Aric Stewart : usp10: Display and handle bidi runs in the correct order in ScriptString functions .
Alexandre Julliard
julliard at winehq.org
Mon Aug 29 11:28:40 CDT 2011
Module: wine
Branch: master
Commit: a7071662f7e75da4c936f532a07e132f252c3a4a
URL: http://source.winehq.org/git/wine.git/?a=commit;h=a7071662f7e75da4c936f532a07e132f252c3a4a
Author: Aric Stewart <aric at codeweavers.com>
Date: Mon Aug 29 06:49:40 2011 -0500
usp10: Display and handle bidi runs in the correct order in ScriptString functions.
---
dlls/usp10/usp10.c | 58 +++++++++++++++++++++++++++++++++++-----------------
1 files changed, 39 insertions(+), 19 deletions(-)
diff --git a/dlls/usp10/usp10.c b/dlls/usp10/usp10.c
index 38f6c3a..105990b 100644
--- a/dlls/usp10/usp10.c
+++ b/dlls/usp10/usp10.c
@@ -334,6 +334,7 @@ typedef struct {
StringGlyphs* glyphs;
SCRIPT_LOGATTR* logattrs;
SIZE* sz;
+ int* logical2visual;
} StringAnalysis;
static inline void *heap_alloc(SIZE_T size)
@@ -910,6 +911,7 @@ HRESULT WINAPI ScriptStringAnalyse(HDC hdc, const void *pString, int cString,
SCRIPT_CONTROL sControl;
SCRIPT_STATE sState;
int i, num_items = 255;
+ BYTE *BidiLevel;
TRACE("(%p,%p,%d,%d,%d,0x%x,%d,%p,%p,%p,%p,%p,%p)\n",
hdc, pString, cString, cGlyphs, iCharset, dwFlags, iReqWidth,
@@ -965,6 +967,11 @@ HRESULT WINAPI ScriptStringAnalyse(HDC hdc, const void *pString, int cString,
if (!(analysis->glyphs = heap_alloc_zero(sizeof(StringGlyphs) * analysis->numItems)))
goto error;
+ if (!(analysis->logical2visual = heap_alloc_zero(sizeof(int) * analysis->numItems)))
+ goto error;
+ if (!(BidiLevel = heap_alloc_zero(analysis->numItems)))
+ goto error;
+
for (i = 0; i < analysis->numItems; i++)
{
SCRIPT_CACHE *sc = (SCRIPT_CACHE *)&analysis->sc;
@@ -994,8 +1001,13 @@ HRESULT WINAPI ScriptStringAnalyse(HDC hdc, const void *pString, int cString,
analysis->glyphs[i].pGoffset = pGoffset;
analysis->glyphs[i].abc = abc;
analysis->glyphs[i].iMaxPosX= -1;
+
+ BidiLevel[i] = analysis->pItem[i].a.s.uBidiLevel;
}
+ ScriptLayout(analysis->numItems, BidiLevel, NULL, analysis->logical2visual);
+ heap_free(BidiLevel);
+
*pssa = analysis;
return S_OK;
@@ -1003,6 +1015,7 @@ error:
heap_free(analysis->glyphs);
heap_free(analysis->logattrs);
heap_free(analysis->pItem);
+ heap_free(analysis->logical2visual);
heap_free(analysis->sc);
heap_free(analysis);
return hr;
@@ -1064,24 +1077,23 @@ HRESULT WINAPI ScriptStringOut(SCRIPT_STRING_ANALYSIS ssa,
uOptions |= ETO_GLYPH_INDEX;
analysis->pItem[0].a.fNoGlyphIndex = FALSE; /* say that we have glyphs */
+ TRACE("numItems %d\n", analysis->numItems);
+
/*
* 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);
+ memcpy(&glyphs[cnt], analysis->glyphs[analysis->logical2visual[item]].glyphs,
+ sizeof(WCHAR) * analysis->glyphs[analysis->logical2visual[item]].numGlyphs);
- TRACE("Item %d, Glyphs %d ", item, analysis->glyphs[item].numGlyphs);
- for (x = cnt; x < analysis->glyphs[item].numGlyphs + cnt; x ++)
+ TRACE("Item %d, Glyphs %d ", analysis->logical2visual[item], analysis->glyphs[analysis->logical2visual[item]].numGlyphs);
+ for (x = cnt; x < analysis->glyphs[analysis->logical2visual[item]].numGlyphs + cnt; x ++)
TRACE("%04x", glyphs[x]);
TRACE("\n");
- cnt += analysis->glyphs[item].numGlyphs; /* point to the end of the copied text */
+ cnt += analysis->glyphs[analysis->logical2visual[item]].numGlyphs; /* point to the end of the copied text */
}
hr = ScriptTextOut(analysis->hdc, (SCRIPT_CACHE *)&analysis->sc, iX, iY,
@@ -1102,7 +1114,7 @@ HRESULT WINAPI ScriptStringOut(SCRIPT_STRING_ANALYSIS ssa,
*/
HRESULT WINAPI ScriptStringCPtoX(SCRIPT_STRING_ANALYSIS ssa, int icp, BOOL fTrailing, int* pX)
{
- int i;
+ int item;
int runningX = 0;
StringAnalysis* analysis = ssa;
@@ -1117,10 +1129,13 @@ HRESULT WINAPI ScriptStringCPtoX(SCRIPT_STRING_ANALYSIS ssa, int icp, BOOL fTrai
return E_INVALIDARG;
}
- for(i=0; i<analysis->numItems; i++)
+ for(item=0; item<analysis->numItems; item++)
{
- int CP = analysis->pItem[i+1].iCharPos - analysis->pItem[i].iCharPos;
+ int CP, i;
int offset;
+
+ i = analysis->logical2visual[item];
+ CP = analysis->pItem[i+1].iCharPos - analysis->pItem[i].iCharPos;
/* initialize max extents for uninitialized runs */
if (analysis->glyphs[i].iMaxPosX == -1)
{
@@ -1134,13 +1149,13 @@ HRESULT WINAPI ScriptStringCPtoX(SCRIPT_STRING_ANALYSIS ssa, int icp, BOOL fTrai
&analysis->pItem[i].a, &analysis->glyphs[i].iMaxPosX);
}
- if (icp >= CP)
+ if (icp >= analysis->pItem[i+1].iCharPos || icp < analysis->pItem[i].iCharPos)
{
runningX += analysis->glyphs[i].iMaxPosX;
- icp -= CP;
continue;
}
+ icp -= analysis->pItem[i].iCharPos;
ScriptCPtoX(icp, fTrailing, CP, analysis->glyphs[i].numGlyphs, analysis->glyphs[i].pwLogClust,
analysis->glyphs[i].psva, analysis->glyphs[i].piAdvance,
&analysis->pItem[i].a, &offset);
@@ -1162,8 +1177,7 @@ HRESULT WINAPI ScriptStringCPtoX(SCRIPT_STRING_ANALYSIS ssa, int icp, BOOL fTrai
HRESULT WINAPI ScriptStringXtoCP(SCRIPT_STRING_ANALYSIS ssa, int iX, int* piCh, int* piTrailing)
{
StringAnalysis* analysis = ssa;
- int i;
- int runningCp = 0;
+ int item;
TRACE("(%p), %d, (%p), (%p)\n", ssa, iX, piCh, piTrailing);
@@ -1185,9 +1199,15 @@ HRESULT WINAPI ScriptStringXtoCP(SCRIPT_STRING_ANALYSIS ssa, int iX, int* piCh,
return S_OK;
}
- for(i=0; i<analysis->numItems; i++)
+ for(item=0; item<analysis->numItems; item++)
{
- int CP = analysis->pItem[i+1].iCharPos - analysis->pItem[i].iCharPos;
+ int i;
+ int CP;
+
+ for (i = 0; i < analysis->numItems && analysis->logical2visual[i] != item; i++)
+ /* nothing */;
+
+ CP = analysis->pItem[i+1].iCharPos - analysis->pItem[i].iCharPos;
/* initialize max extents for uninitialized runs */
if (analysis->glyphs[i].iMaxPosX == -1)
{
@@ -1204,14 +1224,13 @@ HRESULT WINAPI ScriptStringXtoCP(SCRIPT_STRING_ANALYSIS ssa, int iX, int* piCh,
if (iX > analysis->glyphs[i].iMaxPosX)
{
iX -= analysis->glyphs[i].iMaxPosX;
- runningCp += CP;
continue;
}
ScriptXtoCP(iX, CP, analysis->glyphs[i].numGlyphs, analysis->glyphs[i].pwLogClust,
analysis->glyphs[i].psva, analysis->glyphs[i].piAdvance,
&analysis->pItem[i].a, piCh, piTrailing);
- *piCh += runningCp;
+ *piCh += analysis->pItem[i].iCharPos;
return S_OK;
}
@@ -1264,6 +1283,7 @@ HRESULT WINAPI ScriptStringFree(SCRIPT_STRING_ANALYSIS *pssa)
heap_free(analysis->logattrs);
heap_free(analysis->sz);
heap_free(analysis->sc);
+ heap_free(analysis->logical2visual);
heap_free(analysis);
if (invalid) return E_INVALIDARG;
More information about the wine-cvs
mailing list