1 /* 2 * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #pragma once 27 28 #include "ImageDecoder.h" 29 #include "ImageSource.h" 30 #include "IntSize.h" 31 #include "SharedBuffer.h" 32 #include "RQRef.h" 33 #include <wtf/Optional.h> 34 35 #include <jni.h> 36 37 namespace WebCore { 38 39 class ImageDecoderJava : public ImageDecoder { 40 WTF_MAKE_FAST_ALLOCATED; 41 public: 42 ImageDecoderJava(); 43 ~ImageDecoderJava(); 44 45 static bool supportsMediaType(MediaType type) { return type == MediaType::Image; } 46 47 static Ref<ImageDecoder> create(const SharedBuffer&, AlphaOption, GammaAndColorProfileOption) 48 { 49 return adoptRef(*new ImageDecoderJava()); 50 } 51 52 size_t bytesDecodedToDetermineProperties() const final; 53 54 String filenameExtension() const final; 55 bool isSizeAvailable() const final; 56 57 EncodedDataStatus encodedDataStatus() const final; 58 // Always original size, without subsampling. 59 IntSize size() const final; 60 size_t frameCount() const final; 61 62 RepetitionCount repetitionCount() const final; 63 std::optional<IntPoint> hotSpot() const final; 64 65 IntSize frameSizeAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default) const final; 66 bool frameIsCompleteAtIndex(size_t) const final; 67 ImageOrientation frameOrientationAtIndex(size_t) const final; 68 69 WTF::Seconds frameDurationAtIndex(size_t) const final; 70 bool frameHasAlphaAtIndex(size_t) const final; 71 bool frameAllowSubsamplingAtIndex(size_t) const final; 72 unsigned frameBytesAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default) const final; 73 74 NativeImagePtr createFrameImageAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default, const DecodingOptions& = DecodingOptions(DecodingMode::Synchronous)) final; 75 76 void setData(SharedBuffer&, bool allDataReceived) final; 77 bool isAllDataReceived() const final { return m_isAllDataReceived;} 78 void clearFrameBufferCache(size_t) final { } 79 80 JLObject nativeDecoder() const { return m_nativeDecoder; } 81 82 protected: 83 bool m_isAllDataReceived { false }; 84 size_t m_receivedDataSize { 0 }; 85 mutable EncodedDataStatus m_encodedDataStatus { EncodedDataStatus::Unknown }; 86 // Native Handle for Java object. 87 JGObject m_nativeDecoder; 88 mutable IntSize m_size; 89 }; 90 91 } // namespace WebCore