113 lines
2.7 KiB
C
113 lines
2.7 KiB
C
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
#include <wlr/session.h>
|
|
#include <wlr/common/list.h>
|
|
|
|
#include "backend/drm/backend.h"
|
|
#include "backend/drm/drm.h"
|
|
#include "backend/drm/udev.h"
|
|
#include "common/log.h"
|
|
|
|
struct wlr_drm_backend *wlr_drm_backend_init(struct wlr_session *session,
|
|
struct wl_listener *add, struct wl_listener *rem, struct wl_listener *render)
|
|
{
|
|
struct wlr_drm_backend *backend = calloc(1, sizeof *backend);
|
|
if (!backend) {
|
|
wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
|
|
return NULL;
|
|
}
|
|
|
|
backend->session = session;
|
|
|
|
backend->displays = list_create();
|
|
if (!backend->displays) {
|
|
wlr_log(L_ERROR, "Failed to allocate list");
|
|
goto error_backend;
|
|
}
|
|
|
|
backend->event_loop = wl_event_loop_create();
|
|
if (!backend->event_loop) {
|
|
wlr_log(L_ERROR, "Failed to create event loop");
|
|
goto error_list;
|
|
}
|
|
|
|
if (!wlr_udev_init(backend)) {
|
|
wlr_log(L_ERROR, "Failed to start udev");
|
|
goto error_loop;
|
|
}
|
|
|
|
backend->fd = wlr_udev_find_gpu(&backend->udev, backend->session);
|
|
if (backend->fd == -1) {
|
|
wlr_log(L_ERROR, "Failed to open DRM device");
|
|
goto error_udev;
|
|
}
|
|
|
|
if (!wlr_drm_renderer_init(&backend->renderer, backend, backend->fd)) {
|
|
wlr_log(L_ERROR, "Failed to initialize renderer");
|
|
goto error_fd;
|
|
}
|
|
|
|
wl_signal_init(&backend->signals.display_add);
|
|
wl_signal_init(&backend->signals.display_rem);
|
|
wl_signal_init(&backend->signals.display_render);
|
|
|
|
if (add)
|
|
wl_signal_add(&backend->signals.display_add, add);
|
|
if (rem)
|
|
wl_signal_add(&backend->signals.display_rem, rem);
|
|
if (render)
|
|
wl_signal_add(&backend->signals.display_render, render);
|
|
|
|
wlr_drm_scan_connectors(backend);
|
|
|
|
return backend;
|
|
|
|
error_fd:
|
|
wlr_session_close_file(backend->session, backend->fd);
|
|
error_udev:
|
|
wlr_udev_free(&backend->udev);
|
|
error_loop:
|
|
wl_event_loop_destroy(backend->event_loop);
|
|
error_list:
|
|
list_free(backend->displays);
|
|
error_backend:
|
|
free(backend);
|
|
return NULL;
|
|
}
|
|
|
|
static void free_display(void *item)
|
|
{
|
|
struct wlr_drm_display *disp = item;
|
|
wlr_drm_display_free(disp, true);
|
|
free(disp);
|
|
}
|
|
|
|
void wlr_drm_backend_free(struct wlr_drm_backend *backend)
|
|
{
|
|
if (!backend)
|
|
return;
|
|
|
|
list_foreach(backend->displays, free_display);
|
|
|
|
wlr_drm_renderer_free(&backend->renderer);
|
|
wlr_udev_free(&backend->udev);
|
|
wlr_session_close_file(backend->session, backend->fd);
|
|
wlr_session_finish(backend->session);
|
|
|
|
wl_event_source_remove(backend->event_src.drm);
|
|
wl_event_source_remove(backend->event_src.udev);
|
|
wl_event_loop_destroy(backend->event_loop);
|
|
|
|
list_free(backend->displays);
|
|
free(backend);
|
|
}
|
|
|
|
struct wl_event_loop *wlr_drm_backend_get_event_loop(struct wlr_drm_backend *backend)
|
|
{
|
|
return backend->event_loop;
|
|
}
|