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39
40#include "qsgsoftwarepainternode_p.h"
41#include "qsgsoftwarepixmaptexture_p.h"
42#include <qmath.h>
43
44QT_BEGIN_NAMESPACE
45
46QSGSoftwarePainterNode::QSGSoftwarePainterNode(QQuickPaintedItem *item)
47 : QSGPainterNode()
48 , m_preferredRenderTarget(QQuickPaintedItem::Image)
49 , m_item(item)
50 , m_texture(nullptr)
51 , m_dirtyContents(false)
52 , m_opaquePainting(false)
53 , m_linear_filtering(false)
54 , m_mipmapping(false)
55 , m_smoothPainting(false)
56 , m_fastFBOResizing(false)
57 , m_fillColor(Qt::transparent)
58 , m_contentsScale(1.0)
59 , m_dirtyGeometry(false)
60{
61 setMaterial((QSGMaterial*)1);
62 setGeometry((QSGGeometry*)1);
63}
64
65QSGSoftwarePainterNode::~QSGSoftwarePainterNode()
66{
67 delete m_texture;
68}
69
70void QSGSoftwarePainterNode::setPreferredRenderTarget(QQuickPaintedItem::RenderTarget target)
71{
72 if (m_preferredRenderTarget == target)
73 return;
74
75 m_preferredRenderTarget = target;
76}
77
78void QSGSoftwarePainterNode::setSize(const QSize &size)
79{
80 if (size == m_size)
81 return;
82
83 m_size = size;
84
85 m_dirtyGeometry = true;
86}
87
88void QSGSoftwarePainterNode::setDirty(const QRect &dirtyRect)
89{
90 m_dirtyContents = true;
91 m_dirtyRect = dirtyRect;
92 markDirty(bits: DirtyMaterial);
93}
94
95void QSGSoftwarePainterNode::setOpaquePainting(bool opaque)
96{
97 if (opaque == m_opaquePainting)
98 return;
99
100 m_opaquePainting = opaque;
101}
102
103void QSGSoftwarePainterNode::setLinearFiltering(bool linearFiltering)
104{
105 if (linearFiltering == m_linear_filtering)
106 return;
107
108 m_linear_filtering = linearFiltering;
109}
110
111void QSGSoftwarePainterNode::setMipmapping(bool mipmapping)
112{
113 if (mipmapping == m_mipmapping)
114 return;
115
116 m_mipmapping = mipmapping;
117}
118
119void QSGSoftwarePainterNode::setSmoothPainting(bool s)
120{
121 if (s == m_smoothPainting)
122 return;
123
124 m_smoothPainting = s;
125}
126
127void QSGSoftwarePainterNode::setFillColor(const QColor &c)
128{
129 if (c == m_fillColor)
130 return;
131
132 m_fillColor = c;
133 markDirty(bits: DirtyMaterial);
134}
135
136void QSGSoftwarePainterNode::setContentsScale(qreal s)
137{
138 if (s == m_contentsScale)
139 return;
140
141 m_contentsScale = s;
142 markDirty(bits: DirtyMaterial);
143}
144
145void QSGSoftwarePainterNode::setFastFBOResizing(bool dynamic)
146{
147 m_fastFBOResizing = dynamic;
148}
149
150QImage QSGSoftwarePainterNode::toImage() const
151{
152 return m_pixmap.toImage();
153}
154
155void QSGSoftwarePainterNode::update()
156{
157 if (m_dirtyGeometry) {
158 m_pixmap = QPixmap(m_textureSize);
159 if (!m_opaquePainting)
160 m_pixmap.fill(fillColor: Qt::transparent);
161
162 if (m_texture)
163 delete m_texture;
164 m_texture = new QSGSoftwarePixmapTexture(m_pixmap);
165 }
166
167 if (m_dirtyContents)
168 paint();
169
170 m_dirtyGeometry = false;
171 m_dirtyContents = false;
172}
173
174void QSGSoftwarePainterNode::paint(QPainter *painter)
175{
176 painter->drawPixmap(x: 0, y: 0, w: m_size.width(), h: m_size.height(), pm: m_pixmap);
177}
178
179void QSGSoftwarePainterNode::paint()
180{
181 QRect dirtyRect = m_dirtyRect.isNull() ? QRect(0, 0, m_size.width(), m_size.height()) : m_dirtyRect;
182
183 QPainter painter;
184
185 painter.begin(&m_pixmap);
186 if (m_smoothPainting) {
187 painter.setRenderHints(hints: QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::SmoothPixmapTransform);
188 }
189
190 QRect clipRect;
191
192 if (m_contentsScale == 1) {
193 qreal scaleX = m_textureSize.width() / (qreal) m_size.width();
194 qreal scaleY = m_textureSize.height() / (qreal) m_size.height();
195 painter.scale(sx: scaleX, sy: scaleY);
196 clipRect = dirtyRect;
197 } else {
198 painter.scale(sx: m_contentsScale, sy: m_contentsScale);
199
200 QRect sclip(qFloor(v: dirtyRect.x()/m_contentsScale),
201 qFloor(v: dirtyRect.y()/m_contentsScale),
202 qCeil(v: dirtyRect.width()/m_contentsScale+dirtyRect.x()/m_contentsScale-qFloor(v: dirtyRect.x()/m_contentsScale)),
203 qCeil(v: dirtyRect.height()/m_contentsScale+dirtyRect.y()/m_contentsScale-qFloor(v: dirtyRect.y()/m_contentsScale)));
204
205 clipRect = sclip;
206 }
207
208 if (!m_dirtyRect.isNull())
209 painter.setClipRect(clipRect);
210
211 painter.setCompositionMode(QPainter::CompositionMode_Source);
212 painter.fillRect(clipRect, color: m_fillColor);
213 painter.setCompositionMode(QPainter::CompositionMode_SourceOver);
214
215 m_item->paint(painter: &painter);
216 painter.end();
217
218 m_dirtyRect = QRect();
219}
220
221
222void QSGSoftwarePainterNode::setTextureSize(const QSize &size)
223{
224 if (size == m_textureSize)
225 return;
226
227 m_textureSize = size;
228 m_dirtyGeometry = true;
229}
230
231QT_END_NAMESPACE
232

source code of qtdeclarative/src/quick/scenegraph/adaptations/software/qsgsoftwarepainternode.cpp