From 2856928b57ec391ab51e4ade90034f414defc992 Mon Sep 17 00:00:00 2001
From: Geoffrey McRae <geoff@hostfission.com>
Date: Thu, 5 Aug 2021 22:35:22 +1000
Subject: [PATCH] [host] windows: implement KVMFR_FEATURE_SETCURSORPOS

---
 host/include/interface/platform.h    |  2 ++
 host/platform/Linux/src/platform.c   |  9 +++++++++
 host/platform/Windows/src/platform.c | 10 ++++++++++
 host/src/app.c                       | 23 ++++++++++++++++++++---
 4 files changed, 41 insertions(+), 3 deletions(-)

diff --git a/host/include/interface/platform.h b/host/include/interface/platform.h
index 03df37a3..294a654b 100644
--- a/host/include/interface/platform.h
+++ b/host/include/interface/platform.h
@@ -44,3 +44,5 @@ const char * os_getDataPath();
 void os_showMessage(const char * caption, const char * msg);
 
 bool os_blockScreensaver();
+bool os_hasSetCursorPos(void);
+void os_setCursorPos(int x, int y);
diff --git a/host/platform/Linux/src/platform.c b/host/platform/Linux/src/platform.c
index 96aa02ba..12c19891 100644
--- a/host/platform/Linux/src/platform.c
+++ b/host/platform/Linux/src/platform.c
@@ -86,3 +86,12 @@ void os_showMessage(const char * caption, const char * msg)
 {
   DEBUG_INFO("%s: %s", caption, msg);
 }
+
+bool os_hasSetCursorPos(void)
+{
+  return false;
+}
+
+void os_setCursorPos(int x, int y)
+{
+}
diff --git a/host/platform/Windows/src/platform.c b/host/platform/Windows/src/platform.c
index f3854b78..1f736c94 100644
--- a/host/platform/Windows/src/platform.c
+++ b/host/platform/Windows/src/platform.c
@@ -573,3 +573,13 @@ void os_showMessage(const char * caption, const char * msg)
 {
   MessageBoxA(NULL, msg, caption, MB_OK | MB_ICONINFORMATION);
 }
+
+bool os_hasSetCursorPos(void)
+{
+  return true;
+}
+
+void os_setCursorPos(int x, int y)
+{
+  SetCursorPos(x, y);
+}
diff --git a/host/src/app.c b/host/src/app.c
index 174ce1cf..93ca6668 100644
--- a/host/src/app.c
+++ b/host/src/app.c
@@ -147,6 +147,22 @@ static bool lgmpTimer(void * opaque)
     return false;
   }
 
+  uint8_t data[LGMP_MSGS_SIZE];
+  size_t size;
+  while((status = lgmpHostReadData(app.pointerQueue, &data, &size)) == LGMP_OK)
+  {
+    KVMFRMessage *msg = (KVMFRMessage *)data;
+    switch(msg->type)
+    {
+      case KVMFR_MESSAGE_SETCURSORPOS:
+      {
+        KVMFRSetCursorPos *sp = (KVMFRSetCursorPos *)msg;
+        os_setCursorPos(sp->x, sp->y);
+        break;
+      }
+    }
+  }
+
   return true;
 }
 
@@ -545,8 +561,9 @@ int app_main(int argc, char * argv[])
   DEBUG_INFO("KVMFR Version    : %u", KVMFR_VERSION);
 
   KVMFR udata = {
-    .magic   = KVMFR_MAGIC,
-    .version = KVMFR_VERSION,
+    .magic    = KVMFR_MAGIC,
+    .version  = KVMFR_VERSION,
+    .features = os_hasSetCursorPos() ? KVMFR_FEATURE_SETCURSORPOS : 0
   };
   strncpy(udata.hostver, BUILD_VERSION, sizeof(udata.hostver)-1);
 
@@ -661,7 +678,7 @@ int app_main(int argc, char * argv[])
 
   LG_LOCK_INIT(app.pointerLock);
 
-  if (!lgCreateTimer(100, lgmpTimer, NULL, &app.lgmpTimer))
+  if (!lgCreateTimer(10, lgmpTimer, NULL, &app.lgmpTimer))
   {
     DEBUG_ERROR("Failed to create the LGMP timer");