diff options
Diffstat (limited to 'src/glsl/pp')
| -rw-r--r-- | src/glsl/pp/SConscript | 1 | ||||
| -rw-r--r-- | src/glsl/pp/sl_pp_line.c | 95 | ||||
| -rw-r--r-- | src/glsl/pp/sl_pp_process.c | 7 | ||||
| -rw-r--r-- | src/glsl/pp/sl_pp_process.h | 6 |
4 files changed, 108 insertions, 1 deletions
diff --git a/src/glsl/pp/SConscript b/src/glsl/pp/SConscript index dae8830eeb..cc930380c2 100644 --- a/src/glsl/pp/SConscript +++ b/src/glsl/pp/SConscript @@ -14,6 +14,7 @@ glsl = env.StaticLibrary( 'sl_pp_expression.c', 'sl_pp_extension.c', 'sl_pp_if.c', + 'sl_pp_line.c', 'sl_pp_macro.c', 'sl_pp_pragma.c', 'sl_pp_process.c', diff --git a/src/glsl/pp/sl_pp_line.c b/src/glsl/pp/sl_pp_line.c new file mode 100644 index 0000000000..3300a4785b --- /dev/null +++ b/src/glsl/pp/sl_pp_line.c @@ -0,0 +1,95 @@ +/************************************************************************** + * + * 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 "sl_pp_process.h" + + +int +sl_pp_process_line(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last) +{ + unsigned int i; + struct sl_pp_process_state state; + int line_number = -1; + int file_number = -1; + + memset(&state, 0, sizeof(state)); + for (i = first; i < last;) { + switch (input[i].token) { + case SL_PP_WHITESPACE: + i++; + break; + + case SL_PP_IDENTIFIER: + if (sl_pp_macro_expand(context, input, &i, NULL, &state, 0)) { + free(state.out); + return -1; + } + break; + + default: + if (sl_pp_process_out(&state, &input[i])) { + free(state.out); + return -1; + } + i++; + } + } + + if (state.out_len > 0 && state.out[0].token == SL_PP_NUMBER) { + line_number = state.out[0].data.number; + } else { + strcpy(context->error_msg, "expected number after `#line'"); + free(state.out); + return -1; + } + + if (state.out_len > 1) { + if (state.out[1].token == SL_PP_NUMBER) { + file_number = state.out[1].data.number; + } else { + strcpy(context->error_msg, "expected number after line number"); + free(state.out); + return -1; + } + + if (state.out_len > 2) { + strcpy(context->error_msg, "expected end of line after file number"); + free(state.out); + return -1; + } + } + + free(state.out); + + /* TODO: Do something with line and file numbers. */ + + return 0; +} diff --git a/src/glsl/pp/sl_pp_process.c b/src/glsl/pp/sl_pp_process.c index 18289790d1..5479e8a868 100644 --- a/src/glsl/pp/sl_pp_process.c +++ b/src/glsl/pp/sl_pp_process.c @@ -155,6 +155,10 @@ sl_pp_process(struct sl_pp_context *context, if (sl_pp_process_extension(context, input, first, last, &state)) { return -1; } + } else if (!strcmp(name, "line")) { + if (sl_pp_process_line(context, input, first, last)) { + return -1; + } } else if (!strcmp(name, "pragma")) { if (sl_pp_process_pragma(context, input, first, last, &state)) { return -1; @@ -164,7 +168,8 @@ sl_pp_process(struct sl_pp_context *context, return -1; } } else { - /* XXX: Ignore. */ + strcpy(context->error_msg, "unrecognised directive name"); + return -1; } } diff --git a/src/glsl/pp/sl_pp_process.h b/src/glsl/pp/sl_pp_process.h index 5891866543..6f90fbd3e7 100644 --- a/src/glsl/pp/sl_pp_process.h +++ b/src/glsl/pp/sl_pp_process.h @@ -113,6 +113,12 @@ sl_pp_process_extension(struct sl_pp_context *context, struct sl_pp_process_state *state); int +sl_pp_process_line(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last); + +int sl_pp_process_out(struct sl_pp_process_state *state, const struct sl_pp_token_info *token); |