X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=src%2Fgraphicsbuffer.cpp;fp=src%2Fgraphicsbuffer.cpp;h=d3911dbeba1263eff9161dfa390580e815716ef3;hb=59c3413bc2bd0e6a1ddbf4e67d9d7295de10f65c;hp=712caf82ae03cbffbeaec3668f9279005aac1bcf;hpb=666fa863baba6345fa5cf66711e9149b5d06b825;p=ipdf%2Fcode.git

diff --git a/src/graphicsbuffer.cpp b/src/graphicsbuffer.cpp
index 712caf8..d3911db 100644
--- a/src/graphicsbuffer.cpp
+++ b/src/graphicsbuffer.cpp
@@ -185,6 +185,10 @@ void* GraphicsBuffer::MapRange(int offset, int length, bool read, bool write, bo
 void GraphicsBuffer::UnMap()
 {
 	GLenum target = BufferTypeToGLType(m_buffer_type);
+	
+	// If we're not mapped, unmapping is a no-op.
+	if (!m_map_pointer)
+		return;
 
 	if (m_faking_map)
 	{