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authorPaul Berry <[email protected]>2011-12-21 11:03:11 -0800
committerPaul Berry <[email protected]>2011-12-23 09:43:18 -0800
commit87c7e5fb876bf280d8693ef3b0f4351b1d2eec3b (patch)
tree01eb8cd568607466ec00aedd47128ca5c15f2d0a /src/mesa/main
parent08ce48733d9441e1daa779027dbea1ce9964cc77 (diff)
mesa: Disable certain error checks when transform feedback is paused
When transform feedback is paused, it is legal to change programs or to perform drawing operations using a drawing mode that doesn't match the transform feedback mode. Reviewed-by: Brian Paul <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
Diffstat (limited to 'src/mesa/main')
-rw-r--r--src/mesa/main/shaderapi.c5
-rw-r--r--src/mesa/main/transformfeedback.c3
2 files changed, 5 insertions, 3 deletions
diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c
index c4d01abc705..b71b44b705d 100644
--- a/src/mesa/main/shaderapi.c
+++ b/src/mesa/main/shaderapi.c
@@ -1436,7 +1436,7 @@ _mesa_UseProgramObjectARB(GLhandleARB program)
ASSERT_OUTSIDE_BEGIN_END(ctx);
- if (obj->Active) {
+ if (obj->Active && !obj->Paused) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glUseProgram(transform feedback active)");
return;
@@ -1638,7 +1638,8 @@ _mesa_UseShaderProgramEXT(GLenum type, GLuint program)
return;
}
- if (ctx->TransformFeedback.CurrentObject->Active) {
+ if (ctx->TransformFeedback.CurrentObject->Active &&
+ !ctx->TransformFeedback.CurrentObject->Paused) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glUseShaderProgramEXT(transform feedback is active)");
return;
diff --git a/src/mesa/main/transformfeedback.c b/src/mesa/main/transformfeedback.c
index fea711aa6e0..be0d0ff19a4 100644
--- a/src/mesa/main/transformfeedback.c
+++ b/src/mesa/main/transformfeedback.c
@@ -98,7 +98,8 @@ reference_transform_feedback_object(struct gl_transform_feedback_object **ptr,
GLboolean
_mesa_validate_primitive_mode(struct gl_context *ctx, GLenum mode)
{
- if (ctx->TransformFeedback.CurrentObject->Active) {
+ if (ctx->TransformFeedback.CurrentObject->Active &&
+ !ctx->TransformFeedback.CurrentObject->Paused) {
switch (mode) {
case GL_POINTS:
return ctx->TransformFeedback.Mode == GL_POINTS;