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qsgsoftwarelayer.cpp

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1/****************************************************************************-
2**-
3** Copyright (C) 2016 The Qt Company Ltd.-
4** Contact: https://www.qt.io/licensing/-
5**-
6** This file is part of the QtQuick module of the Qt Toolkit.-
7**-
8** $QT_BEGIN_LICENSE:LGPL$-
9** Commercial License Usage-
10** Licensees holding valid commercial Qt licenses may use this file in-
11** accordance with the commercial license agreement provided with the-
12** Software or, alternatively, in accordance with the terms contained in-
13** a written agreement between you and The Qt Company. For licensing terms-
14** and conditions see https://www.qt.io/terms-conditions. For further-
15** information use the contact form at https://www.qt.io/contact-us.-
16**-
17** GNU Lesser General Public License Usage-
18** Alternatively, this file may be used under the terms of the GNU Lesser-
19** General Public License version 3 as published by the Free Software-
20** Foundation and appearing in the file LICENSE.LGPL3 included in the-
21** packaging of this file. Please review the following information to-
22** ensure the GNU Lesser General Public License version 3 requirements-
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.-
24**-
25** GNU General Public License Usage-
26** Alternatively, this file may be used under the terms of the GNU-
27** General Public License version 2.0 or (at your option) the GNU General-
28** Public license version 3 or any later version approved by the KDE Free-
29** Qt Foundation. The licenses are as published by the Free Software-
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3-
31** included in the packaging of this file. Please review the following-
32** information to ensure the GNU General Public License requirements will-
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and-
34** https://www.gnu.org/licenses/gpl-3.0.html.-
35**-
36** $QT_END_LICENSE$-
37**-
38****************************************************************************/-
39-
40#include "qsgsoftwarelayer_p.h"-
41-
42#include "qsgsoftwarecontext_p.h"-
43#include "qsgsoftwarepixmaprenderer_p.h"-
44-
45QT_BEGIN_NAMESPACE-
46-
47QSGSoftwareLayer::QSGSoftwareLayer(QSGRenderContext *renderContext)-
48 : m_item(nullptr)-
49 , m_context(renderContext)-
50 , m_renderer(nullptr)-
51 , m_device_pixel_ratio(1)-
52 , m_mirrorHorizontal(false)-
53 , m_mirrorVertical(true)-
54 , m_live(true)-
55 , m_grab(true)-
56 , m_recursive(false)-
57 , m_dirtyTexture(true)-
58{-
59-
60}
never executed: end of block
0
61-
62QSGSoftwareLayer::~QSGSoftwareLayer()-
63{-
64 invalidated();-
65}
never executed: end of block
0
66-
67int QSGSoftwareLayer::textureId() const-
68{-
69 return 0;
never executed: return 0;
0
70}-
71-
72QSize QSGSoftwareLayer::textureSize() const-
73{-
74 return m_pixmap.size();
never executed: return m_pixmap.size();
0
75}-
76-
77bool QSGSoftwareLayer::hasAlphaChannel() const-
78{-
79 return m_pixmap.hasAlphaChannel();
never executed: return m_pixmap.hasAlphaChannel();
0
80}-
81-
82bool QSGSoftwareLayer::hasMipmaps() const-
83{-
84 return false;
never executed: return false;
0
85}-
86-
87void QSGSoftwareLayer::bind()-
88{-
89}-
90-
91bool QSGSoftwareLayer::updateTexture()-
92{-
93 bool doGrab = (m_live || m_grab) && m_dirtyTexture;
m_liveDescription
TRUEnever evaluated
FALSEnever evaluated
m_grabDescription
TRUEnever evaluated
FALSEnever evaluated
m_dirtyTextureDescription
TRUEnever evaluated
FALSEnever evaluated
0
94 if (doGrab)
doGrabDescription
TRUEnever evaluated
FALSEnever evaluated
0
95 grab();
never executed: grab();
0
96 if (m_grab)
m_grabDescription
TRUEnever evaluated
FALSEnever evaluated
0
97 emit scheduledUpdateCompleted();
never executed: scheduledUpdateCompleted();
0
98 m_grab = false;-
99 return doGrab;
never executed: return doGrab;
0
100}-
101-
102void QSGSoftwareLayer::setItem(QSGNode *item)-
103{-
104 if (item == m_item)
item == m_itemDescription
TRUEnever evaluated
FALSEnever evaluated
0
105 return;
never executed: return;
0
106 m_item = item;-
107-
108 if (m_live && !m_item)
m_liveDescription
TRUEnever evaluated
FALSEnever evaluated
!m_itemDescription
TRUEnever evaluated
FALSEnever evaluated
0
109 m_pixmap = QPixmap();
never executed: m_pixmap = QPixmap();
0
110-
111 markDirtyTexture();-
112}
never executed: end of block
0
113-
114void QSGSoftwareLayer::setRect(const QRectF &rect)-
115{-
116 if (rect == m_rect)
rect == m_rectDescription
TRUEnever evaluated
FALSEnever evaluated
0
117 return;
never executed: return;
0
118 m_rect = rect;-
119 markDirtyTexture();-
120}
never executed: end of block
0
121-
122void QSGSoftwareLayer::setSize(const QSize &size)-
123{-
124 if (size == m_size)
size == m_sizeDescription
TRUEnever evaluated
FALSEnever evaluated
0
125 return;
never executed: return;
0
126 m_size = size;-
127-
128 if (m_live && m_size.isNull())
m_liveDescription
TRUEnever evaluated
FALSEnever evaluated
m_size.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
0
129 m_pixmap = QPixmap();
never executed: m_pixmap = QPixmap();
0
130-
131 markDirtyTexture();-
132}
never executed: end of block
0
133-
134void QSGSoftwareLayer::scheduleUpdate()-
135{-
136 if (m_grab)
m_grabDescription
TRUEnever evaluated
FALSEnever evaluated
0
137 return;
never executed: return;
0
138 m_grab = true;-
139 if (m_dirtyTexture) {
m_dirtyTextureDescription
TRUEnever evaluated
FALSEnever evaluated
0
140 emit updateRequested();-
141 }
never executed: end of block
0
142}
never executed: end of block
0
143-
144QImage QSGSoftwareLayer::toImage() const-
145{-
146 return m_pixmap.toImage();
never executed: return m_pixmap.toImage();
0
147}-
148-
149void QSGSoftwareLayer::setLive(bool live)-
150{-
151 if (live == m_live)
live == m_liveDescription
TRUEnever evaluated
FALSEnever evaluated
0
152 return;
never executed: return;
0
153 m_live = live;-
154-
155 if (m_live && (!m_item || m_size.isNull()))
m_liveDescription
TRUEnever evaluated
FALSEnever evaluated
!m_itemDescription
TRUEnever evaluated
FALSEnever evaluated
m_size.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
0
156 m_pixmap = QPixmap();
never executed: m_pixmap = QPixmap();
0
157-
158 markDirtyTexture();-
159}
never executed: end of block
0
160-
161void QSGSoftwareLayer::setRecursive(bool recursive)-
162{-
163 m_recursive = recursive;-
164}
never executed: end of block
0
165-
166void QSGSoftwareLayer::setFormat(uint)-
167{-
168}-
169-
170void QSGSoftwareLayer::setHasMipmaps(bool)-
171{-
172}-
173-
174void QSGSoftwareLayer::setDevicePixelRatio(qreal ratio)-
175{-
176 m_device_pixel_ratio = ratio;-
177}
never executed: end of block
0
178-
179void QSGSoftwareLayer::setMirrorHorizontal(bool mirror)-
180{-
181 if (m_mirrorHorizontal == mirror)
m_mirrorHorizontal == mirrorDescription
TRUEnever evaluated
FALSEnever evaluated
0
182 return;
never executed: return;
0
183 m_mirrorHorizontal = mirror;-
184 markDirtyTexture();-
185}
never executed: end of block
0
186-
187void QSGSoftwareLayer::setMirrorVertical(bool mirror)-
188{-
189 if (m_mirrorVertical == mirror)
m_mirrorVertical == mirrorDescription
TRUEnever evaluated
FALSEnever evaluated
0
190 return;
never executed: return;
0
191 m_mirrorVertical = mirror;-
192 markDirtyTexture();-
193}
never executed: end of block
0
194-
195void QSGSoftwareLayer::markDirtyTexture()-
196{-
197 m_dirtyTexture = true;-
198 if (m_live || m_grab) {
m_liveDescription
TRUEnever evaluated
FALSEnever evaluated
m_grabDescription
TRUEnever evaluated
FALSEnever evaluated
0
199 emit updateRequested();-
200 }
never executed: end of block
0
201}
never executed: end of block
0
202-
203void QSGSoftwareLayer::invalidated()-
204{-
205 delete m_renderer;-
206 m_renderer = nullptr;-
207}
never executed: end of block
0
208-
209void QSGSoftwareLayer::grab()-
210{-
211 if (!m_item || m_size.isNull()) {
!m_itemDescription
TRUEnever evaluated
FALSEnever evaluated
m_size.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
0
212 m_pixmap = QPixmap();-
213 m_dirtyTexture = false;-
214 return;
never executed: return;
0
215 }-
216 QSGNode *root = m_item;-
217 while (root->firstChild() && root->type() != QSGNode::RootNodeType)
root->firstChild()Description
TRUEnever evaluated
FALSEnever evaluated
root->type() !...::RootNodeTypeDescription
TRUEnever evaluated
FALSEnever evaluated
0
218 root = root->firstChild();
never executed: root = root->firstChild();
0
219 if (root->type() != QSGNode::RootNodeType)
root->type() !...::RootNodeTypeDescription
TRUEnever evaluated
FALSEnever evaluated
0
220 return;
never executed: return;
0
221-
222 if (!m_renderer) {
!m_rendererDescription
TRUEnever evaluated
FALSEnever evaluated
0
223 m_renderer = new QSGSoftwarePixmapRenderer(m_context);-
224 connect(m_renderer, SIGNAL(sceneGraphChanged()), this, SLOT(markDirtyTexture()));-
225 }
never executed: end of block
0
226 m_renderer->setDevicePixelRatio(m_device_pixel_ratio);-
227 m_renderer->setRootNode(static_cast<QSGRootNode *>(root));-
228-
229 if (m_pixmap.size() != m_size) {
m_pixmap.size() != m_sizeDescription
TRUEnever evaluated
FALSEnever evaluated
0
230 m_pixmap = QPixmap(m_size);-
231 m_pixmap.setDevicePixelRatio(m_device_pixel_ratio);-
232 }
never executed: end of block
0
233-
234 // Render texture.-
235 root->markDirty(QSGNode::DirtyForceUpdate); // Force matrix, clip and opacity update.-
236 m_renderer->nodeChanged(root, QSGNode::DirtyForceUpdate); // Force render list update.-
237-
238 m_dirtyTexture = false;-
239-
240 m_renderer->setDeviceRect(m_size);-
241 m_renderer->setViewportRect(m_size);-
242 QRect mirrored(m_mirrorHorizontal ? m_rect.right() * m_device_pixel_ratio : m_rect.left() * m_device_pixel_ratio,-
243 m_mirrorVertical ? m_rect.bottom() * m_device_pixel_ratio : m_rect.top() * m_device_pixel_ratio,-
244 m_mirrorHorizontal ? -m_rect.width() * m_device_pixel_ratio : m_rect.width() * m_device_pixel_ratio,-
245 m_mirrorVertical ? -m_rect.height() * m_device_pixel_ratio : m_rect.height() * m_device_pixel_ratio);-
246 m_renderer->setProjectionRect(mirrored);-
247 m_renderer->setClearColor(Qt::transparent);-
248-
249 m_renderer->renderScene();-
250 m_renderer->render(&m_pixmap);-
251-
252 root->markDirty(QSGNode::DirtyForceUpdate); // Force matrix, clip, opacity and render list update.-
253-
254 if (m_recursive)
m_recursiveDescription
TRUEnever evaluated
FALSEnever evaluated
0
255 markDirtyTexture(); // Continuously update if 'live' and 'recursive'.
never executed: markDirtyTexture();
0
256}
never executed: end of block
0
257-
258QT_END_NAMESPACE-
259-
260#include "moc_qsgsoftwarelayer_p.cpp"-
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