365    png_ptr->screen_gamma = output_gamma;  in png_set_alpha_mode_fixed()
839    png_ptr->screen_gamma = scrn_gamma;  in png_set_gamma_fixed()
1078 png_gamma_threshold(png_fixed_point screen_gamma, png_fixed_point file_gamma)  in png_gamma_threshold()  argument
1088    return !png_muldiv(&gtest, screen_gamma, file_gamma, PNG_FP_1) ||  in png_gamma_threshold()
1304          if (png_ptr->screen_gamma != 0) /* screen set too */  in png_init_read_transformations()
1306                png_ptr->screen_gamma);  in png_init_read_transformations()
1312             png_ptr->screen_gamma = png_reciprocal(png_ptr->colorspace.gamma);  in png_init_read_transformations()
1315       else if (png_ptr->screen_gamma != 0)  in png_init_read_transformations()
1321          png_ptr->colorspace.gamma = png_reciprocal(png_ptr->screen_gamma);  in png_init_read_transformations()
1329          png_ptr->screen_gamma = png_ptr->colorspace.gamma = PNG_FP_1;  in png_init_read_transformations()
1407    if (png_gamma_significant(png_ptr->screen_gamma) == 0)  in png_init_read_transformations()
1563          png_gamma_significant(png_ptr->screen_gamma) != 0)) ||  in png_init_read_transformations()
1566           png_gamma_significant(png_ptr->screen_gamma) != 0  in png_init_read_transformations()
1572        png_gamma_significant(png_ptr->screen_gamma) != 0))  in png_init_read_transformations()
1616                      g = (png_ptr->screen_gamma);  in png_init_read_transformations()
1623                         png_ptr->screen_gamma);  in png_init_read_transformations()
1629                         png_ptr->screen_gamma);  in png_init_read_transformations()
1725                   g = png_ptr->screen_gamma;  in png_init_read_transformations()
1732                      png_ptr->screen_gamma);  in png_init_read_transformations()
1738                       png_ptr->screen_gamma);  in png_init_read_transformations()