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 "maths.h"
  29 #include "gr.h"
  30 #include "3d.h"
  31 #include "inferno.h"
  32 #include "strutil.h"
  33
  34
  35 extern void g3_remap_interp_colors(void);
  36
  37 char Current_level_palette[FILENAME_LEN];
  38
  39 extern int Color_0_31_0, HUD_color;
  40
  41 //background for boxed messages
  42 typedef struct bkg {
  43         short x, y, w, h;                       // The location of the menu.
  44         grs_bitmap * bmp;                       // The background under the menu.
  45 } bkg;
  46
  47 extern bkg bg;
  48
  49 void load_background_bitmap(void);
  50
  51 char last_palette_loaded[FILENAME_LEN]="";
  52 char last_palette_loaded_pig[FILENAME_LEN]="";
  53
  54 ubyte last_palette_for_color_fonts[768];
  55
  56 void remap_fonts_and_menus(int do_fadetable_hack)
  57 {
  58         nm_remap_background();
  59         gr_remap_color_fonts();
  60
  61         if (do_fadetable_hack) {
  62                 int i;
  63                 float g = 1.0;
  64                 double intensity;
  65                 ubyte gamma[64];
  66
  67                 intensity = (double)(14)/(double)(32);
  68                 for (i=0;i<64;i++)
  69                         gamma[i] = (int)((pow(intensity, 1.0/g)*i) + 0.5);
  70                 for (i=0;i<256;i++) {
  71                         int c;
  72                         c = gr_find_closest_color(gamma[gr_palette[i*3]],gamma[gr_palette[i*3+1]],gamma[gr_palette[i*3+2]]);
  73                         gr_fade_table[14*256+i] = c;
  74                 }
  75         }
  76
  77         memcpy(last_palette_for_color_fonts,gr_palette,sizeof(last_palette_for_color_fonts));
  78 }
  79
  80 //load a palette by name. returns 1 if new palette loaded, else 0
  81 //if used_for_level is set, load pig, etc.
  82 //if no_change_screen is set, the current screen does not get remapped,
  83 //and the hardware palette does not get changed
  84 int load_palette(char *name,int used_for_level,int no_change_screen)
  85 {
  86         char pigname[FILENAME_LEN];
  87         ubyte old_pal[256*3];
  88
  89         //special hack to tell that palette system about a pig that's been loaded elsewhere
  90         if (used_for_level == -2) {
  91                 strncpy(last_palette_loaded_pig,name,sizeof(last_palette_loaded_pig));
  92                 return 1;
  93         }
  94
  95         if (name==NULL)
  96                 name = last_palette_loaded_pig;
  97
  98         if (used_for_level && stricmp(last_palette_loaded_pig,name) != 0) {
  99
 100                 _splitpath(name,NULL,NULL,pigname,NULL);
 101                 strcat(pigname,".pig");
 102                 //if not editor, load pig first so small install message can come
 103                 //up in old palette.  If editor version, we must load the pig after
 104                 //the palette is loaded so we can remap new textures.
 105                 #ifndef EDITOR
 106                 piggy_new_pigfile(pigname);
 107                 #endif
 108         }
 109
 110         if (stricmp(last_palette_loaded,name) != 0) {
 111
 112                 memcpy(old_pal,gr_palette,sizeof(old_pal));
 113
 114                 strncpy(last_palette_loaded,name,sizeof(last_palette_loaded));
 115
 116                 gr_use_palette_table(name);
 117
 118                 if (Function_mode == FMODE_GAME && !no_change_screen)
 119                         gr_remap_bitmap_good( &grd_curscreen->sc_canvas.cv_bitmap, old_pal, -1, -1 );
 120
 121         if (bg.bmp)
 122             gr_remap_bitmap_good( bg.bmp, old_pal, -1, -1 );
 123
 124                 if (!gr_palette_faded_out && !no_change_screen)
 125                         gr_palette_load(gr_palette);
 126
 127                 remap_fonts_and_menus(0);
 128
 129                 Color_0_31_0 = -1;              //for gauges
 130                 HUD_color = -1;
 131
 132                 load_background_bitmap();
 133
 134                 g3_remap_interp_colors();
 135         }
 136
 137
 138         if (used_for_level && stricmp(last_palette_loaded_pig,name) != 0) {
 139
 140                 strncpy(last_palette_loaded_pig,name,sizeof(last_palette_loaded_pig));
 141
 142                 #ifdef EDITOR
 143                 piggy_new_pigfile(pigname);
 144                 #endif
 145
 146                 texmerge_flush();
 147                 rle_cache_flush();
 148         }
 149
 150         return 1;
 151 }
 152