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)
                
                dmsg(1,("EQ support: %s\n", pEffectInfo->Description().c_str()));
                break;
            }
        }
        
        if (pEffect == NULL) {
            dmsg(1,("EQ support: no\n"));
            return;
        }
        
        Reset();
    }
    
    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	/***************************************************************************
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	dmsg(1,("EQ support: %s\n", pEffectInfo->Description().c_str()));
83	break;
84	}
85	}
86
87	if (pEffect == NULL) {
88	dmsg(1,("EQ support: no\n"));
89	return;
90	}
91
92	Reset();
93	}
94
95	void EqSupport::SetGain(int band, float gain) {
96	if (!HasSupport()) return;
97	if (band < 0 \|\| band >= BandCount) throw Exception("EQ support: invalid band");
98
99	EffectControl* ctrl = pEffect->InputControl(GainIdxs[band]);
100	gain = check(ctrl->MinValue(), ctrl->MaxValue(), gain);
101	ctrl->SetValue(gain);
102	if (pEffect2 != NULL) pEffect2->InputControl(GainIdxs[band])->SetValue(gain);
103	}
104
105	void EqSupport::SetFreq(int band, float freq) {
106	if (!HasSupport()) return;
107	if (band < 0 \|\| band >= BandCount) throw Exception("EQ support: invalid band");
108
109	EffectControl* ctrl = pEffect->InputControl(FreqIdxs[band]);
110	freq = check(ctrl->MinValue(), ctrl->MaxValue(), freq);
111	ctrl->SetValue(freq);
112	if (pEffect2 != NULL) pEffect2->InputControl(FreqIdxs[band])->SetValue(freq);
113	}
114
115	void EqSupport::SetBandwidth(int band, float octaves) {
116	if (!HasSupport()) return;
117	if (band < 0 \|\| band >= BandCount) throw Exception("EQ support: invalid band");
118
119	EffectControl* ctrl = pEffect->InputControl(BandwidthIdxs[band]);
120	octaves = check(ctrl->MinValue(), ctrl->MaxValue(), octaves);
121	ctrl->SetValue(octaves);
122	if (pEffect2 != NULL) pEffect2->InputControl(BandwidthIdxs[band])->SetValue(octaves);
123	}
124
125	void EqSupport::Uninstall() {
126	if (pEffect != NULL) EffectFactory::Destroy(pEffect);
127	if (pEffect2 != NULL) EffectFactory::Destroy(pEffect2);
128	if (GainIdxs != NULL) delete[] GainIdxs;
129	if (FreqIdxs != NULL) delete[] FreqIdxs;
130	if (BandwidthIdxs != NULL) delete[] BandwidthIdxs;
131
132	pEffect = pEffect2 = NULL;
133	BandCount = 0;
134	GainIdxs = FreqIdxs = BandwidthIdxs = NULL;
135	}
136
137	EqSupport::~EqSupport() {
138	Uninstall();
139	}
140	} // namespace LinuxSampler