| /* |
| * $RCSId: $ |
| * |
| * Copyright © 2000 Keith Packard |
| * |
| * Permission to use, copy, modify, distribute, and sell this software and its |
| * documentation for any purpose is hereby granted without fee, provided that |
| * the above copyright notice appear in all copies and that both that |
| * copyright notice and this permission notice appear in supporting |
| * documentation, and that the name of Keith Packard not be used in |
| * advertising or publicity pertaining to distribution of the software without |
| * specific, written prior permission. Keith Packard makes no |
| * representations about the suitability of this software for any purpose. It |
| * is provided "as is" without express or implied warranty. |
| * |
| * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #include <stdlib.h> |
| #include "fcint.h" |
| |
| FcFontSet * |
| FcFontSetCreate (void) |
| { |
| FcFontSet *s; |
| |
| s = (FcFontSet *) malloc (sizeof (FcFontSet)); |
| if (!s) |
| return 0; |
| FcMemAlloc (FC_MEM_FONTSET, sizeof (FcFontSet)); |
| s->nfont = 0; |
| s->sfont = 0; |
| s->fonts = 0; |
| return s; |
| } |
| |
| void |
| FcFontSetDestroy (FcFontSet *s) |
| { |
| int i; |
| |
| for (i = 0; i < s->nfont; i++) |
| FcPatternDestroy (s->fonts[i]); |
| if (s->fonts) |
| { |
| FcMemFree (FC_MEM_FONTPTR, s->sfont * sizeof (FcPattern *)); |
| free (s->fonts); |
| } |
| FcMemFree (FC_MEM_FONTSET, sizeof (FcFontSet)); |
| free (s); |
| } |
| |
| FcBool |
| FcFontSetAdd (FcFontSet *s, FcPattern *font) |
| { |
| FcPattern **f; |
| int sfont; |
| |
| if (s->nfont == s->sfont) |
| { |
| sfont = s->sfont + 32; |
| if (s->fonts) |
| f = (FcPattern **) realloc (s->fonts, sfont * sizeof (FcPattern *)); |
| else |
| f = (FcPattern **) malloc (sfont * sizeof (FcPattern *)); |
| if (!f) |
| return FcFalse; |
| if (s->sfont) |
| FcMemFree (FC_MEM_FONTPTR, s->sfont * sizeof (FcPattern *)); |
| FcMemAlloc (FC_MEM_FONTPTR, sfont * sizeof (FcPattern *)); |
| s->sfont = sfont; |
| s->fonts = f; |
| } |
| s->fonts[s->nfont++] = font; |
| return FcTrue; |
| } |
| |
| static int * fcfs_pat_count; |
| |
| void |
| FcFontSetNewBank (void) |
| { |
| FcPatternNewBank(); |
| } |
| |
| int |
| FcFontSetNeededBytes (FcFontSet *s) |
| { |
| int i, c, cum = 0; |
| |
| for (i = 0; i < s->nfont; i++) |
| { |
| c = FcPatternNeededBytes(s->fonts[i]); |
| if (c < 0) |
| return c; |
| cum += c; |
| } |
| |
| if (cum > 0) |
| return cum + sizeof(int) + FcObjectNeededBytes(); |
| else |
| return 0; |
| } |
| |
| /* Returns an overestimate of the number of bytes that |
| * might later get eaten up by padding in the ALIGN macro. */ |
| int |
| FcFontSetNeededBytesAlign (void) |
| { |
| return __alignof__(int) + |
| FcPatternNeededBytesAlign () + FcObjectNeededBytesAlign (); |
| } |
| |
| void * |
| FcFontSetDistributeBytes (FcCache * metadata, void * block_ptr) |
| { |
| block_ptr = ALIGN (block_ptr, int); |
| fcfs_pat_count = (int *)block_ptr; |
| block_ptr = (int *)block_ptr + 1; |
| // we don't consume any bytes for the fontset itself, |
| // since we don't allocate it statically. |
| block_ptr = FcPatternDistributeBytes (metadata, block_ptr); |
| |
| // for good measure, write out the object ids used for |
| // this bank to the file. |
| return FcObjectDistributeBytes (metadata, block_ptr); |
| } |
| |
| FcBool |
| FcFontSetSerialize (int bank, FcFontSet * s) |
| { |
| int i; |
| FcPattern * p; |
| *fcfs_pat_count = s->nfont; |
| |
| for (i = 0; i < s->nfont; i++) |
| { |
| p = FcPatternSerialize (bank, s->fonts[i]); |
| if (!p) return FcFalse; |
| } |
| FcObjectSerialize(); |
| |
| return FcTrue; |
| } |
| |
| FcBool |
| FcFontSetUnserialize(FcCache * metadata, FcFontSet * s, void * block_ptr) |
| { |
| int nfont; |
| int i, n; |
| |
| block_ptr = ALIGN (block_ptr, int); |
| nfont = *(int *)block_ptr; |
| block_ptr = (int *)block_ptr + 1; |
| |
| if (s->sfont < s->nfont + nfont) |
| { |
| int sfont = s->nfont + nfont; |
| FcPattern ** pp; |
| pp = realloc (s->fonts, sfont * sizeof (FcPattern)); |
| if (!pp) |
| return FcFalse; |
| s->fonts = pp; |
| s->sfont = sfont; |
| } |
| n = s->nfont; |
| s->nfont += nfont; |
| |
| if (nfont > 0) |
| { |
| FcPattern * p = (FcPattern *)block_ptr; |
| |
| /* The following line is a bit counterintuitive. The usual |
| * convention is that FcPatternUnserialize is responsible for |
| * aligning the FcPattern. However, the FontSet also stores |
| * the FcPatterns in its own array, so we need to align here |
| * too. */ |
| p = ALIGN(p, FcPattern); |
| for (i = 0; i < nfont; i++) |
| s->fonts[n + i] = p+i; |
| |
| block_ptr = FcPatternUnserialize (metadata, block_ptr); |
| block_ptr = FcObjectUnserialize (metadata, block_ptr); |
| } |
| |
| return block_ptr != 0; |
| } |