAT_DXT5_RGBA; + else + return PIPE_FORMAT_NONE; + +#if 0 + case GL_COMPRESSED_RGB_FXT1_3DFX: + return PIPE_FORMAT_RGB_FXT1; + case GL_COMPRESSED_RGBA_FXT1_3DFX: + return PIPE_FORMAT_RGB_FXT1; +#endif + + case GL_DEPTH_COMPONENT16: + if (screen->is_format_supported(screen, PIPE_FORMAT_Z16_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_Z16_UNORM; + /* fall-through */ + case GL_DEPTH_COMPONENT24: + if (screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED, + target, sample_count, bindings)) + return PIPE_FORMAT_Z24_UNORM_S8_USCALED; + if (screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_S8_USCALED_Z24_UNORM; + /* fall-through */ + case GL_DEPTH_COMPONENT32: + if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_Z32_UNORM; + /* fall-through */ + case GL_DEPTH_COMPONENT: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_Z32_UNORM, + PIPE_FORMAT_Z24_UNORM_S8_USCALED, + PIPE_FORMAT_S8_USCALED_Z24_UNORM, + PIPE_FORMAT_Z16_UNORM + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_STENCIL_INDEX: + case GL_STENCIL_INDEX1_EXT: + case GL_STENCIL_INDEX4_EXT: + case GL_STENCIL_INDEX8_EXT: + case GL_STENCIL_INDEX16_EXT: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_S8_USCALED, + PIPE_FORMAT_Z24_UNORM_S8_USCALED, + PIPE_FORMAT_S8_USCALED_Z24_UNORM + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_DEPTH_STENCIL_EXT: + case GL_DEPTH24_STENCIL8_EXT: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_Z24_UNORM_S8_USCALED, + PIPE_FORMAT_S8_USCALED_Z24_UNORM + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_SRGB_EXT: + case GL_SRGB8_EXT: + case GL_SRGB_ALPHA_EXT: + case GL_SRGB8_ALPHA8_EXT: + return default_srgba_format( screen, target, sample_count, bindings); + + case GL_COMPRESSED_SRGB_EXT: + case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_SRGB, target, + sample_count, bindings)) + return PIPE_FORMAT_DXT1_SRGB; + return default_srgba_format( screen, target, sample_count, bindings); + + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: + return PIPE_FORMAT_DXT1_SRGBA; + + case GL_COMPRESSED_SRGB_ALPHA_EXT: + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_SRGBA, target, + sample_count, bindings)) + return PIPE_FORMAT_DXT3_SRGBA; + return default_srgba_format( screen, target, sample_count, bindings); + + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: + return PIPE_FORMAT_DXT5_SRGBA; + + case GL_SLUMINANCE_ALPHA_EXT: + case GL_SLUMINANCE8_ALPHA8_EXT: + case GL_COMPRESSED_SLUMINANCE_EXT: + case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_L8A8_SRGB, target, + sample_count, bindings)) + return PIPE_FORMAT_L8A8_SRGB; + return default_srgba_format( screen, target, sample_count, bindings); + + case GL_SLUMINANCE_EXT: + case GL_SLUMINANCE8_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_L8_SRGB, target, + sample_count, bindings)) + return PIPE_FORMAT_L8_SRGB; + return default_srgba_format( screen, target, sample_count, bindings); + + case GL_RED: + case GL_R8: + if (screen->is_format_supported(screen, PIPE_FORMAT_R8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_R8_UNORM; + return PIPE_FORMAT_NONE; + case GL_RG: + case GL_RG8: + if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_R8G8_UNORM; + return PIPE_FORMAT_NONE; + + case GL_R16: + if (screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_R16_UNORM; + return PIPE_FORMAT_NONE; + + case GL_RG16: + if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_R16G16_UNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_RED: + case GL_COMPRESSED_RED_RGTC1: + if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_RGTC1_UNORM; + if (screen->is_format_supported(screen, PIPE_FORMAT_R8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_R8_UNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_SIGNED_RED_RGTC1: + if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_SNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_RGTC1_SNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_RG: + case GL_COMPRESSED_RG_RGTC2: + if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_RGTC2_UNORM; + if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_R8G8_UNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_SIGNED_RG_RGTC2: + if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_SNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_RGTC2_SNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_LUMINANCE: + case GL_COMPRESSED_LUMINANCE_LATC1_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_LATC1_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_LATC1_UNORM; + if (screen->is_format_supported(screen, PIPE_FORMAT_L8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L8_UNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_LATC1_SNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_LATC1_SNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_LUMINANCE_ALPHA: + case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: + case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: + if (screen->is_format_supported(screen, PIPE_FORMAT_LATC2_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_LATC2_UNORM; + if (screen->is_format_supported(screen, PIPE_FORMAT_L8A8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L8A8_UNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_LATC2_SNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_LATC2_SNORM; + return PIPE_FORMAT_NONE; + + /* signed/unsigned integer formats. + * XXX Mesa only has formats for RGBA signed/unsigned integer formats. + * If/when new formats are added this code should be updated. + */ + case GL_RED_INTEGER_EXT: + case GL_GREEN_INTEGER_EXT: + case GL_BLUE_INTEGER_EXT: + case GL_ALPHA_INTEGER_EXT: + case GL_RGB_INTEGER_EXT: + case GL_RGBA_INTEGER_EXT: + case GL_BGR_INTEGER_EXT: + case GL_BGRA_INTEGER_EXT: + case GL_LUMINANCE_INTEGER_EXT: + case GL_LUMINANCE_ALPHA_INTEGER_EXT: + /* fall-through */ + case GL_RGBA8I_EXT: + case GL_RGB8I_EXT: + case GL_ALPHA8I_EXT: + case GL_INTENSITY8I_EXT: + case GL_LUMINANCE8I_EXT: + case GL_LUMINANCE_ALPHA8I_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SSCALED, + target, + sample_count, bindings)) + return PIPE_FORMAT_R8G8B8A8_SSCALED; + return PIPE_FORMAT_NONE; + case GL_RGBA16I_EXT: + case GL_RGB16I_EXT: + case GL_ALPHA16I_EXT: + case GL_INTENSITY16I_EXT: + case GL_LUMINANCE16I_EXT: + case GL_LUMINANCE_ALPHA16I_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_SSCALED, + target, + sample_count, bindings)) + return PIPE_FORMAT_R16G16B16A16_SSCALED; + return PIPE_FORMAT_NONE; + case GL_RGBA32I_EXT: + case GL_RGB32I_EXT: + case GL_ALPHA32I_EXT: + case GL_INTENSITY32I_EXT: + case GL_LUMINANCE32I_EXT: + case GL_LUMINANCE_ALPHA32I_EXT: + /* xxx */ + if (screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_SSCALED, + target, + sample_count, bindings)) + return PIPE_FORMAT_R32G32B32A32_SSCALED; + return PIPE_FORMAT_NONE; + + case GL_RGBA8UI_EXT: + case GL_RGB8UI_EXT: + case GL_ALPHA8UI_EXT: + case GL_INTENSITY8UI_EXT: + case GL_LUMINANCE8UI_EXT: + case GL_LUMINANCE_ALPHA8UI_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_USCALED, + target, + sample_count, bindings)) + return PIPE_FORMAT_R8G8B8A8_USCALED; + return PIPE_FORMAT_NONE; + + case GL_RGBA16UI_EXT: + case GL_RGB16UI_EXT: + case GL_ALPHA16UI_EXT: + case GL_INTENSITY16UI_EXT: + case GL_LUMINANCE16UI_EXT: + case GL_LUMINANCE_ALPHA16UI_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_USCALED, + target, + sample_count, bindings)) + return PIPE_FORMAT_R16G16B16A16_USCALED; + return PIPE_FORMAT_NONE; + + case GL_RGBA32UI_EXT: + case GL_RGB32UI_EXT: + case GL_ALPHA32UI_EXT: + case GL_INTENSITY32UI_EXT: + case GL_LUMINANCE32UI_EXT: + case GL_LUMINANCE_ALPHA32UI_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_USCALED, + target, + sample_count, bindings)) + return PIPE_FORMAT_R32G32B32A32_USCALED; + return PIPE_FORMAT_NONE; + + default: + return PIPE_FORMAT_NONE; + } +} + + +/** + * Called by FBO code to choose a PIPE_FORMAT_ for drawing surfaces. + */ +enum pipe_format +st_choose_renderbuffer_format(struct pipe_screen *screen, + GLenum internalFormat, unsigned sample_count) +{ + uint usage; + if (_mesa_is_depth_or_stencil_format(internalFormat)) + usage = PIPE_BIND_DEPTH_STENCIL; + else + usage = PIPE_BIND_RENDER_TARGET; + return st_choose_format(screen, internalFormat, PIPE_TEXTURE_2D, + sample_count, usage); +} + + +/** + * Called via ctx->Driver.chooseTextureFormat(). + */ +gl_format +st_ChooseTextureFormat_renderable(struct gl_context *ctx, GLint internalFormat, + GLenum format, GLenum type, GLboolean renderable) +{ + struct pipe_screen *screen = st_context(ctx)->pipe->screen; + enum pipe_format pFormat; + uint bindings; + + (void) format; + (void) type; + + /* GL textures may wind up being render targets, but we don't know + * that in advance. Specify potential render target flags now. + */ + bindings = PIPE_BIND_SAMPLER_VIEW; + if (renderable == GL_TRUE) { + if (_mesa_is_depth_format(internalFormat) || + _mesa_is_depth_or_stencil_format(internalFormat)) + bindings |= PIPE_BIND_DEPTH_STENCIL; + else + bindings |= PIPE_BIND_RENDER_TARGET; + } + + pFormat = st_choose_format(screen, internalFormat, + PIPE_TEXTURE_2D, 0, bindings); + + if (pFormat == PIPE_FORMAT_NONE) { + /* try choosing format again, this time without render target bindings */ + pFormat = st_choose_format(screen, internalFormat, + PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW); + } + + if (pFormat == PIPE_FORMAT_NONE) { + /* no luck at all */ + return MESA_FORMAT_NONE; + } + + return st_pipe_format_to_mesa_format(pFormat); +} + +gl_format +st_ChooseTextureFormat(struct gl_context *ctx, GLint internalFormat, + GLenum format, GLenum type) +{ + boolean want_renderable = + internalFormat == 3 || internalFormat == 4 || + internalFormat == GL_RGB || internalFormat == GL_RGBA || + internalFormat == GL_RGB8 || internalFormat == GL_RGBA8 || + internalFormat == GL_BGRA; + + return st_ChooseTextureFormat_renderable(ctx, internalFormat, + format, type, want_renderable); +} + +/** + * Test if a gallium format is equivalent to a GL format/type. + */ +GLboolean +st_equal_formats(enum pipe_format pFormat, GLenum format, GLenum type) +{ + switch (pFormat) { + case PIPE_FORMAT_A8B8G8R8_UNORM: + return format == GL_RGBA && type == GL_UNSIGNED_BYTE; + case PIPE_FORMAT_A8R8G8B8_UNORM: + return format == GL_BGRA && type == GL_UNSIGNED_BYTE; + case PIPE_FORMAT_B5G6R5_UNORM: + return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5; + /* XXX more combos... */ + default: + return GL_FALSE; + } +} + +GLboolean +st_sampler_compat_formats(enum pipe_format format1, enum pipe_format format2) +{ + if (format1 == format2) + return GL_TRUE; + + if (format1 == PIPE_FORMAT_B8G8R8A8_UNORM && + format2 == PIPE_FORMAT_B8G8R8X8_UNORM) + return GL_TRUE; + + if (format1 == PIPE_FORMAT_B8G8R8X8_UNORM && + format2 == PIPE_FORMAT_B8G8R8A8_UNORM) + return GL_TRUE; + + if (format1 == PIPE_FORMAT_A8B8G8R8_UNORM && + format2 == PIPE_FORMAT_X8B8G8R8_UNORM) + return GL_TRUE; + + if (format1 == PIPE_FORMAT_X8B8G8R8_UNORM && + format2 == PIPE_FORMAT_A8B8G8R8_UNORM) + return GL_TRUE; + + if (format1 == PIPE_FORMAT_A8R8G8B8_UNORM && + format2 == PIPE_FORMAT_X8R8G8B8_UNORM) + return GL_TRUE; + + if (format1 == PIPE_FORMAT_X8R8G8B8_UNORM && + format2 == PIPE_FORMAT_A8R8G8B8_UNORM) + return GL_TRUE; + + return GL_FALSE; +} + + + +/** + * This is used for translating texture border color and the clear + * color. For example, the clear color is interpreted according to + * the renderbuffer's base format. For example, if clearing a + * GL_LUMINANCE buffer, ClearColor[0] = luminance and ClearColor[1] = + * alpha. Similarly for texture border colors. + */ +void +st_translate_color(const GLfloat colorIn[4], GLenum baseFormat, + GLfloat colorOut[4]) +{ + switch (baseFormat) { + case GL_RED: + colorOut[0] = colorIn[0]; + colorOut[1] = 0.0F; + colorOut[2] = 0.0F; + colorOut[3] = 1.0F; + break; + case GL_RG: + colorOut[0] = colorIn[0]; + colorOut[1] = colorIn[1]; + colorOut[2] = 0.0F; + colorOut[3] = 1.0F; + break; + case GL_RGB: + colorOut[0] = colorIn[0]; + colorOut[1] = colorIn[1]; + colorOut[2] = colorIn[2]; + colorOut[3] = 1.0F; + break; + case GL_ALPHA: + colorOut[0] = colorOut[1] = colorOut[2] = 0.0; + colorOut[3] = colorIn[3]; + break; + case GL_LUMINANCE: + colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0]; + colorOut[3] = 1.0; + break; + case GL_LUMINANCE_ALPHA: + colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0]; + colorOut[3] = colorIn[3]; + break; + case GL_INTENSITY: + colorOut[0] = colorOut[1] = colorOut[2] = colorOut[3] = colorIn[0]; + break; + default: + COPY_4V(colorOut, colorIn); + } +} diff --git a/mesalib/src/mesa/state_tracker/st_gen_mipmap.c b/mesalib/src/mesa/state_tracker/st_gen_mipmap.c index 899161e78..2c37c1107 100644 --- a/mesalib/src/mesa/state_tracker/st_gen_mipmap.c +++ b/mesalib/src/mesa/state_tracker/st_gen_mipmap.c @@ -1,451 +1,451 @@ -/************************************************************************** - * - * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - - -#include "main/imports.h" -#include "main/mipmap.h" -#include "main/teximage.h" - -#include "pipe/p_context.h" -#include "pipe/p_defines.h" -#include "util/u_inlines.h" -#include "util/u_format.h" -#include "util/u_gen_mipmap.h" - -#include "st_debug.h" -#include "st_context.h" -#include "st_texture.h" -#include "st_gen_mipmap.h" -#include "st_cb_texture.h" - - -/** - * one-time init for generate mipmap - * XXX Note: there may be other times we need no-op/simple state like this. - * In that case, some code refactoring would be good. - */ -void -st_init_generate_mipmap(struct st_context *st) -{ - st->gen_mipmap = util_create_gen_mipmap(st->pipe, st->cso_context); -} - - -void -st_destroy_generate_mipmap(struct st_context *st) -{ - util_destroy_gen_mipmap(st->gen_mipmap); - st->gen_mipmap = NULL; -} - - -/** - * Generate mipmap levels using hardware rendering. - * \return TRUE if successful, FALSE if not possible - */ -static boolean -st_render_mipmap(struct st_context *st, - GLenum target, - struct st_texture_object *stObj, - uint baseLevel, uint lastLevel) -{ - struct pipe_context *pipe = st->pipe; - struct pipe_screen *screen = pipe->screen; - struct pipe_sampler_view *psv = st_get_texture_sampler_view(stObj, pipe); - const uint face = _mesa_tex_target_to_face(target); - - assert(psv->texture == stObj->pt); -#if 0 - assert(target != GL_TEXTURE_3D); /* implemented but untested */ -#endif - - /* check if we can render in the texture's format */ - /* XXX should probably kill this and always use util_gen_mipmap - since this implements a sw fallback as well */ - if (!screen->is_format_supported(screen, psv->format, psv->texture->target, - 0, PIPE_BIND_RENDER_TARGET, 0)) { - return FALSE; - } - - util_gen_mipmap(st->gen_mipmap, psv, face, baseLevel, lastLevel, - PIPE_TEX_FILTER_LINEAR); - - return TRUE; -} - - -/** - * Helper function to decompress an image. The result is a 32-bpp RGBA - * image with stride==width. - */ -static void -decompress_image(enum pipe_format format, int datatype, - const uint8_t *src, void *dst, - unsigned width, unsigned height, unsigned src_stride) -{ - const struct util_format_description *desc = util_format_description(format); - const uint bw = util_format_get_blockwidth(format); - const uint bh = util_format_get_blockheight(format); - uint dst_stride = 4 * MAX2(width, bw); - - if (datatype == GL_FLOAT) { - desc->unpack_rgba_float((float *)dst, dst_stride * sizeof(GLfloat), src, src_stride, width, height); - if (width < bw || height < bh) { - float *dst_p = (float *)dst; - /* We're decompressing an image smaller than the compression - * block size. We don't want garbage pixel values in the region - * outside (width x height) so replicate pixels from the (width - * x height) region to fill out the (bw x bh) block size. - */ - uint x, y; - for (y = 0; y < bh; y++) { - for (x = 0; x < bw; x++) { - if (x >= width || y >= height) { - uint p = (y * bw + x) * 4; - dst_p[p + 0] = dst_p[0]; - dst_p[p + 1] = dst_p[1]; - dst_p[p + 2] = dst_p[2]; - dst_p[p + 3] = dst_p[3]; - } - } - } - } - } else { - desc->unpack_rgba_8unorm((uint8_t *)dst, dst_stride, src, src_stride, width, height); - if (width < bw || height < bh) { - uint8_t *dst_p = (uint8_t *)dst; - /* We're decompressing an image smaller than the compression - * block size. We don't want garbage pixel values in the region - * outside (width x height) so replicate pixels from the (width - * x height) region to fill out the (bw x bh) block size. - */ - uint x, y; - for (y = 0; y < bh; y++) { - for (x = 0; x < bw; x++) { - if (x >= width || y >= height) { - uint p = (y * bw + x) * 4; - dst_p[p + 0] = dst_p[0]; - dst_p[p + 1] = dst_p[1]; - dst_p[p + 2] = dst_p[2]; - dst_p[p + 3] = dst_p[3]; - } - } - } - } - } -} - -/** - * Helper function to compress an image. The source is a 32-bpp RGBA image - * with stride==width. - */ -static void -compress_image(enum pipe_format format, int datatype, - const void *src, uint8_t *dst, - unsigned width, unsigned height, unsigned dst_stride) -{ - const struct util_format_description *desc = util_format_description(format); - const uint src_stride = 4 * width; - - if (datatype == GL_FLOAT) - desc->pack_rgba_float(dst, dst_stride, (GLfloat *)src, src_stride * sizeof(GLfloat), width, height); - else - desc->pack_rgba_8unorm(dst, dst_stride, (uint8_t *)src, src_stride, width, height); -} - - -/** - * Software fallback for generate mipmap levels. - */ -static void -fallback_generate_mipmap(struct gl_context *ctx, GLenum target, - struct gl_texture_object *texObj) -{ - struct pipe_context *pipe = st_context(ctx)->pipe; - struct pipe_resource *pt = st_get_texobj_resource(texObj); - const uint baseLevel = texObj->BaseLevel; - const uint lastLevel = pt->last_level; - const uint face = _mesa_tex_target_to_face(target); - uint dstLevel; - GLenum datatype; - GLuint comps; - GLboolean compressed; - - if (ST_DEBUG & DEBUG_FALLBACK) - debug_printf("%s: fallback processing\n", __FUNCTION__); - - assert(target != GL_TEXTURE_3D); /* not done yet */ - - compressed = - _mesa_is_format_compressed(texObj->Image[face][baseLevel]->TexFormat); - - if (compressed) { - GLenum type = - _mesa_get_format_datatype(texObj->Image[face][baseLevel]->TexFormat); - - datatype = type == GL_UNSIGNED_NORMALIZED ? GL_UNSIGNED_BYTE : GL_FLOAT; - comps = 4; - } - else { - _mesa_format_to_type_and_comps(texObj->Image[face][baseLevel]->TexFormat, - &datatype, &comps); - assert(comps > 0 && "bad texture format in fallback_generate_mipmap()"); - } - - for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) { - const uint srcLevel = dstLevel - 1; - const uint srcWidth = u_minify(pt->width0, srcLevel); - const uint srcHeight = u_minify(pt->height0, srcLevel); - const uint srcDepth = u_minify(pt->depth0, srcLevel); - const uint dstWidth = u_minify(pt->width0, dstLevel); - const uint dstHeight = u_minify(pt->height0, dstLevel); - const uint dstDepth = u_minify(pt->depth0, dstLevel); - struct pipe_transfer *srcTrans, *dstTrans; - const ubyte *srcData; - ubyte *dstData; - int srcStride, dstStride; - - srcTrans = pipe_get_transfer(st_context(ctx)->pipe, pt, srcLevel, - face, - PIPE_TRANSFER_READ, 0, 0, - srcWidth, srcHeight); - - dstTrans = pipe_get_transfer(st_context(ctx)->pipe, pt, dstLevel, - face, - PIPE_TRANSFER_WRITE, 0, 0, - dstWidth, dstHeight); - - srcData = (ubyte *) pipe_transfer_map(pipe, srcTrans); - dstData = (ubyte *) pipe_transfer_map(pipe, dstTrans); - - srcStride = srcTrans->stride / util_format_get_blocksize(srcTrans->resource->format); - dstStride = dstTrans->stride / util_format_get_blocksize(dstTrans->resource->format); - - /* this cannot work correctly for 3d since it does - not respect layerStride. */ - if (compressed) { - const enum pipe_format format = pt->format; - const uint bw = util_format_get_blockwidth(format); - const uint bh = util_format_get_blockheight(format); - const uint srcWidth2 = align(srcWidth, bw); - const uint srcHeight2 = align(srcHeight, bh); - const uint dstWidth2 = align(dstWidth, bw); - const uint dstHeight2 = align(dstHeight, bh); - uint8_t *srcTemp, *dstTemp; - - assert(comps == 4); - - srcTemp = malloc(srcWidth2 * srcHeight2 * comps * (datatype == GL_FLOAT ? 4 : 1)); - dstTemp = malloc(dstWidth2 * dstHeight2 * comps * (datatype == GL_FLOAT ? 4 : 1)); - - /* decompress the src image: srcData -> srcTemp */ - decompress_image(format, datatype, srcData, srcTemp, srcWidth2, srcHeight2, srcTrans->stride); - - _mesa_generate_mipmap_level(target, datatype, comps, - 0 /*border*/, - srcWidth2, srcHeight2, srcDepth, - srcTemp, - srcWidth2, /* stride in texels */ - dstWidth2, dstHeight2, dstDepth, - dstTemp, - dstWidth2); /* stride in texels */ - - /* compress the new image: dstTemp -> dstData */ - compress_image(format, datatype, dstTemp, dstData, dstWidth2, dstHeight2, dstTrans->stride); - - free(srcTemp); - free(dstTemp); - } - else { - _mesa_generate_mipmap_level(target, datatype, comps, - 0 /*border*/, - srcWidth, srcHeight, srcDepth, - srcData, - srcStride, /* stride in texels */ - dstWidth, dstHeight, dstDepth, - dstData, - dstStride); /* stride in texels */ - } - - pipe_transfer_unmap(pipe, srcTrans); - pipe_transfer_unmap(pipe, dstTrans); - - pipe->transfer_destroy(pipe, srcTrans); - pipe->transfer_destroy(pipe, dstTrans); - } -} - - -/** - * Compute the expected number of mipmap levels in the texture given - * the width/height/depth of the base image and the GL_TEXTURE_BASE_LEVEL/ - * GL_TEXTURE_MAX_LEVEL settings. This will tell us how many mipmap - * levels should be generated. - */ -static GLuint -compute_num_levels(struct gl_context *ctx, - struct gl_texture_object *texObj, - GLenum target) -{ - if (target == GL_TEXTURE_RECTANGLE_ARB) { - return 1; - } - else { - const struct gl_texture_image *baseImage = - _mesa_get_tex_image(ctx, texObj, target, texObj->BaseLevel); - GLuint size, numLevels; - - size = MAX2(baseImage->Width2, baseImage->Height2); - size = MAX2(size, baseImage->Depth2); - - numLevels = texObj->BaseLevel; - - while (size > 0) { - numLevels++; - size >>= 1; - } - - numLevels = MIN2(numLevels, texObj->MaxLevel + 1); - - assert(numLevels >= 1); - - return numLevels; - } -} - - -/** - * Called via ctx->Driver.GenerateMipmap(). - */ -void -st_generate_mipmap(struct gl_context *ctx, GLenum target, - struct gl_texture_object *texObj) -{ - struct st_context *st = st_context(ctx); - struct st_texture_object *stObj = st_texture_object(texObj); - struct pipe_resource *pt = st_get_texobj_resource(texObj); - const uint baseLevel = texObj->BaseLevel; - uint lastLevel; - uint dstLevel; - - if (!pt) - return; - - /* not sure if this ultimately actually should work, - but we're not supporting multisampled textures yet. */ - assert(pt->nr_samples < 2); - - /* find expected last mipmap level to generate*/ - lastLevel = compute_num_levels(ctx, texObj, target) - 1; - - if (lastLevel == 0) - return; - - /* The texture isn't in a "complete" state yet so set the expected - * lastLevel here, since it won't get done in st_finalize_texture(). - */ - stObj->lastLevel = lastLevel; - - if (pt->last_level < lastLevel) { - /* The current gallium texture doesn't have space for all the - * mipmap levels we need to generate. So allocate a new texture. - */ - struct pipe_resource *oldTex = stObj->pt; - - /* create new texture with space for more levels */ - stObj->pt = st_texture_create(st, - oldTex->target, - oldTex->format, - lastLevel, - oldTex->width0, - oldTex->height0, - oldTex->depth0, - oldTex->array_size, - oldTex->bind); - - /* This will copy the old texture's base image into the new texture - * which we just allocated. - */ - st_finalize_texture(ctx, st->pipe, texObj); - - /* release the old tex (will likely be freed too) */ - pipe_resource_reference(&oldTex, NULL); - pipe_sampler_view_reference(&stObj->sampler_view, NULL); - } - else { - /* Make sure that the base texture image data is present in the - * texture buffer. - */ - st_finalize_texture(ctx, st->pipe, texObj); - } - - pt = stObj->pt; - - assert(pt->last_level >= lastLevel); - - /* Try to generate the mipmap by rendering/texturing. If that fails, - * use the software fallback. - */ - if (!st_render_mipmap(st, target, stObj, baseLevel, lastLevel)) { - /* since the util code actually also has a fallback, should - probably make it never fail and kill this */ - fallback_generate_mipmap(ctx, target, texObj); - } - - /* Fill in the Mesa gl_texture_image fields */ - for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) { - const uint srcLevel = dstLevel - 1; - const struct gl_texture_image *srcImage - = _mesa_get_tex_image(ctx, texObj, target, srcLevel); - struct gl_texture_image *dstImage; - struct st_texture_image *stImage; - uint dstWidth = u_minify(pt->width0, dstLevel); - uint dstHeight = u_minify(pt->height0, dstLevel); - uint dstDepth = u_minify(pt->depth0, dstLevel); - uint border = srcImage->Border; - - dstImage = _mesa_get_tex_image(ctx, texObj, target, dstLevel); - if (!dstImage) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps"); - return; - } - - /* Free old image data */ - if (dstImage->Data) - ctx->Driver.FreeTexImageData(ctx, dstImage); - - /* initialize new image */ - _mesa_init_teximage_fields(ctx, target, dstImage, dstWidth, dstHeight, - dstDepth, border, srcImage->InternalFormat, - srcImage->TexFormat); - - stImage = st_texture_image(dstImage); - stImage->level = dstLevel; - - pipe_resource_reference(&stImage->pt, pt); - } -} +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +#include "main/imports.h" +#include "main/mipmap.h" +#include "main/teximage.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "util/u_inlines.h" +#include "util/u_format.h" +#include "util/u_gen_mipmap.h" + +#include "st_debug.h" +#include "st_context.h" +#include "st_texture.h" +#include "st_gen_mipmap.h" +#include "st_cb_texture.h" + + +/** + * one-time init for generate mipmap + * XXX Note: there may be other times we need no-op/simple state like this. + * In that case, some code refactoring would be good. + */ +void +st_init_generate_mipmap(struct st_context *st) +{ + st->gen_mipmap = util_create_gen_mipmap(st->pipe, st->cso_context); +} + + +void +st_destroy_generate_mipmap(struct st_context *st) +{ + util_destroy_gen_mipmap(st->gen_mipmap); + st->gen_mipmap = NULL; +} + + +/** + * Generate mipmap levels using hardware rendering. + * \return TRUE if successful, FALSE if not possible + */ +static boolean +st_render_mipmap(struct st_context *st, + GLenum target, + struct st_texture_object *stObj, + uint baseLevel, uint lastLevel) +{ + struct pipe_context *pipe = st->pipe; + struct pipe_screen *screen = pipe->screen; + struct pipe_sampler_view *psv = st_get_texture_sampler_view(stObj, pipe); + const uint face = _mesa_tex_target_to_face(target); + + assert(psv->texture == stObj->pt); +#if 0 + assert(target != GL_TEXTURE_3D); /* implemented but untested */ +#endif + + /* check if we can render in the texture's format */ + /* XXX should probably kill this and always use util_gen_mipmap + since this implements a sw fallback as well */ + if (!screen->is_format_supported(screen, psv->format, psv->texture->target, + 0, PIPE_BIND_RENDER_TARGET)) { + return FALSE; + } + + util_gen_mipmap(st->gen_mipmap, psv, face, baseLevel, lastLevel, + PIPE_TEX_FILTER_LINEAR); + + return TRUE; +} + + +/** + * Helper function to decompress an image. The result is a 32-bpp RGBA + * image with stride==width. + */ +static void +decompress_image(enum pipe_format format, int datatype, + const uint8_t *src, void *dst, + unsigned width, unsigned height, unsigned src_stride) +{ + const struct util_format_description *desc = util_format_description(format); + const uint bw = util_format_get_blockwidth(format); + const uint bh = util_format_get_blockheight(format); + uint dst_stride = 4 * MAX2(width, bw); + + if (datatype == GL_FLOAT) { + desc->unpack_rgba_float((float *)dst, dst_stride * sizeof(GLfloat), src, src_stride, width, height); + if (width < bw || height < bh) { + float *dst_p = (float *)dst; + /* We're decompressing an image smaller than the compression + * block size. We don't want garbage pixel values in the region + * outside (width x height) so replicate pixels from the (width + * x height) region to fill out the (bw x bh) block size. + */ + uint x, y; + for (y = 0; y < bh; y++) { + for (x = 0; x < bw; x++) { + if (x >= width || y >= height) { + uint p = (y * bw + x) * 4; + dst_p[p + 0] = dst_p[0]; + dst_p[p + 1] = dst_p[1]; + dst_p[p + 2] = dst_p[2]; + dst_p[p + 3] = dst_p[3]; + } + } + } + } + } else { + desc->unpack_rgba_8unorm((uint8_t *)dst, dst_stride, src, src_stride, width, height); + if (width < bw || height < bh) { + uint8_t *dst_p = (uint8_t *)dst; + /* We're decompressing an image smaller than the compression + * block size. We don't want garbage pixel values in the region + * outside (width x height) so replicate pixels from the (width + * x height) region to fill out the (bw x bh) block size. + */ + uint x, y; + for (y = 0; y < bh; y++) { + for (x = 0; x < bw; x++) { + if (x >= width || y >= height) { + uint p = (y * bw + x) * 4; + dst_p[p + 0] = dst_p[0]; + dst_p[p + 1] = dst_p[1]; + dst_p[p + 2] = dst_p[2]; + dst_p[p + 3] = dst_p[3]; + } + } + } + } + } +} + +/** + * Helper function to compress an image. The source is a 32-bpp RGBA image + * with stride==width. + */ +static void +compress_image(enum pipe_format format, int datatype, + const void *src, uint8_t *dst, + unsigned width, unsigned height, unsigned dst_stride) +{ + const struct util_format_description *desc = util_format_description(format); + const uint src_stride = 4 * width; + + if (datatype == GL_FLOAT) + desc->pack_rgba_float(dst, dst_stride, (GLfloat *)src, src_stride * sizeof(GLfloat), width, height); + else + desc->pack_rgba_8unorm(dst, dst_stride, (uint8_t *)src, src_stride, width, height); +} + + +/** + * Software fallback for generate mipmap levels. + */ +static void +fallback_generate_mipmap(struct gl_context *ctx, GLenum target, + struct gl_texture_object *texObj) +{ + struct pipe_context *pipe = st_context(ctx)->pipe; + struct pipe_resource *pt = st_get_texobj_resource(texObj); + const uint baseLevel = texObj->BaseLevel; + const uint lastLevel = pt->last_level; + const uint face = _mesa_tex_target_to_face(target); + uint dstLevel; + GLenum datatype; + GLuint comps; + GLboolean compressed; + + if (ST_DEBUG & DEBUG_FALLBACK) + debug_printf("%s: fallback processing\n", __FUNCTION__); + + assert(target != GL_TEXTURE_3D); /* not done yet */ + + compressed = + _mesa_is_format_compressed(texObj->Image[face][baseLevel]->TexFormat); + + if (compressed) { + GLenum type = + _mesa_get_format_datatype(texObj->Image[face][baseLevel]->TexFormat); + + datatype = type == GL_UNSIGNED_NORMALIZED ? GL_UNSIGNED_BYTE : GL_FLOAT; + comps = 4; + } + else { + _mesa_format_to_type_and_comps(texObj->Image[face][baseLevel]->TexFormat, + &datatype, &comps); + assert(comps > 0 && "bad texture format in fallback_generate_mipmap()"); + } + + for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) { + const uint srcLevel = dstLevel - 1; + const uint srcWidth = u_minify(pt->width0, srcLevel); + const uint srcHeight = u_minify(pt->height0, srcLevel); + const uint srcDepth = u_minify(pt->depth0, srcLevel); + const uint dstWidth = u_minify(pt->width0, dstLevel); + const uint dstHeight = u_minify(pt->height0, dstLevel); + const uint dstDepth = u_minify(pt->depth0, dstLevel); + struct pipe_transfer *srcTrans, *dstTrans; + const ubyte *srcData; + ubyte *dstData; + int srcStride, dstStride; + + srcTrans = pipe_get_transfer(st_context(ctx)->pipe, pt, srcLevel, + face, + PIPE_TRANSFER_READ, 0, 0, + srcWidth, srcHeight); + + dstTrans = pipe_get_transfer(st_context(ctx)->pipe, pt, dstLevel, + face, + PIPE_TRANSFER_WRITE, 0, 0, + dstWidth, dstHeight); + + srcData = (ubyte *) pipe_transfer_map(pipe, srcTrans); + dstData = (ubyte *) pipe_transfer_map(pipe, dstTrans); + + srcStride = srcTrans->stride / util_format_get_blocksize(srcTrans->resource->format); + dstStride = dstTrans->stride / util_format_get_blocksize(dstTrans->resource->format); + + /* this cannot work correctly for 3d since it does + not respect layerStride. */ + if (compressed) { + const enum pipe_format format = pt->format; + const uint bw = util_format_get_blockwidth(format); + const uint bh = util_format_get_blockheight(format); + const uint srcWidth2 = align(srcWidth, bw); + const uint srcHeight2 = align(srcHeight, bh); + const uint dstWidth2 = align(dstWidth, bw); + const uint dstHeight2 = align(dstHeight, bh); + uint8_t *srcTemp, *dstTemp; + + assert(comps == 4); + + srcTemp = malloc(srcWidth2 * srcHeight2 * comps * (datatype == GL_FLOAT ? 4 : 1)); + dstTemp = malloc(dstWidth2 * dstHeight2 * comps * (datatype == GL_FLOAT ? 4 : 1)); + + /* decompress the src image: srcData -> srcTemp */ + decompress_image(format, datatype, srcData, srcTemp, srcWidth2, srcHeight2, srcTrans->stride); + + _mesa_generate_mipmap_level(target, datatype, comps, + 0 /*border*/, + srcWidth2, srcHeight2, srcDepth, + srcTemp, + srcWidth2, /* stride in texels */ + dstWidth2, dstHeight2, dstDepth, + dstTemp, + dstWidth2); /* stride in texels */ + + /* compress the new image: dstTemp -> dstData */ + compress_image(format, datatype, dstTemp, dstData, dstWidth2, dstHeight2, dstTrans->stride); + + free(srcTemp); + free(dstTemp); + } + else { + _mesa_generate_mipmap_level(target, datatype, comps, + 0 /*border*/, + srcWidth, srcHeight, srcDepth, + srcData, + srcStride, /* stride in texels */ + dstWidth, dstHeight, dstDepth, + dstData, + dstStride); /* stride in texels */ + } + + pipe_transfer_unmap(pipe, srcTrans); + pipe_transfer_unmap(pipe, dstTrans); + + pipe->transfer_destroy(pipe, srcTrans); + pipe->transfer_destroy(pipe, dstTrans); + } +} + + +/** + * Compute the expected number of mipmap levels in the texture given + * the width/height/depth of the base image and the GL_TEXTURE_BASE_LEVEL/ + * GL_TEXTURE_MAX_LEVEL settings. This will tell us how many mipmap + * levels should be generated. + */ +static GLuint +compute_num_levels(struct gl_context *ctx, + struct gl_texture_object *texObj, + GLenum target) +{ + if (target == GL_TEXTURE_RECTANGLE_ARB) { + return 1; + } + else { + const struct gl_texture_image *baseImage = + _mesa_get_tex_image(ctx, texObj, target, texObj->BaseLevel); + GLuint size, numLevels; + + size = MAX2(baseImage->Width2, baseImage->Height2); + size = MAX2(size, baseImage->Depth2); + + numLevels = texObj->BaseLevel; + + while (size > 0) { + numLevels++; + size >>= 1; + } + + numLevels = MIN2(numLevels, texObj->MaxLevel + 1); + + assert(numLevels >= 1); + + return numLevels; + } +} + + +/** + * Called via ctx->Driver.GenerateMipmap(). + */ +void +st_generate_mipmap(struct gl_context *ctx, GLenum target, + struct gl_texture_object *texObj) +{ + struct st_context *st = st_context(ctx); + struct st_texture_object *stObj = st_texture_object(texObj); + struct pipe_resource *pt = st_get_texobj_resource(texObj); + const uint baseLevel = texObj->BaseLevel; + uint lastLevel; + uint dstLevel; + + if (!pt) + return; + + /* not sure if this ultimately actually should work, + but we're not supporting multisampled textures yet. */ + assert(pt->nr_samples < 2); + + /* find expected last mipmap level to generate*/ + lastLevel = compute_num_levels(ctx, texObj, target) - 1; + + if (lastLevel == 0) + return; + + /* The texture isn't in a "complete" state yet so set the expected + * lastLevel here, since it won't get done in st_finalize_texture(). + */ + stObj->lastLevel = lastLevel; + + if (pt->last_level < lastLevel) { + /* The current gallium texture doesn't have space for all the + * mipmap levels we need to generate. So allocate a new texture. + */ + struct pipe_resource *oldTex = stObj->pt; + + /* create new texture with space for more levels */ + stObj->pt = st_texture_create(st, + oldTex->target, + oldTex->format, + lastLevel, + oldTex->width0, + oldTex->height0, + oldTex->depth0, + oldTex->array_size, + oldTex->bind); + + /* This will copy the old texture's base image into the new texture + * which we just allocated. + */ + st_finalize_texture(ctx, st->pipe, texObj); + + /* release the old tex (will likely be freed too) */ + pipe_resource_reference(&oldTex, NULL); + pipe_sampler_view_reference(&stObj->sampler_view, NULL); + } + else { + /* Make sure that the base texture image data is present in the + * texture buffer. + */ + st_finalize_texture(ctx, st->pipe, texObj); + } + + pt = stObj->pt; + + assert(pt->last_level >= lastLevel); + + /* Try to generate the mipmap by rendering/texturing. If that fails, + * use the software fallback. + */ + if (!st_render_mipmap(st, target, stObj, baseLevel, lastLevel)) { + /* since the util code actually also has a fallback, should + probably make it never fail and kill this */ + fallback_generate_mipmap(ctx, target, texObj); + } + + /* Fill in the Mesa gl_texture_image fields */ + for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) { + const uint srcLevel = dstLevel - 1; + const struct gl_texture_image *srcImage + = _mesa_get_tex_image(ctx, texObj, target, srcLevel); + struct gl_texture_image *dstImage; + struct st_texture_image *stImage; + uint dstWidth = u_minify(pt->width0, dstLevel); + uint dstHeight = u_minify(pt->height0, dstLevel); + uint dstDepth = u_minify(pt->depth0, dstLevel); + uint border = srcImage->Border; + + dstImage = _mesa_get_tex_image(ctx, texObj, target, dstLevel); + if (!dstImage) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps"); + return; + } + + /* Free old image data */ + if (dstImage->Data) + ctx->Driver.FreeTexImageData(ctx, dstImage); + + /* initialize new image */ + _mesa_init_teximage_fields(ctx, target, dstImage, dstWidth, dstHeight, + dstDepth, border, srcImage->InternalFormat, + srcImage->TexFormat); + + stImage = st_texture_image(dstImage); + stImage->level = dstLevel; + + pipe_resource_reference(&stImage->pt, pt); + } +} diff --git a/mesalib/src/mesa/state_tracker/st_manager.c b/mesalib/src/mesa/state_tracker/st_manager.c index d85bcd4f7..e126c0a1e 100644 --- a/mesalib/src/mesa/state_tracker/st_manager.c +++ b/mesalib/src/mesa/state_tracker/st_manager.c @@ -1,923 +1,923 @@ -/* - * Mesa 3-D graphics library - * Version: 7.9 - * - * Copyright (C) 2010 LunarG Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * Authors: - * Chia-I Wu - */ - -#include "state_tracker/st_gl_api.h" - -#include "pipe/p_context.h" -#include "pipe/p_screen.h" -#include "util/u_format.h" -#include "util/u_pointer.h" -#include "util/u_inlines.h" -#include "util/u_atomic.h" -#include "util/u_surface.h" - -#include "main/mtypes.h" -#include "main/context.h" -#include "main/mfeatures.h" -#include "main/texobj.h" -#include "main/teximage.h" -#include "main/texstate.h" -#include "main/framebuffer.h" -#include "main/fbobject.h" -#include "main/renderbuffer.h" -#include "main/version.h" -#include "st_texture.h" - -#include "st_context.h" -#include "st_format.h" -#include "st_cb_fbo.h" -#include "st_cb_flush.h" -#include "st_manager.h" - -/** - * Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer. - * Return NULL if the struct gl_framebuffer is a user-created framebuffer. - * We'll only return non-null for window system framebuffers. - * Note that this function may fail. - */ -static INLINE struct st_framebuffer * -st_ws_framebuffer(struct gl_framebuffer *fb) -{ - /* FBO cannot be casted. See st_new_framebuffer */ - return (struct st_framebuffer *) ((fb && !fb->Name) ? fb : NULL); -} - -/** - * Map an attachment to a buffer index. - */ -static INLINE gl_buffer_index -attachment_to_buffer_index(enum st_attachment_type statt) -{ - gl_buffer_index index; - - switch (statt) { - case ST_ATTACHMENT_FRONT_LEFT: - index = BUFFER_FRONT_LEFT; - break; - case ST_ATTACHMENT_BACK_LEFT: - index = BUFFER_BACK_LEFT; - break; - case ST_ATTACHMENT_FRONT_RIGHT: - index = BUFFER_FRONT_RIGHT; - break; - case ST_ATTACHMENT_BACK_RIGHT: - index = BUFFER_BACK_RIGHT; - break; - case ST_ATTACHMENT_DEPTH_STENCIL: - index = BUFFER_DEPTH; - break; - case ST_ATTACHMENT_ACCUM: - index = BUFFER_ACCUM; - break; - case ST_ATTACHMENT_SAMPLE: - default: - index = BUFFER_COUNT; - break; - } - - return index; -} - -/** - * Map a buffer index to an attachment. - */ -static INLINE enum st_attachment_type -buffer_index_to_attachment(gl_buffer_index index) -{ - enum st_attachment_type statt; - - switch (index) { - case BUFFER_FRONT_LEFT: - statt = ST_ATTACHMENT_FRONT_LEFT; - break; - case BUFFER_BACK_LEFT: - statt = ST_ATTACHMENT_BACK_LEFT; - break; - case BUFFER_FRONT_RIGHT: - statt = ST_ATTACHMENT_FRONT_RIGHT; - break; - case BUFFER_BACK_RIGHT: - statt = ST_ATTACHMENT_BACK_RIGHT; - break; - case BUFFER_DEPTH: - statt = ST_ATTACHMENT_DEPTH_STENCIL; - break; - case BUFFER_ACCUM: - statt = ST_ATTACHMENT_ACCUM; - break; - default: - statt = ST_ATTACHMENT_INVALID; - break; - } - - return statt; -} - -/** - * Validate a framebuffer to make sure up-to-date pipe_textures are used. - */ -static void -st_framebuffer_validate(struct st_framebuffer *stfb, struct st_context *st) -{ - struct pipe_context *pipe = st->pipe; - struct pipe_resource *textures[ST_ATTACHMENT_COUNT]; - uint width, height; - unsigned i; - boolean changed = FALSE; - - if (!p_atomic_read(&stfb->revalidate)) - return; - - /* validate the fb */ - if (!stfb->iface->validate(stfb->iface, stfb->statts, stfb->num_statts, textures)) - return; - - width = stfb->Base.Width; - height = stfb->Base.Height; - - for (i = 0; i < stfb->num_statts; i++) { - struct st_renderbuffer *strb; - struct pipe_surface *ps, surf_tmpl; - gl_buffer_index idx; - - if (!textures[i]) - continue; - - idx = attachment_to_buffer_index(stfb->statts[i]); - if (idx >= BUFFER_COUNT) { - pipe_resource_reference(&textures[i], NULL); - continue; - } - - strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer); - assert(strb); - if (strb->texture == textures[i]) { - pipe_resource_reference(&textures[i], NULL); - continue; - } - - memset(&surf_tmpl, 0, sizeof(surf_tmpl)); - u_surface_default_template(&surf_tmpl, textures[i], - PIPE_BIND_RENDER_TARGET); - ps = pipe->create_surface(pipe, textures[i], &surf_tmpl); - if (ps) { - pipe_surface_reference(&strb->surface, ps); - pipe_resource_reference(&strb->texture, ps->texture); - /* ownership transfered */ - pipe_surface_reference(&ps, NULL); - - changed = TRUE; - - strb->Base.Width = strb->surface->width; - strb->Base.Height = strb->surface->height; - - width = strb->Base.Width; - height = strb->Base.Height; - } - - pipe_resource_reference(&textures[i], NULL); - } - - if (changed) { - st->dirty.st |= ST_NEW_FRAMEBUFFER; - _mesa_resize_framebuffer(st->ctx, &stfb->Base, width, height); - - assert(stfb->Base.Width == width); - assert(stfb->Base.Height == height); - } - - p_atomic_set(&stfb->revalidate, FALSE); -} - -/** - * Update the attachments to validate by looping the existing renderbuffers. - */ -static void -st_framebuffer_update_attachments(struct st_framebuffer *stfb) -{ - gl_buffer_index idx; - - stfb->num_statts = 0; - for (idx = 0; idx < BUFFER_COUNT; idx++) { - struct st_renderbuffer *strb; - enum st_attachment_type statt; - - strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer); - if (!strb || strb->software) - continue; - - statt = buffer_index_to_attachment(idx); - if (statt != ST_ATTACHMENT_INVALID && - st_visual_have_buffers(stfb->iface->visual, 1 << statt)) - stfb->statts[stfb->num_statts++] = statt; - } - - p_atomic_set(&stfb->revalidate, TRUE); -} - -/** - * Add a renderbuffer to the framebuffer. - */ -static boolean -st_framebuffer_add_renderbuffer(struct st_framebuffer *stfb, - gl_buffer_index idx) -{ - struct gl_renderbuffer *rb; - enum pipe_format format; - int samples; - boolean sw; - - if (!stfb->iface) - return FALSE; - - /* do not distinguish depth/stencil buffers */ - if (idx == BUFFER_STENCIL) - idx = BUFFER_DEPTH; - - switch (idx) { - case BUFFER_DEPTH: - format = stfb->iface->visual->depth_stencil_format; - sw = FALSE; - break; - case BUFFER_ACCUM: - format = stfb->iface->visual->accum_format; - sw = TRUE; - break; - default: - format = stfb->iface->visual->color_format; - sw = FALSE; - break; - } - - if (format == PIPE_FORMAT_NONE) - return FALSE; - - samples = stfb->iface->visual->samples; - if (!samples) - samples = st_get_msaa(); - - rb = st_new_renderbuffer_fb(format, samples, sw); - if (!rb) - return FALSE; - - if (idx != BUFFER_DEPTH) { - _mesa_add_renderbuffer(&stfb->Base, idx, rb); - } - else { - if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0)) - _mesa_add_renderbuffer(&stfb->Base, BUFFER_DEPTH, rb); - if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1)) - _mesa_add_renderbuffer(&stfb->Base, BUFFER_STENCIL, rb); - } - - return TRUE; -} - -/** - * Intialize a struct gl_config from a visual. - */ -static void -st_visual_to_context_mode(const struct st_visual *visual, - struct gl_config *mode) -{ - memset(mode, 0, sizeof(*mode)); - - if (st_visual_have_buffers(visual, ST_ATTACHMENT_BACK_LEFT_MASK)) - mode->doubleBufferMode = GL_TRUE; - if (st_visual_have_buffers(visual, - ST_ATTACHMENT_FRONT_RIGHT_MASK | ST_ATTACHMENT_BACK_RIGHT_MASK)) - mode->stereoMode = GL_TRUE; - - if (visual->color_format != PIPE_FORMAT_NONE) { - mode->rgbMode = GL_TRUE; - - mode->redBits = - util_format_get_component_bits(visual->color_format, - UTIL_FORMAT_COLORSPACE_RGB, 0); - mode->greenBits = - util_format_get_component_bits(visual->color_format, - UTIL_FORMAT_COLORSPACE_RGB, 1); - mode->blueBits = - util_format_get_component_bits(visual->color_format, - UTIL_FORMAT_COLORSPACE_RGB, 2); - mode->alphaBits = - util_format_get_component_bits(visual->color_format, - UTIL_FORMAT_COLORSPACE_RGB, 3); - - mode->rgbBits = mode->redBits + - mode->greenBits + mode->blueBits + mode->alphaBits; - } - - if (visual->depth_stencil_format != PIPE_FORMAT_NONE) { - mode->depthBits = - util_format_get_component_bits(visual->depth_stencil_format, - UTIL_FORMAT_COLORSPACE_ZS, 0); - mode->stencilBits = - util_format_get_component_bits(visual->depth_stencil_format, - UTIL_FORMAT_COLORSPACE_ZS, 1); - - mode->haveDepthBuffer = mode->depthBits > 0; - mode->haveStencilBuffer = mode->stencilBits > 0; - } - - if (visual->accum_format != PIPE_FORMAT_NONE) { - mode->haveAccumBuffer = GL_TRUE; - - mode->accumRedBits = - util_format_get_component_bits(visual->accum_format, - UTIL_FORMAT_COLORSPACE_RGB, 0); - mode->accumGreenBits = - util_format_get_component_bits(visual->accum_format, - UTIL_FORMAT_COLORSPACE_RGB, 1); - mode->accumBlueBits = - util_format_get_component_bits(visual->accum_format, - UTIL_FORMAT_COLORSPACE_RGB, 2); - mode->accumAlphaBits = - util_format_get_component_bits(visual->accum_format, - UTIL_FORMAT_COLORSPACE_RGB, 3); - } - - if (visual->samples) { - mode->sampleBuffers = 1; - mode->samples = visual->samples; - } -} - -/** - * Determine the default draw or read buffer from a visual. - */ -static void -st_visual_to_default_buffer(const struct st_visual *visual, - GLenum *buffer, GLint *index) -{ - enum st_attachment_type statt; - GLenum buf; - gl_buffer_index idx; - - statt = visual->render_buffer; - /* do nothing if an invalid render buffer is specified */ - if (statt == ST_ATTACHMENT_INVALID || - !st_visual_have_buffers(visual, 1 << statt)) - return; - - switch (statt) { - case ST_ATTACHMENT_FRONT_LEFT: - buf = GL_FRONT_LEFT; - idx = BUFFER_FRONT_LEFT; - break; - case ST_ATTACHMENT_BACK_LEFT: - buf = GL_BACK_LEFT; - idx = BUFFER_BACK_LEFT; - break; - case ST_ATTACHMENT_FRONT_RIGHT: - buf = GL_FRONT_RIGHT; - idx = BUFFER_FRONT_RIGHT; - break; - case ST_ATTACHMENT_BACK_RIGHT: - buf = GL_BACK_RIGHT; - idx = BUFFER_BACK_RIGHT; - break; - default: - buf = GL_NONE; - idx = BUFFER_COUNT; - break; - } - - if (buf != GL_NONE) { - if (buffer) - *buffer = buf; - if (index) - *index = idx; - } -} - -/** - * Create a framebuffer from a manager interface. - */ -static struct st_framebuffer * -st_framebuffer_create(struct st_framebuffer_iface *stfbi) -{ - struct st_framebuffer *stfb; - struct gl_config mode; - gl_buffer_index idx; - - if (!stfbi) - return NULL; - - stfb = CALLOC_STRUCT(st_framebuffer); - if (!stfb) - return NULL; - - st_visual_to_context_mode(stfbi->visual, &mode); - _mesa_initialize_window_framebuffer(&stfb->Base, &mode); - - /* modify the draw/read buffers of the fb */ - st_visual_to_default_buffer(stfbi->visual, &stfb->Base.ColorDrawBuffer[0], - &stfb->Base._ColorDrawBufferIndexes[0]); - st_visual_to_default_buffer(stfbi->visual, &stfb->Base.ColorReadBuffer, - &stfb->Base._ColorReadBufferIndex); - - stfb->iface = stfbi; - - /* add the color buffer */ - idx = stfb->Base._ColorDrawBufferIndexes[0]; - if (!st_framebuffer_add_renderbuffer(stfb, idx)) { - FREE(stfb); - return NULL; - } - - st_framebuffer_add_renderbuffer(stfb, BUFFER_DEPTH); - st_framebuffer_add_renderbuffer(stfb, BUFFER_ACCUM); - - st_framebuffer_update_attachments(stfb); - - stfb->Base.Initialized = GL_TRUE; - - return stfb; -} - -/** - * Reference a framebuffer. - */ -static void -st_framebuffer_reference(struct st_framebuffer **ptr, - struct st_framebuffer *stfb) -{ - struct gl_framebuffer *fb = &stfb->Base; - _mesa_reference_framebuffer((struct gl_framebuffer **) ptr, fb); -} - -static void -st_context_notify_invalid_framebuffer(struct st_context_iface *stctxi, - struct st_framebuffer_iface *stfbi) -{ - struct st_context *st = (struct st_context *) stctxi; - struct st_framebuffer *stfb; - - /* either draw or read winsys fb */ - stfb = st_ws_framebuffer(st->ctx->WinSysDrawBuffer); - if (!stfb || stfb->iface != stfbi) - stfb = st_ws_framebuffer(st->ctx->WinSysReadBuffer); - - if (stfb && stfb->iface == stfbi) { - p_atomic_set(&stfb->revalidate, TRUE); - } - else { - /* This function is probably getting called when we've detected a - * change in a window's size but the currently bound context is - * not bound to that window. - * If the st_framebuffer_iface structure had a pointer to the - * corresponding st_framebuffer we'd be able to handle this. - */ - } -} - -static void -st_context_flush(struct st_context_iface *stctxi, unsigned flags, - struct pipe_fence_handle **fence) -{ - struct st_context *st = (struct st_context *) stctxi; - st_flush(st, flags, fence); - if (flags & PIPE_FLUSH_RENDER_CACHE) - st_manager_flush_frontbuffer(st); -} - -static boolean -st_context_teximage(struct st_context_iface *stctxi, - enum st_texture_type target, - int level, enum pipe_format internal_format, - struct pipe_resource *tex, boolean mipmap) -{ - struct st_context *st = (struct st_context *) stctxi; - struct gl_context *ctx = st->ctx; - struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - struct st_texture_object *stObj; - struct st_texture_image *stImage; - GLenum internalFormat; - GLuint width, height, depth; - - switch (target) { - case ST_TEXTURE_1D: - target = GL_TEXTURE_1D; - break; - case ST_TEXTURE_2D: - target = GL_TEXTURE_2D; - break; - case ST_TEXTURE_3D: - target = GL_TEXTURE_3D; - break; - case ST_TEXTURE_RECT: - target = GL_TEXTURE_RECTANGLE_ARB; - break; - default: - return FALSE; - break; - } - - texObj = _mesa_select_tex_object(ctx, texUnit, target); - _mesa_lock_texture(ctx, texObj); - - stObj = st_texture_object(texObj); - /* switch to surface based */ - if (!stObj->surface_based) { - _mesa_clear_texture_object(ctx, texObj); - stObj->surface_based = GL_TRUE; - } - - texImage = _mesa_get_tex_image(ctx, texObj, target, level); - stImage = st_texture_image(texImage); - if (tex) { - gl_format texFormat; - - /* - * XXX When internal_format and tex->format differ, st_finalize_texture - * needs to allocate a new texture with internal_format and copy the - * texture here into the new one. It will result in surface_copy being - * called on surfaces whose formats differ. - * - * To avoid that, internal_format is (wrongly) ignored here. A sane fix - * is to use a sampler view. - */ - if (!st_sampler_compat_formats(tex->format, internal_format)) - internal_format = tex->format; - - if (util_format_get_component_bits(internal_format, - UTIL_FORMAT_COLORSPACE_RGB, 3) > 0) - internalFormat = GL_RGBA; - else - internalFormat = GL_RGB; - - texFormat = st_ChooseTextureFormat(ctx, internalFormat, - GL_RGBA, GL_UNSIGNED_BYTE); - - _mesa_init_teximage_fields(ctx, target, texImage, - tex->width0, tex->height0, 1, 0, - internalFormat, texFormat); - - width = tex->width0; - height = tex->height0; - depth = tex->depth0; - - /* grow the image size until we hit level = 0 */ - while (level > 0) { - if (width != 1) - width <<= 1; - if (height != 1) - height <<= 1; - if (depth != 1) - depth <<= 1; - level--; - } - } - else { - _mesa_clear_texture_image(ctx, texImage); - width = height = depth = 0; - } - - pipe_resource_reference(&stImage->pt, tex); - stObj->width0 = width; - stObj->height0 = height; - stObj->depth0 = depth; - - _mesa_dirty_texobj(ctx, texObj, GL_TRUE); - _mesa_unlock_texture(ctx, texObj); - - return TRUE; -} - -static void -st_context_copy(struct st_context_iface *stctxi, - struct st_context_iface *stsrci, unsigned mask) -{ - struct st_context *st = (struct st_context *) stctxi; - struct st_context *src = (struct st_context *) stsrci; - - _mesa_copy_context(src->ctx, st->ctx, mask); -} - -static boolean -st_context_share(struct st_context_iface *stctxi, - struct st_context_iface *stsrci) -{ - struct st_context *st = (struct st_context *) stctxi; - struct st_context *src = (struct st_context *) stsrci; - - return _mesa_share_state(st->ctx, src->ctx); -} - -static void -st_context_destroy(struct st_context_iface *stctxi) -{ - struct st_context *st = (struct st_context *) stctxi; - st_destroy_context(st); -} - -static struct st_context_iface * -st_api_create_context(struct st_api *stapi, struct st_manager *smapi, - const struct st_context_attribs *attribs, - struct st_context_iface *shared_stctxi) -{ - struct st_context *shared_ctx = (struct st_context *) shared_stctxi; - struct st_context *st; - struct pipe_context *pipe; - struct gl_config mode; - gl_api api; - - if (!(stapi->profile_mask & (1 << attribs->profile))) - return NULL; - - switch (attribs->profile) { - case ST_PROFILE_DEFAULT: - api = API_OPENGL; - break; - case ST_PROFILE_OPENGL_ES1: - api = API_OPENGLES; - break; - case ST_PROFILE_OPENGL_ES2: - api = API_OPENGLES2; - break; - case ST_PROFILE_OPENGL_CORE: - default: - return NULL; - break; - } - - pipe = smapi->screen->context_create(smapi->screen, NULL); - if (!pipe) - return NULL; - - st_visual_to_context_mode(&attribs->visual, &mode); - st = st_create_context(api, pipe, &mode, shared_ctx); - if (!st) { - pipe->destroy(pipe); - return NULL; - } - - /* need to perform version check */ - if (attribs->major > 1 || attribs->minor > 0) { - _mesa_compute_version(st->ctx); - - /* is the actual version less than the requested version? */ - if (st->ctx->VersionMajor * 10 + st->ctx->VersionMinor < - attribs->major * 10 + attribs->minor) { - st_destroy_context(st); - return NULL; - } - } - - st->invalidate_on_gl_viewport = - smapi->get_param(smapi, ST_MANAGER_BROKEN_INVALIDATE); - - st->iface.destroy = st_context_destroy; - st->iface.notify_invalid_framebuffer = - st_context_notify_invalid_framebuffer; - st->iface.flush = st_context_flush; - st->iface.teximage = st_context_teximage; - st->iface.copy = st_context_copy; - st->iface.share = st_context_share; - st->iface.st_context_private = (void *) smapi; - - return &st->iface; -} - -static boolean -st_api_make_current(struct st_api *stapi, struct st_context_iface *stctxi, - struct st_framebuffer_iface *stdrawi, - struct st_framebuffer_iface *streadi) -{ - struct st_context *st = (struct st_context *) stctxi; - struct st_framebuffer *stdraw, *stread, *stfb; - boolean ret; - - _glapi_check_multithread(); - - if (st) { - /* reuse/create the draw fb */ - stfb = st_ws_framebuffer(st->ctx->WinSysDrawBuffer); - if (stfb && stfb->iface == stdrawi) { - stdraw = NULL; - st_framebuffer_reference(&stdraw, stfb); - } - else { - stdraw = st_framebuffer_create(stdrawi); - } - - /* reuse/create the read fb */ - stfb = st_ws_framebuffer(st->ctx->WinSysReadBuffer); - if (!stfb || stfb->iface != streadi) - stfb = stdraw; - if (stfb && stfb->iface == streadi) { - stread = NULL; - st_framebuffer_reference(&stread, stfb); - } - else { - stread = st_framebuffer_create(streadi); - } - - if (stdraw && stread) { - st_framebuffer_validate(stdraw, st); - if (stread != stdraw) - st_framebuffer_validate(stread, st); - - /* modify the draw/read buffers of the context */ - if (stdraw->iface) { - st_visual_to_default_buffer(stdraw->iface->visual, - &st->ctx->Color.DrawBuffer[0], NULL); - } - if (stread->iface) { - st_visual_to_default_buffer(stread->iface->visual, - &st->ctx->Pixel.ReadBuffer, NULL); - } - - ret = _mesa_make_current(st->ctx, &stdraw->Base, &stread->Base); - } - else { - struct gl_framebuffer *incomplete = _mesa_get_incomplete_framebuffer(); - ret = _mesa_make_current(st->ctx, incomplete, incomplete); - } - - st_framebuffer_reference(&stdraw, NULL); - st_framebuffer_reference(&stread, NULL); - } - else { - ret = _mesa_make_current(NULL, NULL, NULL); - } - - return ret; -} - -static struct st_context_iface * -st_api_get_current(struct st_api *stapi) -{ - GET_CURRENT_CONTEXT(ctx); - struct st_context *st = (ctx) ? ctx->st : NULL; - - return (st) ? &st->iface : NULL; -} - -static st_proc_t -st_api_get_proc_address(struct st_api *stapi, const char *procname) -{ - return (st_proc_t) _glapi_get_proc_address(procname); -} - -static void -st_api_destroy(struct st_api *stapi) -{ -} - -/** - * Flush the front buffer if the current context renders to the front buffer. - */ -void -st_manager_flush_frontbuffer(struct st_context *st) -{ - struct st_framebuffer *stfb = st_ws_framebuffer(st->ctx->DrawBuffer); - struct st_renderbuffer *strb = NULL; - - if (stfb) - strb = st_renderbuffer(stfb->Base.Attachment[BUFFER_FRONT_LEFT].Renderbuffer); - if (!strb) - return; - - /* never a dummy fb */ - assert(stfb->iface); - stfb->iface->flush_front(stfb->iface, ST_ATTACHMENT_FRONT_LEFT); -} - -/** - * Return the surface of an EGLImage. - * FIXME: I think this should operate on resources, not surfaces - */ -struct pipe_surface * -st_manager_get_egl_image_surface(struct st_context *st, - void *eglimg, unsigned usage) -{ - struct st_manager *smapi = - (struct st_manager *) st->iface.st_context_private; - struct st_egl_image stimg; - struct pipe_surface *ps, surf_tmpl; - - if (!smapi || !smapi->get_egl_image) - return NULL; - - memset(&stimg, 0, sizeof(stimg)); - if (!smapi->get_egl_image(smapi, eglimg, &stimg)) - return NULL; - - memset(&surf_tmpl, 0, sizeof(surf_tmpl)); - surf_tmpl.format = stimg.texture->format; - surf_tmpl.usage = usage; - surf_tmpl.u.tex.level = stimg.level; - surf_tmpl.u.tex.first_layer = stimg.layer; - surf_tmpl.u.tex.last_layer = stimg.layer; - ps = st->pipe->create_surface(st->pipe, stimg.texture, &surf_tmpl); - pipe_resource_reference(&stimg.texture, NULL); - - return ps; -} - -/** - * Re-validate the framebuffers. - */ -void -st_manager_validate_framebuffers(struct st_context *st) -{ - struct st_framebuffer *stdraw = st_ws_framebuffer(st->ctx->DrawBuffer); - struct st_framebuffer *stread = st_ws_framebuffer(st->ctx->ReadBuffer); - - if (stdraw) - st_framebuffer_validate(stdraw, st); - if (stread && stread != stdraw) - st_framebuffer_validate(stread, st); -} - -/** - * Add a color renderbuffer on demand. - */ -boolean -st_manager_add_color_renderbuffer(struct st_context *st, - struct gl_framebuffer *fb, - gl_buffer_index idx) -{ - struct st_framebuffer *stfb = st_ws_framebuffer(fb); - - /* FBO */ - if (!stfb) - return FALSE; - - if (stfb->Base.Attachment[idx].Renderbuffer) - return TRUE; - - switch (idx) { - case BUFFER_FRONT_LEFT: - case BUFFER_BACK_LEFT: - case BUFFER_FRONT_RIGHT: - case BUFFER_BACK_RIGHT: - break; - default: - return FALSE; - break; - } - - if (!st_framebuffer_add_renderbuffer(stfb, idx)) - return FALSE; - - st_framebuffer_update_attachments(stfb); - st_invalidate_state(st->ctx, _NEW_BUFFERS); - - return TRUE; -} - -static const struct st_api st_gl_api = { - "Mesa " MESA_VERSION_STRING, - ST_API_OPENGL, -#if FEATURE_GL - ST_PROFILE_DEFAULT_MASK | -#endif -#if FEATURE_ES1 - ST_PROFILE_OPENGL_ES1_MASK | -#endif -#if FEATURE_ES2 - ST_PROFILE_OPENGL_ES2_MASK | -#endif - 0, - st_api_destroy, - st_api_get_proc_address, - st_api_create_context, - st_api_make_current, - st_api_get_current, -}; - -struct st_api * -st_gl_api_create(void) -{ - return (struct st_api *) &st_gl_api; -} +/* + * Mesa 3-D graphics library + * Version: 7.9 + * + * Copyright (C) 2010 LunarG Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Authors: + * Chia-I Wu + */ + +#include "state_tracker/st_gl_api.h" + +#include "pipe/p_context.h" +#include "pipe/p_screen.h" +#include "util/u_format.h" +#include "util/u_pointer.h" +#include "util/u_inlines.h" +#include "util/u_atomic.h" +#include "util/u_surface.h" + +#include "main/mtypes.h" +#include "main/context.h" +#include "main/mfeatures.h" +#include "main/texobj.h" +#include "main/teximage.h" +#include "main/texstate.h" +#include "main/framebuffer.h" +#include "main/fbobject.h" +#include "main/renderbuffer.h" +#include "main/version.h" +#include "st_texture.h" + +#include "st_context.h" +#include "st_format.h" +#include "st_cb_fbo.h" +#include "st_cb_flush.h" +#include "st_manager.h" + +/** + * Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer. + * Return NULL if the struct gl_framebuffer is a user-created framebuffer. + * We'll only return non-null for window system framebuffers. + * Note that this function may fail. + */ +static INLINE struct st_framebuffer * +st_ws_framebuffer(struct gl_framebuffer *fb) +{ + /* FBO cannot be casted. See st_new_framebuffer */ + return (struct st_framebuffer *) ((fb && !fb->Name) ? fb : NULL); +} + +/** + * Map an attachment to a buffer index. + */ +static INLINE gl_buffer_index +attachment_to_buffer_index(enum st_attachment_type statt) +{ + gl_buffer_index index; + + switch (statt) { + case ST_ATTACHMENT_FRONT_LEFT: + index = BUFFER_FRONT_LEFT; + break; + case ST_ATTACHMENT_BACK_LEFT: + index = BUFFER_BACK_LEFT; + break; + case ST_ATTACHMENT_FRONT_RIGHT: + index = BUFFER_FRONT_RIGHT; + break; + case ST_ATTACHMENT_BACK_RIGHT: + index = BUFFER_BACK_RIGHT; + break; + case ST_ATTACHMENT_DEPTH_STENCIL: + index = BUFFER_DEPTH; + break; + case ST_ATTACHMENT_ACCUM: + index = BUFFER_ACCUM; + break; + case ST_ATTACHMENT_SAMPLE: + default: + index = BUFFER_COUNT; + break; + } + + return index; +} + +/** + * Map a buffer index to an attachment. + */ +static INLINE enum st_attachment_type +buffer_index_to_attachment(gl_buffer_index index) +{ + enum st_attachment_type statt; + + switch (index) { + case BUFFER_FRONT_LEFT: + statt = ST_ATTACHMENT_FRONT_LEFT; + break; + case BUFFER_BACK_LEFT: + statt = ST_ATTACHMENT_BACK_LEFT; + break; + case BUFFER_FRONT_RIGHT: + statt = ST_ATTACHMENT_FRONT_RIGHT; + break; + case BUFFER_BACK_RIGHT: + statt = ST_ATTACHMENT_BACK_RIGHT; + break; + case BUFFER_DEPTH: + statt = ST_ATTACHMENT_DEPTH_STENCIL; + break; + case BUFFER_ACCUM: + statt = ST_ATTACHMENT_ACCUM; + break; + default: + statt = ST_ATTACHMENT_INVALID; + break; + } + + return statt; +} + +/** + * Validate a framebuffer to make sure up-to-date pipe_textures are used. + */ +static void +st_framebuffer_validate(struct st_framebuffer *stfb, struct st_context *st) +{ + struct pipe_context *pipe = st->pipe; + struct pipe_resource *textures[ST_ATTACHMENT_COUNT]; + uint width, height; + unsigned i; + boolean changed = FALSE; + + if (!p_atomic_read(&stfb->revalidate)) + return; + + /* validate the fb */ + if (!stfb->iface->validate(stfb->iface, stfb->statts, stfb->num_statts, textures)) + return; + + width = stfb->Base.Width; + height = stfb->Base.Height; + + for (i = 0; i < stfb->num_statts; i++) { + struct st_renderbuffer *strb; + struct pipe_surface *ps, surf_tmpl; + gl_buffer_index idx; + + if (!textures[i]) + continue; + + idx = attachment_to_buffer_index(stfb->statts[i]); + if (idx >= BUFFER_COUNT) { + pipe_resource_reference(&textures[i], NULL); + continue; + } + + strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer); + assert(strb); + if (strb->texture == textures[i]) { + pipe_resource_reference(&textures[i], NULL); + continue; + } + + memset(&surf_tmpl, 0, sizeof(surf_tmpl)); + u_surface_default_template(&surf_tmpl, textures[i], + PIPE_BIND_RENDER_TARGET); + ps = pipe->create_surface(pipe, textures[i], &surf_tmpl); + if (ps) { + pipe_surface_reference(&strb->surface, ps); + pipe_resource_reference(&strb->texture, ps->texture); + /* ownership transfered */ + pipe_surface_reference(&ps, NULL); + + changed = TRUE; + + strb->Base.Width = strb->surface->width; + strb->Base.Height = strb->surface->height; + + width = strb->Base.Width; + height = strb->Base.Height; + } + + pipe_resource_reference(&textures[i], NULL); + } + + if (changed) { + st->dirty.st |= ST_NEW_FRAMEBUFFER; + _mesa_resize_framebuffer(st->ctx, &stfb->Base, width, height); + + assert(stfb->Base.Width == width); + assert(stfb->Base.Height == height); + } + + p_atomic_set(&stfb->revalidate, FALSE); +} + +/** + * Update the attachments to validate by looping the existing renderbuffers. + */ +static void +st_framebuffer_update_attachments(struct st_framebuffer *stfb) +{ + gl_buffer_index idx; + + stfb->num_statts = 0; + for (idx = 0; idx < BUFFER_COUNT; idx++) { + struct st_renderbuffer *strb; + enum st_attachment_type statt; + + strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer); + if (!strb || strb->software) + continue; + + statt = buffer_index_to_attachment(idx); + if (statt != ST_ATTACHMENT_INVALID && + st_visual_have_buffers(stfb->iface->visual, 1 << statt)) + stfb->statts[stfb->num_statts++] = statt; + } + + p_atomic_set(&stfb->revalidate, TRUE); +} + +/** + * Add a renderbuffer to the framebuffer. + */ +static boolean +st_framebuffer_add_renderbuffer(struct st_framebuffer *stfb, + gl_buffer_index idx) +{ + struct gl_renderbuffer *rb; + enum pipe_format format; + int samples; + boolean sw; + + if (!stfb->iface) + return FALSE; + + /* do not distinguish depth/stencil buffers */ + if (idx == BUFFER_STENCIL) + idx = BUFFER_DEPTH; + + switch (idx) { + case BUFFER_DEPTH: + format = stfb->iface->visual->depth_stencil_format; + sw = FALSE; + break; + case BUFFER_ACCUM: + format = stfb->iface->visual->accum_format; + sw = TRUE; + break; + default: + format = stfb->iface->visual->color_format; + sw = FALSE; + break; + } + + if (format == PIPE_FORMAT_NONE) + return FALSE; + + samples = stfb->iface->visual->samples; + if (!samples) + samples = st_get_msaa(); + + rb = st_new_renderbuffer_fb(format, samples, sw); + if (!rb) + return FALSE; + + if (idx != BUFFER_DEPTH) { + _mesa_add_renderbuffer(&stfb->Base, idx, rb); + } + else { + if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0)) + _mesa_add_renderbuffer(&stfb->Base, BUFFER_DEPTH, rb); + if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1)) + _mesa_add_renderbuffer(&stfb->Base, BUFFER_STENCIL, rb); + } + + return TRUE; +} + +/** + * Intialize a struct gl_config from a visual. + */ +static void +st_visual_to_context_mode(const struct st_visual *visual, + struct gl_config *mode) +{ + memset(mode, 0, sizeof(*mode)); + + if (st_visual_have_buffers(visual, ST_ATTACHMENT_BACK_LEFT_MASK)) + mode->doubleBufferMode = GL_TRUE; + if (st_visual_have_buffers(visual, + ST_ATTACHMENT_FRONT_RIGHT_MASK | ST_ATTACHMENT_BACK_RIGHT_MASK)) + mode->stereoMode = GL_TRUE; + + if (visual->color_format != PIPE_FORMAT_NONE) { + mode->rgbMode = GL_TRUE; + + mode->redBits = + util_format_get_component_bits(visual->color_format, + UTIL_FORMAT_COLORSPACE_RGB, 0); + mode->greenBits = + util_format_get_component_bits(visual->color_format, + UTIL_FORMAT_COLORSPACE_RGB, 1); + mode->blueBits = + util_format_get_component_bits(visual->color_format, + UTIL_FORMAT_COLORSPACE_RGB, 2); + mode->alphaBits = + util_format_get_component_bits(visual->color_format, + UTIL_FORMAT_COLORSPACE_RGB, 3); + + mode->rgbBits = mode->redBits + + mode->greenBits + mode->blueBits + mode->alphaBits; + } + + if (visual->depth_stencil_format != PIPE_FORMAT_NONE) { + mode->depthBits = + util_format_get_component_bits(visual->depth_stencil_format, + UTIL_FORMAT_COLORSPACE_ZS, 0); + mode->stencilBits = + util_format_get_component_bits(visual->depth_stencil_format, + UTIL_FORMAT_COLORSPACE_ZS, 1); + + mode->haveDepthBuffer = mode->depthBits > 0; + mode->haveStencilBuffer = mode->stencilBits > 0; + } + + if (visual->accum_format != PIPE_FORMAT_NONE) { + mode->haveAccumBuffer = GL_TRUE; + + mode->accumRedBits = + util_format_get_component_bits(visual->accum_format, + UTIL_FORMAT_COLORSPACE_RGB, 0); + mode->accumGreenBits = + util_format_get_component_bits(visual->accum_format, + UTIL_FORMAT_COLORSPACE_RGB, 1); + mode->accumBlueBits = + util_format_get_component_bits(visual->accum_format, + UTIL_FORMAT_COLORSPACE_RGB, 2); + mode->accumAlphaBits = + util_format_get_component_bits(visual->accum_format, + UTIL_FORMAT_COLORSPACE_RGB, 3); + } + + if (visual->samples) { + mode->sampleBuffers = 1; + mode->samples = visual->samples; + } +} + +/** + * Determine the default draw or read buffer from a visual. + */ +static void +st_visual_to_default_buffer(const struct st_visual *visual, + GLenum *buffer, GLint *index) +{ + enum st_attachment_type statt; + GLenum buf; + gl_buffer_index idx; + + statt = visual->render_buffer; + /* do nothing if an invalid render buffer is specified */ + if (statt == ST_ATTACHMENT_INVALID || + !st_visual_have_buffers(visual, 1 << statt)) + return; + + switch (statt) { + case ST_ATTACHMENT_FRONT_LEFT: + buf = GL_FRONT_LEFT; + idx = BUFFER_FRONT_LEFT; + break; + case ST_ATTACHMENT_BACK_LEFT: + buf = GL_BACK_LEFT; + idx = BUFFER_BACK_LEFT; + break; + case ST_ATTACHMENT_FRONT_RIGHT: + buf = GL_FRONT_RIGHT; + idx = BUFFER_FRONT_RIGHT; + break; + case ST_ATTACHMENT_BACK_RIGHT: + buf = GL_BACK_RIGHT; + idx = BUFFER_BACK_RIGHT; + break; + default: + buf = GL_NONE; + idx = BUFFER_COUNT; + break; + } + + if (buf != GL_NONE) { + if (buffer) + *buffer = buf; + if (index) + *index = idx; + } +} + +/** + * Create a framebuffer from a manager interface. + */ +static struct st_framebuffer * +st_framebuffer_create(struct st_framebuffer_iface *stfbi) +{ + struct st_framebuffer *stfb; + struct gl_config mode; + gl_buffer_index idx; + + if (!stfbi) + return NULL; + + stfb = CALLOC_STRUCT(st_framebuffer); + if (!stfb) + return NULL; + + st_visual_to_context_mode(stfbi->visual, &mode); + _mesa_initialize_window_framebuffer(&stfb->Base, &mode); + + /* modify the draw/read buffers of the fb */ + st_visual_to_default_buffer(stfbi->visual, &stfb->Base.ColorDrawBuffer[0], + &stfb->Base._ColorDrawBufferIndexes[0]); + st_visual_to_default_buffer(stfbi->visual, &stfb->Base.ColorReadBuffer, + &stfb->Base._ColorReadBufferIndex); + + stfb->iface = stfbi; + + /* add the color buffer */ + idx = stfb->Base._ColorDrawBufferIndexes[0]; + if (!st_framebuffer_add_renderbuffer(stfb, idx)) { + FREE(stfb); + return NULL; + } + + st_framebuffer_add_renderbuffer(stfb, BUFFER_DEPTH); + st_framebuffer_add_renderbuffer(stfb, BUFFER_ACCUM); + + st_framebuffer_update_attachments(stfb); + + stfb->Base.Initialized = GL_TRUE; + + return stfb; +} + +/** + * Reference a framebuffer. + */ +static void +st_framebuffer_reference(struct st_framebuffer **ptr, + struct st_framebuffer *stfb) +{ + struct gl_framebuffer *fb = &stfb->Base; + _mesa_reference_framebuffer((struct gl_framebuffer **) ptr, fb); +} + +static void +st_context_notify_invalid_framebuffer(struct st_context_iface *stctxi, + struct st_framebuffer_iface *stfbi) +{ + struct st_context *st = (struct st_context *) stctxi; + struct st_framebuffer *stfb; + + /* either draw or read winsys fb */ + stfb = st_ws_framebuffer(st->ctx->WinSysDrawBuffer); + if (!stfb || stfb->iface != stfbi) + stfb = st_ws_framebuffer(st->ctx->WinSysReadBuffer); + + if (stfb && stfb->iface == stfbi) { + p_atomic_set(&stfb->revalidate, TRUE); + } + else { + /* This function is probably getting called when we've detected a + * change in a window's size but the currently bound context is + * not bound to that window. + * If the st_framebuffer_iface structure had a pointer to the + * corresponding st_framebuffer we'd be able to handle this. + */ + } +} + +static void +st_context_flush(struct st_context_iface *stctxi, unsigned flags, + struct pipe_fence_handle **fence) +{ + struct st_context *st = (struct st_context *) stctxi; + st_flush(st, fence); + if (flags & ST_FLUSH_FRONT) + st_manager_flush_frontbuffer(st); +} + +static boolean +st_context_teximage(struct st_context_iface *stctxi, + enum st_texture_type target, + int level, enum pipe_format internal_format, + struct pipe_resource *tex, boolean mipmap) +{ + struct st_context *st = (struct st_context *) stctxi; + struct gl_context *ctx = st->ctx; + struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); + struct gl_texture_object *texObj; + struct gl_texture_image *texImage; + struct st_texture_object *stObj; + struct st_texture_image *stImage; + GLenum internalFormat; + GLuint width, height, depth; + + switch (target) { + case ST_TEXTURE_1D: + target = GL_TEXTURE_1D; + break; + case ST_TEXTURE_2D: + target = GL_TEXTURE_2D; + break; + case ST_TEXTURE_3D: + target = GL_TEXTURE_3D; + break; + case ST_TEXTURE_RECT: + target = GL_TEXTURE_RECTANGLE_ARB; + break; + default: + return FALSE; + break; + } + + texObj = _mesa_select_tex_object(ctx, texUnit, target); + _mesa_lock_texture(ctx, texObj); + + stObj = st_texture_object(texObj); + /* switch to surface based */ + if (!stObj->surface_based) { + _mesa_clear_texture_object(ctx, texObj); + stObj->surface_based = GL_TRUE; + } + + texImage = _mesa_get_tex_image(ctx, texObj, target, level); + stImage = st_texture_image(texImage); + if (tex) { + gl_format texFormat; + + /* + * XXX When internal_format and tex->format differ, st_finalize_texture + * needs to allocate a new texture with internal_format and copy the + * texture here into the new one. It will result in surface_copy being + * called on surfaces whose formats differ. + * + * To avoid that, internal_format is (wrongly) ignored here. A sane fix + * is to use a sampler view. + */ + if (!st_sampler_compat_formats(tex->format, internal_format)) + internal_format = tex->format; + + if (util_format_get_component_bits(internal_format, + UTIL_FORMAT_COLORSPACE_RGB, 3) > 0) + internalFormat = GL_RGBA; + else + internalFormat = GL_RGB; + + texFormat = st_ChooseTextureFormat(ctx, internalFormat, + GL_RGBA, GL_UNSIGNED_BYTE); + + _mesa_init_teximage_fields(ctx, target, texImage, + tex->width0, tex->height0, 1, 0, + internalFormat, texFormat); + + width = tex->width0; + height = tex->height0; + depth = tex->depth0; + + /* grow the image size until we hit level = 0 */ + while (level > 0) { + if (width != 1) + width <<= 1; + if (height != 1) + height <<= 1; + if (depth != 1) + depth <<= 1; + level--; + } + } + else { + _mesa_clear_texture_image(ctx, texImage); + width = height = depth = 0; + } + + pipe_resource_reference(&stImage->pt, tex); + stObj->width0 = width; + stObj->height0 = height; + stObj->depth0 = depth; + + _mesa_dirty_texobj(ctx, texObj, GL_TRUE); + _mesa_unlock_texture(ctx, texObj); + + return TRUE; +} + +static void +st_context_copy(struct st_context_iface *stctxi, + struct st_context_iface *stsrci, unsigned mask) +{ + struct st_context *st = (struct st_context *) stctxi; + struct st_context *src = (struct st_context *) stsrci; + + _mesa_copy_context(src->ctx, st->ctx, mask); +} + +static boolean +st_context_share(struct st_context_iface *stctxi, + struct st_context_iface *stsrci) +{ + struct st_context *st = (struct st_context *) stctxi; + struct st_context *src = (struct st_context *) stsrci; + + return _mesa_share_state(st->ctx, src->ctx); +} + +static void +st_context_destroy(struct st_context_iface *stctxi) +{ + struct st_context *st = (struct st_context *) stctxi; + st_destroy_context(st); +} + +static struct st_context_iface * +st_api_create_context(struct st_api *stapi, struct st_manager *smapi, + const struct st_context_attribs *attribs, + struct st_context_iface *shared_stctxi) +{ + struct st_context *shared_ctx = (struct st_context *) shared_stctxi; + struct st_context *st; + struct pipe_context *pipe; + struct gl_config mode; + gl_api api; + + if (!(stapi->profile_mask & (1 << attribs->profile))) + return NULL; + + switch (attribs->profile) { + case ST_PROFILE_DEFAULT: + api = API_OPENGL; + break; + case ST_PROFILE_OPENGL_ES1: + api = API_OPENGLES; + break; + case ST_PROFILE_OPENGL_ES2: + api = API_OPENGLES2; + break; + case ST_PROFILE_OPENGL_CORE: + default: + return NULL; + break; + } + + pipe = smapi->screen->context_create(smapi->screen, NULL); + if (!pipe) + return NULL; + + st_visual_to_context_mode(&attribs->visual, &mode); + st = st_create_context(api, pipe, &mode, shared_ctx); + if (!st) { + pipe->destroy(pipe); + return NULL; + } + + /* need to perform version check */ + if (attribs->major > 1 || attribs->minor > 0) { + _mesa_compute_version(st->ctx); + + /* is the actual version less than the requested version? */ + if (st->ctx->VersionMajor * 10 + st->ctx->VersionMinor < + attribs->major * 10 + attribs->minor) { + st_destroy_context(st); + return NULL; + } + } + + st->invalidate_on_gl_viewport = + smapi->get_param(smapi, ST_MANAGER_BROKEN_INVALIDATE); + + st->iface.destroy = st_context_destroy; + st->iface.notify_invalid_framebuffer = + st_context_notify_invalid_framebuffer; + st->iface.flush = st_context_flush; + st->iface.teximage = st_context_teximage; + st->iface.copy = st_context_copy; + st->iface.share = st_context_share; + st->iface.st_context_private = (void *) smapi; + + return &st->iface; +} + +static boolean +st_api_make_current(struct st_api *stapi, struct st_context_iface *stctxi, + struct st_framebuffer_iface *stdrawi, + struct st_framebuffer_iface *streadi) +{ + struct st_context *st = (struct st_context *) stctxi; + struct st_framebuffer *stdraw, *stread, *stfb; + boolean ret; + + _glapi_check_multithread(); + + if (st) { + /* reuse/create the draw fb */ + stfb = st_ws_framebuffer(st->ctx->WinSysDrawBuffer); + if (stfb && stfb->iface == stdrawi) { + stdraw = NULL; + st_framebuffer_reference(&stdraw, stfb); + } + else { + stdraw = st_framebuffer_create(stdrawi); + } + + /* reuse/create the read fb */ + stfb = st_ws_framebuffer(st->ctx->WinSysReadBuffer); + if (!stfb || stfb->iface != streadi) + stfb = stdraw; + if (stfb && stfb->iface == streadi) { + stread = NULL; + st_framebuffer_reference(&stread, stfb); + } + else { + stread = st_framebuffer_create(streadi); + } + + if (stdraw && stread) { + st_framebuffer_validate(stdraw, st); + if (stread != stdraw) + st_framebuffer_validate(stread, st); + + /* modify the draw/read buffers of the context */ + if (stdraw->iface) { + st_visual_to_default_buffer(stdraw->iface->visual, + &st->ctx->Color.DrawBuffer[0], NULL); + } + if (stread->iface) { + st_visual_to_default_buffer(stread->iface->visual, + &st->ctx->Pixel.ReadBuffer, NULL); + } + + ret = _mesa_make_current(st->ctx, &stdraw->Base, &stread->Base); + } + else { + struct gl_framebuffer *incomplete = _mesa_get_incomplete_framebuffer(); + ret = _mesa_make_current(st->ctx, incomplete, incomplete); + } + + st_framebuffer_reference(&stdraw, NULL); + st_framebuffer_reference(&stread, NULL); + } + else { + ret = _mesa_make_current(NULL, NULL, NULL); + } + + return ret; +} + +static struct st_context_iface * +st_api_get_current(struct st_api *stapi) +{ + GET_CURRENT_CONTEXT(ctx); + struct st_context *st = (ctx) ? ctx->st : NULL; + + return (st) ? &st->iface : NULL; +} + +static st_proc_t +st_api_get_proc_address(struct st_api *stapi, const char *procname) +{ + return (st_proc_t) _glapi_get_proc_address(procname); +} + +static void +st_api_destroy(struct st_api *stapi) +{ +} + +/** + * Flush the front buffer if the current context renders to the front buffer. + */ +void +st_manager_flush_frontbuffer(struct st_context *st) +{ + struct st_framebuffer *stfb = st_ws_framebuffer(st->ctx->DrawBuffer); + struct st_renderbuffer *strb = NULL; + + if (stfb) + strb = st_renderbuffer(stfb->Base.Attachment[BUFFER_FRONT_LEFT].Renderbuffer); + if (!strb) + return; + + /* never a dummy fb */ + assert(stfb->iface); + stfb->iface->flush_front(stfb->iface, ST_ATTACHMENT_FRONT_LEFT); +} + +/** + * Return the surface of an EGLImage. + * FIXME: I think this should operate on resources, not surfaces + */ +struct pipe_surface * +st_manager_get_egl_image_surface(struct st_context *st, + void *eglimg, unsigned usage) +{ + struct st_manager *smapi = + (struct st_manager *) st->iface.st_context_private; + struct st_egl_image stimg; + struct pipe_surface *ps, surf_tmpl; + + if (!smapi || !smapi->get_egl_image) + return NULL; + + memset(&stimg, 0, sizeof(stimg)); + if (!smapi->get_egl_image(smapi, eglimg, &stimg)) + return NULL; + + memset(&surf_tmpl, 0, sizeof(surf_tmpl)); + surf_tmpl.format = stimg.texture->format; + surf_tmpl.usage = usage; + surf_tmpl.u.tex.level = stimg.level; + surf_tmpl.u.tex.first_layer = stimg.layer; + surf_tmpl.u.tex.last_layer = stimg.layer; + ps = st->pipe->create_surface(st->pipe, stimg.texture, &surf_tmpl); + pipe_resource_reference(&stimg.texture, NULL); + + return ps; +} + +/** + * Re-validate the framebuffers. + */ +void +st_manager_validate_framebuffers(struct st_context *st) +{ + struct st_framebuffer *stdraw = st_ws_framebuffer(st->ctx->DrawBuffer); + struct st_framebuffer *stread = st_ws_framebuffer(st->ctx->ReadBuffer); + + if (stdraw) + st_framebuffer_validate(stdraw, st); + if (stread && stread != stdraw) + st_framebuffer_validate(stread, st); +} + +/** + * Add a color renderbuffer on demand. + */ +boolean +st_manager_add_color_renderbuffer(struct st_context *st, + struct gl_framebuffer *fb, + gl_buffer_index idx) +{ + struct st_framebuffer *stfb = st_ws_framebuffer(fb); + + /* FBO */ + if (!stfb) + return FALSE; + + if (stfb->Base.Attachment[idx].Renderbuffer) + return TRUE; + + switch (idx) { + case BUFFER_FRONT_LEFT: + case BUFFER_BACK_LEFT: + case BUFFER_FRONT_RIGHT: + case BUFFER_BACK_RIGHT: + break; + default: + return FALSE; + break; + } + + if (!st_framebuffer_add_renderbuffer(stfb, idx)) + return FALSE; + + st_framebuffer_update_attachments(stfb); + st_invalidate_state(st->ctx, _NEW_BUFFERS); + + return TRUE; +} + +static const struct st_api st_gl_api = { + "Mesa " MESA_VERSION_STRING, + ST_API_OPENGL, +#if FEATURE_GL + ST_PROFILE_DEFAULT_MASK | +#endif +#if FEATURE_ES1 + ST_PROFILE_OPENGL_ES1_MASK | +#endif +#if FEATURE_ES2 + ST_PROFILE_OPENGL_ES2_MASK | +#endif + 0, + st_api_destroy, + st_api_get_proc_address, + st_api_create_context, + st_api_make_current, + st_api_get_current, +}; + +struct st_api * +st_gl_api_create(void) +{ + return (struct st_api *) &st_gl_api; +} diff --git a/mesalib/src/mesa/state_tracker/st_texture.c b/mesalib/src/mesa/state_tracker/st_texture.c index 0d5dc8140..22ec1306c 100644 --- a/mesalib/src/mesa/state_tracker/st_texture.c +++ b/mesalib/src/mesa/state_tracker/st_texture.c @@ -78,7 +78,7 @@ st_texture_create(struct st_context *st, assert(format); assert(screen->is_format_supported(screen, format, target, 0, - PIPE_BIND_SAMPLER_VIEW, 0)); + PIPE_BIND_SAMPLER_VIEW)); memset(&pt, 0, sizeof(pt)); pt.target = target; diff --git a/mesalib/src/mesa/swrast/s_aatriangle.c b/mesalib/src/mesa/swrast/s_aatriangle.c index ba92fc14a..07667226a 100644 --- a/mesalib/src/mesa/swrast/s_aatriangle.c +++ b/mesalib/src/mesa/swrast/s_aatriangle.c @@ -33,6 +33,7 @@ #include "main/colormac.h" #include "main/macros.h" #include "main/imports.h" +#include "main/state.h" #include "s_aatriangle.h" #include "s_context.h" #include "s_span.h" @@ -305,7 +306,7 @@ _swrast_set_aa_triangle_function(struct gl_context *ctx) if (ctx->Texture._EnabledCoordUnits != 0 || ctx->FragmentProgram._Current || swrast->_FogEnabled - || NEED_SECONDARY_COLOR(ctx)) { + || _mesa_need_secondary_color(ctx)) { SWRAST_CONTEXT(ctx)->Triangle = general_aa_tri; } else { diff --git a/mesalib/src/mesa/swrast/s_triangle.c b/mesalib/src/mesa/swrast/s_triangle.c index 10a1dc1c1..c2c1ce221 100644 --- a/mesalib/src/mesa/swrast/s_triangle.c +++ b/mesalib/src/mesa/swrast/s_triangle.c @@ -35,6 +35,7 @@ #include "main/imports.h" #include "main/macros.h" #include "main/mtypes.h" +#include "main/state.h" #include "program/prog_instruction.h" #include "s_aatriangle.h" @@ -1032,7 +1033,7 @@ _swrast_choose_triangle( struct gl_context *ctx ) if (ctx->Texture._EnabledCoordUnits || ctx->FragmentProgram._Current || ctx->ATIFragmentShader._Enabled || - NEED_SECONDARY_COLOR(ctx) || + _mesa_need_secondary_color(ctx) || swrast->_FogEnabled) { /* Ugh, we do a _lot_ of tests to pick the best textured tri func */ const struct gl_texture_object *texObj2D; @@ -1113,7 +1114,7 @@ _swrast_choose_triangle( struct gl_context *ctx ) } else { ASSERT(!swrast->_FogEnabled); - ASSERT(!NEED_SECONDARY_COLOR(ctx)); + ASSERT(!_mesa_need_secondary_color(ctx)); if (ctx->Light.ShadeModel==GL_SMOOTH) { /* smooth shaded, no texturing, stippled or some raster ops */ #if CHAN_BITS != 8 diff --git a/mesalib/src/mesa/tnl/t_context.c b/mesalib/src/mesa/tnl/t_context.c index f27f2d090..9faa54fdf 100644 --- a/mesalib/src/mesa/tnl/t_context.c +++ b/mesalib/src/mesa/tnl/t_context.c @@ -34,6 +34,7 @@ #include "main/light.h" #include "math/m_translate.h" #include "math/m_xform.h" +#include "main/state.h" #include "tnl.h" #include "t_context.h" @@ -127,7 +128,7 @@ _tnl_InvalidateState( struct gl_context *ctx, GLuint new_state ) RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR0 ); } - if (NEED_SECONDARY_COLOR(ctx)) + if (_mesa_need_secondary_color(ctx)) RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR1 ); for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) { -- cgit v1.2.3