3dbrew

DSP Memory Region: Difference between revisions

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|-
|-
| 4
| 4
| 70 bytes
| f32[3][2][2]
| TODO
| Input Gain (Each input has 12 channels)
|-
| 52
| f32
| Rate multiplier (1.0x == native DSP rate)
|-
| 56
| u8
| Interpolation mode
|-
| 57
| u8
| Polyphase filter select
|-
| 58
| u16
| bit[0]: Simple Filter enabled, bit[1]: Biquadratic Filter enabled
|-
| 60
| SimpleFilter
| Simple Filter (One pole normalized recursive linear filter)
|-
| 64
| BiquadFilter
| Biquadratic Filter (Two poles two zeros normalized recursive linear filter)
|-
|-
| 74
| 74
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|-
|-
| 164
| 164
| 8
| u32
| TODO
| Play position
|-
| 168
| 4
| ?
|-
|-
| 172
| 172
| u32
| u32
| Physical address of current buffer
| Physical address of embedded buffer
|-
|-
| 176
| 176
| u32
| u32
| Number of samples in current buffer
| Number of samples in embedded buffer
|-
|-
| 180
| 180
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|-
|-
| 182
| 182
| u16
| AdpcmData
| ADPCM predictor/scale
| ADPCM data associated with embedded buffer
|-
| 184
| s16
| ADPCM y[n-1]
|-
| 186
| s16
| ADPCM y[n-2]
|-
|-
| 188
| 188
| u16
| u16
| bit[0]: ADPCM updated?; bit[1]: Is looping?
| bit[0]: ADPCM updated?; bit[1]: Is looping?r
|-
|-
| 190
| 190
| u16
| u16
| Buffer Id of this current buffer
| Buffer Id of embedded buffer
|}
|}


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|-
|-
| 8
| 8
| u16
| AdpcmData
| 4 bits: ADPCM Predictor, 4 bits: ADPCM Scale
| ADPCM data
|-
| 10
| s16
| ADPCM y[n-1]
|-
| 11
| s16
| ADPCM y[n-2]
|-
|-
| 14
| 14
| u8
| u8
| ADPCM dirty?
| ADPCM data dirty?
|-
|-
| 15
| 15
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| -
| -
|}
|}
=== Adpcm Data ===
{| class="wikitable"
|-
| 0
| u8
| ADPCM predictor/scale
|-
| 1
| u8
| -
|-
| 2
| s16
| ADPCM y[n-1]
|-
| 4
| s16
| ADPCM y[n-2]
|}


=== Simple Filter ===
=== Simple Filter ===
Retrieved from "https://www.3dbrew.org/wiki/DSP_Memory_Region"