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authormarha <marha@users.sourceforge.net>2011-06-03 08:18:04 +0200
committermarha <marha@users.sourceforge.net>2011-06-03 08:18:04 +0200
commitcda19b1d226d565f1ca4327aeae827c621b3dfd6 (patch)
tree8a511d718c888b17c257a905607068613359f9a6 /mesalib/src/mesa/main/api_validate.c
parent4d7ec99788d8a1d56ff4bccea279ae8186b18cdc (diff)
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xserver xkeyboard-config mesa git update 3 Jun 2011
Diffstat (limited to 'mesalib/src/mesa/main/api_validate.c')
-rw-r--r--mesalib/src/mesa/main/api_validate.c909
1 files changed, 455 insertions, 454 deletions
diff --git a/mesalib/src/mesa/main/api_validate.c b/mesalib/src/mesa/main/api_validate.c
index 5916af9f7..2981d4229 100644
--- a/mesalib/src/mesa/main/api_validate.c
+++ b/mesalib/src/mesa/main/api_validate.c
@@ -1,454 +1,455 @@
-/*
- * Mesa 3-D graphics library
- * Version: 7.1
- *
- * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include "glheader.h"
-#include "api_validate.h"
-#include "bufferobj.h"
-#include "context.h"
-#include "imports.h"
-#include "mfeatures.h"
-#include "mtypes.h"
-#include "vbo/vbo.h"
-
-
-/**
- * \return number of bytes in array [count] of type.
- */
-static GLsizei
-index_bytes(GLenum type, GLsizei count)
-{
- if (type == GL_UNSIGNED_INT) {
- return count * sizeof(GLuint);
- }
- else if (type == GL_UNSIGNED_BYTE) {
- return count * sizeof(GLubyte);
- }
- else {
- ASSERT(type == GL_UNSIGNED_SHORT);
- return count * sizeof(GLushort);
- }
-}
-
-
-/**
- * Find the max index in the given element/index buffer
- */
-GLuint
-_mesa_max_buffer_index(struct gl_context *ctx, GLuint count, GLenum type,
- const void *indices,
- struct gl_buffer_object *elementBuf)
-{
- const GLubyte *map = NULL;
- GLuint max = 0;
- GLuint i;
-
- if (_mesa_is_bufferobj(elementBuf)) {
- /* elements are in a user-defined buffer object. need to map it */
- map = ctx->Driver.MapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER,
- GL_READ_ONLY, elementBuf);
- /* Actual address is the sum of pointers */
- indices = (const GLvoid *) ADD_POINTERS(map, (const GLubyte *) indices);
- }
-
- if (type == GL_UNSIGNED_INT) {
- for (i = 0; i < count; i++)
- if (((GLuint *) indices)[i] > max)
- max = ((GLuint *) indices)[i];
- }
- else if (type == GL_UNSIGNED_SHORT) {
- for (i = 0; i < count; i++)
- if (((GLushort *) indices)[i] > max)
- max = ((GLushort *) indices)[i];
- }
- else {
- ASSERT(type == GL_UNSIGNED_BYTE);
- for (i = 0; i < count; i++)
- if (((GLubyte *) indices)[i] > max)
- max = ((GLubyte *) indices)[i];
- }
-
- if (map) {
- ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, elementBuf);
- }
-
- return max;
-}
-
-
-/**
- * Check if OK to draw arrays/elements.
- */
-static GLboolean
-check_valid_to_render(struct gl_context *ctx, const char *function)
-{
- if (!_mesa_valid_to_render(ctx, function)) {
- return GL_FALSE;
- }
-
- switch (ctx->API) {
-#if FEATURE_es2_glsl
- case API_OPENGLES2:
- /* For ES2, we can draw if any vertex array is enabled (and we
- * should always have a vertex program/shader). */
- if (ctx->Array.ArrayObj->_Enabled == 0x0 || !ctx->VertexProgram._Current)
- return GL_FALSE;
- break;
-#endif
-
-#if FEATURE_ES1
- case API_OPENGLES:
- /* For OpenGL ES, only draw if we have vertex positions
- */
- if (!ctx->Array.ArrayObj->Vertex.Enabled)
- return GL_FALSE;
- break;
-#endif
-
-#if FEATURE_GL
- case API_OPENGL:
- {
- const struct gl_shader_program *vsProg =
- ctx->Shader.CurrentVertexProgram;
- GLboolean haveVertexShader = (vsProg && vsProg->LinkStatus);
- GLboolean haveVertexProgram = ctx->VertexProgram._Enabled;
- if (haveVertexShader || haveVertexProgram) {
- /* Draw regardless of whether or not we have any vertex arrays.
- * (Ex: could draw a point using a constant vertex pos)
- */
- return GL_TRUE;
- }
- else {
- /* Draw if we have vertex positions (GL_VERTEX_ARRAY or generic
- * array [0]).
- */
- return (ctx->Array.ArrayObj->Vertex.Enabled ||
- ctx->Array.ArrayObj->VertexAttrib[0].Enabled);
- }
- }
- break;
-#endif
-
- default:
- ASSERT_NO_FEATURE();
- }
-
- return GL_TRUE;
-}
-
-
-/**
- * Do bounds checking on array element indexes. Check that the vertices
- * pointed to by the indices don't lie outside buffer object bounds.
- * \return GL_TRUE if OK, GL_FALSE if any indexed vertex goes is out of bounds
- */
-static GLboolean
-check_index_bounds(struct gl_context *ctx, GLsizei count, GLenum type,
- const GLvoid *indices, GLint basevertex)
-{
- struct _mesa_prim prim;
- struct _mesa_index_buffer ib;
- GLuint min, max;
-
- /* Only the X Server needs to do this -- otherwise, accessing outside
- * array/BO bounds allows application termination.
- */
- if (!ctx->Const.CheckArrayBounds)
- return GL_TRUE;
-
- memset(&prim, 0, sizeof(prim));
- prim.count = count;
-
- memset(&ib, 0, sizeof(ib));
- ib.type = type;
- ib.ptr = indices;
- ib.obj = ctx->Array.ElementArrayBufferObj;
-
- vbo_get_minmax_index(ctx, &prim, &ib, &min, &max);
-
- if ((int)(min + basevertex) < 0 ||
- max + basevertex > ctx->Array.ArrayObj->_MaxElement) {
- /* the max element is out of bounds of one or more enabled arrays */
- _mesa_warning(ctx, "glDrawElements() index=%u is out of bounds (max=%u)",
- max, ctx->Array.ArrayObj->_MaxElement);
- return GL_FALSE;
- }
-
- return GL_TRUE;
-}
-
-
-/**
- * Error checking for glDrawElements(). Includes parameter checking
- * and VBO bounds checking.
- * \return GL_TRUE if OK to render, GL_FALSE if error found
- */
-GLboolean
-_mesa_validate_DrawElements(struct gl_context *ctx,
- GLenum mode, GLsizei count, GLenum type,
- const GLvoid *indices, GLint basevertex)
-{
- ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
-
- if (count <= 0) {
- if (count < 0)
- _mesa_error(ctx, GL_INVALID_VALUE, "glDrawElements(count)" );
- return GL_FALSE;
- }
-
- if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(mode)" );
- return GL_FALSE;
- }
-
- if (type != GL_UNSIGNED_INT &&
- type != GL_UNSIGNED_BYTE &&
- type != GL_UNSIGNED_SHORT)
- {
- _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)" );
- return GL_FALSE;
- }
-
- if (!check_valid_to_render(ctx, "glDrawElements"))
- return GL_FALSE;
-
- /* Vertex buffer object tests */
- if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) {
- /* use indices in the buffer object */
- /* make sure count doesn't go outside buffer bounds */
- if (index_bytes(type, count) > ctx->Array.ElementArrayBufferObj->Size) {
- _mesa_warning(ctx, "glDrawElements index out of buffer bounds");
- return GL_FALSE;
- }
- }
- else {
- /* not using a VBO */
- if (!indices)
- return GL_FALSE;
- }
-
- if (!check_index_bounds(ctx, count, type, indices, basevertex))
- return GL_FALSE;
-
- return GL_TRUE;
-}
-
-
-/**
- * Error checking for glDrawRangeElements(). Includes parameter checking
- * and VBO bounds checking.
- * \return GL_TRUE if OK to render, GL_FALSE if error found
- */
-GLboolean
-_mesa_validate_DrawRangeElements(struct gl_context *ctx, GLenum mode,
- GLuint start, GLuint end,
- GLsizei count, GLenum type,
- const GLvoid *indices, GLint basevertex)
-{
- ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
-
- if (count <= 0) {
- if (count < 0)
- _mesa_error(ctx, GL_INVALID_VALUE, "glDrawRangeElements(count)" );
- return GL_FALSE;
- }
-
- if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)" );
- return GL_FALSE;
- }
-
- if (end < start) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glDrawRangeElements(end<start)");
- return GL_FALSE;
- }
-
- if (type != GL_UNSIGNED_INT &&
- type != GL_UNSIGNED_BYTE &&
- type != GL_UNSIGNED_SHORT) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(type)" );
- return GL_FALSE;
- }
-
- if (!check_valid_to_render(ctx, "glDrawRangeElements"))
- return GL_FALSE;
-
- /* Vertex buffer object tests */
- if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) {
- /* use indices in the buffer object */
- /* make sure count doesn't go outside buffer bounds */
- if (index_bytes(type, count) > ctx->Array.ElementArrayBufferObj->Size) {
- _mesa_warning(ctx, "glDrawRangeElements index out of buffer bounds");
- return GL_FALSE;
- }
- }
- else {
- /* not using a VBO */
- if (!indices)
- return GL_FALSE;
- }
-
- if (!check_index_bounds(ctx, count, type, indices, basevertex))
- return GL_FALSE;
-
- return GL_TRUE;
-}
-
-
-/**
- * Called from the tnl module to error check the function parameters and
- * verify that we really can draw something.
- * \return GL_TRUE if OK to render, GL_FALSE if error found
- */
-GLboolean
-_mesa_validate_DrawArrays(struct gl_context *ctx,
- GLenum mode, GLint start, GLsizei count)
-{
- ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
-
- if (count <= 0) {
- if (count < 0)
- _mesa_error(ctx, GL_INVALID_VALUE, "glDrawArrays(count)" );
- return GL_FALSE;
- }
-
- if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)" );
- return GL_FALSE;
- }
-
- if (!check_valid_to_render(ctx, "glDrawArrays"))
- return GL_FALSE;
-
- if (ctx->Const.CheckArrayBounds) {
- if (start + count > (GLint) ctx->Array.ArrayObj->_MaxElement)
- return GL_FALSE;
- }
-
- return GL_TRUE;
-}
-
-
-GLboolean
-_mesa_validate_DrawArraysInstanced(struct gl_context *ctx, GLenum mode, GLint first,
- GLsizei count, GLsizei numInstances)
-{
- ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
-
- if (count <= 0) {
- if (count < 0)
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glDrawArraysInstanced(count=%d)", count);
- return GL_FALSE;
- }
-
- if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) {
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glDrawArraysInstanced(mode=0x%x)", mode);
- return GL_FALSE;
- }
-
- if (numInstances <= 0) {
- if (numInstances < 0)
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glDrawArraysInstanced(numInstances=%d)", numInstances);
- return GL_FALSE;
- }
-
- if (!check_valid_to_render(ctx, "glDrawArraysInstanced(invalid to render)"))
- return GL_FALSE;
-
- if (ctx->CompileFlag) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glDrawArraysInstanced(display list");
- return GL_FALSE;
- }
-
- if (ctx->Const.CheckArrayBounds) {
- if (first + count > (GLint) ctx->Array.ArrayObj->_MaxElement)
- return GL_FALSE;
- }
-
- return GL_TRUE;
-}
-
-
-GLboolean
-_mesa_validate_DrawElementsInstanced(struct gl_context *ctx,
- GLenum mode, GLsizei count, GLenum type,
- const GLvoid *indices, GLsizei numInstances)
-{
- ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
-
- if (count <= 0) {
- if (count < 0)
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glDrawElementsInstanced(count=%d)", count);
- return GL_FALSE;
- }
-
- if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) {
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glDrawElementsInstanced(mode = 0x%x)", mode);
- return GL_FALSE;
- }
-
- if (type != GL_UNSIGNED_INT &&
- type != GL_UNSIGNED_BYTE &&
- type != GL_UNSIGNED_SHORT) {
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glDrawElementsInstanced(type=0x%x)", type);
- return GL_FALSE;
- }
-
- if (numInstances <= 0) {
- if (numInstances < 0)
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glDrawElementsInstanced(numInstances=%d)", numInstances);
- return GL_FALSE;
- }
-
- if (!check_valid_to_render(ctx, "glDrawElementsInstanced"))
- return GL_FALSE;
-
- /* Vertex buffer object tests */
- if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) {
- /* use indices in the buffer object */
- /* make sure count doesn't go outside buffer bounds */
- if (index_bytes(type, count) > ctx->Array.ElementArrayBufferObj->Size) {
- _mesa_warning(ctx,
- "glDrawElementsInstanced index out of buffer bounds");
- return GL_FALSE;
- }
- }
- else {
- /* not using a VBO */
- if (!indices)
- return GL_FALSE;
- }
-
- if (!check_index_bounds(ctx, count, type, indices, 0))
- return GL_FALSE;
-
- return GL_TRUE;
-}
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "glheader.h"
+#include "api_validate.h"
+#include "bufferobj.h"
+#include "context.h"
+#include "imports.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+#include "vbo/vbo.h"
+
+
+/**
+ * \return number of bytes in array [count] of type.
+ */
+static GLsizei
+index_bytes(GLenum type, GLsizei count)
+{
+ if (type == GL_UNSIGNED_INT) {
+ return count * sizeof(GLuint);
+ }
+ else if (type == GL_UNSIGNED_BYTE) {
+ return count * sizeof(GLubyte);
+ }
+ else {
+ ASSERT(type == GL_UNSIGNED_SHORT);
+ return count * sizeof(GLushort);
+ }
+}
+
+
+/**
+ * Find the max index in the given element/index buffer
+ */
+GLuint
+_mesa_max_buffer_index(struct gl_context *ctx, GLuint count, GLenum type,
+ const void *indices,
+ struct gl_buffer_object *elementBuf)
+{
+ const GLubyte *map = NULL;
+ GLuint max = 0;
+ GLuint i;
+
+ if (_mesa_is_bufferobj(elementBuf)) {
+ /* elements are in a user-defined buffer object. need to map it */
+ map = ctx->Driver.MapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER,
+ GL_READ_ONLY, elementBuf);
+ /* Actual address is the sum of pointers */
+ indices = (const GLvoid *) ADD_POINTERS(map, (const GLubyte *) indices);
+ }
+
+ if (type == GL_UNSIGNED_INT) {
+ for (i = 0; i < count; i++)
+ if (((GLuint *) indices)[i] > max)
+ max = ((GLuint *) indices)[i];
+ }
+ else if (type == GL_UNSIGNED_SHORT) {
+ for (i = 0; i < count; i++)
+ if (((GLushort *) indices)[i] > max)
+ max = ((GLushort *) indices)[i];
+ }
+ else {
+ ASSERT(type == GL_UNSIGNED_BYTE);
+ for (i = 0; i < count; i++)
+ if (((GLubyte *) indices)[i] > max)
+ max = ((GLubyte *) indices)[i];
+ }
+
+ if (map) {
+ ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, elementBuf);
+ }
+
+ return max;
+}
+
+
+/**
+ * Check if OK to draw arrays/elements.
+ */
+static GLboolean
+check_valid_to_render(struct gl_context *ctx, const char *function)
+{
+ if (!_mesa_valid_to_render(ctx, function)) {
+ return GL_FALSE;
+ }
+
+ switch (ctx->API) {
+#if FEATURE_es2_glsl
+ case API_OPENGLES2:
+ /* For ES2, we can draw if any vertex array is enabled (and we
+ * should always have a vertex program/shader). */
+ if (ctx->Array.ArrayObj->_Enabled == 0x0 || !ctx->VertexProgram._Current)
+ return GL_FALSE;
+ break;
+#endif
+
+#if FEATURE_ES1
+ case API_OPENGLES:
+ /* For OpenGL ES, only draw if we have vertex positions
+ */
+ if (!ctx->Array.ArrayObj->Vertex.Enabled)
+ return GL_FALSE;
+ break;
+#endif
+
+#if FEATURE_GL
+ case API_OPENGL:
+ {
+ const struct gl_shader_program *vsProg =
+ ctx->Shader.CurrentVertexProgram;
+ GLboolean haveVertexShader = (vsProg && vsProg->LinkStatus);
+ GLboolean haveVertexProgram = ctx->VertexProgram._Enabled;
+ if (haveVertexShader || haveVertexProgram) {
+ /* Draw regardless of whether or not we have any vertex arrays.
+ * (Ex: could draw a point using a constant vertex pos)
+ */
+ return GL_TRUE;
+ }
+ else {
+ /* Draw if we have vertex positions (GL_VERTEX_ARRAY or generic
+ * array [0]).
+ */
+ return (ctx->Array.ArrayObj->Vertex.Enabled ||
+ ctx->Array.ArrayObj->VertexAttrib[0].Enabled);
+ }
+ }
+ break;
+#endif
+
+ default:
+ ASSERT_NO_FEATURE();
+ }
+
+ return GL_TRUE;
+}
+
+
+/**
+ * Do bounds checking on array element indexes. Check that the vertices
+ * pointed to by the indices don't lie outside buffer object bounds.
+ * \return GL_TRUE if OK, GL_FALSE if any indexed vertex goes is out of bounds
+ */
+static GLboolean
+check_index_bounds(struct gl_context *ctx, GLsizei count, GLenum type,
+ const GLvoid *indices, GLint basevertex)
+{
+ struct _mesa_prim prim;
+ struct _mesa_index_buffer ib;
+ GLuint min, max;
+
+ /* Only the X Server needs to do this -- otherwise, accessing outside
+ * array/BO bounds allows application termination.
+ */
+ if (!ctx->Const.CheckArrayBounds)
+ return GL_TRUE;
+
+ memset(&prim, 0, sizeof(prim));
+ prim.count = count;
+
+ memset(&ib, 0, sizeof(ib));
+ ib.type = type;
+ ib.ptr = indices;
+ ib.obj = ctx->Array.ElementArrayBufferObj;
+
+ vbo_get_minmax_index(ctx, &prim, &ib, &min, &max);
+
+ if ((int)(min + basevertex) < 0 ||
+ max + basevertex > ctx->Array.ArrayObj->_MaxElement) {
+ /* the max element is out of bounds of one or more enabled arrays */
+ _mesa_warning(ctx, "glDrawElements() index=%u is out of bounds (max=%u)",
+ max, ctx->Array.ArrayObj->_MaxElement);
+ return GL_FALSE;
+ }
+
+ return GL_TRUE;
+}
+
+
+/**
+ * Error checking for glDrawElements(). Includes parameter checking
+ * and VBO bounds checking.
+ * \return GL_TRUE if OK to render, GL_FALSE if error found
+ */
+GLboolean
+_mesa_validate_DrawElements(struct gl_context *ctx,
+ GLenum mode, GLsizei count, GLenum type,
+ const GLvoid *indices, GLint basevertex)
+{
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+
+ if (count <= 0) {
+ if (count < 0)
+ _mesa_error(ctx, GL_INVALID_VALUE, "glDrawElements(count)" );
+ return GL_FALSE;
+ }
+
+ if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(mode)" );
+ return GL_FALSE;
+ }
+
+ if (type != GL_UNSIGNED_INT &&
+ type != GL_UNSIGNED_BYTE &&
+ type != GL_UNSIGNED_SHORT)
+ {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)" );
+ return GL_FALSE;
+ }
+
+ if (!check_valid_to_render(ctx, "glDrawElements"))
+ return GL_FALSE;
+
+ /* Vertex buffer object tests */
+ if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) {
+ /* use indices in the buffer object */
+ /* make sure count doesn't go outside buffer bounds */
+ if (index_bytes(type, count) > ctx->Array.ElementArrayBufferObj->Size) {
+ _mesa_warning(ctx, "glDrawElements index out of buffer bounds");
+ return GL_FALSE;
+ }
+ }
+ else {
+ /* not using a VBO */
+ if (!indices)
+ return GL_FALSE;
+ }
+
+ if (!check_index_bounds(ctx, count, type, indices, basevertex))
+ return GL_FALSE;
+
+ return GL_TRUE;
+}
+
+
+/**
+ * Error checking for glDrawRangeElements(). Includes parameter checking
+ * and VBO bounds checking.
+ * \return GL_TRUE if OK to render, GL_FALSE if error found
+ */
+GLboolean
+_mesa_validate_DrawRangeElements(struct gl_context *ctx, GLenum mode,
+ GLuint start, GLuint end,
+ GLsizei count, GLenum type,
+ const GLvoid *indices, GLint basevertex)
+{
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+
+ if (count <= 0) {
+ if (count < 0)
+ _mesa_error(ctx, GL_INVALID_VALUE, "glDrawRangeElements(count)" );
+ return GL_FALSE;
+ }
+
+ if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)" );
+ return GL_FALSE;
+ }
+
+ if (end < start) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glDrawRangeElements(end<start)");
+ return GL_FALSE;
+ }
+
+ if (type != GL_UNSIGNED_INT &&
+ type != GL_UNSIGNED_BYTE &&
+ type != GL_UNSIGNED_SHORT) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(type)" );
+ return GL_FALSE;
+ }
+
+ if (!check_valid_to_render(ctx, "glDrawRangeElements"))
+ return GL_FALSE;
+
+ /* Vertex buffer object tests */
+ if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) {
+ /* use indices in the buffer object */
+ /* make sure count doesn't go outside buffer bounds */
+ if (index_bytes(type, count) > ctx->Array.ElementArrayBufferObj->Size) {
+ _mesa_warning(ctx, "glDrawRangeElements index out of buffer bounds");
+ return GL_FALSE;
+ }
+ }
+ else {
+ /* not using a VBO */
+ if (!indices)
+ return GL_FALSE;
+ }
+
+ if (!check_index_bounds(ctx, count, type, indices, basevertex))
+ return GL_FALSE;
+
+ return GL_TRUE;
+}
+
+
+/**
+ * Called from the tnl module to error check the function parameters and
+ * verify that we really can draw something.
+ * \return GL_TRUE if OK to render, GL_FALSE if error found
+ */
+GLboolean
+_mesa_validate_DrawArrays(struct gl_context *ctx,
+ GLenum mode, GLint start, GLsizei count)
+{
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+
+ if (count <= 0) {
+ if (count < 0)
+ _mesa_error(ctx, GL_INVALID_VALUE, "glDrawArrays(count)" );
+ return GL_FALSE;
+ }
+
+ if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)" );
+ return GL_FALSE;
+ }
+
+ if (!check_valid_to_render(ctx, "glDrawArrays"))
+ return GL_FALSE;
+
+ if (ctx->Const.CheckArrayBounds) {
+ if (start + count > (GLint) ctx->Array.ArrayObj->_MaxElement)
+ return GL_FALSE;
+ }
+
+ return GL_TRUE;
+}
+
+
+GLboolean
+_mesa_validate_DrawArraysInstanced(struct gl_context *ctx, GLenum mode, GLint first,
+ GLsizei count, GLsizei numInstances)
+{
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+
+ if (count <= 0) {
+ if (count < 0)
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glDrawArraysInstanced(count=%d)", count);
+ return GL_FALSE;
+ }
+
+ if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glDrawArraysInstanced(mode=0x%x)", mode);
+ return GL_FALSE;
+ }
+
+ if (numInstances <= 0) {
+ if (numInstances < 0)
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glDrawArraysInstanced(numInstances=%d)", numInstances);
+ return GL_FALSE;
+ }
+
+ if (!check_valid_to_render(ctx, "glDrawArraysInstanced(invalid to render)"))
+ return GL_FALSE;
+
+ if (ctx->CompileFlag) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawArraysInstanced(display list");
+ return GL_FALSE;
+ }
+
+ if (ctx->Const.CheckArrayBounds) {
+ if (first + count > (GLint) ctx->Array.ArrayObj->_MaxElement)
+ return GL_FALSE;
+ }
+
+ return GL_TRUE;
+}
+
+
+GLboolean
+_mesa_validate_DrawElementsInstanced(struct gl_context *ctx,
+ GLenum mode, GLsizei count, GLenum type,
+ const GLvoid *indices, GLsizei numInstances,
+ GLint basevertex)
+{
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+
+ if (count <= 0) {
+ if (count < 0)
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glDrawElementsInstanced(count=%d)", count);
+ return GL_FALSE;
+ }
+
+ if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glDrawElementsInstanced(mode = 0x%x)", mode);
+ return GL_FALSE;
+ }
+
+ if (type != GL_UNSIGNED_INT &&
+ type != GL_UNSIGNED_BYTE &&
+ type != GL_UNSIGNED_SHORT) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glDrawElementsInstanced(type=0x%x)", type);
+ return GL_FALSE;
+ }
+
+ if (numInstances <= 0) {
+ if (numInstances < 0)
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glDrawElementsInstanced(numInstances=%d)", numInstances);
+ return GL_FALSE;
+ }
+
+ if (!check_valid_to_render(ctx, "glDrawElementsInstanced"))
+ return GL_FALSE;
+
+ /* Vertex buffer object tests */
+ if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) {
+ /* use indices in the buffer object */
+ /* make sure count doesn't go outside buffer bounds */
+ if (index_bytes(type, count) > ctx->Array.ElementArrayBufferObj->Size) {
+ _mesa_warning(ctx,
+ "glDrawElementsInstanced index out of buffer bounds");
+ return GL_FALSE;
+ }
+ }
+ else {
+ /* not using a VBO */
+ if (!indices)
+ return GL_FALSE;
+ }
+
+ if (!check_index_bounds(ctx, count, type, indices, basevertex))
+ return GL_FALSE;
+
+ return GL_TRUE;
+}