Add setting gamma ramps with the VidMode extension.

Allow selection of gamma setting method with program parameter (-m).
Fallback to VidMode if RANDR doesn't work.

1 files changed, 26 insertions, 0 deletions

diff --git a/src/vidmode.h b/src/vidmode.h
new file mode 100644
index 0000000..893fcc8
--- /dev/null
+++ b/src/vidmode.h
@@ -0,0 +1,26 @@
+/* vidmode.h -- X VidMode gamma adjustment header
+   This file is part of Redshift.
+
+   Redshift 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.
+
+   Redshift 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 Redshift.  If not, see <http://www.gnu.org/licenses/>.
+
+   Copyright (c) 2009  Jon Lund Steffensen <jonlst@gmail.com>
+*/
+
+#ifndef _REDSHIFT_VIDMODE_H
+#define _REDSHIFT_VIDMODE_H
+
+int vidmode_check_extension();
+int vidmode_set_temperature(int temp, float gamma[3]);
+
+#endif /* ! _REDSHIFT_VIDMODE_H */