From 8a191c08ddda2e66fa26f148d6c21959bb08f923 Mon Sep 17 00:00:00 2001 From: marha Date: Sun, 20 Feb 2011 12:29:25 +0000 Subject: xserver xkeyboard-config libX11 pixman mesa git update 2011 --- mesalib/src/mesa/vbo/vbo_exec_array.c | 2589 +++++++++++++++++---------------- 1 file changed, 1307 insertions(+), 1282 deletions(-) (limited to 'mesalib/src/mesa/vbo') diff --git a/mesalib/src/mesa/vbo/vbo_exec_array.c b/mesalib/src/mesa/vbo/vbo_exec_array.c index 6749541b7..65a0642f1 100644 --- a/mesalib/src/mesa/vbo/vbo_exec_array.c +++ b/mesalib/src/mesa/vbo/vbo_exec_array.c @@ -1,1282 +1,1307 @@ -/************************************************************************** - * - * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. - * 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 "main/glheader.h" -#include "main/context.h" -#include "main/state.h" -#include "main/api_validate.h" -#include "main/varray.h" -#include "main/bufferobj.h" -#include "main/enums.h" -#include "main/macros.h" - -#include "vbo_context.h" - - -/** - * Compute min and max elements by scanning the index buffer for - * glDraw[Range]Elements() calls. - * If primitive restart is enabled, we need to ignore restart - * indexes when computing min/max. - */ -void -vbo_get_minmax_index(struct gl_context *ctx, - const struct _mesa_prim *prim, - const struct _mesa_index_buffer *ib, - GLuint *min_index, GLuint *max_index) -{ - const GLboolean restart = ctx->Array.PrimitiveRestart; - const GLuint restartIndex = ctx->Array.RestartIndex; - const GLuint count = prim->count; - const void *indices; - GLuint i; - - if (_mesa_is_bufferobj(ib->obj)) { - const GLvoid *map = - ctx->Driver.MapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, - GL_READ_ONLY, ib->obj); - indices = ADD_POINTERS(map, ib->ptr); - } else { - indices = ib->ptr; - } - - switch (ib->type) { - case GL_UNSIGNED_INT: { - const GLuint *ui_indices = (const GLuint *)indices; - GLuint max_ui = 0; - GLuint min_ui = ~0U; - if (restart) { - for (i = 0; i < count; i++) { - if (ui_indices[i] != restartIndex) { - if (ui_indices[i] > max_ui) max_ui = ui_indices[i]; - if (ui_indices[i] < min_ui) min_ui = ui_indices[i]; - } - } - } - else { - for (i = 0; i < count; i++) { - if (ui_indices[i] > max_ui) max_ui = ui_indices[i]; - if (ui_indices[i] < min_ui) min_ui = ui_indices[i]; - } - } - *min_index = min_ui; - *max_index = max_ui; - break; - } - case GL_UNSIGNED_SHORT: { - const GLushort *us_indices = (const GLushort *)indices; - GLuint max_us = 0; - GLuint min_us = ~0U; - if (restart) { - for (i = 0; i < count; i++) { - if (us_indices[i] != restartIndex) { - if (us_indices[i] > max_us) max_us = us_indices[i]; - if (us_indices[i] < min_us) min_us = us_indices[i]; - } - } - } - else { - for (i = 0; i < count; i++) { - if (us_indices[i] > max_us) max_us = us_indices[i]; - if (us_indices[i] < min_us) min_us = us_indices[i]; - } - } - *min_index = min_us; - *max_index = max_us; - break; - } - case GL_UNSIGNED_BYTE: { - const GLubyte *ub_indices = (const GLubyte *)indices; - GLuint max_ub = 0; - GLuint min_ub = ~0U; - if (restart) { - for (i = 0; i < count; i++) { - if (ub_indices[i] != restartIndex) { - if (ub_indices[i] > max_ub) max_ub = ub_indices[i]; - if (ub_indices[i] < min_ub) min_ub = ub_indices[i]; - } - } - } - else { - for (i = 0; i < count; i++) { - if (ub_indices[i] > max_ub) max_ub = ub_indices[i]; - if (ub_indices[i] < min_ub) min_ub = ub_indices[i]; - } - } - *min_index = min_ub; - *max_index = max_ub; - break; - } - default: - assert(0); - break; - } - - if (_mesa_is_bufferobj(ib->obj)) { - ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, ib->obj); - } -} - - -/** - * Check that element 'j' of the array has reasonable data. - * Map VBO if needed. - * For debugging purposes; not normally used. - */ -static void -check_array_data(struct gl_context *ctx, struct gl_client_array *array, - GLuint attrib, GLuint j) -{ - if (array->Enabled) { - const void *data = array->Ptr; - if (_mesa_is_bufferobj(array->BufferObj)) { - if (!array->BufferObj->Pointer) { - /* need to map now */ - array->BufferObj->Pointer = - ctx->Driver.MapBuffer(ctx, GL_ARRAY_BUFFER_ARB, - GL_READ_ONLY, array->BufferObj); - } - data = ADD_POINTERS(data, array->BufferObj->Pointer); - } - switch (array->Type) { - case GL_FLOAT: - { - GLfloat *f = (GLfloat *) ((GLubyte *) data + array->StrideB * j); - GLint k; - for (k = 0; k < array->Size; k++) { - if (IS_INF_OR_NAN(f[k]) || - f[k] >= 1.0e20 || f[k] <= -1.0e10) { - printf("Bad array data:\n"); - printf(" Element[%u].%u = %f\n", j, k, f[k]); - printf(" Array %u at %p\n", attrib, (void* ) array); - printf(" Type 0x%x, Size %d, Stride %d\n", - array->Type, array->Size, array->Stride); - printf(" Address/offset %p in Buffer Object %u\n", - array->Ptr, array->BufferObj->Name); - f[k] = 1.0; /* XXX replace the bad value! */ - } - /*assert(!IS_INF_OR_NAN(f[k]));*/ - } - } - break; - default: - ; - } - } -} - - -/** - * Unmap the buffer object referenced by given array, if mapped. - */ -static void -unmap_array_buffer(struct gl_context *ctx, struct gl_client_array *array) -{ - if (array->Enabled && - _mesa_is_bufferobj(array->BufferObj) && - _mesa_bufferobj_mapped(array->BufferObj)) { - ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER_ARB, array->BufferObj); - } -} - - -/** - * Examine the array's data for NaNs, etc. - * For debug purposes; not normally used. - */ -static void -check_draw_elements_data(struct gl_context *ctx, GLsizei count, GLenum elemType, - const void *elements, GLint basevertex) -{ - struct gl_array_object *arrayObj = ctx->Array.ArrayObj; - const void *elemMap; - GLint i, k; - - if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) { - elemMap = ctx->Driver.MapBuffer(ctx, - GL_ELEMENT_ARRAY_BUFFER_ARB, - GL_READ_ONLY, - ctx->Array.ElementArrayBufferObj); - elements = ADD_POINTERS(elements, elemMap); - } - - for (i = 0; i < count; i++) { - GLuint j; - - /* j = element[i] */ - switch (elemType) { - case GL_UNSIGNED_BYTE: - j = ((const GLubyte *) elements)[i]; - break; - case GL_UNSIGNED_SHORT: - j = ((const GLushort *) elements)[i]; - break; - case GL_UNSIGNED_INT: - j = ((const GLuint *) elements)[i]; - break; - default: - assert(0); - } - - /* check element j of each enabled array */ - check_array_data(ctx, &arrayObj->Vertex, VERT_ATTRIB_POS, j); - check_array_data(ctx, &arrayObj->Normal, VERT_ATTRIB_NORMAL, j); - check_array_data(ctx, &arrayObj->Color, VERT_ATTRIB_COLOR0, j); - check_array_data(ctx, &arrayObj->SecondaryColor, VERT_ATTRIB_COLOR1, j); - for (k = 0; k < Elements(arrayObj->TexCoord); k++) { - check_array_data(ctx, &arrayObj->TexCoord[k], VERT_ATTRIB_TEX0 + k, j); - } - for (k = 0; k < Elements(arrayObj->VertexAttrib); k++) { - check_array_data(ctx, &arrayObj->VertexAttrib[k], - VERT_ATTRIB_GENERIC0 + k, j); - } - } - - if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) { - ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, - ctx->Array.ElementArrayBufferObj); - } - - unmap_array_buffer(ctx, &arrayObj->Vertex); - unmap_array_buffer(ctx, &arrayObj->Normal); - unmap_array_buffer(ctx, &arrayObj->Color); - for (k = 0; k < Elements(arrayObj->TexCoord); k++) { - unmap_array_buffer(ctx, &arrayObj->TexCoord[k]); - } - for (k = 0; k < Elements(arrayObj->VertexAttrib); k++) { - unmap_array_buffer(ctx, &arrayObj->VertexAttrib[k]); - } -} - - -/** - * Check array data, looking for NaNs, etc. - */ -static void -check_draw_arrays_data(struct gl_context *ctx, GLint start, GLsizei count) -{ - /* TO DO */ -} - - -/** - * Print info/data for glDrawArrays(), for debugging. - */ -static void -print_draw_arrays(struct gl_context *ctx, - GLenum mode, GLint start, GLsizei count) -{ - struct vbo_context *vbo = vbo_context(ctx); - struct vbo_exec_context *exec = &vbo->exec; - int i; - - printf("vbo_exec_DrawArrays(mode 0x%x, start %d, count %d):\n", - mode, start, count); - - for (i = 0; i < 32; i++) { - GLuint bufName = exec->array.inputs[i]->BufferObj->Name; - GLint stride = exec->array.inputs[i]->Stride; - printf("attr %2d: size %d stride %d enabled %d " - "ptr %p Bufobj %u\n", - i, - exec->array.inputs[i]->Size, - stride, - /*exec->array.inputs[i]->Enabled,*/ - exec->array.legacy_array[i]->Enabled, - exec->array.inputs[i]->Ptr, - bufName); - - if (bufName) { - struct gl_buffer_object *buf = _mesa_lookup_bufferobj(ctx, bufName); - GLubyte *p = ctx->Driver.MapBuffer(ctx, GL_ARRAY_BUFFER_ARB, - GL_READ_ONLY_ARB, buf); - int offset = (int) (GLintptr) exec->array.inputs[i]->Ptr; - float *f = (float *) (p + offset); - int *k = (int *) f; - int i; - int n = (count * stride) / 4; - if (n > 32) - n = 32; - printf(" Data at offset %d:\n", offset); - for (i = 0; i < n; i++) { - printf(" float[%d] = 0x%08x %f\n", i, k[i], f[i]); - } - ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER_ARB, buf); - } - } -} - - -/** - * Bind the VBO executor to the current vertex array object prior - * to drawing. - * - * Just translate the arrayobj into a sane layout. - */ -static void -bind_array_obj(struct gl_context *ctx) -{ - struct vbo_context *vbo = vbo_context(ctx); - struct vbo_exec_context *exec = &vbo->exec; - struct gl_array_object *arrayObj = ctx->Array.ArrayObj; - GLuint i; - - /* TODO: Fix the ArrayObj struct to keep legacy arrays in an array - * rather than as individual named arrays. Then this function can - * go away. - */ - exec->array.legacy_array[VERT_ATTRIB_POS] = &arrayObj->Vertex; - exec->array.legacy_array[VERT_ATTRIB_WEIGHT] = &arrayObj->Weight; - exec->array.legacy_array[VERT_ATTRIB_NORMAL] = &arrayObj->Normal; - exec->array.legacy_array[VERT_ATTRIB_COLOR0] = &arrayObj->Color; - exec->array.legacy_array[VERT_ATTRIB_COLOR1] = &arrayObj->SecondaryColor; - exec->array.legacy_array[VERT_ATTRIB_FOG] = &arrayObj->FogCoord; - exec->array.legacy_array[VERT_ATTRIB_COLOR_INDEX] = &arrayObj->Index; - if (arrayObj->PointSize.Enabled) { - /* this aliases COLOR_INDEX */ - exec->array.legacy_array[VERT_ATTRIB_POINT_SIZE] = &arrayObj->PointSize; - } - exec->array.legacy_array[VERT_ATTRIB_EDGEFLAG] = &arrayObj->EdgeFlag; - - for (i = 0; i < Elements(arrayObj->TexCoord); i++) - exec->array.legacy_array[VERT_ATTRIB_TEX0 + i] = &arrayObj->TexCoord[i]; - - for (i = 0; i < Elements(arrayObj->VertexAttrib); i++) { - assert(i < Elements(exec->array.generic_array)); - exec->array.generic_array[i] = &arrayObj->VertexAttrib[i]; - } - - exec->array.array_obj = arrayObj->Name; -} - - -/** - * Set the vbo->exec->inputs[] pointers to point to the enabled - * vertex arrays. This depends on the current vertex program/shader - * being executed because of whether or not generic vertex arrays - * alias the conventional vertex arrays. - * For arrays that aren't enabled, we set the input[attrib] pointer - * to point at a zero-stride current value "array". - */ -static void -recalculate_input_bindings(struct gl_context *ctx) -{ - struct vbo_context *vbo = vbo_context(ctx); - struct vbo_exec_context *exec = &vbo->exec; - const struct gl_client_array **inputs = &exec->array.inputs[0]; - GLbitfield const_inputs = 0x0; - GLuint i; - - exec->array.program_mode = get_program_mode(ctx); - exec->array.enabled_flags = ctx->Array.ArrayObj->_Enabled; - - switch (exec->array.program_mode) { - case VP_NONE: - /* When no vertex program is active (or the vertex program is generated - * from fixed-function state). We put the material values into the - * generic slots. This is the only situation where material values - * are available as per-vertex attributes. - */ - for (i = 0; i <= VERT_ATTRIB_TEX7; i++) { - if (exec->array.legacy_array[i]->Enabled) - inputs[i] = exec->array.legacy_array[i]; - else { - inputs[i] = &vbo->legacy_currval[i]; - const_inputs |= 1 << i; - } - } - - for (i = 0; i < MAT_ATTRIB_MAX; i++) { - inputs[VERT_ATTRIB_GENERIC0 + i] = &vbo->mat_currval[i]; - const_inputs |= 1 << (VERT_ATTRIB_GENERIC0 + i); - } - - /* Could use just about anything, just to fill in the empty - * slots: - */ - for (i = MAT_ATTRIB_MAX; i < VERT_ATTRIB_MAX - VERT_ATTRIB_GENERIC0; i++) { - inputs[VERT_ATTRIB_GENERIC0 + i] = &vbo->generic_currval[i]; - const_inputs |= 1 << (VERT_ATTRIB_GENERIC0 + i); - } - break; - - case VP_NV: - /* NV_vertex_program - attribute arrays alias and override - * conventional, legacy arrays. No materials, and the generic - * slots are vacant. - */ - for (i = 0; i <= VERT_ATTRIB_TEX7; i++) { - if (exec->array.generic_array[i]->Enabled) - inputs[i] = exec->array.generic_array[i]; - else if (exec->array.legacy_array[i]->Enabled) - inputs[i] = exec->array.legacy_array[i]; - else { - inputs[i] = &vbo->legacy_currval[i]; - const_inputs |= 1 << i; - } - } - - /* Could use just about anything, just to fill in the empty - * slots: - */ - for (i = VERT_ATTRIB_GENERIC0; i < VERT_ATTRIB_MAX; i++) { - inputs[i] = &vbo->generic_currval[i - VERT_ATTRIB_GENERIC0]; - const_inputs |= 1 << i; - } - break; - - case VP_ARB: - /* GL_ARB_vertex_program or GLSL vertex shader - Only the generic[0] - * attribute array aliases and overrides the legacy position array. - * - * Otherwise, legacy attributes available in the legacy slots, - * generic attributes in the generic slots and materials are not - * available as per-vertex attributes. - */ - if (exec->array.generic_array[0]->Enabled) - inputs[0] = exec->array.generic_array[0]; - else if (exec->array.legacy_array[0]->Enabled) - inputs[0] = exec->array.legacy_array[0]; - else { - inputs[0] = &vbo->legacy_currval[0]; - const_inputs |= 1 << 0; - } - - for (i = 1; i <= VERT_ATTRIB_TEX7; i++) { - if (exec->array.legacy_array[i]->Enabled) - inputs[i] = exec->array.legacy_array[i]; - else { - inputs[i] = &vbo->legacy_currval[i]; - const_inputs |= 1 << i; - } - } - - for (i = 0; i < MAX_VERTEX_GENERIC_ATTRIBS; i++) { - if (exec->array.generic_array[i]->Enabled) - inputs[VERT_ATTRIB_GENERIC0 + i] = exec->array.generic_array[i]; - else { - inputs[VERT_ATTRIB_GENERIC0 + i] = &vbo->generic_currval[i]; - const_inputs |= 1 << (VERT_ATTRIB_GENERIC0 + i); - } - - } - break; - } - - _mesa_set_varying_vp_inputs( ctx, ~const_inputs ); -} - - -/** - * Examine the enabled vertex arrays to set the exec->array.inputs[] values. - * These will point to the arrays to actually use for drawing. Some will - * be user-provided arrays, other will be zero-stride const-valued arrays. - * Note that this might set the _NEW_ARRAY dirty flag so state validation - * must be done after this call. - */ -static void -bind_arrays(struct gl_context *ctx) -{ - if (!ctx->Array.RebindArrays) { - return; - } - - bind_array_obj(ctx); - recalculate_input_bindings(ctx); - ctx->Array.RebindArrays = GL_FALSE; -} - - -/** - * Helper function called by the other DrawArrays() functions below. - * This is where we handle primitive restart for drawing non-indexed - * arrays. If primitive restart is enabled, it typically means - * splitting one DrawArrays() into two. - */ -static void -vbo_draw_arrays(struct gl_context *ctx, GLenum mode, GLint start, - GLsizei count, GLuint numInstances) -{ - struct vbo_context *vbo = vbo_context(ctx); - struct vbo_exec_context *exec = &vbo->exec; - struct _mesa_prim prim[2]; - - bind_arrays(ctx); - - /* Again... because we may have changed the bitmask of per-vertex varying - * attributes. If we regenerate the fixed-function vertex program now - * we may be able to prune down the number of vertex attributes which we - * need in the shader. - */ - if (ctx->NewState) - _mesa_update_state(ctx); - - prim[0].begin = 1; - prim[0].end = 1; - prim[0].weak = 0; - prim[0].pad = 0; - prim[0].mode = mode; - prim[0].start = 0; /* filled in below */ - prim[0].count = 0; /* filled in below */ - prim[0].indexed = 0; - prim[0].basevertex = 0; - prim[0].num_instances = numInstances; - - /* Implement the primitive restart index */ - if (ctx->Array.PrimitiveRestart && ctx->Array.RestartIndex < count) { - GLuint primCount = 0; - - if (ctx->Array.RestartIndex == start) { - /* special case: RestartIndex at beginning */ - if (count > 1) { - prim[0].start = start + 1; - prim[0].count = count - 1; - primCount = 1; - } - } - else if (ctx->Array.RestartIndex == start + count - 1) { - /* special case: RestartIndex at end */ - if (count > 1) { - prim[0].start = start; - prim[0].count = count - 1; - primCount = 1; - } - } - else { - /* general case: RestartIndex in middle, split into two prims */ - prim[0].start = start; - prim[0].count = ctx->Array.RestartIndex - start; - - prim[1] = prim[0]; - prim[1].start = ctx->Array.RestartIndex + 1; - prim[1].count = count - prim[1].start; - - primCount = 2; - } - - if (primCount > 0) { - /* draw one or two prims */ - vbo->draw_prims(ctx, exec->array.inputs, prim, primCount, NULL, - GL_TRUE, start, start + count - 1); - } - } - else { - /* no prim restart */ - prim[0].start = start; - prim[0].count = count; - - vbo->draw_prims(ctx, exec->array.inputs, prim, 1, NULL, - GL_TRUE, start, start + count - 1); - } -} - - - -/** - * Called from glDrawArrays when in immediate mode (not display list mode). - */ -static void GLAPIENTRY -vbo_exec_DrawArrays(GLenum mode, GLint start, GLsizei count) -{ - GET_CURRENT_CONTEXT(ctx); - - if (MESA_VERBOSE & VERBOSE_DRAW) - _mesa_debug(ctx, "glDrawArrays(%s, %d, %d)\n", - _mesa_lookup_enum_by_nr(mode), start, count); - - if (!_mesa_validate_DrawArrays( ctx, mode, start, count )) - return; - - FLUSH_CURRENT( ctx, 0 ); - - if (!_mesa_valid_to_render(ctx, "glDrawArrays")) { - return; - } - - if (0) - check_draw_arrays_data(ctx, start, count); - - vbo_draw_arrays(ctx, mode, start, count, 1); - - if (0) - print_draw_arrays(ctx, mode, start, count); -} - - -/** - * Called from glDrawArraysInstanced when in immediate mode (not - * display list mode). - */ -static void GLAPIENTRY -vbo_exec_DrawArraysInstanced(GLenum mode, GLint start, GLsizei count, - GLsizei numInstances) -{ - GET_CURRENT_CONTEXT(ctx); - - if (MESA_VERBOSE & VERBOSE_DRAW) - _mesa_debug(ctx, "glDrawArraysInstanced(%s, %d, %d, %d)\n", - _mesa_lookup_enum_by_nr(mode), start, count, numInstances); - - if (!_mesa_validate_DrawArraysInstanced(ctx, mode, start, count, numInstances)) - return; - - FLUSH_CURRENT( ctx, 0 ); - - if (!_mesa_valid_to_render(ctx, "glDrawArraysInstanced")) { - return; - } - - if (0) - check_draw_arrays_data(ctx, start, count); - - vbo_draw_arrays(ctx, mode, start, count, numInstances); - - if (0) - print_draw_arrays(ctx, mode, start, count); -} - - -/** - * Map GL_ELEMENT_ARRAY_BUFFER and print contents. - * For debugging. - */ -static void -dump_element_buffer(struct gl_context *ctx, GLenum type) -{ - const GLvoid *map = ctx->Driver.MapBuffer(ctx, - GL_ELEMENT_ARRAY_BUFFER_ARB, - GL_READ_ONLY, - ctx->Array.ElementArrayBufferObj); - switch (type) { - case GL_UNSIGNED_BYTE: - { - const GLubyte *us = (const GLubyte *) map; - GLint i; - for (i = 0; i < ctx->Array.ElementArrayBufferObj->Size; i++) { - printf("%02x ", us[i]); - if (i % 32 == 31) - printf("\n"); - } - printf("\n"); - } - break; - case GL_UNSIGNED_SHORT: - { - const GLushort *us = (const GLushort *) map; - GLint i; - for (i = 0; i < ctx->Array.ElementArrayBufferObj->Size / 2; i++) { - printf("%04x ", us[i]); - if (i % 16 == 15) - printf("\n"); - } - printf("\n"); - } - break; - case GL_UNSIGNED_INT: - { - const GLuint *us = (const GLuint *) map; - GLint i; - for (i = 0; i < ctx->Array.ElementArrayBufferObj->Size / 4; i++) { - printf("%08x ", us[i]); - if (i % 8 == 7) - printf("\n"); - } - printf("\n"); - } - break; - default: - ; - } - - ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, - ctx->Array.ElementArrayBufferObj); -} - - -/** - * Inner support for both _mesa_DrawElements and _mesa_DrawRangeElements. - * Do the rendering for a glDrawElements or glDrawRangeElements call after - * we've validated buffer bounds, etc. - */ -static void -vbo_validated_drawrangeelements(struct gl_context *ctx, GLenum mode, - GLboolean index_bounds_valid, - GLuint start, GLuint end, - GLsizei count, GLenum type, - const GLvoid *indices, - GLint basevertex, GLint numInstances) -{ - struct vbo_context *vbo = vbo_context(ctx); - struct vbo_exec_context *exec = &vbo->exec; - struct _mesa_index_buffer ib; - struct _mesa_prim prim[1]; - - FLUSH_CURRENT( ctx, 0 ); - - if (!_mesa_valid_to_render(ctx, "glDraw[Range]Elements")) { - return; - } - - bind_arrays( ctx ); - - /* check for dirty state again */ - if (ctx->NewState) - _mesa_update_state( ctx ); - - ib.count = count; - ib.type = type; - ib.obj = ctx->Array.ElementArrayBufferObj; - ib.ptr = indices; - - prim[0].begin = 1; - prim[0].end = 1; - prim[0].weak = 0; - prim[0].pad = 0; - prim[0].mode = mode; - prim[0].start = 0; - prim[0].count = count; - prim[0].indexed = 1; - prim[0].basevertex = basevertex; - prim[0].num_instances = numInstances; - - /* Need to give special consideration to rendering a range of - * indices starting somewhere above zero. Typically the - * application is issuing multiple DrawRangeElements() to draw - * successive primitives layed out linearly in the vertex arrays. - * Unless the vertex arrays are all in a VBO (or locked as with - * CVA), the OpenGL semantics imply that we need to re-read or - * re-upload the vertex data on each draw call. - * - * In the case of hardware tnl, we want to avoid starting the - * upload at zero, as it will mean every draw call uploads an - * increasing amount of not-used vertex data. Worse - in the - * software tnl module, all those vertices might be transformed and - * lit but never rendered. - * - * If we just upload or transform the vertices in start..end, - * however, the indices will be incorrect. - * - * At this level, we don't know exactly what the requirements of - * the backend are going to be, though it will likely boil down to - * either: - * - * 1) Do nothing, everything is in a VBO and is processed once - * only. - * - * 2) Adjust the indices and vertex arrays so that start becomes - * zero. - * - * Rather than doing anything here, I'll provide a helper function - * for the latter case elsewhere. - */ - - vbo->draw_prims( ctx, exec->array.inputs, prim, 1, &ib, - index_bounds_valid, start, end ); -} - - -/** - * Called by glDrawRangeElementsBaseVertex() in immediate mode. - */ -static void GLAPIENTRY -vbo_exec_DrawRangeElementsBaseVertex(GLenum mode, - GLuint start, GLuint end, - GLsizei count, GLenum type, - const GLvoid *indices, - GLint basevertex) -{ - static GLuint warnCount = 0; - GET_CURRENT_CONTEXT(ctx); - - if (MESA_VERBOSE & VERBOSE_DRAW) - _mesa_debug(ctx, - "glDrawRangeElementsBaseVertex(%s, %u, %u, %d, %s, %p, %d)\n", - _mesa_lookup_enum_by_nr(mode), start, end, count, - _mesa_lookup_enum_by_nr(type), indices, basevertex); - - if (!_mesa_validate_DrawRangeElements( ctx, mode, start, end, count, - type, indices, basevertex )) - return; - - /* NOTE: It's important that 'end' is a reasonable value. - * in _tnl_draw_prims(), we use end to determine how many vertices - * to transform. If it's too large, we can unnecessarily split prims - * or we can read/write out of memory in several different places! - */ - - /* Catch/fix some potential user errors */ - if (type == GL_UNSIGNED_BYTE) { - start = MIN2(start, 0xff); - end = MIN2(end, 0xff); - } - else if (type == GL_UNSIGNED_SHORT) { - start = MIN2(start, 0xffff); - end = MIN2(end, 0xffff); - } - - if (end >= ctx->Array.ArrayObj->_MaxElement) { - /* the max element is out of bounds of one or more enabled arrays */ - warnCount++; - - if (warnCount < 10) { - _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, count %d, " - "type 0x%x, indices=%p)\n" - "\tend is out of bounds (max=%u) " - "Element Buffer %u (size %d)\n" - "\tThis should probably be fixed in the application.", - start, end, count, type, indices, - ctx->Array.ArrayObj->_MaxElement - 1, - ctx->Array.ElementArrayBufferObj->Name, - (int) ctx->Array.ElementArrayBufferObj->Size); - } - - if (0) - dump_element_buffer(ctx, type); - - if (0) - _mesa_print_arrays(ctx); - -#ifdef DEBUG - /* 'end' was out of bounds, but now let's check the actual array - * indexes to see if any of them are out of bounds. - */ - { - GLuint max = _mesa_max_buffer_index(ctx, count, type, indices, - ctx->Array.ElementArrayBufferObj); - if (max >= ctx->Array.ArrayObj->_MaxElement) { - if (warnCount < 10) { - _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, " - "count %d, type 0x%x, indices=%p)\n" - "\tindex=%u is out of bounds (max=%u) " - "Element Buffer %u (size %d)\n" - "\tSkipping the glDrawRangeElements() call", - start, end, count, type, indices, max, - ctx->Array.ArrayObj->_MaxElement - 1, - ctx->Array.ElementArrayBufferObj->Name, - (int) ctx->Array.ElementArrayBufferObj->Size); - } - } - /* XXX we could also find the min index and compare to 'start' - * to see if start is correct. But it's more likely to get the - * upper bound wrong. - */ - } -#endif - - /* Set 'end' to the max possible legal value */ - assert(ctx->Array.ArrayObj->_MaxElement >= 1); - end = ctx->Array.ArrayObj->_MaxElement - 1; - } - else if (0) { - printf("glDraw[Range]Elements{,BaseVertex}" - "(start %u, end %u, type 0x%x, count %d) ElemBuf %u, " - "base %d\n", - start, end, type, count, - ctx->Array.ElementArrayBufferObj->Name, - basevertex); - } - -#if 0 - check_draw_elements_data(ctx, count, type, indices); -#else - (void) check_draw_elements_data; -#endif - - vbo_validated_drawrangeelements(ctx, mode, GL_TRUE, start, end, - count, type, indices, basevertex, 1); -} - - -/** - * Called by glDrawRangeElements() in immediate mode. - */ -static void GLAPIENTRY -vbo_exec_DrawRangeElements(GLenum mode, GLuint start, GLuint end, - GLsizei count, GLenum type, const GLvoid *indices) -{ - GET_CURRENT_CONTEXT(ctx); - - if (MESA_VERBOSE & VERBOSE_DRAW) - _mesa_debug(ctx, - "glDrawRangeElements(%s, %u, %u, %d, %s, %p)\n", - _mesa_lookup_enum_by_nr(mode), start, end, count, - _mesa_lookup_enum_by_nr(type), indices); - - vbo_exec_DrawRangeElementsBaseVertex(mode, start, end, count, type, - indices, 0); -} - - -/** - * Called by glDrawElements() in immediate mode. - */ -static void GLAPIENTRY -vbo_exec_DrawElements(GLenum mode, GLsizei count, GLenum type, - const GLvoid *indices) -{ - GET_CURRENT_CONTEXT(ctx); - - if (MESA_VERBOSE & VERBOSE_DRAW) - _mesa_debug(ctx, "glDrawElements(%s, %u, %s, %p)\n", - _mesa_lookup_enum_by_nr(mode), count, - _mesa_lookup_enum_by_nr(type), indices); - - if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices, 0 )) - return; - - vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0, - count, type, indices, 0, 1); -} - - -/** - * Called by glDrawElementsBaseVertex() in immediate mode. - */ -static void GLAPIENTRY -vbo_exec_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, - const GLvoid *indices, GLint basevertex) -{ - GET_CURRENT_CONTEXT(ctx); - - if (MESA_VERBOSE & VERBOSE_DRAW) - _mesa_debug(ctx, "glDrawElementsBaseVertex(%s, %d, %s, %p, %d)\n", - _mesa_lookup_enum_by_nr(mode), count, - _mesa_lookup_enum_by_nr(type), indices, basevertex); - - if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices, - basevertex )) - return; - - vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0, - count, type, indices, basevertex, 1); -} - - -/** - * Called by glDrawElementsInstanced() in immediate mode. - */ -static void GLAPIENTRY -vbo_exec_DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type, - const GLvoid *indices, GLsizei numInstances) -{ - GET_CURRENT_CONTEXT(ctx); - - if (MESA_VERBOSE & VERBOSE_DRAW) - _mesa_debug(ctx, "glDrawElementsInstanced(%s, %d, %s, %p, %d)\n", - _mesa_lookup_enum_by_nr(mode), count, - _mesa_lookup_enum_by_nr(type), indices, numInstances); - - if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, indices, - numInstances)) - return; - - vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0, - count, type, indices, 0, numInstances); -} - - -/** - * Inner support for both _mesa_MultiDrawElements() and - * _mesa_MultiDrawRangeElements(). - * This does the actual rendering after we've checked array indexes, etc. - */ -static void -vbo_validated_multidrawelements(struct gl_context *ctx, GLenum mode, - const GLsizei *count, GLenum type, - const GLvoid **indices, GLsizei primcount, - const GLint *basevertex) -{ - struct vbo_context *vbo = vbo_context(ctx); - struct vbo_exec_context *exec = &vbo->exec; - struct _mesa_index_buffer ib; - struct _mesa_prim *prim; - unsigned int index_type_size = 0; - uintptr_t min_index_ptr, max_index_ptr; - GLboolean fallback = GL_FALSE; - int i; - - if (primcount == 0) - return; - - FLUSH_CURRENT( ctx, 0 ); - - if (!_mesa_valid_to_render(ctx, "glMultiDrawElements")) { - return; - } - - prim = calloc(1, primcount * sizeof(*prim)); - if (prim == NULL) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMultiDrawElements"); - return; - } - - /* Decide if we can do this all as one set of primitives sharing the - * same index buffer, or if we have to reset the index pointer per - * primitive. - */ - bind_arrays( ctx ); - - /* check for dirty state again */ - if (ctx->NewState) - _mesa_update_state( ctx ); - - switch (type) { - case GL_UNSIGNED_INT: - index_type_size = 4; - break; - case GL_UNSIGNED_SHORT: - index_type_size = 2; - break; - case GL_UNSIGNED_BYTE: - index_type_size = 1; - break; - default: - assert(0); - } - - min_index_ptr = (uintptr_t)indices[0]; - max_index_ptr = 0; - for (i = 0; i < primcount; i++) { - min_index_ptr = MIN2(min_index_ptr, (uintptr_t)indices[i]); - max_index_ptr = MAX2(max_index_ptr, (uintptr_t)indices[i] + - index_type_size * count[i]); - } - - /* Check if we can handle this thing as a bunch of index offsets from the - * same index pointer. If we can't, then we have to fall back to doing - * a draw_prims per primitive. - * Check that the difference between each prim's indexes is a multiple of - * the index/element size. - */ - if (index_type_size != 1) { - for (i = 0; i < primcount; i++) { - if ((((uintptr_t)indices[i] - min_index_ptr) % index_type_size) != 0) { - fallback = GL_TRUE; - break; - } - } - } - - /* If the index buffer isn't in a VBO, then treating the application's - * subranges of the index buffer as one large index buffer may lead to - * us reading unmapped memory. - */ - if (!_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) - fallback = GL_TRUE; - - if (!fallback) { - ib.count = (max_index_ptr - min_index_ptr) / index_type_size; - ib.type = type; - ib.obj = ctx->Array.ElementArrayBufferObj; - ib.ptr = (void *)min_index_ptr; - - for (i = 0; i < primcount; i++) { - prim[i].begin = (i == 0); - prim[i].end = (i == primcount - 1); - prim[i].weak = 0; - prim[i].pad = 0; - prim[i].mode = mode; - prim[i].start = ((uintptr_t)indices[i] - min_index_ptr) / index_type_size; - prim[i].count = count[i]; - prim[i].indexed = 1; - prim[i].num_instances = 1; - if (basevertex != NULL) - prim[i].basevertex = basevertex[i]; - else - prim[i].basevertex = 0; - } - - vbo->draw_prims(ctx, exec->array.inputs, prim, primcount, &ib, - GL_FALSE, ~0, ~0); - } else { - /* render one prim at a time */ - for (i = 0; i < primcount; i++) { - ib.count = count[i]; - ib.type = type; - ib.obj = ctx->Array.ElementArrayBufferObj; - ib.ptr = indices[i]; - - prim[0].begin = 1; - prim[0].end = 1; - prim[0].weak = 0; - prim[0].pad = 0; - prim[0].mode = mode; - prim[0].start = 0; - prim[0].count = count[i]; - prim[0].indexed = 1; - prim[0].num_instances = 1; - if (basevertex != NULL) - prim[0].basevertex = basevertex[i]; - else - prim[0].basevertex = 0; - - vbo->draw_prims(ctx, exec->array.inputs, prim, 1, &ib, - GL_FALSE, ~0, ~0); - } - } - - free(prim); -} - - -static void GLAPIENTRY -vbo_exec_MultiDrawElements(GLenum mode, - const GLsizei *count, GLenum type, - const GLvoid **indices, - GLsizei primcount) -{ - GET_CURRENT_CONTEXT(ctx); - GLint i; - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - for (i = 0; i < primcount; i++) { - if (!_mesa_validate_DrawElements(ctx, mode, count[i], type, indices[i], - 0)) - return; - } - - vbo_validated_multidrawelements(ctx, mode, count, type, indices, primcount, - NULL); -} - - -static void GLAPIENTRY -vbo_exec_MultiDrawElementsBaseVertex(GLenum mode, - const GLsizei *count, GLenum type, - const GLvoid **indices, - GLsizei primcount, - const GLsizei *basevertex) -{ - GET_CURRENT_CONTEXT(ctx); - GLint i; - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - for (i = 0; i < primcount; i++) { - if (!_mesa_validate_DrawElements(ctx, mode, count[i], type, indices[i], - basevertex[i])) - return; - } - - vbo_validated_multidrawelements(ctx, mode, count, type, indices, primcount, - basevertex); -} - - -/** - * Plug in the immediate-mode vertex array drawing commands into the - * givven vbo_exec_context object. - */ -void -vbo_exec_array_init( struct vbo_exec_context *exec ) -{ - exec->vtxfmt.DrawArrays = vbo_exec_DrawArrays; - exec->vtxfmt.DrawElements = vbo_exec_DrawElements; - exec->vtxfmt.DrawRangeElements = vbo_exec_DrawRangeElements; - exec->vtxfmt.MultiDrawElementsEXT = vbo_exec_MultiDrawElements; - exec->vtxfmt.DrawElementsBaseVertex = vbo_exec_DrawElementsBaseVertex; - exec->vtxfmt.DrawRangeElementsBaseVertex = vbo_exec_DrawRangeElementsBaseVertex; - exec->vtxfmt.MultiDrawElementsBaseVertex = vbo_exec_MultiDrawElementsBaseVertex; - exec->vtxfmt.DrawArraysInstanced = vbo_exec_DrawArraysInstanced; - exec->vtxfmt.DrawElementsInstanced = vbo_exec_DrawElementsInstanced; -} - - -void -vbo_exec_array_destroy( struct vbo_exec_context *exec ) -{ - /* nothing to do */ -} - - - -/** - * The following functions are only used for OpenGL ES 1/2 support. - * And some aren't even supported (yet) in ES 1/2. - */ - - -void GLAPIENTRY -_mesa_DrawArrays(GLenum mode, GLint first, GLsizei count) -{ - vbo_exec_DrawArrays(mode, first, count); -} - - -void GLAPIENTRY -_mesa_DrawElements(GLenum mode, GLsizei count, GLenum type, - const GLvoid *indices) -{ - vbo_exec_DrawElements(mode, count, type, indices); -} - - -void GLAPIENTRY -_mesa_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, - const GLvoid *indices, GLint basevertex) -{ - vbo_exec_DrawElementsBaseVertex(mode, count, type, indices, basevertex); -} - - -void GLAPIENTRY -_mesa_DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, - GLenum type, const GLvoid *indices) -{ - vbo_exec_DrawRangeElements(mode, start, end, count, type, indices); -} - - -void GLAPIENTRY -_mesa_DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end, - GLsizei count, GLenum type, - const GLvoid *indices, GLint basevertex) -{ - vbo_exec_DrawRangeElementsBaseVertex(mode, start, end, count, type, - indices, basevertex); -} - - -void GLAPIENTRY -_mesa_MultiDrawElementsEXT(GLenum mode, const GLsizei *count, GLenum type, - const GLvoid **indices, GLsizei primcount) -{ - vbo_exec_MultiDrawElements(mode, count, type, indices, primcount); -} - - -void GLAPIENTRY -_mesa_MultiDrawElementsBaseVertex(GLenum mode, - const GLsizei *count, GLenum type, - const GLvoid **indices, GLsizei primcount, - const GLint *basevertex) -{ - vbo_exec_MultiDrawElementsBaseVertex(mode, count, type, indices, - primcount, basevertex); -} +/************************************************************************** + * + * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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 "main/glheader.h" +#include "main/context.h" +#include "main/state.h" +#include "main/api_validate.h" +#include "main/varray.h" +#include "main/bufferobj.h" +#include "main/enums.h" +#include "main/macros.h" + +#include "vbo_context.h" + + +/** + * All vertex buffers should be in an unmapped state when we're about + * to draw. This debug function checks that. + */ +static void +check_buffers_are_unmapped(const struct gl_client_array **inputs) +{ +#ifdef DEBUG + GLuint i; + + for (i = 0; i < VERT_ATTRIB_MAX; i++) { + if (inputs[i]) { + struct gl_buffer_object *obj = inputs[i]->BufferObj; + assert(!_mesa_bufferobj_mapped(obj)); + } + } +#endif +} + + +/** + * Compute min and max elements by scanning the index buffer for + * glDraw[Range]Elements() calls. + * If primitive restart is enabled, we need to ignore restart + * indexes when computing min/max. + */ +void +vbo_get_minmax_index(struct gl_context *ctx, + const struct _mesa_prim *prim, + const struct _mesa_index_buffer *ib, + GLuint *min_index, GLuint *max_index) +{ + const GLboolean restart = ctx->Array.PrimitiveRestart; + const GLuint restartIndex = ctx->Array.RestartIndex; + const GLuint count = prim->count; + const void *indices; + GLuint i; + + if (_mesa_is_bufferobj(ib->obj)) { + const GLvoid *map = + ctx->Driver.MapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, + GL_READ_ONLY, ib->obj); + indices = ADD_POINTERS(map, ib->ptr); + } else { + indices = ib->ptr; + } + + switch (ib->type) { + case GL_UNSIGNED_INT: { + const GLuint *ui_indices = (const GLuint *)indices; + GLuint max_ui = 0; + GLuint min_ui = ~0U; + if (restart) { + for (i = 0; i < count; i++) { + if (ui_indices[i] != restartIndex) { + if (ui_indices[i] > max_ui) max_ui = ui_indices[i]; + if (ui_indices[i] < min_ui) min_ui = ui_indices[i]; + } + } + } + else { + for (i = 0; i < count; i++) { + if (ui_indices[i] > max_ui) max_ui = ui_indices[i]; + if (ui_indices[i] < min_ui) min_ui = ui_indices[i]; + } + } + *min_index = min_ui; + *max_index = max_ui; + break; + } + case GL_UNSIGNED_SHORT: { + const GLushort *us_indices = (const GLushort *)indices; + GLuint max_us = 0; + GLuint min_us = ~0U; + if (restart) { + for (i = 0; i < count; i++) { + if (us_indices[i] != restartIndex) { + if (us_indices[i] > max_us) max_us = us_indices[i]; + if (us_indices[i] < min_us) min_us = us_indices[i]; + } + } + } + else { + for (i = 0; i < count; i++) { + if (us_indices[i] > max_us) max_us = us_indices[i]; + if (us_indices[i] < min_us) min_us = us_indices[i]; + } + } + *min_index = min_us; + *max_index = max_us; + break; + } + case GL_UNSIGNED_BYTE: { + const GLubyte *ub_indices = (const GLubyte *)indices; + GLuint max_ub = 0; + GLuint min_ub = ~0U; + if (restart) { + for (i = 0; i < count; i++) { + if (ub_indices[i] != restartIndex) { + if (ub_indices[i] > max_ub) max_ub = ub_indices[i]; + if (ub_indices[i] < min_ub) min_ub = ub_indices[i]; + } + } + } + else { + for (i = 0; i < count; i++) { + if (ub_indices[i] > max_ub) max_ub = ub_indices[i]; + if (ub_indices[i] < min_ub) min_ub = ub_indices[i]; + } + } + *min_index = min_ub; + *max_index = max_ub; + break; + } + default: + assert(0); + break; + } + + if (_mesa_is_bufferobj(ib->obj)) { + ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, ib->obj); + } +} + + +/** + * Check that element 'j' of the array has reasonable data. + * Map VBO if needed. + * For debugging purposes; not normally used. + */ +static void +check_array_data(struct gl_context *ctx, struct gl_client_array *array, + GLuint attrib, GLuint j) +{ + if (array->Enabled) { + const void *data = array->Ptr; + if (_mesa_is_bufferobj(array->BufferObj)) { + if (!array->BufferObj->Pointer) { + /* need to map now */ + array->BufferObj->Pointer = + ctx->Driver.MapBuffer(ctx, GL_ARRAY_BUFFER_ARB, + GL_READ_ONLY, array->BufferObj); + } + data = ADD_POINTERS(data, array->BufferObj->Pointer); + } + switch (array->Type) { + case GL_FLOAT: + { + GLfloat *f = (GLfloat *) ((GLubyte *) data + array->StrideB * j); + GLint k; + for (k = 0; k < array->Size; k++) { + if (IS_INF_OR_NAN(f[k]) || + f[k] >= 1.0e20 || f[k] <= -1.0e10) { + printf("Bad array data:\n"); + printf(" Element[%u].%u = %f\n", j, k, f[k]); + printf(" Array %u at %p\n", attrib, (void* ) array); + printf(" Type 0x%x, Size %d, Stride %d\n", + array->Type, array->Size, array->Stride); + printf(" Address/offset %p in Buffer Object %u\n", + array->Ptr, array->BufferObj->Name); + f[k] = 1.0; /* XXX replace the bad value! */ + } + /*assert(!IS_INF_OR_NAN(f[k]));*/ + } + } + break; + default: + ; + } + } +} + + +/** + * Unmap the buffer object referenced by given array, if mapped. + */ +static void +unmap_array_buffer(struct gl_context *ctx, struct gl_client_array *array) +{ + if (array->Enabled && + _mesa_is_bufferobj(array->BufferObj) && + _mesa_bufferobj_mapped(array->BufferObj)) { + ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER_ARB, array->BufferObj); + } +} + + +/** + * Examine the array's data for NaNs, etc. + * For debug purposes; not normally used. + */ +static void +check_draw_elements_data(struct gl_context *ctx, GLsizei count, GLenum elemType, + const void *elements, GLint basevertex) +{ + struct gl_array_object *arrayObj = ctx->Array.ArrayObj; + const void *elemMap; + GLint i, k; + + if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) { + elemMap = ctx->Driver.MapBuffer(ctx, + GL_ELEMENT_ARRAY_BUFFER_ARB, + GL_READ_ONLY, + ctx->Array.ElementArrayBufferObj); + elements = ADD_POINTERS(elements, elemMap); + } + + for (i = 0; i < count; i++) { + GLuint j; + + /* j = element[i] */ + switch (elemType) { + case GL_UNSIGNED_BYTE: + j = ((const GLubyte *) elements)[i]; + break; + case GL_UNSIGNED_SHORT: + j = ((const GLushort *) elements)[i]; + break; + case GL_UNSIGNED_INT: + j = ((const GLuint *) elements)[i]; + break; + default: + assert(0); + } + + /* check element j of each enabled array */ + check_array_data(ctx, &arrayObj->Vertex, VERT_ATTRIB_POS, j); + check_array_data(ctx, &arrayObj->Normal, VERT_ATTRIB_NORMAL, j); + check_array_data(ctx, &arrayObj->Color, VERT_ATTRIB_COLOR0, j); + check_array_data(ctx, &arrayObj->SecondaryColor, VERT_ATTRIB_COLOR1, j); + for (k = 0; k < Elements(arrayObj->TexCoord); k++) { + check_array_data(ctx, &arrayObj->TexCoord[k], VERT_ATTRIB_TEX0 + k, j); + } + for (k = 0; k < Elements(arrayObj->VertexAttrib); k++) { + check_array_data(ctx, &arrayObj->VertexAttrib[k], + VERT_ATTRIB_GENERIC0 + k, j); + } + } + + if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) { + ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, + ctx->Array.ElementArrayBufferObj); + } + + unmap_array_buffer(ctx, &arrayObj->Vertex); + unmap_array_buffer(ctx, &arrayObj->Normal); + unmap_array_buffer(ctx, &arrayObj->Color); + for (k = 0; k < Elements(arrayObj->TexCoord); k++) { + unmap_array_buffer(ctx, &arrayObj->TexCoord[k]); + } + for (k = 0; k < Elements(arrayObj->VertexAttrib); k++) { + unmap_array_buffer(ctx, &arrayObj->VertexAttrib[k]); + } +} + + +/** + * Check array data, looking for NaNs, etc. + */ +static void +check_draw_arrays_data(struct gl_context *ctx, GLint start, GLsizei count) +{ + /* TO DO */ +} + + +/** + * Print info/data for glDrawArrays(), for debugging. + */ +static void +print_draw_arrays(struct gl_context *ctx, + GLenum mode, GLint start, GLsizei count) +{ + struct vbo_context *vbo = vbo_context(ctx); + struct vbo_exec_context *exec = &vbo->exec; + int i; + + printf("vbo_exec_DrawArrays(mode 0x%x, start %d, count %d):\n", + mode, start, count); + + for (i = 0; i < 32; i++) { + GLuint bufName = exec->array.inputs[i]->BufferObj->Name; + GLint stride = exec->array.inputs[i]->Stride; + printf("attr %2d: size %d stride %d enabled %d " + "ptr %p Bufobj %u\n", + i, + exec->array.inputs[i]->Size, + stride, + /*exec->array.inputs[i]->Enabled,*/ + exec->array.legacy_array[i]->Enabled, + exec->array.inputs[i]->Ptr, + bufName); + + if (bufName) { + struct gl_buffer_object *buf = _mesa_lookup_bufferobj(ctx, bufName); + GLubyte *p = ctx->Driver.MapBuffer(ctx, GL_ARRAY_BUFFER_ARB, + GL_READ_ONLY_ARB, buf); + int offset = (int) (GLintptr) exec->array.inputs[i]->Ptr; + float *f = (float *) (p + offset); + int *k = (int *) f; + int i; + int n = (count * stride) / 4; + if (n > 32) + n = 32; + printf(" Data at offset %d:\n", offset); + for (i = 0; i < n; i++) { + printf(" float[%d] = 0x%08x %f\n", i, k[i], f[i]); + } + ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER_ARB, buf); + } + } +} + + +/** + * Bind the VBO executor to the current vertex array object prior + * to drawing. + * + * Just translate the arrayobj into a sane layout. + */ +static void +bind_array_obj(struct gl_context *ctx) +{ + struct vbo_context *vbo = vbo_context(ctx); + struct vbo_exec_context *exec = &vbo->exec; + struct gl_array_object *arrayObj = ctx->Array.ArrayObj; + GLuint i; + + /* TODO: Fix the ArrayObj struct to keep legacy arrays in an array + * rather than as individual named arrays. Then this function can + * go away. + */ + exec->array.legacy_array[VERT_ATTRIB_POS] = &arrayObj->Vertex; + exec->array.legacy_array[VERT_ATTRIB_WEIGHT] = &arrayObj->Weight; + exec->array.legacy_array[VERT_ATTRIB_NORMAL] = &arrayObj->Normal; + exec->array.legacy_array[VERT_ATTRIB_COLOR0] = &arrayObj->Color; + exec->array.legacy_array[VERT_ATTRIB_COLOR1] = &arrayObj->SecondaryColor; + exec->array.legacy_array[VERT_ATTRIB_FOG] = &arrayObj->FogCoord; + exec->array.legacy_array[VERT_ATTRIB_COLOR_INDEX] = &arrayObj->Index; + if (arrayObj->PointSize.Enabled) { + /* this aliases COLOR_INDEX */ + exec->array.legacy_array[VERT_ATTRIB_POINT_SIZE] = &arrayObj->PointSize; + } + exec->array.legacy_array[VERT_ATTRIB_EDGEFLAG] = &arrayObj->EdgeFlag; + + for (i = 0; i < Elements(arrayObj->TexCoord); i++) + exec->array.legacy_array[VERT_ATTRIB_TEX0 + i] = &arrayObj->TexCoord[i]; + + for (i = 0; i < Elements(arrayObj->VertexAttrib); i++) { + assert(i < Elements(exec->array.generic_array)); + exec->array.generic_array[i] = &arrayObj->VertexAttrib[i]; + } + + exec->array.array_obj = arrayObj->Name; +} + + +/** + * Set the vbo->exec->inputs[] pointers to point to the enabled + * vertex arrays. This depends on the current vertex program/shader + * being executed because of whether or not generic vertex arrays + * alias the conventional vertex arrays. + * For arrays that aren't enabled, we set the input[attrib] pointer + * to point at a zero-stride current value "array". + */ +static void +recalculate_input_bindings(struct gl_context *ctx) +{ + struct vbo_context *vbo = vbo_context(ctx); + struct vbo_exec_context *exec = &vbo->exec; + const struct gl_client_array **inputs = &exec->array.inputs[0]; + GLbitfield const_inputs = 0x0; + GLuint i; + + exec->array.program_mode = get_program_mode(ctx); + exec->array.enabled_flags = ctx->Array.ArrayObj->_Enabled; + + switch (exec->array.program_mode) { + case VP_NONE: + /* When no vertex program is active (or the vertex program is generated + * from fixed-function state). We put the material values into the + * generic slots. This is the only situation where material values + * are available as per-vertex attributes. + */ + for (i = 0; i <= VERT_ATTRIB_TEX7; i++) { + if (exec->array.legacy_array[i]->Enabled) + inputs[i] = exec->array.legacy_array[i]; + else { + inputs[i] = &vbo->legacy_currval[i]; + const_inputs |= 1 << i; + } + } + + for (i = 0; i < MAT_ATTRIB_MAX; i++) { + inputs[VERT_ATTRIB_GENERIC0 + i] = &vbo->mat_currval[i]; + const_inputs |= 1 << (VERT_ATTRIB_GENERIC0 + i); + } + + /* Could use just about anything, just to fill in the empty + * slots: + */ + for (i = MAT_ATTRIB_MAX; i < VERT_ATTRIB_MAX - VERT_ATTRIB_GENERIC0; i++) { + inputs[VERT_ATTRIB_GENERIC0 + i] = &vbo->generic_currval[i]; + const_inputs |= 1 << (VERT_ATTRIB_GENERIC0 + i); + } + break; + + case VP_NV: + /* NV_vertex_program - attribute arrays alias and override + * conventional, legacy arrays. No materials, and the generic + * slots are vacant. + */ + for (i = 0; i <= VERT_ATTRIB_TEX7; i++) { + if (exec->array.generic_array[i]->Enabled) + inputs[i] = exec->array.generic_array[i]; + else if (exec->array.legacy_array[i]->Enabled) + inputs[i] = exec->array.legacy_array[i]; + else { + inputs[i] = &vbo->legacy_currval[i]; + const_inputs |= 1 << i; + } + } + + /* Could use just about anything, just to fill in the empty + * slots: + */ + for (i = VERT_ATTRIB_GENERIC0; i < VERT_ATTRIB_MAX; i++) { + inputs[i] = &vbo->generic_currval[i - VERT_ATTRIB_GENERIC0]; + const_inputs |= 1 << i; + } + break; + + case VP_ARB: + /* GL_ARB_vertex_program or GLSL vertex shader - Only the generic[0] + * attribute array aliases and overrides the legacy position array. + * + * Otherwise, legacy attributes available in the legacy slots, + * generic attributes in the generic slots and materials are not + * available as per-vertex attributes. + */ + if (exec->array.generic_array[0]->Enabled) + inputs[0] = exec->array.generic_array[0]; + else if (exec->array.legacy_array[0]->Enabled) + inputs[0] = exec->array.legacy_array[0]; + else { + inputs[0] = &vbo->legacy_currval[0]; + const_inputs |= 1 << 0; + } + + for (i = 1; i <= VERT_ATTRIB_TEX7; i++) { + if (exec->array.legacy_array[i]->Enabled) + inputs[i] = exec->array.legacy_array[i]; + else { + inputs[i] = &vbo->legacy_currval[i]; + const_inputs |= 1 << i; + } + } + + for (i = 0; i < MAX_VERTEX_GENERIC_ATTRIBS; i++) { + if (exec->array.generic_array[i]->Enabled) + inputs[VERT_ATTRIB_GENERIC0 + i] = exec->array.generic_array[i]; + else { + inputs[VERT_ATTRIB_GENERIC0 + i] = &vbo->generic_currval[i]; + const_inputs |= 1 << (VERT_ATTRIB_GENERIC0 + i); + } + + } + break; + } + + _mesa_set_varying_vp_inputs( ctx, ~const_inputs ); +} + + +/** + * Examine the enabled vertex arrays to set the exec->array.inputs[] values. + * These will point to the arrays to actually use for drawing. Some will + * be user-provided arrays, other will be zero-stride const-valued arrays. + * Note that this might set the _NEW_ARRAY dirty flag so state validation + * must be done after this call. + */ +static void +bind_arrays(struct gl_context *ctx) +{ + if (!ctx->Array.RebindArrays) { + return; + } + + bind_array_obj(ctx); + recalculate_input_bindings(ctx); + ctx->Array.RebindArrays = GL_FALSE; +} + + +/** + * Helper function called by the other DrawArrays() functions below. + * This is where we handle primitive restart for drawing non-indexed + * arrays. If primitive restart is enabled, it typically means + * splitting one DrawArrays() into two. + */ +static void +vbo_draw_arrays(struct gl_context *ctx, GLenum mode, GLint start, + GLsizei count, GLuint numInstances) +{ + struct vbo_context *vbo = vbo_context(ctx); + struct vbo_exec_context *exec = &vbo->exec; + struct _mesa_prim prim[2]; + + bind_arrays(ctx); + + /* Again... because we may have changed the bitmask of per-vertex varying + * attributes. If we regenerate the fixed-function vertex program now + * we may be able to prune down the number of vertex attributes which we + * need in the shader. + */ + if (ctx->NewState) + _mesa_update_state(ctx); + + prim[0].begin = 1; + prim[0].end = 1; + prim[0].weak = 0; + prim[0].pad = 0; + prim[0].mode = mode; + prim[0].start = 0; /* filled in below */ + prim[0].count = 0; /* filled in below */ + prim[0].indexed = 0; + prim[0].basevertex = 0; + prim[0].num_instances = numInstances; + + /* Implement the primitive restart index */ + if (ctx->Array.PrimitiveRestart && ctx->Array.RestartIndex < count) { + GLuint primCount = 0; + + if (ctx->Array.RestartIndex == start) { + /* special case: RestartIndex at beginning */ + if (count > 1) { + prim[0].start = start + 1; + prim[0].count = count - 1; + primCount = 1; + } + } + else if (ctx->Array.RestartIndex == start + count - 1) { + /* special case: RestartIndex at end */ + if (count > 1) { + prim[0].start = start; + prim[0].count = count - 1; + primCount = 1; + } + } + else { + /* general case: RestartIndex in middle, split into two prims */ + prim[0].start = start; + prim[0].count = ctx->Array.RestartIndex - start; + + prim[1] = prim[0]; + prim[1].start = ctx->Array.RestartIndex + 1; + prim[1].count = count - prim[1].start; + + primCount = 2; + } + + if (primCount > 0) { + /* draw one or two prims */ + check_buffers_are_unmapped(exec->array.inputs); + vbo->draw_prims(ctx, exec->array.inputs, prim, primCount, NULL, + GL_TRUE, start, start + count - 1); + } + } + else { + /* no prim restart */ + prim[0].start = start; + prim[0].count = count; + + check_buffers_are_unmapped(exec->array.inputs); + vbo->draw_prims(ctx, exec->array.inputs, prim, 1, NULL, + GL_TRUE, start, start + count - 1); + } +} + + + +/** + * Called from glDrawArrays when in immediate mode (not display list mode). + */ +static void GLAPIENTRY +vbo_exec_DrawArrays(GLenum mode, GLint start, GLsizei count) +{ + GET_CURRENT_CONTEXT(ctx); + + if (MESA_VERBOSE & VERBOSE_DRAW) + _mesa_debug(ctx, "glDrawArrays(%s, %d, %d)\n", + _mesa_lookup_enum_by_nr(mode), start, count); + + if (!_mesa_validate_DrawArrays( ctx, mode, start, count )) + return; + + FLUSH_CURRENT( ctx, 0 ); + + if (!_mesa_valid_to_render(ctx, "glDrawArrays")) { + return; + } + + if (0) + check_draw_arrays_data(ctx, start, count); + + vbo_draw_arrays(ctx, mode, start, count, 1); + + if (0) + print_draw_arrays(ctx, mode, start, count); +} + + +/** + * Called from glDrawArraysInstanced when in immediate mode (not + * display list mode). + */ +static void GLAPIENTRY +vbo_exec_DrawArraysInstanced(GLenum mode, GLint start, GLsizei count, + GLsizei numInstances) +{ + GET_CURRENT_CONTEXT(ctx); + + if (MESA_VERBOSE & VERBOSE_DRAW) + _mesa_debug(ctx, "glDrawArraysInstanced(%s, %d, %d, %d)\n", + _mesa_lookup_enum_by_nr(mode), start, count, numInstances); + + if (!_mesa_validate_DrawArraysInstanced(ctx, mode, start, count, numInstances)) + return; + + FLUSH_CURRENT( ctx, 0 ); + + if (!_mesa_valid_to_render(ctx, "glDrawArraysInstanced")) { + return; + } + + if (0) + check_draw_arrays_data(ctx, start, count); + + vbo_draw_arrays(ctx, mode, start, count, numInstances); + + if (0) + print_draw_arrays(ctx, mode, start, count); +} + + +/** + * Map GL_ELEMENT_ARRAY_BUFFER and print contents. + * For debugging. + */ +static void +dump_element_buffer(struct gl_context *ctx, GLenum type) +{ + const GLvoid *map = ctx->Driver.MapBuffer(ctx, + GL_ELEMENT_ARRAY_BUFFER_ARB, + GL_READ_ONLY, + ctx->Array.ElementArrayBufferObj); + switch (type) { + case GL_UNSIGNED_BYTE: + { + const GLubyte *us = (const GLubyte *) map; + GLint i; + for (i = 0; i < ctx->Array.ElementArrayBufferObj->Size; i++) { + printf("%02x ", us[i]); + if (i % 32 == 31) + printf("\n"); + } + printf("\n"); + } + break; + case GL_UNSIGNED_SHORT: + { + const GLushort *us = (const GLushort *) map; + GLint i; + for (i = 0; i < ctx->Array.ElementArrayBufferObj->Size / 2; i++) { + printf("%04x ", us[i]); + if (i % 16 == 15) + printf("\n"); + } + printf("\n"); + } + break; + case GL_UNSIGNED_INT: + { + const GLuint *us = (const GLuint *) map; + GLint i; + for (i = 0; i < ctx->Array.ElementArrayBufferObj->Size / 4; i++) { + printf("%08x ", us[i]); + if (i % 8 == 7) + printf("\n"); + } + printf("\n"); + } + break; + default: + ; + } + + ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, + ctx->Array.ElementArrayBufferObj); +} + + +/** + * Inner support for both _mesa_DrawElements and _mesa_DrawRangeElements. + * Do the rendering for a glDrawElements or glDrawRangeElements call after + * we've validated buffer bounds, etc. + */ +static void +vbo_validated_drawrangeelements(struct gl_context *ctx, GLenum mode, + GLboolean index_bounds_valid, + GLuint start, GLuint end, + GLsizei count, GLenum type, + const GLvoid *indices, + GLint basevertex, GLint numInstances) +{ + struct vbo_context *vbo = vbo_context(ctx); + struct vbo_exec_context *exec = &vbo->exec; + struct _mesa_index_buffer ib; + struct _mesa_prim prim[1]; + + FLUSH_CURRENT( ctx, 0 ); + + if (!_mesa_valid_to_render(ctx, "glDraw[Range]Elements")) { + return; + } + + bind_arrays( ctx ); + + /* check for dirty state again */ + if (ctx->NewState) + _mesa_update_state( ctx ); + + ib.count = count; + ib.type = type; + ib.obj = ctx->Array.ElementArrayBufferObj; + ib.ptr = indices; + + prim[0].begin = 1; + prim[0].end = 1; + prim[0].weak = 0; + prim[0].pad = 0; + prim[0].mode = mode; + prim[0].start = 0; + prim[0].count = count; + prim[0].indexed = 1; + prim[0].basevertex = basevertex; + prim[0].num_instances = numInstances; + + /* Need to give special consideration to rendering a range of + * indices starting somewhere above zero. Typically the + * application is issuing multiple DrawRangeElements() to draw + * successive primitives layed out linearly in the vertex arrays. + * Unless the vertex arrays are all in a VBO (or locked as with + * CVA), the OpenGL semantics imply that we need to re-read or + * re-upload the vertex data on each draw call. + * + * In the case of hardware tnl, we want to avoid starting the + * upload at zero, as it will mean every draw call uploads an + * increasing amount of not-used vertex data. Worse - in the + * software tnl module, all those vertices might be transformed and + * lit but never rendered. + * + * If we just upload or transform the vertices in start..end, + * however, the indices will be incorrect. + * + * At this level, we don't know exactly what the requirements of + * the backend are going to be, though it will likely boil down to + * either: + * + * 1) Do nothing, everything is in a VBO and is processed once + * only. + * + * 2) Adjust the indices and vertex arrays so that start becomes + * zero. + * + * Rather than doing anything here, I'll provide a helper function + * for the latter case elsewhere. + */ + + check_buffers_are_unmapped(exec->array.inputs); + vbo->draw_prims( ctx, exec->array.inputs, prim, 1, &ib, + index_bounds_valid, start, end ); +} + + +/** + * Called by glDrawRangeElementsBaseVertex() in immediate mode. + */ +static void GLAPIENTRY +vbo_exec_DrawRangeElementsBaseVertex(GLenum mode, + GLuint start, GLuint end, + GLsizei count, GLenum type, + const GLvoid *indices, + GLint basevertex) +{ + static GLuint warnCount = 0; + GET_CURRENT_CONTEXT(ctx); + + if (MESA_VERBOSE & VERBOSE_DRAW) + _mesa_debug(ctx, + "glDrawRangeElementsBaseVertex(%s, %u, %u, %d, %s, %p, %d)\n", + _mesa_lookup_enum_by_nr(mode), start, end, count, + _mesa_lookup_enum_by_nr(type), indices, basevertex); + + if (!_mesa_validate_DrawRangeElements( ctx, mode, start, end, count, + type, indices, basevertex )) + return; + + /* NOTE: It's important that 'end' is a reasonable value. + * in _tnl_draw_prims(), we use end to determine how many vertices + * to transform. If it's too large, we can unnecessarily split prims + * or we can read/write out of memory in several different places! + */ + + /* Catch/fix some potential user errors */ + if (type == GL_UNSIGNED_BYTE) { + start = MIN2(start, 0xff); + end = MIN2(end, 0xff); + } + else if (type == GL_UNSIGNED_SHORT) { + start = MIN2(start, 0xffff); + end = MIN2(end, 0xffff); + } + + if (end >= ctx->Array.ArrayObj->_MaxElement) { + /* the max element is out of bounds of one or more enabled arrays */ + warnCount++; + + if (warnCount < 10) { + _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, count %d, " + "type 0x%x, indices=%p)\n" + "\tend is out of bounds (max=%u) " + "Element Buffer %u (size %d)\n" + "\tThis should probably be fixed in the application.", + start, end, count, type, indices, + ctx->Array.ArrayObj->_MaxElement - 1, + ctx->Array.ElementArrayBufferObj->Name, + (int) ctx->Array.ElementArrayBufferObj->Size); + } + + if (0) + dump_element_buffer(ctx, type); + + if (0) + _mesa_print_arrays(ctx); + +#ifdef DEBUG + /* 'end' was out of bounds, but now let's check the actual array + * indexes to see if any of them are out of bounds. + */ + { + GLuint max = _mesa_max_buffer_index(ctx, count, type, indices, + ctx->Array.ElementArrayBufferObj); + if (max >= ctx->Array.ArrayObj->_MaxElement) { + if (warnCount < 10) { + _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, " + "count %d, type 0x%x, indices=%p)\n" + "\tindex=%u is out of bounds (max=%u) " + "Element Buffer %u (size %d)\n" + "\tSkipping the glDrawRangeElements() call", + start, end, count, type, indices, max, + ctx->Array.ArrayObj->_MaxElement - 1, + ctx->Array.ElementArrayBufferObj->Name, + (int) ctx->Array.ElementArrayBufferObj->Size); + } + } + /* XXX we could also find the min index and compare to 'start' + * to see if start is correct. But it's more likely to get the + * upper bound wrong. + */ + } +#endif + + /* Set 'end' to the max possible legal value */ + assert(ctx->Array.ArrayObj->_MaxElement >= 1); + end = ctx->Array.ArrayObj->_MaxElement - 1; + } + else if (0) { + printf("glDraw[Range]Elements{,BaseVertex}" + "(start %u, end %u, type 0x%x, count %d) ElemBuf %u, " + "base %d\n", + start, end, type, count, + ctx->Array.ElementArrayBufferObj->Name, + basevertex); + } + +#if 0 + check_draw_elements_data(ctx, count, type, indices); +#else + (void) check_draw_elements_data; +#endif + + vbo_validated_drawrangeelements(ctx, mode, GL_TRUE, start, end, + count, type, indices, basevertex, 1); +} + + +/** + * Called by glDrawRangeElements() in immediate mode. + */ +static void GLAPIENTRY +vbo_exec_DrawRangeElements(GLenum mode, GLuint start, GLuint end, + GLsizei count, GLenum type, const GLvoid *indices) +{ + GET_CURRENT_CONTEXT(ctx); + + if (MESA_VERBOSE & VERBOSE_DRAW) + _mesa_debug(ctx, + "glDrawRangeElements(%s, %u, %u, %d, %s, %p)\n", + _mesa_lookup_enum_by_nr(mode), start, end, count, + _mesa_lookup_enum_by_nr(type), indices); + + vbo_exec_DrawRangeElementsBaseVertex(mode, start, end, count, type, + indices, 0); +} + + +/** + * Called by glDrawElements() in immediate mode. + */ +static void GLAPIENTRY +vbo_exec_DrawElements(GLenum mode, GLsizei count, GLenum type, + const GLvoid *indices) +{ + GET_CURRENT_CONTEXT(ctx); + + if (MESA_VERBOSE & VERBOSE_DRAW) + _mesa_debug(ctx, "glDrawElements(%s, %u, %s, %p)\n", + _mesa_lookup_enum_by_nr(mode), count, + _mesa_lookup_enum_by_nr(type), indices); + + if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices, 0 )) + return; + + vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0, + count, type, indices, 0, 1); +} + + +/** + * Called by glDrawElementsBaseVertex() in immediate mode. + */ +static void GLAPIENTRY +vbo_exec_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, + const GLvoid *indices, GLint basevertex) +{ + GET_CURRENT_CONTEXT(ctx); + + if (MESA_VERBOSE & VERBOSE_DRAW) + _mesa_debug(ctx, "glDrawElementsBaseVertex(%s, %d, %s, %p, %d)\n", + _mesa_lookup_enum_by_nr(mode), count, + _mesa_lookup_enum_by_nr(type), indices, basevertex); + + if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices, + basevertex )) + return; + + vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0, + count, type, indices, basevertex, 1); +} + + +/** + * Called by glDrawElementsInstanced() in immediate mode. + */ +static void GLAPIENTRY +vbo_exec_DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type, + const GLvoid *indices, GLsizei numInstances) +{ + GET_CURRENT_CONTEXT(ctx); + + if (MESA_VERBOSE & VERBOSE_DRAW) + _mesa_debug(ctx, "glDrawElementsInstanced(%s, %d, %s, %p, %d)\n", + _mesa_lookup_enum_by_nr(mode), count, + _mesa_lookup_enum_by_nr(type), indices, numInstances); + + if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, indices, + numInstances)) + return; + + vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0, + count, type, indices, 0, numInstances); +} + + +/** + * Inner support for both _mesa_MultiDrawElements() and + * _mesa_MultiDrawRangeElements(). + * This does the actual rendering after we've checked array indexes, etc. + */ +static void +vbo_validated_multidrawelements(struct gl_context *ctx, GLenum mode, + const GLsizei *count, GLenum type, + const GLvoid **indices, GLsizei primcount, + const GLint *basevertex) +{ + struct vbo_context *vbo = vbo_context(ctx); + struct vbo_exec_context *exec = &vbo->exec; + struct _mesa_index_buffer ib; + struct _mesa_prim *prim; + unsigned int index_type_size = 0; + uintptr_t min_index_ptr, max_index_ptr; + GLboolean fallback = GL_FALSE; + int i; + + if (primcount == 0) + return; + + FLUSH_CURRENT( ctx, 0 ); + + if (!_mesa_valid_to_render(ctx, "glMultiDrawElements")) { + return; + } + + prim = calloc(1, primcount * sizeof(*prim)); + if (prim == NULL) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMultiDrawElements"); + return; + } + + /* Decide if we can do this all as one set of primitives sharing the + * same index buffer, or if we have to reset the index pointer per + * primitive. + */ + bind_arrays( ctx ); + + /* check for dirty state again */ + if (ctx->NewState) + _mesa_update_state( ctx ); + + switch (type) { + case GL_UNSIGNED_INT: + index_type_size = 4; + break; + case GL_UNSIGNED_SHORT: + index_type_size = 2; + break; + case GL_UNSIGNED_BYTE: + index_type_size = 1; + break; + default: + assert(0); + } + + min_index_ptr = (uintptr_t)indices[0]; + max_index_ptr = 0; + for (i = 0; i < primcount; i++) { + min_index_ptr = MIN2(min_index_ptr, (uintptr_t)indices[i]); + max_index_ptr = MAX2(max_index_ptr, (uintptr_t)indices[i] + + index_type_size * count[i]); + } + + /* Check if we can handle this thing as a bunch of index offsets from the + * same index pointer. If we can't, then we have to fall back to doing + * a draw_prims per primitive. + * Check that the difference between each prim's indexes is a multiple of + * the index/element size. + */ + if (index_type_size != 1) { + for (i = 0; i < primcount; i++) { + if ((((uintptr_t)indices[i] - min_index_ptr) % index_type_size) != 0) { + fallback = GL_TRUE; + break; + } + } + } + + /* If the index buffer isn't in a VBO, then treating the application's + * subranges of the index buffer as one large index buffer may lead to + * us reading unmapped memory. + */ + if (!_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) + fallback = GL_TRUE; + + if (!fallback) { + ib.count = (max_index_ptr - min_index_ptr) / index_type_size; + ib.type = type; + ib.obj = ctx->Array.ElementArrayBufferObj; + ib.ptr = (void *)min_index_ptr; + + for (i = 0; i < primcount; i++) { + prim[i].begin = (i == 0); + prim[i].end = (i == primcount - 1); + prim[i].weak = 0; + prim[i].pad = 0; + prim[i].mode = mode; + prim[i].start = ((uintptr_t)indices[i] - min_index_ptr) / index_type_size; + prim[i].count = count[i]; + prim[i].indexed = 1; + prim[i].num_instances = 1; + if (basevertex != NULL) + prim[i].basevertex = basevertex[i]; + else + prim[i].basevertex = 0; + } + + check_buffers_are_unmapped(exec->array.inputs); + vbo->draw_prims(ctx, exec->array.inputs, prim, primcount, &ib, + GL_FALSE, ~0, ~0); + } else { + /* render one prim at a time */ + for (i = 0; i < primcount; i++) { + ib.count = count[i]; + ib.type = type; + ib.obj = ctx->Array.ElementArrayBufferObj; + ib.ptr = indices[i]; + + prim[0].begin = 1; + prim[0].end = 1; + prim[0].weak = 0; + prim[0].pad = 0; + prim[0].mode = mode; + prim[0].start = 0; + prim[0].count = count[i]; + prim[0].indexed = 1; + prim[0].num_instances = 1; + if (basevertex != NULL) + prim[0].basevertex = basevertex[i]; + else + prim[0].basevertex = 0; + + check_buffers_are_unmapped(exec->array.inputs); + vbo->draw_prims(ctx, exec->array.inputs, prim, 1, &ib, + GL_FALSE, ~0, ~0); + } + } + + free(prim); +} + + +static void GLAPIENTRY +vbo_exec_MultiDrawElements(GLenum mode, + const GLsizei *count, GLenum type, + const GLvoid **indices, + GLsizei primcount) +{ + GET_CURRENT_CONTEXT(ctx); + GLint i; + + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + for (i = 0; i < primcount; i++) { + if (!_mesa_validate_DrawElements(ctx, mode, count[i], type, indices[i], + 0)) + return; + } + + vbo_validated_multidrawelements(ctx, mode, count, type, indices, primcount, + NULL); +} + + +static void GLAPIENTRY +vbo_exec_MultiDrawElementsBaseVertex(GLenum mode, + const GLsizei *count, GLenum type, + const GLvoid **indices, + GLsizei primcount, + const GLsizei *basevertex) +{ + GET_CURRENT_CONTEXT(ctx); + GLint i; + + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + for (i = 0; i < primcount; i++) { + if (!_mesa_validate_DrawElements(ctx, mode, count[i], type, indices[i], + basevertex[i])) + return; + } + + vbo_validated_multidrawelements(ctx, mode, count, type, indices, primcount, + basevertex); +} + + +/** + * Plug in the immediate-mode vertex array drawing commands into the + * givven vbo_exec_context object. + */ +void +vbo_exec_array_init( struct vbo_exec_context *exec ) +{ + exec->vtxfmt.DrawArrays = vbo_exec_DrawArrays; + exec->vtxfmt.DrawElements = vbo_exec_DrawElements; + exec->vtxfmt.DrawRangeElements = vbo_exec_DrawRangeElements; + exec->vtxfmt.MultiDrawElementsEXT = vbo_exec_MultiDrawElements; + exec->vtxfmt.DrawElementsBaseVertex = vbo_exec_DrawElementsBaseVertex; + exec->vtxfmt.DrawRangeElementsBaseVertex = vbo_exec_DrawRangeElementsBaseVertex; + exec->vtxfmt.MultiDrawElementsBaseVertex = vbo_exec_MultiDrawElementsBaseVertex; + exec->vtxfmt.DrawArraysInstanced = vbo_exec_DrawArraysInstanced; + exec->vtxfmt.DrawElementsInstanced = vbo_exec_DrawElementsInstanced; +} + + +void +vbo_exec_array_destroy( struct vbo_exec_context *exec ) +{ + /* nothing to do */ +} + + + +/** + * The following functions are only used for OpenGL ES 1/2 support. + * And some aren't even supported (yet) in ES 1/2. + */ + + +void GLAPIENTRY +_mesa_DrawArrays(GLenum mode, GLint first, GLsizei count) +{ + vbo_exec_DrawArrays(mode, first, count); +} + + +void GLAPIENTRY +_mesa_DrawElements(GLenum mode, GLsizei count, GLenum type, + const GLvoid *indices) +{ + vbo_exec_DrawElements(mode, count, type, indices); +} + + +void GLAPIENTRY +_mesa_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, + const GLvoid *indices, GLint basevertex) +{ + vbo_exec_DrawElementsBaseVertex(mode, count, type, indices, basevertex); +} + + +void GLAPIENTRY +_mesa_DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, + GLenum type, const GLvoid *indices) +{ + vbo_exec_DrawRangeElements(mode, start, end, count, type, indices); +} + + +void GLAPIENTRY +_mesa_DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end, + GLsizei count, GLenum type, + const GLvoid *indices, GLint basevertex) +{ + vbo_exec_DrawRangeElementsBaseVertex(mode, start, end, count, type, + indices, basevertex); +} + + +void GLAPIENTRY +_mesa_MultiDrawElementsEXT(GLenum mode, const GLsizei *count, GLenum type, + const GLvoid **indices, GLsizei primcount) +{ + vbo_exec_MultiDrawElements(mode, count, type, indices, primcount); +} + + +void GLAPIENTRY +_mesa_MultiDrawElementsBaseVertex(GLenum mode, + const GLsizei *count, GLenum type, + const GLvoid **indices, GLsizei primcount, + const GLint *basevertex) +{ + vbo_exec_MultiDrawElementsBaseVertex(mode, count, type, indices, + primcount, basevertex); +} -- cgit v1.2.3