bool
mutex_lock(mutex_t* mutex) {
#if !BUILD_DEPLOY
profile_trylock(mutex->name.str, mutex->name.length);
#endif
#if FOUNDATION_PLATFORM_WINDOWS
EnterCriticalSection((CRITICAL_SECTION*)mutex->csection);
#elif FOUNDATION_PLATFORM_POSIX || FOUNDATION_PLATFORM_PNACL
if (pthread_mutex_lock(&mutex->mutex) != 0) {
FOUNDATION_ASSERT_FAILFORMAT("unable to lock mutex %s", mutex->name.str);
return false;
}
#else
# error mutex_lock not implemented
#endif
#if !BUILD_DEPLOY
profile_lock(mutex->name.str, mutex->name.length);
#endif
FOUNDATION_ASSERT_MSGFORMAT(!mutex->lockcount ||
(thread_id() == mutex->lockedthread),
"Mutex lock acquired with lockcount > 0 (%d) and locked thread not self (%" PRIx64 " != %" PRIx64
")", mutex->lockcount, mutex->lockedthread, thread_id());
if (!mutex->lockcount)
mutex->lockedthread = thread_id();
++mutex->lockcount;
return true;
}
objectmap_t* objectmap_allocate( unsigned int size )
{
uint64_t bits;
unsigned int ip;
uintptr_t next_indexshift;
objectmap_t* map;
void** slot;
FOUNDATION_ASSERT_MSG( size > 2, "Invalid objectmap size" );
if( size <= 2 )
size = 2;
bits = math_round( math_log2( (real)size ) ); //Number of bits needed
FOUNDATION_ASSERT_MSGFORMAT( bits < 50, "Invalid objectmap size %d", size );
//Top two bits unused for Lua compatibility
map = memory_allocate_zero( sizeof( objectmap_t ) + ( sizeof( void* ) * size ), 16, MEMORY_PERSISTENT );
map->size_bits = bits;
map->id_max = ((1ULL<<(62ULL-bits))-1);
map->size = size;
map->mask_index = ((1ULL<<bits)-1ULL);
map->mask_id = ( 0x3FFFFFFFFFFFFFFFULL & ~map->mask_index );
atomic_store64( &map->free, 0 );
atomic_store64( &map->id, 1 );
slot = map->map;
for( ip = 0, next_indexshift = 3; ip < ( size - 1 ); ++ip, next_indexshift += 2, ++slot )
*slot = (void*)next_indexshift;
*slot = (void*)((uintptr_t)-1);
return map;
}
size_t
render_vertex_decl_calculate_size(const render_vertex_decl_t* decl) {
size_t size = 0;
for (unsigned int i = 0; i < decl->num_attributes; ++i) {
FOUNDATION_ASSERT_MSGFORMAT(decl->attribute[i].format <= VERTEXFORMAT_UNKNOWN,
"Invalid vertex format type %d index %d", decl->attribute[i].format, i);
size_t end = decl->attribute[i].offset + _vertex_format_size[ decl->attribute[i].format ];
if (end > size)
size = end;
}
return size;
}
