annotate src/fftw-3.3.8/api/mkprinter-file.c @ 82:d0c2a83c1364

Add FFTW 3.3.8 source, and a Linux build
author Chris Cannam
date Tue, 19 Nov 2019 14:52:55 +0000
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Chris@82 1 /*
Chris@82 2 * Copyright (c) 2003, 2007-14 Matteo Frigo
Chris@82 3 * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
Chris@82 4 *
Chris@82 5 * This program is free software; you can redistribute it and/or modify
Chris@82 6 * it under the terms of the GNU General Public License as published by
Chris@82 7 * the Free Software Foundation; either version 2 of the License, or
Chris@82 8 * (at your option) any later version.
Chris@82 9 *
Chris@82 10 * This program is distributed in the hope that it will be useful,
Chris@82 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@82 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Chris@82 13 * GNU General Public License for more details.
Chris@82 14 *
Chris@82 15 * You should have received a copy of the GNU General Public License
Chris@82 16 * along with this program; if not, write to the Free Software
Chris@82 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Chris@82 18 *
Chris@82 19 */
Chris@82 20
Chris@82 21 #include "api/api.h"
Chris@82 22 #include <stdio.h>
Chris@82 23
Chris@82 24 #define BUFSZ 256
Chris@82 25
Chris@82 26 typedef struct {
Chris@82 27 printer super;
Chris@82 28 FILE *f;
Chris@82 29 char buf[BUFSZ];
Chris@82 30 char *bufw;
Chris@82 31 } P;
Chris@82 32
Chris@82 33 static void myflush(P *p)
Chris@82 34 {
Chris@82 35 fwrite(p->buf, 1, p->bufw - p->buf, p->f);
Chris@82 36 p->bufw = p->buf;
Chris@82 37 }
Chris@82 38
Chris@82 39 static void myputchr(printer *p_, char c)
Chris@82 40 {
Chris@82 41 P *p = (P *) p_;
Chris@82 42 if (p->bufw >= p->buf + BUFSZ)
Chris@82 43 myflush(p);
Chris@82 44 *p->bufw++ = c;
Chris@82 45 }
Chris@82 46
Chris@82 47 static void mycleanup(printer *p_)
Chris@82 48 {
Chris@82 49 P *p = (P *) p_;
Chris@82 50 myflush(p);
Chris@82 51 }
Chris@82 52
Chris@82 53 printer *X(mkprinter_file)(FILE *f)
Chris@82 54 {
Chris@82 55 P *p = (P *) X(mkprinter)(sizeof(P), myputchr, mycleanup);
Chris@82 56 p->f = f;
Chris@82 57 p->bufw = p->buf;
Chris@82 58 return &p->super;
Chris@82 59 }