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/*
* Implementation of Uniscribe Script Processor (usp10.dll)
*
* Copyright 2005 Steven Edwards for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Notes:
* Uniscribe allows for processing of complex scripts such as joining
* and filtering characters and bi-directional text with custom line breaks.
*/
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "usp10.h"
#include "wine/debug.h"
/**
* some documentation here:
* http://www.microsoft.com/typography/developers/uniscribe/uniscribe.htm
*/
WINE_DEFAULT_DEBUG_CHANNEL(uniscribe);
#define MAX_SCRIPTS 8
/* Set up a default for ScriptGetProperties */
static const SCRIPT_PROPERTIES Default_Script_0 = {0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0};
static const SCRIPT_PROPERTIES Default_Script_1 = {0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0};
static const SCRIPT_PROPERTIES Default_Script_2 = {0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0};
static const SCRIPT_PROPERTIES Default_Script_3 = {9, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0};
static const SCRIPT_PROPERTIES Default_Script_4 = {9, 1, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0};
static const SCRIPT_PROPERTIES Default_Script_5 = {9, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 1, 0, 0};
static const SCRIPT_PROPERTIES Default_Script_6 = {9, 1, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 1, 0, 0};
static const SCRIPT_PROPERTIES Default_Script_7 = {8, 0, 0, 0, 0, 161, 0, 0,
0, 0, 0, 0, 0, 0, 0};
static const SCRIPT_PROPERTIES *Global_Script[MAX_SCRIPTS] =
{&Default_Script_0,
&Default_Script_1,
&Default_Script_2,
&Default_Script_3,
&Default_Script_4,
&Default_Script_5,
&Default_Script_6,
&Default_Script_7};
typedef struct scriptcache {
HDC hdc;
} Scriptcache;
/***********************************************************************
* DllMain
*
*/
BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
{
switch(fdwReason) {
case DLL_PROCESS_ATTACH:
DisableThreadLibraryCalls(hInstDLL);
break;
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}
/***********************************************************************
* ScriptFreeCache (USP10.@)
*
*/
HRESULT WINAPI ScriptFreeCache(SCRIPT_CACHE *psc)
{
TRACE("%p\n", psc);
if (psc) {
HeapFree ( GetProcessHeap(), 0, *psc);
*psc = NULL;
}
return 0;
}
/***********************************************************************
* ScriptGetProperties (USP10.@)
*
*/
HRESULT WINAPI ScriptGetProperties(const SCRIPT_PROPERTIES ***ppSp, int *piNumScripts)
{
TRACE("%p,%p\n", ppSp, piNumScripts);
if (!ppSp && !piNumScripts) return E_INVALIDARG;
/* Set up a sensible default and intialise pointers */
if (piNumScripts) *piNumScripts = MAX_SCRIPTS;
if (ppSp) *ppSp = Global_Script;
TRACE("ppSp:%p, *ppSp:%p, **ppSp:%p, %d\n",
ppSp, ppSp ? *ppSp : NULL, (ppSp && *ppSp) ? **ppSp : NULL,
piNumScripts ? *piNumScripts : -1);
return 0;
}
/***********************************************************************
* ScriptGetFontProperties (USP10.@)
*
*/
HRESULT WINAPI ScriptGetFontProperties(HDC hdc, SCRIPT_CACHE *psc, SCRIPT_FONTPROPERTIES *sfp)
{
HDC phdc;
Scriptcache *pScriptcache;
TEXTMETRICW ptm;
TRACE("%p,%p,%p\n", hdc, psc, sfp);
if (!psc || !sfp)
return E_INVALIDARG;
if (!hdc && !*psc) {
TRACE("No Script_Cache (psc) and no hdc. Ask for one. Hdc=%p, psc=%p\n", hdc, *psc);
return E_PENDING;
} else
if (hdc && !*psc) {
pScriptcache = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(Scriptcache) );
pScriptcache->hdc = (HDC) hdc;
phdc = hdc;
*psc = (Scriptcache *) pScriptcache;
} else
if (*psc) {
pScriptcache = (Scriptcache *) *psc;
phdc = pScriptcache->hdc;
}
if (sfp->cBytes != sizeof(SCRIPT_FONTPROPERTIES))
return E_INVALIDARG;
/* return something sensible? */
sfp->wgBlank = 0;
if (GetTextMetricsW(phdc, &ptm))
sfp->wgDefault = ptm.tmDefaultChar;
else
sfp->wgDefault = 0;
sfp->wgInvalid = 0;
sfp->wgKashida = 0xffff;
sfp->iKashidaWidth = 0;
return 0;
}
/***********************************************************************
* ScriptRecordDigitSubstitution (USP10.@)
*
*/
HRESULT WINAPI ScriptRecordDigitSubstitution(LCID Locale,SCRIPT_DIGITSUBSTITUTE *psds)
{
FIXME("%ld,%p\n",Locale,psds);
return E_NOTIMPL;
}
/***********************************************************************
* ScriptApplyDigitSubstitution (USP10.@)
*
*/
HRESULT WINAPI ScriptApplyDigitSubstitution(const SCRIPT_DIGITSUBSTITUTE* psds,
SCRIPT_CONTROL* psc, SCRIPT_STATE* pss)
{
FIXME("%p,%p,%p\n",psds,psc,pss);
return E_NOTIMPL;
}
/***********************************************************************
* ScriptItemize (USP10.@)
*
*/
HRESULT WINAPI ScriptItemize(const WCHAR *pwcInChars, int cInChars, int cMaxItems,
const SCRIPT_CONTROL *psControl, const SCRIPT_STATE *psState,
SCRIPT_ITEM *pItems, int *pcItems)
{
/* This implementation currently treats the entire string represented in
* pwcInChars as a single entity. Hence pcItems will be set to 1. */
FIXME("%s,%d,%d,%p,%p,%p,%p: semi-stub\n", debugstr_wn(pwcInChars, cInChars), cInChars, cMaxItems,
psControl, psState, pItems, pcItems);
if (!pwcInChars || !cInChars || !pItems || cMaxItems < 2)
return E_INVALIDARG;
/* Set a sensible default */
/* Set SCRIPT_ITEM */
pItems[0].iCharPos = 0;
/* Set the SCRIPT_ANALYSIS */
pItems[0].a.eScript = SCRIPT_UNDEFINED;
pItems[0].a.fRTL = 0;
pItems[0].a.fLayoutRTL = 0;
pItems[0].a.fLinkBefore = 0;
pItems[0].a.fLinkAfter = 0;
pItems[0].a.fLogicalOrder = 0;
pItems[0].a.fNoGlyphIndex = 0;
/* set the SCRIPT_STATE */
pItems[0].a.s.uBidiLevel = 0;
pItems[0].a.s.fOverrideDirection = 0;
pItems[0].a.s.fInhibitSymSwap = FALSE;
pItems[0].a.s.fCharShape = 0;
pItems[0].a.s.fDigitSubstitute = 0;
pItems[0].a.s.fInhibitLigate = 0;
pItems[0].a.s.fDisplayZWG = 0;
pItems[0].a.s.fArabicNumContext = 0;
pItems[0].a.s.fGcpClusters = 0;
pItems[0].a.s.fReserved = 0;
pItems[0].a.s.fEngineReserved = 0;
/* While not strickly necessary according to the spec, make sure the n+1
* item is set up to prevent random behaviour if the caller eroneously
* checks the n+1 structure */
pItems[1].a.eScript = 0;
pItems[1].a.fRTL = 0;
pItems[1].a.fLayoutRTL = 0;
pItems[1].a.fLinkBefore = 0;
pItems[1].a.fLinkAfter = 0;
pItems[1].a.fLogicalOrder = 0;
pItems[1].a.fNoGlyphIndex = 0;
/* set the SCRIPT_STATE */
pItems[1].a.s.uBidiLevel = 0;
pItems[1].a.s.fOverrideDirection = 0;
pItems[1].a.s.fInhibitSymSwap = FALSE;
pItems[1].a.s.fCharShape = 0;
pItems[1].a.s.fDigitSubstitute = 0;
pItems[1].a.s.fInhibitLigate = 0;
pItems[1].a.s.fDisplayZWG = 0;
pItems[1].a.s.fArabicNumContext = 0;
pItems[1].a.s.fGcpClusters = 0;
pItems[1].a.s.fReserved = 0;
pItems[1].a.s.fEngineReserved = 0;
/* Set one SCRIPT_STATE item being returned */
*pcItems = 1;
/* Set SCRIPT_ITEM */
pItems[1].iCharPos = cInChars - pItems[0].iCharPos ; /* the last + 1 item
contains the ptr to the lastchar */
TRACE("%s,%d,%d,%p,%p,%p,%p,%d\n", debugstr_wn(pwcInChars, cInChars), cInChars, cMaxItems,
psControl, psState, pItems, pcItems, *pcItems);
TRACE("Start Pos in string: %d, Stop Pos %d\n", pItems[0].iCharPos, pItems[1].iCharPos);
return 0;
}
/***********************************************************************
* ScriptStringAnalyse (USP10.@)
*
*/
HRESULT WINAPI ScriptStringAnalyse(HDC hdc,
const void *pString,
int cString,
int cGlyphs,
int iCharset,
DWORD dwFlags,
int iReqWidth,
SCRIPT_CONTROL *psControl,
SCRIPT_STATE *psState,
const int *piDx,
SCRIPT_TABDEF *pTabdef,
const BYTE *pbInClass,
SCRIPT_STRING_ANALYSIS *pssa)
{
FIXME("(%p,%p,%d,%d,%d,0x%lx,%d,%p,%p,%p,%p,%p,%p): stub\n",
hdc, pString, cString, cGlyphs, iCharset, dwFlags,
iReqWidth, psControl, psState, piDx, pTabdef, pbInClass, pssa);
if (1 > cString || NULL == pString) {
return E_INVALIDARG;
}
if ((dwFlags & SSA_GLYPHS) && NULL == hdc) {
return E_INVALIDARG;
}
return E_NOTIMPL;
}
/***********************************************************************
* ScriptStringFree (USP10.@)
*
*/
HRESULT WINAPI ScriptStringFree(SCRIPT_STRING_ANALYSIS *pssa) {
FIXME("(%p): stub\n",pssa);
return S_OK;
}
/***********************************************************************
* ScriptIsComplex (USP10.@)
*
*/
HRESULT WINAPI ScriptIsComplex(const WCHAR* pwcInChars, int cInChars, DWORD dwFlags) {
FIXME("(%s,%d,0x%lx): stub\n", debugstr_wn(pwcInChars, cInChars), cInChars, dwFlags);
return E_NOTIMPL;
}
/***********************************************************************
* ScriptShape (USP10.@)
*
*/
HRESULT WINAPI ScriptShape(HDC hdc, SCRIPT_CACHE *psc, const WCHAR *pwcChars,
int cChars, int cMaxGlyphs,
SCRIPT_ANALYSIS *psa, WORD *pwOutGlyphs, WORD *pwLogClust,
SCRIPT_VISATTR *psva, int *pcGlyphs)
{
/* Note SCRIPT_CACHE (*psc) appears to be a good place to save info that needs to be
* passed between functions. */
HDC phdc;
int cnt;
DWORD hr;
Scriptcache *pScriptcache;
*pcGlyphs = cChars;
FIXME("(%p, %p, %p, %d, %d, %p): semi-stub\n", hdc, psc, pwcChars,
cChars, cMaxGlyphs, psa);
if (psa) TRACE("psa values: %d, %d, %d, %d, %d, %d, %d\n", psa->eScript, psa->fRTL, psa->fLayoutRTL,
psa->fLinkBefore, psa->fLinkAfter,
psa->fLogicalOrder, psa->fNoGlyphIndex);
if (cChars > cMaxGlyphs) return E_OUTOFMEMORY;
if (!hdc && !*psc) {
TRACE("No Script_Cache (psc) and no hdc. Ask for one. Hdc=%p, psc=%p\n", hdc, *psc);
return E_PENDING;
} else
if (hdc && !*psc) {
pScriptcache = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(Scriptcache) );
pScriptcache->hdc = (HDC) hdc;
phdc = hdc;
*psc = (Scriptcache *) pScriptcache;
} else
if (*psc) {
pScriptcache = (Scriptcache *) *psc;
phdc = pScriptcache->hdc;
}
TRACE("Before: ");
for (cnt = 0; cnt < cChars; cnt++)
TRACE("%4x",pwcChars[cnt]);
TRACE("\n");
if (!psa->fNoGlyphIndex) { /* Glyph translate */
hr = GetGlyphIndicesW(phdc, pwcChars, cChars, pwOutGlyphs, 0);
TRACE("After: ");
for (cnt = 0; cnt < cChars; cnt++) {
TRACE("%04x",pwOutGlyphs[cnt]);
}
TRACE("\n");
}
else {
TRACE("After: ");
for (cnt = 0; cnt < cChars; cnt++) { /* no translate so set up */
pwOutGlyphs[cnt] = pwcChars[cnt]; /* copy in to out and */
TRACE("%04x",pwOutGlyphs[cnt]);
}
TRACE("\n");
}
/* Set up a valid SCRIPT_VISATTR and LogClust for each char in this run */
for (cnt = 0; cnt < cChars; cnt++) {
psva[cnt].uJustification = 2;
psva[cnt].fClusterStart = 1;
psva[cnt].fDiacritic = 0;
psva[cnt].fZeroWidth = 0;
pwLogClust[cnt] = cnt;
}
return 0;
}
/***********************************************************************
* ScriptPlace (USP10.@)
*
*/
HRESULT WINAPI ScriptPlace(HDC hdc, SCRIPT_CACHE *psc, const WORD *pwGlyphs,
int cGlyphs, const SCRIPT_VISATTR *psva,
SCRIPT_ANALYSIS *psa, int *piAdvance, GOFFSET *pGoffset, ABC *pABC )
{
HDC phdc;
int wcnt;
LPABC lpABC;
Scriptcache *pScriptcache;
FIXME("(%p, %p, %p, %s, %d, %p, %p, %p): semi-stub\n", hdc, psc, pwGlyphs,
debugstr_wn(pwGlyphs, cGlyphs),
cGlyphs, psva, psa,
piAdvance);
/* We need a valid hdc to do any of the font calls. The spec says that hdc is optional and
* psc will be used first. If psc and hdc are not specified E_PENDING is returned to get
* the caller to return the hdc. For convience, the hdc is cached in SCRIPT_CACHE. */
if (!hdc && !*psc) {
TRACE("No Script_Cache (psc) and no hdc. Ask for one. Hdc=%p, psc=%p\n", hdc, *psc);
return E_PENDING;
} else
if (hdc && !*psc) {
pScriptcache = HeapAlloc( GetProcessHeap(), 0, sizeof(Scriptcache) );
pScriptcache->hdc = hdc;
phdc = hdc;
*psc = pScriptcache;
} else
if (*psc) {
pScriptcache = *psc;
phdc = pScriptcache->hdc;
}
/* Here we need to calculate the width of the run unit. At this point the input string
* has been converted to glyphs and we till need to translate back to the original chars
* to get the correct ABC widths. */
lpABC = HeapAlloc(GetProcessHeap(), 0 , sizeof(ABC)*cGlyphs);
pABC->abcA = 0;
pABC->abcB = 0;
pABC->abcC = 0;
if (!GetCharABCWidthsI(phdc, 0, cGlyphs, (WORD *) pwGlyphs, lpABC ))
{
WARN("Could not get ABC values\n");
for (wcnt = 0; wcnt < cGlyphs; wcnt++) {
piAdvance[wcnt] = 0;
pGoffset[wcnt].du = 0;
pGoffset[wcnt].dv = 0;
}
}
else
{
for (wcnt = 0; wcnt < cGlyphs ; wcnt++) { /* add up the char lengths */
TRACE(" Glyph=%04x, abcA=%d, abcB=%d, abcC=%d wcnt=%d\n",
pwGlyphs[wcnt],
lpABC[wcnt].abcA,
lpABC[wcnt].abcB,
lpABC[wcnt].abcC, wcnt);
pABC->abcA += lpABC[wcnt].abcA;
pABC->abcB += lpABC[wcnt].abcB;
pABC->abcC += lpABC[wcnt].abcC;
piAdvance[wcnt] = lpABC[wcnt].abcA + lpABC[wcnt].abcB + lpABC[wcnt].abcC;
pGoffset[wcnt].du = 0;
pGoffset[wcnt].dv = 0;
}
}
TRACE("Total for run: abcA=%d, abcB=%d, abcC=%d\n", pABC->abcA, pABC->abcB, pABC->abcC);
HeapFree(GetProcessHeap(), 0, lpABC );
return 0;
}
/***********************************************************************
* ScriptGetCMap (USP10.@)
*
*/
HRESULT WINAPI ScriptGetCMap(HDC hdc, SCRIPT_CACHE *psc, const WCHAR *pwcInChars,
int cChars, DWORD dwFlags, WORD *pwOutGlyphs)
{
HDC phdc;
int cnt;
DWORD hr;
Scriptcache *pScriptcache;
FIXME("(%p,%p,%s,%d,0x%lx,%p): semi-stub\n", hdc, psc, debugstr_wn(pwcInChars,cChars),
cChars, dwFlags, pwOutGlyphs);
if (!psc || !pwcInChars || !pwOutGlyphs)
return E_INVALIDARG;
if (!hdc && !*psc) {
TRACE("No Script_Cache (psc) and no hdc. Ask for one. Hdc=%p, psc=%p\n", hdc, *psc);
return E_PENDING;
} else
if (hdc && !*psc) {
pScriptcache = HeapAlloc( GetProcessHeap(), 0, sizeof(Scriptcache) );
pScriptcache->hdc = hdc;
phdc = hdc;
*psc = pScriptcache;
} else
if (*psc) {
pScriptcache = *psc;
phdc = pScriptcache->hdc;
}
TRACE("Before: ");
for (cnt = 0; cnt < cChars; cnt++)
TRACE("%4x",pwcInChars[cnt]);
TRACE("\n");
hr = GetGlyphIndicesW(phdc, pwcInChars, cChars, pwOutGlyphs, 0);
TRACE("After: ");
for (cnt = 0; cnt < cChars; cnt++) {
TRACE("%04x",pwOutGlyphs[cnt]);
}
TRACE("\n");
return 0;
}
/***********************************************************************
* ScriptTextOut (USP10.@)
*
*/
HRESULT WINAPI ScriptTextOut(const HDC hdc, SCRIPT_CACHE *psc, int x, int y, UINT fuOptions,
const RECT *lprc, const SCRIPT_ANALYSIS *psa, const WCHAR *pwcReserved,
int iReserved, const WORD *pwGlyphs, int cGlyphs, const int *piAdvance,
const int *piJustify, const GOFFSET *pGoffset)
{
HDC phdc;
DWORD hr;
Scriptcache *pScriptcache;
TRACE ("(%p, %p, %d, %d, %04x, %p, %p, %p, %d, %p, %d, %p, %p, %p): stub\n",
hdc, psc, x, y, fuOptions, lprc, psa, pwcReserved, iReserved, pwGlyphs, cGlyphs,
piAdvance, piJustify, pGoffset);
if (!psc || !piAdvance || !psa || !pwGlyphs)
return E_INVALIDARG;
if (!hdc && !*psc) {
TRACE("No Script_Cache (psc) and no hdc. Ask for one. Hdc=%p, psc=%p\n", hdc, *psc);
return E_PENDING;
} else
if (hdc && !*psc) {
pScriptcache = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(Scriptcache) );
pScriptcache->hdc = hdc;
phdc = hdc;
*psc = pScriptcache;
} else
if (*psc) {
pScriptcache = *psc;
phdc = pScriptcache->hdc;
}
fuOptions &= ETO_CLIPPED + ETO_OPAQUE;
if (!psa->fNoGlyphIndex) /* Have Glyphs? */
fuOptions |= ETO_GLYPH_INDEX; /* Say don't do tranlastion to glyph */
hr = ExtTextOutW(phdc, x, y, fuOptions, lprc, pwGlyphs, cGlyphs, NULL);
if (hr) return S_OK;
else {
FIXME("ExtTextOut returned:=%ld\n", hr);
return hr;
}
}
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