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diff -up cogl-1.14.0/cogl/winsys/cogl-winsys-glx.c.jx cogl-1.14.0/cogl/winsys/cogl-winsys-glx.c
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--- cogl-1.14.0/cogl/winsys/cogl-winsys-glx.c.jx 2013-02-21 10:41:08.000000000 -0500
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+++ cogl-1.14.0/cogl/winsys/cogl-winsys-glx.c 2014-01-29 16:16:00.501264635 -0500
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@@ -698,30 +698,18 @@ update_winsys_features (CoglContext *con
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COGL_FLAGS_SET (context->features,
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COGL_FEATURE_ID_ONSCREEN_MULTIPLE, TRUE);
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- if (glx_renderer->glXCopySubBuffer || context->glBlitFramebuffer)
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+ /* our swrast has working CopySubBuffer, but not BlitFramebuffer */
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+ if (context->gpu.architecture == COGL_GPU_INFO_ARCHITECTURE_LLVMPIPE ||
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+ context->gpu.architecture == COGL_GPU_INFO_ARCHITECTURE_SOFTPIPE ||
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+ context->gpu.architecture == COGL_GPU_INFO_ARCHITECTURE_SWRAST)
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{
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- CoglGpuInfoArchitecture arch;
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+ context->glBlitFramebuffer = NULL;
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+ }
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- /* XXX: ONGOING BUG:
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- * (Don't change the line above since we use this to grep for
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- * un-resolved bug workarounds as part of the release process.)
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- *
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- * "The "drisw" binding in Mesa for loading sofware renderers is
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- * broken, and neither glBlitFramebuffer nor glXCopySubBuffer
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- * work correctly."
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- * - ajax
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- * - https://bugzilla.gnome.org/show_bug.cgi?id=674208
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- *
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- * This is broken in software Mesa at least as of 7.10
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- */
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- arch = context->gpu.architecture;
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- if (arch != COGL_GPU_INFO_ARCHITECTURE_LLVMPIPE &&
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- arch != COGL_GPU_INFO_ARCHITECTURE_SOFTPIPE &&
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- arch != COGL_GPU_INFO_ARCHITECTURE_SWRAST)
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- {
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- COGL_FLAGS_SET (context->winsys_features,
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- COGL_WINSYS_FEATURE_SWAP_REGION, TRUE);
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- }
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+ if (glx_renderer->glXCopySubBuffer || context->glBlitFramebuffer)
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+ {
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+ COGL_FLAGS_SET (context->winsys_features,
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+ COGL_WINSYS_FEATURE_SWAP_REGION, TRUE);
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}
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/* Note: glXCopySubBuffer and glBlitFramebuffer won't be throttled
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