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diff --git a/glx/glxcmds.c b/glx/glxcmds.c
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+/*
+** License Applicability. Except to the extent portions of this file are
+** made subject to an alternative license as permitted in the SGI Free
+** Software License B, Version 1.1 (the "License"), the contents of this
+** file are subject only to the provisions of the License. You may not use
+** this file except in compliance with the License. You may obtain a copy
+** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
+** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
+**
+** http://oss.sgi.com/projects/FreeB
+**
+** Note that, as provided in the License, the Software is distributed on an
+** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
+** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
+** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
+** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+**
+** Original Code. The Original Code is: OpenGL Sample Implementation,
+** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
+** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
+** Copyright in any portions created by third parties is as indicated
+** elsewhere herein. All Rights Reserved.
+**
+** Additional Notice Provisions: The application programming interfaces
+** established by SGI in conjunction with the Original Code are The
+** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
+** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
+** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
+** Window System(R) (Version 1.3), released October 19, 1998. This software
+** was created using the OpenGL(R) version 1.2.1 Sample Implementation
+** published by SGI, but has not been independently verified as being
+** compliant with the OpenGL(R) version 1.2.1 Specification.
+**
+*/
+
+#define NEED_REPLIES
+#define FONT_PCF
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <string.h>
+#include <assert.h>
+
+#include "glxserver.h"
+#include <GL/glxtokens.h>
+#include <unpack.h>
+#include "g_disptab.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"
+
+void
+GlxSetRenderTables (struct _glapi_table *table)
+{
+ _glapi_set_dispatch (table);
+}
+
+static int
+validGlxScreen(ClientPtr client, int screen, __GLXscreen **pGlxScreen, int *err)
+{
+ /*
+ ** Check if screen exists.
+ */
+ if (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;
+}
+
+void
+__glXContextDestroy(__GLXcontext *context)
+{
+ if (!context->isDirect)
+ __glXDeassociateContext(context);
+ __glXFlushContextCache();
+}
+
+
+static void __glXdirectContextDestroy(__GLXcontext *context)
+{
+ __glXContextDestroy(context);
+ xfree(context);
+}
+
+static __GLXcontext *__glXdirectContextCreate(__GLXscreen *screen,
+ __GLXconfig *modes,
+ __GLXcontext *shareContext)
+{
+ __GLXcontext *context;
+
+ context = xalloc (sizeof (__GLXcontext));
+ if (context == NULL)
+ return NULL;
+
+ memset(context, 0, sizeof *context);
+ context->destroy = __glXdirectContextDestroy;
+
+ return context;
+}
+
+/**
+ * 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;
+ __GLXcontext *glxc, *shareglxc;
+
+ 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 {
+ shareglxc = (__GLXcontext *) LookupIDByType(shareList, __glXContextRes);
+ if (!shareglxc) {
+ client->errorValue = shareList;
+ return __glXError(GLXBadContext);
+ }
+ 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;
+
+ return Success;
+}
+
+int __glXDisp_CreateContext(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXCreateContextReq *req = (xGLXCreateContextReq *) pc;
+ __GLXconfig *config;
+ __GLXscreen *pGlxScreen;
+ int err;
+
+ 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)
+{
+ xGLXCreateNewContextReq *req = (xGLXCreateNewContextReq *) pc;
+ __GLXconfig *config;
+ __GLXscreen *pGlxScreen;
+ int err;
+
+ 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)
+{
+ xGLXCreateContextWithConfigSGIXReq *req =
+ (xGLXCreateContextWithConfigSGIXReq *) pc;
+ __GLXconfig *config;
+ __GLXscreen *pGlxScreen;
+ int err;
+
+ 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;
+ GLXContextID gcId = req->context;
+ __GLXcontext *glxc;
+
+ glxc = (__GLXcontext *) LookupIDByType(gcId, __glXContextRes);
+ if (glxc) {
+ /*
+ ** Just free the resource; don't actually destroy the context,
+ ** because it might be in use. The
+ ** destroy method will be called by the resource destruction routine
+ ** if necessary.
+ */
+ FreeResourceByType(gcId, __glXContextRes, FALSE);
+ return Success;
+ } else {
+ client->errorValue = gcId;
+ return __glXError(GLXBadContext);
+ }
+}
+
+/*****************************************************************************/
+
+/*
+** 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, __GLXcontext *glxc)
+{
+ int i;
+ int num = cl->numCurrentContexts;
+ __GLXcontext **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 = (__GLXcontext **) xalloc(sizeof(__GLXcontext *));
+ } else {
+ table = (__GLXcontext **) xrealloc(table,
+ (num+1)*sizeof(__GLXcontext *));
+ }
+ 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, __GLXcontext *glxc,
+ GLXContextTag tag)
+{
+ __GLXcontext **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.
+*/
+__GLXcontext *__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(__GLXcontext *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, __GLXcontext *glxc)
+{
+ glxc->isCurrent = GL_TRUE;
+}
+
+/**
+ * Given a drawable ID, get the associated drawable and / or pixmap.
+ *
+ * If the specified drawable ID is not a pixmap, \c ppPixmap will be set
+ * to \c NULL on return. In either case, \c ppDraw will be set to a drawable.
+ * In the case where the drawable ID is a pixmap, \c ppDraw will be set to
+ * the drawable associated with that pixmap.
+ *
+ * \param glxc Associated GLX context.
+ * \param drawId ID of the drawable.
+ * \param client Pointer to the client state.
+ * \return the __GLXdrawable is returned on success. Otherwise NULL.
+ *
+ * \notes This function will need some modification when support pbuffers
+ * is added.
+ */
+static __GLXdrawable *
+__glXGetDrawable(__GLXcontext *glxc, GLXDrawable drawId, ClientPtr client,
+ int *error)
+{
+ DrawablePtr pDraw;
+ __GLXdrawable *pGlxDraw;
+ int rc;
+
+ /* This is the GLX 1.3 case - the client passes in a GLXWindow or
+ * GLXPixmap and we just return the __GLXdrawable. */
+ pGlxDraw = (__GLXdrawable *) LookupIDByType(drawId, __glXDrawableRes);
+ if (pGlxDraw != NULL) {
+ if (glxc != NULL && pGlxDraw->config != glxc->config) {
+ client->errorValue = drawId;
+ *error = BadMatch;
+ return NULL;
+ }
+
+ return pGlxDraw;
+ }
+
+ /* The drawId wasn't a GLX drawable, so presumably it's a regular
+ * X window. In that case, we create a shadow GLXWindow for it on
+ * demand here for pre GLX 1.3 compatibility and use the X Window
+ * XID as its GLXWindow XID. The client can't explicitly create a
+ * GLXWindow with the same XID as an X Window, so we wont get any
+ * resource ID clashes. Effectively, the X Window is now also a
+ * GLXWindow. */
+
+ rc = dixLookupDrawable(&pDraw, drawId, client, 0, DixGetAttrAccess);
+ if (rc != Success || pDraw->type != DRAWABLE_WINDOW) {
+ client->errorValue = drawId;
+ *error = __glXError(GLXBadDrawable);
+ return NULL;
+ }
+
+ /* If we're not given a context, don't create the __GLXdrawable */
+ if (glxc == NULL) {
+ *error = __glXError(GLXBadDrawable);
+ return NULL;
+ }
+
+ /* We're binding an X Window for the first time and need to create
+ * a GLX drawable for it. Check that the drawable screen matches
+ * the context screen and that the context fbconfig is compatible
+ * with the window visual. */
+ if (pDraw->pScreen != glxc->pGlxScreen->pScreen ||
+ !validGlxFBConfigForWindow(client, glxc->config, pDraw, error))
+ return NULL;
+
+ pGlxDraw = glxc->pGlxScreen->createDrawable(glxc->pGlxScreen,
+ pDraw, 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;
+ __GLXcontext *glxc, *prevglxc;
+ __GLXdrawable *drawPriv = NULL;
+ __GLXdrawable *readPriv = NULL;
+ GLint 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;
+
+ glxc = (__GLXcontext *) LookupIDByType(contextId, __glXContextRes);
+ if (!glxc) {
+ client->errorValue = contextId;
+ return __glXError(GLXBadContext);
+ }
+ 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();
+ __glXDeassociateContext(prevglxc);
+ }
+
+
+ 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);
+ }
+
+ /* resize the buffers */
+ if (!(*drawPriv->resize)(drawPriv)) {
+ /* could not do initial resize. make current failed */
+ (*glxc->loseCurrent)(glxc);
+ glxc->drawPriv = NULL;
+ glxc->readPriv = NULL;
+ return __glXError(GLXBadContext);
+ }
+
+ glxc->isCurrent = GL_TRUE;
+ __glXAssociateContext(glxc);
+ assert(drawPriv->drawGlxc == glxc);
+ assert(readPriv->readGlxc == glxc);
+ }
+
+ 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)
+{
+ xGLXMakeCurrentReq *req = (xGLXMakeCurrentReq *) pc;
+
+ return DoMakeCurrent( cl, req->drawable, req->drawable,
+ req->context, req->oldContextTag );
+}
+
+int __glXDisp_MakeContextCurrent(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXMakeContextCurrentReq *req = (xGLXMakeContextCurrentReq *) pc;
+
+ return DoMakeCurrent( cl, req->drawable, req->readdrawable,
+ req->context, req->oldContextTag );
+}
+
+int __glXDisp_MakeCurrentReadSGI(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXMakeCurrentReadSGIReq *req = (xGLXMakeCurrentReadSGIReq *) pc;
+
+ 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;
+ __GLXcontext *glxc;
+
+ /*
+ ** Find the GL context.
+ */
+ glxc = (__GLXcontext *) LookupIDByType(req->context, __glXContextRes);
+ if (!glxc) {
+ client->errorValue = req->context;
+ return __glXError(GLXBadContext);
+ }
+
+ 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;
+
+ 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 = GLX_SERVER_MAJOR_VERSION;
+ reply.minorVersion = GLX_SERVER_MINOR_VERSION;
+ 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)
+{
+ xGLXWaitGLReq *req = (xGLXWaitGLReq *)pc;
+ int error;
+
+ if (!__glXForceCurrent(cl, req->contextTag, &error)) {
+ return error;
+ }
+ CALL_Finish( GET_DISPATCH(), () );
+ return Success;
+}
+
+int __glXDisp_WaitX(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXWaitXReq *req = (xGLXWaitXReq *)pc;
+ int error;
+
+ if (!__glXForceCurrent(cl, req->contextTag, &error)) {
+ return error;
+ }
+ /*
+ ** In a multithreaded server that had separate X and GL threads, we would
+ ** have to wait for the X thread to finish before returning. As it stands,
+ ** this sample implementation only supports singlethreaded servers, and
+ ** nothing needs to be done here.
+ */
+ return Success;
+}
+
+int __glXDisp_CopyContext(__GLXclientState *cl, GLbyte *pc)
+{
+ ClientPtr client = cl->client;
+ xGLXCopyContextReq *req = (xGLXCopyContextReq *) pc;
+ GLXContextID source = req->source;
+ GLXContextID dest = req->dest;
+ GLXContextTag tag = req->contextTag;
+ unsigned long mask = req->mask;
+ __GLXcontext *src, *dst;
+ int error;
+
+ /*
+ ** Check that each context exists.
+ */
+ src = (__GLXcontext *) LookupIDByType(source, __glXContextRes);
+ if (!src) {
+ client->errorValue = source;
+ return __glXError(GLXBadContext);
+ }
+ dst = (__GLXcontext *) LookupIDByType(dest, __glXContextRes);
+ if (!dst) {
+ client->errorValue = dest;
+ return __glXError(GLXBadContext);
+ }
+
+ /*
+ ** 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) {
+ __GLXcontext *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;
+}
+
+
+int __glXDisp_GetVisualConfigs(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXGetVisualConfigsReq *req = (xGLXGetVisualConfigsReq *) pc;
+ ClientPtr client = cl->client;
+ xGLXGetVisualConfigsReply reply;
+ __GLXscreen *pGlxScreen;
+ __GLXconfig *modes;
+ CARD32 buf[__GLX_TOTAL_CONFIG];
+ int p, i, err;
+ __GLX_DECLARE_SWAP_VARIABLES;
+ __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
+
+ if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err))
+ return err;
+
+ reply.numVisuals = pGlxScreen->numVisuals;
+ reply.numProps = __GLX_TOTAL_CONFIG;
+ reply.length = (reply.numVisuals * __GLX_SIZE_CARD32 * __GLX_TOTAL_CONFIG) >> 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->rgbMode;
+
+ 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;
+ /*
+ ** 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++] = 0;
+ buf[p++] = 0;
+ buf[p++] = 0;
+ buf[p++] = 0;
+ buf[p++] = 0;
+ buf[p++] = 0;
+
+ if (client->swapped) {
+ __GLX_SWAP_INT_ARRAY(buf, __GLX_TOTAL_CONFIG);
+ }
+ WriteToClient(client, __GLX_SIZE_CARD32 * __GLX_TOTAL_CONFIG,
+ (char *)buf);
+ }
+ return Success;
+}
+
+#define __GLX_TOTAL_FBCONFIG_ATTRIBS (33)
+#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->rgbMode );
+ 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_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)
+{
+ xGLXGetFBConfigsReq *req = (xGLXGetFBConfigsReq *) pc;
+ return DoGetFBConfigs(cl, req->screen);
+}
+
+int __glXDisp_GetFBConfigsSGIX(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXGetFBConfigsSGIXReq *req = (xGLXGetFBConfigsSGIXReq *) pc;
+ return DoGetFBConfigs(cl, req->screen);
+}
+
+static int
+DoCreateGLXDrawable(ClientPtr client, __GLXscreen *pGlxScreen, __GLXconfig *config,
+ DrawablePtr pDraw, XID glxDrawableId, int type)
+{
+ __GLXdrawable *pGlxDraw;
+
+ LEGAL_NEW_RESOURCE(glxDrawableId, client);
+
+ if (pGlxScreen->pScreen != pDraw->pScreen)
+ return BadMatch;
+
+ pGlxDraw = pGlxScreen->createDrawable(pGlxScreen, pDraw, type,
+ glxDrawableId, config);
+ if (pGlxDraw == NULL)
+ return BadAlloc;
+
+ if (!AddResource(glxDrawableId, __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;
+
+ err = dixLookupDrawable(&pDraw, drawableId, client, 0, DixAddAccess);
+ if (err != Success || pDraw->type != DRAWABLE_PIXMAP) {
+ client->errorValue = drawableId;
+ return BadPixmap;
+ }
+
+ err = DoCreateGLXDrawable(client, pGlxScreen, config, pDraw,
+ glxDrawableId, GLX_DRAWABLE_PIXMAP);
+
+ if (err == Success)
+ ((PixmapPtr) pDraw)->refcnt++;
+
+ return err;
+}
+
+static void
+determineTextureTarget(XID glxDrawableID, CARD32 *attribs, CARD32 numAttribs)
+{
+ GLenum target = 0;
+ int i;
+ __GLXdrawable *pGlxDraw;
+
+ pGlxDraw = LookupIDByType(glxDrawableID, __glXDrawableRes);
+
+ 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 (!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;
+}
+
+int __glXDisp_CreateGLXPixmap(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXCreateGLXPixmapReq *req = (xGLXCreateGLXPixmapReq *) pc;
+ __GLXconfig *config;
+ __GLXscreen *pGlxScreen;
+ int err;
+
+ 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)
+{
+ xGLXCreatePixmapReq *req = (xGLXCreatePixmapReq *) pc;
+ __GLXconfig *config;
+ __GLXscreen *pGlxScreen;
+ int err;
+
+ 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(req->glxpixmap,
+ (CARD32*) (req + 1), req->numAttribs);
+
+ return Success;
+}
+
+int __glXDisp_CreateGLXPixmapWithConfigSGIX(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXCreateGLXPixmapWithConfigSGIXReq *req =
+ (xGLXCreateGLXPixmapWithConfigSGIXReq *) pc;
+ __GLXconfig *config;
+ __GLXscreen *pGlxScreen;
+ int err;
+
+ 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)
+{
+ ClientPtr client = cl->client;
+ __GLXdrawable *pGlxDraw;
+
+ /*
+ ** Check it's the right type of drawable.
+ */
+ pGlxDraw = LookupIDByType(glxdrawable, __glXDrawableRes);
+ if (pGlxDraw == NULL || pGlxDraw->type != type) {
+ client->errorValue = glxdrawable;
+ switch (type) {
+ case GLX_DRAWABLE_WINDOW:
+ return __glXError(GLXBadWindow);
+ case GLX_DRAWABLE_PIXMAP:
+ return __glXError(GLXBadDrawable);
+ case GLX_DRAWABLE_PBUFFER:
+ return __glXError(GLXBadPbuffer);
+ }
+ }
+
+ if (type == GLX_DRAWABLE_PIXMAP) {
+ ((PixmapPtr) pGlxDraw->pDraw)->refcnt--;
+ }
+
+ FreeResource(glxdrawable, FALSE);
+
+ return Success;
+}
+
+int __glXDisp_DestroyGLXPixmap(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXDestroyGLXPixmapReq *req = (xGLXDestroyGLXPixmapReq *) pc;
+
+ return DoDestroyDrawable(cl, req->glxpixmap, GLX_DRAWABLE_PIXMAP);
+}
+
+int __glXDisp_DestroyPixmap(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXDestroyPixmapReq *req = (xGLXDestroyPixmapReq *) pc;
+
+ 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;
+
+ 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);
+
+ return DoCreateGLXDrawable(client, pGlxScreen, config, &pPixmap->drawable,
+ glxDrawableId, GLX_DRAWABLE_PBUFFER);
+}
+
+int __glXDisp_CreatePbuffer(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXCreatePbufferReq *req = (xGLXCreatePbufferReq *) pc;
+ CARD32 *attrs;
+ int width, height, i;
+
+ 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)
+{
+ xGLXCreateGLXPbufferSGIXReq *req = (xGLXCreateGLXPbufferSGIXReq *) pc;
+
+ return DoCreatePbuffer(cl->client, req->screen, req->fbconfig,
+ req->width, req->height, req->pbuffer);
+}
+
+int __glXDisp_DestroyPbuffer(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXDestroyPbufferReq *req = (xGLXDestroyPbufferReq *) pc;
+
+ return DoDestroyDrawable(cl, req->pbuffer, GLX_DRAWABLE_PBUFFER);
+}
+
+int __glXDisp_DestroyGLXPbufferSGIX(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXDestroyGLXPbufferSGIXReq *req = (xGLXDestroyGLXPbufferSGIXReq *) pc;
+
+ return DoDestroyDrawable(cl, req->pbuffer, GLX_DRAWABLE_PBUFFER);
+}
+
+static int
+DoChangeDrawableAttributes(ClientPtr client, XID glxdrawable,
+ int numAttribs, CARD32 *attribs)
+{
+ __GLXdrawable *pGlxDraw;
+ int i;
+
+ pGlxDraw = LookupIDByType(glxdrawable, __glXDrawableRes);
+ 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)
+{
+ xGLXChangeDrawableAttributesReq *req =
+ (xGLXChangeDrawableAttributesReq *) pc;
+
+ return DoChangeDrawableAttributes(cl->client, req->drawable,
+ req->numAttribs, (CARD32 *) (req + 1));
+}
+
+int __glXDisp_ChangeDrawableAttributesSGIX(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXChangeDrawableAttributesSGIXReq *req =
+ (xGLXChangeDrawableAttributesSGIXReq *)pc;
+
+ 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;
+
+ 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->glxwindow, GLX_DRAWABLE_WINDOW);
+}
+
+int __glXDisp_DestroyWindow(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXDestroyWindowReq *req = (xGLXDestroyWindowReq *) pc;
+
+ 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 = req->contextTag;
+ XID drawId = req->drawable;
+ __GLXcontext *glxc = NULL;
+ __GLXdrawable *pGlxDraw;
+ int error;
+
+ 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)(pGlxDraw) == GL_FALSE)
+ return __glXError(GLXBadDrawable);
+
+ return Success;
+}
+
+
+static int
+DoQueryContext(__GLXclientState *cl, GLXContextID gcId)
+{
+ ClientPtr client = cl->client;
+ __GLXcontext *ctx;
+ xGLXQueryContextInfoEXTReply reply;
+ int nProps;
+ int *sendBuf, *pSendBuf;
+ int nReplyBytes;
+
+ ctx = (__GLXcontext *) LookupIDByType(gcId, __glXContextRes);
+ if (!ctx) {
+ client->errorValue = gcId;
+ return __glXError(GLXBadContext);
+ }
+
+ nProps = 3;
+ reply.length = nProps << 1;
+ reply.type = X_Reply;
+ reply.sequenceNumber = client->sequence;
+ reply.n = nProps;
+
+ nReplyBytes = reply.length << 2;
+ sendBuf = (int *)xalloc((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);
+ }
+ xfree((char *)sendBuf);
+
+ return Success;
+}
+
+int __glXDisp_QueryContextInfoEXT(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXQueryContextInfoEXTReq *req = (xGLXQueryContextInfoEXTReq *) pc;
+
+ return DoQueryContext(cl, req->context);
+}
+
+int __glXDisp_QueryContext(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXQueryContextReq *req = (xGLXQueryContextReq *) pc;
+
+ return DoQueryContext(cl, req->context);
+}
+
+int __glXDisp_BindTexImageEXT(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
+ ClientPtr client = cl->client;
+ __GLXcontext *context;
+ __GLXdrawable *pGlxDraw;
+ GLXDrawable drawId;
+ int buffer;
+ int error;
+
+ 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;
+
+ pGlxDraw = __glXGetDrawable(NULL, drawId, client, &error);
+ if (!pGlxDraw || pGlxDraw->type != GLX_DRAWABLE_PIXMAP) {
+ client->errorValue = drawId;
+ return __glXError(GLXBadPixmap);
+ }
+
+ 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;
+ __GLXcontext *context;
+ GLXDrawable drawId;
+ int buffer;
+ int error;
+
+ pc += __GLX_VENDPRIV_HDR_SIZE;
+
+ drawId = *((CARD32 *) (pc));
+ buffer = *((INT32 *) (pc + 4));
+
+ context = __glXForceCurrent (cl, req->contextTag, &error);
+ if (!context)
+ return error;
+
+ pGlxDraw = __glXGetDrawable(NULL, drawId, client, &error);
+ if (!pGlxDraw || pGlxDraw->type != GLX_DRAWABLE_PIXMAP) {
+ client->errorValue = drawId;
+ 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;
+ __GLXcontext *glxc = NULL;
+ __GLXdrawable *pGlxDraw;
+ ClientPtr client = cl->client;
+ GLXDrawable drawId;
+ int error;
+ int x, y, width, height;
+
+ (void) client;
+ (void) req;
+
+ 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;
+
+ pGlxDraw = __glXGetDrawable(NULL, drawId, client, &error);
+ if (!pGlxDraw) {
+ client->errorValue = drawId;
+ 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)
+{
+ xGLXGetDrawableAttributesReq *req = (xGLXGetDrawableAttributesReq *)pc;
+
+ return DoGetDrawableAttributes(cl, req->drawable);
+}
+
+int __glXDisp_GetDrawableAttributesSGIX(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXGetDrawableAttributesSGIXReq *req =
+ (xGLXGetDrawableAttributesSGIXReq *)pc;
+
+ 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;
+ __GLXcontext *glxc;
+ __GLX_DECLARE_SWAP_VARIABLES;
+
+ 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;
+
+ /*
+ ** 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;
+ __GLXcontext *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 *) xalloc(cmdlen);
+ } else {
+ cl->largeCmdBuf = (GLbyte *) xrealloc(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;
+ }
+}
+
+extern RESTYPE __glXSwapBarrierRes;
+
+int __glXDisp_BindSwapBarrierSGIX(__GLXclientState *cl, GLbyte *pc)
+{
+ ClientPtr client = cl->client;
+ xGLXBindSwapBarrierSGIXReq *req = (xGLXBindSwapBarrierSGIXReq *) pc;
+ XID drawable = req->drawable;
+ int barrier = req->barrier;
+ DrawablePtr pDraw;
+ int screen, rc;
+ __GLXscreen *pGlxScreen;
+
+ rc = dixLookupDrawable(&pDraw, drawable, client, 0, DixGetAttrAccess);
+ pGlxScreen = glxGetScreen(pDraw->pScreen);
+ if (rc == Success && (pDraw->type == DRAWABLE_WINDOW)) {
+ screen = pDraw->pScreen->myNum;
+ if (pGlxScreen->swapBarrierFuncs) {
+ int ret = pGlxScreen->swapBarrierFuncs->bindSwapBarrierFunc(screen, drawable, barrier);
+ if (ret == Success) {
+ if (barrier)
+ /* add source for cleanup when drawable is gone */
+ AddResource(drawable, __glXSwapBarrierRes, (pointer)screen);
+ else
+ /* delete source */
+ FreeResourceByType(drawable, __glXSwapBarrierRes, FALSE);
+ }
+ return ret;
+ }
+ }
+ client->errorValue = drawable;
+ return __glXError(GLXBadDrawable);
+}
+
+
+int __glXDisp_QueryMaxSwapBarriersSGIX(__GLXclientState *cl, GLbyte *pc)
+{
+ ClientPtr client = cl->client;
+ xGLXQueryMaxSwapBarriersSGIXReq *req =
+ (xGLXQueryMaxSwapBarriersSGIXReq *) pc;
+ xGLXQueryMaxSwapBarriersSGIXReply reply;
+ int screen = req->screen;
+ __GLXscreen *pGlxScreen;
+
+ pGlxScreen = glxGetScreen(screenInfo.screens[screen]);
+ if (pGlxScreen->swapBarrierFuncs)
+ reply.max = pGlxScreen->swapBarrierFuncs->queryMaxSwapBarriersFunc(screen);
+ else
+ reply.max = 0;
+
+
+ reply.length = 0;
+ reply.type = X_Reply;
+ reply.sequenceNumber = client->sequence;
+
+ if (client->swapped) {
+ __GLX_DECLARE_SWAP_VARIABLES;
+ __GLX_SWAP_SHORT(&reply.sequenceNumber);
+ }
+
+ WriteToClient(client, sz_xGLXQueryMaxSwapBarriersSGIXReply,
+ (char *) &reply);
+ return Success;
+}
+
+#define GLX_BAD_HYPERPIPE_SGIX 92
+
+int __glXDisp_QueryHyperpipeNetworkSGIX(__GLXclientState *cl, GLbyte *pc)
+{
+ ClientPtr client = cl->client;
+ xGLXQueryHyperpipeNetworkSGIXReq * req = (xGLXQueryHyperpipeNetworkSGIXReq *) pc;
+ xGLXQueryHyperpipeNetworkSGIXReply reply;
+ int screen = req->screen;
+ void *rdata = NULL;
+
+ int length=0;
+ int npipes=0;
+
+ int n= 0;
+ __GLXscreen *pGlxScreen;
+
+ pGlxScreen = glxGetScreen(screenInfo.screens[screen]);
+ if (pGlxScreen->hyperpipeFuncs) {
+ rdata =
+ (pGlxScreen->hyperpipeFuncs->queryHyperpipeNetworkFunc(screen, &npipes, &n));
+ }
+ length = __GLX_PAD(n) >> 2;
+ reply.type = X_Reply;
+ reply.sequenceNumber = client->sequence;
+ reply.length = length;
+ reply.n = n;
+ reply.npipes = npipes;
+
+ if (client->swapped) {
+ __GLX_DECLARE_SWAP_VARIABLES;
+ __GLX_SWAP_SHORT(&reply.sequenceNumber);
+ __GLX_SWAP_INT(&reply.length);
+ __GLX_SWAP_INT(&reply.n);
+ __GLX_SWAP_INT(&reply.npipes);
+ }
+ WriteToClient(client, sz_xGLXQueryHyperpipeNetworkSGIXReply,
+ (char *) &reply);
+
+ WriteToClient(client, length << 2, (char *)rdata);
+
+ return Success;
+}
+
+int __glXDisp_DestroyHyperpipeConfigSGIX (__GLXclientState *cl, GLbyte *pc)
+{
+ ClientPtr client = cl->client;
+ xGLXDestroyHyperpipeConfigSGIXReq * req =
+ (xGLXDestroyHyperpipeConfigSGIXReq *) pc;
+ xGLXDestroyHyperpipeConfigSGIXReply reply;
+ int screen = req->screen;
+ int success = GLX_BAD_HYPERPIPE_SGIX;
+ int hpId ;
+ __GLXscreen *pGlxScreen;
+
+ hpId = req->hpId;
+
+ pGlxScreen = glxGetScreen(screenInfo.screens[screen]);
+ if (pGlxScreen->hyperpipeFuncs) {
+ success = pGlxScreen->hyperpipeFuncs->destroyHyperpipeConfigFunc(screen, hpId);
+ }
+
+ reply.type = X_Reply;
+ reply.sequenceNumber = client->sequence;
+ reply.length = __GLX_PAD(0) >> 2;
+ reply.n = 0;
+ reply.success = success;
+
+
+ if (client->swapped) {
+ __GLX_DECLARE_SWAP_VARIABLES;
+ __GLX_SWAP_SHORT(&reply.sequenceNumber);
+ }
+ WriteToClient(client,
+ sz_xGLXDestroyHyperpipeConfigSGIXReply,
+ (char *) &reply);
+ return Success;
+}
+
+int __glXDisp_QueryHyperpipeConfigSGIX(__GLXclientState *cl, GLbyte *pc)
+{
+ ClientPtr client = cl->client;
+ xGLXQueryHyperpipeConfigSGIXReq * req =
+ (xGLXQueryHyperpipeConfigSGIXReq *) pc;
+ xGLXQueryHyperpipeConfigSGIXReply reply;
+ int screen = req->screen;
+ void *rdata = NULL;
+ int length;
+ int npipes=0;
+ int n= 0;
+ int hpId;
+ __GLXscreen *pGlxScreen;
+
+ hpId = req->hpId;
+
+ pGlxScreen = glxGetScreen(screenInfo.screens[screen]);
+ if (pGlxScreen->hyperpipeFuncs) {
+ rdata = pGlxScreen->hyperpipeFuncs->queryHyperpipeConfigFunc(screen, hpId,&npipes, &n);
+ }
+
+ length = __GLX_PAD(n) >> 2;
+ reply.type = X_Reply;
+ reply.sequenceNumber = client->sequence;
+ reply.length = length;
+ reply.n = n;
+ reply.npipes = npipes;
+
+
+ if (client->swapped) {
+ __GLX_DECLARE_SWAP_VARIABLES;
+ __GLX_SWAP_SHORT(&reply.sequenceNumber);
+ __GLX_SWAP_INT(&reply.length);
+ __GLX_SWAP_INT(&reply.n);
+ __GLX_SWAP_INT(&reply.npipes);
+ }
+
+ WriteToClient(client, sz_xGLXQueryHyperpipeConfigSGIXReply,
+ (char *) &reply);
+
+ WriteToClient(client, length << 2, (char *)rdata);
+
+ return Success;
+}
+
+int __glXDisp_HyperpipeConfigSGIX(__GLXclientState *cl, GLbyte *pc)
+{
+ ClientPtr client = cl->client;
+ xGLXHyperpipeConfigSGIXReq * req =
+ (xGLXHyperpipeConfigSGIXReq *) pc;
+ xGLXHyperpipeConfigSGIXReply reply;
+ int screen = req->screen;
+ void *rdata;
+
+ int npipes=0, networkId;
+ int hpId=-1;
+ __GLXscreen *pGlxScreen;
+
+ pGlxScreen = glxGetScreen(screenInfo.screens[screen]);
+ networkId = (int)req->networkId;
+ npipes = (int)req->npipes;
+ rdata = (void *)(req +1);
+
+ if (pGlxScreen->hyperpipeFuncs) {
+ pGlxScreen->hyperpipeFuncs->hyperpipeConfigFunc(screen,networkId,
+ &hpId, &npipes,
+ (void *) rdata);
+ }
+
+ reply.type = X_Reply;
+ reply.sequenceNumber = client->sequence;
+ reply.length = __GLX_PAD(0) >> 2;
+ reply.n = 0;
+ reply.npipes = npipes;
+ reply.hpId = hpId;
+
+ if (client->swapped) {
+ __GLX_DECLARE_SWAP_VARIABLES;
+ __GLX_SWAP_SHORT(&reply.sequenceNumber);
+ __GLX_SWAP_INT(&reply.npipes);
+ __GLX_SWAP_INT(&reply.hpId);
+ }
+
+ WriteToClient(client, sz_xGLXHyperpipeConfigSGIXReply,
+ (char *) &reply);
+
+ 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)
+{
+ xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
+ GLint vendorcode = req->vendorCode;
+ __GLXdispatchVendorPrivProcPtr proc;
+
+
+ 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)
+{
+ xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
+ GLint vendorcode = req->vendorCode;
+ __GLXdispatchVendorPrivProcPtr proc;
+
+
+ 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;
+
+ 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 *) xalloc(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);
+ }
+
+ xfree(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;
+
+ if (!validGlxScreen(client, req->screen, &pGlxScreen, &err))
+ return err;
+
+ switch(req->name) {
+ case GLX_VENDOR:
+ ptr = pGlxScreen->GLXvendor;
+ break;
+ case GLX_VERSION:
+ ptr = pGlxScreen->GLXversion;
+ 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 *) xalloc(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);
+ }
+
+ xfree(buf);
+ return Success;
+}
+
+int __glXDisp_ClientInfo(__GLXclientState *cl, GLbyte *pc)
+{
+ xGLXClientInfoReq *req = (xGLXClientInfoReq *) pc;
+ const char *buf;
+
+ cl->GLClientmajorVersion = req->major;
+ cl->GLClientminorVersion = req->minor;
+ if (cl->GLClientextensions)
+ xfree(cl->GLClientextensions);
+ buf = (const char *)(req+1);
+ cl->GLClientextensions = xstrdup(buf);
+
+ return Success;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 07:24:17 +0000