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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 */
#include "mozilla/layers/TextureHost.h"
#include "mozilla/webrender/WebRenderTypes.h"
namespace mozilla {
namespace layers {
class SurfaceDescriptor;
// This textureHost is specialized for WebRender usage. With WebRender, there is
// no Compositor during composition. Instead, we use RendererOGL for
// composition. So, there are some UNREACHABLE asserts for the original
// Compositor related code path in this class. Furthermore, the RendererOGL runs
// at RenderThead instead of Compositor thread. This class is also creating the
// corresponding RenderXXXTextureHost used by RendererOGL at RenderThread.
class WebRenderTextureHost : public TextureHost {
WebRenderTextureHost(TextureFlags aFlags, TextureHost* aTexture,
const wr::ExternalImageId& aExternalImageId);
virtual ~WebRenderTextureHost();
void DeallocateDeviceData() override {}
void UnbindTextureSource() override;
gfx::SurfaceFormat GetFormat() const override;
virtual void NotifyNotUsed() override;
virtual bool IsValid() override;
// Return the format used for reading the texture. Some hardware specific
// textureHosts use their special data representation internally, but we could
// treat these textureHost as the read-format when we read them.
// Please check TextureHost::GetReadFormat().
gfx::SurfaceFormat GetReadFormat() const override;
already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override;
gfx::ColorDepth GetColorDepth() const override;
gfx::YUVColorSpace GetYUVColorSpace() const override;
gfx::ColorRange GetColorRange() const override;
gfx::IntSize GetSize() const override;
const char* Name() override { return "WebRenderTextureHost"; }
WebRenderTextureHost* AsWebRenderTextureHost() override { return this; }
RemoteTextureHostWrapper* AsRemoteTextureHostWrapper() override {
return mWrappedTextureHost->AsRemoteTextureHostWrapper();
bool IsWrappingBufferTextureHost() override;
virtual void PrepareForUse() override;
wr::ExternalImageId GetExternalImageKey();
int32_t GetRGBStride();
bool NeedsDeferredDeletion() const override;
uint32_t NumSubTextures() override;
void PushResourceUpdates(wr::TransactionBuilder& aResources,
ResourceUpdateOp aOp,
const Range<wr::ImageKey>& aImageKeys,
const wr::ExternalImageId& aExtID) override;
void PushDisplayItems(wr::DisplayListBuilder& aBuilder,
const wr::LayoutRect& aBounds,
const wr::LayoutRect& aClip, wr::ImageRendering aFilter,
const Range<wr::ImageKey>& aImageKeys,
PushDisplayItemFlagSet aFlags) override;
bool SupportsExternalCompositing(WebRenderBackend aBackend) override;
void SetAcquireFence(mozilla::ipc::FileDescriptor&& aFenceFd) override;
void SetReleaseFence(mozilla::ipc::FileDescriptor&& aFenceFd) override;
mozilla::ipc::FileDescriptor GetAndResetReleaseFence() override;
AndroidHardwareBuffer* GetAndroidHardwareBuffer() const override;
void MaybeNotifyForUse(wr::TransactionBuilder& aTxn);
TextureHostType GetTextureHostType() override;
const RefPtr<TextureHost> mWrappedTextureHost;
} // namespace layers
} // namespace mozilla