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wine/dlls/wineps.drv/download.c
Pierre Schweitzer 0652bbc3d5 wineps.drv: Fix memory leak.
2011-12-07 17:49:59 +01:00

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/*
* PostScript driver downloadable 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 <string.h>
#include <stdlib.h>
#include <assert.h>
#include <math.h>
#include <stdarg.h>
#include <stdio.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winnls.h"
#include "psdrv.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(psdrv);
#define MS_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
( ( (DWORD)_x4 << 24 ) | \
( (DWORD)_x3 << 16 ) | \
( (DWORD)_x2 << 8 ) | \
(DWORD)_x1 )
#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]) ))
/****************************************************************************
* get_download_name
*/
static void get_download_name(PHYSDEV dev, LPOUTLINETEXTMETRICA potm, char **str)
{
int len;
char *p;
DWORD size;
size = GetFontData(dev->hdc, MS_MAKE_TAG('n','a','m','e'), 0, NULL, 0);
if(size != 0 && size != GDI_ERROR)
{
BYTE *name = HeapAlloc(GetProcessHeap(), 0, size);
if(name)
{
USHORT count, i;
BYTE *strings;
struct
{
USHORT platform_id;
USHORT encoding_id;
USHORT language_id;
USHORT name_id;
USHORT length;
USHORT offset;
} *name_record;
GetFontData(dev->hdc, MS_MAKE_TAG('n','a','m','e'), 0, name, size);
count = GET_BE_WORD(name + 2);
strings = name + GET_BE_WORD(name + 4);
name_record = (typeof(name_record))(name + 6);
for(i = 0; i < count; i++, name_record++)
{
name_record->platform_id = GET_BE_WORD(&name_record->platform_id);
name_record->encoding_id = GET_BE_WORD(&name_record->encoding_id);
name_record->language_id = GET_BE_WORD(&name_record->language_id);
name_record->name_id = GET_BE_WORD(&name_record->name_id);
name_record->length = GET_BE_WORD(&name_record->length);
name_record->offset = GET_BE_WORD(&name_record->offset);
if(name_record->platform_id == 1 && name_record->encoding_id == 0 &&
name_record->language_id == 0 && name_record->name_id == 6)
{
TRACE("Got Mac PS name %s\n", debugstr_an((char*)strings + name_record->offset, name_record->length));
*str = HeapAlloc(GetProcessHeap(), 0, name_record->length + 1);
memcpy(*str, strings + name_record->offset, name_record->length);
*(*str + name_record->length) = '\0';
HeapFree(GetProcessHeap(), 0, name);
return;
}
if(name_record->platform_id == 3 && name_record->encoding_id == 1 &&
name_record->language_id == 0x409 && name_record->name_id == 6)
{
WCHAR *unicode = HeapAlloc(GetProcessHeap(), 0, name_record->length + 2);
DWORD len;
int c;
for(c = 0; c < name_record->length / 2; c++)
unicode[c] = GET_BE_WORD(strings + name_record->offset + c * 2);
unicode[c] = 0;
TRACE("Got Windows PS name %s\n", debugstr_w(unicode));
len = WideCharToMultiByte(1252, 0, unicode, -1, NULL, 0, NULL, NULL);
*str = HeapAlloc(GetProcessHeap(), 0, len);
WideCharToMultiByte(1252, 0, unicode, -1, *str, len, NULL, NULL);
HeapFree(GetProcessHeap(), 0, unicode);
HeapFree(GetProcessHeap(), 0, name);
return;
}
}
TRACE("Unable to find PostScript name\n");
HeapFree(GetProcessHeap(), 0, name);
}
}
len = strlen((char*)potm + (ptrdiff_t)potm->otmpFullName) + 1;
*str = HeapAlloc(GetProcessHeap(),0,len);
strcpy(*str, (char*)potm + (ptrdiff_t)potm->otmpFullName);
p = *str;
while((p = strchr(p, ' ')))
*p = '_';
return;
}
/****************************************************************************
* is_font_downloaded
*/
static DOWNLOAD *is_font_downloaded(PSDRV_PDEVICE *physDev, char *ps_name)
{
DOWNLOAD *pdl;
for(pdl = physDev->downloaded_fonts; pdl; pdl = pdl->next)
if(!strcmp(pdl->ps_name, ps_name))
break;
return pdl;
}
/****************************************************************************
* is_room_for_font
*/
static BOOL is_room_for_font(PSDRV_PDEVICE *physDev)
{
DOWNLOAD *pdl;
int count = 0;
/* FIXME: should consider vm usage of each font and available printer memory.
For now we allow up to two fonts to be downloaded at a time */
for(pdl = physDev->downloaded_fonts; pdl; pdl = pdl->next)
count++;
if(count > 1)
return FALSE;
return TRUE;
}
/****************************************************************************
* get_bbox
*
* This retrieves the bounding box of the font in font units as well as
* the size of the emsquare. To avoid having to worry about mapping mode and
* the font size we'll get the data directly from the TrueType HEAD table rather
* than using GetOutlineTextMetrics.
*/
static BOOL get_bbox(HDC hdc, RECT *rc, UINT *emsize)
{
BYTE head[54]; /* the head table is 54 bytes long */
if(GetFontData(hdc, MS_MAKE_TAG('h','e','a','d'), 0, head, sizeof(head)) == GDI_ERROR)
{
ERR("Can't retrieve head table\n");
return FALSE;
}
*emsize = GET_BE_WORD(head + 18); /* unitsPerEm */
if(rc)
{
rc->left = (signed short)GET_BE_WORD(head + 36); /* xMin */
rc->bottom = (signed short)GET_BE_WORD(head + 38); /* yMin */
rc->right = (signed short)GET_BE_WORD(head + 40); /* xMax */
rc->top = (signed short)GET_BE_WORD(head + 42); /* yMax */
}
return TRUE;
}
/****************************************************************************
* PSDRV_SelectDownloadFont
*
* Set up physDev->font for a downloadable font
*
*/
BOOL PSDRV_SelectDownloadFont(PHYSDEV dev)
{
PSDRV_PDEVICE *physDev = get_psdrv_dev( dev );
physDev->font.fontloc = Download;
physDev->font.fontinfo.Download = NULL;
return TRUE;
}
static UINT calc_ppem_for_height(HDC hdc, LONG height)
{
BYTE os2[78]; /* size of version 0 table */
BYTE hhea[8]; /* just enough to get the ascender and descender */
LONG ascent = 0, descent = 0;
UINT emsize;
if(height < 0) return -height;
if(GetFontData(hdc, MS_MAKE_TAG('O','S','/','2'), 0, os2, sizeof(os2)) == sizeof(os2))
{
ascent = GET_BE_WORD(os2 + 74); /* usWinAscent */
descent = GET_BE_WORD(os2 + 76); /* usWinDescent */
}
if(ascent + descent == 0)
{
if(GetFontData(hdc, MS_MAKE_TAG('h','h','e','a'), 0, hhea, sizeof(hhea)) == sizeof(hhea))
{
ascent = (signed short)GET_BE_WORD(hhea + 4); /* Ascender */
descent = -(signed short)GET_BE_WORD(hhea + 6); /* Descender */
}
}
if(ascent + descent == 0) return height;
get_bbox(hdc, NULL, &emsize);
return MulDiv(emsize, height, ascent + descent);
}
static inline float ps_round(float f)
{
return (f > 0) ? (f + 0.5) : (f - 0.5);
}
/****************************************************************************
* PSDRV_WriteSetDownloadFont
*
* Write setfont for download font.
*
*/
BOOL PSDRV_WriteSetDownloadFont(PHYSDEV dev)
{
PSDRV_PDEVICE *physDev = get_psdrv_dev( dev );
char *ps_name;
LPOUTLINETEXTMETRICA potm;
DWORD len = GetOutlineTextMetricsA(dev->hdc, 0, NULL);
DOWNLOAD *pdl;
LOGFONTW lf;
UINT ppem;
XFORM xform;
assert(physDev->font.fontloc == Download);
if (!GetObjectW( GetCurrentObject(dev->hdc, OBJ_FONT), sizeof(lf), &lf ))
return FALSE;
potm = HeapAlloc(GetProcessHeap(), 0, len);
if (!potm)
return FALSE;
GetOutlineTextMetricsA(dev->hdc, len, potm);
get_download_name(dev, potm, &ps_name);
physDev->font.fontinfo.Download = is_font_downloaded(physDev, ps_name);
ppem = calc_ppem_for_height(dev->hdc, lf.lfHeight);
/* Retrieve the world -> device transform */
GetTransform(dev->hdc, 0x204, &xform);
if(GetGraphicsMode(dev->hdc) == GM_COMPATIBLE)
{
if (xform.eM22 < 0) physDev->font.escapement = -physDev->font.escapement;
xform.eM11 = xform.eM22 = fabs(xform.eM22);
xform.eM21 = xform.eM12 = 0;
}
physDev->font.size.xx = ps_round(ppem * xform.eM11);
physDev->font.size.xy = ps_round(ppem * xform.eM12);
physDev->font.size.yx = -ps_round(ppem * xform.eM21);
physDev->font.size.yy = -ps_round(ppem * xform.eM22);
physDev->font.underlineThickness = potm->otmsUnderscoreSize;
physDev->font.underlinePosition = potm->otmsUnderscorePosition;
physDev->font.strikeoutThickness = potm->otmsStrikeoutSize;
physDev->font.strikeoutPosition = potm->otmsStrikeoutPosition;
if(physDev->font.fontinfo.Download == NULL) {
RECT bbox;
UINT emsize;
if (!get_bbox(dev->hdc, &bbox, &emsize)) {
HeapFree(GetProcessHeap(), 0, potm);
return FALSE;
}
if(!is_room_for_font(physDev))
PSDRV_EmptyDownloadList(dev, TRUE);
pdl = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*pdl));
pdl->ps_name = HeapAlloc(GetProcessHeap(), 0, strlen(ps_name)+1);
strcpy(pdl->ps_name, ps_name);
pdl->next = NULL;
if(physDev->pi->ppd->TTRasterizer == RO_Type42) {
pdl->typeinfo.Type42 = T42_download_header(dev, ps_name, &bbox, emsize);
pdl->type = Type42;
}
if(pdl->typeinfo.Type42 == NULL) {
pdl->typeinfo.Type1 = T1_download_header(dev, ps_name, &bbox, emsize);
pdl->type = Type1;
}
pdl->next = physDev->downloaded_fonts;
physDev->downloaded_fonts = pdl;
physDev->font.fontinfo.Download = pdl;
if(pdl->type == Type42) {
char g_name[MAX_G_NAME + 1];
get_glyph_name(dev->hdc, 0, g_name);
T42_download_glyph(dev, pdl, 0, g_name);
}
}
PSDRV_WriteSetFont(dev, ps_name, physDev->font.size, physDev->font.escapement);
HeapFree(GetProcessHeap(), 0, ps_name);
HeapFree(GetProcessHeap(), 0, potm);
return TRUE;
}
void get_glyph_name(HDC hdc, WORD index, char *name)
{
/* FIXME */
sprintf(name, "g%04x", index);
return;
}
/****************************************************************************
* PSDRV_WriteDownloadGlyphShow
*
* Download and write out a number of glyphs
*
*/
BOOL PSDRV_WriteDownloadGlyphShow(PHYSDEV dev, WORD *glyphs,
UINT count)
{
PSDRV_PDEVICE *physDev = get_psdrv_dev( dev );
UINT i;
char g_name[MAX_G_NAME + 1];
assert(physDev->font.fontloc == Download);
switch(physDev->font.fontinfo.Download->type) {
case Type42:
for(i = 0; i < count; i++) {
get_glyph_name(dev->hdc, glyphs[i], g_name);
T42_download_glyph(dev, physDev->font.fontinfo.Download, glyphs[i], g_name);
PSDRV_WriteGlyphShow(dev, g_name);
}
break;
case Type1:
for(i = 0; i < count; i++) {
get_glyph_name(dev->hdc, glyphs[i], g_name);
T1_download_glyph(dev, physDev->font.fontinfo.Download, glyphs[i], g_name);
PSDRV_WriteGlyphShow(dev, g_name);
}
break;
default:
ERR("Type = %d\n", physDev->font.fontinfo.Download->type);
assert(0);
}
return TRUE;
}
/****************************************************************************
* PSDRV_EmptyDownloadList
*
* Clear the list of downloaded fonts
*
*/
BOOL PSDRV_EmptyDownloadList(PHYSDEV dev, BOOL write_undef)
{
PSDRV_PDEVICE *physDev = get_psdrv_dev( dev );
DOWNLOAD *pdl, *old;
static const char undef[] = "/%s findfont 40 scalefont setfont /%s undefinefont\n";
char buf[sizeof(undef) + 200];
const char *default_font = physDev->pi->ppd->DefaultFont ?
physDev->pi->ppd->DefaultFont : "Courier";
if(physDev->font.fontloc == Download) {
physDev->font.set = FALSE;
physDev->font.fontinfo.Download = NULL;
}
pdl = physDev->downloaded_fonts;
physDev->downloaded_fonts = NULL;
while(pdl) {
if(write_undef) {
sprintf(buf, undef, default_font, pdl->ps_name);
PSDRV_WriteSpool(dev, buf, strlen(buf));
}
switch(pdl->type) {
case Type42:
T42_free(pdl->typeinfo.Type42);
break;
case Type1:
T1_free(pdl->typeinfo.Type1);
break;
default:
ERR("Type = %d\n", pdl->type);
assert(0);
}
HeapFree(GetProcessHeap(), 0, pdl->ps_name);
old = pdl;
pdl = pdl->next;
HeapFree(GetProcessHeap(), 0, old);
}
return TRUE;
}
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