qglpixelbuffer.cpp

Source codeSwitch to Preprocessed file
LineSource CodeCoverage
1/**************************************************************************** -
2** -
3** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). -
4** Contact: http://www.qt-project.org/legal -
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 -
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 Digia. For licensing terms and -
14** conditions see http://qt.digia.com/licensing. For further information -
15** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software -
20** Foundation and appearing in the file LICENSE.LGPL included in the -
21** packaging of this file. Please review the following information to -
22** ensure the GNU Lesser General Public License version 2.1 requirements -
23** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -
24** -
25** In addition, as a special exception, Digia gives you certain additional -
26** rights. These rights are described in the Digia Qt LGPL Exception -
27** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -
28** -
29** GNU General Public License Usage -
30** Alternatively, this file may be used under the terms of the GNU -
31** General Public License version 3.0 as published by the Free Software -
32** Foundation and appearing in the file LICENSE.GPL included in the -
33** packaging of this file. Please review the following information to -
34** ensure the GNU General Public License version 3.0 requirements will be -
35** met: http://www.gnu.org/copyleft/gpl.html. -
36** -
37** -
38** $QT_END_LICENSE$ -
39** -
40****************************************************************************/ -
41 -
42/*! -
43 \class QGLPixelBuffer -
44 \inmodule QtOpenGL -
45 \brief The QGLPixelBuffer class encapsulates an OpenGL pbuffer. -
46 \since 4.1 -
47 \obsolete -
48 -
49 \ingroup painting-3D -
50 -
51 Rendering into a pbuffer is normally done using full hardware -
52 acceleration. This can be significantly faster than rendering -
53 into a QPixmap. -
54 -
55 There are three approaches to using this class: -
56 -
57 \list 1 -
58 \li \b{We can draw into the pbuffer and convert it to a QImage -
59 using toImage().} This is normally much faster than calling -
60 QGLWidget::renderPixmap(). -
61 -
62 \li \b{We can draw into the pbuffer and copy the contents into -
63 an OpenGL texture using updateDynamicTexture().} This allows -
64 us to create dynamic textures and works on all systems -
65 with pbuffer support. -
66 -
67 \li \b{On systems that support it, we can bind the pbuffer to -
68 an OpenGL texture.} The texture is then updated automatically -
69 when the pbuffer contents change, eliminating the need for -
70 additional copy operations. This is supported only on Windows -
71 and Mac OS X systems that provide the \c render_texture -
72 extension. Note that under Windows, a multi-sampled pbuffer -
73 can't be used in conjunction with the \c render_texture -
74 extension. If a multi-sampled pbuffer is requested under -
75 Windows, the \c render_texture extension is turned off for that -
76 pbuffer. -
77 -
78 -
79 \endlist -
80 -
81 \note This class has been deprecated, use QOpenGLFramebufferObject -
82 for offscreen rendering. -
83 -
84 \section1 Threading -
85 -
86 As of Qt 4.8, it's possible to render into a QGLPixelBuffer using -
87 a QPainter in a separate thread. Note that OpenGL 2.0 or OpenGL ES -
88 2.0 is required for this to work. -
89 -
90 Pbuffers are provided by the OpenGL \c pbuffer extension; call -
91 hasOpenGLPbuffer() to find out if the system provides pbuffers. -
92 -
93 \sa {opengl/pbuffers}{Pbuffers Example} -
94*/ -
95 -
96#include <private/qopenglextensions_p.h> -
97 -
98#include <QtCore/qglobal.h> -
99#include <QtGui/qopenglframebufferobject.h> -
100 -
101#include "gl2paintengineex/qpaintengineex_opengl2_p.h" -
102 -
103#include <qglframebufferobject.h> -
104#include <qglpixelbuffer.h> -
105#include <private/qglpixelbuffer_p.h> -
106#include <private/qfont_p.h> -
107#include <qimage.h> -
108 -
109QT_BEGIN_NAMESPACE -
110 -
111extern QImage qt_gl_read_frame_buffer(const QSize&, bool, bool); -
112 -
113 -
114QGLContext* QGLPBufferGLPaintDevice::context() const -
115{ -
116 return pbuf->d_func()->qctx;
never executed: return pbuf->d_func()->qctx;
0
117} -
118 -
119void QGLPBufferGLPaintDevice::beginPaint() -
120{ -
121 pbuf->makeCurrent();
never executed (the execution status of this line is deduced): pbuf->makeCurrent();
-
122 QGLPaintDevice::beginPaint();
never executed (the execution status of this line is deduced): QGLPaintDevice::beginPaint();
-
123}
never executed: }
0
124 -
125void QGLPBufferGLPaintDevice::endPaint() -
126{ -
127 glFlush();
never executed (the execution status of this line is deduced): glFlush();
-
128 QGLPaintDevice::endPaint();
never executed (the execution status of this line is deduced): QGLPaintDevice::endPaint();
-
129}
never executed: }
0
130 -
131void QGLPBufferGLPaintDevice::setFbo(GLuint fbo) -
132{ -
133 m_thisFBO = fbo;
never executed (the execution status of this line is deduced): m_thisFBO = fbo;
-
134}
never executed: }
0
135 -
136void QGLPBufferGLPaintDevice::setPBuffer(QGLPixelBuffer* pb) -
137{ -
138 pbuf = pb;
never executed (the execution status of this line is deduced): pbuf = pb;
-
139}
never executed: }
0
140 -
141void QGLPixelBufferPrivate::common_init(const QSize &size, const QGLFormat &format, QGLWidget *shareWidget) -
142{ -
143 Q_Q(QGLPixelBuffer);
never executed (the execution status of this line is deduced): QGLPixelBuffer * const q = q_func();
-
144 if(init(size, format, shareWidget)) {
never evaluated: init(size, format, shareWidget)
0
145 req_size = size;
never executed (the execution status of this line is deduced): req_size = size;
-
146 req_format = format;
never executed (the execution status of this line is deduced): req_format = format;
-
147 req_shareWidget = shareWidget;
never executed (the execution status of this line is deduced): req_shareWidget = shareWidget;
-
148 invalid = false;
never executed (the execution status of this line is deduced): invalid = false;
-
149 glDevice.setPBuffer(q);
never executed (the execution status of this line is deduced): glDevice.setPBuffer(q);
-
150 }
never executed: }
0
151}
never executed: }
0
152 -
153/*! -
154 Constructs an OpenGL pbuffer of the given \a size. If no \a -
155 format is specified, the \l{QGLFormat::defaultFormat()}{default -
156 format} is used. If the \a shareWidget parameter points to a -
157 valid QGLWidget, the pbuffer will share its context with \a -
158 shareWidget. -
159 -
160 If you intend to bind this pbuffer as a dynamic texture, the width -
161 and height components of \c size must be powers of two (e.g., 512 -
162 x 128). -
163 -
164 \sa size(), format() -
165*/ -
166QGLPixelBuffer::QGLPixelBuffer(const QSize &size, const QGLFormat &format, QGLWidget *shareWidget) -
167 : d_ptr(new QGLPixelBufferPrivate(this)) -
168{ -
169 Q_D(QGLPixelBuffer);
never executed (the execution status of this line is deduced): QGLPixelBufferPrivate * const d = d_func();
-
170 d->common_init(size, format, shareWidget);
never executed (the execution status of this line is deduced): d->common_init(size, format, shareWidget);
-
171}
never executed: }
0
172 -
173 -
174/*! \overload -
175 -
176 Constructs an OpenGL pbuffer with the \a width and \a height. If -
177 no \a format is specified, the -
178 \l{QGLFormat::defaultFormat()}{default format} is used. If the \a -
179 shareWidget parameter points to a valid QGLWidget, the pbuffer -
180 will share its context with \a shareWidget. -
181 -
182 If you intend to bind this pbuffer as a dynamic texture, the width -
183 and height components of \c size must be powers of two (e.g., 512 -
184 x 128). -
185 -
186 \sa size(), format() -
187*/ -
188QGLPixelBuffer::QGLPixelBuffer(int width, int height, const QGLFormat &format, QGLWidget *shareWidget) -
189 : d_ptr(new QGLPixelBufferPrivate(this)) -
190{ -
191 Q_D(QGLPixelBuffer);
never executed (the execution status of this line is deduced): QGLPixelBufferPrivate * const d = d_func();
-
192 d->common_init(QSize(width, height), format, shareWidget);
never executed (the execution status of this line is deduced): d->common_init(QSize(width, height), format, shareWidget);
-
193}
never executed: }
0
194 -
195 -
196/*! \fn QGLPixelBuffer::~QGLPixelBuffer() -
197 -
198 Destroys the pbuffer and frees any allocated resources. -
199*/ -
200QGLPixelBuffer::~QGLPixelBuffer() -
201{ -
202 Q_D(QGLPixelBuffer);
never executed (the execution status of this line is deduced): QGLPixelBufferPrivate * const d = d_func();
-
203 -
204 // defined in qpaintengine_opengl.cpp -
205 QGLContext *current = const_cast<QGLContext *>(QGLContext::currentContext());
never executed (the execution status of this line is deduced): QGLContext *current = const_cast<QGLContext *>(QGLContext::currentContext());
-
206 if (current != d->qctx)
never evaluated: current != d->qctx
0
207 makeCurrent();
never executed: makeCurrent();
0
208 d->cleanup();
never executed (the execution status of this line is deduced): d->cleanup();
-
209 if (current && current != d->qctx)
never evaluated: current
never evaluated: current != d->qctx
0
210 current->makeCurrent();
never executed: current->makeCurrent();
0
211}
never executed: }
0
212 -
213/*! \fn bool QGLPixelBuffer::makeCurrent() -
214 -
215 Makes this pbuffer the current OpenGL rendering context. Returns -
216 true on success; otherwise returns false. -
217 -
218 \sa QGLContext::makeCurrent(), doneCurrent() -
219*/ -
220 -
221bool QGLPixelBuffer::makeCurrent() -
222{ -
223 Q_D(QGLPixelBuffer);
never executed (the execution status of this line is deduced): QGLPixelBufferPrivate * const d = d_func();
-
224 if (d->invalid)
never evaluated: d->invalid
0
225 return false;
never executed: return false;
0
226 d->qctx->makeCurrent();
never executed (the execution status of this line is deduced): d->qctx->makeCurrent();
-
227 if (!d->fbo) {
never evaluated: !d->fbo
0
228 QOpenGLFramebufferObjectFormat format;
never executed (the execution status of this line is deduced): QOpenGLFramebufferObjectFormat format;
-
229 if (d->req_format.stencil())
never evaluated: d->req_format.stencil()
0
230 format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
never executed: format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
0
231 else if (d->req_format.depth())
never evaluated: d->req_format.depth()
0
232 format.setAttachment(QOpenGLFramebufferObject::Depth);
never executed: format.setAttachment(QOpenGLFramebufferObject::Depth);
0
233 if (d->req_format.sampleBuffers())
never evaluated: d->req_format.sampleBuffers()
0
234 format.setSamples(d->req_format.samples());
never executed: format.setSamples(d->req_format.samples());
0
235 d->fbo = new QOpenGLFramebufferObject(d->req_size, format);
never executed (the execution status of this line is deduced): d->fbo = new QOpenGLFramebufferObject(d->req_size, format);
-
236 d->fbo->bind();
never executed (the execution status of this line is deduced): d->fbo->bind();
-
237 d->glDevice.setFbo(d->fbo->handle());
never executed (the execution status of this line is deduced): d->glDevice.setFbo(d->fbo->handle());
-
238 glViewport(0, 0, d->req_size.width(), d->req_size.height());
never executed (the execution status of this line is deduced): glViewport(0, 0, d->req_size.width(), d->req_size.height());
-
239 }
never executed: }
0
240 return true;
never executed: return true;
0
241} -
242 -
243/*! \fn bool QGLPixelBuffer::doneCurrent() -
244 -
245 Makes no context the current OpenGL context. Returns true on -
246 success; otherwise returns false. -
247*/ -
248 -
249bool QGLPixelBuffer::doneCurrent() -
250{ -
251 Q_D(QGLPixelBuffer);
never executed (the execution status of this line is deduced): QGLPixelBufferPrivate * const d = d_func();
-
252 if (d->invalid)
never evaluated: d->invalid
0
253 return false;
never executed: return false;
0
254 d->qctx->doneCurrent();
never executed (the execution status of this line is deduced): d->qctx->doneCurrent();
-
255 return true;
never executed: return true;
0
256} -
257 -
258/*! -
259 Returns the context of this pixelbuffer. -
260*/ -
261QGLContext *QGLPixelBuffer::context() const -
262{ -
263 Q_D(const QGLPixelBuffer);
never executed (the execution status of this line is deduced): const QGLPixelBufferPrivate * const d = d_func();
-
264 return d->qctx;
never executed: return d->qctx;
0
265} -
266 -
267/*! -
268 \fn GLuint QGLPixelBuffer::generateDynamicTexture() const -
269 -
270 Generates and binds a 2D GL texture that is the same size as the -
271 pbuffer, and returns the texture's ID. This can be used in -
272 conjunction with bindToDynamicTexture() and -
273 updateDynamicTexture(). -
274 -
275 \sa size() -
276*/ -
277 -
278/*! \fn bool QGLPixelBuffer::bindToDynamicTexture(GLuint texture_id) -
279 -
280 Binds the texture specified by \a texture_id to this pbuffer. -
281 Returns true on success; otherwise returns false. -
282 -
283 The texture must be of the same size and format as the pbuffer. -
284 -
285 To unbind the texture, call releaseFromDynamicTexture(). While -
286 the texture is bound, it is updated automatically when the -
287 pbuffer contents change, eliminating the need for additional copy -
288 operations. -
289 -
290 Example: -
291 -
292 \snippet code/src_opengl_qglpixelbuffer.cpp 0 -
293 -
294 \warning This function uses the \c {render_texture} extension, -
295 which is currently not supported under X11. An alternative that -
296 works on all systems (including X11) is to manually copy the -
297 pbuffer contents to a texture using updateDynamicTexture(). -
298 -
299 \warning For the bindToDynamicTexture() call to succeed on the -
300 Mac OS X, the pbuffer needs a shared context, i.e. the -
301 QGLPixelBuffer must be created with a share widget. -
302 -
303 \sa generateDynamicTexture(), releaseFromDynamicTexture() -
304*/ -
305 -
306/*! \fn void QGLPixelBuffer::releaseFromDynamicTexture() -
307 -
308 Releases the pbuffer from any previously bound texture. -
309 -
310 \sa bindToDynamicTexture() -
311*/ -
312 -
313/*! \fn bool QGLPixelBuffer::hasOpenGLPbuffers() -
314 -
315 Returns true if the OpenGL \c pbuffer extension is present on -
316 this system; otherwise returns false. -
317*/ -
318 -
319/*! -
320 Copies the pbuffer contents into the texture specified with \a -
321 texture_id. -
322 -
323 The texture must be of the same size and format as the pbuffer. -
324 -
325 Example: -
326 -
327 \snippet code/src_opengl_qglpixelbuffer.cpp 1 -
328 -
329 An alternative on Windows and Mac OS X systems that support the -
330 \c render_texture extension is to use bindToDynamicTexture() to -
331 get dynamic updates of the texture. -
332 -
333 \sa generateDynamicTexture(), bindToDynamicTexture() -
334*/ -
335void QGLPixelBuffer::updateDynamicTexture(GLuint texture_id) const -
336{ -
337 Q_D(const QGLPixelBuffer);
never executed (the execution status of this line is deduced): const QGLPixelBufferPrivate * const d = d_func();
-
338 if (d->invalid || !d->fbo)
never evaluated: d->invalid
never evaluated: !d->fbo
0
339 return;
never executed: return;
0
340 -
341 QOpenGLContext *ctx = QOpenGLContext::currentContext();
never executed (the execution status of this line is deduced): QOpenGLContext *ctx = QOpenGLContext::currentContext();
-
342 if (!ctx)
never evaluated: !ctx
0
343 return;
never executed: return;
0
344 -
345#undef glBindFramebuffer -
346 -
347#ifndef GL_READ_FRAMEBUFFER -
348#define GL_READ_FRAMEBUFFER 0x8CA8 -
349#endif -
350 -
351#ifndef GL_DRAW_FRAMEBUFFER -
352#define GL_DRAW_FRAMEBUFFER 0x8CA9 -
353#endif -
354 -
355 QOpenGLExtensions extensions(ctx);
never executed (the execution status of this line is deduced): QOpenGLExtensions extensions(ctx);
-
356 -
357 if (d->blit_fbo) {
never evaluated: d->blit_fbo
0
358 QOpenGLFramebufferObject::blitFramebuffer(d->blit_fbo, d->fbo);
never executed (the execution status of this line is deduced): QOpenGLFramebufferObject::blitFramebuffer(d->blit_fbo, d->fbo);
-
359 extensions.glBindFramebuffer(GL_READ_FRAMEBUFFER, d->blit_fbo->handle());
never executed (the execution status of this line is deduced): extensions.glBindFramebuffer(0x8CA8, d->blit_fbo->handle());
-
360 }
never executed: }
0
361 -
362 glBindTexture(GL_TEXTURE_2D, texture_id);
never executed (the execution status of this line is deduced): glBindTexture(0x0DE1, texture_id);
-
363#ifndef QT_OPENGL_ES -
364 glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, 0, 0, d->req_size.width(), d->req_size.height(), 0);
never executed (the execution status of this line is deduced): glCopyTexImage2D(0x0DE1, 0, 0x8058, 0, 0, d->req_size.width(), d->req_size.height(), 0);
-
365#else -
366 glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 0, 0, d->req_size.width(), d->req_size.height(), 0); -
367#endif -
368 -
369 if (d->blit_fbo)
never evaluated: d->blit_fbo
0
370 extensions.glBindFramebuffer(GL_READ_FRAMEBUFFER, ctx->d_func()->current_fbo);
never executed: extensions.glBindFramebuffer(0x8CA8, ctx->d_func()->current_fbo);
0
371}
never executed: }
0
372 -
373/*! -
374 Returns the size of the pbuffer. -
375*/ -
376QSize QGLPixelBuffer::size() const -
377{ -
378 Q_D(const QGLPixelBuffer);
never executed (the execution status of this line is deduced): const QGLPixelBufferPrivate * const d = d_func();
-
379 return d->req_size;
never executed: return d->req_size;
0
380} -
381 -
382/*! -
383 Returns the contents of the pbuffer as a QImage. -
384*/ -
385QImage QGLPixelBuffer::toImage() const -
386{ -
387 Q_D(const QGLPixelBuffer);
never executed (the execution status of this line is deduced): const QGLPixelBufferPrivate * const d = d_func();
-
388 if (d->invalid)
never evaluated: d->invalid
0
389 return QImage();
never executed: return QImage();
0
390 -
391 const_cast<QGLPixelBuffer *>(this)->makeCurrent();
never executed (the execution status of this line is deduced): const_cast<QGLPixelBuffer *>(this)->makeCurrent();
-
392 if (d->fbo)
never evaluated: d->fbo
0
393 d->fbo->bind();
never executed: d->fbo->bind();
0
394 return qt_gl_read_frame_buffer(d->req_size, d->format.alpha(), true);
never executed: return qt_gl_read_frame_buffer(d->req_size, d->format.alpha(), true);
0
395} -
396 -
397/*! -
398 Returns the native pbuffer handle. -
399*/ -
400Qt::HANDLE QGLPixelBuffer::handle() const -
401{ -
402 Q_D(const QGLPixelBuffer);
never executed (the execution status of this line is deduced): const QGLPixelBufferPrivate * const d = d_func();
-
403 if (d->invalid)
never evaluated: d->invalid
0
404 return 0;
never executed: return 0;
0
405 return (Qt::HANDLE) d->pbuf;
never executed: return (Qt::HANDLE) d->pbuf;
0
406} -
407 -
408/*! -
409 Returns true if this pbuffer is valid; otherwise returns false. -
410*/ -
411bool QGLPixelBuffer::isValid() const -
412{ -
413 Q_D(const QGLPixelBuffer);
never executed (the execution status of this line is deduced): const QGLPixelBufferPrivate * const d = d_func();
-
414 return !d->invalid;
never executed: return !d->invalid;
0
415} -
416 -
417Q_GLOBAL_STATIC(QGLEngineThreadStorage<QGL2PaintEngineEx>, qt_buffer_2_engine)
never executed: delete x;
never executed: return thisGlobalStatic.pointer.load();
never evaluated: !thisGlobalStatic.pointer.testAndSetOrdered(0, x)
never evaluated: !thisGlobalStatic.pointer.load()
never evaluated: !thisGlobalStatic.destroyed
0
418 -
419/*! \reimp */ -
420QPaintEngine *QGLPixelBuffer::paintEngine() const -
421{ -
422 return qt_buffer_2_engine()->engine();
never executed: return qt_buffer_2_engine()->engine();
0
423} -
424 -
425/*! \reimp */ -
426int QGLPixelBuffer::metric(PaintDeviceMetric metric) const -
427{ -
428 Q_D(const QGLPixelBuffer);
never executed (the execution status of this line is deduced): const QGLPixelBufferPrivate * const d = d_func();
-
429 -
430 float dpmx = qt_defaultDpiX()*100./2.54;
never executed (the execution status of this line is deduced): float dpmx = qt_defaultDpiX()*100./2.54;
-
431 float dpmy = qt_defaultDpiY()*100./2.54;
never executed (the execution status of this line is deduced): float dpmy = qt_defaultDpiY()*100./2.54;
-
432 int w = d->req_size.width();
never executed (the execution status of this line is deduced): int w = d->req_size.width();
-
433 int h = d->req_size.height();
never executed (the execution status of this line is deduced): int h = d->req_size.height();
-
434 switch (metric) { -
435 case PdmWidth: -
436 return w;
never executed: return w;
0
437 -
438 case PdmHeight: -
439 return h;
never executed: return h;
0
440 -
441 case PdmWidthMM: -
442 return qRound(w * 1000 / dpmx);
never executed: return qRound(w * 1000 / dpmx);
0
443 -
444 case PdmHeightMM: -
445 return qRound(h * 1000 / dpmy);
never executed: return qRound(h * 1000 / dpmy);
0
446 -
447 case PdmNumColors: -
448 return 0;
never executed: return 0;
0
449 -
450 case PdmDepth: -
451 return 32;//d->depth;
never executed: return 32;
0
452 -
453 case PdmDpiX: -
454 return qRound(dpmx * 0.0254);
never executed: return qRound(dpmx * 0.0254);
0
455 -
456 case PdmDpiY: -
457 return qRound(dpmy * 0.0254);
never executed: return qRound(dpmy * 0.0254);
0
458 -
459 case PdmPhysicalDpiX: -
460 return qRound(dpmx * 0.0254);
never executed: return qRound(dpmx * 0.0254);
0
461 -
462 case PdmPhysicalDpiY: -
463 return qRound(dpmy * 0.0254);
never executed: return qRound(dpmy * 0.0254);
0
464 -
465 default: -
466 qWarning("QGLPixelBuffer::metric(), Unhandled metric type: %d\n", metric);
never executed (the execution status of this line is deduced): QMessageLogger("qglpixelbuffer.cpp", 466, __PRETTY_FUNCTION__).warning("QGLPixelBuffer::metric(), Unhandled metric type: %d\n", metric);
-
467 break;
never executed: break;
0
468 } -
469 return 0;
never executed: return 0;
0
470} -
471 -
472/*! -
473 Generates and binds a 2D GL texture to the current context, based -
474 on \a image. The generated texture id is returned and can be used -
475 in later glBindTexture() calls. -
476 -
477 The \a target parameter specifies the texture target. -
478 -
479 Equivalent to calling QGLContext::bindTexture(). -
480 -
481 \sa deleteTexture() -
482*/ -
483GLuint QGLPixelBuffer::bindTexture(const QImage &image, GLenum target) -
484{ -
485 Q_D(QGLPixelBuffer);
never executed (the execution status of this line is deduced): QGLPixelBufferPrivate * const d = d_func();
-
486#ifndef QT_OPENGL_ES -
487 return d->qctx->bindTexture(image, target, GLint(GL_RGBA8));
never executed: return d->qctx->bindTexture(image, target, GLint(0x8058));
0
488#else -
489 return d->qctx->bindTexture(image, target, GL_RGBA); -
490#endif -
491} -
492 -
493/*! \overload -
494 -
495 Generates and binds a 2D GL texture based on \a pixmap. -
496 -
497 Equivalent to calling QGLContext::bindTexture(). -
498 -
499 \sa deleteTexture() -
500*/ -
501GLuint QGLPixelBuffer::bindTexture(const QPixmap &pixmap, GLenum target) -
502{ -
503 Q_D(QGLPixelBuffer);
never executed (the execution status of this line is deduced): QGLPixelBufferPrivate * const d = d_func();
-
504#ifndef QT_OPENGL_ES -
505 return d->qctx->bindTexture(pixmap, target, GLint(GL_RGBA8));
never executed: return d->qctx->bindTexture(pixmap, target, GLint(0x8058));
0
506#else -
507 return d->qctx->bindTexture(pixmap, target, GL_RGBA); -
508#endif -
509} -
510 -
511/*! \overload -
512 -
513 Reads the DirectDrawSurface (DDS) compressed file \a fileName and -
514 generates a 2D GL texture from it. -
515 -
516 Equivalent to calling QGLContext::bindTexture(). -
517 -
518 \sa deleteTexture() -
519*/ -
520GLuint QGLPixelBuffer::bindTexture(const QString &fileName) -
521{ -
522 Q_D(QGLPixelBuffer);
never executed (the execution status of this line is deduced): QGLPixelBufferPrivate * const d = d_func();
-
523 return d->qctx->bindTexture(fileName);
never executed: return d->qctx->bindTexture(fileName);
0
524} -
525 -
526/*! -
527 Removes the texture identified by \a texture_id from the texture cache. -
528 -
529 Equivalent to calling QGLContext::deleteTexture(). -
530 */ -
531void QGLPixelBuffer::deleteTexture(GLuint texture_id) -
532{ -
533 Q_D(QGLPixelBuffer);
never executed (the execution status of this line is deduced): QGLPixelBufferPrivate * const d = d_func();
-
534 d->qctx->deleteTexture(texture_id);
never executed (the execution status of this line is deduced): d->qctx->deleteTexture(texture_id);
-
535}
never executed: }
0
536 -
537/*! -
538 \since 4.4 -
539 -
540 Draws the given texture, \a textureId, to the given target rectangle, -
541 \a target, in OpenGL model space. The \a textureTarget should be a 2D -
542 texture target. -
543 -
544 Equivalent to the corresponding QGLContext::drawTexture(). -
545*/ -
546void QGLPixelBuffer::drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget) -
547{ -
548 Q_D(QGLPixelBuffer);
never executed (the execution status of this line is deduced): QGLPixelBufferPrivate * const d = d_func();
-
549 d->qctx->drawTexture(target, textureId, textureTarget);
never executed (the execution status of this line is deduced): d->qctx->drawTexture(target, textureId, textureTarget);
-
550}
never executed: }
0
551 -
552/*! -
553 \since 4.4 -
554 -
555 Draws the given texture, \a textureId, at the given \a point in OpenGL model -
556 space. The textureTarget parameter should be a 2D texture target. -
557 -
558 Equivalent to the corresponding QGLContext::drawTexture(). -
559*/ -
560void QGLPixelBuffer::drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget) -
561{ -
562 Q_D(QGLPixelBuffer);
never executed (the execution status of this line is deduced): QGLPixelBufferPrivate * const d = d_func();
-
563 d->qctx->drawTexture(point, textureId, textureTarget);
never executed (the execution status of this line is deduced): d->qctx->drawTexture(point, textureId, textureTarget);
-
564}
never executed: }
0
565 -
566/*! -
567 Returns the format of the pbuffer. The format may be different -
568 from the one that was requested. -
569*/ -
570QGLFormat QGLPixelBuffer::format() const -
571{ -
572 Q_D(const QGLPixelBuffer);
never executed (the execution status of this line is deduced): const QGLPixelBufferPrivate * const d = d_func();
-
573 return d->format;
never executed: return d->format;
0
574} -
575 -
576/*! \fn int QGLPixelBuffer::devType() const -
577 \internal -
578*/ -
579 -
580bool QGLPixelBufferPrivate::init(const QSize &, const QGLFormat &f, QGLWidget *shareWidget) -
581{ -
582 widget = new QGLWidget(f, 0, shareWidget);
never executed (the execution status of this line is deduced): widget = new QGLWidget(f, 0, shareWidget);
-
583 widget->resize(1, 1);
never executed (the execution status of this line is deduced): widget->resize(1, 1);
-
584 qctx = const_cast<QGLContext *>(widget->context());
never executed (the execution status of this line is deduced): qctx = const_cast<QGLContext *>(widget->context());
-
585 return widget->isValid();
never executed: return widget->isValid();
0
586} -
587 -
588bool QGLPixelBufferPrivate::cleanup() -
589{ -
590 delete fbo;
never executed (the execution status of this line is deduced): delete fbo;
-
591 fbo = 0;
never executed (the execution status of this line is deduced): fbo = 0;
-
592 delete blit_fbo;
never executed (the execution status of this line is deduced): delete blit_fbo;
-
593 blit_fbo = 0;
never executed (the execution status of this line is deduced): blit_fbo = 0;
-
594 delete widget;
never executed (the execution status of this line is deduced): delete widget;
-
595 widget = 0;
never executed (the execution status of this line is deduced): widget = 0;
-
596 return true;
never executed: return true;
0
597} -
598 -
599bool QGLPixelBuffer::bindToDynamicTexture(GLuint texture_id) -
600{ -
601 Q_UNUSED(texture_id);
never executed (the execution status of this line is deduced): (void)texture_id;;
-
602 return false;
never executed: return false;
0
603} -
604 -
605void QGLPixelBuffer::releaseFromDynamicTexture() -
606{ -
607} -
608 -
609GLuint QGLPixelBuffer::generateDynamicTexture() const -
610{ -
611 Q_D(const QGLPixelBuffer);
never executed (the execution status of this line is deduced): const QGLPixelBufferPrivate * const d = d_func();
-
612 if (!d->fbo)
never evaluated: !d->fbo
0
613 return 0;
never executed: return 0;
0
614 -
615 if (d->fbo->format().samples() > 0
never evaluated: d->fbo->format().samples() > 0
0
616 && QOpenGLExtensions(QOpenGLContext::currentContext())
never evaluated: QOpenGLExtensions(QOpenGLContext::currentContext()) .hasOpenGLExtension(QOpenGLExtensions::FramebufferBlit)
0
617 .hasOpenGLExtension(QOpenGLExtensions::FramebufferBlit))
never evaluated: QOpenGLExtensions(QOpenGLContext::currentContext()) .hasOpenGLExtension(QOpenGLExtensions::FramebufferBlit)
0
618 { -
619 if (!d->blit_fbo)
never evaluated: !d->blit_fbo
0
620 const_cast<QOpenGLFramebufferObject *&>(d->blit_fbo) = new QOpenGLFramebufferObject(d->req_size);
never executed: const_cast<QOpenGLFramebufferObject *&>(d->blit_fbo) = new QOpenGLFramebufferObject(d->req_size);
0
621 } else {
never executed: }
0
622 return d->fbo->texture();
never executed: return d->fbo->texture();
0
623 } -
624 -
625 GLuint texture;
never executed (the execution status of this line is deduced): GLuint texture;
-
626 -
627 glGenTextures(1, &texture);
never executed (the execution status of this line is deduced): glGenTextures(1, &texture);
-
628 glBindTexture(GL_TEXTURE_2D, texture);
never executed (the execution status of this line is deduced): glBindTexture(0x0DE1, texture);
-
629 -
630 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
never executed (the execution status of this line is deduced): glTexParameteri(0x0DE1, 0x2801, 0x2600);
-
631 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
never executed (the execution status of this line is deduced): glTexParameteri(0x0DE1, 0x2800, 0x2600);
-
632 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
never executed (the execution status of this line is deduced): glTexParameteri(0x0DE1, 0x2802, 0x812F);
-
633 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
never executed (the execution status of this line is deduced): glTexParameteri(0x0DE1, 0x2803, 0x812F);
-
634 -
635 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, d->req_size.width(), d->req_size.height(), 0,
never executed (the execution status of this line is deduced): glTexImage2D(0x0DE1, 0, 0x1908, d->req_size.width(), d->req_size.height(), 0,
-
636 GL_RGBA, GL_UNSIGNED_BYTE, 0);
never executed (the execution status of this line is deduced): 0x1908, 0x1401, 0);
-
637 -
638 return texture;
never executed: return texture;
0
639} -
640 -
641bool QGLPixelBuffer::hasOpenGLPbuffers() -
642{ -
643 return QGLFramebufferObject::hasOpenGLFramebufferObjects();
never executed: return QGLFramebufferObject::hasOpenGLFramebufferObjects();
0
644} -
645 -
646QT_END_NAMESPACE -
647 -
Source codeSwitch to Preprocessed file
Generated by Squish Coco Non-Commercial