Lines Matching refs:screen_gamma
542 /* Transform the image from the file_gamma to the screen_gamma. We
543 * only do transformations on images where the file_gamma and screen_gamma
564 png_ptr->screen_gamma = (float)scrn_gamma;
912 && (fabs(png_ptr->screen_gamma * png_ptr->gamma - 1.0)
958 g = (png_ptr->screen_gamma);
964 gs = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma);
970 png_ptr->screen_gamma);
1053 g = (png_ptr->screen_gamma);
1059 gs = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma);
1065 png_ptr->screen_gamma);
2647 g = 1.0 / (png_ptr->background_gamma * png_ptr->screen_gamma);
4164 * the screen_gamma is known
4172 * the screen_gamma is different from the reciprocal of the
4178 * and screen_gamma are not 1.0, within the specified threshold.
4192 if (png_ptr->screen_gamma > .000001)
4193 g = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma);
4227 if (png_ptr->screen_gamma > 0.000001)
4228 g = 1.0 / png_ptr->screen_gamma;
4286 if (png_ptr->screen_gamma > .000001)
4287 g = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma);
4370 if (png_ptr->screen_gamma > 0.000001)
4371 g = 1.0 / png_ptr->screen_gamma;
