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authorIan Romanick <[email protected]>2010-11-18 11:05:32 -0800
committerIan Romanick <[email protected]>2010-11-19 15:00:25 -0800
commitf2616e56de8a48360cae8f269727b58490555f4d (patch)
tree56462288844e777618344e9f7830b5c3eb1f1f02 /src/glsl/glsl_symbol_table.cpp
parent04ffbe1ac6a82ac5cce843afa15ffdfa4ef78103 (diff)
glsl: Add ir_unop_sin_reduced and ir_unop_cos_reduced
The operate just like ir_unop_sin and ir_unop_cos except that they expect their inputs to be limited to the range [-pi, pi]. Several GPUs require this limited range for their sine and cosine instructions, so having these as operations (along with a to-be-written lowering pass) helps this architectures. These new operations also matche the semantics of the GL_ARB_fragment_program SCS instruction. Having these as operations helps in generating GLSL IR directly from assembly fragment programs.
Diffstat (limited to 'src/glsl/glsl_symbol_table.cpp')
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