1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
#include "AudioReaderOgg.h"
#if defined(WITH_VORBIS)
#if defined(DEATH_TARGET_WINDOWS) && !defined(CMAKE_BUILD) && !defined(WITH_VORBIS_DYNAMIC)
# if defined(_M_X64)
# pragma comment(lib, "../Libs/Windows/x64/libvorbisfile.lib")
# elif defined(_M_IX86)
# pragma comment(lib, "../Libs/Windows/x86/libvorbisfile.lib")
# else
# error Unsupported architecture
# endif
#endif
using namespace Death::IO;
namespace nCine
{
#if defined(WITH_VORBIS_DYNAMIC)
HMODULE AudioReaderOgg::_ovLib = nullptr;
bool AudioReaderOgg::_ovLibInitialized = false;
AudioReaderOgg::ov_clear_t* AudioReaderOgg::_ov_clear = nullptr;
AudioReaderOgg::ov_read_t* AudioReaderOgg::_ov_read = nullptr;
AudioReaderOgg::ov_raw_seek_t* AudioReaderOgg::_ov_raw_seek = nullptr;
AudioReaderOgg::ov_info_t* AudioReaderOgg::_ov_info = nullptr;
AudioReaderOgg::ov_open_callbacks_t* AudioReaderOgg::_ov_open_callbacks = nullptr;
AudioReaderOgg::ov_pcm_total_t* AudioReaderOgg::_ov_pcm_total = nullptr;
AudioReaderOgg::ov_time_total_t* AudioReaderOgg::_ov_time_total = nullptr;
#endif
AudioReaderOgg::AudioReaderOgg(std::unique_ptr<Stream> fileHandle, const OggVorbis_File& oggFile)
: fileHandle_(std::move(fileHandle)), oggFile_(oggFile)
{
DEATH_ASSERT(fileHandle_->IsValid());
}
AudioReaderOgg::~AudioReaderOgg()
{
#if defined(WITH_VORBIS_DYNAMIC)
_ov_clear(&oggFile_);
#else
ov_clear(&oggFile_);
#endif
}
std::int32_t AudioReaderOgg::read(void* buffer, std::int32_t bufferSize) const
{
std::int32_t bitStream = 0;
long bytes = 0;
std::int32_t bufferSeek = 0;
do {
// Read up to a buffer's worth of decoded sound data
// (0: little endian, 2: 16bit, 1: signed)
#if defined(WITH_VORBIS_DYNAMIC)
bytes = _ov_read(&oggFile_, static_cast<char*>(buffer) + bufferSeek, bufferSize - bufferSeek, 0, 2, 1, &bitStream);
#else
bytes = ov_read(&oggFile_, static_cast<char*>(buffer) + bufferSeek, bufferSize - bufferSeek, 0, 2, 1, &bitStream);
#endif
if (bytes < 0) {
#if defined(WITH_VORBIS_DYNAMIC)
_ov_clear(&oggFile_);
#else
ov_clear(&oggFile_);
#endif
LOGE("Error decoding at bitstream {}", bitStream);
}
// Reset the static variable at the end of a decoding process
if (bytes <= 0) {
bitStream = 0;
}
bufferSeek += bytes;
} while (bytes > 0 && bufferSize - bufferSeek > 0);
return bufferSeek;
}
void AudioReaderOgg::rewind() const
{
#if defined(WITH_VORBIS_DYNAMIC)
_ov_raw_seek(&oggFile_, 0);
#else
ov_raw_seek(&oggFile_, 0);
#endif
}
#if defined(WITH_VORBIS_DYNAMIC)
bool AudioReaderOgg::TryLoadLibrary()
{
if (_ovLibInitialized) {
return (_ovLib != nullptr);
}
_ovLibInitialized = true;
#if defined(WITH_OPENMPT)
const wchar_t* LibraryName = L"openmpt-vorbis.dll";
#else
const wchar_t* LibraryName = L"libvorbisfile.dll";
#endif
#if defined(DEATH_TARGET_WINDOWS_RT)
_ovLib = ::LoadPackagedLibrary(LibraryName, NULL);
#else
_ovLib = ::LoadLibrary(LibraryName);
#endif
if (_ovLib == nullptr) {
return false;
}
_ov_clear = (ov_clear_t*)::GetProcAddress(_ovLib, "ov_clear");
_ov_read = (ov_read_t*)::GetProcAddress(_ovLib, "ov_read");
_ov_raw_seek = (ov_raw_seek_t*)::GetProcAddress(_ovLib, "ov_raw_seek");
_ov_info = (ov_info_t*)::GetProcAddress(_ovLib, "ov_info");
_ov_open_callbacks = (ov_open_callbacks_t*)::GetProcAddress(_ovLib, "ov_open_callbacks");
_ov_pcm_total = (ov_pcm_total_t*)::GetProcAddress(_ovLib, "ov_pcm_total");
_ov_time_total = (ov_time_total_t*)::GetProcAddress(_ovLib, "ov_time_total");
if (_ov_clear == nullptr || _ov_read == nullptr || _ov_raw_seek == nullptr || _ov_info == nullptr ||
_ov_open_callbacks == nullptr || _ov_pcm_total == nullptr || _ov_time_total == nullptr) {
::FreeLibrary(_ovLib);
_ovLib = nullptr;
return false;
}
return true;
}
#endif
}
#endif
|
