Support for wlr_drm_lease_v1 (#2083)

* Try to make DRM leasing work

* Attempt number two to make this work

* Fix logging and formatting

* Run uncrustify

src/api/wayfire/core.hpp

@@ -139,6 +139,7 @@ class compositor_core_t : public wf::object_base_t, public signal::provider_t
         wlr_presentation *presentation;
         wlr_primary_selection_v1_device_manager *primary_selection_v1;
         wlr_viewporter *viewporter;
+        wlr_drm_lease_v1_manager *drm_v1;
 
         wlr_xdg_foreign_registry *foreign_registry;
         wlr_xdg_foreign_v1 *foreign_v1;

src/api/wayfire/nonstd/wlroots-full.hpp

@@ -101,6 +101,7 @@ extern "C"
 #endif
 #include <wlr/types/wlr_gamma_control_v1.h>
 #include <wlr/types/wlr_xdg_output_v1.h>
+#include <wlr/types/wlr_drm_lease_v1.h>
 
 // Input
 #include <wlr/types/wlr_seat.h>

src/api/wayfire/nonstd/wlroots.hpp

@@ -37,6 +37,7 @@ extern "C"
     struct wlr_text_input_manager_v3;
     struct wlr_presentation;
     struct wlr_primary_selection_v1_device_manager;
+    struct wlr_drm_lease_v1_manager;
 
     struct wlr_xdg_foreign_v1;
     struct wlr_xdg_foreign_v2;

src/core/core-impl.hpp

@@ -76,6 +76,7 @@ class compositor_core_impl_t : public compositor_core_t
     wf::wl_listener_wrapper input_inhibit_deactivated;
     wf::wl_listener_wrapper pointer_constraint_added;
     wf::wl_listener_wrapper idle_inhibitor_created;
+    wf::wl_listener_wrapper drm_lease_request;
     std::shared_ptr<scene::root_node_t> scene_root;
 
     compositor_state_t state = compositor_state_t::UNKNOWN;

src/core/core.cpp

@@ -117,6 +117,23 @@ void wf::compositor_core_impl_t::init()
     protocols.export_dmabuf  = wlr_export_dmabuf_manager_v1_create(display);
     protocols.output_manager = wlr_xdg_output_manager_v1_create(display,
         output_layout->get_handle());
+    protocols.drm_v1 = wlr_drm_lease_v1_manager_create(display, backend);
+    drm_lease_request.set_callback([&] (void *data)
+    {
+        auto req = static_cast<wlr_drm_lease_request_v1*>(data);
+        struct wlr_drm_lease_v1 *lease = wlr_drm_lease_request_v1_grant(req);
+        if (!lease)
+        {
+            wlr_drm_lease_request_v1_reject(req);
+        }
+    });
+    if (protocols.drm_v1)
+    {
+        drm_lease_request.connect(&protocols.drm_v1->events.request);
+    } else
+    {
+        LOGE("Failed to create wlr_drm_lease_device_v1; VR will not be available!");
+    }
 
     /* input-inhibit setup */
     protocols.input_inhibit = wlr_input_inhibit_manager_create(display);

src/core/output-layout.cpp

@@ -1083,6 +1083,18 @@ class output_layout_t::impl
         LOGI("new output: ", output->name,
             " (\"", output->make, " ", output->model, " ", output->serial, "\")");
 
+        if (output->non_desktop)
+        {
+            LOGD("Non-desktop output ", output->name, " found");
+            if (get_core().protocols.drm_v1)
+            {
+                LOGD("Drm lease offered to ", output->name);
+                wlr_drm_lease_v1_manager_offer_output(get_core().protocols.drm_v1, output);
+            }
+
+            return;
+        }
+
         if (!wlr_output_init_render(output,
             get_core().allocator, get_core().renderer))
         {