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Initial Commit
This commit is contained in:
Jeff Farrand
153
common/embeddedaudiosynthesis/arm-wt-22k/lib_src/ARM_synth_constants_gnu.inc
Executable file
153
common/embeddedaudiosynthesis/arm-wt-22k/lib_src/ARM_synth_constants_gnu.inc
Executable file
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@***********************************************************
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@ File: ARM_synth_constants.inc
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@ Processor: ARM
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@ Description: Contains constants and defines, most of which
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@ are mirrored in synth.h
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@
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@ Copyright Sonic Network Inc. 2004
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@****************************************************************
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@ Revision Control:
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@ $Revision: 741 $
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@ $Date: 2007-06-22 16:39:21 -0700 (Fri, 22 Jun 2007) $
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@****************************************************************
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.ifdef SAMPLE_RATE_8000
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.equ SYNTH_UPDATE_PERIOD_IN_BITS, 5
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.equ BUFFER_SIZE_IN_MONO_SAMPLES, 32
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.endif
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.ifdef SAMPLE_RATE_16000
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.equ SYNTH_UPDATE_PERIOD_IN_BITS, 6
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.equ BUFFER_SIZE_IN_MONO_SAMPLES, 64
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.endif
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.ifdef SAMPLE_RATE_20000
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.equ SYNTH_UPDATE_PERIOD_IN_BITS, 7
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.equ BUFFER_SIZE_IN_MONO_SAMPLES, 128
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.endif
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.ifdef SAMPLE_RATE_22050
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.equ SYNTH_UPDATE_PERIOD_IN_BITS, 7
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.equ BUFFER_SIZE_IN_MONO_SAMPLES, 128
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.endif
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.ifdef SAMPLE_RATE_24000
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.equ SYNTH_UPDATE_PERIOD_IN_BITS, 7
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.equ BUFFER_SIZE_IN_MONO_SAMPLES, 128
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.endif
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.ifdef SAMPLE_RATE_32000
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.equ SYNTH_UPDATE_PERIOD_IN_BITS, 7
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.equ BUFFER_SIZE_IN_MONO_SAMPLES, 128
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.endif
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.ifdef SAMPLE_RATE_44100
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.equ SYNTH_UPDATE_PERIOD_IN_BITS, 8
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.equ BUFFER_SIZE_IN_MONO_SAMPLES, 256
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.endif
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.ifdef SAMPLE_RATE_48000
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.equ SYNTH_UPDATE_PERIOD_IN_BITS, 8
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.equ BUFFER_SIZE_IN_MONO_SAMPLES, 256
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.endif
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@ if the OUTPUT PCM sample is 16-bits, then when using indexed addressing,
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@ the next sample is this many bytes away
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.equ NEXT_OUTPUT_PCM, 2
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@****************************************************************************
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@/* macros for fractional phase accumulator */
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.equ NUM_PHASE_FRAC_BITS, 15
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.equ PHASE_FRAC_MASK, 0x7FFF
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@ shift for phase accumulator when fraction carries over
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.ifdef SAMPLES_8_BIT
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.equ NEXT_INPUT_PCM_SHIFT, 0
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.endif
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.ifdef SAMPLES_16_BIT
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.equ NEXT_INPUT_PCM_SHIFT, 1
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.endif
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@****************************************************************************
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.equ NUM_MIXER_GUARD_BITS, 4
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@****************************************************************************
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@/* Envelope 1 (EG1) calculation macros */
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.equ NUM_EG1_FRAC_BITS, 15
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@****************************************************************************
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.equ NUM_ENHANCER_FILTER_COEF_FRAC_BITS, 5
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@****************************************************************************
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@
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@ I've temporarily given up on the idea of getting ADS/RV and gcc to
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@ handle a struct in a compatible fashion. Switching to old fashion EQU
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@
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.if FILTER_ENABLED
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@**************************************
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@ typedef struct s_filter_tag
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.equ m_z1, 0
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.equ m_z2, 2
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.endif
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@**************************************
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@ typedef struct s_wt_frame_tag
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.equ m_gainTarget, 0
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.equ m_phaseIncrement, 4
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.if FILTER_ENABLED
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.equ m_k, 8
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.equ m_b1, 12
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.equ m_b2, 16
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.equ m_pAudioBuffer, 20
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.equ m_pMixBuffer, 24
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.equ m_numSamples, 28
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.equ m_prevGain, 32
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.else
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.equ m_pAudioBuffer, 8
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.equ m_pMixBuffer, 12
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.equ m_numSamples, 16
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.equ m_prevGain, 20
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.endif
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@**************************************
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@ typedef struct s_wt_voice_tag
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.equ m_pLoopEnd, 0 @ /* points to last PCM sample (not 1 beyond last) */
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.equ m_pLoopStart, 4 @ /* points to first sample at start of loop */
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.equ m_pPhaseAccum, 8 @ /* points to first sample at start of loop */
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.equ m_phaseFrac, 12 @ /* points to first sample at start of loop */
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.if STEREO_OUTPUT
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.equ m_gainLeft, 16 @ /* current gain, left ch */
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.equ m_gainRight, 18 @ /* current gain, right ch */
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.endif
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@****************************************************************************
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@ enhancer
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.equ m_nEnhancerFeedForward1, 0
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.equ m_nEnhancerFeedback1, 1
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.equ m_nDriveCoef, 2
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.equ m_nEnhancerFeedback2, 3
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.equ m_nWet, 4
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.equ m_nDry, 5
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.equ m_zF0L, 6 @ filter 1 zero state var, left
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.equ m_zF1L, 8 @ filter 1 pole state var, left
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.equ m_zF2L, 10 @ filter 2 zero state var, left
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.equ m_zF0R, 12 @ filter 1 zero state var, right
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.equ m_zF1R, 14 @ filter 1 pole state var, right
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.equ m_zF2R, 16 @ filter 2 zero state var, right
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@****************************************************************************
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