1204          switch (png_ptr->bit_depth)  in png_init_rgb_transformations()
1447       png_ptr->bit_depth != 16)  in png_init_read_transformations()
1474       png_ptr->bit_depth == 16)  in png_init_read_transformations()
1532       png_build_gamma_table(png_ptr, png_ptr->bit_depth);  in png_init_read_transformations()
1899          info_ptr->bit_depth = 8;  in png_read_transform_info()
1909          if (info_ptr->bit_depth < 8)  in png_read_transform_info()
1910             info_ptr->bit_depth = 8;  in png_read_transform_info()
1935    if (info_ptr->bit_depth == 16)  in png_read_transform_info()
1940             info_ptr->bit_depth = 8;  in png_read_transform_info()
1945             info_ptr->bit_depth = 8;  in png_read_transform_info()
1959          info_ptr->bit_depth = 8;  in png_read_transform_info()
1964             info_ptr->bit_depth = 8;  in png_read_transform_info()
1990           png_ptr->palette_lookup && info_ptr->bit_depth == 8)  in png_read_transform_info()
1998    if (png_ptr->transformations & PNG_EXPAND_16 && info_ptr->bit_depth == 8 &&  in png_read_transform_info()
2001       info_ptr->bit_depth = 16;  in png_read_transform_info()
2006    if ((png_ptr->transformations & PNG_PACK) && (info_ptr->bit_depth < 8))  in png_read_transform_info()
2007       info_ptr->bit_depth = 8;  in png_read_transform_info()
2048       if (info_ptr->bit_depth < png_ptr->user_transform_depth)  in png_read_transform_info()
2049          info_ptr->bit_depth = png_ptr->user_transform_depth;  in png_read_transform_info()
2057        info_ptr->bit_depth);  in png_read_transform_info()
2358          row_info->bit_depth = png_ptr->user_transform_depth;  in png_do_read_transformations()
2363       row_info->pixel_depth = (png_byte)(row_info->bit_depth *  in png_do_read_transformations()
2383    if (row_info->bit_depth < 8)  in png_do_unpack()
2388       switch (row_info->bit_depth)  in png_do_unpack()
2463       row_info->bit_depth = 8;  in png_do_unpack()
2491       int bit_depth = row_info->bit_depth;  in png_do_unshift()  local
2495          shift[channels++] = bit_depth - sig_bits->red;  in png_do_unshift()
2496          shift[channels++] = bit_depth - sig_bits->green;  in png_do_unshift()
2497          shift[channels++] = bit_depth - sig_bits->blue;  in png_do_unshift()
2502          shift[channels++] = bit_depth - sig_bits->gray;  in png_do_unshift()
2507          shift[channels++] = bit_depth - sig_bits->alpha;  in png_do_unshift()
2518             if (shift[c] <= 0 || shift[c] >= bit_depth)  in png_do_unshift()
2529       switch (bit_depth)  in png_do_unshift()
2620    if (row_info->bit_depth == 16)  in png_do_scale_16_to_8()
2665       row_info->bit_depth = 8;  in png_do_scale_16_to_8()
2681    if (row_info->bit_depth == 16)  in png_do_chop()
2693       row_info->bit_depth = 8;  in png_do_chop()
2711          if (row_info->bit_depth == 8)  in png_do_read_swap_alpha()
2757          if (row_info->bit_depth == 8)  in png_do_read_swap_alpha()
2807       if (row_info->bit_depth == 8)  in png_do_read_invert_alpha()
2859       if (row_info->bit_depth == 8)  in png_do_read_invert_alpha()
2917       if (row_info->bit_depth == 8)  in png_do_read_filler()
2952       else if (row_info->bit_depth == 16)  in png_do_read_filler()
2994       if (row_info->bit_depth == 8)  in png_do_read_filler()
3033       else if (row_info->bit_depth == 16)  in png_do_read_filler()
3095    if (row_info->bit_depth >= 8 &&  in png_do_gray_to_rgb()
3100          if (row_info->bit_depth == 8)  in png_do_gray_to_rgb()
3132          if (row_info->bit_depth == 8)  in png_do_gray_to_rgb()
3167           row_info->bit_depth);  in png_do_gray_to_rgb()
3244       if (row_info->bit_depth == 8)  in png_do_rgb_to_gray()
3414           row_info->bit_depth);  in png_do_rgb_to_gray()
3429 png_build_grayscale_palette(int bit_depth, png_colorp palette)  in png_build_grayscale_palette()  argument
3441    switch (bit_depth)  in png_build_grayscale_palette()
3512             switch (row_info->bit_depth)  in png_do_compose()
3752             if (row_info->bit_depth == 8)  in png_do_compose()
3879             if (row_info->bit_depth == 8)  in png_do_compose()
4004             if (row_info->bit_depth == 8)  in png_do_compose()
4232    if (((row_info->bit_depth <= 8 && gamma_table != NULL) ||  in png_do_gamma()
4233        (row_info->bit_depth == 16 && gamma_16_table != NULL)))  in png_do_gamma()
4239             if (row_info->bit_depth == 8)  in png_do_gamma()
4281             if (row_info->bit_depth == 8)  in png_do_gamma()
4325             if (row_info->bit_depth == 8)  in png_do_gamma()
4351             if (row_info->bit_depth == 2)  in png_do_gamma()
4370             if (row_info->bit_depth == 4)  in png_do_gamma()
4384             else if (row_info->bit_depth == 8)  in png_do_gamma()
4394             else if (row_info->bit_depth == 16)  in png_do_gamma()
4429       if (row_info->bit_depth == 8)  in png_do_encode_alpha()
4448       else if (row_info->bit_depth == 16)  in png_do_encode_alpha()
4499       if (row_info->bit_depth < 8)  in png_do_expand_palette()
4501          switch (row_info->bit_depth)  in png_do_expand_palette()
4579          row_info->bit_depth = 8;  in png_do_expand_palette()
4584       if (row_info->bit_depth == 8)  in png_do_expand_palette()
4605                row_info->bit_depth = 8;  in png_do_expand_palette()
4625                row_info->bit_depth = 8;  in png_do_expand_palette()
4655          if (row_info->bit_depth < 8)  in png_do_expand()
4657             switch (row_info->bit_depth)  in png_do_expand()
4740             row_info->bit_depth = 8;  in png_do_expand()
4747             if (row_info->bit_depth == 8)  in png_do_expand()
4765             else if (row_info->bit_depth == 16)  in png_do_expand()
4792             row_info->pixel_depth = (png_byte)(row_info->bit_depth << 1);  in png_do_expand()
4799          if (row_info->bit_depth == 8)  in png_do_expand()
4819          else if (row_info->bit_depth == 16)  in png_do_expand()
4858          row_info->pixel_depth = (png_byte)(row_info->bit_depth << 2);  in png_do_expand()
4872    if (row_info->bit_depth == 8 &&  in png_do_expand_16()
4890       row_info->bit_depth = 16;  in png_do_expand_16()
4907    if (row_info->bit_depth == 8)  in png_do_quantize()
4941          row_info->pixel_depth = row_info->bit_depth;  in png_do_quantize()
4972          row_info->pixel_depth = row_info->bit_depth;  in png_do_quantize()
5004       if (row_info->bit_depth == 8)  in png_do_read_intrapixel()
5024       else if (row_info->bit_depth == 16)  in png_do_read_intrapixel()