Fix buffer overrun

Was a little too eager zeroing out sh_is_segment[]
2025-01-09 12:21:31 +11:00 · 2020-05-26 22:46:33 -07:00 · 2020-05-26 22:46:33 -07:00 · e16f68d89d
parent dbcffb10db
commit e16f68d89d
2 changed files with 2 additions and 0 deletions
--- a/piet-gpu/shader/coarse.comp
+++ b/piet-gpu/shader/coarse.comp
@ -133,6 +133,8 @@ void main() {
        for (uint i = 0; i < N_SLICE; i++) {
            sh_bitmaps[i][th_ix] = 0;
            sh_backdrop[i][th_ix] = 0;
+        }
+        if (th_ix < N_SLICE) {
            sh_is_segment[th_ix] = 0;
        }

--- a/piet-gpu/shader/coarse.spv
+++ b/piet-gpu/shader/coarse.spv