int
process (char const *srcfn)
{
int fd;
char *rc;
u_char *data;
size_t data_length;
struct stat fs;
u_int height, width;
fd = open(srcfn, O_RDONLY);
if (fd == -1)
{
perror("ERROR: Can't open the file for reading");
return 1;
}
fstat(fd, &fs);
data_length = fs.st_size;
data = mmap(0, data_length, PROT_READ, MAP_SHARED, fd, 0);
rc = try_jpeg(data, data_length, &width, &height);
if (rc == RC_OK)
{
printf("%dx%d\n", width, height);
return 0;
}
if (rc != RC_NEXT)
{
fprintf(stderr, "ERROR: %s\n", rc);
}
rc = try_png(data, data_length, &width, &height);
if (rc == RC_OK)
{
printf("%dx%d\n", width, height);
return 0;
}
if (rc != RC_NEXT)
{
fprintf(stderr, "ERROR: %s\n", rc);
}
fprintf(stderr, "ERROR: File format is neither jpeg nor png.\n");
return 6;
}
int decode2RGBA (FILE* srcFILE, char const* cache_dir, Image* image) {
// methods
// check FILE open status
if(!srcFILE) {
LOGD("srcFILE is null");
return 0;
}
if(try_jpeg(srcFILE, cache_dir, image)) {
LOGD("jpeg success");
return 1;
}
if (try_png(srcFILE, image)) {
LOGD("png success");
return 1;
}
return 0;
}