remove DitherValues

[mesa.git] / src / mesa / drivers / x11 / xm_tri.c

diff --git a/src/mesa/drivers/x11/xm_tri.c b/src/mesa/drivers/x11/xm_tri.c
index 868bca4937f753766a91a01a9092645eb34eb10b..f018a6acacbaeb6b562ebe97fad9ddaed8c3e4c0 100644 (file)
--- a/src/mesa/drivers/x11/xm_tri.c
+++ b/src/mesa/drivers/x11/xm_tri.c
@@ -1313,6 +1313,8 @@ static swrast_tri_func get_triangle_func( GLcontext *ctx )
    triFuncName = NULL;
 #endif
 
+   if ((ctx->Color._DrawDestMask & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)) ==0)
+      return (swrast_tri_func) NULL;
    if (ctx->RenderMode != GL_RENDER)  return (swrast_tri_func) NULL;
    if (ctx->Polygon.SmoothFlag)       return (swrast_tri_func) NULL;
    if (ctx->Texture._EnabledUnits)    return (swrast_tri_func) NULL;