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authorMarek Olšák <[email protected]>2013-06-12 02:18:09 +0200
committerMarek Olšák <[email protected]>2013-07-02 17:02:14 +0200
commit284d9549123d7a5417310d359c2c46a4317e47bb (patch)
tree21484d5d55b26feeb51d03a1a57d9811e68a0823 /src/glsl/link_varyings.h
parent030ca230e25192307336cb39f1ee414d0392b620 (diff)
glsl/linker: link shaders in the opposite order (from fragment to vertex)
This ensures that inter-shader outputs and inputs are properly eliminated across 3 or more shader stages. The behavior is unchanged with 2 or less shader stages. For example, elimination of unused FS inputs causes elimination of matching GS outputs, which causes elimination of the GS inputs that were needed for evaluation of the eliminated GS outputs, which causes elimination of matching VS outputs. An unused FS input is all that's needed to trigger this chain reaction. Reviewed-by: Ian Romanick <[email protected]>
Diffstat (limited to 'src/glsl/link_varyings.h')
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