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-rw-r--r--src/mesa/drivers/dri/savage/savage_xmesa.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/savage/savage_xmesa.c b/src/mesa/drivers/dri/savage/savage_xmesa.c
index c2eb8d10b17..98142889339 100644
--- a/src/mesa/drivers/dri/savage/savage_xmesa.c
+++ b/src/mesa/drivers/dri/savage/savage_xmesa.c
@@ -394,6 +394,9 @@ savageCreateContext( const __GLcontextModes *mesaVis,
ctx->Const.MaxLineWidthAA = 3.0;
ctx->Const.LineWidthGranularity = 1.0;
#endif
+ /* This is needed to get polygon offset right with reversed depth range
+ * (see savageCalcViewport). Not sure if it has any other side effects. */
+ ctx->MRD *= -1.0;
/* Dri stuff
*/