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Diffstat (limited to 'fonttosfnt.h')
| -rw-r--r-- | fonttosfnt.h | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/fonttosfnt.h b/fonttosfnt.h new file mode 100644 index 0000000..128d2cc --- /dev/null +++ b/fonttosfnt.h @@ -0,0 +1,178 @@ +/* +Copyright (c) 2002-2003 by Juliusz Chroboczek + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ +/* $XFree86: xc/programs/fonttosfnt/fonttosfnt.h,v 1.5 2003/11/21 05:22:09 dawes Exp $ */ + +#ifndef _FONTTOSFNT_H_ +#define _FONTTOSFNT_H_ 1 + +#include <stdarg.h> +#include <ft2build.h> +#include FT_FREETYPE_H + +#define ROUND(x) ((double)(int)((x) + 0.5)) + +extern int verbose_flag; +extern int glyph_flag; +extern int metrics_flag; +extern int crop_flag; +extern int bit_aligned_flag; +extern int reencode_flag; + +#define FONT_SEGMENT_SIZE 128 +#define FONT_CODES 0x10000 + +#define FACE_BOLD 1 +#define FACE_ITALIC 2 +#define FACE_SYMBOL 4 + +#define STRIKE_BITMAP(s, i) \ + ((s)->bitmaps[(i)/FONT_SEGMENT_SIZE] ? \ + (s)->bitmaps[(i)/FONT_SEGMENT_SIZE][(i)%FONT_SEGMENT_SIZE] : \ + NULL) + +#define SAME_METRICS(b1, b2) \ + ((b1)->advanceWidth == (b2)->advanceWidth && \ + (b1)->horiBearingX == (b2)->horiBearingX && \ + (b1)->horiBearingY == (b2)->horiBearingY && \ + (b1)->width == (b2)->width && \ + (b1)->height == (b2)->height) + +/* bit at (x, y) of raster r with stride s */ +#define BITREF(r, s, x, y) \ + (((r)[(y) * (s) + (x) / 8] & (1 << (7 - (x) % 8))) != 0) + +#define ONE_HALF (1 << 15) +#define TWO_SIXTEENTH (1 << 16) + +#define UNITS_PER_EM 2048 + +#define EPSILON 0.000000001 +#define FLOOR(x) ((x) < 0.0 ? -(int)(-(x)) : (x)) +#define CEIL(x) FLOOR((x) + 1.0 - EPSILON) + +/* Convert a fixed-point value into FUnits */ +#define FONT_UNITS(x) \ + FLOOR(((double)(x)) / TWO_SIXTEENTH * UNITS_PER_EM + 0.5) +#define FONT_UNITS_FLOOR(x) \ + FLOOR(((double)(x)) / TWO_SIXTEENTH * UNITS_PER_EM) +#define FONT_UNITS_CEIL(x) \ + CEIL(((double)(x)) / TWO_SIXTEENTH * UNITS_PER_EM) + +typedef struct _FontNameEntry { + int nid; /* name id */ + int size; /* bytes in value */ + char *value; +} FontNameEntryRec, *FontNameEntryPtr; + +typedef struct _Font { + int numNames; + struct _FontNameEntry *names; + int flags; + int weight; /* as in the OS/2 table */ + int width; /* as in the OS/2 table */ + int italicAngle; /* degrees c-clockwise from the vertical */ + int underlinePosition; + int underlineThickness; + unsigned foundry; + struct _Strike *strikes; +} FontRec, *FontPtr; + +typedef struct _Strike { + int sizeX; + int sizeY; + struct _Bitmap ***bitmaps; + struct _Strike *next; + int numSbits; + int bitmapSizeTableLocation; + int indexSubTableLocation; + struct _IndexSubTable *indexSubTables; +} StrikeRec, *StrikePtr; + +typedef struct _Bitmap { + int index; + int advanceWidth; + int horiBearingX; + int horiBearingY; + int width; + int height; + int stride; + char *raster; + int location; +} BitmapRec, *BitmapPtr; + +typedef struct _IndexSubTable { + int location; + int firstGlyphIndex; + int lastGlyphIndex; + int constantMetrics; + int lastLocation; + struct _IndexSubTable *next; +} IndexSubTableRec, *IndexSubTablePtr; + +typedef struct _Cmap { + int startCode; + int endCode; + int index; + struct _Cmap *next; + int maxindex; /* only in the head segment*/ + int *inverse; +} CmapRec, *CmapPtr; + +FontPtr makeFont(void); +StrikePtr makeStrike(FontPtr, int, int); +BitmapPtr makeBitmap(StrikePtr, int, + int, int, int, int, int, int, + unsigned char*, int); +IndexSubTablePtr makeIndexSubTables(StrikePtr, CmapPtr); +int fontIndex(FontPtr, int); +CmapPtr makeCmap(FontPtr); +int findIndex(CmapPtr, int); +int findCode(CmapPtr, int); +BitmapPtr strikeBitmapIndex(StrikePtr, CmapPtr, int); +void strikeMetrics(StrikePtr, int*, int*, int*, int*, int*); +int glyphMetrics(FontPtr, int, int*, int*, int*, int*, int*); +void fontMetrics(FontPtr, int*, int*, int*, int*, int*); +int maxIndex(CmapPtr); + +int readFile(char *filename, FontPtr); +int writeFile(char *filename, FontPtr); + +/* util.c */ + +#define PROP_ATOM 1 +#define PROP_INTEGER 2 +#define PROP_CARDINAL 3 + +char *sprintf_reliable(char *f, ...); +char *vsprintf_reliable(char *f, va_list args); +char *makeUTF16(char *); +unsigned makeName(char*); +int macTime(int *, unsigned *); +unsigned faceFoundry(FT_Face); +char *faceEncoding(FT_Face); +int faceFlags(FT_Face); +int faceWeight(FT_Face); +int faceWidth(FT_Face); +int faceItalicAngle(FT_Face); +int degreesToFraction(int, int*, int*); + +#endif /* _FONTTOSFNT_H_ */ |