From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 11 Aug 2021 15:02:28 +0000 (+0300)
Subject: Always use ARB_map_buffer_range for mapping buffers
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=4d146fba83f1ee7b8bd2249648a66db51857730f;p=libs%2Fgl.git

Always use ARB_map_buffer_range for mapping buffers
---

diff --git a/source/core/buffer.cpp b/source/core/buffer.cpp
index 5b3339a1..013a136a 100644
--- a/source/core/buffer.cpp
+++ b/source/core/buffer.cpp
@@ -148,26 +148,16 @@ BufferRange *Buffer::create_range(unsigned s, unsigned o)
 
 void *Buffer::map()
 {
+	static Require _req(ARB_map_buffer_range);
+
 	allocate();
-	if(ARB_map_buffer_range)
-	{
-		if(ARB_direct_state_access)
-			return glMapNamedBufferRange(id, 0, size, GL_MAP_READ_BIT|GL_MAP_WRITE_BIT);
-		else
-		{
-			BindRestore _bind(this, type);
-			return glMapBufferRange(type, 0, size, GL_MAP_READ_BIT|GL_MAP_WRITE_BIT);
-		}
-	}
-	else if(ARB_direct_state_access)
-		return glMapNamedBuffer(id, GL_READ_WRITE);
-	else if(OES_mapbuffer)
+	if(ARB_direct_state_access)
+		return glMapNamedBufferRange(id, 0, size, GL_MAP_READ_BIT|GL_MAP_WRITE_BIT);
+	else
 	{
 		BindRestore _bind(this, type);
-		return glMapBuffer(type, GL_READ_WRITE);
+		return glMapBufferRange(type, 0, size, GL_MAP_READ_BIT|GL_MAP_WRITE_BIT);
 	}
-	else
-		throw invalid_operation("Buffer::map");
 }
 
 bool Buffer::unmap()