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48
49#include "qopenglfunctions_4_0_compatibility.h"
50#include "qopenglcontext.h"
51
52QT_BEGIN_NAMESPACE
53
54/*!
55 \class QOpenGLFunctions_4_0_Compatibility
56 \inmodule QtGui
57 \since 5.1
58 \wrapper
59 \brief The QOpenGLFunctions_4_0_Compatibility class provides all functions for OpenGL 4.0 compatibility profile.
60
61 This class is a wrapper for functions from OpenGL 4.0 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_0_Compatibility::QOpenGLFunctions_4_0_Compatibility()
69 : QAbstractOpenGLFunctions()
70 , d_1_0_Core(0)
71 , d_1_1_Core(0)
72 , d_1_2_Core(0)
73 , d_1_3_Core(0)
74 , d_1_4_Core(0)
75 , d_1_5_Core(0)
76 , d_2_0_Core(0)
77 , d_2_1_Core(0)
78 , d_3_0_Core(0)
79 , d_3_1_Core(0)
80 , d_3_2_Core(0)
81 , d_3_3_Core(0)
82 , d_4_0_Core(0)
83 , d_1_0_Deprecated(0)
84 , d_1_1_Deprecated(0)
85 , d_1_2_Deprecated(0)
86 , d_1_3_Deprecated(0)
87 , d_1_4_Deprecated(0)
88 , m_reserved_2_0_Deprecated(nullptr)
89 , d_3_3_Deprecated(0)
90{
91}
92
93QOpenGLFunctions_4_0_Compatibility::~QOpenGLFunctions_4_0_Compatibility()
94{
95 if (d_1_0_Core) {
96 d_1_0_Core->refs.deref();
97 Q_ASSERT(d_1_0_Core->refs.loadRelaxed());
98 }
99 if (d_1_1_Core) {
100 d_1_1_Core->refs.deref();
101 Q_ASSERT(d_1_1_Core->refs.loadRelaxed());
102 }
103 if (d_1_2_Core) {
104 d_1_2_Core->refs.deref();
105 Q_ASSERT(d_1_2_Core->refs.loadRelaxed());
106 }
107 if (d_1_3_Core) {
108 d_1_3_Core->refs.deref();
109 Q_ASSERT(d_1_3_Core->refs.loadRelaxed());
110 }
111 if (d_1_4_Core) {
112 d_1_4_Core->refs.deref();
113 Q_ASSERT(d_1_4_Core->refs.loadRelaxed());
114 }
115 if (d_1_5_Core) {
116 d_1_5_Core->refs.deref();
117 Q_ASSERT(d_1_5_Core->refs.loadRelaxed());
118 }
119 if (d_2_0_Core) {
120 d_2_0_Core->refs.deref();
121 Q_ASSERT(d_2_0_Core->refs.loadRelaxed());
122 }
123 if (d_2_1_Core) {
124 d_2_1_Core->refs.deref();
125 Q_ASSERT(d_2_1_Core->refs.loadRelaxed());
126 }
127 if (d_3_0_Core) {
128 d_3_0_Core->refs.deref();
129 Q_ASSERT(d_3_0_Core->refs.loadRelaxed());
130 }
131 if (d_3_1_Core) {
132 d_3_1_Core->refs.deref();
133 Q_ASSERT(d_3_1_Core->refs.loadRelaxed());
134 }
135 if (d_3_2_Core) {
136 d_3_2_Core->refs.deref();
137 Q_ASSERT(d_3_2_Core->refs.loadRelaxed());
138 }
139 if (d_3_3_Core) {
140 d_3_3_Core->refs.deref();
141 Q_ASSERT(d_3_3_Core->refs.loadRelaxed());
142 }
143 if (d_4_0_Core) {
144 d_4_0_Core->refs.deref();
145 Q_ASSERT(d_4_0_Core->refs.loadRelaxed());
146 }
147 if (d_1_0_Deprecated) {
148 d_1_0_Deprecated->refs.deref();
149 Q_ASSERT(d_1_0_Deprecated->refs.loadRelaxed());
150 }
151 if (d_1_1_Deprecated) {
152 d_1_1_Deprecated->refs.deref();
153 Q_ASSERT(d_1_1_Deprecated->refs.loadRelaxed());
154 }
155 if (d_1_2_Deprecated) {
156 d_1_2_Deprecated->refs.deref();
157 Q_ASSERT(d_1_2_Deprecated->refs.loadRelaxed());
158 }
159 if (d_1_3_Deprecated) {
160 d_1_3_Deprecated->refs.deref();
161 Q_ASSERT(d_1_3_Deprecated->refs.loadRelaxed());
162 }
163 if (d_1_4_Deprecated) {
164 d_1_4_Deprecated->refs.deref();
165 Q_ASSERT(d_1_4_Deprecated->refs.loadRelaxed());
166 }
167 if (d_3_3_Deprecated) {
168 d_3_3_Deprecated->refs.deref();
169 Q_ASSERT(d_3_3_Deprecated->refs.loadRelaxed());
170 }
171}
172
173bool QOpenGLFunctions_4_0_Compatibility::initializeOpenGLFunctions()
174{
175 if ( isInitialized() )
176 return true;
177
178 QOpenGLContext* context = QOpenGLContext::currentContext();
179
180 // If owned by a context object make sure it is current.
181 // Also check that current context is capable of resolving all needed functions
182 if (((owningContext() && owningContext() == context) || !owningContext())
183 && QOpenGLFunctions_4_0_Compatibility::isContextCompatible(context))
184 {
185 // Associate with private implementation, creating if necessary
186 // Function pointers in the backends are resolved at creation time
187 QOpenGLVersionFunctionsBackend* d = 0;
188 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_0_CoreBackend::versionStatus());
189 d_1_0_Core = static_cast<QOpenGLFunctions_1_0_CoreBackend*>(d);
190 d->refs.ref();
191
192 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_1_CoreBackend::versionStatus());
193 d_1_1_Core = static_cast<QOpenGLFunctions_1_1_CoreBackend*>(d);
194 d->refs.ref();
195
196 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_2_CoreBackend::versionStatus());
197 d_1_2_Core = static_cast<QOpenGLFunctions_1_2_CoreBackend*>(d);
198 d->refs.ref();
199
200 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_3_CoreBackend::versionStatus());
201 d_1_3_Core = static_cast<QOpenGLFunctions_1_3_CoreBackend*>(d);
202 d->refs.ref();
203
204 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_4_CoreBackend::versionStatus());
205 d_1_4_Core = static_cast<QOpenGLFunctions_1_4_CoreBackend*>(d);
206 d->refs.ref();
207
208 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_5_CoreBackend::versionStatus());
209 d_1_5_Core = static_cast<QOpenGLFunctions_1_5_CoreBackend*>(d);
210 d->refs.ref();
211
212 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_2_0_CoreBackend::versionStatus());
213 d_2_0_Core = static_cast<QOpenGLFunctions_2_0_CoreBackend*>(d);
214 d->refs.ref();
215
216 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_2_1_CoreBackend::versionStatus());
217 d_2_1_Core = static_cast<QOpenGLFunctions_2_1_CoreBackend*>(d);
218 d->refs.ref();
219
220 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_3_0_CoreBackend::versionStatus());
221 d_3_0_Core = static_cast<QOpenGLFunctions_3_0_CoreBackend*>(d);
222 d->refs.ref();
223
224 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_3_1_CoreBackend::versionStatus());
225 d_3_1_Core = static_cast<QOpenGLFunctions_3_1_CoreBackend*>(d);
226 d->refs.ref();
227
228 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_3_2_CoreBackend::versionStatus());
229 d_3_2_Core = static_cast<QOpenGLFunctions_3_2_CoreBackend*>(d);
230 d->refs.ref();
231
232 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_3_3_CoreBackend::versionStatus());
233 d_3_3_Core = static_cast<QOpenGLFunctions_3_3_CoreBackend*>(d);
234 d->refs.ref();
235
236 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_4_0_CoreBackend::versionStatus());
237 d_4_0_Core = static_cast<QOpenGLFunctions_4_0_CoreBackend*>(d);
238 d->refs.ref();
239
240 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_0_DeprecatedBackend::versionStatus());
241 d_1_0_Deprecated = static_cast<QOpenGLFunctions_1_0_DeprecatedBackend*>(d);
242 d->refs.ref();
243
244 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_1_DeprecatedBackend::versionStatus());
245 d_1_1_Deprecated = static_cast<QOpenGLFunctions_1_1_DeprecatedBackend*>(d);
246 d->refs.ref();
247
248 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_2_DeprecatedBackend::versionStatus());
249 d_1_2_Deprecated = static_cast<QOpenGLFunctions_1_2_DeprecatedBackend*>(d);
250 d->refs.ref();
251
252 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_3_DeprecatedBackend::versionStatus());
253 d_1_3_Deprecated = static_cast<QOpenGLFunctions_1_3_DeprecatedBackend*>(d);
254 d->refs.ref();
255
256 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_4_DeprecatedBackend::versionStatus());
257 d_1_4_Deprecated = static_cast<QOpenGLFunctions_1_4_DeprecatedBackend*>(d);
258 d->refs.ref();
259
260 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_3_3_DeprecatedBackend::versionStatus());
261 d_3_3_Deprecated = static_cast<QOpenGLFunctions_3_3_DeprecatedBackend*>(d);
262 d->refs.ref();
263
264 QAbstractOpenGLFunctions::initializeOpenGLFunctions();
265 }
266 return isInitialized();
267}
268
269bool QOpenGLFunctions_4_0_Compatibility::isContextCompatible(QOpenGLContext *context)
270{
271 Q_ASSERT(context);
272 QSurfaceFormat f = context->format();
273 const QPair<int, int> v = qMakePair(f.majorVersion(), f.minorVersion());
274 if (v < qMakePair(4, 0))
275 return false;
276
277 if (f.profile() == QSurfaceFormat::CoreProfile)
278 return false;
279
280 return true;
281}
282
283QOpenGLVersionProfile QOpenGLFunctions_4_0_Compatibility::versionProfile()
284{
285 QOpenGLVersionProfile v;
286 v.setVersion(4, 0);
287 v.setProfile(QSurfaceFormat::CompatibilityProfile);
288 return v;
289}
290
291QT_END_NAMESPACE
292