Method MakeFrom

src/core/ImageSource.cpp:22–38

namespace tgfx {
std::unique_ptr<DataSource<ImageBuffer>> ImageSource::MakeFrom(
    std::shared_ptr<ImageGenerator> generator, bool tryHardware, bool asyncDecoding) {
  if (generator == nullptr) {
    return nullptr;
  }
  if (asyncDecoding && !generator->asyncSupport()) {
    // The generator may have built-in async decoding support which will not block the main thread.
    // Therefore, we should trigger the decoding ASAP.
    auto buffer = generator->makeBuffer(tryHardware);
    return Wrap(std::move(buffer));
  }
  auto imageSource = std::make_unique<ImageSource>(std::move(generator), tryHardware);
  if (asyncDecoding) {
    return Async(std::move(imageSource));
  }
  return imageSource;
}

ImageSource::ImageSource(std::shared_ptr<ImageGenerator> generator, bool tryHardware)
    : generator(std::move(generator)), tryHardware(tryHardware) {