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glx: fix regression with copy sub buffer disappearing 

So copy sub buffer isn't a core extensions it's a driver extension
which means we are using totally the wrong interface to query for it
here, which means bad things happen when you roll out this code,
for instance MESA_copy_sub_buffer stops working.

This is just the hack I'm sticking in Fedora to avoid the regression
for now, but hopefully will inspire us.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2015-09-23 11:19:00 +10:00 committed by Adam Jackson
parent 5e9457c41c
commit 6da3f5d04f
1 changed files with 3 additions and 2 deletions
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5
glx/glxdriswrast.c
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@ -396,6 +396,9 @@ initializeExtensions(__GLXDRIscreen * screen)
const __DRIextension **extensions;
int i;
__glXEnableExtension(screen->glx_enable_bits, "GLX_MESA_copy_sub_buffer");
LogMessage(X_INFO, "AIGLX: enabled GLX_MESA_copy_sub_buffer\n");
if (screen->swrast->base.version >= 3) {
__glXEnableExtension(screen->glx_enable_bits,
"GLX_ARB_create_context");
@ -416,8 +419,6 @@ initializeExtensions(__GLXDRIscreen * screen)
if (strcmp(extensions[i]->name, __DRI_COPY_SUB_BUFFER) == 0) {
screen->copySubBuffer =
(const __DRIcopySubBufferExtension *) extensions[i];
__glXEnableExtension(screen->glx_enable_bits,
"GLX_MESA_copy_sub_buffer");
}
if (strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0) {