Files
renderdoc/docs/python_api/examples/renderdoc/fetch_counters.py
T

108 lines
2.9 KiB
Python

import sys
# Import renderdoc if not already imported (e.g. in the UI)
if 'renderdoc' not in sys.modules and '_renderdoc' not in sys.modules:
import renderdoc
# Alias renderdoc for legibility
rd = renderdoc
draws = {}
# Define a recursive function for iterating over draws
def iterDraw(d, indent = ''):
global draws
# save the drawcall by eventId
draws[d.eventId] = d
# Iterate over the draw's children
for d in d.children:
iterDraw(d, indent + ' ')
def sampleCode(controller):
# Iterate over all of the root drawcalls, so we have names for each
# eventId
for d in controller.GetDrawcalls():
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 = draws[r.eventId]
# Only care about draws, not about clears and other misc events
if not (draw.flags & rd.DrawFlags.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.name))
def loadCapture(filename):
# Open a capture file handle
cap = rd.OpenCaptureFile()
# Open a particular file - see also OpenBuffer to load from memory
status = cap.OpenFile(filename, '', None)
# Make sure the file opened successfully
if status != rd.ReplayStatus.Succeeded:
raise RuntimeError("Couldn't open file: " + str(status))
# Make sure we can replay
if not cap.LocalReplaySupport():
raise RuntimeError("Capture cannot be replayed")
# Initialise the replay
status,controller = cap.OpenCapture(rd.ReplayOptions(), None)
if status != rd.ReplayStatus.Succeeded:
raise RuntimeError("Couldn't initialise replay: " + str(status))
return cap,controller
if 'pyrenderdoc' in globals():
pyrenderdoc.Replay().BlockInvoke(sampleCode)
else:
rd.InitialiseReplay(rd.GlobalEnvironment(), [])
if len(sys.argv) <= 1:
print('Usage: python3 {} filename.rdc'.format(sys.argv[0]))
sys.exit(0)
cap,controller = loadCapture(sys.argv[1])
sampleCode(controller)
controller.Shutdown()
cap.Shutdown()
rd.ShutdownReplay()