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/****************************************************************************
**
** Copyright (C) 2016 Canonical, Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qmirclientglcontext.h"
#include "qmirclientlogging.h"
#include "qmirclientwindow.h"
#include <QOpenGLFramebufferObject>
#include <QtEglSupport/private/qeglconvenience_p.h>
#include <QtEglSupport/private/qeglpbuffer_p.h>
#include <QtGui/private/qopenglcontext_p.h>
Q_LOGGING_CATEGORY(mirclientGraphics, "qt.qpa.mirclient.graphics", QtWarningMsg)
namespace {
void printEglConfig(EGLDisplay display, EGLConfig config)
{
Q_ASSERT(display != EGL_NO_DISPLAY);
Q_ASSERT(config != nullptr);
const char *string = eglQueryString(display, EGL_VENDOR);
qCDebug(mirclientGraphics, "EGL vendor: %s", string);
string = eglQueryString(display, EGL_VERSION);
qCDebug(mirclientGraphics, "EGL version: %s", string);
string = eglQueryString(display, EGL_EXTENSIONS);
qCDebug(mirclientGraphics, "EGL extensions: %s", string);
qCDebug(mirclientGraphics, "EGL configuration attributes:");
q_printEglConfig(display, config);
}
} // anonymous namespace
QMirClientOpenGLContext::QMirClientOpenGLContext(const QSurfaceFormat &format, QPlatformOpenGLContext *share,
EGLDisplay display)
: QEGLPlatformContext(format, share, display, 0)
{
if (mirclientGraphics().isDebugEnabled()) {
printEglConfig(display, eglConfig());
}
}
static bool needsFBOReadBackWorkaround()
{
static bool set = false;
static bool needsWorkaround = false;
if (Q_UNLIKELY(!set)) {
const char *rendererString = reinterpret_cast<const char *>(glGetString(GL_RENDERER));
needsWorkaround = qstrncmp(rendererString, "Mali-400", 8) == 0
|| qstrncmp(rendererString, "Mali-T7", 7) == 0
|| qstrncmp(rendererString, "PowerVR Rogue G6200", 19) == 0;
set = true;
}
return needsWorkaround;
}
bool QMirClientOpenGLContext::makeCurrent(QPlatformSurface* surface)
{
const bool ret = QEGLPlatformContext::makeCurrent(surface);
if (Q_LIKELY(ret)) {
QOpenGLContextPrivate *ctx_d = QOpenGLContextPrivate::get(context());
if (!ctx_d->workaround_brokenFBOReadBack && needsFBOReadBackWorkaround()) {
ctx_d->workaround_brokenFBOReadBack = true;
}
}
return ret;
}
// Following method used internally in the base class QEGLPlatformContext to access
// the egl surface of a QPlatformSurface/QMirClientWindow
EGLSurface QMirClientOpenGLContext::eglSurfaceForPlatformSurface(QPlatformSurface *surface)
{
if (surface->surface()->surfaceClass() == QSurface::Window) {
return static_cast<QMirClientWindow *>(surface)->eglSurface();
} else {
return static_cast<QEGLPbuffer *>(surface)->pbuffer();
}
}
void QMirClientOpenGLContext::swapBuffers(QPlatformSurface* surface)
{
QEGLPlatformContext::swapBuffers(surface);
if (surface->surface()->surfaceClass() == QSurface::Window) {
// notify window on swap completion
auto platformWindow = static_cast<QMirClientWindow *>(surface);
platformWindow->onSwapBuffersDone();
}
}
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