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ast_to_hir: Reject function names that start with "gl_".

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Fixes piglit test redeclaration-03.vert.
This commit is contained in:
Kenneth Graunke
2010-08-20 02:14:35 -07:00
parent 826a39cb14
commit edd180f032
1 changed files with 12 additions and 0 deletions
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12
src/glsl/ast_to_hir.cpp
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@@ -2099,6 +2099,18 @@ ast_function::hir(exec_list *instructions,
const char *const name = identifier; const char *const name = identifier;
/* From page 15 (page 21 of the PDF) of the GLSL 1.10 spec,
*
* "Identifiers starting with "gl_" are reserved for use by
* OpenGL, and may not be declared in a shader as either a
* variable or a function."
*/
if (strncmp(name, "gl_", 3) == 0) {
YYLTYPE loc = this->get_location();
_mesa_glsl_error(&loc, state,
"identifier `%s' uses reserved `gl_' prefix", name);
}
/* Convert the list of function parameters to HIR now so that they can be /* Convert the list of function parameters to HIR now so that they can be
* used below to compare this function's signature with previously seen * used below to compare this function's signature with previously seen
* signatures for functions with the same name. * signatures for functions with the same name.