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authorPaul Berry <[email protected]>2013-04-06 10:50:46 -0700
committerPaul Berry <[email protected]>2013-04-09 10:25:57 -0700
commit32d2b2aa2c784d9f37de21e0ed973e5ee1edb658 (patch)
tree724ad9ddc6c184620eeb6251ff01cfd28e4cc378 /scons/source_list.py
parent8687c40c2dde6cd64f67396333765f6aa9c82f6a (diff)
glsl/linker: Adapt flat varying handling in preparation for geometry shaders.
When a varying is consumed by transform feedback, but is not used by the fragment shader, assign_varying_locations() sets its interpolation type to "flat" in order to ensure that lower_packed_varyings never has to deal with non-flat integral varyings (the GLSL spec doesn't require integral vertex outputs to be flat if they aren't consumed by the fragment shader). A similar situation will arise when geometry shader support is added, since the GLSL spec only requires integral vertex shader outputs to be flat when they are consumed by the fragment shader. This patch modifies the linker to handle this situation too. Reviewed-by: Jordan Justen <[email protected]>
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