1 /* 2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. 3 * Copyright (C) 2008, 2009 Google, Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include "config.h" 28 #include "ImageDecoder.h" 29 #if PLATFORM(ANDROID) 30 #include "SkBitmapRef.h" 31 #endif 32 33 #include "NotImplemented.h" 34 35 namespace WebCore { 36 37 ImageFrame::ImageFrame() 38 : m_status(FrameEmpty) 39 , m_duration(0) 40 , m_disposalMethod(DisposeNotSpecified) 41 , m_premultiplyAlpha(true) 42 { 43 } 44 45 ImageFrame& ImageFrame::operator=(const ImageFrame& other) 46 { 47 if (this == &other) 48 return *this; 49 50 m_bitmap = other.m_bitmap; 51 // Keep the pixels locked since we will be writing directly into the 52 // bitmap throughout this object's lifetime. 53 m_bitmap.lockPixels(); 54 setOriginalFrameRect(other.originalFrameRect()); 55 setStatus(other.status()); 56 setDuration(other.duration()); 57 setDisposalMethod(other.disposalMethod()); 58 setPremultiplyAlpha(other.premultiplyAlpha()); 59 return *this; 60 } 61 62 void ImageFrame::clearPixelData() 63 { 64 m_bitmap.reset(); 65 m_status = FrameEmpty; 66 // NOTE: Do not reset other members here; clearFrameBufferCache() 67 // calls this to free the bitmap data, but other functions like 68 // initFrameBuffer() and frameComplete() may still need to read 69 // other metadata out of this frame later. 70 } 71 72 void ImageFrame::zeroFillPixelData() 73 { 74 m_bitmap.eraseARGB(0, 0, 0, 0); 75 } 76 77 bool ImageFrame::copyBitmapData(const ImageFrame& other) 78 { 79 if (this == &other) 80 return true; 81 82 m_bitmap.reset(); 83 const NativeImageSkia& otherBitmap = other.m_bitmap; 84 return otherBitmap.copyTo(&m_bitmap, otherBitmap.config()); 85 } 86 87 bool ImageFrame::setSize(int newWidth, int newHeight) 88 { 89 // This function should only be called once, it will leak memory 90 // otherwise. 91 ASSERT(width() == 0 && height() == 0); 92 m_bitmap.setConfig(SkBitmap::kARGB_8888_Config, newWidth, newHeight); 93 if (!m_bitmap.allocPixels()) 94 return false; 95 96 zeroFillPixelData(); 97 98 return true; 99 } 100 101 NativeImagePtr ImageFrame::asNewNativeImage() const 102 { 103 #if PLATFORM(ANDROID) 104 return new SkBitmapRef(m_bitmap); 105 #else 106 return new NativeImageSkia(m_bitmap); 107 #endif 108 } 109 110 bool ImageFrame::hasAlpha() const 111 { 112 return !m_bitmap.isOpaque(); 113 } 114 115 void ImageFrame::setHasAlpha(bool alpha) 116 { 117 m_bitmap.setIsOpaque(!alpha); 118 } 119 120 void ImageFrame::setColorProfile(const ColorProfile& colorProfile) 121 { 122 notImplemented(); 123 } 124 125 void ImageFrame::setStatus(FrameStatus status) 126 { 127 m_status = status; 128 if (m_status == FrameComplete) 129 m_bitmap.setDataComplete(); // Tell the bitmap it's done. 130 } 131 132 int ImageFrame::width() const 133 { 134 return m_bitmap.width(); 135 } 136 137 int ImageFrame::height() const 138 { 139 return m_bitmap.height(); 140 } 141 142 } // namespace WebCore 143