code.vuplus.com Git - vuplus_dvbapp/blob - lib/gdi/picload.cpp

   1 #include <png.h>        // must be included before Python.h because of setjmp
   2 #include <fcntl.h>
   3
   4 #include <lib/gdi/picload.h>
   5 #include <lib/gdi/picexif.h>
   6
   7 extern "C" {
   8 #include <jpeglib.h>
   9 #include <gif_lib.h>
  10 }
  11
  12 extern const uint32_t crc32_table[256];
  13
  14 DEFINE_REF(ePicLoad);
  15
  16 static std::string getSize(const char* file)
  17 {
  18         struct stat64 s;
  19         if (stat64(file, &s) < 0)
  20                 return "";
  21         char tmp[20];
  22         snprintf(tmp, 20, "%ld kB",(long)s.st_size / 1024);
  23         return tmp;
  24 }
  25
  26 static unsigned char *conv24to32(unsigned char *orgin, int size, unsigned char alpha = 0xFF)
  27 {
  28         int s, d;
  29         unsigned char *cr = new unsigned char[size * 4];
  30         if (cr == NULL)
  31         {
  32                 eDebug("[Picload] Error malloc");
  33                 return(orgin);
  34         }
  35
  36         for (s = 0, d = 0 ; s < (size * 3); s += 3, d += 4 )
  37         {
  38                 cr[d] = orgin[s];
  39                 cr[d+1] = orgin[s + 1];
  40                 cr[d+2] = orgin[s + 2];
  41                 cr[d+3] = alpha;
  42         }
  43         delete [] orgin;
  44         return(cr);
  45 }
  46
  47 static unsigned char *simple_resize(unsigned char *orgin, int ox, int oy, int dx, int dy)
  48 {
  49         unsigned char *cr, *p, *l;
  50         int i, j, k, ip;
  51         cr = new unsigned char[dx * dy * 3];
  52         if (cr == NULL)
  53         {
  54                 eDebug("[Picload] Error malloc");
  55                 return(orgin);
  56         }
  57         l = cr;
  58
  59         for (j = 0; j < dy; j++,l += dx * 3)
  60         {
  61                 p = orgin + (j * oy / dy * ox * 3);
  62                 for (i = 0, k = 0; i < dx; i++, k += 3)
  63                 {
  64                         ip = i * ox / dx * 3;
  65                         l[k] = p[ip];
  66                         l[k+1] = p[ip + 1];
  67                         l[k+2] = p[ip + 2];
  68                 }
  69         }
  70         delete [] orgin;
  71         return(cr);
  72 }
  73
  74 static unsigned char *color_resize(unsigned char * orgin, int ox, int oy, int dx, int dy)
  75 {
  76         unsigned char *cr, *p, *q;
  77         int i, j, k, l, xa, xb, ya, yb;
  78         int sq, r, g, b;
  79         cr = new unsigned char[dx * dy * 3];
  80         if (cr == NULL)
  81         {
  82                 eDebug("[Picload] Error malloc");
  83                 return(orgin);
  84         }
  85         p = cr;
  86
  87         for (j = 0; j < dy; j++)
  88         {
  89                 for (i = 0; i < dx; i++, p += 3)
  90                 {
  91                         xa = i * ox / dx;
  92                         ya = j * oy / dy;
  93                         xb = (i + 1) * ox / dx;
  94                         if (xb >= ox)
  95                                 xb = ox - 1;
  96                         yb = (j + 1) * oy / dy;
  97                         if (yb >= oy)
  98                                 yb = oy - 1;
  99                         for (l = ya, r = 0, g = 0, b = 0, sq = 0; l <= yb; l++)
 100                         {
 101                                 q = orgin + ((l * ox + xa) * 3);
 102                                 for (k = xa; k <= xb; k++, q += 3, sq++)
 103                                 {
 104                                         r += q[0]; g += q[1]; b += q[2];
 105                                 }
 106                         }
 107                         p[0] = r / sq; p[1] = g / sq; p[2] = b / sq;
 108                 }
 109         }
 110         delete [] orgin;
 111         return(cr);
 112 }
 113
 114 //---------------------------------------------------------------------------------------------
 115
 116 #define BMP_TORASTER_OFFSET 10
 117 #define BMP_SIZE_OFFSET 18
 118 #define BMP_BPP_OFFSET 28
 119 #define BMP_RLE_OFFSET 30
 120 #define BMP_COLOR_OFFSET 54
 121
 122 #define fill4B(a) ((4 - ((a) % 4 )) & 0x03)
 123
 124 struct color {
 125         unsigned char red;
 126         unsigned char green;
 127         unsigned char blue;
 128 };
 129
 130 static void fetch_pallete(int fd, struct color pallete[], int count)
 131 {
 132         unsigned char buff[4];
 133         lseek(fd, BMP_COLOR_OFFSET, SEEK_SET);
 134         for (int i = 0; i < count; i++)
 135         {
 136                 read(fd, buff, 4);
 137                 pallete[i].red = buff[2];
 138                 pallete[i].green = buff[1];
 139                 pallete[i].blue = buff[0];
 140         }
 141 }
 142
 143 static unsigned char *bmp_load(const char *file,  int *x, int *y)
 144 {
 145         unsigned char buff[4];
 146         struct color pallete[256];
 147
 148         int fd = open(file, O_RDONLY);
 149         if (fd == -1) return NULL;
 150         if (lseek(fd, BMP_SIZE_OFFSET, SEEK_SET) == -1) return NULL;
 151         read(fd, buff, 4);
 152         *x = buff[0] + (buff[1] << 8) + (buff[2] << 16) + (buff[3] << 24);
 153         read(fd, buff, 4);
 154         *y = buff[0] + (buff[1] << 8) + (buff[2] << 16) + (buff[3] << 24);
 155         if (lseek(fd, BMP_TORASTER_OFFSET, SEEK_SET) == -1) return NULL;
 156         read(fd, buff, 4);
 157         int raster = buff[0] + (buff[1] << 8) + (buff[2] << 16) + (buff[3] << 24);
 158         if (lseek(fd, BMP_BPP_OFFSET, SEEK_SET) == -1) return NULL;
 159         read(fd, buff, 2);
 160         int bpp = buff[0] + (buff[1] << 8);
 161
 162         unsigned char *pic_buffer = new unsigned char[(*x) * (*y) * 3];
 163         unsigned char *wr_buffer = pic_buffer + (*x) * ((*y) - 1) * 3;
 164
 165         switch (bpp)
 166         {
 167                 case 4:
 168                 {
 169                         int skip = fill4B((*x) / 2 + (*x) % 2);
 170                         fetch_pallete(fd, pallete, 16);
 171                         lseek(fd, raster, SEEK_SET);
 172                         unsigned char * tbuffer = new unsigned char[*x / 2 + 1];
 173                         if (tbuffer == NULL)
 174                                 return NULL;
 175                         for (int i = 0; i < *y; i++)
 176                         {
 177                                 read(fd, tbuffer, (*x) / 2 + *x % 2);
 178                                 int j;
 179                                 for (j = 0; j < (*x) / 2; j++)
 180                                 {
 181                                         unsigned char c1 = tbuffer[j] >> 4;
 182                                         unsigned char c2 = tbuffer[j] & 0x0f;
 183                                         *wr_buffer++ = pallete[c1].red;
 184                                         *wr_buffer++ = pallete[c1].green;
 185                                         *wr_buffer++ = pallete[c1].blue;
 186                                         *wr_buffer++ = pallete[c2].red;
 187                                         *wr_buffer++ = pallete[c2].green;
 188                                         *wr_buffer++ = pallete[c2].blue;
 189                                 }
 190                                 if ((*x) % 2)
 191                                 {
 192                                         unsigned char c1 = tbuffer[j] >> 4;
 193                                         *wr_buffer++ = pallete[c1].red;
 194                                         *wr_buffer++ = pallete[c1].green;
 195                                         *wr_buffer++ = pallete[c1].blue;
 196                                 }
 197                                 if (skip)
 198                                         read(fd, buff, skip);
 199                                 wr_buffer -= (*x) * 6;
 200                         }
 201                         break;
 202                 }
 203                 case 8:
 204                 {
 205                         int skip = fill4B(*x);
 206                         fetch_pallete(fd, pallete, 256);
 207                         lseek(fd, raster, SEEK_SET);
 208                         unsigned char * tbuffer = new unsigned char[*x];
 209                         if (tbuffer == NULL)
 210                                 return NULL;
 211                         for (int i = 0; i < *y; i++)
 212                         {
 213                                 read(fd, tbuffer, *x);
 214                                 for (int j = 0; j < *x; j++)
 215                                 {
 216                                         wr_buffer[j * 3] = pallete[tbuffer[j]].red;
 217                                         wr_buffer[j * 3 + 1] = pallete[tbuffer[j]].green;
 218                                         wr_buffer[j * 3 + 2] = pallete[tbuffer[j]].blue;
 219                                 }
 220                                 if (skip)
 221                                         read(fd, buff, skip);
 222                                 wr_buffer -= (*x) * 3;
 223                         }
 224                         break;
 225                 }
 226                 case 24:
 227                 {
 228                         int skip = fill4B((*x) * 3);
 229                         lseek(fd, raster, SEEK_SET);
 230                         for (int i = 0; i < (*y); i++)
 231                         {
 232                                 read(fd, wr_buffer, (*x) * 3);
 233                                 for (int j = 0; j < (*x) * 3 ; j = j + 3)
 234                                 {
 235                                         unsigned char c = wr_buffer[j];
 236                                         wr_buffer[j] = wr_buffer[j + 2];
 237                                         wr_buffer[j + 2] = c;
 238                                 }
 239                                 if (skip)
 240                                         read(fd, buff, skip);
 241                                 wr_buffer -= (*x) * 3;
 242                         }
 243                         break;
 244                 }
 245                 default:
 246                         return NULL;
 247         }
 248
 249         close(fd);
 250         return(pic_buffer);
 251 }
 252
 253 //---------------------------------------------------------------------
 254
 255 static unsigned char *png_load(const char *file, int *ox, int *oy)
 256 {
 257         //static const png_color_16 my_background = {0, 0, 0, 0, 0};
 258         png_structp png_ptr;
 259         png_infop info_ptr;
 260         png_uint_32 width, height;
 261         unsigned int i;
 262         int bit_depth, color_type, interlace_type;
 263         int number_passes, pass;
 264         png_byte * fbptr;
 265         FILE * fh;
 266
 267         if (!(fh = fopen(file, "rb"))) return NULL;
 268
 269         png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
 270         if (png_ptr == NULL)
 271                 return NULL;
 272         info_ptr = png_create_info_struct(png_ptr);
 273         if (info_ptr == NULL)
 274         {
 275                 png_destroy_read_struct(&png_ptr, (png_infopp)NULL, (png_infopp)NULL);
 276                 fclose(fh);
 277                 return NULL;
 278         }
 279
 280         if (setjmp(png_ptr->jmpbuf))
 281         {
 282                 png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
 283                 fclose(fh);
 284                 return 0;
 285         }
 286
 287         png_init_io(png_ptr, fh);
 288
 289         png_read_info(png_ptr, info_ptr);
 290         png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, &interlace_type, NULL, NULL);
 291
 292         if ((color_type == PNG_COLOR_TYPE_PALETTE)||(color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)||(png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)))
 293                 png_set_expand(png_ptr);
 294         if (bit_depth == 16)
 295                 png_set_strip_16(png_ptr);
 296         if (color_type == PNG_COLOR_TYPE_GRAY || color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
 297                 png_set_gray_to_rgb(png_ptr);
 298
 299         number_passes = png_set_interlace_handling(png_ptr);
 300         png_read_update_info(png_ptr, info_ptr);
 301
 302         int bpp =  png_get_rowbytes(png_ptr, info_ptr)/width;
 303         if ((bpp !=4) && (bpp !=3))
 304         {
 305                 eDebug("[PNG] Error processing");
 306                 return 0;
 307         }
 308
 309         if (width * height > 1000000) // 1000x1000 or equiv.
 310         {
 311                 eDebug("[png_load] image size is %d x %d, which is \"too large\".", (int)width, (int)height);
 312                 png_read_end(png_ptr, info_ptr);
 313                 png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
 314                 fclose(fh);
 315                 return 0;
 316         }
 317
 318         unsigned char *pic_buffer = new unsigned char[width * height * bpp];
 319         *ox=width;
 320         *oy=height;
 321
 322         for(pass = 0; pass < number_passes; pass++)
 323         {
 324                 fbptr = (png_byte *)pic_buffer;
 325                 for (i = 0; i < height; i++, fbptr += width * bpp)
 326                         png_read_row(png_ptr, fbptr, NULL);
 327         }
 328         png_read_end(png_ptr, info_ptr);
 329         png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
 330         fclose(fh);
 331         return(pic_buffer);
 332 }
 333
 334 //-------------------------------------------------------------------
 335
 336 struct r_jpeg_error_mgr
 337 {
 338         struct jpeg_error_mgr pub;
 339         jmp_buf envbuffer;
 340 };
 341
 342 void jpeg_cb_error_exit(j_common_ptr cinfo)
 343 {
 344         struct r_jpeg_error_mgr *mptr;
 345         mptr = (struct r_jpeg_error_mgr *) cinfo->err;
 346         (*cinfo->err->output_message) (cinfo);
 347         longjmp(mptr->envbuffer, 1);
 348 }
 349
 350 static unsigned char *jpeg_load(const char *file, int *ox, int *oy)
 351 {
 352         struct jpeg_decompress_struct cinfo;
 353         struct jpeg_decompress_struct *ciptr = &cinfo;
 354         struct r_jpeg_error_mgr emgr;
 355         FILE *fh;
 356         unsigned char *pic_buffer=NULL;
 357
 358         if (!(fh = fopen(file, "rb")))
 359                 return NULL;
 360
 361         ciptr->err = jpeg_std_error(&emgr.pub);
 362         emgr.pub.error_exit = jpeg_cb_error_exit;
 363         if (setjmp(emgr.envbuffer) == 1)
 364         {
 365                 jpeg_destroy_decompress(ciptr);
 366                 fclose(fh);
 367                 return NULL;
 368         }
 369
 370         jpeg_create_decompress(ciptr);
 371         jpeg_stdio_src(ciptr, fh);
 372         jpeg_read_header(ciptr, TRUE);
 373         ciptr->out_color_space = JCS_RGB;
 374         ciptr->scale_denom = 1;
 375
 376         jpeg_start_decompress(ciptr);
 377
 378         *ox=ciptr->output_width;
 379         *oy=ciptr->output_height;
 380
 381         if(ciptr->output_components == 3)
 382         {
 383                 JSAMPLE *lb = (JSAMPLE *)(*ciptr->mem->alloc_small)((j_common_ptr) ciptr, JPOOL_PERMANENT, ciptr->output_width * ciptr->output_components);
 384                 pic_buffer = new unsigned char[ciptr->output_height * ciptr->output_width * ciptr->output_components];
 385                 unsigned char *bp = pic_buffer;
 386
 387                 while (ciptr->output_scanline < ciptr->output_height)
 388                 {
 389                         jpeg_read_scanlines(ciptr, &lb, 1);
 390                         memcpy(bp, lb, ciptr->output_width * ciptr->output_components);
 391                         bp += ciptr->output_width * ciptr->output_components;
 392                 }
 393         }
 394         jpeg_finish_decompress(ciptr);
 395         jpeg_destroy_decompress(ciptr);
 396         fclose(fh);
 397         return(pic_buffer);
 398 }
 399
 400
 401 static int jpeg_save(const char * filename, int ox, int oy, unsigned char *pic_buffer)
 402 {
 403         struct jpeg_compress_struct cinfo;
 404         struct jpeg_error_mgr jerr;
 405         FILE * outfile;
 406         JSAMPROW row_pointer[1];
 407         int row_stride;
 408
 409         cinfo.err = jpeg_std_error(&jerr);
 410         jpeg_create_compress(&cinfo);
 411
 412         if ((outfile = fopen(filename, "wb")) == NULL)
 413         {
 414                 eDebug("[Picload] jpeg can't open %s", filename);
 415                 return 1;
 416         }
 417         eDebug("[Picload] save Thumbnail... %s",filename);
 418
 419         jpeg_stdio_dest(&cinfo, outfile);
 420
 421         cinfo.image_width = ox;
 422         cinfo.image_height = oy;
 423         cinfo.input_components = 3;
 424         cinfo.in_color_space = JCS_RGB;
 425         jpeg_set_defaults(&cinfo);
 426         jpeg_set_quality(&cinfo, 70, TRUE );
 427         jpeg_start_compress(&cinfo, TRUE);
 428         row_stride = ox * 3;
 429         while (cinfo.next_scanline < cinfo.image_height)
 430         {
 431                 row_pointer[0] = & pic_buffer[cinfo.next_scanline * row_stride];
 432                 (void) jpeg_write_scanlines(&cinfo, row_pointer, 1);
 433         }
 434         jpeg_finish_compress(&cinfo);
 435         fclose(outfile);
 436         jpeg_destroy_compress(&cinfo);
 437         return 0;
 438 }
 439
 440 //-------------------------------------------------------------------
 441
 442 inline void m_rend_gif_decodecolormap(unsigned char *cmb, unsigned char *rgbb, ColorMapObject *cm, int s, int l)
 443 {
 444         GifColorType *cmentry;
 445         int i;
 446         for (i = 0; i < l; i++)
 447         {
 448                 cmentry = &cm->Colors[cmb[i]];
 449                 *(rgbb++) = cmentry->Red;
 450                 *(rgbb++) = cmentry->Green;
 451                 *(rgbb++) = cmentry->Blue;
 452         }
 453 }
 454
 455 static unsigned char *gif_load(const char *file, int *ox, int *oy)
 456 {
 457         unsigned char *pic_buffer = NULL;
 458         int px, py, i, j, ibxs;
 459         unsigned char *fbptr;
 460         unsigned char *lb=NULL;
 461         unsigned char *slb=NULL;
 462         GifFileType *gft;
 463         GifRecordType rt;
 464         GifByteType *extension;
 465         ColorMapObject *cmap;
 466         int cmaps;
 467         int extcode;
 468
 469         gft = DGifOpenFileName(file);
 470         if (gft == NULL)
 471                 return NULL;
 472         do
 473         {
 474                 if (DGifGetRecordType(gft, &rt) == GIF_ERROR)
 475                         goto ERROR_R;
 476                 switch(rt)
 477                 {
 478                         case IMAGE_DESC_RECORD_TYPE:
 479                                 if (DGifGetImageDesc(gft) == GIF_ERROR)
 480                                         goto ERROR_R;
 481                                 *ox = px = gft->Image.Width;
 482                                 *oy = py = gft->Image.Height;
 483                                 pic_buffer = new unsigned char[px * py * 3];
 484                                 lb = (unsigned char *)malloc(px * 3);
 485                                 slb = (unsigned char *) malloc(px);
 486
 487                                 if (lb != NULL && slb != NULL)
 488                                 {
 489                                         cmap = (gft->Image.ColorMap ? gft->Image.ColorMap : gft->SColorMap);
 490                                         cmaps = cmap->ColorCount;
 491
 492                                         ibxs = ibxs * 3;
 493                                         fbptr = pic_buffer;
 494                                         if (!(gft->Image.Interlace))
 495                                         {
 496                                                 for (i = 0; i < py; i++, fbptr += px * 3)
 497                                                 {
 498                                                         if (DGifGetLine(gft, slb, px) == GIF_ERROR)
 499                                                                 goto ERROR_R;
 500                                                         m_rend_gif_decodecolormap(slb, lb, cmap, cmaps, px);
 501                                                         memcpy(fbptr, lb, px * 3);
 502                                                 }
 503                                         }
 504                                         else
 505                                         {
 506                                                 for (j = 0; j < 4; j++)
 507                                                 {
 508                                                         fbptr = pic_buffer;
 509                                                         for (i = 0; i < py; i++, fbptr += px * 3)
 510                                                         {
 511                                                                 if (DGifGetLine(gft, slb, px) == GIF_ERROR)
 512                                                                         goto ERROR_R;
 513                                                                 m_rend_gif_decodecolormap(slb, lb, cmap, cmaps, px);
 514                                                                 memcpy(fbptr, lb, px * 3);
 515                                                         }
 516                                                 }
 517                                         }
 518                                 }
 519                                 if (lb)
 520                                 {
 521                                         free(lb);
 522                                         lb=NULL;
 523                                 }
 524                                 if (slb)
 525                                 {
 526                                         free(slb);
 527                                         slb=NULL;
 528                                 }
 529                                 break;
 530                         case EXTENSION_RECORD_TYPE:
 531                                 if (DGifGetExtension(gft, &extcode, &extension) == GIF_ERROR)
 532                                         goto ERROR_R;
 533                                 while (extension != NULL)
 534                                         if (DGifGetExtensionNext(gft, &extension) == GIF_ERROR)
 535                                                 goto ERROR_R;
 536                                 break;
 537                         default:
 538                                 break;
 539                 }
 540         }
 541         while (rt != TERMINATE_RECORD_TYPE);
 542
 543         DGifCloseFile(gft);
 544         return(pic_buffer);
 545 ERROR_R:
 546         eDebug("[Picload] <Error gif>");
 547         if (lb)         free(lb);
 548         if (slb)        free(slb);
 549         DGifCloseFile(gft);
 550         return NULL;
 551 }
 552
 553 //---------------------------------------------------------------------------------------------
 554
 555 ePicLoad::ePicLoad()
 556         :msg_thread(this,1), msg_main(eApp,1)
 557 {
 558         CONNECT(msg_thread.recv_msg, ePicLoad::gotMessage);
 559         CONNECT(msg_main.recv_msg, ePicLoad::gotMessage);
 560
 561         threadrunning = false;
 562         m_filepara = NULL;
 563         m_conf.max_x = 0;
 564         m_conf.max_y = 0;
 565         m_conf.aspect_ratio = 1.066400; //4:3
 566         m_conf.usecache = false;
 567         m_conf.resizetype = 1;
 568         memset(m_conf.background,0x00,sizeof(m_conf.background));
 569         m_conf.thumbnailsize = 180;
 570 }
 571
 572 void ePicLoad::waitFinished()
 573 {
 574         msg_thread.send(Message(Message::quit));
 575         kill();
 576 }
 577
 578 ePicLoad::~ePicLoad()
 579 {
 580         if (threadrunning)
 581                 waitFinished();
 582         if(m_filepara != NULL)
 583                 delete m_filepara;
 584 }
 585
 586 void ePicLoad::thread_finished()
 587 {
 588         threadrunning=false;
 589 }
 590
 591 void ePicLoad::thread()
 592 {
 593         hasStarted();
 594         threadrunning=true;
 595         nice(4);
 596         runLoop();
 597 }
 598
 599 void ePicLoad::decodePic()
 600 {
 601         eDebug("[Picload] decode picture... %s",m_filepara->file);
 602
 603         switch(m_filepara->id)
 604         {
 605                 case F_PNG:     m_filepara->pic_buffer = png_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy);  break;
 606                 case F_JPEG:    m_filepara->pic_buffer = jpeg_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy); break;
 607                 case F_BMP:     m_filepara->pic_buffer = bmp_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy);  break;
 608                 case F_GIF:     m_filepara->pic_buffer = gif_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy);  break;
 609         }
 610
 611         if(m_filepara->pic_buffer != NULL)
 612         {
 613                 resizePic();
 614         }
 615 }
 616
 617 void ePicLoad::decodeThumb()
 618 {
 619         eDebug("[Picload] get Thumbnail... %s",m_filepara->file);
 620
 621         bool exif_thumbnail = false;
 622         bool cachefile_found = false;
 623         std::string cachefile = "";
 624         std::string cachedir = "/.Thumbnails";
 625
 626         if(m_filepara->id == F_JPEG)
 627         {
 628                 Cexif *exif = new Cexif;
 629                 if(exif->DecodeExif(m_filepara->file, 1))
 630                 {
 631                         if(exif->m_exifinfo->IsExif)
 632                         {
 633                                 if(exif->m_exifinfo->Thumnailstate==2)
 634                                 {
 635                                         m_filepara->file = strdup(THUMBNAILTMPFILE);
 636                                         exif_thumbnail = true;
 637                                         eDebug("[Picload] Exif Thumbnail found");
 638                                 }
 639                                 m_filepara->addExifInfo(exif->m_exifinfo->CameraMake);
 640                                 m_filepara->addExifInfo(exif->m_exifinfo->CameraModel);
 641                                 m_filepara->addExifInfo(exif->m_exifinfo->DateTime);
 642                                 char buf[20];
 643                                 snprintf(buf, 20, "%d x %d", exif->m_exifinfo->Width, exif->m_exifinfo->Height);
 644                                 m_filepara->addExifInfo(buf);
 645                         }
 646                         exif->ClearExif();
 647                 }
 648                 delete exif;
 649         }
 650
 651         if((! exif_thumbnail) && m_conf.usecache)
 652         {
 653                 if(FILE *f=fopen(m_filepara->file, "rb"))
 654                 {
 655                         int c;
 656                         int count = 1024*100;
 657                         unsigned long crc32 = 0;
 658                         char crcstr[9];*crcstr=0;
 659
 660                         while ((c=getc(f))!=EOF)
 661                         {
 662                                 crc32 = crc32_table[((crc32) ^ (c)) & 0xFF] ^ ((crc32) >> 8);
 663                                 if(--count < 0) break;
 664                         }
 665
 666                         fclose(f);
 667                         crc32 = ~crc32;
 668                         sprintf(crcstr, "%08lX", crc32);
 669
 670                         cachedir = m_filepara->file;
 671                         unsigned int pos = cachedir.find_last_of("/");
 672                         if (pos != std::string::npos)
 673                                 cachedir = cachedir.substr(0, pos) + "/.Thumbnails";
 674
 675                         cachefile = cachedir + std::string("/pc_") + crcstr;
 676                         if(!access(cachefile.c_str(), R_OK))
 677                         {
 678                                 cachefile_found = true;
 679                                 m_filepara->file = strdup(cachefile.c_str());
 680                                 m_filepara->id = F_JPEG;
 681                                 eDebug("[Picload] Cache File found");
 682                         }
 683                 }
 684         }
 685
 686         switch(m_filepara->id)
 687         {
 688                 case F_PNG:     m_filepara->pic_buffer = png_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy);  break;
 689                 case F_JPEG:    m_filepara->pic_buffer = jpeg_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy); break;
 690                 case F_BMP:     m_filepara->pic_buffer = bmp_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy);  break;
 691                 case F_GIF:     m_filepara->pic_buffer = gif_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy);  break;
 692         }
 693
 694         if(exif_thumbnail)
 695                 ::unlink(THUMBNAILTMPFILE);
 696
 697         if(m_filepara->pic_buffer != NULL)
 698         {
 699                 //save cachefile
 700                 if(m_conf.usecache && (! exif_thumbnail) && (! cachefile_found))
 701                 {
 702                         if(access(cachedir.c_str(), R_OK))
 703                                 ::mkdir(cachedir.c_str(), 0755);
 704
 705                         //resize for Thumbnail
 706                         int imx, imy;
 707                         if (m_filepara->ox <= m_filepara->oy)
 708                         {
 709                                 imy = m_conf.thumbnailsize;
 710                                 imx = (int)( (m_conf.thumbnailsize * ((double)m_filepara->ox)) / ((double)m_filepara->oy) );
 711                         }
 712                         else
 713                         {
 714                                 imx = m_conf.thumbnailsize;
 715                                 imy = (int)( (m_conf.thumbnailsize * ((double)m_filepara->oy)) / ((double)m_filepara->ox) );
 716                         }
 717
 718                         m_filepara->pic_buffer = color_resize(m_filepara->pic_buffer, m_filepara->ox, m_filepara->oy, imx, imy);
 719                         m_filepara->ox = imx;
 720                         m_filepara->oy = imy;
 721
 722                         if(jpeg_save(cachefile.c_str(), m_filepara->ox, m_filepara->oy, m_filepara->pic_buffer))
 723                                 eDebug("[Picload] error saving cachefile");
 724                 }
 725
 726                 resizePic();
 727         }
 728 }
 729
 730 void ePicLoad::resizePic()
 731 {
 732         int imx, imy;
 733
 734         if((m_conf.aspect_ratio * m_filepara->oy * m_filepara->max_x / m_filepara->ox) <= m_filepara->max_y)
 735         {
 736                 imx = m_filepara->max_x;
 737                 imy = (int)(m_conf.aspect_ratio * m_filepara->oy * m_filepara->max_x / m_filepara->ox);
 738         }
 739         else
 740         {
 741                 imx = (int)((1.0/m_conf.aspect_ratio) * m_filepara->ox * m_filepara->max_y / m_filepara->oy);
 742                 imy = m_filepara->max_y;
 743         }
 744
 745         if(m_conf.resizetype)
 746                 m_filepara->pic_buffer = color_resize(m_filepara->pic_buffer, m_filepara->ox, m_filepara->oy, imx, imy);
 747         else
 748                 m_filepara->pic_buffer = simple_resize(m_filepara->pic_buffer, m_filepara->ox, m_filepara->oy, imx, imy);
 749
 750         m_filepara->ox = imx;
 751         m_filepara->oy = imy;
 752 }
 753
 754 void ePicLoad::gotMessage(const Message &msg)
 755 {
 756         switch (msg.type)
 757         {
 758                 case Message::decode_Pic:
 759                         decodePic();
 760                         msg_main.send(Message(Message::decode_finished));
 761                         break;
 762                 case Message::decode_Thumb:
 763                         decodeThumb();
 764                         msg_main.send(Message(Message::decode_finished));
 765                         break;
 766                 case Message::quit: // called from decode thread
 767                         eDebug("[Picload] decode thread ... got quit msg");
 768                         quit(0);
 769                         break;
 770                 case Message::decode_finished: // called from main thread
 771                         //eDebug("[Picload] decode finished... %s", m_filepara->file);
 772                         if(m_filepara->callback)
 773                         {
 774                                 PictureData(m_filepara->picinfo.c_str());
 775                         }
 776                         else
 777                         {
 778                                 if(m_filepara != NULL)
 779                                 {
 780                                         delete m_filepara;
 781                                         m_filepara = NULL;
 782                                 }
 783                         }
 784                         break;
 785                 default:
 786                         eDebug("unhandled thread message");
 787         }
 788 }
 789
 790 int ePicLoad::startThread(int what, const char *file, int x, int y)
 791 {
 792         if(threadrunning && m_filepara != NULL)
 793         {
 794                 eDebug("[Picload] thread running");
 795                 m_filepara->callback = false;
 796                 return 1;
 797         }
 798
 799         if(m_filepara != NULL)
 800         {
 801                 delete m_filepara;
 802                 m_filepara = NULL;
 803         }
 804
 805         int file_id = -1;
 806         unsigned char id[10];
 807         int fd = ::open(file, O_RDONLY);
 808         if (fd == -1) return 1;
 809         ::read(fd, id, 10);
 810         ::close(fd);
 811
 812         if(id[1] == 'P' && id[2] == 'N' && id[3] == 'G')                        file_id = F_PNG;
 813         else if(id[6] == 'J' && id[7] == 'F' && id[8] == 'I' && id[9] == 'F')   file_id = F_JPEG;
 814         else if(id[0] == 0xff && id[1] == 0xd8 && id[2] == 0xff)                file_id = F_JPEG;
 815         else if(id[0] == 'B' && id[1] == 'M' )                                  file_id = F_BMP;
 816         else if(id[0] == 'G' && id[1] == 'I' && id[2] == 'F')                   file_id = F_GIF;
 817
 818         if(file_id < 0)
 819         {
 820                 eDebug("[Picload] <format not supportet>");
 821                 return 1;
 822         }
 823
 824         m_filepara = new Cfilepara(file, file_id, getSize(file));
 825         x > 0 ? m_filepara->max_x = x : m_filepara->max_x = m_conf.max_x;
 826         y > 0 ? m_filepara->max_y = y : m_filepara->max_y = m_conf.max_y;
 827
 828         if(m_filepara->max_x <= 0 || m_filepara->max_y <= 0)
 829         {
 830                 delete m_filepara;
 831                 m_filepara = NULL;
 832                 eDebug("[Picload] <error in Para>");
 833                 return 1;
 834         }
 835
 836         if(what==1)
 837                 msg_thread.send(Message(Message::decode_Pic));
 838         else
 839                 msg_thread.send(Message(Message::decode_Thumb));
 840         run();
 841         return 0;
 842 }
 843
 844 RESULT ePicLoad::startDecode(const char *file, int x, int y)
 845 {
 846         return startThread(1, file, x, y);
 847 }
 848
 849 RESULT ePicLoad::getThumbnail(const char *file, int x, int y)
 850 {
 851         return startThread(0, file, x, y);
 852 }
 853
 854 PyObject *ePicLoad::getInfo(const char *filename)
 855 {
 856         ePyObject list;
 857
 858         Cexif *exif = new Cexif;
 859         if(exif->DecodeExif(filename))
 860         {
 861                 if(exif->m_exifinfo->IsExif)
 862                 {
 863                         char tmp[256];
 864                         int pos=0;
 865                         list = PyList_New(23);
 866                         PyList_SET_ITEM(list, pos++,  PyString_FromString(filename));
 867                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->Version));
 868                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->CameraMake));
 869                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->CameraModel));
 870                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->DateTime));
 871                         PyList_SET_ITEM(list, pos++,  PyString_FromFormat("%d x %d", exif->m_exifinfo->Width, exif->m_exifinfo->Height));
 872                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->FlashUsed));
 873                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->Orientation));
 874                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->Comments));
 875                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->MeteringMode));
 876                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->ExposureProgram));
 877                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->LightSource));
 878                         PyList_SET_ITEM(list, pos++,  PyString_FromFormat("%d", exif->m_exifinfo->CompressionLevel));
 879                         PyList_SET_ITEM(list, pos++,  PyString_FromFormat("%d", exif->m_exifinfo->ISOequivalent));
 880                         sprintf(tmp, "%.2f", exif->m_exifinfo->Xresolution);
 881                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 882                         sprintf(tmp, "%.2f", exif->m_exifinfo->Yresolution);
 883                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 884                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->ResolutionUnit));
 885                         sprintf(tmp, "%.2f", exif->m_exifinfo->Brightness);
 886                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 887                         sprintf(tmp, "%.5f sec.", exif->m_exifinfo->ExposureTime);
 888                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 889                         sprintf(tmp, "%.5f", exif->m_exifinfo->ExposureBias);
 890                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 891                         sprintf(tmp, "%.5f", exif->m_exifinfo->Distance);
 892                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 893                         sprintf(tmp, "%.5f", exif->m_exifinfo->CCDWidth);
 894                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 895                         sprintf(tmp, "%.2f", exif->m_exifinfo->ApertureFNumber);
 896                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 897                 }
 898                 else
 899                 {
 900                         list = PyList_New(2);
 901                         PyList_SET_ITEM(list, 0, PyString_FromString(filename));
 902                         PyList_SET_ITEM(list, 1, PyString_FromString(exif->m_szLastError));
 903                 }
 904                 exif->ClearExif();
 905         }
 906         else
 907         {
 908                 list = PyList_New(2);
 909                 PyList_SET_ITEM(list, 0, PyString_FromString(filename));
 910                 PyList_SET_ITEM(list, 1, PyString_FromString(exif->m_szLastError));
 911         }
 912         delete exif;
 913
 914         return list ? (PyObject*)list : (PyObject*)PyList_New(0);
 915 }
 916
 917 int ePicLoad::getData(ePtr<gPixmap> &result)
 918 {
 919         result = 0;
 920         if(m_filepara->pic_buffer == NULL) return 0;
 921
 922         m_filepara->pic_buffer = conv24to32(m_filepara->pic_buffer, m_filepara->ox * m_filepara->oy);
 923
 924         result=new gPixmap(eSize(m_filepara->max_x, m_filepara->max_y), 32);
 925         gSurface *surface = result->surface;
 926         int a=0, b=0;
 927         int nc=0, oc=0;
 928         int o_y=0, u_y=0, v_x=0, h_x=0;
 929
 930         unsigned char *tmp_buffer=((unsigned char *)(surface->data));
 931
 932         if(m_filepara->oy < m_filepara->max_y)
 933         {
 934                 o_y = (m_filepara->max_y - m_filepara->oy) / 2;
 935                 u_y = m_filepara->max_y - m_filepara->oy - o_y;
 936         }
 937         if(m_filepara->ox < m_filepara->max_x)
 938         {
 939                 v_x = (m_filepara->max_x - m_filepara->ox) / 2;
 940                 h_x = m_filepara->max_x - m_filepara->ox - v_x;
 941         }
 942
 943         if(m_filepara->oy < m_filepara->max_y)
 944         {
 945                 for(a=0; a<(o_y*m_filepara->ox); a++, nc+=4)
 946                 {
 947                         tmp_buffer=((unsigned char *)(surface->data)) + nc;
 948                         memcpy(tmp_buffer, m_conf.background, sizeof(m_conf.background));
 949                 }
 950         }
 951
 952         for(a=0; a<m_filepara->oy; a++)
 953         {
 954                 if(m_filepara->ox < m_filepara->max_x)
 955                 {
 956                         for(b=0; b<v_x; b++, nc+=4)
 957                         {
 958                                 tmp_buffer=((unsigned char *)(surface->data)) + nc;
 959                                 memcpy(tmp_buffer, m_conf.background, sizeof(m_conf.background));
 960                         }
 961                 }
 962
 963                 for(b=0; b<(m_filepara->ox*4); b+=4, nc+=4)
 964                 {
 965                         tmp_buffer=((unsigned char *)(surface->data)) + nc;
 966                         tmp_buffer[2] = m_filepara->pic_buffer[oc++];
 967                         tmp_buffer[1] = m_filepara->pic_buffer[oc++];
 968                         tmp_buffer[0] = m_filepara->pic_buffer[oc++];
 969                         tmp_buffer[3] = m_filepara->pic_buffer[oc++];
 970                 }
 971
 972                 if(m_filepara->ox < m_filepara->max_x)
 973                 {
 974                         for(b=0; b<h_x; b++, nc+=4)
 975                         {
 976                                 tmp_buffer=((unsigned char *)(surface->data)) + nc;
 977                                 memcpy(tmp_buffer, m_conf.background, sizeof(m_conf.background));
 978                         }
 979                 }
 980         }
 981
 982         if(m_filepara->oy < m_filepara->max_y)
 983         {
 984                 for(a=0; a<(u_y*m_filepara->ox); a++, nc+=4)
 985                 {
 986                         tmp_buffer=((unsigned char *)(surface->data)) + nc;
 987                         memcpy(tmp_buffer, m_conf.background, sizeof(m_conf.background));
 988                 }
 989         }
 990
 991         surface->clut.data=0;
 992         surface->clut.colors=0;
 993         surface->clut.start=0;
 994
 995         delete m_filepara;
 996         m_filepara = NULL;
 997
 998         return 0;
 999 }
1000
1001 RESULT ePicLoad::setPara(PyObject *val)
1002 {
1003         if (!PyList_Check(val))
1004                 return 0;
1005         if (PyList_Size(val) < 6)
1006                 return 0;
1007
1008         m_conf.max_x            = PyInt_AsLong( PyList_GET_ITEM(val, 0));
1009         m_conf.max_y            = PyInt_AsLong( PyList_GET_ITEM(val, 1));
1010         m_conf.aspect_ratio     = PyFloat_AsDouble( PyList_GET_ITEM(val, 2));
1011         m_conf.usecache         = PyInt_AsLong( PyList_GET_ITEM(val, 3));
1012         m_conf.resizetype       = PyInt_AsLong( PyList_GET_ITEM(val, 4));
1013         const char *bg_str      = PyString_AsString( PyList_GET_ITEM(val, 5));
1014
1015         if(bg_str[0] == '#' && strlen(bg_str)==9)
1016         {
1017                 int bg = strtoul(bg_str+1, NULL, 16);
1018                 m_conf.background[0] = bg&0xFF;         //BB
1019                 m_conf.background[1] = (bg>>8)&0xFF;    //GG
1020                 m_conf.background[2] = (bg>>16)&0xFF;   //RR
1021                 m_conf.background[3] = bg>>24;          //AA
1022         }
1023
1024         eDebug("[Picload] setPara max-X=%d max-Y=%d aspect_ratio=%lf cache=%d resize=%d bg=#%02X%02X%02X%02X", m_conf.max_x, m_conf.max_y, m_conf.aspect_ratio, (int)m_conf.usecache, (int)m_conf.resizetype, m_conf.background[3], m_conf.background[2], m_conf.background[1], m_conf.background[0]);
1025         return 1;
1026 }
1027
1028 //------------------------------------------------------------------------------------
1029
1030 //for old plugins
1031 SWIG_VOID(int) loadPic(ePtr<gPixmap> &result, std::string filename, int x, int y, int aspect, int resize_mode, int rotate, int background, std::string cachefile)
1032 {
1033         result = 0;
1034         eDebug("deprecated loadPic function used!!! please use the non blocking version! you can see demo code in Pictureplayer plugin... this function is removed in the near future!");
1035         ePicLoad mPL;
1036
1037         double  aspect_ratio;
1038         switch(aspect)
1039         {
1040                 case 1:         aspect_ratio = 1.778 / ((double)720/576); break; //16:9
1041                 case 2:         aspect_ratio = 1.600 / ((double)720/576); break; //16:10
1042                 case 3:         aspect_ratio = 1.250 / ((double)720/576); break; //5:4
1043                 default:        aspect_ratio = 1.333 / ((double)720/576); //4:3
1044         }
1045
1046         ePyObject list = PyList_New(6);
1047         PyList_SET_ITEM(list, 0,  PyLong_FromLong(x));
1048         PyList_SET_ITEM(list, 1,  PyLong_FromLong(y));
1049         PyList_SET_ITEM(list, 2,  PyFloat_FromDouble(aspect_ratio));
1050         PyList_SET_ITEM(list, 3,  PyLong_FromLong(0));
1051         PyList_SET_ITEM(list, 4,  PyLong_FromLong(resize_mode));
1052         if(background)
1053                 PyList_SET_ITEM(list, 5,  PyString_FromString("#ff000000"));
1054         else
1055                 PyList_SET_ITEM(list, 5,  PyString_FromString("#00000000"));
1056
1057         mPL.setPara(list);
1058
1059         if(!mPL.startDecode(filename.c_str()))
1060         {
1061                 mPL.waitFinished(); // this blocks until the thread is finished
1062                 mPL.getData(result);
1063         }
1064
1065         return 0;
1066 }