| OLD | NEW |
| (Empty) |
| 1 // Copyright 2010 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "config.h" | |
| 6 | |
| 7 #if USE(ACCELERATED_COMPOSITING) | |
| 8 | |
| 9 #include "ImageLayerChromium.h" | |
| 10 | |
| 11 #include "base/compiler_specific.h" | |
| 12 #include "CCLayerTreeHost.h" | |
| 13 #include "LayerTextureUpdater.h" | |
| 14 #include "PlatformColor.h" | |
| 15 | |
| 16 namespace cc { | |
| 17 | |
| 18 class ImageLayerTextureUpdater : public LayerTextureUpdater { | |
| 19 public: | |
| 20 class Texture : public LayerTextureUpdater::Texture { | |
| 21 public: | |
| 22 Texture(ImageLayerTextureUpdater* textureUpdater, scoped_ptr<CCPrioritiz
edTexture> texture) | |
| 23 : LayerTextureUpdater::Texture(texture.Pass()) | |
| 24 , m_textureUpdater(textureUpdater) | |
| 25 { | |
| 26 } | |
| 27 | |
| 28 virtual void updateRect(CCResourceProvider* resourceProvider, const IntR
ect& sourceRect, const IntSize& destOffset) OVERRIDE | |
| 29 { | |
| 30 textureUpdater()->updateTextureRect(resourceProvider, texture(), sou
rceRect, destOffset); | |
| 31 } | |
| 32 | |
| 33 private: | |
| 34 ImageLayerTextureUpdater* textureUpdater() { return m_textureUpdater; } | |
| 35 | |
| 36 ImageLayerTextureUpdater* m_textureUpdater; | |
| 37 }; | |
| 38 | |
| 39 static PassRefPtr<ImageLayerTextureUpdater> create() | |
| 40 { | |
| 41 return adoptRef(new ImageLayerTextureUpdater()); | |
| 42 } | |
| 43 | |
| 44 virtual ~ImageLayerTextureUpdater() { } | |
| 45 | |
| 46 virtual PassOwnPtr<LayerTextureUpdater::Texture> createTexture( | |
| 47 CCPrioritizedTextureManager* manager) OVERRIDE | |
| 48 { | |
| 49 return adoptPtr(new Texture(this, CCPrioritizedTexture::create(manager))
); | |
| 50 } | |
| 51 | |
| 52 virtual SampledTexelFormat sampledTexelFormat(GC3Denum textureFormat) OVERRI
DE | |
| 53 { | |
| 54 return PlatformColor::sameComponentOrder(textureFormat) ? | |
| 55 LayerTextureUpdater::SampledTexelFormatRGBA : LayerTextureUpdate
r::SampledTexelFormatBGRA; | |
| 56 } | |
| 57 | |
| 58 void updateTextureRect(CCResourceProvider* resourceProvider, CCPrioritizedTe
xture* texture, const IntRect& sourceRect, const IntSize& destOffset) | |
| 59 { | |
| 60 // Source rect should never go outside the image pixels, even if this | |
| 61 // is requested because the texture extends outside the image. | |
| 62 IntRect clippedSourceRect = sourceRect; | |
| 63 IntRect imageRect = IntRect(0, 0, m_bitmap.width(), m_bitmap.height()); | |
| 64 clippedSourceRect.intersect(imageRect); | |
| 65 | |
| 66 IntSize clippedDestOffset = destOffset + IntSize(clippedSourceRect.locat
ion() - sourceRect.location()); | |
| 67 | |
| 68 SkAutoLockPixels lock(m_bitmap); | |
| 69 texture->upload(resourceProvider, static_cast<const uint8_t*>(m_bitmap.g
etPixels()), imageRect, clippedSourceRect, clippedDestOffset); | |
| 70 } | |
| 71 | |
| 72 void setBitmap(const SkBitmap& bitmap) | |
| 73 { | |
| 74 m_bitmap = bitmap; | |
| 75 } | |
| 76 | |
| 77 private: | |
| 78 ImageLayerTextureUpdater() { } | |
| 79 | |
| 80 SkBitmap m_bitmap; | |
| 81 }; | |
| 82 | |
| 83 scoped_refptr<ImageLayerChromium> ImageLayerChromium::create() | |
| 84 { | |
| 85 return make_scoped_refptr(new ImageLayerChromium()); | |
| 86 } | |
| 87 | |
| 88 ImageLayerChromium::ImageLayerChromium() | |
| 89 : TiledLayerChromium() | |
| 90 { | |
| 91 } | |
| 92 | |
| 93 ImageLayerChromium::~ImageLayerChromium() | |
| 94 { | |
| 95 } | |
| 96 | |
| 97 void ImageLayerChromium::setBitmap(const SkBitmap& bitmap) | |
| 98 { | |
| 99 // setBitmap() currently gets called whenever there is any | |
| 100 // style change that affects the layer even if that change doesn't | |
| 101 // affect the actual contents of the image (e.g. a CSS animation). | |
| 102 // With this check in place we avoid unecessary texture uploads. | |
| 103 if (bitmap.pixelRef() && bitmap.pixelRef() == m_bitmap.pixelRef()) | |
| 104 return; | |
| 105 | |
| 106 m_bitmap = bitmap; | |
| 107 setNeedsDisplay(); | |
| 108 } | |
| 109 | |
| 110 void ImageLayerChromium::setTexturePriorities(const CCPriorityCalculator& priori
tyCalc) | |
| 111 { | |
| 112 // Update the tile data before creating all the layer's tiles. | |
| 113 updateTileSizeAndTilingOption(); | |
| 114 | |
| 115 TiledLayerChromium::setTexturePriorities(priorityCalc); | |
| 116 } | |
| 117 | |
| 118 void ImageLayerChromium::update(CCTextureUpdateQueue& queue, const CCOcclusionTr
acker* occlusion, CCRenderingStats& stats) | |
| 119 { | |
| 120 createTextureUpdaterIfNeeded(); | |
| 121 if (m_needsDisplay) { | |
| 122 m_textureUpdater->setBitmap(m_bitmap); | |
| 123 updateTileSizeAndTilingOption(); | |
| 124 invalidateContentRect(IntRect(IntPoint(), contentBounds())); | |
| 125 m_needsDisplay = false; | |
| 126 } | |
| 127 TiledLayerChromium::update(queue, occlusion, stats); | |
| 128 } | |
| 129 | |
| 130 void ImageLayerChromium::createTextureUpdaterIfNeeded() | |
| 131 { | |
| 132 if (m_textureUpdater) | |
| 133 return; | |
| 134 | |
| 135 m_textureUpdater = ImageLayerTextureUpdater::create(); | |
| 136 GC3Denum textureFormat = layerTreeHost()->rendererCapabilities().bestTexture
Format; | |
| 137 setTextureFormat(textureFormat); | |
| 138 setSampledTexelFormat(textureUpdater()->sampledTexelFormat(textureFormat)); | |
| 139 } | |
| 140 | |
| 141 LayerTextureUpdater* ImageLayerChromium::textureUpdater() const | |
| 142 { | |
| 143 return m_textureUpdater.get(); | |
| 144 } | |
| 145 | |
| 146 IntSize ImageLayerChromium::contentBounds() const | |
| 147 { | |
| 148 return IntSize(m_bitmap.width(), m_bitmap.height()); | |
| 149 } | |
| 150 | |
| 151 bool ImageLayerChromium::drawsContent() const | |
| 152 { | |
| 153 return !m_bitmap.isNull() && TiledLayerChromium::drawsContent(); | |
| 154 } | |
| 155 | |
| 156 bool ImageLayerChromium::needsContentsScale() const | |
| 157 { | |
| 158 // Contents scale is not need for image layer because this can be done in co
mpositor more efficiently. | |
| 159 return false; | |
| 160 } | |
| 161 | |
| 162 } | |
| 163 #endif // USE(ACCELERATED_COMPOSITING) | |
| OLD | NEW |