--- linuxsampler/trunk/src/engines/gig/Voice.h 2004/09/15 13:59:08 242 +++ linuxsampler/trunk/src/engines/gig/Voice.h 2004/10/16 17:38:03 287 @@ -31,7 +31,7 @@ #include "../../common/RTMath.h" #include "../../common/RingBuffer.h" -#include "../../common/RTELMemoryPool.h" +#include "../../common/Pool.h" #include "../../drivers/audio/AudioOutputDevice.h" #include "../../lib/fileloader/libgig/gig.h" #include "../common/BiquadFilter.h" @@ -92,29 +92,31 @@ int MIDIKey; ///< MIDI key number of the key that triggered the voice uint KeyGroup; DiskThread* pDiskThread; ///< Pointer to the disk thread, to be able to order a disk stream and later to delete the stream again + RTList::Iterator itChildVoice; ///< Points to the next layer voice (if any). This field is currently only used by the voice stealing algorithm. // Methods Voice(); ~Voice(); - void Kill(Event* pKillEvent); - void KillImmediately(); + void Kill(Pool::Iterator& itKillEvent); void Render(uint Samples); void Reset(); void SetOutput(AudioOutputDevice* pAudioOutputDevice); void SetEngine(Engine* pEngine); - int Trigger(Event* pNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer = 0, bool ReleaseTriggerVoice = false); - inline bool IsActive() { return Active; } + int Trigger(Pool::Iterator& itNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing); + inline bool IsActive() { return PlaybackState; } private: // Types enum playback_state_t { - playback_state_ram, - playback_state_disk, - playback_state_end + playback_state_end = 0, + playback_state_ram = 1, + playback_state_disk = 2 }; // Attributes gig::Engine* pEngine; ///< Pointer to the sampler engine, to be able to access the event lists. float Volume; ///< Volume level of the voice + float PanLeft; + float PanRight; float CrossfadeVolume; ///< Current attenuation level caused by a crossfade (only if a crossfade is defined of course) double Pos; ///< Current playback position in sample double PitchBase; ///< Basic pitch depth, stays the same for the whole life time of the voice @@ -122,7 +124,6 @@ ::gig::Sample* pSample; ///< Pointer to the sample to be played back ::gig::Region* pRegion; ///< Pointer to the articulation information of the respective keyboard region of this voice ::gig::DimensionRegion* pDimRgn; ///< Pointer to the articulation information of current dimension region of this voice - bool Active; ///< If this voice object is currently in usage playback_state_t PlaybackState; ///< When a sample will be triggered, it will be first played from RAM cache and after a couple of sample points it will switch to disk streaming and at the end of a disk stream we have to add null samples, so the interpolator can do it's work correctly bool DiskVoice; ///< If the sample is very short it completely fits into the RAM cache and doesn't need to be streamed from disk, in that case this flag is set to false Stream::reference_t DiskStreamRef; ///< Reference / link to the disk stream @@ -146,21 +147,44 @@ LFO* pLFO1; ///< Low Frequency Oscillator 1 (Amplification) LFO* pLFO2; ///< Low Frequency Oscillator 2 (Filter cutoff frequency) LFO* pLFO3; ///< Low Frequency Oscillator 3 (Pitch) - Event* pTriggerEvent; ///< First event on the key's list the voice should process (only needed for the first audio fragment in which voice was triggered, after that it will be set to NULL). - Event* pKillEvent; ///< Event which caused this voice to be killed + Pool::Iterator itTriggerEvent; ///< First event on the key's list the voice should process (only needed for the first audio fragment in which voice was triggered, after that it will be set to NULL). + public: // FIXME: just made public for debugging (sanity check in Engine::RenderAudio()), should be changed to private before the final release + Pool::Iterator itKillEvent; ///< Event which caused this voice to be killed + private: + // Static Methods static float CalculateFilterCutoffCoeff(); static int CalculateFilterUpdateMask(); // Methods + void KillImmediately(); void ProcessEvents(uint Samples); #if ENABLE_FILTER void CalculateBiquadParameters(uint Samples); #endif // ENABLE_FILTER - void Interpolate(uint Samples, sample_t* pSrc, uint Skip); + void InterpolateNoLoop(uint Samples, sample_t* pSrc, uint Skip); void InterpolateAndLoop(uint Samples, sample_t* pSrc, uint Skip); - inline void InterpolateOneStep_Stereo(sample_t* pSrc, int& i, float& effective_volume, float& pitch, biquad_param_t& bq_base, biquad_param_t& bq_main) { + + inline void InterpolateMono(sample_t* pSrc, int& i) { + InterpolateOneStep_Mono(pSrc, i, + pEngine->pSynthesisParameters[Event::destination_vca][i] * PanLeft, + pEngine->pSynthesisParameters[Event::destination_vca][i] * PanRight, + pEngine->pSynthesisParameters[Event::destination_vco][i], + pEngine->pBasicFilterParameters[i], + pEngine->pMainFilterParameters[i]); + } + + inline void InterpolateStereo(sample_t* pSrc, int& i) { + InterpolateOneStep_Stereo(pSrc, i, + pEngine->pSynthesisParameters[Event::destination_vca][i] * PanLeft, + pEngine->pSynthesisParameters[Event::destination_vca][i] * PanRight, + pEngine->pSynthesisParameters[Event::destination_vco][i], + pEngine->pBasicFilterParameters[i], + pEngine->pMainFilterParameters[i]); + } + + inline void InterpolateOneStep_Stereo(sample_t* pSrc, int& i, float volume_left, float volume_right, float& pitch, biquad_param_t& bq_base, biquad_param_t& bq_main) { int pos_int = RTMath::DoubleToInt(this->Pos); // integer position float pos_fract = this->Pos - pos_int; // fractional part of position pos_int <<= 1; @@ -168,14 +192,14 @@ #if USE_LINEAR_INTERPOLATION #if ENABLE_FILTER // left channel - pEngine->pOutputLeft[i] += this->FilterLeft.Apply(&bq_base, &bq_main, effective_volume * (pSrc[pos_int] + pos_fract * (pSrc[pos_int+2] - pSrc[pos_int]))); + pEngine->pOutputLeft[i] += this->FilterLeft.Apply(&bq_base, &bq_main, volume_left * (pSrc[pos_int] + pos_fract * (pSrc[pos_int+2] - pSrc[pos_int]))); // right channel - pEngine->pOutputRight[i++] += this->FilterRight.Apply(&bq_base, &bq_main, effective_volume * (pSrc[pos_int+1] + pos_fract * (pSrc[pos_int+3] - pSrc[pos_int+1]))); + pEngine->pOutputRight[i++] += this->FilterRight.Apply(&bq_base, &bq_main, volume_right * (pSrc[pos_int+1] + pos_fract * (pSrc[pos_int+3] - pSrc[pos_int+1]))); #else // no filter // left channel - pEngine->pOutputLeft[i] += effective_volume * (pSrc[pos_int] + pos_fract * (pSrc[pos_int+2] - pSrc[pos_int])); + pEngine->pOutputLeft[i] += volume_left * (pSrc[pos_int] + pos_fract * (pSrc[pos_int+2] - pSrc[pos_int])); // right channel - pEngine->pOutputRight[i++] += effective_volume * (pSrc[pos_int+1] + pos_fract * (pSrc[pos_int+3] - pSrc[pos_int+1])); + pEngine->pOutputRight[i++] += volume_right * (pSrc[pos_int+1] + pos_fract * (pSrc[pos_int+3] - pSrc[pos_int+1])); #endif // ENABLE_FILTER #else // polynomial interpolation // calculate left channel @@ -187,9 +211,9 @@ float b = 2.0f * x1 + xm1 - (5.0f * x0 + x2) * 0.5f; float c = (x1 - xm1) * 0.5f; #if ENABLE_FILTER - pEngine->pOutputLeft[i] += this->FilterLeft.Apply(&bq_base, &bq_main, effective_volume * ((((a * pos_fract) + b) * pos_fract + c) * pos_fract + x0)); + pEngine->pOutputLeft[i] += this->FilterLeft.Apply(&bq_base, &bq_main, volume_left * ((((a * pos_fract) + b) * pos_fract + c) * pos_fract + x0)); #else // no filter - pEngine->pOutputLeft[i] += effective_volume * ((((a * pos_fract) + b) * pos_fract + c) * pos_fract + x0); + pEngine->pOutputLeft[i] += volume_left * ((((a * pos_fract) + b) * pos_fract + c) * pos_fract + x0); #endif // ENABLE_FILTER //calculate right channel @@ -201,21 +225,21 @@ b = 2.0f * x1 + xm1 - (5.0f * x0 + x2) * 0.5f; c = (x1 - xm1) * 0.5f; #if ENABLE_FILTER - pEngine->pOutputRight[i++] += this->FilterRight.Apply(&bq_base, &bq_main, effective_volume * ((((a * pos_fract) + b) * pos_fract + c) * pos_fract + x0)); + pEngine->pOutputRight[i++] += this->FilterRight.Apply(&bq_base, &bq_main, volume_right * ((((a * pos_fract) + b) * pos_fract + c) * pos_fract + x0)); #else // no filter - pEngine->pOutputRight[i++] += effective_volume * ((((a * pos_fract) + b) * pos_fract + c) * pos_fract + x0); + pEngine->pOutputRight[i++] += volume_right * ((((a * pos_fract) + b) * pos_fract + c) * pos_fract + x0); #endif // ENABLE_FILTER #endif // USE_LINEAR_INTERPOLATION this->Pos += pitch; } - inline void InterpolateOneStep_Mono(sample_t* pSrc, int& i, float& effective_volume, float& pitch, biquad_param_t& bq_base, biquad_param_t& bq_main) { + inline void InterpolateOneStep_Mono(sample_t* pSrc, int& i, float volume_left, float volume_right, float& pitch, biquad_param_t& bq_base, biquad_param_t& bq_main) { int pos_int = RTMath::DoubleToInt(this->Pos); // integer position float pos_fract = this->Pos - pos_int; // fractional part of position #if USE_LINEAR_INTERPOLATION - float sample_point = effective_volume * (pSrc[pos_int] + pos_fract * (pSrc[pos_int+1] - pSrc[pos_int])); + float sample_point = pSrc[pos_int] + pos_fract * (pSrc[pos_int+1] - pSrc[pos_int]); #else // polynomial interpolation float xm1 = pSrc[pos_int]; float x0 = pSrc[pos_int+1]; @@ -224,15 +248,15 @@ float a = (3.0f * (x0 - x1) - xm1 + x2) * 0.5f; float b = 2.0f * x1 + xm1 - (5.0f * x0 + x2) * 0.5f; float c = (x1 - xm1) * 0.5f; - float sample_point = effective_volume * ((((a * pos_fract) + b) * pos_fract + c) * pos_fract + x0); + float sample_point = (((a * pos_fract) + b) * pos_fract + c) * pos_fract + x0; #endif // USE_LINEAR_INTERPOLATION #if ENABLE_FILTER sample_point = this->FilterLeft.Apply(&bq_base, &bq_main, sample_point); #endif // ENABLE_FILTER - pEngine->pOutputLeft[i] += sample_point; - pEngine->pOutputRight[i++] += sample_point; + pEngine->pOutputLeft[i] += sample_point * volume_left; + pEngine->pOutputRight[i++] += sample_point * volume_right; this->Pos += pitch; }