ref: 4fcc002b4ae32417b80298462c9b674acd3e32aa
dir: /src/mixer/ft2_mix.c/
#include <stdint.h> #include <stdbool.h> #include "ft2_mix.h" #include "ft2_mix_macros.h" /* ** ------------ 32-bit floating-point audio channel mixer ------------ ** (Note: Mixing macros can be found in ft2_mix_macros.h) ** ** Specifications: ** - Interpolation: None, 2-tap linear, 4-tap cubic spline, 8-tap windowed-sinc, 16-tap windowed-sinc ** - FT2-styled linear volume ramping (can be turned off) ** - 32.32 fixed-point precision for resampling delta/position ** - 32-bit floating-point precision for mixing and interpolation ** ** This file has separate routines for EVERY possible sampling variation: ** Interpolation none/sinc/linear/cubic, volumeramp on/off, 8-bit, 16-bit, no loop, loop, bidi. ** (48 mixing routines in total) ** ** Every voice has a function pointer set to the according mixing routine on ** sample trigger (from replayer, but set in audio thread), using a function ** pointer look-up table. All voices & pointers are always thread-safely cleared ** when changing any of the above attributes from the GUI, to prevent possible ** thread-related issues. ** ** ----------------------------------------------------------------------------- */ /* ----------------------------------------------------------------------- */ /* 8-BIT MIXING ROUTINES */ /* ----------------------------------------------------------------------- */ static void mix8bNoLoop(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL 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 INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP INC_POS RENDER_8BIT_SMP INC_POS RENDER_8BIT_SMP INC_POS RENDER_8BIT_SMP INC_POS } HANDLE_SAMPLE_END } SET_BACK_MIXER_POS } static void mix8bLoop(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL 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 INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP INC_POS RENDER_8BIT_SMP INC_POS RENDER_8BIT_SMP INC_POS RENDER_8BIT_SMP INC_POS } WRAP_LOOP } SET_BACK_MIXER_POS } static void mix8bBidiLoop(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *revBase, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL 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 INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP INC_POS_BIDI RENDER_8BIT_SMP INC_POS_BIDI RENDER_8BIT_SMP INC_POS_BIDI RENDER_8BIT_SMP INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_BACK_MIXER_POS } static void mix8bNoLoopS8Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL 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_S8INTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S8INTRP INC_POS RENDER_8BIT_SMP_S8INTRP INC_POS RENDER_8BIT_SMP_S8INTRP INC_POS RENDER_8BIT_SMP_S8INTRP INC_POS } HANDLE_SAMPLE_END } SET_BACK_MIXER_POS } static void mix8bLoopS8Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; int8_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL GET_MIXER_VARS SET_BASE8 PREPARE_TAP_FIX8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S8INTRP_TAP_FIX INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S8INTRP_TAP_FIX INC_POS RENDER_8BIT_SMP_S8INTRP_TAP_FIX INC_POS RENDER_8BIT_SMP_S8INTRP_TAP_FIX INC_POS RENDER_8BIT_SMP_S8INTRP_TAP_FIX INC_POS } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S8INTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S8INTRP INC_POS RENDER_8BIT_SMP_S8INTRP INC_POS RENDER_8BIT_SMP_S8INTRP INC_POS RENDER_8BIT_SMP_S8INTRP INC_POS } } WRAP_LOOP } SET_BACK_MIXER_POS } static void mix8bBidiLoopS8Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *revBase, *smpPtr; int8_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL GET_MIXER_VARS SET_BASE8_BIDI PREPARE_TAP_FIX8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; START_BIDI if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S8INTRP_TAP_FIX INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S8INTRP_TAP_FIX INC_POS_BIDI RENDER_8BIT_SMP_S8INTRP_TAP_FIX INC_POS_BIDI RENDER_8BIT_SMP_S8INTRP_TAP_FIX INC_POS_BIDI RENDER_8BIT_SMP_S8INTRP_TAP_FIX INC_POS_BIDI } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S8INTRP INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S8INTRP INC_POS_BIDI RENDER_8BIT_SMP_S8INTRP INC_POS_BIDI RENDER_8BIT_SMP_S8INTRP INC_POS_BIDI RENDER_8BIT_SMP_S8INTRP INC_POS_BIDI } } END_BIDI WRAP_BIDI_LOOP } SET_BACK_MIXER_POS } static void mix8bNoLoopLIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL 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_LINTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_LINTRP INC_POS RENDER_8BIT_SMP_LINTRP INC_POS RENDER_8BIT_SMP_LINTRP INC_POS RENDER_8BIT_SMP_LINTRP INC_POS } HANDLE_SAMPLE_END } SET_BACK_MIXER_POS } static void mix8bLoopLIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL 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_LINTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_LINTRP INC_POS RENDER_8BIT_SMP_LINTRP INC_POS RENDER_8BIT_SMP_LINTRP INC_POS RENDER_8BIT_SMP_LINTRP INC_POS } WRAP_LOOP } SET_BACK_MIXER_POS } static void mix8bBidiLoopLIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *revBase, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL 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_LINTRP INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_LINTRP INC_POS_BIDI RENDER_8BIT_SMP_LINTRP INC_POS_BIDI RENDER_8BIT_SMP_LINTRP INC_POS_BIDI RENDER_8BIT_SMP_LINTRP INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_BACK_MIXER_POS } static void mix8bNoLoopS32Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL 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_S16INTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S16INTRP INC_POS RENDER_8BIT_SMP_S16INTRP INC_POS RENDER_8BIT_SMP_S16INTRP INC_POS RENDER_8BIT_SMP_S16INTRP INC_POS } HANDLE_SAMPLE_END } SET_BACK_MIXER_POS } static void mix8bLoopS32Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; int8_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL GET_MIXER_VARS SET_BASE8 PREPARE_TAP_FIX8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S16INTRP_TAP_FIX INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S16INTRP_TAP_FIX INC_POS RENDER_8BIT_SMP_S16INTRP_TAP_FIX INC_POS RENDER_8BIT_SMP_S16INTRP_TAP_FIX INC_POS RENDER_8BIT_SMP_S16INTRP_TAP_FIX INC_POS } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S16INTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S16INTRP INC_POS RENDER_8BIT_SMP_S16INTRP INC_POS RENDER_8BIT_SMP_S16INTRP INC_POS RENDER_8BIT_SMP_S16INTRP INC_POS } } WRAP_LOOP } SET_BACK_MIXER_POS } static void mix8bBidiLoopS32Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *revBase, *smpPtr; int8_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL GET_MIXER_VARS SET_BASE8_BIDI PREPARE_TAP_FIX8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; START_BIDI if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S16INTRP_TAP_FIX INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S16INTRP_TAP_FIX INC_POS_BIDI RENDER_8BIT_SMP_S16INTRP_TAP_FIX INC_POS_BIDI RENDER_8BIT_SMP_S16INTRP_TAP_FIX INC_POS_BIDI RENDER_8BIT_SMP_S16INTRP_TAP_FIX INC_POS_BIDI } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S16INTRP INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S16INTRP INC_POS_BIDI RENDER_8BIT_SMP_S16INTRP INC_POS_BIDI RENDER_8BIT_SMP_S16INTRP INC_POS_BIDI RENDER_8BIT_SMP_S16INTRP INC_POS_BIDI } } END_BIDI WRAP_BIDI_LOOP } SET_BACK_MIXER_POS } static void mix8bNoLoopCIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL 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_CINTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_CINTRP INC_POS RENDER_8BIT_SMP_CINTRP INC_POS RENDER_8BIT_SMP_CINTRP INC_POS RENDER_8BIT_SMP_CINTRP INC_POS } HANDLE_SAMPLE_END } SET_BACK_MIXER_POS } static void mix8bLoopCIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; int8_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL GET_MIXER_VARS SET_BASE8 PREPARE_TAP_FIX8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_CINTRP_TAP_FIX INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_CINTRP_TAP_FIX INC_POS RENDER_8BIT_SMP_CINTRP_TAP_FIX INC_POS RENDER_8BIT_SMP_CINTRP_TAP_FIX INC_POS RENDER_8BIT_SMP_CINTRP_TAP_FIX INC_POS } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_CINTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_CINTRP INC_POS RENDER_8BIT_SMP_CINTRP INC_POS RENDER_8BIT_SMP_CINTRP INC_POS RENDER_8BIT_SMP_CINTRP INC_POS } } WRAP_LOOP } SET_BACK_MIXER_POS } static void mix8bBidiLoopCIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *revBase, *smpPtr; int8_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL GET_MIXER_VARS SET_BASE8_BIDI PREPARE_TAP_FIX8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; START_BIDI if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_CINTRP_TAP_FIX INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_CINTRP_TAP_FIX INC_POS_BIDI RENDER_8BIT_SMP_CINTRP_TAP_FIX INC_POS_BIDI RENDER_8BIT_SMP_CINTRP_TAP_FIX INC_POS_BIDI RENDER_8BIT_SMP_CINTRP_TAP_FIX INC_POS_BIDI } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_CINTRP INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_CINTRP INC_POS_BIDI RENDER_8BIT_SMP_CINTRP INC_POS_BIDI RENDER_8BIT_SMP_CINTRP INC_POS_BIDI RENDER_8BIT_SMP_CINTRP INC_POS_BIDI } } END_BIDI WRAP_BIDI_LOOP } SET_BACK_MIXER_POS } static void mix8bRampNoLoop(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP VOLUME_RAMPING INC_POS } HANDLE_SAMPLE_END } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix8bRampLoop(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP VOLUME_RAMPING INC_POS } WRAP_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix8bRampBidiLoop(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *revBase, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE8_BIDI samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; START_BIDI for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP VOLUME_RAMPING INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix8bRampNoLoopS8Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS } HANDLE_SAMPLE_END } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix8bRampLoopS8Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; int8_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE8 PREPARE_TAP_FIX8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS } } WRAP_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix8bRampBidiLoopS8Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *revBase, *smpPtr; int8_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE8_BIDI PREPARE_TAP_FIX8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; START_BIDI if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS_BIDI } } END_BIDI WRAP_BIDI_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix8bRampNoLoopLIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_LINTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_LINTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_LINTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_LINTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_LINTRP VOLUME_RAMPING INC_POS } HANDLE_SAMPLE_END } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix8bRampLoopLIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_LINTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_LINTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_LINTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_LINTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_LINTRP VOLUME_RAMPING INC_POS } WRAP_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix8bRampBidiLoopLIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *revBase, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE8_BIDI samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; START_BIDI for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_LINTRP VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_LINTRP VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_LINTRP VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_LINTRP VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_LINTRP VOLUME_RAMPING INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix8bRampNoLoopS32Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS } HANDLE_SAMPLE_END } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix8bRampLoopS32Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; int8_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE8 PREPARE_TAP_FIX8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS } } WRAP_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix8bRampBidiLoopS32Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *revBase, *smpPtr; int8_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE8_BIDI PREPARE_TAP_FIX8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; START_BIDI if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS_BIDI } } END_BIDI WRAP_BIDI_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix8bRampNoLoopCIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_CINTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_CINTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_CINTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_CINTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_CINTRP VOLUME_RAMPING INC_POS } HANDLE_SAMPLE_END } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix8bRampLoopCIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *smpPtr; int8_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE8 PREPARE_TAP_FIX8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_CINTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_CINTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_CINTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_CINTRP VOLUME_RAMPING INC_POS RENDER_8BIT_SMP_CINTRP VOLUME_RAMPING INC_POS } } WRAP_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix8bRampBidiLoopCIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int8_t *base, *revBase, *smpPtr; int8_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE8_BIDI PREPARE_TAP_FIX8 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; START_BIDI if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_8BIT_SMP_CINTRP VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_8BIT_SMP_CINTRP VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_CINTRP VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_CINTRP VOLUME_RAMPING INC_POS_BIDI RENDER_8BIT_SMP_CINTRP VOLUME_RAMPING INC_POS_BIDI } } END_BIDI WRAP_BIDI_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } /* ----------------------------------------------------------------------- */ /* 16-BIT MIXING ROUTINES */ /* ----------------------------------------------------------------------- */ static void mix16bNoLoop(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL 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 INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP INC_POS RENDER_16BIT_SMP INC_POS RENDER_16BIT_SMP INC_POS RENDER_16BIT_SMP INC_POS } HANDLE_SAMPLE_END } SET_BACK_MIXER_POS } static void mix16bLoop(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL 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 INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP INC_POS RENDER_16BIT_SMP INC_POS RENDER_16BIT_SMP INC_POS RENDER_16BIT_SMP INC_POS } WRAP_LOOP } SET_BACK_MIXER_POS } static void mix16bBidiLoop(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *revBase, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL 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 INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP INC_POS_BIDI RENDER_16BIT_SMP INC_POS_BIDI RENDER_16BIT_SMP INC_POS_BIDI RENDER_16BIT_SMP INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_BACK_MIXER_POS } static void mix16bNoLoopS8Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL 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_S8INTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S8INTRP INC_POS RENDER_16BIT_SMP_S8INTRP INC_POS RENDER_16BIT_SMP_S8INTRP INC_POS RENDER_16BIT_SMP_S8INTRP INC_POS } HANDLE_SAMPLE_END } SET_BACK_MIXER_POS } static void mix16bLoopS8Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; int16_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL GET_MIXER_VARS SET_BASE16 PREPARE_TAP_FIX16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S8INTRP_TAP_FIX INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S8INTRP_TAP_FIX INC_POS RENDER_16BIT_SMP_S8INTRP_TAP_FIX INC_POS RENDER_16BIT_SMP_S8INTRP_TAP_FIX INC_POS RENDER_16BIT_SMP_S8INTRP_TAP_FIX INC_POS } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S8INTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S8INTRP INC_POS RENDER_16BIT_SMP_S8INTRP INC_POS RENDER_16BIT_SMP_S8INTRP INC_POS RENDER_16BIT_SMP_S8INTRP INC_POS } } WRAP_LOOP } SET_BACK_MIXER_POS } static void mix16bBidiLoopS8Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *revBase, *smpPtr; int16_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL GET_MIXER_VARS SET_BASE16_BIDI PREPARE_TAP_FIX16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; START_BIDI if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S8INTRP_TAP_FIX INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S8INTRP_TAP_FIX INC_POS_BIDI RENDER_16BIT_SMP_S8INTRP_TAP_FIX INC_POS_BIDI RENDER_16BIT_SMP_S8INTRP_TAP_FIX INC_POS_BIDI RENDER_16BIT_SMP_S8INTRP_TAP_FIX INC_POS_BIDI } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S8INTRP INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S8INTRP INC_POS_BIDI RENDER_16BIT_SMP_S8INTRP INC_POS_BIDI RENDER_16BIT_SMP_S8INTRP INC_POS_BIDI RENDER_16BIT_SMP_S8INTRP INC_POS_BIDI } } END_BIDI WRAP_BIDI_LOOP } SET_BACK_MIXER_POS } static void mix16bNoLoopLIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL 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_LINTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_LINTRP INC_POS RENDER_16BIT_SMP_LINTRP INC_POS RENDER_16BIT_SMP_LINTRP INC_POS RENDER_16BIT_SMP_LINTRP INC_POS } HANDLE_SAMPLE_END } SET_BACK_MIXER_POS } static void mix16bLoopLIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL 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_LINTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_LINTRP INC_POS RENDER_16BIT_SMP_LINTRP INC_POS RENDER_16BIT_SMP_LINTRP INC_POS RENDER_16BIT_SMP_LINTRP INC_POS } WRAP_LOOP } SET_BACK_MIXER_POS } static void mix16bBidiLoopLIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *revBase, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL 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_LINTRP INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_LINTRP INC_POS_BIDI RENDER_16BIT_SMP_LINTRP INC_POS_BIDI RENDER_16BIT_SMP_LINTRP INC_POS_BIDI RENDER_16BIT_SMP_LINTRP INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_BACK_MIXER_POS } static void mix16bNoLoopS32Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL 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_S16INTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S16INTRP INC_POS RENDER_16BIT_SMP_S16INTRP INC_POS RENDER_16BIT_SMP_S16INTRP INC_POS RENDER_16BIT_SMP_S16INTRP INC_POS } HANDLE_SAMPLE_END } SET_BACK_MIXER_POS } static void mix16bLoopS32Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; int16_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL GET_MIXER_VARS SET_BASE16 PREPARE_TAP_FIX16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S16INTRP_TAP_FIX INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S16INTRP_TAP_FIX INC_POS RENDER_16BIT_SMP_S16INTRP_TAP_FIX INC_POS RENDER_16BIT_SMP_S16INTRP_TAP_FIX INC_POS RENDER_16BIT_SMP_S16INTRP_TAP_FIX INC_POS } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S16INTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S16INTRP INC_POS RENDER_16BIT_SMP_S16INTRP INC_POS RENDER_16BIT_SMP_S16INTRP INC_POS RENDER_16BIT_SMP_S16INTRP INC_POS } } WRAP_LOOP } SET_BACK_MIXER_POS } static void mix16bBidiLoopS32Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *revBase, *smpPtr; int16_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL GET_MIXER_VARS SET_BASE16_BIDI PREPARE_TAP_FIX16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; START_BIDI if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S16INTRP_TAP_FIX INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S16INTRP_TAP_FIX INC_POS_BIDI RENDER_16BIT_SMP_S16INTRP_TAP_FIX INC_POS_BIDI RENDER_16BIT_SMP_S16INTRP_TAP_FIX INC_POS_BIDI RENDER_16BIT_SMP_S16INTRP_TAP_FIX INC_POS_BIDI } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S16INTRP INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S16INTRP INC_POS_BIDI RENDER_16BIT_SMP_S16INTRP INC_POS_BIDI RENDER_16BIT_SMP_S16INTRP INC_POS_BIDI RENDER_16BIT_SMP_S16INTRP INC_POS_BIDI } } END_BIDI WRAP_BIDI_LOOP } SET_BACK_MIXER_POS } static void mix16bNoLoopCIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL 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_CINTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_CINTRP INC_POS RENDER_16BIT_SMP_CINTRP INC_POS RENDER_16BIT_SMP_CINTRP INC_POS RENDER_16BIT_SMP_CINTRP INC_POS } HANDLE_SAMPLE_END } SET_BACK_MIXER_POS } static void mix16bLoopCIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; int16_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL GET_MIXER_VARS SET_BASE16 PREPARE_TAP_FIX16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_CINTRP_TAP_FIX INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_CINTRP_TAP_FIX INC_POS RENDER_16BIT_SMP_CINTRP_TAP_FIX INC_POS RENDER_16BIT_SMP_CINTRP_TAP_FIX INC_POS RENDER_16BIT_SMP_CINTRP_TAP_FIX INC_POS } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_CINTRP INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_CINTRP INC_POS RENDER_16BIT_SMP_CINTRP INC_POS RENDER_16BIT_SMP_CINTRP INC_POS RENDER_16BIT_SMP_CINTRP INC_POS } } WRAP_LOOP } SET_BACK_MIXER_POS } static void mix16bBidiLoopCIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *revBase, *smpPtr; int16_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL GET_MIXER_VARS SET_BASE16_BIDI PREPARE_TAP_FIX16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM samplesLeft -= samplesToMix; START_BIDI if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_CINTRP_TAP_FIX INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_CINTRP_TAP_FIX INC_POS_BIDI RENDER_16BIT_SMP_CINTRP_TAP_FIX INC_POS_BIDI RENDER_16BIT_SMP_CINTRP_TAP_FIX INC_POS_BIDI RENDER_16BIT_SMP_CINTRP_TAP_FIX INC_POS_BIDI } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_CINTRP INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_CINTRP INC_POS_BIDI RENDER_16BIT_SMP_CINTRP INC_POS_BIDI RENDER_16BIT_SMP_CINTRP INC_POS_BIDI RENDER_16BIT_SMP_CINTRP INC_POS_BIDI } } END_BIDI WRAP_BIDI_LOOP } SET_BACK_MIXER_POS } static void mix16bRampNoLoop(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP VOLUME_RAMPING INC_POS } HANDLE_SAMPLE_END } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix16bRampLoop(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP VOLUME_RAMPING INC_POS } WRAP_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix16bRampBidiLoop(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *revBase, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE16_BIDI samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; START_BIDI for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP VOLUME_RAMPING INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix16bRampNoLoopS8Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS } HANDLE_SAMPLE_END } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix16bRampLoopS8Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; int16_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE16 PREPARE_TAP_FIX16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS } } WRAP_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix16bRampBidiLoopS8Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *revBase, *smpPtr; int16_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE16_BIDI PREPARE_TAP_FIX16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; START_BIDI if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_S8INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_S8INTRP VOLUME_RAMPING INC_POS_BIDI } } END_BIDI WRAP_BIDI_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix16bRampNoLoopLIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_LINTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_LINTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_LINTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_LINTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_LINTRP VOLUME_RAMPING INC_POS } HANDLE_SAMPLE_END } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix16bRampLoopLIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_LINTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_LINTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_LINTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_LINTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_LINTRP VOLUME_RAMPING INC_POS } WRAP_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix16bRampBidiLoopLIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *revBase, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE16_BIDI samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; START_BIDI for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_LINTRP VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_LINTRP VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_LINTRP VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_LINTRP VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_LINTRP VOLUME_RAMPING INC_POS_BIDI } END_BIDI WRAP_BIDI_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix16bRampNoLoopS32Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS } HANDLE_SAMPLE_END } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix16bRampLoopS32Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; int16_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE16 PREPARE_TAP_FIX16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS } } WRAP_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix16bRampBidiLoopS32Intrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *revBase, *smpPtr; int16_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE16_BIDI PREPARE_TAP_FIX16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; START_BIDI if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_S16INTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_S16INTRP VOLUME_RAMPING INC_POS_BIDI } } END_BIDI WRAP_BIDI_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix16bRampNoLoopCIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_CINTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_CINTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_CINTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_CINTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_CINTRP VOLUME_RAMPING INC_POS } HANDLE_SAMPLE_END } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix16bRampLoopCIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *smpPtr; int16_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE16 PREPARE_TAP_FIX16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_CINTRP VOLUME_RAMPING INC_POS } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_CINTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_CINTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_CINTRP VOLUME_RAMPING INC_POS RENDER_16BIT_SMP_CINTRP VOLUME_RAMPING INC_POS } } WRAP_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } static void mix16bRampBidiLoopCIntrp(voice_t *v, uint32_t bufferPos, uint32_t numSamples) { const int16_t *base, *revBase, *smpPtr; int16_t *smpTapPtr; float fSample, *fMixBufferL, *fMixBufferR; int32_t position; float fVolumeLDelta, fVolumeRDelta, fVolumeL, fVolumeR; uint32_t i, samplesToMix, samplesLeft; uint64_t positionFrac, tmpDelta; GET_VOL_RAMP GET_MIXER_VARS_RAMP SET_BASE16_BIDI PREPARE_TAP_FIX16 samplesLeft = numSamples; while (samplesLeft > 0) { LIMIT_MIX_NUM LIMIT_MIX_NUM_RAMP samplesLeft -= samplesToMix; START_BIDI if (v->hasLooped) // the negative interpolation taps need a special case after the sample has looped once { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_CINTRP_TAP_FIX VOLUME_RAMPING INC_POS_BIDI } } else { for (i = 0; i < (samplesToMix & 3); i++) { RENDER_16BIT_SMP_CINTRP VOLUME_RAMPING INC_POS_BIDI } samplesToMix >>= 2; for (i = 0; i < samplesToMix; i++) { RENDER_16BIT_SMP_CINTRP VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_CINTRP VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_CINTRP VOLUME_RAMPING INC_POS_BIDI RENDER_16BIT_SMP_CINTRP VOLUME_RAMPING INC_POS_BIDI } } END_BIDI WRAP_BIDI_LOOP } SET_VOL_BACK SET_BACK_MIXER_POS } // ----------------------------------------------------------------------- const mixFunc mixFuncTab[] = { // no volume ramping // 8-bit (mixFunc)mix8bNoLoop, (mixFunc)mix8bLoop, (mixFunc)mix8bBidiLoop, (mixFunc)mix8bNoLoopS8Intrp, (mixFunc)mix8bLoopS8Intrp, (mixFunc)mix8bBidiLoopS8Intrp, (mixFunc)mix8bNoLoopLIntrp, (mixFunc)mix8bLoopLIntrp, (mixFunc)mix8bBidiLoopLIntrp, (mixFunc)mix8bNoLoopS32Intrp, (mixFunc)mix8bLoopS32Intrp, (mixFunc)mix8bBidiLoopS32Intrp, (mixFunc)mix8bNoLoopCIntrp, (mixFunc)mix8bLoopCIntrp, (mixFunc)mix8bBidiLoopCIntrp, // 16-bit (mixFunc)mix16bNoLoop, (mixFunc)mix16bLoop, (mixFunc)mix16bBidiLoop, (mixFunc)mix16bNoLoopS8Intrp, (mixFunc)mix16bLoopS8Intrp, (mixFunc)mix16bBidiLoopS8Intrp, (mixFunc)mix16bNoLoopLIntrp, (mixFunc)mix16bLoopLIntrp, (mixFunc)mix16bBidiLoopLIntrp, (mixFunc)mix16bNoLoopS32Intrp, (mixFunc)mix16bLoopS32Intrp, (mixFunc)mix16bBidiLoopS32Intrp, (mixFunc)mix16bNoLoopCIntrp, (mixFunc)mix16bLoopCIntrp, (mixFunc)mix16bBidiLoopCIntrp, // volume ramping // 8-bit (mixFunc)mix8bRampNoLoop, (mixFunc)mix8bRampLoop, (mixFunc)mix8bRampBidiLoop, (mixFunc)mix8bRampNoLoopS8Intrp, (mixFunc)mix8bRampLoopS8Intrp, (mixFunc)mix8bRampBidiLoopS8Intrp, (mixFunc)mix8bRampNoLoopLIntrp, (mixFunc)mix8bRampLoopLIntrp, (mixFunc)mix8bRampBidiLoopLIntrp, (mixFunc)mix8bRampNoLoopS32Intrp, (mixFunc)mix8bRampLoopS32Intrp, (mixFunc)mix8bRampBidiLoopS32Intrp, (mixFunc)mix8bRampNoLoopCIntrp, (mixFunc)mix8bRampLoopCIntrp, (mixFunc)mix8bRampBidiLoopCIntrp, // 16-bit (mixFunc)mix16bRampNoLoop, (mixFunc)mix16bRampLoop, (mixFunc)mix16bRampBidiLoop, (mixFunc)mix16bRampNoLoopS8Intrp, (mixFunc)mix16bRampLoopS8Intrp, (mixFunc)mix16bRampBidiLoopS8Intrp, (mixFunc)mix16bRampNoLoopLIntrp, (mixFunc)mix16bRampLoopLIntrp, (mixFunc)mix16bRampBidiLoopLIntrp, (mixFunc)mix16bRampNoLoopS32Intrp, (mixFunc)mix16bRampLoopS32Intrp, (mixFunc)mix16bRampBidiLoopS32Intrp, (mixFunc)mix16bRampNoLoopCIntrp, (mixFunc)mix16bRampLoopCIntrp, (mixFunc)mix16bRampBidiLoopCIntrp };