mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-11-05 05:05:57 +01:00
111 lines
2.8 KiB
C
111 lines
2.8 KiB
C
#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <wayland-server.h>
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#include <wlr/session.h>
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#include <wlr/common/list.h>
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#include "backend.h"
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#include "backend/drm/backend.h"
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#include "backend/drm/drm.h"
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#include "backend/drm/udev.h"
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#include "common/log.h"
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static bool wlr_drm_backend_init(struct wlr_backend_state *state) {
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wlr_drm_scan_connectors(state);
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return true;
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}
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static void wlr_drm_backend_destroy(struct wlr_backend_state *state) {
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if (!state) {
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return;
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}
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// TODO: free outputs in shared backend code
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wlr_drm_renderer_free(&state->renderer);
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wlr_udev_free(&state->udev);
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wlr_session_close_file(state->session, state->fd);
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wlr_session_finish(state->session);
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wl_event_source_remove(state->drm_event);
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free(state);
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}
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static struct wlr_backend_impl backend_impl = {
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.init = wlr_drm_backend_init,
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.destroy = wlr_drm_backend_destroy
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};
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struct wlr_backend *wlr_drm_backend_create(struct wl_display *display,
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struct wlr_session *session) {
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struct wlr_backend_state *state = calloc(1, sizeof(struct wlr_backend_state));
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if (!state) {
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wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
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return NULL;
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}
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struct wlr_backend *backend = wlr_backend_create(&backend_impl, state);
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if (!backend) {
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wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
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return NULL;
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}
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state->backend = backend;
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state->session = session;
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state->outputs = list_create();
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if (!state->outputs) {
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wlr_log(L_ERROR, "Failed to allocate list");
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goto error_backend;
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}
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if (!wlr_udev_init(display, &state->udev)) {
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wlr_log(L_ERROR, "Failed to start udev");
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goto error_list;
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}
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state->fd = wlr_udev_find_gpu(&state->udev, state->session);
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if (state->fd == -1) {
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wlr_log(L_ERROR, "Failed to open DRM device");
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goto error_udev;
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}
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struct wl_event_loop *event_loop = wl_display_get_event_loop(display);
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state->drm_event = wl_event_loop_add_fd(event_loop, state->fd,
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WL_EVENT_READABLE, wlr_drm_event, NULL);
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if (!state->drm_event) {
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wlr_log(L_ERROR, "Failed to create DRM event source");
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goto error_fd;
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}
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// TODO: what is the difference between the per-output renderer and this
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// one?
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if (!wlr_drm_renderer_init(&state->renderer, state->fd)) {
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wlr_log(L_ERROR, "Failed to initialize renderer");
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goto error_event;
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}
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return backend;
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error_event:
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wl_event_source_remove(state->drm_event);
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error_fd:
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wlr_session_close_file(state->session, state->fd);
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error_udev:
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wlr_udev_free(&state->udev);
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error_list:
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list_free(state->outputs);
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error_backend:
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free(state);
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free(backend);
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return NULL;
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}
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void wlr_drm_backend_dpms(struct wlr_backend *backend, bool screen_on) {
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struct wlr_backend_state *state = backend->state;
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for (size_t i = 0; i < state->outputs->length; ++i) {
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struct wlr_output_state *output = state->outputs->items[i];
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wlr_drm_output_dpms(state->fd, output, screen_on);
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}
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}
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