diff options
Diffstat (limited to 'src/mesa/shader/slang/slang_preprocess.c')
| -rw-r--r-- | src/mesa/shader/slang/slang_preprocess.c | 98 |
1 files changed, 97 insertions, 1 deletions
diff --git a/src/mesa/shader/slang/slang_preprocess.c b/src/mesa/shader/slang/slang_preprocess.c index 76e757cb381..d6b52535119 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); } @@ -528,6 +531,56 @@ pp_ext_set(pp_ext *self, const char *name, GLboolean enable) } +static void +pp_pragmas_init(struct gl_sl_pragmas *pragmas) +{ + pragmas->Optimize = GL_TRUE; + pragmas->Debug = GL_FALSE; +} + + +/** + * Called in response to #pragma. For example, "#pragma debug(on)" would + * call this function as pp_pragma("debug", "on"). + * \return GL_TRUE if pragma is valid, GL_FALSE if invalid + */ +static GLboolean +pp_pragma(struct gl_sl_pragmas *pragmas, const char *pragma, const char *param) +{ +#if 0 + printf("#pragma %s %s\n", pragma, param); +#endif + if (_mesa_strcmp(pragma, "optimize") == 0) { + if (!param) + return GL_FALSE; /* missing required param */ + if (_mesa_strcmp(param, "on") == 0) { + pragmas->Optimize = GL_TRUE; + } + else if (_mesa_strcmp(param, "off") == 0) { + pragmas->Optimize = GL_FALSE; + } + else { + return GL_FALSE; /* invalid param */ + } + } + else if (_mesa_strcmp(pragma, "debug") == 0) { + if (!param) + return GL_FALSE; /* missing required param */ + if (_mesa_strcmp(param, "on") == 0) { + pragmas->Debug = GL_TRUE; + } + else if (_mesa_strcmp(param, "off") == 0) { + pragmas->Debug = GL_FALSE; + } + else { + return GL_FALSE; /* invalid param */ + } + } + /* all other pragmas are silently ignored */ + return GL_TRUE; +} + + /** * The state of preprocessor: current line, file and version number, list * of all defined macros and the #if/#endif context. @@ -862,11 +915,20 @@ 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, slang_info_log *elog, +<<<<<<< HEAD:src/mesa/shader/slang/slang_preprocess.c const struct gl_extensions *extensions) +======= + const struct gl_extensions *extensions, + struct gl_sl_pragmas *pragmas) +>>>>>>> origin/master:src/mesa/shader/slang/slang_preprocess.c { static const char *predefined[] = { "__FILE__", @@ -888,6 +950,10 @@ preprocess_source (slang_string *output, const char *source, } pp_state_init (&state, elog, extensions); +<<<<<<< HEAD:src/mesa/shader/slang/slang_preprocess.c +======= + pp_pragmas_init (pragmas); +>>>>>>> origin/master:src/mesa/shader/slang/slang_preprocess.c /* add the predefined symbols to the symbol table */ for (i = 0; predefined[i]; i++) { @@ -940,9 +1006,11 @@ 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 +1227,25 @@ 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(pragmas, pragma, param); + } + break; + case TOKEN_LINE: id = (const char *) (&prod[i]); i += _mesa_strlen (id) + 1; @@ -1223,7 +1310,12 @@ GLboolean _slang_preprocess_directives(slang_string *output, const char *input, slang_info_log *elog, +<<<<<<< HEAD:src/mesa/shader/slang/slang_preprocess.c const struct gl_extensions *extensions) +======= + const struct gl_extensions *extensions, + struct gl_sl_pragmas *pragmas) +>>>>>>> origin/master:src/mesa/shader/slang/slang_preprocess.c { grammar pid, eid; GLboolean success; @@ -1239,7 +1331,11 @@ _slang_preprocess_directives(slang_string *output, grammar_destroy (pid); return GL_FALSE; } +<<<<<<< HEAD:src/mesa/shader/slang/slang_preprocess.c success = preprocess_source (output, input, pid, eid, elog, extensions); +======= + success = preprocess_source (output, input, pid, eid, elog, extensions, pragmas); +>>>>>>> origin/master:src/mesa/shader/slang/slang_preprocess.c grammar_destroy (eid); grammar_destroy (pid); return success; |