ogl: only free use fences

This fixes some opengl error when not all fences are created.

Source/Plugins/Plugin_VideoOGL/Src/StreamBuffer.cpp

@@ -222,20 +222,15 @@ void StreamBuffer::Shutdown()
 {
 	switch(m_uploadtype) {
 	case MAP_AND_SYNC:
-		for(u32 i=0; i<SYNC_POINTS; i++)
-			glDeleteSync(fences[i]);
-		delete [] fences;
+		DeleteFences();
 		break;
-
 	case MAP_AND_RISK:
 	case MAP_AND_ORPHAN:
 	case BUFFERSUBDATA:
 	case BUFFERDATA:
 		break;
 	case PINNED_MEMORY:
-		for(u32 i=0; i<SYNC_POINTS; i++)
-			glDeleteSync(fences[i]);
-		delete [] fences;
+		DeleteFences();
 		glBindBuffer(m_buffertype, 0);
 		glFinish(); // ogl pipeline must be flushed, else this buffer can be in use
 		FreeAlignedMemory(pointer);
@@ -246,4 +241,13 @@ void StreamBuffer::Shutdown()
 	}
 }
 
+void StreamBuffer::DeleteFences()
+{
+	for(u32 i=SLOT(m_free_iterator)+1; i < SYNC_POINTS; i++)
+		glDeleteSync(fences[i]);
+	for(u32 i=0; i<SLOT(m_iterator); i++)
+		glDeleteSync(fences[i]);
+	delete [] fences;
+}
+
 }

Source/Plugins/Plugin_VideoOGL/Src/StreamBuffer.h

@@ -42,6 +42,7 @@ class StreamBuffer {
 private:
 	void Init();
 	void Shutdown();
+	void DeleteFences();
 
 	StreamType m_uploadtype;
 	u32 m_buffer;