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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 "qsgsoftwarepixmaprenderer_p.h"
#include "qsgsoftwarecontext_p.h"
#include <QtQuick/QSGSimpleRectNode>
#include <QElapsedTimer>
Q_LOGGING_CATEGORY(lcPixmapRenderer, "qt.scenegraph.softwarecontext.pixmapRenderer")
QT_BEGIN_NAMESPACE
QSGSoftwarePixmapRenderer::QSGSoftwarePixmapRenderer(QSGRenderContext *context)
: QSGAbstractSoftwareRenderer(context)
{
}
QSGSoftwarePixmapRenderer::~QSGSoftwarePixmapRenderer()
{
}
void QSGSoftwarePixmapRenderer::renderScene()
{
QSGRenderer::renderScene();
}
void QSGSoftwarePixmapRenderer::render()
{
}
void QSGSoftwarePixmapRenderer::render(QPaintDevice *target)
{
QElapsedTimer renderTimer;
// Setup background item
setBackgroundRect(m_projectionRect.normalized(), qreal(1));
setBackgroundColor(clearColor());
renderTimer.start();
buildRenderList();
qint64 buildRenderListTime = renderTimer.restart();
// Optimize Renderlist
// Right now there is an assumption that when possible the same pixmap will
// be reused. So we can treat it like a backing store in that we can assume
// that when the pixmap is not being resized, the data can be reused. What is
// different though is that everything should be marked as dirty on a resize.
optimizeRenderList();
qint64 optimizeRenderListTime = renderTimer.restart();
if (!isOpaque() && target->devType() == QInternal::Pixmap) {
// This fill here is wasteful, but necessary because it is the only way
// to force a QImage based pixmap to have an alpha channel.
static_cast<QPixmap *>(target)->fill(Qt::transparent);
}
QPainter painter(target);
painter.setRenderHint(QPainter::Antialiasing);
painter.setWindow(m_projectionRect);
auto rc = static_cast<QSGSoftwareRenderContext *>(context());
QPainter *prevPainter = rc->m_activePainter;
rc->m_activePainter = &painter;
QRegion paintedRegion = renderNodes(&painter);
qint64 renderTime = renderTimer.elapsed();
rc->m_activePainter = prevPainter;
qCDebug(lcPixmapRenderer) << "pixmapRender" << paintedRegion << buildRenderListTime << optimizeRenderListTime << renderTime;
}
void QSGSoftwarePixmapRenderer::setProjectionRect(const QRect &projectionRect)
{
m_projectionRect = projectionRect;
}
QT_END_NAMESPACE
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