mesa xserver git update 10 aug 2011

1 files changed, 1417 insertions, 1413 deletions

diff --git a/xorg-server/hw/kdrive/ephyr/ephyrdriext.c b/xorg-server/hw/kdrive/ephyr/ephyrdriext.c
index 6db06fca7..0bd51b2c7 100644
--- a/xorg-server/hw/kdrive/ephyr/ephyrdriext.c
+++ b/xorg-server/hw/kdrive/ephyr/ephyrdriext.c
@@ -1,1413 +1,1417 @@
-/*

- * Xephyr - A kdrive X server thats runs in a host X window.

- *          Authored by Matthew Allum <mallum@openedhand.com>

- * 

- * Copyright © 2007 OpenedHand Ltd 

- *

- * Permission to use, copy, modify, distribute, and sell this software and its

- * documentation for any purpose is hereby granted without fee, provided that

- * the above copyright notice appear in all copies and that both that

- * copyright notice and this permission notice appear in supporting

- * documentation, and that the name of OpenedHand Ltd not be used in

- * advertising or publicity pertaining to distribution of the software without

- * specific, written prior permission. OpenedHand Ltd makes no

- * representations about the suitability of this software for any purpose.  It

- * is provided "as is" without express or implied warranty.

- *

- * OpenedHand Ltd DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

- * EVENT SHALL OpenedHand Ltd BE LIABLE FOR ANY SPECIAL, INDIRECT OR

- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

- * PERFORMANCE OF THIS SOFTWARE.

- *

- * This file is heavily copied from hw/xfree86/dri/xf86dri.c

- *

- * Authors:

- *    Dodji Seketeli <dodji@openedhand.com>

- */

-

-#ifdef HAVE_CONFIG_H

-#include <kdrive-config.h>

-#endif

-

-#include <string.h>

-

-#include <X11/X.h>

-#include <X11/Xproto.h>

-#define _XF86DRI_SERVER_

-#include <X11/dri/xf86dri.h>

-#include <X11/dri/xf86driproto.h>

-#include "misc.h"

-#include "privates.h"

-#include "dixstruct.h"

-#include "extnsionst.h"

-#include "colormapst.h"

-#include "cursorstr.h"

-#include "scrnintstr.h"

-#include "windowstr.h"

-#include "servermd.h"

-#include "swaprep.h"

-#include "ephyrdri.h"

-#include "ephyrdriext.h"

-#include "hostx.h"

-#define _HAVE_XALLOC_DECLS

-#include "ephyrlog.h"

-#include "protocol-versions.h"

-

-typedef struct {

-    int foo;

-} EphyrDRIWindowPrivRec;

-typedef EphyrDRIWindowPrivRec* EphyrDRIWindowPrivPtr;

-

-typedef struct {

-    CreateWindowProcPtr CreateWindow ;

-    DestroyWindowProcPtr DestroyWindow ;

-    MoveWindowProcPtr MoveWindow ;

-    PositionWindowProcPtr PositionWindow ;

-    ClipNotifyProcPtr ClipNotify ;

-} EphyrDRIScreenPrivRec;

-typedef EphyrDRIScreenPrivRec* EphyrDRIScreenPrivPtr;

-

-static int DRIErrorBase;

-

-

-

-static Bool ephyrDRIScreenInit (ScreenPtr a_screen) ;

-static Bool ephyrDRICreateWindow (WindowPtr a_win) ;

-static Bool ephyrDRIDestroyWindow (WindowPtr a_win) ;

-static void ephyrDRIMoveWindow (WindowPtr a_win,

-                                int a_x, int a_y,

-                                WindowPtr a_siblings,

-                                VTKind a_kind);

-static Bool ephyrDRIPositionWindow (WindowPtr a_win,

-                                    int x, int y) ;

-static void ephyrDRIClipNotify (WindowPtr a_win,

-                                int a_x, int a_y) ;

-

-static Bool EphyrMirrorHostVisuals (ScreenPtr a_screen) ;

-static Bool destroyHostPeerWindow (const WindowPtr a_win) ;

-static Bool findWindowPairFromLocal (WindowPtr a_local,

-                                     EphyrWindowPair **a_pair);

-

-static unsigned char DRIReqCode = 0;

-

-static DevPrivateKeyRec ephyrDRIWindowKeyRec;

-#define ephyrDRIWindowKey (&ephyrDRIWindowKeyRec)

-static DevPrivateKeyRec ephyrDRIScreenKeyRec;

-#define ephyrDRIScreenKey (&ephyrDRIScreenKeyRec)

-

-#define GET_EPHYR_DRI_WINDOW_PRIV(win) ((EphyrDRIWindowPrivPtr) \

-    dixLookupPrivate(&(win)->devPrivates, ephyrDRIWindowKey))

-#define GET_EPHYR_DRI_SCREEN_PRIV(screen) ((EphyrDRIScreenPrivPtr) \

-    dixLookupPrivate(&(screen)->devPrivates, ephyrDRIScreenKey))

-

-static Bool

-ephyrDRIScreenInit (ScreenPtr a_screen)

-{

-    Bool is_ok=FALSE ;

-    EphyrDRIScreenPrivPtr screen_priv=NULL ;

-

-    EPHYR_RETURN_VAL_IF_FAIL (a_screen, FALSE) ;

-

-    screen_priv=GET_EPHYR_DRI_SCREEN_PRIV (a_screen) ;

-    EPHYR_RETURN_VAL_IF_FAIL (screen_priv, FALSE) ;

-

-    screen_priv->CreateWindow = a_screen->CreateWindow ;

-    screen_priv->DestroyWindow = a_screen->DestroyWindow ;

-    screen_priv->MoveWindow = a_screen->MoveWindow ;

-    screen_priv->PositionWindow = a_screen->PositionWindow ;

-    screen_priv->ClipNotify = a_screen->ClipNotify ;

-

-    a_screen->CreateWindow = ephyrDRICreateWindow ;

-    a_screen->DestroyWindow = ephyrDRIDestroyWindow ;

-    a_screen->MoveWindow = ephyrDRIMoveWindow ;

-    a_screen->PositionWindow = ephyrDRIPositionWindow ;

-    a_screen->ClipNotify = ephyrDRIClipNotify ;

-

-    is_ok = TRUE ;

-

-    return is_ok ;

-}

-

-static Bool

-ephyrDRICreateWindow (WindowPtr a_win)

-{

-    Bool is_ok=FALSE ;

-    ScreenPtr screen=NULL ;

-    EphyrDRIScreenPrivPtr screen_priv =NULL;

-

-    EPHYR_RETURN_VAL_IF_FAIL (a_win, FALSE) ;

-    screen = a_win->drawable.pScreen ;

-    EPHYR_RETURN_VAL_IF_FAIL (screen, FALSE) ;

-    screen_priv = GET_EPHYR_DRI_SCREEN_PRIV (screen) ;

-    EPHYR_RETURN_VAL_IF_FAIL (screen_priv

-                              && screen_priv->CreateWindow,

-                              FALSE) ;

-

-    EPHYR_LOG ("enter. win:%p\n", a_win) ;

-

-    screen->CreateWindow = screen_priv->CreateWindow ;

-    is_ok = (*screen->CreateWindow) (a_win) ;

-    screen->CreateWindow = ephyrDRICreateWindow ;

-

-    if (is_ok) {

-	dixSetPrivate(&a_win->devPrivates, ephyrDRIWindowKey, NULL);

-    }

-    return is_ok ;

-}

-

-static Bool

-ephyrDRIDestroyWindow (WindowPtr a_win)

-{

-    Bool is_ok=FALSE ;

-    ScreenPtr screen=NULL ;

-    EphyrDRIScreenPrivPtr screen_priv =NULL;

-

-    EPHYR_RETURN_VAL_IF_FAIL (a_win, FALSE) ;

-    screen = a_win->drawable.pScreen ;

-    EPHYR_RETURN_VAL_IF_FAIL (screen, FALSE) ;

-    screen_priv = GET_EPHYR_DRI_SCREEN_PRIV (screen) ;

-    EPHYR_RETURN_VAL_IF_FAIL (screen_priv

-                              && screen_priv->DestroyWindow,

-                              FALSE) ;

-

-    screen->DestroyWindow = screen_priv->DestroyWindow ;

-    if (screen->DestroyWindow) {

-        is_ok = (*screen->DestroyWindow) (a_win) ;

-    }

-    screen->DestroyWindow = ephyrDRIDestroyWindow ;

-

-    if (is_ok) {

-        EphyrDRIWindowPrivPtr win_priv=GET_EPHYR_DRI_WINDOW_PRIV (a_win) ;

-        if (win_priv) {

-            destroyHostPeerWindow (a_win) ;

-            free(win_priv) ;

-	    dixSetPrivate(&a_win->devPrivates, ephyrDRIWindowKey, NULL);

-            EPHYR_LOG ("destroyed the remote peer window\n") ;

-        }

-    }

-    return is_ok ;

-}

-

-static void

-ephyrDRIMoveWindow (WindowPtr a_win,

-                    int a_x, int a_y,

-                    WindowPtr a_siblings,

-                    VTKind a_kind)

-{

-    Bool is_ok=FALSE ;

-    ScreenPtr screen=NULL ;

-    EphyrDRIScreenPrivPtr screen_priv =NULL;

-    EphyrDRIWindowPrivPtr win_priv=NULL ;

-    EphyrWindowPair *pair=NULL ;

-    EphyrBox geo;

-    int x=0,y=0;/*coords relative to parent window*/

-

-    EPHYR_RETURN_IF_FAIL (a_win) ;

-

-    EPHYR_LOG ("enter\n") ;

-    screen = a_win->drawable.pScreen ;

-    EPHYR_RETURN_IF_FAIL (screen) ;

-    screen_priv = GET_EPHYR_DRI_SCREEN_PRIV (screen) ;

-    EPHYR_RETURN_IF_FAIL (screen_priv

-                          && screen_priv->MoveWindow) ;

-

-    screen->MoveWindow = screen_priv->MoveWindow ;

-    if (screen->MoveWindow) {

-        (*screen->MoveWindow) (a_win, a_x, a_y, a_siblings, a_kind) ;

-    }

-    screen->MoveWindow = ephyrDRIMoveWindow ;

-

-    EPHYR_LOG ("window: %p\n", a_win) ;

-    if (!a_win->parent) {

-        EPHYR_LOG ("cannot move root window\n") ;

-        is_ok = TRUE ;

-        goto out ;

-    }

-    win_priv = GET_EPHYR_DRI_WINDOW_PRIV (a_win) ;

-    if (!win_priv) {

-        EPHYR_LOG ("not a DRI peered window\n") ;

-        is_ok = TRUE ;

-        goto out ;

-    }

-    if (!findWindowPairFromLocal (a_win, &pair) || !pair) {

-        EPHYR_LOG_ERROR ("failed to get window pair\n") ;

-        goto out ;

-    }

-    /*compute position relative to parent window*/

-    x = a_win->drawable.x - a_win->parent->drawable.x ;

-    y = a_win->drawable.y - a_win->parent->drawable.y ;

-    /*set the geometry to pass to hostx_set_window_geometry*/

-    memset (&geo, 0, sizeof (geo)) ;

-    geo.x = x ;

-    geo.y = y ;

-    geo.width = a_win->drawable.width ;

-    geo.height = a_win->drawable.height ;

-    hostx_set_window_geometry (pair->remote, &geo) ;

-    is_ok = TRUE ;

-

-out:

-    EPHYR_LOG ("leave. is_ok:%d\n", is_ok) ;

-    /*do cleanup here*/

-}

-

-static Bool

-ephyrDRIPositionWindow (WindowPtr a_win,

-                        int a_x, int a_y)

-{

-    Bool is_ok=FALSE ;

-    ScreenPtr screen=NULL ;

-    EphyrDRIScreenPrivPtr screen_priv =NULL;

-    EphyrDRIWindowPrivPtr win_priv=NULL ;

-    EphyrWindowPair *pair=NULL ;

-    EphyrBox geo;

-

-    EPHYR_RETURN_VAL_IF_FAIL (a_win, FALSE) ;

-

-    EPHYR_LOG ("enter\n") ;

-    screen = a_win->drawable.pScreen ;

-    EPHYR_RETURN_VAL_IF_FAIL (screen, FALSE) ;

-    screen_priv = GET_EPHYR_DRI_SCREEN_PRIV (screen) ;

-    EPHYR_RETURN_VAL_IF_FAIL (screen_priv

-                              && screen_priv->PositionWindow,

-                              FALSE) ;

-

-    screen->PositionWindow = screen_priv->PositionWindow ;

-    if (screen->PositionWindow) {

-        (*screen->PositionWindow) (a_win, a_x, a_y) ;

-    }

-    screen->PositionWindow = ephyrDRIPositionWindow ;

-

-    EPHYR_LOG ("window: %p\n", a_win) ;

-    win_priv = GET_EPHYR_DRI_WINDOW_PRIV (a_win) ;

-    if (!win_priv) {

-        EPHYR_LOG ("not a DRI peered window\n") ;

-        is_ok = TRUE ;

-        goto out ;

-    }

-    if (!findWindowPairFromLocal (a_win, &pair) || !pair) {

-        EPHYR_LOG_ERROR ("failed to get window pair\n") ;

-        goto out ;

-    }

-    /*set the geometry to pass to hostx_set_window_geometry*/

-    memset (&geo, 0, sizeof (geo)) ;

-    geo.x = a_x ;

-    geo.y = a_y ;

-    geo.width = a_win->drawable.width ;

-    geo.height = a_win->drawable.height ;

-    hostx_set_window_geometry (pair->remote, &geo) ;

-    is_ok = TRUE ;

-

-out:

-    EPHYR_LOG ("leave. is_ok:%d\n", is_ok) ;

-    /*do cleanup here*/

-    return is_ok ;

-}

-

-static void

-ephyrDRIClipNotify (WindowPtr a_win,

-                    int a_x, int a_y)

-{

-    Bool is_ok=FALSE ;

-    ScreenPtr screen=NULL ;

-    EphyrDRIScreenPrivPtr screen_priv =NULL;

-    EphyrDRIWindowPrivPtr win_priv=NULL ;

-    EphyrWindowPair *pair=NULL ;

-    EphyrRect *rects=NULL;

-    int i=0 ;

-

-    EPHYR_RETURN_IF_FAIL (a_win) ;

-

-    EPHYR_LOG ("enter\n") ;

-    screen = a_win->drawable.pScreen ;

-    EPHYR_RETURN_IF_FAIL (screen) ;

-    screen_priv = GET_EPHYR_DRI_SCREEN_PRIV (screen) ;

-    EPHYR_RETURN_IF_FAIL (screen_priv && screen_priv->ClipNotify) ;

-

-    screen->ClipNotify = screen_priv->ClipNotify ;

-    if (screen->ClipNotify) {

-        (*screen->ClipNotify) (a_win, a_x, a_y) ;

-    }

-    screen->ClipNotify = ephyrDRIClipNotify ;

-

-    EPHYR_LOG ("window: %p\n", a_win) ;

-    win_priv = GET_EPHYR_DRI_WINDOW_PRIV (a_win) ;

-    if (!win_priv) {

-        EPHYR_LOG ("not a DRI peered window\n") ;

-        is_ok = TRUE ;

-        goto out ;

-    }

-    if (!findWindowPairFromLocal (a_win, &pair) || !pair) {

-        EPHYR_LOG_ERROR ("failed to get window pair\n") ;

-        goto out ;

-    }

-    rects = calloc(RegionNumRects (&a_win->clipList),

-                     sizeof (EphyrRect)) ;

-    for (i=0; i < RegionNumRects (&a_win->clipList); i++) {

-        memmove (&rects[i],

-                 &RegionRects (&a_win->clipList)[i],

-                 sizeof (EphyrRect)) ;

-        rects[i].x1 -= a_win->drawable.x;

-        rects[i].x2 -= a_win->drawable.x;

-        rects[i].y1 -= a_win->drawable.y;

-        rects[i].y2 -= a_win->drawable.y;

-    }

-    /*

-     * push the clipping region of this window

-     * to the peer window in the host

-     */

-    is_ok = hostx_set_window_bounding_rectangles

-                                (pair->remote,

-                                 rects,

-                                 RegionNumRects (&a_win->clipList)) ;

-    is_ok = TRUE ;

-

-out:

-    free(rects) ;

-    rects = NULL ;

-

-    EPHYR_LOG ("leave. is_ok:%d\n", is_ok) ;

-    /*do cleanup here*/

-}

-

-/**

- * Duplicates a visual of a_screen

- * In screen a_screen, for depth a_depth, find a visual which

- * bitsPerRGBValue and colormap size equal

- * a_bits_per_rgb_values and a_colormap_entries.

- * The ID of that duplicated visual is set to a_new_id.

- * That duplicated visual is then added to the list of visuals

- * of the screen.

- */

-static Bool

-EphyrDuplicateVisual (unsigned int a_screen,

-                      short a_depth,

-                      short a_class,

-                      short a_bits_per_rgb_values,

-                      short a_colormap_entries,

-                      unsigned int a_red_mask,

-                      unsigned int a_green_mask,

-                      unsigned int a_blue_mask,

-                      unsigned int a_new_id)

-{

-    Bool is_ok = FALSE, found_visual=FALSE, found_depth=FALSE ;

-    ScreenPtr screen=NULL ;

-    VisualRec new_visual, *new_visuals=NULL ;

-    int i=0 ;

-

-    EPHYR_LOG ("enter\n") ; 

-    if (a_screen >= screenInfo.numScreens) {

-        EPHYR_LOG_ERROR ("bad screen number\n") ;

-        goto out;

-    }

-    memset (&new_visual, 0, sizeof (VisualRec)) ;

-

-    /*get the screen pointed to by a_screen*/

-    screen = screenInfo.screens[a_screen] ;

-    EPHYR_RETURN_VAL_IF_FAIL (screen, FALSE) ;

-

-    /*

-     * In that screen, first look for an existing visual that has the

-     * same characteristics as those passed in parameter

-     * to this function and copy it.

-     */

-    for (i=0; i < screen->numVisuals; i++) {

-        if (screen->visuals[i].bitsPerRGBValue == a_bits_per_rgb_values &&

-            screen->visuals[i].ColormapEntries == a_colormap_entries ) {

-            /*copy the visual found*/

-            memcpy (&new_visual, &screen->visuals[i], sizeof (new_visual)) ;

-            new_visual.vid = a_new_id ;

-            new_visual.class = a_class ;

-            new_visual.redMask = a_red_mask ;

-            new_visual.greenMask = a_green_mask ;

-            new_visual.blueMask = a_blue_mask ;

-            found_visual = TRUE ;

-            EPHYR_LOG ("found a visual that matches visual id: %d\n",

-                       a_new_id) ;

-            break;

-        }

-    }

-    if (!found_visual) {

-        EPHYR_LOG ("did not find any visual matching %d\n", a_new_id) ;

-        goto out ;

-    }

-    /*

-     * be prepare to extend screen->visuals to add new_visual to it

-     */

-    new_visuals = calloc(screen->numVisuals+1, sizeof (VisualRec)) ;

-    memmove (new_visuals,

-             screen->visuals,

-             screen->numVisuals*sizeof (VisualRec)) ;

-    memmove (&new_visuals[screen->numVisuals],

-             &new_visual,

-             sizeof (VisualRec)) ;

-    /*

-     * Now, in that same screen, update the screen->allowedDepths member.

-     * In that array, each element represents the visuals applicable to

-     * a given depth. So we need to add an entry matching the new visual

-     * that we are going to add to screen->visuals

-     */

-    for (i=0; i<screen->numDepths; i++) {

-        VisualID *vids=NULL;

-        DepthPtr cur_depth=NULL ;

-        /*find the entry matching a_depth*/

-        if (screen->allowedDepths[i].depth != a_depth)

-            continue ;

-        cur_depth = &screen->allowedDepths[i];

-        /*

-         * extend the list of visual IDs in that entry,

-         * so to add a_new_id in there.

-         */

-        vids = realloc(cur_depth->vids,

-                         (cur_depth->numVids+1)*sizeof (VisualID));

-        if (!vids) {

-            EPHYR_LOG_ERROR ("failed to realloc numids\n") ;

-            goto out ;

-        }

-        vids[cur_depth->numVids] = a_new_id ;

-        /*

-         * Okay now commit our change.

-         * Do really update screen->allowedDepths[i]

-         */

-        cur_depth->numVids++ ;

-        cur_depth->vids = vids ;

-        found_depth=TRUE;

-    }

-    if (!found_depth) {

-        EPHYR_LOG_ERROR ("failed to update screen[%d]->allowedDepth\n",

-                         a_screen) ;

-        goto out ;

-    }

-    /*

-     * Commit our change to screen->visuals

-     */

-    free(screen->visuals) ;

-    screen->visuals = new_visuals ;

-    screen->numVisuals++ ;

-    new_visuals = NULL ;

-

-    is_ok = TRUE ;

-out:

-    free(new_visuals) ;

-    new_visuals = NULL ;

-

-    EPHYR_LOG ("leave\n") ; 

-    return is_ok ;

-}

-

-/**

- * Duplicates the visuals of the host X server.

- * This is necessary to have visuals that have the same

- * ID as those of the host X. It is important to have that for

- * GLX.

- */

-static Bool

-EphyrMirrorHostVisuals (ScreenPtr a_screen)

-{

-    Bool is_ok=FALSE;

-    EphyrHostVisualInfo  *visuals=NULL;

-    int nb_visuals=0, i=0;

-

-    EPHYR_LOG ("enter\n") ;

-    if (!hostx_get_visuals_info (&visuals, &nb_visuals)) {

-        EPHYR_LOG_ERROR ("failed to get host visuals\n") ;

-        goto out ;

-    }

-    for (i=0; i<nb_visuals; i++) {

-        if (!EphyrDuplicateVisual (a_screen->myNum,

-                                   visuals[i].depth,

-                                   visuals[i].class,

-                                   visuals[i].bits_per_rgb,

-                                   visuals[i].colormap_size,

-                                   visuals[i].red_mask,

-                                   visuals[i].green_mask,

-                                   visuals[i].blue_mask,

-                                   visuals[i].visualid)) {

-            EPHYR_LOG_ERROR ("failed to duplicate host visual %d\n",

-                             (int)visuals[i].visualid) ;

-        }

-    }

-

-    is_ok = TRUE ;

-out:

-    EPHYR_LOG ("leave\n") ;

-    return is_ok;

-}

-

-

-static int

-ProcXF86DRIQueryVersion (register ClientPtr client)

-{

-    xXF86DRIQueryVersionReply rep;

-    register int n;

-    REQUEST_SIZE_MATCH(xXF86DRIQueryVersionReq);

-

-    EPHYR_LOG ("enter\n") ;

-

-    rep.type = X_Reply;

-    rep.length = 0;

-    rep.sequenceNumber = client->sequence;

-    rep.majorVersion = SERVER_XF86DRI_MAJOR_VERSION;

-    rep.minorVersion = SERVER_XF86DRI_MINOR_VERSION;

-    rep.patchVersion = SERVER_XF86DRI_PATCH_VERSION;

-    if (client->swapped) {

-    	swaps(&rep.sequenceNumber, n);

-    	swapl(&rep.length, n);

-	swaps(&rep.majorVersion, n);

-	swaps(&rep.minorVersion, n);

-	swapl(&rep.patchVersion, n);

-    }

-    WriteToClient(client, sizeof(xXF86DRIQueryVersionReply), (char *)&rep);

-    EPHYR_LOG ("leave\n") ;

-    return Success;

-}

-

-static int

-ProcXF86DRIQueryDirectRenderingCapable (register ClientPtr client)

-{

-    xXF86DRIQueryDirectRenderingCapableReply	rep;

-    Bool isCapable;

-    register int n;

-    REQUEST(xXF86DRIQueryDirectRenderingCapableReq);

-    REQUEST_SIZE_MATCH(xXF86DRIQueryDirectRenderingCapableReq);

-

-    EPHYR_LOG ("enter\n") ;

-    if (stuff->screen >= screenInfo.numScreens) {

-	client->errorValue = stuff->screen;

-	return BadValue;

-    }

-

-    rep.type = X_Reply;

-    rep.length = 0;

-    rep.sequenceNumber = client->sequence;

-

-    if (!ephyrDRIQueryDirectRenderingCapable (stuff->screen, &isCapable)) {

-        return BadValue;

-    }

-    rep.isCapable = isCapable;

-

-    if (!LocalClient(client) || client->swapped)

-	rep.isCapable = 0;

-

-    if (client->swapped) {

-    	swaps(&rep.sequenceNumber, n);

-    	swapl(&rep.length, n);

-    }

-

-    WriteToClient(client, sizeof(xXF86DRIQueryDirectRenderingCapableReply), (char *)&rep);

-    EPHYR_LOG ("leave\n") ;

-

-    return Success;

-}

-

-static int

-ProcXF86DRIOpenConnection (register ClientPtr client)

-{

-    xXF86DRIOpenConnectionReply rep;

-    drm_handle_t			hSAREA;

-    char*			busIdString = NULL;

-    REQUEST(xXF86DRIOpenConnectionReq);

-    REQUEST_SIZE_MATCH(xXF86DRIOpenConnectionReq);

-

-    EPHYR_LOG ("enter\n") ;

-    if (stuff->screen >= screenInfo.numScreens) {

-	client->errorValue = stuff->screen;

-	return BadValue;

-    }

-

-    if (!ephyrDRIOpenConnection(stuff->screen,

-                                &hSAREA,

-                                &busIdString)) {

-        return BadValue;

-    }

-

-    rep.type = X_Reply;

-    rep.sequenceNumber = client->sequence;

-    rep.busIdStringLength = 0;

-    if (busIdString)

-	rep.busIdStringLength = strlen(busIdString);

-    rep.length = bytes_to_int32(SIZEOF(xXF86DRIOpenConnectionReply) - SIZEOF(xGenericReply) +

-                  pad_to_int32(rep.busIdStringLength));

-

-    rep.hSAREALow  = (CARD32)(hSAREA & 0xffffffff);

-#if defined(LONG64) && !defined(__linux__)

-    rep.hSAREAHigh = (CARD32)(hSAREA >> 32);

-#else

-    rep.hSAREAHigh = 0;

-#endif

-

-    WriteToClient(client, sizeof(xXF86DRIOpenConnectionReply), (char *)&rep);

-    if (rep.busIdStringLength)

-        WriteToClient(client, rep.busIdStringLength, busIdString);

-    free(busIdString);

-    EPHYR_LOG ("leave\n") ;

-    return Success;

-}

-

-static int

-ProcXF86DRIAuthConnection  (register ClientPtr client)

-{

-    xXF86DRIAuthConnectionReply rep;

-    REQUEST(xXF86DRIAuthConnectionReq);

-    REQUEST_SIZE_MATCH(xXF86DRIAuthConnectionReq);

-

-    EPHYR_LOG ("enter\n") ;

-    if (stuff->screen >= screenInfo.numScreens) {

-	client->errorValue = stuff->screen;

-	return BadValue;

-    }

-

-    rep.type = X_Reply;

-    rep.length = 0;

-    rep.sequenceNumber = client->sequence;

-    rep.authenticated = 1;

-

-    if (!ephyrDRIAuthConnection (stuff->screen, stuff->magic)) {

-        ErrorF("Failed to authenticate %lu\n", (unsigned long)stuff->magic);

-        rep.authenticated = 0;

-    }

-    WriteToClient(client, sizeof(xXF86DRIAuthConnectionReply), (char *)&rep);

-    EPHYR_LOG ("leave\n") ;

-    return Success;

-}

-

-static int

-ProcXF86DRICloseConnection (register ClientPtr client)

-{

-    REQUEST(xXF86DRICloseConnectionReq);

-    REQUEST_SIZE_MATCH(xXF86DRICloseConnectionReq);

-    EPHYR_LOG ("enter\n") ;

-    if (stuff->screen >= screenInfo.numScreens) {

-        client->errorValue = stuff->screen;

-        return BadValue;

-    }

-

-    /*

-    DRICloseConnection( screenInfo.screens[stuff->screen]);

-    */

-

-    EPHYR_LOG ("leave\n") ;

-    return Success;

-}

-

-static int

-ProcXF86DRIGetClientDriverName (register ClientPtr client)

-{

-    xXF86DRIGetClientDriverNameReply	rep;

-    char* clientDriverName;

-    REQUEST(xXF86DRIGetClientDriverNameReq);

-    REQUEST_SIZE_MATCH(xXF86DRIGetClientDriverNameReq);

-

-    EPHYR_LOG ("enter\n") ;

-    if (stuff->screen >= screenInfo.numScreens) {

-	client->errorValue = stuff->screen;

-	return BadValue;

-    }

-

-    ephyrDRIGetClientDriverName (stuff->screen,

-                                 (int *)&rep.ddxDriverMajorVersion,

-                                 (int *)&rep.ddxDriverMinorVersion,

-                                 (int *)&rep.ddxDriverPatchVersion,

-                                 &clientDriverName);

-

-    rep.type = X_Reply;

-    rep.sequenceNumber = client->sequence;

-    rep.clientDriverNameLength = 0;

-    if (clientDriverName)

-	rep.clientDriverNameLength = strlen(clientDriverName);

-    rep.length = bytes_to_int32(SIZEOF(xXF86DRIGetClientDriverNameReply) -

-			SIZEOF(xGenericReply) +

-			pad_to_int32(rep.clientDriverNameLength));

-

-    WriteToClient(client, 

-	sizeof(xXF86DRIGetClientDriverNameReply), (char *)&rep);

-    if (rep.clientDriverNameLength)

-	WriteToClient(client, 

-                      rep.clientDriverNameLength, 

-                      clientDriverName);

-    EPHYR_LOG ("leave\n") ;

-    return Success;

-}

-

-static int

-ProcXF86DRICreateContext (register ClientPtr client)

-{

-    xXF86DRICreateContextReply	rep;

-    ScreenPtr pScreen;

-    VisualPtr visual;

-    int i=0;

-    unsigned long context_id=0;

-    REQUEST(xXF86DRICreateContextReq);

-    REQUEST_SIZE_MATCH(xXF86DRICreateContextReq);

-

-    EPHYR_LOG ("enter\n") ;

-    if (stuff->screen >= screenInfo.numScreens) {

-	client->errorValue = stuff->screen;

-	return BadValue;

-    }

-

-    rep.type = X_Reply;

-    rep.length = 0;

-    rep.sequenceNumber = client->sequence;

-

-    pScreen = screenInfo.screens[stuff->screen];

-    visual = pScreen->visuals;

-

-    /* Find the requested X visual */

-    for (i = 0; i < pScreen->numVisuals; i++, visual++)

-	if (visual->vid == stuff->visual)

-	    break;

-    if (i == pScreen->numVisuals) {

-	/* No visual found */

-	return BadValue;

-    }

-

-    context_id = stuff->context ;

-    if (!ephyrDRICreateContext (stuff->screen,

-                                stuff->visual,

-                                &context_id,

-                                (drm_context_t *)&rep.hHWContext)) {

-        return BadValue;

-    }

-

-    WriteToClient(client, sizeof(xXF86DRICreateContextReply), (char *)&rep);

-    EPHYR_LOG ("leave\n") ;

-    return Success;

-}

-

-static int

-ProcXF86DRIDestroyContext (register ClientPtr client)

-{

-    REQUEST(xXF86DRIDestroyContextReq);

-    REQUEST_SIZE_MATCH(xXF86DRIDestroyContextReq);

-    EPHYR_LOG ("enter\n") ;

-

-    if (stuff->screen >= screenInfo.numScreens) {

-        client->errorValue = stuff->screen;

-        return BadValue;

-    }

-

-   if (!ephyrDRIDestroyContext (stuff->screen, stuff->context)) {

-       return BadValue;

-   }

-

-    EPHYR_LOG ("leave\n") ;

-    return Success;

-}

-

-static Bool

-getWindowVisual (const WindowPtr a_win,

-                 VisualPtr *a_visual)

-{

-    int i=0, visual_id=0 ;

-    EPHYR_RETURN_VAL_IF_FAIL (a_win

-                              && a_win->drawable.pScreen

-                              && a_win->drawable.pScreen->visuals,

-                              FALSE) ;

-

-    visual_id = wVisual (a_win) ;

-    for (i=0; i < a_win->drawable.pScreen->numVisuals; i++) {

-        if (a_win->drawable.pScreen->visuals[i].vid == visual_id) {

-            *a_visual = &a_win->drawable.pScreen->visuals[i] ;

-            return TRUE ;

-        }

-    }

-    return FALSE ;

-}

-

-

-#define NUM_WINDOW_PAIRS 256

-static EphyrWindowPair window_pairs[NUM_WINDOW_PAIRS] ;

-

-static Bool

-appendWindowPairToList (WindowPtr a_local,

-                        int a_remote)

-{

-    int i=0 ;

-

-    EPHYR_RETURN_VAL_IF_FAIL (a_local, FALSE) ;

-

-    EPHYR_LOG ("(local,remote):(%p, %d)\n", a_local, a_remote) ;

-

-    for (i=0; i < NUM_WINDOW_PAIRS; i++) {

-        if (window_pairs[i].local == NULL) {

-            window_pairs[i].local = a_local ;

-            window_pairs[i].remote = a_remote ;

-            return TRUE ;

-        }

-    }

-    return FALSE ;

-}

-

-static Bool

-findWindowPairFromLocal (WindowPtr a_local,

-                         EphyrWindowPair **a_pair)

-{

-    int i=0 ;

-

-    EPHYR_RETURN_VAL_IF_FAIL (a_pair && a_local, FALSE) ;

-

-    for (i=0; i < NUM_WINDOW_PAIRS; i++) {

-        if (window_pairs[i].local == a_local) {

-            *a_pair = &window_pairs[i] ;

-            EPHYR_LOG ("found (%p, %d)\n",

-                       (*a_pair)->local,

-                       (*a_pair)->remote) ;

-            return TRUE ;

-        }

-    }

-    return FALSE ;

-}

-

-Bool

-findWindowPairFromRemote (int a_remote,

-                          EphyrWindowPair **a_pair)

-{

-    int i=0 ;

-

-    EPHYR_RETURN_VAL_IF_FAIL (a_pair, FALSE) ;

-

-    for (i=0; i < NUM_WINDOW_PAIRS; i++) {

-        if (window_pairs[i].remote == a_remote) {

-            *a_pair = &window_pairs[i] ;

-            EPHYR_LOG ("found (%p, %d)\n",

-                       (*a_pair)->local,

-                       (*a_pair)->remote) ;

-            return TRUE ;

-        }

-    }

-    return FALSE ;

-}

-

-static Bool

-createHostPeerWindow (const WindowPtr a_win,

-                      int *a_peer_win)

-{

-    Bool is_ok=FALSE ;

-    VisualPtr visual=NULL;

-    EphyrBox geo ;

-

-    EPHYR_RETURN_VAL_IF_FAIL (a_win && a_peer_win, FALSE) ;

-    EPHYR_RETURN_VAL_IF_FAIL (a_win->drawable.pScreen,

-                              FALSE) ;

-

-    EPHYR_LOG ("enter. a_win '%p'\n", a_win) ;

-    if (!getWindowVisual (a_win, &visual)) {

-        EPHYR_LOG_ERROR ("failed to get window visual\n") ;

-        goto out ;

-    }

-    if (!visual) {

-        EPHYR_LOG_ERROR ("failed to create visual\n") ;

-        goto out ;

-    }

-    memset (&geo, 0, sizeof (geo)) ;

-    geo.x = a_win->drawable.x ;

-    geo.y = a_win->drawable.y ;

-    geo.width = a_win->drawable.width ;

-    geo.height = a_win->drawable.height ;

-    if (!hostx_create_window (a_win->drawable.pScreen->myNum,

-                              &geo, visual->vid, a_peer_win)) {

-        EPHYR_LOG_ERROR ("failed to create host peer window\n") ;

-        goto out ;

-    }

-    if (!appendWindowPairToList (a_win, *a_peer_win)) {

-        EPHYR_LOG_ERROR ("failed to append window to pair list\n") ;

-        goto out ;

-    }

-    is_ok = TRUE ;

-out:

-    EPHYR_LOG ("leave:remote win%d\n", *a_peer_win) ;

-    return is_ok ;

-}

-

-static Bool

-destroyHostPeerWindow (const WindowPtr a_win)

-{

-    Bool is_ok = FALSE ;

-    EphyrWindowPair *pair=NULL ;

-    EPHYR_RETURN_VAL_IF_FAIL (a_win, FALSE) ;

-

-    EPHYR_LOG ("enter\n") ;

-

-    if (!findWindowPairFromLocal (a_win, &pair) || !pair) {

-        EPHYR_LOG_ERROR ("failed to find peer to local window\n") ;

-        goto out;

-    }

-    hostx_destroy_window (pair->remote) ;

-    is_ok = TRUE ;

-

-out:

-    EPHYR_LOG ("leave\n") ;

-    return is_ok;

-}

-

-static int

-ProcXF86DRICreateDrawable (ClientPtr client)

-{

-    xXF86DRICreateDrawableReply	rep;

-    DrawablePtr drawable=NULL;

-    WindowPtr window=NULL ;

-    EphyrWindowPair *pair=NULL ;

-    EphyrDRIWindowPrivPtr win_priv=NULL;

-    int rc=0, remote_win=0;

-    REQUEST(xXF86DRICreateDrawableReq);

-    REQUEST_SIZE_MATCH(xXF86DRICreateDrawableReq);

-

-    EPHYR_LOG ("enter\n") ;

-    if (stuff->screen >= screenInfo.numScreens) {

-        client->errorValue = stuff->screen;

-        return BadValue;

-    }

-

-    rep.type = X_Reply;

-    rep.length = 0;

-    rep.sequenceNumber = client->sequence;

-

-    rc = dixLookupDrawable (&drawable, stuff->drawable, client, 0,

-                            DixReadAccess);

-    if (rc != Success)

-        return rc;

-    if (drawable->type != DRAWABLE_WINDOW) {

-        EPHYR_LOG_ERROR ("non drawable windows are not yet supported\n") ;

-        return BadImplementation ;

-    }

-    EPHYR_LOG ("lookedup drawable %p\n", drawable) ;

-    window = (WindowPtr)drawable;

-    if (findWindowPairFromLocal (window, &pair) && pair) {

-        remote_win = pair->remote ;

-        EPHYR_LOG ("found window '%p' paire with remote '%d'\n",

-                   window, remote_win) ;

-    } else if (!createHostPeerWindow (window, &remote_win)) {

-        EPHYR_LOG_ERROR ("failed to create host peer window\n") ;

-        return BadAlloc ;

-    }

-

-    if (!ephyrDRICreateDrawable (stuff->screen,

-                                 remote_win,

-                                 (drm_drawable_t *)&rep.hHWDrawable)) {

-        EPHYR_LOG_ERROR ("failed to create dri drawable\n") ;

-        return BadValue;

-    }

-

-    win_priv = GET_EPHYR_DRI_WINDOW_PRIV (window) ;

-    if (!win_priv) {

-        win_priv = calloc(1, sizeof (EphyrDRIWindowPrivRec)) ;

-        if (!win_priv) {

-            EPHYR_LOG_ERROR ("failed to allocate window private\n") ;

-            return BadAlloc ;

-        }

-	dixSetPrivate(&window->devPrivates, ephyrDRIWindowKey, win_priv);

-        EPHYR_LOG ("paired window '%p' with remote '%d'\n",

-                   window, remote_win) ;

-    }

-

-    WriteToClient(client, sizeof(xXF86DRICreateDrawableReply), (char *)&rep);

-    EPHYR_LOG ("leave\n") ;

-    return Success;

-}

-

-static int

-ProcXF86DRIDestroyDrawable (register ClientPtr client)

-{

-    DrawablePtr drawable=NULL;

-    WindowPtr window=NULL;

-    EphyrWindowPair *pair=NULL;

-    int rc=0;

-    REQUEST(xXF86DRIDestroyDrawableReq);

-    REQUEST_SIZE_MATCH(xXF86DRIDestroyDrawableReq);

-

-    EPHYR_LOG ("enter\n") ;

-    if (stuff->screen >= screenInfo.numScreens) {

-        client->errorValue = stuff->screen;

-        return BadValue;

-    }

-

-    rc = dixLookupDrawable(&drawable,

-                           stuff->drawable,

-                           client,

-                           0,

-                           DixReadAccess);

-    if (rc != Success)

-        return rc;

-    if (drawable->type != DRAWABLE_WINDOW) {

-        EPHYR_LOG_ERROR ("non drawable windows are not yet supported\n") ;

-        return BadImplementation ;

-    }

-    window = (WindowPtr)drawable;

-    if (!findWindowPairFromLocal (window, &pair) && pair) {

-        EPHYR_LOG_ERROR ("failed to find pair window\n") ;

-        return BadImplementation;

-    }

-    if (!ephyrDRIDestroyDrawable(stuff->screen,

-                                 pair->remote/*drawable in host x*/)) {

-        EPHYR_LOG_ERROR ("failed to destroy dri drawable\n") ;

-        return BadImplementation;

-    }

-    pair->local=NULL ;

-    pair->remote=0;

-

-    EPHYR_LOG ("leave\n") ;

-    return Success;

-}

-

-static int

-ProcXF86DRIGetDrawableInfo (register ClientPtr client)

-{

-    xXF86DRIGetDrawableInfoReply rep;

-    DrawablePtr drawable;

-    WindowPtr window=NULL;

-    EphyrWindowPair *pair=NULL;

-    int X=0, Y=0, W=0, H=0, backX=0, backY=0, rc=0, i=0;

-    drm_clip_rect_t *clipRects=NULL;

-    drm_clip_rect_t *backClipRects=NULL;

-    REQUEST(xXF86DRIGetDrawableInfoReq);

-    REQUEST_SIZE_MATCH(xXF86DRIGetDrawableInfoReq);

-

-    EPHYR_LOG ("enter\n") ;

-    memset (&rep, 0, sizeof (rep)) ;

-    if (stuff->screen >= screenInfo.numScreens) {

-        client->errorValue = stuff->screen;

-        return BadValue;

-    }

-

-    rep.type = X_Reply;

-    rep.length = 0;

-    rep.sequenceNumber = client->sequence;

-

-    rc = dixLookupDrawable(&drawable, stuff->drawable, client, 0,

-                           DixReadAccess);

-    if (rc != Success || !drawable) {

-        EPHYR_LOG_ERROR ("could not get drawable\n") ;

-        return rc;

-    }

-

-    if (drawable->type != DRAWABLE_WINDOW) {

-        EPHYR_LOG_ERROR ("non windows type drawables are not yes supported\n") ;

-        return BadImplementation ;

-    }

-    window = (WindowPtr)drawable ;

-    memset (&pair, 0, sizeof (pair)) ;

-    if (!findWindowPairFromLocal (window, &pair) || !pair) {

-        EPHYR_LOG_ERROR ("failed to find remote peer drawable\n") ;

-        return BadMatch ;

-    }

-    EPHYR_LOG ("clip list of xephyr gl drawable:\n") ;

-    for (i=0; i < RegionNumRects (&window->clipList); i++) {

-        EPHYR_LOG ("x1:%d, y1:%d, x2:%d, y2:%d\n",

-                   RegionRects (&window->clipList)[i].x1,

-                   RegionRects (&window->clipList)[i].y1,

-                   RegionRects (&window->clipList)[i].x2,

-                   RegionRects (&window->clipList)[i].y2) ;

-    }

-

-    if (!ephyrDRIGetDrawableInfo (stuff->screen,

-                                  pair->remote/*the drawable in hostx*/,

-                                  (unsigned int*)&rep.drawableTableIndex,

-                                  (unsigned int*)&rep.drawableTableStamp,

-                                  (int*)&X,

-                                  (int*)&Y,

-                                  (int*)&W,

-                                  (int*)&H,

-                                  (int*)&rep.numClipRects,

-                                  &clipRects,

-                                  &backX,

-                                  &backY,

-                                  (int*)&rep.numBackClipRects,

-                                  &backClipRects)) {

-        return BadValue;

-    }

-    EPHYR_LOG ("num clip rects:%d, num back clip rects:%d\n",

-               (int)rep.numClipRects, (int)rep.numBackClipRects) ;

-

-    rep.drawableX = X;

-    rep.drawableY = Y;

-    rep.drawableWidth = W;

-    rep.drawableHeight = H;

-    rep.length = (SIZEOF(xXF86DRIGetDrawableInfoReply) -

-                  SIZEOF(xGenericReply));

-

-    rep.backX = backX;

-    rep.backY = backY;

-

-

-    if (rep.numClipRects) {

-        if (clipRects) {

-            ScreenPtr pScreen = screenInfo.screens[stuff->screen];

-            int i=0;

-            EPHYR_LOG ("clip list of host gl drawable:\n") ;

-            for (i = 0; i < rep.numClipRects; i++) {

-                clipRects[i].x1 = max (clipRects[i].x1, 0);

-                clipRects[i].y1 = max (clipRects[i].y1, 0);

-                clipRects[i].x2 = min (clipRects[i].x2,

-                                       pScreen->width + clipRects[i].x1) ;

-                clipRects[i].y2 = min (clipRects[i].y2,

-                                       pScreen->width + clipRects[i].y1) ;

-

-                EPHYR_LOG ("x1:%d, y1:%d, x2:%d, y2:%d\n",

-                           clipRects[i].x1, clipRects[i].y1,

-                           clipRects[i].x2, clipRects[i].y2) ;

-            }

-        } else {

-            rep.numClipRects = 0;

-        }

-    } else {

-        EPHYR_LOG ("got zero host gl drawable clipping rects\n") ;

-    }

-    rep.length += sizeof(drm_clip_rect_t) * rep.numClipRects;

-    backClipRects = clipRects ;

-    rep.numBackClipRects = rep.numClipRects ;

-    if (rep.numBackClipRects)

-        rep.length += sizeof(drm_clip_rect_t) * rep.numBackClipRects;

-    EPHYR_LOG ("num host clip rects:%d\n", (int)rep.numClipRects) ;

-    EPHYR_LOG ("num host back clip rects:%d\n", (int)rep.numBackClipRects) ;

-

-    rep.length = bytes_to_int32(rep.length);

-

-    WriteToClient(client, sizeof(xXF86DRIGetDrawableInfoReply), (char *)&rep);

-

-    if (rep.numClipRects) {

-        WriteToClient(client,

-                      sizeof(drm_clip_rect_t) * rep.numClipRects,

-                      (char *)clipRects);

-    }

-

-    if (rep.numBackClipRects) {

-        WriteToClient(client,

-                      sizeof(drm_clip_rect_t) * rep.numBackClipRects,

-                      (char *)backClipRects);

-    }

-    free(clipRects);

-    clipRects = NULL ;

-

-    EPHYR_LOG ("leave\n") ;

-

-    return Success;

-}

-

-static int

-ProcXF86DRIGetDeviceInfo (register ClientPtr client)

-{

-    xXF86DRIGetDeviceInfoReply	rep;

-    drm_handle_t hFrameBuffer;

-    void *pDevPrivate;

-    REQUEST(xXF86DRIGetDeviceInfoReq);

-    REQUEST_SIZE_MATCH(xXF86DRIGetDeviceInfoReq);

-

-    EPHYR_LOG ("enter\n") ;

-    if (stuff->screen >= screenInfo.numScreens) {

-        client->errorValue = stuff->screen;

-        return BadValue;

-    }

-

-    rep.type = X_Reply;

-    rep.length = 0;

-    rep.sequenceNumber = client->sequence;

-

-    if (!ephyrDRIGetDeviceInfo (stuff->screen,

-                &hFrameBuffer,

-                (int*)&rep.framebufferOrigin,

-                (int*)&rep.framebufferSize,

-                (int*)&rep.framebufferStride,

-                (int*)&rep.devPrivateSize,

-                &pDevPrivate)) {

-        return BadValue;

-    }

-

-    rep.hFrameBufferLow  = (CARD32)(hFrameBuffer & 0xffffffff);

-#if defined(LONG64) && !defined(__linux__)

-    rep.hFrameBufferHigh = (CARD32)(hFrameBuffer >> 32);

-#else

-    rep.hFrameBufferHigh = 0;

-#endif

-

-    rep.length = 0;

-    if (rep.devPrivateSize) {

-        rep.length = bytes_to_int32(SIZEOF(xXF86DRIGetDeviceInfoReply) -

-                SIZEOF(xGenericReply) +

-                pad_to_int32(rep.devPrivateSize));

-    }

-

-    WriteToClient(client, sizeof(xXF86DRIGetDeviceInfoReply), (char *)&rep);

-    if (rep.length) {

-        WriteToClient(client, rep.devPrivateSize, (char *)pDevPrivate);

-    }

-    EPHYR_LOG ("leave\n") ;

-    return Success;

-}

-

-static int

-ProcXF86DRIDispatch (register ClientPtr	client)

-{

-    REQUEST(xReq);

-    EPHYR_LOG ("enter\n") ;

-

-    switch (stuff->data)

-    {

-        case X_XF86DRIQueryVersion: {

-                EPHYR_LOG ("leave\n") ;

-                return ProcXF86DRIQueryVersion(client);

-        }

-        case X_XF86DRIQueryDirectRenderingCapable: {

-                EPHYR_LOG ("leave\n") ;

-                return ProcXF86DRIQueryDirectRenderingCapable(client);

-        }

-    }

-

-    if (!LocalClient(client))

-        return DRIErrorBase + XF86DRIClientNotLocal;

-

-    switch (stuff->data)

-    {

-        case X_XF86DRIOpenConnection: {

-            EPHYR_LOG ("leave\n") ;

-            return ProcXF86DRIOpenConnection(client);

-        }

-        case X_XF86DRICloseConnection: {

-            EPHYR_LOG ("leave\n") ;

-            return ProcXF86DRICloseConnection(client);

-        }

-        case X_XF86DRIGetClientDriverName: {

-            EPHYR_LOG ("leave\n") ;

-            return ProcXF86DRIGetClientDriverName(client);

-        }

-        case X_XF86DRICreateContext: {

-            EPHYR_LOG ("leave\n") ;

-            return ProcXF86DRICreateContext(client);

-        }

-        case X_XF86DRIDestroyContext: {

-            EPHYR_LOG ("leave\n") ;

-            return ProcXF86DRIDestroyContext(client);

-        }

-        case X_XF86DRICreateDrawable: {

-            EPHYR_LOG ("leave\n") ;

-            return ProcXF86DRICreateDrawable(client);

-        }

-        case X_XF86DRIDestroyDrawable: {

-            EPHYR_LOG ("leave\n") ;

-            return ProcXF86DRIDestroyDrawable(client);

-        }

-        case X_XF86DRIGetDrawableInfo: {

-            EPHYR_LOG ("leave\n") ;

-            return ProcXF86DRIGetDrawableInfo(client);

-        }

-        case X_XF86DRIGetDeviceInfo: {

-            EPHYR_LOG ("leave\n") ;

-            return ProcXF86DRIGetDeviceInfo(client);

-        }

-        case X_XF86DRIAuthConnection: {

-            EPHYR_LOG ("leave\n") ;

-            return ProcXF86DRIAuthConnection(client);

-        }

-            /* {Open,Close}FullScreen are deprecated now */

-        default: {

-            EPHYR_LOG ("leave\n") ;

-            return BadRequest;

-        }

-    }

-}

-

-static int

-SProcXF86DRIQueryVersion (register ClientPtr	client)

-{

-    register int n;

-    REQUEST(xXF86DRIQueryVersionReq);

-    swaps(&stuff->length, n);

-    return ProcXF86DRIQueryVersion(client);

-}

-

-static int

-SProcXF86DRIQueryDirectRenderingCapable (register ClientPtr client)

-{

-    register int n;

-    REQUEST(xXF86DRIQueryDirectRenderingCapableReq);

-    swaps(&stuff->length, n);

-    swapl(&stuff->screen, n);

-    return ProcXF86DRIQueryDirectRenderingCapable(client);

-}

-

-static int

-SProcXF86DRIDispatch (register ClientPtr client)

-{

-    REQUEST(xReq);

-

-    EPHYR_LOG ("enter\n") ;

-    /*

-     * Only local clients are allowed DRI access, but remote clients still need

-     * these requests to find out cleanly.

-     */

-    switch (stuff->data)

-    {

-        case X_XF86DRIQueryVersion: {

-            EPHYR_LOG ("leave\n") ;

-            return SProcXF86DRIQueryVersion(client);

-        }

-        case X_XF86DRIQueryDirectRenderingCapable: {

-            EPHYR_LOG ("leave\n") ;

-            return SProcXF86DRIQueryDirectRenderingCapable(client);

-        }

-        default: {

-            EPHYR_LOG ("leave\n") ;

-            return DRIErrorBase + XF86DRIClientNotLocal;

-        }

-    }

-}

-

-Bool

-ephyrDRIExtensionInit (ScreenPtr a_screen)

-{

-    Bool is_ok=FALSE ;

-    ExtensionEntry* extEntry=NULL;

-    EphyrDRIScreenPrivPtr screen_priv=NULL ;

-

-    EPHYR_LOG ("enter\n") ;

-    if (!hostx_has_dri ()) {

-        EPHYR_LOG ("host does not have DRI extension\n") ;

-        goto out ;

-    }

-    EPHYR_LOG ("host X does have DRI extension\n") ;

-    if (!hostx_has_xshape ()) {

-        EPHYR_LOG ("host does not have XShape extension\n") ;

-        goto out ;

-    }

-    EPHYR_LOG ("host X does have XShape extension\n") ;

-

-#ifdef XF86DRI_EVENTS

-    EventType = CreateNewResourceType (XF86DRIFreeEvents, "DRIEvents");

-    if (!EventType) {

-        EPHYR_LOG_ERROR ("failed to register DRI event resource type\n") ;

-        goto out ;

-    }

-#endif

-

-    if ((extEntry = AddExtension(XF86DRINAME,

-				 XF86DRINumberEvents,

-				 XF86DRINumberErrors,

-				 ProcXF86DRIDispatch,

-				 SProcXF86DRIDispatch,

-				 NULL,

-				 StandardMinorOpcode))) {

-	DRIReqCode = (unsigned char)extEntry->base;

-	DRIErrorBase = extEntry->errorBase;

-    } else {

-        EPHYR_LOG_ERROR ("failed to register DRI extension\n") ;

-        goto out ;

-    }

-    screen_priv = calloc(1, sizeof (EphyrDRIScreenPrivRec)) ;

-    if (!screen_priv) {

-        EPHYR_LOG_ERROR ("failed to allocate screen_priv\n") ;

-        goto out ;

-    }

-    dixSetPrivate(&a_screen->devPrivates, ephyrDRIScreenKey, screen_priv);

-

-    if (!ephyrDRIScreenInit (a_screen)) {

-        EPHYR_LOG_ERROR ("ephyrDRIScreenInit() failed\n") ;

-        goto out ;

-    }

-    EphyrMirrorHostVisuals (a_screen) ;

-    is_ok=TRUE ;

-out:

-    EPHYR_LOG ("leave\n") ;

-    return is_ok ;

-}

+/*
+ * Xephyr - A kdrive X server thats runs in a host X window.
+ *          Authored by Matthew Allum <mallum@openedhand.com>
+ * 
+ * Copyright © 2007 OpenedHand Ltd 
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of OpenedHand Ltd not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. OpenedHand Ltd makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * OpenedHand Ltd DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL OpenedHand Ltd BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ *
+ * This file is heavily copied from hw/xfree86/dri/xf86dri.c
+ *
+ * Authors:
+ *    Dodji Seketeli <dodji@openedhand.com>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <kdrive-config.h>
+#endif
+
+#include <string.h>
+
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#define _XF86DRI_SERVER_
+#include <X11/dri/xf86dri.h>
+#include <X11/dri/xf86driproto.h>
+#include "misc.h"
+#include "privates.h"
+#include "dixstruct.h"
+#include "extnsionst.h"
+#include "colormapst.h"
+#include "cursorstr.h"
+#include "scrnintstr.h"
+#include "windowstr.h"
+#include "servermd.h"
+#include "swaprep.h"
+#include "ephyrdri.h"
+#include "ephyrdriext.h"
+#include "hostx.h"
+#define _HAVE_XALLOC_DECLS
+#include "ephyrlog.h"
+#include "protocol-versions.h"
+
+typedef struct {
+    int foo;
+} EphyrDRIWindowPrivRec;
+typedef EphyrDRIWindowPrivRec* EphyrDRIWindowPrivPtr;
+
+typedef struct {
+    CreateWindowProcPtr CreateWindow ;
+    DestroyWindowProcPtr DestroyWindow ;
+    MoveWindowProcPtr MoveWindow ;
+    PositionWindowProcPtr PositionWindow ;
+    ClipNotifyProcPtr ClipNotify ;
+} EphyrDRIScreenPrivRec;
+typedef EphyrDRIScreenPrivRec* EphyrDRIScreenPrivPtr;
+
+static int DRIErrorBase;
+
+
+
+static Bool ephyrDRIScreenInit (ScreenPtr a_screen) ;
+static Bool ephyrDRICreateWindow (WindowPtr a_win) ;
+static Bool ephyrDRIDestroyWindow (WindowPtr a_win) ;
+static void ephyrDRIMoveWindow (WindowPtr a_win,
+                                int a_x, int a_y,
+                                WindowPtr a_siblings,
+                                VTKind a_kind);
+static Bool ephyrDRIPositionWindow (WindowPtr a_win,
+                                    int x, int y) ;
+static void ephyrDRIClipNotify (WindowPtr a_win,
+                                int a_x, int a_y) ;
+
+static Bool EphyrMirrorHostVisuals (ScreenPtr a_screen) ;
+static Bool destroyHostPeerWindow (const WindowPtr a_win) ;
+static Bool findWindowPairFromLocal (WindowPtr a_local,
+                                     EphyrWindowPair **a_pair);
+
+static unsigned char DRIReqCode = 0;
+
+static DevPrivateKeyRec ephyrDRIWindowKeyRec;
+#define ephyrDRIWindowKey (&ephyrDRIWindowKeyRec)
+static DevPrivateKeyRec ephyrDRIScreenKeyRec;
+#define ephyrDRIScreenKey (&ephyrDRIScreenKeyRec)
+
+#define GET_EPHYR_DRI_WINDOW_PRIV(win) ((EphyrDRIWindowPrivPtr) \
+    dixLookupPrivate(&(win)->devPrivates, ephyrDRIWindowKey))
+#define GET_EPHYR_DRI_SCREEN_PRIV(screen) ((EphyrDRIScreenPrivPtr) \
+    dixLookupPrivate(&(screen)->devPrivates, ephyrDRIScreenKey))
+
+static Bool
+ephyrDRIScreenInit (ScreenPtr a_screen)
+{
+    Bool is_ok=FALSE ;
+    EphyrDRIScreenPrivPtr screen_priv=NULL ;
+
+    EPHYR_RETURN_VAL_IF_FAIL (a_screen, FALSE) ;
+
+    screen_priv=GET_EPHYR_DRI_SCREEN_PRIV (a_screen) ;
+    EPHYR_RETURN_VAL_IF_FAIL (screen_priv, FALSE) ;
+
+    screen_priv->CreateWindow = a_screen->CreateWindow ;
+    screen_priv->DestroyWindow = a_screen->DestroyWindow ;
+    screen_priv->MoveWindow = a_screen->MoveWindow ;
+    screen_priv->PositionWindow = a_screen->PositionWindow ;
+    screen_priv->ClipNotify = a_screen->ClipNotify ;
+
+    a_screen->CreateWindow = ephyrDRICreateWindow ;
+    a_screen->DestroyWindow = ephyrDRIDestroyWindow ;
+    a_screen->MoveWindow = ephyrDRIMoveWindow ;
+    a_screen->PositionWindow = ephyrDRIPositionWindow ;
+    a_screen->ClipNotify = ephyrDRIClipNotify ;
+
+    is_ok = TRUE ;
+
+    return is_ok ;
+}
+
+static Bool
+ephyrDRICreateWindow (WindowPtr a_win)
+{
+    Bool is_ok=FALSE ;
+    ScreenPtr screen=NULL ;
+    EphyrDRIScreenPrivPtr screen_priv =NULL;
+
+    EPHYR_RETURN_VAL_IF_FAIL (a_win, FALSE) ;
+    screen = a_win->drawable.pScreen ;
+    EPHYR_RETURN_VAL_IF_FAIL (screen, FALSE) ;
+    screen_priv = GET_EPHYR_DRI_SCREEN_PRIV (screen) ;
+    EPHYR_RETURN_VAL_IF_FAIL (screen_priv
+                              && screen_priv->CreateWindow,
+                              FALSE) ;
+
+    EPHYR_LOG ("enter. win:%p\n", a_win) ;
+
+    screen->CreateWindow = screen_priv->CreateWindow ;
+    is_ok = (*screen->CreateWindow) (a_win) ;
+    screen->CreateWindow = ephyrDRICreateWindow ;
+
+    if (is_ok) {
+	dixSetPrivate(&a_win->devPrivates, ephyrDRIWindowKey, NULL);
+    }
+    return is_ok ;
+}
+
+static Bool
+ephyrDRIDestroyWindow (WindowPtr a_win)
+{
+    Bool is_ok=FALSE ;
+    ScreenPtr screen=NULL ;
+    EphyrDRIScreenPrivPtr screen_priv =NULL;
+
+    EPHYR_RETURN_VAL_IF_FAIL (a_win, FALSE) ;
+    screen = a_win->drawable.pScreen ;
+    EPHYR_RETURN_VAL_IF_FAIL (screen, FALSE) ;
+    screen_priv = GET_EPHYR_DRI_SCREEN_PRIV (screen) ;
+    EPHYR_RETURN_VAL_IF_FAIL (screen_priv
+                              && screen_priv->DestroyWindow,
+                              FALSE) ;
+
+    screen->DestroyWindow = screen_priv->DestroyWindow ;
+    if (screen->DestroyWindow) {
+        is_ok = (*screen->DestroyWindow) (a_win) ;
+    }
+    screen->DestroyWindow = ephyrDRIDestroyWindow ;
+
+    if (is_ok) {
+        EphyrDRIWindowPrivPtr win_priv=GET_EPHYR_DRI_WINDOW_PRIV (a_win) ;
+        if (win_priv) {
+            destroyHostPeerWindow (a_win) ;
+            free(win_priv) ;
+	    dixSetPrivate(&a_win->devPrivates, ephyrDRIWindowKey, NULL);
+            EPHYR_LOG ("destroyed the remote peer window\n") ;
+        }
+    }
+    return is_ok ;
+}
+
+static void
+ephyrDRIMoveWindow (WindowPtr a_win,
+                    int a_x, int a_y,
+                    WindowPtr a_siblings,
+                    VTKind a_kind)
+{
+    Bool is_ok=FALSE ;
+    ScreenPtr screen=NULL ;
+    EphyrDRIScreenPrivPtr screen_priv =NULL;
+    EphyrDRIWindowPrivPtr win_priv=NULL ;
+    EphyrWindowPair *pair=NULL ;
+    EphyrBox geo;
+    int x=0,y=0;/*coords relative to parent window*/
+
+    EPHYR_RETURN_IF_FAIL (a_win) ;
+
+    EPHYR_LOG ("enter\n") ;
+    screen = a_win->drawable.pScreen ;
+    EPHYR_RETURN_IF_FAIL (screen) ;
+    screen_priv = GET_EPHYR_DRI_SCREEN_PRIV (screen) ;
+    EPHYR_RETURN_IF_FAIL (screen_priv
+                          && screen_priv->MoveWindow) ;
+
+    screen->MoveWindow = screen_priv->MoveWindow ;
+    if (screen->MoveWindow) {
+        (*screen->MoveWindow) (a_win, a_x, a_y, a_siblings, a_kind) ;
+    }
+    screen->MoveWindow = ephyrDRIMoveWindow ;
+
+    EPHYR_LOG ("window: %p\n", a_win) ;
+    if (!a_win->parent) {
+        EPHYR_LOG ("cannot move root window\n") ;
+        is_ok = TRUE ;
+        goto out ;
+    }
+    win_priv = GET_EPHYR_DRI_WINDOW_PRIV (a_win) ;
+    if (!win_priv) {
+        EPHYR_LOG ("not a DRI peered window\n") ;
+        is_ok = TRUE ;
+        goto out ;
+    }
+    if (!findWindowPairFromLocal (a_win, &pair) || !pair) {
+        EPHYR_LOG_ERROR ("failed to get window pair\n") ;
+        goto out ;
+    }
+    /*compute position relative to parent window*/
+    x = a_win->drawable.x - a_win->parent->drawable.x ;
+    y = a_win->drawable.y - a_win->parent->drawable.y ;
+    /*set the geometry to pass to hostx_set_window_geometry*/
+    memset (&geo, 0, sizeof (geo)) ;
+    geo.x = x ;
+    geo.y = y ;
+    geo.width = a_win->drawable.width ;
+    geo.height = a_win->drawable.height ;
+    hostx_set_window_geometry (pair->remote, &geo) ;
+    is_ok = TRUE ;
+
+out:
+    EPHYR_LOG ("leave. is_ok:%d\n", is_ok) ;
+    /*do cleanup here*/
+}
+
+static Bool
+ephyrDRIPositionWindow (WindowPtr a_win,
+                        int a_x, int a_y)
+{
+    Bool is_ok=FALSE ;
+    ScreenPtr screen=NULL ;
+    EphyrDRIScreenPrivPtr screen_priv =NULL;
+    EphyrDRIWindowPrivPtr win_priv=NULL ;
+    EphyrWindowPair *pair=NULL ;
+    EphyrBox geo;
+
+    EPHYR_RETURN_VAL_IF_FAIL (a_win, FALSE) ;
+
+    EPHYR_LOG ("enter\n") ;
+    screen = a_win->drawable.pScreen ;
+    EPHYR_RETURN_VAL_IF_FAIL (screen, FALSE) ;
+    screen_priv = GET_EPHYR_DRI_SCREEN_PRIV (screen) ;
+    EPHYR_RETURN_VAL_IF_FAIL (screen_priv
+                              && screen_priv->PositionWindow,
+                              FALSE) ;
+
+    screen->PositionWindow = screen_priv->PositionWindow ;
+    if (screen->PositionWindow) {
+        (*screen->PositionWindow) (a_win, a_x, a_y) ;
+    }
+    screen->PositionWindow = ephyrDRIPositionWindow ;
+
+    EPHYR_LOG ("window: %p\n", a_win) ;
+    win_priv = GET_EPHYR_DRI_WINDOW_PRIV (a_win) ;
+    if (!win_priv) {
+        EPHYR_LOG ("not a DRI peered window\n") ;
+        is_ok = TRUE ;
+        goto out ;
+    }
+    if (!findWindowPairFromLocal (a_win, &pair) || !pair) {
+        EPHYR_LOG_ERROR ("failed to get window pair\n") ;
+        goto out ;
+    }
+    /*set the geometry to pass to hostx_set_window_geometry*/
+    memset (&geo, 0, sizeof (geo)) ;
+    geo.x = a_x ;
+    geo.y = a_y ;
+    geo.width = a_win->drawable.width ;
+    geo.height = a_win->drawable.height ;
+    hostx_set_window_geometry (pair->remote, &geo) ;
+    is_ok = TRUE ;
+
+out:
+    EPHYR_LOG ("leave. is_ok:%d\n", is_ok) ;
+    /*do cleanup here*/
+    return is_ok ;
+}
+
+static void
+ephyrDRIClipNotify (WindowPtr a_win,
+                    int a_x, int a_y)
+{
+    Bool is_ok=FALSE ;
+    ScreenPtr screen=NULL ;
+    EphyrDRIScreenPrivPtr screen_priv =NULL;
+    EphyrDRIWindowPrivPtr win_priv=NULL ;
+    EphyrWindowPair *pair=NULL ;
+    EphyrRect *rects=NULL;
+    int i=0 ;
+
+    EPHYR_RETURN_IF_FAIL (a_win) ;
+
+    EPHYR_LOG ("enter\n") ;
+    screen = a_win->drawable.pScreen ;
+    EPHYR_RETURN_IF_FAIL (screen) ;
+    screen_priv = GET_EPHYR_DRI_SCREEN_PRIV (screen) ;
+    EPHYR_RETURN_IF_FAIL (screen_priv && screen_priv->ClipNotify) ;
+
+    screen->ClipNotify = screen_priv->ClipNotify ;
+    if (screen->ClipNotify) {
+        (*screen->ClipNotify) (a_win, a_x, a_y) ;
+    }
+    screen->ClipNotify = ephyrDRIClipNotify ;
+
+    EPHYR_LOG ("window: %p\n", a_win) ;
+    win_priv = GET_EPHYR_DRI_WINDOW_PRIV (a_win) ;
+    if (!win_priv) {
+        EPHYR_LOG ("not a DRI peered window\n") ;
+        is_ok = TRUE ;
+        goto out ;
+    }
+    if (!findWindowPairFromLocal (a_win, &pair) || !pair) {
+        EPHYR_LOG_ERROR ("failed to get window pair\n") ;
+        goto out ;
+    }
+    rects = calloc(RegionNumRects (&a_win->clipList),
+                     sizeof (EphyrRect)) ;
+    for (i=0; i < RegionNumRects (&a_win->clipList); i++) {
+        memmove (&rects[i],
+                 &RegionRects (&a_win->clipList)[i],
+                 sizeof (EphyrRect)) ;
+        rects[i].x1 -= a_win->drawable.x;
+        rects[i].x2 -= a_win->drawable.x;
+        rects[i].y1 -= a_win->drawable.y;
+        rects[i].y2 -= a_win->drawable.y;
+    }
+    /*
+     * push the clipping region of this window
+     * to the peer window in the host
+     */
+    is_ok = hostx_set_window_bounding_rectangles
+                                (pair->remote,
+                                 rects,
+                                 RegionNumRects (&a_win->clipList)) ;
+    is_ok = TRUE ;
+
+out:
+    free(rects) ;
+    rects = NULL ;
+
+    EPHYR_LOG ("leave. is_ok:%d\n", is_ok) ;
+    /*do cleanup here*/
+}
+
+/**
+ * Duplicates a visual of a_screen
+ * In screen a_screen, for depth a_depth, find a visual which
+ * bitsPerRGBValue and colormap size equal
+ * a_bits_per_rgb_values and a_colormap_entries.
+ * The ID of that duplicated visual is set to a_new_id.
+ * That duplicated visual is then added to the list of visuals
+ * of the screen.
+ */
+static Bool
+EphyrDuplicateVisual (unsigned int a_screen,
+                      short a_depth,
+                      short a_class,
+                      short a_bits_per_rgb_values,
+                      short a_colormap_entries,
+                      unsigned int a_red_mask,
+                      unsigned int a_green_mask,
+                      unsigned int a_blue_mask,
+                      unsigned int a_new_id)
+{
+    Bool is_ok = FALSE, found_visual=FALSE, found_depth=FALSE ;
+    ScreenPtr screen=NULL ;
+    VisualRec new_visual, *new_visuals=NULL ;
+    int i=0 ;
+
+    EPHYR_LOG ("enter\n") ; 
+    if (a_screen >= screenInfo.numScreens) {
+        EPHYR_LOG_ERROR ("bad screen number\n") ;
+        goto out;
+    }
+    memset (&new_visual, 0, sizeof (VisualRec)) ;
+
+    /*get the screen pointed to by a_screen*/
+    screen = screenInfo.screens[a_screen] ;
+    EPHYR_RETURN_VAL_IF_FAIL (screen, FALSE) ;
+
+    /*
+     * In that screen, first look for an existing visual that has the
+     * same characteristics as those passed in parameter
+     * to this function and copy it.
+     */
+    for (i=0; i < screen->numVisuals; i++) {
+        if (screen->visuals[i].bitsPerRGBValue == a_bits_per_rgb_values &&
+            screen->visuals[i].ColormapEntries == a_colormap_entries ) {
+            /*copy the visual found*/
+            memcpy (&new_visual, &screen->visuals[i], sizeof (new_visual)) ;
+            new_visual.vid = a_new_id ;
+            new_visual.class = a_class ;
+            new_visual.redMask = a_red_mask ;
+            new_visual.greenMask = a_green_mask ;
+            new_visual.blueMask = a_blue_mask ;
+            found_visual = TRUE ;
+            EPHYR_LOG ("found a visual that matches visual id: %d\n",
+                       a_new_id) ;
+            break;
+        }
+    }
+    if (!found_visual) {
+        EPHYR_LOG ("did not find any visual matching %d\n", a_new_id) ;
+        goto out ;
+    }
+    /*
+     * be prepare to extend screen->visuals to add new_visual to it
+     */
+    new_visuals = calloc(screen->numVisuals+1, sizeof (VisualRec)) ;
+    memmove (new_visuals,
+             screen->visuals,
+             screen->numVisuals*sizeof (VisualRec)) ;
+    memmove (&new_visuals[screen->numVisuals],
+             &new_visual,
+             sizeof (VisualRec)) ;
+    /*
+     * Now, in that same screen, update the screen->allowedDepths member.
+     * In that array, each element represents the visuals applicable to
+     * a given depth. So we need to add an entry matching the new visual
+     * that we are going to add to screen->visuals
+     */
+    for (i=0; i<screen->numDepths; i++) {
+        VisualID *vids=NULL;
+        DepthPtr cur_depth=NULL ;
+        /*find the entry matching a_depth*/
+        if (screen->allowedDepths[i].depth != a_depth)
+            continue ;
+        cur_depth = &screen->allowedDepths[i];
+        /*
+         * extend the list of visual IDs in that entry,
+         * so to add a_new_id in there.
+         */
+        vids = realloc(cur_depth->vids,
+                         (cur_depth->numVids+1)*sizeof (VisualID));
+        if (!vids) {
+            EPHYR_LOG_ERROR ("failed to realloc numids\n") ;
+            goto out ;
+        }
+        vids[cur_depth->numVids] = a_new_id ;
+        /*
+         * Okay now commit our change.
+         * Do really update screen->allowedDepths[i]
+         */
+        cur_depth->numVids++ ;
+        cur_depth->vids = vids ;
+        found_depth=TRUE;
+    }
+    if (!found_depth) {
+        EPHYR_LOG_ERROR ("failed to update screen[%d]->allowedDepth\n",
+                         a_screen) ;
+        goto out ;
+    }
+    /*
+     * Commit our change to screen->visuals
+     */
+    free(screen->visuals) ;
+    screen->visuals = new_visuals ;
+    screen->numVisuals++ ;
+    new_visuals = NULL ;
+
+    is_ok = TRUE ;
+out:
+    free(new_visuals) ;
+    new_visuals = NULL ;
+
+    EPHYR_LOG ("leave\n") ; 
+    return is_ok ;
+}
+
+/**
+ * Duplicates the visuals of the host X server.
+ * This is necessary to have visuals that have the same
+ * ID as those of the host X. It is important to have that for
+ * GLX.
+ */
+static Bool
+EphyrMirrorHostVisuals (ScreenPtr a_screen)
+{
+    Bool is_ok=FALSE;
+    EphyrHostVisualInfo  *visuals=NULL;
+    int nb_visuals=0, i=0;
+
+    EPHYR_LOG ("enter\n") ;
+    if (!hostx_get_visuals_info (&visuals, &nb_visuals)) {
+        EPHYR_LOG_ERROR ("failed to get host visuals\n") ;
+        goto out ;
+    }
+    for (i=0; i<nb_visuals; i++) {
+        if (!EphyrDuplicateVisual (a_screen->myNum,
+                                   visuals[i].depth,
+                                   visuals[i].class,
+                                   visuals[i].bits_per_rgb,
+                                   visuals[i].colormap_size,
+                                   visuals[i].red_mask,
+                                   visuals[i].green_mask,
+                                   visuals[i].blue_mask,
+                                   visuals[i].visualid)) {
+            EPHYR_LOG_ERROR ("failed to duplicate host visual %d\n",
+                             (int)visuals[i].visualid) ;
+        }
+    }
+
+    is_ok = TRUE ;
+out:
+    EPHYR_LOG ("leave\n") ;
+    return is_ok;
+}
+
+
+static int
+ProcXF86DRIQueryVersion (register ClientPtr client)
+{
+    xXF86DRIQueryVersionReply rep;
+    register int n;
+    REQUEST_SIZE_MATCH(xXF86DRIQueryVersionReq);
+
+    EPHYR_LOG ("enter\n") ;
+
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+    rep.majorVersion = SERVER_XF86DRI_MAJOR_VERSION;
+    rep.minorVersion = SERVER_XF86DRI_MINOR_VERSION;
+    rep.patchVersion = SERVER_XF86DRI_PATCH_VERSION;
+    if (client->swapped) {
+    	swaps(&rep.sequenceNumber, n);
+    	swapl(&rep.length, n);
+	swaps(&rep.majorVersion, n);
+	swaps(&rep.minorVersion, n);
+	swapl(&rep.patchVersion, n);
+    }
+    WriteToClient(client, sizeof(xXF86DRIQueryVersionReply), (char *)&rep);
+    EPHYR_LOG ("leave\n") ;
+    return Success;
+}
+
+static int
+ProcXF86DRIQueryDirectRenderingCapable (register ClientPtr client)
+{
+    xXF86DRIQueryDirectRenderingCapableReply	rep;
+    Bool isCapable;
+    register int n;
+    REQUEST(xXF86DRIQueryDirectRenderingCapableReq);
+    REQUEST_SIZE_MATCH(xXF86DRIQueryDirectRenderingCapableReq);
+
+    EPHYR_LOG ("enter\n") ;
+    if (stuff->screen >= screenInfo.numScreens) {
+	client->errorValue = stuff->screen;
+	return BadValue;
+    }
+
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+
+    if (!ephyrDRIQueryDirectRenderingCapable (stuff->screen, &isCapable)) {
+        return BadValue;
+    }
+    rep.isCapable = isCapable;
+
+    if (!LocalClient(client) || client->swapped)
+	rep.isCapable = 0;
+
+    if (client->swapped) {
+    	swaps(&rep.sequenceNumber, n);
+    	swapl(&rep.length, n);
+    }
+
+    WriteToClient(client, sizeof(xXF86DRIQueryDirectRenderingCapableReply), (char *)&rep);
+    EPHYR_LOG ("leave\n") ;
+
+    return Success;
+}
+
+static int
+ProcXF86DRIOpenConnection (register ClientPtr client)
+{
+    xXF86DRIOpenConnectionReply rep;
+    drm_handle_t			hSAREA;
+    char*			busIdString = NULL;
+    REQUEST(xXF86DRIOpenConnectionReq);
+    REQUEST_SIZE_MATCH(xXF86DRIOpenConnectionReq);
+
+    EPHYR_LOG ("enter\n") ;
+    if (stuff->screen >= screenInfo.numScreens) {
+	client->errorValue = stuff->screen;
+	return BadValue;
+    }
+
+    if (!ephyrDRIOpenConnection(stuff->screen,
+                                &hSAREA,
+                                &busIdString)) {
+        return BadValue;
+    }
+
+    rep.type = X_Reply;
+    rep.sequenceNumber = client->sequence;
+    rep.busIdStringLength = 0;
+    if (busIdString)
+	rep.busIdStringLength = strlen(busIdString);
+    rep.length = bytes_to_int32(SIZEOF(xXF86DRIOpenConnectionReply) - SIZEOF(xGenericReply) +
+                  pad_to_int32(rep.busIdStringLength));
+
+    rep.hSAREALow  = (CARD32)(hSAREA & 0xffffffff);
+#if defined(LONG64) && !defined(__linux__)
+    rep.hSAREAHigh = (CARD32)(hSAREA >> 32);
+#else
+    rep.hSAREAHigh = 0;
+#endif
+
+    WriteToClient(client, sizeof(xXF86DRIOpenConnectionReply), (char *)&rep);
+    if (rep.busIdStringLength)
+        WriteToClient(client, rep.busIdStringLength, busIdString);
+    free(busIdString);
+    EPHYR_LOG ("leave\n") ;
+    return Success;
+}
+
+static int
+ProcXF86DRIAuthConnection  (register ClientPtr client)
+{
+    xXF86DRIAuthConnectionReply rep;
+    REQUEST(xXF86DRIAuthConnectionReq);
+    REQUEST_SIZE_MATCH(xXF86DRIAuthConnectionReq);
+
+    EPHYR_LOG ("enter\n") ;
+    if (stuff->screen >= screenInfo.numScreens) {
+	client->errorValue = stuff->screen;
+	return BadValue;
+    }
+
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+    rep.authenticated = 1;
+
+    if (!ephyrDRIAuthConnection (stuff->screen, stuff->magic)) {
+        ErrorF("Failed to authenticate %lu\n", (unsigned long)stuff->magic);
+        rep.authenticated = 0;
+    }
+    WriteToClient(client, sizeof(xXF86DRIAuthConnectionReply), (char *)&rep);
+    EPHYR_LOG ("leave\n") ;
+    return Success;
+}
+
+static int
+ProcXF86DRICloseConnection (register ClientPtr client)
+{
+    REQUEST(xXF86DRICloseConnectionReq);
+    REQUEST_SIZE_MATCH(xXF86DRICloseConnectionReq);
+    EPHYR_LOG ("enter\n") ;
+    if (stuff->screen >= screenInfo.numScreens) {
+        client->errorValue = stuff->screen;
+        return BadValue;
+    }
+
+    /*
+    DRICloseConnection( screenInfo.screens[stuff->screen]);
+    */
+
+    EPHYR_LOG ("leave\n") ;
+    return Success;
+}
+
+static int
+ProcXF86DRIGetClientDriverName (register ClientPtr client)
+{
+    xXF86DRIGetClientDriverNameReply	rep;
+    char* clientDriverName;
+    REQUEST(xXF86DRIGetClientDriverNameReq);
+    REQUEST_SIZE_MATCH(xXF86DRIGetClientDriverNameReq);
+
+    EPHYR_LOG ("enter\n") ;
+    if (stuff->screen >= screenInfo.numScreens) {
+	client->errorValue = stuff->screen;
+	return BadValue;
+    }
+
+    ephyrDRIGetClientDriverName (stuff->screen,
+                                 (int *)&rep.ddxDriverMajorVersion,
+                                 (int *)&rep.ddxDriverMinorVersion,
+                                 (int *)&rep.ddxDriverPatchVersion,
+                                 &clientDriverName);
+
+    rep.type = X_Reply;
+    rep.sequenceNumber = client->sequence;
+    rep.clientDriverNameLength = 0;
+    if (clientDriverName)
+	rep.clientDriverNameLength = strlen(clientDriverName);
+    rep.length = bytes_to_int32(SIZEOF(xXF86DRIGetClientDriverNameReply) -
+			SIZEOF(xGenericReply) +
+			pad_to_int32(rep.clientDriverNameLength));
+
+    WriteToClient(client, 
+	sizeof(xXF86DRIGetClientDriverNameReply), (char *)&rep);
+    if (rep.clientDriverNameLength)
+	WriteToClient(client, 
+                      rep.clientDriverNameLength, 
+                      clientDriverName);
+    EPHYR_LOG ("leave\n") ;
+    return Success;
+}
+
+static int
+ProcXF86DRICreateContext (register ClientPtr client)
+{
+    xXF86DRICreateContextReply	rep;
+    ScreenPtr pScreen;
+    VisualPtr visual;
+    int i=0;
+    unsigned long context_id=0;
+    REQUEST(xXF86DRICreateContextReq);
+    REQUEST_SIZE_MATCH(xXF86DRICreateContextReq);
+
+    EPHYR_LOG ("enter\n") ;
+    if (stuff->screen >= screenInfo.numScreens) {
+	client->errorValue = stuff->screen;
+	return BadValue;
+    }
+
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+
+    pScreen = screenInfo.screens[stuff->screen];
+    visual = pScreen->visuals;
+
+    /* Find the requested X visual */
+    for (i = 0; i < pScreen->numVisuals; i++, visual++)
+	if (visual->vid == stuff->visual)
+	    break;
+    if (i == pScreen->numVisuals) {
+	/* No visual found */
+	return BadValue;
+    }
+
+    context_id = stuff->context ;
+    if (!ephyrDRICreateContext (stuff->screen,
+                                stuff->visual,
+                                &context_id,
+                                (drm_context_t *)&rep.hHWContext)) {
+        return BadValue;
+    }
+
+    WriteToClient(client, sizeof(xXF86DRICreateContextReply), (char *)&rep);
+    EPHYR_LOG ("leave\n") ;
+    return Success;
+}
+
+static int
+ProcXF86DRIDestroyContext (register ClientPtr client)
+{
+    REQUEST(xXF86DRIDestroyContextReq);
+    REQUEST_SIZE_MATCH(xXF86DRIDestroyContextReq);
+    EPHYR_LOG ("enter\n") ;
+
+    if (stuff->screen >= screenInfo.numScreens) {
+        client->errorValue = stuff->screen;
+        return BadValue;
+    }
+
+   if (!ephyrDRIDestroyContext (stuff->screen, stuff->context)) {
+       return BadValue;
+   }
+
+    EPHYR_LOG ("leave\n") ;
+    return Success;
+}
+
+static Bool
+getWindowVisual (const WindowPtr a_win,
+                 VisualPtr *a_visual)
+{
+    int i=0, visual_id=0 ;
+    EPHYR_RETURN_VAL_IF_FAIL (a_win
+                              && a_win->drawable.pScreen
+                              && a_win->drawable.pScreen->visuals,
+                              FALSE) ;
+
+    visual_id = wVisual (a_win) ;
+    for (i=0; i < a_win->drawable.pScreen->numVisuals; i++) {
+        if (a_win->drawable.pScreen->visuals[i].vid == visual_id) {
+            *a_visual = &a_win->drawable.pScreen->visuals[i] ;
+            return TRUE ;
+        }
+    }
+    return FALSE ;
+}
+
+
+#define NUM_WINDOW_PAIRS 256
+static EphyrWindowPair window_pairs[NUM_WINDOW_PAIRS] ;
+
+static Bool
+appendWindowPairToList (WindowPtr a_local,
+                        int a_remote)
+{
+    int i=0 ;
+
+    EPHYR_RETURN_VAL_IF_FAIL (a_local, FALSE) ;
+
+    EPHYR_LOG ("(local,remote):(%p, %d)\n", a_local, a_remote) ;
+
+    for (i=0; i < NUM_WINDOW_PAIRS; i++) {
+        if (window_pairs[i].local == NULL) {
+            window_pairs[i].local = a_local ;
+            window_pairs[i].remote = a_remote ;
+            return TRUE ;
+        }
+    }
+    return FALSE ;
+}
+
+static Bool
+findWindowPairFromLocal (WindowPtr a_local,
+                         EphyrWindowPair **a_pair)
+{
+    int i=0 ;
+
+    EPHYR_RETURN_VAL_IF_FAIL (a_pair && a_local, FALSE) ;
+
+    for (i=0; i < NUM_WINDOW_PAIRS; i++) {
+        if (window_pairs[i].local == a_local) {
+            *a_pair = &window_pairs[i] ;
+            EPHYR_LOG ("found (%p, %d)\n",
+                       (*a_pair)->local,
+                       (*a_pair)->remote) ;
+            return TRUE ;
+        }
+    }
+    return FALSE ;
+}
+
+Bool
+findWindowPairFromRemote (int a_remote,
+                          EphyrWindowPair **a_pair)
+{
+    int i=0 ;
+
+    EPHYR_RETURN_VAL_IF_FAIL (a_pair, FALSE) ;
+
+    for (i=0; i < NUM_WINDOW_PAIRS; i++) {
+        if (window_pairs[i].remote == a_remote) {
+            *a_pair = &window_pairs[i] ;
+            EPHYR_LOG ("found (%p, %d)\n",
+                       (*a_pair)->local,
+                       (*a_pair)->remote) ;
+            return TRUE ;
+        }
+    }
+    return FALSE ;
+}
+
+static Bool
+createHostPeerWindow (const WindowPtr a_win,
+                      int *a_peer_win)
+{
+    Bool is_ok=FALSE ;
+    VisualPtr visual=NULL;
+    EphyrBox geo ;
+
+    EPHYR_RETURN_VAL_IF_FAIL (a_win && a_peer_win, FALSE) ;
+    EPHYR_RETURN_VAL_IF_FAIL (a_win->drawable.pScreen,
+                              FALSE) ;
+
+    EPHYR_LOG ("enter. a_win '%p'\n", a_win) ;
+    if (!getWindowVisual (a_win, &visual)) {
+        EPHYR_LOG_ERROR ("failed to get window visual\n") ;
+        goto out ;
+    }
+    if (!visual) {
+        EPHYR_LOG_ERROR ("failed to create visual\n") ;
+        goto out ;
+    }
+    memset (&geo, 0, sizeof (geo)) ;
+    geo.x = a_win->drawable.x ;
+    geo.y = a_win->drawable.y ;
+    geo.width = a_win->drawable.width ;
+    geo.height = a_win->drawable.height ;
+    if (!hostx_create_window (a_win->drawable.pScreen->myNum,
+                              &geo, visual->vid, a_peer_win)) {
+        EPHYR_LOG_ERROR ("failed to create host peer window\n") ;
+        goto out ;
+    }
+    if (!appendWindowPairToList (a_win, *a_peer_win)) {
+        EPHYR_LOG_ERROR ("failed to append window to pair list\n") ;
+        goto out ;
+    }
+    is_ok = TRUE ;
+out:
+    EPHYR_LOG ("leave:remote win%d\n", *a_peer_win) ;
+    return is_ok ;
+}
+
+static Bool
+destroyHostPeerWindow (const WindowPtr a_win)
+{
+    Bool is_ok = FALSE ;
+    EphyrWindowPair *pair=NULL ;
+    EPHYR_RETURN_VAL_IF_FAIL (a_win, FALSE) ;
+
+    EPHYR_LOG ("enter\n") ;
+
+    if (!findWindowPairFromLocal (a_win, &pair) || !pair) {
+        EPHYR_LOG_ERROR ("failed to find peer to local window\n") ;
+        goto out;
+    }
+    hostx_destroy_window (pair->remote) ;
+    is_ok = TRUE ;
+
+out:
+    EPHYR_LOG ("leave\n") ;
+    return is_ok;
+}
+
+static int
+ProcXF86DRICreateDrawable (ClientPtr client)
+{
+    xXF86DRICreateDrawableReply	rep;
+    DrawablePtr drawable=NULL;
+    WindowPtr window=NULL ;
+    EphyrWindowPair *pair=NULL ;
+    EphyrDRIWindowPrivPtr win_priv=NULL;
+    int rc=0, remote_win=0;
+    REQUEST(xXF86DRICreateDrawableReq);
+    REQUEST_SIZE_MATCH(xXF86DRICreateDrawableReq);
+
+    EPHYR_LOG ("enter\n") ;
+    if (stuff->screen >= screenInfo.numScreens) {
+        client->errorValue = stuff->screen;
+        return BadValue;
+    }
+
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+
+    rc = dixLookupDrawable (&drawable, stuff->drawable, client, 0,
+                            DixReadAccess);
+    if (rc != Success)
+        return rc;
+    if (drawable->type != DRAWABLE_WINDOW) {
+        EPHYR_LOG_ERROR ("non drawable windows are not yet supported\n") ;
+        return BadImplementation ;
+    }
+    EPHYR_LOG ("lookedup drawable %p\n", drawable) ;
+    window = (WindowPtr)drawable;
+    if (findWindowPairFromLocal (window, &pair) && pair) {
+        remote_win = pair->remote ;
+        EPHYR_LOG ("found window '%p' paire with remote '%d'\n",
+                   window, remote_win) ;
+    } else if (!createHostPeerWindow (window, &remote_win)) {
+        EPHYR_LOG_ERROR ("failed to create host peer window\n") ;
+        return BadAlloc ;
+    }
+
+    if (!ephyrDRICreateDrawable (stuff->screen,
+                                 remote_win,
+                                 (drm_drawable_t *)&rep.hHWDrawable)) {
+        EPHYR_LOG_ERROR ("failed to create dri drawable\n") ;
+        return BadValue;
+    }
+
+    win_priv = GET_EPHYR_DRI_WINDOW_PRIV (window) ;
+    if (!win_priv) {
+        win_priv = calloc(1, sizeof (EphyrDRIWindowPrivRec)) ;
+        if (!win_priv) {
+            EPHYR_LOG_ERROR ("failed to allocate window private\n") ;
+            return BadAlloc ;
+        }
+	dixSetPrivate(&window->devPrivates, ephyrDRIWindowKey, win_priv);
+        EPHYR_LOG ("paired window '%p' with remote '%d'\n",
+                   window, remote_win) ;
+    }
+
+    WriteToClient(client, sizeof(xXF86DRICreateDrawableReply), (char *)&rep);
+    EPHYR_LOG ("leave\n") ;
+    return Success;
+}
+
+static int
+ProcXF86DRIDestroyDrawable (register ClientPtr client)
+{
+    DrawablePtr drawable=NULL;
+    WindowPtr window=NULL;
+    EphyrWindowPair *pair=NULL;
+    int rc=0;
+    REQUEST(xXF86DRIDestroyDrawableReq);
+    REQUEST_SIZE_MATCH(xXF86DRIDestroyDrawableReq);
+
+    EPHYR_LOG ("enter\n") ;
+    if (stuff->screen >= screenInfo.numScreens) {
+        client->errorValue = stuff->screen;
+        return BadValue;
+    }
+
+    rc = dixLookupDrawable(&drawable,
+                           stuff->drawable,
+                           client,
+                           0,
+                           DixReadAccess);
+    if (rc != Success)
+        return rc;
+    if (drawable->type != DRAWABLE_WINDOW) {
+        EPHYR_LOG_ERROR ("non drawable windows are not yet supported\n") ;
+        return BadImplementation ;
+    }
+    window = (WindowPtr)drawable;
+    if (!findWindowPairFromLocal (window, &pair) && pair) {
+        EPHYR_LOG_ERROR ("failed to find pair window\n") ;
+        return BadImplementation;
+    }
+    if (!ephyrDRIDestroyDrawable(stuff->screen,
+                                 pair->remote/*drawable in host x*/)) {
+        EPHYR_LOG_ERROR ("failed to destroy dri drawable\n") ;
+        return BadImplementation;
+    }
+    pair->local=NULL ;
+    pair->remote=0;
+
+    EPHYR_LOG ("leave\n") ;
+    return Success;
+}
+
+static int
+ProcXF86DRIGetDrawableInfo (register ClientPtr client)
+{
+    xXF86DRIGetDrawableInfoReply rep;
+    DrawablePtr drawable;
+    WindowPtr window=NULL;
+    EphyrWindowPair *pair=NULL;
+    int X=0, Y=0, W=0, H=0, backX=0, backY=0, rc=0, i=0;
+    drm_clip_rect_t *clipRects=NULL;
+    drm_clip_rect_t *backClipRects=NULL;
+    REQUEST(xXF86DRIGetDrawableInfoReq);
+    REQUEST_SIZE_MATCH(xXF86DRIGetDrawableInfoReq);
+
+    EPHYR_LOG ("enter\n") ;
+    memset (&rep, 0, sizeof (rep)) ;
+    if (stuff->screen >= screenInfo.numScreens) {
+        client->errorValue = stuff->screen;
+        return BadValue;
+    }
+
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+
+    rc = dixLookupDrawable(&drawable, stuff->drawable, client, 0,
+                           DixReadAccess);
+    if (rc != Success || !drawable) {
+        EPHYR_LOG_ERROR ("could not get drawable\n") ;
+        return rc;
+    }
+
+    if (drawable->type != DRAWABLE_WINDOW) {
+        EPHYR_LOG_ERROR ("non windows type drawables are not yes supported\n") ;
+        return BadImplementation ;
+    }
+    window = (WindowPtr)drawable ;
+    memset (&pair, 0, sizeof (pair)) ;
+    if (!findWindowPairFromLocal (window, &pair) || !pair) {
+        EPHYR_LOG_ERROR ("failed to find remote peer drawable\n") ;
+        return BadMatch ;
+    }
+    EPHYR_LOG ("clip list of xephyr gl drawable:\n") ;
+    for (i=0; i < RegionNumRects (&window->clipList); i++) {
+        EPHYR_LOG ("x1:%d, y1:%d, x2:%d, y2:%d\n",
+                   RegionRects (&window->clipList)[i].x1,
+                   RegionRects (&window->clipList)[i].y1,
+                   RegionRects (&window->clipList)[i].x2,
+                   RegionRects (&window->clipList)[i].y2) ;
+    }
+
+    if (!ephyrDRIGetDrawableInfo (stuff->screen,
+                                  pair->remote/*the drawable in hostx*/,
+                                  (unsigned int*)&rep.drawableTableIndex,
+                                  (unsigned int*)&rep.drawableTableStamp,
+                                  (int*)&X,
+                                  (int*)&Y,
+                                  (int*)&W,
+                                  (int*)&H,
+                                  (int*)&rep.numClipRects,
+                                  &clipRects,
+                                  &backX,
+                                  &backY,
+                                  (int*)&rep.numBackClipRects,
+                                  &backClipRects)) {
+        return BadValue;
+    }
+    EPHYR_LOG ("num clip rects:%d, num back clip rects:%d\n",
+               (int)rep.numClipRects, (int)rep.numBackClipRects) ;
+
+    rep.drawableX = X;
+    rep.drawableY = Y;
+    rep.drawableWidth = W;
+    rep.drawableHeight = H;
+    rep.length = (SIZEOF(xXF86DRIGetDrawableInfoReply) -
+                  SIZEOF(xGenericReply));
+
+    rep.backX = backX;
+    rep.backY = backY;
+
+
+    if (rep.numClipRects) {
+        if (clipRects) {
+            ScreenPtr pScreen = screenInfo.screens[stuff->screen];
+            int i=0;
+            EPHYR_LOG ("clip list of host gl drawable:\n") ;
+            for (i = 0; i < rep.numClipRects; i++) {
+                clipRects[i].x1 = max (clipRects[i].x1, 0);
+                clipRects[i].y1 = max (clipRects[i].y1, 0);
+                clipRects[i].x2 = min (clipRects[i].x2,
+                                       pScreen->width + clipRects[i].x1) ;
+                clipRects[i].y2 = min (clipRects[i].y2,
+                                       pScreen->width + clipRects[i].y1) ;
+
+                EPHYR_LOG ("x1:%d, y1:%d, x2:%d, y2:%d\n",
+                           clipRects[i].x1, clipRects[i].y1,
+                           clipRects[i].x2, clipRects[i].y2) ;
+            }
+        } else {
+            rep.numClipRects = 0;
+        }
+    } else {
+        EPHYR_LOG ("got zero host gl drawable clipping rects\n") ;
+    }
+    rep.length += sizeof(drm_clip_rect_t) * rep.numClipRects;
+    backClipRects = clipRects ;
+    rep.numBackClipRects = rep.numClipRects ;
+    if (rep.numBackClipRects)
+        rep.length += sizeof(drm_clip_rect_t) * rep.numBackClipRects;
+    EPHYR_LOG ("num host clip rects:%d\n", (int)rep.numClipRects) ;
+    EPHYR_LOG ("num host back clip rects:%d\n", (int)rep.numBackClipRects) ;
+
+    rep.length = bytes_to_int32(rep.length);
+
+    WriteToClient(client, sizeof(xXF86DRIGetDrawableInfoReply), (char *)&rep);
+
+    if (rep.numClipRects) {
+        WriteToClient(client,
+                      sizeof(drm_clip_rect_t) * rep.numClipRects,
+                      (char *)clipRects);
+    }
+
+    if (rep.numBackClipRects) {
+        WriteToClient(client,
+                      sizeof(drm_clip_rect_t) * rep.numBackClipRects,
+                      (char *)backClipRects);
+    }
+    free(clipRects);
+    clipRects = NULL ;
+
+    EPHYR_LOG ("leave\n") ;
+
+    return Success;
+}
+
+static int
+ProcXF86DRIGetDeviceInfo (register ClientPtr client)
+{
+    xXF86DRIGetDeviceInfoReply	rep;
+    drm_handle_t hFrameBuffer;
+    void *pDevPrivate;
+    REQUEST(xXF86DRIGetDeviceInfoReq);
+    REQUEST_SIZE_MATCH(xXF86DRIGetDeviceInfoReq);
+
+    EPHYR_LOG ("enter\n") ;
+    if (stuff->screen >= screenInfo.numScreens) {
+        client->errorValue = stuff->screen;
+        return BadValue;
+    }
+
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+
+    if (!ephyrDRIGetDeviceInfo (stuff->screen,
+                &hFrameBuffer,
+                (int*)&rep.framebufferOrigin,
+                (int*)&rep.framebufferSize,
+                (int*)&rep.framebufferStride,
+                (int*)&rep.devPrivateSize,
+                &pDevPrivate)) {
+        return BadValue;
+    }
+
+    rep.hFrameBufferLow  = (CARD32)(hFrameBuffer & 0xffffffff);
+#if defined(LONG64) && !defined(__linux__)
+    rep.hFrameBufferHigh = (CARD32)(hFrameBuffer >> 32);
+#else
+    rep.hFrameBufferHigh = 0;
+#endif
+
+    rep.length = 0;
+    if (rep.devPrivateSize) {
+        rep.length = bytes_to_int32(SIZEOF(xXF86DRIGetDeviceInfoReply) -
+                SIZEOF(xGenericReply) +
+                pad_to_int32(rep.devPrivateSize));
+    }
+
+    WriteToClient(client, sizeof(xXF86DRIGetDeviceInfoReply), (char *)&rep);
+    if (rep.length) {
+        WriteToClient(client, rep.devPrivateSize, (char *)pDevPrivate);
+    }
+    EPHYR_LOG ("leave\n") ;
+    return Success;
+}
+
+static int
+ProcXF86DRIDispatch (register ClientPtr	client)
+{
+    REQUEST(xReq);
+    EPHYR_LOG ("enter\n") ;
+
+    switch (stuff->data)
+    {
+        case X_XF86DRIQueryVersion: {
+                EPHYR_LOG ("leave\n") ;
+                return ProcXF86DRIQueryVersion(client);
+        }
+        case X_XF86DRIQueryDirectRenderingCapable: {
+                EPHYR_LOG ("leave\n") ;
+                return ProcXF86DRIQueryDirectRenderingCapable(client);
+        }
+    }
+
+    if (!LocalClient(client))
+        return DRIErrorBase + XF86DRIClientNotLocal;
+
+    switch (stuff->data)
+    {
+        case X_XF86DRIOpenConnection: {
+            EPHYR_LOG ("leave\n") ;
+            return ProcXF86DRIOpenConnection(client);
+        }
+        case X_XF86DRICloseConnection: {
+            EPHYR_LOG ("leave\n") ;
+            return ProcXF86DRICloseConnection(client);
+        }
+        case X_XF86DRIGetClientDriverName: {
+            EPHYR_LOG ("leave\n") ;
+            return ProcXF86DRIGetClientDriverName(client);
+        }
+        case X_XF86DRICreateContext: {
+            EPHYR_LOG ("leave\n") ;
+            return ProcXF86DRICreateContext(client);
+        }
+        case X_XF86DRIDestroyContext: {
+            EPHYR_LOG ("leave\n") ;
+            return ProcXF86DRIDestroyContext(client);
+        }
+        case X_XF86DRICreateDrawable: {
+            EPHYR_LOG ("leave\n") ;
+            return ProcXF86DRICreateDrawable(client);
+        }
+        case X_XF86DRIDestroyDrawable: {
+            EPHYR_LOG ("leave\n") ;
+            return ProcXF86DRIDestroyDrawable(client);
+        }
+        case X_XF86DRIGetDrawableInfo: {
+            EPHYR_LOG ("leave\n") ;
+            return ProcXF86DRIGetDrawableInfo(client);
+        }
+        case X_XF86DRIGetDeviceInfo: {
+            EPHYR_LOG ("leave\n") ;
+            return ProcXF86DRIGetDeviceInfo(client);
+        }
+        case X_XF86DRIAuthConnection: {
+            EPHYR_LOG ("leave\n") ;
+            return ProcXF86DRIAuthConnection(client);
+        }
+            /* {Open,Close}FullScreen are deprecated now */
+        default: {
+            EPHYR_LOG ("leave\n") ;
+            return BadRequest;
+        }
+    }
+}
+
+static int
+SProcXF86DRIQueryVersion (register ClientPtr	client)
+{
+    register int n;
+    REQUEST(xXF86DRIQueryVersionReq);
+    swaps(&stuff->length, n);
+    return ProcXF86DRIQueryVersion(client);
+}
+
+static int
+SProcXF86DRIQueryDirectRenderingCapable (register ClientPtr client)
+{
+    register int n;
+    REQUEST(xXF86DRIQueryDirectRenderingCapableReq);
+    swaps(&stuff->length, n);
+    swapl(&stuff->screen, n);
+    return ProcXF86DRIQueryDirectRenderingCapable(client);
+}
+
+static int
+SProcXF86DRIDispatch (register ClientPtr client)
+{
+    REQUEST(xReq);
+
+    EPHYR_LOG ("enter\n") ;
+    /*
+     * Only local clients are allowed DRI access, but remote clients still need
+     * these requests to find out cleanly.
+     */
+    switch (stuff->data)
+    {
+        case X_XF86DRIQueryVersion: {
+            EPHYR_LOG ("leave\n") ;
+            return SProcXF86DRIQueryVersion(client);
+        }
+        case X_XF86DRIQueryDirectRenderingCapable: {
+            EPHYR_LOG ("leave\n") ;
+            return SProcXF86DRIQueryDirectRenderingCapable(client);
+        }
+        default: {
+            EPHYR_LOG ("leave\n") ;
+            return DRIErrorBase + XF86DRIClientNotLocal;
+        }
+    }
+}
+
+Bool
+ephyrDRIExtensionInit (ScreenPtr a_screen)
+{
+    Bool is_ok=FALSE ;
+    ExtensionEntry* extEntry=NULL;
+    EphyrDRIScreenPrivPtr screen_priv=NULL ;
+
+    EPHYR_LOG ("enter\n") ;
+    if (!hostx_has_dri ()) {
+        EPHYR_LOG ("host does not have DRI extension\n") ;
+        goto out ;
+    }
+    EPHYR_LOG ("host X does have DRI extension\n") ;
+    if (!hostx_has_xshape ()) {
+        EPHYR_LOG ("host does not have XShape extension\n") ;
+        goto out ;
+    }
+    EPHYR_LOG ("host X does have XShape extension\n") ;
+
+#ifdef XF86DRI_EVENTS
+    EventType = CreateNewResourceType (XF86DRIFreeEvents, "DRIEvents");
+    if (!EventType) {
+        EPHYR_LOG_ERROR ("failed to register DRI event resource type\n") ;
+        goto out ;
+    }
+#endif
+
+    if ((extEntry = AddExtension(XF86DRINAME,
+				 XF86DRINumberEvents,
+				 XF86DRINumberErrors,
+				 ProcXF86DRIDispatch,
+				 SProcXF86DRIDispatch,
+				 NULL,
+				 StandardMinorOpcode))) {
+	DRIReqCode = (unsigned char)extEntry->base;
+	DRIErrorBase = extEntry->errorBase;
+    } else {
+        EPHYR_LOG_ERROR ("failed to register DRI extension\n") ;
+        goto out ;
+    }
+    if (!dixRegisterPrivateKey(&ephyrDRIScreenKeyRec, PRIVATE_SCREEN, 0))
+        goto out ;
+    if (!dixRegisterPrivateKey(&ephyrDRIWindowKeyRec, PRIVATE_WINDOW, 0))
+        goto out ;
+    screen_priv = calloc(1, sizeof (EphyrDRIScreenPrivRec)) ;
+    if (!screen_priv) {
+        EPHYR_LOG_ERROR ("failed to allocate screen_priv\n") ;
+        goto out ;
+    }
+    dixSetPrivate(&a_screen->devPrivates, ephyrDRIScreenKey, screen_priv);
+
+    if (!ephyrDRIScreenInit (a_screen)) {
+        EPHYR_LOG_ERROR ("ephyrDRIScreenInit() failed\n") ;
+        goto out ;
+    }
+    EphyrMirrorHostVisuals (a_screen) ;
+    is_ok=TRUE ;
+out:
+    EPHYR_LOG ("leave\n") ;
+    return is_ok ;
+}