Method IsJpeg

src/core/codecs/jpeg/JpegCodec.cpp:35–38

namespace tgfx {

bool JpegCodec::IsJpeg(const std::shared_ptr<Data>& data) {
  constexpr uint8_t jpegSig[] = {0xFF, 0xD8, 0xFF};
  return data->size() >= 3 && !memcmp(data->bytes(), jpegSig, sizeof(jpegSig));
}

const uint32_t kExifHeaderSize = 14;
const uint32_t kExifMarker = JPEG_APP0 + 1;