DECLEXPORT(void) STATE_APIENTRY crStateGLSLDestroy(CRContext *ctx)
{
CRContext *g = GetCurrentContext();
/*@todo: hack to allow crStateFreeGLSLProgram to work correctly,
as the current context isn't the one being destroyed*/
#ifdef CHROMIUM_THREADSAFE
CRASSERT(g != ctx);
VBoxTlsRefAddRef(ctx); /* <- this is a hack to avoid subsequent SetCurrentContext(g) do recursive Destroy for ctx */
if (g)
VBoxTlsRefAddRef(g); /* <- ensure the g is not destroyed by the following SetCurrentContext call */
SetCurrentContext(ctx);
#else
__currentContext = ctx;
#endif
crFreeHashtable(ctx->glsl.programs, crStateFreeGLSLProgram);
crFreeHashtable(ctx->glsl.shaders, crStateFreeGLSLShader);
#ifdef CHROMIUM_THREADSAFE
SetCurrentContext(g);
if (g)
VBoxTlsRefRelease(g);
VBoxTlsRefRelease(ctx); /* <- restore back the cRefs (see above) */
#else
__currentContext = g;
#endif
}
void crStateDestroyContext( CRContext *ctx )
{
CRContext *current = GetCurrentContext();
if (current == ctx) {
/* destroying the current context - have to be careful here */
CRASSERT(defaultContext);
/* Check to see if the differencer exists first,
we may not have one, aka the packspu */
if (diff_api.AlphaFunc)
crStateSwitchContext(current, defaultContext);
#ifdef CHROMIUM_THREADSAFE
SetCurrentContext(defaultContext);
#else
__currentContext = defaultContext;
#endif
/* ensure matrix state is also current */
crStateMatrixMode(defaultContext->transform.matrixMode);
}
g_availableContexts[ctx->id] = 0;
#ifdef CHROMIUM_THREADSAFE
VBoxTlsRefRelease(ctx);
#else
crStateFreeContext(ctx);
#endif
}
/*
* Allocate the state (dirty) bits data structures.
* This should be called before we create any contexts.
* We'll also create the default/NULL context at this time and make
* it the current context by default. This means that if someone
* tries to set GL state before calling MakeCurrent() they'll be
* modifying the default state object, and not segfaulting on a NULL
* pointer somewhere.
*/
void crStateInit(void)
{
unsigned int i;
/* Purely initialize the context bits */
if (!__currentBits) {
__currentBits = (CRStateBits *) crCalloc( sizeof(CRStateBits) );
crStateClientInitBits( &(__currentBits->client) );
crStateLightingInitBits( &(__currentBits->lighting) );
} else
crWarning("State tracker is being re-initialized..\n");
for (i=0;i<CR_MAX_CONTEXTS;i++)
g_availableContexts[i] = 0;
#ifdef CHROMIUM_THREADSAFE
if (!__isContextTLSInited)
{
# ifndef RT_OS_WINDOWS
/* tls destructor is implemented for all platforms except windows*/
crInitTSDF(&__contextTSD, crStateThreadTlsDtor);
# else
/* windows should do cleanup via DllMain THREAD_DETACH notification */
crInitTSD(&__contextTSD);
# endif
__isContextTLSInited = 1;
}
#endif
if (defaultContext) {
/* Free the default/NULL context.
* Ensures context bits are reset */
#ifdef CHROMIUM_THREADSAFE
SetCurrentContext(NULL);
VBoxTlsRefRelease(defaultContext);
#else
crStateFreeContext(defaultContext);
__currentContext = NULL;
#endif
}
/* Reset diff_api */
crMemZero(&diff_api, sizeof(SPUDispatchTable));
/* Allocate the default/NULL context */
defaultContext = crStateCreateContextId(0, NULL, CR_RGB_BIT, NULL);
CRASSERT(g_availableContexts[0] == 0);
g_availableContexts[0] = 1; /* in use forever */
#ifdef CHROMIUM_THREADSAFE
SetCurrentContext(defaultContext);
#else
__currentContext = defaultContext;
#endif
}
void
stubDestroyContext( unsigned long contextId )
{
ContextInfo *context;
if (!stub.contextTable) {
return;
}
/* the lock order is windowTable->contextTable (see wglMakeCurrent_prox, glXMakeCurrent)
* this is why we need to take a windowTable lock since we will later do stub.windowTable access & locking */
crHashtableLock(stub.windowTable);
crHashtableLock(stub.contextTable);
context = (ContextInfo *) crHashtableSearch(stub.contextTable, contextId);
if (context)
stubDestroyContextLocked(context);
else
crError("No context.");
#ifdef CHROMIUM_THREADSAFE
if (stubGetCurrentContext() == context) {
stubSetCurrentContext(NULL);
}
VBoxTlsRefMarkDestroy(context);
VBoxTlsRefRelease(context);
#else
if (stubGetCurrentContext() == context) {
stubSetCurrentContext(NULL);
}
stubContextFree(context);
#endif
crHashtableUnlock(stub.contextTable);
crHashtableUnlock(stub.windowTable);
}
static DECLCALLBACK(void) stubThreadTlsDtor(void *pvValue)
{
ContextInfo *pCtx = (ContextInfo*)pvValue;
VBoxTlsRefRelease(pCtx);
}
static DECLCALLBACK(void) crStateThreadTlsDtor(void *pvValue)
{
CRContext *pCtx = (CRContext*)pvValue;
VBoxTlsRefRelease(pCtx);
}
static void stubThreadTlsDtor(void *pvValue)
{
ContextInfo *pCtx = (ContextInfo*)pvValue;
VBoxTlsRefRelease(pCtx);
}