OLD | NEW |
(Empty) | |
| 1 /* |
| 2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. |
| 3 * |
| 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions |
| 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the |
| 11 * documentation and/or other materials provided with the distribution. |
| 12 * |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 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. |
| 24 */ |
| 25 |
| 26 |
| 27 #include "platform/image-decoders/SegmentReader.h" |
| 28 #include "platform/image-decoders/png/PNGImageDecoder.h" |
| 29 #include "platform/PlatformExport.h" |
| 30 #include "png.h" |
| 31 #include "wtf/Allocator.h" |
| 32 #include "wtf/PtrUtil.h" |
| 33 |
| 34 #ifndef PNGImageReader_h |
| 35 #define PNGImageReader_h |
| 36 |
| 37 namespace blink { |
| 38 |
| 39 class PLATFORM_EXPORT PNGImageReader final { |
| 40 USING_FAST_MALLOC(PNGImageReader); |
| 41 WTF_MAKE_NONCOPYABLE(PNGImageReader); |
| 42 public: |
| 43 PNGImageReader(PNGImageDecoder*, size_t readOffset); |
| 44 ~PNGImageReader(); |
| 45 |
| 46 bool parse(const SegmentReader&, PNGImageDecoder::PNGParseQuery); |
| 47 bool readChunk(const char* tag, const void* dataChunk, size_t length); |
| 48 |
| 49 png_structp pngPtr() const { return m_png; } |
| 50 png_infop infoPtr() const { return m_info; } |
| 51 |
| 52 size_t getReadOffset() const { return m_readOffset; } |
| 53 void setReadOffset(size_t offset) { m_readOffset = offset; } |
| 54 size_t currentBufferSize() const { return m_currentBufferSize; } |
| 55 bool decodingSizeOnly() const { return m_decodingSizeOnly; } |
| 56 void setHasAlpha(bool hasAlpha) { m_hasAlpha = hasAlpha; } |
| 57 bool hasAlpha() const { return m_hasAlpha; } |
| 58 |
| 59 png_bytep interlaceBuffer() const { return m_interlaceBuffer.get(); } |
| 60 void createInterlaceBuffer(int size) { m_interlaceBuffer = wrapArrayUnique(n
ew png_byte[size]); } |
| 61 #if USE(QCMSLIB) |
| 62 png_bytep rowBuffer() const { return m_rowBuffer.get(); } |
| 63 void createRowBuffer(int size) { m_rowBuffer = wrapArrayUnique(new png_byte[
size]); } |
| 64 #endif |
| 65 |
| 66 |
| 67 private: |
| 68 png_structp m_png; |
| 69 png_infop m_info; |
| 70 PNGImageDecoder* m_decoder; |
| 71 size_t m_readOffset; |
| 72 size_t m_currentBufferSize; |
| 73 bool m_decodingSizeOnly; |
| 74 bool m_hasAlpha; |
| 75 std::unique_ptr<png_byte[]> m_interlaceBuffer; |
| 76 |
| 77 inline bool readAnimationControl(const png_byte* data); |
| 78 |
| 79 #if USE(QCMSLIB) |
| 80 std::unique_ptr<png_byte[]> m_rowBuffer; |
| 81 #endif |
| 82 }; |
| 83 |
| 84 }; |
| 85 |
| 86 #endif |
OLD | NEW |