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separate render and update voices
This commit is contained in:
Peter Salomonsen 2023-03-23 21:57:59 +01:00 committed by Peter Salomonsen
parent 8d62af5c45
commit 57a4ce7d64
1 changed files with 25 additions and 4 deletions
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29
templates/wasm/player.wat
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@ -793,15 +793,19 @@
;; "Entry point" for the player
;;------------------------------------------------------------------------------
(func $render_128_samples (param)
(func $render_128_samples (param) (result i32)
(local $rendersamplecount i32)
(local $should_update_voices i32)
(i32.const 0)
(local.set $rendersamplecount)
(i32.const 0)
(local.set $should_update_voices)
{{- if .Output16Bit }} (local $channel i32) {{- end }}
(loop $sample_loop
(if (i32.eq (global.get $sample) (i32.const 0))
(then
(call $su_update_voices)
(i32.const 1)
(local.set $should_update_voices)
)
)
(global.set $COM (i32.const {{index .Labels "su_patch_code"}}))
@ -842,8 +846,10 @@
(local.set $rendersamplecount (i32.add (local.get $rendersamplecount) (i32.const 1)))
(br_if $sample_loop (i32.lt_s (local.get $rendersamplecount) (i32.const 128)))
)
(local.get $should_update_voices)
)
(export "render_128_samples" (func $render_128_samples))
(export "update_voices" (func $su_update_voices))
;; (start $render) ;; we run render automagically when the module is instantiated
@ -975,10 +981,25 @@
(i32.mul (i32.const 4096) (local.get $voice_no))
))
(memory.fill (local.get $di) (i32.const 0) (i32.const 4096))
(i32.store (local.get $di) (local.get $value))
(i32.store (local.get $di) (local.get $value))
)
(export "update_single_voice" (func $update_single_voice))
(func $set_current_pattern_value (param $voice_no i32) (param $value i32)
(local $si i32)
(local.set $si (global.get $pattern))
(local.set $si
(
i32.add (local.get $si)
(i32.mul (local.get $voice_no) (i32.const {{.SequenceLength}}))
)
)
(i32.load8_u offset={{index .Labels "su_tracks"}} (local.get $si))
(i32.mul (i32.const {{.PatternLength}}))
(i32.add (global.get $row))
(local.get $value)
(i32.store8 offset={{index .Labels "su_patterns"}})
)
(export "set_current_pattern_value" (func $set_current_pattern_value))
{{template "patch.wat" .}}
;; All data is collected into a byte buffer and emitted at once