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| 1 /* | 1 /* |
| 2 * Copyright (C) 2009 Google Inc. All rights reserved. | 2 * Copyright (C) 2009 Google 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 are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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| 38 #include "third_party/skia/include/core/SkImage.h" | 38 #include "third_party/skia/include/core/SkImage.h" |
| 39 #include "wtf/PassRefPtr.h" | 39 #include "wtf/PassRefPtr.h" |
| 40 #include "wtf/Vector.h" | 40 #include "wtf/Vector.h" |
| 41 #include <algorithm> | 41 #include <algorithm> |
| 42 #include <memory> | 42 #include <memory> |
| 43 | 43 |
| 44 namespace blink { | 44 namespace blink { |
| 45 | 45 |
| 46 WebImage WebImage::fromData(const WebData& data, const WebSize& desiredSize) { | 46 WebImage WebImage::fromData(const WebData& data, const WebSize& desiredSize) { |
| 47 RefPtr<SharedBuffer> buffer = PassRefPtr<SharedBuffer>(data); | 47 RefPtr<SharedBuffer> buffer = PassRefPtr<SharedBuffer>(data); |
| 48 std::unique_ptr<ImageDecoder> decoder( | 48 std::unique_ptr<ImageDecoder> decoder(ImageDecoder::create( |
| 49 ImageDecoder::create(buffer, true, ImageDecoder::AlphaPremultiplied, | 49 buffer, true, ImageDecoder::AlphaPremultiplied, ColorBehavior::ignore())); |
| 50 ImageDecoder::ColorSpaceIgnored, nullptr)); | |
| 51 if (!decoder || !decoder->isSizeAvailable()) | 50 if (!decoder || !decoder->isSizeAvailable()) |
| 52 return WebImage(); | 51 return WebImage(); |
| 53 | 52 |
| 54 // Frames are arranged by decreasing size, then decreasing bit depth. | 53 // Frames are arranged by decreasing size, then decreasing bit depth. |
| 55 // Pick the frame closest to |desiredSize|'s area without being smaller, | 54 // Pick the frame closest to |desiredSize|'s area without being smaller, |
| 56 // which has the highest bit depth. | 55 // which has the highest bit depth. |
| 57 const size_t frameCount = decoder->frameCount(); | 56 const size_t frameCount = decoder->frameCount(); |
| 58 size_t index = 0; // Default to first frame if none are large enough. | 57 size_t index = 0; // Default to first frame if none are large enough. |
| 59 int frameAreaAtIndex = 0; | 58 int frameAreaAtIndex = 0; |
| 60 for (size_t i = 0; i < frameCount; ++i) { | 59 for (size_t i = 0; i < frameCount; ++i) { |
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| 77 ImageFrame* frame = decoder->frameBufferAtIndex(index); | 76 ImageFrame* frame = decoder->frameBufferAtIndex(index); |
| 78 return (frame && !decoder->failed()) ? WebImage(frame->bitmap()) : WebImage(); | 77 return (frame && !decoder->failed()) ? WebImage(frame->bitmap()) : WebImage(); |
| 79 } | 78 } |
| 80 | 79 |
| 81 WebVector<WebImage> WebImage::framesFromData(const WebData& data) { | 80 WebVector<WebImage> WebImage::framesFromData(const WebData& data) { |
| 82 // This is to protect from malicious images. It should be big enough that it's | 81 // This is to protect from malicious images. It should be big enough that it's |
| 83 // never hit in practice. | 82 // never hit in practice. |
| 84 const size_t maxFrameCount = 8; | 83 const size_t maxFrameCount = 8; |
| 85 | 84 |
| 86 RefPtr<SharedBuffer> buffer = PassRefPtr<SharedBuffer>(data); | 85 RefPtr<SharedBuffer> buffer = PassRefPtr<SharedBuffer>(data); |
| 87 std::unique_ptr<ImageDecoder> decoder( | 86 std::unique_ptr<ImageDecoder> decoder(ImageDecoder::create( |
| 88 ImageDecoder::create(buffer, true, ImageDecoder::AlphaPremultiplied, | 87 buffer, true, ImageDecoder::AlphaPremultiplied, ColorBehavior::ignore())); |
| 89 ImageDecoder::ColorSpaceIgnored, nullptr)); | |
| 90 if (!decoder || !decoder->isSizeAvailable()) | 88 if (!decoder || !decoder->isSizeAvailable()) |
| 91 return WebVector<WebImage>(); | 89 return WebVector<WebImage>(); |
| 92 | 90 |
| 93 // Frames are arranged by decreasing size, then decreasing bit depth. | 91 // Frames are arranged by decreasing size, then decreasing bit depth. |
| 94 // Keep the first frame at every size, has the highest bit depth. | 92 // Keep the first frame at every size, has the highest bit depth. |
| 95 const size_t frameCount = decoder->frameCount(); | 93 const size_t frameCount = decoder->frameCount(); |
| 96 IntSize lastSize; | 94 IntSize lastSize; |
| 97 | 95 |
| 98 Vector<WebImage> frames; | 96 Vector<WebImage> frames; |
| 99 for (size_t i = 0; i < std::min(frameCount, maxFrameCount); ++i) { | 97 for (size_t i = 0; i < std::min(frameCount, maxFrameCount); ++i) { |
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| 132 | 130 |
| 133 WebImage::WebImage(PassRefPtr<Image> image) { | 131 WebImage::WebImage(PassRefPtr<Image> image) { |
| 134 if (!image) | 132 if (!image) |
| 135 return; | 133 return; |
| 136 | 134 |
| 137 if (sk_sp<SkImage> skImage = image->imageForCurrentFrame()) | 135 if (sk_sp<SkImage> skImage = image->imageForCurrentFrame()) |
| 138 skImage->asLegacyBitmap(&m_bitmap, SkImage::kRO_LegacyBitmapMode); | 136 skImage->asLegacyBitmap(&m_bitmap, SkImage::kRO_LegacyBitmapMode); |
| 139 } | 137 } |
| 140 | 138 |
| 141 } // namespace blink | 139 } // namespace blink |
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