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  1. /*
  2. * This file is part of Aptdec.
  3. * Copyright (c) 2004-2009 Thierry Leconte (F4DWV), Xerbo (xerbo@protonmail.com) 2019-2020
  4. *
  5. * Aptdec is free software: you can redistribute it and/or modify
  6. * it under the terms of the GNU General Public License as published by
  7. * the Free Software Foundation, either version 2 of the License, or
  8. * (at your option) any later version.
  9. *
  10. * This program is distributed in the hope that it will be useful,
  11. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13. * GNU General Public License for more details.
  14. *
  15. * You should have received a copy of the GNU General Public License
  16. * along with this program. If not, see <https://www.gnu.org/licenses/>.
  17. *
  18. */
  19. #include "common.h"
  20. #define MCOMPOSITE(m1, a1, m2, a2) (m1*a1 + m2*a2*(1-a1))
  21. rgb_t applyPalette(char *palette, int val){
  22. return (rgb_t){
  23. palette[(int)CLIP(val, 0, 255)*3 + 0],
  24. palette[(int)CLIP(val, 0, 255)*3 + 1],
  25. palette[(int)CLIP(val, 0, 255)*3 + 2]
  26. };
  27. }
  28. rgb_t RGBcomposite(rgb_t top, float top_a, rgb_t bottom, float bottom_a){
  29. return (rgb_t){
  30. MCOMPOSITE(top.r, top_a, bottom.r, bottom_a),
  31. MCOMPOSITE(top.g, top_a, bottom.g, bottom_a),
  32. MCOMPOSITE(top.b, top_a, bottom.b, bottom_a)
  33. };
  34. }
  35. // The "I totally didn't just steal this from WXtoImg" palette
  36. char TempPalette[256*3] = {
  37. "\x45\x0\x8f\x46\x0\x91\x47\x0\x92\x48\x0\x94\x49\x0\x96\x4a\x0\x98\x4b\x0\x9b\x4d\x0\x9d"
  38. "\x4e\x0\xa0\x50\x0\xa2\x51\x0\xa5\x52\x0\xa7\x54\x0\xaa\x56\x0\xae\x57\x0\xb1"
  39. "\x58\x0\xb4\x5a\x0\xb7\x5c\x0\xba\x5e\x0\xbd\x5f\x0\xc0\x61\x0\xc4\x64\x0\xc8"
  40. "\x66\x0\xcb\x68\x0\xce\x69\x0\xd1\x68\x0\xd4\x65\x0\xd7\x63\x0\xda\x61\x0\xdd"
  41. "\x5d\x0\xe1\x5b\x0\xe4\x59\x0\xe6\x56\x0\xe9\x53\x0\xeb\x50\x0\xee\x4d\x0\xf0"
  42. "\x49\x0\xf3\x47\x0\xfc\x43\x0\xfa\x31\x0\xbf\x20\x0\x89\x20\x0\x92\x1e\x0\x95"
  43. "\x1b\x0\x97\x19\x0\x9a\x17\x0\x9c\x15\x0\x9e\x12\x0\xa0\xf\x0\xa3\xf\x2\xa5"
  44. "\xe\x6\xa8\xe\xa\xab\xe\xd\xad\xe\x11\xb1\xd\x15\xb4\xd\x18\xb7\xd\x1c\xba"
  45. "\xb\x21\xbd\xa\x25\xc0\xa\x29\xc3\x9\x2d\xc6\x8\x33\xca\x7\x36\xcd\x7\x3b\xd0"
  46. "\x7\x41\xd3\x5\x45\xd6\x4\x4b\xd9\x4\x50\xdc\x3\x55\xde\x2\x5d\xe2\x1\x61\xe5"
  47. "\x0\x66\xe7\x0\x6c\xea\x0\x72\xec\x0\x78\xee\x0\x7d\xf0\x0\x82\xf3\x0\x8d\xfc"
  48. "\x0\x90\xfa\x0\x71\xbf\x0\x54\x89\x0\x5c\x91\x0\x61\x94\x0\x64\x96\x0\x68\x97"
  49. "\x0\x6d\x99\x0\x71\x9b\x0\x75\x9d\x0\x79\x9f\x0\x7e\xa0\x0\x82\xa2\x0\x87\xa4"
  50. "\x0\x8c\xa6\x0\x92\xaa\x0\x96\xac\x0\x9c\xae\x0\xa2\xb1\x0\xa6\xb3\x0\xaa\xb5"
  51. "\x0\xad\xb7\x0\xb1\xba\x0\xb6\xbe\x0\xba\xc0\x0\xbe\xc2\x0\xc2\xc5\x0\xc6\xc6"
  52. "\x0\xca\xc9\x0\xcc\xca\x0\xcf\xcb\x0\xd2\xcc\x0\xd4\xcc\x0\xd6\xcc\x0\xd9\xcb"
  53. "\x0\xdb\xcb\x0\xde\xcb\x0\xe0\xcb\x0\xe2\xcc\x0\xea\xd2\x0\xea\xcf\x0\xb9\xa4"
  54. "\x0\x8e\x7a\x1\x94\x7c\x4\x97\x79\x7\x99\x75\x9\x9b\x71\xd\x9d\x6b\x10\x9f\x67"
  55. "\x12\xa1\x63\x15\xa3\x5f\x17\xa5\x59\x1a\xa8\x55\x1d\xaa\x50\x20\xac\x4b\x24\xaf\x45"
  56. "\x28\xb2\x41\x2b\xb5\x3b\x2e\xb8\x35\x31\xba\x30\x34\xbd\x2b\x39\xbf\x24\x3f\xc1\x17"
  57. "\x49\xc5\x8\x4f\xc8\x1\x4f\xca\x0\x4e\xcd\x0\x4e\xcf\x0\x4f\xd2\x0\x54\xd5\x0"
  58. "\x5d\xd8\x0\x68\xdb\x0\x6e\xdd\x0\x74\xdf\x0\x7a\xe2\x0\x7f\xe4\x0\x85\xe7\x0"
  59. "\x8b\xe9\x0\x8f\xeb\x0\x9b\xf3\x0\x9e\xf2\x0\x7e\xbb\x0\x60\x8a\x0\x68\x92\x0"
  60. "\x6d\x95\x0\x71\x96\x0\x75\x98\x0\x7b\x9a\x0\x7f\x9d\x0\x83\x9f\x0\x87\xa1\x0"
  61. "\x8c\xa2\x0\x8f\xa5\x0\x92\xa7\x0\x96\xa9\x0\x9a\xad\x0\x9d\xb0\x0\xa1\xb2\x0"
  62. "\xa5\xb5\x0\xa9\xb7\x0\xad\xba\x0\xb2\xbd\x0\xb6\xbf\x0\xbb\xc3\x0\xbf\xc6\x0"
  63. "\xc3\xc8\x0\xc8\xcb\x0\xcc\xce\x0\xd0\xd1\x0\xd3\xd2\x0\xd5\xd4\x0\xd9\xd4\x0"
  64. "\xdc\xd4\x0\xde\xd5\x0\xe1\xd5\x0\xe3\xd5\x0\xe6\xd4\x0\xe8\xd1\x0\xea\xce\x0"
  65. "\xf2\xcf\x0\xf2\xca\x0\xbb\x99\x0\x8a\x6e\x0\x92\x72\x0\x95\x72\x0\x97\x71\x0"
  66. "\x9a\x70\x0\x9c\x6e\x0\x9e\x6d\x0\xa0\x6b\x0\xa3\x6a\x0\xa5\x68\x0\xa8\x67\x0"
  67. "\xab\x66\x0\xae\x65\x0\xb2\x63\x0\xb4\x61\x0\xb7\x5f\x0\xba\x5d\x0\xbd\x5c\x0"
  68. "\xc0\x59\x0\xc3\x57\x0\xc6\x54\x0\xca\x50\x0\xcd\x4d\x0\xd0\x4a\x0\xd3\x47\x0"
  69. "\xd6\x43\x0\xd9\x40\x0\xdc\x3d\x0\xde\x39\x0\xe2\x33\x0\xe5\x2f\x0\xe7\x2c\x0"
  70. "\xea\x28\x0\xec\x23\x0\xef\x1f\x0\xf1\x1a\x0\xf3\x14\x0\xfb\xf\x0\xfa\xd\x0"
  71. "\xc1\x5\x0\x8e\x0\x0\x97\x0\x0\x9b\x0\x0\x9e\x0\x0\xa1\x0\x0\xa5\x0\x0"
  72. "\xa9\x0\x0\xad\x0\x0\xb1\x0\x0\xb6\x0\x0\xba\x0\x0\xbd\x0\x0\xc2\x0\x0"
  73. "\xc8\x0\x0\xcc\x0\x0\xcc\x0\x0"
  74. };
  75. char PrecipPalette[256*3] = {
  76. "\xe0\x98\x8\xec\x84\x10\xf5\x70\x1b\xfc\x5c\x29\xff\x49\x38\xff\x37\x4a"
  77. "\xfb\x28\x5d\xf5\x1a\x71\xeb\xf\x85\xdf\x8\x99\xd0\x3\xad\xc0\x1\xbf"
  78. "\xad\x3\xd0\x9a\x7\xdf\x86\xf\xeb\x72\x1a\xf5\x5e\x27\xfb\x4b\x37\xfe"
  79. "\x39\x48\xff\x29\x5b\xfc\x1b\x6f\xf5\x10\x83\xec\x8\x98\xe0\x3\xab\xd2"
  80. "\x1\xbe\xc1\x2\xcf\xaf\x7\xdd\x9c\xe\xea\x88\x19\xf4\x73\x26\xfb\x5f"
  81. "\x35\xfe\x4c\x47\xff\x3a\x5a\xfc\x2a\x6d\xf6\x1d\x82\xed\x11\x96\xe1\x9"
  82. "\xa9\xd3\x3\xbc\xc3\x1\xcd\xb1\x2\xdc\x9e\x6\xe9\x89\xe\xf3\x75\x18"
  83. "\xfa\x61\x25\xfe\x4e\x34\xff\x3c\x45\xfc\x2c\x58\xf7\x1e\x6c\xee\x12\x80"
  84. "\xe3\x9\x94\xd5\x4\xa8\xc4\x1\xba\xb2\x2\xcc\x9f\x6\xdb\x8b\xd\xe8"
  85. "\x77\x17\xf2\x63\x23\xfa\x50\x33\xfe\x3d\x44\xff\x2d\x56\xfd\x1f\x6a\xf7"
  86. "\x13\x7e\xef\xa\x92\xe4\x4\xa6\xd6\x1\xb9\xc6\x2\xca\xb4\x5\xda\xa1"
  87. "\xc\xe7\x8d\x16\xf1\x79\x22\xf9\x65\x31\xfe\x51\x42\xff\x3f\x54\xfd\x2f"
  88. "\x68\xf8\x20\x7c\xf0\x14\x90\xe5\xb\xa4\xd7\x4\xb7\xc7\x1\xc9\xb6\x1"
  89. "\xd8\xa3\x5\xe6\x8f\xb\xf1\x7b\x15\xf9\x66\x21\xfd\x53\x30\xff\x41\x40"
  90. "\xfd\x30\x53\xf9\x21\x66\xf1\x15\x7a\xe6\xb\x8f\xd9\x5\xa3\xc9\x1\xb6"
  91. "\xb7\x1\xc7\xa5\x4\xd7\x91\xb\xe5\x7c\x14\xf0\x68\x20\xf8\x55\x2e\xfd"
  92. "\x42\x3f\xff\x31\x51\xfe\x22\x64\xf9\x16\x78\xf2\xc\x8d\xe7\x5\xa1\xda"
  93. "\x2\xb4\xca\x1\xc6\xb9\x4\xd6\xa6\xa\xe4\x93\x13\xef\x7e\x1f\xf7\x6a"
  94. "\x2d\xfd\x56\x3d\xff\x44\x4f\xfe\x33\x63\xfa\x24\x77\xf2\x17\x8b\xe8\xd"
  95. "\x9f\xdb\x6\xb2\xcc\x2\xc4\xbb\x1\xd4\xa8\x4\xe2\x94\x9\xee\x80\x12"
  96. "\xf7\x6c\x1d\xfc\x58\x2b\xff\x45\x3c\xfe\x34\x4e\xfa\x25\x61\xf3\x18\x75"
  97. "\xe9\xe\x89\xdc\x6\x9d\xcd\x2\xb1\xbc\x1\xc3\xaa\x3\xd3\x96\x9\xe1"
  98. "\x82\x11\xed\x6e\x1c\xf6\x5a\x2a\xfc\x47\x3a\xff\x36\x4c\xfe\x26\x5f\xfb"
  99. "\x19\x73\xf4\xf\x87\xea\x7\x9b\xde\x2\xaf\xcf\x1\xc1\xbe\x3\xd2\xac"
  100. "\x8\xe0\x98\x10\xec\x84\x1b\xf5\x6f\x29\xfc\x5c\x39\xff\x49\x4a\xff\x37"
  101. "\x5d\xfb\x28\x71\xf5\x1a\x85\xeb\xf\x9a\xdf\x7\xad\xd0\x3\xbf\xc0\x1"
  102. "\xd0\xad\x3\xdf\x9a\x7\xeb\x86\xf\xf5\x71\x1a\xfb\x5d\x27\xff\x4a\x37"
  103. "\xff\x39\x49\xfc\x29\x5c\xf5\x1b\x6f\xec\x10\x84\xe0\x8\x98\xd2\x3\xab"
  104. "\xc1\x1\xbe\xaf\x2\xcf\x9c\x7\xde\x87\xe\xea\x73\x19\xf4\x5f\x26\xfb"
  105. "\x4c\x36\xfe\x3a\x47\xff\x2a\x5a\xfc\x1c\x6e\xf6\x11\x82\xed\x9\x96\xe1"
  106. "\x3\xaa\xd3\x1\xbc\xc3\x2\xcd\xb1\x6\xdc\x9d\xe\xe9\x89\x18\xf3\x75"
  107. "\x25\xfa\x61\x34\xfe\x4e\x45\xff\x3c\x58\xfc\x2c\x6c\xf7\x1e\x80\xee\x12"
  108. "\x94\xe2\x9\xa8\xd4\x4\xbb\xc4\x1\xcc\xb2\x2\xdb\x9f\x6\xe8\x8b\xd"
  109. "\xf2\x77\x17\xfa\x63\x24\xfe\x4f\x33\xff\x3d\x44\xfd\x2d\x56\xf7\x1f\x6a"
  110. "\xef\x13\x7e\xe4\xa\x92\xd6\x4\xa6\xc6\x1\xb9\xb4\x2\xca\xa1\x5\xda"
  111. "\x8d\xc\xe7\x79\x16\xf2\x64\x22\xf9\x51\x31\xfe\x3f\x42\xff\x2e\x55\xfd"
  112. "\x20\x68\xf8\x14\x7c\xf0\xb\x91\xe5\x4\xa4\xd7\x1\xb7\xc7\x1\xc9\xb6"
  113. "\x5\xd9\xa3\xb\xe6\x8f\x15\xf1\x7a\x21\xf9\x66\x30\xfd\x53\x41\xff\x40"
  114. "\x53\xfd\x30\x66\xf9\x21\x7b\xf1\x15\x8f\xe6\xb\xa3\xd8\x5\xb6\xc9\x1"
  115. "\xc7\xb7\x1\xd7\xa4\x4\xe5\x91\xb\xf0\x7c\x14\xf8\x68\x20\xfd\x54\x2e"
  116. "\xff\x42\x3f\xfe\x31\x51\xf9\x22\x65\xf1\x16\x79\xe7\xc\x8d\xda\x5\xa1"
  117. "\xca\x2\xb4\xb9\x1\xc6\xa6\x4\xd6\x92\xa\xe4\x7e\x13\xef\x6a\x1f\xf7"
  118. "\x56\x2d\xfd\x44\x3d\xff\x33\x4f\xfe\x24\x63\xfa"
  119. };