From 73e8bc41cd0a9f109dac02838ceee0e7ce58d504 Mon Sep 17 00:00:00 2001
From: Geoffrey McRae <geoff@hostfission.com>
Date: Thu, 9 Jan 2020 16:15:04 +1100
Subject: [PATCH] [c-host] don't overflow the pointerMemory array

---
 LGMP                          | 2 +-
 c-host/src/app.c              | 8 +++-----
 common/include/common/KVMFR.h | 4 ++--
 3 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/LGMP b/LGMP
index 7e02dfd8..f941a676 160000
--- a/LGMP
+++ b/LGMP
@@ -1 +1 @@
-Subproject commit 7e02dfd8ec53385cab76c819ab33a90911c6a271
+Subproject commit f941a676c87de15e75f7d62c77ba0a7dca314158
diff --git a/c-host/src/app.c b/c-host/src/app.c
index 6df1cf7a..c836b25e 100644
--- a/c-host/src/app.c
+++ b/c-host/src/app.c
@@ -39,10 +39,8 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 #define ALIGN_DN(x) ((uintptr_t)(x) & ~0x7F)
 #define ALIGN_UP(x) ALIGN_DN(x + 0x7F)
 
-#define LGMP_Q_POINTER     1
 #define LGMP_Q_POINTER_LEN 10
-#define LGMP_Q_FRAME      2
-#define LGMP_Q_FRAME_LEN  2
+#define LGMP_Q_FRAME_LEN   2
 
 #define MAX_POINTER_SIZE (sizeof(KVMFRCursor) + (128 * 128 * 4))
 
@@ -301,7 +299,7 @@ void capturePostPointerBuffer(CapturePointer pointer)
     return;
   }
 
-  if (app.pointerIndex++ == LGMP_Q_POINTER_LEN)
+  if (++app.pointerIndex == LGMP_Q_POINTER_LEN)
     app.pointerIndex = 0;
 }
 
@@ -390,7 +388,7 @@ int app_main(int argc, char * argv[])
     }
   }
 
-  DEBUG_INFO("Max Pointer Size : %u KiB", (unsigned int)MAX_POINTER_SIZE);
+  DEBUG_INFO("Max Pointer Size : %u KiB", (unsigned int)MAX_POINTER_SIZE / 1024);
   DEBUG_INFO("Max Frame Size   : %u MiB", (unsigned int)(app.maxFrameSize / 1048576LL));
 
   CaptureInterface * iface = NULL;
diff --git a/common/include/common/KVMFR.h b/common/include/common/KVMFR.h
index b6b52d81..3b39420a 100644
--- a/common/include/common/KVMFR.h
+++ b/common/include/common/KVMFR.h
@@ -20,8 +20,8 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 
 #include <stdint.h>
 
-#define KVMFR_HEADER_MAGIC   "[[KVMFR]]"
-#define KVMFR_HEADER_VERSION 9
+#define LGMP_Q_POINTER     1
+#define LGMP_Q_FRAME       2
 
 typedef enum FrameType
 {