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-rw-r--r--image/decoders/nsJXLDecoder.h55
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diff --git a/image/decoders/nsJXLDecoder.h b/image/decoders/nsJXLDecoder.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_image_decoders_nsJXLDecoder_h
+#define mozilla_image_decoders_nsJXLDecoder_h
+
+#include "Decoder.h"
+#include "mp4parse.h"
+#include "SurfacePipe.h"
+
+#include "jxl/decode_cxx.h"
+#include "jxl/thread_parallel_runner_cxx.h"
+
+#include "mozilla/Telemetry.h"
+
+namespace mozilla::image {
+class RasterImage;
+
+class nsJXLDecoder final : public Decoder {
+ public:
+ virtual ~nsJXLDecoder();
+
+ DecoderType GetType() const override { return DecoderType::JXL; }
+
+ protected:
+ LexerResult DoDecode(SourceBufferIterator& aIterator,
+ IResumable* aOnResume) override;
+
+ private:
+ friend class DecoderFactory;
+
+ // Decoders should only be instantiated via DecoderFactory.
+ explicit nsJXLDecoder(RasterImage* aImage);
+
+ size_t PreferredThreadCount();
+
+ enum class State { JXL_DATA, FINISHED_JXL_DATA };
+
+ LexerTransition<State> ReadJXLData(const char* aData, size_t aLength);
+ LexerTransition<State> FinishedJXLData();
+
+ StreamingLexer<State> mLexer;
+ JxlDecoderPtr mDecoder;
+ JxlThreadParallelRunnerPtr mParallelRunner;
+ Vector<uint8_t> mBuffer;
+ Vector<uint8_t> mOutBuffer;
+ JxlBasicInfo mInfo{};
+};
+
+} // namespace mozilla::image
+
+#endif // mozilla_image_decoders_nsJXLDecoder_h