/** * Copyright © 2014 Mattias Andrée (maandree@member.fsf.org) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef BLUESHIFT_QUARTZ_C_H #define BLUESHIFT_QUARTZ_C_H #include <stdio.h> #include <stdlib.h> #ifdef FAKE_QUARTZ # include "fake_quartz.h" #else # include <CoreGraphics/CGDirectDisplay.h> # include <CoreGraphics/CGError.h> #endif #ifndef FAKE_QUARTZ # define close_fake_quartz() /* Do nothing */ #endif /** * Start stage of colour curve control * * @return Zero on success */ int blueshift_quartz_open(void); /** * Get the number of CRTC:s on the system * * @return The number of CRTC:s on the system */ int blueshift_quartz_crtc_count(void); /** * Gets the current colour curves * * @param use_crtc The CRTC to use * @return {the size of the each curve, *the red curve, * *the green curve, *the blue curve}, * needs to be free:d. `NULL` on error. */ uint16_t* blueshift_quartz_read(int use_crtc); /** * Apply stage of colour curve control * * @param use_crtc The CRTC to use, -1 for all * @param r_curve The red colour curve * @param g_curve The green colour curve * @param b_curve The blue colour curve * @return Zero on success */ int blueshift_quartz_apply(int use_crtc, float* r_curves, float* g_curves, float* b_curves); /** * Resource freeing stage of colour curve control */ void blueshift_quartz_close(void); /** * Restore all gamma curves (on each and every CRTC on the system) * to the settings on ColorSync */ void blueshift_quartz_restore(void); #endif