public void run() {
// This function is a temporary solution. The final solution will
// used typed allocations where the message id is the type indicator.
int[] rbuf = new int[16];
mRS.nContextInitToClient(mRS.mContext);
while (mRun) {
rbuf[0] = 0;
int msg = mRS.nContextPeekMessage(mRS.mContext, mAuxData);
int size = mAuxData[1];
int subID = mAuxData[0];
if (msg == RS_MESSAGE_TO_CLIENT_USER) {
if ((size >> 2) >= rbuf.length) {
rbuf = new int[(size + 3) >> 2];
}
if (mRS.nContextGetUserMessage(mRS.mContext, rbuf) != RS_MESSAGE_TO_CLIENT_USER) {
throw new RSDriverException("Error processing message from RenderScript.");
}
if (mRS.mMessageCallback != null) {
mRS.mMessageCallback.mData = rbuf;
mRS.mMessageCallback.mID = subID;
mRS.mMessageCallback.mLength = size;
mRS.mMessageCallback.run();
} else {
throw new RSInvalidStateException(
"Received a message from the script with no message handler installed.");
}
continue;
}
if (msg == RS_MESSAGE_TO_CLIENT_ERROR) {
String e = mRS.nContextGetErrorMessage(mRS.mContext);
// Throw RSRuntimeException under the following conditions:
//
// 1) It is an unknown fatal error.
// 2) It is a debug fatal error, and we are not in a
// debug context.
// 3) It is a debug fatal error, and we do not have an
// error callback.
if (subID >= RS_ERROR_FATAL_UNKNOWN
|| (subID >= RS_ERROR_FATAL_DEBUG
&& (mRS.mContextType != ContextType.DEBUG || mRS.mErrorCallback == null))) {
throw new RSRuntimeException("Fatal error " + subID + ", details: " + e);
}
if (mRS.mErrorCallback != null) {
mRS.mErrorCallback.mErrorMessage = e;
mRS.mErrorCallback.mErrorNum = subID;
mRS.mErrorCallback.run();
} else {
android.util.Log.e(LOG_TAG, "non fatal RS error, " + e);
// Do not throw here. In these cases, we do not have
// a fatal error.
}
continue;
}
if (msg == RS_MESSAGE_TO_CLIENT_NEW_BUFFER) {
if (mRS.nContextGetUserMessage(mRS.mContext, rbuf) != RS_MESSAGE_TO_CLIENT_NEW_BUFFER) {
throw new RSDriverException("Error processing message from RenderScript.");
}
long bufferID = ((long) rbuf[1] << 32L) + ((long) rbuf[0] & 0xffffffffL);
Allocation.sendBufferNotification(bufferID);
continue;
}
// 2: teardown.
// But we want to avoid starving other threads during
// teardown by yielding until the next line in the destructor
// can execute to set mRun = false
try {
sleep(1, 0);
} catch (InterruptedException e) {
}
}
// Log.d(LOG_TAG, "MessageThread exiting.");
}
