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authorBrian Paul <brianp@vmware.com>2010-04-04 18:18:28 -0600
committerBrian Paul <brianp@vmware.com>2010-04-04 19:05:38 -0600
commitcf3193ad1cd75b847c5d626def701a4bb012d080 (patch)
tree1c60ddd6eaea6ad95e0d6a292ce3d6abb6d4475d /src/mesa
parent3258dfbbbda69b46003362e94e75129c277c7a61 (diff)
mesa: new validation functions for GL_ARB_draw_instanced
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/main/api_validate.c107
-rw-r--r--src/mesa/main/api_validate.h10
2 files changed, 116 insertions, 1 deletions
diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c
index 4fb7b5ad61..f6da86d296 100644
--- a/src/mesa/main/api_validate.c
+++ b/src/mesa/main/api_validate.c
@@ -175,7 +175,7 @@ _mesa_validate_DrawElements(GLcontext *ctx,
GLenum mode, GLsizei count, GLenum type,
const GLvoid *indices, GLint basevertex)
{
- ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
if (count <= 0) {
if (count < 0)
@@ -314,3 +314,108 @@ _mesa_validate_DrawArrays(GLcontext *ctx,
return GL_TRUE;
}
+
+
+GLboolean
+_mesa_validate_DrawArraysInstanced(GLcontext *ctx, GLenum mode, GLint first,
+ GLsizei count, GLsizei primcount)
+{
+ 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_POLYGON) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glDrawArraysInstanced(mode=0x%x)", mode);
+ return GL_FALSE;
+ }
+
+ if (primcount <= 0) {
+ if (primcount < 0)
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glDrawArraysInstanced(primcount=%d)", primcount);
+ 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(GLcontext *ctx,
+ GLenum mode, GLsizei count, GLenum type,
+ const GLvoid *indices, GLsizei primcount)
+{
+ 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_POLYGON) {
+ _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 (primcount <= 0) {
+ if (primcount < 0)
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glDrawElementsInstanced(primcount=%d)", primcount);
+ 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;
+}
diff --git a/src/mesa/main/api_validate.h b/src/mesa/main/api_validate.h
index 6064d15fe6..cd27d58aa7 100644
--- a/src/mesa/main/api_validate.h
+++ b/src/mesa/main/api_validate.h
@@ -52,4 +52,14 @@ _mesa_validate_DrawRangeElements(GLcontext *ctx, GLenum mode,
const GLvoid *indices, GLint basevertex);
+extern GLboolean
+_mesa_validate_DrawArraysInstanced(GLcontext *ctx, GLenum mode, GLint first,
+ GLsizei count, GLsizei primcount);
+
+extern GLboolean
+_mesa_validate_DrawElementsInstanced(GLcontext *ctx,
+ GLenum mode, GLsizei count, GLenum type,
+ const GLvoid *indices, GLsizei primcount);
+
+
#endif