]> git.sesse.net Git - vlc/blobdiff - modules/video_output/xcb/xvideo.c
XCB: reset the X11 screen saver when displaying a picture
[vlc] / modules / video_output / xcb / xvideo.c
index 5c07cde937bd88bd19f8e3a221db91ac68ebbf06..9a0ce12de0be9c854ec5db4fa865c403a3a6a437 100644 (file)
@@ -7,7 +7,7 @@
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2.0
+ * as published by the Free Software Foundation; either version 2
  * of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ -15,7 +15,7 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU Lesser General Public
+ * You should have received a copy of the GNU General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  ****************************************************************************/
 #include <vlc_plugin.h>
 #include <vlc_vout_display.h>
 #include <vlc_picture_pool.h>
+#include <vlc_dialog.h>
 
 #include "xcb_vlc.h"
 
-#define DISPLAY_TEXT N_("X11 display")
-#define DISPLAY_LONGTEXT N_( \
-    "X11 hardware display to use. By default VLC will " \
-    "use the value of the DISPLAY environment variable.")
+#define ADAPTOR_TEXT N_("XVideo adaptor number")
+#define ADAPTOR_LONGTEXT N_( \
+    "XVideo hardware adaptor to use. By default, VLC will " \
+    "use the first functional adaptor.")
 
 #define SHM_TEXT N_("Use shared memory")
 #define SHM_LONGTEXT N_( \
@@ -61,23 +62,21 @@ vlc_module_begin ()
     set_capability ("vout display", 155)
     set_callbacks (Open, Close)
 
-    add_string ("x11-display", NULL, NULL,
-                DISPLAY_TEXT, DISPLAY_LONGTEXT, true)
-        add_deprecated_alias ("xvideo-display")
+    add_integer ("xvideo-adaptor", -1, NULL,
+                 ADAPTOR_TEXT, ADAPTOR_LONGTEXT, true)
     add_bool ("x11-shm", true, NULL, SHM_TEXT, SHM_LONGTEXT, true)
         add_deprecated_alias ("xvideo-shm")
-    add_shortcut ("xcb-xv")
-    add_shortcut ("xv")
+    add_shortcut ("xcb-xv", "xv", "xvideo", "xid")
 vlc_module_end ()
 
-#define MAX_PICTURES (VOUT_MAX_PICTURES)
+#define MAX_PICTURES (128)
 
 struct vout_display_sys_t
 {
     xcb_connection_t *conn;
-    xcb_xv_query_adaptors_reply_t *adaptors;
     vout_window_t *embed;/* VLC window */
 
+    xcb_cursor_t cursor; /* blank cursor */
     xcb_window_t window; /* drawable X window */
     xcb_gcontext_t gc;   /* context to put images */
     xcb_xv_port_t port;  /* XVideo port */
@@ -85,14 +84,16 @@ struct vout_display_sys_t
     uint16_t width;      /* display width */
     uint16_t height;     /* display height */
     uint32_t data_size;  /* picture byte size (for non-SHM) */
+    bool     swap_uv;    /* U/V pointer must be swapped in a picture */
     bool shm;            /* whether to use MIT-SHM */
+    bool visible;        /* whether it makes sense to draw at all */
 
     xcb_xv_query_image_attributes_reply_t *att;
     picture_pool_t *pool; /* picture pool */
     picture_resource_t resource[MAX_PICTURES];
 };
 
-static picture_t *Get (vout_display_t *);
+static picture_pool_t *Pool (vout_display_t *, unsigned);
 static void Display (vout_display_t *, picture_t *);
 static int Control (vout_display_t *, int, va_list);
 static void Manage (vout_display_t *);
@@ -106,22 +107,25 @@ static bool CheckXVideo (vout_display_t *vd, xcb_connection_t *conn)
     xcb_xv_query_extension_cookie_t ck = xcb_xv_query_extension (conn);
     bool ok = false;
 
+    /* We need XVideo 2.2 for PutImage */
     r = xcb_xv_query_extension_reply (conn, ck, NULL);
-    if (r != NULL)
-    {   /* We need XVideo 2.2 for PutImage */
-        if ((r->major > 2) || (r->major == 2 && r->minor >= 2))
-        {
-            msg_Dbg (vd, "using XVideo extension v%"PRIu8".%"PRIu8,
-                     r->major, r->minor);
-            ok = true;
-        }
-        else
-            msg_Dbg (vd, "XVideo extension too old (v%"PRIu8".%"PRIu8,
-                     r->major, r->minor);
-        free (r);
-    }
-    else
+    if (r == NULL)
         msg_Dbg (vd, "XVideo extension not available");
+    else
+    if (r->major != 2)
+        msg_Dbg (vd, "XVideo extension v%"PRIu8".%"PRIu8" unknown",
+                 r->major, r->minor);
+    else
+    if (r->minor < 2)
+        msg_Dbg (vd, "XVideo extension v%"PRIu8".%"PRIu8" too old",
+                 r->major, r->minor);
+    else
+    {
+        msg_Dbg (vd, "using XVideo extension v%"PRIu8".%"PRIu8,
+                 r->major, r->minor);
+        ok = true;
+    }
+    free (r);
     return ok;
 }
 
@@ -142,6 +146,8 @@ static vlc_fourcc_t ParseFormat (vout_display_t *vd,
               case 32:
                 if (f->depth == 24)
                     return VLC_CODEC_RGB32;
+                if (f->depth == 32)
+                    return 0; /* ARGB -> VLC cannot do that currently */
                 break;
               case 24:
                 if (f->depth == 24)
@@ -245,19 +251,34 @@ FindFormat (vout_display_t *vd,
         if (chroma != ParseFormat (vd, f))
             continue;
 
+        /* VLC pads scanline to 16 pixels internally */
+        unsigned width = fmt->i_width;
+        unsigned height = fmt->i_height;
         xcb_xv_query_image_attributes_reply_t *i;
         i = xcb_xv_query_image_attributes_reply (conn,
             xcb_xv_query_image_attributes (conn, port, f->id,
-                fmt->i_width, fmt->i_height), NULL);
+                                           width, height), NULL);
         if (i == NULL)
             continue;
 
-        if (i->width != fmt->i_width
-         || i->height != fmt->i_height)
+        if (i->width != width || i->height != height)
         {
             msg_Warn (vd, "incompatible size %ux%u -> %"PRIu32"x%"PRIu32,
                       fmt->i_width, fmt->i_height,
                       i->width, i->height);
+            var_Create (vd->p_libvlc, "xvideo-resolution-error", VLC_VAR_BOOL);
+            if (!var_GetBool (vd->p_libvlc, "xvideo-resolution-error"))
+            {
+                dialog_FatalWait (vd, _("Video acceleration not available"),
+                    _("Your video output acceleration driver does not support "
+                      "the required resolution: %ux%u pixels. The maximum "
+                      "supported resolution is %"PRIu32"x%"PRIu32".\n"
+                      "Video output acceleration will be disabled. However, "
+                      "rendering videos with overly large resolution "
+                      "may cause severe performance degration."),
+                                  width, height, i->width, i->height);
+                var_SetBool (vd->p_libvlc, "xvideo-resolution-error", true);
+            }
             free (i);
             continue;
         }
@@ -268,18 +289,6 @@ FindFormat (vout_display_t *vd,
 }
 
 
-/**
- * Get a list of XVideo adaptors for a given window.
- */
-static xcb_xv_query_adaptors_reply_t *GetAdaptors (vout_window_t *wnd,
-                                                   xcb_connection_t *conn)
-{
-    xcb_xv_query_adaptors_cookie_t ck;
-
-    ck = xcb_xv_query_adaptors (conn, wnd->handle.xid);
-    return xcb_xv_query_adaptors_reply (conn, ck, NULL);
-}
-
 /**
  * Probe the X server.
  */
@@ -287,73 +296,82 @@ static int Open (vlc_object_t *obj)
 {
     vout_display_t *vd = (vout_display_t *)obj;
     vout_display_sys_t *p_sys = malloc (sizeof (*p_sys));
+
+    if (!var_InheritBool (obj, "overlay"))
+        return VLC_EGENERIC;
     if (p_sys == NULL)
         return VLC_ENOMEM;
 
     vd->sys = p_sys;
 
     /* Connect to X */
-    p_sys->conn = Connect (obj);
-    if (p_sys->conn == NULL)
-    {
-        free (p_sys);
-        return VLC_EGENERIC;
-    }
-
-    if (!CheckXVideo (vd, p_sys->conn))
-    {
-        msg_Warn (vd, "Please enable XVideo 2.2 for faster video display");
-        xcb_disconnect (p_sys->conn);
-        free (p_sys);
-        return VLC_EGENERIC;
-    }
-
+    xcb_connection_t *conn;
     const xcb_screen_t *screen;
-    p_sys->embed = GetWindow (vd, p_sys->conn, &screen, &p_sys->shm);
+    uint8_t depth;
+    p_sys->embed = GetWindow (vd, &conn, &screen, &depth);
     if (p_sys->embed == NULL)
     {
-        xcb_disconnect (p_sys->conn);
         free (p_sys);
         return VLC_EGENERIC;
     }
 
-    /* */
+    p_sys->conn = conn;
     p_sys->att = NULL;
     p_sys->pool = NULL;
+    p_sys->swap_uv = false;
+
+    if (!CheckXVideo (vd, conn))
+    {
+        msg_Warn (vd, "Please enable XVideo 2.2 for faster video display");
+        goto error;
+    }
+
+    p_sys->window = xcb_generate_id (conn);
+    xcb_pixmap_t pixmap = xcb_generate_id (conn);
 
     /* Cache adaptors infos */
-    p_sys->adaptors = GetAdaptors (p_sys->embed, p_sys->conn);
-    if (p_sys->adaptors == NULL)
+    xcb_xv_query_adaptors_reply_t *adaptors =
+        xcb_xv_query_adaptors_reply (conn,
+            xcb_xv_query_adaptors (conn, p_sys->embed->handle.xid), NULL);
+    if (adaptors == NULL)
         goto error;
 
+    int forced_adaptor = var_InheritInteger (obj, "xvideo-adaptor");
+
     /* */
     video_format_t fmt = vd->fmt;
-    bool found_adaptor = false;
+    p_sys->port = 0;
 
-    /* FIXME: check max image size */
     xcb_xv_adaptor_info_iterator_t it;
-    for (it = xcb_xv_query_adaptors_info_iterator (p_sys->adaptors);
+    for (it = xcb_xv_query_adaptors_info_iterator (adaptors);
          it.rem > 0;
          xcb_xv_adaptor_info_next (&it))
     {
         const xcb_xv_adaptor_info_t *a = it.data;
+        char *name;
+
+        if (forced_adaptor != -1 && forced_adaptor != 0)
+        {
+            forced_adaptor--;
+            continue;
+        }
 
-        /* FIXME: Open() should fail if none of the ports are usable to VLC */
         if (!(a->type & XCB_XV_TYPE_IMAGE_MASK))
             continue;
 
-        xcb_xv_list_image_formats_reply_t *r;
-        r = xcb_xv_list_image_formats_reply (p_sys->conn,
-            xcb_xv_list_image_formats (p_sys->conn, a->base_id), NULL);
+        xcb_xv_list_image_formats_reply_t *r =
+            xcb_xv_list_image_formats_reply (conn,
+                xcb_xv_list_image_formats (conn, a->base_id), NULL);
         if (r == NULL)
             continue;
 
-        const xcb_xv_image_format_info_t *xfmt;
-
-        /* */
+        /* Look for an image format */
+        const xcb_xv_image_format_info_t *xfmt = NULL;
         const vlc_fourcc_t *chromas, chromas_default[] = {
             fmt.i_chroma,
+            VLC_CODEC_RGB32,
             VLC_CODEC_RGB24,
+            VLC_CODEC_RGB16,
             VLC_CODEC_RGB15,
             VLC_CODEC_YUYV,
             0
@@ -363,29 +381,48 @@ static int Open (vlc_object_t *obj)
         else
             chromas = chromas_default;
 
+        vlc_fourcc_t chroma;
         for (size_t i = 0; chromas[i]; i++)
         {
-            vlc_fourcc_t chroma = chromas[i];
+            chroma = chromas[i];
+
+            /* Oink oink! */
+            if ((chroma == VLC_CODEC_I420 || chroma == VLC_CODEC_YV12)
+             && a->name_size >= 4
+             && !memcmp ("OMAP", xcb_xv_adaptor_info_name (a), 4))
+            {
+                msg_Dbg (vd, "skipping slow I420 format");
+                continue; /* OMAP framebuffer sucks at YUV 4:2:0 */
+            }
+
             xfmt = FindFormat (vd, chroma, &fmt, a->base_id, r, &p_sys->att);
             if (xfmt != NULL)
             {
-                fmt.i_chroma = chroma;
-                goto found_format;
+                p_sys->id = xfmt->id;
+                p_sys->swap_uv = vlc_fourcc_AreUVPlanesSwapped (fmt.i_chroma,
+                                                                chroma);
+                if (!p_sys->swap_uv)
+                    fmt.i_chroma = chroma;
+                if (xfmt->type == XCB_XV_IMAGE_FORMAT_INFO_TYPE_RGB)
+                {
+                    fmt.i_rmask = xfmt->red_mask;
+                    fmt.i_gmask = xfmt->green_mask;
+                    fmt.i_bmask = xfmt->blue_mask;
+                }
+                break;
             }
         }
         free (r);
-        continue;
+        if (xfmt == NULL) /* No acceptable image formats */
+            continue;
 
-    found_format:
         /* Grab a port */
-        /* XXX: assume all of an adapter's ports have the same formats */
         for (unsigned i = 0; i < a->num_ports; i++)
         {
              xcb_xv_port_t port = a->base_id + i;
              xcb_xv_grab_port_reply_t *gr =
-                 xcb_xv_grab_port_reply (p_sys->conn,
-                     xcb_xv_grab_port (p_sys->conn, port,
-                                       XCB_CURRENT_TIME), NULL);
+                 xcb_xv_grab_port_reply (conn,
+                     xcb_xv_grab_port (conn, port, XCB_CURRENT_TIME), NULL);
              uint8_t result = gr ? gr->result : 0xff;
 
              free (gr);
@@ -394,54 +431,83 @@ static int Open (vlc_object_t *obj)
                  p_sys->port = port;
                  goto grabbed_port;
              }
-             msg_Dbg (vd, "cannot grab port %"PRIu32, port);
+             msg_Dbg (vd, "cannot grab port %"PRIu32": Xv error %"PRIu8, port,
+                      result);
         }
-        continue;
+        continue; /* No usable port */
 
     grabbed_port:
+        /* Found port - initialize selected format */
+        name = strndup (xcb_xv_adaptor_info_name (a), a->name_size);
+        if (name != NULL)
+        {
+            msg_Dbg (vd, "using adaptor %s", name);
+            free (name);
+        }
         msg_Dbg (vd, "using port %"PRIu32, p_sys->port);
-
-        p_sys->id = xfmt->id;
         msg_Dbg (vd, "using image format 0x%"PRIx32, p_sys->id);
-        if (xfmt->type == XCB_XV_IMAGE_FORMAT_INFO_TYPE_RGB)
+
+        /* Look for an X11 visual, create a window */
+        xcb_xv_format_t *f = xcb_xv_adaptor_info_formats (a);
+        for (uint_fast16_t i = a->num_formats; i > 0; i--, f++)
         {
-            fmt.i_rmask = xfmt->red_mask;
-            fmt.i_gmask = xfmt->green_mask;
-            fmt.i_bmask = xfmt->blue_mask;
+            if (f->depth != screen->root_depth)
+                continue; /* this would fail anyway */
+
+            uint32_t mask =
+                XCB_CW_BACK_PIXMAP |
+                XCB_CW_BACK_PIXEL |
+                XCB_CW_BORDER_PIXMAP |
+                XCB_CW_BORDER_PIXEL |
+                XCB_CW_EVENT_MASK |
+                XCB_CW_COLORMAP;
+            const uint32_t list[] = {
+                /* XCB_CW_BACK_PIXMAP */
+                pixmap,
+                /* XCB_CW_BACK_PIXEL */
+                screen->black_pixel,
+                /* XCB_CW_BORDER_PIXMAP */
+                pixmap,
+                /* XCB_CW_BORDER_PIXEL */
+                screen->black_pixel,
+                /* XCB_CW_EVENT_MASK */
+                XCB_EVENT_MASK_VISIBILITY_CHANGE,
+                /* XCB_CW_COLORMAP */
+                screen->default_colormap,
+            };
+
+            xcb_void_cookie_t c;
+
+            xcb_create_pixmap (conn, f->depth, pixmap, screen->root, 1, 1);
+            c = xcb_create_window_checked (conn, f->depth, p_sys->window,
+                 p_sys->embed->handle.xid, 0, 0, 1, 1, 0,
+                 XCB_WINDOW_CLASS_INPUT_OUTPUT, f->visual, mask, list);
+
+            if (!CheckError (vd, conn, "cannot create X11 window", c))
+            {
+                msg_Dbg (vd, "using X11 visual ID 0x%"PRIx32
+                         " (depth: %"PRIu8")", f->visual, f->depth);
+                msg_Dbg (vd, "using X11 window 0x%08"PRIx32, p_sys->window);
+                goto created_window;
+            }
         }
-        else
-        if (xfmt->num_planes == 3
-         && !strcmp ((const char *)xfmt->vcomp_order, "YVU"))
-            fmt.i_chroma = VLC_CODEC_YV12;
-        free (r);
-        found_adaptor = true;
+        xcb_xv_ungrab_port (conn, p_sys->port, XCB_CURRENT_TIME);
+        p_sys->port = 0;
+        msg_Dbg (vd, "no usable X11 visual");
+        continue; /* No workable XVideo format (visual/depth) */
+
+    created_window:
         break;
     }
-    if (!found_adaptor)
+    free (adaptors);
+    if (!p_sys->port)
     {
         msg_Err (vd, "no available XVideo adaptor");
         goto error;
     }
-
-    /* Create window */
+    else
     {
-        const uint32_t mask =
-            /* XCB_CW_EVENT_MASK */
-            XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE |
-            XCB_EVENT_MASK_POINTER_MOTION;
-        xcb_void_cookie_t c;
-        xcb_window_t window = xcb_generate_id (p_sys->conn);
-
-        c = xcb_create_window_checked (p_sys->conn, screen->root_depth, window,
-                                       p_sys->embed->handle.xid, 0, 0, 1, 1, 0,
-                                       XCB_WINDOW_CLASS_INPUT_OUTPUT,
-                                       screen->root_visual,
-                                       XCB_CW_EVENT_MASK, &mask);
-        if (CheckError (vd, p_sys->conn, "cannot create X11 window", c))
-            goto error;
-        p_sys->window = window;
-        msg_Dbg (vd, "using X11 window %08"PRIx32, p_sys->window);
-        xcb_map_window (p_sys->conn, window);
+        xcb_map_window (conn, p_sys->window);
 
         vout_display_place_t place;
 
@@ -450,40 +516,49 @@ static int Open (vlc_object_t *obj)
         p_sys->height = place.height;
 
         /* */
-        const uint32_t values[] = { place.x, place.y, place.width, place.height };
-        xcb_configure_window (p_sys->conn, p_sys->window,
+        const uint32_t values[] = {
+            place.x, place.y, place.width, place.height };
+        xcb_configure_window (conn, p_sys->window,
                               XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y |
-                              XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT,
+                              XCB_CONFIG_WINDOW_WIDTH |
+                              XCB_CONFIG_WINDOW_HEIGHT,
                               values);
     }
+    p_sys->visible = false;
 
     /* Create graphic context */
-    p_sys->gc = xcb_generate_id (p_sys->conn);
-    xcb_create_gc (p_sys->conn, p_sys->gc, p_sys->window, 0, NULL);
-    msg_Dbg (vd, "using X11 graphic context %08"PRIx32, p_sys->gc);
+    p_sys->gc = xcb_generate_id (conn);
+    xcb_create_gc (conn, p_sys->gc, p_sys->window, 0, NULL);
+    msg_Dbg (vd, "using X11 graphic context 0x%08"PRIx32, p_sys->gc);
 
-    /* */
-    p_sys->pool = NULL;
+    /* Create cursor */
+    p_sys->cursor = CreateBlankCursor (conn, screen);
+
+    CheckSHM (obj, conn, &p_sys->shm);
 
     /* */
     vout_display_info_t info = vd->info;
     info.has_pictures_invalid = false;
+    info.has_event_thread = true;
 
     /* Setup vout_display_t once everything is fine */
     vd->fmt = fmt;
     vd->info = info;
 
-    vd->get = Get;
+    vd->pool = Pool;
     vd->prepare = NULL;
     vd->display = Display;
     vd->control = Control;
     vd->manage = Manage;
 
     /* */
+    bool is_fullscreen = vd->cfg->is_fullscreen;
+    if (is_fullscreen && vout_window_SetFullScreen (p_sys->embed, true))
+        is_fullscreen = false;
+    vout_display_SendEventFullscreen (vd, is_fullscreen);
     unsigned width, height;
-    if (!GetWindowSize (p_sys->embed, p_sys->conn, &width, &height))
-        vout_display_SendEventDisplaySize (vd, width, height);
-    vout_display_SendEventFullscreen (vd, false);
+    if (!GetWindowSize (p_sys->embed, conn, &width, &height))
+        vout_display_SendEventDisplaySize (vd, width, height, is_fullscreen);
 
     return VLC_SUCCESS;
 
@@ -509,81 +584,94 @@ static void Close (vlc_object_t *obj)
 
             if (!res->p->p_pixels)
                 break;
-            PictureResourceFree (res, p_sys->conn);
+            PictureResourceFree (res, NULL);
         }
         picture_pool_Delete (p_sys->pool);
     }
 
+    /* show the default cursor */
+    xcb_change_window_attributes (p_sys->conn, p_sys->embed->handle.xid, XCB_CW_CURSOR,
+                                  &(uint32_t) { XCB_CURSOR_NONE });
+    xcb_flush (p_sys->conn);
+
     free (p_sys->att);
-    free (p_sys->adaptors);
-    vout_display_DeleteWindow (vd, p_sys->embed);
     xcb_disconnect (p_sys->conn);
+    vout_display_DeleteWindow (vd, p_sys->embed);
     free (p_sys);
 }
 
-/**
- * Return a direct buffer
- */
-static picture_t *Get (vout_display_t *vd)
+static void PoolAlloc (vout_display_t *vd, unsigned requested_count)
 {
     vout_display_sys_t *p_sys = vd->sys;
 
-    if (!p_sys->pool)
-    {
-        picture_t *pic = picture_New (vd->fmt.i_chroma,
-                                      p_sys->att->width, p_sys->att->height, 0);
-        if (!pic)
-            return NULL;
+    memset (p_sys->resource, 0, sizeof(p_sys->resource));
 
-        memset (p_sys->resource, 0, sizeof(p_sys->resource));
+    const uint32_t *pitches= xcb_xv_query_image_attributes_pitches (p_sys->att);
+    const uint32_t *offsets= xcb_xv_query_image_attributes_offsets (p_sys->att);
+    const unsigned num_planes= __MIN(p_sys->att->num_planes, PICTURE_PLANE_MAX);
+    p_sys->data_size = p_sys->att->data_size;
 
-        const uint32_t *offsets =
-            xcb_xv_query_image_attributes_offsets (p_sys->att);
-        p_sys->data_size = p_sys->att->data_size;
+    picture_t *pic_array[MAX_PICTURES];
+    requested_count = __MIN(requested_count, MAX_PICTURES);
 
-        unsigned count;
-        picture_t *pic_array[MAX_PICTURES];
-        for (count = 0; count < MAX_PICTURES; count++)
-        {
-            picture_resource_t *res = &p_sys->resource[count];
+    unsigned count;
+    for (count = 0; count < requested_count; count++)
+    {
+        picture_resource_t *res = &p_sys->resource[count];
 
-            for (int i = 0; i < pic->i_planes; i++)
-            {
-                res->p[i].i_lines = pic->p[i].i_lines; /* FIXME seems wrong*/
-                res->p[i].i_pitch = pic->p[i].i_pitch;
-            }
-            if (PictureResourceAlloc (vd, res, p_sys->att->data_size,
-                                      p_sys->conn, p_sys->shm))
-                break;
+        for (unsigned i = 0; i < num_planes; i++)
+        {
+            uint32_t data_size;
+            data_size = (i < num_planes - 1) ? offsets[i+1] : p_sys->data_size;
 
-            /* Allocate further planes as specified by XVideo */
-            /* We assume that offsets[0] is zero */
-            for (int i = 1; i < pic->i_planes; i++)
-                res->p[i].p_pixels = res->p[0].p_pixels + offsets[i];
-            pic_array[count] = picture_NewFromResource (&vd->fmt, res);
-            if (!pic_array[count])
-            {
-                PictureResourceFree (res, p_sys->conn);
-                memset (res, 0, sizeof(*res));
-                break;
-            }
+            res->p[i].i_lines = (data_size - offsets[i]) / pitches[i];
+            res->p[i].i_pitch = pitches[i];
         }
-        picture_Release (pic);
 
-        if (count == 0)
-            return NULL;
+        if (PictureResourceAlloc (vd, res, p_sys->att->data_size,
+                                  p_sys->conn, p_sys->shm))
+            break;
+
+        /* Allocate further planes as specified by XVideo */
+        /* We assume that offsets[0] is zero */
+        for (unsigned i = 1; i < num_planes; i++)
+            res->p[i].p_pixels = res->p[0].p_pixels + offsets[i];
+
+        if (p_sys->swap_uv)
+        {   /* YVU: swap U and V planes */
+            uint8_t *buf = res->p[2].p_pixels;
+            res->p[2].p_pixels = res->p[1].p_pixels;
+            res->p[1].p_pixels = buf;
+        }
 
-        p_sys->pool = picture_pool_New (count, pic_array);
-        if (!p_sys->pool)
+        pic_array[count] = picture_NewFromResource (&vd->fmt, res);
+        if (!pic_array[count])
         {
-            /* TODO release picture resources */
-            return NULL;
+            PictureResourceFree (res, p_sys->conn);
+            memset (res, 0, sizeof(*res));
+            break;
         }
-        /* FIXME should also do it in case of error ? */
-        xcb_flush (p_sys->conn);
     }
 
-    return picture_pool_Get (p_sys->pool);
+    if (count == 0)
+        return;
+
+    p_sys->pool = picture_pool_New (count, pic_array);
+    /* TODO release picture resources if NULL */
+    xcb_flush (p_sys->conn);
+}
+
+/**
+ * Return a direct buffer
+ */
+static picture_pool_t *Pool (vout_display_t *vd, unsigned requested_count)
+{
+    vout_display_sys_t *p_sys = vd->sys;
+
+    if (!p_sys->pool)
+        PoolAlloc (vd, requested_count);
+
+    return p_sys->pool;
 }
 
 /**
@@ -593,29 +681,42 @@ static void Display (vout_display_t *vd, picture_t *pic)
 {
     vout_display_sys_t *p_sys = vd->sys;
     xcb_shm_seg_t segment = pic->p_sys->segment;
+    xcb_void_cookie_t ck;
+
+    if (!p_sys->visible)
+        goto out;
+    xcb_force_screen_saver (p_sys->conn, XCB_SCREEN_SAVER_RESET);
 
     if (segment)
-        xcb_xv_shm_put_image (p_sys->conn, p_sys->port, p_sys->window,
-                              p_sys->gc, segment, p_sys->id, 0,
+        ck = xcb_xv_shm_put_image_checked (p_sys->conn, p_sys->port,
+                              p_sys->window, p_sys->gc, segment, p_sys->id, 0,
                    /* Src: */ vd->source.i_x_offset,
                               vd->source.i_y_offset,
                               vd->source.i_visible_width,
                               vd->source.i_visible_height,
                    /* Dst: */ 0, 0, p_sys->width, p_sys->height,
                 /* Memory: */ pic->p->i_pitch / pic->p->i_pixel_pitch,
-                              pic->p->i_visible_lines, false);
+                              pic->p->i_lines, false);
     else
-        xcb_xv_put_image (p_sys->conn, p_sys->port, p_sys->window,
+        ck = xcb_xv_put_image_checked (p_sys->conn, p_sys->port, p_sys->window,
                           p_sys->gc, p_sys->id,
                           vd->source.i_x_offset,
                           vd->source.i_y_offset,
                           vd->source.i_visible_width,
                           vd->source.i_visible_height,
                           0, 0, p_sys->width, p_sys->height,
-                          vd->source.i_width, vd->source.i_height,
+                          pic->p->i_pitch / pic->p->i_pixel_pitch,
+                          pic->p->i_lines,
                           p_sys->data_size, pic->p->p_pixels);
 
-    xcb_flush (p_sys->conn);
+    /* Wait for reply. See x11.c for rationale. */
+    xcb_generic_error_t *e = xcb_request_check (p_sys->conn, ck);
+    if (e != NULL)
+    {
+        msg_Dbg (vd, "%s: X11 error %d", "cannot put image", e->error_code);
+        free (e);
+    }
+out:
     picture_Release (pic);
 }
 
@@ -639,6 +740,7 @@ static int Control (vout_display_t *vd, int query, va_list ap)
     {
         const vout_display_cfg_t *cfg;
         const video_format_t *source;
+        bool is_forced = false;
 
         if (query == VOUT_DISPLAY_CHANGE_SOURCE_ASPECT
          || query == VOUT_DISPLAY_CHANGE_SOURCE_CROP)
@@ -650,10 +752,13 @@ static int Control (vout_display_t *vd, int query, va_list ap)
         {
             source = &vd->source;
             cfg = (const vout_display_cfg_t*)va_arg (ap, const vout_display_cfg_t *);
+            if (query == VOUT_DISPLAY_CHANGE_DISPLAY_SIZE)
+                is_forced = (bool)va_arg (ap, int);
         }
 
         /* */
         if (query == VOUT_DISPLAY_CHANGE_DISPLAY_SIZE
+         && is_forced
          && (cfg->display.width  != vd->cfg->display.width
            ||cfg->display.height != vd->cfg->display.height)
          && vout_window_SetSize (p_sys->embed,
@@ -676,18 +781,18 @@ static int Control (vout_display_t *vd, int query, va_list ap)
         xcb_flush (p_sys->conn);
         return VLC_SUCCESS;
     }
-    case VOUT_DISPLAY_CHANGE_ON_TOP:
+    case VOUT_DISPLAY_CHANGE_WINDOW_STATE:
     {
-        int on_top = (int)va_arg (ap, int);
-        return vout_window_SetOnTop (p_sys->embed, on_top);
+        unsigned state = va_arg (ap, unsigned);
+        return vout_window_SetState (p_sys->embed, state);
     }
 
-    /* TODO */
-#if 0
     /* Hide the mouse. It will be send when
      * vout_display_t::info.b_hide_mouse is false */
-    VOUT_DISPLAY_HIDE_MOUSE,
-#endif
+    case VOUT_DISPLAY_HIDE_MOUSE:
+        xcb_change_window_attributes (p_sys->conn, p_sys->embed->handle.xid,
+                                  XCB_CW_CURSOR, &(uint32_t){ p_sys->cursor });
+        return VLC_SUCCESS;
     case VOUT_DISPLAY_RESET_PICTURES:
         assert(0);
     default:
@@ -700,6 +805,6 @@ static void Manage (vout_display_t *vd)
 {
     vout_display_sys_t *p_sys = vd->sys;
 
-    ManageEvent (vd, p_sys->conn, p_sys->window);
+    ManageEvent (vd, p_sys->conn, &p_sys->visible);
 }