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2502
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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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2541
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6 #include "Engine/Engine.h"
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7
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8 void log(char *format, ...)
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9 {
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10 va_list va;
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11 va_start(va, format);
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12 char msg[256];
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13 vsprintf(msg, format, va);
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14 va_end(va);
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15 DWORD w;
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16
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17 WriteConsoleA(GetStdHandle(STD_OUTPUT_HANDLE), msg, strlen(msg), &w, 0);
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18 }
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2502
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19
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20 class OpenALSoundProvider
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21 {
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22 public:
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23 struct TrackBuffer
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24 {
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25 unsigned int source_id;
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26 unsigned int buffer_id;
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27 };
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28
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29 struct StreamingTrackBuffer
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30 {
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31 unsigned int source_id;
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32 ALenum sample_format;
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33 int sample_rate;
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34 };
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35
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36 inline OpenALSoundProvider()
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37 {
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38 this->device = nullptr;
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39 this->context = nullptr;
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40 }
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41
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42 inline ~OpenALSoundProvider()
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43 {
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44 Release();
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45 }
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46
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47 inline bool Initialize()
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48 {
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49
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50 auto device_names = alcGetString(nullptr, ALC_ALL_DEVICES_SPECIFIER);
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51 if (!device_names)
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52 {
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53 device_names = alcGetString(nullptr, ALC_DEVICE_SPECIFIER);
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54 }
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55 if (device_names)
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56 {
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57 for (auto device_name = device_names; device_name[0]; device_name += strlen(device_name))
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58 {
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59 continue;
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60 }
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61 }
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62
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63 device = alcOpenDevice(nullptr);
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64 if (!device || CheckError())
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65 {
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66 Log::Warning(L"Default sound device not present");
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67 return false;
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68 }
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69
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70 context = alcCreateContext(device, nullptr);
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71 if (!context || CheckError())
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72 return Release(), false;
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73
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74 alcMakeContextCurrent(context);
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75
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76 bool eax2 = alIsExtensionPresent("EAX2.0");
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77 bool eax3 = alIsExtensionPresent("EAX3.0");
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78 bool eax4 = alIsExtensionPresent("EAX4.0");
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79 bool eax5 = alIsExtensionPresent("EAX5.0");
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80
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81 auto vendor = alGetString(AL_VENDOR);
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82 auto version = alGetString(AL_VERSION);
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83 auto extensions = alcGetString(device, ALC_EXTENSIONS);
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84
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85 return true;
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86 }
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87
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88 void Release()
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89 {
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90 alcMakeContextCurrent(nullptr);
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91 if (context)
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92 {
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93 alcDestroyContext(context);
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94 }
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95 if (device)
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96 {
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97 alcCloseDevice(device);
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98 }
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99 }
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100
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101 void DeleteStreamingTrack(StreamingTrackBuffer **buffer)
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102 {
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103 if (!buffer && !*buffer)
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104 return;
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105 auto track = *buffer;
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106
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107 int status;
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108 alGetSourcei(track->source_id, AL_SOURCE_STATE, &status);
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109 if (status == AL_PLAYING)
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110 {
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111 alSourceStop(track->source_id);
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112 if (CheckError()) __debugbreak();
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113 }
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114
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115 int num_processed_buffers = 0;
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116 int num_queued_buffers = 0;
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117 alGetSourcei(track->source_id, AL_BUFFERS_PROCESSED, &num_processed_buffers);
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118 alGetSourcei(track->source_id, AL_BUFFERS_QUEUED, &num_queued_buffers);
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119 int num_track_buffers = num_queued_buffers + num_processed_buffers;
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120 for (int i = 0; i < num_processed_buffers; ++i)
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121 {
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122 unsigned int buffer_id;
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123 alSourceUnqueueBuffers(track->source_id, 1, &buffer_id);
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124 if (!CheckError())
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125 alDeleteBuffers(1, &buffer_id);
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126 else __debugbreak();
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127 }
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128
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129 alDeleteSources(1, &track->source_id);
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130 CheckError();
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131
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132 delete *buffer;
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133 *buffer = nullptr;
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134 }
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135
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136 void DeleteBuffer16(TrackBuffer **buffer)
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137 {
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138 alDeleteBuffers(1, &(*buffer)->buffer_id);
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139 CheckError();
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140
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141 delete *buffer;
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142 *buffer = nullptr;
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143 }
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144
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145 float alBufferLength(unsigned int buffer)
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146 {
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147 int size, bits, channels, freq;
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148
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149 alGetBufferi(buffer, AL_SIZE, &size);
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150 alGetBufferi(buffer, AL_BITS, &bits);
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151 alGetBufferi(buffer, AL_CHANNELS, &channels);
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152 alGetBufferi(buffer, AL_FREQUENCY, &freq);
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153 if (CheckError())
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154 return 0.0f;
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155
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156 return (ALfloat)((ALuint)size / channels / (bits / 8)) / (ALfloat)freq;
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157 }
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158
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159 StreamingTrackBuffer *CreateStreamingTrack16(int num_channels, int sample_rate, int bytes_per_sample)
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160 {
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161 Assert(bytes_per_sample == 2, "OpenALSoundProvider: unsupported sample size: %u", bytes_per_sample);
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162
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163 ALenum sound_format;
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164 switch (num_channels)
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165 {
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166 case 1: sound_format = AL_FORMAT_MONO16; break;
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167 case 2: sound_format = AL_FORMAT_STEREO16; break;
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168 default:
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169 if (bool multichannel = alIsExtensionPresent("AL_EXT_MCFORMATS"))
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170 {
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171 switch (num_channels)
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172 {
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173 case 4: sound_format = alGetEnumValue("AL_FORMAT_QUAD16"); break;
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174 case 6: sound_format = alGetEnumValue("AL_FORMAT_51CHN16"); break;
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175 case 7: sound_format = alGetEnumValue("AL_FORMAT_61CHN16"); break;
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176 case 8: sound_format = alGetEnumValue("AL_FORMAT_71CHN16"); break;
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177 }
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178 }
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179 Error("Unsupported number of audio channels: %u", num_channels);
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180 }
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181
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182 unsigned int al_source = -1;
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183 alGetError();
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184 alGenSources(1, &al_source);
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185 if (CheckError())
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186 return nullptr;
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187
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188 float sound_pos[] = {0.0f, 0.0f, 0.0f},
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189 sound_vel[] = {0.0f, 0.0f, 0.0f};
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190
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191 alSourcei(al_source, AL_LOOPING, AL_FALSE);
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192 alSourcef(al_source, AL_PITCH, 1.0f);
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193 alSourcef(al_source, AL_GAIN, 1.0f);
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194 alSourcefv(al_source, AL_POSITION, sound_pos);
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195 alSourcefv(al_source, AL_VELOCITY, sound_vel);
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196
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197 auto ret = new StreamingTrackBuffer;
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198 ret->source_id = al_source;
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199 ret->sample_format = sound_format;
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200 ret->sample_rate = sample_rate;
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201 return ret;
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202 }
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203
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204 void Stream16(StreamingTrackBuffer *buffer, int num_samples, const void *samples, bool wait = false)
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205 {
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206 int bytes_per_sample = 2;
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207
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208 unsigned int al_buffer;
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209 alGenBuffers(1, &al_buffer);
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210 alBufferData(al_buffer, buffer->sample_format, samples, num_samples * bytes_per_sample, buffer->sample_rate);
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211 if (CheckError())
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212 {
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213 alDeleteBuffers(1, &al_buffer);
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214 return;
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215 }
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216
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217 int num_processed_buffers = 0;
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218 alGetSourcei(buffer->source_id, AL_BUFFERS_PROCESSED, &num_processed_buffers);
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219 for (int i = 0; i < num_processed_buffers; ++i)
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220 {
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221 unsigned int processed_buffer_id;
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222 alSourceUnqueueBuffers(buffer->source_id, 1, &processed_buffer_id);
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223 if (!CheckError())
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224 alDeleteBuffers(1, &processed_buffer_id);
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225 }
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226
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227 alSourceQueueBuffers(buffer->source_id, 1, &al_buffer);
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228 if (CheckError())
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229 {
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230 alDeleteBuffers(1, &al_buffer);
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231 return;
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232 }
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233
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234 volatile int status;
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235 alGetSourcei(buffer->source_id, AL_SOURCE_STATE, (int *)&status);
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236 if (status != AL_PLAYING)
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237 {
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238 float listener_pos[] = {0.0f, 0.0f, 0.0f};
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239 float listener_vel[] = {0.0f, 0.0f, 0.0f};
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240 float listener_orientation[] = {0.0f, 0.0f, -1.0f, // direction
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241 0.0f, 1.0f, 0.0f}; // up vector
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242 alListenerfv(AL_POSITION, listener_pos);
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243 alListenerfv(AL_VELOCITY, listener_vel);
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244 alListenerfv(AL_ORIENTATION, listener_orientation);
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245
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246 alSourcePlay(buffer->source_id);
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247 if (CheckError())
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248 __debugbreak();
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249
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250 if (wait)
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251 {
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252 do
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253 {
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254 alGetSourcei(buffer->source_id, AL_SOURCE_STATE, (int *)&status);
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255 }
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256 while (status == AL_PLAYING);
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257 }
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258 }
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259 }
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260
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261
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262
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263
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264 TrackBuffer *CreateTrack16(int num_channels, int sample_rate, int bytes_per_sample, int num_samples, const void *samples)
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265 {
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266 Assert(bytes_per_sample == 2, "OpenALSoundProvider: unsupported sample size: %u", bytes_per_sample);
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267
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268 ALenum sound_format;
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269 switch (num_channels)
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270 {
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271 case 1: sound_format = AL_FORMAT_MONO16; break;
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272 case 2: sound_format = AL_FORMAT_STEREO16; break;
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273 default:
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274 if (bool multichannel = alIsExtensionPresent("AL_EXT_MCFORMATS"))
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275 {
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276 switch (num_channels)
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277 {
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278 case 4: sound_format = alGetEnumValue("AL_FORMAT_QUAD16"); break;
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279 case 6: sound_format = alGetEnumValue("AL_FORMAT_51CHN16"); break;
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280 case 7: sound_format = alGetEnumValue("AL_FORMAT_61CHN16"); break;
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281 case 8: sound_format = alGetEnumValue("AL_FORMAT_71CHN16"); break;
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282 }
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283 }
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284 Error("Unsupported number of audio channels: %u", num_channels);
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285 }
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286
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287 unsigned int al_source = -1;
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288 alGenSources(1, &al_source);
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289 if (CheckError())
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290 return nullptr;
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291
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292 float sound_pos[] = {0.0f, 0.0f, 0.0f},
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293 sound_vel[] = {0.0f, 0.0f, 0.0f};
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294
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295 alSourcei(al_source, AL_LOOPING, AL_FALSE);
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296 alSourcef(al_source, AL_PITCH, 1.0f);
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297 alSourcef(al_source, AL_GAIN, 1.0f);
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298 alSourcefv(al_source, AL_POSITION, sound_pos);
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299 alSourcefv(al_source, AL_VELOCITY, sound_vel);
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300
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301 unsigned int al_buffer = -1;
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302 alGenBuffers(1, &al_buffer);
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303 if (CheckError())
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304 {
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305 alDeleteSources(1, &al_source);
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306 return nullptr;
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307 }
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308
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309 alBufferData(al_buffer, sound_format, samples, num_samples * bytes_per_sample, sample_rate);
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310 if (CheckError())
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311 {
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312 alDeleteSources(1, &al_source);
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313 alDeleteBuffers(1, &al_buffer);
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314 return nullptr;
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315 }
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316
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317 alSourcei(al_source, AL_BUFFER, al_buffer);
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318 if (CheckError())
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319 {
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320 alDeleteSources(1, &al_source);
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321 alDeleteBuffers(1, &al_buffer);
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322 return nullptr;
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323 }
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324
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325 auto ret = new TrackBuffer;
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326 ret->source_id = al_source;
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327 ret->buffer_id = al_buffer;
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328 return ret;
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329 }
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330
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331
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332 void PlayTrack16(TrackBuffer *buffer, bool loop = false, bool wait = false)
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333 {
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334 volatile int status;
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335 alGetSourcei(buffer->source_id, AL_SOURCE_STATE, (int *)&status);
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336 if (status == AL_PLAYING)
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337 Error("Already playing");
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338 else
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339 {
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340 float listener_pos[] = {0.0f, 0.0f, 0.0f};
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341 float listener_vel[] = {0.0f, 0.0f, 0.0f};
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342 float listener_orientation[] = {0.0f, 0.0f, -1.0f, // direction
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343 0.0f, 1.0f, 0.0f}; // up vector
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344 alListenerfv(AL_POSITION, listener_pos);
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345 alListenerfv(AL_VELOCITY, listener_vel);
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346 alListenerfv(AL_ORIENTATION, listener_orientation);
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347
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348 alSourcei(buffer->source_id, AL_LOOPING, loop ? AL_TRUE : AL_FALSE);
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349 alSourcePlay(buffer->source_id);
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350 if (CheckError())
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351 __debugbreak();
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352
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353 if (wait && !loop)
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354 {
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355 float track_length = alBufferLength(buffer->buffer_id);
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356 do
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357 {
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358 float track_offset = 0;
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359 alGetSourcef(buffer->source_id, AL_SEC_OFFSET, &track_offset);
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360 log("playing: %.4f/%.4f\n", track_offset, track_length);
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361
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362 alGetSourcei(buffer->source_id, AL_SOURCE_STATE, (int *)&status);
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363 }
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364 while (status == AL_PLAYING);
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365 }
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366 }
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367 }
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368
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369
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370
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371 protected:
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372 ALCdevice *device;
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373 ALCcontext *context;
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374
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375
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376 bool CheckError()
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377 {
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378 ALenum code1 = alGetError();
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379 if (code1 != AL_NO_ERROR)
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380 {
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381 DWORD w;
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382 const char *message = alGetString(code1);
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383 WriteConsoleA(GetStdHandle(STD_OUTPUT_HANDLE), message, lstrlenA(message), &w, nullptr);
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384 WriteConsoleA(GetStdHandle(STD_OUTPUT_HANDLE), "\n", 1, &w, nullptr);
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385 return true;
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386 }
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387
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388 ALenum code2 = alcGetError(device);
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389 if (code2 != ALC_NO_ERROR)
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390 {
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391 DWORD w;
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392 const char *message = alcGetString(device, code2);
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393 WriteConsoleA(GetStdHandle(STD_OUTPUT_HANDLE), message, lstrlenA(message), &w, nullptr);
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394 WriteConsoleA(GetStdHandle(STD_OUTPUT_HANDLE), "\n", 1, &w, nullptr);
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395 return true;
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396 }
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397 return false;
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398 }
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399 }; |
