diff options
Diffstat (limited to 'libXfont/src/FreeType/ftfuncs.c')
| -rw-r--r-- | libXfont/src/FreeType/ftfuncs.c | 7867 |
1 files changed, 3928 insertions, 3939 deletions
diff --git a/libXfont/src/FreeType/ftfuncs.c b/libXfont/src/FreeType/ftfuncs.c index 655afa407..f06ebb40d 100644 --- a/libXfont/src/FreeType/ftfuncs.c +++ b/libXfont/src/FreeType/ftfuncs.c @@ -1,3939 +1,3928 @@ -/* -Copyright (c) 1997 by Mark Leisher -Copyright (c) 1998-2003 by Juliusz Chroboczek -Copyright (c) 1998 Go Watanabe, All rights reserved. -Copyright (c) 1998 Kazushi (Jam) Marukawa, All rights reserved. -Copyright (c) 1998 Takuya SHIOZAKI, All rights reserved. -Copyright (c) 1998 X-TrueType Server Project, All rights reserved. -Copyright (c) 2003-2004 After X-TT Project, All rights reserved. - -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. -*/ -/* $XdotOrg: xc/lib/font/FreeType/ftfuncs.c,v 1.11 2005/07/03 07:00:58 daniels Exp $ */ - -/* $XFree86: xc/lib/font/FreeType/ftfuncs.c,v 1.43 2004/02/07 04:37:18 dawes Exp $ */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif -#include <X11/fonts/fontmisc.h> - -#include <string.h> -#include <math.h> -#include <ctype.h> -#include <unistd.h> - -#include <X11/fonts/fntfilst.h> -#include <X11/fonts/fontutil.h> -#include <X11/fonts/FSproto.h> -#include <ft2build.h> -#include FT_FREETYPE_H -#include FT_SIZES_H -#include FT_TRUETYPE_IDS_H -#include FT_TRUETYPE_TABLES_H -#include FT_TYPE1_TABLES_H -#include FT_XFREE86_H -#include FT_BBOX_H -#include FT_TRUETYPE_TAGS_H -/* - * If you want to use FT_Outline_Get_CBox instead of - * FT_Outline_Get_BBox, define here. - */ -/* #define USE_GET_CBOX */ -#ifdef USE_GET_CBOX -#include FT_OUTLINE_H -#endif - -#include <X11/fonts/fontenc.h> -#include "ft.h" -#include "ftfuncs.h" -#include "xttcap.h" - -/* Work around FreeType bug */ -#define WORK_AROUND_UPM 2048 - -#ifndef True -#define True (-1) -#endif /* True */ -#ifndef False -#define False (0) -#endif /* False */ - -#define FLOOR64(x) ((x) & -64) -#define CEIL64(x) (((x) + 64 - 1) & -64) - -/* - * If you want very lazy method(vl=y) AS DEFAULT when - * handling large charset, define here. - */ -/* #define DEFAULT_VERY_LAZY 1 */ /* Always */ -#define DEFAULT_VERY_LAZY 2 /* Multi-byte only */ -/* #define DEFAULT_VERY_LAZY 256 */ /* Unicode only */ - -/* Does the X accept noSuchChar? */ -#define X_ACCEPTS_NO_SUCH_CHAR -/* Does the XAA accept NULL noSuchChar.bits?(dangerous) */ -/* #define XAA_ACCEPTS_NULL_BITS */ - -#ifdef X_ACCEPTS_NO_SUCH_CHAR -static CharInfoRec noSuchChar = { /* metrics */{0,0,0,0,0,0}, - /* bits */ NULL }; -#endif - -/* The propery names for all the XLFD properties. */ - -static char *xlfd_props[] = { - "FOUNDRY", - "FAMILY_NAME", - "WEIGHT_NAME", - "SLANT", - "SETWIDTH_NAME", - "ADD_STYLE_NAME", - "PIXEL_SIZE", - "POINT_SIZE", - "RESOLUTION_X", - "RESOLUTION_Y", - "SPACING", - "AVERAGE_WIDTH", - "CHARSET_REGISTRY", - "CHARSET_ENCODING", -}; - - -/* read 2-byte value from a SFNT table */ -static FT_UShort -sfnt_get_ushort( FT_Face face, - FT_ULong table_tag, - FT_ULong table_offset ) -{ - FT_Byte buff[2]; - FT_ULong len = sizeof(buff); - FT_UShort result = 0; - - if ( !FT_Load_Sfnt_Table( face, table_tag, table_offset, buff, &len ) ); - result = (FT_UShort)( (buff[0] << 8) | buff[1] ); - - return result; -} - -#define sfnt_get_short(f,t,o) ((FT_Short)sfnt_get_ushort((f),(t),(o))) - -#ifdef _MSC_VER -#define hypot _hypot -#endif - -static int ftypeInitP = 0; /* is the engine initialised? */ -FT_Library ftypeLibrary; - -static FTFacePtr faceTable[NUMFACEBUCKETS]; - -static unsigned -hash(char *string) -{ - int i; - unsigned u = 0; - for(i = 0; string[i] != '\0'; i++) - u = (u<<5) + (u >> (NUMFACEBUCKETS - 5)) + (unsigned char)string[i]; - return u; -} - -static int -ifloor(int x, int y) -{ - if(x >= 0) - return x/y; - else - return x/y - 1; -} - -static int -iceil(int x, int y) -{ - return ifloor(x + y - 1, y); -} - -static int -FreeTypeOpenFace(FTFacePtr *facep, char *FTFileName, char *realFileName, int faceNumber) -{ - FT_Error ftrc; - int bucket; - FTFacePtr face, otherFace; - - if (!ftypeInitP) { - ftrc = FT_Init_FreeType(&ftypeLibrary); - if (ftrc != 0) { - ErrorF("FreeType: error initializing ftypeEngine: %d\n", ftrc); - return AllocError; - } - ftypeInitP = 1; - } - - /* Try to find a matching face in the hashtable */ - bucket = hash(FTFileName)%NUMFACEBUCKETS; - otherFace = faceTable[bucket]; - while(otherFace) { - if( strcmp(otherFace->filename, FTFileName) == 0 ) break; - otherFace = otherFace->next; - } - if(otherFace) { - MUMBLE1("Returning cached face: %s\n", otherFace->filename); - *facep = otherFace; - return Successful; - } - - /* No cached match; need to make a new one */ - face = calloc(1, sizeof(FTFaceRec)); - if (face == NULL) { - return AllocError; - } - - face->filename = strdup(FTFileName); - if (face->filename == NULL) { - free(face); - return AllocError; - } - - ftrc = FT_New_Face(ftypeLibrary, realFileName, faceNumber, &face->face); - if(ftrc != 0) { - ErrorF("FreeType: couldn't open face %s: %d\n", FTFileName, ftrc); - free(face->filename); - free(face); - return BadFontName; - } - - face->bitmap = ((face->face->face_flags & FT_FACE_FLAG_SCALABLE) == 0); - if(!face->bitmap) { - TT_MaxProfile *maxp; - maxp = FT_Get_Sfnt_Table(face->face, ft_sfnt_maxp); - if(maxp && maxp->maxContours == 0) - face->bitmap = 1; - } - - face->num_hmetrics = (FT_UInt) sfnt_get_ushort( face->face, - TTAG_hhea, 34 ); - - /* Insert face in hashtable and return it */ - face->next = faceTable[bucket]; - faceTable[bucket] = face; - *facep = face; - return Successful; -} - -static void -FreeTypeFreeFace(FTFacePtr face) -{ - int bucket; - FTFacePtr otherFace; - - if(!face->instances) { - bucket = hash(face->filename) % NUMFACEBUCKETS; - if(faceTable[bucket] == face) - faceTable[bucket] = face->next; - else { - otherFace = faceTable[bucket]; - while(otherFace) { - if(otherFace->next == face) - break; - otherFace = otherFace->next; - } - if(otherFace && otherFace->next) - otherFace->next = otherFace->next->next; - else - ErrorF("FreeType: freeing unknown face\n"); - } - MUMBLE1("Closing face: %s\n", face->filename); - FT_Done_Face(face->face); - free(face->filename); - free(face); - } -} - -static int -TransEqual(FTNormalisedTransformationPtr t1, FTNormalisedTransformationPtr t2) -{ - if(t1->scale != t2->scale) - return 0; - else if(t1->xres != t2->xres || t1->yres != t2->yres) - return 0; - else if(t1->nonIdentity != t2->nonIdentity) - return 0; - else if(t1->nonIdentity && t2->nonIdentity) { - return - t1->matrix.xx == t2->matrix.xx && - t1->matrix.yx == t2->matrix.yx && - t1->matrix.yy == t2->matrix.yy && - t1->matrix.xy == t2->matrix.xy; - } else - return 1; -} - -static int -BitmapFormatEqual(FontBitmapFormatPtr f1, FontBitmapFormatPtr f2) -{ - return - f1->bit == f2->bit && - f1->byte == f2->byte && - f1->glyph == f2->glyph; -} - -static int -TTCapEqual(struct TTCapInfo *t1, struct TTCapInfo *t2) -{ - return - t1->autoItalic == t2->autoItalic && - t1->scaleWidth == t2->scaleWidth && - t1->scaleBBoxWidth == t2->scaleBBoxWidth && - t1->scaleBBoxHeight == t2->scaleBBoxHeight && - t1->doubleStrikeShift == t2->doubleStrikeShift && - t1->adjustBBoxWidthByPixel == t2->adjustBBoxWidthByPixel && - t1->adjustLeftSideBearingByPixel == t2->adjustLeftSideBearingByPixel && - t1->adjustRightSideBearingByPixel == t2->adjustRightSideBearingByPixel && - t1->flags == t2->flags && - t1->scaleBitmap == t2->scaleBitmap && - /* - If we use forceConstantSpacing, - we *MUST* allocate new instance. - */ - t1->forceConstantSpacingEnd < 0 && - t2->forceConstantSpacingEnd < 0; -} - -static int -FTInstanceMatch(FTInstancePtr instance, - char *FTFileName, FTNormalisedTransformationPtr trans, - int spacing, FontBitmapFormatPtr bmfmt, - struct TTCapInfo *tmp_ttcap, FT_Int32 load_flags) -{ - if(strcmp(instance->face->filename, FTFileName) != 0) { - return 0; - } else if(!TransEqual(&instance->transformation, trans)) { - return 0; - } else if( spacing != instance->spacing ) { - return 0; - } else if( load_flags != instance->load_flags ) { - return 0; - } else if(!BitmapFormatEqual(&instance->bmfmt, bmfmt)) { - return 0; - } else if(!TTCapEqual(&instance->ttcap, tmp_ttcap)) { - return 0; - } else { - return 1; - } -} - -static int -FreeTypeActivateInstance(FTInstancePtr instance) -{ - FT_Error ftrc; - if(instance->face->active_instance == instance) - return Successful; - - ftrc = FT_Activate_Size(instance->size); - if(ftrc != 0) { - instance->face->active_instance = NULL; - ErrorF("FreeType: couldn't activate instance: %d\n", ftrc); - return FTtoXReturnCode(ftrc); - } - FT_Set_Transform(instance->face->face, - instance->transformation.nonIdentity ? - &instance->transformation.matrix : 0, - 0); - - instance->face->active_instance = instance; - return Successful; -} - -static int -FTFindSize(FT_Face face, FTNormalisedTransformationPtr trans, - int *x_return, int *y_return) -{ - int tx, ty, x, y; - int i, j; - int d, dd; - - if(trans->nonIdentity) - return BadFontName; - - tx = (int)(trans->scale * trans->xres / 72.0 + 0.5); - ty = (int)(trans->scale * trans->yres / 72.0 + 0.5); - - d = 100; - j = -1; - for(i = 0; i < face->num_fixed_sizes; i++) { - x = face->available_sizes[i].width; - y = face->available_sizes[i].height; - if(ABS(x - tx) <= 1 && ABS(y - ty) <= 1) { - dd = ABS(x - tx) * ABS(x - tx) + ABS(y - ty) * ABS(y - ty); - if(dd < d) { - j = i; - d = dd; - } - } - } - if(j < 0) - return BadFontName; - - *x_return = face->available_sizes[j].width; - *y_return = face->available_sizes[j].height; - return Successful; -} - -static int -FreeTypeOpenInstance(FTInstancePtr *instance_return, FTFacePtr face, - char *FTFileName, FTNormalisedTransformationPtr trans, - int spacing, FontBitmapFormatPtr bmfmt, - struct TTCapInfo *tmp_ttcap, FT_Int32 load_flags) -{ - FT_Error ftrc; - int xrc; - FTInstancePtr instance, otherInstance; - - /* Search for a matching instance */ - for(otherInstance = face->instances; - otherInstance; - otherInstance = otherInstance->next) { - if(FTInstanceMatch(otherInstance, FTFileName, trans, spacing, bmfmt, - tmp_ttcap, load_flags)) break; - } - if(otherInstance) { - MUMBLE("Returning cached instance\n"); - otherInstance->refcount++; - *instance_return = otherInstance; - return Successful; - } - - /* None matching found */ - instance = malloc(sizeof(FTInstanceRec)); - if(instance == NULL) { - return AllocError; - } - - instance->refcount = 1; - instance->face = face; - - instance->load_flags = load_flags; - instance->spacing = spacing; /* Actual spacing */ - instance->pixel_size =0; - instance->pixel_width_unit_x =0; - instance->pixel_width_unit_y =0; - instance->charcellMetrics = NULL; - instance->averageWidth = 0; - instance->rawAverageWidth = 0; - instance->forceConstantMetrics = NULL; - - instance->transformation = *trans; - instance->bmfmt = *bmfmt; - instance->glyphs = NULL; - instance->available = NULL; - - if( 0 <= tmp_ttcap->forceConstantSpacingEnd ) - instance->nglyphs = 2 * instance->face->face->num_glyphs; - else - instance->nglyphs = instance->face->face->num_glyphs; - - /* Store the TTCap info. */ - memcpy((char*)&instance->ttcap, (char*)tmp_ttcap, - sizeof(struct TTCapInfo)); - - ftrc = FT_New_Size(instance->face->face, &instance->size); - if(ftrc != 0) { - ErrorF("FreeType: couldn't create size object: %d\n", ftrc); - free(instance); - return FTtoXReturnCode(ftrc); - } - FreeTypeActivateInstance(instance); - if(!face->bitmap) { - ftrc = FT_Set_Char_Size(instance->face->face, - (int)(trans->scale*(1<<6) + 0.5), - (int)(trans->scale*(1<<6) + 0.5), - trans->xres, trans->yres); - } else { - int xsize, ysize; - xrc = FTFindSize(face->face, trans, &xsize, &ysize); - if(xrc != Successful) { - free(instance); - return xrc; - } - ftrc = FT_Set_Pixel_Sizes(instance->face->face, xsize, ysize); - } - if(ftrc != 0) { - FT_Done_Size(instance->size); - free(instance); - return FTtoXReturnCode(ftrc); - } - - if( FT_IS_SFNT( face->face ) ) { -#if 1 - FT_F26Dot6 tt_char_width, tt_char_height, tt_dim_x, tt_dim_y; - FT_UInt nn; - - instance->strike_index=0xFFFFU; - - tt_char_width = (FT_F26Dot6)(trans->scale*(1<<6) + 0.5); - tt_char_height = (FT_F26Dot6)(trans->scale*(1<<6) + 0.5); - - tt_dim_x = FLOOR64( ( tt_char_width * trans->xres + 36 ) / 72 + 32 ); - tt_dim_y = FLOOR64( ( tt_char_height * trans->yres + 36 ) / 72 + 32 ); - - if ( tt_dim_x && !tt_dim_y ) - tt_dim_y = tt_dim_x; - else if ( !tt_dim_x && tt_dim_y ) - tt_dim_x = tt_dim_y; - - for ( nn = 0; nn < face->face->num_fixed_sizes; nn++ ) - { - FT_Bitmap_Size* sz = &face->face->available_sizes[nn]; - - if ( tt_dim_x == FLOOR64(sz->x_ppem + 32) && tt_dim_y == FLOOR64(sz->y_ppem + 32) ) - { - instance->strike_index = nn; - break; - } - } -#else - /* See Set_Char_Sizes() in ttdriver.c */ - FT_Error err; - TT_Face tt_face; - FT_Long tt_dim_x, tt_dim_y; - FT_UShort tt_x_ppem, tt_y_ppem; - FT_F26Dot6 tt_char_width, tt_char_height; - SFNT_Service sfnt; - tt_face=(TT_Face)face->face; - tt_char_width = (int)(trans->scale*(1<<6) + 0.5); - tt_char_height = (int)(trans->scale*(1<<6) + 0.5); - if ( ( tt_face->header.Flags & 8 ) != 0 ) { - tt_dim_x = ( ( tt_char_width * trans->xres + (36+32*72) ) / 72 ) & -64; - tt_dim_y = ( ( tt_char_height * trans->yres + (36+32*72) ) / 72 ) & -64; - } - else{ - tt_dim_x = ( ( tt_char_width * trans->xres + 36 ) / 72 ); - tt_dim_y = ( ( tt_char_height * trans->yres + 36 ) / 72 ); - } - tt_x_ppem = (FT_UShort)( tt_dim_x >> 6 ); - tt_y_ppem = (FT_UShort)( tt_dim_y >> 6 ); - /* See Reset_SBit_Size() in ttobjs.c */ - sfnt = (SFNT_Service)tt_face->sfnt; - err = sfnt->set_sbit_strike(tt_face,tt_x_ppem,tt_y_ppem,&instance->strike_index); - if ( err ) instance->strike_index=0xFFFFU; -#endif - } - - /* maintain a linked list of instances */ - instance->next = instance->face->instances; - instance->face->instances = instance; - - *instance_return = instance; - return Successful; -} - -static void -FreeTypeFreeInstance(FTInstancePtr instance) -{ - FTInstancePtr otherInstance; - - if( instance == NULL ) return; - - if(instance->face->active_instance == instance) - instance->face->active_instance = NULL; - instance->refcount--; - if(instance->refcount <= 0) { - int i,j; - - if(instance->face->instances == instance) - instance->face->instances = instance->next; - else { - for(otherInstance = instance->face->instances; - otherInstance; - otherInstance = otherInstance->next) - if(otherInstance->next == instance) { - otherInstance->next = instance->next; - break; - } - } - - FT_Done_Size(instance->size); - FreeTypeFreeFace(instance->face); - - if(instance->charcellMetrics) { - free(instance->charcellMetrics); - } - if(instance->forceConstantMetrics) { - free(instance->forceConstantMetrics); - } - if(instance->glyphs) { - for(i = 0; i < iceil(instance->nglyphs, FONTSEGMENTSIZE); i++) { - if(instance->glyphs[i]) { - for(j = 0; j < FONTSEGMENTSIZE; j++) { - if(instance->available[i][j] == - FT_AVAILABLE_RASTERISED) - free(instance->glyphs[i][j].bits); - } - free(instance->glyphs[i]); - } - } - free(instance->glyphs); - } - if(instance->available) { - for(i = 0; i < iceil(instance->nglyphs, FONTSEGMENTSIZE); i++) { - if(instance->available[i]) - free(instance->available[i]); - } - free(instance->available); - } - free(instance); - } -} - -static int -FreeTypeInstanceFindGlyph(unsigned idx_in, int flags, FTInstancePtr instance, - CharInfoPtr **glyphs, int ***available, - int *found, int *segmentP, int *offsetP) -{ - int segment, offset; - unsigned idx = idx_in; - - if( 0 <= instance->ttcap.forceConstantSpacingEnd ){ - if( (flags & FT_FORCE_CONSTANT_SPACING) ) - idx += instance->nglyphs / 2 ; - } - - if(idx > instance->nglyphs) { - *found = 0; - return Successful; - } - - if(*available == NULL) { - *available = calloc(iceil(instance->nglyphs, FONTSEGMENTSIZE), - sizeof(int *)); - if(*available == NULL) - return AllocError; - } - - segment = ifloor(idx, FONTSEGMENTSIZE); - offset = idx - segment * FONTSEGMENTSIZE; - - if((*available)[segment] == NULL) { - (*available)[segment] = calloc(FONTSEGMENTSIZE, sizeof(int *)); - if((*available)[segment] == NULL) - return AllocError; - } - - if(*glyphs == NULL) { - *glyphs = calloc(iceil(instance->nglyphs, FONTSEGMENTSIZE), - sizeof(CharInfoPtr)); - if(*glyphs == NULL) - return AllocError; - } - - if((*glyphs)[segment] == NULL) { - (*glyphs)[segment] = malloc(sizeof(CharInfoRec) * FONTSEGMENTSIZE); - if((*glyphs)[segment] == NULL) - return AllocError; - } - - *found = 1; - *segmentP = segment; - *offsetP = offset; - return Successful; -} - -static int -FreeTypeInstanceGetGlyph(unsigned idx, int flags, CharInfoPtr *g, FTInstancePtr instance) -{ - int found, segment, offset; - int xrc; - int ***available; - CharInfoPtr **glyphs; - - available = &instance->available; - glyphs = &instance->glyphs; - - xrc = FreeTypeInstanceFindGlyph(idx, flags, instance, glyphs, available, - &found, &segment, &offset); - if(xrc != Successful) - return xrc; - - if(!found || (*available)[segment][offset] == FT_AVAILABLE_NO) { - *g = NULL; - return Successful; - } - - if((*available)[segment][offset] == FT_AVAILABLE_RASTERISED) { - *g = &(*glyphs)[segment][offset]; - return Successful; - } - - flags |= FT_GET_GLYPH_BOTH; - - xrc = FreeTypeRasteriseGlyph(idx, flags, - &(*glyphs)[segment][offset], instance, - (*available)[segment][offset] >= FT_AVAILABLE_METRICS); - if(xrc != Successful && (*available)[segment][offset] >= FT_AVAILABLE_METRICS) { - ErrorF("Warning: FreeTypeRasteriseGlyph() returns an error,\n"); - ErrorF("\tso the backend tries to set a white space.\n"); - xrc = FreeTypeRasteriseGlyph(idx, flags | FT_GET_DUMMY, - &(*glyphs)[segment][offset], instance, - (*available)[segment][offset] >= FT_AVAILABLE_METRICS); - } - if(xrc == Successful) { - (*available)[segment][offset] = FT_AVAILABLE_RASTERISED; - /* return the glyph */ - *g = &(*glyphs)[segment][offset]; - } - return xrc; -} - -static int -FreeTypeInstanceGetGlyphMetrics(unsigned idx, int flags, - xCharInfo **metrics, FTInstancePtr instance ) -{ - int xrc; - int found, segment, offset; - - /* Char cell */ - if(instance->spacing == FT_CHARCELL) { - *metrics = instance->charcellMetrics; - return Successful; - } - /* Force constant metrics */ - if( flags & FT_FORCE_CONSTANT_SPACING) { - *metrics = instance->forceConstantMetrics; - return Successful; - } - - /* Not char cell */ - - xrc = FreeTypeInstanceFindGlyph(idx, flags, instance, - &instance->glyphs, &instance->available, - &found, &segment, &offset); - if(xrc != Successful) - return xrc; - if(!found) { - *metrics = NULL; - return Successful; - } - if( instance->available[segment][offset] == FT_AVAILABLE_NO ) { - *metrics = NULL; - return Successful; - } - - if( instance->available[segment][offset] >= FT_AVAILABLE_METRICS ) { - *metrics = &instance->glyphs[segment][offset].metrics; - return Successful; - } - - flags |= FT_GET_GLYPH_METRICS_ONLY; - - xrc = FreeTypeRasteriseGlyph(idx, flags, - &instance->glyphs[segment][offset], - instance, 0); - if(xrc == Successful) { - instance->available[segment][offset] = FT_AVAILABLE_METRICS; - *metrics = &instance->glyphs[segment][offset].metrics; - } - return xrc; -} - -/* - * Pseudo enbolding similar as Microsoft Windows. - * It is useful but poor. - */ -static void -ft_make_up_bold_bitmap( char *raster, int bpr, int ht, int ds_mode) -{ - int x, y; - unsigned char *p = (unsigned char *)raster; - if ( ds_mode & TTCAP_DOUBLE_STRIKE_MKBOLD_EDGE_LEFT ) { - for (y=0; y<ht; y++) { - unsigned char rev_pat=0; - unsigned char lsb = 0; - for (x=0; x<bpr; x++) { - unsigned char tmp = *p<<7; - if ( (rev_pat & 0x01) && (*p & 0x80) ) p[-1] &= 0xfe; - rev_pat = ~(*p); - *p |= (*p>>1) | lsb; - *p &= ~(rev_pat & (*p << 1)); - lsb = tmp; - p++; - } - } - } - else { - for (y=0; y<ht; y++) { - unsigned char lsb = 0; - for (x=0; x<bpr; x++) { - unsigned char tmp = *p<<7; - *p |= (*p>>1) | lsb; - lsb = tmp; - p++; - } - } - } -} - -static void -ft_make_up_italic_bitmap( char *raster, int bpr, int ht, int shift, - int h_total, int h_offset, double a_italic) -{ - int x, y; - unsigned char *p = (unsigned char *)raster; - if ( a_italic < 0 ) shift = -shift; - for (y=0; y<ht; y++) { - unsigned char *tmp_p = p + y*bpr; - int tmp_shift = shift * (h_total -1 -(y+h_offset)) / h_total; - int tmp_byte_shift; - if ( 0 <= tmp_shift ) { - tmp_byte_shift = tmp_shift/8; - tmp_shift %= 8; - if ( tmp_shift ) { - for (x=bpr-1;0<=x;x--) { - if ( x != bpr-1 ) - tmp_p[x+1] |= tmp_p[x]<<(8-tmp_shift); - tmp_p[x]>>=tmp_shift; - } - } - if ( tmp_byte_shift ) { - for (x=bpr-1;0<x;x--) { - tmp_p[x] = tmp_p[x-1]; - } - tmp_p[x]=0; - } - } - else { - tmp_shift = -tmp_shift; - tmp_byte_shift = tmp_shift/8; - tmp_shift %= 8; - if ( tmp_shift ) { - for (x=0;x<bpr;x++) { - if ( x != 0 ) - tmp_p[x-1] |= tmp_p[x]>>(8-tmp_shift); - tmp_p[x]<<=tmp_shift; - } - } - if ( tmp_byte_shift ) { - for (x=0;x<bpr-1;x++) { - tmp_p[x] = tmp_p[x+1]; - } - tmp_p[x]=0; - } - } - } -} - -/* - * The very lazy method, - * parse the htmx field in TrueType font. - */ - -static void -tt_get_metrics( FT_Face face, - FT_UInt idx, - FT_UInt num_hmetrics, - FT_Short* bearing, - FT_UShort* advance ) -{ - /* read the metrics directly from the horizontal header, we - * parse the SFNT table directly through the standard FreeType API. - * this works with any version of the library and doesn't need to - * peek at its internals. Maybe a bit less - */ - FT_UInt count = num_hmetrics; - FT_ULong length = 0; - FT_ULong offset = 0; - FT_Error error; - - error = FT_Load_Sfnt_Table( face, TTAG_hmtx, 0, NULL, &length ); - - if ( count == 0 || error ) - { - *advance = 0; - *bearing = 0; - } - else if ( idx < count ) - { - offset = idx * 4L; - if ( offset + 4 > length ) - { - *advance = 0; - *bearing = 0; - } - else - { - *advance = sfnt_get_ushort( face, TTAG_hmtx, offset ); - *bearing = sfnt_get_short ( face, TTAG_hmtx, offset+2 ); - } - } - else - { - offset = 4L * (count - 1); - if ( offset + 4 > length ) - { - *advance = 0; - *bearing = 0; - } - else - { - *advance = sfnt_get_ushort ( face, TTAG_hmtx, offset ); - offset += 4 + 2 * ( idx - count ); - if ( offset + 2 > length) - *bearing = 0; - else - *bearing = sfnt_get_short ( face, TTAG_hmtx, offset ); - } - } -} - -static int -ft_get_very_lazy_bbox( FT_UInt index, - FT_Face face, - FT_Size size, - FT_UInt num_hmetrics, - double slant, - FT_Matrix *matrix, - FT_BBox *bbox, - FT_Long *horiAdvance, - FT_Long *vertAdvance) -{ - if ( FT_IS_SFNT( face ) ) { - FT_Size_Metrics *smetrics = &size->metrics; - FT_Short leftBearing = 0; - FT_UShort advance = 0; - FT_Vector p0, p1, p2, p3; - - /* horizontal */ - tt_get_metrics( face, index, num_hmetrics, - &leftBearing, &advance ); - -#if 0 - fprintf(stderr,"x_scale=%f y_scale=%f\n", - (double)smetrics->x_scale,(double)smetrics->y_scale); -#endif - bbox->xMax = *horiAdvance = - FT_MulFix( advance, smetrics->x_scale ); - bbox->xMin = - FT_MulFix( leftBearing, smetrics->x_scale ); - /* vertical */ - bbox->yMin = FT_MulFix( face->bbox.yMin, - smetrics->y_scale ); - bbox->yMax = FT_MulFix( face->bbox.yMax, - smetrics->y_scale ); - /* slant */ - if( 0 < slant ) { - bbox->xMax += slant * bbox->yMax; - bbox->xMin += slant * bbox->yMin; - } - else if( slant < 0 ) { - bbox->xMax += slant * bbox->yMin; - bbox->xMin += slant * bbox->yMax; - } - - *vertAdvance = -1; /* We don't support */ - - p0.x = p2.x = bbox->xMin; - p1.x = p3.x = bbox->xMax; - p0.y = p1.y = bbox->yMin; - p2.y = p3.y = bbox->yMax; - - FT_Vector_Transform(&p0, matrix); - FT_Vector_Transform(&p1, matrix); - FT_Vector_Transform(&p2, matrix); - FT_Vector_Transform(&p3, matrix); - -#if 0 - fprintf(stderr, - "->(%.1f %.1f) (%.1f %.1f)" - " (%.1f %.1f) (%.1f %.1f)\n", - p0.x / 64.0, p0.y / 64.0, - p1.x / 64.0, p1.y / 64.0, - p2.x / 64.0, p2.y / 64.0, - p3.x / 64.0, p3.y / 64.0); -#endif - bbox->xMin = MIN(p0.x, MIN(p1.x, MIN(p2.x, p3.x))); - bbox->xMax = MAX(p0.x, MAX(p1.x, MAX(p2.x, p3.x))); - bbox->yMin = MIN(p0.y, MIN(p1.y, MIN(p2.y, p3.y))); - bbox->yMax = MAX(p0.y, MAX(p1.y, MAX(p2.y, p3.y))); - return 0; /* Successful */ - } - return -1; -} - -static FT_Error -FT_Do_SBit_Metrics( FT_Face ft_face, FT_Size ft_size, FT_ULong strike_index, - FT_UShort glyph_index, FT_Glyph_Metrics *metrics_return, - int *sbitchk_incomplete_but_exist ) -{ -#if 1 - if ( strike_index != 0xFFFFU && ft_face->available_sizes != NULL ) - { - FT_Error error; - FT_Bitmap_Size* sz = &ft_face->available_sizes[strike_index]; - - error = FT_Set_Pixel_Sizes( ft_face, sz->x_ppem/64, sz->y_ppem/64 ); - if ( !error ) - { - error = FT_Load_Glyph( ft_face, glyph_index, FT_LOAD_SBITS_ONLY ); - if ( !error ) - { - if ( metrics_return != NULL ) - *metrics_return = ft_face->glyph->metrics; - - return 0; - } - } - } - return -1; -#elif (FREETYPE_VERSION >= 2001008) - SFNT_Service sfnt; - TT_Face face; - FT_Error error; - FT_Stream stream; - TT_SBit_Strike strike; - TT_SBit_Range range; - TT_SBit_MetricsRec elem_metrics; - FT_ULong ebdt_pos; - FT_ULong glyph_offset; - ; - - if ( ! FT_IS_SFNT( ft_face ) ) - { - error=-1; - goto Exit; - } - - face = (TT_Face)ft_face; - sfnt = (SFNT_Service)face->sfnt; - - if (strike_index != 0xFFFFU && sfnt && sfnt->find_sbit_image && - sfnt->load_sbits) { - /* Check whether there is a glyph sbit for the current index */ - error = sfnt->find_sbit_image( face, glyph_index, strike_index, - &range, &strike, &glyph_offset ); - } - else error=-1; - if ( error ) goto Exit; - - if ( metrics_return == NULL ) goto Exit; - - stream = face->root.stream; - - /* now, find the location of the `EBDT' table in */ - /* the font file */ - error = face->goto_table( face, TTAG_EBDT, stream, 0 ); - if ( error ) - error = face->goto_table( face, TTAG_bdat, stream, 0 ); - if (error) - goto Exit; - - ebdt_pos = FT_STREAM_POS(); - - /* place stream at beginning of glyph data and read metrics */ - if ( FT_STREAM_SEEK( ebdt_pos + glyph_offset ) ) - goto Exit; - - error = sfnt->load_sbit_metrics( stream, range, &elem_metrics ); - if ( error ) - goto Exit; - - metrics_return->width = (FT_Pos)elem_metrics.width << 6; - metrics_return->height = (FT_Pos)elem_metrics.height << 6; - - metrics_return->horiBearingX = (FT_Pos)elem_metrics.horiBearingX << 6; - metrics_return->horiBearingY = (FT_Pos)elem_metrics.horiBearingY << 6; - metrics_return->horiAdvance = (FT_Pos)elem_metrics.horiAdvance << 6; - - metrics_return->vertBearingX = (FT_Pos)elem_metrics.vertBearingX << 6; - metrics_return->vertBearingY = (FT_Pos)elem_metrics.vertBearingY << 6; - metrics_return->vertAdvance = (FT_Pos)elem_metrics.vertAdvance << 6; - - Exit: - return error; -#else /* if (FREETYPE_VERSION < 2001008) */ - TT_Face face; - SFNT_Service sfnt; - if ( ! FT_IS_SFNT( ft_face ) ) return -1; - face = (TT_Face)ft_face; - sfnt = (SFNT_Service)face->sfnt; - if ( strike_index != 0xFFFFU && sfnt->load_sbits ) { - if ( sbitchk_incomplete_but_exist ) *sbitchk_incomplete_but_exist=1; - } - return -1; -#endif -} - -int -FreeTypeRasteriseGlyph(unsigned idx, int flags, CharInfoPtr tgp, - FTInstancePtr instance, int hasMetrics) -{ - FTFacePtr face; - FT_BBox bbox; - FT_Long outline_hori_advance, outline_vert_advance; - FT_Glyph_Metrics sbit_metrics; - FT_Glyph_Metrics *bitmap_metrics=NULL, *metrics = NULL; - char *raster; - int wd, ht, bpr; /* width, height, bytes per row */ - int wd_actual, ht_actual; - int ftrc, is_outline, correct, b_shift=0; - int dx, dy; - int leftSideBearing, rightSideBearing, characterWidth, rawCharacterWidth, - ascent, descent; - int sbitchk_incomplete_but_exist; - double bbox_center_raw; - - face = instance->face; - - FreeTypeActivateInstance(instance); - - if(!tgp) return AllocError; - - /* - * PREPARE METRICS - */ - - if(!hasMetrics) { - if( instance->spacing == FT_CHARCELL || flags & FT_GET_DUMMY ){ - memcpy((char*)&tgp->metrics, - (char*)instance->charcellMetrics, - sizeof(xCharInfo)); - } - else if( flags & FT_FORCE_CONSTANT_SPACING ) { - memcpy((char*)&tgp->metrics, - (char*)instance->forceConstantMetrics, - sizeof(xCharInfo)); - } - /* mono or prop. */ - else{ - int new_width; - double ratio; - - sbitchk_incomplete_but_exist=0; - if( ! (instance->load_flags & FT_LOAD_NO_BITMAP) ) { - if( FT_Do_SBit_Metrics(face->face,instance->size,instance->strike_index, - idx,&sbit_metrics,&sbitchk_incomplete_but_exist)==0 ) { - bitmap_metrics = &sbit_metrics; - } - } - if( bitmap_metrics == NULL ) { - if ( sbitchk_incomplete_but_exist==0 && (instance->ttcap.flags & TTCAP_IS_VERY_LAZY) ) { - if( ft_get_very_lazy_bbox( idx, face->face, instance->size, - face->num_hmetrics, - instance->ttcap.vl_slant, - &instance->transformation.matrix, - &bbox, &outline_hori_advance, - &outline_vert_advance ) == 0 ) { - goto bbox_ok; /* skip exact calculation */ - } - } - ftrc = FT_Load_Glyph(instance->face->face, idx, - instance->load_flags); - if(ftrc != 0) return FTtoXReturnCode(ftrc); - metrics = &face->face->glyph->metrics; - if( face->face->glyph->format == FT_GLYPH_FORMAT_BITMAP ) { - bitmap_metrics = metrics; - } - } - - if( bitmap_metrics ) { - FT_Pos factor; - - leftSideBearing = bitmap_metrics->horiBearingX / 64; - rightSideBearing = (bitmap_metrics->width + bitmap_metrics->horiBearingX) / 64; - bbox_center_raw = (2.0 * bitmap_metrics->horiBearingX + bitmap_metrics->width)/2.0/64.0; - characterWidth = (int)floor(bitmap_metrics->horiAdvance - * instance->ttcap.scaleBBoxWidth / 64.0 + .5); - ascent = bitmap_metrics->horiBearingY / 64; - descent = (bitmap_metrics->height - bitmap_metrics->horiBearingY) / 64 ; - /* */ - new_width = characterWidth; - if( instance->ttcap.flags & TTCAP_DOUBLE_STRIKE_CORRECT_B_BOX_WIDTH ) - new_width += instance->ttcap.doubleStrikeShift; - new_width += instance->ttcap.adjustBBoxWidthByPixel; - ratio = (double)new_width/characterWidth; - characterWidth = new_width; - /* adjustment by pixel unit */ - if( instance->ttcap.flags & TTCAP_DOUBLE_STRIKE ) - rightSideBearing += instance->ttcap.doubleStrikeShift; - rightSideBearing += instance->ttcap.adjustRightSideBearingByPixel; - leftSideBearing += instance->ttcap.adjustLeftSideBearingByPixel; - rightSideBearing += instance->ttcap.rsbShiftOfBitmapAutoItalic; - leftSideBearing += instance->ttcap.lsbShiftOfBitmapAutoItalic; - /* */ - factor = bitmap_metrics->horiAdvance; - rawCharacterWidth = (unsigned short)(short)(floor(1000 * factor - * instance->ttcap.scaleBBoxWidth * ratio / 64. - / instance->pixel_size)); - } - else { - /* Outline */ -#ifdef USE_GET_CBOX - /* Very fast?? */ - FT_Outline_Get_CBox(&face->face->glyph->outline, &bbox); - ftrc=0; /* FT_Outline_Get_CBox returns nothing. */ -#else - /* Calculate exact metrics */ - ftrc=FT_Outline_Get_BBox(&face->face->glyph->outline, &bbox); -#endif - if( ftrc != 0 ) return FTtoXReturnCode(ftrc); - outline_hori_advance = metrics->horiAdvance; - outline_vert_advance = metrics->vertAdvance; - bbox_ok: - descent = CEIL64(-bbox.yMin - 32) / 64; - leftSideBearing = FLOOR64(bbox.xMin + 32) / 64; - ascent = FLOOR64(bbox.yMax + 32) / 64; - rightSideBearing = FLOOR64(bbox.xMax + 32) / 64; - bbox_center_raw = (double)(bbox.xMax + bbox.xMin)/2.0/64.; - if ( instance->pixel_width_unit_x != 0 ) - characterWidth = - (int)floor( outline_hori_advance - * instance->ttcap.scaleBBoxWidth - * instance->pixel_width_unit_x / 64. + .5); - else { - characterWidth = - (int)floor( outline_vert_advance - * instance->ttcap.scaleBBoxHeight - * instance->pixel_width_unit_y / 64. + .5); - if(characterWidth <= 0) - characterWidth = instance->charcellMetrics->characterWidth; - } - /* */ - new_width = characterWidth; - if( instance->ttcap.flags & TTCAP_DOUBLE_STRIKE_CORRECT_B_BOX_WIDTH ) - new_width += instance->ttcap.doubleStrikeShift; - new_width += instance->ttcap.adjustBBoxWidthByPixel; - ratio = (double)new_width/characterWidth; - characterWidth = new_width; - if ( instance->pixel_width_unit_x != 0 ) - rawCharacterWidth = - (unsigned short)(short)(floor(1000 * outline_hori_advance - * instance->ttcap.scaleBBoxWidth * ratio - * instance->pixel_width_unit_x / 64.)); - else { - rawCharacterWidth = - (unsigned short)(short)(floor(1000 * outline_vert_advance - * instance->ttcap.scaleBBoxHeight * ratio - * instance->pixel_width_unit_y / 64.)); - if(rawCharacterWidth <= 0) - rawCharacterWidth = instance->charcellMetrics->attributes; - } - /* adjustment by pixel unit */ - if( instance->ttcap.flags & TTCAP_DOUBLE_STRIKE ) - rightSideBearing += instance->ttcap.doubleStrikeShift; - rightSideBearing += instance->ttcap.adjustRightSideBearingByPixel; - leftSideBearing += instance->ttcap.adjustLeftSideBearingByPixel; - } - - /* Set the glyph metrics. */ - tgp->metrics.attributes = (unsigned short)((short)rawCharacterWidth); - tgp->metrics.leftSideBearing = leftSideBearing; - tgp->metrics.rightSideBearing = rightSideBearing; - tgp->metrics.characterWidth = characterWidth; - tgp->metrics.ascent = ascent; - tgp->metrics.descent = descent; - /* Update the width to match the width of the font */ - if( instance->spacing != FT_PROPORTIONAL ) - tgp->metrics.characterWidth = instance->charcellMetrics->characterWidth; - if(instance->ttcap.flags & TTCAP_MONO_CENTER){ - b_shift = (int)floor((instance->advance/2.0-bbox_center_raw) + .5); - tgp->metrics.leftSideBearing += b_shift; - tgp->metrics.rightSideBearing += b_shift; - } - } - } - - if( flags & FT_GET_GLYPH_METRICS_ONLY ) return Successful; - - /* - * CHECK THE NECESSITY OF BITMAP POSITION'S CORRECTION - */ - - correct=0; - if( instance->spacing == FT_CHARCELL ) correct=1; - else if( flags & FT_FORCE_CONSTANT_SPACING ) correct=1; - else{ - int sbit_available=0; - sbitchk_incomplete_but_exist=0; - if( !(instance->load_flags & FT_LOAD_NO_BITMAP) ) { - if( FT_Do_SBit_Metrics(face->face,instance->size, - instance->strike_index,idx,NULL, - &sbitchk_incomplete_but_exist)==0 ) { - sbit_available=1; - } - } - if( sbit_available == 0 ) { - if ( sbitchk_incomplete_but_exist==0 && (instance->ttcap.flags & TTCAP_IS_VERY_LAZY) ) { - if( FT_IS_SFNT(face->face) ) correct=1; - } - } - } - - /* - * RENDER AND ALLOCATE BUFFER - */ - - if( flags & FT_GET_DUMMY ) is_outline = -1; - else { - if( !metrics ) { - ftrc = FT_Load_Glyph(instance->face->face, idx, - instance->load_flags); - metrics = &face->face->glyph->metrics; - - if(ftrc != 0) return FTtoXReturnCode(ftrc); - } - - if( face->face->glyph->format != FT_GLYPH_FORMAT_BITMAP ) { -#ifdef USE_GET_CBOX - FT_Outline_Get_CBox(&face->face->glyph->outline, &bbox); - ftrc = 0; -#else - ftrc = FT_Outline_Get_BBox(&face->face->glyph->outline, &bbox); -#endif - if( ftrc != 0 ) return FTtoXReturnCode(ftrc); - bbox.yMin = FLOOR64( bbox.yMin ); - bbox.yMax = CEIL64 ( bbox.yMax ); - ht_actual = ( bbox.yMax - bbox.yMin ) >> 6; - /* FreeType think a glyph with 0 height control box is invalid. - * So just let X to create a empty bitmap instead. */ - if ( ht_actual == 0 ) - is_outline = -1; - else - { - ftrc = FT_Render_Glyph(face->face->glyph,FT_RENDER_MODE_MONO); - if( ftrc != 0 ) return FTtoXReturnCode(ftrc); - is_outline = 1; - } - } - else{ - is_outline=0; - } - } - - /* Spacial case */ - if( (instance->ttcap.flags & TTCAP_MONO_CENTER) && hasMetrics ) { - if( is_outline == 1 ){ - if( correct ){ - if( ft_get_very_lazy_bbox( idx, face->face, instance->size, - face->num_hmetrics, - instance->ttcap.vl_slant, - &instance->transformation.matrix, - &bbox, &outline_hori_advance, - &outline_vert_advance ) != 0 ){ - is_outline = -1; /* <- error */ - } - } - else { -#ifdef USE_GET_CBOX - FT_Outline_Get_CBox(&face->face->glyph->outline, &bbox); - ftrc=0; -#else - ftrc=FT_Outline_Get_BBox(&face->face->glyph->outline, &bbox); -#endif - if( ftrc != 0 ) return FTtoXReturnCode(ftrc); - } - bbox_center_raw = (double)(bbox.xMax + bbox.xMin)/2.0/64.; - } - else if( is_outline == 0 ) - bbox_center_raw = (2.0 * metrics->horiBearingX + metrics->width)/2.0/64.0; - else - bbox_center_raw = 0; - b_shift = (int)floor((instance->advance/2.0-bbox_center_raw) + .5); - } - - wd_actual = tgp->metrics.rightSideBearing - tgp->metrics.leftSideBearing; - ht_actual = tgp->metrics.ascent + tgp->metrics.descent; - - /* The X convention is to consider a character with an empty - * bounding box as undefined. This convention is broken. */ - - if(wd_actual <= 0) wd = 1; - else wd=wd_actual; - if(ht_actual <= 0) ht = 1; - else ht=ht_actual; - - bpr = (((wd + (instance->bmfmt.glyph<<3) - 1) >> 3) & - -instance->bmfmt.glyph); - raster = calloc(1, ht * bpr); - if(raster == NULL) - return AllocError; - - tgp->bits = raster; - - /* If FT_GET_DUMMY is set, we return white space. */ - if ( is_outline == -1 ) return Successful; - - if ( wd_actual <= 0 || ht_actual <= 0 ) return Successful; - - /* - * CALCULATE OFFSET, dx AND dy. - */ - - dx = face->face->glyph->bitmap_left - tgp->metrics.leftSideBearing; - dy = tgp->metrics.ascent - face->face->glyph->bitmap_top; - - if(instance->ttcap.flags & TTCAP_MONO_CENTER) - dx += b_shift; - - /* To prevent chipped bitmap, we correct dx and dy if needed. */ - if( correct && is_outline==1 ){ - int lsb, rsb, asc, des; - int chip_left,chip_right,chip_top,chip_bot; -#ifdef USE_GET_CBOX - FT_Outline_Get_CBox(&face->face->glyph->outline, &bbox); - ftrc=0; -#else - ftrc=FT_Outline_Get_BBox(&face->face->glyph->outline, &bbox); -#endif - if( ftrc != 0 ) return FTtoXReturnCode(ftrc); - des = CEIL64(-bbox.yMin - 32) / 64; - lsb = FLOOR64(bbox.xMin + 32) / 64; - asc = FLOOR64(bbox.yMax + 32) / 64; - rsb = FLOOR64(bbox.xMax + 32) / 64; - rightSideBearing = tgp->metrics.rightSideBearing; - leftSideBearing = tgp->metrics.leftSideBearing; - if( instance->ttcap.flags & TTCAP_DOUBLE_STRIKE ) - rightSideBearing -= instance->ttcap.doubleStrikeShift; - /* special case */ - if(instance->ttcap.flags & TTCAP_MONO_CENTER){ - leftSideBearing -= b_shift; - rightSideBearing -= b_shift; - } - chip_left = lsb - leftSideBearing; - chip_right = rightSideBearing - rsb; - if( flags & FT_FORCE_CONSTANT_SPACING ){ - if( instance->ttcap.force_c_adjust_lsb_by_pixel != 0 || - instance->ttcap.force_c_adjust_rsb_by_pixel != 0 ){ - chip_left=0; - chip_right=0; - } - } - else{ - if( instance->ttcap.adjustRightSideBearingByPixel != 0 || - instance->ttcap.adjustLeftSideBearingByPixel != 0 ){ - chip_left=0; - chip_right=0; - } - } - chip_top = tgp->metrics.ascent - asc; - chip_bot = tgp->metrics.descent - des; - if( chip_left < 0 && 0 < chip_right ) dx++; - else if( chip_right < 0 && 0 < chip_left ) dx--; - if( chip_top < 0 && 0 < chip_bot ) dy++; - else if( chip_bot < 0 && 0 < chip_top ) dy--; - } - - /* - * COPY RASTER - */ - - { - FT_Bitmap *bitmap; - int i, j; - unsigned char *current_raster; - unsigned char *current_buffer; - int mod_dx0,mod_dx1; - int div_dx; - bitmap = &face->face->glyph->bitmap; - if( 0 <= dx ){ - div_dx = dx / 8; - mod_dx0 = dx % 8; - mod_dx1 = 8-mod_dx0; - } - else{ - div_dx = dx / 8 -1; - mod_dx1 = -dx % 8; - mod_dx0 = 8-mod_dx1; - } - for( i = MAX(0, dy) ; i<ht ; i++ ){ - int prev_jj,jj; - if( bitmap->rows <= i-dy ) break; - current_buffer=(unsigned char *)(bitmap->buffer+bitmap->pitch*(i-dy)); - current_raster=(unsigned char *)(raster+i*bpr); - j = MAX(0,div_dx); - jj = j-div_dx; - prev_jj = jj-1; - if( j<bpr ){ - if( 0 <= prev_jj && prev_jj < bitmap->pitch ) - current_raster[j]|=current_buffer[prev_jj]<<mod_dx1; - if( 0 <= jj && jj < bitmap->pitch ){ - current_raster[j]|=current_buffer[jj]>>mod_dx0; - j++; prev_jj++; jj++; - for( ; j<bpr ; j++,prev_jj++,jj++ ){ - current_raster[j]|=current_buffer[prev_jj]<<mod_dx1; - if( bitmap->pitch <= jj ) break; - current_raster[j]|=current_buffer[jj]>>mod_dx0; - } - } - } - } - } - - /* by TTCap */ - if ( instance->ttcap.flags & TTCAP_DOUBLE_STRIKE ) { - int i; - for( i=0 ; i < instance->ttcap.doubleStrikeShift ; i++ ) - ft_make_up_bold_bitmap( raster, bpr, ht, instance->ttcap.flags); - } - if ( is_outline == 0 && - ( instance->ttcap.lsbShiftOfBitmapAutoItalic != 0 || - instance->ttcap.rsbShiftOfBitmapAutoItalic != 0 ) ) { - ft_make_up_italic_bitmap( raster, bpr, ht, - - instance->ttcap.lsbShiftOfBitmapAutoItalic - + instance->ttcap.rsbShiftOfBitmapAutoItalic, - instance->charcellMetrics->ascent - + instance->charcellMetrics->descent, - instance->charcellMetrics->ascent - - tgp->metrics.ascent, - instance->ttcap.autoItalic); - } - - if(instance->bmfmt.bit == LSBFirst) { - BitOrderInvert((unsigned char*)(tgp->bits), ht*bpr); - } - - if(instance->bmfmt.byte != instance->bmfmt.bit) { - switch(instance->bmfmt.scan) { - case 1: - break; - case 2: - TwoByteSwap((unsigned char*)(tgp->bits), ht*bpr); - break; - case 4: - FourByteSwap((unsigned char*)(tgp->bits), ht*bpr); - break; - default: - ; - } - } - - return Successful; -} - -static void -FreeTypeFreeFont(FTFontPtr font) -{ - FreeTypeFreeInstance(font->instance); - if(font->ranges) - free(font->ranges); - if(font->dummy_char.bits) - free(font->dummy_char.bits); - free(font); -} - -/* Free a font. If freeProps is 0, don't free the properties. */ - -static void -FreeTypeFreeXFont(FontPtr pFont, int freeProps) -{ - FTFontPtr tf; - - if(pFont) { - if((tf = (FTFontPtr)pFont->fontPrivate)) { - FreeTypeFreeFont(tf); - } - if(freeProps && pFont->info.nprops>0) { - free(pFont->info.isStringProp); - free(pFont->info.props); - } - DestroyFontRec(pFont); - } -} - - -/* Unload a font */ - -static void -FreeTypeUnloadXFont(FontPtr pFont) -{ - MUMBLE("Unloading\n"); - FreeTypeFreeXFont(pFont, 1); -} - -/* Add the font properties, including the Font name, the XLFD - properties, some strings from the font, and various typographical - data. We only provide data readily available in the tables in the - font for now, altough FIGURE_WIDTH would be a good idea as it is - used by Xaw. */ - -static int -FreeTypeAddProperties(FTFontPtr font, FontScalablePtr vals, FontInfoPtr info, - char *fontname, int rawAverageWidth, Bool font_properties) -{ - int i, j, maxprops; - char *sp, *ep, val[MAXFONTNAMELEN], *vp; - FTFacePtr face; - FTInstancePtr instance; - FTNormalisedTransformationPtr trans; - int upm; - TT_OS2 *os2; - TT_Postscript *post; - PS_FontInfoRec t1info_rec, *t1info; - int xlfdProps = 0; - int ftrc; - - instance = font->instance; - face = instance->face; - trans = &instance->transformation; - upm = face->face->units_per_EM; - if(upm == 0) { - /* Work around FreeType bug */ - upm = WORK_AROUND_UPM; - } - - os2 = FT_Get_Sfnt_Table(face->face, ft_sfnt_os2); - post = FT_Get_Sfnt_Table(face->face, ft_sfnt_post); - ftrc = FT_Get_PS_Font_Info(face->face, &t1info_rec); - if(ftrc == 0) - t1info = &t1info_rec; - else - t1info = NULL; - - if(t1info) { - os2 = NULL; - post = NULL; - } - - info->nprops = 0; /* in case we abort */ - - strcpy(val, fontname); - if(FontParseXLFDName(val, vals, FONT_XLFD_REPLACE_VALUE)) { - xlfdProps = 1; - } else { - MUMBLE("Couldn't parse XLFD\n"); - xlfdProps = 0; - } - - maxprops= - 1 + /* NAME */ - (xlfdProps ? 14 : 0) + /* from XLFD */ - 5 + - ( !face->bitmap ? 3 : 0 ) + /* raw_av,raw_asc,raw_dec */ - ( font_properties ? 2 : 0 ) + /* asc,dec */ - ( (font_properties && os2) ? 6 : 0 ) + - ( (font_properties && (post || t1info)) ? 3 : 0 ) + - 2; /* type */ - - info->props = malloc(maxprops * sizeof(FontPropRec)); - if(info->props == NULL) - return AllocError; - - info->isStringProp = malloc(maxprops); - if(info->isStringProp == NULL) { - free(info->props); - return AllocError; - } - - memset((char *)info->isStringProp, 0, maxprops); - - i = 0; - - info->props[i].name = MakeAtom("FONT", 4, TRUE); - info->props[i].value = MakeAtom(val, strlen(val), TRUE); - info->isStringProp[i] = 1; - i++; - - if(*val && *(sp = val + 1)) { - for (j = 0, sp = val + 1; j < 14; j++) { - if (j == 13) - /* Handle the case of the final field containing a subset - specification. */ - for (ep = sp; *ep && *ep != '['; ep++); - else - for (ep = sp; *ep && *ep != '-'; ep++); - - info->props[i].name = - MakeAtom(xlfd_props[j], strlen(xlfd_props[j]), TRUE); - - switch(j) { - case 6: /* pixel size */ - info->props[i].value = - (int)(fabs(vals->pixel_matrix[3]) + 0.5); - i++; - break; - case 7: /* point size */ - info->props[i].value = - (int)(fabs(vals->point_matrix[3])*10.0 + 0.5); - i++; - break; - case 8: /* resolution x */ - info->props[i].value = vals->x; - i++; - break; - case 9: /* resolution y */ - info->props[i].value = vals->y; - i++; - break; - case 11: /* average width */ - info->props[i].value = vals->width; - i++; - break; - default: /* a string */ - info->props[i].value = MakeAtom(sp, ep - sp, TRUE); - info->isStringProp[i] = 1; - i++; - } - sp = ++ep; - } - } - - info->props[i].name = MakeAtom("RAW_PIXEL_SIZE", 14, TRUE); - info->props[i].value = 1000; - i++; - - info->props[i].name = MakeAtom("RAW_POINT_SIZE", 14, TRUE); - info->props[i].value = (long)(72270.0 / (double)vals->y + .5); - i++; - - if(!face->bitmap) { - info->props[i].name = MakeAtom("RAW_AVERAGE_WIDTH", 17, TRUE); - info->props[i].value = rawAverageWidth; - i++; - } - - if ( font_properties ) { - info->props[i].name = MakeAtom("FONT_ASCENT", 11, TRUE); - info->props[i].value = info->fontAscent; - i++; - } - - if(!face->bitmap) { - info->props[i].name = MakeAtom("RAW_ASCENT", 10, TRUE); - info->props[i].value = - ((double)face->face->ascender/(double)upm*1000.0); - i++; - } - - if ( font_properties ) { - info->props[i].name = MakeAtom("FONT_DESCENT", 12, TRUE); - info->props[i].value = info->fontDescent; - i++; - } - - if(!face->bitmap) { - info->props[i].name = MakeAtom("RAW_DESCENT", 11, TRUE); - info->props[i].value = - -((double)face->face->descender/(double)upm*1000.0); - i++; - } - - j = FTGetEnglishName(face->face, TT_NAME_ID_COPYRIGHT, - val, MAXFONTNAMELEN); - vp = val; - if (j < 0) { - if(t1info && t1info->notice) { - vp = t1info->notice; - j = strlen(vp); - } - } - if(j > 0) { - info->props[i].name = MakeAtom("COPYRIGHT", 9, TRUE); - info->props[i].value = MakeAtom(vp, j, TRUE); - info->isStringProp[i] = 1; - i++; - } - - j = FTGetEnglishName(face->face, TT_NAME_ID_FULL_NAME, - val, MAXFONTNAMELEN); - vp = val; - if (j < 0) { - if(t1info && t1info->full_name) { - vp = t1info->full_name; - j = strlen(vp); - } - } - if(j > 0) { - info->props[i].name = MakeAtom("FACE_NAME", 9, TRUE); - info->props[i].value = MakeAtom(vp, j, TRUE); - info->isStringProp[i] = 1; - i++; - } - - vp = (char *)FT_Get_Postscript_Name(face->face); - if (vp) { - j = strlen(vp); - } else { - j = -1; - } - if (j < 0) { - j = FTGetEnglishName(face->face, TT_NAME_ID_PS_NAME, - val, MAXFONTNAMELEN); - vp = val; - } - if (j < 0) { - if(t1info && t1info->full_name) { - vp = t1info->full_name; - j = strlen(vp); - } - } - if(j > 0) { - info->props[i].name = MakeAtom("_ADOBE_POSTSCRIPT_FONTNAME", 26, TRUE); - info->props[i].value = MakeAtom(vp, j, TRUE); - info->isStringProp[i] = 1; - i++; - } - - /* These macros handle the case of a diagonal matrix. They convert - FUnits into pixels. */ -#define TRANSFORM_FUNITS_X(xval) \ - ((int) \ - floor( ((double)(xval)/(double)upm) * (double)vals->pixel_matrix[0] + 0.5 ) ) - -#define TRANSFORM_FUNITS_Y(yval) \ - ((int) \ - floor( ((double)(yval)/(double)upm) * (double)vals->pixel_matrix[3] + 0.5 ) ) - - /* In what follows, we assume the matrix is diagonal. In the rare - case when it is not, the values will be somewhat wrong. */ - - if( font_properties && os2 ) { - info->props[i].name = MakeAtom("SUBSCRIPT_SIZE",14,TRUE); - info->props[i].value = - TRANSFORM_FUNITS_Y(os2->ySubscriptYSize); - i++; - info->props[i].name = MakeAtom("SUBSCRIPT_X",11,TRUE); - info->props[i].value = - TRANSFORM_FUNITS_X(os2->ySubscriptXOffset); - i++; - info->props[i].name = MakeAtom("SUBSCRIPT_Y",11,TRUE); - info->props[i].value = - TRANSFORM_FUNITS_Y(os2->ySubscriptYOffset); - i++; - info->props[i].name = MakeAtom("SUPERSCRIPT_SIZE",16,TRUE); - info->props[i].value = - TRANSFORM_FUNITS_Y(os2->ySuperscriptYSize); - i++; - info->props[i].name = MakeAtom("SUPERSCRIPT_X",13,TRUE); - info->props[i].value = - TRANSFORM_FUNITS_X(os2->ySuperscriptXOffset); - i++; - info->props[i].name = MakeAtom("SUPERSCRIPT_Y",13,TRUE); - info->props[i].value = - TRANSFORM_FUNITS_Y(os2->ySuperscriptYOffset); - i++; - } - - if( font_properties && (post || t1info) ) { - int underlinePosition, underlineThickness; - - /* Raw underlineposition counts upwards, - but UNDERLINE_POSITION counts downwards. */ - if(post) { - underlinePosition = TRANSFORM_FUNITS_Y(-post->underlinePosition); - underlineThickness = TRANSFORM_FUNITS_Y(post->underlineThickness); - } else { - underlinePosition = - TRANSFORM_FUNITS_Y(-t1info->underline_position); - underlineThickness = - TRANSFORM_FUNITS_Y(t1info->underline_thickness); - } - if(underlineThickness <= 0) - underlineThickness = 1; - - info->props[i].name = MakeAtom("UNDERLINE_THICKNESS",19,TRUE); - info->props[i].value = underlineThickness; - i++; - - info->props[i].name = MakeAtom("UNDERLINE_POSITION",18,TRUE); - - info->props[i].value = underlinePosition; - - i++; - - /* The italic angle is often unreliable for Type 1 fonts */ - if(post && trans->matrix.xx == trans->matrix.yy) { - info->props[i].name = MakeAtom("ITALIC_ANGLE",12,TRUE); - info->props[i].value = - /* Convert from TT_Fixed to - 64th of a degree counterclockwise from 3 o'clock */ - 90*64+(post->italicAngle >> 10); - i++; - } -#undef TRANSFORM_FUNITS_X -#undef TRANSFORM_FUNITS_Y - } - - info->props[i].name = MakeAtom("FONT_TYPE", 9, TRUE); - vp = (char *)FT_Get_X11_Font_Format(face->face); - info->props[i].value = MakeAtom(vp, strlen(vp), TRUE); - info->isStringProp[i] = 1; - i++; - - info->props[i].name = MakeAtom("RASTERIZER_NAME", 15, TRUE); - info->props[i].value = MakeAtom("FreeType", 10, TRUE); - info->isStringProp[i] = 1; - i++; - - info->nprops = i; - return Successful; -} - -static int -ft_get_index(unsigned code, FTFontPtr font, unsigned *idx) -{ - - /* As a special case, we pass 0 even when it is not in the ranges; - this will allow for the default glyph, which should exist in any - TrueType font. */ - - /* This is not required... - if(code > 0 && font->nranges) { - int i; - for(i = 0; i < font->nranges; i++) - if((code >= - font->ranges[i].min_char_low+ - (font->ranges[i].min_char_high<<8)) && - (code <= - font->ranges[i].max_char_low + - (font->ranges[i].max_char_high<<8))) - break; - if(i == font->nranges) { - *idx = font->zero_idx; - return -1; - } - } - */ - if( font->info ) { - if( !( font->info->firstCol <= (code & 0x000ff) && - (code & 0x000ff) <= font->info->lastCol && - font->info->firstRow <= (code >> 8) && - (code >> 8) <= font->info->lastRow ) ) { - *idx = font->zero_idx; - /* Error: The code has not been parsed in ft_compute_bounds()! - We should not return any metrics. */ - return -1; - } - } - - *idx = FTRemap(font->instance->face->face, &font->mapping, code); - - return 0; -} - -static int -FreeTypeFontGetGlyph(unsigned code, int flags, CharInfoPtr *g, FTFontPtr font) -{ - unsigned idx = 0; - int xrc; - -#ifdef X_ACCEPTS_NO_SUCH_CHAR - if( ft_get_index(code,font,&idx) || idx == 0 || idx == font->zero_idx ) { - *g = NULL; - flags &= ~FT_FORCE_CONSTANT_SPACING; - /* if( font->instance->spacing != FT_CHARCELL ) */ - return Successful; - } -#else - if( ft_get_index(code,font,&idx) ) { - /* The code has not been parsed! */ - *g = NULL; - flags &= ~FT_FORCE_CONSTANT_SPACING; - } -#endif - - xrc = FreeTypeInstanceGetGlyph(idx, flags, g, font->instance); - if( xrc == Successful && *g != NULL ) - return Successful; - if( font->zero_idx != idx ) { - xrc = FreeTypeInstanceGetGlyph(font->zero_idx, flags, g, font->instance); - if( xrc == Successful && *g != NULL ) - return Successful; - } - return FreeTypeInstanceGetGlyph(font->zero_idx, flags|FT_GET_DUMMY, g, font->instance); -} - -static int -FreeTypeFontGetGlyphMetrics(unsigned code, int flags, xCharInfo **metrics, FTFontPtr font) -{ - unsigned idx = 0; - int xrc; - -#ifdef X_ACCEPTS_NO_SUCH_CHAR - if ( ft_get_index(code,font,&idx) || idx == 0 || idx == font->zero_idx ) { - *metrics = NULL; - flags &= ~FT_FORCE_CONSTANT_SPACING; - /* if( font->instance->spacing != FT_CHARCELL ) */ - return Successful; - } -#else - if ( ft_get_index(code,font,&idx) || idx == 0 || idx == font->zero_idx ) { - /* The code has not been parsed! */ - *metrics = NULL; - flags &= ~FT_FORCE_CONSTANT_SPACING; - } -#endif - - xrc = FreeTypeInstanceGetGlyphMetrics(idx, flags, metrics, font->instance); - if( xrc == Successful && *metrics != NULL ) - return Successful; - if( font->zero_idx != idx ) { - xrc = FreeTypeInstanceGetGlyphMetrics(font->zero_idx, flags, - metrics, font->instance); - if( xrc == Successful && *metrics != NULL ) - return Successful; - } - return FreeTypeInstanceGetGlyphMetrics(font->zero_idx, flags|FT_GET_DUMMY, metrics, font->instance); -} - -/* - * restrict code range - * - * boolean for the numeric zone: - * results = results & (ranges[0] | ranges[1] | ... ranges[nranges-1]) - */ - -static void -restrict_code_range(unsigned short *refFirstCol, - unsigned short *refFirstRow, - unsigned short *refLastCol, - unsigned short *refLastRow, - fsRange const *ranges, int nRanges) -{ - if (nRanges) { - int minCol = 256, minRow = 256, maxCol = -1, maxRow = -1; - fsRange const *r = ranges; - int i; - - for (i=0; i<nRanges; i++) { - if (r->min_char_high != r->max_char_high) { - minCol = 0x00; - maxCol = 0xff; - } else { - if (minCol > r->min_char_low) - minCol = r->min_char_low; - if (maxCol < r->max_char_low) - maxCol = r->max_char_low; - } - if (minRow > r->min_char_high) - minRow = r->min_char_high; - if (maxRow < r->max_char_high) - maxRow = r->max_char_high; - r++; - } - - if (minCol > *refLastCol) - *refFirstCol = *refLastCol; - else if (minCol > *refFirstCol) - *refFirstCol = minCol; - - if (maxCol < *refFirstCol) - *refLastCol = *refFirstCol; - else if (maxCol < *refLastCol) - *refLastCol = maxCol; - - if (minRow > *refLastRow) { - *refFirstRow = *refLastRow; - *refFirstCol = *refLastCol; - } else if (minRow > *refFirstRow) - *refFirstRow = minRow; - - if (maxRow < *refFirstRow) { - *refLastRow = *refFirstRow; - *refLastCol = *refFirstCol; - } else if (maxRow < *refLastRow) - *refLastRow = maxRow; - } -} - - -static int -restrict_code_range_by_str(int count,unsigned short *refFirstCol, - unsigned short *refFirstRow, - unsigned short *refLastCol, - unsigned short *refLastRow, - char const *str) -{ - int nRanges = 0; - int result = 0; - fsRange *ranges = NULL; - char const *p, *q; - - p = q = str; - for (;;) { - int minpoint=0, maxpoint=65535; - long val; - - /* skip comma and/or space */ - while (',' == *p || isspace(*p)) - p++; - - /* begin point */ - if ('-' != *p) { - val = strtol(p, (char **)&q, 0); - if (p == q) - /* end or illegal */ - break; - if (val<0 || val>65535) { - /* out of zone */ - break; - } - minpoint = val; - p=q; - } - - /* skip space */ - while (isspace(*p)) - p++; - - if (',' != *p && '\0' != *p) { - /* contiune */ - if ('-' == *p) - /* hyphon */ - p++; - else - /* end or illegal */ - break; - - /* skip space */ - while (isspace(*p)) - p++; - - val = strtol(p, (char **)&q, 0); - if (p != q) { - if (val<0 || val>65535) - break; - maxpoint = val; - } else if (',' != *p && '\0' != *p) - /* end or illegal */ - break; - p=q; - } else - /* comma - single code */ - maxpoint = minpoint; - - if ( count <= 0 && minpoint>maxpoint ) { - int tmp; - tmp = minpoint; - minpoint = maxpoint; - maxpoint = tmp; - } - - /* add range */ -#if 0 - fprintf(stderr, "zone: 0x%04X - 0x%04X\n", minpoint, maxpoint); - fflush(stderr); -#endif - nRanges++; - ranges = realloc(ranges, nRanges*sizeof(*ranges)); - if (NULL == ranges) - break; - { - fsRange *r = ranges+nRanges-1; - - r->min_char_low = minpoint & 0xff; - r->max_char_low = maxpoint & 0xff; - r->min_char_high = (minpoint>>8) & 0xff; - r->max_char_high = (maxpoint>>8) & 0xff; - } - } - - if (ranges) { - if ( count <= 0 ) { - restrict_code_range(refFirstCol, refFirstRow, refLastCol, refLastRow, - ranges, nRanges); - } - else { - int i; - fsRange *r; - for ( i=0 ; i<nRanges ; i++ ) { - if ( count <= i ) break; - r = ranges+i; - refFirstCol[i] = r->min_char_low; - refLastCol[i] = r->max_char_low; - refFirstRow[i] = r->min_char_high; - refLastRow[i] = r->max_char_high; - } - result=i; - } - free(ranges); - } - return result; -} - -/* *face_number and *spacing are initialized but *load_flags is NOT. */ -static int -FreeTypeSetUpTTCap( char *fileName, FontScalablePtr vals, - char **dynStrRealFileName, char **dynStrFTFileName, - struct TTCapInfo *ret, int *face_number, FT_Int32 *load_flags, - int *spacing, Bool *font_properties, char **dynStrTTCapCodeRange ) -{ - int result = Successful; - SDynPropRecValList listPropRecVal; - SPropRecValContainer contRecValue; - Bool hinting=True; - Bool isEmbeddedBitmap = True; - Bool alwaysEmbeddedBitmap = False; - int pixel = vals->pixel; - - *font_properties=True; - *dynStrRealFileName=NULL; - *dynStrFTFileName=NULL; - *dynStrTTCapCodeRange=NULL; - - if (SPropRecValList_new(&listPropRecVal)) { - return AllocError; - } - - { - int len = strlen(fileName); - char *capHead = NULL; - { - /* font cap */ - char *p1=NULL, *p2=NULL; - - p1=strrchr(fileName, '/'); - if ( p1 == NULL ) p1 = fileName; - else p1++; - if (NULL != (p2=strrchr(p1, ':'))) { - /* colon exist in the right side of slash. */ - int dirLen = p1-fileName; - int baseLen = fileName+len - p2 -1; - - *dynStrRealFileName = malloc(dirLen+baseLen+1); - if( *dynStrRealFileName == NULL ) { - result = AllocError; - goto quit; - } - if ( 0 < dirLen ) - memcpy(*dynStrRealFileName, fileName, dirLen); - strcpy(*dynStrRealFileName+dirLen, p2+1); - capHead = p1; - } else { - *dynStrRealFileName = xstrdup(fileName); - if( *dynStrRealFileName == NULL ) { - result = AllocError; - goto quit; - } - } - } - - /* font cap */ - if (capHead) { - if (SPropRecValList_add_by_font_cap(&listPropRecVal, - capHead)) { - result = BadFontPath; - goto quit; - } - } - } - - *face_number=0; - *spacing=0; - ret->autoItalic=0.0; - ret->scaleWidth=1.0; - ret->scaleBBoxWidth = 1.0; - ret->scaleBBoxHeight = 1.0; - ret->doubleStrikeShift = 1; - ret->adjustBBoxWidthByPixel = 0; - ret->adjustLeftSideBearingByPixel = 0; - ret->adjustRightSideBearingByPixel = 0; - ret->flags = 0; - ret->scaleBitmap = 0.0; - ret->forceConstantSpacingBegin = -1; - ret->forceConstantSpacingEnd = -1; - ret->force_c_representative_metrics_char_code = -2; - ret->force_c_scale_b_box_width = 1.0; - ret->force_c_scale_b_box_height = 1.0; - ret->force_c_adjust_width_by_pixel = 0; - ret->force_c_adjust_lsb_by_pixel = 0; - ret->force_c_adjust_rsb_by_pixel = 0; - ret->force_c_scale_lsb = 0.0; - ret->force_c_scale_rsb = 1.0; - /* */ - ret->vl_slant=0; - ret->lsbShiftOfBitmapAutoItalic=0; - ret->rsbShiftOfBitmapAutoItalic=0; - /* face number */ - { - char *beginptr=NULL,*endptr; - if ( SPropRecValList_search_record(&listPropRecVal, - &contRecValue, - "FaceNumber")) { - int lv; - beginptr = SPropContainer_value_str(contRecValue); - lv=strtol(beginptr, &endptr, 10); - if ( *beginptr != '\0' && *endptr == '\0' ) { - if ( 0 < lv ) *face_number = lv; - } - } - if( beginptr && 0 < *face_number ) { - char *slash; - *dynStrFTFileName = /* add -> ':'+strlen0+':'+strlen1+'\0' */ - malloc(1+strlen(beginptr)+1+strlen(*dynStrRealFileName)+1); - if( *dynStrFTFileName == NULL ){ - result = AllocError; - goto quit; - } - **dynStrFTFileName = '\0'; - slash = strrchr(*dynStrRealFileName,'/'); - if( slash ) { - char *p; - strcat(*dynStrFTFileName,*dynStrRealFileName); - p = strrchr(*dynStrFTFileName,'/'); - p[1] = '\0'; - strcat(*dynStrFTFileName,":"); - strcat(*dynStrFTFileName,beginptr); - strcat(*dynStrFTFileName,":"); - strcat(*dynStrFTFileName,slash+1); - } - else{ - strcat(*dynStrFTFileName,":"); - strcat(*dynStrFTFileName,beginptr); - strcat(*dynStrFTFileName,":"); - strcat(*dynStrFTFileName,*dynStrRealFileName); - } - } - else{ - *dynStrFTFileName = malloc(strlen(*dynStrRealFileName)+1); - if( *dynStrFTFileName == NULL ){ - result = AllocError; - goto quit; - } - **dynStrFTFileName = '\0'; - strcat(*dynStrFTFileName,*dynStrRealFileName); - } - } - /* - fprintf(stderr,"[Filename:%s]\n",fileName); - fprintf(stderr,"[RealFilename:%s]\n",*dynStrRealFileName); - fprintf(stderr,"[FTFilename:%s]\n",*dynStrFTFileName); - */ - /* slant control */ - if (SPropRecValList_search_record(&listPropRecVal, - &contRecValue, - "AutoItalic")) - ret->autoItalic = SPropContainer_value_dbl(contRecValue); - /* hinting control */ - if (SPropRecValList_search_record(&listPropRecVal, - &contRecValue, - "Hinting")) - hinting = SPropContainer_value_bool(contRecValue); - /* scaling */ - if (SPropRecValList_search_record(&listPropRecVal, - &contRecValue, - "ScaleWidth")) { - ret->scaleWidth = SPropContainer_value_dbl(contRecValue); - if (ret->scaleWidth<=0.0) { - fprintf(stderr, "ScaleWitdh needs plus.\n"); - result = BadFontName; - goto quit; - } - } - /* bbox adjustment */ - if (SPropRecValList_search_record(&listPropRecVal, - &contRecValue, - "ScaleBBoxWidth")) { - /* Scaling to Bounding Box Width */ - int lv; - char *endptr,*beginptr; - double v,scaleBBoxWidth=1.0,scaleBBoxHeight=1.0; - beginptr = SPropContainer_value_str(contRecValue); - do { - if ( strlen(beginptr) < 1 ) break; - v=strtod(beginptr, &endptr); - if ( endptr!=beginptr ) { - scaleBBoxWidth = v; - } - if ( *endptr != ';' && *endptr != ',' ) break; - if ( *endptr == ',' ) { - beginptr=endptr+1; - v=strtod(beginptr, &endptr); - if ( endptr!=beginptr ) { - scaleBBoxHeight = v; - } - } - if ( *endptr != ';' && *endptr != ',' ) break; - beginptr=endptr+1; - lv=strtol(beginptr, &endptr, 10); - if ( endptr!=beginptr ) { - ret->adjustBBoxWidthByPixel = lv; - } - if ( *endptr != ',' ) break; - beginptr=endptr+1; - lv=strtol(beginptr, &endptr, 10); - if ( endptr!=beginptr ) { - ret->adjustLeftSideBearingByPixel = lv; - } - if ( *endptr != ',' ) break; - beginptr=endptr+1; - lv=strtol(beginptr, &endptr, 10); - if ( endptr!=beginptr ) { - ret->adjustRightSideBearingByPixel = lv; - } - } while ( 0 ); - if (scaleBBoxWidth<=0.0) { - fprintf(stderr, "ScaleBBoxWitdh needs plus.\n"); - result = BadFontName; - goto quit; - } - if (scaleBBoxHeight<=0.0) { - fprintf(stderr, "ScaleBBoxHeight needs plus.\n"); - result = BadFontName; - goto quit; - } - ret->scaleBBoxWidth = scaleBBoxWidth; - ret->scaleBBoxHeight = scaleBBoxHeight; - } - /* spacing */ - if (SPropRecValList_search_record(&listPropRecVal, - &contRecValue, - "ForceSpacing")) { - char *strSpace = SPropContainer_value_str(contRecValue); - Bool err = False; - if (1 != strlen(strSpace)) - err = True; - else - switch (strSpace[0]) { - case 'M': - ret->flags |= TTCAP_MONO_CENTER; - *spacing = 'm'; - break; - case 'm': - case 'p': - case 'c': - *spacing = strSpace[0]; - break; - default: - err = True; - } - if (err) { - result = BadFontName; - goto quit; - } - } - /* doube striking */ - if (SPropRecValList_search_record(&listPropRecVal, - &contRecValue, - "DoubleStrike")) { - /* Set or Reset Auto Bold Flag */ - char *strDoubleStrike = SPropContainer_value_str(contRecValue); - Bool err = False; - if ( 0 < strlen(strDoubleStrike) ) { - switch (strDoubleStrike[0]) { - case 'm': - case 'M': - case 'l': - case 'L': - ret->flags |= TTCAP_DOUBLE_STRIKE; - ret->flags |= TTCAP_DOUBLE_STRIKE_MKBOLD_EDGE_LEFT; - break; - case 'y': - case 'Y': - ret->flags |= TTCAP_DOUBLE_STRIKE; - break; - case 'n': - case 'N': - ret->flags &= ~TTCAP_DOUBLE_STRIKE; - ret->flags &= ~TTCAP_DOUBLE_STRIKE_MKBOLD_EDGE_LEFT; - ret->flags &= ~TTCAP_DOUBLE_STRIKE_CORRECT_B_BOX_WIDTH; - break; - default: - err = True; - } - if ( err != True ) { - if ( strDoubleStrike[1] ) { - switch (strDoubleStrike[1]) { - case 'b': - case 'B': - case 'p': - case 'P': - case 'y': - case 'Y': - ret->flags |= TTCAP_DOUBLE_STRIKE_CORRECT_B_BOX_WIDTH; - break; - default: - break; - } - } - do { - char *comma_ptr=strchr(strDoubleStrike,';'); - if ( !comma_ptr ) comma_ptr=strchr(strDoubleStrike,','); - if ( !comma_ptr ) break; - if ( comma_ptr[1] ) { - char *endptr; - int mkboldMaxPixel; - mkboldMaxPixel=strtol(comma_ptr+1, &endptr, 10); - if ( endptr != comma_ptr+1 && mkboldMaxPixel <= pixel ) { - ret->flags &= ~TTCAP_DOUBLE_STRIKE_MKBOLD_EDGE_LEFT; - } - } - comma_ptr=strchr(comma_ptr+1,','); - if ( !comma_ptr ) break; - if ( comma_ptr[1] ) { - char *endptr; - int max_pixel; - max_pixel=strtol(comma_ptr+1, &endptr, 10); - if ( endptr != comma_ptr+1 && max_pixel <= pixel ) { - if( ret->flags & TTCAP_DOUBLE_STRIKE ) - ret->doubleStrikeShift += pixel / max_pixel; - } - } - } while(0); - } - } - else - err = True; - if (err) { - result = BadFontName; - goto quit; - } - } - /* very lazy metrics */ - if (SPropRecValList_search_record(&listPropRecVal, - &contRecValue, - "VeryLazyMetrics")){ - Bool isVeryLazy = SPropContainer_value_bool(contRecValue); - ret->flags |= TTCAP_DISABLE_DEFAULT_VERY_LAZY; - if( isVeryLazy == True ) - ret->flags |= TTCAP_IS_VERY_LAZY; - else - ret->flags &= ~TTCAP_IS_VERY_LAZY; - } - /* embedded bitmap */ - if (SPropRecValList_search_record(&listPropRecVal, - &contRecValue, - "EmbeddedBitmap")) { - char *strEmbeddedBitmap = SPropContainer_value_str(contRecValue); - Bool err = False; - if ( 1 == strlen(strEmbeddedBitmap) ) { - switch (strEmbeddedBitmap[0]) { - case 'y': - case 'Y': - isEmbeddedBitmap = True; - alwaysEmbeddedBitmap = True; - break; - case 'u': - case 'U': - isEmbeddedBitmap = True; - alwaysEmbeddedBitmap = False; - break; - case 'n': - case 'N': - isEmbeddedBitmap = False; - break; - default: - err = True; - } - } - else - err = True; - if (err) { - result = BadFontName; - goto quit; - } - } - /* scale bitmap */ - if((ret->flags & TTCAP_IS_VERY_LAZY) && - SPropRecValList_search_record(&listPropRecVal, - &contRecValue, - "VeryLazyBitmapWidthScale")) { - /* Scaling to Bitmap Bounding Box Width */ - double scaleBitmapWidth = SPropContainer_value_dbl(contRecValue); - - fprintf(stderr, "Warning: `bs' option is not required in X-TT version 2.\n"); -#if 0 - if (scaleBitmapWidth<=0.0) { - fprintf(stderr, "ScaleBitmapWitdh needs plus.\n"); - result = BadFontName; - goto quit; - } -#endif - ret->scaleBitmap = scaleBitmapWidth; - } - /* restriction of the code range */ - if (SPropRecValList_search_record(&listPropRecVal, - &contRecValue, - "CodeRange")) { - *dynStrTTCapCodeRange = xstrdup(SPropContainer_value_str(contRecValue)); - if( *dynStrTTCapCodeRange == NULL ) { - result = AllocError; - goto quit; - } - } - /* forceConstantSpacing{Begin,End} */ - if ( 1 /* ft->spacing == 'p' */ ){ - unsigned short first_col=0,last_col=0x00ff; - unsigned short first_row=0,last_row=0x00ff; - if (SPropRecValList_search_record(&listPropRecVal, - &contRecValue, - "ForceConstantSpacingCodeRange")) { - if ( restrict_code_range_by_str(1,&first_col, &first_row, - &last_col, &last_row, - SPropContainer_value_str(contRecValue)) == 1 ) { - ret->forceConstantSpacingBegin = (int)( first_row<<8 | first_col ); - ret->forceConstantSpacingEnd = (int)( last_row<<8 | last_col ); - if ( ret->forceConstantSpacingBegin <= ret->forceConstantSpacingEnd ) - ret->flags &= ~TTCAP_FORCE_C_OUTSIDE; - else ret->flags |= TTCAP_FORCE_C_OUTSIDE; - } - } - } - /* */ - if ( 1 ){ - unsigned short first_col=0, last_col=0x0ff; - unsigned short first_row=0, last_row=0x0ff; - if ( SPropRecValList_search_record(&listPropRecVal, - &contRecValue, - "ForceConstantSpacingMetrics")) { - char *strMetrics; - strMetrics = SPropContainer_value_str(contRecValue); - if ( strMetrics ) { - char *comma_ptr,*period_ptr,*semic_ptr; - semic_ptr=strchr(strMetrics,';'); - comma_ptr=strchr(strMetrics,','); - period_ptr=strchr(strMetrics,'.'); - if ( semic_ptr && comma_ptr ) - if ( semic_ptr < comma_ptr ) comma_ptr=NULL; - if ( semic_ptr && period_ptr ) - if ( semic_ptr < period_ptr ) period_ptr=NULL; - if ( !comma_ptr && !period_ptr && strMetrics != semic_ptr ) { - if ( restrict_code_range_by_str(1,&first_col, &first_row, - &last_col, &last_row, - SPropContainer_value_str(contRecValue)) == 1 ) { - ret->force_c_representative_metrics_char_code = - (int)( first_row<<8 | first_col ); - } - } - else { - double v; - char *endptr,*beginptr=strMetrics; - do { - v=strtod(beginptr, &endptr); - if ( endptr!=beginptr ) { - ret->force_c_scale_b_box_width = v; - } - if ( *endptr != ',' ) break; - beginptr=endptr+1; - v=strtod(beginptr, &endptr); - if ( endptr!=beginptr ) { - ret->force_c_scale_lsb = v; - ret->flags |= TTCAP_FORCE_C_LSB_FLAG; - } - if ( *endptr != ',' ) break; - beginptr=endptr+1; - v=strtod(beginptr, &endptr); - if ( endptr!=beginptr ) { - ret->force_c_scale_rsb = v; - ret->flags |= TTCAP_FORCE_C_RSB_FLAG; - } - if ( *endptr != ',' ) break; - beginptr=endptr+1; - v=strtod(beginptr, &endptr); - if ( endptr!=beginptr ) { - ret->force_c_scale_b_box_height = v; - } - } while (0); - } - if ( semic_ptr ) { - int lv; - char *endptr,*beginptr=semic_ptr+1; - do { - lv=strtol(beginptr, &endptr, 10); - if ( endptr!=beginptr ) { - ret->force_c_adjust_width_by_pixel=lv; - } - if ( *endptr != ',' ) break; - beginptr=endptr+1; - lv=strtol(beginptr, &endptr, 10); - if ( endptr!=beginptr ) { - ret->force_c_adjust_lsb_by_pixel=lv; - } - if ( *endptr != ',' ) break; - beginptr=endptr+1; - lv=strtol(beginptr, &endptr, 10); - if ( endptr!=beginptr ) { - ret->force_c_adjust_rsb_by_pixel=lv; - } - } while (0); - } - } - } - } - - if (SPropRecValList_search_record(&listPropRecVal, - &contRecValue, - "FontProperties")) { - /* Set or Reset the Flag of FontProperties */ - *font_properties=SPropContainer_value_bool(contRecValue); - } - - ret->force_c_scale_b_box_width *= ret->scaleBBoxWidth; - ret->force_c_scale_b_box_height *= ret->scaleBBoxHeight; - - ret->force_c_scale_b_box_width *= ret->scaleWidth; - ret->scaleBBoxWidth *= ret->scaleWidth; - - ret->force_c_adjust_rsb_by_pixel += ret->adjustRightSideBearingByPixel; - ret->force_c_adjust_lsb_by_pixel += ret->adjustLeftSideBearingByPixel; - - /* scaleWidth, scaleBBoxWidth, force_c_scale_b_box_width, force_c_scale_b_box_width */ - - /* by TTCap */ - if( hinting == False ) *load_flags |= FT_LOAD_NO_HINTING; - if( isEmbeddedBitmap == False ) *load_flags |= FT_LOAD_NO_BITMAP; - if( ret->autoItalic != 0 && alwaysEmbeddedBitmap == False ) - *load_flags |= FT_LOAD_NO_BITMAP; - - quit: - return result; -} - -static int -ft_get_trans_from_vals( FontScalablePtr vals, FTNormalisedTransformationPtr trans ) -{ - /* Compute the transformation matrix. We use floating-point - arithmetic for simplicity */ - - trans->xres = vals->x; - trans->yres = vals->y; - - /* This value cannot be 0. */ - trans->scale = hypot(vals->point_matrix[2], vals->point_matrix[3]); - trans->nonIdentity = 0; - - /* Try to round stuff. We want approximate zeros to be exact zeros, - and if the elements on the diagonal are approximately equal, we - want them equal. We do this to avoid breaking hinting. */ - if(DIFFER(vals->point_matrix[0], vals->point_matrix[3])) { - trans->nonIdentity = 1; - trans->matrix.xx = - (int)((vals->point_matrix[0]*(double)TWO_SIXTEENTH)/trans->scale); - trans->matrix.yy = - (int)((vals->point_matrix[3]*(double)TWO_SIXTEENTH)/trans->scale); - } else { - trans->matrix.xx = trans->matrix.yy = - ((vals->point_matrix[0] + vals->point_matrix[3])/2* - (double)TWO_SIXTEENTH)/trans->scale; - } - - if(DIFFER0(vals->point_matrix[1], trans->scale)) { - trans->matrix.yx = - (int)((vals->point_matrix[1]*(double)TWO_SIXTEENTH)/trans->scale); - trans->nonIdentity = 1; - } else - trans->matrix.yx = 0; - - if(DIFFER0(vals->point_matrix[2], trans->scale)) { - trans->matrix.xy = - (int)((vals->point_matrix[2]*(double)TWO_SIXTEENTH)/trans->scale); - trans->nonIdentity = 1; - } else - trans->matrix.xy=0; - return 0; -} - - -static int -is_fixed_width(FT_Face face) -{ - PS_FontInfoRec t1info_rec; - int ftrc; - - if(FT_IS_FIXED_WIDTH(face)) { - return 1; - } - - ftrc = FT_Get_PS_Font_Info(face, &t1info_rec); - if(ftrc == 0 && t1info_rec.is_fixed_pitch) { - return 1; - } - - return 0; -} - -static int -FreeTypeLoadFont(FTFontPtr font, FontInfoPtr info, FTFacePtr face, - char *FTFileName, FontScalablePtr vals, FontEntryPtr entry, - FontBitmapFormatPtr bmfmt, FT_Int32 load_flags, - struct TTCapInfo *tmp_ttcap, char *dynStrTTCapCodeRange, - int ttcap_spacing ) -{ - int xrc; - FTNormalisedTransformationRec trans; - int spacing, actual_spacing, zero_code; - long lastCode, firstCode; - TT_Postscript *post; - - ft_get_trans_from_vals(vals,&trans); - - /* Check for charcell in XLFD */ - spacing = FT_PROPORTIONAL; - if(entry->name.ndashes == 14) { - char *p; - int dashes = 0; - for(p = entry->name.name; - p <= entry->name.name + entry->name.length - 2; - p++) { - if(*p == '-') { - dashes++; - if(dashes == 11) { - if(p[1]=='c' && p[2]=='-') - spacing=FT_CHARCELL; - else if(p[1]=='m' && p[2]=='-') - spacing=FT_MONOSPACED; - break; - } - } - } - } - /* by TTCap */ - if( ttcap_spacing != 0 ) { - if( ttcap_spacing == 'c' ) spacing=FT_CHARCELL; - else if( ttcap_spacing == 'm' ) spacing=FT_MONOSPACED; - else spacing=FT_PROPORTIONAL; - } - - actual_spacing = spacing; - if( spacing == FT_PROPORTIONAL ) { - if( is_fixed_width(face->face) ) - actual_spacing = FT_MONOSPACED; - } - - if(entry->name.ndashes == 14) { - xrc = FTPickMapping(entry->name.name, entry->name.length, FTFileName, - face->face, &font->mapping); - if (xrc != Successful) - return xrc; - } else { - xrc = FTPickMapping(0, 0, FTFileName, - face->face, &font->mapping); - if (xrc != Successful) - return xrc; - } - - font->nranges = vals->nranges; - font->ranges = 0; - if(font->nranges) { - font->ranges = malloc(vals->nranges*sizeof(fsRange)); - if(font->ranges == NULL) - return AllocError; - memcpy((char*)font->ranges, (char*)vals->ranges, - vals->nranges*sizeof(fsRange)); - } - - zero_code=-1; - if(info) { - firstCode = 0; - lastCode = 0xFFFFL; - if(!font->mapping.mapping || - font->mapping.mapping->encoding->row_size == 0) { - /* linear indexing */ - lastCode=MIN(lastCode, - font->mapping.mapping ? - font->mapping.mapping->encoding->size-1 : - 0xFF); - if(font->mapping.mapping && font->mapping.mapping->encoding->first) - firstCode = font->mapping.mapping->encoding->first; - info->firstRow = firstCode/0x100; - info->lastRow = lastCode/0x100; - info->firstCol = - (info->firstRow || info->lastRow) ? 0 : (firstCode & 0xFF); - info->lastCol = info->lastRow ? 0xFF : (lastCode & 0xFF); - if ( firstCode == 0 ) zero_code=0; - } else { - /* matrix indexing */ - info->firstRow = font->mapping.mapping->encoding->first; - info->lastRow = MIN(font->mapping.mapping->encoding->size-1, - lastCode/0x100); - info->firstCol = font->mapping.mapping->encoding->first_col; - info->lastCol = MIN(font->mapping.mapping->encoding->row_size-1, - lastCode<0x100?lastCode:0xFF); - if( info->firstRow == 0 && info->firstCol == 0 ) zero_code=0; - } - - /* firstCode and lastCode are not valid in case of a matrix - encoding */ - - if( dynStrTTCapCodeRange ) { - restrict_code_range_by_str(0,&info->firstCol, &info->firstRow, - &info->lastCol, &info->lastRow, - dynStrTTCapCodeRange); - } - restrict_code_range(&info->firstCol, &info->firstRow, - &info->lastCol, &info->lastRow, - font->ranges, font->nranges); - } - font->info = info; - - /* zero code is frequently used. */ - if ( zero_code < 0 ) { - /* The fontenc should have the information of DefaultCh. - But we do not have such a information. - So we cannot but set 0. */ - font->zero_idx = 0; - } - else - font->zero_idx = FTRemap(face->face, - &font->mapping, zero_code); - - post = FT_Get_Sfnt_Table(face->face, ft_sfnt_post); - -#ifdef DEFAULT_VERY_LAZY - if( !( tmp_ttcap->flags & TTCAP_DISABLE_DEFAULT_VERY_LAZY ) ) - if( DEFAULT_VERY_LAZY <= 1 + info->lastRow - info->firstRow ) { - if( post ){ - tmp_ttcap->flags |= TTCAP_IS_VERY_LAZY; - } - } -#endif - /* We should always reset. */ - tmp_ttcap->flags &= ~TTCAP_DISABLE_DEFAULT_VERY_LAZY; - - if ( face->bitmap || actual_spacing == FT_CHARCELL ) - tmp_ttcap->flags &= ~TTCAP_IS_VERY_LAZY; - /* "vl=y" is available when TrueType or OpenType only */ - if ( !face->bitmap && !(FT_IS_SFNT( face->face )) ) - tmp_ttcap->flags &= ~TTCAP_IS_VERY_LAZY; - - if( post ) { - if( post->italicAngle != 0 ) - tmp_ttcap->vl_slant = -sin( (post->italicAngle/1024./5760.)*1.57079632679489661923 ); - /* fprintf(stderr,"angle=%g(%g)\n",tmp_ttcap->vl_slant,(post->italicAngle/1024./5760.)*90); */ - } - - xrc = FreeTypeOpenInstance(&font->instance, face, - FTFileName, &trans, actual_spacing, bmfmt, - tmp_ttcap, load_flags ); - return xrc; -} - -static void -adjust_min_max(xCharInfo *minc, xCharInfo *maxc, xCharInfo *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); - - 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 -ft_compute_bounds(FTFontPtr font, FontInfoPtr pinfo, FontScalablePtr vals ) -{ - FTInstancePtr instance; - int row, col; - unsigned int c; - xCharInfo minchar, maxchar, *tmpchar = NULL; - int overlap, maxOverlap; - long swidth = 0; - long total_width = 0; - int num_cols, num_chars = 0; - int flags, skip_ok = 0; - int force_c_outside ; - - instance = font->instance; - force_c_outside = instance->ttcap.flags & TTCAP_FORCE_C_OUTSIDE; - - 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; - maxOverlap = -32767; - - /* Parse all glyphs */ - num_cols = 1 + pinfo->lastCol - pinfo->firstCol; - for (row = pinfo->firstRow; row <= pinfo->lastRow; row++) { - if ( skip_ok && tmpchar ) { - if ( !force_c_outside ) { - if ( instance->ttcap.forceConstantSpacingBegin < row<<8 - && row<<8 < (instance->ttcap.forceConstantSpacingEnd & 0x0ff00) ) { - if (tmpchar->characterWidth) { - num_chars += num_cols; - swidth += ABS(tmpchar->characterWidth)*num_cols; - total_width += tmpchar->characterWidth*num_cols; - continue; - } - } - else skip_ok=0; - } - else { /* for GB18030 proportional */ - if ( instance->ttcap.forceConstantSpacingBegin < row<<8 - || row<<8 < (instance->ttcap.forceConstantSpacingEnd & 0x0ff00) ) { - if (tmpchar->characterWidth) { - num_chars += num_cols; - swidth += ABS(tmpchar->characterWidth)*num_cols; - total_width += tmpchar->characterWidth*num_cols; - continue; - } - } - else skip_ok=0; - } - } - for (col = pinfo->firstCol; col <= pinfo->lastCol; col++) { - c = row<<8|col; - flags=0; - if ( !force_c_outside ) { - if ( c <= instance->ttcap.forceConstantSpacingEnd - && instance->ttcap.forceConstantSpacingBegin <= c ) - flags|=FT_FORCE_CONSTANT_SPACING; - } - else { /* for GB18030 proportional */ - if ( c <= instance->ttcap.forceConstantSpacingEnd - || instance->ttcap.forceConstantSpacingBegin <= c ) - flags|=FT_FORCE_CONSTANT_SPACING; - } -#if 0 - fprintf(stderr, "comp_bounds: %x ->", c); -#endif - if ( skip_ok == 0 || flags == 0 ){ - tmpchar=NULL; -#if 0 - fprintf(stderr, "%x\n", c); -#endif - if( FreeTypeFontGetGlyphMetrics(c, flags, &tmpchar, font) != Successful ) - continue; - } - if ( !tmpchar ) continue; - adjust_min_max(&minchar, &maxchar, tmpchar); - overlap = tmpchar->rightSideBearing - tmpchar->characterWidth; - if (maxOverlap < overlap) - maxOverlap = overlap; - - if (!tmpchar->characterWidth) - continue; - num_chars++; - swidth += ABS(tmpchar->characterWidth); - total_width += tmpchar->characterWidth; - - if ( flags & FT_FORCE_CONSTANT_SPACING ) skip_ok=1; - } - } - -#ifndef X_ACCEPTS_NO_SUCH_CHAR - /* Check code 0 */ - if( FreeTypeInstanceGetGlyphMetrics(font->zero_idx, 0, &tmpchar, font->instance) != Successful || tmpchar == NULL) - if( FreeTypeInstanceGetGlyphMetrics(font->zero_idx, FT_GET_DUMMY, &tmpchar, font->instance) != Successful ) - tmpchar = NULL; - if ( tmpchar ) { - adjust_min_max(&minchar, &maxchar, tmpchar); - overlap = tmpchar->rightSideBearing - tmpchar->characterWidth; - if (maxOverlap < overlap) - maxOverlap = overlap; - } -#endif - - /* AVERAGE_WIDTH ... 1/10 pixel unit */ - if (num_chars > 0) { - swidth = (swidth * 10.0 + num_chars / 2.0) / num_chars; - if (total_width < 0) - swidth = -swidth; - vals->width = swidth; - } else - vals->width = 0; - - /* - if (char_width.pixel) { - maxchar.characterWidth = char_width.pixel; - minchar.characterWidth = char_width.pixel; - } - */ - - pinfo->maxbounds = maxchar; - pinfo->minbounds = minchar; - pinfo->ink_maxbounds = maxchar; - pinfo->ink_minbounds = minchar; - pinfo->maxOverlap = maxOverlap; -} - -static int -compute_new_extents( FontScalablePtr vals, double scale, double lsb, double rsb, double desc, double asc, - int *lsb_result, int *rsb_result, int *desc_result, int *asc_result ) -{ -#define TRANSFORM_POINT(matrix, x, y, dest) \ - ((dest)[0] = (matrix)[0] * (x) + (matrix)[2] * (y), \ - (dest)[1] = (matrix)[1] * (x) + (matrix)[3] * (y)) - -#define CHECK_EXTENT(lsb, rsb, desc, asc, data) \ - ((lsb) > (data)[0] ? (lsb) = (data)[0] : 0 , \ - (rsb) < (data)[0] ? (rsb) = (data)[0] : 0, \ - (-desc) > (data)[1] ? (desc) = -(data)[1] : 0 , \ - (asc) < (data)[1] ? (asc) = (data)[1] : 0) - double newlsb, newrsb, newdesc, newasc; - double point[2]; - - /* Compute new extents for this glyph */ - TRANSFORM_POINT(vals->pixel_matrix, lsb, -desc, point); - newlsb = point[0]; - newrsb = newlsb; - newdesc = -point[1]; - newasc = -newdesc; - TRANSFORM_POINT(vals->pixel_matrix, lsb, asc, point); - CHECK_EXTENT(newlsb, newrsb, newdesc, newasc, point); - TRANSFORM_POINT(vals->pixel_matrix, rsb, -desc, point); - CHECK_EXTENT(newlsb, newrsb, newdesc, newasc, point); - TRANSFORM_POINT(vals->pixel_matrix, rsb, asc, point); - CHECK_EXTENT(newlsb, newrsb, newdesc, newasc, point); - - /* ???: lsb = (int)floor(newlsb * scale); */ - *lsb_result = (int)floor(newlsb * scale + 0.5); - *rsb_result = (int)floor(newrsb * scale + 0.5); - *desc_result = (int)ceil(newdesc * scale - 0.5); - *asc_result = (int)floor(newasc * scale + 0.5); - - return 0; -#undef CHECK_EXTENT -#undef TRANSFORM_POINT -} - -static int -is_matrix_unit(FontScalablePtr vals) -{ - double base_size; - FT_Matrix m; - - base_size = hypot(vals->point_matrix[2], vals->point_matrix[3]); - - m.xx = vals->point_matrix[0] / base_size * 65536; - m.xy = vals->point_matrix[2] / base_size * 65536; - m.yx = vals->point_matrix[1] / base_size * 65536; - m.yy = vals->point_matrix[3] / base_size * 65536; - - return (m.xx == 65536) && (m.yx == 0) && - (m.xy == 0) && (m.yy == 65536); -} - -/* Do all the real work for OpenFont or FontInfo */ -/* xf->info is only accessed through info, and xf might be null */ - -static int -FreeTypeLoadXFont(char *fileName, - FontScalablePtr vals, FontPtr xf, FontInfoPtr info, - FontBitmapFormatPtr bmfmt, FontEntryPtr entry) -{ - FTFontPtr font = NULL; - FTFacePtr face = NULL; - FTInstancePtr instance; - FT_Size_Metrics *smetrics; - int xrc=Successful; - int charcell; - long rawWidth = 0, rawAverageWidth = 0; - int upm, minLsb, maxRsb, ascent, descent, width, averageWidth; - double scale, base_width, base_height; - Bool orig_is_matrix_unit, font_properties; - int face_number, ttcap_spacing; - struct TTCapInfo tmp_ttcap; - struct TTCapInfo *ins_ttcap; - FT_Int32 load_flags = FT_LOAD_DEFAULT; /* orig: FT_LOAD_RENDER | FT_LOAD_MONOCHROME */ - char *dynStrRealFileName = NULL; /* foo.ttc */ - char *dynStrFTFileName = NULL; /* :1:foo.ttc */ - char *dynStrTTCapCodeRange = NULL; - - font = calloc(1, sizeof(FTFontRec)); - if(font == NULL) { - xrc = AllocError; - goto quit; - } - - xrc = FreeTypeSetUpTTCap(fileName, vals, - &dynStrRealFileName, &dynStrFTFileName, - &tmp_ttcap, &face_number, - &load_flags, &ttcap_spacing, - &font_properties, &dynStrTTCapCodeRange); - if ( xrc != Successful ) { - goto quit; - } - - xrc = FreeTypeOpenFace(&face, dynStrFTFileName, dynStrRealFileName, face_number); - if(xrc != Successful) { - goto quit; - } - - if( is_matrix_unit(vals) ) - orig_is_matrix_unit = True; - else { - orig_is_matrix_unit = False; - /* Turn off EmbeddedBitmap when original matrix is not diagonal. */ - load_flags |= FT_LOAD_NO_BITMAP; - } - - if( face->bitmap ) load_flags &= ~FT_LOAD_NO_BITMAP; - - /* Slant control by TTCap */ - if(!face->bitmap) { - vals->pixel_matrix[2] += - vals->pixel_matrix[0] * tmp_ttcap.autoItalic; - vals->point_matrix[2] += - vals->point_matrix[0] * tmp_ttcap.autoItalic; - vals->pixel_matrix[3] += - vals->pixel_matrix[1] * tmp_ttcap.autoItalic; - vals->point_matrix[3] += - vals->point_matrix[1] * tmp_ttcap.autoItalic; - } - - base_width=hypot(vals->pixel_matrix[0], vals->pixel_matrix[1]); - base_height=hypot(vals->pixel_matrix[2], vals->pixel_matrix[3]); - if(MAX(base_width, base_height) < 1.0 ) { - xrc = BadFontName; - goto quit; - } - - xrc = FreeTypeLoadFont(font, info, face, dynStrFTFileName, vals, entry, bmfmt, - load_flags, &tmp_ttcap, dynStrTTCapCodeRange, - ttcap_spacing ); - if(xrc != Successful) { - goto quit; - } - - instance = font->instance; - smetrics = &instance->size->metrics; - ins_ttcap = &instance->ttcap; - - upm = face->face->units_per_EM; - if(upm == 0) { - /* Work around FreeType bug */ - upm = WORK_AROUND_UPM; - } - scale = 1.0 / upm; - - charcell = (instance->spacing == FT_CHARCELL); - - if( instance->charcellMetrics == NULL ) { - - /* New instance */ - - long force_c_rawWidth = 0; - int force_c_lsb,force_c_rsb,force_c_width; - double unit_x=0,unit_y=0,advance; - CharInfoPtr tmpglyph; - - /* - * CALCULATE HEADER'S METRICS - */ - - /* for OUTLINE fonts */ - if(!face->bitmap) { - int new_width; - double ratio,force_c_ratio; - double width_x=0,width_y=0; - double force_c_width_x, force_c_rsb_x, force_c_lsb_x; - double tmp_rsb,tmp_lsb,tmp_asc,tmp_des; - double max_advance_height; - tmp_asc = face->face->bbox.yMax; - tmp_des = -(face->face->bbox.yMin); - if ( tmp_asc < face->face->ascender ) tmp_asc = face->face->ascender; - if ( tmp_des < -(face->face->descender) ) tmp_des = -(face->face->descender); - tmp_lsb = face->face->bbox.xMin; - tmp_rsb = face->face->bbox.xMax; - if ( tmp_rsb < face->face->max_advance_width ) tmp_rsb = face->face->max_advance_width; - /* apply scaleBBoxWidth */ - /* we should not ...??? */ - tmp_lsb *= ins_ttcap->scaleBBoxWidth; - tmp_rsb *= ins_ttcap->scaleBBoxWidth; - /* transform and rescale */ - compute_new_extents( vals, scale, tmp_lsb, tmp_rsb, tmp_des, tmp_asc, - &minLsb, &maxRsb, &descent, &ascent ); - /* */ - /* Consider vertical layouts */ - if( 0 < face->face->max_advance_height ) - max_advance_height = face->face->max_advance_height; - else - max_advance_height = tmp_asc + tmp_des; - if( vals->pixel_matrix[1] == 0 ){ - unit_x = fabs(vals->pixel_matrix[0]); - unit_y = 0; - width_x = face->face->max_advance_width * ins_ttcap->scaleBBoxWidth * unit_x; - } - else if( vals->pixel_matrix[3] == 0 ){ - unit_y = fabs(vals->pixel_matrix[2]); - unit_x = 0; - width_x = max_advance_height * ins_ttcap->scaleBBoxHeight * unit_y; - } - else{ - unit_x = fabs(vals->pixel_matrix[0] - - vals->pixel_matrix[1]*vals->pixel_matrix[2]/vals->pixel_matrix[3]); - unit_y = fabs(vals->pixel_matrix[2] - - vals->pixel_matrix[3]*vals->pixel_matrix[0]/vals->pixel_matrix[1]); - width_x = face->face->max_advance_width * ins_ttcap->scaleBBoxWidth * unit_x; - width_y = max_advance_height * ins_ttcap->scaleBBoxHeight * unit_y; - if( width_y < width_x ){ - width_x = width_y; - unit_x = 0; - } - else{ - unit_y = 0; - } - } - /* calculate correction ratio */ - width = (int)floor( (advance = width_x * scale) + 0.5); - new_width = width; - if( ins_ttcap->flags & TTCAP_DOUBLE_STRIKE_CORRECT_B_BOX_WIDTH ) - new_width += ins_ttcap->doubleStrikeShift; - new_width += ins_ttcap->adjustBBoxWidthByPixel; - ratio = (double)new_width/width; - width = new_width; - /* force constant */ - if( unit_x != 0 ) { - force_c_width_x = face->face->max_advance_width - * ins_ttcap->force_c_scale_b_box_width * unit_x; - force_c_lsb_x = face->face->max_advance_width - * ins_ttcap->force_c_scale_lsb * unit_x; - force_c_rsb_x = face->face->max_advance_width - * ins_ttcap->force_c_scale_rsb * unit_x; - } - else { - force_c_width_x = max_advance_height - * ins_ttcap->force_c_scale_b_box_height * unit_y; - force_c_lsb_x = max_advance_height - * ins_ttcap->force_c_scale_lsb * unit_y; - force_c_rsb_x = max_advance_height - * ins_ttcap->force_c_scale_rsb * unit_y; - } - /* calculate correction ratio */ - force_c_width = (int)floor(force_c_width_x * scale + 0.5); - new_width = force_c_width; - if( ins_ttcap->flags & TTCAP_DOUBLE_STRIKE_CORRECT_B_BOX_WIDTH ) - force_c_width += ins_ttcap->doubleStrikeShift; - new_width += ins_ttcap->force_c_adjust_width_by_pixel; - force_c_ratio = (double)new_width/force_c_width; - force_c_width = new_width; - /* force_c_lsb, force_c_rsb */ - if( ins_ttcap->flags & TTCAP_FORCE_C_LSB_FLAG ) - force_c_lsb = (int)floor( force_c_lsb_x * scale + 0.5 ); - else - force_c_lsb = minLsb; - if( ins_ttcap->flags & TTCAP_FORCE_C_RSB_FLAG ) - force_c_rsb = (int)floor( force_c_rsb_x * scale + 0.5 ); - else - force_c_rsb = maxRsb; - /* calculate shift of BitmapAutoItalic - (when diagonal matrix only) */ - if( orig_is_matrix_unit == True ) { - if( ins_ttcap->autoItalic != 0 ) { - double ai; - int ai_lsb,ai_rsb,ai_total; - if( 0 < ins_ttcap->autoItalic ) ai=ins_ttcap->autoItalic; - else ai = -ins_ttcap->autoItalic; - ai_total = (int)( (ascent+descent) * ai + 0.5); - ai_rsb = (int)((double)ai_total * ascent / ( ascent + descent ) + 0.5 ); - ai_lsb = -(ai_total - ai_rsb); - if( 0 < ins_ttcap->autoItalic ) { - ins_ttcap->lsbShiftOfBitmapAutoItalic = ai_lsb; - ins_ttcap->rsbShiftOfBitmapAutoItalic = ai_rsb; - } - else { - ins_ttcap->lsbShiftOfBitmapAutoItalic = -ai_rsb; - ins_ttcap->rsbShiftOfBitmapAutoItalic = -ai_lsb; - } - } - } - /* integer adjustment by TTCap */ - if( ins_ttcap->flags & TTCAP_DOUBLE_STRIKE ) - maxRsb += ins_ttcap->doubleStrikeShift; - maxRsb += ins_ttcap->adjustRightSideBearingByPixel; - minLsb += ins_ttcap->adjustLeftSideBearingByPixel; - /* */ - if( ins_ttcap->flags & TTCAP_DOUBLE_STRIKE ) - force_c_rsb += ins_ttcap->doubleStrikeShift; - force_c_rsb += ins_ttcap->force_c_adjust_rsb_by_pixel; - force_c_lsb += ins_ttcap->force_c_adjust_lsb_by_pixel; - /* apply to rawWidth */ - averageWidth = (int)floor(10 * width_x * scale - * ratio + 0.5); - rawWidth = floor(width_x * scale - * ratio * 1000. / base_height + 0.5); - rawAverageWidth = floor(width_x * scale * ratio * 10. - * 1000. / base_height + 0.5); - force_c_rawWidth = floor(force_c_width_x * scale - * force_c_ratio * 1000. / base_height + 0.5); - /* */ - } - /* for BITMAP fonts [if(face->bitmap)] */ - else { - /* These values differ from actual when outline, - so we must use them ONLY FOR BITMAP. */ - width = (int)floor(smetrics->max_advance * ins_ttcap->scaleBBoxWidth / 64.0 + .5); - descent = -smetrics->descender / 64; - ascent = smetrics->ascender / 64; - /* force constant */ - force_c_width = (int)floor(smetrics->max_advance - * ins_ttcap->force_c_scale_b_box_width / 64.0 + .5); - /* Preserve average width for bitmap fonts */ - if(vals->width != 0) - averageWidth = (int)floor(vals->width * ins_ttcap->scaleBBoxWidth +.5); - else - averageWidth = (int)floor(10.0 * smetrics->max_advance - * ins_ttcap->scaleBBoxWidth / 64.0 + .5); - rawWidth = 0; - rawAverageWidth = 0; - force_c_rawWidth = 0; - /* We don't consider vertical layouts */ - advance = (int)floor(smetrics->max_advance / 64.0 +.5); - unit_x = vals->pixel_matrix[0]; - unit_y = 0; - /* We can use 'width' only when bitmap. - This should not be set when outline. */ - minLsb = 0; - maxRsb = width; - /* force constant */ - if( ins_ttcap->flags & TTCAP_FORCE_C_LSB_FLAG ) - force_c_lsb = (int)floor(smetrics->max_advance - * ins_ttcap->force_c_scale_lsb / 64.0 + .5); - else - force_c_lsb = minLsb; - if( ins_ttcap->flags & TTCAP_FORCE_C_RSB_FLAG ) - force_c_rsb = (int)floor(smetrics->max_advance - * ins_ttcap->force_c_scale_rsb / 64.0 + .5); - else - force_c_rsb = maxRsb; - /* calculate shift of BitmapAutoItalic */ - if( ins_ttcap->autoItalic != 0 ) { - double ai; - int ai_lsb,ai_rsb,ai_total; - if( 0 < ins_ttcap->autoItalic ) ai=ins_ttcap->autoItalic; - else ai = -ins_ttcap->autoItalic; - ai_total = (int)( (ascent+descent) * ai + 0.5); - ai_rsb = (int)((double)ai_total * ascent / ( ascent + descent ) + 0.5 ); - ai_lsb = -(ai_total - ai_rsb); - if( 0 < ins_ttcap->autoItalic ) { - ins_ttcap->lsbShiftOfBitmapAutoItalic = ai_lsb; - ins_ttcap->rsbShiftOfBitmapAutoItalic = ai_rsb; - } - else { - ins_ttcap->lsbShiftOfBitmapAutoItalic = -ai_rsb; - ins_ttcap->rsbShiftOfBitmapAutoItalic = -ai_lsb; - } - } - /* integer adjustment by TTCap */ - if( ins_ttcap->flags & TTCAP_DOUBLE_STRIKE_CORRECT_B_BOX_WIDTH ) - width += ins_ttcap->doubleStrikeShift; - if( ins_ttcap->flags & TTCAP_DOUBLE_STRIKE ) - maxRsb += ins_ttcap->doubleStrikeShift; - maxRsb += ins_ttcap->adjustRightSideBearingByPixel; - minLsb += ins_ttcap->adjustLeftSideBearingByPixel; - /* We have not carried out matrix calculation, so this is done. */ - maxRsb += ins_ttcap->rsbShiftOfBitmapAutoItalic; - minLsb += ins_ttcap->lsbShiftOfBitmapAutoItalic; - /* force constant */ - if( ins_ttcap->flags & TTCAP_DOUBLE_STRIKE ) - force_c_rsb += ins_ttcap->doubleStrikeShift; - force_c_rsb += ins_ttcap->force_c_adjust_rsb_by_pixel; - force_c_lsb += ins_ttcap->force_c_adjust_lsb_by_pixel; - force_c_rsb += ins_ttcap->rsbShiftOfBitmapAutoItalic; - force_c_lsb += ins_ttcap->lsbShiftOfBitmapAutoItalic; - } - - /* SET CALCULATED VALUES TO INSTANCE */ - - /* Set actual height and cosine */ - instance->pixel_size = base_height; - instance->advance = advance; - if ( unit_x != 0 ){ - instance->pixel_width_unit_x = unit_x/base_height; - instance->pixel_width_unit_y = 0; - } - else{ - instance->pixel_width_unit_x = 0; - instance->pixel_width_unit_y = unit_y/base_height; - } - - /* header's metrics */ - instance->charcellMetrics = malloc(sizeof(xCharInfo)); - if(instance->charcellMetrics == NULL) { - xrc = AllocError; - goto quit; - } - instance->charcellMetrics->ascent = ascent; - instance->charcellMetrics->descent = descent; - instance->charcellMetrics->attributes = rawWidth; - instance->charcellMetrics->rightSideBearing = maxRsb; - instance->charcellMetrics->leftSideBearing = minLsb; - instance->charcellMetrics->characterWidth = width; - instance->averageWidth = averageWidth; - instance->rawAverageWidth = rawAverageWidth; - - /* Check code 0 */ - if( FreeTypeInstanceGetGlyph(font->zero_idx, 0, &tmpglyph, font->instance) != Successful - || tmpglyph == NULL) - if( FreeTypeInstanceGetGlyph(font->zero_idx, FT_GET_DUMMY, &tmpglyph, font->instance) - != Successful ) - tmpglyph = NULL; - if ( !tmpglyph ) { - xrc = AllocError; - goto quit; - } - - /* FORCE CONSTANT METRICS */ - if( 0 <= ins_ttcap->forceConstantSpacingEnd ) { - xCharInfo *tmpchar = NULL; - int c = ins_ttcap->force_c_representative_metrics_char_code; - /* header's metrics */ - if( instance->forceConstantMetrics == NULL ){ - instance->forceConstantMetrics = malloc(sizeof(xCharInfo)); - if(instance->forceConstantMetrics == NULL) { - xrc = AllocError; - goto quit; - } - } - /* Get Representative Metrics */ - if ( 0 <= c ) { - if( FreeTypeFontGetGlyphMetrics(c, 0, &tmpchar, font) != Successful ) - tmpchar = NULL; - } - if ( tmpchar && 0 < tmpchar->characterWidth ) { - instance->forceConstantMetrics->leftSideBearing = tmpchar->leftSideBearing; - instance->forceConstantMetrics->rightSideBearing = tmpchar->rightSideBearing; - instance->forceConstantMetrics->characterWidth = tmpchar->characterWidth; - instance->forceConstantMetrics->ascent = tmpchar->ascent; - instance->forceConstantMetrics->descent = tmpchar->descent; - instance->forceConstantMetrics->attributes = tmpchar->attributes; - } - else { - instance->forceConstantMetrics->leftSideBearing = force_c_lsb; - instance->forceConstantMetrics->rightSideBearing = force_c_rsb; - instance->forceConstantMetrics->characterWidth = force_c_width; - instance->forceConstantMetrics->ascent = ascent; - instance->forceConstantMetrics->descent = descent; - instance->forceConstantMetrics->attributes = force_c_rawWidth; - } - /* Check code 0 */ - if( FreeTypeInstanceGetGlyph(font->zero_idx, FT_FORCE_CONSTANT_SPACING, - &tmpglyph, font->instance) != Successful - || tmpglyph == NULL) - if( FreeTypeInstanceGetGlyph(font->zero_idx, FT_FORCE_CONSTANT_SPACING | FT_GET_DUMMY, - &tmpglyph, font->instance) - != Successful ) - tmpglyph = NULL; - if ( !tmpglyph ) { - xrc = AllocError; - goto quit; - } - } - } - else{ - - /* - * CACHED VALUES - */ - - width = instance->charcellMetrics->characterWidth; - ascent = instance->charcellMetrics->ascent; - descent = instance->charcellMetrics->descent; - rawWidth = instance->charcellMetrics->attributes; - maxRsb = instance->charcellMetrics->rightSideBearing; - minLsb = instance->charcellMetrics->leftSideBearing; - averageWidth = instance->averageWidth; - rawAverageWidth = instance->rawAverageWidth; - - } - - /* - * SET maxbounds, minbounds ... - */ - - if( !charcell ) { /* NOT CHARCELL */ - if( info ){ - /* - Calculate all glyphs' metrics. - maxbounds.ascent and maxbounds.descent are quite important values - for XAA. If ascent/descent of each glyph exceeds - maxbounds.ascent/maxbounds.descent, XAA causes SERVER CRASH. - Therefore, THIS MUST BE DONE. - */ - ft_compute_bounds(font,info,vals); - } - } - else{ /* CHARCELL */ - - /* - * SET CALCULATED OR CACHED VARIABLES - */ - - vals->width = averageWidth; - - if( info ){ - - info->maxbounds.leftSideBearing = minLsb; - info->maxbounds.rightSideBearing = maxRsb; - info->maxbounds.characterWidth = width; - info->maxbounds.ascent = ascent; - info->maxbounds.descent = descent; - info->maxbounds.attributes = - (unsigned short)(short)rawWidth; - - info->minbounds = info->maxbounds; - } - } - - /* set info */ - - if( info ){ - /* - info->fontAscent = ascent; - info->fontDescent = descent; - */ - info->fontAscent = info->maxbounds.ascent; - info->fontDescent = info->maxbounds.descent; - /* Glyph metrics are accurate */ - info->inkMetrics=1; - - memcpy((char *)&info->ink_maxbounds, - (char *)&info->maxbounds, sizeof(xCharInfo)); - memcpy((char *)&info->ink_minbounds, - (char *)&info->minbounds, sizeof(xCharInfo)); - - /* XXX - hack */ - info->defaultCh=0; - - /* Set the pInfo flags */ - /* Properties set by FontComputeInfoAccelerators: - pInfo->noOverlap; - pInfo->terminalFont; - pInfo->constantMetrics; - pInfo->constantWidth; - pInfo->inkInside; - */ - /* from lib/font/util/fontaccel.c */ - FontComputeInfoAccelerators(info); - } - - if(xf) - xf->fontPrivate = (void*)font; - - if(info) { - xrc = FreeTypeAddProperties(font, vals, info, entry->name.name, - rawAverageWidth, font_properties); - if (xrc != Successful) { - goto quit; - } - } - - quit: - if ( dynStrTTCapCodeRange ) free(dynStrTTCapCodeRange); - if ( dynStrFTFileName ) free(dynStrFTFileName); - if ( dynStrRealFileName ) free(dynStrRealFileName); - if ( xrc != Successful ) { - if( font ){ - if( face && font->instance == NULL ) FreeTypeFreeFace(face); - FreeTypeFreeFont(font); - } - } - return xrc; -} - -/* Routines used by X11 to get info and glyphs from the font. */ - -static int -FreeTypeGetMetrics(FontPtr pFont, unsigned long count, unsigned char *chars, - FontEncoding charEncoding, unsigned long *metricCount, - xCharInfo **metrics) -{ - unsigned int code = 0; - int flags = 0; - FTFontPtr tf; - struct TTCapInfo *ttcap; - xCharInfo **mp, *m; - - /* MUMBLE1("Get metrics for %ld characters\n", count);*/ - - tf = (FTFontPtr)pFont->fontPrivate; - ttcap = &tf->instance->ttcap; - mp = metrics; - - while (count-- > 0) { - switch (charEncoding) { - case Linear8Bit: - case TwoD8Bit: - code = *chars++; - break; - case Linear16Bit: - case TwoD16Bit: - code = (*chars++ << 8); - code |= *chars++; - /* */ - if ( !(ttcap->flags & TTCAP_FORCE_C_OUTSIDE) ) { - if ( (int)code <= ttcap->forceConstantSpacingEnd - && ttcap->forceConstantSpacingBegin <= (int)code ) - flags|=FT_FORCE_CONSTANT_SPACING; - else flags=0; - } - else { /* for GB18030 proportional */ - if ( (int)code <= ttcap->forceConstantSpacingEnd - || ttcap->forceConstantSpacingBegin <= (int)code ) - flags|=FT_FORCE_CONSTANT_SPACING; - else flags=0; - } - break; - } - - if(FreeTypeFontGetGlyphMetrics(code, flags, &m, tf) == Successful && m!=NULL) { - *mp++ = m; - } -#ifdef X_ACCEPTS_NO_SUCH_CHAR - else *mp++ = &noSuchChar.metrics; -#endif - } - - *metricCount = mp - metrics; - return Successful; -} - -static int -FreeTypeGetGlyphs(FontPtr pFont, unsigned long count, unsigned char *chars, - FontEncoding charEncoding, unsigned long *glyphCount, - CharInfoPtr *glyphs) -{ - unsigned int code = 0; - int flags = 0; - FTFontPtr tf; - CharInfoPtr *gp; - CharInfoPtr g; - struct TTCapInfo *ttcap; - - tf = (FTFontPtr)pFont->fontPrivate; - ttcap = &tf->instance->ttcap; - gp = glyphs; - - while (count-- > 0) { - switch (charEncoding) { - case Linear8Bit: case TwoD8Bit: - code = *chars++; - break; - case Linear16Bit: case TwoD16Bit: - code = *chars++ << 8; - code |= *chars++; - /* */ - if ( !(ttcap->flags & TTCAP_FORCE_C_OUTSIDE) ) { - if ( (int)code <= ttcap->forceConstantSpacingEnd - && ttcap->forceConstantSpacingBegin <= (int)code ) - flags|=FT_FORCE_CONSTANT_SPACING; - else flags=0; - } - else { /* for GB18030 proportional */ - if ( (int)code <= ttcap->forceConstantSpacingEnd - || ttcap->forceConstantSpacingBegin <= (int)code ) - flags|=FT_FORCE_CONSTANT_SPACING; - else flags=0; - } - break; - } - - if(FreeTypeFontGetGlyph(code, flags, &g, tf) == Successful && g!=NULL) { - *gp++ = g; - } -#ifdef X_ACCEPTS_NO_SUCH_CHAR - else { -#ifdef XAA_ACCEPTS_NULL_BITS - *gp++ = &noSuchChar; -#else - if ( tf->dummy_char.bits ) { - *gp++ = &tf->dummy_char; - } - else { - char *raster = NULL; - int wd_actual, ht_actual, wd, ht, bpr; - wd_actual = tf->info->maxbounds.rightSideBearing - tf->info->maxbounds.leftSideBearing; - ht_actual = tf->info->maxbounds.ascent + tf->info->maxbounds.descent; - if(wd_actual <= 0) wd = 1; - else wd=wd_actual; - if(ht_actual <= 0) ht = 1; - else ht=ht_actual; - bpr = (((wd + (tf->instance->bmfmt.glyph<<3) - 1) >> 3) & - -tf->instance->bmfmt.glyph); - raster = calloc(1, ht * bpr); - if(raster) { - tf->dummy_char.bits = raster; - *gp++ = &tf->dummy_char; - } - } -#endif - } -#endif - } - - *glyphCount = gp - glyphs; - return Successful; -} - -static int -FreeTypeSetUpFont(FontPathElementPtr fpe, FontPtr xf, FontInfoPtr info, - fsBitmapFormat format, fsBitmapFormatMask fmask, - FontBitmapFormatPtr bmfmt) -{ - int xrc; - int image; - - /* Get the default bitmap format information for this X installation. - Also update it for the client if running in the font server. */ - FontDefaultFormat(&bmfmt->bit, &bmfmt->byte, &bmfmt->glyph, &bmfmt->scan); - if ((xrc = CheckFSFormat(format, fmask, &bmfmt->bit, &bmfmt->byte, - &bmfmt->scan, &bmfmt->glyph, - &image)) != Successful) { - MUMBLE1("Aborting after checking FS format: %d\n", xrc); - return xrc; - } - - if(xf) { - xf->refcnt = 0; - xf->bit = bmfmt->bit; - xf->byte = bmfmt->byte; - xf->glyph = bmfmt->glyph; - xf->scan = bmfmt->scan; - xf->format = format; - xf->get_glyphs = FreeTypeGetGlyphs; - xf->get_metrics = FreeTypeGetMetrics; - xf->unload_font = FreeTypeUnloadXFont; - xf->unload_glyphs = 0; - xf->fpe = fpe; - xf->svrPrivate = 0; - xf->fontPrivate = 0; /* we'll set it later */ - xf->fpePrivate = 0; - } - - info->defaultCh = 0; - info->noOverlap = 0; /* not updated */ - info->terminalFont = 0; /* not updated */ - info->constantMetrics = 0; /* we'll set it later */ - info->constantWidth = 0; /* we'll set it later */ - info->inkInside = 1; - info->inkMetrics = 1; - info->allExist=0; /* not updated */ - info->drawDirection = LeftToRight; /* we'll set it later */ - info->cachable = 1; /* we don't do licensing */ - info->anamorphic = 0; /* can hinting lead to anamorphic scaling? */ - info->maxOverlap = 0; /* we'll set it later. */ - info->pad = 0; /* ??? */ - return Successful; -} - -/* Functions exported by the backend */ - -static int -FreeTypeOpenScalable(FontPathElementPtr fpe, FontPtr *ppFont, int flags, - FontEntryPtr entry, char *fileName, FontScalablePtr vals, - fsBitmapFormat format, fsBitmapFormatMask fmask, - FontPtr non_cachable_font) -{ - int xrc; - FontPtr xf; - FontBitmapFormatRec bmfmt; - - MUMBLE1("Open Scalable %s, XLFD=",fileName); -#ifdef DEBUG_TRUETYPE - fwrite(entry->name.name, entry->name.length, 1, stdout); -#endif - MUMBLE("\n"); - - xf = CreateFontRec(); - if (xf == NULL) - return AllocError; - - xrc = FreeTypeSetUpFont(fpe, xf, &xf->info, format, fmask, &bmfmt); - if(xrc != Successful) { - DestroyFontRec(xf); - return xrc; - } - xrc = FreeTypeLoadXFont(fileName, vals, xf, &xf->info, &bmfmt, entry); - if(xrc != Successful) { - MUMBLE1("Error during load: %d\n",xrc); - DestroyFontRec(xf); - return xrc; - } - - *ppFont = xf; - - return xrc; -} - -/* Routine to get requested font info. */ - -static int -FreeTypeGetInfoScalable(FontPathElementPtr fpe, FontInfoPtr info, - FontEntryPtr entry, FontNamePtr fontName, - char *fileName, FontScalablePtr vals) -{ - int xrc; - FontBitmapFormatRec bmfmt; - - MUMBLE("Get info, XLFD= "); -#ifdef DEBUG_TRUETYPE - fwrite(entry->name.name, entry->name.length, 1, stdout); -#endif - MUMBLE("\n"); - - xrc = FreeTypeSetUpFont(fpe, 0, info, 0, 0, &bmfmt); - if(xrc != Successful) { - return xrc; - } - - bmfmt.glyph <<= 3; - - xrc = FreeTypeLoadXFont(fileName, vals, 0, info, &bmfmt, entry); - if(xrc != Successful) { - MUMBLE1("Error during load: %d\n", xrc); - return xrc; - } - - return Successful; -} - -/* Renderer registration. */ - -/* Set the capabilities of this renderer. */ -#define CAPABILITIES (CAP_CHARSUBSETTING | CAP_MATRIX) - -/* Set it up so file names with either upper or lower case can be - loaded. We don't support compressed fonts. */ -static FontRendererRec renderers[] = { - {".ttf", 4, 0, FreeTypeOpenScalable, 0, - FreeTypeGetInfoScalable, 0, CAPABILITIES}, - {".ttc", 4, 0, FreeTypeOpenScalable, 0, - FreeTypeGetInfoScalable, 0, CAPABILITIES}, - {".otf", 4, 0, FreeTypeOpenScalable, 0, - FreeTypeGetInfoScalable, 0, CAPABILITIES}, - {".otc", 4, 0, FreeTypeOpenScalable, 0, - FreeTypeGetInfoScalable, 0, CAPABILITIES}, - {".pfa", 4, 0, FreeTypeOpenScalable, 0, - FreeTypeGetInfoScalable, 0, CAPABILITIES}, - {".pfb", 4, 0, FreeTypeOpenScalable, 0, - FreeTypeGetInfoScalable, 0, CAPABILITIES}, -}; -static int num_renderers = sizeof(renderers) / sizeof(renderers[0]); - -static FontRendererRec alt_renderers[] = { - {".bdf", 4, 0, FreeTypeOpenScalable, 0, - FreeTypeGetInfoScalable, 0, CAPABILITIES}, - {".pcf", 4, 0, FreeTypeOpenScalable, 0, - FreeTypeGetInfoScalable, 0, CAPABILITIES}, -}; - -static int num_alt_renderers = -sizeof(alt_renderers) / sizeof(alt_renderers[0]); - - -void -FreeTypeRegisterFontFileFunctions(void) -{ - int i; - - for (i = 0; i < num_renderers; i++) - FontFileRegisterRenderer(&renderers[i]); - - for (i = 0; i < num_alt_renderers; i++) - FontFilePriorityRegisterRenderer(&alt_renderers[i], -10); -} +/*
+Copyright (c) 1997 by Mark Leisher
+Copyright (c) 1998-2003 by Juliusz Chroboczek
+Copyright (c) 1998 Go Watanabe, All rights reserved.
+Copyright (c) 1998 Kazushi (Jam) Marukawa, All rights reserved.
+Copyright (c) 1998 Takuya SHIOZAKI, All rights reserved.
+Copyright (c) 1998 X-TrueType Server Project, All rights reserved.
+Copyright (c) 2003-2004 After X-TT Project, All rights reserved.
+
+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.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <X11/fonts/fontmisc.h>
+
+#include <string.h>
+#include <math.h>
+#include <ctype.h>
+#include <unistd.h>
+
+#include <X11/fonts/fntfilst.h>
+#include <X11/fonts/fontutil.h>
+#include <X11/fonts/FSproto.h>
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include FT_SIZES_H
+#include FT_TRUETYPE_IDS_H
+#include FT_TRUETYPE_TABLES_H
+#include FT_TYPE1_TABLES_H
+#include FT_XFREE86_H
+#include FT_BBOX_H
+#include FT_TRUETYPE_TAGS_H
+/*
+ * If you want to use FT_Outline_Get_CBox instead of
+ * FT_Outline_Get_BBox, define here.
+ */
+/* #define USE_GET_CBOX */
+#ifdef USE_GET_CBOX
+#include FT_OUTLINE_H
+#endif
+
+#include <X11/fonts/fontenc.h>
+#include "ft.h"
+#include "ftfuncs.h"
+#include "xttcap.h"
+
+/* Work around FreeType bug */
+#define WORK_AROUND_UPM 2048
+
+#ifndef True
+#define True (-1)
+#endif /* True */
+#ifndef False
+#define False (0)
+#endif /* False */
+
+#define FLOOR64(x) ((x) & -64)
+#define CEIL64(x) (((x) + 64 - 1) & -64)
+
+/*
+ * If you want very lazy method(vl=y) AS DEFAULT when
+ * handling large charset, define here.
+ */
+/* #define DEFAULT_VERY_LAZY 1 */ /* Always */
+#define DEFAULT_VERY_LAZY 2 /* Multi-byte only */
+/* #define DEFAULT_VERY_LAZY 256 */ /* Unicode only */
+
+/* Does the X accept noSuchChar? */
+#define X_ACCEPTS_NO_SUCH_CHAR
+/* Does the XAA accept NULL noSuchChar.bits?(dangerous) */
+/* #define XAA_ACCEPTS_NULL_BITS */
+
+#ifdef X_ACCEPTS_NO_SUCH_CHAR
+static CharInfoRec noSuchChar = { /* metrics */{0,0,0,0,0,0},
+ /* bits */ NULL };
+#endif
+
+/* The propery names for all the XLFD properties. */
+
+static char *xlfd_props[] = {
+ "FOUNDRY",
+ "FAMILY_NAME",
+ "WEIGHT_NAME",
+ "SLANT",
+ "SETWIDTH_NAME",
+ "ADD_STYLE_NAME",
+ "PIXEL_SIZE",
+ "POINT_SIZE",
+ "RESOLUTION_X",
+ "RESOLUTION_Y",
+ "SPACING",
+ "AVERAGE_WIDTH",
+ "CHARSET_REGISTRY",
+ "CHARSET_ENCODING",
+};
+
+
+/* read 2-byte value from a SFNT table */
+static FT_UShort
+sfnt_get_ushort( FT_Face face,
+ FT_ULong table_tag,
+ FT_ULong table_offset )
+{
+ FT_Byte buff[2];
+ FT_ULong len = sizeof(buff);
+ FT_UShort result = 0;
+
+ if ( !FT_Load_Sfnt_Table( face, table_tag, table_offset, buff, &len ) );
+ result = (FT_UShort)( (buff[0] << 8) | buff[1] );
+
+ return result;
+}
+
+#define sfnt_get_short(f,t,o) ((FT_Short)sfnt_get_ushort((f),(t),(o)))
+
+#ifdef _MSC_VER
+#define hypot _hypot
+#endif
+
+static int ftypeInitP = 0; /* is the engine initialised? */
+FT_Library ftypeLibrary;
+
+static FTFacePtr faceTable[NUMFACEBUCKETS];
+
+static unsigned
+hash(char *string)
+{
+ int i;
+ unsigned u = 0;
+ for(i = 0; string[i] != '\0'; i++)
+ u = (u<<5) + (u >> (NUMFACEBUCKETS - 5)) + (unsigned char)string[i];
+ return u;
+}
+
+static int
+ifloor(int x, int y)
+{
+ if(x >= 0)
+ return x/y;
+ else
+ return x/y - 1;
+}
+
+static int
+iceil(int x, int y)
+{
+ return ifloor(x + y - 1, y);
+}
+
+static int
+FreeTypeOpenFace(FTFacePtr *facep, char *FTFileName, char *realFileName, int faceNumber)
+{
+ FT_Error ftrc;
+ int bucket;
+ FTFacePtr face, otherFace;
+
+ if (!ftypeInitP) {
+ ftrc = FT_Init_FreeType(&ftypeLibrary);
+ if (ftrc != 0) {
+ ErrorF("FreeType: error initializing ftypeEngine: %d\n", ftrc);
+ return AllocError;
+ }
+ ftypeInitP = 1;
+ }
+
+ /* Try to find a matching face in the hashtable */
+ bucket = hash(FTFileName)%NUMFACEBUCKETS;
+ otherFace = faceTable[bucket];
+ while(otherFace) {
+ if( strcmp(otherFace->filename, FTFileName) == 0 ) break;
+ otherFace = otherFace->next;
+ }
+ if(otherFace) {
+ MUMBLE("Returning cached face: %s\n", otherFace->filename);
+ *facep = otherFace;
+ return Successful;
+ }
+
+ /* No cached match; need to make a new one */
+ face = calloc(1, sizeof(FTFaceRec));
+ if (face == NULL) {
+ return AllocError;
+ }
+
+ face->filename = strdup(FTFileName);
+ if (face->filename == NULL) {
+ free(face);
+ return AllocError;
+ }
+
+ ftrc = FT_New_Face(ftypeLibrary, realFileName, faceNumber, &face->face);
+ if(ftrc != 0) {
+ ErrorF("FreeType: couldn't open face %s: %d\n", FTFileName, ftrc);
+ free(face->filename);
+ free(face);
+ return BadFontName;
+ }
+
+ face->bitmap = ((face->face->face_flags & FT_FACE_FLAG_SCALABLE) == 0);
+ if(!face->bitmap) {
+ TT_MaxProfile *maxp;
+ maxp = FT_Get_Sfnt_Table(face->face, ft_sfnt_maxp);
+ if(maxp && maxp->maxContours == 0)
+ face->bitmap = 1;
+ }
+
+ face->num_hmetrics = (FT_UInt) sfnt_get_ushort( face->face,
+ TTAG_hhea, 34 );
+
+ /* Insert face in hashtable and return it */
+ face->next = faceTable[bucket];
+ faceTable[bucket] = face;
+ *facep = face;
+ return Successful;
+}
+
+static void
+FreeTypeFreeFace(FTFacePtr face)
+{
+ int bucket;
+ FTFacePtr otherFace;
+
+ if(!face->instances) {
+ bucket = hash(face->filename) % NUMFACEBUCKETS;
+ if(faceTable[bucket] == face)
+ faceTable[bucket] = face->next;
+ else {
+ otherFace = faceTable[bucket];
+ while(otherFace) {
+ if(otherFace->next == face)
+ break;
+ otherFace = otherFace->next;
+ }
+ if(otherFace && otherFace->next)
+ otherFace->next = otherFace->next->next;
+ else
+ ErrorF("FreeType: freeing unknown face\n");
+ }
+ MUMBLE("Closing face: %s\n", face->filename);
+ FT_Done_Face(face->face);
+ free(face->filename);
+ free(face);
+ }
+}
+
+static int
+TransEqual(FTNormalisedTransformationPtr t1, FTNormalisedTransformationPtr t2)
+{
+ if(t1->scale != t2->scale)
+ return 0;
+ else if(t1->xres != t2->xres || t1->yres != t2->yres)
+ return 0;
+ else if(t1->nonIdentity != t2->nonIdentity)
+ return 0;
+ else if(t1->nonIdentity && t2->nonIdentity) {
+ return
+ t1->matrix.xx == t2->matrix.xx &&
+ t1->matrix.yx == t2->matrix.yx &&
+ t1->matrix.yy == t2->matrix.yy &&
+ t1->matrix.xy == t2->matrix.xy;
+ } else
+ return 1;
+}
+
+static int
+BitmapFormatEqual(FontBitmapFormatPtr f1, FontBitmapFormatPtr f2)
+{
+ return
+ f1->bit == f2->bit &&
+ f1->byte == f2->byte &&
+ f1->glyph == f2->glyph;
+}
+
+static int
+TTCapEqual(struct TTCapInfo *t1, struct TTCapInfo *t2)
+{
+ return
+ t1->autoItalic == t2->autoItalic &&
+ t1->scaleWidth == t2->scaleWidth &&
+ t1->scaleBBoxWidth == t2->scaleBBoxWidth &&
+ t1->scaleBBoxHeight == t2->scaleBBoxHeight &&
+ t1->doubleStrikeShift == t2->doubleStrikeShift &&
+ t1->adjustBBoxWidthByPixel == t2->adjustBBoxWidthByPixel &&
+ t1->adjustLeftSideBearingByPixel == t2->adjustLeftSideBearingByPixel &&
+ t1->adjustRightSideBearingByPixel == t2->adjustRightSideBearingByPixel &&
+ t1->flags == t2->flags &&
+ t1->scaleBitmap == t2->scaleBitmap &&
+ /*
+ If we use forceConstantSpacing,
+ we *MUST* allocate new instance.
+ */
+ t1->forceConstantSpacingEnd < 0 &&
+ t2->forceConstantSpacingEnd < 0;
+}
+
+static int
+FTInstanceMatch(FTInstancePtr instance,
+ char *FTFileName, FTNormalisedTransformationPtr trans,
+ int spacing, FontBitmapFormatPtr bmfmt,
+ struct TTCapInfo *tmp_ttcap, FT_Int32 load_flags)
+{
+ if(strcmp(instance->face->filename, FTFileName) != 0) {
+ return 0;
+ } else if(!TransEqual(&instance->transformation, trans)) {
+ return 0;
+ } else if( spacing != instance->spacing ) {
+ return 0;
+ } else if( load_flags != instance->load_flags ) {
+ return 0;
+ } else if(!BitmapFormatEqual(&instance->bmfmt, bmfmt)) {
+ return 0;
+ } else if(!TTCapEqual(&instance->ttcap, tmp_ttcap)) {
+ return 0;
+ } else {
+ return 1;
+ }
+}
+
+static int
+FreeTypeActivateInstance(FTInstancePtr instance)
+{
+ FT_Error ftrc;
+ if(instance->face->active_instance == instance)
+ return Successful;
+
+ ftrc = FT_Activate_Size(instance->size);
+ if(ftrc != 0) {
+ instance->face->active_instance = NULL;
+ ErrorF("FreeType: couldn't activate instance: %d\n", ftrc);
+ return FTtoXReturnCode(ftrc);
+ }
+ FT_Set_Transform(instance->face->face,
+ instance->transformation.nonIdentity ?
+ &instance->transformation.matrix : 0,
+ 0);
+
+ instance->face->active_instance = instance;
+ return Successful;
+}
+
+static int
+FTFindSize(FT_Face face, FTNormalisedTransformationPtr trans,
+ int *x_return, int *y_return)
+{
+ int tx, ty, x, y;
+ int i, j;
+ int d, dd;
+
+ if(trans->nonIdentity)
+ return BadFontName;
+
+ tx = (int)(trans->scale * trans->xres / 72.0 + 0.5);
+ ty = (int)(trans->scale * trans->yres / 72.0 + 0.5);
+
+ d = 100;
+ j = -1;
+ for(i = 0; i < face->num_fixed_sizes; i++) {
+ x = face->available_sizes[i].width;
+ y = face->available_sizes[i].height;
+ if(ABS(x - tx) <= 1 && ABS(y - ty) <= 1) {
+ dd = ABS(x - tx) * ABS(x - tx) + ABS(y - ty) * ABS(y - ty);
+ if(dd < d) {
+ j = i;
+ d = dd;
+ }
+ }
+ }
+ if(j < 0)
+ return BadFontName;
+
+ *x_return = face->available_sizes[j].width;
+ *y_return = face->available_sizes[j].height;
+ return Successful;
+}
+
+static int
+FreeTypeOpenInstance(FTInstancePtr *instance_return, FTFacePtr face,
+ char *FTFileName, FTNormalisedTransformationPtr trans,
+ int spacing, FontBitmapFormatPtr bmfmt,
+ struct TTCapInfo *tmp_ttcap, FT_Int32 load_flags)
+{
+ FT_Error ftrc;
+ int xrc;
+ FTInstancePtr instance, otherInstance;
+
+ /* Search for a matching instance */
+ for(otherInstance = face->instances;
+ otherInstance;
+ otherInstance = otherInstance->next) {
+ if(FTInstanceMatch(otherInstance, FTFileName, trans, spacing, bmfmt,
+ tmp_ttcap, load_flags)) break;
+ }
+ if(otherInstance) {
+ MUMBLE("Returning cached instance\n");
+ otherInstance->refcount++;
+ *instance_return = otherInstance;
+ return Successful;
+ }
+
+ /* None matching found */
+ instance = malloc(sizeof(FTInstanceRec));
+ if(instance == NULL) {
+ return AllocError;
+ }
+
+ instance->refcount = 1;
+ instance->face = face;
+
+ instance->load_flags = load_flags;
+ instance->spacing = spacing; /* Actual spacing */
+ instance->pixel_size =0;
+ instance->pixel_width_unit_x =0;
+ instance->pixel_width_unit_y =0;
+ instance->charcellMetrics = NULL;
+ instance->averageWidth = 0;
+ instance->rawAverageWidth = 0;
+ instance->forceConstantMetrics = NULL;
+
+ instance->transformation = *trans;
+ instance->bmfmt = *bmfmt;
+ instance->glyphs = NULL;
+ instance->available = NULL;
+
+ if( 0 <= tmp_ttcap->forceConstantSpacingEnd )
+ instance->nglyphs = 2 * instance->face->face->num_glyphs;
+ else
+ instance->nglyphs = instance->face->face->num_glyphs;
+
+ /* Store the TTCap info. */
+ memcpy((char*)&instance->ttcap, (char*)tmp_ttcap,
+ sizeof(struct TTCapInfo));
+
+ ftrc = FT_New_Size(instance->face->face, &instance->size);
+ if(ftrc != 0) {
+ ErrorF("FreeType: couldn't create size object: %d\n", ftrc);
+ free(instance);
+ return FTtoXReturnCode(ftrc);
+ }
+ FreeTypeActivateInstance(instance);
+ if(!face->bitmap) {
+ ftrc = FT_Set_Char_Size(instance->face->face,
+ (int)(trans->scale*(1<<6) + 0.5),
+ (int)(trans->scale*(1<<6) + 0.5),
+ trans->xres, trans->yres);
+ } else {
+ int xsize, ysize;
+ xrc = FTFindSize(face->face, trans, &xsize, &ysize);
+ if(xrc != Successful) {
+ free(instance);
+ return xrc;
+ }
+ ftrc = FT_Set_Pixel_Sizes(instance->face->face, xsize, ysize);
+ }
+ if(ftrc != 0) {
+ FT_Done_Size(instance->size);
+ free(instance);
+ return FTtoXReturnCode(ftrc);
+ }
+
+ if( FT_IS_SFNT( face->face ) ) {
+#if 1
+ FT_F26Dot6 tt_char_width, tt_char_height, tt_dim_x, tt_dim_y;
+ FT_UInt nn;
+
+ instance->strike_index=0xFFFFU;
+
+ tt_char_width = (FT_F26Dot6)(trans->scale*(1<<6) + 0.5);
+ tt_char_height = (FT_F26Dot6)(trans->scale*(1<<6) + 0.5);
+
+ tt_dim_x = FLOOR64( ( tt_char_width * trans->xres + 36 ) / 72 + 32 );
+ tt_dim_y = FLOOR64( ( tt_char_height * trans->yres + 36 ) / 72 + 32 );
+
+ if ( tt_dim_x && !tt_dim_y )
+ tt_dim_y = tt_dim_x;
+ else if ( !tt_dim_x && tt_dim_y )
+ tt_dim_x = tt_dim_y;
+
+ for ( nn = 0; nn < face->face->num_fixed_sizes; nn++ )
+ {
+ FT_Bitmap_Size* sz = &face->face->available_sizes[nn];
+
+ if ( tt_dim_x == FLOOR64(sz->x_ppem + 32) && tt_dim_y == FLOOR64(sz->y_ppem + 32) )
+ {
+ instance->strike_index = nn;
+ break;
+ }
+ }
+#else
+ /* See Set_Char_Sizes() in ttdriver.c */
+ FT_Error err;
+ TT_Face tt_face;
+ FT_Long tt_dim_x, tt_dim_y;
+ FT_UShort tt_x_ppem, tt_y_ppem;
+ FT_F26Dot6 tt_char_width, tt_char_height;
+ SFNT_Service sfnt;
+ tt_face=(TT_Face)face->face;
+ tt_char_width = (int)(trans->scale*(1<<6) + 0.5);
+ tt_char_height = (int)(trans->scale*(1<<6) + 0.5);
+ if ( ( tt_face->header.Flags & 8 ) != 0 ) {
+ tt_dim_x = ( ( tt_char_width * trans->xres + (36+32*72) ) / 72 ) & -64;
+ tt_dim_y = ( ( tt_char_height * trans->yres + (36+32*72) ) / 72 ) & -64;
+ }
+ else{
+ tt_dim_x = ( ( tt_char_width * trans->xres + 36 ) / 72 );
+ tt_dim_y = ( ( tt_char_height * trans->yres + 36 ) / 72 );
+ }
+ tt_x_ppem = (FT_UShort)( tt_dim_x >> 6 );
+ tt_y_ppem = (FT_UShort)( tt_dim_y >> 6 );
+ /* See Reset_SBit_Size() in ttobjs.c */
+ sfnt = (SFNT_Service)tt_face->sfnt;
+ err = sfnt->set_sbit_strike(tt_face,tt_x_ppem,tt_y_ppem,&instance->strike_index);
+ if ( err ) instance->strike_index=0xFFFFU;
+#endif
+ }
+
+ /* maintain a linked list of instances */
+ instance->next = instance->face->instances;
+ instance->face->instances = instance;
+
+ *instance_return = instance;
+ return Successful;
+}
+
+static void
+FreeTypeFreeInstance(FTInstancePtr instance)
+{
+ FTInstancePtr otherInstance;
+
+ if( instance == NULL ) return;
+
+ if(instance->face->active_instance == instance)
+ instance->face->active_instance = NULL;
+ instance->refcount--;
+ if(instance->refcount <= 0) {
+ int i,j;
+
+ if(instance->face->instances == instance)
+ instance->face->instances = instance->next;
+ else {
+ for(otherInstance = instance->face->instances;
+ otherInstance;
+ otherInstance = otherInstance->next)
+ if(otherInstance->next == instance) {
+ otherInstance->next = instance->next;
+ break;
+ }
+ }
+
+ FT_Done_Size(instance->size);
+ FreeTypeFreeFace(instance->face);
+
+ if(instance->charcellMetrics) {
+ free(instance->charcellMetrics);
+ }
+ if(instance->forceConstantMetrics) {
+ free(instance->forceConstantMetrics);
+ }
+ if(instance->glyphs) {
+ for(i = 0; i < iceil(instance->nglyphs, FONTSEGMENTSIZE); i++) {
+ if(instance->glyphs[i]) {
+ for(j = 0; j < FONTSEGMENTSIZE; j++) {
+ if(instance->available[i][j] ==
+ FT_AVAILABLE_RASTERISED)
+ free(instance->glyphs[i][j].bits);
+ }
+ free(instance->glyphs[i]);
+ }
+ }
+ free(instance->glyphs);
+ }
+ if(instance->available) {
+ for(i = 0; i < iceil(instance->nglyphs, FONTSEGMENTSIZE); i++) {
+ if(instance->available[i])
+ free(instance->available[i]);
+ }
+ free(instance->available);
+ }
+ free(instance);
+ }
+}
+
+static int
+FreeTypeInstanceFindGlyph(unsigned idx_in, int flags, FTInstancePtr instance,
+ CharInfoPtr **glyphs, int ***available,
+ int *found, int *segmentP, int *offsetP)
+{
+ int segment, offset;
+ unsigned idx = idx_in;
+
+ if( 0 <= instance->ttcap.forceConstantSpacingEnd ){
+ if( (flags & FT_FORCE_CONSTANT_SPACING) )
+ idx += instance->nglyphs / 2 ;
+ }
+
+ if(idx > instance->nglyphs) {
+ *found = 0;
+ return Successful;
+ }
+
+ if(*available == NULL) {
+ *available = calloc(iceil(instance->nglyphs, FONTSEGMENTSIZE),
+ sizeof(int *));
+ if(*available == NULL)
+ return AllocError;
+ }
+
+ segment = ifloor(idx, FONTSEGMENTSIZE);
+ offset = idx - segment * FONTSEGMENTSIZE;
+
+ if((*available)[segment] == NULL) {
+ (*available)[segment] = calloc(FONTSEGMENTSIZE, sizeof(int *));
+ if((*available)[segment] == NULL)
+ return AllocError;
+ }
+
+ if(*glyphs == NULL) {
+ *glyphs = calloc(iceil(instance->nglyphs, FONTSEGMENTSIZE),
+ sizeof(CharInfoPtr));
+ if(*glyphs == NULL)
+ return AllocError;
+ }
+
+ if((*glyphs)[segment] == NULL) {
+ (*glyphs)[segment] = malloc(sizeof(CharInfoRec) * FONTSEGMENTSIZE);
+ if((*glyphs)[segment] == NULL)
+ return AllocError;
+ }
+
+ *found = 1;
+ *segmentP = segment;
+ *offsetP = offset;
+ return Successful;
+}
+
+static int
+FreeTypeInstanceGetGlyph(unsigned idx, int flags, CharInfoPtr *g, FTInstancePtr instance)
+{
+ int found, segment, offset;
+ int xrc;
+ int ***available;
+ CharInfoPtr **glyphs;
+
+ available = &instance->available;
+ glyphs = &instance->glyphs;
+
+ xrc = FreeTypeInstanceFindGlyph(idx, flags, instance, glyphs, available,
+ &found, &segment, &offset);
+ if(xrc != Successful)
+ return xrc;
+
+ if(!found || (*available)[segment][offset] == FT_AVAILABLE_NO) {
+ *g = NULL;
+ return Successful;
+ }
+
+ if((*available)[segment][offset] == FT_AVAILABLE_RASTERISED) {
+ *g = &(*glyphs)[segment][offset];
+ return Successful;
+ }
+
+ flags |= FT_GET_GLYPH_BOTH;
+
+ xrc = FreeTypeRasteriseGlyph(idx, flags,
+ &(*glyphs)[segment][offset], instance,
+ (*available)[segment][offset] >= FT_AVAILABLE_METRICS);
+ if(xrc != Successful && (*available)[segment][offset] >= FT_AVAILABLE_METRICS) {
+ ErrorF("Warning: FreeTypeRasteriseGlyph() returns an error,\n");
+ ErrorF("\tso the backend tries to set a white space.\n");
+ xrc = FreeTypeRasteriseGlyph(idx, flags | FT_GET_DUMMY,
+ &(*glyphs)[segment][offset], instance,
+ (*available)[segment][offset] >= FT_AVAILABLE_METRICS);
+ }
+ if(xrc == Successful) {
+ (*available)[segment][offset] = FT_AVAILABLE_RASTERISED;
+ /* return the glyph */
+ *g = &(*glyphs)[segment][offset];
+ }
+ return xrc;
+}
+
+static int
+FreeTypeInstanceGetGlyphMetrics(unsigned idx, int flags,
+ xCharInfo **metrics, FTInstancePtr instance )
+{
+ int xrc;
+ int found, segment, offset;
+
+ /* Char cell */
+ if(instance->spacing == FT_CHARCELL) {
+ *metrics = instance->charcellMetrics;
+ return Successful;
+ }
+ /* Force constant metrics */
+ if( flags & FT_FORCE_CONSTANT_SPACING) {
+ *metrics = instance->forceConstantMetrics;
+ return Successful;
+ }
+
+ /* Not char cell */
+
+ xrc = FreeTypeInstanceFindGlyph(idx, flags, instance,
+ &instance->glyphs, &instance->available,
+ &found, &segment, &offset);
+ if(xrc != Successful)
+ return xrc;
+ if(!found) {
+ *metrics = NULL;
+ return Successful;
+ }
+ if( instance->available[segment][offset] == FT_AVAILABLE_NO ) {
+ *metrics = NULL;
+ return Successful;
+ }
+
+ if( instance->available[segment][offset] >= FT_AVAILABLE_METRICS ) {
+ *metrics = &instance->glyphs[segment][offset].metrics;
+ return Successful;
+ }
+
+ flags |= FT_GET_GLYPH_METRICS_ONLY;
+
+ xrc = FreeTypeRasteriseGlyph(idx, flags,
+ &instance->glyphs[segment][offset],
+ instance, 0);
+ if(xrc == Successful) {
+ instance->available[segment][offset] = FT_AVAILABLE_METRICS;
+ *metrics = &instance->glyphs[segment][offset].metrics;
+ }
+ return xrc;
+}
+
+/*
+ * Pseudo enbolding similar as Microsoft Windows.
+ * It is useful but poor.
+ */
+static void
+ft_make_up_bold_bitmap( char *raster, int bpr, int ht, int ds_mode)
+{
+ int x, y;
+ unsigned char *p = (unsigned char *)raster;
+ if ( ds_mode & TTCAP_DOUBLE_STRIKE_MKBOLD_EDGE_LEFT ) {
+ for (y=0; y<ht; y++) {
+ unsigned char rev_pat=0;
+ unsigned char lsb = 0;
+ for (x=0; x<bpr; x++) {
+ unsigned char tmp = *p<<7;
+ if ( (rev_pat & 0x01) && (*p & 0x80) ) p[-1] &= 0xfe;
+ rev_pat = ~(*p);
+ *p |= (*p>>1) | lsb;
+ *p &= ~(rev_pat & (*p << 1));
+ lsb = tmp;
+ p++;
+ }
+ }
+ }
+ else {
+ for (y=0; y<ht; y++) {
+ unsigned char lsb = 0;
+ for (x=0; x<bpr; x++) {
+ unsigned char tmp = *p<<7;
+ *p |= (*p>>1) | lsb;
+ lsb = tmp;
+ p++;
+ }
+ }
+ }
+}
+
+static void
+ft_make_up_italic_bitmap( char *raster, int bpr, int ht, int shift,
+ int h_total, int h_offset, double a_italic)
+{
+ int x, y;
+ unsigned char *p = (unsigned char *)raster;
+ if ( a_italic < 0 ) shift = -shift;
+ for (y=0; y<ht; y++) {
+ unsigned char *tmp_p = p + y*bpr;
+ int tmp_shift = shift * (h_total -1 -(y+h_offset)) / h_total;
+ int tmp_byte_shift;
+ if ( 0 <= tmp_shift ) {
+ tmp_byte_shift = tmp_shift/8;
+ tmp_shift %= 8;
+ if ( tmp_shift ) {
+ for (x=bpr-1;0<=x;x--) {
+ if ( x != bpr-1 )
+ tmp_p[x+1] |= tmp_p[x]<<(8-tmp_shift);
+ tmp_p[x]>>=tmp_shift;
+ }
+ }
+ if ( tmp_byte_shift ) {
+ for (x=bpr-1;0<x;x--) {
+ tmp_p[x] = tmp_p[x-1];
+ }
+ tmp_p[x]=0;
+ }
+ }
+ else {
+ tmp_shift = -tmp_shift;
+ tmp_byte_shift = tmp_shift/8;
+ tmp_shift %= 8;
+ if ( tmp_shift ) {
+ for (x=0;x<bpr;x++) {
+ if ( x != 0 )
+ tmp_p[x-1] |= tmp_p[x]>>(8-tmp_shift);
+ tmp_p[x]<<=tmp_shift;
+ }
+ }
+ if ( tmp_byte_shift ) {
+ for (x=0;x<bpr-1;x++) {
+ tmp_p[x] = tmp_p[x+1];
+ }
+ tmp_p[x]=0;
+ }
+ }
+ }
+}
+
+/*
+ * The very lazy method,
+ * parse the htmx field in TrueType font.
+ */
+
+static void
+tt_get_metrics( FT_Face face,
+ FT_UInt idx,
+ FT_UInt num_hmetrics,
+ FT_Short* bearing,
+ FT_UShort* advance )
+{
+ /* read the metrics directly from the horizontal header, we
+ * parse the SFNT table directly through the standard FreeType API.
+ * this works with any version of the library and doesn't need to
+ * peek at its internals. Maybe a bit less
+ */
+ FT_UInt count = num_hmetrics;
+ FT_ULong length = 0;
+ FT_ULong offset = 0;
+ FT_Error error;
+
+ error = FT_Load_Sfnt_Table( face, TTAG_hmtx, 0, NULL, &length );
+
+ if ( count == 0 || error )
+ {
+ *advance = 0;
+ *bearing = 0;
+ }
+ else if ( idx < count )
+ {
+ offset = idx * 4L;
+ if ( offset + 4 > length )
+ {
+ *advance = 0;
+ *bearing = 0;
+ }
+ else
+ {
+ *advance = sfnt_get_ushort( face, TTAG_hmtx, offset );
+ *bearing = sfnt_get_short ( face, TTAG_hmtx, offset+2 );
+ }
+ }
+ else
+ {
+ offset = 4L * (count - 1);
+ if ( offset + 4 > length )
+ {
+ *advance = 0;
+ *bearing = 0;
+ }
+ else
+ {
+ *advance = sfnt_get_ushort ( face, TTAG_hmtx, offset );
+ offset += 4 + 2 * ( idx - count );
+ if ( offset + 2 > length)
+ *bearing = 0;
+ else
+ *bearing = sfnt_get_short ( face, TTAG_hmtx, offset );
+ }
+ }
+}
+
+static int
+ft_get_very_lazy_bbox( FT_UInt index,
+ FT_Face face,
+ FT_Size size,
+ FT_UInt num_hmetrics,
+ double slant,
+ FT_Matrix *matrix,
+ FT_BBox *bbox,
+ FT_Long *horiAdvance,
+ FT_Long *vertAdvance)
+{
+ if ( FT_IS_SFNT( face ) ) {
+ FT_Size_Metrics *smetrics = &size->metrics;
+ FT_Short leftBearing = 0;
+ FT_UShort advance = 0;
+ FT_Vector p0, p1, p2, p3;
+
+ /* horizontal */
+ tt_get_metrics( face, index, num_hmetrics,
+ &leftBearing, &advance );
+
+#if 0
+ fprintf(stderr,"x_scale=%f y_scale=%f\n",
+ (double)smetrics->x_scale,(double)smetrics->y_scale);
+#endif
+ bbox->xMax = *horiAdvance =
+ FT_MulFix( advance, smetrics->x_scale );
+ bbox->xMin =
+ FT_MulFix( leftBearing, smetrics->x_scale );
+ /* vertical */
+ bbox->yMin = FT_MulFix( face->bbox.yMin,
+ smetrics->y_scale );
+ bbox->yMax = FT_MulFix( face->bbox.yMax,
+ smetrics->y_scale );
+ /* slant */
+ if( 0 < slant ) {
+ bbox->xMax += slant * bbox->yMax;
+ bbox->xMin += slant * bbox->yMin;
+ }
+ else if( slant < 0 ) {
+ bbox->xMax += slant * bbox->yMin;
+ bbox->xMin += slant * bbox->yMax;
+ }
+
+ *vertAdvance = -1; /* We don't support */
+
+ p0.x = p2.x = bbox->xMin;
+ p1.x = p3.x = bbox->xMax;
+ p0.y = p1.y = bbox->yMin;
+ p2.y = p3.y = bbox->yMax;
+
+ FT_Vector_Transform(&p0, matrix);
+ FT_Vector_Transform(&p1, matrix);
+ FT_Vector_Transform(&p2, matrix);
+ FT_Vector_Transform(&p3, matrix);
+
+#if 0
+ fprintf(stderr,
+ "->(%.1f %.1f) (%.1f %.1f)"
+ " (%.1f %.1f) (%.1f %.1f)\n",
+ p0.x / 64.0, p0.y / 64.0,
+ p1.x / 64.0, p1.y / 64.0,
+ p2.x / 64.0, p2.y / 64.0,
+ p3.x / 64.0, p3.y / 64.0);
+#endif
+ bbox->xMin = MIN(p0.x, MIN(p1.x, MIN(p2.x, p3.x)));
+ bbox->xMax = MAX(p0.x, MAX(p1.x, MAX(p2.x, p3.x)));
+ bbox->yMin = MIN(p0.y, MIN(p1.y, MIN(p2.y, p3.y)));
+ bbox->yMax = MAX(p0.y, MAX(p1.y, MAX(p2.y, p3.y)));
+ return 0; /* Successful */
+ }
+ return -1;
+}
+
+static FT_Error
+FT_Do_SBit_Metrics( FT_Face ft_face, FT_Size ft_size, FT_ULong strike_index,
+ FT_UShort glyph_index, FT_Glyph_Metrics *metrics_return,
+ int *sbitchk_incomplete_but_exist )
+{
+#if 1
+ if ( strike_index != 0xFFFFU && ft_face->available_sizes != NULL )
+ {
+ FT_Error error;
+ FT_Bitmap_Size* sz = &ft_face->available_sizes[strike_index];
+
+ error = FT_Set_Pixel_Sizes( ft_face, sz->x_ppem/64, sz->y_ppem/64 );
+ if ( !error )
+ {
+ error = FT_Load_Glyph( ft_face, glyph_index, FT_LOAD_SBITS_ONLY );
+ if ( !error )
+ {
+ if ( metrics_return != NULL )
+ *metrics_return = ft_face->glyph->metrics;
+
+ return 0;
+ }
+ }
+ }
+ return -1;
+#elif (FREETYPE_VERSION >= 2001008)
+ SFNT_Service sfnt;
+ TT_Face face;
+ FT_Error error;
+ FT_Stream stream;
+ TT_SBit_Strike strike;
+ TT_SBit_Range range;
+ TT_SBit_MetricsRec elem_metrics;
+ FT_ULong ebdt_pos;
+ FT_ULong glyph_offset;
+ ;
+
+ if ( ! FT_IS_SFNT( ft_face ) )
+ {
+ error=-1;
+ goto Exit;
+ }
+
+ face = (TT_Face)ft_face;
+ sfnt = (SFNT_Service)face->sfnt;
+
+ if (strike_index != 0xFFFFU && sfnt && sfnt->find_sbit_image &&
+ sfnt->load_sbits) {
+ /* Check whether there is a glyph sbit for the current index */
+ error = sfnt->find_sbit_image( face, glyph_index, strike_index,
+ &range, &strike, &glyph_offset );
+ }
+ else error=-1;
+ if ( error ) goto Exit;
+
+ if ( metrics_return == NULL ) goto Exit;
+
+ stream = face->root.stream;
+
+ /* now, find the location of the `EBDT' table in */
+ /* the font file */
+ error = face->goto_table( face, TTAG_EBDT, stream, 0 );
+ if ( error )
+ error = face->goto_table( face, TTAG_bdat, stream, 0 );
+ if (error)
+ goto Exit;
+
+ ebdt_pos = FT_STREAM_POS();
+
+ /* place stream at beginning of glyph data and read metrics */
+ if ( FT_STREAM_SEEK( ebdt_pos + glyph_offset ) )
+ goto Exit;
+
+ error = sfnt->load_sbit_metrics( stream, range, &elem_metrics );
+ if ( error )
+ goto Exit;
+
+ metrics_return->width = (FT_Pos)elem_metrics.width << 6;
+ metrics_return->height = (FT_Pos)elem_metrics.height << 6;
+
+ metrics_return->horiBearingX = (FT_Pos)elem_metrics.horiBearingX << 6;
+ metrics_return->horiBearingY = (FT_Pos)elem_metrics.horiBearingY << 6;
+ metrics_return->horiAdvance = (FT_Pos)elem_metrics.horiAdvance << 6;
+
+ metrics_return->vertBearingX = (FT_Pos)elem_metrics.vertBearingX << 6;
+ metrics_return->vertBearingY = (FT_Pos)elem_metrics.vertBearingY << 6;
+ metrics_return->vertAdvance = (FT_Pos)elem_metrics.vertAdvance << 6;
+
+ Exit:
+ return error;
+#else /* if (FREETYPE_VERSION < 2001008) */
+ TT_Face face;
+ SFNT_Service sfnt;
+ if ( ! FT_IS_SFNT( ft_face ) ) return -1;
+ face = (TT_Face)ft_face;
+ sfnt = (SFNT_Service)face->sfnt;
+ if ( strike_index != 0xFFFFU && sfnt->load_sbits ) {
+ if ( sbitchk_incomplete_but_exist ) *sbitchk_incomplete_but_exist=1;
+ }
+ return -1;
+#endif
+}
+
+int
+FreeTypeRasteriseGlyph(unsigned idx, int flags, CharInfoPtr tgp,
+ FTInstancePtr instance, int hasMetrics)
+{
+ FTFacePtr face;
+ FT_BBox bbox;
+ FT_Long outline_hori_advance, outline_vert_advance;
+ FT_Glyph_Metrics sbit_metrics;
+ FT_Glyph_Metrics *bitmap_metrics=NULL, *metrics = NULL;
+ char *raster;
+ int wd, ht, bpr; /* width, height, bytes per row */
+ int wd_actual, ht_actual;
+ int ftrc, is_outline, correct, b_shift=0;
+ int dx, dy;
+ int leftSideBearing, rightSideBearing, characterWidth, rawCharacterWidth,
+ ascent, descent;
+ int sbitchk_incomplete_but_exist;
+ double bbox_center_raw;
+
+ face = instance->face;
+
+ FreeTypeActivateInstance(instance);
+
+ if(!tgp) return AllocError;
+
+ /*
+ * PREPARE METRICS
+ */
+
+ if(!hasMetrics) {
+ if( instance->spacing == FT_CHARCELL || flags & FT_GET_DUMMY ){
+ memcpy((char*)&tgp->metrics,
+ (char*)instance->charcellMetrics,
+ sizeof(xCharInfo));
+ }
+ else if( flags & FT_FORCE_CONSTANT_SPACING ) {
+ memcpy((char*)&tgp->metrics,
+ (char*)instance->forceConstantMetrics,
+ sizeof(xCharInfo));
+ }
+ /* mono or prop. */
+ else{
+ int new_width;
+ double ratio;
+
+ sbitchk_incomplete_but_exist=0;
+ if( ! (instance->load_flags & FT_LOAD_NO_BITMAP) ) {
+ if( FT_Do_SBit_Metrics(face->face,instance->size,instance->strike_index,
+ idx,&sbit_metrics,&sbitchk_incomplete_but_exist)==0 ) {
+ bitmap_metrics = &sbit_metrics;
+ }
+ }
+ if( bitmap_metrics == NULL ) {
+ if ( sbitchk_incomplete_but_exist==0 && (instance->ttcap.flags & TTCAP_IS_VERY_LAZY) ) {
+ if( ft_get_very_lazy_bbox( idx, face->face, instance->size,
+ face->num_hmetrics,
+ instance->ttcap.vl_slant,
+ &instance->transformation.matrix,
+ &bbox, &outline_hori_advance,
+ &outline_vert_advance ) == 0 ) {
+ goto bbox_ok; /* skip exact calculation */
+ }
+ }
+ ftrc = FT_Load_Glyph(instance->face->face, idx,
+ instance->load_flags);
+ if(ftrc != 0) return FTtoXReturnCode(ftrc);
+ metrics = &face->face->glyph->metrics;
+ if( face->face->glyph->format == FT_GLYPH_FORMAT_BITMAP ) {
+ bitmap_metrics = metrics;
+ }
+ }
+
+ if( bitmap_metrics ) {
+ FT_Pos factor;
+
+ leftSideBearing = bitmap_metrics->horiBearingX / 64;
+ rightSideBearing = (bitmap_metrics->width + bitmap_metrics->horiBearingX) / 64;
+ bbox_center_raw = (2.0 * bitmap_metrics->horiBearingX + bitmap_metrics->width)/2.0/64.0;
+ characterWidth = (int)floor(bitmap_metrics->horiAdvance
+ * instance->ttcap.scaleBBoxWidth / 64.0 + .5);
+ ascent = bitmap_metrics->horiBearingY / 64;
+ descent = (bitmap_metrics->height - bitmap_metrics->horiBearingY) / 64 ;
+ /* */
+ new_width = characterWidth;
+ if( instance->ttcap.flags & TTCAP_DOUBLE_STRIKE_CORRECT_B_BOX_WIDTH )
+ new_width += instance->ttcap.doubleStrikeShift;
+ new_width += instance->ttcap.adjustBBoxWidthByPixel;
+ ratio = (double)new_width/characterWidth;
+ characterWidth = new_width;
+ /* adjustment by pixel unit */
+ if( instance->ttcap.flags & TTCAP_DOUBLE_STRIKE )
+ rightSideBearing += instance->ttcap.doubleStrikeShift;
+ rightSideBearing += instance->ttcap.adjustRightSideBearingByPixel;
+ leftSideBearing += instance->ttcap.adjustLeftSideBearingByPixel;
+ rightSideBearing += instance->ttcap.rsbShiftOfBitmapAutoItalic;
+ leftSideBearing += instance->ttcap.lsbShiftOfBitmapAutoItalic;
+ /* */
+ factor = bitmap_metrics->horiAdvance;
+ rawCharacterWidth = (unsigned short)(short)(floor(1000 * factor
+ * instance->ttcap.scaleBBoxWidth * ratio / 64.
+ / instance->pixel_size));
+ }
+ else {
+ /* Outline */
+#ifdef USE_GET_CBOX
+ /* Very fast?? */
+ FT_Outline_Get_CBox(&face->face->glyph->outline, &bbox);
+ ftrc=0; /* FT_Outline_Get_CBox returns nothing. */
+#else
+ /* Calculate exact metrics */
+ ftrc=FT_Outline_Get_BBox(&face->face->glyph->outline, &bbox);
+#endif
+ if( ftrc != 0 ) return FTtoXReturnCode(ftrc);
+ outline_hori_advance = metrics->horiAdvance;
+ outline_vert_advance = metrics->vertAdvance;
+ bbox_ok:
+ descent = CEIL64(-bbox.yMin - 32) / 64;
+ leftSideBearing = FLOOR64(bbox.xMin + 32) / 64;
+ ascent = FLOOR64(bbox.yMax + 32) / 64;
+ rightSideBearing = FLOOR64(bbox.xMax + 32) / 64;
+ bbox_center_raw = (double)(bbox.xMax + bbox.xMin)/2.0/64.;
+ if ( instance->pixel_width_unit_x != 0 )
+ characterWidth =
+ (int)floor( outline_hori_advance
+ * instance->ttcap.scaleBBoxWidth
+ * instance->pixel_width_unit_x / 64. + .5);
+ else {
+ characterWidth =
+ (int)floor( outline_vert_advance
+ * instance->ttcap.scaleBBoxHeight
+ * instance->pixel_width_unit_y / 64. + .5);
+ if(characterWidth <= 0)
+ characterWidth = instance->charcellMetrics->characterWidth;
+ }
+ /* */
+ new_width = characterWidth;
+ if( instance->ttcap.flags & TTCAP_DOUBLE_STRIKE_CORRECT_B_BOX_WIDTH )
+ new_width += instance->ttcap.doubleStrikeShift;
+ new_width += instance->ttcap.adjustBBoxWidthByPixel;
+ ratio = (double)new_width/characterWidth;
+ characterWidth = new_width;
+ if ( instance->pixel_width_unit_x != 0 )
+ rawCharacterWidth =
+ (unsigned short)(short)(floor(1000 * outline_hori_advance
+ * instance->ttcap.scaleBBoxWidth * ratio
+ * instance->pixel_width_unit_x / 64.));
+ else {
+ rawCharacterWidth =
+ (unsigned short)(short)(floor(1000 * outline_vert_advance
+ * instance->ttcap.scaleBBoxHeight * ratio
+ * instance->pixel_width_unit_y / 64.));
+ if(rawCharacterWidth <= 0)
+ rawCharacterWidth = instance->charcellMetrics->attributes;
+ }
+ /* adjustment by pixel unit */
+ if( instance->ttcap.flags & TTCAP_DOUBLE_STRIKE )
+ rightSideBearing += instance->ttcap.doubleStrikeShift;
+ rightSideBearing += instance->ttcap.adjustRightSideBearingByPixel;
+ leftSideBearing += instance->ttcap.adjustLeftSideBearingByPixel;
+ }
+
+ /* Set the glyph metrics. */
+ tgp->metrics.attributes = (unsigned short)((short)rawCharacterWidth);
+ tgp->metrics.leftSideBearing = leftSideBearing;
+ tgp->metrics.rightSideBearing = rightSideBearing;
+ tgp->metrics.characterWidth = characterWidth;
+ tgp->metrics.ascent = ascent;
+ tgp->metrics.descent = descent;
+ /* Update the width to match the width of the font */
+ if( instance->spacing != FT_PROPORTIONAL )
+ tgp->metrics.characterWidth = instance->charcellMetrics->characterWidth;
+ if(instance->ttcap.flags & TTCAP_MONO_CENTER){
+ b_shift = (int)floor((instance->advance/2.0-bbox_center_raw) + .5);
+ tgp->metrics.leftSideBearing += b_shift;
+ tgp->metrics.rightSideBearing += b_shift;
+ }
+ }
+ }
+
+ if( flags & FT_GET_GLYPH_METRICS_ONLY ) return Successful;
+
+ /*
+ * CHECK THE NECESSITY OF BITMAP POSITION'S CORRECTION
+ */
+
+ correct=0;
+ if( instance->spacing == FT_CHARCELL ) correct=1;
+ else if( flags & FT_FORCE_CONSTANT_SPACING ) correct=1;
+ else{
+ int sbit_available=0;
+ sbitchk_incomplete_but_exist=0;
+ if( !(instance->load_flags & FT_LOAD_NO_BITMAP) ) {
+ if( FT_Do_SBit_Metrics(face->face,instance->size,
+ instance->strike_index,idx,NULL,
+ &sbitchk_incomplete_but_exist)==0 ) {
+ sbit_available=1;
+ }
+ }
+ if( sbit_available == 0 ) {
+ if ( sbitchk_incomplete_but_exist==0 && (instance->ttcap.flags & TTCAP_IS_VERY_LAZY) ) {
+ if( FT_IS_SFNT(face->face) ) correct=1;
+ }
+ }
+ }
+
+ /*
+ * RENDER AND ALLOCATE BUFFER
+ */
+
+ if( flags & FT_GET_DUMMY ) is_outline = -1;
+ else {
+ if( !metrics ) {
+ ftrc = FT_Load_Glyph(instance->face->face, idx,
+ instance->load_flags);
+ metrics = &face->face->glyph->metrics;
+
+ if(ftrc != 0) return FTtoXReturnCode(ftrc);
+ }
+
+ if( face->face->glyph->format != FT_GLYPH_FORMAT_BITMAP ) {
+#ifdef USE_GET_CBOX
+ FT_Outline_Get_CBox(&face->face->glyph->outline, &bbox);
+ ftrc = 0;
+#else
+ ftrc = FT_Outline_Get_BBox(&face->face->glyph->outline, &bbox);
+#endif
+ if( ftrc != 0 ) return FTtoXReturnCode(ftrc);
+ bbox.yMin = FLOOR64( bbox.yMin );
+ bbox.yMax = CEIL64 ( bbox.yMax );
+ ht_actual = ( bbox.yMax - bbox.yMin ) >> 6;
+ /* FreeType think a glyph with 0 height control box is invalid.
+ * So just let X to create a empty bitmap instead. */
+ if ( ht_actual == 0 )
+ is_outline = -1;
+ else
+ {
+ ftrc = FT_Render_Glyph(face->face->glyph,FT_RENDER_MODE_MONO);
+ if( ftrc != 0 ) return FTtoXReturnCode(ftrc);
+ is_outline = 1;
+ }
+ }
+ else{
+ is_outline=0;
+ }
+ }
+
+ /* Spacial case */
+ if( (instance->ttcap.flags & TTCAP_MONO_CENTER) && hasMetrics ) {
+ if( is_outline == 1 ){
+ if( correct ){
+ if( ft_get_very_lazy_bbox( idx, face->face, instance->size,
+ face->num_hmetrics,
+ instance->ttcap.vl_slant,
+ &instance->transformation.matrix,
+ &bbox, &outline_hori_advance,
+ &outline_vert_advance ) != 0 ){
+ is_outline = -1; /* <- error */
+ }
+ }
+ else {
+#ifdef USE_GET_CBOX
+ FT_Outline_Get_CBox(&face->face->glyph->outline, &bbox);
+ ftrc=0;
+#else
+ ftrc=FT_Outline_Get_BBox(&face->face->glyph->outline, &bbox);
+#endif
+ if( ftrc != 0 ) return FTtoXReturnCode(ftrc);
+ }
+ bbox_center_raw = (double)(bbox.xMax + bbox.xMin)/2.0/64.;
+ }
+ else if( is_outline == 0 )
+ bbox_center_raw = (2.0 * metrics->horiBearingX + metrics->width)/2.0/64.0;
+ else
+ bbox_center_raw = 0;
+ b_shift = (int)floor((instance->advance/2.0-bbox_center_raw) + .5);
+ }
+
+ wd_actual = tgp->metrics.rightSideBearing - tgp->metrics.leftSideBearing;
+ ht_actual = tgp->metrics.ascent + tgp->metrics.descent;
+
+ /* The X convention is to consider a character with an empty
+ * bounding box as undefined. This convention is broken. */
+
+ if(wd_actual <= 0) wd = 1;
+ else wd=wd_actual;
+ if(ht_actual <= 0) ht = 1;
+ else ht=ht_actual;
+
+ bpr = (((wd + (instance->bmfmt.glyph<<3) - 1) >> 3) &
+ -instance->bmfmt.glyph);
+ raster = calloc(1, ht * bpr);
+ if(raster == NULL)
+ return AllocError;
+
+ tgp->bits = raster;
+
+ /* If FT_GET_DUMMY is set, we return white space. */
+ if ( is_outline == -1 ) return Successful;
+
+ if ( wd_actual <= 0 || ht_actual <= 0 ) return Successful;
+
+ /*
+ * CALCULATE OFFSET, dx AND dy.
+ */
+
+ dx = face->face->glyph->bitmap_left - tgp->metrics.leftSideBearing;
+ dy = tgp->metrics.ascent - face->face->glyph->bitmap_top;
+
+ if(instance->ttcap.flags & TTCAP_MONO_CENTER)
+ dx += b_shift;
+
+ /* To prevent chipped bitmap, we correct dx and dy if needed. */
+ if( correct && is_outline==1 ){
+ int lsb, rsb, asc, des;
+ int chip_left,chip_right,chip_top,chip_bot;
+#ifdef USE_GET_CBOX
+ FT_Outline_Get_CBox(&face->face->glyph->outline, &bbox);
+ ftrc=0;
+#else
+ ftrc=FT_Outline_Get_BBox(&face->face->glyph->outline, &bbox);
+#endif
+ if( ftrc != 0 ) return FTtoXReturnCode(ftrc);
+ des = CEIL64(-bbox.yMin - 32) / 64;
+ lsb = FLOOR64(bbox.xMin + 32) / 64;
+ asc = FLOOR64(bbox.yMax + 32) / 64;
+ rsb = FLOOR64(bbox.xMax + 32) / 64;
+ rightSideBearing = tgp->metrics.rightSideBearing;
+ leftSideBearing = tgp->metrics.leftSideBearing;
+ if( instance->ttcap.flags & TTCAP_DOUBLE_STRIKE )
+ rightSideBearing -= instance->ttcap.doubleStrikeShift;
+ /* special case */
+ if(instance->ttcap.flags & TTCAP_MONO_CENTER){
+ leftSideBearing -= b_shift;
+ rightSideBearing -= b_shift;
+ }
+ chip_left = lsb - leftSideBearing;
+ chip_right = rightSideBearing - rsb;
+ if( flags & FT_FORCE_CONSTANT_SPACING ){
+ if( instance->ttcap.force_c_adjust_lsb_by_pixel != 0 ||
+ instance->ttcap.force_c_adjust_rsb_by_pixel != 0 ){
+ chip_left=0;
+ chip_right=0;
+ }
+ }
+ else{
+ if( instance->ttcap.adjustRightSideBearingByPixel != 0 ||
+ instance->ttcap.adjustLeftSideBearingByPixel != 0 ){
+ chip_left=0;
+ chip_right=0;
+ }
+ }
+ chip_top = tgp->metrics.ascent - asc;
+ chip_bot = tgp->metrics.descent - des;
+ if( chip_left < 0 && 0 < chip_right ) dx++;
+ else if( chip_right < 0 && 0 < chip_left ) dx--;
+ if( chip_top < 0 && 0 < chip_bot ) dy++;
+ else if( chip_bot < 0 && 0 < chip_top ) dy--;
+ }
+
+ /*
+ * COPY RASTER
+ */
+
+ {
+ FT_Bitmap *bitmap;
+ int i, j;
+ unsigned char *current_raster;
+ unsigned char *current_buffer;
+ int mod_dx0,mod_dx1;
+ int div_dx;
+ bitmap = &face->face->glyph->bitmap;
+ if( 0 <= dx ){
+ div_dx = dx / 8;
+ mod_dx0 = dx % 8;
+ mod_dx1 = 8-mod_dx0;
+ }
+ else{
+ div_dx = dx / 8 -1;
+ mod_dx1 = -dx % 8;
+ mod_dx0 = 8-mod_dx1;
+ }
+ for( i = MAX(0, dy) ; i<ht ; i++ ){
+ int prev_jj,jj;
+ if( bitmap->rows <= i-dy ) break;
+ current_buffer=(unsigned char *)(bitmap->buffer+bitmap->pitch*(i-dy));
+ current_raster=(unsigned char *)(raster+i*bpr);
+ j = MAX(0,div_dx);
+ jj = j-div_dx;
+ prev_jj = jj-1;
+ if( j<bpr ){
+ if( 0 <= prev_jj && prev_jj < bitmap->pitch )
+ current_raster[j]|=current_buffer[prev_jj]<<mod_dx1;
+ if( 0 <= jj && jj < bitmap->pitch ){
+ current_raster[j]|=current_buffer[jj]>>mod_dx0;
+ j++; prev_jj++; jj++;
+ for( ; j<bpr ; j++,prev_jj++,jj++ ){
+ current_raster[j]|=current_buffer[prev_jj]<<mod_dx1;
+ if( bitmap->pitch <= jj ) break;
+ current_raster[j]|=current_buffer[jj]>>mod_dx0;
+ }
+ }
+ }
+ }
+ }
+
+ /* by TTCap */
+ if ( instance->ttcap.flags & TTCAP_DOUBLE_STRIKE ) {
+ int i;
+ for( i=0 ; i < instance->ttcap.doubleStrikeShift ; i++ )
+ ft_make_up_bold_bitmap( raster, bpr, ht, instance->ttcap.flags);
+ }
+ if ( is_outline == 0 &&
+ ( instance->ttcap.lsbShiftOfBitmapAutoItalic != 0 ||
+ instance->ttcap.rsbShiftOfBitmapAutoItalic != 0 ) ) {
+ ft_make_up_italic_bitmap( raster, bpr, ht,
+ - instance->ttcap.lsbShiftOfBitmapAutoItalic
+ + instance->ttcap.rsbShiftOfBitmapAutoItalic,
+ instance->charcellMetrics->ascent
+ + instance->charcellMetrics->descent,
+ instance->charcellMetrics->ascent
+ - tgp->metrics.ascent,
+ instance->ttcap.autoItalic);
+ }
+
+ if(instance->bmfmt.bit == LSBFirst) {
+ BitOrderInvert((unsigned char*)(tgp->bits), ht*bpr);
+ }
+
+ if(instance->bmfmt.byte != instance->bmfmt.bit) {
+ switch(instance->bmfmt.scan) {
+ case 1:
+ break;
+ case 2:
+ TwoByteSwap((unsigned char*)(tgp->bits), ht*bpr);
+ break;
+ case 4:
+ FourByteSwap((unsigned char*)(tgp->bits), ht*bpr);
+ break;
+ default:
+ ;
+ }
+ }
+
+ return Successful;
+}
+
+static void
+FreeTypeFreeFont(FTFontPtr font)
+{
+ FreeTypeFreeInstance(font->instance);
+ if(font->ranges)
+ free(font->ranges);
+ if(font->dummy_char.bits)
+ free(font->dummy_char.bits);
+ free(font);
+}
+
+/* Free a font. If freeProps is 0, don't free the properties. */
+
+static void
+FreeTypeFreeXFont(FontPtr pFont, int freeProps)
+{
+ FTFontPtr tf;
+
+ if(pFont) {
+ if((tf = (FTFontPtr)pFont->fontPrivate)) {
+ FreeTypeFreeFont(tf);
+ }
+ if(freeProps && pFont->info.nprops>0) {
+ free(pFont->info.isStringProp);
+ free(pFont->info.props);
+ }
+ DestroyFontRec(pFont);
+ }
+}
+
+
+/* Unload a font */
+
+static void
+FreeTypeUnloadXFont(FontPtr pFont)
+{
+ MUMBLE("Unloading\n");
+ FreeTypeFreeXFont(pFont, 1);
+}
+
+/* Add the font properties, including the Font name, the XLFD
+ properties, some strings from the font, and various typographical
+ data. We only provide data readily available in the tables in the
+ font for now, altough FIGURE_WIDTH would be a good idea as it is
+ used by Xaw. */
+
+static int
+FreeTypeAddProperties(FTFontPtr font, FontScalablePtr vals, FontInfoPtr info,
+ char *fontname, int rawAverageWidth, Bool font_properties)
+{
+ int i, j, maxprops;
+ char *sp, *ep, val[MAXFONTNAMELEN], *vp;
+ FTFacePtr face;
+ FTInstancePtr instance;
+ FTNormalisedTransformationPtr trans;
+ int upm;
+ TT_OS2 *os2;
+ TT_Postscript *post;
+ PS_FontInfoRec t1info_rec, *t1info;
+ int xlfdProps = 0;
+ int ftrc;
+
+ instance = font->instance;
+ face = instance->face;
+ trans = &instance->transformation;
+ upm = face->face->units_per_EM;
+ if(upm == 0) {
+ /* Work around FreeType bug */
+ upm = WORK_AROUND_UPM;
+ }
+
+ os2 = FT_Get_Sfnt_Table(face->face, ft_sfnt_os2);
+ post = FT_Get_Sfnt_Table(face->face, ft_sfnt_post);
+ ftrc = FT_Get_PS_Font_Info(face->face, &t1info_rec);
+ if(ftrc == 0)
+ t1info = &t1info_rec;
+ else
+ t1info = NULL;
+
+ if(t1info) {
+ os2 = NULL;
+ post = NULL;
+ }
+
+ info->nprops = 0; /* in case we abort */
+
+ strcpy(val, fontname);
+ if(FontParseXLFDName(val, vals, FONT_XLFD_REPLACE_VALUE)) {
+ xlfdProps = 1;
+ } else {
+ MUMBLE("Couldn't parse XLFD\n");
+ xlfdProps = 0;
+ }
+
+ maxprops=
+ 1 + /* NAME */
+ (xlfdProps ? 14 : 0) + /* from XLFD */
+ 5 +
+ ( !face->bitmap ? 3 : 0 ) + /* raw_av,raw_asc,raw_dec */
+ ( font_properties ? 2 : 0 ) + /* asc,dec */
+ ( (font_properties && os2) ? 6 : 0 ) +
+ ( (font_properties && (post || t1info)) ? 3 : 0 ) +
+ 2; /* type */
+
+ info->props = malloc(maxprops * sizeof(FontPropRec));
+ if(info->props == NULL)
+ return AllocError;
+
+ info->isStringProp = malloc(maxprops);
+ if(info->isStringProp == NULL) {
+ free(info->props);
+ return AllocError;
+ }
+
+ memset((char *)info->isStringProp, 0, maxprops);
+
+ i = 0;
+
+ info->props[i].name = MakeAtom("FONT", 4, TRUE);
+ info->props[i].value = MakeAtom(val, strlen(val), TRUE);
+ info->isStringProp[i] = 1;
+ i++;
+
+ if(*val && *(sp = val + 1)) {
+ for (j = 0, sp = val + 1; j < 14; j++) {
+ if (j == 13)
+ /* Handle the case of the final field containing a subset
+ specification. */
+ for (ep = sp; *ep && *ep != '['; ep++);
+ else
+ for (ep = sp; *ep && *ep != '-'; ep++);
+
+ info->props[i].name =
+ MakeAtom(xlfd_props[j], strlen(xlfd_props[j]), TRUE);
+
+ switch(j) {
+ case 6: /* pixel size */
+ info->props[i].value =
+ (int)(fabs(vals->pixel_matrix[3]) + 0.5);
+ i++;
+ break;
+ case 7: /* point size */
+ info->props[i].value =
+ (int)(fabs(vals->point_matrix[3])*10.0 + 0.5);
+ i++;
+ break;
+ case 8: /* resolution x */
+ info->props[i].value = vals->x;
+ i++;
+ break;
+ case 9: /* resolution y */
+ info->props[i].value = vals->y;
+ i++;
+ break;
+ case 11: /* average width */
+ info->props[i].value = vals->width;
+ i++;
+ break;
+ default: /* a string */
+ info->props[i].value = MakeAtom(sp, ep - sp, TRUE);
+ info->isStringProp[i] = 1;
+ i++;
+ }
+ sp = ++ep;
+ }
+ }
+
+ info->props[i].name = MakeAtom("RAW_PIXEL_SIZE", 14, TRUE);
+ info->props[i].value = 1000;
+ i++;
+
+ info->props[i].name = MakeAtom("RAW_POINT_SIZE", 14, TRUE);
+ info->props[i].value = (long)(72270.0 / (double)vals->y + .5);
+ i++;
+
+ if(!face->bitmap) {
+ info->props[i].name = MakeAtom("RAW_AVERAGE_WIDTH", 17, TRUE);
+ info->props[i].value = rawAverageWidth;
+ i++;
+ }
+
+ if ( font_properties ) {
+ info->props[i].name = MakeAtom("FONT_ASCENT", 11, TRUE);
+ info->props[i].value = info->fontAscent;
+ i++;
+ }
+
+ if(!face->bitmap) {
+ info->props[i].name = MakeAtom("RAW_ASCENT", 10, TRUE);
+ info->props[i].value =
+ ((double)face->face->ascender/(double)upm*1000.0);
+ i++;
+ }
+
+ if ( font_properties ) {
+ info->props[i].name = MakeAtom("FONT_DESCENT", 12, TRUE);
+ info->props[i].value = info->fontDescent;
+ i++;
+ }
+
+ if(!face->bitmap) {
+ info->props[i].name = MakeAtom("RAW_DESCENT", 11, TRUE);
+ info->props[i].value =
+ -((double)face->face->descender/(double)upm*1000.0);
+ i++;
+ }
+
+ j = FTGetEnglishName(face->face, TT_NAME_ID_COPYRIGHT,
+ val, MAXFONTNAMELEN);
+ vp = val;
+ if (j < 0) {
+ if(t1info && t1info->notice) {
+ vp = t1info->notice;
+ j = strlen(vp);
+ }
+ }
+ if(j > 0) {
+ info->props[i].name = MakeAtom("COPYRIGHT", 9, TRUE);
+ info->props[i].value = MakeAtom(vp, j, TRUE);
+ info->isStringProp[i] = 1;
+ i++;
+ }
+
+ j = FTGetEnglishName(face->face, TT_NAME_ID_FULL_NAME,
+ val, MAXFONTNAMELEN);
+ vp = val;
+ if (j < 0) {
+ if(t1info && t1info->full_name) {
+ vp = t1info->full_name;
+ j = strlen(vp);
+ }
+ }
+ if(j > 0) {
+ info->props[i].name = MakeAtom("FACE_NAME", 9, TRUE);
+ info->props[i].value = MakeAtom(vp, j, TRUE);
+ info->isStringProp[i] = 1;
+ i++;
+ }
+
+ vp = (char *)FT_Get_Postscript_Name(face->face);
+ if (vp) {
+ j = strlen(vp);
+ } else {
+ j = -1;
+ }
+ if (j < 0) {
+ j = FTGetEnglishName(face->face, TT_NAME_ID_PS_NAME,
+ val, MAXFONTNAMELEN);
+ vp = val;
+ }
+ if (j < 0) {
+ if(t1info && t1info->full_name) {
+ vp = t1info->full_name;
+ j = strlen(vp);
+ }
+ }
+ if(j > 0) {
+ info->props[i].name = MakeAtom("_ADOBE_POSTSCRIPT_FONTNAME", 26, TRUE);
+ info->props[i].value = MakeAtom(vp, j, TRUE);
+ info->isStringProp[i] = 1;
+ i++;
+ }
+
+ /* These macros handle the case of a diagonal matrix. They convert
+ FUnits into pixels. */
+#define TRANSFORM_FUNITS_X(xval) \
+ ((int) \
+ floor( ((double)(xval)/(double)upm) * (double)vals->pixel_matrix[0] + 0.5 ) )
+
+#define TRANSFORM_FUNITS_Y(yval) \
+ ((int) \
+ floor( ((double)(yval)/(double)upm) * (double)vals->pixel_matrix[3] + 0.5 ) )
+
+ /* In what follows, we assume the matrix is diagonal. In the rare
+ case when it is not, the values will be somewhat wrong. */
+
+ if( font_properties && os2 ) {
+ info->props[i].name = MakeAtom("SUBSCRIPT_SIZE",14,TRUE);
+ info->props[i].value =
+ TRANSFORM_FUNITS_Y(os2->ySubscriptYSize);
+ i++;
+ info->props[i].name = MakeAtom("SUBSCRIPT_X",11,TRUE);
+ info->props[i].value =
+ TRANSFORM_FUNITS_X(os2->ySubscriptXOffset);
+ i++;
+ info->props[i].name = MakeAtom("SUBSCRIPT_Y",11,TRUE);
+ info->props[i].value =
+ TRANSFORM_FUNITS_Y(os2->ySubscriptYOffset);
+ i++;
+ info->props[i].name = MakeAtom("SUPERSCRIPT_SIZE",16,TRUE);
+ info->props[i].value =
+ TRANSFORM_FUNITS_Y(os2->ySuperscriptYSize);
+ i++;
+ info->props[i].name = MakeAtom("SUPERSCRIPT_X",13,TRUE);
+ info->props[i].value =
+ TRANSFORM_FUNITS_X(os2->ySuperscriptXOffset);
+ i++;
+ info->props[i].name = MakeAtom("SUPERSCRIPT_Y",13,TRUE);
+ info->props[i].value =
+ TRANSFORM_FUNITS_Y(os2->ySuperscriptYOffset);
+ i++;
+ }
+
+ if( font_properties && (post || t1info) ) {
+ int underlinePosition, underlineThickness;
+
+ /* Raw underlineposition counts upwards,
+ but UNDERLINE_POSITION counts downwards. */
+ if(post) {
+ underlinePosition = TRANSFORM_FUNITS_Y(-post->underlinePosition);
+ underlineThickness = TRANSFORM_FUNITS_Y(post->underlineThickness);
+ } else {
+ underlinePosition =
+ TRANSFORM_FUNITS_Y(-t1info->underline_position);
+ underlineThickness =
+ TRANSFORM_FUNITS_Y(t1info->underline_thickness);
+ }
+ if(underlineThickness <= 0)
+ underlineThickness = 1;
+
+ info->props[i].name = MakeAtom("UNDERLINE_THICKNESS",19,TRUE);
+ info->props[i].value = underlineThickness;
+ i++;
+
+ info->props[i].name = MakeAtom("UNDERLINE_POSITION",18,TRUE);
+
+ info->props[i].value = underlinePosition;
+
+ i++;
+
+ /* The italic angle is often unreliable for Type 1 fonts */
+ if(post && trans->matrix.xx == trans->matrix.yy) {
+ info->props[i].name = MakeAtom("ITALIC_ANGLE",12,TRUE);
+ info->props[i].value =
+ /* Convert from TT_Fixed to
+ 64th of a degree counterclockwise from 3 o'clock */
+ 90*64+(post->italicAngle >> 10);
+ i++;
+ }
+#undef TRANSFORM_FUNITS_X
+#undef TRANSFORM_FUNITS_Y
+ }
+
+ info->props[i].name = MakeAtom("FONT_TYPE", 9, TRUE);
+ vp = (char *)FT_Get_X11_Font_Format(face->face);
+ info->props[i].value = MakeAtom(vp, strlen(vp), TRUE);
+ info->isStringProp[i] = 1;
+ i++;
+
+ info->props[i].name = MakeAtom("RASTERIZER_NAME", 15, TRUE);
+ info->props[i].value = MakeAtom("FreeType", 10, TRUE);
+ info->isStringProp[i] = 1;
+ i++;
+
+ info->nprops = i;
+ return Successful;
+}
+
+static int
+ft_get_index(unsigned code, FTFontPtr font, unsigned *idx)
+{
+
+ /* As a special case, we pass 0 even when it is not in the ranges;
+ this will allow for the default glyph, which should exist in any
+ TrueType font. */
+
+ /* This is not required...
+ if(code > 0 && font->nranges) {
+ int i;
+ for(i = 0; i < font->nranges; i++)
+ if((code >=
+ font->ranges[i].min_char_low+
+ (font->ranges[i].min_char_high<<8)) &&
+ (code <=
+ font->ranges[i].max_char_low +
+ (font->ranges[i].max_char_high<<8)))
+ break;
+ if(i == font->nranges) {
+ *idx = font->zero_idx;
+ return -1;
+ }
+ }
+ */
+ if( font->info ) {
+ if( !( font->info->firstCol <= (code & 0x000ff) &&
+ (code & 0x000ff) <= font->info->lastCol &&
+ font->info->firstRow <= (code >> 8) &&
+ (code >> 8) <= font->info->lastRow ) ) {
+ *idx = font->zero_idx;
+ /* Error: The code has not been parsed in ft_compute_bounds()!
+ We should not return any metrics. */
+ return -1;
+ }
+ }
+
+ *idx = FTRemap(font->instance->face->face, &font->mapping, code);
+
+ return 0;
+}
+
+static int
+FreeTypeFontGetGlyph(unsigned code, int flags, CharInfoPtr *g, FTFontPtr font)
+{
+ unsigned idx = 0;
+ int xrc;
+
+#ifdef X_ACCEPTS_NO_SUCH_CHAR
+ if( ft_get_index(code,font,&idx) || idx == 0 || idx == font->zero_idx ) {
+ *g = NULL;
+ flags &= ~FT_FORCE_CONSTANT_SPACING;
+ /* if( font->instance->spacing != FT_CHARCELL ) */
+ return Successful;
+ }
+#else
+ if( ft_get_index(code,font,&idx) ) {
+ /* The code has not been parsed! */
+ *g = NULL;
+ flags &= ~FT_FORCE_CONSTANT_SPACING;
+ }
+#endif
+
+ xrc = FreeTypeInstanceGetGlyph(idx, flags, g, font->instance);
+ if( xrc == Successful && *g != NULL )
+ return Successful;
+ if( font->zero_idx != idx ) {
+ xrc = FreeTypeInstanceGetGlyph(font->zero_idx, flags, g, font->instance);
+ if( xrc == Successful && *g != NULL )
+ return Successful;
+ }
+ return FreeTypeInstanceGetGlyph(font->zero_idx, flags|FT_GET_DUMMY, g, font->instance);
+}
+
+static int
+FreeTypeFontGetGlyphMetrics(unsigned code, int flags, xCharInfo **metrics, FTFontPtr font)
+{
+ unsigned idx = 0;
+ int xrc;
+
+#ifdef X_ACCEPTS_NO_SUCH_CHAR
+ if ( ft_get_index(code,font,&idx) || idx == 0 || idx == font->zero_idx ) {
+ *metrics = NULL;
+ flags &= ~FT_FORCE_CONSTANT_SPACING;
+ /* if( font->instance->spacing != FT_CHARCELL ) */
+ return Successful;
+ }
+#else
+ if ( ft_get_index(code,font,&idx) || idx == 0 || idx == font->zero_idx ) {
+ /* The code has not been parsed! */
+ *metrics = NULL;
+ flags &= ~FT_FORCE_CONSTANT_SPACING;
+ }
+#endif
+
+ xrc = FreeTypeInstanceGetGlyphMetrics(idx, flags, metrics, font->instance);
+ if( xrc == Successful && *metrics != NULL )
+ return Successful;
+ if( font->zero_idx != idx ) {
+ xrc = FreeTypeInstanceGetGlyphMetrics(font->zero_idx, flags,
+ metrics, font->instance);
+ if( xrc == Successful && *metrics != NULL )
+ return Successful;
+ }
+ return FreeTypeInstanceGetGlyphMetrics(font->zero_idx, flags|FT_GET_DUMMY, metrics, font->instance);
+}
+
+/*
+ * restrict code range
+ *
+ * boolean for the numeric zone:
+ * results = results & (ranges[0] | ranges[1] | ... ranges[nranges-1])
+ */
+
+static void
+restrict_code_range(unsigned short *refFirstCol,
+ unsigned short *refFirstRow,
+ unsigned short *refLastCol,
+ unsigned short *refLastRow,
+ fsRange const *ranges, int nRanges)
+{
+ if (nRanges) {
+ int minCol = 256, minRow = 256, maxCol = -1, maxRow = -1;
+ fsRange const *r = ranges;
+ int i;
+
+ for (i=0; i<nRanges; i++) {
+ if (r->min_char_high != r->max_char_high) {
+ minCol = 0x00;
+ maxCol = 0xff;
+ } else {
+ if (minCol > r->min_char_low)
+ minCol = r->min_char_low;
+ if (maxCol < r->max_char_low)
+ maxCol = r->max_char_low;
+ }
+ if (minRow > r->min_char_high)
+ minRow = r->min_char_high;
+ if (maxRow < r->max_char_high)
+ maxRow = r->max_char_high;
+ r++;
+ }
+
+ if (minCol > *refLastCol)
+ *refFirstCol = *refLastCol;
+ else if (minCol > *refFirstCol)
+ *refFirstCol = minCol;
+
+ if (maxCol < *refFirstCol)
+ *refLastCol = *refFirstCol;
+ else if (maxCol < *refLastCol)
+ *refLastCol = maxCol;
+
+ if (minRow > *refLastRow) {
+ *refFirstRow = *refLastRow;
+ *refFirstCol = *refLastCol;
+ } else if (minRow > *refFirstRow)
+ *refFirstRow = minRow;
+
+ if (maxRow < *refFirstRow) {
+ *refLastRow = *refFirstRow;
+ *refLastCol = *refFirstCol;
+ } else if (maxRow < *refLastRow)
+ *refLastRow = maxRow;
+ }
+}
+
+
+static int
+restrict_code_range_by_str(int count,unsigned short *refFirstCol,
+ unsigned short *refFirstRow,
+ unsigned short *refLastCol,
+ unsigned short *refLastRow,
+ char const *str)
+{
+ int nRanges = 0;
+ int result = 0;
+ fsRange *ranges = NULL;
+ char const *p, *q;
+
+ p = q = str;
+ for (;;) {
+ int minpoint=0, maxpoint=65535;
+ long val;
+
+ /* skip comma and/or space */
+ while (',' == *p || isspace(*p))
+ p++;
+
+ /* begin point */
+ if ('-' != *p) {
+ val = strtol(p, (char **)&q, 0);
+ if (p == q)
+ /* end or illegal */
+ break;
+ if (val<0 || val>65535) {
+ /* out of zone */
+ break;
+ }
+ minpoint = val;
+ p=q;
+ }
+
+ /* skip space */
+ while (isspace(*p))
+ p++;
+
+ if (',' != *p && '\0' != *p) {
+ /* contiune */
+ if ('-' == *p)
+ /* hyphon */
+ p++;
+ else
+ /* end or illegal */
+ break;
+
+ /* skip space */
+ while (isspace(*p))
+ p++;
+
+ val = strtol(p, (char **)&q, 0);
+ if (p != q) {
+ if (val<0 || val>65535)
+ break;
+ maxpoint = val;
+ } else if (',' != *p && '\0' != *p)
+ /* end or illegal */
+ break;
+ p=q;
+ } else
+ /* comma - single code */
+ maxpoint = minpoint;
+
+ if ( count <= 0 && minpoint>maxpoint ) {
+ int tmp;
+ tmp = minpoint;
+ minpoint = maxpoint;
+ maxpoint = tmp;
+ }
+
+ /* add range */
+#if 0
+ fprintf(stderr, "zone: 0x%04X - 0x%04X\n", minpoint, maxpoint);
+ fflush(stderr);
+#endif
+ nRanges++;
+ ranges = realloc(ranges, nRanges*sizeof(*ranges));
+ if (NULL == ranges)
+ break;
+ {
+ fsRange *r = ranges+nRanges-1;
+
+ r->min_char_low = minpoint & 0xff;
+ r->max_char_low = maxpoint & 0xff;
+ r->min_char_high = (minpoint>>8) & 0xff;
+ r->max_char_high = (maxpoint>>8) & 0xff;
+ }
+ }
+
+ if (ranges) {
+ if ( count <= 0 ) {
+ restrict_code_range(refFirstCol, refFirstRow, refLastCol, refLastRow,
+ ranges, nRanges);
+ }
+ else {
+ int i;
+ fsRange *r;
+ for ( i=0 ; i<nRanges ; i++ ) {
+ if ( count <= i ) break;
+ r = ranges+i;
+ refFirstCol[i] = r->min_char_low;
+ refLastCol[i] = r->max_char_low;
+ refFirstRow[i] = r->min_char_high;
+ refLastRow[i] = r->max_char_high;
+ }
+ result=i;
+ }
+ free(ranges);
+ }
+ return result;
+}
+
+/* *face_number and *spacing are initialized but *load_flags is NOT. */
+static int
+FreeTypeSetUpTTCap( char *fileName, FontScalablePtr vals,
+ char **dynStrRealFileName, char **dynStrFTFileName,
+ struct TTCapInfo *ret, int *face_number, FT_Int32 *load_flags,
+ int *spacing, Bool *font_properties, char **dynStrTTCapCodeRange )
+{
+ int result = Successful;
+ SDynPropRecValList listPropRecVal;
+ SPropRecValContainer contRecValue;
+ Bool hinting=True;
+ Bool isEmbeddedBitmap = True;
+ Bool alwaysEmbeddedBitmap = False;
+ int pixel = vals->pixel;
+
+ *font_properties=True;
+ *dynStrRealFileName=NULL;
+ *dynStrFTFileName=NULL;
+ *dynStrTTCapCodeRange=NULL;
+
+ if (SPropRecValList_new(&listPropRecVal)) {
+ return AllocError;
+ }
+
+ {
+ int len = strlen(fileName);
+ char *capHead = NULL;
+ {
+ /* font cap */
+ char *p1=NULL, *p2=NULL;
+
+ p1=strrchr(fileName, '/');
+ if ( p1 == NULL ) p1 = fileName;
+ else p1++;
+ if (NULL != (p2=strrchr(p1, ':'))) {
+ /* colon exist in the right side of slash. */
+ int dirLen = p1-fileName;
+ int baseLen = fileName+len - p2 -1;
+
+ *dynStrRealFileName = malloc(dirLen+baseLen+1);
+ if( *dynStrRealFileName == NULL ) {
+ result = AllocError;
+ goto quit;
+ }
+ if ( 0 < dirLen )
+ memcpy(*dynStrRealFileName, fileName, dirLen);
+ strcpy(*dynStrRealFileName+dirLen, p2+1);
+ capHead = p1;
+ } else {
+ *dynStrRealFileName = xstrdup(fileName);
+ if( *dynStrRealFileName == NULL ) {
+ result = AllocError;
+ goto quit;
+ }
+ }
+ }
+
+ /* font cap */
+ if (capHead) {
+ if (SPropRecValList_add_by_font_cap(&listPropRecVal,
+ capHead)) {
+ result = BadFontPath;
+ goto quit;
+ }
+ }
+ }
+
+ *face_number=0;
+ *spacing=0;
+ ret->autoItalic=0.0;
+ ret->scaleWidth=1.0;
+ ret->scaleBBoxWidth = 1.0;
+ ret->scaleBBoxHeight = 1.0;
+ ret->doubleStrikeShift = 1;
+ ret->adjustBBoxWidthByPixel = 0;
+ ret->adjustLeftSideBearingByPixel = 0;
+ ret->adjustRightSideBearingByPixel = 0;
+ ret->flags = 0;
+ ret->scaleBitmap = 0.0;
+ ret->forceConstantSpacingBegin = -1;
+ ret->forceConstantSpacingEnd = -1;
+ ret->force_c_representative_metrics_char_code = -2;
+ ret->force_c_scale_b_box_width = 1.0;
+ ret->force_c_scale_b_box_height = 1.0;
+ ret->force_c_adjust_width_by_pixel = 0;
+ ret->force_c_adjust_lsb_by_pixel = 0;
+ ret->force_c_adjust_rsb_by_pixel = 0;
+ ret->force_c_scale_lsb = 0.0;
+ ret->force_c_scale_rsb = 1.0;
+ /* */
+ ret->vl_slant=0;
+ ret->lsbShiftOfBitmapAutoItalic=0;
+ ret->rsbShiftOfBitmapAutoItalic=0;
+ /* face number */
+ {
+ char *beginptr=NULL,*endptr;
+ if ( SPropRecValList_search_record(&listPropRecVal,
+ &contRecValue,
+ "FaceNumber")) {
+ int lv;
+ beginptr = SPropContainer_value_str(contRecValue);
+ lv=strtol(beginptr, &endptr, 10);
+ if ( *beginptr != '\0' && *endptr == '\0' ) {
+ if ( 0 < lv ) *face_number = lv;
+ }
+ }
+ if( beginptr && 0 < *face_number ) {
+ char *slash;
+ *dynStrFTFileName = /* add -> ':'+strlen0+':'+strlen1+'\0' */
+ malloc(1+strlen(beginptr)+1+strlen(*dynStrRealFileName)+1);
+ if( *dynStrFTFileName == NULL ){
+ result = AllocError;
+ goto quit;
+ }
+ **dynStrFTFileName = '\0';
+ slash = strrchr(*dynStrRealFileName,'/');
+ if( slash ) {
+ char *p;
+ strcat(*dynStrFTFileName,*dynStrRealFileName);
+ p = strrchr(*dynStrFTFileName,'/');
+ p[1] = '\0';
+ strcat(*dynStrFTFileName,":");
+ strcat(*dynStrFTFileName,beginptr);
+ strcat(*dynStrFTFileName,":");
+ strcat(*dynStrFTFileName,slash+1);
+ }
+ else{
+ strcat(*dynStrFTFileName,":");
+ strcat(*dynStrFTFileName,beginptr);
+ strcat(*dynStrFTFileName,":");
+ strcat(*dynStrFTFileName,*dynStrRealFileName);
+ }
+ }
+ else{
+ *dynStrFTFileName = malloc(strlen(*dynStrRealFileName)+1);
+ if( *dynStrFTFileName == NULL ){
+ result = AllocError;
+ goto quit;
+ }
+ **dynStrFTFileName = '\0';
+ strcat(*dynStrFTFileName,*dynStrRealFileName);
+ }
+ }
+ /*
+ fprintf(stderr,"[Filename:%s]\n",fileName);
+ fprintf(stderr,"[RealFilename:%s]\n",*dynStrRealFileName);
+ fprintf(stderr,"[FTFilename:%s]\n",*dynStrFTFileName);
+ */
+ /* slant control */
+ if (SPropRecValList_search_record(&listPropRecVal,
+ &contRecValue,
+ "AutoItalic"))
+ ret->autoItalic = SPropContainer_value_dbl(contRecValue);
+ /* hinting control */
+ if (SPropRecValList_search_record(&listPropRecVal,
+ &contRecValue,
+ "Hinting"))
+ hinting = SPropContainer_value_bool(contRecValue);
+ /* scaling */
+ if (SPropRecValList_search_record(&listPropRecVal,
+ &contRecValue,
+ "ScaleWidth")) {
+ ret->scaleWidth = SPropContainer_value_dbl(contRecValue);
+ if (ret->scaleWidth<=0.0) {
+ fprintf(stderr, "ScaleWitdh needs plus.\n");
+ result = BadFontName;
+ goto quit;
+ }
+ }
+ /* bbox adjustment */
+ if (SPropRecValList_search_record(&listPropRecVal,
+ &contRecValue,
+ "ScaleBBoxWidth")) {
+ /* Scaling to Bounding Box Width */
+ int lv;
+ char *endptr,*beginptr;
+ double v,scaleBBoxWidth=1.0,scaleBBoxHeight=1.0;
+ beginptr = SPropContainer_value_str(contRecValue);
+ do {
+ if ( strlen(beginptr) < 1 ) break;
+ v=strtod(beginptr, &endptr);
+ if ( endptr!=beginptr ) {
+ scaleBBoxWidth = v;
+ }
+ if ( *endptr != ';' && *endptr != ',' ) break;
+ if ( *endptr == ',' ) {
+ beginptr=endptr+1;
+ v=strtod(beginptr, &endptr);
+ if ( endptr!=beginptr ) {
+ scaleBBoxHeight = v;
+ }
+ }
+ if ( *endptr != ';' && *endptr != ',' ) break;
+ beginptr=endptr+1;
+ lv=strtol(beginptr, &endptr, 10);
+ if ( endptr!=beginptr ) {
+ ret->adjustBBoxWidthByPixel = lv;
+ }
+ if ( *endptr != ',' ) break;
+ beginptr=endptr+1;
+ lv=strtol(beginptr, &endptr, 10);
+ if ( endptr!=beginptr ) {
+ ret->adjustLeftSideBearingByPixel = lv;
+ }
+ if ( *endptr != ',' ) break;
+ beginptr=endptr+1;
+ lv=strtol(beginptr, &endptr, 10);
+ if ( endptr!=beginptr ) {
+ ret->adjustRightSideBearingByPixel = lv;
+ }
+ } while ( 0 );
+ if (scaleBBoxWidth<=0.0) {
+ fprintf(stderr, "ScaleBBoxWitdh needs plus.\n");
+ result = BadFontName;
+ goto quit;
+ }
+ if (scaleBBoxHeight<=0.0) {
+ fprintf(stderr, "ScaleBBoxHeight needs plus.\n");
+ result = BadFontName;
+ goto quit;
+ }
+ ret->scaleBBoxWidth = scaleBBoxWidth;
+ ret->scaleBBoxHeight = scaleBBoxHeight;
+ }
+ /* spacing */
+ if (SPropRecValList_search_record(&listPropRecVal,
+ &contRecValue,
+ "ForceSpacing")) {
+ char *strSpace = SPropContainer_value_str(contRecValue);
+ Bool err = False;
+ if (1 != strlen(strSpace))
+ err = True;
+ else
+ switch (strSpace[0]) {
+ case 'M':
+ ret->flags |= TTCAP_MONO_CENTER;
+ *spacing = 'm';
+ break;
+ case 'm':
+ case 'p':
+ case 'c':
+ *spacing = strSpace[0];
+ break;
+ default:
+ err = True;
+ }
+ if (err) {
+ result = BadFontName;
+ goto quit;
+ }
+ }
+ /* doube striking */
+ if (SPropRecValList_search_record(&listPropRecVal,
+ &contRecValue,
+ "DoubleStrike")) {
+ /* Set or Reset Auto Bold Flag */
+ char *strDoubleStrike = SPropContainer_value_str(contRecValue);
+ Bool err = False;
+ if ( 0 < strlen(strDoubleStrike) ) {
+ switch (strDoubleStrike[0]) {
+ case 'm':
+ case 'M':
+ case 'l':
+ case 'L':
+ ret->flags |= TTCAP_DOUBLE_STRIKE;
+ ret->flags |= TTCAP_DOUBLE_STRIKE_MKBOLD_EDGE_LEFT;
+ break;
+ case 'y':
+ case 'Y':
+ ret->flags |= TTCAP_DOUBLE_STRIKE;
+ break;
+ case 'n':
+ case 'N':
+ ret->flags &= ~TTCAP_DOUBLE_STRIKE;
+ ret->flags &= ~TTCAP_DOUBLE_STRIKE_MKBOLD_EDGE_LEFT;
+ ret->flags &= ~TTCAP_DOUBLE_STRIKE_CORRECT_B_BOX_WIDTH;
+ break;
+ default:
+ err = True;
+ }
+ if ( err != True ) {
+ if ( strDoubleStrike[1] ) {
+ switch (strDoubleStrike[1]) {
+ case 'b':
+ case 'B':
+ case 'p':
+ case 'P':
+ case 'y':
+ case 'Y':
+ ret->flags |= TTCAP_DOUBLE_STRIKE_CORRECT_B_BOX_WIDTH;
+ break;
+ default:
+ break;
+ }
+ }
+ do {
+ char *comma_ptr=strchr(strDoubleStrike,';');
+ if ( !comma_ptr ) comma_ptr=strchr(strDoubleStrike,',');
+ if ( !comma_ptr ) break;
+ if ( comma_ptr[1] ) {
+ char *endptr;
+ int mkboldMaxPixel;
+ mkboldMaxPixel=strtol(comma_ptr+1, &endptr, 10);
+ if ( endptr != comma_ptr+1 && mkboldMaxPixel <= pixel ) {
+ ret->flags &= ~TTCAP_DOUBLE_STRIKE_MKBOLD_EDGE_LEFT;
+ }
+ }
+ comma_ptr=strchr(comma_ptr+1,',');
+ if ( !comma_ptr ) break;
+ if ( comma_ptr[1] ) {
+ char *endptr;
+ int max_pixel;
+ max_pixel=strtol(comma_ptr+1, &endptr, 10);
+ if ( endptr != comma_ptr+1 && max_pixel <= pixel ) {
+ if( ret->flags & TTCAP_DOUBLE_STRIKE )
+ ret->doubleStrikeShift += pixel / max_pixel;
+ }
+ }
+ } while(0);
+ }
+ }
+ else
+ err = True;
+ if (err) {
+ result = BadFontName;
+ goto quit;
+ }
+ }
+ /* very lazy metrics */
+ if (SPropRecValList_search_record(&listPropRecVal,
+ &contRecValue,
+ "VeryLazyMetrics")){
+ Bool isVeryLazy = SPropContainer_value_bool(contRecValue);
+ ret->flags |= TTCAP_DISABLE_DEFAULT_VERY_LAZY;
+ if( isVeryLazy == True )
+ ret->flags |= TTCAP_IS_VERY_LAZY;
+ else
+ ret->flags &= ~TTCAP_IS_VERY_LAZY;
+ }
+ /* embedded bitmap */
+ if (SPropRecValList_search_record(&listPropRecVal,
+ &contRecValue,
+ "EmbeddedBitmap")) {
+ char *strEmbeddedBitmap = SPropContainer_value_str(contRecValue);
+ Bool err = False;
+ if ( 1 == strlen(strEmbeddedBitmap) ) {
+ switch (strEmbeddedBitmap[0]) {
+ case 'y':
+ case 'Y':
+ isEmbeddedBitmap = True;
+ alwaysEmbeddedBitmap = True;
+ break;
+ case 'u':
+ case 'U':
+ isEmbeddedBitmap = True;
+ alwaysEmbeddedBitmap = False;
+ break;
+ case 'n':
+ case 'N':
+ isEmbeddedBitmap = False;
+ break;
+ default:
+ err = True;
+ }
+ }
+ else
+ err = True;
+ if (err) {
+ result = BadFontName;
+ goto quit;
+ }
+ }
+ /* scale bitmap */
+ if((ret->flags & TTCAP_IS_VERY_LAZY) &&
+ SPropRecValList_search_record(&listPropRecVal,
+ &contRecValue,
+ "VeryLazyBitmapWidthScale")) {
+ /* Scaling to Bitmap Bounding Box Width */
+ double scaleBitmapWidth = SPropContainer_value_dbl(contRecValue);
+
+ fprintf(stderr, "Warning: `bs' option is not required in X-TT version 2.\n");
+#if 0
+ if (scaleBitmapWidth<=0.0) {
+ fprintf(stderr, "ScaleBitmapWitdh needs plus.\n");
+ result = BadFontName;
+ goto quit;
+ }
+#endif
+ ret->scaleBitmap = scaleBitmapWidth;
+ }
+ /* restriction of the code range */
+ if (SPropRecValList_search_record(&listPropRecVal,
+ &contRecValue,
+ "CodeRange")) {
+ *dynStrTTCapCodeRange = xstrdup(SPropContainer_value_str(contRecValue));
+ if( *dynStrTTCapCodeRange == NULL ) {
+ result = AllocError;
+ goto quit;
+ }
+ }
+ /* forceConstantSpacing{Begin,End} */
+ if ( 1 /* ft->spacing == 'p' */ ){
+ unsigned short first_col=0,last_col=0x00ff;
+ unsigned short first_row=0,last_row=0x00ff;
+ if (SPropRecValList_search_record(&listPropRecVal,
+ &contRecValue,
+ "ForceConstantSpacingCodeRange")) {
+ if ( restrict_code_range_by_str(1,&first_col, &first_row,
+ &last_col, &last_row,
+ SPropContainer_value_str(contRecValue)) == 1 ) {
+ ret->forceConstantSpacingBegin = (int)( first_row<<8 | first_col );
+ ret->forceConstantSpacingEnd = (int)( last_row<<8 | last_col );
+ if ( ret->forceConstantSpacingBegin <= ret->forceConstantSpacingEnd )
+ ret->flags &= ~TTCAP_FORCE_C_OUTSIDE;
+ else ret->flags |= TTCAP_FORCE_C_OUTSIDE;
+ }
+ }
+ }
+ /* */
+ if ( 1 ){
+ unsigned short first_col=0, last_col=0x0ff;
+ unsigned short first_row=0, last_row=0x0ff;
+ if ( SPropRecValList_search_record(&listPropRecVal,
+ &contRecValue,
+ "ForceConstantSpacingMetrics")) {
+ char *strMetrics;
+ strMetrics = SPropContainer_value_str(contRecValue);
+ if ( strMetrics ) {
+ char *comma_ptr,*period_ptr,*semic_ptr;
+ semic_ptr=strchr(strMetrics,';');
+ comma_ptr=strchr(strMetrics,',');
+ period_ptr=strchr(strMetrics,'.');
+ if ( semic_ptr && comma_ptr )
+ if ( semic_ptr < comma_ptr ) comma_ptr=NULL;
+ if ( semic_ptr && period_ptr )
+ if ( semic_ptr < period_ptr ) period_ptr=NULL;
+ if ( !comma_ptr && !period_ptr && strMetrics != semic_ptr ) {
+ if ( restrict_code_range_by_str(1,&first_col, &first_row,
+ &last_col, &last_row,
+ SPropContainer_value_str(contRecValue)) == 1 ) {
+ ret->force_c_representative_metrics_char_code =
+ (int)( first_row<<8 | first_col );
+ }
+ }
+ else {
+ double v;
+ char *endptr,*beginptr=strMetrics;
+ do {
+ v=strtod(beginptr, &endptr);
+ if ( endptr!=beginptr ) {
+ ret->force_c_scale_b_box_width = v;
+ }
+ if ( *endptr != ',' ) break;
+ beginptr=endptr+1;
+ v=strtod(beginptr, &endptr);
+ if ( endptr!=beginptr ) {
+ ret->force_c_scale_lsb = v;
+ ret->flags |= TTCAP_FORCE_C_LSB_FLAG;
+ }
+ if ( *endptr != ',' ) break;
+ beginptr=endptr+1;
+ v=strtod(beginptr, &endptr);
+ if ( endptr!=beginptr ) {
+ ret->force_c_scale_rsb = v;
+ ret->flags |= TTCAP_FORCE_C_RSB_FLAG;
+ }
+ if ( *endptr != ',' ) break;
+ beginptr=endptr+1;
+ v=strtod(beginptr, &endptr);
+ if ( endptr!=beginptr ) {
+ ret->force_c_scale_b_box_height = v;
+ }
+ } while (0);
+ }
+ if ( semic_ptr ) {
+ int lv;
+ char *endptr,*beginptr=semic_ptr+1;
+ do {
+ lv=strtol(beginptr, &endptr, 10);
+ if ( endptr!=beginptr ) {
+ ret->force_c_adjust_width_by_pixel=lv;
+ }
+ if ( *endptr != ',' ) break;
+ beginptr=endptr+1;
+ lv=strtol(beginptr, &endptr, 10);
+ if ( endptr!=beginptr ) {
+ ret->force_c_adjust_lsb_by_pixel=lv;
+ }
+ if ( *endptr != ',' ) break;
+ beginptr=endptr+1;
+ lv=strtol(beginptr, &endptr, 10);
+ if ( endptr!=beginptr ) {
+ ret->force_c_adjust_rsb_by_pixel=lv;
+ }
+ } while (0);
+ }
+ }
+ }
+ }
+
+ if (SPropRecValList_search_record(&listPropRecVal,
+ &contRecValue,
+ "FontProperties")) {
+ /* Set or Reset the Flag of FontProperties */
+ *font_properties=SPropContainer_value_bool(contRecValue);
+ }
+
+ ret->force_c_scale_b_box_width *= ret->scaleBBoxWidth;
+ ret->force_c_scale_b_box_height *= ret->scaleBBoxHeight;
+
+ ret->force_c_scale_b_box_width *= ret->scaleWidth;
+ ret->scaleBBoxWidth *= ret->scaleWidth;
+
+ ret->force_c_adjust_rsb_by_pixel += ret->adjustRightSideBearingByPixel;
+ ret->force_c_adjust_lsb_by_pixel += ret->adjustLeftSideBearingByPixel;
+
+ /* scaleWidth, scaleBBoxWidth, force_c_scale_b_box_width, force_c_scale_b_box_width */
+
+ /* by TTCap */
+ if( hinting == False ) *load_flags |= FT_LOAD_NO_HINTING;
+ if( isEmbeddedBitmap == False ) *load_flags |= FT_LOAD_NO_BITMAP;
+ if( ret->autoItalic != 0 && alwaysEmbeddedBitmap == False )
+ *load_flags |= FT_LOAD_NO_BITMAP;
+
+ quit:
+ return result;
+}
+
+static int
+ft_get_trans_from_vals( FontScalablePtr vals, FTNormalisedTransformationPtr trans )
+{
+ /* Compute the transformation matrix. We use floating-point
+ arithmetic for simplicity */
+
+ trans->xres = vals->x;
+ trans->yres = vals->y;
+
+ /* This value cannot be 0. */
+ trans->scale = hypot(vals->point_matrix[2], vals->point_matrix[3]);
+ trans->nonIdentity = 0;
+
+ /* Try to round stuff. We want approximate zeros to be exact zeros,
+ and if the elements on the diagonal are approximately equal, we
+ want them equal. We do this to avoid breaking hinting. */
+ if(DIFFER(vals->point_matrix[0], vals->point_matrix[3])) {
+ trans->nonIdentity = 1;
+ trans->matrix.xx =
+ (int)((vals->point_matrix[0]*(double)TWO_SIXTEENTH)/trans->scale);
+ trans->matrix.yy =
+ (int)((vals->point_matrix[3]*(double)TWO_SIXTEENTH)/trans->scale);
+ } else {
+ trans->matrix.xx = trans->matrix.yy =
+ ((vals->point_matrix[0] + vals->point_matrix[3])/2*
+ (double)TWO_SIXTEENTH)/trans->scale;
+ }
+
+ if(DIFFER0(vals->point_matrix[1], trans->scale)) {
+ trans->matrix.yx =
+ (int)((vals->point_matrix[1]*(double)TWO_SIXTEENTH)/trans->scale);
+ trans->nonIdentity = 1;
+ } else
+ trans->matrix.yx = 0;
+
+ if(DIFFER0(vals->point_matrix[2], trans->scale)) {
+ trans->matrix.xy =
+ (int)((vals->point_matrix[2]*(double)TWO_SIXTEENTH)/trans->scale);
+ trans->nonIdentity = 1;
+ } else
+ trans->matrix.xy=0;
+ return 0;
+}
+
+
+static int
+is_fixed_width(FT_Face face)
+{
+ PS_FontInfoRec t1info_rec;
+ int ftrc;
+
+ if(FT_IS_FIXED_WIDTH(face)) {
+ return 1;
+ }
+
+ ftrc = FT_Get_PS_Font_Info(face, &t1info_rec);
+ if(ftrc == 0 && t1info_rec.is_fixed_pitch) {
+ return 1;
+ }
+
+ return 0;
+}
+
+static int
+FreeTypeLoadFont(FTFontPtr font, FontInfoPtr info, FTFacePtr face,
+ char *FTFileName, FontScalablePtr vals, FontEntryPtr entry,
+ FontBitmapFormatPtr bmfmt, FT_Int32 load_flags,
+ struct TTCapInfo *tmp_ttcap, char *dynStrTTCapCodeRange,
+ int ttcap_spacing )
+{
+ int xrc;
+ FTNormalisedTransformationRec trans;
+ int spacing, actual_spacing, zero_code;
+ long lastCode, firstCode;
+ TT_Postscript *post;
+
+ ft_get_trans_from_vals(vals,&trans);
+
+ /* Check for charcell in XLFD */
+ spacing = FT_PROPORTIONAL;
+ if(entry->name.ndashes == 14) {
+ char *p;
+ int dashes = 0;
+ for(p = entry->name.name;
+ p <= entry->name.name + entry->name.length - 2;
+ p++) {
+ if(*p == '-') {
+ dashes++;
+ if(dashes == 11) {
+ if(p[1]=='c' && p[2]=='-')
+ spacing=FT_CHARCELL;
+ else if(p[1]=='m' && p[2]=='-')
+ spacing=FT_MONOSPACED;
+ break;
+ }
+ }
+ }
+ }
+ /* by TTCap */
+ if( ttcap_spacing != 0 ) {
+ if( ttcap_spacing == 'c' ) spacing=FT_CHARCELL;
+ else if( ttcap_spacing == 'm' ) spacing=FT_MONOSPACED;
+ else spacing=FT_PROPORTIONAL;
+ }
+
+ actual_spacing = spacing;
+ if( spacing == FT_PROPORTIONAL ) {
+ if( is_fixed_width(face->face) )
+ actual_spacing = FT_MONOSPACED;
+ }
+
+ if(entry->name.ndashes == 14) {
+ xrc = FTPickMapping(entry->name.name, entry->name.length, FTFileName,
+ face->face, &font->mapping);
+ if (xrc != Successful)
+ return xrc;
+ } else {
+ xrc = FTPickMapping(0, 0, FTFileName,
+ face->face, &font->mapping);
+ if (xrc != Successful)
+ return xrc;
+ }
+
+ font->nranges = vals->nranges;
+ font->ranges = 0;
+ if(font->nranges) {
+ font->ranges = malloc(vals->nranges*sizeof(fsRange));
+ if(font->ranges == NULL)
+ return AllocError;
+ memcpy((char*)font->ranges, (char*)vals->ranges,
+ vals->nranges*sizeof(fsRange));
+ }
+
+ zero_code=-1;
+ if(info) {
+ firstCode = 0;
+ lastCode = 0xFFFFL;
+ if(!font->mapping.mapping ||
+ font->mapping.mapping->encoding->row_size == 0) {
+ /* linear indexing */
+ lastCode=MIN(lastCode,
+ font->mapping.mapping ?
+ font->mapping.mapping->encoding->size-1 :
+ 0xFF);
+ if(font->mapping.mapping && font->mapping.mapping->encoding->first)
+ firstCode = font->mapping.mapping->encoding->first;
+ info->firstRow = firstCode/0x100;
+ info->lastRow = lastCode/0x100;
+ info->firstCol =
+ (info->firstRow || info->lastRow) ? 0 : (firstCode & 0xFF);
+ info->lastCol = info->lastRow ? 0xFF : (lastCode & 0xFF);
+ if ( firstCode == 0 ) zero_code=0;
+ } else {
+ /* matrix indexing */
+ info->firstRow = font->mapping.mapping->encoding->first;
+ info->lastRow = MIN(font->mapping.mapping->encoding->size-1,
+ lastCode/0x100);
+ info->firstCol = font->mapping.mapping->encoding->first_col;
+ info->lastCol = MIN(font->mapping.mapping->encoding->row_size-1,
+ lastCode<0x100?lastCode:0xFF);
+ if( info->firstRow == 0 && info->firstCol == 0 ) zero_code=0;
+ }
+
+ /* firstCode and lastCode are not valid in case of a matrix
+ encoding */
+
+ if( dynStrTTCapCodeRange ) {
+ restrict_code_range_by_str(0,&info->firstCol, &info->firstRow,
+ &info->lastCol, &info->lastRow,
+ dynStrTTCapCodeRange);
+ }
+ restrict_code_range(&info->firstCol, &info->firstRow,
+ &info->lastCol, &info->lastRow,
+ font->ranges, font->nranges);
+ }
+ font->info = info;
+
+ /* zero code is frequently used. */
+ if ( zero_code < 0 ) {
+ /* The fontenc should have the information of DefaultCh.
+ But we do not have such a information.
+ So we cannot but set 0. */
+ font->zero_idx = 0;
+ }
+ else
+ font->zero_idx = FTRemap(face->face,
+ &font->mapping, zero_code);
+
+ post = FT_Get_Sfnt_Table(face->face, ft_sfnt_post);
+
+#ifdef DEFAULT_VERY_LAZY
+ if( !( tmp_ttcap->flags & TTCAP_DISABLE_DEFAULT_VERY_LAZY ) )
+ if( DEFAULT_VERY_LAZY <= 1 + info->lastRow - info->firstRow ) {
+ if( post ){
+ tmp_ttcap->flags |= TTCAP_IS_VERY_LAZY;
+ }
+ }
+#endif
+ /* We should always reset. */
+ tmp_ttcap->flags &= ~TTCAP_DISABLE_DEFAULT_VERY_LAZY;
+
+ if ( face->bitmap || actual_spacing == FT_CHARCELL )
+ tmp_ttcap->flags &= ~TTCAP_IS_VERY_LAZY;
+ /* "vl=y" is available when TrueType or OpenType only */
+ if ( !face->bitmap && !(FT_IS_SFNT( face->face )) )
+ tmp_ttcap->flags &= ~TTCAP_IS_VERY_LAZY;
+
+ if( post ) {
+ if( post->italicAngle != 0 )
+ tmp_ttcap->vl_slant = -sin( (post->italicAngle/1024./5760.)*1.57079632679489661923 );
+ /* fprintf(stderr,"angle=%g(%g)\n",tmp_ttcap->vl_slant,(post->italicAngle/1024./5760.)*90); */
+ }
+
+ xrc = FreeTypeOpenInstance(&font->instance, face,
+ FTFileName, &trans, actual_spacing, bmfmt,
+ tmp_ttcap, load_flags );
+ return xrc;
+}
+
+static void
+adjust_min_max(xCharInfo *minc, xCharInfo *maxc, xCharInfo *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);
+
+ 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
+ft_compute_bounds(FTFontPtr font, FontInfoPtr pinfo, FontScalablePtr vals )
+{
+ FTInstancePtr instance;
+ int row, col;
+ unsigned int c;
+ xCharInfo minchar, maxchar, *tmpchar = NULL;
+ int overlap, maxOverlap;
+ long swidth = 0;
+ long total_width = 0;
+ int num_cols, num_chars = 0;
+ int flags, skip_ok = 0;
+ int force_c_outside ;
+
+ instance = font->instance;
+ force_c_outside = instance->ttcap.flags & TTCAP_FORCE_C_OUTSIDE;
+
+ 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;
+ maxOverlap = -32767;
+
+ /* Parse all glyphs */
+ num_cols = 1 + pinfo->lastCol - pinfo->firstCol;
+ for (row = pinfo->firstRow; row <= pinfo->lastRow; row++) {
+ if ( skip_ok && tmpchar ) {
+ if ( !force_c_outside ) {
+ if ( instance->ttcap.forceConstantSpacingBegin < row<<8
+ && row<<8 < (instance->ttcap.forceConstantSpacingEnd & 0x0ff00) ) {
+ if (tmpchar->characterWidth) {
+ num_chars += num_cols;
+ swidth += ABS(tmpchar->characterWidth)*num_cols;
+ total_width += tmpchar->characterWidth*num_cols;
+ continue;
+ }
+ }
+ else skip_ok=0;
+ }
+ else { /* for GB18030 proportional */
+ if ( instance->ttcap.forceConstantSpacingBegin < row<<8
+ || row<<8 < (instance->ttcap.forceConstantSpacingEnd & 0x0ff00) ) {
+ if (tmpchar->characterWidth) {
+ num_chars += num_cols;
+ swidth += ABS(tmpchar->characterWidth)*num_cols;
+ total_width += tmpchar->characterWidth*num_cols;
+ continue;
+ }
+ }
+ else skip_ok=0;
+ }
+ }
+ for (col = pinfo->firstCol; col <= pinfo->lastCol; col++) {
+ c = row<<8|col;
+ flags=0;
+ if ( !force_c_outside ) {
+ if ( c <= instance->ttcap.forceConstantSpacingEnd
+ && instance->ttcap.forceConstantSpacingBegin <= c )
+ flags|=FT_FORCE_CONSTANT_SPACING;
+ }
+ else { /* for GB18030 proportional */
+ if ( c <= instance->ttcap.forceConstantSpacingEnd
+ || instance->ttcap.forceConstantSpacingBegin <= c )
+ flags|=FT_FORCE_CONSTANT_SPACING;
+ }
+#if 0
+ fprintf(stderr, "comp_bounds: %x ->", c);
+#endif
+ if ( skip_ok == 0 || flags == 0 ){
+ tmpchar=NULL;
+#if 0
+ fprintf(stderr, "%x\n", c);
+#endif
+ if( FreeTypeFontGetGlyphMetrics(c, flags, &tmpchar, font) != Successful )
+ continue;
+ }
+ if ( !tmpchar ) continue;
+ adjust_min_max(&minchar, &maxchar, tmpchar);
+ overlap = tmpchar->rightSideBearing - tmpchar->characterWidth;
+ if (maxOverlap < overlap)
+ maxOverlap = overlap;
+
+ if (!tmpchar->characterWidth)
+ continue;
+ num_chars++;
+ swidth += ABS(tmpchar->characterWidth);
+ total_width += tmpchar->characterWidth;
+
+ if ( flags & FT_FORCE_CONSTANT_SPACING ) skip_ok=1;
+ }
+ }
+
+#ifndef X_ACCEPTS_NO_SUCH_CHAR
+ /* Check code 0 */
+ if( FreeTypeInstanceGetGlyphMetrics(font->zero_idx, 0, &tmpchar, font->instance) != Successful || tmpchar == NULL)
+ if( FreeTypeInstanceGetGlyphMetrics(font->zero_idx, FT_GET_DUMMY, &tmpchar, font->instance) != Successful )
+ tmpchar = NULL;
+ if ( tmpchar ) {
+ adjust_min_max(&minchar, &maxchar, tmpchar);
+ overlap = tmpchar->rightSideBearing - tmpchar->characterWidth;
+ if (maxOverlap < overlap)
+ maxOverlap = overlap;
+ }
+#endif
+
+ /* AVERAGE_WIDTH ... 1/10 pixel unit */
+ if (num_chars > 0) {
+ swidth = (swidth * 10.0 + num_chars / 2.0) / num_chars;
+ if (total_width < 0)
+ swidth = -swidth;
+ vals->width = swidth;
+ } else
+ vals->width = 0;
+
+ /*
+ if (char_width.pixel) {
+ maxchar.characterWidth = char_width.pixel;
+ minchar.characterWidth = char_width.pixel;
+ }
+ */
+
+ pinfo->maxbounds = maxchar;
+ pinfo->minbounds = minchar;
+ pinfo->ink_maxbounds = maxchar;
+ pinfo->ink_minbounds = minchar;
+ pinfo->maxOverlap = maxOverlap;
+}
+
+static int
+compute_new_extents( FontScalablePtr vals, double scale, double lsb, double rsb, double desc, double asc,
+ int *lsb_result, int *rsb_result, int *desc_result, int *asc_result )
+{
+#define TRANSFORM_POINT(matrix, x, y, dest) \
+ ((dest)[0] = (matrix)[0] * (x) + (matrix)[2] * (y), \
+ (dest)[1] = (matrix)[1] * (x) + (matrix)[3] * (y))
+
+#define CHECK_EXTENT(lsb, rsb, desc, asc, data) \
+ ((lsb) > (data)[0] ? (lsb) = (data)[0] : 0 , \
+ (rsb) < (data)[0] ? (rsb) = (data)[0] : 0, \
+ (-desc) > (data)[1] ? (desc) = -(data)[1] : 0 , \
+ (asc) < (data)[1] ? (asc) = (data)[1] : 0)
+ double newlsb, newrsb, newdesc, newasc;
+ double point[2];
+
+ /* Compute new extents for this glyph */
+ TRANSFORM_POINT(vals->pixel_matrix, lsb, -desc, point);
+ newlsb = point[0];
+ newrsb = newlsb;
+ newdesc = -point[1];
+ newasc = -newdesc;
+ TRANSFORM_POINT(vals->pixel_matrix, lsb, asc, point);
+ CHECK_EXTENT(newlsb, newrsb, newdesc, newasc, point);
+ TRANSFORM_POINT(vals->pixel_matrix, rsb, -desc, point);
+ CHECK_EXTENT(newlsb, newrsb, newdesc, newasc, point);
+ TRANSFORM_POINT(vals->pixel_matrix, rsb, asc, point);
+ CHECK_EXTENT(newlsb, newrsb, newdesc, newasc, point);
+
+ /* ???: lsb = (int)floor(newlsb * scale); */
+ *lsb_result = (int)floor(newlsb * scale + 0.5);
+ *rsb_result = (int)floor(newrsb * scale + 0.5);
+ *desc_result = (int)ceil(newdesc * scale - 0.5);
+ *asc_result = (int)floor(newasc * scale + 0.5);
+
+ return 0;
+#undef CHECK_EXTENT
+#undef TRANSFORM_POINT
+}
+
+static int
+is_matrix_unit(FontScalablePtr vals)
+{
+ double base_size;
+ FT_Matrix m;
+
+ base_size = hypot(vals->point_matrix[2], vals->point_matrix[3]);
+
+ m.xx = vals->point_matrix[0] / base_size * 65536;
+ m.xy = vals->point_matrix[2] / base_size * 65536;
+ m.yx = vals->point_matrix[1] / base_size * 65536;
+ m.yy = vals->point_matrix[3] / base_size * 65536;
+
+ return (m.xx == 65536) && (m.yx == 0) &&
+ (m.xy == 0) && (m.yy == 65536);
+}
+
+/* Do all the real work for OpenFont or FontInfo */
+/* xf->info is only accessed through info, and xf might be null */
+
+static int
+FreeTypeLoadXFont(char *fileName,
+ FontScalablePtr vals, FontPtr xf, FontInfoPtr info,
+ FontBitmapFormatPtr bmfmt, FontEntryPtr entry)
+{
+ FTFontPtr font = NULL;
+ FTFacePtr face = NULL;
+ FTInstancePtr instance;
+ FT_Size_Metrics *smetrics;
+ int xrc=Successful;
+ int charcell;
+ long rawWidth = 0, rawAverageWidth = 0;
+ int upm, minLsb, maxRsb, ascent, descent, width, averageWidth;
+ double scale, base_width, base_height;
+ Bool orig_is_matrix_unit, font_properties;
+ int face_number, ttcap_spacing;
+ struct TTCapInfo tmp_ttcap;
+ struct TTCapInfo *ins_ttcap;
+ FT_Int32 load_flags = FT_LOAD_DEFAULT; /* orig: FT_LOAD_RENDER | FT_LOAD_MONOCHROME */
+ char *dynStrRealFileName = NULL; /* foo.ttc */
+ char *dynStrFTFileName = NULL; /* :1:foo.ttc */
+ char *dynStrTTCapCodeRange = NULL;
+
+ font = calloc(1, sizeof(FTFontRec));
+ if(font == NULL) {
+ xrc = AllocError;
+ goto quit;
+ }
+
+ xrc = FreeTypeSetUpTTCap(fileName, vals,
+ &dynStrRealFileName, &dynStrFTFileName,
+ &tmp_ttcap, &face_number,
+ &load_flags, &ttcap_spacing,
+ &font_properties, &dynStrTTCapCodeRange);
+ if ( xrc != Successful ) {
+ goto quit;
+ }
+
+ xrc = FreeTypeOpenFace(&face, dynStrFTFileName, dynStrRealFileName, face_number);
+ if(xrc != Successful) {
+ goto quit;
+ }
+
+ if( is_matrix_unit(vals) )
+ orig_is_matrix_unit = True;
+ else {
+ orig_is_matrix_unit = False;
+ /* Turn off EmbeddedBitmap when original matrix is not diagonal. */
+ load_flags |= FT_LOAD_NO_BITMAP;
+ }
+
+ if( face->bitmap ) load_flags &= ~FT_LOAD_NO_BITMAP;
+
+ /* Slant control by TTCap */
+ if(!face->bitmap) {
+ vals->pixel_matrix[2] +=
+ vals->pixel_matrix[0] * tmp_ttcap.autoItalic;
+ vals->point_matrix[2] +=
+ vals->point_matrix[0] * tmp_ttcap.autoItalic;
+ vals->pixel_matrix[3] +=
+ vals->pixel_matrix[1] * tmp_ttcap.autoItalic;
+ vals->point_matrix[3] +=
+ vals->point_matrix[1] * tmp_ttcap.autoItalic;
+ }
+
+ base_width=hypot(vals->pixel_matrix[0], vals->pixel_matrix[1]);
+ base_height=hypot(vals->pixel_matrix[2], vals->pixel_matrix[3]);
+ if(MAX(base_width, base_height) < 1.0 ) {
+ xrc = BadFontName;
+ goto quit;
+ }
+
+ xrc = FreeTypeLoadFont(font, info, face, dynStrFTFileName, vals, entry, bmfmt,
+ load_flags, &tmp_ttcap, dynStrTTCapCodeRange,
+ ttcap_spacing );
+ if(xrc != Successful) {
+ goto quit;
+ }
+
+ instance = font->instance;
+ smetrics = &instance->size->metrics;
+ ins_ttcap = &instance->ttcap;
+
+ upm = face->face->units_per_EM;
+ if(upm == 0) {
+ /* Work around FreeType bug */
+ upm = WORK_AROUND_UPM;
+ }
+ scale = 1.0 / upm;
+
+ charcell = (instance->spacing == FT_CHARCELL);
+
+ if( instance->charcellMetrics == NULL ) {
+
+ /* New instance */
+
+ long force_c_rawWidth = 0;
+ int force_c_lsb,force_c_rsb,force_c_width;
+ double unit_x=0,unit_y=0,advance;
+ CharInfoPtr tmpglyph;
+
+ /*
+ * CALCULATE HEADER'S METRICS
+ */
+
+ /* for OUTLINE fonts */
+ if(!face->bitmap) {
+ int new_width;
+ double ratio,force_c_ratio;
+ double width_x=0,width_y=0;
+ double force_c_width_x, force_c_rsb_x, force_c_lsb_x;
+ double tmp_rsb,tmp_lsb,tmp_asc,tmp_des;
+ double max_advance_height;
+ tmp_asc = face->face->bbox.yMax;
+ tmp_des = -(face->face->bbox.yMin);
+ if ( tmp_asc < face->face->ascender ) tmp_asc = face->face->ascender;
+ if ( tmp_des < -(face->face->descender) ) tmp_des = -(face->face->descender);
+ tmp_lsb = face->face->bbox.xMin;
+ tmp_rsb = face->face->bbox.xMax;
+ if ( tmp_rsb < face->face->max_advance_width ) tmp_rsb = face->face->max_advance_width;
+ /* apply scaleBBoxWidth */
+ /* we should not ...??? */
+ tmp_lsb *= ins_ttcap->scaleBBoxWidth;
+ tmp_rsb *= ins_ttcap->scaleBBoxWidth;
+ /* transform and rescale */
+ compute_new_extents( vals, scale, tmp_lsb, tmp_rsb, tmp_des, tmp_asc,
+ &minLsb, &maxRsb, &descent, &ascent );
+ /* */
+ /* Consider vertical layouts */
+ if( 0 < face->face->max_advance_height )
+ max_advance_height = face->face->max_advance_height;
+ else
+ max_advance_height = tmp_asc + tmp_des;
+ if( vals->pixel_matrix[1] == 0 ){
+ unit_x = fabs(vals->pixel_matrix[0]);
+ unit_y = 0;
+ width_x = face->face->max_advance_width * ins_ttcap->scaleBBoxWidth * unit_x;
+ }
+ else if( vals->pixel_matrix[3] == 0 ){
+ unit_y = fabs(vals->pixel_matrix[2]);
+ unit_x = 0;
+ width_x = max_advance_height * ins_ttcap->scaleBBoxHeight * unit_y;
+ }
+ else{
+ unit_x = fabs(vals->pixel_matrix[0] -
+ vals->pixel_matrix[1]*vals->pixel_matrix[2]/vals->pixel_matrix[3]);
+ unit_y = fabs(vals->pixel_matrix[2] -
+ vals->pixel_matrix[3]*vals->pixel_matrix[0]/vals->pixel_matrix[1]);
+ width_x = face->face->max_advance_width * ins_ttcap->scaleBBoxWidth * unit_x;
+ width_y = max_advance_height * ins_ttcap->scaleBBoxHeight * unit_y;
+ if( width_y < width_x ){
+ width_x = width_y;
+ unit_x = 0;
+ }
+ else{
+ unit_y = 0;
+ }
+ }
+ /* calculate correction ratio */
+ width = (int)floor( (advance = width_x * scale) + 0.5);
+ new_width = width;
+ if( ins_ttcap->flags & TTCAP_DOUBLE_STRIKE_CORRECT_B_BOX_WIDTH )
+ new_width += ins_ttcap->doubleStrikeShift;
+ new_width += ins_ttcap->adjustBBoxWidthByPixel;
+ ratio = (double)new_width/width;
+ width = new_width;
+ /* force constant */
+ if( unit_x != 0 ) {
+ force_c_width_x = face->face->max_advance_width
+ * ins_ttcap->force_c_scale_b_box_width * unit_x;
+ force_c_lsb_x = face->face->max_advance_width
+ * ins_ttcap->force_c_scale_lsb * unit_x;
+ force_c_rsb_x = face->face->max_advance_width
+ * ins_ttcap->force_c_scale_rsb * unit_x;
+ }
+ else {
+ force_c_width_x = max_advance_height
+ * ins_ttcap->force_c_scale_b_box_height * unit_y;
+ force_c_lsb_x = max_advance_height
+ * ins_ttcap->force_c_scale_lsb * unit_y;
+ force_c_rsb_x = max_advance_height
+ * ins_ttcap->force_c_scale_rsb * unit_y;
+ }
+ /* calculate correction ratio */
+ force_c_width = (int)floor(force_c_width_x * scale + 0.5);
+ new_width = force_c_width;
+ if( ins_ttcap->flags & TTCAP_DOUBLE_STRIKE_CORRECT_B_BOX_WIDTH )
+ force_c_width += ins_ttcap->doubleStrikeShift;
+ new_width += ins_ttcap->force_c_adjust_width_by_pixel;
+ force_c_ratio = (double)new_width/force_c_width;
+ force_c_width = new_width;
+ /* force_c_lsb, force_c_rsb */
+ if( ins_ttcap->flags & TTCAP_FORCE_C_LSB_FLAG )
+ force_c_lsb = (int)floor( force_c_lsb_x * scale + 0.5 );
+ else
+ force_c_lsb = minLsb;
+ if( ins_ttcap->flags & TTCAP_FORCE_C_RSB_FLAG )
+ force_c_rsb = (int)floor( force_c_rsb_x * scale + 0.5 );
+ else
+ force_c_rsb = maxRsb;
+ /* calculate shift of BitmapAutoItalic
+ (when diagonal matrix only) */
+ if( orig_is_matrix_unit == True ) {
+ if( ins_ttcap->autoItalic != 0 ) {
+ double ai;
+ int ai_lsb,ai_rsb,ai_total;
+ if( 0 < ins_ttcap->autoItalic ) ai=ins_ttcap->autoItalic;
+ else ai = -ins_ttcap->autoItalic;
+ ai_total = (int)( (ascent+descent) * ai + 0.5);
+ ai_rsb = (int)((double)ai_total * ascent / ( ascent + descent ) + 0.5 );
+ ai_lsb = -(ai_total - ai_rsb);
+ if( 0 < ins_ttcap->autoItalic ) {
+ ins_ttcap->lsbShiftOfBitmapAutoItalic = ai_lsb;
+ ins_ttcap->rsbShiftOfBitmapAutoItalic = ai_rsb;
+ }
+ else {
+ ins_ttcap->lsbShiftOfBitmapAutoItalic = -ai_rsb;
+ ins_ttcap->rsbShiftOfBitmapAutoItalic = -ai_lsb;
+ }
+ }
+ }
+ /* integer adjustment by TTCap */
+ if( ins_ttcap->flags & TTCAP_DOUBLE_STRIKE )
+ maxRsb += ins_ttcap->doubleStrikeShift;
+ maxRsb += ins_ttcap->adjustRightSideBearingByPixel;
+ minLsb += ins_ttcap->adjustLeftSideBearingByPixel;
+ /* */
+ if( ins_ttcap->flags & TTCAP_DOUBLE_STRIKE )
+ force_c_rsb += ins_ttcap->doubleStrikeShift;
+ force_c_rsb += ins_ttcap->force_c_adjust_rsb_by_pixel;
+ force_c_lsb += ins_ttcap->force_c_adjust_lsb_by_pixel;
+ /* apply to rawWidth */
+ averageWidth = (int)floor(10 * width_x * scale
+ * ratio + 0.5);
+ rawWidth = floor(width_x * scale
+ * ratio * 1000. / base_height + 0.5);
+ rawAverageWidth = floor(width_x * scale * ratio * 10.
+ * 1000. / base_height + 0.5);
+ force_c_rawWidth = floor(force_c_width_x * scale
+ * force_c_ratio * 1000. / base_height + 0.5);
+ /* */
+ }
+ /* for BITMAP fonts [if(face->bitmap)] */
+ else {
+ /* These values differ from actual when outline,
+ so we must use them ONLY FOR BITMAP. */
+ width = (int)floor(smetrics->max_advance * ins_ttcap->scaleBBoxWidth / 64.0 + .5);
+ descent = -smetrics->descender / 64;
+ ascent = smetrics->ascender / 64;
+ /* force constant */
+ force_c_width = (int)floor(smetrics->max_advance
+ * ins_ttcap->force_c_scale_b_box_width / 64.0 + .5);
+ /* Preserve average width for bitmap fonts */
+ if(vals->width != 0)
+ averageWidth = (int)floor(vals->width * ins_ttcap->scaleBBoxWidth +.5);
+ else
+ averageWidth = (int)floor(10.0 * smetrics->max_advance
+ * ins_ttcap->scaleBBoxWidth / 64.0 + .5);
+ rawWidth = 0;
+ rawAverageWidth = 0;
+ force_c_rawWidth = 0;
+ /* We don't consider vertical layouts */
+ advance = (int)floor(smetrics->max_advance / 64.0 +.5);
+ unit_x = vals->pixel_matrix[0];
+ unit_y = 0;
+ /* We can use 'width' only when bitmap.
+ This should not be set when outline. */
+ minLsb = 0;
+ maxRsb = width;
+ /* force constant */
+ if( ins_ttcap->flags & TTCAP_FORCE_C_LSB_FLAG )
+ force_c_lsb = (int)floor(smetrics->max_advance
+ * ins_ttcap->force_c_scale_lsb / 64.0 + .5);
+ else
+ force_c_lsb = minLsb;
+ if( ins_ttcap->flags & TTCAP_FORCE_C_RSB_FLAG )
+ force_c_rsb = (int)floor(smetrics->max_advance
+ * ins_ttcap->force_c_scale_rsb / 64.0 + .5);
+ else
+ force_c_rsb = maxRsb;
+ /* calculate shift of BitmapAutoItalic */
+ if( ins_ttcap->autoItalic != 0 ) {
+ double ai;
+ int ai_lsb,ai_rsb,ai_total;
+ if( 0 < ins_ttcap->autoItalic ) ai=ins_ttcap->autoItalic;
+ else ai = -ins_ttcap->autoItalic;
+ ai_total = (int)( (ascent+descent) * ai + 0.5);
+ ai_rsb = (int)((double)ai_total * ascent / ( ascent + descent ) + 0.5 );
+ ai_lsb = -(ai_total - ai_rsb);
+ if( 0 < ins_ttcap->autoItalic ) {
+ ins_ttcap->lsbShiftOfBitmapAutoItalic = ai_lsb;
+ ins_ttcap->rsbShiftOfBitmapAutoItalic = ai_rsb;
+ }
+ else {
+ ins_ttcap->lsbShiftOfBitmapAutoItalic = -ai_rsb;
+ ins_ttcap->rsbShiftOfBitmapAutoItalic = -ai_lsb;
+ }
+ }
+ /* integer adjustment by TTCap */
+ if( ins_ttcap->flags & TTCAP_DOUBLE_STRIKE_CORRECT_B_BOX_WIDTH )
+ width += ins_ttcap->doubleStrikeShift;
+ if( ins_ttcap->flags & TTCAP_DOUBLE_STRIKE )
+ maxRsb += ins_ttcap->doubleStrikeShift;
+ maxRsb += ins_ttcap->adjustRightSideBearingByPixel;
+ minLsb += ins_ttcap->adjustLeftSideBearingByPixel;
+ /* We have not carried out matrix calculation, so this is done. */
+ maxRsb += ins_ttcap->rsbShiftOfBitmapAutoItalic;
+ minLsb += ins_ttcap->lsbShiftOfBitmapAutoItalic;
+ /* force constant */
+ if( ins_ttcap->flags & TTCAP_DOUBLE_STRIKE )
+ force_c_rsb += ins_ttcap->doubleStrikeShift;
+ force_c_rsb += ins_ttcap->force_c_adjust_rsb_by_pixel;
+ force_c_lsb += ins_ttcap->force_c_adjust_lsb_by_pixel;
+ force_c_rsb += ins_ttcap->rsbShiftOfBitmapAutoItalic;
+ force_c_lsb += ins_ttcap->lsbShiftOfBitmapAutoItalic;
+ }
+
+ /* SET CALCULATED VALUES TO INSTANCE */
+
+ /* Set actual height and cosine */
+ instance->pixel_size = base_height;
+ instance->advance = advance;
+ if ( unit_x != 0 ){
+ instance->pixel_width_unit_x = unit_x/base_height;
+ instance->pixel_width_unit_y = 0;
+ }
+ else{
+ instance->pixel_width_unit_x = 0;
+ instance->pixel_width_unit_y = unit_y/base_height;
+ }
+
+ /* header's metrics */
+ instance->charcellMetrics = malloc(sizeof(xCharInfo));
+ if(instance->charcellMetrics == NULL) {
+ xrc = AllocError;
+ goto quit;
+ }
+ instance->charcellMetrics->ascent = ascent;
+ instance->charcellMetrics->descent = descent;
+ instance->charcellMetrics->attributes = rawWidth;
+ instance->charcellMetrics->rightSideBearing = maxRsb;
+ instance->charcellMetrics->leftSideBearing = minLsb;
+ instance->charcellMetrics->characterWidth = width;
+ instance->averageWidth = averageWidth;
+ instance->rawAverageWidth = rawAverageWidth;
+
+ /* Check code 0 */
+ if( FreeTypeInstanceGetGlyph(font->zero_idx, 0, &tmpglyph, font->instance) != Successful
+ || tmpglyph == NULL)
+ if( FreeTypeInstanceGetGlyph(font->zero_idx, FT_GET_DUMMY, &tmpglyph, font->instance)
+ != Successful )
+ tmpglyph = NULL;
+ if ( !tmpglyph ) {
+ xrc = AllocError;
+ goto quit;
+ }
+
+ /* FORCE CONSTANT METRICS */
+ if( 0 <= ins_ttcap->forceConstantSpacingEnd ) {
+ xCharInfo *tmpchar = NULL;
+ int c = ins_ttcap->force_c_representative_metrics_char_code;
+ /* header's metrics */
+ if( instance->forceConstantMetrics == NULL ){
+ instance->forceConstantMetrics = malloc(sizeof(xCharInfo));
+ if(instance->forceConstantMetrics == NULL) {
+ xrc = AllocError;
+ goto quit;
+ }
+ }
+ /* Get Representative Metrics */
+ if ( 0 <= c ) {
+ if( FreeTypeFontGetGlyphMetrics(c, 0, &tmpchar, font) != Successful )
+ tmpchar = NULL;
+ }
+ if ( tmpchar && 0 < tmpchar->characterWidth ) {
+ instance->forceConstantMetrics->leftSideBearing = tmpchar->leftSideBearing;
+ instance->forceConstantMetrics->rightSideBearing = tmpchar->rightSideBearing;
+ instance->forceConstantMetrics->characterWidth = tmpchar->characterWidth;
+ instance->forceConstantMetrics->ascent = tmpchar->ascent;
+ instance->forceConstantMetrics->descent = tmpchar->descent;
+ instance->forceConstantMetrics->attributes = tmpchar->attributes;
+ }
+ else {
+ instance->forceConstantMetrics->leftSideBearing = force_c_lsb;
+ instance->forceConstantMetrics->rightSideBearing = force_c_rsb;
+ instance->forceConstantMetrics->characterWidth = force_c_width;
+ instance->forceConstantMetrics->ascent = ascent;
+ instance->forceConstantMetrics->descent = descent;
+ instance->forceConstantMetrics->attributes = force_c_rawWidth;
+ }
+ /* Check code 0 */
+ if( FreeTypeInstanceGetGlyph(font->zero_idx, FT_FORCE_CONSTANT_SPACING,
+ &tmpglyph, font->instance) != Successful
+ || tmpglyph == NULL)
+ if( FreeTypeInstanceGetGlyph(font->zero_idx, FT_FORCE_CONSTANT_SPACING | FT_GET_DUMMY,
+ &tmpglyph, font->instance)
+ != Successful )
+ tmpglyph = NULL;
+ if ( !tmpglyph ) {
+ xrc = AllocError;
+ goto quit;
+ }
+ }
+ }
+ else{
+
+ /*
+ * CACHED VALUES
+ */
+
+ width = instance->charcellMetrics->characterWidth;
+ ascent = instance->charcellMetrics->ascent;
+ descent = instance->charcellMetrics->descent;
+ rawWidth = instance->charcellMetrics->attributes;
+ maxRsb = instance->charcellMetrics->rightSideBearing;
+ minLsb = instance->charcellMetrics->leftSideBearing;
+ averageWidth = instance->averageWidth;
+ rawAverageWidth = instance->rawAverageWidth;
+
+ }
+
+ /*
+ * SET maxbounds, minbounds ...
+ */
+
+ if( !charcell ) { /* NOT CHARCELL */
+ if( info ){
+ /*
+ Calculate all glyphs' metrics.
+ maxbounds.ascent and maxbounds.descent are quite important values
+ for XAA. If ascent/descent of each glyph exceeds
+ maxbounds.ascent/maxbounds.descent, XAA causes SERVER CRASH.
+ Therefore, THIS MUST BE DONE.
+ */
+ ft_compute_bounds(font,info,vals);
+ }
+ }
+ else{ /* CHARCELL */
+
+ /*
+ * SET CALCULATED OR CACHED VARIABLES
+ */
+
+ vals->width = averageWidth;
+
+ if( info ){
+
+ info->maxbounds.leftSideBearing = minLsb;
+ info->maxbounds.rightSideBearing = maxRsb;
+ info->maxbounds.characterWidth = width;
+ info->maxbounds.ascent = ascent;
+ info->maxbounds.descent = descent;
+ info->maxbounds.attributes =
+ (unsigned short)(short)rawWidth;
+
+ info->minbounds = info->maxbounds;
+ }
+ }
+
+ /* set info */
+
+ if( info ){
+ /*
+ info->fontAscent = ascent;
+ info->fontDescent = descent;
+ */
+ info->fontAscent = info->maxbounds.ascent;
+ info->fontDescent = info->maxbounds.descent;
+ /* Glyph metrics are accurate */
+ info->inkMetrics=1;
+
+ memcpy((char *)&info->ink_maxbounds,
+ (char *)&info->maxbounds, sizeof(xCharInfo));
+ memcpy((char *)&info->ink_minbounds,
+ (char *)&info->minbounds, sizeof(xCharInfo));
+
+ /* XXX - hack */
+ info->defaultCh=0;
+
+ /* Set the pInfo flags */
+ /* Properties set by FontComputeInfoAccelerators:
+ pInfo->noOverlap;
+ pInfo->terminalFont;
+ pInfo->constantMetrics;
+ pInfo->constantWidth;
+ pInfo->inkInside;
+ */
+ /* from lib/font/util/fontaccel.c */
+ FontComputeInfoAccelerators(info);
+ }
+
+ if(xf)
+ xf->fontPrivate = (void*)font;
+
+ if(info) {
+ xrc = FreeTypeAddProperties(font, vals, info, entry->name.name,
+ rawAverageWidth, font_properties);
+ if (xrc != Successful) {
+ goto quit;
+ }
+ }
+
+ quit:
+ if ( dynStrTTCapCodeRange ) free(dynStrTTCapCodeRange);
+ if ( dynStrFTFileName ) free(dynStrFTFileName);
+ if ( dynStrRealFileName ) free(dynStrRealFileName);
+ if ( xrc != Successful ) {
+ if( font ){
+ if( face && font->instance == NULL ) FreeTypeFreeFace(face);
+ FreeTypeFreeFont(font);
+ }
+ }
+ return xrc;
+}
+
+/* Routines used by X11 to get info and glyphs from the font. */
+
+static int
+FreeTypeGetMetrics(FontPtr pFont, unsigned long count, unsigned char *chars,
+ FontEncoding charEncoding, unsigned long *metricCount,
+ xCharInfo **metrics)
+{
+ unsigned int code = 0;
+ int flags = 0;
+ FTFontPtr tf;
+ struct TTCapInfo *ttcap;
+ xCharInfo **mp, *m;
+
+ /* MUMBLE("Get metrics for %ld characters\n", count);*/
+
+ tf = (FTFontPtr)pFont->fontPrivate;
+ ttcap = &tf->instance->ttcap;
+ mp = metrics;
+
+ while (count-- > 0) {
+ switch (charEncoding) {
+ case Linear8Bit:
+ case TwoD8Bit:
+ code = *chars++;
+ break;
+ case Linear16Bit:
+ case TwoD16Bit:
+ code = (*chars++ << 8);
+ code |= *chars++;
+ /* */
+ if ( !(ttcap->flags & TTCAP_FORCE_C_OUTSIDE) ) {
+ if ( (int)code <= ttcap->forceConstantSpacingEnd
+ && ttcap->forceConstantSpacingBegin <= (int)code )
+ flags|=FT_FORCE_CONSTANT_SPACING;
+ else flags=0;
+ }
+ else { /* for GB18030 proportional */
+ if ( (int)code <= ttcap->forceConstantSpacingEnd
+ || ttcap->forceConstantSpacingBegin <= (int)code )
+ flags|=FT_FORCE_CONSTANT_SPACING;
+ else flags=0;
+ }
+ break;
+ }
+
+ if(FreeTypeFontGetGlyphMetrics(code, flags, &m, tf) == Successful && m!=NULL) {
+ *mp++ = m;
+ }
+#ifdef X_ACCEPTS_NO_SUCH_CHAR
+ else *mp++ = &noSuchChar.metrics;
+#endif
+ }
+
+ *metricCount = mp - metrics;
+ return Successful;
+}
+
+static int
+FreeTypeGetGlyphs(FontPtr pFont, unsigned long count, unsigned char *chars,
+ FontEncoding charEncoding, unsigned long *glyphCount,
+ CharInfoPtr *glyphs)
+{
+ unsigned int code = 0;
+ int flags = 0;
+ FTFontPtr tf;
+ CharInfoPtr *gp;
+ CharInfoPtr g;
+ struct TTCapInfo *ttcap;
+
+ tf = (FTFontPtr)pFont->fontPrivate;
+ ttcap = &tf->instance->ttcap;
+ gp = glyphs;
+
+ while (count-- > 0) {
+ switch (charEncoding) {
+ case Linear8Bit: case TwoD8Bit:
+ code = *chars++;
+ break;
+ case Linear16Bit: case TwoD16Bit:
+ code = *chars++ << 8;
+ code |= *chars++;
+ /* */
+ if ( !(ttcap->flags & TTCAP_FORCE_C_OUTSIDE) ) {
+ if ( (int)code <= ttcap->forceConstantSpacingEnd
+ && ttcap->forceConstantSpacingBegin <= (int)code )
+ flags|=FT_FORCE_CONSTANT_SPACING;
+ else flags=0;
+ }
+ else { /* for GB18030 proportional */
+ if ( (int)code <= ttcap->forceConstantSpacingEnd
+ || ttcap->forceConstantSpacingBegin <= (int)code )
+ flags|=FT_FORCE_CONSTANT_SPACING;
+ else flags=0;
+ }
+ break;
+ }
+
+ if(FreeTypeFontGetGlyph(code, flags, &g, tf) == Successful && g!=NULL) {
+ *gp++ = g;
+ }
+#ifdef X_ACCEPTS_NO_SUCH_CHAR
+ else {
+#ifdef XAA_ACCEPTS_NULL_BITS
+ *gp++ = &noSuchChar;
+#else
+ if ( tf->dummy_char.bits ) {
+ *gp++ = &tf->dummy_char;
+ }
+ else {
+ char *raster = NULL;
+ int wd_actual, ht_actual, wd, ht, bpr;
+ wd_actual = tf->info->maxbounds.rightSideBearing - tf->info->maxbounds.leftSideBearing;
+ ht_actual = tf->info->maxbounds.ascent + tf->info->maxbounds.descent;
+ if(wd_actual <= 0) wd = 1;
+ else wd=wd_actual;
+ if(ht_actual <= 0) ht = 1;
+ else ht=ht_actual;
+ bpr = (((wd + (tf->instance->bmfmt.glyph<<3) - 1) >> 3) &
+ -tf->instance->bmfmt.glyph);
+ raster = calloc(1, ht * bpr);
+ if(raster) {
+ tf->dummy_char.bits = raster;
+ *gp++ = &tf->dummy_char;
+ }
+ }
+#endif
+ }
+#endif
+ }
+
+ *glyphCount = gp - glyphs;
+ return Successful;
+}
+
+static int
+FreeTypeSetUpFont(FontPathElementPtr fpe, FontPtr xf, FontInfoPtr info,
+ fsBitmapFormat format, fsBitmapFormatMask fmask,
+ FontBitmapFormatPtr bmfmt)
+{
+ int xrc;
+ int image;
+
+ /* Get the default bitmap format information for this X installation.
+ Also update it for the client if running in the font server. */
+ FontDefaultFormat(&bmfmt->bit, &bmfmt->byte, &bmfmt->glyph, &bmfmt->scan);
+ if ((xrc = CheckFSFormat(format, fmask, &bmfmt->bit, &bmfmt->byte,
+ &bmfmt->scan, &bmfmt->glyph,
+ &image)) != Successful) {
+ MUMBLE("Aborting after checking FS format: %d\n", xrc);
+ return xrc;
+ }
+
+ if(xf) {
+ xf->refcnt = 0;
+ xf->bit = bmfmt->bit;
+ xf->byte = bmfmt->byte;
+ xf->glyph = bmfmt->glyph;
+ xf->scan = bmfmt->scan;
+ xf->format = format;
+ xf->get_glyphs = FreeTypeGetGlyphs;
+ xf->get_metrics = FreeTypeGetMetrics;
+ xf->unload_font = FreeTypeUnloadXFont;
+ xf->unload_glyphs = 0;
+ xf->fpe = fpe;
+ xf->svrPrivate = 0;
+ xf->fontPrivate = 0; /* we'll set it later */
+ xf->fpePrivate = 0;
+ }
+
+ info->defaultCh = 0;
+ info->noOverlap = 0; /* not updated */
+ info->terminalFont = 0; /* not updated */
+ info->constantMetrics = 0; /* we'll set it later */
+ info->constantWidth = 0; /* we'll set it later */
+ info->inkInside = 1;
+ info->inkMetrics = 1;
+ info->allExist=0; /* not updated */
+ info->drawDirection = LeftToRight; /* we'll set it later */
+ info->cachable = 1; /* we don't do licensing */
+ info->anamorphic = 0; /* can hinting lead to anamorphic scaling? */
+ info->maxOverlap = 0; /* we'll set it later. */
+ info->pad = 0; /* ??? */
+ return Successful;
+}
+
+/* Functions exported by the backend */
+
+static int
+FreeTypeOpenScalable(FontPathElementPtr fpe, FontPtr *ppFont, int flags,
+ FontEntryPtr entry, char *fileName, FontScalablePtr vals,
+ fsBitmapFormat format, fsBitmapFormatMask fmask,
+ FontPtr non_cachable_font)
+{
+ int xrc;
+ FontPtr xf;
+ FontBitmapFormatRec bmfmt;
+
+ MUMBLE("Open Scalable %s, XLFD=%s\n",fileName, entry->name.length ? entry->name.name : "");
+
+ xf = CreateFontRec();
+ if (xf == NULL)
+ return AllocError;
+
+ xrc = FreeTypeSetUpFont(fpe, xf, &xf->info, format, fmask, &bmfmt);
+ if(xrc != Successful) {
+ DestroyFontRec(xf);
+ return xrc;
+ }
+ xrc = FreeTypeLoadXFont(fileName, vals, xf, &xf->info, &bmfmt, entry);
+ if(xrc != Successful) {
+ MUMBLE("Error during load: %d\n",xrc);
+ DestroyFontRec(xf);
+ return xrc;
+ }
+
+ *ppFont = xf;
+
+ return xrc;
+}
+
+/* Routine to get requested font info. */
+
+static int
+FreeTypeGetInfoScalable(FontPathElementPtr fpe, FontInfoPtr info,
+ FontEntryPtr entry, FontNamePtr fontName,
+ char *fileName, FontScalablePtr vals)
+{
+ int xrc;
+ FontBitmapFormatRec bmfmt;
+
+ MUMBLE("Get info, XLFD=%s\n", entry->name.length ? entry->name.name : "");
+
+ xrc = FreeTypeSetUpFont(fpe, 0, info, 0, 0, &bmfmt);
+ if(xrc != Successful) {
+ return xrc;
+ }
+
+ bmfmt.glyph <<= 3;
+
+ xrc = FreeTypeLoadXFont(fileName, vals, 0, info, &bmfmt, entry);
+ if(xrc != Successful) {
+ MUMBLE("Error during load: %d\n", xrc);
+ return xrc;
+ }
+
+ return Successful;
+}
+
+/* Renderer registration. */
+
+/* Set the capabilities of this renderer. */
+#define CAPABILITIES (CAP_CHARSUBSETTING | CAP_MATRIX)
+
+/* Set it up so file names with either upper or lower case can be
+ loaded. We don't support compressed fonts. */
+static FontRendererRec renderers[] = {
+ {".ttf", 4, 0, FreeTypeOpenScalable, 0,
+ FreeTypeGetInfoScalable, 0, CAPABILITIES},
+ {".ttc", 4, 0, FreeTypeOpenScalable, 0,
+ FreeTypeGetInfoScalable, 0, CAPABILITIES},
+ {".otf", 4, 0, FreeTypeOpenScalable, 0,
+ FreeTypeGetInfoScalable, 0, CAPABILITIES},
+ {".otc", 4, 0, FreeTypeOpenScalable, 0,
+ FreeTypeGetInfoScalable, 0, CAPABILITIES},
+ {".pfa", 4, 0, FreeTypeOpenScalable, 0,
+ FreeTypeGetInfoScalable, 0, CAPABILITIES},
+ {".pfb", 4, 0, FreeTypeOpenScalable, 0,
+ FreeTypeGetInfoScalable, 0, CAPABILITIES},
+};
+static int num_renderers = sizeof(renderers) / sizeof(renderers[0]);
+
+static FontRendererRec alt_renderers[] = {
+ {".bdf", 4, 0, FreeTypeOpenScalable, 0,
+ FreeTypeGetInfoScalable, 0, CAPABILITIES},
+ {".pcf", 4, 0, FreeTypeOpenScalable, 0,
+ FreeTypeGetInfoScalable, 0, CAPABILITIES},
+};
+
+static int num_alt_renderers =
+sizeof(alt_renderers) / sizeof(alt_renderers[0]);
+
+
+void
+FreeTypeRegisterFontFileFunctions(void)
+{
+ int i;
+
+ for (i = 0; i < num_renderers; i++)
+ FontFileRegisterRenderer(&renderers[i]);
+
+ for (i = 0; i < num_alt_renderers; i++)
+ FontFilePriorityRegisterRenderer(&alt_renderers[i], -10);
+}
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