| /************************************************************************** |
| * |
| * Copyright 2003 VMware, Inc. |
| * 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 VMWARE 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 <stdio.h> |
| #include "arrayobj.h" |
| #include "glheader.h" |
| #include "c99_alloca.h" |
| #include "context.h" |
| #include "state.h" |
| #include "draw.h" |
| #include "draw_validate.h" |
| #include "dispatch.h" |
| #include "varray.h" |
| #include "bufferobj.h" |
| #include "enums.h" |
| #include "macros.h" |
| #include "transformfeedback.h" |
| |
| typedef struct { |
| GLuint count; |
| GLuint primCount; |
| GLuint first; |
| GLuint baseInstance; |
| } DrawArraysIndirectCommand; |
| |
| typedef struct { |
| GLuint count; |
| GLuint primCount; |
| GLuint firstIndex; |
| GLint baseVertex; |
| GLuint baseInstance; |
| } DrawElementsIndirectCommand; |
| |
| |
| /** |
| * 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_vertex_array_object *vao, |
| GLuint attrib, GLuint j) |
| { |
| const struct gl_array_attributes *array = &vao->VertexAttrib[attrib]; |
| if (vao->Enabled & VERT_BIT(attrib)) { |
| const struct gl_vertex_buffer_binding *binding = |
| &vao->BufferBinding[array->BufferBindingIndex]; |
| struct gl_buffer_object *bo = binding->BufferObj; |
| const void *data = array->Ptr; |
| if (bo) { |
| data = ADD_POINTERS(_mesa_vertex_attrib_address(array, binding), |
| bo->Mappings[MAP_INTERNAL].Pointer); |
| } |
| switch (array->Format.Type) { |
| case GL_FLOAT: |
| { |
| GLfloat *f = (GLfloat *) ((GLubyte *) data + binding->Stride * j); |
| GLint k; |
| for (k = 0; k < array->Format.Size; k++) { |
| if (util_is_inf_or_nan(f[k]) || f[k] >= 1.0e20F || f[k] <= -1.0e10F) { |
| 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->Format.Type, array->Format.Size, |
| binding->Stride); |
| printf(" Address/offset %p in Buffer Object %u\n", |
| array->Ptr, bo ? bo->Name : 0); |
| f[k] = 1.0F; /* XXX replace the bad value! */ |
| } |
| /*assert(!util_is_inf_or_nan(f[k])); */ |
| } |
| } |
| break; |
| default: |
| ; |
| } |
| } |
| } |
| |
| |
| static inline void |
| get_index_size(GLenum type, struct _mesa_index_buffer *ib) |
| { |
| /* The type is already validated, so use a fast conversion. |
| * |
| * GL_UNSIGNED_BYTE - GL_UNSIGNED_BYTE = 0 |
| * GL_UNSIGNED_SHORT - GL_UNSIGNED_BYTE = 2 |
| * GL_UNSIGNED_INT - GL_UNSIGNED_BYTE = 4 |
| * |
| * Divide by 2 to get 0,1,2. |
| */ |
| ib->index_size_shift = (type - GL_UNSIGNED_BYTE) >> 1; |
| } |
| |
| /** |
| * 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_vertex_array_object *vao = ctx->Array.VAO; |
| GLint i; |
| GLuint k; |
| |
| _mesa_vao_map(ctx, vao, GL_MAP_READ_BIT); |
| |
| if (vao->IndexBufferObj) |
| elements = |
| ADD_POINTERS(vao->IndexBufferObj->Mappings[MAP_INTERNAL].Pointer, elements); |
| |
| 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: |
| unreachable("Unexpected index buffer type"); |
| } |
| |
| /* check element j of each enabled array */ |
| for (k = 0; k < VERT_ATTRIB_MAX; k++) { |
| check_array_data(ctx, vao, k, j); |
| } |
| } |
| |
| _mesa_vao_unmap(ctx, vao); |
| } |
| |
| |
| /** |
| * Check array data, looking for NaNs, etc. |
| */ |
| static void |
| check_draw_arrays_data(struct gl_context *ctx, GLint start, GLsizei count) |
| { |
| /* TO DO */ |
| } |
| |
| |
| /** |
| * Check if we should skip the draw call even after validation was successful. |
| */ |
| static bool |
| skip_validated_draw(struct gl_context *ctx) |
| { |
| switch (ctx->API) { |
| case API_OPENGLES2: |
| /* For ES2, we can draw if we have a vertex program/shader). */ |
| return ctx->VertexProgram._Current == NULL; |
| |
| case API_OPENGLES: |
| /* For OpenGL ES, only draw if we have vertex positions |
| */ |
| if (!(ctx->Array.VAO->Enabled & VERT_BIT_POS)) |
| return true; |
| break; |
| |
| case API_OPENGL_CORE: |
| /* Section 7.3 (Program Objects) of the OpenGL 4.5 Core Profile spec |
| * says: |
| * |
| * "If there is no active program for the vertex or fragment shader |
| * stages, the results of vertex and/or fragment processing will be |
| * undefined. However, this is not an error." |
| * |
| * The fragment shader is not tested here because other state (e.g., |
| * GL_RASTERIZER_DISCARD) affects whether or not we actually care. |
| */ |
| return ctx->VertexProgram._Current == NULL; |
| |
| case API_OPENGL_COMPAT: |
| if (ctx->VertexProgram._Current != NULL) { |
| /* Draw regardless of whether or not we have any vertex arrays. |
| * (Ex: could draw a point using a constant vertex pos) |
| */ |
| return false; |
| } else { |
| /* Draw if we have vertex positions (GL_VERTEX_ARRAY or generic |
| * array [0]). |
| */ |
| return !(ctx->Array.VAO->Enabled & (VERT_BIT_POS|VERT_BIT_GENERIC0)); |
| } |
| break; |
| |
| default: |
| unreachable("Invalid API value in check_valid_to_render()"); |
| } |
| |
| return false; |
| } |
| |
| |
| /** |
| * Print info/data for glDrawArrays(), for debugging. |
| */ |
| static void |
| print_draw_arrays(struct gl_context *ctx, |
| GLenum mode, GLint start, GLsizei count) |
| { |
| struct gl_vertex_array_object *vao = ctx->Array.VAO; |
| |
| printf("_mesa_DrawArrays(mode 0x%x, start %d, count %d):\n", |
| mode, start, count); |
| |
| _mesa_vao_map_arrays(ctx, vao, GL_MAP_READ_BIT); |
| |
| GLbitfield mask = vao->Enabled; |
| while (mask) { |
| const gl_vert_attrib i = u_bit_scan(&mask); |
| const struct gl_array_attributes *array = &vao->VertexAttrib[i]; |
| |
| const struct gl_vertex_buffer_binding *binding = |
| &vao->BufferBinding[array->BufferBindingIndex]; |
| struct gl_buffer_object *bufObj = binding->BufferObj; |
| |
| printf("attr %s: size %d stride %d " |
| "ptr %p Bufobj %u\n", |
| gl_vert_attrib_name((gl_vert_attrib) i), |
| array->Format.Size, binding->Stride, |
| array->Ptr, bufObj ? bufObj->Name : 0); |
| |
| if (bufObj) { |
| GLubyte *p = bufObj->Mappings[MAP_INTERNAL].Pointer; |
| int offset = (int) (GLintptr) |
| _mesa_vertex_attrib_address(array, binding); |
| |
| unsigned multiplier; |
| switch (array->Format.Type) { |
| case GL_DOUBLE: |
| case GL_INT64_ARB: |
| case GL_UNSIGNED_INT64_ARB: |
| multiplier = 2; |
| break; |
| default: |
| multiplier = 1; |
| } |
| |
| float *f = (float *) (p + offset); |
| int *k = (int *) f; |
| int i = 0; |
| int n = (count - 1) * (binding->Stride / (4 * multiplier)) |
| + array->Format.Size; |
| if (n > 32) |
| n = 32; |
| printf(" Data at offset %d:\n", offset); |
| do { |
| if (multiplier == 2) |
| printf(" double[%d] = 0x%016llx %lf\n", i, |
| ((unsigned long long *) k)[i], ((double *) f)[i]); |
| else |
| printf(" float[%d] = 0x%08x %f\n", i, k[i], f[i]); |
| i++; |
| } while (i < n); |
| } |
| } |
| |
| _mesa_vao_unmap_arrays(ctx, vao); |
| } |
| |
| |
| /** |
| * Return a filter mask for the net enabled vao arrays. |
| * This is to mask out arrays that would otherwise supersed required current |
| * values for the fixed function shaders for example. |
| */ |
| static GLbitfield |
| enabled_filter(const struct gl_context *ctx) |
| { |
| switch (ctx->VertexProgram._VPMode) { |
| case VP_MODE_FF: |
| /* 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. Since the vao has no material arrays, mute these |
| * slots from the enabled arrays so that the current material values |
| * are pulled instead of the vao arrays. |
| */ |
| return VERT_BIT_FF_ALL; |
| |
| case VP_MODE_SHADER: |
| /* There are no shaders in OpenGL ES 1.x, so this code path should be |
| * impossible to reach. The meta code is careful to not use shaders in |
| * ES1. |
| */ |
| assert(ctx->API != API_OPENGLES); |
| |
| /* Other parts of the code assume that inputs[VERT_ATTRIB_POS] through |
| * inputs[VERT_ATTRIB_FF_MAX] will be non-NULL. However, in OpenGL |
| * ES 2.0+ or OpenGL core profile, none of these arrays should ever |
| * be enabled. |
| */ |
| if (ctx->API != API_OPENGL_COMPAT) |
| return VERT_BIT_GENERIC_ALL; |
| |
| return VERT_BIT_ALL; |
| |
| default: |
| assert(0); |
| return 0; |
| } |
| } |
| |
| |
| /** |
| * 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 |
| _mesa_draw_arrays(struct gl_context *ctx, GLenum mode, GLint start, |
| GLsizei count, GLuint numInstances, GLuint baseInstance, |
| GLuint drawID) |
| { |
| if (skip_validated_draw(ctx)) |
| return; |
| |
| /* OpenGL 4.5 says that primitive restart is ignored with non-indexed |
| * draws. |
| */ |
| struct _mesa_prim prim = { |
| .begin = 1, |
| .end = 1, |
| .mode = mode, |
| .draw_id = drawID, |
| .start = start, |
| .count = count, |
| }; |
| |
| ctx->Driver.Draw(ctx, &prim, 1, NULL, |
| GL_TRUE, start, start + count - 1, |
| numInstances, baseInstance, NULL, 0); |
| |
| if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) { |
| _mesa_flush(ctx); |
| } |
| } |
| |
| |
| /** |
| * Execute a glRectf() function. |
| */ |
| static void GLAPIENTRY |
| _mesa_exec_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| CALL_Begin(ctx->CurrentServerDispatch, (GL_QUADS)); |
| /* Begin can change CurrentServerDispatch. */ |
| struct _glapi_table *dispatch = ctx->CurrentServerDispatch; |
| CALL_Vertex2f(dispatch, (x1, y1)); |
| CALL_Vertex2f(dispatch, (x2, y1)); |
| CALL_Vertex2f(dispatch, (x2, y2)); |
| CALL_Vertex2f(dispatch, (x1, y2)); |
| CALL_End(dispatch, ()); |
| } |
| |
| |
| static void GLAPIENTRY |
| _mesa_exec_Rectd(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2) |
| { |
| _mesa_exec_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2); |
| } |
| |
| static void GLAPIENTRY |
| _mesa_exec_Rectdv(const GLdouble *v1, const GLdouble *v2) |
| { |
| _mesa_exec_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]); |
| } |
| |
| static void GLAPIENTRY |
| _mesa_exec_Rectfv(const GLfloat *v1, const GLfloat *v2) |
| { |
| _mesa_exec_Rectf(v1[0], v1[1], v2[0], v2[1]); |
| } |
| |
| static void GLAPIENTRY |
| _mesa_exec_Recti(GLint x1, GLint y1, GLint x2, GLint y2) |
| { |
| _mesa_exec_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2); |
| } |
| |
| static void GLAPIENTRY |
| _mesa_exec_Rectiv(const GLint *v1, const GLint *v2) |
| { |
| _mesa_exec_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]); |
| } |
| |
| static void GLAPIENTRY |
| _mesa_exec_Rects(GLshort x1, GLshort y1, GLshort x2, GLshort y2) |
| { |
| _mesa_exec_Rectf((GLfloat) x1, (GLfloat) y1, (GLfloat) x2, (GLfloat) y2); |
| } |
| |
| static void GLAPIENTRY |
| _mesa_exec_Rectsv(const GLshort *v1, const GLshort *v2) |
| { |
| _mesa_exec_Rectf((GLfloat) v1[0], (GLfloat) v1[1], (GLfloat) v2[0], (GLfloat) v2[1]); |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_EvalMesh1(GLenum mode, GLint i1, GLint i2) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLint i; |
| GLfloat u, du; |
| GLenum prim; |
| |
| switch (mode) { |
| case GL_POINT: |
| prim = GL_POINTS; |
| break; |
| case GL_LINE: |
| prim = GL_LINE_STRIP; |
| break; |
| default: |
| _mesa_error(ctx, GL_INVALID_ENUM, "glEvalMesh1(mode)"); |
| return; |
| } |
| |
| /* No effect if vertex maps disabled. |
| */ |
| if (!ctx->Eval.Map1Vertex4 && !ctx->Eval.Map1Vertex3) |
| return; |
| |
| du = ctx->Eval.MapGrid1du; |
| u = ctx->Eval.MapGrid1u1 + i1 * du; |
| |
| |
| CALL_Begin(ctx->CurrentServerDispatch, (prim)); |
| /* Begin can change CurrentServerDispatch. */ |
| struct _glapi_table *dispatch = ctx->CurrentServerDispatch; |
| for (i = i1; i <= i2; i++, u += du) { |
| CALL_EvalCoord1f(dispatch, (u)); |
| } |
| CALL_End(dispatch, ()); |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_EvalMesh2(GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLfloat u, du, v, dv, v1, u1; |
| GLint i, j; |
| |
| switch (mode) { |
| case GL_POINT: |
| case GL_LINE: |
| case GL_FILL: |
| break; |
| default: |
| _mesa_error(ctx, GL_INVALID_ENUM, "glEvalMesh2(mode)"); |
| return; |
| } |
| |
| /* No effect if vertex maps disabled. |
| */ |
| if (!ctx->Eval.Map2Vertex4 && !ctx->Eval.Map2Vertex3) |
| return; |
| |
| du = ctx->Eval.MapGrid2du; |
| dv = ctx->Eval.MapGrid2dv; |
| v1 = ctx->Eval.MapGrid2v1 + j1 * dv; |
| u1 = ctx->Eval.MapGrid2u1 + i1 * du; |
| |
| struct _glapi_table *dispatch; |
| |
| switch (mode) { |
| case GL_POINT: |
| CALL_Begin(ctx->CurrentServerDispatch, (GL_POINTS)); |
| /* Begin can change CurrentServerDispatch. */ |
| dispatch = ctx->CurrentServerDispatch; |
| for (v = v1, j = j1; j <= j2; j++, v += dv) { |
| for (u = u1, i = i1; i <= i2; i++, u += du) { |
| CALL_EvalCoord2f(dispatch, (u, v)); |
| } |
| } |
| CALL_End(dispatch, ()); |
| break; |
| case GL_LINE: |
| for (v = v1, j = j1; j <= j2; j++, v += dv) { |
| CALL_Begin(ctx->CurrentServerDispatch, (GL_LINE_STRIP)); |
| /* Begin can change CurrentServerDispatch. */ |
| dispatch = ctx->CurrentServerDispatch; |
| for (u = u1, i = i1; i <= i2; i++, u += du) { |
| CALL_EvalCoord2f(dispatch, (u, v)); |
| } |
| CALL_End(dispatch, ()); |
| } |
| for (u = u1, i = i1; i <= i2; i++, u += du) { |
| CALL_Begin(ctx->CurrentServerDispatch, (GL_LINE_STRIP)); |
| /* Begin can change CurrentServerDispatch. */ |
| dispatch = ctx->CurrentServerDispatch; |
| for (v = v1, j = j1; j <= j2; j++, v += dv) { |
| CALL_EvalCoord2f(dispatch, (u, v)); |
| } |
| CALL_End(dispatch, ()); |
| } |
| break; |
| case GL_FILL: |
| for (v = v1, j = j1; j < j2; j++, v += dv) { |
| CALL_Begin(ctx->CurrentServerDispatch, (GL_TRIANGLE_STRIP)); |
| /* Begin can change CurrentServerDispatch. */ |
| dispatch = ctx->CurrentServerDispatch; |
| for (u = u1, i = i1; i <= i2; i++, u += du) { |
| CALL_EvalCoord2f(dispatch, (u, v)); |
| CALL_EvalCoord2f(dispatch, (u, v + dv)); |
| } |
| CALL_End(dispatch, ()); |
| } |
| break; |
| } |
| } |
| |
| |
| /** |
| * Called from glDrawArrays when in immediate mode (not display list mode). |
| */ |
| void GLAPIENTRY |
| _mesa_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_enum_to_string(mode), start, count); |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_DrawArrays(ctx, mode, count)) |
| return; |
| } |
| |
| if (0) |
| check_draw_arrays_data(ctx, start, count); |
| |
| _mesa_draw_arrays(ctx, mode, start, count, 1, 0, 0); |
| |
| if (0) |
| print_draw_arrays(ctx, mode, start, count); |
| } |
| |
| |
| /** |
| * Called from glDrawArraysInstanced when in immediate mode (not |
| * display list mode). |
| */ |
| void GLAPIENTRY |
| _mesa_DrawArraysInstancedARB(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_enum_to_string(mode), start, count, numInstances); |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_DrawArraysInstanced(ctx, mode, start, count, |
| numInstances)) |
| return; |
| } |
| |
| if (0) |
| check_draw_arrays_data(ctx, start, count); |
| |
| _mesa_draw_arrays(ctx, mode, start, count, numInstances, 0, 0); |
| |
| if (0) |
| print_draw_arrays(ctx, mode, start, count); |
| } |
| |
| |
| /** |
| * Called from glDrawArraysInstancedBaseInstance when in immediate mode. |
| */ |
| void GLAPIENTRY |
| _mesa_DrawArraysInstancedBaseInstance(GLenum mode, GLint first, |
| GLsizei count, GLsizei numInstances, |
| GLuint baseInstance) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, |
| "glDrawArraysInstancedBaseInstance(%s, %d, %d, %d, %d)\n", |
| _mesa_enum_to_string(mode), first, count, |
| numInstances, baseInstance); |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_DrawArraysInstanced(ctx, mode, first, count, |
| numInstances)) |
| return; |
| } |
| |
| if (0) |
| check_draw_arrays_data(ctx, first, count); |
| |
| _mesa_draw_arrays(ctx, mode, first, count, numInstances, baseInstance, 0); |
| |
| if (0) |
| print_draw_arrays(ctx, mode, first, count); |
| } |
| |
| |
| #define MAX_ALLOCA_PRIMS (50000 / sizeof(*prim)) |
| |
| /* Use calloc for large allocations and alloca for small allocations. */ |
| /* We have to use a macro because alloca is local within the function. */ |
| #define ALLOC_PRIMS(prim, primcount, func) do { \ |
| if (unlikely(primcount > MAX_ALLOCA_PRIMS)) { \ |
| prim = calloc(primcount, sizeof(*prim)); \ |
| if (!prim) { \ |
| _mesa_error(ctx, GL_OUT_OF_MEMORY, func); \ |
| return; \ |
| } \ |
| } else { \ |
| prim = alloca(primcount * sizeof(*prim)); \ |
| } \ |
| } while (0) |
| |
| #define FREE_PRIMS(prim, primcount) do { \ |
| if (primcount > MAX_ALLOCA_PRIMS) \ |
| free(prim); \ |
| } while (0) |
| |
| |
| /** |
| * Called from glMultiDrawArrays when in immediate mode. |
| */ |
| static void GLAPIENTRY |
| _mesa_exec_MultiDrawArrays(GLenum mode, const GLint *first, |
| const GLsizei *count, GLsizei primcount) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLint i; |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, |
| "glMultiDrawArrays(%s, %p, %p, %d)\n", |
| _mesa_enum_to_string(mode), first, count, primcount); |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_MultiDrawArrays(ctx, mode, count, primcount)) |
| return; |
| } |
| |
| if (skip_validated_draw(ctx)) |
| return; |
| |
| struct _mesa_prim *prim; |
| |
| ALLOC_PRIMS(prim, primcount, "glMultiDrawElements"); |
| |
| for (i = 0; i < primcount; i++) { |
| prim[i].begin = 1; |
| prim[i].end = 1; |
| prim[i].mode = mode; |
| prim[i].draw_id = i; |
| prim[i].start = first[i]; |
| prim[i].count = count[i]; |
| prim[i].basevertex = 0; |
| } |
| |
| ctx->Driver.Draw(ctx, prim, primcount, NULL, GL_FALSE, 0, 0, 1, 0, |
| NULL, 0); |
| |
| if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) |
| _mesa_flush(ctx); |
| |
| FREE_PRIMS(prim, primcount); |
| } |
| |
| |
| |
| /** |
| * Map GL_ELEMENT_ARRAY_BUFFER and print contents. |
| * For debugging. |
| */ |
| #if 0 |
| static void |
| dump_element_buffer(struct gl_context *ctx, GLenum type) |
| { |
| const GLvoid *map = |
| ctx->Driver.MapBufferRange(ctx, 0, |
| ctx->Array.VAO->IndexBufferObj->Size, |
| GL_MAP_READ_BIT, |
| ctx->Array.VAO->IndexBufferObj, |
| MAP_INTERNAL); |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| { |
| const GLubyte *us = (const GLubyte *) map; |
| GLint i; |
| for (i = 0; i < ctx->Array.VAO->IndexBufferObj->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.VAO->IndexBufferObj->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.VAO->IndexBufferObj->Size / 4; i++) { |
| printf("%08x ", us[i]); |
| if (i % 8 == 7) |
| printf("\n"); |
| } |
| printf("\n"); |
| } |
| break; |
| default: |
| ; |
| } |
| |
| ctx->Driver.UnmapBuffer(ctx, ctx->Array.VAO->IndexBufferObj, MAP_INTERNAL); |
| } |
| #endif |
| |
| |
| static bool |
| skip_draw_elements(struct gl_context *ctx, GLsizei count, |
| const GLvoid *indices) |
| { |
| if (count == 0) |
| return true; |
| |
| /* Not using a VBO for indices, so avoid NULL pointer derefs later. |
| */ |
| if (!ctx->Array.VAO->IndexBufferObj && indices == NULL) |
| return true; |
| |
| if (skip_validated_draw(ctx)) |
| return true; |
| |
| return false; |
| } |
| |
| |
| /** |
| * 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 |
| _mesa_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, GLuint numInstances, |
| GLuint baseInstance) |
| { |
| struct _mesa_index_buffer ib; |
| struct _mesa_prim prim; |
| |
| if (!index_bounds_valid) { |
| assert(start == 0u); |
| assert(end == ~0u); |
| } |
| |
| if (skip_draw_elements(ctx, count, indices)) |
| return; |
| |
| ib.count = count; |
| ib.obj = ctx->Array.VAO->IndexBufferObj; |
| ib.ptr = indices; |
| get_index_size(type, &ib); |
| |
| prim.begin = 1; |
| prim.end = 1; |
| prim.mode = mode; |
| prim.start = 0; |
| prim.count = count; |
| prim.basevertex = basevertex; |
| prim.draw_id = 0; |
| |
| /* 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. |
| */ |
| |
| ctx->Driver.Draw(ctx, &prim, 1, &ib, |
| index_bounds_valid, start, end, |
| numInstances, baseInstance, NULL, 0); |
| |
| if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) { |
| _mesa_flush(ctx); |
| } |
| } |
| |
| |
| /** |
| * Called by glDrawRangeElementsBaseVertex() in immediate mode. |
| */ |
| void GLAPIENTRY |
| _mesa_DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end, |
| GLsizei count, GLenum type, |
| const GLvoid * indices, GLint basevertex) |
| { |
| static GLuint warnCount = 0; |
| GLboolean index_bounds_valid = GL_TRUE; |
| |
| /* This is only useful to catch invalid values in the "end" parameter |
| * like ~0. |
| */ |
| GLuint max_element = 2 * 1000 * 1000 * 1000; /* just a big number */ |
| |
| GET_CURRENT_CONTEXT(ctx); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, |
| "glDrawRangeElementsBaseVertex(%s, %u, %u, %d, %s, %p, %d)\n", |
| _mesa_enum_to_string(mode), start, end, count, |
| _mesa_enum_to_string(type), indices, basevertex); |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_DrawRangeElements(ctx, mode, start, end, count, |
| type, indices)) |
| return; |
| } |
| |
| if ((int) end + basevertex < 0 || start + basevertex >= max_element) { |
| /* The application requested we draw using a range of indices that's |
| * outside the bounds of the current VBO. This is invalid and appears |
| * to give undefined results. The safest thing to do is to simply |
| * ignore the range, in case the application botched their range tracking |
| * but did provide valid indices. Also issue a warning indicating that |
| * the application is broken. |
| */ |
| if (warnCount++ < 10) { |
| _mesa_warning(ctx, "glDrawRangeElements(start %u, end %u, " |
| "basevertex %d, count %d, type 0x%x, indices=%p):\n" |
| "\trange is outside VBO bounds (max=%u); ignoring.\n" |
| "\tThis should be fixed in the application.", |
| start, end, basevertex, count, type, indices, |
| max_element - 1); |
| } |
| index_bounds_valid = GL_FALSE; |
| } |
| |
| /* 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 (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.VAO->IndexBufferObj ? |
| ctx->Array.VAO->IndexBufferObj->Name : 0, basevertex); |
| } |
| |
| if ((int) start + basevertex < 0 || end + basevertex >= max_element) |
| index_bounds_valid = GL_FALSE; |
| |
| #if 0 |
| check_draw_elements_data(ctx, count, type, indices, basevertex); |
| #else |
| (void) check_draw_elements_data; |
| #endif |
| |
| if (!index_bounds_valid) { |
| start = 0; |
| end = ~0; |
| } |
| |
| _mesa_validated_drawrangeelements(ctx, mode, index_bounds_valid, start, end, |
| count, type, indices, basevertex, 1, 0); |
| } |
| |
| |
| /** |
| * Called by glDrawRangeElements() in immediate mode. |
| */ |
| void GLAPIENTRY |
| _mesa_DrawRangeElements(GLenum mode, GLuint start, GLuint end, |
| GLsizei count, GLenum type, const GLvoid * indices) |
| { |
| if (MESA_VERBOSE & VERBOSE_DRAW) { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_debug(ctx, |
| "glDrawRangeElements(%s, %u, %u, %d, %s, %p)\n", |
| _mesa_enum_to_string(mode), start, end, count, |
| _mesa_enum_to_string(type), indices); |
| } |
| |
| _mesa_DrawRangeElementsBaseVertex(mode, start, end, count, type, |
| indices, 0); |
| } |
| |
| |
| /** |
| * Called by glDrawElements() in immediate mode. |
| */ |
| void GLAPIENTRY |
| _mesa_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_enum_to_string(mode), count, |
| _mesa_enum_to_string(type), indices); |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_DrawElements(ctx, mode, count, type, indices)) |
| return; |
| } |
| |
| _mesa_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0, |
| count, type, indices, 0, 1, 0); |
| } |
| |
| |
| /** |
| * Called by glDrawElementsBaseVertex() in immediate mode. |
| */ |
| void GLAPIENTRY |
| _mesa_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, |
| const GLvoid * indices, GLint basevertex) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, "glDrawElements(%s, %u, %s, %p)\n", |
| _mesa_enum_to_string(mode), count, |
| _mesa_enum_to_string(type), indices); |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_DrawElements(ctx, mode, count, type, indices)) |
| return; |
| } |
| |
| _mesa_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0, |
| count, type, indices, basevertex, 1, 0); |
| } |
| |
| |
| /** |
| * Called by glDrawElementsInstanced() in immediate mode. |
| */ |
| void GLAPIENTRY |
| _mesa_DrawElementsInstancedARB(GLenum mode, GLsizei count, GLenum type, |
| const GLvoid * indices, GLsizei numInstances) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, "glDrawElements(%s, %u, %s, %p)\n", |
| _mesa_enum_to_string(mode), count, |
| _mesa_enum_to_string(type), indices); |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, |
| indices, numInstances)) |
| return; |
| } |
| |
| _mesa_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0, |
| count, type, indices, 0, numInstances, 0); |
| } |
| |
| |
| /** |
| * Called by glDrawElementsInstancedBaseVertex() in immediate mode. |
| */ |
| void GLAPIENTRY |
| _mesa_DrawElementsInstancedBaseVertex(GLenum mode, GLsizei count, |
| GLenum type, const GLvoid * indices, |
| GLsizei numInstances, |
| GLint basevertex) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, |
| "glDrawElementsInstancedBaseVertex" |
| "(%s, %d, %s, %p, %d; %d)\n", |
| _mesa_enum_to_string(mode), count, |
| _mesa_enum_to_string(type), indices, |
| numInstances, basevertex); |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, |
| indices, numInstances)) |
| return; |
| } |
| |
| _mesa_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0, |
| count, type, indices, |
| basevertex, numInstances, 0); |
| } |
| |
| |
| /** |
| * Called by glDrawElementsInstancedBaseInstance() in immediate mode. |
| */ |
| void GLAPIENTRY |
| _mesa_DrawElementsInstancedBaseInstance(GLenum mode, GLsizei count, |
| GLenum type, |
| const GLvoid *indices, |
| GLsizei numInstances, |
| GLuint baseInstance) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, |
| "glDrawElementsInstancedBaseInstance" |
| "(%s, %d, %s, %p, %d, %d)\n", |
| _mesa_enum_to_string(mode), count, |
| _mesa_enum_to_string(type), indices, |
| numInstances, baseInstance); |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, |
| indices, numInstances)) |
| return; |
| } |
| |
| _mesa_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0, |
| count, type, indices, 0, numInstances, |
| baseInstance); |
| } |
| |
| |
| /** |
| * Called by glDrawElementsInstancedBaseVertexBaseInstance() in immediate mode. |
| */ |
| void GLAPIENTRY |
| _mesa_DrawElementsInstancedBaseVertexBaseInstance(GLenum mode, |
| GLsizei count, |
| GLenum type, |
| const GLvoid *indices, |
| GLsizei numInstances, |
| GLint basevertex, |
| GLuint baseInstance) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, |
| "glDrawElementsInstancedBaseVertexBaseInstance" |
| "(%s, %d, %s, %p, %d, %d, %d)\n", |
| _mesa_enum_to_string(mode), count, |
| _mesa_enum_to_string(type), indices, |
| numInstances, basevertex, baseInstance); |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, |
| indices, numInstances)) |
| return; |
| } |
| |
| _mesa_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0, |
| count, type, indices, basevertex, |
| numInstances, baseInstance); |
| } |
| |
| |
| /** |
| * Inner support for both _mesa_MultiDrawElements() and |
| * _mesa_MultiDrawRangeElements(). |
| * This does the actual rendering after we've checked array indexes, etc. |
| */ |
| static void |
| _mesa_validated_multidrawelements(struct gl_context *ctx, GLenum mode, |
| const GLsizei *count, GLenum type, |
| const GLvoid * const *indices, |
| GLsizei primcount, const GLint *basevertex) |
| { |
| struct _mesa_index_buffer ib; |
| uintptr_t min_index_ptr, max_index_ptr; |
| GLboolean fallback = GL_FALSE; |
| int i; |
| |
| if (primcount == 0) |
| return; |
| |
| get_index_size(type, &ib); |
| |
| 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] + |
| (count[i] << ib.index_size_shift)); |
| } |
| |
| /* 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 (ib.index_size_shift) { |
| for (i = 0; i < primcount; i++) { |
| if ((((uintptr_t) indices[i] - min_index_ptr) & |
| ((1 << ib.index_size_shift) - 1)) != 0) { |
| fallback = GL_TRUE; |
| break; |
| } |
| } |
| } |
| |
| if (ctx->Const.MultiDrawWithUserIndices) { |
| /* Check whether prim[i].start would overflow. */ |
| if (((max_index_ptr - min_index_ptr) >> ib.index_size_shift) > UINT_MAX) |
| fallback = GL_TRUE; |
| } else { |
| /* 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 (!ctx->Array.VAO->IndexBufferObj) |
| fallback = GL_TRUE; |
| } |
| |
| if (!fallback) { |
| struct _mesa_prim *prim; |
| |
| ALLOC_PRIMS(prim, primcount, "glMultiDrawElements"); |
| |
| ib.count = (max_index_ptr - min_index_ptr) >> ib.index_size_shift; |
| ib.obj = ctx->Array.VAO->IndexBufferObj; |
| ib.ptr = (void *) min_index_ptr; |
| |
| for (i = 0; i < primcount; i++) { |
| prim[i].begin = 1; |
| prim[i].end = 1; |
| prim[i].mode = mode; |
| prim[i].start = |
| ((uintptr_t) indices[i] - min_index_ptr) >> ib.index_size_shift; |
| prim[i].count = count[i]; |
| prim[i].draw_id = i; |
| if (basevertex != NULL) |
| prim[i].basevertex = basevertex[i]; |
| else |
| prim[i].basevertex = 0; |
| } |
| |
| ctx->Driver.Draw(ctx, prim, primcount, &ib, |
| false, 0, ~0, 1, 0, NULL, 0); |
| FREE_PRIMS(prim, primcount); |
| } |
| else { |
| /* render one prim at a time */ |
| for (i = 0; i < primcount; i++) { |
| if (count[i] == 0) |
| continue; |
| |
| ib.count = count[i]; |
| ib.obj = ctx->Array.VAO->IndexBufferObj; |
| ib.ptr = indices[i]; |
| |
| struct _mesa_prim prim; |
| prim.begin = 1; |
| prim.end = 1; |
| prim.mode = mode; |
| prim.start = 0; |
| prim.count = count[i]; |
| prim.draw_id = i; |
| if (basevertex != NULL) |
| prim.basevertex = basevertex[i]; |
| else |
| prim.basevertex = 0; |
| |
| ctx->Driver.Draw(ctx, &prim, 1, &ib, false, 0, ~0, 1, 0, NULL, 0); |
| } |
| } |
| |
| if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) { |
| _mesa_flush(ctx); |
| } |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type, |
| const GLvoid * const *indices, GLsizei primcount) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (!_mesa_validate_MultiDrawElements(ctx, mode, count, type, indices, |
| primcount)) |
| return; |
| |
| if (skip_validated_draw(ctx)) |
| return; |
| |
| _mesa_validated_multidrawelements(ctx, mode, count, type, indices, primcount, |
| NULL); |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_MultiDrawElementsBaseVertex(GLenum mode, |
| const GLsizei *count, GLenum type, |
| const GLvoid * const *indices, |
| GLsizei primcount, |
| const GLsizei *basevertex) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_MultiDrawElements(ctx, mode, count, type, indices, |
| primcount)) |
| return; |
| } |
| |
| if (skip_validated_draw(ctx)) |
| return; |
| |
| _mesa_validated_multidrawelements(ctx, mode, count, type, indices, primcount, |
| basevertex); |
| } |
| |
| |
| /** |
| * Draw a GL primitive using a vertex count obtained from transform feedback. |
| * \param mode the type of GL primitive to draw |
| * \param obj the transform feedback object to use |
| * \param stream index of the transform feedback stream from which to |
| * get the primitive count. |
| * \param numInstances number of instances to draw |
| */ |
| static void |
| _mesa_draw_transform_feedback(struct gl_context *ctx, GLenum mode, |
| struct gl_transform_feedback_object *obj, |
| GLuint stream, GLuint numInstances) |
| { |
| struct _mesa_prim prim; |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_DrawTransformFeedback(ctx, mode, obj, stream, |
| numInstances)) { |
| return; |
| } |
| } |
| |
| if (ctx->Driver.GetTransformFeedbackVertexCount && |
| (ctx->Const.AlwaysUseGetTransformFeedbackVertexCount || |
| !_mesa_all_varyings_in_vbos(ctx->Array.VAO))) { |
| GLsizei n = |
| ctx->Driver.GetTransformFeedbackVertexCount(ctx, obj, stream); |
| _mesa_draw_arrays(ctx, mode, 0, n, numInstances, 0, 0); |
| return; |
| } |
| |
| if (skip_validated_draw(ctx)) |
| return; |
| |
| /* init most fields to zero */ |
| memset(&prim, 0, sizeof(prim)); |
| prim.begin = 1; |
| prim.end = 1; |
| prim.mode = mode; |
| |
| /* Maybe we should do some primitive splitting for primitive restart |
| * (like in DrawArrays), but we have no way to know how many vertices |
| * will be rendered. */ |
| |
| ctx->Driver.Draw(ctx, &prim, 1, NULL, GL_FALSE, 0, ~0, numInstances, 0, |
| obj, stream); |
| |
| if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) { |
| _mesa_flush(ctx); |
| } |
| } |
| |
| |
| /** |
| * Like DrawArrays, but take the count from a transform feedback object. |
| * \param mode GL_POINTS, GL_LINES, GL_TRIANGLE_STRIP, etc. |
| * \param name the transform feedback object |
| * User still has to setup of the vertex attribute info with |
| * glVertexPointer, glColorPointer, etc. |
| * Part of GL_ARB_transform_feedback2. |
| */ |
| void GLAPIENTRY |
| _mesa_DrawTransformFeedback(GLenum mode, GLuint name) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| struct gl_transform_feedback_object *obj = |
| _mesa_lookup_transform_feedback_object(ctx, name); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, "glDrawTransformFeedback(%s, %d)\n", |
| _mesa_enum_to_string(mode), name); |
| |
| _mesa_draw_transform_feedback(ctx, mode, obj, 0, 1); |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_DrawTransformFeedbackStream(GLenum mode, GLuint name, GLuint stream) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| struct gl_transform_feedback_object *obj = |
| _mesa_lookup_transform_feedback_object(ctx, name); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, "glDrawTransformFeedbackStream(%s, %u, %u)\n", |
| _mesa_enum_to_string(mode), name, stream); |
| |
| _mesa_draw_transform_feedback(ctx, mode, obj, stream, 1); |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_DrawTransformFeedbackInstanced(GLenum mode, GLuint name, |
| GLsizei primcount) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| struct gl_transform_feedback_object *obj = |
| _mesa_lookup_transform_feedback_object(ctx, name); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, "glDrawTransformFeedbackInstanced(%s, %d)\n", |
| _mesa_enum_to_string(mode), name); |
| |
| _mesa_draw_transform_feedback(ctx, mode, obj, 0, primcount); |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_DrawTransformFeedbackStreamInstanced(GLenum mode, GLuint name, |
| GLuint stream, |
| GLsizei primcount) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| struct gl_transform_feedback_object *obj = |
| _mesa_lookup_transform_feedback_object(ctx, name); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, "glDrawTransformFeedbackStreamInstanced" |
| "(%s, %u, %u, %i)\n", |
| _mesa_enum_to_string(mode), name, stream, primcount); |
| |
| _mesa_draw_transform_feedback(ctx, mode, obj, stream, primcount); |
| } |
| |
| |
| static void |
| _mesa_validated_multidrawarraysindirect(struct gl_context *ctx, GLenum mode, |
| GLintptr indirect, |
| GLintptr drawcount_offset, |
| GLsizei drawcount, GLsizei stride, |
| struct gl_buffer_object *drawcount_buffer) |
| { |
| /* If drawcount_buffer is set, drawcount is the maximum draw count.*/ |
| if (drawcount == 0) |
| return; |
| |
| ctx->Driver.DrawIndirect(ctx, mode, ctx->DrawIndirectBuffer, indirect, |
| drawcount, stride, drawcount_buffer, |
| drawcount_offset, NULL); |
| |
| if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) |
| _mesa_flush(ctx); |
| } |
| |
| |
| static void |
| _mesa_validated_multidrawelementsindirect(struct gl_context *ctx, |
| GLenum mode, GLenum type, |
| GLintptr indirect, |
| GLintptr drawcount_offset, |
| GLsizei drawcount, GLsizei stride, |
| struct gl_buffer_object *drawcount_buffer) |
| { |
| /* If drawcount_buffer is set, drawcount is the maximum draw count.*/ |
| if (drawcount == 0) |
| return; |
| |
| /* NOTE: IndexBufferObj is guaranteed to be a VBO. */ |
| struct _mesa_index_buffer ib; |
| ib.count = 0; /* unknown */ |
| ib.obj = ctx->Array.VAO->IndexBufferObj; |
| ib.ptr = NULL; |
| get_index_size(type, &ib); |
| |
| ctx->Driver.DrawIndirect(ctx, mode, ctx->DrawIndirectBuffer, indirect, |
| drawcount, stride, drawcount_buffer, |
| drawcount_offset, &ib); |
| |
| if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) |
| _mesa_flush(ctx); |
| } |
| |
| |
| /** |
| * Like [Multi]DrawArrays/Elements, but they take most arguments from |
| * a buffer object. |
| */ |
| void GLAPIENTRY |
| _mesa_DrawArraysIndirect(GLenum mode, const GLvoid *indirect) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, "glDrawArraysIndirect(%s, %p)\n", |
| _mesa_enum_to_string(mode), indirect); |
| |
| /* From the ARB_draw_indirect spec: |
| * |
| * "Initially zero is bound to DRAW_INDIRECT_BUFFER. In the |
| * compatibility profile, this indicates that DrawArraysIndirect and |
| * DrawElementsIndirect are to source their arguments directly from the |
| * pointer passed as their <indirect> parameters." |
| */ |
| if (ctx->API == API_OPENGL_COMPAT && |
| !ctx->DrawIndirectBuffer) { |
| DrawArraysIndirectCommand *cmd = (DrawArraysIndirectCommand *) indirect; |
| |
| _mesa_DrawArraysInstancedBaseInstance(mode, cmd->first, cmd->count, |
| cmd->primCount, |
| cmd->baseInstance); |
| return; |
| } |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_DrawArraysIndirect(ctx, mode, indirect)) |
| return; |
| } |
| |
| if (skip_validated_draw(ctx)) |
| return; |
| |
| _mesa_validated_multidrawarraysindirect(ctx, mode, (GLintptr)indirect, |
| 0, 1, 16, NULL); |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_DrawElementsIndirect(GLenum mode, GLenum type, const GLvoid *indirect) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, "glDrawElementsIndirect(%s, %s, %p)\n", |
| _mesa_enum_to_string(mode), |
| _mesa_enum_to_string(type), indirect); |
| |
| /* From the ARB_draw_indirect spec: |
| * |
| * "Initially zero is bound to DRAW_INDIRECT_BUFFER. In the |
| * compatibility profile, this indicates that DrawArraysIndirect and |
| * DrawElementsIndirect are to source their arguments directly from the |
| * pointer passed as their <indirect> parameters." |
| */ |
| if (ctx->API == API_OPENGL_COMPAT && |
| !ctx->DrawIndirectBuffer) { |
| /* |
| * Unlike regular DrawElementsInstancedBaseVertex commands, the indices |
| * may not come from a client array and must come from an index buffer. |
| * If no element array buffer is bound, an INVALID_OPERATION error is |
| * generated. |
| */ |
| if (!ctx->Array.VAO->IndexBufferObj) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, |
| "glDrawElementsIndirect(no buffer bound " |
| "to GL_ELEMENT_ARRAY_BUFFER)"); |
| } else { |
| DrawElementsIndirectCommand *cmd = |
| (DrawElementsIndirectCommand *) indirect; |
| |
| /* Convert offset to pointer */ |
| void *offset = (void *) |
| (uintptr_t)((cmd->firstIndex * _mesa_sizeof_type(type)) & 0xffffffffUL); |
| |
| _mesa_DrawElementsInstancedBaseVertexBaseInstance(mode, cmd->count, |
| type, offset, |
| cmd->primCount, |
| cmd->baseVertex, |
| cmd->baseInstance); |
| } |
| |
| return; |
| } |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_DrawElementsIndirect(ctx, mode, type, indirect)) |
| return; |
| } |
| |
| if (skip_validated_draw(ctx)) |
| return; |
| |
| _mesa_validated_multidrawelementsindirect(ctx, mode, type, |
| (GLintptr)indirect, 0, |
| 1, 20, NULL); |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_MultiDrawArraysIndirect(GLenum mode, const GLvoid *indirect, |
| GLsizei primcount, GLsizei stride) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, "glMultiDrawArraysIndirect(%s, %p, %i, %i)\n", |
| _mesa_enum_to_string(mode), indirect, primcount, stride); |
| |
| /* If <stride> is zero, the array elements are treated as tightly packed. */ |
| if (stride == 0) |
| stride = sizeof(DrawArraysIndirectCommand); |
| |
| /* From the ARB_draw_indirect spec: |
| * |
| * "Initially zero is bound to DRAW_INDIRECT_BUFFER. In the |
| * compatibility profile, this indicates that DrawArraysIndirect and |
| * DrawElementsIndirect are to source their arguments directly from the |
| * pointer passed as their <indirect> parameters." |
| */ |
| if (ctx->API == API_OPENGL_COMPAT && |
| !ctx->DrawIndirectBuffer) { |
| |
| if (!_mesa_valid_draw_indirect_multi(ctx, primcount, stride, |
| "glMultiDrawArraysIndirect")) |
| return; |
| |
| const uint8_t *ptr = (const uint8_t *) indirect; |
| for (unsigned i = 0; i < primcount; i++) { |
| DrawArraysIndirectCommand *cmd = (DrawArraysIndirectCommand *) ptr; |
| _mesa_DrawArraysInstancedBaseInstance(mode, cmd->first, |
| cmd->count, cmd->primCount, |
| cmd->baseInstance); |
| |
| if (stride == 0) { |
| ptr += sizeof(DrawArraysIndirectCommand); |
| } else { |
| ptr += stride; |
| } |
| } |
| |
| return; |
| } |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_MultiDrawArraysIndirect(ctx, mode, indirect, |
| primcount, stride)) |
| return; |
| } |
| |
| if (skip_validated_draw(ctx)) |
| return; |
| |
| _mesa_validated_multidrawarraysindirect(ctx, mode, (GLintptr)indirect, 0, |
| primcount, stride, NULL); |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_MultiDrawElementsIndirect(GLenum mode, GLenum type, |
| const GLvoid *indirect, |
| GLsizei primcount, GLsizei stride) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, "glMultiDrawElementsIndirect(%s, %s, %p, %i, %i)\n", |
| _mesa_enum_to_string(mode), |
| _mesa_enum_to_string(type), indirect, primcount, stride); |
| |
| /* If <stride> is zero, the array elements are treated as tightly packed. */ |
| if (stride == 0) |
| stride = sizeof(DrawElementsIndirectCommand); |
| |
| |
| /* From the ARB_draw_indirect spec: |
| * |
| * "Initially zero is bound to DRAW_INDIRECT_BUFFER. In the |
| * compatibility profile, this indicates that DrawArraysIndirect and |
| * DrawElementsIndirect are to source their arguments directly from the |
| * pointer passed as their <indirect> parameters." |
| */ |
| if (ctx->API == API_OPENGL_COMPAT && |
| !ctx->DrawIndirectBuffer) { |
| /* |
| * Unlike regular DrawElementsInstancedBaseVertex commands, the indices |
| * may not come from a client array and must come from an index buffer. |
| * If no element array buffer is bound, an INVALID_OPERATION error is |
| * generated. |
| */ |
| if (!ctx->Array.VAO->IndexBufferObj) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, |
| "glMultiDrawElementsIndirect(no buffer bound " |
| "to GL_ELEMENT_ARRAY_BUFFER)"); |
| |
| return; |
| } |
| |
| if (!_mesa_valid_draw_indirect_multi(ctx, primcount, stride, |
| "glMultiDrawArraysIndirect")) |
| return; |
| |
| const uint8_t *ptr = (const uint8_t *) indirect; |
| for (unsigned i = 0; i < primcount; i++) { |
| _mesa_DrawElementsIndirect(mode, type, ptr); |
| |
| if (stride == 0) { |
| ptr += sizeof(DrawElementsIndirectCommand); |
| } else { |
| ptr += stride; |
| } |
| } |
| |
| return; |
| } |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_MultiDrawElementsIndirect(ctx, mode, type, indirect, |
| primcount, stride)) |
| return; |
| } |
| |
| if (skip_validated_draw(ctx)) |
| return; |
| |
| _mesa_validated_multidrawelementsindirect(ctx, mode, type, |
| (GLintptr)indirect, 0, primcount, |
| stride, NULL); |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_MultiDrawArraysIndirectCountARB(GLenum mode, GLintptr indirect, |
| GLintptr drawcount_offset, |
| GLsizei maxdrawcount, GLsizei stride) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, "glMultiDrawArraysIndirectCountARB" |
| "(%s, %lx, %lx, %i, %i)\n", |
| _mesa_enum_to_string(mode), |
| (unsigned long) indirect, (unsigned long) drawcount_offset, |
| maxdrawcount, stride); |
| |
| /* If <stride> is zero, the array elements are treated as tightly packed. */ |
| if (stride == 0) |
| stride = 4 * sizeof(GLuint); /* sizeof(DrawArraysIndirectCommand) */ |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_MultiDrawArraysIndirectCount(ctx, mode, |
| indirect, |
| drawcount_offset, |
| maxdrawcount, stride)) |
| return; |
| } |
| |
| if (skip_validated_draw(ctx)) |
| return; |
| |
| _mesa_validated_multidrawarraysindirect(ctx, mode, indirect, |
| drawcount_offset, maxdrawcount, |
| stride, ctx->ParameterBuffer); |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_MultiDrawElementsIndirectCountARB(GLenum mode, GLenum type, |
| GLintptr indirect, |
| GLintptr drawcount_offset, |
| GLsizei maxdrawcount, GLsizei stride) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| if (MESA_VERBOSE & VERBOSE_DRAW) |
| _mesa_debug(ctx, "glMultiDrawElementsIndirectCountARB" |
| "(%s, %s, %lx, %lx, %i, %i)\n", |
| _mesa_enum_to_string(mode), _mesa_enum_to_string(type), |
| (unsigned long) indirect, (unsigned long) drawcount_offset, |
| maxdrawcount, stride); |
| |
| /* If <stride> is zero, the array elements are treated as tightly packed. */ |
| if (stride == 0) |
| stride = 5 * sizeof(GLuint); /* sizeof(DrawElementsIndirectCommand) */ |
| |
| FLUSH_FOR_DRAW(ctx); |
| |
| _mesa_set_draw_vao(ctx, ctx->Array.VAO, enabled_filter(ctx)); |
| |
| if (_mesa_is_no_error_enabled(ctx)) { |
| if (ctx->NewState) |
| _mesa_update_state(ctx); |
| } else { |
| if (!_mesa_validate_MultiDrawElementsIndirectCount(ctx, mode, type, |
| indirect, |
| drawcount_offset, |
| maxdrawcount, stride)) |
| return; |
| } |
| |
| if (skip_validated_draw(ctx)) |
| return; |
| |
| _mesa_validated_multidrawelementsindirect(ctx, mode, type, indirect, |
| drawcount_offset, maxdrawcount, |
| stride, ctx->ParameterBuffer); |
| } |
| |
| |
| /** |
| * Initialize the dispatch table with the VBO functions for drawing. |
| */ |
| void |
| _mesa_initialize_exec_dispatch(const struct gl_context *ctx, |
| struct _glapi_table *exec) |
| { |
| SET_DrawArrays(exec, _mesa_DrawArrays); |
| SET_DrawElements(exec, _mesa_DrawElements); |
| |
| if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) { |
| SET_DrawRangeElements(exec, _mesa_DrawRangeElements); |
| } |
| |
| SET_MultiDrawArrays(exec, _mesa_exec_MultiDrawArrays); |
| SET_MultiDrawElementsEXT(exec, _mesa_MultiDrawElements); |
| |
| if (ctx->API == API_OPENGL_COMPAT) { |
| SET_Rectf(exec, _mesa_exec_Rectf); |
| SET_Rectd(exec, _mesa_exec_Rectd); |
| SET_Rectdv(exec, _mesa_exec_Rectdv); |
| SET_Rectfv(exec, _mesa_exec_Rectfv); |
| SET_Recti(exec, _mesa_exec_Recti); |
| SET_Rectiv(exec, _mesa_exec_Rectiv); |
| SET_Rects(exec, _mesa_exec_Rects); |
| SET_Rectsv(exec, _mesa_exec_Rectsv); |
| } |
| |
| if (ctx->API != API_OPENGLES && |
| ctx->Extensions.ARB_draw_elements_base_vertex) { |
| SET_DrawElementsBaseVertex(exec, _mesa_DrawElementsBaseVertex); |
| SET_MultiDrawElementsBaseVertex(exec, |
| _mesa_MultiDrawElementsBaseVertex); |
| |
| if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) { |
| SET_DrawRangeElementsBaseVertex(exec, |
| _mesa_DrawRangeElementsBaseVertex); |
| } |
| } |
| } |
| |
| |
| |
| /* GL_IBM_multimode_draw_arrays */ |
| void GLAPIENTRY |
| _mesa_MultiModeDrawArraysIBM( const GLenum * mode, const GLint * first, |
| const GLsizei * count, |
| GLsizei primcount, GLint modestride ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLint i; |
| |
| FLUSH_VERTICES(ctx, 0); |
| |
| for ( i = 0 ; i < primcount ; i++ ) { |
| if ( count[i] > 0 ) { |
| GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride)); |
| CALL_DrawArrays(ctx->CurrentServerDispatch, ( m, first[i], count[i] )); |
| } |
| } |
| } |
| |
| |
| /* GL_IBM_multimode_draw_arrays */ |
| void GLAPIENTRY |
| _mesa_MultiModeDrawElementsIBM( const GLenum * mode, const GLsizei * count, |
| GLenum type, const GLvoid * const * indices, |
| GLsizei primcount, GLint modestride ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLint i; |
| |
| FLUSH_VERTICES(ctx, 0); |
| |
| /* XXX not sure about ARB_vertex_buffer_object handling here */ |
| |
| for ( i = 0 ; i < primcount ; i++ ) { |
| if ( count[i] > 0 ) { |
| GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride)); |
| CALL_DrawElements(ctx->CurrentServerDispatch, ( m, count[i], type, |
| indices[i] )); |
| } |
| } |
| } |