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authorChris Forbes <[email protected]>2013-11-29 21:21:56 +1300
committerChris Forbes <[email protected]>2013-12-07 17:14:39 +1300
commit51aa15aca2bf5764b8cd62bbf2329eda40f7a859 (patch)
tree93f13b8280c101da3a69ec0d9e8f251b4bd9582c /src/glsl
parenta1ca5802401c384c1eadbf72cf910c65e377600c (diff)
glsl: Add frontend support for `sample` auxiliary storage qualifier
Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Francisco Jerez <[email protected]>
Diffstat (limited to 'src/glsl')
-rw-r--r--src/glsl/ast.h1
-rw-r--r--src/glsl/ast_type.cpp3
-rw-r--r--src/glsl/glsl_lexer.ll2
-rw-r--r--src/glsl/glsl_parser.yy9
-rw-r--r--src/glsl/glsl_parser_extras.cpp2
5 files changed, 13 insertions, 4 deletions
diff --git a/src/glsl/ast.h b/src/glsl/ast.h
index 5c214b6043b..76911f056d3 100644
--- a/src/glsl/ast.h
+++ b/src/glsl/ast.h
@@ -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;
diff --git a/src/glsl/ast_type.cpp b/src/glsl/ast_type.cpp
index 2b088bf8b85..d758bfa1f2a 100644
--- a/src/glsl/ast_type.cpp
+++ b/src/glsl/ast_type.cpp
@@ -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*
diff --git a/src/glsl/glsl_lexer.ll b/src/glsl/glsl_lexer.ll
index 822d70d6b66..50875bf3b23 100644
--- a/src/glsl/glsl_lexer.ll
+++ b/src/glsl/glsl_lexer.ll
@@ -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);
diff --git a/src/glsl/glsl_parser.yy b/src/glsl/glsl_parser.yy
index ada3690f609..10165547924 100644
--- a/src/glsl/glsl_parser.yy
+++ b/src/glsl/glsl_parser.yy
@@ -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
diff --git a/src/glsl/glsl_parser_extras.cpp b/src/glsl/glsl_parser_extras.cpp
index 8e350902355..2645c08af90 100644
--- a/src/glsl/glsl_parser_extras.cpp
+++ b/src/glsl/glsl_parser_extras.cpp
@@ -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)