mirror of
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82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=8 et :
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_layers_ShadowLayerUtilsX11_h
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#define mozilla_layers_ShadowLayerUtilsX11_h
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#include "ipc/IPCMessageUtils.h"
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#include "mozilla/GfxMessageUtils.h"
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#include "nsCOMPtr.h" // for already_AddRefed
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#define MOZ_HAVE_SURFACEDESCRIPTORX11
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#define MOZ_HAVE_PLATFORM_SPECIFIC_LAYER_BUFFERS
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typedef unsigned long XID;
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typedef XID Drawable;
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class gfxXlibSurface;
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namespace IPC {
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class Message;
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}
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namespace mozilla {
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namespace layers {
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struct SurfaceDescriptorX11 {
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SurfaceDescriptorX11()
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{ }
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SurfaceDescriptorX11(gfxXlibSurface* aSurf);
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SurfaceDescriptorX11(Drawable aDrawable, XID aFormatID,
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const gfx::IntSize& aSize);
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// Default copy ctor and operator= are OK
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bool operator==(const SurfaceDescriptorX11& aOther) const {
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// Define == as two descriptors having the same XID for now,
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// ignoring size and render format. If the two indeed refer to
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// the same valid XID, then size/format are "actually" the same
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// anyway, regardless of the values of the fields in
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// SurfaceDescriptorX11.
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return mId == aOther.mId;
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}
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already_AddRefed<gfxXlibSurface> OpenForeign() const;
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Drawable mId;
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XID mFormat; // either a PictFormat or VisualID
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gfx::IntSize mSize;
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};
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} // namespace layers
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} // namespace mozilla
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namespace IPC {
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template <>
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struct ParamTraits<mozilla::layers::SurfaceDescriptorX11> {
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typedef mozilla::layers::SurfaceDescriptorX11 paramType;
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static void Write(Message* aMsg, const paramType& aParam) {
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WriteParam(aMsg, aParam.mId);
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WriteParam(aMsg, aParam.mSize);
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WriteParam(aMsg, aParam.mFormat);
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}
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static bool Read(const Message* aMsg, void** aIter, paramType* aResult) {
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return (ReadParam(aMsg, aIter, &aResult->mId) &&
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ReadParam(aMsg, aIter, &aResult->mSize) &&
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ReadParam(aMsg, aIter, &aResult->mFormat));
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}
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};
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} // namespace IPC
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#endif // mozilla_layers_ShadowLayerUtilsX11_h
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