ascii mapper for shadertoy keyboard/font demo

ascii_to_keycode_map.py

#!/usr/bin/env python3

# For https://www.shadertoy.com/view/XlGfzt

maps = [0] * 256
shifts = [False] * 256

#arrows
for i in range(16,20):
  maps[i] = i+21

#space
maps[ord(' ')] = 32

# !
maps[ord('!')] = 49
shifts[ord('!')] = True

# "
maps[ord('"')] = 222 # apostrophe
shifts[ord('"')] = True

# #
maps[ord('#')] = 51
shifts[ord('#')] = True

# $
maps[ord('$')] = 52
shifts[ord('$')] = True

# %
maps[ord('%')] = 53
shifts[ord('%')] = True

# &
maps[ord('&')] = 55
shifts[ord('&')] = True

# '
maps[ord('\'')] = 222
shifts[ord('\'')] = False

# (
maps[ord('(')] = 57
shifts[ord('(')] = True

# )
maps[ord(')')] = 48
shifts[ord(')')] = True

# *
maps[ord('*')] = 56
shifts[ord('*')] = True

# +
maps[ord('+')] = 187
shifts[ord('+')] = True

# ,
maps[ord(',')] = 188
shifts[ord(',')] = True

# -
maps[ord('-')] = 189
shifts[ord('-')] = False

# .
maps[ord('.')] = 190
shifts[ord('.')] = False

# /
maps[ord('/')] = 191
shifts[ord('/')] = False

# 0
maps[ord('0')] = 48
shifts[ord('0')] = False

# 1-9
for i in range(49,58):
  maps[i] = i
  shifts[i] = False

# :
maps[ord(':')] = 186
shifts[ord(':')] = True

# ;
maps[ord(';')] = 186
shifts[ord(';')] = False

# <
maps[ord('<')] = 188
shifts[ord('<')] = True

# =
maps[ord('=')] = 187
shifts[ord('=')] = False

# >
maps[ord('>')] = 190
shifts[ord('>')] = True

# ?
maps[ord('?')] = 191
shifts[ord('?')] = True

# @
maps[ord('@')] = 50
shifts[ord('@')] = True

# A-Z
for i in range(65,91):
  maps[i] = i
  shifts[i] = True

# [
maps[ord('[')] = 219
shifts[ord('[')] = False

# \
maps[ord('\\')] = 220
shifts[ord('\\')] = False

# ]
maps[ord(']')] = 221
shifts[ord(']')] = False

# ^
maps[ord('^')] = 54
shifts[ord('^')] = True

# _
maps[ord('_')] = 189
shifts[ord('_')] = True

# `
maps[ord('`')] = 192
shifts[ord('`')] = False

# a-z
for i in range(97,123):
  maps[i] = i-32
  shifts[i] = False

# {
maps[ord('{')] = 219
shifts[ord('{')] = True

# |
maps[ord('|')] = 220
shifts[ord('|')] = True

# }
maps[ord('}')] = 221
shifts[ord('}')] = True

# ~
maps[ord('}')] = 192
shifts[ord('}')] = True

# Shift
maps[167] = 16 ##
shifts[167] = False

# Backspace
maps[2] = 46 ## "Backward play symbol"
shifts[2] = False

# Del
maps[5] = 8 ## "Forward play symbol"
shifts[5] = False

# Tab
maps[20] = 9 ## "double-ended Left/right arrow"
shifts[20] = False

# Enter
maps[182] = 13 ## "Paragraph symbol
shifts[182] = False

# Ctrl
maps[199] = 17 # Diacritical C
shifts[199] = False

# LEFT Alt
maps[192] = 91 # Diacritical A
shifts[192] = False

# RIGHT Alt
maps[193] = 93 # Diacritical A
shifts[193] = False

# Esc
maps[200] = 27 # Diacritical E
shifts[200] = False

# PgUp
maps[0] = 33 # Previous Track
shifts[0] = False

# PgDn
maps[8] = 34 # Next Track
shifts[8] = False

# End
maps[187] = 35 # fast fwd
shifts[187] = False

# Home
maps[171] = 36 # fast rev
shifts[171] = False

comments = {}
comments[0] = '0: Prev Track'
comments[16] = '16: left arrow'
comments[32] = '32: space'
comments[48] = '48: 0'
comments[64] = '64: @'
comments[80] = '80: P'
comments[96] = '96: `'
comments[112] = '112: p'
comments[128] = '128: alpha'
comments[144] = '144: GAMMA'
comments[160] = '160: undefined?'
comments[176] = '176: degree?'
comments[192] = '192: Diacritical A'
comments[208] = '208: Diacritical D'
comments[224] = '224: Diacritical a'
comments[240] = '240: Diacritical delta'

print('uint ascii_to_keycode_map[64] = uint[64](')
for i in range(0,256,4):
  if i in comments:
    print('\t//', comments[i])
  if i%16 == 0:
    print('\t', end='')
  val = (maps[i]<<24) | (maps[i+1]<<16) | (maps[i+2]<<8) | (maps[i+3])
  print(str.format('0x%08Xu' % val), end='')
  if(i != 252):
    print(', ', end='')
  if i%16 == 12:
    print('')
print(');\n')

print('uint ascii_to_keycode_shift_map[8] = uint[8](')
for i in range(0,256,32):
  if i in comments:
    print('\t//', comments[i])
  print('\t', end='')
  val = 0
  for j in range(32):
    val <<= 1
    if shifts[i+j]:
      val += 1
  print(str.format('0x%08Xu' % val), end='')
  if(i != 224):
    print(',', end='')
  print()
print(');')