Bug 1591523 - Move existing NativeLayer management into RenderCompositorOGL. r=sotaro

Differential Revision: https://phabricator.services.mozilla.com/D50724

--HG--
extra : moz-landing-system : lando

gfx/webrender_bindings/RenderCompositor.h

@@ -19,7 +19,6 @@ class GLContext;
 }
 
 namespace layers {
-class NativeLayer;
 class SyncObjectHost;
 }  // namespace layers
 
@@ -37,7 +36,7 @@ class RenderCompositor {
   RenderCompositor(RefPtr<widget::CompositorWidget>&& aWidget);
   virtual ~RenderCompositor();
 
-  virtual bool BeginFrame(layers::NativeLayer* aNativeLayer) = 0;
+  virtual bool BeginFrame() = 0;
   virtual void EndFrame() = 0;
   // Returns false when waiting gpu tasks is failed.
   // It might happen when rendering context is lost.

gfx/webrender_bindings/RenderCompositorANGLE.cpp

@@ -349,8 +349,7 @@ RefPtr<IDXGISwapChain1> RenderCompositorANGLE::CreateSwapChainForDComp(
   return nullptr;
 }
 
-bool RenderCompositorANGLE::BeginFrame(layers::NativeLayer* aNativeLayer) {
-  MOZ_RELEASE_ASSERT(!aNativeLayer, "Unexpected native layer on this platform");
+bool RenderCompositorANGLE::BeginFrame() {
   mWidget->AsWindows()->UpdateCompositorWndSizeIfNecessary();
 
   if (mDCLayerTree) {

gfx/webrender_bindings/RenderCompositorANGLE.h

@@ -39,7 +39,7 @@ class RenderCompositorANGLE : public RenderCompositor {
   virtual ~RenderCompositorANGLE();
   bool Initialize();
 
-  bool BeginFrame(layers::NativeLayer* aNativeLayer) override;
+  bool BeginFrame() override;
   void EndFrame() override;
   bool WaitForGPU() override;
   void Pause() override;

gfx/webrender_bindings/RenderCompositorEGL.cpp

@@ -63,8 +63,7 @@ RenderCompositorEGL::~RenderCompositorEGL() {
   DestroyEGLSurface();
 }
 
-bool RenderCompositorEGL::BeginFrame(layers::NativeLayer* aNativeLayer) {
-  MOZ_RELEASE_ASSERT(!aNativeLayer, "Unexpected native layer on this platform");
+bool RenderCompositorEGL::BeginFrame() {
 #ifdef MOZ_WAYLAND
   bool newSurface =
       mWidget->AsX11() && mWidget->AsX11()->WaylandRequestsUpdatingEGLSurface();

gfx/webrender_bindings/RenderCompositorEGL.h

@@ -22,7 +22,7 @@ class RenderCompositorEGL : public RenderCompositor {
   explicit RenderCompositorEGL(RefPtr<widget::CompositorWidget> aWidget);
   virtual ~RenderCompositorEGL();
 
-  bool BeginFrame(layers::NativeLayer* aNativeLayer) override;
+  bool BeginFrame() override;
   void EndFrame() override;
   void Pause() override;
   bool Resume() override;

gfx/webrender_bindings/RenderCompositorOGL.cpp

@@ -32,12 +32,28 @@ RenderCompositorOGL::RenderCompositorOGL(
     RefPtr<gl::GLContext>&& aGL, RefPtr<widget::CompositorWidget>&& aWidget)
     : RenderCompositor(std::move(aWidget)),
       mGL(aGL),
+      mNativeLayerRoot(GetWidget()->GetNativeLayerRoot()),
       mPreviousFrameDoneSync(nullptr),
       mThisFrameDoneSync(nullptr) {
   MOZ_ASSERT(mGL);
+
+  if (mNativeLayerRoot) {
+    mNativeLayerForEntireWindow = mNativeLayerRoot->CreateLayer();
+    mNativeLayerForEntireWindow->SetSurfaceIsFlipped(true);
+    mNativeLayerForEntireWindow->SetGLContext(mGL);
+    mNativeLayerRoot->AppendLayer(mNativeLayerForEntireWindow);
+  }
 }
 
 RenderCompositorOGL::~RenderCompositorOGL() {
+  if (mNativeLayerRoot) {
+    if (mNativeLayerForEntireWindow) {
+      mNativeLayerRoot->RemoveLayer(mNativeLayerForEntireWindow);
+      mNativeLayerForEntireWindow = nullptr;
+    }
+    mNativeLayerRoot = nullptr;
+  }
+
   if (!mGL->MakeCurrent()) {
     gfxCriticalNote
         << "Failed to make render context current during destroying.";
@@ -55,21 +71,21 @@ RenderCompositorOGL::~RenderCompositorOGL() {
   }
 }
 
-bool RenderCompositorOGL::BeginFrame(layers::NativeLayer* aNativeLayer) {
+bool RenderCompositorOGL::BeginFrame() {
   if (!mGL->MakeCurrent()) {
     gfxCriticalNote << "Failed to make render context current, can't draw.";
     return false;
   }
 
-  if (aNativeLayer) {
-    aNativeLayer->SetSurfaceIsFlipped(true);
-    aNativeLayer->SetGLContext(mGL);
-    Maybe<GLuint> fbo = aNativeLayer->NextSurfaceAsFramebuffer(true);
+  if (mNativeLayerForEntireWindow) {
+    gfx::IntRect bounds({}, GetBufferSize().ToUnknownSize());
+    mNativeLayerForEntireWindow->SetRect(bounds);
+    Maybe<GLuint> fbo =
+        mNativeLayerForEntireWindow->NextSurfaceAsFramebuffer(true);
     if (!fbo) {
       return false;
     }
     mGL->fBindFramebuffer(LOCAL_GL_FRAMEBUFFER, *fbo);
-    mCurrentNativeLayer = aNativeLayer;
   } else {
     mGL->fBindFramebuffer(LOCAL_GL_FRAMEBUFFER, mGL->GetDefaultFramebuffer());
   }
@@ -81,9 +97,8 @@ void RenderCompositorOGL::EndFrame() {
   InsertFrameDoneSync();
   mGL->SwapBuffers();
 
-  if (mCurrentNativeLayer) {
-    mCurrentNativeLayer->NotifySurfaceReady();
-    mCurrentNativeLayer = nullptr;
+  if (mNativeLayerForEntireWindow) {
+    mNativeLayerForEntireWindow->NotifySurfaceReady();
   }
 }
 

gfx/webrender_bindings/RenderCompositorOGL.h

@@ -11,6 +11,11 @@
 
 namespace mozilla {
 
+namespace layers {
+class NativeLayerRoot;
+class NativeLayer;
+}  // namespace layers
+
 namespace wr {
 
 class RenderCompositorOGL : public RenderCompositor {
@@ -22,7 +27,7 @@ class RenderCompositorOGL : public RenderCompositor {
                       RefPtr<widget::CompositorWidget>&& aWidget);
   virtual ~RenderCompositorOGL();
 
-  bool BeginFrame(layers::NativeLayer* aNativeLayer) override;
+  bool BeginFrame() override;
   void EndFrame() override;
   bool WaitForGPU() override;
   void Pause() override;
@@ -39,10 +44,9 @@ class RenderCompositorOGL : public RenderCompositor {
 
   RefPtr<gl::GLContext> mGL;
 
-  // The native layer that we're currently rendering to, if any.
-  // Non-null only between BeginFrame and EndFrame if BeginFrame has been called
-  // with a non-null aNativeLayer.
-  RefPtr<layers::NativeLayer> mCurrentNativeLayer;
+  // Can be null.
+  RefPtr<layers::NativeLayerRoot> mNativeLayerRoot;
+  RefPtr<layers::NativeLayer> mNativeLayerForEntireWindow;
 
   // Used to apply back-pressure in WaitForGPU().
   GLsync mPreviousFrameDoneSync;

gfx/webrender_bindings/RendererOGL.cpp

@@ -58,12 +58,6 @@ RendererOGL::RendererOGL(RefPtr<RenderThread>&& aThread,
   MOZ_ASSERT(mRenderer);
   MOZ_ASSERT(mBridge);
   MOZ_COUNT_CTOR(RendererOGL);
-
-  mNativeLayerRoot = mCompositor->GetWidget()->GetNativeLayerRoot();
-  if (mNativeLayerRoot) {
-    mNativeLayerForEntireWindow = mNativeLayerRoot->CreateLayer();
-    mNativeLayerRoot->AppendLayer(mNativeLayerForEntireWindow);
-  }
 }
 
 RendererOGL::~RendererOGL() {
@@ -74,11 +68,6 @@ RendererOGL::~RendererOGL() {
     // Leak resources!
     return;
   }
-  if (mNativeLayerRoot) {
-    mNativeLayerRoot->RemoveLayer(mNativeLayerForEntireWindow);
-    mNativeLayerForEntireWindow = nullptr;
-    mNativeLayerRoot = nullptr;
-  }
   wr_renderer_delete(mRenderer);
 }
 
@@ -120,12 +109,7 @@ bool RendererOGL::UpdateAndRender(const Maybe<gfx::IntSize>& aReadbackSize,
   }
   // XXX set clear color if MOZ_WIDGET_ANDROID is defined.
 
-  if (mNativeLayerForEntireWindow) {
-    gfx::IntRect bounds({}, mCompositor->GetBufferSize().ToUnknownSize());
-    mNativeLayerForEntireWindow->SetRect(bounds);
-  }
-
-  if (!mCompositor->BeginFrame(mNativeLayerForEntireWindow)) {
+  if (!mCompositor->BeginFrame()) {
     if (mCompositor->IsContextLost()) {
       RenderThread::Get()->HandleDeviceReset("BeginFrame", /* aNotify */ true);
     }

gfx/webrender_bindings/RendererOGL.h

@@ -26,8 +26,6 @@ class GLContext;
 
 namespace layers {
 class CompositorBridgeParent;
-class NativeLayerRoot;
-class NativeLayer;
 class SyncObjectHost;
 }  // namespace layers
 
@@ -108,8 +106,6 @@ class RendererOGL {
  protected:
   RefPtr<RenderThread> mThread;
   UniquePtr<RenderCompositor> mCompositor;
-  RefPtr<layers::NativeLayerRoot> mNativeLayerRoot;
-  RefPtr<layers::NativeLayer> mNativeLayerForEntireWindow;
   wr::Renderer* mRenderer;
   layers::CompositorBridgeParent* mBridge;
   wr::WindowId mWindowId;