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authorMarek Olšák <[email protected]>2013-06-12 13:23:48 +0200
committerMarek Olšák <[email protected]>2013-07-02 17:02:14 +0200
commitb3d8b4c0b423539f17c13713673cfeb6d66ff7ed (patch)
tree58ea816c6292ff40f5b820a1bdc2398b78708ebd /src/gallium/drivers/softpipe
parent3c555827c3e2fdb84ee4b4b8fd8296985cbb1fda (diff)
glsl/linker: eliminate unused and set-but-unused built-in varyings
This eliminates built-in varyings such as gl_Color, gl_SecondaryColor, gl_TexCoord, and gl_FogFragCoord if they are unused by the next stage or not written at all (e.g. gl_TexCoord elements). The gl_TexCoord array is broken down into separate vec4s if needed. v2: - use a switch statement in varying_info_visitor::visit(ir_variable*) - use snprintf - disable the optimization for GLES2 Reviewed-by: Ian Romanick <[email protected]>
Diffstat (limited to 'src/gallium/drivers/softpipe')
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