mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-11-02 03:45:58 +01:00
7ec5bf6b10
This new functions cleans up the common backend state. While this currently only emits the destroy signal, this will also clean up the renderer and allocator in upcoming patches.
256 lines
7 KiB
C
256 lines
7 KiB
C
#include <assert.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <wayland-server-core.h>
|
|
#include <wlr/backend/interface.h>
|
|
#include <wlr/backend/session.h>
|
|
#include <wlr/interfaces/wlr_output.h>
|
|
#include <wlr/types/wlr_list.h>
|
|
#include <wlr/util/log.h>
|
|
#include <xf86drm.h>
|
|
#include "backend/drm/drm.h"
|
|
#include "types/wlr_buffer.h"
|
|
#include "util/signal.h"
|
|
|
|
struct wlr_drm_backend *get_drm_backend_from_backend(
|
|
struct wlr_backend *wlr_backend) {
|
|
assert(wlr_backend_is_drm(wlr_backend));
|
|
return (struct wlr_drm_backend *)wlr_backend;
|
|
}
|
|
|
|
static bool backend_start(struct wlr_backend *backend) {
|
|
struct wlr_drm_backend *drm = get_drm_backend_from_backend(backend);
|
|
scan_drm_connectors(drm);
|
|
return true;
|
|
}
|
|
|
|
static void backend_destroy(struct wlr_backend *backend) {
|
|
if (!backend) {
|
|
return;
|
|
}
|
|
|
|
struct wlr_drm_backend *drm = get_drm_backend_from_backend(backend);
|
|
|
|
restore_drm_outputs(drm);
|
|
|
|
struct wlr_drm_connector *conn, *next;
|
|
wl_list_for_each_safe(conn, next, &drm->outputs, link) {
|
|
destroy_drm_connector(conn);
|
|
}
|
|
|
|
wlr_backend_finish(backend);
|
|
|
|
struct wlr_drm_fb *fb, *fb_tmp;
|
|
wl_list_for_each_safe(fb, fb_tmp, &drm->fbs, link) {
|
|
drm_fb_destroy(fb);
|
|
}
|
|
|
|
wl_list_remove(&drm->display_destroy.link);
|
|
wl_list_remove(&drm->session_destroy.link);
|
|
wl_list_remove(&drm->session_active.link);
|
|
wl_list_remove(&drm->parent_destroy.link);
|
|
wl_list_remove(&drm->dev_change.link);
|
|
wl_list_remove(&drm->dev_remove.link);
|
|
|
|
finish_drm_resources(drm);
|
|
finish_drm_renderer(&drm->renderer);
|
|
|
|
free(drm->name);
|
|
wlr_session_close_file(drm->session, drm->dev);
|
|
wl_event_source_remove(drm->drm_event);
|
|
free(drm);
|
|
}
|
|
|
|
static struct wlr_renderer *backend_get_renderer(
|
|
struct wlr_backend *backend) {
|
|
struct wlr_drm_backend *drm = get_drm_backend_from_backend(backend);
|
|
|
|
if (drm->parent) {
|
|
return drm->parent->renderer.wlr_rend;
|
|
} else {
|
|
return drm->renderer.wlr_rend;
|
|
}
|
|
}
|
|
|
|
static clockid_t backend_get_presentation_clock(struct wlr_backend *backend) {
|
|
struct wlr_drm_backend *drm = get_drm_backend_from_backend(backend);
|
|
return drm->clock;
|
|
}
|
|
|
|
static int backend_get_drm_fd(struct wlr_backend *backend) {
|
|
struct wlr_drm_backend *drm = get_drm_backend_from_backend(backend);
|
|
|
|
if (drm->parent) {
|
|
return drm->parent->fd;
|
|
} else {
|
|
return drm->fd;
|
|
}
|
|
}
|
|
|
|
static uint32_t backend_get_buffer_caps(struct wlr_backend *backend) {
|
|
return WLR_BUFFER_CAP_DMABUF;
|
|
}
|
|
|
|
static const struct wlr_backend_impl backend_impl = {
|
|
.start = backend_start,
|
|
.destroy = backend_destroy,
|
|
.get_renderer = backend_get_renderer,
|
|
.get_presentation_clock = backend_get_presentation_clock,
|
|
.get_drm_fd = backend_get_drm_fd,
|
|
.get_buffer_caps = backend_get_buffer_caps,
|
|
};
|
|
|
|
bool wlr_backend_is_drm(struct wlr_backend *b) {
|
|
return b->impl == &backend_impl;
|
|
}
|
|
|
|
static void handle_session_active(struct wl_listener *listener, void *data) {
|
|
struct wlr_drm_backend *drm =
|
|
wl_container_of(listener, drm, session_active);
|
|
struct wlr_session *session = drm->session;
|
|
|
|
if (session->active) {
|
|
wlr_log(WLR_INFO, "DRM fd resumed");
|
|
scan_drm_connectors(drm);
|
|
|
|
struct wlr_drm_connector *conn;
|
|
wl_list_for_each(conn, &drm->outputs, link) {
|
|
struct wlr_output_mode *mode = NULL;
|
|
if (conn->output.enabled && conn->output.current_mode != NULL) {
|
|
mode = conn->output.current_mode;
|
|
}
|
|
struct wlr_output_state state = {
|
|
.committed = WLR_OUTPUT_STATE_MODE | WLR_OUTPUT_STATE_ENABLED,
|
|
.enabled = mode != NULL,
|
|
.mode_type = WLR_OUTPUT_STATE_MODE_FIXED,
|
|
.mode = mode,
|
|
};
|
|
drm_connector_commit_state(conn, &state);
|
|
}
|
|
} else {
|
|
wlr_log(WLR_INFO, "DRM fd paused");
|
|
}
|
|
}
|
|
|
|
static void handle_dev_change(struct wl_listener *listener, void *data) {
|
|
struct wlr_drm_backend *drm = wl_container_of(listener, drm, dev_change);
|
|
|
|
if (!drm->session->active) {
|
|
return;
|
|
}
|
|
|
|
wlr_log(WLR_DEBUG, "%s invalidated", drm->name);
|
|
scan_drm_connectors(drm);
|
|
}
|
|
|
|
static void handle_dev_remove(struct wl_listener *listener, void *data) {
|
|
struct wlr_drm_backend *drm = wl_container_of(listener, drm, dev_remove);
|
|
|
|
wlr_log(WLR_INFO, "Destroying DRM backend for %s", drm->name);
|
|
backend_destroy(&drm->backend);
|
|
}
|
|
|
|
static void handle_session_destroy(struct wl_listener *listener, void *data) {
|
|
struct wlr_drm_backend *drm =
|
|
wl_container_of(listener, drm, session_destroy);
|
|
backend_destroy(&drm->backend);
|
|
}
|
|
|
|
static void handle_display_destroy(struct wl_listener *listener, void *data) {
|
|
struct wlr_drm_backend *drm =
|
|
wl_container_of(listener, drm, display_destroy);
|
|
backend_destroy(&drm->backend);
|
|
}
|
|
|
|
static void handle_parent_destroy(struct wl_listener *listener, void *data) {
|
|
struct wlr_drm_backend *drm =
|
|
wl_container_of(listener, drm, parent_destroy);
|
|
backend_destroy(&drm->backend);
|
|
}
|
|
|
|
struct wlr_backend *wlr_drm_backend_create(struct wl_display *display,
|
|
struct wlr_session *session, struct wlr_device *dev,
|
|
struct wlr_backend *parent) {
|
|
assert(display && session && dev);
|
|
assert(!parent || wlr_backend_is_drm(parent));
|
|
|
|
char *name = drmGetDeviceNameFromFd2(dev->fd);
|
|
drmVersion *version = drmGetVersion(dev->fd);
|
|
wlr_log(WLR_INFO, "Initializing DRM backend for %s (%s)", name, version->name);
|
|
drmFreeVersion(version);
|
|
|
|
struct wlr_drm_backend *drm = calloc(1, sizeof(struct wlr_drm_backend));
|
|
if (!drm) {
|
|
wlr_log_errno(WLR_ERROR, "Allocation failed");
|
|
return NULL;
|
|
}
|
|
wlr_backend_init(&drm->backend, &backend_impl);
|
|
|
|
drm->session = session;
|
|
wl_list_init(&drm->fbs);
|
|
wl_list_init(&drm->outputs);
|
|
|
|
drm->dev = dev;
|
|
drm->fd = dev->fd;
|
|
drm->name = name;
|
|
|
|
if (parent != NULL) {
|
|
drm->parent = get_drm_backend_from_backend(parent);
|
|
|
|
drm->parent_destroy.notify = handle_parent_destroy;
|
|
wl_signal_add(&parent->events.destroy, &drm->parent_destroy);
|
|
} else {
|
|
wl_list_init(&drm->parent_destroy.link);
|
|
}
|
|
|
|
drm->dev_change.notify = handle_dev_change;
|
|
wl_signal_add(&dev->events.change, &drm->dev_change);
|
|
|
|
drm->dev_remove.notify = handle_dev_remove;
|
|
wl_signal_add(&dev->events.remove, &drm->dev_remove);
|
|
|
|
drm->display = display;
|
|
|
|
struct wl_event_loop *event_loop = wl_display_get_event_loop(display);
|
|
drm->drm_event = wl_event_loop_add_fd(event_loop, drm->fd,
|
|
WL_EVENT_READABLE, handle_drm_event, NULL);
|
|
if (!drm->drm_event) {
|
|
wlr_log(WLR_ERROR, "Failed to create DRM event source");
|
|
goto error_fd;
|
|
}
|
|
|
|
drm->session_active.notify = handle_session_active;
|
|
wl_signal_add(&session->events.active, &drm->session_active);
|
|
|
|
if (!check_drm_features(drm)) {
|
|
goto error_event;
|
|
}
|
|
|
|
if (!init_drm_resources(drm)) {
|
|
goto error_event;
|
|
}
|
|
|
|
if (!init_drm_renderer(drm, &drm->renderer)) {
|
|
wlr_log(WLR_ERROR, "Failed to initialize renderer");
|
|
goto error_event;
|
|
}
|
|
|
|
drm->session_destroy.notify = handle_session_destroy;
|
|
wl_signal_add(&session->events.destroy, &drm->session_destroy);
|
|
|
|
drm->display_destroy.notify = handle_display_destroy;
|
|
wl_display_add_destroy_listener(display, &drm->display_destroy);
|
|
|
|
return &drm->backend;
|
|
|
|
error_event:
|
|
wl_list_remove(&drm->session_active.link);
|
|
wl_event_source_remove(drm->drm_event);
|
|
error_fd:
|
|
wlr_session_close_file(drm->session, dev);
|
|
free(drm);
|
|
return NULL;
|
|
}
|