diff options
Diffstat (limited to 'src/glsl/glsl_parser.yy')
| -rw-r--r-- | src/glsl/glsl_parser.yy | 50 |
1 files changed, 30 insertions, 20 deletions
diff --git a/src/glsl/glsl_parser.yy b/src/glsl/glsl_parser.yy index 5a7db874df2..718531cea8a 100644 --- a/src/glsl/glsl_parser.yy +++ b/src/glsl/glsl_parser.yy @@ -162,6 +162,7 @@ static void yyerror(YYLTYPE *loc, _mesa_glsl_parse_state *st, const char *msg) %type <node> simple_statement %type <n> precision_qualifier %type <type_qualifier> type_qualifier +%type <type_qualifier> auxiliary_storage_qualifier %type <type_qualifier> storage_qualifier %type <type_qualifier> interpolation_qualifier %type <type_qualifier> layout_qualifier @@ -1325,6 +1326,7 @@ type_qualifier: memset(& $$, 0, sizeof($$)); $$.flags.q.invariant = 1; } + | auxiliary_storage_qualifier | storage_qualifier | interpolation_qualifier | layout_qualifier @@ -1338,13 +1340,13 @@ type_qualifier: * In GLSL 4.20, these can be specified in any order. In earlier versions, * they appear in this order (see GLSL 1.50 section 4.7 & comments below): * - * invariant interpolation storage precision ...or... + * invariant interpolation auxiliary storage precision ...or... * layout storage precision * * Each qualifier's rule ensures that the accumulated qualifiers on the right * side don't contain any that must appear on the left hand side. * For example, when processing a storage qualifier, we check that there are - * no interpolation, layout, or invariant qualifiers to the right. + * no auxiliary, interpolation, layout, or invariant qualifiers to the right. */ | INVARIANT type_qualifier { @@ -1410,6 +1412,20 @@ type_qualifier: $$ = $1; $$.merge_qualifier(&@1, state, $2); } + | auxiliary_storage_qualifier type_qualifier + { + if ($2.has_auxiliary_storage()) { + _mesa_glsl_error(&@1, state, + "Duplicate auxiliary storage qualifier (centroid).\n"); + } + + if ($2.flags.q.invariant || $2.has_interpolation() || $2.has_layout()) { + _mesa_glsl_error(&@1, state, "Auxiliary storage qualifiers must come " + "just before storage qualifiers.\n"); + } + $$ = $1; + $$.flags.i |= $2.flags.i; + } | storage_qualifier type_qualifier { /* Section 4.3 of the GLSL 1.20 specification states: @@ -1420,9 +1436,11 @@ type_qualifier: _mesa_glsl_error(&@1, state, "Duplicate storage qualifier.\n"); if (!state->ARB_shading_language_420pack_enable && - ($2.flags.q.invariant || $2.has_interpolation() || $2.has_layout())) { + ($2.flags.q.invariant || $2.has_interpolation() || $2.has_layout() || + $2.has_auxiliary_storage())) { _mesa_glsl_error(&@1, state, "Storage qualifiers must come after " - "invariant, interpolation, and layout qualifiers.\n"); + "invariant, interpolation, layout and auxiliary " + "storage qualifiers.\n"); } $$ = $1; @@ -1441,6 +1459,14 @@ type_qualifier: } ; +auxiliary_storage_qualifier: + CENTROID + { + memset(& $$, 0, sizeof($$)); + $$.flags.q.centroid = 1; + } + /* TODO: "sample" and "patch" also go here someday. */ + storage_qualifier: CONST_TOK { @@ -1457,12 +1483,6 @@ storage_qualifier: memset(& $$, 0, sizeof($$)); $$.flags.q.varying = 1; } - | CENTROID VARYING - { - memset(& $$, 0, sizeof($$)); - $$.flags.q.centroid = 1; - $$.flags.q.varying = 1; - } | IN_TOK { memset(& $$, 0, sizeof($$)); @@ -1473,16 +1493,6 @@ storage_qualifier: memset(& $$, 0, sizeof($$)); $$.flags.q.out = 1; } - | CENTROID IN_TOK - { - memset(& $$, 0, sizeof($$)); - $$.flags.q.centroid = 1; $$.flags.q.in = 1; - } - | CENTROID OUT_TOK - { - memset(& $$, 0, sizeof($$)); - $$.flags.q.centroid = 1; $$.flags.q.out = 1; - } | UNIFORM { memset(& $$, 0, sizeof($$)); |