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