bad apple: increase frame rate to 7 FPS. now running at actual speed.

	override arch_drivers += spi,timer

	override drivers += sharp96

	override CONFIG_lib_inflate = y

	override CONFIG_lib_inflate_lut = y

endif

#!/bin/sh

# ./convert.sh <file> -r <frame rate> [additional ffmpeg args]

set -eu

mkdir -p tmp

ffmpeg -i "$@" tmp/frame%4d.png

parallel mogrify -resize 96x96 -threshold 50% -- tmp/*.png

echo "const unsigned char frame_rate = $3;" > frames.cc

./frames-to-cc tmp/*.png >> frames.cc

rm -rf tmp

#!/usr/bin/env python3

from PIL import Image

import sys

import zlib

def load_image(filename):

    im = Image.open(filename)

    w, h = im.size

    buf = [0 for i in range(w * h // 8)]

    for y in range(h):

        for x in range(w):

            if im.getpixel((x, y)):

                buf[y * 12 + x // 8] |= 1 << (7 - (x % 8))

    return buf

for i in range(1, len(sys.argv) - 2, 3):

    buf = (

        load_image(sys.argv[i])

        + load_image(sys.argv[i + 1])

        + load_image(sys.argv[i + 2])

    )

    c_buf = ",".join(map(str, buf))

    z_buf = zlib.compress(bytes(buf), 9)

    z_buf = z_buf[2:-4]

    out_buf = ",".join(map(str, z_buf))

    print(

        f'__attribute__((section(".text"))) unsigned char const frame{i:04d}[] = {{ {out_buf} }};'

    )

frames = list()

for i in range(1, len(sys.argv) - 2, 3):

    frames.append(f"(unsigned char*)frame{i:04d}")

prefix = "unsigned char* const frames[] = {"

postfix = "};"

print(prefix + ", ".join(frames) + postfix)