display.c

   1 /*
   2  * display.c - visualization api
   3  *
   4  */
   5
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8
   9 #include "defines.h"
  10
  11 int display_init(int x,int y,int z,display *display,void *cell,int *argc,char **argv)
  12 {
  13 #ifdef USE_DFB_API
  14  DFBSurfaceDescription surface_dsc;
  15 #endif
  16
  17  /* store dimensions */
  18  display->max_x=x;
  19  display->max_y=y;
  20  display->max_z=z;
  21  /* store pointer to cells */
  22  display->cell_p=cell;
  23
  24  /* the api(s) */
  25 #ifdef USE_DFB_API
  26  DirectFBInit(argc,&argv);
  27  DirectFBCreate(&(display->dfb));
  28  display->dfb->SetCooperativeLevel(display->dfb,DFSCL_FULLSCREEN);
  29  surface_dsc.flags=DSDESC_CAPS;
  30  surface_dsc.caps=DSCAPS_PRIMARY|DSCAPS_FLIPPING;
  31  display->dfb->CreateSurface(display->dfb,&surface_dsc,&(display->primary_surface));
  32  display->primary_surface->GetSize(display->primary_surface,&(display->screen_width),&(display->screen_height));
  33
  34 #endif
  35  return 23;
  36 }
  37
  38 int display_release(display *display)
  39 {
  40 #ifdef USE_DFB_API
  41  display->primary_surface->Release(display->primary_surface);
  42  display->dfb->Release(display->dfb);
  43 #endif
  44
  45  return 23;
  46 }
  47
  48 #ifdef USE_DFB_API
  49 int dfb_choose_color(u32 *cell_p,unsigned char *r,unsigned char *g,unsigned char *b)
  50 {
  51  if((*cell_p&AMORPH)==AMORPH)
  52  {
  53   *r=0xff;
  54   *g=0x00;
  55   *b=0x00;
  56  } else
  57  {
  58   *r=0x00;
  59   *g=0x00;
  60   *b=0xff;
  61  }
  62  return 23;
  63 }
  64 #endif
  65
  66 int display_draw(display *display,int x,int y,int z)
  67 {
  68 #ifdef USE_DFB_API
  69  int menu_x,menu_y,menu_w,menu_h; /* for the yellow box */
  70  int x_c,y_c,z_c;
  71  unsigned char r,g,b,a;
  72  int display_faktor_x,display_faktor_y;
  73  a=0xff; /* no alpha blending */
  74  if(((display->max_x+display->max_y+DISPLAY_X_FREE)>=display->screen_width)|
  75     ((display->max_y+display->max_z+DISPLAY_Y_FREE)>=display->screen_height))
  76  {
  77   puts("resolution too low!");
  78   return -23;
  79  }
  80  display_faktor_x=display->screen_width/(display->max_x+display->max_y+DISPLAY_X_FREE);
  81  display_faktor_y=display->screen_height/(display->max_z+display->max_y+DISPLAY_Y_FREE);
  82  // if(display_faktor_x<display_faktor_y) display_faktor_y=display_faktor_x;
  83  // if(display_faktor_y<display_faktor_x) display_faktor_x=display_faktor_y;
  84
  85  /* draw x-z surface */
  86  y_c=y;
  87  for(x_c=0;x_c<display->max_x;x_c++)
  88  {
  89   for(z_c=0;z_c<display->max_z;z_c++)
  90   {
  91    dfb_choose_color((u32 *)(display->cell_p+x_c+y_c*(display->max_x-1)+z_c*(display->max_x-1)*(display->max_y-1)),&r,&g,&b);
  92    if(x_c==x && z_c==z)
  93     display->primary_surface->SetColor(display->primary_surface,0xff,0xff,0,0);
  94    else
  95     display->primary_surface->SetColor(display->primary_surface,r,g,b,a);
  96    display->primary_surface->DrawRectangle(display->primary_surface,x_c*display_faktor_x+DISPLAY_X_FREE/3,z_c*display_faktor_y+DISPLAY_Y_FREE/3,display_faktor_x,display_faktor_y);
  97   }
  98  }
  99  /* draw y-z surface */
 100  x_c=x;
 101  for(y_c=0;y_c<display->max_y;y_c++)
 102  {
 103   for(z_c=0;z_c<display->max_z;z_c++)
 104   {
 105    dfb_choose_color((u32 *)(display->cell_p+x_c+y_c*(display->max_x-1)+z_c*(display->max_x-1)*(display->max_y-1)),&r,&g,&b);
 106    if(y_c==y && z_c==z)
 107     display->primary_surface->SetColor(display->primary_surface,0xff,0xff,0,0);
 108    else
 109     display->primary_surface->SetColor(display->primary_surface,r,g,b,a);
 110    display->primary_surface->DrawRectangle(display->primary_surface,(y_c+display->max_x)*display_faktor_x+2*DISPLAY_X_FREE/3,z_c*display_faktor_y+DISPLAY_Y_FREE/3,display_faktor_x,display_faktor_y);
 111   }
 112  }
 113  /* draw x-y surface */
 114  z_c=z;
 115  for(x_c=0;x_c<display->max_x;x_c++)
 116  {
 117   for(y_c=0;y_c<display->max_y;y_c++)
 118   {
 119    dfb_choose_color((u32 *)(display->cell_p+x_c+y_c*(display->max_x-1)+z_c*(display->max_x-1)*(display->max_y-1)),&r,&g,&b);
 120    if(x_c==x && y_c==y)
 121     display->primary_surface->SetColor(display->primary_surface,0xff,0xff,0,0);
 122    else
 123     display->primary_surface->SetColor(display->primary_surface,r,g,b,a);
 124    display->primary_surface->DrawRectangle(display->primary_surface,x_c*display_faktor_x+DISPLAY_X_FREE/3,(y_c+display->max_z)*display_faktor_y+2*DISPLAY_Y_FREE/3,display_faktor_x,display_faktor_y);
 125   }
 126  }
 127  /* display info window */
 128  r=0xff;
 129  g=0xff;
 130  b=0x00;
 131  a=0xff;
 132  menu_x=2*DISPLAY_X_FREE/3+display->max_x*display_faktor_x;
 133  menu_y=2*DISPLAY_Y_FREE/3+display->max_z*display_faktor_y;
 134  menu_w=display->max_y*display_faktor_x;
 135  menu_h=display->max_y*display_faktor_y;
 136  display->primary_surface->SetColor(display->primary_surface,0,0,0,0);
 137  display->primary_surface->FillRectangle(display->primary_surface,menu_x,menu_y,menu_w,menu_h);
 138  display->primary_surface->SetColor(display->primary_surface,r,g,b,a);
 139  display->primary_surface->DrawRectangle(display->primary_surface,menu_x,menu_y,menu_w,menu_h);
 140  /* flip all to surface */
 141  display->primary_surface->Flip(display->primary_surface,NULL,0);
 142 #endif
 143  return 23;
 144 }