forked from mirrors/gecko-dev
1910 lines
57 KiB
C++
1910 lines
57 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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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#include "mozilla/layers/TextureClient.h"
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#include <stdint.h> // for uint8_t, uint32_t, etc
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#include "Layers.h" // for Layer, etc
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#include "gfx2DGlue.h"
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#include "gfxPlatform.h" // for gfxPlatform
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#include "mozilla/Atomics.h"
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#include "mozilla/SystemGroup.h"
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#include "mozilla/ipc/SharedMemory.h" // for SharedMemory, etc
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#include "mozilla/layers/CompositableForwarder.h"
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#include "mozilla/layers/ISurfaceAllocator.h"
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#include "mozilla/layers/ImageBridgeChild.h"
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#include "mozilla/layers/ImageDataSerializer.h"
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#include "mozilla/layers/PaintThread.h"
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#include "mozilla/layers/TextureClientRecycleAllocator.h"
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#include "mozilla/Mutex.h"
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#include "nsDebug.h" // for NS_ASSERTION, NS_WARNING, etc
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#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc
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#include "ImageContainer.h" // for PlanarYCbCrData, etc
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/Logging.h" // for gfxDebug
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#include "mozilla/layers/TextureClientOGL.h"
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#include "mozilla/layers/PTextureChild.h"
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#include "mozilla/gfx/DataSurfaceHelpers.h" // for CreateDataSourceSurfaceByCloning
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#include "nsPrintfCString.h" // for nsPrintfCString
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#include "LayersLogging.h" // for AppendToString
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#include "gfxUtils.h" // for gfxUtils::GetAsLZ4Base64Str
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#include "IPDLActor.h"
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#include "BufferTexture.h"
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#include "gfxPrefs.h"
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#include "mozilla/layers/ShadowLayers.h"
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#include "mozilla/ipc/CrossProcessSemaphore.h"
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#ifdef XP_WIN
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#include "mozilla/gfx/DeviceManagerDx.h"
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#include "mozilla/layers/TextureD3D11.h"
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#include "mozilla/layers/TextureDIB.h"
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#include "gfxWindowsPlatform.h"
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#include "gfx2DGlue.h"
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#endif
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#ifdef MOZ_X11
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#include "mozilla/layers/TextureClientX11.h"
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#include "GLXLibrary.h"
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#endif
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#ifdef XP_MACOSX
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#include "mozilla/layers/MacIOSurfaceTextureClientOGL.h"
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#endif
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#if 0
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#define RECYCLE_LOG(...) printf_stderr(__VA_ARGS__)
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#else
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#define RECYCLE_LOG(...) do { } while (0)
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#endif
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namespace mozilla {
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namespace layers {
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using namespace mozilla::ipc;
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using namespace mozilla::gl;
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using namespace mozilla::gfx;
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struct TextureDeallocParams
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{
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TextureData* data;
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RefPtr<TextureChild> actor;
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RefPtr<LayersIPCChannel> allocator;
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bool clientDeallocation;
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bool syncDeallocation;
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bool workAroundSharedSurfaceOwnershipIssue;
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};
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void DeallocateTextureClient(TextureDeallocParams params);
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/**
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* TextureChild is the content-side incarnation of the PTexture IPDL actor.
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*
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* TextureChild is used to synchronize a texture client and its corresponding
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* TextureHost if needed (a TextureClient that is not shared with the compositor
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* does not have a TextureChild)
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*
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* During the deallocation phase, a TextureChild may hold its recently destroyed
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* TextureClient's data until the compositor side confirmed that it is safe to
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* deallocte or recycle the it.
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*/
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class TextureChild final : PTextureChild
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{
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~TextureChild()
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{
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// We should have deallocated mTextureData in ActorDestroy
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MOZ_ASSERT(!mTextureData);
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MOZ_ASSERT_IF(!mOwnerCalledDestroy, !mTextureClient);
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}
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(TextureChild)
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TextureChild()
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: mCompositableForwarder(nullptr)
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, mTextureForwarder(nullptr)
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, mTextureClient(nullptr)
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, mTextureData(nullptr)
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, mDestroyed(false)
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, mMainThreadOnly(false)
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, mIPCOpen(false)
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, mOwnsTextureData(false)
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, mOwnerCalledDestroy(false)
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{}
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mozilla::ipc::IPCResult Recv__delete__() override { return IPC_OK(); }
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LayersIPCChannel* GetAllocator() { return mTextureForwarder; }
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void ActorDestroy(ActorDestroyReason why) override;
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bool IPCOpen() const { return mIPCOpen; }
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void Lock() const { if (mCompositableForwarder && mCompositableForwarder->GetTextureForwarder()->UsesImageBridge()) { mLock.Enter(); } }
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void Unlock() const { if (mCompositableForwarder && mCompositableForwarder->GetTextureForwarder()->UsesImageBridge()) { mLock.Leave(); } }
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private:
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// AddIPDLReference and ReleaseIPDLReference are only to be called by CreateIPDLActor
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// and DestroyIPDLActor, respectively. We intentionally make them private to prevent misuse.
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// The purpose of these methods is to be aware of when the IPC system around this
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// actor goes down: mIPCOpen is then set to false.
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void AddIPDLReference() {
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MOZ_ASSERT(mIPCOpen == false);
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mIPCOpen = true;
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AddRef();
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}
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void ReleaseIPDLReference() {
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MOZ_ASSERT(mIPCOpen == false);
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Release();
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}
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/// The normal way to destroy the actor.
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///
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/// This will asynchronously send a Destroy message to the parent actor, whom
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/// will send the delete message.
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void Destroy(const TextureDeallocParams& aParams);
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// This lock is used order to prevent several threads to access the
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// TextureClient's data concurrently. In particular, it prevents shutdown
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// code to destroy a texture while another thread is reading or writing into
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// it.
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// In most places, the lock is held in short and bounded scopes in which we
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// don't block on any other resource. There are few exceptions to this, which
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// are discussed below.
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//
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// The locking pattern of TextureClient may in some case upset deadlock detection
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// tools such as TSan.
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// Typically our tile rendering code will lock all of its tiles, render into them
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// and unlock them all right after that, which looks something like:
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//
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// Lock tile A
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// Lock tile B
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// Lock tile C
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// Apply drawing commands to tiles A, B and C
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// Unlock tile A
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// Unlock tile B
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// Unlock tile C
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//
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// And later, we may end up rendering a tile buffer that has the same tiles,
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// in a different order, for example:
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//
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// Lock tile B
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// Lock tile A
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// Lock tile D
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// Apply drawing commands to tiles A, B and D
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// Unlock tile B
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// Unlock tile A
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// Unlock tile D
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//
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// This is because textures being expensive to create, we recycle them as much
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// as possible and they may reappear in the tile buffer in a different order.
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//
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// Unfortunately this is not very friendly to TSan's analysis, which will see
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// that B was once locked while A was locked, and then A locked while B was
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// locked. TSan identifies this as a potential dead-lock which would be the
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// case if this kind of inconsistent and dependent locking order was happening
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// concurrently.
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// In the case of TextureClient, dependent locking only ever happens on the
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// thread that draws into the texture (let's call it the producer thread). Other
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// threads may call into a method that can lock the texture in a short and
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// bounded scope inside of which it is not allowed to do anything that could
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// cause the thread to block. A given texture can only have one producer thread.
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//
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// Another example of TSan-unfriendly locking pattern is when copying a texture
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// into another, which also never happens outside of the producer thread.
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// Copying A into B looks like this:
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//
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// Lock texture B
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// Lock texture A
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// Copy A into B
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// Unlock A
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// Unlock B
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//
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// In a given frame we may need to copy A into B and in another frame copy
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// B into A. For example A and B can be the Front and Back buffers, alternating
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// roles and the copy is needed to avoid the cost of re-drawing the valid
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// region.
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//
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// The important rule is that all of the dependent locking must occur only
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// in the texture's producer thread to avoid deadlocks.
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mutable gfx::CriticalSection mLock;
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RefPtr<CompositableForwarder> mCompositableForwarder;
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RefPtr<TextureForwarder> mTextureForwarder;
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TextureClient* mTextureClient;
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TextureData* mTextureData;
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Atomic<bool> mDestroyed;
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bool mMainThreadOnly;
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bool mIPCOpen;
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bool mOwnsTextureData;
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bool mOwnerCalledDestroy;
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friend class TextureClient;
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friend void DeallocateTextureClient(TextureDeallocParams params);
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};
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static void DestroyTextureData(TextureData* aTextureData, LayersIPCChannel* aAllocator,
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bool aDeallocate, bool aMainThreadOnly)
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{
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if (!aTextureData) {
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return;
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}
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if (aMainThreadOnly && !NS_IsMainThread()) {
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RefPtr<LayersIPCChannel> allocatorRef = aAllocator;
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SystemGroup::Dispatch(TaskCategory::Other, NS_NewRunnableFunction(
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"layers::DestroyTextureData",
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[aTextureData, allocatorRef, aDeallocate]() -> void {
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DestroyTextureData(aTextureData, allocatorRef, aDeallocate, true);
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}));
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return;
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}
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if (aDeallocate) {
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aTextureData->Deallocate(aAllocator);
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} else {
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aTextureData->Forget(aAllocator);
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}
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delete aTextureData;
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}
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void
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TextureChild::ActorDestroy(ActorDestroyReason why)
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{
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AUTO_PROFILER_LABEL("TextureChild::ActorDestroy", GRAPHICS);
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MOZ_ASSERT(mIPCOpen);
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mIPCOpen = false;
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if (mTextureData) {
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DestroyTextureData(mTextureData, GetAllocator(), mOwnsTextureData, mMainThreadOnly);
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mTextureData = nullptr;
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}
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}
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void
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TextureChild::Destroy(const TextureDeallocParams& aParams)
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{
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MOZ_ASSERT(!mOwnerCalledDestroy);
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if (mOwnerCalledDestroy) {
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return;
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}
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mOwnerCalledDestroy = true;
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if (!IPCOpen()) {
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DestroyTextureData(
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aParams.data,
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aParams.allocator,
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aParams.clientDeallocation,
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mMainThreadOnly);
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return;
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}
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// DestroyTextureData will be called by TextureChild::ActorDestroy
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mTextureData = aParams.data;
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mOwnsTextureData = aParams.clientDeallocation;
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if (!mCompositableForwarder ||
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!mCompositableForwarder->DestroyInTransaction(this))
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{
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this->SendDestroy();
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}
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}
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/* static */ Atomic<uint64_t> TextureClient::sSerialCounter(0);
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void DeallocateTextureClientSyncProxy(TextureDeallocParams params,
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ReentrantMonitor* aBarrier, bool* aDone)
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{
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DeallocateTextureClient(params);
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ReentrantMonitorAutoEnter autoMon(*aBarrier);
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*aDone = true;
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aBarrier->NotifyAll();
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}
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/// The logic for synchronizing a TextureClient's deallocation goes here.
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///
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/// This funciton takes care of dispatching work to the right thread using
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/// a synchronous proxy if needed, and handles client/host deallocation.
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void
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DeallocateTextureClient(TextureDeallocParams params)
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{
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if (!params.actor && !params.data) {
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// Nothing to do
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return;
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}
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TextureChild* actor = params.actor;
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MessageLoop* ipdlMsgLoop = nullptr;
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if (params.allocator) {
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ipdlMsgLoop = params.allocator->GetMessageLoop();
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if (!ipdlMsgLoop) {
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// An allocator with no message loop means we are too late in the shutdown
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// sequence.
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gfxCriticalError() << "Texture deallocated too late during shutdown";
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return;
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}
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}
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// First make sure that the work is happening on the IPDL thread.
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if (ipdlMsgLoop && MessageLoop::current() != ipdlMsgLoop) {
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if (params.syncDeallocation) {
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bool done = false;
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ReentrantMonitor barrier("DeallocateTextureClient");
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ReentrantMonitorAutoEnter autoMon(barrier);
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ipdlMsgLoop->PostTask(NewRunnableFunction("DeallocateTextureClientSyncProxyRunnable",
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DeallocateTextureClientSyncProxy,
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params, &barrier, &done));
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while (!done) {
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barrier.Wait();
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}
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} else {
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ipdlMsgLoop->PostTask(NewRunnableFunction("DeallocateTextureClientRunnable",
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DeallocateTextureClient,
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params));
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}
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// The work has been forwarded to the IPDL thread, we are done.
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return;
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}
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// Below this line, we are either in the IPDL thread or ther is no IPDL
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// thread anymore.
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if (!ipdlMsgLoop) {
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// If we don't have a message loop we can't know for sure that we are in
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// the IPDL thread and use the LayersIPCChannel.
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// This should ideally not happen outside of gtest, but some shutdown raciness
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// could put us in this situation.
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params.allocator = nullptr;
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}
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if (!actor) {
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// We don't have an IPDL actor, probably because we destroyed the TextureClient
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// before sharing it with the compositor. It means the data cannot be owned by
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// the TextureHost since we never created the TextureHost...
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// ..except if the lovely mWorkaroundAnnoyingSharedSurfaceOwnershipIssues member
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// is set to true. In this case we are in a special situation where this
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// TextureClient is in wrapped into another TextureClient which assumes it owns
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// our data.
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bool shouldDeallocate = !params.workAroundSharedSurfaceOwnershipIssue;
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DestroyTextureData(params.data, params.allocator,
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shouldDeallocate,
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false); // main-thread deallocation
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return;
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}
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actor->Destroy(params);
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}
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void TextureClient::Destroy()
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{
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// Async paints should have been flushed by now.
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MOZ_RELEASE_ASSERT(mPaintThreadRefs == 0);
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if (mActor && !mIsLocked) {
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mActor->Lock();
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}
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mBorrowedDrawTarget = nullptr;
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mReadLock = nullptr;
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RefPtr<TextureChild> actor = mActor;
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mActor = nullptr;
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if (actor && !actor->mDestroyed.compareExchange(false, true)) {
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actor->Unlock();
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actor = nullptr;
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}
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TextureData* data = mData;
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if (!mWorkaroundAnnoyingSharedSurfaceLifetimeIssues) {
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mData = nullptr;
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}
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if (data || actor) {
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TextureDeallocParams params;
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params.actor = actor;
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params.allocator = mAllocator;
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params.clientDeallocation = !!(mFlags & TextureFlags::DEALLOCATE_CLIENT);
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params.workAroundSharedSurfaceOwnershipIssue = mWorkaroundAnnoyingSharedSurfaceOwnershipIssues;
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if (mWorkaroundAnnoyingSharedSurfaceLifetimeIssues) {
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params.data = nullptr;
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} else {
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params.data = data;
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}
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// At the moment we always deallocate synchronously when deallocating on the
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// client side, but having asynchronous deallocate in some of the cases will
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// be a worthwhile optimization.
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params.syncDeallocation = !!(mFlags & TextureFlags::DEALLOCATE_CLIENT);
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// Release the lock before calling DeallocateTextureClient because the latter
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// may wait for the main thread which could create a dead-lock.
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if (actor) {
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actor->Unlock();
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}
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DeallocateTextureClient(params);
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}
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}
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void
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TextureClient::LockActor() const
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{
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if (mActor) {
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mActor->Lock();
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}
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}
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void
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TextureClient::UnlockActor() const
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{
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if (mActor) {
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mActor->Unlock();
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}
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}
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bool
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TextureClient::IsReadLocked() const
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{
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if (!mReadLock) {
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return false;
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}
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MOZ_ASSERT(mReadLock->AsNonBlockingLock(), "Can only check locked for non-blocking locks!");
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return mReadLock->AsNonBlockingLock()->GetReadCount() > 1;
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}
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bool
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TextureClient::TryReadLock()
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{
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if (!mReadLock || mIsReadLocked) {
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return true;
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}
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if (mReadLock->AsNonBlockingLock()) {
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if (IsReadLocked()) {
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return false;
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}
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}
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if (!mReadLock->TryReadLock(TimeDuration::FromMilliseconds(500))) {
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return false;
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}
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mIsReadLocked = true;
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return true;
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}
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void
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TextureClient::ReadUnlock()
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{
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if (!mIsReadLocked) {
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return;
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}
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MOZ_ASSERT(mReadLock);
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mReadLock->ReadUnlock();
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mIsReadLocked = false;
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}
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bool
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TextureClient::Lock(OpenMode aMode)
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{
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MOZ_ASSERT(IsValid());
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MOZ_ASSERT(!mIsLocked);
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if (!IsValid()) {
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return false;
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}
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if (mIsLocked) {
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return mOpenMode == aMode;
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}
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if ((aMode & OpenMode::OPEN_WRITE || !mInfo.canConcurrentlyReadLock) && !TryReadLock()) {
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// Only warn if attempting to write. Attempting to read is acceptable usage.
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if (aMode & OpenMode::OPEN_WRITE) {
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NS_WARNING("Attempt to Lock a texture that is being read by the compositor!");
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}
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return false;
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}
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LockActor();
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mIsLocked = mData->Lock(aMode);
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mOpenMode = aMode;
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auto format = GetFormat();
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if (mIsLocked && CanExposeDrawTarget() &&
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(aMode & OpenMode::OPEN_READ_WRITE) == OpenMode::OPEN_READ_WRITE &&
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NS_IsMainThread() &&
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// the formats that we apparently expect, in the cairo backend. Any other
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// format will trigger an assertion in GfxFormatToCairoFormat.
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(format == SurfaceFormat::A8R8G8B8_UINT32 ||
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|
format == SurfaceFormat::X8R8G8B8_UINT32 ||
|
|
format == SurfaceFormat::A8 ||
|
|
format == SurfaceFormat::R5G6B5_UINT16)) {
|
|
if (!BorrowDrawTarget()) {
|
|
// Failed to get a DrawTarget, means we won't be able to write into the
|
|
// texture, might as well fail now.
|
|
Unlock();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (!mIsLocked) {
|
|
UnlockActor();
|
|
ReadUnlock();
|
|
}
|
|
|
|
return mIsLocked;
|
|
}
|
|
|
|
void
|
|
TextureClient::Unlock()
|
|
{
|
|
MOZ_ASSERT(IsValid());
|
|
MOZ_ASSERT(mIsLocked);
|
|
if (!IsValid() || !mIsLocked) {
|
|
return;
|
|
}
|
|
|
|
if (mBorrowedDrawTarget) {
|
|
if (!(mOpenMode & OpenMode::OPEN_ASYNC)) {
|
|
if (mOpenMode & OpenMode::OPEN_WRITE) {
|
|
mBorrowedDrawTarget->Flush();
|
|
if (mReadbackSink && !mData->ReadBack(mReadbackSink)) {
|
|
// Fallback implementation for reading back, because mData does not
|
|
// have a backend-specific implementation and returned false.
|
|
RefPtr<SourceSurface> snapshot = mBorrowedDrawTarget->Snapshot();
|
|
RefPtr<DataSourceSurface> dataSurf = snapshot->GetDataSurface();
|
|
mReadbackSink->ProcessReadback(dataSurf);
|
|
}
|
|
}
|
|
|
|
mBorrowedDrawTarget->DetachAllSnapshots();
|
|
// If this assertion is hit, it means something is holding a strong reference
|
|
// to our DrawTarget externally, which is not allowed.
|
|
MOZ_ASSERT(mBorrowedDrawTarget->refCount() <= mExpectedDtRefs);
|
|
}
|
|
|
|
mBorrowedDrawTarget = nullptr;
|
|
}
|
|
|
|
if (mOpenMode & OpenMode::OPEN_WRITE) {
|
|
mUpdated = true;
|
|
}
|
|
|
|
if (mData) {
|
|
mData->Unlock();
|
|
}
|
|
mIsLocked = false;
|
|
mOpenMode = OpenMode::OPEN_NONE;
|
|
|
|
UnlockActor();
|
|
ReadUnlock();
|
|
}
|
|
|
|
void
|
|
TextureClient::EnableReadLock()
|
|
{
|
|
if (!mReadLock) {
|
|
if (mAllocator->GetTileLockAllocator()) {
|
|
mReadLock = NonBlockingTextureReadLock::Create(mAllocator);
|
|
} else {
|
|
// IPC is down
|
|
gfxCriticalError() << "TextureClient::EnableReadLock IPC is down";
|
|
}
|
|
}
|
|
}
|
|
|
|
bool
|
|
TextureClient::OnForwardedToHost()
|
|
{
|
|
if (mData) {
|
|
mData->OnForwardedToHost();
|
|
}
|
|
|
|
if (mReadLock && mUpdated) {
|
|
// Take a read lock on behalf of the TextureHost. The latter will unlock
|
|
// after the shared data is available again for drawing.
|
|
mReadLock->ReadLock();
|
|
mUpdated = false;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
TextureClient::~TextureClient()
|
|
{
|
|
// TextureClients should be kept alive while there are references on the
|
|
// paint thread.
|
|
MOZ_ASSERT(mPaintThreadRefs == 0);
|
|
mReadLock = nullptr;
|
|
Destroy();
|
|
}
|
|
|
|
void
|
|
TextureClient::UpdateFromSurface(gfx::SourceSurface* aSurface)
|
|
{
|
|
MOZ_ASSERT(IsValid());
|
|
MOZ_ASSERT(mIsLocked);
|
|
MOZ_ASSERT(aSurface);
|
|
// If you run into this assertion, make sure the texture was locked write-only
|
|
// rather than read-write.
|
|
MOZ_ASSERT(!mBorrowedDrawTarget);
|
|
|
|
// XXX - It would be better to first try the DrawTarget approach and fallback
|
|
// to the backend-specific implementation because the latter will usually do
|
|
// an expensive read-back + cpu-side copy if the texture is on the gpu.
|
|
// There is a bug with the DrawTarget approach, though specific to reading back
|
|
// from WebGL (where R and B channel end up inverted) to figure out first.
|
|
if (mData->UpdateFromSurface(aSurface)) {
|
|
return;
|
|
}
|
|
if (CanExposeDrawTarget() && NS_IsMainThread()) {
|
|
RefPtr<DrawTarget> dt = BorrowDrawTarget();
|
|
|
|
MOZ_ASSERT(dt);
|
|
if (dt) {
|
|
dt->CopySurface(aSurface,
|
|
gfx::IntRect(gfx::IntPoint(0, 0), aSurface->GetSize()),
|
|
gfx::IntPoint(0, 0));
|
|
return;
|
|
}
|
|
}
|
|
NS_WARNING("TextureClient::UpdateFromSurface failed");
|
|
}
|
|
|
|
|
|
already_AddRefed<TextureClient>
|
|
TextureClient::CreateSimilar(LayersBackend aLayersBackend,
|
|
TextureFlags aFlags,
|
|
TextureAllocationFlags aAllocFlags) const
|
|
{
|
|
MOZ_ASSERT(IsValid());
|
|
|
|
MOZ_ASSERT(!mIsLocked);
|
|
if (mIsLocked) {
|
|
return nullptr;
|
|
}
|
|
|
|
LockActor();
|
|
TextureData* data = mData->CreateSimilar(mAllocator,
|
|
aLayersBackend,
|
|
aFlags,
|
|
aAllocFlags);
|
|
UnlockActor();
|
|
|
|
if (!data) {
|
|
return nullptr;
|
|
}
|
|
|
|
return MakeAndAddRef<TextureClient>(data, aFlags, mAllocator);
|
|
}
|
|
|
|
gfx::DrawTarget*
|
|
TextureClient::BorrowDrawTarget()
|
|
{
|
|
MOZ_ASSERT(IsValid());
|
|
MOZ_ASSERT(mIsLocked);
|
|
// TODO- We can't really assert that at the moment because there is code that Borrows
|
|
// the DrawTarget, just to get a snapshot, which is legit in term of OpenMode
|
|
// but we should have a way to get a SourceSurface directly instead.
|
|
//MOZ_ASSERT(mOpenMode & OpenMode::OPEN_WRITE);
|
|
|
|
if (!IsValid() || !mIsLocked) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (!mBorrowedDrawTarget) {
|
|
mBorrowedDrawTarget = mData->BorrowDrawTarget();
|
|
#ifdef DEBUG
|
|
mExpectedDtRefs = mBorrowedDrawTarget ? mBorrowedDrawTarget->refCount() : 0;
|
|
#endif
|
|
}
|
|
|
|
return mBorrowedDrawTarget;
|
|
}
|
|
|
|
bool
|
|
TextureClient::BorrowMappedData(MappedTextureData& aMap)
|
|
{
|
|
MOZ_ASSERT(IsValid());
|
|
|
|
// TODO - SharedRGBImage just accesses the buffer without properly locking
|
|
// the texture. It's bad.
|
|
//MOZ_ASSERT(mIsLocked);
|
|
//if (!mIsLocked) {
|
|
// return nullptr;
|
|
//}
|
|
|
|
return mData ? mData->BorrowMappedData(aMap) : false;
|
|
}
|
|
|
|
bool
|
|
TextureClient::BorrowMappedYCbCrData(MappedYCbCrTextureData& aMap)
|
|
{
|
|
MOZ_ASSERT(IsValid());
|
|
|
|
return mData ? mData->BorrowMappedYCbCrData(aMap) : false;
|
|
}
|
|
|
|
bool
|
|
TextureClient::ToSurfaceDescriptor(SurfaceDescriptor& aOutDescriptor)
|
|
{
|
|
MOZ_ASSERT(IsValid());
|
|
|
|
return mData ? mData->Serialize(aOutDescriptor) : false;
|
|
}
|
|
|
|
// static
|
|
PTextureChild*
|
|
TextureClient::CreateIPDLActor()
|
|
{
|
|
TextureChild* c = new TextureChild();
|
|
c->AddIPDLReference();
|
|
return c;
|
|
}
|
|
|
|
// static
|
|
bool
|
|
TextureClient::DestroyIPDLActor(PTextureChild* actor)
|
|
{
|
|
static_cast<TextureChild*>(actor)->ReleaseIPDLReference();
|
|
return true;
|
|
}
|
|
|
|
// static
|
|
already_AddRefed<TextureClient>
|
|
TextureClient::AsTextureClient(PTextureChild* actor)
|
|
{
|
|
if (!actor) {
|
|
return nullptr;
|
|
}
|
|
|
|
TextureChild* tc = static_cast<TextureChild*>(actor);
|
|
|
|
tc->Lock();
|
|
|
|
// Since TextureClient may be destroyed asynchronously with respect to its
|
|
// IPDL actor, we must acquire a reference within a lock. The mDestroyed bit
|
|
// tells us whether or not the main thread has disconnected the TextureClient
|
|
// from its actor.
|
|
if (tc->mDestroyed) {
|
|
tc->Unlock();
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<TextureClient> texture = tc->mTextureClient;
|
|
tc->Unlock();
|
|
|
|
return texture.forget();
|
|
}
|
|
|
|
bool
|
|
TextureClient::IsSharedWithCompositor() const {
|
|
return mActor && mActor->IPCOpen();
|
|
}
|
|
|
|
void
|
|
TextureClient::AddFlags(TextureFlags aFlags)
|
|
{
|
|
MOZ_ASSERT(!IsSharedWithCompositor() ||
|
|
((GetFlags() & TextureFlags::RECYCLE) && !IsAddedToCompositableClient()));
|
|
mFlags |= aFlags;
|
|
}
|
|
|
|
void
|
|
TextureClient::RemoveFlags(TextureFlags aFlags)
|
|
{
|
|
MOZ_ASSERT(!IsSharedWithCompositor() ||
|
|
((GetFlags() & TextureFlags::RECYCLE) && !IsAddedToCompositableClient()));
|
|
mFlags &= ~aFlags;
|
|
}
|
|
|
|
void
|
|
TextureClient::RecycleTexture(TextureFlags aFlags)
|
|
{
|
|
MOZ_ASSERT(GetFlags() & TextureFlags::RECYCLE);
|
|
MOZ_ASSERT(!mIsLocked);
|
|
|
|
mAddedToCompositableClient = false;
|
|
if (mFlags != aFlags) {
|
|
mFlags = aFlags;
|
|
}
|
|
}
|
|
|
|
void
|
|
TextureClient::SetAddedToCompositableClient()
|
|
{
|
|
if (!mAddedToCompositableClient) {
|
|
mAddedToCompositableClient = true;
|
|
if(!(GetFlags() & TextureFlags::RECYCLE)) {
|
|
return;
|
|
}
|
|
MOZ_ASSERT(!mIsLocked);
|
|
LockActor();
|
|
if (IsValid() && mActor && !mActor->mDestroyed && mActor->IPCOpen()) {
|
|
mActor->SendRecycleTexture(mFlags);
|
|
}
|
|
UnlockActor();
|
|
}
|
|
}
|
|
|
|
void CancelTextureClientRecycle(uint64_t aTextureId, LayersIPCChannel* aAllocator)
|
|
{
|
|
if (!aAllocator) {
|
|
return;
|
|
}
|
|
MessageLoop* msgLoop = nullptr;
|
|
msgLoop = aAllocator->GetMessageLoop();
|
|
if (!msgLoop) {
|
|
return;
|
|
}
|
|
if (MessageLoop::current() == msgLoop) {
|
|
aAllocator->CancelWaitForRecycle(aTextureId);
|
|
} else {
|
|
msgLoop->PostTask(NewRunnableFunction("CancelTextureClientRecycleRunnable",
|
|
CancelTextureClientRecycle,
|
|
aTextureId, aAllocator));
|
|
}
|
|
}
|
|
|
|
void
|
|
TextureClient::CancelWaitForRecycle()
|
|
{
|
|
if (GetFlags() & TextureFlags::RECYCLE) {
|
|
CancelTextureClientRecycle(mSerial, GetAllocator());
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* static */ void
|
|
TextureClient::TextureClientRecycleCallback(TextureClient* aClient, void* aClosure)
|
|
{
|
|
MOZ_ASSERT(aClient->GetRecycleAllocator());
|
|
aClient->GetRecycleAllocator()->RecycleTextureClient(aClient);
|
|
}
|
|
|
|
void
|
|
TextureClient::SetRecycleAllocator(ITextureClientRecycleAllocator* aAllocator)
|
|
{
|
|
mRecycleAllocator = aAllocator;
|
|
if (aAllocator) {
|
|
SetRecycleCallback(TextureClientRecycleCallback, nullptr);
|
|
} else {
|
|
ClearRecycleCallback();
|
|
}
|
|
}
|
|
|
|
bool
|
|
TextureClient::InitIPDLActor(CompositableForwarder* aForwarder)
|
|
{
|
|
MOZ_ASSERT(aForwarder && aForwarder->GetTextureForwarder()->GetMessageLoop() == mAllocator->GetMessageLoop());
|
|
|
|
if (mActor && !mActor->IPCOpen()) {
|
|
return false;
|
|
}
|
|
|
|
if (mActor && !mActor->mDestroyed) {
|
|
CompositableForwarder* currentFwd = mActor->mCompositableForwarder;
|
|
TextureForwarder* currentTexFwd = mActor->mTextureForwarder;
|
|
if (currentFwd != aForwarder) {
|
|
// It's a bit iffy but right now ShadowLayerForwarder inherits TextureForwarder
|
|
// even though it should not. ShadowLayerForwarder::GetTextureForwarder actually
|
|
// returns a pointer to the CompositorBridgeChild.
|
|
// It's Ok for a texture to move from a ShadowLayerForwarder to another, but
|
|
// not form a CompositorBridgeChild to another (they use different channels).
|
|
if (currentTexFwd && currentTexFwd != aForwarder->GetTextureForwarder()) {
|
|
gfxCriticalError() << "Attempt to move a texture to a different channel CF.";
|
|
return false;
|
|
}
|
|
if (currentFwd && currentFwd->GetCompositorBackendType() != aForwarder->GetCompositorBackendType()) {
|
|
gfxCriticalError() << "Attempt to move a texture to different compositor backend.";
|
|
return false;
|
|
}
|
|
if (ShadowLayerForwarder* forwarder = aForwarder->AsLayerForwarder()) {
|
|
// Do the DOM labeling.
|
|
if (nsIEventTarget* target = forwarder->GetEventTarget()) {
|
|
forwarder->GetCompositorBridgeChild()->ReplaceEventTargetForActor(
|
|
mActor, target);
|
|
}
|
|
}
|
|
mActor->mCompositableForwarder = aForwarder;
|
|
}
|
|
return true;
|
|
}
|
|
MOZ_ASSERT(!mActor || mActor->mDestroyed, "Cannot use a texture on several IPC channels.");
|
|
|
|
SurfaceDescriptor desc;
|
|
if (!ToSurfaceDescriptor(desc)) {
|
|
return false;
|
|
}
|
|
|
|
// Try external image id allocation.
|
|
mExternalImageId = aForwarder->GetTextureForwarder()->GetNextExternalImageId();
|
|
|
|
nsIEventTarget* target = nullptr;
|
|
// Get the layers id if the forwarder is a ShadowLayerForwarder.
|
|
if (ShadowLayerForwarder* forwarder = aForwarder->AsLayerForwarder()) {
|
|
target = forwarder->GetEventTarget();
|
|
}
|
|
|
|
ReadLockDescriptor readLockDescriptor = null_t();
|
|
if (mReadLock) {
|
|
mReadLock->Serialize(readLockDescriptor, GetAllocator()->GetParentPid());
|
|
}
|
|
|
|
PTextureChild* actor = aForwarder->GetTextureForwarder()->CreateTexture(
|
|
desc,
|
|
readLockDescriptor,
|
|
aForwarder->GetCompositorBackendType(),
|
|
GetFlags(),
|
|
mSerial,
|
|
mExternalImageId,
|
|
target);
|
|
|
|
if (!actor) {
|
|
gfxCriticalNote << static_cast<int32_t>(desc.type()) << ", "
|
|
<< static_cast<int32_t>(aForwarder->GetCompositorBackendType()) << ", "
|
|
<< static_cast<uint32_t>(GetFlags())
|
|
<< ", " << mSerial;
|
|
return false;
|
|
}
|
|
|
|
mActor = static_cast<TextureChild*>(actor);
|
|
mActor->mCompositableForwarder = aForwarder;
|
|
mActor->mTextureForwarder = aForwarder->GetTextureForwarder();
|
|
mActor->mTextureClient = this;
|
|
mActor->mMainThreadOnly = !!(mFlags & TextureFlags::DEALLOCATE_MAIN_THREAD);
|
|
|
|
// If the TextureClient is already locked, we have to lock TextureChild's mutex
|
|
// since it will be unlocked in TextureClient::Unlock.
|
|
if (mIsLocked) {
|
|
LockActor();
|
|
}
|
|
|
|
return mActor->IPCOpen();
|
|
}
|
|
|
|
bool
|
|
TextureClient::InitIPDLActor(KnowsCompositor* aForwarder)
|
|
{
|
|
MOZ_ASSERT(aForwarder && aForwarder->GetTextureForwarder()->GetMessageLoop() == mAllocator->GetMessageLoop());
|
|
TextureForwarder* fwd = aForwarder->GetTextureForwarder();
|
|
if (mActor && !mActor->mDestroyed) {
|
|
CompositableForwarder* currentFwd = mActor->mCompositableForwarder;
|
|
TextureForwarder* currentTexFwd = mActor->mTextureForwarder;
|
|
|
|
if (currentFwd) {
|
|
gfxCriticalError() << "Attempt to remove a texture from a CompositableForwarder.";
|
|
return false;
|
|
}
|
|
|
|
if (currentTexFwd && currentTexFwd != fwd) {
|
|
gfxCriticalError() << "Attempt to move a texture to a different channel TF.";
|
|
return false;
|
|
}
|
|
mActor->mTextureForwarder = fwd;
|
|
return true;
|
|
}
|
|
MOZ_ASSERT(!mActor || mActor->mDestroyed, "Cannot use a texture on several IPC channels.");
|
|
|
|
SurfaceDescriptor desc;
|
|
if (!ToSurfaceDescriptor(desc)) {
|
|
return false;
|
|
}
|
|
|
|
// Try external image id allocation.
|
|
mExternalImageId = aForwarder->GetTextureForwarder()->GetNextExternalImageId();
|
|
|
|
ReadLockDescriptor readLockDescriptor = null_t();
|
|
if (mReadLock) {
|
|
mReadLock->Serialize(readLockDescriptor, GetAllocator()->GetParentPid());
|
|
}
|
|
|
|
PTextureChild* actor = fwd->CreateTexture(
|
|
desc,
|
|
readLockDescriptor,
|
|
aForwarder->GetCompositorBackendType(),
|
|
GetFlags(),
|
|
mSerial,
|
|
mExternalImageId);
|
|
if (!actor) {
|
|
gfxCriticalNote << static_cast<int32_t>(desc.type()) << ", "
|
|
<< static_cast<int32_t>(aForwarder->GetCompositorBackendType()) << ", "
|
|
<< static_cast<uint32_t>(GetFlags())
|
|
<< ", " << mSerial;
|
|
return false;
|
|
}
|
|
|
|
mActor = static_cast<TextureChild*>(actor);
|
|
mActor->mTextureForwarder = fwd;
|
|
mActor->mTextureClient = this;
|
|
mActor->mMainThreadOnly = !!(mFlags & TextureFlags::DEALLOCATE_MAIN_THREAD);
|
|
|
|
// If the TextureClient is already locked, we have to lock TextureChild's mutex
|
|
// since it will be unlocked in TextureClient::Unlock.
|
|
if (mIsLocked) {
|
|
LockActor();
|
|
}
|
|
|
|
return mActor->IPCOpen();
|
|
}
|
|
|
|
PTextureChild*
|
|
TextureClient::GetIPDLActor()
|
|
{
|
|
return mActor;
|
|
}
|
|
|
|
static inline gfx::BackendType
|
|
BackendTypeForBackendSelector(LayersBackend aLayersBackend, BackendSelector aSelector)
|
|
{
|
|
switch (aSelector) {
|
|
case BackendSelector::Canvas:
|
|
return gfxPlatform::GetPlatform()->GetPreferredCanvasBackend();
|
|
case BackendSelector::Content:
|
|
return gfxPlatform::GetPlatform()->GetContentBackendFor(aLayersBackend);
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Unknown backend selector");
|
|
return gfx::BackendType::NONE;
|
|
}
|
|
};
|
|
|
|
// static
|
|
already_AddRefed<TextureClient>
|
|
TextureClient::CreateForDrawing(KnowsCompositor* aAllocator,
|
|
gfx::SurfaceFormat aFormat,
|
|
gfx::IntSize aSize,
|
|
BackendSelector aSelector,
|
|
TextureFlags aTextureFlags,
|
|
TextureAllocationFlags aAllocFlags)
|
|
{
|
|
LayersBackend layersBackend = aAllocator->GetCompositorBackendType();
|
|
if (aAllocator->SupportsTextureDirectMapping() &&
|
|
std::max(aSize.width, aSize.height) <= aAllocator->GetMaxTextureSize()) {
|
|
aAllocFlags = TextureAllocationFlags(aAllocFlags | ALLOC_ALLOW_DIRECT_MAPPING);
|
|
}
|
|
return TextureClient::CreateForDrawing(aAllocator->GetTextureForwarder(),
|
|
aFormat, aSize,
|
|
layersBackend,
|
|
aAllocator->GetMaxTextureSize(),
|
|
aSelector,
|
|
aTextureFlags,
|
|
aAllocFlags);
|
|
}
|
|
|
|
// static
|
|
already_AddRefed<TextureClient>
|
|
TextureClient::CreateForDrawing(TextureForwarder* aAllocator,
|
|
gfx::SurfaceFormat aFormat,
|
|
gfx::IntSize aSize,
|
|
LayersBackend aLayersBackend,
|
|
int32_t aMaxTextureSize,
|
|
BackendSelector aSelector,
|
|
TextureFlags aTextureFlags,
|
|
TextureAllocationFlags aAllocFlags)
|
|
{
|
|
gfx::BackendType moz2DBackend = BackendTypeForBackendSelector(aLayersBackend, aSelector);
|
|
|
|
// also test the validity of aAllocator
|
|
if (!aAllocator || !aAllocator->IPCOpen()) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (!gfx::Factory::AllowedSurfaceSize(aSize)) {
|
|
return nullptr;
|
|
}
|
|
|
|
TextureData* data = nullptr;
|
|
|
|
#ifdef XP_WIN
|
|
if ((aLayersBackend == LayersBackend::LAYERS_D3D11 ||
|
|
aLayersBackend == LayersBackend::LAYERS_WR) &&
|
|
(moz2DBackend == gfx::BackendType::DIRECT2D ||
|
|
moz2DBackend == gfx::BackendType::DIRECT2D1_1 ||
|
|
(!!(aAllocFlags & ALLOC_FOR_OUT_OF_BAND_CONTENT) &&
|
|
DeviceManagerDx::Get()->GetContentDevice())) &&
|
|
aSize.width <= aMaxTextureSize &&
|
|
aSize.height <= aMaxTextureSize &&
|
|
!(aAllocFlags & ALLOC_UPDATE_FROM_SURFACE))
|
|
{
|
|
data = DXGITextureData::Create(aSize, aFormat, aAllocFlags);
|
|
}
|
|
|
|
if (aLayersBackend != LayersBackend::LAYERS_WR &&
|
|
!data && aFormat == SurfaceFormat::B8G8R8X8 &&
|
|
moz2DBackend == gfx::BackendType::CAIRO &&
|
|
NS_IsMainThread()) {
|
|
data = DIBTextureData::Create(aSize, aFormat, aAllocator);
|
|
}
|
|
#endif
|
|
|
|
#ifdef MOZ_X11
|
|
gfxSurfaceType type =
|
|
gfxPlatform::GetPlatform()->ScreenReferenceSurface()->GetType();
|
|
|
|
if (!data && aLayersBackend == LayersBackend::LAYERS_BASIC &&
|
|
moz2DBackend == gfx::BackendType::CAIRO &&
|
|
type == gfxSurfaceType::Xlib)
|
|
{
|
|
data = X11TextureData::Create(aSize, aFormat, aTextureFlags, aAllocator);
|
|
}
|
|
if (!data && aLayersBackend == LayersBackend::LAYERS_OPENGL &&
|
|
type == gfxSurfaceType::Xlib &&
|
|
aFormat != SurfaceFormat::A8 &&
|
|
gl::sGLXLibrary.UseTextureFromPixmap())
|
|
{
|
|
data = X11TextureData::Create(aSize, aFormat, aTextureFlags, aAllocator);
|
|
}
|
|
#endif
|
|
|
|
#ifdef XP_MACOSX
|
|
if (!data && gfxPrefs::UseIOSurfaceTextures()) {
|
|
data = MacIOSurfaceTextureData::Create(aSize, aFormat, moz2DBackend);
|
|
}
|
|
#endif
|
|
|
|
#ifdef MOZ_WIDGET_ANDROID
|
|
if (!data && gfxPrefs::UseSurfaceTextureTextures()) {
|
|
data = AndroidNativeWindowTextureData::Create(aSize, aFormat);
|
|
}
|
|
#endif
|
|
|
|
if (data) {
|
|
return MakeAndAddRef<TextureClient>(data, aTextureFlags, aAllocator);
|
|
}
|
|
|
|
// Can't do any better than a buffer texture client.
|
|
return TextureClient::CreateForRawBufferAccess(aAllocator, aFormat, aSize,
|
|
moz2DBackend, aLayersBackend,
|
|
aTextureFlags, aAllocFlags);
|
|
}
|
|
|
|
// static
|
|
already_AddRefed<TextureClient>
|
|
TextureClient::CreateFromSurface(KnowsCompositor* aAllocator,
|
|
gfx::SourceSurface* aSurface,
|
|
BackendSelector aSelector,
|
|
TextureFlags aTextureFlags,
|
|
TextureAllocationFlags aAllocFlags)
|
|
{
|
|
// also test the validity of aAllocator
|
|
if (!aAllocator || !aAllocator->GetTextureForwarder()->IPCOpen()) {
|
|
return nullptr;
|
|
}
|
|
|
|
gfx::IntSize size = aSurface->GetSize();
|
|
|
|
if (!gfx::Factory::AllowedSurfaceSize(size)) {
|
|
return nullptr;
|
|
}
|
|
|
|
TextureData* data = nullptr;
|
|
#if defined(XP_WIN)
|
|
LayersBackend layersBackend = aAllocator->GetCompositorBackendType();
|
|
gfx::BackendType moz2DBackend = BackendTypeForBackendSelector(layersBackend, aSelector);
|
|
|
|
int32_t maxTextureSize = aAllocator->GetMaxTextureSize();
|
|
|
|
if ((layersBackend == LayersBackend::LAYERS_D3D11 ||
|
|
layersBackend == LayersBackend::LAYERS_WR) &&
|
|
(moz2DBackend == gfx::BackendType::DIRECT2D ||
|
|
moz2DBackend == gfx::BackendType::DIRECT2D1_1 ||
|
|
(!!(aAllocFlags & ALLOC_FOR_OUT_OF_BAND_CONTENT) &&
|
|
DeviceManagerDx::Get()->GetContentDevice())) &&
|
|
size.width <= maxTextureSize &&
|
|
size.height <= maxTextureSize)
|
|
{
|
|
data = D3D11TextureData::Create(aSurface, aAllocFlags);
|
|
}
|
|
#endif
|
|
|
|
if (data) {
|
|
return MakeAndAddRef<TextureClient>(data, aTextureFlags, aAllocator->GetTextureForwarder());
|
|
}
|
|
|
|
// Fall back to using UpdateFromSurface
|
|
|
|
TextureAllocationFlags allocFlags = TextureAllocationFlags(aAllocFlags | ALLOC_UPDATE_FROM_SURFACE);
|
|
RefPtr<TextureClient> client = CreateForDrawing(aAllocator, aSurface->GetFormat(), size,
|
|
aSelector, aTextureFlags, allocFlags);
|
|
if (!client) {
|
|
return nullptr;
|
|
}
|
|
|
|
TextureClientAutoLock autoLock(client, OpenMode::OPEN_WRITE_ONLY);
|
|
if (!autoLock.Succeeded()) {
|
|
return nullptr;
|
|
}
|
|
|
|
client->UpdateFromSurface(aSurface);
|
|
return client.forget();
|
|
}
|
|
|
|
// static
|
|
already_AddRefed<TextureClient>
|
|
TextureClient::CreateForRawBufferAccess(KnowsCompositor* aAllocator,
|
|
gfx::SurfaceFormat aFormat,
|
|
gfx::IntSize aSize,
|
|
gfx::BackendType aMoz2DBackend,
|
|
TextureFlags aTextureFlags,
|
|
TextureAllocationFlags aAllocFlags)
|
|
{
|
|
// If we exceed the max texture size for the GPU, then just fall back to no
|
|
// texture direct mapping. If it becomes a problem we can implement tiling
|
|
// logic inside DirectMapTextureSource to allow this.
|
|
bool supportsTextureDirectMapping = aAllocator->SupportsTextureDirectMapping() &&
|
|
std::max(aSize.width, aSize.height) <= aAllocator->GetMaxTextureSize();
|
|
if (supportsTextureDirectMapping) {
|
|
aAllocFlags = TextureAllocationFlags(aAllocFlags | ALLOC_ALLOW_DIRECT_MAPPING);
|
|
} else {
|
|
aAllocFlags = TextureAllocationFlags(aAllocFlags & ~ALLOC_ALLOW_DIRECT_MAPPING);
|
|
}
|
|
return CreateForRawBufferAccess(aAllocator->GetTextureForwarder(),
|
|
aFormat, aSize, aMoz2DBackend,
|
|
aAllocator->GetCompositorBackendType(),
|
|
aTextureFlags, aAllocFlags);
|
|
}
|
|
|
|
// static
|
|
already_AddRefed<TextureClient>
|
|
TextureClient::CreateForRawBufferAccess(LayersIPCChannel* aAllocator,
|
|
gfx::SurfaceFormat aFormat,
|
|
gfx::IntSize aSize,
|
|
gfx::BackendType aMoz2DBackend,
|
|
LayersBackend aLayersBackend,
|
|
TextureFlags aTextureFlags,
|
|
TextureAllocationFlags aAllocFlags)
|
|
{
|
|
// also test the validity of aAllocator
|
|
if (!aAllocator || !aAllocator->IPCOpen()) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (aAllocFlags & ALLOC_DISALLOW_BUFFERTEXTURECLIENT) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (!gfx::Factory::AllowedSurfaceSize(aSize)) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (aFormat == SurfaceFormat::B8G8R8X8) {
|
|
// Skia doesn't support RGBX, so ensure we clear the buffer for the proper alpha values.
|
|
aAllocFlags = TextureAllocationFlags(aAllocFlags | ALLOC_CLEAR_BUFFER);
|
|
}
|
|
|
|
// Note that we ignore the backend type if we get here. It should only be D2D
|
|
// or Skia, and D2D does not support data surfaces. Therefore it is safe to
|
|
// force the buffer to be Skia.
|
|
NS_WARNING_ASSERTION(aMoz2DBackend == gfx::BackendType::SKIA ||
|
|
aMoz2DBackend == gfx::BackendType::DIRECT2D ||
|
|
aMoz2DBackend == gfx::BackendType::DIRECT2D1_1,
|
|
"Unsupported TextureClient backend type");
|
|
|
|
TextureData* texData = BufferTextureData::Create(aSize, aFormat, gfx::BackendType::SKIA,
|
|
aLayersBackend, aTextureFlags,
|
|
aAllocFlags, aAllocator);
|
|
if (!texData) {
|
|
return nullptr;
|
|
}
|
|
|
|
return MakeAndAddRef<TextureClient>(texData, aTextureFlags, aAllocator);
|
|
}
|
|
|
|
// static
|
|
already_AddRefed<TextureClient>
|
|
TextureClient::CreateForYCbCr(KnowsCompositor* aAllocator,
|
|
gfx::IntSize aYSize,
|
|
uint32_t aYStride,
|
|
gfx::IntSize aCbCrSize,
|
|
uint32_t aCbCrStride,
|
|
StereoMode aStereoMode,
|
|
YUVColorSpace aYUVColorSpace,
|
|
uint32_t aBitDepth,
|
|
TextureFlags aTextureFlags)
|
|
{
|
|
if (!aAllocator || !aAllocator->GetLayersIPCActor()->IPCOpen()) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (!gfx::Factory::AllowedSurfaceSize(aYSize)) {
|
|
return nullptr;
|
|
}
|
|
|
|
TextureData* data =
|
|
BufferTextureData::CreateForYCbCr(aAllocator,
|
|
aYSize, aYStride,
|
|
aCbCrSize, aCbCrStride,
|
|
aStereoMode, aYUVColorSpace,
|
|
aBitDepth, aTextureFlags);
|
|
if (!data) {
|
|
return nullptr;
|
|
}
|
|
|
|
return MakeAndAddRef<TextureClient>(data, aTextureFlags,
|
|
aAllocator->GetTextureForwarder());
|
|
}
|
|
|
|
TextureClient::TextureClient(TextureData* aData,
|
|
TextureFlags aFlags,
|
|
LayersIPCChannel* aAllocator)
|
|
: AtomicRefCountedWithFinalize("TextureClient")
|
|
, mAllocator(aAllocator)
|
|
, mActor(nullptr)
|
|
, mData(aData)
|
|
, mFlags(aFlags)
|
|
, mOpenMode(OpenMode::OPEN_NONE)
|
|
#ifdef DEBUG
|
|
, mExpectedDtRefs(0)
|
|
#endif
|
|
, mIsLocked(false)
|
|
, mIsReadLocked(false)
|
|
, mUpdated(false)
|
|
, mAddedToCompositableClient(false)
|
|
, mWorkaroundAnnoyingSharedSurfaceLifetimeIssues(false)
|
|
, mWorkaroundAnnoyingSharedSurfaceOwnershipIssues(false)
|
|
, mFwdTransactionId(0)
|
|
, mSerial(++sSerialCounter)
|
|
#ifdef GFX_DEBUG_TRACK_CLIENTS_IN_POOL
|
|
, mPoolTracker(nullptr)
|
|
#endif
|
|
{
|
|
mData->FillInfo(mInfo);
|
|
mFlags |= mData->GetTextureFlags();
|
|
|
|
if (mFlags & TextureFlags::NON_BLOCKING_READ_LOCK) {
|
|
MOZ_ASSERT(!(mFlags & TextureFlags::BLOCKING_READ_LOCK));
|
|
EnableReadLock();
|
|
} else if (mFlags & TextureFlags::BLOCKING_READ_LOCK) {
|
|
MOZ_ASSERT(!(mFlags & TextureFlags::NON_BLOCKING_READ_LOCK));
|
|
EnableBlockingReadLock();
|
|
}
|
|
}
|
|
|
|
bool TextureClient::CopyToTextureClient(TextureClient* aTarget,
|
|
const gfx::IntRect* aRect,
|
|
const gfx::IntPoint* aPoint)
|
|
{
|
|
MOZ_ASSERT(IsLocked());
|
|
MOZ_ASSERT(aTarget->IsLocked());
|
|
|
|
if (!aTarget->CanExposeDrawTarget() || !CanExposeDrawTarget()) {
|
|
return false;
|
|
}
|
|
|
|
RefPtr<DrawTarget> destinationTarget = aTarget->BorrowDrawTarget();
|
|
if (!destinationTarget) {
|
|
gfxWarning() << "TextureClient::CopyToTextureClient (dest) failed in BorrowDrawTarget";
|
|
return false;
|
|
}
|
|
|
|
RefPtr<DrawTarget> sourceTarget = BorrowDrawTarget();
|
|
if (!sourceTarget) {
|
|
gfxWarning() << "TextureClient::CopyToTextureClient (src) failed in BorrowDrawTarget";
|
|
return false;
|
|
}
|
|
|
|
RefPtr<gfx::SourceSurface> source = sourceTarget->Snapshot();
|
|
destinationTarget->CopySurface(source,
|
|
aRect ? *aRect : gfx::IntRect(gfx::IntPoint(0, 0), GetSize()),
|
|
aPoint ? *aPoint : gfx::IntPoint(0, 0));
|
|
return true;
|
|
}
|
|
|
|
already_AddRefed<gfx::DataSourceSurface>
|
|
TextureClient::GetAsSurface()
|
|
{
|
|
if (!Lock(OpenMode::OPEN_READ)) {
|
|
return nullptr;
|
|
}
|
|
RefPtr<gfx::DataSourceSurface> data;
|
|
{ // scope so that the DrawTarget is destroyed before Unlock()
|
|
RefPtr<gfx::DrawTarget> dt = BorrowDrawTarget();
|
|
if (dt) {
|
|
RefPtr<gfx::SourceSurface> surf = dt->Snapshot();
|
|
if (surf) {
|
|
data = surf->GetDataSurface();
|
|
}
|
|
}
|
|
}
|
|
Unlock();
|
|
return data.forget();
|
|
}
|
|
|
|
void
|
|
TextureClient::PrintInfo(std::stringstream& aStream, const char* aPrefix)
|
|
{
|
|
aStream << aPrefix;
|
|
aStream << nsPrintfCString("TextureClient (0x%p)", this).get();
|
|
AppendToString(aStream, GetSize(), " [size=", "]");
|
|
AppendToString(aStream, GetFormat(), " [format=", "]");
|
|
AppendToString(aStream, mFlags, " [flags=", "]");
|
|
|
|
#ifdef MOZ_DUMP_PAINTING
|
|
if (gfxPrefs::LayersDumpTexture()) {
|
|
nsAutoCString pfx(aPrefix);
|
|
pfx += " ";
|
|
|
|
aStream << "\n" << pfx.get() << "Surface: ";
|
|
RefPtr<gfx::DataSourceSurface> dSurf = GetAsSurface();
|
|
if (dSurf) {
|
|
aStream << gfxUtils::GetAsLZ4Base64Str(dSurf).get();
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void
|
|
TextureClient::GPUVideoDesc(SurfaceDescriptorGPUVideo* const aOutDesc)
|
|
{
|
|
const auto handle = GetSerial();
|
|
|
|
GPUVideoSubDescriptor subDesc = null_t();
|
|
MOZ_RELEASE_ASSERT(mData);
|
|
mData->GetSubDescriptor(&subDesc);
|
|
|
|
*aOutDesc = SurfaceDescriptorGPUVideo(handle, std::move(subDesc));
|
|
}
|
|
|
|
class MemoryTextureReadLock : public NonBlockingTextureReadLock {
|
|
public:
|
|
MemoryTextureReadLock();
|
|
|
|
~MemoryTextureReadLock();
|
|
|
|
virtual bool ReadLock() override;
|
|
|
|
virtual int32_t ReadUnlock() override;
|
|
|
|
virtual int32_t GetReadCount() override;
|
|
|
|
virtual LockType GetType() override { return TYPE_NONBLOCKING_MEMORY; }
|
|
|
|
virtual bool IsValid() const override { return true; };
|
|
|
|
virtual bool Serialize(ReadLockDescriptor& aOutput, base::ProcessId aOther) override;
|
|
|
|
Atomic<int32_t> mReadCount;
|
|
};
|
|
|
|
// The cross-prcess implementation of TextureReadLock.
|
|
//
|
|
// Since we don't use cross-process reference counting for the ReadLock objects,
|
|
// we use the lock's internal counter as a way to know when to deallocate the
|
|
// underlying shmem section: when the counter is equal to 1, it means that the
|
|
// lock is not "held" (the texture is writable), when the counter is equal to 0
|
|
// it means that we can safely deallocate the shmem section without causing a race
|
|
// condition with the other process.
|
|
class ShmemTextureReadLock : public NonBlockingTextureReadLock {
|
|
public:
|
|
struct ShmReadLockInfo {
|
|
int32_t readCount;
|
|
};
|
|
|
|
explicit ShmemTextureReadLock(LayersIPCChannel* aAllocator);
|
|
|
|
~ShmemTextureReadLock();
|
|
|
|
virtual bool ReadLock() override;
|
|
|
|
virtual int32_t ReadUnlock() override;
|
|
|
|
virtual int32_t GetReadCount() override;
|
|
|
|
virtual bool IsValid() const override { return mAllocSuccess; };
|
|
|
|
virtual LockType GetType() override { return TYPE_NONBLOCKING_SHMEM; }
|
|
|
|
virtual bool Serialize(ReadLockDescriptor& aOutput, base::ProcessId aOther) override;
|
|
|
|
mozilla::layers::ShmemSection& GetShmemSection() { return mShmemSection; }
|
|
|
|
explicit ShmemTextureReadLock(const mozilla::layers::ShmemSection& aShmemSection)
|
|
: mShmemSection(aShmemSection)
|
|
, mAllocSuccess(true)
|
|
{
|
|
MOZ_COUNT_CTOR(ShmemTextureReadLock);
|
|
}
|
|
|
|
ShmReadLockInfo* GetShmReadLockInfoPtr()
|
|
{
|
|
return reinterpret_cast<ShmReadLockInfo*>
|
|
(mShmemSection.shmem().get<char>() + mShmemSection.offset());
|
|
}
|
|
|
|
RefPtr<LayersIPCChannel> mClientAllocator;
|
|
mozilla::layers::ShmemSection mShmemSection;
|
|
bool mAllocSuccess;
|
|
};
|
|
|
|
class CrossProcessSemaphoreReadLock : public TextureReadLock
|
|
{
|
|
public:
|
|
CrossProcessSemaphoreReadLock()
|
|
: mSemaphore(CrossProcessSemaphore::Create("TextureReadLock", 1))
|
|
, mShared(false)
|
|
{}
|
|
explicit CrossProcessSemaphoreReadLock(CrossProcessSemaphoreHandle aHandle)
|
|
: mSemaphore(CrossProcessSemaphore::Create(aHandle))
|
|
, mShared(false)
|
|
{}
|
|
|
|
virtual bool ReadLock() override
|
|
{
|
|
if (!IsValid()) {
|
|
return false;
|
|
}
|
|
return mSemaphore->Wait();
|
|
}
|
|
virtual bool TryReadLock(TimeDuration aTimeout) override
|
|
{
|
|
if (!IsValid()) {
|
|
return false;
|
|
}
|
|
return mSemaphore->Wait(Some(aTimeout));
|
|
}
|
|
virtual int32_t ReadUnlock() override
|
|
{
|
|
if (!IsValid()) {
|
|
return 1;
|
|
}
|
|
mSemaphore->Signal();
|
|
return 1;
|
|
}
|
|
virtual bool IsValid() const override { return !!mSemaphore; }
|
|
|
|
virtual bool Serialize(ReadLockDescriptor& aOutput, base::ProcessId aOther) override;
|
|
|
|
virtual LockType GetType() override { return TYPE_CROSS_PROCESS_SEMAPHORE; }
|
|
|
|
UniquePtr<CrossProcessSemaphore> mSemaphore;
|
|
bool mShared;
|
|
};
|
|
|
|
// static
|
|
already_AddRefed<TextureReadLock>
|
|
TextureReadLock::Deserialize(const ReadLockDescriptor& aDescriptor, ISurfaceAllocator* aAllocator)
|
|
{
|
|
switch (aDescriptor.type()) {
|
|
case ReadLockDescriptor::TShmemSection: {
|
|
const ShmemSection& section = aDescriptor.get_ShmemSection();
|
|
MOZ_RELEASE_ASSERT(section.shmem().IsReadable());
|
|
return MakeAndAddRef<ShmemTextureReadLock>(section);
|
|
}
|
|
case ReadLockDescriptor::Tuintptr_t: {
|
|
if (!aAllocator->IsSameProcess()) {
|
|
// Trying to use a memory based lock instead of a shmem based one in
|
|
// the cross-process case is a bad security violation.
|
|
NS_ERROR("A client process may be trying to peek at the host's address space!");
|
|
return nullptr;
|
|
}
|
|
RefPtr<TextureReadLock> lock = reinterpret_cast<MemoryTextureReadLock*>(
|
|
aDescriptor.get_uintptr_t()
|
|
);
|
|
|
|
MOZ_ASSERT(lock);
|
|
if (lock) {
|
|
// The corresponding AddRef is in MemoryTextureReadLock::Serialize
|
|
lock.get()->Release();
|
|
}
|
|
|
|
return lock.forget();
|
|
}
|
|
case ReadLockDescriptor::TCrossProcessSemaphoreDescriptor: {
|
|
return MakeAndAddRef<CrossProcessSemaphoreReadLock>(aDescriptor.get_CrossProcessSemaphoreDescriptor().sem());
|
|
}
|
|
case ReadLockDescriptor::Tnull_t: {
|
|
return nullptr;
|
|
}
|
|
default: {
|
|
// Invalid descriptor.
|
|
MOZ_DIAGNOSTIC_ASSERT(false);
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
// static
|
|
already_AddRefed<TextureReadLock>
|
|
NonBlockingTextureReadLock::Create(LayersIPCChannel* aAllocator)
|
|
{
|
|
if (aAllocator->IsSameProcess()) {
|
|
// If our compositor is in the same process, we can save some cycles by not
|
|
// using shared memory.
|
|
return MakeAndAddRef<MemoryTextureReadLock>();
|
|
}
|
|
|
|
return MakeAndAddRef<ShmemTextureReadLock>(aAllocator);
|
|
}
|
|
|
|
MemoryTextureReadLock::MemoryTextureReadLock()
|
|
: mReadCount(1)
|
|
{
|
|
MOZ_COUNT_CTOR(MemoryTextureReadLock);
|
|
}
|
|
|
|
MemoryTextureReadLock::~MemoryTextureReadLock()
|
|
{
|
|
// One read count that is added in constructor.
|
|
MOZ_ASSERT(mReadCount == 1);
|
|
MOZ_COUNT_DTOR(MemoryTextureReadLock);
|
|
}
|
|
|
|
bool
|
|
MemoryTextureReadLock::Serialize(ReadLockDescriptor& aOutput, base::ProcessId aOther)
|
|
{
|
|
// AddRef here and Release when receiving on the host side to make sure the
|
|
// reference count doesn't go to zero before the host receives the message.
|
|
// see TextureReadLock::Deserialize
|
|
this->AddRef();
|
|
aOutput = ReadLockDescriptor(uintptr_t(this));
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
MemoryTextureReadLock::ReadLock()
|
|
{
|
|
NS_ASSERT_OWNINGTHREAD(MemoryTextureReadLock);
|
|
|
|
++mReadCount;
|
|
return true;
|
|
}
|
|
|
|
int32_t
|
|
MemoryTextureReadLock::ReadUnlock()
|
|
{
|
|
int32_t readCount = --mReadCount;
|
|
MOZ_ASSERT(readCount >= 0);
|
|
|
|
return readCount;
|
|
}
|
|
|
|
int32_t
|
|
MemoryTextureReadLock::GetReadCount()
|
|
{
|
|
NS_ASSERT_OWNINGTHREAD(MemoryTextureReadLock);
|
|
return mReadCount;
|
|
}
|
|
|
|
ShmemTextureReadLock::ShmemTextureReadLock(LayersIPCChannel* aAllocator)
|
|
: mClientAllocator(aAllocator)
|
|
, mAllocSuccess(false)
|
|
{
|
|
MOZ_COUNT_CTOR(ShmemTextureReadLock);
|
|
MOZ_ASSERT(mClientAllocator);
|
|
MOZ_ASSERT(mClientAllocator->GetTileLockAllocator());
|
|
#define MOZ_ALIGN_WORD(x) (((x) + 3) & ~3)
|
|
if (mClientAllocator->GetTileLockAllocator()->AllocShmemSection(
|
|
MOZ_ALIGN_WORD(sizeof(ShmReadLockInfo)), &mShmemSection)) {
|
|
ShmReadLockInfo* info = GetShmReadLockInfoPtr();
|
|
info->readCount = 1;
|
|
mAllocSuccess = true;
|
|
}
|
|
}
|
|
|
|
ShmemTextureReadLock::~ShmemTextureReadLock()
|
|
{
|
|
if (mClientAllocator) {
|
|
// Release one read count that is added in constructor.
|
|
// The count is kept for calling GetReadCount() by TextureClientPool.
|
|
ReadUnlock();
|
|
}
|
|
MOZ_COUNT_DTOR(ShmemTextureReadLock);
|
|
}
|
|
|
|
bool
|
|
ShmemTextureReadLock::Serialize(ReadLockDescriptor& aOutput, base::ProcessId aOther)
|
|
{
|
|
aOutput = ReadLockDescriptor(GetShmemSection());
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
ShmemTextureReadLock::ReadLock() {
|
|
NS_ASSERT_OWNINGTHREAD(ShmemTextureReadLock);
|
|
if (!mAllocSuccess) {
|
|
return false;
|
|
}
|
|
ShmReadLockInfo* info = GetShmReadLockInfoPtr();
|
|
PR_ATOMIC_INCREMENT(&info->readCount);
|
|
return true;
|
|
}
|
|
|
|
int32_t
|
|
ShmemTextureReadLock::ReadUnlock() {
|
|
if (!mAllocSuccess) {
|
|
return 0;
|
|
}
|
|
ShmReadLockInfo* info = GetShmReadLockInfoPtr();
|
|
int32_t readCount = PR_ATOMIC_DECREMENT(&info->readCount);
|
|
MOZ_ASSERT(readCount >= 0);
|
|
if (readCount <= 0) {
|
|
if (mClientAllocator && mClientAllocator->GetTileLockAllocator()) {
|
|
mClientAllocator->GetTileLockAllocator()->DeallocShmemSection(mShmemSection);
|
|
} else {
|
|
// we are on the compositor process, or IPC is down.
|
|
FixedSizeSmallShmemSectionAllocator::FreeShmemSection(mShmemSection);
|
|
}
|
|
}
|
|
return readCount;
|
|
}
|
|
|
|
int32_t
|
|
ShmemTextureReadLock::GetReadCount() {
|
|
NS_ASSERT_OWNINGTHREAD(ShmemTextureReadLock);
|
|
if (!mAllocSuccess) {
|
|
return 0;
|
|
}
|
|
ShmReadLockInfo* info = GetShmReadLockInfoPtr();
|
|
return info->readCount;
|
|
}
|
|
|
|
bool
|
|
CrossProcessSemaphoreReadLock::Serialize(ReadLockDescriptor& aOutput, base::ProcessId aOther)
|
|
{
|
|
if (!mShared && IsValid()) {
|
|
aOutput = ReadLockDescriptor(CrossProcessSemaphoreDescriptor(mSemaphore->ShareToProcess(aOther)));
|
|
mSemaphore->CloseHandle();
|
|
mShared = true;
|
|
return true;
|
|
} else {
|
|
return mShared;
|
|
}
|
|
}
|
|
|
|
void
|
|
TextureClient::EnableBlockingReadLock()
|
|
{
|
|
if (!mReadLock) {
|
|
mReadLock = new CrossProcessSemaphoreReadLock();
|
|
}
|
|
}
|
|
|
|
void
|
|
TextureClient::AddPaintThreadRef()
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
mPaintThreadRefs += 1;
|
|
}
|
|
|
|
void
|
|
TextureClient::DropPaintThreadRef()
|
|
{
|
|
MOZ_RELEASE_ASSERT(PaintThread::Get()->IsOnPaintWorkerThread());
|
|
MOZ_RELEASE_ASSERT(mPaintThreadRefs >= 1);
|
|
mPaintThreadRefs -= 1;
|
|
}
|
|
|
|
bool
|
|
UpdateYCbCrTextureClient(TextureClient* aTexture, const PlanarYCbCrData& aData)
|
|
{
|
|
MOZ_ASSERT(aTexture);
|
|
MOZ_ASSERT(aTexture->IsLocked());
|
|
MOZ_ASSERT(aTexture->GetFormat() == gfx::SurfaceFormat::YUV, "This textureClient can only use YCbCr data");
|
|
MOZ_ASSERT(!aTexture->IsImmutable());
|
|
MOZ_ASSERT(aTexture->IsValid());
|
|
MOZ_ASSERT(aData.mCbSkip == aData.mCrSkip);
|
|
|
|
MappedYCbCrTextureData mapped;
|
|
if (!aTexture->BorrowMappedYCbCrData(mapped)) {
|
|
NS_WARNING("Failed to extract YCbCr info!");
|
|
return false;
|
|
}
|
|
|
|
MappedYCbCrTextureData srcData;
|
|
srcData.y.data = aData.mYChannel;
|
|
srcData.y.size = aData.mYSize;
|
|
srcData.y.stride = aData.mYStride;
|
|
srcData.y.skip = aData.mYSkip;
|
|
MOZ_ASSERT(aData.mBitDepth == 8 || (aData.mBitDepth > 8 && aData.mBitDepth <= 16));
|
|
srcData.y.bytesPerPixel = (aData.mBitDepth > 8) ? 2 : 1;
|
|
srcData.cb.data = aData.mCbChannel;
|
|
srcData.cb.size = aData.mCbCrSize;
|
|
srcData.cb.stride = aData.mCbCrStride;
|
|
srcData.cb.skip = aData.mCbSkip;
|
|
srcData.cb.bytesPerPixel = (aData.mBitDepth > 8) ? 2 : 1;
|
|
srcData.cr.data = aData.mCrChannel;
|
|
srcData.cr.size = aData.mCbCrSize;
|
|
srcData.cr.stride = aData.mCbCrStride;
|
|
srcData.cr.skip = aData.mCrSkip;
|
|
srcData.cr.bytesPerPixel = (aData.mBitDepth > 8) ? 2 : 1;
|
|
srcData.metadata = nullptr;
|
|
|
|
if (!srcData.CopyInto(mapped)) {
|
|
NS_WARNING("Failed to copy image data!");
|
|
return false;
|
|
}
|
|
|
|
if (TextureRequiresLocking(aTexture->GetFlags())) {
|
|
// We don't have support for proper locking yet, so we'll
|
|
// have to be immutable instead.
|
|
aTexture->MarkImmutable();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
already_AddRefed<TextureClient>
|
|
TextureClient::CreateWithData(TextureData* aData, TextureFlags aFlags, LayersIPCChannel* aAllocator)
|
|
{
|
|
if (!aData) {
|
|
return nullptr;
|
|
}
|
|
return MakeAndAddRef<TextureClient>(aData, aFlags, aAllocator);
|
|
}
|
|
|
|
template<class PixelDataType>
|
|
static void
|
|
copyData(PixelDataType* aDst,
|
|
const MappedYCbCrChannelData& aChannelDst,
|
|
PixelDataType* aSrc,
|
|
const MappedYCbCrChannelData& aChannelSrc)
|
|
{
|
|
uint8_t* srcByte = reinterpret_cast<uint8_t*>(aSrc);
|
|
const int32_t srcSkip = aChannelSrc.skip + 1;
|
|
uint8_t* dstByte = reinterpret_cast<uint8_t*>(aDst);
|
|
const int32_t dstSkip = aChannelDst.skip + 1;
|
|
for (int32_t i = 0; i < aChannelSrc.size.height; ++i) {
|
|
for (int32_t j = 0; j < aChannelSrc.size.width; ++j) {
|
|
*aDst = *aSrc;
|
|
aSrc += srcSkip;
|
|
aDst += dstSkip;
|
|
}
|
|
srcByte += aChannelSrc.stride;
|
|
aSrc = reinterpret_cast<PixelDataType*>(srcByte);
|
|
dstByte += aChannelDst.stride;
|
|
aDst = reinterpret_cast<PixelDataType*>(dstByte);
|
|
}
|
|
}
|
|
|
|
bool
|
|
MappedYCbCrChannelData::CopyInto(MappedYCbCrChannelData& aDst)
|
|
{
|
|
if (!data || !aDst.data || size != aDst.size) {
|
|
return false;
|
|
}
|
|
|
|
if (stride == aDst.stride && skip == aDst.skip) {
|
|
// fast path!
|
|
// We assume that the padding in the destination is there for alignment
|
|
// purposes and doesn't contain useful data.
|
|
memcpy(aDst.data, data, stride * size.height);
|
|
return true;
|
|
}
|
|
|
|
if (aDst.skip == 0 && skip == 0) {
|
|
// fast-ish path
|
|
for (int32_t i = 0; i < size.height; ++i) {
|
|
memcpy(aDst.data + i * aDst.stride,
|
|
data + i * stride,
|
|
size.width * bytesPerPixel);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
MOZ_ASSERT(bytesPerPixel == 1 || bytesPerPixel == 2);
|
|
// slow path
|
|
if (bytesPerPixel == 1) {
|
|
copyData(aDst.data, aDst, data, *this);
|
|
} else if (bytesPerPixel == 2) {
|
|
if (skip != 0) {
|
|
// The skip value definition doesn't specify if it's in bytes, or in
|
|
// "pixels". We will assume the later. There are currently no decoders
|
|
// returning HDR content with a skip value different than zero anyway.
|
|
NS_WARNING("skip value non zero for HDR content, please verify code "
|
|
"(see bug 1421187)");
|
|
}
|
|
copyData(reinterpret_cast<uint16_t*>(aDst.data),
|
|
aDst,
|
|
reinterpret_cast<uint16_t*>(data),
|
|
*this);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
} // namespace layers
|
|
} // namespace mozilla
|