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authorPaul Berry <stereotype441@gmail.com>2012-01-03 13:59:13 -0800
committerPaul Berry <stereotype441@gmail.com>2012-01-05 13:27:12 -0800
commit4357f8b4dcaaef4843d4b34923383a2b045638b1 (patch)
tree87f8627171732a1af8b499e67d859f55ce73f4c8 /bin
parent456279bb33e09679de61d560aeafa74bb902fe43 (diff)
mesa: Avoid segfault when getting an unbound transform feedback buffer name.
Previously we were using gl_transform_feedback_object::Buffers[i]->Name to service an indexed get request for GL_TRANSFORM_FEEDBACK_BUFFER_BINDING. However, if no buffer has been bound, gl_transform_feedback_object::Buffers[i] is NULL, so this was causing a segfault. This patch switches to using gl_transform_feedback_object::BufferNames[i], which is equal to gl_transform_feedback_object::Buffers[i]->Name if gl_transform_feedback_object::Buffers[i] is not NULL, and 0 if it is NULL. Fixes piglit test "EXT_transform_feedback/get-buffer-state indexed_binding". Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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