Cross Reference: /external/libpng/pngrtran.c

Lines Matching defs:info_ptr
1924 png_read_transform_info(png_structrp png_ptr, png_inforp info_ptr)
1931       if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
1938             info_ptr->color_type = PNG_COLOR_TYPE_RGB_ALPHA;
1941             info_ptr->color_type = PNG_COLOR_TYPE_RGB;
1943          info_ptr->bit_depth = 8;
1944          info_ptr->num_trans = 0;
1954                info_ptr->color_type |= PNG_COLOR_MASK_ALPHA;
1956          if (info_ptr->bit_depth < 8)
1957             info_ptr->bit_depth = 8;
1959          info_ptr->num_trans = 0;
1970       info_ptr->background = png_ptr->background;
1979     * TODO: this looks wrong; the info_ptr should end up with a gamma equal to
1981     * the info_ptr is used by the app after the rows have been read.
1983    info_ptr->colorspace.gamma = png_ptr->colorspace.gamma;
1986    if (info_ptr->bit_depth == 16)
1991             info_ptr->bit_depth = 8;
1996             info_ptr->bit_depth = 8;
2010          info_ptr->bit_depth = 8;
2015             info_ptr->bit_depth = 8;
2026       info_ptr->color_type = (png_byte)(info_ptr->color_type |
2032       info_ptr->color_type = (png_byte)(info_ptr->color_type &
2039       if (((info_ptr->color_type == PNG_COLOR_TYPE_RGB) ||
2040           (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)) &&
2041           png_ptr->palette_lookup && info_ptr->bit_depth == 8)
2043          info_ptr->color_type = PNG_COLOR_TYPE_PALETTE;
2049    if (png_ptr->transformations & PNG_EXPAND_16 && info_ptr->bit_depth == 8 &&
2050       info_ptr->color_type != PNG_COLOR_TYPE_PALETTE)
2052       info_ptr->bit_depth = 16;
2057    if ((png_ptr->transformations & PNG_PACK) && (info_ptr->bit_depth < 8))
2058       info_ptr->bit_depth = 8;
2061    if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
2062       info_ptr->channels = 1;
2064    else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR)
2065       info_ptr->channels = 3;
2068       info_ptr->channels = 1;
2073       info_ptr->color_type = (png_byte)(info_ptr->color_type &
2075       info_ptr->num_trans = 0;
2079    if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA)
2080       info_ptr->channels++;
2085        ((info_ptr->color_type == PNG_COLOR_TYPE_RGB) ||
2086        (info_ptr->color_type == PNG_COLOR_TYPE_GRAY)))
2088       info_ptr->channels++;
2091          info_ptr->color_type |= PNG_COLOR_MASK_ALPHA;
2099       if (info_ptr->bit_depth < png_ptr->user_transform_depth)
2100          info_ptr->bit_depth = png_ptr->user_transform_depth;
2102       if (info_ptr->channels < png_ptr->user_transform_channels)
2103          info_ptr->channels = png_ptr->user_transform_channels;
2107    info_ptr->pixel_depth = (png_byte)(info_ptr->channels *
2108        info_ptr->bit_depth);
2110    info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, info_ptr->width);
2118    png_ptr->info_rowbytes = info_ptr->rowbytes;