зеркало из https://github.com/mozilla/gecko-dev.git
141 строка
4.4 KiB
C++
141 строка
4.4 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 MOZILLA_GFX_BASICCOMPOSITOR_H
|
|
#define MOZILLA_GFX_BASICCOMPOSITOR_H
|
|
|
|
#include "mozilla/layers/Compositor.h"
|
|
#include "mozilla/layers/TextureHost.h"
|
|
#include "mozilla/gfx/2D.h"
|
|
#include "nsAutoPtr.h"
|
|
|
|
namespace mozilla {
|
|
namespace layers {
|
|
|
|
class BasicCompositingRenderTarget : public CompositingRenderTarget
|
|
{
|
|
public:
|
|
BasicCompositingRenderTarget(gfx::DrawTarget* aDrawTarget, const gfx::IntRect& aRect)
|
|
: CompositingRenderTarget(aRect.TopLeft())
|
|
, mDrawTarget(aDrawTarget)
|
|
, mSize(aRect.Size())
|
|
{ }
|
|
|
|
virtual gfx::IntSize GetSize() const override { return mSize; }
|
|
|
|
void BindRenderTarget();
|
|
|
|
virtual gfx::SurfaceFormat GetFormat() const override
|
|
{
|
|
return mDrawTarget ? mDrawTarget->GetFormat()
|
|
: gfx::SurfaceFormat(gfx::SurfaceFormat::UNKNOWN);
|
|
}
|
|
|
|
RefPtr<gfx::DrawTarget> mDrawTarget;
|
|
gfx::IntSize mSize;
|
|
};
|
|
|
|
class BasicCompositor : public Compositor
|
|
{
|
|
public:
|
|
explicit BasicCompositor(nsIWidget *aWidget);
|
|
|
|
protected:
|
|
virtual ~BasicCompositor();
|
|
|
|
public:
|
|
virtual bool Initialize() override;
|
|
|
|
virtual void Destroy() override;
|
|
|
|
virtual TextureFactoryIdentifier GetTextureFactoryIdentifier() override;
|
|
|
|
virtual already_AddRefed<CompositingRenderTarget>
|
|
CreateRenderTarget(const gfx::IntRect &aRect, SurfaceInitMode aInit) override;
|
|
|
|
virtual already_AddRefed<CompositingRenderTarget>
|
|
CreateRenderTargetFromSource(const gfx::IntRect &aRect,
|
|
const CompositingRenderTarget *aSource,
|
|
const gfx::IntPoint &aSourcePoint) override;
|
|
|
|
virtual already_AddRefed<DataTextureSource>
|
|
CreateDataTextureSource(TextureFlags aFlags = TextureFlags::NO_FLAGS) override;
|
|
|
|
virtual bool SupportsEffect(EffectTypes aEffect) override;
|
|
|
|
virtual void SetRenderTarget(CompositingRenderTarget *aSource) override
|
|
{
|
|
mRenderTarget = static_cast<BasicCompositingRenderTarget*>(aSource);
|
|
mRenderTarget->BindRenderTarget();
|
|
}
|
|
virtual CompositingRenderTarget* GetCurrentRenderTarget() const override
|
|
{
|
|
return mRenderTarget;
|
|
}
|
|
|
|
virtual void DrawQuad(const gfx::Rect& aRect,
|
|
const gfx::Rect& aClipRect,
|
|
const EffectChain &aEffectChain,
|
|
gfx::Float aOpacity,
|
|
const gfx::Matrix4x4& aTransform,
|
|
const gfx::Rect& aVisibleRect) override;
|
|
|
|
virtual void ClearRect(const gfx::Rect& aRect) override;
|
|
|
|
virtual void BeginFrame(const nsIntRegion& aInvalidRegion,
|
|
const gfx::Rect *aClipRectIn,
|
|
const gfx::Rect& aRenderBounds,
|
|
gfx::Rect *aClipRectOut = nullptr,
|
|
gfx::Rect *aRenderBoundsOut = nullptr) override;
|
|
virtual void EndFrame() override;
|
|
virtual void EndFrameForExternalComposition(const gfx::Matrix& aTransform) override;
|
|
|
|
virtual bool SupportsPartialTextureUpdate() override { return true; }
|
|
virtual bool CanUseCanvasLayerForSize(const gfx::IntSize &aSize) override { return true; }
|
|
virtual int32_t GetMaxTextureSize() const override;
|
|
virtual void SetDestinationSurfaceSize(const gfx::IntSize& aSize) override { }
|
|
|
|
virtual void SetScreenRenderOffset(const ScreenPoint& aOffset) override {
|
|
}
|
|
|
|
virtual void MakeCurrent(MakeCurrentFlags aFlags = 0) override { }
|
|
|
|
#ifdef MOZ_DUMP_PAINTING
|
|
virtual const char* Name() const override { return "Basic"; }
|
|
#endif // MOZ_DUMP_PAINTING
|
|
|
|
virtual LayersBackend GetBackendType() const override {
|
|
return LayersBackend::LAYERS_BASIC;
|
|
}
|
|
|
|
virtual nsIWidget* GetWidget() const override { return mWidget; }
|
|
|
|
gfx::DrawTarget *GetDrawTarget() { return mDrawTarget; }
|
|
|
|
private:
|
|
|
|
virtual gfx::IntSize GetWidgetSize() const override { return mWidgetSize; }
|
|
|
|
// Widget associated with this compositor
|
|
nsIWidget *mWidget;
|
|
gfx::IntSize mWidgetSize;
|
|
|
|
// The final destination surface
|
|
RefPtr<gfx::DrawTarget> mDrawTarget;
|
|
// The current render target for drawing
|
|
RefPtr<BasicCompositingRenderTarget> mRenderTarget;
|
|
|
|
gfx::IntRect mInvalidRect;
|
|
nsIntRegion mInvalidRegion;
|
|
bool mDidExternalComposition;
|
|
|
|
uint32_t mMaxTextureSize;
|
|
};
|
|
|
|
} // namespace layers
|
|
} // namespace mozilla
|
|
|
|
#endif /* MOZILLA_GFX_BASICCOMPOSITOR_H */
|