From: Topi Pohjolainen <topi.pohjolainen@intel.com>
Date: Sun, 29 Mar 2015 18:52:02 +0000 (+0300)
Subject: i965/blorp: Prepare drawing rectangle for flipped coordinates
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=13670e8bade296c5c5846dc08615563ad51685e4;p=mesa.git

i965/blorp: Prepare drawing rectangle for flipped coordinates

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
---

diff --git a/src/mesa/drivers/dri/i965/gen6_blorp.cpp b/src/mesa/drivers/dri/i965/gen6_blorp.cpp
index ed08898d957..b6a3d78d849 100644
--- a/src/mesa/drivers/dri/i965/gen6_blorp.cpp
+++ b/src/mesa/drivers/dri/i965/gen6_blorp.cpp
@@ -950,8 +950,8 @@ gen6_blorp_emit_drawing_rectangle(struct brw_context *brw,
    BEGIN_BATCH(4);
    OUT_BATCH(_3DSTATE_DRAWING_RECTANGLE << 16 | (4 - 2));
    OUT_BATCH(0);
-   OUT_BATCH(((params->x1 - 1) & 0xffff) |
-             ((params->y1 - 1) << 16));
+   OUT_BATCH(((MAX2(params->x1, params->x0) - 1) & 0xffff) |
+             ((MAX2(params->y1, params->y0) - 1) << 16));
    OUT_BATCH(0);
    ADVANCE_BATCH();
 }