moonlight-stream/moonlight-common-c
1
0
Fork 0
mirror of https://github.com/moonlight-stream/moonlight-common-c.git synced 2026-04-02 22:06:10 +00:00
Code Issues Packages Projects Releases Wiki Activity

Throttle mouse/controller message rate in the input send thread

Browse Source 
This avoids clients from all having to handle this themselves independently.
This commit is contained in:
Cameron Gutman
2023-02-14 21:24:13 -06:00
parent 95e3e26d12
commit 830187e4da
1 changed files with 38 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
src/InputStream.c
View File

@@ -28,6 +28,13 @@ static float absCurrentPosY;
// Matches Win32 WHEEL_DELTA definition
#define LI_WHEEL_DELTA 120
// If we try to send more than one gamepad or mouse motion event
// per millisecond, we'll wait a little bit to try to batch with
// the next one. This batching wait paradoxically _decreases_
// effective input latency by avoiding packet queuing in ENet.
#define CONTROLLER_BATCHING_INTERVAL_MS 1
#define MOUSE_BATCHING_INTERVAL_MS 1
// Contains input stream packets
typedef struct _PACKET_HOLDER {
LINKED_BLOCKING_QUEUE_ENTRY entry;
@@ -263,6 +270,9 @@ static void inputSendThreadProc(void* context) {
relMouseMagicLE = LE32(MOUSE_MOVE_REL_MAGIC);
}
uint64_t lastControllerPacketTime = 0;
uint64_t lastMousePacketTime = 0;
while (!PltIsThreadInterrupted(&inputSendThread)) {
err = LbqWaitForQueueElement(&packetQueue, (void**)&holder);
if (err != LBQ_SUCCESS) {
@@ -273,6 +283,13 @@ static void inputSendThreadProc(void* context) {
if (holder->packet.header.magic == multiControllerMagicLE) {
PPACKET_HOLDER controllerBatchHolder;
PNV_MULTI_CONTROLLER_PACKET origPkt;
uint64_t now = PltGetMillis();
// Delay for batching if required
if (now < lastControllerPacketTime + CONTROLLER_BATCHING_INTERVAL_MS) {
PltSleepMs(lastControllerPacketTime + CONTROLLER_BATCHING_INTERVAL_MS - now);
now = PltGetMillis();
}
origPkt = &holder->packet.multiController;
for (;;) {
@@ -317,12 +334,21 @@ static void inputSendThreadProc(void* context) {
// Free the batched packet holder
freePacketHolder(controllerBatchHolder);
}
lastControllerPacketTime = now;
}
// If it's a relative mouse move packet, we can also do batching
else if (holder->packet.header.magic == relMouseMagicLE) {
PPACKET_HOLDER mouseBatchHolder;
int totalDeltaX = (short)BE16(holder->packet.mouseMoveRel.deltaX);
int totalDeltaY = (short)BE16(holder->packet.mouseMoveRel.deltaY);
uint64_t now = PltGetMillis();
// Delay for batching if required
if (now < lastMousePacketTime + MOUSE_BATCHING_INTERVAL_MS) {
PltSleepMs(lastMousePacketTime + MOUSE_BATCHING_INTERVAL_MS - now);
now = PltGetMillis();
}
for (;;) {
int partialDeltaX;
@@ -362,12 +388,22 @@ static void inputSendThreadProc(void* context) {
freePacketHolder(mouseBatchHolder);
}
lastMousePacketTime = now;
// Update the original packet
holder->packet.mouseMoveRel.deltaX = BE16((short)totalDeltaX);
holder->packet.mouseMoveRel.deltaY = BE16((short)totalDeltaY);
}
// If it's an absolute mouse move packet, we should only send the latest
else if (holder->packet.header.magic == LE32(MOUSE_MOVE_ABS_MAGIC)) {
uint64_t now = PltGetMillis();
// Delay for batching if required
if (now < lastMousePacketTime + MOUSE_BATCHING_INTERVAL_MS) {
PltSleepMs(lastMousePacketTime + MOUSE_BATCHING_INTERVAL_MS - now);
now = PltGetMillis();
}
for (;;) {
PPACKET_HOLDER mouseBatchHolder;
@@ -390,6 +426,8 @@ static void inputSendThreadProc(void* context) {
freePacketHolder(holder);
holder = mouseBatchHolder;
}
lastMousePacketTime = now;
}
// If it's a UTF-8 text packet, we may need to split it into a several packets to send
else if (holder->packet.header.magic == LE32(UTF8_TEXT_EVENT_MAGIC)) {