Name Description Size
AnimationHelper.cpp 26463
AnimationHelper.h This transform is calculated from sampleanimation in device pixel and used by compositor. 12356
AnimationInfo.cpp static 8156
AnimationInfo.h 4621
apz 5
AsyncCanvasRenderer.cpp 7906
AsyncCanvasRenderer.h Since HTMLCanvasElement and OffscreenCanvas are not thread-safe, we create AsyncCanvasRenderer which is thread-safe wrapper object for communicating among main, worker and ImageBridgeChild threads. Each HTMLCanvasElement object is responsible for creating AsyncCanvasRenderer object. Once Canvas is transfered to worker, OffscreenCanvas will keep reference pointer of this object. Sometimes main thread needs AsyncCanvasRenderer's result, such as layers fallback to BasicLayerManager or calling toDataURL in Javascript. Simply call GetSurface() in main thread will readback the result to mSurface. If layers backend is LAYERS_CLIENT, this object will pass to ImageBridgeChild for submitting frames to Compositor. 5111
AtomicRefCountedWithFinalize.h Set a callback responsible for recycling this object before it is finalized. 5334
AxisPhysicsModel.cpp The simulation is advanced forward in time with a fixed time step to ensure that it remains deterministic given variable framerates. To determine the position at any variable time, two samples are interpolated. kFixedtimestep is set to 120hz in order to ensure that every frame in a common 60hz refresh rate display will have at least one physics simulation sample. More accuracy can be obtained by reducing kFixedTimestep to smaller intervals, such as 240hz or 1000hz, at the cost of more CPU cycles. If kFixedTimestep is increased to much longer intervals, interpolation will become less effective at reducing temporal jitter and the simulation will lose accuracy. 3628
AxisPhysicsModel.h AxisPhysicsModel encapsulates a generic 1-dimensional physically-based motion model. It performs frame-rate independent interpolation and RK4 integration for smooth animation with stable, deterministic behavior. Implementations are expected to subclass and override the Acceleration() method. 3356
AxisPhysicsMSDModel.cpp Constructs an AxisPhysicsMSDModel with initial values for state. @param aInitialPosition sets the initial position of the simulated spring, in AppUnits. @param aInitialDestination sets the resting position of the simulated spring, in AppUnits. @param aInitialVelocity sets the initial velocity of the simulated spring, in AppUnits / second. Critically-damped and over-damped systems are guaranteed not to overshoot aInitialDestination if this is set to 0; however, it is possible to overshoot and oscillate if not set to 0 or the system is under-damped. @param aSpringConstant sets the strength of the simulated spring. Greater values of mSpringConstant result in a stiffer / stronger spring. @param aDampingRatio controls the amount of dampening force and determines if the system is under-damped, critically-damped, or over-damped. 3677
AxisPhysicsMSDModel.h AxisPhysicsMSDModel encapsulates a 1-dimensional MSD (Mass-Spring-Damper) model. A unit mass is assumed. 2394
basic 27
BSPTree.cpp 3481
BSPTree.h Represents a layer that might have a non-rectangular geometry. 3829
BufferTexture.cpp 18886
BufferTexture.h 3217
CanvasRenderer.cpp 1179
CanvasRenderer.h 5450
client 39
composite 44
CompositionRecorder.cpp 1781
CompositionRecorder.h 1557
Compositor.cpp aZero = 22099
Compositor.h 25335
CompositorTypes.h Flags used by texture clients and texture hosts. These are passed from client side to host side when textures and compositables are created. Usually set by the compositableCient, they may be modified by either the compositable or texture clients. 9796
CopyableCanvasRenderer.cpp 5498
CopyableCanvasRenderer.h A shared CanvasRenderer implementation that supports copying its contents into a gfxASurface using RebackSurface. 2409
d3d11 20
D3D11ShareHandleImage.cpp 9570
D3D11ShareHandleImage.h Used for checking if CompositorDevice/ContentDevice is updated. 2898
D3D11YCbCrImage.cpp 13387
D3D11YCbCrImage.h 2634
D3D9SurfaceImage.cpp 9227
D3D9SurfaceImage.h Wraps a D3D9 texture, shared with the compositor though DXGI. At the moment it is only used with D3D11 compositing, and the corresponding TextureHost is DXGITextureHostD3D11. 3930
DirectedGraph.h Add a new edge to the graph. 2306
DirectionUtils.h GFX_DIRECTIONUTILS_H 1819
Effects.cpp 2388
Effects.h Effects and effect chains are used by the compositor API (see Compositor.h). An effect chain represents a rendering method, for example some shader and the data required for that shader to run. An effect is some component of the chain and its data. An effect chain consists of a primary effect - how the 'texture' memory should be interpreted (RGBA, BGRX, YCBCR, etc.) - and any number of secondary effects - any way in which rendering can be changed, e.g., applying a mask layer. During the rendering process, an effect chain is created by the layer being rendered and the primary effect is added by the compositable host. Secondary effects may be added by the layer or compositable. The effect chain is passed to the compositor by the compositable host as a parameter to DrawQuad. 10665
FrameMetrics.cpp static 6028
FrameMetrics.h Helper struct to hold a couple of fields that can be updated as part of an empty transaction. 42858
GLImages.cpp = true 3065
GLImages.h 2112
GPUVideoImage.h 2624
ImageContainer.cpp 25698
ImageContainer.h We need to be able to hold a reference to a Moz2D SourceSurface from Image subclasses. This is potentially a problem since Images can be addrefed or released off the main thread. We can ensure that we never AddRef a SourceSurface off the main thread, but we might want to Release due to an Image being destroyed off the main thread. We use nsCountedRef<nsMainThreadSourceSurfaceRef> to reference the SourceSurface. When AddRefing, we assert that we're on the main thread. When Releasing, if we're not on the main thread, we post an event to the main thread to do the actual release. 31767
ImageDataSerializer.cpp 9992
ImageDataSerializer.h 3623
ImageLayers.cpp 2370
ImageLayers.h A Layer which renders an Image. 2837
ImageTypes.h The PLANAR_YCBCR format creates a PlanarYCbCrImage. All backends should support this format, because the Ogg video decoder depends on it. The maximum image width and height is 16384. 2827
IMFYCbCrImage.cpp static 4509
IMFYCbCrImage.h 1372
ipc 92
IPDLActor.h 1525
LayerAttributes.h It stores data for scroll thumb layer or container layers. 12136
LayerMetricsWrapper.h 13711
Layers.cpp static 78390
Layers.h 98271
LayerScope.cpp This must occur *after* layers/PLayers.h to avoid typedefs conflicts. 47330
LayerScope.h GFX_LAYERSCOPE_H 1801
LayersHelpers.cpp 2237
LayersHelpers.h 1938
LayersLogging.cpp 16638
LayersLogging.h 10918
LayerSorter.cpp Recover the z component from a 2d transformed point by finding the intersection of a line through the point in the z direction and the transformed plane. We want to solve: point = normal . (p0 - l0) / normal . l 12209
LayerSorter.h GFX_LAYERSORTER_H 591
LayersTypes.cpp 1541
LayersTypes.h 14674
LayerTreeInvalidation.cpp Get accumulated transform of from the context creating layer to the given layer. 28372
LayerTreeInvalidation.h Callback for ContainerLayer invalidations. @param aContainer ContainerLayer being invalidated. @param aRegion Invalidated region in the ContainerLayer's coordinate space. If null, then the entire region must be invalidated. 2591
LayerUserData.h Base class for userdata objects attached to layers and layer managers. We define it here in a separate header so clients only need to include this header for their class definitions, rather than pulling in Layers.h. Everything else in Layers.h should be forward-declarable. 875
layerviewer 6
MacIOSurfaceHelpers.cpp Extract and separate the CbCr planes 6261
MacIOSurfaceHelpers.h 877
MacIOSurfaceImage.cpp 1191
MacIOSurfaceImage.h 1371
MemoryPressureObserver.cpp 2217
MemoryPressureObserver.h 1806
mlgpu 42
moz.build 19244
opengl 23
PaintThread.cpp static 7363
PaintThread.h 3407
PersistentBufferProvider.cpp 13489
PersistentBufferProvider.h A PersistentBufferProvider is for users which require the temporary use of a DrawTarget to draw into. When they're done drawing they return the DrawTarget, when they later need to continue drawing they get a DrawTarget from the provider again, the provider will guarantee the contents of the previously returned DrawTarget is persisted into the one newly returned. 6708
ProfilerScreenshots.cpp static 4893
ProfilerScreenshots.h Can be used to submit screenshots from the compositor to the profiler. Screenshots have a fixed bounding size. The user of this class will usually scale down the window contents first, ideally on the GPU, then read back the small scaled down image into main memory, and then call SubmitScreenshot to pass the data to the profiler. This class encodes each screenshot to a JPEG data URL, on a separate thread. This class manages that thread and recycles memory buffers. 4072
protobuf 3
ReadbackLayer.h A ReadbackSink receives a stream of updates to a rectangle of pixels. These update callbacks are always called on the main thread, either during EndTransaction or from the event loop. 7462
ReadbackProcessor.cpp 6676
ReadbackProcessor.h Called by the container before processing any child layers. Call this if any child layer might have changed in any way (other than content-only changes to layers other than ColorLayers and PaintedLayers). This method recomputes the relationship between ReadbackLayers and sibling layers, and dispatches changes to ReadbackLayers. Except that if a PaintedLayer needs its contents sent to some ReadbackLayer, we'll just record that internally and later the PaintedLayer should call GetPaintedLayerUpdates when it paints, to find out which rectangle needs to be sent, and the ReadbackLayer it needs to be sent to. 2929
RenderTrace.cpp 2846
RenderTrace.h 2442
RepaintRequest.h 11634
RotatedBuffer.cpp @param aXSide LEFT means we draw from the left side of the buffer (which is drawn on the right side of mBufferRect). RIGHT means we draw from the right side of the buffer (which is drawn on the left side of mBufferRect). @param aYSide TOP means we draw from the top side of the buffer (which is drawn on the bottom side of mBufferRect). BOTTOM means we draw from the bottom side of the buffer (which is drawn on the top side of mBufferRect). 17018
RotatedBuffer.h This is a cairo/Thebes surface, but with a literal twist. Scrolling causes the layer's visible region to move. We want to keep reusing the same surface if the region size hasn't changed, but we don't want to keep moving the contents of the surface around in memory. So we use a trick. Consider just the vertical case, and suppose the buffer is H pixels high and we're scrolling down by N pixels. Instead of copying the buffer contents up by N pixels, we leave the buffer contents in place, and paint content rows H to H+N-1 into rows 0 to N-1 of the buffer. Then we can refresh the screen by painting rows N to H-1 of the buffer at row 0 on the screen, and then painting rows 0 to N-1 of the buffer at row H-N on the screen. mBufferRotation.y would be N in this example. 14899
ScrollableLayerGuid.h This class allows us to uniquely identify a scrollable layer. The mLayersId identifies the layer tree (corresponding to a child process and/or tab) that the scrollable layer belongs to. The mPresShellId is a temporal identifier (corresponding to the document loaded that contains the scrollable layer, which may change over time). The mScrollId corresponds to the actual frame that is scrollable. 4260
ShareableCanvasRenderer.cpp 5831
ShareableCanvasRenderer.h 1658
SourceSurfaceSharedData.cpp If defined, this makes SourceSurfaceSharedData::Finalize memory protect the underlying shared buffer in the producing process (the content or UI process). Given flushing the page table is expensive, and its utility is predominantly diagnostic (in case of overrun), turn it off by default. 5403
SourceSurfaceSharedData.h This class is used to wrap shared (as in process) data buffers allocated by a SourceSurfaceSharedData object. It may live in the same process or a different process from the actual SourceSurfaceSharedData object. If it is in the same process, mBuf is the same object as that in the surface. It is a useful abstraction over just using the surface directly, because it can have a different lifetime from the surface; if the surface gets freed, consumers may continue accessing the data in the buffer. Releasing the original surface is a signal which feeds into SharedSurfacesParent to decide to release the SourceSurfaceSharedDataWrapper. If it is in a different process, mBuf is a new SharedMemoryBasic object which mapped in the given shared memory handle as read only memory. 9884
SourceSurfaceVolatileData.cpp 1600
SourceSurfaceVolatileData.h This class is used to wrap volatile data buffers used for source surfaces. The Map and Unmap semantics are used to guarantee that the volatile data buffer is not freed by the operating system while the surface is in active use. If GetData is expected to return a non-null value without a corresponding Map call (and verification of the result), the surface data should be wrapped in a temporary SourceSurfaceRawData with a ScopedMap closure. 3277
SyncObject.cpp 1115
SyncObject.h 1816
TextureDIB.cpp Can only be drawn into through Cairo. The coresponding TextureHost depends on the compositor 14278
TextureDIB.h This is meant for a texture host which does a direct upload from Updated to a Compositor specific DataTextureSource and therefor doesn't need any specific Lock/Unlock magic. 3629
TextureSourceProvider.cpp 2902
TextureSourceProvider.h 4706
TextureSync.cpp nothing 8774
TextureSync.h 1683
TextureWrapperImage.cpp 1410
TextureWrapperImage.h 1284
TiledLayerBuffer.h Stores the origin and size of a tile buffer and handles switching between tile indices and tile coordinates. Tile coordinates in TileCoordIntPoint take the first tile offset into account which means that two TilesPlacement of the same layer and resolution give tile coordinates in the same coordinate space (useful when changing the offset and/or size of a tile buffer). 7928
TransactionIdAllocator.h Allocate a unique id number for the current refresh tick, can only be called while IsInRefresh(). If too many id's are allocated without being returned then the refresh driver will suspend until they catch up. This "throttling" behaviour can be skipped by passing aThrottle=false. Otherwise call sites should generally be passing aThrottle=true. 3230
TreeTraversal.h Returned by |aPostAction| and |aPreAction| in ForEachNode, indicates the behavior to follow either action: TraversalFlag::Skip - the node's children are not traversed. If this flag is returned by |aPreAction|, |aPostAction| is skipped for the current node, as well. TraversalFlag::Continue - traversal continues normally. TraversalFlag::Abort - traversal stops immediately. 8362
UpdateImageHelper.h unused 2351
wr 39
ZoomConstraints.h GFX_ZOOMCONSTRAINTS_H 1970