1 /*
2 ZynAddSubFX - a software synthesizer
3
4 AdNoteTest.h - CxxTest for Synth/OscilGen
5 Copyright (C) 20011-2012 Mark McCurry
6 Author: Mark McCurry
7
8 This program is free software; you can redistribute it and/or
9 modify it under the terms of the GNU General Public License
10 as published by the Free Software Foundation; either version 2
11 of the License, or (at your option) any later version.
12 */
13 #include "test-suite.h"
14 #include <string>
15 #include "../Synth/OscilGen.h"
16 #include "../Misc/XMLwrapper.h"
17 #include "../DSP/FFTwrapper.h"
18 #include "../Misc/Util.h"
19 #include "../globals.h"
20 using namespace std;
21 using namespace zyn;
22
23 SYNTH_T *synth;
24
25 class OscilGenTest
26 {
27 public:
28 float freq;
29 float *outR, *outL;
30 FFTwrapper *fft;
31 OscilGen *oscil;
32
setUp()33 void setUp() {
34 synth = new SYNTH_T;
35 //First the sensible settings and variables that have to be set:
36 synth->buffersize = 256;
37 synth->oscilsize = 1024;
38
39 outL = new float[synth->oscilsize];
40 outR = new float[synth->oscilsize];
41 memset(outL, 0, sizeof(float) * synth->oscilsize);
42 memset(outR, 0, sizeof(float) * synth->oscilsize);
43
44 //prepare the default settings
45 fft = new FFTwrapper(synth->oscilsize);
46 oscil = new OscilGen(*synth, fft, NULL);
47
48 //Assert defaults [TODO]
49
50
51 XMLwrapper wrap;
52 wrap.loadXMLfile(string(SOURCE_DIR)
53 + string("/guitar-adnote.xmz"));
54 TS_ASSERT(wrap.enterbranch("MASTER"));
55 TS_ASSERT(wrap.enterbranch("PART", 0));
56 TS_ASSERT(wrap.enterbranch("INSTRUMENT"));
57 TS_ASSERT(wrap.enterbranch("INSTRUMENT_KIT"));
58 TS_ASSERT(wrap.enterbranch("INSTRUMENT_KIT_ITEM", 0));
59 TS_ASSERT(wrap.enterbranch("ADD_SYNTH_PARAMETERS"));
60 TS_ASSERT(wrap.enterbranch("VOICE", 0));
61 TS_ASSERT(wrap.enterbranch("OSCIL"));
62 oscil->getfromXML(wrap);
63
64 //verify xml was loaded [TODO]
65
66 //lets go with.... 50! as a nice note
67 const char testnote = 50;
68 freq = 440.0f * powf(2.0f, (testnote - 69.0f) / 12.0f);
69 }
70
tearDown()71 void tearDown() {
72 delete oscil;
73 delete fft;
74 delete[] outL;
75 delete[] outR;
76 FFT_cleanup();
77 delete synth;
78 }
79
80 //verifies that initialization occurs
testInit(void)81 void testInit(void)
82 {
83 oscil->get(outL, freq);
84 }
85
testOutput(void)86 void testOutput(void)
87 {
88 oscil->get(outL, freq);
89 TS_ASSERT_DELTA(outL[23], -0.5371f, 0.0001f);
90 TS_ASSERT_DELTA(outL[129], 0.3613f, 0.0001f);
91 TS_ASSERT_DELTA(outL[586], 0.1118f, 0.0001f);
92 TS_ASSERT_DELTA(outL[1023], -0.6889f, 0.0001f);
93 }
94
testSpectrum(void)95 void testSpectrum(void)
96 {
97 oscil->getspectrum(synth->oscilsize / 2, outR, 1);
98 TS_ASSERT_DELTA(outR[1], 350.698059f, 0.0001f);
99 TS_ASSERT_DELTA(outR[2], 228.889267f, 0.0001f);
100 TS_ASSERT_DELTA(outR[3], 62.187931f, 0.0001f);
101 TS_ASSERT_DELTA(outR[4], 22.295225f, 0.0001f);
102 TS_ASSERT_DELTA(outR[5], 6.942001f, 0.0001f);
103 TS_ASSERT_DELTA(outR[27], 0.015110f, 0.0001f);
104 TS_ASSERT_DELTA(outR[48], 0.003425f, 0.0001f);
105 TS_ASSERT_DELTA(outR[66], 0.001293f, 0.0001f);
106 }
107
108 //performance testing
109 #ifdef __linux__
testSpeed()110 void testSpeed() {
111 const int samps = 15000;
112
113 int t_on = clock(); // timer before calling func
114 for(int i = 0; i < samps; ++i)
115 oscil->prepare();
116 int t_off = clock(); // timer when func returns
117
118 printf("OscilGenTest: %f seconds for %d prepares.\n",
119 (static_cast<float>(t_off - t_on)) / CLOCKS_PER_SEC, samps);
120
121 t_on = clock(); // timer before calling func
122 for(int i = 0; i < samps; ++i)
123 oscil->get(outL, freq);
124 t_off = clock(); // timer when func returns
125
126 printf("OscilGenTest: %f seconds for %d gets.\n",
127 (static_cast<float>(t_off - t_on)) / CLOCKS_PER_SEC, samps);
128 }
129 #endif
130 };
131
main()132 int main()
133 {
134 OscilGenTest test;
135 RUN_TEST(testInit);
136 RUN_TEST(testOutput);
137 RUN_TEST(testSpectrum);
138 #ifdef __linux__
139 RUN_TEST(testSpeed);
140 #endif
141 return test_summary();
142 }
143