Find GL leaks from a apitrace dump

README.md

Find leaks from a apitrace dump trace

1. Trace your program: apitrace trace python main.py
2. Dump the trace: apitrace dump python.2.7.trace > log
3. Check for leaks: python findleak.py log

findleak.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
-> No glDeleteRenderbuffers ?


https://gist.github.com/tito/1174b86ce126fd1ac11afbc77750d9ac

Find leaks from a apitrace dump trace

1. Trace your program: apitrace trace python main.py
2. Dump the trace: apitrace dump python.2.7.trace > log
3. Check for leaks: python findleak.py log

This is the fork I use on my Windows machine.
"""
from __future__ import print_function, unicode_literals

import sys
import re
from pprint import pprint
from io import open

state = {
    "textures": [],
    "framebuffers": [],
    "renderbuffers": [],
    "buffers": [],
    "programs": []
}
def processline(line):
    if not re.match("\d+ .*", line):
        return
    lineno, line = line.split(" ", 1)


    if line.startswith("glGenTextures("):
        gl_id = int(re.match(".*\(.*, textures = &(\d+)\)", line).group(1))
        state["textures"].append(gl_id)

    elif line.startswith("glGenFramebuffers("):
        gl_id = int(re.match(".*\(.*, framebuffers = &(\d+)\)", line).group(1))
        state["framebuffers"].append(gl_id)

    elif line.startswith("glGenRenderbuffers("):
        gl_id = int(re.match(".*\(.*, renderbuffers = &(\d+)\)", line).group(1))
        state["renderbuffers"].append(gl_id)

    elif line.startswith("glGenBuffers("):
        gl_id = int(re.match(".*\(.*, buffers = &(\d+)\)", line).group(1))
        state["buffers"].append(gl_id)

    elif line.startswith("glCreateProgram("):
        gl_id = int(re.match(".*\(\) = (\d+)", line).group(1))
        state["programs"].append(gl_id)

    elif line.startswith("glDeleteBuffers"):
        ids = re.match(".*\(.*, buffers = \{(.*)\}", line).group(1)
        ids = [int(x) for x in ids.split(", ")]
        for gl_id in ids:
            if gl_id not in state["buffers"]:
                print("Missing 'buffer' id {}".format(gl_id))
            else:
                index = state["buffers"].index(gl_id)
                state["buffers"].pop(index)

    elif line.startswith("glDeleteTextures"):
        ids = re.match(".*\(.*, textures = \{(.*)\}", line).group(1)
        ids = [int(x) for x in ids.split(", ")]
        for gl_id in ids:
            if gl_id not in state["textures"]:
                print("Missing 'texture' id {}".format(gl_id))
            else:
                index = state["textures"].index(gl_id)
                state["textures"].pop(index)

    elif line.startswith("glDeleteRenderbuffers"):
        ids = re.match(".*\(.*, renderbuffers = \{(.*)\}", line).group(1)
        ids = [int(x) for x in ids.split(", ")]
        for gl_id in ids:
            if gl_id not in state["renderbuffers"]:
                print("Missing 'renderbuffer' id {}".format(gl_id))
            else:
                index = state["renderbuffers"].index(gl_id)
                state["renderbuffers"].pop(index)

    elif line.startswith("glDeleteFramebuffers"):
        ids = re.match(".*\(.*, framebuffers = \{(.*)\}", line).group(1)
        ids = [int(x) for x in ids.split(", ")]
        for gl_id in ids:
            if gl_id not in state["framebuffers"]:
                print("Missing 'framebuffer' id {}".format(gl_id))
            else:
                index = state["framebuffers"].index(gl_id)
                state["framebuffers"].pop(index)

    elif line.startswith("glDeleteProgram"):
        gl_id = int(re.match(".*\(program = (\d+)", line).group(1))
        if gl_id not in state["programs"]:
            print("Missing 'program' id {}".format(gl_id))
        else:
            index = state["programs"].index(gl_id)
            state["programs"].pop(index)


if __name__ == "__main__":
    with open(sys.argv[1], encoding='UTF-16LE') as fd:
        for line in fd.readlines():
            processline(line.strip())

    for key, values in state.items():
        print("{}: {}".format(key, values))