diff options
| -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 2baeffc067f..6770eed3433 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); |