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wine/dlls/wineps.drv/type42.c

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/*
* PostScript driver Type42 font functions
*
* Copyright 2002 Huw D M Davies for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <assert.h>
#include <locale.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "psdrv.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(psdrv);
#define GET_BE_WORD(ptr) MAKEWORD( ((BYTE *)(ptr))[1], ((BYTE *)(ptr))[0] )
#define GET_BE_DWORD(ptr) ((DWORD)MAKELONG( GET_BE_WORD(&((WORD *)(ptr))[1]), \
GET_BE_WORD(&((WORD *)(ptr))[0]) ))
#define MS_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
( ( (DWORD)_x4 << 24 ) | \
( (DWORD)_x3 << 16 ) | \
( (DWORD)_x2 << 8 ) | \
(DWORD)_x1 )
typedef struct {
DWORD MS_tag;
DWORD len, check;
BYTE *data;
BOOL write;
} OTTable;
static const OTTable tables_templ[] = {
{ MS_MAKE_TAG('c','v','t',' '), 0, 0, NULL, TRUE },
{ MS_MAKE_TAG('f','p','g','m'), 0, 0, NULL, TRUE },
{ MS_MAKE_TAG('g','d','i','r'), 0, 0, NULL, TRUE },
{ MS_MAKE_TAG('g','l','y','f'), 0, 0, NULL, FALSE },
{ MS_MAKE_TAG('h','e','a','d'), 0, 0, NULL, TRUE },
{ MS_MAKE_TAG('h','h','e','a'), 0, 0, NULL, TRUE },
{ MS_MAKE_TAG('h','m','t','x'), 0, 0, NULL, TRUE },
{ MS_MAKE_TAG('l','o','c','a'), 0, 0, NULL, TRUE },
{ MS_MAKE_TAG('m','a','x','p'), 0, 0, NULL, TRUE },
{ MS_MAKE_TAG('p','r','e','p'), 0, 0, NULL, TRUE },
{ 0, 0, 0, NULL, 0 }
};
struct tagTYPE42 {
OTTable tables[sizeof(tables_templ)/sizeof(tables_templ[0])];
int glyf_tab, loca_tab, head_tab; /* indices of glyf, loca and head tables */
int hmtx_tab, maxp_tab;
int num_of_written_tables;
DWORD glyph_sent_size;
BOOL *glyph_sent;
DWORD emsize;
DWORD *glyf_blocks;
};
#define GLYPH_SENT_INC 128
#define FLIP_ORDER(x) \
( ( ((x) & 0xff) << 24) | \
( ((x) & 0xff00) << 8) | \
( ((x) & 0xff0000) >> 8) | \
( ((x) & 0xff000000) >> 24) )
/* Some flags for composite glyphs. See glyf table in OT spec */
#define ARG_1_AND_2_ARE_WORDS (1L << 0)
#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)
static BOOL LoadTable(HDC hdc, OTTable *table)
{
unsigned int i;
if(table->MS_tag == MS_MAKE_TAG('g','d','i','r')) return TRUE;
table->len = GetFontData(hdc, table->MS_tag, 0, NULL, 0);
table->data = HeapAlloc(GetProcessHeap(), 0, (table->len + 3) & ~3 );
memset(table->data + ((table->len - 1) & ~3), 0, sizeof(DWORD));
GetFontData(hdc, table->MS_tag, 0, table->data, table->len);
table->check = 0;
for(i = 0; i < (table->len + 3) / 4; i++)
table->check += FLIP_ORDER(*((DWORD*)(table->data) + i));
return TRUE;
}
static BOOL get_glyf_pos(TYPE42 *t42, DWORD index, DWORD *start, DWORD *end)
{
WORD loca_format = GET_BE_WORD(t42->tables[t42->head_tab].data + 50);
TRACE("loca_format = %d\n", loca_format);
switch(loca_format) {
case 0:
*start = GET_BE_WORD(((WORD*)t42->tables[t42->loca_tab].data) + index);
*start <<= 1;
*end = GET_BE_WORD(((WORD*)t42->tables[t42->loca_tab].data) + index + 1);
*end <<= 1;
break;
case 1:
*start = GET_BE_DWORD(((DWORD*)t42->tables[t42->loca_tab].data) + index);
*end = GET_BE_DWORD(((DWORD*)t42->tables[t42->loca_tab].data) + index + 1);
break;
default:
ERR("Unknown loca_format %d\n", loca_format);
return FALSE;
}
return TRUE;
}
TYPE42 *T42_download_header(PSDRV_PDEVICE *physDev, char *ps_name,
RECT *bbox, UINT emsize)
{
DWORD i, j, tablepos, nb_blocks, glyf_off = 0, loca_off = 0, cur_off;
WORD num_of_tables = sizeof(tables_templ) / sizeof(tables_templ[0]) - 1;
char *buf;
TYPE42 *t42;
static const char start[] = /* name, fontbbox */
"25 dict begin\n"
" /FontName /%s def\n"
" /Encoding 256 array 0 1 255{1 index exch /.notdef put} for\n"
" def\n"
" /PaintType 0 def\n"
" /FontMatrix [1 0 0 1 0 0] def\n"
" /FontBBox [%f %f %f %f] def\n"
" /FontType 42 def\n"
" /CharStrings 256 dict begin\n"
" /.notdef 0 def\n"
" currentdict end def\n"
" /sfnts [\n";
static const char TT_offset_table[] = "<00010000%04x%04x%04x%04x\n";
static const char TT_table_dir_entry[] = "%08x%08x%08x%08x\n";
static const char storage[] ="]\nhavetype42gdir{pop}{{string} forall}ifelse\n";
static const char end[] = "] def\n"
"havetype42gdir{/GlyphDirectory 256 dict def\n"
" sfnts 0 get dup\n"
" %d <6c6f6378000000000000000000000000> putinterval\n" /* replace loca entry with dummy locx */
" %d <676c6678000000000000000000000000> putinterval\n" /* replace glyf entry with dummy glfx */
" }if\n"
"currentdict end dup /FontName get exch definefont pop\n";
t42 = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*t42));
memcpy(t42->tables, tables_templ, sizeof(tables_templ));
t42->loca_tab = t42->glyf_tab = t42->head_tab = t42->hmtx_tab = -1;
t42->emsize = emsize;
t42->num_of_written_tables = 0;
for(i = 0; i < num_of_tables; i++) {
LoadTable(physDev->hdc, t42->tables + i);
if(t42->tables[i].len > 0xffff && t42->tables[i].write) break;
if(t42->tables[i].write) t42->num_of_written_tables++;
if(t42->tables[i].MS_tag == MS_MAKE_TAG('l','o','c','a'))
t42->loca_tab = i;
else if(t42->tables[i].MS_tag == MS_MAKE_TAG('g','l','y','f'))
t42->glyf_tab = i;
else if(t42->tables[i].MS_tag == MS_MAKE_TAG('h','e','a','d'))
t42->head_tab = i;
else if(t42->tables[i].MS_tag == MS_MAKE_TAG('h','m','t','x'))
t42->hmtx_tab = i;
else if(t42->tables[i].MS_tag == MS_MAKE_TAG('m','a','x','p'))
t42->maxp_tab = i;
}
if(i < num_of_tables) {
TRACE("Table %d has length %d. Will use Type 1 font instead.\n", i, t42->tables[i].len);
T42_free(t42);
return NULL;
}
t42->glyph_sent_size = GLYPH_SENT_INC;
t42->glyph_sent = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
t42->glyph_sent_size *
sizeof(*(t42->glyph_sent)));
buf = HeapAlloc(GetProcessHeap(), 0, sizeof(start) + strlen(ps_name) +
100);
push_lc_numeric("C");
sprintf(buf, start, ps_name,
(float)bbox->left / emsize, (float)bbox->bottom / emsize,
(float)bbox->right / emsize, (float)bbox->top / emsize);
pop_lc_numeric();
PSDRV_WriteSpool(physDev, buf, strlen(buf));
t42->num_of_written_tables++; /* explicitly add glyf */
sprintf(buf, TT_offset_table, t42->num_of_written_tables,
t42->num_of_written_tables, t42->num_of_written_tables, t42->num_of_written_tables);
PSDRV_WriteSpool(physDev, buf, strlen(buf));
tablepos = 12 + t42->num_of_written_tables * 16;
cur_off = 12;
for(i = 0; i < num_of_tables; i++) {
if(!t42->tables[i].write) continue;
sprintf(buf, TT_table_dir_entry, FLIP_ORDER(t42->tables[i].MS_tag),
t42->tables[i].check, t42->tables[i].len ? tablepos : 0,
t42->tables[i].len);
PSDRV_WriteSpool(physDev, buf, strlen(buf));
tablepos += ((t42->tables[i].len + 3) & ~3);
if(t42->tables[i].MS_tag == MS_MAKE_TAG('l','o','c','a'))
loca_off = cur_off;
cur_off += 16;
}
sprintf(buf, TT_table_dir_entry, FLIP_ORDER(t42->tables[t42->glyf_tab].MS_tag),
t42->tables[t42->glyf_tab].check, tablepos, t42->tables[t42->glyf_tab].len);
PSDRV_WriteSpool(physDev, buf, strlen(buf));
PSDRV_WriteSpool(physDev, "00>\n", 4); /* add an extra byte for old PostScript rips */
glyf_off = cur_off;
for(i = 0; i < num_of_tables; i++) {
if(t42->tables[i].len == 0 || !t42->tables[i].write) continue;
PSDRV_WriteSpool(physDev, "<", 1);
for(j = 0; j < ((t42->tables[i].len + 3) & ~3); j++) {
sprintf(buf, "%02x", t42->tables[i].data[j]);
PSDRV_WriteSpool(physDev, buf, strlen(buf));
if(j % 16 == 15) PSDRV_WriteSpool(physDev, "\n", 1);
}
PSDRV_WriteSpool(physDev, "00>\n", 4); /* add an extra byte for old PostScript rips */
}
/* glyf_blocks is a 0 terminated list, holding the start offset of each block. For simplicity
glyf_blocks[0] is 0 */
nb_blocks = 2;
t42->glyf_blocks = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (nb_blocks + 1) * sizeof(DWORD));
for(i = 0; i < GET_BE_WORD(t42->tables[t42->maxp_tab].data + 4); i++) {
DWORD start, end, size;
get_glyf_pos(t42, i, &start, &end);
size = end - t42->glyf_blocks[nb_blocks-2];
if(size > 0x2000 && t42->glyf_blocks[nb_blocks-1] % 4 == 0) {
nb_blocks++;
t42->glyf_blocks = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
t42->glyf_blocks, (nb_blocks + 1) * sizeof(DWORD));
}
t42->glyf_blocks[nb_blocks-1] = end;
}
PSDRV_WriteSpool(physDev, "[ ", 2);
for(i = 1; t42->glyf_blocks[i]; i++) {
sprintf(buf,"%d ", t42->glyf_blocks[i] - t42->glyf_blocks[i-1] + 1);
/* again add one byte for old PostScript rips */
PSDRV_WriteSpool(physDev, buf, strlen(buf));
if(i % 8 == 0)
PSDRV_WriteSpool(physDev, "\n", 1);
}
PSDRV_WriteSpool(physDev, storage, sizeof(storage) - 1);
sprintf(buf, end, loca_off, glyf_off);
PSDRV_WriteSpool(physDev, buf, strlen(buf));
HeapFree(GetProcessHeap(), 0, buf);
return t42;
}
BOOL T42_download_glyph(PSDRV_PDEVICE *physDev, DOWNLOAD *pdl, DWORD index,
char *glyph_name)
{
DWORD start, end, i;
char *buf;
TYPE42 *t42;
const char glyph_def[] =
"/%s findfont exch 1 index\n"
"havetype42gdir\n"
"{/GlyphDirectory get begin %d exch def end}\n"
"{/sfnts get 4 index get 3 index 2 index putinterval pop}\n"
"ifelse\n"
"/CharStrings get\n"
"begin\n"
" /%s %d def\n"
"end\n"
"pop pop\n";
TRACE("%d %s\n", index, glyph_name);
assert(pdl->type == Type42);
t42 = pdl->typeinfo.Type42;
if(index < t42->glyph_sent_size) {
if(t42->glyph_sent[index])
return TRUE;
} else {
t42->glyph_sent_size = (index / GLYPH_SENT_INC + 1) * GLYPH_SENT_INC;
t42->glyph_sent = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
t42->glyph_sent,
t42->glyph_sent_size * sizeof(*(t42->glyph_sent)));
}
if(!get_glyf_pos(t42, index, &start, &end)) return FALSE;
TRACE("start = %x end = %x\n", start, end);
if(GET_BE_WORD(t42->tables[t42->glyf_tab].data + start) == 0xffff) {
/* Composite glyph */
BYTE *sg_start = t42->tables[t42->glyf_tab].data + start + 10;
DWORD sg_flags, sg_index;
char sg_name[MAX_G_NAME + 1];
do {
sg_flags = GET_BE_WORD(sg_start);
sg_index = GET_BE_WORD(sg_start + 2);
TRACE("Sending subglyph %04x for glyph %04x\n", sg_index, index);
get_glyph_name(physDev->hdc, sg_index, sg_name);
T42_download_glyph(physDev, pdl, sg_index, sg_name);
sg_start += 4;
if(sg_flags & ARG_1_AND_2_ARE_WORDS)
sg_start += 4;
else
sg_start += 2;
if(sg_flags & WE_HAVE_A_SCALE)
sg_start += 2;
else if(sg_flags & WE_HAVE_AN_X_AND_Y_SCALE)
sg_start += 4;
else if(sg_flags & WE_HAVE_A_TWO_BY_TWO)
sg_start += 8;
} while(sg_flags & MORE_COMPONENTS);
}
for(i = 1; t42->glyf_blocks[i]; i++)
if(start < t42->glyf_blocks[i]) break;
buf = HeapAlloc(GetProcessHeap(), 0, sizeof(glyph_def) +
strlen(pdl->ps_name) + 100);
/* we don't have a string for the gdir and glyf tables, but we do have a
string for the TT header. So the offset we need is tables - 2 */
sprintf(buf, "%d %d\n", t42->num_of_written_tables - 2 + i, start - t42->glyf_blocks[i-1]);
PSDRV_WriteSpool(physDev, buf, strlen(buf));
PSDRV_WriteSpool(physDev, "<", 1);
for(i = start; i < end; i++) {
sprintf(buf, "%02x", *(t42->tables[t42->glyf_tab].data + i));
PSDRV_WriteSpool(physDev, buf, strlen(buf));
if((i - start) % 16 == 15)
PSDRV_WriteSpool(physDev, "\n", 1);
}
PSDRV_WriteSpool(physDev, ">\n", 2);
sprintf(buf, glyph_def, pdl->ps_name, index, glyph_name, index);
PSDRV_WriteSpool(physDev, buf, strlen(buf));
t42->glyph_sent[index] = TRUE;
HeapFree(GetProcessHeap(), 0, buf);
return TRUE;
}
void T42_free(TYPE42 *t42)
{
OTTable *table;
for(table = t42->tables; table->MS_tag; table++)
HeapFree(GetProcessHeap(), 0, table->data);
HeapFree(GetProcessHeap(), 0, t42->glyph_sent);
HeapFree(GetProcessHeap(), 0, t42->glyf_blocks);
HeapFree(GetProcessHeap(), 0, t42);
return;
}
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