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Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/main/texenvprogram.c')
-rw-r--r--nx-X11/extras/Mesa/src/mesa/main/texenvprogram.c1165
1 files changed, 0 insertions, 1165 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/main/texenvprogram.c b/nx-X11/extras/Mesa/src/mesa/main/texenvprogram.c
deleted file mode 100644
index 4cb97469a..000000000
--- a/nx-X11/extras/Mesa/src/mesa/main/texenvprogram.c
+++ /dev/null
@@ -1,1165 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2003 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 "glheader.h"
-#include "macros.h"
-#include "enums.h"
-#include "texenvprogram.h"
-
-#include "shader/program.h"
-#include "shader/nvfragprog.h"
-#include "shader/arbfragparse.h"
-
-
-#define DISASSEM (MESA_VERBOSE & VERBOSE_DISASSEM)
-
-struct mode_opt {
- unsigned Source:4;
- unsigned Operand:3;
-};
-
-struct state_key {
- GLuint enabled_units;
- unsigned separate_specular:1;
- unsigned fog_enabled:1;
- unsigned fog_mode:2;
-
- struct {
- unsigned enabled:1;
- unsigned source_index:3;
- unsigned ScaleShiftRGB:2;
- unsigned ScaleShiftA:2;
-
- unsigned NumArgsRGB:2;
- unsigned ModeRGB:4;
- struct mode_opt OptRGB[3];
-
- unsigned NumArgsA:2;
- unsigned ModeA:4;
- struct mode_opt OptA[3];
- } unit[8];
-};
-
-#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: 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_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;
- default: return SRC_UNKNOWN;
- }
-}
-
-#define MODE_REPLACE 0
-#define MODE_MODULATE 1
-#define MODE_ADD 2
-#define MODE_ADD_SIGNED 3
-#define MODE_INTERPOLATE 4
-#define MODE_SUBTRACT 5
-#define MODE_DOT3_RGB 6
-#define MODE_DOT3_RGB_EXT 7
-#define MODE_DOT3_RGBA 8
-#define MODE_DOT3_RGBA_EXT 9
-#define MODE_MODULATE_ADD_ATI 10
-#define MODE_MODULATE_SIGNED_ADD_ATI 11
-#define MODE_MODULATE_SUBTRACT_ATI 12
-#define MODE_UNKNOWN 15
-
-static GLuint translate_mode( GLenum mode )
-{
- switch (mode) {
- case GL_REPLACE: return MODE_REPLACE;
- case GL_MODULATE: return MODE_MODULATE;
- case GL_ADD: return MODE_ADD;
- case GL_ADD_SIGNED: 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;
- default: return MODE_UNKNOWN;
- }
-}
-
-#define TEXTURE_UNKNOWN_INDEX 7
-static GLuint translate_tex_src_bit( GLuint bit )
-{
- switch (bit) {
- case TEXTURE_1D_BIT: return TEXTURE_1D_INDEX;
- case TEXTURE_2D_BIT: return TEXTURE_2D_INDEX;
- case TEXTURE_RECT_BIT: return TEXTURE_RECT_INDEX;
- case TEXTURE_3D_BIT: return TEXTURE_3D_INDEX;
- case TEXTURE_CUBE_BIT: return TEXTURE_CUBE_INDEX;
- default: return TEXTURE_UNKNOWN_INDEX;
- }
-}
-
-static struct state_key *make_state_key( GLcontext *ctx )
-{
- struct state_key *key = CALLOC_STRUCT(state_key);
- GLuint i, j;
-
- for (i=0;i<MAX_TEXTURE_UNITS;i++) {
- struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i];
-
- if (!texUnit->_ReallyEnabled)
- continue;
-
- key->unit[i].enabled = 1;
- key->enabled_units |= (1<<i);
-
- key->unit[i].source_index =
- translate_tex_src_bit(texUnit->_ReallyEnabled);
-
- key->unit[i].NumArgsRGB = texUnit->_CurrentCombine->_NumArgsRGB;
- key->unit[i].NumArgsA = texUnit->_CurrentCombine->_NumArgsA;
-
- key->unit[i].ModeRGB =
- translate_mode(texUnit->_CurrentCombine->ModeRGB);
- key->unit[i].ModeA =
- translate_mode(texUnit->_CurrentCombine->ModeA);
-
- key->unit[i].ScaleShiftRGB = texUnit->_CurrentCombine->ScaleShiftRGB;
- key->unit[i].ScaleShiftA = texUnit->_CurrentCombine->ScaleShiftRGB;
-
- for (j=0;j<3;j++) {
- key->unit[i].OptRGB[j].Operand =
- translate_operand(texUnit->_CurrentCombine->OperandRGB[j]);
- key->unit[i].OptA[j].Operand =
- translate_operand(texUnit->_CurrentCombine->OperandA[j]);
- key->unit[i].OptRGB[j].Source =
- translate_source(texUnit->_CurrentCombine->SourceRGB[j]);
- key->unit[i].OptA[j].Source =
- translate_source(texUnit->_CurrentCombine->SourceA[j]);
- }
- }
-
- if (ctx->_TriangleCaps & DD_SEPARATE_SPECULAR)
- key->separate_specular = 1;
-
- if (ctx->Fog.Enabled) {
- key->fog_enabled = 1;
- key->fog_mode = translate_fog_mode(ctx->Fog.Mode);
- }
-
- return key;
-}
-
-/* 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 abs:1;
- GLuint negateabs:1;
- GLuint swz:12;
- GLuint pad:5;
-};
-
-const static struct ureg undef = {
- ~0,
- ~0,
- 0,
- 0,
- 0,
- 0,
- 0
-};
-
-#define X 0
-#define Y 1
-#define Z 2
-#define W 3
-
-/* State used to build the fragment program:
- */
-struct texenv_fragment_program {
- struct fragment_program *program;
- GLcontext *ctx;
- struct state_key *state;
-
- GLuint alu_temps; /* Track texture indirections, see spec. */
- GLuint temps_output; /* Track texture indirections, see spec. */
-
- GLuint temp_in_use; /* Tracks temporary regs which are in
- * use.
- */
-
-
- GLboolean error;
-
- struct ureg src_texture[MAX_TEXTURE_UNITS];
- /* Reg containing each texture unit's sampled texture color,
- * 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.abs = 0;
- reg.negateabs = 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 == 0xf;
-}
-
-
-static struct ureg get_temp( struct texenv_fragment_program *p )
-{
- int bit;
-
- /* First try and reuse temps which have been used already:
- */
- bit = ffs( ~p->temp_in_use & p->alu_temps );
-
- /* Then any unused temporary:
- */
- if (!bit)
- bit = ffs( ~p->temp_in_use );
-
- if (!bit) {
- _mesa_problem(NULL, "%s: out of temporaries\n", __FILE__);
- exit(1);
- }
-
- 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 availble 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 = ffs( ~p->temp_in_use & ~p->alu_temps & ~p->temps_output );
-
- /* Then any unused temporary:
- */
- if (!bit)
- bit = ffs( ~p->temp_in_use );
-
- if (!bit) {
- _mesa_problem(NULL, "%s: out of temporaries\n", __FILE__);
- exit(1);
- }
-
- p->temp_in_use |= 1<<(bit-1);
- return make_ureg(PROGRAM_TEMPORARY, (bit-1));
-}
-
-
-static void release_temps( struct texenv_fragment_program *p )
-{
- GLuint max_temp = p->ctx->Const.MaxFragmentProgramTemps;
-
- /* 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<<max_temp)-1) | p->temps_output;
-}
-
-
-static struct ureg register_param6( struct texenv_fragment_program *p,
- GLint s0,
- GLint s1,
- GLint s2,
- GLint s3,
- GLint s4,
- GLint s5)
-{
- GLint tokens[6];
- GLuint idx;
- tokens[0] = s0;
- tokens[1] = s1;
- tokens[2] = s2;
- tokens[3] = s3;
- tokens[4] = s4;
- tokens[5] = s5;
- idx = _mesa_add_state_reference( p->program->Parameters, tokens );
- return make_ureg(PROGRAM_STATE_VAR, idx);
-}
-
-
-#define register_param1(p,s0) register_param6(p,s0,0,0,0,0,0)
-#define register_param2(p,s0,s1) register_param6(p,s0,s1,0,0,0,0)
-#define register_param3(p,s0,s1,s2) register_param6(p,s0,s1,s2,0,0,0)
-#define register_param4(p,s0,s1,s2,s3) register_param6(p,s0,s1,s2,s3,0,0)
-
-
-static struct ureg register_input( struct texenv_fragment_program *p, GLuint input )
-{
- p->program->InputsRead |= (1<<input);
- return make_ureg(PROGRAM_INPUT, input);
-}
-
-
-static void emit_arg( struct fp_src_register *reg,
- struct ureg ureg )
-{
- reg->File = ureg.file;
- reg->Index = ureg.idx;
- reg->Swizzle = ureg.swz;
- reg->NegateBase = ureg.negatebase;
- reg->Abs = ureg.abs;
- reg->NegateAbs = ureg.negateabs;
-}
-
-static void emit_dst( struct fp_dst_register *dst,
- struct ureg ureg, GLuint mask )
-{
- dst->File = ureg.file;
- dst->Index = ureg.idx;
- dst->WriteMask = mask;
- dst->CondMask = 0;
- dst->CondSwizzle = 0;
-}
-
-static struct fp_instruction *
-emit_op(struct texenv_fragment_program *p,
- GLuint op,
- struct ureg dest,
- GLuint mask,
- GLuint saturate,
- struct ureg src0,
- struct ureg src1,
- struct ureg src2 )
-{
- GLuint nr = p->program->Base.NumInstructions++;
- struct fp_instruction *inst = &p->program->Instructions[nr];
-
- memset(inst, 0, sizeof(*inst));
- inst->Opcode = op;
-
- emit_arg( &inst->SrcReg[0], src0 );
- emit_arg( &inst->SrcReg[1], src1 );
- emit_arg( &inst->SrcReg[2], src2 );
-
- inst->Saturate = saturate;
-
- emit_dst( &inst->DstReg, dest, mask );
-
- /* Accounting for indirection tracking:
- */
- if (dest.file == PROGRAM_TEMPORARY)
- p->temps_output |= 1 << dest.idx;
-
- return inst;
-}
-
-
-static struct ureg emit_arith( struct texenv_fragment_program *p,
- GLuint op,
- struct ureg dest,
- GLuint mask,
- GLuint 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->NumAluInstructions++;
- return dest;
-}
-
-static struct ureg emit_texld( struct texenv_fragment_program *p,
- GLuint op,
- struct ureg dest,
- GLuint destmask,
- GLuint tex_unit,
- GLuint tex_idx,
- struct ureg coord )
-{
- struct fp_instruction *inst = emit_op( p, op,
- dest, destmask,
- 0, /* don't saturate? */
- coord, /* arg 0? */
- undef,
- undef);
-
- inst->TexSrcIdx = tex_idx;
- inst->TexSrcUnit = tex_unit;
-
- p->program->NumTexInstructions++;
-
- /* Is this a texture indirection?
- */
- if ((coord.file == PROGRAM_TEMPORARY &&
- (p->temps_output & (1<<coord.idx))) ||
- (dest.file == PROGRAM_TEMPORARY &&
- (p->alu_temps & (1<<dest.idx)))) {
- p->program->NumTexIndirections++;
- p->temps_output = 1<<coord.idx;
- p->alu_temps = 0;
- assert(0); /* KW: texture env crossbar */
- }
-
- 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;
- values[0] = s0;
- values[1] = s1;
- values[2] = s2;
- values[3] = s3;
- idx = _mesa_add_unnamed_constant( p->program->Parameters, values );
- return make_ureg(PROGRAM_STATE_VAR, idx);
-}
-
-#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->one = 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->one = register_scalar_const(p, 0.0);
- return p->zero;
-}
-
-
-
-
-
-static void program_error( struct texenv_fragment_program *p, const char *msg )
-{
- _mesa_problem(NULL, 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_PREVIOUS:
- default:
- if (is_undef(p->src_previous))
- return register_input(p, FRAG_ATTRIB_COL0);
- else
- return p->src_previous;
- }
-}
-
-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, FP_OPCODE_SUB, arg, mask, 0, one, src, undef);
-
- case OPR_SRC_ALPHA:
- if (mask == WRITEMASK_W)
- return src;
- else
- return swizzle1( src, 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, FP_OPCODE_SUB, arg, mask, 0,
- one, swizzle1(src, W), undef);
- case OPR_ZERO:
- return get_zero(p);
- case OPR_ONE:
- return get_one(p);
- case OPR_SRC_COLOR:
- default:
- return src;
- }
-}
-
-static GLboolean args_match( struct state_key *key, GLuint unit )
-{
- int i, nr = key->unit[unit].NumArgsRGB;
-
- for (i = 0 ; i < nr ; 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,
- GLuint saturate,
- GLuint unit,
- GLuint nr,
- GLuint mode,
- struct mode_opt *opt)
-{
- struct ureg src[3];
- struct ureg tmp, half;
- int i;
-
- 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, FP_OPCODE_MOV, dest, mask, saturate, src[0], undef, undef );
- case MODE_MODULATE:
- return emit_arith( p, FP_OPCODE_MUL, dest, mask, saturate,
- src[0], src[1], undef );
- case MODE_ADD:
- return emit_arith( p, FP_OPCODE_ADD, dest, mask, saturate,
- src[0], src[1], undef );
- case MODE_ADD_SIGNED:
- /* tmp = arg0 + arg1
- * result = tmp - .5
- */
- half = get_half(p);
- emit_arith( p, FP_OPCODE_ADD, tmp, mask, 0, src[0], src[1], undef );
- emit_arith( p, FP_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, FP_OPCODE_LRP, dest, mask, saturate, src[2], src[0], src[1] );
-
- case MODE_SUBTRACT:
- return emit_arith( p, FP_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, FP_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, FP_OPCODE_MAD, tmp1, WRITEMASK_XYZW, 0,
- two, src[1], neg1);
- emit_arith( p, FP_OPCODE_DP3, dest, mask, saturate, tmp0, tmp1, undef);
- return dest;
- }
- case MODE_MODULATE_ADD_ATI:
- /* Arg0 * Arg2 + Arg1 */
- return emit_arith( p, FP_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, FP_OPCODE_MAD, tmp0, mask, 0, src[0], src[2], src[1] );
- emit_arith( p, FP_OPCODE_SUB, dest, mask, saturate, tmp0, half, undef );
- return dest;
- }
- case MODE_MODULATE_SUBTRACT_ATI:
- /* Arg0 * Arg2 - Arg1 */
- emit_arith( p, FP_OPCODE_MAD, dest, mask, 0, src[0], src[2], negate(src[1]) );
- return dest;
- default:
- return src[0];
- }
-}
-
-
-static struct ureg emit_texenv( struct texenv_fragment_program *p, int unit )
-{
- struct state_key *key = p->state;
- GLuint saturate = (unit < p->last_tex_stage);
- GLuint rgb_shift, alpha_shift;
- struct ureg out, shift;
- struct ureg dest;
-
- if (!key->unit[unit].enabled) {
- 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 this is the very last calculation, emit direct to output reg:
- */
- if (key->separate_specular ||
- unit != p->last_tex_stage ||
- alpha_shift ||
- rgb_shift)
- dest = get_temp( p );
- else
- dest = make_ureg(PROGRAM_OUTPUT, FRAG_OUTPUT_COLR);
-
- /* 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, 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].ModeA == MODE_DOT3_RGBA) {
-
- out = emit_combine( p, dest, WRITEMASK_XYZW, 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, saturate,
- unit,
- key->unit[unit].NumArgsRGB,
- key->unit[unit].ModeRGB,
- key->unit[unit].OptRGB);
- out = emit_combine( p, dest, WRITEMASK_W, saturate,
- unit,
- key->unit[unit].NumArgsA,
- key->unit[unit].ModeA,
- key->unit[unit].OptA);
- }
-
- /* Deal with the final shift:
- */
- if (alpha_shift || rgb_shift) {
- if (rgb_shift == alpha_shift) {
- shift = register_scalar_const(p, 1<<rgb_shift);
- }
- else {
- shift = register_const4f(p,
- 1<<rgb_shift,
- 1<<rgb_shift,
- 1<<rgb_shift,
- 1<<alpha_shift);
- }
- return emit_arith( p, FP_OPCODE_MUL, dest, WRITEMASK_XYZW,
- saturate, out, shift, undef );
- }
- else
- return out;
-}
-
-
-
-static void load_texture( struct texenv_fragment_program *p, GLuint unit )
-{
- if (is_undef(p->src_texture[unit])) {
- GLuint dim = p->state->unit[unit].source_index;
- struct ureg texcoord = register_input(p, FRAG_ATTRIB_TEX0+unit);
- struct ureg tmp = get_tex_temp( p );
-
- if (dim == TEXTURE_UNKNOWN_INDEX)
- program_error(p, "TexSrcBit");
-
- /* TODO: Use D0_MASK_XY where possible.
- */
- p->src_texture[unit] = emit_texld( p, FP_OPCODE_TXP,
- tmp, WRITEMASK_XYZW,
- unit, dim, texcoord );
- }
-}
-
-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:
- if (!p->state->unit[src - SRC_TEXTURE0].enabled)
- return GL_FALSE;
- load_texture(p, src - SRC_TEXTURE0);
- break;
-
- default:
- break;
- }
-
- return GL_TRUE;
-}
-
-static GLboolean load_texunit_sources( struct texenv_fragment_program *p, int unit )
-{
- struct state_key *key = p->state;
- int i, nr = key->unit[unit].NumArgsRGB;
- for (i = 0; i < nr; i++) {
- if (!load_texenv_source( p, key->unit[unit].OptRGB[i].Source, unit) ||
- !load_texenv_source( p, key->unit[unit].OptA[i].Source, unit ))
- return GL_FALSE;
- }
- return GL_TRUE;
-}
-
-static void create_new_program(struct state_key *key, GLcontext *ctx,
- struct fragment_program *program)
-{
- struct texenv_fragment_program p;
- GLuint unit;
- struct ureg cf, out;
-
- _mesa_memset(&p, 0, sizeof(p));
- p.ctx = ctx;
- p.state = key;
- p.program = program;
-
- p.program->Instructions = MALLOC(sizeof(struct fp_instruction) * 100);
- p.program->Base.NumInstructions = 0;
- p.program->Base.Target = GL_FRAGMENT_PROGRAM_ARB;
- p.program->NumTexIndirections = 1; /* correct? */
- p.program->NumTexInstructions = 0;
- p.program->NumAluInstructions = 0;
- p.program->Base.String = 0;
- p.program->Base.NumInstructions =
- p.program->Base.NumTemporaries =
- p.program->Base.NumParameters =
- p.program->Base.NumAttributes = p.program->Base.NumAddressRegs = 0;
- p.program->Parameters = _mesa_new_parameter_list();
-
- p.program->InputsRead = 0;
- p.program->OutputsWritten = 1 << FRAG_OUTPUT_COLR;
-
- for (unit = 0; unit < MAX_TEXTURE_UNITS; unit++)
- p.src_texture[unit] = undef;
-
- p.src_previous = undef;
- p.last_tex_stage = 0;
- release_temps(&p);
-
- if (key->enabled_units) {
- /* First pass - to support texture_env_crossbar, first identify
- * all referenced texture sources and emit texld instructions
- * for each:
- */
- for (unit = 0 ; unit < ctx->Const.MaxTextureUnits ; unit++)
- if (key->unit[unit].enabled) {
- if (load_texunit_sources( &p, unit ))
- p.last_tex_stage = unit;
- }
-
- /* Second pass - emit combine instructions to build final color:
- */
- for (unit = 0 ; unit < ctx->Const.MaxTextureUnits; unit++)
- if (key->enabled_units & (1<<unit)) {
- p.src_previous = emit_texenv( &p, unit );
- release_temps(&p); /* release all temps */
- }
- }
-
- cf = get_source( &p, SRC_PREVIOUS, 0 );
- out = make_ureg( PROGRAM_OUTPUT, FRAG_OUTPUT_COLR );
-
- if (key->separate_specular) {
- /* Emit specular add.
- */
- struct ureg s = register_input(&p, FRAG_ATTRIB_COL1);
- emit_arith( &p, FP_OPCODE_ADD, out, WRITEMASK_XYZ, 0, cf, s, 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, FP_OPCODE_MOV, out, WRITEMASK_XYZW, 0, cf, undef, undef );
- }
-
- /* Finish up:
- */
- emit_arith( &p, FP_OPCODE_END, undef, WRITEMASK_XYZW, 0, undef, undef, undef);
-
- if (key->fog_enabled) {
- /* Pull fog mode from GLcontext, the value in the state key is
- * a reduced value and not what is expected in FogOption
- */
- p.program->FogOption = ctx->Fog.Mode;
- } else
- p.program->FogOption = GL_NONE;
-
- if (p.program->NumTexIndirections > ctx->Const.MaxFragmentProgramTexIndirections)
- program_error(&p, "Exceeded max nr indirect texture lookups");
-
- if (p.program->NumTexInstructions > ctx->Const.MaxFragmentProgramTexInstructions)
- program_error(&p, "Exceeded max TEX instructions");
-
- if (p.program->NumAluInstructions > ctx->Const.MaxFragmentProgramAluInstructions)
- program_error(&p, "Exceeded max ALU instructions");
-
-
- /* Notify driver the fragment program has (actually) changed.
- */
- if (ctx->Driver.ProgramStringNotify || DISASSEM) {
- if (ctx->Driver.ProgramStringNotify)
- ctx->Driver.ProgramStringNotify( ctx, GL_FRAGMENT_PROGRAM_ARB,
- &p.program->Base );
-
- if (DISASSEM) {
- _mesa_debug_fp_inst(p.program->NumTexInstructions + p.program->NumAluInstructions,
- p.program->Instructions);
- _mesa_printf("\n");
- }
-
- }
-
-}
-
-static void *search_cache( struct texenvprog_cache *cache,
- GLuint hash,
- const void *key,
- GLuint keysize)
-{
- struct texenvprog_cache *c;
-
- for (c = cache; c; c = c->next) {
- if (c->hash == hash && memcmp(c->key, key, keysize) == 0)
- return c->data;
- }
-
- return NULL;
-}
-
-static void cache_item( struct texenvprog_cache **cache,
- GLuint hash,
- void *key,
- void *data )
-{
- struct texenvprog_cache *c = MALLOC(sizeof(*c));
- c->hash = hash;
- c->key = key;
- c->data = data;
- c->next = *cache;
- *cache = c;
-}
-
-static GLuint hash_key( struct state_key *key )
-{
- GLuint *ikey = (GLuint *)key;
- GLuint hash = 0, i;
-
- /* I'm sure this can be improved on, but speed is important:
- */
- for (i = 0; i < sizeof(*key)/sizeof(GLuint); i++)
- hash ^= ikey[i];
-
- return hash;
-}
-
-void _mesa_UpdateTexEnvProgram( GLcontext *ctx )
-{
- struct state_key *key;
- GLuint hash;
-
- if (ctx->FragmentProgram._Enabled)
- return;
-
- key = make_state_key(ctx);
- hash = hash_key(key);
-
- ctx->FragmentProgram._Current = ctx->_TexEnvProgram =
- (struct fragment_program *)
- search_cache(ctx->Texture.env_fp_cache, hash, key, sizeof(*key));
-
- if (!ctx->_TexEnvProgram) {
- if (0) _mesa_printf("Building new texenv proggy for key %x\n", hash);
-
- ctx->FragmentProgram._Current = ctx->_TexEnvProgram =
- (struct fragment_program *)
- ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);
-
- create_new_program(key, ctx, ctx->_TexEnvProgram);
-
- cache_item(&ctx->Texture.env_fp_cache, hash, key, ctx->_TexEnvProgram);
- } else {
- FREE(key);
- if (0) _mesa_printf("Found existing texenv program for key %x\n", hash);
- }
-
-}
-
-void _mesa_TexEnvProgramCacheDestroy( GLcontext *ctx )
-{
- struct texenvprog_cache *a, *tmp;
-
- for (a = ctx->Texture.env_fp_cache; a; a = tmp) {
- tmp = a->next;
- FREE(a->key);
- FREE(a->data);
- FREE(a);
- }
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-28 21:47:38 +0000