def setContext(cls,
major_version: int,
minor_version: int,
core=False,
profile=None):
"""Set OpenGL context, given major, minor version + core using QOpenGLContext
Unfortunately, what you get back does not have to be the requested version.
"""
new_format = QSurfaceFormat()
new_format.setMajorVersion(major_version)
new_format.setMinorVersion(minor_version)
if core:
profile_ = QSurfaceFormat.CoreProfile
else:
profile_ = QSurfaceFormat.CompatibilityProfile
if profile is not None:
profile_ = profile
new_format.setProfile(profile_)
new_context = QOpenGLContext()
new_context.setFormat(new_format)
success = new_context.create()
if success:
return new_context
else:
Logger.log(
"e", "Failed creating OpenGL context (%d, %d, core=%s)" %
(major_version, minor_version, core))
return None
def setDefaultFormat(cls,
major_version: int,
minor_version: int,
core=False,
profile=None) -> None:
"""Set the default format for each new OpenGL context
:param major_version:
:param minor_version:
:param core: (optional) True for QSurfaceFormat.CoreProfile, False for CompatibilityProfile
:param profile: (optional) QSurfaceFormat.CoreProfile, CompatibilityProfile or NoProfile, overrules option core
"""
new_format = QSurfaceFormat()
new_format.setMajorVersion(major_version)
new_format.setMinorVersion(minor_version)
if core:
profile_ = QSurfaceFormat.CoreProfile
else:
profile_ = QSurfaceFormat.CompatibilityProfile
if profile is not None:
profile_ = profile
new_format.setProfile(profile_)
QSurfaceFormat.setDefaultFormat(new_format)
cls.major_version = major_version
cls.minor_version = minor_version
cls.profile = profile_
def setContext(cls,
major_version: int,
minor_version: int,
core=False,
profile=None):
new_format = QSurfaceFormat()
new_format.setMajorVersion(major_version)
new_format.setMinorVersion(minor_version)
if core:
profile_ = QSurfaceFormat.CoreProfile
else:
profile_ = QSurfaceFormat.CompatibilityProfile
if profile is not None:
profile_ = profile
new_format.setProfile(profile_)
new_context = QOpenGLContext()
new_context.setFormat(new_format)
success = new_context.create()
if success:
return new_context
else:
Logger.log(
"e", "Failed creating OpenGL context (%d, %d, core=%s)" %
(major_version, minor_version, core))
return None
def setDefaultFormat(cls, major_version, minor_version, core = False, profile = None):
new_format = QSurfaceFormat()
new_format.setMajorVersion(major_version)
new_format.setMinorVersion(minor_version)
if core:
profile_ = QSurfaceFormat.CoreProfile
else:
profile_ = QSurfaceFormat.CompatibilityProfile
if profile is not None:
profile_ = profile
new_format.setProfile(profile_)
QSurfaceFormat.setDefaultFormat(new_format)
cls.major_version = major_version
cls.minor_version = minor_version
cls.profile = profile_
def setDefaultFormat(cls, major_version, minor_version, core = False, profile = None):
new_format = QSurfaceFormat()
new_format.setMajorVersion(major_version)
new_format.setMinorVersion(minor_version)
if core:
profile_ = QSurfaceFormat.CoreProfile
else:
profile_ = QSurfaceFormat.CompatibilityProfile
if profile is not None:
profile_ = profile
new_format.setProfile(profile_)
QSurfaceFormat.setDefaultFormat(new_format)
cls.major_version = major_version
cls.minor_version = minor_version
cls.profile = profile_
def setContext(cls, major_version, minor_version, core = False, profile = None):
new_format = QSurfaceFormat()
new_format.setMajorVersion(major_version)
new_format.setMinorVersion(minor_version)
if core:
profile_ = QSurfaceFormat.CoreProfile
else:
profile_ = QSurfaceFormat.CompatibilityProfile
if profile is not None:
profile_ = profile
new_format.setProfile(profile_)
new_context = QOpenGLContext()
new_context.setFormat(new_format)
success = new_context.create()
if success:
return new_context
else:
Logger.log("e", "Failed creating OpenGL context (%d, %d, core=%s)" % (major_version, minor_version, core))
return None
def detectBestOpenGLVersion(cls):
Logger.log("d", "Trying OpenGL context 4.1...")
ctx = cls.setContext(4, 1, core=True)
if ctx is not None:
fmt = ctx.format()
profile = fmt.profile()
# First test: we hope for this
if ((fmt.majorVersion() == 4 and fmt.minorVersion() >= 1) or
(fmt.majorVersion() >
4)) and profile == QSurfaceFormat.CoreProfile:
Logger.log(
"d", "Yay, we got at least OpenGL 4.1 core: %s",
cls.versionAsText(fmt.majorVersion(), fmt.minorVersion(),
profile))
# https://riverbankcomputing.com/pipermail/pyqt/2017-January/038640.html
# PyQt currently only implements 2.0, 2.1 and 4.1Core
# If eg 4.5Core would be detected and used here, PyQt would not be able to handle it.
major_version = 4
minor_version = 1
# CURA-6092: Check if we're not using software backed 4.1 context; A software 4.1 context
# is much slower than a hardware backed 2.0 context
gl_window = QWindow()
gl_window.setSurfaceType(QWindow.OpenGLSurface)
gl_window.showMinimized()
gl_format = QSurfaceFormat()
gl_format.setMajorVersion(major_version)
gl_format.setMinorVersion(minor_version)
gl_format.setProfile(profile)
gl_context = QOpenGLContext()
gl_context.setFormat(gl_format)
gl_context.create()
gl_context.makeCurrent(gl_window)
gl_profile = QOpenGLVersionProfile()
gl_profile.setVersion(major_version, minor_version)
gl_profile.setProfile(profile)
gl = gl_context.versionFunctions(
gl_profile
) # type: Any #It's actually a protected class in PyQt that depends on the requested profile and the implementation of your graphics card.
gpu_type = "Unknown" # type: str
result = None
if gl:
result = gl.initializeOpenGLFunctions()
if not result:
Logger.log("e",
"Could not initialize OpenGL to get gpu type")
else:
# WORKAROUND: Cura/#1117 Cura-packaging/12
# Some Intel GPU chipsets return a string, which is not undecodable via PyQt5.
# This workaround makes the code fall back to a "Unknown" renderer in these cases.
try:
gpu_type = gl.glGetString(gl.GL_RENDERER) #type: str
except UnicodeDecodeError:
Logger.log(
"e",
"DecodeError while getting GL_RENDERER via glGetString!"
)
Logger.log("d",
"OpenGL renderer type for this OpenGL version: %s",
gpu_type)
if "software" in gpu_type.lower():
Logger.log(
"w",
"Unfortunately OpenGL 4.1 uses software rendering")
else:
return major_version, minor_version, QSurfaceFormat.CoreProfile
else:
Logger.log("d", "Failed to create OpenGL context 4.1.")
# Fallback: check min spec
Logger.log("d", "Trying OpenGL context 2.0...")
ctx = cls.setContext(2, 0, profile=QSurfaceFormat.NoProfile)
if ctx is not None:
fmt = ctx.format()
profile = fmt.profile()
if fmt.majorVersion() >= 2 and fmt.minorVersion() >= 0:
Logger.log(
"d", "We got at least OpenGL context 2.0: %s",
cls.versionAsText(fmt.majorVersion(), fmt.minorVersion(),
profile))
return 2, 0, QSurfaceFormat.NoProfile
else:
Logger.log(
"d", "Current OpenGL context is too low: %s" %
cls.versionAsText(fmt.majorVersion(), fmt.minorVersion(),
profile))
return None, None, None
else:
Logger.log("d", "Failed to create OpenGL context 2.0.")
return None, None, None
self.translate = False
def wheelEvent(self,event) :
numPixels = event.pixelDelta();
if numPixels.x() > 0 :
self.modelPos.m_z += self.ZOOM
elif numPixels.x() < 0 :
self.modelPos.m_z -= self.ZOOM
self.update();
if __name__ == '__main__':
app = QApplication(sys.argv)
format=QSurfaceFormat()
format.setSamples(4);
format.setMajorVersion(4);
format.setMinorVersion(1);
format.setProfile(QSurfaceFormat.CoreProfile);
# now set the depth buffer to 24 bits
format.setDepthBufferSize(24);
# set that as the default format for all windows
QSurfaceFormat.setDefaultFormat(format);
window = MainWindow()
window.setFormat(format)
window.resize(1024,720)
window.show()
sys.exit(app.exec_())
self.translate = False
def wheelEvent(self,event) :
numPixels = event.pixelDelta();
if numPixels.x() > 0 :
self.modelPos.m_z += self.ZOOM
elif numPixels.x() < 0 :
self.modelPos.m_z -= self.ZOOM
self.update();
if __name__ == '__main__':
app = QApplication(sys.argv)
format=QSurfaceFormat()
format.setSamples(4);
format.setMajorVersion(4);
format.setMinorVersion(1);
format.setProfile(QSurfaceFormat.CoreProfile);
# now set the depth buffer to 24 bits
format.setDepthBufferSize(24);
# set that as the default format for all windows
QSurfaceFormat.setDefaultFormat(format);
window = MainWindow()
window.setFormat(format)
window.resize(1024,720)
window.show()
sys.exit(app.exec_())
