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Rewrite TrueType font metric parsing code.

This commit is contained in:
Ian Pilcher 2001-07-26 21:42:45 +00:00 committed by Alexandre Julliard
parent 67f0a70c33
commit 42e052d405
5 changed files with 357 additions and 378 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
dlls/wineps/afm.c
View File

@ -497,10 +497,13 @@ const AFM *PSDRV_FindAFMinList(FONTFAMILY *head, char *name)
*
* PSDRV_AddAFMtoList
*
* Adds an afm to the list whose head is pointed to by head. Creates new
* family node if necessary and always creates a new AFMLISTENTRY.
* Adds an afm to the list whose head is pointed to by head. Creates new
* family node if necessary and always creates a new AFMLISTENTRY.
*
* Returns FALSE for memory allocation error; returns TRUE, but sets *p_added
* to FALSE, for duplicate.
*/
BOOL PSDRV_AddAFMtoList(FONTFAMILY **head, const AFM *afm)
BOOL PSDRV_AddAFMtoList(FONTFAMILY **head, const AFM *afm, BOOL *p_added)
{
FONTFAMILY *family = *head;
FONTFAMILY **insert = head;
@ -535,6 +538,7 @@ BOOL PSDRV_AddAFMtoList(FONTFAMILY **head, const AFM *afm)
}
strcpy( family->FamilyName, afm->FamilyName );
family->afmlist = newafmle;
*p_added = TRUE;
return TRUE;
}
else {
@ -543,6 +547,7 @@ BOOL PSDRV_AddAFMtoList(FONTFAMILY **head, const AFM *afm)
if (!strcmp(tmpafmle->afm->FontName, afm->FontName)) {
WARN("Ignoring duplicate FontName '%s'\n", afm->FontName);
HeapFree(PSDRV_Heap, 0, newafmle);
*p_added = FALSE;
return TRUE; /* not a fatal error */
}
tmpafmle = tmpafmle->next;
@ -555,6 +560,7 @@ BOOL PSDRV_AddAFMtoList(FONTFAMILY **head, const AFM *afm)
tmpafmle->next = newafmle;
*p_added = TRUE;
return TRUE;
}
@ -834,14 +840,19 @@ static VOID CalcWindowsMetrics(AFM *afm)
static BOOL AddBuiltinAFMs()
{
int i = 0;
const AFM *const *afm = PSDRV_BuiltinAFMs;
while (PSDRV_BuiltinAFMs[i] != NULL)
while (*afm != NULL)
{
if (PSDRV_AddAFMtoList(&PSDRV_AFMFontList, PSDRV_BuiltinAFMs[i])
== FALSE)
BOOL added;
if (PSDRV_AddAFMtoList(&PSDRV_AFMFontList, *afm, &added) == FALSE)
return FALSE;
++i;
if (added == FALSE)
TRACE("Ignoring built-in font %s\n", (*afm)->FontName);
++afm;
}
return TRUE;
@ -861,6 +872,7 @@ static BOOL AddBuiltinAFMs()
static BOOL PSDRV_ReadAFMDir(const char* afmdir) {
DIR *dir;
const AFM *afm;
BOOL added;
dir = opendir(afmdir);
if (dir) {
@ -881,7 +893,7 @@ static BOOL PSDRV_ReadAFMDir(const char* afmdir) {
TRACE("loading AFM %s\n",afmfn);
afm = PSDRV_AFMParse(afmfn);
if (afm) {
if (PSDRV_AddAFMtoList(&PSDRV_AFMFontList, afm) == FALSE) {
if (PSDRV_AddAFMtoList(&PSDRV_AFMFontList, afm, &added) == FALSE) {
closedir(dir);
return FALSE;
}
@ -908,6 +920,7 @@ BOOL PSDRV_GetFontMetrics(void)
char value[256];
HKEY hkey;
DWORD type, key_len, value_len;
BOOL added;
if (PSDRV_GlyphListInit() != 0)
return FALSE;
@ -924,7 +937,7 @@ BOOL PSDRV_GetFontMetrics(void)
const AFM* afm = PSDRV_AFMParse(value);
if (afm) {
if (PSDRV_AddAFMtoList(&PSDRV_AFMFontList, afm) == FALSE) {
if (PSDRV_AddAFMtoList(&PSDRV_AFMFontList, afm, &added) == FALSE) {
RegCloseKey(hkey);
return FALSE;
}

3
dlls/wineps/init.c
View File

@ -620,7 +620,8 @@ PRINTERINFO *PSDRV_FindPrinterInfo(LPCSTR name)
"ignoring\n", font->Name);
}
else {
if (PSDRV_AddAFMtoList(&pi->Fonts, afm) == FALSE) {
BOOL added;
if (PSDRV_AddAFMtoList(&pi->Fonts, afm, &added) == FALSE) {
PSDRV_FreeAFMList(pi->Fonts);
goto cleanup;
}

2
dlls/wineps/ps.c
View File

@ -112,8 +112,10 @@ static char psrrectangle[] = /* x, y, width, height, -width */
"%d 0 rlineto\n"
"closepath\n";
#if 0
static char psshow[] = /* string */
"(%s) show\n";
#endif
static const char psglyphshow[] = /* glyph name */
"/%s glyphshow\n";

3
dlls/wineps/psdrv.h
View File

@ -298,7 +298,8 @@ extern BOOL PSDRV_GetFontMetrics(void);
extern PPD *PSDRV_ParsePPD(char *fname);
extern PRINTERINFO *PSDRV_FindPrinterInfo(LPCSTR name);
extern const AFM *PSDRV_FindAFMinList(FONTFAMILY *head, char *name);
extern BOOL PSDRV_AddAFMtoList(FONTFAMILY **head, const AFM *afm);
extern BOOL PSDRV_AddAFMtoList(FONTFAMILY **head, const AFM *afm,
BOOL *p_added);
extern void PSDRV_FreeAFMList( FONTFAMILY *head );
extern BOOL WINAPI PSDRV_Init(HINSTANCE hinst, DWORD reason, LPVOID reserved);

694
dlls/wineps/truetype.c
View File

@ -4,6 +4,13 @@
*
* Copyright 2001 Ian Pilcher
*
*
* NOTE: Many of the functions in this file can return either fatal errors
* (memory allocation failure or unexpected FreeType error) or non-fatal
* errors (unusable font file). Fatal errors are indicated by returning
* FALSE; see individual function descriptions for how they indicate non-
* fatal errors.
*
*/
#include "config.h"
@ -37,6 +44,7 @@
#include <dirent.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include "winnt.h"
#include "winerror.h"
@ -46,41 +54,27 @@
DEFAULT_DEBUG_CHANNEL(psdrv);
#define REQUIRED_FACE_FLAGS ( FT_FACE_FLAG_SCALABLE | \
FT_FACE_FLAG_HORIZONTAL | \
FT_FACE_FLAG_SFNT | \
FT_FACE_FLAG_GLYPH_NAMES )
static FT_Library library;
static FT_Face face;
static FT_CharMap charmap;
static TT_Header *head;
static TT_Postscript *post;
static TT_OS2 *os2;
static TT_HoriHeader *hhea;
/* This is now officially a pain in the ass! */
typedef struct
{
LPSTR FontName;
LPSTR FullName;
LPSTR FamilyName;
LPSTR EncodingScheme;
} AFMSTRINGS;
#define GLYPH_LOAD_FLAGS ( FT_LOAD_NO_SCALE | \
FT_LOAD_IGNORE_TRANSFORM | \
FT_LOAD_LINEAR_DESIGN )
/*******************************************************************************
*
* FindCharMap
*
* Sets charmap and points afm->EncodingScheme to encoding name (in driver
* heap). Leaves both uninitialized if font contains no Windows encoding.
* Finds Windows character map and creates "EncodingScheme" string. Returns
* FALSE to indicate memory allocation or FreeType error; sets *p_charmap to
* NULL if no Windows encoding is present.
*
* Returns FALSE to indicate memory allocation error.
* Returns Unicode character map if present; otherwise uses the first Windows
* character map found.
*
*/
static const char *encoding_names[7] =
static const LPCSTR encoding_names[7] =
{
"WindowsSymbol", /* TT_MS_ID_SYMBOL_CS */
"WindowsUnicode", /* TT_MS_ID_UNICODE_CS */
@ -89,14 +83,14 @@ static const char *encoding_names[7] =
"WindowsBig5", /* TT_MS_ID_BIG_5 */
"WindowsWansung", /* TT_MS_ID_WANSUNG */
"WindowsJohab" /* TT_MS_ID_JOHAB */
/* "WindowsUnknown65535" is the longest possible (encoding_id is a UShort) */
};
static BOOL FindCharMap(AFM *afm, AFMSTRINGS *str)
static BOOL FindCharMap(FT_Face face, FT_CharMap *p_charmap, LPSTR *p_sz)
{
FT_Int i;
FT_Error error;
charmap = NULL;
FT_CharMap charmap = NULL;
for (i = 0; i < face->num_charmaps; ++i)
{
@ -104,82 +98,72 @@ static BOOL FindCharMap(AFM *afm, AFMSTRINGS *str)
continue;
if (face->charmaps[i]->encoding_id == TT_MS_ID_UNICODE_CS)
{
{
charmap = face->charmaps[i];
break;
}
if (charmap == NULL)
charmap = face->charmaps[i];
}
*p_charmap = charmap;
if (charmap == NULL)
return TRUE;
{
WARN("No Windows character map found\n");
return TRUE;
}
error = FT_Set_Charmap(face, charmap);
if (error != FT_Err_Ok)
{
ERR("%s returned %i\n", "FT_Set_CharMap", error);
ERR("%s returned %i\n", "FT_Set_Charmap", error);
return FALSE;
}
*p_sz = HeapAlloc(PSDRV_Heap, 0, sizeof("WindowsUnknown65535"));
if (*p_sz == NULL)
return FALSE;
if (charmap->encoding_id < 7)
{
if (!(str->EncodingScheme = HeapAlloc(PSDRV_Heap, 0,
strlen(encoding_names[charmap->encoding_id])+1 )))
return FALSE;
strcpy( str->EncodingScheme, encoding_names[charmap->encoding_id] );
}
strcpy(*p_sz, encoding_names[charmap->encoding_id]);
else
{
str->EncodingScheme =
HeapAlloc(PSDRV_Heap, 0, sizeof("WindowsUnknown65535"));
if (str->EncodingScheme == NULL)
return FALSE;
sprintf(str->EncodingScheme, "%s%u", "WindowsUnknown",
charmap->encoding_id);
}
afm->EncodingScheme = str->EncodingScheme;
sprintf(*p_sz, "%s%u", "WindowsUnknown", charmap->encoding_id);
return TRUE;
}
/*******************************************************************************
* NameTableString
* MSTTStrToSz
*
* Converts a name table string to a null-terminated character string. The
* space for the character string is allocated from the driver heap.
* Converts a string in the TrueType NAME table to a null-terminated ASCII
* character string. Space for the string is allocated from the driver heap.
* Only handles platform_id = 3 (TT_PLATFORM_MICROSOFT) strings (16-bit, big
* endian). It also only handles ASCII character codes (< 128).
*
* This function handles only platform_id = 3 (TT_PLATFORM_MICROSOFT) -- 16-bit
* big-endian strings. It also only handles ASCII character codes (< 128).
*
* This function will set *sz to NULL if it cannot parse the string, but it
* will only return FALSE in the event of an unexpected error (memory
* allocation failure).
* Sets *p_sz to NULL if string cannot be converted; only returns FALSE for
* memory allocation failure.
*
*/
static BOOL NameTableString(LPSTR *sz, const FT_SfntName *name)
{
FT_UShort i, len, *ws;
LPSTR s;
static BOOL MSTTStrToSz(const FT_SfntName *name, LPSTR *p_sz)
{
FT_UShort i;
INT len;
USHORT *wsz;
LPSTR sz;
if (name->platform_id != TT_PLATFORM_MICROSOFT)
{
ERR("Unsupported encoding %i\n", name->platform_id);
return FALSE; /* should never get here */
}
len = name->string_len / 2; /* # of 16-bit chars */
len = name->string_len / 2;
*sz = s = HeapAlloc(PSDRV_Heap, 0, len + 1);
if (s == NULL)
*p_sz = sz = HeapAlloc(PSDRV_Heap, 0, len + 1);
if (sz == NULL)
return FALSE;
ws = (FT_UShort *)(name->string);
for (i = 0; i < len; ++i, ++s, ++ws)
wsz = (USHORT *)(name->string);
for (i = 0; i < len; ++i, ++sz, ++wsz)
{
FT_UShort wc = *ws;
USHORT wc = *wsz;
#ifndef WORDS_BIGENDIAN
wc = (wc >> 8) | (wc << 8);
@ -188,39 +172,42 @@ static BOOL NameTableString(LPSTR *sz, const FT_SfntName *name)
if (wc > 127)
{
WARN("Non-ASCII character 0x%.4x\n", wc);
HeapFree(PSDRV_Heap, 0, *sz);
*sz = NULL;
HeapFree(PSDRV_Heap, 0, *p_sz);
*p_sz = NULL;
return TRUE;
}
*s = (CHAR)wc;
*sz = (CHAR)wc;
}
*s = '\0';
*sz = '\0';
return TRUE;
}
/*******************************************************************************
* ReadNameTable
* FindMSTTString
*
* Reads various font names from the TrueType 'NAME' table. Currently looks
* for U.S. English names only,
* Finds the requested Microsoft platform string in the TrueType NAME table and
* converts it to a null-terminated ASCII string. Currently looks for U.S.
* English names only.
*
* May leave a pointer uninitialized if the desired string is not present;
* returns FALSE only in the event of an unexpected error.
* Sets string to NULL if not present or cannot be converted; returns FALSE
* only for memory allocation failure.
*
*/
static BOOL ReadNameTable(AFM *afm, AFMSTRINGS *str)
static BOOL FindMSTTString(FT_Face face, FT_CharMap charmap, FT_UShort name_id,
LPSTR *p_sz)
{
FT_UInt numStrings, stringIndex;
FT_SfntName name;
FT_Error error;
numStrings = FT_Get_Sfnt_Name_Count(face);
FT_UInt num_strings, string_index;
FT_SfntName name;
FT_Error error;
for (stringIndex = 0; stringIndex < numStrings; ++stringIndex)
num_strings = FT_Get_Sfnt_Name_Count(face);
for (string_index = 0; string_index < num_strings; ++string_index)
{
error = FT_Get_Sfnt_Name(face, stringIndex, &name);
error = FT_Get_Sfnt_Name(face, string_index, &name);
if (error != FT_Err_Ok)
{
ERR("%s returned %i\n", "FT_Get_Sfnt_Name", error);
@ -229,36 +216,22 @@ static BOOL ReadNameTable(AFM *afm, AFMSTRINGS *str)
/* FIXME - Handle other languages? */
if (name.language_id != TT_MS_LANGID_ENGLISH_UNITED_STATES ||
name.platform_id != charmap->platform_id ||
if (name.platform_id != TT_PLATFORM_MICROSOFT ||
name.language_id != TT_MS_LANGID_ENGLISH_UNITED_STATES)
continue;
if (name.platform_id != charmap->platform_id ||
name.encoding_id != charmap->encoding_id)
continue;
switch (name.name_id)
{
case TT_NAME_ID_FONT_FAMILY:
if (NameTableString(&(str->FamilyName), &name) == FALSE)
return FALSE;
afm->FamilyName = str->FamilyName;
break;
if (name.name_id != name_id)
continue;
case TT_NAME_ID_FULL_NAME:
if (NameTableString(&(str->FullName), &name) == FALSE)
return FALSE;
afm->FullName = str->FullName;
break;
case TT_NAME_ID_PS_NAME:
if (NameTableString(&(str->FontName), &name) == FALSE)
return FALSE;
afm->FontName = str->FontName;
break;
}
return MSTTStrToSz(&name, p_sz);
}
*p_sz = NULL; /* didn't find it */
return TRUE;
}
@ -266,50 +239,49 @@ static BOOL ReadNameTable(AFM *afm, AFMSTRINGS *str)
* PSUnits
*
* Convert TrueType font units (relative to font em square) to PostScript
* units. This is defined as a macro, so it can handle different TrueType
* data types as inputs.
* units.
*
*/
#define PSUnits(x) (((float)(x)) * 1000.0 / ((float)(head->Units_Per_EM)))
inline static float PSUnits(LONG x, USHORT em_size)
{
return 1000.0 * (float)x / (float)em_size;
}
/*******************************************************************************
* ReadMetricsTables
* StartAFM
*
* Reads basic font metrics from the 'head', 'post', and 'OS/2' tables.
* Returns FALSE if any table is missing.
* Allocates space for the AFM on the driver heap and reads basic font metrics
* from the HEAD, POST, HHEA, and OS/2 tables. Returns FALSE for memory
* allocation error; sets *p_afm to NULL if required information is missing.
*
*/
static BOOL ReadMetricsTables(AFM *afm)
*/
static BOOL StartAFM(FT_Face face, AFM **p_afm)
{
TT_Header *head;
TT_Postscript *post;
TT_OS2 *os2;
TT_HoriHeader *hhea;
USHORT em_size;
AFM *afm;
head = FT_Get_Sfnt_Table(face, ft_sfnt_head);
post = FT_Get_Sfnt_Table(face, ft_sfnt_post);
hhea = FT_Get_Sfnt_Table(face, ft_sfnt_hhea);
os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2);
hhea = FT_Get_Sfnt_Table(face, ft_sfnt_hhea);
if (head == NULL || post == NULL || hhea == NULL || os2 == NULL)
return FALSE;
if (head == NULL || post == NULL || os2 == NULL || hhea == NULL ||
os2->version == 0xffff) /* old Macintosh font */
{
WARN("Required table(s) missing\n");
*p_afm = NULL;
return TRUE;
}
if (os2->version == 0xffff) /* Old Macintosh font */
return FALSE;
*p_afm = afm = HeapAlloc(PSDRV_Heap, 0, sizeof(*afm));
if (afm == NULL)
return FALSE;
afm->Weight = os2->usWeightClass;
afm->ItalicAngle = ((float)(post->italicAngle)) / 65536.0;
afm->IsFixedPitch = (post->isFixedPitch == 0) ? FALSE : TRUE;
afm->UnderlinePosition = PSUnits(post->underlinePosition);
afm->UnderlineThickness = PSUnits(post->underlineThickness);
afm->FontBBox.llx = PSUnits(head->xMin);
afm->FontBBox.lly = PSUnits(head->yMin);
afm->FontBBox.urx = PSUnits(head->xMax);
afm->FontBBox.ury = PSUnits(head->yMax);
/* CapHeight & XHeight set by ReadCharMetrics */
afm->Ascender = PSUnits(os2->sTypoAscender);
afm->Descender = PSUnits(os2->sTypoDescender);
afm->FullAscender = afm->FontBBox.ury; /* get rid of this */
afm->WinMetrics.usUnitsPerEm = head->Units_Per_EM;
afm->WinMetrics.usUnitsPerEm = em_size = head->Units_Per_EM;
afm->WinMetrics.sAscender = hhea->Ascender;
afm->WinMetrics.sDescender = hhea->Descender;
afm->WinMetrics.sLineGap = hhea->Line_Gap;
@ -319,6 +291,23 @@ static BOOL ReadMetricsTables(AFM *afm)
afm->WinMetrics.usWinAscent = os2->usWinAscent;
afm->WinMetrics.usWinDescent = os2->usWinDescent;
afm->WinMetrics.sAvgCharWidth = os2->xAvgCharWidth;
afm->Weight = os2->usWeightClass;
afm->ItalicAngle = ((float)(post->italicAngle)) / 65536.0;
afm->IsFixedPitch = (post-> isFixedPitch == 0) ? FALSE : TRUE;
afm->UnderlinePosition = PSUnits(post->underlinePosition, em_size);
afm->UnderlineThickness = PSUnits(post->underlineThickness, em_size);
afm->FontBBox.llx = PSUnits(head->xMin, em_size);
afm->FontBBox.lly = PSUnits(head->yMin, em_size);
afm->FontBBox.urx = PSUnits(head->xMax, em_size);
afm->FontBBox.ury = PSUnits(head->yMax, em_size);
afm->Ascender = PSUnits(os2->sTypoAscender, em_size);
afm->Descender = PSUnits(os2->sTypoDescender, em_size);
afm->FullAscender = afm->FontBBox.ury; /* get rid of this */
/* CapHeight & XHeight set by ReadCharMetrics */
return TRUE;
}
@ -326,43 +315,38 @@ static BOOL ReadMetricsTables(AFM *afm)
/*******************************************************************************
* ReadCharMetrics
*
* Reads metrics for each glyph in a TrueType font.
* Reads metrics for each glyph in a TrueType font. Returns false for memory
* allocation or FreeType error; sets *p_metrics to NULL for non-fatal error.
*
*/
static AFMMETRICS *ReadCharMetrics(AFM *afm)
static BOOL ReadCharMetrics(FT_Face face, AFM *afm, AFMMETRICS **p_metrics)
{
FT_ULong charcode, index;
AFMMETRICS *metrics;
FT_ULong charcode, index;
AFMMETRICS *metrics;
USHORT em_size = afm->WinMetrics.usUnitsPerEm;
/*
* There does not seem to be an easy way to get the number of characters
* in an encoding out of a TrueType font.
*/
for (charcode = 0, index = 0; charcode < 65536; ++charcode)
{
if (FT_Get_Char_Index(face, charcode) != 0)
++index;
}
++index; /* count # of glyphs */
afm->NumofMetrics = index;
metrics = HeapAlloc(PSDRV_Heap, 0, index * sizeof(AFMMETRICS));
*p_metrics = metrics = HeapAlloc(PSDRV_Heap, 0, index * sizeof(*metrics));
if (metrics == NULL)
return NULL;
return FALSE;
for (charcode = 0, index = 0; charcode <= 65536; ++charcode)
for (charcode = 0, index = 0; charcode < 65536; ++charcode)
{
FT_UInt glyph_index = FT_Get_Char_Index(face, charcode);
FT_Error error;
FT_Glyph glyph;
FT_BBox bbox;
char buffer[256];
CHAR buffer[128]; /* for glyph names */
if (glyph_index == 0)
continue;
error = FT_Load_Glyph(face, glyph_index, FT_LOAD_NO_SCALE |
FT_LOAD_IGNORE_TRANSFORM | FT_LOAD_LINEAR_DESIGN);
error = FT_Load_Glyph(face, glyph_index, GLYPH_LOAD_FLAGS);
if (error != FT_Err_Ok)
{
ERR("%s returned %i\n", "FT_Load_Glyph", error);
@ -378,278 +362,256 @@ static AFMMETRICS *ReadCharMetrics(AFM *afm)
FT_Glyph_Get_CBox(glyph, ft_glyph_bbox_unscaled, &bbox);
error = FT_Get_Glyph_Name(face, glyph_index, buffer, 255);
error = FT_Get_Glyph_Name(face, glyph_index, buffer, sizeof(buffer));
if (error != FT_Err_Ok)
{
ERR("%s returned %i\n", "FT_Get_Glyph_Name", error);
goto cleanup;
}
}
metrics[index].N = PSDRV_GlyphName(buffer);
if (metrics[index].N == NULL)
goto cleanup;;
metrics[index].C = charcode;
metrics[index].UV = charcode;
metrics[index].WX = PSUnits(face->glyph->metrics.horiAdvance);
metrics[index].B.llx = PSUnits(bbox.xMin);
metrics[index].B.lly = PSUnits(bbox.yMin);
metrics[index].B.urx = PSUnits(bbox.xMax);
metrics[index].B.ury = PSUnits(bbox.yMax);
goto cleanup;
metrics[index].C = metrics[index].UV = charcode;
metrics[index].WX = PSUnits(face->glyph->metrics.horiAdvance, em_size);
metrics[index].B.llx = PSUnits(bbox.xMin, em_size);
metrics[index].B.lly = PSUnits(bbox.yMin, em_size);
metrics[index].B.urx = PSUnits(bbox.xMax, em_size);
metrics[index].B.ury = PSUnits(bbox.yMax, em_size);
metrics[index].L = NULL;
TRACE("Metrics for '%s' WX = %f B = %f,%f - %f,%f\n",
metrics[index].N->sz, metrics[index].WX,
metrics[index].B.llx, metrics[index].B.lly,
metrics[index].B.urx, metrics[index].B.ury);
if (charcode == 0x0048) /* 'H' */
afm->CapHeight = PSUnits(bbox.yMax);
afm->CapHeight = metrics[index].B.ury;
if (charcode == 0x0078) /* 'x' */
afm->XHeight = PSUnits(bbox.yMax);
afm->XHeight = metrics[index].B.ury;
++index;
}
return metrics;
cleanup:
HeapFree(PSDRV_Heap, 0, metrics);
return NULL;
}
/*******************************************************************************
* ReadTrueTypeAFM
*
* Fills in AFM structure for opened TrueType font file. Returns FALSE only on
* an unexpected error (memory allocation failure or FreeType error); otherwise
* returns TRUE.
*
*/
static BOOL ReadTrueTypeAFM(AFM *afm)
{
AFMSTRINGS str = { NULL, NULL, NULL, NULL };
AFMMETRICS *metrics;
if ((face->face_flags & REQUIRED_FACE_FLAGS) != REQUIRED_FACE_FLAGS)
{
WARN("Font flags do not match requirements\n");
return TRUE;
}
if (FindCharMap(afm, &str) == FALSE)
return FALSE;
if (charmap == NULL)
{
WARN("No Windows encodings in font\n");
return TRUE;
}
TRACE("Using encoding '%s'\n", afm->EncodingScheme);
if (ReadNameTable(afm, &str) == FALSE)
{
if (str.FontName != NULL) HeapFree(PSDRV_Heap, 0, str.FontName);
if (str.FullName != NULL) HeapFree(PSDRV_Heap, 0, str.FullName);
if (str.FamilyName != NULL) HeapFree(PSDRV_Heap, 0, str.FamilyName);
HeapFree(PSDRV_Heap, 0, str.EncodingScheme);
return FALSE;
}
if (str.FamilyName == NULL || str.FullName == NULL || str.FontName == NULL)
{
WARN("Required strings missing from font\n");
if (str.FontName != NULL) HeapFree(PSDRV_Heap, 0, str.FontName);
if (str.FullName != NULL) HeapFree(PSDRV_Heap, 0, str.FullName);
if (str.FamilyName != NULL) HeapFree(PSDRV_Heap, 0, str.FamilyName);
HeapFree(PSDRV_Heap, 0, str.EncodingScheme);
return TRUE;
}
if (ReadMetricsTables(afm) == FALSE) /* Non-fatal */
{
WARN("Required metrics tables missing from font\n");
return TRUE;
}
afm->Metrics = metrics = ReadCharMetrics(afm);
if (metrics == NULL)
{
HeapFree(PSDRV_Heap, 0, str.FontName);
HeapFree(PSDRV_Heap, 0, str.FullName);
HeapFree(PSDRV_Heap, 0, str.FamilyName);
HeapFree(PSDRV_Heap, 0, str.EncodingScheme);
return FALSE;
}
/* Can't do this check until character metrics are read */
if (afm->WinMetrics.sAvgCharWidth == 0)
afm->WinMetrics.sAvgCharWidth = PSDRV_CalcAvgCharWidth(afm);
if (PSDRV_AddAFMtoList(&PSDRV_AFMFontList, afm) == FALSE)
{
HeapFree(PSDRV_Heap, 0, str.FontName);
HeapFree(PSDRV_Heap, 0, str.FullName);
HeapFree(PSDRV_Heap, 0, str.FamilyName);
HeapFree(PSDRV_Heap, 0, str.EncodingScheme);
HeapFree(PSDRV_Heap, 0, metrics);
return FALSE;
}
return TRUE;
cleanup:
HeapFree(PSDRV_Heap, 0, metrics);
return FALSE;
}
/*******************************************************************************
* ReadTrueTypeFile
* BuildTrueTypeAFM
*
* Reads PostScript-style font metrics from a TrueType font file. Only returns
* FALSE for unexpected errors (memory allocation, etc.); returns TRUE if it's
* just a bad font file.
* Builds the AFM for a TrueType font and adds it to the driver font list.
* Returns FALSE only on an unexpected error (memory allocation failure or
* FreeType error).
*
*/
static BOOL ReadTrueTypeFile(LPCSTR filename)
static BOOL BuildTrueTypeAFM(FT_Face face)
{
FT_Error error;
AFM *afm;
AFM *afm;
AFMMETRICS *metrics;
LPSTR font_name, full_name, family_name, encoding_scheme;
FT_CharMap charmap;
BOOL retval, added;
retval = StartAFM(face, &afm);
if (retval == FALSE || afm == NULL)
return retval;
retval = FindCharMap(face, &charmap, &encoding_scheme);
if (retval == FALSE || charmap == NULL)
goto cleanup_afm;
retval = FindMSTTString(face, charmap, TT_NAME_ID_PS_NAME, &font_name);
if (retval == FALSE || font_name == NULL)
goto cleanup_encoding_scheme;
retval = FindMSTTString(face, charmap, TT_NAME_ID_FULL_NAME, &full_name);
if (retval == FALSE || full_name == NULL)
goto cleanup_font_name;
retval = FindMSTTString(face, charmap, TT_NAME_ID_FONT_FAMILY,
&family_name);
if (retval == FALSE || family_name == NULL)
goto cleanup_full_name;
retval = ReadCharMetrics(face, afm, &metrics);
if (retval == FALSE || metrics == NULL)
goto cleanup_family_name;
afm->EncodingScheme = encoding_scheme; afm->FontName = font_name;
afm->FullName = full_name; afm->FamilyName = family_name;
afm->Metrics = metrics;
retval = PSDRV_AddAFMtoList(&PSDRV_AFMFontList, afm, &added);
if (retval == FALSE || added == FALSE)
goto cleanup_family_name;
return TRUE;
/* clean up after fatal or non-fatal errors */
cleanup_family_name:
HeapFree(PSDRV_Heap, 0, family_name);
cleanup_full_name:
HeapFree(PSDRV_Heap, 0, full_name);
cleanup_font_name:
HeapFree(PSDRV_Heap, 0, font_name);
cleanup_encoding_scheme:
HeapFree(PSDRV_Heap, 0, encoding_scheme);
cleanup_afm:
HeapFree(PSDRV_Heap, 0, afm);
return retval;
}
/*******************************************************************************
* ReadTrueTypeFile
*
* Reads font metrics from TrueType font file. Only returns FALSE for
* unexpected errors (memory allocation failure or FreeType error).
*
*/
static BOOL ReadTrueTypeFile(FT_Library library, LPCSTR filename)
{
FT_Error error;
FT_Face face;
TRACE("%s\n", filename);
TRACE("'%s'\n", filename);
afm = HeapAlloc(PSDRV_Heap, HEAP_ZERO_MEMORY, sizeof(AFM));
if (afm == NULL)
return FALSE;
error = FT_New_Face(library, filename, 0, &face);
if (error != FT_Err_Ok)
{
WARN("FreeType error %i opening '%s'\n", error, filename);
HeapFree(PSDRV_Heap, 0, afm);
WARN("FreeType error %i opening %s\n", error, filename);
return TRUE;
}
if (ReadTrueTypeAFM(afm) == FALSE)
if ((face->face_flags & REQUIRED_FACE_FLAGS) == REQUIRED_FACE_FLAGS)
{
HeapFree(PSDRV_Heap, 0, afm);
FT_Done_Face(face);
return FALSE;
}
if (BuildTrueTypeAFM(face) == FALSE)
{
FT_Done_Face(face);
return FALSE;
}
}
else
{
WARN("Required information missing from %s\n", filename);
}
error = FT_Done_Face(face);
if (error != FT_Err_Ok)
{
ERR("%s returned %i\n", "FT_Done_Face", error);
HeapFree(PSDRV_Heap, 0, afm);
return FALSE;
}
if (afm->Metrics == NULL) /* last element to be set */
{
HeapFree(PSDRV_Heap, 0, afm);
return TRUE;
}
return TRUE;
}
/*******************************************************************************
* ReadTrueTypeDir
*
* Reads all TrueType font files in a directory.
*
*/
static BOOL ReadTrueTypeDir(FT_Library library, LPCSTR dirname)
{
struct dirent *dent;
DIR *dir;
CHAR filename[256];
dir = opendir(dirname);
if (dir == NULL)
{
WARN("'%s' opening %s\n", strerror(errno), dirname);
return TRUE;;
}
while ((dent = readdir(dir)) != NULL)
{
CHAR *file_extension = strrchr(dent->d_name, '.');
int fn_len;
if (file_extension == NULL || strcasecmp(file_extension, ".ttf") != 0)
continue;
fn_len = snprintf(filename, 256, "%s/%s", dirname, dent->d_name);
if (fn_len < 0 || fn_len > sizeof(filename) - 1)
{
WARN("Path '%s/%s' is too long\n", dirname, dent->d_name);
continue;
}
if (ReadTrueTypeFile(library, filename) == FALSE)
{
closedir(dir);
return FALSE;
}
}
closedir(dir);
return TRUE;
}
/*******************************************************************************
* PSDRV_GetTrueTypeMetrics
*
* Reads PostScript-stype font metrics from TrueType font files in directories
* listed in the [TrueType Font Directories] section of the Wine configuration
* file.
* Reads font metrics from TrueType font files in directories listed in the
* [TrueType Font Directories] section of the Wine configuration file.
*
* If this function fails, the driver will fail to initialize and the driver
* heap will be destroyed, so it's not necessary to HeapFree everything in
* that event.
* If this function fails (returns FALSE), the driver will fail to initialize
* and the driver heap will be destroyed, so it's not necessary to HeapFree
* everything in that event.
*
*/
BOOL PSDRV_GetTrueTypeMetrics(void)
{
CHAR keybuf[256], namebuf[256];
CHAR name_buf[256], value_buf[256];
INT i = 0;
FT_Error error;
FT_Library library;
HKEY hkey;
DWORD type, key_len, name_len;
DWORD type, name_len, value_len;
if(RegOpenKeyExA(HKEY_LOCAL_MACHINE,
"Software\\Wine\\Wine\\Config\\TrueType Font Directories",
0, KEY_READ, &hkey) != ERROR_SUCCESS)
return TRUE;
error = FT_Init_FreeType(&library);
if (error != FT_Err_Ok)
{
ERR("%s returned %i\n", "FT_Init_FreeType", error);
RegCloseKey(hkey);
return FALSE;
}
if(RegOpenKeyExA(HKEY_LOCAL_MACHINE,
"Software\\Wine\\Wine\\Config\\TrueType Font Directories",
0, KEY_READ, &hkey) != ERROR_SUCCESS)
goto no_metrics;
key_len = sizeof(keybuf);
name_len = sizeof(namebuf);
name_len = sizeof(name_buf);
value_len = sizeof(value_buf);
while(RegEnumValueA(hkey, i++, keybuf, &key_len, NULL, &type, namebuf,
&name_len) == ERROR_SUCCESS)
while(RegEnumValueA(hkey, i++, name_buf, &name_len, NULL, &type, value_buf,
&value_len) == ERROR_SUCCESS)
{
struct dirent *dent;
DIR *dir;
INT dnlen; /* directory name length */
namebuf[sizeof(namebuf) - 1] = '\0';
dir = opendir(namebuf);
if (dir == NULL)
value_buf[sizeof(value_buf) - 1] = '\0';
if (ReadTrueTypeDir(library, value_buf) == FALSE)
{
WARN("Error opening directory '%s'\n", namebuf);
continue;
RegCloseKey(hkey);
FT_Done_FreeType(library);
return FALSE;
}
dnlen = strlen(namebuf);
namebuf[dnlen] = '/'; /* 2 slashes is OK, 0 is not */
++dnlen;
while ((dent = readdir(dir)) != NULL)
{
INT fnlen; /* file name length */
fnlen = strlen(dent->d_name);
if (fnlen < 5 || strcasecmp(dent->d_name + fnlen - 4, ".ttf") != 0)
{
TRACE("Skipping filename '%s'\n", dent->d_name);
continue;
}
if (dnlen + fnlen + 1 > sizeof(namebuf)) /* allow for '\0' */
{
WARN("Path '%s/%s' is too long\n", namebuf, dent->d_name);
continue;
}
memcpy(namebuf + dnlen, dent->d_name, fnlen + 1);
if (ReadTrueTypeFile(namebuf) == FALSE)
{
ERR("Error reading '%s'\n", namebuf);
closedir(dir);
RegCloseKey(hkey);
FT_Done_FreeType(library);
return FALSE;
}
}
closedir(dir);
/* initialize lengths for new iteration */
key_len = sizeof(keybuf);
name_len = sizeof(namebuf);
name_len = sizeof(name_buf);
value_len = sizeof(value_buf);
}
RegCloseKey(hkey);
no_metrics:
FT_Done_FreeType(library);
return TRUE;
}