git.sur5r.net Git - u-boot/blob - tools/easylogo/easylogo.c

   1 /*
   2 ** Easylogo TGA->header converter
   3 ** ==============================
   4 ** (C) 2000 by Paolo Scaffardi (arsenio@tin.it)
   5 ** AIRVENT SAM s.p.a - RIMINI(ITALY)
   6 **
   7 ** This is still under construction!
   8 */
   9
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13
  14 #pragma pack(1)
  15
  16 /*#define ENABLE_ASCII_BANNERS */
  17
  18 typedef struct {
  19         unsigned char   id;
  20         unsigned char   ColorMapType;
  21         unsigned char   ImageTypeCode;
  22         unsigned short  ColorMapOrigin;
  23         unsigned short  ColorMapLenght;
  24         unsigned char   ColorMapEntrySize;
  25         unsigned short  ImageXOrigin;
  26         unsigned short  ImageYOrigin;
  27         unsigned short  ImageWidth;
  28         unsigned short  ImageHeight;
  29         unsigned char   ImagePixelSize;
  30         unsigned char   ImageDescriptorByte;
  31 } tga_header_t;
  32
  33 typedef struct {
  34         unsigned char r,g,b ;
  35 } rgb_t ;
  36
  37 typedef struct {
  38         unsigned char b,g,r ;
  39 } bgr_t ;
  40
  41 typedef struct {
  42         unsigned char   Cb,y1,Cr,y2;
  43 } yuyv_t ;
  44
  45 typedef struct {
  46         void                            *data,
  47                                         *palette ;
  48         int                             width,
  49                                         height,
  50                                         pixels,
  51                                         bpp,
  52                                         pixel_size,
  53                                         size,
  54                                         palette_size,
  55                                         yuyv;
  56 } image_t ;
  57
  58 void StringUpperCase (char *str)
  59 {
  60     int count = strlen(str);
  61     char c ;
  62
  63     while(count--)
  64     {
  65         c=*str;
  66         if ((c >= 'a')&&(c<='z'))
  67             *str = 'A' + (c-'a');
  68         str++ ;
  69     }
  70 }
  71
  72 void StringLowerCase (char *str)
  73 {
  74     int count = strlen(str);
  75     char c ;
  76
  77     while(count--)
  78     {
  79         c=*str;
  80         if ((c >= 'A')&&(c<='Z'))
  81             *str = 'a' + (c-'A');
  82         str++ ;
  83     }
  84 }
  85 void pixel_rgb_to_yuyv (rgb_t *rgb_pixel, yuyv_t *yuyv_pixel)
  86 {
  87     unsigned int pR, pG, pB ;
  88
  89     /* Transform (0-255) components to (0-100) */
  90     pR = rgb_pixel->r * 100 / 255 ;
  91     pG = rgb_pixel->g * 100 / 255 ;
  92     pB = rgb_pixel->b * 100 / 255 ;
  93
  94     /* Calculate YUV values (0-255) from RGB beetween 0-100 */
  95     yuyv_pixel->y1 = yuyv_pixel->y2     = 209 * (pR + pG + pB) / 300 + 16  ;
  96     yuyv_pixel->Cb                      = pB - (pR/4)   - (pG*3/4)   + 128 ;
  97     yuyv_pixel->Cr                      = pR - (pG*3/4) - (pB/4)     + 128 ;
  98
  99     return ;
 100 }
 101
 102 void printlogo_rgb (rgb_t       *data, int w, int h)
 103 {
 104     int x,y;
 105     for (y=0; y<h; y++)
 106     {
 107         for (x=0; x<w; x++, data++)
 108             if ((data->r < 30)/*&&(data->g == 0)&&(data->b == 0)*/)
 109                 printf(" ");
 110             else
 111                 printf("X");
 112         printf("\n");
 113     }
 114 }
 115
 116 void printlogo_yuyv (unsigned short *data, int w, int h)
 117 {
 118     int x,y;
 119     for (y=0; y<h; y++)
 120     {
 121         for (x=0; x<w; x++, data++)
 122             if (*data == 0x1080)    /* Because of inverted on i386! */
 123                 printf(" ");
 124             else
 125                 printf("X");
 126         printf("\n");
 127     }
 128 }
 129
 130 int image_load_tga (image_t *image, char *filename)
 131 {
 132     FILE *file ;
 133     tga_header_t header ;
 134     int i;
 135     unsigned char app ;
 136     rgb_t *p ;
 137
 138     if( ( file = fopen( filename, "rb" ) ) == NULL )
 139         return -1;
 140
 141     fread(&header, sizeof(header), 1, file);
 142
 143     image->width        = header.ImageWidth ;
 144     image->height       = header.ImageHeight ;
 145
 146     switch (header.ImageTypeCode){
 147         case 2: /* Uncompressed RGB */
 148                         image->yuyv = 0 ;
 149                         image->palette_size = 0 ;
 150                         image->palette = NULL ;
 151             break;
 152
 153         default:
 154             printf("Format not supported!\n");
 155             return -1 ;
 156     }
 157
 158     image->bpp                  = header.ImagePixelSize ;
 159     image->pixel_size           = ((image->bpp-1) / 8) + 1 ;
 160     image->pixels               = image->width * image->height;
 161     image->size                 = image->pixels * image->pixel_size ;
 162     image->data                 = malloc(image->size) ;
 163
 164     if (image->bpp != 24)
 165     {
 166         printf("Bpp not supported: %d!\n", image->bpp);
 167         return -1 ;
 168     }
 169
 170     fread(image->data, image->size, 1, file);
 171
 172 /* Swapping R and B values */
 173
 174     p = image->data ;
 175     for(i=0; i < image->pixels; i++, p++)
 176     {
 177         app = p->r ;
 178         p->r = p->b ;
 179         p->b = app ;
 180     }
 181
 182 /* Swapping image */
 183
 184     if(!(header.ImageDescriptorByte & 0x20))
 185     {
 186         unsigned char *temp = malloc(image->size);
 187         int linesize = image->pixel_size * image->width ;
 188         void    *dest = image->data,
 189                 *source = temp + image->size - linesize ;
 190
 191         printf("S");
 192         if (temp == NULL)
 193         {
 194             printf("Cannot alloc temp buffer!\n");
 195             return -1;
 196         }
 197
 198         memcpy(temp, image->data, image->size);
 199         for(i = 0; i<image->height; i++, dest+=linesize, source-=linesize)
 200             memcpy(dest, source, linesize);
 201
 202         free( temp );
 203     }
 204
 205 #ifdef ENABLE_ASCII_BANNERS
 206     printlogo_rgb (image->data,image->width, image->height);
 207 #endif
 208
 209     fclose (file);
 210     return 0;
 211 }
 212
 213 int image_free (image_t *image)
 214 {
 215     if(image->data != NULL)
 216                 free(image->data);
 217
 218     if(image->palette != NULL)
 219                 free(image->palette);
 220
 221         return 0;
 222 }
 223
 224 int image_rgb_to_yuyv (image_t *rgb_image, image_t *yuyv_image)
 225 {
 226         rgb_t   *rgb_ptr = (rgb_t *) rgb_image->data ;
 227         yuyv_t  yuyv ;
 228         unsigned short *dest ;
 229         int     count = 0 ;
 230
 231         yuyv_image->pixel_size          = 2 ;
 232         yuyv_image->bpp                 = 16 ;
 233         yuyv_image->yuyv                = 1 ;
 234         yuyv_image->width               = rgb_image->width ;
 235         yuyv_image->height              = rgb_image->height ;
 236         yuyv_image->pixels              = yuyv_image->width * yuyv_image->height ;
 237         yuyv_image->size                = yuyv_image->pixels * yuyv_image->pixel_size ;
 238         dest = (unsigned short *) (yuyv_image->data     = malloc(yuyv_image->size)) ;
 239         yuyv_image->palette             = 0 ;
 240         yuyv_image->palette_size= 0 ;
 241
 242         while((count++) < rgb_image->pixels)
 243         {
 244                 pixel_rgb_to_yuyv (rgb_ptr++, &yuyv);
 245
 246                 if ((count & 1)==0)     /* Was == 0 */
 247                     memcpy (dest, ((void *)&yuyv) + 2, sizeof(short));
 248                 else
 249                     memcpy (dest, (void *)&yuyv, sizeof(short));
 250
 251                 dest ++ ;
 252         }
 253
 254 #ifdef ENABLE_ASCII_BANNERS
 255         printlogo_yuyv (yuyv_image->data, yuyv_image->width, yuyv_image->height);
 256 #endif
 257         return 0 ;
 258 }
 259
 260 int image_save_header (image_t *image, char *filename, char *varname)
 261 {
 262         FILE    *file = fopen (filename, "w");
 263         char    app[256], str[256]="", def_name[64] ;
 264         int     count = image->size, col=0;
 265         unsigned char *dataptr = image->data ;
 266         if (file==NULL)
 267                 return -1 ;
 268
 269 /*  Author information */
 270         fprintf(file, "/*\n * Generated by EasyLogo, (C) 2000 by Paolo Scaffardi\n *\n");
 271         fprintf(file, " * To use this, include it and call: easylogo_plot(screen,&%s, width,x,y)\n *\n", varname);
 272         fprintf(file, " * Where:\t'screen'\tis the pointer to the frame buffer\n");
 273         fprintf(file, " *\t\t'width'\tis the screen width\n");
 274         fprintf(file, " *\t\t'x'\t\tis the horizontal position\n");
 275         fprintf(file, " *\t\t'y'\t\tis the vertical position\n */\n\n");
 276
 277 /*      Headers */
 278         fprintf(file, "#include <video_easylogo.h>\n\n");
 279 /*      Macros */
 280         strcpy(def_name, varname);
 281         StringUpperCase (def_name);
 282         fprintf(file, "#define  DEF_%s_WIDTH\t\t%d\n", def_name, image->width);
 283         fprintf(file, "#define  DEF_%s_HEIGHT\t\t%d\n", def_name, image->height);
 284         fprintf(file, "#define  DEF_%s_PIXELS\t\t%d\n", def_name, image->pixels);
 285         fprintf(file, "#define  DEF_%s_BPP\t\t%d\n", def_name, image->bpp);
 286         fprintf(file, "#define  DEF_%s_PIXEL_SIZE\t%d\n", def_name, image->pixel_size);
 287         fprintf(file, "#define  DEF_%s_SIZE\t\t%d\n\n", def_name, image->size);
 288 /*  Declaration */
 289         fprintf(file, "unsigned char DEF_%s_DATA[DEF_%s_SIZE] = {\n", def_name, def_name);
 290
 291 /*      Data */
 292         while(count)
 293                 switch (col){
 294                         case 0:
 295                                 sprintf(str, " 0x%02x", *dataptr++);
 296                                 col++;
 297                                 count-- ;
 298                                 break;
 299
 300                         case 16:
 301                                 fprintf(file, "%s", str);
 302                                 if (count > 0)
 303                                     fprintf(file,",");
 304                                 fprintf(file, "\n");
 305
 306                                 col = 0 ;
 307                                 break;
 308
 309                         default:
 310                                 strcpy(app, str);
 311                                 sprintf(str, "%s, 0x%02x", app, *dataptr++);
 312                                 col++ ;
 313                                 count-- ;
 314                                 break;
 315                 }
 316
 317         if (col)
 318                 fprintf(file, "%s\n", str);
 319
 320 /*      End of declaration */
 321         fprintf(file, "};\n\n");
 322 /*      Variable */
 323         fprintf(file, "fastimage_t %s = {\n", varname);
 324         fprintf(file, "         DEF_%s_DATA,\n", def_name);
 325         fprintf(file, "         DEF_%s_WIDTH,\n", def_name);
 326         fprintf(file, "         DEF_%s_HEIGHT,\n", def_name);
 327         fprintf(file, "         DEF_%s_BPP,\n", def_name);
 328         fprintf(file, "         DEF_%s_PIXEL_SIZE,\n", def_name);
 329         fprintf(file, "         DEF_%s_SIZE\n};\n", def_name);
 330
 331         fclose (file);
 332
 333         return 0 ;
 334 }
 335
 336 #define DEF_FILELEN     256
 337
 338 int main (int argc, char *argv[])
 339 {
 340     char
 341         inputfile[DEF_FILELEN],
 342         outputfile[DEF_FILELEN],
 343         varname[DEF_FILELEN];
 344
 345     image_t             rgb_logo, yuyv_logo ;
 346
 347     switch (argc){
 348     case 2:
 349     case 3:
 350     case 4:
 351         strcpy (inputfile,      argv[1]);
 352
 353         if (argc > 2)
 354             strcpy (varname,    argv[2]);
 355         else
 356         {
 357             char *dot = strchr(inputfile, '.');
 358             int pos = dot - inputfile;
 359
 360             if (dot)
 361             {
 362                 strncpy (varname, inputfile, pos);
 363                 varname[pos] = 0 ;
 364             }
 365         }
 366
 367         if (argc > 3)
 368             strcpy (outputfile, argv[3]);
 369         else
 370         {
 371             char *dot = strchr (varname, '.');
 372             int pos = dot - varname;
 373
 374             if (dot)
 375             {
 376                 char app[DEF_FILELEN] ;
 377
 378                 strncpy(app, varname, pos);
 379                 app[pos] = 0;
 380                 sprintf(outputfile, "%s.h", app);
 381             }
 382         }
 383         break;
 384
 385     default:
 386         printf("EasyLogo 1.0 (C) 2000 by Paolo Scaffardi\n\n");
 387
 388         printf("Syntax: easylogo inputfile [outputvar {outputfile}] \n");
 389         printf("\n");
 390         printf("Where:  'inputfile'     is the TGA image to load\n");
 391         printf("        'outputvar'     is the variable name to create\n");
 392         printf("        'outputfile'    is the output header file (default is 'inputfile.h')\n");
 393
 394         return -1 ;
 395     }
 396
 397     printf("Doing '%s' (%s) from '%s'...",
 398         outputfile, varname, inputfile);
 399
 400 /* Import TGA logo */
 401
 402     printf("L");
 403     if (image_load_tga (&rgb_logo, inputfile)<0)
 404     {
 405         printf("input file not found!\n");
 406         exit(1);
 407     }
 408
 409 /* Convert it to YUYV format */
 410
 411     printf("C");
 412     image_rgb_to_yuyv (&rgb_logo, &yuyv_logo) ;
 413
 414 /* Save it into a header format */
 415
 416     printf("S");
 417     image_save_header (&yuyv_logo, outputfile, varname) ;
 418
 419 /* Free original image and copy */
 420
 421     image_free (&rgb_logo);
 422     image_free (&yuyv_logo);
 423
 424     printf("\n");
 425
 426     return 0 ;
 427 }