gfx/layers/basic/BasicLayersImpl.h@6474c204b198 (annotated)
gfx/layers/basic/BasicLayersImpl.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- |
| michael@0 | 2 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef GFX_BASICLAYERSIMPL_H |
| michael@0 | 7 | #define GFX_BASICLAYERSIMPL_H |
| michael@0 | 8 | |
| michael@0 | 9 | #include "BasicImplData.h" // for BasicImplData |
| michael@0 | 10 | #include "BasicLayers.h" // for BasicLayerManager |
| michael@0 | 11 | #include "ReadbackLayer.h" // for ReadbackLayer |
| michael@0 | 12 | #include "gfxContext.h" // for gfxContext, etc |
| michael@0 | 13 | #include "mozilla/Attributes.h" // for MOZ_DELETE, MOZ_STACK_CLASS |
| michael@0 | 14 | #include "mozilla/Maybe.h" // for Maybe |
| michael@0 | 15 | #include "nsAutoPtr.h" // for nsRefPtr |
| michael@0 | 16 | #include "nsDebug.h" // for NS_ASSERTION |
| michael@0 | 17 | #include "nsISupportsImpl.h" // for gfxContext::Release, etc |
| michael@0 | 18 | #include "nsRegion.h" // for nsIntRegion |
| michael@0 | 19 | |
| michael@0 | 20 | namespace mozilla { |
| michael@0 | 21 | namespace gfx { |
| michael@0 | 22 | class DrawTarget; |
| michael@0 | 23 | } |
| michael@0 | 24 | |
| michael@0 | 25 | namespace layers { |
| michael@0 | 26 | |
| michael@0 | 27 | class AutoMoz2DMaskData; |
| michael@0 | 28 | class BasicContainerLayer; |
| michael@0 | 29 | class Layer; |
| michael@0 | 30 | |
| michael@0 | 31 | class AutoSetOperator { |
| michael@0 | 32 | public: |
| michael@0 | 33 | AutoSetOperator(gfxContext* aContext, gfxContext::GraphicsOperator aOperator) { |
| michael@0 | 34 | if (aOperator != gfxContext::OPERATOR_OVER) { |
| michael@0 | 35 | aContext->SetOperator(aOperator); |
| michael@0 | 36 | mContext = aContext; |
| michael@0 | 37 | } |
| michael@0 | 38 | } |
| michael@0 | 39 | ~AutoSetOperator() { |
| michael@0 | 40 | if (mContext) { |
| michael@0 | 41 | mContext->SetOperator(gfxContext::OPERATOR_OVER); |
| michael@0 | 42 | } |
| michael@0 | 43 | } |
| michael@0 | 44 | private: |
| michael@0 | 45 | nsRefPtr<gfxContext> mContext; |
| michael@0 | 46 | }; |
| michael@0 | 47 | |
| michael@0 | 48 | class BasicReadbackLayer : public ReadbackLayer, |
| michael@0 | 49 | public BasicImplData |
| michael@0 | 50 | { |
| michael@0 | 51 | public: |
| michael@0 | 52 | BasicReadbackLayer(BasicLayerManager* aLayerManager) : |
| michael@0 | 53 | ReadbackLayer(aLayerManager, |
| michael@0 | 54 | static_cast<BasicImplData*>(MOZ_THIS_IN_INITIALIZER_LIST())) |
| michael@0 | 55 | { |
| michael@0 | 56 | MOZ_COUNT_CTOR(BasicReadbackLayer); |
| michael@0 | 57 | } |
| michael@0 | 58 | virtual ~BasicReadbackLayer() |
| michael@0 | 59 | { |
| michael@0 | 60 | MOZ_COUNT_DTOR(BasicReadbackLayer); |
| michael@0 | 61 | } |
| michael@0 | 62 | |
| michael@0 | 63 | virtual void SetVisibleRegion(const nsIntRegion& aRegion) |
| michael@0 | 64 | { |
| michael@0 | 65 | NS_ASSERTION(BasicManager()->InConstruction(), |
| michael@0 | 66 | "Can only set properties in construction phase"); |
| michael@0 | 67 | ReadbackLayer::SetVisibleRegion(aRegion); |
| michael@0 | 68 | } |
| michael@0 | 69 | |
| michael@0 | 70 | protected: |
| michael@0 | 71 | BasicLayerManager* BasicManager() |
| michael@0 | 72 | { |
| michael@0 | 73 | return static_cast<BasicLayerManager*>(mManager); |
| michael@0 | 74 | } |
| michael@0 | 75 | }; |
| michael@0 | 76 | |
| michael@0 | 77 | /* |
| michael@0 | 78 | * Extract a mask surface for a mask layer |
| michael@0 | 79 | * Returns true and through outparams a surface for the mask layer if |
| michael@0 | 80 | * a mask layer is present and has a valid surface and transform; |
| michael@0 | 81 | * false otherwise. |
| michael@0 | 82 | * The transform for the layer will be put in aMaskData |
| michael@0 | 83 | */ |
| michael@0 | 84 | bool |
| michael@0 | 85 | GetMaskData(Layer* aMaskLayer, |
| michael@0 | 86 | const gfx::Point& aDeviceOffset, |
| michael@0 | 87 | AutoMoz2DMaskData* aMaskData); |
| michael@0 | 88 | |
| michael@0 | 89 | // Paint the current source to a context using a mask, if present |
| michael@0 | 90 | void |
| michael@0 | 91 | PaintWithMask(gfxContext* aContext, float aOpacity, Layer* aMaskLayer); |
| michael@0 | 92 | |
| michael@0 | 93 | // Fill the rect with the source, using a mask and opacity, if present |
| michael@0 | 94 | void |
| michael@0 | 95 | FillRectWithMask(gfx::DrawTarget* aDT, |
| michael@0 | 96 | const gfx::Rect& aRect, |
| michael@0 | 97 | const gfx::Color& aColor, |
| michael@0 | 98 | const gfx::DrawOptions& aOptions, |
| michael@0 | 99 | gfx::SourceSurface* aMaskSource = nullptr, |
| michael@0 | 100 | const gfx::Matrix* aMaskTransform = nullptr); |
| michael@0 | 101 | void |
| michael@0 | 102 | FillRectWithMask(gfx::DrawTarget* aDT, |
| michael@0 | 103 | const gfx::Rect& aRect, |
| michael@0 | 104 | gfx::SourceSurface* aSurface, |
| michael@0 | 105 | gfx::Filter aFilter, |
| michael@0 | 106 | const gfx::DrawOptions& aOptions, |
| michael@0 | 107 | gfx::ExtendMode aExtendMode, |
| michael@0 | 108 | gfx::SourceSurface* aMaskSource = nullptr, |
| michael@0 | 109 | const gfx::Matrix* aMaskTransform = nullptr, |
| michael@0 | 110 | const gfx::Matrix* aSurfaceTransform = nullptr); |
| michael@0 | 111 | void |
| michael@0 | 112 | FillRectWithMask(gfx::DrawTarget* aDT, |
| michael@0 | 113 | const gfx::Point& aDeviceOffset, |
| michael@0 | 114 | const gfx::Rect& aRect, |
| michael@0 | 115 | gfx::SourceSurface* aSurface, |
| michael@0 | 116 | gfx::Filter aFilter, |
| michael@0 | 117 | const gfx::DrawOptions& aOptions, |
| michael@0 | 118 | Layer* aMaskLayer); |
| michael@0 | 119 | void |
| michael@0 | 120 | FillRectWithMask(gfx::DrawTarget* aDT, |
| michael@0 | 121 | const gfx::Point& aDeviceOffset, |
| michael@0 | 122 | const gfx::Rect& aRect, |
| michael@0 | 123 | const gfx::Color& aColor, |
| michael@0 | 124 | const gfx::DrawOptions& aOptions, |
| michael@0 | 125 | Layer* aMaskLayer); |
| michael@0 | 126 | |
| michael@0 | 127 | BasicImplData* |
| michael@0 | 128 | ToData(Layer* aLayer); |
| michael@0 | 129 | |
| michael@0 | 130 | /** |
| michael@0 | 131 | * Returns the operator to be used when blending and compositing this layer. |
| michael@0 | 132 | * Currently there is no way to specify both a blending and a compositing |
| michael@0 | 133 | * operator other than normal and source over respectively. |
| michael@0 | 134 | * |
| michael@0 | 135 | * If the layer has |
| michael@0 | 136 | * an effective blend mode operator other than normal, as returned by |
| michael@0 | 137 | * GetEffectiveMixBlendMode, this operator is used for blending, and source |
| michael@0 | 138 | * over is used for compositing. |
| michael@0 | 139 | * If the blend mode for this layer is normal, the compositing operator |
| michael@0 | 140 | * returned by GetOperator is used. |
| michael@0 | 141 | */ |
| michael@0 | 142 | gfx::CompositionOp |
| michael@0 | 143 | GetEffectiveOperator(Layer* aLayer); |
| michael@0 | 144 | |
| michael@0 | 145 | } |
| michael@0 | 146 | } |
| michael@0 | 147 | |
| michael@0 | 148 | #endif |
