Method processChunk

src/fl/codec/jpeg.cpp.hpp:159–198

    }

    bool processChunk() {
        if (mState == JpegDecoder::State::Error || mState == JpegDecoder::State::Complete) {
            return false;
        }

        if (mState == JpegDecoder::State::NotStarted || mState == JpegDecoder::State::HeaderParsed) {
            mState = JpegDecoder::State::Decoding;
        }

        if (!mDriver) {
            setError("Driver not available");
            return false;
        }

        bool more_work = mDriver->processChunk();

        auto mDriverstate = mDriver->getState();
        switch (mDriverstate) {
            case fl::third_party::TJpgInstanceDecoder::State::NotStarted:
            case fl::third_party::TJpgInstanceDecoder::State::HeaderParsed:
            case fl::third_party::TJpgInstanceDecoder::State::Decoding:
                mProgress = mDriver->getProgress();
                break;
            case fl::third_party::TJpgInstanceDecoder::State::Complete:
                mState = JpegDecoder::State::Complete;
                mProgress = 1.0f;
                return false;
            case fl::third_party::TJpgInstanceDecoder::State::Error: {
                fl::string err;
                if (mDriver->hasError(&err)) {
                    setError(err);
                } else {
                    setError("JPEG decoding failed");
                }
                return false;
            }
        }

        return more_work;
    }

    float getProgress() const { return mProgress; }
    bool hasPartialImage() const { return mDriver ? mDriver->hasPartialImage() : false; }