Function sampleCode

docs/python_api/examples/renderdoc/fetch_counters.py:23–65

(controller)

		iterDraw(d, indent + '    ')

def sampleCode(controller):
	# Iterate over all of the root actions, so we have names for each
	# eventId
	for d in controller.GetRootActions():
		iterDraw(d)

	# Enumerate the available counters
	counters = controller.EnumerateCounters()

	if not (rd.GPUCounter.SamplesPassed in counters):
		raise RuntimeError("Implementation doesn't support Samples Passed counter")

	# Now we fetch the counter data, this is a good time to batch requests of as many
	# counters as possible, the implementation handles any book keeping.
	results = controller.FetchCounters([rd.GPUCounter.SamplesPassed])

	# Get the description for the counter we want
	samplesPassedDesc = controller.DescribeCounter(rd.GPUCounter.SamplesPassed)

	# Describe each counter
	for c in counters:
		desc = controller.DescribeCounter(c)

		print("Counter %d (%s):" % (c, desc.name))
		print("    %s" % desc.description)
		print("    Returns %d byte %s, representing %s" % (desc.resultByteWidth, desc.resultType, desc.unit))

	# Look in the results for any draws with 0 samples written - this is an indication
	# that if a lot of draws appear then culling could be better.
	for r in results:
		draw = actions[r.eventId]

		# Only care about draws, not about clears and other misc events
		if not (draw.flags & rd.ActionFlags.Drawcall):
			continue

		if samplesPassedDesc.resultByteWidth == 4:
			val = r.value.u32
		else:
			val = r.value.u64

		if val == 0:
			print("EID %d '%s' had no samples pass depth/stencil test!" % (r.eventId, draw.GetName(controller.GetStructuredFile())))

def loadCapture(filename):
	# Open a capture file handle