[ros-diffs] [reactos] 01/01: [FREETYPE] Fix 3 regressions in one patch

[Joachim Henze]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=98b7ecd280c0f641d4593…

commit 98b7ecd280c0f641d4593c8ba792b463a5117550
Author:     Joachim Henze <Joachim.Henze(a)reactos.org>
AuthorDate: Mon Mar 11 20:10:14 2019 +0100
Commit:     Joachim Henze <Joachim.Henze(a)reactos.org>
CommitDate: Mon Mar 11 20:10:14 2019 +0100

    [FREETYPE] Fix 3 regressions in one patch
    
    Fixes regression CORE-15785 (Zim Desktop Wiki 0.67 crashed) and
    Fixes regression CORE-15755 (NLite 1.4.9.3 used wrong font)
    
    without reintroducing regression CORE-15558 (AbiWord 2.6.8 font enumeration)
    
    This is achieved by partial revert of
    0.4.12-dev-320-g
    6e4e5a004c9da6276695d90187fb577812e8892f
    and got ack of Katayama Hirofumi MZ.
    
    Thanks to patches author Doug Lyons.
    Test-results: https://reactos.org/testman/compare.php?ids=66264,66267
---
 win32ss/gdi/ntgdi/freetype.c | 196 +++++++++++++++++++++++++++++++++----------
 1 file changed, 152 insertions(+), 44 deletions(-)

diff --git a/win32ss/gdi/ntgdi/freetype.c b/win32ss/gdi/ntgdi/freetype.c
index 7005057a077..4f58f030f27 100644
--- a/win32ss/gdi/ntgdi/freetype.c
+++ b/win32ss/gdi/ntgdi/freetype.c
@@ -2244,6 +2244,73 @@ IntGetOutlineTextMetrics(PFONTGDI FontGDI,
     return Cache->OutlineRequiredSize;
 }
 
+static PFONTGDI FASTCALL
+FindFaceNameInList(PUNICODE_STRING FaceName, PLIST_ENTRY Head)
+{
+    PLIST_ENTRY Entry;
+    PFONT_ENTRY CurrentEntry;
+    ANSI_STRING EntryFaceNameA;
+    UNICODE_STRING EntryFaceNameW;
+    FONTGDI *FontGDI;
+    NTSTATUS status;
+
+    for (Entry = Head->Flink; Entry != Head; Entry = Entry->Flink)
+    {
+        CurrentEntry = CONTAINING_RECORD(Entry, FONT_ENTRY, ListEntry);
+
+        FontGDI = CurrentEntry->Font;
+        ASSERT(FontGDI);
+
+        RtlInitAnsiString(&EntryFaceNameA,
FontGDI->SharedFace->Face->family_name);
+        status = RtlAnsiStringToUnicodeString(&EntryFaceNameW, &EntryFaceNameA,
TRUE);
+        if (!NT_SUCCESS(status))
+        {
+            break;
+        }
+
+        if ((LF_FACESIZE - 1) * sizeof(WCHAR) < EntryFaceNameW.Length)
+        {
+            EntryFaceNameW.Length = (LF_FACESIZE - 1) * sizeof(WCHAR);
+            EntryFaceNameW.Buffer[LF_FACESIZE - 1] = L'\0';
+        }
+
+        if (RtlEqualUnicodeString(FaceName, &EntryFaceNameW, TRUE))
+        {
+            RtlFreeUnicodeString(&EntryFaceNameW);
+            return FontGDI;
+        }
+
+        RtlFreeUnicodeString(&EntryFaceNameW);
+    }
+
+    return NULL;
+}
+
+static PFONTGDI FASTCALL
+FindFaceNameInLists(PUNICODE_STRING FaceName)
+{
+    PPROCESSINFO Win32Process;
+    PFONTGDI Font;
+
+    /* Search the process local list.
+       We do not have to search the 'Mem' list, since those fonts are linked in
the PrivateFontListHead */
+    Win32Process = PsGetCurrentProcessWin32Process();
+    IntLockProcessPrivateFonts(Win32Process);
+    Font = FindFaceNameInList(FaceName, &Win32Process->PrivateFontListHead);
+    IntUnLockProcessPrivateFonts(Win32Process);
+    if (NULL != Font)
+    {
+        return Font;
+    }
+
+    /* Search the global list */
+    IntLockGlobalFonts();
+    Font = FindFaceNameInList(FaceName, &g_FontListHead);
+    IntUnLockGlobalFonts();
+
+    return Font;
+}
+
 /* See https://msdn.microsoft.com/en-us/library/bb165625(v=vs.90).aspx */
 static BYTE
 CharSetFromLangID(LANGID LangID)
@@ -2670,10 +2737,67 @@ FontFamilyFillInfo(PFONTFAMILYINFO Info, LPCWSTR FaceName,
     Info->NewTextMetricEx.ntmFontSig = fs;
 }
 
+static int FASTCALL
+FindFaceNameInInfo(PUNICODE_STRING FaceName, PFONTFAMILYINFO Info, DWORD InfoEntries)
+{
+    DWORD i;
+    UNICODE_STRING InfoFaceName;
+
+    for (i = 0; i < InfoEntries; i++)
+    {
+        RtlInitUnicodeString(&InfoFaceName,
Info[i].EnumLogFontEx.elfLogFont.lfFaceName);
+        if (RtlEqualUnicodeString(&InfoFaceName, FaceName, TRUE))
+        {
+            return i;
+        }
+    }
+
+    return -1;
+}
+
+static BOOLEAN FASTCALL
+FontFamilyInclude(LPLOGFONTW LogFont, PUNICODE_STRING FaceName,
+                  PFONTFAMILYINFO Info, DWORD InfoEntries)
+{
+    UNICODE_STRING LogFontFaceName;
+
+    RtlInitUnicodeString(&LogFontFaceName, LogFont->lfFaceName);
+    if (0 != LogFontFaceName.Length &&
+        !RtlEqualUnicodeString(&LogFontFaceName, FaceName, TRUE))
+    {
+        return FALSE;
+    }
+
+    return FindFaceNameInInfo(FaceName, Info, InfoEntries) < 0;
+}
+
+static BOOL FASTCALL
+FontFamilyFound(PFONTFAMILYINFO InfoEntry,
+                PFONTFAMILYINFO Info, DWORD InfoCount)
+{
+    LPLOGFONTW plf1 = &InfoEntry->EnumLogFontEx.elfLogFont;
+    LPWSTR pFullName1 = InfoEntry->EnumLogFontEx.elfFullName;
+    LPWSTR pFullName2;
+    DWORD i;
+
+    for (i = 0; i < InfoCount; ++i)
+    {
+        LPLOGFONTW plf2 = &Info[i].EnumLogFontEx.elfLogFont;
+        if (plf1->lfCharSet != plf2->lfCharSet)
+            continue;
+
+        pFullName2 = Info[i].EnumLogFontEx.elfFullName;
+        if (_wcsicmp(pFullName1, pFullName2) != 0)
+            continue;
+
+        return TRUE;
+    }
+    return FALSE;
+}
+
 static BOOLEAN FASTCALL
 GetFontFamilyInfoForList(LPLOGFONTW LogFont,
                          PFONTFAMILYINFO Info,
-                         LPCWSTR NominalName,
                          DWORD *pCount,
                          DWORD MaxCount,
                          PLIST_ENTRY Head)
@@ -2700,38 +2824,28 @@ GetFontFamilyInfoForList(LPLOGFONTW LogFont,
         {
             if (Count < MaxCount)
             {
-                FontFamilyFillInfo(&Info[Count], NominalName, NULL, FontGDI);
+                FontFamilyFillInfo(&Info[Count], NULL, NULL, FontGDI);
             }
             Count++;
             continue;
         }
 
-        FontFamilyFillInfo(&InfoEntry, NominalName, NULL, FontGDI);
+        FontFamilyFillInfo(&InfoEntry, NULL, NULL, FontGDI);
 
-        if (NominalName)
+        if (_wcsnicmp(LogFont->lfFaceName,
InfoEntry.EnumLogFontEx.elfLogFont.lfFaceName, RTL_NUMBER_OF(LogFont->lfFaceName)-1) !=
0 &&
+            _wcsnicmp(LogFont->lfFaceName, InfoEntry.EnumLogFontEx.elfFullName,
RTL_NUMBER_OF(LogFont->lfFaceName)-1) != 0)
         {
-            RtlStringCchCopyW(InfoEntry.EnumLogFontEx.elfLogFont.lfFaceName,
-                             
RTL_NUMBER_OF(InfoEntry.EnumLogFontEx.elfLogFont.lfFaceName),
-                              NominalName);
+            continue;
         }
-        else
+
+        if (!FontFamilyFound(&InfoEntry, Info, min(Count, MaxCount)))
         {
-            if (_wcsnicmp(LogFont->lfFaceName,
-                          InfoEntry.EnumLogFontEx.elfLogFont.lfFaceName,
-                          RTL_NUMBER_OF(LogFont->lfFaceName) - 1) != 0 &&
-                _wcsnicmp(LogFont->lfFaceName,
-                          InfoEntry.EnumLogFontEx.elfFullName,
-                          RTL_NUMBER_OF(LogFont->lfFaceName) - 1) != 0)
+            if (Count < MaxCount)
             {
-                continue;
+                RtlCopyMemory(&Info[Count], &InfoEntry, sizeof(InfoEntry));
             }
+            Count++;
         }
-
-        if (Count < MaxCount)
-        {
-            RtlCopyMemory(&Info[Count], &InfoEntry, sizeof(InfoEntry));
-        }
-        Count++;
     }
 
     *pCount = Count;
@@ -2747,9 +2861,10 @@ GetFontFamilyInfoForSubstitutes(LPLOGFONTW LogFont,
 {
     PLIST_ENTRY pEntry, pHead = &g_FontSubstListHead;
     PFONTSUBST_ENTRY pCurrentEntry;
-    PUNICODE_STRING pFromW, pToW;
+    PUNICODE_STRING pFromW;
+    FONTGDI *FontGDI;
     LOGFONTW lf = *LogFont;
-    PPROCESSINFO Win32Process = PsGetCurrentProcessWin32Process();
+    UNICODE_STRING NameW;
 
     for (pEntry = pHead->Flink; pEntry != pHead; pEntry = pEntry->Flink)
     {
@@ -2758,32 +2873,25 @@ GetFontFamilyInfoForSubstitutes(LPLOGFONTW LogFont,
         pFromW = &pCurrentEntry->FontNames[FONTSUBST_FROM];
         if (LogFont->lfFaceName[0] != UNICODE_NULL)
         {
-            if (_wcsicmp(LogFont->lfFaceName, pFromW->Buffer) != 0)
+            if (!FontFamilyInclude(LogFont, pFromW, Info, min(*pCount, MaxCount)))
                 continue;   /* mismatch */
         }
 
-        pToW = &pCurrentEntry->FontNames[FONTSUBST_TO];
-        if (RtlEqualUnicodeString(pFromW, pToW, TRUE) &&
-            pCurrentEntry->CharSets[FONTSUBST_FROM] ==
-            pCurrentEntry->CharSets[FONTSUBST_TO])
-        {
-            continue;
-        }
-
         IntUnicodeStringToBuffer(lf.lfFaceName, sizeof(lf.lfFaceName), pFromW);
         SubstituteFontRecurse(&lf);
-        if (LogFont->lfCharSet != DEFAULT_CHARSET && LogFont->lfCharSet !=
lf.lfCharSet)
-            continue;
 
-        IntLockGlobalFonts();
-        GetFontFamilyInfoForList(&lf, Info, pFromW->Buffer, pCount, MaxCount,
&g_FontListHead);
-        IntUnLockGlobalFonts();
+        RtlInitUnicodeString(&NameW, lf.lfFaceName);
+        FontGDI = FindFaceNameInLists(&NameW);
+        if (FontGDI == NULL)
+        {
+            continue;   /* no real font */
+        }
 
-        IntLockProcessPrivateFonts(Win32Process);
-        GetFontFamilyInfoForList(&lf, Info, pFromW->Buffer, pCount, MaxCount,
-                                 &Win32Process->PrivateFontListHead);
-        IntUnLockProcessPrivateFonts(Win32Process);
-        break;
+        if (*pCount < MaxCount)
+        {
+            FontFamilyFillInfo(&Info[*pCount], pFromW->Buffer, NULL, FontGDI);
+        }
+        (*pCount)++;
     }
 
     return TRUE;
@@ -5426,7 +5534,7 @@ NtGdiGetFontFamilyInfo(HDC Dc,
     /* Enumerate font families in the global list */
     IntLockGlobalFonts();
     Count = 0;
-    if (! GetFontFamilyInfoForList(&LogFont, Info, NULL, &Count, Size,
&g_FontListHead) )
+    if (! GetFontFamilyInfoForList(&LogFont, Info, &Count, Size,
&g_FontListHead) )
     {
         IntUnLockGlobalFonts();
         ExFreePoolWithTag(Info, GDITAG_TEXT);
@@ -5437,7 +5545,7 @@ NtGdiGetFontFamilyInfo(HDC Dc,
     /* Enumerate font families in the process local list */
     Win32Process = PsGetCurrentProcessWin32Process();
     IntLockProcessPrivateFonts(Win32Process);
-    if (! GetFontFamilyInfoForList(&LogFont, Info, NULL, &Count, Size,
+    if (! GetFontFamilyInfoForList(&LogFont, Info, &Count, Size,
                                    &Win32Process->PrivateFontListHead))
     {
         IntUnLockProcessPrivateFonts(Win32Process);