diff options
| -rw-r--r-- | src/mesa/shader/slang/library/slang_pp_directives.syn | 20 | ||||
| -rw-r--r-- | src/mesa/shader/slang/library/slang_pp_directives_syn.h | 11 | ||||
| -rw-r--r-- | src/mesa/shader/slang/slang_preprocess.c | 44 |
3 files changed, 74 insertions, 1 deletions
diff --git a/src/mesa/shader/slang/library/slang_pp_directives.syn b/src/mesa/shader/slang/library/slang_pp_directives.syn index d4a321034d..b51d168cc0 100644 --- a/src/mesa/shader/slang/library/slang_pp_directives.syn +++ b/src/mesa/shader/slang/library/slang_pp_directives.syn @@ -79,6 +79,12 @@ .emtcode BEHAVIOR_WARN 3 .emtcode BEHAVIOR_DISABLE 4 +/* + * The PRAGMA_* symbols follow TOKEN_PRAGMA + */ +.emtcode PRAGMA_NO_PARAM 0 +.emtcode PRAGMA_PARAM 1 + source optional_directive .and .loop source_element .and '\0' .emit ESCAPE_TOKEN .emit TOKEN_END; @@ -153,6 +159,7 @@ directive dir_elif .emit TOKEN_ELIF .or dir_endif .emit TOKEN_ENDIF .or dir_ext .emit TOKEN_EXTENSION .or + dir_pragma .emit TOKEN_PRAGMA .or dir_line .emit TOKEN_LINE; dir_define @@ -187,6 +194,19 @@ dir_ext dir_line optional_space .and '#' .and optional_space .and "line" .and expression; +dir_pragma + optional_space .and '#' .and optional_space .and "pragma" .and symbol .and opt_pragma_param; + + +opt_pragma_param + pragma_param .or .true .emit PRAGMA_NO_PARAM; + +pragma_param + optional_space .and '(' .emit PRAGMA_PARAM .and optional_space .and symbol_no_space .and optional_space .and ')'; + +symbol_no_space + symbol_character .emit * .and .loop symbol_character2 .emit * .and .true .emit '\0'; + symbol space .and symbol_character .emit * .and .loop symbol_character2 .emit * .and .true .emit '\0'; diff --git a/src/mesa/shader/slang/library/slang_pp_directives_syn.h b/src/mesa/shader/slang/library/slang_pp_directives_syn.h index 35e7bc2761..430f8d8217 100644 --- a/src/mesa/shader/slang/library/slang_pp_directives_syn.h +++ b/src/mesa/shader/slang/library/slang_pp_directives_syn.h @@ -20,6 +20,8 @@ ".emtcode BEHAVIOR_ENABLE 2\n" ".emtcode BEHAVIOR_WARN 3\n" ".emtcode BEHAVIOR_DISABLE 4\n" +".emtcode PRAGMA_NO_PARAM 0\n" +".emtcode PRAGMA_PARAM 1\n" "source\n" " optional_directive .and .loop source_element .and '\\0' .emit ESCAPE_TOKEN .emit TOKEN_END;\n" "source_element\n" @@ -76,6 +78,7 @@ " dir_elif .emit TOKEN_ELIF .or\n" " dir_endif .emit TOKEN_ENDIF .or\n" " dir_ext .emit TOKEN_EXTENSION .or\n" +" dir_pragma .emit TOKEN_PRAGMA .or\n" " dir_line .emit TOKEN_LINE;\n" "dir_define\n" " optional_space .and '#' .and optional_space .and \"define\" .and symbol .and opt_parameters .and\n" @@ -99,6 +102,14 @@ " optional_space .and ':' .and optional_space .and extension_behavior;\n" "dir_line\n" " optional_space .and '#' .and optional_space .and \"line\" .and expression;\n" +"dir_pragma\n" +" optional_space .and '#' .and optional_space .and \"pragma\" .and symbol .and opt_pragma_param;\n" +"opt_pragma_param\n" +" pragma_param .or .true .emit PRAGMA_NO_PARAM;\n" +"pragma_param\n" +" optional_space .and '(' .emit PRAGMA_PARAM .and optional_space .and symbol_no_space .and optional_space .and ')';\n" +"symbol_no_space\n" +" symbol_character .emit * .and .loop symbol_character2 .emit * .and .true .emit '\\0';\n" "symbol\n" " space .and symbol_character .emit * .and .loop symbol_character2 .emit * .and .true .emit '\\0';\n" "opt_parameters\n" diff --git a/src/mesa/shader/slang/slang_preprocess.c b/src/mesa/shader/slang/slang_preprocess.c index 76e757cb38..244a09171c 100644 --- a/src/mesa/shader/slang/slang_preprocess.c +++ b/src/mesa/shader/slang/slang_preprocess.c @@ -51,6 +51,9 @@ grammar_error_to_log (slang_info_log *log) GLint pos; grammar_get_last_error ((byte *) (buf), sizeof (buf), &pos); + if (buf[0] == 0) { + _mesa_snprintf(buf, sizeof(buf), "Preprocessor error"); + } slang_info_log_error (log, buf); } @@ -529,6 +532,20 @@ pp_ext_set(pp_ext *self, const char *name, GLboolean enable) /** + * Called in response to #pragma. For example, "#pragma debug(on)" would + * call this function as pp_pragma("debug", "on"). + * At this time, pragmas are silently ignored. + */ +static void +pp_pragma(const char *pragma, const char *param) +{ +#if 0 + printf("#pragma %s %s\n", pragma, param); +#endif +} + + +/** * The state of preprocessor: current line, file and version number, list * of all defined macros and the #if/#endif context. */ @@ -862,6 +879,10 @@ parse_if (slang_string *output, const byte *prod, GLuint *pi, GLint *result, pp_ #define BEHAVIOR_WARN 3 #define BEHAVIOR_DISABLE 4 +#define PRAGMA_NO_PARAM 0 +#define PRAGMA_PARAM 1 + + static GLboolean preprocess_source (slang_string *output, const char *source, grammar pid, grammar eid, @@ -940,9 +961,11 @@ preprocess_source (slang_string *output, const char *source, else { const char *id; GLuint idlen; + GLubyte token; i++; - switch (prod[i++]) { + token = prod[i++]; + switch (token) { case TOKEN_END: /* End of source string. @@ -1159,6 +1182,25 @@ preprocess_source (slang_string *output, const char *source, } break; + case TOKEN_PRAGMA: + { + GLint have_param; + const char *pragma, *param; + + pragma = (const char *) (&prod[i]); + i += _mesa_strlen(pragma) + 1; + have_param = (prod[i++] == PRAGMA_PARAM); + if (have_param) { + param = (const char *) (&prod[i]); + i += _mesa_strlen(param) + 1; + } + else { + param = NULL; + } + pp_pragma(pragma, param); + } + break; + case TOKEN_LINE: id = (const char *) (&prod[i]); i += _mesa_strlen (id) + 1; |