New input/output plugin architecture. New LV2 plugin.

1 files changed, 199 insertions, 0 deletions

diff --git a/drumgizmo/output/wavfile/wavfile.cc b/drumgizmo/output/wavfile/wavfile.cc
new file mode 100644
index 0000000..03d8a7c
--- /dev/null
+++ b/drumgizmo/output/wavfile/wavfile.cc
@@ -0,0 +1,199 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            wavfile.cc
+ *
+ *  Sat Apr 30 21:12:02 CEST 2011
+ *  Copyright 2011 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of DrumGizmo.
+ *
+ *  DrumGizmo is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  DrumGizmo 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 DrumGizmo; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include <stdlib.h>
+
+#include <audiotypes.h>
+#include <string>
+
+#include <sndfile.h>
+
+#define T(x, msg) if(x < 0) { printf("%s failed: %s\n", msg, snd_strerror(x)); fflush(stdout); return false; }
+
+class WavFile {
+public:
+  WavFile();
+  ~WavFile();
+  bool init(int channels, char *cnames[]);
+  void setParm(std::string parm, std::string value);
+  bool start();
+  void stop();
+  void pre(size_t size);
+  void run(int channel, sample_t* data, size_t size);
+  void post(size_t size);
+
+private:
+  SF_INFO sf_info;
+  SNDFILE **fh;
+  size_t channels;
+
+  // Parameters
+  std::string filename;
+};
+
+WavFile::WavFile()
+{
+  fh = NULL;
+  filename = "output";
+}
+
+WavFile::~WavFile()
+{
+  if(fh == NULL) return;
+
+  for(size_t i = 0; i < channels; i++) {
+    if(fh[i]) sf_close(fh[i]);
+  }
+
+  if(fh) free(fh);
+}
+
+bool WavFile::init(int channels, char *cnames[])
+{
+  this->channels = channels;
+  
+  sf_info.channels = 1;//channels;
+  sf_info.format = SF_FORMAT_WAV | SF_FORMAT_FLOAT;
+  sf_info.samplerate = 44100;
+
+  fh = (SNDFILE **)malloc(sizeof(SNDFILE *)*channels);
+
+  for(size_t i = 0; i < this->channels; i++) fh[i] = NULL;
+
+  for(size_t i = 0; i < this->channels; i++) {
+    char fname[512];
+
+    sprintf(fname, "%s%s-%d.wav", filename.c_str(), cnames[i], i);
+    //    printf("[%s]\n", fname);
+
+    fh[i] = sf_open(fname, SFM_WRITE, &sf_info);
+    if(!fh[i]) {
+      printf("Write error...\n");
+      return false;
+    }
+  }
+
+  return true;
+}
+
+void WavFile::setParm(std::string parm, std::string value)
+{
+  if(parm == "file") filename = value;
+}
+
+bool WavFile::start()
+{
+  return true;
+}
+
+void WavFile::stop()
+{
+}
+
+void WavFile::pre(size_t size)
+{
+}
+
+void WavFile::run(int channel, sample_t* cdata, size_t csize)
+{
+  if(channel < (int)channels) sf_writef_float(fh[channel], cdata, csize); 
+}
+
+void WavFile::post(size_t size)
+{
+}
+
+extern "C" {
+  void *create()
+  {
+    return new WavFile();
+  }
+  
+  void destroy(void *h)
+  {
+    WavFile *sndfile = (WavFile*)h;
+    delete sndfile;
+  }
+
+  bool init(void *h, int cs, char *cnames[])
+  {
+    WavFile *sndfile = (WavFile*)h;
+    return sndfile->init(cs, cnames);
+  }
+
+  void setparm(void *h, const char *parm, const char *value)
+  {
+    WavFile *sndfile = (WavFile*)h;
+    sndfile->setParm(parm, value);
+  }
+
+  bool start(void *h)
+  {
+    WavFile *sndfile = (WavFile*)h;
+    return sndfile->start();
+  }
+
+  void stop(void *h)
+  {
+    WavFile *sndfile = (WavFile*)h;
+    sndfile->stop();
+  }
+
+  void pre(void *h, size_t s)
+  {
+    WavFile *sndfile = (WavFile*)h;
+    sndfile->pre(s);
+  }
+
+  void run(void *h, int ch, sample_t *data, size_t size)
+  {
+    WavFile *sndfile = (WavFile*)h;
+    sndfile->run(ch, data, size);
+  }
+
+  void post(void *h, size_t s)
+  {
+    WavFile *sndfile = (WavFile*)h;
+    sndfile->post(s);
+  }
+}
+
+#ifdef TEST_AUDIOOUTPUTENGINESNDFILE
+//Additional dependency files
+//deps:
+//Required cflags (autoconf vars may be used)
+//cflags:
+//Required link options (autoconf vars may be used)
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+
+TEST_END;
+
+#endif/*TEST_AUDIOOUTPUTENGINESNDFILE*/