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1565 lines
40 KiB
1565 lines
40 KiB
/* |
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img_utils.c - image common tools |
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Copyright (C) 2007 Uncle Mike |
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|
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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*/ |
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|
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#include "imagelib.h" |
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#include "mathlib.h" |
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#include "mod_local.h" |
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#include "gl_export.h" |
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|
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#define LERPBYTE( i ) r = resamplerow1[i]; out[i] = (byte)(((( resamplerow2[i] - r ) * lerp)>>16 ) + r ) |
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#define FILTER_SIZE 5 |
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|
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uint d_8toQ1table[256]; |
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uint d_8toHLtable[256]; |
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uint d_8to24table[256]; |
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|
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qboolean q1palette_init = false; |
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qboolean hlpalette_init = false; |
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|
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static byte palette_q1[768] = |
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{ |
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0,0,0,15,15,15,31,31,31,47,47,47,63,63,63,75,75,75,91,91,91,107,107,107,123,123,123,139,139,139,155,155,155,171, |
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171,171,187,187,187,203,203,203,219,219,219,235,235,235,15,11,7,23,15,11,31,23,11,39,27,15,47,35,19,55,43,23,63, |
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47,23,75,55,27,83,59,27,91,67,31,99,75,31,107,83,31,115,87,31,123,95,35,131,103,35,143,111,35,11,11,15,19,19,27, |
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27,27,39,39,39,51,47,47,63,55,55,75,63,63,87,71,71,103,79,79,115,91,91,127,99,99,139,107,107,151,115,115,163,123, |
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123,175,131,131,187,139,139,203,0,0,0,7,7,0,11,11,0,19,19,0,27,27,0,35,35,0,43,43,7,47,47,7,55,55,7,63,63,7,71,71, |
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7,75,75,11,83,83,11,91,91,11,99,99,11,107,107,15,7,0,0,15,0,0,23,0,0,31,0,0,39,0,0,47,0,0,55,0,0,63,0,0,71,0,0,79, |
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0,0,87,0,0,95,0,0,103,0,0,111,0,0,119,0,0,127,0,0,19,19,0,27,27,0,35,35,0,47,43,0,55,47,0,67,55,0,75,59,7,87,67,7, |
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95,71,7,107,75,11,119,83,15,131,87,19,139,91,19,151,95,27,163,99,31,175,103,35,35,19,7,47,23,11,59,31,15,75,35,19, |
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87,43,23,99,47,31,115,55,35,127,59,43,143,67,51,159,79,51,175,99,47,191,119,47,207,143,43,223,171,39,239,203,31,255, |
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243,27,11,7,0,27,19,0,43,35,15,55,43,19,71,51,27,83,55,35,99,63,43,111,71,51,127,83,63,139,95,71,155,107,83,167,123, |
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95,183,135,107,195,147,123,211,163,139,227,179,151,171,139,163,159,127,151,147,115,135,139,103,123,127,91,111,119, |
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83,99,107,75,87,95,63,75,87,55,67,75,47,55,67,39,47,55,31,35,43,23,27,35,19,19,23,11,11,15,7,7,187,115,159,175,107, |
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143,163,95,131,151,87,119,139,79,107,127,75,95,115,67,83,107,59,75,95,51,63,83,43,55,71,35,43,59,31,35,47,23,27,35, |
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19,19,23,11,11,15,7,7,219,195,187,203,179,167,191,163,155,175,151,139,163,135,123,151,123,111,135,111,95,123,99,83, |
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107,87,71,95,75,59,83,63,51,67,51,39,55,43,31,39,31,23,27,19,15,15,11,7,111,131,123,103,123,111,95,115,103,87,107, |
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95,79,99,87,71,91,79,63,83,71,55,75,63,47,67,55,43,59,47,35,51,39,31,43,31,23,35,23,15,27,19,11,19,11,7,11,7,255, |
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243,27,239,223,23,219,203,19,203,183,15,187,167,15,171,151,11,155,131,7,139,115,7,123,99,7,107,83,0,91,71,0,75,55, |
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0,59,43,0,43,31,0,27,15,0,11,7,0,0,0,255,11,11,239,19,19,223,27,27,207,35,35,191,43,43,175,47,47,159,47,47,143,47, |
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47,127,47,47,111,47,47,95,43,43,79,35,35,63,27,27,47,19,19,31,11,11,15,43,0,0,59,0,0,75,7,0,95,7,0,111,15,0,127,23, |
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7,147,31,7,163,39,11,183,51,15,195,75,27,207,99,43,219,127,59,227,151,79,231,171,95,239,191,119,247,211,139,167,123, |
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59,183,155,55,199,195,55,231,227,87,127,191,255,171,231,255,215,255,255,103,0,0,139,0,0,179,0,0,215,0,0,255,0,0,255, |
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243,147,255,247,199,255,255,255,159,91,83 |
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}; |
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|
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// this is used only for particle colors |
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static byte palette_hl[768] = |
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{ |
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0,0,0,15,15,15,31,31,31,47,47,47,63,63,63,75,75,75,91,91,91,107,107,107,123,123,123,139,139,139,155,155,155,171, |
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171,171,187,187,187,203,203,203,219,219,219,235,235,235,15,11,7,23,15,11,31,23,11,39,27,15,47,35,19,55,43,23,63, |
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47,23,75,55,27,83,59,27,91,67,31,99,75,31,107,83,31,115,87,31,123,95,35,131,103,35,143,111,35,11,11,15,19,19,27, |
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27,27,39,39,39,51,47,47,63,55,55,75,63,63,87,71,71,103,79,79,115,91,91,127,99,99,139,107,107,151,115,115,163,123, |
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123,175,131,131,187,139,139,203,0,0,0,7,7,0,11,11,0,19,19,0,27,27,0,35,35,0,43,43,7,47,47,7,55,55,7,63,63,7,71,71, |
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7,75,75,11,83,83,11,91,91,11,99,99,11,107,107,15,7,0,0,15,0,0,23,0,0,31,0,0,39,0,0,47,0,0,55,0,0,63,0,0,71,0,0,79, |
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0,0,87,0,0,95,0,0,103,0,0,111,0,0,119,0,0,127,0,0,19,19,0,27,27,0,35,35,0,47,43,0,55,47,0,67,55,0,75,59,7,87,67,7, |
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95,71,7,107,75,11,119,83,15,131,87,19,139,91,19,151,95,27,163,99,31,175,103,35,35,19,7,47,23,11,59,31,15,75,35,19, |
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87,43,23,99,47,31,115,55,35,127,59,43,143,67,51,159,79,51,175,99,47,191,119,47,207,143,43,223,171,39,239,203,31,255, |
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243,27,11,7,0,27,19,0,43,35,15,55,43,19,71,51,27,83,55,35,99,63,43,111,71,51,127,83,63,139,95,71,155,107,83,167,123, |
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95,183,135,107,195,147,123,211,163,139,227,179,151,171,139,163,159,127,151,147,115,135,139,103,123,127,91,111,119, |
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83,99,107,75,87,95,63,75,87,55,67,75,47,55,67,39,47,55,31,35,43,23,27,35,19,19,23,11,11,15,7,7,187,115,159,175,107, |
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143,163,95,131,151,87,119,139,79,107,127,75,95,115,67,83,107,59,75,95,51,63,83,43,55,71,35,43,59,31,35,47,23,27,35, |
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19,19,23,11,11,15,7,7,219,195,187,203,179,167,191,163,155,175,151,139,163,135,123,151,123,111,135,111,95,123,99,83, |
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107,87,71,95,75,59,83,63,51,67,51,39,55,43,31,39,31,23,27,19,15,15,11,7,111,131,123,103,123,111,95,115,103,87,107, |
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95,79,99,87,71,91,79,63,83,71,55,75,63,47,67,55,43,59,47,35,51,39,31,43,31,23,35,23,15,27,19,11,19,11,7,11,7,255, |
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243,27,239,223,23,219,203,19,203,183,15,187,167,15,171,151,11,155,131,7,139,115,7,123,99,7,107,83,0,91,71,0,75,55, |
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0,59,43,0,43,31,0,27,15,0,11,7,0,0,0,255,11,11,239,19,19,223,27,27,207,35,35,191,43,43,175,47,47,159,47,47,143,47, |
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47,127,47,47,111,47,47,95,43,43,79,35,35,63,27,27,47,19,19,31,11,11,15,43,0,0,59,0,0,75,7,0,95,7,0,111,15,0,127,23, |
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7,147,31,7,163,39,11,183,51,15,195,75,27,207,99,43,219,127,59,227,151,79,231,171,95,239,191,119,247,211,139,167,123, |
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59,183,155,55,199,195,55,231,227,87,0,255,0,171,231,255,215,255,255,103,0,0,139,0,0,179,0,0,215,0,0,255,0,0,255,243, |
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147,255,247,199,255,255,255,159,91,83 |
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}; |
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static float FILTER[NUM_FILTERS][FILTER_SIZE][FILTER_SIZE] = |
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{ |
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{ // regular blur |
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{ 0.0f, 0.0f, 0.0f, 0.0f, 0.0f }, |
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{ 0.0f, 1.0f, 1.0f, 1.0f, 0.0f }, |
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{ 0.0f, 1.0f, 1.0f, 1.0f, 0.0f }, |
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{ 0.0f, 1.0f, 1.0f, 1.0f, 0.0f }, |
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{ 0.0f, 0.0f, 0.0f, 0.0f, 0.0f }, |
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}, |
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{ // light blur |
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{ 0.0f, 0.0f, 0.0f, 0.0f, 0.0f }, |
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{ 0.0f, 1.0f, 1.0f, 1.0f, 0.0f }, |
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{ 0.0f, 1.0f, 4.0f, 1.0f, 0.0f }, |
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{ 0.0f, 1.0f, 1.0f, 1.0f, 0.0f }, |
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{ 0.0f, 0.0f, 0.0f, 0.0f, 0.0f }, |
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}, |
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{ // find edges |
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{ 0.0f, 0.0f, 0.0f, 0.0f, 0.0f }, |
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{ 0.0f, -1.0f, -1.0f, -1.0f, 0.0f }, |
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{ 0.0f, -1.0f, 8.0f, -1.0f, 0.0f }, |
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{ 0.0f, -1.0f, -1.0f, -1.0f, 0.0f }, |
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{ 0.0f, 0.0f, 0.0f, 0.0f, 0.0f }, |
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}, |
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{ // emboss |
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{-0.7f, -0.7f, -0.7f, -0.7f, 0.0f }, |
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{-0.7f, -0.7f, -0.7f, 0.0f, 0.7f }, |
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{-0.7f, -0.7f, 0.0f, 0.7f, 0.7f }, |
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{-0.7f, 0.0f, 0.7f, 0.7f, 0.7f }, |
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{ 0.0f, 0.7f, 0.7f, 0.7f, 0.7f }, |
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} |
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}; |
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|
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/* |
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============================================================================= |
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XASH3D LOAD IMAGE FORMATS |
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|
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============================================================================= |
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*/ |
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// stub |
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static const loadpixformat_t load_null[] = |
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{ |
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{ NULL, NULL, NULL, IL_HINT_NO } |
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}; |
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static const loadpixformat_t load_game[] = |
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{ |
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{ "%s%s.%s", "dds", Image_LoadDDS, IL_HINT_NO }, // dds for world and studio models |
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{ "%s%s.%s", "tga", Image_LoadTGA, IL_HINT_NO }, // hl vgui menus |
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{ "%s%s.%s", "bmp", Image_LoadBMP, IL_HINT_NO }, // WON menu images |
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{ "%s%s.%s", "mip", Image_LoadMIP, IL_HINT_NO }, // hl textures from wad or buffer |
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{ "%s%s.%s", "mdl", Image_LoadMDL, IL_HINT_HL }, // hl studio model skins |
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{ "%s%s.%s", "spr", Image_LoadSPR, IL_HINT_HL }, // hl sprite frames |
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{ "%s%s.%s", "lmp", Image_LoadLMP, IL_HINT_NO }, // hl menu images (cached.wad etc) |
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{ "%s%s.%s", "fnt", Image_LoadFNT, IL_HINT_HL }, // hl console font (fonts.wad etc) |
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{ "%s%s.%s", "pal", Image_LoadPAL, IL_HINT_NO }, // install studio\sprite palette |
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{ NULL, NULL, NULL, IL_HINT_NO } |
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}; |
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|
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/* |
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============================================================================= |
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XASH3D SAVE IMAGE FORMATS |
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|
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============================================================================= |
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*/ |
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// stub |
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static const savepixformat_t save_null[] = |
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{ |
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{ NULL, NULL, NULL } |
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}; |
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|
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// Xash3D normal instance |
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static const savepixformat_t save_game[] = |
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{ |
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{ "%s%s.%s", "tga", Image_SaveTGA }, // tga screenshots |
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{ "%s%s.%s", "bmp", Image_SaveBMP }, // bmp levelshots or screenshots |
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{ NULL, NULL, NULL } |
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}; |
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void Image_Init( void ) |
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{ |
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// init pools |
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host.imagepool = Mem_AllocPool( "ImageLib Pool" ); |
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|
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// install image formats (can be re-install later by Image_Setup) |
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switch( host.type ) |
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{ |
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case HOST_NORMAL: |
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image.cmd_flags = IL_USE_LERPING|IL_ALLOW_OVERWRITE; |
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image.loadformats = load_game; |
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image.saveformats = save_game; |
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break; |
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default: // all other instances not using imagelib |
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image.cmd_flags = 0; |
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image.loadformats = load_game; |
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image.saveformats = save_null; |
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break; |
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} |
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image.tempbuffer = NULL; |
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} |
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void Image_Shutdown( void ) |
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{ |
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Mem_Check(); // check for leaks |
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Mem_FreePool( &host.imagepool ); |
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} |
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byte *Image_Copy( size_t size ) |
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{ |
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byte *out; |
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out = Mem_Alloc( host.imagepool, size ); |
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memcpy( out, image.tempbuffer, size ); |
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return out; |
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} |
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|
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/* |
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================= |
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Image_CheckFlag |
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================= |
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*/ |
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qboolean Image_CheckFlag( int bit ) |
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{ |
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if( FBitSet( image.force_flags, bit )) |
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return true; |
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if( FBitSet( image.cmd_flags, bit )) |
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return true; |
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return false; |
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} |
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|
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/* |
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================= |
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Image_SetForceFlags |
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================= |
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*/ |
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void Image_SetForceFlags( uint flags ) |
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{ |
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SetBits( image.force_flags, flags ); |
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} |
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|
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/* |
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================= |
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Image_ClearForceFlags |
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================= |
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*/ |
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void Image_ClearForceFlags( void ) |
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{ |
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image.force_flags = 0; |
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} |
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|
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/* |
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================= |
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Image_AddCmdFlags |
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================= |
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*/ |
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void Image_AddCmdFlags( uint flags ) |
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{ |
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SetBits( image.cmd_flags, flags ); |
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} |
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qboolean Image_ValidSize( const char *name ) |
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{ |
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if( image.width > IMAGE_MAXWIDTH || image.height > IMAGE_MAXHEIGHT || image.width <= 0 || image.height <= 0 ) |
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{ |
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MsgDev( D_ERROR, "Image: %s has invalid sizes %i x %i\n", name, image.width, image.height ); |
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return false; |
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} |
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return true; |
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} |
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|
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qboolean Image_LumpValidSize( const char *name ) |
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{ |
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if( image.width > LUMP_MAXWIDTH || image.height > LUMP_MAXHEIGHT || image.width <= 0 || image.height <= 0 ) |
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{ |
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MsgDev(D_WARN, "Image_LumpValidSize: (%s) dims out of range[%dx%d]\n", name, image.width,image.height ); |
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return false; |
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} |
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return true; |
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} |
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|
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/* |
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============= |
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Image_ComparePalette |
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============= |
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*/ |
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int Image_ComparePalette( const byte *pal ) |
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{ |
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if( pal == NULL ) |
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return PAL_INVALID; |
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else if( !memcmp( palette_q1, pal, 765 )) // last color was changed |
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return PAL_QUAKE1; |
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else if( !memcmp( palette_hl, pal, 765 )) |
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return PAL_HALFLIFE; |
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return PAL_CUSTOM; |
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} |
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|
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void Image_SetPalette( const byte *pal, uint *d_table ) |
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{ |
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int i; |
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byte rgba[4]; |
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|
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// setup palette |
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switch( image.d_rendermode ) |
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{ |
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case LUMP_NORMAL: |
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for( i = 0; i < 256; i++ ) |
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{ |
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rgba[0] = pal[i*3+0]; |
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rgba[1] = pal[i*3+1]; |
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rgba[2] = pal[i*3+2]; |
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rgba[3] = 0xFF; |
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d_table[i] = *(uint *)rgba; |
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} |
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break; |
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case LUMP_GRADIENT: |
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for( i = 0; i < 256; i++ ) |
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{ |
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rgba[0] = pal[765]; |
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rgba[1] = pal[766]; |
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rgba[2] = pal[767]; |
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rgba[3] = i; |
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d_table[i] = *(uint *)rgba; |
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} |
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break; |
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case LUMP_MASKED: |
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for( i = 0; i < 255; i++ ) |
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{ |
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rgba[0] = pal[i*3+0]; |
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rgba[1] = pal[i*3+1]; |
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rgba[2] = pal[i*3+2]; |
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rgba[3] = 0xFF; |
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d_table[i] = *(uint *)rgba; |
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} |
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d_table[255] = 0; |
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break; |
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case LUMP_EXTENDED: |
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for( i = 0; i < 256; i++ ) |
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{ |
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rgba[0] = pal[i*4+0]; |
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rgba[1] = pal[i*4+1]; |
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rgba[2] = pal[i*4+2]; |
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rgba[3] = pal[i*4+3]; |
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d_table[i] = *(uint *)rgba; |
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} |
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break; |
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} |
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} |
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|
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void Image_GetPaletteQ1( void ) |
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{ |
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if( !q1palette_init ) |
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{ |
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image.d_rendermode = LUMP_NORMAL; |
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Image_SetPalette( palette_q1, d_8toQ1table ); |
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d_8toQ1table[255] = 0; // 255 is transparent |
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q1palette_init = true; |
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} |
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|
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image.d_rendermode = LUMP_QUAKE1; |
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image.d_currentpal = d_8toQ1table; |
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} |
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|
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void Image_GetPaletteHL( void ) |
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{ |
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if( !hlpalette_init ) |
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{ |
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image.d_rendermode = LUMP_NORMAL; |
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Image_SetPalette( palette_hl, d_8toHLtable ); |
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hlpalette_init = true; |
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} |
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|
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image.d_rendermode = LUMP_HALFLIFE; |
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image.d_currentpal = d_8toHLtable; |
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} |
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|
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void Image_GetPaletteBMP( const byte *pal ) |
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{ |
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image.d_rendermode = LUMP_EXTENDED; |
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|
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if( pal ) |
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{ |
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Image_SetPalette( pal, d_8to24table ); |
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image.d_currentpal = d_8to24table; |
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} |
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} |
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|
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void Image_GetPaletteLMP( const byte *pal, int rendermode ) |
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{ |
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image.d_rendermode = rendermode; |
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|
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if( pal ) |
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{ |
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Image_SetPalette( pal, d_8to24table ); |
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image.d_currentpal = d_8to24table; |
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} |
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else |
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{ |
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switch( rendermode ) |
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{ |
|
case LUMP_QUAKE1: |
|
Image_GetPaletteQ1(); |
|
break; |
|
case LUMP_HALFLIFE: |
|
Image_GetPaletteHL(); // default half-life palette |
|
break; |
|
default: |
|
MsgDev( D_ERROR, "Image_GetPaletteLMP: invalid palette specified\n" ); |
|
Image_GetPaletteHL(); // defaulting to half-life palette |
|
break; |
|
} |
|
} |
|
} |
|
|
|
static void Image_ConvertPalTo24bit( rgbdata_t *pic ) |
|
{ |
|
byte *pal32, *pal24; |
|
byte *converted; |
|
int i; |
|
|
|
if( pic->type == PF_INDEXED_24 ) |
|
return; // does nothing |
|
|
|
pal24 = converted = Mem_Alloc( host.imagepool, 768 ); |
|
pal32 = pic->palette; |
|
|
|
for( i = 0; i < 256; i++, pal24 += 3, pal32 += 4 ) |
|
{ |
|
pal24[0] = pal32[0]; |
|
pal24[1] = pal32[1]; |
|
pal24[2] = pal32[2]; |
|
} |
|
|
|
Mem_Free( pic->palette ); |
|
pic->palette = converted; |
|
pic->type = PF_INDEXED_24; |
|
} |
|
|
|
void Image_CopyPalette32bit( void ) |
|
{ |
|
if( image.palette ) return; // already created ? |
|
image.palette = Mem_Alloc( host.imagepool, 1024 ); |
|
memcpy( image.palette, image.d_currentpal, 1024 ); |
|
} |
|
|
|
void Image_PaletteHueReplace( byte *palSrc, int newHue, int start, int end, int pal_size ) |
|
{ |
|
float r, g, b; |
|
float maxcol, mincol; |
|
float hue, val, sat; |
|
int i; |
|
|
|
hue = (float)(newHue * ( 360.0f / 255 )); |
|
pal_size = bound( 3, pal_size, 4 ); |
|
|
|
for( i = start; i <= end; i++ ) |
|
{ |
|
r = palSrc[i*pal_size+0]; |
|
g = palSrc[i*pal_size+1]; |
|
b = palSrc[i*pal_size+2]; |
|
|
|
maxcol = max( max( r, g ), b ) / 255.0f; |
|
mincol = min( min( r, g ), b ) / 255.0f; |
|
|
|
if( maxcol == 0 ) continue; |
|
|
|
val = maxcol; |
|
sat = (maxcol - mincol) / maxcol; |
|
|
|
mincol = val * (1.0f - sat); |
|
|
|
if( hue <= 120.0f ) |
|
{ |
|
b = mincol; |
|
if( hue < 60 ) |
|
{ |
|
r = val; |
|
g = mincol + hue * (val - mincol) / (120.0f - hue); |
|
} |
|
else |
|
{ |
|
g = val; |
|
r = mincol + (120.0f - hue) * (val - mincol) / hue; |
|
} |
|
} |
|
else if( hue <= 240.0f ) |
|
{ |
|
r = mincol; |
|
if( hue < 180.0f ) |
|
{ |
|
g = val; |
|
b = mincol + (hue - 120.0f) * (val - mincol) / (240.0f - hue); |
|
} |
|
else |
|
{ |
|
b = val; |
|
g = mincol + (240.0f - hue) * (val - mincol) / (hue - 120.0f); |
|
} |
|
} |
|
else |
|
{ |
|
g = mincol; |
|
if( hue < 300.0f ) |
|
{ |
|
b = val; |
|
r = mincol + (hue - 240.0f) * (val - mincol) / (360.0f - hue); |
|
} |
|
else |
|
{ |
|
r = val; |
|
b = mincol + (360.0f - hue) * (val - mincol) / (hue - 240.0f); |
|
} |
|
} |
|
|
|
palSrc[i*pal_size+0] = (byte)(r * 255); |
|
palSrc[i*pal_size+1] = (byte)(g * 255); |
|
palSrc[i*pal_size+2] = (byte)(b * 255); |
|
} |
|
} |
|
|
|
void Image_PaletteTranslate( byte *palSrc, int top, int bottom, int pal_size ) |
|
{ |
|
byte dst[256], src[256]; |
|
int i; |
|
|
|
pal_size = bound( 3, pal_size, 4 ); |
|
for( i = 0; i < 256; i++ ) |
|
src[i] = i; |
|
memcpy( dst, src, 256 ); |
|
|
|
if( top < 128 ) |
|
{ |
|
// the artists made some backwards ranges. sigh. |
|
memcpy( dst + SHIRT_HUE_START, src + top, 16 ); |
|
} |
|
else |
|
{ |
|
for( i = 0; i < 16; i++ ) |
|
dst[SHIRT_HUE_START+i] = src[top + 15 - i]; |
|
} |
|
|
|
if( bottom < 128 ) |
|
{ |
|
memcpy( dst + PANTS_HUE_START, src + bottom, 16 ); |
|
} |
|
else |
|
{ |
|
for( i = 0; i < 16; i++ ) |
|
dst[PANTS_HUE_START + i] = src[bottom + 15 - i]; |
|
} |
|
|
|
// last color isn't changed |
|
for( i = 0; i < 255; i++ ) |
|
{ |
|
palSrc[i*pal_size+0] = palette_q1[dst[i]*3+0]; |
|
palSrc[i*pal_size+1] = palette_q1[dst[i]*3+1]; |
|
palSrc[i*pal_size+2] = palette_q1[dst[i]*3+2]; |
|
} |
|
} |
|
|
|
void Image_CopyParms( rgbdata_t *src ) |
|
{ |
|
Image_Reset(); |
|
|
|
image.width = src->width; |
|
image.height = src->height; |
|
image.type = src->type; |
|
image.flags = src->flags; |
|
image.size = src->size; |
|
image.palette = src->palette; // may be NULL |
|
|
|
memcpy( image.fogParams, src->fogParams, sizeof( image.fogParams )); |
|
} |
|
|
|
/* |
|
============ |
|
Image_Copy8bitRGBA |
|
|
|
NOTE: must call Image_GetPaletteXXX before used |
|
============ |
|
*/ |
|
qboolean Image_Copy8bitRGBA( const byte *in, byte *out, int pixels ) |
|
{ |
|
int *iout = (int *)out; |
|
byte *fin = (byte *)in; |
|
byte *col; |
|
int i; |
|
|
|
if( !image.d_currentpal ) |
|
{ |
|
MsgDev( D_ERROR, "Image_Copy8bitRGBA: no palette set\n" ); |
|
return false; |
|
} |
|
|
|
if( !in ) |
|
{ |
|
MsgDev( D_ERROR, "Image_Copy8bitRGBA: no input image\n" ); |
|
return false; |
|
} |
|
|
|
// this is a base image with luma - clear luma pixels |
|
if( image.flags & IMAGE_HAS_LUMA ) |
|
{ |
|
for( i = 0; i < image.width * image.height; i++ ) |
|
fin[i] = fin[i] < 224 ? fin[i] : 0; |
|
} |
|
|
|
// check for color |
|
for( i = 0; i < 256; i++ ) |
|
{ |
|
col = (byte *)&image.d_currentpal[i]; |
|
if( col[0] != col[1] || col[1] != col[2] ) |
|
{ |
|
image.flags |= IMAGE_HAS_COLOR; |
|
break; |
|
} |
|
} |
|
|
|
while( pixels >= 8 ) |
|
{ |
|
iout[0] = image.d_currentpal[in[0]]; |
|
iout[1] = image.d_currentpal[in[1]]; |
|
iout[2] = image.d_currentpal[in[2]]; |
|
iout[3] = image.d_currentpal[in[3]]; |
|
iout[4] = image.d_currentpal[in[4]]; |
|
iout[5] = image.d_currentpal[in[5]]; |
|
iout[6] = image.d_currentpal[in[6]]; |
|
iout[7] = image.d_currentpal[in[7]]; |
|
|
|
in += 8; |
|
iout += 8; |
|
pixels -= 8; |
|
} |
|
|
|
if( pixels & 4 ) |
|
{ |
|
iout[0] = image.d_currentpal[in[0]]; |
|
iout[1] = image.d_currentpal[in[1]]; |
|
iout[2] = image.d_currentpal[in[2]]; |
|
iout[3] = image.d_currentpal[in[3]]; |
|
in += 4; |
|
iout += 4; |
|
} |
|
|
|
if( pixels & 2 ) |
|
{ |
|
iout[0] = image.d_currentpal[in[0]]; |
|
iout[1] = image.d_currentpal[in[1]]; |
|
in += 2; |
|
iout += 2; |
|
} |
|
|
|
if( pixels & 1 ) // last byte |
|
iout[0] = image.d_currentpal[in[0]]; |
|
image.type = PF_RGBA_32; // update image type; |
|
|
|
return true; |
|
} |
|
|
|
static void Image_Resample32LerpLine( const byte *in, byte *out, int inwidth, int outwidth ) |
|
{ |
|
int j, xi, oldx = 0, f, fstep, endx, lerp; |
|
|
|
fstep = (int)(inwidth * 65536.0f / outwidth); |
|
endx = (inwidth-1); |
|
|
|
for( j = 0, f = 0; j < outwidth; j++, f += fstep ) |
|
{ |
|
xi = f>>16; |
|
if( xi != oldx ) |
|
{ |
|
in += (xi - oldx) * 4; |
|
oldx = xi; |
|
} |
|
if( xi < endx ) |
|
{ |
|
lerp = f & 0xFFFF; |
|
*out++ = (byte)((((in[4] - in[0]) * lerp)>>16) + in[0]); |
|
*out++ = (byte)((((in[5] - in[1]) * lerp)>>16) + in[1]); |
|
*out++ = (byte)((((in[6] - in[2]) * lerp)>>16) + in[2]); |
|
*out++ = (byte)((((in[7] - in[3]) * lerp)>>16) + in[3]); |
|
} |
|
else // last pixel of the line has no pixel to lerp to |
|
{ |
|
*out++ = in[0]; |
|
*out++ = in[1]; |
|
*out++ = in[2]; |
|
*out++ = in[3]; |
|
} |
|
} |
|
} |
|
|
|
static void Image_Resample24LerpLine( const byte *in, byte *out, int inwidth, int outwidth ) |
|
{ |
|
int j, xi, oldx = 0, f, fstep, endx, lerp; |
|
|
|
fstep = (int)(inwidth * 65536.0f / outwidth); |
|
endx = (inwidth-1); |
|
|
|
for( j = 0, f = 0; j < outwidth; j++, f += fstep ) |
|
{ |
|
xi = f>>16; |
|
|
|
if( xi != oldx ) |
|
{ |
|
in += (xi - oldx) * 3; |
|
oldx = xi; |
|
} |
|
|
|
if( xi < endx ) |
|
{ |
|
lerp = f & 0xFFFF; |
|
*out++ = (byte)((((in[3] - in[0]) * lerp)>>16) + in[0]); |
|
*out++ = (byte)((((in[4] - in[1]) * lerp)>>16) + in[1]); |
|
*out++ = (byte)((((in[5] - in[2]) * lerp)>>16) + in[2]); |
|
} |
|
else // last pixel of the line has no pixel to lerp to |
|
{ |
|
*out++ = in[0]; |
|
*out++ = in[1]; |
|
*out++ = in[2]; |
|
} |
|
} |
|
} |
|
|
|
void Image_Resample32Lerp( const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight ) |
|
{ |
|
const byte *inrow; |
|
int i, j, r, yi, oldy = 0, f, fstep, lerp, endy = (inheight - 1); |
|
int inwidth4 = inwidth * 4; |
|
int outwidth4 = outwidth * 4; |
|
byte *out = (byte *)outdata; |
|
byte *resamplerow1; |
|
byte *resamplerow2; |
|
|
|
fstep = (int)(inheight * 65536.0f / outheight); |
|
|
|
resamplerow1 = (byte *)Mem_Alloc( host.imagepool, outwidth * 4 * 2); |
|
resamplerow2 = resamplerow1 + outwidth * 4; |
|
|
|
inrow = (const byte *)indata; |
|
|
|
Image_Resample32LerpLine( inrow, resamplerow1, inwidth, outwidth ); |
|
Image_Resample32LerpLine( inrow + inwidth4, resamplerow2, inwidth, outwidth ); |
|
|
|
for( i = 0, f = 0; i < outheight; i++, f += fstep ) |
|
{ |
|
yi = f>>16; |
|
|
|
if( yi < endy ) |
|
{ |
|
lerp = f & 0xFFFF; |
|
if( yi != oldy ) |
|
{ |
|
inrow = (byte *)indata + inwidth4 * yi; |
|
if (yi == oldy+1) memcpy( resamplerow1, resamplerow2, outwidth4 ); |
|
else Image_Resample32LerpLine( inrow, resamplerow1, inwidth, outwidth ); |
|
Image_Resample32LerpLine( inrow + inwidth4, resamplerow2, inwidth, outwidth ); |
|
oldy = yi; |
|
} |
|
|
|
j = outwidth - 4; |
|
|
|
while( j >= 0 ) |
|
{ |
|
LERPBYTE( 0); |
|
LERPBYTE( 1); |
|
LERPBYTE( 2); |
|
LERPBYTE( 3); |
|
LERPBYTE( 4); |
|
LERPBYTE( 5); |
|
LERPBYTE( 6); |
|
LERPBYTE( 7); |
|
LERPBYTE( 8); |
|
LERPBYTE( 9); |
|
LERPBYTE(10); |
|
LERPBYTE(11); |
|
LERPBYTE(12); |
|
LERPBYTE(13); |
|
LERPBYTE(14); |
|
LERPBYTE(15); |
|
out += 16; |
|
resamplerow1 += 16; |
|
resamplerow2 += 16; |
|
j -= 4; |
|
} |
|
|
|
if( j & 2 ) |
|
{ |
|
LERPBYTE( 0); |
|
LERPBYTE( 1); |
|
LERPBYTE( 2); |
|
LERPBYTE( 3); |
|
LERPBYTE( 4); |
|
LERPBYTE( 5); |
|
LERPBYTE( 6); |
|
LERPBYTE( 7); |
|
out += 8; |
|
resamplerow1 += 8; |
|
resamplerow2 += 8; |
|
} |
|
|
|
if( j & 1 ) |
|
{ |
|
LERPBYTE( 0); |
|
LERPBYTE( 1); |
|
LERPBYTE( 2); |
|
LERPBYTE( 3); |
|
out += 4; |
|
resamplerow1 += 4; |
|
resamplerow2 += 4; |
|
} |
|
|
|
resamplerow1 -= outwidth4; |
|
resamplerow2 -= outwidth4; |
|
} |
|
else |
|
{ |
|
if( yi != oldy ) |
|
{ |
|
inrow = (byte *)indata + inwidth4*yi; |
|
if( yi == oldy + 1 ) memcpy( resamplerow1, resamplerow2, outwidth4 ); |
|
else Image_Resample32LerpLine( inrow, resamplerow1, inwidth, outwidth); |
|
oldy = yi; |
|
} |
|
|
|
memcpy( out, resamplerow1, outwidth4 ); |
|
} |
|
} |
|
|
|
Mem_Free( resamplerow1 ); |
|
} |
|
|
|
void Image_Resample32Nolerp( const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight ) |
|
{ |
|
int i, j; |
|
uint frac, fracstep; |
|
int *inrow, *out = (int *)outdata; // relies on int being 4 bytes |
|
|
|
fracstep = inwidth * 0x10000 / outwidth; |
|
|
|
for( i = 0; i < outheight; i++) |
|
{ |
|
inrow = (int *)indata + inwidth * (i * inheight / outheight); |
|
frac = fracstep>>1; |
|
j = outwidth - 4; |
|
|
|
while( j >= 0 ) |
|
{ |
|
out[0] = inrow[frac >> 16];frac += fracstep; |
|
out[1] = inrow[frac >> 16];frac += fracstep; |
|
out[2] = inrow[frac >> 16];frac += fracstep; |
|
out[3] = inrow[frac >> 16];frac += fracstep; |
|
out += 4; |
|
j -= 4; |
|
} |
|
|
|
if( j & 2 ) |
|
{ |
|
out[0] = inrow[frac >> 16];frac += fracstep; |
|
out[1] = inrow[frac >> 16];frac += fracstep; |
|
out += 2; |
|
} |
|
|
|
if( j & 1 ) |
|
{ |
|
out[0] = inrow[frac >> 16];frac += fracstep; |
|
out += 1; |
|
} |
|
} |
|
} |
|
|
|
void Image_Resample24Lerp( const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight ) |
|
{ |
|
const byte *inrow; |
|
int i, j, r, yi, oldy, f, fstep, lerp, endy = (inheight - 1); |
|
int inwidth3 = inwidth * 3; |
|
int outwidth3 = outwidth * 3; |
|
byte *out = (byte *)outdata; |
|
byte *resamplerow1; |
|
byte *resamplerow2; |
|
|
|
fstep = (int)(inheight * 65536.0f / outheight); |
|
|
|
resamplerow1 = (byte *)Mem_Alloc( host.imagepool, outwidth * 3 * 2 ); |
|
resamplerow2 = resamplerow1 + outwidth*3; |
|
|
|
inrow = (const byte *)indata; |
|
oldy = 0; |
|
Image_Resample24LerpLine( inrow, resamplerow1, inwidth, outwidth ); |
|
Image_Resample24LerpLine( inrow + inwidth3, resamplerow2, inwidth, outwidth ); |
|
|
|
for( i = 0, f = 0; i < outheight; i++, f += fstep ) |
|
{ |
|
yi = f>>16; |
|
|
|
if( yi < endy ) |
|
{ |
|
lerp = f & 0xFFFF; |
|
if( yi != oldy ) |
|
{ |
|
inrow = (byte *)indata + inwidth3 * yi; |
|
if( yi == oldy + 1) memcpy( resamplerow1, resamplerow2, outwidth3 ); |
|
else Image_Resample24LerpLine( inrow, resamplerow1, inwidth, outwidth ); |
|
Image_Resample24LerpLine( inrow + inwidth3, resamplerow2, inwidth, outwidth ); |
|
oldy = yi; |
|
} |
|
|
|
j = outwidth - 4; |
|
|
|
while( j >= 0 ) |
|
{ |
|
LERPBYTE( 0); |
|
LERPBYTE( 1); |
|
LERPBYTE( 2); |
|
LERPBYTE( 3); |
|
LERPBYTE( 4); |
|
LERPBYTE( 5); |
|
LERPBYTE( 6); |
|
LERPBYTE( 7); |
|
LERPBYTE( 8); |
|
LERPBYTE( 9); |
|
LERPBYTE(10); |
|
LERPBYTE(11); |
|
out += 12; |
|
resamplerow1 += 12; |
|
resamplerow2 += 12; |
|
j -= 4; |
|
} |
|
|
|
if( j & 2 ) |
|
{ |
|
LERPBYTE( 0); |
|
LERPBYTE( 1); |
|
LERPBYTE( 2); |
|
LERPBYTE( 3); |
|
LERPBYTE( 4); |
|
LERPBYTE( 5); |
|
out += 6; |
|
resamplerow1 += 6; |
|
resamplerow2 += 6; |
|
} |
|
|
|
if( j & 1 ) |
|
{ |
|
LERPBYTE( 0); |
|
LERPBYTE( 1); |
|
LERPBYTE( 2); |
|
out += 3; |
|
resamplerow1 += 3; |
|
resamplerow2 += 3; |
|
} |
|
|
|
resamplerow1 -= outwidth3; |
|
resamplerow2 -= outwidth3; |
|
} |
|
else |
|
{ |
|
if( yi != oldy ) |
|
{ |
|
inrow = (byte *)indata + inwidth3*yi; |
|
if( yi == oldy + 1) memcpy( resamplerow1, resamplerow2, outwidth3 ); |
|
else Image_Resample24LerpLine( inrow, resamplerow1, inwidth, outwidth ); |
|
oldy = yi; |
|
} |
|
|
|
memcpy( out, resamplerow1, outwidth3 ); |
|
} |
|
} |
|
|
|
Mem_Free( resamplerow1 ); |
|
} |
|
|
|
void Image_Resample24Nolerp( const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight ) |
|
{ |
|
uint frac, fracstep; |
|
int i, j, f, inwidth3 = inwidth * 3; |
|
byte *inrow, *out = (byte *)outdata; |
|
|
|
fracstep = inwidth * 0x10000 / outwidth; |
|
|
|
for( i = 0; i < outheight; i++) |
|
{ |
|
inrow = (byte *)indata + inwidth3 * (i * inheight / outheight); |
|
frac = fracstep>>1; |
|
j = outwidth - 4; |
|
|
|
while( j >= 0 ) |
|
{ |
|
f = (frac >> 16)*3; |
|
*out++ = inrow[f+0]; |
|
*out++ = inrow[f+1]; |
|
*out++ = inrow[f+2]; |
|
frac += fracstep; |
|
f = (frac >> 16)*3; |
|
*out++ = inrow[f+0]; |
|
*out++ = inrow[f+1]; |
|
*out++ = inrow[f+2]; |
|
frac += fracstep; |
|
f = (frac >> 16)*3; |
|
*out++ = inrow[f+0]; |
|
*out++ = inrow[f+1]; |
|
*out++ = inrow[f+2]; |
|
frac += fracstep; |
|
f = (frac >> 16)*3; |
|
*out++ = inrow[f+0]; |
|
*out++ = inrow[f+1]; |
|
*out++ = inrow[f+2]; |
|
frac += fracstep; |
|
j -= 4; |
|
} |
|
|
|
if( j & 2 ) |
|
{ |
|
f = (frac >> 16)*3; |
|
*out++ = inrow[f+0]; |
|
*out++ = inrow[f+1]; |
|
*out++ = inrow[f+2]; |
|
frac += fracstep; |
|
f = (frac >> 16)*3; |
|
*out++ = inrow[f+0]; |
|
*out++ = inrow[f+1]; |
|
*out++ = inrow[f+2]; |
|
frac += fracstep; |
|
out += 2; |
|
} |
|
|
|
if( j & 1 ) |
|
{ |
|
f = (frac >> 16)*3; |
|
*out++ = inrow[f+0]; |
|
*out++ = inrow[f+1]; |
|
*out++ = inrow[f+2]; |
|
frac += fracstep; |
|
out += 1; |
|
} |
|
} |
|
} |
|
|
|
void Image_Resample8Nolerp( const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight ) |
|
{ |
|
int i, j; |
|
byte *in, *inrow; |
|
uint frac, fracstep; |
|
byte *out = (byte *)outdata; |
|
|
|
in = (byte *)indata; |
|
fracstep = inwidth * 0x10000 / outwidth; |
|
|
|
for( i = 0; i < outheight; i++, out += outwidth ) |
|
{ |
|
inrow = in + inwidth*(i*inheight/outheight); |
|
frac = fracstep>>1; |
|
|
|
for( j = 0; j < outwidth; j++ ) |
|
{ |
|
out[j] = inrow[frac>>16]; |
|
frac += fracstep; |
|
} |
|
} |
|
} |
|
|
|
/* |
|
================ |
|
Image_Resample |
|
================ |
|
*/ |
|
byte *Image_ResampleInternal( const void *indata, int inwidth, int inheight, int outwidth, int outheight, int type, qboolean *resampled ) |
|
{ |
|
qboolean quality = Image_CheckFlag( IL_USE_LERPING ); |
|
|
|
// nothing to resample ? |
|
if( inwidth == outwidth && inheight == outheight ) |
|
{ |
|
*resampled = false; |
|
return (byte *)indata; |
|
} |
|
|
|
// alloc new buffer |
|
switch( type ) |
|
{ |
|
case PF_INDEXED_24: |
|
case PF_INDEXED_32: |
|
image.tempbuffer = (byte *)Mem_Realloc( host.imagepool, image.tempbuffer, outwidth * outheight ); |
|
Image_Resample8Nolerp( indata, inwidth, inheight, image.tempbuffer, outwidth, outheight ); |
|
break; |
|
case PF_RGB_24: |
|
case PF_BGR_24: |
|
image.tempbuffer = (byte *)Mem_Realloc( host.imagepool, image.tempbuffer, outwidth * outheight * 3 ); |
|
if( quality ) Image_Resample24Lerp( indata, inwidth, inheight, image.tempbuffer, outwidth, outheight ); |
|
else Image_Resample24Nolerp( indata, inwidth, inheight, image.tempbuffer, outwidth, outheight ); |
|
break; |
|
case PF_RGBA_32: |
|
case PF_BGRA_32: |
|
image.tempbuffer = (byte *)Mem_Realloc( host.imagepool, image.tempbuffer, outwidth * outheight * 4 ); |
|
if( quality ) Image_Resample32Lerp( indata, inwidth, inheight, image.tempbuffer, outwidth, outheight ); |
|
else Image_Resample32Nolerp( indata, inwidth, inheight, image.tempbuffer, outwidth, outheight ); |
|
break; |
|
default: |
|
MsgDev( D_WARN, "Image_Resample: unsupported format %s\n", PFDesc[type].name ); |
|
*resampled = false; |
|
return (byte *)indata; |
|
} |
|
|
|
*resampled = true; |
|
return image.tempbuffer; |
|
} |
|
|
|
/* |
|
================ |
|
Image_Flip |
|
================ |
|
*/ |
|
byte *Image_FlipInternal( const byte *in, word *srcwidth, word *srcheight, int type, int flags ) |
|
{ |
|
int i, x, y; |
|
word width = *srcwidth; |
|
word height = *srcheight; |
|
int samples = PFDesc[type].bpp; |
|
qboolean flip_x = ( flags & IMAGE_FLIP_X ) ? true : false; |
|
qboolean flip_y = ( flags & IMAGE_FLIP_Y ) ? true : false; |
|
qboolean flip_i = ( flags & IMAGE_ROT_90 ) ? true : false; |
|
int row_inc = ( flip_y ? -samples : samples ) * width; |
|
int col_inc = ( flip_x ? -samples : samples ); |
|
int row_ofs = ( flip_y ? ( height - 1 ) * width * samples : 0 ); |
|
int col_ofs = ( flip_x ? ( width - 1 ) * samples : 0 ); |
|
const byte *p, *line; |
|
byte *out; |
|
|
|
// nothing to process |
|
if( !FBitSet( flags, IMAGE_FLIP_X|IMAGE_FLIP_Y|IMAGE_ROT_90 )) |
|
return (byte *)in; |
|
|
|
switch( type ) |
|
{ |
|
case PF_INDEXED_24: |
|
case PF_INDEXED_32: |
|
case PF_RGB_24: |
|
case PF_BGR_24: |
|
case PF_RGBA_32: |
|
case PF_BGRA_32: |
|
image.tempbuffer = Mem_Realloc( host.imagepool, image.tempbuffer, width * height * samples ); |
|
break; |
|
default: |
|
MsgDev( D_WARN, "Image_Flip: unsupported format %s\n", PFDesc[type].name ); |
|
return (byte *)in; |
|
} |
|
|
|
out = image.tempbuffer; |
|
|
|
if( flip_i ) |
|
{ |
|
for( x = 0, line = in + col_ofs; x < width; x++, line += col_inc ) |
|
for( y = 0, p = line + row_ofs; y < height; y++, p += row_inc, out += samples ) |
|
for( i = 0; i < samples; i++ ) |
|
out[i] = p[i]; |
|
} |
|
else |
|
{ |
|
for( y = 0, line = in + row_ofs; y < height; y++, line += row_inc ) |
|
for( x = 0, p = line + col_ofs; x < width; x++, p += col_inc, out += samples ) |
|
for( i = 0; i < samples; i++ ) |
|
out[i] = p[i]; |
|
} |
|
|
|
// update dims |
|
if( FBitSet( flags, IMAGE_ROT_90 )) |
|
{ |
|
*srcwidth = height; |
|
*srcheight = width; |
|
} |
|
else |
|
{ |
|
*srcwidth = width; |
|
*srcheight = height; |
|
} |
|
|
|
return image.tempbuffer; |
|
} |
|
|
|
byte *Image_CreateLumaInternal( byte *fin, int width, int height, int type, int flags ) |
|
{ |
|
byte *out; |
|
int i; |
|
|
|
if( !FBitSet( flags, IMAGE_HAS_LUMA )) |
|
return (byte *)fin; |
|
|
|
switch( type ) |
|
{ |
|
case PF_INDEXED_24: |
|
case PF_INDEXED_32: |
|
out = image.tempbuffer = Mem_Realloc( host.imagepool, image.tempbuffer, width * height ); |
|
for( i = 0; i < width * height; i++ ) |
|
*out++ = fin[i] >= 224 ? fin[i] : 0; |
|
break; |
|
default: |
|
// another formats does ugly result :( |
|
Con_Printf( S_ERROR "Image_MakeLuma: unsupported format %s\n", PFDesc[type].name ); |
|
return (byte *)fin; |
|
} |
|
|
|
return image.tempbuffer; |
|
} |
|
|
|
qboolean Image_AddIndexedImageToPack( const byte *in, int width, int height ) |
|
{ |
|
int mipsize = width * height; |
|
qboolean expand_to_rgba = true; |
|
|
|
if( Image_CheckFlag( IL_KEEP_8BIT )) |
|
expand_to_rgba = false; |
|
else if( FBitSet( image.flags, IMAGE_HAS_LUMA|IMAGE_QUAKESKY )) |
|
expand_to_rgba = false; |
|
|
|
image.size = mipsize; |
|
|
|
if( expand_to_rgba ) image.size *= 4; |
|
else Image_CopyPalette32bit(); |
|
|
|
// reallocate image buffer |
|
image.rgba = Mem_Alloc( host.imagepool, image.size ); |
|
if( !expand_to_rgba ) memcpy( image.rgba, in, image.size ); |
|
else if( !Image_Copy8bitRGBA( in, image.rgba, mipsize )) |
|
return false; // probably pallette not installed |
|
|
|
return true; |
|
} |
|
|
|
/* |
|
============= |
|
Image_Decompress |
|
|
|
force to unpack any image to 32-bit buffer |
|
============= |
|
*/ |
|
qboolean Image_Decompress( const byte *data ) |
|
{ |
|
byte *fin, *fout; |
|
int i, size; |
|
|
|
if( !data ) return false; |
|
fin = (byte *)data; |
|
|
|
size = image.width * image.height * 4; |
|
image.tempbuffer = Mem_Realloc( host.imagepool, image.tempbuffer, size ); |
|
fout = image.tempbuffer; |
|
|
|
switch( PFDesc[image.type].format ) |
|
{ |
|
case PF_INDEXED_24: |
|
if( image.flags & IMAGE_HAS_ALPHA ) |
|
{ |
|
if( image.flags & IMAGE_COLORINDEX ) |
|
Image_GetPaletteLMP( image.palette, LUMP_GRADIENT ); |
|
else Image_GetPaletteLMP( image.palette, LUMP_MASKED ); |
|
} |
|
else Image_GetPaletteLMP( image.palette, LUMP_NORMAL ); |
|
// intentional falltrough |
|
case PF_INDEXED_32: |
|
if( !image.d_currentpal ) image.d_currentpal = (uint *)image.palette; |
|
if( !Image_Copy8bitRGBA( fin, fout, image.width * image.height )) |
|
return false; |
|
break; |
|
case PF_BGR_24: |
|
for (i = 0; i < image.width * image.height; i++ ) |
|
{ |
|
fout[(i<<2)+0] = fin[i*3+2]; |
|
fout[(i<<2)+1] = fin[i*3+1]; |
|
fout[(i<<2)+2] = fin[i*3+0]; |
|
fout[(i<<2)+3] = 255; |
|
} |
|
break; |
|
case PF_RGB_24: |
|
for (i = 0; i < image.width * image.height; i++ ) |
|
{ |
|
fout[(i<<2)+0] = fin[i*3+0]; |
|
fout[(i<<2)+1] = fin[i*3+1]; |
|
fout[(i<<2)+2] = fin[i*3+2]; |
|
fout[(i<<2)+3] = 255; |
|
} |
|
break; |
|
case PF_BGRA_32: |
|
for( i = 0; i < image.width * image.height; i++ ) |
|
{ |
|
fout[i*4+0] = fin[i*4+2]; |
|
fout[i*4+1] = fin[i*4+1]; |
|
fout[i*4+2] = fin[i*4+0]; |
|
fout[i*4+3] = fin[i*4+3]; |
|
} |
|
break; |
|
case PF_RGBA_32: |
|
// fast default case |
|
memcpy( fout, fin, size ); |
|
break; |
|
default: return false; |
|
} |
|
|
|
// set new size |
|
image.size = size; |
|
|
|
return true; |
|
} |
|
|
|
rgbdata_t *Image_DecompressInternal( rgbdata_t *pic ) |
|
{ |
|
// quick case to reject unneeded conversions |
|
if( pic->type == PF_RGBA_32 ) |
|
return pic; |
|
|
|
Image_CopyParms( pic ); |
|
image.size = image.ptr = 0; |
|
|
|
Image_Decompress( pic->buffer ); |
|
|
|
// now we can change type to RGBA |
|
pic->type = PF_RGBA_32; |
|
|
|
pic->buffer = Mem_Realloc( host.imagepool, pic->buffer, image.size ); |
|
memcpy( pic->buffer, image.tempbuffer, image.size ); |
|
if( pic->palette ) Mem_Free( pic->palette ); |
|
pic->flags = image.flags; |
|
pic->palette = NULL; |
|
|
|
return pic; |
|
} |
|
|
|
rgbdata_t *Image_LightGamma( rgbdata_t *pic ) |
|
{ |
|
byte *in = (byte *)pic->buffer; |
|
int i; |
|
|
|
if( pic->type != PF_RGBA_32 ) |
|
return pic; |
|
|
|
for( i = 0; i < pic->width * pic->height; i++, in += 4 ) |
|
{ |
|
in[0] = LightToTexGamma( in[0] ); |
|
in[1] = LightToTexGamma( in[1] ); |
|
in[2] = LightToTexGamma( in[2] ); |
|
} |
|
|
|
return pic; |
|
} |
|
|
|
qboolean Image_RemapInternal( rgbdata_t *pic, int topColor, int bottomColor ) |
|
{ |
|
if( !pic->palette ) |
|
{ |
|
MsgDev( D_ERROR, "Image_Remap: palette is missed\n" ); |
|
return false; |
|
} |
|
|
|
switch( pic->type ) |
|
{ |
|
case PF_INDEXED_24: |
|
break; |
|
case PF_INDEXED_32: |
|
Image_ConvertPalTo24bit( pic ); |
|
break; |
|
default: |
|
MsgDev( D_ERROR, "Image_Remap: unsupported format %s\n", PFDesc[pic->type].name ); |
|
return false; |
|
} |
|
|
|
if( Image_ComparePalette( pic->palette ) == PAL_QUAKE1 ) |
|
{ |
|
Image_PaletteTranslate( pic->palette, topColor * 16, bottomColor * 16, 3 ); |
|
} |
|
else |
|
{ |
|
// g-cont. preview images has a swapped top and bottom colors. I don't know why. |
|
Image_PaletteHueReplace( pic->palette, topColor, SUIT_HUE_START, SUIT_HUE_END, 3 ); |
|
Image_PaletteHueReplace( pic->palette, bottomColor, PLATE_HUE_START, PLATE_HUE_END, 3 ); |
|
} |
|
|
|
return true; |
|
} |
|
|
|
/* |
|
================== |
|
Image_ApplyFilter |
|
|
|
Applies a 5 x 5 filtering matrix to the texture, then runs it through a simulated OpenGL texture environment |
|
blend with the original data to derive a new texture. Freaky, funky, and *f--king* *fantastic*. You can do |
|
reasonable enough "fake bumpmapping" with this baby... |
|
|
|
Filtering algorithm from http://www.student.kuleuven.ac.be/~m0216922/CG/filtering.html |
|
All credit due |
|
================== |
|
*/ |
|
qboolean Image_ApplyFilter( rgbdata_t *pic, int filter, float factor, float bias, flFlags_t flags, GLenum blendFunc ) |
|
{ |
|
int i, x, y; |
|
uint *fin, *fout; |
|
size_t size; |
|
|
|
// first expand the image into 32-bit buffer |
|
pic = Image_DecompressInternal( pic ); |
|
|
|
size = image.width * image.height * 4; |
|
image.tempbuffer = Mem_Realloc( host.imagepool, image.tempbuffer, size ); |
|
fout = (uint *)image.tempbuffer; |
|
fin = (uint *)pic->buffer; |
|
|
|
for( x = 0; x < image.width; x++ ) |
|
{ |
|
for( y = 0; y < image.height; y++ ) |
|
{ |
|
vec3_t vout = { 0.0f, 0.0f, 0.0f }; |
|
int pos_x, pos_y; |
|
|
|
for( pos_x = 0; pos_x < FILTER_SIZE; pos_x++ ) |
|
{ |
|
for( pos_y = 0; pos_y < FILTER_SIZE; pos_y++ ) |
|
{ |
|
int img_x = (x - (FILTER_SIZE / 2) + pos_x + image.width) % image.width; |
|
int img_y = (y - (FILTER_SIZE / 2) + pos_y + image.height) % image.height; |
|
|
|
// casting's a unary operation anyway, so the othermost set of brackets in the left part |
|
// of the rvalue should not be necessary... but i'm paranoid when it comes to C... |
|
vout[0] += ((float)((byte *)&fin[img_y * image.width + img_x])[0]) * FILTER[filter][pos_x][pos_y]; |
|
vout[1] += ((float)((byte *)&fin[img_y * image.width + img_x])[1]) * FILTER[filter][pos_x][pos_y]; |
|
vout[2] += ((float)((byte *)&fin[img_y * image.width + img_x])[2]) * FILTER[filter][pos_x][pos_y]; |
|
} |
|
} |
|
|
|
// multiply by factor, add bias, and clamp |
|
for( i = 0; i < 3; i++ ) |
|
{ |
|
vout[i] *= factor; |
|
vout[i] += bias; |
|
vout[i] = bound( 0.0f, vout[i], 255.0f ); |
|
} |
|
|
|
if( flags & FILTER_GRAYSCALE ) |
|
{ |
|
// NTSC greyscale conversion standard |
|
float avg = (vout[0] * 30.0f + vout[1] * 59.0f + vout[2] * 11.0f) / 100.0f; |
|
|
|
// divide by 255 so GL operations work as expected |
|
vout[0] = avg / 255.0f; |
|
vout[1] = avg / 255.0f; |
|
vout[2] = avg / 255.0f; |
|
} |
|
|
|
// write to temp - first, write data in (to get the alpha channel quickly and |
|
// easily, which will be left well alone by this particular operation...!) |
|
fout[y * image.width + x] = fin[y * image.width + x]; |
|
|
|
// now write in each element, applying the blend operator. blend |
|
// operators are based on standard OpenGL TexEnv modes, and the |
|
// formulas are derived from the OpenGL specs (http://www.opengl.org). |
|
for( i = 0; i < 3; i++ ) |
|
{ |
|
// divide by 255 so GL operations work as expected |
|
float src = ((float)((byte *)&fin[y * image.width + x])[i]) / 255.0f; |
|
float tmp; |
|
|
|
switch( blendFunc ) |
|
{ |
|
case GL_ADD: |
|
tmp = vout[i] + src; |
|
break; |
|
case GL_BLEND: |
|
// default is FUNC_ADD here |
|
// CsS + CdD works out as Src * Dst * 2 |
|
tmp = vout[i] * src * 2.0f; |
|
break; |
|
case GL_DECAL: |
|
// same as GL_REPLACE unless there's alpha, which we ignore for this |
|
case GL_REPLACE: |
|
tmp = vout[i]; |
|
break; |
|
case GL_ADD_SIGNED: |
|
tmp = (vout[i] + src) - 0.5f; |
|
break; |
|
case GL_MODULATE: |
|
default: // same as default |
|
tmp = vout[i] * src; |
|
break; |
|
} |
|
|
|
// multiply back by 255 to get the proper byte scale |
|
tmp *= 255.0f; |
|
|
|
// bound the temp target again now, cos the operation may have thrown it out |
|
tmp = bound( 0.0f, tmp, 255.0f ); |
|
// and copy it in |
|
((byte *)&fout[y * image.width + x])[i] = (byte)tmp; |
|
} |
|
} |
|
} |
|
|
|
// copy result back |
|
memcpy( fin, fout, size ); |
|
|
|
return true; |
|
} |
|
|
|
qboolean Image_Process( rgbdata_t **pix, int width, int height, uint flags, imgfilter_t *filter ) |
|
{ |
|
rgbdata_t *pic = *pix; |
|
qboolean result = true; |
|
byte *out; |
|
|
|
// check for buffers |
|
if( !pic || !pic->buffer ) |
|
{ |
|
MsgDev( D_WARN, "Image_Process: NULL image\n" ); |
|
image.force_flags = 0; |
|
return false; |
|
} |
|
|
|
if( !flags && !filter ) |
|
{ |
|
// clear any force flags |
|
image.force_flags = 0; |
|
return false; // no operation specfied |
|
} |
|
|
|
if( FBitSet( flags, IMAGE_MAKE_LUMA )) |
|
{ |
|
out = Image_CreateLumaInternal( pic->buffer, pic->width, pic->height, pic->type, pic->flags ); |
|
if( pic->buffer != out ) memcpy( pic->buffer, image.tempbuffer, pic->size ); |
|
ClearBits( pic->flags, IMAGE_HAS_LUMA ); |
|
} |
|
|
|
if( flags & IMAGE_REMAP ) |
|
{ |
|
// NOTE: user should keep copy of indexed image manually for new changes |
|
if( Image_RemapInternal( pic, width, height )) |
|
pic = Image_DecompressInternal( pic ); |
|
} |
|
|
|
// update format to RGBA if any |
|
if( flags & IMAGE_FORCE_RGBA ) pic = Image_DecompressInternal( pic ); |
|
if( flags & IMAGE_LIGHTGAMMA ) pic = Image_LightGamma( pic ); |
|
|
|
if( filter ) Image_ApplyFilter( pic, filter->filter, filter->factor, filter->bias, filter->flags, filter->blendFunc ); |
|
|
|
out = Image_FlipInternal( pic->buffer, &pic->width, &pic->height, pic->type, flags ); |
|
if( pic->buffer != out ) memcpy( pic->buffer, image.tempbuffer, pic->size ); |
|
|
|
if( FBitSet( flags, IMAGE_RESAMPLE ) && width > 0 && height > 0 ) |
|
{ |
|
int w = bound( 1, width, IMAGE_MAXWIDTH ); // 1 - 4096 |
|
int h = bound( 1, height, IMAGE_MAXHEIGHT); // 1 - 4096 |
|
qboolean resampled = false; |
|
|
|
out = Image_ResampleInternal((uint *)pic->buffer, pic->width, pic->height, w, h, pic->type, &resampled ); |
|
|
|
if( resampled ) // resampled or filled |
|
{ |
|
MsgDev( D_NOTE, "Image_Resample: from[%d x %d] to [%d x %d]\n", pic->width, pic->height, w, h ); |
|
pic->width = w, pic->height = h; |
|
pic->size = w * h * PFDesc[pic->type].bpp; |
|
Mem_Free( pic->buffer ); // free original image buffer |
|
pic->buffer = Image_Copy( pic->size ); // unzone buffer (don't touch image.tempbuffer) |
|
} |
|
else |
|
{ |
|
// not a resampled or filled |
|
result = false; |
|
} |
|
} |
|
|
|
// quantize image |
|
if( FBitSet( flags, IMAGE_QUANTIZE )) |
|
pic = Image_Quantize( pic ); |
|
|
|
*pix = pic; |
|
|
|
// clear any force flags |
|
image.force_flags = 0; |
|
|
|
return result; |
|
} |