Mesa (master): llvmpipe: avoid left-shifting a negative number.
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Wed Oct 9 20:21:06 UTC 2019
Module: Mesa
Branch: master
Commit: e0d89b90d430e44e08210937558ccbc7701da4ae
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=e0d89b90d430e44e08210937558ccbc7701da4ae
Author: Maya Rashish <coypu at sdf.org>
Date: Tue Sep 3 13:04:15 2019 +0300
llvmpipe: avoid left-shifting a negative number.
Reviewed-by: Matt Turner <mattst88 at gmail.com>
Signed-off-by: Maya Rashish <coypu at sdf.org>
---
src/gallium/drivers/llvmpipe/lp_setup_line.c | 4 ++--
src/gallium/drivers/llvmpipe/lp_setup_point.c | 4 ++--
src/gallium/drivers/llvmpipe/lp_setup_tri.c | 4 ++--
3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/src/gallium/drivers/llvmpipe/lp_setup_line.c b/src/gallium/drivers/llvmpipe/lp_setup_line.c
index c1d8237a8ac..5e26b1e9ffc 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup_line.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup_line.c
@@ -724,7 +724,7 @@ try_setup_line( struct lp_setup_context *setup,
struct lp_rast_plane *plane_s = &plane[4];
if (s_planes[0]) {
- plane_s->dcdx = -1 << 8;
+ plane_s->dcdx = ~0U << 8;
plane_s->dcdy = 0;
plane_s->c = (1-scissor->x0) << 8;
plane_s->eo = 1 << 8;
@@ -746,7 +746,7 @@ try_setup_line( struct lp_setup_context *setup,
}
if (s_planes[3]) {
plane_s->dcdx = 0;
- plane_s->dcdy = -1 << 8;
+ plane_s->dcdy = ~0U << 8;
plane_s->c = (scissor->y1+1) << 8;
plane_s->eo = 0;
plane_s++;
diff --git a/src/gallium/drivers/llvmpipe/lp_setup_point.c b/src/gallium/drivers/llvmpipe/lp_setup_point.c
index fc1d5ef6e36..0c4b1b758f9 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup_point.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup_point.c
@@ -491,7 +491,7 @@ try_setup_point( struct lp_setup_context *setup,
{
struct lp_rast_plane *plane = GET_PLANES(point);
- plane[0].dcdx = -1 << 8;
+ plane[0].dcdx = ~0U << 8;
plane[0].dcdy = 0;
plane[0].c = (1-bbox.x0) << 8;
plane[0].eo = 1 << 8;
@@ -507,7 +507,7 @@ try_setup_point( struct lp_setup_context *setup,
plane[2].eo = 1 << 8;
plane[3].dcdx = 0;
- plane[3].dcdy = -1 << 8;
+ plane[3].dcdy = ~0U << 8;
plane[3].c = (bbox.y1+1) << 8;
plane[3].eo = 0;
}
diff --git a/src/gallium/drivers/llvmpipe/lp_setup_tri.c b/src/gallium/drivers/llvmpipe/lp_setup_tri.c
index 1852ec05d56..0fa3443d519 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup_tri.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup_tri.c
@@ -687,7 +687,7 @@ do_triangle_ccw(struct lp_setup_context *setup,
struct lp_rast_plane *plane_s = &plane[3];
if (s_planes[0]) {
- plane_s->dcdx = -1 << 8;
+ plane_s->dcdx = ~0U << 8;
plane_s->dcdy = 0;
plane_s->c = (1-scissor->x0) << 8;
plane_s->eo = 1 << 8;
@@ -709,7 +709,7 @@ do_triangle_ccw(struct lp_setup_context *setup,
}
if (s_planes[3]) {
plane_s->dcdx = 0;
- plane_s->dcdy = -1 << 8;
+ plane_s->dcdy = ~0U << 8;
plane_s->c = (scissor->y1+1) << 8;
plane_s->eo = 0;
plane_s++;
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