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673 lines
19 KiB
C
673 lines
19 KiB
C
/*
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* PostScript driver Type1 font functions
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*
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* Copyright 2002 Huw D M Davies for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <string.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <assert.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "winternl.h"
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#include "psdrv.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(psdrv);
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struct tagTYPE1 {
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DWORD glyph_sent_size;
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BOOL *glyph_sent;
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DWORD emsize;
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};
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#define GLYPH_SENT_INC 128
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/* Type 1 font commands */
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enum t1_cmds {
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rlineto = 5,
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rrcurveto = 8,
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closepath = 9,
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hsbw = 13,
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endchar = 14,
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rmoveto = 21
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};
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#define MS_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
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( ( (DWORD)_x4 << 24 ) | \
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( (DWORD)_x3 << 16 ) | \
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( (DWORD)_x2 << 8 ) | \
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(DWORD)_x1 )
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#ifdef WORDS_BIGENDIAN
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static inline WORD get_be_word(const void *p) { return *(const WORD*)p; }
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static inline DWORD get_be_dword(const void *p) { return *(const DWORD*)p; }
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#else
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static inline WORD get_be_word(const void *p) { return RtlUshortByteSwap(*(const WORD*)p); }
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static inline DWORD get_be_dword(const void *p) { return RtlUlongByteSwap(*(const DWORD*)p); }
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#endif
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TYPE1 *T1_download_header(PHYSDEV dev, char *ps_name, RECT *bbox, UINT emsize)
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{
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char *buf;
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TYPE1 *t1;
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static const char dict[] = /* name, emsquare, fontbbox */
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"25 dict begin\n"
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" /FontName /%s def\n"
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" /Encoding 256 array 0 1 255{1 index exch /.notdef put} for def\n"
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" /PaintType 0 def\n"
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" /FontMatrix [1 %d div 0 0 1 %d div 0 0] def\n"
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" /FontBBox [%d %d %d %d] def\n"
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" /FontType 1 def\n"
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" /Private 7 dict begin\n"
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" /RD {string currentfile exch readhexstring pop} def\n"
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" /ND {def} def\n"
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" /NP {put} def\n"
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" /MinFeature {16 16} def\n"
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" /BlueValues [] def\n"
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" /password 5839 def\n"
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" /lenIV -1 def\n"
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" currentdict end def\n"
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" currentdict dup /Private get begin\n"
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" /CharStrings 256 dict begin\n"
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" /.notdef 4 RD 8b8b0d0e ND\n"
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" currentdict end put\n"
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" end\n"
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"currentdict end dup /FontName get exch definefont pop\n";
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t1 = HeapAlloc(GetProcessHeap(), 0, sizeof(*t1));
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t1->emsize = emsize;
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t1->glyph_sent_size = GLYPH_SENT_INC;
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t1->glyph_sent = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
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t1->glyph_sent_size *
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sizeof(*(t1->glyph_sent)));
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buf = HeapAlloc(GetProcessHeap(), 0, sizeof(dict) + strlen(ps_name) +
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100);
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sprintf(buf, dict, ps_name, t1->emsize, t1->emsize,
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bbox->left, bbox->bottom, bbox->right, bbox->top);
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PSDRV_WriteSpool(dev, buf, strlen(buf));
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HeapFree(GetProcessHeap(), 0, buf);
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return t1;
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}
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typedef struct {
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BYTE *str;
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int len, max_len;
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} STR;
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static STR *str_init(int sz)
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{
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STR *str = HeapAlloc(GetProcessHeap(), 0, sizeof(*str));
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str->max_len = sz;
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str->str = HeapAlloc(GetProcessHeap(), 0, str->max_len);
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str->len = 0;
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return str;
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}
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static void str_free(STR *str)
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{
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HeapFree(GetProcessHeap(), 0, str->str);
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HeapFree(GetProcessHeap(), 0, str);
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}
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static void str_add_byte(STR *str, BYTE b)
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{
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if(str->len == str->max_len) {
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str->max_len *= 2;
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str->str = HeapReAlloc(GetProcessHeap(), 0, str->str, str->max_len);
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}
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str->str[str->len++] = b;
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}
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static void str_add_num(STR *str, int num)
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{
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if(num <= 107 && num >= -107)
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str_add_byte(str, num + 139);
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else if(num >= 108 && num <= 1131) {
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str_add_byte(str, ((num - 108) >> 8) + 247);
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str_add_byte(str, (num - 108) & 0xff);
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} else if(num <= -108 && num >= -1131) {
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num = -num;
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str_add_byte(str, ((num - 108) >> 8) + 251);
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str_add_byte(str, (num - 108) & 0xff);
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} else {
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str_add_byte(str, 0xff);
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str_add_byte(str, (num >> 24) & 0xff);
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str_add_byte(str, (num >> 16) & 0xff);
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str_add_byte(str, (num >> 8) & 0xff);
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str_add_byte(str, (num & 0xff));
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}
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}
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static void str_add_point(STR *str, POINT pt, POINT *curpos)
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{
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str_add_num(str, pt.x - curpos->x);
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str_add_num(str, pt.y - curpos->y);
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*curpos = pt;
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}
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static void str_add_cmd(STR *str, enum t1_cmds cmd)
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{
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str_add_byte(str, (BYTE)cmd);
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}
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static int str_get_bytes(STR *str, BYTE **b)
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{
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*b = str->str;
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return str->len;
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}
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static BOOL get_hmetrics(HDC hdc, DWORD index, short *lsb, WORD *advance)
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{
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BYTE hhea[36];
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WORD num_of_long;
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BYTE buf[4];
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*lsb = 0;
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*advance = 0;
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GetFontData(hdc, MS_MAKE_TAG('h','h','e','a'), 0, hhea, sizeof(hhea));
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num_of_long = get_be_word(hhea + 34);
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if(index < num_of_long)
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{
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if(GetFontData(hdc, MS_MAKE_TAG('h','m','t','x'), index * 4, buf, 4) != 4) return FALSE;
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*advance = get_be_word(buf);
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*lsb = (signed short)get_be_word(buf + 2);
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}
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else
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{
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if(GetFontData(hdc, MS_MAKE_TAG('h','m','t','x'), (num_of_long - 1) * 4, buf, 2) != 2) return FALSE;
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*advance = get_be_word(buf);
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if(GetFontData(hdc, MS_MAKE_TAG('h','m','t','x'), num_of_long * 4 + (index - num_of_long) * 2, buf, 2) != 2) return FALSE;
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*lsb = (signed short)get_be_word(buf);
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}
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return TRUE;
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}
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static BOOL get_glyf_pos(HDC hdc, DWORD index, DWORD *start, DWORD *end)
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{
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DWORD len;
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BYTE *head, *loca;
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WORD loca_format;
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BOOL ret = FALSE;
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*start = *end = 0;
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len = GetFontData(hdc, MS_MAKE_TAG('h','e','a','d'), 0, NULL, 0);
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if (len == GDI_ERROR) return FALSE;
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head = HeapAlloc(GetProcessHeap(), 0, len);
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GetFontData(hdc, MS_MAKE_TAG('h','e','a','d'), 0, head, len);
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loca_format = get_be_word(head + 50);
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len = GetFontData(hdc, MS_MAKE_TAG('l','o','c','a'), 0, NULL, 0);
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if (len == GDI_ERROR)
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{
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len = GetFontData(hdc, MS_MAKE_TAG('C','F','F',' '), 0, NULL, 0);
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if (len != GDI_ERROR) FIXME( "CFF tables not supported yet\n" );
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else ERR( "loca table not found\n" );
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HeapFree(GetProcessHeap(), 0, head);
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return FALSE;
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}
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loca = HeapAlloc(GetProcessHeap(), 0, len);
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GetFontData(hdc, MS_MAKE_TAG('l','o','c','a'), 0, loca, len);
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switch(loca_format) {
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case 0:
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*start = get_be_word(((WORD*)loca) + index);
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*start <<= 1;
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*end = get_be_word(((WORD*)loca) + index + 1);
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*end <<= 1;
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ret = TRUE;
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break;
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case 1:
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*start = get_be_dword(((DWORD*)loca) + index);
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*end = get_be_dword(((DWORD*)loca) + index + 1);
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ret = TRUE;
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break;
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default:
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ERR("Unknown loca_format %d\n", loca_format);
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}
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HeapFree(GetProcessHeap(), 0, loca);
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HeapFree(GetProcessHeap(), 0, head);
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return ret;
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}
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static BYTE *get_glyph_data(HDC hdc, DWORD index)
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{
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DWORD start, end, len;
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BYTE *data;
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if(!get_glyf_pos(hdc, index, &start, &end))
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return NULL;
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len = end - start;
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if(!len) return NULL;
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data = HeapAlloc(GetProcessHeap(), 0, len);
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if(!data) return NULL;
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if(GetFontData(hdc, MS_MAKE_TAG('g','l','y','f'), start, data, len) != len)
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{
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HeapFree(GetProcessHeap(), 0, data);
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return NULL;
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}
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return data;
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}
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typedef struct
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{
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WORD num_conts;
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WORD *end_pts; /* size_is(num_conts) */
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BYTE *flags; /* size_is(end_pts[num_conts - 1] + 1) */
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POINT *pts; /* size_is(end_pts[num_conts - 1] + 1) */
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short lsb;
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WORD advance;
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} glyph_outline;
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static inline WORD pts_in_outline(glyph_outline *outline)
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{
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WORD num_pts = 0;
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if(outline->num_conts)
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num_pts = outline->end_pts[outline->num_conts - 1] + 1;
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return num_pts;
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}
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static BOOL append_glyph_outline(HDC hdc, DWORD index, glyph_outline *outline);
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static BOOL append_simple_glyph(BYTE *data, glyph_outline *outline)
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{
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USHORT num_pts, start_pt = 0, ins_len;
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WORD *end_pts;
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int num_conts, start_cont, i;
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BYTE *ptr;
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int x, y;
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start_cont = outline->num_conts;
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start_pt = pts_in_outline(outline);
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num_conts = get_be_word(data);
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end_pts = (WORD*)(data + 10);
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num_pts = get_be_word(end_pts + num_conts - 1) + 1;
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ins_len = get_be_word(end_pts + num_conts);
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ptr = (BYTE*)(end_pts + num_conts) + 2 + ins_len;
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if(outline->num_conts)
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{
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outline->end_pts = HeapReAlloc(GetProcessHeap(), 0, outline->end_pts, (start_cont + num_conts) * sizeof(*outline->end_pts));
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outline->flags = HeapReAlloc(GetProcessHeap(), 0, outline->flags, start_pt + num_pts);
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outline->pts = HeapReAlloc(GetProcessHeap(), 0, outline->pts, (start_pt + num_pts) * sizeof(*outline->pts));
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}
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else
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{
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outline->end_pts = HeapAlloc(GetProcessHeap(), 0, num_conts * sizeof(*outline->end_pts));
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outline->flags = HeapAlloc(GetProcessHeap(), 0, num_pts);
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outline->pts = HeapAlloc(GetProcessHeap(), 0, num_pts * sizeof(*outline->pts));
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}
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outline->num_conts += num_conts;
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for(i = 0; i < num_conts; i++)
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outline->end_pts[start_cont + i] = start_pt + get_be_word(end_pts + i);
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for(i = 0; i < num_pts; i++)
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{
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outline->flags[start_pt + i] = *ptr;
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if(*ptr & 8)
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{
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BYTE count = *++ptr;
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while(count)
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{
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i++;
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outline->flags[start_pt + i] = *(ptr - 1);
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count--;
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}
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}
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ptr++;
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}
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x = 0;
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for(i = 0; i < num_pts; i++)
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{
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INT delta;
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delta = 0;
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if(outline->flags[start_pt + i] & 2)
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{
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delta = *ptr++;
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if((outline->flags[start_pt + i] & 0x10) == 0)
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delta = -delta;
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}
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else if((outline->flags[start_pt + i] & 0x10) == 0)
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{
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delta = (signed short)get_be_word(ptr);
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ptr += 2;
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}
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x += delta;
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outline->pts[start_pt + i].x = x;
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}
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y = 0;
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for(i = 0; i < num_pts; i++)
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{
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INT delta;
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delta = 0;
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if(outline->flags[start_pt + i] & 4)
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{
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delta = *ptr++;
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if((outline->flags[start_pt + i] & 0x20) == 0)
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delta = -delta;
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}
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else if((outline->flags[start_pt + i] & 0x20) == 0)
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{
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delta = (signed short)get_be_word(ptr);
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ptr += 2;
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}
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y += delta;
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outline->pts[start_pt + i].y = y;
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}
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return TRUE;
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}
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/* Some flags for composite glyphs. See glyf table in OT spec */
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#define ARG_1_AND_2_ARE_WORDS (1L << 0)
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#define ARGS_ARE_XY_VALUES (1L << 1)
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#define WE_HAVE_A_SCALE (1L << 3)
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#define MORE_COMPONENTS (1L << 5)
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#define WE_HAVE_AN_X_AND_Y_SCALE (1L << 6)
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#define WE_HAVE_A_TWO_BY_TWO (1L << 7)
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#define USE_MY_METRICS (1L << 9)
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static BOOL append_complex_glyph(HDC hdc, const BYTE *data, glyph_outline *outline)
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{
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const BYTE *ptr = data;
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WORD flags, index;
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short arg1, arg2;
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FLOAT scale_xx = 1, scale_xy = 0, scale_yx = 0, scale_yy = 1;
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WORD start_pt, end_pt;
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ptr += 10;
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do
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{
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flags = get_be_word(ptr);
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ptr += 2;
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index = get_be_word(ptr);
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ptr += 2;
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if(flags & ARG_1_AND_2_ARE_WORDS)
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{
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arg1 = (short)get_be_word(ptr);
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ptr += 2;
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arg2 = (short)get_be_word(ptr);
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ptr += 2;
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}
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else
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{
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arg1 = *(const char*)ptr++;
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arg2 = *(const char*)ptr++;
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}
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if(flags & WE_HAVE_A_SCALE)
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{
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scale_xx = scale_yy = (FLOAT)(short)get_be_word(ptr) / 0x4000;
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ptr += 2;
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}
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else if(flags & WE_HAVE_AN_X_AND_Y_SCALE)
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{
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scale_xx = (FLOAT)(short)get_be_word(ptr) / 0x4000;
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ptr += 2;
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scale_yy = (FLOAT)(short)get_be_word(ptr) / 0x4000;
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ptr += 2;
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}
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else if(flags & WE_HAVE_A_TWO_BY_TWO)
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{
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scale_xx = (FLOAT)(short)get_be_word(ptr) / 0x4000;
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ptr += 2;
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scale_xy = (FLOAT)(short)get_be_word(ptr) / 0x4000;
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ptr += 2;
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scale_yx = (FLOAT)(short)get_be_word(ptr) / 0x4000;
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ptr += 2;
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scale_yy = (FLOAT)(short)get_be_word(ptr) / 0x4000;
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ptr += 2;
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}
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start_pt = pts_in_outline(outline);
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append_glyph_outline(hdc, index, outline);
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end_pt = pts_in_outline(outline);
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if (flags & (WE_HAVE_A_SCALE | WE_HAVE_AN_X_AND_Y_SCALE | WE_HAVE_A_TWO_BY_TWO))
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{
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WORD i;
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TRACE("transform %f,%f,%f,%f of glyph %x\n", scale_xx, scale_xy, scale_yx, scale_yy, index);
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for (i = start_pt; i < end_pt; i++)
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{
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LONG x = outline->pts[i].x, y = outline->pts[i].y;
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outline->pts[i].x = x * scale_xx + y * scale_yx;
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outline->pts[i].y = x * scale_xy + y * scale_yy;
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}
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}
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if((flags & ARGS_ARE_XY_VALUES) == 0)
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{
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WORD orig_pt = arg1, new_pt = arg2;
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|
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 TRUE;
|
|
|
|
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(PHYSDEV dev, DOWNLOAD *pdl, DWORD index, char *glyph_name)
|
|
{
|
|
DWORD len;
|
|
WORD cur_pt, cont;
|
|
char *buf;
|
|
TYPE1 *t1;
|
|
STR *charstring;
|
|
BYTE *bytes;
|
|
POINT curpos;
|
|
glyph_outline outline;
|
|
|
|
static const char glyph_def_begin[] =
|
|
"/%s findfont dup\n"
|
|
"/Private get begin\n"
|
|
"/CharStrings get begin\n"
|
|
"/%s %d RD\n";
|
|
static const char glyph_def_end[] =
|
|
"ND\n"
|
|
"end end\n";
|
|
|
|
TRACE("%d %s\n", index, glyph_name);
|
|
assert(pdl->type == Type1);
|
|
t1 = pdl->typeinfo.Type1;
|
|
|
|
if(index < t1->glyph_sent_size) {
|
|
if(t1->glyph_sent[index])
|
|
return TRUE;
|
|
} else {
|
|
t1->glyph_sent_size = (index / GLYPH_SENT_INC + 1) * GLYPH_SENT_INC;
|
|
t1->glyph_sent = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
|
|
t1->glyph_sent,
|
|
t1->glyph_sent_size * sizeof(*(t1->glyph_sent)));
|
|
}
|
|
|
|
outline.num_conts = 0;
|
|
outline.flags = NULL;
|
|
outline.end_pts = NULL;
|
|
outline.pts = NULL;
|
|
get_hmetrics(dev->hdc, index, &outline.lsb, &outline.advance);
|
|
|
|
if(!append_glyph_outline(dev->hdc, index, &outline)) return FALSE;
|
|
|
|
charstring = str_init(100);
|
|
curpos.x = outline.lsb;
|
|
curpos.y = 0;
|
|
|
|
str_add_num(charstring, curpos.x);
|
|
str_add_num(charstring, outline.advance);
|
|
str_add_cmd(charstring, hsbw);
|
|
|
|
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, start_pos, &curpos);
|
|
str_add_cmd(charstring, rmoveto);
|
|
|
|
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);
|
|
|
|
sprintf(buf, "%%%%glyph %04x\n", index);
|
|
PSDRV_WriteSpool(dev, buf, strlen(buf));
|
|
|
|
len = str_get_bytes(charstring, &bytes);
|
|
sprintf(buf, glyph_def_begin, pdl->ps_name, glyph_name, len);
|
|
PSDRV_WriteSpool(dev, buf, strlen(buf));
|
|
PSDRV_WriteBytes(dev, bytes, len);
|
|
sprintf(buf, glyph_def_end);
|
|
PSDRV_WriteSpool(dev, buf, strlen(buf));
|
|
str_free(charstring);
|
|
|
|
t1->glyph_sent[index] = TRUE;
|
|
HeapFree(GetProcessHeap(), 0, buf);
|
|
return TRUE;
|
|
}
|
|
|
|
void T1_free(TYPE1 *t1)
|
|
{
|
|
HeapFree(GetProcessHeap(), 0, t1->glyph_sent);
|
|
HeapFree(GetProcessHeap(), 0, t1);
|
|
return;
|
|
}
|