/**
* @param send_buf
* @param length
* @author Conor Send the process through the stream
*/
private void sendProcess(char[] send_buf, int length) {
if (mSocket == null) {
Log.e("streamdebug", "socket was null, could not send data.");
return;
}
Log.d(
"streamdebug",
String.format("Sending :: Send_buf: %S - Length: %S", ((int) (send_buf[1])), length));
// uncomment
try {
mSocket.getOut().write(send_buf, 0, length);
mSocket.getOut().flush();
// Log.d("streamdebug", String.format("Successfully sent :: Send_buf: %S - Length:
// %S", ((int) (send_buf[1])), length));
} catch (Exception e) {
Log.e("streamerror", "error sending");
lostConnection();
e.printStackTrace();
}
}
/** closes connection when we are done streaming */
private void closeSocket() {
if (mSocket != null) {
mSocket.close();
}
}
@Override
/**
* Begins streaming process with mobile device and monitors for errors, e.g. connection time outs
*/
public void run() {
android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_URGENT_DISPLAY);
Log.d("streamdebug", "trying to create socket buffer");
Thread socketThread =
new Thread() {
public void run() {
try {
mSocket = new SocketBuffer(mAddress, mPort);
} catch (Exception e) {
Log.d("streamdebug", e.getMessage());
mSocket = null;
}
}
};
socketThread.start();
try {
socketThread.join(5000); // socket timeout in construction
sleep(30);
} catch (Exception e) {
e.printStackTrace();
}
if (mSocket == null) {
lostConnection("Couldn't connect.");
return;
}
mLastReceiveTime = System.currentTimeMillis();
// Send VERSION, RESIZE, KEY
char[] first_buf = new char[Constants.CL_FIRST_MSG_SIZE];
first_buf[0] = Constants.MAGIC;
first_buf[1] = Constants.VERSION;
// Key
if (mKey != null && mKey.length() == Constants.KEY_LENGTH) {
first_buf[2] = mKey.charAt(0);
first_buf[3] = mKey.charAt(1);
first_buf[4] = mKey.charAt(2);
first_buf[5] = mKey.charAt(3);
first_buf[6] = mKey.charAt(4);
} else {
first_buf[2] = 0;
first_buf[3] = 0;
first_buf[4] = 0;
first_buf[5] = 0;
first_buf[6] = 0;
}
// Resolution
first_buf[7] = (char) (Constants.REAL_IMG_WIDTH / 128);
first_buf[8] = (char) (Constants.REAL_IMG_WIDTH % 128);
first_buf[9] = (char) (Constants.REAL_IMG_HEIGHT / 128);
first_buf[10] = (char) (Constants.REAL_IMG_HEIGHT % 128);
if (mLowRes) {
first_buf[11] = 1;
} else {
first_buf[11] = 0;
}
sendProcess(first_buf, Constants.CL_FIRST_MSG_SIZE);
mLastReceiveTime = System.currentTimeMillis(); // last time a complete frame has been received
long lastPingTime = System.currentTimeMillis();
boolean isDiff = false; // keeps track of whether the bitmap has changed since the last draw
while (mRun) {
try {
/* We're still listening; notify server */
if (System.currentTimeMillis() - lastPingTime > 1000) {
sendProcess(mRefrBuf, Constants.CL_MSG_SIZE);
lastPingTime = System.currentTimeMillis();
}
while (mSocket.getIn().ready()) {
int read =
mSocket.getIn().read(mRecvBuf, mRecvBufOffset, mRecvBufMsgLen - mRecvBufOffset);
mRecvBufOffset += read;
if (mRecvBufOffset == Constants.SE_MSG_HDR) {
char magic = mRecvBuf[0];
if (magic != Constants.MAGIC) {
Log.e("streamerror", "Bad magic number");
setRunning(false);
break;
}
int additional = mRecvBuf[2] * 128 + mRecvBuf[3];
mRecvBufMsgLen += (additional - Constants.SE_MSG_HDR);
}
if (mRecvBufOffset == mRecvBufMsgLen) {
int this_msg_len = mRecvBufMsgLen;
mRecvBufOffset = 0;
mRecvBufMsgLen = Constants.SE_MSG_HDR;
char type = mRecvBuf[1];
// Commented out to prevent crazy verbose logging
// Log.d("stream", "GOT TYPE: " + (int)(type));
if (type == Constants.SEEV_FLUSH) {
mLastReceiveTime = System.currentTimeMillis();
if (isDiff) {
Canvas canvas = mSurfaceHolder.lockCanvas();
synchronized (mSurfaceHolder) {
doDraw(canvas);
}
mSurfaceHolder.unlockCanvasAndPost(canvas);
isDiff = false;
}
} else if (type == Constants.SEEV_TILE
|| type == Constants.SEEV_SOLID_TILE
|| type == Constants.SEEV_RLE24_TILE
|| type == Constants.SEEV_RLE16_TILE
|| type == Constants.SEEV_RLE8_TILE) {
int xx = mRecvBuf[4] * 128 + mRecvBuf[5];
int yy = mRecvBuf[6] * 128 + mRecvBuf[7];
int sz = Constants.TILE_SIZE;
if (0 <= xx
&& xx + sz <= Constants.CUR_IMG_WIDTH
&& 0 <= yy
&& yy + sz <= Constants.CUR_IMG_HEIGHT) {
if (type == Constants.SEEV_TILE) {
for (int ii = 0; ii < sz; ++ii) {
for (int jj = 0; jj < sz; ++jj) {
mColorArray[ii + jj * sz] =
Color.rgb(
mRecvBuf[8 + 3 * (sz - jj - 1 + ii * sz) + 0] * 2,
mRecvBuf[8 + 3 * (sz - jj - 1 + ii * sz) + 1] * 2,
mRecvBuf[8 + 3 * (sz - jj - 1 + ii * sz) + 2] * 2);
}
}
} else if (type == Constants.SEEV_SOLID_TILE) {
Arrays.fill(
mColorArray, Color.rgb(mRecvBuf[8] * 2, mRecvBuf[9] * 2, mRecvBuf[10] * 2));
} else if (type == Constants.SEEV_RLE24_TILE
|| type == Constants.SEEV_RLE16_TILE
|| type == Constants.SEEV_RLE8_TILE) {
int rxx = 0;
int ryy = Constants.TILE_SIZE - 1;
int stride = this_msg_len;
if (type == Constants.SEEV_RLE24_TILE) {
stride = 4;
} else if (type == Constants.SEEV_RLE16_TILE) {
stride = 3;
} else if (type == Constants.SEEV_RLE8_TILE) {
stride = 2;
}
for (int ii = 8; ii < this_msg_len; ii += stride) {
int run = mRecvBuf[ii + 0];
int rr;
int gg;
int bb;
if (type == Constants.SEEV_RLE24_TILE) {
rr = mRecvBuf[ii + 1] * 2;
gg = mRecvBuf[ii + 2] * 2;
bb = mRecvBuf[ii + 3] * 2;
} else if (type == Constants.SEEV_RLE16_TILE) {
int clr0 = mRecvBuf[ii + 1];
int clr1 = mRecvBuf[ii + 2];
rr = ((clr0 & 0x007C) >> 2) * 8;
gg = (((clr0 & 0x0003) << 3) | ((clr1 & 0x0070) >> 4)) * 8;
bb = ((clr1 & 0x000F) >> 0) * 16;
} else {
int clr = mRecvBuf[ii + 1];
rr = ((clr & 0x0060) >> 5) * 64;
gg = ((clr & 0x0018) >> 3) * 64;
bb = ((clr & 0x0007) >> 0) * 32;
}
for (int jj = 0; jj < run; ++jj) {
mColorArray[rxx + ryy * sz] = Color.rgb(rr, gg, bb);
ryy -= 1;
if (ryy < 0) {
ryy = Constants.TILE_SIZE - 1;
rxx += 1;
}
}
}
}
int inv_yy = Constants.CUR_IMG_HEIGHT - yy - sz;
mImage.setPixels(mColorArray, 0, sz, xx, inv_yy, sz, sz);
isDiff = true; // bitmap has been changed
}
} else if (type == Constants.SEEV_TERMINATE) {
int terminateType = mRecvBuf[4];
if (terminateType == 1) {
lostConnection("Client and server versions don't match.");
} else if (terminateType == 2) {
lostConnection("Key is incorrect.");
} else {
lostConnection("Server closed connection.");
}
setRunning(false);
closeSocket();
return;
} else {
Log.e("streamerror", "Bad server event: " + (int) type);
}
}
}
} catch (Exception e) {
Log.e("streamerror", "Exception: " + e.getMessage() + e.toString());
lostConnection();
}
if (System.currentTimeMillis() - mLastReceiveTime > 10000) {
lostConnection("Connection timed out.");
}
}
if (mSocket != null) {
Log.d("streamdebug", "CLOSING");
mSendBuf[1] = Constants.CLEV_TERMINATE;
sendProcess(mSendBuf, Constants.CL_MSG_SIZE);
mSocket.close();
}
}
