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| 1 /* | 1 /* |
| 2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. | 2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
| 11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
| 12 * | 12 * |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 24 */ | 24 */ |
| 25 | 25 |
| 26 #ifndef JPEGImageDecoder_h | 26 #ifndef JPEGImageDecoder_h |
| 27 #define JPEGImageDecoder_h | 27 #define JPEGImageDecoder_h |
| 28 | 28 |
| 29 #include "platform/image-decoders/ImageDecoder.h" | 29 #include "platform/image-decoders/ImageDecoder.h" |
| 30 #include <memory> |
| 30 | 31 |
| 31 namespace blink { | 32 namespace blink { |
| 32 | 33 |
| 33 class JPEGImageReader; | 34 class JPEGImageReader; |
| 34 | 35 |
| 35 class PLATFORM_EXPORT JPEGImageDecoder final : public ImageDecoder { | 36 class PLATFORM_EXPORT JPEGImageDecoder final : public ImageDecoder { |
| 36 WTF_MAKE_NONCOPYABLE(JPEGImageDecoder); | 37 WTF_MAKE_NONCOPYABLE(JPEGImageDecoder); |
| 37 public: | 38 public: |
| 38 JPEGImageDecoder(AlphaOption, GammaAndColorProfileOption, size_t maxDecodedB
ytes); | 39 JPEGImageDecoder(AlphaOption, GammaAndColorProfileOption, size_t maxDecodedB
ytes); |
| 39 ~JPEGImageDecoder() override; | 40 ~JPEGImageDecoder() override; |
| 40 | 41 |
| 41 // ImageDecoder: | 42 // ImageDecoder: |
| 42 String filenameExtension() const override { return "jpg"; } | 43 String filenameExtension() const override { return "jpg"; } |
| 43 void onSetData(SegmentReader* data) override; | 44 void onSetData(SegmentReader* data) override; |
| 44 IntSize decodedSize() const override { return m_decodedSize; } | 45 IntSize decodedSize() const override { return m_decodedSize; } |
| 45 bool setSize(unsigned width, unsigned height) override; | 46 bool setSize(unsigned width, unsigned height) override; |
| 46 IntSize decodedYUVSize(int component) const override; | 47 IntSize decodedYUVSize(int component) const override; |
| 47 size_t decodedYUVWidthBytes(int component) const override; | 48 size_t decodedYUVWidthBytes(int component) const override; |
| 48 bool canDecodeToYUV() override; | 49 bool canDecodeToYUV() override; |
| 49 bool decodeToYUV() override; | 50 bool decodeToYUV() override; |
| 50 void setImagePlanes(PassOwnPtr<ImagePlanes>) override; | 51 void setImagePlanes(std::unique_ptr<ImagePlanes>) override; |
| 51 bool hasImagePlanes() const { return m_imagePlanes.get(); } | 52 bool hasImagePlanes() const { return m_imagePlanes.get(); } |
| 52 | 53 |
| 53 bool outputScanlines(); | 54 bool outputScanlines(); |
| 54 unsigned desiredScaleNumerator() const; | 55 unsigned desiredScaleNumerator() const; |
| 55 void complete(); | 56 void complete(); |
| 56 | 57 |
| 57 void setOrientation(ImageOrientation orientation) { m_orientation = orientat
ion; } | 58 void setOrientation(ImageOrientation orientation) { m_orientation = orientat
ion; } |
| 58 void setDecodedSize(unsigned width, unsigned height); | 59 void setDecodedSize(unsigned width, unsigned height); |
| 59 | 60 |
| 60 private: | 61 private: |
| 61 // ImageDecoder: | 62 // ImageDecoder: |
| 62 void decodeSize() override { decode(true); } | 63 void decodeSize() override { decode(true); } |
| 63 void decode(size_t) override { decode(false); } | 64 void decode(size_t) override { decode(false); } |
| 64 | 65 |
| 65 // Decodes the image. If |onlySize| is true, stops decoding after | 66 // Decodes the image. If |onlySize| is true, stops decoding after |
| 66 // calculating the image size. If decoding fails but there is no more | 67 // calculating the image size. If decoding fails but there is no more |
| 67 // data coming, sets the "decode failure" flag. | 68 // data coming, sets the "decode failure" flag. |
| 68 void decode(bool onlySize); | 69 void decode(bool onlySize); |
| 69 | 70 |
| 70 OwnPtr<JPEGImageReader> m_reader; | 71 std::unique_ptr<JPEGImageReader> m_reader; |
| 71 OwnPtr<ImagePlanes> m_imagePlanes; | 72 std::unique_ptr<ImagePlanes> m_imagePlanes; |
| 72 IntSize m_decodedSize; | 73 IntSize m_decodedSize; |
| 73 }; | 74 }; |
| 74 | 75 |
| 75 } // namespace blink | 76 } // namespace blink |
| 76 | 77 |
| 77 #endif | 78 #endif |
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