redshift: Move color settings into struct for period

Move color settings (temperature, gamma and brightness) into a
struct for each period (day, night). Change the interpolation
function to interpolate all values between these structs.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/redshift.h b/src/redshift.h
index 3a87877..7e38c42 100644
--- a/src/redshift.h
+++ b/src/redshift.h
@@ -24,6 +24,14 @@
 #include <stdlib.h>
 
 
+/* Color setting */
+typedef struct {
+	int temperature;
+	float gamma[3];
+	float brightness;
+} color_setting_t;
+
+
 /* Gamma adjustment method */
 typedef int gamma_method_init_func(void *state);
 typedef int gamma_method_start_func(void *state);