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gfx/layers/client/ClientLayerManager.h@129ffea94266 (annotated)

gfx/layers/client/ClientLayerManager.h

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0 2 * This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #ifndef GFX_CLIENTLAYERMANAGER_H
michael@0 7 #define GFX_CLIENTLAYERMANAGER_H
michael@0 8
michael@0 9 #include <stdint.h> // for int32_t
michael@0 10 #include "Layers.h"
michael@0 11 #include "gfxContext.h" // for gfxContext
michael@0 12 #include "mozilla/Attributes.h" // for MOZ_OVERRIDE
michael@0 13 #include "mozilla/LinkedList.h" // For LinkedList
michael@0 14 #include "mozilla/WidgetUtils.h" // for ScreenRotation
michael@0 15 #include "mozilla/gfx/Rect.h" // for Rect
michael@0 16 #include "mozilla/layers/CompositorTypes.h"
michael@0 17 #include "mozilla/layers/LayersTypes.h" // for BufferMode, LayersBackend, etc
michael@0 18 #include "mozilla/layers/ShadowLayers.h" // for ShadowLayerForwarder, etc
michael@0 19 #include "nsAutoPtr.h" // for nsRefPtr
michael@0 20 #include "nsCOMPtr.h" // for already_AddRefed
michael@0 21 #include "nsDebug.h" // for NS_ABORT_IF_FALSE
michael@0 22 #include "nsISupportsImpl.h" // for Layer::Release, etc
michael@0 23 #include "nsRect.h" // for nsIntRect
michael@0 24 #include "nsTArray.h" // for nsTArray
michael@0 25 #include "nscore.h" // for nsAString
michael@0 26
michael@0 27 class nsIWidget;
michael@0 28
michael@0 29 namespace mozilla {
michael@0 30 namespace layers {
michael@0 31
michael@0 32 class ClientThebesLayer;
michael@0 33 class CompositorChild;
michael@0 34 class ImageLayer;
michael@0 35 class PLayerChild;
michael@0 36 class TextureClientPool;
michael@0 37 class SimpleTextureClientPool;
michael@0 38
michael@0 39 class ClientLayerManager : public LayerManager
michael@0 40 {
michael@0 41 typedef nsTArray<nsRefPtr<Layer> > LayerRefArray;
michael@0 42
michael@0 43 public:
michael@0 44 ClientLayerManager(nsIWidget* aWidget);
michael@0 45 virtual ~ClientLayerManager();
michael@0 46
michael@0 47 virtual ShadowLayerForwarder* AsShadowForwarder()
michael@0 48 {
michael@0 49 return mForwarder;
michael@0 50 }
michael@0 51
michael@0 52 virtual int32_t GetMaxTextureSize() const;
michael@0 53
michael@0 54 virtual void SetDefaultTargetConfiguration(BufferMode aDoubleBuffering, ScreenRotation aRotation);
michael@0 55 virtual void BeginTransactionWithTarget(gfxContext* aTarget);
michael@0 56 virtual void BeginTransaction();
michael@0 57 virtual bool EndEmptyTransaction(EndTransactionFlags aFlags = END_DEFAULT);
michael@0 58 virtual void EndTransaction(DrawThebesLayerCallback aCallback,
michael@0 59 void* aCallbackData,
michael@0 60 EndTransactionFlags aFlags = END_DEFAULT);
michael@0 61
michael@0 62 virtual LayersBackend GetBackendType() { return LayersBackend::LAYERS_CLIENT; }
michael@0 63 virtual LayersBackend GetCompositorBackendType() MOZ_OVERRIDE
michael@0 64 {
michael@0 65 return AsShadowForwarder()->GetCompositorBackendType();
michael@0 66 }
michael@0 67 virtual void GetBackendName(nsAString& name);
michael@0 68 virtual const char* Name() const { return "Client"; }
michael@0 69
michael@0 70 virtual void SetRoot(Layer* aLayer);
michael@0 71
michael@0 72 virtual void Mutated(Layer* aLayer);
michael@0 73
michael@0 74 virtual already_AddRefed<ThebesLayer> CreateThebesLayer();
michael@0 75 virtual already_AddRefed<ThebesLayer> CreateThebesLayerWithHint(ThebesLayerCreationHint aHint);
michael@0 76 virtual already_AddRefed<ContainerLayer> CreateContainerLayer();
michael@0 77 virtual already_AddRefed<ImageLayer> CreateImageLayer();
michael@0 78 virtual already_AddRefed<CanvasLayer> CreateCanvasLayer();
michael@0 79 virtual already_AddRefed<ColorLayer> CreateColorLayer();
michael@0 80 virtual already_AddRefed<RefLayer> CreateRefLayer();
michael@0 81
michael@0 82 TextureFactoryIdentifier GetTextureFactoryIdentifier()
michael@0 83 {
michael@0 84 return mForwarder->GetTextureFactoryIdentifier();
michael@0 85 }
michael@0 86
michael@0 87 virtual void FlushRendering() MOZ_OVERRIDE;
michael@0 88 void SendInvalidRegion(const nsIntRegion& aRegion);
michael@0 89
michael@0 90 virtual uint32_t StartFrameTimeRecording(int32_t aBufferSize) MOZ_OVERRIDE;
michael@0 91
michael@0 92 virtual void StopFrameTimeRecording(uint32_t aStartIndex,
michael@0 93 nsTArray<float>& aFrameIntervals) MOZ_OVERRIDE;
michael@0 94
michael@0 95 virtual bool NeedsWidgetInvalidation() MOZ_OVERRIDE { return false; }
michael@0 96
michael@0 97 ShadowableLayer* Hold(Layer* aLayer);
michael@0 98
michael@0 99 bool HasShadowManager() const { return mForwarder->HasShadowManager(); }
michael@0 100
michael@0 101 virtual bool IsCompositingCheap();
michael@0 102 virtual bool HasShadowManagerInternal() const { return HasShadowManager(); }
michael@0 103
michael@0 104 virtual void SetIsFirstPaint() MOZ_OVERRIDE;
michael@0 105
michael@0 106 TextureClientPool *GetTexturePool(gfx::SurfaceFormat aFormat);
michael@0 107 SimpleTextureClientPool *GetSimpleTileTexturePool(gfx::SurfaceFormat aFormat);
michael@0 108
michael@0 109 // Drop cached resources and ask our shadow manager to do the same,
michael@0 110 // if we have one.
michael@0 111 virtual void ClearCachedResources(Layer* aSubtree = nullptr) MOZ_OVERRIDE;
michael@0 112
michael@0 113 void SetRepeatTransaction() { mRepeatTransaction = true; }
michael@0 114 bool GetRepeatTransaction() { return mRepeatTransaction; }
michael@0 115
michael@0 116 bool IsRepeatTransaction() { return mIsRepeatTransaction; }
michael@0 117
michael@0 118 void SetTransactionIncomplete() { mTransactionIncomplete = true; }
michael@0 119
michael@0 120 bool HasShadowTarget() { return !!mShadowTarget; }
michael@0 121
michael@0 122 void SetShadowTarget(gfxContext *aTarget) { mShadowTarget = aTarget; }
michael@0 123
michael@0 124 bool CompositorMightResample() { return mCompositorMightResample; }
michael@0 125
michael@0 126 DrawThebesLayerCallback GetThebesLayerCallback() const
michael@0 127 { return mThebesLayerCallback; }
michael@0 128
michael@0 129 void* GetThebesLayerCallbackData() const
michael@0 130 { return mThebesLayerCallbackData; }
michael@0 131
michael@0 132 CompositorChild *GetRemoteRenderer();
michael@0 133
michael@0 134 /**
michael@0 135 * Called for each iteration of a progressive tile update. Fills
michael@0 136 * aCompositionBounds and aZoom with the current scale and composition bounds
michael@0 137 * being used to composite the layers in this manager, to determine what area
michael@0 138 * intersects with the target composition bounds.
michael@0 139 * aDrawingCritical will be true if the current drawing operation is using
michael@0 140 * the critical displayport.
michael@0 141 * Returns true if the update should continue, or false if it should be
michael@0 142 * cancelled.
michael@0 143 * This is only called if gfxPlatform::UseProgressiveTilePainting() returns
michael@0 144 * true.
michael@0 145 */
michael@0 146 bool ProgressiveUpdateCallback(bool aHasPendingNewThebesContent,
michael@0 147 ParentLayerRect& aCompositionBounds,
michael@0 148 CSSToParentLayerScale& aZoom,
michael@0 149 bool aDrawingCritical);
michael@0 150
michael@0 151 bool InConstruction() { return mPhase == PHASE_CONSTRUCTION; }
michael@0 152 #ifdef DEBUG
michael@0 153 bool InDrawing() { return mPhase == PHASE_DRAWING; }
michael@0 154 bool InForward() { return mPhase == PHASE_FORWARD; }
michael@0 155 #endif
michael@0 156 bool InTransaction() { return mPhase != PHASE_NONE; }
michael@0 157
michael@0 158 void SetNeedsComposite(bool aNeedsComposite)
michael@0 159 {
michael@0 160 mNeedsComposite = aNeedsComposite;
michael@0 161 }
michael@0 162 bool NeedsComposite() const { return mNeedsComposite; }
michael@0 163
michael@0 164 virtual void Composite() MOZ_OVERRIDE;
michael@0 165
michael@0 166 virtual void DidComposite();
michael@0 167
michael@0 168 protected:
michael@0 169 enum TransactionPhase {
michael@0 170 PHASE_NONE, PHASE_CONSTRUCTION, PHASE_DRAWING, PHASE_FORWARD
michael@0 171 };
michael@0 172 TransactionPhase mPhase;
michael@0 173
michael@0 174 private:
michael@0 175 /**
michael@0 176 * Forward transaction results to the parent context.
michael@0 177 */
michael@0 178 void ForwardTransaction(bool aScheduleComposite);
michael@0 179
michael@0 180 /**
michael@0 181 * Take a snapshot of the parent context, and copy
michael@0 182 * it into mShadowTarget.
michael@0 183 */
michael@0 184 void MakeSnapshotIfRequired();
michael@0 185
michael@0 186 void ClearLayer(Layer* aLayer);
michael@0 187
michael@0 188 bool EndTransactionInternal(DrawThebesLayerCallback aCallback,
michael@0 189 void* aCallbackData,
michael@0 190 EndTransactionFlags);
michael@0 191
michael@0 192 // The bounds of |mTarget| in device pixels.
michael@0 193 nsIntRect mTargetBounds;
michael@0 194
michael@0 195 LayerRefArray mKeepAlive;
michael@0 196
michael@0 197 nsIWidget* mWidget;
michael@0 198
michael@0 199 /* Thebes layer callbacks; valid at the end of a transaciton,
michael@0 200 * while rendering */
michael@0 201 DrawThebesLayerCallback mThebesLayerCallback;
michael@0 202 void *mThebesLayerCallbackData;
michael@0 203
michael@0 204 // When we're doing a transaction in order to draw to a non-default
michael@0 205 // target, the layers transaction is only performed in order to send
michael@0 206 // a PLayers:Update. We save the original non-default target to
michael@0 207 // mShadowTarget, and then perform the transaction using
michael@0 208 // mDummyTarget as the render target. After the transaction ends,
michael@0 209 // we send a message to our remote side to capture the actual pixels
michael@0 210 // being drawn to the default target, and then copy those pixels
michael@0 211 // back to mShadowTarget.
michael@0 212 nsRefPtr<gfxContext> mShadowTarget;
michael@0 213
michael@0 214 // Sometimes we draw to targets that don't natively support
michael@0 215 // landscape/portrait orientation. When we need to implement that
michael@0 216 // ourselves, |mTargetRotation| describes the induced transform we
michael@0 217 // need to apply when compositing content to our target.
michael@0 218 ScreenRotation mTargetRotation;
michael@0 219
michael@0 220 // Used to repeat the transaction right away (to avoid rebuilding
michael@0 221 // a display list) to support progressive drawing.
michael@0 222 bool mRepeatTransaction;
michael@0 223 bool mIsRepeatTransaction;
michael@0 224 bool mTransactionIncomplete;
michael@0 225 bool mCompositorMightResample;
michael@0 226 bool mNeedsComposite;
michael@0 227
michael@0 228 RefPtr<ShadowLayerForwarder> mForwarder;
michael@0 229 nsAutoTArray<RefPtr<TextureClientPool>,2> mTexturePools;
michael@0 230
michael@0 231 // indexed by gfx::SurfaceFormat
michael@0 232 nsTArray<RefPtr<SimpleTextureClientPool> > mSimpleTilePools;
michael@0 233 };
michael@0 234
michael@0 235 class ClientLayer : public ShadowableLayer
michael@0 236 {
michael@0 237 public:
michael@0 238 ClientLayer()
michael@0 239 {
michael@0 240 MOZ_COUNT_CTOR(ClientLayer);
michael@0 241 }
michael@0 242
michael@0 243 ~ClientLayer();
michael@0 244
michael@0 245 void SetShadow(PLayerChild* aShadow)
michael@0 246 {
michael@0 247 NS_ABORT_IF_FALSE(!mShadow, "can't have two shadows (yet)");
michael@0 248 mShadow = aShadow;
michael@0 249 }
michael@0 250
michael@0 251 virtual void Disconnect()
michael@0 252 {
michael@0 253 // This is an "emergency Disconnect()", called when the compositing
michael@0 254 // process has died. |mShadow| and our Shmem buffers are
michael@0 255 // automatically managed by IPDL, so we don't need to explicitly
michael@0 256 // free them here (it's hard to get that right on emergency
michael@0 257 // shutdown anyway).
michael@0 258 mShadow = nullptr;
michael@0 259 }
michael@0 260
michael@0 261 virtual void ClearCachedResources() { }
michael@0 262
michael@0 263 virtual void RenderLayer() = 0;
michael@0 264
michael@0 265 virtual ClientThebesLayer* AsThebes() { return nullptr; }
michael@0 266
michael@0 267 static inline ClientLayer *
michael@0 268 ToClientLayer(Layer* aLayer)
michael@0 269 {
michael@0 270 return static_cast<ClientLayer*>(aLayer->ImplData());
michael@0 271 }
michael@0 272 };
michael@0 273
michael@0 274 // Create a shadow layer (PLayerChild) for aLayer, if we're forwarding
michael@0 275 // our layer tree to a parent process. Record the new layer creation
michael@0 276 // in the current open transaction as a side effect.
michael@0 277 template<typename CreatedMethod> void
michael@0 278 CreateShadowFor(ClientLayer* aLayer,
michael@0 279 ClientLayerManager* aMgr,
michael@0 280 CreatedMethod aMethod)
michael@0 281 {
michael@0 282 PLayerChild* shadow = aMgr->AsShadowForwarder()->ConstructShadowFor(aLayer);
michael@0 283 // XXX error handling
michael@0 284 NS_ABORT_IF_FALSE(shadow, "failed to create shadow");
michael@0 285
michael@0 286 aLayer->SetShadow(shadow);
michael@0 287 (aMgr->AsShadowForwarder()->*aMethod)(aLayer);
michael@0 288 aMgr->Hold(aLayer->AsLayer());
michael@0 289 }
michael@0 290
michael@0 291 #define CREATE_SHADOW(_type) \
michael@0 292 CreateShadowFor(layer, this, \
michael@0 293 &ShadowLayerForwarder::Created ## _type ## Layer)
michael@0 294
michael@0 295
michael@0 296 }
michael@0 297 }
michael@0 298
michael@0 299 #endif /* GFX_CLIENTLAYERMANAGER_H */

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