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#include "shared/read_file.h"
#include <stdio.h>
using namespace std;
string read_file(const string &filename, const unsigned char *start, const size_t size)
{
FILE *fp = fopen(filename.c_str(), "r");
if (fp == nullptr) {
// Fall back to the version we compiled in. (We prefer disk if we can,
// since that makes it possible to work on shaders without recompiling
// all the time.)
if (start != nullptr) {
return string(reinterpret_cast<const char *>(start),
reinterpret_cast<const char *>(start) + size);
}
perror(filename.c_str());
abort();
}
int ret = fseek(fp, 0, SEEK_END);
if (ret == -1) {
perror("fseek(SEEK_END)");
abort();
}
int disk_size = ftell(fp);
if (disk_size == -1) {
perror("ftell");
abort();
}
ret = fseek(fp, 0, SEEK_SET);
if (ret == -1) {
perror("fseek(SEEK_SET)");
abort();
}
string str;
str.resize(disk_size);
ret = fread(&str[0], disk_size, 1, fp);
if (ret == -1) {
perror("fread");
abort();
}
if (ret == 0) {
fprintf(stderr, "Short read when trying to read %d bytes from %s\n",
disk_size, filename.c_str());
abort();
}
fclose(fp);
return str;
}
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