| /* |
| * 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 |