b2Contact* b2Contact::Create(b2Fixture* fixtureA, int32 indexA, b2Fixture* fixtureB, int32 indexB, b2BlockAllocator* allocator)
{
if (s_initialized == false)
{
InitializeRegisters();
s_initialized = true;
}
b2Shape::Type type1 = fixtureA->GetType();
b2Shape::Type type2 = fixtureB->GetType();
b2Assert(0 <= type1 && type1 < b2Shape::e_typeCount);
b2Assert(0 <= type2 && type2 < b2Shape::e_typeCount);
b2ContactCreateFcn* createFcn = s_registers[type1][type2].createFcn;
if (createFcn)
{
if (s_registers[type1][type2].primary)
{
return createFcn(fixtureA, indexA, fixtureB, indexB, allocator);
}
else
{
return createFcn(fixtureB, indexB, fixtureA, indexA, allocator);
}
}
else
{
return NULL;
}
}
int initApi(const char *driverLibName, const char *implLibName, T **dispatchTable, T *(*accessor)())
{
void *driverLib = dlopen(driverLibName, RTLD_NOW | RTLD_LOCAL);
if (driverLib == NULL) {
ALOGE("failed to load %s : %s\n", driverLibName, dlerror());
return -1;
}
typedef T *(*createFcn_t)(void *, T *(*accessor)());
createFcn_t createFcn;
createFcn = (createFcn_t) dlsym(driverLib, "createFromLib");
if (createFcn == NULL) {
ALOGE("failed to load createFromLib constructor function\n");
return -1;
}
void *implLib = dlopen(implLibName, RTLD_NOW | RTLD_LOCAL);
if (implLib == NULL) {
ALOGE("couldn't open %s", implLibName);
return -2;
}
*dispatchTable = createFcn(implLib, accessor);
if (*dispatchTable == NULL) {
return -3;
}
// XXX - we do close the impl library since it doesn't have data, as far as we concern.
dlclose(implLib);
// XXX - we do not dlclose the driver library, so its not initialized when
// later loaded by android - is this required?
ALOGD("loading %s into %s complete\n", implLibName, driverLibName);
return 0;
}