1231          int trans_gray = png_ptr->trans_color.gray;  in png_init_rgb_transformations()
1265             png_ptr->trans_color.red = png_ptr->trans_color.green =  in png_init_rgb_transformations()
1266                png_ptr->trans_color.blue = (png_uint_16)trans_gray;  in png_init_rgb_transformations()
3217                         == png_ptr->trans_color.gray)  in png_do_compose()
3246                             == png_ptr->trans_color.gray)  in png_do_compose()
3282                             == png_ptr->trans_color.gray)  in png_do_compose()
3312                             == png_ptr->trans_color.gray)  in png_do_compose()
3348                             == png_ptr->trans_color.gray)  in png_do_compose()
3376                         if (*sp == png_ptr->trans_color.gray)  in png_do_compose()
3389                         if (*sp == png_ptr->trans_color.gray)  in png_do_compose()
3408                         if (v == png_ptr->trans_color.gray)  in png_do_compose()
3435                         if (v == png_ptr->trans_color.gray)  in png_do_compose()
3463                      if (*sp == png_ptr->trans_color.red &&  in png_do_compose()
3464                          *(sp + 1) == png_ptr->trans_color.green &&  in png_do_compose()
3465                          *(sp + 2) == png_ptr->trans_color.blue)  in png_do_compose()
3486                      if (*sp == png_ptr->trans_color.red &&  in png_do_compose()
3487                          *(sp + 1) == png_ptr->trans_color.green &&  in png_do_compose()
3488                          *(sp + 2) == png_ptr->trans_color.blue)  in png_do_compose()
3513                      if (r == png_ptr->trans_color.red &&  in png_do_compose()
3514                          g == png_ptr->trans_color.green &&  in png_do_compose()
3515                          b == png_ptr->trans_color.blue)  in png_do_compose()
3560                      if (r == png_ptr->trans_color.red &&  in png_do_compose()
3561                          g == png_ptr->trans_color.green &&  in png_do_compose()
3562                          b == png_ptr->trans_color.blue)  in png_do_compose()
4344     png_const_color_16p trans_color)  in png_do_expand()  argument
4356          unsigned int gray = trans_color ? trans_color->gray : 0;  in png_do_expand()
4448          if (trans_color != NULL)  in png_do_expand()
4500       else if (row_info->color_type == PNG_COLOR_TYPE_RGB && trans_color)  in png_do_expand()
4504             png_byte red = (png_byte)(trans_color->red & 0xff);  in png_do_expand()
4505             png_byte green = (png_byte)(trans_color->green & 0xff);  in png_do_expand()
4506             png_byte blue = (png_byte)(trans_color->blue & 0xff);  in png_do_expand()
4524             png_byte red_high = (png_byte)((trans_color->red >> 8) & 0xff);  in png_do_expand()
4525             png_byte green_high = (png_byte)((trans_color->green >> 8) & 0xff);  in png_do_expand()
4526             png_byte blue_high = (png_byte)((trans_color->blue >> 8) & 0xff);  in png_do_expand()
4527             png_byte red_low = (png_byte)(trans_color->red & 0xff);  in png_do_expand()
4528             png_byte green_low = (png_byte)(trans_color->green & 0xff);  in png_do_expand()
4529             png_byte blue_low = (png_byte)(trans_color->blue & 0xff);  in png_do_expand()
4741                 &(png_ptr->trans_color));  in png_do_read_transformations()