Attachment 11162 Details for Bug 12042 – first version of the patch sent to the mailing list

[patch] first version of the patch sent to the mailing list

Ephyr-multiple-screen-implementation-patch.diff (text/plain), 37.03 KB, created by Dodji Seketeli on 2007-08-17 10:52:20 UTC

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Creator: Dodji Seketeli

Created: 2007-08-17 10:52:20 UTC

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patch

obsolete

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>Subject: [PATCH] Ephyr multiple screen implementation
>Date: Mon, 6 Aug 2007 14:19:51 -0500
>Message-ID: <AD1781A3B7BFE44DA675CBF72E984D9903305999@daebe102.NOE.Nokia.com>
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>Thread-Topic: [PATCH] Ephyr multiple screen implementation
>Thread-Index: AcfYXsKHpTMwk4owRqyLYK3xQSRzrQ==
>From: <Andrew.Christian@nokia.com>
>To: <xorg@lists.freedesktop.org>
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>This patch adds multiple screen support to Xephyr.
>
>  - Andrew
>
>
>
>---
> hw/kdrive/ephyr/ephyr.c     |  106 ++++++++--
> hw/kdrive/ephyr/ephyr.h     |    2 +
> hw/kdrive/ephyr/ephyrinit.c |   46 ++++-
> hw/kdrive/ephyr/hostx.c     |  488
>++++++++++++++++++++++++++----------------
> hw/kdrive/ephyr/hostx.h     |   31 ++-
> 5 files changed, 448 insertions(+), 225 deletions(-)
>
>diff --git a/hw/kdrive/ephyr/ephyr.c b/hw/kdrive/ephyr/ephyr.c
>index e8001df..8bc40e8 100644
>--- a/hw/kdrive/ephyr/ephyr.c
>+++ b/hw/kdrive/ephyr/ephyr.c
>@@ -34,6 +34,7 @@
> #include "ephyr.h"
> 
> #include "inputstr.h"
>+#include "scrnintstr.h"
> 
> extern int KdTsPhyScreen;
> KdKeyboardInfo *ephyrKbd;
>@@ -83,7 +84,7 @@ ephyrScreenInitialize (KdScreenInfo *screen,
>EphyrScrPriv *scrpriv)
>   int width = 640, height = 480; 
>   unsigned long redMask, greenMask, blueMask;
>   
>-  if (hostx_want_screen_size(&width, &height) 
>+  if (hostx_want_screen_size( screen, &width, &height ) 
>       || !screen->width || !screen->height)
>     {
>       screen->width = width;
>@@ -99,13 +100,13 @@ ephyrScreenInitialize (KdScreenInfo *screen,
>EphyrScrPriv *scrpriv)
> 	  && (screen->fb[0].depth == 24 || screen->fb[0].depth == 16
> 	      || screen->fb[0].depth == 8))
> 	{
>-	  hostx_set_server_depth(screen->fb[0].depth);
>+	  hostx_set_server_depth( screen, screen->fb[0].depth );
> 	}
>       else 
> 	ErrorF("\nXephyr: requested screen depth not supported, setting
>to match hosts.\n");
>     }
>   
>-  screen->fb[0].depth = hostx_get_server_depth();
>+  screen->fb[0].depth = hostx_get_server_depth(screen);
>   screen->rate = 72;
>   
>   if (screen->fb[0].depth <= 8)
>@@ -146,7 +147,7 @@ ephyrScreenInitialize (KdScreenInfo *screen,
>EphyrScrPriv *scrpriv)
> 	  screen->fb[0].bitsPerPixel = 32;
> 	}
> 
>-      hostx_get_visual_masks (&redMask, &greenMask, &blueMask);
>+      hostx_get_visual_masks (screen, &redMask, &greenMask, &blueMask);
> 
>       screen->fb[0].redMask = (Pixel) redMask;
>       screen->fb[0].greenMask = (Pixel) greenMask;
>@@ -194,10 +195,8 @@ ephyrWindowLinear (ScreenPtr	pScreen,
>   EphyrPriv	    *priv = pScreenPriv->card->driver;
>   
>   if (!pScreenPriv->enabled)
>-    {
>-      return 0;
>-    }
>-
>+    return 0;
>+  
>   *size = priv->bytes_per_line;
>   return priv->base + row * priv->bytes_per_line + offset;
> }
>@@ -210,8 +209,8 @@ ephyrMapFramebuffer (KdScreenInfo *screen)
>   KdPointerMatrix m;
>   int buffer_height;
>   
>-  EPHYR_DBG(" screen->width: %d, screen->height: %d",
>-	    screen->width, screen->height);
>+  EPHYR_DBG(" screen->width: %d, screen->height: %d index=%d",
>+	    screen->width, screen->height, screen->mynum );
>   
>   KdComputePointerMatrix (&m, scrpriv->randr, screen->width,
>screen->height);
>   KdSetPointerMatrix (&m);
>@@ -227,7 +226,7 @@ ephyrMapFramebuffer (KdScreenInfo *screen)
>   else
>     buffer_height = 3 * screen->height;
>   
>-  priv->base = hostx_screen_init (screen->width, screen->height,
>buffer_height);
>+  priv->base = hostx_screen_init (screen, screen->width,
>screen->height, buffer_height );
> 
>   screen->memory_base  = (CARD8 *) (priv->base);
>   screen->memory_size  = priv->bytes_per_line * buffer_height;
>@@ -304,7 +303,7 @@ ephyrShadowUpdate (ScreenPtr pScreen, shadowBufPtr
>pBuf)
>    * pBuf->pDamage  regions     
>   */
>   shadowUpdateRotatePacked(pScreen, pBuf);
>-  hostx_paint_rect(0,0,0,0, screen->width, screen->height);
>+  hostx_paint_rect(screen, 0,0,0,0, screen->width, screen->height);
> }
> 
> static void
>@@ -324,13 +323,14 @@ ephyrInternalDamageRedisplay (ScreenPtr pScreen)
>     {
>       int           nbox;
>       BoxPtr        pbox;
>-      
>+  
>       nbox = REGION_NUM_RECTS (pRegion);
>       pbox = REGION_RECTS (pRegion);
>       
>       while (nbox--)
> 	{
>-	  hostx_paint_rect(pbox->x1, pbox->y1,
>+	  hostx_paint_rect(screen, 
>+			   pbox->x1, pbox->y1,
> 			   pbox->x1, pbox->y1,
> 			   pbox->x2 - pbox->x1,
> 			   pbox->y2 - pbox->y1);
>@@ -435,7 +435,7 @@ ephyrRandRGetInfo (ScreenPtr pScreen, Rotation
>*rotations)
>   
>   *rotations = RR_Rotate_All|RR_Reflect_All;
>   
>-  if (!hostx_want_preexisting_window()
>+  if (!hostx_want_preexisting_window( screen )
>       && !hostx_want_fullscreen()) /* only if no -parent switch */
>     {
>       while (sizes[n].width != 0 && sizes[n].height != 0)
>@@ -586,9 +586,7 @@ ephyrRandRInit (ScreenPtr pScreen)
>   rrScrPrivPtr    pScrPriv;
>   
>   if (!RRScreenInit (pScreen))
>-    {
>-      return FALSE;
>-    }
>+    return FALSE;
>   
>   pScrPriv = rrGetScrPriv(pScreen);
>   pScrPriv->rrGetInfo = ephyrRandRGetInfo;
>@@ -606,6 +604,11 @@ ephyrCreateColormap (ColormapPtr pmap)
> Bool
> ephyrInitScreen (ScreenPtr pScreen)
> {
>+  KdScreenPriv(pScreen);
>+  KdScreenInfo	*screen    = pScreenPriv->screen;
>+
>+  hostx_set_screen_number( screen, pScreen->myNum );
>+
>   pScreen->CreateColormap = ephyrCreateColormap;
>   return TRUE;
> }
>@@ -634,7 +637,7 @@ ephyrCreateResources (ScreenPtr pScreen)
>   KdScreenInfo	*screen    = pScreenPriv->screen;
>   EphyrScrPriv	*scrpriv   = screen->driver;
> 
>-  EPHYR_DBG("mark");
>+  EPHYR_DBG("mark pScreen=%p mynum=%d shadow=%d", pScreen,
>pScreen->myNum, scrpriv->shadow);
> 
>   if (scrpriv->shadow) 
>     return KdShadowSet (pScreen, 
>@@ -743,6 +746,56 @@ ephyrUpdateModifierState(unsigned int state)
>     }
> }
> 
>+static void
>+ephyrBlockSigio (void)
>+{
>+    sigset_t	set;
>+    
>+    sigemptyset (&set);
>+    sigaddset (&set, SIGIO);
>+    sigprocmask (SIG_BLOCK, &set, 0);
>+}
>+
>+static void
>+ephyrUnblockSigio (void)
>+{
>+    sigset_t	set;
>+    
>+    sigemptyset (&set);
>+    sigaddset (&set, SIGIO);
>+    sigprocmask (SIG_UNBLOCK, &set, 0);
>+}
>+
>+static Bool
>+ephyrCursorOffScreen(ScreenPtr *ppScreen, int *x, int *y)
>+{
>+  return FALSE;
>+}
>+
>+static void
>+ephyrCrossScreen(ScreenPtr pScreen, Bool entering)
>+{
>+}
>+
>+int ephyrCurScreen;	/* current event screen */
>+
>+static void
>+ephyrWarpCursor (ScreenPtr pScreen, int x, int y)
>+{
>+    ephyrBlockSigio ();
>+    ephyrCurScreen = pScreen->myNum;
>+    miPointerWarpCursor (pScreen, x, y);
>+    ephyrUnblockSigio ();
>+}
>+
>+miPointerScreenFuncRec ephyrPointerScreenFuncs = 
>+{
>+  ephyrCursorOffScreen,
>+  ephyrCrossScreen,
>+  ephyrWarpCursor
>+};
>+
>+
> void
> ephyrPoll(void)
> {
>@@ -756,10 +809,17 @@ ephyrPoll(void)
>           if (!ephyrMouse ||
>               !((EphyrPointerPrivate
>*)ephyrMouse->driverPrivate)->enabled)
>               continue;
>-	  KdEnqueuePointerEvent(ephyrMouse, mouseState,  
>-			        ev.data.mouse_motion.x, 
>-			        ev.data.mouse_motion.y,
>-                                0);
>+	  {
>+	    if ( ephyrCurScreen != ev.data.mouse_motion.screen )
>+	      ephyrWarpCursor(
>screenInfo.screens[ev.data.mouse_motion.screen],
>+			       ev.data.mouse_motion.x, 
>+			       ev.data.mouse_motion.y );
>+	    else
>+	      KdEnqueuePointerEvent(ephyrMouse, mouseState,  
>+				    ev.data.mouse_motion.x, 
>+				    ev.data.mouse_motion.y,
>+				    0);
>+	  }
> 	  break;
> 	  
> 	case EPHYR_EV_MOUSE_PRESS:
>diff --git a/hw/kdrive/ephyr/ephyr.h b/hw/kdrive/ephyr/ephyr.h
>index f49d920..1c9b4f8 100644
>--- a/hw/kdrive/ephyr/ephyr.h
>+++ b/hw/kdrive/ephyr/ephyr.h
>@@ -71,6 +71,8 @@ extern KdCardFuncs ephyrFuncs;
> extern KdKeyboardInfo *ephyrKbd;
> extern KdPointerInfo *ephyrMouse;
> 
>+extern miPointerScreenFuncRec ephyrPointerScreenFuncs;
>+
> Bool
> ephyrInitialize (KdCardInfo *card, EphyrPriv *priv);
> 
>diff --git a/hw/kdrive/ephyr/ephyrinit.c b/hw/kdrive/ephyr/ephyrinit.c
>index 45e2d30..1a72871 100644
>--- a/hw/kdrive/ephyr/ephyrinit.c
>+++ b/hw/kdrive/ephyr/ephyrinit.c
>@@ -87,16 +87,52 @@ ddxUseMsg (void)
>   exit(1);
> }
> 
>+static void
>+process_screen_arg( char *screen_size, char *parent_id )
>+{
>+  KdCardInfo   *card;
>+
>+  InitCard (0);  /* Put each screen on a separate card */
>+  card = KdCardInfoLast ();
>+
>+  if (card)
>+    {
>+      KdScreenInfo *screen;
>+      unsigned long p_id = 0;
>+
>+      screen = KdScreenInfoAdd (card);
>+      KdParseScreen (screen, screen_size);
>+
>+      if ( parent_id )
>+	p_id = strtol( parent_id, NULL, 0 );
>+      hostx_add_screen( screen, p_id );
>+    } 
>+  else 
>+    ErrorF("No matching card found!\n");
>+} 
>+      
>+
> int
> ddxProcessArgument (int argc, char **argv, int i)
> {
>-  EPHYR_DBG("mark");
>+  EPHYR_DBG("mark argv[%d]='%s'", i, argv[i] );
> 
>   if (!strcmp (argv[i], "-parent"))
>     {
>       if(i+1 < argc) 
> 	{
>-	  hostx_use_preexisting_window(strtol(argv[i+1], NULL, 0));
>+	  process_screen_arg( "100x100", argv[i+1]);
>+	  return 2;
>+	} 
>+      
>+      UseMsg();
>+      exit(1);
>+    }
>+  else if (!strcmp (argv[i], "-screen"))
>+    {
>+      if ((i+1) < argc) 
>+	{
>+	  process_screen_arg( argv[i+1], NULL );
> 	  return 2;
> 	} 
>       
>@@ -185,8 +221,10 @@ miPointerSpriteFuncRec EphyrPointerSpriteFuncs = {
> Bool
> ephyrCursorInit(ScreenPtr pScreen)
> {
>-  miPointerInitialize(pScreen, &EphyrPointerSpriteFuncs,
>-		      &kdPointerScreenFuncs, FALSE);
>+  miPointerInitialize(pScreen, 
>+		      &EphyrPointerSpriteFuncs,
>+		      &ephyrPointerScreenFuncs, 
>+		      FALSE);
> 
>   return TRUE;
> }
>diff --git a/hw/kdrive/ephyr/hostx.c b/hw/kdrive/ephyr/hostx.c
>index 36d3cbd..ed7d0a3 100644
>--- a/hw/kdrive/ephyr/hostx.c
>+++ b/hw/kdrive/ephyr/hostx.c
>@@ -47,33 +47,44 @@
>  * to get clobbered. 
>  */
> 
>+struct EphyrHostScreenVars
>+{
>+  Window          win;
>+  Window          win_pre_existing; 	/* Set via -parent option like
>xnest */
>+  XImage         *ximg;
>+  int             win_width, win_height;
>+  int             server_depth;
>+  unsigned char  *fb_data;   	/* only used when host bpp != server bpp
>*/
>+  XShmSegmentInfo shminfo;
>+
>+  void           *info;   /* Pointer to the screen this is associated
>with */
>+  int             mynum;  /* Screen number */
>+};
>+
> struct EphyrHostXVars
> {
>   char           *server_dpy_name;
>   Display        *dpy;
>   int             screen;
>   Visual         *visual;
>-  Window          win, winroot;
>-  Window          win_pre_existing; 	/* Set via -parent option like
>xnest */
>+  Window          winroot;
>   GC              gc;
>   int             depth;
>-  int             server_depth;
>-  XImage         *ximg;
>-  int             win_width, win_height;
>   Bool            use_host_cursor;
>   Bool            use_fullscreen;
>   Bool            have_shm;
> 
>+  int             n_screens;
>+  struct EphyrHostScreenVars *screens;
>+
>   long            damage_debug_msec;
> 
>-  unsigned char  *fb_data;   	/* only used when host bpp != server bpp
>*/
>   unsigned long   cmap[256];
>-
>-  XShmSegmentInfo shminfo;
> };
> 
> /* memset ( missing> ) instead of below  */
>-static EphyrHostXVars HostX = { "?",
>0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
>+//static EphyrHostXVars HostX = { "?",
>0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
>+static EphyrHostXVars HostX;
> 
> static int            HostXWantDamageDebug = 0;
> 
>@@ -89,8 +100,19 @@ hostx_set_fullscreen_hint(void);
> static int trapped_error_code = 0;
> static int (*old_error_handler) (Display *d, XErrorEvent *e);
> 
>-#define host_depth_matches_server() (HostX.depth == HostX.server_depth)
>+#define host_depth_matches_server(_vars) (HostX.depth ==
>(_vars)->server_depth)
>+
>+static struct EphyrHostScreenVars *
>+screen_vars_from_screen_info( void *info )
>+{
>+  int i;
>+
>+  for ( i = 0 ; i < HostX.n_screens ; i++ )
>+    if ( HostX.screens[i].info == info )
>+      return &HostX.screens[i];
> 
>+  return NULL;
>+}
> 
> static int
> error_handler(Display     *display,
>@@ -115,13 +137,16 @@ hostx_errors_untrap(void)
> }
> 
> int
>-hostx_want_screen_size(int *width, int *height)
>+hostx_want_screen_size( void *info, int *width, int *height )
> {
>- if (HostX.win_pre_existing != None
>-     || HostX.use_fullscreen == True)
>+  struct EphyrHostScreenVars *vars = screen_vars_from_screen_info( info
>);
>+
>+  if ( vars && 
>+       ( vars->win_pre_existing != None ||
>+	 HostX.use_fullscreen == True ))
>     {
>-      *width  = HostX.win_width;
>-      *height = HostX.win_height;
>+      *width  = vars->win_width;
>+      *height = vars->win_height;
>       return 1;
>     }
> 
>@@ -129,21 +154,51 @@ hostx_want_screen_size(int *width, int *height)
> }
> 
> void
>+hostx_add_screen( void *info, unsigned long win_id )
>+{
>+  int index = HostX.n_screens;
>+  
>+  HostX.n_screens += 1;
>+  HostX.screens = realloc( HostX.screens, 
>+			   HostX.n_screens * sizeof(struct
>EphyrHostScreenVars));
>+  memset( &HostX.screens[index], 0, sizeof(struct
>EphyrHostScreenVars));
>+
>+  HostX.screens[index].info       = info;
>+  HostX.screens[index].win_pre_existing = win_id;
>+}
>+
>+
>+void
> hostx_set_display_name(char *name)
> {
>   HostX.server_dpy_name = strdup(name);
> }
> 
> void
>-hostx_set_win_title(char *extra_text)
>+hostx_set_screen_number(void *info, int number)
>+{
>+  struct EphyrHostScreenVars *vars = screen_vars_from_screen_info( info
>);
>+  if ( vars ) {
>+    vars->mynum = number;
>+    hostx_set_win_title( vars->info, "" );
>+  }
>+}
>+
>+void
>+hostx_set_win_title( void *info, char *extra_text )
> {
>+  struct EphyrHostScreenVars *vars = screen_vars_from_screen_info( info
>);
>   char buf[256];
> 
>-  snprintf(buf, 256, "Xephyr on %s %s", 
>-	   HostX.server_dpy_name,
>+  if ( !vars )
>+    return;
>+
>+  snprintf(buf, 256, "Xephyr on %s.%d %s", 
>+	   HostX.server_dpy_name, 
>+	   vars->mynum,
> 	   (extra_text != NULL) ? extra_text : "");
> 
>-  XStoreName(HostX.dpy, HostX.win, buf);
>+  XStoreName(HostX.dpy, vars->win, buf);
> }
> 
> int
>@@ -159,9 +214,11 @@ hostx_use_host_cursor(void)
> }
> 
> int
>-hostx_want_preexisting_window(void)
>+hostx_want_preexisting_window( void *info )
> {
>-  if (HostX.win_pre_existing) 
>+  struct EphyrHostScreenVars *vars = screen_vars_from_screen_info( info
>);
>+
>+  if (vars && vars->win_pre_existing) 
>     return 1;
>   else
>     return 0;
>@@ -183,23 +240,20 @@ static void
> hostx_set_fullscreen_hint(void)
> {
>   Atom atom_WINDOW_STATE, atom_WINDOW_STATE_FULLSCREEN;
>+  int index;
> 
>   atom_WINDOW_STATE 
>     = XInternAtom(HostX.dpy, "_NET_WM_STATE", False);
>   atom_WINDOW_STATE_FULLSCREEN 
>     = XInternAtom(HostX.dpy, "_NET_WM_STATE_FULLSCREEN",False);
> 
>-  XChangeProperty(HostX.dpy, HostX.win,
>-		  atom_WINDOW_STATE, XA_ATOM, 32,
>-		  PropModeReplace,
>-		  (unsigned char *)&atom_WINDOW_STATE_FULLSCREEN, 1);
>+  for ( index = 0 ; index < HostX.n_screens ; index++ ) 
>+    XChangeProperty(HostX.dpy, HostX.screens[index].win,
>+		    atom_WINDOW_STATE, XA_ATOM, 32,
>+		    PropModeReplace,
>+		    (unsigned char *)&atom_WINDOW_STATE_FULLSCREEN, 1);
> }
> 
>-void
>-hostx_use_preexisting_window(unsigned long win_id)
>-{
>-  HostX.win_pre_existing = win_id;
>-}
> 
> static void
> hostx_toggle_damage_debug(void)
>@@ -221,6 +275,7 @@ hostx_init(void)
>   Cursor                empty_cursor;
>   Pixmap                cursor_pxm;
>   XColor                col;
>+  int                   index;
> 
>   attr.event_mask = 
>     ButtonPressMask
>@@ -244,63 +299,66 @@ hostx_init(void)
>   HostX.depth   = DefaultDepth(HostX.dpy, HostX.screen);
>   HostX.visual  = DefaultVisual(HostX.dpy, HostX.screen); 
> 
>-  HostX.server_depth = HostX.depth;
>- 
>-  if (HostX.win_pre_existing != None)
>-    {
>-      Status            result;
>-      XWindowAttributes prewin_attr;
>+  for ( index = 0 ; index < HostX.n_screens ; index++ ) {
>+    struct EphyrHostScreenVars *vars = &HostX.screens[index];
> 
>-      /* Get screen size from existing window */
>+    vars->server_depth = HostX.depth;
>+    if (vars->win_pre_existing != None)
>+      {
>+	Status            result;
>+	XWindowAttributes prewin_attr;
> 
>-      hostx_errors_trap();
>+	/* Get screen size from existing window */
> 
>-      result = XGetWindowAttributes(HostX.dpy, 
>-				    HostX.win_pre_existing, 
>-				    &prewin_attr);
>+	hostx_errors_trap();
> 
>+	result = XGetWindowAttributes(HostX.dpy, 
>+				      vars->win_pre_existing, 
>+				      &prewin_attr);
> 
>-      if (hostx_errors_untrap() || !result)
>-	{
>-	  fprintf(stderr, "\nXephyr -parent window' does not exist!\n");
>-	  exit(1);
>-	}
> 
>-      HostX.win_width  = prewin_attr.width;
>-      HostX.win_height = prewin_attr.height;
>-
>-      HostX.win = XCreateWindow(HostX.dpy,
>-				HostX.win_pre_existing,
>-				0,0,HostX.win_width,HostX.win_height,
>-				0,
>-				CopyFromParent,
>-				CopyFromParent,
>-				CopyFromParent,
>-				CWEventMask,
>-				&attr);
>-    }
>-  else
>-    {
>-      HostX.win = XCreateWindow(HostX.dpy,
>-				HostX.winroot,
>-				0,0,100,100, /* will resize  */
>-				0,
>-			        CopyFromParent,
>-				CopyFromParent,
>-				CopyFromParent,
>-				CWEventMask,
>-				&attr);
>-
>-      hostx_set_win_title("( ctrl+shift grabs mouse and keyboard )");
>-
>-      if (HostX.use_fullscreen)
>-	{
>-	  HostX.win_width  = DisplayWidth(HostX.dpy, HostX.screen); 
>-	  HostX.win_height = DisplayHeight(HostX.dpy, HostX.screen); 
>+	if (hostx_errors_untrap() || !result)
>+	  {
>+	    fprintf(stderr, "\nXephyr -parent window' does not
>exist!\n");
>+	    exit(1);
>+	  }
> 
>-	  hostx_set_fullscreen_hint();
>-	}
>-    }
>+	vars->win_width  = prewin_attr.width;
>+	vars->win_height = prewin_attr.height;
>+
>+	vars->win = XCreateWindow(HostX.dpy,
>+					     vars->win_pre_existing,
>+
>0,0,vars->win_width,vars->win_height,
>+					     0,
>+					     CopyFromParent,
>+					     CopyFromParent,
>+					     CopyFromParent,
>+					     CWEventMask,
>+					     &attr);
>+      }
>+    else
>+      {
>+	vars->win = XCreateWindow(HostX.dpy,
>+					     HostX.winroot,
>+					     0,0,100,100, /* will resize
>*/
>+					     0,
>+					     CopyFromParent,
>+					     CopyFromParent,
>+					     CopyFromParent,
>+					     CWEventMask,
>+					     &attr);
>+
>+	hostx_set_win_title( vars->info, "( ctrl+shift grabs mouse and
>keyboard )");
>+
>+	if (HostX.use_fullscreen)
>+	  {
>+	    vars->win_width  = DisplayWidth(HostX.dpy, HostX.screen); 
>+	    vars->win_height = DisplayHeight(HostX.dpy, HostX.screen); 
>+
>+	    hostx_set_fullscreen_hint();
>+	  }
>+      }
>+  }
> 
> 
>   XParseColor(HostX.dpy, DefaultColormap(HostX.dpy,HostX.screen),
>"red", &col);
>@@ -315,12 +373,14 @@ hostx_init(void)
>       empty_cursor = XCreatePixmapCursor (HostX.dpy, 
> 					  cursor_pxm, cursor_pxm, 
> 					  &col, &col, 1, 1);
>-      XDefineCursor (HostX.dpy, HostX.win, empty_cursor);
>+      for ( index = 0 ; index < HostX.n_screens ; index++ ) 
>+	XDefineCursor (HostX.dpy, HostX.screens[index].win,
>empty_cursor);
>       XFreePixmap (HostX.dpy, cursor_pxm);
>     }
> 
>-  HostX.ximg   = NULL;
>-
>+  for ( index = 0 ; index < HostX.n_screens ; index++ ) {
>+    HostX.screens[index].ximg   = NULL;
>+  }
>   /* Try to get share memory ximages for a little bit more speed */
> 
>   if (!XShmQueryExtension(HostX.dpy) || getenv("XEPHYR_NO_SHM")) 
>@@ -332,26 +392,26 @@ hostx_init(void)
>     {	
>       /* Really really check we have shm - better way ?*/
>       XShmSegmentInfo shminfo; 
>-
>-      HostX.have_shm = True;
>-
>-      shminfo.shmid=shmget(IPC_PRIVATE, 1, IPC_CREAT|0777);
>-      shminfo.shmaddr=shmat(shminfo.shmid,0,0);
>-      shminfo.readOnly=True;
>-
>-      hostx_errors_trap();
>       
>-      XShmAttach(HostX.dpy, &shminfo);
>-      XSync(HostX.dpy, False);
>-
>-      if (hostx_errors_untrap())
>-	{
>-	  fprintf(stderr, "\nXephyr unable to use SHM XImages\n");
>-	  HostX.have_shm = False;
>-	}
>-
>-      shmdt(shminfo.shmaddr);
>-      shmctl(shminfo.shmid, IPC_RMID, 0);
>+	HostX.have_shm = True;
>+	
>+	shminfo.shmid=shmget(IPC_PRIVATE, 1, IPC_CREAT|0777);
>+	shminfo.shmaddr=shmat(shminfo.shmid,0,0);
>+	shminfo.readOnly=True;
>+	
>+	hostx_errors_trap();
>+	
>+	XShmAttach(HostX.dpy, &shminfo);
>+	XSync(HostX.dpy, False);
>+	
>+	if (hostx_errors_untrap())
>+	  {
>+	    fprintf(stderr, "\nXephyr unable to use SHM XImages\n");
>+	    HostX.have_shm = False;
>+	  }
>+	
>+	shmdt(shminfo.shmaddr);
>+	shmctl(shminfo.shmid, IPC_RMID, 0);
>     }
> 
>   XFlush(HostX.dpy);
>@@ -376,38 +436,54 @@ hostx_get_depth (void)
> }
> 
> int
>-hostx_get_server_depth (void)
>+hostx_get_server_depth (void *info)
> {
>-  return HostX.server_depth;
>+  struct EphyrHostScreenVars *vars = screen_vars_from_screen_info( info
>);
>+
>+  return ( vars ? vars->server_depth : 0 );
> }
> 
> void
>-hostx_set_server_depth(int depth)
>+hostx_set_server_depth (void *info, int depth)
> {
>-  HostX.server_depth = depth;
>+  struct EphyrHostScreenVars *vars = screen_vars_from_screen_info( info
>);
>+
>+  if ( vars )
>+    vars->server_depth = depth;
> }
> 
> int
>-hostx_get_bpp(void)
>+hostx_get_bpp(void *info)
> {
>-  if (host_depth_matches_server())
>-    return  HostX.visual->bits_per_rgb;
>+  struct EphyrHostScreenVars *vars = screen_vars_from_screen_info( info
>);
>+
>+  if ( !vars )
>+    return 0;
>+
>+  if (host_depth_matches_server(vars))
>+    return HostX.visual->bits_per_rgb;
>   else
>-    return HostX.server_depth; 	/* XXX correct ? */
>+    return vars->server_depth; 	/* XXX correct ? */
> }
> 
> void
>-hostx_get_visual_masks (CARD32 *rmsk, 
>+hostx_get_visual_masks (void   *info,
>+			CARD32 *rmsk, 
> 			CARD32 *gmsk, 
> 			CARD32 *bmsk)
> {
>-  if (host_depth_matches_server())
>+  struct EphyrHostScreenVars *vars = screen_vars_from_screen_info( info
>);
>+
>+  if ( !vars )
>+    return;
>+
>+  if (host_depth_matches_server(vars))
>     {
>       *rmsk = HostX.visual->red_mask;
>       *gmsk = HostX.visual->green_mask;
>       *bmsk = HostX.visual->blue_mask;
>     }
>-  else if (HostX.server_depth == 16)
>+  else if (vars->server_depth == 16)
>     {
>       /* Assume 16bpp 565 */
>       *rmsk = 0xf800;
>@@ -445,15 +521,21 @@ hostx_set_cmap_entry(unsigned char idx,
>  * by fakexa for storing offscreen pixmap data.
>  */
> void*
>-hostx_screen_init (int width, int height, int buffer_height)
>+hostx_screen_init (void *info, int width, int height, int
>buffer_height)
> {
>   int         bitmap_pad;
>   Bool        shm_success = False;
>   XSizeHints *size_hints;
> 
>-  EPHYR_DBG("mark");
>+  struct EphyrHostScreenVars *vars = screen_vars_from_screen_info( info
>);
>+  if ( !vars ) {
>+    fprintf(stderr, "%s: Error in accessing hostx data\n", __func__ );
>+    exit(1);
>+  }
>+
>+  EPHYR_DBG("vars=%p wxh=%dx%d, buffer_height=%d", vars, width, height,
>buffer_height);
> 
>-  if (HostX.ximg != NULL)
>+  if (vars->ximg != NULL)
>     {
>       /* Free up the image data if previously used
>        * i.ie called by server reset
>@@ -461,47 +543,47 @@ hostx_screen_init (int width, int height, int
>buffer_height)
> 
>       if (HostX.have_shm)
> 	{
>-	  XShmDetach(HostX.dpy, &HostX.shminfo);
>-	  XDestroyImage (HostX.ximg);
>-	  shmdt(HostX.shminfo.shmaddr);
>-	  shmctl(HostX.shminfo.shmid, IPC_RMID, 0);
>+	  XShmDetach(HostX.dpy, &vars->shminfo);
>+	  XDestroyImage (vars->ximg);
>+	  shmdt(vars->shminfo.shmaddr);
>+	  shmctl(vars->shminfo.shmid, IPC_RMID, 0);
> 	}
>       else
> 	{
>-	  if (HostX.ximg->data) 
>+	  if (vars->ximg->data) 
> 	    {
>-	      free(HostX.ximg->data);
>-	      HostX.ximg->data = NULL;
>+	      free(vars->ximg->data);
>+	      vars->ximg->data = NULL;
> 	    } 
> 
>-	  XDestroyImage(HostX.ximg);
>+	  XDestroyImage(vars->ximg);
> 	}
>     }
> 
>   if (HostX.have_shm)
>     {
>-      HostX.ximg = XShmCreateImage(HostX.dpy, HostX.visual,
>HostX.depth, 
>-				   ZPixmap, NULL, &HostX.shminfo,
>+      vars->ximg = XShmCreateImage(HostX.dpy, HostX.visual,
>HostX.depth, 
>+				   ZPixmap, NULL, &vars->shminfo,
> 				   width, buffer_height );
> 	  
>-      HostX.shminfo.shmid = shmget(IPC_PRIVATE,
>-				   HostX.ximg->bytes_per_line *
>buffer_height,
>+      vars->shminfo.shmid = shmget(IPC_PRIVATE,
>+				   vars->ximg->bytes_per_line *
>buffer_height,
> 				   IPC_CREAT|0777);
>-      HostX.shminfo.shmaddr = HostX.ximg->data =
>shmat(HostX.shminfo.shmid,
>-						       0, 0);
>+      vars->ximg->data = shmat(vars->shminfo.shmid, 0, 0);
>+      vars->shminfo.shmaddr = vars->ximg->data;
> 
>-      if (HostX.ximg->data == (char *)-1)
>+      if (vars->ximg->data == (char *)-1)
> 	{
> 	  EPHYR_DBG("Can't attach SHM Segment, falling back to plain
>XImages");
> 	  HostX.have_shm = False;
>-	  XDestroyImage(HostX.ximg);
>-	  shmctl(HostX.shminfo.shmid, IPC_RMID, 0);
>+	  XDestroyImage(vars->ximg);
>+	  shmctl(vars->shminfo.shmid, IPC_RMID, 0);
> 	}
>       else
> 	{
>-	  EPHYR_DBG("SHM segment attached");
>-	  HostX.shminfo.readOnly = False;
>-	  XShmAttach(HostX.dpy, &HostX.shminfo);
>+	  EPHYR_DBG("SHM segment attached %p", vars->shminfo.shmaddr);
>+	  vars->shminfo.readOnly = False;
>+	  XShmAttach(HostX.dpy, &vars->shminfo);
> 	  shm_success = True;
> 	}
>     }
>@@ -509,55 +591,65 @@ hostx_screen_init (int width, int height, int
>buffer_height)
>   if (!shm_success)
>     {
>       bitmap_pad = ( HostX.depth > 16 )? 32 : (( HostX.depth > 8 )? 16
>: 8 );
>-	  
>-      HostX.ximg = XCreateImage( HostX.dpy, 
>-				 HostX.visual, 
>-				 HostX.depth, 
>-				 ZPixmap, 0, 0,
>-				 width, 
>-				 buffer_height, 
>-				 bitmap_pad, 
>-				 0);
>-
>-      HostX.ximg->data = malloc( HostX.ximg->bytes_per_line *
>buffer_height );
>-    }
> 
>+      EPHYR_DBG("Creating image %dx%d for screen vars=%p\n", width,
>buffer_height, vars );
>+      vars->ximg = XCreateImage( HostX.dpy, 
>+						HostX.visual, 
>+						HostX.depth, 
>+						ZPixmap, 0, 0,
>+						width, 
>+						buffer_height, 
>+						bitmap_pad, 
>+						0);
>+
>+      vars->ximg->data = malloc( vars->ximg->bytes_per_line *
>buffer_height );
>+    }
> 
>-  XResizeWindow(HostX.dpy, HostX.win, width, height);
>+  XResizeWindow(HostX.dpy, vars->win, width, height);
> 
>   /* Ask the WM to keep our size static */
>   size_hints = XAllocSizeHints();
>   size_hints->max_width = size_hints->min_width = width;
>   size_hints->max_height = size_hints->min_height = height;
>   size_hints->flags = PMinSize|PMaxSize;
>-  XSetWMNormalHints(HostX.dpy, HostX.win, size_hints);
>+  XSetWMNormalHints(HostX.dpy, vars->win, size_hints);
>   XFree(size_hints);
> 
>-  XMapWindow(HostX.dpy, HostX.win);
>+  XMapWindow(HostX.dpy, vars->win);
> 
>   XSync(HostX.dpy, False);
> 
>-  HostX.win_width  = width;
>-  HostX.win_height = height;
>+  vars->win_width  = width;
>+  vars->win_height = height;
> 
>-  if (host_depth_matches_server())
>+  if (host_depth_matches_server(vars))
>     {
>       EPHYR_DBG("Host matches server");
>-      return HostX.ximg->data;
>+      return vars->ximg->data;
>     }
>   else
>     {
>-      EPHYR_DBG("server bpp %i", HostX.server_depth>>3);
>-      HostX.fb_data =
>malloc(width*buffer_height*(HostX.server_depth>>3));
>-      return HostX.fb_data;
>+      EPHYR_DBG("server bpp %i", vars->server_depth>>3);
>+      vars->fb_data =
>malloc(width*buffer_height*(vars->server_depth>>3));
>+      return vars->fb_data;
>     }
> }
> 
>+static void hostx_paint_debug_rect(struct EphyrHostScreenVars *vars,
>+				   int x,     int y, 
>+				   int width, int height);
>+
> void
>-hostx_paint_rect(int sx,    int sy,
>+hostx_paint_rect(void *info,
>+		 int sx,    int sy,
> 		 int dx,    int dy, 
> 		 int width, int height)
> {
>+  struct EphyrHostScreenVars *vars = screen_vars_from_screen_info( info
>);
>+
>+  //  EPHYR_DBG(" screen=%p s=%d,%d d=%d,%d size=%dx%d",
>+  //	    vars, sx, sy, dx, dy, width, height );
>+  
>   /* 
>    *  Copy the image data updated by the shadow layer
>    *  on to the window
>@@ -565,7 +657,7 @@ hostx_paint_rect(int sx,    int sy,
> 
>   if (HostXWantDamageDebug)
>     {
>-      hostx_paint_debug_rect(dx, dy, width, height);
>+      hostx_paint_debug_rect(vars, dx, dy, width, height);
>     }
> 
>   /* 
>@@ -580,22 +672,23 @@ hostx_paint_rect(int sx,    int sy,
>    *       ... and it will be slower than the matching depth case.
>    */
> 
>-  if (!host_depth_matches_server())
>+  if (!host_depth_matches_server(vars))
>     {
>-      int            x,y,idx, bytes_per_pixel =
>(HostX.server_depth>>3);
>+      int            x,y,idx, bytes_per_pixel =
>(vars->server_depth>>3);
>       unsigned char  r,g,b;
>       unsigned long  host_pixel;
> 
>+      EPHYR_DBG("Unmatched host depth vars=%p\n", vars);
>       for (y=sy; y<sy+height; y++)
> 	for (x=sx; x<sx+width; x++)
> 	  {
>-	    idx =
>(HostX.win_width*y*bytes_per_pixel)+(x*bytes_per_pixel);
>+	    idx =
>(vars->win_width*y*bytes_per_pixel)+(x*bytes_per_pixel);
> 	    
>-	    switch (HostX.server_depth)
>+	    switch (vars->server_depth)
> 	      {
> 	      case 16:
> 		{
>-		  unsigned short pixel = *(unsigned
>short*)(HostX.fb_data+idx);
>+		  unsigned short pixel = *(unsigned
>short*)(vars->fb_data+idx);
> 
> 		  r = ((pixel & 0xf800) >> 8);
> 		  g = ((pixel & 0x07e0) >> 3);
>@@ -603,13 +696,13 @@ hostx_paint_rect(int sx,    int sy,
> 
> 		  host_pixel = (r << 16) | (g << 8) | (b);
> 		  
>-		  XPutPixel(HostX.ximg, x, y, host_pixel);
>+		  XPutPixel(vars->ximg, x, y, host_pixel);
> 		  break;
> 		}
> 	      case 8:
> 		{
>-		  unsigned char pixel = *(unsigned
>char*)(HostX.fb_data+idx);
>-		  XPutPixel(HostX.ximg, x, y, HostX.cmap[pixel]);
>+		  unsigned char pixel = *(unsigned
>char*)(vars->fb_data+idx);
>+		  XPutPixel(vars->ximg, x, y, HostX.cmap[pixel]);
> 		  break;
> 		}
> 	      default:
>@@ -620,20 +713,21 @@ hostx_paint_rect(int sx,    int sy,
> 
>   if (HostX.have_shm)
>     {
>-      XShmPutImage(HostX.dpy, HostX.win, HostX.gc, HostX.ximg, 
>+      XShmPutImage(HostX.dpy, vars->win, HostX.gc, vars->ximg, 
> 		       sx, sy, dx, dy, width, height, False);
>     }
>   else
>     {
>-      XPutImage(HostX.dpy, HostX.win, HostX.gc, HostX.ximg, 
>+      XPutImage(HostX.dpy, vars->win, HostX.gc, vars->ximg, 
> 		sx, sy, dx, dy, width, height);
>     }
> 
>   XSync(HostX.dpy, False);
> }
> 
>-void
>-hostx_paint_debug_rect(int x,     int y, 
>+static void
>+hostx_paint_debug_rect(struct EphyrHostScreenVars *vars,
>+		       int x,     int y, 
> 		       int width, int height)
> {
>   struct timespec tspec;
>@@ -646,7 +740,7 @@ hostx_paint_debug_rect(int x,     int y,
> 
>   /* fprintf(stderr, "Xephyr updating: %i+%i %ix%i\n", x, y, width,
>height); */
> 
>-  XFillRectangle(HostX.dpy, HostX.win, HostX.gc, x, y, width,height); 
>+  XFillRectangle(HostX.dpy, vars->win, HostX.gc, x, y, width,height); 
>   XSync(HostX.dpy, False);
> 
>   /* nanosleep seems to work better than usleep for me... */
>@@ -696,11 +790,23 @@ hostx_load_keymap(void)
>   XFree(keymap);
> }
> 
>+static struct EphyrHostScreenVars *
>+vars_from_window( Window w )
>+{
>+  int index;
>+
>+  for ( index = 0 ; index < HostX.n_screens ; index++ )
>+    if ( HostX.screens[index].win == w )
>+      return &HostX.screens[index];
>+ 
>+  return NULL;
>+}
>+
> int
> hostx_get_event(EphyrHostXEvent *ev)
> {
>   XEvent      xev;
>-  static Bool grabbed;
>+  static int  grabbed_screen = -1;
> 
>   if (XPending(HostX.dpy))
>     {
>@@ -712,13 +818,21 @@ hostx_get_event(EphyrHostXEvent *ev)
> 	  /* Not so great event compression, but works ok */
> 	  while (XCheckTypedWindowEvent(HostX.dpy, xev.xexpose.window, 
> 					Expose, &xev));
>-	  hostx_paint_rect(0, 0, 0, 0, HostX.win_width,
>HostX.win_height);
>+	  {
>+	    struct EphyrHostScreenVars *vars = vars_from_window(
>xev.xexpose.window );
>+	    hostx_paint_rect(vars->info, 0, 0, 0, 0, vars->win_width,
>vars->win_height);
>+	  }
> 	  return 0;
> 
> 	case MotionNotify:
>-	  ev->type = EPHYR_EV_MOUSE_MOTION;
>-	  ev->data.mouse_motion.x = xev.xmotion.x; 
>-	  ev->data.mouse_motion.y = xev.xmotion.y;
>+	  {
>+	    struct EphyrHostScreenVars *vars = vars_from_window(
>xev.xmotion.window );
>+	    
>+	    ev->type = EPHYR_EV_MOUSE_MOTION;
>+	    ev->data.mouse_motion.x = xev.xmotion.x; 
>+	    ev->data.mouse_motion.y = xev.xmotion.y;
>+	    ev->data.mouse_motion.screen = ( vars ? vars->mynum : -1 );
>+	  }
> 	  return 1;
> 
> 	case ButtonPress:
>@@ -750,29 +864,31 @@ hostx_get_event(EphyrHostXEvent *ev)
> 	       || XKeycodeToKeysym(HostX.dpy,xev.xkey.keycode,0) ==
>XK_Shift_R)
> 	      && (xev.xkey.state & ControlMask))
> 	    {
>-	      if (grabbed) 
>+	      struct EphyrHostScreenVars *vars = vars_from_window(
>xev.xexpose.window );
>+
>+	      if (grabbed_screen != -1)
> 		{
> 		  XUngrabKeyboard (HostX.dpy, CurrentTime);
> 		  XUngrabPointer (HostX.dpy, CurrentTime);
>-		  grabbed = False;
>-		  hostx_set_win_title("( ctrl+shift grabs mouse and
>keyboard )");
>+		  grabbed_screen = -1;
>+		  hostx_set_win_title(vars->info, "( ctrl+shift grabs
>mouse and keyboard )");
> 		} 
> 	      else 
> 		{
> 		  /* Attempt grab */
>-		  if (XGrabKeyboard (HostX.dpy, HostX.win, True, 
>+		  if (XGrabKeyboard (HostX.dpy, vars->win, True, 
> 				     GrabModeAsync, 
> 				     GrabModeAsync, 
> 				     CurrentTime) == 0)
> 		    {
>-		      if (XGrabPointer (HostX.dpy, HostX.win, True, 
>+		      if (XGrabPointer (HostX.dpy, vars->win, True, 
> 					NoEventMask, 
> 					GrabModeAsync, 
> 					GrabModeAsync, 
>-					HostX.win, None, CurrentTime) ==
>0)
>+					vars->win, None, CurrentTime) ==
>0)
> 			{
>-			  grabbed = True;
>-			  hostx_set_win_title("( ctrl+shift releases
>mouse and keyboard )");
>+			  grabbed_screen = vars->mynum;
>+			  hostx_set_win_title(vars->info, "( ctrl+shift
>releases mouse and keyboard )");
> 			}
> 		      else 	/* Failed pointer grabm  ungrab keyboard
>*/
> 			XUngrabKeyboard (HostX.dpy, CurrentTime);
>diff --git a/hw/kdrive/ephyr/hostx.h b/hw/kdrive/ephyr/hostx.h
>index 4d5f37f..5115818 100644
>--- a/hw/kdrive/ephyr/hostx.h
>+++ b/hw/kdrive/ephyr/hostx.h
>@@ -68,6 +68,7 @@ struct EphyrHostXEvent
>     struct mouse_motion { 	
>       int x;
>       int y;
>+      int screen;
>     } mouse_motion;
> 
>     struct mouse_down { 	
>@@ -92,7 +93,7 @@ struct EphyrHostXEvent
> };
> 
> int
>-hostx_want_screen_size(int *width, int *height);
>+hostx_want_screen_size(void *info, int *width, int *height);
> 
> int
> hostx_want_host_cursor(void);
>@@ -107,7 +108,7 @@ int
> hostx_want_fullscreen(void);
> 
> int
>-hostx_want_preexisting_window(void);
>+hostx_want_preexisting_window(void *info);
> 
> void
> hostx_use_preexisting_window(unsigned long win_id);
>@@ -119,25 +120,32 @@ int
> hostx_init(void);
> 
> void
>+hostx_add_screen(void *info, unsigned long win_id);
>+
>+void
> hostx_set_display_name(char *name);
> 
> void
>-hostx_set_win_title(char *extra_text);
>+hostx_set_screen_number(void *info, int number);
>+
>+void
>+hostx_set_win_title(void *info, char *extra_text);
> 
> int
> hostx_get_depth (void);
> 
> int
>-hostx_get_server_depth (void);
>+hostx_get_server_depth (void *info);
> 
> void
>-hostx_set_server_depth(int depth);
>+hostx_set_server_depth(void *info, int depth);
> 
> int
>-hostx_get_bpp(void);
>+hostx_get_bpp(void *info);
> 
> void
>-hostx_get_visual_masks (CARD32 *rmsk, 
>+hostx_get_visual_masks (void   *info,
>+			CARD32 *rmsk, 
> 			CARD32 *gmsk, 
> 			CARD32 *bmsk);
> void
>@@ -147,15 +155,14 @@ hostx_set_cmap_entry(unsigned char idx,
> 		     unsigned char b);
> 
> void*
>-hostx_screen_init (int width, int height, int buffer_height);
>+hostx_screen_init (void *info, int width, int height, int
>buffer_height);
> 
> void
>-hostx_paint_rect(int sx,    int sy,
>+hostx_paint_rect(void *info,
>+		 int sx,    int sy,
> 		 int dx,    int dy, 
> 		 int width, int height);
>-void
>-hostx_paint_debug_rect(int x,     int y, 
>-		       int width, int height);
>+
> 
> void
> hostx_load_keymap(void);
>-- 
>1.4.4.2
>_______________________________________________
>xorg mailing list
>xorg@lists.freedesktop.org
>http://lists.freedesktop.org/mailman/listinfo/xorg

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