The array type draw is no longer directly dependent on the vbo module.
Thus move array type draws into mesa/main/draw.c.
Rename symbols starting with vbo_* to _mesa_* and apply some
reindenting to make it consistent.
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
#include "main/depth.h"
#include "main/debug_output.h"
#include "main/dlist.h"
+#include "main/draw.h"
#include "main/drawpix.h"
#include "main/drawtex.h"
#include "main/rastpos.h"
#include "main/formatquery.h"
#include "main/dispatch.h"
#include "main/vdpau.h"
-#include "vbo/vbo.h"
/**
assert(ctx->Version > 0);
- vbo_initialize_exec_dispatch(ctx, exec);
+ _mesa_initialize_exec_dispatch(ctx, exec);
"""
main/depth.h \
main/dlist.c \
main/dlist.h \
+ main/draw.c \
+ main/draw.h \
main/drawpix.c \
main/drawpix.h \
main/drawtex.c \
vbo/vbo_attrib_tmp.h \
vbo/vbo_context.c \
vbo/vbo_exec_api.c \
- vbo/vbo_exec_array.c \
vbo/vbo_exec.c \
vbo/vbo_exec_draw.c \
vbo/vbo_exec_eval.c \
--- /dev/null
+/**************************************************************************
+ *
+ * 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 "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 (array->Enabled) {
+ const struct gl_vertex_buffer_binding *binding =
+ &vao->BufferBinding[array->BufferBindingIndex];
+ struct gl_buffer_object *bo = binding->BufferObj;
+ const void *data = array->Ptr;
+ if (_mesa_is_bufferobj(bo)) {
+ if (!bo->Mappings[MAP_INTERNAL].Pointer) {
+ /* need to map now */
+ bo->Mappings[MAP_INTERNAL].Pointer =
+ ctx->Driver.MapBufferRange(ctx, 0, bo->Size,
+ GL_MAP_READ_BIT, bo, MAP_INTERNAL);
+ }
+ data = ADD_POINTERS(_mesa_vertex_attrib_address(array, binding),
+ bo->Mappings[MAP_INTERNAL].Pointer);
+ }
+ switch (array->Type) {
+ case GL_FLOAT:
+ {
+ GLfloat *f = (GLfloat *) ((GLubyte *) data + binding->Stride * j);
+ GLint k;
+ for (k = 0; k < array->Size; k++) {
+ if (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->Type, array->Size, binding->Stride);
+ printf(" Address/offset %p in Buffer Object %u\n",
+ array->Ptr, bo->Name);
+ f[k] = 1.0F; /* 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_vertex_array_object *vao,
+ GLuint attrib)
+{
+ const struct gl_array_attributes *array = &vao->VertexAttrib[attrib];
+ if (array->Enabled) {
+ const struct gl_vertex_buffer_binding *binding =
+ &vao->BufferBinding[array->BufferBindingIndex];
+ struct gl_buffer_object *bo = binding->BufferObj;
+ if (_mesa_is_bufferobj(bo) && _mesa_bufferobj_mapped(bo, MAP_INTERNAL)) {
+ ctx->Driver.UnmapBuffer(ctx, bo, MAP_INTERNAL);
+ }
+ }
+}
+
+
+static inline int
+sizeof_ib_type(GLenum type)
+{
+ switch (type) {
+ case GL_UNSIGNED_INT:
+ return sizeof(GLuint);
+ case GL_UNSIGNED_SHORT:
+ return sizeof(GLushort);
+ case GL_UNSIGNED_BYTE:
+ return sizeof(GLubyte);
+ default:
+ assert(!"unsupported index data type");
+ /* In case assert is turned off */
+ return 0;
+ }
+}
+
+/**
+ * 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;
+ const void *elemMap;
+ GLint i;
+ GLuint k;
+
+ if (_mesa_is_bufferobj(vao->IndexBufferObj)) {
+ elemMap = ctx->Driver.MapBufferRange(ctx, 0,
+ vao->IndexBufferObj->Size,
+ GL_MAP_READ_BIT,
+ vao->IndexBufferObj, MAP_INTERNAL);
+ 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:
+ 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);
+ }
+ }
+
+ if (_mesa_is_bufferobj(vao->IndexBufferObj)) {
+ ctx->Driver.UnmapBuffer(ctx, vao->IndexBufferObj, MAP_INTERNAL);
+ }
+
+ for (k = 0; k < VERT_ATTRIB_MAX; k++) {
+ unmap_array_buffer(ctx, vao, k);
+ }
+}
+
+
+/**
+ * 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->VertexAttrib[VERT_ATTRIB_POS].Enabled)
+ 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->VertexAttrib[VERT_ATTRIB_POS].Enabled &&
+ !ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_GENERIC0].Enabled);
+ }
+ 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)
+{
+ const struct gl_vertex_array_object *vao = ctx->Array.VAO;
+
+ printf("_mesa_exec_DrawArrays(mode 0x%x, start %d, count %d):\n",
+ mode, start, count);
+
+ unsigned i;
+ for (i = 0; i < VERT_ATTRIB_MAX; ++i) {
+ const struct gl_array_attributes *array = &vao->VertexAttrib[i];
+ if (!array->Enabled)
+ continue;
+
+ 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 enabled %d "
+ "ptr %p Bufobj %u\n",
+ gl_vert_attrib_name((gl_vert_attrib) i),
+ array->Size, binding->Stride, array->Enabled,
+ array->Ptr, bufObj->Name);
+
+ if (_mesa_is_bufferobj(bufObj)) {
+ GLubyte *p = ctx->Driver.MapBufferRange(ctx, 0, bufObj->Size,
+ GL_MAP_READ_BIT, bufObj,
+ MAP_INTERNAL);
+ int offset = (int) (GLintptr)
+ _mesa_vertex_attrib_address(array, binding);
+
+ unsigned multiplier;
+ switch (array->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->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);
+ ctx->Driver.UnmapBuffer(ctx, bufObj, MAP_INTERNAL);
+ }
+ }
+}
+
+
+/**
+ * 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)
+{
+ struct _mesa_prim prim;
+
+ if (skip_validated_draw(ctx))
+ return;
+
+ /* OpenGL 4.5 says that primitive restart is ignored with non-indexed
+ * draws.
+ */
+ memset(&prim, 0, sizeof(prim));
+ prim.begin = 1;
+ prim.end = 1;
+ prim.mode = mode;
+ prim.num_instances = numInstances;
+ prim.base_instance = baseInstance;
+ prim.draw_id = drawID;
+ prim.is_indirect = 0;
+ prim.start = start;
+ prim.count = count;
+
+ ctx->Driver.Draw(ctx, &prim, 1, NULL,
+ GL_TRUE, start, start + count - 1, NULL, 0, NULL);
+
+ 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(GET_DISPATCH(), (GL_QUADS));
+ CALL_Vertex2f(GET_DISPATCH(), (x1, y1));
+ CALL_Vertex2f(GET_DISPATCH(), (x2, y1));
+ CALL_Vertex2f(GET_DISPATCH(), (x2, y2));
+ CALL_Vertex2f(GET_DISPATCH(), (x1, y2));
+ CALL_End(GET_DISPATCH(), ());
+}
+
+
+static void GLAPIENTRY
+_mesa_exec_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(GET_DISPATCH(), (prim));
+ for (i = i1; i <= i2; i++, u += du) {
+ CALL_EvalCoord1f(GET_DISPATCH(), (u));
+ }
+ CALL_End(GET_DISPATCH(), ());
+}
+
+
+static void GLAPIENTRY
+_mesa_exec_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;
+
+ switch (mode) {
+ case GL_POINT:
+ CALL_Begin(GET_DISPATCH(), (GL_POINTS));
+ for (v = v1, j = j1; j <= j2; j++, v += dv) {
+ for (u = u1, i = i1; i <= i2; i++, u += du) {
+ CALL_EvalCoord2f(GET_DISPATCH(), (u, v));
+ }
+ }
+ CALL_End(GET_DISPATCH(), ());
+ break;
+ case GL_LINE:
+ for (v = v1, j = j1; j <= j2; j++, v += dv) {
+ CALL_Begin(GET_DISPATCH(), (GL_LINE_STRIP));
+ for (u = u1, i = i1; i <= i2; i++, u += du) {
+ CALL_EvalCoord2f(GET_DISPATCH(), (u, v));
+ }
+ CALL_End(GET_DISPATCH(), ());
+ }
+ for (u = u1, i = i1; i <= i2; i++, u += du) {
+ CALL_Begin(GET_DISPATCH(), (GL_LINE_STRIP));
+ for (v = v1, j = j1; j <= j2; j++, v += dv) {
+ CALL_EvalCoord2f(GET_DISPATCH(), (u, v));
+ }
+ CALL_End(GET_DISPATCH(), ());
+ }
+ break;
+ case GL_FILL:
+ for (v = v1, j = j1; j < j2; j++, v += dv) {
+ CALL_Begin(GET_DISPATCH(), (GL_TRIANGLE_STRIP));
+ for (u = u1, i = i1; i <= i2; i++, u += du) {
+ CALL_EvalCoord2f(GET_DISPATCH(), (u, v));
+ CALL_EvalCoord2f(GET_DISPATCH(), (u, v + dv));
+ }
+ CALL_End(GET_DISPATCH(), ());
+ }
+ break;
+ }
+}
+
+
+/**
+ * Called from glDrawArrays when in immediate mode (not display list mode).
+ */
+static void GLAPIENTRY
+_mesa_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_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).
+ */
+static void GLAPIENTRY
+_mesa_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_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.
+ */
+static void GLAPIENTRY
+_mesa_exec_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);
+}
+
+
+/**
+ * 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;
+ }
+
+ for (i = 0; i < primcount; i++) {
+ if (count[i] > 0) {
+ if (0)
+ check_draw_arrays_data(ctx, first[i], count[i]);
+
+ /* The GL_ARB_shader_draw_parameters spec adds the following after the
+ * pseudo-code describing glMultiDrawArrays:
+ *
+ * "The index of the draw (<i> in the above pseudo-code) may be
+ * read by a vertex shader as <gl_DrawIDARB>, as described in
+ * Section 11.1.3.9."
+ */
+ _mesa_draw_arrays(ctx, mode, first[i], count[i], 1, 0, i);
+
+ if (0)
+ print_draw_arrays(ctx, mode, first[i], count[i]);
+ }
+ }
+}
+
+
+
+/**
+ * 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 (!_mesa_is_bufferobj(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.index_size = sizeof_ib_type(type);
+ ib.obj = ctx->Array.VAO->IndexBufferObj;
+ ib.ptr = indices;
+
+ prim.begin = 1;
+ prim.end = 1;
+ prim.pad = 0;
+ prim.mode = mode;
+ prim.start = 0;
+ prim.count = count;
+ prim.indexed = 1;
+ prim.is_indirect = 0;
+ prim.basevertex = basevertex;
+ prim.num_instances = numInstances;
+ prim.base_instance = baseInstance;
+ 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, NULL, 0, NULL);
+
+ if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) {
+ _mesa_flush(ctx);
+ }
+}
+
+
+/**
+ * Called by glDrawRangeElementsBaseVertex() in immediate mode.
+ */
+static void GLAPIENTRY
+_mesa_exec_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->Name, 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.
+ */
+static void GLAPIENTRY
+_mesa_exec_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_exec_DrawRangeElementsBaseVertex(mode, start, end, count, type,
+ indices, 0);
+}
+
+
+/**
+ * Called by glDrawElements() in immediate mode.
+ */
+static void GLAPIENTRY
+_mesa_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_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.
+ */
+static void GLAPIENTRY
+_mesa_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, "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.
+ */
+static void GLAPIENTRY
+_mesa_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, "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.
+ */
+static void GLAPIENTRY
+_mesa_exec_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.
+ */
+static void GLAPIENTRY
+_mesa_exec_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.
+ */
+static void GLAPIENTRY
+_mesa_exec_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;
+ struct _mesa_prim *prim;
+ unsigned int index_type_size = sizeof_ib_type(type);
+ uintptr_t min_index_ptr, max_index_ptr;
+ GLboolean fallback = GL_FALSE;
+ int i;
+
+ if (primcount == 0)
+ return;
+
+ prim = calloc(primcount, sizeof(*prim));
+ if (prim == NULL) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMultiDrawElements");
+ return;
+ }
+
+ 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;
+ }
+ }
+ }
+
+ /* Draw primitives individually if one count is zero, so we can easily skip
+ * that primitive.
+ */
+ for (i = 0; i < primcount; i++) {
+ if (count[i] == 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.VAO->IndexBufferObj))
+ fallback = GL_TRUE;
+
+ if (!fallback) {
+ ib.count = (max_index_ptr - min_index_ptr) / index_type_size;
+ ib.index_size = sizeof_ib_type(type);
+ ib.obj = ctx->Array.VAO->IndexBufferObj;
+ 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].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;
+ prim[i].base_instance = 0;
+ prim[i].draw_id = i;
+ prim[i].is_indirect = 0;
+ if (basevertex != NULL)
+ prim[i].basevertex = basevertex[i];
+ else
+ prim[i].basevertex = 0;
+ }
+
+ ctx->Driver.Draw(ctx, prim, primcount, &ib,
+ false, 0, ~0, NULL, 0, NULL);
+ }
+ else {
+ /* render one prim at a time */
+ for (i = 0; i < primcount; i++) {
+ if (count[i] == 0)
+ continue;
+ ib.count = count[i];
+ ib.index_size = sizeof_ib_type(type);
+ ib.obj = ctx->Array.VAO->IndexBufferObj;
+ ib.ptr = indices[i];
+
+ prim[0].begin = 1;
+ prim[0].end = 1;
+ 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;
+ prim[0].base_instance = 0;
+ prim[0].draw_id = i;
+ prim[0].is_indirect = 0;
+ if (basevertex != NULL)
+ prim[0].basevertex = basevertex[i];
+ else
+ prim[0].basevertex = 0;
+
+ ctx->Driver.Draw(ctx, prim, 1, &ib, false, 0, ~0, NULL, 0, NULL);
+ }
+ }
+
+ free(prim);
+
+ if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) {
+ _mesa_flush(ctx);
+ }
+}
+
+
+static void GLAPIENTRY
+_mesa_exec_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);
+}
+
+
+static void GLAPIENTRY
+_mesa_exec_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;
+ prim.num_instances = numInstances;
+ prim.base_instance = 0;
+ prim.is_indirect = 0;
+
+ /* 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, obj, stream, NULL);
+
+ 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.
+ */
+static void GLAPIENTRY
+_mesa_exec_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);
+}
+
+
+static void GLAPIENTRY
+_mesa_exec_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);
+}
+
+
+static void GLAPIENTRY
+_mesa_exec_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);
+}
+
+
+static void GLAPIENTRY
+_mesa_exec_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_drawarraysindirect(struct gl_context *ctx,
+ GLenum mode, const GLvoid *indirect)
+{
+ ctx->Driver.DrawIndirect(ctx, mode,
+ ctx->DrawIndirectBuffer, (GLsizeiptr) indirect,
+ 1 /* draw_count */ , 16 /* stride */ ,
+ NULL, 0, NULL);
+
+ if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH)
+ _mesa_flush(ctx);
+}
+
+
+static void
+_mesa_validated_multidrawarraysindirect(struct gl_context *ctx,
+ GLenum mode,
+ const GLvoid *indirect,
+ GLsizei primcount, GLsizei stride)
+{
+ GLsizeiptr offset = (GLsizeiptr) indirect;
+
+ if (primcount == 0)
+ return;
+
+ ctx->Driver.DrawIndirect(ctx, mode, ctx->DrawIndirectBuffer, offset,
+ primcount, stride, NULL, 0, NULL);
+
+ if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH)
+ _mesa_flush(ctx);
+}
+
+
+static void
+_mesa_validated_drawelementsindirect(struct gl_context *ctx,
+ GLenum mode, GLenum type,
+ const GLvoid *indirect)
+{
+ struct _mesa_index_buffer ib;
+
+ ib.count = 0; /* unknown */
+ ib.index_size = sizeof_ib_type(type);
+ ib.obj = ctx->Array.VAO->IndexBufferObj;
+ ib.ptr = NULL;
+
+ ctx->Driver.DrawIndirect(ctx, mode,
+ ctx->DrawIndirectBuffer, (GLsizeiptr) indirect,
+ 1 /* draw_count */ , 20 /* stride */ ,
+ NULL, 0, &ib);
+
+ if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH)
+ _mesa_flush(ctx);
+}
+
+
+static void
+_mesa_validated_multidrawelementsindirect(struct gl_context *ctx,
+ GLenum mode, GLenum type,
+ const GLvoid *indirect,
+ GLsizei primcount, GLsizei stride)
+{
+ struct _mesa_index_buffer ib;
+ GLsizeiptr offset = (GLsizeiptr) indirect;
+
+ if (primcount == 0)
+ return;
+
+ /* NOTE: IndexBufferObj is guaranteed to be a VBO. */
+
+ ib.count = 0; /* unknown */
+ ib.index_size = sizeof_ib_type(type);
+ ib.obj = ctx->Array.VAO->IndexBufferObj;
+ ib.ptr = NULL;
+
+ ctx->Driver.DrawIndirect(ctx, mode,
+ ctx->DrawIndirectBuffer, offset,
+ primcount, stride, NULL, 0, &ib);
+
+ if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH)
+ _mesa_flush(ctx);
+}
+
+
+/**
+ * Like [Multi]DrawArrays/Elements, but they take most arguments from
+ * a buffer object.
+ */
+static void GLAPIENTRY
+_mesa_exec_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 &&
+ !_mesa_is_bufferobj(ctx->DrawIndirectBuffer)) {
+ DrawArraysIndirectCommand *cmd = (DrawArraysIndirectCommand *) indirect;
+
+ _mesa_exec_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_drawarraysindirect(ctx, mode, indirect);
+}
+
+
+static void GLAPIENTRY
+_mesa_exec_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 &&
+ !_mesa_is_bufferobj(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 (!_mesa_is_bufferobj(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 *)
+ ((cmd->firstIndex * _mesa_sizeof_type(type)) & 0xffffffffUL);
+
+ _mesa_exec_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_drawelementsindirect(ctx, mode, type, indirect);
+}
+
+
+static void GLAPIENTRY
+_mesa_exec_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 &&
+ !_mesa_is_bufferobj(ctx->DrawIndirectBuffer)) {
+
+ if (!_mesa_valid_draw_indirect_multi(ctx, primcount, stride,
+ "glMultiDrawArraysIndirect"))
+ return;
+
+ const ubyte *ptr = (const ubyte *) indirect;
+ for (unsigned i = 0; i < primcount; i++) {
+ DrawArraysIndirectCommand *cmd = (DrawArraysIndirectCommand *) ptr;
+ _mesa_exec_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, indirect,
+ primcount, stride);
+}
+
+
+static void GLAPIENTRY
+_mesa_exec_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 &&
+ !_mesa_is_bufferobj(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 (!_mesa_is_bufferobj(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 ubyte *ptr = (const ubyte *) indirect;
+ for (unsigned i = 0; i < primcount; i++) {
+ _mesa_exec_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, indirect,
+ primcount, stride);
+}
+
+
+static void
+_mesa_validated_multidrawarraysindirectcount(struct gl_context *ctx,
+ GLenum mode,
+ GLintptr indirect,
+ GLintptr drawcount_offset,
+ GLsizei maxdrawcount,
+ GLsizei stride)
+{
+ GLsizeiptr offset = indirect;
+
+ if (maxdrawcount == 0)
+ return;
+
+ ctx->Driver.DrawIndirect(ctx, mode,
+ ctx->DrawIndirectBuffer, offset,
+ maxdrawcount, stride,
+ ctx->ParameterBuffer, drawcount_offset, NULL);
+
+ if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH)
+ _mesa_flush(ctx);
+}
+
+
+static void
+_mesa_validated_multidrawelementsindirectcount(struct gl_context *ctx,
+ GLenum mode, GLenum type,
+ GLintptr indirect,
+ GLintptr drawcount_offset,
+ GLsizei maxdrawcount,
+ GLsizei stride)
+{
+ struct _mesa_index_buffer ib;
+ GLsizeiptr offset = (GLsizeiptr) indirect;
+
+ if (maxdrawcount == 0)
+ return;
+
+ /* NOTE: IndexBufferObj is guaranteed to be a VBO. */
+
+ ib.count = 0; /* unknown */
+ ib.index_size = sizeof_ib_type(type);
+ ib.obj = ctx->Array.VAO->IndexBufferObj;
+ ib.ptr = NULL;
+
+ ctx->Driver.DrawIndirect(ctx, mode,
+ ctx->DrawIndirectBuffer, offset,
+ maxdrawcount, stride,
+ ctx->ParameterBuffer, drawcount_offset, &ib);
+
+ if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH)
+ _mesa_flush(ctx);
+}
+
+
+static void GLAPIENTRY
+_mesa_exec_MultiDrawArraysIndirectCount(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_multidrawarraysindirectcount(ctx, mode, indirect,
+ drawcount_offset,
+ maxdrawcount, stride);
+}
+
+
+static void GLAPIENTRY
+_mesa_exec_MultiDrawElementsIndirectCount(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_multidrawelementsindirectcount(ctx, mode, type, indirect,
+ drawcount_offset, maxdrawcount,
+ stride);
+}
+
+
+/**
+ * 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_exec_DrawArrays);
+ SET_DrawElements(exec, _mesa_exec_DrawElements);
+
+ if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) {
+ SET_DrawRangeElements(exec, _mesa_exec_DrawRangeElements);
+ }
+
+ SET_MultiDrawArrays(exec, _mesa_exec_MultiDrawArrays);
+ SET_MultiDrawElementsEXT(exec, _mesa_exec_MultiDrawElements);
+
+ if (ctx->API == API_OPENGL_COMPAT) {
+ SET_Rectf(exec, _mesa_exec_Rectf);
+ SET_EvalMesh1(exec, _mesa_exec_EvalMesh1);
+ SET_EvalMesh2(exec, _mesa_exec_EvalMesh2);
+ }
+
+ if (ctx->API != API_OPENGLES &&
+ ctx->Extensions.ARB_draw_elements_base_vertex) {
+ SET_DrawElementsBaseVertex(exec, _mesa_exec_DrawElementsBaseVertex);
+ SET_MultiDrawElementsBaseVertex(exec,
+ _mesa_exec_MultiDrawElementsBaseVertex);
+
+ if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) {
+ SET_DrawRangeElementsBaseVertex(exec,
+ _mesa_exec_DrawRangeElementsBaseVertex);
+ SET_DrawElementsInstancedBaseVertex(exec,
+ _mesa_exec_DrawElementsInstancedBaseVertex);
+ }
+ }
+
+ if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) {
+ SET_DrawArraysInstancedBaseInstance(exec,
+ _mesa_exec_DrawArraysInstancedBaseInstance);
+ SET_DrawElementsInstancedBaseInstance(exec,
+ _mesa_exec_DrawElementsInstancedBaseInstance);
+ SET_DrawElementsInstancedBaseVertexBaseInstance(exec,
+ _mesa_exec_DrawElementsInstancedBaseVertexBaseInstance);
+ }
+
+ if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles31(ctx)) {
+ SET_DrawArraysIndirect(exec, _mesa_exec_DrawArraysIndirect);
+ SET_DrawElementsIndirect(exec, _mesa_exec_DrawElementsIndirect);
+ }
+
+ if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) {
+ SET_DrawArraysInstancedARB(exec, _mesa_exec_DrawArraysInstanced);
+ SET_DrawElementsInstancedARB(exec, _mesa_exec_DrawElementsInstanced);
+ }
+
+ if (_mesa_is_desktop_gl(ctx)) {
+ SET_DrawTransformFeedback(exec, _mesa_exec_DrawTransformFeedback);
+ SET_DrawTransformFeedbackStream(exec,
+ _mesa_exec_DrawTransformFeedbackStream);
+ SET_DrawTransformFeedbackInstanced(exec,
+ _mesa_exec_DrawTransformFeedbackInstanced);
+ SET_DrawTransformFeedbackStreamInstanced(exec,
+ _mesa_exec_DrawTransformFeedbackStreamInstanced);
+ SET_MultiDrawArraysIndirect(exec, _mesa_exec_MultiDrawArraysIndirect);
+ SET_MultiDrawElementsIndirect(exec, _mesa_exec_MultiDrawElementsIndirect);
+ SET_MultiDrawArraysIndirectCountARB(exec,
+ _mesa_exec_MultiDrawArraysIndirectCount);
+ SET_MultiDrawElementsIndirectCountARB(exec,
+ _mesa_exec_MultiDrawElementsIndirectCount);
+ }
+}
+
+
+
+/**
+ * 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)
+{
+ _mesa_exec_DrawArrays(mode, first, count);
+}
+
+
+void GLAPIENTRY
+_mesa_DrawArraysInstanced(GLenum mode, GLint first, GLsizei count,
+ GLsizei primcount)
+{
+ _mesa_exec_DrawArraysInstanced(mode, first, count, primcount);
+}
+
+
+void GLAPIENTRY
+_mesa_DrawElements(GLenum mode, GLsizei count, GLenum type,
+ const GLvoid *indices)
+{
+ _mesa_exec_DrawElements(mode, count, type, indices);
+}
+
+
+void GLAPIENTRY
+_mesa_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
+ const GLvoid *indices, GLint basevertex)
+{
+ _mesa_exec_DrawElementsBaseVertex(mode, count, type, indices, basevertex);
+}
+
+
+void GLAPIENTRY
+_mesa_DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count,
+ GLenum type, const GLvoid * indices)
+{
+ _mesa_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)
+{
+ _mesa_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)
+{
+ _mesa_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)
+{
+ _mesa_exec_MultiDrawElementsBaseVertex(mode, count, type, indices,
+ primcount, basevertex);
+}
+
+
+void GLAPIENTRY
+_mesa_DrawTransformFeedback(GLenum mode, GLuint name)
+{
+ _mesa_exec_DrawTransformFeedback(mode, name);
+}
--- /dev/null
+/*
+ * mesa 3-D graphics library
+ *
+ * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \brief Array type draw functions, the main workhorse of any OpenGL API
+ * \author Keith Whitwell
+ */
+
+
+#ifndef DRAW_H
+#define DRAW_H
+
+#include <stdbool.h>
+#include "main/glheader.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct gl_context;
+
+struct _mesa_prim
+{
+ GLuint mode:8; /**< GL_POINTS, GL_LINES, GL_QUAD_STRIP, etc */
+ GLuint indexed:1;
+ GLuint begin:1;
+ GLuint end:1;
+ GLuint is_indirect:1;
+ GLuint pad:20;
+
+ GLuint start;
+ GLuint count;
+ GLint basevertex;
+ GLuint num_instances;
+ GLuint base_instance;
+ GLuint draw_id;
+
+ GLsizeiptr indirect_offset;
+};
+
+/* Would like to call this a "vbo_index_buffer", but this would be
+ * confusing as the indices are not neccessarily yet in a non-null
+ * buffer object.
+ */
+struct _mesa_index_buffer
+{
+ GLuint count;
+ unsigned index_size;
+ struct gl_buffer_object *obj;
+ const void *ptr;
+};
+
+
+void
+_mesa_initialize_exec_dispatch(const struct gl_context *ctx,
+ struct _glapi_table *exec);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif
'main/depth.h',
'main/dlist.c',
'main/dlist.h',
+ 'main/draw.c',
+ 'main/draw.h',
'main/drawpix.c',
'main/drawpix.h',
'main/drawtex.c',
'vbo/vbo_attrib_tmp.h',
'vbo/vbo_context.c',
'vbo/vbo_exec_api.c',
- 'vbo/vbo_exec_array.c',
'vbo/vbo_exec.c',
'vbo/vbo_exec_draw.c',
'vbo/vbo_exec_eval.c',
#include <stdbool.h>
#include "main/glheader.h"
+#include "main/draw.h"
#ifdef __cplusplus
extern "C" {
struct gl_context;
-struct _mesa_prim
-{
- GLuint mode:8; /**< GL_POINTS, GL_LINES, GL_QUAD_STRIP, etc */
- GLuint indexed:1;
- GLuint begin:1;
- GLuint end:1;
- GLuint is_indirect:1;
- GLuint pad:20;
-
- GLuint start;
- GLuint count;
- GLint basevertex;
- GLuint num_instances;
- GLuint base_instance;
- GLuint draw_id;
-
- GLsizeiptr indirect_offset;
-};
-
-/* Would like to call this a "vbo_index_buffer", but this would be
- * confusing as the indices are not neccessarily yet in a non-null
- * buffer object.
- */
-struct _mesa_index_buffer
-{
- GLuint count;
- unsigned index_size;
- struct gl_buffer_object *obj;
- const void *ptr;
-};
-
-
-
GLboolean
_vbo_CreateContext(struct gl_context *ctx);
+++ /dev/null
-/**************************************************************************
- *
- * 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 "main/arrayobj.h"
-#include "main/glheader.h"
-#include "main/context.h"
-#include "main/state.h"
-#include "main/draw_validate.h"
-#include "main/dispatch.h"
-#include "main/varray.h"
-#include "main/bufferobj.h"
-#include "main/enums.h"
-#include "main/macros.h"
-#include "main/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 (array->Enabled) {
- const struct gl_vertex_buffer_binding *binding =
- &vao->BufferBinding[array->BufferBindingIndex];
- struct gl_buffer_object *bo = binding->BufferObj;
- const void *data = array->Ptr;
- if (_mesa_is_bufferobj(bo)) {
- if (!bo->Mappings[MAP_INTERNAL].Pointer) {
- /* need to map now */
- bo->Mappings[MAP_INTERNAL].Pointer =
- ctx->Driver.MapBufferRange(ctx, 0, bo->Size,
- GL_MAP_READ_BIT, bo, MAP_INTERNAL);
- }
- data = ADD_POINTERS(_mesa_vertex_attrib_address(array, binding),
- bo->Mappings[MAP_INTERNAL].Pointer);
- }
- switch (array->Type) {
- case GL_FLOAT:
- {
- GLfloat *f = (GLfloat *) ((GLubyte *) data + binding->Stride * j);
- GLint k;
- for (k = 0; k < array->Size; k++) {
- if (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->Type, array->Size, binding->Stride);
- printf(" Address/offset %p in Buffer Object %u\n",
- array->Ptr, bo->Name);
- f[k] = 1.0F; /* 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_vertex_array_object *vao,
- GLuint attrib)
-{
- const struct gl_array_attributes *array = &vao->VertexAttrib[attrib];
- if (array->Enabled) {
- const struct gl_vertex_buffer_binding *binding =
- &vao->BufferBinding[array->BufferBindingIndex];
- struct gl_buffer_object *bo = binding->BufferObj;
- if (_mesa_is_bufferobj(bo) && _mesa_bufferobj_mapped(bo, MAP_INTERNAL)) {
- ctx->Driver.UnmapBuffer(ctx, bo, MAP_INTERNAL);
- }
- }
-}
-
-
-static inline int
-sizeof_ib_type(GLenum type)
-{
- switch (type) {
- case GL_UNSIGNED_INT:
- return sizeof(GLuint);
- case GL_UNSIGNED_SHORT:
- return sizeof(GLushort);
- case GL_UNSIGNED_BYTE:
- return sizeof(GLubyte);
- default:
- assert(!"unsupported index data type");
- /* In case assert is turned off */
- return 0;
- }
-}
-
-/**
- * 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;
- const void *elemMap;
- GLint i;
- GLuint k;
-
- if (_mesa_is_bufferobj(vao->IndexBufferObj)) {
- elemMap = ctx->Driver.MapBufferRange(ctx, 0,
- vao->IndexBufferObj->Size,
- GL_MAP_READ_BIT,
- vao->IndexBufferObj, MAP_INTERNAL);
- 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:
- 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);
- }
- }
-
- if (_mesa_is_bufferobj(vao->IndexBufferObj)) {
- ctx->Driver.UnmapBuffer(ctx, vao->IndexBufferObj, MAP_INTERNAL);
- }
-
- for (k = 0; k < VERT_ATTRIB_MAX; k++) {
- unmap_array_buffer(ctx, vao, k);
- }
-}
-
-
-/**
- * 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->VertexAttrib[VERT_ATTRIB_POS].Enabled)
- 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->VertexAttrib[VERT_ATTRIB_POS].Enabled &&
- !ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_GENERIC0].Enabled);
- }
- 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)
-{
- const struct gl_vertex_array_object *vao = ctx->Array.VAO;
-
- printf("vbo_exec_DrawArrays(mode 0x%x, start %d, count %d):\n",
- mode, start, count);
-
- unsigned i;
- for (i = 0; i < VERT_ATTRIB_MAX; ++i) {
- const struct gl_array_attributes *array = &vao->VertexAttrib[i];
- if (!array->Enabled)
- continue;
-
- 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 enabled %d "
- "ptr %p Bufobj %u\n",
- gl_vert_attrib_name((gl_vert_attrib) i),
- array->Size, binding->Stride, array->Enabled,
- array->Ptr, bufObj->Name);
-
- if (_mesa_is_bufferobj(bufObj)) {
- GLubyte *p = ctx->Driver.MapBufferRange(ctx, 0, bufObj->Size,
- GL_MAP_READ_BIT, bufObj,
- MAP_INTERNAL);
- int offset = (int) (GLintptr)
- _mesa_vertex_attrib_address(array, binding);
-
- unsigned multiplier;
- switch (array->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->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);
- ctx->Driver.UnmapBuffer(ctx, bufObj, MAP_INTERNAL);
- }
- }
-}
-
-
-/**
- * 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
-vbo_draw_arrays(struct gl_context *ctx, GLenum mode, GLint start,
- GLsizei count, GLuint numInstances, GLuint baseInstance,
- GLuint drawID)
-{
- struct _mesa_prim prim;
-
- if (skip_validated_draw(ctx))
- return;
-
- /* OpenGL 4.5 says that primitive restart is ignored with non-indexed
- * draws.
- */
- memset(&prim, 0, sizeof(prim));
- prim.begin = 1;
- prim.end = 1;
- prim.mode = mode;
- prim.num_instances = numInstances;
- prim.base_instance = baseInstance;
- prim.draw_id = drawID;
- prim.is_indirect = 0;
- prim.start = start;
- prim.count = count;
-
- ctx->Driver.Draw(ctx, &prim, 1, NULL,
- GL_TRUE, start, start + count - 1, NULL, 0, NULL);
-
- if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) {
- _mesa_flush(ctx);
- }
-}
-
-
-/**
- * Execute a glRectf() function.
- */
-static void GLAPIENTRY
-vbo_exec_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
-{
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- CALL_Begin(GET_DISPATCH(), (GL_QUADS));
- CALL_Vertex2f(GET_DISPATCH(), (x1, y1));
- CALL_Vertex2f(GET_DISPATCH(), (x2, y1));
- CALL_Vertex2f(GET_DISPATCH(), (x2, y2));
- CALL_Vertex2f(GET_DISPATCH(), (x1, y2));
- CALL_End(GET_DISPATCH(), ());
-}
-
-
-static void GLAPIENTRY
-vbo_exec_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(GET_DISPATCH(), (prim));
- for (i = i1; i <= i2; i++, u += du) {
- CALL_EvalCoord1f(GET_DISPATCH(), (u));
- }
- CALL_End(GET_DISPATCH(), ());
-}
-
-
-static void GLAPIENTRY
-vbo_exec_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;
-
- switch (mode) {
- case GL_POINT:
- CALL_Begin(GET_DISPATCH(), (GL_POINTS));
- for (v = v1, j = j1; j <= j2; j++, v += dv) {
- for (u = u1, i = i1; i <= i2; i++, u += du) {
- CALL_EvalCoord2f(GET_DISPATCH(), (u, v));
- }
- }
- CALL_End(GET_DISPATCH(), ());
- break;
- case GL_LINE:
- for (v = v1, j = j1; j <= j2; j++, v += dv) {
- CALL_Begin(GET_DISPATCH(), (GL_LINE_STRIP));
- for (u = u1, i = i1; i <= i2; i++, u += du) {
- CALL_EvalCoord2f(GET_DISPATCH(), (u, v));
- }
- CALL_End(GET_DISPATCH(), ());
- }
- for (u = u1, i = i1; i <= i2; i++, u += du) {
- CALL_Begin(GET_DISPATCH(), (GL_LINE_STRIP));
- for (v = v1, j = j1; j <= j2; j++, v += dv) {
- CALL_EvalCoord2f(GET_DISPATCH(), (u, v));
- }
- CALL_End(GET_DISPATCH(), ());
- }
- break;
- case GL_FILL:
- for (v = v1, j = j1; j < j2; j++, v += dv) {
- CALL_Begin(GET_DISPATCH(), (GL_TRIANGLE_STRIP));
- for (u = u1, i = i1; i <= i2; i++, u += du) {
- CALL_EvalCoord2f(GET_DISPATCH(), (u, v));
- CALL_EvalCoord2f(GET_DISPATCH(), (u, v + dv));
- }
- CALL_End(GET_DISPATCH(), ());
- }
- break;
- }
-}
-
-
-/**
- * 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_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);
-
- vbo_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).
- */
-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_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);
-
- vbo_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.
- */
-static void GLAPIENTRY
-vbo_exec_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);
-
- vbo_draw_arrays(ctx, mode, first, count, numInstances, baseInstance, 0);
-
- if (0)
- print_draw_arrays(ctx, mode, first, count);
-}
-
-
-/**
- * Called from glMultiDrawArrays when in immediate mode.
- */
-static void GLAPIENTRY
-vbo_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;
- }
-
- for (i = 0; i < primcount; i++) {
- if (count[i] > 0) {
- if (0)
- check_draw_arrays_data(ctx, first[i], count[i]);
-
- /* The GL_ARB_shader_draw_parameters spec adds the following after the
- * pseudo-code describing glMultiDrawArrays:
- *
- * "The index of the draw (<i> in the above pseudo-code) may be
- * read by a vertex shader as <gl_DrawIDARB>, as described in
- * Section 11.1.3.9."
- */
- vbo_draw_arrays(ctx, mode, first[i], count[i], 1, 0, i);
-
- if (0)
- print_draw_arrays(ctx, mode, first[i], count[i]);
- }
- }
-}
-
-
-
-/**
- * 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 (!_mesa_is_bufferobj(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
-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, 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.index_size = sizeof_ib_type(type);
- ib.obj = ctx->Array.VAO->IndexBufferObj;
- ib.ptr = indices;
-
- prim.begin = 1;
- prim.end = 1;
- prim.pad = 0;
- prim.mode = mode;
- prim.start = 0;
- prim.count = count;
- prim.indexed = 1;
- prim.is_indirect = 0;
- prim.basevertex = basevertex;
- prim.num_instances = numInstances;
- prim.base_instance = baseInstance;
- 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, NULL, 0, NULL);
-
- if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) {
- _mesa_flush(ctx);
- }
-}
-
-
-/**
- * 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;
- 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->Name, 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;
- }
-
- vbo_validated_drawrangeelements(ctx, mode, index_bounds_valid, start, end,
- count, type, indices, basevertex, 1, 0);
-}
-
-
-/**
- * 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)
-{
- 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);
- }
-
- 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_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;
- }
-
- vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0,
- count, type, indices, 0, 1, 0);
-}
-
-
-/**
- * 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, "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;
- }
-
- vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0,
- count, type, indices, basevertex, 1, 0);
-}
-
-
-/**
- * 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, "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;
- }
-
- vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0,
- count, type, indices, 0, numInstances, 0);
-}
-
-
-/**
- * Called by glDrawElementsInstancedBaseVertex() in immediate mode.
- */
-static void GLAPIENTRY
-vbo_exec_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;
- }
-
- vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0,
- count, type, indices,
- basevertex, numInstances, 0);
-}
-
-
-/**
- * Called by glDrawElementsInstancedBaseInstance() in immediate mode.
- */
-static void GLAPIENTRY
-vbo_exec_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;
- }
-
- vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0,
- count, type, indices, 0, numInstances,
- baseInstance);
-}
-
-
-/**
- * Called by glDrawElementsInstancedBaseVertexBaseInstance() in immediate mode.
- */
-static void GLAPIENTRY
-vbo_exec_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;
- }
-
- vbo_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
-vbo_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;
- struct _mesa_prim *prim;
- unsigned int index_type_size = sizeof_ib_type(type);
- uintptr_t min_index_ptr, max_index_ptr;
- GLboolean fallback = GL_FALSE;
- int i;
-
- if (primcount == 0)
- return;
-
- prim = calloc(primcount, sizeof(*prim));
- if (prim == NULL) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMultiDrawElements");
- return;
- }
-
- 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;
- }
- }
- }
-
- /* Draw primitives individually if one count is zero, so we can easily skip
- * that primitive.
- */
- for (i = 0; i < primcount; i++) {
- if (count[i] == 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.VAO->IndexBufferObj))
- fallback = GL_TRUE;
-
- if (!fallback) {
- ib.count = (max_index_ptr - min_index_ptr) / index_type_size;
- ib.index_size = sizeof_ib_type(type);
- ib.obj = ctx->Array.VAO->IndexBufferObj;
- 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].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;
- prim[i].base_instance = 0;
- prim[i].draw_id = i;
- prim[i].is_indirect = 0;
- if (basevertex != NULL)
- prim[i].basevertex = basevertex[i];
- else
- prim[i].basevertex = 0;
- }
-
- ctx->Driver.Draw(ctx, prim, primcount, &ib,
- false, 0, ~0, NULL, 0, NULL);
- }
- else {
- /* render one prim at a time */
- for (i = 0; i < primcount; i++) {
- if (count[i] == 0)
- continue;
- ib.count = count[i];
- ib.index_size = sizeof_ib_type(type);
- ib.obj = ctx->Array.VAO->IndexBufferObj;
- ib.ptr = indices[i];
-
- prim[0].begin = 1;
- prim[0].end = 1;
- 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;
- prim[0].base_instance = 0;
- prim[0].draw_id = i;
- prim[0].is_indirect = 0;
- if (basevertex != NULL)
- prim[0].basevertex = basevertex[i];
- else
- prim[0].basevertex = 0;
-
- ctx->Driver.Draw(ctx, prim, 1, &ib, false, 0, ~0, NULL, 0, NULL);
- }
- }
-
- free(prim);
-
- if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) {
- _mesa_flush(ctx);
- }
-}
-
-
-static void GLAPIENTRY
-vbo_exec_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;
-
- 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 * 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;
-
- vbo_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
-vbo_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);
- vbo_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;
- prim.num_instances = numInstances;
- prim.base_instance = 0;
- prim.is_indirect = 0;
-
- /* 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, obj, stream, NULL);
-
- 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.
- */
-static void GLAPIENTRY
-vbo_exec_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);
-
- vbo_draw_transform_feedback(ctx, mode, obj, 0, 1);
-}
-
-
-static void GLAPIENTRY
-vbo_exec_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);
-
- vbo_draw_transform_feedback(ctx, mode, obj, stream, 1);
-}
-
-
-static void GLAPIENTRY
-vbo_exec_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);
-
- vbo_draw_transform_feedback(ctx, mode, obj, 0, primcount);
-}
-
-
-static void GLAPIENTRY
-vbo_exec_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);
-
- vbo_draw_transform_feedback(ctx, mode, obj, stream, primcount);
-}
-
-
-static void
-vbo_validated_drawarraysindirect(struct gl_context *ctx,
- GLenum mode, const GLvoid *indirect)
-{
- ctx->Driver.DrawIndirect(ctx, mode,
- ctx->DrawIndirectBuffer, (GLsizeiptr) indirect,
- 1 /* draw_count */ , 16 /* stride */ ,
- NULL, 0, NULL);
-
- if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH)
- _mesa_flush(ctx);
-}
-
-
-static void
-vbo_validated_multidrawarraysindirect(struct gl_context *ctx,
- GLenum mode,
- const GLvoid *indirect,
- GLsizei primcount, GLsizei stride)
-{
- GLsizeiptr offset = (GLsizeiptr) indirect;
-
- if (primcount == 0)
- return;
-
- ctx->Driver.DrawIndirect(ctx, mode, ctx->DrawIndirectBuffer, offset,
- primcount, stride, NULL, 0, NULL);
-
- if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH)
- _mesa_flush(ctx);
-}
-
-
-static void
-vbo_validated_drawelementsindirect(struct gl_context *ctx,
- GLenum mode, GLenum type,
- const GLvoid *indirect)
-{
- struct _mesa_index_buffer ib;
-
- ib.count = 0; /* unknown */
- ib.index_size = sizeof_ib_type(type);
- ib.obj = ctx->Array.VAO->IndexBufferObj;
- ib.ptr = NULL;
-
- ctx->Driver.DrawIndirect(ctx, mode,
- ctx->DrawIndirectBuffer, (GLsizeiptr) indirect,
- 1 /* draw_count */ , 20 /* stride */ ,
- NULL, 0, &ib);
-
- if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH)
- _mesa_flush(ctx);
-}
-
-
-static void
-vbo_validated_multidrawelementsindirect(struct gl_context *ctx,
- GLenum mode, GLenum type,
- const GLvoid *indirect,
- GLsizei primcount, GLsizei stride)
-{
- struct _mesa_index_buffer ib;
- GLsizeiptr offset = (GLsizeiptr) indirect;
-
- if (primcount == 0)
- return;
-
- /* NOTE: IndexBufferObj is guaranteed to be a VBO. */
-
- ib.count = 0; /* unknown */
- ib.index_size = sizeof_ib_type(type);
- ib.obj = ctx->Array.VAO->IndexBufferObj;
- ib.ptr = NULL;
-
- ctx->Driver.DrawIndirect(ctx, mode,
- ctx->DrawIndirectBuffer, offset,
- primcount, stride, NULL, 0, &ib);
-
- if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH)
- _mesa_flush(ctx);
-}
-
-
-/**
- * Like [Multi]DrawArrays/Elements, but they take most arguments from
- * a buffer object.
- */
-static void GLAPIENTRY
-vbo_exec_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 &&
- !_mesa_is_bufferobj(ctx->DrawIndirectBuffer)) {
- DrawArraysIndirectCommand *cmd = (DrawArraysIndirectCommand *) indirect;
-
- vbo_exec_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;
-
- vbo_validated_drawarraysindirect(ctx, mode, indirect);
-}
-
-
-static void GLAPIENTRY
-vbo_exec_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 &&
- !_mesa_is_bufferobj(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 (!_mesa_is_bufferobj(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 *)
- ((cmd->firstIndex * _mesa_sizeof_type(type)) & 0xffffffffUL);
-
- vbo_exec_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;
-
- vbo_validated_drawelementsindirect(ctx, mode, type, indirect);
-}
-
-
-static void GLAPIENTRY
-vbo_exec_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 &&
- !_mesa_is_bufferobj(ctx->DrawIndirectBuffer)) {
-
- if (!_mesa_valid_draw_indirect_multi(ctx, primcount, stride,
- "glMultiDrawArraysIndirect"))
- return;
-
- const ubyte *ptr = (const ubyte *) indirect;
- for (unsigned i = 0; i < primcount; i++) {
- DrawArraysIndirectCommand *cmd = (DrawArraysIndirectCommand *) ptr;
- vbo_exec_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;
-
- vbo_validated_multidrawarraysindirect(ctx, mode, indirect,
- primcount, stride);
-}
-
-
-static void GLAPIENTRY
-vbo_exec_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 &&
- !_mesa_is_bufferobj(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 (!_mesa_is_bufferobj(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 ubyte *ptr = (const ubyte *) indirect;
- for (unsigned i = 0; i < primcount; i++) {
- vbo_exec_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;
-
- vbo_validated_multidrawelementsindirect(ctx, mode, type, indirect,
- primcount, stride);
-}
-
-
-static void
-vbo_validated_multidrawarraysindirectcount(struct gl_context *ctx,
- GLenum mode,
- GLintptr indirect,
- GLintptr drawcount_offset,
- GLsizei maxdrawcount,
- GLsizei stride)
-{
- GLsizeiptr offset = indirect;
-
- if (maxdrawcount == 0)
- return;
-
- ctx->Driver.DrawIndirect(ctx, mode,
- ctx->DrawIndirectBuffer, offset,
- maxdrawcount, stride,
- ctx->ParameterBuffer, drawcount_offset, NULL);
-
- if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH)
- _mesa_flush(ctx);
-}
-
-
-static void
-vbo_validated_multidrawelementsindirectcount(struct gl_context *ctx,
- GLenum mode, GLenum type,
- GLintptr indirect,
- GLintptr drawcount_offset,
- GLsizei maxdrawcount,
- GLsizei stride)
-{
- struct _mesa_index_buffer ib;
- GLsizeiptr offset = (GLsizeiptr) indirect;
-
- if (maxdrawcount == 0)
- return;
-
- /* NOTE: IndexBufferObj is guaranteed to be a VBO. */
-
- ib.count = 0; /* unknown */
- ib.index_size = sizeof_ib_type(type);
- ib.obj = ctx->Array.VAO->IndexBufferObj;
- ib.ptr = NULL;
-
- ctx->Driver.DrawIndirect(ctx, mode,
- ctx->DrawIndirectBuffer, offset,
- maxdrawcount, stride,
- ctx->ParameterBuffer, drawcount_offset, &ib);
-
- if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH)
- _mesa_flush(ctx);
-}
-
-
-static void GLAPIENTRY
-vbo_exec_MultiDrawArraysIndirectCount(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;
-
- vbo_validated_multidrawarraysindirectcount(ctx, mode, indirect,
- drawcount_offset,
- maxdrawcount, stride);
-}
-
-
-static void GLAPIENTRY
-vbo_exec_MultiDrawElementsIndirectCount(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;
-
- vbo_validated_multidrawelementsindirectcount(ctx, mode, type, indirect,
- drawcount_offset, maxdrawcount,
- stride);
-}
-
-
-/**
- * Initialize the dispatch table with the VBO functions for drawing.
- */
-void
-vbo_initialize_exec_dispatch(const struct gl_context *ctx,
- struct _glapi_table *exec)
-{
- SET_DrawArrays(exec, vbo_exec_DrawArrays);
- SET_DrawElements(exec, vbo_exec_DrawElements);
-
- if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) {
- SET_DrawRangeElements(exec, vbo_exec_DrawRangeElements);
- }
-
- SET_MultiDrawArrays(exec, vbo_exec_MultiDrawArrays);
- SET_MultiDrawElementsEXT(exec, vbo_exec_MultiDrawElements);
-
- if (ctx->API == API_OPENGL_COMPAT) {
- SET_Rectf(exec, vbo_exec_Rectf);
- SET_EvalMesh1(exec, vbo_exec_EvalMesh1);
- SET_EvalMesh2(exec, vbo_exec_EvalMesh2);
- }
-
- if (ctx->API != API_OPENGLES &&
- ctx->Extensions.ARB_draw_elements_base_vertex) {
- SET_DrawElementsBaseVertex(exec, vbo_exec_DrawElementsBaseVertex);
- SET_MultiDrawElementsBaseVertex(exec,
- vbo_exec_MultiDrawElementsBaseVertex);
-
- if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) {
- SET_DrawRangeElementsBaseVertex(exec,
- vbo_exec_DrawRangeElementsBaseVertex);
- SET_DrawElementsInstancedBaseVertex(exec,
- vbo_exec_DrawElementsInstancedBaseVertex);
- }
- }
-
- if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) {
- SET_DrawArraysInstancedBaseInstance(exec,
- vbo_exec_DrawArraysInstancedBaseInstance);
- SET_DrawElementsInstancedBaseInstance(exec,
- vbo_exec_DrawElementsInstancedBaseInstance);
- SET_DrawElementsInstancedBaseVertexBaseInstance(exec,
- vbo_exec_DrawElementsInstancedBaseVertexBaseInstance);
- }
-
- if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles31(ctx)) {
- SET_DrawArraysIndirect(exec, vbo_exec_DrawArraysIndirect);
- SET_DrawElementsIndirect(exec, vbo_exec_DrawElementsIndirect);
- }
-
- if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) {
- SET_DrawArraysInstancedARB(exec, vbo_exec_DrawArraysInstanced);
- SET_DrawElementsInstancedARB(exec, vbo_exec_DrawElementsInstanced);
- }
-
- if (_mesa_is_desktop_gl(ctx)) {
- SET_DrawTransformFeedback(exec, vbo_exec_DrawTransformFeedback);
- SET_DrawTransformFeedbackStream(exec,
- vbo_exec_DrawTransformFeedbackStream);
- SET_DrawTransformFeedbackInstanced(exec,
- vbo_exec_DrawTransformFeedbackInstanced);
- SET_DrawTransformFeedbackStreamInstanced(exec,
- vbo_exec_DrawTransformFeedbackStreamInstanced);
- SET_MultiDrawArraysIndirect(exec, vbo_exec_MultiDrawArraysIndirect);
- SET_MultiDrawElementsIndirect(exec, vbo_exec_MultiDrawElementsIndirect);
- SET_MultiDrawArraysIndirectCountARB(exec,
- vbo_exec_MultiDrawArraysIndirectCount);
- SET_MultiDrawElementsIndirectCountARB(exec,
- vbo_exec_MultiDrawElementsIndirectCount);
- }
-}
-
-
-
-/**
- * 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_DrawArraysInstanced(GLenum mode, GLint first, GLsizei count,
- GLsizei primcount)
-{
- vbo_exec_DrawArraysInstanced(mode, first, count, primcount);
-}
-
-
-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);
-}
-
-
-void GLAPIENTRY
-_mesa_DrawTransformFeedback(GLenum mode, GLuint name)
-{
- vbo_exec_DrawTransformFeedback(mode, name);
-}
projects / mesa.git / commitdiff