diff options
Diffstat (limited to 'mesalib/src/glsl/glcpp/glcpp-parse.y')
| -rw-r--r-- | mesalib/src/glsl/glcpp/glcpp-parse.y | 62 |
1 files changed, 43 insertions, 19 deletions
diff --git a/mesalib/src/glsl/glcpp/glcpp-parse.y b/mesalib/src/glsl/glcpp/glcpp-parse.y index e7daf7fea..380a1d99c 100644 --- a/mesalib/src/glsl/glcpp/glcpp-parse.y +++ b/mesalib/src/glsl/glcpp/glcpp-parse.y @@ -133,6 +133,10 @@ _glcpp_parser_skip_stack_change_if (glcpp_parser_t *parser, YYLTYPE *loc, static void _glcpp_parser_skip_stack_pop (glcpp_parser_t *parser, YYLTYPE *loc); +static void +_glcpp_parser_handle_version_declaration(glcpp_parser_t *parser, intmax_t version, + const char *ident); + static int glcpp_parser_lex (YYSTYPE *yylval, YYLTYPE *yylloc, glcpp_parser_t *parser); @@ -334,25 +338,10 @@ control_line: _glcpp_parser_skip_stack_pop (parser, & @1); } NEWLINE | HASH_VERSION integer_constant NEWLINE { - macro_t *macro = hash_table_find (parser->defines, "__VERSION__"); - if (macro) { - hash_table_remove (parser->defines, "__VERSION__"); - ralloc_free (macro); - } - add_builtin_define (parser, "__VERSION__", $2); - - if ($2 == 100) - add_builtin_define (parser, "GL_ES", 1); - - /* Currently, all ES2 implementations support highp in the - * fragment shader, so we always define this macro in ES2. - * If we ever get a driver that doesn't support highp, we'll - * need to add a flag to the gl_context and check that here. - */ - if ($2 >= 130 || $2 == 100) - add_builtin_define (parser, "GL_FRAGMENT_PRECISION_HIGH", 1); - - ralloc_asprintf_rewrite_tail (&parser->output, &parser->output_length, "#version %" PRIiMAX, $2); + _glcpp_parser_handle_version_declaration(parser, $2, NULL); + } +| HASH_VERSION integer_constant IDENTIFIER NEWLINE { + _glcpp_parser_handle_version_declaration(parser, $2, $3); } | HASH NEWLINE ; @@ -2032,3 +2021,38 @@ _glcpp_parser_skip_stack_pop (glcpp_parser_t *parser, YYLTYPE *loc) parser->skip_stack = node->next; ralloc_free (node); } + +static void +_glcpp_parser_handle_version_declaration(glcpp_parser_t *parser, intmax_t version, + const char *es_identifier) +{ + /* Note: We assume that if any identifier is present, it means ES. + * The GLSL parser will double-check that the identifier is correct. + */ + bool is_es = es_identifier != NULL; + + macro_t *macro = hash_table_find (parser->defines, "__VERSION__"); + if (macro) { + hash_table_remove (parser->defines, "__VERSION__"); + ralloc_free (macro); + } + add_builtin_define (parser, "__VERSION__", version); + + if (version == 100) + is_es = true; + if (is_es) + add_builtin_define (parser, "GL_ES", 1); + + /* Currently, all ES2/ES3 implementations support highp in the + * fragment shader, so we always define this macro in ES2/ES3. + * If we ever get a driver that doesn't support highp, we'll + * need to add a flag to the gl_context and check that here. + */ + if (version >= 130 || is_es) + add_builtin_define (parser, "GL_FRAGMENT_PRECISION_HIGH", 1); + + ralloc_asprintf_rewrite_tail (&parser->output, &parser->output_length, + "#version %" PRIiMAX "%s%s", version, + es_identifier ? " " : "", + es_identifier ? es_identifier : ""); +} |