Actually added support for drumsynth files and added many ds files

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/branches/lmms/stable-0.3@550 0778d3d1-df1d-0410-868b-ea421aaaa00d

include/drumsynth.h

@@ -0,0 +1,53 @@
+// DrumSynth DS file renderer
+// Copyright (c)1998-2000 Paul Kellett (mda-vst.com)
+// Licensed under the MIT License. Read drumsynth.LICENSE for details
+// Version 2.0 (5/10/00)
+//
+// Adapted for LMMS 2007  Paul Giblock
+//
+// Permission is hereby granted, free of charge, to any person
+// obtaining a copy of this software and associated documentation
+// files (the "Software"), to deal in the Software without
+// restriction, including without limitation the rights to use,
+// copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following
+// conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+
+#ifndef _DRUMSYNTH_H__
+#define _DRUMSYNTH_H__
+
+#include <stdint.h>
+
+class DrumSynth {
+    public:
+        DrumSynth() {};
+        int GetDSFileSamples(const char *dsfile, int16_t *&wave, int channels);
+
+    private:
+        float LoudestEnv(void);
+        int   LongestEnv(void);
+        void  UpdateEnv(int e, long t);
+        void  GetEnv(int env, const char *sec, const char *key, const char *ini);
+
+        float waveform(float ph, int form);
+        
+        int GetPrivateProfileString(const char *sec, const char *key, const char *def, char *buffer, int size, const char *file);
+        int GetPrivateProfileInt(const char *sec, const char *key, int def, const char *file);
+        float GetPrivateProfileFloat(const char *sec, const char *key, float def, const char *file);
+
+};
+
+#endif