From 8f0629932d4849550253d248473ca9c68189723b Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@zdoom.fake>
Date: Sat, 6 Aug 2016 14:29:21 +0200
Subject: [PATCH] - ImmRenderBuffer is not needed anymore.

---
 src/gl/data/gl_vertexbuffer.cpp | 34 ---------------------------------
 src/gl/data/gl_vertexbuffer.h   |  2 --
 2 files changed, 36 deletions(-)

diff --git a/src/gl/data/gl_vertexbuffer.cpp b/src/gl/data/gl_vertexbuffer.cpp
index dd3854596..fc17f7ff8 100644
--- a/src/gl/data/gl_vertexbuffer.cpp
+++ b/src/gl/data/gl_vertexbuffer.cpp
@@ -141,40 +141,6 @@ void FFlatVertexBuffer::BindVBO()
 	}
 }
 
-//==========================================================================
-//
-// immediate mode fallback for drivers without GL_ARB_buffer_storage
-//
-// No single core method is performant enough  to handle this adequately
-// so we have to resort to immediate mode instead...
-//
-//==========================================================================
-
-void FFlatVertexBuffer::ImmRenderBuffer(unsigned int primtype, unsigned int offset, unsigned int count)
-{
-	// this will only get called if we can't acquire a persistently mapped buffer.
-#ifndef CORE_PROFILE
-	glBegin(primtype);
-	if (gl.glslversion > 0)
-	{
-		for (unsigned int i = 0; i < count; i++)
-		{
-			glVertexAttrib2fv(VATTR_TEXCOORD, &map[offset + i].u);
-			glVertexAttrib3fv(VATTR_VERTEX, &map[offset + i].x);
-		}
-	}
-	else	// no shader means no vertex attributes, so use the old stuff instead.
-	{
-		for (unsigned int i = 0; i < count; i++)
-		{
-			glTexCoord2fv(&map[offset + i].u);
-			glVertex3fv(&map[offset + i].x);
-		}
-	}
-	glEnd();
-#endif
-}
-
 //==========================================================================
 //
 // Initialize a single vertex
diff --git a/src/gl/data/gl_vertexbuffer.h b/src/gl/data/gl_vertexbuffer.h
index edb38733a..0223c5791 100644
--- a/src/gl/data/gl_vertexbuffer.h
+++ b/src/gl/data/gl_vertexbuffer.h
@@ -54,8 +54,6 @@ class FFlatVertexBuffer : public FVertexBuffer
 	static const unsigned int BUFFER_SIZE = 2000000;
 	static const unsigned int BUFFER_SIZE_TO_USE = 1999500;
 
-	void ImmRenderBuffer(unsigned int primtype, unsigned int offset, unsigned int count);
-
 public:
 	TArray<FFlatVertex> vbo_shadowdata;	// this is kept around for updating the actual (non-readable) buffer and as stand-in for pre GL 4.x