def checkForGLError(locationDescription): """OpenGL-specific routine for error check, report, and exit""" # normally (when no error) just return lastGlError = glGetError() if (lastGlError == GL_NO_ERROR): return # otherwise print vaguely descriptive error message, then exit if lastGlError==GL_INVALID_ENUM: errStr = "GL_INVALID_ENUM" elif lastGlError==GL_INVALID_VALUE: errStr = "GL_INVALID_VALUE" elif lastGlError==GL_INVALID_OPERATION: errStr = "GL_INVALID_OPERATION" elif lastGlError==GL_STACK_OVERFLOW: errStr = "GL_STACK_OVERFLOW" elif lastGlError==GL_STACK_UNDERFLOW: errStr = "GL_STACK_UNDERFLOW" elif lastGlError==GL_OUT_OF_MEMORY: errStr = "GL_OUT_OF_MEMORY" elif lastGlError==GL_TABLE_TOO_LARGE: errStr = "GL_TABLE_TOO_LARGE" if (locationDescription!=None & locationDescription!=""): ld = " in " +locationDescription else: ld = "" print "SteerTest: OpenGL error ", errStr, ld SteerTest.exit(1)
def displayFunc():
""" Main drawing function for SteerTest application,
drives simulation as a side effect"""
# clear color and depth buffers
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
# run simulation and draw associated graphics
SteerTest.updateSimulationAndRedraw ()
# draw text showing (smoothed, rounded) "frames per second" rate
#drawDisplayFPS ();
# draw the name of the selected PlugIn
drawDisplayPlugInName ()
# draw the name of the camera's current mode
drawDisplayCameraModeName ()
# draw crosshairs to indicate aimpoint (xxx for debugging only?)
drawReticle ()
# check for errors in drawing module, if so report and exit
# checkForDrawError ("SteerTest::updateSimulationAndRedraw")
# double buffering, swap back and front buffers
glFlush ()
glutSwapBuffers()
def checkForGLError(locationDescription):
"""OpenGL-specific routine for error check, report, and exit"""
# normally (when no error) just return
lastGlError = glGetError()
if (lastGlError == GL_NO_ERROR): return
# otherwise print vaguely descriptive error message, then exit
if lastGlError == GL_INVALID_ENUM:
errStr = "GL_INVALID_ENUM"
elif lastGlError == GL_INVALID_VALUE:
errStr = "GL_INVALID_VALUE"
elif lastGlError == GL_INVALID_OPERATION:
errStr = "GL_INVALID_OPERATION"
elif lastGlError == GL_STACK_OVERFLOW:
errStr = "GL_STACK_OVERFLOW"
elif lastGlError == GL_STACK_UNDERFLOW:
errStr = "GL_STACK_UNDERFLOW"
elif lastGlError == GL_OUT_OF_MEMORY:
errStr = "GL_OUT_OF_MEMORY"
elif lastGlError == GL_TABLE_TOO_LARGE:
errStr = "GL_TABLE_TOO_LARGE"
if (locationDescription != None & locationDescription != ""):
ld = " in " + locationDescription
else:
ld = ""
print "SteerTest: OpenGL error ", errStr, ld
SteerTest.exit(1)
def displayFunc():
""" Main drawing function for SteerTest application,
drives simulation as a side effect"""
# clear color and depth buffers
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
# run simulation and draw associated graphics
SteerTest.updateSimulationAndRedraw()
# draw text showing (smoothed, rounded) "frames per second" rate
#drawDisplayFPS ();
# draw the name of the selected PlugIn
drawDisplayPlugInName()
# draw the name of the camera's current mode
drawDisplayCameraModeName()
# draw crosshairs to indicate aimpoint (xxx for debugging only?)
drawReticle()
# check for errors in drawing module, if so report and exit
# checkForDrawError ("SteerTest::updateSimulationAndRedraw")
# double buffering, swap back and front buffers
glFlush()
glutSwapBuffers()
def drawCameraLookAtCheck (cameraPosition,pointToLookAt,up):
"""this comes up often enough to warrant its own warning function"""
view = pointToLookAt - cameraPosition
perp = view.perpendicularComponent (up)
# LP: is this a test for object equality or for containin data
if (perp == vector.zero):
SteerTest.printWarning ("LookAt: degenerate camera")
def drawCameraLookAtCheck(cameraPosition, pointToLookAt, up):
"""this comes up often enough to warrant its own warning function"""
view = pointToLookAt - cameraPosition
perp = view.perpendicularComponent(up)
# LP: is this a test for object equality or for containin data
if (perp == vector.zero):
SteerTest.printWarning("LookAt: degenerate camera")
def clockErrorExit(self):
SteerTest.errorExit("Problem reading system clock.\n")
def advanceSimulationTime(self, seconds):
if (seconds < 0):
SteerTest.errorExit("negative arg to advanceSimulationTime.")
else:
self.newAdvanceTime += seconds
def clockErrorExit(self):
SteerTest.errorExit("Problem reading system clock.\n")
def advanceSimulationTime(self, seconds):
if (seconds < 0):
SteerTest.errorExit("negative arg to advanceSimulationTime.")
else:
self.newAdvanceTime += seconds;
def warnIfInUpdatePhase2(name):
message= "use annotation (during simulation update, do not call %s)" % (name)
SteerTest.printWarning (message);
def warnIfInUpdatePhase2(name):
message = "use annotation (during simulation update, do not call %s)" % (
name)
SteerTest.printWarning(message)
