diff options
Diffstat (limited to 'Alc')
| -rw-r--r-- | Alc/bformatdec.cpp | 39 | ||||
| -rw-r--r-- | Alc/bformatdec.h | 8 |
2 files changed, 23 insertions, 24 deletions
diff --git a/Alc/bformatdec.cpp b/Alc/bformatdec.cpp index a80ded30..089d9465 100644 --- a/Alc/bformatdec.cpp +++ b/Alc/bformatdec.cpp @@ -21,9 +21,6 @@ namespace { using namespace std::placeholders; -#define HF_BAND 0 -#define LF_BAND 1 -static_assert(BFormatDec::sNumBands == 2, "Unexpected BFormatDec::sNumBands"); constexpr ALfloat Ambi3DDecoderHFScale[MAX_AMBI_ORDER+1] = { 1.00000000e+00f, 1.00000000e+00f @@ -85,11 +82,11 @@ void BFormatDec::reset(const AmbDecConf *conf, bool allow_2band, ALsizei inchans const ALfloat (&hfscales)[MAX_AMBI_ORDER+1] = GetDecoderHFScales(out_order); mUpsampler[0].Splitter.init(xover_norm); - mUpsampler[0].Gains[HF_BAND] = Ambi3DDecoderHFScale[0] / hfscales[0]; - mUpsampler[0].Gains[LF_BAND] = 1.0f; + mUpsampler[0].Gains[sHFBand] = Ambi3DDecoderHFScale[0] / hfscales[0]; + mUpsampler[0].Gains[sLFBand] = 1.0f; mUpsampler[1].Splitter.init(xover_norm); - mUpsampler[1].Gains[HF_BAND] = Ambi3DDecoderHFScale[1] / hfscales[1]; - mUpsampler[1].Gains[LF_BAND] = 1.0f; + mUpsampler[1].Gains[sHFBand] = Ambi3DDecoderHFScale[1] / hfscales[1]; + mUpsampler[1].Gains[sLFBand] = 1.0f; std::fill(std::begin(mUpsampler)+2, std::end(mUpsampler), mUpsampler[1]); } @@ -127,11 +124,11 @@ void BFormatDec::reset(const AmbDecConf *conf, bool allow_2band, ALsizei inchans { const ALsizei l{periphonic ? j : AmbiIndex::From2D[j]}; if(!(conf->ChanMask&(1<<l))) continue; - mtx[HF_BAND][j] = conf->HFMatrix[i][k] / coeff_scale[l] * + mtx[sHFBand][j] = conf->HFMatrix[i][k] / coeff_scale[l] * ((l>=9) ? conf->HFOrderGain[3] : (l>=4) ? conf->HFOrderGain[2] : (l>=1) ? conf->HFOrderGain[1] : conf->HFOrderGain[0]) * ratio; - mtx[LF_BAND][j] = conf->LFMatrix[i][k] / coeff_scale[l] * + mtx[sLFBand][j] = conf->LFMatrix[i][k] / coeff_scale[l] * ((l>=9) ? conf->LFOrderGain[3] : (l>=4) ? conf->LFOrderGain[2] : (l>=1) ? conf->LFOrderGain[1] : conf->LFOrderGain[0]) / ratio; @@ -165,11 +162,11 @@ void BFormatDec::reset(const ALsizei inchans, const ALfloat xover_norm, const AL const ALfloat (&hfscales)[MAX_AMBI_ORDER+1] = GetDecoderHFScales(out_order); mUpsampler[0].Splitter.init(xover_norm); - mUpsampler[0].Gains[HF_BAND] = Ambi3DDecoderHFScale[0] / hfscales[0]; - mUpsampler[0].Gains[LF_BAND] = 1.0f; + mUpsampler[0].Gains[sHFBand] = Ambi3DDecoderHFScale[0] / hfscales[0]; + mUpsampler[0].Gains[sLFBand] = 1.0f; mUpsampler[1].Splitter.init(xover_norm); - mUpsampler[1].Gains[HF_BAND] = Ambi3DDecoderHFScale[1] / hfscales[1]; - mUpsampler[1].Gains[LF_BAND] = 1.0f; + mUpsampler[1].Gains[sHFBand] = Ambi3DDecoderHFScale[1] / hfscales[1]; + mUpsampler[1].Gains[sLFBand] = 1.0f; std::fill(std::begin(mUpsampler)+2, std::end(mUpsampler), mUpsampler[1]); mUpAllpass[0].init(xover_norm); @@ -202,10 +199,10 @@ void BFormatDec::process(ALfloat (*OutBuffer)[BUFFERSIZE], const ALsizei OutChan if(UNLIKELY(!(mEnabled&(1<<chan)))) continue; - MixRowSamples(OutBuffer[chan], mMatrix.Dual[chan][HF_BAND], + MixRowSamples(OutBuffer[chan], mMatrix.Dual[chan][sHFBand], &reinterpret_cast<ALfloat(&)[BUFFERSIZE]>(mSamplesHF[0]), mNumChannels, 0, SamplesToDo); - MixRowSamples(OutBuffer[chan], mMatrix.Dual[chan][LF_BAND], + MixRowSamples(OutBuffer[chan], mMatrix.Dual[chan][sLFBand], &reinterpret_cast<ALfloat(&)[BUFFERSIZE]>(mSamplesLF[0]), mNumChannels, 0, SamplesToDo); } @@ -248,7 +245,7 @@ void BFormatDec::upSample(ALfloat (*OutBuffer)[BUFFERSIZE], const ALsizei OutCha */ mUpAllpass[i].process(OutBuffer[i], SamplesToDo); - mUpsampler[i].Splitter.process(mSamples[HF_BAND].data(), mSamples[LF_BAND].data(), + mUpsampler[i].Splitter.process(mSamples[sHFBand].data(), mSamples[sLFBand].data(), InSamples[i], SamplesToDo); MixRowSamples(OutBuffer[i], mUpsampler[i].Gains, &reinterpret_cast<ALfloat(&)[BUFFERSIZE]>(mSamples[0]), sNumBands, 0, SamplesToDo); @@ -279,11 +276,11 @@ void AmbiUpsampler::reset(const ALsizei out_order, const ALfloat xover_norm) const ALfloat (&hfscales)[MAX_AMBI_ORDER+1] = GetDecoderHFScales(out_order); mInput[0].Splitter.init(xover_norm); - mInput[0].Gains[HF_BAND] = Ambi3DDecoderHFScale[0] / hfscales[0]; - mInput[0].Gains[LF_BAND] = 1.0f; + mInput[0].Gains[sHFBand] = Ambi3DDecoderHFScale[0] / hfscales[0]; + mInput[0].Gains[sLFBand] = 1.0f; mInput[1].Splitter.init(xover_norm); - mInput[1].Gains[HF_BAND] = Ambi3DDecoderHFScale[1] / hfscales[1]; - mInput[1].Gains[LF_BAND] = 1.0f; + mInput[1].Gains[sHFBand] = Ambi3DDecoderHFScale[1] / hfscales[1]; + mInput[1].Gains[sLFBand] = 1.0f; std::fill(std::begin(mInput)+2, std::end(mInput), mInput[1]); mAllpass[0].init(xover_norm); @@ -298,7 +295,7 @@ void AmbiUpsampler::process(ALfloat (*OutBuffer)[BUFFERSIZE], const ALsizei OutC for(ALsizei i{0};i < InChannels;i++) { mAllpass[i].process(OutBuffer[i], SamplesToDo); - mInput[i].Splitter.process(mSamples[HF_BAND], mSamples[LF_BAND], InSamples[i], + mInput[i].Splitter.process(mSamples[sHFBand], mSamples[sLFBand], InSamples[i], SamplesToDo); MixRowSamples(OutBuffer[i], mInput[i].Gains, mSamples, sNumBands, 0, SamplesToDo); } diff --git a/Alc/bformatdec.h b/Alc/bformatdec.h index e0c31b56..f807808d 100644 --- a/Alc/bformatdec.h +++ b/Alc/bformatdec.h @@ -13,10 +13,10 @@ struct AmbDecConf; using ChannelDec = ALfloat[MAX_AMBI_COEFFS]; class BFormatDec { -public: + static constexpr size_t sHFBand{0}; + static constexpr size_t sLFBand{1}; static constexpr size_t sNumBands{2}; -private: ALuint mEnabled; /* Bitfield of enabled channels. */ union MatrixU { @@ -60,7 +60,9 @@ public: * with bformatdec. */ class AmbiUpsampler { - static constexpr ALsizei sNumBands{2}; + static constexpr size_t sHFBand{0}; + static constexpr size_t sLFBand{1}; + static constexpr size_t sNumBands{2}; alignas(16) ALfloat mSamples[sNumBands][BUFFERSIZE]; struct { |