From bdae48a791d6e5fec99fe2f89629ad3905a24c67 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

Signed-off-by: Manuel Barrio Linares <mbarriolinares@gmail.com>
---
 protocols/meson.build |  1 +
 src/server.c          | 41 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+)

diff --git a/protocols/meson.build b/protocols/meson.build
index 80269bec..8f368deb 100644
--- a/protocols/meson.build
+++ b/protocols/meson.build
@@ -25,6 +25,7 @@ server_protocols = [
 	wl_protocol_dir / 'staging/ext-workspace/ext-workspace-v1.xml',
 	wl_protocol_dir / 'staging/ext-image-capture-source/ext-image-capture-source-v1.xml',
 	wl_protocol_dir / 'staging/ext-image-copy-capture/ext-image-copy-capture-v1.xml',
+	wl_protocol_dir / 'staging/color-management/color-management-v1.xml',
 	'cosmic-workspace-unstable-v1.xml',
 	'wlr-layer-shell-unstable-v1.xml',
 	'wlr-input-inhibitor-unstable-v1.xml',
diff --git a/src/server.c b/src/server.c
index d4cc5a69..00c89cb2 100644
--- a/src/server.c
+++ b/src/server.c
@@ -8,6 +8,8 @@
 #include <wlr/backend/multi.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>
@@ -584,6 +586,45 @@ server_init(struct server *server)
 	 * | layer-shell         | background-layer | Yes        | 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,
+	    };
+	    const enum wp_color_manager_v1_transfer_function transfer_functions[] = {
+	        WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_SRGB,
+	        WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_ST2084_PQ,
+	        WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_EXT_LINEAR,
+	        WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_GAMMA22,
+	        WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_BT1886,
+	    };
+	    const enum wp_color_manager_v1_primaries primaries[] = {
+	        WP_COLOR_MANAGER_V1_PRIMARIES_SRGB,
+	        WP_COLOR_MANAGER_V1_PRIMARIES_BT2020,
+	    };
+
+	    struct wlr_color_manager_v1 *cm = wlr_color_manager_v1_create(
+	        server->wl_display, 1, &(struct wlr_color_manager_v1_options){
+	            .features = {
+	                .parametric = true,
+	                .set_mastering_display_primaries = true,
+	            },
+	            .render_intents = render_intents,
+	            .render_intents_len = sizeof(render_intents) / sizeof(render_intents[0]),
+	            .transfer_functions = transfer_functions,
+	            .transfer_functions_len = sizeof(transfer_functions) / sizeof(transfer_functions[0]),
+	            .primaries = primaries,
+	            .primaries_len = sizeof(primaries) / sizeof(primaries[0]),
+	        });
+	    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->view_tree_always_on_bottom = wlr_scene_tree_create(&server->scene->tree);
 	server->view_tree = wlr_scene_tree_create(&server->scene->tree);
 	server->view_tree_always_on_top = wlr_scene_tree_create(&server->scene->tree);