nouveau: fix nv30 line width

diff --git a/src/mesa/drivers/dri/nouveau/nv30_state.c b/src/mesa/drivers/dri/nouveau/nv30_state.c
index 9b0d7425c819e034920189b2ab2d4c1a1d48c1f5..55b64637814d991ef030001acee79d9f556d1b1b 100644 (file)
--- a/src/mesa/drivers/dri/nouveau/nv30_state.c
+++ b/src/mesa/drivers/dri/nouveau/nv30_state.c
@@ -559,7 +559,7 @@ static void nv30LineWidth(GLcontext *ctx, GLfloat width)
        nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
        GLubyte ubWidth;
 
-       CLAMPED_FLOAT_TO_UBYTE(ubWidth, width);
+       ubWidth = (GLubyte)(width * 8.0) & 0xFF;
 
        BEGIN_RING_CACHE(NvSub3D, NV30_TCL_PRIMITIVE_3D_LINE_WIDTH_SMOOTH, 1);
        OUT_RING_CACHE(ubWidth);