bool GraphicsContext3D::ImageExtractor::extractImage(bool premultiplyAlpha, bool)
{
if (!m_image)
return false;
NativeImagePtr nativeImage = m_image->nativeImageForCurrentFrame();
if (!nativeImage)
return false;
m_imageWidth = nativeImage->width();
m_imageHeight = nativeImage->height();
if (!m_imageWidth || !m_imageHeight)
return false;
unsigned imageSize = m_imageWidth * m_imageHeight;
m_imageData.resize(imageSize);
if (!nativeImage->readPixels(m_imageData.data(), imageSize))
return false;
// Raw image data is premultiplied
m_alphaOp = AlphaDoNothing;
if (!premultiplyAlpha)
m_alphaOp = AlphaDoUnmultiply;
m_imagePixelData = m_imageData.data();
m_imageSourceFormat = DataFormatBGRA8;
m_imageSourceUnpackAlignment = 0;
return true;
}
static void loadBufferingImageData()
{
static bool loaded = false;
if (!loaded) {
static Image* bufferingIcon = Image::loadPlatformResource("vidbuffer").leakRef();
NativeImagePtr nativeImage = bufferingIcon->nativeImageForCurrentFrame();
if (!nativeImage)
return;
loaded = true;
s_bufferingImageWidth = bufferingIcon->width();
s_bufferingImageHeight = bufferingIcon->height();
int bufSize = bufferingIcon->decodedSize();
s_bufferingImageData = static_cast<unsigned*>(malloc(bufSize));
nativeImage->readPixels(s_bufferingImageData, s_bufferingImageWidth * s_bufferingImageHeight);
bufferingIcon->deref();
}
}