From cc1229e75e0c0c2cf5ae6d67bc7411c2631deb86 Mon Sep 17 00:00:00 2001
From: Vincent Vanlaer <vincent.vanlaer@skynet.be>
Date: Thu, 1 Feb 2018 20:27:35 +0100
Subject: Add atomic gamma setting

---
 include/backend/drm/drm.h        | 5 ++++-
 include/backend/drm/iface.h      | 4 ++++
 include/backend/drm/properties.h | 3 ++-
 3 files changed, 10 insertions(+), 2 deletions(-)

(limited to 'include/backend/drm')

diff --git a/include/backend/drm/drm.h b/include/backend/drm/drm.h
index af472ede..782764c8 100644
--- a/include/backend/drm/drm.h
+++ b/include/backend/drm/drm.h
@@ -39,7 +39,10 @@ struct wlr_drm_plane {
 
 struct wlr_drm_crtc {
 	uint32_t id;
-	uint32_t mode_id; // atomic modesetting only
+
+	// Atomic modesetting only
+	uint32_t mode_id;
+	uint32_t gamma_lut;
 	drmModeAtomicReq *atomic;
 
 	union {
diff --git a/include/backend/drm/iface.h b/include/backend/drm/iface.h
index 4a5d2e9d..228b313a 100644
--- a/include/backend/drm/iface.h
+++ b/include/backend/drm/iface.h
@@ -27,6 +27,10 @@ struct wlr_drm_interface {
 	// Move the cursor on crtc
 	bool (*crtc_move_cursor)(struct wlr_drm_backend *drm,
 		struct wlr_drm_crtc *crtc, int x, int y);
+	// Set the gamma lut on crtc
+	bool (*crtc_set_gamma)(struct wlr_drm_backend *drm,
+			struct wlr_drm_crtc *crtc, uint16_t *r, uint16_t *g, uint16_t *b,
+			uint32_t size);
 };
 
 extern const struct wlr_drm_interface atomic_iface;
diff --git a/include/backend/drm/properties.h b/include/backend/drm/properties.h
index 7de386ea..119d24c3 100644
--- a/include/backend/drm/properties.h
+++ b/include/backend/drm/properties.h
@@ -32,8 +32,9 @@ union wlr_drm_crtc_props {
 
 		uint32_t active;
 		uint32_t mode_id;
+		uint32_t gamma_lut;
 	};
-	uint32_t props[4];
+	uint32_t props[5];
 };
 
 union wlr_drm_plane_props {
-- 
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