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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_GFX_RENDERTEXTUREHOSTWRAPPER_H
#define MOZILLA_GFX_RENDERTEXTUREHOSTWRAPPER_H
#include "RenderTextureHostSWGL.h"
namespace mozilla {
namespace wr {
/**
* RenderTextureHost of GPUVideoTextureHost.
*
* GPUVideoTextureHost wraps TextureHost. This class wraps RenderTextureHost of
* the wrapped TextureHost. Lifetime of the wrapped TextureHost is usually
* longer than GPUVideoTextureHost and the wrapped TextureHost is used by
* multiple GPUVideoTextureHosts. This class is used to reduce recreations of
* the wrappded RenderTextureHost. Initializations of some
* RenderTextureHosts(RenderDXGITextureHost and
* RenderDXGIYCbCrTextureHost) have overhead.
*/
class RenderTextureHostWrapper final : public RenderTextureHostSWGL {
public:
explicit RenderTextureHostWrapper(ExternalImageId aExternalImageId);
RenderTextureHostWrapper(const layers::RemoteTextureId aTextureId,
const layers::RemoteTextureOwnerId aOwnerId,
const base::ProcessId aForPid);
// RenderTextureHost
wr::WrExternalImage Lock(uint8_t aChannelIndex, gl::GLContext* aGL) override;
void Unlock() override;
void ClearCachedResources() override;
void PrepareForUse() override;
void NotifyForUse() override;
void NotifyNotUsed() override;
bool SyncObjectNeeded() override;
RenderMacIOSurfaceTextureHost* AsRenderMacIOSurfaceTextureHost() override;
RenderDXGITextureHost* AsRenderDXGITextureHost() override;
RenderDXGIYCbCrTextureHost* AsRenderDXGIYCbCrTextureHost() override;
RenderDcompSurfaceTextureHost* AsRenderDcompSurfaceTextureHost() override;
RenderAndroidHardwareBufferTextureHost*
AsRenderAndroidHardwareBufferTextureHost() override;
RenderAndroidSurfaceTextureHost* AsRenderAndroidSurfaceTextureHost() override;
RenderTextureHostSWGL* AsRenderTextureHostSWGL() override;
bool IsWrappingAsyncRemoteTexture() override;
// RenderTextureHostSWGL
size_t GetPlaneCount() const override;
gfx::SurfaceFormat GetFormat() const override;
gfx::ColorDepth GetColorDepth() const override;
gfx::YUVRangedColorSpace GetYUVColorSpace() const override;
bool MapPlane(RenderCompositor* aCompositor, uint8_t aChannelIndex,
PlaneInfo& aPlaneInfo) override;
void UnmapPlanes() override;
// This is just a wrapper, so doesn't need to report the
// size of the wrapped object (which reports itself).
size_t Bytes() override { return 0; }
protected:
// RenderTextureHost
std::pair<gfx::Point, gfx::Point> GetUvCoords(
gfx::IntSize aTextureSize) const override;
private:
~RenderTextureHostWrapper() override;
void EnsureTextureHost() const;
void EnsureRemoteTexture() const;
RenderTextureHostSWGL* EnsureRenderTextureHostSWGL() const;
ExternalImageId mExternalImageId;
mutable RefPtr<RenderTextureHost> mTextureHost;
Maybe<layers::RemoteTextureId> mTextureId;
Maybe<layers::RemoteTextureOwnerId> mOwnerId;
Maybe<base::ProcessId> mForPid;
};
} // namespace wr
} // namespace mozilla
#endif // MOZILLA_GFX_RENDERTEXTUREHOSTWRAPPER_H
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