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| author | Marek Olšák <maraeo@gmail.com> | 2013-06-12 13:23:48 +0200 |
|---|---|---|
| committer | Marek Olšák <maraeo@gmail.com> | 2013-07-02 17:02:14 +0200 |
| commit | b3d8b4c0b423539f17c13713673cfeb6d66ff7ed (patch) | |
| tree | 58ea816c6292ff40f5b820a1bdc2398b78708ebd /src/glsl/link_varyings.h | |
| parent | 3c555827c3e2fdb84ee4b4b8fd8296985cbb1fda (diff) | |
| download | external_mesa3d-b3d8b4c0b423539f17c13713673cfeb6d66ff7ed.zip external_mesa3d-b3d8b4c0b423539f17c13713673cfeb6d66ff7ed.tar.gz external_mesa3d-b3d8b4c0b423539f17c13713673cfeb6d66ff7ed.tar.bz2 | |
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 <ian.d.romanick@intel.com>
Diffstat (limited to 'src/glsl/link_varyings.h')
| -rw-r--r-- | src/glsl/link_varyings.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/glsl/link_varyings.h b/src/glsl/link_varyings.h index daa9d79..7f7be35 100644 --- a/src/glsl/link_varyings.h +++ b/src/glsl/link_varyings.h @@ -125,6 +125,10 @@ public: return this->vector_elements * this->matrix_columns * this->size; } + unsigned get_location() const { + return this->location; + } + private: /** * The name that was supplied to glTransformFeedbackVaryings. Used for |