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glsl: Add frontend support for sample auxiliary storage qualifier

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Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
This commit is contained in:
Chris Forbes
2013-11-29 21:21:56 +13:00
parent a1ca580240
commit 51aa15aca2
5 changed files with 13 additions and 4 deletions
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1
src/glsl/ast.h
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@@ -357,6 +357,7 @@ struct ast_type_qualifier {
unsigned in:1;
unsigned out:1;
unsigned centroid:1;
unsigned sample:1;
unsigned uniform:1;
unsigned smooth:1;
unsigned flat:1;

3
src/glsl/ast_type.cpp
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@@ -90,7 +90,8 @@ ast_type_qualifier::has_storage() const
bool
ast_type_qualifier::has_auxiliary_storage() const
{
return this->flags.q.centroid;
return this->flags.q.centroid
|| this->flags.q.sample;
}
const char*

2
src/glsl/glsl_lexer.ll
View File

@@ -520,7 +520,7 @@ readonly KEYWORD(0, 300, 0, 0, READONLY);
writeonly KEYWORD(0, 300, 0, 0, WRITEONLY);
resource KEYWORD(0, 300, 0, 0, RESOURCE);
patch KEYWORD(0, 300, 0, 0, PATCH);
sample KEYWORD(0, 300, 0, 0, SAMPLE);
sample KEYWORD_WITH_ALT(400, 300, 400, 0, yyextra->ARB_gpu_shader5_enable, SAMPLE);
subroutine KEYWORD(0, 300, 0, 0, SUBROUTINE);

9
src/glsl/glsl_parser.yy
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@@ -1521,7 +1521,7 @@ type_qualifier:
{
if ($2.has_auxiliary_storage()) {
_mesa_glsl_error(&@1, state,
"duplicate auxiliary storage qualifier (centroid)");
"duplicate auxiliary storage qualifier (centroid or sample)");
}
if (!state->ARB_shading_language_420pack_enable &&
@@ -1571,7 +1571,12 @@ auxiliary_storage_qualifier:
memset(& $$, 0, sizeof($$));
$$.flags.q.centroid = 1;
}
/* TODO: "sample" and "patch" also go here someday. */
| SAMPLE
{
memset(& $$, 0, sizeof($$));
$$.flags.q.sample = 1;
}
/* TODO: "patch" also goes here someday. */
storage_qualifier:
CONST_TOK

2
src/glsl/glsl_parser_extras.cpp
View File

@@ -878,6 +878,8 @@ _mesa_ast_type_qualifier_print(const struct ast_type_qualifier *q)
if (q->flags.q.centroid)
printf("centroid ");
if (q->flags.q.sample)
printf("sample ");
if (q->flags.q.uniform)
printf("uniform ");
if (q->flags.q.smooth)