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annotate plugin/plugins/SamplePlayer.h @ 117:c30728d5625c sv1-v0.9rc1

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* Make vertical scale alignment modes work in note layer as well as time-value layer, and several significant fixes to it * Make it possible to draw notes properly on the note layer * Show units (and frequencies etc in note layer's case) in the time-value and note layer description boxes * Minor fix to item edit dialog layout * Some minor menu rearrangement * Comment out a lot of debug output * Add SV website and reference URLs to Help menu, and add code to (attempt to) open them in the user's preferred browser
author Chris Cannam
date Fri, 12 May 2006 14:40:43 +0000
parents b2067aff8cd6
children 0f0c9cf65d5e
rev   line source
Chris@49 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@0 2
Chris@0 3 /*
Chris@52 4 Sonic Visualiser
Chris@52 5 An audio file viewer and annotation editor.
Chris@52 6 Centre for Digital Music, Queen Mary, University of London.
Chris@52 7 This file copyright 2006 Chris Cannam.
Chris@0 8
Chris@52 9 This program is free software; you can redistribute it and/or
Chris@52 10 modify it under the terms of the GNU General Public License as
Chris@52 11 published by the Free Software Foundation; either version 2 of the
Chris@52 12 License, or (at your option) any later version. See the file
Chris@52 13 COPYING included with this distribution for more information.
Chris@0 14 */
Chris@0 15
Chris@0 16 #ifndef _SAMPLE_PLAYER_H_
Chris@0 17 #define _SAMPLE_PLAYER_H_
Chris@0 18
Chris@0 19 #define DSSI_API_LEVEL 2
Chris@0 20
Chris@0 21 #include <ladspa.h>
Chris@0 22 #include <dssi.h>
Chris@0 23 #include <seq_event.h>
Chris@0 24
Chris@0 25 #include <QMutex>
Chris@0 26 #include <QString>
Chris@0 27 #include <vector>
Chris@0 28
Chris@0 29 class SamplePlayer
Chris@0 30 {
Chris@0 31 public:
Chris@0 32 static const DSSI_Descriptor *getDescriptor(unsigned long index);
Chris@0 33
Chris@0 34 private:
Chris@0 35 SamplePlayer(int sampleRate);
Chris@0 36 ~SamplePlayer();
Chris@0 37
Chris@0 38 enum {
Chris@0 39 OutputPort = 0,
Chris@0 40 RetunePort = 1,
Chris@0 41 BasePitchPort = 2,
Chris@0 42 SustainPort = 3,
Chris@0 43 ReleasePort = 4,
Chris@0 44 PortCount = 5
Chris@0 45 };
Chris@0 46
Chris@0 47 enum {
Chris@0 48 Polyphony = 128
Chris@0 49 };
Chris@0 50
Chris@0 51 static const char *const portNames[PortCount];
Chris@0 52 static const LADSPA_PortDescriptor ports[PortCount];
Chris@0 53 static const LADSPA_PortRangeHint hints[PortCount];
Chris@0 54 static const LADSPA_Properties properties;
Chris@0 55 static const LADSPA_Descriptor ladspaDescriptor;
Chris@0 56 static const DSSI_Descriptor dssiDescriptor;
Chris@0 57 static const DSSI_Host_Descriptor *hostDescriptor;
Chris@0 58
Chris@0 59 static LADSPA_Handle instantiate(const LADSPA_Descriptor *, unsigned long);
Chris@0 60 static void connectPort(LADSPA_Handle, unsigned long, LADSPA_Data *);
Chris@0 61 static void activate(LADSPA_Handle);
Chris@0 62 static void run(LADSPA_Handle, unsigned long);
Chris@0 63 static void deactivate(LADSPA_Handle);
Chris@0 64 static void cleanup(LADSPA_Handle);
Chris@75 65 static char *configure(LADSPA_Handle, const char *, const char *);
Chris@0 66 static const DSSI_Program_Descriptor *getProgram(LADSPA_Handle, unsigned long);
Chris@0 67 static void selectProgram(LADSPA_Handle, unsigned long, unsigned long);
Chris@0 68 static int getMidiController(LADSPA_Handle, unsigned long);
Chris@0 69 static void runSynth(LADSPA_Handle, unsigned long,
Chris@0 70 snd_seq_event_t *, unsigned long);
Chris@0 71 static void receiveHostDescriptor(const DSSI_Host_Descriptor *descriptor);
Chris@0 72 static void workThreadCallback(LADSPA_Handle);
Chris@0 73
Chris@0 74 void searchSamples();
Chris@0 75 void loadSampleData(QString path);
Chris@0 76 void runImpl(unsigned long, snd_seq_event_t *, unsigned long);
Chris@0 77 void addSample(int, unsigned long, unsigned long);
Chris@0 78
Chris@0 79 float *m_output;
Chris@0 80 float *m_retune;
Chris@0 81 float *m_basePitch;
Chris@0 82 float *m_sustain;
Chris@0 83 float *m_release;
Chris@0 84
Chris@0 85 float *m_sampleData;
Chris@0 86 size_t m_sampleCount;
Chris@0 87 int m_sampleRate;
Chris@0 88
Chris@0 89 long m_ons[Polyphony];
Chris@0 90 long m_offs[Polyphony];
Chris@0 91 int m_velocities[Polyphony];
Chris@0 92 long m_sampleNo;
Chris@0 93
Chris@83 94 QString m_sampleDir;
Chris@0 95 QString m_program;
Chris@0 96 std::vector<std::pair<QString, QString> > m_samples; // program name, path
Chris@0 97 bool m_sampleSearchComplete;
Chris@0 98 int m_pendingProgramChange;
Chris@0 99
Chris@0 100 QMutex m_mutex;
Chris@0 101 };
Chris@0 102
Chris@0 103
Chris@0 104 #endif