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xenocara/xserver/hw/dmx/glxProxy/glxcmds.c
matthieu a77e9959f3 Update to xserver 1.20.5. Tested by jsg@
2019-07-27 07:57:06 +00:00

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/*
* 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 "dmxwindow.h"
#include "dmxpixmap.h"
#include "dmxfont.h"
#include "dmxsync.h"
#include "glxserver.h"
#include "g_disptab.h"
#include <pixmapstr.h>
#include <windowstr.h>
#include "glxutil.h"
#include "glxext.h"
#include "unpack.h"
#include "GL/glxproto.h"
#include "glxvendor.h"
#include "glxvisuals.h"
#include "glxswap.h"
#include "glxcmds.h"
#ifdef PANORAMIX
#include "panoramiXsrv.h"
#endif
extern __GLXFBConfig **__glXFBConfigs;
extern int __glXNumFBConfigs;
extern int __glXGetFBConfigsSGIX(__GLXclientState * cl, GLbyte * pc);
#define BE_TO_CLIENT_ERROR(x) \
( (x) >= __glXerrorBase ? \
(x) - dmxScreen->glxErrorBase + __glXerrorBase \
: (x) )
static __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;
}
static __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;
}
static __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;
}
Display *
GetBackEndDisplay(__GLXclientState * cl, int s)
{
if (!cl->be_displays[s]) {
cl->be_displays[s] =
XOpenDisplay(DisplayString(dmxScreens[s].beDisplay));
}
return cl->be_displays[s];
}
/**
* Convert the render type bits from fbconfig into context render type.
*/
static int
renderTypeBitsToRenderTypeEnum(int fbRenderType)
{
if (fbRenderType & GLX_RGBA_BIT)
return GLX_RGBA_TYPE;
if (fbRenderType & GLX_COLOR_INDEX_BIT)
return GLX_COLOR_INDEX_TYPE;
if (fbRenderType & GLX_RGBA_FLOAT_BIT_ARB)
return GLX_RGBA_FLOAT_TYPE_ARB;
if (fbRenderType & GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT)
return GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT;
/* There's no recognized renderType in the config */
return GLX_RGBA_TYPE;
}
/*
** Create a GL context with the given properties.
*/
static int
CreateContext(__GLXclientState * cl,
GLXContextID gcId,
VisualID vid, GLXFBConfigID fbconfigId,
int screen, GLXContextID shareList, int isDirect)
{
ClientPtr client = cl->client;
xGLXCreateContextReq *be_req;
xGLXCreateNewContextReq *be_new_req;
VisualPtr pVisual;
ScreenPtr pScreen;
__GLXcontext *glxc, *shareglxc;
__GLXvisualConfig *pGlxVisual;
__GLXscreenInfo *pGlxScreen;
VisualID visual = vid;
GLint i;
int from_screen = screen;
int to_screen = screen;
DMXScreenInfo *dmxScreen;
VisualID be_vid = 0;
GLXFBConfigID be_fbconfigId = 0;
int num_be_screens;
Display *dpy;
/*
** Check if screen exists.
*/
if (screen >= screenInfo.numScreens) {
client->errorValue = screen;
return BadValue;
}
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
}
#endif
/*
** Find the display list space that we want to share.
**
*/
if (shareList == None) {
shareglxc = NULL;
}
else {
dixLookupResourceByType((void **) &shareglxc, shareList,
__glXContextRes, NullClient, DixUnknownAccess);
if (!shareglxc) {
client->errorValue = shareList;
return __glXBadContext;
}
}
/*
** Allocate memory for the new context
*/
glxc = calloc(1, sizeof(__GLXcontext));
if (!glxc) {
return BadAlloc;
}
pScreen = screenInfo.screens[screen];
pGlxScreen = &__glXActiveScreens[screen];
if (fbconfigId != None) {
glxc->pFBConfig = glxLookupFBConfig(fbconfigId);
if (!glxc->pFBConfig) {
client->errorValue = fbconfigId;
free(glxc);
return BadValue;
}
visual = glxc->pFBConfig->associatedVisualId;
}
else {
glxc->pFBConfig = NULL;
}
if (visual != None) {
/*
** Check if the visual ID is valid for this screen.
*/
pVisual = pScreen->visuals;
for (i = 0; i < pScreen->numVisuals; i++, pVisual++) {
if (pVisual->vid == visual) {
break;
}
}
if (i == pScreen->numVisuals) {
client->errorValue = visual;
free(glxc);
return BadValue;
}
pGlxVisual = pGlxScreen->pGlxVisual;
for (i = 0; i < pGlxScreen->numVisuals; i++, pGlxVisual++) {
if (pGlxVisual->vid == visual) {
break;
}
}
if (i == pGlxScreen->numVisuals) {
/*
** Visual not support on this screen by this OpenGL implementation.
*/
client->errorValue = visual;
free(glxc);
return BadValue;
}
if (glxc->pFBConfig == NULL) {
glxc->pFBConfig = glxLookupFBConfigByVID(visual);
if (glxc->pFBConfig == NULL) {
/*
* visual does not have an FBConfig ???
client->errorValue = visual;
free( glxc );
return BadValue;
*/
}
}
}
else {
pVisual = NULL;
pGlxVisual = NULL;
}
glxc->pScreen = pScreen;
glxc->pGlxScreen = pGlxScreen;
glxc->pVisual = pVisual;
glxc->pGlxVisual = pGlxVisual;
/*
* allocate memory for back-end servers info
*/
num_be_screens = to_screen - from_screen + 1;
glxc->real_ids = xallocarray(num_be_screens, sizeof(XID));
if (!glxc->real_ids) {
return BadAlloc;
}
glxc->real_vids = xallocarray(num_be_screens, sizeof(XID));
if (!glxc->real_vids) {
return BadAlloc;
}
for (screen = from_screen; screen <= to_screen; screen++) {
int sent = 0;
pScreen = screenInfo.screens[screen];
pGlxScreen = &__glXActiveScreens[screen];
dmxScreen = &dmxScreens[screen];
if (glxc->pFBConfig) {
__GLXFBConfig *beFBConfig =
glxLookupBackEndFBConfig(glxc->pFBConfig->id,
screen);
be_fbconfigId = beFBConfig->id;
}
if (pGlxVisual) {
be_vid = glxMatchGLXVisualInConfigList(pGlxVisual,
dmxScreen->glxVisuals,
dmxScreen->numGlxVisuals);
if (!be_vid) {
/* visual is not supported on the back-end server */
free(glxc->real_ids);
free(glxc->real_vids);
free(glxc);
return BadValue;
}
}
glxc->real_ids[screen - from_screen] =
XAllocID(GetBackEndDisplay(cl, screen));
/* send the create context request to the back-end server */
dpy = GetBackEndDisplay(cl, screen);
if (glxc->pFBConfig) {
/* For a specific visual, multiple render types (i.e., both RGB
* and COLOR INDEX) can be accessible. The only parameter to
* choose the renderType should be the class of the colormap,
* since the first classes do not support RGB mode (only COLOR
* INDEX), and TrueColor and DirectColor do not support COLOR
* INDEX.
*/
int renderType = GLX_RGBA_TYPE;
if (pVisual) {
switch (pVisual->class) {
case PseudoColor:
case StaticColor:
case GrayScale:
case StaticGray:
renderType = GLX_COLOR_INDEX_TYPE;
break;
case TrueColor:
case DirectColor:
default:
renderType = GLX_RGBA_TYPE;
break;
}
} else {
renderType =
renderTypeBitsToRenderTypeEnum(glxc->pFBConfig->renderType);
}
if (__GLX_IS_VERSION_SUPPORTED(1, 3)) {
LockDisplay(dpy);
GetReq(GLXCreateNewContext, be_new_req);
be_new_req->reqType = dmxScreen->glxMajorOpcode;
be_new_req->glxCode = X_GLXCreateNewContext;
be_new_req->context =
(unsigned int) glxc->real_ids[screen - from_screen];
be_new_req->fbconfig = (unsigned int) be_fbconfigId;
be_new_req->screen = DefaultScreen(dpy);
be_new_req->renderType = renderType;
be_new_req->shareList =
(shareglxc ? shareglxc->real_ids[screen - from_screen] : 0);
be_new_req->isDirect = 0;
UnlockDisplay(dpy);
glxc->real_vids[screen - from_screen] = be_fbconfigId;
sent = 1;
}
else if (glxIsExtensionSupported("GLX_SGIX_fbconfig")) {
xGLXCreateContextWithConfigSGIXReq *ext_req;
xGLXVendorPrivateReq *vpreq;
LockDisplay(dpy);
GetReqExtra(GLXVendorPrivate,
sz_xGLXCreateContextWithConfigSGIXReq -
sz_xGLXVendorPrivateReq, vpreq);
ext_req = (xGLXCreateContextWithConfigSGIXReq *) vpreq;
ext_req->reqType = dmxScreen->glxMajorOpcode;
ext_req->glxCode = X_GLXVendorPrivate;
ext_req->vendorCode = X_GLXvop_CreateContextWithConfigSGIX;
ext_req->context =
(unsigned int) glxc->real_ids[screen - from_screen];
ext_req->fbconfig = (unsigned int) be_fbconfigId;
ext_req->screen = DefaultScreen(dpy);
ext_req->renderType = renderType;
ext_req->shareList =
(shareglxc ? shareglxc->real_ids[screen - from_screen] : 0);
ext_req->isDirect = 0;
UnlockDisplay(dpy);
glxc->real_vids[screen - from_screen] = be_fbconfigId;
sent = 1;
}
}
if (!sent) {
LockDisplay(dpy);
GetReq(GLXCreateContext, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXCreateContext;
be_req->context =
(unsigned int) glxc->real_ids[screen - from_screen];
be_req->visual = (unsigned int) be_vid;
be_req->screen = DefaultScreen(dpy);
be_req->shareList =
(shareglxc ? shareglxc->real_ids[screen - from_screen] : 0);
be_req->isDirect = 0;
UnlockDisplay(dpy);
glxc->real_vids[screen - from_screen] = be_vid;
}
SyncHandle();
}
/*
** Register this context as a resource.
*/
if (!AddResource(gcId, __glXContextRes, (void *) glxc)) {
free(glxc->real_ids);
free(glxc->real_vids);
free(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;
return Success;
}
int
__glXCreateContext(__GLXclientState * cl, GLbyte * pc)
{
xGLXCreateContextReq *req = (xGLXCreateContextReq *) pc;
return (CreateContext(cl, req->context, req->visual, None,
req->screen, req->shareList, req->isDirect));
}
int
__glXCreateNewContext(__GLXclientState * cl, GLbyte * pc)
{
xGLXCreateNewContextReq *req = (xGLXCreateNewContextReq *) pc;
return (CreateContext(cl, req->context, None, req->fbconfig,
req->screen, req->shareList, req->isDirect));
}
int
__glXCreateContextWithConfigSGIX(__GLXclientState * cl, GLbyte * pc)
{
xGLXCreateContextWithConfigSGIXReq *req =
(xGLXCreateContextWithConfigSGIXReq *) pc;
return (CreateContext(cl, req->context, None, req->fbconfig,
req->screen, req->shareList, req->isDirect));
}
int
__glXQueryMaxSwapBarriersSGIX(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXQueryMaxSwapBarriersSGIXReq *req =
(xGLXQueryMaxSwapBarriersSGIXReq *) pc;
xGLXQueryMaxSwapBarriersSGIXReply reply = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0,
.max = QueryMaxSwapBarriersSGIX(req->screen)
};
if (client->swapped) {
__glXSwapQueryMaxSwapBarriersSGIXReply(client, &reply);
}
else {
WriteToClient(client, sz_xGLXQueryMaxSwapBarriersSGIXReply, &reply);
}
return Success;
}
int
__glXBindSwapBarrierSGIX(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXBindSwapBarrierSGIXReq *req = (xGLXBindSwapBarrierSGIXReq *) pc;
DrawablePtr pDraw;
__GLXpixmap *pGlxPixmap = NULL;
__glXWindow *pGlxWindow = NULL;
int rc;
rc = dixLookupDrawable(&pDraw, req->drawable, client, 0, DixGetAttrAccess);
if (rc != Success) {
dixLookupResourceByType((void **) &pGlxPixmap, req->drawable,
__glXPixmapRes, NullClient, DixUnknownAccess);
if (pGlxPixmap)
pDraw = pGlxPixmap->pDraw;
}
if (!pDraw && __GLX_IS_VERSION_SUPPORTED(1, 3)) {
dixLookupResourceByType((void **) &pGlxWindow, req->drawable,
__glXWindowRes, NullClient, DixUnknownAccess);
if (pGlxWindow)
pDraw = pGlxWindow->pDraw;
}
if (!pDraw) {
client->errorValue = req->drawable;
return __glXBadDrawable;
}
return BindSwapBarrierSGIX(pDraw, req->barrier);
}
int
__glXJoinSwapGroupSGIX(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXJoinSwapGroupSGIXReq *req = (xGLXJoinSwapGroupSGIXReq *) pc;
DrawablePtr pDraw, pMember = NULL;
__GLXpixmap *pGlxPixmap = NULL;
__glXWindow *pGlxWindow = NULL;
int rc;
rc = dixLookupDrawable(&pDraw, req->drawable, client, 0, DixManageAccess);
if (rc != Success) {
dixLookupResourceByType((void **) &pGlxPixmap, req->drawable,
__glXPixmapRes, NullClient, DixUnknownAccess);
if (pGlxPixmap)
pDraw = pGlxPixmap->pDraw;
}
if (!pDraw && __GLX_IS_VERSION_SUPPORTED(1, 3)) {
dixLookupResourceByType((void **) &pGlxWindow, req->drawable,
__glXWindowRes, NullClient, DixUnknownAccess);
if (pGlxWindow)
pDraw = pGlxWindow->pDraw;
}
if (!pDraw) {
client->errorValue = req->drawable;
return __glXBadDrawable;
}
if (req->member != None) {
rc = dixLookupDrawable(&pMember, req->member, client, 0,
DixGetAttrAccess);
if (rc != Success) {
dixLookupResourceByType((void **) &pGlxPixmap, req->member,
__glXPixmapRes, NullClient,
DixUnknownAccess);
if (pGlxPixmap)
pMember = pGlxPixmap->pDraw;
}
if (!pMember && __GLX_IS_VERSION_SUPPORTED(1, 3)) {
dixLookupResourceByType((void **) &pGlxWindow, req->member,
__glXWindowRes, NullClient,
DixUnknownAccess);
if (pGlxWindow)
pMember = pGlxWindow->pDraw;
}
if (!pMember) {
client->errorValue = req->member;
return __glXBadDrawable;
}
}
return JoinSwapGroupSGIX(pDraw, pMember);
}
/*
** Destroy a GL context as an X resource.
*/
int
__glXDestroyContext(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXDestroyContextReq *req = (xGLXDestroyContextReq *) pc;
xGLXDestroyContextReq *be_req;
GLXContextID gcId = req->context;
__GLXcontext *glxc;
int from_screen = 0;
int to_screen = 0;
int s;
dixLookupResourceByType((void **) &glxc, gcId, __glXContextRes,
NullClient, DixUnknownAccess);
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);
from_screen = to_screen = glxc->pScreen->myNum;
}
else {
client->errorValue = gcId;
return __glXBadContext;
}
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
}
#endif
/*
* send DestroyContext request to all back-end servers
*/
for (s = from_screen; s <= to_screen; s++) {
DMXScreenInfo *dmxScreen = &dmxScreens[s];
Display *dpy = GetBackEndDisplay(cl, s);
LockDisplay(dpy);
GetReq(GLXDestroyContext, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXDestroyContext;
be_req->context = glxc->real_ids[s - from_screen];
UnlockDisplay(dpy);
SyncHandle();
}
return Success;
}
/*****************************************************************************/
/*
** For each client, the server keeps a table of all the contexts that are
** current for that client (each thread of a client may have its own current
** context). These routines add, change, and lookup contexts in the table.
*/
/*
** Add a current context, and return the tag that will be used to refer to it.
*/
static int
AddCurrentContext(__GLXclientState * cl, __GLXcontext * glxc, DrawablePtr pDraw)
{
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 **) malloc(sizeof(__GLXcontext *));
cl->currentDrawables = (DrawablePtr *) malloc(sizeof(DrawablePtr));
cl->be_currentCTag = xallocarray(screenInfo.numScreens,
sizeof(GLXContextTag));
}
else {
table = reallocarray(table, num + 1, sizeof(__GLXcontext *));
cl->currentDrawables = reallocarray(cl->currentDrawables, num + 1,
sizeof(DrawablePtr));
cl->be_currentCTag = reallocarray(cl->be_currentCTag,
(num + 1) * screenInfo.numScreens,
sizeof(GLXContextTag));
}
table[num] = glxc;
cl->currentDrawables[num] = pDraw;
cl->currentContexts = table;
cl->numCurrentContexts++;
memset(cl->be_currentCTag + num * screenInfo.numScreens, 0,
screenInfo.numScreens * sizeof(GLXContextTag));
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;
}
/*
** Given a tag, and back-end screen number, retrives the current back-end
** tag.
*/
int
GetCurrentBackEndTag(__GLXclientState * cl, GLXContextTag tag, int s)
{
if (tag > 0) {
return (cl->be_currentCTag[(tag - 1) * screenInfo.numScreens + s]);
}
else {
return 0;
}
}
/*
** Given a tag, and back-end screen number, sets the current back-end
** tag.
*/
static void
SetCurrentBackEndTag(__GLXclientState * cl, GLXContextTag tag, int s,
GLXContextTag be_tag)
{
if (tag > 0) {
cl->be_currentCTag[(tag - 1) * screenInfo.numScreens + s] = be_tag;
}
}
/*
** 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];
}
}
DrawablePtr
__glXLookupDrawableByTag(__GLXclientState * cl, GLXContextTag tag)
{
int num = cl->numCurrentContexts;
if (tag < 1 || tag > num) {
return 0;
}
else {
return cl->currentDrawables[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;
}
/*****************************************************************************/
/*
** Make an OpenGL context and drawable current.
*/
static int
MakeCurrent(__GLXclientState * cl,
GLXDrawable drawable,
GLXDrawable readdrawable,
GLXContextID context, GLXContextTag oldContextTag)
{
ClientPtr client = cl->client;
DrawablePtr pDraw = NULL;
DrawablePtr pReadDraw = NULL;
xGLXMakeCurrentReadSGIReply new_reply = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0
};
xGLXMakeCurrentReq *be_req;
xGLXMakeCurrentReply be_reply;
xGLXMakeContextCurrentReq *be_new_req;
xGLXMakeContextCurrentReply be_new_reply;
GLXDrawable drawId = drawable;
GLXDrawable readId = readdrawable;
GLXContextID contextId = context;
__GLXpixmap *pGlxPixmap = 0;
__GLXpixmap *pReadGlxPixmap = 0;
__GLXcontext *glxc, *prevglxc;
GLXContextTag tag = oldContextTag;
WindowPtr pWin = NULL;
WindowPtr pReadWin = NULL;
__glXWindow *pGlxWindow = NULL;
__glXWindow *pGlxReadWindow = NULL;
__glXPbuffer *pGlxPbuffer = NULL;
__glXPbuffer *pGlxReadPbuffer = NULL;
#ifdef PANORAMIX
PanoramiXRes *pXinDraw = NULL;
PanoramiXRes *pXinReadDraw = NULL;
#endif
int from_screen = 0;
int to_screen = 0;
int s, rc;
/*
** If one is None and the other isn't, it's a bad match.
*/
if ((drawId == None && contextId != None) ||
(drawId != None && contextId == None)) {
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 __glXBadContextTag;
}
}
else {
prevglxc = 0;
}
/*
** Lookup new context. It must not be current for someone else.
*/
if (contextId != None) {
dixLookupResourceByType((void **) &glxc, contextId, __glXContextRes,
NullClient, DixUnknownAccess);
if (!glxc) {
client->errorValue = contextId;
return __glXBadContext;
}
if ((glxc != prevglxc) && glxc->isCurrent) {
/* Context is current to somebody else */
return BadAccess;
}
}
else {
/* Switching to no context. Ignore new drawable. */
glxc = 0;
}
if (drawId != None) {
rc = dixLookupDrawable(&pDraw, drawId, client, 0, DixWriteAccess);
if (rc == Success) {
if (pDraw->type == DRAWABLE_WINDOW) {
/*
** Drawable is an X Window.
*/
VisualID vid;
pWin = (WindowPtr) pDraw;
vid = wVisual(pWin);
new_reply.writeVid =
(glxc->pFBConfig ? glxc->pFBConfig->id : vid);
new_reply.writeType = GLX_WINDOW_TYPE;
/*
** Check if window and context are similar.
*/
if ((vid != glxc->pVisual->vid) ||
(pWin->drawable.pScreen != glxc->pScreen)) {
client->errorValue = drawId;
return BadMatch;
}
from_screen = to_screen = pWin->drawable.pScreen->myNum;
}
else {
/*
** An X Pixmap is not allowed as a parameter (a GLX Pixmap
** is, but it must first be created with glxCreateGLXPixmap).
*/
client->errorValue = drawId;
return __glXBadDrawable;
}
}
if (!pDraw) {
dixLookupResourceByType((void **) &pGlxPixmap, drawId,
__glXPixmapRes, NullClient,
DixUnknownAccess);
if (pGlxPixmap) {
/*
** Check if pixmap and context are similar.
*/
if (pGlxPixmap->pScreen != glxc->pScreen ||
pGlxPixmap->pGlxVisual != glxc->pGlxVisual) {
client->errorValue = drawId;
return BadMatch;
}
pDraw = pGlxPixmap->pDraw;
new_reply.writeVid = (glxc->pFBConfig ? glxc->pFBConfig->id :
pGlxPixmap->pGlxVisual->vid);
new_reply.writeType = GLX_PIXMAP_TYPE;
from_screen = to_screen = pGlxPixmap->pScreen->myNum;
}
}
if (!pDraw && __GLX_IS_VERSION_SUPPORTED(1, 3)) {
dixLookupResourceByType((void **) &pGlxWindow, drawId,
__glXWindowRes, NullClient,
DixUnknownAccess);
if (pGlxWindow) {
/*
** Drawable is a GLXWindow.
**
** Check if GLX window and context are similar.
*/
if (pGlxWindow->pScreen != glxc->pScreen ||
pGlxWindow->pGlxFBConfig != glxc->pFBConfig) {
client->errorValue = drawId;
return BadMatch;
}
pDraw = pGlxWindow->pDraw;
new_reply.writeVid = pGlxWindow->pGlxFBConfig->id;
new_reply.writeType = GLX_GLXWINDOW_TYPE;
}
}
if (!pDraw && __GLX_IS_VERSION_SUPPORTED(1, 3)) {
dixLookupResourceByType((void **) &pGlxPbuffer, drawId,
__glXPbufferRes, NullClient,
DixUnknownAccess);
if (pGlxPbuffer) {
if (pGlxPbuffer->pScreen != glxc->pScreen ||
pGlxPbuffer->pFBConfig != glxc->pFBConfig) {
client->errorValue = drawId;
return BadMatch;
}
pDraw = (DrawablePtr) pGlxPbuffer;
new_reply.writeVid = pGlxPbuffer->pFBConfig->id;
new_reply.writeType = GLX_PBUFFER_TYPE;
}
}
if (!pDraw) {
/*
** Drawable is not a Window , GLXWindow or a GLXPixmap.
*/
client->errorValue = drawId;
return __glXBadDrawable;
}
}
else {
pDraw = 0;
}
if (readId != None && readId != drawId) {
rc = dixLookupDrawable(&pReadDraw, readId, client, 0, DixReadAccess);
if (rc == Success) {
if (pReadDraw->type == DRAWABLE_WINDOW) {
/*
** Drawable is an X Window.
*/
VisualID vid;
pReadWin = (WindowPtr) pDraw;
vid = wVisual(pReadWin);
new_reply.readVid =
(glxc->pFBConfig ? glxc->pFBConfig->id : vid);
new_reply.readType = GLX_WINDOW_TYPE;
/*
** Check if window and context are similar.
*/
if ((vid != glxc->pVisual->vid) ||
(pReadWin->drawable.pScreen != glxc->pScreen)) {
client->errorValue = readId;
return BadMatch;
}
}
else {
/*
** An X Pixmap is not allowed as a parameter (a GLX Pixmap
** is, but it must first be created with glxCreateGLXPixmap).
*/
client->errorValue = readId;
return __glXBadDrawable;
}
}
if (!pReadDraw) {
dixLookupResourceByType((void **) &pReadGlxPixmap, readId,
__glXPixmapRes, NullClient,
DixUnknownAccess);
if (pReadGlxPixmap) {
/*
** Check if pixmap and context are similar.
*/
if (pReadGlxPixmap->pScreen != glxc->pScreen ||
pReadGlxPixmap->pGlxVisual != glxc->pGlxVisual) {
client->errorValue = readId;
return BadMatch;
}
pReadDraw = pReadGlxPixmap->pDraw;
new_reply.readVid = (glxc->pFBConfig ? glxc->pFBConfig->id :
pReadGlxPixmap->pGlxVisual->vid);
new_reply.readType = GLX_PIXMAP_TYPE;
}
}
if (!pReadDraw && __GLX_IS_VERSION_SUPPORTED(1, 3)) {
dixLookupResourceByType((void **) &pGlxReadWindow, readId,
__glXWindowRes, NullClient,
DixUnknownAccess);
if (pGlxReadWindow) {
/*
** Drawable is a GLXWindow.
**
** Check if GLX window and context are similar.
*/
if (pGlxReadWindow->pScreen != glxc->pScreen ||
pGlxReadWindow->pGlxFBConfig != glxc->pFBConfig) {
client->errorValue = readId;
return BadMatch;
}
pReadDraw = pGlxReadWindow->pDraw;
new_reply.readVid = pGlxReadWindow->pGlxFBConfig->id;
new_reply.readType = GLX_GLXWINDOW_TYPE;
}
}
if (!pReadDraw && __GLX_IS_VERSION_SUPPORTED(1, 3)) {
dixLookupResourceByType((void **) &pGlxReadPbuffer, readId,
__glXPbufferRes, NullClient,
DixUnknownAccess);
if (pGlxReadPbuffer) {
if (pGlxReadPbuffer->pScreen != glxc->pScreen ||
pGlxReadPbuffer->pFBConfig != glxc->pFBConfig) {
client->errorValue = drawId;
return BadMatch;
}
pReadDraw = (DrawablePtr) pGlxReadPbuffer;
new_reply.readVid = pGlxReadPbuffer->pFBConfig->id;
new_reply.readType = GLX_PBUFFER_TYPE;
}
}
if (!pReadDraw) {
/*
** Drawable is neither a Window nor a GLXPixmap.
*/
client->errorValue = readId;
return __glXBadDrawable;
}
}
else {
pReadDraw = pDraw;
pReadGlxPixmap = pGlxPixmap;
pReadWin = pWin;
new_reply.readVid = new_reply.writeVid;
new_reply.readType = new_reply.writeType;
}
if (prevglxc) {
if (prevglxc->pGlxPixmap) {
/*
** The previous drawable was a glx pixmap, release it.
*/
prevglxc->pGlxPixmap->refcnt--;
__glXFreeGLXPixmap(prevglxc->pGlxPixmap);
prevglxc->pGlxPixmap = 0;
}
if (prevglxc->pGlxReadPixmap) {
/*
** The previous drawable was a glx pixmap, release it.
*/
prevglxc->pGlxReadPixmap->refcnt--;
__glXFreeGLXPixmap(prevglxc->pGlxReadPixmap);
prevglxc->pGlxReadPixmap = 0;
}
if (prevglxc->pGlxWindow) {
/*
** The previous drawable was a glx window, release it.
*/
prevglxc->pGlxWindow->refcnt--;
__glXFreeGLXWindow(prevglxc->pGlxWindow);
prevglxc->pGlxWindow = 0;
}
if (prevglxc->pGlxReadWindow) {
/*
** The previous drawable was a glx window, release it.
*/
prevglxc->pGlxReadWindow->refcnt--;
__glXFreeGLXWindow(prevglxc->pGlxReadWindow);
prevglxc->pGlxReadWindow = 0;
}
if (prevglxc->pGlxPbuffer) {
/*
** The previous drawable was a glx Pbuffer, release it.
*/
prevglxc->pGlxPbuffer->refcnt--;
__glXFreeGLXPbuffer(prevglxc->pGlxPbuffer);
prevglxc->pGlxPbuffer = 0;
}
if (prevglxc->pGlxReadPbuffer) {
/*
** The previous drawable was a glx Pbuffer, release it.
*/
prevglxc->pGlxReadPbuffer->refcnt--;
__glXFreeGLXPbuffer(prevglxc->pGlxReadPbuffer);
prevglxc->pGlxReadPbuffer = 0;
}
ChangeCurrentContext(cl, glxc, tag);
ChangeCurrentContext(cl, glxc, tag);
StopUsingContext(prevglxc);
}
else {
tag = AddCurrentContext(cl, glxc, pDraw);
}
if (glxc) {
glxc->pGlxPixmap = pGlxPixmap;
glxc->pGlxReadPixmap = pReadGlxPixmap;
glxc->pGlxWindow = pGlxWindow;
glxc->pGlxReadWindow = pGlxReadWindow;
glxc->pGlxPbuffer = pGlxPbuffer;
glxc->pGlxReadPbuffer = pGlxReadPbuffer;
if (pGlxPixmap) {
pGlxPixmap->refcnt++;
}
if (pReadGlxPixmap) {
pReadGlxPixmap->refcnt++;
}
if (pGlxWindow) {
pGlxWindow->refcnt++;
}
if (pGlxReadWindow) {
pGlxReadWindow->refcnt++;
}
if (pGlxPbuffer) {
pGlxPbuffer->refcnt++;
}
if (pGlxReadPbuffer) {
pGlxReadPbuffer->refcnt++;
}
StartUsingContext(cl, glxc);
new_reply.contextTag = tag;
}
else {
new_reply.contextTag = 0;
}
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
if (pDraw && new_reply.writeType != GLX_PBUFFER_TYPE) {
dixLookupResourceByClass((void **) &pXinDraw,
pDraw->id, XRC_DRAWABLE,
client, DixReadAccess);
}
if (pReadDraw && pReadDraw != pDraw &&
new_reply.readType != GLX_PBUFFER_TYPE) {
dixLookupResourceByClass((void **) &pXinReadDraw,
pReadDraw->id, XRC_DRAWABLE,
client, DixReadAccess);
}
else {
pXinReadDraw = pXinDraw;
}
}
#endif
/* send the MakeCurrent request to all required
* back-end servers.
*/
for (s = from_screen; s <= to_screen; s++) {
DMXScreenInfo *dmxScreen = &dmxScreens[s];
Display *dpy = GetBackEndDisplay(cl, s);
unsigned int be_draw = None;
unsigned int be_read_draw = None;
if (pGlxPixmap) {
be_draw = pGlxPixmap->be_xids[s];
}
else if (pGlxPbuffer) {
be_draw = pGlxPbuffer->be_xids[s];
}
#ifdef PANORAMIX
else if (pXinDraw) {
dixLookupWindow(&pWin, pXinDraw->info[s].id, client, DixReadAccess);
}
#endif
else if (pGlxWindow) {
pWin = (WindowPtr) pGlxWindow->pDraw;
}
if (pWin && be_draw == None) {
be_draw = (unsigned int) (DMX_GET_WINDOW_PRIV(pWin))->window;
if (!be_draw) {
/* it might be that the window did not created yet on the */
/* back-end server (lazy window creation option), force */
/* creation of the window */
dmxCreateAndRealizeWindow(pWin, TRUE);
be_draw = (unsigned int) (DMX_GET_WINDOW_PRIV(pWin))->window;
}
}
/*
* Before sending the MakeCurrent request - sync the
* X11 connection to the back-end servers to make sure
* that drawable is already created
*/
dmxSync(dmxScreen, 1);
if (drawId == readId) {
LockDisplay(dpy);
GetReq(GLXMakeCurrent, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXMakeCurrent;
be_req->drawable = be_draw;
be_req->context =
(unsigned int) (glxc ? glxc->real_ids[s - from_screen] : 0);
be_req->oldContextTag = GetCurrentBackEndTag(cl, tag, s);
if (!_XReply(dpy, (xReply *) &be_reply, 0, False)) {
/* The make current failed */
UnlockDisplay(dpy);
SyncHandle();
return (BE_TO_CLIENT_ERROR(dmxLastErrorEvent.error_code));
}
UnlockDisplay(dpy);
SyncHandle();
SetCurrentBackEndTag(cl, tag, s, be_reply.contextTag);
}
else {
if (pReadGlxPixmap) {
be_read_draw = pReadGlxPixmap->be_xids[s];
}
else if (pGlxReadPbuffer) {
be_read_draw = pGlxReadPbuffer->be_xids[s];
}
#ifdef PANORAMIX
else if (pXinReadDraw) {
dixLookupWindow(&pReadWin, pXinReadDraw->info[s].id, client,
DixReadAccess);
}
#endif
else if (pGlxReadWindow) {
pReadWin = (WindowPtr) pGlxReadWindow->pDraw;
}
if (pReadWin && be_read_draw == None) {
be_read_draw =
(unsigned int) (DMX_GET_WINDOW_PRIV(pReadWin))->window;
if (!be_read_draw) {
/* it might be that the window did not created yet on the */
/* back-end server (lazy window creation option), force */
/* creation of the window */
dmxCreateAndRealizeWindow(pReadWin, TRUE);
be_read_draw =
(unsigned int) (DMX_GET_WINDOW_PRIV(pReadWin))->window;
dmxSync(dmxScreen, 1);
}
}
if (__GLX_IS_VERSION_SUPPORTED(1, 3)) {
LockDisplay(dpy);
GetReq(GLXMakeContextCurrent, be_new_req);
be_new_req->reqType = dmxScreen->glxMajorOpcode;
be_new_req->glxCode = X_GLXMakeContextCurrent;
be_new_req->drawable = be_draw;
be_new_req->readdrawable = be_read_draw;
be_new_req->context =
(unsigned int) (glxc ? glxc->real_ids[s - from_screen] : 0);
be_new_req->oldContextTag = GetCurrentBackEndTag(cl, tag, s);
if (!_XReply(dpy, (xReply *) &be_new_reply, 0, False)) {
/* The make current failed */
UnlockDisplay(dpy);
SyncHandle();
return (BE_TO_CLIENT_ERROR(dmxLastErrorEvent.error_code));
}
UnlockDisplay(dpy);
SyncHandle();
SetCurrentBackEndTag(cl, tag, s, be_new_reply.contextTag);
}
else if (glxIsExtensionSupported("GLX_SGI_make_current_read")) {
xGLXMakeCurrentReadSGIReq *ext_req;
xGLXVendorPrivateWithReplyReq *vpreq;
xGLXMakeCurrentReadSGIReply ext_reply;
LockDisplay(dpy);
GetReqExtra(GLXVendorPrivateWithReply,
sz_xGLXMakeCurrentReadSGIReq -
sz_xGLXVendorPrivateWithReplyReq, vpreq);
ext_req = (xGLXMakeCurrentReadSGIReq *) vpreq;
ext_req->reqType = dmxScreen->glxMajorOpcode;
ext_req->glxCode = X_GLXVendorPrivateWithReply;
ext_req->vendorCode = X_GLXvop_MakeCurrentReadSGI;
ext_req->drawable = be_draw;
ext_req->readable = be_read_draw;
ext_req->context =
(unsigned int) (glxc ? glxc->real_ids[s - from_screen] : 0);
ext_req->oldContextTag = GetCurrentBackEndTag(cl, tag, s);
if (!_XReply(dpy, (xReply *) &ext_reply, 0, False)) {
/* The make current failed */
UnlockDisplay(dpy);
SyncHandle();
return (BE_TO_CLIENT_ERROR(dmxLastErrorEvent.error_code));
}
UnlockDisplay(dpy);
SyncHandle();
SetCurrentBackEndTag(cl, tag, s, ext_reply.contextTag);
}
else {
return BadMatch;
}
}
XFlush(dpy);
}
if (client->swapped) {
__glXSwapMakeCurrentReply(client, &new_reply);
}
else {
WriteToClient(client, sz_xGLXMakeContextCurrentReply, &new_reply);
}
return Success;
}
int
__glXMakeCurrent(__GLXclientState * cl, GLbyte * pc)
{
xGLXMakeCurrentReq *req = (xGLXMakeCurrentReq *) pc;
return (MakeCurrent(cl, req->drawable, req->drawable,
req->context, req->oldContextTag));
}
int
__glXMakeContextCurrent(__GLXclientState * cl, GLbyte * pc)
{
xGLXMakeContextCurrentReq *req = (xGLXMakeContextCurrentReq *) pc;
return (MakeCurrent(cl, req->drawable, req->readdrawable,
req->context, req->oldContextTag));
}
int
__glXMakeCurrentReadSGI(__GLXclientState * cl, GLbyte * pc)
{
xGLXMakeCurrentReadSGIReq *req = (xGLXMakeCurrentReadSGIReq *) pc;
return (MakeCurrent(cl, req->drawable, req->readable,
req->context, req->oldContextTag));
}
int
__glXIsDirect(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXIsDirectReq *req = (xGLXIsDirectReq *) pc;
xGLXIsDirectReply reply;
__GLXcontext *glxc;
/*
** Find the GL context.
*/
dixLookupResourceByType((void **) &glxc, req->context, __glXContextRes,
NullClient, DixUnknownAccess);
if (!glxc) {
client->errorValue = req->context;
return __glXBadContext;
}
reply = (xGLXIsDirectReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0,
.isDirect = 0
};
if (client->swapped) {
__glXSwapIsDirectReply(client, &reply);
}
else {
WriteToClient(client, sz_xGLXIsDirectReply, &reply);
}
return Success;
}
int
__glXQueryVersion(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
/* xGLXQueryVersionReq *req = (xGLXQueryVersionReq *) pc; */
xGLXQueryVersionReply reply = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0,
/*
** 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.
*/
.majorVersion = __glXVersionMajor,
.minorVersion = __glXVersionMinor
};
if (client->swapped) {
__glXSwapQueryVersionReply(client, &reply);
}
else {
WriteToClient(client, sz_xGLXQueryVersionReply, &reply);
}
return Success;
}
int
__glXWaitGL(__GLXclientState * cl, GLbyte * pc)
{
xGLXWaitGLReq *req = (xGLXWaitGLReq *) pc;
xGLXWaitGLReq *be_req = (xGLXWaitGLReq *) pc;
int from_screen = 0;
int to_screen = 0;
int s;
__GLXcontext *glxc = NULL;
if (req->contextTag != 0) {
glxc = __glXLookupContextByTag(cl, req->contextTag);
if (glxc) {
from_screen = to_screen = glxc->pScreen->myNum;
}
}
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
}
#endif
for (s = from_screen; s <= to_screen; s++) {
DMXScreenInfo *dmxScreen = &dmxScreens[s];
Display *dpy = GetBackEndDisplay(cl, s);
LockDisplay(dpy);
GetReq(GLXWaitGL, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXWaitGL;
be_req->contextTag =
(glxc ? GetCurrentBackEndTag(cl, req->contextTag, s) : 0);
UnlockDisplay(dpy);
SyncHandle();
XSync(dpy, False);
}
return Success;
}
int
__glXWaitX(__GLXclientState * cl, GLbyte * pc)
{
xGLXWaitXReq *req = (xGLXWaitXReq *) pc;
xGLXWaitXReq *be_req;
int from_screen = 0;
int to_screen = 0;
int s;
__GLXcontext *glxc = NULL;
if (req->contextTag != 0) {
glxc = __glXLookupContextByTag(cl, req->contextTag);
if (glxc) {
from_screen = to_screen = glxc->pScreen->myNum;
}
}
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
}
#endif
for (s = from_screen; s <= to_screen; s++) {
DMXScreenInfo *dmxScreen = &dmxScreens[s];
Display *dpy = GetBackEndDisplay(cl, s);
dmxSync(dmxScreen, 1);
LockDisplay(dpy);
GetReq(GLXWaitX, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXWaitX;
be_req->contextTag =
(glxc ? GetCurrentBackEndTag(cl, req->contextTag, s) : 0);
UnlockDisplay(dpy);
SyncHandle();
XFlush(dpy);
}
return Success;
}
int
__glXCopyContext(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXCopyContextReq *be_req;
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 s;
int from_screen = 0;
int to_screen = 0;
/*
** Check that each context exists.
*/
dixLookupResourceByType((void **) &src, source, __glXContextRes,
NullClient, DixUnknownAccess);
if (!src) {
client->errorValue = source;
return __glXBadContext;
}
dixLookupResourceByType((void **) &dst, dest, __glXContextRes,
NullClient, DixUnknownAccess);
if (!dst) {
client->errorValue = dest;
return __glXBadContext;
}
/*
** They must be in the same address space, and same screen.
*/
if (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 __glXBadContextTag;
}
if (tagcx != src) {
/*
** This would be caused by a faulty implementation of the client
** library.
*/
return BadMatch;
}
}
from_screen = to_screen = src->pScreen->myNum;
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
}
#endif
for (s = from_screen; s <= to_screen; s++) {
DMXScreenInfo *dmxScreen = &dmxScreens[s];
Display *dpy = GetBackEndDisplay(cl, s);
LockDisplay(dpy);
GetReq(GLXCopyContext, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXCopyContext;
be_req->source = (unsigned int) src->real_ids[s - from_screen];
be_req->dest = (unsigned int) dst->real_ids[s - from_screen];
be_req->mask = mask;
be_req->contextTag =
(tag ? GetCurrentBackEndTag(cl, req->contextTag, s) : 0);
UnlockDisplay(dpy);
SyncHandle();
}
return Success;
}
int
__glXGetVisualConfigs(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXGetVisualConfigsReq *req = (xGLXGetVisualConfigsReq *) pc;
xGLXGetVisualConfigsReply reply;
__GLXscreenInfo *pGlxScreen;
__GLXvisualConfig *pGlxVisual;
CARD32 buf[__GLX_TOTAL_CONFIG];
unsigned int screen;
int i, p;
screen = req->screen;
if (screen >= screenInfo.numScreens) {
/* The client library must send a valid screen number. */
client->errorValue = screen;
return BadValue;
}
pGlxScreen = &__glXActiveScreens[screen];
reply = (xGLXGetVisualConfigsReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
.numVisuals = pGlxScreen->numGLXVisuals,
.numProps = __GLX_TOTAL_CONFIG,
.length = (pGlxScreen->numGLXVisuals * __GLX_SIZE_CARD32 *
__GLX_TOTAL_CONFIG) >> 2
};
WriteToClient(client, sz_xGLXGetVisualConfigsReply, &reply);
for (i = 0; i < pGlxScreen->numVisuals; i++) {
pGlxVisual = &pGlxScreen->pGlxVisual[i];
if (!pGlxScreen->isGLXvis[i] || pGlxVisual->vid == 0) {
/* not a usable visual */
continue;
}
p = 0;
buf[p++] = pGlxVisual->vid;
buf[p++] = pGlxVisual->class;
buf[p++] = pGlxVisual->rgba;
buf[p++] = pGlxVisual->redSize;
buf[p++] = pGlxVisual->greenSize;
buf[p++] = pGlxVisual->blueSize;
buf[p++] = pGlxVisual->alphaSize;
buf[p++] = pGlxVisual->accumRedSize;
buf[p++] = pGlxVisual->accumGreenSize;
buf[p++] = pGlxVisual->accumBlueSize;
buf[p++] = pGlxVisual->accumAlphaSize;
buf[p++] = pGlxVisual->doubleBuffer;
buf[p++] = pGlxVisual->stereo;
buf[p++] = pGlxVisual->bufferSize;
buf[p++] = pGlxVisual->depthSize;
buf[p++] = pGlxVisual->stencilSize;
buf[p++] = pGlxVisual->auxBuffers;
buf[p++] = pGlxVisual->level;
/*
** Add token/value pairs for extensions.
*/
buf[p++] = GLX_VISUAL_CAVEAT_EXT;
buf[p++] = pGlxVisual->visualRating;
buf[p++] = GLX_TRANSPARENT_TYPE_EXT;
buf[p++] = pGlxVisual->transparentPixel;
buf[p++] = GLX_TRANSPARENT_RED_VALUE_EXT;
buf[p++] = pGlxVisual->transparentRed;
buf[p++] = GLX_TRANSPARENT_GREEN_VALUE_EXT;
buf[p++] = pGlxVisual->transparentGreen;
buf[p++] = GLX_TRANSPARENT_BLUE_VALUE_EXT;
buf[p++] = pGlxVisual->transparentBlue;
buf[p++] = GLX_TRANSPARENT_ALPHA_VALUE_EXT;
buf[p++] = pGlxVisual->transparentAlpha;
buf[p++] = GLX_TRANSPARENT_INDEX_VALUE_EXT;
buf[p++] = pGlxVisual->transparentIndex;
buf[p++] = GLX_SAMPLES_SGIS;
buf[p++] = pGlxVisual->multiSampleSize;
buf[p++] = GLX_SAMPLE_BUFFERS_SGIS;
buf[p++] = pGlxVisual->nMultiSampleBuffers;
buf[p++] = GLX_VISUAL_SELECT_GROUP_SGIX;
buf[p++] = pGlxVisual->visualSelectGroup;
WriteToClient(client, __GLX_SIZE_CARD32 * __GLX_TOTAL_CONFIG, buf);
}
return Success;
}
/*
** Create a GLX Pixmap from an X Pixmap.
*/
static int
CreateGLXPixmap(__GLXclientState * cl,
VisualID visual, GLXFBConfigID fbconfigId,
int screenNum, XID pixmapId, XID glxpixmapId)
{
ClientPtr client = cl->client;
xGLXCreateGLXPixmapReq *be_req;
xGLXCreatePixmapReq *be_new_req;
DrawablePtr pDraw;
ScreenPtr pScreen;
VisualPtr pVisual;
__GLXpixmap *pGlxPixmap;
__GLXscreenInfo *pGlxScreen;
__GLXvisualConfig *pGlxVisual;
__GLXFBConfig *pFBConfig;
int i, s, rc;
int from_screen, to_screen;
#ifdef PANORAMIX
PanoramiXRes *pXinDraw = NULL;
#endif
rc = dixLookupDrawable(&pDraw, pixmapId, client, M_DRAWABLE_PIXMAP,
DixAddAccess);
if (rc != Success)
return rc;
/*
** Check if screen of visual matches screen of pixmap.
*/
pScreen = pDraw->pScreen;
if (screenNum != pScreen->myNum) {
return BadMatch;
}
if (fbconfigId == 0 && visual == 0) {
return BadValue;
}
if (fbconfigId != None) {
pFBConfig = glxLookupFBConfig(fbconfigId);
if (!pFBConfig) {
client->errorValue = fbconfigId;
return BadValue;
}
visual = pFBConfig->associatedVisualId;
}
else {
pFBConfig = NULL;
}
if (visual != None) {
/*
** Find the VisualRec for this visual.
*/
pVisual = pScreen->visuals;
for (i = 0; i < pScreen->numVisuals; i++, pVisual++) {
if (pVisual->vid == visual) {
break;
}
}
if (i == pScreen->numVisuals) {
client->errorValue = visual;
return BadValue;
}
/*
** Check if depth of visual matches depth of pixmap.
*/
if (pVisual->nplanes != pDraw->depth) {
client->errorValue = visual;
return BadMatch;
}
/*
** Get configuration of the visual.
*/
pGlxScreen = &__glXActiveScreens[screenNum];
pGlxVisual = pGlxScreen->pGlxVisual;
for (i = 0; i < pGlxScreen->numVisuals; i++, pGlxVisual++) {
if (pGlxVisual->vid == visual) {
break;
}
}
if (i == pGlxScreen->numVisuals) {
/*
** Visual not support on this screen by this OpenGL implementation.
*/
client->errorValue = visual;
return BadValue;
}
/* find the FBConfig for that visual (if any) */
if (pFBConfig == NULL) {
pFBConfig = glxLookupFBConfigByVID(visual);
if (pFBConfig == NULL) {
/*
* visual does not have an FBConfig ???
client->errorValue = visual;
return BadValue;
*/
}
}
}
else {
pVisual = NULL;
pGlxVisual = NULL;
pGlxScreen = &__glXActiveScreens[pDraw->pScreen->myNum];
}
pGlxPixmap = (__GLXpixmap *) malloc(sizeof(__GLXpixmap));
if (!pGlxPixmap) {
return BadAlloc;
}
pGlxPixmap->be_xids = xallocarray(screenInfo.numScreens, sizeof(XID));
if (!pGlxPixmap->be_xids) {
free(pGlxPixmap);
return BadAlloc;
}
pGlxPixmap->pDraw = pDraw;
pGlxPixmap->pGlxScreen = pGlxScreen;
pGlxPixmap->pGlxVisual = pGlxVisual;
pGlxPixmap->pFBConfig = pFBConfig;
pGlxPixmap->pScreen = pScreen;
pGlxPixmap->idExists = True;
pGlxPixmap->refcnt = 0;
/*
** Bump the ref count on the X pixmap so it won't disappear.
*/
((PixmapPtr) pDraw)->refcnt++;
/*
* send the request to the back-end server(s)
*/
from_screen = to_screen = screenNum;
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
dixLookupResourceByClass((void **) &pXinDraw,
pDraw->id, XRC_DRAWABLE,
client, DixReadAccess);
}
#endif
for (s = from_screen; s <= to_screen; s++) {
DMXScreenInfo *dmxScreen = &dmxScreens[s];
Display *dpy = GetBackEndDisplay(cl, s);
Pixmap be_pixmap;
DrawablePtr pRealDraw = pDraw;
#ifdef PANORAMIX
if (pXinDraw) {
dixLookupDrawable(&pRealDraw, pXinDraw->info[s].id, client, 0,
DixAddAccess);
}
#endif
be_pixmap = (DMX_GET_PIXMAP_PRIV((PixmapPtr) pRealDraw))->pixmap;
/* make sure pixmap already created on back-end */
dmxSync(dmxScreen, 1);
if (pFBConfig && __GLX_IS_VERSION_SUPPORTED(1, 3)) {
__GLXFBConfig *be_FBConfig =
glxLookupBackEndFBConfig(pFBConfig->id, s);
LockDisplay(dpy);
pGlxPixmap->be_xids[s] = XAllocID(dpy);
GetReq(GLXCreatePixmap, be_new_req);
be_new_req->reqType = dmxScreen->glxMajorOpcode;
be_new_req->glxCode = X_GLXCreatePixmap;
be_new_req->screen = DefaultScreen(dpy);
be_new_req->fbconfig = be_FBConfig->id;
be_new_req->pixmap = (unsigned int) be_pixmap;
be_new_req->glxpixmap = (unsigned int) pGlxPixmap->be_xids[s];
be_new_req->numAttribs = 0;
UnlockDisplay(dpy);
SyncHandle();
}
else if (pFBConfig && glxIsExtensionSupported("GLX_SGIX_fbconfig")) {
__GLXFBConfig *be_FBConfig =
glxLookupBackEndFBConfig(pFBConfig->id, s);
xGLXCreateGLXPixmapWithConfigSGIXReq *ext_req;
xGLXVendorPrivateReq *vpreq;
LockDisplay(dpy);
pGlxPixmap->be_xids[s] = XAllocID(dpy);
GetReqExtra(GLXVendorPrivate,
sz_xGLXCreateGLXPixmapWithConfigSGIXReq -
sz_xGLXVendorPrivateReq, vpreq);
ext_req = (xGLXCreateGLXPixmapWithConfigSGIXReq *) vpreq;
ext_req->reqType = dmxScreen->glxMajorOpcode;
ext_req->glxCode = X_GLXVendorPrivate;
ext_req->vendorCode = X_GLXvop_CreateGLXPixmapWithConfigSGIX;
ext_req->screen = DefaultScreen(dpy);
ext_req->fbconfig = be_FBConfig->id;
ext_req->pixmap = (unsigned int) be_pixmap;
ext_req->glxpixmap = (unsigned int) pGlxPixmap->be_xids[s];
UnlockDisplay(dpy);
SyncHandle();
}
else if (pGlxVisual) {
LockDisplay(dpy);
pGlxPixmap->be_xids[s] = XAllocID(dpy);
GetReq(GLXCreateGLXPixmap, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXCreateGLXPixmap;
be_req->screen = DefaultScreen(dpy);
be_req->visual =
(unsigned int) glxMatchGLXVisualInConfigList(pGlxVisual,
dmxScreen->
glxVisuals,
dmxScreen->
numGlxVisuals);
be_req->pixmap = (unsigned int) be_pixmap;
be_req->glxpixmap = (unsigned int) pGlxPixmap->be_xids[s];
UnlockDisplay(dpy);
SyncHandle();
}
else {
client->errorValue = (visual ? visual : fbconfigId);
free(pGlxPixmap->be_xids);
free(pGlxPixmap);
return BadValue;
}
XFlush(dpy);
}
if (!(AddResource(glxpixmapId, __glXPixmapRes, pGlxPixmap)))
return BadAlloc;
return Success;
}
int
__glXCreateGLXPixmap(__GLXclientState * cl, GLbyte * pc)
{
xGLXCreateGLXPixmapReq *req = (xGLXCreateGLXPixmapReq *) pc;
return (CreateGLXPixmap(cl, req->visual, None,
req->screen, req->pixmap, req->glxpixmap));
}
int
__glXCreatePixmap(__GLXclientState * cl, GLbyte * pc)
{
xGLXCreatePixmapReq *req = (xGLXCreatePixmapReq *) pc;
return (CreateGLXPixmap(cl, None, req->fbconfig,
req->screen, req->pixmap, req->glxpixmap));
}
int
__glXDestroyGLXPixmap(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXDestroyGLXPixmapReq *req = (xGLXDestroyGLXPixmapReq *) pc;
XID glxpixmap = req->glxpixmap;
__GLXpixmap *pGlxPixmap;
int s;
int from_screen, to_screen;
/*
** Check if it's a valid GLX pixmap.
*/
dixLookupResourceByType((void **) &pGlxPixmap, glxpixmap,
__glXPixmapRes, NullClient, DixUnknownAccess);
if (!pGlxPixmap) {
client->errorValue = glxpixmap;
return __glXBadPixmap;
}
FreeResource(glxpixmap, FALSE);
/*
* destroy the pixmap on the back-end server(s).
*/
from_screen = to_screen = pGlxPixmap->pDraw->pScreen->myNum;
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
}
#endif
for (s = from_screen; s <= to_screen; s++) {
DMXScreenInfo *dmxScreen = &dmxScreens[s];
Display *dpy = GetBackEndDisplay(cl, s);
/* make sure pixmap exist in back-end */
dmxSync(dmxScreen, 1);
LockDisplay(dpy);
GetReq(GLXDestroyGLXPixmap, req);
req->reqType = dmxScreen->glxMajorOpcode;
req->glxCode = X_GLXDestroyGLXPixmap;
req->glxpixmap = (unsigned int) pGlxPixmap->be_xids[s];
UnlockDisplay(dpy);
SyncHandle();
}
return Success;
}
/*****************************************************************************/
/*
** 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
__glXDoSwapBuffers(__GLXclientState * cl, XID drawId, GLXContextTag tag)
{
ClientPtr client = cl->client;
DrawablePtr pDraw;
xGLXSwapBuffersReq *be_req;
WindowPtr pWin = NULL;
__GLXpixmap *pGlxPixmap = NULL;
__GLXcontext *glxc = NULL;
#ifdef PANORAMIX
PanoramiXRes *pXinDraw = NULL;
#endif
__glXWindow *pGlxWindow = NULL;
int from_screen = 0;
int to_screen = 0;
int s, rc;
/*
** Check that the GLX drawable is valid.
*/
rc = dixLookupDrawable(&pDraw, drawId, client, 0, DixWriteAccess);
if (rc == Success) {
from_screen = to_screen = pDraw->pScreen->myNum;
if (pDraw->type == DRAWABLE_WINDOW) {
/*
** Drawable is an X window.
*/
pWin = (WindowPtr) pDraw;
}
else {
/*
** Drawable is an X pixmap, which is not allowed.
*/
client->errorValue = drawId;
return __glXBadDrawable;
}
}
if (!pDraw) {
dixLookupResourceByType((void **) &pGlxPixmap, drawId,
__glXPixmapRes, NullClient, DixUnknownAccess);
if (pGlxPixmap) {
/*
** Drawable is a GLX pixmap.
*/
pDraw = pGlxPixmap->pDraw;
from_screen = to_screen = pGlxPixmap->pScreen->myNum;
}
}
if (!pDraw && __GLX_IS_VERSION_SUPPORTED(1, 3)) {
dixLookupResourceByType((void **) &pGlxWindow, drawId,
__glXWindowRes, NullClient, DixUnknownAccess);
if (pGlxWindow) {
/*
** Drawable is a GLXWindow.
*/
pDraw = pGlxWindow->pDraw;
from_screen = to_screen = pGlxWindow->pScreen->myNum;
}
}
if (!pDraw) {
/*
** Drawable is neither a X window nor a GLX pixmap.
*/
client->errorValue = drawId;
return __glXBadDrawable;
}
if (tag) {
glxc = __glXLookupContextByTag(cl, tag);
if (!glxc) {
return __glXBadContextTag;
}
}
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
dixLookupResourceByClass((void **) &pXinDraw,
pDraw->id, XRC_DRAWABLE,
client, DixReadAccess);
}
#endif
/* If requested, send a glFinish to all back-end servers before swapping. */
if (dmxGLXFinishSwap) {
for (s = from_screen; s <= to_screen; s++) {
Display *dpy = GetBackEndDisplay(cl, s);
DMXScreenInfo *dmxScreen = &dmxScreens[s];
xGLXSingleReq *finishReq;
xGLXSingleReply reply;
#define X_GLXSingle 0 /* needed by GetReq below */
LockDisplay(dpy);
GetReq(GLXSingle, finishReq);
finishReq->reqType = dmxScreen->glxMajorOpcode;
finishReq->glxCode = X_GLsop_Finish;
finishReq->contextTag =
(tag ? GetCurrentBackEndTag(cl, tag, s) : 0);
(void) _XReply(dpy, (xReply *) &reply, 0, False);
UnlockDisplay(dpy);
SyncHandle();
}
}
/* If requested, send an XSync to all back-end servers before swapping. */
if (dmxGLXSyncSwap) {
for (s = from_screen; s <= to_screen; s++)
XSync(GetBackEndDisplay(cl, s), False);
}
/* send the SwapBuffers request to all back-end servers */
for (s = from_screen; s <= to_screen; s++) {
DMXScreenInfo *dmxScreen = &dmxScreens[s];
Display *dpy = GetBackEndDisplay(cl, s);
unsigned int be_draw = 0;
if (pGlxPixmap) {
be_draw = (unsigned int) pGlxPixmap->be_xids[s];
}
#ifdef PANORAMIX
else if (pXinDraw) {
dixLookupWindow(&pWin, pXinDraw->info[s].id, client, DixReadAccess);
}
#endif
else if (pGlxWindow) {
pWin = (WindowPtr) pGlxWindow->pDraw;
}
if (pWin && !be_draw) {
be_draw = (unsigned int) (DMX_GET_WINDOW_PRIV(pWin))->window;
if (!be_draw) {
/* it might be that the window did not created yet on the */
/* back-end server (lazy window creation option), force */
/* creation of the window */
dmxCreateAndRealizeWindow(pWin, TRUE);
be_draw = (unsigned int) (DMX_GET_WINDOW_PRIV(pWin))->window;
}
}
dmxSync(dmxScreen, 1);
LockDisplay(dpy);
GetReq(GLXSwapBuffers, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXSwapBuffers;
be_req->drawable = be_draw;
be_req->contextTag = (tag ? GetCurrentBackEndTag(cl, tag, s) : 0);
UnlockDisplay(dpy);
SyncHandle();
XFlush(dpy);
}
return Success;
}
int
__glXSwapBuffers(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
DrawablePtr pDraw;
xGLXSwapBuffersReq *req = (xGLXSwapBuffersReq *) pc;
GLXContextTag tag = req->contextTag;
XID drawId = req->drawable;
__GLXpixmap *pGlxPixmap = NULL;
__GLXcontext *glxc = NULL;
__glXWindow *pGlxWindow = NULL;
int rc;
/*
** Check that the GLX drawable is valid.
*/
rc = dixLookupDrawable(&pDraw, drawId, client, 0, DixWriteAccess);
if (rc == Success) {
if (pDraw->type != DRAWABLE_WINDOW) {
/*
** Drawable is an X pixmap, which is not allowed.
*/
client->errorValue = drawId;
return __glXBadDrawable;
}
}
if (!pDraw) {
dixLookupResourceByType((void **) &pGlxPixmap, drawId,
__glXPixmapRes, NullClient, DixUnknownAccess);
if (pGlxPixmap) {
/*
** Drawable is a GLX pixmap.
*/
pDraw = pGlxPixmap->pDraw;
}
}
if (!pDraw && __GLX_IS_VERSION_SUPPORTED(1, 3)) {
dixLookupResourceByType((void **) &pGlxWindow, drawId,
__glXWindowRes, NullClient, DixUnknownAccess);
if (pGlxWindow) {
/*
** Drawable is a GLXWindow.
*/
pDraw = pGlxWindow->pDraw;
}
}
if (!pDraw) {
/*
** Drawable is neither a X window nor a GLX pixmap.
*/
client->errorValue = drawId;
return __glXBadDrawable;
}
if (tag) {
glxc = __glXLookupContextByTag(cl, tag);
if (!glxc) {
return __glXBadContextTag;
}
}
if (pDraw &&
pDraw->type == DRAWABLE_WINDOW &&
DMX_GET_WINDOW_PRIV((WindowPtr) pDraw)->swapGroup) {
return SGSwapBuffers(cl, drawId, tag, pDraw);
}
return __glXDoSwapBuffers(cl, drawId, tag);
}
/************************************************************************/
/*
** 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
__glXRender(__GLXclientState * cl, GLbyte * pc)
{
xGLXRenderReq *req;
xGLXRenderReq *be_req;
int size;
__GLXcontext *glxc;
int from_screen = 0;
int to_screen = 0;
int s;
/*
** NOTE: much of this code also appears in the byteswapping version of this
** routine, __glXSwapRender(). Any changes made here should also be
** duplicated there.
*/
req = (xGLXRenderReq *) pc;
glxc = __glXLookupContextByTag(cl, req->contextTag);
if (!glxc) {
return 0;
}
from_screen = to_screen = glxc->pScreen->myNum;
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
}
#endif
pc += sz_xGLXRenderReq;
size = (req->length << 2) - sz_xGLXRenderReq;
/*
* just forward the request to back-end server(s)
*/
for (s = from_screen; s <= to_screen; s++) {
DMXScreenInfo *dmxScreen = &dmxScreens[s];
Display *dpy = GetBackEndDisplay(cl, s);
LockDisplay(dpy);
GetReq(GLXRender, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXRender;
be_req->length = req->length;
be_req->contextTag = GetCurrentBackEndTag(cl, req->contextTag, s);
_XSend(dpy, (const char *) pc, size);
UnlockDisplay(dpy);
SyncHandle();
}
return Success;
}
/*
** Execute a large rendering request (one that spans multiple X requests).
*/
int
__glXRenderLarge(__GLXclientState * cl, GLbyte * pc)
{
xGLXRenderLargeReq *req;
xGLXRenderLargeReq *be_req;
__GLXcontext *glxc;
int from_screen = 0;
int to_screen = 0;
int s;
/*
** NOTE: much of this code also appears in the byteswapping version of this
** routine, __glXSwapRenderLarge(). Any changes made here should also be
** duplicated there.
*/
req = (xGLXRenderLargeReq *) pc;
glxc = __glXLookupContextByTag(cl, req->contextTag);
if (!glxc) {
return 0;
}
from_screen = to_screen = glxc->pScreen->myNum;
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
}
#endif
pc += sz_xGLXRenderLargeReq;
/*
* just forward the request to back-end server(s)
*/
for (s = from_screen; s <= to_screen; s++) {
DMXScreenInfo *dmxScreen = &dmxScreens[s];
Display *dpy = GetBackEndDisplay(cl, s);
GetReq(GLXRenderLarge, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXRenderLarge;
be_req->contextTag = GetCurrentBackEndTag(cl, req->contextTag, s);
be_req->length = req->length;
be_req->requestNumber = req->requestNumber;
be_req->requestTotal = req->requestTotal;
be_req->dataBytes = req->dataBytes;
Data(dpy, (const char *) pc, req->dataBytes);
UnlockDisplay(dpy);
SyncHandle();
}
return Success;
}
/************************************************************************/
int
__glXVendorPrivate(__GLXclientState * cl, GLbyte * pc)
{
xGLXVendorPrivateReq *req;
req = (xGLXVendorPrivateReq *) pc;
switch (req->vendorCode) {
case X_GLvop_DeleteTexturesEXT:
return __glXVForwardSingleReq(cl, pc);
break;
case X_GLXvop_SwapIntervalSGI:
if (glxIsExtensionSupported("SGI_swap_control")) {
return __glXVForwardSingleReq(cl, pc);
}
else {
return Success;
}
break;
#if 0 /* glx 1.3 */
case X_GLXvop_CreateGLXVideoSourceSGIX:
break;
case X_GLXvop_DestroyGLXVideoSourceSGIX:
break;
case X_GLXvop_CreateGLXPixmapWithConfigSGIX:
break;
case X_GLXvop_DestroyGLXPbufferSGIX:
break;
case X_GLXvop_ChangeDrawableAttributesSGIX:
break;
#endif
case X_GLXvop_BindSwapBarrierSGIX:
return __glXBindSwapBarrierSGIX(cl, pc);
break;
case X_GLXvop_JoinSwapGroupSGIX:
return __glXJoinSwapGroupSGIX(cl, pc);
break;
case X_GLXvop_CreateContextWithConfigSGIX:
return __glXCreateContextWithConfigSGIX(cl, pc);
break;
default:
/*
** unsupported private request
*/
cl->client->errorValue = req->vendorCode;
return __glXUnsupportedPrivateRequest;
}
cl->client->errorValue = req->vendorCode;
return __glXUnsupportedPrivateRequest;
}
int
__glXVendorPrivateWithReply(__GLXclientState * cl, GLbyte * pc)
{
xGLXVendorPrivateWithReplyReq *req;
req = (xGLXVendorPrivateWithReplyReq *) pc;
switch (req->vendorCode) {
case X_GLvop_GetConvolutionFilterEXT:
case X_GLvop_GetConvolutionParameterfvEXT:
case X_GLvop_GetConvolutionParameterivEXT:
case X_GLvop_GetSeparableFilterEXT:
case X_GLvop_GetHistogramEXT:
case X_GLvop_GetHistogramParameterivEXT:
case X_GLvop_GetMinmaxEXT:
case X_GLvop_GetMinmaxParameterfvEXT:
case X_GLvop_GetMinmaxParameterivEXT:
case X_GLvop_AreTexturesResidentEXT:
case X_GLvop_IsTextureEXT:
return (__glXVForwardPipe0WithReply(cl, pc));
break;
case X_GLvop_GenTexturesEXT:
return (__glXVForwardAllWithReply(cl, pc));
break;
#if 0 /* glx1.3 */
case X_GLvop_GetDetailTexFuncSGIS:
case X_GLvop_GetSharpenTexFuncSGIS:
case X_GLvop_GetColorTableSGI:
case X_GLvop_GetColorTableParameterfvSGI:
case X_GLvop_GetColorTableParameterivSGI:
case X_GLvop_GetTexFilterFuncSGIS:
case X_GLvop_GetInstrumentsSGIX:
case X_GLvop_InstrumentsBufferSGIX:
case X_GLvop_PollInstrumentsSGIX:
case X_GLvop_FlushRasterSGIX:
case X_GLXvop_CreateGLXPbufferSGIX:
case X_GLXvop_GetDrawableAttributesSGIX:
case X_GLXvop_QueryHyperpipeNetworkSGIX:
case X_GLXvop_QueryHyperpipeConfigSGIX:
case X_GLXvop_HyperpipeConfigSGIX:
case X_GLXvop_DestroyHyperpipeConfigSGIX:
#endif
case X_GLXvop_QueryMaxSwapBarriersSGIX:
return (__glXQueryMaxSwapBarriersSGIX(cl, pc));
break;
case X_GLXvop_GetFBConfigsSGIX:
return (__glXGetFBConfigsSGIX(cl, pc));
break;
case X_GLXvop_MakeCurrentReadSGI:
return (__glXMakeCurrentReadSGI(cl, pc));
break;
case X_GLXvop_QueryContextInfoEXT:
return (__glXQueryContextInfoEXT(cl, pc));
break;
default:
/*
** unsupported private request
*/
cl->client->errorValue = req->vendorCode;
return __glXUnsupportedPrivateRequest;
}
}
int
__glXQueryExtensionsString(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXQueryExtensionsStringReq *req = (xGLXQueryExtensionsStringReq *) pc;
xGLXQueryExtensionsStringReply reply;
GLint screen;
size_t length;
int len, numbytes;
char *be_buf;
#ifdef FWD_QUERY_REQ
xGLXQueryExtensionsStringReq *be_req;
xGLXQueryExtensionsStringReply be_reply;
DMXScreenInfo *dmxScreen;
Display *dpy;
#endif
screen = req->screen;
/*
** Check if screen exists.
*/
if ((screen < 0) || (screen >= screenInfo.numScreens)) {
client->errorValue = screen;
return BadValue;
}
#ifdef FWD_QUERY_REQ
dmxScreen = &dmxScreens[screen];
/* Send the glXQueryServerString request */
dpy = GetBackEndDisplay(cl, screen);
LockDisplay(dpy);
GetReq(GLXQueryExtensionsString, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXQueryServerString;
be_req->screen = DefaultScreen(dpy);
_XReply(dpy, (xReply *) &be_reply, 0, False);
len = (int) be_reply.length;
numbytes = (int) be_reply.n;
be_buf = (char *) malloc(numbytes);
if (!be_buf) {
/* Throw data on the floor */
_XEatDataWords(dpy, len);
}
else {
_XReadPad(dpy, (char *) be_buf, numbytes);
}
UnlockDisplay(dpy);
SyncHandle();
#else
be_buf = __glXGetServerString(GLX_EXTENSIONS);
numbytes = strlen(be_buf) + 1;
len = __GLX_PAD(numbytes) >> 2;
#endif
length = len;
reply = (xGLXQueryExtensionsStringReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = len,
.n = numbytes
};
if (client->swapped) {
glxSwapQueryExtensionsStringReply(client, &reply, be_buf);
}
else {
WriteToClient(client, sz_xGLXQueryExtensionsStringReply, &reply);
WriteToClient(client, (int) (length << 2), be_buf);
}
return Success;
}
int
__glXQueryServerString(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXQueryServerStringReq *req = (xGLXQueryServerStringReq *) pc;
xGLXQueryServerStringReply reply;
int name;
GLint screen;
size_t length;
int len, numbytes;
char *be_buf;
#ifdef FWD_QUERY_REQ
xGLXQueryServerStringReq *be_req;
xGLXQueryServerStringReply be_reply;
DMXScreenInfo *dmxScreen;
Display *dpy;
#endif
name = req->name;
screen = req->screen;
/*
** Check if screen exists.
*/
if ((screen < 0) || (screen >= screenInfo.numScreens)) {
client->errorValue = screen;
return BadValue;
}
#ifdef FWD_QUERY_REQ
dmxScreen = &dmxScreens[screen];
/* Send the glXQueryServerString request */
dpy = GetBackEndDisplay(cl, screen);
LockDisplay(dpy);
GetReq(GLXQueryServerString, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXQueryServerString;
be_req->screen = DefaultScreen(dpy);
be_req->name = name;
_XReply(dpy, (xReply *) &be_reply, 0, False);
len = (int) be_reply.length;
numbytes = (int) be_reply.n;
be_buf = (char *) malloc(numbytes);
if (!be_buf) {
/* Throw data on the floor */
_XEatDataWords(dpy, len);
}
else {
_XReadPad(dpy, (char *) be_buf, numbytes);
}
UnlockDisplay(dpy);
SyncHandle();
#else
be_buf = __glXGetServerString(name);
numbytes = strlen(be_buf) + 1;
len = __GLX_PAD(numbytes) >> 2;
#endif
length = len;
reply = (xGLXQueryServerStringReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = length,
.n = numbytes
};
if (client->swapped) {
glxSwapQueryServerStringReply(client, &reply, be_buf);
}
else {
WriteToClient(client, sz_xGLXQueryServerStringReply, &reply);
WriteToClient(client, (int) (length << 2), be_buf);
}
return Success;
}
int
__glXClientInfo(__GLXclientState * cl, GLbyte * pc)
{
xGLXClientInfoReq *req = (xGLXClientInfoReq *) pc;
xGLXClientInfoReq *be_req;
const char *buf;
int from_screen = 0;
int to_screen = 0;
int s;
free(cl->GLClientextensions);
buf = (const char *) (req + 1);
cl->GLClientextensions = strdup(buf);
to_screen = screenInfo.numScreens - 1;
for (s = from_screen; s <= to_screen; s++) {
DMXScreenInfo *dmxScreen = &dmxScreens[s];
Display *dpy = GetBackEndDisplay(cl, s);
LockDisplay(dpy);
GetReq(GLXClientInfo, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXClientInfo;
be_req->major = req->major;
be_req->minor = req->minor;
be_req->length = req->length;
be_req->numbytes = req->numbytes;
Data(dpy, buf, req->numbytes);
UnlockDisplay(dpy);
SyncHandle();
}
return Success;
}
int
__glXUseXFont(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXUseXFontReq *req;
xGLXUseXFontReq *be_req;
FontPtr pFont;
__GLXcontext *glxc = NULL;
int from_screen = 0;
int to_screen = 0;
int s;
dmxFontPrivPtr pFontPriv;
DMXScreenInfo *dmxScreen;
Display *dpy;
req = (xGLXUseXFontReq *) pc;
if (req->contextTag != 0) {
glxc = __glXLookupContextByTag(cl, req->contextTag);
if (glxc) {
from_screen = to_screen = glxc->pScreen->myNum;
}
}
/*
** Font can actually be either the ID of a font or the ID of a GC
** containing a font.
*/
dixLookupResourceByType((void **) &pFont, req->font, RT_FONT,
NullClient, DixUnknownAccess);
if (!pFont) {
GC *pGC;
dixLookupResourceByType((void **) &pGC, req->font,
RT_GC, NullClient, DixUnknownAccess);
if (!pGC) {
client->errorValue = req->font;
return BadFont;
}
pFont = pGC->font;
}
pFontPriv = FontGetPrivate(pFont, dmxFontPrivateIndex);
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
}
#endif
for (s = from_screen; s <= to_screen; s++) {
dmxScreen = &dmxScreens[s];
dpy = GetBackEndDisplay(cl, s);
dmxSync(dmxScreen, 1);
LockDisplay(dpy);
GetReq(GLXUseXFont, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXUseXFont;
be_req->contextTag =
(glxc ? GetCurrentBackEndTag(cl, req->contextTag, s) : 0);
be_req->font = pFontPriv->font[s]->fid;
be_req->first = req->first;
be_req->count = req->count;
be_req->listBase = req->listBase;
UnlockDisplay(dpy);
SyncHandle();
XSync(dpy, False);
}
return Success;
}
/*
* start GLX 1.3 here
*/
int
__glXGetFBConfigs(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXGetFBConfigsReq *req = (xGLXGetFBConfigsReq *) pc;
xGLXGetFBConfigsReply reply;
__GLXFBConfig *pFBConfig;
CARD32 buf[2 * __GLX_TOTAL_FBCONFIG_PROPS];
int numAttribs = __GLX_TOTAL_FBCONFIG_PROPS;
unsigned int screen = req->screen;
int numFBConfigs, i, p;
__GLXscreenInfo *pGlxScreen;
if (screen >= screenInfo.numScreens) {
/* The client library must send a valid screen number. */
client->errorValue = screen;
return BadValue;
}
pGlxScreen = &__glXActiveScreens[screen];
numFBConfigs = __glXNumFBConfigs;
reply = (xGLXGetFBConfigsReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = (numFBConfigs * 2 * numAttribs * __GLX_SIZE_CARD32) >> 2,
.numFBConfigs = numFBConfigs,
.numAttribs = numAttribs
};
if (client->swapped) {
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&reply.sequenceNumber);
__GLX_SWAP_INT(&reply.length);
__GLX_SWAP_INT(&reply.numFBConfigs);
__GLX_SWAP_INT(&reply.numAttribs);
}
WriteToClient(client, sz_xGLXGetFBConfigsReply, &reply);
for (i = 0; i < numFBConfigs; i++) {
int associatedVisualId = 0;
int drawableTypeIndex;
pFBConfig = __glXFBConfigs[i * (screenInfo.numScreens + 1)];
p = 0;
/* core attributes */
buf[p++] = GLX_FBCONFIG_ID;
buf[p++] = pFBConfig->id;
buf[p++] = GLX_BUFFER_SIZE;
buf[p++] = pFBConfig->indexBits;
buf[p++] = GLX_LEVEL;
buf[p++] = pFBConfig->level;
buf[p++] = GLX_DOUBLEBUFFER;
buf[p++] = pFBConfig->doubleBufferMode;
buf[p++] = GLX_STEREO;
buf[p++] = pFBConfig->stereoMode;
buf[p++] = GLX_AUX_BUFFERS;
buf[p++] = pFBConfig->maxAuxBuffers;
buf[p++] = GLX_RED_SIZE;
buf[p++] = pFBConfig->redBits;
buf[p++] = GLX_GREEN_SIZE;
buf[p++] = pFBConfig->greenBits;
buf[p++] = GLX_BLUE_SIZE;
buf[p++] = pFBConfig->blueBits;
buf[p++] = GLX_ALPHA_SIZE;
buf[p++] = pFBConfig->alphaBits;
buf[p++] = GLX_DEPTH_SIZE;
buf[p++] = pFBConfig->depthBits;
buf[p++] = GLX_STENCIL_SIZE;
buf[p++] = pFBConfig->stencilBits;
buf[p++] = GLX_ACCUM_RED_SIZE;
buf[p++] = pFBConfig->accumRedBits;
buf[p++] = GLX_ACCUM_GREEN_SIZE;
buf[p++] = pFBConfig->accumGreenBits;
buf[p++] = GLX_ACCUM_BLUE_SIZE;
buf[p++] = pFBConfig->accumBlueBits;
buf[p++] = GLX_ACCUM_ALPHA_SIZE;
buf[p++] = pFBConfig->accumAlphaBits;
buf[p++] = GLX_RENDER_TYPE;
buf[p++] = pFBConfig->renderType;
buf[p++] = GLX_DRAWABLE_TYPE;
drawableTypeIndex = p;
buf[p++] = pFBConfig->drawableType;
buf[p++] = GLX_X_VISUAL_TYPE;
buf[p++] = pFBConfig->visualType;
buf[p++] = GLX_CONFIG_CAVEAT;
buf[p++] = pFBConfig->visualCaveat;
buf[p++] = GLX_TRANSPARENT_TYPE;
buf[p++] = pFBConfig->transparentType;
buf[p++] = GLX_TRANSPARENT_RED_VALUE;
buf[p++] = pFBConfig->transparentRed;
buf[p++] = GLX_TRANSPARENT_GREEN_VALUE;
buf[p++] = pFBConfig->transparentGreen;
buf[p++] = GLX_TRANSPARENT_BLUE_VALUE;
buf[p++] = pFBConfig->transparentBlue;
buf[p++] = GLX_TRANSPARENT_ALPHA_VALUE;
buf[p++] = pFBConfig->transparentAlpha;
buf[p++] = GLX_TRANSPARENT_INDEX_VALUE;
buf[p++] = pFBConfig->transparentIndex;
buf[p++] = GLX_MAX_PBUFFER_WIDTH;
buf[p++] = pFBConfig->maxPbufferWidth;
buf[p++] = GLX_MAX_PBUFFER_HEIGHT;
buf[p++] = pFBConfig->maxPbufferHeight;
buf[p++] = GLX_MAX_PBUFFER_PIXELS;
buf[p++] = pFBConfig->maxPbufferPixels;
/*
* find the visual of the back-end server and match a visual
* on the proxy.
* do only once - if a visual is not yet associated.
*/
if (pFBConfig->associatedVisualId == (unsigned int) -1) {
DMXScreenInfo *dmxScreen = &dmxScreens[screen];
__GLXFBConfig *be_pFBConfig =
__glXFBConfigs[i * (screenInfo.numScreens + 1) + screen + 1];
__GLXvisualConfig *pGlxVisual = NULL;
int v;
int found = 0;
for (v = 0; v < dmxScreen->numGlxVisuals; v++) {
if (dmxScreen->glxVisuals[v].vid ==
be_pFBConfig->associatedVisualId) {
pGlxVisual = &dmxScreen->glxVisuals[v];
break;
}
}
if (pGlxVisual) {
for (v = 0; v < pGlxScreen->numVisuals; v++) {
if (glxVisualsMatch(&pGlxScreen->pGlxVisual[v], pGlxVisual)) {
associatedVisualId = pGlxScreen->pGlxVisual[v].vid;
found = 1;
break;
}
}
}
if (!found) {
associatedVisualId = 0;
pFBConfig->drawableType &= ~(GLX_WINDOW_BIT);
buf[drawableTypeIndex] = pFBConfig->drawableType;
}
#ifdef PANORAMIX
else if (!noPanoramiXExtension) {
/* convert the associated visualId to the panoramix one */
pFBConfig->associatedVisualId =
PanoramiXTranslateVisualID(screen, v);
}
#endif
}
else {
associatedVisualId = pFBConfig->associatedVisualId;
}
buf[p++] = GLX_VISUAL_ID;
buf[p++] = associatedVisualId;
/* SGIS_multisample attributes */
buf[p++] = GLX_SAMPLES_SGIS;
buf[p++] = pFBConfig->multiSampleSize;
buf[p++] = GLX_SAMPLE_BUFFERS_SGIS;
buf[p++] = pFBConfig->nMultiSampleBuffers;
/* SGIX_pbuffer specific attributes */
buf[p++] = GLX_OPTIMAL_PBUFFER_WIDTH_SGIX;
buf[p++] = pFBConfig->optimalPbufferWidth;
buf[p++] = GLX_OPTIMAL_PBUFFER_HEIGHT_SGIX;
buf[p++] = pFBConfig->optimalPbufferHeight;
buf[p++] = GLX_VISUAL_SELECT_GROUP_SGIX;
buf[p++] = pFBConfig->visualSelectGroup;
if (client->swapped) {
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_INT_ARRAY((int *) buf, 2 * numAttribs);
}
WriteToClient(client, 2 * numAttribs * __GLX_SIZE_CARD32, buf);
}
return Success;
}
int
__glXGetFBConfigsSGIX(__GLXclientState * cl, GLbyte * pc)
{
xGLXGetFBConfigsSGIXReq *req = (xGLXGetFBConfigsSGIXReq *) pc;
xGLXGetFBConfigsReq new_req;
new_req.reqType = req->reqType;
new_req.glxCode = req->glxCode;
new_req.length = req->length;
new_req.screen = req->screen;
return (__glXGetFBConfigs(cl, (GLbyte *) &new_req));
}
int
__glXCreateWindow(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXCreateWindowReq *req = (xGLXCreateWindowReq *) pc;
int screen = req->screen;
GLXFBConfigID fbconfigId = req->fbconfig;
XID windowId = req->window;
XID glxwindowId = req->glxwindow;
DrawablePtr pDraw;
ScreenPtr pScreen;
__glXWindow *pGlxWindow;
__GLXFBConfig *pGlxFBConfig = NULL;
VisualPtr pVisual;
VisualID visId;
int i, rc;
void *val;
/*
** Check if windowId is valid
*/
rc = dixLookupDrawable(&pDraw, windowId, client, M_DRAWABLE_WINDOW,
DixAddAccess);
if (rc != Success)
return rc;
/*
** Check if screen of window matches screen of fbconfig.
*/
pScreen = pDraw->pScreen;
if (screen != pScreen->myNum) {
return BadMatch;
}
/*
** Find the FBConfigRec for this fbconfigid.
*/
if (!(pGlxFBConfig = glxLookupFBConfig(fbconfigId))) {
client->errorValue = fbconfigId;
return __glXBadFBConfig;
}
visId = pGlxFBConfig->associatedVisualId;
/*
** Check if the fbconfig supports rendering to windows
*/
if (!(pGlxFBConfig->drawableType & GLX_WINDOW_BIT)) {
return BadMatch;
}
if (visId != None) {
/*
** Check if the visual ID is valid for this screen.
*/
pVisual = pScreen->visuals;
for (i = 0; i < pScreen->numVisuals; i++, pVisual++) {
if (pVisual->vid == visId) {
break;
}
}
if (i == pScreen->numVisuals) {
client->errorValue = visId;
return BadValue;
}
/*
** Check if color buffer depth of fbconfig matches depth
** of window.
*/
if (pVisual->nplanes != pDraw->depth) {
return BadMatch;
}
}
else
/*
** The window was created with no visual that corresponds
** to fbconfig
*/
return BadMatch;
/*
** Check if there is already a fbconfig associated with this window
*/
if (Success == dixLookupResourceByType(&val,
glxwindowId, __glXWindowRes,
NullClient, DixUnknownAccess)) {
client->errorValue = glxwindowId;
return BadAlloc;
}
pGlxWindow = (__glXWindow *) malloc(sizeof(__glXWindow));
if (!pGlxWindow) {
return BadAlloc;
}
/*
** Register this GLX window as a resource
*/
if (!(AddResource(glxwindowId, __glXWindowRes, pGlxWindow))) {
return BadAlloc;
}
pGlxWindow->pDraw = pDraw;
pGlxWindow->type = GLX_GLXWINDOW_TYPE;
pGlxWindow->idExists = True;
pGlxWindow->refcnt = 0;
pGlxWindow->pGlxFBConfig = pGlxFBConfig;
pGlxWindow->pScreen = pScreen;
return Success;
}
int
__glXDestroyWindow(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXDestroyWindowReq *req = (xGLXDestroyWindowReq *) pc;
XID glxwindow = req->glxwindow;
void *val;
/*
** Check if it's a valid GLX window.
*/
if (Success != dixLookupResourceByType(&val,
glxwindow, __glXWindowRes,
NullClient, DixUnknownAccess)) {
client->errorValue = glxwindow;
return __glXBadDrawable;
}
/*
** The glx window destructor will check whether it's current before
** freeing anything.
*/
FreeResource(glxwindow, RT_NONE);
return Success;
}
int
__glXQueryContext(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
__GLXcontext *ctx;
xGLXQueryContextReq *req;
xGLXQueryContextReply reply;
int nProps;
int *sendBuf, *pSendBuf;
int nReplyBytes;
req = (xGLXQueryContextReq *) pc;
dixLookupResourceByType((void **) &ctx, req->context, __glXContextRes,
NullClient, DixUnknownAccess);
if (!ctx) {
client->errorValue = req->context;
return __glXBadContext;
}
nProps = 3;
reply = (xGLXQueryContextReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = nProps << 1,
.n = nProps
};
nReplyBytes = reply.length << 2;
sendBuf = (int *) malloc(nReplyBytes);
pSendBuf = sendBuf;
*pSendBuf++ = GLX_FBCONFIG_ID;
*pSendBuf++ = (int) (ctx->pFBConfig->id);
*pSendBuf++ = GLX_RENDER_TYPE;
*pSendBuf++ = renderTypeBitsToRenderTypeEnum(ctx->pFBConfig->renderType);
*pSendBuf++ = GLX_SCREEN;
*pSendBuf++ = (int) (ctx->pScreen->myNum);
if (client->swapped) {
__glXSwapQueryContextReply(client, &reply, sendBuf);
}
else {
WriteToClient(client, sz_xGLXQueryContextReply, &reply);
WriteToClient(client, nReplyBytes, sendBuf);
}
free((char *) sendBuf);
return Success;
}
int
__glXQueryContextInfoEXT(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
__GLXcontext *ctx;
xGLXQueryContextInfoEXTReq *req;
xGLXQueryContextInfoEXTReply reply;
int nProps;
int *sendBuf, *pSendBuf;
int nReplyBytes;
req = (xGLXQueryContextInfoEXTReq *) pc;
dixLookupResourceByType((void **) &ctx,
req->context, __glXContextRes,
client, DixReadAccess);
if (!ctx) {
client->errorValue = req->context;
return __glXBadContext;
}
nProps = 4;
reply = (xGLXQueryContextInfoEXTReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = nProps << 1,
.n = nProps
};
nReplyBytes = reply.length << 2;
sendBuf = (int *) malloc(nReplyBytes);
pSendBuf = sendBuf;
*pSendBuf++ = GLX_SHARE_CONTEXT_EXT;
*pSendBuf++ = (int) (ctx->share_id);
*pSendBuf++ = GLX_VISUAL_ID_EXT;
*pSendBuf++ = (int) (ctx->pVisual ? ctx->pVisual->vid : 0);
*pSendBuf++ = GLX_SCREEN_EXT;
*pSendBuf++ = (int) (ctx->pScreen->myNum);
*pSendBuf++ = GLX_FBCONFIG_ID;
*pSendBuf++ = (int) (ctx->pFBConfig ? ctx->pFBConfig->id : 0);
if (client->swapped) {
__glXSwapQueryContextInfoEXTReply(client, &reply, sendBuf);
}
else {
WriteToClient(client, sz_xGLXQueryContextInfoEXTReply, &reply);
WriteToClient(client, nReplyBytes, sendBuf);
}
free((char *) sendBuf);
return Success;
}
int
__glXCreatePbuffer(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXCreatePbufferReq *req = (xGLXCreatePbufferReq *) pc;
xGLXCreatePbufferReq *be_req;
int screen = req->screen;
GLXFBConfigID fbconfigId = req->fbconfig;
GLXPbuffer pbuffer = req->pbuffer;
__glXPbuffer *pGlxPbuffer;
int numAttribs = req->numAttribs;
int *attr;
ScreenPtr pScreen;
__GLXFBConfig *pGlxFBConfig;
__GLXFBConfig *be_pGlxFBConfig;
XID be_xid;
Display *dpy;
DMXScreenInfo *dmxScreen;
int s;
int from_screen, to_screen;
/*
** Look up screen and FBConfig.
*/
if (screen >= screenInfo.numScreens) {
/* The client library must send a valid screen number. */
client->errorValue = screen;
return BadValue;
}
pScreen = screenInfo.screens[screen];
/*
** Find the FBConfigRec for this fbconfigid.
*/
if (!(pGlxFBConfig = glxLookupFBConfig(fbconfigId))) {
client->errorValue = fbconfigId;
return __glXBadFBConfig;
}
/*
** Create the GLX part of the Pbuffer.
*/
pGlxPbuffer = (__glXPbuffer *) malloc(sizeof(__glXPbuffer));
if (!pGlxPbuffer) {
return BadAlloc;
}
pGlxPbuffer->be_xids = xallocarray(screenInfo.numScreens, sizeof(XID));
if (!pGlxPbuffer->be_xids) {
free(pGlxPbuffer);
return BadAlloc;
}
/*
* Allocate an XID on the back-end server(s) and send him the request
*/
from_screen = to_screen = screen;
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
}
#endif
for (s = from_screen; s <= to_screen; s++) {
dpy = GetBackEndDisplay(cl, s);
be_xid = XAllocID(dpy);
dmxScreen = &dmxScreens[s];
be_pGlxFBConfig = glxLookupBackEndFBConfig(pGlxFBConfig->id, s);
attr = (int *) (req + 1);
LockDisplay(dpy);
GetReqExtra(GLXCreatePbuffer, 2 * numAttribs * __GLX_SIZE_CARD32,
be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXCreatePbuffer;
be_req->screen = be_pGlxFBConfig->screen;
be_req->fbconfig = be_pGlxFBConfig->id;
be_req->pbuffer = be_xid;
be_req->numAttribs = numAttribs;
/* Send attributes */
if (attr != NULL) {
CARD32 *pca = (CARD32 *) (be_req + 1);
while (numAttribs-- > 0) {
*pca++ = *attr++; /* token */
*pca++ = *attr++; /* value */
}
}
UnlockDisplay(dpy);
SyncHandle();
pGlxPbuffer->be_xids[s] = be_xid;
}
pGlxPbuffer->idExists = True;
pGlxPbuffer->refcnt = 0;
pGlxPbuffer->pFBConfig = pGlxFBConfig;
pGlxPbuffer->pScreen = pScreen;
/*
** Register the resource.
*/
if (!(AddResource(pbuffer, __glXPbufferRes, pGlxPbuffer))) {
return BadAlloc;
}
return Success;
}
int
__glXDestroyPbuffer(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXDestroyPbufferReq *req = (xGLXDestroyPbufferReq *) pc;
xGLXDestroyPbufferReq *be_req;
GLXPbuffer pbuffer = req->pbuffer;
Display *dpy;
int screen;
DMXScreenInfo *dmxScreen;
__glXPbuffer *pGlxPbuffer;
int s;
int from_screen, to_screen;
/*
** Check if it's a valid Pbuffer
*/
dixLookupResourceByType((void **) &pGlxPbuffer, pbuffer,
__glXPbufferRes, NullClient, DixUnknownAccess);
if (!pGlxPbuffer) {
client->errorValue = pbuffer;
return __glXBadPbuffer;
}
screen = pGlxPbuffer->pScreen->myNum;
from_screen = to_screen = screen;
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
}
#endif
for (s = from_screen; s <= to_screen; s++) {
dpy = GetBackEndDisplay(cl, s);
dmxScreen = &dmxScreens[s];
/* send the destroy request to the back-end server */
LockDisplay(dpy);
GetReq(GLXDestroyPbuffer, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXDestroyPbuffer;
be_req->pbuffer = pGlxPbuffer->be_xids[s];
UnlockDisplay(dpy);
SyncHandle();
}
FreeResource(pbuffer, RT_NONE);
return Success;
}
int
__glXGetDrawableAttributes(__GLXclientState * cl, GLbyte * pc)
{
xGLXGetDrawableAttributesReq *req = (xGLXGetDrawableAttributesReq *) pc;
xGLXGetDrawableAttributesReq *be_req;
xGLXGetDrawableAttributesReply reply;
ClientPtr client = cl->client;
GLXDrawable drawId = req->drawable;
GLXDrawable be_drawable = 0;
DrawablePtr pDraw = NULL;
Display *dpy;
int screen, rc;
DMXScreenInfo *dmxScreen;
CARD32 *attribs = NULL;
int attribs_size = 0;
#ifdef PANORAMIX
PanoramiXRes *pXinDraw = NULL;
#endif
if (drawId != None) {
rc = dixLookupDrawable(&pDraw, drawId, client, 0, DixGetAttrAccess);
if (rc == Success && pDraw->type == DRAWABLE_WINDOW) {
WindowPtr pWin = (WindowPtr) pDraw;
be_drawable = 0;
screen = pWin->drawable.pScreen->myNum;
}
else {
/*
** Drawable is not a Window , GLXWindow or a GLXPixmap.
*/
client->errorValue = drawId;
return __glXBadDrawable;
}
if (!pDraw) {
__GLXpixmap *pGlxPixmap;
dixLookupResourceByType((void **) &pGlxPixmap,
drawId, __glXPixmapRes,
NullClient, DixUnknownAccess);
if (pGlxPixmap) {
pDraw = pGlxPixmap->pDraw;
screen = pGlxPixmap->pScreen->myNum;
be_drawable = pGlxPixmap->be_xids[screen];
}
}
if (!pDraw) {
__glXWindow *pGlxWindow;
dixLookupResourceByType((void **) &pGlxWindow,
drawId, __glXWindowRes,
NullClient, DixUnknownAccess);
if (pGlxWindow) {
pDraw = pGlxWindow->pDraw;
screen = pGlxWindow->pScreen->myNum;
be_drawable = 0;
}
}
if (!pDraw) {
__glXPbuffer *pGlxPbuffer;
dixLookupResourceByType((void **) &pGlxPbuffer,
drawId, __glXPbufferRes,
NullClient, DixUnknownAccess);
if (pGlxPbuffer) {
pDraw = (DrawablePtr) pGlxPbuffer;
screen = pGlxPbuffer->pScreen->myNum;
be_drawable = pGlxPbuffer->be_xids[screen];
}
}
}
if (!pDraw) {
/*
** Drawable is not a Window , GLXWindow or a GLXPixmap.
*/
client->errorValue = drawId;
return __glXBadDrawable;
}
/* if the drawable is a window or GLXWindow -
* we need to find the base id on the back-end server
*/
if (!be_drawable) {
WindowPtr pWin = (WindowPtr) pDraw;
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
if (Success != dixLookupResourceByClass((void **) &pXinDraw,
pDraw->id, XRC_DRAWABLE,
client, DixReadAccess)) {
client->errorValue = drawId;
return __glXBadDrawable;
}
dixLookupWindow(&pWin, pXinDraw->info[screen].id, client,
DixReadAccess);
}
#endif
if (pWin) {
be_drawable = (unsigned int) (DMX_GET_WINDOW_PRIV(pWin))->window;
if (!be_drawable) {
/* it might be that the window did not created yet on the */
/* back-end server (lazy window creation option), force */
/* creation of the window */
dmxCreateAndRealizeWindow(pWin, TRUE);
be_drawable =
(unsigned int) (DMX_GET_WINDOW_PRIV(pWin))->window;
}
}
else {
client->errorValue = drawId;
return __glXBadDrawable;
}
}
/* send the request to the back-end server */
dpy = GetBackEndDisplay(cl, screen);
dmxScreen = &dmxScreens[screen];
/* make sure drawable exists on back-end */
dmxSync(dmxScreen, 1);
LockDisplay(dpy);
GetReq(GLXGetDrawableAttributes, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXGetDrawableAttributes;
be_req->drawable = be_drawable;
be_req->length = req->length;
if (!_XReply(dpy, (xReply *) &reply, 0, False)) {
UnlockDisplay(dpy);
SyncHandle();
return (BE_TO_CLIENT_ERROR(dmxLastErrorEvent.error_code));
}
if (reply.numAttribs) {
attribs = xallocarray(reply.numAttribs, 2 * __GLX_SIZE_CARD32);
if (attribs == NULL) {
UnlockDisplay(dpy);
SyncHandle();
return BadAlloc;
}
attribs_size = 2 * reply.numAttribs * __GLX_SIZE_CARD32;
_XRead(dpy, (char *) attribs, attribs_size);
}
UnlockDisplay(dpy);
SyncHandle();
/* send the reply back to the client */
reply.sequenceNumber = client->sequence;
if (client->swapped) {
__glXSwapGetDrawableAttributesReply(client, &reply, (int *) attribs);
}
else {
WriteToClient(client, sz_xGLXGetDrawableAttributesReply, &reply);
WriteToClient(client, attribs_size, attribs);
}
free(attribs);
return Success;
}
int
__glXChangeDrawableAttributes(__GLXclientState * cl, GLbyte * pc)
{
xGLXChangeDrawableAttributesReq *req =
(xGLXChangeDrawableAttributesReq *) pc;
xGLXChangeDrawableAttributesReq *be_req;
ClientPtr client = cl->client;
GLXDrawable drawId = req->drawable;
GLXDrawable be_drawable = 0;
DrawablePtr pDraw = NULL;
Display *dpy;
int screen, rc;
DMXScreenInfo *dmxScreen;
if (drawId != None) {
rc = dixLookupDrawable(&pDraw, drawId, client, 0, DixSetAttrAccess);
if (rc == Success && pDraw->type == DRAWABLE_WINDOW) {
be_drawable = 0;
screen = pDraw->pScreen->myNum;
}
else {
/*
** Drawable is not a Window , GLXWindow or a GLXPixmap.
*/
client->errorValue = drawId;
return __glXBadDrawable;
}
if (!pDraw) {
__GLXpixmap *pGlxPixmap;
dixLookupResourceByType((void **) &pGlxPixmap,
drawId, __glXPixmapRes,
NullClient, DixUnknownAccess);
if (pGlxPixmap) {
pDraw = pGlxPixmap->pDraw;
screen = pGlxPixmap->pScreen->myNum;
be_drawable = pGlxPixmap->be_xids[screen];
}
}
if (!pDraw) {
__glXWindow *pGlxWindow;
dixLookupResourceByType((void **) &pGlxWindow,
drawId, __glXWindowRes,
NullClient, DixUnknownAccess);
if (pGlxWindow) {
pDraw = pGlxWindow->pDraw;
screen = pGlxWindow->pScreen->myNum;
be_drawable = 0;
}
}
if (!pDraw) {
__glXPbuffer *pGlxPbuffer;
dixLookupResourceByType((void **) &pGlxPbuffer,
drawId, __glXPbufferRes,
NullClient, DixUnknownAccess);
if (pGlxPbuffer) {
pDraw = (DrawablePtr) pGlxPbuffer;
screen = pGlxPbuffer->pScreen->myNum;
be_drawable = pGlxPbuffer->be_xids[screen];
}
}
}
if (!pDraw) {
/*
** Drawable is not a Window , GLXWindow or a GLXPixmap.
*/
client->errorValue = drawId;
return __glXBadDrawable;
}
/* if the drawable is a window or GLXWindow -
* we need to find the base id on the back-end server
*/
if (!be_drawable) {
WindowPtr pWin = (WindowPtr) pDraw;
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
PanoramiXRes *pXinDraw;
if (Success != dixLookupResourceByClass((void **) &pXinDraw,
pDraw->id, XRC_DRAWABLE,
client, DixReadAccess)) {
client->errorValue = drawId;
return __glXBadDrawable;
}
dixLookupWindow(&pWin, pXinDraw->info[screen].id, client,
DixReadAccess);
}
#endif
if (pWin) {
be_drawable = (unsigned int) (DMX_GET_WINDOW_PRIV(pWin))->window;
if (!be_drawable) {
/* it might be that the window did not created yet on the */
/* back-end server (lazy window creation option), force */
/* creation of the window */
dmxCreateAndRealizeWindow(pWin, TRUE);
be_drawable =
(unsigned int) (DMX_GET_WINDOW_PRIV(pWin))->window;
}
}
else {
client->errorValue = drawId;
return __glXBadDrawable;
}
}
/* send the request to the back-end server */
dpy = GetBackEndDisplay(cl, screen);
dmxScreen = &dmxScreens[screen];
/* make sure drawable exists on back-end */
dmxSync(dmxScreen, 1);
LockDisplay(dpy);
GetReqExtra(GLXChangeDrawableAttributes,
2 * req->numAttribs * __GLX_SIZE_CARD32, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = X_GLXChangeDrawableAttributes;
be_req->drawable = be_drawable;
be_req->numAttribs = req->numAttribs;
be_req->length = req->length;
UnlockDisplay(dpy);
SyncHandle();
return Success;
}
int
__glXSendLargeCommand(__GLXclientState * cl, GLXContextTag contextTag)
{
ClientPtr client = cl->client;
xGLXRenderLargeReq *req;
GLint maxSize, amount;
GLint totalRequests, requestNumber;
GLint dataLen;
GLbyte *data;
__GLXcontext *glxc;
int s;
int from_screen, to_screen;
maxSize = cl->largeCmdMaxReqDataSize - (GLint) sizeof(xGLXRenderLargeReq);
dataLen = cl->largeCmdBytesTotal;
totalRequests = (dataLen / maxSize);
if (dataLen % maxSize)
totalRequests++;
glxc = __glXLookupContextByTag(cl, contextTag);
if (!glxc) {
client->errorValue = contextTag;
return __glXBadContext;
}
from_screen = to_screen = glxc->pScreen->myNum;
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
}
#endif
/*
** Send enough requests until the whole array is sent.
*/
requestNumber = 1;
data = cl->largeCmdBuf;
while (dataLen > 0) {
amount = dataLen;
if (amount > maxSize) {
amount = maxSize;
}
for (s = from_screen; s <= to_screen; s++) {
Display *dpy = GetBackEndDisplay(cl, s);
DMXScreenInfo *dmxScreen = &dmxScreens[s];
LockDisplay(dpy);
GetReq(GLXRenderLarge, req);
req->reqType = dmxScreen->glxMajorOpcode;
req->glxCode = X_GLXRenderLarge;
req->contextTag = GetCurrentBackEndTag(cl, contextTag, s);
req->length += (amount + 3) >> 2;
req->requestNumber = requestNumber++;
req->requestTotal = totalRequests;
req->dataBytes = amount;
Data(dpy, ((const char *) data), amount);
dataLen -= amount;
data = ((GLbyte *) data) + amount;
UnlockDisplay(dpy);
SyncHandle();
}
}
return Success;
}
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