X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fapi_loopback.c;h=8b63d9c0e95e83ff0d0a9a8b0e304a275cd95403;hb=34953f8907fddd0d2b27d276580a1d3223047987;hp=a7fd82c531fcaaba51d8737d3fddc8a177038473;hpb=a6fa74e6bb65f852ad1608f43dd0731e854ea42f;p=mesa.git

diff --git a/src/mesa/main/api_loopback.c b/src/mesa/main/api_loopback.c
index a7fd82c531f..8b63d9c0e95 100644
--- a/src/mesa/main/api_loopback.c
+++ b/src/mesa/main/api_loopback.c
@@ -629,7 +629,10 @@ _mesa_Vertex2sv( const GLshort *v )
 void GLAPIENTRY
 _mesa_Vertex3dv( const GLdouble *v )
 {
-   VERTEX3( (GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2] );
+   if (v[2] == 0.0)
+      VERTEX2( (GLfloat) v[0], (GLfloat) v[1] );
+   else
+      VERTEX3( (GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2] );
 }
 
 void GLAPIENTRY