mirror of
https://github.com/ncblakely/GiantsTools
synced 2024-11-24 15:15:37 +01:00
384 lines
11 KiB
C
384 lines
11 KiB
C
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//--------------------------------------------------------------------------------------
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// File: SoundCommon.h
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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//
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// http://go.microsoft.com/fwlink/?LinkId=248929
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// http://go.microsoft.com/fwlink/?LinkID=615561
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//--------------------------------------------------------------------------------------
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#pragma once
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#include "Audio.h"
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#include "PlatformHelpers.h"
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#ifdef USING_XAUDIO2_9
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#define DIRECTX_ENABLE_XWMA
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#endif
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#if (defined(_XBOX_ONE) && defined(_TITLE)) || defined(_GAMING_XBOX)
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#define DIRECTX_ENABLE_XMA2
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#endif
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#if defined(DIRECTX_ENABLE_XWMA) || defined(DIRECTX_ENABLE_XMA2)
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#define DIRECTX_ENABLE_SEEK_TABLES
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#endif
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namespace DirectX
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{
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// Helper for getting a format tag from a WAVEFORMATEX
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inline uint32_t GetFormatTag(const WAVEFORMATEX* wfx) noexcept
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{
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if (wfx->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
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{
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if (wfx->cbSize < (sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX)))
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return 0;
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static const GUID s_wfexBase = { 0x00000000, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71 } };
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auto wfex = reinterpret_cast<const WAVEFORMATEXTENSIBLE*>(wfx);
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if (memcmp(reinterpret_cast<const BYTE*>(&wfex->SubFormat) + sizeof(DWORD),
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reinterpret_cast<const BYTE*>(&s_wfexBase) + sizeof(DWORD), sizeof(GUID) - sizeof(DWORD)) != 0)
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{
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return 0;
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}
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return wfex->SubFormat.Data1;
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}
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else
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{
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return wfx->wFormatTag;
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}
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}
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// Helper for validating wave format structure
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bool IsValid(_In_ const WAVEFORMATEX* wfx) noexcept;
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// Helper for getting a default channel mask from channels
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uint32_t GetDefaultChannelMask(int channels) noexcept;
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// Helpers for creating various wave format structures
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void CreateIntegerPCM(_Out_ WAVEFORMATEX* wfx, int sampleRate, int channels, int sampleBits) noexcept;
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void CreateFloatPCM(_Out_ WAVEFORMATEX* wfx, int sampleRate, int channels) noexcept;
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void CreateADPCM(_Out_writes_bytes_(wfxSize) WAVEFORMATEX* wfx, size_t wfxSize, int sampleRate, int channels, int samplesPerBlock) noexcept(false);
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#ifdef DIRECTX_ENABLE_XWMA
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void CreateXWMA(_Out_ WAVEFORMATEX* wfx, int sampleRate, int channels, int blockAlign, int avgBytes, bool wma3) noexcept;
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#endif
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#ifdef DIRECTX_ENABLE_XMA2
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void CreateXMA2(_Out_writes_bytes_(wfxSize) WAVEFORMATEX* wfx, size_t wfxSize, int sampleRate, int channels, int bytesPerBlock, int blockCount, int samplesEncoded) noexcept(false);
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#endif
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// Helper for computing pan volume matrix
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bool ComputePan(float pan, unsigned int channels, _Out_writes_(16) float* matrix) noexcept;
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// Helper class for implementing SoundEffectInstance
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class SoundEffectInstanceBase
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{
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public:
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SoundEffectInstanceBase() noexcept :
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voice(nullptr),
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state(STOPPED),
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engine(nullptr),
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mVolume(1.f),
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mPitch(0.f),
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mFreqRatio(1.f),
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mPan(0.f),
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mFlags(SoundEffectInstance_Default),
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mDirectVoice(nullptr),
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mReverbVoice(nullptr),
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mDSPSettings{}
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{
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}
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SoundEffectInstanceBase(SoundEffectInstanceBase&&) = default;
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SoundEffectInstanceBase& operator= (SoundEffectInstanceBase&&) = default;
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SoundEffectInstanceBase(SoundEffectInstanceBase const&) = delete;
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SoundEffectInstanceBase& operator= (SoundEffectInstanceBase const&) = delete;
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~SoundEffectInstanceBase()
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{
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assert(voice == nullptr);
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}
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void Initialize(_In_ AudioEngine* eng, _In_ const WAVEFORMATEX* wfx, SOUND_EFFECT_INSTANCE_FLAGS flags) noexcept
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{
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assert(eng != nullptr);
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engine = eng;
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mDirectVoice = eng->GetMasterVoice();
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mReverbVoice = eng->GetReverbVoice();
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if (eng->GetChannelMask() & SPEAKER_LOW_FREQUENCY)
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mFlags = flags | SoundEffectInstance_UseRedirectLFE;
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else
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mFlags = flags & ~SoundEffectInstance_UseRedirectLFE;
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memset(&mDSPSettings, 0, sizeof(X3DAUDIO_DSP_SETTINGS));
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assert(wfx != nullptr);
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mDSPSettings.SrcChannelCount = wfx->nChannels;
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mDSPSettings.DstChannelCount = eng->GetOutputChannels();
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}
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void AllocateVoice(_In_ const WAVEFORMATEX* wfx)
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{
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if (voice)
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return;
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assert(engine != nullptr);
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engine->AllocateVoice(wfx, mFlags, false, &voice);
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}
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void DestroyVoice() noexcept
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{
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if (voice)
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{
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assert(engine != nullptr);
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engine->DestroyVoice(voice);
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voice = nullptr;
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}
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}
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bool Play() // Returns true if STOPPED -> PLAYING
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{
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if (voice)
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{
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if (state == PAUSED)
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{
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HRESULT hr = voice->Start(0);
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ThrowIfFailed(hr);
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state = PLAYING;
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}
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else if (state != PLAYING)
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{
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if (mVolume != 1.f)
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{
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HRESULT hr = voice->SetVolume(mVolume);
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ThrowIfFailed(hr);
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}
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if (mPitch != 0.f)
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{
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mFreqRatio = XAudio2SemitonesToFrequencyRatio(mPitch * 12.f);
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HRESULT hr = voice->SetFrequencyRatio(mFreqRatio);
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ThrowIfFailed(hr);
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}
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if (mPan != 0.f)
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{
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SetPan(mPan);
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}
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HRESULT hr = voice->Start(0);
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ThrowIfFailed(hr);
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state = PLAYING;
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return true;
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}
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}
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return false;
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}
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void Stop(bool immediate, bool& looped) noexcept
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{
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if (!voice)
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{
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state = STOPPED;
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return;
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}
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if (immediate)
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{
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state = STOPPED;
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(void)voice->Stop(0);
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(void)voice->FlushSourceBuffers();
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}
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else if (looped)
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{
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looped = false;
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(void)voice->ExitLoop();
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}
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else
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{
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(void)voice->Stop(XAUDIO2_PLAY_TAILS);
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}
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}
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void Pause() noexcept
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{
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if (voice && state == PLAYING)
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{
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state = PAUSED;
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(void)voice->Stop(0);
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}
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}
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void Resume()
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{
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if (voice && state == PAUSED)
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{
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HRESULT hr = voice->Start(0);
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ThrowIfFailed(hr);
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state = PLAYING;
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}
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}
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void SetVolume(float volume)
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{
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assert(volume >= -XAUDIO2_MAX_VOLUME_LEVEL && volume <= XAUDIO2_MAX_VOLUME_LEVEL);
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mVolume = volume;
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if (voice)
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{
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HRESULT hr = voice->SetVolume(volume);
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ThrowIfFailed(hr);
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}
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}
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void SetPitch(float pitch)
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{
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assert(pitch >= -1.f && pitch <= 1.f);
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if ((mFlags & SoundEffectInstance_NoSetPitch) && pitch != 0.f)
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{
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DebugTrace("ERROR: Sound effect instance was created with the NoSetPitch flag\n");
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throw std::exception("SetPitch");
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}
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mPitch = pitch;
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if (voice)
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{
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mFreqRatio = XAudio2SemitonesToFrequencyRatio(mPitch * 12.f);
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HRESULT hr = voice->SetFrequencyRatio(mFreqRatio);
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ThrowIfFailed(hr);
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}
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}
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void SetPan(float pan);
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void Apply3D(const AudioListener& listener, const AudioEmitter& emitter, bool rhcoords);
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SoundState GetState(bool autostop) noexcept
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{
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if (autostop && voice && (state == PLAYING))
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{
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XAUDIO2_VOICE_STATE xstate;
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voice->GetState(&xstate, XAUDIO2_VOICE_NOSAMPLESPLAYED);
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if (!xstate.BuffersQueued)
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{
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// Automatic stop if the buffer has finished playing
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(void)voice->Stop();
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state = STOPPED;
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}
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}
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return state;
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}
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int GetPendingBufferCount() const noexcept
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{
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if (!voice)
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return 0;
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XAUDIO2_VOICE_STATE xstate;
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voice->GetState(&xstate, XAUDIO2_VOICE_NOSAMPLESPLAYED);
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return static_cast<int>(xstate.BuffersQueued);
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}
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void OnCriticalError() noexcept
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{
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if (voice)
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{
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voice->DestroyVoice();
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voice = nullptr;
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}
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state = STOPPED;
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mDirectVoice = nullptr;
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mReverbVoice = nullptr;
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}
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void OnReset() noexcept
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{
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assert(engine != nullptr);
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mDirectVoice = engine->GetMasterVoice();
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mReverbVoice = engine->GetReverbVoice();
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if (engine->GetChannelMask() & SPEAKER_LOW_FREQUENCY)
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mFlags = mFlags | SoundEffectInstance_UseRedirectLFE;
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else
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mFlags = mFlags & ~SoundEffectInstance_UseRedirectLFE;
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mDSPSettings.DstChannelCount = engine->GetOutputChannels();
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}
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void OnDestroy() noexcept
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{
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if (voice)
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{
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(void)voice->Stop(0);
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(void)voice->FlushSourceBuffers();
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voice->DestroyVoice();
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voice = nullptr;
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}
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state = STOPPED;
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engine = nullptr;
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mDirectVoice = nullptr;
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mReverbVoice = nullptr;
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}
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void OnTrim()
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{
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if (voice && (state == STOPPED))
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{
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engine->DestroyVoice(voice);
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voice = nullptr;
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}
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}
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void GatherStatistics(AudioStatistics& stats) const noexcept
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{
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++stats.allocatedInstances;
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if (voice)
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{
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++stats.allocatedVoices;
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if (mFlags & SoundEffectInstance_Use3D)
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++stats.allocatedVoices3d;
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if (state == PLAYING)
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++stats.playingInstances;
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}
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}
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IXAudio2SourceVoice* voice;
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SoundState state;
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AudioEngine* engine;
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private:
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float mVolume;
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float mPitch;
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float mFreqRatio;
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float mPan;
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SOUND_EFFECT_INSTANCE_FLAGS mFlags;
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IXAudio2Voice* mDirectVoice;
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IXAudio2Voice* mReverbVoice;
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X3DAUDIO_DSP_SETTINGS mDSPSettings;
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};
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struct WaveBankSeekData
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{
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uint32_t seekCount;
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const uint32_t* seekTable;
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uint32_t tag;
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};
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}
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