| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtQuick module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
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| ** GNU Lesser General Public License Usage |
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| ** General Public License version 3 as published by the Free Software |
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| ** packaging of this file. Please review the following information to |
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| ** |
| ** 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 |
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| ** $QT_END_LICENSE$ |
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| ****************************************************************************/ |
| |
| #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->textureId())); |
| } |
| |
| 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 |
| |
| |