diff options
Diffstat (limited to 'src/glsl/pp/sl_pp_pragma.c')
-rw-r--r-- | src/glsl/pp/sl_pp_pragma.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/glsl/pp/sl_pp_pragma.c b/src/glsl/pp/sl_pp_pragma.c new file mode 100644 index 00000000000..489eb17b8eb --- /dev/null +++ b/src/glsl/pp/sl_pp_pragma.c @@ -0,0 +1,108 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * 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, sub license, 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 (including the + * next paragraph) 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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. + * + **************************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include "sl_pp_process.h" + + +int +sl_pp_process_pragma(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last, + struct sl_pp_process_state *state) +{ + int pragma_name = -1; + struct sl_pp_token_info out; + int arg_name = -1; + + if (first < last && input[first].token == SL_PP_IDENTIFIER) { + pragma_name = input[first].data.identifier; + first++; + } + if (pragma_name == -1) { + return 0; + } + + if (pragma_name == context->dict.optimize) { + out.token = SL_PP_PRAGMA_OPTIMIZE; + } else if (pragma_name == context->dict.debug) { + out.token = SL_PP_PRAGMA_DEBUG; + } else { + return 0; + } + + while (first < last && input[first].token == SL_PP_WHITESPACE) { + first++; + } + + if (first < last && input[first].token == SL_PP_LPAREN) { + first++; + } else { + return 0; + } + + while (first < last && input[first].token == SL_PP_WHITESPACE) { + first++; + } + + if (first < last && input[first].token == SL_PP_IDENTIFIER) { + arg_name = input[first].data.identifier; + first++; + } + if (arg_name == -1) { + return 0; + } + + if (arg_name == context->dict.off) { + out.data.pragma = 0; + } else if (arg_name == context->dict.on) { + out.data.pragma = 1; + } else { + return 0; + } + + while (first < last && input[first].token == SL_PP_WHITESPACE) { + first++; + } + + if (first < last && input[first].token == SL_PP_RPAREN) { + first++; + } else { + return 0; + } + + /* Ignore the tokens that follow. */ + + if (sl_pp_process_out(state, &out)) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + + return 0; +} |