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aptdec
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aptdec/color.c

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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. 

  20. #include "common.h"

  21. 

  22. #define MCOMPOSITE(m1, a1, m2, a2) (m1*a1 + m2*a2*(1-a1))

  23. 

  24. rgb_t applyPalette(char *palette, int val){

  25. 	return (rgb_t){

  26. 		palette[(int)CLIP(val, 0, 255)*3 + 0],

  27. 		palette[(int)CLIP(val, 0, 255)*3 + 1],

  28. 		palette[(int)CLIP(val, 0, 255)*3 + 2]

  29. 	};

  30. }

  31. 

  32. rgb_t RGBcomposite(rgb_t top, float top_a, rgb_t bottom, float bottom_a){

  33. 	return (rgb_t){

  34. 		MCOMPOSITE(top.r, top_a, bottom.r, bottom_a),

  35. 		MCOMPOSITE(top.g, top_a, bottom.g, bottom_a),

  36. 		MCOMPOSITE(top.b, top_a, bottom.b, bottom_a)

  37. 	};

  38. }

  39. 

  40. // The "I totally didn't just steal this from WXtoImg" palette

  41. char TempPalette[256*3] = {

  42. 	"\x45\x0\x8f\x46\x0\x91\x47\x0\x92\x48\x0\x94\x49\x0\x96\x4a\x0\x98\x4b\x0\x9b\x4d\x0\x9d"

  43. 	"\x4e\x0\xa0\x50\x0\xa2\x51\x0\xa5\x52\x0\xa7\x54\x0\xaa\x56\x0\xae\x57\x0\xb1"

  44. 	"\x58\x0\xb4\x5a\x0\xb7\x5c\x0\xba\x5e\x0\xbd\x5f\x0\xc0\x61\x0\xc4\x64\x0\xc8"

  45. 	"\x66\x0\xcb\x68\x0\xce\x69\x0\xd1\x68\x0\xd4\x65\x0\xd7\x63\x0\xda\x61\x0\xdd"

  46. 	"\x5d\x0\xe1\x5b\x0\xe4\x59\x0\xe6\x56\x0\xe9\x53\x0\xeb\x50\x0\xee\x4d\x0\xf0"

  47. 	"\x49\x0\xf3\x47\x0\xfc\x43\x0\xfa\x31\x0\xbf\x20\x0\x89\x20\x0\x92\x1e\x0\x95"

  48. 	"\x1b\x0\x97\x19\x0\x9a\x17\x0\x9c\x15\x0\x9e\x12\x0\xa0\xf\x0\xa3\xf\x2\xa5"

  49. 	"\xe\x6\xa8\xe\xa\xab\xe\xd\xad\xe\x11\xb1\xd\x15\xb4\xd\x18\xb7\xd\x1c\xba"

  50. 	"\xb\x21\xbd\xa\x25\xc0\xa\x29\xc3\x9\x2d\xc6\x8\x33\xca\x7\x36\xcd\x7\x3b\xd0"

  51. 	"\x7\x41\xd3\x5\x45\xd6\x4\x4b\xd9\x4\x50\xdc\x3\x55\xde\x2\x5d\xe2\x1\x61\xe5"

  52. 	"\x0\x66\xe7\x0\x6c\xea\x0\x72\xec\x0\x78\xee\x0\x7d\xf0\x0\x82\xf3\x0\x8d\xfc"

  53. 	"\x0\x90\xfa\x0\x71\xbf\x0\x54\x89\x0\x5c\x91\x0\x61\x94\x0\x64\x96\x0\x68\x97"

  54. 	"\x0\x6d\x99\x0\x71\x9b\x0\x75\x9d\x0\x79\x9f\x0\x7e\xa0\x0\x82\xa2\x0\x87\xa4"

  55. 	"\x0\x8c\xa6\x0\x92\xaa\x0\x96\xac\x0\x9c\xae\x0\xa2\xb1\x0\xa6\xb3\x0\xaa\xb5"

  56. 	"\x0\xad\xb7\x0\xb1\xba\x0\xb6\xbe\x0\xba\xc0\x0\xbe\xc2\x0\xc2\xc5\x0\xc6\xc6"

  57. 	"\x0\xca\xc9\x0\xcc\xca\x0\xcf\xcb\x0\xd2\xcc\x0\xd4\xcc\x0\xd6\xcc\x0\xd9\xcb"

  58. 	"\x0\xdb\xcb\x0\xde\xcb\x0\xe0\xcb\x0\xe2\xcc\x0\xea\xd2\x0\xea\xcf\x0\xb9\xa4"

  59. 	"\x0\x8e\x7a\x1\x94\x7c\x4\x97\x79\x7\x99\x75\x9\x9b\x71\xd\x9d\x6b\x10\x9f\x67"

  60. 	"\x12\xa1\x63\x15\xa3\x5f\x17\xa5\x59\x1a\xa8\x55\x1d\xaa\x50\x20\xac\x4b\x24\xaf\x45"

  61. 	"\x28\xb2\x41\x2b\xb5\x3b\x2e\xb8\x35\x31\xba\x30\x34\xbd\x2b\x39\xbf\x24\x3f\xc1\x17"

  62. 	"\x49\xc5\x8\x4f\xc8\x1\x4f\xca\x0\x4e\xcd\x0\x4e\xcf\x0\x4f\xd2\x0\x54\xd5\x0"

  63. 	"\x5d\xd8\x0\x68\xdb\x0\x6e\xdd\x0\x74\xdf\x0\x7a\xe2\x0\x7f\xe4\x0\x85\xe7\x0"

  64. 	"\x8b\xe9\x0\x8f\xeb\x0\x9b\xf3\x0\x9e\xf2\x0\x7e\xbb\x0\x60\x8a\x0\x68\x92\x0"

  65. 	"\x6d\x95\x0\x71\x96\x0\x75\x98\x0\x7b\x9a\x0\x7f\x9d\x0\x83\x9f\x0\x87\xa1\x0"

  66. 	"\x8c\xa2\x0\x8f\xa5\x0\x92\xa7\x0\x96\xa9\x0\x9a\xad\x0\x9d\xb0\x0\xa1\xb2\x0"

  67. 	"\xa5\xb5\x0\xa9\xb7\x0\xad\xba\x0\xb2\xbd\x0\xb6\xbf\x0\xbb\xc3\x0\xbf\xc6\x0"

  68. 	"\xc3\xc8\x0\xc8\xcb\x0\xcc\xce\x0\xd0\xd1\x0\xd3\xd2\x0\xd5\xd4\x0\xd9\xd4\x0"

  69. 	"\xdc\xd4\x0\xde\xd5\x0\xe1\xd5\x0\xe3\xd5\x0\xe6\xd4\x0\xe8\xd1\x0\xea\xce\x0"

  70. 	"\xf2\xcf\x0\xf2\xca\x0\xbb\x99\x0\x8a\x6e\x0\x92\x72\x0\x95\x72\x0\x97\x71\x0"

  71. 	"\x9a\x70\x0\x9c\x6e\x0\x9e\x6d\x0\xa0\x6b\x0\xa3\x6a\x0\xa5\x68\x0\xa8\x67\x0"

  72. 	"\xab\x66\x0\xae\x65\x0\xb2\x63\x0\xb4\x61\x0\xb7\x5f\x0\xba\x5d\x0\xbd\x5c\x0"

  73. 	"\xc0\x59\x0\xc3\x57\x0\xc6\x54\x0\xca\x50\x0\xcd\x4d\x0\xd0\x4a\x0\xd3\x47\x0"

  74. 	"\xd6\x43\x0\xd9\x40\x0\xdc\x3d\x0\xde\x39\x0\xe2\x33\x0\xe5\x2f\x0\xe7\x2c\x0"

  75. 	"\xea\x28\x0\xec\x23\x0\xef\x1f\x0\xf1\x1a\x0\xf3\x14\x0\xfb\xf\x0\xfa\xd\x0"

  76. 	"\xc1\x5\x0\x8e\x0\x0\x97\x0\x0\x9b\x0\x0\x9e\x0\x0\xa1\x0\x0\xa5\x0\x0"

  77. 	"\xa9\x0\x0\xad\x0\x0\xb1\x0\x0\xb6\x0\x0\xba\x0\x0\xbd\x0\x0\xc2\x0\x0"

  78. 	"\xc8\x0\x0\xcc\x0\x0\xcc\x0\x0"

  79. };

  80. 

  81. char PrecipPalette[256*3] = {

  82. 	"\xe0\x98\x8\xec\x84\x10\xf5\x70\x1b\xfc\x5c\x29\xff\x49\x38\xff\x37\x4a"

  83. 	"\xfb\x28\x5d\xf5\x1a\x71\xeb\xf\x85\xdf\x8\x99\xd0\x3\xad\xc0\x1\xbf"

  84. 	"\xad\x3\xd0\x9a\x7\xdf\x86\xf\xeb\x72\x1a\xf5\x5e\x27\xfb\x4b\x37\xfe"

  85. 	"\x39\x48\xff\x29\x5b\xfc\x1b\x6f\xf5\x10\x83\xec\x8\x98\xe0\x3\xab\xd2"

  86. 	"\x1\xbe\xc1\x2\xcf\xaf\x7\xdd\x9c\xe\xea\x88\x19\xf4\x73\x26\xfb\x5f"

  87. 	"\x35\xfe\x4c\x47\xff\x3a\x5a\xfc\x2a\x6d\xf6\x1d\x82\xed\x11\x96\xe1\x9"

  88. 	"\xa9\xd3\x3\xbc\xc3\x1\xcd\xb1\x2\xdc\x9e\x6\xe9\x89\xe\xf3\x75\x18"

  89. 	"\xfa\x61\x25\xfe\x4e\x34\xff\x3c\x45\xfc\x2c\x58\xf7\x1e\x6c\xee\x12\x80"

  90. 	"\xe3\x9\x94\xd5\x4\xa8\xc4\x1\xba\xb2\x2\xcc\x9f\x6\xdb\x8b\xd\xe8"

  91. 	"\x77\x17\xf2\x63\x23\xfa\x50\x33\xfe\x3d\x44\xff\x2d\x56\xfd\x1f\x6a\xf7"

  92. 	"\x13\x7e\xef\xa\x92\xe4\x4\xa6\xd6\x1\xb9\xc6\x2\xca\xb4\x5\xda\xa1"

  93. 	"\xc\xe7\x8d\x16\xf1\x79\x22\xf9\x65\x31\xfe\x51\x42\xff\x3f\x54\xfd\x2f"

  94. 	"\x68\xf8\x20\x7c\xf0\x14\x90\xe5\xb\xa4\xd7\x4\xb7\xc7\x1\xc9\xb6\x1"

  95. 	"\xd8\xa3\x5\xe6\x8f\xb\xf1\x7b\x15\xf9\x66\x21\xfd\x53\x30\xff\x41\x40"

  96. 	"\xfd\x30\x53\xf9\x21\x66\xf1\x15\x7a\xe6\xb\x8f\xd9\x5\xa3\xc9\x1\xb6"

  97. 	"\xb7\x1\xc7\xa5\x4\xd7\x91\xb\xe5\x7c\x14\xf0\x68\x20\xf8\x55\x2e\xfd"

  98. 	"\x42\x3f\xff\x31\x51\xfe\x22\x64\xf9\x16\x78\xf2\xc\x8d\xe7\x5\xa1\xda"

  99. 	"\x2\xb4\xca\x1\xc6\xb9\x4\xd6\xa6\xa\xe4\x93\x13\xef\x7e\x1f\xf7\x6a"

  100. 	"\x2d\xfd\x56\x3d\xff\x44\x4f\xfe\x33\x63\xfa\x24\x77\xf2\x17\x8b\xe8\xd"

  101. 	"\x9f\xdb\x6\xb2\xcc\x2\xc4\xbb\x1\xd4\xa8\x4\xe2\x94\x9\xee\x80\x12"

  102. 	"\xf7\x6c\x1d\xfc\x58\x2b\xff\x45\x3c\xfe\x34\x4e\xfa\x25\x61\xf3\x18\x75"

  103. 	"\xe9\xe\x89\xdc\x6\x9d\xcd\x2\xb1\xbc\x1\xc3\xaa\x3\xd3\x96\x9\xe1"

  104. 	"\x82\x11\xed\x6e\x1c\xf6\x5a\x2a\xfc\x47\x3a\xff\x36\x4c\xfe\x26\x5f\xfb"

  105. 	"\x19\x73\xf4\xf\x87\xea\x7\x9b\xde\x2\xaf\xcf\x1\xc1\xbe\x3\xd2\xac"

  106. 	"\x8\xe0\x98\x10\xec\x84\x1b\xf5\x6f\x29\xfc\x5c\x39\xff\x49\x4a\xff\x37"

  107. 	"\x5d\xfb\x28\x71\xf5\x1a\x85\xeb\xf\x9a\xdf\x7\xad\xd0\x3\xbf\xc0\x1"

  108. 	"\xd0\xad\x3\xdf\x9a\x7\xeb\x86\xf\xf5\x71\x1a\xfb\x5d\x27\xff\x4a\x37"

  109. 	"\xff\x39\x49\xfc\x29\x5c\xf5\x1b\x6f\xec\x10\x84\xe0\x8\x98\xd2\x3\xab"

  110. 	"\xc1\x1\xbe\xaf\x2\xcf\x9c\x7\xde\x87\xe\xea\x73\x19\xf4\x5f\x26\xfb"

  111. 	"\x4c\x36\xfe\x3a\x47\xff\x2a\x5a\xfc\x1c\x6e\xf6\x11\x82\xed\x9\x96\xe1"

  112. 	"\x3\xaa\xd3\x1\xbc\xc3\x2\xcd\xb1\x6\xdc\x9d\xe\xe9\x89\x18\xf3\x75"

  113. 	"\x25\xfa\x61\x34\xfe\x4e\x45\xff\x3c\x58\xfc\x2c\x6c\xf7\x1e\x80\xee\x12"

  114. 	"\x94\xe2\x9\xa8\xd4\x4\xbb\xc4\x1\xcc\xb2\x2\xdb\x9f\x6\xe8\x8b\xd"

  115. 	"\xf2\x77\x17\xfa\x63\x24\xfe\x4f\x33\xff\x3d\x44\xfd\x2d\x56\xf7\x1f\x6a"

  116. 	"\xef\x13\x7e\xe4\xa\x92\xd6\x4\xa6\xc6\x1\xb9\xb4\x2\xca\xa1\x5\xda"

  117. 	"\x8d\xc\xe7\x79\x16\xf2\x64\x22\xf9\x51\x31\xfe\x3f\x42\xff\x2e\x55\xfd"

  118. 	"\x20\x68\xf8\x14\x7c\xf0\xb\x91\xe5\x4\xa4\xd7\x1\xb7\xc7\x1\xc9\xb6"

  119. 	"\x5\xd9\xa3\xb\xe6\x8f\x15\xf1\x7a\x21\xf9\x66\x30\xfd\x53\x41\xff\x40"

  120. 	"\x53\xfd\x30\x66\xf9\x21\x7b\xf1\x15\x8f\xe6\xb\xa3\xd8\x5\xb6\xc9\x1"

  121. 	"\xc7\xb7\x1\xd7\xa4\x4\xe5\x91\xb\xf0\x7c\x14\xf8\x68\x20\xfd\x54\x2e"

  122. 	"\xff\x42\x3f\xfe\x31\x51\xf9\x22\x65\xf1\x16\x79\xe7\xc\x8d\xda\x5\xa1"

  123. 	"\xca\x2\xb4\xb9\x1\xc6\xa6\x4\xd6\x92\xa\xe4\x7e\x13\xef\x6a\x1f\xf7"

  124. 	"\x56\x2d\xfd\x44\x3d\xff\x33\x4f\xfe\x24\x63\xfa"

  125. };