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usp10: Introduce an enumeration for GPOS lookup types. 

As opposed to using magic numbers.

Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Aric Stewart <aric@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Henri Verbeet 2017-02-19 19:02:29 +01:00 committed by Alexandre Julliard
parent 4b22953ec5
commit 61e8a388b2
1 changed files with 40 additions and 17 deletions
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57
dlls/usp10/opentype.c
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@ -48,6 +48,19 @@ WINE_DEFAULT_DEBUG_CHANNEL(uniscribe);
/* These are all structures needed for the cmap format 12 table */
#define CMAP_TAG MS_MAKE_TAG('c', 'm', 'a', 'p')
enum gpos_lookup_type
{
GPOS_LOOKUP_ADJUST_SINGLE = 0x1,
GPOS_LOOKUP_ADJUST_PAIR = 0x2,
GPOS_LOOKUP_ATTACH_CURSIVE = 0x3,
GPOS_LOOKUP_ATTACH_MARK_TO_BASE = 0x4,
GPOS_LOOKUP_ATTACH_MARK_TO_LIGATURE = 0x5,
GPOS_LOOKUP_ATTACH_MARK_TO_MARK = 0x6,
GPOS_LOOKUP_POSITION_CONTEXT = 0x7,
GPOS_LOOKUP_POSITION_CONTEXT_CHAINED = 0x8,
GPOS_LOOKUP_POSITION_EXTENSION = 0x9,
};
typedef struct {
WORD platformID;
WORD encodingID;
@ -1587,7 +1600,7 @@ static const BYTE *GPOS_get_subtable(const OT_LookupTable *look, int index)
{
int offset = GET_BE_WORD(look->SubTable[index]);
if (GET_BE_WORD(look->LookupType) == 9)
if (GET_BE_WORD(look->LookupType) == GPOS_LOOKUP_POSITION_EXTENSION)
{
const GPOS_ExtensionPosFormat1 *ext = (const GPOS_ExtensionPosFormat1 *)((const BYTE *)look + offset);
if (GET_BE_WORD(ext->PosFormat) == 1)
@ -2250,13 +2263,15 @@ static INT GPOS_apply_lookup(ScriptCache *psc, LPOUTLINETEXTMETRICW lpotm, LPLOG
int offset;
const OT_LookupTable *look;
int ppem = lpotm->otmTextMetrics.tmAscent + lpotm->otmTextMetrics.tmDescent - lpotm->otmTextMetrics.tmInternalLeading;
WORD type;
enum gpos_lookup_type type;
offset = GET_BE_WORD(lookup->Lookup[lookup_index]);
look = (const OT_LookupTable*)((const BYTE*)lookup + offset);
type = GET_BE_WORD(look->LookupType);
TRACE("type %i, flag %x, subtables %i\n",type,GET_BE_WORD(look->LookupFlag),GET_BE_WORD(look->SubTableCount));
if (type == 9)
TRACE("type %#x, flag %#x, subtables %u.\n", type,
GET_BE_WORD(look->LookupFlag), GET_BE_WORD(look->SubTableCount));
if (type == GPOS_LOOKUP_POSITION_EXTENSION)
{
if (GET_BE_WORD(look->SubTableCount))
{
@ -2278,7 +2293,7 @@ static INT GPOS_apply_lookup(ScriptCache *psc, LPOUTLINETEXTMETRICW lpotm, LPLOG
}
switch (type)
{
case 1:
case GPOS_LOOKUP_ADJUST_SINGLE:
{
double devX, devY;
POINT adjust = {0,0};
@ -2299,7 +2314,8 @@ static INT GPOS_apply_lookup(ScriptCache *psc, LPOUTLINETEXTMETRICW lpotm, LPLOG
}
break;
}
case 2:
case GPOS_LOOKUP_ADJUST_PAIR:
{
POINT advance[2]= {{0,0},{0,0}};
POINT adjust[2]= {{0,0},{0,0}};
@ -2333,7 +2349,8 @@ static INT GPOS_apply_lookup(ScriptCache *psc, LPOUTLINETEXTMETRICW lpotm, LPLOG
}
return index;
}
case 3:
case GPOS_LOOKUP_ATTACH_CURSIVE:
{
POINT desU = {0,0};
double devX, devY;
@ -2348,7 +2365,8 @@ static INT GPOS_apply_lookup(ScriptCache *psc, LPOUTLINETEXTMETRICW lpotm, LPLOG
}
break;
}
case 4:
case GPOS_LOOKUP_ATTACH_MARK_TO_BASE:
{
double devX, devY;
POINT desU = {0,0};
@ -2366,7 +2384,8 @@ static INT GPOS_apply_lookup(ScriptCache *psc, LPOUTLINETEXTMETRICW lpotm, LPLOG
}
break;
}
case 5:
case GPOS_LOOKUP_ATTACH_MARK_TO_LIGATURE:
{
double devX, devY;
POINT desU = {0,0};
@ -2379,7 +2398,8 @@ static INT GPOS_apply_lookup(ScriptCache *psc, LPOUTLINETEXTMETRICW lpotm, LPLOG
}
break;
}
case 6:
case GPOS_LOOKUP_ATTACH_MARK_TO_MARK:
{
double devX, devY;
POINT desU = {0,0};
@ -2393,14 +2413,17 @@ static INT GPOS_apply_lookup(ScriptCache *psc, LPOUTLINETEXTMETRICW lpotm, LPLOG
}
break;
}
case 7:
return GPOS_apply_ContextPos(psc, lpotm, lplogfont, analysis, piAdvance, lookup, look, glyphs, glyph_index, glyph_count, ppem, pGoffset);
case 8:
{
return GPOS_apply_ChainContextPos(psc, lpotm, lplogfont, analysis, piAdvance, lookup, look, glyphs, glyph_index, glyph_count, ppem, pGoffset);
}
case GPOS_LOOKUP_POSITION_CONTEXT:
return GPOS_apply_ContextPos(psc, lpotm, lplogfont, analysis, piAdvance,
lookup, look, glyphs, glyph_index, glyph_count, ppem, pGoffset);
case GPOS_LOOKUP_POSITION_CONTEXT_CHAINED:
return GPOS_apply_ChainContextPos(psc, lpotm, lplogfont, analysis, piAdvance,
lookup, look, glyphs, glyph_index, glyph_count, ppem, pGoffset);
default:
FIXME("We do not handle SubType %i\n",type);
FIXME("Unhandled GPOS lookup type %#x.\n", type);
}
return glyph_index+1;
}