1880 png_read_transform_info(png_structp png_ptr, png_infop info_ptr)  in png_read_transform_info()  argument
1887       if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)  in png_read_transform_info()
1894             info_ptr->color_type = PNG_COLOR_TYPE_RGB_ALPHA;  in png_read_transform_info()
1897             info_ptr->color_type = PNG_COLOR_TYPE_RGB;  in png_read_transform_info()
1899          info_ptr->bit_depth = 8;  in png_read_transform_info()
1900          info_ptr->num_trans = 0;  in png_read_transform_info()
1907                info_ptr->color_type |= PNG_COLOR_MASK_ALPHA;  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()
1912          info_ptr->num_trans = 0;  in png_read_transform_info()
1923       info_ptr->background = png_ptr->background;  in png_read_transform_info()
1932    info_ptr->gamma = png_ptr->gamma;  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()
1975       info_ptr->color_type = (png_byte)(info_ptr->color_type |  in png_read_transform_info()
1981       info_ptr->color_type = (png_byte)(info_ptr->color_type &  in png_read_transform_info()
1988       if (((info_ptr->color_type == PNG_COLOR_TYPE_RGB) ||  in png_read_transform_info()
1989           (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)) &&  in png_read_transform_info()
1990           png_ptr->palette_lookup && info_ptr->bit_depth == 8)  in png_read_transform_info()
1992          info_ptr->color_type = PNG_COLOR_TYPE_PALETTE;  in png_read_transform_info()
1998    if (png_ptr->transformations & PNG_EXPAND_16 && info_ptr->bit_depth == 8 &&  in png_read_transform_info()
1999       info_ptr->color_type != PNG_COLOR_TYPE_PALETTE)  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()
2010    if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)  in png_read_transform_info()
2011       info_ptr->channels = 1;  in png_read_transform_info()
2013    else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR)  in png_read_transform_info()
2014       info_ptr->channels = 3;  in png_read_transform_info()
2017       info_ptr->channels = 1;  in png_read_transform_info()
2022       info_ptr->color_type = (png_byte)(info_ptr->color_type &  in png_read_transform_info()
2024       info_ptr->num_trans = 0;  in png_read_transform_info()
2028    if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA)  in png_read_transform_info()
2029       info_ptr->channels++;  in png_read_transform_info()
2034        ((info_ptr->color_type == PNG_COLOR_TYPE_RGB) ||  in png_read_transform_info()
2035        (info_ptr->color_type == PNG_COLOR_TYPE_GRAY)))  in png_read_transform_info()
2037       info_ptr->channels++;  in png_read_transform_info()
2040          info_ptr->color_type |= PNG_COLOR_MASK_ALPHA;  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()
2051       if (info_ptr->channels < png_ptr->user_transform_channels)  in png_read_transform_info()
2052          info_ptr->channels = png_ptr->user_transform_channels;  in png_read_transform_info()
2056    info_ptr->pixel_depth = (png_byte)(info_ptr->channels *  in png_read_transform_info()
2057        info_ptr->bit_depth);  in png_read_transform_info()
2059    info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, info_ptr->width);  in png_read_transform_info()
2067    png_ptr->info_rowbytes = info_ptr->rowbytes;  in png_read_transform_info()