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mesa: fix error handling for glPixelZoom

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According the man page, GL_INVALID_OPERATION should generated if
glPixelZoom is executed between the execution of glBegin and the
corresponding execution of glEnd.

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Yuanhan Liu 2011-09-19 15:03:03 +08:00 • committed by Brian Paul
parent 6a98802243
commit 7a9a8bbabd
1 changed files with 2 additions and 0 deletions
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2
src/mesa/main/pixel.c
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@ -52,6 +52,8 @@ _mesa_PixelZoom( GLfloat xfactor, GLfloat yfactor )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (ctx->Pixel.ZoomX == xfactor &&
ctx->Pixel.ZoomY == yfactor)
return;