Method cache

src/cinder/gl/Texture.cpp:1583–1606

}

gl::TextureRef Texture2dCache::cache( const Surface8u &originalData )
{
	const Surface8u &surfaceData = ( mIntermediateSurface ) ? *mIntermediateSurface : originalData;
	// If mIntermediateSurface isn't null then we need to use that instead.
	// This is to accommodate rowBytes values which aren't the same as width * bytesPerPixel
	if( mIntermediateSurface )
		mIntermediateSurface->copyFrom( originalData, originalData.getBounds() );

	// find an available slot and update that if possible
	for( vector<pair<int,TextureRef>>::iterator texIt = mTextures.begin(); texIt != mTextures.end(); ++texIt ) {
		if( texIt->first == -1 ) { // this texture is available, let's use it!
			texIt->second->update( surfaceData );
			texIt->first = mNextId++;
			// normally this would be very wrong, but when the result TextureRef is destroyed, it calls markTextureAsFree rather than deleting the master texture
			return TextureRef( texIt->second.get(), std::bind( &Texture2dCache::markTextureAsFree, shared_from_this(), texIt->first ) );
		}
	}

	// we didn't find an available slot, so let's make a new texture
	TextureRef masterTex( new Texture( surfaceData, mFormat ) );
	mTextures.push_back( make_pair( mNextId++, masterTex ) );
	// normally this would be very wrong, but when the result TextureRef is destroyed, it calls markTextureAsFree rather than deleting the master texture
	return TextureRef( mTextures.back().second.get(), std::bind( &Texture2dCache::markTextureAsFree, shared_from_this(), mTextures.back().first ) );
}

void Texture2dCache::markTextureAsFree( int id )
{