commit 146411a83f534c928c790ef1e7d3ddb576ee33f7
author Alexis Hetu <sugoi@google.com> Tue Jun 23 11:33:20 2015 -0400
committer Alexis Hétu <sugoi@google.com> Thu Jun 25 15:47:13 2015 +0000
tree cda059829ad10cc51b7d02578bb05b1058235218
parent 395f00bc269352689883161ab951b7f03c4d7d84

Added proper transform feedback checks to glDrawRangeElements

It is illegal to start a new draw operation while a transform
feedback is active.

Change-Id: I5ebb01889ce5154162a51f5e6cfbc8431554c879
Reviewed-on: https://swiftshader-review.googlesource.com/3549
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

src/OpenGL/libGLESv2/libGLESv3.cpp

diff --git a/src/OpenGL/libGLESv2/libGLESv3.cpp b/src/OpenGL/libGLESv2/libGLESv3.cpp
index 6091210..ef9eeff 100644
--- a/src/OpenGL/libGLESv2/libGLESv3.cpp
+++ b/src/OpenGL/libGLESv2/libGLESv3.cpp
@@ -549,6 +549,12 @@
 

 	if(context)

 	{

+		es2::TransformFeedback* transformFeedback = context->getTransformFeedback();

+		if(transformFeedback && transformFeedback->isActive() && !transformFeedback->isPaused())

+		{

+			return error(GL_INVALID_OPERATION);

+		}

+

 		context->drawElements(mode, start, end, count, type, indices);

 	}

 }