Lines Matching refs:screen_gamma
366 png_ptr->screen_gamma = output_gamma;
842 png_ptr->screen_gamma = scrn_gamma;
1077 * the [file] gamma and screen_gamma are not close reciprocals, otherwise it
1081 png_gamma_threshold(png_fixed_point screen_gamma, png_fixed_point file_gamma)
1091 return !png_muldiv(>est, screen_gamma, file_gamma, PNG_FP_1) ||
1307 if (png_ptr->screen_gamma != 0) /* screen set too */
1309 png_ptr->screen_gamma);
1315 png_ptr->screen_gamma = png_reciprocal(png_ptr->colorspace.gamma);
1318 else if (png_ptr->screen_gamma != 0)
1324 png_ptr->colorspace.gamma = png_reciprocal(png_ptr->screen_gamma);
1332 png_ptr->screen_gamma = png_ptr->colorspace.gamma = PNG_FP_1;
1410 if (png_gamma_significant(png_ptr->screen_gamma) == 0)
1566 png_gamma_significant(png_ptr->screen_gamma) != 0)) ||
1569 png_gamma_significant(png_ptr->screen_gamma) != 0
1575 png_gamma_significant(png_ptr->screen_gamma) != 0))
1619 g = (png_ptr->screen_gamma);
1626 png_ptr->screen_gamma);
1632 png_ptr->screen_gamma);
1728 g = png_ptr->screen_gamma;
1735 png_ptr->screen_gamma);
1741 png_ptr->screen_gamma);
1985 * the screen_gamma value. The following probably results in weirdness if
