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 ** (C) 2007-2008 Mike Frysinger <vapier@gentoo.org> 7 ** 8 ** This is still under construction! 9 */ 10 11 #include <errno.h> 12 #include <getopt.h> 13 #include <stdbool.h> 14 #include <stdio.h> 15 #include <stdlib.h> 16 #include <string.h> 17 #include <unistd.h> 18 #include <sys/stat.h> 19 20 #pragma pack(1) 21 22 /*#define ENABLE_ASCII_BANNERS */ 23 24 typedef struct { 25 unsigned char id; 26 unsigned char ColorMapType; 27 unsigned char ImageTypeCode; 28 unsigned short ColorMapOrigin; 29 unsigned short ColorMapLenght; 30 unsigned char ColorMapEntrySize; 31 unsigned short ImageXOrigin; 32 unsigned short ImageYOrigin; 33 unsigned short ImageWidth; 34 unsigned short ImageHeight; 35 unsigned char ImagePixelSize; 36 unsigned char ImageDescriptorByte; 37 } tga_header_t; 38 39 typedef struct { 40 unsigned char r, g, b; 41 } rgb_t; 42 43 typedef struct { 44 unsigned char b, g, r; 45 } bgr_t; 46 47 typedef struct { 48 unsigned char Cb, y1, Cr, y2; 49 } yuyv_t; 50 51 typedef struct { 52 void *data, *palette; 53 int width, height, pixels, bpp, pixel_size, size, palette_size, yuyv; 54 } image_t; 55 56 void *xmalloc (size_t size) 57 { 58 void *ret = malloc (size); 59 if (!ret) { 60 fprintf (stderr, "\nerror: malloc(%zu) failed: %s", 61 size, strerror(errno)); 62 exit (1); 63 } 64 return ret; 65 } 66 67 void StringUpperCase (char *str) 68 { 69 int count = strlen (str); 70 char c; 71 72 while (count--) { 73 c = *str; 74 if ((c >= 'a') && (c <= 'z')) 75 *str = 'A' + (c - 'a'); 76 str++; 77 } 78 } 79 80 void StringLowerCase (char *str) 81 { 82 int count = strlen (str); 83 char c; 84 85 while (count--) { 86 c = *str; 87 if ((c >= 'A') && (c <= 'Z')) 88 *str = 'a' + (c - 'A'); 89 str++; 90 } 91 } 92 void pixel_rgb_to_yuyv (rgb_t * rgb_pixel, yuyv_t * yuyv_pixel) 93 { 94 unsigned int pR, pG, pB; 95 96 /* Transform (0-255) components to (0-100) */ 97 pR = rgb_pixel->r * 100 / 255; 98 pG = rgb_pixel->g * 100 / 255; 99 pB = rgb_pixel->b * 100 / 255; 100 101 /* Calculate YUV values (0-255) from RGB beetween 0-100 */ 102 yuyv_pixel->y1 = yuyv_pixel->y2 = 209 * (pR + pG + pB) / 300 + 16; 103 yuyv_pixel->Cb = pB - (pR / 4) - (pG * 3 / 4) + 128; 104 yuyv_pixel->Cr = pR - (pG * 3 / 4) - (pB / 4) + 128; 105 106 return; 107 } 108 109 void printlogo_rgb (rgb_t * data, int w, int h) 110 { 111 int x, y; 112 113 for (y = 0; y < h; y++) { 114 for (x = 0; x < w; x++, data++) 115 if ((data->r < 116 30) /*&&(data->g == 0)&&(data->b == 0) */ ) 117 printf (" "); 118 else 119 printf ("X"); 120 printf ("\n"); 121 } 122 } 123 124 void printlogo_yuyv (unsigned short *data, int w, int h) 125 { 126 int x, y; 127 128 for (y = 0; y < h; y++) { 129 for (x = 0; x < w; x++, data++) 130 if (*data == 0x1080) /* Because of inverted on i386! */ 131 printf (" "); 132 else 133 printf ("X"); 134 printf ("\n"); 135 } 136 } 137 138 static inline unsigned short le16_to_cpu (unsigned short val) 139 { 140 union { 141 unsigned char pval[2]; 142 unsigned short val; 143 } swapped; 144 145 swapped.val = val; 146 return (swapped.pval[1] << 8) + swapped.pval[0]; 147 } 148 149 int image_load_tga (image_t * image, char *filename) 150 { 151 FILE *file; 152 tga_header_t header; 153 int i; 154 unsigned char app; 155 rgb_t *p; 156 157 if ((file = fopen (filename, "rb")) == NULL) 158 return -1; 159 160 fread (&header, sizeof (header), 1, file); 161 162 /* byte swap: tga is little endian, host is ??? */ 163 header.ColorMapOrigin = le16_to_cpu (header.ColorMapOrigin); 164 header.ColorMapLenght = le16_to_cpu (header.ColorMapLenght); 165 header.ImageXOrigin = le16_to_cpu (header.ImageXOrigin); 166 header.ImageYOrigin = le16_to_cpu (header.ImageYOrigin); 167 header.ImageWidth = le16_to_cpu (header.ImageWidth); 168 header.ImageHeight = le16_to_cpu (header.ImageHeight); 169 170 image->width = header.ImageWidth; 171 image->height = header.ImageHeight; 172 173 switch (header.ImageTypeCode) { 174 case 2: /* Uncompressed RGB */ 175 image->yuyv = 0; 176 image->palette_size = 0; 177 image->palette = NULL; 178 break; 179 180 default: 181 printf ("Format not supported!\n"); 182 return -1; 183 } 184 185 image->bpp = header.ImagePixelSize; 186 image->pixel_size = ((image->bpp - 1) / 8) + 1; 187 image->pixels = image->width * image->height; 188 image->size = image->pixels * image->pixel_size; 189 image->data = xmalloc (image->size); 190 191 if (image->bpp != 24) { 192 printf ("Bpp not supported: %d!\n", image->bpp); 193 return -1; 194 } 195 196 fread (image->data, image->size, 1, file); 197 198 /* Swapping R and B values */ 199 200 p = image->data; 201 for (i = 0; i < image->pixels; i++, p++) { 202 app = p->r; 203 p->r = p->b; 204 p->b = app; 205 } 206 207 /* Swapping image */ 208 209 if (!(header.ImageDescriptorByte & 0x20)) { 210 unsigned char *temp = xmalloc (image->size); 211 int linesize = image->pixel_size * image->width; 212 void *dest = image->data, 213 *source = temp + image->size - linesize; 214 215 printf ("S"); 216 if (temp == NULL) { 217 printf ("Cannot alloc temp buffer!\n"); 218 return -1; 219 } 220 221 memcpy (temp, image->data, image->size); 222 for (i = 0; i < image->height; 223 i++, dest += linesize, source -= linesize) 224 memcpy (dest, source, linesize); 225 226 free (temp); 227 } 228 #ifdef ENABLE_ASCII_BANNERS 229 printlogo_rgb (image->data, image->width, image->height); 230 #endif 231 232 fclose (file); 233 return 0; 234 } 235 236 void image_free (image_t * image) 237 { 238 free (image->data); 239 free (image->palette); 240 } 241 242 int image_rgb_to_yuyv (image_t * rgb_image, image_t * yuyv_image) 243 { 244 rgb_t *rgb_ptr = (rgb_t *) rgb_image->data; 245 yuyv_t yuyv; 246 unsigned short *dest; 247 int count = 0; 248 249 yuyv_image->pixel_size = 2; 250 yuyv_image->bpp = 16; 251 yuyv_image->yuyv = 1; 252 yuyv_image->width = rgb_image->width; 253 yuyv_image->height = rgb_image->height; 254 yuyv_image->pixels = yuyv_image->width * yuyv_image->height; 255 yuyv_image->size = yuyv_image->pixels * yuyv_image->pixel_size; 256 dest = (unsigned short *) (yuyv_image->data = 257 xmalloc (yuyv_image->size)); 258 yuyv_image->palette = 0; 259 yuyv_image->palette_size = 0; 260 261 while ((count++) < rgb_image->pixels) { 262 pixel_rgb_to_yuyv (rgb_ptr++, &yuyv); 263 264 if ((count & 1) == 0) /* Was == 0 */ 265 memcpy (dest, ((void *) &yuyv) + 2, sizeof (short)); 266 else 267 memcpy (dest, (void *) &yuyv, sizeof (short)); 268 269 dest++; 270 } 271 272 #ifdef ENABLE_ASCII_BANNERS 273 printlogo_yuyv (yuyv_image->data, yuyv_image->width, 274 yuyv_image->height); 275 #endif 276 return 0; 277 } 278 279 int image_rgb888_to_rgb565(image_t *rgb888_image, image_t *rgb565_image) 280 { 281 rgb_t *rgb_ptr = (rgb_t *) rgb888_image->data; 282 unsigned short *dest; 283 int count = 0; 284 285 rgb565_image->pixel_size = 2; 286 rgb565_image->bpp = 16; 287 rgb565_image->yuyv = 0; 288 rgb565_image->width = rgb888_image->width; 289 rgb565_image->height = rgb888_image->height; 290 rgb565_image->pixels = rgb565_image->width * rgb565_image->height; 291 rgb565_image->size = rgb565_image->pixels * rgb565_image->pixel_size; 292 dest = (unsigned short *) (rgb565_image->data = 293 xmalloc(rgb565_image->size)); 294 rgb565_image->palette = 0; 295 rgb565_image->palette_size = 0; 296 297 while ((count++) < rgb888_image->pixels) { 298 299 *dest++ = ((rgb_ptr->b & 0xF8) << 8) | 300 ((rgb_ptr->g & 0xFC) << 3) | 301 (rgb_ptr->r >> 3); 302 rgb_ptr++; 303 } 304 305 return 0; 306 } 307 308 enum comp_t { 309 COMP_NONE, 310 COMP_GZIP, 311 COMP_LZMA, 312 }; 313 static enum comp_t compression = COMP_NONE; 314 static bool bss_storage = false; 315 316 int image_save_header (image_t * image, char *filename, char *varname) 317 { 318 FILE *file = fopen (filename, "w"); 319 char app[256], str[256] = "", def_name[64]; 320 int count = image->size, col = 0; 321 unsigned char *dataptr = image->data; 322 323 if (file == NULL) 324 return -1; 325 326 /* Author information */ 327 fprintf (file, 328 "/*\n * Generated by EasyLogo, (C) 2000 by Paolo Scaffardi\n *\n"); 329 fprintf (file, 330 " * To use this, include it and call: easylogo_plot(screen,&%s, width,x,y)\n *\n", 331 varname); 332 fprintf (file, 333 " * Where:\t'screen'\tis the pointer to the frame buffer\n"); 334 fprintf (file, " *\t\t'width'\tis the screen width\n"); 335 fprintf (file, " *\t\t'x'\t\tis the horizontal position\n"); 336 fprintf (file, " *\t\t'y'\t\tis the vertical position\n */\n\n"); 337 338 /* image compress */ 339 if (compression != COMP_NONE) { 340 const char *errstr = NULL; 341 unsigned char *compressed; 342 const char *comp_name; 343 struct stat st; 344 FILE *compfp; 345 size_t filename_len = strlen(filename); 346 char *compfilename = xmalloc(filename_len + 20); 347 char *compcmd = xmalloc(filename_len + 50); 348 349 sprintf(compfilename, "%s.bin", filename); 350 switch (compression) { 351 case COMP_GZIP: 352 strcpy(compcmd, "gzip"); 353 comp_name = "GZIP"; 354 break; 355 case COMP_LZMA: 356 strcpy(compcmd, "lzma"); 357 comp_name = "LZMA"; 358 break; 359 default: 360 errstr = "\nerror: unknown compression method"; 361 goto done; 362 } 363 strcat(compcmd, " > "); 364 strcat(compcmd, compfilename); 365 compfp = popen(compcmd, "w"); 366 if (!compfp) { 367 errstr = "\nerror: popen() failed"; 368 goto done; 369 } 370 if (fwrite(image->data, image->size, 1, compfp) != 1) { 371 errstr = "\nerror: writing data to gzip failed"; 372 goto done; 373 } 374 if (pclose(compfp)) { 375 errstr = "\nerror: gzip process failed"; 376 goto done; 377 } 378 379 compfp = fopen(compfilename, "r"); 380 if (!compfp) { 381 errstr = "\nerror: open() on gzip data failed"; 382 goto done; 383 } 384 if (stat(compfilename, &st)) { 385 errstr = "\nerror: stat() on gzip file failed"; 386 goto done; 387 } 388 compressed = xmalloc(st.st_size); 389 if (fread(compressed, st.st_size, 1, compfp) != 1) { 390 errstr = "\nerror: reading gzip data failed"; 391 goto done; 392 } 393 fclose(compfp); 394 395 unlink(compfilename); 396 397 dataptr = compressed; 398 count = st.st_size; 399 fprintf(file, "#define EASYLOGO_ENABLE_%s %i\n\n", comp_name, count); 400 if (bss_storage) 401 fprintf (file, "static unsigned char EASYLOGO_DECOMP_BUFFER[%i];\n\n", image->size); 402 403 done: 404 free(compfilename); 405 free(compcmd); 406 407 if (errstr) { 408 perror (errstr); 409 return -1; 410 } 411 } 412 413 /* Headers */ 414 fprintf (file, "#include <video_easylogo.h>\n\n"); 415 /* Macros */ 416 strcpy (def_name, varname); 417 StringUpperCase (def_name); 418 fprintf (file, "#define DEF_%s_WIDTH\t\t%d\n", def_name, 419 image->width); 420 fprintf (file, "#define DEF_%s_HEIGHT\t\t%d\n", def_name, 421 image->height); 422 fprintf (file, "#define DEF_%s_PIXELS\t\t%d\n", def_name, 423 image->pixels); 424 fprintf (file, "#define DEF_%s_BPP\t\t%d\n", def_name, image->bpp); 425 fprintf (file, "#define DEF_%s_PIXEL_SIZE\t%d\n", def_name, 426 image->pixel_size); 427 fprintf (file, "#define DEF_%s_SIZE\t\t%d\n\n", def_name, 428 image->size); 429 /* Declaration */ 430 fprintf (file, "unsigned char DEF_%s_DATA[] = {\n", 431 def_name); 432 433 /* Data */ 434 while (count) 435 switch (col) { 436 case 0: 437 sprintf (str, " 0x%02x", *dataptr++); 438 col++; 439 count--; 440 break; 441 442 case 16: 443 fprintf (file, "%s", str); 444 if (count > 0) 445 fprintf (file, ","); 446 fprintf (file, "\n"); 447 448 col = 0; 449 break; 450 451 default: 452 strcpy (app, str); 453 sprintf (str, "%s, 0x%02x", app, *dataptr++); 454 col++; 455 count--; 456 break; 457 } 458 459 if (col) 460 fprintf (file, "%s\n", str); 461 462 /* End of declaration */ 463 fprintf (file, "};\n\n"); 464 /* Variable */ 465 fprintf (file, "fastimage_t %s = {\n", varname); 466 fprintf (file, " DEF_%s_DATA,\n", def_name); 467 fprintf (file, " DEF_%s_WIDTH,\n", def_name); 468 fprintf (file, " DEF_%s_HEIGHT,\n", def_name); 469 fprintf (file, " DEF_%s_BPP,\n", def_name); 470 fprintf (file, " DEF_%s_PIXEL_SIZE,\n", def_name); 471 fprintf (file, " DEF_%s_SIZE\n};\n", def_name); 472 473 fclose (file); 474 475 return 0; 476 } 477 478 #define DEF_FILELEN 256 479 480 static void usage (int exit_status) 481 { 482 puts ( 483 "EasyLogo 1.0 (C) 2000 by Paolo Scaffardi\n" 484 "\n" 485 "Syntax: easylogo [options] inputfile [outputvar [outputfile]]\n" 486 "\n" 487 "Options:\n" 488 " -r Output RGB888 instead of YUYV\n" 489 " -s Output RGB565 instead of YUYV\n" 490 " -g Compress with gzip\n" 491 " -l Compress with lzma\n" 492 " -b Preallocate space in bss for decompressing image\n" 493 " -h Help output\n" 494 "\n" 495 "Where: 'inputfile' is the TGA image to load\n" 496 " 'outputvar' is the variable name to create\n" 497 " 'outputfile' is the output header file (default is 'inputfile.h')" 498 ); 499 exit (exit_status); 500 } 501 502 int main (int argc, char *argv[]) 503 { 504 int c; 505 bool use_rgb888 = false; 506 bool use_rgb565 = false; 507 char inputfile[DEF_FILELEN], 508 outputfile[DEF_FILELEN], varname[DEF_FILELEN]; 509 510 image_t rgb888_logo, rgb565_logo, yuyv_logo; 511 512 while ((c = getopt(argc, argv, "hrsglb")) > 0) { 513 switch (c) { 514 case 'h': 515 usage (0); 516 break; 517 case 'r': 518 use_rgb888 = true; 519 puts("Using 24-bit RGB888 Output Fromat"); 520 break; 521 case 's': 522 use_rgb565 = true; 523 puts("Using 16-bit RGB565 Output Fromat"); 524 break; 525 case 'g': 526 compression = COMP_GZIP; 527 puts("Compressing with gzip"); 528 break; 529 case 'l': 530 compression = COMP_LZMA; 531 puts("Compressing with lzma"); 532 break; 533 case 'b': 534 bss_storage = true; 535 puts("Preallocating bss space for decompressing image"); 536 break; 537 default: 538 usage (1); 539 break; 540 } 541 } 542 543 c = argc - optind; 544 if (c > 4 || c < 1) 545 usage (1); 546 547 strcpy (inputfile, argv[optind]); 548 549 if (c > 1) 550 strcpy (varname, argv[optind + 1]); 551 else { 552 /* transform "input.tga" to just "input" */ 553 char *dot; 554 strcpy (varname, inputfile); 555 dot = strchr (varname, '.'); 556 if (dot) 557 *dot = '\0'; 558 } 559 560 if (c > 2) 561 strcpy (outputfile, argv[optind + 2]); 562 else { 563 /* just append ".h" to input file name */ 564 strcpy (outputfile, inputfile); 565 strcat (outputfile, ".h"); 566 } 567 568 /* Make sure the output is sent as soon as we printf() */ 569 setbuf(stdout, NULL); 570 571 printf ("Doing '%s' (%s) from '%s'...", 572 outputfile, varname, inputfile); 573 574 /* Import TGA logo */ 575 576 printf ("L"); 577 if (image_load_tga(&rgb888_logo, inputfile) < 0) { 578 printf ("input file not found!\n"); 579 exit (1); 580 } 581 582 /* Convert, save, and free the image */ 583 584 if (!use_rgb888 && !use_rgb565) { 585 printf ("C"); 586 image_rgb_to_yuyv(&rgb888_logo, &yuyv_logo); 587 588 printf("S"); 589 image_save_header(&yuyv_logo, outputfile, varname); 590 image_free(&yuyv_logo); 591 } else if (use_rgb565) { 592 printf("C"); 593 image_rgb888_to_rgb565(&rgb888_logo, &rgb565_logo); 594 595 printf("S"); 596 image_save_header(&rgb565_logo, outputfile, varname); 597 image_free(&rgb565_logo); 598 } else { 599 printf("S"); 600 image_save_header(&rgb888_logo, outputfile, varname); 601 } 602 603 /* Free original image and copy */ 604 605 image_free(&rgb888_logo); 606 607 printf ("\n"); 608 609 return 0; 610 } 611