[PATCH v4] gdi32: Limit GetGlyphOutlineW(uChar) to a WORD.

[Arkadiusz Hiler]

Fixes eden* PLUS＋MOSAIC.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=45400
Signed-off-by: Arkadiusz Hiler 
---

Supersedes 193433

v4:
 * shorten commit message
 * shorten ok() messages
 * old compiler compatibility
 * fetch glyph 0x10003 metrics to a correct GLYPHMETRICS

v3:

* ReleaseDC instead of DeleteDC
 * test only with 0x10000 offset
 * test GGO_GLYPH_INDEX masking
 * don't print ret and GetLastError() in case of GetGlyphOutlineW failure
   we get GDI_ERROR and last error is not used
 * simplify comparing GLYPHMETRICS - memcmp

v2:

While investigating the failures with zh_CN locale I figured out that I did
some mistakes in my font definition and that I can just reuse wine-test.ttf:

* It has .notdef with a distinct width
 * It has a few characters defined which are handy to test

The changes are:
 * use wine_test font, it's even better than what I had
 * make sure that our character is different than .notdef
 * test multiple characters
 * test multiple values in the higher bytes
 * make sure that no matter what we put past the two lower bytes we get the
   same character

dlls/gdi32/font.c       |  2 ++
 dlls/gdi32/tests/font.c | 52 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 54 insertions(+)

diff --git a/dlls/gdi32/font.c b/dlls/gdi32/font.c
index a71b24423ac..3c5a6e9a231 100644
--- a/dlls/gdi32/font.c
+++ b/dlls/gdi32/font.c
@@ -2911,6 +2911,8 @@ DWORD WINAPI GetGlyphOutlineW( HDC hdc, UINT uChar, UINT fuFormat,
     dc = get_dc_ptr(hdc);
     if(!dc) return GDI_ERROR;

+    uChar &= 0xffff;
+
     dev = GET_DC_PHYSDEV( dc, pGetGlyphOutline );
     ret = dev->funcs->pGetGlyphOutline( dev, uChar, fuFormat, lpgm, cbBuffer, lpBuffer, lpmat2 );
     release_dc_ptr( dc );
diff --git a/dlls/gdi32/tests/font.c b/dlls/gdi32/tests/font.c
index 0ada22d95d5..4c8b1cbb91b 100644
--- a/dlls/gdi32/tests/font.c
+++ b/dlls/gdi32/tests/font.c
@@ -5823,6 +5823,57 @@ todo_wine
     ReleaseDC(NULL, hdc);
 }

+static void test_GetGlyphOutline_character(void)
+{
+    HFONT hfont, hfont_old;
+    LOGFONTA lf;
+    HDC hdc;
+    DWORD ret;
+    GLYPHMETRICS gm1, gm2, gmn;
+    char test_chars[] = { 'A', 'D', '!', '\0' };
+    char *current_char;
+
+    memset(&lf, 0, sizeof(lf));
+    lf.lfHeight = 72;
+    lstrcpyA(lf.lfFaceName, "wine_test");
+
+    hfont = CreateFontIndirectA(&lf);
+    ok(hfont != 0, "CreateFontIndirectA error %u\n", GetLastError());
+
+    hdc = GetDC(NULL);
+
+    hfont_old = SelectObject(hdc, hfont);
+    ok(hfont_old != NULL, "SelectObject failed\n");
+
+    ret = GetGlyphOutlineW(hdc, 'Z', GGO_METRICS, &gmn, 0, NULL, &mat);
+    ok(ret != GDI_ERROR, "GetGlyphOutlineW failed to default to .notdef for character 'Z'\n");
+
+    for (current_char = test_chars; *current_char != '\0'; current_char++)
+    {
+        ret = GetGlyphOutlineW(hdc, *current_char, GGO_METRICS, &gm1, 0, NULL, &mat);
+        ok(ret != GDI_ERROR, "GetGlyphOutlineW failed for '%c'\n", *current_char);
+        ok(memcmp(&gm1, &gmn, sizeof(gmn)) != 0, "the test character '%c' matches .notdef\n", *current_char);
+
+        ret = GetGlyphOutlineW(hdc, 0x10000 + *current_char, GGO_METRICS, &gm2, 0, NULL, &mat);
+        ok(ret != GDI_ERROR, "GetGlyphOutlineW failed for 0x10000 + '%c'\n", *current_char);
+        ok(memcmp(&gm1, &gm2, sizeof(gmn)) == 0, "GetGlyphOutlineW returned wrong metrics for character 0x10000 + '%c'\n", *current_char);
+    }
+
+    ret = GetGlyphOutlineW(hdc, 0x3, GGO_METRICS|GGO_GLYPH_INDEX, &gm1, 0, NULL, &mat);
+    ok(ret != GDI_ERROR, "GetGlyphOutlineW failed for glyph index 0x3\n");
+
+    ret = GetGlyphOutlineW(hdc, 0xFFFF, GGO_METRICS|GGO_GLYPH_INDEX, &gm2, 0, NULL, &mat);
+    ok(ret == GDI_ERROR, "GetGlyphOutlineW for nonexistent glyph index 0xFFFF has succeded\n");
+
+    ret = GetGlyphOutlineW(hdc, 0x10003, GGO_METRICS|GGO_GLYPH_INDEX, &gm2, 0, NULL, &mat);
+    ok(ret != GDI_ERROR, "GetGlyphOutlineW for index 0x10003 has failed\n");
+    ok(memcmp(&gm1, &gm2, sizeof(gmn)) == 0, "GetGlyphOutlineW returned wrong metrics for glyph 0x10003\n");
+
+    SelectObject(hdc, hfont_old);
+    DeleteObject(hfont);
+    ReleaseDC(NULL, hdc);
+}
+
 static void test_fstype_fixup(void)
 {
     HDC hdc;
@@ -5945,6 +5996,7 @@ static void test_CreateScalableFontResource(void)

test_GetGlyphOutline_empty_contour();
     test_GetGlyphOutline_metric_clipping();
+    test_GetGlyphOutline_character();
     test_fstype_fixup();

ret = pRemoveFontResourceExA(fot_name, FR_PRIVATE, 0);

[Huw Davies]

Signed-off-by: Huw Davies