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Use the gasp table to check whether we should trigger antialiasing.

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Huw Davies 2005-09-12 11:11:30 +00:00 committed by Alexandre Julliard
parent dc420fe6c3
commit e33f622bd1
1 changed files with 62 additions and 3 deletions
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65
dlls/x11drv/xrender.c
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@ -33,6 +33,7 @@
#include "wownt32.h"
#include "x11drv.h"
#include "gdi.h"
#include "winternl.h"
#include "wine/library.h"
#include "wine/unicode.h"
#include "wine/debug.h"
@ -141,6 +142,22 @@ static CRITICAL_SECTION_DEBUG critsect_debug =
};
static CRITICAL_SECTION xrender_cs = { &critsect_debug, -1, 0, 0, 0, 0 };
#define MS_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
( ( (ULONG)_x4 << 24 ) | \
( (ULONG)_x3 << 16 ) | \
( (ULONG)_x2 << 8 ) | \
(ULONG)_x1 )
#define MS_GASP_TAG MS_MAKE_TAG('g', 'a', 's', 'p')
#define GASP_GRIDFIT 0x01
#define GASP_DOGRAY 0x02
#ifdef WORDS_BIGENDIAN
#define get_be_word(x) (x)
#else
#define get_be_word(x) RtlUshortByteSwap(x)
#endif
/***********************************************************************
* X11DRV_XRender_Init
@ -405,11 +422,48 @@ static int AllocEntry(void)
return mru;
}
static int GetCacheEntry(LFANDSIZE *plfsz)
static BOOL get_gasp_flags(X11DRV_PDEVICE *physDev, WORD *flags)
{
DWORD size;
WORD *gasp;
WORD num_recs;
DWORD ppem;
TEXTMETRICW tm;
*flags = 0;
size = GetFontData(physDev->hdc, MS_GASP_TAG, 0, NULL, 0);
if(size == GDI_ERROR)
return FALSE;
gasp = HeapAlloc(GetProcessHeap(), 0, size);
GetFontData(physDev->hdc, MS_GASP_TAG, 0, gasp, size);
GetTextMetricsW(physDev->hdc, &tm);
ppem = abs(X11DRV_YWStoDS(physDev, tm.tmAscent + tm.tmDescent - tm.tmInternalLeading));
gasp++;
num_recs = get_be_word(*gasp);
gasp++;
while(num_recs--)
{
*flags = get_be_word(*(gasp + 1));
if(ppem <= get_be_word(*gasp))
break;
gasp += 2;
}
TRACE("got flags %04x for ppem %ld\n", *flags, ppem);
HeapFree(GetProcessHeap(), 0, gasp);
return TRUE;
}
static int GetCacheEntry(X11DRV_PDEVICE *physDev, LFANDSIZE *plfsz)
{
int ret;
int format;
gsCacheEntry *entry;
WORD flags;
if((ret = LookupEntry(plfsz)) != -1) return ret;
@ -421,7 +475,12 @@ static int GetCacheEntry(LFANDSIZE *plfsz)
}
if(antialias && plfsz->lf.lfQuality != NONANTIALIASED_QUALITY)
entry->aa_default = AA_Grey;
{
if(!get_gasp_flags(physDev, &flags) || flags & GASP_DOGRAY)
entry->aa_default = AA_Grey;
else
entry->aa_default = AA_None;
}
else
entry->aa_default = AA_None;
@ -493,7 +552,7 @@ BOOL X11DRV_XRender_SelectFont(X11DRV_PDEVICE *physDev, HFONT hfont)
}
else if(physDev->xrender->cache_index != -1)
dec_ref_cache(physDev->xrender->cache_index);
physDev->xrender->cache_index = GetCacheEntry(&lfsz);
physDev->xrender->cache_index = GetCacheEntry(physDev, &lfsz);
LeaveCriticalSection(&xrender_cs);
return 0;
}