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authorNeil Roberts <[email protected]>2014-03-07 18:05:44 +0000
committerKristian Høgsberg <[email protected]>2014-03-12 14:40:46 -0700
commit0c58c96e540c86bdac52e8c61823bf14f4cd1fa0 (patch)
treefbab567524bd64e0e4f257e1056d1daec3e51c05 /src/mesa/main/blend.c
parent87c66a4ff7d9f1849648080faf456d3b54c44d0a (diff)
Use the magic behaviour of GL_BACK in GLES 1 and 2 as well as 3
In GLES 3 it is not possible to select rendering to the front buffer and instead selecting GL_BACK has the magic interpretation that it is either the front buffer on single-buffered configs or the back buffer on double-buffered. GLES 1 and 2 have no way of selecting the draw buffer at all. In that case we were initialising the draw buffer to either GL_FRONT or GL_BACK depending on the context's config and then leaving it at that. When we switch to having configless contexts we ideally want Mesa to automatically switch between the front and back buffer whenever a double- or single-buffered surface is bound. To make this happen we can just allow the magic behaviour from GLES 3 in GLES 1 and 2 as well. It shouldn't matter what the internal value of the draw buffer is in GLES 1 and 2 because there is no way to query it from the external API. Reviewed-by: Kristian Høgsberg <[email protected]>
Diffstat (limited to 'src/mesa/main/blend.c')
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