Dima353/openal-soft
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Avoid extra sample copies and storage in the modulator effect

Browse Source
This commit is contained in:
Chris Robinson
2018-05-29 22:55:21 -07:00
parent 46c59f382f
commit 0b7f35b289
1 changed files with 7 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Alc/effects/modulator.c
+7 -8
View File
@@ -40,8 +40,6 @@ typedef struct ALmodulatorState {
ALsizei index;
ALsizei step;
alignas(16) ALfloat ModSamples[MAX_UPDATE_SAMPLES];
struct {
BiquadFilter Filter;
@@ -162,13 +160,12 @@ static ALvoid ALmodulatorState_update(ALmodulatorState *state, const ALCcontext
static ALvoid ALmodulatorState_process(ALmodulatorState *state, ALsizei SamplesToDo, const ALfloat (*restrict SamplesIn)[BUFFERSIZE], ALfloat (*restrict SamplesOut)[BUFFERSIZE], ALsizei NumChannels)
{
ALfloat *restrict modsamples = ASSUME_ALIGNED(state->ModSamples, 16);
const ALsizei step = state->step;
ALsizei base;
for(base = 0;base < SamplesToDo;)
{
alignas(16) ALfloat temps[2][MAX_UPDATE_SAMPLES];
alignas(16) ALfloat modsamples[MAX_UPDATE_SAMPLES];
ALsizei td = mini(MAX_UPDATE_SAMPLES, SamplesToDo-base);
ALsizei c, i;
@@ -178,11 +175,13 @@ static ALvoid ALmodulatorState_process(ALmodulatorState *state, ALsizei SamplesT
for(c = 0;c < MAX_EFFECT_CHANNELS;c++)
{
BiquadFilter_process(&state->Chans[c].Filter, temps[0], &SamplesIn[c][base], td);
for(i = 0;i < td;i++)
temps[1][i] = temps[0][i] * modsamples[i];
alignas(16) ALfloat temps[MAX_UPDATE_SAMPLES];
MixSamples(temps[1], NumChannels, SamplesOut, state->Chans[c].CurrentGains,
BiquadFilter_process(&state->Chans[c].Filter, temps, &SamplesIn[c][base], td);
for(i = 0;i < td;i++)
temps[i] *= modsamples[i];
MixSamples(temps, NumChannels, SamplesOut, state->Chans[c].CurrentGains,
state->Chans[c].TargetGains, SamplesToDo-base, base, td);
}