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71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=99: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef _include_mozilla_gfx_ipc_GPUProcessManager_h_
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#define _include_mozilla_gfx_ipc_GPUProcessManager_h_
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#include "base/basictypes.h"
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#include "Units.h"
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namespace mozilla {
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namespace layers {
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class APZCTreeManager;
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class CompositorSession;
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class ClientLayerManager;
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} // namespace layers
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namespace widget {
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class CompositorWidgetProxy;
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} // namespace widget
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namespace gfx {
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// The GPUProcessManager is a singleton responsible for creating GPU-bound
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// objects that may live in another process. Currently, it provides access
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// to the compositor via CompositorBridgeParent.
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class GPUProcessManager final
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{
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typedef layers::APZCTreeManager APZCTreeManager;
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public:
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static void Initialize();
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static void Shutdown();
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static GPUProcessManager* Get();
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~GPUProcessManager();
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already_AddRefed<layers::CompositorSession> CreateTopLevelCompositor(
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widget::CompositorWidgetProxy* aProxy,
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layers::ClientLayerManager* aLayerManager,
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CSSToLayoutDeviceScale aScale,
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bool aUseAPZ,
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bool aUseExternalSurfaceSize,
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int aSurfaceWidth,
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int aSurfaceHeight);
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// This returns a reference to the APZCTreeManager to which
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// pan/zoom-related events can be sent.
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already_AddRefed<APZCTreeManager> GetAPZCTreeManagerForLayers(uint64_t aLayersId);
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// Allocate an ID that can be used to refer to a layer tree and
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// associated resources that live only on the compositor thread.
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//
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// Must run on the content main thread.
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uint64_t AllocateLayerTreeId();
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// Release compositor-thread resources referred to by |aID|.
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//
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// Must run on the content main thread.
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void DeallocateLayerTreeId(uint64_t aLayersId);
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private:
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GPUProcessManager();
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DISALLOW_COPY_AND_ASSIGN(GPUProcessManager);
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};
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} // namespace gfx
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} // namespace mozilla
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#endif // _include_mozilla_gfx_ipc_GPUProcessManager_h_
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