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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtWaylandCompositor module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "xcompositeeglintegration.h"
#include "wayland-xcomposite-server-protocol.h"
#include <QtWaylandCompositor/QWaylandCompositor>
#include <QtGui/QGuiApplication>
#include <qpa/qplatformnativeinterface.h>
#include <qpa/qplatformopenglcontext.h>
#include "xcompositebuffer.h"
#include "xcompositehandler.h"
#include <X11/extensions/Xcomposite.h>
#include <QtCore/QDebug>
QT_BEGIN_NAMESPACE
QVector<EGLint> eglbuildSpec()
{
QVector<EGLint> spec;
spec.append(EGL_SURFACE_TYPE); spec.append(EGL_WINDOW_BIT | EGL_PIXMAP_BIT);
spec.append(EGL_RENDERABLE_TYPE); spec.append(EGL_OPENGL_ES2_BIT);
spec.append(EGL_BIND_TO_TEXTURE_RGBA); spec.append(EGL_TRUE);
spec.append(EGL_ALPHA_SIZE); spec.append(8);
spec.append(EGL_NONE);
return spec;
}
XCompositeEglClientBufferIntegration::XCompositeEglClientBufferIntegration()
: QtWayland::ClientBufferIntegration()
, mDisplay(0)
{
}
void XCompositeEglClientBufferIntegration::initializeHardware(struct ::wl_display *)
{
QPlatformNativeInterface *nativeInterface = QGuiApplication::platformNativeInterface();
if (nativeInterface) {
mDisplay = static_cast<Display *>(nativeInterface->nativeResourceForIntegration("Display"));
if (!mDisplay)
qFatal("could not retrieve Display from platform integration");
mEglDisplay = static_cast<EGLDisplay>(nativeInterface->nativeResourceForIntegration("EGLDisplay"));
if (!mEglDisplay)
qFatal("could not retrieve EGLDisplay from platform integration");
} else {
qFatal("Platform integration doesn't have native interface");
}
mScreen = XDefaultScreen(mDisplay);
new XCompositeHandler(m_compositor, mDisplay);
}
void XCompositeEglClientBufferIntegration::bindTextureToBuffer(struct ::wl_resource *buffer)
{
XCompositeBuffer *compositorBuffer = XCompositeBuffer::fromResource(buffer);
Pixmap pixmap = XCompositeNameWindowPixmap(mDisplay, compositorBuffer->window());
QVector<EGLint> eglConfigSpec = eglbuildSpec();
EGLint matching = 0;
EGLConfig config;
bool matched = eglChooseConfig(mEglDisplay,eglConfigSpec.constData(),&config,1,&matching);
if (!matched || !matching) {
qWarning("Could not retrieve a suitable EGL config");
return;
}
QVector<EGLint> attribList;
attribList.append(EGL_TEXTURE_FORMAT);
attribList.append(EGL_TEXTURE_RGBA);
attribList.append(EGL_TEXTURE_TARGET);
attribList.append(EGL_TEXTURE_2D);
attribList.append(EGL_NONE);
EGLSurface surface = eglCreatePixmapSurface(mEglDisplay,config,pixmap,attribList.constData());
if (surface == EGL_NO_SURFACE) {
qDebug() << "Failed to create eglsurface" << pixmap << compositorBuffer->window();
}
compositorBuffer->setOrigin(QWaylandSurface::OriginTopLeft);
if (!eglBindTexImage(mEglDisplay,surface,EGL_BACK_BUFFER)) {
qDebug() << "Failed to bind";
}
// eglDestroySurface(mEglDisplay,surface);
}
QWaylandSurface::Origin XCompositeEglClientBufferIntegration::origin(struct ::wl_resource *buffer) const
{
XCompositeBuffer *compositorBuffer = XCompositeBuffer::fromResource(buffer);
return compositorBuffer->origin();
}
QSize XCompositeEglClientBufferIntegration::bufferSize(struct ::wl_resource *buffer) const
{
XCompositeBuffer *compositorBuffer = XCompositeBuffer::fromResource(buffer);
return compositorBuffer->size();
}
QT_END_NAMESPACE
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