1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/layers/client/ClientThebesLayer.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,166 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "ClientThebesLayer.h"
1.10 +#include "ClientTiledThebesLayer.h" // for ClientTiledThebesLayer
1.11 +#include "SimpleTiledContentClient.h"
1.12 +#include <stdint.h> // for uint32_t
1.13 +#include "GeckoProfiler.h" // for PROFILER_LABEL
1.14 +#include "client/ClientLayerManager.h" // for ClientLayerManager, etc
1.15 +#include "gfxContext.h" // for gfxContext
1.16 +#include "gfxRect.h" // for gfxRect
1.17 +#include "gfxPrefs.h" // for gfxPrefs
1.18 +#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
1.19 +#include "mozilla/gfx/2D.h" // for DrawTarget
1.20 +#include "mozilla/gfx/Matrix.h" // for Matrix
1.21 +#include "mozilla/gfx/Rect.h" // for Rect, IntRect
1.22 +#include "mozilla/gfx/Types.h" // for Float, etc
1.23 +#include "mozilla/layers/LayersTypes.h"
1.24 +#include "mozilla/Preferences.h"
1.25 +#include "nsAutoPtr.h" // for nsRefPtr
1.26 +#include "nsCOMPtr.h" // for already_AddRefed
1.27 +#include "nsISupportsImpl.h" // for Layer::AddRef, etc
1.28 +#include "nsRect.h" // for nsIntRect
1.29 +#include "gfx2DGlue.h"
1.30 +
1.31 +using namespace mozilla::gfx;
1.32 +
1.33 +namespace mozilla {
1.34 +namespace layers {
1.35 +
1.36 +void
1.37 +ClientThebesLayer::PaintThebes()
1.38 +{
1.39 + PROFILER_LABEL("ClientThebesLayer", "PaintThebes");
1.40 + NS_ASSERTION(ClientManager()->InDrawing(),
1.41 + "Can only draw in drawing phase");
1.42 +
1.43 + uint32_t flags = RotatedContentBuffer::PAINT_CAN_DRAW_ROTATED;
1.44 +#ifndef MOZ_WIDGET_ANDROID
1.45 + if (ClientManager()->CompositorMightResample()) {
1.46 + flags |= RotatedContentBuffer::PAINT_WILL_RESAMPLE;
1.47 + }
1.48 + if (!(flags & RotatedContentBuffer::PAINT_WILL_RESAMPLE)) {
1.49 + if (MayResample()) {
1.50 + flags |= RotatedContentBuffer::PAINT_WILL_RESAMPLE;
1.51 + }
1.52 + }
1.53 +#endif
1.54 + PaintState state =
1.55 + mContentClient->BeginPaintBuffer(this, flags);
1.56 + mValidRegion.Sub(mValidRegion, state.mRegionToInvalidate);
1.57 +
1.58 + if (!state.mRegionToDraw.IsEmpty() && !ClientManager()->GetThebesLayerCallback()) {
1.59 + ClientManager()->SetTransactionIncomplete();
1.60 + return;
1.61 + }
1.62 +
1.63 + // The area that became invalid and is visible needs to be repainted
1.64 + // (this could be the whole visible area if our buffer switched
1.65 + // from RGB to RGBA, because we might need to repaint with
1.66 + // subpixel AA)
1.67 + state.mRegionToInvalidate.And(state.mRegionToInvalidate,
1.68 + GetEffectiveVisibleRegion());
1.69 +
1.70 + bool didUpdate = false;
1.71 + RotatedContentBuffer::DrawIterator iter;
1.72 + while (DrawTarget* target = mContentClient->BorrowDrawTargetForPainting(state, &iter)) {
1.73 + SetAntialiasingFlags(this, target);
1.74 +
1.75 + nsRefPtr<gfxContext> ctx = gfxContext::ContextForDrawTarget(target);
1.76 +
1.77 + ClientManager()->GetThebesLayerCallback()(this,
1.78 + ctx,
1.79 + iter.mDrawRegion,
1.80 + state.mClip,
1.81 + state.mRegionToInvalidate,
1.82 + ClientManager()->GetThebesLayerCallbackData());
1.83 +
1.84 + ctx = nullptr;
1.85 + mContentClient->ReturnDrawTargetToBuffer(target);
1.86 + didUpdate = true;
1.87 + }
1.88 +
1.89 + if (didUpdate) {
1.90 + Mutated();
1.91 +
1.92 + mValidRegion.Or(mValidRegion, state.mRegionToDraw);
1.93 +
1.94 + ContentClientRemote* contentClientRemote = static_cast<ContentClientRemote*>(mContentClient.get());
1.95 + MOZ_ASSERT(contentClientRemote->GetIPDLActor());
1.96 +
1.97 + // Hold(this) ensures this layer is kept alive through the current transaction
1.98 + // The ContentClient assumes this layer is kept alive (e.g., in CreateBuffer),
1.99 + // so deleting this Hold for whatever reason will break things.
1.100 + ClientManager()->Hold(this);
1.101 + contentClientRemote->Updated(state.mRegionToDraw,
1.102 + mVisibleRegion,
1.103 + state.mDidSelfCopy);
1.104 + }
1.105 +}
1.106 +
1.107 +void
1.108 +ClientThebesLayer::RenderLayer()
1.109 +{
1.110 + if (GetMaskLayer()) {
1.111 + ToClientLayer(GetMaskLayer())->RenderLayer();
1.112 + }
1.113 +
1.114 + if (!mContentClient) {
1.115 + mContentClient = ContentClient::CreateContentClient(ClientManager()->AsShadowForwarder());
1.116 + if (!mContentClient) {
1.117 + return;
1.118 + }
1.119 + mContentClient->Connect();
1.120 + ClientManager()->AsShadowForwarder()->Attach(mContentClient, this);
1.121 + MOZ_ASSERT(mContentClient->GetForwarder());
1.122 + }
1.123 +
1.124 + mContentClient->BeginPaint();
1.125 + PaintThebes();
1.126 + mContentClient->EndPaint();
1.127 +}
1.128 +
1.129 +already_AddRefed<ThebesLayer>
1.130 +ClientLayerManager::CreateThebesLayer()
1.131 +{
1.132 + return CreateThebesLayerWithHint(NONE);
1.133 +}
1.134 +
1.135 +already_AddRefed<ThebesLayer>
1.136 +ClientLayerManager::CreateThebesLayerWithHint(ThebesLayerCreationHint aHint)
1.137 +{
1.138 + NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
1.139 + if (
1.140 +#ifdef MOZ_B2G
1.141 + aHint == SCROLLABLE &&
1.142 +#endif
1.143 + gfxPrefs::LayersTilesEnabled() &&
1.144 + (AsShadowForwarder()->GetCompositorBackendType() == LayersBackend::LAYERS_OPENGL ||
1.145 + AsShadowForwarder()->GetCompositorBackendType() == LayersBackend::LAYERS_D3D9 ||
1.146 + AsShadowForwarder()->GetCompositorBackendType() == LayersBackend::LAYERS_D3D11)) {
1.147 + if (gfxPrefs::LayersUseSimpleTiles()) {
1.148 + nsRefPtr<SimpleClientTiledThebesLayer> layer =
1.149 + new SimpleClientTiledThebesLayer(this);
1.150 + CREATE_SHADOW(Thebes);
1.151 + return layer.forget();
1.152 + } else {
1.153 + nsRefPtr<ClientTiledThebesLayer> layer =
1.154 + new ClientTiledThebesLayer(this);
1.155 + CREATE_SHADOW(Thebes);
1.156 + return layer.forget();
1.157 + }
1.158 + } else
1.159 + {
1.160 + nsRefPtr<ClientThebesLayer> layer =
1.161 + new ClientThebesLayer(this);
1.162 + CREATE_SHADOW(Thebes);
1.163 + return layer.forget();
1.164 + }
1.165 +}
1.166 +
1.167 +
1.168 +}
1.169 +}
