Lines Matching refs:background_gamma
128 int need_expand, png_fixed_point background_gamma)
146 png_ptr->background_gamma = background_gamma;
158 int need_expand, double background_gamma)
161 need_expand, png_fixed(png_ptr, background_gamma, "png_set_background"));
375 png_ptr->background_gamma = png_ptr->colorspace.gamma; /* just in case */
1572 png_gamma_significant(png_ptr->background_gamma) != 0)
1630 g = png_reciprocal(png_ptr->background_gamma);
1631 gs = png_reciprocal2(png_ptr->background_gamma,
1739 g = png_reciprocal(png_ptr->background_gamma);
1740 gs = png_reciprocal2(png_ptr->background_gamma,
