effect.cpp

来自「游戏音频程序设计-Beginning.Game.Audio.Programmin」· C++ 代码 · 共 200 行

// Effect.cpp: implementation of the CEffect class.
//
//////////////////////////////////////////////////////////////////////

#include "Effect.h"

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

namespace AudioEngine {

CEffect::CEffect()
{
  

}

CEffect::~CEffect()
{

}

void CChorusEffect::SetAllParameters(IDirectMusicAudioPath8 *audiopath)
{
  HRESULT hr;
  IDirectSoundFXChorus8* effect = NULL;
  
  // get the effect's interface
  hr = audiopath->GetObjectInPath(DMUS_PCHANNEL_ALL,
      DMUS_PATH_BUFFER_DMO, 0, GUID_All_Objects, 0, IID_IDirectSoundFXChorus8,
      (LPVOID*) &effect);
  ThrowIfFailed(hr, "CChorusEffect::SetAllParameters(): couldn't get effect interface.");

  // set the effect's params
  hr = effect->SetAllParameters(&m_Params);

  // release the effect's interface
  SAFE_RELEASE(effect);
}

void CCompressorEffect::SetAllParameters(IDirectMusicAudioPath8 *audiopath)
{
  HRESULT hr;
  IDirectSoundFXCompressor8* effect = NULL;
  
  // get the effect's interface
  hr = audiopath->GetObjectInPath(DMUS_PCHANNEL_ALL,
      DMUS_PATH_BUFFER_DMO, 0, GUID_All_Objects, 0, IID_IDirectSoundFXCompressor8,
      (LPVOID*) &effect);
  ThrowIfFailed(hr, "CCompressorEffect::SetAllParameters(): couldn't get effect interface.");

  // set the effect's params
  hr = effect->SetAllParameters(&m_Params);

  // release the effect's interface
  SAFE_RELEASE(effect);
}

void CDistortionEffect::SetAllParameters(IDirectMusicAudioPath8 *audiopath)
{
  HRESULT hr;
  IDirectSoundFXDistortion8* effect = NULL;
  
  // get the effect's interface
  hr = audiopath->GetObjectInPath(DMUS_PCHANNEL_ALL,
      DMUS_PATH_BUFFER_DMO, 0, GUID_All_Objects, 0, IID_IDirectSoundFXDistortion8,
      (LPVOID*) &effect);
  ThrowIfFailed(hr, "CDistortionEffect::SetAllParameters(): couldn't get effect interface.");

  // set the effect's params
  hr = effect->SetAllParameters(&m_Params);

  // release the effect's interface
  SAFE_RELEASE(effect);
}

void CEchoEffect::SetAllParameters(IDirectMusicAudioPath8 *audiopath)
{
  HRESULT hr;
  IDirectSoundFXEcho8* effect = NULL;
  
  // get the effect's interface
  hr = audiopath->GetObjectInPath(DMUS_PCHANNEL_ALL,
      DMUS_PATH_BUFFER_DMO, 0, GUID_All_Objects, 0, IID_IDirectSoundFXEcho8,
      (LPVOID*) &effect);
  ThrowIfFailed(hr, "CEchoEffect::SetAllParameters(): couldn't get effect interface.");

  // set the effect's params
  hr = effect->SetAllParameters(&m_Params);

  // release the effect's interface
  SAFE_RELEASE(effect);
}

void CFlangeEffect::SetAllParameters(IDirectMusicAudioPath8 *audiopath)
{
  HRESULT hr;
  IDirectSoundFXFlanger8* effect = NULL;
  
  // get the effect's interface
  hr = audiopath->GetObjectInPath(DMUS_PCHANNEL_ALL,
      DMUS_PATH_BUFFER_DMO, 0, GUID_All_Objects, 0, IID_IDirectSoundFXFlanger8,
      (LPVOID*) &effect);
  ThrowIfFailed(hr, "CFlangeEffect::SetAllParameters(): couldn't get effect interface.");

  // set the effect's params
  hr = effect->SetAllParameters(&m_Params);

  // release the effect's interface
  SAFE_RELEASE(effect);
}

void CGargleEffect::SetAllParameters(IDirectMusicAudioPath8 *audiopath)
{
  HRESULT hr;
  IDirectSoundFXGargle8* effect = NULL;
  
  // get the effect's interface
  hr = audiopath->GetObjectInPath(DMUS_PCHANNEL_ALL,
      DMUS_PATH_BUFFER_DMO, 0, GUID_All_Objects, 0, IID_IDirectSoundFXGargle8,
      (LPVOID*) &effect);
  ThrowIfFailed(hr, "CGargleEffect::SetAllParameters(): couldn't get effect interface.");

  // set the effect's params
  hr = effect->SetAllParameters(&m_Params);

  // release the effect's interface
  SAFE_RELEASE(effect);
}

void CParamEqEffect::SetAllParameters(IDirectMusicAudioPath8 *audiopath)
{
  HRESULT hr;
  IDirectSoundFXParamEq8* effect = NULL;
  
  // get the effect's interface
  hr = audiopath->GetObjectInPath(DMUS_PCHANNEL_ALL,
      DMUS_PATH_BUFFER_DMO, 0, GUID_All_Objects, 0, IID_IDirectSoundFXParamEq8,
      (LPVOID*) &effect);
  ThrowIfFailed(hr, "CParamEqEffect::SetAllParameters(): couldn't get effect interface.");

  // set the effect's params
  hr = effect->SetAllParameters(&m_Params);

  // release the effect's interface
  SAFE_RELEASE(effect);
}

void CWavesReverbEffect::SetAllParameters(IDirectMusicAudioPath8 *audiopath)
{
  HRESULT hr;
  IDirectSoundFXWavesReverb8* effect = NULL;
  
  // get the effect's interface
  hr = audiopath->GetObjectInPath(DMUS_PCHANNEL_ALL,
      DMUS_PATH_BUFFER_DMO, 0, GUID_All_Objects, 0, IID_IDirectSoundFXWavesReverb8,
      (LPVOID*) &effect);
  ThrowIfFailed(hr, "CWavesReverbEffect::SetAllParameters(): couldn't get effect interface.");

  // set the effect's params
  hr = effect->SetAllParameters(&m_Params);

  // release the effect's interface
  SAFE_RELEASE(effect);
}

void CI3DL2Effect::SetAllParameters(IDirectMusicAudioPath8 *audiopath)
{
  HRESULT hr;
  IDirectSoundFXI3DL2Reverb8* effect = NULL;
  
  // get the effect's interface
  hr = audiopath->GetObjectInPath(DMUS_PCHANNEL_ALL,
    DMUS_PATH_BUFFER_DMO, 0, GUID_All_Objects, 0, IID_IDirectSoundFXI3DL2Reverb8,
    (LPVOID*) &effect);
  ThrowIfFailed(hr, "CI3DL2Effect::SetAllParameters(): couldn't get effect interface.");

  // if they've set up a preset, apply that.
  if (m_Preset != -1) {
    hr = effect->SetPreset(m_Preset);
    ThrowIfFailed(hr, "CI3DL2Effect::SetPreset(): can't set environment preset.");
  }
  else {
    // set the effect's params
    hr = effect->SetAllParameters(&m_Params);
  }

  // release the effect's interface
  SAFE_RELEASE(effect);
}

void CI3DL2Effect::SetPreset(DWORD i3dl2preset)
{
  m_Preset = i3dl2preset;
  ZeroMemory(&m_Params, sizeof(DSFXI3DL2Reverb));
}


} // namespace