From b02695274065df842eadbfc78e46b1c99b5f2ada Mon Sep 17 00:00:00 2001
From: jackchentwkh <anita999@ms12.hinet.net>
Date: Tue, 8 May 2018 18:56:24 +0800
Subject: [PATCH] Skip rendering when dwCount==0 or possible non-FVF push
 buffer

---
 src/CxbxKrnl/EmuD3D8/PushBuffer.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/CxbxKrnl/EmuD3D8/PushBuffer.cpp b/src/CxbxKrnl/EmuD3D8/PushBuffer.cpp
index 35f02ffcf..5280ef39d 100644
--- a/src/CxbxKrnl/EmuD3D8/PushBuffer.cpp
+++ b/src/CxbxKrnl/EmuD3D8/PushBuffer.cpp
@@ -300,13 +300,16 @@ extern void XTL::EmuExecutePushBufferRaw
             pVertexData = pdwPushData;
 			//move pushpuffer to the end of vertex data.
             pdwPushData += dwCount;
-
+			if (dwCount == 0) {
+				continue;
+			}
             // retrieve vertex shader
 			DWORD dwVertexShader = g_CurrentXboxVertexShaderHandle;
 
 			if (VshHandleIsVertexShader(dwVertexShader)) 
 			{
                 EmuWarning("Non-FVF Vertex Shaders not yet supported for PushBuffer emulation!");
+				continue;
             }
             if(dwVertexShader == 0)
             {