boytacean 0.12.1

A Game Boy emulator that is written in Rust.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

#!/usr/bin/python
# -*- coding: utf-8 -*-

"""
Frame-rate benchmark using upstream PyBoy 2.x, for side-by-side comparison.

Mirrors `pocket.py` but against the upstream `pyboy` 2.x package
instead of boytacean, so the two `Speedup:` numbers can be compared
on the same ROM and frame count. Uses the 2.x API surface
(`window=`, batched `tick(count, render=...)`, `cartridge_title`
attribute and `screen.image`), and runs on the modern Python builds
where `pyboy` ships prebuilt wheels. Saves a separate
`pocket_pyboy_v2.png` snapshot of the final frame.

Run from the project root with:
    python examples/python/pocket_pyboy_v2.py [rom.gb]

Requires: `pip install pyboy pillow`
"""

from os import getenv
from sys import argv
from time import time
from pyboy import PyBoy
from os.path import dirname, realpath, join, splitext, basename

CURRENT_DIR = dirname(realpath(__file__))
DEFAULT_ROM_PATH = join(CURRENT_DIR, "../../res/roms/demo/pocket.gb")
ROM_PATH = argv[1] if len(argv) > 1 else DEFAULT_ROM_PATH
ROM_NAME = splitext(basename(ROM_PATH))[0]
IMAGE_NAME = f"{ROM_NAME}_pyboy_v2.png"

FRAME_COUNT = 12000
VISUAL_FREQ = 59.7275
LOAD_GRAPHICS = bool(getenv("LOAD_GRAPHICS", True))

with PyBoy(
    ROM_PATH,
    window="SDL2" if LOAD_GRAPHICS else "null",
) as pyboy:
    pyboy.set_emulation_speed(0)
    print(pyboy.cartridge_title)
    start = time()
    pyboy.tick(count=FRAME_COUNT, render=LOAD_GRAPHICS)
    total = time() - start
    print(f"Time taken: {total:.2f} seconds")
    print(f"Speedup: {FRAME_COUNT / total / VISUAL_FREQ:.2f}x")
    image = pyboy.screen.image
    if image:
        image.save(IMAGE_NAME)