BOOL
DRI2FallbackOpen(Display *dpy, int screen, int *device_fd)
{
char *device;
int fd;
Window root = RootWindow(dpy, screen);
drm_auth_t auth;
if (!DRI2Connect(dpy, root, DRI2DriverDRI, &device))
return FALSE;
fd = open(device, O_RDWR);
HeapFree(GetProcessHeap(), 0, device);
if (fd < 0)
return FALSE;
if (ioctl(fd, DRM_IOCTL_GET_MAGIC, &auth) != 0) {
close(fd);
return FALSE;
}
if (!DRI2Authenticate(dpy, root, auth.magic)) {
close(fd);
return FALSE;
}
*device_fd = fd;
return TRUE;
}
int dri2_open(Display *dpy)
{
drm_auth_t auth;
char *driver, *device;
int fd;
if (!DRI2Connect(dpy, DefaultRootWindow(dpy), &driver, &device))
return -1;
fd = open(device, O_RDWR);
if (fd < 0)
return -1;
if (drmIoctl(fd, DRM_IOCTL_GET_MAGIC, &auth))
goto err_fd;
if (!DRI2Authenticate(dpy, DefaultRootWindow(dpy), auth.magic))
goto err_fd;
return fd;
err_fd:
close(fd);
return -1;
}
int
x11_screen_authenticate(struct x11_screen *xscr, uint32_t id)
{
boolean authenticated;
authenticated = DRI2Authenticate(xscr->dpy,
RootWindow(xscr->dpy, xscr->number), id);
return authenticated ? 0 : -1;
}
/**
* 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 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;
}
static int
ProcDRI2Authenticate(ClientPtr client)
{
REQUEST(xDRI2AuthenticateReq);
xDRI2AuthenticateReply rep;
DrawablePtr pDraw;
int status;
REQUEST_SIZE_MATCH(xDRI2AuthenticateReq);
if (!validDrawable(client, stuff->window, DixGetAttrAccess,
&pDraw, &status))
return status;
rep.type = X_Reply;
rep.sequenceNumber = client->sequence;
rep.length = 0;
rep.authenticated = DRI2Authenticate(pDraw->pScreen, stuff->magic);
WriteToClient(client, sizeof(xDRI2AuthenticateReply), &rep);
return Success;
}
static int dri2_open(Display *dpy)
{
drm_auth_t auth;
char *driver, *device;
int fd;
if (!DRI2Connect(dpy, DefaultRootWindow(dpy), &driver, &device))
return -1;
printf ("Connecting to %s driver on %s\n", driver, device);
fd = open("/dev/dri/card0", O_RDWR);
if (fd < 0)
return -1;
if (drmIoctl(fd, DRM_IOCTL_GET_MAGIC, &auth))
return -1;
if (!DRI2Authenticate(dpy, DefaultRootWindow(dpy), auth.magic))
return -1;
return fd;
}
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;
}
Bool ephyrDRI2Authenticate(ScreenPtr pScreen, drm_magic_t magic)
{
Display *dpy = hostx_get_display () ;
return DRI2Authenticate(dpy, RootWindow(dpy, DefaultScreen(dpy)), magic);
}
