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/*
* Copyright © 2010 Intel Corporation
*
* 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 (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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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 <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include "glcpp.h"
extern int yydebug;
static char *
load_text_file(void *ctx, const char *file_name)
{
char *text = NULL;
struct stat st;
ssize_t total_read = 0;
int fd = file_name == NULL ? STDIN_FILENO : open(file_name, O_RDONLY);
if (fd < 0) {
return NULL;
}
if (fstat(fd, & st) == 0) {
text = (char *) talloc_size(ctx, st.st_size + 1);
if (text != NULL) {
do {
ssize_t bytes = read(fd, text + total_read,
st.st_size - total_read);
if (bytes < 0) {
text = NULL;
break;
}
if (bytes == 0) {
break;
}
total_read += bytes;
} while (total_read < st.st_size);
text[total_read] = '\0';
}
}
close(fd);
return text;
}
int
main (void)
{
void *ctx = talloc(NULL, void*);
const char *shader = load_text_file(ctx, NULL);
char *info_log = talloc_strdup(ctx, "");
int ret = preprocess(ctx, &shader, &info_log, NULL);
printf("%s", shader);
fprintf(stderr, "%s", info_log);
talloc_free(ctx);
return ret;
}
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