6b2e6cfd53
One of the annoying things about EGL headers is that they include platform headers by default, e.g. on X11, it's Xlib.h, etc. The problem with Xlib.h is that it uses the define compiler directive to declare constants and those constants have very generic names, e.g. 'None', which typically conflict with enums, etc. In order to work around bad things coming from Xlib.h, we include fixx11.h file that contains some workarounds to redefine some Xlib's types. There's a flag or rather two flags (EGL_NO_PLATFORM_SPECIFIC_TYPES and EGL_NO_X11) that are cross-vendor and they can be used to prevent EGL headers from including platform specific headers, such as Xlib.h [1] The benefit of setting those two flags is that you can simply include EGL/egl.h or epoxy/egl.h and the world won't explode due to Xlib.h MESA_EGL_NO_X11_HEADERS is set to support older versions of Mesa. [1] https://github.com/KhronosGroup/EGL-Registry/pull/111
41 lines
880 B
C++
41 lines
880 B
C++
/*
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KWin - the KDE window manager
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This file is part of the KDE project.
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SPDX-FileCopyrightText: 2015 Martin Gräßlin <mgraesslin@kde.org>
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SPDX-FileCopyrightText: 2019 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef KWIN_QPA_BACKINGSTORE_H
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#define KWIN_QPA_BACKINGSTORE_H
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#include <epoxy/egl.h>
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#include "fixqopengl.h"
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#include <qpa/qplatformbackingstore.h>
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namespace KWin
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{
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namespace QPA
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{
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class BackingStore : public QPlatformBackingStore
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{
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public:
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explicit BackingStore(QWindow *window);
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~BackingStore() override;
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QPaintDevice *paintDevice() override;
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void flush(QWindow *window, const QRegion ®ion, const QPoint &offset) override;
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void resize(const QSize &size, const QRegion &staticContents) override;
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private:
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QImage m_backBuffer;
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QImage m_frontBuffer;
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};
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}
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}
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#endif
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