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// This contains the support for QOpenGLContext.versionFunctions().
//
// Copyright (c) 2018 Riverbank Computing Limited <info@riverbankcomputing.com>
//
// This file is part of PyQt5.
//
// This file may be used under the terms of the GNU General Public License
// version 3.0 as published by the Free Software Foundation and appearing in
// the file LICENSE included in the packaging of this file. Please review the
// following information to ensure the GNU General Public License version 3.0
// requirements will be met: http://www.gnu.org/copyleft/gpl.html.
//
// If you do not wish to use this file under the terms of the GPL version 3.0
// then you may purchase a commercial license. For more information contact
// info@riverbankcomputing.com.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#include <Python.h>
#include "sipAPIQtGui.h"
#if defined(SIP_FEATURE_PyQt_OpenGL)
#include <QtGlobal>
#if QT_VERSION >= 0x050100
#include <QList>
#include "qpyopengl_api.h"
// Forward declarations.
int qpyopengl_add_constants(PyObject *obj);
// The cache of type objects corresponding to each set of functions.
static QList<PyTypeObject *> funcs_types;
PyObject *qpyopengl_version_functions(const QOpenGLContext *context,
PyObject *py_context, const QOpenGLVersionProfile *version_profile)
{
// Get a valid version profile.
QOpenGLVersionProfile vp;
if (version_profile && version_profile->isValid())
vp = *version_profile;
else
vp = QOpenGLVersionProfile(context->format());
// Create the functions.
QAbstractOpenGLFunctions *funcs = context->versionFunctions(vp);
if (!funcs)
{
Py_INCREF(Py_None);
return Py_None;
}
// Qt doesn't allow us to introspect the functions to find which set we
// have, so work out what it should be based on the version profile.
#if defined(QT_OPENGL_ES_2)
QByteArray name("QOpenGLFunctions_ES2");
#else
QByteArray name("QOpenGLFunctions_");
QPair<int, int> version = vp.version();
name.append(QByteArray::number(version.first));
name.append('_');
name.append(QByteArray::number(version.second));
if (vp.hasProfiles())
{
switch (vp.profile())
{
case QSurfaceFormat::CoreProfile:
name.append("_Core");
break;
case QSurfaceFormat::CompatibilityProfile:
name.append("_Compatibility");
break;
default:
;
}
}
#endif
// See if we already have the type object.
PyTypeObject *funcs_type = 0;
for (int i = 0; i < funcs_types.count(); ++i)
{
PyTypeObject *ft = funcs_types.at(i);
if (name == sipPyTypeName(ft))
{
funcs_type = ft;
break;
}
}
if (!funcs_type)
{
// Get the type object.
QByteArray module_name("PyQt5._");
module_name.append(name);
PyObject *module = PyImport_ImportModule(module_name.constData());
if (!module)
return 0;
PyObject *obj = PyObject_GetAttrString(module, name.constData());
Py_DECREF(module);
if (!obj)
return 0;
// Sanity check the type object.
if (PyObject_IsSubclass(obj, (PyObject *)sipTypeAsPyTypeObject(sipType_QAbstractOpenGLFunctions)) <= 0)
{
Py_DECREF(obj);
PyErr_Format(PyExc_TypeError, "%s.%s has an unexpected type",
module_name.constData(), name.constData());
return 0;
}
// Populate the type with the OpenGL constants.
if (qpyopengl_add_constants(obj) < 0)
{
Py_DECREF(obj);
return 0;
}
// Cache the type object.
funcs_type = (PyTypeObject *)obj;
funcs_types.append(funcs_type);
}
// Ownership is with the context.
return sipConvertFromNewType(funcs, sipTypeFromPyTypeObject(funcs_type),
py_context);
}
#endif
#endif
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