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generate GL_INVALID_OPERATION in glAccum if read/draw buffers aren't the same
author
Brian Paul
<brian.paul@tungstengraphics.com>
Tue, 27 Sep 2005 15:52:27 +0000
(15:52 +0000)
committer
Brian Paul
<brian.paul@tungstengraphics.com>
Tue, 27 Sep 2005 15:52:27 +0000
(15:52 +0000)
src/mesa/main/accum.c
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diff --git
a/src/mesa/main/accum.c
b/src/mesa/main/accum.c
index
c1346ba
..
9a32481
100644
(file)
--- a/
src/mesa/main/accum.c
+++ b/
src/mesa/main/accum.c
@@
-1,6
+1,6
@@
/*
* Mesa 3-D graphics library
- * Version: 6.
3
+ * Version: 6.
5
*
* Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
*
@@
-76,6
+76,13
@@
_mesa_Accum( GLenum op, GLfloat value )
return;
}
+ if (ctx->DrawBuffer != ctx->ReadBuffer) {
+ /* See GLX_SGI_make_current_read or WGL_ARB_make_current_read */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glAccum(different read/draw buffers)");
+ return;
+ }
+
if (ctx->NewState)
_mesa_update_state( ctx );