#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <string.h>
#include "glxserver.h"
#include <windowstr.h>
#include <propertyst.h>
#include <registry.h>
#include "privates.h"
#include <os.h>
#include "unpack.h"
#include "glxutil.h"
#include "glxext.h"
#include "indirect_table.h"
#include "indirect_util.h"
__GLXcontext *__glXLastContext;
__GLXcontext *__glXContextList;
RESTYPE __glXContextRes;
RESTYPE __glXDrawableRes;
xGLXSingleReply __glXReply;
static DevPrivateKeyRec glxClientPrivateKeyRec;
#define glxClientPrivateKey (&glxClientPrivateKeyRec)
ClientPtr __pGlxClient;
static int __glXDispatch(ClientPtr);
static void ResetExtension(ExtensionEntry* extEntry)
{
__glXFlushContextCache();
}
void __glXResetLargeCommandStatus(__GLXclientState *cl)
{
cl->largeCmdBytesSoFar = 0;
cl->largeCmdBytesTotal = 0;
cl->largeCmdRequestsSoFar = 0;
cl->largeCmdRequestsTotal = 0;
}
static int ContextGone(__GLXcontext* cx, XID id)
{
cx->idExists = GL_FALSE;
if (!cx->isCurrent) {
__glXFreeContext(cx);
}
return True;
}
static __GLXcontext *glxPendingDestroyContexts;
static __GLXcontext *glxAllContexts;
static int glxServerLeaveCount;
static int glxBlockClients;
static Bool DrawableGone(__GLXdrawable *glxPriv, XID xid)
{
__GLXcontext *c, *next;
if (glxPriv->type == GLX_DRAWABLE_WINDOW) {
if (glxPriv->drawId != glxPriv->pDraw->id) {
if (xid == glxPriv->drawId)
FreeResourceByType(glxPriv->pDraw->id, __glXDrawableRes, TRUE);
else
FreeResourceByType(glxPriv->drawId, __glXDrawableRes, TRUE);
}
}
for (c = glxAllContexts; c; c = next) {
next = c->next;
if (c->isCurrent && (c->drawPriv == glxPriv || c->readPriv == glxPriv)) {
(*c->loseCurrent)(c);
c->isCurrent = GL_FALSE;
if (c == __glXLastContext)
__glXFlushContextCache();
}
if (c->drawPriv == glxPriv)
c->drawPriv = NULL;
if (c->readPriv == glxPriv)
c->readPriv = NULL;
}
if (glxPriv->type == GLX_DRAWABLE_PIXMAP)
glxPriv->pDraw->pScreen->DestroyPixmap((PixmapPtr)glxPriv->pDraw);
glxPriv->destroy(glxPriv);
return True;
}
void __glXAddToContextList(__GLXcontext *cx)
{
cx->next = glxAllContexts;
glxAllContexts = cx;
}
static void __glXRemoveFromContextList(__GLXcontext *cx)
{
__GLXcontext *c, *prev;
if (cx == glxAllContexts)
glxAllContexts = cx->next;
else {
prev = glxAllContexts;
for (c = glxAllContexts; c; c = c->next) {
if (c == cx)
prev->next = c->next;
prev = c;
}
}
}
GLboolean __glXFreeContext(__GLXcontext *cx)
{
if (cx->idExists || cx->isCurrent) return GL_FALSE;
free(cx->feedbackBuf);
free(cx->selectBuf);
if (cx == __glXLastContext) {
__glXFlushContextCache();
}
__glXRemoveFromContextList(cx);
if (!glxBlockClients) {
__glXleaveServer(GL_FALSE);
cx->destroy(cx);
__glXenterServer(GL_FALSE);
} else {
cx->next = glxPendingDestroyContexts;
glxPendingDestroyContexts = cx;
}
return GL_TRUE;
}
static GLboolean errorOccured = GL_FALSE;
void __glXErrorCallBack(GLenum code)
{
errorOccured = GL_TRUE;
}
void __glXClearErrorOccured(void)
{
errorOccured = GL_FALSE;
}
GLboolean __glXErrorOccured(void)
{
return errorOccured;
}
static int __glXErrorBase;
int __glXEventBase;
int __glXError(int error)
{
return __glXErrorBase + error;
}
__GLXclientState *
glxGetClient(ClientPtr pClient)
{
return dixLookupPrivate(&pClient->devPrivates, glxClientPrivateKey);
}
static void
glxClientCallback (CallbackListPtr *list,
pointer closure,
pointer data)
{
NewClientInfoRec *clientinfo = (NewClientInfoRec *) data;
ClientPtr pClient = clientinfo->client;
__GLXclientState *cl = glxGetClient(pClient);
switch (pClient->clientState) {
case ClientStateRunning:
cl->GLClientmajorVersion = 1;
cl->GLClientminorVersion = 0;
cl->client = pClient;
break;
case ClientStateGone:
free(cl->returnBuf);
free(cl->largeCmdBuf);
free(cl->GLClientextensions);
break;
default:
break;
}
}
static __GLXprovider *__glXProviderStack;
void GlxPushProvider(__GLXprovider *provider)
{
provider->next = __glXProviderStack;
__glXProviderStack = provider;
}
void GlxExtensionInit(void)
{
ExtensionEntry *extEntry;
ScreenPtr pScreen;
int i;
__GLXprovider *p;
Bool glx_provided = False;
__glXContextRes = CreateNewResourceType((DeleteType)ContextGone,
"GLXContext");
__glXDrawableRes = CreateNewResourceType((DeleteType)DrawableGone,
"GLXDrawable");
if (!__glXContextRes || !__glXDrawableRes)
return;
if (!dixRegisterPrivateKey(&glxClientPrivateKeyRec, PRIVATE_CLIENT, sizeof (__GLXclientState)))
return;
if (!AddCallback (&ClientStateCallback, glxClientCallback, 0))
return;
for (i = 0; i < screenInfo.numScreens; i++) {
pScreen = screenInfo.screens[i];
for (p = __glXProviderStack; p != NULL; p = p->next) {
__GLXscreen *glxScreen;
glxScreen = p->screenProbe(pScreen);
if (glxScreen != NULL) {
if (glxScreen->GLXminor < glxMinorVersion)
glxMinorVersion = glxScreen->GLXminor;
LogMessage(X_INFO,
"GLX: Initialized %s GL provider for screen %d\n",
p->name, i);
break;
}
}
if (!p)
LogMessage(X_INFO,
"GLX: no usable GL providers found for screen %d\n", i);
else
glx_provided = True;
}
if (!glx_provided)
return;
extEntry = AddExtension(GLX_EXTENSION_NAME, __GLX_NUMBER_EVENTS,
__GLX_NUMBER_ERRORS, __glXDispatch,
__glXDispatch, ResetExtension,
StandardMinorOpcode);
if (!extEntry) {
FatalError("__glXExtensionInit: AddExtensions failed\n");
return;
}
if (!AddExtensionAlias(GLX_EXTENSION_ALIAS, extEntry)) {
ErrorF("__glXExtensionInit: AddExtensionAlias failed\n");
return;
}
__glXErrorBase = extEntry->errorBase;
__glXEventBase = extEntry->eventBase;
}
void __glXFlushContextCache(void)
{
__glXLastContext = 0;
}
__GLXcontext *__glXForceCurrent(__GLXclientState *cl, GLXContextTag tag,
int *error)
{
__GLXcontext *cx;
cx = (__GLXcontext *) __glXLookupContextByTag(cl, tag);
if (!cx) {
cl->client->errorValue = tag;
*error = __glXError(GLXBadContextTag);
return 0;
}
if (!cx->isDirect) {
if (cx->drawPriv == NULL) {
*error = __glXError(GLXBadCurrentWindow);
return 0;
}
}
if (cx->wait && (*cx->wait)(cx, cl, error))
return NULL;
if (cx == __glXLastContext) {
return cx;
}
if (!cx->isDirect) {
if (!(*cx->forceCurrent)(cx)) {
cl->client->errorValue = cx->id;
*error = __glXError(GLXBadContextState);
return 0;
}
}
__glXLastContext = cx;
return cx;
}
void glxSuspendClients(void)
{
int i;
for (i = 1; i < currentMaxClients; i++) {
if (clients[i] && glxGetClient(clients[i])->inUse)
IgnoreClient(clients[i]);
}
glxBlockClients = TRUE;
}
void glxResumeClients(void)
{
__GLXcontext *cx, *next;
int i;
glxBlockClients = FALSE;
for (i = 1; i < currentMaxClients; i++) {
if (clients[i] && glxGetClient(clients[i])->inUse)
AttendClient(clients[i]);
}
__glXleaveServer(GL_FALSE);
for (cx = glxPendingDestroyContexts; cx != NULL; cx = next) {
next = cx->next;
cx->destroy(cx);
}
glxPendingDestroyContexts = NULL;
__glXenterServer(GL_FALSE);
}
static void
__glXnopEnterServer(GLboolean rendering)
{
}
static void
__glXnopLeaveServer(GLboolean rendering)
{
}
static void (*__glXenterServerFunc)(GLboolean) = __glXnopEnterServer;
static void (*__glXleaveServerFunc)(GLboolean) = __glXnopLeaveServer;
void __glXsetEnterLeaveServerFuncs(void (*enter)(GLboolean),
void (*leave)(GLboolean))
{
__glXenterServerFunc = enter;
__glXleaveServerFunc = leave;
}
void __glXenterServer(GLboolean rendering)
{
glxServerLeaveCount--;
if (glxServerLeaveCount == 0)
(*__glXenterServerFunc)(rendering);
}
void __glXleaveServer(GLboolean rendering)
{
if (glxServerLeaveCount == 0)
(*__glXleaveServerFunc)(rendering);
glxServerLeaveCount++;
}
static int __glXDispatch(ClientPtr client)
{
REQUEST(xGLXSingleReq);
CARD8 opcode;
__GLXdispatchSingleProcPtr proc;
__GLXclientState *cl;
int retval;
opcode = stuff->glxCode;
cl = glxGetClient(client);
cl->inUse = TRUE;
if ((cl->largeCmdRequestsSoFar != 0) && (opcode != X_GLXRenderLarge)) {
client->errorValue = stuff->glxCode;
return __glXError(GLXBadLargeRequest);
}
if (glxBlockClients) {
ResetCurrentRequest(client);
client->sequence--;
IgnoreClient(client);
return Success;
}
proc = (__GLXdispatchSingleProcPtr) __glXGetProtocolDecodeFunction(& Single_dispatch_info,
opcode,
client->swapped);
if (proc != NULL) {
GLboolean rendering = opcode <= X_GLXRenderLarge;
__glXleaveServer(rendering);
__pGlxClient = client;
retval = (*proc)(cl, (GLbyte *) stuff);
__glXenterServer(rendering);
}
else {
retval = BadRequest;
}
return retval;
}