From 3ec20044b5d435a801c4c79b5b7b09619a64cd9e Mon Sep 17 00:00:00 2001
From: Manuel Barrio Linares <mbarriolinares@gmail.com>
Date: Tue, 2 Dec 2025 17:44:54 -0300
Subject: [PATCH] server: add support for color-management-v1 and
 color-representation-manager-v1

---
 src/server.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/src/server.c b/src/server.c
index fd48efed..78aa26a7 100644
--- a/src/server.c
+++ b/src/server.c
@@ -9,6 +9,8 @@
 #include <wlr/config.h>
 #include <wlr/render/allocator.h>
 #include <wlr/types/wlr_alpha_modifier_v1.h>
+#include <wlr/types/wlr_color_management_v1.h>
+#include <wlr/types/wlr_color_representation_v1.h>
 #include <wlr/types/wlr_data_control_v1.h>
 #include <wlr/types/wlr_data_device.h>
 #include <wlr/types/wlr_drm.h>
@@ -285,6 +287,8 @@ allow_for_sandbox(const struct wlr_security_context_v1_state *security_state,
 		"xdg_wm_dialog_v1",
 		/* plus */
 		"wp_alpha_modifier_v1",
+		"wp_color_manager_v1",
+		"wp_color_representation_manager_v1",
 		"wp_linux_drm_syncobj_manager_v1",
 		"zxdg_exporter_v1",
 		"zxdg_exporter_v2",
@@ -592,6 +596,47 @@ server_init(void)
 	 * | output->layer_tree[0]              | background layer surfaces (e.g. swaybg)
 	 */
 
+	if (server.renderer->features.input_color_transform) {
+		const enum wp_color_manager_v1_render_intent render_intents[] = {
+			WP_COLOR_MANAGER_V1_RENDER_INTENT_PERCEPTUAL,
+		};
+		size_t transfer_functions_len = 0;
+		enum wp_color_manager_v1_transfer_function *transfer_functions =
+			wlr_color_manager_v1_transfer_function_list_from_renderer(
+				server.renderer, &transfer_functions_len);
+
+		size_t primaries_len = 0;
+		enum wp_color_manager_v1_primaries *primaries =
+			wlr_color_manager_v1_primaries_list_from_renderer(
+				server.renderer, &primaries_len);
+
+		struct wlr_color_manager_v1 *cm = wlr_color_manager_v1_create(
+			server.wl_display, 2, &(struct wlr_color_manager_v1_options){
+				.features = {
+					.parametric = true,
+					.set_mastering_display_primaries = true,
+				},
+				.render_intents = render_intents,
+				.render_intents_len = ARRAY_SIZE(render_intents),
+				.transfer_functions = transfer_functions,
+				.transfer_functions_len = transfer_functions_len,
+				.primaries = primaries,
+				.primaries_len = primaries_len,
+			});
+
+		free(transfer_functions);
+		free(primaries);
+
+		if (cm) {
+			wlr_scene_set_color_manager_v1(server.scene, cm);
+		} else {
+			wlr_log(WLR_ERROR, "unable to create color manager");
+		}
+	}
+
+	wlr_color_representation_manager_v1_create_with_renderer(
+		server.wl_display, 1, server.renderer);
+
 	server.workspace_tree = lab_wlr_scene_tree_create(&server.scene->tree);
 	server.xdg_popup_tree = lab_wlr_scene_tree_create(&server.scene->tree);
 #if HAVE_XWAYLAND