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, *palette;
  47         int width, height, pixels, bpp, pixel_size, size, palette_size, yuyv;
  48 } image_t;
  49
  50 void StringUpperCase (char *str)
  51 {
  52         int count = strlen (str);
  53         char c;
  54
  55         while (count--) {
  56                 c = *str;
  57                 if ((c >= 'a') && (c <= 'z'))
  58                         *str = 'A' + (c - 'a');
  59                 str++;
  60         }
  61 }
  62
  63 void StringLowerCase (char *str)
  64 {
  65         int count = strlen (str);
  66         char c;
  67
  68         while (count--) {
  69                 c = *str;
  70                 if ((c >= 'A') && (c <= 'Z'))
  71                         *str = 'a' + (c - 'A');
  72                 str++;
  73         }
  74 }
  75 void pixel_rgb_to_yuyv (rgb_t * rgb_pixel, yuyv_t * yuyv_pixel)
  76 {
  77         unsigned int pR, pG, pB;
  78
  79         /* Transform (0-255) components to (0-100) */
  80         pR = rgb_pixel->r * 100 / 255;
  81         pG = rgb_pixel->g * 100 / 255;
  82         pB = rgb_pixel->b * 100 / 255;
  83
  84         /* Calculate YUV values (0-255) from RGB beetween 0-100 */
  85         yuyv_pixel->y1 = yuyv_pixel->y2 = 209 * (pR + pG + pB) / 300 + 16;
  86         yuyv_pixel->Cb = pB - (pR / 4) - (pG * 3 / 4) + 128;
  87         yuyv_pixel->Cr = pR - (pG * 3 / 4) - (pB / 4) + 128;
  88
  89         return;
  90 }
  91
  92 void printlogo_rgb (rgb_t * data, int w, int h)
  93 {
  94         int x, y;
  95
  96         for (y = 0; y < h; y++) {
  97                 for (x = 0; x < w; x++, data++)
  98                         if ((data->r <
  99                              30) /*&&(data->g == 0)&&(data->b == 0) */ )
 100                                 printf (" ");
 101                         else
 102                                 printf ("X");
 103                 printf ("\n");
 104         }
 105 }
 106
 107 void printlogo_yuyv (unsigned short *data, int w, int h)
 108 {
 109         int x, y;
 110
 111         for (y = 0; y < h; y++) {
 112                 for (x = 0; x < w; x++, data++)
 113                         if (*data == 0x1080)    /* Because of inverted on i386! */
 114                                 printf (" ");
 115                         else
 116                                 printf ("X");
 117                 printf ("\n");
 118         }
 119 }
 120
 121 static inline unsigned short le16_to_cpu (unsigned short val)
 122 {
 123         union {
 124                 unsigned char pval[2];
 125                 unsigned short val;
 126         } swapped;
 127
 128         swapped.val = val;
 129         return (swapped.pval[1] << 8) + swapped.pval[0];
 130 }
 131
 132 int image_load_tga (image_t * image, char *filename)
 133 {
 134         FILE *file;
 135         tga_header_t header;
 136         int i;
 137         unsigned char app;
 138         rgb_t *p;
 139
 140         if ((file = fopen (filename, "rb")) == NULL)
 141                 return -1;
 142
 143         fread (&header, sizeof (header), 1, file);
 144
 145         /* byte swap: tga is little endian, host is ??? */
 146         header.ColorMapOrigin = le16_to_cpu (header.ColorMapOrigin);
 147         header.ColorMapLenght = le16_to_cpu (header.ColorMapLenght);
 148         header.ImageXOrigin = le16_to_cpu (header.ImageXOrigin);
 149         header.ImageYOrigin = le16_to_cpu (header.ImageYOrigin);
 150         header.ImageWidth = le16_to_cpu (header.ImageWidth);
 151         header.ImageHeight = le16_to_cpu (header.ImageHeight);
 152
 153         image->width = header.ImageWidth;
 154         image->height = header.ImageHeight;
 155
 156         switch (header.ImageTypeCode) {
 157         case 2:         /* Uncompressed RGB */
 158                 image->yuyv = 0;
 159                 image->palette_size = 0;
 160                 image->palette = NULL;
 161                 break;
 162
 163         default:
 164                 printf ("Format not supported!\n");
 165                 return -1;
 166         }
 167
 168         image->bpp = header.ImagePixelSize;
 169         image->pixel_size = ((image->bpp - 1) / 8) + 1;
 170         image->pixels = image->width * image->height;
 171         image->size = image->pixels * image->pixel_size;
 172         image->data = malloc (image->size);
 173
 174         if (image->bpp != 24) {
 175                 printf ("Bpp not supported: %d!\n", image->bpp);
 176                 return -1;
 177         }
 178
 179         fread (image->data, image->size, 1, file);
 180
 181 /* Swapping R and B values */
 182
 183         p = image->data;
 184         for (i = 0; i < image->pixels; i++, p++) {
 185                 app = p->r;
 186                 p->r = p->b;
 187                 p->b = app;
 188         }
 189
 190 /* Swapping image */
 191
 192         if (!(header.ImageDescriptorByte & 0x20)) {
 193                 unsigned char *temp = malloc (image->size);
 194                 int linesize = image->pixel_size * image->width;
 195                 void *dest = image->data,
 196                         *source = temp + image->size - linesize;
 197
 198                 printf ("S");
 199                 if (temp == NULL) {
 200                         printf ("Cannot alloc temp buffer!\n");
 201                         return -1;
 202                 }
 203
 204                 memcpy (temp, image->data, image->size);
 205                 for (i = 0; i < image->height;
 206                      i++, dest += linesize, source -= linesize)
 207                         memcpy (dest, source, linesize);
 208
 209                 free (temp);
 210         }
 211 #ifdef ENABLE_ASCII_BANNERS
 212         printlogo_rgb (image->data, image->width, image->height);
 213 #endif
 214
 215         fclose (file);
 216         return 0;
 217 }
 218
 219 int image_free (image_t * image)
 220 {
 221         if (image->data != NULL)
 222                 free (image->data);
 223
 224         if (image->palette != NULL)
 225                 free (image->palette);
 226
 227         return 0;
 228 }
 229
 230 int image_rgb_to_yuyv (image_t * rgb_image, image_t * yuyv_image)
 231 {
 232         rgb_t *rgb_ptr = (rgb_t *) rgb_image->data;
 233         yuyv_t yuyv;
 234         unsigned short *dest;
 235         int count = 0;
 236
 237         yuyv_image->pixel_size = 2;
 238         yuyv_image->bpp = 16;
 239         yuyv_image->yuyv = 1;
 240         yuyv_image->width = rgb_image->width;
 241         yuyv_image->height = rgb_image->height;
 242         yuyv_image->pixels = yuyv_image->width * yuyv_image->height;
 243         yuyv_image->size = yuyv_image->pixels * yuyv_image->pixel_size;
 244         dest = (unsigned short *) (yuyv_image->data =
 245                                    malloc (yuyv_image->size));
 246         yuyv_image->palette = 0;
 247         yuyv_image->palette_size = 0;
 248
 249         while ((count++) < rgb_image->pixels) {
 250                 pixel_rgb_to_yuyv (rgb_ptr++, &yuyv);
 251
 252                 if ((count & 1) == 0)   /* Was == 0 */
 253                         memcpy (dest, ((void *) &yuyv) + 2, sizeof (short));
 254                 else
 255                         memcpy (dest, (void *) &yuyv, sizeof (short));
 256
 257                 dest++;
 258         }
 259
 260 #ifdef ENABLE_ASCII_BANNERS
 261         printlogo_yuyv (yuyv_image->data, yuyv_image->width,
 262                         yuyv_image->height);
 263 #endif
 264         return 0;
 265 }
 266
 267 int image_save_header (image_t * image, char *filename, char *varname)
 268 {
 269         FILE *file = fopen (filename, "w");
 270         char app[256], str[256] = "", def_name[64];
 271         int count = image->size, col = 0;
 272         unsigned char *dataptr = image->data;
 273
 274         if (file == NULL)
 275                 return -1;
 276
 277         /*  Author information */
 278         fprintf (file,
 279                  "/*\n * Generated by EasyLogo, (C) 2000 by Paolo Scaffardi\n *\n");
 280         fprintf (file,
 281                  " * To use this, include it and call: easylogo_plot(screen,&%s, width,x,y)\n *\n",
 282                  varname);
 283         fprintf (file,
 284                  " * Where:\t'screen'\tis the pointer to the frame buffer\n");
 285         fprintf (file, " *\t\t'width'\tis the screen width\n");
 286         fprintf (file, " *\t\t'x'\t\tis the horizontal position\n");
 287         fprintf (file, " *\t\t'y'\t\tis the vertical position\n */\n\n");
 288
 289         /*      Headers */
 290         fprintf (file, "#include <video_easylogo.h>\n\n");
 291         /*      Macros */
 292         strcpy (def_name, varname);
 293         StringUpperCase (def_name);
 294         fprintf (file, "#define DEF_%s_WIDTH\t\t%d\n", def_name,
 295                  image->width);
 296         fprintf (file, "#define DEF_%s_HEIGHT\t\t%d\n", def_name,
 297                  image->height);
 298         fprintf (file, "#define DEF_%s_PIXELS\t\t%d\n", def_name,
 299                  image->pixels);
 300         fprintf (file, "#define DEF_%s_BPP\t\t%d\n", def_name, image->bpp);
 301         fprintf (file, "#define DEF_%s_PIXEL_SIZE\t%d\n", def_name,
 302                  image->pixel_size);
 303         fprintf (file, "#define DEF_%s_SIZE\t\t%d\n\n", def_name,
 304                  image->size);
 305         /*  Declaration */
 306         fprintf (file, "unsigned char DEF_%s_DATA[DEF_%s_SIZE] = {\n",
 307                  def_name, def_name);
 308
 309         /*      Data */
 310         while (count)
 311                 switch (col) {
 312                 case 0:
 313                         sprintf (str, " 0x%02x", *dataptr++);
 314                         col++;
 315                         count--;
 316                         break;
 317
 318                 case 16:
 319                         fprintf (file, "%s", str);
 320                         if (count > 0)
 321                                 fprintf (file, ",");
 322                         fprintf (file, "\n");
 323
 324                         col = 0;
 325                         break;
 326
 327                 default:
 328                         strcpy (app, str);
 329                         sprintf (str, "%s, 0x%02x", app, *dataptr++);
 330                         col++;
 331                         count--;
 332                         break;
 333                 }
 334
 335         if (col)
 336                 fprintf (file, "%s\n", str);
 337
 338         /*      End of declaration */
 339         fprintf (file, "};\n\n");
 340         /*      Variable */
 341         fprintf (file, "fastimage_t %s = {\n", varname);
 342         fprintf (file, "                DEF_%s_DATA,\n", def_name);
 343         fprintf (file, "                DEF_%s_WIDTH,\n", def_name);
 344         fprintf (file, "                DEF_%s_HEIGHT,\n", def_name);
 345         fprintf (file, "                DEF_%s_BPP,\n", def_name);
 346         fprintf (file, "                DEF_%s_PIXEL_SIZE,\n", def_name);
 347         fprintf (file, "                DEF_%s_SIZE\n};\n", def_name);
 348
 349         fclose (file);
 350
 351         return 0;
 352 }
 353
 354 #define DEF_FILELEN     256
 355
 356 int main (int argc, char *argv[])
 357 {
 358         char inputfile[DEF_FILELEN],
 359                 outputfile[DEF_FILELEN], varname[DEF_FILELEN];
 360
 361         image_t rgb_logo, yuyv_logo;
 362
 363         switch (argc) {
 364         case 2:
 365         case 3:
 366         case 4:
 367                 strcpy (inputfile, argv[1]);
 368
 369                 if (argc > 2)
 370                         strcpy (varname, argv[2]);
 371                 else {
 372                         char *dot = strchr (inputfile, '.');
 373                         int pos = dot - inputfile;
 374
 375                         if (dot) {
 376                                 strncpy (varname, inputfile, pos);
 377                                 varname[pos] = 0;
 378                         }
 379                 }
 380
 381                 if (argc > 3)
 382                         strcpy (outputfile, argv[3]);
 383                 else {
 384                         char *dot = strchr (varname, '.');
 385                         int pos = dot - varname;
 386
 387                         if (dot) {
 388                                 char app[DEF_FILELEN];
 389
 390                                 strncpy (app, varname, pos);
 391                                 app[pos] = 0;
 392                                 sprintf (outputfile, "%s.h", app);
 393                         }
 394                 }
 395                 break;
 396
 397         default:
 398                 printf ("EasyLogo 1.0 (C) 2000 by Paolo Scaffardi\n\n");
 399
 400                 printf("Syntax: easylogo inputfile [outputvar {outputfile}] \n");
 401                 printf("\n");
 402                 printf("Where:  'inputfile'     is the TGA image to load\n");
 403                 printf("        'outputvar'     is the variable name to create\n");
 404                 printf("        'outputfile'    is the output header file (default is 'inputfile.h')\n");
 405
 406                 return -1;
 407         }
 408
 409         printf ("Doing '%s' (%s) from '%s'...",
 410                 outputfile, varname, inputfile);
 411
 412         /* Import TGA logo */
 413
 414         printf ("L");
 415         if (image_load_tga (&rgb_logo, inputfile) < 0) {
 416                 printf ("input file not found!\n");
 417                 exit (1);
 418         }
 419
 420         /* Convert it to YUYV format */
 421
 422         printf ("C");
 423         image_rgb_to_yuyv (&rgb_logo, &yuyv_logo);
 424
 425         /* Save it into a header format */
 426
 427         printf ("S");
 428         image_save_header (&yuyv_logo, outputfile, varname);
 429
 430         /* Free original image and copy */
 431
 432         image_free (&rgb_logo);
 433         image_free (&yuyv_logo);
 434
 435         printf ("\n");
 436
 437         return 0;
 438 }