dfbapi.c

   1 /*
   2  * scientific visualization api for direct framebuffer
   3  *
   4  * author: hackbard@hackdaworld.dyndns.org
   5  *
   6  */
   7
   8 #include <stdio.h>
   9 #include "dfbapi.h"
  10
  11 /* two dimensional lattice */
  12
  13 int d2_lattice_init(int *argc,char **argv,d2_lattice *d2_l,int x,int y)
  14 {
  15  DFBSurfaceDescription surface_dsc;
  16  DFBFontDescription font_dsc;
  17
  18  d2_l->max_x=x;
  19  d2_l->max_y=y;
  20
  21  DirectFBInit(argc,&argv);
  22  DirectFBCreate(&(d2_l->dfb));
  23  d2_l->dfb->SetCooperativeLevel(d2_l->dfb,DFSCL_FULLSCREEN);
  24
  25  surface_dsc.flags=DSDESC_CAPS;
  26  surface_dsc.caps=DSCAPS_PRIMARY|DSCAPS_FLIPPING;
  27  d2_l->dfb->CreateSurface(d2_l->dfb,&surface_dsc,&(d2_l->p_surface));
  28  d2_l->p_surface->GetSize(d2_l->p_surface,&(d2_l->s_width),&(d2_l->s_height));
  29
  30  font_dsc.flags=DFDESC_HEIGHT;
  31  font_dsc.height=d2_l->s_height/40; /* 40 ? */
  32  d2_l->font_h=font_dsc.height;
  33  d2_l->dfb->CreateFont(d2_l->dfb,FONT,&font_dsc,&(d2_l->font));
  34  d2_l->p_surface->SetFont(d2_l->p_surface,d2_l->font);
  35
  36  d2_l->fakt_y=(d2_l->s_height-(2*Y_GAP))/(d2_l->max_y);
  37  d2_l->fakt_x=(d2_l->s_height-X_GAP)/(d2_l->max_x); /* bullshit, i can't imagine atm */
  38  d2_l->info_x=d2_l->fakt_x*d2_l->max_x+2*X_GAP;
  39  d2_l->info_y=Y_GAP;
  40  d2_l->info_w=d2_l->s_width-d2_l->info_x-2*X_GAP;
  41  d2_l->info_h=d2_l->max_y*d2_l->fakt_y;
  42
  43  if((d2_l->s_height<(d2_l->max_y+2*Y_GAP)) || (d2_l->s_height<(d2_l->max_x+X_GAP)))
  44  {
  45   puts("resolution too low!");
  46   return -1;
  47  } else return 1;
  48 }
  49
  50 int d3_lattice_init(int *argc,char **argv,d3_lattice *d3_l,int x,int y,int z)
  51 {
  52  DFBSurfaceDescription surface_dsc;
  53  DFBFontDescription font_dsc;
  54
  55  d3_l->max_x=x;
  56  d3_l->max_y=y;
  57  d3_l->max_z=z;
  58
  59  DirectFBInit(argc,&argv);
  60  DirectFBCreate(&(d3_l->dfb));
  61  d3_l->dfb->SetCooperativeLevel(d3_l->dfb,DFSCL_FULLSCREEN);
  62
  63  surface_dsc.flags=DSDESC_CAPS;
  64  surface_dsc.caps=DSCAPS_PRIMARY|DSCAPS_FLIPPING;
  65  d3_l->dfb->CreateSurface(d3_l->dfb,&surface_dsc,&(d3_l->p_surface));
  66  d3_l->p_surface->GetSize(d3_l->p_surface,&(d3_l->s_width),&(d3_l->s_height));
  67
  68  font_dsc.flags=DFDESC_HEIGHT;
  69  font_dsc.height=d3_l->s_height/40; /* 40 ? */
  70  d3_l->font_h=font_dsc.height;
  71  d3_l->dfb->CreateFont(d3_l->dfb,FONT,&font_dsc,&(d3_l->font));
  72  d3_l->p_surface->SetFont(d3_l->p_surface,d3_l->font);
  73
  74  d3_l->fakt_y=(d3_l->s_height-(3*Y_GAP))/(d3_l->max_z+d3_l->max_y);
  75  d3_l->fakt_x=(d3_l->s_width-(3*X_GAP))/(d3_l->max_x+d3_l->max_y);
  76  d3_l->info_x=d3_l->fakt_x*d3_l->max_x+(2*X_GAP);
  77  d3_l->info_y=d3_l->fakt_y*d3_l->max_z+(2*Y_GAP);
  78  d3_l->info_w=d3_l->fakt_x*d3_l->max_y;
  79  d3_l->info_h=d3_l->fakt_y*d3_l->max_y;
  80
  81  return 1;
  82 }
  83
  84 int d2_lattice_release(d2_lattice *d2_l)
  85 {
  86  d2_l->font->Release(d2_l->font);
  87  d2_l->p_surface->Release(d2_l->p_surface);
  88  d2_l->dfb->Release(d2_l->dfb);
  89
  90  return 1;
  91 }
  92
  93 int d3_lattice_release(d3_lattice *d3_l)
  94 {
  95  d3_l->font->Release(d3_l->font);
  96  d3_l->p_surface->Release(d3_l->p_surface);
  97  d3_l->dfb->Release(d3_l->dfb);
  98
  99  return 1;
 100 }
 101
 102 int dx_lattice_get_color(unsigned char *status,unsigned char *r,unsigned char *g,unsigned char *b)
 103 {
 104  if((*status)&RED)
 105  {
 106   *r=0xff;
 107   *g=0;
 108   *b=0;
 109  } else
 110  {
 111   *r=0;
 112   *g=0;
 113   *b=0xff;
 114  }
 115
 116  return 1;
 117 }
 118
 119 int d2_lattice_draw(d2_lattice *d2_l,int x,int y,int arg_c,char **arg_v)
 120 {
 121  int x_c,y_c;
 122  int i;
 123  unsigned char r,g,b,a;
 124
 125  a=0xff; /* no alpha blending */
 126
 127  for(x_c=0;x_c<d2_l->max_x;x_c++)
 128  {
 129   for(y_c=0;y_c<d2_l->max_y;y_c++)
 130   {
 131    dx_lattice_get_color((*d2_l).status+x_c+y_c*d2_l->max_x,&r,&g,&b);
 132    if(x_c==x && y_c==y)
 133    {
 134     r=0xff;
 135     g=0xff;
 136     b=0;
 137    }
 138    d2_l->p_surface->SetColor(d2_l->p_surface,r,g,b,a);
 139    d2_l->p_surface->DrawRectangle(d2_l->p_surface,
 140                                   x_c*d2_l->fakt_x+X_GAP,
 141                                   y_c*d2_l->fakt_y+Y_GAP,
 142                                   d2_l->fakt_x,d2_l->fakt_y);
 143   }
 144  }
 145  r=0xff;
 146  g=0xff;
 147  b=0;
 148  /* clear info box */
 149  d2_l->p_surface->SetColor(d2_l->p_surface,0,0,0,0);
 150  d2_l->p_surface->FillRectangle(d2_l->p_surface,
 151                                 d2_l->info_x,d2_l->info_y,
 152                                 d2_l->info_w,d2_l->info_h);
 153  d2_l->p_surface->SetColor(d2_l->p_surface,r,g,b,a);
 154  d2_l->p_surface->DrawRectangle(d2_l->p_surface,
 155                                 d2_l->info_x,d2_l->info_y,
 156                                 d2_l->info_w,d2_l->info_h);
 157  d2_l->p_surface->SetColor(d2_l->p_surface,0x80,0x80,0xff,0xff);
 158  for(i=1;i<=arg_c;i++)
 159  {
 160   d2_l->p_surface->DrawString(d2_l->p_surface,arg_v[i],-1,
 161                               d2_l->info_x+d2_l->fakt_x,
 162                               d2_l->info_y+d2_l->fakt_y+d2_l->font_h+(i-1)*2*d2_l->font_h,
 163                               DSTF_LEFT);
 164  }
 165  /* now we flip all to surface */
 166  d2_l->p_surface->Flip(d2_l->p_surface,NULL,0);
 167
 168  return 1;
 169 }
 170
 171 int d3_lattice_draw(d3_lattice *d3_l,int x,int y,int z,int arg_c,char **arg_v)
 172 {
 173  int x_c,y_c,z_c;
 174  int i;
 175  unsigned char r,g,b,a;
 176
 177  a=0xff; /* no alpha blending */
 178
 179  y_c=y;
 180  for(x_c=0;x_c<d3_l->max_x;x_c++)
 181  {
 182   for(z_c=0;z_c<d3_l->max_z;z_c++)
 183   {
 184    dx_lattice_get_color((*d3_l).status+x_c+y_c*d3_l->max_x+z_c*d3_l->max_x*d3_l->max_y,&r,&g,&b);
 185    if(x_c==x && z_c==z)
 186    {
 187     r=0xff;
 188     g=0xff;
 189     b=0;
 190    }
 191    d3_l->p_surface->SetColor(d3_l->p_surface,r,g,b,a);
 192    d3_l->p_surface->DrawRectangle(d3_l->p_surface,
 193                                   x_c*d3_l->fakt_x+X_GAP,
 194                                   z_c*d3_l->fakt_y+Y_GAP,
 195                                   d3_l->fakt_x,d3_l->fakt_y);
 196   }
 197  }
 198
 199  x_c=x;
 200  for(y_c=0;y_c<d3_l->max_y;y_c++)
 201  {
 202   for(z_c=0;z_c<d3_l->max_z;z_c++)
 203   {
 204    dx_lattice_get_color((*d3_l).status+x_c+y_c*d3_l->max_x+z_c*d3_l->max_x*d3_l->max_y,&r,&g,&b);
 205    if(y_c==y && z_c==z)
 206    {
 207     r=0xff;
 208     g=0xff;
 209     b=0;
 210    }
 211    d3_l->p_surface->SetColor(d3_l->p_surface,r,g,b,a);
 212    d3_l->p_surface->DrawRectangle(d3_l->p_surface,
 213                                   y_c*d3_l->fakt_x+d3_l->info_x,
 214                                   z_c*d3_l->fakt_y+Y_GAP,
 215                                   d3_l->fakt_x,d3_l->fakt_y);
 216   }
 217  }
 218
 219  z_c=z;
 220  for(x_c=0;x_c<d3_l->max_x;x_c++)
 221  {
 222   for(y_c=0;y_c<d3_l->max_y;y_c++)
 223   {
 224    dx_lattice_get_color((*d3_l).status+x_c+y_c*d3_l->max_x+z_c*d3_l->max_x*d3_l->max_y,&r,&g,&b);
 225    if(x_c==x && y_c==y)
 226    {
 227     r=0xff;
 228     g=0xff;
 229     b=0;
 230    }
 231    d3_l->p_surface->SetColor(d3_l->p_surface,r,g,b,a);
 232    d3_l->p_surface->DrawRectangle(d3_l->p_surface,
 233                                   x_c*d3_l->fakt_x+X_GAP,
 234                                   y_c*d3_l->fakt_x+d3_l->info_x,
 235                                   d3_l->fakt_x,d3_l->fakt_y);
 236   }
 237  }
 238
 239  r=0xff;
 240  g=0xff;
 241  b=0;
 242  /* clear info box */
 243  d3_l->p_surface->SetColor(d3_l->p_surface,0,0,0,0);
 244  d3_l->p_surface->FillRectangle(d3_l->p_surface,
 245                                 d3_l->info_x,d3_l->info_y,
 246                                 d3_l->info_w,d3_l->info_h);
 247  d3_l->p_surface->SetColor(d3_l->p_surface,r,g,b,a);
 248  d3_l->p_surface->DrawRectangle(d3_l->p_surface,
 249                                 d3_l->info_x,d3_l->info_y,
 250                                 d3_l->info_w,d3_l->info_h);
 251  d3_l->p_surface->DrawLine(d3_l->p_surface,
 252                            d3_l->info_x+d3_l->info_w/2,
 253                            d3_l->info_y,
 254                            d3_l->info_x+d3_l->info_w/2,
 255                            d3_l->info_y+d3_l->info_h);
 256  d3_l->p_surface->SetColor(d3_l->p_surface,0x80,0x80,0xff,0xff);
 257  for(i=1;i<=arg_c;i++)
 258  {
 259   if(i<8)
 260   {
 261    d3_l->p_surface->DrawString(d3_l->p_surface,arg_v[i],-1,
 262                                d3_l->info_x+d3_l->fakt_x,
 263                                d3_l->info_y+d3_l->fakt_y+d3_l->font_h+(i-1)*2*d3_l->font_h,
 264                                DSTF_LEFT);
 265   } else
 266   {
 267    d3_l->p_surface->DrawString(d3_l->p_surface,arg_v[i],-1,
 268                                d3_l->info_x+d3_l->info_w/2+d3_l->fakt_x,
 269                                d3_l->info_y+d3_l->fakt_y+d3_l->font_h+(i%8-1)*2*d3_l->font_h,
 270                                DSTF_LEFT);
 271   }
 272  }
 273
 274  return 1;
 275 }