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2315
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1 #pragma once
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2 #include "lib/OpenAL/al.h"
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3 #include "lib/OpenAL/alc.h"
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4 #pragma comment(lib, "OpenAL32.lib")
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5
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6 #include "stuff.h"
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2487
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7 #include "Log.h"
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2315
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8
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9 class OpenALSoundProvider
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10 {
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11 public:
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12 struct TrackBuffer
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13 {
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14 unsigned int source_id;
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15 unsigned int buffer_id;
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16 };
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17
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18 struct StreamingTrackBuffer
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19 {
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20 unsigned int source_id;
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21 ALenum sample_format;
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22 int sample_rate;
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23 };
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24
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25 inline OpenALSoundProvider()
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26 {
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27 this->device = nullptr;
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28 this->context = nullptr;
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29 }
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30
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2440
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31 inline ~OpenALSoundProvider()
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32 {
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33 Release();
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34 }
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35
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2315
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36 inline bool Initialize()
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37 {
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2440
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38
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2315
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39 auto device_names = alcGetString(nullptr, ALC_ALL_DEVICES_SPECIFIER);
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40 if (!device_names)
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2440
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41 {
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2315
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42 device_names = alcGetString(nullptr, ALC_DEVICE_SPECIFIER);
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2440
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43 }
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2315
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44 if (device_names)
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45 {
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46 for (auto device_name = device_names; device_name[0]; device_name += strlen(device_name))
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47 {
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48 continue;
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49 }
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50 }
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51
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52 device = alcOpenDevice(nullptr);
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53 if (!device || CheckError())
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2487
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54 {
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55 Log::Warning(L"Default sound device not present");
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2315
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56 return false;
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2487
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57 }
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2315
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58
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59 context = alcCreateContext(device, nullptr);
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60 if (!context || CheckError())
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61 return Release(), false;
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62
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63 alcMakeContextCurrent(context);
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64
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65 bool eax2 = alIsExtensionPresent("EAX2.0");
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66 bool eax3 = alIsExtensionPresent("EAX3.0");
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67 bool eax4 = alIsExtensionPresent("EAX4.0");
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68 bool eax5 = alIsExtensionPresent("EAX5.0");
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69
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70 auto vendor = alGetString(AL_VENDOR);
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71 auto version = alGetString(AL_VERSION);
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72 auto extensions = alcGetString(device, ALC_EXTENSIONS);
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73
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74 return true;
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75 }
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76
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77 void Release()
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78 {
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79 alcMakeContextCurrent(nullptr);
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80 if (context)
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81 {
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82 alcDestroyContext(context);
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83 }
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84 if (device)
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85 {
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86 alcCloseDevice(device);
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87 }
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88 }
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89
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2431
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90 void DeleteStreamingTrack(StreamingTrackBuffer **buffer)
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91 {
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92 if (!buffer && !*buffer)
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93 return;
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94 auto track = *buffer;
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95
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96 int status;
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97 alGetSourcei(track->source_id, AL_SOURCE_STATE, &status);
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98 if (status == AL_PLAYING)
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99 {
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100 alSourceStop(track->source_id);
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101 if (CheckError()) __debugbreak();
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102 }
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103
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104 int num_processed_buffers = 0;
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105 int num_queued_buffers = 0;
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106 alGetSourcei(track->source_id, AL_BUFFERS_PROCESSED, &num_processed_buffers);
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107 alGetSourcei(track->source_id, AL_BUFFERS_QUEUED, &num_queued_buffers);
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108 int num_track_buffers = num_queued_buffers + num_processed_buffers;
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109 for (int i = 0; i < num_processed_buffers; ++i)
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110 {
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111 unsigned int buffer_id;
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112 alSourceUnqueueBuffers(track->source_id, 1, &buffer_id);
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113 if (!CheckError())
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114 alDeleteBuffers(1, &buffer_id);
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115 else __debugbreak();
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116 }
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117
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118 alDeleteSources(1, &track->source_id);
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119 CheckError();
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120
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121 delete *buffer;
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122 *buffer = nullptr;
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123 }
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2315
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124
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125 void DeleteBuffer16(TrackBuffer **buffer)
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126 {
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127 alDeleteBuffers(1, &(*buffer)->buffer_id);
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128 CheckError();
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129
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130 delete *buffer;
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131 *buffer = nullptr;
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132 }
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133
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134 float alBufferLength(unsigned int buffer)
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135 {
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136 int size, bits, channels, freq;
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137
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138 alGetBufferi(buffer, AL_SIZE, &size);
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139 alGetBufferi(buffer, AL_BITS, &bits);
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140 alGetBufferi(buffer, AL_CHANNELS, &channels);
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141 alGetBufferi(buffer, AL_FREQUENCY, &freq);
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142 if (CheckError())
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143 return 0.0f;
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144
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145 return (ALfloat)((ALuint)size / channels / (bits / 8)) / (ALfloat)freq;
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146 }
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147
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148 StreamingTrackBuffer *CreateStreamingTrack16(int num_channels, int sample_rate, int bytes_per_sample)
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149 {
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150 Assert(bytes_per_sample == 2, "OpenALSoundProvider: unsupported sample size: %u", bytes_per_sample);
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151
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152 ALenum sound_format;
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153 switch (num_channels)
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154 {
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155 case 1: sound_format = AL_FORMAT_MONO16; break;
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156 case 2: sound_format = AL_FORMAT_STEREO16; break;
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157 default:
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158 if (bool multichannel = alIsExtensionPresent("AL_EXT_MCFORMATS"))
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159 {
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160 switch (num_channels)
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161 {
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162 case 4: sound_format = alGetEnumValue("AL_FORMAT_QUAD16"); break;
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163 case 6: sound_format = alGetEnumValue("AL_FORMAT_51CHN16"); break;
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164 case 7: sound_format = alGetEnumValue("AL_FORMAT_61CHN16"); break;
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165 case 8: sound_format = alGetEnumValue("AL_FORMAT_71CHN16"); break;
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166 }
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167 }
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168 Error("Unsupported number of audio channels: %u", num_channels);
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169 }
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170
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171 unsigned int al_source = -1;
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2432
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172 alGetError();
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2315
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173 alGenSources(1, &al_source);
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174 if (CheckError())
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175 return nullptr;
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176
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177 float sound_pos[] = {0.0f, 0.0f, 0.0f},
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178 sound_vel[] = {0.0f, 0.0f, 0.0f};
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179
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180 alSourcei(al_source, AL_LOOPING, AL_FALSE);
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181 alSourcef(al_source, AL_PITCH, 1.0f);
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182 alSourcef(al_source, AL_GAIN, 1.0f);
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183 alSourcefv(al_source, AL_POSITION, sound_pos);
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184 alSourcefv(al_source, AL_VELOCITY, sound_vel);
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185
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186 auto ret = new StreamingTrackBuffer;
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187 ret->source_id = al_source;
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188 ret->sample_format = sound_format;
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189 ret->sample_rate = sample_rate;
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190 return ret;
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191 }
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192
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193 void Stream16(StreamingTrackBuffer *buffer, int num_samples, const void *samples, bool wait = false)
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194 {
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195 int bytes_per_sample = 2;
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196
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197 unsigned int al_buffer;
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198 alGenBuffers(1, &al_buffer);
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199 alBufferData(al_buffer, buffer->sample_format, samples, num_samples * bytes_per_sample, buffer->sample_rate);
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200 if (CheckError())
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201 {
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202 alDeleteBuffers(1, &al_buffer);
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203 return;
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204 }
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205
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206 int num_processed_buffers = 0;
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207 alGetSourcei(buffer->source_id, AL_BUFFERS_PROCESSED, &num_processed_buffers);
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208 for (int i = 0; i < num_processed_buffers; ++i)
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209 {
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210 unsigned int processed_buffer_id;
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211 alSourceUnqueueBuffers(buffer->source_id, 1, &processed_buffer_id);
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212 if (!CheckError())
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213 alDeleteBuffers(1, &processed_buffer_id);
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214 }
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215
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216 alSourceQueueBuffers(buffer->source_id, 1, &al_buffer);
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217 if (CheckError())
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218 {
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219 alDeleteBuffers(1, &al_buffer);
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220 return;
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221 }
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222
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223 volatile int status;
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224 alGetSourcei(buffer->source_id, AL_SOURCE_STATE, (int *)&status);
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225 if (status != AL_PLAYING)
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226 {
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227 float listener_pos[] = {0.0f, 0.0f, 0.0f};
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228 float listener_vel[] = {0.0f, 0.0f, 0.0f};
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229 float listener_orientation[] = {0.0f, 0.0f, -1.0f, // direction
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230 0.0f, 1.0f, 0.0f}; // up vector
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231 alListenerfv(AL_POSITION, listener_pos);
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232 alListenerfv(AL_VELOCITY, listener_vel);
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233 alListenerfv(AL_ORIENTATION, listener_orientation);
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234
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235 alSourcePlay(buffer->source_id);
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236 if (CheckError())
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237 __debugbreak();
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238
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239 if (wait)
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240 {
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241 do
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242 {
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243 alGetSourcei(buffer->source_id, AL_SOURCE_STATE, (int *)&status);
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244 }
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245 while (status == AL_PLAYING);
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246 }
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247 }
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248 }
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249
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250
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251
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252
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253 TrackBuffer *CreateTrack16(int num_channels, int sample_rate, int bytes_per_sample, int num_samples, const void *samples)
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254 {
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255 Assert(bytes_per_sample == 2, "OpenALSoundProvider: unsupported sample size: %u", bytes_per_sample);
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256
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257 ALenum sound_format;
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258 switch (num_channels)
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259 {
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260 case 1: sound_format = AL_FORMAT_MONO16; break;
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261 case 2: sound_format = AL_FORMAT_STEREO16; break;
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262 default:
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263 if (bool multichannel = alIsExtensionPresent("AL_EXT_MCFORMATS"))
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264 {
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265 switch (num_channels)
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266 {
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267 case 4: sound_format = alGetEnumValue("AL_FORMAT_QUAD16"); break;
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268 case 6: sound_format = alGetEnumValue("AL_FORMAT_51CHN16"); break;
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269 case 7: sound_format = alGetEnumValue("AL_FORMAT_61CHN16"); break;
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270 case 8: sound_format = alGetEnumValue("AL_FORMAT_71CHN16"); break;
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271 }
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272 }
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273 Error("Unsupported number of audio channels: %u", num_channels);
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274 }
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275
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276 unsigned int al_source = -1;
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277 alGenSources(1, &al_source);
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278 if (CheckError())
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279 return nullptr;
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280
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281 float sound_pos[] = {0.0f, 0.0f, 0.0f},
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282 sound_vel[] = {0.0f, 0.0f, 0.0f};
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283
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284 alSourcei(al_source, AL_LOOPING, AL_FALSE);
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285 alSourcef(al_source, AL_PITCH, 1.0f);
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286 alSourcef(al_source, AL_GAIN, 1.0f);
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287 alSourcefv(al_source, AL_POSITION, sound_pos);
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288 alSourcefv(al_source, AL_VELOCITY, sound_vel);
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289
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290 unsigned int al_buffer = -1;
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291 alGenBuffers(1, &al_buffer);
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292 if (CheckError())
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293 {
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294 alDeleteSources(1, &al_source);
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295 return nullptr;
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296 }
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297
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298 alBufferData(al_buffer, sound_format, samples, num_samples * bytes_per_sample, sample_rate);
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299 if (CheckError())
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300 {
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301 alDeleteSources(1, &al_source);
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302 alDeleteBuffers(1, &al_buffer);
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303 return nullptr;
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304 }
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305
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306 alSourcei(al_source, AL_BUFFER, al_buffer);
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307 if (CheckError())
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308 {
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309 alDeleteSources(1, &al_source);
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310 alDeleteBuffers(1, &al_buffer);
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311 return nullptr;
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312 }
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313
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314 auto ret = new TrackBuffer;
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315 ret->source_id = al_source;
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316 ret->buffer_id = al_buffer;
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317 return ret;
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318 }
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319
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320
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321 void PlayTrack16(TrackBuffer *buffer, bool loop = false, bool wait = false)
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322 {
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323 volatile int status;
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324 alGetSourcei(buffer->source_id, AL_SOURCE_STATE, (int *)&status);
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325 if (status == AL_PLAYING)
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326 Error("Already playing");
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327 else
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328 {
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329 float listener_pos[] = {0.0f, 0.0f, 0.0f};
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330 float listener_vel[] = {0.0f, 0.0f, 0.0f};
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331 float listener_orientation[] = {0.0f, 0.0f, -1.0f, // direction
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332 0.0f, 1.0f, 0.0f}; // up vector
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333 alListenerfv(AL_POSITION, listener_pos);
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334 alListenerfv(AL_VELOCITY, listener_vel);
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335 alListenerfv(AL_ORIENTATION, listener_orientation);
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336
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337 alSourcei(buffer->source_id, AL_LOOPING, loop ? AL_TRUE : AL_FALSE);
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338 alSourcePlay(buffer->source_id);
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339 if (CheckError())
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340 __debugbreak();
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341
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342 if (wait && !loop)
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343 {
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344 float track_length = alBufferLength(buffer->buffer_id);
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345 do
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346 {
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347 float track_offset = 0;
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348 alGetSourcef(buffer->source_id, AL_SEC_OFFSET, &track_offset);
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349 log("playing: %.4f/%.4f\n", track_offset, track_length);
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350
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351 alGetSourcei(buffer->source_id, AL_SOURCE_STATE, (int *)&status);
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352 }
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353 while (status == AL_PLAYING);
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354 }
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355 }
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356 }
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357
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358
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359
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360 protected:
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361 ALCdevice *device;
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362 ALCcontext *context;
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363
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364
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365 bool CheckError()
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366 {
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367 ALenum code1 = alGetError();
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368 if (code1 != AL_NO_ERROR)
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369 {
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370 DWORD w;
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371 const char *message = alGetString(code1);
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372 WriteConsoleA(GetStdHandle(STD_OUTPUT_HANDLE), message, lstrlenA(message), &w, nullptr);
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373 WriteConsoleA(GetStdHandle(STD_OUTPUT_HANDLE), "\n", 1, &w, nullptr);
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374 return true;
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375 }
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376
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377 ALenum code2 = alcGetError(device);
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378 if (code2 != ALC_NO_ERROR)
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379 {
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380 DWORD w;
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381 const char *message = alcGetString(device, code2);
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382 WriteConsoleA(GetStdHandle(STD_OUTPUT_HANDLE), message, lstrlenA(message), &w, nullptr);
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383 WriteConsoleA(GetStdHandle(STD_OUTPUT_HANDLE), "\n", 1, &w, nullptr);
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384 return true;
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385 }
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386 return false;
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387 }
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388 }; |
