gecko-dev/gfx/layers/ipc/ShadowLayerUtilsX11.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=8 et :
*/
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at:
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Code.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Chris Jones <jones.chris.g@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* ***** END LICENSE BLOCK ***** */
#ifndef mozilla_layers_ShadowLayerUtilsX11_h
#define mozilla_layers_ShadowLayerUtilsX11_h
#include <X11/extensions/Xrender.h>
#include <X11/Xlib.h>
#include "IPC/IPCMessageUtils.h"
#define MOZ_HAVE_SURFACEDESCRIPTORX11
#define MOZ_HAVE_PLATFORM_SPECIFIC_LAYER_BUFFERS
class gfxXlibSurface;
namespace mozilla {
namespace layers {
struct SurfaceDescriptorX11 {
SurfaceDescriptorX11()
{ }
SurfaceDescriptorX11(gfxXlibSurface* aSurf);
// Default copy ctor and operator= are OK
bool operator==(const SurfaceDescriptorX11& aOther) const {
// Define == as two descriptors having the same XID for now,
// ignoring size and render format. If the two indeed refer to
// the same valid XID, then size/format are "actually" the same
// anyway, regardless of the values of the fields in
// SurfaceDescriptorX11.
return mId == aOther.mId;
}
already_AddRefed<gfxXlibSurface> OpenForeign() const;
Drawable mId;
gfxIntSize mSize;
PictFormat mFormat;
};
} // namespace layers
} // namespace mozilla
namespace IPC {
template <>
struct ParamTraits<mozilla::layers::SurfaceDescriptorX11> {
typedef mozilla::layers::SurfaceDescriptorX11 paramType;
static void Write(Message* aMsg, const paramType& aParam) {
WriteParam(aMsg, aParam.mId);
WriteParam(aMsg, aParam.mSize);
WriteParam(aMsg, aParam.mFormat);
}
static bool Read(const Message* aMsg, void** aIter, paramType* aResult) {
return (ReadParam(aMsg, aIter, &aResult->mId) &&
ReadParam(aMsg, aIter, &aResult->mSize) &&
ReadParam(aMsg, aIter, &aResult->mFormat));
}
};
} // namespace IPC
#endif // mozilla_layers_ShadowLayerUtilsX11_h