diff options
Diffstat (limited to 'src/glsl')
| -rw-r--r-- | src/glsl/ast.h | 23 | ||||
| -rw-r--r-- | src/glsl/ast_type.cpp | 45 | ||||
| -rw-r--r-- | src/glsl/glsl_parser.yy | 58 | ||||
| -rw-r--r-- | src/glsl/glsl_parser_extras.cpp | 4 | ||||
| -rw-r--r-- | src/glsl/glsl_parser_extras.h | 7 |
5 files changed, 99 insertions, 38 deletions
diff --git a/src/glsl/ast.h b/src/glsl/ast.h index de3f2dfeb0b..50747822d2a 100644 --- a/src/glsl/ast.h +++ b/src/glsl/ast.h @@ -338,6 +338,25 @@ enum { }; struct ast_type_qualifier { + /* Callers of this ralloc-based new need not call delete. It's + * easier to just ralloc_free 'ctx' (or any of its ancestors). */ + static void* operator new(size_t size, void *ctx) + { + void *node; + + node = rzalloc_size(ctx, size); + assert(node != NULL); + + return node; + } + + /* If the user *does* call delete, that's OK, we will just + * ralloc_free in that case. */ + static void operator delete(void *table) + { + ralloc_free(table); + } + union { struct { unsigned invariant:1; @@ -424,6 +443,10 @@ struct ast_type_qualifier { * returned string is undefined but not null. */ const char *interpolation_string() const; + + bool merge_qualifier(YYLTYPE *loc, + _mesa_glsl_parse_state *state, + ast_type_qualifier q); }; class ast_declarator_list; diff --git a/src/glsl/ast_type.cpp b/src/glsl/ast_type.cpp index 6c44f8c41de..29493e2f6c6 100644 --- a/src/glsl/ast_type.cpp +++ b/src/glsl/ast_type.cpp @@ -71,3 +71,48 @@ ast_type_qualifier::interpolation_string() const else return NULL; } + +bool +ast_type_qualifier::merge_qualifier(YYLTYPE *loc, + _mesa_glsl_parse_state *state, + ast_type_qualifier q) +{ + ast_type_qualifier ubo_mat_mask; + ubo_mat_mask.flags.i = 0; + ubo_mat_mask.flags.q.row_major = 1; + ubo_mat_mask.flags.q.column_major = 1; + + ast_type_qualifier ubo_layout_mask; + ubo_layout_mask.flags.i = 0; + ubo_layout_mask.flags.q.std140 = 1; + ubo_layout_mask.flags.q.packed = 1; + ubo_layout_mask.flags.q.shared = 1; + + /* Uniform block layout qualifiers get to overwrite each + * other (rightmost having priority), while all other + * qualifiers currently don't allow duplicates. + */ + + if ((this->flags.i & q.flags.i & ~(ubo_mat_mask.flags.i | + ubo_layout_mask.flags.i)) != 0) { + _mesa_glsl_error(loc, state, + "duplicate layout qualifiers used\n"); + return false; + } + + if ((q.flags.i & ubo_mat_mask.flags.i) != 0) + this->flags.i &= ~ubo_mat_mask.flags.i; + if ((q.flags.i & ubo_layout_mask.flags.i) != 0) + this->flags.i &= ~ubo_layout_mask.flags.i; + + this->flags.i |= q.flags.i; + + if (q.flags.q.explicit_location) + this->location = q.location; + + if (q.flags.q.explicit_index) + this->index = q.index; + + return true; +} + diff --git a/src/glsl/glsl_parser.yy b/src/glsl/glsl_parser.yy index ba21b5479cd..04c64f096b8 100644 --- a/src/glsl/glsl_parser.yy +++ b/src/glsl/glsl_parser.yy @@ -1113,42 +1113,10 @@ layout_qualifier_id_list: layout_qualifier_id | layout_qualifier_id_list ',' layout_qualifier_id { - ast_type_qualifier ubo_mat_mask; - ubo_mat_mask.flags.i = 0; - ubo_mat_mask.flags.q.row_major = 1; - ubo_mat_mask.flags.q.column_major = 1; - - ast_type_qualifier ubo_layout_mask; - ubo_layout_mask.flags.i = 0; - ubo_layout_mask.flags.q.std140 = 1; - ubo_layout_mask.flags.q.packed = 1; - ubo_layout_mask.flags.q.shared = 1; - - /* Uniform block layout qualifiers get to overwrite each - * other (rightmost having priority), while all other - * qualifiers currently don't allow duplicates. - */ - if (($1.flags.i & $3.flags.i & ~(ubo_mat_mask.flags.i | - ubo_layout_mask.flags.i)) != 0) { - _mesa_glsl_error(& @3, state, - "duplicate layout qualifiers used\n"); + $$ = $1; + if (!$$.merge_qualifier(& @3, state, $3)) { YYERROR; } - - $$ = $1; - - if (($3.flags.i & ubo_mat_mask.flags.i) != 0) - $$.flags.i &= ~ubo_mat_mask.flags.i; - if (($3.flags.i & ubo_layout_mask.flags.i) != 0) - $$.flags.i &= ~ubo_layout_mask.flags.i; - - $$.flags.i |= $3.flags.i; - - if ($3.flags.q.explicit_location) - $$.location = $3.location; - - if ($3.flags.q.explicit_index) - $$.index = $3.index; } ; @@ -1938,6 +1906,7 @@ external_declaration: function_definition { $$ = $1; } | declaration { $$ = $1; } | pragma_statement { $$ = NULL; } + | layout_defaults { $$ = NULL; } ; function_definition: @@ -1958,14 +1927,18 @@ uniform_block: UNIFORM NEW_IDENTIFIER '{' member_list '}' ';' { void *ctx = state; - ast_type_qualifier no_qual; - memset(&no_qual, 0, sizeof(no_qual)); - $$ = new(ctx) ast_uniform_block(no_qual, $2, $4); + $$ = new(ctx) ast_uniform_block(*state->default_uniform_qualifier, + $2, $4); } | layout_qualifier UNIFORM NEW_IDENTIFIER '{' member_list '}' ';' { void *ctx = state; - $$ = new(ctx) ast_uniform_block($1, $3, $5); + + ast_type_qualifier qual = *state->default_uniform_qualifier; + if (!qual.merge_qualifier(& @1, state, $1)) { + YYERROR; + } + $$ = new(ctx) ast_uniform_block(qual, $3, $5); } ; @@ -2019,3 +1992,12 @@ member_declaration: $$->declarations.push_degenerate_list_at_head(& $3->link); } ; + +layout_defaults: + layout_qualifier UNIFORM ';' + { + if (!state->default_uniform_qualifier->merge_qualifier(& @1, state, + $1)) { + YYERROR; + } + } diff --git a/src/glsl/glsl_parser_extras.cpp b/src/glsl/glsl_parser_extras.cpp index 4e1f3324011..09e1e590db6 100644 --- a/src/glsl/glsl_parser_extras.cpp +++ b/src/glsl/glsl_parser_extras.cpp @@ -107,6 +107,10 @@ _mesa_glsl_parse_state::_mesa_glsl_parse_state(struct gl_context *_ctx, if (ctx->Const.ForceGLSLExtensionsWarn) _mesa_glsl_process_extension("all", NULL, "warn", NULL, this); + + this->default_uniform_qualifier = new(this) ast_type_qualifier(); + this->default_uniform_qualifier->flags.q.shared = 1; + this->default_uniform_qualifier->flags.q.column_major = 1; } const char * diff --git a/src/glsl/glsl_parser_extras.h b/src/glsl/glsl_parser_extras.h index bdb5b677cdf..c0a96c730c9 100644 --- a/src/glsl/glsl_parser_extras.h +++ b/src/glsl/glsl_parser_extras.h @@ -92,6 +92,13 @@ struct _mesa_glsl_parse_state { enum _mesa_glsl_parser_targets target; /** + * Default uniform layout qualifiers tracked during parsing. + * Currently affects uniform blocks and uniform buffer variables in + * those blocks. + */ + class ast_type_qualifier *default_uniform_qualifier; + + /** * Printable list of GLSL versions supported by the current context * * \note |