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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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Add m-esr52 at 52.6.0
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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_COMPOSITORD3D9_H
+#define MOZILLA_GFX_COMPOSITORD3D9_H
+
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/Point.h"
+#include "gfx2DGlue.h"
+#include "mozilla/layers/Compositor.h"
+#include "mozilla/layers/TextureD3D9.h"
+#include "DeviceManagerD3D9.h"
+
+class nsWidget;
+
+namespace mozilla {
+namespace layers {
+
+class CompositorD3D9 : public Compositor
+{
+public:
+ CompositorD3D9(CompositorBridgeParent* aParent, widget::CompositorWidget* aWidget);
+ ~CompositorD3D9();
+
+ virtual CompositorD3D9* AsCompositorD3D9() override { return this; }
+
+ virtual bool Initialize(nsCString* const out_failureReason) override;
+
+ virtual TextureFactoryIdentifier
+ GetTextureFactoryIdentifier() override;
+
+ virtual bool CanUseCanvasLayerForSize(const gfx::IntSize &aSize) override;
+ virtual int32_t GetMaxTextureSize() const final;
+
+ virtual void MakeCurrent(MakeCurrentFlags aFlags = 0) 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 void SetRenderTarget(CompositingRenderTarget *aSurface) override;
+ virtual CompositingRenderTarget* GetCurrentRenderTarget() const override
+ {
+ return mCurrentRT;
+ }
+
+ virtual void SetDestinationSurfaceSize(const gfx::IntSize& aSize) override {}
+
+ virtual void ClearRect(const gfx::Rect& aRect) override;
+
+ virtual void DrawQuad(const gfx::Rect &aRect,
+ const gfx::IntRect &aClipRect,
+ const EffectChain &aEffectChain,
+ gfx::Float aOpacity,
+ const gfx::Matrix4x4& aTransform,
+ const gfx::Rect& aVisibleRect) override;
+
+ virtual void BeginFrame(const nsIntRegion& aInvalidRegion,
+ const gfx::IntRect *aClipRectIn,
+ const gfx::IntRect& aRenderBounds,
+ const nsIntRegion& aOpaqueRegion,
+ gfx::IntRect *aClipRectOut = nullptr,
+ gfx::IntRect *aRenderBoundsOut = nullptr) override;
+
+ virtual void EndFrame() override;
+
+ virtual void EndFrameForExternalComposition(const gfx::Matrix& aTransform) override {}
+
+ virtual void PrepareViewport(const gfx::IntSize& aSize);
+
+ virtual bool SupportsPartialTextureUpdate() override{ return true; }
+
+ virtual bool SupportsEffect(EffectTypes aEffect) override;
+
+#ifdef MOZ_DUMP_PAINTING
+ virtual const char* Name() const override { return "Direct3D9"; }
+#endif
+
+ virtual LayersBackend GetBackendType() const override {
+ return LayersBackend::LAYERS_D3D9;
+ }
+
+ IDirect3DDevice9* device() const
+ {
+ // If the reset counts don't match it means the device was lost and we are
+ // in the process of recreating a new one or will be soon.
+ // cf. comment in EnsureSwapChain.
+ return mDeviceManager && mDeviceResetCount == mDeviceManager->GetDeviceResetCount()
+ ? mDeviceManager->device()
+ : nullptr;
+ }
+
+ /**
+ * Returns true if the Compositor is ready to go.
+ * D3D9 devices can be awkward and there is a bunch of logic around
+ * resetting/recreating devices and swap chains. That is handled by this method.
+ * If we don't have a device and swap chain ready for rendering, we will return
+ * false and if necessary destroy the device and/or swap chain. We will also
+ * schedule another composite so we get another go at rendering, thus we shouldn't
+ * miss a composite due to re-creating a device.
+ */
+ virtual bool Ready() override;
+
+ /**
+ * Declare an offset to use when rendering layers. This will be ignored when
+ * rendering to a target instead of the screen.
+ */
+ virtual void SetScreenRenderOffset(const ScreenPoint& aOffset) override
+ {
+ if (aOffset.x || aOffset.y) {
+ NS_RUNTIMEABORT("SetScreenRenderOffset not supported by CompositorD3D9.");
+ }
+ // If the offset is 0, 0 that's okay.
+ }
+
+ virtual already_AddRefed<DataTextureSource>
+ CreateDataTextureSource(TextureFlags aFlags = TextureFlags::NO_FLAGS) override;
+private:
+ // ensure mSize is up to date with respect to mWidget
+ void EnsureSize();
+ void SetSamplerForSamplingFilter(gfx::SamplingFilter aSamplingFilter);
+ void PaintToTarget();
+ void SetMask(const EffectChain &aEffectChain, uint32_t aMaskTexture);
+ /**
+ * Ensure we have a swap chain and it is ready for rendering.
+ * Requires mDeviceManger to be non-null.
+ * Returns true if we have a working swap chain; false otherwise.
+ * If we cannot create or validate the swap chain due to a bad device manager,
+ * then the device will be destroyed and set mDeviceManager to null. We will
+ * schedule another composite if it is a good idea to try again or we need to
+ * recreate the device.
+ */
+ bool EnsureSwapChain();
+
+ already_AddRefed<IDirect3DTexture9>
+ CreateTexture(const gfx::IntRect& aRect,
+ const CompositingRenderTarget* aSource,
+ const gfx::IntPoint& aSourcePoint);
+
+ /**
+ * Complete a mix-blend step at the end of DrawQuad().
+ */
+ void FinishMixBlend(const gfx::IntRect& aBackdropRect,
+ const gfx::Rect& aBackdropDest,
+ const gfx::Matrix4x4& aBackdropTransform,
+ RefPtr<IDirect3DTexture9> aBackdrop,
+ gfx::CompositionOp aBlendMode);
+
+ /**
+ * DeviceManagerD3D9 keeps a count of the number of times its device is
+ * reset or recreated. We keep a parallel count (mDeviceResetCount). It
+ * is possible that we miss a reset if it is 'caused' by another
+ * compositor (for another window). In which case we need to invalidate
+ * everything and render it all. This method checks the reset counts
+ * match and if not invalidates everything (a long comment on that in
+ * the cpp file).
+ */
+ void CheckResetCount();
+
+ void FailedToResetDevice();
+
+ void ReportFailure(const nsACString &aMsg, HRESULT aCode);
+
+ /* Device manager instance for this compositor */
+ RefPtr<DeviceManagerD3D9> mDeviceManager;
+
+ /* Swap chain associated with this compositor */
+ RefPtr<SwapChainD3D9> mSwapChain;
+
+ RefPtr<CompositingRenderTargetD3D9> mDefaultRT;
+ RefPtr<CompositingRenderTargetD3D9> mCurrentRT;
+
+ LayoutDeviceIntSize mSize;
+
+ uint32_t mDeviceResetCount;
+ uint32_t mFailedResetAttempts;
+};
+
+}
+}
+
+#endif