From efa520474a220bbb1516ac09e4d4f493e3b83a7a Mon Sep 17 00:00:00 2001
From: Baldur Karlsson <baldur@crytek.com>
Date: Wed, 25 Jun 2014 09:23:19 +0100
Subject: [PATCH] Minor optimisation to reduce recording of redundant chunks

---
 renderdoc/driver/gl/wrappers/gl_framebuffer_funcs.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/renderdoc/driver/gl/wrappers/gl_framebuffer_funcs.cpp b/renderdoc/driver/gl/wrappers/gl_framebuffer_funcs.cpp
index 8661d8b9f..66074f125 100644
--- a/renderdoc/driver/gl/wrappers/gl_framebuffer_funcs.cpp
+++ b/renderdoc/driver/gl/wrappers/gl_framebuffer_funcs.cpp
@@ -323,7 +323,15 @@ void WrappedOpenGL::glReadBuffer(GLenum mode)
 		if(m_State == WRITING_IDLE)
 		{
 			if(m_ReadFramebufferRecord)
+			{
+				Chunk *last = m_ReadFramebufferRecord->GetLastChunk();
+				if(last->GetChunkType() == READ_BUFFER)
+				{
+					delete last;
+					m_ReadFramebufferRecord->PopChunk();
+				}
 				m_ReadFramebufferRecord->AddChunk(scope.Get());
+			}
 			else
 				m_DeviceRecord->AddChunk(scope.Get());
 		}