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wine/dlls/usp10/usp10.c

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/*
* Implementation of Uniscribe Script Processor (usp10.dll)
*
* Copyright 2005 Steven Edwards for CodeWeavers
* Copyright 2006 Hans Leidekker
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 "winnls.h"
#include "usp10.h"
#include "wine/debug.h"
#include "wine/unicode.h"
/**
* some documentation here:
* http://www.microsoft.com/typography/developers/uniscribe/uniscribe.htm
*/
WINE_DEFAULT_DEBUG_CHANNEL(uniscribe);
static const SCRIPT_PROPERTIES props[] =
{
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 9, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 9, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 8, 0, 0, 0, 0, 161, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 25, 0, 0, 0, 0, 204, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 43, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 55, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 42, 0, 0, 0, 0, 163, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 9, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0 },
{ 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 18, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 18, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 9, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 13, 0, 1, 0, 1, 177, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 13, 0, 1, 0, 0, 177, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 1, 0, 1, 0, 0, 178, 0, 0, 0, 0, 0, 0, 1, 1, 0 },
{ 1, 1, 1, 0, 0, 178, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
{ 41, 1, 1, 0, 0, 178, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 32, 1, 1, 0, 0, 178, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 90, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0 },
{ 30, 0, 1, 1, 1, 222, 0, 0, 1, 0, 1, 0, 0, 0, 1 },
{ 30, 1, 1, 0, 0, 222, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 30, 0, 1, 0, 0, 222, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 57, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
{ 57, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 73, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
{ 73, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 69, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
{ 69, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 69, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 70, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
{ 70, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 71, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
{ 71, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 72, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
{ 72, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 74, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
{ 74, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 75, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
{ 75, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 76, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
{ 76, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 81, 0, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0 },
{ 81, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 84, 0, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0 },
{ 84, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 83, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
{ 83, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 85, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
{ 85, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 80, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 80, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 94, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 94, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 101, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 93, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 92, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 9, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 91, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 9, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0 },
{ 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
};
static const SCRIPT_PROPERTIES *script_props[] =
{
&props[0], &props[1], &props[2], &props[3],
&props[4], &props[5], &props[6], &props[7],
&props[8], &props[9], &props[11], &props[12],
&props[13], &props[14], &props[15], &props[16],
&props[17], &props[18], &props[19], &props[20],
&props[21], &props[22], &props[23], &props[24],
&props[25], &props[26], &props[27], &props[28],
&props[29], &props[30], &props[31], &props[32],
&props[33], &props[34], &props[35], &props[36],
&props[37], &props[38], &props[39], &props[40],
&props[41], &props[42], &props[43], &props[44],
&props[45], &props[46], &props[47], &props[48],
&props[49], &props[50], &props[51], &props[52],
&props[53], &props[54], &props[55], &props[56],
&props[57], &props[58], &props[59], &props[60],
&props[61], &props[62], &props[63], &props[64],
&props[65], &props[66], &props[67], &props[68],
&props[69], &props[70], &props[71], &props[72],
&props[73]
};
typedef struct {
HDC hdc;
LONG height;
WCHAR default_char;
} ScriptCache;
typedef struct {
int numGlyphs;
WORD* glyphs;
WORD* pwLogClust;
int* piAdvance;
SCRIPT_VISATTR* psva;
GOFFSET* pGoffset;
ABC* abc;
} StringGlyphs;
typedef struct {
BOOL invalid;
int clip_len;
ScriptCache *sc;
int cItems;
int cMaxGlyphs;
SCRIPT_ITEM* pItem;
int numItems;
StringGlyphs* glyphs;
SCRIPT_LOGATTR* logattrs;
SIZE* sz;
} StringAnalysis;
static inline void *usp_alloc(SIZE_T size)
{
return HeapAlloc(GetProcessHeap(), 0, size);
}
static inline void *usp_zero_alloc(SIZE_T size)
{
return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
}
static inline void *usp_zero_realloc(LPVOID mem, SIZE_T size)
{
return HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, mem, size);
}
static inline void usp_free(LPVOID mem)
{
HeapFree(GetProcessHeap(), 0, mem);
}
static HDC get_cache_hdc(SCRIPT_CACHE *psc)
{
return ((ScriptCache *)*psc)->hdc;
}
static WCHAR get_cache_default_char(SCRIPT_CACHE *psc)
{
return ((ScriptCache *)*psc)->default_char;
}
static LONG get_cache_height(SCRIPT_CACHE *psc)
{
return ((ScriptCache *)*psc)->height;
}
static HRESULT init_script_cache(const HDC hdc, ScriptCache *sc)
{
TEXTMETRICW metric;
if (!GetTextMetricsW(hdc, &metric)) return E_INVALIDARG;
sc->height = metric.tmHeight;
sc->default_char = metric.tmDefaultChar;
sc->hdc = hdc;
return S_OK;
}
static HRESULT get_script_cache(const HDC hdc, SCRIPT_CACHE *psc)
{
if (!psc) return E_INVALIDARG;
if (!*psc)
{
HRESULT ret;
ScriptCache *sc;
if (!hdc) return E_PENDING;
if (!(sc = usp_zero_alloc(sizeof(ScriptCache)))) return E_OUTOFMEMORY;
if ((ret = init_script_cache(hdc, sc)))
{
usp_free(sc);
return ret;
}
*psc = sc;
}
TRACE("<- %p\n", *psc);
return S_OK;
}
/***********************************************************************
* 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.@)
*
* Free a script cache.
*
* PARAMS
* psc [I/O] Script cache.
*
* RETURNS
* Success: S_OK
* Failure: Non-zero HRESULT value.
*/
HRESULT WINAPI ScriptFreeCache(SCRIPT_CACHE *psc)
{
TRACE("%p\n", psc);
if (psc)
{
usp_free(*psc);
*psc = NULL;
}
return S_OK;
}
/***********************************************************************
* ScriptGetProperties (USP10.@)
*
* Retrieve a list of script properties.
*
* PARAMS
* props [I] Pointer to an array of SCRIPT_PROPERTIES pointers.
* num [I] Pointer to the number of scripts.
*
* RETURNS
* Success: S_OK
* Failure: Non-zero HRESULT value.
*
* NOTES
* Behaviour matches WinXP.
*/
HRESULT WINAPI ScriptGetProperties(const SCRIPT_PROPERTIES ***props, int *num)
{
TRACE("(%p,%p)\n", props, num);
if (!props && !num) return E_INVALIDARG;
if (num) *num = sizeof(script_props)/sizeof(script_props[0]);
if (props) *props = script_props;
return S_OK;
}
/***********************************************************************
* ScriptGetFontProperties (USP10.@)
*
* Get information on special glyphs.
*
* PARAMS
* hdc [I] Device context.
* psc [I/O] Opaque pointer to a script cache.
* sfp [O] Font properties structure.
*/
HRESULT WINAPI ScriptGetFontProperties(HDC hdc, SCRIPT_CACHE *psc, SCRIPT_FONTPROPERTIES *sfp)
{
HRESULT hr;
TRACE("%p,%p,%p\n", hdc, psc, sfp);
if (!sfp) return E_INVALIDARG;
if ((hr = get_script_cache(hdc, psc))) return hr;
if (sfp->cBytes != sizeof(SCRIPT_FONTPROPERTIES))
return E_INVALIDARG;
/* return something sensible? */
sfp->wgBlank = 0;
sfp->wgDefault = get_cache_default_char(psc);
sfp->wgInvalid = 0;
sfp->wgKashida = 0xffff;
sfp->iKashidaWidth = 0;
return S_OK;
}
/***********************************************************************
* ScriptRecordDigitSubstitution (USP10.@)
*
* Record digit substitution settings for a given locale.
*
* PARAMS
* locale [I] Locale identifier.
* sds [I] Structure to record substitution settings.
*
* RETURNS
* Success: S_OK
* Failure: E_POINTER if sds is NULL, E_INVALIDARG otherwise.
*
* SEE ALSO
* http://blogs.msdn.com/michkap/archive/2006/02/22/536877.aspx
*/
HRESULT WINAPI ScriptRecordDigitSubstitution(LCID locale, SCRIPT_DIGITSUBSTITUTE *sds)
{
DWORD plgid, sub;
TRACE("0x%x, %p\n", locale, sds);
/* This implementation appears to be correct for all languages, but it's
* not clear if sds->DigitSubstitute is ever set to anything except
* CONTEXT or NONE in reality */
if (!sds) return E_POINTER;
locale = ConvertDefaultLocale(locale);
if (!IsValidLocale(locale, LCID_INSTALLED))
return E_INVALIDARG;
plgid = PRIMARYLANGID(LANGIDFROMLCID(locale));
sds->TraditionalDigitLanguage = plgid;
if (plgid == LANG_ARABIC || plgid == LANG_FARSI)
sds->NationalDigitLanguage = plgid;
else
sds->NationalDigitLanguage = LANG_ENGLISH;
if (!GetLocaleInfoW(locale, LOCALE_IDIGITSUBSTITUTION | LOCALE_RETURN_NUMBER,
(LPWSTR)&sub, sizeof(sub)/sizeof(WCHAR))) return E_INVALIDARG;
switch (sub)
{
case 0:
if (plgid == LANG_ARABIC || plgid == LANG_FARSI)
sds->DigitSubstitute = SCRIPT_DIGITSUBSTITUTE_CONTEXT;
else
sds->DigitSubstitute = SCRIPT_DIGITSUBSTITUTE_NONE;
break;
case 1:
sds->DigitSubstitute = SCRIPT_DIGITSUBSTITUTE_NONE;
break;
case 2:
sds->DigitSubstitute = SCRIPT_DIGITSUBSTITUTE_NATIONAL;
break;
default:
sds->DigitSubstitute = SCRIPT_DIGITSUBSTITUTE_TRADITIONAL;
break;
}
sds->dwReserved = 0;
return S_OK;
}
/***********************************************************************
* ScriptApplyDigitSubstitution (USP10.@)
*
* Apply digit substitution settings.
*
* PARAMS
* sds [I] Structure with recorded substitution settings.
* sc [I] Script control structure.
* ss [I] Script state structure.
*
* RETURNS
* Success: S_OK
* Failure: E_INVALIDARG if sds is invalid. Otherwise an HRESULT.
*/
HRESULT WINAPI ScriptApplyDigitSubstitution(const SCRIPT_DIGITSUBSTITUTE *sds,
SCRIPT_CONTROL *sc, SCRIPT_STATE *ss)
{
SCRIPT_DIGITSUBSTITUTE psds;
TRACE("%p, %p, %p\n", sds, sc, ss);
if (!sc || !ss) return E_POINTER;
if (!sds)
{
sds = &psds;
if (ScriptRecordDigitSubstitution(LOCALE_USER_DEFAULT, &psds) != S_OK)
return E_INVALIDARG;
}
sc->uDefaultLanguage = LANG_ENGLISH;
sc->fContextDigits = 0;
ss->fDigitSubstitute = 0;
switch (sds->DigitSubstitute) {
case SCRIPT_DIGITSUBSTITUTE_CONTEXT:
case SCRIPT_DIGITSUBSTITUTE_NATIONAL:
case SCRIPT_DIGITSUBSTITUTE_NONE:
case SCRIPT_DIGITSUBSTITUTE_TRADITIONAL:
return S_OK;
default:
return E_INVALIDARG;
}
}
/***********************************************************************
* ScriptItemize (USP10.@)
*
* Split a Unicode string into shapeable parts.
*
* PARAMS
* pwcInChars [I] String to split.
* cInChars [I] Number of characters in pwcInChars.
* cMaxItems [I] Maximum number of items to return.
* psControl [I] Pointer to a SCRIPT_CONTROL structure.
* psState [I] Pointer to a SCRIPT_STATE structure.
* pItems [O] Buffer to receive SCRIPT_ITEM structures.
* pcItems [O] Number of script items returned.
*
* RETURNS
* Success: S_OK
* Failure: Non-zero HRESULT value.
*/
HRESULT WINAPI ScriptItemize(const WCHAR *pwcInChars, int cInChars, int cMaxItems,
const SCRIPT_CONTROL *psControl, const SCRIPT_STATE *psState,
SCRIPT_ITEM *pItems, int *pcItems)
{
#define Numeric_start 0x0030
#define Numeric_stop 0x0039
#define Numeric_space 0x0020
#define Arabic_start 0x0600
#define Arabic_stop 0x06ff
#define Latin_start 0x0001
#define Latin_stop 0x024f
#define Script_Arabic 6
#define Script_Latin 1
#define Script_Numeric 5
int cnt = 0, index = 0;
int New_Script = SCRIPT_UNDEFINED;
TRACE("%s,%d,%d,%p,%p,%p,%p\n", debugstr_wn(pwcInChars, cInChars), cInChars, cMaxItems,
psControl, psState, pItems, pcItems);
if (!pwcInChars || !cInChars || !pItems || cMaxItems < 2)
return E_INVALIDARG;
pItems[index].iCharPos = 0;
memset(&pItems[index].a, 0, sizeof(SCRIPT_ANALYSIS));
if (pwcInChars[cnt] >= Numeric_start && pwcInChars[cnt] <= Numeric_stop)
pItems[index].a.eScript = Script_Numeric;
else
if (pwcInChars[cnt] >= Arabic_start && pwcInChars[cnt] <= Arabic_stop)
pItems[index].a.eScript = Script_Arabic;
else
if (pwcInChars[cnt] >= Latin_start && pwcInChars[cnt] <= Latin_stop)
pItems[index].a.eScript = Script_Latin;
if (pItems[index].a.eScript == Script_Arabic)
pItems[index].a.s.uBidiLevel = 1;
TRACE("New_Script=%d, eScript=%d index=%d cnt=%d iCharPos=%d\n",
New_Script, pItems[index].a.eScript, index, cnt,
pItems[index].iCharPos = cnt);
for (cnt=0; cnt < cInChars; cnt++)
{
if ((pwcInChars[cnt] >= Numeric_start && pwcInChars[cnt] <= Numeric_stop)
|| (New_Script == Script_Numeric && pwcInChars[cnt] == Numeric_space))
New_Script = Script_Numeric;
else
if ((pwcInChars[cnt] >= Arabic_start && pwcInChars[cnt] <= Arabic_stop)
|| (New_Script == Script_Arabic && pwcInChars[cnt] == Numeric_space))
New_Script = Script_Arabic;
else
if ((WCHAR) pwcInChars[cnt] >= Latin_start && (WCHAR) pwcInChars[cnt] <= Latin_stop)
New_Script = Script_Latin;
else
New_Script = SCRIPT_UNDEFINED;
if (New_Script != pItems[index].a.eScript)
{
TRACE("New_Script=%d, eScript=%d ", New_Script, pItems[index].a.eScript);
index++;
if (index+1 > cMaxItems)
return E_OUTOFMEMORY;
pItems[index].iCharPos = cnt;
memset(&pItems[index].a, 0, sizeof(SCRIPT_ANALYSIS));
if (New_Script == Script_Arabic)
pItems[index].a.s.uBidiLevel = 1;
pItems[index].a.eScript = New_Script;
if (New_Script == Script_Arabic)
pItems[index].a.s.uBidiLevel = 1;
TRACE("index=%d cnt=%d iCharPos=%d\n", index, cnt, pItems[index].iCharPos = cnt);
}
}
/* While not strictly necessary according to the spec, make sure the n+1
* item is set up to prevent random behaviour if the caller erroneously
* checks the n+1 structure */
memset(&pItems[index+1].a, 0, sizeof(SCRIPT_ANALYSIS));
TRACE("index=%d cnt=%d iCharPos=%d\n", index+1, cnt, pItems[index+1].iCharPos = cnt);
/* Set one SCRIPT_STATE item being returned */
*pcItems = index + 1;
/* Set SCRIPT_ITEM */
pItems[index+1].iCharPos = cnt; /* the last + 1 item
contains the ptr to the lastchar */
return S_OK;
}
/***********************************************************************
* 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)
{
HRESULT hr = E_OUTOFMEMORY;
StringAnalysis *analysis = NULL;
int i, num_items = 255;
TRACE("(%p,%p,%d,%d,%d,0x%x,%d,%p,%p,%p,%p,%p,%p)\n",
hdc, pString, cString, cGlyphs, iCharset, dwFlags, iReqWidth,
psControl, psState, piDx, pTabdef, pbInClass, pssa);
if (iCharset != -1)
{
FIXME("Only Unicode strings are supported\n");
return E_INVALIDARG;
}
if (cString < 1 || !pString) return E_INVALIDARG;
if ((dwFlags & SSA_GLYPHS) && !hdc) return E_PENDING;
if (!(analysis = usp_zero_alloc(sizeof(StringAnalysis)))) return E_OUTOFMEMORY;
if (!(analysis->pItem = usp_zero_alloc(num_items * sizeof(SCRIPT_ITEM) + 1))) goto error;
/* FIXME: handle clipping */
analysis->clip_len = cString;
hr = ScriptItemize(pString, cString, num_items, psControl, psState, analysis->pItem,
&analysis->numItems);
while (hr == E_OUTOFMEMORY)
{
SCRIPT_ITEM *tmp;
num_items *= 2;
if (!(tmp = usp_zero_realloc(analysis->pItem, num_items * sizeof(SCRIPT_ITEM) + 1)))
goto error;
analysis->pItem = tmp;
hr = ScriptItemize(pString, cString, num_items, psControl, psState, analysis->pItem,
&analysis->numItems);
}
if (hr) goto error;
if ((analysis->logattrs = usp_alloc(sizeof(SCRIPT_LOGATTR) * cString)))
ScriptBreak(pString, cString, (SCRIPT_STRING_ANALYSIS)analysis, analysis->logattrs);
else
goto error;
if (!(analysis->glyphs = usp_zero_alloc(sizeof(StringGlyphs) * analysis->numItems)))
goto error;
for (i = 0; i < analysis->numItems; i++)
{
SCRIPT_CACHE *sc = (SCRIPT_CACHE *)&analysis->sc;
int cChar = analysis->pItem[i+1].iCharPos - analysis->pItem[i].iCharPos;
int numGlyphs = 1.5 * cChar + 16;
WORD *glyphs = usp_zero_alloc(sizeof(WORD) * numGlyphs);
WORD *pwLogClust = usp_zero_alloc(sizeof(WORD) * cChar);
int *piAdvance = usp_zero_alloc(sizeof(int) * numGlyphs);
SCRIPT_VISATTR *psva = usp_zero_alloc(sizeof(SCRIPT_VISATTR) * cChar);
GOFFSET *pGoffset = usp_zero_alloc(sizeof(GOFFSET) * numGlyphs);
ABC *abc = usp_zero_alloc(sizeof(ABC));
int numGlyphsReturned;
/* FIXME: non unicode strings */
WCHAR* pStr = (WCHAR*)pString;
hr = ScriptShape(hdc, sc, &pStr[analysis->pItem[i].iCharPos],
cChar, numGlyphs, &analysis->pItem[i].a,
glyphs, pwLogClust, psva, &numGlyphsReturned);
hr = ScriptPlace(hdc, sc, glyphs, numGlyphsReturned, psva, &analysis->pItem[i].a,
piAdvance, pGoffset, abc);
analysis->glyphs[i].numGlyphs = numGlyphsReturned;
analysis->glyphs[i].glyphs = glyphs;
analysis->glyphs[i].pwLogClust = pwLogClust;
analysis->glyphs[i].piAdvance = piAdvance;
analysis->glyphs[i].psva = psva;
analysis->glyphs[i].pGoffset = pGoffset;
analysis->glyphs[i].abc = abc;
}
*pssa = analysis;
return S_OK;
error:
usp_free(analysis->glyphs);
usp_free(analysis->logattrs);
usp_free(analysis->pItem);
usp_free(analysis);
return hr;
}
/***********************************************************************
* ScriptStringOut (USP10.@)
*
* This function takes the output of ScriptStringAnalyse and joins the segments
* of glyphs and passes the resulting string to ScriptTextOut. ScriptStringOut
* only processes glyphs.
*
* Parameters:
* ssa [I] buffer to hold the analysed string components
* iX [I] X axis displacement for output
* iY [I] Y axis displacement for output
* uOptions [I] flags controling output processing
* prc [I] rectangle coordinates
* iMinSel [I] starting pos for substringing output string
* iMaxSel [I] ending pos for substringing output string
* fDisabled [I] controls text highlighting
*
* RETURNS
* Success: S_OK
* Failure: is the value returned by ScriptTextOut
*/
HRESULT WINAPI ScriptStringOut(SCRIPT_STRING_ANALYSIS ssa,
int iX,
int iY,
UINT uOptions,
const RECT *prc,
int iMinSel,
int iMaxSel,
BOOL fDisabled)
{
StringAnalysis *analysis;
WORD *glyphs;
int item, cnt, x;
HRESULT hr;
TRACE("(%p,%d,%d,0x%1x,%p,%d,%d,%d)\n",
ssa, iX, iY, uOptions, prc, iMinSel, iMaxSel, fDisabled);
if (!(analysis = ssa)) return E_INVALIDARG;
/*
* Get storage for the output buffer for the consolidated strings
*/
cnt = 0;
for (item = 0; item < analysis->numItems; item++)
{
cnt += analysis->glyphs[item].numGlyphs;
}
if (!(glyphs = usp_alloc(sizeof(WCHAR) * cnt))) return E_OUTOFMEMORY;
/*
* ScriptStringOut only processes glyphs hence set ETO_GLYPH_INDEX
*/
uOptions |= ETO_GLYPH_INDEX;
analysis->pItem[0].a.fNoGlyphIndex = FALSE; /* say that we have glyphs */
/*
* Copy the string items into the output buffer
*/
TRACE("numItems %d\n", analysis->numItems);
cnt = 0;
for (item = 0; item < analysis->numItems; item++)
{
memcpy(&glyphs[cnt], analysis->glyphs[item].glyphs,
sizeof(WCHAR) * analysis->glyphs[item].numGlyphs);
TRACE("Item %d, Glyphs %d ", item, analysis->glyphs[item].numGlyphs);
for (x = cnt; x < analysis->glyphs[item].numGlyphs + cnt; x ++)
TRACE("%04x", glyphs[x]);
TRACE("\n");
cnt += analysis->glyphs[item].numGlyphs; /* point to the end of the copied text */
}
hr = ScriptTextOut(analysis->sc->hdc, (SCRIPT_CACHE *)&analysis->sc, iX, iY,
uOptions, prc, &analysis->pItem->a, NULL, 0, glyphs, cnt,
analysis->glyphs->piAdvance, NULL, analysis->glyphs->pGoffset);
TRACE("ScriptTextOut hr=%08x\n", hr);
/*
* Free the output buffer and script cache
*/
usp_free(glyphs);
return hr;
}
/***********************************************************************
* ScriptStringCPtoX (USP10.@)
*
*/
HRESULT WINAPI ScriptStringCPtoX(SCRIPT_STRING_ANALYSIS ssa, int icp, BOOL fTrailing, int* pX)
{
int i, j;
int runningX = 0;
int runningCp = 0;
StringAnalysis* analysis = ssa;
TRACE("(%p), %d, %d, (%p)\n", ssa, icp, fTrailing, pX);
if (!ssa || !pX) return S_FALSE;
/* icp out of range */
if(icp < 0)
{
analysis->invalid = TRUE;
return E_INVALIDARG;
}
for(i=0; i<analysis->numItems; i++)
{
for(j=0; j<analysis->glyphs[i].numGlyphs; j++)
{
if(runningCp == icp && fTrailing == FALSE)
{
*pX = runningX;
return S_OK;
}
runningX += analysis->glyphs[i].piAdvance[j];
if(runningCp == icp && fTrailing == TRUE)
{
*pX = runningX;
return S_OK;
}
runningCp++;
}
}
/* icp out of range */
analysis->invalid = TRUE;
return E_INVALIDARG;
}
/***********************************************************************
* ScriptStringXtoCP (USP10.@)
*
*/
HRESULT WINAPI ScriptStringXtoCP(SCRIPT_STRING_ANALYSIS ssa, int iX, int* piCh, int* piTrailing)
{
StringAnalysis* analysis = ssa;
int i;
int j;
int runningX = 0;
int runningCp = 0;
int width;
TRACE("(%p), %d, (%p), (%p)\n", ssa, iX, piCh, piTrailing);
if (!ssa || !piCh || !piTrailing) return S_FALSE;
/* out of range */
if(iX < 0)
{
*piCh = -1;
*piTrailing = TRUE;
return S_OK;
}
for(i=0; i<analysis->numItems; i++)
{
for(j=0; j<analysis->glyphs[i].numGlyphs; j++)
{
width = analysis->glyphs[i].piAdvance[j];
if(iX < (runningX + width))
{
*piCh = runningCp;
if((iX - runningX) > width/2)
*piTrailing = TRUE;
else
*piTrailing = FALSE;
return S_OK;
}
runningX += width;
runningCp++;
}
}
/* out of range */
*piCh = analysis->pItem[analysis->numItems].iCharPos;
*piTrailing = FALSE;
return S_OK;
}
/***********************************************************************
* ScriptStringFree (USP10.@)
*
* Free a string analysis.
*
* PARAMS
* pssa [I] string analysis.
*
* RETURNS
* Success: S_OK
* Failure: Non-zero HRESULT value.
*/
HRESULT WINAPI ScriptStringFree(SCRIPT_STRING_ANALYSIS *pssa)
{
StringAnalysis* analysis;
BOOL invalid;
int i;
TRACE("(%p)\n", pssa);
if (!pssa || !(analysis = *pssa)) return E_INVALIDARG;
invalid = analysis->invalid;
for (i = 0; i < analysis->numItems; i++)
{
usp_free(analysis->glyphs[i].glyphs);
usp_free(analysis->glyphs[i].pwLogClust);
usp_free(analysis->glyphs[i].piAdvance);
usp_free(analysis->glyphs[i].psva);
usp_free(analysis->glyphs[i].pGoffset);
usp_free(analysis->glyphs[i].abc);
}
usp_free(analysis->glyphs);
usp_free(analysis->pItem);
usp_free(analysis->logattrs);
usp_free(analysis->sz);
usp_free(analysis);
if (invalid) return E_INVALIDARG;
return S_OK;
}
/***********************************************************************
* ScriptCPtoX (USP10.@)
*
*/
HRESULT WINAPI ScriptCPtoX(int iCP,
BOOL fTrailing,
int cChars,
int cGlyphs,
const WORD *pwLogClust,
const SCRIPT_VISATTR *psva,
const int *piAdvance,
const SCRIPT_ANALYSIS *psa,
int *piX)
{
int item;
int iPosX;
float fMaxPosX = 0;
TRACE("(%d,%d,%d,%d,%p,%p,%p,%p,%p)\n",
iCP, fTrailing, cChars, cGlyphs, pwLogClust, psva, piAdvance,
psa, piX);
for (item=0; item < cGlyphs; item++) /* total piAdvance */
fMaxPosX += piAdvance[item];
iPosX = (fMaxPosX/cGlyphs)*(iCP+fTrailing);
if (iPosX > fMaxPosX)
iPosX = fMaxPosX;
*piX = iPosX; /* Return something in range */
TRACE("*piX=%d\n", *piX);
return S_OK;
}
/***********************************************************************
* ScriptXtoCP (USP10.@)
*
*/
HRESULT WINAPI ScriptXtoCP(int iX,
int cChars,
int cGlyphs,
const WORD *pwLogClust,
const SCRIPT_VISATTR *psva,
const int *piAdvance,
const SCRIPT_ANALYSIS *psa,
int *piCP,
int *piTrailing)
{
int item;
int iPosX;
float fMaxPosX = 1;
float fAvePosX;
TRACE("(%d,%d,%d,%p,%p,%p,%p,%p,%p)\n",
iX, cChars, cGlyphs, pwLogClust, psva, piAdvance,
psa, piCP, piTrailing);
if (iX < 0) /* iX is before start of run */
{
*piCP = -1;
*piTrailing = TRUE;
return S_OK;
}
for (item=0; item < cGlyphs; item++) /* total piAdvance */
fMaxPosX += piAdvance[item];
if (iX >= fMaxPosX) /* iX too large */
{
*piCP = cChars;
*piTrailing = FALSE;
return S_OK;
}
fAvePosX = fMaxPosX / cGlyphs;
iPosX = fAvePosX;
for (item = 1; item < cGlyphs && iPosX < iX; item++)
iPosX += fAvePosX;
if (iPosX - iX > fAvePosX/2)
*piTrailing = 0;
else
*piTrailing = 1; /* yep we are over halfway */
*piCP = item -1; /* Return character position */
TRACE("*piCP=%d iPposX=%d\n", *piCP, iPosX);
return S_OK;
}
/***********************************************************************
* ScriptBreak (USP10.@)
*
* Retrieve line break information.
*
* PARAMS
* chars [I] Array of characters.
* sa [I] String analysis.
* la [I] Array of logical attribute structures.
*
* RETURNS
* Success: S_OK
* Failure: S_FALSE
*/
HRESULT WINAPI ScriptBreak(const WCHAR *chars, int count, const SCRIPT_ANALYSIS *sa, SCRIPT_LOGATTR *la)
{
unsigned int i;
TRACE("(%s, %d, %p, %p)\n", debugstr_wn(chars, count), count, sa, la);
if (!la) return S_FALSE;
for (i = 0; i < count; i++)
{
memset(&la[i], 0, sizeof(SCRIPT_LOGATTR));
/* FIXME: set the other flags */
la[i].fWhiteSpace = isspaceW(chars[i]);
la[i].fCharStop = 1;
}
return S_OK;
}
static const struct
{
WCHAR start;
WCHAR end;
DWORD flag;
}
complex_ranges[] =
{
{ 0, 0x0b, SIC_COMPLEX },
{ 0x0c, 0x0c, SIC_NEUTRAL },
{ 0x0d, 0x1f, SIC_COMPLEX },
{ 0x20, 0x2f, SIC_NEUTRAL },
{ 0x30, 0x39, SIC_ASCIIDIGIT },
{ 0x3a, 0x40, SIC_NEUTRAL },
{ 0x5b, 0x60, SIC_NEUTRAL },
{ 0x7b, 0x7e, SIC_NEUTRAL },
{ 0x7f, 0x9f, SIC_COMPLEX },
{ 0xa0, 0xa5, SIC_NEUTRAL },
{ 0xa7, 0xa8, SIC_NEUTRAL },
{ 0xab, 0xab, SIC_NEUTRAL },
{ 0xad, 0xad, SIC_NEUTRAL },
{ 0xaf, 0xaf, SIC_NEUTRAL },
{ 0xb0, 0xb1, SIC_NEUTRAL },
{ 0xb4, 0xb4, SIC_NEUTRAL },
{ 0xb6, 0xb8, SIC_NEUTRAL },
{ 0xbb, 0xbf, SIC_NEUTRAL },
{ 0xd7, 0xd7, SIC_NEUTRAL },
{ 0xf7, 0xf7, SIC_NEUTRAL },
{ 0x2b9, 0x2ba, SIC_NEUTRAL },
{ 0x2c2, 0x2cf, SIC_NEUTRAL },
{ 0x2d2, 0x2df, SIC_NEUTRAL },
{ 0x2e5, 0x2e9, SIC_COMPLEX },
{ 0x2ea, 0x2ed, SIC_NEUTRAL },
{ 0x300, 0x362, SIC_COMPLEX },
{ 0x530, 0x60b, SIC_COMPLEX },
{ 0x60c, 0x60d, SIC_NEUTRAL },
{ 0x60e, 0x669, SIC_COMPLEX },
{ 0x66a, 0x66a, SIC_NEUTRAL },
{ 0x66b, 0x6e8, SIC_COMPLEX },
{ 0x6e9, 0x6e9, SIC_NEUTRAL },
{ 0x6ea, 0x7bf, SIC_COMPLEX },
{ 0x900, 0x1360, SIC_COMPLEX },
{ 0x137d, 0x137f, SIC_COMPLEX },
{ 0x1680, 0x1680, SIC_NEUTRAL },
{ 0x1780, 0x18af, SIC_COMPLEX },
{ 0x2000, 0x200a, SIC_NEUTRAL },
{ 0x200b, 0x200f, SIC_COMPLEX },
{ 0x2010, 0x2016, SIC_NEUTRAL },
{ 0x2018, 0x2022, SIC_NEUTRAL },
{ 0x2024, 0x2028, SIC_NEUTRAL },
{ 0x2029, 0x202e, SIC_COMPLEX },
{ 0x202f, 0x2037, SIC_NEUTRAL },
{ 0x2039, 0x203c, SIC_NEUTRAL },
{ 0x2044, 0x2046, SIC_NEUTRAL },
{ 0x206a, 0x206f, SIC_COMPLEX },
{ 0x207a, 0x207e, SIC_NEUTRAL },
{ 0x208a, 0x20aa, SIC_NEUTRAL },
{ 0x20ac, 0x20cf, SIC_NEUTRAL },
{ 0x20d0, 0x20ff, SIC_COMPLEX },
{ 0x2103, 0x2103, SIC_NEUTRAL },
{ 0x2105, 0x2105, SIC_NEUTRAL },
{ 0x2109, 0x2109, SIC_NEUTRAL },
{ 0x2116, 0x2116, SIC_NEUTRAL },
{ 0x2121, 0x2122, SIC_NEUTRAL },
{ 0x212e, 0x212e, SIC_NEUTRAL },
{ 0x2153, 0x2154, SIC_NEUTRAL },
{ 0x215b, 0x215e, SIC_NEUTRAL },
{ 0x2190, 0x2199, SIC_NEUTRAL },
{ 0x21b8, 0x21b9, SIC_NEUTRAL },
{ 0x21d2, 0x21d2, SIC_NEUTRAL },
{ 0x21d4, 0x21d4, SIC_NEUTRAL },
{ 0x21e7, 0x21e7, SIC_NEUTRAL },
{ 0x2200, 0x2200, SIC_NEUTRAL },
{ 0x2202, 0x2203, SIC_NEUTRAL },
{ 0x2207, 0x2208, SIC_NEUTRAL },
{ 0x220b, 0x220b, SIC_NEUTRAL },
{ 0x220f, 0x220f, SIC_NEUTRAL },
{ 0x2211, 0x2213, SIC_NEUTRAL },
{ 0x2215, 0x2215, SIC_NEUTRAL },
{ 0x221a, 0x221a, SIC_NEUTRAL },
{ 0x221d, 0x2220, SIC_NEUTRAL },
{ 0x2223, 0x2223, SIC_NEUTRAL },
{ 0x2225, 0x2225, SIC_NEUTRAL },
{ 0x2227, 0x222c, SIC_NEUTRAL },
{ 0x222e, 0x222e, SIC_NEUTRAL },
{ 0x2234, 0x2237, SIC_NEUTRAL },
{ 0x223c, 0x223d, SIC_NEUTRAL },
{ 0x2248, 0x2248, SIC_NEUTRAL },
{ 0x224c, 0x224c, SIC_NEUTRAL },
{ 0x2252, 0x2252, SIC_NEUTRAL },
{ 0x2260, 0x2261, SIC_NEUTRAL },
{ 0x2264, 0x2267, SIC_NEUTRAL },
{ 0x226a, 0x226b, SIC_NEUTRAL },
{ 0x226e, 0x226f, SIC_NEUTRAL },
{ 0x2282, 0x2283, SIC_NEUTRAL },
{ 0x2286, 0x2287, SIC_NEUTRAL },
{ 0x2295, 0x2295, SIC_NEUTRAL },
{ 0x2299, 0x2299, SIC_NEUTRAL },
{ 0x22a5, 0x22a5, SIC_NEUTRAL },
{ 0x22bf, 0x22bf, SIC_NEUTRAL },
{ 0x2312, 0x2312, SIC_NEUTRAL },
{ 0x24ea, 0x24ea, SIC_COMPLEX },
{ 0x2500, 0x254b, SIC_NEUTRAL },
{ 0x2550, 0x256d, SIC_NEUTRAL },
{ 0x256e, 0x2574, SIC_NEUTRAL },
{ 0x2581, 0x258f, SIC_NEUTRAL },
{ 0x2592, 0x2595, SIC_NEUTRAL },
{ 0x25a0, 0x25a1, SIC_NEUTRAL },
{ 0x25a3, 0x25a9, SIC_NEUTRAL },
{ 0x25b2, 0x25b3, SIC_NEUTRAL },
{ 0x25b6, 0x25b7, SIC_NEUTRAL },
{ 0x25bc, 0x25bd, SIC_NEUTRAL },
{ 0x25c0, 0x25c1, SIC_NEUTRAL },
{ 0x25c6, 0x25c8, SIC_NEUTRAL },
{ 0x25cb, 0x25cb, SIC_NEUTRAL },
{ 0x25ce, 0x25d1, SIC_NEUTRAL },
{ 0x25e2, 0x25e5, SIC_NEUTRAL },
{ 0x25ef, 0x25ef, SIC_NEUTRAL },
{ 0x2605, 0x2606, SIC_NEUTRAL },
{ 0x2609, 0x2609, SIC_NEUTRAL },
{ 0x260e, 0x260f, SIC_NEUTRAL },
{ 0x261c, 0x261c, SIC_NEUTRAL },
{ 0x261e, 0x261e, SIC_NEUTRAL },
{ 0x2640, 0x2640, SIC_NEUTRAL },
{ 0x2642, 0x2642, SIC_NEUTRAL },
{ 0x2660, 0x2661, SIC_NEUTRAL },
{ 0x2663, 0x2665, SIC_NEUTRAL },
{ 0x2667, 0x266a, SIC_NEUTRAL },
{ 0x266c, 0x266d, SIC_NEUTRAL },
{ 0x266f, 0x266f, SIC_NEUTRAL },
{ 0x273d, 0x273d, SIC_NEUTRAL },
{ 0x2e80, 0x312f, SIC_COMPLEX },
{ 0x3190, 0x31bf, SIC_COMPLEX },
{ 0x31f0, 0x31ff, SIC_COMPLEX },
{ 0x3220, 0x325f, SIC_COMPLEX },
{ 0x3280, 0xa4ff, SIC_COMPLEX },
{ 0xd800, 0xdfff, SIC_COMPLEX },
{ 0xe000, 0xf8ff, SIC_NEUTRAL },
{ 0xf900, 0xfaff, SIC_COMPLEX },
{ 0xfb13, 0xfb28, SIC_COMPLEX },
{ 0xfb29, 0xfb29, SIC_NEUTRAL },
{ 0xfb2a, 0xfb4f, SIC_COMPLEX },
{ 0xfd3e, 0xfd3f, SIC_NEUTRAL },
{ 0xfdd0, 0xfdef, SIC_COMPLEX },
{ 0xfe20, 0xfe6f, SIC_COMPLEX },
{ 0xfeff, 0xfeff, SIC_COMPLEX },
{ 0xff01, 0xff5e, SIC_COMPLEX },
{ 0xff61, 0xff9f, SIC_COMPLEX },
{ 0xffe0, 0xffe6, SIC_COMPLEX },
{ 0xffe8, 0xffee, SIC_COMPLEX },
{ 0xfff9, 0xfffb, SIC_COMPLEX },
{ 0xfffe, 0xfffe, SIC_COMPLEX }
};
/***********************************************************************
* ScriptIsComplex (USP10.@)
*
* Determine if a string is complex.
*
* PARAMS
* chars [I] Array of characters to test.
* len [I] Length in characters.
* flag [I] Flag.
*
* RETURNS
* Success: S_OK
* Failure: S_FALSE
*
* NOTES
* Behaviour matches that of WinXP.
*/
HRESULT WINAPI ScriptIsComplex(const WCHAR *chars, int len, DWORD flag)
{
unsigned int i, j;
TRACE("(%s,%d,0x%x)\n", debugstr_wn(chars, len), len, flag);
for (i = 0; i < len; i++)
{
for (j = 0; j < sizeof(complex_ranges)/sizeof(complex_ranges[0]); j++)
{
if (chars[i] >= complex_ranges[j].start &&
chars[i] <= complex_ranges[j].end &&
(flag & complex_ranges[j].flag)) return S_OK;
}
}
return S_FALSE;
}
/***********************************************************************
* ScriptShape (USP10.@)
*
* Produce glyphs and visual attributes for a run.
*
* PARAMS
* hdc [I] Device context.
* psc [I/O] Opaque pointer to a script cache.
* pwcChars [I] Array of characters specifying the run.
* cChars [I] Number of characters in pwcChars.
* cMaxGlyphs [I] Length of pwOutGlyphs.
* psa [I/O] String analysis.
* pwOutGlyphs [O] Array of glyphs.
* pwLogClust [O] Array of logical cluster info.
* psva [O] Array of visual attributes.
* pcGlyphs [O] Number of glyphs returned.
*
* RETURNS
* Success: S_OK
* Failure: Non-zero HRESULT value.
*/
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)
{
int cnt;
HRESULT hr;
*pcGlyphs = cChars;
TRACE("(%p, %p, %p, %d, %d, %p)\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 ((hr = get_script_cache(hdc, psc))) return hr;
TRACE("Before: ");
for (cnt = 0; cnt < cChars; cnt++)
TRACE("%4x",pwcChars[cnt]);
TRACE("\n");
if (!psa->fNoGlyphIndex) { /* Glyph translate */
if (!(GetGlyphIndicesW(get_cache_hdc(psc), pwcChars, cChars, pwOutGlyphs, 0)))
return S_FALSE;
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++) {
/* FIXME: set to better values */
psva[cnt].uJustification = 2;
psva[cnt].fClusterStart = 1;
psva[cnt].fDiacritic = 0;
psva[cnt].fZeroWidth = 0;
pwLogClust[cnt] = cnt;
}
return S_OK;
}
/***********************************************************************
* ScriptPlace (USP10.@)
*
* Produce advance widths for a run.
*
* PARAMS
* hdc [I] Device context.
* psc [I/O] Opaque pointer to a script cache.
* pwGlyphs [I] Array of glyphs.
* cGlyphs [I] Number of glyphs in pwGlyphs.
* psva [I] Array of visual attributes.
* psa [I/O] String analysis.
* piAdvance [O] Array of advance widths.
* pGoffset [O] Glyph offsets.
* pABC [O] Combined ABC width.
*
* RETURNS
* Success: S_OK
* Failure: Non-zero HRESULT value.
*/
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 )
{
int wcnt;
HRESULT hr;
LPABC lpABC;
TRACE("(%p, %p, %p, %s, %d, %p, %p, %p)\n", hdc, psc, pwGlyphs,
debugstr_wn(pwGlyphs, cGlyphs), cGlyphs, psva, psa, piAdvance);
if ((hr = get_script_cache(hdc, psc))) return hr;
/* Here we need to calculate the width of the run unit. At this point the input string
* has been converted to glyphs and we still need to translate back to the original chars
* to get the correct ABC widths. */
if (!(lpABC = usp_zero_alloc(sizeof(ABC) * cGlyphs))) return E_OUTOFMEMORY;
if (pABC)
memset(pABC, 0, sizeof(ABC));
/* FIXME: set pGoffset to more reasonable values */
if (!GetCharABCWidthsI(get_cache_hdc(psc), 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);
if (pABC)
{
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;
}
}
if (pABC)
TRACE("Total for run: abcA=%d, abcB=%d, abcC=%d\n", pABC->abcA, pABC->abcB, pABC->abcC);
usp_free(lpABC);
return S_OK;
}
/***********************************************************************
* ScriptGetCMap (USP10.@)
*
* Retrieve glyph indices.
*
* PARAMS
* hdc [I] Device context.
* psc [I/O] Opaque pointer to a script cache.
* pwcInChars [I] Array of Unicode characters.
* cChars [I] Number of characters in pwcInChars.
* dwFlags [I] Flags.
* pwOutGlyphs [O] Buffer to receive the array of glyph indices.
*
* RETURNS
* Success: S_OK
* Failure: Non-zero HRESULT value.
*/
HRESULT WINAPI ScriptGetCMap(HDC hdc, SCRIPT_CACHE *psc, const WCHAR *pwcInChars,
int cChars, DWORD dwFlags, WORD *pwOutGlyphs)
{
int cnt;
HRESULT hr;
TRACE("(%p,%p,%s,%d,0x%x,%p)\n", hdc, psc, debugstr_wn(pwcInChars, cChars),
cChars, dwFlags, pwOutGlyphs);
if ((hr = get_script_cache(hdc, psc))) return hr;
TRACE("Before: ");
for (cnt = 0; cnt < cChars; cnt++)
TRACE("%4x",pwcInChars[cnt]);
TRACE("\n");
GetGlyphIndicesW(get_cache_hdc(psc), pwcInChars, cChars, pwOutGlyphs, 0);
TRACE("After: ");
for (cnt = 0; cnt < cChars; cnt++) {
TRACE("%04x",pwOutGlyphs[cnt]);
}
TRACE("\n");
return S_OK;
}
/***********************************************************************
* 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)
{
HRESULT hr;
TRACE("(%p, %p, %d, %d, %04x, %p, %p, %p, %d, %p, %d, %p, %p, %p)\n",
hdc, psc, x, y, fuOptions, lprc, psa, pwcReserved, iReserved, pwGlyphs, cGlyphs,
piAdvance, piJustify, pGoffset);
if (!hdc && psc && !*psc) return E_INVALIDARG;
if (!piAdvance || !psa || !pwGlyphs) return E_INVALIDARG;
if ((hr = get_script_cache(hdc, psc))) return hr;
fuOptions &= ETO_CLIPPED + ETO_OPAQUE;
if (!psa->fNoGlyphIndex) /* Have Glyphs? */
fuOptions |= ETO_GLYPH_INDEX; /* Say don't do translation to glyph */
if (!ExtTextOutW(get_cache_hdc(psc), x, y, fuOptions, lprc, pwGlyphs, cGlyphs, NULL))
return S_FALSE;
return S_OK;
}
/***********************************************************************
* ScriptCacheGetHeight (USP10.@)
*
* Retrieve the height of the font in the cache.
*
* PARAMS
* hdc [I] Device context.
* psc [I/O] Opaque pointer to a script cache.
* height [O] Receives font height.
*
* RETURNS
* Success: S_OK
* Failure: Non-zero HRESULT value.
*/
HRESULT WINAPI ScriptCacheGetHeight(HDC hdc, SCRIPT_CACHE *psc, LONG *height)
{
HRESULT hr;
TRACE("(%p, %p, %p)\n", hdc, psc, height);
if (!height) return E_INVALIDARG;
if ((hr = get_script_cache(hdc, psc))) return hr;
*height = get_cache_height(psc);
return S_OK;
}
/***********************************************************************
* ScriptGetGlyphABCWidth (USP10.@)
*
* Retrieve the width of a glyph.
*
* PARAMS
* hdc [I] Device context.
* psc [I/O] Opaque pointer to a script cache.
* glyph [I] Glyph to retrieve the width for.
* abc [O] ABC widths of the glyph.
*
* RETURNS
* Success: S_OK
* Failure: Non-zero HRESULT value.
*/
HRESULT WINAPI ScriptGetGlyphABCWidth(HDC hdc, SCRIPT_CACHE *psc, WORD glyph, ABC *abc)
{
HRESULT hr;
TRACE("(%p, %p, 0x%04x, %p)\n", hdc, psc, glyph, abc);
if ((hr = get_script_cache(hdc, psc))) return hr;
/* FIXME: get this from the cache */
if (!GetCharABCWidthsW(get_cache_hdc(psc), glyph, glyph, abc)) return E_HANDLE;
return S_OK;
}
/***********************************************************************
* ScriptLayout (USP10.@)
*
* Map embedding levels to visual and/or logical order.
*
* PARAMS
* runs [I] Size of level array.
* level [I] Array of embedding levels.
* vistolog [O] Map of embedding levels from visual to logical order.
* logtovis [O] Map of embedding levels from logical to visual order.
*
* RETURNS
* Success: S_OK
* Failure: Non-zero HRESULT value.
*
* BUGS
* This stub works correctly for any sequence of a single
* embedding level but not for sequences of different
* embedding levels, i.e. mixtures of RTL and LTR scripts.
*/
HRESULT WINAPI ScriptLayout(int runs, const BYTE *level, int *vistolog, int *logtovis)
{
int i, j = runs - 1, k = 0;
TRACE("(%d, %p, %p, %p)\n", runs, level, vistolog, logtovis);
if (!level || (!vistolog && !logtovis))
return E_INVALIDARG;
for (i = 0; i < runs; i++)
{
if (level[i] % 2)
{
if (vistolog) *vistolog++ = j;
if (logtovis) *logtovis++ = j;
j--;
}
else
{
if (vistolog) *vistolog++ = k;
if (logtovis) *logtovis++ = k;
k++;
}
}
return S_OK;
}
/***********************************************************************
* ScriptStringGetLogicalWidths (USP10.@)
*
* Returns logical widths from a string analysis.
*
* PARAMS
* ssa [I] string analysis.
* piDx [O] logical widths returned.
*
* RETURNS
* Success: S_OK
* Failure: a non-zero HRESULT.
*/
HRESULT WINAPI ScriptStringGetLogicalWidths(SCRIPT_STRING_ANALYSIS ssa, int *piDx)
{
int i, j, next = 0;
StringAnalysis *analysis = ssa;
TRACE("%p, %p\n", ssa, piDx);
if (!analysis) return S_FALSE;
for (i = 0; i < analysis->numItems; i++)
{
for (j = 0; j < analysis->glyphs[i].numGlyphs; j++)
{
piDx[next] = analysis->glyphs[i].piAdvance[j];
next++;
}
}
return S_OK;
}
/***********************************************************************
* ScriptStringValidate (USP10.@)
*
* Validate a string analysis.
*
* PARAMS
* ssa [I] string analysis.
*
* RETURNS
* Success: S_OK
* Failure: S_FALSE if invalid sequences are found
* or a non-zero HRESULT if it fails.
*/
HRESULT WINAPI ScriptStringValidate(SCRIPT_STRING_ANALYSIS ssa)
{
StringAnalysis *analysis = ssa;
TRACE("(%p)\n", ssa);
if (!analysis) return E_INVALIDARG;
return (analysis->invalid) ? S_FALSE : S_OK;
}
/***********************************************************************
* ScriptString_pSize (USP10.@)
*
* Retrieve width and height of an analysed string.
*
* PARAMS
* ssa [I] string analysis.
*
* RETURNS
* Success: Pointer to a SIZE structure.
* Failure: NULL
*/
const SIZE * WINAPI ScriptString_pSize(SCRIPT_STRING_ANALYSIS ssa)
{
unsigned int i, j;
StringAnalysis *analysis = ssa;
TRACE("(%p)\n", ssa);
if (!analysis) return NULL;
if (!analysis->sz)
{
if (!(analysis->sz = usp_alloc(sizeof(SIZE)))) return NULL;
analysis->sz->cy = analysis->sc->height;
analysis->sz->cx = 0;
for (i = 0; i < analysis->numItems; i++)
for (j = 0; j < analysis->glyphs[i].numGlyphs; j++)
analysis->sz->cx += analysis->glyphs[i].piAdvance[j];
}
return analysis->sz;
}
/***********************************************************************
* ScriptString_pLogAttr (USP10.@)
*
* Retrieve logical attributes of an analysed string.
*
* PARAMS
* ssa [I] string analysis.
*
* RETURNS
* Success: Pointer to an array of SCRIPT_LOGATTR structures.
* Failure: NULL
*/
const SCRIPT_LOGATTR * WINAPI ScriptString_pLogAttr(SCRIPT_STRING_ANALYSIS ssa)
{
StringAnalysis *analysis = ssa;
TRACE("(%p)\n", ssa);
if (!analysis) return NULL;
return analysis->logattrs;
}
/***********************************************************************
* ScriptString_pcOutChars (USP10.@)
*
* Retrieve the length of a string after clipping.
*
* PARAMS
* ssa [I] String analysis.
*
* RETURNS
* Success: Pointer to the length.
* Failure: NULL
*/
const int * WINAPI ScriptString_pcOutChars(SCRIPT_STRING_ANALYSIS ssa)
{
StringAnalysis *analysis = ssa;
TRACE("(%p)\n", ssa);
if (!analysis) return NULL;
return &analysis->clip_len;
}
/***********************************************************************
* ScriptStringGetOrder (USP10.@)
*
* Retrieve a glyph order map.
*
* PARAMS
* ssa [I] String analysis.
* order [I/O] Array of glyph positions.
*
* RETURNS
* Success: S_OK
* Failure: a non-zero HRESULT.
*/
HRESULT WINAPI ScriptStringGetOrder(SCRIPT_STRING_ANALYSIS ssa, UINT *order)
{
unsigned int i, j, k;
StringAnalysis *analysis = ssa;
TRACE("(%p)\n", ssa);
if (!analysis) return S_FALSE;
/* FIXME: handle RTL scripts */
for (i = 0, k = 0; i < analysis->numItems; i++)
for (j = 0; j < analysis->glyphs[i].numGlyphs; j++, k++)
order[k] = k;
return S_OK;
}
/***********************************************************************
* ScriptGetLogicalWidths (USP10.@)
*
* Convert advance widths to logical widths.
*
* PARAMS
* sa [I] Script analysis.
* nbchars [I] Number of characters.
* nbglyphs [I] Number of glyphs.
* glyph_width [I] Array of glyph widths.
* log_clust [I] Array of logical clusters.
* sva [I] Visual attributes.
* widths [O] Array of logical widths.
*
* RETURNS
* Success: S_OK
* Failure: a non-zero HRESULT.
*/
HRESULT WINAPI ScriptGetLogicalWidths(const SCRIPT_ANALYSIS *sa, int nbchars, int nbglyphs,
const int *glyph_width, const WORD *log_clust,
const SCRIPT_VISATTR *sva, int *widths)
{
int i;
TRACE("(%p, %d, %d, %p, %p, %p, %p)\n",
sa, nbchars, nbglyphs, glyph_width, log_clust, sva, widths);
/* FIXME */
for (i = 0; i < nbchars; i++) widths[i] = glyph_width[i];
return S_OK;
}
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