dwrite: Implement GetFontSignature().

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dlls/dwrite/dwrite_private.h

@@ -201,6 +201,7 @@ extern BOOL opentype_get_vdmx_size(const void*,INT,UINT16*,UINT16*) DECLSPEC_HID
 extern UINT32 opentype_get_cpal_palettecount(const void*) DECLSPEC_HIDDEN;
 extern UINT32 opentype_get_cpal_paletteentrycount(const void*) DECLSPEC_HIDDEN;
 extern HRESULT opentype_get_cpal_entries(const void*,UINT32,UINT32,UINT32,DWRITE_COLOR_F*) DECLSPEC_HIDDEN;
+extern HRESULT opentype_get_font_signature(IDWriteFontFileStream*,DWRITE_FONT_FACE_TYPE,UINT32,FONTSIGNATURE*) DECLSPEC_HIDDEN;
 
 struct dwrite_colorglyph {
     USHORT layer; /* [0, num_layers) index indicating current layer */

dlls/dwrite/gdiinterop.c

@@ -884,19 +884,48 @@ static HRESULT WINAPI gdiinterop1_GetFontSignature_(IDWriteGdiInterop1 *iface, I
     FONTSIGNATURE *fontsig)
 {
     struct gdiinterop *This = impl_from_IDWriteGdiInterop1(iface);
+    IDWriteFontFileStream *stream;
+    IDWriteFontFile *file;
+    UINT32 count;
+    HRESULT hr;
 
-    FIXME("(%p)->(%p %p): stub\n", This, fontface, fontsig);
+    TRACE("(%p)->(%p %p)\n", This, fontface, fontsig);
 
-    return E_NOTIMPL;
+    memset(fontsig, 0, sizeof(*fontsig));
+
+    count = 1;
+    hr = IDWriteFontFace_GetFiles(fontface, &count, &file);
+    hr = get_filestream_from_file(file, &stream);
+    IDWriteFontFile_Release(file);
+    if (FAILED(hr))
+        return hr;
+
+    hr = opentype_get_font_signature(stream, IDWriteFontFace_GetType(fontface),
+        IDWriteFontFace_GetIndex(fontface), fontsig);
+    IDWriteFontFileStream_Release(stream);
+    return hr;
 }
 
 static HRESULT WINAPI gdiinterop1_GetFontSignature(IDWriteGdiInterop1 *iface, IDWriteFont *font, FONTSIGNATURE *fontsig)
 {
     struct gdiinterop *This = impl_from_IDWriteGdiInterop1(iface);
+    IDWriteFontFace *fontface;
+    HRESULT hr;
 
-    FIXME("(%p)->(%p %p): stub\n", This, font, fontsig);
+    TRACE("(%p)->(%p %p)\n", This, font, fontsig);
 
-    return E_NOTIMPL;
+    if (!font)
+        return E_INVALIDARG;
+
+    memset(fontsig, 0, sizeof(*fontsig));
+
+    hr = IDWriteFont_CreateFontFace(font, &fontface);
+    if (FAILED(hr))
+        return hr;
+
+    hr = IDWriteGdiInterop1_GetFontSignature_(iface, fontface, fontsig);
+    IDWriteFontFace_Release(fontface);
+    return hr;
 }
 
 static HRESULT WINAPI gdiinterop1_GetMatchingFontsByLOGFONT(IDWriteGdiInterop1 *iface, LOGFONTW const *logfont,

dlls/dwrite/opentype.c

@@ -1869,3 +1869,26 @@ void opentype_colr_next_glyph(const void *colr, struct dwrite_colorglyph *glyph)
     glyph->glyph = GET_BE_WORD(layer->GID);
     glyph->palette_index = GET_BE_WORD(layer->paletteIndex);
 }
+
+HRESULT opentype_get_font_signature(IDWriteFontFileStream *stream, DWRITE_FONT_FACE_TYPE face_type, UINT32 face_index,
+    FONTSIGNATURE *fontsig)
+{
+    const TT_OS2_V2 *tt_os2;
+    void *os2_context;
+    HRESULT hr;
+
+    hr = opentype_get_font_table(stream, face_type, face_index, MS_OS2_TAG,  (const void**)&tt_os2, &os2_context, NULL, NULL);
+    if (tt_os2) {
+        fontsig->fsUsb[0] = GET_BE_DWORD(tt_os2->ulUnicodeRange1);
+        fontsig->fsUsb[1] = GET_BE_DWORD(tt_os2->ulUnicodeRange2);
+        fontsig->fsUsb[2] = GET_BE_DWORD(tt_os2->ulUnicodeRange3);
+        fontsig->fsUsb[3] = GET_BE_DWORD(tt_os2->ulUnicodeRange4);
+
+        fontsig->fsCsb[0] = GET_BE_DWORD(tt_os2->ulCodePageRange1);
+        fontsig->fsCsb[1] = GET_BE_DWORD(tt_os2->ulCodePageRange2);
+
+        IDWriteFontFileStream_ReleaseFileFragment(stream, os2_context);
+    }
+
+    return hr;
+}

dlls/dwrite/tests/font.c

@@ -6020,7 +6020,6 @@ static void test_GetFontSignature(void)
     ok(hr == S_OK, "got 0x%08x\n", hr);
 
     hr = IDWriteGdiInterop1_GetFontSignature(interop1, NULL, &fontsig);
-todo_wine
     ok(hr == E_INVALIDARG, "got 0x%08x\n", hr);
 
     hr = IDWriteFactory_GetSystemFontCollection(factory, &syscollection, FALSE);
@@ -6053,10 +6052,8 @@ todo_wine
         IDWriteLocalizedStrings_Release(names);
 
         hr = IDWriteGdiInterop1_GetFontSignature(interop1, font, &fontsig);
-    todo_wine
         ok(hr == S_OK, "got 0x%08x\n", hr);
 
-if (hr == S_OK) {
         get_expected_fontsig(font, &expected_signature);
 
         ok(fontsig.fsUsb[0] == expected_signature.fsUsb[0], "%s: fsUsb[0] %#x, expected %#x\n", wine_dbgstr_w(nameW),
@@ -6072,7 +6069,7 @@ if (hr == S_OK) {
             fontsig.fsCsb[0], expected_signature.fsCsb[0]);
         ok(fontsig.fsCsb[1] == expected_signature.fsCsb[1], "%s: fsCsb[1] %#x, expected %#x\n", wine_dbgstr_w(nameW),
             fontsig.fsCsb[1], expected_signature.fsCsb[1]);
-}
+
         IDWriteFont_Release(font);
         IDWriteFontFace_Release(fontface);
         IDWriteFontFamily_Release(family);