예제 #1
0
static EGLBoolean
dri2_initialize_x11_dri2(_EGLDriver *drv, _EGLDisplay *disp)
{
   struct dri2_egl_display *dri2_dpy;

   drv->API.CreateWindowSurface = dri2_create_window_surface;
   drv->API.CreatePixmapSurface = dri2_create_pixmap_surface;
   drv->API.CreatePbufferSurface = dri2_create_pbuffer_surface;
   drv->API.DestroySurface = dri2_destroy_surface;
   drv->API.SwapBuffers = dri2_swap_buffers;
   drv->API.CopyBuffers = dri2_copy_buffers;
   drv->API.CreateImageKHR = dri2_x11_create_image_khr;
   drv->API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
   drv->API.PostSubBufferNV = dri2_post_sub_buffer;
   drv->API.SwapInterval = dri2_swap_interval;

   dri2_dpy = calloc(1, sizeof *dri2_dpy);
   if (!dri2_dpy)
      return _eglError(EGL_BAD_ALLOC, "eglInitialize");

   disp->DriverData = (void *) dri2_dpy;
   if (disp->PlatformDisplay == NULL) {
      dri2_dpy->conn = xcb_connect(0, 0);
   } else {
      dri2_dpy->conn = XGetXCBConnection((Display *) disp->PlatformDisplay);
   }

   if (xcb_connection_has_error(dri2_dpy->conn)) {
      _eglLog(_EGL_WARNING, "DRI2: xcb_connect failed");
      goto cleanup_dpy;
   }

   if (dri2_dpy->conn) {
      if (!dri2_connect(dri2_dpy))
	 goto cleanup_conn;
   }

   if (!dri2_load_driver(disp))
      goto cleanup_conn;

#ifdef O_CLOEXEC
   dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR | O_CLOEXEC);
   if (dri2_dpy->fd == -1 && errno == EINVAL)
#endif
   {
      dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR);
      if (dri2_dpy->fd != -1)
         fcntl(dri2_dpy->fd, F_SETFD, fcntl(dri2_dpy->fd, F_GETFD) |
            FD_CLOEXEC);
   }
   if (dri2_dpy->fd == -1) {
      _eglLog(_EGL_WARNING,
	      "DRI2: could not open %s (%s)", dri2_dpy->device_name,
              strerror(errno));
      goto cleanup_driver;
   }

   if (dri2_dpy->conn) {
      if (!dri2_authenticate(disp))
	 goto cleanup_fd;
   }

   if (dri2_dpy->dri2_minor >= 1) {
      dri2_dpy->dri2_loader_extension.base.name = __DRI_DRI2_LOADER;
      dri2_dpy->dri2_loader_extension.base.version = 3;
      dri2_dpy->dri2_loader_extension.getBuffers = dri2_get_buffers;
      dri2_dpy->dri2_loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
      dri2_dpy->dri2_loader_extension.getBuffersWithFormat =
	 dri2_get_buffers_with_format;
   } else {
      dri2_dpy->dri2_loader_extension.base.name = __DRI_DRI2_LOADER;
      dri2_dpy->dri2_loader_extension.base.version = 2;
      dri2_dpy->dri2_loader_extension.getBuffers = dri2_get_buffers;
      dri2_dpy->dri2_loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
      dri2_dpy->dri2_loader_extension.getBuffersWithFormat = NULL;
   }
      
   dri2_dpy->extensions[0] = &dri2_dpy->dri2_loader_extension.base;
   dri2_dpy->extensions[1] = &image_lookup_extension.base;
   dri2_dpy->extensions[2] = NULL;

   dri2_dpy->swap_available = (dri2_dpy->dri2_minor >= 2);
   dri2_dpy->invalidate_available = (dri2_dpy->dri2_minor >= 3);

   if (!dri2_create_screen(disp))
      goto cleanup_fd;

   dri2_setup_swap_interval(dri2_dpy);

   disp->Extensions.KHR_image_pixmap = EGL_TRUE;
   disp->Extensions.NOK_swap_region = EGL_TRUE;
   disp->Extensions.NOK_texture_from_pixmap = EGL_TRUE;
   disp->Extensions.NV_post_sub_buffer = EGL_TRUE;

#ifdef HAVE_WAYLAND_PLATFORM
   disp->Extensions.WL_bind_wayland_display = EGL_TRUE;
#endif

   if (dri2_dpy->conn) {
      if (!dri2_add_configs_for_visuals(dri2_dpy, disp))
	 goto cleanup_configs;
   }

   dri2_dpy->authenticate = dri2_x11_authenticate;

   /* we're supporting EGL 1.4 */
   disp->VersionMajor = 1;
   disp->VersionMinor = 4;

   return EGL_TRUE;

 cleanup_configs:
   _eglCleanupDisplay(disp);
   dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
 cleanup_fd:
   close(dri2_dpy->fd);
 cleanup_driver:
   dlclose(dri2_dpy->driver);
 cleanup_conn:
   if (disp->PlatformDisplay == NULL)
      xcb_disconnect(dri2_dpy->conn);
 cleanup_dpy:
   free(dri2_dpy);

   return EGL_FALSE;
}
/*
* Function: XvMCCreateContext
* Description: Create a XvMC context for the given surface parameters.
* Arguments:
*   display - Connection to the X server.
*   port - XvPortID to use as avertised by the X connection.
*   surface_type_id - Unique identifier for the Surface type.
*   width - Width of the surfaces.
*   height - Height of the surfaces.
*   flags - one or more of the following
*      XVMC_DIRECT - A direct rendered context is requested.
*
* Notes: surface_type_id and width/height parameters must match those
*        returned by XvMCListSurfaceTypes.
* Returns: Status
*/
_X_EXPORT Status XvMCCreateContext(Display * display, XvPortID port,
				   int surface_type_id, int width, int height,
				   int flags, XvMCContext * context)
{
	Status ret;
	CARD32 *priv_data = NULL;
	struct intel_xvmc_hw_context *comm;
	int major, minor;
	int error_base;
	int event_base;
	int priv_count;

	/* Verify Obvious things first */
	if (!display || !context)
		return BadValue;

	if (!(flags & XVMC_DIRECT)) {
		XVMC_ERR("Indirect Rendering not supported! Using Direct.");
		return BadValue;
	}

	/*
	   Width, Height, and flags are checked against surface_type_id
	   and port for validity inside the X server, no need to check
	   here.
	 */
	context->surface_type_id = surface_type_id;
	context->width = (unsigned short)((width + 15) & ~15);
	context->height = (unsigned short)((height + 15) & ~15);
	context->flags = flags;
	context->port = port;

	if (!XvMCQueryExtension(display, &event_base, &error_base)) {
		XVMC_ERR("XvMCExtension is not available!");
		return BadValue;
	}

	ret = XvMCQueryVersion(display, &major, &minor);
	if (ret) {
		XVMC_ERR
		    ("XvMCQueryVersion Failed, unable to determine protocol version.");
		return ret;
	}

	/* XXX: major and minor could be checked in future for XvMC
	 * protocol capability (i.e H.264/AVC decode available)
	 */

	/*
	   Pass control to the X server to create a drm_context_t for us and
	   validate the with/height and flags.
	 */
	if ((ret =
	     _xvmc_create_context(display, context, &priv_count, &priv_data))) {
		XVMC_ERR("Unable to create XvMC Context.");
		return ret;
	}

	comm = (struct intel_xvmc_hw_context *)priv_data;

	if (xvmc_driver == NULL || xvmc_driver->type != comm->type) {
		switch (comm->type) {
		case XVMC_I915_MPEG2_MC:
			xvmc_driver = &i915_xvmc_mc_driver;
			break;
		case XVMC_I965_MPEG2_MC:
			xvmc_driver = &i965_xvmc_mc_driver;
			break;
		case XVMC_I965_MPEG2_VLD:
			xvmc_driver = &xvmc_vld_driver;
			break;
		case XVMC_I945_MPEG2_VLD:
		default:
			XVMC_ERR("unimplemented xvmc type %d", comm->type);
			XFree(priv_data);
			priv_data = NULL;
			return BadValue;
		}
	}

	if (xvmc_driver == NULL || xvmc_driver->type != comm->type) {
		XVMC_ERR("fail to load xvmc driver for type %d\n", comm->type);
		return BadValue;
	}

	XVMC_INFO("decoder type is %s", intel_xvmc_decoder_string(comm->type));

	/* check DRI2 */
	ret = Success;
	xvmc_driver->fd = -1;

	ret = dri2_connect(display);
	if (ret != Success) {
		XFree(priv_data);
		context->privData = NULL;
		if (xvmc_driver->fd >= 0)
			close(xvmc_driver->fd);
		xvmc_driver = NULL;
		return ret;
	}

	if ((xvmc_driver->bufmgr =
	     intel_bufmgr_gem_init(xvmc_driver->fd, 1024 * 64)) == NULL) {
		XVMC_ERR("Can't init bufmgr\n");
		return BadAlloc;
	}
	drm_intel_bufmgr_gem_enable_reuse(xvmc_driver->bufmgr);

	/* call driver hook.
	 * driver hook should free priv_data after return if success.*/
	ret =
	    (xvmc_driver->create_context) (display, context, priv_count,
					   priv_data);
	if (ret) {
		XVMC_ERR("driver create context failed\n");
		XFree(priv_data);
		context->privData = NULL;
		xvmc_driver = NULL;
		return ret;
	}

	pthread_mutex_init(&xvmc_driver->ctxmutex, NULL);
	intelInitBatchBuffer();
	intel_xvmc_dump_open();

	return Success;
}