15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* pngset.c - storage of image information into info struct 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Last changed in libpng 1.2.43 [February 25, 2010] 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright (c) 1998-2010 Glenn Randers-Pehrson 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This code is released under the libpng license. 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * For conditions of distribution and use, see the disclaimer 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * and license in png.h 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * The functions here are used during reads to store data from the file 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * into the info struct, and during writes to store application data 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * into the info struct for writing into the file. This abstracts the 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * info struct and allows us to change the structure in the future. 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define PNG_INTERNAL 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define PNG_NO_PEDANTIC_WARNINGS 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "png.h" 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_bKGD_SUPPORTED 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_bKGD(png_structp png_ptr, png_infop info_ptr, png_color_16p background) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "bKGD"); 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(&(info_ptr->background), background, png_sizeof(png_color_16)); 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_bKGD; 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_cHRM_SUPPORTED 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FLOATING_POINT_SUPPORTED 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_cHRM(png_structp png_ptr, png_infop info_ptr, 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) double white_x, double white_y, double red_x, double red_y, 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) double green_x, double green_y, double blue_x, double blue_y) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "cHRM"); 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->x_white = (float)white_x; 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->y_white = (float)white_y; 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->x_red = (float)red_x; 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->y_red = (float)red_y; 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->x_green = (float)green_x; 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->y_green = (float)green_y; 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->x_blue = (float)blue_x; 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->y_blue = (float)blue_y; 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FIXED_POINT_SUPPORTED 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_x_white = (png_fixed_point)(white_x*100000.+0.5); 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_y_white = (png_fixed_point)(white_y*100000.+0.5); 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_x_red = (png_fixed_point)( red_x*100000.+0.5); 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_y_red = (png_fixed_point)( red_y*100000.+0.5); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_x_green = (png_fixed_point)(green_x*100000.+0.5); 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_y_green = (png_fixed_point)(green_y*100000.+0.5); 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_x_blue = (png_fixed_point)( blue_x*100000.+0.5); 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_y_blue = (png_fixed_point)( blue_y*100000.+0.5); 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_cHRM; 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif /* PNG_FLOATING_POINT_SUPPORTED */ 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FIXED_POINT_SUPPORTED 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_cHRM_fixed(png_structp png_ptr, png_infop info_ptr, 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_fixed_point white_x, png_fixed_point white_y, png_fixed_point red_x, 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_fixed_point red_y, png_fixed_point green_x, png_fixed_point green_y, 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_fixed_point blue_x, png_fixed_point blue_y) 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "cHRM fixed"); 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_CHECK_cHRM_SUPPORTED 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_check_cHRM_fixed(png_ptr, 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y)) 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_x_white = white_x; 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_y_white = white_y; 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_x_red = red_x; 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_y_red = red_y; 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_x_green = green_x; 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_y_green = green_y; 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_x_blue = blue_x; 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_y_blue = blue_y; 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FLOATING_POINT_SUPPORTED 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->x_white = (float)(white_x/100000.); 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->y_white = (float)(white_y/100000.); 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->x_red = (float)( red_x/100000.); 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->y_red = (float)( red_y/100000.); 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->x_green = (float)(green_x/100000.); 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->y_green = (float)(green_y/100000.); 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->x_blue = (float)( blue_x/100000.); 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->y_blue = (float)( blue_y/100000.); 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_cHRM; 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif /* PNG_FIXED_POINT_SUPPORTED */ 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif /* PNG_cHRM_SUPPORTED */ 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_gAMA_SUPPORTED 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FLOATING_POINT_SUPPORTED 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_gAMA(png_structp png_ptr, png_infop info_ptr, double file_gamma) 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) double png_gamma; 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "gAMA"); 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Check for overflow */ 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (file_gamma > 21474.83) 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, "Limiting gamma to 21474.83"); 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_gamma=21474.83; 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_gamma = file_gamma; 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->gamma = (float)png_gamma; 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FIXED_POINT_SUPPORTED 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_gamma = (int)(png_gamma*100000.+.5); 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_gAMA; 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_gamma == 0.0) 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, "Setting gamma=0"); 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int_gamma) 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_fixed_point png_gamma; 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "gAMA"); 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (int_gamma > (png_fixed_point)PNG_UINT_31_MAX) 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, "Limiting gamma to 21474.83"); 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_gamma=PNG_UINT_31_MAX; 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (int_gamma < 0) 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, "Setting negative gamma to zero"); 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_gamma = 0; 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_gamma = int_gamma; 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FLOATING_POINT_SUPPORTED 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->gamma = (float)(png_gamma/100000.); 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FIXED_POINT_SUPPORTED 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->int_gamma = png_gamma; 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_gAMA; 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_gamma == 0) 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, "Setting gamma=0"); 1775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_hIST_SUPPORTED 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist) 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int i; 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "hIST"); 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (info_ptr->num_palette == 0 || info_ptr->num_palette 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) > PNG_MAX_PALETTE_LENGTH) 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Invalid palette size, hIST allocation skipped."); 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FREE_ME_SUPPORTED 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_free_data(png_ptr, info_ptr, PNG_FREE_HIST, 0); 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Changed from info->num_palette to PNG_MAX_PALETTE_LENGTH in 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * version 1.2.1 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->hist = (png_uint_16p)png_malloc_warn(png_ptr, 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_uint_32)(PNG_MAX_PALETTE_LENGTH * png_sizeof(png_uint_16))); 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr->hist == NULL) 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, "Insufficient memory for hIST chunk data."); 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (i = 0; i < info_ptr->num_palette; i++) 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->hist[i] = hist[i]; 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->hist = png_ptr->hist; 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_hIST; 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FREE_ME_SUPPORTED 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->free_me |= PNG_FREE_HIST; 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->flags |= PNG_FLAG_FREE_HIST; 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_IHDR(png_structp png_ptr, png_infop info_ptr, 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_uint_32 width, png_uint_32 height, int bit_depth, 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int color_type, int interlace_type, int compression_type, 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int filter_type) 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "IHDR"); 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 2365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->width = width; 2385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->height = height; 2395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->bit_depth = (png_byte)bit_depth; 2405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->color_type = (png_byte)color_type; 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->compression_type = (png_byte)compression_type; 2425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->filter_type = (png_byte)filter_type; 2435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->interlace_type = (png_byte)interlace_type; 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_check_IHDR (png_ptr, info_ptr->width, info_ptr->height, 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->bit_depth, info_ptr->color_type, info_ptr->interlace_type, 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->compression_type, info_ptr->filter_type); 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->channels = 1; 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR) 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->channels = 3; 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->channels = 1; 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA) 2565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->channels++; 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->pixel_depth = (png_byte)(info_ptr->channels * info_ptr->bit_depth); 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Check for potential overflow */ 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (width > (PNG_UINT_32_MAX 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) >> 3) /* 8-byte RGBA pixels */ 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) - 64 /* bigrowbuf hack */ 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) - 1 /* filter byte */ 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) - 7*8 /* rounding of width to multiple of 8 pixels */ 2655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) - 8) /* extra max_pixel_depth pad */ 2665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->rowbytes = (png_size_t)0; 2675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 2685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, width); 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_oFFs_SUPPORTED 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_oFFs(png_structp png_ptr, png_infop info_ptr, 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_int_32 offset_x, png_int_32 offset_y, int unit_type) 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "oFFs"); 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 2795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->x_offset = offset_x; 2825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->y_offset = offset_y; 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->offset_unit_type = (png_byte)unit_type; 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_oFFs; 2855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_pCAL_SUPPORTED 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_pCAL(png_structp png_ptr, png_infop info_ptr, 2915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams, 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_charp units, png_charpp params) 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_uint_32 length; 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int i; 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "pCAL"); 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 3005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) length = png_strlen(purpose) + 1; 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(3, "allocating purpose for info (%lu bytes)", 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (unsigned long)length); 3055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->pcal_purpose = (png_charp)png_malloc_warn(png_ptr, length); 3065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (info_ptr->pcal_purpose == NULL) 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 3085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, "Insufficient memory for pCAL purpose."); 3095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(info_ptr->pcal_purpose, purpose, (png_size_t)length); 3125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug(3, "storing X0, X1, type, and nparams in info"); 3145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->pcal_X0 = X0; 3155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->pcal_X1 = X1; 3165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->pcal_type = (png_byte)type; 3175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->pcal_nparams = (png_byte)nparams; 3185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) length = png_strlen(units) + 1; 3205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(3, "allocating units for info (%lu bytes)", 3215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (unsigned long)length); 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->pcal_units = (png_charp)png_malloc_warn(png_ptr, length); 3235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (info_ptr->pcal_units == NULL) 3245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 3255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, "Insufficient memory for pCAL units."); 3265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(info_ptr->pcal_units, units, (png_size_t)length); 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->pcal_params = (png_charpp)png_malloc_warn(png_ptr, 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_uint_32)((nparams + 1) * png_sizeof(png_charp))); 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (info_ptr->pcal_params == NULL) 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 3345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, "Insufficient memory for pCAL params."); 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memset(info_ptr->pcal_params, 0, (nparams + 1) * png_sizeof(png_charp)); 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (i = 0; i < nparams; i++) 3415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 3425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) length = png_strlen(params[i]) + 1; 3435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug2(3, "allocating parameter %d for info (%lu bytes)", i, 3445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (unsigned long)length); 3455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->pcal_params[i] = (png_charp)png_malloc_warn(png_ptr, length); 3465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (info_ptr->pcal_params[i] == NULL) 3475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 3485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, "Insufficient memory for pCAL parameter."); 3495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(info_ptr->pcal_params[i], params[i], (png_size_t)length); 3525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_pCAL; 3555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FREE_ME_SUPPORTED 3565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->free_me |= PNG_FREE_PCAL; 3575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 3605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(PNG_READ_sCAL_SUPPORTED) || defined(PNG_WRITE_sCAL_SUPPORTED) 3625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FLOATING_POINT_SUPPORTED 3635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 3645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_sCAL(png_structp png_ptr, png_infop info_ptr, 3655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int unit, double width, double height) 3665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 3675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "sCAL"); 3685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 3705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->scal_unit = (png_byte)unit; 3735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->scal_pixel_width = width; 3745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->scal_pixel_height = height; 3755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_sCAL; 3775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 3795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FIXED_POINT_SUPPORTED 3805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 3815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_sCAL_s(png_structp png_ptr, png_infop info_ptr, 3825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int unit, png_charp swidth, png_charp sheight) 3835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 3845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_uint_32 length; 3855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "sCAL"); 3875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 3895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->scal_unit = (png_byte)unit; 3925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) length = png_strlen(swidth) + 1; 3945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(3, "allocating unit for info (%u bytes)", 3955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (unsigned int)length); 3965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->scal_s_width = (png_charp)png_malloc_warn(png_ptr, length); 3975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (info_ptr->scal_s_width == NULL) 3985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 3995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, 4005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Memory allocation failed while processing sCAL."); 4015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(info_ptr->scal_s_width, swidth, (png_size_t)length); 4045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) length = png_strlen(sheight) + 1; 4065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(3, "allocating unit for info (%u bytes)", 4075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (unsigned int)length); 4085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->scal_s_height = (png_charp)png_malloc_warn(png_ptr, length); 4095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (info_ptr->scal_s_height == NULL) 4105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 4115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_free (png_ptr, info_ptr->scal_s_width); 4125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->scal_s_width = NULL; 4135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, 4145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Memory allocation failed while processing sCAL."); 4155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(info_ptr->scal_s_height, sheight, (png_size_t)length); 4185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_sCAL; 4195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FREE_ME_SUPPORTED 4205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->free_me |= PNG_FREE_SCAL; 4215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 4225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 4245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 4255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 4265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_pHYs_SUPPORTED 4285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 4295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_pHYs(png_structp png_ptr, png_infop info_ptr, 4305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_uint_32 res_x, png_uint_32 res_y, int unit_type) 4315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 4325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "pHYs"); 4335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 4355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->x_pixels_per_unit = res_x; 4385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->y_pixels_per_unit = res_y; 4395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->phys_unit_type = (png_byte)unit_type; 4405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_pHYs; 4415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 4435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 4455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_PLTE(png_structp png_ptr, png_infop info_ptr, 4465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_colorp palette, int num_palette) 4475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 4485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "PLTE"); 4505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 4525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (num_palette < 0 || num_palette > PNG_MAX_PALETTE_LENGTH) 4555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 4565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) 4575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_error(png_ptr, "Invalid palette length"); 4585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 4595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 4605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, "Invalid palette length"); 4615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* It may not actually be necessary to set png_ptr->palette here; 4665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * we do it for backward compatibility with the way the png_handle_tRNS 4675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * function used to do the allocation. 4685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 4695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FREE_ME_SUPPORTED 4705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0); 4715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 4725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Changed in libpng-1.2.1 to allocate PNG_MAX_PALETTE_LENGTH instead 4745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * of num_palette entries, in case of an invalid PNG file that has 4755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * too-large sample values. 4765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 4775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->palette = (png_colorp)png_calloc(png_ptr, 4785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PNG_MAX_PALETTE_LENGTH * png_sizeof(png_color)); 4795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(png_ptr->palette, palette, num_palette * png_sizeof(png_color)); 4805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->palette = png_ptr->palette; 4815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette; 4825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FREE_ME_SUPPORTED 4845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->free_me |= PNG_FREE_PLTE; 4855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 4865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->flags |= PNG_FLAG_FREE_PLTE; 4875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 4885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_PLTE; 4905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_sBIT_SUPPORTED 4935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 4945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_sBIT(png_structp png_ptr, png_infop info_ptr, 4955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_color_8p sig_bit) 4965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 4975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "sBIT"); 4985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 5005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 5015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(&(info_ptr->sig_bit), sig_bit, png_sizeof(png_color_8)); 5035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_sBIT; 5045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_sRGB_SUPPORTED 5085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 5095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_sRGB(png_structp png_ptr, png_infop info_ptr, int intent) 5105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 5115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "sRGB"); 5125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 5145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 5155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->srgb_intent = (png_byte)intent; 5175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_sRGB; 5185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 5215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr, 5225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int intent) 5235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 5245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_gAMA_SUPPORTED 5255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FLOATING_POINT_SUPPORTED 5265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) float file_gamma; 5275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FIXED_POINT_SUPPORTED 5295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_fixed_point int_file_gamma; 5305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_cHRM_SUPPORTED 5335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FLOATING_POINT_SUPPORTED 5345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) float white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y; 5355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_fixed_point int_white_x, int_white_y, int_red_x, int_red_y, int_green_x, 5375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int_green_y, int_blue_x, int_blue_y; 5385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "sRGB_gAMA_and_cHRM"); 5405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 5425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 5435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_set_sRGB(png_ptr, info_ptr, intent); 5455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_gAMA_SUPPORTED 5475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FLOATING_POINT_SUPPORTED 5485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) file_gamma = (float).45455; 5495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_set_gAMA(png_ptr, info_ptr, file_gamma); 5505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FIXED_POINT_SUPPORTED 5525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int_file_gamma = 45455L; 5535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_set_gAMA_fixed(png_ptr, info_ptr, int_file_gamma); 5545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_cHRM_SUPPORTED 5585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int_white_x = 31270L; 5595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int_white_y = 32900L; 5605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int_red_x = 64000L; 5615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int_red_y = 33000L; 5625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int_green_x = 30000L; 5635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int_green_y = 60000L; 5645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int_blue_x = 15000L; 5655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int_blue_y = 6000L; 5665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FLOATING_POINT_SUPPORTED 5685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) white_x = (float).3127; 5695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) white_y = (float).3290; 5705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) red_x = (float).64; 5715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) red_y = (float).33; 5725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) green_x = (float).30; 5735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) green_y = (float).60; 5745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) blue_x = (float).15; 5755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) blue_y = (float).06; 5765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FIXED_POINT_SUPPORTED 5795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_set_cHRM_fixed(png_ptr, info_ptr, 5805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int_white_x, int_white_y, int_red_x, int_red_y, int_green_x, 5815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int_green_y, int_blue_x, int_blue_y); 5825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FLOATING_POINT_SUPPORTED 5845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_set_cHRM(png_ptr, info_ptr, 5855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y); 5865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif /* cHRM */ 5885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif /* sRGB */ 5905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_iCCP_SUPPORTED 5935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 5945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_iCCP(png_structp png_ptr, png_infop info_ptr, 5955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_charp name, int compression_type, 5965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_charp profile, png_uint_32 proflen) 5975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 5985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_charp new_iccp_name; 5995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_charp new_iccp_profile; 6005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_uint_32 length; 6015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "iCCP"); 6035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL || name == NULL || profile == NULL) 6055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 6065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) length = png_strlen(name)+1; 6085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) new_iccp_name = (png_charp)png_malloc_warn(png_ptr, length); 6095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (new_iccp_name == NULL) 6105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 6115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, "Insufficient memory to process iCCP chunk."); 6125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 6135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(new_iccp_name, name, length); 6155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) new_iccp_profile = (png_charp)png_malloc_warn(png_ptr, proflen); 6165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (new_iccp_profile == NULL) 6175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 6185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_free (png_ptr, new_iccp_name); 6195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, 6205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Insufficient memory to process iCCP profile."); 6215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 6225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(new_iccp_profile, profile, (png_size_t)proflen); 6245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_free_data(png_ptr, info_ptr, PNG_FREE_ICCP, 0); 6265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->iccp_proflen = proflen; 6285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->iccp_name = new_iccp_name; 6295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->iccp_profile = new_iccp_profile; 6305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Compression is always zero but is here so the API and info structure 6315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * does not have to change if we introduce multiple compression types 6325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 6335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->iccp_compression = (png_byte)compression_type; 6345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FREE_ME_SUPPORTED 6355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->free_me |= PNG_FREE_ICCP; 6365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 6375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_iCCP; 6385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 6405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_TEXT_SUPPORTED 6425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 6435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, 6445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int num_text) 6455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 6465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int ret; 6475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ret = png_set_text_2(png_ptr, info_ptr, text_ptr, num_text); 6485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (ret) 6495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_error(png_ptr, "Insufficient memory to store text"); 6505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int /* PRIVATE */ 6535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, 6545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int num_text) 6555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 6565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int i; 6575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", ((png_ptr == NULL || 6595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->chunk_name[0] == '\0') ? 6605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "text" : (png_const_charp)png_ptr->chunk_name)); 6615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL || num_text == 0) 6635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return(0); 6645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Make sure we have enough space in the "text" array in info_struct 6665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * to hold all of the incoming text_ptr objects. 6675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 6685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (info_ptr->num_text + num_text > info_ptr->max_text) 6695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 6705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (info_ptr->text != NULL) 6715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 6725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_textp old_text; 6735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int old_max; 6745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) old_max = info_ptr->max_text; 6765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->max_text = info_ptr->num_text + num_text + 8; 6775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) old_text = info_ptr->text; 6785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->text = (png_textp)png_malloc_warn(png_ptr, 6795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_uint_32)(info_ptr->max_text * png_sizeof(png_text))); 6805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (info_ptr->text == NULL) 6815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 6825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_free(png_ptr, old_text); 6835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return(1); 6845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(info_ptr->text, old_text, (png_size_t)(old_max * 6865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_sizeof(png_text))); 6875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_free(png_ptr, old_text); 6885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 6905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 6915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->max_text = num_text + 8; 6925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->num_text = 0; 6935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->text = (png_textp)png_malloc_warn(png_ptr, 6945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_uint_32)(info_ptr->max_text * png_sizeof(png_text))); 6955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (info_ptr->text == NULL) 6965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return(1); 6975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FREE_ME_SUPPORTED 6985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->free_me |= PNG_FREE_TEXT; 6995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 7005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(3, "allocated %d entries for info_ptr->text", 7025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->max_text); 7035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (i = 0; i < num_text; i++) 7055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 7065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_size_t text_length, key_len; 7075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_size_t lang_len, lang_key_len; 7085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_textp textp = &(info_ptr->text[info_ptr->num_text]); 7095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (text_ptr[i].key == NULL) 7115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) continue; 7125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) key_len = png_strlen(text_ptr[i].key); 7145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (text_ptr[i].compression <= 0) 7165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 7175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) lang_len = 0; 7185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) lang_key_len = 0; 7195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 7225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_iTXt_SUPPORTED 7235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 7245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Set iTXt data */ 7255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (text_ptr[i].lang != NULL) 7275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) lang_len = png_strlen(text_ptr[i].lang); 7285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 7295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) lang_len = 0; 7305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (text_ptr[i].lang_key != NULL) 7315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) lang_key_len = png_strlen(text_ptr[i].lang_key); 7325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 7335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) lang_key_len = 0; 7345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else /* PNG_iTXt_SUPPORTED */ 7365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 7375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, "iTXt chunk not supported."); 7385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) continue; 7395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 7415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (text_ptr[i].text == NULL || text_ptr[i].text[0] == '\0') 7435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 7445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) text_length = 0; 7455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_iTXt_SUPPORTED 7465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (text_ptr[i].compression > 0) 7475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) textp->compression = PNG_ITXT_COMPRESSION_NONE; 7485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 7495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 7505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) textp->compression = PNG_TEXT_COMPRESSION_NONE; 7515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 7545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 7555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) text_length = png_strlen(text_ptr[i].text); 7565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) textp->compression = text_ptr[i].compression; 7575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) textp->key = (png_charp)png_malloc_warn(png_ptr, 7605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_uint_32) 7615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (key_len + text_length + lang_len + lang_key_len + 4)); 7625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (textp->key == NULL) 7635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return(1); 7645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug2(2, "Allocated %lu bytes at %x in png_set_text", 7655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_uint_32) 7665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (key_len + lang_len + lang_key_len + text_length + 4), 7675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (int)textp->key); 7685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(textp->key, text_ptr[i].key,(png_size_t)(key_len)); 7705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *(textp->key + key_len) = '\0'; 7715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_iTXt_SUPPORTED 7725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (text_ptr[i].compression > 0) 7735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 7745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) textp->lang = textp->key + key_len + 1; 7755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(textp->lang, text_ptr[i].lang, lang_len); 7765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *(textp->lang + lang_len) = '\0'; 7775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) textp->lang_key = textp->lang + lang_len + 1; 7785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(textp->lang_key, text_ptr[i].lang_key, lang_key_len); 7795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *(textp->lang_key + lang_key_len) = '\0'; 7805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) textp->text = textp->lang_key + lang_key_len + 1; 7815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 7835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 7845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 7855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_iTXt_SUPPORTED 7865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) textp->lang=NULL; 7875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) textp->lang_key=NULL; 7885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 7895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) textp->text = textp->key + key_len + 1; 7905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (text_length) 7925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(textp->text, text_ptr[i].text, 7935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_size_t)(text_length)); 7945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *(textp->text + text_length) = '\0'; 7955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_iTXt_SUPPORTED 7975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (textp->compression > 0) 7985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 7995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) textp->text_length = 0; 8005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) textp->itxt_length = text_length; 8015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 8035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 8045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 8065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) textp->text_length = text_length; 8075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_iTXt_SUPPORTED 8085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) textp->itxt_length = 0; 8095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 8105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->num_text++; 8125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(3, "transferred text chunk %d", info_ptr->num_text); 8135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return(0); 8155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 8165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 8175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_tIME_SUPPORTED 8195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 8205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_tIME(png_structp png_ptr, png_infop info_ptr, png_timep mod_time) 8215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 8225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "tIME"); 8235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL || 8255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_ptr->mode & PNG_WROTE_tIME)) 8265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 8275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(&(info_ptr->mod_time), mod_time, png_sizeof(png_time)); 8295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_tIME; 8305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 8315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 8325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_tRNS_SUPPORTED 8345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 8355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_tRNS(png_structp png_ptr, png_infop info_ptr, 8365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_bytep trans, int num_trans, png_color_16p trans_values) 8375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 8385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "tRNS"); 8395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 8415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 8425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (trans != NULL) 8445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 8455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* It may not actually be necessary to set png_ptr->trans here; 8465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * we do it for backward compatibility with the way the png_handle_tRNS 8475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * function used to do the allocation. 8485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 8495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FREE_ME_SUPPORTED 8515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0); 8525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 8535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Changed from num_trans to PNG_MAX_PALETTE_LENGTH in version 1.2.1 */ 8555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->trans = info_ptr->trans = (png_bytep)png_malloc(png_ptr, 8565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_uint_32)PNG_MAX_PALETTE_LENGTH); 8575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (num_trans > 0 && num_trans <= PNG_MAX_PALETTE_LENGTH) 8585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(info_ptr->trans, trans, (png_size_t)num_trans); 8595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (trans_values != NULL) 8625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 8635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int sample_max = (1 << info_ptr->bit_depth); 8645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if ((info_ptr->color_type == PNG_COLOR_TYPE_GRAY && 8655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (int)trans_values->gray > sample_max) || 8665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (info_ptr->color_type == PNG_COLOR_TYPE_RGB && 8675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ((int)trans_values->red > sample_max || 8685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (int)trans_values->green > sample_max || 8695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (int)trans_values->blue > sample_max))) 8705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, 8715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "tRNS chunk has out-of-range samples for bit_depth"); 8725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(&(info_ptr->trans_values), trans_values, 8735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_sizeof(png_color_16)); 8745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (num_trans == 0) 8755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) num_trans = 1; 8765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->num_trans = (png_uint_16)num_trans; 8795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (num_trans != 0) 8805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 8815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_tRNS; 8825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FREE_ME_SUPPORTED 8835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->free_me |= PNG_FREE_TRNS; 8845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 8855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->flags |= PNG_FLAG_FREE_TRNS; 8865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 8875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 8895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 8905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_sPLT_SUPPORTED 8925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 8935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_sPLT(png_structp png_ptr, 8945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_infop info_ptr, png_sPLT_tp entries, int nentries) 8955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 8965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * entries - array of png_sPLT_t structures 8975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * to be added to the list of palettes 8985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * in the info structure. 8995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * nentries - number of palette structures to be 9005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * added. 9015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 9025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 9035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_sPLT_tp np; 9045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int i; 9055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 9075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 9085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) np = (png_sPLT_tp)png_malloc_warn(png_ptr, 9105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (info_ptr->splt_palettes_num + nentries) * 9115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_uint_32)png_sizeof(png_sPLT_t)); 9125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (np == NULL) 9135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 9145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, "No memory for sPLT palettes."); 9155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 9165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 9175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(np, info_ptr->splt_palettes, 9195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->splt_palettes_num * png_sizeof(png_sPLT_t)); 9205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_free(png_ptr, info_ptr->splt_palettes); 9215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->splt_palettes=NULL; 9225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (i = 0; i < nentries; i++) 9245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 9255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_sPLT_tp to = np + info_ptr->splt_palettes_num + i; 9265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_sPLT_tp from = entries + i; 9275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_uint_32 length; 9285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) length = png_strlen(from->name) + 1; 9305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) to->name = (png_charp)png_malloc_warn(png_ptr, length); 9315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (to->name == NULL) 9325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 9335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, 9345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Out of memory while processing sPLT chunk"); 9355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) continue; 9365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 9375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(to->name, from->name, length); 9385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) to->entries = (png_sPLT_entryp)png_malloc_warn(png_ptr, 9395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_uint_32)(from->nentries * png_sizeof(png_sPLT_entry))); 9405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (to->entries == NULL) 9415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 9425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, 9435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Out of memory while processing sPLT chunk"); 9445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_free(png_ptr, to->name); 9455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) to->name = NULL; 9465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) continue; 9475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 9485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(to->entries, from->entries, 9495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) from->nentries * png_sizeof(png_sPLT_entry)); 9505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) to->nentries = from->nentries; 9515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) to->depth = from->depth; 9525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 9535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->splt_palettes = np; 9555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->splt_palettes_num += nentries; 9565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_sPLT; 9575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FREE_ME_SUPPORTED 9585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->free_me |= PNG_FREE_SPLT; 9595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 9605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 9615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif /* PNG_sPLT_SUPPORTED */ 9625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED 9645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 9655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_unknown_chunks(png_structp png_ptr, 9665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns) 9675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 9685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_unknown_chunkp np; 9695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int i; 9705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL || num_unknowns == 0) 9725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 9735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) np = (png_unknown_chunkp)png_malloc_warn(png_ptr, 9755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_uint_32)((info_ptr->unknown_chunks_num + num_unknowns) * 9765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_sizeof(png_unknown_chunk))); 9775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (np == NULL) 9785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 9795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, 9805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Out of memory while processing unknown chunk."); 9815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 9825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 9835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(np, info_ptr->unknown_chunks, 9855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->unknown_chunks_num * png_sizeof(png_unknown_chunk)); 9865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_free(png_ptr, info_ptr->unknown_chunks); 9875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->unknown_chunks = NULL; 9885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (i = 0; i < num_unknowns; i++) 9905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 9915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_unknown_chunkp to = np + info_ptr->unknown_chunks_num + i; 9925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_unknown_chunkp from = unknowns + i; 9935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy((png_charp)to->name, (png_charp)from->name, 9955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_sizeof(from->name)); 9965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) to->name[png_sizeof(to->name)-1] = '\0'; 9975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) to->size = from->size; 9985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Note our location in the read or write sequence */ 9995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) to->location = (png_byte)(png_ptr->mode & 0xff); 10005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (from->size == 0) 10025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) to->data=NULL; 10035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 10045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 10055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) to->data = (png_bytep)png_malloc_warn(png_ptr, 10065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_uint_32)from->size); 10075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (to->data == NULL) 10085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 10095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_warning(png_ptr, 10105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Out of memory while processing unknown chunk."); 10115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) to->size = 0; 10125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 10135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 10145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(to->data, from->data, from->size); 10155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 10165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 10175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->unknown_chunks = np; 10195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->unknown_chunks_num += num_unknowns; 10205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FREE_ME_SUPPORTED 10215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->free_me |= PNG_FREE_UNKN; 10225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 10235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 10245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 10255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_unknown_chunk_location(png_structp png_ptr, png_infop info_ptr, 10265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int chunk, int location) 10275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 10285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr != NULL && info_ptr != NULL && chunk >= 0 && chunk < 10295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (int)info_ptr->unknown_chunks_num) 10305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->unknown_chunks[chunk].location = (png_byte)location; 10315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 10325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 10335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(PNG_1_0_X) || defined(PNG_1_2_X) 10355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \ 10365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) 10375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 10385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_permit_empty_plte (png_structp png_ptr, int empty_plte_permitted) 10395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 10405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* This function is deprecated in favor of png_permit_mng_features() 10415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) and will be removed from libpng-1.3.0 */ 10425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug(1, "in png_permit_empty_plte, DEPRECATED."); 10445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL) 10465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 10475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->mng_features_permitted = (png_byte) 10485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ((png_ptr->mng_features_permitted & (~PNG_FLAG_MNG_EMPTY_PLTE)) | 10495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ((empty_plte_permitted & PNG_FLAG_MNG_EMPTY_PLTE))); 10505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 10515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 10525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 10535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_MNG_FEATURES_SUPPORTED 10555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_uint_32 PNGAPI 10565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_permit_mng_features (png_structp png_ptr, png_uint_32 mng_features) 10575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 10585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug(1, "in png_permit_mng_features"); 10595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL) 10615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (png_uint_32)0; 10625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->mng_features_permitted = 10635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_byte)(mng_features & PNG_ALL_MNG_FEATURES); 10645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (png_uint_32)png_ptr->mng_features_permitted; 10655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 10665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 10675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED 10695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 10705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_keep_unknown_chunks(png_structp png_ptr, int keep, png_bytep 10715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) chunk_list, int num_chunks) 10725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 10735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_bytep new_list, p; 10745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int i, old_num_chunks; 10755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL) 10765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 10775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (num_chunks == 0) 10785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 10795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (keep == PNG_HANDLE_CHUNK_ALWAYS || keep == PNG_HANDLE_CHUNK_IF_SAFE) 10805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->flags |= PNG_FLAG_KEEP_UNKNOWN_CHUNKS; 10815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 10825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->flags &= ~PNG_FLAG_KEEP_UNKNOWN_CHUNKS; 10835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (keep == PNG_HANDLE_CHUNK_ALWAYS) 10855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->flags |= PNG_FLAG_KEEP_UNSAFE_CHUNKS; 10865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 10875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->flags &= ~PNG_FLAG_KEEP_UNSAFE_CHUNKS; 10885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 10895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 10905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (chunk_list == NULL) 10915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 10925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) old_num_chunks = png_ptr->num_chunk_list; 10935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) new_list=(png_bytep)png_malloc(png_ptr, 10945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_uint_32) 10955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (5*(num_chunks + old_num_chunks))); 10965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr->chunk_list != NULL) 10975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 10985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(new_list, png_ptr->chunk_list, 10995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_size_t)(5*old_num_chunks)); 11005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_free(png_ptr, png_ptr->chunk_list); 11015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->chunk_list=NULL; 11025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 11035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_memcpy(new_list + 5*old_num_chunks, chunk_list, 11045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (png_size_t)(5*num_chunks)); 11055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (p = new_list + 5*old_num_chunks + 4, i = 0; i<num_chunks; i++, p += 5) 11065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *p=(png_byte)keep; 11075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->num_chunk_list = old_num_chunks + num_chunks; 11085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->chunk_list = new_list; 11095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_FREE_ME_SUPPORTED 11105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->free_me |= PNG_FREE_LIST; 11115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 11125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 11135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 11145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_READ_USER_CHUNKS_SUPPORTED 11165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 11175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_read_user_chunk_fn(png_structp png_ptr, png_voidp user_chunk_ptr, 11185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_user_chunk_ptr read_user_chunk_fn) 11195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 11205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug(1, "in png_set_read_user_chunk_fn"); 11215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL) 11235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 11245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->read_user_chunk_fn = read_user_chunk_fn; 11265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->user_chunk_ptr = user_chunk_ptr; 11275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 11285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 11295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_INFO_IMAGE_SUPPORTED 11315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 11325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_rows(png_structp png_ptr, png_infop info_ptr, png_bytepp row_pointers) 11335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 11345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug1(1, "in %s storage function", "rows"); 11355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL || info_ptr == NULL) 11375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 11385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (info_ptr->row_pointers && (info_ptr->row_pointers != row_pointers)) 11405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_free_data(png_ptr, info_ptr, PNG_FREE_ROWS, 0); 11415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->row_pointers = row_pointers; 11425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (row_pointers) 11435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid |= PNG_INFO_IDAT; 11445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 11455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 11465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 11485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_compression_buffer_size(png_structp png_ptr, 11495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_uint_32 size) 11505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 11515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL) 11525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 11535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_free(png_ptr, png_ptr->zbuf); 11545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->zbuf_size = (png_size_t)size; 11555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, size); 11565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->zstream.next_out = png_ptr->zbuf; 11575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; 11585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 11595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 11615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_invalid(png_structp png_ptr, png_infop info_ptr, int mask) 11625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 11635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr && info_ptr) 11645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info_ptr->valid &= ~mask; 11655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 11665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef PNG_1_0_X 11695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_ASSEMBLER_CODE_SUPPORTED 11705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* Function was added to libpng 1.2.0 and should always exist by default */ 11715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 11725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_asm_flags (png_structp png_ptr, png_uint_32 asm_flags) 11735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 11745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* Obsolete as of libpng-1.2.20 and will be removed from libpng-1.4.0 */ 11755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr != NULL) 11765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->asm_flags = 0; 11775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) asm_flags = asm_flags; /* Quiet the compiler */ 11785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 11795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* This function was added to libpng 1.2.0 */ 11815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 11825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_mmx_thresholds (png_structp png_ptr, 11835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_byte mmx_bitdepth_threshold, 11845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_uint_32 mmx_rowbytes_threshold) 11855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 11865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* Obsolete as of libpng-1.2.20 and will be removed from libpng-1.4.0 */ 11875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL) 11885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 11895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Quiet the compiler */ 11905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) mmx_bitdepth_threshold = mmx_bitdepth_threshold; 11915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) mmx_rowbytes_threshold = mmx_rowbytes_threshold; 11925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 11935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif /* ?PNG_ASSEMBLER_CODE_SUPPORTED */ 11945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_SET_USER_LIMITS_SUPPORTED 11965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* This function was added to libpng 1.2.6 */ 11975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 11985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_user_limits (png_structp png_ptr, png_uint_32 user_width_max, 11995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_uint_32 user_height_max) 12005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 12015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Images with dimensions larger than these limits will be 12025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * rejected by png_set_IHDR(). To accept any PNG datastream 12035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * regardless of dimensions, set both limits to 0x7ffffffL. 12045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 12055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (png_ptr == NULL) 12065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 12075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->user_width_max = user_width_max; 12085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->user_height_max = user_height_max; 12095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 12105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */ 12115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 12125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 12135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PNG_BENIGN_ERRORS_SUPPORTED 12145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PNGAPI 12155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)png_set_benign_errors(png_structp png_ptr, int allowed) 12165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 12175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_debug(1, "in png_set_benign_errors"); 12185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 12195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (allowed) 12205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN; 12215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 12225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) png_ptr->flags &= ~PNG_FLAG_BENIGN_ERRORS_WARN; 12235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 12245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif /* PNG_BENIGN_ERRORS_SUPPORTED */ 12255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif /* ?PNG_1_0_X */ 12265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ 1227