private final int gluScaleImageJava(
int format,
int widthin,
int heightin,
int typein,
Buffer datain,
int widthout,
int heightout,
int typeout,
Buffer dataout) {
ByteBuffer in = null;
ByteBuffer out = null;
in = copyToByteBuffer(datain);
if (dataout instanceof ByteBuffer) {
out = (ByteBuffer) dataout;
} else if (dataout instanceof ShortBuffer) {
out = Buffers.newDirectByteBuffer(dataout.remaining() * Buffers.SIZEOF_SHORT);
} else if (dataout instanceof IntBuffer) {
out = Buffers.newDirectByteBuffer(dataout.remaining() * Buffers.SIZEOF_INT);
} else if (dataout instanceof FloatBuffer) {
out = Buffers.newDirectByteBuffer(dataout.remaining() * Buffers.SIZEOF_FLOAT);
} else {
throw new IllegalArgumentException(
"Unsupported destination buffer type (must be byte, short, int, or float)");
}
int errno =
Mipmap.gluScaleImage(
getCurrentGL2(),
format,
widthin,
heightin,
typein,
in,
widthout,
heightout,
typeout,
out);
if (errno == 0) {
out.rewind();
if (out != dataout) {
if (dataout instanceof ShortBuffer) {
((ShortBuffer) dataout).put(out.asShortBuffer());
} else if (dataout instanceof IntBuffer) {
((IntBuffer) dataout).put(out.asIntBuffer());
} else if (dataout instanceof FloatBuffer) {
((FloatBuffer) dataout).put(out.asFloatBuffer());
} else {
throw new RuntimeException("Should not reach here");
}
}
}
return (errno);
}
void isReadable(SelectionKey k) {
EventableChannel ec = (EventableChannel) k.attachment();
long b = ec.getBinding();
if (ec.isWatchOnly()) {
if (ec.isNotifyReadable()) eventCallback(b, EM_CONNECTION_NOTIFY_READABLE, null);
} else {
myReadBuffer.clear();
try {
ec.readInboundData(myReadBuffer);
myReadBuffer.flip();
if (myReadBuffer.limit() > 0) {
if (ProxyConnections != null) {
EventableChannel target = ProxyConnections.get(b);
if (target != null) {
ByteBuffer myWriteBuffer = ByteBuffer.allocate(myReadBuffer.limit());
myWriteBuffer.put(myReadBuffer);
myWriteBuffer.flip();
target.scheduleOutboundData(myWriteBuffer);
} else {
eventCallback(b, EM_CONNECTION_READ, myReadBuffer);
}
} else {
eventCallback(b, EM_CONNECTION_READ, myReadBuffer);
}
}
} catch (IOException e) {
UnboundConnections.add(b);
}
}
}
void isReadable(SelectionKey k) {
EventableChannel ec = (EventableChannel) k.attachment();
long b = ec.getBinding();
if (ec.isWatchOnly()) {
if (ec.isNotifyReadable()) eventCallback(b, EM_CONNECTION_NOTIFY_READABLE, null);
} else {
myReadBuffer.clear();
try {
ec.readInboundData(myReadBuffer);
myReadBuffer.flip();
if (myReadBuffer.limit() > 0) eventCallback(b, EM_CONNECTION_READ, myReadBuffer);
} catch (IOException e) {
UnboundConnections.add(b);
}
}
}
/*
* Create and size the buffers appropriately.
*/
private void createBuffers() {
/*
* We'll assume the buffer sizes are the same
* between client and server.
*/
SSLSession session = clientEngine.getSession();
int appBufferMax = session.getApplicationBufferSize();
int netBufferMax = session.getPacketBufferSize();
/*
* We'll make the input buffers a bit bigger than the max needed
* size, so that unwrap()s following a successful data transfer
* won't generate BUFFER_OVERFLOWS.
*
* We'll use a mix of direct and indirect ByteBuffers for
* tutorial purposes only. In reality, only use direct
* ByteBuffers when they give a clear performance enhancement.
*/
clientIn = ByteBuffer.allocate(appBufferMax + 50);
serverIn = ByteBuffer.allocate(appBufferMax + 50);
cTOs = ByteBuffer.allocateDirect(netBufferMax);
sTOc = ByteBuffer.allocateDirect(netBufferMax);
clientOut = ByteBuffer.wrap("Hi Server, I'm Client".getBytes());
serverOut = ByteBuffer.wrap("Hello Client, I'm Server".getBytes());
}
public EmReactor() {
Timers = new TreeMap<Long, ArrayList<Long>>();
Connections = new HashMap<Long, EventableChannel>();
Acceptors = new HashMap<Long, ServerSocketChannel>();
NewConnections = new ArrayList<Long>();
UnboundConnections = new ArrayList<Long>();
DetachedConnections = new ArrayList<EventableSocketChannel>();
BindingIndex = 0;
loopBreaker = new AtomicBoolean();
loopBreaker.set(false);
myReadBuffer =
ByteBuffer.allocate(
32 * 1024); // don't use a direct buffer. Ruby doesn't seem to like them.
timerQuantum = 98;
}
/*
* Simple check to make sure everything came across as expected.
*/
private static void checkTransfer(ByteBuffer a, ByteBuffer b) throws Exception {
a.flip();
b.flip();
if (!a.equals(b)) {
throw new Exception("Data didn't transfer cleanly");
} else {
log("\tData transferred cleanly");
}
a.position(a.limit());
b.position(b.limit());
a.limit(a.capacity());
b.limit(b.capacity());
}
/*
* Run the test.
*
* Sit in a tight loop, both engines calling wrap/unwrap regardless
* of whether data is available or not. We do this until both engines
* report back they are closed.
*
* The main loop handles all of the I/O phases of the SSLEngine's
* lifetime:
*
* initial handshaking
* application data transfer
* engine closing
*
* One could easily separate these phases into separate
* sections of code.
*/
private SSLSession runTest() throws Exception {
boolean dataDone = false;
createSSLEngines();
createBuffers();
SSLEngineResult clientResult; // results from client's last operation
SSLEngineResult serverResult; // results from server's last operation
/*
* Examining the SSLEngineResults could be much more involved,
* and may alter the overall flow of the application.
*
* For example, if we received a BUFFER_OVERFLOW when trying
* to write to the output pipe, we could reallocate a larger
* pipe, but instead we wait for the peer to drain it.
*/
while (!isEngineClosed(clientEngine) || !isEngineClosed(serverEngine)) {
log("================");
clientResult = clientEngine.wrap(clientOut, cTOs);
log("client wrap: ", clientResult);
runDelegatedTasks(clientResult, clientEngine);
serverResult = serverEngine.wrap(serverOut, sTOc);
log("server wrap: ", serverResult);
runDelegatedTasks(serverResult, serverEngine);
cTOs.flip();
sTOc.flip();
log("----");
clientResult = clientEngine.unwrap(sTOc, clientIn);
log("client unwrap: ", clientResult);
runDelegatedTasks(clientResult, clientEngine);
serverResult = serverEngine.unwrap(cTOs, serverIn);
log("server unwrap: ", serverResult);
runDelegatedTasks(serverResult, serverEngine);
cTOs.compact();
sTOc.compact();
/*
* After we've transfered all application data between the client
* and server, we close the clientEngine's outbound stream.
* This generates a close_notify handshake message, which the
* server engine receives and responds by closing itself.
*/
if (!dataDone
&& (clientOut.limit() == serverIn.position())
&& (serverOut.limit() == clientIn.position())) {
/*
* A sanity check to ensure we got what was sent.
*/
checkTransfer(serverOut, clientIn);
checkTransfer(clientOut, serverIn);
log("\tClosing clientEngine's *OUTBOUND*...");
clientEngine.closeOutbound();
dataDone = true;
}
}
return clientEngine.getSession();
}
private SSLSession runRehandshake() throws Exception {
log("\n\n==============================================");
log("Staring actual test.");
createSSLEngines();
createBuffers();
SSLEngineResult result;
log("Client's ClientHello");
checkResult(
clientEngine, clientEngine.wrap(clientOut, cTOs), HandshakeStatus.NEED_UNWRAP, false, true);
cTOs.flip();
checkResult(
serverEngine, serverEngine.unwrap(cTOs, serverIn), HandshakeStatus.NEED_WRAP, true, false);
cTOs.compact();
log("Server's ServerHello/ServerHelloDone");
checkResult(
serverEngine, serverEngine.wrap(serverOut, sTOc), HandshakeStatus.NEED_WRAP, false, true);
sTOc.flip();
checkResult(
clientEngine,
clientEngine.unwrap(sTOc, clientIn),
HandshakeStatus.NEED_UNWRAP,
true,
false);
sTOc.compact();
log("Server's CCS");
checkResult(
serverEngine, serverEngine.wrap(serverOut, sTOc), HandshakeStatus.NEED_WRAP, false, true);
sTOc.flip();
checkResult(
clientEngine,
clientEngine.unwrap(sTOc, clientIn),
HandshakeStatus.NEED_UNWRAP,
true,
false);
sTOc.compact();
log("Server's FINISHED");
checkResult(
serverEngine, serverEngine.wrap(serverOut, sTOc), HandshakeStatus.NEED_UNWRAP, false, true);
sTOc.flip();
checkResult(
clientEngine, clientEngine.unwrap(sTOc, clientIn), HandshakeStatus.NEED_WRAP, true, false);
sTOc.compact();
log("Client's CCS");
checkResult(
clientEngine, clientEngine.wrap(clientOut, cTOs), HandshakeStatus.NEED_WRAP, false, true);
cTOs.flip();
checkResult(
serverEngine,
serverEngine.unwrap(cTOs, serverIn),
HandshakeStatus.NEED_UNWRAP,
true,
false);
cTOs.compact();
log("Client's FINISHED should trigger FINISHED messages all around.");
checkResult(
clientEngine, clientEngine.wrap(clientOut, cTOs), HandshakeStatus.FINISHED, false, true);
cTOs.flip();
checkResult(
serverEngine, serverEngine.unwrap(cTOs, serverIn), HandshakeStatus.FINISHED, true, false);
cTOs.compact();
return clientEngine.getSession();
}
protected void engineUpdate(ByteBuffer input) {
update(param, input.array(), input.position(), input.remaining());
}
public void sendDatagram(long sig, byte[] data, int length, String recipAddress, int recipPort) {
sendDatagram(sig, ByteBuffer.wrap(data), recipAddress, recipPort);
}
public void sendData(long sig, byte[] data) throws IOException {
sendData(sig, ByteBuffer.wrap(data));
}
