mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-11-06 05:25:58 +01:00
8da9d9679e
This is a type which manages gbm_surfaces and imported dmabufs in the same place, and makes the lifetime management between the two shared. It should lead to easier to understand code, and fewer special cases. This also contains a fair bit of refactoring to start using this new type. Co-authored-by: Simon Ser <contact@emersion.fr>
227 lines
6.3 KiB
C
227 lines
6.3 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/render/egl.h>
|
|
#include <wlr/types/wlr_list.h>
|
|
#include <wlr/util/log.h>
|
|
#include <xf86drm.h>
|
|
#include "backend/drm/drm.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) {
|
|
wlr_output_destroy(&conn->output);
|
|
}
|
|
|
|
wlr_signal_emit_safe(&backend->events.destroy, backend);
|
|
|
|
wl_list_remove(&drm->display_destroy.link);
|
|
wl_list_remove(&drm->session_destroy.link);
|
|
wl_list_remove(&drm->session_signal.link);
|
|
wl_list_remove(&drm->drm_invalidated.link);
|
|
|
|
finish_drm_resources(drm);
|
|
finish_drm_renderer(&drm->renderer);
|
|
wlr_session_close_file(drm->session, drm->fd);
|
|
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 struct wlr_backend_impl backend_impl = {
|
|
.start = backend_start,
|
|
.destroy = backend_destroy,
|
|
.get_renderer = backend_get_renderer,
|
|
.get_presentation_clock = backend_get_presentation_clock,
|
|
};
|
|
|
|
bool wlr_backend_is_drm(struct wlr_backend *b) {
|
|
return b->impl == &backend_impl;
|
|
}
|
|
|
|
static void session_signal(struct wl_listener *listener, void *data) {
|
|
struct wlr_drm_backend *drm =
|
|
wl_container_of(listener, drm, session_signal);
|
|
struct wlr_session *session = data;
|
|
|
|
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){
|
|
if (conn->output.enabled && conn->output.current_mode != NULL) {
|
|
drm_connector_set_mode(&conn->output,
|
|
conn->output.current_mode);
|
|
} else {
|
|
enable_drm_connector(&conn->output, false);
|
|
}
|
|
|
|
if (!conn->crtc) {
|
|
continue;
|
|
}
|
|
|
|
struct wlr_drm_plane *plane = conn->crtc->cursor;
|
|
struct gbm_bo *bo = NULL;
|
|
if (plane->cursor_enabled) {
|
|
bo = drm_fb_acquire(&plane->current_fb, drm,
|
|
&plane->mgpu_surf);
|
|
}
|
|
|
|
drm->iface->crtc_set_cursor(drm, conn->crtc, bo);
|
|
drm->iface->crtc_move_cursor(drm, conn->crtc, conn->cursor_x,
|
|
conn->cursor_y);
|
|
|
|
if (conn->crtc->gamma_table != NULL) {
|
|
size_t size = conn->crtc->gamma_table_size;
|
|
uint16_t *r = conn->crtc->gamma_table;
|
|
uint16_t *g = conn->crtc->gamma_table + size;
|
|
uint16_t *b = conn->crtc->gamma_table + 2 * size;
|
|
drm->iface->crtc_set_gamma(drm, conn->crtc, size, r, g, b);
|
|
} else {
|
|
set_drm_connector_gamma(&conn->output, 0, NULL, NULL, NULL);
|
|
}
|
|
}
|
|
} else {
|
|
wlr_log(WLR_INFO, "DRM fd paused");
|
|
}
|
|
}
|
|
|
|
static void drm_invalidated(struct wl_listener *listener, void *data) {
|
|
struct wlr_drm_backend *drm =
|
|
wl_container_of(listener, drm, drm_invalidated);
|
|
|
|
char *name = drmGetDeviceNameFromFd2(drm->fd);
|
|
wlr_log(WLR_DEBUG, "%s invalidated", name);
|
|
free(name);
|
|
|
|
scan_drm_connectors(drm);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
struct wlr_backend *wlr_drm_backend_create(struct wl_display *display,
|
|
struct wlr_session *session, int gpu_fd, struct wlr_backend *parent,
|
|
wlr_renderer_create_func_t create_renderer_func) {
|
|
assert(display && session && gpu_fd >= 0);
|
|
assert(!parent || wlr_backend_is_drm(parent));
|
|
|
|
char *name = drmGetDeviceNameFromFd2(gpu_fd);
|
|
drmVersion *version = drmGetVersion(gpu_fd);
|
|
wlr_log(WLR_INFO, "Initializing DRM backend for %s (%s)", name, version->name);
|
|
free(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->outputs);
|
|
|
|
drm->fd = gpu_fd;
|
|
if (parent != NULL) {
|
|
drm->parent = get_drm_backend_from_backend(parent);
|
|
}
|
|
|
|
drm->drm_invalidated.notify = drm_invalidated;
|
|
wlr_session_signal_add(session, gpu_fd, &drm->drm_invalidated);
|
|
|
|
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_signal.notify = session_signal;
|
|
wl_signal_add(&session->session_signal, &drm->session_signal);
|
|
|
|
if (!check_drm_features(drm)) {
|
|
goto error_event;
|
|
}
|
|
|
|
if (!init_drm_resources(drm)) {
|
|
goto error_event;
|
|
}
|
|
|
|
if (!init_drm_renderer(drm, &drm->renderer, create_renderer_func)) {
|
|
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_signal.link);
|
|
wl_event_source_remove(drm->drm_event);
|
|
error_fd:
|
|
wlr_session_close_file(drm->session, drm->fd);
|
|
free(drm);
|
|
return NULL;
|
|
}
|