ref: fa8fc530f8604c935804008cec6e2c89702c6f18
dir: /src/mixer/ft2_center_mix.c/
#include <stdint.h> #include <stdbool.h> #include "ft2_mix_macros.h" /* Check out ft2_mix.c for comments on how this works. ** These are duplicates for center-mixing (slightly faster when it can be used). */ /* ----------------------------------------------------------------------- */ /* 8-BIT CENTER MIXING ROUTINES */ /* ----------------------------------------------------------------------- */ void centerMix8bNoLoop(voice_t *v, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t pos; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO GET_MIXER_VARS SET_BASE8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_MONO INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_MONO INC_POS RENDER_8BIT_SMP_MONO INC_POS RENDER_8BIT_SMP_MONO INC_POS RENDER_8BIT_SMP_MONO INC_POS } HANDLE_SAMPLE_END } SET_BACK_MIXER_POS } void centerMix8bLoop(voice_t *v, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t pos; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO GET_MIXER_VARS SET_BASE8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_MONO INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_MONO INC_POS RENDER_8BIT_SMP_MONO INC_POS RENDER_8BIT_SMP_MONO INC_POS RENDER_8BIT_SMP_MONO INC_POS } WRAP_LOOP } SET_BACK_MIXER_POS } void centerMix8bBidiLoop(voice_t *v, uint32_t numSamples) { const int8_t *base, *revBase, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t pos; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac, tmpDelta; GET_VOL_MONO GET_MIXER_VARS SET_BASE8_BIDI samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; START_BIDI for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_MONO INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_MONO INC_POS_BIDI RENDER_8BIT_SMP_MONO INC_POS_BIDI RENDER_8BIT_SMP_MONO INC_POS_BIDI RENDER_8BIT_SMP_MONO INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_BACK_MIXER_POS } void centerMix8bNoLoopIntrp(voice_t *v, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, fSample2, fSample3, fSample4, *fMixBufferL, *fMixBufferR; int32_t pos; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO GET_MIXER_VARS SET_BASE8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_MONO_INTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_MONO_INTRP INC_POS RENDER_8BIT_SMP_MONO_INTRP INC_POS RENDER_8BIT_SMP_MONO_INTRP INC_POS RENDER_8BIT_SMP_MONO_INTRP INC_POS } HANDLE_SAMPLE_END } SET_BACK_MIXER_POS } void centerMix8bLoopIntrp(voice_t *v, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, fSample2, fSample3, fSample4, *fMixBufferL, *fMixBufferR; int32_t pos; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO GET_MIXER_VARS SET_BASE8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_MONO_INTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_MONO_INTRP INC_POS RENDER_8BIT_SMP_MONO_INTRP INC_POS RENDER_8BIT_SMP_MONO_INTRP INC_POS RENDER_8BIT_SMP_MONO_INTRP INC_POS } WRAP_LOOP } SET_BACK_MIXER_POS } void centerMix8bBidiLoopIntrp(voice_t *v, uint32_t numSamples) { const int8_t *base, *revBase, *smpPtr; float fSample, fSample2, fSample3, fSample4, *fMixBufferL, *fMixBufferR; int32_t pos; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac, tmpDelta; GET_VOL_MONO GET_MIXER_VARS SET_BASE8_BIDI samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; START_BIDI for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_MONO_INTRP INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_MONO_INTRP INC_POS_BIDI RENDER_8BIT_SMP_MONO_INTRP INC_POS_BIDI RENDER_8BIT_SMP_MONO_INTRP INC_POS_BIDI RENDER_8BIT_SMP_MONO_INTRP INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_BACK_MIXER_POS } void centerMix8bRampNoLoop(voice_t *v, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t pos; float fVolLDelta, fVolL; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO_RAMP GET_MIXER_VARS_MONO_RAMP SET_BASE8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_MONO_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS RENDER_8BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS RENDER_8BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS RENDER_8BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS } HANDLE_SAMPLE_END } SET_VOL_BACK_MONO SET_BACK_MIXER_POS } void centerMix8bRampLoop(voice_t *v, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t pos; float fVolLDelta, fVolL; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO_RAMP GET_MIXER_VARS_MONO_RAMP SET_BASE8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_MONO_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS RENDER_8BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS RENDER_8BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS RENDER_8BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS } WRAP_LOOP } SET_VOL_BACK_MONO SET_BACK_MIXER_POS } void centerMix8bRampBidiLoop(voice_t *v, uint32_t numSamples) { const int8_t *base, *revBase, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t pos; float fVolLDelta, fVolL; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac, tmpDelta; GET_VOL_MONO_RAMP GET_MIXER_VARS_MONO_RAMP SET_BASE8_BIDI samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_MONO_RAMP samplesLeft -= samplesToMix; START_BIDI for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS_BIDI RENDER_8BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS_BIDI RENDER_8BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS_BIDI RENDER_8BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_VOL_BACK_MONO SET_BACK_MIXER_POS } void centerMix8bRampNoLoopIntrp(voice_t *v, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, fSample2, fSample3, fSample4, *fMixBufferL, *fMixBufferR; int32_t pos; float fVolLDelta, fVolL; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO_RAMP GET_MIXER_VARS_MONO_RAMP SET_BASE8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_MONO_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS RENDER_8BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS RENDER_8BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS RENDER_8BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS } HANDLE_SAMPLE_END } SET_VOL_BACK_MONO SET_BACK_MIXER_POS } void centerMix8bRampLoopIntrp(voice_t *v, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, fSample2, fSample3, fSample4, *fMixBufferL, *fMixBufferR; int32_t pos; float fVolLDelta, fVolL; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO_RAMP GET_MIXER_VARS_MONO_RAMP SET_BASE8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_MONO_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS RENDER_8BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS RENDER_8BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS RENDER_8BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS } WRAP_LOOP } SET_VOL_BACK_MONO SET_BACK_MIXER_POS } void centerMix8bRampBidiLoopIntrp(voice_t *v, uint32_t numSamples) { const int8_t *base, *revBase, *smpPtr; float fSample, fSample2, fSample3, fSample4, *fMixBufferL, *fMixBufferR; int32_t pos; float fVolLDelta, fVolL; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac, tmpDelta; GET_VOL_MONO_RAMP GET_MIXER_VARS_MONO_RAMP SET_BASE8_BIDI samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_MONO_RAMP samplesLeft -= samplesToMix; START_BIDI for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS_BIDI RENDER_8BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS_BIDI RENDER_8BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS_BIDI RENDER_8BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_VOL_BACK_MONO SET_BACK_MIXER_POS } /* ----------------------------------------------------------------------- */ /* 16-BIT CENTER MIXING ROUTINES */ /* ----------------------------------------------------------------------- */ void centerMix16bNoLoop(voice_t *v, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t pos; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO GET_MIXER_VARS SET_BASE16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_MONO INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_MONO INC_POS RENDER_16BIT_SMP_MONO INC_POS RENDER_16BIT_SMP_MONO INC_POS RENDER_16BIT_SMP_MONO INC_POS } HANDLE_SAMPLE_END } SET_BACK_MIXER_POS } void centerMix16bLoop(voice_t *v, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t pos; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO GET_MIXER_VARS SET_BASE16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_MONO INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_MONO INC_POS RENDER_16BIT_SMP_MONO INC_POS RENDER_16BIT_SMP_MONO INC_POS RENDER_16BIT_SMP_MONO INC_POS } WRAP_LOOP } SET_BACK_MIXER_POS } void centerMix16bBidiLoop(voice_t *v, uint32_t numSamples) { const int16_t *base, *revBase, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t pos; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac, tmpDelta; GET_VOL_MONO GET_MIXER_VARS SET_BASE16_BIDI samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; START_BIDI for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_MONO INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_MONO INC_POS_BIDI RENDER_16BIT_SMP_MONO INC_POS_BIDI RENDER_16BIT_SMP_MONO INC_POS_BIDI RENDER_16BIT_SMP_MONO INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_BACK_MIXER_POS } void centerMix16bNoLoopIntrp(voice_t *v, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, fSample2, fSample3, fSample4, *fMixBufferL, *fMixBufferR; int32_t pos; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO GET_MIXER_VARS SET_BASE16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_MONO_INTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_MONO_INTRP INC_POS RENDER_16BIT_SMP_MONO_INTRP INC_POS RENDER_16BIT_SMP_MONO_INTRP INC_POS RENDER_16BIT_SMP_MONO_INTRP INC_POS } HANDLE_SAMPLE_END } SET_BACK_MIXER_POS } void centerMix16bLoopIntrp(voice_t *v, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, fSample2, fSample3, fSample4, *fMixBufferL, *fMixBufferR; int32_t pos; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO GET_MIXER_VARS SET_BASE16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_MONO_INTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_MONO_INTRP INC_POS RENDER_16BIT_SMP_MONO_INTRP INC_POS RENDER_16BIT_SMP_MONO_INTRP INC_POS RENDER_16BIT_SMP_MONO_INTRP INC_POS } WRAP_LOOP } SET_BACK_MIXER_POS } void centerMix16bBidiLoopIntrp(voice_t *v, uint32_t numSamples) { const int16_t *base, *revBase, *smpPtr; float fSample, fSample2, fSample3, fSample4, *fMixBufferL, *fMixBufferR; int32_t pos; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac, tmpDelta; GET_VOL_MONO GET_MIXER_VARS SET_BASE16_BIDI samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; START_BIDI for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_MONO_INTRP INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_MONO_INTRP INC_POS_BIDI RENDER_16BIT_SMP_MONO_INTRP INC_POS_BIDI RENDER_16BIT_SMP_MONO_INTRP INC_POS_BIDI RENDER_16BIT_SMP_MONO_INTRP INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_BACK_MIXER_POS } void centerMix16bRampNoLoop(voice_t *v, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t pos; float fVolLDelta, fVolL; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO_RAMP GET_MIXER_VARS_MONO_RAMP SET_BASE16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_MONO_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS RENDER_16BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS RENDER_16BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS RENDER_16BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS } HANDLE_SAMPLE_END } SET_VOL_BACK_MONO SET_BACK_MIXER_POS } void centerMix16bRampLoop(voice_t *v, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t pos; float fVolLDelta, fVolL; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO_RAMP GET_MIXER_VARS_MONO_RAMP SET_BASE16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_MONO_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS RENDER_16BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS RENDER_16BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS RENDER_16BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS } WRAP_LOOP } SET_VOL_BACK_MONO SET_BACK_MIXER_POS } void centerMix16bRampBidiLoop(voice_t *v, uint32_t numSamples) { const int16_t *base, *revBase, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t pos; float fVolLDelta, fVolL; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac, tmpDelta; GET_VOL_MONO_RAMP GET_MIXER_VARS_MONO_RAMP SET_BASE16_BIDI samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_MONO_RAMP samplesLeft -= samplesToMix; START_BIDI for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS_BIDI RENDER_16BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS_BIDI RENDER_16BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS_BIDI RENDER_16BIT_SMP_MONO VOLUME_RAMPING_MONO INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_VOL_BACK_MONO SET_BACK_MIXER_POS } void centerMix16bRampNoLoopIntrp(voice_t *v, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, fSample2, fSample3, fSample4, *fMixBufferL, *fMixBufferR; int32_t pos; float fVolLDelta, fVolL; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO_RAMP GET_MIXER_VARS_MONO_RAMP SET_BASE16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_MONO_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS RENDER_16BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS RENDER_16BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS RENDER_16BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS } HANDLE_SAMPLE_END } SET_VOL_BACK_MONO SET_BACK_MIXER_POS } void centerMix16bRampLoopIntrp(voice_t *v, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, fSample2, fSample3, fSample4, *fMixBufferL, *fMixBufferR; int32_t pos; float fVolLDelta, fVolL; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac; GET_VOL_MONO_RAMP GET_MIXER_VARS_MONO_RAMP SET_BASE16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_MONO_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS RENDER_16BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS RENDER_16BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS RENDER_16BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS } WRAP_LOOP } SET_VOL_BACK_MONO SET_BACK_MIXER_POS } void centerMix16bRampBidiLoopIntrp(voice_t *v, uint32_t numSamples) { const int16_t *base, *revBase, *smpPtr; float fSample, fSample2, fSample3, fSample4, *fMixBufferL, *fMixBufferR; int32_t pos; float fVolLDelta, fVolL; uint32_t i, samplesToMix, samplesLeft; uint64_t posFrac, tmpDelta; GET_VOL_MONO_RAMP GET_MIXER_VARS_MONO_RAMP SET_BASE16_BIDI samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_MONO_RAMP samplesLeft -= samplesToMix; START_BIDI for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS_BIDI RENDER_16BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS_BIDI RENDER_16BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS_BIDI RENDER_16BIT_SMP_MONO_INTRP VOLUME_RAMPING_MONO INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_VOL_BACK_MONO SET_BACK_MIXER_POS }