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- [Win32k] Create a Gre function for GetGlyphIndicesW.

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svn path=/trunk/; revision=44392
This commit is contained in:
James Tabor 2009-12-03 20:07:44 +00:00
parent 99f27439b5
commit 3d7e8046ed
1 changed files with 92 additions and 0 deletions
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92
reactos/subsystems/win32/win32k/objects/freetype.c
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@ -4065,6 +4065,98 @@ NtGdiGetCharWidthW(
return TRUE;
}
DWORD
FASTCALL
GreGetGlyphIndicesW(
HDC hdc,
LPWSTR pwc,
INT cwc,
LPWORD pgi,
DWORD iMode,
DWORD Unknown)
{
PDC dc;
PDC_ATTR pdcattr;
PTEXTOBJ TextObj;
PFONTGDI FontGDI;
HFONT hFont = 0;
OUTLINETEXTMETRICW *potm;
INT i;
FT_Face face;
WCHAR DefChar = 0xffff;
PWSTR Buffer = NULL;
ULONG Size;
if ((!pwc) && (!pgi)) return cwc;
dc = DC_LockDc(hdc);
if (!dc)
{
SetLastWin32Error(ERROR_INVALID_HANDLE);
return GDI_ERROR;
}
pdcattr = dc->pdcattr;
hFont = pdcattr->hlfntNew;
TextObj = RealizeFontInit(hFont);
DC_UnlockDc(dc);
if (!TextObj)
{
SetLastWin32Error(ERROR_INVALID_HANDLE);
return GDI_ERROR;
}
FontGDI = ObjToGDI(TextObj->Font, FONT);
TEXTOBJ_UnlockText(TextObj);
Buffer = ExAllocatePoolWithTag(PagedPool, cwc*sizeof(WORD), TAG_GDITEXT);
if (!Buffer)
{
SetLastWin32Error(ERROR_NOT_ENOUGH_MEMORY);
return GDI_ERROR;
}
if (iMode & GGI_MARK_NONEXISTING_GLYPHS) DefChar = 0x001f; /* Indicate non existence */
else
{
Size = IntGetOutlineTextMetrics(FontGDI, 0, NULL);
potm = ExAllocatePoolWithTag(PagedPool, Size, TAG_GDITEXT);
if (!potm)
{
SetLastWin32Error(ERROR_NOT_ENOUGH_MEMORY);
cwc = GDI_ERROR;
goto ErrorRet;
}
IntGetOutlineTextMetrics(FontGDI, Size, potm);
DefChar = potm->otmTextMetrics.tmDefaultChar; // May need this.
ExFreePool(potm);
}
IntLockFreeType;
face = FontGDI->face;
for (i = 0; i < cwc; i++)
{
Buffer[i] = FT_Get_Char_Index(face, pwc[i]);
if (Buffer[i] == 0)
{
if (DefChar == 0xffff && FT_IS_SFNT(face))
{
TT_OS2 *pOS2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2);
DefChar = (pOS2->usDefaultChar ? FT_Get_Char_Index(face, pOS2->usDefaultChar) : 0);
}
Buffer[i] = DefChar;
}
}
IntUnLockFreeType;
RtlCopyMemory( pgi, Buffer, cwc*sizeof(WORD));
ErrorRet:
if (Buffer) ExFreePoolWithTag(Buffer, TAG_GDITEXT);
return cwc;
}
/*
* @implemented