diff options
| author | Chad Versace <chad.versace@intel.com> | 2010-12-15 16:32:47 -0800 |
|---|---|---|
| committer | Chad Versace <chad.versace@intel.com> | 2011-01-04 10:49:10 -0800 |
| commit | b84e3f570f4b5aba1dd96760e090ae976d0e1cba (patch) | |
| tree | a77ea67a4eb112c09db5a923020517582287256c /src/glsl/ast_to_hir.cpp | |
| parent | 4a62a1c366703c5df10fd1d96f46ecb03ce45138 (diff) | |
glsl: Allow redeclaration of gl_Color and its variants in GLSL 1.30
Allow redeclaration of the following built-in variables with an
interpolation qualifier in language versions >= 1.30:
* gl_FrontColor
* gl_BackColor
* gl_FrontSecondaryColor
* gl_BackSecondaryColor
* gl_Color
* gl_SecondaryColor
See section 4.3.7 of the GLSL 1.30 spec.
Diffstat (limited to 'src/glsl/ast_to_hir.cpp')
| -rw-r--r-- | src/glsl/ast_to_hir.cpp | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp index 2baeffc067..6770eed343 100644 --- a/src/glsl/ast_to_hir.cpp +++ b/src/glsl/ast_to_hir.cpp @@ -2344,6 +2344,27 @@ ast_declarator_list::hir(exec_list *instructions, */ earlier->origin_upper_left = var->origin_upper_left; earlier->pixel_center_integer = var->pixel_center_integer; + + /* According to section 4.3.7 of the GLSL 1.30 spec, + * the following built-in varaibles can be redeclared with an + * interpolation qualifier: + * * gl_FrontColor + * * gl_BackColor + * * gl_FrontSecondaryColor + * * gl_BackSecondaryColor + * * gl_Color + * * gl_SecondaryColor + */ + } else if (state->language_version >= 130 + && (strcmp(var->name, "gl_FrontColor") == 0 + || strcmp(var->name, "gl_BackColor") == 0 + || strcmp(var->name, "gl_FrontSecondaryColor") == 0 + || strcmp(var->name, "gl_BackSecondaryColor") == 0 + || strcmp(var->name, "gl_Color") == 0 + || strcmp(var->name, "gl_SecondaryColor") == 0) + && earlier->type == var->type + && earlier->mode == var->mode) { + earlier->interpolation = var->interpolation; } else { YYLTYPE loc = this->get_location(); _mesa_glsl_error(&loc, state, "`%s' redeclared", decl->identifier); |