diff options
author | Robert Jonsson <spamatica@gmail.com> | 2009-12-27 11:30:35 +0000 |
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committer | Robert Jonsson <spamatica@gmail.com> | 2009-12-27 11:30:35 +0000 |
commit | b703eab295330e6f81564fbb39a10a1a2fdd2f54 (patch) | |
tree | e46b5c9a6bc22fd661c15d1d2123f5bf631cef80 /muse_qt4_evolution/grepmidi | |
parent | 5d5fa0fdf913907edbc3d2d29a7548f0cb658c94 (diff) |
moved old qt4 branch
Diffstat (limited to 'muse_qt4_evolution/grepmidi')
-rw-r--r-- | muse_qt4_evolution/grepmidi/CMakeLists.txt | 24 | ||||
-rw-r--r-- | muse_qt4_evolution/grepmidi/grepmidi.cpp | 348 |
2 files changed, 372 insertions, 0 deletions
diff --git a/muse_qt4_evolution/grepmidi/CMakeLists.txt b/muse_qt4_evolution/grepmidi/CMakeLists.txt new file mode 100644 index 00000000..55084217 --- /dev/null +++ b/muse_qt4_evolution/grepmidi/CMakeLists.txt @@ -0,0 +1,24 @@ +#============================================================================= +# MusE +# Linux Music Editor +# $Id:$ +# +# Copyright (C) 2002-2006 by Werner Schweer and others +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +#============================================================================= + +add_executable ( grepmidi grepmidi.cpp ) + +install_targets ( /bin grepmidi ) + diff --git a/muse_qt4_evolution/grepmidi/grepmidi.cpp b/muse_qt4_evolution/grepmidi/grepmidi.cpp new file mode 100644 index 00000000..5e8a4f62 --- /dev/null +++ b/muse_qt4_evolution/grepmidi/grepmidi.cpp @@ -0,0 +1,348 @@ +//========================================================= +// MusE +// Linux Music Editor +// $Id: grepmidi.cpp,v 1.1.1.1 2003/10/27 18:57:02 wschweer Exp $ +// +// (C) Copyright 1999/2000 Werner Schweer (ws@seh.de) +//========================================================= + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> + +#define XCHG_SHORT(x) ((((x)&0xFF)<<8) | (((x)>>8)&0xFF)) +#ifdef __i486__ +#define XCHG_LONG(x) \ + ({ int __value; \ + asm ("bswap %1; movl %1,%0" : "=g" (__value) : "r" (x)); \ + __value; }) +#else +#define XCHG_LONG(x) ((((x)&0xFF)<<24) | \ + (((x)&0xFF00)<<8) | \ + (((x)&0xFF0000)>>8) | \ + (((x)>>24)&0xFF)) +#endif + +#if __BYTE_ORDER == __LITTLE_ENDIAN +#define BE_SHORT(x) XCHG_SHORT(x) +#define BE_LONG(x) XCHG_LONG(x) +#else +#define BE_SHORT(x) x +#define BE_LONG(x) x +#endif + + +int cpos; +bool printName = false; +char* curName; + +//--------------------------------------------------------- +// readLong +//--------------------------------------------------------- + +int readLong(FILE* f) + { + int format; + if (fread(&format, 4, 1, f) != 1) { + printf("read long failed\n"); + exit(1); + } + cpos += 4; + return BE_LONG(format); + } + +//--------------------------------------------------------- +// readShort +//--------------------------------------------------------- + +int readShort(FILE* f) + { + short format; + if (fread(&format, 2, 1, f) != 1) { + printf("read short failed\n"); + exit(1); + } + cpos += 2; + return BE_SHORT(format); + } + +/*--------------------------------------------------------- + * getvl + * Read variable-length number (7 bits per byte, MSB first) + *---------------------------------------------------------*/ + +int getvl(FILE* f) + { + int l = 0; + for (int i = 0;i < 8; i++) { + int c = getc(f); + ++cpos; + if (c == EOF) + break; + c &= 0xff; + l += (c & 0x7f); + if (!(c & 0x80)) + return l; + l <<= 7; + } + printf("Variable Len too long\n"); + return -1; + } + +//--------------------------------------------------------- +// skip +//--------------------------------------------------------- + +void skip(FILE* f, int n) + { + while (n--) { + ++cpos; + if (getc(f) == EOF) { + printf("skip %d failed\n", n); + exit(1); + } + } + } + +//--------------------------------------------------------- +// grepTrack +//--------------------------------------------------------- + +int grepTrack(FILE* f, int trackno) + { +// printf("TRACK %d\n", trackno); + int mtype, mlen; + int b; + char* buffer; + + char tmp[4]; + fread(tmp, 4, 1, f); + if (memcmp(tmp, "MTrk", 4)) + return -5; + int len = readLong(f); + int endpos = cpos + len; + int runstate = -1; + + for (;;) { +/* int nclick = */ getvl(f); + int me = getc(f); + ++cpos; + int a = -1; + if ((me & 0x80) == 0) { + if (runstate == -1) + return -6; + a = me; + me = runstate; + } + switch (me & 0xf0) { + case 0x80: + case 0x90: + case 0xa0: + case 0xb0: + case 0xe0: + b = getc(f); + ++cpos; + case 0xc0: + case 0xd0: + if (a == -1) { + a = getc(f); + ++cpos; + } + runstate = me; + break; + case 0xf0: + switch(me & 0xf) { + case 0: // SYSEX + mlen = getvl(f); + skip(f, mlen); + break; + case 1: + case 2: + case 3: + case 4: + case 5: + case 6: + if (printName) + printf("%s: ", curName); + printf("unknown Message\n"); + break; + case 7: // EOX + case 8: // timing clock + case 9: // undefined + case 0xa: // start + case 0xb: // continue + case 0xc: // stop + case 0xd: // undefined + case 0xe: // active sensing + if (printName) + printf("%s: ", curName); + printf("RT Message??\n"); + break; + case 0xf: // META + mtype = getc(f); + ++cpos; + mlen = getvl(f); + buffer = new char[mlen+1]; + if (mlen) { + if (fread(buffer, mlen, 1, f) != 1) { + if (printName) + printf("%s: ", curName); + printf("---meta %d too short (%d)\n", mtype, mlen); + exit(1); + } + cpos += mlen; + } + switch(mtype) { + case 0x2f: + delete buffer; + goto end; + case 1: + case 2: + case 3: + case 4: + case 5: + case 6: // Marker + case 7: + case 8: + case 9: + case 10: + case 11: + case 12: + case 13: + case 14: + case 15: + buffer[mlen] = 0; + if (printName) + printf("%s: ", curName); + printf("%02d Meta %0d: <%s>\n", trackno, mtype, buffer); + default: + break; + } + delete buffer; + break; + } + break; + } + } +end: + if (cpos != endpos) { + if (printName) + printf("%s: ", curName); + printf(" %d zu kurz\n", cpos - endpos); + } + if (endpos-cpos > 0) + skip(f, endpos-cpos); + return 0; + } + +//--------------------------------------------------------- +// grep +//--------------------------------------------------------- + +int grep(FILE* f) + { + char tmp[4]; + + fread(tmp, 4, 1, f); + if (memcmp(tmp, "MThd", 4) != 0) + return -2; + int len = readLong(f); + if (len < 6) + return -3; + cpos += 8; + int format = readShort(f); + int ntracks = readShort(f); + readShort(f); // division + if (len > 6) + skip(f, len-6); /* skip the excess */ + int rv = 0; + switch (format) { + case 0: rv = grepTrack(f, 0); break; + case 1: + for (int i = 0; i < ntracks; i++) { + rv = grepTrack(f, i); + if (rv != 0) + return rv; + } + break; + default: + return -4; + } + + return 0; + } + +//--------------------------------------------------------- +// grep +//--------------------------------------------------------- + +int grepMidi(char* name) + { + curName = name; + char*p = strrchr(name, '.'); + FILE* f; + if (p && strcmp(p, ".gz") == 0) { + char buffer[512]; + sprintf(buffer, "gunzip < %s", name); + f = popen(buffer, "r"); + } + else { + p = 0; + f = fopen(name, "r"); + } + if (f == 0) + return -1; + cpos = 0; + int rc = grep(f); + if (p) + pclose(f); + else + fclose(f); + return rc; + } + +//--------------------------------------------------------- +// usage +//--------------------------------------------------------- + +void usage(const char* fname, const char* txt) + { + fprintf(stderr, "%s: %s\n", fname, txt); +// fprintf(stderr, "usage:\n"); + } + +//--------------------------------------------------------- +// main +//--------------------------------------------------------- + +int main(int argc, char* argv[]) + { + int c; + while ((c = getopt(argc, argv, "f")) != EOF) { + switch (c) { + case 'f': printName = true; break; + default: usage(argv[0], "bad argument"); return -1; + } + } + argc -= optind; + ++argc; + char* p = 0; + for (int i = 1; i < argc; ++i) { + switch (grepMidi(argv[i])) { + case 0: break; + case -1: p = "not found"; break; + case -2: p = "no 'MThd': not a midi file"; break; + case -3: p = "file too short"; break; + case -4: p = "bad file type"; break; + case -5: p = "no 'MTrk': not a midi file"; break; + case -6: p = "no running state"; break; + default: + printf("was??\n"); + return -1; + } + } + if (p) + printf("Error: <%s>\n", p); + return 0; + } |