diff options
| author | Paul Berry <[email protected]> | 2011-10-21 07:55:48 -0700 |
|---|---|---|
| committer | Paul Berry <[email protected]> | 2011-10-27 15:31:32 -0700 |
| commit | baf7f99fd7a092a1390b7a145e09caa5325a8116 (patch) | |
| tree | fc8bea32687da29cacf8ec581e69446bf67bfcfd /src/glsl/ir.cpp | |
| parent | c488150dea083a9677429b4185c6b20d7facd52b (diff) | |
glsl: add ir_variable::determine_interpolation_mode() function.
This function determines how a variable should be interpolated based
both on interpolation qualifiers and the current shade model.
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
Diffstat (limited to 'src/glsl/ir.cpp')
| -rw-r--r-- | src/glsl/ir.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/glsl/ir.cpp b/src/glsl/ir.cpp index 9aad0fcd42f..ef7300e6535 100644 --- a/src/glsl/ir.cpp +++ b/src/glsl/ir.cpp @@ -1354,6 +1354,21 @@ ir_variable::interpolation_string() const } +glsl_interp_qualifier +ir_variable::determine_interpolation_mode(bool flat_shade) +{ + if (this->interpolation != INTERP_QUALIFIER_NONE) + return (glsl_interp_qualifier) this->interpolation; + int location = this->location; + bool is_gl_Color = + location == FRAG_ATTRIB_COL0 || location == FRAG_ATTRIB_COL1; + if (flat_shade && is_gl_Color) + return INTERP_QUALIFIER_FLAT; + else + return INTERP_QUALIFIER_SMOOTH; +} + + ir_function_signature::ir_function_signature(const glsl_type *return_type) : return_type(return_type), is_defined(false), _function(NULL) { |