bool MacResExtractor::extractResource(int id, CachedCursor *cc) {
// Create the MacResManager if not created already
if (_resMgr == NULL) {
_resMgr = new Common::MacResManager();
if (!_resMgr->open(_vm->generateFilename(-3)))
error("Cannot open file %s", _fileName.c_str());
}
Common::SeekableReadStream *dataStream = _resMgr->getResource('crsr', id + 1000);
if (!dataStream)
return false;
// If we don't have a cursor palette, force monochrome cursors
bool forceMonochrome = !_vm->_system->hasFeature(OSystem::kFeatureCursorPalette);
Graphics::MacCursor *macCursor = new Graphics::MacCursor();
if (!macCursor->readFromStream(*dataStream, forceMonochrome)) {
delete dataStream;
delete macCursor;
return false;
}
cc->bitmap = new byte[macCursor->getWidth() * macCursor->getHeight()];
cc->width = macCursor->getWidth();
cc->height = macCursor->getHeight();
cc->hotspotX = macCursor->getHotspotX();
cc->hotspotY = macCursor->getHotspotY();
if (forceMonochrome) {
// Convert to the SCUMM palette
const byte *srcBitmap = macCursor->getSurface();
for (int i = 0; i < macCursor->getWidth() * macCursor->getHeight(); i++) {
if (srcBitmap[i] == macCursor->getKeyColor()) // Transparent
cc->bitmap[i] = 255;
else if (srcBitmap[i] == 0) // Black
cc->bitmap[i] = 253;
else // White
cc->bitmap[i] = 254;
}
} else {
// Copy data and palette
// Sanity check. This code assumes that the key color is the same
assert(macCursor->getKeyColor() == 255);
memcpy(cc->bitmap, macCursor->getSurface(), macCursor->getWidth() * macCursor->getHeight());
cc->palette = new byte[256 * 3];
cc->palSize = 256;
memcpy(cc->palette, macCursor->getPalette(), 256 * 3);
}
delete macCursor;
delete dataStream;
return true;
}
void CursorManager::setMacCursor(Common::SeekableReadStream *stream) {
assert(stream);
Graphics::MacCursor *macCursor = new Graphics::MacCursor();
if (!macCursor->readFromStream(*stream))
error("Could not parse Mac cursor");
CursorMan.replaceCursor(macCursor->getSurface(), macCursor->getWidth(), macCursor->getHeight(),
macCursor->getHotspotX(), macCursor->getHotspotY(), macCursor->getKeyColor());
CursorMan.replaceCursorPalette(macCursor->getPalette(), 0, 256);
delete macCursor;
delete stream;
}