diff options
Diffstat (limited to 'src/instrument.cc')
| -rw-r--r-- | src/instrument.cc | 205 |
1 files changed, 100 insertions, 105 deletions
diff --git a/src/instrument.cc b/src/instrument.cc index 96a6bfd..eeaa956 100644 --- a/src/instrument.cc +++ b/src/instrument.cc @@ -34,147 +34,142 @@ #include "sample.h" #include "configuration.h" -Instrument::Instrument() +Instrument::Instrument(Settings& settings) + : settings(settings) { - DEBUG(instrument, "new %p\n", this); - mod = 1.0; - lastpos = 0; + DEBUG(instrument, "new %p\n", this); + mod = 1.0; + lastpos = 0; - magic = this; + magic = this; } Instrument::~Instrument() { - magic = NULL; - - DEBUG(instrument, "delete %p\n", this); - std::vector<AudioFile*>::iterator i = audiofiles.begin(); - while(i != audiofiles.end()) { - delete *i; - i++; - } + magic = NULL; + + DEBUG(instrument, "delete %p\n", this); + std::vector<AudioFile*>::iterator i = audiofiles.begin(); + while(i != audiofiles.end()) + { + delete *i; + i++; + } } bool Instrument::isValid() { - return this == magic; + return this == magic; } Sample *Instrument::sample(level_t level, size_t pos) { - Sample *sample = NULL; - - if(Conf::enable_velocity_modifier == false) { - mod = 1.0; - lastpos = 0; - } - - if(Conf::enable_velocity_randomiser) { - float r = (float)rand() / (float)RAND_MAX; // random number: [0;1] - r -= 0.5; // random number [-0.5;0.5] - r *= Conf::velocity_randomiser_weight * 2; // ex. random number [-0.1;0.1] - level += r; - if(level > 1.0) level = 1.0; - if(level < 0.0) level = 0.0; - } - - if(Conf::enable_velocity_modifier) { - mod += (pos - lastpos) / - (Conf::samplerate * Conf::velocity_modifier_falloff); - if(mod > 1.0) mod = 1.0; - } - - if(version >= VersionStr("2.0")) { - // Version 2.0 - sample = powerlist.get(level * mod); - } else { - // Version 1.0 - std::vector<Sample*> s = samples.get(level * mod); - if(s.size() == 0) return NULL; - size_t idx = rand()%(s.size()); - sample = s[idx]; - } - - if(Conf::enable_velocity_modifier) { - lastpos = pos; - mod *= Conf::velocity_modifier_weight; - } - - return sample; + Sample *sample = NULL; + + // Read out all values from settings. + auto enable_velocity_randomiser = settings.enable_velocity_randomiser.load(); + auto velocity_randomiser_weight = settings.velocity_randomiser_weight.load(); + auto samplerate = settings.samplerate.load(); + auto velocity_modifier_falloff = settings.velocity_modifier_falloff.load(); + auto enable_velocity_modifier = settings.enable_velocity_modifier.load(); + auto velocity_modifier_weight = settings.velocity_modifier_weight.load(); + + if(enable_velocity_modifier == false) + { + mod = 1.0; + lastpos = 0; + } + + if(enable_velocity_randomiser) + { + float r = (float)rand() / (float)RAND_MAX; // random number: [0;1] + r -= 0.5; // random number [-0.5;0.5] + r *= velocity_randomiser_weight * 2; // ex. random number [-0.1;0.1] + level += r; + if(level > 1.0) + { + level = 1.0; + } + + if(level < 0.0) + { + level = 0.0; + } + } + + if(enable_velocity_modifier) + { + mod += (pos - lastpos) / + (samplerate * velocity_modifier_falloff); + if(mod > 1.0) + { + mod = 1.0; + } + } + + if(version >= VersionStr("2.0")) + { + // Version 2.0 + sample = powerlist.get(level * mod); + } + else + { + // Version 1.0 + std::vector<Sample*> s = samples.get(level * mod); + if(s.size() == 0) + { + return NULL; + } + + size_t idx = rand()%(s.size()); + sample = s[idx]; + } + + if(enable_velocity_modifier) + { + lastpos = pos; + mod *= velocity_modifier_weight; + } + + return sample; } void Instrument::addSample(level_t a, level_t b, Sample *s) { - samples.insert(a, b, s); + samples.insert(a, b, s); } void Instrument::finalise() { - if(version >= VersionStr("2.0")) { - std::vector<Sample*>::iterator s = samplelist.begin(); - while(s != samplelist.end()) { - powerlist.add(*s); - s++; - } - - powerlist.finalise(); - } + if(version >= VersionStr("2.0")) + { + std::vector<Sample*>::iterator s = samplelist.begin(); + while(s != samplelist.end()) + { + powerlist.add(*s); + s++; + } + + powerlist.finalise(); + } } std::string Instrument::name() { - return _name; + return _name; } std::string Instrument::description() { - return _description; + return _description; } std::string Instrument::group() { - return _group; + return _group; } void Instrument::setGroup(std::string g) { - _group = g; + _group = g; } - -#ifdef TEST_INSTRUMENT -//deps: channel.cc sample.cc audiofile.cc -//cflags: $(SNDFILE_CFLAGS) -//libs: $(SNDFILE_LIBS) -#include "test.h" - -TEST_BEGIN; - -Instrument i("test"); - -Sample *a = new Sample(); -i.addSample(0.0, 1.0, a); - -Sample *b = new Sample(); -i.addSample(0.0, 1.0, b); - -Sample *c = new Sample(); -i.addSample(1.5, 1.7, c); - -TEST_EQUAL(i.sample(0.0), b, "?"); -TEST_EQUAL(i.sample(0.0), a, "?"); -TEST_EQUAL(i.sample(0.0), b, "?"); -TEST_EQUAL(i.sample(0.0), b, "?"); -TEST_EQUAL(i.sample(0.0), b, "?"); -TEST_EQUAL(i.sample(0.0), b, "?"); -TEST_EQUAL(i.sample(0.0), a, "?"); -TEST_EQUAL(i.sample(0.0), a, "?"); - -TEST_EQUAL(i.sample(2.0), NULL, "?"); - -TEST_EQUAL(i.sample(1.6), c, "?"); -TEST_EQUAL(i.sample(1.6), c, "?"); -TEST_EQUAL(i.sample(1.6), c, "?"); - -TEST_END; - -#endif/*TEST_INSTRUMENT*/ |