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authorChris Robinson <[email protected]>2019-08-08 12:40:34 -0700
committerChris Robinson <[email protected]>2019-08-08 12:40:34 -0700
commita4391a213d705810a13f225e6927812ac69c52f8 (patch)
treee9d81c490d364dab375a4cf7e7a38ba758674a8e /alc
parente22dc272182a44d03452c9ef44198c8173053839 (diff)
Turn a couple methods into member functions
Diffstat (limited to 'alc')
-rw-r--r--alc/effects/reverb.cpp81
1 files changed, 40 insertions, 41 deletions
diff --git a/alc/effects/reverb.cpp b/alc/effects/reverb.cpp
index eb8db3d1..77ac0f94 100644
--- a/alc/effects/reverb.cpp
+++ b/alc/effects/reverb.cpp
@@ -226,6 +226,36 @@ struct DelayLineI {
ALsizei Mask{0};
ALfloat (*Line)[NUM_LINES]{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;
+ }
+
+ /* 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,
+ const ALuint extra)
+ {
+ /* All line lengths are powers of 2, calculated from their lengths in
+ * seconds, rounded up.
+ */
+ auto samples = static_cast<ALuint>(float2int(std::ceil(length*frequency)));
+ samples = NextPowerOf2(samples + extra);
+
+ /* All lines share a single sample buffer. */
+ Mask = samples - 1;
+ Line = reinterpret_cast<ALfloat(*)[NUM_LINES]>(offset);
+
+ /* Return the sample count for accumulation. */
+ return samples;
+ }
void write(ALsizei offset, const ALsizei c, const ALfloat *RESTRICT in, const ALsizei count) const noexcept
{
@@ -457,37 +487,6 @@ struct ReverbState final : public EffectState {
inline ALfloat CalcDelayLengthMult(ALfloat density)
{ return maxf(5.0f, std::cbrt(density*DENSITY_SCALE)); }
-/* Given the allocated sample buffer, this function updates each delay line
- * offset.
- */
-inline ALvoid RealizeLineOffset(ALfloat *sampleBuffer, DelayLineI *Delay)
-{
- union {
- ALfloat *f;
- ALfloat (*f4)[NUM_LINES];
- } u;
- u.f = &sampleBuffer[reinterpret_cast<ptrdiff_t>(Delay->Line) * NUM_LINES];
- Delay->Line = u.f4;
-}
-
-/* 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,
- const ALuint extra, DelayLineI *Delay)
-{
- /* All line lengths are powers of 2, calculated from their lengths in
- * seconds, rounded up.
- */
- auto samples = static_cast<ALuint>(float2int(std::ceil(length*frequency)));
- samples = NextPowerOf2(samples + extra);
-
- /* All lines share a single sample buffer. */
- Delay->Mask = samples - 1;
- Delay->Line = reinterpret_cast<ALfloat(*)[NUM_LINES]>(offset);
-
- /* Return the sample count for accumulation. */
- return samples;
-}
-
/* Calculates the delay line metrics and allocates the shared sample buffer
* for all lines given the sample rate (frequency). If an allocation failure
* occurs, it returns AL_FALSE.
@@ -512,25 +511,25 @@ bool ReverbState::allocLines(const ALfloat frequency)
ALfloat length{AL_EAXREVERB_MAX_REFLECTIONS_DELAY + EARLY_TAP_LENGTHS.back()*multiplier +
AL_EAXREVERB_MAX_LATE_REVERB_DELAY +
(LATE_LINE_LENGTHS.back() - LATE_LINE_LENGTHS.front())/float{LATE_LINE_LENGTHS_size}*multiplier};
- totalSamples += CalcLineLength(length, totalSamples, frequency, BUFFERSIZE, &mDelay);
+ totalSamples += mDelay.calcLineLength(length, totalSamples, frequency, BUFFERSIZE);
/* The early vector all-pass line. */
length = EARLY_ALLPASS_LENGTHS.back() * multiplier;
- totalSamples += CalcLineLength(length, totalSamples, frequency, 0, &mEarly.VecAp.Delay);
+ totalSamples += mEarly.VecAp.Delay.calcLineLength(length, totalSamples, frequency, 0);
/* The early reflection line. */
length = EARLY_LINE_LENGTHS.back() * multiplier;
- totalSamples += CalcLineLength(length, totalSamples, frequency, 0, &mEarly.Delay);
+ totalSamples += mEarly.Delay.calcLineLength(length, totalSamples, frequency, 0);
/* The late vector all-pass line. */
length = LATE_ALLPASS_LENGTHS.back() * multiplier;
- totalSamples += CalcLineLength(length, totalSamples, frequency, 0, &mLate.VecAp.Delay);
+ totalSamples += mLate.VecAp.Delay.calcLineLength(length, totalSamples, frequency, 0);
/* The late delay lines are calculated from the largest maximum density
* line length.
*/
length = LATE_LINE_LENGTHS.back() * multiplier;
- totalSamples += CalcLineLength(length, totalSamples, frequency, 0, &mLate.Delay);
+ totalSamples += mLate.Delay.calcLineLength(length, totalSamples, frequency, 0);
totalSamples *= NUM_LINES;
if(totalSamples != mSampleBuffer.size())
@@ -543,11 +542,11 @@ bool ReverbState::allocLines(const ALfloat frequency)
std::fill(mSampleBuffer.begin(), mSampleBuffer.end(), 0.0f);
/* Update all delays to reflect the new sample buffer. */
- RealizeLineOffset(mSampleBuffer.data(), &mDelay);
- RealizeLineOffset(mSampleBuffer.data(), &mEarly.VecAp.Delay);
- RealizeLineOffset(mSampleBuffer.data(), &mEarly.Delay);
- RealizeLineOffset(mSampleBuffer.data(), &mLate.VecAp.Delay);
- RealizeLineOffset(mSampleBuffer.data(), &mLate.Delay);
+ mDelay.realizeLineOffset(mSampleBuffer.data());
+ mEarly.VecAp.Delay.realizeLineOffset(mSampleBuffer.data());
+ mEarly.Delay.realizeLineOffset(mSampleBuffer.data());
+ mLate.VecAp.Delay.realizeLineOffset(mSampleBuffer.data());
+ mLate.Delay.realizeLineOffset(mSampleBuffer.data());
return true;
}