nsJXLDecoder.h (1469B)
1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- 2 * 3 * This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef mozilla_image_decoders_nsJXLDecoder_h 8 #define mozilla_image_decoders_nsJXLDecoder_h 9 10 #include "Decoder.h" 11 #include "mp4parse.h" 12 #include "SurfacePipe.h" 13 14 #include "jxl/decode_cxx.h" 15 #include "jxl/thread_parallel_runner_cxx.h" 16 17 namespace mozilla::image { 18 class RasterImage; 19 20 class nsJXLDecoder final : public Decoder { 21 public: 22 virtual ~nsJXLDecoder(); 23 24 DecoderType GetType() const override { return DecoderType::JXL; } 25 26 protected: 27 LexerResult DoDecode(SourceBufferIterator& aIterator, 28 IResumable* aOnResume) override; 29 30 private: 31 friend class DecoderFactory; 32 33 // Decoders should only be instantiated via DecoderFactory. 34 explicit nsJXLDecoder(RasterImage* aImage); 35 36 size_t PreferredThreadCount(); 37 38 enum class State { JXL_DATA, FINISHED_JXL_DATA }; 39 40 LexerTransition<State> ReadJXLData(const char* aData, size_t aLength); 41 LexerTransition<State> FinishedJXLData(); 42 43 StreamingLexer<State> mLexer; 44 JxlDecoderPtr mDecoder; 45 JxlThreadParallelRunnerPtr mParallelRunner; 46 Vector<uint8_t> mBuffer; 47 Vector<uint8_t> mOutBuffer; 48 JxlBasicInfo mInfo{}; 49 }; 50 51 } // namespace mozilla::image 52 53 #endif // mozilla_image_decoders_nsJXLDecoder_h