diff options
Diffstat (limited to 'alc/effects')
| -rw-r--r-- | alc/effects/reverb.cpp | 30 |
1 files changed, 11 insertions, 19 deletions
diff --git a/alc/effects/reverb.cpp b/alc/effects/reverb.cpp index 423aedd8..e69da59d 100644 --- a/alc/effects/reverb.cpp +++ b/alc/effects/reverb.cpp @@ -224,20 +224,13 @@ struct DelayLineI { * of 2 to allow the use of bit-masking instead of a modulus for wrapping. */ ALsizei Mask{0}; - ALfloat (*Line)[NUM_LINES]{nullptr}; + std::array<float,NUM_LINES> *Line{nullptr}; /* Given the allocated sample buffer, this function updates each delay line * offset. */ - void realizeLineOffset(ALfloat *sampleBuffer) - { - union { - ALfloat *f; - ALfloat (*f4)[NUM_LINES]; - } u; - u.f = &sampleBuffer[reinterpret_cast<ptrdiff_t>(Line) * NUM_LINES]; - Line = u.f4; - } + void realizeLineOffset(std::array<float,NUM_LINES> *sampleBuffer) noexcept + { Line = &sampleBuffer[reinterpret_cast<ptrdiff_t>(Line)]; } /* Calculate the length of a delay line and store its mask and offset. */ ALuint calcLineLength(const ALfloat length, const ptrdiff_t offset, const ALfloat frequency, @@ -251,7 +244,7 @@ struct DelayLineI { /* All lines share a single sample buffer. */ Mask = samples - 1; - Line = reinterpret_cast<ALfloat(*)[NUM_LINES]>(offset); + Line = reinterpret_cast<std::array<float,NUM_LINES>*>(offset); /* Return the sample count for accumulation. */ return samples; @@ -350,7 +343,7 @@ struct ReverbState final : public EffectState { /* All delay lines are allocated as a single buffer to reduce memory * fragmentation and management code. */ - al::vector<ALfloat,16> mSampleBuffer; + al::vector<std::array<float,NUM_LINES>,16> mSampleBuffer; struct { /* Calculated parameters which indicate if cross-fading is needed after @@ -531,7 +524,6 @@ bool ReverbState::allocLines(const ALfloat frequency) length = LATE_LINE_LENGTHS.back() * multiplier; totalSamples += mLate.Delay.calcLineLength(length, totalSamples, frequency, 0); - totalSamples *= NUM_LINES; if(totalSamples != mSampleBuffer.size()) { mSampleBuffer.resize(totalSamples); @@ -539,7 +531,7 @@ bool ReverbState::allocLines(const ALfloat frequency) } /* Clear the sample buffer. */ - std::fill(mSampleBuffer.begin(), mSampleBuffer.end(), 0.0f); + std::fill(mSampleBuffer.begin(), mSampleBuffer.end(), std::array<float,NUM_LINES>{}); /* Update all delays to reflect the new sample buffer. */ mDelay.realizeLineOffset(mSampleBuffer.data()); @@ -1029,8 +1021,8 @@ void ReverbState::update(const ALCcontext *Context, const ALeffectslot *Slot, co * Where D is a diagonal matrix (of x), and S is a triangular matrix (of y) * whose combination of signs are being iterated. */ -inline void VectorPartialScatter(ALfloat *RESTRICT out, const ALfloat *RESTRICT in, - const ALfloat xCoeff, const ALfloat yCoeff) +inline void VectorPartialScatter(std::array<float,NUM_LINES> &RESTRICT out, + const std::array<float,NUM_LINES> &RESTRICT in, const ALfloat xCoeff, const ALfloat yCoeff) { out[0] = xCoeff*in[0] + yCoeff*( in[1] + -in[2] + in[3]); out[1] = xCoeff*in[1] + yCoeff*(-in[0] + in[2] + in[3]); @@ -1051,7 +1043,7 @@ void VectorScatterRevDelayIn(const DelayLineI delay, ALint offset, const ALfloat offset &= delay.Mask; ALsizei td{mini(delay.Mask+1 - offset, count-i)}; do { - ALfloat f[NUM_LINES]; + std::array<float,NUM_LINES> f; for(ALsizei j{0};j < NUM_LINES;j++) f[NUM_LINES-1-j] = in[j][base+i]; ++i; @@ -1094,7 +1086,7 @@ void VecAllpass::processUnfaded(const al::span<FloatBufferLine,NUM_LINES> sample ALsizei td{mini(delay.Mask+1 - maxoff, todo - i)}; do { - ALfloat f[NUM_LINES]; + std::array<float,NUM_LINES> f; for(ALsizei j{0};j < NUM_LINES;j++) { const ALfloat input{samples[j][i]}; @@ -1140,7 +1132,7 @@ void VecAllpass::processFaded(const al::span<FloatBufferLine,NUM_LINES> samples, do { fade += FadeStep; - ALfloat f[NUM_LINES]; + std::array<float,NUM_LINES> f; for(ALsizei j{0};j < NUM_LINES;j++) f[j] = delay.Line[vap_offset[j][0]++][j]*(1.0f-fade) + delay.Line[vap_offset[j][1]++][j]*fade; |