[PATCH v2 0/2] MR4404: Fix bug with GetStrCodePages when passing a string that contains a character with different codepages.

[Santino Mazza (＠tati1454)]

--
  v2: mlang: Fix GetStrCodePages for characters with different codepages.
      mlang/tests: Test GetStrCodePages with different codepages character.

https://gitlab.winehq.org/wine/wine/-/merge_requests/4404

[PATCH v2 1/2] mlang/tests: Test GetStrCodePages with different codepages character.

[Santino Mazza]

From: Santino Mazza

---
 dlls/mlang/tests/mlang.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/dlls/mlang/tests/mlang.c b/dlls/mlang/tests/mlang.c
index da0b87ed729..8e55b07b021 100644
--- a/dlls/mlang/tests/mlang.c
+++ b/dlls/mlang/tests/mlang.c
@@ -1163,7 +1163,7 @@ static void IMLangFontLink_Test(IMLangFontLink* iMLFL)
     DWORD dwCodePages, dwManyCodePages;
     DWORD dwCmpCodePages;
     UINT CodePage;
-    static const WCHAR str[] = { 'd', 0x0436, 0xff90 };
+    static const WCHAR str[] = { 'd', 0x0436, 0xff90, 0x0160 };
     LONG processed;
     HRESULT ret;

@@ -1220,6 +1220,19 @@ static void IMLangFontLink_Test(IMLangFontLink* iMLFL)
     ok(dwCodePages == dwCmpCodePages, "expected %lx, got %lx\n", dwCmpCodePages, dwCodePages);
     ok(processed == 1, "expected 1, got %ld\n", processed);

+    /* Latin 2 */
+    dwCmpCodePages = FS_LATIN1 | FS_LATIN2 | FS_TURKISH | FS_BALTIC;
+    ret = IMLangFontLink_GetCharCodePages(iMLFL, 0x0160, &dwCodePages);
+    ok(ret == S_OK, "IMLangFontLink_GetCharCodePages error %lx\n", ret);
+    ok(dwCodePages == dwCmpCodePages, "expected %lx, got %lx\n", dwCmpCodePages, dwCodePages);
+
+    dwCodePages = 0;
+    processed = 0;
+    ret = IMLangFontLink_GetStrCodePages(iMLFL, &str[3], 1, 0, &dwCodePages, &processed);
+    ok(ret == S_OK, "IMLangFontLink_GetStrCodePages error %lx\n", ret);
+    ok(dwCodePages == dwCmpCodePages, "expected %lx, got %lx\n", dwCmpCodePages, dwCodePages);
+    ok(processed == 1, "expected 1, got %ld\n", processed);
+
     /* Cyrillic */
     dwCmpCodePages = FS_CYRILLIC | FS_JISJAPAN | FS_CHINESESIMP | FS_WANSUNG;
     ret = IMLangFontLink_GetCharCodePages(iMLFL, 0x0436, &dwCodePages);
@@ -1262,6 +1275,14 @@ static void IMLangFontLink_Test(IMLangFontLink* iMLFL)
     ok(dwCodePages == dwCmpCodePages, "expected %lx, got %lx\n", dwCmpCodePages, dwCodePages);
     ok(processed == 3, "expected 3, got %ld\n", processed);

+    dwCmpCodePages = FS_JISJAPAN;
+    dwCodePages = 0;
+    processed = 0;
+    ret = IMLangFontLink_GetStrCodePages(iMLFL, str, 4, 0, &dwCodePages, &processed);
+    ok(ret == S_OK, "IMLangFontLink_GetStrCodePages error %lx\n", ret);
+    todo_wine ok(dwCodePages == dwCmpCodePages, "expected %lx, got %lx\n", dwCmpCodePages, dwCodePages);
+    todo_wine ok(processed == 3, "expected 3, got %ld\n", processed);
+
     dwCodePages = 0xffff;
     processed = -1;
     ret = IMLangFontLink_GetStrCodePages(iMLFL, &str[2], 1, 0, &dwCodePages, &processed);

[PATCH v2 2/2] mlang: Fix GetStrCodePages for characters with different codepages.

[Santino Mazza]

From: Santino Mazza

---
 dlls/mlang/mlang.c       | 7 ++++++-
 dlls/mlang/tests/mlang.c | 4 ++--
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/dlls/mlang/mlang.c b/dlls/mlang/mlang.c
index add0dd0a104..8c1c89d3035 100644
--- a/dlls/mlang/mlang.c
+++ b/dlls/mlang/mlang.c
@@ -3340,7 +3340,12 @@ static HRESULT WINAPI fnIMLangFontLink2_GetStrCodePages( IMLangFontLink2* iface,
         if (ret != S_OK) return E_FAIL;

if (!cps) cps = cp;
-        else cps &= cp;
+        else if ((cps & cp) != 0) cps &= cp;
+        else
+        {
+            i--;
+            break;
+        };

/* FIXME: not tested */
         if (priority_cp & cps) break;
diff --git a/dlls/mlang/tests/mlang.c b/dlls/mlang/tests/mlang.c
index 8e55b07b021..3240d945245 100644
--- a/dlls/mlang/tests/mlang.c
+++ b/dlls/mlang/tests/mlang.c
@@ -1280,8 +1280,8 @@ static void IMLangFontLink_Test(IMLangFontLink* iMLFL)
     processed = 0;
     ret = IMLangFontLink_GetStrCodePages(iMLFL, str, 4, 0, &dwCodePages, &processed);
     ok(ret == S_OK, "IMLangFontLink_GetStrCodePages error %lx\n", ret);
-    todo_wine ok(dwCodePages == dwCmpCodePages, "expected %lx, got %lx\n", dwCmpCodePages, dwCodePages);
-    todo_wine ok(processed == 3, "expected 3, got %ld\n", processed);
+    ok(dwCodePages == dwCmpCodePages, "expected %lx, got %lx\n", dwCmpCodePages, dwCodePages);
+    ok(processed == 3, "expected 3, got %ld\n", processed);

dwCodePages = 0xffff;
     processed = -1;