diff options
Diffstat (limited to 'mesalib/src/mesa/shader/grammar/grammar.h')
| -rw-r--r-- | mesalib/src/mesa/shader/grammar/grammar.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/mesalib/src/mesa/shader/grammar/grammar.h b/mesalib/src/mesa/shader/grammar/grammar.h new file mode 100644 index 000000000..591e38aef --- /dev/null +++ b/mesalib/src/mesa/shader/grammar/grammar.h @@ -0,0 +1,103 @@ +/* + * Mesa 3-D graphics library + * Version: 6.2 + * + * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef GRAMMAR_H +#define GRAMMAR_H + + +#ifndef GRAMMAR_PORT_INCLUDE +#error Do not include this file directly, include your grammar_XXX.h instead +#endif + + +#ifdef __cplusplus +extern "C" { +#endif + +void grammar_alloc_free (void *); +void *grammar_alloc_malloc (size_t); +void *grammar_alloc_realloc (void *, size_t, size_t); +void *grammar_memory_copy (void *, const void *, size_t); +int grammar_string_compare (const byte *, const byte *); +int grammar_string_compare_n (const byte *, const byte *, size_t); +byte *grammar_string_copy (byte *, const byte *); +byte *grammar_string_copy_n (byte *, const byte *, size_t); +byte *grammar_string_duplicate (const byte *); +unsigned int grammar_string_length (const byte *); + +/* + loads grammar script from null-terminated ASCII <text> + returns unique grammar id to grammar object + returns 0 if an error occurs (call grammar_get_last_error to retrieve the error text) +*/ +grammar grammar_load_from_text (const byte *text); + +/* + sets a new <value> to a register <name> for grammar <id> + returns 0 on error (call grammar_get_last_error to retrieve the error text) + returns 1 on success +*/ +int grammar_set_reg8 (grammar id, const byte *name, byte value); + +/* + this function is obsolete, use only for debugging purposes + + checks if a null-terminated <text> matches given grammar <id> + returns 0 on error (call grammar_get_last_error to retrieve the error text) + returns 1 on success, the <prod> points to newly allocated buffer with production and <size> + is filled with the production size + call grammar_alloc_free to free the memory block pointed by <prod> +*/ +int grammar_check (grammar id, const byte *text, byte **prod, unsigned int *size); + +/* + does the same what grammar_check does but much more (approx. 4 times) faster + use this function instead of grammar_check + <estimate_prod_size> is a hint - the initial production buffer size will be of this size, + but if more room is needed it will be safely resized; set it to 0x1000 or so +*/ +int grammar_fast_check (grammar id, const byte *text, byte **prod, unsigned int *size, + unsigned int estimate_prod_size); + +/* + destroys grammar object identified by <id> + returns 0 on error (call grammar_get_last_error to retrieve the error text) + returns 1 on success +*/ +int grammar_destroy (grammar id); + +/* + retrieves last grammar error reported either by grammar_load_from_text, grammar_check + or grammar_destroy + the user allocated <text> buffer receives error description, <pos> points to error position, + <size> is the size of the text buffer to fill in - it must be at least 4 bytes long, +*/ +void grammar_get_last_error (byte *text, unsigned int size, int *pos); + +#ifdef __cplusplus +} +#endif + +#endif + |