def gl_context(self):
b = self._backing
if not b:
log("cannot get an OpenGL context: no backing defined")
return None
if not is_realized(b):
log.error("Error: OpenGL backing %s is not realized", b)
return None
w, h = self.size
if w<=0 or h<=0:
log.error("Error: invalid OpenGL backing size: %ix%i", w, h)
return None
try:
context = GtkGLExtContext(b)
except Exception as e:
log("gl_context()", exc_info=True)
log.error("Error: %s", e)
return None
log("%s.gl_context() GL Pixmap backing size: %d x %d, context=%s", self, w, h, context)
return context
def check_GL_support(widget, force_enable=False):
from xpra.client.gl.gtk_base.gtk_compat import GtkGLExtContext
with GtkGLExtContext(widget):
return check_PyOpenGL_support(force_enable)