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Diffstat (limited to 'xorg-server/hw/dmx/glxProxy/glxext.c')
-rw-r--r--xorg-server/hw/dmx/glxProxy/glxext.c1013
1 files changed, 517 insertions, 496 deletions
diff --git a/xorg-server/hw/dmx/glxProxy/glxext.c b/xorg-server/hw/dmx/glxProxy/glxext.c
index 4da16a77d..b0710ccc6 100644
--- a/xorg-server/hw/dmx/glxProxy/glxext.c
+++ b/xorg-server/hw/dmx/glxProxy/glxext.c
@@ -1,496 +1,517 @@
-/*
- * 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_DMX_CONFIG_H
-#include <dmx-config.h>
-#endif
-
-#include "dmx.h"
-
-#include "glxserver.h"
-#include <windowstr.h>
-#include <propertyst.h>
-#include <os.h>
-#include "g_disptab.h"
-#include "glxutil.h"
-#include "glxext.h"
-#include "glxvisuals.h"
-#include "micmap.h"
-#include "glxswap.h"
-
-/*
-** Stubs to satisfy miinitext.c references.
-*/
-typedef int __GLXprovider;
-__GLXprovider __glXDRISWRastProvider;
-void GlxPushProvider(__GLXprovider *provider) { }
-
-/*
-** Forward declarations.
-*/
-static int __glXSwapDispatch(ClientPtr);
-static int __glXDispatch(ClientPtr);
-
-/*
-** Called when the extension is reset.
-*/
-static void ResetExtension(ExtensionEntry* extEntry)
-{
- __glXFlushContextCache();
- __glXScreenReset();
- SwapBarrierReset();
-}
-
-/*
-** Initialize the per-client context storage.
-*/
-static void ResetClientState(int clientIndex)
-{
- __GLXclientState *cl = __glXClients[clientIndex];
- Display **keep_be_displays;
- int i;
-
- free(cl->returnBuf);
- free(cl->currentContexts);
- free(cl->currentDrawables);
- free(cl->largeCmdBuf);
-
- for (i=0; i< screenInfo.numScreens; i++) {
- if (cl->be_displays[i])
- XCloseDisplay( cl->be_displays[i] );
- }
-
- keep_be_displays = cl->be_displays;
- memset(cl, 0, sizeof(__GLXclientState));
- cl->be_displays = keep_be_displays;
-
- /*
- ** By default, assume that the client supports
- ** GLX major version 1 minor version 0 protocol.
- */
- cl->GLClientmajorVersion = 1;
- cl->GLClientminorVersion = 0;
- free(cl->GLClientextensions);
-
- memset(cl->be_displays, 0, screenInfo.numScreens * sizeof(Display *));
-}
-
-
-/*
-** This procedure is called when the client who created the context goes
-** away OR when glXDestroyContext is called. In either case, all we do is
-** flag that the ID is no longer valid, and (maybe) free the context.
-** use.
-*/
-static int ContextGone(__GLXcontext* cx, XID id)
-{
- cx->idExists = GL_FALSE;
- if (!cx->isCurrent) {
- __glXFreeContext(cx);
- }
-
- return True;
-}
-
-/*
-** Free a client's state.
-*/
-static int ClientGone(int clientIndex, XID id)
-{
- __GLXcontext *cx;
- __GLXclientState *cl = __glXClients[clientIndex];
- int i;
-
- if (cl) {
- /*
- ** Free all the contexts that are current for this client.
- */
- for (i=0; i < cl->numCurrentContexts; i++) {
- cx = cl->currentContexts[i];
- if (cx) {
- cx->isCurrent = GL_FALSE;
- if (!cx->idExists) {
- __glXFreeContext(cx);
- }
- }
- }
- /*
- ** Re-initialize the client state structure. Don't free it because
- ** we'll probably get another client with this index and use the struct
- ** again. There is a maximum of MAXCLIENTS of these structures.
- */
- ResetClientState(clientIndex);
- }
-
- return True;
-}
-
-/*
-** Free a GLX Pixmap.
-*/
-void __glXFreeGLXPixmap( __GLXpixmap *pGlxPixmap )
-{
- if (!pGlxPixmap->idExists &&
- !pGlxPixmap->refcnt) {
-
- PixmapPtr pPixmap = (PixmapPtr) pGlxPixmap->pDraw;
-
- /*
- ** The DestroyPixmap routine should decrement the refcount and free
- ** only if it's zero.
- */
- (*pGlxPixmap->pScreen->DestroyPixmap)(pPixmap);
- free(pGlxPixmap->be_xids);
- free(pGlxPixmap);
- }
-
-}
-
-static int PixmapGone(__GLXpixmap *pGlxPixmap, XID id)
-{
-
- pGlxPixmap->idExists = False;
- __glXFreeGLXPixmap( pGlxPixmap );
-
- return True;
-}
-
-void __glXFreeGLXWindow(__glXWindow *pGlxWindow)
-{
- if (!pGlxWindow->idExists && !pGlxWindow->refcnt) {
- WindowPtr pWindow = (WindowPtr) pGlxWindow->pDraw;
- WindowPtr ret;
-
- dixLookupResourceByType((pointer) &ret,
- pWindow->drawable.id, RT_WINDOW,
- NullClient, DixUnknownAccess);
- if (ret == pWindow) {
- (*pGlxWindow->pScreen->DestroyWindow)(pWindow);
- }
-
- free(pGlxWindow);
- }
-}
-
-static void WindowGone(__glXWindow *pGlxWindow, XID id)
-{
- pGlxWindow->idExists = False;
- __glXFreeGLXWindow(pGlxWindow);
-}
-
-void __glXFreeGLXPbuffer(__glXPbuffer *pGlxPbuffer)
-{
- if (!pGlxPbuffer->idExists && !pGlxPbuffer->refcnt) {
- free(pGlxPbuffer->be_xids);
- free(pGlxPbuffer);
- }
-}
-
-static void PbufferGone(__glXPbuffer *pGlxPbuffer, XID id)
-{
- pGlxPbuffer->idExists = False;
- __glXFreeGLXPbuffer(pGlxPbuffer);
-}
-
-/*
-** Free a context.
-*/
-GLboolean __glXFreeContext(__GLXcontext *cx)
-{
- if (cx->idExists || cx->isCurrent) return GL_FALSE;
-
- free(cx->feedbackBuf);
- free(cx->selectBuf);
- free(cx->real_ids);
- free(cx->real_vids);
-
- if (cx->pGlxPixmap) {
- /*
- ** The previous drawable was a glx pixmap, release it.
- */
- cx->pGlxPixmap->refcnt--;
- __glXFreeGLXPixmap( cx->pGlxPixmap );
- cx->pGlxPixmap = 0;
- }
-
- if (cx->pGlxReadPixmap) {
- /*
- ** The previous drawable was a glx pixmap, release it.
- */
- cx->pGlxReadPixmap->refcnt--;
- __glXFreeGLXPixmap( cx->pGlxReadPixmap );
- cx->pGlxReadPixmap = 0;
- }
-
- if (cx->pGlxWindow) {
- /*
- ** The previous drawable was a glx window, release it.
- */
- cx->pGlxWindow->refcnt--;
- __glXFreeGLXWindow( cx->pGlxWindow );
- cx->pGlxWindow = 0;
- }
-
- if (cx->pGlxReadWindow) {
- /*
- ** The previous drawable was a glx window, release it.
- */
- cx->pGlxReadWindow->refcnt--;
- __glXFreeGLXWindow( cx->pGlxReadWindow );
- cx->pGlxReadWindow = 0;
- }
-
- free(cx);
-
- if (cx == __glXLastContext) {
- __glXFlushContextCache();
- }
-
- return GL_TRUE;
-}
-
-/*
-** Initialize the GLX extension.
-*/
-void GlxExtensionInit(void)
-{
- ExtensionEntry *extEntry;
- int i;
- int glxSupported = 1;
-
- /*
- // do not initialize GLX extension if GLX is not supported
- // by ALL back-end servers.
- */
- for (i=0; i<screenInfo.numScreens; i++) {
- glxSupported &= (dmxScreens[i].glxMajorOpcode > 0);
- }
-
- if (!glxSupported || !dmxGLXProxy) {
- return;
- }
-
- __glXContextRes = CreateNewResourceType((DeleteType)ContextGone,
- "GLXContext");
- __glXClientRes = CreateNewResourceType((DeleteType)ClientGone,
- "GLXClient");
- __glXPixmapRes = CreateNewResourceType((DeleteType)PixmapGone,
- "GLXPixmap");
- __glXWindowRes = CreateNewResourceType((DeleteType)WindowGone,
- "GLXWindow");
- __glXPbufferRes = CreateNewResourceType((DeleteType)PbufferGone,
- "GLXPbuffer");
-
- if (!__glXContextRes || !__glXClientRes || !__glXPixmapRes ||
- !__glXWindowRes || !__glXPbufferRes)
- return;
-
- /*
- ** Add extension to server extensions.
- */
- extEntry = AddExtension(GLX_EXTENSION_NAME, __GLX_NUMBER_EVENTS,
- __GLX_NUMBER_ERRORS, __glXDispatch,
- __glXSwapDispatch, ResetExtension,
- StandardMinorOpcode);
- if (!extEntry) {
- FatalError("__glXExtensionInit: AddExtensions failed\n");
- return;
- }
- /*
- if (!AddExtensionAlias(GLX_EXTENSION_ALIAS, extEntry)) {
- ErrorF("__glXExtensionInit: AddExtensionAlias failed\n");
- return;
- }
- */
-
- __glXerrorBase = extEntry->errorBase;
- __glXBadContext = extEntry->errorBase + GLXBadContext;
- __glXBadContextState = extEntry->errorBase + GLXBadContextState;
- __glXBadDrawable = extEntry->errorBase + GLXBadDrawable;
- __glXBadPixmap = extEntry->errorBase + GLXBadPixmap;
- __glXBadContextTag = extEntry->errorBase + GLXBadContextTag;
- __glXBadCurrentWindow = extEntry->errorBase + GLXBadCurrentWindow;
- __glXBadRenderRequest = extEntry->errorBase + GLXBadRenderRequest;
- __glXBadLargeRequest = extEntry->errorBase + GLXBadLargeRequest;
- __glXUnsupportedPrivateRequest = extEntry->errorBase +
- GLXUnsupportedPrivateRequest;
- __glXBadFBConfig = extEntry->errorBase + GLXBadFBConfig;
- __glXBadPbuffer = extEntry->errorBase + GLXBadPbuffer;
-
- /*
- ** Initialize table of client state. There is never a client 0.
- */
- for (i=1; i <= MAXCLIENTS; i++) {
- __glXClients[i] = 0;
- }
-
- /*
- ** Initialize screen specific data.
- */
- __glXScreenInit(screenInfo.numScreens);
-
- /*
- ** Initialize swap barrier support.
- */
- SwapBarrierInit();
-}
-
-/************************************************************************/
-
-Bool __glXCoreType(void)
-{
- return 0;
-}
-
-/************************************************************************/
-
-void __glXFlushContextCache(void)
-{
- __glXLastContext = 0;
-}
-
-/************************************************************************/
-
-/*
-** Top level dispatcher; all commands are executed from here down.
-*/
-static int __glXDispatch(ClientPtr client)
-{
- REQUEST(xGLXSingleReq);
- CARD8 opcode;
- int (*proc)(__GLXclientState *cl, GLbyte *pc);
- __GLXclientState *cl;
-
- opcode = stuff->glxCode;
- cl = __glXClients[client->index];
- if (!cl) {
- cl = calloc(1, sizeof(__GLXclientState));
- __glXClients[client->index] = cl;
- if (!cl) {
- return BadAlloc;
- }
-
- cl->be_displays = calloc(screenInfo.numScreens, sizeof(Display *));
- if (!cl->be_displays) {
- free( cl );
- return BadAlloc;
- }
- }
-
- if (!cl->inUse) {
- /*
- ** This is first request from this client. Associate a resource
- ** with the client so we will be notified when the client dies.
- */
- XID xid = FakeClientID(client->index);
- if (!AddResource( xid, __glXClientRes, (pointer)(long)client->index)) {
- return BadAlloc;
- }
- ResetClientState(client->index);
- cl->largeCmdRequestsTotal = 0;
- cl->inUse = GL_TRUE;
- cl->client = client;
- }
-
- /*
- ** Check for valid opcode.
- */
- if (opcode >= __GLX_SINGLE_TABLE_SIZE) {
- return BadRequest;
- }
-
- /*
- ** Use the opcode to index into the procedure table.
- */
- proc = __glXSingleTable[opcode];
- return (*proc)(cl, (GLbyte *) stuff);
-}
-
-static int __glXSwapDispatch(ClientPtr client)
-{
- REQUEST(xGLXSingleReq);
- CARD8 opcode;
- int (*proc)(__GLXclientState *cl, GLbyte *pc);
- __GLXclientState *cl;
-
- opcode = stuff->glxCode;
- cl = __glXClients[client->index];
- if (!cl) {
- cl = calloc(1, sizeof(__GLXclientState));
- __glXClients[client->index] = cl;
- if (!cl) {
- return BadAlloc;
- }
-
- cl->be_displays = calloc(screenInfo.numScreens, sizeof(Display *));
- if (!cl->be_displays) {
- free( cl );
- return BadAlloc;
- }
- }
-
- if (!cl->inUse) {
- /*
- ** This is first request from this client. Associate a resource
- ** with the client so we will be notified when the client dies.
- */
- XID xid = FakeClientID(client->index);
- if (!AddResource( xid, __glXClientRes, (pointer)(long)client->index)) {
- return BadAlloc;
- }
- ResetClientState(client->index);
- cl->inUse = GL_TRUE;
- cl->client = client;
- }
-
- /*
- ** Check for valid opcode.
- */
- if (opcode >= __GLX_SINGLE_TABLE_SIZE) {
- return BadRequest;
- }
-
- /*
- ** Use the opcode to index into the procedure table.
- */
- proc = __glXSwapSingleTable[opcode];
- return (*proc)(cl, (GLbyte *) stuff);
-}
-
-int __glXNoSuchSingleOpcode(__GLXclientState *cl, GLbyte *pc)
-{
- return BadRequest;
-}
-
-void __glXNoSuchRenderOpcode(GLbyte *pc)
-{
- return;
-}
-
+/*
+ * 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_DMX_CONFIG_H
+#include <dmx-config.h>
+#endif
+
+#include "dmx.h"
+
+#include "glxserver.h"
+#include <windowstr.h>
+#include <propertyst.h>
+#include <os.h>
+#include "g_disptab.h"
+#include "glxutil.h"
+#include "glxext.h"
+#include "glxvisuals.h"
+#include "micmap.h"
+#include "glxswap.h"
+
+/*
+** Stubs to satisfy miinitext.c references.
+*/
+typedef int __GLXprovider;
+__GLXprovider __glXDRISWRastProvider;
+void
+GlxPushProvider(__GLXprovider * provider)
+{
+}
+
+/*
+** Forward declarations.
+*/
+static int __glXSwapDispatch(ClientPtr);
+static int __glXDispatch(ClientPtr);
+
+/*
+** Called when the extension is reset.
+*/
+static void
+ResetExtension(ExtensionEntry * extEntry)
+{
+ __glXFlushContextCache();
+ __glXScreenReset();
+ SwapBarrierReset();
+}
+
+/*
+** Initialize the per-client context storage.
+*/
+static void
+ResetClientState(int clientIndex)
+{
+ __GLXclientState *cl = __glXClients[clientIndex];
+ Display **keep_be_displays;
+ int i;
+
+ free(cl->returnBuf);
+ free(cl->currentContexts);
+ free(cl->currentDrawables);
+ free(cl->largeCmdBuf);
+
+ for (i = 0; i < screenInfo.numScreens; i++) {
+ if (cl->be_displays[i])
+ XCloseDisplay(cl->be_displays[i]);
+ }
+
+ keep_be_displays = cl->be_displays;
+ memset(cl, 0, sizeof(__GLXclientState));
+ cl->be_displays = keep_be_displays;
+
+ /*
+ ** By default, assume that the client supports
+ ** GLX major version 1 minor version 0 protocol.
+ */
+ cl->GLClientmajorVersion = 1;
+ cl->GLClientminorVersion = 0;
+ free(cl->GLClientextensions);
+
+ memset(cl->be_displays, 0, screenInfo.numScreens * sizeof(Display *));
+}
+
+/*
+** This procedure is called when the client who created the context goes
+** away OR when glXDestroyContext is called. In either case, all we do is
+** flag that the ID is no longer valid, and (maybe) free the context.
+** use.
+*/
+static int
+ContextGone(__GLXcontext * cx, XID id)
+{
+ cx->idExists = GL_FALSE;
+ if (!cx->isCurrent) {
+ __glXFreeContext(cx);
+ }
+
+ return True;
+}
+
+/*
+** Free a client's state.
+*/
+static int
+ClientGone(int clientIndex, XID id)
+{
+ __GLXcontext *cx;
+ __GLXclientState *cl = __glXClients[clientIndex];
+ int i;
+
+ if (cl) {
+ /*
+ ** Free all the contexts that are current for this client.
+ */
+ for (i = 0; i < cl->numCurrentContexts; i++) {
+ cx = cl->currentContexts[i];
+ if (cx) {
+ cx->isCurrent = GL_FALSE;
+ if (!cx->idExists) {
+ __glXFreeContext(cx);
+ }
+ }
+ }
+ /*
+ ** Re-initialize the client state structure. Don't free it because
+ ** we'll probably get another client with this index and use the struct
+ ** again. There is a maximum of MAXCLIENTS of these structures.
+ */
+ ResetClientState(clientIndex);
+ }
+
+ return True;
+}
+
+/*
+** Free a GLX Pixmap.
+*/
+void
+__glXFreeGLXPixmap(__GLXpixmap * pGlxPixmap)
+{
+ if (!pGlxPixmap->idExists && !pGlxPixmap->refcnt) {
+
+ PixmapPtr pPixmap = (PixmapPtr) pGlxPixmap->pDraw;
+
+ /*
+ ** The DestroyPixmap routine should decrement the refcount and free
+ ** only if it's zero.
+ */
+ (*pGlxPixmap->pScreen->DestroyPixmap) (pPixmap);
+ free(pGlxPixmap->be_xids);
+ free(pGlxPixmap);
+ }
+
+}
+
+static int
+PixmapGone(__GLXpixmap * pGlxPixmap, XID id)
+{
+
+ pGlxPixmap->idExists = False;
+ __glXFreeGLXPixmap(pGlxPixmap);
+
+ return True;
+}
+
+void
+__glXFreeGLXWindow(__glXWindow * pGlxWindow)
+{
+ if (!pGlxWindow->idExists && !pGlxWindow->refcnt) {
+ WindowPtr pWindow = (WindowPtr) pGlxWindow->pDraw;
+ WindowPtr ret;
+
+ dixLookupResourceByType((pointer) &ret,
+ pWindow->drawable.id, RT_WINDOW,
+ NullClient, DixUnknownAccess);
+ if (ret == pWindow) {
+ (*pGlxWindow->pScreen->DestroyWindow) (pWindow);
+ }
+
+ free(pGlxWindow);
+ }
+}
+
+static void
+WindowGone(__glXWindow * pGlxWindow, XID id)
+{
+ pGlxWindow->idExists = False;
+ __glXFreeGLXWindow(pGlxWindow);
+}
+
+void
+__glXFreeGLXPbuffer(__glXPbuffer * pGlxPbuffer)
+{
+ if (!pGlxPbuffer->idExists && !pGlxPbuffer->refcnt) {
+ free(pGlxPbuffer->be_xids);
+ free(pGlxPbuffer);
+ }
+}
+
+static void
+PbufferGone(__glXPbuffer * pGlxPbuffer, XID id)
+{
+ pGlxPbuffer->idExists = False;
+ __glXFreeGLXPbuffer(pGlxPbuffer);
+}
+
+/*
+** Free a context.
+*/
+GLboolean
+__glXFreeContext(__GLXcontext * cx)
+{
+ if (cx->idExists || cx->isCurrent)
+ return GL_FALSE;
+
+ free(cx->feedbackBuf);
+ free(cx->selectBuf);
+ free(cx->real_ids);
+ free(cx->real_vids);
+
+ if (cx->pGlxPixmap) {
+ /*
+ ** The previous drawable was a glx pixmap, release it.
+ */
+ cx->pGlxPixmap->refcnt--;
+ __glXFreeGLXPixmap(cx->pGlxPixmap);
+ cx->pGlxPixmap = 0;
+ }
+
+ if (cx->pGlxReadPixmap) {
+ /*
+ ** The previous drawable was a glx pixmap, release it.
+ */
+ cx->pGlxReadPixmap->refcnt--;
+ __glXFreeGLXPixmap(cx->pGlxReadPixmap);
+ cx->pGlxReadPixmap = 0;
+ }
+
+ if (cx->pGlxWindow) {
+ /*
+ ** The previous drawable was a glx window, release it.
+ */
+ cx->pGlxWindow->refcnt--;
+ __glXFreeGLXWindow(cx->pGlxWindow);
+ cx->pGlxWindow = 0;
+ }
+
+ if (cx->pGlxReadWindow) {
+ /*
+ ** The previous drawable was a glx window, release it.
+ */
+ cx->pGlxReadWindow->refcnt--;
+ __glXFreeGLXWindow(cx->pGlxReadWindow);
+ cx->pGlxReadWindow = 0;
+ }
+
+ free(cx);
+
+ if (cx == __glXLastContext) {
+ __glXFlushContextCache();
+ }
+
+ return GL_TRUE;
+}
+
+/*
+** Initialize the GLX extension.
+*/
+void
+GlxExtensionInit(void)
+{
+ ExtensionEntry *extEntry;
+ int i;
+ int glxSupported = 1;
+
+ /*
+ // do not initialize GLX extension if GLX is not supported
+ // by ALL back-end servers.
+ */
+ for (i = 0; i < screenInfo.numScreens; i++) {
+ glxSupported &= (dmxScreens[i].glxMajorOpcode > 0);
+ }
+
+ if (!glxSupported || !dmxGLXProxy) {
+ return;
+ }
+
+ __glXContextRes = CreateNewResourceType((DeleteType) ContextGone,
+ "GLXContext");
+ __glXClientRes = CreateNewResourceType((DeleteType) ClientGone,
+ "GLXClient");
+ __glXPixmapRes = CreateNewResourceType((DeleteType) PixmapGone,
+ "GLXPixmap");
+ __glXWindowRes = CreateNewResourceType((DeleteType) WindowGone,
+ "GLXWindow");
+ __glXPbufferRes = CreateNewResourceType((DeleteType) PbufferGone,
+ "GLXPbuffer");
+
+ if (!__glXContextRes || !__glXClientRes || !__glXPixmapRes ||
+ !__glXWindowRes || !__glXPbufferRes)
+ return;
+
+ /*
+ ** Add extension to server extensions.
+ */
+ extEntry = AddExtension(GLX_EXTENSION_NAME, __GLX_NUMBER_EVENTS,
+ __GLX_NUMBER_ERRORS, __glXDispatch,
+ __glXSwapDispatch, ResetExtension,
+ StandardMinorOpcode);
+ if (!extEntry) {
+ FatalError("__glXExtensionInit: AddExtensions failed\n");
+ return;
+ }
+ /*
+ if (!AddExtensionAlias(GLX_EXTENSION_ALIAS, extEntry)) {
+ ErrorF("__glXExtensionInit: AddExtensionAlias failed\n");
+ return;
+ }
+ */
+
+ __glXerrorBase = extEntry->errorBase;
+ __glXBadContext = extEntry->errorBase + GLXBadContext;
+ __glXBadContextState = extEntry->errorBase + GLXBadContextState;
+ __glXBadDrawable = extEntry->errorBase + GLXBadDrawable;
+ __glXBadPixmap = extEntry->errorBase + GLXBadPixmap;
+ __glXBadContextTag = extEntry->errorBase + GLXBadContextTag;
+ __glXBadCurrentWindow = extEntry->errorBase + GLXBadCurrentWindow;
+ __glXBadRenderRequest = extEntry->errorBase + GLXBadRenderRequest;
+ __glXBadLargeRequest = extEntry->errorBase + GLXBadLargeRequest;
+ __glXUnsupportedPrivateRequest = extEntry->errorBase +
+ GLXUnsupportedPrivateRequest;
+ __glXBadFBConfig = extEntry->errorBase + GLXBadFBConfig;
+ __glXBadPbuffer = extEntry->errorBase + GLXBadPbuffer;
+
+ /*
+ ** Initialize table of client state. There is never a client 0.
+ */
+ for (i = 1; i <= MAXCLIENTS; i++) {
+ __glXClients[i] = 0;
+ }
+
+ /*
+ ** Initialize screen specific data.
+ */
+ __glXScreenInit(screenInfo.numScreens);
+
+ /*
+ ** Initialize swap barrier support.
+ */
+ SwapBarrierInit();
+}
+
+/************************************************************************/
+
+Bool
+__glXCoreType(void)
+{
+ return 0;
+}
+
+/************************************************************************/
+
+void
+__glXFlushContextCache(void)
+{
+ __glXLastContext = 0;
+}
+
+/************************************************************************/
+
+/*
+** Top level dispatcher; all commands are executed from here down.
+*/
+static int
+__glXDispatch(ClientPtr client)
+{
+ REQUEST(xGLXSingleReq);
+ CARD8 opcode;
+ int (*proc) (__GLXclientState * cl, GLbyte * pc);
+ __GLXclientState *cl;
+
+ opcode = stuff->glxCode;
+ cl = __glXClients[client->index];
+ if (!cl) {
+ cl = calloc(1, sizeof(__GLXclientState));
+ __glXClients[client->index] = cl;
+ if (!cl) {
+ return BadAlloc;
+ }
+
+ cl->be_displays = calloc(screenInfo.numScreens, sizeof(Display *));
+ if (!cl->be_displays) {
+ free(cl);
+ return BadAlloc;
+ }
+ }
+
+ if (!cl->inUse) {
+ /*
+ ** This is first request from this client. Associate a resource
+ ** with the client so we will be notified when the client dies.
+ */
+ XID xid = FakeClientID(client->index);
+
+ if (!AddResource(xid, __glXClientRes, (pointer) (long) client->index)) {
+ return BadAlloc;
+ }
+ ResetClientState(client->index);
+ cl->largeCmdRequestsTotal = 0;
+ cl->inUse = GL_TRUE;
+ cl->client = client;
+ }
+
+ /*
+ ** Check for valid opcode.
+ */
+ if (opcode >= __GLX_SINGLE_TABLE_SIZE) {
+ return BadRequest;
+ }
+
+ /*
+ ** Use the opcode to index into the procedure table.
+ */
+ proc = __glXSingleTable[opcode];
+ return (*proc) (cl, (GLbyte *) stuff);
+}
+
+static int
+__glXSwapDispatch(ClientPtr client)
+{
+ REQUEST(xGLXSingleReq);
+ CARD8 opcode;
+ int (*proc) (__GLXclientState * cl, GLbyte * pc);
+ __GLXclientState *cl;
+
+ opcode = stuff->glxCode;
+ cl = __glXClients[client->index];
+ if (!cl) {
+ cl = calloc(1, sizeof(__GLXclientState));
+ __glXClients[client->index] = cl;
+ if (!cl) {
+ return BadAlloc;
+ }
+
+ cl->be_displays = calloc(screenInfo.numScreens, sizeof(Display *));
+ if (!cl->be_displays) {
+ free(cl);
+ return BadAlloc;
+ }
+ }
+
+ if (!cl->inUse) {
+ /*
+ ** This is first request from this client. Associate a resource
+ ** with the client so we will be notified when the client dies.
+ */
+ XID xid = FakeClientID(client->index);
+
+ if (!AddResource(xid, __glXClientRes, (pointer) (long) client->index)) {
+ return BadAlloc;
+ }
+ ResetClientState(client->index);
+ cl->inUse = GL_TRUE;
+ cl->client = client;
+ }
+
+ /*
+ ** Check for valid opcode.
+ */
+ if (opcode >= __GLX_SINGLE_TABLE_SIZE) {
+ return BadRequest;
+ }
+
+ /*
+ ** Use the opcode to index into the procedure table.
+ */
+ proc = __glXSwapSingleTable[opcode];
+ return (*proc) (cl, (GLbyte *) stuff);
+}
+
+int
+__glXNoSuchSingleOpcode(__GLXclientState * cl, GLbyte * pc)
+{
+ return BadRequest;
+}
+
+void
+__glXNoSuchRenderOpcode(GLbyte * pc)
+{
+ return;
+}