From 420bd0916487b3939db2a0097e7b50aa1d572276 Mon Sep 17 00:00:00 2001
From: Zack Middleton <zturtleman@gmail.com>
Date: Fri, 10 Jun 2016 06:56:53 -0500
Subject: [PATCH] OpenGL2: Remove loading (unused) glDrawBuffersARB

---
 code/renderercommon/qgl.h        | 23 -----------------------
 code/renderergl2/tr_extensions.c | 17 -----------------
 2 files changed, 40 deletions(-)

diff --git a/code/renderercommon/qgl.h b/code/renderercommon/qgl.h
index 971684fb..46ece094 100644
--- a/code/renderercommon/qgl.h
+++ b/code/renderercommon/qgl.h
@@ -693,29 +693,6 @@ extern void (APIENTRY * qglRenderbufferStorageMultisampleEXT)(GLenum target, GLs
 #define GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB         0x8E8F
 #endif
 
-// GL_ARB_draw_buffers
-extern void (APIENTRY * qglDrawBuffersARB)(GLsizei n, const GLenum *bufs);
-#ifndef GL_ARB_draw_buffers
-#define GL_ARB_draw_buffers
-#define GL_MAX_DRAW_BUFFERS_ARB                    0x8824
-#define GL_DRAW_BUFFER0_ARB                        0x8825
-#define GL_DRAW_BUFFER1_ARB                        0x8826
-#define GL_DRAW_BUFFER2_ARB                        0x8827
-#define GL_DRAW_BUFFER3_ARB                        0x8828
-#define GL_DRAW_BUFFER4_ARB                        0x8829
-#define GL_DRAW_BUFFER5_ARB                        0x882A
-#define GL_DRAW_BUFFER6_ARB                        0x882B
-#define GL_DRAW_BUFFER7_ARB                        0x882C
-#define GL_DRAW_BUFFER8_ARB                        0x882D
-#define GL_DRAW_BUFFER9_ARB                        0x882E
-#define GL_DRAW_BUFFER10_ARB                       0x882F
-#define GL_DRAW_BUFFER11_ARB                       0x8830
-#define GL_DRAW_BUFFER12_ARB                       0x8831
-#define GL_DRAW_BUFFER13_ARB                       0x8832
-#define GL_DRAW_BUFFER14_ARB                       0x8833
-#define GL_DRAW_BUFFER15_ARB                       0x8834
-#endif
-
 #ifndef GL_ARB_depth_clamp
 #define GL_ARB_depth_clamp
 #define GL_DEPTH_CLAMP				      0x864F
diff --git a/code/renderergl2/tr_extensions.c b/code/renderergl2/tr_extensions.c
index b33968d4..bb39b468 100644
--- a/code/renderergl2/tr_extensions.c
+++ b/code/renderergl2/tr_extensions.c
@@ -176,9 +176,6 @@ void (APIENTRY * qglBlitFramebufferEXT)(GLint srcX0, GLint srcY0, GLint srcX1, G
 void (APIENTRY * qglRenderbufferStorageMultisampleEXT)(GLenum target, GLsizei samples,
 	GLenum internalformat, GLsizei width, GLsizei height);
 
-// GL_ARB_draw_buffers
-void (APIENTRY * qglDrawBuffersARB)(GLsizei n, const GLenum *bufs);
-
 // GL_ARB_vertex_array_object
 void (APIENTRY * qglBindVertexArrayARB)(GLuint array);
 void (APIENTRY * qglDeleteVertexArraysARB)(GLsizei n, const GLuint *arrays);
@@ -692,20 +689,6 @@ void GLimp_InitExtraExtensions()
 		ri.Printf(PRINT_ALL, result[2], extension);
 	}
 
-	// GL_ARB_draw_buffers
-	extension = "GL_ARB_draw_buffers";
-	qglDrawBuffersARB = NULL;
-	if( GLimp_HaveExtension( extension ) )
-	{
-		qglDrawBuffersARB = (void *) SDL_GL_GetProcAddress("glDrawBuffersARB");
-
-		ri.Printf(PRINT_ALL, result[1], extension);
-	}
-	else
-	{
-		ri.Printf(PRINT_ALL, result[2], extension);
-	}
-
 	// GL_ARB_depth_clamp
 	extension = "GL_ARB_depth_clamp";
 	glRefConfig.depthClamp = qfalse;