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-rw-r--r--payloads/libpayload/drivers/video/graphics.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/payloads/libpayload/drivers/video/graphics.c b/payloads/libpayload/drivers/video/graphics.c
index 8cb984b872..9494de31f5 100644
--- a/payloads/libpayload/drivers/video/graphics.c
+++ b/payloads/libpayload/drivers/video/graphics.c
@@ -349,8 +349,8 @@ int draw_rounded_box(const struct scale *pos_rel, const struct scale *dim_rel,
/* Use 64 bits to avoid overflow */
int32_t x, y;
uint64_t yy;
- const uint64_t rrx = r.x * r.x, rry = r.y * r.y;
- const uint64_t ssx = s.x * s.x, ssy = s.y * s.y;
+ const uint64_t rrx = (uint64_t)r.x * r.x, rry = (uint64_t)r.y * r.y;
+ const uint64_t ssx = (uint64_t)s.x * s.x, ssy = (uint64_t)s.y * s.y;
x_begin = 0;
x_end = 0;
for (y = r.y - 1; y >= 0; y--) {
@@ -358,7 +358,7 @@ int draw_rounded_box(const struct scale *pos_rel, const struct scale *dim_rel,
* The inequality is valid in the beginning of each iteration:
* y^2 + x_end^2 < r^2
*/
- yy = y * y;
+ yy = (uint64_t)y * y;
/* Check yy/ssy + xx/ssx < 1 */
while (yy * ssx + x_begin * x_begin * ssy < ssx * ssy)
x_begin++;