1588     png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);  in load_png_image()  local
1589     if (!png_ptr)  in load_png_image()
1591     png_infop info_ptr = png_create_info_struct(png_ptr);  in load_png_image()
1595     if (setjmp(png_jmpbuf(png_ptr)))  in load_png_image()
1598     png_init_io(png_ptr, fd);  in load_png_image()
1599     png_set_sig_bytes(png_ptr, SIZE_PNG_HEADER);  in load_png_image()
1600     png_set_user_limits(png_ptr, limits.max_width, limits.max_height);  in load_png_image()
1601     png_read_info(png_ptr, info_ptr);  in load_png_image()
1603     __u8 bit_depth = png_get_bit_depth(png_ptr, info_ptr);  in load_png_image()
1604     __u32 width = png_get_image_width(png_ptr, info_ptr);  in load_png_image()
1605     __u32 height = png_get_image_height(png_ptr, info_ptr);  in load_png_image()
1606     __u8 color_type = png_get_color_type(png_ptr, info_ptr);  in load_png_image()
1610         png_set_palette_to_rgb(png_ptr);  in load_png_image()
1611         png_set_filler(png_ptr, 128, PNG_FILLER_AFTER);  in load_png_image()
1615             png_set_expand_gray_1_2_4_to_8(png_ptr);  in load_png_image()
1616             if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS))  in load_png_image()
1617                 png_set_tRNS_to_alpha(png_ptr);  in load_png_image()
1619             png_set_filler(png_ptr, 128, PNG_FILLER_AFTER);  in load_png_image()
1623         png_set_gray_to_rgb(png_ptr);  in load_png_image()
1626         png_set_filler(png_ptr, 128, PNG_FILLER_AFTER);  in load_png_image()
1629         png_set_bgr(png_ptr);  in load_png_image()
1637         png_set_strip_16(png_ptr);  in load_png_image()
1655     png_set_rows(png_ptr, info_ptr, row_pointers);  in load_png_image()
1656     png_read_update_info(png_ptr, info_ptr);  in load_png_image()
1657     img->rowbytes = png_get_rowbytes(png_ptr, info_ptr);  in load_png_image()
1659     png_read_image(png_ptr, row_pointers);  in load_png_image()
1660     png_read_end(png_ptr, NULL);  in load_png_image()
1662     png_destroy_read_struct(&png_ptr, &info_ptr, NULL);  in load_png_image()
1671     if (!png_ptr || !info_ptr)  in load_png_image()
1673     png_destroy_read_struct(&png_ptr, &info_ptr, NULL);  in load_png_image()