From ea4181a96147b29062c49185c2cd53762daafc87 Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Sun, 26 Jan 2025 14:36:54 +0100
Subject: [PATCH] Add support for color-management-v1

References: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4962
---
 protocols/meson.build |  1 +
 sway/server.c         | 25 +++++++++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/protocols/meson.build b/protocols/meson.build
index 4d24e7071..3414119b8 100644
--- a/protocols/meson.build
+++ b/protocols/meson.build
@@ -9,6 +9,7 @@ wayland_scanner = find_program(
 protocols = [
 	wl_protocol_dir / 'stable/tablet/tablet-v2.xml',
 	wl_protocol_dir / 'stable/xdg-shell/xdg-shell.xml',
+	wl_protocol_dir / 'staging/color-management/color-management-v1.xml',
 	wl_protocol_dir / 'staging/content-type/content-type-v1.xml',
 	wl_protocol_dir / 'staging/cursor-shape/cursor-shape-v1.xml',
 	wl_protocol_dir / 'staging/ext-foreign-toplevel-list/ext-foreign-toplevel-list-v1.xml',
diff --git a/sway/server.c b/sway/server.c
index c7fc2a6df..039294646 100644
--- a/sway/server.c
+++ b/sway/server.c
@@ -10,6 +10,7 @@
 #include <wlr/render/allocator.h>
 #include <wlr/render/wlr_renderer.h>
 #include <wlr/types/wlr_alpha_modifier_v1.h>
+#include <wlr/types/wlr_color_management_v1.h>
 #include <wlr/types/wlr_compositor.h>
 #include <wlr/types/wlr_content_type_v1.h>
 #include <wlr/types/wlr_cursor_shape_v1.h>
@@ -411,6 +412,30 @@ bool server_init(struct sway_server *server) {
 	server->request_set_cursor_shape.notify = handle_request_set_cursor_shape;
 	wl_signal_add(&cursor_shape_manager->events.request_set_shape, &server->request_set_cursor_shape);
 
+	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,
+	};
+	const enum wp_color_manager_v1_primaries primaries[] = {
+		WP_COLOR_MANAGER_V1_PRIMARIES_SRGB,
+		WP_COLOR_MANAGER_V1_PRIMARIES_BT2020,
+	};
+	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]),
+	});
+
 	wl_list_init(&server->pending_launcher_ctxs);
 
 	// Avoid using "wayland-0" as display socket