1 files changed, 176 insertions, 0 deletions
diff --git a/gfx/webrender_bindings/RendererOGL.h b/gfx/webrender_bindings/RendererOGL.h
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+++ b/gfx/webrender_bindings/RendererOGL.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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_LAYERS_RENDEREROGL_H
+#define MOZILLA_LAYERS_RENDEREROGL_H
+
+#include "mozilla/ipc/FileDescriptor.h"
+#include "mozilla/layers/CompositorTypes.h"
+#include "mozilla/gfx/Point.h"
+#include "mozilla/webrender/RenderThread.h"
+#include "mozilla/webrender/WebRenderTypes.h"
+#include "mozilla/webrender/webrender_ffi.h"
+#include "mozilla/webrender/RendererScreenshotGrabber.h"
+
+namespace mozilla {
+
+namespace gfx {
+class DrawTarget;
+}
+
+namespace gl {
+class GLContext;
+}
+
+namespace layers {
+class CompositorBridgeParent;
+class SyncObjectHost;
+}  // namespace layers
+
+namespace widget {
+class CompositorWidget;
+}
+
+namespace wr {
+
+class RenderCompositor;
+class RenderTextureHost;
+
+/// Owns the WebRender renderer and GL context.
+///
+/// There is one renderer per window, all owned by the render thread.
+/// This class is a similar abstraction to CompositorOGL except that it is used
+/// on the render thread instead of the compositor thread.
+class RendererOGL {
+  friend wr::WrExternalImage LockExternalImage(void* aObj,
+                                               wr::ExternalImageId aId,
+                                               uint8_t aChannelIndex,
+                                               wr::ImageRendering);
+  friend void UnlockExternalImage(void* aObj, wr::ExternalImageId aId,
+                                  uint8_t aChannelIndex);
+
+ public:
+  wr::WrExternalImageHandler GetExternalImageHandler();
+
+  void SetFramePublishId(FramePublishId aPublishId);
+
+  /// This can be called on the render thread only.
+  void Update();
+
+  /// This can be called on the render thread only.
+  RenderedFrameId UpdateAndRender(const Maybe<gfx::IntSize>& aReadbackSize,
+                                  const Maybe<wr::ImageFormat>& aReadbackFormat,
+                                  const Maybe<Range<uint8_t>>& aReadbackBuffer,
+                                  bool* aNeedsYFlip, RendererStats* aOutStats);
+
+  /// This can be called on the render thread only.
+  void WaitForGPU();
+
+  /// This can be called on the render thread only.
+  ipc::FileDescriptor GetAndResetReleaseFence();
+
+  /// This can be called on the render thread only.
+  RenderedFrameId GetLastCompletedFrameId();
+
+  /// This can be called on the render thread only.
+  RenderedFrameId UpdateFrameId();
+
+  /// This can be called on the render thread only.
+  void SetProfilerEnabled(bool aEnabled);
+
+  /// This can be called on the render thread only.
+  void SetFrameStartTime(const TimeStamp& aTime);
+
+  /// These can be called on the render thread only.
+  void BeginRecording(const TimeStamp& aRecordingStart,
+                      wr::PipelineId aPipelineId);
+  void MaybeRecordFrame(const WebRenderPipelineInfo* aPipelineInfo);
+
+  Maybe<layers::FrameRecording> EndRecording();
+
+  /// This can be called on the render thread only.
+  ~RendererOGL();
+
+  /// This can be called on the render thread only.
+  RendererOGL(RefPtr<RenderThread>&& aThread,
+              UniquePtr<RenderCompositor> aCompositor, wr::WindowId aWindowId,
+              wr::Renderer* aRenderer, layers::CompositorBridgeParent* aBridge);
+
+  /// This can be called on the render thread only.
+  void Pause();
+
+  /// This can be called on the render thread only.
+  bool Resume();
+
+  /// This can be called on the render thread only.
+  bool IsPaused();
+
+  /// This can be called on the render thread only.
+  void CheckGraphicsResetStatus(const char* aCaller, bool aForce);
+
+  layers::SyncObjectHost* GetSyncObject() const;
+
+  layers::CompositorBridgeParent* GetCompositorBridge() { return mBridge; }
+
+  void FlushPipelineInfo();
+
+  RefPtr<const WebRenderPipelineInfo> GetLastPipelineInfo() const {
+    return mLastPipelineInfo;
+  }
+
+  RenderTextureHost* GetRenderTexture(wr::ExternalImageId aExternalImageId);
+
+  RenderCompositor* GetCompositor() { return mCompositor.get(); }
+
+  void AccumulateMemoryReport(MemoryReport* aReport);
+
+  void SetProfilerUI(const nsACString& aUI);
+
+  wr::Renderer* GetRenderer() { return mRenderer; }
+
+  gl::GLContext* gl() const;
+
+  void* swgl() const;
+
+  bool EnsureAsyncScreenshot();
+
+ protected:
+  /**
+   * Determine if any content pipelines updated, and update
+   * mContentPipelineEpochs.
+   */
+  bool DidPaintContent(const wr::WebRenderPipelineInfo* aFrameEpochs);
+
+  RefPtr<RenderThread> mThread;
+  UniquePtr<RenderCompositor> mCompositor;
+  UniquePtr<layers::CompositionRecorder> mCompositionRecorder;  // can be null
+  wr::Renderer* mRenderer;
+  layers::CompositorBridgeParent* mBridge;
+  wr::WindowId mWindowId;
+  TimeStamp mFrameStartTime;
+
+  bool mDisableNativeCompositor;
+
+  RendererScreenshotGrabber mScreenshotGrabber;
+
+  // The id of the root WebRender pipeline.
+  //
+  // All other pipelines are considered content.
+  wr::PipelineId mRootPipelineId;
+
+  // A mapping of wr::PipelineId to the epochs when last they updated.
+  //
+  // We need to use uint64_t here since wr::PipelineId is not default
+  // constructable.
+  std::unordered_map<uint64_t, wr::Epoch> mContentPipelineEpochs;
+
+  RefPtr<WebRenderPipelineInfo> mLastPipelineInfo;
+};
+
+}  // namespace wr
+}  // namespace mozilla
+
+#endif