lib/gdi/picload.cpp

   1 #define PNG_SKIP_SETJMP_CHECK
   2 #include <png.h>
   3 #include <fcntl.h>
   4
   5 #include <lib/gdi/picload.h>
   6 #include <lib/gdi/picexif.h>
   7
   8 extern "C" {
   9 #include <jpeglib.h>
  10 #include <gif_lib.h>
  11 }
  12
  13 extern const uint32_t crc32_table[256];
  14
  15 DEFINE_REF(ePicLoad);
  16
  17 static std::string getSize(const char* file)
  18 {
  19         struct stat64 s;
  20         if (stat64(file, &s) < 0)
  21                 return "";
  22         char tmp[20];
  23         snprintf(tmp, 20, "%ld kB",(long)s.st_size / 1024);
  24         return tmp;
  25 }
  26
  27 static unsigned char *conv24to32(unsigned char *orgin, int size, unsigned char alpha = 0xFF)
  28 {
  29         int s, d;
  30         unsigned char *cr = new unsigned char[size * 4];
  31         if (cr == NULL)
  32         {
  33                 eDebug("[Picload] Error malloc");
  34                 return(orgin);
  35         }
  36
  37         for (s = 0, d = 0 ; s < (size * 3); s += 3, d += 4 )
  38         {
  39                 cr[d] = orgin[s];
  40                 cr[d+1] = orgin[s + 1];
  41                 cr[d+2] = orgin[s + 2];
  42                 cr[d+3] = alpha;
  43         }
  44         delete [] orgin;
  45         return(cr);
  46 }
  47
  48 static unsigned char *simple_resize(unsigned char *orgin, int ox, int oy, int dx, int dy)
  49 {
  50         unsigned char *cr, *p, *l;
  51         int i, j, k, ip;
  52         cr = new unsigned char[dx * dy * 3];
  53         if (cr == NULL)
  54         {
  55                 eDebug("[Picload] Error malloc");
  56                 return(orgin);
  57         }
  58         l = cr;
  59
  60         for (j = 0; j < dy; j++,l += dx * 3)
  61         {
  62                 p = orgin + (j * oy / dy * ox * 3);
  63                 for (i = 0, k = 0; i < dx; i++, k += 3)
  64                 {
  65                         ip = i * ox / dx * 3;
  66                         l[k] = p[ip];
  67                         l[k+1] = p[ip + 1];
  68                         l[k+2] = p[ip + 2];
  69                 }
  70         }
  71         delete [] orgin;
  72         return(cr);
  73 }
  74
  75 static unsigned char *color_resize(unsigned char * orgin, int ox, int oy, int dx, int dy)
  76 {
  77         unsigned char *cr, *p, *q;
  78         int i, j, k, l, xa, xb, ya, yb;
  79         int sq, r, g, b;
  80         cr = new unsigned char[dx * dy * 3];
  81         if (cr == NULL)
  82         {
  83                 eDebug("[Picload] Error malloc");
  84                 return(orgin);
  85         }
  86         p = cr;
  87
  88         for (j = 0; j < dy; j++)
  89         {
  90                 for (i = 0; i < dx; i++, p += 3)
  91                 {
  92                         xa = i * ox / dx;
  93                         ya = j * oy / dy;
  94                         xb = (i + 1) * ox / dx;
  95                         if (xb >= ox)
  96                                 xb = ox - 1;
  97                         yb = (j + 1) * oy / dy;
  98                         if (yb >= oy)
  99                                 yb = oy - 1;
 100                         for (l = ya, r = 0, g = 0, b = 0, sq = 0; l <= yb; l++)
 101                         {
 102                                 q = orgin + ((l * ox + xa) * 3);
 103                                 for (k = xa; k <= xb; k++, q += 3, sq++)
 104                                 {
 105                                         r += q[0]; g += q[1]; b += q[2];
 106                                 }
 107                         }
 108                         p[0] = r / sq; p[1] = g / sq; p[2] = b / sq;
 109                 }
 110         }
 111         delete [] orgin;
 112         return(cr);
 113 }
 114
 115 //---------------------------------------------------------------------------------------------
 116
 117 #define BMP_TORASTER_OFFSET 10
 118 #define BMP_SIZE_OFFSET 18
 119 #define BMP_BPP_OFFSET 28
 120 #define BMP_RLE_OFFSET 30
 121 #define BMP_COLOR_OFFSET 54
 122
 123 #define fill4B(a) ((4 - ((a) % 4 )) & 0x03)
 124
 125 struct color {
 126         unsigned char red;
 127         unsigned char green;
 128         unsigned char blue;
 129 };
 130
 131 static void fetch_pallete(int fd, struct color pallete[], int count)
 132 {
 133         unsigned char buff[4];
 134         lseek(fd, BMP_COLOR_OFFSET, SEEK_SET);
 135         for (int i = 0; i < count; i++)
 136         {
 137                 read(fd, buff, 4);
 138                 pallete[i].red = buff[2];
 139                 pallete[i].green = buff[1];
 140                 pallete[i].blue = buff[0];
 141         }
 142 }
 143
 144 static unsigned char *bmp_load(const char *file,  int *x, int *y)
 145 {
 146         unsigned char buff[4];
 147         struct color pallete[256];
 148
 149         int fd = open(file, O_RDONLY);
 150         if (fd == -1) return NULL;
 151         if (lseek(fd, BMP_SIZE_OFFSET, SEEK_SET) == -1) return NULL;
 152         read(fd, buff, 4);
 153         *x = buff[0] + (buff[1] << 8) + (buff[2] << 16) + (buff[3] << 24);
 154         read(fd, buff, 4);
 155         *y = buff[0] + (buff[1] << 8) + (buff[2] << 16) + (buff[3] << 24);
 156         if (lseek(fd, BMP_TORASTER_OFFSET, SEEK_SET) == -1) return NULL;
 157         read(fd, buff, 4);
 158         int raster = buff[0] + (buff[1] << 8) + (buff[2] << 16) + (buff[3] << 24);
 159         if (lseek(fd, BMP_BPP_OFFSET, SEEK_SET) == -1) return NULL;
 160         read(fd, buff, 2);
 161         int bpp = buff[0] + (buff[1] << 8);
 162
 163         unsigned char *pic_buffer = new unsigned char[(*x) * (*y) * 3];
 164         unsigned char *wr_buffer = pic_buffer + (*x) * ((*y) - 1) * 3;
 165
 166         switch (bpp)
 167         {
 168                 case 4:
 169                 {
 170                         int skip = fill4B((*x) / 2 + (*x) % 2);
 171                         fetch_pallete(fd, pallete, 16);
 172                         lseek(fd, raster, SEEK_SET);
 173                         unsigned char * tbuffer = new unsigned char[*x / 2 + 1];
 174                         if (tbuffer == NULL)
 175                                 return NULL;
 176                         for (int i = 0; i < *y; i++)
 177                         {
 178                                 read(fd, tbuffer, (*x) / 2 + *x % 2);
 179                                 int j;
 180                                 for (j = 0; j < (*x) / 2; j++)
 181                                 {
 182                                         unsigned char c1 = tbuffer[j] >> 4;
 183                                         unsigned char c2 = tbuffer[j] & 0x0f;
 184                                         *wr_buffer++ = pallete[c1].red;
 185                                         *wr_buffer++ = pallete[c1].green;
 186                                         *wr_buffer++ = pallete[c1].blue;
 187                                         *wr_buffer++ = pallete[c2].red;
 188                                         *wr_buffer++ = pallete[c2].green;
 189                                         *wr_buffer++ = pallete[c2].blue;
 190                                 }
 191                                 if ((*x) % 2)
 192                                 {
 193                                         unsigned char c1 = tbuffer[j] >> 4;
 194                                         *wr_buffer++ = pallete[c1].red;
 195                                         *wr_buffer++ = pallete[c1].green;
 196                                         *wr_buffer++ = pallete[c1].blue;
 197                                 }
 198                                 if (skip)
 199                                         read(fd, buff, skip);
 200                                 wr_buffer -= (*x) * 6;
 201                         }
 202                         break;
 203                 }
 204                 case 8:
 205                 {
 206                         int skip = fill4B(*x);
 207                         fetch_pallete(fd, pallete, 256);
 208                         lseek(fd, raster, SEEK_SET);
 209                         unsigned char * tbuffer = new unsigned char[*x];
 210                         if (tbuffer == NULL)
 211                                 return NULL;
 212                         for (int i = 0; i < *y; i++)
 213                         {
 214                                 read(fd, tbuffer, *x);
 215                                 for (int j = 0; j < *x; j++)
 216                                 {
 217                                         wr_buffer[j * 3] = pallete[tbuffer[j]].red;
 218                                         wr_buffer[j * 3 + 1] = pallete[tbuffer[j]].green;
 219                                         wr_buffer[j * 3 + 2] = pallete[tbuffer[j]].blue;
 220                                 }
 221                                 if (skip)
 222                                         read(fd, buff, skip);
 223                                 wr_buffer -= (*x) * 3;
 224                         }
 225                         break;
 226                 }
 227                 case 24:
 228                 {
 229                         int skip = fill4B((*x) * 3);
 230                         lseek(fd, raster, SEEK_SET);
 231                         for (int i = 0; i < (*y); i++)
 232                         {
 233                                 read(fd, wr_buffer, (*x) * 3);
 234                                 for (int j = 0; j < (*x) * 3 ; j = j + 3)
 235                                 {
 236                                         unsigned char c = wr_buffer[j];
 237                                         wr_buffer[j] = wr_buffer[j + 2];
 238                                         wr_buffer[j + 2] = c;
 239                                 }
 240                                 if (skip)
 241                                         read(fd, buff, skip);
 242                                 wr_buffer -= (*x) * 3;
 243                         }
 244                         break;
 245                 }
 246                 default:
 247                         return NULL;
 248         }
 249
 250         close(fd);
 251         return(pic_buffer);
 252 }
 253
 254 //---------------------------------------------------------------------
 255
 256 static unsigned char *png_load(const char *file, int *ox, int *oy)
 257 {
 258         static const png_color_16 my_background = {0, 0, 0, 0, 0};
 259
 260         png_uint_32 width, height;
 261         unsigned int i;
 262         int bit_depth, color_type, interlace_type;
 263         png_byte *fbptr;
 264         FILE *fh;
 265
 266         if (!(fh = fopen(file, "rb")))
 267                 return NULL;
 268
 269         png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
 270         if (png_ptr == NULL)
 271                 return NULL;
 272         png_infop 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 NULL;
 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         int number_passes = png_set_interlace_handling(png_ptr);
 300         png_read_update_info(png_ptr, info_ptr);
 301
 302         if (width * 3 != png_get_rowbytes(png_ptr, info_ptr))
 303         {
 304                 eDebug("[Picload] Error processing");
 305                 png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
 306                 fclose(fh);
 307                 return NULL;
 308         }
 309
 310         unsigned char *pic_buffer = new unsigned char[height * width * 3];
 311         *ox=width;
 312         *oy=height;
 313
 314         for(int pass = 0; pass < number_passes; pass++)
 315         {
 316                 fbptr = (png_byte *)pic_buffer;
 317                 for (i = 0; i < height; i++, fbptr += width * 3)
 318                         png_read_row(png_ptr, fbptr, NULL);
 319         }
 320         png_read_end(png_ptr, info_ptr);
 321         png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
 322         fclose(fh);
 323         return(pic_buffer);
 324 }
 325
 326 //-------------------------------------------------------------------
 327
 328 struct r_jpeg_error_mgr
 329 {
 330         struct jpeg_error_mgr pub;
 331         jmp_buf envbuffer;
 332 };
 333
 334 void jpeg_cb_error_exit(j_common_ptr cinfo)
 335 {
 336         struct r_jpeg_error_mgr *mptr;
 337         mptr = (struct r_jpeg_error_mgr *) cinfo->err;
 338         (*cinfo->err->output_message) (cinfo);
 339         longjmp(mptr->envbuffer, 1);
 340 }
 341
 342 static unsigned char *jpeg_load(const char *file, int *ox, int *oy)
 343 {
 344         struct jpeg_decompress_struct cinfo;
 345         struct jpeg_decompress_struct *ciptr = &cinfo;
 346         struct r_jpeg_error_mgr emgr;
 347         FILE *fh;
 348         unsigned char *pic_buffer=NULL;
 349
 350         if (!(fh = fopen(file, "rb")))
 351                 return NULL;
 352
 353         ciptr->err = jpeg_std_error(&emgr.pub);
 354         emgr.pub.error_exit = jpeg_cb_error_exit;
 355         if (setjmp(emgr.envbuffer) == 1)
 356         {
 357                 jpeg_destroy_decompress(ciptr);
 358                 fclose(fh);
 359                 return NULL;
 360         }
 361
 362         jpeg_create_decompress(ciptr);
 363         jpeg_stdio_src(ciptr, fh);
 364         jpeg_read_header(ciptr, TRUE);
 365         ciptr->out_color_space = JCS_RGB;
 366         ciptr->scale_denom = 1;
 367
 368         jpeg_start_decompress(ciptr);
 369
 370         *ox=ciptr->output_width;
 371         *oy=ciptr->output_height;
 372
 373         if(ciptr->output_components == 3)
 374         {
 375                 JSAMPLE *lb = (JSAMPLE *)(*ciptr->mem->alloc_small)((j_common_ptr) ciptr, JPOOL_PERMANENT, ciptr->output_width * ciptr->output_components);
 376                 pic_buffer = new unsigned char[ciptr->output_height * ciptr->output_width * ciptr->output_components];
 377                 unsigned char *bp = pic_buffer;
 378
 379                 while (ciptr->output_scanline < ciptr->output_height)
 380                 {
 381                         jpeg_read_scanlines(ciptr, &lb, 1);
 382                         memcpy(bp, lb, ciptr->output_width * ciptr->output_components);
 383                         bp += ciptr->output_width * ciptr->output_components;
 384                 }
 385         }
 386         jpeg_finish_decompress(ciptr);
 387         jpeg_destroy_decompress(ciptr);
 388         fclose(fh);
 389         return(pic_buffer);
 390 }
 391
 392
 393 static int jpeg_save(const char * filename, int ox, int oy, unsigned char *pic_buffer)
 394 {
 395         struct jpeg_compress_struct cinfo;
 396         struct jpeg_error_mgr jerr;
 397         FILE * outfile;
 398         JSAMPROW row_pointer[1];
 399         int row_stride;
 400
 401         cinfo.err = jpeg_std_error(&jerr);
 402         jpeg_create_compress(&cinfo);
 403
 404         if ((outfile = fopen(filename, "wb")) == NULL)
 405         {
 406                 eDebug("[Picload] jpeg can't open %s", filename);
 407                 return 1;
 408         }
 409         eDebug("[Picload] save Thumbnail... %s",filename);
 410
 411         jpeg_stdio_dest(&cinfo, outfile);
 412
 413         cinfo.image_width = ox;
 414         cinfo.image_height = oy;
 415         cinfo.input_components = 3;
 416         cinfo.in_color_space = JCS_RGB;
 417         jpeg_set_defaults(&cinfo);
 418         jpeg_set_quality(&cinfo, 70, TRUE );
 419         jpeg_start_compress(&cinfo, TRUE);
 420         row_stride = ox * 3;
 421         while (cinfo.next_scanline < cinfo.image_height)
 422         {
 423                 row_pointer[0] = & pic_buffer[cinfo.next_scanline * row_stride];
 424                 (void) jpeg_write_scanlines(&cinfo, row_pointer, 1);
 425         }
 426         jpeg_finish_compress(&cinfo);
 427         fclose(outfile);
 428         jpeg_destroy_compress(&cinfo);
 429         return 0;
 430 }
 431
 432 //-------------------------------------------------------------------
 433
 434 inline void m_rend_gif_decodecolormap(unsigned char *cmb, unsigned char *rgbb, ColorMapObject *cm, int s, int l)
 435 {
 436         GifColorType *cmentry;
 437         int i;
 438         for (i = 0; i < l; i++)
 439         {
 440                 cmentry = &cm->Colors[cmb[i]];
 441                 *(rgbb++) = cmentry->Red;
 442                 *(rgbb++) = cmentry->Green;
 443                 *(rgbb++) = cmentry->Blue;
 444         }
 445 }
 446
 447 static unsigned char *gif_load(const char *file, int *ox, int *oy)
 448 {
 449         unsigned char *pic_buffer = NULL;
 450         int px, py, i, j, ibxs;
 451         unsigned char *fbptr;
 452         unsigned char *lb=NULL;
 453         unsigned char *slb=NULL;
 454         GifFileType *gft;
 455         GifRecordType rt;
 456         GifByteType *extension;
 457         ColorMapObject *cmap;
 458         int cmaps;
 459         int extcode;
 460
 461         gft = DGifOpenFileName(file);
 462         if (gft == NULL)
 463                 return NULL;
 464         do
 465         {
 466                 if (DGifGetRecordType(gft, &rt) == GIF_ERROR)
 467                         goto ERROR_R;
 468                 switch(rt)
 469                 {
 470                         case IMAGE_DESC_RECORD_TYPE:
 471                                 if (DGifGetImageDesc(gft) == GIF_ERROR)
 472                                         goto ERROR_R;
 473                                 *ox = px = gft->Image.Width;
 474                                 *oy = py = gft->Image.Height;
 475                                 pic_buffer = new unsigned char[px * py * 3];
 476                                 lb = (unsigned char *)malloc(px * 3);
 477                                 slb = (unsigned char *) malloc(px);
 478
 479                                 if (lb != NULL && slb != NULL)
 480                                 {
 481                                         cmap = (gft->Image.ColorMap ? gft->Image.ColorMap : gft->SColorMap);
 482                                         cmaps = cmap->ColorCount;
 483
 484                                         ibxs = ibxs * 3;
 485                                         fbptr = pic_buffer;
 486                                         if (!(gft->Image.Interlace))
 487                                         {
 488                                                 for (i = 0; i < py; i++, fbptr += px * 3)
 489                                                 {
 490                                                         if (DGifGetLine(gft, slb, px) == GIF_ERROR)
 491                                                                 goto ERROR_R;
 492                                                         m_rend_gif_decodecolormap(slb, lb, cmap, cmaps, px);
 493                                                         memcpy(fbptr, lb, px * 3);
 494                                                 }
 495                                         }
 496                                         else
 497                                         {
 498                                                 for (j = 0; j < 4; j++)
 499                                                 {
 500                                                         fbptr = pic_buffer;
 501                                                         for (i = 0; i < py; i++, fbptr += px * 3)
 502                                                         {
 503                                                                 if (DGifGetLine(gft, slb, px) == GIF_ERROR)
 504                                                                         goto ERROR_R;
 505                                                                 m_rend_gif_decodecolormap(slb, lb, cmap, cmaps, px);
 506                                                                 memcpy(fbptr, lb, px * 3);
 507                                                         }
 508                                                 }
 509                                         }
 510                                 }
 511                                 if (lb)
 512                                 {
 513                                         free(lb);
 514                                         lb=NULL;
 515                                 }
 516                                 if (slb)
 517                                 {
 518                                         free(slb);
 519                                         slb=NULL;
 520                                 }
 521                                 break;
 522                         case EXTENSION_RECORD_TYPE:
 523                                 if (DGifGetExtension(gft, &extcode, &extension) == GIF_ERROR)
 524                                         goto ERROR_R;
 525                                 while (extension != NULL)
 526                                         if (DGifGetExtensionNext(gft, &extension) == GIF_ERROR)
 527                                                 goto ERROR_R;
 528                                 break;
 529                         default:
 530                                 break;
 531                 }
 532         }
 533         while (rt != TERMINATE_RECORD_TYPE);
 534
 535         DGifCloseFile(gft);
 536         return(pic_buffer);
 537 ERROR_R:
 538         eDebug("[Picload] <Error gif>");
 539         if (lb)         free(lb);
 540         if (slb)        free(slb);
 541         DGifCloseFile(gft);
 542         return NULL;
 543 }
 544
 545 //---------------------------------------------------------------------------------------------
 546
 547 ePicLoad::ePicLoad()
 548         :msg_thread(this,1), msg_main(eApp,1)
 549 {
 550         CONNECT(msg_thread.recv_msg, ePicLoad::gotMessage);
 551         CONNECT(msg_main.recv_msg, ePicLoad::gotMessage);
 552
 553         threadrunning = false;
 554         m_filepara = NULL;
 555         m_conf.max_x = 0;
 556         m_conf.max_y = 0;
 557         m_conf.aspect_ratio = 1.066400; //4:3
 558         m_conf.usecache = false;
 559         m_conf.resizetype = 1;
 560         memset(m_conf.background,0x00,sizeof(m_conf.background));
 561         m_conf.thumbnailsize = 180;
 562 }
 563
 564 void ePicLoad::waitFinished()
 565 {
 566         msg_thread.send(Message(Message::quit));
 567         kill();
 568 }
 569
 570 ePicLoad::~ePicLoad()
 571 {
 572         if (threadrunning)
 573                 waitFinished();
 574         if(m_filepara != NULL)
 575                 delete m_filepara;
 576 }
 577
 578 void ePicLoad::thread_finished()
 579 {
 580         threadrunning=false;
 581 }
 582
 583 void ePicLoad::thread()
 584 {
 585         hasStarted();
 586         threadrunning=true;
 587         nice(4);
 588         runLoop();
 589 }
 590
 591 void ePicLoad::decodePic()
 592 {
 593         eDebug("[Picload] decode picture... %s",m_filepara->file);
 594
 595         switch(m_filepara->id)
 596         {
 597                 case F_PNG:     m_filepara->pic_buffer = png_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy);  break;
 598                 case F_JPEG:    m_filepara->pic_buffer = jpeg_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy); break;
 599                 case F_BMP:     m_filepara->pic_buffer = bmp_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy);  break;
 600                 case F_GIF:     m_filepara->pic_buffer = gif_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy);  break;
 601         }
 602
 603         if(m_filepara->pic_buffer != NULL)
 604         {
 605                 resizePic();
 606         }
 607 }
 608
 609 void ePicLoad::decodeThumb()
 610 {
 611         eDebug("[Picload] get Thumbnail... %s",m_filepara->file);
 612
 613         bool exif_thumbnail = false;
 614         bool cachefile_found = false;
 615         std::string cachefile = "";
 616         std::string cachedir = "/.Thumbnails";
 617
 618         if(m_filepara->id == F_JPEG)
 619         {
 620                 Cexif *exif = new Cexif;
 621                 if(exif->DecodeExif(m_filepara->file, 1))
 622                 {
 623                         if(exif->m_exifinfo->IsExif)
 624                         {
 625                                 if(exif->m_exifinfo->Thumnailstate==2)
 626                                 {
 627                                         m_filepara->file = strdup(THUMBNAILTMPFILE);
 628                                         exif_thumbnail = true;
 629                                         eDebug("[Picload] Exif Thumbnail found");
 630                                 }
 631                                 m_filepara->addExifInfo(exif->m_exifinfo->CameraMake);
 632                                 m_filepara->addExifInfo(exif->m_exifinfo->CameraModel);
 633                                 m_filepara->addExifInfo(exif->m_exifinfo->DateTime);
 634                                 char buf[20];
 635                                 snprintf(buf, 20, "%d x %d", exif->m_exifinfo->Width, exif->m_exifinfo->Height);
 636                                 m_filepara->addExifInfo(buf);
 637                         }
 638                         exif->ClearExif();
 639                 }
 640                 delete exif;
 641         }
 642
 643         if((! exif_thumbnail) && m_conf.usecache)
 644         {
 645                 if(FILE *f=fopen(m_filepara->file, "rb"))
 646                 {
 647                         int c;
 648                         int count = 1024*100;
 649                         unsigned long crc32 = 0;
 650                         char crcstr[9];*crcstr=0;
 651
 652                         while ((c=getc(f))!=EOF)
 653                         {
 654                                 crc32 = crc32_table[((crc32) ^ (c)) & 0xFF] ^ ((crc32) >> 8);
 655                                 if(--count < 0) break;
 656                         }
 657
 658                         fclose(f);
 659                         crc32 = ~crc32;
 660                         sprintf(crcstr, "%08lX", crc32);
 661
 662                         cachedir = m_filepara->file;
 663                         unsigned int pos = cachedir.find_last_of("/");
 664                         if (pos != std::string::npos)
 665                                 cachedir = cachedir.substr(0, pos) + "/.Thumbnails";
 666
 667                         cachefile = cachedir + std::string("/pc_") + crcstr;
 668                         if(!access(cachefile.c_str(), R_OK))
 669                         {
 670                                 cachefile_found = true;
 671                                 m_filepara->file = strdup(cachefile.c_str());
 672                                 m_filepara->id = F_JPEG;
 673                                 eDebug("[Picload] Cache File found");
 674                         }
 675                 }
 676         }
 677
 678         switch(m_filepara->id)
 679         {
 680                 case F_PNG:     m_filepara->pic_buffer = png_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy);  break;
 681                 case F_JPEG:    m_filepara->pic_buffer = jpeg_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy); break;
 682                 case F_BMP:     m_filepara->pic_buffer = bmp_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy);  break;
 683                 case F_GIF:     m_filepara->pic_buffer = gif_load(m_filepara->file, &m_filepara->ox, &m_filepara->oy);  break;
 684         }
 685
 686         if(exif_thumbnail)
 687                 ::unlink(THUMBNAILTMPFILE);
 688
 689         if(m_filepara->pic_buffer != NULL)
 690         {
 691                 //save cachefile
 692                 if(m_conf.usecache && (! exif_thumbnail) && (! cachefile_found))
 693                 {
 694                         if(access(cachedir.c_str(), R_OK))
 695                                 ::mkdir(cachedir.c_str(), 0755);
 696
 697                         //resize for Thumbnail
 698                         int imx, imy;
 699                         if (m_filepara->ox <= m_filepara->oy)
 700                         {
 701                                 imy = m_conf.thumbnailsize;
 702                                 imx = (int)( (m_conf.thumbnailsize * ((double)m_filepara->ox)) / ((double)m_filepara->oy) );
 703                         }
 704                         else
 705                         {
 706                                 imx = m_conf.thumbnailsize;
 707                                 imy = (int)( (m_conf.thumbnailsize * ((double)m_filepara->oy)) / ((double)m_filepara->ox) );
 708                         }
 709
 710                         m_filepara->pic_buffer = color_resize(m_filepara->pic_buffer, m_filepara->ox, m_filepara->oy, imx, imy);
 711                         m_filepara->ox = imx;
 712                         m_filepara->oy = imy;
 713
 714                         if(jpeg_save(cachefile.c_str(), m_filepara->ox, m_filepara->oy, m_filepara->pic_buffer))
 715                                 eDebug("[Picload] error saving cachefile");
 716                 }
 717
 718                 resizePic();
 719         }
 720 }
 721
 722 void ePicLoad::resizePic()
 723 {
 724         int imx, imy;
 725
 726         if((m_conf.aspect_ratio * m_filepara->oy * m_filepara->max_x / m_filepara->ox) <= m_filepara->max_y)
 727         {
 728                 imx = m_filepara->max_x;
 729                 imy = (int)(m_conf.aspect_ratio * m_filepara->oy * m_filepara->max_x / m_filepara->ox);
 730         }
 731         else
 732         {
 733                 imx = (int)((1.0/m_conf.aspect_ratio) * m_filepara->ox * m_filepara->max_y / m_filepara->oy);
 734                 imy = m_filepara->max_y;
 735         }
 736
 737         if(m_conf.resizetype)
 738                 m_filepara->pic_buffer = color_resize(m_filepara->pic_buffer, m_filepara->ox, m_filepara->oy, imx, imy);
 739         else
 740                 m_filepara->pic_buffer = simple_resize(m_filepara->pic_buffer, m_filepara->ox, m_filepara->oy, imx, imy);
 741
 742         m_filepara->ox = imx;
 743         m_filepara->oy = imy;
 744 }
 745
 746 void ePicLoad::gotMessage(const Message &msg)
 747 {
 748         switch (msg.type)
 749         {
 750                 case Message::decode_Pic:
 751                         decodePic();
 752                         msg_main.send(Message(Message::decode_finished));
 753                         break;
 754                 case Message::decode_Thumb:
 755                         decodeThumb();
 756                         msg_main.send(Message(Message::decode_finished));
 757                         break;
 758                 case Message::quit: // called from decode thread
 759                         eDebug("[Picload] decode thread ... got quit msg");
 760                         quit(0);
 761                         break;
 762                 case Message::decode_finished: // called from main thread
 763                         //eDebug("[Picload] decode finished... %s", m_filepara->file);
 764                         if(m_filepara->callback)
 765                         {
 766                                 PictureData(m_filepara->picinfo.c_str());
 767                         }
 768                         else
 769                         {
 770                                 if(m_filepara != NULL)
 771                                 {
 772                                         delete m_filepara;
 773                                         m_filepara = NULL;
 774                                 }
 775                         }
 776                         break;
 777                 default:
 778                         eDebug("unhandled thread message");
 779         }
 780 }
 781
 782 int ePicLoad::startThread(int what, const char *file, int x, int y, bool async)
 783 {
 784         if(async && threadrunning && m_filepara != NULL)
 785         {
 786                 eDebug("[Picload] thread running");
 787                 m_filepara->callback = false;
 788                 return 1;
 789         }
 790
 791         if(m_filepara != NULL)
 792         {
 793                 delete m_filepara;
 794                 m_filepara = NULL;
 795         }
 796
 797         int file_id = -1;
 798         unsigned char id[10];
 799         int fd = ::open(file, O_RDONLY);
 800         if (fd == -1) return 1;
 801         ::read(fd, id, 10);
 802         ::close(fd);
 803
 804         if(id[1] == 'P' && id[2] == 'N' && id[3] == 'G')                        file_id = F_PNG;
 805         else if(id[6] == 'J' && id[7] == 'F' && id[8] == 'I' && id[9] == 'F')   file_id = F_JPEG;
 806         else if(id[0] == 0xff && id[1] == 0xd8 && id[2] == 0xff)                file_id = F_JPEG;
 807         else if(id[0] == 'B' && id[1] == 'M' )                                  file_id = F_BMP;
 808         else if(id[0] == 'G' && id[1] == 'I' && id[2] == 'F')                   file_id = F_GIF;
 809
 810         if(file_id < 0)
 811         {
 812                 eDebug("[Picload] <format not supportet>");
 813                 return 1;
 814         }
 815
 816         m_filepara = new Cfilepara(file, file_id, getSize(file));
 817         x > 0 ? m_filepara->max_x = x : m_filepara->max_x = m_conf.max_x;
 818         y > 0 ? m_filepara->max_y = y : m_filepara->max_y = m_conf.max_y;
 819
 820         if(m_filepara->max_x <= 0 || m_filepara->max_y <= 0)
 821         {
 822                 delete m_filepara;
 823                 m_filepara = NULL;
 824                 eDebug("[Picload] <error in Para>");
 825                 return 1;
 826         }
 827
 828         if (async) {
 829                 if(what==1)
 830                         msg_thread.send(Message(Message::decode_Pic));
 831                 else
 832                         msg_thread.send(Message(Message::decode_Thumb));
 833                 run();
 834         }
 835         else if (what == 1)
 836                 decodePic();
 837         else
 838                 decodeThumb();
 839         return 0;
 840 }
 841
 842 RESULT ePicLoad::startDecode(const char *file, int x, int y, bool async)
 843 {
 844         return startThread(1, file, x, y, async);
 845 }
 846
 847 RESULT ePicLoad::getThumbnail(const char *file, int x, int y, bool async)
 848 {
 849         return startThread(0, file, x, y, async);
 850 }
 851
 852 PyObject *ePicLoad::getInfo(const char *filename)
 853 {
 854         ePyObject list;
 855
 856         Cexif *exif = new Cexif;
 857         if(exif->DecodeExif(filename))
 858         {
 859                 if(exif->m_exifinfo->IsExif)
 860                 {
 861                         char tmp[256];
 862                         int pos=0;
 863                         list = PyList_New(23);
 864                         PyList_SET_ITEM(list, pos++,  PyString_FromString(filename));
 865                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->Version));
 866                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->CameraMake));
 867                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->CameraModel));
 868                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->DateTime));
 869                         PyList_SET_ITEM(list, pos++,  PyString_FromFormat("%d x %d", exif->m_exifinfo->Width, exif->m_exifinfo->Height));
 870                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->FlashUsed));
 871                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->Orientation));
 872                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->Comments));
 873                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->MeteringMode));
 874                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->ExposureProgram));
 875                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->LightSource));
 876                         PyList_SET_ITEM(list, pos++,  PyString_FromFormat("%d", exif->m_exifinfo->CompressionLevel));
 877                         PyList_SET_ITEM(list, pos++,  PyString_FromFormat("%d", exif->m_exifinfo->ISOequivalent));
 878                         sprintf(tmp, "%.2f", exif->m_exifinfo->Xresolution);
 879                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 880                         sprintf(tmp, "%.2f", exif->m_exifinfo->Yresolution);
 881                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 882                         PyList_SET_ITEM(list, pos++,  PyString_FromString(exif->m_exifinfo->ResolutionUnit));
 883                         sprintf(tmp, "%.2f", exif->m_exifinfo->Brightness);
 884                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 885                         sprintf(tmp, "%.5f sec.", exif->m_exifinfo->ExposureTime);
 886                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 887                         sprintf(tmp, "%.5f", exif->m_exifinfo->ExposureBias);
 888                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 889                         sprintf(tmp, "%.5f", exif->m_exifinfo->Distance);
 890                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 891                         sprintf(tmp, "%.5f", exif->m_exifinfo->CCDWidth);
 892                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 893                         sprintf(tmp, "%.2f", exif->m_exifinfo->ApertureFNumber);
 894                         PyList_SET_ITEM(list, pos++,  PyString_FromString(tmp));
 895                 }
 896                 else
 897                 {
 898                         list = PyList_New(2);
 899                         PyList_SET_ITEM(list, 0, PyString_FromString(filename));
 900                         PyList_SET_ITEM(list, 1, PyString_FromString(exif->m_szLastError));
 901                 }
 902                 exif->ClearExif();
 903         }
 904         else
 905         {
 906                 list = PyList_New(2);
 907                 PyList_SET_ITEM(list, 0, PyString_FromString(filename));
 908                 PyList_SET_ITEM(list, 1, PyString_FromString(exif->m_szLastError));
 909         }
 910         delete exif;
 911
 912         return list ? (PyObject*)list : (PyObject*)PyList_New(0);
 913 }
 914
 915 int ePicLoad::getData(ePtr<gPixmap> &result)
 916 {
 917         result = 0;
 918         if(m_filepara->pic_buffer == NULL) return 0;
 919
 920         m_filepara->pic_buffer = conv24to32(m_filepara->pic_buffer, m_filepara->ox * m_filepara->oy);
 921
 922         result=new gPixmap(eSize(m_filepara->max_x, m_filepara->max_y), 32);
 923         gSurface *surface = result->surface;
 924         int a=0, b=0;
 925         int nc=0, oc=0;
 926         int o_y=0, u_y=0, v_x=0, h_x=0;
 927
 928         unsigned char *tmp_buffer=((unsigned char *)(surface->data));
 929
 930         if(m_filepara->oy < m_filepara->max_y)
 931         {
 932                 o_y = (m_filepara->max_y - m_filepara->oy) / 2;
 933                 u_y = m_filepara->max_y - m_filepara->oy - o_y;
 934         }
 935         if(m_filepara->ox < m_filepara->max_x)
 936         {
 937                 v_x = (m_filepara->max_x - m_filepara->ox) / 2;
 938                 h_x = m_filepara->max_x - m_filepara->ox - v_x;
 939         }
 940
 941         if(m_filepara->oy < m_filepara->max_y)
 942         {
 943                 for(a=0; a<(o_y*m_filepara->ox); a++, nc+=4)
 944                 {
 945                         tmp_buffer=((unsigned char *)(surface->data)) + nc;
 946                         memcpy(tmp_buffer, m_conf.background, sizeof(m_conf.background));
 947                 }
 948         }
 949
 950         for(a=0; a<m_filepara->oy; a++)
 951         {
 952                 if(m_filepara->ox < m_filepara->max_x)
 953                 {
 954                         for(b=0; b<v_x; b++, nc+=4)
 955                         {
 956                                 tmp_buffer=((unsigned char *)(surface->data)) + nc;
 957                                 memcpy(tmp_buffer, m_conf.background, sizeof(m_conf.background));
 958                         }
 959                 }
 960
 961                 for(b=0; b<(m_filepara->ox*4); b+=4, nc+=4)
 962                 {
 963                         tmp_buffer=((unsigned char *)(surface->data)) + nc;
 964                         tmp_buffer[2] = m_filepara->pic_buffer[oc++];
 965                         tmp_buffer[1] = m_filepara->pic_buffer[oc++];
 966                         tmp_buffer[0] = m_filepara->pic_buffer[oc++];
 967                         tmp_buffer[3] = m_filepara->pic_buffer[oc++];
 968                 }
 969
 970                 if(m_filepara->ox < m_filepara->max_x)
 971                 {
 972                         for(b=0; b<h_x; b++, nc+=4)
 973                         {
 974                                 tmp_buffer=((unsigned char *)(surface->data)) + nc;
 975                                 memcpy(tmp_buffer, m_conf.background, sizeof(m_conf.background));
 976                         }
 977                 }
 978         }
 979
 980         if(m_filepara->oy < m_filepara->max_y)
 981         {
 982                 for(a=0; a<(u_y*m_filepara->ox); a++, nc+=4)
 983                 {
 984                         tmp_buffer=((unsigned char *)(surface->data)) + nc;
 985                         memcpy(tmp_buffer, m_conf.background, sizeof(m_conf.background));
 986                 }
 987         }
 988
 989         surface->clut.data=0;
 990         surface->clut.colors=0;
 991         surface->clut.start=0;
 992
 993         delete m_filepara;
 994         m_filepara = NULL;
 995
 996         return 0;
 997 }
 998
 999 RESULT ePicLoad::setPara(PyObject *val)
1000 {
1001         if (!PySequence_Check(val))
1002                 return 0;
1003         if (PySequence_Size(val) < 7)
1004                 return 0;
1005         else {
1006                 ePyObject fast = PySequence_Fast(val, "");
1007                 m_conf.max_x            = PyInt_AsLong( PySequence_Fast_GET_ITEM(fast, 0));
1008                 m_conf.max_y            = PyInt_AsLong( PySequence_Fast_GET_ITEM(fast, 1));
1009                 m_conf.aspect_ratio     = (double)PyInt_AsLong( PySequence_Fast_GET_ITEM(fast, 2)) / PyInt_AsLong(PySequence_Fast_GET_ITEM(fast, 3));
1010                 m_conf.usecache         = PyInt_AsLong( PySequence_Fast_GET_ITEM(fast, 4));
1011                 m_conf.resizetype       = PyInt_AsLong( PySequence_Fast_GET_ITEM(fast, 5));
1012                 const char *bg_str      = PyString_AsString( PySequence_Fast_GET_ITEM(fast, 6));
1013
1014                 if(bg_str[0] == '#' && strlen(bg_str)==9)
1015                 {
1016                         int bg = strtoul(bg_str+1, NULL, 16);
1017                         m_conf.background[0] = bg&0xFF;         //BB
1018                         m_conf.background[1] = (bg>>8)&0xFF;    //GG
1019                         m_conf.background[2] = (bg>>16)&0xFF;   //RR
1020                         m_conf.background[3] = bg>>24;          //AA
1021                 }
1022                 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]);
1023         }
1024         return 1;
1025 }
1026
1027 //------------------------------------------------------------------------------------
1028
1029 //for old plugins
1030 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)
1031 {
1032         long asp1, asp2;
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         switch(aspect)
1038         {
1039                 case 1:         asp1 = 16*576, asp2 = 9*720; break; //16:9
1040                 case 2:         asp1 = 16*576, asp2 = 10*720; break; //16:10
1041                 case 3:         asp1 = 5*576, asp2 = 4*720; break; //5:4
1042                 default:        asp1 = 4*576, asp2 = 3*720; break; //4:3
1043         }
1044
1045         ePyObject tuple = PyTuple_New(7);
1046         PyTuple_SET_ITEM(tuple, 0,  PyLong_FromLong(x));
1047         PyTuple_SET_ITEM(tuple, 1,  PyLong_FromLong(y));
1048         PyTuple_SET_ITEM(tuple, 2,  PyLong_FromLong(asp1));
1049         PyTuple_SET_ITEM(tuple, 3,  PyLong_FromLong(asp2));
1050         PyTuple_SET_ITEM(tuple, 4,  PyLong_FromLong(0));
1051         PyTuple_SET_ITEM(tuple, 5,  PyLong_FromLong(resize_mode));
1052         if(background)
1053                 PyTuple_SET_ITEM(tuple, 6,  PyString_FromString("#ff000000"));
1054         else
1055                 PyTuple_SET_ITEM(tuple, 6,  PyString_FromString("#00000000"));
1056
1057         mPL.setPara(tuple);
1058
1059         if(!mPL.startDecode(filename.c_str(), 0, 0, false))
1060                 mPL.getData(result);
1061
1062         return 0;
1063 }