gfx/layers/ipc/ShadowLayerUtils.h
author Chris Jones <jones.chris.g@gmail.com>
Fri, 03 Sep 2010 15:10:46 -0500
changeset 54083 8321155e8dad2fb39353be91023c23f85600f215
parent 54077 2e7de8c7da34571cee3f94ea6c1dd7b0334c6fbd
child 54102 fdb0145ee11701331295c7e115a8e15b21bb6f8f
permissions -rw-r--r--
Bug 590294, part 8: Implement resolution-scaled drawing for basic layers. r=roc

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 *   Chris Jones <jones.chris.g@gmail.com>
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#ifndef IPC_ShadowLayerUtils_h
#define IPC_ShadowLayerUtils_h

#include "IPC/IPCMessageUtils.h"
#include "Layers.h"

namespace IPC {

template <>
struct ParamTraits<mozilla::layers::FrameMetrics>
{
  typedef mozilla::layers::FrameMetrics paramType;

  static void Write(Message* aMsg, const paramType& aParam)
  {
    WriteParam(aMsg, aParam.mViewportSize);
    WriteParam(aMsg, aParam.mViewportScrollOffset);
    WriteParam(aMsg, aParam.mDisplayPort);
  }

  static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
  {
    return (ReadParam(aMsg, aIter, &aResult->mViewportSize) &&
            ReadParam(aMsg, aIter, &aResult->mViewportScrollOffset) &&
            ReadParam(aMsg, aIter, &aResult->mDisplayPort));
  }
};

}

#endif // IPC_ShadowLayerUtils_h