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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 "qsgopenvgpainternode.h"
#include "qsgopenvgtexture.h"
#include <private/qsgcontext_p.h>
#include <qmath.h>
#include <QtGui/QPainter>
QT_BEGIN_NAMESPACE
QSGOpenVGPainterNode::QSGOpenVGPainterNode(QQuickPaintedItem *item)
: m_preferredRenderTarget(QQuickPaintedItem::Image)
, m_item(item)
, m_texture(nullptr)
, m_dirtyContents(false)
, m_opaquePainting(false)
, m_linear_filtering(false)
, m_smoothPainting(false)
, m_fillColor(Qt::transparent)
, m_contentsScale(1.0)
, m_dirtyGeometry(false)
{
// Set Dummy material and geometry to avoid asserts
setMaterial((QSGMaterial*)1);
setGeometry((QSGGeometry*)1);
}
QSGOpenVGPainterNode::~QSGOpenVGPainterNode()
{
delete m_texture;
}
void QSGOpenVGPainterNode::setPreferredRenderTarget(QQuickPaintedItem::RenderTarget)
{
}
void QSGOpenVGPainterNode::setSize(const QSize &size)
{
if (size == m_size)
return;
m_size = size;
m_dirtyGeometry = true;
}
void QSGOpenVGPainterNode::setDirty(const QRect &dirtyRect)
{
m_dirtyContents = true;
m_dirtyRect = dirtyRect;
markDirty(DirtyMaterial);
}
void QSGOpenVGPainterNode::setOpaquePainting(bool opaque)
{
if (opaque == m_opaquePainting)
return;
m_opaquePainting = opaque;
}
void QSGOpenVGPainterNode::setLinearFiltering(bool linearFiltering)
{
if (linearFiltering == m_linear_filtering)
return;
m_linear_filtering = linearFiltering;
}
void QSGOpenVGPainterNode::setMipmapping(bool)
{
}
void QSGOpenVGPainterNode::setSmoothPainting(bool s)
{
if (s == m_smoothPainting)
return;
m_smoothPainting = s;
}
void QSGOpenVGPainterNode::setFillColor(const QColor &c)
{
if (c == m_fillColor)
return;
m_fillColor = c;
markDirty(DirtyMaterial);
}
void QSGOpenVGPainterNode::setContentsScale(qreal s)
{
if (s == m_contentsScale)
return;
m_contentsScale = s;
markDirty(DirtyMaterial);
}
void QSGOpenVGPainterNode::setFastFBOResizing(bool)
{
}
void QSGOpenVGPainterNode::setTextureSize(const QSize &size)
{
if (size == m_textureSize)
return;
m_textureSize = size;
m_dirtyGeometry = true;
}
QImage QSGOpenVGPainterNode::toImage() const
{
return m_image;
}
void QSGOpenVGPainterNode::update()
{
if (m_dirtyGeometry) {
if (!m_opaquePainting)
m_image = QImage(m_size, QImage::Format_ARGB32_Premultiplied);
else
m_image = QImage(m_size, QImage::Format_RGB32);
}
if (m_dirtyContents)
paint();
m_dirtyGeometry = false;
m_dirtyContents = false;
}
QSGTexture *QSGOpenVGPainterNode::texture() const
{
return m_texture;
}
void QSGOpenVGPainterNode::render()
{
if (!m_texture)
return;
// Set Draw Mode
if (opacity() < 1.0) {
//Transparent
vgSetPaint(opacityPaint(), VG_FILL_PATH);
vgSeti(VG_IMAGE_MODE, VG_DRAW_IMAGE_MULTIPLY);
} else {
vgSeti(VG_IMAGE_MODE, VG_DRAW_IMAGE_NORMAL);
}
if (m_linear_filtering)
vgSeti(VG_IMAGE_QUALITY, VG_IMAGE_QUALITY_BETTER);
else
vgSeti(VG_IMAGE_QUALITY, VG_IMAGE_QUALITY_NONANTIALIASED);
// Set Transform
vgSeti(VG_MATRIX_MODE, VG_MATRIX_IMAGE_USER_TO_SURFACE);
vgLoadMatrix(transform().constData());
vgDrawImage(static_cast<VGImage>(m_texture->comparisonKey()));
}
void QSGOpenVGPainterNode::paint()
{
QRect dirtyRect = m_dirtyRect.isNull() ? QRect(0, 0, m_size.width(), m_size.height()) : m_dirtyRect;
QPainter painter;
painter.begin(&m_image);
if (m_smoothPainting) {
painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::SmoothPixmapTransform);
}
QRect clipRect;
if (m_contentsScale == 1) {
qreal scaleX = m_textureSize.width() / (qreal) m_size.width();
qreal scaleY = m_textureSize.height() / (qreal) m_size.height();
painter.scale(scaleX, scaleY);
clipRect = dirtyRect;
} else {
painter.scale(m_contentsScale, m_contentsScale);
QRect sclip(qFloor(dirtyRect.x()/m_contentsScale),
qFloor(dirtyRect.y()/m_contentsScale),
qCeil(dirtyRect.width()/m_contentsScale+dirtyRect.x()/m_contentsScale-qFloor(dirtyRect.x()/m_contentsScale)),
qCeil(dirtyRect.height()/m_contentsScale+dirtyRect.y()/m_contentsScale-qFloor(dirtyRect.y()/m_contentsScale)));
clipRect = sclip;
}
if (!m_dirtyRect.isNull())
painter.setClipRect(clipRect);
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.fillRect(clipRect, m_fillColor);
painter.setCompositionMode(QPainter::CompositionMode_SourceOver);
m_item->paint(&painter);
painter.end();
m_dirtyRect = QRect();
if (m_texture)
delete m_texture;
uint textureFlags = m_opaquePainting ? 0 : QSGRenderContext::CreateTexture_Alpha;
m_texture = new QSGOpenVGTexture(m_image, textureFlags);
}
QT_END_NAMESPACE
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