gfx/layers/wr/RenderRootTypes.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "RenderRootTypes.h"
   8 #include "mozilla/layers/WebRenderMessageUtils.h"
   9 #include "mozilla/layers/WebRenderBridgeChild.h"
  10
  11 namespace mozilla {
  12 namespace ipc {
  13
  14 void IPDLParamTraits<mozilla::layers::RenderRootDisplayListData>::Write(
  15     IPC::Message* aMsg, IProtocol* aActor, paramType&& aParam) {
  16   WriteIPDLParam(aMsg, aActor, aParam.mRenderRoot);
  17   WriteIPDLParam(aMsg, aActor, aParam.mIdNamespace);
  18   WriteIPDLParam(aMsg, aActor, aParam.mRect);
  19   WriteIPDLParam(aMsg, aActor, aParam.mCommands);
  20   WriteIPDLParam(aMsg, aActor, aParam.mContentSize);
  21   WriteIPDLParam(aMsg, aActor, std::move(aParam.mDL));
  22   WriteIPDLParam(aMsg, aActor, aParam.mDLDesc);
  23   WriteIPDLParam(aMsg, aActor, aParam.mRemotePipelineIds);
  24   WriteIPDLParam(aMsg, aActor, aParam.mResourceUpdates);
  25   WriteIPDLParam(aMsg, aActor, aParam.mSmallShmems);
  26   WriteIPDLParam(aMsg, aActor, std::move(aParam.mLargeShmems));
  27   WriteIPDLParam(aMsg, aActor, aParam.mScrollData);
  28 }
  29
  30 bool IPDLParamTraits<mozilla::layers::RenderRootDisplayListData>::Read(
  31     const IPC::Message* aMsg, PickleIterator* aIter, IProtocol* aActor,
  32     paramType* aResult) {
  33   if (ReadIPDLParam(aMsg, aIter, aActor, &aResult->mRenderRoot) &&
  34       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mIdNamespace) &&
  35       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mRect) &&
  36       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mCommands) &&
  37       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mContentSize) &&
  38       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mDL) &&
  39       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mDLDesc) &&
  40       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mRemotePipelineIds) &&
  41       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mResourceUpdates) &&
  42       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mSmallShmems) &&
  43       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mLargeShmems) &&
  44       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mScrollData)) {
  45     return true;
  46   }
  47   return false;
  48 }
  49
  50 void WriteScrollUpdates(IPC::Message* aMsg, IProtocol* aActor,
  51                         layers::ScrollUpdatesMap& aParam) {
  52   // ICK: we need to manually serialize this map because
  53   // nsDataHashTable doesn't support it (and other maps cause other issues)
  54   WriteIPDLParam(aMsg, aActor, aParam.Count());
  55   for (auto it = aParam.Iter(); !it.Done(); it.Next()) {
  56     WriteIPDLParam(aMsg, aActor, it.Key());
  57     WriteIPDLParam(aMsg, aActor, it.Data());
  58   }
  59 }
  60
  61 bool ReadScrollUpdates(const IPC::Message* aMsg, PickleIterator* aIter,
  62                        IProtocol* aActor, layers::ScrollUpdatesMap* aResult) {
  63   // Manually deserialize mScrollUpdates as a stream of K,V pairs
  64   uint32_t count;
  65   if (!ReadIPDLParam(aMsg, aIter, aActor, &count)) {
  66     return false;
  67   }
  68
  69   layers::ScrollUpdatesMap map(count);
  70   for (size_t i = 0; i < count; ++i) {
  71     layers::ScrollableLayerGuid::ViewID key;
  72     layers::ScrollUpdateInfo data;
  73     if (!ReadIPDLParam(aMsg, aIter, aActor, &key) ||
  74         !ReadIPDLParam(aMsg, aIter, aActor, &data)) {
  75       return false;
  76     }
  77     map.Put(key, data);
  78   }
  79
  80   MOZ_RELEASE_ASSERT(map.Count() == count);
  81   *aResult = std::move(map);
  82   return true;
  83 }
  84
  85 void IPDLParamTraits<mozilla::layers::RenderRootUpdates>::Write(
  86     IPC::Message* aMsg, IProtocol* aActor, paramType&& aParam) {
  87   WriteIPDLParam(aMsg, aActor, aParam.mRenderRoot);
  88   WriteIPDLParam(aMsg, aActor, aParam.mCommands);
  89   WriteIPDLParam(aMsg, aActor, aParam.mResourceUpdates);
  90   WriteIPDLParam(aMsg, aActor, aParam.mSmallShmems);
  91   WriteIPDLParam(aMsg, aActor, std::move(aParam.mLargeShmems));
  92   WriteScrollUpdates(aMsg, aActor, aParam.mScrollUpdates);
  93   WriteIPDLParam(aMsg, aActor, aParam.mPaintSequenceNumber);
  94 }
  95
  96 bool IPDLParamTraits<mozilla::layers::RenderRootUpdates>::Read(
  97     const IPC::Message* aMsg, PickleIterator* aIter, IProtocol* aActor,
  98     paramType* aResult) {
  99   if (ReadIPDLParam(aMsg, aIter, aActor, &aResult->mRenderRoot) &&
 100       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mCommands) &&
 101       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mResourceUpdates) &&
 102       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mSmallShmems) &&
 103       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mLargeShmems) &&
 104       ReadScrollUpdates(aMsg, aIter, aActor, &aResult->mScrollUpdates) &&
 105       ReadIPDLParam(aMsg, aIter, aActor, &aResult->mPaintSequenceNumber)) {
 106     return true;
 107   }
 108   return false;
 109 }
 110
 111 }  // namespace ipc
 112 }  // namespace mozilla