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471 lines
12 KiB
471 lines
12 KiB
#ifndef ALC_CONTEXT_H
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#define ALC_CONTEXT_H
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#include <atomic>
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#include <memory>
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#include <mutex>
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#include <stdint.h>
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#include <utility>
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#include "AL/al.h"
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#include "AL/alc.h"
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#include "AL/alext.h"
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#include "al/listener.h"
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#include "almalloc.h"
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#include "alnumeric.h"
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#include "atomic.h"
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#include "core/context.h"
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#include "intrusive_ptr.h"
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#include "vector.h"
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#ifdef ALSOFT_EAX
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#include "al/eax/call.h"
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#include "al/eax/fx_slot_index.h"
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#include "al/eax/fx_slots.h"
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#include "al/eax/utils.h"
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using ContextDirtyFlagsValue = std::uint_least8_t;
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struct ContextDirtyFlags
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{
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using EaxIsBitFieldStruct = bool;
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ContextDirtyFlagsValue guidPrimaryFXSlotID : 1;
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ContextDirtyFlagsValue flDistanceFactor : 1;
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ContextDirtyFlagsValue flAirAbsorptionHF : 1;
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ContextDirtyFlagsValue flHFReference : 1;
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ContextDirtyFlagsValue flMacroFXFactor : 1;
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}; // ContextDirtyFlags
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struct EaxAlIsExtensionPresentResult
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{
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ALboolean is_present;
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bool is_return;
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}; // EaxAlIsExtensionPresentResult
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#endif // ALSOFT_EAX
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struct ALeffect;
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struct ALeffectslot;
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struct ALsource;
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using uint = unsigned int;
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struct SourceSubList {
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uint64_t FreeMask{~0_u64};
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ALsource *Sources{nullptr}; /* 64 */
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SourceSubList() noexcept = default;
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SourceSubList(const SourceSubList&) = delete;
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SourceSubList(SourceSubList&& rhs) noexcept : FreeMask{rhs.FreeMask}, Sources{rhs.Sources}
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{ rhs.FreeMask = ~0_u64; rhs.Sources = nullptr; }
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~SourceSubList();
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SourceSubList& operator=(const SourceSubList&) = delete;
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SourceSubList& operator=(SourceSubList&& rhs) noexcept
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{ std::swap(FreeMask, rhs.FreeMask); std::swap(Sources, rhs.Sources); return *this; }
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};
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struct EffectSlotSubList {
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uint64_t FreeMask{~0_u64};
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ALeffectslot *EffectSlots{nullptr}; /* 64 */
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EffectSlotSubList() noexcept = default;
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EffectSlotSubList(const EffectSlotSubList&) = delete;
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EffectSlotSubList(EffectSlotSubList&& rhs) noexcept
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: FreeMask{rhs.FreeMask}, EffectSlots{rhs.EffectSlots}
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{ rhs.FreeMask = ~0_u64; rhs.EffectSlots = nullptr; }
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~EffectSlotSubList();
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EffectSlotSubList& operator=(const EffectSlotSubList&) = delete;
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EffectSlotSubList& operator=(EffectSlotSubList&& rhs) noexcept
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{ std::swap(FreeMask, rhs.FreeMask); std::swap(EffectSlots, rhs.EffectSlots); return *this; }
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};
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struct ALCcontext : public al::intrusive_ref<ALCcontext>, ContextBase {
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const al::intrusive_ptr<ALCdevice> mALDevice;
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/* Wet buffers used by effect slots. */
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al::vector<WetBufferPtr> mWetBuffers;
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bool mPropsDirty{true};
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bool mDeferUpdates{false};
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std::mutex mPropLock;
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std::atomic<ALenum> mLastError{AL_NO_ERROR};
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DistanceModel mDistanceModel{DistanceModel::Default};
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bool mSourceDistanceModel{false};
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float mDopplerFactor{1.0f};
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float mDopplerVelocity{1.0f};
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float mSpeedOfSound{SpeedOfSoundMetersPerSec};
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float mAirAbsorptionGainHF{AirAbsorbGainHF};
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std::mutex mEventCbLock;
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ALEVENTPROCSOFT mEventCb{};
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void *mEventParam{nullptr};
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ALlistener mListener{};
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al::vector<SourceSubList> mSourceList;
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ALuint mNumSources{0};
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std::mutex mSourceLock;
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al::vector<EffectSlotSubList> mEffectSlotList;
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ALuint mNumEffectSlots{0u};
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std::mutex mEffectSlotLock;
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/* Default effect slot */
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std::unique_ptr<ALeffectslot> mDefaultSlot;
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const char *mExtensionList{nullptr};
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ALCcontext(al::intrusive_ptr<ALCdevice> device);
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ALCcontext(const ALCcontext&) = delete;
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ALCcontext& operator=(const ALCcontext&) = delete;
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~ALCcontext();
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void init();
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/**
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* Removes the context from its device and removes it from being current on
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* the running thread or globally. Returns true if other contexts still
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* exist on the device.
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*/
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bool deinit();
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/**
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* Defers/suspends updates for the given context's listener and sources.
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* This does *NOT* stop mixing, but rather prevents certain property
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* changes from taking effect. mPropLock must be held when called.
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*/
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void deferUpdates() noexcept { mDeferUpdates = true; }
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/**
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* Resumes update processing after being deferred. mPropLock must be held
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* when called.
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*/
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void processUpdates()
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{
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if(std::exchange(mDeferUpdates, false))
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applyAllUpdates();
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}
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/**
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* Applies all pending updates for the context, listener, effect slots, and
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* sources.
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*/
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void applyAllUpdates();
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#ifdef __USE_MINGW_ANSI_STDIO
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[[gnu::format(gnu_printf, 3, 4)]]
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#else
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[[gnu::format(printf, 3, 4)]]
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#endif
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void setError(ALenum errorCode, const char *msg, ...);
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/* Process-wide current context */
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static std::atomic<ALCcontext*> sGlobalContext;
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private:
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/* Thread-local current context. */
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static thread_local ALCcontext *sLocalContext;
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/* Thread-local context handling. This handles attempting to release the
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* context which may have been left current when the thread is destroyed.
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*/
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class ThreadCtx {
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public:
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~ThreadCtx();
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void set(ALCcontext *ctx) const noexcept { sLocalContext = ctx; }
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};
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static thread_local ThreadCtx sThreadContext;
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public:
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/* HACK: MinGW generates bad code when accessing an extern thread_local
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* object. Add a wrapper function for it that only accesses it where it's
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* defined.
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*/
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#ifdef __MINGW32__
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static ALCcontext *getThreadContext() noexcept;
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static void setThreadContext(ALCcontext *context) noexcept;
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#else
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static ALCcontext *getThreadContext() noexcept { return sLocalContext; }
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static void setThreadContext(ALCcontext *context) noexcept { sThreadContext.set(context); }
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#endif
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/* Default effect that applies to sources that don't have an effect on send 0. */
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static ALeffect sDefaultEffect;
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DEF_NEWDEL(ALCcontext)
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#ifdef ALSOFT_EAX
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public:
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bool has_eax() const noexcept { return eax_is_initialized_; }
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bool eax_is_capable() const noexcept;
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void eax_uninitialize() noexcept;
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int eax_get_version() const noexcept { return eax_version_; }
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ALenum eax_eax_set(
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const GUID* property_set_id,
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ALuint property_id,
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ALuint property_source_id,
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ALvoid* property_value,
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ALuint property_value_size);
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ALenum eax_eax_get(
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const GUID* property_set_id,
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ALuint property_id,
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ALuint property_source_id,
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ALvoid* property_value,
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ALuint property_value_size);
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void eax_update_filters();
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void eax_commit_and_update_sources();
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void eax_set_last_error() noexcept;
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EaxFxSlotIndex eax_get_primary_fx_slot_index() const noexcept
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{ return eax_primary_fx_slot_index_; }
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const ALeffectslot& eax_get_fx_slot(EaxFxSlotIndexValue fx_slot_index) const
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{ return eax_fx_slots_.get(fx_slot_index); }
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ALeffectslot& eax_get_fx_slot(EaxFxSlotIndexValue fx_slot_index)
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{ return eax_fx_slots_.get(fx_slot_index); }
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void eax_commit_fx_slots()
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{ eax_fx_slots_.commit(); }
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private:
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struct Eax
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{
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EAX50CONTEXTPROPERTIES context{};
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}; // Eax
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bool eax_is_initialized_{};
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bool eax_is_tried_{};
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bool eax_are_legacy_fx_slots_unlocked_{};
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long eax_last_error_{};
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unsigned long eax_speaker_config_{};
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EaxFxSlotIndex eax_primary_fx_slot_index_{};
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EaxFxSlots eax_fx_slots_{};
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int eax_version_{};
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Eax eax_{};
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Eax eax_d_{};
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EAXSESSIONPROPERTIES eax_session_{};
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ContextDirtyFlags eax_context_dirty_flags_{};
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std::string eax_extension_list_{};
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[[noreturn]]
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static void eax_fail(
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const char* message);
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void eax_initialize_extensions();
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void eax_initialize(const EaxCall& call);
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bool eax_has_no_default_effect_slot() const noexcept;
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void eax_ensure_no_default_effect_slot() const;
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bool eax_has_enough_aux_sends() const noexcept;
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void eax_ensure_enough_aux_sends() const;
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void eax_ensure_compatibility();
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unsigned long eax_detect_speaker_configuration() const;
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void eax_update_speaker_configuration();
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void eax_set_last_error_defaults() noexcept;
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void eax_set_session_defaults() noexcept;
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void eax_set_context_defaults() noexcept;
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void eax_set_defaults() noexcept;
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void eax_initialize_sources();
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void eax_unlock_legacy_fx_slots(const EaxCall& call) noexcept;
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void eax_dispatch_fx_slot(const EaxCall& call);
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void eax_dispatch_source(const EaxCall& call);
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void eax_get_primary_fx_slot_id(const EaxCall& call);
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void eax_get_distance_factor(const EaxCall& call);
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void eax_get_air_absorption_hf(const EaxCall& call);
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void eax_get_hf_reference(const EaxCall& call);
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void eax_get_last_error(const EaxCall& call);
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void eax_get_speaker_config(const EaxCall& call);
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void eax_get_session(const EaxCall& call);
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void eax_get_macro_fx_factor(const EaxCall& call);
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void eax_get_context_all(const EaxCall& call);
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void eax_get(const EaxCall& call);
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void eax_set_primary_fx_slot_id();
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void eax_set_distance_factor();
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void eax_set_air_absorbtion_hf();
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void eax_set_hf_reference();
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void eax_set_macro_fx_factor();
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void eax_set_context();
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void eax_initialize_fx_slots(const EaxCall& call);
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void eax_update_sources();
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void eax_validate_primary_fx_slot_id(
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const GUID& primary_fx_slot_id);
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void eax_validate_distance_factor(
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float distance_factor);
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void eax_validate_air_absorption_hf(
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float air_absorption_hf);
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void eax_validate_hf_reference(
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float hf_reference);
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void eax_validate_speaker_config(
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unsigned long speaker_config);
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void eax_validate_session_eax_version(
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unsigned long eax_version);
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void eax_validate_session_max_active_sends(
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unsigned long max_active_sends);
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void eax_validate_session(
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const EAXSESSIONPROPERTIES& eax_session);
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void eax_validate_macro_fx_factor(
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float macro_fx_factor);
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void eax_validate_context_all(
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const EAX40CONTEXTPROPERTIES& context_all);
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void eax_validate_context_all(
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const EAX50CONTEXTPROPERTIES& context_all);
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void eax_defer_primary_fx_slot_id(
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const GUID& primary_fx_slot_id);
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void eax_defer_distance_factor(
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float distance_factor);
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void eax_defer_air_absorption_hf(
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float air_absorption_hf);
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void eax_defer_hf_reference(
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float hf_reference);
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void eax_defer_macro_fx_factor(
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float macro_fx_factor);
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void eax_defer_context_all(
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const EAX40CONTEXTPROPERTIES& context_all);
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void eax_defer_context_all(
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const EAX50CONTEXTPROPERTIES& context_all);
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void eax_defer_context_all(const EaxCall& call);
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void eax_defer_primary_fx_slot_id(const EaxCall& call);
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void eax_defer_distance_factor(const EaxCall& call);
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void eax_defer_air_absorption_hf(const EaxCall& call);
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void eax_defer_hf_reference(const EaxCall& call);
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void eax_set_session(const EaxCall& call);
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void eax_defer_macro_fx_factor(const EaxCall& call);
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void eax_set(const EaxCall& call);
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void eax_apply_deferred();
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#endif // ALSOFT_EAX
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};
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#define SETERR_RETURN(ctx, err, retval, ...) do { \
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(ctx)->setError((err), __VA_ARGS__); \
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return retval; \
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} while(0)
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using ContextRef = al::intrusive_ptr<ALCcontext>;
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ContextRef GetContextRef(void);
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void UpdateContextProps(ALCcontext *context);
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extern bool TrapALError;
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#ifdef ALSOFT_EAX
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ALenum AL_APIENTRY EAXSet(
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const GUID* property_set_id,
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ALuint property_id,
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ALuint property_source_id,
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ALvoid* property_value,
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ALuint property_value_size) noexcept;
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ALenum AL_APIENTRY EAXGet(
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const GUID* property_set_id,
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ALuint property_id,
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ALuint property_source_id,
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ALvoid* property_value,
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ALuint property_value_size) noexcept;
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#endif // ALSOFT_EAX
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#endif /* ALC_CONTEXT_H */
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