int OctreeQuery::getBroadcastData(unsigned char* destinationBuffer) {
unsigned char* bufferStart = destinationBuffer;
// back a boolean (cut to 1 byte) to designate if this query uses the sent view frustum
memcpy(destinationBuffer, &_usesFrustum, sizeof(_usesFrustum));
destinationBuffer += sizeof(_usesFrustum);
if (_usesFrustum) {
// TODO: DRY this up to a shared method
// that can pack any type given the number of bytes
// and return the number of bytes to push the pointer
// camera details
memcpy(destinationBuffer, &_cameraPosition, sizeof(_cameraPosition));
destinationBuffer += sizeof(_cameraPosition);
destinationBuffer += packOrientationQuatToBytes(destinationBuffer, _cameraOrientation);
destinationBuffer += packFloatAngleToTwoByte(destinationBuffer, _cameraFov);
destinationBuffer += packFloatRatioToTwoByte(destinationBuffer, _cameraAspectRatio);
destinationBuffer += packClipValueToTwoByte(destinationBuffer, _cameraNearClip);
destinationBuffer += packClipValueToTwoByte(destinationBuffer, _cameraFarClip);
memcpy(destinationBuffer, &_cameraEyeOffsetPosition, sizeof(_cameraEyeOffsetPosition));
destinationBuffer += sizeof(_cameraEyeOffsetPosition);
}
// desired Max Octree PPS
memcpy(destinationBuffer, &_maxQueryPPS, sizeof(_maxQueryPPS));
destinationBuffer += sizeof(_maxQueryPPS);
// desired voxelSizeScale
memcpy(destinationBuffer, &_octreeElementSizeScale, sizeof(_octreeElementSizeScale));
destinationBuffer += sizeof(_octreeElementSizeScale);
// desired boundaryLevelAdjust
memcpy(destinationBuffer, &_boundaryLevelAdjust, sizeof(_boundaryLevelAdjust));
destinationBuffer += sizeof(_boundaryLevelAdjust);
memcpy(destinationBuffer, &_cameraCenterRadius, sizeof(_cameraCenterRadius));
destinationBuffer += sizeof(_cameraCenterRadius);
// create a QByteArray that holds the binary representation of the JSON parameters
QByteArray binaryParametersDocument;
if (!_jsonParameters.isEmpty()) {
binaryParametersDocument = QJsonDocument(_jsonParameters).toBinaryData();
}
// write the size of the JSON parameters
uint16_t binaryParametersBytes = binaryParametersDocument.size();
memcpy(destinationBuffer, &binaryParametersBytes, sizeof(binaryParametersBytes));
destinationBuffer += sizeof(binaryParametersBytes);
// pack the binary JSON parameters
// NOTE: for now we assume that the filters that will be set are all small enough that we will not have a packet > MTU
if (binaryParametersDocument.size() > 0) {
memcpy(destinationBuffer, binaryParametersDocument.data(), binaryParametersBytes);
destinationBuffer += binaryParametersBytes;
}
return destinationBuffer - bufferStart;
}
int OctreeQuery::getBroadcastData(unsigned char* destinationBuffer) {
unsigned char* bufferStart = destinationBuffer;
// TODO: DRY this up to a shared method
// that can pack any type given the number of bytes
// and return the number of bytes to push the pointer
// camera details
memcpy(destinationBuffer, &_cameraPosition, sizeof(_cameraPosition));
destinationBuffer += sizeof(_cameraPosition);
destinationBuffer += packOrientationQuatToBytes(destinationBuffer, _cameraOrientation);
destinationBuffer += packFloatAngleToTwoByte(destinationBuffer, _cameraFov);
destinationBuffer += packFloatRatioToTwoByte(destinationBuffer, _cameraAspectRatio);
destinationBuffer += packClipValueToTwoByte(destinationBuffer, _cameraNearClip);
destinationBuffer += packClipValueToTwoByte(destinationBuffer, _cameraFarClip);
memcpy(destinationBuffer, &_cameraEyeOffsetPosition, sizeof(_cameraEyeOffsetPosition));
destinationBuffer += sizeof(_cameraEyeOffsetPosition);
// bitMask of less than byte wide items
unsigned char bitItems = 0;
// NOTE: we need to keep these here for new clients to talk to old servers. After we know that the clients and
// servers and clients have all been updated we could remove these bits. New servers will always force these
// features on old clients even if they don't ask for them. (which old clients will properly handle). New clients
// will always ask for these so that old servers will use these features.
setAtBit(bitItems, WANT_LOW_RES_MOVING_BIT);
setAtBit(bitItems, WANT_COLOR_AT_BIT);
setAtBit(bitItems, WANT_DELTA_AT_BIT);
setAtBit(bitItems, WANT_COMPRESSION);
*destinationBuffer++ = bitItems;
// desired Max Octree PPS
memcpy(destinationBuffer, &_maxQueryPPS, sizeof(_maxQueryPPS));
destinationBuffer += sizeof(_maxQueryPPS);
// desired voxelSizeScale
memcpy(destinationBuffer, &_octreeElementSizeScale, sizeof(_octreeElementSizeScale));
destinationBuffer += sizeof(_octreeElementSizeScale);
// desired boundaryLevelAdjust
memcpy(destinationBuffer, &_boundaryLevelAdjust, sizeof(_boundaryLevelAdjust));
destinationBuffer += sizeof(_boundaryLevelAdjust);
memcpy(destinationBuffer, &_cameraCenterRadius, sizeof(_cameraCenterRadius));
destinationBuffer += sizeof(_cameraCenterRadius);
return destinationBuffer - bufferStart;
}
int OctreeQuery::getBroadcastData(unsigned char* destinationBuffer) {
unsigned char* bufferStart = destinationBuffer;
// TODO: DRY this up to a shared method
// that can pack any type given the number of bytes
// and return the number of bytes to push the pointer
// camera details
memcpy(destinationBuffer, &_cameraPosition, sizeof(_cameraPosition));
destinationBuffer += sizeof(_cameraPosition);
destinationBuffer += packOrientationQuatToBytes(destinationBuffer, _cameraOrientation);
destinationBuffer += packFloatAngleToTwoByte(destinationBuffer, _cameraFov);
destinationBuffer += packFloatRatioToTwoByte(destinationBuffer, _cameraAspectRatio);
destinationBuffer += packClipValueToTwoByte(destinationBuffer, _cameraNearClip);
destinationBuffer += packClipValueToTwoByte(destinationBuffer, _cameraFarClip);
memcpy(destinationBuffer, &_cameraEyeOffsetPosition, sizeof(_cameraEyeOffsetPosition));
destinationBuffer += sizeof(_cameraEyeOffsetPosition);
// bitMask of less than byte wide items
unsigned char bitItems = 0;
if (_wantLowResMoving) { setAtBit(bitItems, WANT_LOW_RES_MOVING_BIT); }
if (_wantColor) { setAtBit(bitItems, WANT_COLOR_AT_BIT); }
if (_wantDelta) { setAtBit(bitItems, WANT_DELTA_AT_BIT); }
if (_wantOcclusionCulling) { setAtBit(bitItems, WANT_OCCLUSION_CULLING_BIT); }
if (_wantCompression) { setAtBit(bitItems, WANT_COMPRESSION); }
*destinationBuffer++ = bitItems;
// desired Max Octree PPS
memcpy(destinationBuffer, &_maxOctreePPS, sizeof(_maxOctreePPS));
destinationBuffer += sizeof(_maxOctreePPS);
// desired voxelSizeScale
memcpy(destinationBuffer, &_octreeElementSizeScale, sizeof(_octreeElementSizeScale));
destinationBuffer += sizeof(_octreeElementSizeScale);
// desired boundaryLevelAdjust
memcpy(destinationBuffer, &_boundaryLevelAdjust, sizeof(_boundaryLevelAdjust));
destinationBuffer += sizeof(_boundaryLevelAdjust);
return destinationBuffer - bufferStart;
}
int ConicalViewFrustum::serialize(unsigned char* destinationBuffer) const {
const unsigned char* startPosition = destinationBuffer;
memcpy(destinationBuffer, &_position, sizeof(_position));
destinationBuffer += sizeof(_position);
memcpy(destinationBuffer, &_direction, sizeof(_direction));
destinationBuffer += sizeof(_direction);
destinationBuffer += packFloatAngleToTwoByte(destinationBuffer, _angle);
destinationBuffer += packClipValueToTwoByte(destinationBuffer, _farClip);
memcpy(destinationBuffer, &_radius, sizeof(_radius));
destinationBuffer += sizeof(_radius);
return destinationBuffer - startPosition;
}
