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glsl: Make builtin_compiler portable for non-unices.

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This commit is contained in:
José Fonseca 2011-01-12 16:31:07 +00:00
parent f9bb5323eb
commit 0035d1d902
1 changed files with 25 additions and 28 deletions
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53
src/glsl/main.cpp
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@ -24,11 +24,6 @@
#include <cstdio>
#include <getopt.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include "ast.h"
#include "glsl_parser_extras.h"
#include "glsl_parser.h"
@ -110,38 +105,40 @@ static char *
load_text_file(void *ctx, const char *file_name)
{
char *text = NULL;
struct stat st;
ssize_t total_read = 0;
int fd = open(file_name, O_RDONLY);
size_t size;
size_t total_read = 0;
FILE *fp = fopen(file_name, "rb");
if (fd < 0) {
if (!fp) {
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) {
free(text);
text = NULL;
break;
}
fseek(fp, 0L, SEEK_END);
size = ftell(fp);
fseek(fp, 0L, SEEK_SET);
if (bytes == 0) {
break;
}
text = (char *) talloc_size(ctx, size + 1);
if (text != NULL) {
do {
size_t bytes = fread(text + total_read,
1, size - total_read, fp);
if (bytes < size - total_read) {
free(text);
text = NULL;
break;
}
total_read += bytes;
} while (total_read < st.st_size);
if (bytes == 0) {
break;
}
text[total_read] = '\0';
}
total_read += bytes;
} while (total_read < size);
text[total_read] = '\0';
}
close(fd);
fclose(fp);
return text;
}