gecko-dev/gfx/webrender_bindings/RendererOGL.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set sw=2 sts=2 ts=8 et tw=99 : */
/* 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/layers/CompositorTypes.h"
#include "mozilla/layers/SyncObject.h"
#include "mozilla/webrender/RenderThread.h"
#include "mozilla/webrender/WebRenderTypes.h"
#include "mozilla/webrender/webrender_ffi.h"
namespace mozilla {
namespace gfx {
class DrawTarget;
}
namespace gl {
class GLContext;
}
namespace layers {
class CompositorBridgeParentBase;
}
namespace widget {
class CompositorWidget;
}
namespace wr {
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::WrExternalImageId aId, uint8_t aChannelIndex);
friend void UnlockExternalImage(void* aObj, wr::WrExternalImageId aId, uint8_t aChannelIndex);
public:
wr::WrExternalImageHandler GetExternalImageHandler();
/// This can be called on the render thread only.
void Update();
/// This can be called on the render thread only.
bool Render();
/// This can be called on the render thread only.
bool RenderToTarget(gfx::DrawTarget& aTarget);
/// 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);
/// This can be called on the render thread only.
~RendererOGL();
/// This can be called on the render thread only.
RendererOGL(RefPtr<RenderThread>&& aThread,
RefPtr<gl::GLContext>&& aGL,
RefPtr<widget::CompositorWidget>&&,
wr::WindowId aWindowId,
wr::Renderer* aRenderer,
layers::CompositorBridgeParentBase* aBridge);
/// This can be called on the render thread only.
void Pause();
/// This can be called on the render thread only.
bool Resume();
layers::SyncObjectHost* GetSyncObject() const { return mSyncObject.get(); }
layers::CompositorBridgeParentBase* GetCompositorBridge() { return mBridge; }
wr::WrRenderedEpochs* FlushRenderedEpochs();
RenderTextureHost* GetRenderTexture(wr::WrExternalImageId aExternalImageId);
wr::Renderer* GetRenderer() { return mRenderer; }
protected:
void NotifyWebRenderError(WebRenderError aError);
RefPtr<RenderThread> mThread;
RefPtr<gl::GLContext> mGL;
RefPtr<widget::CompositorWidget> mWidget;
wr::Renderer* mRenderer;
layers::CompositorBridgeParentBase* mBridge;
wr::WindowId mWindowId;
TimeStamp mFrameStartTime;
RefPtr<layers::SyncObjectHost> mSyncObject;
wr::DebugFlags mDebugFlags;
};
} // namespace wr
} // namespace mozilla
#endif