svn merge ^/branches/released .

2 files changed, 3317 insertions, 3292 deletions

diff --git a/xorg-server/glx/glxcmds.c b/xorg-server/glx/glxcmds.c
index c14533805..dfe345c7f 100644
--- a/xorg-server/glx/glxcmds.c
+++ b/xorg-server/glx/glxcmds.c
@@ -1,2372 +1,2391 @@
-/*
- * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
- * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice including the dates of first publication and
- * either this permission notice or a reference to
- * http://oss.sgi.com/projects/FreeB/
- * shall be included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
- * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- * Except as contained in this notice, the name of Silicon Graphics, Inc.
- * shall not be used in advertising or otherwise to promote the sale, use or
- * other dealings in this Software without prior written authorization from
- * Silicon Graphics, Inc.
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#else
-
-#include "glheader.h"
-
-#endif
-
-#include <string.h>
-#include <assert.h>
-
-#include "glxserver.h"
-#include <GL/glxtokens.h>
-#include <unpack.h>
-#include <pixmapstr.h>
-#include <windowstr.h>
-#include "glxutil.h"
-#include "glxext.h"
-#include "glapitable.h"
-#include "glapi.h"
-#include "glthread.h"
-#include "dispatch.h"
-#include "indirect_dispatch.h"
-#include "indirect_table.h"
-#include "indirect_util.h"
-
-static int
-validGlxScreen(ClientPtr client, int screen, __GLXscreen **pGlxScreen, int *err)
-{
-    /*
-    ** Check if screen exists.
-    */
-    if (screen < 0 || screen >= screenInfo.numScreens) {
-	client->errorValue = screen;
-	*err = BadValue;
-	return FALSE;
-    }
-    *pGlxScreen = glxGetScreen(screenInfo.screens[screen]);
-
-    return TRUE;
-}
-
-static int
-validGlxFBConfig(ClientPtr client, __GLXscreen *pGlxScreen, XID id,
-		 __GLXconfig **config, int *err)
-{
-    __GLXconfig *m;
-
-    for (m = pGlxScreen->fbconfigs; m != NULL; m = m->next)
-	if (m->fbconfigID == id) {
-	    *config = m;
-	    return TRUE;
-	}
-
-    client->errorValue = id;
-    *err = __glXError(GLXBadFBConfig);
-
-    return FALSE;
-}
-
-static int
-validGlxVisual(ClientPtr client, __GLXscreen *pGlxScreen, XID id,
-	       __GLXconfig **config, int *err)
-{
-    int i;
-
-    for (i = 0; i < pGlxScreen->numVisuals; i++)
- 	if (pGlxScreen->visuals[i]->visualID == id) {
-	    *config = pGlxScreen->visuals[i];
-	    return TRUE;
-	}
-
-    client->errorValue = id;
-    *err = BadValue;
-
-    return FALSE;
-}
-
-static int
-validGlxFBConfigForWindow(ClientPtr client, __GLXconfig *config,
-			  DrawablePtr pDraw, int *err)
-{
-    ScreenPtr pScreen = pDraw->pScreen;
-    VisualPtr pVisual = NULL;
-    XID vid;
-    int i;
-
-    vid = wVisual((WindowPtr)pDraw);
-    for (i = 0; i < pScreen->numVisuals; i++) {
-	if (pScreen->visuals[i].vid == vid) {
-	    pVisual = &pScreen->visuals[i];
-	    break;
-	}
-    }
-
-    /* FIXME: What exactly should we check here... */
-    if (pVisual->class != glxConvertToXVisualType(config->visualType) ||
-	!(config->drawableType & GLX_WINDOW_BIT)) {
-	client->errorValue = pDraw->id;
-	*err = BadMatch;
-	return FALSE;
-    }
-
-    return TRUE;
-}
-
-static int
-validGlxContext(ClientPtr client, XID id, int access_mode,
-		struct glx_context **context, int *err)
-{
-    *err = dixLookupResourceByType((pointer *) context, id,
-				   __glXContextRes, client, access_mode);
-    if (*err != Success) {
-	client->errorValue = id;
-	if (*err == BadValue)
-	    *err = __glXError(GLXBadContext);
-	return FALSE;
-    }
-
-    return TRUE;
-}
-
-static int
-validGlxDrawable(ClientPtr client, XID id, int type, int access_mode,
-		 __GLXdrawable **drawable, int *err)
-{
-    int rc;
-
-    rc = dixLookupResourceByType((pointer *) drawable, id,
-				 __glXDrawableRes, client, access_mode);
-    if (rc != Success && rc != BadValue) {
-	*err = rc;
-	client->errorValue = id;
-	return FALSE;
-    }
-
-    /* If the ID of the glx drawable we looked up doesn't match the id
-     * we looked for, it's because we looked it up under the X
-     * drawable ID (see DoCreateGLXDrawable). */
-    if (rc == BadValue ||
-	(*drawable)->drawId != id ||
-	(type != GLX_DRAWABLE_ANY && type != (*drawable)->type)) {
-	client->errorValue = id;
-	switch (type) {
-	case GLX_DRAWABLE_WINDOW:
-	    *err = __glXError(GLXBadWindow);
-	    return FALSE;
-	case GLX_DRAWABLE_PIXMAP:
-	    *err = __glXError(GLXBadPixmap);
-	    return FALSE;
-	case GLX_DRAWABLE_PBUFFER:
-	    *err = __glXError(GLXBadPbuffer);
-	    return FALSE;
-	case GLX_DRAWABLE_ANY:
-	    *err = __glXError(GLXBadDrawable);
-	    return FALSE;
-	}
-    }
-
-    return TRUE;
-}
-
-void
-__glXContextDestroy(struct glx_context *context)
-{
-    __glXFlushContextCache();
-}
-
-static void __glXdirectContextDestroy(struct glx_context *context)
-{
-    __glXContextDestroy(context);
-    free(context);
-}
-
-static struct glx_context *__glXdirectContextCreate(__GLXscreen *screen,
-					      __GLXconfig *modes,
-					      struct glx_context *shareContext)
-{
-    struct glx_context *context;
-
-    context = calloc(1, sizeof (struct glx_context));
-    if (context == NULL)
-	return NULL;
-
-    context->destroy = __glXdirectContextDestroy;
-
-    return context;
-}
-
-void FlushContext(struct glx_context *cx)
-{
-    CALL_Flush( GET_DISPATCH(), () );
-    __GLX_NOTE_FLUSHED_CMDS(cx);
-}
-
-/**
- * Create a GL context with the given properties.  This routine is used
- * to implement \c glXCreateContext, \c glXCreateNewContext, and
- * \c glXCreateContextWithConfigSGIX.  This works becuase of the hack way
- * that GLXFBConfigs are implemented.  Basically, the FBConfigID is the
- * same as the VisualID.
- */
-
-static int
-DoCreateContext(__GLXclientState *cl, GLXContextID gcId,
-		GLXContextID shareList, __GLXconfig *config,
-		__GLXscreen *pGlxScreen, GLboolean isDirect)
-{
-    ClientPtr client = cl->client;
-    struct glx_context *glxc, *shareglxc;
-    int err;
-    
-    LEGAL_NEW_RESOURCE(gcId, client);
-
-    /*
-    ** Find the display list space that we want to share.  
-    **
-    ** NOTE: In a multithreaded X server, we would need to keep a reference
-    ** count for each display list so that if one client detroyed a list that 
-    ** another client was using, the list would not really be freed until it 
-    ** was no longer in use.  Since this sample implementation has no support 
-    ** for multithreaded servers, we don't do this.  
-    */
-    if (shareList == None) {
-	shareglxc = 0;
-    } else {
-	if (!validGlxContext(client, shareList, DixReadAccess,
-			     &shareglxc, &err))
-	    return err;
-
-	if (shareglxc->isDirect) {
-	    /*
-	    ** NOTE: no support for sharing display lists between direct
-	    ** contexts, even if they are in the same address space.
-	    */
-#if 0
-            /* Disabling this code seems to allow shared display lists
-             * and texture objects to work.  We'll leave it disabled for now.
-             */
-	    client->errorValue = shareList;
-	    return BadMatch;
-#endif
-	} else {
-	    /*
-	    ** Create an indirect context regardless of what the client asked
-	    ** for; this way we can share display list space with shareList.
-	    */
-	    isDirect = GL_FALSE;
-	}
-    }
-
-    /*
-    ** Allocate memory for the new context
-    */
-    if (!isDirect)
-	glxc = pGlxScreen->createContext(pGlxScreen, config, shareglxc);
-    else
-	glxc = __glXdirectContextCreate(pGlxScreen, config, shareglxc);
-    if (!glxc) {
-	return BadAlloc;
-    }
-
-    /*
-    ** Initially, setup the part of the context that could be used by
-    ** a GL core that needs windowing information (e.g., Mesa).
-    */
-    glxc->pGlxScreen = pGlxScreen;
-    glxc->config = config;
-
-    /*
-    ** Register this context as a resource.
-    */
-    if (!AddResource(gcId, __glXContextRes, (pointer)glxc)) {
-	(*glxc->destroy)(glxc);
-	client->errorValue = gcId;
-	return BadAlloc;
-    }
-    
-    /*
-    ** Finally, now that everything is working, setup the rest of the
-    ** context.
-    */
-    glxc->id = gcId;
-    glxc->share_id = shareList;
-    glxc->idExists = GL_TRUE;
-    glxc->isCurrent = GL_FALSE;
-    glxc->isDirect = isDirect;
-    glxc->renderMode = GL_RENDER;
-
-    __glXAddToContextList(glxc);
-
-    return Success;
-}
-
-int __glXDisp_CreateContext(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreateContextReq *req = (xGLXCreateContextReq *) pc;
-    __GLXconfig *config;
-    __GLXscreen *pGlxScreen;
-    int err;
-
-    REQUEST_SIZE_MATCH(xGLXCreateContextReq);
-
-    if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err))
-	return err;
-    if (!validGlxVisual(cl->client, pGlxScreen, req->visual, &config, &err))
-	return err;
-
-    return DoCreateContext(cl, req->context, req->shareList,
-			   config, pGlxScreen, req->isDirect);
-}
-
-int __glXDisp_CreateNewContext(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreateNewContextReq *req = (xGLXCreateNewContextReq *) pc;
-    __GLXconfig *config;
-    __GLXscreen *pGlxScreen;
-    int err;
-
-    REQUEST_SIZE_MATCH(xGLXCreateNewContextReq);
-
-    if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err))
-	return err;
-    if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err))
-	return err;
-
-    return DoCreateContext(cl, req->context, req->shareList,
-			   config, pGlxScreen, req->isDirect);
-}
-
-int __glXDisp_CreateContextWithConfigSGIX(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreateContextWithConfigSGIXReq *req = 
-	(xGLXCreateContextWithConfigSGIXReq *) pc;
-    __GLXconfig *config;
-    __GLXscreen *pGlxScreen;
-    int err;
-
-    REQUEST_SIZE_MATCH(xGLXCreateContextWithConfigSGIXReq);
-
-    if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err))
-	return err;
-    if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err))
-	return err;
-
-    return DoCreateContext(cl, req->context, req->shareList,
-			   config, pGlxScreen, req->isDirect);
-}
-int __glXDisp_DestroyContext(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXDestroyContextReq *req = (xGLXDestroyContextReq *) pc;
-    struct glx_context *glxc;
-    int err;
-
-    REQUEST_SIZE_MATCH(xGLXDestroyContextReq);
-
-    if (!validGlxContext(cl->client, req->context, DixDestroyAccess,
-			 &glxc, &err))
-	    return err;
-
-    FreeResourceByType(req->context, __glXContextRes, FALSE);
-    return Success;
-}
-
-/*****************************************************************************/
-
-/*
-** For each client, the server keeps a table of all the contexts that are
-** current for that client (each thread of a client may have its own current
-** context).  These routines add, change, and lookup contexts in the table.
-*/
-
-/*
-** Add a current context, and return the tag that will be used to refer to it.
-*/
-static int AddCurrentContext(__GLXclientState *cl, struct glx_context *glxc)
-{
-    int i;
-    int num = cl->numCurrentContexts;
-    struct glx_context **table = cl->currentContexts;
-
-    if (!glxc) return -1;
-    
-    /*
-    ** Try to find an empty slot and use it.
-    */
-    for (i=0; i < num; i++) {
-	if (!table[i]) {
-	    table[i] = glxc;
-	    return i+1;
-	}
-    }
-    /*
-    ** Didn't find a free slot, so we'll have to grow the table.
-    */
-    if (!num) {
-	table = (struct glx_context **) malloc(sizeof(struct glx_context *));
-    } else {
-	table = (struct glx_context **) realloc(table,
-					   (num+1)*sizeof(struct glx_context *));
-    }
-    table[num] = glxc;
-    cl->currentContexts = table;
-    cl->numCurrentContexts++;
-    return num+1;
-}
-
-/*
-** Given a tag, change the current context for the corresponding entry.
-*/
-static void ChangeCurrentContext(__GLXclientState *cl, struct glx_context *glxc,
-				GLXContextTag tag)
-{
-    struct glx_context **table = cl->currentContexts;
-    table[tag-1] = glxc;
-}
-
-/*
-** For this implementation we have chosen to simply use the index of the
-** context's entry in the table as the context tag.  A tag must be greater
-** than 0.
-*/
-struct glx_context *__glXLookupContextByTag(__GLXclientState *cl, GLXContextTag tag)
-{
-    int num = cl->numCurrentContexts;
-
-    if (tag < 1 || tag > num) {
-	return 0;
-    } else {
-	return cl->currentContexts[tag-1];
-    }
-}
-
-/*****************************************************************************/
-
-static void StopUsingContext(struct glx_context *glxc)
-{
-    if (glxc) {
-	if (glxc == __glXLastContext) {
-	    /* Tell server GL library */
-	    __glXLastContext = 0;
-	}
-	glxc->isCurrent = GL_FALSE;
-	if (!glxc->idExists) {
-	    __glXFreeContext(glxc);
-	}
-    }
-}
-
-static void StartUsingContext(__GLXclientState *cl, struct glx_context *glxc)
-{
-    glxc->isCurrent = GL_TRUE;
-    __glXLastContext = glxc;	
-}
-
-/**
- * This is a helper function to handle the legacy (pre GLX 1.3) cases
- * where passing an X window to glXMakeCurrent is valid.  Given a
- * resource ID, look up the GLX drawable if available, otherwise, make
- * sure it's an X window and create a GLX drawable one the fly.
- */
-static __GLXdrawable *
-__glXGetDrawable(struct glx_context *glxc, GLXDrawable drawId, ClientPtr client,
-		 int *error)
-{
-    DrawablePtr pDraw;
-    __GLXdrawable *pGlxDraw;
-    int rc;
-
-    if (validGlxDrawable(client, drawId, GLX_DRAWABLE_ANY,
-			 DixWriteAccess, &pGlxDraw, &rc)) {
-	if (glxc != NULL && pGlxDraw->config != glxc->config) {
-	    client->errorValue = drawId;
-	    *error = BadMatch;
-	    return NULL;
-	}
-
-	return pGlxDraw;
-    }
-
-    /* No active context and an unknown drawable, bail. */
-    if (glxc == NULL) {
-	    client->errorValue = drawId;
-	    *error = BadMatch;
-	    return NULL;
-    }
-
-    /* The drawId wasn't a GLX drawable.  Make sure it's a window and
-     * create a GLXWindow for it.  Check that the drawable screen
-     * matches the context screen and that the context fbconfig is
-     * compatible with the window visual. */
-
-    rc = dixLookupDrawable(&pDraw, drawId, client, 0, DixGetAttrAccess);
-    if (rc != Success || pDraw->type != DRAWABLE_WINDOW) {
-	client->errorValue = drawId;
-	*error = __glXError(GLXBadDrawable);
-	return NULL;
-    }
-
-    if (!glxc || pDraw->pScreen != glxc->pGlxScreen->pScreen) {
-	client->errorValue = pDraw->pScreen->myNum;
-	*error = BadMatch;
-	return NULL;
-    }
-
-    if (!validGlxFBConfigForWindow(client, glxc->config, pDraw, error))
-	return NULL;
-
-    pGlxDraw = glxc->pGlxScreen->createDrawable(client, glxc->pGlxScreen,
-						pDraw, drawId,
-						GLX_DRAWABLE_WINDOW,
-						drawId, glxc->config);
-
-    /* since we are creating the drawablePrivate, drawId should be new */
-    if (!AddResource(drawId, __glXDrawableRes, pGlxDraw)) {
-	pGlxDraw->destroy (pGlxDraw);
-	*error = BadAlloc;
-	return NULL;
-    }
-
-    return pGlxDraw;
-}
-
-/*****************************************************************************/
-/*
-** Make an OpenGL context and drawable current.
-*/
-
-static int
-DoMakeCurrent(__GLXclientState *cl,
-	      GLXDrawable drawId, GLXDrawable readId,
-	      GLXContextID contextId, GLXContextTag tag)
-{
-    ClientPtr client = cl->client;
-    xGLXMakeCurrentReply reply;
-    struct glx_context *glxc, *prevglxc;
-    __GLXdrawable *drawPriv = NULL;
-    __GLXdrawable *readPriv = NULL;
-    int error;
-    GLuint  mask;
-
-    /*
-    ** If one is None and the other isn't, it's a bad match.
-    */
-
-    mask  = (drawId == None)    ? (1 << 0) : 0;
-    mask |= (readId == None)    ? (1 << 1) : 0;
-    mask |= (contextId == None) ? (1 << 2) : 0;
-
-    if ( (mask != 0x00) && (mask != 0x07) ) {
-	return BadMatch;
-    }
-    
-    /*
-    ** Lookup old context.  If we have one, it must be in a usable state.
-    */
-    if (tag != 0) {
-	prevglxc = __glXLookupContextByTag(cl, tag);
-	if (!prevglxc) {
-	    /*
-	    ** Tag for previous context is invalid.
-	    */
-	    return __glXError(GLXBadContextTag);
-	}
-	if (prevglxc->renderMode != GL_RENDER) {
-	    /* Oops.  Not in render mode render. */
-	    client->errorValue = prevglxc->id;
-	    return __glXError(GLXBadContextState);
-	}
-    } else {
-	prevglxc = 0;
-    }
-
-    /*
-    ** Lookup new context.  It must not be current for someone else.
-    */
-    if (contextId != None) {
-	int  status;
-
-	if (!validGlxContext(client, contextId, DixUseAccess, &glxc, &error))
-	    return error;
-	if ((glxc != prevglxc) && glxc->isCurrent) {
-	    /* Context is current to somebody else */
-	    return BadAccess;
-	}
-
-	assert( drawId != None );
-	assert( readId != None );
-
-	drawPriv = __glXGetDrawable(glxc, drawId, client, &status);
-	if (drawPriv == NULL)
-	    return status;
-
-	readPriv = __glXGetDrawable(glxc, readId, client, &status);
-	if (readPriv == NULL)
-	    return status;
-
-    } else {
-	/* Switching to no context.  Ignore new drawable. */
-	glxc = 0;
-	drawPriv = 0;
-	readPriv = 0;
-    }
-
-
-    if (prevglxc) {
-	/*
-	** Flush the previous context if needed.
-	*/
-	if (__GLX_HAS_UNFLUSHED_CMDS(prevglxc)) {
-	    if (__glXForceCurrent(cl, tag, (int *)&error)) {
-		CALL_Flush( GET_DISPATCH(), () );
-		__GLX_NOTE_FLUSHED_CMDS(prevglxc);
-	    } else {
-		return error;
-	    }
-	}
-
-	/*
-	** Make the previous context not current.
-	*/
-	if (!(*prevglxc->loseCurrent)(prevglxc)) {
-	    return __glXError(GLXBadContext);
-	}
-	__glXFlushContextCache();
-	if (!prevglxc->isDirect) {
-	    prevglxc->drawPriv = NULL;
-	    prevglxc->readPriv = NULL;
-	}
-    }
-	
-
-    if ((glxc != 0) && !glxc->isDirect) {
-
-	glxc->drawPriv = drawPriv;
-	glxc->readPriv = readPriv;
-
-	/* make the context current */
-	if (!(*glxc->makeCurrent)(glxc)) {
-	    glxc->drawPriv = NULL;
-	    glxc->readPriv = NULL;
-	    return __glXError(GLXBadContext);
-	}
-
-	glxc->isCurrent = GL_TRUE;
-    }
-
-    if (prevglxc) {
-	ChangeCurrentContext(cl, glxc, tag);
-	StopUsingContext(prevglxc);
-    } else {
-	tag = AddCurrentContext(cl, glxc);
-    }
-
-    if (glxc) {
-	StartUsingContext(cl, glxc);
-	reply.contextTag = tag;
-    } else {
-	reply.contextTag = 0;
-    }
-
-    reply.length = 0;
-    reply.type = X_Reply;
-    reply.sequenceNumber = client->sequence;
-
-    if (client->swapped) {
-	__glXSwapMakeCurrentReply(client, &reply);
-    } else {
-	WriteToClient(client, sz_xGLXMakeCurrentReply, (char *)&reply);
-    }
-    return Success;
-}
-
-int __glXDisp_MakeCurrent(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXMakeCurrentReq *req = (xGLXMakeCurrentReq *) pc;
-
-    REQUEST_SIZE_MATCH(xGLXMakeCurrentReq);
-
-    return DoMakeCurrent( cl, req->drawable, req->drawable,
-			  req->context, req->oldContextTag );
-}
-
-int __glXDisp_MakeContextCurrent(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXMakeContextCurrentReq *req = (xGLXMakeContextCurrentReq *) pc;
-
-    REQUEST_SIZE_MATCH(xGLXMakeContextCurrentReq);
-
-    return DoMakeCurrent( cl, req->drawable, req->readdrawable,
-			  req->context, req->oldContextTag );
-}
-
-int __glXDisp_MakeCurrentReadSGI(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXMakeCurrentReadSGIReq *req = (xGLXMakeCurrentReadSGIReq *) pc;
-
-    REQUEST_SIZE_MATCH(xGLXMakeCurrentReadSGIReq);
-
-    return DoMakeCurrent( cl, req->drawable, req->readable,
-			  req->context, req->oldContextTag );
-}
-
-int __glXDisp_IsDirect(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXIsDirectReq *req = (xGLXIsDirectReq *) pc;
-    xGLXIsDirectReply reply;
-    struct glx_context *glxc;
-    int err;
-
-    REQUEST_SIZE_MATCH(xGLXIsDirectReq);
-
-    if (!validGlxContext(cl->client, req->context, DixReadAccess, &glxc, &err))
-	return err;
-
-    reply.isDirect = glxc->isDirect;
-    reply.length = 0;
-    reply.type = X_Reply;
-    reply.sequenceNumber = client->sequence;
-
-    if (client->swapped) {
-	__glXSwapIsDirectReply(client, &reply);
-    } else {
-	WriteToClient(client, sz_xGLXIsDirectReply, (char *)&reply);
-    }
-
-    return Success;
-}
-
-int __glXDisp_QueryVersion(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXQueryVersionReq *req = (xGLXQueryVersionReq *) pc;
-    xGLXQueryVersionReply reply;
-    GLuint major, minor;
-
-    REQUEST_SIZE_MATCH(xGLXQueryVersionReq);
-
-    major = req->majorVersion;
-    minor = req->minorVersion;
-    (void)major;
-    (void)minor;
-
-    /*
-    ** Server should take into consideration the version numbers sent by the
-    ** client if it wants to work with older clients; however, in this
-    ** implementation the server just returns its version number.
-    */
-    reply.majorVersion = glxMajorVersion;
-    reply.minorVersion = glxMinorVersion;
-    reply.length = 0;
-    reply.type = X_Reply;
-    reply.sequenceNumber = client->sequence;
-
-    if (client->swapped) {
-	__glXSwapQueryVersionReply(client, &reply);
-    } else {
-	WriteToClient(client, sz_xGLXQueryVersionReply, (char *)&reply);
-    }
-    return Success;
-}
-
-int __glXDisp_WaitGL(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXWaitGLReq *req = (xGLXWaitGLReq *)pc;
-    GLXContextTag tag;
-    struct glx_context *glxc = NULL;
-    int error;
-
-    REQUEST_SIZE_MATCH(xGLXWaitGLReq);
-
-    tag = req->contextTag;
-    if (tag) {
-	glxc = __glXLookupContextByTag(cl, tag);
-	if (!glxc)
-	    return __glXError(GLXBadContextTag);
-    
-	if (!__glXForceCurrent(cl, req->contextTag, &error))
-	    return error;
-
-	CALL_Finish( GET_DISPATCH(), () );
-    }
-
-    if (glxc && glxc->drawPriv->waitGL)
-	(*glxc->drawPriv->waitGL)(glxc->drawPriv);
-
-    return Success;
-}
-
-int __glXDisp_WaitX(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXWaitXReq *req = (xGLXWaitXReq *)pc;
-    GLXContextTag tag;
-    struct glx_context *glxc = NULL;
-    int error;
-
-    REQUEST_SIZE_MATCH(xGLXWaitXReq);
-
-    tag = req->contextTag;
-    if (tag) {
-	glxc = __glXLookupContextByTag(cl, tag);
-	if (!glxc)
-	    return __glXError(GLXBadContextTag);
-    
-	if (!__glXForceCurrent(cl, req->contextTag, &error))
-	    return error;
-    }
-
-    if (glxc && glxc->drawPriv->waitX)
-	(*glxc->drawPriv->waitX)(glxc->drawPriv);
-
-    return Success;
-}
-
-int __glXDisp_CopyContext(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCopyContextReq *req = (xGLXCopyContextReq *) pc;
-    GLXContextID source;
-    GLXContextID dest;
-    GLXContextTag tag;
-    unsigned long mask;
-    struct glx_context *src, *dst;
-    int error;
-
-    REQUEST_SIZE_MATCH(xGLXCopyContextReq);
-
-    source = req->source;
-    dest = req->dest;
-    tag = req->contextTag;
-    mask = req->mask;
-    if (!validGlxContext(cl->client, source, DixReadAccess, &src, &error))
-	return error;
-    if (!validGlxContext(cl->client, dest, DixWriteAccess, &dst, &error))
-	return error;
-
-    /*
-    ** They must be in the same address space, and same screen.
-    ** NOTE: no support for direct rendering contexts here.
-    */
-    if (src->isDirect || dst->isDirect ||
-	(src->pGlxScreen != dst->pGlxScreen)) {
-	client->errorValue = source;
-	return BadMatch;
-    }
-
-    /*
-    ** The destination context must not be current for any client.
-    */
-    if (dst->isCurrent) {
-	client->errorValue = dest;
-	return BadAccess;
-    }
-
-    if (tag) {
-	struct glx_context *tagcx = __glXLookupContextByTag(cl, tag);
-	
-	if (!tagcx) {
-	    return __glXError(GLXBadContextTag);
-	}
-	if (tagcx != src) {
-	    /*
-	    ** This would be caused by a faulty implementation of the client
-	    ** library.
-	    */
-	    return BadMatch;
-	}
-	/*
-	** In this case, glXCopyContext is in both GL and X streams, in terms
-	** of sequentiality.
-	*/
-	if (__glXForceCurrent(cl, tag, &error)) {
-	    /*
-	    ** Do whatever is needed to make sure that all preceding requests
-	    ** in both streams are completed before the copy is executed.
-	    */
-	    CALL_Finish( GET_DISPATCH(), () );
-	    __GLX_NOTE_FLUSHED_CMDS(tagcx);
-	} else {
-	    return error;
-	}
-    }
-    /*
-    ** Issue copy.  The only reason for failure is a bad mask.
-    */
-    if (!(*dst->copy)(dst, src, mask)) {
-	client->errorValue = mask;
-	return BadValue;
-    }
-    return Success;
-}
-
-enum {
-    GLX_VIS_CONFIG_UNPAIRED = 18,
-    GLX_VIS_CONFIG_PAIRED = 20
-};
-
-enum {
-    GLX_VIS_CONFIG_TOTAL = GLX_VIS_CONFIG_UNPAIRED + GLX_VIS_CONFIG_PAIRED
-};
-
-int __glXDisp_GetVisualConfigs(__GLXclientState *cl, GLbyte *pc)
-{
-    xGLXGetVisualConfigsReq *req = (xGLXGetVisualConfigsReq *) pc;
-    ClientPtr client = cl->client;
-    xGLXGetVisualConfigsReply reply;
-    __GLXscreen *pGlxScreen;
-    __GLXconfig *modes;
-    CARD32 buf[GLX_VIS_CONFIG_TOTAL];
-    int p, i, err;
-    __GLX_DECLARE_SWAP_VARIABLES;
-    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXGetVisualConfigsReq);
-
-    if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err))
-	return err;
-
-    reply.numVisuals = pGlxScreen->numVisuals;
-    reply.numProps = GLX_VIS_CONFIG_TOTAL;
-    reply.length = (reply.numVisuals * __GLX_SIZE_CARD32 * GLX_VIS_CONFIG_TOTAL) >> 2;
-    reply.type = X_Reply;
-    reply.sequenceNumber = client->sequence;
-
-    if (client->swapped) {
-	__GLX_SWAP_SHORT(&reply.sequenceNumber);
-	__GLX_SWAP_INT(&reply.length);
-	__GLX_SWAP_INT(&reply.numVisuals);
-	__GLX_SWAP_INT(&reply.numProps);
-    }
-
-    WriteToClient(client, sz_xGLXGetVisualConfigsReply, (char *)&reply);
-
-    for (i = 0; i < pGlxScreen->numVisuals; i++) {
-	modes = pGlxScreen->visuals[i];
-
-	p = 0;
-	buf[p++] = modes->visualID;
-	buf[p++] = glxConvertToXVisualType( modes->visualType );
-	buf[p++] = (modes->renderType & GLX_RGBA_BIT) ? GL_TRUE : GL_FALSE;
-
-	buf[p++] = modes->redBits;
-	buf[p++] = modes->greenBits;
-	buf[p++] = modes->blueBits;
-	buf[p++] = modes->alphaBits;
-	buf[p++] = modes->accumRedBits;
-	buf[p++] = modes->accumGreenBits;
-	buf[p++] = modes->accumBlueBits;
-	buf[p++] = modes->accumAlphaBits;
-
-	buf[p++] = modes->doubleBufferMode;
-	buf[p++] = modes->stereoMode;
-
-	buf[p++] = modes->rgbBits;
-	buf[p++] = modes->depthBits;
-	buf[p++] = modes->stencilBits;
-	buf[p++] = modes->numAuxBuffers;
-	buf[p++] = modes->level;
-
-	assert(p == GLX_VIS_CONFIG_UNPAIRED);
-	/* 
-	** Add token/value pairs for extensions.
-	*/
-	buf[p++] = GLX_VISUAL_CAVEAT_EXT;
-	buf[p++] = modes->visualRating;
-	buf[p++] = GLX_TRANSPARENT_TYPE;
-	buf[p++] = modes->transparentPixel;
-	buf[p++] = GLX_TRANSPARENT_RED_VALUE;
-	buf[p++] = modes->transparentRed;
-	buf[p++] = GLX_TRANSPARENT_GREEN_VALUE;
-	buf[p++] = modes->transparentGreen;
-	buf[p++] = GLX_TRANSPARENT_BLUE_VALUE;
-	buf[p++] = modes->transparentBlue;
-	buf[p++] = GLX_TRANSPARENT_ALPHA_VALUE;
-	buf[p++] = modes->transparentAlpha;
-	buf[p++] = GLX_TRANSPARENT_INDEX_VALUE;
-	buf[p++] = modes->transparentIndex;
-	buf[p++] = GLX_SAMPLES_SGIS;
-	buf[p++] = modes->samples;
-	buf[p++] = GLX_SAMPLE_BUFFERS_SGIS;
-	buf[p++] = modes->sampleBuffers;
-	buf[p++] = 0; /* copy over visualSelectGroup (GLX_VISUAL_SELECT_GROUP_SGIX)? */
-	buf[p++] = 0;
-
-	assert(p == GLX_VIS_CONFIG_TOTAL);
-	if (client->swapped) {
-	    __GLX_SWAP_INT_ARRAY(buf, p);
-	}
-	WriteToClient(client, __GLX_SIZE_CARD32 * p, (char *)buf);
-    }
-    return Success;
-}
-
-#define __GLX_TOTAL_FBCONFIG_ATTRIBS (36)
-#define __GLX_FBCONFIG_ATTRIBS_LENGTH (__GLX_TOTAL_FBCONFIG_ATTRIBS * 2)
-/**
- * Send the set of GLXFBConfigs to the client.  There is not currently
- * and interface into the driver on the server-side to get GLXFBConfigs,
- * so we "invent" some based on the \c __GLXvisualConfig structures that
- * the driver does supply.
- * 
- * The reply format for both \c glXGetFBConfigs and \c glXGetFBConfigsSGIX
- * is the same, so this routine pulls double duty.
- */
-
-static int
-DoGetFBConfigs(__GLXclientState *cl, unsigned screen)
-{
-    ClientPtr client = cl->client;
-    xGLXGetFBConfigsReply reply;
-    __GLXscreen *pGlxScreen;
-    CARD32 buf[__GLX_FBCONFIG_ATTRIBS_LENGTH];
-    int p, err;
-    __GLXconfig *modes;
-    __GLX_DECLARE_SWAP_VARIABLES;
-    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
-
-    if (!validGlxScreen(cl->client, screen, &pGlxScreen, &err))
-	return err;
-
-    reply.numFBConfigs = pGlxScreen->numFBConfigs;
-    reply.numAttribs = __GLX_TOTAL_FBCONFIG_ATTRIBS;
-    reply.length = (__GLX_FBCONFIG_ATTRIBS_LENGTH * reply.numFBConfigs);
-    reply.type = X_Reply;
-    reply.sequenceNumber = client->sequence;
-
-    if (client->swapped) {
-	__GLX_SWAP_SHORT(&reply.sequenceNumber);
-	__GLX_SWAP_INT(&reply.length);
-	__GLX_SWAP_INT(&reply.numFBConfigs);
-	__GLX_SWAP_INT(&reply.numAttribs);
-    }
-
-    WriteToClient(client, sz_xGLXGetFBConfigsReply, (char *)&reply);
-
-    for (modes = pGlxScreen->fbconfigs; modes != NULL; modes = modes->next) {
-	p = 0;
-
-#define WRITE_PAIR(tag,value) \
-    do { buf[p++] = tag ; buf[p++] = value ; } while( 0 )
-
-	WRITE_PAIR( GLX_VISUAL_ID,        modes->visualID );
-	WRITE_PAIR( GLX_FBCONFIG_ID,      modes->fbconfigID );
-	WRITE_PAIR( GLX_X_RENDERABLE,     GL_TRUE );
-
-	WRITE_PAIR( GLX_RGBA,
-		    (modes->renderType & GLX_RGBA_BIT) ? GL_TRUE : GL_FALSE );
-	WRITE_PAIR( GLX_RENDER_TYPE,      modes->renderType );
-	WRITE_PAIR( GLX_DOUBLEBUFFER,     modes->doubleBufferMode );
-	WRITE_PAIR( GLX_STEREO,           modes->stereoMode );
-
-	WRITE_PAIR( GLX_BUFFER_SIZE,      modes->rgbBits );
-	WRITE_PAIR( GLX_LEVEL,            modes->level );
-	WRITE_PAIR( GLX_AUX_BUFFERS,      modes->numAuxBuffers );
-	WRITE_PAIR( GLX_RED_SIZE,         modes->redBits );
-	WRITE_PAIR( GLX_GREEN_SIZE,       modes->greenBits );
-	WRITE_PAIR( GLX_BLUE_SIZE,        modes->blueBits );
-	WRITE_PAIR( GLX_ALPHA_SIZE,       modes->alphaBits );
-	WRITE_PAIR( GLX_ACCUM_RED_SIZE,   modes->accumRedBits );
-	WRITE_PAIR( GLX_ACCUM_GREEN_SIZE, modes->accumGreenBits );
-	WRITE_PAIR( GLX_ACCUM_BLUE_SIZE,  modes->accumBlueBits );
-	WRITE_PAIR( GLX_ACCUM_ALPHA_SIZE, modes->accumAlphaBits );
-	WRITE_PAIR( GLX_DEPTH_SIZE,       modes->depthBits );
-	WRITE_PAIR( GLX_STENCIL_SIZE,     modes->stencilBits );
-	WRITE_PAIR( GLX_X_VISUAL_TYPE,    modes->visualType );
-	WRITE_PAIR( GLX_CONFIG_CAVEAT, modes->visualRating );
-	WRITE_PAIR( GLX_TRANSPARENT_TYPE, modes->transparentPixel );
-	WRITE_PAIR( GLX_TRANSPARENT_RED_VALUE, modes->transparentRed );
-	WRITE_PAIR( GLX_TRANSPARENT_GREEN_VALUE, modes->transparentGreen );
-	WRITE_PAIR( GLX_TRANSPARENT_BLUE_VALUE, modes->transparentBlue );
-	WRITE_PAIR( GLX_TRANSPARENT_ALPHA_VALUE, modes->transparentAlpha );
-	WRITE_PAIR( GLX_TRANSPARENT_INDEX_VALUE, modes->transparentIndex );
-	WRITE_PAIR( GLX_SWAP_METHOD_OML, modes->swapMethod );
-	WRITE_PAIR( GLX_SAMPLES_SGIS, modes->samples );
-	WRITE_PAIR( GLX_SAMPLE_BUFFERS_SGIS, modes->sampleBuffers );
-	/* GLX_VISUAL_SELECT_GROUP_SGIX ? */
-	WRITE_PAIR( GLX_DRAWABLE_TYPE, modes->drawableType );
-	WRITE_PAIR( GLX_BIND_TO_TEXTURE_RGB_EXT, modes->bindToTextureRgb );
-	WRITE_PAIR( GLX_BIND_TO_TEXTURE_RGBA_EXT, modes->bindToTextureRgba );
-	WRITE_PAIR( GLX_BIND_TO_MIPMAP_TEXTURE_EXT, modes->bindToMipmapTexture );
-	WRITE_PAIR( GLX_BIND_TO_TEXTURE_TARGETS_EXT, modes->bindToTextureTargets );
-
-	if (client->swapped) {
-	    __GLX_SWAP_INT_ARRAY(buf, __GLX_FBCONFIG_ATTRIBS_LENGTH);
-	}
-	WriteToClient(client, __GLX_SIZE_CARD32 * __GLX_FBCONFIG_ATTRIBS_LENGTH,
-		      (char *)buf);
-    }
-    return Success;
-}
-
-
-int __glXDisp_GetFBConfigs(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXGetFBConfigsReq *req = (xGLXGetFBConfigsReq *) pc;
-    REQUEST_SIZE_MATCH(xGLXGetFBConfigsReq);
-    return DoGetFBConfigs(cl, req->screen);
-}
-
-int __glXDisp_GetFBConfigsSGIX(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXGetFBConfigsSGIXReq *req = (xGLXGetFBConfigsSGIXReq *) pc;
-    REQUEST_SIZE_MATCH(xGLXGetFBConfigsSGIXReq);
-    return DoGetFBConfigs(cl, req->screen);
-}
-
-GLboolean
-__glXDrawableInit(__GLXdrawable *drawable,
-		  __GLXscreen *screen, DrawablePtr pDraw, int type,
-		  XID drawId, __GLXconfig *config)
-{
-    drawable->pDraw = pDraw;
-    drawable->type = type;
-    drawable->drawId = drawId;
-    drawable->config = config;
-    drawable->eventMask = 0;
-
-    return GL_TRUE;
-}
-
-void
-__glXDrawableRelease(__GLXdrawable *drawable)
-{
-}
-
-static int 
-DoCreateGLXDrawable(ClientPtr client, __GLXscreen *pGlxScreen,
-		    __GLXconfig *config, DrawablePtr pDraw, XID drawableId,
-		    XID glxDrawableId, int type)
-{
-    __GLXdrawable *pGlxDraw;
-
-    if (pGlxScreen->pScreen != pDraw->pScreen)
-	return BadMatch;
-
-    pGlxDraw = pGlxScreen->createDrawable(client, pGlxScreen, pDraw,
-					  drawableId, type,
-					  glxDrawableId, config);
-    if (pGlxDraw == NULL)
-	return BadAlloc;
-
-    if (!AddResource(glxDrawableId, __glXDrawableRes, pGlxDraw)) {
-	pGlxDraw->destroy (pGlxDraw);
-	return BadAlloc;
-    }
-
-    /* Add the glx drawable under the XID of the underlying X drawable
-     * too.  That way we'll get a callback in DrawableGone and can
-     * clean up properly when the drawable is destroyed. */
-    if (drawableId != glxDrawableId &&
-	!AddResource(pDraw->id, __glXDrawableRes, pGlxDraw)) {
-	pGlxDraw->destroy (pGlxDraw);
-	return BadAlloc;
-    }
-
-    return Success;
-}
-
-static int
-DoCreateGLXPixmap(ClientPtr client, __GLXscreen *pGlxScreen, __GLXconfig *config,
-		  XID drawableId, XID glxDrawableId)
-{
-    DrawablePtr pDraw;
-    int err;
-
-    LEGAL_NEW_RESOURCE(glxDrawableId, client);
-
-    err = dixLookupDrawable(&pDraw, drawableId, client, 0, DixAddAccess);
-    if (err != Success) {
-	client->errorValue = drawableId;
-	return err;
-    }
-    if (pDraw->type != DRAWABLE_PIXMAP) {
-	client->errorValue = drawableId;
-	return BadPixmap;
-    }
-
-    err = DoCreateGLXDrawable(client, pGlxScreen, config, pDraw, drawableId,
-			      glxDrawableId, GLX_DRAWABLE_PIXMAP);
-
-    return err;
-}
-
-static void
-determineTextureTarget(ClientPtr client, XID glxDrawableID,
-		       CARD32 *attribs, CARD32 numAttribs)
-{
-    GLenum target = 0;
-    GLenum format = 0;
-    int i, err;
-    __GLXdrawable *pGlxDraw;
-
-    if (!validGlxDrawable(client, glxDrawableID, GLX_DRAWABLE_PIXMAP,
-			  DixWriteAccess, &pGlxDraw, &err))
-	/* We just added it in CreatePixmap, so we should never get here. */
-	return;
-
-    for (i = 0; i < numAttribs; i++) {
-	if (attribs[2 * i] == GLX_TEXTURE_TARGET_EXT) {
-	    switch (attribs[2 * i + 1]) {
-	    case GLX_TEXTURE_2D_EXT:
-		target = GL_TEXTURE_2D;
-		break;
-	    case GLX_TEXTURE_RECTANGLE_EXT:
-		target = GL_TEXTURE_RECTANGLE_ARB;
-		break;
-	    }
-	}
-
-	if (attribs[2 * i] == GLX_TEXTURE_FORMAT_EXT)
-		format = attribs[2 * i + 1];
-    }
- 
-    if (!target) {
-	int w = pGlxDraw->pDraw->width, h = pGlxDraw->pDraw->height;
-	
-	if (h & (h - 1) || w & (w - 1))
-	    target = GL_TEXTURE_RECTANGLE_ARB;
-	else
-	    target = GL_TEXTURE_2D;
-    }
-
-    pGlxDraw->target = target;
-    pGlxDraw->format = format;
-}
-
-int __glXDisp_CreateGLXPixmap(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreateGLXPixmapReq *req = (xGLXCreateGLXPixmapReq *) pc;
-    __GLXconfig *config;
-    __GLXscreen *pGlxScreen;
-    int err;
-
-    REQUEST_SIZE_MATCH(xGLXCreateGLXPixmapReq);
-
-    if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err))
-	return err;
-    if (!validGlxVisual(cl->client, pGlxScreen, req->visual, &config, &err))
-	return err;
-
-    return DoCreateGLXPixmap(cl->client, pGlxScreen, config,
-			     req->pixmap, req->glxpixmap);
-}
-
-int __glXDisp_CreatePixmap(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreatePixmapReq *req = (xGLXCreatePixmapReq *) pc;
-    __GLXconfig *config;
-    __GLXscreen *pGlxScreen;
-    int err;
-
-    REQUEST_AT_LEAST_SIZE(xGLXCreatePixmapReq);
-    if (req->numAttribs > (UINT32_MAX >> 3)) {
-	client->errorValue = req->numAttribs;
-	return BadValue;
-    }
-    REQUEST_FIXED_SIZE(xGLXCreatePixmapReq, req->numAttribs << 3);
-
-    if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err))
-	return err;
-    if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err))
-	return err;
-
-    err = DoCreateGLXPixmap(cl->client, pGlxScreen, config,
-			    req->pixmap, req->glxpixmap);
-    if (err != Success)
-	return err;
-
-    determineTextureTarget(cl->client, req->glxpixmap,
-			   (CARD32*) (req + 1), req->numAttribs);
-
-    return Success;
-}
-
-int __glXDisp_CreateGLXPixmapWithConfigSGIX(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreateGLXPixmapWithConfigSGIXReq *req = 
-	(xGLXCreateGLXPixmapWithConfigSGIXReq *) pc;
-    __GLXconfig *config;
-    __GLXscreen *pGlxScreen;
-    int err;
-
-    REQUEST_SIZE_MATCH(xGLXCreateGLXPixmapWithConfigSGIXReq);
-
-    if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err))
-	return err;
-    if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err))
-	return err;
-
-    return DoCreateGLXPixmap(cl->client, pGlxScreen,
-			     config, req->pixmap, req->glxpixmap);
-}
-
-
-static int DoDestroyDrawable(__GLXclientState *cl, XID glxdrawable, int type)
-{
-    __GLXdrawable *pGlxDraw;
-    int err;
-
-    if (!validGlxDrawable(cl->client, glxdrawable, type,
-			  DixDestroyAccess, &pGlxDraw, &err))
-	return err;
-
-    FreeResource(glxdrawable, FALSE);
-
-    return Success;
-}
-
-int __glXDisp_DestroyGLXPixmap(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXDestroyGLXPixmapReq *req = (xGLXDestroyGLXPixmapReq *) pc;
-
-    REQUEST_SIZE_MATCH(xGLXDestroyGLXPixmapReq);
-
-    return DoDestroyDrawable(cl, req->glxpixmap, GLX_DRAWABLE_PIXMAP);
-}
-
-int __glXDisp_DestroyPixmap(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXDestroyPixmapReq *req = (xGLXDestroyPixmapReq *) pc;
-
-    REQUEST_SIZE_MATCH(xGLXDestroyPixmapReq);
-
-    return DoDestroyDrawable(cl, req->glxpixmap, GLX_DRAWABLE_PIXMAP);
-}
-
-static int
-DoCreatePbuffer(ClientPtr client, int screenNum, XID fbconfigId,
-		int width, int height, XID glxDrawableId)
-{
-    __GLXconfig	*config;
-    __GLXscreen		*pGlxScreen;
-    PixmapPtr		 pPixmap;
-    int			 err;
-
-    LEGAL_NEW_RESOURCE(glxDrawableId, client);
-
-    if (!validGlxScreen(client, screenNum, &pGlxScreen, &err))
-	return err;
-    if (!validGlxFBConfig(client, pGlxScreen, fbconfigId, &config, &err))
-	return err;
-
-    __glXenterServer(GL_FALSE);
-    pPixmap = (*pGlxScreen->pScreen->CreatePixmap) (pGlxScreen->pScreen,
-						    width, height, config->rgbBits, 0);
-    __glXleaveServer(GL_FALSE);
-
-    /* Assign the pixmap the same id as the pbuffer and add it as a
-     * resource so it and the DRI2 drawable will be reclaimed when the
-     * pbuffer is destroyed. */
-    pPixmap->drawable.id = glxDrawableId;
-    if (!AddResource(pPixmap->drawable.id, RT_PIXMAP, pPixmap))
-	return BadAlloc;
-
-    return DoCreateGLXDrawable(client, pGlxScreen, config, &pPixmap->drawable,
-			       glxDrawableId, glxDrawableId,
-			       GLX_DRAWABLE_PBUFFER);
-}
-
-int __glXDisp_CreatePbuffer(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreatePbufferReq	*req = (xGLXCreatePbufferReq *) pc;
-    CARD32			*attrs;
-    int				 width, height, i;
-
-    REQUEST_AT_LEAST_SIZE(xGLXCreatePbufferReq);
-    if (req->numAttribs > (UINT32_MAX >> 3)) {
-	client->errorValue = req->numAttribs;
-	return BadValue;
-    }
-    REQUEST_FIXED_SIZE(xGLXCreatePbufferReq, req->numAttribs << 3);
-
-    attrs = (CARD32 *) (req + 1);
-    width = 0;
-    height = 0;
-
-    for (i = 0; i < req->numAttribs; i++) {
-	switch (attrs[i * 2]) {
-	case GLX_PBUFFER_WIDTH:
-	    width = attrs[i * 2 + 1];
-	    break;
-	case GLX_PBUFFER_HEIGHT:
-	    height = attrs[i * 2 + 1];
-	    break;
-	case GLX_LARGEST_PBUFFER:
-	case GLX_PRESERVED_CONTENTS:
-	    /* FIXME: huh... */
-	    break;
-	}
-    }
-
-    return DoCreatePbuffer(cl->client, req->screen, req->fbconfig,
-			   width, height, req->pbuffer);
-}
-
-int __glXDisp_CreateGLXPbufferSGIX(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreateGLXPbufferSGIXReq *req = (xGLXCreateGLXPbufferSGIXReq *) pc;
-
-    REQUEST_SIZE_MATCH(xGLXCreateGLXPbufferSGIXReq);
-
-    return DoCreatePbuffer(cl->client, req->screen, req->fbconfig,
-			   req->width, req->height, req->pbuffer);
-}
-
-int __glXDisp_DestroyPbuffer(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXDestroyPbufferReq *req = (xGLXDestroyPbufferReq *) pc;
-
-    REQUEST_SIZE_MATCH(xGLXDestroyPbufferReq);
-
-    return DoDestroyDrawable(cl, req->pbuffer, GLX_DRAWABLE_PBUFFER);
-}
-
-int __glXDisp_DestroyGLXPbufferSGIX(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXDestroyGLXPbufferSGIXReq *req = (xGLXDestroyGLXPbufferSGIXReq *) pc;
-
-    REQUEST_SIZE_MATCH(xGLXDestroyGLXPbufferSGIXReq);
-
-    return DoDestroyDrawable(cl, req->pbuffer, GLX_DRAWABLE_PBUFFER);
-}
-
-static int
-DoChangeDrawableAttributes(ClientPtr client, XID glxdrawable,
-			   int numAttribs, CARD32 *attribs)
-{
-    __GLXdrawable *pGlxDraw;
-    int i, err;
-
-    if (!validGlxDrawable(client, glxdrawable, GLX_DRAWABLE_ANY,
-			  DixSetAttrAccess, &pGlxDraw, &err))
-	return err;
-
-    for (i = 0; i < numAttribs; i++) {
-	switch(attribs[i * 2]) {
-	case GLX_EVENT_MASK:
-	    /* All we do is to record the event mask so we can send it
-	     * back when queried.  We never actually clobber the
-	     * pbuffers, so we never need to send out the event. */
-	    pGlxDraw->eventMask = attribs[i * 2 + 1];
-	    break;
-	}
-    }
-
-    return Success;
-}
-
-int __glXDisp_ChangeDrawableAttributes(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXChangeDrawableAttributesReq *req =
-	(xGLXChangeDrawableAttributesReq *) pc;
-
-    REQUEST_AT_LEAST_SIZE(xGLXChangeDrawableAttributesReq);
-    if (req->numAttribs > (UINT32_MAX >> 3)) {
-	client->errorValue = req->numAttribs;
-	return BadValue;
-    }
-    REQUEST_FIXED_SIZE(xGLXChangeDrawableAttributesReq, req->numAttribs << 3);
-
-    return DoChangeDrawableAttributes(cl->client, req->drawable,
-				      req->numAttribs, (CARD32 *) (req + 1));
-}
-
-int __glXDisp_ChangeDrawableAttributesSGIX(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXChangeDrawableAttributesSGIXReq *req =
-	(xGLXChangeDrawableAttributesSGIXReq *)pc;
-
-    REQUEST_AT_LEAST_SIZE(xGLXChangeDrawableAttributesSGIXReq);
-    if (req->numAttribs > (UINT32_MAX >> 3)) {
-	client->errorValue = req->numAttribs;
-	return BadValue;
-    }
-    REQUEST_FIXED_SIZE(xGLXChangeDrawableAttributesSGIXReq, req->numAttribs << 3);
-
-    return DoChangeDrawableAttributes(cl->client, req->drawable,
-				      req->numAttribs, (CARD32 *) (req + 1));
-}
-
-int __glXDisp_CreateWindow(__GLXclientState *cl, GLbyte *pc)
-{
-    xGLXCreateWindowReq	*req = (xGLXCreateWindowReq *) pc;
-    __GLXconfig	*config;
-    __GLXscreen		*pGlxScreen;
-    ClientPtr		 client = cl->client;
-    DrawablePtr		 pDraw;
-    int			 err;
-
-    REQUEST_AT_LEAST_SIZE(xGLXCreateWindowReq);
-    if (req->numAttribs > (UINT32_MAX >> 3)) {
-	client->errorValue = req->numAttribs;
-	return BadValue;
-    }
-    REQUEST_FIXED_SIZE(xGLXCreateWindowReq, req->numAttribs << 3);
-
-    LEGAL_NEW_RESOURCE(req->glxwindow, client);
-
-    if (!validGlxScreen(client, req->screen, &pGlxScreen, &err))
-	return err;
-    if (!validGlxFBConfig(client, pGlxScreen, req->fbconfig, &config, &err))
-	return err;
-
-    err = dixLookupDrawable(&pDraw, req->window, client, 0, DixAddAccess);
-    if (err != Success || pDraw->type != DRAWABLE_WINDOW) {
-	client->errorValue = req->window;
-	return BadWindow;
-    }
-
-    if (!validGlxFBConfigForWindow(client, config, pDraw, &err))
-	return err;
-
-    return DoCreateGLXDrawable(client, pGlxScreen, config,
-			       pDraw, req->window,
-			       req->glxwindow, GLX_DRAWABLE_WINDOW);
-}
-
-int __glXDisp_DestroyWindow(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXDestroyWindowReq *req = (xGLXDestroyWindowReq *) pc;
-
-    REQUEST_SIZE_MATCH(xGLXDestroyWindowReq);
-
-    return DoDestroyDrawable(cl, req->glxwindow, GLX_DRAWABLE_WINDOW);
-}
-
-
-/*****************************************************************************/
-
-/*
-** NOTE: There is no portable implementation for swap buffers as of
-** this time that is of value.  Consequently, this code must be
-** implemented by somebody other than SGI.
-*/
-int __glXDisp_SwapBuffers(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXSwapBuffersReq *req = (xGLXSwapBuffersReq *) pc;
-    GLXContextTag tag;
-    XID drawId;
-    struct glx_context *glxc = NULL;
-    __GLXdrawable *pGlxDraw;
-    int error;
-
-    REQUEST_SIZE_MATCH(xGLXSwapBuffersReq);
-
-    tag = req->contextTag;
-    drawId = req->drawable;
-    if (tag) {
-	glxc = __glXLookupContextByTag(cl, tag);
-	if (!glxc) {
-	    return __glXError(GLXBadContextTag);
-	}
-	/*
-	** The calling thread is swapping its current drawable.  In this case,
-	** glxSwapBuffers is in both GL and X streams, in terms of
-	** sequentiality.
-	*/
-	if (__glXForceCurrent(cl, tag, &error)) {
-	    /*
-	    ** Do whatever is needed to make sure that all preceding requests
-	    ** in both streams are completed before the swap is executed.
-	    */
-	    CALL_Finish( GET_DISPATCH(), () );
-	    __GLX_NOTE_FLUSHED_CMDS(glxc);
-	} else {
-	    return error;
-	}
-    }
-
-    pGlxDraw = __glXGetDrawable(glxc, drawId, client, &error);
-    if (pGlxDraw == NULL)
-	return error;
-
-    if (pGlxDraw->type == DRAWABLE_WINDOW &&
-	(*pGlxDraw->swapBuffers)(cl->client, pGlxDraw) == GL_FALSE)
-	return __glXError(GLXBadDrawable);
-
-    return Success;
-}
-
-
-static int
-DoQueryContext(__GLXclientState *cl, GLXContextID gcId)
-{
-    ClientPtr client = cl->client;
-    struct glx_context *ctx;
-    xGLXQueryContextInfoEXTReply reply;
-    int nProps;
-    int *sendBuf, *pSendBuf;
-    int nReplyBytes;
-    int err;
-
-    if (!validGlxContext(cl->client, gcId, DixReadAccess, &ctx, &err))
-	return err;
-
-    nProps = 3;
-    reply.length = nProps << 1;
-    reply.type = X_Reply;
-    reply.sequenceNumber = client->sequence;
-    reply.n = nProps;
-
-    nReplyBytes = reply.length << 2;
-    sendBuf = (int *)malloc((size_t)nReplyBytes);
-    if (sendBuf == NULL) {
-	return __glXError(GLXBadContext);	/* XXX: Is this correct? */
-    }
-    pSendBuf = sendBuf;
-    *pSendBuf++ = GLX_SHARE_CONTEXT_EXT;
-    *pSendBuf++ = (int)(ctx->share_id);
-    *pSendBuf++ = GLX_VISUAL_ID_EXT;
-    *pSendBuf++ = (int)(ctx->config->visualID);
-    *pSendBuf++ = GLX_SCREEN_EXT;
-    *pSendBuf++ = (int)(ctx->pGlxScreen->pScreen->myNum);
-
-    if (client->swapped) {
-	__glXSwapQueryContextInfoEXTReply(client, &reply, sendBuf);
-    } else {
-	WriteToClient(client, sz_xGLXQueryContextInfoEXTReply, (char *)&reply);
-	WriteToClient(client, nReplyBytes, (char *)sendBuf);
-    }
-    free((char *)sendBuf);
-
-    return Success;
-}
-
-int __glXDisp_QueryContextInfoEXT(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXQueryContextInfoEXTReq *req = (xGLXQueryContextInfoEXTReq *) pc;
-
-    REQUEST_SIZE_MATCH(xGLXQueryContextInfoEXTReq);
-
-    return DoQueryContext(cl, req->context);
-}
-
-int __glXDisp_QueryContext(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXQueryContextReq *req = (xGLXQueryContextReq *) pc;
-
-    REQUEST_SIZE_MATCH(xGLXQueryContextReq);
-
-    return DoQueryContext(cl, req->context);
-}
-
-int __glXDisp_BindTexImageEXT(__GLXclientState *cl, GLbyte *pc)
-{
-    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
-    ClientPtr		 client = cl->client;
-    struct glx_context	*context;
-    __GLXdrawable	*pGlxDraw;
-    GLXDrawable		 drawId;
-    int			 buffer;
-    int			 error;
-
-    REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 8);
-
-    pc += __GLX_VENDPRIV_HDR_SIZE;
-
-    drawId = *((CARD32 *) (pc));
-    buffer = *((INT32 *)  (pc + 4));
-
-    if (buffer != GLX_FRONT_LEFT_EXT)
-	return __glXError(GLXBadPixmap);
-
-    context = __glXForceCurrent (cl, req->contextTag, &error);
-    if (!context)
-	return error;
-
-    if (!validGlxDrawable(client, drawId, GLX_DRAWABLE_PIXMAP,
-			  DixReadAccess, &pGlxDraw, &error))
-	return error;
-
-    if (!context->textureFromPixmap)
-	return __glXError(GLXUnsupportedPrivateRequest);
-
-    return context->textureFromPixmap->bindTexImage(context,
-						    buffer,
-						    pGlxDraw);
-}
-
-int __glXDisp_ReleaseTexImageEXT(__GLXclientState *cl, GLbyte *pc)
-{
-    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
-    ClientPtr		 client = cl->client;
-    __GLXdrawable	*pGlxDraw;
-    struct glx_context	*context;
-    GLXDrawable		 drawId;
-    int			 buffer;
-    int			 error;
-
-    REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 8);
-
-    pc += __GLX_VENDPRIV_HDR_SIZE;
-
-    drawId = *((CARD32 *) (pc));
-    buffer = *((INT32 *)  (pc + 4));
-    
-    context = __glXForceCurrent (cl, req->contextTag, &error);
-    if (!context)
-	return error;
-
-    if (!validGlxDrawable(client, drawId, GLX_DRAWABLE_PIXMAP,
-			  DixReadAccess, &pGlxDraw, &error))
-	return error;
-
-    if (!context->textureFromPixmap)
-	return __glXError(GLXUnsupportedPrivateRequest);
-
-    return context->textureFromPixmap->releaseTexImage(context,
-						       buffer,
-						       pGlxDraw);
-}
-
-int __glXDisp_CopySubBufferMESA(__GLXclientState *cl, GLbyte *pc)
-{
-    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
-    GLXContextTag         tag = req->contextTag;
-    struct glx_context         *glxc = NULL;
-    __GLXdrawable        *pGlxDraw;
-    ClientPtr		  client = cl->client;
-    GLXDrawable		  drawId;
-    int                   error;
-    int                   x, y, width, height;
-
-    (void) client;
-    (void) req;
-
-    REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 20);
-
-    pc += __GLX_VENDPRIV_HDR_SIZE;
-
-    drawId = *((CARD32 *) (pc));
-    x      = *((INT32 *)  (pc + 4));
-    y      = *((INT32 *)  (pc + 8));
-    width  = *((INT32 *)  (pc + 12));
-    height = *((INT32 *)  (pc + 16));
-
-    if (tag) {
-	glxc = __glXLookupContextByTag(cl, tag);
-	if (!glxc) {
-	    return __glXError(GLXBadContextTag);
-	}
-	/*
-	** The calling thread is swapping its current drawable.  In this case,
-	** glxSwapBuffers is in both GL and X streams, in terms of
-	** sequentiality.
-	*/
-	if (__glXForceCurrent(cl, tag, &error)) {
-	    /*
-	    ** Do whatever is needed to make sure that all preceding requests
-	    ** in both streams are completed before the swap is executed.
-	    */
-	    CALL_Finish( GET_DISPATCH(), () );
-	    __GLX_NOTE_FLUSHED_CMDS(glxc);
-	} else {
-	    return error;
-	}
-    }
-
-    pGlxDraw = __glXGetDrawable(glxc, drawId, client, &error);
-    if (!pGlxDraw)
-	return error;
-
-    if (pGlxDraw == NULL ||
-	pGlxDraw->type != GLX_DRAWABLE_WINDOW ||
-	pGlxDraw->copySubBuffer == NULL)
-	return __glXError(GLXBadDrawable);
-
-    (*pGlxDraw->copySubBuffer)(pGlxDraw, x, y, width, height);
-
-    return Success;
-}
-
-/*
-** Get drawable attributes
-*/
-static int
-DoGetDrawableAttributes(__GLXclientState *cl, XID drawId)
-{
-    ClientPtr client = cl->client;
-    xGLXGetDrawableAttributesReply reply;
-    __GLXdrawable *pGlxDraw;
-    CARD32 attributes[6];
-    int numAttribs, error;
-
-    if (!validGlxDrawable(client, drawId, GLX_DRAWABLE_ANY,
-			  DixGetAttrAccess, &pGlxDraw, &error))
-	return error;
-
-    numAttribs = 3;
-    reply.length = numAttribs << 1;
-    reply.type = X_Reply;
-    reply.sequenceNumber = client->sequence;
-    reply.numAttribs = numAttribs;
-
-    attributes[0] = GLX_TEXTURE_TARGET_EXT;
-    attributes[1] = pGlxDraw->target == GL_TEXTURE_2D ? GLX_TEXTURE_2D_EXT :
-	GLX_TEXTURE_RECTANGLE_EXT;
-    attributes[2] = GLX_Y_INVERTED_EXT;
-    attributes[3] = GL_FALSE;
-    attributes[4] = GLX_EVENT_MASK;
-    attributes[5] = pGlxDraw->eventMask;
-
-    if (client->swapped) {
-	__glXSwapGetDrawableAttributesReply(client, &reply, attributes);
-    } else {
-	WriteToClient(client, sz_xGLXGetDrawableAttributesReply,
-		      (char *)&reply);
-	WriteToClient(client, reply.length * sizeof (CARD32),
-		      (char *)attributes);
-    }
-
-    return Success;
-}
-
-int __glXDisp_GetDrawableAttributes(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXGetDrawableAttributesReq *req = (xGLXGetDrawableAttributesReq *)pc;
-
-    REQUEST_SIZE_MATCH(xGLXGetDrawableAttributesReq);
-
-    return DoGetDrawableAttributes(cl, req->drawable);
-}
-
-int __glXDisp_GetDrawableAttributesSGIX(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXGetDrawableAttributesSGIXReq *req =
-	(xGLXGetDrawableAttributesSGIXReq *)pc;
-    
-    REQUEST_SIZE_MATCH(xGLXGetDrawableAttributesSGIXReq);
-
-    return DoGetDrawableAttributes(cl, req->drawable);
-}
-
-/************************************************************************/
-
-/*
-** Render and Renderlarge are not in the GLX API.  They are used by the GLX
-** client library to send batches of GL rendering commands.
-*/
-
-/*
-** Execute all the drawing commands in a request.
-*/
-int __glXDisp_Render(__GLXclientState *cl, GLbyte *pc)
-{
-    xGLXRenderReq *req;
-    ClientPtr client= cl->client;
-    int left, cmdlen, error;
-    int commandsDone;
-    CARD16 opcode;
-    __GLXrenderHeader *hdr;
-    struct glx_context *glxc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_AT_LEAST_SIZE(xGLXRenderReq);
-
-    req = (xGLXRenderReq *) pc;
-    if (client->swapped) {
-	__GLX_SWAP_SHORT(&req->length);
-	__GLX_SWAP_INT(&req->contextTag);
-    }
-
-    glxc = __glXForceCurrent(cl, req->contextTag, &error);
-    if (!glxc) {
-	return error;
-    }
-
-    commandsDone = 0;
-    pc += sz_xGLXRenderReq;
-    left = (req->length << 2) - sz_xGLXRenderReq;
-    while (left > 0) {
-        __GLXrenderSizeData entry;
-        int extra;
-	__GLXdispatchRenderProcPtr proc;
-	int err;
-
-	if (left < sizeof(__GLXrenderHeader))
-	    return BadLength;
-
-	/*
-	** Verify that the header length and the overall length agree.
-	** Also, each command must be word aligned.
-	*/
-	hdr = (__GLXrenderHeader *) pc;
-	if (client->swapped) {
-	    __GLX_SWAP_SHORT(&hdr->length);
-	    __GLX_SWAP_SHORT(&hdr->opcode);
-	}
-	cmdlen = hdr->length;
-	opcode = hdr->opcode;
-
-	/*
-	** Check for core opcodes and grab entry data.
-	*/
-	err = __glXGetProtocolSizeData(& Render_dispatch_info, opcode, & entry);
-	proc = (__GLXdispatchRenderProcPtr)
-	    __glXGetProtocolDecodeFunction(& Render_dispatch_info,
-					   opcode, client->swapped);
-
-	if ((err < 0) || (proc == NULL)) {
-	    client->errorValue = commandsDone;
-	    return __glXError(GLXBadRenderRequest);
-	}
-
-        if (entry.varsize) {
-            /* variable size command */
-            extra = (*entry.varsize)(pc + __GLX_RENDER_HDR_SIZE,
-				     client->swapped);
-            if (extra < 0) {
-                extra = 0;
-            }
-            if (cmdlen != __GLX_PAD(entry.bytes + extra)) {
-                return BadLength;
-            }
-        } else {
-            /* constant size command */
-            if (cmdlen != __GLX_PAD(entry.bytes)) {
-                return BadLength;
-            }
-        }
-	if (left < cmdlen) {
-	    return BadLength;
-	}
-
-	/*
-	** Skip over the header and execute the command.  We allow the
-	** caller to trash the command memory.  This is useful especially
-	** for things that require double alignment - they can just shift
-	** the data towards lower memory (trashing the header) by 4 bytes
-	** and achieve the required alignment.
-	*/
-	(*proc)(pc + __GLX_RENDER_HDR_SIZE);
-	pc += cmdlen;
-	left -= cmdlen;
-	commandsDone++;
-    }
-    __GLX_NOTE_UNFLUSHED_CMDS(glxc);
-    return Success;
-}
-
-
-/*
-** Execute a large rendering request (one that spans multiple X requests).
-*/
-int __glXDisp_RenderLarge(__GLXclientState *cl, GLbyte *pc)
-{
-    xGLXRenderLargeReq *req;
-    ClientPtr client= cl->client;
-    size_t dataBytes;
-    __GLXrenderLargeHeader *hdr;
-    struct glx_context *glxc;
-    int error;
-    CARD16 opcode;
-    __GLX_DECLARE_SWAP_VARIABLES;
-    
-    req = (xGLXRenderLargeReq *) pc;
-    if (client->swapped) {
-	__GLX_SWAP_SHORT(&req->length);
-	__GLX_SWAP_INT(&req->contextTag);
-	__GLX_SWAP_INT(&req->dataBytes);
-	__GLX_SWAP_SHORT(&req->requestNumber);
-	__GLX_SWAP_SHORT(&req->requestTotal);
-    }
-
-    glxc = __glXForceCurrent(cl, req->contextTag, &error);
-    if (!glxc) {
-	/* Reset in case this isn't 1st request. */
-	__glXResetLargeCommandStatus(cl);
-	return error;
-    }
-    dataBytes = req->dataBytes;
-
-    /*
-    ** Check the request length.
-    */
-    if ((req->length << 2) != __GLX_PAD(dataBytes) + sz_xGLXRenderLargeReq) {
-	client->errorValue = req->length;
-	/* Reset in case this isn't 1st request. */
-	__glXResetLargeCommandStatus(cl);
-	return BadLength;
-    }
-    pc += sz_xGLXRenderLargeReq;
-    
-    if (cl->largeCmdRequestsSoFar == 0) {
-	__GLXrenderSizeData entry;
-	int extra;
-	size_t cmdlen;
-	int err;
-
-	/*
-	** This is the first request of a multi request command.
-	** Make enough space in the buffer, then copy the entire request.
-	*/
-	if (req->requestNumber != 1) {
-	    client->errorValue = req->requestNumber;
-	    return __glXError(GLXBadLargeRequest);
-	}
-
-	hdr = (__GLXrenderLargeHeader *) pc;
-	if (client->swapped) {
-	    __GLX_SWAP_INT(&hdr->length);
-	    __GLX_SWAP_INT(&hdr->opcode);
-	}
-	cmdlen = hdr->length;
-	opcode = hdr->opcode;
-
-	/*
-	** Check for core opcodes and grab entry data.
-	*/
-	err = __glXGetProtocolSizeData(& Render_dispatch_info, opcode, & entry);
-	if (err < 0) {
-	    client->errorValue = opcode;
-	    return __glXError(GLXBadLargeRequest);
-	}
-
-	if (entry.varsize) {
-	    /*
-	    ** If it's a variable-size command (a command whose length must
-	    ** be computed from its parameters), all the parameters needed
-	    ** will be in the 1st request, so it's okay to do this.
-	    */
-	    extra = (*entry.varsize)(pc + __GLX_RENDER_LARGE_HDR_SIZE,
-				     client->swapped);
-	    if (extra < 0) {
-		extra = 0;
-	    }
-	    /* large command's header is 4 bytes longer, so add 4 */
-	    if (cmdlen != __GLX_PAD(entry.bytes + 4 + extra)) {
-		return BadLength;
-	    }
-	} else {
-	    /* constant size command */
-	    if (cmdlen != __GLX_PAD(entry.bytes + 4)) {
-		return BadLength;
-	    }
-	}
-	/*
-	** Make enough space in the buffer, then copy the entire request.
-	*/
-	if (cl->largeCmdBufSize < cmdlen) {
-	    if (!cl->largeCmdBuf) {
-		cl->largeCmdBuf = (GLbyte *) malloc(cmdlen);
-	    } else {
-		cl->largeCmdBuf = (GLbyte *) realloc(cl->largeCmdBuf, cmdlen);
-	    }
-	    if (!cl->largeCmdBuf) {
-		return BadAlloc;
-	    }
-	    cl->largeCmdBufSize = cmdlen;
-	}
-	memcpy(cl->largeCmdBuf, pc, dataBytes);
-
-	cl->largeCmdBytesSoFar = dataBytes;
-	cl->largeCmdBytesTotal = cmdlen;
-	cl->largeCmdRequestsSoFar = 1;
-	cl->largeCmdRequestsTotal = req->requestTotal;
-	return Success;
-	
-    } else {
-	/*
-	** We are receiving subsequent (i.e. not the first) requests of a
-	** multi request command.
-	*/
-
-	/*
-	** Check the request number and the total request count.
-	*/
-	if (req->requestNumber != cl->largeCmdRequestsSoFar + 1) {
-	    client->errorValue = req->requestNumber;
-	    __glXResetLargeCommandStatus(cl);
-	    return __glXError(GLXBadLargeRequest);
-	}
-	if (req->requestTotal != cl->largeCmdRequestsTotal) {
-	    client->errorValue = req->requestTotal;
-	    __glXResetLargeCommandStatus(cl);
-	    return __glXError(GLXBadLargeRequest);
-	}
-
-	/*
-	** Check that we didn't get too much data.
-	*/
-	if ((cl->largeCmdBytesSoFar + dataBytes) > cl->largeCmdBytesTotal) {
-	    client->errorValue = dataBytes;
-	    __glXResetLargeCommandStatus(cl);
-	    return __glXError(GLXBadLargeRequest);
-	}
-	memcpy(cl->largeCmdBuf + cl->largeCmdBytesSoFar, pc, dataBytes);
-	cl->largeCmdBytesSoFar += dataBytes;
-	cl->largeCmdRequestsSoFar++;
-
-	if (req->requestNumber == cl->largeCmdRequestsTotal) {
-	    __GLXdispatchRenderProcPtr proc;
-
-	    /*
-	    ** This is the last request; it must have enough bytes to complete
-	    ** the command.
-	    */
-	    /* NOTE: the two pad macros have been added below; they are needed
-	    ** because the client library pads the total byte count, but not
-	    ** the per-request byte counts.  The Protocol Encoding says the
-	    ** total byte count should not be padded, so a proposal will be 
-	    ** made to the ARB to relax the padding constraint on the total 
-	    ** byte count, thus preserving backward compatibility.  Meanwhile, 
-	    ** the padding done below fixes a bug that did not allow
-	    ** large commands of odd sizes to be accepted by the server.
-	    */
-	    if (__GLX_PAD(cl->largeCmdBytesSoFar) !=
-		__GLX_PAD(cl->largeCmdBytesTotal)) {
-		client->errorValue = dataBytes;
-		__glXResetLargeCommandStatus(cl);
-		return __glXError(GLXBadLargeRequest);
-	    }
-	    hdr = (__GLXrenderLargeHeader *) cl->largeCmdBuf;
-	    /*
-	    ** The opcode and length field in the header had already been
-	    ** swapped when the first request was received.
-	    **
-	    ** Use the opcode to index into the procedure table.
-	    */
-	    opcode = hdr->opcode;
-
-	    proc = (__GLXdispatchRenderProcPtr)
-	      __glXGetProtocolDecodeFunction(& Render_dispatch_info, opcode,
-					     client->swapped);
-	    if (proc == NULL) {
-		client->errorValue = opcode;
-		return __glXError(GLXBadLargeRequest);
-	    }
-
-	    /*
-	    ** Skip over the header and execute the command.
-	    */
-	    (*proc)(cl->largeCmdBuf + __GLX_RENDER_LARGE_HDR_SIZE);
-	    __GLX_NOTE_UNFLUSHED_CMDS(glxc);
-
-	    /*
-	    ** Reset for the next RenderLarge series.
-	    */
-	    __glXResetLargeCommandStatus(cl);
-	} else {
-	    /*
-	    ** This is neither the first nor the last request.
-	    */
-	}
-	return Success;
-    }
-}
-
-/************************************************************************/
-
-/*
-** No support is provided for the vendor-private requests other than
-** allocating the entry points in the dispatch table.
-*/
-
-int __glXDisp_VendorPrivate(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
-    GLint vendorcode = req->vendorCode;
-    __GLXdispatchVendorPrivProcPtr proc;
-
-    REQUEST_AT_LEAST_SIZE(xGLXVendorPrivateReq);
-
-    proc = (__GLXdispatchVendorPrivProcPtr)
-      __glXGetProtocolDecodeFunction(& VendorPriv_dispatch_info,
-				     vendorcode, 0);
-    if (proc != NULL) {
-	(*proc)(cl, (GLbyte*)req);
-	return Success;
-    }
-
-    cl->client->errorValue = req->vendorCode;
-    return __glXError(GLXUnsupportedPrivateRequest);
-}
-
-int __glXDisp_VendorPrivateWithReply(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
-    GLint vendorcode = req->vendorCode;
-    __GLXdispatchVendorPrivProcPtr proc;
-
-    REQUEST_AT_LEAST_SIZE(xGLXVendorPrivateReq);
-
-    proc = (__GLXdispatchVendorPrivProcPtr)
-      __glXGetProtocolDecodeFunction(& VendorPriv_dispatch_info,
-				     vendorcode, 0);
-    if (proc != NULL) {
-	return (*proc)(cl, (GLbyte*)req);
-    }
-
-    cl->client->errorValue = vendorcode;
-    return __glXError(GLXUnsupportedPrivateRequest);
-}
-
-int __glXDisp_QueryExtensionsString(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXQueryExtensionsStringReq *req = (xGLXQueryExtensionsStringReq *) pc;
-    xGLXQueryExtensionsStringReply reply;
-    __GLXscreen *pGlxScreen;
-    size_t n, length;
-    char *buf;
-    int err;
-
-    REQUEST_SIZE_MATCH(xGLXQueryExtensionsStringReq);
-
-    if (!validGlxScreen(client, req->screen, &pGlxScreen, &err))
-	return err;
-
-    n = strlen(pGlxScreen->GLXextensions) + 1;
-    length = __GLX_PAD(n) >> 2;
-    reply.type = X_Reply;
-    reply.sequenceNumber = client->sequence;
-    reply.length = length;
-    reply.n = n;
-
-    /* Allocate buffer to make sure it's a multiple of 4 bytes big.*/
-    buf = (char *) malloc(length << 2);
-    if (buf == NULL)
-        return BadAlloc;
-    memcpy(buf, pGlxScreen->GLXextensions, n);
-
-    if (client->swapped) {
-        glxSwapQueryExtensionsStringReply(client, &reply, buf);
-    } else {
-        WriteToClient(client, sz_xGLXQueryExtensionsStringReply,(char *)&reply);
-        WriteToClient(client, (int)(length << 2), (char *)buf);
-    }
-
-    free(buf);
-    return Success;
-}
-
-int __glXDisp_QueryServerString(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXQueryServerStringReq *req = (xGLXQueryServerStringReq *) pc;
-    xGLXQueryServerStringReply reply;
-    size_t n, length;
-    const char *ptr;
-    char *buf;
-    __GLXscreen *pGlxScreen;
-    int err;
-    char ver_str[16];
-
-    REQUEST_SIZE_MATCH(xGLXQueryServerStringReq);
-
-    if (!validGlxScreen(client, req->screen, &pGlxScreen, &err))
-	return err;
-
-    switch(req->name) {
-	case GLX_VENDOR:
-	    ptr = pGlxScreen->GLXvendor;
-	    break;
-	case GLX_VERSION:
-	    /* Return to the server version rather than the screen version
-	     * to prevent confusion when they do not match.
-	     */
-	    snprintf(ver_str, 16, "%d.%d", glxMajorVersion, glxMinorVersion);
-	    ptr = ver_str;
-	    break;
-	case GLX_EXTENSIONS:
-	    ptr = pGlxScreen->GLXextensions;
-	    break;
-	default:
-	    return BadValue; 
-    }
-
-    n = strlen(ptr) + 1;
-    length = __GLX_PAD(n) >> 2;
-    reply.type = X_Reply;
-    reply.sequenceNumber = client->sequence;
-    reply.length = length;
-    reply.n = n;
-
-    buf = (char *) malloc(length << 2);
-    if (buf == NULL) {
-        return BadAlloc;
-    }
-    memcpy(buf, ptr, n);
-
-    if (client->swapped) {
-        glxSwapQueryServerStringReply(client, &reply, buf);
-    } else {
-        WriteToClient(client, sz_xGLXQueryServerStringReply, (char *)&reply);
-        WriteToClient(client, (int)(length << 2), buf);
-    }
-
-    free(buf);
-    return Success;
-}
-
-int __glXDisp_ClientInfo(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXClientInfoReq *req = (xGLXClientInfoReq *) pc;
-    const char *buf;
-   
-    REQUEST_AT_LEAST_SIZE(xGLXClientInfoReq);
-
-    buf = (const char *)(req+1);
-    if (!memchr(buf, 0, (client->req_len << 2) - sizeof(xGLXClientInfoReq)))
-	return BadLength;
-
-    cl->GLClientmajorVersion = req->major;
-    cl->GLClientminorVersion = req->minor;
-    free(cl->GLClientextensions);
-    cl->GLClientextensions = strdup(buf);
-
-    return Success;
-}
+/*

+ * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)

+ * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice including the dates of first publication and

+ * either this permission notice or a reference to

+ * http://oss.sgi.com/projects/FreeB/

+ * shall be included in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

+ * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF

+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

+ * SOFTWARE.

+ *

+ * Except as contained in this notice, the name of Silicon Graphics, Inc.

+ * shall not be used in advertising or otherwise to promote the sale, use or

+ * other dealings in this Software without prior written authorization from

+ * Silicon Graphics, Inc.

+ */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#else

+

+#include "glheader.h"

+

+#endif

+

+#include <string.h>

+#include <assert.h>

+

+#include "glxserver.h"

+#include <GL/glxtokens.h>

+#include <unpack.h>

+#include <pixmapstr.h>

+#include <windowstr.h>

+#include "glxutil.h"

+#include "glxext.h"

+#include "glapitable.h"

+#include "glapi.h"

+#include "glthread.h"

+#include "dispatch.h"

+#include "indirect_dispatch.h"

+#include "indirect_table.h"

+#include "indirect_util.h"

+

+static int

+validGlxScreen(ClientPtr client, int screen, __GLXscreen **pGlxScreen, int *err)

+{

+    /*

+    ** Check if screen exists.

+    */

+    if (screen < 0 || screen >= screenInfo.numScreens) {

+	client->errorValue = screen;

+	*err = BadValue;

+	return FALSE;

+    }

+    *pGlxScreen = glxGetScreen(screenInfo.screens[screen]);

+

+    return TRUE;

+}

+

+static int

+validGlxFBConfig(ClientPtr client, __GLXscreen *pGlxScreen, XID id,

+		 __GLXconfig **config, int *err)

+{

+    __GLXconfig *m;

+

+    for (m = pGlxScreen->fbconfigs; m != NULL; m = m->next)

+	if (m->fbconfigID == id) {

+	    *config = m;

+	    return TRUE;

+	}

+

+    client->errorValue = id;

+    *err = __glXError(GLXBadFBConfig);

+

+    return FALSE;

+}

+

+static int

+validGlxVisual(ClientPtr client, __GLXscreen *pGlxScreen, XID id,

+	       __GLXconfig **config, int *err)

+{

+    int i;

+

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

+ 	if (pGlxScreen->visuals[i]->visualID == id) {

+	    *config = pGlxScreen->visuals[i];

+	    return TRUE;

+	}

+

+    client->errorValue = id;

+    *err = BadValue;

+

+    return FALSE;

+}

+

+static int

+validGlxFBConfigForWindow(ClientPtr client, __GLXconfig *config,

+			  DrawablePtr pDraw, int *err)

+{

+    ScreenPtr pScreen = pDraw->pScreen;

+    VisualPtr pVisual = NULL;

+    XID vid;

+    int i;

+

+    vid = wVisual((WindowPtr)pDraw);

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

+	if (pScreen->visuals[i].vid == vid) {

+	    pVisual = &pScreen->visuals[i];

+	    break;

+	}

+    }

+

+    /* FIXME: What exactly should we check here... */

+    if (pVisual->class != glxConvertToXVisualType(config->visualType) ||

+	!(config->drawableType & GLX_WINDOW_BIT)) {

+	client->errorValue = pDraw->id;

+	*err = BadMatch;

+	return FALSE;

+    }

+

+    return TRUE;

+}

+

+static int

+validGlxContext(ClientPtr client, XID id, int access_mode,

+		struct glx_context **context, int *err)

+{

+    *err = dixLookupResourceByType((pointer *) context, id,

+				   __glXContextRes, client, access_mode);

+    if (*err != Success) {

+	client->errorValue = id;

+	if (*err == BadValue)

+	    *err = __glXError(GLXBadContext);

+	return FALSE;

+    }

+

+    return TRUE;

+}

+

+static int

+validGlxDrawable(ClientPtr client, XID id, int type, int access_mode,

+		 __GLXdrawable **drawable, int *err)

+{

+    int rc;

+

+    rc = dixLookupResourceByType((pointer *) drawable, id,

+				 __glXDrawableRes, client, access_mode);

+    if (rc != Success && rc != BadValue) {

+	*err = rc;

+	client->errorValue = id;

+	return FALSE;

+    }

+

+    /* If the ID of the glx drawable we looked up doesn't match the id

+     * we looked for, it's because we looked it up under the X

+     * drawable ID (see DoCreateGLXDrawable). */

+    if (rc == BadValue ||

+	(*drawable)->drawId != id ||

+	(type != GLX_DRAWABLE_ANY && type != (*drawable)->type)) {

+	client->errorValue = id;

+	switch (type) {

+	case GLX_DRAWABLE_WINDOW:

+	    *err = __glXError(GLXBadWindow);

+	    return FALSE;

+	case GLX_DRAWABLE_PIXMAP:

+	    *err = __glXError(GLXBadPixmap);

+	    return FALSE;

+	case GLX_DRAWABLE_PBUFFER:

+	    *err = __glXError(GLXBadPbuffer);

+	    return FALSE;

+	case GLX_DRAWABLE_ANY:

+	    *err = __glXError(GLXBadDrawable);

+	    return FALSE;

+	}

+    }

+

+    return TRUE;

+}

+

+void

+__glXContextDestroy(struct glx_context *context)

+{

+    __glXFlushContextCache();

+}

+

+static void __glXdirectContextDestroy(struct glx_context *context)

+{

+    __glXContextDestroy(context);

+    free(context);

+}

+

+static struct glx_context *__glXdirectContextCreate(__GLXscreen *screen,

+					      __GLXconfig *modes,

+					      struct glx_context *shareContext)

+{

+    struct glx_context *context;

+

+    context = calloc(1, sizeof (struct glx_context));

+    if (context == NULL)

+	return NULL;

+

+    context->destroy = __glXdirectContextDestroy;

+

+    return context;

+}

+

+void FlushContext(struct glx_context *cx)

+{

+    CALL_Flush( GET_DISPATCH(), () );

+    __GLX_NOTE_FLUSHED_CMDS(cx);

+}

+

+/**

+ * Create a GL context with the given properties.  This routine is used

+ * to implement \c glXCreateContext, \c glXCreateNewContext, and

+ * \c glXCreateContextWithConfigSGIX.  This works becuase of the hack way

+ * that GLXFBConfigs are implemented.  Basically, the FBConfigID is the

+ * same as the VisualID.

+ */

+

+static int

+DoCreateContext(__GLXclientState *cl, GLXContextID gcId,

+		GLXContextID shareList, __GLXconfig *config,

+		__GLXscreen *pGlxScreen, GLboolean isDirect)

+{

+    ClientPtr client = cl->client;

+    struct glx_context *glxc, *shareglxc;

+    int err;

+    

+    LEGAL_NEW_RESOURCE(gcId, client);

+

+    /*

+    ** Find the display list space that we want to share.  

+    **

+    ** NOTE: In a multithreaded X server, we would need to keep a reference

+    ** count for each display list so that if one client detroyed a list that 

+    ** another client was using, the list would not really be freed until it 

+    ** was no longer in use.  Since this sample implementation has no support 

+    ** for multithreaded servers, we don't do this.  

+    */

+    if (shareList == None) {

+	shareglxc = 0;

+    } else {

+	if (!validGlxContext(client, shareList, DixReadAccess,

+			     &shareglxc, &err))

+	    return err;

+

+	if (shareglxc->isDirect) {

+	    /*

+	    ** NOTE: no support for sharing display lists between direct

+	    ** contexts, even if they are in the same address space.

+	    */

+#if 0

+            /* Disabling this code seems to allow shared display lists

+             * and texture objects to work.  We'll leave it disabled for now.

+             */

+	    client->errorValue = shareList;

+	    return BadMatch;

+#endif

+	} else {

+	    /*

+	    ** Create an indirect context regardless of what the client asked

+	    ** for; this way we can share display list space with shareList.

+	    */

+	    isDirect = GL_FALSE;

+	}

+    }

+

+    /*

+    ** Allocate memory for the new context

+    */

+    if (!isDirect)

+	glxc = pGlxScreen->createContext(pGlxScreen, config, shareglxc);

+    else

+	glxc = __glXdirectContextCreate(pGlxScreen, config, shareglxc);

+    if (!glxc) {

+	return BadAlloc;

+    }

+

+    /*

+    ** Initially, setup the part of the context that could be used by

+    ** a GL core that needs windowing information (e.g., Mesa).

+    */

+    glxc->pGlxScreen = pGlxScreen;

+    glxc->config = config;

+

+    /*

+    ** Register this context as a resource.

+    */

+    if (!AddResource(gcId, __glXContextRes, (pointer)glxc)) {

+	(*glxc->destroy)(glxc);

+	client->errorValue = gcId;

+	return BadAlloc;

+    }

+    

+    /*

+    ** Finally, now that everything is working, setup the rest of the

+    ** context.

+    */

+    glxc->id = gcId;

+    glxc->share_id = shareList;

+    glxc->idExists = GL_TRUE;

+    glxc->isCurrent = GL_FALSE;

+    glxc->isDirect = isDirect;

+    glxc->renderMode = GL_RENDER;

+

+    __glXAddToContextList(glxc);

+

+    return Success;

+}

+

+int __glXDisp_CreateContext(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreateContextReq *req = (xGLXCreateContextReq *) pc;

+    __GLXconfig *config;

+    __GLXscreen *pGlxScreen;

+    int err;

+

+    REQUEST_SIZE_MATCH(xGLXCreateContextReq);

+

+    if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err))

+	return err;

+    if (!validGlxVisual(cl->client, pGlxScreen, req->visual, &config, &err))

+	return err;

+

+    return DoCreateContext(cl, req->context, req->shareList,

+			   config, pGlxScreen, req->isDirect);

+}

+

+int __glXDisp_CreateNewContext(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreateNewContextReq *req = (xGLXCreateNewContextReq *) pc;

+    __GLXconfig *config;

+    __GLXscreen *pGlxScreen;

+    int err;

+

+    REQUEST_SIZE_MATCH(xGLXCreateNewContextReq);

+

+    if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err))

+	return err;

+    if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err))

+	return err;

+

+    return DoCreateContext(cl, req->context, req->shareList,

+			   config, pGlxScreen, req->isDirect);

+}

+

+int __glXDisp_CreateContextWithConfigSGIX(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreateContextWithConfigSGIXReq *req = 

+	(xGLXCreateContextWithConfigSGIXReq *) pc;

+    __GLXconfig *config;

+    __GLXscreen *pGlxScreen;

+    int err;

+

+    REQUEST_SIZE_MATCH(xGLXCreateContextWithConfigSGIXReq);

+

+    if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err))

+	return err;

+    if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err))

+	return err;

+

+    return DoCreateContext(cl, req->context, req->shareList,

+			   config, pGlxScreen, req->isDirect);

+}

+int __glXDisp_DestroyContext(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXDestroyContextReq *req = (xGLXDestroyContextReq *) pc;

+    struct glx_context *glxc;

+    int err;

+

+    REQUEST_SIZE_MATCH(xGLXDestroyContextReq);

+

+    if (!validGlxContext(cl->client, req->context, DixDestroyAccess,

+			 &glxc, &err))

+	    return err;

+

+    FreeResourceByType(req->context, __glXContextRes, FALSE);

+    return Success;

+}

+

+/*****************************************************************************/

+

+/*

+** For each client, the server keeps a table of all the contexts that are

+** current for that client (each thread of a client may have its own current

+** context).  These routines add, change, and lookup contexts in the table.

+*/

+

+/*

+** Add a current context, and return the tag that will be used to refer to it.

+*/

+static int AddCurrentContext(__GLXclientState *cl, struct glx_context *glxc)

+{

+    int i;

+    int num = cl->numCurrentContexts;

+    struct glx_context **table = cl->currentContexts;

+

+    if (!glxc) return -1;

+    

+    /*

+    ** Try to find an empty slot and use it.

+    */

+    for (i=0; i < num; i++) {

+	if (!table[i]) {

+	    table[i] = glxc;

+	    return i+1;

+	}

+    }

+    /*

+    ** Didn't find a free slot, so we'll have to grow the table.

+    */

+    if (!num) {

+	table = (struct glx_context **) malloc(sizeof(struct glx_context *));

+    } else {

+	table = (struct glx_context **) realloc(table,

+					   (num+1)*sizeof(struct glx_context *));

+    }

+    table[num] = glxc;

+    cl->currentContexts = table;

+    cl->numCurrentContexts++;

+    return num+1;

+}

+

+/*

+** Given a tag, change the current context for the corresponding entry.

+*/

+static void ChangeCurrentContext(__GLXclientState *cl, struct glx_context *glxc,

+				GLXContextTag tag)

+{

+    struct glx_context **table = cl->currentContexts;

+    table[tag-1] = glxc;

+}

+

+/*

+** For this implementation we have chosen to simply use the index of the

+** context's entry in the table as the context tag.  A tag must be greater

+** than 0.

+*/

+struct glx_context *__glXLookupContextByTag(__GLXclientState *cl, GLXContextTag tag)

+{

+    int num = cl->numCurrentContexts;

+

+    if (tag < 1 || tag > num) {

+	return 0;

+    } else {

+	return cl->currentContexts[tag-1];

+    }

+}

+

+/*****************************************************************************/

+

+static void StopUsingContext(struct glx_context *glxc)

+{

+    if (glxc) {

+	if (glxc == __glXLastContext) {

+	    /* Tell server GL library */

+	    __glXLastContext = 0;

+	}

+	glxc->isCurrent = GL_FALSE;

+	if (!glxc->idExists) {

+	    __glXFreeContext(glxc);

+	}

+    }

+}

+

+static void StartUsingContext(__GLXclientState *cl, struct glx_context *glxc)

+{

+    glxc->isCurrent = GL_TRUE;

+    __glXLastContext = glxc;	

+}

+

+/**

+ * This is a helper function to handle the legacy (pre GLX 1.3) cases

+ * where passing an X window to glXMakeCurrent is valid.  Given a

+ * resource ID, look up the GLX drawable if available, otherwise, make

+ * sure it's an X window and create a GLX drawable one the fly.

+ */

+static __GLXdrawable *

+__glXGetDrawable(struct glx_context *glxc, GLXDrawable drawId, ClientPtr client,

+		 int *error)

+{

+    DrawablePtr pDraw;

+    __GLXdrawable *pGlxDraw;

+    int rc;

+

+    if (validGlxDrawable(client, drawId, GLX_DRAWABLE_ANY,

+			 DixWriteAccess, &pGlxDraw, &rc)) {

+	if (glxc != NULL && pGlxDraw->config != glxc->config) {

+	    client->errorValue = drawId;

+	    *error = BadMatch;

+	    return NULL;

+	}

+

+	return pGlxDraw;

+    }

+

+    /* No active context and an unknown drawable, bail. */

+    if (glxc == NULL) {

+	    client->errorValue = drawId;

+	    *error = BadMatch;

+	    return NULL;

+    }

+

+    /* The drawId wasn't a GLX drawable.  Make sure it's a window and

+     * create a GLXWindow for it.  Check that the drawable screen

+     * matches the context screen and that the context fbconfig is

+     * compatible with the window visual. */

+

+    rc = dixLookupDrawable(&pDraw, drawId, client, 0, DixGetAttrAccess);

+    if (rc != Success || pDraw->type != DRAWABLE_WINDOW) {

+	client->errorValue = drawId;

+	*error = __glXError(GLXBadDrawable);

+	return NULL;

+    }

+

+    if (!glxc || pDraw->pScreen != glxc->pGlxScreen->pScreen) {

+	client->errorValue = pDraw->pScreen->myNum;

+	*error = BadMatch;

+	return NULL;

+    }

+

+    if (!validGlxFBConfigForWindow(client, glxc->config, pDraw, error))

+	return NULL;

+

+    pGlxDraw = glxc->pGlxScreen->createDrawable(client, glxc->pGlxScreen,

+						pDraw, drawId,

+						GLX_DRAWABLE_WINDOW,

+						drawId, glxc->config);

+

+    /* since we are creating the drawablePrivate, drawId should be new */

+    if (!AddResource(drawId, __glXDrawableRes, pGlxDraw)) {

+	pGlxDraw->destroy (pGlxDraw);

+	*error = BadAlloc;

+	return NULL;

+    }

+

+    return pGlxDraw;

+}

+

+/*****************************************************************************/

+/*

+** Make an OpenGL context and drawable current.

+*/

+

+static int

+DoMakeCurrent(__GLXclientState *cl,

+	      GLXDrawable drawId, GLXDrawable readId,

+	      GLXContextID contextId, GLXContextTag tag)

+{

+    ClientPtr client = cl->client;

+    xGLXMakeCurrentReply reply;

+    struct glx_context *glxc, *prevglxc;

+    __GLXdrawable *drawPriv = NULL;

+    __GLXdrawable *readPriv = NULL;

+    int error;

+    GLuint  mask;

+

+    /*

+    ** If one is None and the other isn't, it's a bad match.

+    */

+

+    mask  = (drawId == None)    ? (1 << 0) : 0;

+    mask |= (readId == None)    ? (1 << 1) : 0;

+    mask |= (contextId == None) ? (1 << 2) : 0;

+

+    if ( (mask != 0x00) && (mask != 0x07) ) {

+	return BadMatch;

+    }

+    

+    /*

+    ** Lookup old context.  If we have one, it must be in a usable state.

+    */

+    if (tag != 0) {

+	prevglxc = __glXLookupContextByTag(cl, tag);

+	if (!prevglxc) {

+	    /*

+	    ** Tag for previous context is invalid.

+	    */

+	    return __glXError(GLXBadContextTag);

+	}

+	if (prevglxc->renderMode != GL_RENDER) {

+	    /* Oops.  Not in render mode render. */

+	    client->errorValue = prevglxc->id;

+	    return __glXError(GLXBadContextState);

+	}

+    } else {

+	prevglxc = 0;

+    }

+

+    /*

+    ** Lookup new context.  It must not be current for someone else.

+    */

+    if (contextId != None) {

+	int  status;

+

+	if (!validGlxContext(client, contextId, DixUseAccess, &glxc, &error))

+	    return error;

+	if ((glxc != prevglxc) && glxc->isCurrent) {

+	    /* Context is current to somebody else */

+	    return BadAccess;

+	}

+

+	assert( drawId != None );

+	assert( readId != None );

+

+	drawPriv = __glXGetDrawable(glxc, drawId, client, &status);

+	if (drawPriv == NULL)

+	    return status;

+

+	readPriv = __glXGetDrawable(glxc, readId, client, &status);

+	if (readPriv == NULL)

+	    return status;

+

+    } else {

+	/* Switching to no context.  Ignore new drawable. */

+	glxc = 0;

+	drawPriv = 0;

+	readPriv = 0;

+    }

+

+

+    if (prevglxc) {

+	/*

+	** Flush the previous context if needed.

+	*/

+	if (__GLX_HAS_UNFLUSHED_CMDS(prevglxc)) {

+	    if (__glXForceCurrent(cl, tag, (int *)&error)) {

+		CALL_Flush( GET_DISPATCH(), () );

+		__GLX_NOTE_FLUSHED_CMDS(prevglxc);

+	    } else {

+		return error;

+	    }

+	}

+

+	/*

+	** Make the previous context not current.

+	*/

+	if (!(*prevglxc->loseCurrent)(prevglxc)) {

+	    return __glXError(GLXBadContext);

+	}

+	__glXFlushContextCache();

+	if (!prevglxc->isDirect) {

+	    prevglxc->drawPriv = NULL;

+	    prevglxc->readPriv = NULL;

+	}

+    }

+	

+

+    if ((glxc != 0) && !glxc->isDirect) {

+

+	glxc->drawPriv = drawPriv;

+	glxc->readPriv = readPriv;

+

+	/* make the context current */

+	if (!(*glxc->makeCurrent)(glxc)) {

+	    glxc->drawPriv = NULL;

+	    glxc->readPriv = NULL;

+	    return __glXError(GLXBadContext);

+	}

+

+	glxc->isCurrent = GL_TRUE;

+    }

+

+    if (prevglxc) {

+	ChangeCurrentContext(cl, glxc, tag);

+	StopUsingContext(prevglxc);

+    } else {

+	tag = AddCurrentContext(cl, glxc);

+    }

+

+    if (glxc) {

+	StartUsingContext(cl, glxc);

+	reply.contextTag = tag;

+    } else {

+	reply.contextTag = 0;

+    }

+

+    reply.length = 0;

+    reply.type = X_Reply;

+    reply.sequenceNumber = client->sequence;

+

+    if (client->swapped) {

+	__glXSwapMakeCurrentReply(client, &reply);

+    } else {

+	WriteToClient(client, sz_xGLXMakeCurrentReply, (char *)&reply);

+    }

+    return Success;

+}

+

+int __glXDisp_MakeCurrent(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXMakeCurrentReq *req = (xGLXMakeCurrentReq *) pc;

+

+    REQUEST_SIZE_MATCH(xGLXMakeCurrentReq);

+

+    return DoMakeCurrent( cl, req->drawable, req->drawable,

+			  req->context, req->oldContextTag );

+}

+

+int __glXDisp_MakeContextCurrent(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXMakeContextCurrentReq *req = (xGLXMakeContextCurrentReq *) pc;

+

+    REQUEST_SIZE_MATCH(xGLXMakeContextCurrentReq);

+

+    return DoMakeCurrent( cl, req->drawable, req->readdrawable,

+			  req->context, req->oldContextTag );

+}

+

+int __glXDisp_MakeCurrentReadSGI(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXMakeCurrentReadSGIReq *req = (xGLXMakeCurrentReadSGIReq *) pc;

+

+    REQUEST_SIZE_MATCH(xGLXMakeCurrentReadSGIReq);

+

+    return DoMakeCurrent( cl, req->drawable, req->readable,

+			  req->context, req->oldContextTag );

+}

+

+int __glXDisp_IsDirect(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXIsDirectReq *req = (xGLXIsDirectReq *) pc;

+    xGLXIsDirectReply reply;

+    struct glx_context *glxc;

+    int err;

+

+    REQUEST_SIZE_MATCH(xGLXIsDirectReq);

+

+    if (!validGlxContext(cl->client, req->context, DixReadAccess, &glxc, &err))

+	return err;

+

+    reply.isDirect = glxc->isDirect;

+    reply.length = 0;

+    reply.type = X_Reply;

+    reply.sequenceNumber = client->sequence;

+

+    if (client->swapped) {

+	__glXSwapIsDirectReply(client, &reply);

+    } else {

+	WriteToClient(client, sz_xGLXIsDirectReply, (char *)&reply);

+    }

+

+    return Success;

+}

+

+int __glXDisp_QueryVersion(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXQueryVersionReq *req = (xGLXQueryVersionReq *) pc;

+    xGLXQueryVersionReply reply;

+    GLuint major, minor;

+

+    REQUEST_SIZE_MATCH(xGLXQueryVersionReq);

+

+    major = req->majorVersion;

+    minor = req->minorVersion;

+    (void)major;

+    (void)minor;

+

+    /*

+    ** Server should take into consideration the version numbers sent by the

+    ** client if it wants to work with older clients; however, in this

+    ** implementation the server just returns its version number.

+    */

+    reply.majorVersion = glxMajorVersion;

+    reply.minorVersion = glxMinorVersion;

+    reply.length = 0;

+    reply.type = X_Reply;

+    reply.sequenceNumber = client->sequence;

+

+    if (client->swapped) {

+	__glXSwapQueryVersionReply(client, &reply);

+    } else {

+	WriteToClient(client, sz_xGLXQueryVersionReply, (char *)&reply);

+    }

+    return Success;

+}

+

+int __glXDisp_WaitGL(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXWaitGLReq *req = (xGLXWaitGLReq *)pc;

+    GLXContextTag tag;

+    struct glx_context *glxc = NULL;

+    int error;

+

+    REQUEST_SIZE_MATCH(xGLXWaitGLReq);

+

+    tag = req->contextTag;

+    if (tag) {

+	glxc = __glXLookupContextByTag(cl, tag);

+	if (!glxc)

+	    return __glXError(GLXBadContextTag);

+    

+	if (!__glXForceCurrent(cl, req->contextTag, &error))

+	    return error;

+

+	CALL_Finish( GET_DISPATCH(), () );

+    }

+

+    if (glxc && glxc->drawPriv->waitGL)

+	(*glxc->drawPriv->waitGL)(glxc->drawPriv);

+

+    return Success;

+}

+

+int __glXDisp_WaitX(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXWaitXReq *req = (xGLXWaitXReq *)pc;

+    GLXContextTag tag;

+    struct glx_context *glxc = NULL;

+    int error;

+

+    REQUEST_SIZE_MATCH(xGLXWaitXReq);

+

+    tag = req->contextTag;

+    if (tag) {

+	glxc = __glXLookupContextByTag(cl, tag);

+	if (!glxc)

+	    return __glXError(GLXBadContextTag);

+    

+	if (!__glXForceCurrent(cl, req->contextTag, &error))

+	    return error;

+    }

+

+    if (glxc && glxc->drawPriv->waitX)

+	(*glxc->drawPriv->waitX)(glxc->drawPriv);

+

+    return Success;

+}

+

+int __glXDisp_CopyContext(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCopyContextReq *req = (xGLXCopyContextReq *) pc;

+    GLXContextID source;

+    GLXContextID dest;

+    GLXContextTag tag;

+    unsigned long mask;

+    struct glx_context *src, *dst;

+    int error;

+

+    REQUEST_SIZE_MATCH(xGLXCopyContextReq);

+

+    source = req->source;

+    dest = req->dest;

+    tag = req->contextTag;

+    mask = req->mask;

+    if (!validGlxContext(cl->client, source, DixReadAccess, &src, &error))

+	return error;

+    if (!validGlxContext(cl->client, dest, DixWriteAccess, &dst, &error))

+	return error;

+

+    /*

+    ** They must be in the same address space, and same screen.

+    ** NOTE: no support for direct rendering contexts here.

+    */

+    if (src->isDirect || dst->isDirect ||

+	(src->pGlxScreen != dst->pGlxScreen)) {

+	client->errorValue = source;

+	return BadMatch;

+    }

+

+    /*

+    ** The destination context must not be current for any client.

+    */

+    if (dst->isCurrent) {

+	client->errorValue = dest;

+	return BadAccess;

+    }

+

+    if (tag) {

+	struct glx_context *tagcx = __glXLookupContextByTag(cl, tag);

+	

+	if (!tagcx) {

+	    return __glXError(GLXBadContextTag);

+	}

+	if (tagcx != src) {

+	    /*

+	    ** This would be caused by a faulty implementation of the client

+	    ** library.

+	    */

+	    return BadMatch;

+	}

+	/*

+	** In this case, glXCopyContext is in both GL and X streams, in terms

+	** of sequentiality.

+	*/

+	if (__glXForceCurrent(cl, tag, &error)) {

+	    /*

+	    ** Do whatever is needed to make sure that all preceding requests

+	    ** in both streams are completed before the copy is executed.

+	    */

+	    CALL_Finish( GET_DISPATCH(), () );

+	    __GLX_NOTE_FLUSHED_CMDS(tagcx);

+	} else {

+	    return error;

+	}

+    }

+    /*

+    ** Issue copy.  The only reason for failure is a bad mask.

+    */

+    if (!(*dst->copy)(dst, src, mask)) {

+	client->errorValue = mask;

+	return BadValue;

+    }

+    return Success;

+}

+

+enum {

+    GLX_VIS_CONFIG_UNPAIRED = 18,

+    GLX_VIS_CONFIG_PAIRED = 20

+};

+

+enum {

+    GLX_VIS_CONFIG_TOTAL = GLX_VIS_CONFIG_UNPAIRED + GLX_VIS_CONFIG_PAIRED

+};

+

+int __glXDisp_GetVisualConfigs(__GLXclientState *cl, GLbyte *pc)

+{

+    xGLXGetVisualConfigsReq *req = (xGLXGetVisualConfigsReq *) pc;

+    ClientPtr client = cl->client;

+    xGLXGetVisualConfigsReply reply;

+    __GLXscreen *pGlxScreen;

+    __GLXconfig *modes;

+    CARD32 buf[GLX_VIS_CONFIG_TOTAL];

+    int p, i, err;

+    __GLX_DECLARE_SWAP_VARIABLES;

+    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXGetVisualConfigsReq);

+

+    if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err))

+	return err;

+

+    reply.numVisuals = pGlxScreen->numVisuals;

+    reply.numProps = GLX_VIS_CONFIG_TOTAL;

+    reply.length = (reply.numVisuals * __GLX_SIZE_CARD32 * GLX_VIS_CONFIG_TOTAL) >> 2;

+    reply.type = X_Reply;

+    reply.sequenceNumber = client->sequence;

+

+    if (client->swapped) {

+	__GLX_SWAP_SHORT(&reply.sequenceNumber);

+	__GLX_SWAP_INT(&reply.length);

+	__GLX_SWAP_INT(&reply.numVisuals);

+	__GLX_SWAP_INT(&reply.numProps);

+    }

+

+    WriteToClient(client, sz_xGLXGetVisualConfigsReply, (char *)&reply);

+

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

+	modes = pGlxScreen->visuals[i];

+

+	p = 0;

+	buf[p++] = modes->visualID;

+	buf[p++] = glxConvertToXVisualType( modes->visualType );

+	buf[p++] = (modes->renderType & GLX_RGBA_BIT) ? GL_TRUE : GL_FALSE;

+

+	buf[p++] = modes->redBits;

+	buf[p++] = modes->greenBits;

+	buf[p++] = modes->blueBits;

+	buf[p++] = modes->alphaBits;

+	buf[p++] = modes->accumRedBits;

+	buf[p++] = modes->accumGreenBits;

+	buf[p++] = modes->accumBlueBits;

+	buf[p++] = modes->accumAlphaBits;

+

+	buf[p++] = modes->doubleBufferMode;

+	buf[p++] = modes->stereoMode;

+

+	buf[p++] = modes->rgbBits;

+	buf[p++] = modes->depthBits;

+	buf[p++] = modes->stencilBits;

+	buf[p++] = modes->numAuxBuffers;

+	buf[p++] = modes->level;

+

+	assert(p == GLX_VIS_CONFIG_UNPAIRED);

+	/* 

+	** Add token/value pairs for extensions.

+	*/

+	buf[p++] = GLX_VISUAL_CAVEAT_EXT;

+	buf[p++] = modes->visualRating;

+	buf[p++] = GLX_TRANSPARENT_TYPE;

+	buf[p++] = modes->transparentPixel;

+	buf[p++] = GLX_TRANSPARENT_RED_VALUE;

+	buf[p++] = modes->transparentRed;

+	buf[p++] = GLX_TRANSPARENT_GREEN_VALUE;

+	buf[p++] = modes->transparentGreen;

+	buf[p++] = GLX_TRANSPARENT_BLUE_VALUE;

+	buf[p++] = modes->transparentBlue;

+	buf[p++] = GLX_TRANSPARENT_ALPHA_VALUE;

+	buf[p++] = modes->transparentAlpha;

+	buf[p++] = GLX_TRANSPARENT_INDEX_VALUE;

+	buf[p++] = modes->transparentIndex;

+	buf[p++] = GLX_SAMPLES_SGIS;

+	buf[p++] = modes->samples;

+	buf[p++] = GLX_SAMPLE_BUFFERS_SGIS;

+	buf[p++] = modes->sampleBuffers;

+	buf[p++] = 0; /* copy over visualSelectGroup (GLX_VISUAL_SELECT_GROUP_SGIX)? */

+	buf[p++] = 0;

+

+	assert(p == GLX_VIS_CONFIG_TOTAL);

+	if (client->swapped) {

+	    __GLX_SWAP_INT_ARRAY(buf, p);

+	}

+	WriteToClient(client, __GLX_SIZE_CARD32 * p, (char *)buf);

+    }

+    return Success;

+}

+

+#define __GLX_TOTAL_FBCONFIG_ATTRIBS (36)

+#define __GLX_FBCONFIG_ATTRIBS_LENGTH (__GLX_TOTAL_FBCONFIG_ATTRIBS * 2)

+/**

+ * Send the set of GLXFBConfigs to the client.  There is not currently

+ * and interface into the driver on the server-side to get GLXFBConfigs,

+ * so we "invent" some based on the \c __GLXvisualConfig structures that

+ * the driver does supply.

+ * 

+ * The reply format for both \c glXGetFBConfigs and \c glXGetFBConfigsSGIX

+ * is the same, so this routine pulls double duty.

+ */

+

+static int

+DoGetFBConfigs(__GLXclientState *cl, unsigned screen)

+{

+    ClientPtr client = cl->client;

+    xGLXGetFBConfigsReply reply;

+    __GLXscreen *pGlxScreen;

+    CARD32 buf[__GLX_FBCONFIG_ATTRIBS_LENGTH];

+    int p, err;

+    __GLXconfig *modes;

+    __GLX_DECLARE_SWAP_VARIABLES;

+    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;

+

+    if (!validGlxScreen(cl->client, screen, &pGlxScreen, &err))

+	return err;

+

+    reply.numFBConfigs = pGlxScreen->numFBConfigs;

+    reply.numAttribs = __GLX_TOTAL_FBCONFIG_ATTRIBS;

+    reply.length = (__GLX_FBCONFIG_ATTRIBS_LENGTH * reply.numFBConfigs);

+    reply.type = X_Reply;

+    reply.sequenceNumber = client->sequence;

+

+    if (client->swapped) {

+	__GLX_SWAP_SHORT(&reply.sequenceNumber);

+	__GLX_SWAP_INT(&reply.length);

+	__GLX_SWAP_INT(&reply.numFBConfigs);

+	__GLX_SWAP_INT(&reply.numAttribs);

+    }

+

+    WriteToClient(client, sz_xGLXGetFBConfigsReply, (char *)&reply);

+

+    for (modes = pGlxScreen->fbconfigs; modes != NULL; modes = modes->next) {

+	p = 0;

+

+#define WRITE_PAIR(tag,value) \

+    do { buf[p++] = tag ; buf[p++] = value ; } while( 0 )

+

+	WRITE_PAIR( GLX_VISUAL_ID,        modes->visualID );

+	WRITE_PAIR( GLX_FBCONFIG_ID,      modes->fbconfigID );

+	WRITE_PAIR( GLX_X_RENDERABLE,     GL_TRUE );

+

+	WRITE_PAIR( GLX_RGBA,

+		    (modes->renderType & GLX_RGBA_BIT) ? GL_TRUE : GL_FALSE );

+	WRITE_PAIR( GLX_RENDER_TYPE,      modes->renderType );

+	WRITE_PAIR( GLX_DOUBLEBUFFER,     modes->doubleBufferMode );

+	WRITE_PAIR( GLX_STEREO,           modes->stereoMode );

+

+	WRITE_PAIR( GLX_BUFFER_SIZE,      modes->rgbBits );

+	WRITE_PAIR( GLX_LEVEL,            modes->level );

+	WRITE_PAIR( GLX_AUX_BUFFERS,      modes->numAuxBuffers );

+	WRITE_PAIR( GLX_RED_SIZE,         modes->redBits );

+	WRITE_PAIR( GLX_GREEN_SIZE,       modes->greenBits );

+	WRITE_PAIR( GLX_BLUE_SIZE,        modes->blueBits );

+	WRITE_PAIR( GLX_ALPHA_SIZE,       modes->alphaBits );

+	WRITE_PAIR( GLX_ACCUM_RED_SIZE,   modes->accumRedBits );

+	WRITE_PAIR( GLX_ACCUM_GREEN_SIZE, modes->accumGreenBits );

+	WRITE_PAIR( GLX_ACCUM_BLUE_SIZE,  modes->accumBlueBits );

+	WRITE_PAIR( GLX_ACCUM_ALPHA_SIZE, modes->accumAlphaBits );

+	WRITE_PAIR( GLX_DEPTH_SIZE,       modes->depthBits );

+	WRITE_PAIR( GLX_STENCIL_SIZE,     modes->stencilBits );

+	WRITE_PAIR( GLX_X_VISUAL_TYPE,    modes->visualType );

+	WRITE_PAIR( GLX_CONFIG_CAVEAT, modes->visualRating );

+	WRITE_PAIR( GLX_TRANSPARENT_TYPE, modes->transparentPixel );

+	WRITE_PAIR( GLX_TRANSPARENT_RED_VALUE, modes->transparentRed );

+	WRITE_PAIR( GLX_TRANSPARENT_GREEN_VALUE, modes->transparentGreen );

+	WRITE_PAIR( GLX_TRANSPARENT_BLUE_VALUE, modes->transparentBlue );

+	WRITE_PAIR( GLX_TRANSPARENT_ALPHA_VALUE, modes->transparentAlpha );

+	WRITE_PAIR( GLX_TRANSPARENT_INDEX_VALUE, modes->transparentIndex );

+	WRITE_PAIR( GLX_SWAP_METHOD_OML, modes->swapMethod );

+	WRITE_PAIR( GLX_SAMPLES_SGIS, modes->samples );

+	WRITE_PAIR( GLX_SAMPLE_BUFFERS_SGIS, modes->sampleBuffers );

+	/* GLX_VISUAL_SELECT_GROUP_SGIX ? */

+	WRITE_PAIR( GLX_DRAWABLE_TYPE, modes->drawableType );

+	WRITE_PAIR( GLX_BIND_TO_TEXTURE_RGB_EXT, modes->bindToTextureRgb );

+	WRITE_PAIR( GLX_BIND_TO_TEXTURE_RGBA_EXT, modes->bindToTextureRgba );

+	WRITE_PAIR( GLX_BIND_TO_MIPMAP_TEXTURE_EXT, modes->bindToMipmapTexture );

+	WRITE_PAIR( GLX_BIND_TO_TEXTURE_TARGETS_EXT, modes->bindToTextureTargets );

+

+	if (client->swapped) {

+	    __GLX_SWAP_INT_ARRAY(buf, __GLX_FBCONFIG_ATTRIBS_LENGTH);

+	}

+	WriteToClient(client, __GLX_SIZE_CARD32 * __GLX_FBCONFIG_ATTRIBS_LENGTH,

+		      (char *)buf);

+    }

+    return Success;

+}

+

+

+int __glXDisp_GetFBConfigs(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXGetFBConfigsReq *req = (xGLXGetFBConfigsReq *) pc;

+    REQUEST_SIZE_MATCH(xGLXGetFBConfigsReq);

+    return DoGetFBConfigs(cl, req->screen);

+}

+

+int __glXDisp_GetFBConfigsSGIX(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXGetFBConfigsSGIXReq *req = (xGLXGetFBConfigsSGIXReq *) pc;

+    /* work around mesa bug, don't use REQUEST_SIZE_MATCH */

+    REQUEST_AT_LEAST_SIZE(xGLXGetFBConfigsSGIXReq);

+    return DoGetFBConfigs(cl, req->screen);

+}

+

+GLboolean

+__glXDrawableInit(__GLXdrawable *drawable,

+		  __GLXscreen *screen, DrawablePtr pDraw, int type,

+		  XID drawId, __GLXconfig *config)

+{

+    drawable->pDraw = pDraw;

+    drawable->type = type;

+    drawable->drawId = drawId;

+    drawable->config = config;

+    drawable->eventMask = 0;

+

+    return GL_TRUE;

+}

+

+void

+__glXDrawableRelease(__GLXdrawable *drawable)

+{

+}

+

+static int 

+DoCreateGLXDrawable(ClientPtr client, __GLXscreen *pGlxScreen,

+		    __GLXconfig *config, DrawablePtr pDraw, XID drawableId,

+		    XID glxDrawableId, int type)

+{

+    __GLXdrawable *pGlxDraw;

+

+    if (pGlxScreen->pScreen != pDraw->pScreen)

+	return BadMatch;

+

+    pGlxDraw = pGlxScreen->createDrawable(client, pGlxScreen, pDraw,

+					  drawableId, type,

+					  glxDrawableId, config);

+    if (pGlxDraw == NULL)

+	return BadAlloc;

+

+    if (!AddResource(glxDrawableId, __glXDrawableRes, pGlxDraw)) {

+	pGlxDraw->destroy (pGlxDraw);

+	return BadAlloc;

+    }

+

+    /* Add the glx drawable under the XID of the underlying X drawable

+     * too.  That way we'll get a callback in DrawableGone and can

+     * clean up properly when the drawable is destroyed. */

+    if (drawableId != glxDrawableId &&

+	!AddResource(pDraw->id, __glXDrawableRes, pGlxDraw)) {

+	pGlxDraw->destroy (pGlxDraw);

+	return BadAlloc;

+    }

+

+    return Success;

+}

+

+static int

+DoCreateGLXPixmap(ClientPtr client, __GLXscreen *pGlxScreen, __GLXconfig *config,

+		  XID drawableId, XID glxDrawableId)

+{

+    DrawablePtr pDraw;

+    int err;

+

+    LEGAL_NEW_RESOURCE(glxDrawableId, client);

+

+    err = dixLookupDrawable(&pDraw, drawableId, client, 0, DixAddAccess);

+    if (err != Success) {

+	client->errorValue = drawableId;

+	return err;

+    }

+    if (pDraw->type != DRAWABLE_PIXMAP) {

+	client->errorValue = drawableId;

+	return BadPixmap;

+    }

+

+    err = DoCreateGLXDrawable(client, pGlxScreen, config, pDraw, drawableId,

+			      glxDrawableId, GLX_DRAWABLE_PIXMAP);

+

+    return err;

+}

+

+static void

+determineTextureTarget(ClientPtr client, XID glxDrawableID,

+		       CARD32 *attribs, CARD32 numAttribs)

+{

+    GLenum target = 0;

+    GLenum format = 0;

+    int i, err;

+    __GLXdrawable *pGlxDraw;

+

+    if (!validGlxDrawable(client, glxDrawableID, GLX_DRAWABLE_PIXMAP,

+			  DixWriteAccess, &pGlxDraw, &err))

+	/* We just added it in CreatePixmap, so we should never get here. */

+	return;

+

+    for (i = 0; i < numAttribs; i++) {

+	if (attribs[2 * i] == GLX_TEXTURE_TARGET_EXT) {

+	    switch (attribs[2 * i + 1]) {

+	    case GLX_TEXTURE_2D_EXT:

+		target = GL_TEXTURE_2D;

+		break;

+	    case GLX_TEXTURE_RECTANGLE_EXT:

+		target = GL_TEXTURE_RECTANGLE_ARB;

+		break;

+	    }

+	}

+

+	if (attribs[2 * i] == GLX_TEXTURE_FORMAT_EXT)

+		format = attribs[2 * i + 1];

+    }

+ 

+    if (!target) {

+	int w = pGlxDraw->pDraw->width, h = pGlxDraw->pDraw->height;

+	

+	if (h & (h - 1) || w & (w - 1))

+	    target = GL_TEXTURE_RECTANGLE_ARB;

+	else

+	    target = GL_TEXTURE_2D;

+    }

+

+    pGlxDraw->target = target;

+    pGlxDraw->format = format;

+}

+

+int __glXDisp_CreateGLXPixmap(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreateGLXPixmapReq *req = (xGLXCreateGLXPixmapReq *) pc;

+    __GLXconfig *config;

+    __GLXscreen *pGlxScreen;

+    int err;

+

+    REQUEST_SIZE_MATCH(xGLXCreateGLXPixmapReq);

+

+    if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err))

+	return err;

+    if (!validGlxVisual(cl->client, pGlxScreen, req->visual, &config, &err))

+	return err;

+

+    return DoCreateGLXPixmap(cl->client, pGlxScreen, config,

+			     req->pixmap, req->glxpixmap);

+}

+

+int __glXDisp_CreatePixmap(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreatePixmapReq *req = (xGLXCreatePixmapReq *) pc;

+    __GLXconfig *config;

+    __GLXscreen *pGlxScreen;

+    int err;

+

+    REQUEST_AT_LEAST_SIZE(xGLXCreatePixmapReq);

+    if (req->numAttribs > (UINT32_MAX >> 3)) {

+	client->errorValue = req->numAttribs;

+	return BadValue;

+    }

+    REQUEST_FIXED_SIZE(xGLXCreatePixmapReq, req->numAttribs << 3);

+

+    if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err))

+	return err;

+    if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err))

+	return err;

+

+    err = DoCreateGLXPixmap(cl->client, pGlxScreen, config,

+			    req->pixmap, req->glxpixmap);

+    if (err != Success)

+	return err;

+

+    determineTextureTarget(cl->client, req->glxpixmap,

+			   (CARD32*) (req + 1), req->numAttribs);

+

+    return Success;

+}

+

+int __glXDisp_CreateGLXPixmapWithConfigSGIX(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreateGLXPixmapWithConfigSGIXReq *req = 

+	(xGLXCreateGLXPixmapWithConfigSGIXReq *) pc;

+    __GLXconfig *config;

+    __GLXscreen *pGlxScreen;

+    int err;

+

+    REQUEST_SIZE_MATCH(xGLXCreateGLXPixmapWithConfigSGIXReq);

+

+    if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err))

+	return err;

+    if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err))

+	return err;

+

+    return DoCreateGLXPixmap(cl->client, pGlxScreen,

+			     config, req->pixmap, req->glxpixmap);

+}

+

+

+static int DoDestroyDrawable(__GLXclientState *cl, XID glxdrawable, int type)

+{

+    __GLXdrawable *pGlxDraw;

+    int err;

+

+    if (!validGlxDrawable(cl->client, glxdrawable, type,

+			  DixDestroyAccess, &pGlxDraw, &err))

+	return err;

+

+    FreeResource(glxdrawable, FALSE);

+

+    return Success;

+}

+

+int __glXDisp_DestroyGLXPixmap(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXDestroyGLXPixmapReq *req = (xGLXDestroyGLXPixmapReq *) pc;

+

+    REQUEST_SIZE_MATCH(xGLXDestroyGLXPixmapReq);

+

+    return DoDestroyDrawable(cl, req->glxpixmap, GLX_DRAWABLE_PIXMAP);

+}

+

+int __glXDisp_DestroyPixmap(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXDestroyPixmapReq *req = (xGLXDestroyPixmapReq *) pc;

+

+    /* should be REQUEST_SIZE_MATCH, but mesa's glXDestroyPixmap used to set

+     * length to 3 instead of 2 */

+    REQUEST_AT_LEAST_SIZE(xGLXDestroyPixmapReq);

+

+    return DoDestroyDrawable(cl, req->glxpixmap, GLX_DRAWABLE_PIXMAP);

+}

+

+static int

+DoCreatePbuffer(ClientPtr client, int screenNum, XID fbconfigId,

+		int width, int height, XID glxDrawableId)

+{

+    __GLXconfig	*config;

+    __GLXscreen		*pGlxScreen;

+    PixmapPtr		 pPixmap;

+    int			 err;

+

+    LEGAL_NEW_RESOURCE(glxDrawableId, client);

+

+    if (!validGlxScreen(client, screenNum, &pGlxScreen, &err))

+	return err;

+    if (!validGlxFBConfig(client, pGlxScreen, fbconfigId, &config, &err))

+	return err;

+

+    __glXenterServer(GL_FALSE);

+    pPixmap = (*pGlxScreen->pScreen->CreatePixmap) (pGlxScreen->pScreen,

+						    width, height, config->rgbBits, 0);

+    __glXleaveServer(GL_FALSE);

+

+    /* Assign the pixmap the same id as the pbuffer and add it as a

+     * resource so it and the DRI2 drawable will be reclaimed when the

+     * pbuffer is destroyed. */

+    pPixmap->drawable.id = glxDrawableId;

+    if (!AddResource(pPixmap->drawable.id, RT_PIXMAP, pPixmap))

+	return BadAlloc;

+

+    return DoCreateGLXDrawable(client, pGlxScreen, config, &pPixmap->drawable,

+			       glxDrawableId, glxDrawableId,

+			       GLX_DRAWABLE_PBUFFER);

+}

+

+int __glXDisp_CreatePbuffer(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreatePbufferReq	*req = (xGLXCreatePbufferReq *) pc;

+    CARD32			*attrs;

+    int				 width, height, i;

+

+    REQUEST_AT_LEAST_SIZE(xGLXCreatePbufferReq);

+    if (req->numAttribs > (UINT32_MAX >> 3)) {

+	client->errorValue = req->numAttribs;

+	return BadValue;

+    }

+    REQUEST_FIXED_SIZE(xGLXCreatePbufferReq, req->numAttribs << 3);

+

+    attrs = (CARD32 *) (req + 1);

+    width = 0;

+    height = 0;

+

+    for (i = 0; i < req->numAttribs; i++) {

+	switch (attrs[i * 2]) {

+	case GLX_PBUFFER_WIDTH:

+	    width = attrs[i * 2 + 1];

+	    break;

+	case GLX_PBUFFER_HEIGHT:

+	    height = attrs[i * 2 + 1];

+	    break;

+	case GLX_LARGEST_PBUFFER:

+	case GLX_PRESERVED_CONTENTS:

+	    /* FIXME: huh... */

+	    break;

+	}

+    }

+

+    return DoCreatePbuffer(cl->client, req->screen, req->fbconfig,

+			   width, height, req->pbuffer);

+}

+

+int __glXDisp_CreateGLXPbufferSGIX(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreateGLXPbufferSGIXReq *req = (xGLXCreateGLXPbufferSGIXReq *) pc;

+

+    REQUEST_AT_LEAST_SIZE(xGLXCreateGLXPbufferSGIXReq);

+

+    return DoCreatePbuffer(cl->client, req->screen, req->fbconfig,

+			   req->width, req->height, req->pbuffer);

+}

+

+int __glXDisp_DestroyPbuffer(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXDestroyPbufferReq *req = (xGLXDestroyPbufferReq *) pc;

+

+    REQUEST_SIZE_MATCH(xGLXDestroyPbufferReq);

+

+    return DoDestroyDrawable(cl, req->pbuffer, GLX_DRAWABLE_PBUFFER);

+}

+

+int __glXDisp_DestroyGLXPbufferSGIX(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXDestroyGLXPbufferSGIXReq *req = (xGLXDestroyGLXPbufferSGIXReq *) pc;

+

+    REQUEST_SIZE_MATCH(xGLXDestroyGLXPbufferSGIXReq);

+

+    return DoDestroyDrawable(cl, req->pbuffer, GLX_DRAWABLE_PBUFFER);

+}

+

+static int

+DoChangeDrawableAttributes(ClientPtr client, XID glxdrawable,

+			   int numAttribs, CARD32 *attribs)

+{

+    __GLXdrawable *pGlxDraw;

+    int i, err;

+

+    if (!validGlxDrawable(client, glxdrawable, GLX_DRAWABLE_ANY,

+			  DixSetAttrAccess, &pGlxDraw, &err))

+	return err;

+

+    for (i = 0; i < numAttribs; i++) {

+	switch(attribs[i * 2]) {

+	case GLX_EVENT_MASK:

+	    /* All we do is to record the event mask so we can send it

+	     * back when queried.  We never actually clobber the

+	     * pbuffers, so we never need to send out the event. */

+	    pGlxDraw->eventMask = attribs[i * 2 + 1];

+	    break;

+	}

+    }

+

+    return Success;

+}

+

+int __glXDisp_ChangeDrawableAttributes(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXChangeDrawableAttributesReq *req =

+	(xGLXChangeDrawableAttributesReq *) pc;

+

+    REQUEST_AT_LEAST_SIZE(xGLXChangeDrawableAttributesReq);

+    if (req->numAttribs > (UINT32_MAX >> 3)) {

+	client->errorValue = req->numAttribs;

+	return BadValue;

+    }

+#if 0

+    /* mesa sends an additional 8 bytes */

+    REQUEST_FIXED_SIZE(xGLXChangeDrawableAttributesReq, req->numAttribs << 3);

+#else

+    if (((sizeof(xGLXChangeDrawableAttributesReq) + (req->numAttribs << 3)) >> 2) < client->req_len)

+	    return BadLength;

+#endif

+

+    return DoChangeDrawableAttributes(cl->client, req->drawable,

+				      req->numAttribs, (CARD32 *) (req + 1));

+}

+

+int __glXDisp_ChangeDrawableAttributesSGIX(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXChangeDrawableAttributesSGIXReq *req =

+	(xGLXChangeDrawableAttributesSGIXReq *)pc;

+

+    REQUEST_AT_LEAST_SIZE(xGLXChangeDrawableAttributesSGIXReq);

+    if (req->numAttribs > (UINT32_MAX >> 3)) {

+	client->errorValue = req->numAttribs;

+	return BadValue;

+    }

+    REQUEST_FIXED_SIZE(xGLXChangeDrawableAttributesSGIXReq, req->numAttribs << 3);

+

+    return DoChangeDrawableAttributes(cl->client, req->drawable,

+				      req->numAttribs, (CARD32 *) (req + 1));

+}

+

+int __glXDisp_CreateWindow(__GLXclientState *cl, GLbyte *pc)

+{

+    xGLXCreateWindowReq	*req = (xGLXCreateWindowReq *) pc;

+    __GLXconfig	*config;

+    __GLXscreen		*pGlxScreen;

+    ClientPtr		 client = cl->client;

+    DrawablePtr		 pDraw;

+    int			 err;

+

+    REQUEST_AT_LEAST_SIZE(xGLXCreateWindowReq);

+    if (req->numAttribs > (UINT32_MAX >> 3)) {

+	client->errorValue = req->numAttribs;

+	return BadValue;

+    }

+    REQUEST_FIXED_SIZE(xGLXCreateWindowReq, req->numAttribs << 3);

+

+    LEGAL_NEW_RESOURCE(req->glxwindow, client);

+

+    if (!validGlxScreen(client, req->screen, &pGlxScreen, &err))

+	return err;

+    if (!validGlxFBConfig(client, pGlxScreen, req->fbconfig, &config, &err))

+	return err;

+

+    err = dixLookupDrawable(&pDraw, req->window, client, 0, DixAddAccess);

+    if (err != Success || pDraw->type != DRAWABLE_WINDOW) {

+	client->errorValue = req->window;

+	return BadWindow;

+    }

+

+    if (!validGlxFBConfigForWindow(client, config, pDraw, &err))

+	return err;

+

+    return DoCreateGLXDrawable(client, pGlxScreen, config,

+			       pDraw, req->window,

+			       req->glxwindow, GLX_DRAWABLE_WINDOW);

+}

+

+int __glXDisp_DestroyWindow(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXDestroyWindowReq *req = (xGLXDestroyWindowReq *) pc;

+

+    /* mesa's glXDestroyWindow used to set length to 3 instead of 2 */

+    REQUEST_AT_LEAST_SIZE(xGLXDestroyWindowReq);

+

+    return DoDestroyDrawable(cl, req->glxwindow, GLX_DRAWABLE_WINDOW);

+}

+

+

+/*****************************************************************************/

+

+/*

+** NOTE: There is no portable implementation for swap buffers as of

+** this time that is of value.  Consequently, this code must be

+** implemented by somebody other than SGI.

+*/

+int __glXDisp_SwapBuffers(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXSwapBuffersReq *req = (xGLXSwapBuffersReq *) pc;

+    GLXContextTag tag;

+    XID drawId;

+    struct glx_context *glxc = NULL;

+    __GLXdrawable *pGlxDraw;

+    int error;

+

+    REQUEST_SIZE_MATCH(xGLXSwapBuffersReq);

+

+    tag = req->contextTag;

+    drawId = req->drawable;

+    if (tag) {

+	glxc = __glXLookupContextByTag(cl, tag);

+	if (!glxc) {

+	    return __glXError(GLXBadContextTag);

+	}

+	/*

+	** The calling thread is swapping its current drawable.  In this case,

+	** glxSwapBuffers is in both GL and X streams, in terms of

+	** sequentiality.

+	*/

+	if (__glXForceCurrent(cl, tag, &error)) {

+	    /*

+	    ** Do whatever is needed to make sure that all preceding requests

+	    ** in both streams are completed before the swap is executed.

+	    */

+	    CALL_Finish( GET_DISPATCH(), () );

+	    __GLX_NOTE_FLUSHED_CMDS(glxc);

+	} else {

+	    return error;

+	}

+    }

+

+    pGlxDraw = __glXGetDrawable(glxc, drawId, client, &error);

+    if (pGlxDraw == NULL)

+	return error;

+

+    if (pGlxDraw->type == DRAWABLE_WINDOW &&

+	(*pGlxDraw->swapBuffers)(cl->client, pGlxDraw) == GL_FALSE)

+	return __glXError(GLXBadDrawable);

+

+    return Success;

+}

+

+

+static int

+DoQueryContext(__GLXclientState *cl, GLXContextID gcId)

+{

+    ClientPtr client = cl->client;

+    struct glx_context *ctx;

+    xGLXQueryContextInfoEXTReply reply;

+    int nProps;

+    int *sendBuf, *pSendBuf;

+    int nReplyBytes;

+    int err;

+

+    if (!validGlxContext(cl->client, gcId, DixReadAccess, &ctx, &err))

+	return err;

+

+    nProps = 3;

+    reply.length = nProps << 1;

+    reply.type = X_Reply;

+    reply.sequenceNumber = client->sequence;

+    reply.n = nProps;

+

+    nReplyBytes = reply.length << 2;

+    sendBuf = (int *)malloc((size_t)nReplyBytes);

+    if (sendBuf == NULL) {

+	return __glXError(GLXBadContext);	/* XXX: Is this correct? */

+    }

+    pSendBuf = sendBuf;

+    *pSendBuf++ = GLX_SHARE_CONTEXT_EXT;

+    *pSendBuf++ = (int)(ctx->share_id);

+    *pSendBuf++ = GLX_VISUAL_ID_EXT;

+    *pSendBuf++ = (int)(ctx->config->visualID);

+    *pSendBuf++ = GLX_SCREEN_EXT;

+    *pSendBuf++ = (int)(ctx->pGlxScreen->pScreen->myNum);

+

+    if (client->swapped) {

+	__glXSwapQueryContextInfoEXTReply(client, &reply, sendBuf);

+    } else {

+	WriteToClient(client, sz_xGLXQueryContextInfoEXTReply, (char *)&reply);

+	WriteToClient(client, nReplyBytes, (char *)sendBuf);

+    }

+    free((char *)sendBuf);

+

+    return Success;

+}

+

+int __glXDisp_QueryContextInfoEXT(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXQueryContextInfoEXTReq *req = (xGLXQueryContextInfoEXTReq *) pc;

+

+    REQUEST_SIZE_MATCH(xGLXQueryContextInfoEXTReq);

+

+    return DoQueryContext(cl, req->context);

+}

+

+int __glXDisp_QueryContext(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXQueryContextReq *req = (xGLXQueryContextReq *) pc;

+

+    REQUEST_SIZE_MATCH(xGLXQueryContextReq);

+

+    return DoQueryContext(cl, req->context);

+}

+

+int __glXDisp_BindTexImageEXT(__GLXclientState *cl, GLbyte *pc)

+{

+    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;

+    ClientPtr		 client = cl->client;

+    struct glx_context	*context;

+    __GLXdrawable	*pGlxDraw;

+    GLXDrawable		 drawId;

+    int			 buffer;

+    int			 error;

+    CARD32		 num_attribs;

+

+    if ((sizeof(xGLXVendorPrivateReq) + 12) >> 2 > client->req_len)

+	return BadLength;

+

+    pc += __GLX_VENDPRIV_HDR_SIZE;

+

+    drawId = *((CARD32 *) (pc));

+    buffer = *((INT32 *)  (pc + 4));

+    num_attribs = *((CARD32 *) (pc + 8));

+    if (num_attribs > (UINT32_MAX >> 3)) {

+	client->errorValue = num_attribs;

+	return BadValue;

+    }

+    REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 12 + (num_attribs << 3));

+

+    if (buffer != GLX_FRONT_LEFT_EXT)

+	return __glXError(GLXBadPixmap);

+

+    context = __glXForceCurrent (cl, req->contextTag, &error);

+    if (!context)

+	return error;

+

+    if (!validGlxDrawable(client, drawId, GLX_DRAWABLE_PIXMAP,

+			  DixReadAccess, &pGlxDraw, &error))

+	return error;

+

+    if (!context->textureFromPixmap)

+	return __glXError(GLXUnsupportedPrivateRequest);

+

+    return context->textureFromPixmap->bindTexImage(context,

+						    buffer,

+						    pGlxDraw);

+}

+

+int __glXDisp_ReleaseTexImageEXT(__GLXclientState *cl, GLbyte *pc)

+{

+    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;

+    ClientPtr		 client = cl->client;

+    __GLXdrawable	*pGlxDraw;

+    struct glx_context	*context;

+    GLXDrawable		 drawId;

+    int			 buffer;

+    int			 error;

+

+    REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 8);

+

+    pc += __GLX_VENDPRIV_HDR_SIZE;

+

+    drawId = *((CARD32 *) (pc));

+    buffer = *((INT32 *)  (pc + 4));

+    

+    context = __glXForceCurrent (cl, req->contextTag, &error);

+    if (!context)

+	return error;

+

+    if (!validGlxDrawable(client, drawId, GLX_DRAWABLE_PIXMAP,

+			  DixReadAccess, &pGlxDraw, &error))

+	return error;

+

+    if (!context->textureFromPixmap)

+	return __glXError(GLXUnsupportedPrivateRequest);

+

+    return context->textureFromPixmap->releaseTexImage(context,

+						       buffer,

+						       pGlxDraw);

+}

+

+int __glXDisp_CopySubBufferMESA(__GLXclientState *cl, GLbyte *pc)

+{

+    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;

+    GLXContextTag         tag = req->contextTag;

+    struct glx_context         *glxc = NULL;

+    __GLXdrawable        *pGlxDraw;

+    ClientPtr		  client = cl->client;

+    GLXDrawable		  drawId;

+    int                   error;

+    int                   x, y, width, height;

+

+    (void) client;

+    (void) req;

+

+    REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 20);

+

+    pc += __GLX_VENDPRIV_HDR_SIZE;

+

+    drawId = *((CARD32 *) (pc));

+    x      = *((INT32 *)  (pc + 4));

+    y      = *((INT32 *)  (pc + 8));

+    width  = *((INT32 *)  (pc + 12));

+    height = *((INT32 *)  (pc + 16));

+

+    if (tag) {

+	glxc = __glXLookupContextByTag(cl, tag);

+	if (!glxc) {

+	    return __glXError(GLXBadContextTag);

+	}

+	/*

+	** The calling thread is swapping its current drawable.  In this case,

+	** glxSwapBuffers is in both GL and X streams, in terms of

+	** sequentiality.

+	*/

+	if (__glXForceCurrent(cl, tag, &error)) {

+	    /*

+	    ** Do whatever is needed to make sure that all preceding requests

+	    ** in both streams are completed before the swap is executed.

+	    */

+	    CALL_Finish( GET_DISPATCH(), () );

+	    __GLX_NOTE_FLUSHED_CMDS(glxc);

+	} else {

+	    return error;

+	}

+    }

+

+    pGlxDraw = __glXGetDrawable(glxc, drawId, client, &error);

+    if (!pGlxDraw)

+	return error;

+

+    if (pGlxDraw == NULL ||

+	pGlxDraw->type != GLX_DRAWABLE_WINDOW ||

+	pGlxDraw->copySubBuffer == NULL)

+	return __glXError(GLXBadDrawable);

+

+    (*pGlxDraw->copySubBuffer)(pGlxDraw, x, y, width, height);

+

+    return Success;

+}

+

+/*

+** Get drawable attributes

+*/

+static int

+DoGetDrawableAttributes(__GLXclientState *cl, XID drawId)

+{

+    ClientPtr client = cl->client;

+    xGLXGetDrawableAttributesReply reply;

+    __GLXdrawable *pGlxDraw;

+    CARD32 attributes[6];

+    int numAttribs, error;

+

+    if (!validGlxDrawable(client, drawId, GLX_DRAWABLE_ANY,

+			  DixGetAttrAccess, &pGlxDraw, &error))

+	return error;

+

+    numAttribs = 3;

+    reply.length = numAttribs << 1;

+    reply.type = X_Reply;

+    reply.sequenceNumber = client->sequence;

+    reply.numAttribs = numAttribs;

+

+    attributes[0] = GLX_TEXTURE_TARGET_EXT;

+    attributes[1] = pGlxDraw->target == GL_TEXTURE_2D ? GLX_TEXTURE_2D_EXT :

+	GLX_TEXTURE_RECTANGLE_EXT;

+    attributes[2] = GLX_Y_INVERTED_EXT;

+    attributes[3] = GL_FALSE;

+    attributes[4] = GLX_EVENT_MASK;

+    attributes[5] = pGlxDraw->eventMask;

+

+    if (client->swapped) {

+	__glXSwapGetDrawableAttributesReply(client, &reply, attributes);

+    } else {

+	WriteToClient(client, sz_xGLXGetDrawableAttributesReply,

+		      (char *)&reply);

+	WriteToClient(client, reply.length * sizeof (CARD32),

+		      (char *)attributes);

+    }

+

+    return Success;

+}

+

+int __glXDisp_GetDrawableAttributes(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXGetDrawableAttributesReq *req = (xGLXGetDrawableAttributesReq *)pc;

+

+    /* this should be REQUEST_SIZE_MATCH, but mesa sends an additional 4 bytes */

+    REQUEST_AT_LEAST_SIZE(xGLXGetDrawableAttributesReq);

+

+    return DoGetDrawableAttributes(cl, req->drawable);

+}

+

+int __glXDisp_GetDrawableAttributesSGIX(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXGetDrawableAttributesSGIXReq *req =

+	(xGLXGetDrawableAttributesSGIXReq *)pc;

+    

+    REQUEST_SIZE_MATCH(xGLXGetDrawableAttributesSGIXReq);

+

+    return DoGetDrawableAttributes(cl, req->drawable);

+}

+

+/************************************************************************/

+

+/*

+** Render and Renderlarge are not in the GLX API.  They are used by the GLX

+** client library to send batches of GL rendering commands.

+*/

+

+/*

+** Execute all the drawing commands in a request.

+*/

+int __glXDisp_Render(__GLXclientState *cl, GLbyte *pc)

+{

+    xGLXRenderReq *req;

+    ClientPtr client= cl->client;

+    int left, cmdlen, error;

+    int commandsDone;

+    CARD16 opcode;

+    __GLXrenderHeader *hdr;

+    struct glx_context *glxc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_AT_LEAST_SIZE(xGLXRenderReq);

+

+    req = (xGLXRenderReq *) pc;

+    if (client->swapped) {

+	__GLX_SWAP_SHORT(&req->length);

+	__GLX_SWAP_INT(&req->contextTag);

+    }

+

+    glxc = __glXForceCurrent(cl, req->contextTag, &error);

+    if (!glxc) {

+	return error;

+    }

+

+    commandsDone = 0;

+    pc += sz_xGLXRenderReq;

+    left = (req->length << 2) - sz_xGLXRenderReq;

+    while (left > 0) {

+        __GLXrenderSizeData entry;

+        int extra;

+	__GLXdispatchRenderProcPtr proc;

+	int err;

+

+	if (left < sizeof(__GLXrenderHeader))

+	    return BadLength;

+

+	/*

+	** Verify that the header length and the overall length agree.

+	** Also, each command must be word aligned.

+	*/

+	hdr = (__GLXrenderHeader *) pc;

+	if (client->swapped) {

+	    __GLX_SWAP_SHORT(&hdr->length);

+	    __GLX_SWAP_SHORT(&hdr->opcode);

+	}

+	cmdlen = hdr->length;

+	opcode = hdr->opcode;

+

+	/*

+	** Check for core opcodes and grab entry data.

+	*/

+	err = __glXGetProtocolSizeData(& Render_dispatch_info, opcode, & entry);

+	proc = (__GLXdispatchRenderProcPtr)

+	    __glXGetProtocolDecodeFunction(& Render_dispatch_info,

+					   opcode, client->swapped);

+

+	if ((err < 0) || (proc == NULL)) {

+	    client->errorValue = commandsDone;

+	    return __glXError(GLXBadRenderRequest);

+	}

+

+        if (entry.varsize) {

+            /* variable size command */

+            extra = (*entry.varsize)(pc + __GLX_RENDER_HDR_SIZE,

+				     client->swapped);

+            if (extra < 0) {

+                extra = 0;

+            }

+            if (cmdlen != __GLX_PAD(entry.bytes + extra)) {

+                return BadLength;

+            }

+        } else {

+            /* constant size command */

+            if (cmdlen != __GLX_PAD(entry.bytes)) {

+                return BadLength;

+            }

+        }

+	if (left < cmdlen) {

+	    return BadLength;

+	}

+

+	/*

+	** Skip over the header and execute the command.  We allow the

+	** caller to trash the command memory.  This is useful especially

+	** for things that require double alignment - they can just shift

+	** the data towards lower memory (trashing the header) by 4 bytes

+	** and achieve the required alignment.

+	*/

+	(*proc)(pc + __GLX_RENDER_HDR_SIZE);

+	pc += cmdlen;

+	left -= cmdlen;

+	commandsDone++;

+    }

+    __GLX_NOTE_UNFLUSHED_CMDS(glxc);

+    return Success;

+}

+

+

+/*

+** Execute a large rendering request (one that spans multiple X requests).

+*/

+int __glXDisp_RenderLarge(__GLXclientState *cl, GLbyte *pc)

+{

+    xGLXRenderLargeReq *req;

+    ClientPtr client= cl->client;

+    size_t dataBytes;

+    __GLXrenderLargeHeader *hdr;

+    struct glx_context *glxc;

+    int error;

+    CARD16 opcode;

+    __GLX_DECLARE_SWAP_VARIABLES;

+    

+    req = (xGLXRenderLargeReq *) pc;

+    if (client->swapped) {

+	__GLX_SWAP_SHORT(&req->length);

+	__GLX_SWAP_INT(&req->contextTag);

+	__GLX_SWAP_INT(&req->dataBytes);

+	__GLX_SWAP_SHORT(&req->requestNumber);

+	__GLX_SWAP_SHORT(&req->requestTotal);

+    }

+

+    glxc = __glXForceCurrent(cl, req->contextTag, &error);

+    if (!glxc) {

+	/* Reset in case this isn't 1st request. */

+	__glXResetLargeCommandStatus(cl);

+	return error;

+    }

+    dataBytes = req->dataBytes;

+

+    /*

+    ** Check the request length.

+    */

+    if ((req->length << 2) != __GLX_PAD(dataBytes) + sz_xGLXRenderLargeReq) {

+	client->errorValue = req->length;

+	/* Reset in case this isn't 1st request. */

+	__glXResetLargeCommandStatus(cl);

+	return BadLength;

+    }

+    pc += sz_xGLXRenderLargeReq;

+    

+    if (cl->largeCmdRequestsSoFar == 0) {

+	__GLXrenderSizeData entry;

+	int extra;

+	size_t cmdlen;

+	int err;

+

+	/*

+	** This is the first request of a multi request command.

+	** Make enough space in the buffer, then copy the entire request.

+	*/

+	if (req->requestNumber != 1) {

+	    client->errorValue = req->requestNumber;

+	    return __glXError(GLXBadLargeRequest);

+	}

+

+	hdr = (__GLXrenderLargeHeader *) pc;

+	if (client->swapped) {

+	    __GLX_SWAP_INT(&hdr->length);

+	    __GLX_SWAP_INT(&hdr->opcode);

+	}

+	cmdlen = hdr->length;

+	opcode = hdr->opcode;

+

+	/*

+	** Check for core opcodes and grab entry data.

+	*/

+	err = __glXGetProtocolSizeData(& Render_dispatch_info, opcode, & entry);

+	if (err < 0) {

+	    client->errorValue = opcode;

+	    return __glXError(GLXBadLargeRequest);

+	}

+

+	if (entry.varsize) {

+	    /*

+	    ** If it's a variable-size command (a command whose length must

+	    ** be computed from its parameters), all the parameters needed

+	    ** will be in the 1st request, so it's okay to do this.

+	    */

+	    extra = (*entry.varsize)(pc + __GLX_RENDER_LARGE_HDR_SIZE,

+				     client->swapped);

+	    if (extra < 0) {

+		extra = 0;

+	    }

+	    /* large command's header is 4 bytes longer, so add 4 */

+	    if (cmdlen != __GLX_PAD(entry.bytes + 4 + extra)) {

+		return BadLength;

+	    }

+	} else {

+	    /* constant size command */

+	    if (cmdlen != __GLX_PAD(entry.bytes + 4)) {

+		return BadLength;

+	    }

+	}

+	/*

+	** Make enough space in the buffer, then copy the entire request.

+	*/

+	if (cl->largeCmdBufSize < cmdlen) {

+	    if (!cl->largeCmdBuf) {

+		cl->largeCmdBuf = (GLbyte *) malloc(cmdlen);

+	    } else {

+		cl->largeCmdBuf = (GLbyte *) realloc(cl->largeCmdBuf, cmdlen);

+	    }

+	    if (!cl->largeCmdBuf) {

+		return BadAlloc;

+	    }

+	    cl->largeCmdBufSize = cmdlen;

+	}

+	memcpy(cl->largeCmdBuf, pc, dataBytes);

+

+	cl->largeCmdBytesSoFar = dataBytes;

+	cl->largeCmdBytesTotal = cmdlen;

+	cl->largeCmdRequestsSoFar = 1;

+	cl->largeCmdRequestsTotal = req->requestTotal;

+	return Success;

+	

+    } else {

+	/*

+	** We are receiving subsequent (i.e. not the first) requests of a

+	** multi request command.

+	*/

+

+	/*

+	** Check the request number and the total request count.

+	*/

+	if (req->requestNumber != cl->largeCmdRequestsSoFar + 1) {

+	    client->errorValue = req->requestNumber;

+	    __glXResetLargeCommandStatus(cl);

+	    return __glXError(GLXBadLargeRequest);

+	}

+	if (req->requestTotal != cl->largeCmdRequestsTotal) {

+	    client->errorValue = req->requestTotal;

+	    __glXResetLargeCommandStatus(cl);

+	    return __glXError(GLXBadLargeRequest);

+	}

+

+	/*

+	** Check that we didn't get too much data.

+	*/

+	if ((cl->largeCmdBytesSoFar + dataBytes) > cl->largeCmdBytesTotal) {

+	    client->errorValue = dataBytes;

+	    __glXResetLargeCommandStatus(cl);

+	    return __glXError(GLXBadLargeRequest);

+	}

+	memcpy(cl->largeCmdBuf + cl->largeCmdBytesSoFar, pc, dataBytes);

+	cl->largeCmdBytesSoFar += dataBytes;

+	cl->largeCmdRequestsSoFar++;

+

+	if (req->requestNumber == cl->largeCmdRequestsTotal) {

+	    __GLXdispatchRenderProcPtr proc;

+

+	    /*

+	    ** This is the last request; it must have enough bytes to complete

+	    ** the command.

+	    */

+	    /* NOTE: the two pad macros have been added below; they are needed

+	    ** because the client library pads the total byte count, but not

+	    ** the per-request byte counts.  The Protocol Encoding says the

+	    ** total byte count should not be padded, so a proposal will be 

+	    ** made to the ARB to relax the padding constraint on the total 

+	    ** byte count, thus preserving backward compatibility.  Meanwhile, 

+	    ** the padding done below fixes a bug that did not allow

+	    ** large commands of odd sizes to be accepted by the server.

+	    */

+	    if (__GLX_PAD(cl->largeCmdBytesSoFar) !=

+		__GLX_PAD(cl->largeCmdBytesTotal)) {

+		client->errorValue = dataBytes;

+		__glXResetLargeCommandStatus(cl);

+		return __glXError(GLXBadLargeRequest);

+	    }

+	    hdr = (__GLXrenderLargeHeader *) cl->largeCmdBuf;

+	    /*

+	    ** The opcode and length field in the header had already been

+	    ** swapped when the first request was received.

+	    **

+	    ** Use the opcode to index into the procedure table.

+	    */

+	    opcode = hdr->opcode;

+

+	    proc = (__GLXdispatchRenderProcPtr)

+	      __glXGetProtocolDecodeFunction(& Render_dispatch_info, opcode,

+					     client->swapped);

+	    if (proc == NULL) {

+		client->errorValue = opcode;

+		return __glXError(GLXBadLargeRequest);

+	    }

+

+	    /*

+	    ** Skip over the header and execute the command.

+	    */

+	    (*proc)(cl->largeCmdBuf + __GLX_RENDER_LARGE_HDR_SIZE);

+	    __GLX_NOTE_UNFLUSHED_CMDS(glxc);

+

+	    /*

+	    ** Reset for the next RenderLarge series.

+	    */

+	    __glXResetLargeCommandStatus(cl);

+	} else {

+	    /*

+	    ** This is neither the first nor the last request.

+	    */

+	}

+	return Success;

+    }

+}

+

+/************************************************************************/

+

+/*

+** No support is provided for the vendor-private requests other than

+** allocating the entry points in the dispatch table.

+*/

+

+int __glXDisp_VendorPrivate(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;

+    GLint vendorcode = req->vendorCode;

+    __GLXdispatchVendorPrivProcPtr proc;

+

+    REQUEST_AT_LEAST_SIZE(xGLXVendorPrivateReq);

+

+    proc = (__GLXdispatchVendorPrivProcPtr)

+      __glXGetProtocolDecodeFunction(& VendorPriv_dispatch_info,

+				     vendorcode, 0);

+    if (proc != NULL) {

+	(*proc)(cl, (GLbyte*)req);

+	return Success;

+    }

+

+    cl->client->errorValue = req->vendorCode;

+    return __glXError(GLXUnsupportedPrivateRequest);

+}

+

+int __glXDisp_VendorPrivateWithReply(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;

+    GLint vendorcode = req->vendorCode;

+    __GLXdispatchVendorPrivProcPtr proc;

+

+    REQUEST_AT_LEAST_SIZE(xGLXVendorPrivateReq);

+

+    proc = (__GLXdispatchVendorPrivProcPtr)

+      __glXGetProtocolDecodeFunction(& VendorPriv_dispatch_info,

+				     vendorcode, 0);

+    if (proc != NULL) {

+	return (*proc)(cl, (GLbyte*)req);

+    }

+

+    cl->client->errorValue = vendorcode;

+    return __glXError(GLXUnsupportedPrivateRequest);

+}

+

+int __glXDisp_QueryExtensionsString(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXQueryExtensionsStringReq *req = (xGLXQueryExtensionsStringReq *) pc;

+    xGLXQueryExtensionsStringReply reply;

+    __GLXscreen *pGlxScreen;

+    size_t n, length;

+    char *buf;

+    int err;

+

+    REQUEST_SIZE_MATCH(xGLXQueryExtensionsStringReq);

+

+    if (!validGlxScreen(client, req->screen, &pGlxScreen, &err))

+	return err;

+

+    n = strlen(pGlxScreen->GLXextensions) + 1;

+    length = __GLX_PAD(n) >> 2;

+    reply.type = X_Reply;

+    reply.sequenceNumber = client->sequence;

+    reply.length = length;

+    reply.n = n;

+

+    /* Allocate buffer to make sure it's a multiple of 4 bytes big.*/

+    buf = (char *) malloc(length << 2);

+    if (buf == NULL)

+        return BadAlloc;

+    memcpy(buf, pGlxScreen->GLXextensions, n);

+

+    if (client->swapped) {

+        glxSwapQueryExtensionsStringReply(client, &reply, buf);

+    } else {

+        WriteToClient(client, sz_xGLXQueryExtensionsStringReply,(char *)&reply);

+        WriteToClient(client, (int)(length << 2), (char *)buf);

+    }

+

+    free(buf);

+    return Success;

+}

+

+int __glXDisp_QueryServerString(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXQueryServerStringReq *req = (xGLXQueryServerStringReq *) pc;

+    xGLXQueryServerStringReply reply;

+    size_t n, length;

+    const char *ptr;

+    char *buf;

+    __GLXscreen *pGlxScreen;

+    int err;

+    char ver_str[16];

+

+    REQUEST_SIZE_MATCH(xGLXQueryServerStringReq);

+

+    if (!validGlxScreen(client, req->screen, &pGlxScreen, &err))

+	return err;

+

+    switch(req->name) {

+	case GLX_VENDOR:

+	    ptr = pGlxScreen->GLXvendor;

+	    break;

+	case GLX_VERSION:

+	    /* Return to the server version rather than the screen version

+	     * to prevent confusion when they do not match.

+	     */

+	    snprintf(ver_str, 16, "%d.%d", glxMajorVersion, glxMinorVersion);

+	    ptr = ver_str;

+	    break;

+	case GLX_EXTENSIONS:

+	    ptr = pGlxScreen->GLXextensions;

+	    break;

+	default:

+	    return BadValue; 

+    }

+

+    n = strlen(ptr) + 1;

+    length = __GLX_PAD(n) >> 2;

+    reply.type = X_Reply;

+    reply.sequenceNumber = client->sequence;

+    reply.length = length;

+    reply.n = n;

+

+    buf = (char *) malloc(length << 2);

+    if (buf == NULL) {

+        return BadAlloc;

+    }

+    memcpy(buf, ptr, n);

+

+    if (client->swapped) {

+        glxSwapQueryServerStringReply(client, &reply, buf);

+    } else {

+        WriteToClient(client, sz_xGLXQueryServerStringReply, (char *)&reply);

+        WriteToClient(client, (int)(length << 2), buf);

+    }

+

+    free(buf);

+    return Success;

+}

+

+int __glXDisp_ClientInfo(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXClientInfoReq *req = (xGLXClientInfoReq *) pc;

+    const char *buf;

+   

+    REQUEST_AT_LEAST_SIZE(xGLXClientInfoReq);

+

+    buf = (const char *)(req+1);

+    if (!memchr(buf, 0, (client->req_len << 2) - sizeof(xGLXClientInfoReq)))

+	return BadLength;

+

+    cl->GLClientmajorVersion = req->major;

+    cl->GLClientminorVersion = req->minor;

+    free(cl->GLClientextensions);

+    cl->GLClientextensions = strdup(buf);

+

+    return Success;

+}

diff --git a/xorg-server/glx/glxcmdsswap.c b/xorg-server/glx/glxcmdsswap.c
index f053b1ad5..4725cb788 100644
--- a/xorg-server/glx/glxcmdsswap.c
+++ b/xorg-server/glx/glxcmdsswap.c
@@ -1,920 +1,926 @@
-/*
- * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
- * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice including the dates of first publication and
- * either this permission notice or a reference to
- * http://oss.sgi.com/projects/FreeB/
- * shall be included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
- * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- * Except as contained in this notice, the name of Silicon Graphics, Inc.
- * shall not be used in advertising or otherwise to promote the sale, use or
- * other dealings in this Software without prior written authorization from
- * Silicon Graphics, Inc.
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#else
-
-#include "glheader.h"
-
-#endif
-
-#include <string.h>
-#include "glxserver.h"
-#include "glxutil.h"
-#include <GL/glxtokens.h>
-#include <unpack.h>
-#include <pixmapstr.h>
-#include <windowstr.h>
-#include "glxext.h"
-#include "GL/gl.h"
-#include "glapitable.h"
-#include "glapi.h"
-#include "glthread.h"
-#include "dispatch.h"
-#include "indirect_dispatch.h"
-#include "indirect_table.h"
-#include "indirect_util.h"
-
-
-/************************************************************************/
-
-/*
-** Byteswapping versions of GLX commands.  In most cases they just swap
-** the incoming arguments and then call the unswapped routine.  For commands
-** that have replies, a separate swapping routine for the reply is provided;
-** it is called at the end of the unswapped routine.
-*/
-
-int __glXDispSwap_CreateContext(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreateContextReq *req = (xGLXCreateContextReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXCreateContextReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->context);
-    __GLX_SWAP_INT(&req->visual);
-    __GLX_SWAP_INT(&req->screen);
-    __GLX_SWAP_INT(&req->shareList);
-
-    return __glXDisp_CreateContext(cl, pc);
-}
-
-int __glXDispSwap_CreateNewContext(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreateNewContextReq *req = (xGLXCreateNewContextReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXCreateNewContextReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->context);
-    __GLX_SWAP_INT(&req->fbconfig);
-    __GLX_SWAP_INT(&req->screen);
-    __GLX_SWAP_INT(&req->renderType);
-    __GLX_SWAP_INT(&req->shareList);
-
-    return __glXDisp_CreateNewContext(cl, pc);
-}
-
-int __glXDispSwap_CreateContextWithConfigSGIX(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreateContextWithConfigSGIXReq *req =
-	(xGLXCreateContextWithConfigSGIXReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXCreateContextWithConfigSGIXReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->context);
-    __GLX_SWAP_INT(&req->fbconfig);
-    __GLX_SWAP_INT(&req->screen);
-    __GLX_SWAP_INT(&req->renderType);
-    __GLX_SWAP_INT(&req->shareList);
-
-    return __glXDisp_CreateContextWithConfigSGIX(cl, pc);
-}
-
-int __glXDispSwap_DestroyContext(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXDestroyContextReq *req = (xGLXDestroyContextReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXDestroyContextReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->context);
-
-    return __glXDisp_DestroyContext(cl, pc);
-}
-
-int __glXDispSwap_MakeCurrent(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXMakeCurrentReq *req = (xGLXMakeCurrentReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXMakeCurrentReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->drawable);
-    __GLX_SWAP_INT(&req->context);
-    __GLX_SWAP_INT(&req->oldContextTag);
-
-    return __glXDisp_MakeCurrent(cl, pc);
-}
-
-int __glXDispSwap_MakeContextCurrent(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXMakeContextCurrentReq *req = (xGLXMakeContextCurrentReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXMakeContextCurrentReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->drawable);
-    __GLX_SWAP_INT(&req->readdrawable);
-    __GLX_SWAP_INT(&req->context);
-    __GLX_SWAP_INT(&req->oldContextTag);
-
-    return __glXDisp_MakeContextCurrent(cl, pc);
-}
-
-int __glXDispSwap_MakeCurrentReadSGI(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXMakeCurrentReadSGIReq *req = (xGLXMakeCurrentReadSGIReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXMakeCurrentReadSGIReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->drawable);
-    __GLX_SWAP_INT(&req->readable);
-    __GLX_SWAP_INT(&req->context);
-    __GLX_SWAP_INT(&req->oldContextTag);
-
-    return __glXDisp_MakeCurrentReadSGI(cl, pc);
-}
-
-int __glXDispSwap_IsDirect(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXIsDirectReq *req = (xGLXIsDirectReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXIsDirectReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->context);
-
-    return __glXDisp_IsDirect(cl, pc);
-}
-
-int __glXDispSwap_QueryVersion(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXQueryVersionReq *req = (xGLXQueryVersionReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXQueryVersionReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->majorVersion);
-    __GLX_SWAP_INT(&req->minorVersion);
-
-    return __glXDisp_QueryVersion(cl, pc);
-}
-
-int __glXDispSwap_WaitGL(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXWaitGLReq *req = (xGLXWaitGLReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXWaitGLReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->contextTag);
-
-    return __glXDisp_WaitGL(cl, pc);
-}
-
-int __glXDispSwap_WaitX(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXWaitXReq *req = (xGLXWaitXReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXWaitXReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->contextTag);
-
-    return __glXDisp_WaitX(cl, pc);
-}
-
-int __glXDispSwap_CopyContext(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCopyContextReq *req = (xGLXCopyContextReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXCopyContextReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->source);
-    __GLX_SWAP_INT(&req->dest);
-    __GLX_SWAP_INT(&req->mask);
-
-    return __glXDisp_CopyContext(cl, pc);
-}
-
-int __glXDispSwap_GetVisualConfigs(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXGetVisualConfigsReq *req = (xGLXGetVisualConfigsReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXGetVisualConfigsReq);
-
-    __GLX_SWAP_INT(&req->screen);
-    return __glXDisp_GetVisualConfigs(cl, pc);
-}
-
-int __glXDispSwap_GetFBConfigs(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXGetFBConfigsReq *req = (xGLXGetFBConfigsReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXGetFBConfigsReq);
-
-    __GLX_SWAP_INT(&req->screen);
-    return __glXDisp_GetFBConfigs(cl, pc);
-}
-
-int __glXDispSwap_GetFBConfigsSGIX(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXGetFBConfigsSGIXReq *req = (xGLXGetFBConfigsSGIXReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXGetFBConfigsSGIXReq);
-
-    __GLX_SWAP_INT(&req->screen);
-    return __glXDisp_GetFBConfigsSGIX(cl, pc);
-}
-
-int __glXDispSwap_CreateGLXPixmap(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreateGLXPixmapReq *req = (xGLXCreateGLXPixmapReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXCreateGLXPixmapReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->screen);
-    __GLX_SWAP_INT(&req->visual);
-    __GLX_SWAP_INT(&req->pixmap);
-    __GLX_SWAP_INT(&req->glxpixmap);
-
-    return __glXDisp_CreateGLXPixmap(cl, pc);
-}
-
-int __glXDispSwap_CreatePixmap(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreatePixmapReq *req = (xGLXCreatePixmapReq *) pc;
-    CARD32 *attribs;
-    __GLX_DECLARE_SWAP_VARIABLES;
-    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
-
-    REQUEST_AT_LEAST_SIZE(xGLXCreatePixmapReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->screen);
-    __GLX_SWAP_INT(&req->fbconfig);
-    __GLX_SWAP_INT(&req->pixmap);
-    __GLX_SWAP_INT(&req->glxpixmap);
-    __GLX_SWAP_INT(&req->numAttribs);
-
-    if (req->numAttribs > (UINT32_MAX >> 3)) {
-	client->errorValue = req->numAttribs;
-	return BadValue;
-    }
-    REQUEST_FIXED_SIZE(xGLXCreatePixmapReq, req->numAttribs << 3);
-    attribs = (CARD32*)(req + 1);
-    __GLX_SWAP_INT_ARRAY(attribs, req->numAttribs << 1);
-
-    return __glXDisp_CreatePixmap(cl, pc);
-}
-
-int __glXDispSwap_CreateGLXPixmapWithConfigSGIX(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreateGLXPixmapWithConfigSGIXReq *req = 
-	(xGLXCreateGLXPixmapWithConfigSGIXReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXCreateGLXPixmapWithConfigSGIXReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->screen);
-    __GLX_SWAP_INT(&req->fbconfig);
-    __GLX_SWAP_INT(&req->pixmap);
-    __GLX_SWAP_INT(&req->glxpixmap);
-
-    return __glXDisp_CreateGLXPixmapWithConfigSGIX(cl, pc);
-}
-
-int __glXDispSwap_DestroyGLXPixmap(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXDestroyGLXPixmapReq *req = (xGLXDestroyGLXPixmapReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXDestroyGLXPixmapReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->glxpixmap);
-
-    return __glXDisp_DestroyGLXPixmap(cl, pc);
-}
-
-int __glXDispSwap_DestroyPixmap(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXDestroyGLXPixmapReq *req = (xGLXDestroyGLXPixmapReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXDestroyGLXPixmapReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->glxpixmap);
-
-    return __glXDisp_DestroyGLXPixmap(cl, pc);
-}
-
-int __glXDispSwap_QueryContext(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXQueryContextReq *req = (xGLXQueryContextReq *) pc;    
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXQueryContextReq);
-
-    __GLX_SWAP_INT(&req->context);
-
-    return __glXDisp_QueryContext(cl, pc);
-}
-
-int __glXDispSwap_CreatePbuffer(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreatePbufferReq *req = (xGLXCreatePbufferReq *) pc;    
-    __GLX_DECLARE_SWAP_VARIABLES;
-    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
-    CARD32 *attribs;
-
-    REQUEST_AT_LEAST_SIZE(xGLXCreatePbufferReq);
-
-    __GLX_SWAP_INT(&req->screen);
-    __GLX_SWAP_INT(&req->fbconfig);
-    __GLX_SWAP_INT(&req->pbuffer);
-    __GLX_SWAP_INT(&req->numAttribs);
-
-    if (req->numAttribs > (UINT32_MAX >> 3)) {
-	client->errorValue = req->numAttribs;
-	return BadValue;
-    }
-    REQUEST_FIXED_SIZE(xGLXCreatePbufferReq, req->numAttribs << 3);
-    attribs = (CARD32*)(req + 1);
-    __GLX_SWAP_INT_ARRAY(attribs, req->numAttribs << 1);
-
-    return __glXDisp_CreatePbuffer(cl, pc);
-}
-
-int __glXDispSwap_CreateGLXPbufferSGIX(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreateGLXPbufferSGIXReq *req = (xGLXCreateGLXPbufferSGIXReq *) pc;    
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXCreateGLXPbufferSGIXReq);
-
-    __GLX_SWAP_INT(&req->screen);
-    __GLX_SWAP_INT(&req->fbconfig);
-    __GLX_SWAP_INT(&req->pbuffer);
-    __GLX_SWAP_INT(&req->width);
-    __GLX_SWAP_INT(&req->height);
-
-    return __glXDisp_CreateGLXPbufferSGIX(cl, pc);
-}
-
-int __glXDispSwap_DestroyPbuffer(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXDestroyPbufferReq *req = (xGLXDestroyPbufferReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXDestroyPbufferReq);
-
-    __GLX_SWAP_INT(&req->pbuffer);
-
-    return __glXDisp_DestroyPbuffer(cl, pc);
-}
-
-int __glXDispSwap_DestroyGLXPbufferSGIX(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXDestroyGLXPbufferSGIXReq *req = (xGLXDestroyGLXPbufferSGIXReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXDestroyGLXPbufferSGIXReq);
-
-    __GLX_SWAP_INT(&req->pbuffer);
-
-    return __glXDisp_DestroyGLXPbufferSGIX(cl, pc);
-}
-
-int __glXDispSwap_ChangeDrawableAttributes(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXChangeDrawableAttributesReq *req =
-	(xGLXChangeDrawableAttributesReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
-    CARD32 *attribs;
-
-    REQUEST_AT_LEAST_SIZE(xGLXChangeDrawableAttributesReq);
-
-    __GLX_SWAP_INT(&req->drawable);
-    __GLX_SWAP_INT(&req->numAttribs);
-
-    if (req->numAttribs > (UINT32_MAX >> 3)) {
-	client->errorValue = req->numAttribs;
-	return BadValue;
-    }
-    REQUEST_FIXED_SIZE(xGLXChangeDrawableAttributesReq, req->numAttribs << 3);
-    attribs = (CARD32*)(req + 1);
-    __GLX_SWAP_INT_ARRAY(attribs, req->numAttribs << 1);
-
-    return __glXDisp_ChangeDrawableAttributes(cl, pc);
-}
-
-int __glXDispSwap_ChangeDrawableAttributesSGIX(__GLXclientState *cl,
-					       GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXChangeDrawableAttributesSGIXReq *req =
-	(xGLXChangeDrawableAttributesSGIXReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
-    CARD32 *attribs;
-
-    REQUEST_AT_LEAST_SIZE(xGLXChangeDrawableAttributesSGIXReq);
-
-    __GLX_SWAP_INT(&req->drawable);
-    __GLX_SWAP_INT(&req->numAttribs);
-
-    if (req->numAttribs > (UINT32_MAX >> 3)) {
-	client->errorValue = req->numAttribs;
-	return BadValue;
-    }
-    REQUEST_FIXED_SIZE(xGLXChangeDrawableAttributesSGIXReq, req->numAttribs << 3);
-    attribs = (CARD32*)(req + 1);
-    __GLX_SWAP_INT_ARRAY(attribs, req->numAttribs << 1);
-
-    return __glXDisp_ChangeDrawableAttributesSGIX(cl, pc);
-}
-
-int __glXDispSwap_CreateWindow(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXCreateWindowReq *req = (xGLXCreateWindowReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
-    CARD32 *attribs;
-
-    REQUEST_AT_LEAST_SIZE(xGLXCreateWindowReq);
-
-    __GLX_SWAP_INT(&req->screen);
-    __GLX_SWAP_INT(&req->fbconfig);
-    __GLX_SWAP_INT(&req->window);
-    __GLX_SWAP_INT(&req->glxwindow);
-    __GLX_SWAP_INT(&req->numAttribs);
-
-    if (req->numAttribs > (UINT32_MAX >> 3)) {
-	client->errorValue = req->numAttribs;
-	return BadValue;
-    }
-    REQUEST_FIXED_SIZE(xGLXCreateWindowReq, req->numAttribs << 3);
-    attribs = (CARD32*)(req + 1);
-    __GLX_SWAP_INT_ARRAY(attribs, req->numAttribs << 1);
-
-    return __glXDisp_CreateWindow(cl, pc);
-}
-
-int __glXDispSwap_DestroyWindow(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXDestroyWindowReq *req = (xGLXDestroyWindowReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXDestroyWindowReq);
-
-    __GLX_SWAP_INT(&req->glxwindow);
-
-    return __glXDisp_DestroyWindow(cl, pc);
-}
-
-int __glXDispSwap_SwapBuffers(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXSwapBuffersReq *req = (xGLXSwapBuffersReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXSwapBuffersReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->contextTag);
-    __GLX_SWAP_INT(&req->drawable);
-
-    return __glXDisp_SwapBuffers(cl, pc);
-}
-
-int __glXDispSwap_UseXFont(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXUseXFontReq *req = (xGLXUseXFontReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXUseXFontReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->contextTag);
-    __GLX_SWAP_INT(&req->font);
-    __GLX_SWAP_INT(&req->first);
-    __GLX_SWAP_INT(&req->count);
-    __GLX_SWAP_INT(&req->listBase);
-
-    return __glXDisp_UseXFont(cl, pc);
-}
-
-
-int __glXDispSwap_QueryExtensionsString(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXQueryExtensionsStringReq *req = (xGLXQueryExtensionsStringReq *)pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXQueryExtensionsStringReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->screen);
-
-    return __glXDisp_QueryExtensionsString(cl, pc);
-}
-
-int __glXDispSwap_QueryServerString(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXQueryServerStringReq *req = (xGLXQueryServerStringReq *)pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXQueryServerStringReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->screen);
-    __GLX_SWAP_INT(&req->name);
-
-    return __glXDisp_QueryServerString(cl, pc);
-}
-
-int __glXDispSwap_ClientInfo(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXClientInfoReq *req = (xGLXClientInfoReq *)pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_AT_LEAST_SIZE(xGLXClientInfoReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->major);
-    __GLX_SWAP_INT(&req->minor);
-    __GLX_SWAP_INT(&req->numbytes);
-
-    return __glXDisp_ClientInfo(cl, pc);
-}
-
-int __glXDispSwap_QueryContextInfoEXT(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXQueryContextInfoEXTReq *req = (xGLXQueryContextInfoEXTReq *) pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXQueryContextInfoEXTReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->context);
-
-    return __glXDisp_QueryContextInfoEXT(cl, pc);
-}
-
-int __glXDispSwap_BindTexImageEXT(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
-    GLXDrawable		 *drawId;
-    int			 *buffer;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 8);
-
-    pc += __GLX_VENDPRIV_HDR_SIZE;
-
-    drawId = ((GLXDrawable *) (pc));
-    buffer = ((int *)	      (pc + 4));
-    
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->contextTag);
-    __GLX_SWAP_INT(drawId);
-    __GLX_SWAP_INT(buffer);
-
-    return __glXDisp_BindTexImageEXT(cl, (GLbyte *)pc);
-}
-
-int __glXDispSwap_ReleaseTexImageEXT(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
-    GLXDrawable		 *drawId;
-    int			 *buffer;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 8);
-
-    pc += __GLX_VENDPRIV_HDR_SIZE;
-
-    drawId = ((GLXDrawable *) (pc));
-    buffer = ((int *)	      (pc + 4));
-    
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->contextTag);
-    __GLX_SWAP_INT(drawId);
-    __GLX_SWAP_INT(buffer);
-
-    return __glXDisp_ReleaseTexImageEXT(cl, (GLbyte *)pc);
-}
-
-int __glXDispSwap_CopySubBufferMESA(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
-    GLXDrawable		 *drawId;
-    int			 *buffer;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 20);
-
-    (void) drawId;
-    (void) buffer;
-
-    pc += __GLX_VENDPRIV_HDR_SIZE;
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->contextTag);
-    __GLX_SWAP_INT(pc);
-    __GLX_SWAP_INT(pc + 4);
-    __GLX_SWAP_INT(pc + 8);
-    __GLX_SWAP_INT(pc + 12);
-    __GLX_SWAP_INT(pc + 16);
-
-    return __glXDisp_CopySubBufferMESA(cl, pc);
-
-}
-
-int __glXDispSwap_GetDrawableAttributesSGIX(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXVendorPrivateWithReplyReq *req = (xGLXVendorPrivateWithReplyReq *)pc;
-    CARD32 *data;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXGetDrawableAttributesSGIXReq);
-
-    data = (CARD32 *) (req + 1);
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->contextTag);
-    __GLX_SWAP_INT(data);
-
-    return __glXDisp_GetDrawableAttributesSGIX(cl, pc);
-}
-
-int __glXDispSwap_GetDrawableAttributes(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXGetDrawableAttributesReq *req = (xGLXGetDrawableAttributesReq *)pc;
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    REQUEST_SIZE_MATCH(xGLXGetDrawableAttributesReq);
-
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->drawable);
-
-    return __glXDisp_GetDrawableAttributes(cl, pc);
-}
-
-
-/************************************************************************/
-
-/*
-** Swap replies.
-*/
-
-void __glXSwapMakeCurrentReply(ClientPtr client, xGLXMakeCurrentReply *reply)
-{
-    __GLX_DECLARE_SWAP_VARIABLES;
-    __GLX_SWAP_SHORT(&reply->sequenceNumber);
-    __GLX_SWAP_INT(&reply->length);
-    __GLX_SWAP_INT(&reply->contextTag);
-    WriteToClient(client, sz_xGLXMakeCurrentReply, (char *)reply);
-}
-
-void __glXSwapIsDirectReply(ClientPtr client, xGLXIsDirectReply *reply)
-{
-    __GLX_DECLARE_SWAP_VARIABLES;
-    __GLX_SWAP_SHORT(&reply->sequenceNumber);
-    __GLX_SWAP_INT(&reply->length);
-    WriteToClient(client, sz_xGLXIsDirectReply, (char *)reply);
-}
-
-void __glXSwapQueryVersionReply(ClientPtr client, xGLXQueryVersionReply *reply)
-{
-    __GLX_DECLARE_SWAP_VARIABLES;
-    __GLX_SWAP_SHORT(&reply->sequenceNumber);
-    __GLX_SWAP_INT(&reply->length);
-    __GLX_SWAP_INT(&reply->majorVersion);
-    __GLX_SWAP_INT(&reply->minorVersion);
-    WriteToClient(client, sz_xGLXQueryVersionReply, (char *)reply);
-}
-
-void glxSwapQueryExtensionsStringReply(ClientPtr client,
-				       xGLXQueryExtensionsStringReply *reply, char *buf)
-{
-    int length = reply->length;
-    __GLX_DECLARE_SWAP_VARIABLES;
-    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
-    __GLX_SWAP_SHORT(&reply->sequenceNumber);
-    __GLX_SWAP_INT(&reply->length);
-    __GLX_SWAP_INT(&reply->n);
-    WriteToClient(client, sz_xGLXQueryExtensionsStringReply, (char *)reply);
-    __GLX_SWAP_INT_ARRAY((int *)buf, length);
-    WriteToClient(client, length << 2, buf);
-}
-
-void glxSwapQueryServerStringReply(ClientPtr client,
-				   xGLXQueryServerStringReply *reply, char *buf)
-{
-    int length = reply->length;
-    __GLX_DECLARE_SWAP_VARIABLES;
-    __GLX_SWAP_SHORT(&reply->sequenceNumber);
-    __GLX_SWAP_INT(&reply->length);
-    __GLX_SWAP_INT(&reply->n);
-    WriteToClient(client, sz_xGLXQueryServerStringReply, (char *)reply);
-    /** no swap is needed for an array of chars **/
-    /* __GLX_SWAP_INT_ARRAY((int *)buf, length); */
-    WriteToClient(client, length << 2, buf);
-}
-
-void __glXSwapQueryContextInfoEXTReply(ClientPtr client, xGLXQueryContextInfoEXTReply *reply, int *buf)
-{
-    int length = reply->length;
-    __GLX_DECLARE_SWAP_VARIABLES;
-    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
-    __GLX_SWAP_SHORT(&reply->sequenceNumber);
-    __GLX_SWAP_INT(&reply->length);
-    __GLX_SWAP_INT(&reply->n);
-    WriteToClient(client, sz_xGLXQueryContextInfoEXTReply, (char *)reply);
-    __GLX_SWAP_INT_ARRAY((int *)buf, length);
-    WriteToClient(client, length << 2, (char *)buf);
-}
-
-void __glXSwapGetDrawableAttributesReply(ClientPtr client,
-					 xGLXGetDrawableAttributesReply *reply, CARD32 *buf)
-{
-    int length = reply->length;
-    __GLX_DECLARE_SWAP_VARIABLES;
-    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
-    __GLX_SWAP_SHORT(&reply->sequenceNumber);
-    __GLX_SWAP_INT(&reply->length);
-    __GLX_SWAP_INT(&reply->numAttribs);
-    WriteToClient(client, sz_xGLXGetDrawableAttributesReply, (char *)reply);
-    __GLX_SWAP_INT_ARRAY((int *)buf, length);
-    WriteToClient(client, length << 2, (char *)buf);
-}
-
-/************************************************************************/
-
-/*
-** Render and Renderlarge are not in the GLX API.  They are used by the GLX
-** client library to send batches of GL rendering commands.
-*/
-
-int __glXDispSwap_Render(__GLXclientState *cl, GLbyte *pc)
-{
-    return __glXDisp_Render(cl, pc);
-}
-
-/*
-** Execute a large rendering request (one that spans multiple X requests).
-*/
-int __glXDispSwap_RenderLarge(__GLXclientState *cl, GLbyte *pc)
-{
-    return __glXDisp_RenderLarge(cl, pc);
-}
-
-/************************************************************************/
-
-/*
-** No support is provided for the vendor-private requests other than
-** allocating these entry points in the dispatch table.
-*/
-
-int __glXDispSwap_VendorPrivate(__GLXclientState *cl, GLbyte *pc)
-{
-    xGLXVendorPrivateReq *req;
-    GLint vendorcode;
-    __GLXdispatchVendorPrivProcPtr proc;
-
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    req = (xGLXVendorPrivateReq *) pc;
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->vendorCode);
-
-    vendorcode = req->vendorCode;
-
-    proc = (__GLXdispatchVendorPrivProcPtr)
-      __glXGetProtocolDecodeFunction(& VendorPriv_dispatch_info,
-				     vendorcode, 1);
-    if (proc != NULL) {
-	(*proc)(cl, (GLbyte*)req);
-	return Success;
-    }
-
-    cl->client->errorValue = req->vendorCode;
-    return __glXError(GLXUnsupportedPrivateRequest);
-}
-
-
-int __glXDispSwap_VendorPrivateWithReply(__GLXclientState *cl, GLbyte *pc)
-{
-    xGLXVendorPrivateWithReplyReq *req;
-    GLint vendorcode;
-    __GLXdispatchVendorPrivProcPtr proc;
-
-    __GLX_DECLARE_SWAP_VARIABLES;
-
-    req = (xGLXVendorPrivateWithReplyReq *) pc;
-    __GLX_SWAP_SHORT(&req->length);
-    __GLX_SWAP_INT(&req->vendorCode);
-
-    vendorcode = req->vendorCode;
-
-    proc = (__GLXdispatchVendorPrivProcPtr)
-      __glXGetProtocolDecodeFunction(& VendorPriv_dispatch_info,
-				     vendorcode, 1);
-    if (proc != NULL) {
-	return (*proc)(cl, (GLbyte*)req);
-    }
-
-    cl->client->errorValue = req->vendorCode;
-    return __glXError(GLXUnsupportedPrivateRequest);
-}
+/*

+ * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)

+ * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice including the dates of first publication and

+ * either this permission notice or a reference to

+ * http://oss.sgi.com/projects/FreeB/

+ * shall be included in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

+ * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF

+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

+ * SOFTWARE.

+ *

+ * Except as contained in this notice, the name of Silicon Graphics, Inc.

+ * shall not be used in advertising or otherwise to promote the sale, use or

+ * other dealings in this Software without prior written authorization from

+ * Silicon Graphics, Inc.

+ */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#else

+

+#include "glheader.h"

+

+#endif

+

+#include <string.h>

+#include "glxserver.h"

+#include "glxutil.h"

+#include <GL/glxtokens.h>

+#include <unpack.h>

+#include <pixmapstr.h>

+#include <windowstr.h>

+#include "glxext.h"

+#include "GL/gl.h"

+#include "glapitable.h"

+#include "glapi.h"

+#include "glthread.h"

+#include "dispatch.h"

+#include "indirect_dispatch.h"

+#include "indirect_table.h"

+#include "indirect_util.h"

+

+

+/************************************************************************/

+

+/*

+** Byteswapping versions of GLX commands.  In most cases they just swap

+** the incoming arguments and then call the unswapped routine.  For commands

+** that have replies, a separate swapping routine for the reply is provided;

+** it is called at the end of the unswapped routine.

+*/

+

+int __glXDispSwap_CreateContext(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreateContextReq *req = (xGLXCreateContextReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXCreateContextReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->context);

+    __GLX_SWAP_INT(&req->visual);

+    __GLX_SWAP_INT(&req->screen);

+    __GLX_SWAP_INT(&req->shareList);

+

+    return __glXDisp_CreateContext(cl, pc);

+}

+

+int __glXDispSwap_CreateNewContext(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreateNewContextReq *req = (xGLXCreateNewContextReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXCreateNewContextReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->context);

+    __GLX_SWAP_INT(&req->fbconfig);

+    __GLX_SWAP_INT(&req->screen);

+    __GLX_SWAP_INT(&req->renderType);

+    __GLX_SWAP_INT(&req->shareList);

+

+    return __glXDisp_CreateNewContext(cl, pc);

+}

+

+int __glXDispSwap_CreateContextWithConfigSGIX(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreateContextWithConfigSGIXReq *req =

+	(xGLXCreateContextWithConfigSGIXReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXCreateContextWithConfigSGIXReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->context);

+    __GLX_SWAP_INT(&req->fbconfig);

+    __GLX_SWAP_INT(&req->screen);

+    __GLX_SWAP_INT(&req->renderType);

+    __GLX_SWAP_INT(&req->shareList);

+

+    return __glXDisp_CreateContextWithConfigSGIX(cl, pc);

+}

+

+int __glXDispSwap_DestroyContext(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXDestroyContextReq *req = (xGLXDestroyContextReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXDestroyContextReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->context);

+

+    return __glXDisp_DestroyContext(cl, pc);

+}

+

+int __glXDispSwap_MakeCurrent(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXMakeCurrentReq *req = (xGLXMakeCurrentReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXMakeCurrentReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->drawable);

+    __GLX_SWAP_INT(&req->context);

+    __GLX_SWAP_INT(&req->oldContextTag);

+

+    return __glXDisp_MakeCurrent(cl, pc);

+}

+

+int __glXDispSwap_MakeContextCurrent(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXMakeContextCurrentReq *req = (xGLXMakeContextCurrentReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXMakeContextCurrentReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->drawable);

+    __GLX_SWAP_INT(&req->readdrawable);

+    __GLX_SWAP_INT(&req->context);

+    __GLX_SWAP_INT(&req->oldContextTag);

+

+    return __glXDisp_MakeContextCurrent(cl, pc);

+}

+

+int __glXDispSwap_MakeCurrentReadSGI(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXMakeCurrentReadSGIReq *req = (xGLXMakeCurrentReadSGIReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXMakeCurrentReadSGIReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->drawable);

+    __GLX_SWAP_INT(&req->readable);

+    __GLX_SWAP_INT(&req->context);

+    __GLX_SWAP_INT(&req->oldContextTag);

+

+    return __glXDisp_MakeCurrentReadSGI(cl, pc);

+}

+

+int __glXDispSwap_IsDirect(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXIsDirectReq *req = (xGLXIsDirectReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXIsDirectReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->context);

+

+    return __glXDisp_IsDirect(cl, pc);

+}

+

+int __glXDispSwap_QueryVersion(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXQueryVersionReq *req = (xGLXQueryVersionReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXQueryVersionReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->majorVersion);

+    __GLX_SWAP_INT(&req->minorVersion);

+

+    return __glXDisp_QueryVersion(cl, pc);

+}

+

+int __glXDispSwap_WaitGL(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXWaitGLReq *req = (xGLXWaitGLReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXWaitGLReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->contextTag);

+

+    return __glXDisp_WaitGL(cl, pc);

+}

+

+int __glXDispSwap_WaitX(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXWaitXReq *req = (xGLXWaitXReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXWaitXReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->contextTag);

+

+    return __glXDisp_WaitX(cl, pc);

+}

+

+int __glXDispSwap_CopyContext(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCopyContextReq *req = (xGLXCopyContextReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXCopyContextReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->source);

+    __GLX_SWAP_INT(&req->dest);

+    __GLX_SWAP_INT(&req->mask);

+

+    return __glXDisp_CopyContext(cl, pc);

+}

+

+int __glXDispSwap_GetVisualConfigs(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXGetVisualConfigsReq *req = (xGLXGetVisualConfigsReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXGetVisualConfigsReq);

+

+    __GLX_SWAP_INT(&req->screen);

+    return __glXDisp_GetVisualConfigs(cl, pc);

+}

+

+int __glXDispSwap_GetFBConfigs(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXGetFBConfigsReq *req = (xGLXGetFBConfigsReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXGetFBConfigsReq);

+

+    __GLX_SWAP_INT(&req->screen);

+    return __glXDisp_GetFBConfigs(cl, pc);

+}

+

+int __glXDispSwap_GetFBConfigsSGIX(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXGetFBConfigsSGIXReq *req = (xGLXGetFBConfigsSGIXReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_AT_LEAST_SIZE(xGLXGetFBConfigsSGIXReq);

+

+    __GLX_SWAP_INT(&req->screen);

+    return __glXDisp_GetFBConfigsSGIX(cl, pc);

+}

+

+int __glXDispSwap_CreateGLXPixmap(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreateGLXPixmapReq *req = (xGLXCreateGLXPixmapReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXCreateGLXPixmapReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->screen);

+    __GLX_SWAP_INT(&req->visual);

+    __GLX_SWAP_INT(&req->pixmap);

+    __GLX_SWAP_INT(&req->glxpixmap);

+

+    return __glXDisp_CreateGLXPixmap(cl, pc);

+}

+

+int __glXDispSwap_CreatePixmap(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreatePixmapReq *req = (xGLXCreatePixmapReq *) pc;

+    CARD32 *attribs;

+    __GLX_DECLARE_SWAP_VARIABLES;

+    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;

+

+    REQUEST_AT_LEAST_SIZE(xGLXCreatePixmapReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->screen);

+    __GLX_SWAP_INT(&req->fbconfig);

+    __GLX_SWAP_INT(&req->pixmap);

+    __GLX_SWAP_INT(&req->glxpixmap);

+    __GLX_SWAP_INT(&req->numAttribs);

+

+    if (req->numAttribs > (UINT32_MAX >> 3)) {

+	client->errorValue = req->numAttribs;

+	return BadValue;

+    }

+    REQUEST_FIXED_SIZE(xGLXCreatePixmapReq, req->numAttribs << 3);

+    attribs = (CARD32*)(req + 1);

+    __GLX_SWAP_INT_ARRAY(attribs, req->numAttribs << 1);

+

+    return __glXDisp_CreatePixmap(cl, pc);

+}

+

+int __glXDispSwap_CreateGLXPixmapWithConfigSGIX(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreateGLXPixmapWithConfigSGIXReq *req = 

+	(xGLXCreateGLXPixmapWithConfigSGIXReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXCreateGLXPixmapWithConfigSGIXReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->screen);

+    __GLX_SWAP_INT(&req->fbconfig);

+    __GLX_SWAP_INT(&req->pixmap);

+    __GLX_SWAP_INT(&req->glxpixmap);

+

+    return __glXDisp_CreateGLXPixmapWithConfigSGIX(cl, pc);

+}

+

+int __glXDispSwap_DestroyGLXPixmap(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXDestroyGLXPixmapReq *req = (xGLXDestroyGLXPixmapReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXDestroyGLXPixmapReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->glxpixmap);

+

+    return __glXDisp_DestroyGLXPixmap(cl, pc);

+}

+

+int __glXDispSwap_DestroyPixmap(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXDestroyGLXPixmapReq *req = (xGLXDestroyGLXPixmapReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_AT_LEAST_SIZE(xGLXDestroyGLXPixmapReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->glxpixmap);

+

+    return __glXDisp_DestroyGLXPixmap(cl, pc);

+}

+

+int __glXDispSwap_QueryContext(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXQueryContextReq *req = (xGLXQueryContextReq *) pc;    

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXQueryContextReq);

+

+    __GLX_SWAP_INT(&req->context);

+

+    return __glXDisp_QueryContext(cl, pc);

+}

+

+int __glXDispSwap_CreatePbuffer(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreatePbufferReq *req = (xGLXCreatePbufferReq *) pc;    

+    __GLX_DECLARE_SWAP_VARIABLES;

+    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;

+    CARD32 *attribs;

+

+    REQUEST_AT_LEAST_SIZE(xGLXCreatePbufferReq);

+

+    __GLX_SWAP_INT(&req->screen);

+    __GLX_SWAP_INT(&req->fbconfig);

+    __GLX_SWAP_INT(&req->pbuffer);

+    __GLX_SWAP_INT(&req->numAttribs);

+

+    if (req->numAttribs > (UINT32_MAX >> 3)) {

+	client->errorValue = req->numAttribs;

+	return BadValue;

+    }

+    REQUEST_FIXED_SIZE(xGLXCreatePbufferReq, req->numAttribs << 3);

+    attribs = (CARD32*)(req + 1);

+    __GLX_SWAP_INT_ARRAY(attribs, req->numAttribs << 1);

+

+    return __glXDisp_CreatePbuffer(cl, pc);

+}

+

+int __glXDispSwap_CreateGLXPbufferSGIX(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreateGLXPbufferSGIXReq *req = (xGLXCreateGLXPbufferSGIXReq *) pc;    

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_AT_LEAST_SIZE(xGLXCreateGLXPbufferSGIXReq);

+

+    __GLX_SWAP_INT(&req->screen);

+    __GLX_SWAP_INT(&req->fbconfig);

+    __GLX_SWAP_INT(&req->pbuffer);

+    __GLX_SWAP_INT(&req->width);

+    __GLX_SWAP_INT(&req->height);

+

+    return __glXDisp_CreateGLXPbufferSGIX(cl, pc);

+}

+

+int __glXDispSwap_DestroyPbuffer(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXDestroyPbufferReq *req = (xGLXDestroyPbufferReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXDestroyPbufferReq);

+

+    __GLX_SWAP_INT(&req->pbuffer);

+

+    return __glXDisp_DestroyPbuffer(cl, pc);

+}

+

+int __glXDispSwap_DestroyGLXPbufferSGIX(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXDestroyGLXPbufferSGIXReq *req = (xGLXDestroyGLXPbufferSGIXReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXDestroyGLXPbufferSGIXReq);

+

+    __GLX_SWAP_INT(&req->pbuffer);

+

+    return __glXDisp_DestroyGLXPbufferSGIX(cl, pc);

+}

+

+int __glXDispSwap_ChangeDrawableAttributes(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXChangeDrawableAttributesReq *req =

+	(xGLXChangeDrawableAttributesReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;

+    CARD32 *attribs;

+

+    REQUEST_AT_LEAST_SIZE(xGLXChangeDrawableAttributesReq);

+

+    __GLX_SWAP_INT(&req->drawable);

+    __GLX_SWAP_INT(&req->numAttribs);

+

+    if (req->numAttribs > (UINT32_MAX >> 3)) {

+	client->errorValue = req->numAttribs;

+	return BadValue;

+    }

+    if (((sizeof(xGLXChangeDrawableAttributesReq) + (req->numAttribs << 3)) >> 2) < client->req_len)

+	return BadLength;

+

+    attribs = (CARD32*)(req + 1);

+    __GLX_SWAP_INT_ARRAY(attribs, req->numAttribs << 1);

+

+    return __glXDisp_ChangeDrawableAttributes(cl, pc);

+}

+

+int __glXDispSwap_ChangeDrawableAttributesSGIX(__GLXclientState *cl,

+					       GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXChangeDrawableAttributesSGIXReq *req =

+	(xGLXChangeDrawableAttributesSGIXReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;

+    CARD32 *attribs;

+

+    REQUEST_AT_LEAST_SIZE(xGLXChangeDrawableAttributesSGIXReq);

+

+    __GLX_SWAP_INT(&req->drawable);

+    __GLX_SWAP_INT(&req->numAttribs);

+

+    if (req->numAttribs > (UINT32_MAX >> 3)) {

+	client->errorValue = req->numAttribs;

+	return BadValue;

+    }

+    REQUEST_FIXED_SIZE(xGLXChangeDrawableAttributesSGIXReq, req->numAttribs << 3);

+    attribs = (CARD32*)(req + 1);

+    __GLX_SWAP_INT_ARRAY(attribs, req->numAttribs << 1);

+

+    return __glXDisp_ChangeDrawableAttributesSGIX(cl, pc);

+}

+

+int __glXDispSwap_CreateWindow(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXCreateWindowReq *req = (xGLXCreateWindowReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;

+    CARD32 *attribs;

+

+    REQUEST_AT_LEAST_SIZE(xGLXCreateWindowReq);

+

+    __GLX_SWAP_INT(&req->screen);

+    __GLX_SWAP_INT(&req->fbconfig);

+    __GLX_SWAP_INT(&req->window);

+    __GLX_SWAP_INT(&req->glxwindow);

+    __GLX_SWAP_INT(&req->numAttribs);

+

+    if (req->numAttribs > (UINT32_MAX >> 3)) {

+	client->errorValue = req->numAttribs;

+	return BadValue;

+    }

+    REQUEST_FIXED_SIZE(xGLXCreateWindowReq, req->numAttribs << 3);

+    attribs = (CARD32*)(req + 1);

+    __GLX_SWAP_INT_ARRAY(attribs, req->numAttribs << 1);

+

+    return __glXDisp_CreateWindow(cl, pc);

+}

+

+int __glXDispSwap_DestroyWindow(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXDestroyWindowReq *req = (xGLXDestroyWindowReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_AT_LEAST_SIZE(xGLXDestroyWindowReq);

+

+    __GLX_SWAP_INT(&req->glxwindow);

+

+    return __glXDisp_DestroyWindow(cl, pc);

+}

+

+int __glXDispSwap_SwapBuffers(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXSwapBuffersReq *req = (xGLXSwapBuffersReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXSwapBuffersReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->contextTag);

+    __GLX_SWAP_INT(&req->drawable);

+

+    return __glXDisp_SwapBuffers(cl, pc);

+}

+

+int __glXDispSwap_UseXFont(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXUseXFontReq *req = (xGLXUseXFontReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXUseXFontReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->contextTag);

+    __GLX_SWAP_INT(&req->font);

+    __GLX_SWAP_INT(&req->first);

+    __GLX_SWAP_INT(&req->count);

+    __GLX_SWAP_INT(&req->listBase);

+

+    return __glXDisp_UseXFont(cl, pc);

+}

+

+

+int __glXDispSwap_QueryExtensionsString(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXQueryExtensionsStringReq *req = (xGLXQueryExtensionsStringReq *)pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXQueryExtensionsStringReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->screen);

+

+    return __glXDisp_QueryExtensionsString(cl, pc);

+}

+

+int __glXDispSwap_QueryServerString(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXQueryServerStringReq *req = (xGLXQueryServerStringReq *)pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXQueryServerStringReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->screen);

+    __GLX_SWAP_INT(&req->name);

+

+    return __glXDisp_QueryServerString(cl, pc);

+}

+

+int __glXDispSwap_ClientInfo(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXClientInfoReq *req = (xGLXClientInfoReq *)pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_AT_LEAST_SIZE(xGLXClientInfoReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->major);

+    __GLX_SWAP_INT(&req->minor);

+    __GLX_SWAP_INT(&req->numbytes);

+

+    return __glXDisp_ClientInfo(cl, pc);

+}

+

+int __glXDispSwap_QueryContextInfoEXT(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXQueryContextInfoEXTReq *req = (xGLXQueryContextInfoEXTReq *) pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXQueryContextInfoEXTReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->context);

+

+    return __glXDisp_QueryContextInfoEXT(cl, pc);

+}

+

+int __glXDispSwap_BindTexImageEXT(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;

+    GLXDrawable		 *drawId;

+    int			 *buffer;

+    CARD32		 *num_attribs;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    if ((sizeof(xGLXVendorPrivateReq) + 12) >> 2 > client->req_len)

+	return BadLength;

+

+    pc += __GLX_VENDPRIV_HDR_SIZE;

+

+    drawId = ((GLXDrawable *) (pc));

+    buffer = ((int *)	      (pc + 4));

+    num_attribs = ((CARD32 *) (pc + 8));

+    

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->contextTag);

+    __GLX_SWAP_INT(drawId);

+    __GLX_SWAP_INT(buffer);

+    __GLX_SWAP_INT(num_attribs);

+

+    return __glXDisp_BindTexImageEXT(cl, (GLbyte *)pc);

+}

+

+int __glXDispSwap_ReleaseTexImageEXT(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;

+    GLXDrawable		 *drawId;

+    int			 *buffer;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 8);

+

+    pc += __GLX_VENDPRIV_HDR_SIZE;

+

+    drawId = ((GLXDrawable *) (pc));

+    buffer = ((int *)	      (pc + 4));

+    

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->contextTag);

+    __GLX_SWAP_INT(drawId);

+    __GLX_SWAP_INT(buffer);

+

+    return __glXDisp_ReleaseTexImageEXT(cl, (GLbyte *)pc);

+}

+

+int __glXDispSwap_CopySubBufferMESA(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;

+    GLXDrawable		 *drawId;

+    int			 *buffer;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 20);

+

+    (void) drawId;

+    (void) buffer;

+

+    pc += __GLX_VENDPRIV_HDR_SIZE;

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->contextTag);

+    __GLX_SWAP_INT(pc);

+    __GLX_SWAP_INT(pc + 4);

+    __GLX_SWAP_INT(pc + 8);

+    __GLX_SWAP_INT(pc + 12);

+    __GLX_SWAP_INT(pc + 16);

+

+    return __glXDisp_CopySubBufferMESA(cl, pc);

+

+}

+

+int __glXDispSwap_GetDrawableAttributesSGIX(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXVendorPrivateWithReplyReq *req = (xGLXVendorPrivateWithReplyReq *)pc;

+    CARD32 *data;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_SIZE_MATCH(xGLXGetDrawableAttributesSGIXReq);

+

+    data = (CARD32 *) (req + 1);

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->contextTag);

+    __GLX_SWAP_INT(data);

+

+    return __glXDisp_GetDrawableAttributesSGIX(cl, pc);

+}

+

+int __glXDispSwap_GetDrawableAttributes(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXGetDrawableAttributesReq *req = (xGLXGetDrawableAttributesReq *)pc;

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    REQUEST_AT_LEAST_SIZE(xGLXGetDrawableAttributesReq);

+

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->drawable);

+

+    return __glXDisp_GetDrawableAttributes(cl, pc);

+}

+

+

+/************************************************************************/

+

+/*

+** Swap replies.

+*/

+

+void __glXSwapMakeCurrentReply(ClientPtr client, xGLXMakeCurrentReply *reply)

+{

+    __GLX_DECLARE_SWAP_VARIABLES;

+    __GLX_SWAP_SHORT(&reply->sequenceNumber);

+    __GLX_SWAP_INT(&reply->length);

+    __GLX_SWAP_INT(&reply->contextTag);

+    WriteToClient(client, sz_xGLXMakeCurrentReply, (char *)reply);

+}

+

+void __glXSwapIsDirectReply(ClientPtr client, xGLXIsDirectReply *reply)

+{

+    __GLX_DECLARE_SWAP_VARIABLES;

+    __GLX_SWAP_SHORT(&reply->sequenceNumber);

+    __GLX_SWAP_INT(&reply->length);

+    WriteToClient(client, sz_xGLXIsDirectReply, (char *)reply);

+}

+

+void __glXSwapQueryVersionReply(ClientPtr client, xGLXQueryVersionReply *reply)

+{

+    __GLX_DECLARE_SWAP_VARIABLES;

+    __GLX_SWAP_SHORT(&reply->sequenceNumber);

+    __GLX_SWAP_INT(&reply->length);

+    __GLX_SWAP_INT(&reply->majorVersion);

+    __GLX_SWAP_INT(&reply->minorVersion);

+    WriteToClient(client, sz_xGLXQueryVersionReply, (char *)reply);

+}

+

+void glxSwapQueryExtensionsStringReply(ClientPtr client,

+				       xGLXQueryExtensionsStringReply *reply, char *buf)

+{

+    int length = reply->length;

+    __GLX_DECLARE_SWAP_VARIABLES;

+    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;

+    __GLX_SWAP_SHORT(&reply->sequenceNumber);

+    __GLX_SWAP_INT(&reply->length);

+    __GLX_SWAP_INT(&reply->n);

+    WriteToClient(client, sz_xGLXQueryExtensionsStringReply, (char *)reply);

+    __GLX_SWAP_INT_ARRAY((int *)buf, length);

+    WriteToClient(client, length << 2, buf);

+}

+

+void glxSwapQueryServerStringReply(ClientPtr client,

+				   xGLXQueryServerStringReply *reply, char *buf)

+{

+    int length = reply->length;

+    __GLX_DECLARE_SWAP_VARIABLES;

+    __GLX_SWAP_SHORT(&reply->sequenceNumber);

+    __GLX_SWAP_INT(&reply->length);

+    __GLX_SWAP_INT(&reply->n);

+    WriteToClient(client, sz_xGLXQueryServerStringReply, (char *)reply);

+    /** no swap is needed for an array of chars **/

+    /* __GLX_SWAP_INT_ARRAY((int *)buf, length); */

+    WriteToClient(client, length << 2, buf);

+}

+

+void __glXSwapQueryContextInfoEXTReply(ClientPtr client, xGLXQueryContextInfoEXTReply *reply, int *buf)

+{

+    int length = reply->length;

+    __GLX_DECLARE_SWAP_VARIABLES;

+    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;

+    __GLX_SWAP_SHORT(&reply->sequenceNumber);

+    __GLX_SWAP_INT(&reply->length);

+    __GLX_SWAP_INT(&reply->n);

+    WriteToClient(client, sz_xGLXQueryContextInfoEXTReply, (char *)reply);

+    __GLX_SWAP_INT_ARRAY((int *)buf, length);

+    WriteToClient(client, length << 2, (char *)buf);

+}

+

+void __glXSwapGetDrawableAttributesReply(ClientPtr client,

+					 xGLXGetDrawableAttributesReply *reply, CARD32 *buf)

+{

+    int length = reply->length;

+    __GLX_DECLARE_SWAP_VARIABLES;

+    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;

+    __GLX_SWAP_SHORT(&reply->sequenceNumber);

+    __GLX_SWAP_INT(&reply->length);

+    __GLX_SWAP_INT(&reply->numAttribs);

+    WriteToClient(client, sz_xGLXGetDrawableAttributesReply, (char *)reply);

+    __GLX_SWAP_INT_ARRAY((int *)buf, length);

+    WriteToClient(client, length << 2, (char *)buf);

+}

+

+/************************************************************************/

+

+/*

+** Render and Renderlarge are not in the GLX API.  They are used by the GLX

+** client library to send batches of GL rendering commands.

+*/

+

+int __glXDispSwap_Render(__GLXclientState *cl, GLbyte *pc)

+{

+    return __glXDisp_Render(cl, pc);

+}

+

+/*

+** Execute a large rendering request (one that spans multiple X requests).

+*/

+int __glXDispSwap_RenderLarge(__GLXclientState *cl, GLbyte *pc)

+{

+    return __glXDisp_RenderLarge(cl, pc);

+}

+

+/************************************************************************/

+

+/*

+** No support is provided for the vendor-private requests other than

+** allocating these entry points in the dispatch table.

+*/

+

+int __glXDispSwap_VendorPrivate(__GLXclientState *cl, GLbyte *pc)

+{

+    xGLXVendorPrivateReq *req;

+    GLint vendorcode;

+    __GLXdispatchVendorPrivProcPtr proc;

+

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    req = (xGLXVendorPrivateReq *) pc;

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->vendorCode);

+

+    vendorcode = req->vendorCode;

+

+    proc = (__GLXdispatchVendorPrivProcPtr)

+      __glXGetProtocolDecodeFunction(& VendorPriv_dispatch_info,

+				     vendorcode, 1);

+    if (proc != NULL) {

+	(*proc)(cl, (GLbyte*)req);

+	return Success;

+    }

+

+    cl->client->errorValue = req->vendorCode;

+    return __glXError(GLXUnsupportedPrivateRequest);

+}

+

+

+int __glXDispSwap_VendorPrivateWithReply(__GLXclientState *cl, GLbyte *pc)

+{

+    xGLXVendorPrivateWithReplyReq *req;

+    GLint vendorcode;

+    __GLXdispatchVendorPrivProcPtr proc;

+

+    __GLX_DECLARE_SWAP_VARIABLES;

+

+    req = (xGLXVendorPrivateWithReplyReq *) pc;

+    __GLX_SWAP_SHORT(&req->length);

+    __GLX_SWAP_INT(&req->vendorCode);

+

+    vendorcode = req->vendorCode;

+

+    proc = (__GLXdispatchVendorPrivProcPtr)

+      __glXGetProtocolDecodeFunction(& VendorPriv_dispatch_info,

+				     vendorcode, 1);

+    if (proc != NULL) {

+	return (*proc)(cl, (GLbyte*)req);

+    }

+

+    cl->client->errorValue = req->vendorCode;

+    return __glXError(GLXUnsupportedPrivateRequest);

+}