gecko-dev/gfx/layers/composite/ImageHost.h
Birunthan Mohanathas d05644b6b3 Bug 784739 - Switch from NULL to nullptr in remaining directories; r=ehsan
--HG--
extra : rebase_source : 1ff19b2c8fd0e77fa8e822f5007a9fa3a6b6d474
2014-01-06 10:06:04 -05:00

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6.0 KiB
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/* -*- 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 MOZILLA_GFX_IMAGEHOST_H
#define MOZILLA_GFX_IMAGEHOST_H
#include <stdio.h> // for FILE
#include "CompositableHost.h" // for CompositableHost
#include "mozilla/Attributes.h" // for MOZ_OVERRIDE
#include "mozilla/RefPtr.h" // for RefPtr
#include "mozilla/gfx/Point.h" // for Point
#include "mozilla/gfx/Rect.h" // for Rect
#include "mozilla/gfx/Types.h" // for Filter
#include "mozilla/layers/CompositorTypes.h" // for TextureInfo, etc
#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor
#include "mozilla/layers/LayersTypes.h" // for LayerRenderState, etc
#include "mozilla/layers/TextureHost.h" // for DeprecatedTextureHost, etc
#include "mozilla/mozalloc.h" // for operator delete
#include "nsCOMPtr.h" // for already_AddRefed
#include "nsRect.h" // for nsIntRect
#include "nscore.h" // for nsACString
class nsIntRegion;
namespace mozilla {
namespace gfx {
class Matrix4x4;
}
namespace layers {
class Compositor;
class ISurfaceAllocator;
struct EffectChain;
/**
* ImageHost. Works with ImageClientSingle and ImageClientBuffered
*/
class ImageHost : public CompositableHost
{
public:
ImageHost(const TextureInfo& aTextureInfo);
~ImageHost();
virtual CompositableType GetType() { return mTextureInfo.mCompositableType; }
virtual void Composite(EffectChain& aEffectChain,
float aOpacity,
const gfx::Matrix4x4& aTransform,
const gfx::Filter& aFilter,
const gfx::Rect& aClipRect,
const nsIntRegion* aVisibleRegion = nullptr,
TiledLayerProperties* aLayerProperties = nullptr) MOZ_OVERRIDE;
virtual void UseTextureHost(TextureHost* aTexture) MOZ_OVERRIDE;
virtual TextureHost* GetAsTextureHost() MOZ_OVERRIDE;
virtual void SetCompositor(Compositor* aCompositor) MOZ_OVERRIDE;
virtual void SetPictureRect(const nsIntRect& aPictureRect) MOZ_OVERRIDE
{
mPictureRect = aPictureRect;
mHasPictureRect = true;
}
virtual LayerRenderState GetRenderState() MOZ_OVERRIDE;
virtual void PrintInfo(nsACString& aTo, const char* aPrefix);
#ifdef MOZ_DUMP_PAINTING
virtual void Dump(FILE* aFile = nullptr,
const char* aPrefix = "",
bool aDumpHtml = false) MOZ_OVERRIDE;
virtual TemporaryRef<gfx::DataSourceSurface> GetAsSurface() MOZ_OVERRIDE;
#endif
protected:
RefPtr<TextureHost> mFrontBuffer;
nsIntRect mPictureRect;
bool mHasPictureRect;
};
// ImageHost with a single DeprecatedTextureHost
class DeprecatedImageHostSingle : public CompositableHost
{
public:
DeprecatedImageHostSingle(const TextureInfo& aTextureInfo)
: CompositableHost(aTextureInfo)
, mDeprecatedTextureHost(nullptr)
, mHasPictureRect(false)
{}
virtual CompositableType GetType() { return mTextureInfo.mCompositableType; }
virtual void EnsureDeprecatedTextureHost(TextureIdentifier aTextureId,
const SurfaceDescriptor& aSurface,
ISurfaceAllocator* aAllocator,
const TextureInfo& aTextureInfo) MOZ_OVERRIDE;
DeprecatedTextureHost* GetDeprecatedTextureHost() MOZ_OVERRIDE { return mDeprecatedTextureHost; }
virtual void Composite(EffectChain& aEffectChain,
float aOpacity,
const gfx::Matrix4x4& aTransform,
const gfx::Filter& aFilter,
const gfx::Rect& aClipRect,
const nsIntRegion* aVisibleRegion = nullptr,
TiledLayerProperties* aLayerProperties = nullptr);
virtual bool Update(const SurfaceDescriptor& aImage,
SurfaceDescriptor* aResult = nullptr) MOZ_OVERRIDE
{
return CompositableHost::Update(aImage, aResult);
}
virtual void SetPictureRect(const nsIntRect& aPictureRect) MOZ_OVERRIDE
{
mPictureRect = aPictureRect;
mHasPictureRect = true;
}
virtual LayerRenderState GetRenderState() MOZ_OVERRIDE;
virtual void SetCompositor(Compositor* aCompositor) MOZ_OVERRIDE;
virtual void PrintInfo(nsACString& aTo, const char* aPrefix);
#ifdef MOZ_DUMP_PAINTING
virtual void Dump(FILE* aFile=nullptr,
const char* aPrefix="",
bool aDumpHtml=false) MOZ_OVERRIDE;
virtual TemporaryRef<gfx::DataSourceSurface> GetAsSurface() MOZ_OVERRIDE;
#endif
protected:
virtual void MakeDeprecatedTextureHost(TextureIdentifier aTextureId,
const SurfaceDescriptor& aSurface,
ISurfaceAllocator* aAllocator,
const TextureInfo& aTextureInfo);
RefPtr<DeprecatedTextureHost> mDeprecatedTextureHost;
nsIntRect mPictureRect;
bool mHasPictureRect;
};
// Double buffered ImageHost. We have a single TextureHost and double buffering
// is done at the TextureHost/Client level. This is in contrast with buffered
// ContentHosts which do their own double buffering
class DeprecatedImageHostBuffered : public DeprecatedImageHostSingle
{
public:
DeprecatedImageHostBuffered(const TextureInfo& aTextureInfo)
: DeprecatedImageHostSingle(aTextureInfo)
{}
virtual bool Update(const SurfaceDescriptor& aImage,
SurfaceDescriptor* aResult = nullptr) MOZ_OVERRIDE;
protected:
virtual void MakeDeprecatedTextureHost(TextureIdentifier aTextureId,
const SurfaceDescriptor& aSurface,
ISurfaceAllocator* aAllocator,
const TextureInfo& aTextureInfo) MOZ_OVERRIDE;
};
}
}
#endif