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/*
* Copyright (C) 2015 Igalia S.L
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef XUniqueResource_h
#define XUniqueResource_h
#if PLATFORM(X11)
#if USE(GLX)
typedef unsigned long GLXPbuffer;
typedef unsigned long GLXPixmap;
#endif
namespace WebCore {
enum class XResource {
Colormap,
#if PLATFORM(GTK)
Damage,
#endif
Pixmap,
Window,
#if USE(GLX)
GLXPbuffer,
GLXPixmap,
#endif
};
template <XResource T> class XUniqueResource {
public:
XUniqueResource()
{
}
XUniqueResource(unsigned long resource)
: m_resource(resource)
{
}
XUniqueResource(XUniqueResource&& uniqueResource)
: m_resource(uniqueResource.release())
{
}
XUniqueResource& operator=(XUniqueResource&& uniqueResource)
{
reset(uniqueResource.release());
return *this;
}
~XUniqueResource()
{
reset();
}
unsigned long get() const { return m_resource; }
unsigned long release() { return std::exchange(m_resource, 0); }
void reset(unsigned long resource = 0)
{
std::swap(m_resource, resource);
deleteXResource(resource);
}
explicit operator bool() const { return m_resource; }
private:
static void deleteXResource(unsigned long resource);
unsigned long m_resource { 0 };
};
using XUniqueColormap = XUniqueResource<XResource::Colormap>;
#if PLATFORM(GTK)
using XUniqueDamage = XUniqueResource<XResource::Damage>;
#endif
using XUniquePixmap = XUniqueResource<XResource::Pixmap>;
using XUniqueWindow = XUniqueResource<XResource::Window>;
#if USE(GLX)
using XUniqueGLXPbuffer = XUniqueResource<XResource::GLXPbuffer>;
using XUniqueGLXPixmap = XUniqueResource<XResource::GLXPixmap>;
#endif
} // namespace WebCore
#endif // PLATFORM(X11)
#endif // XUniqueResource_h
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