move to a static file model instead of a webserver
Haldean Brown
3 years ago
| 0 | 0 | import anims |
| 1 | 1 | import argparse |
| 2 | 2 | import img |
| 3 | import os | |
| 3 | 4 | import requests |
| 4 | 5 | import screen |
| 5 | 6 | |
| 15 | 16 | "--anim", default=None, help="set screen to an animation") |
| 16 | 17 | p.add_argument( |
| 17 | 18 | "--brightness", type=int, default=255, help="set screen brightness") |
| 19 | p.add_argument( | |
| 20 | "--redir", default=None, help="set screen to redirect to this screen") | |
| 21 | p.add_argument( | |
| 22 | "--webroot", required=True, help="set webroot of bitpic server on localhost") | |
| 23 | ||
| 18 | 24 | args = p.parse_args() |
| 19 | ||
| 20 | url = "http://{}/set/{}".format(screen.HOST, args.screen) | |
| 25 | fname = os.path.join(args.webroot, args.screen) | |
| 21 | 26 | |
| 22 | 27 | if args.image: |
| 23 | 28 | print("setting to image {}".format(args.image)) |
| 24 | 29 | s = img.image_to_screen(args.image, args.brightness) |
| 25 | requests.post(url, data={"data": s.encode()}) | |
| 30 | with open(fname, 'w') as f: | |
| 31 | f.write(s.encode()) | |
| 26 | 32 | elif args.solid: |
| 27 | 33 | print("setting solid color rgb({})".format(args.solid)) |
| 28 | 34 | c = [int(x) for x in args.solid.split(',')] |
| 29 | 35 | s = screen.Screen([[c for _ in range(8)] for _ in range(8)], args.brightness) |
| 30 | requests.post(url, data={"data": s.encode()}) | |
| 36 | with open(fname, 'w') as f: | |
| 37 | f.write(s.encode()) | |
| 31 | 38 | elif args.anim: |
| 32 | 39 | print("setting animation {}".format(args.anim)) |
| 33 | requests.post(url, data={"data": anims.encode(args.anim, args.brightness)}) | |
| 40 | a = anims.encode(args.anim, args.brightness) | |
| 41 | with open(fname, 'w') as f: | |
| 42 | f.write(a) | |
| 43 | elif args.redir: | |
| 44 | print("redirecting {} to {}".format(args.screen, args.redir)) | |
| 45 | with open(fname, 'w') as f: | |
| 46 | f.write("redir/{}".format(args.redir)) | |
| 34 | 47 | else: |
| 35 | print("setting brightness to {}".format(args.brightness)) | |
| 36 | requests.post("http://{}/set_brightness/{}".format(screen.HOST, args.screen), data={"brightness": args.brightness}) | |
| 48 | print("no operation given") | |
| 13 | 13 | import numpy as np |
| 14 | 14 | import requests |
| 15 | 15 | import screen |
| 16 | from screen import Screen | |
| 16 | 17 | import time |
| 17 | ||
| 18 | try: | |
| 19 | with open("sid.txt") as sid_f: | |
| 20 | SID = sid_f.read().strip() | |
| 21 | except IOError: | |
| 22 | SID = screen.DEFAULT_SID | |
| 23 | URL = "http://{}/get/{}".format(screen.HOST, SID) | |
| 24 | 18 | |
| 25 | 19 | |
| 26 | 20 | class SerialError(Exception): |
| 38 | 32 | |
| 39 | 33 | class Bitpic: |
| 40 | 34 | def __init__(self): |
| 35 | self._sid = None | |
| 36 | print("starting bitpic with screen ID {}".format(self.sid)) | |
| 41 | 37 | self.current_screen = None |
| 42 | 38 | self.current_anim = None |
| 43 | 39 | self.last_anim_check = None |
| 121 | 117 | return animtype(anims.KCS) |
| 122 | 118 | return None |
| 123 | 119 | |
| 124 | def loop(self): | |
| 125 | now = datetime.now() | |
| 126 | time_check = (self.last_anim_check is None or | |
| 127 | now - self.last_anim_check > timedelta(seconds=5)) | |
| 128 | if time_check or self.current_anim is None: | |
| 120 | @property | |
| 121 | def sid(self): | |
| 122 | if self._sid is not None: | |
| 123 | return self._sid | |
| 124 | try: | |
| 125 | with open("sid.txt") as sid_f: | |
| 126 | self._sid = sid_f.read().strip() | |
| 127 | return self._sid | |
| 128 | except IOError: | |
| 129 | return screen.DEFAULT_SID | |
| 130 | ||
| 131 | def load(self, sid=None): | |
| 132 | if sid is None: | |
| 133 | sid = self.sid | |
| 134 | while True: | |
| 135 | url = "http://{}/{}".format(screen.HOST, sid) | |
| 129 | 136 | try: |
| 130 | res = requests.get(URL).text | |
| 131 | self.last_anim_check = now | |
| 132 | except requests.ConnectionError: | |
| 133 | print("failed to connect, sleeping 10s before retry") | |
| 137 | res = requests.get(url).text | |
| 138 | self.last_anim_check = datetime.now() | |
| 139 | except requests.ConnectionError as e: | |
| 140 | print("failed to fetch, sleeping 10s before retry: {}".format(e)) | |
| 134 | 141 | time.sleep(10) |
| 135 | return | |
| 142 | continue | |
| 136 | 143 | if res.startswith("anim/"): |
| 137 | 144 | self.current_anim = anims.get(self.current_anim, res) |
| 145 | return None | |
| 146 | elif res.startswith("redir/"): | |
| 147 | sid = res.split('/')[1] | |
| 148 | continue | |
| 138 | 149 | else: |
| 150 | try: | |
| 151 | return Screen.decode(res) | |
| 152 | except ValueError as e: | |
| 153 | print("failed to load screen: {}".format(e)) | |
| 154 | return None | |
| 155 | ||
| 156 | def loop(self): | |
| 157 | time_check = (self.last_anim_check is None or | |
| 158 | datetime.now() - self.last_anim_check > timedelta(seconds=5)) | |
| 159 | if time_check or self.current_anim is None: | |
| 160 | new_screen = self.load() | |
| 161 | if new_screen is not None: | |
| 139 | 162 | self.current_anim = None |
| 140 | new_screen = screen.Screen.decode(res) | |
| 141 | 163 | if new_screen != self.current_screen: |
| 142 | 164 | self.fade_between(self.current_screen, new_screen) |
| 143 | 165 | self.current_screen = new_screen |
| 150 | 172 | # if we get here, we either didn't check for new data and are in an |
| 151 | 173 | # animation, or we did check for new data and found out we're in |
| 152 | 174 | # an animation. |
| 153 | new_screen = self.current_anim.get_screen() | |
| 154 | self.write_screen(new_screen) | |
| 175 | anim_screen = self.current_anim.get_screen() | |
| 176 | self.write_screen(anim_screen) | |
| 155 | 177 | time.sleep(self.current_anim.desired_frame_time) |
| 156 | 178 | |
| 157 | 179 | def main(self): |
| 166 | 188 | self.led.push_to_driver() |
| 167 | 189 | |
| 168 | 190 | if __name__ == "__main__": |
| 169 | print("starting bitpic with screen ID {}".format(SID)) | |
| 170 | 191 | bp = Bitpic() |
| 171 | 192 | bp.main() |
| 0 | 0 | DEFAULT_SID = "__default" |
| 1 | HOST = "localhost:5000" | |
| 1 | HOST = "localhost:80" | |
| 2 | 2 | |
| 3 | 3 | class Screen: |
| 4 | 4 | DATA_VERSION = 0 |
| 34 | 34 | |
| 35 | 35 | @classmethod |
| 36 | 36 | def decode(cls, screenstr): |
| 37 | screenstr = screenstr.strip() | |
| 37 | 38 | if len(screenstr) != cls.DATA_LENGTH_BYTES: |
| 38 | raise ValueError("bad screenstr length") | |
| 39 | raise ValueError("bad screenstr length {}: {}".format(len(screenstr), screenstr)) | |
| 39 | 40 | data_bits = screenstr.split('/') |
| 40 | 41 | if len(data_bits) != 3: |
| 41 | 42 | raise ValueError("bad screenstr format: wrong number of /'s") |
| 0 | import flask | |
| 1 | import img | |
| 2 | import io | |
| 3 | import pprint | |
| 4 | import screen | |
| 5 | from screen import Screen | |
| 6 | ||
| 7 | app = flask.Flask(__name__) | |
| 8 | ||
| 9 | screens = { | |
| 10 | screen.DEFAULT_SID: Screen( | |
| 11 | [[(0, 0, 0) for _ in range(Screen.W)] for _ in range(Screen.H)], 255).encode() | |
| 12 | } | |
| 13 | ||
| 14 | def get_real_sid(sid): | |
| 15 | if sid in screens: | |
| 16 | return sid | |
| 17 | return screen.DEFAULT_SID | |
| 18 | ||
| 19 | @app.route("/get/<sid>") | |
| 20 | def get(sid): | |
| 21 | return screens[get_real_sid(sid)] | |
| 22 | ||
| 23 | @app.route("/view/<sid>") | |
| 24 | def view(sid): | |
| 25 | s = Screen.decode(screens[get_real_sid(sid)]) | |
| 26 | imgfile = io.BytesIO() | |
| 27 | image = img.screen_to_image(s, imgfile) | |
| 28 | imgfile.seek(0) | |
| 29 | return flask.send_file(imgfile, mimetype="image/png") | |
| 30 | ||
| 31 | @app.route("/set/<sid>", methods=["POST"]) | |
| 32 | def set(sid): | |
| 33 | encoded = flask.request.form["data"] | |
| 34 | print("received new image for {}: {}".format(sid, encoded)) | |
| 35 | screens[sid] = encoded | |
| 36 | return flask.url_for("get", sid=sid) | |
| 37 | ||
| 38 | @app.route("/set_brightness/<sid>", methods=["POST"]) | |
| 39 | def set_brightness(sid): | |
| 40 | if sid in screens: | |
| 41 | screens[sid].brightness = int(flask.request.form["brightness"]) | |
| 42 | return flask.url_for("get", sid=sid) |