qeglplatformcontext.cpp

Absolute File Name:/home/qt/qt5_coco/qt5/qtbase/src/platformsupport/eglconvenience/qeglplatformcontext.cpp
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7QEGLPlatformContext::QEGLPlatformContext(const QSurfaceFormat &format, QPlatformOpenGLContext *share, EGLDisplay display,-
8 EGLConfig *config, const QVariant &nativeHandle, Flags flags)-
9 : m_eglDisplay(display)-
10 , m_swapInterval(-1)-
11 , m_swapIntervalEnvChecked(false)-
12 , m_swapIntervalFromEnv(-1)-
13 , m_flags(flags)-
14{-
15 if (nativeHandle.isNull()
nativeHandle.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
16 m_eglConfig = config
configDescription
TRUEnever evaluated
FALSEnever evaluated
 ? *config : q_configFromGLFormat(display, format);		0
17 m_ownsContext = true;-
18 init(format, share);-
19 }
never executed: end of block
 else {		0
20 m_ownsContext = false;-
21 adopt(nativeHandle, share);-
22 }
never executed: end of block
0
23}-
24-
25void QEGLPlatformContext::init(const QSurfaceFormat &format, QPlatformOpenGLContext *share)-
26{-
27 m_format = q_glFormatFromConfig(m_eglDisplay, m_eglConfig);-
28-
29-
30 m_shareContext = share
shareDescription
TRUEnever evaluated
FALSEnever evaluated
 ? static_cast<QEGLPlatformContext *>(share)->m_eglContext : 0;		0
31-
32 QVector<EGLint> contextAttrs;-
33 contextAttrs.append(0x3098);-
34 contextAttrs.append(format.majorVersion());-
35 const bool hasKHRCreateContext = q_hasEglExtension(m_eglDisplay, "EGL_KHR_create_context");-
36 if (hasKHRCreateContext
hasKHRCreateContextDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
37 contextAttrs.append(0x30FB);-
38 contextAttrs.append(format.minorVersion());-
39 int flags = 0;-
40-
41 if (format.testOption(QSurfaceFormat::DebugContext)
format.testOpt...:DebugContext)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
42 flags |= 0x00000001;
never executed: flags |= 0x00000001;
0
43-
44 if (m_format.renderableType() == QSurfaceFormat::OpenGL
m_format.rende...Format::OpenGLDescription
TRUEnever evaluated
FALSEnever evaluated
0
45 && format.majorVersion() >= 3
format.majorVersion() >= 3Description
TRUEnever evaluated
FALSEnever evaluated
0
46 && !format.testOption(QSurfaceFormat::DeprecatedFunctions)
!format.testOp...atedFunctions)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
47 flags |= 0x00000002;
never executed: flags |= 0x00000002;
0
48 if (flags
flagsDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
49 contextAttrs.append(0x30FC);-
50 contextAttrs.append(flags);-
51 }
never executed: end of block
0
52-
53 if (m_format.renderableType() == QSurfaceFormat::OpenGL
m_format.rende...Format::OpenGLDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
54 contextAttrs.append(0x30FD);-
55 contextAttrs.append(format.profile() == QSurfaceFormat::CoreProfile-
56 ? 0x00000001-
57 : 0x00000002);-
58 }
never executed: end of block
0
59 }
never executed: end of block
0
60 contextAttrs.append(0x3038);-
61 m_contextAttrs = contextAttrs;-
62-
63 switch (m_format.renderableType()) {-
64 case
never executed: case QSurfaceFormat::OpenVG:
 QSurfaceFormat::OpenVG:
never executed: case QSurfaceFormat::OpenVG:
0
65 m_api = 0x30A1;-
66 break;
never executed: break;
0
67-
68 case
never executed: case QSurfaceFormat::OpenGL:
 QSurfaceFormat::OpenGL:
never executed: case QSurfaceFormat::OpenGL:
0
69 m_api = 0x30A2;-
70 break;
never executed: break;
0
71-
72 default
never executed: default:
:
never executed: default:
0
73 m_api = 0x30A0;-
74 break;
never executed: break;
0
75 }-
76-
77 eglBindAPI(m_api);-
78 m_eglContext = eglCreateContext(m_eglDisplay, m_eglConfig, m_shareContext, contextAttrs.constData());-
79 if (m_eglContext == ((EGLContext)0)
m_eglContext =...(EGLContext)0)Description
TRUEnever evaluated
FALSEnever evaluated
 && m_shareContext != ((EGLContext)0)
m_shareContext...(EGLContext)0)Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
80 m_shareContext = 0;-
81 m_eglContext = eglCreateContext(m_eglDisplay, m_eglConfig, 0, contextAttrs.constData());-
82 }
never executed: end of block
0
83-
84 if (m_eglContext == ((EGLContext)0)
m_eglContext =...(EGLContext)0)Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
85 QMessageLogger(__FILE__, 186, __PRETTY_FUNCTION__).warning("QEGLPlatformContext: Failed to create context: %x", eglGetError());-
86 return;
never executed: return;
0
87 }-
88-
89 static const bool printConfig = qEnvironmentVariableIntValue("QT_QPA_EGLFS_DEBUG");-
90 if (printConfig
printConfigDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
91 QMessageLogger(__FILE__, 192, __PRETTY_FUNCTION__).debug() << "Created context for format" << format << "with config:";-
92 q_printEglConfig(m_eglDisplay, m_eglConfig);-
93 }
never executed: end of block
0
94-
95-
96}
never executed: end of block
0
97-
98void QEGLPlatformContext::adopt(const QVariant &nativeHandle, QPlatformOpenGLContext *share)-
99{-
100 if (!nativeHandle.canConvert<QEGLNativeContext>()
!nativeHandle....tiveContext>()Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
101 QMessageLogger(__FILE__, 202, __PRETTY_FUNCTION__).warning("QEGLPlatformContext: Requires a QEGLNativeContext");-
102 return;
never executed: return;
0
103 }-
104 QEGLNativeContext handle = nativeHandle.value<QEGLNativeContext>();-
105 EGLContext context = handle.context();-
106 if (!context
!contextDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
107 QMessageLogger(__FILE__, 208, __PRETTY_FUNCTION__).warning("QEGLPlatformContext: No EGLContext given");-
108 return;
never executed: return;
0
109 }-
110-
111-
112 if (handle.display() != m_eglDisplay
handle.display...= m_eglDisplayDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
113 QMessageLogger(__FILE__, 214, __PRETTY_FUNCTION__).warning("QEGLPlatformContext: Cannot adopt context from different display");-
114 return;
never executed: return;
0
115 }-
116-
117-
118 EGLint value = 0;-
119 eglQueryContext(m_eglDisplay, context, 0x3028, &value);-
120 EGLint n = 0;-
121 EGLConfig cfg;-
122 const EGLint attribs[] = { 0x3028, value, 0x3038 };-
123 if (eglChooseConfig(m_eglDisplay, attribs, &cfg, 1, &n)
eglChooseConfi..., &cfg, 1, &n)Description
TRUEnever evaluated
FALSEnever evaluated
 && n == 1
n == 1Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
124 m_eglConfig = cfg;-
125 m_format = q_glFormatFromConfig(m_eglDisplay, m_eglConfig);-
126 }
never executed: end of block
 else {		0
127 QMessageLogger(__FILE__, 228, __PRETTY_FUNCTION__).warning("QEGLPlatformContext: Failed to get framebuffer configuration for context");-
128 }
never executed: end of block
0
129-
130-
131 value = 0;-
132 eglQueryContext(m_eglDisplay, context, 0x3097, &value);-
133 if (value == 0x30A2
value == 0x30A2Description
TRUEnever evaluated
FALSEnever evaluated
 || value == 0x30A0
value == 0x30A0Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
134 m_api = value;-
135 eglBindAPI(m_api);-
136 }
never executed: end of block
 else {		0
137 QMessageLogger(__FILE__, 238, __PRETTY_FUNCTION__).warning("QEGLPlatformContext: Failed to get client API type");-
138 m_api = 0x30A0;-
139 }
never executed: end of block
0
140-
141 m_eglContext = context;-
142 m_shareContext = share
shareDescription
TRUEnever evaluated
FALSEnever evaluated
 ? static_cast<QEGLPlatformContext *>(share)->m_eglContext : 0;		0
143 updateFormatFromGL();-
144}
never executed: end of block
0
145-
146void QEGLPlatformContext::initialize()-
147{-
148 if (m_eglContext != ((EGLContext)0)
m_eglContext !...(EGLContext)0)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
149 updateFormatFromGL();
never executed: updateFormatFromGL();
0
150}
never executed: end of block
0
151-
152-
153-
154EGLSurface QEGLPlatformContext::createTemporaryOffscreenSurface()-
155{-
156-
157 const EGLint pbufferAttributes[] = {-
158 0x3057, 1,-
159 0x3056, 1,-
160 0x3058, 0,-
161 0x3038-
162 };-
163-
164-
165-
166-
167 EGLConfig config = q_configFromGLFormat(m_eglDisplay, m_format, false, 0x0001);-
168-
169 return
never executed: return eglCreatePbufferSurface(m_eglDisplay, config, pbufferAttributes);
 eglCreatePbufferSurface(m_eglDisplay, config, pbufferAttributes);
never executed: return eglCreatePbufferSurface(m_eglDisplay, config, pbufferAttributes);
0
170}-
171-
172void QEGLPlatformContext::destroyTemporaryOffscreenSurface(EGLSurface surface)-
173{-
174 eglDestroySurface(m_eglDisplay, surface);-
175}
never executed: end of block
0
176-
177void QEGLPlatformContext::runGLChecks()-
178{-
179-
180-
181}-
182-
183void QEGLPlatformContext::updateFormatFromGL()-
184{-
185-
186-
187-
188 EGLDisplay prevDisplay = eglGetCurrentDisplay();-
189 if (prevDisplay == ((EGLDisplay)0)
prevDisplay == ((EGLDisplay)0)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
190 prevDisplay = m_eglDisplay;
never executed: prevDisplay = m_eglDisplay;
0
191 EGLContext prevContext = eglGetCurrentContext();-
192 EGLSurface prevSurfaceDraw = eglGetCurrentSurface(0x3059);-
193 EGLSurface prevSurfaceRead = eglGetCurrentSurface(0x305A);-
194-
195-
196-
197-
198 EGLSurface tempSurface = ((EGLSurface)0);-
199 EGLContext tempContext = ((EGLContext)0);-
200 if (m_flags.testFlag(NoSurfaceless)
m_flags.testFl...NoSurfaceless)Description
TRUEnever evaluated
FALSEnever evaluated
 || !q_hasEglExtension(m_eglDisplay, "EGL_KHR_surfaceless_context")
!q_hasEglExten...less_context")Description
TRUEnever evaluated
FALSEnever evaluated
)		0
201 tempSurface = createTemporaryOffscreenSurface();
never executed: tempSurface = createTemporaryOffscreenSurface();
0
202-
203 EGLBoolean ok = eglMakeCurrent(m_eglDisplay, tempSurface, tempSurface, m_eglContext);-
204 if (!ok
!okDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
205 EGLConfig config = q_configFromGLFormat(m_eglDisplay, m_format, false, 0x0001);-
206 tempContext = eglCreateContext(m_eglDisplay, config, 0, m_contextAttrs.constData());-
207 if (tempContext != ((EGLContext)0)
tempContext != ((EGLContext)0)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
208 ok = eglMakeCurrent(m_eglDisplay, tempSurface, tempSurface, tempContext);
never executed: ok = eglMakeCurrent(m_eglDisplay, tempSurface, tempSurface, tempContext);
0
209 }
never executed: end of block
0
210 if (ok
okDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
211 if (m_format.renderableType() == QSurfaceFormat::OpenGL
m_format.rende...Format::OpenGLDescription
TRUEnever evaluated
FALSEnever evaluated
0
212 || m_format.renderableType() == QSurfaceFormat::OpenGLES
m_format.rende...rmat::OpenGLESDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
213 const GLubyte *s = glGetString(0x1F02);-
214 if (s
sDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
215 QByteArray version = QByteArray(reinterpret_cast<const char *>(s));-
216 int major, minor;-
217 if (QPlatformOpenGLContext::parseOpenGLVersion(version, major, minor)
QPlatformOpenG... major, minor)Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
218 m_format.setMajorVersion(major);-
219 m_format.setMinorVersion(minor);-
220 }
never executed: end of block
0
221 }
never executed: end of block
0
222 m_format.setProfile(QSurfaceFormat::NoProfile);-
223 m_format.setOptions(QSurfaceFormat::FormatOptions());-
224 if (m_format.renderableType() == QSurfaceFormat::OpenGL
m_format.rende...Format::OpenGLDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
225-
226 if (m_format.majorVersion() < 3
m_format.majorVersion() < 3Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
227 m_format.setOption(QSurfaceFormat::DeprecatedFunctions);-
228 }
never executed: end of block
 else {		0
229 GLint value = 0;-
230 glGetIntegerv(0x821E, &value);-
231 if (!(value & 0x00000001)
!(value & 0x00000001)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
232 m_format.setOption(QSurfaceFormat::DeprecatedFunctions);
never executed: m_format.setOption(QSurfaceFormat::DeprecatedFunctions);
0
233 if (value & 0x00000002
value & 0x00000002Description
TRUEnever evaluated
FALSEnever evaluated
)		0
234 m_format.setOption(QSurfaceFormat::DebugContext);
never executed: m_format.setOption(QSurfaceFormat::DebugContext);
0
235 if (m_format.version() >= qMakePair(3, 2)
m_format.versi...MakePair(3, 2)Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
236 value = 0;-
237 glGetIntegerv(0x9126, &value);-
238 if (value & 0x00000001
value & 0x00000001Description
TRUEnever evaluated
FALSEnever evaluated
)		0
239 m_format.setProfile(QSurfaceFormat::CoreProfile);
never executed: m_format.setProfile(QSurfaceFormat::CoreProfile);
0
240 else if (value & 0x00000002
value & 0x00000002Description
TRUEnever evaluated
FALSEnever evaluated
)		0
241 m_format.setProfile(QSurfaceFormat::CompatibilityProfile);
never executed: m_format.setProfile(QSurfaceFormat::CompatibilityProfile);
0
242 }
never executed: end of block
0
243 }
never executed: end of block
0
244 }-
245 }
never executed: end of block
0
246 runGLChecks();-
247 eglMakeCurrent(prevDisplay, prevSurfaceDraw, prevSurfaceRead, prevContext);-
248 }
never executed: end of block
 else {		0
249 QMessageLogger(__FILE__, 358, __PRETTY_FUNCTION__).warning("QEGLPlatformContext: Failed to make temporary surface current, format not updated (%x)", eglGetError());-
250 }
never executed: end of block
0
251 if (tempSurface != ((EGLSurface)0)
tempSurface != ((EGLSurface)0)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
252 destroyTemporaryOffscreenSurface(tempSurface);
never executed: destroyTemporaryOffscreenSurface(tempSurface);
0
253 if (tempContext != ((EGLContext)0)
tempContext != ((EGLContext)0)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
254 eglDestroyContext(m_eglDisplay, tempContext);
never executed: eglDestroyContext(m_eglDisplay, tempContext);
0
255-
256}
never executed: end of block
0
257-
258bool QEGLPlatformContext::makeCurrent(QPlatformSurface *surface)-
259{-
260 ((!(surface->surface()->supportsOpenGL())) ? qt_assert("surface->surface()->supportsOpenGL()",__FILE__,369) : qt_noop());-
261-
262 eglBindAPI(m_api);-
263-
264 EGLSurface eglSurface = eglSurfaceForPlatformSurface(surface);-
265-
266-
267 if (eglGetCurrentContext() == m_eglContext
eglGetCurrentC...= m_eglContextDescription
TRUEnever evaluated
FALSEnever evaluated
 &&		0
268 eglGetCurrentDisplay() == m_eglDisplay
eglGetCurrentD...= m_eglDisplayDescription
TRUEnever evaluated
FALSEnever evaluated
 &&		0
269 eglGetCurrentSurface(0x305A) == eglSurface
eglGetCurrentS... == eglSurfaceDescription
TRUEnever evaluated
FALSEnever evaluated
 &&		0
270 eglGetCurrentSurface(0x3059) == eglSurface
eglGetCurrentS... == eglSurfaceDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
271 return
never executed: return true;
 true;
never executed: return true;
0
272 }-
273-
274 const bool ok = eglMakeCurrent(m_eglDisplay, eglSurface, eglSurface, m_eglContext);-
275 if (ok
okDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
276 if (!m_swapIntervalEnvChecked
!m_swapIntervalEnvCheckedDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
277 m_swapIntervalEnvChecked = true;-
278 if (qEnvironmentVariableIsSet("QT_QPA_EGLFS_SWAPINTERVAL")
qEnvironmentVa...SWAPINTERVAL")Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
279 QByteArray swapIntervalString = qgetenv("QT_QPA_EGLFS_SWAPINTERVAL");-
280 bool intervalOk;-
281 const int swapInterval = swapIntervalString.toInt(&intervalOk);-
282 if (intervalOk
intervalOkDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
283 m_swapIntervalFromEnv = swapInterval;
never executed: m_swapIntervalFromEnv = swapInterval;
0
284 }
never executed: end of block
0
285 }
never executed: end of block
0
286 const int requestedSwapInterval = m_swapIntervalFromEnv >= 0
m_swapIntervalFromEnv >= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
287 ? m_swapIntervalFromEnv-
288 : surface->format().swapInterval();-
289 if (requestedSwapInterval >= 0
requestedSwapInterval >= 0Description
TRUEnever evaluated
FALSEnever evaluated
 && m_swapInterval != requestedSwapInterval
m_swapInterval...edSwapIntervalDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
290 m_swapInterval = requestedSwapInterval;-
291 if (eglSurface != ((EGLSurface)0)
eglSurface != ((EGLSurface)0)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
292 eglSwapInterval(eglDisplay(), m_swapInterval);
never executed: eglSwapInterval(eglDisplay(), m_swapInterval);
0
293 }
never executed: end of block
0
294 }
never executed: end of block
 else {		0
295 QMessageLogger(__FILE__, 404, __PRETTY_FUNCTION__).warning("QEGLPlatformContext: eglMakeCurrent failed: %x", eglGetError());-
296 }
never executed: end of block
0
297-
298 return
never executed: return ok;
 ok;
never executed: return ok;
0
299}-
300-
301QEGLPlatformContext::~QEGLPlatformContext()-
302{-
303 if (m_ownsContext
m_ownsContextDescription
TRUEnever evaluated
FALSEnever evaluated
 && m_eglContext != ((EGLContext)0)
m_eglContext !...(EGLContext)0)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
304 eglDestroyContext(m_eglDisplay, m_eglContext);
never executed: eglDestroyContext(m_eglDisplay, m_eglContext);
0
305-
306 m_eglContext = ((EGLContext)0);-
307}
never executed: end of block
0
308-
309void QEGLPlatformContext::doneCurrent()-
310{-
311 eglBindAPI(m_api);-
312 bool ok = eglMakeCurrent(m_eglDisplay, ((EGLSurface)0), ((EGLSurface)0), ((EGLContext)0));-
313 if (!ok
!okDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
314 QMessageLogger(__FILE__, 423, __PRETTY_FUNCTION__).warning("QEGLPlatformContext: eglMakeCurrent failed: %x", eglGetError());
never executed: QMessageLogger(__FILE__, 423, __PRETTY_FUNCTION__).warning("QEGLPlatformContext: eglMakeCurrent failed: %x", eglGetError());
0
315}
never executed: end of block
0
316-
317void QEGLPlatformContext::swapBuffers(QPlatformSurface *surface)-
318{-
319 eglBindAPI(m_api);-
320 EGLSurface eglSurface = eglSurfaceForPlatformSurface(surface);-
321 if (eglSurface != ((EGLSurface)0)
eglSurface != ((EGLSurface)0)Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
322 bool ok = eglSwapBuffers(m_eglDisplay, eglSurface);-
323 if (!ok
!okDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
324 QMessageLogger(__FILE__, 433, __PRETTY_FUNCTION__).warning("QEGLPlatformContext: eglSwapBuffers failed: %x", eglGetError());
never executed: QMessageLogger(__FILE__, 433, __PRETTY_FUNCTION__).warning("QEGLPlatformContext: eglSwapBuffers failed: %x", eglGetError());
0
325 }
never executed: end of block
0
326}
never executed: end of block
0
327-
328void (*QEGLPlatformContext::getProcAddress(const QByteArray &procName)) ()-
329{-
330 eglBindAPI(m_api);-
331 return
never executed: return eglGetProcAddress(procName.constData());
 eglGetProcAddress(procName.constData());
never executed: return eglGetProcAddress(procName.constData());
0
332}-
333-
334QSurfaceFormat QEGLPlatformContext::format() const-
335{-
336 return
never executed: return m_format;
 m_format;
never executed: return m_format;
0
337}-
338-
339EGLContext QEGLPlatformContext::eglContext() const-
340{-
341 return
never executed: return m_eglContext;
 m_eglContext;
never executed: return m_eglContext;
0
342}-
343-
344EGLDisplay QEGLPlatformContext::eglDisplay() const-
345{-
346 return
never executed: return m_eglDisplay;
 m_eglDisplay;
never executed: return m_eglDisplay;
0
347}-
348-
349EGLConfig QEGLPlatformContext::eglConfig() const-
350{-
351 return
never executed: return m_eglConfig;
 m_eglConfig;
never executed: return m_eglConfig;
0
352}-
353-
354-
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