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path: root/src/mesa/drivers/x11/xm_line.c
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Diffstat (limited to 'src/mesa/drivers/x11/xm_line.c')
-rw-r--r--src/mesa/drivers/x11/xm_line.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mesa/drivers/x11/xm_line.c b/src/mesa/drivers/x11/xm_line.c
index 342528dbefa..a5352d61474 100644
--- a/src/mesa/drivers/x11/xm_line.c
+++ b/src/mesa/drivers/x11/xm_line.c
@@ -492,6 +492,8 @@ static swrast_line_func get_line_func( GLcontext *ctx )
SWcontext *swrast = SWRAST_CONTEXT(ctx);
int depth = GET_VISUAL_DEPTH(xmesa->xm_visual);
+ if ((ctx->Color._DrawDestMask & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)) ==0)
+ return (swrast_line_func) NULL;
if (ctx->RenderMode != GL_RENDER) return (swrast_line_func) NULL;
if (ctx->Line.SmoothFlag) return (swrast_line_func) NULL;
if (ctx->Texture._EnabledUnits) return (swrast_line_func) NULL;