[Mesa-dev] [PATCH] vl/zscan: fix "Fix trivial sign compare warnings"

[Christian König]

From: Christian König <christian.koenig at amd.com>

The variable actually needs to be signed, otherwise converting it to a
float doesn't work as expected.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=98914
Signed-off-by: Christian König <christian.koenig at amd.com>
---
 src/gallium/auxiliary/vl/vl_zscan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/auxiliary/vl/vl_zscan.c b/src/gallium/auxiliary/vl/vl_zscan.c
index ef05af4..24d6452 100644
--- a/src/gallium/auxiliary/vl/vl_zscan.c
+++ b/src/gallium/auxiliary/vl/vl_zscan.c
@@ -152,7 +152,7 @@ create_vert_shader(struct vl_zscan *zscan)
    for (i = 0; i < zscan->num_channels; ++i) {
       ureg_ADD(shader, ureg_writemask(tmp, TGSI_WRITEMASK_X), ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_Y),
                ureg_imm1f(shader, 1.0f / (zscan->blocks_per_line * VL_BLOCK_WIDTH)
-                * (i - (signed)zscan->num_channels / 2)));
+                * ((signed)i - (signed)zscan->num_channels / 2)));
 
       ureg_MAD(shader, ureg_writemask(o_vtex[i], TGSI_WRITEMASK_X), vrect,
                ureg_imm1f(shader, 1.0f / zscan->blocks_per_line), ureg_src(tmp));
-- 
2.7.4