1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
2
3 /*
4 Sonic Visualiser
5 An audio file viewer and annotation editor.
6 Centre for Digital Music, Queen Mary, University of London.
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 as
10 published by the Free Software Foundation; either version 2 of the
11 License, or (at your option) any later version. See the file
12 COPYING included with this distribution for more information.
13 */
14
15 #ifndef SV_BASE_TYPES_H
16 #define SV_BASE_TYPES_H
17
18 #include <cstdint>
19 #include <complex>
20 #include <vector>
21
22 #include <bqvec/Allocators.h>
23
24 /** Frame index, the unit of our time axis. This is signed because the
25 axis conceptually extends below zero: zero represents the start of
26 the main loaded audio model, not the start of time; a windowed
27 transform could legitimately produce results before then. We also
28 use this for frame counts, simply to avoid error-prone arithmetic
29 between signed and unsigned types.
30 */
31 typedef int64_t sv_frame_t;
32
33 /** Check whether an integer index is in range for a container,
34 avoiding overflows and signed/unsigned comparison warnings.
35 */
36 template<typename T, typename C>
in_range_for(const C & container,T i)37 bool in_range_for(const C &container, T i)
38 {
39 if (i < 0) return false;
40 if (sizeof(T) > sizeof(typename C::size_type)) {
41 return i < static_cast<T>(container.size());
42 } else {
43 return static_cast<typename C::size_type>(i) < container.size();
44 }
45 }
46
47 /** Sample rate. We have to deal with sample rates provided as float
48 or (unsigned) int types, so we might as well have a type that can
49 represent both. Storage size isn't an issue anyway.
50 */
51 typedef double sv_samplerate_t;
52
53 typedef std::vector<float, breakfastquay::StlAllocator<float>> floatvec_t;
54
55 typedef std::vector<std::complex<float>,
56 breakfastquay::StlAllocator<std::complex<float>>> complexvec_t;
57
58 typedef uint64_t sv_id_t;
59
60 enum {
61 ID_NOTHING = 0
62 };
63
64 #endif
65
66