PsdStatus PsdFile::readImageResources()
{
if (!mResourcesBlock.mAddress)
return PsdStatusNoInit;
if (mResourcesBlock.mLength == 0)
return PsdStatusOK;
const uint8_t *ptr = mResourcesBlock.mAddress, *end = mResourcesBlock.getEndAddress();
if (end > mMapped.get().getEndAddress())
return PsdStatusFileOutOfRange;
mResources.reset(new map<uint16_t, shared_ptr<PsdResource> >);
uint32_t size;
uint16_t id;
end -= 8;
while (ptr < end && CHECK_FOUR_CHAR(ptr, '8', 'B', 'I', 'M')) {
ptr += 4;
id = PsdUtils::fetch16(ptr);
ptr += 2;
string name = PsdUtils::fetchPascalString(ptr);
ptr += PAD2(name.size() + 1);
size = PsdUtils::fetch32(ptr);
ptr += 4;
(*mResources)[id] = shared_ptr<PsdResource>(new PsdResource(id, name, ptr, size));
ptr += PAD2(size);
LOG_DEBUG("[RES] %u (%s) %u\n", id, name.c_str(), size);
}
return PsdStatusOK;
}
static long doirb(psd_file_t f){
static struct dictentry resource = {0, NULL, "RESOURCE", "dummy", NULL};
char type[4], name[0x100];
int id, namelen;
long size;
size_t padded_size;
struct dictentry *d;
fread(type, 1, 4, f);
id = get2B(f);
namelen = fgetc(f);
fread(name, 1, PAD2(1+namelen)-1, f);
name[namelen] = 0;
size = get4B(f);
padded_size = PAD2(size);
d = findbyid(id);
if((verbose || print_rsrc || resdump) && !xmlout){
printf(" resource '%c%c%c%c' (%5d,\"%s\"):%5ld bytes",
type[0],type[1],type[2],type[3], id, name, size);
if(d)
printf(" [%s]", d->desc);
putchar('\n');
}
if(d && d->tag){
if(xml){
fprintf(xml, "\t<RESOURCE TYPE='%c%c%c%c' ID='%d'",
type[0],type[1],type[2],type[3], id);
if(namelen)
fprintf(xml, " NAME='%s'", name);
}
if(d->func){
if(xml) fputs(">\n", xml);
entertag(f, 2, size, &resource, d, 1);
if(xml) fputs("\t</RESOURCE>\n\n", xml);
}
else if(xml){
fputs(" /> <!-- not parsed -->\n", xml);
}
}
if(resdump){
char *temp_buf = checkmalloc(padded_size);
if(fread(temp_buf, 1, padded_size, f) < padded_size)
fatal("did not read expected bytes in image resource\n");
dumphex((unsigned char*)temp_buf, size);
putchar('\n');
free(temp_buf);
}
else
fseeko(f, padded_size, SEEK_CUR); // skip resource block data
return 4+2+PAD2(1+namelen)+4+padded_size; /* returns total bytes in block */
}
int is_resource(unsigned char *addr, size_t len, size_t offset)
{
int namelen;
long size;
if(KEYMATCH(addr + offset, "8BIM")){
offset += 4; // type
offset += 2; // id
namelen = addr[offset];
offset += PAD2(1+namelen);
size = peek4B(addr+offset);
offset += 4;
offset += PAD2(size); // skip resource block data
return offset; // should be offset of next resource
}
return 0;
}
