1 | /* |
---|
2 | orxonox - the future of 3D-vertical-scrollers |
---|
3 | |
---|
4 | Copyright (C) 2004 orx |
---|
5 | |
---|
6 | This program is free software; you can redistribute it and/or modify |
---|
7 | it under the terms of the GNU General Public License as published by |
---|
8 | the Free Software Foundation; either version 2, or (at your option) |
---|
9 | any later version. |
---|
10 | |
---|
11 | ### File Specific: |
---|
12 | main-programmer: Benjamin Grauer |
---|
13 | co-programmer: ... |
---|
14 | */ |
---|
15 | |
---|
16 | #define DEBUG_SPECIAL_MODULE DEBUG_MODULE_SOUND |
---|
17 | |
---|
18 | #include "sound_buffer_data.h" |
---|
19 | |
---|
20 | #include "sound_engine.h" |
---|
21 | |
---|
22 | #include "sdlincl.h" |
---|
23 | #include <cassert> |
---|
24 | #include "debug.h" |
---|
25 | #include "sys/stat.h" |
---|
26 | #include "helper_functions.h" |
---|
27 | |
---|
28 | #ifdef HAVE_SDL_SDL_H |
---|
29 | #include <SDL/SDL.h> |
---|
30 | #include <SDL/SDL_endian.h> |
---|
31 | #else |
---|
32 | #include <SDL.h> |
---|
33 | #include <SDL_endian.h> |
---|
34 | #endif |
---|
35 | namespace OrxSound |
---|
36 | { |
---|
37 | ObjectListDefinition(SoundBufferData); |
---|
38 | ////////////////// |
---|
39 | /* SOUND-BUFFER */ |
---|
40 | ////////////////// |
---|
41 | /** |
---|
42 | * @brief Creates a SoundbufferData out of an inputfile |
---|
43 | * @param fileName The name of the File |
---|
44 | */ |
---|
45 | SoundBufferData::SoundBufferData() |
---|
46 | { |
---|
47 | this->registerObject(this, SoundBufferData::_objectList); |
---|
48 | this->bufferID = 0; |
---|
49 | |
---|
50 | this->size = 0; |
---|
51 | this->loop = AL_FALSE; |
---|
52 | |
---|
53 | |
---|
54 | } |
---|
55 | |
---|
56 | SoundBufferData::~SoundBufferData() |
---|
57 | { |
---|
58 | // SoundEngine::getInstance()->removeBuffer(this); |
---|
59 | alDeleteBuffers(1, &this->bufferID); |
---|
60 | SoundEngine::checkError("SoundBuffer: Delete Buffer", __LINE__); |
---|
61 | } |
---|
62 | |
---|
63 | /** |
---|
64 | * @brief check the File-extension and loads either Wav of Ogg |
---|
65 | * @param fileName the Name of the File to load. |
---|
66 | * @returns true on success (file found, and loaded.) |
---|
67 | */ |
---|
68 | bool SoundBufferData::load(const std::string& fileName) |
---|
69 | { |
---|
70 | // generate a Buffer |
---|
71 | alGenBuffers(1, &this->bufferID); |
---|
72 | SoundEngine::checkError("Generate Buffer", __LINE__); |
---|
73 | if (!nocaseCmp(fileName.substr(fileName.size() - 3), "WAV")) |
---|
74 | { |
---|
75 | return this->loadWAV(fileName); |
---|
76 | } |
---|
77 | else if (!nocaseCmp(fileName.substr(fileName.size() - 3), "OGG")) |
---|
78 | return this->loadOGG(fileName); |
---|
79 | else |
---|
80 | return false; |
---|
81 | } |
---|
82 | |
---|
83 | /** |
---|
84 | * @brief loads a Waveform from the local fileSystem into this Source. |
---|
85 | * @param fileName the Name of the File to Load. |
---|
86 | * @returns true on success. |
---|
87 | */ |
---|
88 | bool SoundBufferData::loadWAV(const std::string& fileName) |
---|
89 | { |
---|
90 | SDL_AudioSpec wavSpec; |
---|
91 | Uint32 wavLength; |
---|
92 | Uint8 *wavBuffer; |
---|
93 | |
---|
94 | /* Load the WAV */ |
---|
95 | if( SDL_LoadWAV(fileName.c_str(), &wavSpec, &wavBuffer, &wavLength) == NULL) |
---|
96 | { |
---|
97 | PRINTF(2)("Could not open %s: %s\n", fileName.c_str(), SDL_GetError()); |
---|
98 | return false; |
---|
99 | } |
---|
100 | #if SDL_BYTEORDER == SDL_BIG_ENDIAN |
---|
101 | if ( !( wavSpec.format == AUDIO_U8 || wavSpec.format == AUDIO_S8 ) ) |
---|
102 | { |
---|
103 | int cnt = wavLength/2; |
---|
104 | Uint16* wavBufferAsShorts = ( Uint16* )wavBuffer; |
---|
105 | for ( int i = 0; i < cnt; ++i, ++wavBufferAsShorts ) |
---|
106 | *wavBufferAsShorts = SDL_Swap16( *wavBufferAsShorts ); |
---|
107 | } |
---|
108 | #endif |
---|
109 | alBufferData(this->bufferID, SoundBufferData::sdlAudioSpecToAlFormat(&wavSpec), |
---|
110 | wavBuffer, wavLength, wavSpec.freq); |
---|
111 | |
---|
112 | SDL_FreeWAV(wavBuffer); |
---|
113 | if (SoundEngine::checkError("Could not load Wave file", __LINE__)) |
---|
114 | return true; |
---|
115 | else |
---|
116 | return false; |
---|
117 | } |
---|
118 | |
---|
119 | |
---|
120 | #ifndef AL_FORMAT_VORBIS_EXT |
---|
121 | #define AL_FORMAT_VORBIS_EXT 0x100030 |
---|
122 | #endif |
---|
123 | /** |
---|
124 | * @brief loads an OGG-file into a SOundBuffer |
---|
125 | * @param fileName the Name of the File to load. |
---|
126 | * @returns true on success (file exists and is fully loaded), false otherwise. |
---|
127 | */ |
---|
128 | bool SoundBufferData::loadOGG(const std::string& fileName) |
---|
129 | { |
---|
130 | void* ovdata; |
---|
131 | FILE* fh; |
---|
132 | |
---|
133 | fh = fopen( fileName.c_str() , "rb") ; |
---|
134 | if( fh != NULL ) |
---|
135 | { |
---|
136 | struct stat sbuf ; |
---|
137 | |
---|
138 | if(stat( fileName.c_str(), &sbuf ) != -1) |
---|
139 | { |
---|
140 | ovdata = malloc(sbuf.st_size); |
---|
141 | if(ovdata != NULL) |
---|
142 | { |
---|
143 | fread( ovdata, 1, sbuf.st_size, fh); |
---|
144 | |
---|
145 | alBufferData( this->bufferID, |
---|
146 | AL_FORMAT_VORBIS_EXT, |
---|
147 | ovdata, |
---|
148 | sbuf.st_size, |
---|
149 | 1) ; |
---|
150 | SoundEngine::checkError("Could not load OGG file", __LINE__); |
---|
151 | |
---|
152 | free(ovdata); |
---|
153 | } |
---|
154 | fclose(fh); |
---|
155 | } |
---|
156 | else |
---|
157 | return false; |
---|
158 | } |
---|
159 | else |
---|
160 | return false; |
---|
161 | |
---|
162 | return true ; |
---|
163 | |
---|
164 | } |
---|
165 | |
---|
166 | |
---|
167 | /** |
---|
168 | * @brief converts an SDL_AudioSpec into a valid OpenAL AUDIO_FORMAT enumerator |
---|
169 | * @param audiospec the AudioSpec to convert. |
---|
170 | * @returns the AL_FORMAT |
---|
171 | */ |
---|
172 | ALenum SoundBufferData::sdlAudioSpecToAlFormat(const SDL_AudioSpec* audiospec) |
---|
173 | { |
---|
174 | assert (audiospec != NULL); |
---|
175 | bool stereo = true; |
---|
176 | bool is16Bit = true; |
---|
177 | if (audiospec->format == AUDIO_U8 || audiospec->format == AUDIO_S8) |
---|
178 | is16Bit = false; |
---|
179 | if (audiospec->channels == 1) |
---|
180 | stereo = false; |
---|
181 | |
---|
182 | if (!stereo && !is16Bit) |
---|
183 | return AL_FORMAT_MONO8; |
---|
184 | else if (!stereo && is16Bit) |
---|
185 | return AL_FORMAT_MONO16; |
---|
186 | else if (stereo && !is16Bit) |
---|
187 | return AL_FORMAT_STEREO8; |
---|
188 | else /* if (stereo && is16Bit) */ |
---|
189 | return AL_FORMAT_STEREO16; |
---|
190 | } |
---|
191 | } |
---|