main/gamepal.c

   1 /*
   2 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   3 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   4 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   5 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   6 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   7 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   8 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
   9 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  10 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  11 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  12 */
  13
  14 /*
  15  *
  16  * Functions for loading palettes
  17  *
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include <conf.h>
  22 #endif
  23
  24 #include <string.h>
  25 #include <stdlib.h>
  26 #include <math.h>
  27
  28 #include "fix.h"
  29 #include "vecmat.h"
  30 #include "gr.h"
  31 #include "3d.h"
  32 #include "palette.h"
  33 #include "rle.h"
  34
  35 #include "inferno.h"
  36 #include "gamepal.h"
  37 #include "mission.h"
  38 #include "newmenu.h"
  39 #include "texmerge.h"
  40 #include "piggy.h"
  41 #include "strutil.h"
  42
  43 extern void g3_remap_interp_colors();
  44
  45 char Current_level_palette[FILENAME_LEN];
  46
  47 extern int Color_0_31_0, HUD_color;
  48
  49 //background for boxed messages
  50 typedef struct bkg {
  51         short x, y, w, h;                       // The location of the menu.
  52         grs_bitmap * bmp;                       // The background under the menu.
  53 } bkg;
  54
  55 extern bkg bg;
  56
  57 void load_background_bitmap(void);
  58
  59 char last_palette_loaded[FILENAME_LEN]="";
  60 char last_palette_loaded_pig[FILENAME_LEN]="";
  61
  62 ubyte last_palette_for_color_fonts[768];
  63
  64 void remap_fonts_and_menus(int do_fadetable_hack)
  65 {
  66         nm_remap_background();
  67         gr_remap_color_fonts();
  68
  69         if (do_fadetable_hack) {
  70                 int i;
  71                 float g = 1.0;
  72                 double intensity;
  73                 ubyte gamma[64];
  74
  75                 intensity = (double)(14)/(double)(32);
  76                 for (i=0;i<64;i++)
  77                         gamma[i] = (int)((pow(intensity, 1.0/g)*i) + 0.5);
  78                 for (i=0;i<256;i++) {
  79                         int c;
  80                         c = gr_find_closest_color(gamma[gr_palette[i*3]],gamma[gr_palette[i*3+1]],gamma[gr_palette[i*3+2]]);
  81                         gr_fade_table[14*256+i] = c;
  82                 }
  83         }
  84
  85         memcpy(last_palette_for_color_fonts,gr_palette,sizeof(last_palette_for_color_fonts));
  86 }
  87
  88 //load a palette by name. returns 1 if new palette loaded, else 0
  89 //if used_for_level is set, load pig, etc.
  90 //if no_change_screen is set, the current screen does not get remapped,
  91 //and the hardware palette does not get changed
  92 int load_palette(char *name,int used_for_level,int no_change_screen)
  93 {
  94         char pigname[FILENAME_LEN];
  95         ubyte old_pal[256*3];
  96
  97         //special hack to tell that palette system about a pig that's been loaded elsewhere
  98         if (used_for_level == -2) {
  99                 strncpy(last_palette_loaded_pig,name,sizeof(last_palette_loaded_pig));
 100                 return 1;
 101         }
 102
 103         if (name==NULL)
 104                 name = last_palette_loaded_pig;
 105
 106         if (used_for_level && stricmp(last_palette_loaded_pig,name) != 0) {
 107
 108                 _splitpath(name,NULL,NULL,pigname,NULL);
 109                 strcat(pigname,".pig");
 110                 //if not editor, load pig first so small install message can come
 111                 //up in old palette.  If editor version, we must load the pig after
 112                 //the palette is loaded so we can remap new textures.
 113                 #ifndef EDITOR
 114                 piggy_new_pigfile(pigname);
 115                 #endif
 116         }
 117
 118         if (stricmp(last_palette_loaded,name) != 0) {
 119
 120                 memcpy(old_pal,gr_palette,sizeof(old_pal));
 121
 122                 strncpy(last_palette_loaded,name,sizeof(last_palette_loaded));
 123
 124                 gr_use_palette_table(name);
 125
 126                 if (Function_mode == FMODE_GAME && !no_change_screen)
 127                         gr_remap_bitmap_good( &grd_curscreen->sc_canvas.cv_bitmap, old_pal, -1, -1 );
 128
 129         if (bg.bmp)
 130             gr_remap_bitmap_good( bg.bmp, old_pal, -1, -1 );
 131
 132                 if (!gr_palette_faded_out && !no_change_screen)
 133                         gr_palette_load(gr_palette);
 134
 135                 remap_fonts_and_menus(0);
 136
 137                 Color_0_31_0 = -1;              //for gauges
 138                 HUD_color = -1;
 139
 140                 load_background_bitmap();
 141
 142                 g3_remap_interp_colors();
 143         }
 144
 145
 146         if (used_for_level && stricmp(last_palette_loaded_pig,name) != 0) {
 147
 148                 strncpy(last_palette_loaded_pig,name,sizeof(last_palette_loaded_pig));
 149
 150                 #ifdef EDITOR
 151                 piggy_new_pigfile(pigname);
 152                 #endif
 153
 154                 texmerge_flush();
 155                 rle_cache_flush();
 156         }
 157
 158         return 1;
 159 }
 160