/*
* 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
}
CRContext *
crStateCreateContextEx(const CRLimitsState *limits, GLint visBits, CRContext *share, GLint presetID)
{
if (presetID>0)
{
CRASSERT(!g_availableContexts[presetID]);
g_availableContexts[presetID] = 1;
return crStateCreateContextId(presetID, limits, visBits, share);
}
else return crStateCreateContext(limits, visBits, share);
}
CRContext *
crStateCreateContext(const CRLimitsState *limits, GLint visBits, CRContext *share)
{
int i;
/* Must have created the default context via crStateInit() first */
CRASSERT(defaultContext);
for (i = 1 ; i < CR_MAX_CONTEXTS ; i++)
{
if (!g_availableContexts[i])
{
g_availableContexts[i] = 1; /* it's no longer available */
return crStateCreateContextId( i, limits, visBits, share );
}
}
crError( "Out of available contexts in crStateCreateContexts (max %d)",
CR_MAX_CONTEXTS );
/* never get here */
return NULL;
}
/*
* 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;
if (defaultContext) {
/* Free the default/NULL context.
* Ensures context bits are reset */
crStateFreeContext(defaultContext);
#ifdef CHROMIUM_THREADSAFE
crSetTSD(&__contextTSD, NULL);
#else
__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
crSetTSD(&__contextTSD, defaultContext);
#else
__currentContext = defaultContext;
#endif
}
