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Diffstat (limited to 'mesalib/src/mesa/drivers/dri/swrast')
-rw-r--r--mesalib/src/mesa/drivers/dri/swrast/swrast.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mesalib/src/mesa/drivers/dri/swrast/swrast.c b/mesalib/src/mesa/drivers/dri/swrast/swrast.c
index c062071b0..73dc5c4c0 100644
--- a/mesalib/src/mesa/drivers/dri/swrast/swrast.c
+++ b/mesalib/src/mesa/drivers/dri/swrast/swrast.c
@@ -406,8 +406,8 @@ swrast_map_renderbuffer(struct gl_context *ctx,
(char *) xrb->Base.Buffer,
dPriv->loaderPrivate);
- *out_map = xrb->Base.Buffer;
- *out_stride = stride;
+ *out_map = xrb->Base.Buffer + (h - 1) * stride;
+ *out_stride = -stride;
return;
}