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https://gitlab.winehq.org/wine/wine-gecko.git
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6536947736
The rectangle parameter is currently not used --- all callers always pass the full canvas bounds. In the long term, we probably won't want this parameter since all implementations should be doing accelerated drawing direct to buffers with no intermediate copies, hence there will be no need to optimize the size of those copies. Plus, performance-sensitive testcases tend to paint most or all of the canvas on every frame anyway.
640 lines
19 KiB
C++
640 lines
19 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=8 et :
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*/
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at:
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Code.
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*
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* The Initial Developer of the Original Code is
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* The Mozilla Foundation
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Chris Jones <jones.chris.g@gmail.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include <set>
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#include <vector>
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#include "gfxSharedImageSurface.h"
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#include "mozilla/ipc/SharedMemorySysV.h"
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#include "mozilla/layers/PLayerChild.h"
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#include "mozilla/layers/PLayersChild.h"
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#include "mozilla/layers/PLayersParent.h"
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#include "ShadowLayers.h"
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#include "ShadowLayerChild.h"
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using namespace mozilla::ipc;
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namespace mozilla {
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namespace layers {
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typedef nsTArray<SurfaceDescriptor> BufferArray;
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typedef std::vector<Edit> EditVector;
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typedef std::set<ShadowableLayer*> ShadowableLayerSet;
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class Transaction
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{
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public:
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Transaction() : mOpen(PR_FALSE) {}
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void Begin() { mOpen = PR_TRUE; }
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void AddEdit(const Edit& aEdit)
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{
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NS_ABORT_IF_FALSE(!Finished(), "forgot BeginTransaction?");
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mCset.push_back(aEdit);
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}
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void AddPaint(const Edit& aPaint)
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{
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NS_ABORT_IF_FALSE(!Finished(), "forgot BeginTransaction?");
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mPaints.push_back(aPaint);
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}
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void AddMutant(ShadowableLayer* aLayer)
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{
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NS_ABORT_IF_FALSE(!Finished(), "forgot BeginTransaction?");
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mMutants.insert(aLayer);
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}
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void AddBufferToDestroy(gfxSharedImageSurface* aBuffer)
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{
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return AddBufferToDestroy(aBuffer->GetShmem());
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}
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void AddBufferToDestroy(const SurfaceDescriptor& aBuffer)
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{
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NS_ABORT_IF_FALSE(!Finished(), "forgot BeginTransaction?");
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mDyingBuffers.AppendElement(aBuffer);
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}
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void End()
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{
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mCset.clear();
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mPaints.clear();
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mDyingBuffers.Clear();
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mMutants.clear();
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mOpen = PR_FALSE;
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}
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PRBool Empty() const {
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return mCset.empty() && mPaints.empty() && mMutants.empty();
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}
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PRBool Finished() const { return !mOpen && Empty(); }
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EditVector mCset;
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EditVector mPaints;
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BufferArray mDyingBuffers;
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ShadowableLayerSet mMutants;
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private:
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PRBool mOpen;
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// disabled
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Transaction(const Transaction&);
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Transaction& operator=(const Transaction&);
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};
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struct AutoTxnEnd {
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AutoTxnEnd(Transaction* aTxn) : mTxn(aTxn) {}
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~AutoTxnEnd() { mTxn->End(); }
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Transaction* mTxn;
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};
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ShadowLayerForwarder::ShadowLayerForwarder()
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: mShadowManager(NULL)
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, mParentBackend(LayerManager::LAYERS_NONE)
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{
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mTxn = new Transaction();
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}
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ShadowLayerForwarder::~ShadowLayerForwarder()
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{
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NS_ABORT_IF_FALSE(mTxn->Finished(), "unfinished transaction?");
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delete mTxn;
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}
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void
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ShadowLayerForwarder::BeginTransaction()
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{
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NS_ABORT_IF_FALSE(HasShadowManager(), "no manager to forward to");
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NS_ABORT_IF_FALSE(mTxn->Finished(), "uncommitted txn?");
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mTxn->Begin();
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}
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static PLayerChild*
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Shadow(ShadowableLayer* aLayer)
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{
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return aLayer->GetShadow();
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}
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template<typename OpCreateT>
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static void
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CreatedLayer(Transaction* aTxn, ShadowableLayer* aLayer)
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{
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aTxn->AddEdit(OpCreateT(NULL, Shadow(aLayer)));
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}
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void
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ShadowLayerForwarder::CreatedThebesLayer(ShadowableLayer* aThebes)
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{
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CreatedLayer<OpCreateThebesLayer>(mTxn, aThebes);
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}
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void
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ShadowLayerForwarder::CreatedContainerLayer(ShadowableLayer* aContainer)
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{
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CreatedLayer<OpCreateContainerLayer>(mTxn, aContainer);
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}
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void
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ShadowLayerForwarder::CreatedImageLayer(ShadowableLayer* aImage)
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{
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CreatedLayer<OpCreateImageLayer>(mTxn, aImage);
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}
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void
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ShadowLayerForwarder::CreatedColorLayer(ShadowableLayer* aColor)
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{
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CreatedLayer<OpCreateColorLayer>(mTxn, aColor);
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}
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void
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ShadowLayerForwarder::CreatedCanvasLayer(ShadowableLayer* aCanvas)
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{
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CreatedLayer<OpCreateCanvasLayer>(mTxn, aCanvas);
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}
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void
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ShadowLayerForwarder::CreatedThebesBuffer(ShadowableLayer* aThebes,
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const nsIntRegion& aFrontValidRegion,
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float aXResolution,
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float aYResolution,
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const nsIntRect& aBufferRect,
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const SurfaceDescriptor& aTempFrontBuffer)
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{
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OptionalThebesBuffer buffer = null_t();
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if (SurfaceDescriptor::T__None != aTempFrontBuffer.type()) {
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buffer = ThebesBuffer(aTempFrontBuffer,
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aBufferRect,
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nsIntPoint(0, 0));
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}
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mTxn->AddEdit(OpCreateThebesBuffer(NULL, Shadow(aThebes),
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buffer,
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aFrontValidRegion,
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aXResolution,
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aYResolution));
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}
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void
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ShadowLayerForwarder::CreatedImageBuffer(ShadowableLayer* aImage,
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nsIntSize aSize,
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gfxSharedImageSurface* aTempFrontSurface)
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{
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mTxn->AddEdit(OpCreateImageBuffer(NULL, Shadow(aImage),
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aSize,
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aTempFrontSurface->GetShmem()));
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}
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void
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ShadowLayerForwarder::CreatedCanvasBuffer(ShadowableLayer* aCanvas,
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nsIntSize aSize,
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gfxSharedImageSurface* aTempFrontSurface)
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{
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mTxn->AddEdit(OpCreateCanvasBuffer(NULL, Shadow(aCanvas),
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aSize,
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aTempFrontSurface->GetShmem()));
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}
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void
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ShadowLayerForwarder::DestroyedThebesBuffer(ShadowableLayer* aThebes,
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const SurfaceDescriptor& aBackBufferToDestroy)
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{
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mTxn->AddEdit(OpDestroyThebesFrontBuffer(NULL, Shadow(aThebes)));
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mTxn->AddBufferToDestroy(aBackBufferToDestroy);
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}
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void
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ShadowLayerForwarder::DestroyedImageBuffer(ShadowableLayer* aImage)
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{
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mTxn->AddEdit(OpDestroyImageFrontBuffer(NULL, Shadow(aImage)));
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}
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void
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ShadowLayerForwarder::DestroyedCanvasBuffer(ShadowableLayer* aCanvas)
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{
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mTxn->AddEdit(OpDestroyCanvasFrontBuffer(NULL, Shadow(aCanvas)));
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}
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void
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ShadowLayerForwarder::Mutated(ShadowableLayer* aMutant)
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{
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mTxn->AddMutant(aMutant);
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}
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void
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ShadowLayerForwarder::SetRoot(ShadowableLayer* aRoot)
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{
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mTxn->AddEdit(OpSetRoot(NULL, Shadow(aRoot)));
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}
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void
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ShadowLayerForwarder::InsertAfter(ShadowableLayer* aContainer,
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ShadowableLayer* aChild,
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ShadowableLayer* aAfter)
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{
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if (aAfter)
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mTxn->AddEdit(OpInsertAfter(NULL, Shadow(aContainer),
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NULL, Shadow(aChild),
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NULL, Shadow(aAfter)));
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else
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mTxn->AddEdit(OpAppendChild(NULL, Shadow(aContainer),
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NULL, Shadow(aChild)));
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}
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void
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ShadowLayerForwarder::RemoveChild(ShadowableLayer* aContainer,
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ShadowableLayer* aChild)
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{
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mTxn->AddEdit(OpRemoveChild(NULL, Shadow(aContainer),
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NULL, Shadow(aChild)));
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}
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void
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ShadowLayerForwarder::PaintedThebesBuffer(ShadowableLayer* aThebes,
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const nsIntRegion& aUpdatedRegion,
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const nsIntRect& aBufferRect,
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const nsIntPoint& aBufferRotation,
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const SurfaceDescriptor& aNewFrontBuffer)
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{
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mTxn->AddPaint(OpPaintThebesBuffer(NULL, Shadow(aThebes),
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ThebesBuffer(aNewFrontBuffer,
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aBufferRect,
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aBufferRotation),
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aUpdatedRegion));
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}
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void
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ShadowLayerForwarder::PaintedImage(ShadowableLayer* aImage,
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gfxSharedImageSurface* aNewFrontSurface)
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{
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mTxn->AddPaint(OpPaintImage(NULL, Shadow(aImage),
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aNewFrontSurface->GetShmem()));
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}
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void
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ShadowLayerForwarder::PaintedCanvas(ShadowableLayer* aCanvas,
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gfxSharedImageSurface* aNewFrontSurface)
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{
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mTxn->AddPaint(OpPaintCanvas(NULL, Shadow(aCanvas),
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aNewFrontSurface->GetShmem()));
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}
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PRBool
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ShadowLayerForwarder::EndTransaction(InfallibleTArray<EditReply>* aReplies)
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{
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NS_ABORT_IF_FALSE(HasShadowManager(), "no manager to forward to");
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NS_ABORT_IF_FALSE(!mTxn->Finished(), "forgot BeginTransaction?");
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AutoTxnEnd _(mTxn);
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if (mTxn->Empty()) {
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MOZ_LAYERS_LOG(("[LayersForwarder] 0-length cset (?), skipping Update()"));
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return PR_TRUE;
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}
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MOZ_LAYERS_LOG(("[LayersForwarder] destroying buffers..."));
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for (PRUint32 i = 0; i < mTxn->mDyingBuffers.Length(); ++i) {
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DestroySharedSurface(&mTxn->mDyingBuffers[i]);
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}
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MOZ_LAYERS_LOG(("[LayersForwarder] building transaction..."));
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// We purposely add attribute-change ops to the final changeset
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// before we add paint ops. This allows layers to record the
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// attribute changes before new pixels arrive, which can be useful
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// for setting up back/front buffers.
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for (ShadowableLayerSet::const_iterator it = mTxn->mMutants.begin();
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it != mTxn->mMutants.end(); ++it) {
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ShadowableLayer* shadow = *it;
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Layer* mutant = shadow->AsLayer();
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NS_ABORT_IF_FALSE(!!mutant, "unshadowable layer?");
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LayerAttributes attrs;
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CommonLayerAttributes& common = attrs.common();
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common.visibleRegion() = mutant->GetVisibleRegion();
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common.transform() = mutant->GetTransform();
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common.contentFlags() = mutant->GetContentFlags();
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common.opacity() = mutant->GetOpacity();
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common.useClipRect() = !!mutant->GetClipRect();
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common.clipRect() = (common.useClipRect() ?
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*mutant->GetClipRect() : nsIntRect());
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common.useTileSourceRect() = !!mutant->GetTileSourceRect();
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common.tileSourceRect() = (common.useTileSourceRect() ?
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*mutant->GetTileSourceRect() : nsIntRect());
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attrs.specific() = null_t();
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mutant->FillSpecificAttributes(attrs.specific());
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mTxn->AddEdit(OpSetLayerAttributes(NULL, Shadow(shadow), attrs));
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}
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AutoInfallibleTArray<Edit, 10> cset;
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size_t nCsets = mTxn->mCset.size() + mTxn->mPaints.size();
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NS_ABORT_IF_FALSE(nCsets > 0, "should have bailed by now");
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cset.SetCapacity(nCsets);
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if (!mTxn->mCset.empty()) {
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cset.AppendElements(&mTxn->mCset.front(), mTxn->mCset.size());
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}
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// Paints after non-paint ops, including attribute changes. See
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// above.
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if (!mTxn->mPaints.empty()) {
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cset.AppendElements(&mTxn->mPaints.front(), mTxn->mPaints.size());
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}
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MOZ_LAYERS_LOG(("[LayersForwarder] syncing before send..."));
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PlatformSyncBeforeUpdate();
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MOZ_LAYERS_LOG(("[LayersForwarder] sending transaction..."));
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if (!mShadowManager->SendUpdate(cset, aReplies)) {
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MOZ_LAYERS_LOG(("[LayersForwarder] WARNING: sending transaction failed!"));
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return PR_FALSE;
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}
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MOZ_LAYERS_LOG(("[LayersForwarder] ... done"));
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return PR_TRUE;
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}
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LayersBackend
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ShadowLayerForwarder::GetParentBackendType()
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{
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if (mParentBackend == LayerManager::LAYERS_NONE) {
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LayersBackend backend;
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if (mShadowManager->SendGetParentType(&backend)) {
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mParentBackend = backend;
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}
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}
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return mParentBackend;
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}
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static gfxASurface::gfxImageFormat
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OptimalFormatFor(gfxASurface::gfxContentType aContent)
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{
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switch (aContent) {
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case gfxASurface::CONTENT_COLOR:
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#ifdef MOZ_GFX_OPTIMIZE_MOBILE
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return gfxASurface::ImageFormatRGB16_565;
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#else
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return gfxASurface::ImageFormatRGB24;
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#endif
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case gfxASurface::CONTENT_ALPHA:
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return gfxASurface::ImageFormatA8;
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case gfxASurface::CONTENT_COLOR_ALPHA:
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return gfxASurface::ImageFormatARGB32;
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default:
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NS_NOTREACHED("unknown gfxContentType");
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return gfxASurface::ImageFormatARGB32;
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}
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}
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static SharedMemory::SharedMemoryType
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OptimalShmemType()
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{
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#if defined(MOZ_PLATFORM_MAEMO) && defined(MOZ_HAVE_SHAREDMEMORYSYSV)
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// Use SysV memory because maemo5 on the N900 only allots 64MB to
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// /dev/shm, even though it has 1GB(!!) of system memory. Sys V shm
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// is allocated from a different pool. We don't want an arbitrary
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// cap that's much much lower than available memory on the memory we
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// use for layers.
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return SharedMemory::TYPE_SYSV;
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#else
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return SharedMemory::TYPE_BASIC;
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#endif
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}
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PRBool
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ShadowLayerForwarder::AllocDoubleBuffer(const gfxIntSize& aSize,
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gfxASurface::gfxContentType aContent,
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gfxSharedImageSurface** aFrontBuffer,
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gfxSharedImageSurface** aBackBuffer)
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{
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return AllocBuffer(aSize, aContent, aFrontBuffer) &&
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AllocBuffer(aSize, aContent, aBackBuffer);
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}
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void
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ShadowLayerForwarder::DestroySharedSurface(gfxSharedImageSurface* aSurface)
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{
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mShadowManager->DeallocShmem(aSurface->GetShmem());
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}
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PRBool
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ShadowLayerForwarder::AllocBuffer(const gfxIntSize& aSize,
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gfxASurface::gfxContentType aContent,
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gfxSharedImageSurface** aBuffer)
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{
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NS_ABORT_IF_FALSE(HasShadowManager(), "no manager to forward to");
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gfxASurface::gfxImageFormat format = OptimalFormatFor(aContent);
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SharedMemory::SharedMemoryType shmemType = OptimalShmemType();
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nsRefPtr<gfxSharedImageSurface> back =
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gfxSharedImageSurface::CreateUnsafe(mShadowManager, aSize, format, shmemType);
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if (!back)
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return PR_FALSE;
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*aBuffer = nsnull;
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back.swap(*aBuffer);
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return PR_TRUE;
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}
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PRBool
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ShadowLayerForwarder::AllocDoubleBuffer(const gfxIntSize& aSize,
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gfxASurface::gfxContentType aContent,
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SurfaceDescriptor* aFrontBuffer,
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SurfaceDescriptor* aBackBuffer)
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{
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PRBool tryPlatformSurface = PR_TRUE;
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#ifdef DEBUG
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tryPlatformSurface = !PR_GetEnv("MOZ_LAYERS_FORCE_SHMEM_SURFACES");
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#endif
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if (tryPlatformSurface &&
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PlatformAllocDoubleBuffer(aSize, aContent, aFrontBuffer, aBackBuffer)) {
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return PR_TRUE;
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}
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nsRefPtr<gfxSharedImageSurface> front;
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nsRefPtr<gfxSharedImageSurface> back;
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if (!AllocDoubleBuffer(aSize, aContent,
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getter_AddRefs(front), getter_AddRefs(back))) {
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return PR_FALSE;
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}
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*aFrontBuffer = front->GetShmem();
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*aBackBuffer = back->GetShmem();
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return PR_TRUE;
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}
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PRBool
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ShadowLayerForwarder::AllocBuffer(const gfxIntSize& aSize,
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gfxASurface::gfxContentType aContent,
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SurfaceDescriptor* aBuffer)
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{
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PRBool tryPlatformSurface = PR_TRUE;
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#ifdef DEBUG
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tryPlatformSurface = !PR_GetEnv("MOZ_LAYERS_FORCE_SHMEM_SURFACES");
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#endif
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if (tryPlatformSurface &&
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PlatformAllocBuffer(aSize, aContent, aBuffer)) {
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return PR_TRUE;
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}
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nsRefPtr<gfxSharedImageSurface> buffer;
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if (!AllocBuffer(aSize, aContent,
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getter_AddRefs(buffer)))
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return PR_FALSE;
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|
|
*aBuffer = buffer->GetShmem();
|
|
return PR_TRUE;
|
|
}
|
|
|
|
/*static*/ already_AddRefed<gfxASurface>
|
|
ShadowLayerForwarder::OpenDescriptor(const SurfaceDescriptor& aSurface)
|
|
{
|
|
nsRefPtr<gfxASurface> surf = PlatformOpenDescriptor(aSurface);
|
|
if (surf) {
|
|
return surf.forget();
|
|
}
|
|
|
|
switch (aSurface.type()) {
|
|
case SurfaceDescriptor::TShmem: {
|
|
surf = gfxSharedImageSurface::Open(aSurface.get_Shmem());
|
|
return surf.forget();
|
|
}
|
|
default:
|
|
NS_RUNTIMEABORT("unexpected SurfaceDescriptor type!");
|
|
return nsnull;
|
|
}
|
|
}
|
|
|
|
// Destroy the Shmem SurfaceDescriptor |aSurface|.
|
|
template<class ShmemDeallocator>
|
|
static void
|
|
DestroySharedShmemSurface(SurfaceDescriptor* aSurface,
|
|
ShmemDeallocator* aDeallocator)
|
|
{
|
|
switch (aSurface->type()) {
|
|
case SurfaceDescriptor::TShmem: {
|
|
aDeallocator->DeallocShmem(aSurface->get_Shmem());
|
|
*aSurface = SurfaceDescriptor();
|
|
return;
|
|
}
|
|
default:
|
|
NS_RUNTIMEABORT("unexpected SurfaceDescriptor type!");
|
|
return;
|
|
}
|
|
}
|
|
|
|
void
|
|
ShadowLayerForwarder::DestroySharedSurface(SurfaceDescriptor* aSurface)
|
|
{
|
|
if (PlatformDestroySharedSurface(aSurface)) {
|
|
return;
|
|
}
|
|
DestroySharedShmemSurface(aSurface, mShadowManager);
|
|
}
|
|
|
|
|
|
PLayerChild*
|
|
ShadowLayerForwarder::ConstructShadowFor(ShadowableLayer* aLayer)
|
|
{
|
|
NS_ABORT_IF_FALSE(HasShadowManager(), "no manager to forward to");
|
|
return mShadowManager->SendPLayerConstructor(new ShadowLayerChild(aLayer));
|
|
}
|
|
|
|
|
|
void
|
|
ShadowLayerManager::DestroySharedSurface(gfxSharedImageSurface* aSurface,
|
|
PLayersParent* aDeallocator)
|
|
{
|
|
aDeallocator->DeallocShmem(aSurface->GetShmem());
|
|
}
|
|
|
|
void
|
|
ShadowLayerManager::DestroySharedSurface(SurfaceDescriptor* aSurface,
|
|
PLayersParent* aDeallocator)
|
|
{
|
|
if (PlatformDestroySharedSurface(aSurface)) {
|
|
return;
|
|
}
|
|
DestroySharedShmemSurface(aSurface, aDeallocator);
|
|
}
|
|
|
|
|
|
#if !defined(MOZ_HAVE_PLATFORM_SPECIFIC_LAYER_BUFFERS)
|
|
|
|
PRBool
|
|
ShadowLayerForwarder::PlatformAllocDoubleBuffer(const gfxIntSize&,
|
|
gfxASurface::gfxContentType,
|
|
SurfaceDescriptor*,
|
|
SurfaceDescriptor*)
|
|
{
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
ShadowLayerForwarder::PlatformAllocBuffer(const gfxIntSize&,
|
|
gfxASurface::gfxContentType,
|
|
SurfaceDescriptor*)
|
|
{
|
|
return PR_FALSE;
|
|
}
|
|
|
|
/*static*/ already_AddRefed<gfxASurface>
|
|
ShadowLayerForwarder::PlatformOpenDescriptor(const SurfaceDescriptor&)
|
|
{
|
|
return nsnull;
|
|
}
|
|
|
|
PRBool
|
|
ShadowLayerForwarder::PlatformDestroySharedSurface(SurfaceDescriptor*)
|
|
{
|
|
return PR_FALSE;
|
|
}
|
|
|
|
/*static*/ void
|
|
ShadowLayerForwarder::PlatformSyncBeforeUpdate()
|
|
{
|
|
}
|
|
|
|
PRBool
|
|
ShadowLayerManager::PlatformDestroySharedSurface(SurfaceDescriptor*)
|
|
{
|
|
return PR_FALSE;
|
|
}
|
|
|
|
/*static*/ void
|
|
ShadowLayerManager::PlatformSyncBeforeReplyUpdate()
|
|
{
|
|
}
|
|
|
|
#endif // !defined(MOZ_HAVE_PLATFORM_SPECIFIC_LAYER_BUFFERS)
|
|
|
|
} // namespace layers
|
|
} // namespace mozilla
|