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Lines Matching full:screen_gamma

327    png_ptr->screen_gamma = output_gamma;
804    png_ptr->screen_gamma = scrn_gamma;
1048  * the [file] gamma and screen_gamma are not close reciprocals, otherwise it
1052 png_gamma_threshold(png_fixed_point screen_gamma, png_fixed_point file_gamma)
1062    return !png_muldiv(&gtest, screen_gamma, file_gamma, PNG_FP_1) ||
1272          if (png_ptr->screen_gamma != 0) /* screen set too */
1274                png_ptr->screen_gamma);
1280             png_ptr->screen_gamma = png_reciprocal(png_ptr->gamma);
1283       else if (png_ptr->screen_gamma != 0)
1289          png_ptr->gamma = png_reciprocal(png_ptr->screen_gamma);
1297          png_ptr->screen_gamma = png_ptr->gamma = PNG_FP_1;
1372    if (!png_gamma_significant(png_ptr->screen_gamma))
1520             png_gamma_significant(png_ptr->screen_gamma)))
1523             || png_gamma_significant(png_ptr->screen_gamma)
1529          && png_gamma_significant(png_ptr->screen_gamma))
1574                      g = (png_ptr->screen_gamma);
1581                         png_ptr->screen_gamma);
1587                         png_ptr->screen_gamma);
1683                   g = png_ptr->screen_gamma;
1689                   gs = png_reciprocal2(png_ptr->gamma, png_ptr->screen_gamma);
1695                       png_ptr->screen_gamma);