The Tor Browser / annotate

gfx/layers/basic/BasicCompositor.h@6474c204b198 (annotated)

gfx/layers/basic/BasicCompositor.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: 20; 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 MOZILLA_GFX_BASICCOMPOSITOR_H
michael@0 7 #define MOZILLA_GFX_BASICCOMPOSITOR_H
michael@0 8
michael@0 9 #include "mozilla/layers/Compositor.h"
michael@0 10 #include "mozilla/layers/TextureHost.h"
michael@0 11 #include "mozilla/gfx/2D.h"
michael@0 12 #include "nsAutoPtr.h"
michael@0 13
michael@0 14 class gfxContext;
michael@0 15
michael@0 16 namespace mozilla {
michael@0 17 namespace layers {
michael@0 18
michael@0 19 class BasicCompositingRenderTarget : public CompositingRenderTarget
michael@0 20 {
michael@0 21 public:
michael@0 22 BasicCompositingRenderTarget(gfx::DrawTarget* aDrawTarget, const gfx::IntRect& aRect)
michael@0 23 : CompositingRenderTarget(aRect.TopLeft())
michael@0 24 , mDrawTarget(aDrawTarget)
michael@0 25 , mSize(aRect.Size())
michael@0 26 { }
michael@0 27
michael@0 28 virtual gfx::IntSize GetSize() const MOZ_OVERRIDE { return mSize; }
michael@0 29
michael@0 30 virtual gfx::SurfaceFormat GetFormat() const MOZ_OVERRIDE
michael@0 31 {
michael@0 32 return mDrawTarget ? mDrawTarget->GetFormat()
michael@0 33 : gfx::SurfaceFormat(gfx::SurfaceFormat::UNKNOWN);
michael@0 34 }
michael@0 35
michael@0 36 RefPtr<gfx::DrawTarget> mDrawTarget;
michael@0 37 gfx::IntSize mSize;
michael@0 38 };
michael@0 39
michael@0 40 class BasicCompositor : public Compositor
michael@0 41 {
michael@0 42 public:
michael@0 43 BasicCompositor(nsIWidget *aWidget);
michael@0 44
michael@0 45 virtual ~BasicCompositor();
michael@0 46
michael@0 47
michael@0 48 virtual bool Initialize() MOZ_OVERRIDE { return true; };
michael@0 49
michael@0 50 virtual void Destroy() MOZ_OVERRIDE;
michael@0 51
michael@0 52 virtual TextureFactoryIdentifier GetTextureFactoryIdentifier() MOZ_OVERRIDE
michael@0 53 {
michael@0 54 return TextureFactoryIdentifier(LayersBackend::LAYERS_BASIC,
michael@0 55 XRE_GetProcessType(),
michael@0 56 GetMaxTextureSize());
michael@0 57 }
michael@0 58
michael@0 59 virtual TemporaryRef<CompositingRenderTarget>
michael@0 60 CreateRenderTarget(const gfx::IntRect &aRect, SurfaceInitMode aInit) MOZ_OVERRIDE;
michael@0 61
michael@0 62 virtual TemporaryRef<CompositingRenderTarget>
michael@0 63 CreateRenderTargetFromSource(const gfx::IntRect &aRect,
michael@0 64 const CompositingRenderTarget *aSource,
michael@0 65 const gfx::IntPoint &aSourcePoint) MOZ_OVERRIDE;
michael@0 66
michael@0 67 virtual TemporaryRef<DataTextureSource>
michael@0 68 CreateDataTextureSource(TextureFlags aFlags = 0) MOZ_OVERRIDE;
michael@0 69
michael@0 70 virtual bool SupportsEffect(EffectTypes aEffect) MOZ_OVERRIDE;
michael@0 71
michael@0 72 virtual void SetRenderTarget(CompositingRenderTarget *aSource) MOZ_OVERRIDE
michael@0 73 {
michael@0 74 mRenderTarget = static_cast<BasicCompositingRenderTarget*>(aSource);
michael@0 75 }
michael@0 76 virtual CompositingRenderTarget* GetCurrentRenderTarget() const MOZ_OVERRIDE
michael@0 77 {
michael@0 78 return mRenderTarget;
michael@0 79 }
michael@0 80
michael@0 81 virtual void DrawQuad(const gfx::Rect& aRect,
michael@0 82 const gfx::Rect& aClipRect,
michael@0 83 const EffectChain &aEffectChain,
michael@0 84 gfx::Float aOpacity,
michael@0 85 const gfx::Matrix4x4 &aTransform) MOZ_OVERRIDE;
michael@0 86
michael@0 87 virtual void BeginFrame(const nsIntRegion& aInvalidRegion,
michael@0 88 const gfx::Rect *aClipRectIn,
michael@0 89 const gfx::Matrix& aTransform,
michael@0 90 const gfx::Rect& aRenderBounds,
michael@0 91 gfx::Rect *aClipRectOut = nullptr,
michael@0 92 gfx::Rect *aRenderBoundsOut = nullptr) MOZ_OVERRIDE;
michael@0 93 virtual void EndFrame() MOZ_OVERRIDE;
michael@0 94 virtual void EndFrameForExternalComposition(const gfx::Matrix& aTransform) MOZ_OVERRIDE
michael@0 95 {
michael@0 96 NS_RUNTIMEABORT("We shouldn't ever hit this");
michael@0 97 }
michael@0 98 virtual void AbortFrame() MOZ_OVERRIDE;
michael@0 99
michael@0 100 virtual bool SupportsPartialTextureUpdate() { return true; }
michael@0 101 virtual bool CanUseCanvasLayerForSize(const gfx::IntSize &aSize) MOZ_OVERRIDE { return true; }
michael@0 102 virtual int32_t GetMaxTextureSize() const MOZ_OVERRIDE { return INT32_MAX; }
michael@0 103 virtual void SetDestinationSurfaceSize(const gfx::IntSize& aSize) MOZ_OVERRIDE { }
michael@0 104 virtual void SetTargetContext(gfx::DrawTarget* aTarget) MOZ_OVERRIDE
michael@0 105 {
michael@0 106 mCopyTarget = aTarget;
michael@0 107 }
michael@0 108
michael@0 109 virtual void SetScreenRenderOffset(const ScreenPoint& aOffset) MOZ_OVERRIDE {
michael@0 110 }
michael@0 111
michael@0 112 virtual void MakeCurrent(MakeCurrentFlags aFlags = 0) { }
michael@0 113
michael@0 114 virtual void PrepareViewport(const gfx::IntSize& aSize,
michael@0 115 const gfx::Matrix& aWorldTransform) MOZ_OVERRIDE { }
michael@0 116
michael@0 117 virtual const char* Name() const { return "Basic"; }
michael@0 118
michael@0 119 virtual LayersBackend GetBackendType() const MOZ_OVERRIDE {
michael@0 120 return LayersBackend::LAYERS_BASIC;
michael@0 121 }
michael@0 122
michael@0 123 virtual nsIWidget* GetWidget() const MOZ_OVERRIDE { return mWidget; }
michael@0 124
michael@0 125 gfx::DrawTarget *GetDrawTarget() { return mDrawTarget; }
michael@0 126
michael@0 127 private:
michael@0 128
michael@0 129 virtual gfx::IntSize GetWidgetSize() const MOZ_OVERRIDE { return mWidgetSize; }
michael@0 130
michael@0 131 // Widget associated with this compositor
michael@0 132 nsIWidget *mWidget;
michael@0 133 gfx::IntSize mWidgetSize;
michael@0 134
michael@0 135 // The final destination surface
michael@0 136 RefPtr<gfx::DrawTarget> mDrawTarget;
michael@0 137 // The current render target for drawing
michael@0 138 RefPtr<BasicCompositingRenderTarget> mRenderTarget;
michael@0 139 // An optional destination target to copy the results
michael@0 140 // to after drawing is completed.
michael@0 141 RefPtr<gfx::DrawTarget> mCopyTarget;
michael@0 142
michael@0 143 gfx::IntRect mInvalidRect;
michael@0 144 nsIntRegion mInvalidRegion;
michael@0 145 };
michael@0 146
michael@0 147 } // namespace layers
michael@0 148 } // namespace mozilla
michael@0 149
michael@0 150 #endif /* MOZILLA_GFX_BASICCOMPOSITOR_H */

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