The Tor Browser: gfx/ipc/GfxMessageUtils.h@925c144e1f1f (annotated)

gfx/ipc/GfxMessageUtils.h@925c144e1f1f (annotated)

gfx/ipc/GfxMessageUtils.h

Fri, 16 Jan 2015 18:13:44 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Fri, 16 Jan 2015 18:13:44 +0100
branch: TOR_BUG_9701
changeset 14: 925c144e1f1f
permissions: -rw-r--r--

Integrate suggestion from review to improve consistency with existing code.

 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set sw=2 ts=8 et tw=80 : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #ifndef __GFXMESSAGEUTILS_H__
 #define __GFXMESSAGEUTILS_H__
 #include "base/process_util.h"
 #include "chrome/common/ipc_message_utils.h"
 #include "ipc/IPCMessageUtils.h"
 #include <stdint.h>
 #include "gfx3DMatrix.h"
 #include "gfxColor.h"
 #include "mozilla/gfx/Matrix.h"
 #include "GraphicsFilter.h"
 #include "gfxPoint.h"
 #include "gfxRect.h"
 #include "nsRect.h"
 #include "nsRegion.h"
 #include "gfxTypes.h"
 #include "mozilla/layers/LayersTypes.h"
 #include "mozilla/layers/CompositorTypes.h"
 #include "FrameMetrics.h"
 #include "FilterSupport.h"
 #include "mozilla/layers/GeckoContentController.h"
 #ifdef _MSC_VER
 #pragma warning( disable : 4800 )
 #endif
 namespace mozilla {
 typedef gfxImageFormat PixelFormat;
 #if defined(MOZ_HAVE_CXX11_STRONG_ENUMS)
 typedef ::GraphicsFilter GraphicsFilterType;
 #else
 // If we don't have support for enum classes, then we need to use the actual
 // enum type here instead of the simulated enum class.
 typedef GraphicsFilter::Enum GraphicsFilterType;
 #endif
 } // namespace mozilla
 namespace IPC {
 template<>
 struct ParamTraits<mozilla::gfx::Matrix>
 {
   typedef mozilla::gfx::Matrix paramType;
   static void Write(Message* aMsg, const paramType& aParam)
   {
     WriteParam(aMsg, aParam._11);
     WriteParam(aMsg, aParam._12);
     WriteParam(aMsg, aParam._21);
     WriteParam(aMsg, aParam._22);
     WriteParam(aMsg, aParam._31);
     WriteParam(aMsg, aParam._32);
   }
   static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
   {
     if (ReadParam(aMsg, aIter, &aResult->_11) &&
         ReadParam(aMsg, aIter, &aResult->_12) &&
         ReadParam(aMsg, aIter, &aResult->_21) &&
         ReadParam(aMsg, aIter, &aResult->_22) &&
         ReadParam(aMsg, aIter, &aResult->_31) &&
         ReadParam(aMsg, aIter, &aResult->_32))
       return true;
     return false;
   }
   static void Log(const paramType& aParam, std::wstring* aLog)
   {
     aLog->append(StringPrintf(L"[[%g %g] [%g %g] [%g %g]]", aParam._11, aParam._12, aParam._21, aParam._22,
                                                             aParam._31, aParam._32));
   }
 };
 template<>
 struct ParamTraits<mozilla::gfx::Matrix4x4>
 {
   typedef mozilla::gfx::Matrix4x4 paramType;
   static void Write(Message* msg, const paramType& param)
   {
 #define Wr(_f)  WriteParam(msg, param. _f)
     Wr(_11); Wr(_12); Wr(_13); Wr(_14);
     Wr(_21); Wr(_22); Wr(_23); Wr(_24);
     Wr(_31); Wr(_32); Wr(_33); Wr(_34);
     Wr(_41); Wr(_42); Wr(_43); Wr(_44);
 #undef Wr
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
 #define Rd(_f)  ReadParam(msg, iter, &result-> _f)
     return (Rd(_11) && Rd(_12) && Rd(_13) && Rd(_14) &&
             Rd(_21) && Rd(_22) && Rd(_23) && Rd(_24) &&
             Rd(_31) && Rd(_32) && Rd(_33) && Rd(_34) &&
             Rd(_41) && Rd(_42) && Rd(_43) && Rd(_44));
 #undef Rd
   }
 };
 template<>
 struct ParamTraits<mozilla::gfx::Matrix5x4>
 {
   typedef mozilla::gfx::Matrix5x4 paramType;
   static void Write(Message* msg, const paramType& param)
   {
 #define Wr(_f)  WriteParam(msg, param. _f)
     Wr(_11); Wr(_12); Wr(_13); Wr(_14);
     Wr(_21); Wr(_22); Wr(_23); Wr(_24);
     Wr(_31); Wr(_32); Wr(_33); Wr(_34);
     Wr(_41); Wr(_42); Wr(_43); Wr(_44);
     Wr(_51); Wr(_52); Wr(_53); Wr(_54);
 #undef Wr
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
 #define Rd(_f)  ReadParam(msg, iter, &result-> _f)
     return (Rd(_11) && Rd(_12) && Rd(_13) && Rd(_14) &&
             Rd(_21) && Rd(_22) && Rd(_23) && Rd(_24) &&
             Rd(_31) && Rd(_32) && Rd(_33) && Rd(_34) &&
             Rd(_41) && Rd(_42) && Rd(_43) && Rd(_44) &&
             Rd(_51) && Rd(_52) && Rd(_53) && Rd(_54));
 #undef Rd
   }
 };
 template<>
 struct ParamTraits<gfxPoint>
 {
   typedef gfxPoint paramType;
   static void Write(Message* aMsg, const paramType& aParam)
   {
     WriteParam(aMsg, aParam.x);
     WriteParam(aMsg, aParam.y);
   }
   static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
   {
     return (ReadParam(aMsg, aIter, &aResult->x) &&
             ReadParam(aMsg, aIter, &aResult->y));
  }
 };
 template<>
 struct ParamTraits<gfxPoint3D>
 {
   typedef gfxPoint3D paramType;
   static void Write(Message* aMsg, const paramType& aParam)
   {
     WriteParam(aMsg, aParam.x);
     WriteParam(aMsg, aParam.y);
     WriteParam(aMsg, aParam.z);
   }
   static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
   {
     return (ReadParam(aMsg, aIter, &aResult->x) &&
             ReadParam(aMsg, aIter, &aResult->y) &&
             ReadParam(aMsg, aIter, &aResult->z));
   }
 };
 template<>
 struct ParamTraits<gfxSize>
 {
   typedef gfxSize paramType;
   static void Write(Message* aMsg, const paramType& aParam)
   {
     WriteParam(aMsg, aParam.width);
     WriteParam(aMsg, aParam.height);
   }
   static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
   {
     if (ReadParam(aMsg, aIter, &aResult->width) &&
         ReadParam(aMsg, aIter, &aResult->height))
       return true;
     return false;
   }
 };
 template<>
 struct ParamTraits<gfxRect>
 {
   typedef gfxRect paramType;
   static void Write(Message* aMsg, const paramType& aParam)
   {
     WriteParam(aMsg, aParam.x);
     WriteParam(aMsg, aParam.y);
     WriteParam(aMsg, aParam.width);
     WriteParam(aMsg, aParam.height);
   }
   static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
   {
     return ReadParam(aMsg, aIter, &aResult->x) &&
            ReadParam(aMsg, aIter, &aResult->y) &&
            ReadParam(aMsg, aIter, &aResult->width) &&
            ReadParam(aMsg, aIter, &aResult->height);
   }
 };
 template<>
 struct ParamTraits<gfx3DMatrix>
 {
   typedef gfx3DMatrix paramType;
   static void Write(Message* msg, const paramType& param)
   {
 #define Wr(_f)  WriteParam(msg, param. _f)
     Wr(_11); Wr(_12); Wr(_13); Wr(_14);
     Wr(_21); Wr(_22); Wr(_23); Wr(_24);
     Wr(_31); Wr(_32); Wr(_33); Wr(_34);
     Wr(_41); Wr(_42); Wr(_43); Wr(_44);
 #undef Wr
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
 #define Rd(_f)  ReadParam(msg, iter, &result-> _f)
     return (Rd(_11) && Rd(_12) && Rd(_13) && Rd(_14) &&
             Rd(_21) && Rd(_22) && Rd(_23) && Rd(_24) &&
             Rd(_31) && Rd(_32) && Rd(_33) && Rd(_34) &&
             Rd(_41) && Rd(_42) && Rd(_43) && Rd(_44));
 #undef Rd
   }
 };
 template <>
 struct ParamTraits<gfxContentType>
   : public ContiguousTypedEnumSerializer<
              gfxContentType,
              gfxContentType::COLOR,
              gfxContentType::SENTINEL>
 {};
 template <>
 struct ParamTraits<gfxSurfaceType>
   : public ContiguousTypedEnumSerializer<
              gfxSurfaceType,
              gfxSurfaceType::Image,
              gfxSurfaceType::Max>
 {};
 template <>
 struct ParamTraits<mozilla::GraphicsFilterType>
   : public ContiguousEnumSerializer<
              mozilla::GraphicsFilterType,
              GraphicsFilter::FILTER_FAST,
              GraphicsFilter::FILTER_SENTINEL>
 {};
 template <>
 struct ParamTraits<mozilla::layers::LayersBackend>
   : public ContiguousTypedEnumSerializer<
              mozilla::layers::LayersBackend,
              mozilla::layers::LayersBackend::LAYERS_NONE,
              mozilla::layers::LayersBackend::LAYERS_LAST>
 {};
 template <>
 struct ParamTraits<mozilla::layers::ScaleMode>
   : public ContiguousTypedEnumSerializer<
              mozilla::layers::ScaleMode,
              mozilla::layers::ScaleMode::SCALE_NONE,
              mozilla::layers::ScaleMode::SENTINEL>
 {};
 template <>
 struct ParamTraits<gfxImageFormat>
   : public ContiguousTypedEnumSerializer<
              gfxImageFormat,
              gfxImageFormat::ARGB32,
              gfxImageFormat::Unknown>
 {};
 template <>
 struct ParamTraits<mozilla::gfx::AttributeName>
   : public ContiguousEnumSerializer<
              mozilla::gfx::AttributeName,
              mozilla::gfx::eBlendBlendmode,
              mozilla::gfx::eLastAttributeName>
 {};
 template <>
 struct ParamTraits<mozilla::gfx::AttributeType>
   : public ContiguousTypedEnumSerializer<
              mozilla::gfx::AttributeType,
              mozilla::gfx::AttributeType::eBool,
              mozilla::gfx::AttributeType::Max>
 {};
 template <>
 struct ParamTraits<mozilla::gfx::PrimitiveType>
   : public ContiguousTypedEnumSerializer<
              mozilla::gfx::PrimitiveType,
              mozilla::gfx::PrimitiveType::Empty,
              mozilla::gfx::PrimitiveType::Max>
 {};
 template <>
 struct ParamTraits<mozilla::gfx::ColorSpace>
   : public ContiguousTypedEnumSerializer<
              mozilla::gfx::ColorSpace,
              mozilla::gfx::ColorSpace::SRGB,
              mozilla::gfx::ColorSpace::Max>
 {};
 /*
 template <>
 struct ParamTraits<mozilla::PixelFormat>
   : public EnumSerializer<mozilla::PixelFormat,
                           gfxImageFormat::ARGB32,
                           gfxImageFormat::Unknown>
 {};
 */
 template<>
 struct ParamTraits<gfxRGBA>
 {
   typedef gfxRGBA paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.r);
     WriteParam(msg, param.g);
     WriteParam(msg, param.b);
     WriteParam(msg, param.a);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->r) &&
             ReadParam(msg, iter, &result->g) &&
             ReadParam(msg, iter, &result->b) &&
             ReadParam(msg, iter, &result->a));
   }
 };
 template<>
 struct ParamTraits<mozilla::gfx::Color>
 {
   typedef mozilla::gfx::Color paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.r);
     WriteParam(msg, param.g);
     WriteParam(msg, param.b);
     WriteParam(msg, param.a);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->r) &&
             ReadParam(msg, iter, &result->g) &&
             ReadParam(msg, iter, &result->b) &&
             ReadParam(msg, iter, &result->a));
   }
 };
 template<>
 struct ParamTraits<nsPoint>
 {
   typedef nsPoint paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.x);
     WriteParam(msg, param.y);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->x) &&
             ReadParam(msg, iter, &result->y));
   }
 };
 template<>
 struct ParamTraits<nsIntPoint>
 {
   typedef nsIntPoint paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.x);
     WriteParam(msg, param.y);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->x) &&
             ReadParam(msg, iter, &result->y));
   }
 };
 template<>
 struct ParamTraits<mozilla::gfx::IntSize>
 {
   typedef mozilla::gfx::IntSize paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.width);
     WriteParam(msg, param.height);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->width) &&
             ReadParam(msg, iter, &result->height));
   }
 };
 template<>
 struct ParamTraits<nsIntRect>
 {
   typedef nsIntRect paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.x);
     WriteParam(msg, param.y);
     WriteParam(msg, param.width);
     WriteParam(msg, param.height);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->x) &&
             ReadParam(msg, iter, &result->y) &&
             ReadParam(msg, iter, &result->width) &&
             ReadParam(msg, iter, &result->height));
   }
 };
 template<typename Region, typename Rect, typename Iter>
 struct RegionParamTraits
 {
   typedef Region paramType;
   static void Write(Message* msg, const paramType& param)
   {
     Iter it(param);
     while (const Rect* r = it.Next())
       WriteParam(msg, *r);
     // empty rects are sentinel values because nsRegions will never
     // contain them
     WriteParam(msg, Rect());
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     Rect rect;
     while (ReadParam(msg, iter, &rect)) {
       if (rect.IsEmpty())
         return true;
       result->Or(*result, rect);
     }
     return false;
   }
 };
 template<>
 struct ParamTraits<nsIntRegion>
   : RegionParamTraits<nsIntRegion, nsIntRect, nsIntRegionRectIterator>
 {};
 template<>
 struct ParamTraits<nsIntSize>
 {
   typedef nsIntSize paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.width);
     WriteParam(msg, param.height);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->width) &&
             ReadParam(msg, iter, &result->height));
   }
 };
 template<class T, class U>
 struct ParamTraits< mozilla::gfx::ScaleFactor<T, U> >
 {
   typedef mozilla::gfx::ScaleFactor<T, U> paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.scale);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->scale));
   }
 };
 template<class T>
 struct ParamTraits< mozilla::gfx::PointTyped<T> >
 {
   typedef mozilla::gfx::PointTyped<T> paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.x);
     WriteParam(msg, param.y);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->x) &&
             ReadParam(msg, iter, &result->y));
   }
 };
 template<class T>
 struct ParamTraits< mozilla::gfx::Point3DTyped<T> >
 {
   typedef mozilla::gfx::Point3DTyped<T> paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.x);
     WriteParam(msg, param.y);
     WriteParam(msg, param.z);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->x) &&
             ReadParam(msg, iter, &result->y) &&
             ReadParam(msg, iter, &result->z));
   }
 };
 template<class T>
 struct ParamTraits< mozilla::gfx::IntPointTyped<T> >
 {
   typedef mozilla::gfx::IntPointTyped<T> paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.x);
     WriteParam(msg, param.y);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->x) &&
             ReadParam(msg, iter, &result->y));
   }
 };
 template<class T>
 struct ParamTraits< mozilla::gfx::SizeTyped<T> >
 {
   typedef mozilla::gfx::SizeTyped<T> paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.width);
     WriteParam(msg, param.height);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->width) &&
             ReadParam(msg, iter, &result->height));
   }
 };
 template<class T>
 struct ParamTraits< mozilla::gfx::RectTyped<T> >
 {
   typedef mozilla::gfx::RectTyped<T> paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.x);
     WriteParam(msg, param.y);
     WriteParam(msg, param.width);
     WriteParam(msg, param.height);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->x) &&
             ReadParam(msg, iter, &result->y) &&
             ReadParam(msg, iter, &result->width) &&
             ReadParam(msg, iter, &result->height));
   }
 };
 template<class T>
 struct ParamTraits< mozilla::gfx::IntRectTyped<T> >
 {
   typedef mozilla::gfx::IntRectTyped<T> paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.x);
     WriteParam(msg, param.y);
     WriteParam(msg, param.width);
     WriteParam(msg, param.height);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->x) &&
             ReadParam(msg, iter, &result->y) &&
             ReadParam(msg, iter, &result->width) &&
             ReadParam(msg, iter, &result->height));
   }
 };
 template<>
 struct ParamTraits<mozilla::gfx::Margin>
 {
   typedef mozilla::gfx::Margin paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.top);
     WriteParam(msg, param.right);
     WriteParam(msg, param.bottom);
     WriteParam(msg, param.left);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->top) &&
             ReadParam(msg, iter, &result->right) &&
             ReadParam(msg, iter, &result->bottom) &&
             ReadParam(msg, iter, &result->left));
   }
 };
 template<class T>
 struct ParamTraits< mozilla::gfx::MarginTyped<T> >
 {
   typedef mozilla::gfx::MarginTyped<T> paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.top);
     WriteParam(msg, param.right);
     WriteParam(msg, param.bottom);
     WriteParam(msg, param.left);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->top) &&
             ReadParam(msg, iter, &result->right) &&
             ReadParam(msg, iter, &result->bottom) &&
             ReadParam(msg, iter, &result->left));
   }
 };
 template<>
 struct ParamTraits<nsRect>
 {
   typedef nsRect paramType;
   static void Write(Message* msg, const paramType& param)
   {
     WriteParam(msg, param.x);
     WriteParam(msg, param.y);
     WriteParam(msg, param.width);
     WriteParam(msg, param.height);
   }
   static bool Read(const Message* msg, void** iter, paramType* result)
   {
     return (ReadParam(msg, iter, &result->x) &&
             ReadParam(msg, iter, &result->y) &&
             ReadParam(msg, iter, &result->width) &&
             ReadParam(msg, iter, &result->height));
   }
 };
 template<>
 struct ParamTraits<nsRegion>
   : RegionParamTraits<nsRegion, nsRect, nsRegionRectIterator>
 {};
 template <>
 struct ParamTraits<mozilla::layers::FrameMetrics>
 {
   typedef mozilla::layers::FrameMetrics paramType;
   static void Write(Message* aMsg, const paramType& aParam)
   {
     WriteParam(aMsg, aParam.mScrollableRect);
     WriteParam(aMsg, aParam.mViewport);
     WriteParam(aMsg, aParam.mScrollOffset);
     WriteParam(aMsg, aParam.mDisplayPort);
     WriteParam(aMsg, aParam.mDisplayPortMargins);
     WriteParam(aMsg, aParam.mUseDisplayPortMargins);
     WriteParam(aMsg, aParam.mCriticalDisplayPort);
     WriteParam(aMsg, aParam.mCompositionBounds);
     WriteParam(aMsg, aParam.mRootCompositionSize);
     WriteParam(aMsg, aParam.mScrollId);
     WriteParam(aMsg, aParam.mResolution);
     WriteParam(aMsg, aParam.mCumulativeResolution);
     WriteParam(aMsg, aParam.mZoom);
     WriteParam(aMsg, aParam.mDevPixelsPerCSSPixel);
     WriteParam(aMsg, aParam.mMayHaveTouchListeners);
     WriteParam(aMsg, aParam.mPresShellId);
     WriteParam(aMsg, aParam.mIsRoot);
     WriteParam(aMsg, aParam.mHasScrollgrab);
     WriteParam(aMsg, aParam.mUpdateScrollOffset);
     WriteParam(aMsg, aParam.mScrollGeneration);
     WriteParam(aMsg, aParam.mContentDescription);
     WriteParam(aMsg, aParam.mTransformScale);
   }
   static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
   {
     return (ReadParam(aMsg, aIter, &aResult->mScrollableRect) &&
             ReadParam(aMsg, aIter, &aResult->mViewport) &&
             ReadParam(aMsg, aIter, &aResult->mScrollOffset) &&
             ReadParam(aMsg, aIter, &aResult->mDisplayPort) &&
             ReadParam(aMsg, aIter, &aResult->mDisplayPortMargins) &&
             ReadParam(aMsg, aIter, &aResult->mUseDisplayPortMargins) &&
             ReadParam(aMsg, aIter, &aResult->mCriticalDisplayPort) &&
             ReadParam(aMsg, aIter, &aResult->mCompositionBounds) &&
             ReadParam(aMsg, aIter, &aResult->mRootCompositionSize) &&
             ReadParam(aMsg, aIter, &aResult->mScrollId) &&
             ReadParam(aMsg, aIter, &aResult->mResolution) &&
             ReadParam(aMsg, aIter, &aResult->mCumulativeResolution) &&
             ReadParam(aMsg, aIter, &aResult->mZoom) &&
             ReadParam(aMsg, aIter, &aResult->mDevPixelsPerCSSPixel) &&
             ReadParam(aMsg, aIter, &aResult->mMayHaveTouchListeners) &&
             ReadParam(aMsg, aIter, &aResult->mPresShellId) &&
             ReadParam(aMsg, aIter, &aResult->mIsRoot) &&
             ReadParam(aMsg, aIter, &aResult->mHasScrollgrab) &&
             ReadParam(aMsg, aIter, &aResult->mUpdateScrollOffset) &&
             ReadParam(aMsg, aIter, &aResult->mScrollGeneration) &&
             ReadParam(aMsg, aIter, &aResult->mContentDescription) &&
             ReadParam(aMsg, aIter, &aResult->mTransformScale));
   }
 };
 template<>
 struct ParamTraits<mozilla::layers::TextureFactoryIdentifier>
 {
   typedef mozilla::layers::TextureFactoryIdentifier paramType;
   static void Write(Message* aMsg, const paramType& aParam)
   {
     WriteParam(aMsg, aParam.mParentBackend);
     WriteParam(aMsg, aParam.mMaxTextureSize);
     WriteParam(aMsg, aParam.mSupportsTextureBlitting);
     WriteParam(aMsg, aParam.mSupportsPartialUploads);
   }
   static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
   {
     return ReadParam(aMsg, aIter, &aResult->mParentBackend) &&
            ReadParam(aMsg, aIter, &aResult->mMaxTextureSize) &&
            ReadParam(aMsg, aIter, &aResult->mSupportsTextureBlitting) &&
            ReadParam(aMsg, aIter, &aResult->mSupportsPartialUploads);
   }
 };
 template<>
 struct ParamTraits<mozilla::layers::TextureInfo>
 {
   typedef mozilla::layers::TextureInfo paramType;
   static void Write(Message* aMsg, const paramType& aParam)
   {
     WriteParam(aMsg, aParam.mCompositableType);
     WriteParam(aMsg, aParam.mDeprecatedTextureHostFlags);
     WriteParam(aMsg, aParam.mTextureFlags);
   }
   static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
   {
     return ReadParam(aMsg, aIter, &aResult->mCompositableType) &&
            ReadParam(aMsg, aIter, &aResult->mDeprecatedTextureHostFlags) &&
            ReadParam(aMsg, aIter, &aResult->mTextureFlags);
   }
 };
 template <>
 struct ParamTraits<mozilla::layers::CompositableType>
   : public ContiguousEnumSerializer<
              mozilla::layers::CompositableType,
              mozilla::layers::BUFFER_UNKNOWN,
              mozilla::layers::BUFFER_COUNT>
 {};
 template <>
 struct ParamTraits<mozilla::gfx::SurfaceFormat>
   : public ContiguousTypedEnumSerializer<
              mozilla::gfx::SurfaceFormat,
              mozilla::gfx::SurfaceFormat::B8G8R8A8,
              mozilla::gfx::SurfaceFormat::UNKNOWN>
 {};
 template <>
 struct ParamTraits<mozilla::layers::ScrollableLayerGuid>
 {
   typedef mozilla::layers::ScrollableLayerGuid paramType;
   static void Write(Message* aMsg, const paramType& aParam)
   {
     WriteParam(aMsg, aParam.mLayersId);
     WriteParam(aMsg, aParam.mPresShellId);
     WriteParam(aMsg, aParam.mScrollId);
   }
   static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
   {
     return (ReadParam(aMsg, aIter, &aResult->mLayersId) &&
             ReadParam(aMsg, aIter, &aResult->mPresShellId) &&
             ReadParam(aMsg, aIter, &aResult->mScrollId));
   }
 };
 template <>
 struct ParamTraits<mozilla::layers::ZoomConstraints>
 {
   typedef mozilla::layers::ZoomConstraints paramType;
   static void Write(Message* aMsg, const paramType& aParam)
   {
     WriteParam(aMsg, aParam.mAllowZoom);
     WriteParam(aMsg, aParam.mAllowDoubleTapZoom);
     WriteParam(aMsg, aParam.mMinZoom);
     WriteParam(aMsg, aParam.mMaxZoom);
   }
   static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
   {
     return (ReadParam(aMsg, aIter, &aResult->mAllowZoom) &&
             ReadParam(aMsg, aIter, &aResult->mAllowDoubleTapZoom) &&
             ReadParam(aMsg, aIter, &aResult->mMinZoom) &&
             ReadParam(aMsg, aIter, &aResult->mMaxZoom));
   }
 };
 template <>
 struct ParamTraits<mozilla::layers::EventRegions>
 {
   typedef mozilla::layers::EventRegions paramType;
   static void Write(Message* aMsg, const paramType& aParam)
   {
     WriteParam(aMsg, aParam.mHitRegion);
     WriteParam(aMsg, aParam.mDispatchToContentHitRegion);
   }
   static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
   {
     return (ReadParam(aMsg, aIter, &aResult->mHitRegion) &&
             ReadParam(aMsg, aIter, &aResult->mDispatchToContentHitRegion));
   }
 };
 struct MessageAndAttributeMap
 {
   Message* msg;
   const mozilla::gfx::AttributeMap& map;
 };
 static bool
 WriteAttribute(mozilla::gfx::AttributeName aName,
                mozilla::gfx::AttributeType aType,
                void* aUserData)
 {
   MessageAndAttributeMap* msgAndMap =
     static_cast<MessageAndAttributeMap*>(aUserData);
   WriteParam(msgAndMap->msg, aType);
   WriteParam(msgAndMap->msg, aName);
   switch (aType) {
 #define HANDLE_TYPE(typeName)                                          \
     case mozilla::gfx::AttributeType::e##typeName:                     \
       WriteParam(msgAndMap->msg, msgAndMap->map.Get##typeName(aName)); \
       break;
     HANDLE_TYPE(Bool)
     HANDLE_TYPE(Uint)
     HANDLE_TYPE(Float)
     HANDLE_TYPE(Size)
     HANDLE_TYPE(IntSize)
     HANDLE_TYPE(IntPoint)
     HANDLE_TYPE(Matrix)
     HANDLE_TYPE(Matrix5x4)
     HANDLE_TYPE(Point3D)
     HANDLE_TYPE(Color)
     HANDLE_TYPE(AttributeMap)
     HANDLE_TYPE(Floats)
 #undef HANDLE_TYPE
     default:
       MOZ_CRASH("unhandled attribute type");
   }
   return true;
 }
 template <>
 struct ParamTraits<mozilla::gfx::AttributeMap>
 {
   typedef mozilla::gfx::AttributeMap paramType;
   static void Write(Message* aMsg, const paramType& aParam)
   {
     WriteParam(aMsg, aParam.Count());
     MessageAndAttributeMap msgAndMap = { aMsg, aParam };
     aParam.EnumerateRead(WriteAttribute, &msgAndMap);
   }
   static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
   {
     uint32_t count;
     if (!ReadParam(aMsg, aIter, &count)) {
       return false;
     }
     for (uint32_t i = 0; i < count; i++) {
       mozilla::gfx::AttributeType type;
       if (!ReadParam(aMsg, aIter, &type)) {
         return false;
       }
       mozilla::gfx::AttributeName name;
       if (!ReadParam(aMsg, aIter, &name)) {
         return false;
       }
       switch (type) {
 #define HANDLE_TYPE(type, typeName)                                    \
         case mozilla::gfx::AttributeType::e##typeName:                 \
         {                                                              \
           type value;                                                  \
           if (!ReadParam(aMsg, aIter, &value)) {                       \
             return false;                                              \
           }                                                            \
           aResult->Set(name, value);                                   \
         }
         HANDLE_TYPE(bool, Bool)
         HANDLE_TYPE(uint32_t, Uint)
         HANDLE_TYPE(float, Float)
         HANDLE_TYPE(mozilla::gfx::Size, Size)
         HANDLE_TYPE(mozilla::gfx::IntSize, IntSize)
         HANDLE_TYPE(mozilla::gfx::IntPoint, IntPoint)
         HANDLE_TYPE(mozilla::gfx::Matrix, Matrix)
         HANDLE_TYPE(mozilla::gfx::Matrix5x4, Matrix5x4)
         HANDLE_TYPE(mozilla::gfx::Point3D, Point3D)
         HANDLE_TYPE(mozilla::gfx::Color, Color)
         HANDLE_TYPE(mozilla::gfx::AttributeMap, AttributeMap)
 #undef HANDLE_TYPE
         case mozilla::gfx::AttributeType::eFloats:
         {
           nsTArray<float> value;
           if (!ReadParam(aMsg, aIter, &value)) {
             return false;
           }
           aResult->Set(name, &value[0], value.Length());
           break;
         }
         default:
           MOZ_CRASH("unhandled attribute type");
       }
     }
     return true;
   }
 };
 template <>
 struct ParamTraits<mozilla::gfx::FilterPrimitiveDescription>
 {
   typedef mozilla::gfx::FilterPrimitiveDescription paramType;
   static void Write(Message* aMsg, const paramType& aParam)
   {
     WriteParam(aMsg, aParam.Type());
     WriteParam(aMsg, aParam.PrimitiveSubregion());
     WriteParam(aMsg, aParam.IsTainted());
     WriteParam(aMsg, aParam.OutputColorSpace());
     WriteParam(aMsg, aParam.NumberOfInputs());
     for (size_t i = 0; i < aParam.NumberOfInputs(); i++) {
       WriteParam(aMsg, aParam.InputPrimitiveIndex(i));
       WriteParam(aMsg, aParam.InputColorSpace(i));
     }
     WriteParam(aMsg, aParam.Attributes());
   }
   static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
   {
     mozilla::gfx::PrimitiveType type;
     mozilla::gfx::IntRect primitiveSubregion;
     bool isTainted = false;
     mozilla::gfx::ColorSpace outputColorSpace;
     size_t numberOfInputs = 0;
     if (!ReadParam(aMsg, aIter, &type) ||
         !ReadParam(aMsg, aIter, &primitiveSubregion) ||
         !ReadParam(aMsg, aIter, &isTainted) ||
         !ReadParam(aMsg, aIter, &outputColorSpace) ||
         !ReadParam(aMsg, aIter, &numberOfInputs)) {
       return false;
     }
     aResult->SetType(type);
     aResult->SetPrimitiveSubregion(primitiveSubregion);
     aResult->SetIsTainted(isTainted);
     aResult->SetOutputColorSpace(outputColorSpace);
     for (size_t i = 0; i < numberOfInputs; i++) {
       int32_t inputPrimitiveIndex = 0;
       mozilla::gfx::ColorSpace inputColorSpace;
       if (!ReadParam(aMsg, aIter, &inputPrimitiveIndex) ||
           !ReadParam(aMsg, aIter, &inputColorSpace)) {
         return false;
       }
       aResult->SetInputPrimitive(i, inputPrimitiveIndex);
       aResult->SetInputColorSpace(i, inputColorSpace);
     }
     return ReadParam(aMsg, aIter, &aResult->Attributes());
   }
 };
 template <>
 struct ParamTraits<mozilla::gfx::FilterDescription>
 {
   typedef mozilla::gfx::FilterDescription paramType;
   static void Write(Message* aMsg, const paramType& aParam)
   {
     WriteParam(aMsg, aParam.mFilterSpaceBounds);
     WriteParam(aMsg, aParam.mPrimitives);
   }
   static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
   {
     return (ReadParam(aMsg, aIter, &aResult->mFilterSpaceBounds) &&
             ReadParam(aMsg, aIter, &aResult->mPrimitives));
   }
 };
 typedef mozilla::layers::GeckoContentController::APZStateChange APZStateChange;
 template <>
 struct ParamTraits<APZStateChange>
   : public ContiguousTypedEnumSerializer<
              APZStateChange,
              APZStateChange::TransformBegin,
              APZStateChange::APZStateChangeSentinel>
 {};
 } /* namespace IPC */
 #endif /* __GFXMESSAGEUTILS_H__ */

The Tor Browser / annotate

gfx/ipc/GfxMessageUtils.h@925c144e1f1f (annotated)

gfx/ipc/GfxMessageUtils.h