qsgmaterial.cpp

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include "qsgmaterial.h"
#include "qsgrenderer_p.h"
 
QT_BEGIN_NAMESPACE
 
Q_DECLARE_LOGGING_CATEGORY(lcQsgLeak)
 
#ifndef QT_NO_DEBUG
bool qsg_material_failure = false;
bool qsg_test_and_clear_material_failure()
{
    bool fail = qsg_material_failure;
    qsg_material_failure = false;
    return fail;
}
 
void qsg_set_material_failure()
{
    qsg_material_failure = true;
}
#endif
 
#ifndef QT_NO_DEBUG
static int qt_material_count = 0;
 
static void qt_print_material_count()
{
    qCDebug(lcQsgLeak, "Number of leaked materials: %i", qt_material_count);
    qt_material_count = -1;
}
#endif
 
QSGMaterial::QSGMaterial()
{
    Q_UNUSED(m_reserved);
#ifndef QT_NO_DEBUG
    if (lcQsgLeak().isDebugEnabled()) {
        ++qt_material_count;
        static bool atexit_registered = false;
        if (!atexit_registered) {
            atexit(qt_print_material_count);
            atexit_registered = true;
        }
    }
#endif
}
 
 
QSGMaterial::~QSGMaterial()
{
#ifndef QT_NO_DEBUG
    if (lcQsgLeak().isDebugEnabled()) {
        --qt_material_count;
        if (qt_material_count < 0)
            qCDebug(lcQsgLeak, "Material destroyed after qt_print_material_count() was called.");
    }
#endif
}
 
 
 
void QSGMaterial::setFlag(Flags flags, bool on)
{
    if (on)
        m_flags |= flags;
    else
        m_flags &= ~flags;
}
 
 
 
int QSGMaterial::compare(const QSGMaterial *other) const
{
    Q_ASSERT(other && type() == other->type());
    const qintptr diff = qintptr(this) - qintptr(other);
    return diff < 0 ? -1 : (diff > 0 ? 1 : 0);
}
 
 
 
int QSGMaterial::viewCount() const
{
    if (m_flags.testFlag(MultiView4))
        return 4;
    if (m_flags.testFlag(MultiView3))
        return 3;
    if (m_flags.testFlag(MultiView2))
        return 2;
    return 1;
}
 
QT_END_NAMESPACE