al/buffer.h

   1 #ifndef AL_BUFFER_H
   2 #define AL_BUFFER_H
   3
   4 #include <array>
   5 #include <atomic>
   6 #include <cstddef>
   7 #include <cstdint>
   8 #include <string_view>
   9 #include <utility>
  10
  11 #include "AL/al.h"
  12 #include "AL/alc.h"
  13
  14 #include "alc/inprogext.h"
  15 #include "almalloc.h"
  16 #include "alnumeric.h"
  17 #include "core/buffer_storage.h"
  18 #include "vector.h"
  19
  20 #ifdef ALSOFT_EAX
  21 enum class EaxStorage : uint8_t {
  22     Automatic,
  23     Accessible,
  24     Hardware
  25 };
  26 #endif // ALSOFT_EAX
  27
  28
  29 struct ALbuffer : public BufferStorage {
  30     ALbitfieldSOFT Access{0u};
  31
  32     al::vector<std::byte,16> mDataStorage;
  33
  34     ALuint OriginalSize{0};
  35
  36     ALuint UnpackAlign{0};
  37     ALuint PackAlign{0};
  38     ALuint UnpackAmbiOrder{1};
  39
  40     ALbitfieldSOFT MappedAccess{0u};
  41     ALsizei MappedOffset{0};
  42     ALsizei MappedSize{0};
  43
  44     ALuint mLoopStart{0u};
  45     ALuint mLoopEnd{0u};
  46
  47     /* Number of times buffer was attached to a source (deletion can only occur when 0) */
  48     std::atomic<ALuint> ref{0u};
  49
  50     /* Self ID */
  51     ALuint id{0};
  52
  53     static void SetName(ALCcontext *context, ALuint id, std::string_view name);
  54
  55     DISABLE_ALLOC
  56
  57 #ifdef ALSOFT_EAX
  58     EaxStorage eax_x_ram_mode{EaxStorage::Automatic};
  59     bool eax_x_ram_is_hardware{};
  60 #endif // ALSOFT_EAX
  61 };
  62
  63 struct BufferSubList {
  64     uint64_t FreeMask{~0_u64};
  65     gsl::owner<std::array<ALbuffer,64>*> Buffers{nullptr};
  66
  67     BufferSubList() noexcept = default;
  68     BufferSubList(const BufferSubList&) = delete;
  69     BufferSubList(BufferSubList&& rhs) noexcept : FreeMask{rhs.FreeMask}, Buffers{rhs.Buffers}
  70     { rhs.FreeMask = ~0_u64; rhs.Buffers = nullptr; }
  71     ~BufferSubList();
  72
  73     BufferSubList& operator=(const BufferSubList&) = delete;
  74     BufferSubList& operator=(BufferSubList&& rhs) noexcept
  75     { std::swap(FreeMask, rhs.FreeMask); std::swap(Buffers, rhs.Buffers); return *this; }
  76 };
  77
  78 #endif