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https://github.com/love2d/megasource.git
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Added OpenAL-Soft 1.16.0.
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rude
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#include "config.h"
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#ifdef IN_IDE_PARSER
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/* KDevelop's parser won't recognize these defines that get added by the -msse
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* switch used to compile this source. Without them, xmmintrin.h fails to
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* declare anything. */
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#define __MMX__
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#define __SSE__
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#endif
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#include <xmmintrin.h>
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#include "AL/al.h"
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#include "AL/alc.h"
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#include "alMain.h"
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#include "alu.h"
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#include "alSource.h"
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#include "alAuxEffectSlot.h"
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#include "mixer_defs.h"
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static inline void ApplyCoeffsStep(ALuint Offset, ALfloat (*restrict Values)[2],
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const ALuint IrSize,
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ALfloat (*restrict Coeffs)[2],
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const ALfloat (*restrict CoeffStep)[2],
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ALfloat left, ALfloat right)
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{
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const __m128 lrlr = _mm_setr_ps(left, right, left, right);
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__m128 coeffs, deltas, imp0, imp1;
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__m128 vals = _mm_setzero_ps();
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ALuint i;
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if((Offset&1))
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{
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const ALuint o0 = Offset&HRIR_MASK;
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const ALuint o1 = (Offset+IrSize-1)&HRIR_MASK;
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coeffs = _mm_load_ps(&Coeffs[0][0]);
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deltas = _mm_load_ps(&CoeffStep[0][0]);
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vals = _mm_loadl_pi(vals, (__m64*)&Values[o0][0]);
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imp0 = _mm_mul_ps(lrlr, coeffs);
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coeffs = _mm_add_ps(coeffs, deltas);
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vals = _mm_add_ps(imp0, vals);
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_mm_store_ps(&Coeffs[0][0], coeffs);
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_mm_storel_pi((__m64*)&Values[o0][0], vals);
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for(i = 1;i < IrSize-1;i += 2)
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{
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const ALuint o2 = (Offset+i)&HRIR_MASK;
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coeffs = _mm_load_ps(&Coeffs[i+1][0]);
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deltas = _mm_load_ps(&CoeffStep[i+1][0]);
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vals = _mm_load_ps(&Values[o2][0]);
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imp1 = _mm_mul_ps(lrlr, coeffs);
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coeffs = _mm_add_ps(coeffs, deltas);
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imp0 = _mm_shuffle_ps(imp0, imp1, _MM_SHUFFLE(1, 0, 3, 2));
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vals = _mm_add_ps(imp0, vals);
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_mm_store_ps(&Coeffs[i+1][0], coeffs);
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_mm_store_ps(&Values[o2][0], vals);
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imp0 = imp1;
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}
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vals = _mm_loadl_pi(vals, (__m64*)&Values[o1][0]);
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imp0 = _mm_movehl_ps(imp0, imp0);
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vals = _mm_add_ps(imp0, vals);
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_mm_storel_pi((__m64*)&Values[o1][0], vals);
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}
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else
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{
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for(i = 0;i < IrSize;i += 2)
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{
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const ALuint o = (Offset + i)&HRIR_MASK;
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coeffs = _mm_load_ps(&Coeffs[i][0]);
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deltas = _mm_load_ps(&CoeffStep[i][0]);
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vals = _mm_load_ps(&Values[o][0]);
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imp0 = _mm_mul_ps(lrlr, coeffs);
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coeffs = _mm_add_ps(coeffs, deltas);
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vals = _mm_add_ps(imp0, vals);
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_mm_store_ps(&Coeffs[i][0], coeffs);
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_mm_store_ps(&Values[o][0], vals);
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}
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}
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}
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static inline void ApplyCoeffs(ALuint Offset, ALfloat (*restrict Values)[2],
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const ALuint IrSize,
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ALfloat (*restrict Coeffs)[2],
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ALfloat left, ALfloat right)
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{
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const __m128 lrlr = _mm_setr_ps(left, right, left, right);
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__m128 vals = _mm_setzero_ps();
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__m128 coeffs;
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ALuint i;
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if((Offset&1))
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{
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const ALuint o0 = Offset&HRIR_MASK;
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const ALuint o1 = (Offset+IrSize-1)&HRIR_MASK;
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__m128 imp0, imp1;
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coeffs = _mm_load_ps(&Coeffs[0][0]);
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vals = _mm_loadl_pi(vals, (__m64*)&Values[o0][0]);
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imp0 = _mm_mul_ps(lrlr, coeffs);
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vals = _mm_add_ps(imp0, vals);
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_mm_storel_pi((__m64*)&Values[o0][0], vals);
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for(i = 1;i < IrSize-1;i += 2)
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{
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const ALuint o2 = (Offset+i)&HRIR_MASK;
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coeffs = _mm_load_ps(&Coeffs[i+1][0]);
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vals = _mm_load_ps(&Values[o2][0]);
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imp1 = _mm_mul_ps(lrlr, coeffs);
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imp0 = _mm_shuffle_ps(imp0, imp1, _MM_SHUFFLE(1, 0, 3, 2));
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vals = _mm_add_ps(imp0, vals);
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_mm_store_ps(&Values[o2][0], vals);
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imp0 = imp1;
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}
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vals = _mm_loadl_pi(vals, (__m64*)&Values[o1][0]);
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imp0 = _mm_movehl_ps(imp0, imp0);
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vals = _mm_add_ps(imp0, vals);
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_mm_storel_pi((__m64*)&Values[o1][0], vals);
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}
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else
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{
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for(i = 0;i < IrSize;i += 2)
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{
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const ALuint o = (Offset + i)&HRIR_MASK;
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coeffs = _mm_load_ps(&Coeffs[i][0]);
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vals = _mm_load_ps(&Values[o][0]);
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vals = _mm_add_ps(vals, _mm_mul_ps(lrlr, coeffs));
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_mm_store_ps(&Values[o][0], vals);
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}
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}
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}
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#define SUFFIX SSE
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#include "mixer_inc.c"
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#undef SUFFIX
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void Mix_SSE(const ALfloat *data, ALuint OutChans, ALfloat (*restrict OutBuffer)[BUFFERSIZE],
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MixGains *Gains, ALuint Counter, ALuint OutPos, ALuint BufferSize)
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{
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ALfloat gain, step;
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__m128 gain4, step4;
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ALuint c;
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for(c = 0;c < OutChans;c++)
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{
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ALuint pos = 0;
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gain = Gains[c].Current;
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step = Gains[c].Step;
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if(step != 1.0f && Counter > 0)
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{
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/* Mix with applying gain steps in aligned multiples of 4. */
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if(BufferSize-pos > 3 && Counter-pos > 3)
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{
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gain4 = _mm_setr_ps(
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gain,
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gain * step,
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gain * step * step,
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gain * step * step * step
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);
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step4 = _mm_set1_ps(step * step * step * step);
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do {
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const __m128 val4 = _mm_load_ps(&data[pos]);
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__m128 dry4 = _mm_load_ps(&OutBuffer[c][OutPos+pos]);
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dry4 = _mm_add_ps(dry4, _mm_mul_ps(val4, gain4));
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gain4 = _mm_mul_ps(gain4, step4);
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_mm_store_ps(&OutBuffer[c][OutPos+pos], dry4);
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pos += 4;
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} while(BufferSize-pos > 3 && Counter-pos > 3);
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gain = _mm_cvtss_f32(gain4);
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}
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/* Mix with applying left over gain steps that aren't aligned multiples of 4. */
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for(;pos < BufferSize && pos < Counter;pos++)
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{
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OutBuffer[c][OutPos+pos] += data[pos]*gain;
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gain *= step;
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}
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if(pos == Counter)
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gain = Gains[c].Target;
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Gains[c].Current = gain;
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/* Mix until pos is aligned with 4 or the mix is done. */
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for(;pos < BufferSize && (pos&3) != 0;pos++)
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OutBuffer[c][OutPos+pos] += data[pos]*gain;
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}
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if(!(gain > GAIN_SILENCE_THRESHOLD))
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continue;
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gain4 = _mm_set1_ps(gain);
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for(;BufferSize-pos > 3;pos += 4)
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{
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const __m128 val4 = _mm_load_ps(&data[pos]);
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__m128 dry4 = _mm_load_ps(&OutBuffer[c][OutPos+pos]);
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dry4 = _mm_add_ps(dry4, _mm_mul_ps(val4, gain4));
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_mm_store_ps(&OutBuffer[c][OutPos+pos], dry4);
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}
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for(;pos < BufferSize;pos++)
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OutBuffer[c][OutPos+pos] += data[pos]*gain;
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}
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}
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