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Diffstat (limited to 'examples/opengl/threadedqopenglwidget/main.py')
-rw-r--r--examples/opengl/threadedqopenglwidget/main.py130
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diff --git a/examples/opengl/threadedqopenglwidget/main.py b/examples/opengl/threadedqopenglwidget/main.py
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+++ b/examples/opengl/threadedqopenglwidget/main.py
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+#############################################################################
+##
+## Copyright (C) 2022 The Qt Company Ltd.
+## Contact: http://www.qt.io/licensing/
+##
+## This file is part of the Qt for Python examples of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## You may use this file under the terms of the BSD license as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+## * Redistributions of source code must retain the above copyright
+## notice, this list of conditions and the following disclaimer.
+## * Redistributions in binary form must reproduce the above copyright
+## notice, this list of conditions and the following disclaimer in
+## the documentation and/or other materials provided with the
+## distribution.
+## * Neither the name of The Qt Company Ltd nor the names of its
+## contributors may be used to endorse or promote products derived
+## from this software without specific prior written permission.
+##
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+"""PySide6 port of the Threaded QOpenGLWidget Example from Qt v6.x"""
+
+import sys
+
+from argparse import ArgumentParser, RawTextHelpFormatter
+
+from PySide6.QtWidgets import QApplication, QMessageBox
+from PySide6.QtGui import QShortcut, QSurfaceFormat
+from PySide6.QtCore import QCoreApplication, QPoint, qVersion, Qt
+
+try:
+ from OpenGL import GL
+except ImportError:
+ app = QApplication(sys.argv)
+ message = "PyOpenGL must be installed to run this example."
+ message_box = QMessageBox(QMessageBox.Critical,
+ "Threaded QOpenGLWidget Example",
+ message, QMessageBox.Close)
+ detail = "Run:\npip install PyOpenGL PyOpenGL_accelerate"
+ message_box.setDetailedText(detail)
+ message_box.exec()
+ sys.exit(1)
+
+from glwidget import GLWidget
+from mainwindow import MainWindow
+
+
+if __name__ == "__main__":
+ app = QApplication(sys.argv)
+
+ desc = "Qt Threaded QOpenGLWidget Example"
+ parser = ArgumentParser(description=desc,
+ formatter_class=RawTextHelpFormatter)
+ parser.add_argument("--single", "-s", action="store_true",
+ help="Single thread")
+ options = parser.parse_args()
+
+ QCoreApplication.setApplicationName(desc)
+ QCoreApplication.setOrganizationName("QtProject")
+ QCoreApplication.setApplicationVersion(qVersion())
+
+ format = QSurfaceFormat()
+ format.setDepthBufferSize(16)
+ QSurfaceFormat.setDefaultFormat(format)
+
+ # Two top-level windows with two QOpenGLWidget children in each. The
+ # rendering for the four QOpenGLWidgets happens on four separate threads.
+
+ top_gl_widget = GLWidget()
+ pos = top_gl_widget.screen().availableGeometry().topLeft()
+ pos += QPoint(200, 200)
+ top_gl_widget.setWindowTitle(desc + " top level")
+ top_gl_widget.move(pos)
+ top_gl_widget.show()
+
+ functions = top_gl_widget.context().functions()
+ vendor = functions.glGetString(GL.GL_VENDOR)
+ renderer = functions.glGetString(GL.GL_RENDERER)
+ gl_info = f"{vendor}/f{renderer}"
+
+ supports_threading = ("nouveau" not in gl_info and "ANGLE" not in gl_info
+ and "llvmpipe" not in gl_info)
+ tool_tip = gl_info
+ if not supports_threading:
+ tool_tip += "\ndoes not support threaded OpenGL."
+ top_gl_widget.setToolTip(tool_tip)
+ print(tool_tip)
+
+ close_shortcut = QShortcut(Qt.CTRL | Qt.Key_Q, top_gl_widget)
+ close_shortcut.activated.connect(QApplication.closeAllWindows)
+ close_shortcut.setContext(Qt.ApplicationShortcut)
+
+ mw1 = None
+ mw2 = None
+
+ if not options.single and supports_threading:
+ pos += QPoint(100, 100)
+ mw1 = MainWindow()
+ mw1.setToolTip(tool_tip)
+ mw1.move(pos)
+ mw1.setWindowTitle(f"{desc} #1")
+ mw1.show()
+ pos += QPoint(100, 100)
+ mw2 = MainWindow()
+ mw2.setToolTip(tool_tip)
+ mw2.move(pos)
+ mw2.setWindowTitle(f"{desc} #2")
+ mw2.show()
+
+ sys.exit(app.exec())