alc/device.h

   1 #ifndef ALC_DEVICE_H
   2 #define ALC_DEVICE_H
   3
   4 #include <atomic>
   5 #include <memory>
   6 #include <mutex>
   7 #include <stdint.h>
   8 #include <string>
   9 #include <utility>
  10
  11 #include "AL/alc.h"
  12 #include "AL/alext.h"
  13
  14 #include "alconfig.h"
  15 #include "almalloc.h"
  16 #include "alnumeric.h"
  17 #include "core/device.h"
  18 #include "inprogext.h"
  19 #include "intrusive_ptr.h"
  20 #include "vector.h"
  21
  22 #ifdef ALSOFT_EAX
  23 #include "al/eax_x_ram.h"
  24 #endif // ALSOFT_EAX
  25
  26 struct ALbuffer;
  27 struct ALeffect;
  28 struct ALfilter;
  29 struct BackendBase;
  30
  31 using uint = unsigned int;
  32
  33
  34 struct BufferSubList {
  35     uint64_t FreeMask{~0_u64};
  36     ALbuffer *Buffers{nullptr}; /* 64 */
  37
  38     BufferSubList() noexcept = default;
  39     BufferSubList(const BufferSubList&) = delete;
  40     BufferSubList(BufferSubList&& rhs) noexcept : FreeMask{rhs.FreeMask}, Buffers{rhs.Buffers}
  41     { rhs.FreeMask = ~0_u64; rhs.Buffers = nullptr; }
  42     ~BufferSubList();
  43
  44     BufferSubList& operator=(const BufferSubList&) = delete;
  45     BufferSubList& operator=(BufferSubList&& rhs) noexcept
  46     { std::swap(FreeMask, rhs.FreeMask); std::swap(Buffers, rhs.Buffers); return *this; }
  47 };
  48
  49 struct EffectSubList {
  50     uint64_t FreeMask{~0_u64};
  51     ALeffect *Effects{nullptr}; /* 64 */
  52
  53     EffectSubList() noexcept = default;
  54     EffectSubList(const EffectSubList&) = delete;
  55     EffectSubList(EffectSubList&& rhs) noexcept : FreeMask{rhs.FreeMask}, Effects{rhs.Effects}
  56     { rhs.FreeMask = ~0_u64; rhs.Effects = nullptr; }
  57     ~EffectSubList();
  58
  59     EffectSubList& operator=(const EffectSubList&) = delete;
  60     EffectSubList& operator=(EffectSubList&& rhs) noexcept
  61     { std::swap(FreeMask, rhs.FreeMask); std::swap(Effects, rhs.Effects); return *this; }
  62 };
  63
  64 struct FilterSubList {
  65     uint64_t FreeMask{~0_u64};
  66     ALfilter *Filters{nullptr}; /* 64 */
  67
  68     FilterSubList() noexcept = default;
  69     FilterSubList(const FilterSubList&) = delete;
  70     FilterSubList(FilterSubList&& rhs) noexcept : FreeMask{rhs.FreeMask}, Filters{rhs.Filters}
  71     { rhs.FreeMask = ~0_u64; rhs.Filters = nullptr; }
  72     ~FilterSubList();
  73
  74     FilterSubList& operator=(const FilterSubList&) = delete;
  75     FilterSubList& operator=(FilterSubList&& rhs) noexcept
  76     { std::swap(FreeMask, rhs.FreeMask); std::swap(Filters, rhs.Filters); return *this; }
  77 };
  78
  79
  80 struct ALCdevice : public al::intrusive_ref<ALCdevice>, DeviceBase {
  81     /* This lock protects the device state (format, update size, etc) from
  82      * being from being changed in multiple threads, or being accessed while
  83      * being changed. It's also used to serialize calls to the backend.
  84      */
  85     std::mutex StateLock;
  86     std::unique_ptr<BackendBase> Backend;
  87
  88     ALCuint NumMonoSources{};
  89     ALCuint NumStereoSources{};
  90
  91     // Maximum number of sources that can be created
  92     uint SourcesMax{};
  93     // Maximum number of slots that can be created
  94     uint AuxiliaryEffectSlotMax{};
  95
  96     std::string mHrtfName;
  97     al::vector<std::string> mHrtfList;
  98     ALCenum mHrtfStatus{ALC_FALSE};
  99
 100     enum class OutputMode1 : ALCenum {
 101         Any = ALC_ANY_SOFT,
 102         Mono = ALC_MONO_SOFT,
 103         Stereo = ALC_STEREO_SOFT,
 104         StereoBasic = ALC_STEREO_BASIC_SOFT,
 105         Uhj2 = ALC_STEREO_UHJ_SOFT,
 106         Hrtf = ALC_STEREO_HRTF_SOFT,
 107         Quad = ALC_QUAD_SOFT,
 108         X51 = ALC_SURROUND_5_1_SOFT,
 109         X61 = ALC_SURROUND_6_1_SOFT,
 110         X71 = ALC_SURROUND_7_1_SOFT
 111     };
 112     OutputMode1 getOutputMode1() const noexcept;
 113
 114     using OutputMode = OutputMode1;
 115
 116     std::atomic<ALCenum> LastError{ALC_NO_ERROR};
 117
 118     // Map of Buffers for this device
 119     std::mutex BufferLock;
 120     al::vector<BufferSubList> BufferList;
 121
 122     // Map of Effects for this device
 123     std::mutex EffectLock;
 124     al::vector<EffectSubList> EffectList;
 125
 126     // Map of Filters for this device
 127     std::mutex FilterLock;
 128     al::vector<FilterSubList> FilterList;
 129
 130 #ifdef ALSOFT_EAX
 131     ALuint eax_x_ram_free_size{eax_x_ram_max_size};
 132 #endif // ALSOFT_EAX
 133
 134
 135     ALCdevice(DeviceType type);
 136     ~ALCdevice();
 137
 138     void enumerateHrtfs();
 139
 140     bool getConfigValueBool(const char *block, const char *key, bool def)
 141     { return GetConfigValueBool(DeviceName.c_str(), block, key, def); }
 142
 143     template<typename T>
 144     al::optional<T> configValue(const char *block, const char *key) = delete;
 145
 146     DEF_NEWDEL(ALCdevice)
 147 };
 148
 149 template<>
 150 inline al::optional<std::string> ALCdevice::configValue(const char *block, const char *key)
 151 { return ConfigValueStr(DeviceName.c_str(), block, key); }
 152 template<>
 153 inline al::optional<int> ALCdevice::configValue(const char *block, const char *key)
 154 { return ConfigValueInt(DeviceName.c_str(), block, key); }
 155 template<>
 156 inline al::optional<uint> ALCdevice::configValue(const char *block, const char *key)
 157 { return ConfigValueUInt(DeviceName.c_str(), block, key); }
 158 template<>
 159 inline al::optional<float> ALCdevice::configValue(const char *block, const char *key)
 160 { return ConfigValueFloat(DeviceName.c_str(), block, key); }
 161 template<>
 162 inline al::optional<bool> ALCdevice::configValue(const char *block, const char *key)
 163 { return ConfigValueBool(DeviceName.c_str(), block, key); }
 164
 165 #endif