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			131 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			131 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
From 2e1123af5c7ae4354ec997d59cb36143fb2fdd27 Mon Sep 17 00:00:00 2001
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From: wochap <gean.marroquin@gmail.com>
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Date: Mon, 8 Apr 2024 10:23:40 -0500
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Subject: [PATCH] feat: implement headless backend
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---
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 config.def.h |  1 +
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 dwl.c        | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++
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 2 files changed, 59 insertions(+)
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diff --git a/config.def.h b/config.def.h
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index db0babc..f0a2080 100644
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--- a/config.def.h
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+++ b/config.def.h
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@@ -141,6 +141,7 @@ static const Key keys[] = {
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 	{ MODKEY,                    XKB_KEY_period,     focusmon,       {.i = WLR_DIRECTION_RIGHT} },
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 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_less,       tagmon,         {.i = WLR_DIRECTION_LEFT} },
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 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_greater,    tagmon,         {.i = WLR_DIRECTION_RIGHT} },
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+	{ MODKEY|WLR_MODIFIER_CTRL|WLR_MODIFIER_SHIFT, XKB_KEY_M, create_output, {0} },
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 	TAGKEYS(          XKB_KEY_1, XKB_KEY_exclam,                     0),
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 	TAGKEYS(          XKB_KEY_2, XKB_KEY_at,                         1),
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 	TAGKEYS(          XKB_KEY_3, XKB_KEY_numbersign,                 2),
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diff --git a/dwl.c b/dwl.c
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index ef27a1d..79a63b0 100644
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--- a/dwl.c
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+++ b/dwl.c
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@@ -12,7 +12,10 @@
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 #include <unistd.h>
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 #include <wayland-server-core.h>
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 #include <wlr/backend.h>
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+#include <wlr/backend/headless.h>
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 #include <wlr/backend/libinput.h>
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+#include <wlr/backend/multi.h>
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+#include <wlr/backend/wayland.h>
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 #include <wlr/render/allocator.h>
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 #include <wlr/render/wlr_renderer.h>
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 #include <wlr/types/wlr_compositor.h>
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@@ -58,6 +61,9 @@
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 #include <xcb/xcb.h>
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 #include <xcb/xcb_icccm.h>
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 #endif
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+#if WLR_HAS_X11_BACKEND
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+#include <wlr/backend/x11.h>
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+#endif
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 #include "util.h"
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@@ -327,6 +333,8 @@ static Monitor *xytomon(double x, double y);
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 static void xytonode(double x, double y, struct wlr_surface **psurface,
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 		Client **pc, LayerSurface **pl, double *nx, double *ny);
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 static void zoom(const Arg *arg);
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+static void _create_output(struct wlr_backend *backend, void *data);
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+static void create_output(const Arg *arg);
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 /* variables */
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 static const char broken[] = "broken";
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@@ -335,6 +343,7 @@ static int locked;
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 static void *exclusive_focus;
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 static struct wl_display *dpy;
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 static struct wlr_backend *backend;
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+static struct wlr_backend *headless_backend;
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 static struct wlr_scene *scene;
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 static struct wlr_scene_tree *layers[NUM_LAYERS];
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 static struct wlr_scene_tree *drag_icon;
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@@ -2321,6 +2330,16 @@ setup(void)
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 	cursor_shape_mgr = wlr_cursor_shape_manager_v1_create(dpy, 1);
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 	LISTEN_STATIC(&cursor_shape_mgr->events.request_set_shape, setcursorshape);
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+	/**
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+	 * Initialize headless backend
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+	 */ 
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+	headless_backend = wlr_headless_backend_create(dpy);
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+	if (!headless_backend) {
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+		die("Failed to create secondary headless backend");
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+	} else {
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+		wlr_multi_backend_add(backend, headless_backend);
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+	}
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+
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 	/*
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 	 * Configures a seat, which is a single "seat" at which a user sits and
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 	 * operates the computer. This conceptually includes up to one keyboard,
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@@ -2746,6 +2765,45 @@ zoom(const Arg *arg)
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 	arrange(selmon);
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 }
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+void 
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+_create_output(struct wlr_backend *_backend, void *data) 
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+{
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+	bool *done = data;
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+	if (*done) {
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+		return;
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+	}
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+
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+	if (wlr_backend_is_wl(_backend)) {
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+		wlr_wl_output_create(_backend);
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+		*done = true;
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+	} else if (wlr_backend_is_headless(_backend)) {
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+		wlr_headless_add_output(_backend, 1920, 1080);
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+		*done = true;
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+	}
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+#if WLR_HAS_X11_BACKEND
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+	else if (wlr_backend_is_x11(backend)) {
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+		wlr_x11_output_create(backend);
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+		*done = true;
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+	}
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+#endif
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+}
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+
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+void
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+create_output(const Arg *arg)
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+{
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+	bool done = false;
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+
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+	if (!wlr_backend_is_multi(backend)) {
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+		die("Expected a multi backend");
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+	}
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+
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+	wlr_multi_for_each_backend(backend, _create_output, &done);
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+
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+	if (!done) {
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+		die("Can only create outputs for Wayland, X11 or headless backends");
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+	}
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+}
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+
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 #ifdef XWAYLAND
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 void
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 activatex11(struct wl_listener *listener, void *data)
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-- 
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2.43.2
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