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Diffstat (limited to 'src/Type1/t1info.c')
| -rw-r--r-- | src/Type1/t1info.c | 488 |
1 files changed, 488 insertions, 0 deletions
diff --git a/src/Type1/t1info.c b/src/Type1/t1info.c new file mode 100644 index 0000000..dff6257 --- /dev/null +++ b/src/Type1/t1info.c @@ -0,0 +1,488 @@ +/* $Xorg: t1info.c,v 1.4 2001/02/09 02:04:01 xorgcvs Exp $ */ +/* Copyright International Business Machines,Corp. 1991 + * All Rights Reserved + * + * License, subject to the license given below, to use, + * copy, modify, and distribute this software * and its + * documentation for any purpose and without fee is hereby + * granted, provided that the above copyright notice appear + * in all copies and that both that copyright notice and + * this permission notice appear in supporting documentation, + * and that the name of IBM not be used in advertising or + * publicity pertaining to distribution of the software + * without specific, written prior permission. + * + * IBM PROVIDES THIS SOFTWARE "AS IS", WITHOUT ANY WARRANTIES + * OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT + * LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT OF + * THIRD PARTY RIGHTS. THE ENTIRE RISK AS TO THE QUALITY AND + * PERFORMANCE OF THE SOFTWARE, INCLUDING ANY DUTY TO SUPPORT + * OR MAINTAIN, BELONGS TO THE LICENSEE. SHOULD ANY PORTION OF + * THE SOFTWARE PROVE DEFECTIVE, THE LICENSEE (NOT IBM) ASSUMES + * THE ENTIRE COST OF ALL SERVICING, REPAIR AND CORRECTION. IN + * NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING + * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF + * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT + * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * + * Author: Carol H. Thompson IBM Almaden Research Center + * Modeled on spinfo.c by Dave Lemke, Network Computing Devices, Inc + * which contains the following copyright and permission notices: + * + * Copyright 1990, 1991 Network Computing Devices; + * Portions Copyright 1987 by Digital Equipment Corporation + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the names of Network Computing Devices or Digital + * not be used in advertising or publicity pertaining to distribution of the + * software without specific, written prior permission. Network Computing + * Devices and Digital make no representations about the suitability of this + * software for any purpose. It is provided "as is" without express or + * implied warranty. + * + * NETWORK COMPUTING DEVICES AND DIGITAL DISCLAIM ALL WARRANTIES WITH + * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES OR DIGITAL BE + * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + +Copyright 1987, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +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 OPEN GROUP 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. + +Except as contained in this notice, the name of The Open Group shall +not be used in advertising or otherwise to promote the sale, use or +other dealings in this Software without prior written authorization +from The Open Group. + +*/ + +#include <stdio.h> +#include "fntfilst.h" +#include "FSproto.h" +#include "t1intf.h" +#include <math.h> + +#define DECIPOINTSPERINCH 722.7 +#define DEFAULTRES 75 +#define DEFAULTPOINTSIZE 120 + +enum scaleType { + atom, truncate_atom, pixel_size, point_size, resolution_x, + resolution_y, average_width +}; + +typedef struct _fontProp { + char *name; + long atom; + enum scaleType type; +} fontProp; + +static fontProp fontNamePropTable[] = { /* Example: */ + { "FOUNDRY", 0, atom }, /* adobe */ + { "FAMILY_NAME", 0, atom }, /* times roman */ + { "WEIGHT_NAME", 0, atom }, /* bold */ + { "SLANT", 0, atom }, /* i */ + { "SETWIDTH_NAME", 0, atom }, /* normal */ + { "ADD_STYLE_NAME", 0, atom }, /* */ + { "PIXEL_SIZE", 0, pixel_size }, /* 18 */ + { "POINT_SIZE", 0, point_size }, /* 180 */ + { "RESOLUTION_X", 0, resolution_x }, /* 72 */ + { "RESOLUTION_Y", 0, resolution_y }, /* 72 */ + { "SPACING", 0, atom }, /* p */ + { "AVERAGE_WIDTH", 0, average_width }, /* 0 */ + { "CHARSET_REGISTRY", 0, atom }, /* ISO8859 */ + { "CHARSET_ENCODING", 0, truncate_atom } /* 1 */ +}; + +/* NOTICE: Following array is closely related to the sequence of defines + following it. */ +static fontProp extraProps[] = { + { "FONT", 0, }, + { "COPYRIGHT", 0, }, + { "RAW_PIXEL_SIZE", 0, }, + { "RAW_POINT_SIZE", 0, }, + { "RAW_ASCENT", 0, }, + { "RAW_DESCENT", 0, }, + { "RAW_AVERAGE_WIDTH", 0, }, + { "FACE_NAME", 0, } +}; + +/* this is a bit kludgy */ +#define FONTPROP 0 +#define COPYRIGHTPROP 1 +#define RAWPIXELPROP 2 +#define RAWPOINTPROP 3 +#define RAWASCENTPROP 4 +#define RAWDESCENTPROP 5 +#define RAWWIDTHPROP 6 +#define FACE_NAMEPROP 7 + +#define NNAMEPROPS (sizeof(fontNamePropTable) / sizeof(fontProp)) +#define NEXTRAPROPS (sizeof(extraProps) / sizeof(fontProp)) + +#define NPROPS (NNAMEPROPS + NEXTRAPROPS) + +/*ARGSUSED*/ +static void +FillHeader(pInfo, Vals) + FontInfoPtr pInfo; + FontScalablePtr Vals; +{ + /* OpenScalable in T1FUNCS sets the following: + pInfo->firstCol, + pInfo->firstRow, + pInfo->lastCol, and + pInfo->lastRow. */ + /* the following are ununsed + pInfo->pad. */ + + /* Items we should handle better someday +++ */ + pInfo->defaultCh = 0; + pInfo->drawDirection = LeftToRight; + if (Vals->point_matrix[0] == Vals->point_matrix[3]) + pInfo->anamorphic = 0; + else + pInfo->anamorphic = 1; + pInfo->inkMetrics = 0; /* no ink metrics here */ + pInfo->cachable = 1; /* no licensing (yet) */ +} + +static void +adjust_min_max(minc, maxc, tmp) + xCharInfo *minc, + *maxc, + *tmp; +{ +#define MINMAX(field,ci) \ + if (minc->field > (ci)->field) \ + minc->field = (ci)->field; \ + if (maxc->field < (ci)->field) \ + maxc->field = (ci)->field; + + MINMAX(ascent, tmp); + MINMAX(descent, tmp); + MINMAX(leftSideBearing, tmp); + MINMAX(rightSideBearing, tmp); + MINMAX(characterWidth, tmp); + + /* Do MINMAX for attributes field. Since that field is CARD16, + we'll cast to a signed integer */ + if ((INT16)minc->attributes > (INT16)tmp->attributes) + minc->attributes = tmp->attributes; + if ((INT16)maxc->attributes < (INT16)tmp->attributes) + maxc->attributes = tmp->attributes; + +#undef MINMAX +} + +static void +ComputeBounds(pInfo, pChars, Vals) + FontInfoPtr pInfo; + CharInfoPtr pChars; + FontScalablePtr Vals; +{ + int i; + xCharInfo minchar, maxchar; + int numchars = 0; + int totchars; + int overlap; + int maxlap; + + minchar.ascent = minchar.descent = + minchar.leftSideBearing = minchar.rightSideBearing = + minchar.characterWidth = minchar.attributes = 32767; + maxchar.ascent = maxchar.descent = + maxchar.leftSideBearing = maxchar.rightSideBearing = + maxchar.characterWidth = maxchar.attributes = -32767; + + maxlap = -32767; + totchars = pInfo->lastCol - pInfo->firstCol + 1; + pChars += pInfo->firstCol - FIRSTCOL; + pInfo->allExist = 1; + for (i = 0; i < totchars; i++,pChars++) { + xCharInfo *pmetrics = &pChars->metrics; + + if (pmetrics->attributes || + pmetrics->ascent != -pmetrics->descent || + pmetrics->leftSideBearing != pmetrics->rightSideBearing) { + numchars++; + adjust_min_max(&minchar, &maxchar, pmetrics); + overlap = pmetrics->rightSideBearing - pmetrics->characterWidth; + if (overlap > maxlap) maxlap = overlap; + } + else pInfo->allExist = 0; + } + + /* If we're monospaced, round the average width field to the + nearest pixel */ + if (minchar.characterWidth == maxchar.characterWidth) + Vals->width = minchar.characterWidth * 10; + + pInfo->maxbounds = maxchar; + pInfo->minbounds = minchar; + pInfo->ink_maxbounds = maxchar; + pInfo->ink_minbounds = minchar; + pInfo->maxOverlap = maxlap + -(minchar.leftSideBearing); + + /* Set the pInfo flags */ + /* Properties set by FontComputeInfoAccelerators: + pInfo->noOverlap; + pInfo->terminalFont; + pInfo->constantMetrics; + pInfo->constantWidth; + pInfo->inkInside; + + */ + FontComputeInfoAccelerators (pInfo); +} + +static void +ComputeProps(pInfo, Vals, Filename, sAscent, sDescent) + FontInfoPtr pInfo; + FontScalablePtr Vals; + char *Filename; + long *sAscent; + long *sDescent; +{ + int infoint; + int infoBBox[4]; + int rc; + + QueryFontLib(Filename, "isFixedPitch", &infoint, &rc); + if (!rc) { + pInfo->constantWidth = infoint; + } + QueryFontLib((char *)0, "FontBBox", infoBBox, &rc); + if (!rc) { + pInfo->fontAscent = + (int)((double)infoBBox[3] * Vals->pixel_matrix[3] + + (infoBBox[3] > 0 ? 500 : -500)) / 1000; + pInfo->fontDescent = + -(int)((double)infoBBox[1] * Vals->pixel_matrix[3] + + (infoBBox[1] > 0 ? 500 : -500)) / 1000; + *sAscent = infoBBox[3]; + *sDescent = -infoBBox[1]; + } +} + +static void +ComputeStdProps(pInfo, Vals, Filename, Fontname, sAscent, sDescent, sWidth) + FontInfoPtr pInfo; + FontScalablePtr Vals; + char *Filename; + char *Fontname; + long sAscent; + long sDescent; + long sWidth; +{ + FontPropPtr pp; + int i, + nprops; + fontProp *fpt; + char *is_str; + char *ptr1, + *ptr2; + char *ptr3; + char *infostrP; + long rc; + char scaledName[MAXFONTNAMELEN]; + + strcpy (scaledName, Fontname); + /* Fill in our copy of the fontname from the Vals structure */ + FontParseXLFDName (scaledName, Vals, FONT_XLFD_REPLACE_VALUE); + + /* This form of the properties is used by the X-client; the X-server + doesn't care what they are. */ + nprops = pInfo->nprops = NPROPS; + pInfo->isStringProp = (char *) xalloc(sizeof(char) * nprops); + pInfo->props = (FontPropPtr) xalloc(sizeof(FontPropRec) * nprops); + if (!pInfo->isStringProp || !pInfo->props) { + xfree(pInfo->isStringProp); + pInfo->isStringProp = (char *) 0; + xfree(pInfo->props); + pInfo->props = (FontPropPtr) 0; + return; + } + bzero(pInfo->isStringProp, (sizeof(char) * nprops)); + + ptr2 = scaledName; + for (i = NNAMEPROPS, pp = pInfo->props, fpt = fontNamePropTable, is_str = pInfo->isStringProp; + i; + i--, pp++, fpt++, is_str++) { + + if (*ptr2) + { + ptr1 = ptr2 + 1; + if (!(ptr2 = strchr(ptr1, '-'))) ptr2 = strchr(ptr1, '\0'); + } + + pp->name = fpt->atom; + switch (fpt->type) { + case atom: /* Just copy info from scaledName */ + *is_str = TRUE; + pp->value = MakeAtom(ptr1, ptr2 - ptr1, TRUE); + break; + case truncate_atom: + *is_str = TRUE; + for (ptr3 = ptr1; *ptr3; ptr3++) + if (*ptr3 == '[') + break; + pp->value = MakeAtom(ptr1, ptr3 - ptr1, TRUE); + break; + case pixel_size: + pp->value = (int)(fabs(Vals->pixel_matrix[3]) + .5); + break; + case point_size: + pp->value = (int)(fabs(Vals->point_matrix[3]) * 10.0 + .5); + break; + case resolution_x: + pp->value = Vals->x; + break; + case resolution_y: + pp->value = Vals->y; + break; + case average_width: + pp->value = Vals->width; + break; + } + } + + for (i = 0, fpt = extraProps; + i < NEXTRAPROPS; + i++, is_str++, pp++, fpt++) { + pp->name = fpt->atom; + switch (i) { + case FONTPROP: + *is_str = TRUE; + pp->value = MakeAtom(scaledName, strlen(scaledName), TRUE); + break; + case COPYRIGHTPROP: + *is_str = TRUE; + QueryFontLib(Filename, "Notice", &infostrP, &rc); + if (rc || !infostrP) { + infostrP = "Copyright Notice not available"; + } + pp->value = MakeAtom(infostrP, strlen(infostrP), TRUE); + break; + case FACE_NAMEPROP: + *is_str = TRUE; + QueryFontLib(Filename, "FontName", &infostrP, &rc); + if (rc || !infostrP) { + infostrP = "(unknown)"; + } + pp->value = MakeAtom(infostrP, strlen(infostrP), TRUE); + break; + case RAWPIXELPROP: + *is_str = FALSE; + pp->value = 1000; + break; + case RAWPOINTPROP: + *is_str = FALSE; + pp->value = (long)(72270.0 / (double)Vals->y + .5); + break; + case RAWASCENTPROP: + *is_str = FALSE; + pp->value = sAscent; + break; + case RAWDESCENTPROP: + *is_str = FALSE; + pp->value = sDescent; + break; + case RAWWIDTHPROP: + *is_str = FALSE; + pp->value = sWidth; + break; + } + } +} + +/*ARGSUSED*/ +int +Type1GetInfoScalable(fpe, pInfo, entry, fontName, fileName, Vals) + FontPathElementPtr fpe; + FontInfoPtr pInfo; + FontEntryPtr entry; + FontNamePtr fontName; + char *fileName; + FontScalablePtr Vals; +{ + FontPtr pfont; + int flags = 0; + long format = 0; /* It doesn't matter what format for just info */ + long fmask = 0; + int ret; + + ret = Type1OpenScalable(fpe, &pfont, flags, entry, fileName, Vals, format, fmask); + if (ret != Successful) + return ret; + *pInfo = pfont->info; + + /* XXX - Set pointers in pfont->info to NULL so they are not freed. */ + pfont->info.props = NULL; + pfont->info.isStringProp = NULL; + + Type1CloseFont(pfont); + return Successful; +} + +void +T1FillFontInfo(pFont, Vals, Filename, Fontname, sWidth) + FontPtr pFont; + FontScalablePtr Vals; + char *Filename; + char *Fontname; + long sWidth; +{ + FontInfoPtr pInfo = &pFont->info; + struct type1font *p = (struct type1font *)pFont->fontPrivate; + long sAscent, sDescent; /* Scalable 1000-pixel values */ + + FillHeader(pInfo, Vals); + + ComputeBounds(pInfo, p->glyphs, Vals); + + ComputeProps(pInfo, Vals, Filename, &sAscent, &sDescent); + ComputeStdProps(pInfo, Vals, Filename, Fontname, sAscent, sDescent, sWidth); +} + +/* Called once, at renderer registration time */ +void +T1InitStdProps() +{ + int i; + fontProp *t; + + i = sizeof(fontNamePropTable) / sizeof(fontProp); + for (t = fontNamePropTable; i; i--, t++) + t->atom = MakeAtom(t->name, (unsigned) strlen(t->name), TRUE); + i = sizeof(extraProps) / sizeof(fontProp); + for (t = extraProps; i; i--, t++) + t->atom = MakeAtom(t->name, (unsigned) strlen(t->name), TRUE); +} |