mirror of
https://gitlab.freedesktop.org/wlroots/wlroots.git
synced 2024-11-22 07:02:28 +00:00
104 lines
2.6 KiB
C
104 lines
2.6 KiB
C
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <wayland-server.h>
|
|
|
|
#include <wlr/session.h>
|
|
#include <wlr/common/list.h>
|
|
|
|
#include "backend.h"
|
|
#include "backend/drm/backend.h"
|
|
#include "backend/drm/drm.h"
|
|
#include "backend/drm/udev.h"
|
|
#include "common/log.h"
|
|
|
|
static bool wlr_drm_backend_init(struct wlr_backend_state *state) {
|
|
wlr_drm_scan_connectors(state);
|
|
return true;
|
|
}
|
|
|
|
static void wlr_drm_backend_destroy(struct wlr_backend_state *state) {
|
|
if (!state) {
|
|
return;
|
|
}
|
|
// TODO: free outputs in shared backend code
|
|
wlr_drm_renderer_free(&state->renderer);
|
|
wlr_udev_free(&state->udev);
|
|
wlr_session_close_file(state->session, state->fd);
|
|
wlr_session_finish(state->session);
|
|
wl_event_source_remove(state->drm_event);
|
|
free(state);
|
|
}
|
|
|
|
static struct wlr_backend_impl backend_impl = {
|
|
.init = wlr_drm_backend_init,
|
|
.destroy = wlr_drm_backend_destroy
|
|
};
|
|
|
|
struct wlr_backend *wlr_drm_backend_create(struct wl_display *display,
|
|
struct wlr_session *session) {
|
|
struct wlr_backend_state *state = calloc(1, sizeof(struct wlr_backend_state));
|
|
if (!state) {
|
|
wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
|
|
return NULL;
|
|
}
|
|
|
|
struct wlr_backend *backend = wlr_backend_create(&backend_impl, state);
|
|
if (!backend) {
|
|
wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
|
|
return NULL;
|
|
}
|
|
|
|
state->backend = backend;
|
|
state->session = session;
|
|
state->outputs = list_create();
|
|
if (!state->outputs) {
|
|
wlr_log(L_ERROR, "Failed to allocate list");
|
|
goto error_backend;
|
|
}
|
|
|
|
if (!wlr_udev_init(display, &state->udev)) {
|
|
wlr_log(L_ERROR, "Failed to start udev");
|
|
goto error_list;
|
|
}
|
|
|
|
state->fd = wlr_udev_find_gpu(&state->udev, state->session);
|
|
if (state->fd == -1) {
|
|
wlr_log(L_ERROR, "Failed to open DRM device");
|
|
goto error_udev;
|
|
}
|
|
|
|
struct wl_event_loop *event_loop = wl_display_get_event_loop(display);
|
|
|
|
state->drm_event = wl_event_loop_add_fd(event_loop, state->fd,
|
|
WL_EVENT_READABLE, wlr_drm_event, NULL);
|
|
if (!state->drm_event) {
|
|
wlr_log(L_ERROR, "Failed to create DRM event source");
|
|
goto error_fd;
|
|
}
|
|
|
|
// TODO: what is the difference between the per-output renderer and this
|
|
// one?
|
|
if (!wlr_drm_renderer_init(&state->renderer, state->fd)) {
|
|
wlr_log(L_ERROR, "Failed to initialize renderer");
|
|
goto error_event;
|
|
}
|
|
|
|
return backend;
|
|
|
|
error_event:
|
|
wl_event_source_remove(state->drm_event);
|
|
error_fd:
|
|
wlr_session_close_file(state->session, state->fd);
|
|
error_udev:
|
|
wlr_udev_free(&state->udev);
|
|
error_list:
|
|
list_free(state->outputs);
|
|
error_backend:
|
|
free(state);
|
|
free(backend);
|
|
return NULL;
|
|
}
|