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usp10: Split the core Itemize function out to be able to support differences between the normal and OpenType versions.

This commit is contained in:
Aric Stewart 2013-02-05 08:57:38 -06:00 committed by Alexandre Julliard
parent 8077975e70
commit e70b9b1c1e
1 changed files with 36 additions and 33 deletions
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69
dlls/usp10/usp10.c
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@ -1270,28 +1270,11 @@ static inline WORD base_indic(WORD script)
}; };
} }
/***********************************************************************
* ScriptItemizeOpenType (USP10.@) static HRESULT _ItemizeInternal(const WCHAR *pwcInChars, int cInChars,
* int cMaxItems, const SCRIPT_CONTROL *psControl,
* Split a Unicode string into shapeable parts. const SCRIPT_STATE *psState, SCRIPT_ITEM *pItems,
* OPENTYPE_TAG *pScriptTags, int *pcItems)
* 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.
* pScriptTags [O] Buffer to receive OPENTYPE_TAGs.
* pcItems [O] Number of script items returned.
*
* RETURNS
* Success: S_OK
* Failure: Non-zero HRESULT value.
*/
HRESULT WINAPI ScriptItemizeOpenType(const WCHAR *pwcInChars, int cInChars, int cMaxItems,
const SCRIPT_CONTROL *psControl, const SCRIPT_STATE *psState,
SCRIPT_ITEM *pItems, OPENTYPE_TAG *pScriptTags, int *pcItems)
{ {
#define Numeric_space 0x0020 #define Numeric_space 0x0020
@ -1496,7 +1479,8 @@ HRESULT WINAPI ScriptItemizeOpenType(const WCHAR *pwcInChars, int cInChars, int
pItems[index].iCharPos = 0; pItems[index].iCharPos = 0;
pItems[index].a = scriptInformation[scripts[cnt]].a; pItems[index].a = scriptInformation[scripts[cnt]].a;
pScriptTags[index] = scriptInformation[scripts[cnt]].scriptTag; if (pScriptTags)
pScriptTags[index] = scriptInformation[scripts[cnt]].scriptTag;
if (strength && strength[cnt] == BIDI_STRONG) if (strength && strength[cnt] == BIDI_STRONG)
str = strength[cnt]; str = strength[cnt];
@ -1590,7 +1574,8 @@ HRESULT WINAPI ScriptItemizeOpenType(const WCHAR *pwcInChars, int cInChars, int
memset(&pItems[index].a, 0, sizeof(SCRIPT_ANALYSIS)); memset(&pItems[index].a, 0, sizeof(SCRIPT_ANALYSIS));
pItems[index].a = scriptInformation[New_Script].a; pItems[index].a = scriptInformation[New_Script].a;
pScriptTags[index] = scriptInformation[New_Script].scriptTag; if (pScriptTags)
pScriptTags[index] = scriptInformation[New_Script].scriptTag;
if (levels) if (levels)
{ {
if (levels[cnt] == 0) if (levels[cnt] == 0)
@ -1632,6 +1617,32 @@ HRESULT WINAPI ScriptItemizeOpenType(const WCHAR *pwcInChars, int cInChars, int
return S_OK; return S_OK;
} }
/***********************************************************************
* ScriptItemizeOpenType (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.
* pScriptTags [O] Buffer to receive OPENTYPE_TAGs.
* pcItems [O] Number of script items returned.
*
* RETURNS
* Success: S_OK
* Failure: Non-zero HRESULT value.
*/
HRESULT WINAPI ScriptItemizeOpenType(const WCHAR *pwcInChars, int cInChars, int cMaxItems,
const SCRIPT_CONTROL *psControl, const SCRIPT_STATE *psState,
SCRIPT_ITEM *pItems, OPENTYPE_TAG *pScriptTags, int *pcItems)
{
return _ItemizeInternal(pwcInChars, cInChars, cMaxItems, psControl, psState, pItems, pScriptTags, pcItems);
}
/*********************************************************************** /***********************************************************************
* ScriptItemize (USP10.@) * ScriptItemize (USP10.@)
* *
@ -1654,15 +1665,7 @@ HRESULT WINAPI ScriptItemize(const WCHAR *pwcInChars, int cInChars, int cMaxItem
const SCRIPT_CONTROL *psControl, const SCRIPT_STATE *psState, const SCRIPT_CONTROL *psControl, const SCRIPT_STATE *psState,
SCRIPT_ITEM *pItems, int *pcItems) SCRIPT_ITEM *pItems, int *pcItems)
{ {
OPENTYPE_TAG *discarded_tags; return _ItemizeInternal(pwcInChars, cInChars, cMaxItems, psControl, psState, pItems, NULL, pcItems);
HRESULT res;
discarded_tags = heap_alloc(cMaxItems * sizeof(OPENTYPE_TAG));
if (!discarded_tags)
return E_OUTOFMEMORY;
res = ScriptItemizeOpenType(pwcInChars, cInChars, cMaxItems, psControl, psState, pItems, discarded_tags, pcItems);
heap_free(discarded_tags);
return res;
} }
static inline int getGivenTabWidth(ScriptCache *psc, SCRIPT_TABDEF *pTabdef, int charPos, int current_x) static inline int getGivenTabWidth(ScriptCache *psc, SCRIPT_TABDEF *pTabdef, int charPos, int current_x)