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| 1 /* | |
| 2 * Copyright (C) 2009 Google 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 are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #include "config.h" | |
| 32 #include "WebImage.h" | |
| 33 | |
| 34 #include "Image.h" | |
| 35 #include "ImageSource.h" | |
| 36 #include "NativeImageSkia.h" | |
| 37 #include "SharedBuffer.h" | |
| 38 | |
| 39 #include "WebData.h" | |
| 40 #include "WebSize.h" | |
| 41 | |
| 42 #include <wtf/OwnPtr.h> | |
| 43 #include <wtf/PassRefPtr.h> | |
| 44 | |
| 45 using namespace WebCore; | |
| 46 | |
| 47 namespace WebKit { | |
| 48 | |
| 49 WebImage WebImage::fromData(const WebData& data, const WebSize& desiredSize) | |
| 50 { | |
| 51 ImageSource source; | |
| 52 source.setData(PassRefPtr<SharedBuffer>(data).get(), true); | |
| 53 if (!source.isSizeAvailable()) | |
| 54 return WebImage(); | |
| 55 | |
| 56 // Frames are arranged by decreasing size, then decreasing bit depth. | |
| 57 // Pick the frame closest to |desiredSize|'s area without being smaller, | |
| 58 // which has the highest bit depth. | |
| 59 const size_t frameCount = source.frameCount(); | |
| 60 size_t index = 0; // Default to first frame if none are large enough. | |
| 61 int frameAreaAtIndex = 0; | |
| 62 for (size_t i = 0; i < frameCount; ++i) { | |
| 63 const IntSize frameSize = source.frameSizeAtIndex(i); | |
| 64 if (WebSize(frameSize) == desiredSize) { | |
| 65 index = i; | |
| 66 break; // Perfect match. | |
| 67 } | |
| 68 | |
| 69 const int frameArea = frameSize.width() * frameSize.height(); | |
| 70 if (frameArea < (desiredSize.width * desiredSize.height)) | |
| 71 break; // No more frames that are large enough. | |
| 72 | |
| 73 if (!i || (frameArea < frameAreaAtIndex)) { | |
| 74 index = i; // Closer to desired area than previous best match. | |
| 75 frameAreaAtIndex = frameArea; | |
| 76 } | |
| 77 } | |
| 78 | |
| 79 OwnPtr<NativeImageSkia> frame(source.createFrameAtIndex(index)); | |
| 80 if (!frame.get()) | |
| 81 return WebImage(); | |
| 82 | |
| 83 return WebImage(*frame); | |
| 84 } | |
| 85 | |
| 86 void WebImage::reset() | |
| 87 { | |
| 88 m_bitmap.reset(); | |
| 89 } | |
| 90 | |
| 91 void WebImage::assign(const WebImage& image) | |
| 92 { | |
| 93 m_bitmap = image.m_bitmap; | |
| 94 } | |
| 95 | |
| 96 bool WebImage::isNull() const | |
| 97 { | |
| 98 return m_bitmap.isNull(); | |
| 99 } | |
| 100 | |
| 101 WebSize WebImage::size() const | |
| 102 { | |
| 103 return WebSize(m_bitmap.width(), m_bitmap.height()); | |
| 104 } | |
| 105 | |
| 106 WebImage::WebImage(const PassRefPtr<Image>& image) | |
| 107 { | |
| 108 operator=(image); | |
| 109 } | |
| 110 | |
| 111 WebImage& WebImage::operator=(const PassRefPtr<Image>& image) | |
| 112 { | |
| 113 NativeImagePtr p; | |
| 114 if (image.get() && (p = image->nativeImageForCurrentFrame())) | |
| 115 assign(*p); | |
| 116 else | |
| 117 reset(); | |
| 118 return *this; | |
| 119 } | |
| 120 | |
| 121 } // namespace WebKit | |
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Chromium Code Reviews
Issue 385057:
Deleted webkit/api which now lives in webkit.org (Closed)
