1 files changed, 27 insertions, 0 deletions
diff --git a/libgamma_quartz_cg_crtc_set_gamma_rampsf.c b/libgamma_quartz_cg_crtc_set_gamma_rampsf.c
new file mode 100644
index 0000000..5cde1eb
--- /dev/null
+++ b/libgamma_quartz_cg_crtc_set_gamma_rampsf.c
@@ -0,0 +1,27 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+/**
+ * Set the gamma ramps for a CRTC, `float` version
+ * 
+ * @param   this   The CRTC state
+ * @param   ramps  The gamma ramps to apply
+ * @return         Zero on success, otherwise (negative) the value of an
+ *                 error identifier provided by this library
+ */
+int
+libgamma_quartz_cg_crtc_set_gamma_rampsf(libgamma_crtc_state_t *restrict this, const libgamma_gamma_rampsf_t *restrict ramps)
+{
+	CGDirectDisplayID *restrict crtcs = this->partition->data;
+	CGDirectDisplayID crtc_id = crtcs[this->crtc];
+	CGError r;
+#ifdef DEBUG
+	/* Gamma ramps sizes are identical but not fixed */
+	if (ramps->red_size != ramps->green_size || ramps->red_size != ramps->blue_size)
+		return LIBGAMMA_MIXED_GAMMA_RAMP_SIZE;
+#endif
+	/* Apply gamma ramps */
+	r = CGSetDisplayTransferByTable(crtc_id, (uint32_t)ramps->red_size, ramps->red, ramps->green, ramps->blue);
+	return r == kCGErrorSuccess ? 0 : LIBGAMMA_GAMMA_RAMP_WRITE_FAILED;
+}