void crStateMakeCurrent( CRContext *ctx )
{
CRContext *current = GetCurrentContext();
if (ctx == NULL)
ctx = defaultContext;
if (current == ctx)
return; /* no-op */
CRASSERT(ctx);
if (current) {
/* Check to see if the differencer exists first,
we may not have one, aka the packspu */
if (diff_api.AlphaFunc)
crStateSwitchContext( current, ctx );
}
#ifdef CHROMIUM_THREADSAFE
crSetTSD(&__contextTSD, ctx);
#else
__currentContext = ctx;
#endif
/* ensure matrix state is also current */
crStateMatrixMode(ctx->transform.matrixMode);
}
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
}
