/** Lists all available OpenCL implementations. */
public static CLPlatform[] listPlatforms() {
Pointer<Integer> pCount = allocateInt();
error(getPlatformIDs(0, null, pCount));
int nPlats = pCount.get();
if (nPlats == 0) return new CLPlatform[0];
Pointer<cl_platform_id> ids = allocateTypedPointers(cl_platform_id.class, nPlats);
error(getPlatformIDs(nPlats, ids, null));
CLPlatform[] platforms = new CLPlatform[nPlats];
for (int i = 0; i < nPlats; i++) {
platforms[i] = new CLPlatform(ids.get(i));
}
return platforms;
}
public boolean isValid() {
Pointer<Integer> pCount = allocateInt();
int err;
try {
err = clIcdGetPlatformIDsKHR(0, null, pCount);
} catch (Throwable th) {
try {
err = clGetPlatformIDs(0, null, pCount);
} catch (Throwable th2) {
return false;
}
}
return err == OpenCLLibrary.CL_SUCCESS && pCount.get() > 0;
}