Piotr Caban : wineps: Fix EMRPOLYDRAW16 printing.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 4d26d30574b2162eabde73140ab0fac18cfb46ff
URL:    https://gitlab.winehq.org/wine/wine/-/commit/4d26d30574b2162eabde73140ab0fac...

Author: Piotr Caban <piotr(a)codeweavers.com>
Date:   Thu Sep 14 20:47:35 2023 +0200

wineps: Fix EMRPOLYDRAW16 printing.

It fixes EMRPOLYDRAW16 printing when -O2 option is used (in GCC 12.3.1). The
compiler assumes that apts table has 0 or 1 elements and optimizes the loop
out.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55486

---

 dlls/wineps.drv/printproc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/wineps.drv/printproc.c b/dlls/wineps.drv/printproc.c
index b899814f8c1..74f43b6d27c 100644
--- a/dlls/wineps.drv/printproc.c
+++ b/dlls/wineps.drv/printproc.c
@@ -2738,8 +2738,8 @@ static int WINAPI hmf_proc(HDC hdc, HANDLETABLE *htable,
         if (!pts) return 0;
         for (i = 0; i < p->cpts; i++)
         {
-            pts[i].x = p->apts[i].x;
-            pts[i].y = p->apts[i].y;
+            pts[i].x = ((const POINTS *)p->apts)[i].x;
+            pts[i].y = ((const POINTS *)p->apts)[i].y;
         }
         i = poly_draw(data->ctx, pts, (BYTE *)(p->apts + p->cpts), p->cpts) &&
             MoveToEx(data->ctx->hdc, pts[p->cpts - 1].x, pts[p->cpts - 1].y, NULL);