New input/output plugin architecture. New LV2 plugin.

1 files changed, 219 insertions, 0 deletions

diff --git a/src/instrumentparser.cc b/src/instrumentparser.cc
new file mode 100644
index 0000000..5198959
--- /dev/null
+++ b/src/instrumentparser.cc
@@ -0,0 +1,219 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            instrumentparser.cc
+ *
+ *  Wed Mar  9 13:22:24 CET 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 "instrumentparser.h"
+
+#include <string.h>
+#include <stdio.h>
+
+#include "path.h"
+
+InstrumentParser::InstrumentParser(const std::string &file, Instrument &i)
+  : instrument(i)
+{
+  s = NULL;
+  printf("Parsing instrument in %s\n", file.c_str());
+  path = getPath(file);
+  fd = fopen(file.c_str(), "r");
+  if(!fd) return;
+}
+
+InstrumentParser::~InstrumentParser()
+{
+  if(fd) fclose(fd);
+}
+
+void InstrumentParser::startTag(std::string name,
+                                std::map< std::string, std::string> attr)
+{
+  if(name == "instrument") {
+    if(attr.find("name") != attr.end())
+      instrument._name = attr["name"];
+
+    if(attr.find("description") != attr.end())
+      instrument._description = attr["description"];
+  }
+
+  if(name == "samples") {
+  }
+
+  if(name == "sample") {
+    if(attr.find("name") == attr.end()) {
+      printf("Missing required attribute 'name'.\n");
+      return;
+    }
+    s = new Sample(attr["name"]);
+  }
+
+  if(name == "audiofile") {
+    if(s == NULL) {
+      printf("Missing Sample!\n");
+      return;
+    }
+    
+    if(attr.find("file") == attr.end()) {
+      printf("Missing required attribute 'file'.\n");
+      return;
+    }
+
+    if(attr.find("channel") == attr.end()) {
+      printf("Missing required attribute 'channel'.\n");
+      return;
+    }
+
+    AudioFile *af = new AudioFile(path + "/" + attr["file"]);
+    InstrumentChannel *ch = new InstrumentChannel(attr["channel"]);
+    channellist.push_back(ch);
+    s->addAudioFile(ch, af);
+    instrument.audiofiles.push_back(af);
+  }
+
+  if(name == "velocities") {
+  }
+
+  if(name == "velocity") {
+    if(attr.find("lower") == attr.end()) {
+      printf("Missing required attribute 'lower'.\n");
+      return;
+    }
+
+    if(attr.find("upper") == attr.end()) {
+      printf("Missing required attribute 'upper'.\n");
+      return;
+    }
+
+    lower = atof(attr["lower"].c_str());
+    upper = atof(attr["upper"].c_str());
+  }
+
+  if(name == "sampleref") {
+    if(attr.find("name") == attr.end()) {
+      printf("Missing required attribute 'name'.\n");
+      return;
+    }
+
+    Sample *sample = NULL;
+    std::vector<Sample *>::iterator i = instrument.samplelist.begin();
+    while(i != instrument.samplelist.end()) {
+      if((*i)->name == attr["name"]) {
+        sample = *i;
+        break;
+      }
+      i++;
+    }
+
+    if(sample == NULL) {
+      printf("Samplref pointed at non-existing sample.\n");
+      return;
+    }
+
+    instrument.addSample(lower, upper, sample);
+  }
+}
+
+void InstrumentParser::endTag(std::string name)
+{
+  if(name == "sample") {
+    if(s == NULL) {
+      printf("Missing Sample.\n");
+      return;
+    }
+
+    instrument.samplelist.push_back(s);
+    s = NULL;
+  }
+}
+
+int InstrumentParser::readData(char *data, size_t size)
+{
+  if(!fd) return -1;
+  return fread(data, 1, size, fd);
+}
+
+
+#ifdef TEST_INSTRUMENTPARSER
+//deps: saxparser.cc instrument.cc sample.cc audiofile.cc channel.cc
+//cflags: $(EXPAT_CFLAGS) $(SNDFILE_CFLAGS)
+//libs: $(EXPAT_LIBS) $(SNDFILE_LIBS)
+#include "test.h"
+
+const char xml[] = 
+"<?xml version='1.0' encoding='UTF-8'?>\n"
+"<instrument name=\"kick-r\">\n"
+" <samples>\n"
+"  <sample name=\"kick-r-1\">\n"
+"   <audiofile channel=\"Alesis\" file=\"samples/1-kick-r-Alesis-3.wav\"/>\n"
+"   <audiofile channel=\"Amb L\" file=\"samples/1-kick-r-Amb L-3.wav\"/>\n"
+"   <audiofile channel=\"Amb R\" file=\"samples/1-kick-r-Amb R-3.wav\"/>\n"
+"   <audiofile channel=\"Kick L\" file=\"samples/1-kick-r-Kick L-3.wav\"/>\n"
+"   <audiofile channel=\"Kick R\" file=\"samples/1-kick-r-Kick R-3.wav\"/>\n"
+"  </sample>\n"
+"  <sample name=\"kick-r-2\">\n"
+"   <audiofile channel=\"Alesis\" file=\"samples/2-kick-r-Alesis-3.wav\"/>\n"
+"   <audiofile channel=\"Amb L\" file=\"samples/2-kick-r-Amb L-3.wav\"/>\n"
+"   <audiofile channel=\"Amb R\" file=\"samples/2-kick-r-Amb R-3.wav\"/>\n"
+"   <audiofile channel=\"Kick L\" file=\"samples/2-kick-r-Kick L-3.wav\"/>\n"
+"   <audiofile channel=\"Kick R\" file=\"samples/2-kick-r-Kick R-3.wav\"/>\n"
+"  </sample>\n"
+"  <sample name=\"kick-r-3\">\n"
+"   <audiofile channel=\"Alesis\" file=\"samples/3-kick-r-Alesis-3.wav\"/>\n"
+"   <audiofile channel=\"Amb L\" file=\"samples/3-kick-r-Amb L-3.wav\"/>\n"
+"   <audiofile channel=\"Amb R\" file=\"samples/3-kick-r-Amb R-3.wav\"/>\n"
+"   <audiofile channel=\"Kick L\" file=\"samples/3-kick-r-Kick L-3.wav\"/>\n"
+"   <audiofile channel=\"Kick R\" file=\"samples/3-kick-r-Kick R-3.wav\"/>\n"
+"  </sample>\n"
+" </samples>\n"
+" <velocities>\n"
+"  <velocity lower=\"0\" upper=\"0.7\">\n"
+"   <sampleref name=\"kick-r-1\"/>\n"
+"   <sampleref name=\"kick-r-2\"/>\n"
+"  </velocity>\n"
+"  <velocity lower=\"0.7\" upper=\"1.0\">\n"
+"   <sampleref name=\"kick-r-3\"/>\n"
+"  </velocity>\n"
+" </velocities>\n"
+"</instrument>\n"
+  ;
+
+#define FNAME "/tmp/instrtest.xml"
+
+TEST_BEGIN;
+
+FILE *fp = fopen(FNAME, "w");
+fprintf(fp, "%s", xml);
+fclose(fp);
+
+Instrument instr;
+InstrumentParser p(FNAME, instr);
+TEST_EQUAL_INT(p.parse(), 0, "Parsing went well?");
+
+TEST_EQUAL_STR(instr.name(), "kick-r", "Compare name");
+
+unlink(FNAME);
+
+TEST_END;
+
+#endif/*TEST_INSTRUMENTPARSER*/