al/buffer.h

   1 #ifndef AL_BUFFER_H
   2 #define AL_BUFFER_H
   3
   4 #include "config.h"
   5
   6 #include <array>
   7 #include <atomic>
   8 #include <cstddef>
   9 #include <cstdint>
  10 #include <string_view>
  11 #include <utility>
  12
  13 #include "AL/al.h"
  14 #include "AL/alc.h"
  15
  16 #include "alc/inprogext.h"
  17 #include "almalloc.h"
  18 #include "alnumeric.h"
  19 #include "core/buffer_storage.h"
  20 #include "vector.h"
  21
  22 #if ALSOFT_EAX
  23 enum class EaxStorage : uint8_t {
  24     Automatic,
  25     Accessible,
  26     Hardware
  27 };
  28 #endif // ALSOFT_EAX
  29
  30
  31 struct ALbuffer : public BufferStorage {
  32     ALbitfieldSOFT Access{0u};
  33
  34     al::vector<std::byte,16> mDataStorage;
  35
  36     ALuint OriginalSize{0};
  37
  38     ALuint UnpackAlign{0};
  39     ALuint PackAlign{0};
  40     ALuint UnpackAmbiOrder{1};
  41
  42     ALbitfieldSOFT MappedAccess{0u};
  43     ALsizei MappedOffset{0};
  44     ALsizei MappedSize{0};
  45
  46     ALuint mLoopStart{0u};
  47     ALuint mLoopEnd{0u};
  48
  49     /* Number of times buffer was attached to a source (deletion can only occur when 0) */
  50     std::atomic<ALuint> ref{0u};
  51
  52     /* Self ID */
  53     ALuint id{0};
  54
  55     static void SetName(ALCcontext *context, ALuint id, std::string_view name);
  56
  57     DISABLE_ALLOC
  58
  59 #if ALSOFT_EAX
  60     EaxStorage eax_x_ram_mode{EaxStorage::Automatic};
  61     bool eax_x_ram_is_hardware{};
  62 #endif // ALSOFT_EAX
  63 };
  64
  65 struct BufferSubList {
  66     uint64_t FreeMask{~0_u64};
  67     gsl::owner<std::array<ALbuffer,64>*> Buffers{nullptr};
  68
  69     BufferSubList() noexcept = default;
  70     BufferSubList(const BufferSubList&) = delete;
  71     BufferSubList(BufferSubList&& rhs) noexcept : FreeMask{rhs.FreeMask}, Buffers{rhs.Buffers}
  72     { rhs.FreeMask = ~0_u64; rhs.Buffers = nullptr; }
  73     ~BufferSubList();
  74
  75     BufferSubList& operator=(const BufferSubList&) = delete;
  76     BufferSubList& operator=(BufferSubList&& rhs) noexcept
  77     { std::swap(FreeMask, rhs.FreeMask); std::swap(Buffers, rhs.Buffers); return *this; }
  78 };
  79
  80 #endif