qglpaintdevice.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 QtOpenGL 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-
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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-
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34** https://www.gnu.org/licenses/gpl-3.0.html.-
35**-
36** $QT_END_LICENSE$-
37**-
38****************************************************************************/-
39-
40#include <private/qglpaintdevice_p.h>-
41#include <private/qgl_p.h>-
42#include <private/qglpixelbuffer_p.h>-
43#include <private/qglframebufferobject_p.h>-
44#include <qopenglfunctions.h>-
45#include <qwindow.h>-
46-
47QT_BEGIN_NAMESPACE-
48-
49QGLPaintDevice::QGLPaintDevice()-
50 : m_thisFBO(0)-
51{-
52}
executed 12 times by 3 tests: end of block
Executed by:
  • tst_qglbuffer - unknown status
  • tst_qglfunctions - unknown status
  • tst_qmdiarea - unknown status
12
53-
54QGLPaintDevice::~QGLPaintDevice()-
55{-
56}-
57-
58int QGLPaintDevice::metric(QPaintDevice::PaintDeviceMetric metric) const-
59{-
60 switch(metric) {-
61 case PdmWidth:
never executed: case PdmWidth:
0
62 return size().width();
never executed: return size().width();
0
63 case PdmHeight:
never executed: case PdmHeight:
0
64 return size().height();
never executed: return size().height();
0
65 case PdmDepth: {
never executed: case PdmDepth:
0
66 const QGLFormat f = format();-
67 return f.redBufferSize() + f.greenBufferSize() + f.blueBufferSize() + f.alphaBufferSize();
never executed: return f.redBufferSize() + f.greenBufferSize() + f.blueBufferSize() + f.alphaBufferSize();
0
68 }-
69 case PdmDevicePixelRatio:
never executed: case PdmDevicePixelRatio:
0
70 return 1;
never executed: return 1;
0
71 case PdmDevicePixelRatioScaled:
never executed: case PdmDevicePixelRatioScaled:
0
72 return 1 * QPaintDevice::devicePixelRatioFScale();
never executed: return 1 * QPaintDevice::devicePixelRatioFScale();
0
73 default:
never executed: default:
0
74 qWarning("QGLPaintDevice::metric() - metric %d not known", metric);-
75 return 0;
never executed: return 0;
0
76 }-
77}-
78-
79void QGLPaintDevice::beginPaint()-
80{-
81 // Make sure our context is the current one:-
82 QGLContext *ctx = context();-
83 ctx->makeCurrent();-
84-
85 ctx->d_func()->refreshCurrentFbo();-
86-
87 // Record the currently bound FBO so we can restore it again-
88 // in endPaint() and bind this device's FBO-
89 //-
90 // Note: m_thisFBO could be zero if the paint device is not-
91 // backed by an FBO (e.g. window back buffer). But there could-
92 // be a previous FBO bound to the context which we need to-
93 // explicitly unbind. Otherwise the painting will go into-
94 // the previous FBO instead of to the window.-
95 m_previousFBO = ctx->d_func()->current_fbo;-
96-
97 if (m_previousFBO != m_thisFBO) {
m_previousFBO != m_thisFBODescription
TRUEnever evaluated
FALSEevaluated 3 times by 1 test
Evaluated by:
  • tst_qmdiarea - unknown status
0-3
98 ctx->d_func()->setCurrentFbo(m_thisFBO);-
99 ctx->contextHandle()->functions()->glBindFramebuffer(GL_FRAMEBUFFER, m_thisFBO);-
100 }
never executed: end of block
0
101-
102 // Set the default fbo for the context to m_thisFBO so that-
103 // if some raw GL code between beginNativePainting() and-
104 // endNativePainting() calls QGLFramebufferObject::release(),-
105 // painting will revert to the window surface's fbo.-
106 ctx->d_ptr->default_fbo = m_thisFBO;-
107}
executed 3 times by 1 test: end of block
Executed by:
  • tst_qmdiarea - unknown status
3
108-
109void QGLPaintDevice::ensureActiveTarget()-
110{-
111 QGLContext* ctx = context();-
112 if (ctx != QGLContext::currentContext())
ctx != QGLCont...rrentContext()Description
TRUEnever evaluated
FALSEevaluated 42 times by 1 test
Evaluated by:
  • tst_qmdiarea - unknown status
0-42
113 ctx->makeCurrent();
never executed: ctx->makeCurrent();
0
114-
115 ctx->d_func()->refreshCurrentFbo();-
116-
117 if (ctx->d_ptr->current_fbo != m_thisFBO) {
ctx->d_ptr->cu...o != m_thisFBODescription
TRUEnever evaluated
FALSEevaluated 42 times by 1 test
Evaluated by:
  • tst_qmdiarea - unknown status
0-42
118 ctx->d_func()->setCurrentFbo(m_thisFBO);-
119 ctx->contextHandle()->functions()->glBindFramebuffer(GL_FRAMEBUFFER, m_thisFBO);-
120 }
never executed: end of block
0
121-
122 ctx->d_ptr->default_fbo = m_thisFBO;-
123}
executed 42 times by 1 test: end of block
Executed by:
  • tst_qmdiarea - unknown status
42
124-
125void QGLPaintDevice::endPaint()-
126{-
127 // Make sure the FBO bound at beginPaint is re-bound again here:-
128 QGLContext *ctx = context();-
129-
130 ctx->d_func()->refreshCurrentFbo();-
131-
132 if (m_previousFBO != ctx->d_func()->current_fbo) {
m_previousFBO ...)->current_fboDescription
TRUEnever evaluated
FALSEevaluated 3 times by 1 test
Evaluated by:
  • tst_qmdiarea - unknown status
0-3
133 ctx->d_func()->setCurrentFbo(m_previousFBO);-
134 ctx->contextHandle()->functions()->glBindFramebuffer(GL_FRAMEBUFFER, m_previousFBO);-
135 }
never executed: end of block
0
136-
137 ctx->d_ptr->default_fbo = 0;-
138}
executed 3 times by 1 test: end of block
Executed by:
  • tst_qmdiarea - unknown status
3
139-
140QGLFormat QGLPaintDevice::format() const-
141{-
142 return context()->format();
never executed: return context()->format();
0
143}-
144-
145bool QGLPaintDevice::alphaRequested() const-
146{-
147 return context()->d_func()->reqFormat.alpha();
never executed: return context()->d_func()->reqFormat.alpha();
0
148}-
149-
150bool QGLPaintDevice::isFlipped() const-
151{-
152 return false;
executed 5 times by 1 test: return false;
Executed by:
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5
153}-
154-
155////////////////// QGLWidgetGLPaintDevice //////////////////-
156-
157QGLWidgetGLPaintDevice::QGLWidgetGLPaintDevice()-
158{-
159}-
160-
161QPaintEngine* QGLWidgetGLPaintDevice::paintEngine() const-
162{-
163 return glWidget->paintEngine();
never executed: return glWidget->paintEngine();
0
164}-
165-
166void QGLWidgetGLPaintDevice::setWidget(QGLWidget* w)-
167{-
168 glWidget = w;-
169}
executed 12 times by 3 tests: end of block
Executed by:
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  • tst_qglfunctions - unknown status
  • tst_qmdiarea - unknown status
12
170-
171void QGLWidgetGLPaintDevice::beginPaint()-
172{-
173 QGLPaintDevice::beginPaint();-
174 QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions();-
175 if (!glWidget->d_func()->disable_clear_on_painter_begin && glWidget->autoFillBackground()) {
!glWidget->d_f..._painter_beginDescription
TRUEevaluated 3 times by 1 test
Evaluated by:
  • tst_qmdiarea - unknown status
FALSEnever evaluated
glWidget->autoFillBackground()Description
TRUEevaluated 3 times by 1 test
Evaluated by:
  • tst_qmdiarea - unknown status
FALSEnever evaluated
0-3
176 if (glWidget->testAttribute(Qt::WA_TranslucentBackground))
glWidget->test...entBackground)Description
TRUEnever evaluated
FALSEevaluated 3 times by 1 test
Evaluated by:
  • tst_qmdiarea - unknown status
0-3
177 funcs->glClearColor(0.0, 0.0, 0.0, 0.0);
never executed: funcs->glClearColor(0.0, 0.0, 0.0, 0.0);
0
178 else {-
179 const QColor &c = glWidget->palette().brush(glWidget->backgroundRole()).color();-
180 float alpha = c.alphaF();-
181 funcs->glClearColor(c.redF() * alpha, c.greenF() * alpha, c.blueF() * alpha, alpha);-
182 }
executed 3 times by 1 test: end of block
Executed by:
  • tst_qmdiarea - unknown status
3
183 if (context()->d_func()->workaround_needsFullClearOnEveryFrame)
context()->d_f...arOnEveryFrameDescription
TRUEnever evaluated
FALSEevaluated 3 times by 1 test
Evaluated by:
  • tst_qmdiarea - unknown status
0-3
184 funcs->glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
never executed: funcs->glClear(0x00004000 | 0x00000100 | 0x00000400);
0
185 else-
186 funcs->glClear(GL_COLOR_BUFFER_BIT);
executed 3 times by 1 test: funcs->glClear(0x00004000);
Executed by:
  • tst_qmdiarea - unknown status
3
187 }-
188}
executed 3 times by 1 test: end of block
Executed by:
  • tst_qmdiarea - unknown status
3
189-
190void QGLWidgetGLPaintDevice::endPaint()-
191{-
192 if (glWidget->autoBufferSwap())
glWidget->autoBufferSwap()Description
TRUEevaluated 3 times by 1 test
Evaluated by:
  • tst_qmdiarea - unknown status
FALSEnever evaluated
0-3
193 glWidget->swapBuffers();
executed 3 times by 1 test: glWidget->swapBuffers();
Executed by:
  • tst_qmdiarea - unknown status
3
194 QGLPaintDevice::endPaint();-
195}
executed 3 times by 1 test: end of block
Executed by:
  • tst_qmdiarea - unknown status
3
196-
197-
198QSize QGLWidgetGLPaintDevice::size() const-
199{-
200#ifdef Q_OS_MAC-
201 return glWidget->size() * (glWidget->windowHandle() ?-
202 glWidget->windowHandle()->devicePixelRatio() : qApp->devicePixelRatio());-
203#else-
204 return glWidget->size();
executed 3 times by 1 test: return glWidget->size();
Executed by:
  • tst_qmdiarea - unknown status
3
205#endif-
206}-
207-
208QGLContext* QGLWidgetGLPaintDevice::context() const-
209{-
210 return const_cast<QGLContext*>(glWidget->context());
executed 54 times by 1 test: return const_cast<QGLContext*>(glWidget->context());
Executed by:
  • tst_qmdiarea - unknown status
54
211}-
212-
213// returns the QGLPaintDevice for the given QPaintDevice-
214QGLPaintDevice* QGLPaintDevice::getDevice(QPaintDevice* pd)-
215{-
216 QGLPaintDevice* glpd = 0;-
217-
218 switch(pd->devType()) {-
219 case QInternal::Widget:
executed 3 times by 1 test: case QInternal::Widget:
Executed by:
  • tst_qmdiarea - unknown status
3
220 // Should not be called on a non-gl widget:-
221 Q_ASSERT(qobject_cast<QGLWidget*>(static_cast<QWidget*>(pd)));-
222 glpd = &(static_cast<QGLWidget*>(pd)->d_func()->glDevice);-
223 break;
executed 3 times by 1 test: break;
Executed by:
  • tst_qmdiarea - unknown status
3
224 case QInternal::Pbuffer:
never executed: case QInternal::Pbuffer:
0
225 glpd = &(static_cast<QGLPixelBuffer*>(pd)->d_func()->glDevice);-
226 break;
never executed: break;
0
227 case QInternal::FramebufferObject:
never executed: case QInternal::FramebufferObject:
0
228 glpd = &(static_cast<QGLFramebufferObject*>(pd)->d_func()->glDevice);-
229 break;
never executed: break;
0
230 case QInternal::Pixmap: {
never executed: case QInternal::Pixmap:
0
231 qWarning("Pixmap type not supported for GL rendering");-
232 break;
never executed: break;
0
233 }-
234 default:
never executed: default:
0
235 qWarning("QGLPaintDevice::getDevice() - Unknown device type %d", pd->devType());-
236 break;
never executed: break;
0
237 }-
238-
239 return glpd;
executed 3 times by 1 test: return glpd;
Executed by:
  • tst_qmdiarea - unknown status
3
240}-
241-
242QT_END_NAMESPACE-
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