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glsl2: Perform some semantic checking of ARB_fcc layout qualifiers

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The rest cannot be handled until built-in variables (i.e.,
gl_FragCoord) can be redeclared to add qualifiers.
This commit is contained in:
Ian Romanick 2010-06-30 17:48:09 -07:00 • committed by Eric Anholt
parent f50f06552e
commit 8d8469eb2a
1 changed files with 13 additions and 0 deletions
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13
src/glsl/ast_to_hir.cpp
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@ -1542,6 +1542,19 @@ apply_type_qualifier_to_variable(const struct ast_type_qualifier *qual,
else
var->interpolation = ir_var_smooth;
/* FINISHME: Apply the fragment coord convetion layout qualifiers.
*/
if ((qual->origin_upper_left || qual->pixel_center_integer)
&& (strcmp(var->name, "gl_FragCoord") != 0)) {
const char *const qual_string = (qual->origin_upper_left)
? "origin_upper_left" : "pixel_center_integer";
_mesa_glsl_error(loc, state,
"layout qualifier `%s' can only be applied to "
"fragment shader input `gl_FragCoord'",
qual_string);
}
if (var->type->is_array() && (state->language_version >= 120)) {
var->array_lvalue = true;
}