michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef MOZILLA_GFX_COMPOSITORD3D9_H
michael@0: #define MOZILLA_GFX_COMPOSITORD3D9_H
michael@0: 
michael@0: #include "mozilla/gfx/2D.h"
michael@0: #include "gfx2DGlue.h"
michael@0: #include "mozilla/layers/Compositor.h"
michael@0: #include "mozilla/layers/TextureD3D9.h"
michael@0: #include "DeviceManagerD3D9.h"
michael@0: 
michael@0: class nsWidget;
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace layers {
michael@0: 
michael@0: class CompositorD3D9 : public Compositor
michael@0: {
michael@0: public:
michael@0:   CompositorD3D9(PCompositorParent* aParent, nsIWidget *aWidget);
michael@0:   ~CompositorD3D9();
michael@0: 
michael@0:   virtual bool Initialize() MOZ_OVERRIDE;
michael@0:   virtual void Destroy() MOZ_OVERRIDE {}
michael@0: 
michael@0:   virtual TextureFactoryIdentifier
michael@0:     GetTextureFactoryIdentifier() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual bool CanUseCanvasLayerForSize(const gfx::IntSize &aSize) MOZ_OVERRIDE;
michael@0:   virtual int32_t GetMaxTextureSize() const MOZ_FINAL;
michael@0: 
michael@0:   virtual void SetTargetContext(gfx::DrawTarget *aTarget) MOZ_OVERRIDE
michael@0:   {
michael@0:     mTarget = aTarget;
michael@0:   }
michael@0: 
michael@0:   virtual void MakeCurrent(MakeCurrentFlags aFlags = 0) MOZ_OVERRIDE {}
michael@0: 
michael@0:   virtual TemporaryRef<CompositingRenderTarget>
michael@0:     CreateRenderTarget(const gfx::IntRect &aRect,
michael@0:                        SurfaceInitMode aInit) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual TemporaryRef<CompositingRenderTarget>
michael@0:     CreateRenderTargetFromSource(const gfx::IntRect &aRect,
michael@0:                                  const CompositingRenderTarget *aSource,
michael@0:                                  const gfx::IntPoint &aSourcePoint) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void SetRenderTarget(CompositingRenderTarget *aSurface);
michael@0:   virtual CompositingRenderTarget* GetCurrentRenderTarget() const MOZ_OVERRIDE
michael@0:   {
michael@0:     return mCurrentRT;
michael@0:   }
michael@0: 
michael@0:   virtual void SetDestinationSurfaceSize(const gfx::IntSize& aSize) MOZ_OVERRIDE {}
michael@0: 
michael@0:   virtual void ClearRect(const gfx::Rect& aRect) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void DrawQuad(const gfx::Rect &aRect,
michael@0:                         const gfx::Rect &aClipRect,
michael@0:                         const EffectChain &aEffectChain,
michael@0:                         gfx::Float aOpacity,
michael@0:                         const gfx::Matrix4x4 &aTransform) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void BeginFrame(const nsIntRegion& aInvalidRegion,
michael@0:                           const gfx::Rect *aClipRectIn,
michael@0:                           const gfx::Matrix& aTransform,
michael@0:                           const gfx::Rect& aRenderBounds,
michael@0:                           gfx::Rect *aClipRectOut = nullptr,
michael@0:                           gfx::Rect *aRenderBoundsOut = nullptr) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void EndFrame() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void EndFrameForExternalComposition(const gfx::Matrix& aTransform) MOZ_OVERRIDE {}
michael@0: 
michael@0:   virtual void AbortFrame() MOZ_OVERRIDE {}
michael@0: 
michael@0:   virtual void PrepareViewport(const gfx::IntSize& aSize,
michael@0:                                const gfx::Matrix& aWorldTransform) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual bool SupportsPartialTextureUpdate() MOZ_OVERRIDE{ return true; }
michael@0: 
michael@0: #ifdef MOZ_DUMP_PAINTING
michael@0:   virtual const char* Name() const MOZ_OVERRIDE { return "Direct3D9"; }
michael@0: #endif
michael@0: 
michael@0:   virtual LayersBackend GetBackendType() const MOZ_OVERRIDE {
michael@0:     return LayersBackend::LAYERS_D3D9;
michael@0:   }
michael@0: 
michael@0:   virtual nsIWidget* GetWidget() const MOZ_OVERRIDE { return mWidget; }
michael@0: 
michael@0:   IDirect3DDevice9* device() const
michael@0:   {
michael@0:     return mDeviceManager
michael@0:            ? mDeviceManager->device()
michael@0:            : nullptr;
michael@0:   }
michael@0: 
michael@0:   /**
michael@0:    * Returns true if the Compositor is ready to go.
michael@0:    * D3D9 devices can be awkward and there is a bunch of logic around
michael@0:    * resetting/recreating devices and swap chains. That is handled by this method.
michael@0:    * If we don't have a device and swap chain ready for rendering, we will return
michael@0:    * false and if necessary destroy the device and/or swap chain. We will also
michael@0:    * schedule another composite so we get another go at rendering, thus we shouldn't
michael@0:    * miss a composite due to re-creating a device.
michael@0:    */
michael@0:   virtual bool Ready() MOZ_OVERRIDE;
michael@0: 
michael@0:   /**
michael@0:    * Declare an offset to use when rendering layers. This will be ignored when
michael@0:    * rendering to a target instead of the screen.
michael@0:    */
michael@0:   virtual void SetScreenRenderOffset(const ScreenPoint& aOffset) MOZ_OVERRIDE
michael@0:   {
michael@0:     if (aOffset.x || aOffset.y) {
michael@0:       NS_RUNTIMEABORT("SetScreenRenderOffset not supported by CompositorD3D9.");
michael@0:     }
michael@0:     // If the offset is 0, 0 that's okay.
michael@0:   }
michael@0: 
michael@0:   virtual TemporaryRef<DataTextureSource>
michael@0:     CreateDataTextureSource(TextureFlags aFlags = 0) MOZ_OVERRIDE;
michael@0: private:
michael@0:   // ensure mSize is up to date with respect to mWidget
michael@0:   void EnsureSize();
michael@0:   void SetSamplerForFilter(gfx::Filter aFilter);
michael@0:   void PaintToTarget();
michael@0:   void SetMask(const EffectChain &aEffectChain, uint32_t aMaskTexture);
michael@0:   /**
michael@0:    * Ensure we have a swap chain and it is ready for rendering.
michael@0:    * Requires mDeviceManger to be non-null.
michael@0:    * Returns true if we have a working swap chain; false otherwise.
michael@0:    * If we cannot create or validate the swap chain due to a bad device manager,
michael@0:    * then the device will be destroyed and set mDeviceManager to null. We will
michael@0:    * schedule another composite if it is a good idea to try again or we need to
michael@0:    * recreate the device.
michael@0:    */
michael@0:   bool EnsureSwapChain();
michael@0: 
michael@0:   /**
michael@0:    * DeviceManagerD3D9 keeps a count of the number of times its device is
michael@0:    * reset or recreated. We keep a parallel count (mDeviceResetCount). It
michael@0:    * is possible that we miss a reset if it is 'caused' by another
michael@0:    * compositor (for another window). In which case we need to invalidate
michael@0:    * everything and render it all. This method checks the reset counts
michael@0:    * match and if not invalidates everything (a long comment on that in
michael@0:    * the cpp file).
michael@0:    */
michael@0:   void CheckResetCount();
michael@0: 
michael@0:   void ReportFailure(const nsACString &aMsg, HRESULT aCode);
michael@0: 
michael@0:   virtual gfx::IntSize GetWidgetSize() const MOZ_OVERRIDE
michael@0:   {
michael@0:     return gfx::ToIntSize(mSize);
michael@0:   }
michael@0: 
michael@0:   /* Device manager instance for this compositor */
michael@0:   nsRefPtr<DeviceManagerD3D9> mDeviceManager;
michael@0: 
michael@0:   /* Swap chain associated with this compositor */
michael@0:   nsRefPtr<SwapChainD3D9> mSwapChain;
michael@0: 
michael@0:   /* Widget associated with this layer manager */
michael@0:   nsIWidget *mWidget;
michael@0: 
michael@0:   /*
michael@0:    * Context target, nullptr when drawing directly to our swap chain.
michael@0:    */
michael@0:   RefPtr<gfx::DrawTarget> mTarget;
michael@0: 
michael@0:   RefPtr<CompositingRenderTargetD3D9> mDefaultRT;
michael@0:   RefPtr<CompositingRenderTargetD3D9> mCurrentRT;
michael@0: 
michael@0:   nsIntSize mSize;
michael@0: 
michael@0:   uint32_t mDeviceResetCount;
michael@0: };
michael@0: 
michael@0: }
michael@0: }
michael@0: 
michael@0: #endif