commit 3b128c04d4d4af721995ce43bc6c8da94d828c76
parent a5ca148862953f9e3494d2b0ec8c40c662e0fd57
Author: Devine Lu Linvega <aliceffekt@gmail.com>
Date: Mon, 27 Feb 2023 20:11:15 -0800
(piano.tal) Add softening
Diffstat:
1 file changed, 64 insertions(+), 12 deletions(-)
diff --git a/projects/software/piano.tal b/projects/software/piano.tal
@@ -5,12 +5,12 @@
|10 @Console &vector $2 &read $1 &pad $5 &write $1 &error $1
|20 @Screen &vector $2 &width $2 &height $2 &auto $1 &pad $1 &x $2 &y $2 &addr $2 &pixel $1 &sprite $1
|30 @Audio0 &vector $2 &position $2 &output $1 &pad $3 &adsr $2 &length $2 &addr $2 &volume $1 &pitch $1
+|40 @Audio1 &vector $2 &position $2 &output $1 &pad $3 &adsr $2 &length $2 &addr $2 &volume $1 &pitch $1
|80 @Controller &vector $2 &button $1 &key $1
|90 @Mouse &vector $2 &x $2 &y $2 &state $1 &pad $3 &modx $2 &mody $2
|0000
- @last-note $1
@octave $1
@center &x $2 &y $2
@adsr-view &x1 $2 &y1 $2 &x2 $2 &y2 $2
@@ -48,10 +48,13 @@
.wave-view/x1 LDZ2 #0100 ADD2 .wave-view/x2 STZ2
.wave-view/y1 LDZ2 #0040 ADD2 .wave-view/y2 STZ2
( setup synth )
- #041c .Audio0/adsr DEO2
- #dd .Audio0/volume DEO
+ #041c set-env
+ #dd set-vol
;sin-pcm .Audio0/addr DEO2
- #0100 .Audio0/length DEO2
+ ;sin-pcm .Audio1/addr DEO2
+ #0100
+ DUP2 .Audio0/length DEO2
+ .Audio1/length DEO2
( inital drawing )
draw-octave
draw-adsr
@@ -69,6 +72,14 @@ BRK
@on-frame ( -> )
+ .Mouse/state DEI ?&skip-sft
+ [ LIT2 00 &soft $1 ] EQUk ?&no-soft
+ soften
+ DUP #01 SUB ,&soft STR
+ &no-soft
+ POP2
+ &skip-sft
+
[ LIT &last $1 ] .Audio0/output DEI NEQk ?&changed
POP2 BRK
&changed
@@ -129,8 +140,6 @@ BRK
[ #24 ] NEQk NIP ?&sd #45 play &sd
[ #44 ] NEQk NIP ?&sl #46 play &sl
[ #84 ] NEQk NIP ?&sr #47 play &sr
- [ #40 ] NEQk NIP ?&l .Audio0/addr DEI2 #0010 SUB2 .Audio0/addr DEO2 &l
- [ #80 ] NEQk NIP ?&r .Audio0/addr DEI2 #0010 ADD2 .Audio0/addr DEO2 &r
POP
draw-octave
@@ -176,6 +185,7 @@ BRK
.Mouse/y DEI2 .wave-view/y1 LDZ2 SUB2 #20 SFT2 NIP
.Mouse/x DEI2 .wave-view/x1 LDZ2 SUB2 ;sin-pcm ADD2 STA
draw-wave
+ #10 ;on-frame/soft STA
BRK
@@ -220,8 +230,7 @@ BRK
.Audio0/adsr DEI2 AND2
( value ) #000f STHr OVR LTHk [ JMP SWP POP ] SUB
( shift ) #03 STHr SUB #60 SFT SFT2 ORA2
- .Audio0/adsr DEO2
- draw-adsr
+ set-env
BRK
@@ -232,8 +241,7 @@ BRK
.Audio0/volume DEI AND
( value ) #0f STHr OVR LTHk [ JMP SWP POP ] SUB
( shift ) #01 STHr SUB #60 SFT SFT ORA
- .Audio0/volume DEO
- draw-adsr
+ set-vol
BRK
@@ -243,16 +251,56 @@ BRK
@play ( pitch -- )
DUP #0c DIVk MUL SUB ;draw-octave/last STA
- .Audio0/pitch DEO
+ DUP .Audio0/pitch DEO
+ #0c SUB .Audio1/pitch DEO
JMP2r
@set-length ( length* -- )
- .Audio0/length DEO2
+ DUP2 .Audio0/length DEO2
+ .Audio1/length DEO2
!draw-wave
+@set-vol ( vol -- )
+
+ DUP .Audio0/volume DEO
+ .Audio1/volume DEO
+
+!draw-adsr
+
+@set-env ( adsr* -- )
+
+ DUP2 .Audio0/adsr DEO2
+ .Audio1/adsr DEO2
+
+!draw-adsr
+
+@soften ( -- )
+
+ #0100 #0000
+ &l
+ DUP2 ;sin-pcm ADD2 get-average SWP2 STA POP
+ INC2 GTH2k ?&l
+ POP2 POP2
+ draw-wave
+
+JMP2r
+
+@get-average ( addr* -- addr* average* )
+
+ [ LIT2r 0000 ]
+ DUP2 #0001 SUB2 DUP2 #0002 ADD2 SWP2
+ &l
+ LDAk LITr 00 STH ADD2r
+ INC2 GTH2k ?&l
+ POP2 POP2
+ LDAk #00 SWP DUP2 DUP2 STH2r
+ #01 SFT2 ADD2 ADD2 ADD2 #02 SFT2
+
+JMP2r
+
(
@|drawing )
@@ -481,6 +529,8 @@ JMP2r
007c 8202 7e82 827e 00fc 8282 fc82 82fc
007c 8280 8080 827c 00fc 8282 8282 82fc
007c 8280 f080 827c 007c 8280 f080 8080 ]
+
+( pad ) [ 8080 8080 ]
@sin-pcm [
8083 8689 8c8f 9295 989b 9ea1 a4a7 aaad
b0b3 b6b9 bbbe c1c3 c6c9 cbce d0d2 d5d7
@@ -499,3 +549,5 @@ JMP2r
2729 2b2e 3032 3537 3a3d 3f42 4547 4a4d
5053 5659 5c5f 6265 686b 6e71 7477 7a7d ]
&end
+( pad ) [ 8080 8080 ]
+
