Lines Matching refs:gamma
107 * according to the gamma encoding with no gamma encoding being interpreted as
349 /* Don't gamma correct - values get smashed */
771 volatile png_fixed_point gamma, chunk_insert * volatile insert,
847 * information about the gamma:
849 if (gamma == PNG_GAMMA_MAC_18)
850 gamma = 65909;
852 else if (gamma > 0 && gamma < 1000)
853 gamma = PNG_FP_1;
855 if (gamma > 0)
856 real_gamma = gamma;
916 if (gamma == PNG_DEFAULT_sRGB)
919 else if (gamma > 0) /* Else don't set color space information */
1688 png_fixed_point gamma = 0; /* not set */
1712 gamma = PNG_DEFAULT_sRGB;
1718 gamma = PNG_FP_1;
1724 gamma = PNG_GAMMA_MAC_18;
1933 int ret = write_png(&file_name, fp, color_type, bit_depth, gamma,
