Lines Matching full:gamma
106 png_warning(png_ptr, "Application must supply a known background gamma");
547 * We will turn off gamma transformation later if no semitransparent entries
563 png_ptr->gamma = (float)file_gamma;
912 && (fabs(png_ptr->screen_gamma * png_ptr->gamma - 1.0)
927 png_ptr->gamma != 0.0)
963 g = 1.0 / (png_ptr->gamma);
964 gs = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma);
1035 * has just reduced background composition and gamma correction
1058 g = 1.0 / (png_ptr->gamma);
1059 gs = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma);
1118 /* Done the gamma correction. */
1127 /* No GAMMA transformation */
1244 info_ptr->gamma = png_ptr->gamma;
2565 * paletted. Most useful for gamma correction and simplification
2804 * "background" is already in the screen gamma, while "background_1" is
2805 * at a gamma of 1.0. Paletted files have already been taken care of.
3021 /* Background is already in screen gamma */
3112 /* Background is already in screen gamma */
3180 /* Background is already in screen gamma */
3247 /* Background is already in screen gamma */
3325 /* Background is already in screen gamma */
3406 /* Background is already in screen gamma */
3498 /* Gamma correct the image, avoiding the alpha channel. Make sure
4149 /* We build the 8- or 16-bit gamma tables here. Note that for 16-bit
4155 * the gamma tables. Maybe we will implement that here someday.
4193 g = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma);
4212 g = 1.0 / (png_ptr->gamma);
4231 g = png_ptr->gamma; /* Probably doing rgb_to_gray */
4287 g = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma);
4350 g = 1.0 / (png_ptr->gamma);
4374 g = png_ptr->gamma; /* Probably doing rgb_to_gray */
