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comparison: gfx/layers/client/ClientThebesLayer.cpp
gfx/layers/client/ClientThebesLayer.cpp
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "ClientThebesLayer.h" | |
| 7 #include "ClientTiledThebesLayer.h" // for ClientTiledThebesLayer | |
| 8 #include "SimpleTiledContentClient.h" | |
| 9 #include <stdint.h> // for uint32_t | |
| 10 #include "GeckoProfiler.h" // for PROFILER_LABEL | |
| 11 #include "client/ClientLayerManager.h" // for ClientLayerManager, etc | |
| 12 #include "gfxContext.h" // for gfxContext | |
| 13 #include "gfxRect.h" // for gfxRect | |
| 14 #include "gfxPrefs.h" // for gfxPrefs | |
| 15 #include "mozilla/Assertions.h" // for MOZ_ASSERT, etc | |
| 16 #include "mozilla/gfx/2D.h" // for DrawTarget | |
| 17 #include "mozilla/gfx/Matrix.h" // for Matrix | |
| 18 #include "mozilla/gfx/Rect.h" // for Rect, IntRect | |
| 19 #include "mozilla/gfx/Types.h" // for Float, etc | |
| 20 #include "mozilla/layers/LayersTypes.h" | |
| 21 #include "mozilla/Preferences.h" | |
| 22 #include "nsAutoPtr.h" // for nsRefPtr | |
| 23 #include "nsCOMPtr.h" // for already_AddRefed | |
| 24 #include "nsISupportsImpl.h" // for Layer::AddRef, etc | |
| 25 #include "nsRect.h" // for nsIntRect | |
| 26 #include "gfx2DGlue.h" | |
| 27 | |
| 28 using namespace mozilla::gfx; | |
| 29 | |
| 30 namespace mozilla { | |
| 31 namespace layers { | |
| 32 | |
| 33 void | |
| 34 ClientThebesLayer::PaintThebes() | |
| 35 { | |
| 36 PROFILER_LABEL("ClientThebesLayer", "PaintThebes"); | |
| 37 NS_ASSERTION(ClientManager()->InDrawing(), | |
| 38 "Can only draw in drawing phase"); | |
| 39 | |
| 40 uint32_t flags = RotatedContentBuffer::PAINT_CAN_DRAW_ROTATED; | |
| 41 #ifndef MOZ_WIDGET_ANDROID | |
| 42 if (ClientManager()->CompositorMightResample()) { | |
| 43 flags |= RotatedContentBuffer::PAINT_WILL_RESAMPLE; | |
| 44 } | |
| 45 if (!(flags & RotatedContentBuffer::PAINT_WILL_RESAMPLE)) { | |
| 46 if (MayResample()) { | |
| 47 flags |= RotatedContentBuffer::PAINT_WILL_RESAMPLE; | |
| 48 } | |
| 49 } | |
| 50 #endif | |
| 51 PaintState state = | |
| 52 mContentClient->BeginPaintBuffer(this, flags); | |
| 53 mValidRegion.Sub(mValidRegion, state.mRegionToInvalidate); | |
| 54 | |
| 55 if (!state.mRegionToDraw.IsEmpty() && !ClientManager()->GetThebesLayerCallback()) { | |
| 56 ClientManager()->SetTransactionIncomplete(); | |
| 57 return; | |
| 58 } | |
| 59 | |
| 60 // The area that became invalid and is visible needs to be repainted | |
| 61 // (this could be the whole visible area if our buffer switched | |
| 62 // from RGB to RGBA, because we might need to repaint with | |
| 63 // subpixel AA) | |
| 64 state.mRegionToInvalidate.And(state.mRegionToInvalidate, | |
| 65 GetEffectiveVisibleRegion()); | |
| 66 | |
| 67 bool didUpdate = false; | |
| 68 RotatedContentBuffer::DrawIterator iter; | |
| 69 while (DrawTarget* target = mContentClient->BorrowDrawTargetForPainting(state, &iter)) { | |
| 70 SetAntialiasingFlags(this, target); | |
| 71 | |
| 72 nsRefPtr<gfxContext> ctx = gfxContext::ContextForDrawTarget(target); | |
| 73 | |
| 74 ClientManager()->GetThebesLayerCallback()(this, | |
| 75 ctx, | |
| 76 iter.mDrawRegion, | |
| 77 state.mClip, | |
| 78 state.mRegionToInvalidate, | |
| 79 ClientManager()->GetThebesLayerCallbackData()); | |
| 80 | |
| 81 ctx = nullptr; | |
| 82 mContentClient->ReturnDrawTargetToBuffer(target); | |
| 83 didUpdate = true; | |
| 84 } | |
| 85 | |
| 86 if (didUpdate) { | |
| 87 Mutated(); | |
| 88 | |
| 89 mValidRegion.Or(mValidRegion, state.mRegionToDraw); | |
| 90 | |
| 91 ContentClientRemote* contentClientRemote = static_cast<ContentClientRemote*>(mContentClient.get()); | |
| 92 MOZ_ASSERT(contentClientRemote->GetIPDLActor()); | |
| 93 | |
| 94 // Hold(this) ensures this layer is kept alive through the current transaction | |
| 95 // The ContentClient assumes this layer is kept alive (e.g., in CreateBuffer), | |
| 96 // so deleting this Hold for whatever reason will break things. | |
| 97 ClientManager()->Hold(this); | |
| 98 contentClientRemote->Updated(state.mRegionToDraw, | |
| 99 mVisibleRegion, | |
| 100 state.mDidSelfCopy); | |
| 101 } | |
| 102 } | |
| 103 | |
| 104 void | |
| 105 ClientThebesLayer::RenderLayer() | |
| 106 { | |
| 107 if (GetMaskLayer()) { | |
| 108 ToClientLayer(GetMaskLayer())->RenderLayer(); | |
| 109 } | |
| 110 | |
| 111 if (!mContentClient) { | |
| 112 mContentClient = ContentClient::CreateContentClient(ClientManager()->AsShadowForwarder()); | |
| 113 if (!mContentClient) { | |
| 114 return; | |
| 115 } | |
| 116 mContentClient->Connect(); | |
| 117 ClientManager()->AsShadowForwarder()->Attach(mContentClient, this); | |
| 118 MOZ_ASSERT(mContentClient->GetForwarder()); | |
| 119 } | |
| 120 | |
| 121 mContentClient->BeginPaint(); | |
| 122 PaintThebes(); | |
| 123 mContentClient->EndPaint(); | |
| 124 } | |
| 125 | |
| 126 already_AddRefed<ThebesLayer> | |
| 127 ClientLayerManager::CreateThebesLayer() | |
| 128 { | |
| 129 return CreateThebesLayerWithHint(NONE); | |
| 130 } | |
| 131 | |
| 132 already_AddRefed<ThebesLayer> | |
| 133 ClientLayerManager::CreateThebesLayerWithHint(ThebesLayerCreationHint aHint) | |
| 134 { | |
| 135 NS_ASSERTION(InConstruction(), "Only allowed in construction phase"); | |
| 136 if ( | |
| 137 #ifdef MOZ_B2G | |
| 138 aHint == SCROLLABLE && | |
| 139 #endif | |
| 140 gfxPrefs::LayersTilesEnabled() && | |
| 141 (AsShadowForwarder()->GetCompositorBackendType() == LayersBackend::LAYERS_OPENGL || | |
| 142 AsShadowForwarder()->GetCompositorBackendType() == LayersBackend::LAYERS_D3D9 || | |
| 143 AsShadowForwarder()->GetCompositorBackendType() == LayersBackend::LAYERS_D3D11)) { | |
| 144 if (gfxPrefs::LayersUseSimpleTiles()) { | |
| 145 nsRefPtr<SimpleClientTiledThebesLayer> layer = | |
| 146 new SimpleClientTiledThebesLayer(this); | |
| 147 CREATE_SHADOW(Thebes); | |
| 148 return layer.forget(); | |
| 149 } else { | |
| 150 nsRefPtr<ClientTiledThebesLayer> layer = | |
| 151 new ClientTiledThebesLayer(this); | |
| 152 CREATE_SHADOW(Thebes); | |
| 153 return layer.forget(); | |
| 154 } | |
| 155 } else | |
| 156 { | |
| 157 nsRefPtr<ClientThebesLayer> layer = | |
| 158 new ClientThebesLayer(this); | |
| 159 CREATE_SHADOW(Thebes); | |
| 160 return layer.forget(); | |
| 161 } | |
| 162 } | |
| 163 | |
| 164 | |
| 165 } | |
| 166 } |
