tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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PNativeLayerRemote.ipdl (2405B)

      1 /* -*- Mode: C++; tab-width: 8; 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 "mozilla/GfxMessageUtils.h";
      7 
      8 using struct mozilla::gfx::DeviceColor from "mozilla/gfx/2D.h";
      9 using mozilla::gfx::IntPoint from "mozilla/gfx/Point.h";
     10 using mozilla::gfx::IntRect from "mozilla/gfx/Point.h";
     11 using mozilla::gfx::RoundedRect from "mozilla/gfx/Point.h";
     12 using mozilla::gfx::IntSize from "mozilla/gfx/Point.h";
     13 using mozilla::gfx::Matrix4x4 from "mozilla/gfx/Matrix.h";
     14 [MoveOnly] using mozilla::layers::IOSurfacePort from "mozilla/layers/IOSurfacePort.h";
     15 
     16 namespace mozilla {
     17 namespace layers {
     18 
     19 union NativeLayerCommand {
     20   CommandCreateLayer;
     21   CommandCreateLayerForExternalTexture;
     22   CommandCreateLayerForColor;
     23   CommandLayerDestroyed;
     24   CommandSetLayers;
     25   CommandLayerInfo;
     26   CommandChangedSurface;
     27 };
     28 
     29 struct CommandCreateLayer {
     30   uint64_t ID;
     31   IntSize Size;
     32   bool Opaque;
     33 };
     34 
     35 struct CommandCreateLayerForExternalTexture {
     36   uint64_t ID;
     37   bool Opaque;
     38 };
     39 
     40 struct CommandCreateLayerForColor {
     41   uint64_t ID;
     42   DeviceColor Color;
     43 };
     44 
     45 struct CommandLayerDestroyed {
     46   uint64_t ID;
     47 };
     48 
     49 struct CommandSetLayers {
     50   uint64_t[] IDs;
     51 };
     52 
     53 struct CommandLayerInfo {
     54   uint64_t ID;
     55   IntPoint Position;
     56   IntRect DisplayRect;
     57   IntRect? ClipRect;
     58   RoundedRect? RoundedClipRect;
     59   Matrix4x4 Transform;
     60   int8_t SamplingFilter;
     61   bool SurfaceIsFlipped;
     62 };
     63 
     64 struct CommandChangedSurface {
     65   uint64_t ID;
     66   IOSurfacePort Surface;
     67   bool IsDRM;
     68   bool IsHDR;
     69   IntSize Size;
     70 };
     71 
     72 // This protocol allows a NativeLayerRoot implementation on the GPU
     73 // to send layer commands to the parent process. It also allows the
     74 // GPU to request readback, which the parent will send as a Shmem.
     75 [NeedsOtherPid, ParentProc=Parent, ChildProc=GPU]
     76 sync protocol PNativeLayerRemote
     77 {
     78 parent:
     79   async CommitNativeLayerCommands(NativeLayerCommand[] commands);
     80   sync RequestReadback(IntSize size) returns (Shmem pixels);
     81 
     82   // A synchronous no-op message, to make sure that any preceding
     83   // CommitNativeLayerCommands messages have been processed.
     84   // Used for synchronous widget-initiated paints, most importantly
     85   // during window resize or when a new window is opened.
     86   sync Flush();
     87 };
     88 
     89 } // layers
     90 } // mozilla