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48
49#include "qopenglfunctions_4_2_compatibility.h"
50#include "qopenglcontext.h"
51
52QT_BEGIN_NAMESPACE
53
54/*!
55 \class QOpenGLFunctions_4_2_Compatibility
56 \inmodule QtGui
57 \since 5.1
58 \wrapper
59 \brief The QOpenGLFunctions_4_2_Compatibility class provides all functions for OpenGL 4.2 compatibility profile.
60
61 This class is a wrapper for functions from OpenGL 4.2 compatibility profile.
62 See reference pages on \l {http://www.opengl.org/sdk/docs/}{opengl.org}
63 for function documentation.
64
65 \sa QAbstractOpenGLFunctions
66*/
67
68QOpenGLFunctions_4_2_Compatibility::QOpenGLFunctions_4_2_Compatibility()
69 : QAbstractOpenGLFunctions()
70 , d_1_0_Core(nullptr)
71 , d_1_1_Core(nullptr)
72 , d_1_2_Core(nullptr)
73 , d_1_3_Core(nullptr)
74 , d_1_4_Core(nullptr)
75 , d_1_5_Core(nullptr)
76 , d_2_0_Core(nullptr)
77 , d_2_1_Core(nullptr)
78 , d_3_0_Core(nullptr)
79 , d_3_1_Core(nullptr)
80 , d_3_2_Core(nullptr)
81 , d_3_3_Core(nullptr)
82 , d_4_0_Core(nullptr)
83 , d_4_1_Core(nullptr)
84 , d_4_2_Core(nullptr)
85 , d_1_0_Deprecated(nullptr)
86 , d_1_1_Deprecated(nullptr)
87 , d_1_2_Deprecated(nullptr)
88 , d_1_3_Deprecated(nullptr)
89 , d_1_4_Deprecated(nullptr)
90 , m_reserved_2_0_Deprecated(nullptr)
91 , d_3_3_Deprecated(nullptr)
92{
93}
94
95QOpenGLFunctions_4_2_Compatibility::~QOpenGLFunctions_4_2_Compatibility()
96{
97 if (d_1_0_Core) {
98 d_1_0_Core->refs.deref();
99 Q_ASSERT(d_1_0_Core->refs.loadRelaxed());
100 }
101 if (d_1_1_Core) {
102 d_1_1_Core->refs.deref();
103 Q_ASSERT(d_1_1_Core->refs.loadRelaxed());
104 }
105 if (d_1_2_Core) {
106 d_1_2_Core->refs.deref();
107 Q_ASSERT(d_1_2_Core->refs.loadRelaxed());
108 }
109 if (d_1_3_Core) {
110 d_1_3_Core->refs.deref();
111 Q_ASSERT(d_1_3_Core->refs.loadRelaxed());
112 }
113 if (d_1_4_Core) {
114 d_1_4_Core->refs.deref();
115 Q_ASSERT(d_1_4_Core->refs.loadRelaxed());
116 }
117 if (d_1_5_Core) {
118 d_1_5_Core->refs.deref();
119 Q_ASSERT(d_1_5_Core->refs.loadRelaxed());
120 }
121 if (d_2_0_Core) {
122 d_2_0_Core->refs.deref();
123 Q_ASSERT(d_2_0_Core->refs.loadRelaxed());
124 }
125 if (d_2_1_Core) {
126 d_2_1_Core->refs.deref();
127 Q_ASSERT(d_2_1_Core->refs.loadRelaxed());
128 }
129 if (d_3_0_Core) {
130 d_3_0_Core->refs.deref();
131 Q_ASSERT(d_3_0_Core->refs.loadRelaxed());
132 }
133 if (d_3_1_Core) {
134 d_3_1_Core->refs.deref();
135 Q_ASSERT(d_3_1_Core->refs.loadRelaxed());
136 }
137 if (d_3_2_Core) {
138 d_3_2_Core->refs.deref();
139 Q_ASSERT(d_3_2_Core->refs.loadRelaxed());
140 }
141 if (d_3_3_Core) {
142 d_3_3_Core->refs.deref();
143 Q_ASSERT(d_3_3_Core->refs.loadRelaxed());
144 }
145 if (d_4_0_Core) {
146 d_4_0_Core->refs.deref();
147 Q_ASSERT(d_4_0_Core->refs.loadRelaxed());
148 }
149 if (d_4_1_Core) {
150 d_4_1_Core->refs.deref();
151 Q_ASSERT(d_4_1_Core->refs.loadRelaxed());
152 }
153 if (d_4_2_Core) {
154 d_4_2_Core->refs.deref();
155 Q_ASSERT(d_4_2_Core->refs.loadRelaxed());
156 }
157 if (d_1_0_Deprecated) {
158 d_1_0_Deprecated->refs.deref();
159 Q_ASSERT(d_1_0_Deprecated->refs.loadRelaxed());
160 }
161 if (d_1_1_Deprecated) {
162 d_1_1_Deprecated->refs.deref();
163 Q_ASSERT(d_1_1_Deprecated->refs.loadRelaxed());
164 }
165 if (d_1_2_Deprecated) {
166 d_1_2_Deprecated->refs.deref();
167 Q_ASSERT(d_1_2_Deprecated->refs.loadRelaxed());
168 }
169 if (d_1_3_Deprecated) {
170 d_1_3_Deprecated->refs.deref();
171 Q_ASSERT(d_1_3_Deprecated->refs.loadRelaxed());
172 }
173 if (d_1_4_Deprecated) {
174 d_1_4_Deprecated->refs.deref();
175 Q_ASSERT(d_1_4_Deprecated->refs.loadRelaxed());
176 }
177 if (d_3_3_Deprecated) {
178 d_3_3_Deprecated->refs.deref();
179 Q_ASSERT(d_3_3_Deprecated->refs.loadRelaxed());
180 }
181}
182
183bool QOpenGLFunctions_4_2_Compatibility::initializeOpenGLFunctions()
184{
185 if ( isInitialized() )
186 return true;
187
188 QOpenGLContext* context = QOpenGLContext::currentContext();
189
190 // If owned by a context object make sure it is current.
191 // Also check that current context is capable of resolving all needed functions
192 if (((owningContext() && owningContext() == context) || !owningContext())
193 && QOpenGLFunctions_4_2_Compatibility::isContextCompatible(context))
194 {
195 // Associate with private implementation, creating if necessary
196 // Function pointers in the backends are resolved at creation time
197 QOpenGLVersionFunctionsBackend* d = nullptr;
198 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_1_0_CoreBackend::versionStatus());
199 d_1_0_Core = static_cast<QOpenGLFunctions_1_0_CoreBackend*>(d);
200 d->refs.ref();
201
202 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_1_1_CoreBackend::versionStatus());
203 d_1_1_Core = static_cast<QOpenGLFunctions_1_1_CoreBackend*>(d);
204 d->refs.ref();
205
206 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_1_2_CoreBackend::versionStatus());
207 d_1_2_Core = static_cast<QOpenGLFunctions_1_2_CoreBackend*>(d);
208 d->refs.ref();
209
210 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_1_3_CoreBackend::versionStatus());
211 d_1_3_Core = static_cast<QOpenGLFunctions_1_3_CoreBackend*>(d);
212 d->refs.ref();
213
214 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_1_4_CoreBackend::versionStatus());
215 d_1_4_Core = static_cast<QOpenGLFunctions_1_4_CoreBackend*>(d);
216 d->refs.ref();
217
218 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_1_5_CoreBackend::versionStatus());
219 d_1_5_Core = static_cast<QOpenGLFunctions_1_5_CoreBackend*>(d);
220 d->refs.ref();
221
222 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_2_0_CoreBackend::versionStatus());
223 d_2_0_Core = static_cast<QOpenGLFunctions_2_0_CoreBackend*>(d);
224 d->refs.ref();
225
226 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_2_1_CoreBackend::versionStatus());
227 d_2_1_Core = static_cast<QOpenGLFunctions_2_1_CoreBackend*>(d);
228 d->refs.ref();
229
230 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_3_0_CoreBackend::versionStatus());
231 d_3_0_Core = static_cast<QOpenGLFunctions_3_0_CoreBackend*>(d);
232 d->refs.ref();
233
234 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_3_1_CoreBackend::versionStatus());
235 d_3_1_Core = static_cast<QOpenGLFunctions_3_1_CoreBackend*>(d);
236 d->refs.ref();
237
238 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_3_2_CoreBackend::versionStatus());
239 d_3_2_Core = static_cast<QOpenGLFunctions_3_2_CoreBackend*>(d);
240 d->refs.ref();
241
242 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_3_3_CoreBackend::versionStatus());
243 d_3_3_Core = static_cast<QOpenGLFunctions_3_3_CoreBackend*>(d);
244 d->refs.ref();
245
246 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_4_0_CoreBackend::versionStatus());
247 d_4_0_Core = static_cast<QOpenGLFunctions_4_0_CoreBackend*>(d);
248 d->refs.ref();
249
250 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_4_1_CoreBackend::versionStatus());
251 d_4_1_Core = static_cast<QOpenGLFunctions_4_1_CoreBackend*>(d);
252 d->refs.ref();
253
254 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_4_2_CoreBackend::versionStatus());
255 d_4_2_Core = static_cast<QOpenGLFunctions_4_2_CoreBackend*>(d);
256 d->refs.ref();
257
258 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_1_0_DeprecatedBackend::versionStatus());
259 d_1_0_Deprecated = static_cast<QOpenGLFunctions_1_0_DeprecatedBackend*>(d);
260 d->refs.ref();
261
262 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_1_1_DeprecatedBackend::versionStatus());
263 d_1_1_Deprecated = static_cast<QOpenGLFunctions_1_1_DeprecatedBackend*>(d);
264 d->refs.ref();
265
266 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_1_2_DeprecatedBackend::versionStatus());
267 d_1_2_Deprecated = static_cast<QOpenGLFunctions_1_2_DeprecatedBackend*>(d);
268 d->refs.ref();
269
270 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_1_3_DeprecatedBackend::versionStatus());
271 d_1_3_Deprecated = static_cast<QOpenGLFunctions_1_3_DeprecatedBackend*>(d);
272 d->refs.ref();
273
274 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_1_4_DeprecatedBackend::versionStatus());
275 d_1_4_Deprecated = static_cast<QOpenGLFunctions_1_4_DeprecatedBackend*>(d);
276 d->refs.ref();
277
278 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, v: QOpenGLFunctions_3_3_DeprecatedBackend::versionStatus());
279 d_3_3_Deprecated = static_cast<QOpenGLFunctions_3_3_DeprecatedBackend*>(d);
280 d->refs.ref();
281
282 QAbstractOpenGLFunctions::initializeOpenGLFunctions();
283 }
284 return isInitialized();
285}
286
287bool QOpenGLFunctions_4_2_Compatibility::isContextCompatible(QOpenGLContext *context)
288{
289 Q_ASSERT(context);
290 QSurfaceFormat f = context->format();
291 const QPair<int, int> v = qMakePair(x: f.majorVersion(), y: f.minorVersion());
292 if (v < qMakePair(x: 4, y: 2))
293 return false;
294
295 if (f.profile() == QSurfaceFormat::CoreProfile)
296 return false;
297
298 return true;
299}
300
301QOpenGLVersionProfile QOpenGLFunctions_4_2_Compatibility::versionProfile()
302{
303 QOpenGLVersionProfile v;
304 v.setVersion(majorVersion: 4, minorVersion: 2);
305 v.setProfile(QSurfaceFormat::CompatibilityProfile);
306 return v;
307}
308
309QT_END_NAMESPACE
310

source code of qtbase/src/gui/opengl/qopenglfunctions_4_2_compatibility.cpp