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weston-launch: Pass the DRM device to Cogl

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Open the device from weston-launch, and pass it to Cogl/Clutter.
This is a preliminary cleanup for our login1 integration.
This commit is contained in:
Jasper St. Pierre 2014-03-11 16:51:24 -04:00
parent 1502d2a79f
commit c539dfe0d7
5 changed files with 36 additions and 116 deletions
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11
src/wayland/meta-wayland.c
View File

@ -653,17 +653,6 @@ meta_wayland_init (void)
if (clutter_init (NULL, NULL) != CLUTTER_INIT_SUCCESS)
g_error ("Failed to initialize Clutter");
#if defined(CLUTTER_WINDOWING_EGL)
if (clutter_check_windowing_backend (CLUTTER_WINDOWING_EGL))
{
ClutterBackend *backend = clutter_get_default_backend ();
CoglContext *cogl_context = clutter_backend_get_cogl_context (backend);
CoglRenderer *cogl_renderer = cogl_display_get_renderer (cogl_context_get_display (cogl_context));
int drm_fd = cogl_kms_renderer_get_kms_fd (cogl_renderer);
meta_launcher_set_drm_fd (compositor->launcher, drm_fd, NULL);
}
#endif
meta_monitor_manager_initialize ();
monitors = meta_monitor_manager_get ();
g_signal_connect (monitors, "monitors-changed",

48
src/wayland/meta-weston-launch.c
View File

@ -23,6 +23,7 @@
#include <gio/gunixfdmessage.h>
#include <clutter/clutter.h>
#include <clutter/egl/clutter-egl.h>
#include <clutter/evdev/clutter-evdev.h>
#include <glib.h>
@ -156,36 +157,11 @@ send_message_to_wl (MetaLauncher *self,
return TRUE;
}
gboolean
meta_launcher_set_drm_fd (MetaLauncher *self,
int drm_fd,
GError **error)
{
struct weston_launcher_message message;
GSocketControlMessage *cmsg;
gboolean ok;
message.opcode = WESTON_LAUNCHER_DRM_SET_FD;
cmsg = g_unix_fd_message_new ();
if (g_unix_fd_message_append_fd (G_UNIX_FD_MESSAGE (cmsg),
drm_fd, error) == FALSE)
{
g_object_unref (cmsg);
return FALSE;
}
ok = send_message_to_wl (self, &message, sizeof message, cmsg, NULL, error);
g_object_unref (cmsg);
return ok;
}
static int
meta_launcher_open_input_device (MetaLauncher *self,
const char *name,
int flags,
GError **error)
meta_launcher_open_device (MetaLauncher *self,
const char *name,
int flags,
GError **error)
{
struct weston_launcher_open *message;
GSocketControlMessage *cmsg;
@ -261,7 +237,7 @@ on_evdev_device_open (const char *path,
{
MetaLauncher *launcher = user_data;
return meta_launcher_open_input_device (launcher, path, flags, error);
return meta_launcher_open_device (launcher, path, flags, error);
}
static void
@ -391,6 +367,18 @@ meta_launcher_new (void)
on_evdev_device_close,
self);
#if defined(CLUTTER_WINDOWING_EGL)
if (clutter_check_windowing_backend (CLUTTER_WINDOWING_EGL))
{
GError *error = NULL;
int fd = meta_launcher_open_device (self, "/dev/dri/card0", O_RDWR, &error);
if (error)
g_error ("Failed to open /dev/dri/card0: %s", error->message);
clutter_egl_set_kms_fd (fd);
}
#endif
return self;
}

4
src/wayland/meta-weston-launch.h
View File

@ -31,8 +31,4 @@ void meta_launcher_free (MetaLauncher *self);
gboolean meta_launcher_activate_vt (MetaLauncher *self,
signed char vt,
GError **error);
gboolean meta_launcher_set_drm_fd (MetaLauncher *self,
int drm_fd,
GError **error);
#endif

84
src/wayland/weston-launch.c
View File

@ -165,69 +165,6 @@ setenv_fd(const char *env, int fd)
setenv(env, buf, 1);
}
static int
handle_setdrmfd(struct weston_launch *wl, struct msghdr *msg, ssize_t len)
{
struct weston_launcher_reply reply;
struct cmsghdr *cmsg;
union cmsg_data *data;
struct stat s;
reply.header.opcode = WESTON_LAUNCHER_DRM_SET_FD;
reply.ret = -1;
if (wl->drm_fd != -1) {
error(0, 0, "DRM FD already set");
reply.ret = -EINVAL;
goto out;
}
cmsg = CMSG_FIRSTHDR(msg);
if (!cmsg ||
cmsg->cmsg_level != SOL_SOCKET ||
cmsg->cmsg_type != SCM_RIGHTS) {
error(0, 0, "invalid control message");
reply.ret = -EINVAL;
goto out;
}
data = (union cmsg_data *) CMSG_DATA(cmsg);
if (data->fd < 0) {
error(0, 0, "missing drm fd in socket request");
reply.ret = -EINVAL;
goto out;
}
if (fstat(data->fd, &s) < 0) {
reply.ret = -errno;
goto out;
}
if (major(s.st_rdev) != DRM_MAJOR) {
fprintf(stderr, "FD is not for DRM\n");
reply.ret = -EPERM;
goto out;
}
wl->drm_fd = data->fd;
reply.ret = drmSetMaster(data->fd);
if (reply.ret < 0)
reply.ret = -errno;
if (wl->verbose)
fprintf(stderr, "mutter-launch: set drm FD, ret: %d, fd: %d\n",
reply.ret, data->fd);
out:
do {
len = send(wl->sock[0], &reply, sizeof reply, 0);
} while (len < 0 && errno == EINTR);
if (len < 0)
return -1;
return 0;
}
static int
handle_confirm_vt_switch(struct weston_launch *wl, struct msghdr *msg, ssize_t len)
{
@ -323,6 +260,7 @@ handle_open(struct weston_launch *wl, struct msghdr *msg, ssize_t len)
struct iovec iov;
struct weston_launcher_open *message;
union cmsg_data *data;
int dev_major;
reply.header.opcode = WESTON_LAUNCHER_OPEN;
reply.ret = -1;
@ -339,13 +277,22 @@ handle_open(struct weston_launch *wl, struct msghdr *msg, ssize_t len)
goto err0;
}
if (major(s.st_rdev) != INPUT_MAJOR) {
fprintf(stderr, "Device %s is not an input device\n",
dev_major = major(s.st_rdev);
if (dev_major != INPUT_MAJOR ||
dev_major != DRM_MAJOR) {
fprintf(stderr, "Device %s is not an input or DRM device\n",
message->path);
reply.ret = -EPERM;
goto err0;
}
if (dev_major == DRM_MAJOR && wl->drm_fd != -1) {
fprintf(stderr, "Already have a DRM device open\n");
reply.ret = -EPERM;
goto err0;
}
fd = open(message->path, message->flags);
if (fd < 0) {
fprintf(stderr, "Error opening device %s: %m\n",
@ -354,6 +301,10 @@ handle_open(struct weston_launch *wl, struct msghdr *msg, ssize_t len)
goto err0;
}
if (dev_major == DRM_MAJOR) {
wl->drm_fd = fd;
}
err0:
memset(&nmsg, 0, sizeof nmsg);
nmsg.msg_iov = &iov;
@ -419,9 +370,6 @@ handle_socket_msg(struct weston_launch *wl)
case WESTON_LAUNCHER_OPEN:
ret = handle_open(wl, &msg, len);
break;
case WESTON_LAUNCHER_DRM_SET_FD:
ret = handle_setdrmfd(wl, &msg, len);
break;
case WESTON_LAUNCHER_CONFIRM_VT_SWITCH:
ret = handle_confirm_vt_switch(wl, &msg, len);
break;

5
src/wayland/weston-launch.h
View File

@ -31,9 +31,8 @@ enum weston_launcher_message_type {
enum weston_launcher_opcode {
WESTON_LAUNCHER_OPEN = (1 << 1 | WESTON_LAUNCHER_REQUEST),
WESTON_LAUNCHER_DRM_SET_FD = (2 << 1 | WESTON_LAUNCHER_REQUEST),
WESTON_LAUNCHER_ACTIVATE_VT = (3 << 1 | WESTON_LAUNCHER_REQUEST),
WESTON_LAUNCHER_CONFIRM_VT_SWITCH = (4 << 1 | WESTON_LAUNCHER_REQUEST),
WESTON_LAUNCHER_ACTIVATE_VT = (2 << 1 | WESTON_LAUNCHER_REQUEST),
WESTON_LAUNCHER_CONFIRM_VT_SWITCH = (3 << 1 | WESTON_LAUNCHER_REQUEST),
};
enum weston_launcher_server_opcode {