Aric Stewart : usp10: Use a bsearch function to find a glyph in the LogClust array.
Module: wine Branch: master Commit: 4df4929198696161e1daf7ee006997e425654a15 URL: http://source.winehq.org/git/wine.git/?a=commit;h=4df4929198696161e1daf7ee00... Author: Aric Stewart <aric(a)codeweavers.com> Date: Mon Jan 30 07:30:08 2012 -0600 usp10: Use a bsearch function to find a glyph in the LogClust array. --- dlls/usp10/opentype.c | 7 +++- dlls/usp10/shape.c | 60 +++++++++++++++++------------------------- dlls/usp10/usp10.c | 52 +++++++++++++++++++++++++++++++++--- dlls/usp10/usp10_internal.h | 2 + 4 files changed, 78 insertions(+), 43 deletions(-) diff --git a/dlls/usp10/opentype.c b/dlls/usp10/opentype.c index c30d513..3c0af41 100644 --- a/dlls/usp10/opentype.c +++ b/dlls/usp10/opentype.c @@ -438,9 +438,12 @@ void OpenType_GDEF_UpdateGlyphProps(HDC hdc, ScriptCache *psc, const WORD *pwGly int char_count = 0; int k; - for (k = 0; k < cChars; k++) - if (pwLogClust[k] == i) + k = USP10_FindGlyphInLogClust(pwLogClust, cChars, i); + if (k >= 0) + { + for (; k < cChars && pwLogClust[k] == i; k++) char_count++; + } class = GDEF_get_glyph_class(psc->GDEF_Table, pwGlyphs[i]); diff --git a/dlls/usp10/shape.c b/dlls/usp10/shape.c index a893f7e..5ba6e6f 100644 --- a/dlls/usp10/shape.c +++ b/dlls/usp10/shape.c @@ -2359,13 +2359,11 @@ static void ShapeCharGlyphProp_Default( HDC hdc, ScriptCache* psc, SCRIPT_ANALYS int char_index[20]; int char_count = 0; - for (k = 0; k < cChars; k++) + k = USP10_FindGlyphInLogClust(pwLogClust, cChars, i); + if (k>=0) { - if (pwLogClust[k] == i) - { - char_index[char_count] = k; - char_count++; - } + for (; k < cChars && pwLogClust[k] == i; k++) + char_index[char_count++] = k; } if (char_count == 0) @@ -2425,13 +2423,11 @@ static void ShapeCharGlyphProp_Arabic( HDC hdc, ScriptCache *psc, SCRIPT_ANALYSI int char_count = 0; BOOL isInit, isFinal; - for (k = 0; k < cChars; k++) + k = USP10_FindGlyphInLogClust(pwLogClust, cChars, i); + if (k>=0) { - if (pwLogClust[k] == i) - { - char_index[char_count] = k; - char_count++; - } + for (; k < cChars && pwLogClust[k] == i; k++) + char_index[char_count++] = k; } isInit = (i == initGlyph || (i+dirR > 0 && i+dirR < cGlyphs && spaces[i+dirR])); @@ -2534,13 +2530,11 @@ static void ShapeCharGlyphProp_Thai( HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS int char_index[20]; int char_count = 0; - for (k = 0; k < cChars; k++) + k = USP10_FindGlyphInLogClust(pwLogClust, cChars, i); + if (k>=0) { - if (pwLogClust[k] == i) - { - char_index[char_count] = k; - char_count++; - } + for (; k < cChars && pwLogClust[k] == i; k++) + char_index[char_count++] = k; } if (char_count == 0) @@ -2581,13 +2575,11 @@ static void ShapeCharGlyphProp_None( HDC hdc, ScriptCache* psc, SCRIPT_ANALYSIS* int char_index[20]; int char_count = 0; - for (k = 0; k < cChars; k++) + k = USP10_FindGlyphInLogClust(pwLogClust, cChars, i); + if (k>=0) { - if (pwLogClust[k] == i) - { - char_index[char_count] = k; - char_count++; - } + for (; k < cChars && pwLogClust[k] == i; k++) + char_index[char_count++] = k; } if (char_count == 0) @@ -2614,13 +2606,11 @@ static void ShapeCharGlyphProp_Tibet( HDC hdc, ScriptCache* psc, SCRIPT_ANALYSIS int char_index[20]; int char_count = 0; - for (k = 0; k < cChars; k++) + k = USP10_FindGlyphInLogClust(pwLogClust, cChars, i); + if (k>=0) { - if (pwLogClust[k] == i) - { - char_index[char_count] = k; - char_count++; - } + for (; k < cChars && pwLogClust[k] == i; k++) + char_index[char_count++] = k; } if (char_count == 0) @@ -2658,13 +2648,11 @@ static void ShapeCharGlyphProp_BaseIndic( HDC hdc, ScriptCache *psc, SCRIPT_ANAL int char_index[20]; int char_count = 0; - for (k = 0; k < cChars; k++) + k = USP10_FindGlyphInLogClust(pwLogClust, cChars, i); + if (k>=0) { - if (pwLogClust[k] == i) - { - char_index[char_count] = k; - char_count++; - } + for (; k < cChars && pwLogClust[k] == i; k++) + char_index[char_count++] = k; } if (override_gsub) diff --git a/dlls/usp10/usp10.c b/dlls/usp10/usp10.c index ef8a7ac..beecce9 100644 --- a/dlls/usp10/usp10.c +++ b/dlls/usp10/usp10.c @@ -25,6 +25,7 @@ */ #include <stdarg.h> +#include <stdlib.h> #include "windef.h" #include "winbase.h" @@ -703,6 +704,11 @@ typedef struct { int* logical2visual; } StringAnalysis; +typedef struct { + BOOL ascending; + WORD target; +} FindGlyph_struct; + static inline void *heap_alloc(SIZE_T size) { return HeapAlloc(GetProcessHeap(), 0, size); @@ -881,6 +887,46 @@ static WORD get_char_script( LPCWSTR str, INT index, INT end, INT *consumed) return SCRIPT_UNDEFINED; } +static int compare_FindGlyph(const void *a, const void* b) +{ + const FindGlyph_struct *find = (FindGlyph_struct*)a; + const WORD *idx= (WORD*)b; + int rc = 0; + + if ( find->target > *idx) + rc = 1; + else if (find->target < *idx) + rc = -1; + + if (!find->ascending) + rc *= -1; + return rc; +} + +int USP10_FindGlyphInLogClust(const WORD* pwLogClust, int cChars, WORD target) +{ + FindGlyph_struct fgs; + WORD *ptr; + INT k; + + if (pwLogClust[0] < pwLogClust[cChars-1]) + fgs.ascending = TRUE; + else + fgs.ascending = FALSE; + + fgs.target = target; + ptr = bsearch(&fgs, pwLogClust, cChars, sizeof(WORD), compare_FindGlyph); + + if (!ptr) + return -1; + + for (k = (ptr - pwLogClust)-1; k >= 0 && pwLogClust[k] == target; k--) + ; + k++; + + return k; +} + /*********************************************************************** * DllMain * @@ -1873,13 +1919,9 @@ error: static inline BOOL does_glyph_start_cluster(const SCRIPT_VISATTR *pva, const WORD *pwLogClust, int cChars, int glyph, int direction) { - int i; - if (pva[glyph].fClusterStart) return TRUE; - for (i = 0; i < cChars; i++) - if (pwLogClust[i] == glyph) break; - if (i != cChars) + if (USP10_FindGlyphInLogClust(pwLogClust, cChars, glyph) >= 0) return TRUE; return FALSE; diff --git a/dlls/usp10/usp10_internal.h b/dlls/usp10/usp10_internal.h index 02beaf6..558eb55 100644 --- a/dlls/usp10/usp10_internal.h +++ b/dlls/usp10/usp10_internal.h @@ -204,6 +204,8 @@ typedef void (*reorder_function)(LPWSTR pwChar, IndicSyllable *syllable, lexical #define BIDI_WEAK 2 #define BIDI_NEUTRAL 0 +int USP10_FindGlyphInLogClust(const WORD* pwLogClust, int cChars, WORD target) DECLSPEC_HIDDEN; + BOOL BIDI_DetermineLevels( LPCWSTR lpString, INT uCount, const SCRIPT_STATE *s, const SCRIPT_CONTROL *c, WORD *lpOutLevels ) DECLSPEC_HIDDEN; BOOL BIDI_GetStrengths(LPCWSTR lpString, INT uCount, const SCRIPT_CONTROL *c,
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Alexandre Julliard