engines/common/ModulatorGraph.cpp

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2011 Grigor Iliev                                       *
 *                                                                         *
 *   This program 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.                                   *
 *                                                                         *
 *   This program 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 this program; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#include "SignalUnitRack.h"
#include "../../effects/EffectFactory.h"

namespace LinuxSampler {
    
    /**
     * Searches for know EQ effects and create one if the search succeed.
     */
    EqSupport::EqSupport() {
        pEffect = pEffect2 = NULL;
        BandCount = 0;
        GainIdxs = FreqIdxs = BandwidthIdxs = NULL;
        
        Install();
    }
    
    void EqSupport::Install() {
        Uninstall();
        for (int i = 0; i < EffectFactory::AvailableEffectsCount(); i++) {
            EffectInfo* pEffectInfo = EffectFactory::GetEffectInfo(i);
            /*if (!pEffectInfo->Name().compare("tap_equalizer_bw")) {
                try { pEffect = EffectFactory::Create(pEffectInfo); }
                catch(Exception e) { std::cerr << e.Message(); continue; }
                
                BandCount = 8;
                GainIdxs = new int[BandCount];
                FreqIdxs = new int[BandCount];
                BandwidthIdxs = new int[BandCount];
                for(int i = 0; i < BandCount; i++) {
                    GainIdxs[i] = i;
                    FreqIdxs[i] = i + 8;
                    BandwidthIdxs[i] = i + 16;
                }
                dmsg(1,("EQ support: %s\n", pEffectInfo->Description().c_str()));
                break;
            }*/
            
            if (!pEffectInfo->Name().compare("triplePara")) {
                try {
                    pEffect = EffectFactory::Create(pEffectInfo);
                    pEffect2 = EffectFactory::Create(pEffectInfo);
                } catch(Exception e) { std::cerr << e.Message(); continue; }
                
                BandCount = 3;
                GainIdxs = new int[BandCount];
                FreqIdxs = new int[BandCount];
                BandwidthIdxs = new int[BandCount];
                for(int i = 0; i < BandCount; i++) {
                    GainIdxs[i] = i*3 + 3;
                    FreqIdxs[i] = i*3 + 4;
                    BandwidthIdxs[i] = i*3 + 5;
                }
                
                pEffect->InputControl(0)->SetValue(0); // Low-shelving gain (0dB)
                pEffect->InputControl(12)->SetValue(0); // High-shelving gain (0dB)
                
                pEffect2->InputControl(0)->SetValue(0); // Low-shelving gain (0dB)
                pEffect2->InputControl(12)->SetValue(0); // High-shelving gain (0dB)
                
                break;
            }
        }
        
        if (pEffect == NULL) return;
        
        Reset();
    }
    
    void EqSupport::PrintInfo() {
        if (!HasSupport()) {
            dmsg(1,("EQ support: no\n"));
        } else {
            dmsg(1,("EQ support: %s\n", pEffect->GetEffectInfo()->Description().c_str()));
        }
    }
    
    void EqSupport::SetGain(int band, float gain) {
        if (!HasSupport()) return;
        if (band < 0 || band >= BandCount) throw Exception("EQ support: invalid band");
        
        EffectControl* ctrl = pEffect->InputControl(GainIdxs[band]);
        gain = check(ctrl->MinValue(), ctrl->MaxValue(), gain);
        ctrl->SetValue(gain);
        if (pEffect2 != NULL) pEffect2->InputControl(GainIdxs[band])->SetValue(gain);
    }
    
    void EqSupport::SetFreq(int band, float freq) {
        if (!HasSupport()) return;
        if (band < 0 || band >= BandCount) throw Exception("EQ support: invalid band");
        
        EffectControl* ctrl = pEffect->InputControl(FreqIdxs[band]);
        freq = check(ctrl->MinValue(), ctrl->MaxValue(), freq);
        ctrl->SetValue(freq);
        if (pEffect2 != NULL) pEffect2->InputControl(FreqIdxs[band])->SetValue(freq);
    }
    
    void EqSupport::SetBandwidth(int band, float octaves) {
        if (!HasSupport()) return;
        if (band < 0 || band >= BandCount) throw Exception("EQ support: invalid band");
        
        EffectControl* ctrl = pEffect->InputControl(BandwidthIdxs[band]);
        octaves = check(ctrl->MinValue(), ctrl->MaxValue(), octaves);
        ctrl->SetValue(octaves);
        if (pEffect2 != NULL) pEffect2->InputControl(BandwidthIdxs[band])->SetValue(octaves);
    }
    
    void EqSupport::Uninstall() {
        if (pEffect != NULL) EffectFactory::Destroy(pEffect);
        if (pEffect2 != NULL) EffectFactory::Destroy(pEffect2);
        if (GainIdxs != NULL) delete[] GainIdxs;
        if (FreqIdxs != NULL) delete[] FreqIdxs;
        if (BandwidthIdxs != NULL) delete[] BandwidthIdxs;

        pEffect = pEffect2 = NULL;
        BandCount = 0;
        GainIdxs = FreqIdxs = BandwidthIdxs = NULL;
    }
    
    EqSupport::~EqSupport() {
        Uninstall();
    }
} // namespace LinuxSampler
1	iliev	2296	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5			* Copyright (C) 2011 Grigor Iliev *
6			* *
7			* This program is free software; you can redistribute it and/or modify *
8			* it under the terms of the GNU General Public License as published by *
9			* the Free Software Foundation; either version 2 of the License, or *
10			* (at your option) any later version. *
11			* *
12			* This program is distributed in the hope that it will be useful, *
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of *
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15			* GNU General Public License for more details. *
16			* *
17			* You should have received a copy of the GNU General Public License *
18			* along with this program; if not, write to the Free Software *
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
20			* MA 02111-1307 USA *
21			***************************************************************************/
22
23			#include "SignalUnitRack.h"
24			#include "../../effects/EffectFactory.h"
25
26			namespace LinuxSampler {
27
28			/**
29			* Searches for know EQ effects and create one if the search succeed.
30			*/
31			EqSupport::EqSupport() {
32			pEffect = pEffect2 = NULL;
33			BandCount = 0;
34			GainIdxs = FreqIdxs = BandwidthIdxs = NULL;
35
36			Install();
37			}
38
39			void EqSupport::Install() {
40			Uninstall();
41			for (int i = 0; i < EffectFactory::AvailableEffectsCount(); i++) {
42			EffectInfo* pEffectInfo = EffectFactory::GetEffectInfo(i);
43			/*if (!pEffectInfo->Name().compare("tap_equalizer_bw")) {
44			try { pEffect = EffectFactory::Create(pEffectInfo); }
45			catch(Exception e) { std::cerr << e.Message(); continue; }
46
47			BandCount = 8;
48			GainIdxs = new int[BandCount];
49			FreqIdxs = new int[BandCount];
50			BandwidthIdxs = new int[BandCount];
51			for(int i = 0; i < BandCount; i++) {
52			GainIdxs[i] = i;
53			FreqIdxs[i] = i + 8;
54			BandwidthIdxs[i] = i + 16;
55			}
56			dmsg(1,("EQ support: %s\n", pEffectInfo->Description().c_str()));
57			break;
58			}*/
59
60			if (!pEffectInfo->Name().compare("triplePara")) {
61			try {
62			pEffect = EffectFactory::Create(pEffectInfo);
63			pEffect2 = EffectFactory::Create(pEffectInfo);
64			} catch(Exception e) { std::cerr << e.Message(); continue; }
65
66			BandCount = 3;
67			GainIdxs = new int[BandCount];
68			FreqIdxs = new int[BandCount];
69			BandwidthIdxs = new int[BandCount];
70			for(int i = 0; i < BandCount; i++) {
71			GainIdxs[i] = i*3 + 3;
72			FreqIdxs[i] = i*3 + 4;
73			BandwidthIdxs[i] = i*3 + 5;
74			}
75
76			pEffect->InputControl(0)->SetValue(0); // Low-shelving gain (0dB)
77			pEffect->InputControl(12)->SetValue(0); // High-shelving gain (0dB)
78
79			pEffect2->InputControl(0)->SetValue(0); // Low-shelving gain (0dB)
80			pEffect2->InputControl(12)->SetValue(0); // High-shelving gain (0dB)
81
82			break;
83			}
84			}
85
86	iliev	2298	if (pEffect == NULL) return;
87	iliev	2296
88			Reset();
89			}
90
91	iliev	2298	void EqSupport::PrintInfo() {
92			if (!HasSupport()) {
93			dmsg(1,("EQ support: no\n"));
94			} else {
95			dmsg(1,("EQ support: %s\n", pEffect->GetEffectInfo()->Description().c_str()));
96			}
97			}
98
99	iliev	2296	void EqSupport::SetGain(int band, float gain) {
100			if (!HasSupport()) return;
101			if (band < 0 \|\| band >= BandCount) throw Exception("EQ support: invalid band");
102
103			EffectControl* ctrl = pEffect->InputControl(GainIdxs[band]);
104			gain = check(ctrl->MinValue(), ctrl->MaxValue(), gain);
105			ctrl->SetValue(gain);
106			if (pEffect2 != NULL) pEffect2->InputControl(GainIdxs[band])->SetValue(gain);
107			}
108
109			void EqSupport::SetFreq(int band, float freq) {
110			if (!HasSupport()) return;
111			if (band < 0 \|\| band >= BandCount) throw Exception("EQ support: invalid band");
112
113			EffectControl* ctrl = pEffect->InputControl(FreqIdxs[band]);
114			freq = check(ctrl->MinValue(), ctrl->MaxValue(), freq);
115			ctrl->SetValue(freq);
116			if (pEffect2 != NULL) pEffect2->InputControl(FreqIdxs[band])->SetValue(freq);
117			}
118
119			void EqSupport::SetBandwidth(int band, float octaves) {
120			if (!HasSupport()) return;
121			if (band < 0 \|\| band >= BandCount) throw Exception("EQ support: invalid band");
122
123			EffectControl* ctrl = pEffect->InputControl(BandwidthIdxs[band]);
124			octaves = check(ctrl->MinValue(), ctrl->MaxValue(), octaves);
125			ctrl->SetValue(octaves);
126			if (pEffect2 != NULL) pEffect2->InputControl(BandwidthIdxs[band])->SetValue(octaves);
127			}
128
129			void EqSupport::Uninstall() {
130			if (pEffect != NULL) EffectFactory::Destroy(pEffect);
131			if (pEffect2 != NULL) EffectFactory::Destroy(pEffect2);
132			if (GainIdxs != NULL) delete[] GainIdxs;
133			if (FreqIdxs != NULL) delete[] FreqIdxs;
134			if (BandwidthIdxs != NULL) delete[] BandwidthIdxs;
135
136			pEffect = pEffect2 = NULL;
137			BandCount = 0;
138			GainIdxs = FreqIdxs = BandwidthIdxs = NULL;
139			}
140
141			EqSupport::~EqSupport() {
142			Uninstall();
143			}
144			} // namespace LinuxSampler