uxn-utils/gui/sixels/sixels.tal

91 lines
1.9 KiB
Tal

|00 @System &vector $2 &expansion $2 &wst $1 &rst $1 &metadata $2 &r $2 &g $2 &b $2 &debug $1 &state $1
|10 @Console &vector $2 &read $1 &pad $4 &type $1 &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
|a0 @File &vector $2 &success $2 &stat $2 &delete $1 &append $1 &name $2 &length $2 &read $2 &write $2
|000
@src $40
|100
@on-reset ( -> )
#f0ef .System/r DEO2
#f0e6 .System/g DEO2
#f0e2 .System/b DEO2
#00a0 .Screen/width DEO2
#00b0 .Screen/height DEO2
( | begin )
#0010 DUP2 .Screen/x DEO2
.Screen/y DEO2
;on-console .Console/vector DEO2
BRK
@on-console ( -> )
.Console/read DEI DUP #20 GTH ?{
POP ;src .File/name DEO2
#8000 .File/length DEO2
;img .File/read DEO2
;img <draw-sixels>
;sample <draw-sixels>
BRK }
[ LIT &ptr -src ] INCk ,&ptr STR
STZ
BRK
@<draw-sixels> ( data* -- )
[ LIT2 02 -Screen/auto ] DEO
.Screen/x DEI2 ,&anchor STR2
&>w ( -- )
LDAk [ LIT "$ ] EQU ?&op-over
LDAk [ LIT "- ] EQU ?&op-line
LDAk [ LIT "! ] EQU ?&op-rle
LDAk <draw-sixels>/op-col
& INC2 LDAk ?&>w
POP2 JMP2r
&op-line ( -- )
.Screen/y DEI2k #0006 ADD2 ROT DEO2
&op-over ( -- )
[ LIT2 &anchor $2 ] .Screen/x DEO2
!&
@<draw-sixels>/op-rle ( addr* -- addr* )
INC2 sdec OVR2 LDA ,&trle STR
#0000
&>lrle ( -- )
[ LIT &trle $1 ] <draw-sixels>/op-col
INC2 GTH2k ?&>lrle
POP2 POP2 !<draw-sixels>/
@<draw-sixels>/op-col ( char -- )
[ LIT "? ] SUB ,&t STR
#0600
&>l ( -- )
[ LIT &t $1 ] OVR SFT #01 AND .Screen/pixel DEO
INC GTHk ?&>l
POP2
( | advance )
.Screen/x DEI2k INC2 ROT DEO2
.Screen/y DEI2k #0006 SUB2 ROT DEO2
JMP2r
(
@|stdlib )
@sdec ( str* -- str* val* )
[ LIT2r 0000 ]
&>w ( -- )
( validate ) LDAk [ LIT "0 ] SUB #09 GTH ?{
( accumulate ) [ LIT2r 000a ] MUL2r
( combine ) LDAk [ LIT "0 ] SUB [ LITr 00 ] STH
ADD2r
( continue ) INC2 LDAk ?&>w }
STH2r JMP2r
(
@|memory )
@sample [ "???owYn||~ywo??-?IRJaVNn^NVbJRI $1 ]
@img