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authormarha <marha@users.sourceforge.net>2010-05-16 20:50:58 +0000
committermarha <marha@users.sourceforge.net>2010-05-16 20:50:58 +0000
commit1c94119ae26b94a60bb2c2b33494ed43c3b8a52f (patch)
treecfe0c736c95314edac7d9f1065be9c13026ed0c1 /xorg-server/hw/dmx/glxProxy/glxscreens.c
parent6b29aa4559aeb6f795caee047561654bfa0a1954 (diff)
downloadvcxsrv-1c94119ae26b94a60bb2c2b33494ed43c3b8a52f.tar.gz
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svn merge -r588:HEAD ^/branches/released .
Diffstat (limited to 'xorg-server/hw/dmx/glxProxy/glxscreens.c')
-rw-r--r--xorg-server/hw/dmx/glxProxy/glxscreens.c754
1 files changed, 377 insertions, 377 deletions
diff --git a/xorg-server/hw/dmx/glxProxy/glxscreens.c b/xorg-server/hw/dmx/glxProxy/glxscreens.c
index 39978a74d..4c40d2315 100644
--- a/xorg-server/hw/dmx/glxProxy/glxscreens.c
+++ b/xorg-server/hw/dmx/glxProxy/glxscreens.c
@@ -1,377 +1,377 @@
-/*
- * 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 "dmxlog.h"
-
-#undef Xmalloc
-#undef Xcalloc
-#undef Xrealloc
-#undef Xfree
-
-#include "glxserver.h"
-
-#include <windowstr.h>
-
-#include "glxfbconfig.h"
-
-#ifdef PANORAMIX
-#include "panoramiXsrv.h"
-#endif
-
-__GLXscreenInfo *__glXActiveScreens;
-GLint __glXNumActiveScreens;
-
-__GLXFBConfig **__glXFBConfigs;
-int __glXNumFBConfigs;
-
-static char GLXServerVendorName[] = "SGI DMX/glxProxy";
-static char GLXServerVersion[64];
-static char GLXServerExtensions[] =
- "GLX_EXT_visual_info "
- "GLX_EXT_visual_rating "
- "GLX_EXT_import_context "
- "GLX_SGIX_fbconfig "
- "GLX_SGI_make_current_read "
- "GLX_SGI_swap_control "
- ;
-
-static char ExtensionsString[1024];
-
-static void CalcServerVersionAndExtensions( void )
-{
- int s;
- xGLXQueryVersionReq *req;
- xGLXQueryVersionReply reply;
- char **be_extensions;
- char *ext;
- char *denied_extensions;
-
- /*
- * set the server glx version to be the minimum version
- * supported by all back-end servers
- */
- __glXVersionMajor = 0;
- __glXVersionMinor = 0;
- for (s=0; s<__glXNumActiveScreens; s++) {
- DMXScreenInfo *dmxScreen = &dmxScreens[s];
- Display *dpy = dmxScreen->beDisplay;
-
- /* Send the glXQueryVersion request */
- LockDisplay(dpy);
- GetReq(GLXQueryVersion,req);
- req->reqType = dmxScreen->glxMajorOpcode;
- req->glxCode = X_GLXQueryVersion;
- req->majorVersion = GLX_SERVER_MAJOR_VERSION;
- req->minorVersion = GLX_SERVER_MINOR_VERSION;
- _XReply(dpy, (xReply*) &reply, 0, False);
- UnlockDisplay(dpy);
- SyncHandle();
-
- if (s == 0) {
- __glXVersionMajor = reply.majorVersion;
- __glXVersionMinor = reply.minorVersion;
- }
- else {
- if (reply.majorVersion < __glXVersionMajor) {
- __glXVersionMajor = reply.majorVersion;
- __glXVersionMinor = reply.minorVersion;
- }
- else if ( (reply.majorVersion == __glXVersionMajor) &&
- (reply.minorVersion < __glXVersionMinor) ) {
- __glXVersionMinor = reply.minorVersion;
- }
- }
-
- }
-
- if (GLX_SERVER_MAJOR_VERSION < __glXVersionMajor) {
- __glXVersionMajor = GLX_SERVER_MAJOR_VERSION;
- __glXVersionMinor = GLX_SERVER_MINOR_VERSION;
- }
- else if ( (GLX_SERVER_MAJOR_VERSION == __glXVersionMajor) &&
- (GLX_SERVER_MINOR_VERSION < __glXVersionMinor) ) {
- __glXVersionMinor = GLX_SERVER_MINOR_VERSION;
- }
-
- sprintf(GLXServerVersion, "%d.%d DMX %d back-end server(s)",
- __glXVersionMajor, __glXVersionMinor, __glXNumActiveScreens );
- /*
- * set the ExtensionsString to the minimum extensions string
- */
- ExtensionsString[0] = '\0';
-
- /*
- * read extensions strings of all back-end servers
- */
- be_extensions = (char **)Xalloc( __glXNumActiveScreens * sizeof(char *) );
- if (!be_extensions)
- return;
-
- for (s=0; s<__glXNumActiveScreens; s++) {
- DMXScreenInfo *dmxScreen = &dmxScreens[s];
- Display *dpy = dmxScreen->beDisplay;
- xGLXQueryServerStringReq *req;
- xGLXQueryServerStringReply reply;
- int length, numbytes, slop;
-
- /* Send the glXQueryServerString request */
- LockDisplay(dpy);
- GetReq(GLXQueryServerString,req);
- req->reqType = dmxScreen->glxMajorOpcode;
- req->glxCode = X_GLXQueryServerString;
- req->screen = DefaultScreen(dpy);
- req->name = GLX_EXTENSIONS;
- _XReply(dpy, (xReply*) &reply, 0, False);
-
- length = (int)reply.length;
- numbytes = (int)reply.n;
- slop = numbytes * __GLX_SIZE_INT8 & 3;
- be_extensions[s] = (char *)Xalloc(numbytes);
- if (!be_extensions[s]) {
- /* Throw data on the floor */
- _XEatData(dpy, length);
- } else {
- _XRead(dpy, (char *)be_extensions[s], numbytes);
- if (slop) _XEatData(dpy,4-slop);
- }
- UnlockDisplay(dpy);
- SyncHandle();
- }
-
- /*
- * extensions string will include only extensions that our
- * server supports as well as all back-end servers supports.
- * extensions that are in the DMX_DENY_EXTENSIONS string will
- * not be supported.
- */
- denied_extensions = getenv("DMX_DENY_GLX_EXTENSIONS");
- ext = strtok(GLXServerExtensions, " ");
- while( ext ) {
- int supported = 1;
-
- if (denied_extensions && strstr(denied_extensions, ext)) {
- supported = 0;
- }
- else {
- for (s=0; s<__glXNumActiveScreens && supported; s++) {
- if ( !strstr(be_extensions[s], ext) ) {
- supported = 0;
- }
- }
- }
-
- if (supported) {
- strcat(ExtensionsString, ext);
- strcat(ExtensionsString, " ");
- }
-
- ext = strtok(NULL, " ");
- }
-
- /*
- * release temporary storage
- */
- for (s=0; s<__glXNumActiveScreens; s++) {
- if (be_extensions[s]) Xfree(be_extensions[s]);
- }
- Xfree( be_extensions );
-
- if (dmxGLXSwapGroupSupport) {
- if (!denied_extensions ||
- !strstr(denied_extensions, "GLX_SGIX_swap_group")) {
- strcat(ExtensionsString, "GLX_SGIX_swap_group");
- if (!denied_extensions ||
- !strstr(denied_extensions, "GLX_SGIX_swap_barrier")) {
- strcat(ExtensionsString, " GLX_SGIX_swap_barrier");
- }
- }
- }
-
-}
-
-void __glXScreenInit(GLint numscreens)
-{
- int s;
- int c;
- DMXScreenInfo *dmxScreen0 = &dmxScreens[0];
- __glXNumActiveScreens = numscreens;
-
-
- CalcServerVersionAndExtensions();
-
-
- __glXFBConfigs = NULL;
- __glXNumFBConfigs = 0;
-
- if ( (__glXVersionMajor == 1 && __glXVersionMinor >= 3) ||
- (__glXVersionMajor > 1) ||
- ( strstr(ExtensionsString, "GLX_SGIX_fbconfig") ) ) {
-
- /*
- // Initialize FBConfig info.
- // find the set of FBConfigs that are present on all back-end
- // servers - only those configs will be supported
- */
- __glXFBConfigs = (__GLXFBConfig **)Xalloc( dmxScreen0->numFBConfigs *
- (numscreens+1) * sizeof(__GLXFBConfig *) );
- __glXNumFBConfigs = 0;
-
- for (c=0; c<dmxScreen0->numFBConfigs; c++) {
- __GLXFBConfig *cfg = NULL;
-
- if (numscreens > 1) {
- for (s=1; s<numscreens; s++) {
- DMXScreenInfo *dmxScreen = &dmxScreens[s];
- __GLXscreenInfo *glxScreen = &__glXActiveScreens[s];
-
- cfg = FindMatchingFBConfig( &dmxScreen0->fbconfigs[c],
- dmxScreen->fbconfigs,
- dmxScreen->numFBConfigs );
- __glXFBConfigs[ __glXNumFBConfigs * (numscreens+1) + s + 1 ] = cfg;
- if (!cfg) {
- dmxLog(dmxInfo,"screen0 FBConfig 0x%x is missing on screen#%d\n", dmxScreen0->fbconfigs[c].id, s);
- break;
- }
- else {
- dmxLog(dmxInfo,"screen0 FBConfig 0x%x matched to 0x%x on screen#%d\n", dmxScreen0->fbconfigs[c].id, cfg->id, s);
- }
- }
- }
- else {
- cfg = &dmxScreen0->fbconfigs[c];
- }
-
- if (cfg) {
-
- /* filter out overlay visuals */
- if (cfg->level == 0) {
- __GLXFBConfig *proxy_cfg;
-
- __glXFBConfigs[ __glXNumFBConfigs * (numscreens+1) + 1 ] =
- &dmxScreen0->fbconfigs[c];
-
- proxy_cfg = Xalloc( sizeof(__GLXFBConfig) );
- memcpy( proxy_cfg, cfg, sizeof(__GLXFBConfig) );
- proxy_cfg->id = FakeClientID(0);
- /* visual will be associated later in __glXGetFBConfigs */
- proxy_cfg->associatedVisualId = (unsigned int)-1;
-
- __glXFBConfigs[ __glXNumFBConfigs * (numscreens+1) + 0 ] = proxy_cfg;
-
- __glXNumFBConfigs++;
- }
-
- }
-
- }
-
- }
-
-}
-
-void __glXScreenReset(void)
-{
- __glXNumActiveScreens = 0;
-}
-
-char *__glXGetServerString( unsigned int name )
-{
- char *ret = NULL;
-
- switch( name) {
-
- case GLX_VENDOR:
- ret = GLXServerVendorName;
- break;
-
- case GLX_VERSION:
- ret = GLXServerVersion;
- break;
-
- case GLX_EXTENSIONS:
- ret = ExtensionsString;
- break;
-
- default:
- break;
- }
-
- return( ret );
-
-}
-
-
-__GLXFBConfig *glxLookupFBConfig( GLXFBConfigID id )
-{
- int i,j;
-
- for (i=0, j=0; i<__glXNumFBConfigs; i++,j+=(__glXNumActiveScreens+1) ) {
- if ( __glXFBConfigs[j]->id == id)
- return( __glXFBConfigs[j] );
- }
-
- return(NULL);
-}
-
-__GLXFBConfig *glxLookupFBConfigByVID( VisualID vid )
-{
- int i,j;
-
- for (i=0, j=0; i<__glXNumFBConfigs; i++,j+=(__glXNumActiveScreens+1) ) {
- if ( __glXFBConfigs[j]->associatedVisualId == vid)
- return( __glXFBConfigs[j] );
- }
-
- return(NULL);
-}
-
-__GLXFBConfig *glxLookupBackEndFBConfig( GLXFBConfigID id, int screen )
-{
- int i;
- int j;
-
- for (i=0, j=0; i<__glXNumFBConfigs; i++,j+=(__glXNumActiveScreens+1) ) {
- if ( __glXFBConfigs[j]->id == id)
- return( __glXFBConfigs[j+screen+1] );
- }
-
- return(NULL);
-
-}
-
-int glxIsExtensionSupported( char *ext )
-{
- return( strstr(ExtensionsString, ext) != NULL );
-}
+/*
+ * 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 "dmxlog.h"
+
+#undef Xmalloc
+#undef Xcalloc
+#undef Xrealloc
+#undef Xfree
+
+#include "glxserver.h"
+
+#include <windowstr.h>
+
+#include "glxfbconfig.h"
+
+#ifdef PANORAMIX
+#include "panoramiXsrv.h"
+#endif
+
+__GLXscreenInfo *__glXActiveScreens;
+GLint __glXNumActiveScreens;
+
+__GLXFBConfig **__glXFBConfigs;
+int __glXNumFBConfigs;
+
+static char GLXServerVendorName[] = "SGI DMX/glxProxy";
+static char GLXServerVersion[64];
+static char GLXServerExtensions[] =
+ "GLX_EXT_visual_info "
+ "GLX_EXT_visual_rating "
+ "GLX_EXT_import_context "
+ "GLX_SGIX_fbconfig "
+ "GLX_SGI_make_current_read "
+ "GLX_SGI_swap_control "
+ ;
+
+static char ExtensionsString[1024];
+
+static void CalcServerVersionAndExtensions( void )
+{
+ int s;
+ xGLXQueryVersionReq *req;
+ xGLXQueryVersionReply reply;
+ char **be_extensions;
+ char *ext;
+ char *denied_extensions;
+
+ /*
+ * set the server glx version to be the minimum version
+ * supported by all back-end servers
+ */
+ __glXVersionMajor = 0;
+ __glXVersionMinor = 0;
+ for (s=0; s<__glXNumActiveScreens; s++) {
+ DMXScreenInfo *dmxScreen = &dmxScreens[s];
+ Display *dpy = dmxScreen->beDisplay;
+
+ /* Send the glXQueryVersion request */
+ LockDisplay(dpy);
+ GetReq(GLXQueryVersion,req);
+ req->reqType = dmxScreen->glxMajorOpcode;
+ req->glxCode = X_GLXQueryVersion;
+ req->majorVersion = GLX_SERVER_MAJOR_VERSION;
+ req->minorVersion = GLX_SERVER_MINOR_VERSION;
+ _XReply(dpy, (xReply*) &reply, 0, False);
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ if (s == 0) {
+ __glXVersionMajor = reply.majorVersion;
+ __glXVersionMinor = reply.minorVersion;
+ }
+ else {
+ if (reply.majorVersion < __glXVersionMajor) {
+ __glXVersionMajor = reply.majorVersion;
+ __glXVersionMinor = reply.minorVersion;
+ }
+ else if ( (reply.majorVersion == __glXVersionMajor) &&
+ (reply.minorVersion < __glXVersionMinor) ) {
+ __glXVersionMinor = reply.minorVersion;
+ }
+ }
+
+ }
+
+ if (GLX_SERVER_MAJOR_VERSION < __glXVersionMajor) {
+ __glXVersionMajor = GLX_SERVER_MAJOR_VERSION;
+ __glXVersionMinor = GLX_SERVER_MINOR_VERSION;
+ }
+ else if ( (GLX_SERVER_MAJOR_VERSION == __glXVersionMajor) &&
+ (GLX_SERVER_MINOR_VERSION < __glXVersionMinor) ) {
+ __glXVersionMinor = GLX_SERVER_MINOR_VERSION;
+ }
+
+ sprintf(GLXServerVersion, "%d.%d DMX %d back-end server(s)",
+ __glXVersionMajor, __glXVersionMinor, __glXNumActiveScreens );
+ /*
+ * set the ExtensionsString to the minimum extensions string
+ */
+ ExtensionsString[0] = '\0';
+
+ /*
+ * read extensions strings of all back-end servers
+ */
+ be_extensions = (char **)malloc( __glXNumActiveScreens * sizeof(char *) );
+ if (!be_extensions)
+ return;
+
+ for (s=0; s<__glXNumActiveScreens; s++) {
+ DMXScreenInfo *dmxScreen = &dmxScreens[s];
+ Display *dpy = dmxScreen->beDisplay;
+ xGLXQueryServerStringReq *req;
+ xGLXQueryServerStringReply reply;
+ int length, numbytes, slop;
+
+ /* Send the glXQueryServerString request */
+ LockDisplay(dpy);
+ GetReq(GLXQueryServerString,req);
+ req->reqType = dmxScreen->glxMajorOpcode;
+ req->glxCode = X_GLXQueryServerString;
+ req->screen = DefaultScreen(dpy);
+ req->name = GLX_EXTENSIONS;
+ _XReply(dpy, (xReply*) &reply, 0, False);
+
+ length = (int)reply.length;
+ numbytes = (int)reply.n;
+ slop = numbytes * __GLX_SIZE_INT8 & 3;
+ be_extensions[s] = (char *)malloc(numbytes);
+ if (!be_extensions[s]) {
+ /* Throw data on the floor */
+ _XEatData(dpy, length);
+ } else {
+ _XRead(dpy, (char *)be_extensions[s], numbytes);
+ if (slop) _XEatData(dpy,4-slop);
+ }
+ UnlockDisplay(dpy);
+ SyncHandle();
+ }
+
+ /*
+ * extensions string will include only extensions that our
+ * server supports as well as all back-end servers supports.
+ * extensions that are in the DMX_DENY_EXTENSIONS string will
+ * not be supported.
+ */
+ denied_extensions = getenv("DMX_DENY_GLX_EXTENSIONS");
+ ext = strtok(GLXServerExtensions, " ");
+ while( ext ) {
+ int supported = 1;
+
+ if (denied_extensions && strstr(denied_extensions, ext)) {
+ supported = 0;
+ }
+ else {
+ for (s=0; s<__glXNumActiveScreens && supported; s++) {
+ if ( !strstr(be_extensions[s], ext) ) {
+ supported = 0;
+ }
+ }
+ }
+
+ if (supported) {
+ strcat(ExtensionsString, ext);
+ strcat(ExtensionsString, " ");
+ }
+
+ ext = strtok(NULL, " ");
+ }
+
+ /*
+ * release temporary storage
+ */
+ for (s=0; s<__glXNumActiveScreens; s++) {
+ if (be_extensions[s]) Xfree(be_extensions[s]);
+ }
+ Xfree( be_extensions );
+
+ if (dmxGLXSwapGroupSupport) {
+ if (!denied_extensions ||
+ !strstr(denied_extensions, "GLX_SGIX_swap_group")) {
+ strcat(ExtensionsString, "GLX_SGIX_swap_group");
+ if (!denied_extensions ||
+ !strstr(denied_extensions, "GLX_SGIX_swap_barrier")) {
+ strcat(ExtensionsString, " GLX_SGIX_swap_barrier");
+ }
+ }
+ }
+
+}
+
+void __glXScreenInit(GLint numscreens)
+{
+ int s;
+ int c;
+ DMXScreenInfo *dmxScreen0 = &dmxScreens[0];
+ __glXNumActiveScreens = numscreens;
+
+
+ CalcServerVersionAndExtensions();
+
+
+ __glXFBConfigs = NULL;
+ __glXNumFBConfigs = 0;
+
+ if ( (__glXVersionMajor == 1 && __glXVersionMinor >= 3) ||
+ (__glXVersionMajor > 1) ||
+ ( strstr(ExtensionsString, "GLX_SGIX_fbconfig") ) ) {
+
+ /*
+ // Initialize FBConfig info.
+ // find the set of FBConfigs that are present on all back-end
+ // servers - only those configs will be supported
+ */
+ __glXFBConfigs = (__GLXFBConfig **)malloc( dmxScreen0->numFBConfigs *
+ (numscreens+1) * sizeof(__GLXFBConfig *) );
+ __glXNumFBConfigs = 0;
+
+ for (c=0; c<dmxScreen0->numFBConfigs; c++) {
+ __GLXFBConfig *cfg = NULL;
+
+ if (numscreens > 1) {
+ for (s=1; s<numscreens; s++) {
+ DMXScreenInfo *dmxScreen = &dmxScreens[s];
+ __GLXscreenInfo *glxScreen = &__glXActiveScreens[s];
+
+ cfg = FindMatchingFBConfig( &dmxScreen0->fbconfigs[c],
+ dmxScreen->fbconfigs,
+ dmxScreen->numFBConfigs );
+ __glXFBConfigs[ __glXNumFBConfigs * (numscreens+1) + s + 1 ] = cfg;
+ if (!cfg) {
+ dmxLog(dmxInfo,"screen0 FBConfig 0x%x is missing on screen#%d\n", dmxScreen0->fbconfigs[c].id, s);
+ break;
+ }
+ else {
+ dmxLog(dmxInfo,"screen0 FBConfig 0x%x matched to 0x%x on screen#%d\n", dmxScreen0->fbconfigs[c].id, cfg->id, s);
+ }
+ }
+ }
+ else {
+ cfg = &dmxScreen0->fbconfigs[c];
+ }
+
+ if (cfg) {
+
+ /* filter out overlay visuals */
+ if (cfg->level == 0) {
+ __GLXFBConfig *proxy_cfg;
+
+ __glXFBConfigs[ __glXNumFBConfigs * (numscreens+1) + 1 ] =
+ &dmxScreen0->fbconfigs[c];
+
+ proxy_cfg = malloc( sizeof(__GLXFBConfig) );
+ memcpy( proxy_cfg, cfg, sizeof(__GLXFBConfig) );
+ proxy_cfg->id = FakeClientID(0);
+ /* visual will be associated later in __glXGetFBConfigs */
+ proxy_cfg->associatedVisualId = (unsigned int)-1;
+
+ __glXFBConfigs[ __glXNumFBConfigs * (numscreens+1) + 0 ] = proxy_cfg;
+
+ __glXNumFBConfigs++;
+ }
+
+ }
+
+ }
+
+ }
+
+}
+
+void __glXScreenReset(void)
+{
+ __glXNumActiveScreens = 0;
+}
+
+char *__glXGetServerString( unsigned int name )
+{
+ char *ret = NULL;
+
+ switch( name) {
+
+ case GLX_VENDOR:
+ ret = GLXServerVendorName;
+ break;
+
+ case GLX_VERSION:
+ ret = GLXServerVersion;
+ break;
+
+ case GLX_EXTENSIONS:
+ ret = ExtensionsString;
+ break;
+
+ default:
+ break;
+ }
+
+ return( ret );
+
+}
+
+
+__GLXFBConfig *glxLookupFBConfig( GLXFBConfigID id )
+{
+ int i,j;
+
+ for (i=0, j=0; i<__glXNumFBConfigs; i++,j+=(__glXNumActiveScreens+1) ) {
+ if ( __glXFBConfigs[j]->id == id)
+ return( __glXFBConfigs[j] );
+ }
+
+ return(NULL);
+}
+
+__GLXFBConfig *glxLookupFBConfigByVID( VisualID vid )
+{
+ int i,j;
+
+ for (i=0, j=0; i<__glXNumFBConfigs; i++,j+=(__glXNumActiveScreens+1) ) {
+ if ( __glXFBConfigs[j]->associatedVisualId == vid)
+ return( __glXFBConfigs[j] );
+ }
+
+ return(NULL);
+}
+
+__GLXFBConfig *glxLookupBackEndFBConfig( GLXFBConfigID id, int screen )
+{
+ int i;
+ int j;
+
+ for (i=0, j=0; i<__glXNumFBConfigs; i++,j+=(__glXNumActiveScreens+1) ) {
+ if ( __glXFBConfigs[j]->id == id)
+ return( __glXFBConfigs[j+screen+1] );
+ }
+
+ return(NULL);
+
+}
+
+int glxIsExtensionSupported( char *ext )
+{
+ return( strstr(ExtensionsString, ext) != NULL );
+}