ISurface* DFBImageProvider::prepare(bool isGif) {
ISurface* renderedSurface = NULL;
IDirectFBImageProvider* ip;
ip = (IDirectFBImageProvider*)decoder;
DFBImageDescription imgDsc;
IDirectFBSurface* destination = NULL;
DFBSurfaceDescription surDsc;
IColor* chromaKey = NULL;
//IDirectFBSurface* source;
if ((ip->GetImageDescription(ip, &imgDsc) == DFB_OK) &&
(ip->GetSurfaceDescription(ip, &surDsc) == DFB_OK)) {
destination = (IDirectFBSurface*)(
LocalDeviceManager::getInstance()->createSurface(&surDsc));
renderedSurface = new DFBSurface(destination);
if (imgDsc.caps & DICAPS_ALPHACHANNEL) {
/*cout << "ImagePlayer::ImagePlayer(" << mrl << ")";
cout << " setted alphachannel: ";*/
//alpha channel of gif does not exists anymore, it turn into
//black src color key (marcio 20/04/2007)
if (isGif) {
chromaKey = new Color(0, 0, 0);
renderedSurface->setChromaColor(chromaKey);
//outputDisplay->setColorKey(0, 0, 0);
//cout << "black color cause it is a gif image" << endl;
} else {
renderedSurface->setCaps(DWCAPS_ALPHACHANNEL);
}
//cout << " trying to blit image alpha channel" << endl;
DFBCHECK(destination->SetBlittingFlags(destination,
(DFBSurfaceBlittingFlags)(DSBLIT_BLEND_ALPHACHANNEL)));
/*cout << "ImagePlayer::ImagePlayer(" << mrl << ")";
cout << " setted alpha: '";
cout << (((int)(imgDsc.colorkey_r & 0xFF)) & 0xFF);
cout << ", " << (((int)(imgDsc.colorkey_g)) & 0xFF);
cout << ", " << (((int)(imgDsc.colorkey_b)) & 0xFF);
cout << "'" << endl;*/
}
if (imgDsc.caps & DICAPS_COLORKEY) {
chromaKey = new Color(
imgDsc.colorkey_r,
imgDsc.colorkey_g,
imgDsc.colorkey_b);
DFBCHECK(destination->SetBlittingFlags(destination,
(DFBSurfaceBlittingFlags)(
DSBLIT_BLEND_ALPHACHANNEL |
DSBLIT_SRC_COLORKEY)));
renderedSurface->setChromaColor(chromaKey);
/*cout << "ImagePlayer::ImagePlayer(" << mrl << ")";
cout << " setted colorkey: '";
cout << (((int)(imgDsc.colorkey_r & 0xFF)) & 0xFF);
cout << ", " << (((int)(imgDsc.colorkey_g)) & 0xFF);
cout << ", " << (((int)(imgDsc.colorkey_b)) & 0xFF);
cout << "'" << endl;*/
}
if (imgDsc.caps & DICAPS_NONE) {
DFBCHECK(destination->SetBlittingFlags(destination,
(DFBSurfaceBlittingFlags)DSBLIT_NOFX));
renderedSurface->setCaps(DWCAPS_NONE);
/*cout << "ImagePlayer::ImagePlayer(" << mrl << ")";
cout << " NOFX" << endl;*/
}
}
if (destination != NULL && renderedSurface != NULL) {
DFBCHECK(ip->RenderTo(
ip,
(IDirectFBSurface*)(renderedSurface->getContent()), NULL));
}
return renderedSurface;
}
