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drm_lease: introduce new rebased patch

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Alex Denes 2025-11-17 07:25:28 +00:00
parent 973df560ec
commit 23fa3a28e3
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2 changed files with 122 additions and 0 deletions
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12
patches/drm_lease/README.md Normal file
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@ -0,0 +1,12 @@
### Description
Adds support for drm-lease-v1 for embedded displays such as VR headsets
### Download
- [git branch](/caskd/dwl/src/branch/patches/drm_lease)
- [main 2025-06-18](/dwl/dwl-patches/raw/branch/main/patches/drm_lease/drm_lease.patch)
### Authors
- [caskd](https://codeberg.org/caskd)
caskd@redxen.eu
caskd at [Libera IRC dwl channel](https://web.libera.chat/?channels=#dwl)
- Micah Gorrell
micah.gorrell@venafi.com

110
patches/drm_lease/drm_lease.patch Normal file
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@ -0,0 +1,110 @@
From be620ef43f6a37bc70331d6db69a3d0f60d2bb0d Mon Sep 17 00:00:00 2001
From: Micah Gorrell <micah.gorrell@venafi.com>
Date: Fri, 26 May 2023 08:17:20 -0600
Subject: [PATCH] Implemented support for the DRM lease protocol, as needed to
use devices such as VR headsets
---
dwl.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/dwl.c b/dwl.c
index 12f441e..6864f18 100644
--- a/dwl.c
+++ b/dwl.c
@@ -23,6 +23,7 @@
#include <wlr/types/wlr_data_control_v1.h>
#include <wlr/types/wlr_data_device.h>
#include <wlr/types/wlr_drm.h>
+#include <wlr/types/wlr_drm_lease_v1.h>
#include <wlr/types/wlr_export_dmabuf_v1.h>
#include <wlr/types/wlr_fractional_scale_v1.h>
#include <wlr/types/wlr_gamma_control_v1.h>
@@ -315,6 +316,7 @@ static void powermgrsetmode(struct wl_listener *listener, void *data);
static void quit(const Arg *arg);
static void rendermon(struct wl_listener *listener, void *data);
static void requestdecorationmode(struct wl_listener *listener, void *data);
+static void requestdrmlease(struct wl_listener *listener, void *data);
static void requeststartdrag(struct wl_listener *listener, void *data);
static void requestmonstate(struct wl_listener *listener, void *data);
static void resize(Client *c, struct wlr_box geo, int interact);
@@ -376,6 +378,7 @@ static struct wl_list clients; /* tiling order */
static struct wl_list fstack; /* focus order */
static struct wlr_idle_notifier_v1 *idle_notifier;
static struct wlr_idle_inhibit_manager_v1 *idle_inhibit_mgr;
+static struct wlr_drm_lease_v1_manager *drm_lease_manager;
static struct wlr_layer_shell_v1 *layer_shell;
static struct wlr_output_manager_v1 *output_mgr;
static struct wlr_virtual_keyboard_manager_v1 *virtual_keyboard_mgr;
@@ -435,6 +438,7 @@ static struct wl_listener request_set_cursor_shape = {.notify = setcursorshape};
static struct wl_listener request_start_drag = {.notify = requeststartdrag};
static struct wl_listener start_drag = {.notify = startdrag};
static struct wl_listener new_session_lock = {.notify = locksession};
+static struct wl_listener drm_lease_request = {.notify = requestdrmlease};
#ifdef XWAYLAND
static void activatex11(struct wl_listener *listener, void *data);
@@ -782,6 +786,9 @@ cleanuplisteners(void)
wl_list_remove(&request_start_drag.link);
wl_list_remove(&start_drag.link);
wl_list_remove(&new_session_lock.link);
+ if (drm_lease_manager) {
+ wl_list_remove(&drm_lease_request.link);
+ }
#ifdef XWAYLAND
wl_list_remove(&new_xwayland_surface.link);
wl_list_remove(&xwayland_ready.link);
@@ -1049,6 +1056,14 @@ createmon(struct wl_listener *listener, void *data)
if (!wlr_output_init_render(wlr_output, alloc, drw))
return;
+ if (wlr_output->non_desktop) {
+ if (drm_lease_manager) {
+ wlr_drm_lease_v1_manager_offer_output(drm_lease_manager, wlr_output);
+ }
+
+ return;
+ }
+
m = wlr_output->data = ecalloc(1, sizeof(*m));
m->wlr_output = wlr_output;
@@ -2181,6 +2196,16 @@ requestdecorationmode(struct wl_listener *listener, void *data)
WLR_XDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE);
}
+static void requestdrmlease(struct wl_listener *listener, void *data) {
+ struct wlr_drm_lease_request_v1 *req = data;
+ struct wlr_drm_lease_v1 *lease = wlr_drm_lease_request_v1_grant(req);
+
+ if (!lease) {
+ fprintf(stderr, "Failed to grant lease request");
+ wlr_drm_lease_request_v1_reject(req);
+ }
+}
+
void
requeststartdrag(struct wl_listener *listener, void *data)
{
@@ -2645,10 +2670,18 @@ setup(void)
wl_signal_add(&output_mgr->events.apply, &output_mgr_apply);
wl_signal_add(&output_mgr->events.test, &output_mgr_test);
+ drm_lease_manager = wlr_drm_lease_v1_manager_create(dpy, backend);
+ if (drm_lease_manager) {
+ wl_signal_add(&drm_lease_manager->events.request, &drm_lease_request);
+ } else {
+ fprintf(stderr, "Failed to create wlr_drm_lease_device_v1; VR will not be available\n");
+ }
+
/* Make sure XWayland clients don't connect to the parent X server,
* e.g when running in the x11 backend or the wayland backend and the
* compositor has Xwayland support */
unsetenv("DISPLAY");
+
#ifdef XWAYLAND
/*
* Initialise the XWayland X server.
--
2.51.1