moflib-1.0/moflib/moflib/mof/sound/SoundBuffer.cpp

   1 #include "SoundBuffer.hpp"
   2 #include "SoundFile.hpp"
   3 #include <mof/ConsoleIO.hpp>
   4
   5 mof::SoundBuffer::SoundBuffer
   6 (
   7         std::shared_ptr<mof::sound::DirectSoundDevice> pDevice,
   8         LPDIRECTSOUNDBUFFER8 pBuffer,
   9         SoundFile* pResouce
  10 )
  11         : m_pBuffer(pBuffer), m_pResource(pResouce), pDevice_(pDevice)
  12 {
  13         m_pBuffer->AddRef();
  14         pBuffer->GetFrequency(&default_frequency_);
  15 }
  16
  17 mof::SoundBuffer::~SoundBuffer(void){
  18                 m_pBuffer->Release();
  19                 delete m_pResource;
  20 }
  21
  22 //{{{ update
  23 void mof::SoundBuffer::update()
  24 {
  25         volume_stream_.update();
  26         frequency_stream_.update();
  27
  28         mof::real volume = volume_stream_.value();
  29         if (volume > 1) volume = 1;
  30         else if (volume < 0) volume = 0;
  31         int converted_volume = (1.0f - volume) * DSBVOLUME_MIN;
  32         converted_volume = converted_volume < DSBVOLUME_MIN
  33                 ? DSBVOLUME_MIN
  34                 : converted_volume > DSBVOLUME_MAX
  35                         ? DSBVOLUME_MAX
  36                         : converted_volume;
  37         LONG prev_volume;
  38         getSoundBuffer()->GetVolume(&prev_volume);
  39         if (converted_volume != prev_volume) {
  40                 getSoundBuffer()->SetVolume(converted_volume);// 必要ない場合は変更を行わない
  41         }
  42
  43         mof::real frequency = frequency_stream_.value();
  44         int converted_frequency = default_frequency_ * frequency;
  45         converted_frequency = converted_frequency < DSBFREQUENCY_MIN
  46                         ? DSBFREQUENCY_MIN
  47                         : converted_frequency > DSBFREQUENCY_MAX
  48                                 ? DSBFREQUENCY_MAX
  49                                 : converted_frequency;
  50         DWORD prev_frequency;
  51         getSoundBuffer()->GetFrequency(&prev_frequency);
  52         if (converted_frequency != prev_frequency) {
  53                 getSoundBuffer()->SetFrequency(converted_frequency);// 必要ない場合は変更を行わない
  54         }
  55
  56 }
  57 //}}}