Add absolute mouse motion support

src/Input.h

@@ -26,7 +26,8 @@ typedef struct _NV_KEYBOARD_PACKET {
 } NV_KEYBOARD_PACKET, *PNV_KEYBOARD_PACKET;
 
 #define PACKET_TYPE_MOUSE_MOVE 0x08
-#define MOUSE_MOVE_MAGIC 0x06
+#define MOUSE_MOVE_ABS_MAGIC 0x05
+#define MOUSE_MOVE_REL_MAGIC 0x06
 typedef struct _NV_MOUSE_MOVE_PACKET {
     NV_INPUT_HEADER header;
     int magic;

src/InputStream.c

@@ -440,7 +440,7 @@ int LiSendMouseMoveEvent(short deltaX, short deltaY) {
 
     holder->packetLength = sizeof(NV_MOUSE_MOVE_PACKET);
     holder->packet.mouseMove.header.packetType = htonl(PACKET_TYPE_MOUSE_MOVE);
-    holder->packet.mouseMove.magic = MOUSE_MOVE_MAGIC;
+    holder->packet.mouseMove.magic = MOUSE_MOVE_REL_MAGIC;
     // On Gen 5 servers, the header code is incremented by one
     if (AppVersionQuad[0] >= 5) {
         holder->packet.mouseMove.magic++;
@@ -456,6 +456,39 @@ int LiSendMouseMoveEvent(short deltaX, short deltaY) {
     return err;
 }
 
+// Send a mouse position update to the streaming machine
+int LiSendMousePositionEvent(short x, short y) {
+    PPACKET_HOLDER holder;
+    int err;
+
+    if (!initialized) {
+        return -2;
+    }
+
+    // TODO: Figure out the exact version where this was added
+    if (AppVersionQuad[0] < 7) {
+        return -3;
+    }
+
+    holder = malloc(sizeof(*holder));
+    if (holder == NULL) {
+        return -1;
+    }
+
+    holder->packetLength = sizeof(NV_MOUSE_MOVE_PACKET);
+    holder->packet.mouseMove.header.packetType = htonl(PACKET_TYPE_MOUSE_MOVE);
+    holder->packet.mouseMove.magic = MOUSE_MOVE_ABS_MAGIC;
+    holder->packet.mouseMove.deltaX = htons(x);
+    holder->packet.mouseMove.deltaY = htons(y);
+
+    err = LbqOfferQueueItem(&packetQueue, holder, &holder->entry);
+    if (err != LBQ_SUCCESS) {
+        free(holder);
+    }
+
+    return err;
+}
+
 // Send a mouse button event to the streaming machine
 int LiSendMouseButtonEvent(char action, int button) {
     PPACKET_HOLDER holder;

src/Limelight.h

@@ -420,9 +420,12 @@ void LiInterruptConnection(void);
 // from the integer passed to the ConnListenerStageXXX callbacks
 const char* LiGetStageName(int stage);
 
-// This function queues a mouse move event to be sent to the remote server.
+// This function queues a relative mouse move event to be sent to the remote server.
 int LiSendMouseMoveEvent(short deltaX, short deltaY);
 
+// This function queues a mouse position update event to be sent to the remote server.
+int LiSendMousePositionEvent(short x, short y);
+
 // This function queues a mouse button event to be sent to the remote server.
 #define BUTTON_ACTION_PRESS 0x07
 #define BUTTON_ACTION_RELEASE 0x08