+++ /dev/null
-/*
- * PROJECT: ReactOS win32 kernel mode subsystem
- * LICENSE: GPL - See COPYING in the top level directory
- * FILE: win32ss/gdi/ntgdi/font.c
- * PURPOSE: Font
- * PROGRAMMERS: James Tabor <james.tabor@reactos.org>
- * Timo Kreuzer <timo.kreuzer@reactos.org>
- * Katayama Hirofumi MZ <katayama.hirofumi.mz@gmail.com>
- */
-
-/** Includes ******************************************************************/
-
-#include <win32k.h>
-
-#define NDEBUG
-#include <debug.h>
-
-HFONT APIENTRY HfontCreate( IN PENUMLOGFONTEXDVW pelfw,IN ULONG cjElfw,IN LFTYPE lft,IN FLONG fl,IN PVOID pvCliData );
-
-/** Internal ******************************************************************/
-
-HFONT FASTCALL
-GreCreateFontIndirectW( LOGFONTW *lplf )
-{
- if (lplf)
- {
- ENUMLOGFONTEXDVW Logfont;
-
- RtlCopyMemory( &Logfont.elfEnumLogfontEx.elfLogFont, lplf, sizeof(LOGFONTW));
- RtlZeroMemory( &Logfont.elfEnumLogfontEx.elfFullName,
- sizeof(Logfont.elfEnumLogfontEx.elfFullName));
- RtlZeroMemory( &Logfont.elfEnumLogfontEx.elfStyle,
- sizeof(Logfont.elfEnumLogfontEx.elfStyle));
- RtlZeroMemory( &Logfont.elfEnumLogfontEx.elfScript,
- sizeof(Logfont.elfEnumLogfontEx.elfScript));
-
- Logfont.elfDesignVector.dvNumAxes = 0;
-
- RtlZeroMemory( &Logfont.elfDesignVector, sizeof(DESIGNVECTOR));
-
- return HfontCreate((PENUMLOGFONTEXDVW)&Logfont, 0, 0, 0, NULL );
- }
- else return NULL;
-}
-
-DWORD
-FASTCALL
-GreGetKerningPairs(
- HDC hDC,
- ULONG NumPairs,
- LPKERNINGPAIR krnpair)
-{
- PDC dc;
- PDC_ATTR pdcattr;
- PTEXTOBJ TextObj;
- PFONTGDI FontGDI;
- DWORD Count;
- KERNINGPAIR *pKP;
-
- dc = DC_LockDc(hDC);
- if (!dc)
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return 0;
- }
-
- pdcattr = dc->pdcattr;
- TextObj = RealizeFontInit(pdcattr->hlfntNew);
- DC_UnlockDc(dc);
-
- if (!TextObj)
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return 0;
- }
-
- FontGDI = ObjToGDI(TextObj->Font, FONT);
- TEXTOBJ_UnlockText(TextObj);
-
- Count = ftGdiGetKerningPairs(FontGDI,0,NULL);
-
- if ( Count && krnpair )
- {
- if (Count > NumPairs)
- {
- EngSetLastError(ERROR_INSUFFICIENT_BUFFER);
- return 0;
- }
- pKP = ExAllocatePoolWithTag(PagedPool, Count * sizeof(KERNINGPAIR), GDITAG_TEXT);
- if (!pKP)
- {
- EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
- return 0;
- }
- ftGdiGetKerningPairs(FontGDI,Count,pKP);
-
- RtlCopyMemory(krnpair, pKP, Count * sizeof(KERNINGPAIR));
-
- ExFreePoolWithTag(pKP,GDITAG_TEXT);
- }
- return Count;
-}
-
-/*
-
- It is recommended that an application use the GetFontLanguageInfo function
- to determine whether the GCP_DIACRITIC, GCP_DBCS, GCP_USEKERNING, GCP_LIGATE,
- GCP_REORDER, GCP_GLYPHSHAPE, and GCP_KASHIDA values are valid for the
- currently selected font. If not valid, GetCharacterPlacement ignores the
- value.
-
- M$ must use a preset "compiled in" support for each language based releases.
- ReactOS uses FreeType, this will need to be supported. ATM this is hard coded
- for GCPCLASS_LATIN!
-
- */
-#if 0
-DWORD
-FASTCALL
-GreGetCharacterPlacementW(
- HDC hdc,
- LPCWSTR pwsz,
- INT nCount,
- INT nMaxExtent,
- LPGCP_RESULTSW pgcpw,
- DWORD dwFlags)
-{
- GCP_RESULTSW gcpwSave;
- UINT i, nSet, cSet;
- INT *tmpDxCaretPos;
- LONG Cx;
- SIZE Size = {0,0};
-
- DPRINT1("GreGCPW Start\n");
-
- if (!pgcpw)
- {
- if (GreGetTextExtentW( hdc, pwsz, nCount, &Size, 1))
- return MAKELONG(Size.cx, Size.cy);
- return 0;
- }
-
- DPRINT1("GreGCPW 1\n");
-
- RtlCopyMemory(&gcpwSave, pgcpw, sizeof(GCP_RESULTSW));
-
- cSet = nSet = nCount;
-
- if ( nCount > gcpwSave.nGlyphs ) cSet = gcpwSave.nGlyphs;
-
- /* GCP_JUSTIFY may only be used in conjunction with GCP_MAXEXTENT. */
- if ( dwFlags & GCP_JUSTIFY) dwFlags |= GCP_MAXEXTENT;
-
- if ( !gcpwSave.lpDx && gcpwSave.lpCaretPos )
- tmpDxCaretPos = gcpwSave.lpCaretPos;
- else
- tmpDxCaretPos = gcpwSave.lpDx;
-
- if ( !GreGetTextExtentExW( hdc,
- pwsz,
- cSet,
- nMaxExtent,
- ((dwFlags & GCP_MAXEXTENT) ? (PULONG) &cSet : NULL),
- (PULONG) tmpDxCaretPos,
- &Size,
- 0) )
- {
- return 0;
- }
-
- DPRINT1("GreGCPW 2\n");
-
- nSet = cSet;
-
- if ( tmpDxCaretPos && nSet > 0)
- {
- for (i = (nSet - 1); i > 0; i--)
- {
- tmpDxCaretPos[i] -= tmpDxCaretPos[i - 1];
- }
- }
-
- if ( !(dwFlags & GCP_MAXEXTENT) || nSet )
- {
- if ( (dwFlags & GCP_USEKERNING) &&
- ( gcpwSave.lpDx ||
- gcpwSave.lpCaretPos ) &&
- nSet >= 2 )
- {
- DWORD Count;
- LPKERNINGPAIR pKP;
-
- Count = GreGetKerningPairs( hdc, 0, NULL);
- if (Count)
- {
- pKP = ExAllocatePoolWithTag(PagedPool, Count * sizeof(KERNINGPAIR), GDITAG_TEXT);
- if (pKP)
- {
- if ( GreGetKerningPairs( hdc, Count, pKP) != Count)
- {
- ExFreePoolWithTag( pKP, GDITAG_TEXT);
- return 0;
- }
-
- if ( (ULONG_PTR)(pKP) < ((ULONG_PTR)(pKP) + (ULONG_PTR)(Count * sizeof(KERNINGPAIR))) )
- {
- DPRINT1("We Need to Do Something HERE!\n");
- }
-
- ExFreePoolWithTag( pKP, GDITAG_TEXT);
-
- if ( dwFlags & GCP_MAXEXTENT )
- {
- if ( Size.cx > nMaxExtent )
- {
- for (Cx = Size.cx; nSet > 0; nSet--)
- {
- Cx -= tmpDxCaretPos[nSet - 1];
- Size.cx = Cx;
- if ( Cx <= nMaxExtent ) break;
- }
- }
- if ( !nSet )
- {
- pgcpw->nGlyphs = 0;
- pgcpw->nMaxFit = 0;
- return 0;
- }
- }
- }
- }
- }
-
- if ( (dwFlags & GCP_JUSTIFY) &&
- ( gcpwSave.lpDx ||
- gcpwSave.lpCaretPos ) &&
- nSet )
- {
- DPRINT1("We Need to Do Something HERE 2!\n");
- }
-
- if ( gcpwSave.lpDx && gcpwSave.lpCaretPos )
- RtlCopyMemory( gcpwSave.lpCaretPos, gcpwSave.lpDx, nSet * sizeof(LONG));
-
- if ( gcpwSave.lpCaretPos )
- {
- int pos = 0;
- i = 0;
- if ( nSet > 0 )
- {
- do
- {
- Cx = gcpwSave.lpCaretPos[i];
- gcpwSave.lpCaretPos[i] = pos;
- pos += Cx;
- ++i;
- }
- while ( i < nSet );
- }
- }
-
- if ( gcpwSave.lpOutString )
- RtlCopyMemory(gcpwSave.lpOutString, pwsz, nSet * sizeof(WCHAR));
-
- if ( gcpwSave.lpClass )
- RtlFillMemory(gcpwSave.lpClass, nSet, GCPCLASS_LATIN);
-
- if ( gcpwSave.lpOrder )
- {
- for (i = 0; i < nSet; i++)
- gcpwSave.lpOrder[i] = i;
- }
-
- if ( gcpwSave.lpGlyphs )
- {
- if ( GreGetGlyphIndicesW( hdc, pwsz, nSet, gcpwSave.lpGlyphs, 0, 0) == GDI_ERROR )
- {
- nSet = 0;
- Size.cx = 0;
- Size.cy = 0;
- }
- }
- pgcpw->nGlyphs = nSet;
- pgcpw->nMaxFit = nSet;
- }
- DPRINT1("GreGCPW Exit\n");
- return MAKELONG(Size.cx, Size.cy);
-}
-#endif
-
-ULONG
-FASTCALL
-FontGetObject(PTEXTOBJ plfont, ULONG cjBuffer, PVOID pvBuffer)
-{
- ULONG cjMaxSize;
- ENUMLOGFONTEXDVW *plf = &plfont->logfont;
-
- /* If buffer is NULL, only the size is requested */
- if (pvBuffer == NULL) return sizeof(LOGFONTW);
-
- /* Calculate the maximum size according to number of axes */
- cjMaxSize = FIELD_OFFSET(ENUMLOGFONTEXDVW,
- elfDesignVector.dvValues[plf->elfDesignVector.dvNumAxes]);
-
- if (cjBuffer > cjMaxSize) cjBuffer = cjMaxSize;
-
- RtlCopyMemory(pvBuffer, plf, cjBuffer);
-
- return cjBuffer;
-}
-
-DWORD
-FASTCALL
-IntGetCharDimensions(HDC hdc, PTEXTMETRICW ptm, PDWORD height)
-{
- PDC pdc;
- PDC_ATTR pdcattr;
- PTEXTOBJ TextObj;
- SIZE sz;
- TMW_INTERNAL tmwi;
- BOOL Good;
-
- static const WCHAR alphabet[] = {
- 'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q',
- 'r','s','t','u','v','w','x','y','z','A','B','C','D','E','F','G','H',
- 'I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z',0};
-
- if(!ftGdiGetTextMetricsW(hdc, &tmwi)) return 0;
-
- pdc = DC_LockDc(hdc);
-
- if (!pdc) return 0;
-
- pdcattr = pdc->pdcattr;
-
- TextObj = RealizeFontInit(pdcattr->hlfntNew);
- if ( !TextObj )
- {
- DC_UnlockDc(pdc);
- return 0;
- }
- Good = TextIntGetTextExtentPoint(pdc, TextObj, alphabet, 52, 0, NULL, 0, &sz, 0);
- TEXTOBJ_UnlockText(TextObj);
- DC_UnlockDc(pdc);
-
- if (!Good) return 0;
- if (ptm) *ptm = tmwi.TextMetric;
- if (height) *height = tmwi.TextMetric.tmHeight;
-
- return (sz.cx / 26 + 1) / 2;
-}
-
-
-DWORD
-FASTCALL
-IntGetFontLanguageInfo(PDC Dc)
-{
- PDC_ATTR pdcattr;
- FONTSIGNATURE fontsig;
- static const DWORD GCP_DBCS_MASK=0x003F0000,
- GCP_DIACRITIC_MASK=0x00000000,
- FLI_GLYPHS_MASK=0x00000000,
- GCP_GLYPHSHAPE_MASK=0x00000040,
- GCP_KASHIDA_MASK=0x00000000,
- GCP_LIGATE_MASK=0x00000000,
- GCP_USEKERNING_MASK=0x00000000,
- GCP_REORDER_MASK=0x00000060;
-
- DWORD result=0;
-
- ftGdiGetTextCharsetInfo( Dc, &fontsig, 0 );
-
- /* We detect each flag we return using a bitmask on the Codepage Bitfields */
- if( (fontsig.fsCsb[0]&GCP_DBCS_MASK)!=0 )
- result|=GCP_DBCS;
-
- if( (fontsig.fsCsb[0]&GCP_DIACRITIC_MASK)!=0 )
- result|=GCP_DIACRITIC;
-
- if( (fontsig.fsCsb[0]&FLI_GLYPHS_MASK)!=0 )
- result|=FLI_GLYPHS;
-
- if( (fontsig.fsCsb[0]&GCP_GLYPHSHAPE_MASK)!=0 )
- result|=GCP_GLYPHSHAPE;
-
- if( (fontsig.fsCsb[0]&GCP_KASHIDA_MASK)!=0 )
- result|=GCP_KASHIDA;
-
- if( (fontsig.fsCsb[0]&GCP_LIGATE_MASK)!=0 )
- result|=GCP_LIGATE;
-
- if( (fontsig.fsCsb[0]&GCP_USEKERNING_MASK)!=0 )
- result|=GCP_USEKERNING;
-
- pdcattr = Dc->pdcattr;
-
- /* This might need a test for a HEBREW- or ARABIC_CHARSET as well */
- if ( pdcattr->lTextAlign & TA_RTLREADING )
- if( (fontsig.fsCsb[0]&GCP_REORDER_MASK)!=0 )
- result|=GCP_REORDER;
-
- return result;
-}
-
-PTEXTOBJ
-FASTCALL
-RealizeFontInit(HFONT hFont)
-{
- NTSTATUS Status = STATUS_SUCCESS;
- PTEXTOBJ pTextObj;
-
- pTextObj = TEXTOBJ_LockText(hFont);
-
- if ( pTextObj && !(pTextObj->fl & TEXTOBJECT_INIT))
- {
- Status = TextIntRealizeFont(hFont, pTextObj);
- if (!NT_SUCCESS(Status))
- {
- TEXTOBJ_UnlockText(pTextObj);
- return NULL;
- }
- }
- return pTextObj;
-}
-
-
-/** Functions ******************************************************************/
-
-INT
-APIENTRY
-NtGdiAddFontResourceW(
- IN WCHAR *pwcFiles,
- IN ULONG cwc,
- IN ULONG cFiles,
- IN FLONG fl,
- IN DWORD dwPidTid,
- IN OPTIONAL DESIGNVECTOR *pdv)
-{
- UNICODE_STRING SafeFileName;
- INT Ret;
-
- DBG_UNREFERENCED_PARAMETER(cFiles);
- DBG_UNREFERENCED_PARAMETER(dwPidTid);
- DBG_UNREFERENCED_PARAMETER(pdv);
-
- DPRINT("NtGdiAddFontResourceW\n");
-
- /* cwc = Length + trailing zero. */
- if (cwc <= 1 || cwc > UNICODE_STRING_MAX_CHARS)
- return 0;
-
- SafeFileName.MaximumLength = cwc * sizeof(WCHAR);
- SafeFileName.Length = SafeFileName.MaximumLength - sizeof(UNICODE_NULL);
- SafeFileName.Buffer = ExAllocatePoolWithTag(PagedPool,
- SafeFileName.MaximumLength,
- TAG_STRING);
- if (!SafeFileName.Buffer)
- {
- return 0;
- }
-
- _SEH2_TRY
- {
- ProbeForRead(pwcFiles, cwc * sizeof(WCHAR), sizeof(WCHAR));
- RtlCopyMemory(SafeFileName.Buffer, pwcFiles, SafeFileName.Length);
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- ExFreePoolWithTag(SafeFileName.Buffer, TAG_STRING);
- _SEH2_YIELD(return 0);
- }
- _SEH2_END;
-
- SafeFileName.Buffer[SafeFileName.Length / sizeof(WCHAR)] = UNICODE_NULL;
- Ret = IntGdiAddFontResource(&SafeFileName, fl);
-
- ExFreePoolWithTag(SafeFileName.Buffer, TAG_STRING);
- return Ret;
-}
-
-HANDLE
-APIENTRY
-NtGdiAddFontMemResourceEx(
- IN PVOID pvBuffer,
- IN DWORD cjBuffer,
- IN DESIGNVECTOR *pdv,
- IN ULONG cjDV,
- OUT DWORD *pNumFonts)
-{
- _SEH2_VOLATILE PVOID Buffer = NULL;
- HANDLE Ret;
- DWORD NumFonts = 0;
-
- DPRINT("NtGdiAddFontMemResourceEx\n");
- DBG_UNREFERENCED_PARAMETER(pdv);
- DBG_UNREFERENCED_PARAMETER(cjDV);
-
- if (!pvBuffer || !cjBuffer)
- return NULL;
-
- _SEH2_TRY
- {
- ProbeForRead(pvBuffer, cjBuffer, sizeof(BYTE));
- Buffer = ExAllocatePoolWithQuotaTag(PagedPool, cjBuffer, TAG_FONT);
- RtlCopyMemory(Buffer, pvBuffer, cjBuffer);
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- if (Buffer != NULL)
- {
- ExFreePoolWithTag(Buffer, TAG_FONT);
- }
- _SEH2_YIELD(return NULL);
- }
- _SEH2_END;
-
- Ret = IntGdiAddFontMemResource(Buffer, cjBuffer, &NumFonts);
- ExFreePoolWithTag(Buffer, TAG_FONT);
-
- _SEH2_TRY
- {
- ProbeForWrite(pNumFonts, sizeof(NumFonts), 1);
- *pNumFonts = NumFonts;
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- /* Leak it? */
- _SEH2_YIELD(return NULL);
- }
- _SEH2_END;
-
-
- return Ret;
-}
-
-
-BOOL
-APIENTRY
-NtGdiRemoveFontMemResourceEx(
- IN HANDLE hMMFont)
-{
- return IntGdiRemoveFontMemResource(hMMFont);
-}
-
-
- /*
- * @unimplemented
- */
-DWORD
-APIENTRY
-NtGdiGetCharacterPlacementW(
- IN HDC hdc,
- IN LPWSTR pwsz,
- IN INT nCount,
- IN INT nMaxExtent,
- IN OUT LPGCP_RESULTSW pgcpw,
- IN DWORD dwFlags)
-{
- UNIMPLEMENTED;
- return 0;
-#if 0
- return GreGetCharacterPlacementW( hdc,
- pwsz,
- nCount,
- nMaxExtent,
- pgcpw,
- dwFlags);
-#endif
-}
-
-DWORD
-APIENTRY
-NtGdiGetFontData(
- HDC hDC,
- DWORD Table,
- DWORD Offset,
- LPVOID Buffer,
- DWORD Size)
-{
- PDC Dc;
- PDC_ATTR pdcattr;
- HFONT hFont;
- PTEXTOBJ TextObj;
- PFONTGDI FontGdi;
- DWORD Result = GDI_ERROR;
- NTSTATUS Status = STATUS_SUCCESS;
-
- if (Buffer && Size)
- {
- _SEH2_TRY
- {
- ProbeForRead(Buffer, Size, 1);
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- Status = _SEH2_GetExceptionCode();
- }
- _SEH2_END
- }
-
- if (!NT_SUCCESS(Status)) return Result;
-
- Dc = DC_LockDc(hDC);
- if (Dc == NULL)
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return GDI_ERROR;
- }
- pdcattr = Dc->pdcattr;
-
- hFont = pdcattr->hlfntNew;
- TextObj = RealizeFontInit(hFont);
- DC_UnlockDc(Dc);
-
- if (TextObj == NULL)
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return GDI_ERROR;
- }
-
- FontGdi = ObjToGDI(TextObj->Font, FONT);
-
- Result = ftGdiGetFontData(FontGdi, Table, Offset, Buffer, Size);
-
- TEXTOBJ_UnlockText(TextObj);
-
- return Result;
-}
-
- /*
- * @implemented
- */
-DWORD
-APIENTRY
-NtGdiGetFontUnicodeRanges(
- IN HDC hdc,
- OUT OPTIONAL LPGLYPHSET pgs)
-{
- PDC pDc;
- PDC_ATTR pdcattr;
- HFONT hFont;
- PTEXTOBJ TextObj;
- PFONTGDI FontGdi;
- DWORD Size = 0;
- PGLYPHSET pgsSafe;
- NTSTATUS Status = STATUS_SUCCESS;
-
- pDc = DC_LockDc(hdc);
- if (!pDc)
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return 0;
- }
-
- pdcattr = pDc->pdcattr;
-
- hFont = pdcattr->hlfntNew;
- TextObj = RealizeFontInit(hFont);
-
- if ( TextObj == NULL)
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- goto Exit;
- }
- FontGdi = ObjToGDI(TextObj->Font, FONT);
-
- Size = ftGetFontUnicodeRanges( FontGdi, NULL);
-
- if (Size && pgs)
- {
- pgsSafe = ExAllocatePoolWithTag(PagedPool, Size, GDITAG_TEXT);
- if (!pgsSafe)
- {
- EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
- Size = 0;
- goto Exit;
- }
-
- Size = ftGetFontUnicodeRanges( FontGdi, pgsSafe);
-
- if (Size)
- {
- _SEH2_TRY
- {
- ProbeForWrite(pgs, Size, 1);
- RtlCopyMemory(pgs, pgsSafe, Size);
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- Status = _SEH2_GetExceptionCode();
- }
- _SEH2_END
-
- if (!NT_SUCCESS(Status)) Size = 0;
- }
- ExFreePoolWithTag(pgsSafe, GDITAG_TEXT);
- }
-Exit:
- TEXTOBJ_UnlockText(TextObj);
- DC_UnlockDc(pDc);
- return Size;
-}
-
-ULONG
-APIENTRY
-NtGdiGetGlyphOutline(
- IN HDC hdc,
- IN WCHAR wch,
- IN UINT iFormat,
- OUT LPGLYPHMETRICS pgm,
- IN ULONG cjBuf,
- OUT OPTIONAL PVOID UnsafeBuf,
- IN LPMAT2 pmat2,
- IN BOOL bIgnoreRotation)
-{
- ULONG Ret = GDI_ERROR;
- PDC dc;
- PVOID pvBuf = NULL;
- GLYPHMETRICS gm;
- NTSTATUS Status = STATUS_SUCCESS;
-
- dc = DC_LockDc(hdc);
- if (!dc)
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return GDI_ERROR;
- }
-
- if (UnsafeBuf && cjBuf)
- {
- pvBuf = ExAllocatePoolWithTag(PagedPool, cjBuf, GDITAG_TEXT);
- if (!pvBuf)
- {
- EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
- goto Exit;
- }
- }
-
- Ret = ftGdiGetGlyphOutline( dc,
- wch,
- iFormat,
- pgm ? &gm : NULL,
- cjBuf,
- pvBuf,
- pmat2,
- bIgnoreRotation);
-
- if (pvBuf)
- {
- _SEH2_TRY
- {
- ProbeForWrite(UnsafeBuf, cjBuf, 1);
- RtlCopyMemory(UnsafeBuf, pvBuf, cjBuf);
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- Status = _SEH2_GetExceptionCode();
- }
- _SEH2_END
-
- ExFreePoolWithTag(pvBuf, GDITAG_TEXT);
- }
-
- if (pgm)
- {
- _SEH2_TRY
- {
- ProbeForWrite(pgm, sizeof(GLYPHMETRICS), 1);
- RtlCopyMemory(pgm, &gm, sizeof(GLYPHMETRICS));
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- Status = _SEH2_GetExceptionCode();
- }
- _SEH2_END
- }
-
- if (! NT_SUCCESS(Status))
- {
- EngSetLastError(ERROR_INVALID_PARAMETER);
- Ret = GDI_ERROR;
- }
-
-Exit:
- DC_UnlockDc(dc);
- return Ret;
-}
-
-DWORD
-APIENTRY
-NtGdiGetKerningPairs(HDC hDC,
- ULONG NumPairs,
- LPKERNINGPAIR krnpair)
-{
- PDC dc;
- PDC_ATTR pdcattr;
- PTEXTOBJ TextObj;
- PFONTGDI FontGDI;
- DWORD Count;
- KERNINGPAIR *pKP;
- NTSTATUS Status = STATUS_SUCCESS;
-
- dc = DC_LockDc(hDC);
- if (!dc)
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return 0;
- }
-
- pdcattr = dc->pdcattr;
- TextObj = RealizeFontInit(pdcattr->hlfntNew);
- DC_UnlockDc(dc);
-
- if (!TextObj)
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return 0;
- }
-
- FontGDI = ObjToGDI(TextObj->Font, FONT);
- TEXTOBJ_UnlockText(TextObj);
-
- Count = ftGdiGetKerningPairs(FontGDI,0,NULL);
-
- if ( Count && krnpair )
- {
- if (Count > NumPairs)
- {
- EngSetLastError(ERROR_INSUFFICIENT_BUFFER);
- return 0;
- }
- pKP = ExAllocatePoolWithTag(PagedPool, Count * sizeof(KERNINGPAIR), GDITAG_TEXT);
- if (!pKP)
- {
- EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
- return 0;
- }
- ftGdiGetKerningPairs(FontGDI,Count,pKP);
- _SEH2_TRY
- {
- ProbeForWrite(krnpair, Count * sizeof(KERNINGPAIR), 1);
- RtlCopyMemory(krnpair, pKP, Count * sizeof(KERNINGPAIR));
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- Status = _SEH2_GetExceptionCode();
- }
- _SEH2_END
- if (!NT_SUCCESS(Status))
- {
- EngSetLastError(ERROR_INVALID_PARAMETER);
- Count = 0;
- }
- ExFreePoolWithTag(pKP,GDITAG_TEXT);
- }
- return Count;
-}
-
-/*
- From "Undocumented Windows 2000 Secrets" Appendix B, Table B-2, page
- 472, this is NtGdiGetOutlineTextMetricsInternalW.
- */
-ULONG
-APIENTRY
-NtGdiGetOutlineTextMetricsInternalW (HDC hDC,
- ULONG Data,
- OUTLINETEXTMETRICW *otm,
- TMDIFF *Tmd)
-{
- PDC dc;
- PDC_ATTR pdcattr;
- PTEXTOBJ TextObj;
- PFONTGDI FontGDI;
- HFONT hFont = 0;
- ULONG Size;
- OUTLINETEXTMETRICW *potm;
- NTSTATUS Status = STATUS_SUCCESS;
-
- dc = DC_LockDc(hDC);
- if (!dc)
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return 0;
- }
- pdcattr = dc->pdcattr;
- hFont = pdcattr->hlfntNew;
- TextObj = RealizeFontInit(hFont);
- DC_UnlockDc(dc);
- if (!TextObj)
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return 0;
- }
- FontGDI = ObjToGDI(TextObj->Font, FONT);
- TextIntUpdateSize(dc, TextObj, FontGDI, TRUE);
- TEXTOBJ_UnlockText(TextObj);
- Size = IntGetOutlineTextMetrics(FontGDI, 0, NULL);
- if (!otm) return Size;
- if (Size > Data)
- {
- EngSetLastError(ERROR_INSUFFICIENT_BUFFER);
- return 0;
- }
- potm = ExAllocatePoolWithTag(PagedPool, Size, GDITAG_TEXT);
- if (!potm)
- {
- EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
- return 0;
- }
- IntGetOutlineTextMetrics(FontGDI, Size, potm);
- if (otm)
- {
- _SEH2_TRY
- {
- ProbeForWrite(otm, Size, 1);
- RtlCopyMemory(otm, potm, Size);
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- Status = _SEH2_GetExceptionCode();
- }
- _SEH2_END
-
- if (!NT_SUCCESS(Status))
- {
- EngSetLastError(ERROR_INVALID_PARAMETER);
- Size = 0;
- }
- }
- ExFreePoolWithTag(potm,GDITAG_TEXT);
- return Size;
-}
-
-W32KAPI
-BOOL
-APIENTRY
-NtGdiGetFontResourceInfoInternalW(
- IN LPWSTR pwszFiles,
- IN ULONG cwc,
- IN ULONG cFiles,
- IN UINT cjIn,
- IN OUT LPDWORD pdwBytes,
- OUT LPVOID pvBuf,
- IN DWORD dwType)
-{
- NTSTATUS Status = STATUS_SUCCESS;
- DWORD dwBytes, dwBytesRequested;
- UNICODE_STRING SafeFileNames;
- BOOL bRet = FALSE;
- ULONG cbStringSize;
- LPVOID Buffer;
-
- /* FIXME: Handle cFiles > 0 */
-
- /* Check for valid dwType values */
- if (dwType > 5)
- {
- EngSetLastError(ERROR_INVALID_PARAMETER);
- return FALSE;
- }
-
- /* Allocate a safe unicode string buffer */
- cbStringSize = cwc * sizeof(WCHAR);
- SafeFileNames.MaximumLength = SafeFileNames.Length = (USHORT)cbStringSize - sizeof(WCHAR);
- SafeFileNames.Buffer = ExAllocatePoolWithTag(PagedPool,
- cbStringSize,
- TAG_USTR);
- if (!SafeFileNames.Buffer)
- {
- EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
- return FALSE;
- }
- RtlZeroMemory(SafeFileNames.Buffer, SafeFileNames.MaximumLength);
-
- /* Check buffers and copy pwszFiles to safe unicode string */
- _SEH2_TRY
- {
- ProbeForRead(pwszFiles, cbStringSize, 1);
- ProbeForWrite(pdwBytes, sizeof(DWORD), 1);
- if (pvBuf)
- ProbeForWrite(pvBuf, cjIn, 1);
-
- dwBytes = *pdwBytes;
- dwBytesRequested = dwBytes;
-
- RtlCopyMemory(SafeFileNames.Buffer, pwszFiles, cbStringSize);
- if (dwBytes > 0)
- {
- Buffer = ExAllocatePoolWithTag(PagedPool, dwBytes, TAG_FINF);
- }
- else
- {
- Buffer = ExAllocatePoolWithTag(PagedPool, sizeof(DWORD), TAG_FINF);
- }
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- Status = _SEH2_GetExceptionCode();
- }
- _SEH2_END
-
- if(!NT_SUCCESS(Status))
- {
- SetLastNtError(Status);
- /* Free the string buffer for the safe filename */
- ExFreePoolWithTag(SafeFileNames.Buffer, TAG_USTR);
- return FALSE;
- }
-
- /* Do the actual call */
- bRet = IntGdiGetFontResourceInfo(&SafeFileNames,
- (pvBuf ? Buffer : NULL),
- &dwBytes, dwType);
-
- /* Check if succeeded */
- if (bRet)
- {
- /* Copy the data back to caller */
- _SEH2_TRY
- {
- /* Buffers are already probed */
- if (pvBuf && dwBytesRequested > 0)
- RtlCopyMemory(pvBuf, Buffer, min(dwBytesRequested, dwBytes));
- *pdwBytes = dwBytes;
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- Status = _SEH2_GetExceptionCode();
- }
- _SEH2_END
-
- if(!NT_SUCCESS(Status))
- {
- SetLastNtError(Status);
- bRet = FALSE;
- }
- }
-
- ExFreePoolWithTag(Buffer, TAG_FINF);
- /* Free the string for the safe filenames */
- ExFreePoolWithTag(SafeFileNames.Buffer, TAG_USTR);
-
- return bRet;
-}
-
- /*
- * @unimplemented
- */
-BOOL
-APIENTRY
-NtGdiGetRealizationInfo(
- IN HDC hdc,
- OUT PREALIZATION_INFO pri,
- IN HFONT hf)
-{
- PDC pDc;
- PTEXTOBJ pTextObj;
- PFONTGDI pFontGdi;
- PDC_ATTR pdcattr;
- BOOL Ret = FALSE;
- INT i = 0;
- REALIZATION_INFO ri;
-
- pDc = DC_LockDc(hdc);
- if (!pDc)
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return 0;
- }
- pdcattr = pDc->pdcattr;
- pTextObj = RealizeFontInit(pdcattr->hlfntNew);
- pFontGdi = ObjToGDI(pTextObj->Font, FONT);
- TEXTOBJ_UnlockText(pTextObj);
- DC_UnlockDc(pDc);
-
- Ret = ftGdiRealizationInfo(pFontGdi, &ri);
- if (Ret)
- {
- if (pri)
- {
- NTSTATUS Status = STATUS_SUCCESS;
- _SEH2_TRY
- {
- ProbeForWrite(pri, sizeof(REALIZATION_INFO), 1);
- RtlCopyMemory(pri, &ri, sizeof(REALIZATION_INFO));
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- Status = _SEH2_GetExceptionCode();
- }
- _SEH2_END
-
- if(!NT_SUCCESS(Status))
- {
- SetLastNtError(Status);
- return FALSE;
- }
- }
- do
- {
- if (GdiHandleTable->cfPublic[i].hf == hf)
- {
- GdiHandleTable->cfPublic[i].iTechnology = ri.iTechnology;
- GdiHandleTable->cfPublic[i].iUniq = ri.iUniq;
- GdiHandleTable->cfPublic[i].dwUnknown = ri.dwUnknown;
- GdiHandleTable->cfPublic[i].dwCFCount = GdiHandleTable->dwCFCount;
- GdiHandleTable->cfPublic[i].fl |= CFONT_REALIZATION;
- }
- i++;
- }
- while ( i < GDI_CFONT_MAX );
- }
- return Ret;
-}
-
-
-HFONT
-APIENTRY
-HfontCreate(
- IN PENUMLOGFONTEXDVW pelfw,
- IN ULONG cjElfw,
- IN LFTYPE lft,
- IN FLONG fl,
- IN PVOID pvCliData )
-{
- HFONT hNewFont;
- PLFONT plfont;
-
- if (!pelfw)
- {
- return NULL;
- }
-
- plfont = LFONT_AllocFontWithHandle();
- if (!plfont)
- {
- return NULL;
- }
- hNewFont = plfont->BaseObject.hHmgr;
-
- plfont->lft = lft;
- plfont->fl = fl;
- RtlCopyMemory (&plfont->logfont, pelfw, sizeof(ENUMLOGFONTEXDVW));
- ExInitializePushLock(&plfont->lock);
-
- if (pelfw->elfEnumLogfontEx.elfLogFont.lfEscapement !=
- pelfw->elfEnumLogfontEx.elfLogFont.lfOrientation)
- {
- /* This should really depend on whether GM_ADVANCED is set */
- plfont->logfont.elfEnumLogfontEx.elfLogFont.lfOrientation =
- plfont->logfont.elfEnumLogfontEx.elfLogFont.lfEscapement;
- }
- LFONT_UnlockFont(plfont);
-
- if (pvCliData && hNewFont)
- {
- // FIXME: Use GDIOBJ_InsertUserData
- KeEnterCriticalRegion();
- {
- INT Index = GDI_HANDLE_GET_INDEX((HGDIOBJ)hNewFont);
- PGDI_TABLE_ENTRY Entry = &GdiHandleTable->Entries[Index];
- Entry->UserData = pvCliData;
- }
- KeLeaveCriticalRegion();
- }
-
- return hNewFont;
-}
-
-
-HFONT
-APIENTRY
-NtGdiHfontCreate(
- IN PENUMLOGFONTEXDVW pelfw,
- IN ULONG cjElfw,
- IN LFTYPE lft,
- IN FLONG fl,
- IN PVOID pvCliData )
-{
- ENUMLOGFONTEXDVW SafeLogfont;
- NTSTATUS Status = STATUS_SUCCESS;
-
- /* Silence GCC warnings */
- SafeLogfont.elfEnumLogfontEx.elfLogFont.lfEscapement = 0;
- SafeLogfont.elfEnumLogfontEx.elfLogFont.lfOrientation = 0;
-
- if (!pelfw)
- {
- return NULL;
- }
-
- _SEH2_TRY
- {
- ProbeForRead(pelfw, sizeof(ENUMLOGFONTEXDVW), 1);
- RtlCopyMemory(&SafeLogfont, pelfw, sizeof(ENUMLOGFONTEXDVW));
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- Status = _SEH2_GetExceptionCode();
- }
- _SEH2_END
-
- if (!NT_SUCCESS(Status))
- {
- return NULL;
- }
-
- return HfontCreate(&SafeLogfont, cjElfw, lft, fl, pvCliData);
-}
-
-
-/* EOF */
projects / reactos.git / blobdiff