6617       image_pixel test_pixel;  in transform_info_imp()  local
6619       memset(&test_pixel, 0, sizeof test_pixel);  in transform_info_imp()
6620       test_pixel.colour_type = dp->this.colour_type; /* input */  in transform_info_imp()
6621       test_pixel.bit_depth = dp->this.bit_depth;  in transform_info_imp()
6622       if (test_pixel.colour_type == PNG_COLOR_TYPE_PALETTE)  in transform_info_imp()
6623          test_pixel.sample_depth = 8;  in transform_info_imp()
6625          test_pixel.sample_depth = test_pixel.bit_depth;  in transform_info_imp()
6629       test_pixel.have_tRNS = dp->this.is_transparent != 0;  in transform_info_imp()
6630       test_pixel.red_sBIT = test_pixel.green_sBIT = test_pixel.blue_sBIT =  in transform_info_imp()
6631          test_pixel.alpha_sBIT = test_pixel.sample_depth;  in transform_info_imp()
6633       dp->transform_list->mod(dp->transform_list, &test_pixel, pp, dp);  in transform_info_imp()
6635       if (test_pixel.colour_type != dp->output_colour_type)  in transform_info_imp()
6642          pos = safecatn(message, sizeof message, pos, test_pixel.colour_type);  in transform_info_imp()
6647       if (test_pixel.bit_depth != dp->output_bit_depth)  in transform_info_imp()
6654          pos = safecatn(message, sizeof message, pos, test_pixel.bit_depth);  in transform_info_imp()
6661       if (test_pixel.colour_type == PNG_COLOR_TYPE_PALETTE &&  in transform_info_imp()
6662           test_pixel.sample_depth != 8) /* oops - internal error! */  in transform_info_imp()
6664       else if (dp->unpacked && test_pixel.bit_depth != 8)  in transform_info_imp()
6666       else if (!dp->unpacked && test_pixel.colour_type != PNG_COLOR_TYPE_PALETTE  in transform_info_imp()
6667               && test_pixel.bit_depth != test_pixel.sample_depth)  in transform_info_imp()
6677          pos = safecatn(message, sizeof message, pos, test_pixel.sample_depth);  in transform_info_imp()
6679          pos = safecatn(message, sizeof message, pos, test_pixel.bit_depth);  in transform_info_imp()
6683       else if (test_pixel.bit_depth != dp->output_bit_depth)  in transform_info_imp()
6694          pos = safecatn(message, sizeof message, pos, test_pixel.bit_depth);  in transform_info_imp()