110    png_ptr->transformations |= PNG_BACKGROUND;  in png_set_background()
115    png_ptr->transformations |= (need_expand ? PNG_BACKGROUND_EXPAND : 0);  in png_set_background()
128    png_ptr->transformations |= PNG_16_TO_8;  in png_set_strip_16()
172    png_ptr->transformations |= PNG_DITHER;  in png_set_dither()
562      png_ptr->transformations |= PNG_GAMMA;  in png_set_gamma()
581    png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS);  in png_set_expand()
612    png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS);  in png_set_palette_to_rgb()
626    png_ptr->transformations |= PNG_EXPAND;  in png_set_expand_gray_1_2_4_to_8()
642    png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS);  in png_set_gray_1_2_4_to_8()
653    png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS);  in png_set_tRNS_to_alpha()
664    png_ptr->transformations |= PNG_GRAY_TO_RGB;  in png_set_gray_to_rgb()
709       case 1: png_ptr->transformations |= PNG_RGB_TO_GRAY;  in png_set_rgb_to_gray_fixed()
712       case 2: png_ptr->transformations |= PNG_RGB_TO_GRAY_WARN;  in png_set_rgb_to_gray_fixed()
715       case 3: png_ptr->transformations |= PNG_RGB_TO_GRAY_ERR;  in png_set_rgb_to_gray_fixed()
719       png_ptr->transformations |= PNG_EXPAND;  in png_set_rgb_to_gray_fixed()
724       png_ptr->transformations &= ~PNG_RGB_TO_GRAY;  in png_set_rgb_to_gray_fixed()
766    png_ptr->transformations |= PNG_USER_TRANSFORM;  in png_set_read_user_transform_fn()
808    if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) &&  in png_init_read_transformations()
812    } else if ((png_ptr->transformations & PNG_BACKGROUND) &&  in png_init_read_transformations()
813               !(png_ptr->transformations & PNG_BACKGROUND_EXPAND) &&  in png_init_read_transformations()
814               (png_ptr->transformations & PNG_GRAY_TO_RGB) &&  in png_init_read_transformations()
823    if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) &&  in png_init_read_transformations()
824        (png_ptr->transformations & PNG_EXPAND))  in png_init_read_transformations()
835                if (!(png_ptr->transformations & PNG_EXPAND_tRNS))  in png_init_read_transformations()
847                if (!(png_ptr->transformations & PNG_EXPAND_tRNS))  in png_init_read_transformations()
859                if (!(png_ptr->transformations & PNG_EXPAND_tRNS))  in png_init_read_transformations()
885         if (png_ptr->transformations & PNG_INVERT_ALPHA)  in png_init_read_transformations()
888            if (!(png_ptr->transformations & PNG_EXPAND_tRNS))  in png_init_read_transformations()
923       png_ptr->transformations &= ~PNG_GAMMA;  in png_init_read_transformations()
926    if ((png_ptr->transformations & (PNG_GAMMA | PNG_RGB_TO_GRAY)) &&  in png_init_read_transformations()
932       if (png_ptr->transformations & PNG_BACKGROUND)  in png_init_read_transformations()
1038             png_ptr->transformations &= ~PNG_BACKGROUND;  in png_init_read_transformations()
1039             png_ptr->transformations &= ~PNG_GAMMA;  in png_init_read_transformations()
1040             png_ptr->transformations |= PNG_STRIP_ALPHA;  in png_init_read_transformations()
1119          png_ptr->transformations &= ~PNG_GAMMA;  in png_init_read_transformations()
1128    if ((png_ptr->transformations & PNG_BACKGROUND) &&  in png_init_read_transformations()
1159       png_ptr->transformations &= ~PNG_BACKGROUND;  in png_init_read_transformations()
1160       png_ptr->transformations |= PNG_STRIP_ALPHA;  in png_init_read_transformations()
1165    if ((png_ptr->transformations & PNG_SHIFT) &&  in png_init_read_transformations()
1206    if (png_ptr->transformations & PNG_EXPAND)  in png_read_transform_info()
1221             if (png_ptr->transformations & PNG_EXPAND_tRNS)  in png_read_transform_info()
1232    if (png_ptr->transformations & PNG_BACKGROUND)  in png_read_transform_info()
1241    if (png_ptr->transformations & PNG_GAMMA)  in png_read_transform_info()
1253    if ((png_ptr->transformations & PNG_16_TO_8) && (info_ptr->bit_depth == 16))  in png_read_transform_info()
1258    if (png_ptr->transformations & PNG_GRAY_TO_RGB)  in png_read_transform_info()
1263    if (png_ptr->transformations & PNG_RGB_TO_GRAY)  in png_read_transform_info()
1268    if (png_ptr->transformations & PNG_DITHER)  in png_read_transform_info()
1280    if ((png_ptr->transformations & PNG_PACK) && (info_ptr->bit_depth < 8))  in png_read_transform_info()
1301    if ((png_ptr->transformations & PNG_FILLER) &&  in png_read_transform_info()
1308       if (png_ptr->transformations & PNG_ADD_ALPHA)  in png_read_transform_info()
1316    if (png_ptr->transformations & PNG_USER_TRANSFORM)  in png_read_transform_info()
1372    if (png_ptr->transformations & PNG_EXPAND)  in png_do_read_transformations()
1382              (png_ptr->transformations & PNG_EXPAND_tRNS))  in png_do_read_transformations()
1399    if (png_ptr->transformations & PNG_RGB_TO_GRAY)  in png_do_read_transformations()
1407          if ((png_ptr->transformations & PNG_RGB_TO_GRAY) ==  in png_do_read_transformations()
1410          if ((png_ptr->transformations & PNG_RGB_TO_GRAY) ==  in png_do_read_transformations()
1452    if ((png_ptr->transformations & PNG_GRAY_TO_RGB) &&  in png_do_read_transformations()
1458    if ((png_ptr->transformations & PNG_BACKGROUND) &&  in png_do_read_transformations()
1474    if ((png_ptr->transformations & PNG_GAMMA) &&  in png_do_read_transformations()
1476        !((png_ptr->transformations & PNG_BACKGROUND) &&  in png_do_read_transformations()
1487    if (png_ptr->transformations & PNG_16_TO_8)  in png_do_read_transformations()
1492    if (png_ptr->transformations & PNG_DITHER)  in png_do_read_transformations()
1502    if (png_ptr->transformations & PNG_INVERT_MONO)  in png_do_read_transformations()
1507    if (png_ptr->transformations & PNG_SHIFT)  in png_do_read_transformations()
1513    if (png_ptr->transformations & PNG_PACK)  in png_do_read_transformations()
1518    if (png_ptr->transformations & PNG_BGR)  in png_do_read_transformations()
1523    if (png_ptr->transformations & PNG_PACKSWAP)  in png_do_read_transformations()
1529    if ((png_ptr->transformations & PNG_GRAY_TO_RGB) &&  in png_do_read_transformations()
1535    if (png_ptr->transformations & PNG_FILLER)  in png_do_read_transformations()
1541    if (png_ptr->transformations & PNG_INVERT_ALPHA)  in png_do_read_transformations()
1546    if (png_ptr->transformations & PNG_SWAP_ALPHA)  in png_do_read_transformations()
1551    if (png_ptr->transformations & PNG_SWAP_BYTES)  in png_do_read_transformations()
1556    if (png_ptr->transformations & PNG_USER_TRANSFORM)  in png_do_read_transformations()
2629    if (png_ptr->transformations & (PNG_GAMMA | PNG_BACKGROUND))  in png_correct_palette()
2738    if (png_ptr->transformations & PNG_GAMMA)  in png_correct_palette()
2754    if (png_ptr->transformations & PNG_BACKGROUND)  in png_correct_palette()
4209      if (png_ptr->transformations & ((PNG_BACKGROUND) | PNG_RGB_TO_GRAY))  in png_build_gamma_table()
4270      if (png_ptr->transformations & PNG_16_TO_8)  in png_build_gamma_table()
4294      if (png_ptr->transformations & (PNG_16_TO_8 | PNG_BACKGROUND))  in png_build_gamma_table()
4347      if (png_ptr->transformations & (PNG_BACKGROUND | PNG_RGB_TO_GRAY))  in png_build_gamma_table()