gfx/layers/ipc/FenceUtils.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * vim: sw=2 ts=8 et :
   3  */
   4 /* This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   7
   8 #ifndef IPC_FencerUtils_h
   9 #define IPC_FencerUtils_h
  10
  11 #include "ipc/IPCMessageUtils.h"
  12
  13 /**
  14  * FenceHandle is used for delivering Fence object via ipc.
  15  */
  16 #if MOZ_WIDGET_GONK && ANDROID_VERSION >= 17
  17 # include "mozilla/layers/FenceUtilsGonk.h"
  18 #else
  19 namespace mozilla {
  20 namespace layers {
  21
  22 struct FenceHandleFromChild;
  23
  24 struct FenceHandle {
  25   FenceHandle() {}
  26   explicit FenceHandle(const FenceHandleFromChild& aFenceHandle) {}
  27   bool operator==(const FenceHandle&) const { return false; }
  28   bool IsValid() const { return false; }
  29   void Merge(const FenceHandle& aFenceHandle) {}
  30 };
  31
  32 struct FenceHandleFromChild {
  33   FenceHandleFromChild() {}
  34   explicit FenceHandleFromChild(const FenceHandle& aFence) {}
  35   bool operator==(const FenceHandle&) const { return false; }
  36   bool operator==(const FenceHandleFromChild&) const { return false; }
  37   bool IsValid() const { return false; }
  38 };
  39
  40 } // namespace layers
  41 } // namespace mozilla
  42 #endif // MOZ_WIDGET_GONK && ANDROID_VERSION >= 17
  43
  44 namespace IPC {
  45
  46 #if MOZ_WIDGET_GONK && ANDROID_VERSION >= 17
  47 #else
  48 template <>
  49 struct ParamTraits<mozilla::layers::FenceHandle> {
  50   typedef mozilla::layers::FenceHandle paramType;
  51   static void Write(Message*, const paramType&) {}
  52   static bool Read(const Message*, void**, paramType*) { return false; }
  53 };
  54
  55 template <>
  56 struct ParamTraits<mozilla::layers::FenceHandleFromChild> {
  57   typedef mozilla::layers::FenceHandleFromChild paramType;
  58   static void Write(Message*, const paramType&) {}
  59   static bool Read(const Message*, void**, paramType*) { return false; }
  60 };
  61 #endif // MOZ_WIDGET_GONK && ANDROID_VERSION >= 17
  62
  63 } // namespace IPC
  64
  65 #endif // IPC_FencerUtils_h