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| author | Paul Berry <stereotype441@gmail.com> | 2011-10-21 07:40:37 -0700 |
|---|---|---|
| committer | Paul Berry <stereotype441@gmail.com> | 2011-10-27 15:31:20 -0700 |
| commit | c488150dea083a9677429b4185c6b20d7facd52b (patch) | |
| tree | 178b9c921d1408ad220d61b96276450104776472 /src/glsl/ir.h | |
| parent | cf45949d6a896651a5f3864d3b195e26d59eee74 (diff) | |
| download | external_mesa3d-c488150dea083a9677429b4185c6b20d7facd52b.zip external_mesa3d-c488150dea083a9677429b4185c6b20d7facd52b.tar.gz external_mesa3d-c488150dea083a9677429b4185c6b20d7facd52b.tar.bz2 | |
glsl: Distinguish between no interpolation qualifier and 'smooth'
Previously, we treated the 'smooth' qualifier as equivalent to no
qualifier at all. However, this is incorrect for the built-in color
variables (gl_FrontColor, gl_BackColor, gl_FrontSecondaryColor, and
gl_BackSecondaryColor). For those variables, if there is no qualifier
at all, interpolation should be flat if the shade model is GL_FLAT,
and smooth if the shade model is GL_SMOOTH.
To make this possible, I added a new value to the
glsl_interp_qualifier enum, INTERP_QUALIFIER_NONE.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'src/glsl/ir.h')
| -rw-r--r-- | src/glsl/ir.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/glsl/ir.h b/src/glsl/ir.h index 4ea8764..0c0cccb 100644 --- a/src/glsl/ir.h +++ b/src/glsl/ir.h @@ -283,6 +283,10 @@ public: * \return The string that would be used in a shader to specify \c * mode will be returned. * + * This function is used to generate error messages of the form "shader + * uses %s interpolation qualifier", so in the case where there is no + * interpolation qualifier, it returns "no". + * * This function should only be used on a shader input or output variable. */ const char *interpolation_string() const; |