wineps.drv: Remove the unscaled font hack and read the outline directly from the font file.

This commit is contained in:
Huw Davies 2010-04-21 14:28:40 +01:00 committed by Alexandre Julliard
parent 3c640ddacd
commit 76146568af
1 changed files with 416 additions and 69 deletions

View File

@ -30,6 +30,7 @@
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winternl.h"
#include "psdrv.h"
#include "wine/debug.h"
@ -55,6 +56,20 @@ enum t1_cmds {
};
#define MS_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
( ( (DWORD)_x4 << 24 ) | \
( (DWORD)_x3 << 16 ) | \
( (DWORD)_x2 << 8 ) | \
(DWORD)_x1 )
#ifdef WORDS_BIGENDIAN
static inline WORD get_be_word(const void *p) { return *(WORD*)p; }
static inline DWORD get_be_dword(const void *p) { return *(DWORD*)p; }
#else
static inline WORD get_be_word(const void *p) { return RtlUshortByteSwap(*(WORD*)p); }
static inline DWORD get_be_dword(const void *p) { return RtlUlongByteSwap(*(DWORD*)p); }
#endif
TYPE1 *T1_download_header(PSDRV_PDEVICE *physDev, char *ps_name, RECT *bbox, UINT emsize)
{
char *buf;
@ -154,15 +169,11 @@ static void str_add_num(STR *str, int num)
}
}
static void str_add_point(STR *str, POINTFX *pt, POINT *curpos)
static void str_add_point(STR *str, POINT pt, POINT *curpos)
{
POINT newpos;
newpos.x = pt->x.value + ((pt->x.fract >> 15) & 0x1);
newpos.y = pt->y.value + ((pt->y.fract >> 15) & 0x1);
str_add_num(str, newpos.x - curpos->x);
str_add_num(str, newpos.y - curpos->y);
*curpos = newpos;
str_add_num(str, pt.x - curpos->x);
str_add_num(str, pt.y - curpos->y);
*curpos = pt;
}
static void str_add_cmd(STR *str, enum t1_cmds cmd)
@ -176,23 +187,343 @@ static int str_get_bytes(STR *str, BYTE **b)
return str->len;
}
static BOOL get_hmetrics(HDC hdc, DWORD index, short *lsb, WORD *advance)
{
BYTE hhea[36];
WORD num_of_long;
BYTE buf[4];
*lsb = 0;
*advance = 0;
GetFontData(hdc, MS_MAKE_TAG('h','h','e','a'), 0, hhea, sizeof(hhea));
num_of_long = get_be_word(hhea + 34);
if(index < num_of_long)
{
if(GetFontData(hdc, MS_MAKE_TAG('h','m','t','x'), index * 4, buf, 4) != 4) return FALSE;
*advance = get_be_word(buf);
*lsb = (signed short)get_be_word(buf + 2);
}
else
{
if(GetFontData(hdc, MS_MAKE_TAG('h','m','t','x'), (num_of_long - 1) * 4, buf, 2) != 2) return FALSE;
*advance = get_be_word(buf);
if(GetFontData(hdc, MS_MAKE_TAG('h','m','t','x'), num_of_long * 4 + (index - num_of_long) * 2, buf, 2) != 2) return FALSE;
*lsb = (signed short)get_be_word(buf);
}
return TRUE;
}
static BOOL get_glyf_pos(HDC hdc, DWORD index, DWORD *start, DWORD *end)
{
DWORD len;
BYTE *head, *loca;
WORD loca_format;
BOOL ret = FALSE;
*start = *end = 0;
len = GetFontData(hdc, MS_MAKE_TAG('h','e','a','d'), 0, NULL, 0);
head = HeapAlloc(GetProcessHeap(), 0, len);
GetFontData(hdc, MS_MAKE_TAG('h','e','a','d'), 0, head, len);
loca_format = get_be_word(head + 50);
len = GetFontData(hdc, MS_MAKE_TAG('l','o','c','a'), 0, NULL, 0);
loca = HeapAlloc(GetProcessHeap(), 0, len);
GetFontData(hdc, MS_MAKE_TAG('l','o','c','a'), 0, loca, len);
switch(loca_format) {
case 0:
*start = get_be_word(((WORD*)loca) + index);
*start <<= 1;
*end = get_be_word(((WORD*)loca) + index + 1);
*end <<= 1;
ret = TRUE;
break;
case 1:
*start = get_be_dword(((DWORD*)loca) + index);
*end = get_be_dword(((DWORD*)loca) + index + 1);
ret = TRUE;
break;
default:
ERR("Unknown loca_format %d\n", loca_format);
}
HeapFree(GetProcessHeap(), 0, loca);
HeapFree(GetProcessHeap(), 0, head);
return ret;
}
static BYTE *get_glyph_data(HDC hdc, DWORD index)
{
DWORD start, end, len;
BYTE *data;
if(!get_glyf_pos(hdc, index, &start, &end))
return NULL;
len = end - start;
if(!len) return NULL;
data = HeapAlloc(GetProcessHeap(), 0, len);
if(!data) return NULL;
if(GetFontData(hdc, MS_MAKE_TAG('g','l','y','f'), start, data, len) != len)
{
HeapFree(GetProcessHeap(), 0, data);
return NULL;
}
return data;
}
typedef struct
{
WORD num_conts;
WORD *end_pts; /* size_is(num_conts) */
BYTE *flags; /* size_is(end_pts[num_conts - 1] + 1) */
POINT *pts; /* size_is(end_pts[num_conts - 1] + 1) */
short lsb;
WORD advance;
} glyph_outline;
static inline WORD pts_in_outline(glyph_outline *outline)
{
WORD num_pts = 0;
if(outline->num_conts)
num_pts = outline->end_pts[outline->num_conts - 1] + 1;
return num_pts;
}
static BOOL append_glyph_outline(HDC hdc, DWORD index, glyph_outline *outline);
static BOOL append_simple_glyph(BYTE *data, glyph_outline *outline)
{
USHORT num_pts, start_pt = 0, ins_len;
WORD *end_pts;
int num_conts, start_cont, i;
BYTE *ptr;
int x, y;
start_cont = outline->num_conts;
start_pt = pts_in_outline(outline);
num_conts = get_be_word(data);
end_pts = (WORD*)(data + 10);
num_pts = get_be_word(end_pts + num_conts - 1) + 1;
ins_len = get_be_word(end_pts + num_conts);
ptr = (BYTE*)(end_pts + num_conts) + 2 + ins_len;
if(outline->num_conts)
{
outline->end_pts = HeapReAlloc(GetProcessHeap(), 0, outline->end_pts, (start_cont + num_conts) * sizeof(*outline->end_pts));
outline->flags = HeapReAlloc(GetProcessHeap(), 0, outline->flags, start_pt + num_pts);
outline->pts = HeapReAlloc(GetProcessHeap(), 0, outline->pts, (start_pt + num_pts) * sizeof(*outline->pts));
}
else
{
outline->end_pts = HeapAlloc(GetProcessHeap(), 0, num_conts * sizeof(*outline->end_pts));
outline->flags = HeapAlloc(GetProcessHeap(), 0, num_pts);
outline->pts = HeapAlloc(GetProcessHeap(), 0, num_pts * sizeof(*outline->pts));
}
outline->num_conts += num_conts;
for(i = 0; i < num_conts; i++)
outline->end_pts[start_cont + i] = start_pt + get_be_word(end_pts + i);
for(i = 0; i < num_pts; i++)
{
outline->flags[start_pt + i] = *ptr;
if(*ptr & 8)
{
BYTE count = *++ptr;
while(count)
{
i++;
outline->flags[start_pt + i] = *(ptr - 1);
count--;
}
}
ptr++;
}
x = 0;
for(i = 0; i < num_pts; i++)
{
INT delta;
delta = 0;
if(outline->flags[start_pt + i] & 2)
{
delta = *ptr++;
if((outline->flags[start_pt + i] & 0x10) == 0)
delta = -delta;
}
else if((outline->flags[start_pt + i] & 0x10) == 0)
{
delta = (signed short)get_be_word(ptr);
ptr += 2;
}
x += delta;
outline->pts[start_pt + i].x = x;
}
y = 0;
for(i = 0; i < num_pts; i++)
{
INT delta;
delta = 0;
if(outline->flags[start_pt + i] & 4)
{
delta = *ptr++;
if((outline->flags[start_pt + i] & 0x20) == 0)
delta = -delta;
}
else if((outline->flags[start_pt + i] & 0x20) == 0)
{
delta = (signed short)get_be_word(ptr);
ptr += 2;
}
y += delta;
outline->pts[start_pt + i].y = y;
}
return TRUE;
}
/* Some flags for composite glyphs. See glyf table in OT spec */
#define ARG_1_AND_2_ARE_WORDS (1L << 0)
#define ARGS_ARE_XY_VALUES (1L << 1)
#define WE_HAVE_A_SCALE (1L << 3)
#define MORE_COMPONENTS (1L << 5)
#define WE_HAVE_AN_X_AND_Y_SCALE (1L << 6)
#define WE_HAVE_A_TWO_BY_TWO (1L << 7)
#define USE_MY_METRICS (1L << 9)
static BOOL append_complex_glyph(HDC hdc, const BYTE *data, glyph_outline *outline)
{
const BYTE *ptr = data;
WORD flags, index;
short arg1, arg2;
WORD scale_xx = 1, scale_xy = 0, scale_yx = 0, scale_yy = 1;
WORD start_pt, end_pt;
ptr += 10;
do
{
flags = get_be_word(ptr);
ptr += 2;
index = get_be_word(ptr);
ptr += 2;
if(flags & ARG_1_AND_2_ARE_WORDS)
{
arg1 = (short)get_be_word(ptr);
ptr += 2;
arg2 = (short)get_be_word(ptr);
ptr += 2;
}
else
{
arg1 = *(char*)ptr++;
arg2 = *(char*)ptr++;
}
if(flags & WE_HAVE_A_SCALE)
{
scale_xx = scale_yy = get_be_word(ptr);
ptr += 2;
}
else if(flags & WE_HAVE_AN_X_AND_Y_SCALE)
{
scale_xx = get_be_word(ptr);
ptr += 2;
scale_yy = get_be_word(ptr);
ptr += 2;
}
else if(flags & WE_HAVE_A_TWO_BY_TWO)
{
scale_xx = get_be_word(ptr);
ptr += 2;
scale_xy = get_be_word(ptr);
ptr += 2;
scale_yx = get_be_word(ptr);
ptr += 2;
scale_yy = get_be_word(ptr);
ptr += 2;
}
start_pt = pts_in_outline(outline);
append_glyph_outline(hdc, index, outline);
end_pt = pts_in_outline(outline);
if((flags & ARGS_ARE_XY_VALUES) == 0)
{
WORD orig_pt = arg1, new_pt = arg2;
new_pt += start_pt;
if(orig_pt >= start_pt || new_pt >= end_pt) return FALSE;
arg1 = outline->pts[orig_pt].x - outline->pts[new_pt].x;
arg2 = outline->pts[orig_pt].y - outline->pts[new_pt].y;
}
while(start_pt < end_pt)
{
outline->pts[start_pt].x += arg1;
outline->pts[start_pt].y += arg2;
start_pt++;
}
if(flags & USE_MY_METRICS)
get_hmetrics(hdc, index, &outline->lsb, &outline->advance);
} while(flags & MORE_COMPONENTS);
return TRUE;
}
static BOOL append_glyph_outline(HDC hdc, DWORD index, glyph_outline *outline)
{
BYTE *glyph_data;
SHORT num_conts;
glyph_data = get_glyph_data(hdc, index);
if(!glyph_data) return FALSE;
num_conts = get_be_word(glyph_data);
if(num_conts == -1)
append_complex_glyph(hdc, glyph_data, outline);
else if(num_conts > 0)
append_simple_glyph(glyph_data, outline);
HeapFree(GetProcessHeap(), 0, glyph_data);
return TRUE;
}
static inline BOOL on_point(const glyph_outline *outline, WORD pt)
{
return outline->flags[pt] & 1;
}
BOOL T1_download_glyph(PSDRV_PDEVICE *physDev, DOWNLOAD *pdl, DWORD index,
char *glyph_name)
{
DWORD len, i;
DWORD len;
WORD cur_pt, cont;
char *buf;
TYPE1 *t1;
STR *charstring;
BYTE *bytes;
HFONT old_font, unscaled_font;
GLYPHMETRICS gm;
char *glyph_buf;
POINT curpos;
TTPOLYGONHEADER *pph;
TTPOLYCURVE *ppc;
LOGFONTW lf;
RECT rc;
static const MAT2 identity = { {0,1},{0,0},{0,0},{0,1} };
glyph_outline outline;
static const char glyph_def_begin[] =
"/%s findfont dup\n"
"/Private get begin\n"
@ -216,71 +547,88 @@ BOOL T1_download_glyph(PSDRV_PDEVICE *physDev, DOWNLOAD *pdl, DWORD index,
t1->glyph_sent_size * sizeof(*(t1->glyph_sent)));
}
GetObjectW(GetCurrentObject(physDev->hdc, OBJ_FONT), sizeof(lf), &lf);
rc.left = rc.right = rc.bottom = 0;
rc.top = t1->emsize;
DPtoLP(physDev->hdc, (POINT*)&rc, 2);
lf.lfHeight = -abs(rc.top - rc.bottom);
lf.lfWidth = 0;
lf.lfOrientation = lf.lfEscapement = 0;
unscaled_font = CreateFontIndirectW(&lf);
old_font = SelectObject(physDev->hdc, unscaled_font);
len = GetGlyphOutlineW(physDev->hdc, index, GGO_GLYPH_INDEX | GGO_BEZIER,
&gm, 0, NULL, &identity);
if(len == GDI_ERROR) return FALSE;
glyph_buf = HeapAlloc(GetProcessHeap(), 0, len);
GetGlyphOutlineW(physDev->hdc, index, GGO_GLYPH_INDEX | GGO_BEZIER,
&gm, len, glyph_buf, &identity);
outline.num_conts = 0;
outline.flags = NULL;
outline.end_pts = NULL;
outline.pts = NULL;
get_hmetrics(physDev->hdc, index, &outline.lsb, &outline.advance);
SelectObject(physDev->hdc, old_font);
DeleteObject(unscaled_font);
if(!append_glyph_outline(physDev->hdc, index, &outline)) return FALSE;
charstring = str_init(100);
curpos.x = gm.gmptGlyphOrigin.x;
curpos.x = outline.lsb;
curpos.y = 0;
str_add_num(charstring, curpos.x);
str_add_num(charstring, gm.gmCellIncX);
str_add_num(charstring, outline.advance);
str_add_cmd(charstring, hsbw);
pph = (TTPOLYGONHEADER*)glyph_buf;
while((char*)pph < glyph_buf + len) {
TRACE("contour len %d\n", pph->cb);
ppc = (TTPOLYCURVE*)((char*)pph + sizeof(*pph));
for(cur_pt = 0, cont = 0; cont < outline.num_conts; cont++)
{
POINT start_pos = outline.pts[cur_pt++];
WORD end_pt = outline.end_pts[cont];
POINT curve_pts[3] = {{0,0},{0,0},{0,0}};
str_add_point(charstring, &pph->pfxStart, &curpos);
str_add_point(charstring, start_pos, &curpos);
str_add_cmd(charstring, rmoveto);
while((char*)ppc < (char*)pph + pph->cb) {
TRACE("line type %d cpfx = %d\n", ppc->wType, ppc->cpfx);
switch(ppc->wType) {
case TT_PRIM_LINE:
for(i = 0; i < ppc->cpfx; i++) {
str_add_point(charstring, ppc->apfx + i, &curpos);
str_add_cmd(charstring, rlineto);
}
break;
case TT_PRIM_CSPLINE:
for(i = 0; i < ppc->cpfx/3; i++) {
str_add_point(charstring, ppc->apfx + 3 * i, &curpos);
str_add_point(charstring, ppc->apfx + 3 * i + 1, &curpos);
str_add_point(charstring, ppc->apfx + 3 * i + 2, &curpos);
str_add_cmd(charstring, rrcurveto);
}
break;
default:
ERR("curve type = %d\n", ppc->wType);
return FALSE;
}
ppc = (TTPOLYCURVE*)((char*)ppc + sizeof(*ppc) +
(ppc->cpfx - 1) * sizeof(POINTFX));
}
str_add_cmd(charstring, closepath);
pph = (TTPOLYGONHEADER*)((char*)pph + pph->cb);
for(; cur_pt <= end_pt; cur_pt++)
{
if(on_point(&outline, cur_pt))
{
str_add_point(charstring, outline.pts[cur_pt], &curpos);
str_add_cmd(charstring, rlineto);
}
else
{
BOOL added_next = FALSE;
/* temporarily store the start pt in curve_pts[0] */
if(on_point(&outline, cur_pt - 1))
curve_pts[0] = outline.pts[cur_pt - 1];
else /* last pt was off curve too, so the previous curve's
end pt was constructed */
curve_pts[0] = curve_pts[2];
if(cur_pt != end_pt)
{
if(on_point(&outline, cur_pt + 1))
{
curve_pts[2] = outline.pts[cur_pt + 1];
added_next = TRUE;
}
else /* next pt is off curve too, so construct the end pt from the
average of the two */
{
curve_pts[2].x = (outline.pts[cur_pt].x + outline.pts[cur_pt + 1].x + 1) / 2;
curve_pts[2].y = (outline.pts[cur_pt].y + outline.pts[cur_pt + 1].y + 1) / 2;
}
}
else /* last pt of the contour is off curve, so the end pt is the
start pt of the contour */
curve_pts[2] = start_pos;
curve_pts[0].x = (curve_pts[0].x + 2 * outline.pts[cur_pt].x + 1) / 3;
curve_pts[0].y = (curve_pts[0].y + 2 * outline.pts[cur_pt].y + 1) / 3;
curve_pts[1].x = (curve_pts[2].x + 2 * outline.pts[cur_pt].x + 1) / 3;
curve_pts[1].y = (curve_pts[2].y + 2 * outline.pts[cur_pt].y + 1) / 3;
str_add_point(charstring, curve_pts[0], &curpos);
str_add_point(charstring, curve_pts[1], &curpos);
str_add_point(charstring, curve_pts[2], &curpos);
str_add_cmd(charstring, rrcurveto);
if(added_next) cur_pt++;
}
}
str_add_cmd(charstring, closepath);
}
str_add_cmd(charstring, endchar);
HeapFree(GetProcessHeap(), 0, outline.pts);
HeapFree(GetProcessHeap(), 0, outline.end_pts);
HeapFree(GetProcessHeap(), 0, outline.flags);
buf = HeapAlloc(GetProcessHeap(), 0, sizeof(glyph_def_begin) +
strlen(pdl->ps_name) + strlen(glyph_name) + 100);
@ -296,7 +644,6 @@ BOOL T1_download_glyph(PSDRV_PDEVICE *physDev, DOWNLOAD *pdl, DWORD index,
str_free(charstring);
t1->glyph_sent[index] = TRUE;
HeapFree(GetProcessHeap(), 0, glyph_buf);
HeapFree(GetProcessHeap(), 0, buf);
return TRUE;
}