Differential D22150 Diff 60950 plugins/qpa/offscreensurface.cpp

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plugins/qpa/offscreensurface.cpp

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		1		/********************************************************************
		2		KWin - the KDE window manager
		3		This file is part of the KDE project.
		4
		5		Copyright (C) 2019 Vlad Zagorodniy <vladzzag@gmail.com>
		6
		7		This program is free software; you can redistribute it and/or modify
		8		it under the terms of the GNU General Public License as published by
		9		the Free Software Foundation; either version 2 of the License, or
		10		(at your option) any later version.
		11
		12		This program is distributed in the hope that it will be useful,
		13		but WITHOUT ANY WARRANTY; without even the implied warranty of
		14		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		15		GNU General Public License for more details.
		16
		17		You should have received a copy of the GNU General Public License
		18		along with this program. If not, see <http://www.gnu.org/licenses/>.
		19		*********************************************************************/
		20
		21		#include "offscreensurface.h"
		22		#include "eglhelpers.h"
		23		#include "main.h"
		24		#include "platform.h"
		25
		26		#include <QOffscreenSurface>
		27
		28		namespace KWin
		29		{
		30		namespace QPA
		31		{
		32
		33		OffscreenSurface::OffscreenSurface(QOffscreenSurface *surface)
		34		: QPlatformOffscreenSurface(surface)
		35		, m_eglDisplay(kwinApp()->platform()->sceneEglDisplay())
		36		{
		37		const QSize size = surface->size();
		38
		39		EGLConfig config = configFromFormat(m_eglDisplay, surface->requestedFormat(), EGL_PBUFFER_BIT);
		40		if (config == EGL_NO_CONFIG_KHR) {
		41		return;
		42		}
		43
		44		const EGLint attributes[] = {
		45		EGL_WIDTH, size.width(),
		46		EGL_HEIGHT, size.height(),
		47		EGL_NONE
		48		};
		49
		50		m_surface = eglCreatePbufferSurface(m_eglDisplay, config, attributes);
		51		if (m_surface == EGL_NO_SURFACE) {
		52		return;
		53		}
		54
		55		// Requested and actual surface format might be different.
		56		m_format = formatFromConfig(m_eglDisplay, config);
		57		}
		58
		59		OffscreenSurface::~OffscreenSurface()
		60		{
		61		if (m_surface != EGL_NO_SURFACE) {
		62		eglDestroySurface(m_eglDisplay, m_surface);
		63		}
		64		}
		65
		66		QSurfaceFormat OffscreenSurface::format() const
		67		{
		68		return m_format;
		69		}
		70
		71		bool OffscreenSurface::isValid() const
		72		{
		73		return m_surface != EGL_NO_SURFACE;
		74		}
		75
		76		EGLSurface OffscreenSurface::nativeHandle() const
		77		{
		78		return m_surface;
		79		}
		80
		81		} // namespace QPA
		82		} // namespace KWin