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-rw-r--r--Alc/effects/modulator.c307
1 files changed, 0 insertions, 307 deletions
diff --git a/Alc/effects/modulator.c b/Alc/effects/modulator.c
deleted file mode 100644
index 87799dd7..00000000
--- a/Alc/effects/modulator.c
+++ /dev/null
@@ -1,307 +0,0 @@
-/**
- * OpenAL cross platform audio library
- * Copyright (C) 2009 by Chris Robinson.
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- * Or go to http://www.gnu.org/copyleft/lgpl.html
- */
-
-#include "config.h"
-
-#include <math.h>
-#include <stdlib.h>
-
-#include "alMain.h"
-#include "alAuxEffectSlot.h"
-#include "alError.h"
-#include "alu.h"
-#include "filters/defs.h"
-
-
-#define MAX_UPDATE_SAMPLES 128
-
-typedef struct ALmodulatorState {
- DERIVE_FROM_TYPE(ALeffectState);
-
- void (*GetSamples)(ALfloat*RESTRICT, ALsizei, const ALsizei, ALsizei);
-
- ALsizei index;
- ALsizei step;
-
- struct {
- BiquadFilter Filter;
-
- ALfloat CurrentGains[MAX_OUTPUT_CHANNELS];
- ALfloat TargetGains[MAX_OUTPUT_CHANNELS];
- } Chans[MAX_EFFECT_CHANNELS];
-} ALmodulatorState;
-
-static ALvoid ALmodulatorState_Destruct(ALmodulatorState *state);
-static ALboolean ALmodulatorState_deviceUpdate(ALmodulatorState *state, ALCdevice *device);
-static ALvoid ALmodulatorState_update(ALmodulatorState *state, const ALCcontext *context, const ALeffectslot *slot, const ALeffectProps *props);
-static ALvoid ALmodulatorState_process(ALmodulatorState *state, ALsizei SamplesToDo, const ALfloat (*RESTRICT SamplesIn)[BUFFERSIZE], ALfloat (*RESTRICT SamplesOut)[BUFFERSIZE], ALsizei NumChannels);
-DECLARE_DEFAULT_ALLOCATORS(ALmodulatorState)
-
-DEFINE_ALEFFECTSTATE_VTABLE(ALmodulatorState);
-
-
-#define WAVEFORM_FRACBITS 24
-#define WAVEFORM_FRACONE (1<<WAVEFORM_FRACBITS)
-#define WAVEFORM_FRACMASK (WAVEFORM_FRACONE-1)
-
-static inline ALfloat Sin(ALsizei index)
-{
- return sinf((ALfloat)index * (F_TAU / WAVEFORM_FRACONE));
-}
-
-static inline ALfloat Saw(ALsizei index)
-{
- return (ALfloat)index*(2.0f/WAVEFORM_FRACONE) - 1.0f;
-}
-
-static inline ALfloat Square(ALsizei index)
-{
- return (ALfloat)(((index>>(WAVEFORM_FRACBITS-2))&2) - 1);
-}
-
-static inline ALfloat One(ALsizei UNUSED(index))
-{
- return 1.0f;
-}
-
-#define DECL_TEMPLATE(func) \
-static void Modulate##func(ALfloat *RESTRICT dst, ALsizei index, \
- const ALsizei step, ALsizei todo) \
-{ \
- ALsizei i; \
- for(i = 0;i < todo;i++) \
- { \
- index += step; \
- index &= WAVEFORM_FRACMASK; \
- dst[i] = func(index); \
- } \
-}
-
-DECL_TEMPLATE(Sin)
-DECL_TEMPLATE(Saw)
-DECL_TEMPLATE(Square)
-DECL_TEMPLATE(One)
-
-#undef DECL_TEMPLATE
-
-
-static void ALmodulatorState_Construct(ALmodulatorState *state)
-{
- ALeffectState_Construct(STATIC_CAST(ALeffectState, state));
- SET_VTABLE2(ALmodulatorState, ALeffectState, state);
-
- state->index = 0;
- state->step = 1;
-}
-
-static ALvoid ALmodulatorState_Destruct(ALmodulatorState *state)
-{
- ALeffectState_Destruct(STATIC_CAST(ALeffectState,state));
-}
-
-static ALboolean ALmodulatorState_deviceUpdate(ALmodulatorState *state, ALCdevice *UNUSED(device))
-{
- ALsizei i, j;
- for(i = 0;i < MAX_EFFECT_CHANNELS;i++)
- {
- BiquadFilter_clear(&state->Chans[i].Filter);
- for(j = 0;j < MAX_OUTPUT_CHANNELS;j++)
- state->Chans[i].CurrentGains[j] = 0.0f;
- }
- return AL_TRUE;
-}
-
-static ALvoid ALmodulatorState_update(ALmodulatorState *state, const ALCcontext *context, const ALeffectslot *slot, const ALeffectProps *props)
-{
- const ALCdevice *device = context->Device;
- ALfloat f0norm;
- ALsizei i;
-
- state->step = fastf2i(props->Modulator.Frequency / (ALfloat)device->Frequency *
- WAVEFORM_FRACONE);
- state->step = clampi(state->step, 0, WAVEFORM_FRACONE-1);
-
- if(state->step == 0)
- state->GetSamples = ModulateOne;
- else if(props->Modulator.Waveform == AL_RING_MODULATOR_SINUSOID)
- state->GetSamples = ModulateSin;
- else if(props->Modulator.Waveform == AL_RING_MODULATOR_SAWTOOTH)
- state->GetSamples = ModulateSaw;
- else /*if(Slot->Params.EffectProps.Modulator.Waveform == AL_RING_MODULATOR_SQUARE)*/
- state->GetSamples = ModulateSquare;
-
- f0norm = props->Modulator.HighPassCutoff / (ALfloat)device->Frequency;
- f0norm = clampf(f0norm, 1.0f/512.0f, 0.49f);
- /* Bandwidth value is constant in octaves. */
- BiquadFilter_setParams(&state->Chans[0].Filter, BiquadType_HighPass, 1.0f,
- f0norm, calc_rcpQ_from_bandwidth(f0norm, 0.75f));
- for(i = 1;i < MAX_EFFECT_CHANNELS;i++)
- BiquadFilter_copyParams(&state->Chans[i].Filter, &state->Chans[0].Filter);
-
- STATIC_CAST(ALeffectState,state)->OutBuffer = device->FOAOut.Buffer;
- STATIC_CAST(ALeffectState,state)->OutChannels = device->FOAOut.NumChannels;
- for(i = 0;i < MAX_EFFECT_CHANNELS;i++)
- ComputePanGains(&device->FOAOut, IdentityMatrixf.m[i], slot->Params.Gain,
- state->Chans[i].TargetGains);
-}
-
-static ALvoid ALmodulatorState_process(ALmodulatorState *state, ALsizei SamplesToDo, const ALfloat (*RESTRICT SamplesIn)[BUFFERSIZE], ALfloat (*RESTRICT SamplesOut)[BUFFERSIZE], ALsizei NumChannels)
-{
- const ALsizei step = state->step;
- ALsizei base;
-
- for(base = 0;base < SamplesToDo;)
- {
- alignas(16) ALfloat modsamples[MAX_UPDATE_SAMPLES];
- ALsizei td = mini(MAX_UPDATE_SAMPLES, SamplesToDo-base);
- ALsizei c, i;
-
- state->GetSamples(modsamples, state->index, step, td);
- state->index += (step*td) & WAVEFORM_FRACMASK;
- state->index &= WAVEFORM_FRACMASK;
-
- for(c = 0;c < MAX_EFFECT_CHANNELS;c++)
- {
- alignas(16) ALfloat temps[MAX_UPDATE_SAMPLES];
-
- 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);
- }
-
- base += td;
- }
-}
-
-
-typedef struct ModulatorStateFactory {
- DERIVE_FROM_TYPE(EffectStateFactory);
-} ModulatorStateFactory;
-
-static ALeffectState *ModulatorStateFactory_create(ModulatorStateFactory *UNUSED(factory))
-{
- ALmodulatorState *state;
-
- NEW_OBJ0(state, ALmodulatorState)();
- if(!state) return NULL;
-
- return STATIC_CAST(ALeffectState, state);
-}
-
-DEFINE_EFFECTSTATEFACTORY_VTABLE(ModulatorStateFactory);
-
-EffectStateFactory *ModulatorStateFactory_getFactory(void)
-{
- static ModulatorStateFactory ModulatorFactory = { { GET_VTABLE2(ModulatorStateFactory, EffectStateFactory) } };
-
- return STATIC_CAST(EffectStateFactory, &ModulatorFactory);
-}
-
-
-void ALmodulator_setParamf(ALeffect *effect, ALCcontext *context, ALenum param, ALfloat val)
-{
- ALeffectProps *props = &effect->Props;
- switch(param)
- {
- case AL_RING_MODULATOR_FREQUENCY:
- if(!(val >= AL_RING_MODULATOR_MIN_FREQUENCY && val <= AL_RING_MODULATOR_MAX_FREQUENCY))
- SETERR_RETURN(context, AL_INVALID_VALUE,, "Modulator frequency out of range");
- props->Modulator.Frequency = val;
- break;
-
- case AL_RING_MODULATOR_HIGHPASS_CUTOFF:
- if(!(val >= AL_RING_MODULATOR_MIN_HIGHPASS_CUTOFF && val <= AL_RING_MODULATOR_MAX_HIGHPASS_CUTOFF))
- SETERR_RETURN(context, AL_INVALID_VALUE,, "Modulator high-pass cutoff out of range");
- props->Modulator.HighPassCutoff = val;
- break;
-
- default:
- alSetError(context, AL_INVALID_ENUM, "Invalid modulator float property 0x%04x", param);
- }
-}
-void ALmodulator_setParamfv(ALeffect *effect, ALCcontext *context, ALenum param, const ALfloat *vals)
-{ ALmodulator_setParamf(effect, context, param, vals[0]); }
-void ALmodulator_setParami(ALeffect *effect, ALCcontext *context, ALenum param, ALint val)
-{
- ALeffectProps *props = &effect->Props;
- switch(param)
- {
- case AL_RING_MODULATOR_FREQUENCY:
- case AL_RING_MODULATOR_HIGHPASS_CUTOFF:
- ALmodulator_setParamf(effect, context, param, (ALfloat)val);
- break;
-
- case AL_RING_MODULATOR_WAVEFORM:
- if(!(val >= AL_RING_MODULATOR_MIN_WAVEFORM && val <= AL_RING_MODULATOR_MAX_WAVEFORM))
- SETERR_RETURN(context, AL_INVALID_VALUE,, "Invalid modulator waveform");
- props->Modulator.Waveform = val;
- break;
-
- default:
- alSetError(context, AL_INVALID_ENUM, "Invalid modulator integer property 0x%04x", param);
- }
-}
-void ALmodulator_setParamiv(ALeffect *effect, ALCcontext *context, ALenum param, const ALint *vals)
-{ ALmodulator_setParami(effect, context, param, vals[0]); }
-
-void ALmodulator_getParami(const ALeffect *effect, ALCcontext *context, ALenum param, ALint *val)
-{
- const ALeffectProps *props = &effect->Props;
- switch(param)
- {
- case AL_RING_MODULATOR_FREQUENCY:
- *val = (ALint)props->Modulator.Frequency;
- break;
- case AL_RING_MODULATOR_HIGHPASS_CUTOFF:
- *val = (ALint)props->Modulator.HighPassCutoff;
- break;
- case AL_RING_MODULATOR_WAVEFORM:
- *val = props->Modulator.Waveform;
- break;
-
- default:
- alSetError(context, AL_INVALID_ENUM, "Invalid modulator integer property 0x%04x", param);
- }
-}
-void ALmodulator_getParamiv(const ALeffect *effect, ALCcontext *context, ALenum param, ALint *vals)
-{ ALmodulator_getParami(effect, context, param, vals); }
-void ALmodulator_getParamf(const ALeffect *effect, ALCcontext *context, ALenum param, ALfloat *val)
-{
- const ALeffectProps *props = &effect->Props;
- switch(param)
- {
- case AL_RING_MODULATOR_FREQUENCY:
- *val = props->Modulator.Frequency;
- break;
- case AL_RING_MODULATOR_HIGHPASS_CUTOFF:
- *val = props->Modulator.HighPassCutoff;
- break;
-
- default:
- alSetError(context, AL_INVALID_ENUM, "Invalid modulator float property 0x%04x", param);
- }
-}
-void ALmodulator_getParamfv(const ALeffect *effect, ALCcontext *context, ALenum param, ALfloat *vals)
-{ ALmodulator_getParamf(effect, context, param, vals); }
-
-DEFINE_ALEFFECT_VTABLE(ALmodulator);
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