gecko-dev/gfx/layers/wr/WebRenderMessageUtils.h

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * 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 GFX_WEBRENDERMESSAGEUTILS_H
#define GFX_WEBRENDERMESSAGEUTILS_H

#include "chrome/common/ipc_message_utils.h"

#include "mozilla/webrender/webrender_ffi.h"
#include "mozilla/webrender/WebRenderTypes.h"

namespace IPC {

template<>
struct ParamTraits<mozilla::wr::ByteBuffer>
{
  typedef mozilla::wr::ByteBuffer paramType;

  static void
  Write(Message* aMsg, const paramType& aParam)
  {
    WriteParam(aMsg, aParam.mLength);
    aMsg->WriteBytes(aParam.mData, aParam.mLength);
  }

  static bool
  Read(const Message* aMsg, PickleIterator* aIter, paramType* aResult)
  {
    size_t length;
    return ReadParam(aMsg, aIter, &length)
        && aResult->Allocate(length)
        && aMsg->ReadBytesInto(aIter, aResult->mData, length);
  }
};

template<>
struct ParamTraits<mozilla::wr::ImageDescriptor>
{
  typedef mozilla::wr::ImageDescriptor paramType;

  static void
  Write(Message* aMsg, const paramType& aParam)
  {
    WriteParam(aMsg, aParam.format);
    WriteParam(aMsg, aParam.width);
    WriteParam(aMsg, aParam.height);
    WriteParam(aMsg, aParam.stride);
    WriteParam(aMsg, aParam.is_opaque);
  }

  static bool
  Read(const Message* aMsg, PickleIterator* aIter, paramType* aResult)
  {
    return ReadParam(aMsg, aIter, &aResult->format)
        && ReadParam(aMsg, aIter, &aResult->width)
        && ReadParam(aMsg, aIter, &aResult->height)
        && ReadParam(aMsg, aIter, &aResult->stride)
        && ReadParam(aMsg, aIter, &aResult->is_opaque);
  }
};

template<>
struct ParamTraits<mozilla::wr::IdNamespace>
  : public PlainOldDataSerializer<mozilla::wr::IdNamespace>
{
};

template<>
struct ParamTraits<mozilla::wr::ImageKey>
  : public PlainOldDataSerializer<mozilla::wr::ImageKey>
{
};

template<>
struct ParamTraits<mozilla::wr::FontKey>
  : public PlainOldDataSerializer<mozilla::wr::FontKey>
{
};

template<>
struct ParamTraits<mozilla::wr::FontInstanceKey>
  : public PlainOldDataSerializer<mozilla::wr::FontInstanceKey>
{
};

template<>
struct ParamTraits<mozilla::wr::FontInstanceOptions>
  : public PlainOldDataSerializer<mozilla::wr::FontInstanceOptions>
{
};

template<>
struct ParamTraits<mozilla::wr::FontInstancePlatformOptions>
  : public PlainOldDataSerializer<mozilla::wr::FontInstancePlatformOptions>
{
};

template<>
struct ParamTraits<mozilla::wr::ExternalImageId>
  : public PlainOldDataSerializer<mozilla::wr::ExternalImageId>
{
};

template<>
struct ParamTraits<mozilla::wr::PipelineId>
  : public PlainOldDataSerializer<mozilla::wr::PipelineId>
{
};

template<>
struct ParamTraits<mozilla::wr::ImageFormat>
  : public ContiguousEnumSerializer<
        mozilla::wr::ImageFormat,
        mozilla::wr::ImageFormat::Invalid,
        mozilla::wr::ImageFormat::Sentinel>
{
};

template<>
struct ParamTraits<mozilla::wr::LayoutSize>
  : public PlainOldDataSerializer<mozilla::wr::LayoutSize>
{
};

template<>
struct ParamTraits<mozilla::wr::LayoutRect>
  : public PlainOldDataSerializer<mozilla::wr::LayoutRect>
{
};

template<>
struct ParamTraits<mozilla::wr::LayoutPoint>
  : public PlainOldDataSerializer<mozilla::wr::LayoutPoint>
{
};

template<>
struct ParamTraits<mozilla::wr::WrImageMask>
  : public PlainOldDataSerializer<mozilla::wr::WrImageMask>
{
};

template<>
struct ParamTraits<mozilla::wr::ImageRendering>
  : public ContiguousEnumSerializer<
        mozilla::wr::ImageRendering,
        mozilla::wr::ImageRendering::Auto,
        mozilla::wr::ImageRendering::Sentinel>
{
};

template<>
struct ParamTraits<mozilla::wr::MixBlendMode>
  : public ContiguousEnumSerializer<
        mozilla::wr::MixBlendMode,
        mozilla::wr::MixBlendMode::Normal,
        mozilla::wr::MixBlendMode::Sentinel>
{
};

template<>
struct ParamTraits<mozilla::wr::BuiltDisplayListDescriptor>
  : public PlainOldDataSerializer<mozilla::wr::BuiltDisplayListDescriptor>
{
};

template<>
struct ParamTraits<mozilla::wr::WebRenderError>
  : public ContiguousEnumSerializer<
        mozilla::wr::WebRenderError,
        mozilla::wr::WebRenderError::INITIALIZE,
        mozilla::wr::WebRenderError::Sentinel>
{
};

} // namespace IPC

#endif // GFX_WEBRENDERMESSAGEUTILS_H