bool QOpenGLFunctions_1_0::initializeOpenGLFunctions() { if ( isInitialized() ) return true; QOpenGLContext* context = QOpenGLContext::currentContext(); // If owned by a context object make sure it is current. // Also check that current context is capable of resolving all needed functions if (((owningContext() && owningContext() == context) || !owningContext()) && QOpenGLFunctions_1_0::isContextCompatible(context)) { // Associate with private implementation, creating if necessary // Function pointers in the backends are resolved at creation time QOpenGLVersionFunctionsBackend* d = 0; d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_0_CoreBackend::versionStatus()); if (!d) { d = new QOpenGLFunctions_1_0_CoreBackend(context); QAbstractOpenGLFunctionsPrivate::insertFunctionsBackend(context, QOpenGLFunctions_1_0_CoreBackend::versionStatus(), d); } d_1_0_Core = static_cast<QOpenGLFunctions_1_0_CoreBackend*>(d); d->refs.ref(); d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_0_DeprecatedBackend::versionStatus()); if (!d) { d = new QOpenGLFunctions_1_0_DeprecatedBackend(context); QAbstractOpenGLFunctionsPrivate::insertFunctionsBackend(context, QOpenGLFunctions_1_0_DeprecatedBackend::versionStatus(), d); } d_1_0_Deprecated = static_cast<QOpenGLFunctions_1_0_DeprecatedBackend*>(d); d->refs.ref(); QAbstractOpenGLFunctions::initializeOpenGLFunctions(); } return isInitialized(); }
bool QOpenGLFunctions_ES2::initializeOpenGLFunctions() { if ( isInitialized() ) return true; QOpenGLContext* context = QOpenGLContext::currentContext(); // If owned by a context object make sure it is current. // Also check that current context is compatible if (((owningContext() && owningContext() == context) || !owningContext()) && QOpenGLFunctions_ES2::isContextCompatible(context)) { // Nothing to do, just flag that we are initialized QAbstractOpenGLFunctions::initializeOpenGLFunctions(); } return isInitialized(); }