mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
309 lines
9.5 KiB
C++
309 lines
9.5 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef GFX_LayerManagerComposite_H
|
|
#define GFX_LayerManagerComposite_H
|
|
|
|
#include "mozilla/layers/Compositor.h"
|
|
#include "mozilla/layers/ShadowLayers.h"
|
|
#include "Composer2D.h"
|
|
#include "mozilla/TimeStamp.h"
|
|
|
|
#ifdef XP_WIN
|
|
#include <windows.h>
|
|
#endif
|
|
|
|
#include "gfxContext.h"
|
|
#include "gfx3DMatrix.h"
|
|
|
|
namespace mozilla {
|
|
namespace layers {
|
|
|
|
class LayerComposite;
|
|
class ShadowThebesLayer;
|
|
class ShadowContainerLayer;
|
|
class ShadowImageLayer;
|
|
class ShadowCanvasLayer;
|
|
class ShadowColorLayer;
|
|
class CompositableHost;
|
|
|
|
/**
|
|
* Composite layers are for use with OMTC on the compositor thread only. There
|
|
* must be corresponding Basic layers on the content thread. For composite
|
|
* layers, the layer manager only maintains the layer tree, all rendering is
|
|
* done by a Compositor (see Compositor.h). As such, composite layers are
|
|
* platform-independent and can be used on any platform for which there is a
|
|
* Compositor implementation.
|
|
*
|
|
* The composite layer tree reflects exactly the basic layer tree. To
|
|
* composite to screen, the layer manager walks the layer tree calling render
|
|
* methods which in turn call into their CompositableHosts' Composite methods.
|
|
* These call Compositor::DrawQuad to do the rendering.
|
|
*
|
|
* Mostly, layers are updated during the layers transaction. This is done from
|
|
* CompositableClient to CompositableHost without interacting with the layer.
|
|
*
|
|
* mCompositor is stored in ShadowLayerManager.
|
|
*
|
|
* Post-landing TODO: merge LayerComposite with ShadowLayer
|
|
*/
|
|
class THEBES_API LayerManagerComposite : public ShadowLayerManager
|
|
{
|
|
public:
|
|
LayerManagerComposite(Compositor* aCompositor);
|
|
virtual ~LayerManagerComposite()
|
|
{
|
|
Destroy();
|
|
}
|
|
|
|
virtual void Destroy();
|
|
|
|
/**
|
|
* return True if initialization was succesful, false when it was not.
|
|
*/
|
|
bool Initialize();
|
|
|
|
/**
|
|
* Sets the clipping region for this layer manager. This is important on
|
|
* windows because using OGL we no longer have GDI's native clipping. Therefor
|
|
* widget must tell us what part of the screen is being invalidated,
|
|
* and we should clip to this.
|
|
*
|
|
* \param aClippingRegion Region to clip to. Setting an empty region
|
|
* will disable clipping.
|
|
*/
|
|
void SetClippingRegion(const nsIntRegion& aClippingRegion)
|
|
{
|
|
mClippingRegion = aClippingRegion;
|
|
}
|
|
|
|
/**
|
|
* LayerManager implementation.
|
|
*/
|
|
virtual ShadowLayerManager* AsShadowManager() MOZ_OVERRIDE
|
|
{
|
|
return this;
|
|
}
|
|
|
|
void UpdateRenderBounds(const nsIntRect& aRect);
|
|
|
|
void BeginTransaction() MOZ_OVERRIDE;
|
|
void BeginTransactionWithTarget(gfxContext* aTarget) MOZ_OVERRIDE;
|
|
|
|
virtual void NotifyShadowTreeTransaction() MOZ_OVERRIDE
|
|
{
|
|
mCompositor->NotifyLayersTransaction();
|
|
}
|
|
|
|
virtual bool EndEmptyTransaction(EndTransactionFlags aFlags = END_DEFAULT) MOZ_OVERRIDE;
|
|
virtual void EndTransaction(DrawThebesLayerCallback aCallback,
|
|
void* aCallbackData,
|
|
EndTransactionFlags aFlags = END_DEFAULT) MOZ_OVERRIDE;
|
|
|
|
virtual void SetRoot(Layer* aLayer) MOZ_OVERRIDE { mRoot = aLayer; }
|
|
|
|
virtual bool CanUseCanvasLayerForSize(const gfxIntSize &aSize) MOZ_OVERRIDE
|
|
{
|
|
return mCompositor->CanUseCanvasLayerForSize(aSize);
|
|
}
|
|
|
|
virtual TextureFactoryIdentifier GetTextureFactoryIdentifier() MOZ_OVERRIDE
|
|
{
|
|
return mCompositor->GetTextureFactoryIdentifier();
|
|
}
|
|
|
|
virtual int32_t GetMaxTextureSize() const MOZ_OVERRIDE
|
|
{
|
|
return mCompositor->GetMaxTextureSize();
|
|
}
|
|
|
|
virtual void ClearCachedResources(Layer* aSubtree = nullptr) MOZ_OVERRIDE;
|
|
|
|
virtual already_AddRefed<ThebesLayer> CreateThebesLayer() MOZ_OVERRIDE;
|
|
virtual already_AddRefed<ContainerLayer> CreateContainerLayer() MOZ_OVERRIDE;
|
|
virtual already_AddRefed<ImageLayer> CreateImageLayer() MOZ_OVERRIDE;
|
|
virtual already_AddRefed<ColorLayer> CreateColorLayer() MOZ_OVERRIDE;
|
|
virtual already_AddRefed<CanvasLayer> CreateCanvasLayer() MOZ_OVERRIDE;
|
|
virtual already_AddRefed<ShadowThebesLayer> CreateShadowThebesLayer() MOZ_OVERRIDE;
|
|
virtual already_AddRefed<ShadowContainerLayer> CreateShadowContainerLayer() MOZ_OVERRIDE;
|
|
virtual already_AddRefed<ShadowImageLayer> CreateShadowImageLayer() MOZ_OVERRIDE;
|
|
virtual already_AddRefed<ShadowColorLayer> CreateShadowColorLayer() MOZ_OVERRIDE;
|
|
virtual already_AddRefed<ShadowCanvasLayer> CreateShadowCanvasLayer() MOZ_OVERRIDE;
|
|
virtual already_AddRefed<ShadowRefLayer> CreateShadowRefLayer() MOZ_OVERRIDE;
|
|
|
|
virtual LayersBackend GetBackendType() MOZ_OVERRIDE
|
|
{
|
|
MOZ_ASSERT(false, "Shouldn't be called for composited layer manager");
|
|
return LAYERS_NONE;
|
|
}
|
|
virtual void GetBackendName(nsAString& name) MOZ_OVERRIDE
|
|
{
|
|
MOZ_ASSERT(false, "Shouldn't be called for composited layer manager");
|
|
name.AssignLiteral("Composite");
|
|
}
|
|
|
|
virtual already_AddRefed<gfxASurface>
|
|
CreateOptimalMaskSurface(const gfxIntSize &aSize) MOZ_OVERRIDE;
|
|
|
|
|
|
DrawThebesLayerCallback GetThebesLayerCallback() const
|
|
{ return mThebesLayerCallback; }
|
|
|
|
void* GetThebesLayerCallbackData() const
|
|
{ return mThebesLayerCallbackData; }
|
|
|
|
/*
|
|
* Helper functions for our layers
|
|
*/
|
|
void CallThebesLayerDrawCallback(ThebesLayer* aLayer,
|
|
gfxContext* aContext,
|
|
const nsIntRegion& aRegionToDraw)
|
|
{
|
|
NS_ASSERTION(mThebesLayerCallback,
|
|
"CallThebesLayerDrawCallback without callback!");
|
|
mThebesLayerCallback(aLayer, aContext,
|
|
aRegionToDraw, nsIntRegion(),
|
|
mThebesLayerCallbackData);
|
|
}
|
|
|
|
#ifdef MOZ_LAYERS_HAVE_LOG
|
|
virtual const char* Name() const MOZ_OVERRIDE { return ""; }
|
|
#endif // MOZ_LAYERS_HAVE_LOG
|
|
|
|
enum WorldTransforPolicy {
|
|
ApplyWorldTransform,
|
|
DontApplyWorldTransform
|
|
};
|
|
|
|
/**
|
|
* Setup World transform matrix.
|
|
* Transform will be ignored if it is not PreservesAxisAlignedRectangles
|
|
* or has non integer scale
|
|
*/
|
|
void SetWorldTransform(const gfxMatrix& aMatrix);
|
|
gfxMatrix& GetWorldTransform(void);
|
|
|
|
static bool AddMaskEffect(Layer* aMaskLayer,
|
|
EffectChain& aEffect,
|
|
bool aIs3D = false);
|
|
|
|
/**
|
|
* Creates a DrawTarget which is optimized for inter-operating with this
|
|
* layermanager.
|
|
*/
|
|
virtual TemporaryRef<mozilla::gfx::DrawTarget>
|
|
CreateDrawTarget(const mozilla::gfx::IntSize &aSize,
|
|
mozilla::gfx::SurfaceFormat aFormat) MOZ_OVERRIDE;
|
|
|
|
const nsIntSize& GetWidgetSize()
|
|
{
|
|
return mCompositor->GetWidgetSize();
|
|
}
|
|
|
|
/**
|
|
* Calculates the 'completeness' of the rendering that intersected with the
|
|
* screen on the last render. This is only useful when progressive tile
|
|
* drawing is enabled, otherwise this will always return 1.0.
|
|
* This function's expense scales with the size of the layer tree and the
|
|
* complexity of individual layers' valid regions.
|
|
*/
|
|
float ComputeRenderIntegrity();
|
|
|
|
private:
|
|
/** Region we're clipping our current drawing to. */
|
|
nsIntRegion mClippingRegion;
|
|
nsIntRect mRenderBounds;
|
|
|
|
/** Current root layer. */
|
|
LayerComposite *RootLayer() const;
|
|
|
|
/**
|
|
* Recursive helper method for use by ComputeRenderIntegrity. Subtracts
|
|
* any incomplete rendering on aLayer from aScreenRegion. Any low-precision
|
|
* rendering is included in aLowPrecisionScreenRegion. aTransform is the
|
|
* accumulated transform of intermediate surfaces beneath aLayer.
|
|
*/
|
|
static void ComputeRenderIntegrityInternal(Layer* aLayer,
|
|
nsIntRegion& aScreenRegion,
|
|
nsIntRegion& aLowPrecisionScreenRegion,
|
|
const gfx3DMatrix& aTransform);
|
|
|
|
/**
|
|
* Render the current layer tree to the active target.
|
|
*/
|
|
void Render();
|
|
|
|
void WorldTransformRect(nsIntRect& aRect);
|
|
|
|
/** Our more efficient but less powerful alter ego, if one is available. */
|
|
nsRefPtr<Composer2D> mComposer2D;
|
|
|
|
/* Thebes layer callbacks; valid at the end of a transaciton,
|
|
* while rendering */
|
|
DrawThebesLayerCallback mThebesLayerCallback;
|
|
void *mThebesLayerCallbackData;
|
|
gfxMatrix mWorldMatrix;
|
|
bool mInTransaction;
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* General information and tree management for layers.
|
|
*/
|
|
class LayerComposite
|
|
{
|
|
public:
|
|
LayerComposite(LayerManagerComposite *aManager)
|
|
: mCompositeManager(aManager)
|
|
, mCompositor(aManager->GetCompositor())
|
|
, mDestroyed(false)
|
|
{ }
|
|
|
|
virtual ~LayerComposite() {}
|
|
|
|
virtual LayerComposite *GetFirstChildComposite()
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
/* Do NOT call this from the generic LayerComposite destructor. Only from the
|
|
* concrete class destructor
|
|
*/
|
|
virtual void Destroy();
|
|
|
|
virtual Layer* GetLayer() = 0;
|
|
|
|
virtual void RenderLayer(const nsIntPoint& aOffset,
|
|
const nsIntRect& aClipRect) = 0;
|
|
|
|
virtual void SetCompositableHost(CompositableHost* aHost)
|
|
{
|
|
MOZ_ASSERT(false, "called SetCompositableHost for a layer without a compositable host");
|
|
}
|
|
virtual CompositableHost* GetCompositableHost() = 0;
|
|
|
|
virtual void CleanupResources() = 0;
|
|
|
|
virtual TiledLayerComposer* AsTiledLayerComposer() { return NULL; }
|
|
|
|
virtual void EnsureBuffer(CompositableType aType)
|
|
{
|
|
MOZ_ASSERT(false, "Should not be called unless overriden.");
|
|
}
|
|
|
|
protected:
|
|
LayerManagerComposite* mCompositeManager;
|
|
RefPtr<Compositor> mCompositor;
|
|
bool mDestroyed;
|
|
};
|
|
|
|
|
|
} /* layers */
|
|
} /* mozilla */
|
|
|
|
#endif /* GFX_LayerManagerComposite_H */
|