void CanvasAsyncBlobCreator::encodeImageOnEncoderThread(double quality)
{
ASSERT(!isMainThread());
bool success;
if (m_mimeType == "image/jpeg") {
success = JPEGImageEncoder::encodeWithPreInitializedState(m_jpegEncoderState.release(), m_data->data());
} else {
success = ImageDataBuffer(m_size, m_data->data()).encodeImage(m_mimeType, quality, m_encodedImage.get());
}
if (!success) {
scheduleCreateNullptrAndCallOnMainThread();
return;
}
scheduleCreateBlobAndCallOnMainThread();
}
String HTMLCanvasElement::toDataURLInternal(const String& mimeType, const double* quality, bool isSaving) const
{
if (m_size.isEmpty() || !buffer())
return String("data:,");
String encodingMimeType = toEncodingMimeType(mimeType);
// Try to get ImageData first, as that may avoid lossy conversions.
RefPtr<ImageData> imageData = getImageData();
if (imageData)
return ImageDataToDataURL(ImageDataBuffer(imageData->size(), imageData->data()), encodingMimeType, quality);
if (m_context && m_context->is3d()) {
toWebGLRenderingContext(m_context.get())->setSavingImage(isSaving);
m_context->paintRenderingResultsToCanvas();
toWebGLRenderingContext(m_context.get())->setSavingImage(false);
}
return buffer()->toDataURL(encodingMimeType, quality);
}