static void
xwl_drm_handle_device(void *data, struct wl_drm *drm, const char *device)
{
struct xwl_screen *xwl_screen = data;
drm_magic_t magic;
xwl_screen->device_name = strdup(device);
if (!xwl_screen->device_name)
return;
xwl_screen->drm_fd = open(xwl_screen->device_name, O_RDWR | O_CLOEXEC);
if (xwl_screen->drm_fd == -1) {
ErrorF("wayland-egl: could not open %s (%s)\n",
xwl_screen->device_name, strerror(errno));
return;
}
if (is_fd_render_node(xwl_screen->drm_fd)) {
xwl_screen->fd_render_node = 1;
xwl_drm_init_egl(xwl_screen);
} else {
drmGetMagic(xwl_screen->drm_fd, &magic);
wl_drm_authenticate(xwl_screen->drm, magic);
}
}
static void
drm_handle_device(void *data, struct wl_drm *drm, const char *device)
{
VADisplayContextP const pDisplayContext = data;
VADriverContextP const ctx = pDisplayContext->pDriverContext;
VADisplayContextWaylandDRM * const wl_drm_ctx = pDisplayContext->opaque;
struct drm_state * const drm_state = ctx->drm_state;
drm_magic_t magic;
struct stat st;
if (stat(device, &st) < 0) {
va_wayland_error("failed to identify %s: %s (errno %d)",
device, strerror(errno), errno);
return;
}
if (!S_ISCHR(st.st_mode)) {
va_wayland_error("%s is not a device", device);
return;
}
drm_state->fd = open(device, O_RDWR);
if (drm_state->fd < 0) {
va_wayland_error("failed to open %s: %s (errno %d)",
device, strerror(errno), errno);
return;
}
drmGetMagic(drm_state->fd, &magic);
wl_drm_authenticate(wl_drm_ctx->drm, magic);
}
static int
init_drm(struct display *d)
{
EGLint major, minor;
int fd;
drm_magic_t magic;
fd = open(d->device_name, O_RDWR);
if (fd < 0) {
fprintf(stderr, "drm open failed: %m\n");
return -1;
}
if (drmGetMagic(fd, &magic)) {
fprintf(stderr, "DRI2: failed to get drm magic");
return -1;
}
/* Wait for authenticated event */
wl_drm_authenticate(d->drm, magic);
wl_display_iterate(d->display, WL_DISPLAY_WRITABLE);
while (!d->authenticated)
wl_display_iterate(d->display, WL_DISPLAY_READABLE);
d->dpy = eglGetDRMDisplayMESA(fd);
if (!eglInitialize(d->dpy, &major, &minor)) {
fprintf(stderr, "failed to initialize display\n");
return -1;
}
if (!eglBindAPI(EGL_OPENGL_API)) {
fprintf(stderr, "failed to bind api EGL_OPENGL_API\n");
return -1;
}
d->ctx = eglCreateContext(d->dpy, NULL, EGL_NO_CONTEXT, NULL);
if (d->ctx == NULL) {
fprintf(stderr, "failed to create context\n");
return -1;
}
if (!eglMakeCurrent(d->dpy, NULL, NULL, d->ctx)) {
fprintf(stderr, "faile to make context current\n");
return -1;
}
#ifdef HAVE_CAIRO_EGL
d->device = cairo_egl_device_create(d->dpy, d->ctx);
if (d->device == NULL) {
fprintf(stderr, "failed to get cairo drm device\n");
return -1;
}
#endif
return 0;
}
static int
wayland_drm_display_authenticate(void *user_data, uint32_t magic)
{
struct native_display *ndpy = user_data;
struct wayland_drm_display *drmdpy = wayland_drm_display(ndpy);
boolean current_authenticate, authenticated;
current_authenticate = drmdpy->authenticated;
wl_drm_authenticate(drmdpy->wl_drm, magic);
wl_display_roundtrip(drmdpy->base.dpy);
authenticated = drmdpy->authenticated;
drmdpy->authenticated = current_authenticate;
return authenticated ? 0 : -1;
}
static int
xwl_dri3_open_client(ClientPtr client,
ScreenPtr screen,
RRProviderPtr provider,
int *pfd)
{
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
struct xwl_auth_state *state;
struct wl_callback *callback;
drm_magic_t magic;
int fd;
fd = open(xwl_screen->device_name, O_RDWR | O_CLOEXEC);
if (fd < 0)
return BadAlloc;
if (xwl_screen->fd_render_node) {
*pfd = fd;
return Success;
}
state = malloc(sizeof *state);
if (state == NULL) {
close(fd);
return BadAlloc;
}
state->client = client;
state->fd = fd;
if (drmGetMagic(state->fd, &magic) < 0) {
close(state->fd);
free(state);
return BadMatch;
}
wl_drm_authenticate(xwl_screen->drm, magic);
callback = wl_display_sync(xwl_screen->display);
wl_callback_add_listener(callback, &sync_listener, state);
IgnoreClient(client);
return Success;
}
static int
dri2_wayland_authenticate(_EGLDisplay *disp, uint32_t id)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
int ret = 0;
dri2_dpy->authenticated = 0;
wl_drm_authenticate(dri2_dpy->wl_drm, id);
wl_display_roundtrip(dri2_dpy->wl_dpy);
if (!dri2_dpy->authenticated)
ret = -1;
/* reset authenticated */
dri2_dpy->authenticated = 1;
return ret;
}
static void
drm_handle_device(void *data, struct wl_drm *drm, const char *device)
{
struct wayland_drm_display *drmdpy = data;
drm_magic_t magic;
drmdpy->device_name = strdup(device);
if (!drmdpy->device_name)
return;
drmdpy->fd = open(drmdpy->device_name, O_RDWR);
if (drmdpy->fd == -1) {
_eglLog(_EGL_WARNING, "wayland-egl: could not open %s (%s)",
drmdpy->device_name, strerror(errno));
return;
}
drmGetMagic(drmdpy->fd, &magic);
wl_drm_authenticate(drmdpy->wl_drm, magic);
}
static void
drm_handle_device(void *data, struct wl_drm *drm, const char *device)
{
wl_drm_authenticate(drm, 0);
}
static gboolean
try_enable_drm (ClutterBackendWayland *backend_wayland, GError **error)
{
drm_magic_t magic;
const gchar *exts, *glexts;
if (backend_wayland->drm_fd < 0)
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
"Failed to open drm device");
return FALSE;
}
glexts = glGetString(GL_EXTENSIONS);
exts = eglQueryString (backend_wayland->edpy, EGL_EXTENSIONS);
if (!_cogl_check_extension ("EGL_KHR_image_base", exts) ||
!_cogl_check_extension ("EGL_MESA_drm_image", exts) ||
!_cogl_check_extension ("GL_OES_EGL_image", glexts))
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
"Missing EGL extensions");
return FALSE;
}
backend_wayland->create_drm_image =
(PFNEGLCREATEDRMIMAGEMESA) eglGetProcAddress ("eglCreateDRMImageMESA");
backend_wayland->destroy_image =
(PFNEGLDESTROYIMAGEKHRPROC) eglGetProcAddress ("eglDestroyImageKHR");
backend_wayland->export_drm_image =
(PFNEGLEXPORTDRMIMAGEMESA) eglGetProcAddress ("eglExportDRMImageMESA");
backend_wayland->image_target_texture_2d =
(PFNGLEGLIMAGETARGETTEXTURE2DOESPROC) eglGetProcAddress ("glEGLImageTargetTexture2DOES");
if (backend_wayland->create_drm_image == NULL ||
backend_wayland->destroy_image == NULL ||
backend_wayland->export_drm_image == NULL ||
backend_wayland->image_target_texture_2d == NULL)
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
"Missing EGL extensions");
return FALSE;
}
if (drmGetMagic (backend_wayland->drm_fd, &magic))
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
"Failed to get drm magic");
return FALSE;
}
wl_drm_authenticate (backend_wayland->wayland_drm, magic);
wl_display_iterate (backend_wayland->wayland_display, WL_DISPLAY_WRITABLE);
while (!backend_wayland->authenticated)
wl_display_iterate (backend_wayland->wayland_display, WL_DISPLAY_READABLE);
return TRUE;
};