Kenneth Graunke <kenn...@whitecape.org> writes: > When an application is using PBOs, we attempt to use the BLT engine to > perform ReadPixels. If that fails due to some restrictions, it's useful > to raise a performance warning. > > In the non-PBO case, we always use a CPU mapping since getting the data > into client memory requires a CPU-side copy. This is a very common case, > so raising a performance warning is annoying. In particular, apitrace's > image dumping code hits this path, causing it to print hundreds of > thousands of performance warnings via ARB_debug_output. This tends to > obscure actual errors or other important messages.
Reviewed-by: Eric Anholt <e...@anholt.net>
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