From 10b2f2219306746f3a3af6043717f42ae32c31e3 Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Fri, 1 Nov 2013 05:24:23 +0100
Subject: Clarify Bug 692: Unbinding a VAO does _not_ imply unbinding of set
VBOs (spec doesn't mention it, and it does not show results w/ CPU sourced
rendering) ; Clean up GLBuffer*Tracker
+ * Note that VAO initialization does unbind the VBO .. since otherwise they are still bound
+ * and the CPU_SRC test will fail!<br/>
+ * The OpenGL spec does not mention that unbinding a VAO will also unbind the bound VBOs
+ * during their setup.<br/>
+ * Local tests here on NV and AMD proprietary driver resulted in <i>no ourput image</i>
+ * when not unbinding said VBOs before the CPU_SRC tests.<br/>
+ * Hence Bug 692 Comment 5 is invalid, i.e. <https://jogamp.org/bugzilla/show_bug.cgi?id=692#c5>,
+ * and we should throw an exception to give users a hint!
Leaving uncommented code in GLBufferStateTracker ..
+++
- Clean up GLBuffer*Tracker
- Use final
- Use static final keyNotFound value.
---
make/config/jogl/gl-impl-CustomJavaCode-gl4bc.java | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'make/config/jogl/gl-impl-CustomJavaCode-gl4bc.java')
diff --git a/make/config/jogl/gl-impl-CustomJavaCode-gl4bc.java b/make/config/jogl/gl-impl-CustomJavaCode-gl4bc.java
index 30047278b..e7389de10 100644
--- a/make/config/jogl/gl-impl-CustomJavaCode-gl4bc.java
+++ b/make/config/jogl/gl-impl-CustomJavaCode-gl4bc.java
@@ -314,7 +314,7 @@ private final boolean checkBufferObject(boolean extensionAvail,
return true;
}
if ( allowVAO ) {
- buffer = bufferStateTracker.getBoundBufferObject(GL2GL3.GL_VERTEX_ARRAY_BINDING, this);
+ buffer = bufferStateTracker.getBoundBufferObject(GL2ES3.GL_VERTEX_ARRAY_BINDING, this);
if( 0 != buffer && _context.getDefaultVAO() != buffer ) {
return true;
}
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