int mggh::DRMHelper::get_authenticated_fd()
{
/* We must have our own device fd first, so that it has become the DRM master */
if (fd < 0)
BOOST_THROW_EXCEPTION(
std::runtime_error(
"Tried to get authenticated DRM fd before setting up the DRM master"));
int auth_fd = open_drm_device();
if (auth_fd < 0)
BOOST_THROW_EXCEPTION(
std::runtime_error("Failed to open DRM device for authenticated fd"));
drm_magic_t magic;
int ret = -1;
if ((ret = drmGetMagic(auth_fd, &magic)) < 0)
{
close(auth_fd);
BOOST_THROW_EXCEPTION(
boost::enable_error_info(
std::runtime_error("Failed to get DRM device magic cookie")) << boost::errinfo_errno(ret));
}
if ((ret = drmAuthMagic(fd, magic)) < 0)
{
close(auth_fd);
BOOST_THROW_EXCEPTION(
boost::enable_error_info(
std::runtime_error("Failed to authenticate DRM device magic cookie")) << boost::errinfo_errno(ret));
}
return auth_fd;
}
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 inline int
is_drm_master(int drm_fd)
{
drm_magic_t magic;
return drmGetMagic(drm_fd, &magic) == 0 &&
drmAuthMagic(drm_fd, magic) == 0;
}
void QXcbConnection::initializeDri2()
{
xcb_dri2_connect_cookie_t connect_cookie = xcb_dri2_connect_unchecked (m_connection,
m_screens[0]->root(),
XCB_DRI2_DRIVER_TYPE_DRI);
xcb_dri2_connect_reply_t *connect = xcb_dri2_connect_reply (m_connection,
connect_cookie, NULL);
if (! connect || connect->driver_name_length + connect->device_name_length == 0) {
qDebug() << "Failed to connect to dri2";
return;
}
m_dri2_device_name = QByteArray(xcb_dri2_connect_device_name (connect),
xcb_dri2_connect_device_name_length (connect));
delete connect;
int fd = open(m_dri2_device_name.constData(), O_RDWR);
if (fd < 0) {
qDebug() << "InitializeDri2: Could'nt open device << dri2DeviceName";
m_dri2_device_name = QByteArray();
return;
}
drm_magic_t magic;
if (drmGetMagic(fd, &magic)) {
qDebug() << "Failed to get drmMagic";
return;
}
xcb_dri2_authenticate_cookie_t authenticate_cookie = xcb_dri2_authenticate_unchecked(m_connection,
m_screens[0]->root(), magic);
xcb_dri2_authenticate_reply_t *authenticate = xcb_dri2_authenticate_reply(m_connection,
authenticate_cookie, NULL);
if (authenticate == NULL || !authenticate->authenticated) {
fprintf(stderr, "DRI2: failed to authenticate\n");
free(authenticate);
return;
}
delete authenticate;
EGLDisplay display = eglGetDRMDisplayMESA(fd);
if (!display) {
fprintf(stderr, "failed to create display\n");
return;
}
m_egl_display = display;
EGLint major,minor;
if (!eglInitialize(display, &major, &minor)) {
fprintf(stderr, "failed to initialize display\n");
return;
}
}
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 void
pipe_loader_drm_x_auth(int fd)
{
#ifdef HAVE_PIPE_LOADER_XCB
/* Try authenticate with the X server to give us access to devices that X
* is running on. */
xcb_connection_t *xcb_conn;
const xcb_setup_t *xcb_setup;
xcb_screen_iterator_t s;
xcb_dri2_connect_cookie_t connect_cookie;
xcb_dri2_connect_reply_t *connect;
drm_magic_t magic;
xcb_dri2_authenticate_cookie_t authenticate_cookie;
xcb_dri2_authenticate_reply_t *authenticate;
int screen;
xcb_conn = xcb_connect(NULL, &screen);
if(!xcb_conn)
return;
xcb_setup = xcb_get_setup(xcb_conn);
if (!xcb_setup)
goto disconnect;
s = xcb_setup_roots_iterator(xcb_setup);
connect_cookie = xcb_dri2_connect_unchecked(xcb_conn,
get_xcb_screen(s, screen)->root,
XCB_DRI2_DRIVER_TYPE_DRI);
connect = xcb_dri2_connect_reply(xcb_conn, connect_cookie, NULL);
if (!connect || connect->driver_name_length
+ connect->device_name_length == 0) {
goto disconnect;
}
if (drmGetMagic(fd, &magic))
goto disconnect;
authenticate_cookie = xcb_dri2_authenticate_unchecked(xcb_conn,
s.data->root,
magic);
authenticate = xcb_dri2_authenticate_reply(xcb_conn,
authenticate_cookie,
NULL);
FREE(authenticate);
disconnect:
xcb_disconnect(xcb_conn);
#endif
}
static int dri2_connect(Display *dpy, char **driver)
{
int eventBase, errorBase, major, minor;
char *device;
drm_magic_t magic;
Window root;
int fd;
if (!DRI2InitDisplay(dpy, &ops)) {
ERROR_MSG("DRI2InitDisplay failed");
return -1;
}
if (!DRI2QueryExtension(dpy, &eventBase, &errorBase)) {
ERROR_MSG("DRI2QueryExtension failed");
return -1;
}
MSG("DRI2QueryExtension: eventBase=%d, errorBase=%d", eventBase, errorBase);
if (!DRI2QueryVersion(dpy, &major, &minor)) {
ERROR_MSG("DRI2QueryVersion failed");
return -1;
}
MSG("DRI2QueryVersion: major=%d, minor=%d", major, minor);
root = RootWindow(dpy, DefaultScreen(dpy));
if (!DRI2Connect(dpy, root, driver, &device)) {
ERROR_MSG("DRI2Connect failed");
return -1;
}
MSG("DRI2Connect: driver=%s, device=%s", *driver, device);
fd = open(device, O_RDWR);
if (fd < 0) {
ERROR_MSG("open failed");
return fd;
}
if (drmGetMagic(fd, &magic)) {
ERROR_MSG("drmGetMagic failed");
return -1;
}
if (!DRI2Authenticate(dpy, root, magic)) {
ERROR_MSG("DRI2Authenticate failed");
return -1;
}
return fd;
}
/**
* Enable DRI2 and returns the file descriptor of the DRM device. The file
* descriptor will be closed automatically when the screen is destoryed.
*/
int
x11_screen_enable_dri2(struct x11_screen *xscr,
x11_drawable_invalidate_buffers invalidate_buffers,
void *user_data)
{
if (xscr->dri_fd < 0) {
int fd;
drm_magic_t magic;
/* get the driver name and the device name first */
if (!x11_screen_probe_dri2(xscr, NULL, NULL))
return -1;
fd = open(xscr->dri_device, O_RDWR);
if (fd < 0) {
_eglLog(_EGL_WARNING, "failed to open %s", xscr->dri_device);
return -1;
}
memset(&magic, 0, sizeof(magic));
if (drmGetMagic(fd, &magic)) {
_eglLog(_EGL_WARNING, "failed to get magic");
close(fd);
return -1;
}
if (!DRI2Authenticate(xscr->dpy,
RootWindow(xscr->dpy, xscr->number), magic)) {
_eglLog(_EGL_WARNING, "failed to authenticate magic");
close(fd);
return -1;
}
if (!x11_screen_init_glx(xscr)) {
_eglLog(_EGL_WARNING, "failed to initialize GLX");
close(fd);
return -1;
}
if (xscr->glx_dpy->xscr) {
_eglLog(_EGL_WARNING,
"display is already managed by another x11 screen");
close(fd);
return -1;
}
xscr->glx_dpy->xscr = xscr;
xscr->dri_invalidate_buffers = invalidate_buffers;
xscr->dri_user_data = user_data;
xscr->dri_fd = fd;
}
return xscr->dri_fd;
}
static EGLBoolean
dri2_x11_local_authenticate(struct dri2_egl_display *dri2_dpy)
{
#ifdef HAVE_LIBDRM
drm_magic_t magic;
if (drmGetMagic(dri2_dpy->fd, &magic)) {
_eglLog(_EGL_WARNING, "DRI2: failed to get drm magic");
return EGL_FALSE;
}
if (dri2_x11_do_authenticate(dri2_dpy, magic) < 0) {
_eglLog(_EGL_WARNING, "DRI2: failed to authenticate");
return EGL_FALSE;
}
#endif
return EGL_TRUE;
}
static EGLBoolean
dri2_authenticate(_EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
drm_magic_t magic;
if (drmGetMagic(dri2_dpy->fd, &magic)) {
_eglLog(_EGL_WARNING, "DRI2: failed to get drm magic");
return EGL_FALSE;
}
if (dri2_x11_authenticate(disp, magic) < 0) {
_eglLog(_EGL_WARNING, "DRI2: failed to authenticate");
return EGL_FALSE;
}
return EGL_TRUE;
}
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 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);
}
Bool
isDRI2Connected(VADriverContextP ctx, char **driver_name)
{
struct dri_state *dri_state = (struct dri_state *)ctx->drm_state;
int major, minor;
int error_base;
int event_base;
char *device_name = NULL;
drm_magic_t magic;
*driver_name = NULL;
dri_state->base.fd = -1;
dri_state->base.auth_type = VA_NONE;
if (!VA_DRI2QueryExtension(ctx->native_dpy, &event_base, &error_base))
goto err_out;
if (!VA_DRI2QueryVersion(ctx->native_dpy, &major, &minor))
goto err_out;
if (!VA_DRI2Connect(ctx->native_dpy, RootWindow(ctx->native_dpy, ctx->x11_screen),
driver_name, &device_name) || !device_name)
goto err_out;
dri_state->base.fd = open(device_name, O_RDWR);
assert(dri_state->base.fd >= 0);
if (dri_state->base.fd < 0)
goto err_out;
if (drmGetMagic(dri_state->base.fd, &magic))
goto err_out;
if (!VA_DRI2Authenticate(ctx->native_dpy, RootWindow(ctx->native_dpy, ctx->x11_screen),
magic))
goto err_out;
dri_state->base.auth_type = VA_DRI2;
dri_state->createDrawable = dri2CreateDrawable;
dri_state->destroyDrawable = dri2DestroyDrawable;
dri_state->swapBuffer = dri2SwapBuffer;
dri_state->getRenderingBuffer = dri2GetRenderingBuffer;
dri_state->close = dri2Close;
gsDRI2SwapAvailable = (minor >= 2);
Xfree(device_name);
return True;
err_out:
if (device_name)
Xfree(device_name);
if (*driver_name)
Xfree(*driver_name);
if (dri_state->base.fd >= 0)
close(dri_state->base.fd);
*driver_name = NULL;
dri_state->base.fd = -1;
return False;
}
static struct pipe_screen *
radeon_hardpipe_screen_create(void)
{
Display *dpy;
Window rootWin;
XWindowAttributes winAttr;
int isCapable;
int screen;
char *driverName;
char *curBusID;
unsigned magic;
int ddxDriverMajor;
int ddxDriverMinor;
int ddxDriverPatch;
drm_handle_t sAreaOffset;
int ret;
int drmFD;
drm_context_t hHWContext;
XID id;
dpy = XOpenDisplay(":0");
if (!dpy) {
fprintf(stderr, "Open Display Failed\n");
return NULL;
}
screen = DefaultScreen(dpy);
rootWin = RootWindow(dpy, screen);
XGetWindowAttributes(dpy, rootWin, &winAttr);
ret = uniDRIQueryDirectRenderingCapable(dpy, screen, &isCapable);
if (!ret || !isCapable) {
fprintf(stderr, "No DRI on this display:sceen\n");
goto error;
}
if (!uniDRIOpenConnection(dpy, screen, &sAreaOffset,
&curBusID)) {
fprintf(stderr, "Could not open DRI connection.\n");
goto error;
}
if (!uniDRIGetClientDriverName(dpy, screen, &ddxDriverMajor,
&ddxDriverMinor, &ddxDriverPatch,
&driverName)) {
fprintf(stderr, "Could not get DRI driver name.\n");
goto error;
}
if ((drmFD = drmOpen(NULL, curBusID)) < 0) {
perror("DRM Device could not be opened");
goto error;
}
drmGetMagic(drmFD, &magic);
if (!uniDRIAuthConnection(dpy, screen, magic)) {
fprintf(stderr, "Could not get X server to authenticate us.\n");
goto error;
}
if (!uniDRICreateContext(dpy, screen, winAttr.visual,
&id, &hHWContext)) {
fprintf(stderr, "Could not create DRI context.\n");
goto error;
}
/* FIXME: create a radeon pipe_screen from drmFD and hHWContext */
return NULL;
error:
return NULL;
}
/*
* Get the magic for authentication.
*/
int gralloc_drm_get_magic(struct gralloc_drm_t *drm, int32_t *magic)
{
return drmGetMagic(drm->fd, (drm_magic_t *) magic);
}
Bool
isDRI1Connected(VADriverContextP ctx, char **driver_name)
{
struct dri_state *dri_state = (struct dri_state *)ctx->drm_state;
int direct_capable;
int driver_major;
int driver_minor;
int driver_patch;
int newlyopened;
char *BusID;
drm_magic_t magic;
*driver_name = NULL;
dri_state->base.fd = -1;
dri_state->pSAREA = MAP_FAILED;
dri_state->base.auth_type = VA_NONE;
if (!VA_DRIQueryDirectRenderingCapable(ctx->native_dpy,
ctx->x11_screen,
&direct_capable))
goto err_out0;
if (!direct_capable)
goto err_out0;
if (!VA_DRIGetClientDriverName(ctx->native_dpy, ctx->x11_screen,
&driver_major, &driver_minor,
&driver_patch, driver_name))
goto err_out0;
if (!VA_DRIOpenConnection(ctx->native_dpy, ctx->x11_screen,
&dri_state->hSAREA, &BusID))
goto err_out0;
dri_state->base.fd = drmOpenOnce(NULL, BusID, &newlyopened);
XFree(BusID);
if (dri_state->base.fd < 0)
goto err_out1;
if (drmGetMagic(dri_state->base.fd, &magic))
goto err_out1;
if (newlyopened && !VA_DRIAuthConnection(ctx->native_dpy, ctx->x11_screen, magic))
goto err_out1;
if (drmMap(dri_state->base.fd, dri_state->hSAREA, SAREA_MAX, &dri_state->pSAREA))
goto err_out1;
if (!VA_DRICreateContext(ctx->native_dpy, ctx->x11_screen,
DefaultVisual(ctx->native_dpy, ctx->x11_screen),
&dri_state->hwContextID, &dri_state->hwContext))
goto err_out1;
dri_state->base.auth_type = VA_DRI1;
dri_state->createDrawable = dri1CreateDrawable;
dri_state->destroyDrawable = dri1DestroyDrawable;
dri_state->swapBuffer = dri1SwapBuffer;
dri_state->getRenderingBuffer = dri1GetRenderingBuffer;
dri_state->close = dri1Close;
return True;
err_out1:
if (dri_state->pSAREA != MAP_FAILED)
drmUnmap(dri_state->pSAREA, SAREA_MAX);
if (dri_state->base.fd >= 0)
drmCloseOnce(dri_state->base.fd);
VA_DRICloseConnection(ctx->native_dpy, ctx->x11_screen);
err_out0:
if (*driver_name)
XFree(*driver_name);
dri_state->pSAREA = MAP_FAILED;
dri_state->base.fd = -1;
*driver_name = NULL;
return False;
}
static __GLXDRIscreen *
dri2CreateScreen(__GLXscreenConfigs * psc, int screen,
__GLXdisplayPrivate * priv)
{
const __DRIconfig **driver_configs;
const __DRIextension **extensions;
const __GLXDRIdisplayPrivate *const pdp = (__GLXDRIdisplayPrivate *)
priv->dri2Display;
__GLXDRIscreen *psp;
char *driverName, *deviceName;
drm_magic_t magic;
int i;
psp = Xmalloc(sizeof *psp);
if (psp == NULL)
return NULL;
if (!DRI2Connect(psc->dpy, RootWindow(psc->dpy, screen),
&driverName, &deviceName)) {
XFree(psp);
return NULL;
}
psc->driver = driOpenDriver(driverName);
if (psc->driver == NULL) {
ErrorMessageF("driver pointer missing\n");
goto handle_error;
}
extensions = dlsym(psc->driver, __DRI_DRIVER_EXTENSIONS);
if (extensions == NULL) {
ErrorMessageF("driver exports no extensions (%s)\n", dlerror());
goto handle_error;
}
for (i = 0; extensions[i]; i++) {
if (strcmp(extensions[i]->name, __DRI_CORE) == 0)
psc->core = (__DRIcoreExtension *) extensions[i];
if (strcmp(extensions[i]->name, __DRI_DRI2) == 0)
psc->dri2 = (__DRIdri2Extension *) extensions[i];
}
if (psc->core == NULL || psc->dri2 == NULL) {
ErrorMessageF("core dri or dri2 extension not found\n");
goto handle_error;
}
psc->fd = open(deviceName, O_RDWR);
if (psc->fd < 0) {
ErrorMessageF("failed to open drm device: %s\n", strerror(errno));
goto handle_error;
}
if (drmGetMagic(psc->fd, &magic)) {
ErrorMessageF("failed to get magic\n");
goto handle_error;
}
if (!DRI2Authenticate(psc->dpy, RootWindow(psc->dpy, screen), magic)) {
ErrorMessageF("failed to authenticate magic %d\n", magic);
goto handle_error;
}
/* If the server does not support the protocol for
* DRI2GetBuffersWithFormat, don't supply that interface to the driver.
*/
psc->__driScreen =
psc->dri2->createNewScreen(screen, psc->fd, ((pdp->driMinor < 1)
? loader_extensions_old
: loader_extensions),
&driver_configs, psc);
if (psc->__driScreen == NULL) {
ErrorMessageF("failed to create dri screen\n");
goto handle_error;
}
driBindCommonExtensions(psc);
dri2BindExtensions(psc);
psc->configs = driConvertConfigs(psc->core, psc->configs, driver_configs);
psc->visuals = driConvertConfigs(psc->core, psc->visuals, driver_configs);
psc->driver_configs = driver_configs;
psp->destroyScreen = dri2DestroyScreen;
psp->createContext = dri2CreateContext;
psp->createDrawable = dri2CreateDrawable;
psp->swapBuffers = dri2SwapBuffers;
psp->waitGL = dri2WaitGL;
psp->waitX = dri2WaitX;
psp->getDrawableMSC = NULL;
psp->waitForMSC = NULL;
psp->waitForSBC = NULL;
psp->setSwapInterval = NULL;
psp->getSwapInterval = NULL;
if (pdp->driMinor >= 2) {
#ifdef X_DRI2GetMSC
psp->getDrawableMSC = dri2DrawableGetMSC;
#endif
#ifdef X_DRI2WaitMSC
psp->waitForMSC = dri2WaitForMSC;
psp->waitForSBC = dri2WaitForSBC;
#endif
#ifdef X_DRI2SwapInterval
psp->setSwapInterval = dri2SetSwapInterval;
psp->getSwapInterval = dri2GetSwapInterval;
#endif
#if defined(X_DRI2GetMSC) && defined(X_DRI2WaitMSC) && defined(X_DRI2SwapInterval)
__glXEnableDirectExtension(psc, "GLX_OML_sync_control");
#endif
}
/* DRI2 suports SubBuffer through DRI2CopyRegion, so it's always
* available.*/
psp->copySubBuffer = dri2CopySubBuffer;
__glXEnableDirectExtension(psc, "GLX_MESA_copy_sub_buffer");
Xfree(driverName);
Xfree(deviceName);
return psp;
handle_error:
Xfree(driverName);
Xfree(deviceName);
XFree(psp);
/* FIXME: clean up here */
return NULL;
}
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;
};
struct vl_screen *
vl_dri2_screen_create(Display *display, int screen)
{
struct vl_dri_screen *scrn;
const xcb_query_extension_reply_t *extension;
xcb_dri2_query_version_cookie_t dri2_query_cookie;
xcb_dri2_query_version_reply_t *dri2_query = NULL;
xcb_dri2_connect_cookie_t connect_cookie;
xcb_dri2_connect_reply_t *connect = NULL;
xcb_dri2_authenticate_cookie_t authenticate_cookie;
xcb_dri2_authenticate_reply_t *authenticate = NULL;
xcb_screen_iterator_t s;
xcb_generic_error_t *error = NULL;
char *device_name;
int fd, device_name_length;
unsigned driverType;
drm_magic_t magic;
assert(display);
scrn = CALLOC_STRUCT(vl_dri_screen);
if (!scrn)
return NULL;
scrn->conn = XGetXCBConnection(display);
if (!scrn->conn)
goto free_screen;
xcb_prefetch_extension_data(scrn->conn, &xcb_dri2_id);
extension = xcb_get_extension_data(scrn->conn, &xcb_dri2_id);
if (!(extension && extension->present))
goto free_screen;
dri2_query_cookie = xcb_dri2_query_version (scrn->conn,
XCB_DRI2_MAJOR_VERSION,
XCB_DRI2_MINOR_VERSION);
dri2_query = xcb_dri2_query_version_reply (scrn->conn, dri2_query_cookie, &error);
if (dri2_query == NULL || error != NULL || dri2_query->minor_version < 2)
goto free_query;
s = xcb_setup_roots_iterator(xcb_get_setup(scrn->conn));
scrn->base.xcb_screen = get_xcb_screen(s, screen);
if (!scrn->base.xcb_screen)
goto free_query;
driverType = XCB_DRI2_DRIVER_TYPE_DRI;
{
char *prime = getenv("DRI_PRIME");
if (prime) {
unsigned primeid;
errno = 0;
primeid = strtoul(prime, NULL, 0);
if (errno == 0)
driverType |=
((primeid & DRI2DriverPrimeMask) << DRI2DriverPrimeShift);
}
}
connect_cookie = xcb_dri2_connect_unchecked(
scrn->conn, ((xcb_screen_t *)(scrn->base.xcb_screen))->root, driverType);
connect = xcb_dri2_connect_reply(scrn->conn, connect_cookie, NULL);
if (connect == NULL ||
connect->driver_name_length + connect->device_name_length == 0)
goto free_connect;
device_name_length = xcb_dri2_connect_device_name_length(connect);
device_name = CALLOC(1, device_name_length + 1);
if (!device_name)
goto free_connect;
memcpy(device_name, xcb_dri2_connect_device_name(connect), device_name_length);
fd = loader_open_device(device_name);
free(device_name);
if (fd < 0)
goto free_connect;
if (drmGetMagic(fd, &magic))
goto close_fd;
authenticate_cookie = xcb_dri2_authenticate_unchecked(
scrn->conn, ((xcb_screen_t *)(scrn->base.xcb_screen))->root, magic);
authenticate = xcb_dri2_authenticate_reply(scrn->conn, authenticate_cookie, NULL);
if (authenticate == NULL || !authenticate->authenticated)
goto free_authenticate;
if (pipe_loader_drm_probe_fd(&scrn->base.dev, fd))
scrn->base.pscreen = pipe_loader_create_screen(scrn->base.dev);
if (!scrn->base.pscreen)
goto release_pipe;
scrn->base.destroy = vl_dri2_screen_destroy;
scrn->base.texture_from_drawable = vl_dri2_screen_texture_from_drawable;
scrn->base.get_dirty_area = vl_dri2_screen_get_dirty_area;
scrn->base.get_timestamp = vl_dri2_screen_get_timestamp;
scrn->base.set_next_timestamp = vl_dri2_screen_set_next_timestamp;
scrn->base.get_private = vl_dri2_screen_get_private;
scrn->base.pscreen->flush_frontbuffer = vl_dri2_flush_frontbuffer;
vl_compositor_reset_dirty_area(&scrn->dirty_areas[0]);
vl_compositor_reset_dirty_area(&scrn->dirty_areas[1]);
/* The pipe loader duplicates the fd */
close(fd);
free(authenticate);
free(connect);
free(dri2_query);
free(error);
return &scrn->base;
release_pipe:
if (scrn->base.dev)
pipe_loader_release(&scrn->base.dev, 1);
free_authenticate:
free(authenticate);
close_fd:
close(fd);
free_connect:
free(connect);
free_query:
free(dri2_query);
free(error);
free_screen:
FREE(scrn);
return NULL;
}
LOCAL dri_state_t*
getDRI2State(Display* dpy, int screen, char **driver_name)
{
int major, minor;
int error_base;
int event_base;
char *device_name = NULL;
drm_magic_t magic;
char * internal_driver_name = NULL;
int fd = -1;
dri_state_t* state = NULL;
if (!VA_DRI2QueryExtension(dpy, &event_base, &error_base))
goto err_out;
if (!VA_DRI2QueryVersion(dpy, &major, &minor))
goto err_out;
if (!VA_DRI2Connect(dpy, RootWindow(dpy, screen),
&internal_driver_name, &device_name))
goto err_out;
fd = open(device_name, O_RDWR);
if (fd < 0)
goto err_out;
if (drmGetMagic(fd, &magic))
goto err_out;
if (!VA_DRI2Authenticate(dpy, RootWindow(dpy, screen),
magic))
goto err_out;
if(driver_name)
*driver_name = internal_driver_name;
else
Xfree(internal_driver_name);
state = dri_state_new();
state->fd = fd;
state->x11_dpy = dpy;
state->x11_screen = screen;
state->driConnectedFlag = DRI2;
if (device_name)
Xfree(device_name);
return state;
err_out:
if (device_name)
Xfree(device_name);
if (internal_driver_name)
Xfree(internal_driver_name);
if(driver_name) *driver_name = NULL;
if (fd >= 0)
close(fd);
if (driver_name)
*driver_name = NULL;
return state;
}
/**
* Perform the required libGL-side initialization and call the client-side
* driver's \c __driCreateNewScreen function.
*
* \param dpy Display pointer.
* \param scrn Screen number on the display.
* \param psc DRI screen information.
* \param driDpy DRI display information.
* \param createNewScreen Pointer to the client-side driver's
* \c __driCreateNewScreen function.
* \returns A pointer to the \c __DRIscreen structure returned by
* the client-side driver on success, or \c NULL on failure.
*/
static void *
CallCreateNewScreen(Display *dpy, int scrn, struct dri_screen *psc,
struct dri_display * driDpy)
{
void *psp = NULL;
drm_handle_t hSAREA;
drmAddress pSAREA = MAP_FAILED;
char *BusID;
__DRIversion ddx_version;
__DRIversion dri_version;
__DRIversion drm_version;
__DRIframebuffer framebuffer;
int fd = -1;
int status;
drm_magic_t magic;
drmVersionPtr version;
int newlyopened;
char *driverName;
drm_handle_t hFB;
int junk;
const __DRIconfig **driver_configs;
struct glx_config *visual, *configs = NULL, *visuals = NULL;
/* DRI protocol version. */
dri_version.major = driDpy->driMajor;
dri_version.minor = driDpy->driMinor;
dri_version.patch = driDpy->driPatch;
framebuffer.base = MAP_FAILED;
framebuffer.dev_priv = NULL;
framebuffer.size = 0;
if (!XF86DRIOpenConnection(dpy, scrn, &hSAREA, &BusID)) {
ErrorMessageF("XF86DRIOpenConnection failed\n");
goto handle_error;
}
fd = drmOpenOnce(NULL, BusID, &newlyopened);
free(BusID); /* No longer needed */
if (fd < 0) {
ErrorMessageF("drmOpenOnce failed (%s)\n", strerror(-fd));
goto handle_error;
}
if (drmGetMagic(fd, &magic)) {
ErrorMessageF("drmGetMagic failed\n");
goto handle_error;
}
version = drmGetVersion(fd);
if (version) {
drm_version.major = version->version_major;
drm_version.minor = version->version_minor;
drm_version.patch = version->version_patchlevel;
drmFreeVersion(version);
}
else {
drm_version.major = -1;
drm_version.minor = -1;
drm_version.patch = -1;
}
if (newlyopened && !XF86DRIAuthConnection(dpy, scrn, magic)) {
ErrorMessageF("XF86DRIAuthConnection failed\n");
goto handle_error;
}
/* Get device name (like "radeon") and the ddx version numbers.
* We'll check the version in each DRI driver's "createNewScreen"
* function. */
if (!XF86DRIGetClientDriverName(dpy, scrn,
&ddx_version.major,
&ddx_version.minor,
&ddx_version.patch, &driverName)) {
ErrorMessageF("XF86DRIGetClientDriverName failed\n");
goto handle_error;
}
free(driverName); /* No longer needed. */
/*
* Get device-specific info. pDevPriv will point to a struct
* (such as DRIRADEONRec in xfree86/driver/ati/radeon_dri.h) that
* has information about the screen size, depth, pitch, ancilliary
* buffers, DRM mmap handles, etc.
*/
if (!XF86DRIGetDeviceInfo(dpy, scrn, &hFB, &junk,
&framebuffer.size, &framebuffer.stride,
&framebuffer.dev_priv_size,
&framebuffer.dev_priv)) {
ErrorMessageF("XF86DRIGetDeviceInfo failed\n");
goto handle_error;
}
framebuffer.width = DisplayWidth(dpy, scrn);
framebuffer.height = DisplayHeight(dpy, scrn);
/* Map the framebuffer region. */
status = drmMap(fd, hFB, framebuffer.size,
(drmAddressPtr) & framebuffer.base);
if (status != 0) {
ErrorMessageF("drmMap of framebuffer failed (%s)\n", strerror(-status));
goto handle_error;
}
/* Map the SAREA region. Further mmap regions may be setup in
* each DRI driver's "createNewScreen" function.
*/
status = drmMap(fd, hSAREA, SAREA_MAX, &pSAREA);
if (status != 0) {
ErrorMessageF("drmMap of SAREA failed (%s)\n", strerror(-status));
goto handle_error;
}
psp = (*psc->legacy->createNewScreen) (scrn,
&ddx_version,
&dri_version,
&drm_version,
&framebuffer,
pSAREA,
fd,
loader_extensions,
&driver_configs, psc);
if (psp == NULL) {
ErrorMessageF("Calling driver entry point failed\n");
goto handle_error;
}
configs = driConvertConfigs(psc->core, psc->base.configs, driver_configs);
visuals = driConvertConfigs(psc->core, psc->base.visuals, driver_configs);
if (!configs || !visuals)
goto handle_error;
glx_config_destroy_list(psc->base.configs);
psc->base.configs = configs;
glx_config_destroy_list(psc->base.visuals);
psc->base.visuals = visuals;
psc->driver_configs = driver_configs;
/* Visuals with depth != screen depth are subject to automatic compositing
* in the X server, so DRI1 can't render to them properly. Mark them as
* non-conformant to prevent apps from picking them up accidentally.
*/
for (visual = psc->base.visuals; visual; visual = visual->next) {
XVisualInfo template;
static int
dri2_connect(Display *display)
{
xcb_dri2_query_version_cookie_t query_version_cookie;
xcb_dri2_query_version_reply_t *query_version_reply;
xcb_dri2_connect_cookie_t connect_cookie;
xcb_dri2_connect_reply_t *connect_reply;
xcb_dri2_authenticate_cookie_t auth_cookie;
xcb_dri2_authenticate_reply_t *auth_reply;
xcb_screen_t *root;
xcb_connection_t *c = XGetXCBConnection(display);
drm_magic_t magic;
const xcb_query_extension_reply_t *dri2_reply;
char *device_name;
int len;
root = xcb_aux_get_screen(c, DefaultScreen(display));
dri2_reply = xcb_get_extension_data(c, &xcb_dri2_id);
if (!dri2_reply) {
XVMC_ERR("DRI2 required");
return BadValue;
}
/* Query the extension and make our first use of it at the same time. */
query_version_cookie = xcb_dri2_query_version(c, 1, 0);
connect_cookie = xcb_dri2_connect(c, root->root, DRI2DriverDRI);
query_version_reply =
xcb_dri2_query_version_reply(c, query_version_cookie, NULL);
connect_reply = xcb_dri2_connect_reply(c, connect_cookie, NULL);
if (!query_version_reply) {
XVMC_ERR("DRI2 required");
return BadValue;
}
free(query_version_reply);
len = xcb_dri2_connect_device_name_length(connect_reply);
device_name = malloc(len + 1);
if (!device_name) {
XVMC_ERR("malloc failure");
return BadAlloc;
}
strncpy(device_name, xcb_dri2_connect_device_name(connect_reply), len);
device_name[len] = 0;
xvmc_driver->fd = open(device_name, O_RDWR);
free(device_name);
free(connect_reply);
if (xvmc_driver->fd < 0) {
XVMC_ERR("Failed to open drm device: %s\n", strerror(errno));
return BadValue;
}
if (drmGetMagic(xvmc_driver->fd, &magic)) {
XVMC_ERR("Failed to get magic\n");
return BadValue;
}
auth_cookie = xcb_dri2_authenticate(c, root->root, magic);
auth_reply = xcb_dri2_authenticate_reply(c, auth_cookie, NULL);
if (!auth_reply) {
XVMC_ERR("Failed to authenticate magic %d\n", magic);
return BadValue;
}
free(auth_reply);
return Success;
}