947                back_1.red = png_ptr->gamma_to_1[png_ptr->background.red];  in png_init_read_transformations()
948                back_1.green = png_ptr->gamma_to_1[png_ptr->background.green];  in png_init_read_transformations()
949                back_1.blue = png_ptr->gamma_to_1[png_ptr->background.blue];  in png_init_read_transformations()
1013                      v = png_ptr->gamma_to_1[palette[i].red];  in png_init_read_transformations()
1017                      v = png_ptr->gamma_to_1[palette[i].green];  in png_init_read_transformations()
1021                      v = png_ptr->gamma_to_1[palette[i].blue];  in png_init_read_transformations()
1466          png_ptr->gamma_to_1, png_ptr->gamma_16_table,  in png_do_read_transformations()
2352             if (png_ptr->gamma_from_1 != NULL && png_ptr->gamma_to_1 != NULL)  in png_do_rgb_to_gray()
2359                   png_byte red   = png_ptr->gamma_to_1[*(sp++)];  in png_do_rgb_to_gray()
2360                   png_byte green = png_ptr->gamma_to_1[*(sp++)];  in png_do_rgb_to_gray()
2361                   png_byte blue  = png_ptr->gamma_to_1[*(sp++)];  in png_do_rgb_to_gray()
2458             if (png_ptr->gamma_from_1 != NULL && png_ptr->gamma_to_1 != NULL)  in png_do_rgb_to_gray()
2464                   png_byte red   = png_ptr->gamma_to_1[*(sp++)];  in png_do_rgb_to_gray()
2465                   png_byte green = png_ptr->gamma_to_1[*(sp++)];  in png_do_rgb_to_gray()
2466                   png_byte blue  = png_ptr->gamma_to_1[*(sp++)];  in png_do_rgb_to_gray()
2639          back_1.red = png_ptr->gamma_to_1[png_ptr->background.red];  in png_correct_palette()
2640          back_1.green = png_ptr->gamma_to_1[png_ptr->background.green];  in png_correct_palette()
2641          back_1.blue = png_ptr->gamma_to_1[png_ptr->background.blue];  in png_correct_palette()
2696                v = png_ptr->gamma_to_1[png_ptr->palette[i].red];  in png_correct_palette()
2700                v = png_ptr->gamma_to_1[png_ptr->palette[i].green];  in png_correct_palette()
2704                v = png_ptr->gamma_to_1[png_ptr->palette[i].blue];  in png_correct_palette()
2812    png_bytep gamma_table, png_bytep gamma_from_1, png_bytep gamma_to_1,  in png_do_background()  argument
3165                if (gamma_to_1 != NULL && gamma_from_1 != NULL &&  in png_do_background()
3187                         v = gamma_to_1[*sp];  in png_do_background()
3308                if (gamma_to_1 != NULL && gamma_from_1 != NULL &&  in png_do_background()
3334                         v = gamma_to_1[*sp];  in png_do_background()
3337                         v = gamma_to_1[*(sp + 1)];  in png_do_background()
3340                         v = gamma_to_1[*(sp + 2)];  in png_do_background()
4214         png_ptr->gamma_to_1 = (png_bytep)png_malloc(png_ptr,  in png_build_gamma_table()
4219            png_ptr->gamma_to_1[i] = (png_byte)(pow((double)i / 255.0,  in png_build_gamma_table()