387 lines
10 KiB
C
387 lines
10 KiB
C
|
/* $XFree86: xc/programs/Xserver/GL/glx/glxscreens.c,v 1.6 2001/03/21 16:29:36 dawes Exp $ */
|
||
|
/*
|
||
|
** 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.
|
||
|
**
|
||
|
*/
|
||
|
|
||
|
#include "dmx.h"
|
||
|
#include "dmxlog.h"
|
||
|
|
||
|
#undef Xmalloc
|
||
|
#undef Xcalloc
|
||
|
#undef Xrealloc
|
||
|
#undef Xfree
|
||
|
|
||
|
#include "glxserver.h"
|
||
|
|
||
|
#ifdef IN_MODULE
|
||
|
#include <xf86_ansic.h>
|
||
|
#else
|
||
|
#include <string.h>
|
||
|
#include <signal.h>
|
||
|
#endif
|
||
|
|
||
|
#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 );
|
||
|
}
|