gfx/layers/ipc/PCompositor.ipdl@97036ab72558 (annotated)
gfx/layers/ipc/PCompositor.ipdl
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- |
| michael@0 | 2 | * vim: sw=2 ts=8 et : |
| michael@0 | 3 | */ |
| michael@0 | 4 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 5 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 6 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 7 | |
| michael@0 | 8 | include LayersSurfaces; |
| michael@0 | 9 | include protocol PGrallocBuffer; |
| michael@0 | 10 | include protocol PLayerTransaction; |
| michael@0 | 11 | include "mozilla/GfxMessageUtils.h"; |
| michael@0 | 12 | include "nsRegion.h"; |
| michael@0 | 13 | |
| michael@0 | 14 | using struct mozilla::null_t from "ipc/IPCMessageUtils.h"; |
| michael@0 | 15 | using struct mozilla::layers::TextureFactoryIdentifier from "mozilla/layers/CompositorTypes.h"; |
| michael@0 | 16 | using struct mozilla::layers::FrameMetrics from "FrameMetrics.h"; |
| michael@0 | 17 | using mozilla::layers::FrameMetrics::ViewID from "FrameMetrics.h"; |
| michael@0 | 18 | using mozilla::layers::LayersBackend from "mozilla/layers/LayersTypes.h"; |
| michael@0 | 19 | using mozilla::CrossProcessMutexHandle from "mozilla/ipc/CrossProcessMutex.h"; |
| michael@0 | 20 | using mozilla::ipc::SharedMemoryBasic::Handle from "mozilla/ipc/SharedMemoryBasic.h"; |
| michael@0 | 21 | using class mozilla::TimeStamp from "mozilla/TimeStamp.h"; |
| michael@0 | 22 | |
| michael@0 | 23 | namespace mozilla { |
| michael@0 | 24 | namespace layers { |
| michael@0 | 25 | |
| michael@0 | 26 | |
| michael@0 | 27 | /** |
| michael@0 | 28 | * The PCompositor protocol is used to manage communication between |
| michael@0 | 29 | * the main thread and the compositor thread context. It's primary |
| michael@0 | 30 | * purpose is to manage the PLayerTransaction sub protocol. |
| michael@0 | 31 | */ |
| michael@0 | 32 | // This should really be 'sync', but we're using 'rpc' as a workaround |
| michael@0 | 33 | // for Bug 716631. |
| michael@0 | 34 | intr protocol PCompositor |
| michael@0 | 35 | { |
| michael@0 | 36 | // A Compositor manages a single Layer Manager (PLayerTransaction) |
| michael@0 | 37 | manages PLayerTransaction; |
| michael@0 | 38 | |
| michael@0 | 39 | child: |
| michael@0 | 40 | // The child should invalidate everything so that the whole window is redrawn. |
| michael@0 | 41 | async InvalidateAll(); |
| michael@0 | 42 | |
| michael@0 | 43 | // The compositor completed a layers transaction. id is the layers id |
| michael@0 | 44 | // of the child layer tree that was composited (or 0 when notifying |
| michael@0 | 45 | // the root layer tree). |
| michael@0 | 46 | async DidComposite(uint64_t id); |
| michael@0 | 47 | |
| michael@0 | 48 | parent: |
| michael@0 | 49 | |
| michael@0 | 50 | // The child is about to be destroyed, so perform any necessary cleanup. |
| michael@0 | 51 | sync WillStop(); |
| michael@0 | 52 | |
| michael@0 | 53 | // Clean up in preparation for own destruction. |
| michael@0 | 54 | sync Stop(); |
| michael@0 | 55 | |
| michael@0 | 56 | // Pause/resume the compositor. These are intended to be used on mobile, when |
| michael@0 | 57 | // the compositor needs to pause/resume in lockstep with the application. |
| michael@0 | 58 | sync Pause(); |
| michael@0 | 59 | sync Resume(); |
| michael@0 | 60 | |
| michael@0 | 61 | async NotifyChildCreated(uint64_t id); |
| michael@0 | 62 | |
| michael@0 | 63 | // Make a snapshot of the content that would have been drawn to our |
| michael@0 | 64 | // render target at the time this message is received. If the size |
| michael@0 | 65 | // or format of |inSnapshot| doesn't match our render target, |
| michael@0 | 66 | // results are undefined. |
| michael@0 | 67 | // |
| michael@0 | 68 | // NB: this message will result in animations, transforms, effects, |
| michael@0 | 69 | // and so forth being interpolated. That's what we want to happen. |
| michael@0 | 70 | sync MakeSnapshot(SurfaceDescriptor inSnapshot) |
| michael@0 | 71 | returns (SurfaceDescriptor outSnapshot); |
| michael@0 | 72 | |
| michael@0 | 73 | // Make sure any pending composites are started immediately and |
| michael@0 | 74 | // block until they are completed. |
| michael@0 | 75 | sync FlushRendering(); |
| michael@0 | 76 | |
| michael@0 | 77 | sync StartFrameTimeRecording(int32_t bufferSize) |
| michael@0 | 78 | returns (uint32_t startIndex); |
| michael@0 | 79 | |
| michael@0 | 80 | sync StopFrameTimeRecording(uint32_t startIndex) |
| michael@0 | 81 | returns (float[] intervals); |
| michael@0 | 82 | |
| michael@0 | 83 | // layersBackendHints is an ordered list of preffered backends where |
| michael@0 | 84 | // layersBackendHints[0] is the best backend. If any hints are LayersBackend::LAYERS_NONE |
| michael@0 | 85 | // that hint is ignored. |
| michael@0 | 86 | sync PLayerTransaction(LayersBackend[] layersBackendHints, uint64_t id) |
| michael@0 | 87 | returns (TextureFactoryIdentifier textureFactoryIdentifier, bool success); |
| michael@0 | 88 | |
| michael@0 | 89 | // Notify the compositor that a region of the screen has been invalidated. |
| michael@0 | 90 | async NotifyRegionInvalidated(nsIntRegion region); |
| michael@0 | 91 | |
| michael@0 | 92 | child: |
| michael@0 | 93 | // Send back Compositor Frame Metrics from APZCs so tiled layers can |
| michael@0 | 94 | // update progressively. |
| michael@0 | 95 | async SharedCompositorFrameMetrics(Handle metrics, CrossProcessMutexHandle mutex, uint32_t aAPZCId); |
| michael@0 | 96 | async ReleaseSharedCompositorFrameMetrics(ViewID aId, uint32_t aAPZCId); |
| michael@0 | 97 | }; |
| michael@0 | 98 | |
| michael@0 | 99 | } // layers |
| michael@0 | 100 | } // mozilla |
