diff options
| -rw-r--r-- | shell/primitives.mu | 257 |
1 files changed, 256 insertions, 1 deletions
diff --git a/shell/primitives.mu b/shell/primitives.mu index 1b446ea1..30c4864e 100644 --- a/shell/primitives.mu +++ b/shell/primitives.mu @@ -42,6 +42,7 @@ fn initialize-primitives _self: (addr global-table) { append-primitive self, "hline" append-primitive self, "vline" append-primitive self, "circle" + append-primitive self, "bezier" append-primitive self, "width" append-primitive self, "height" # for keyboards @@ -129,7 +130,7 @@ fn render-primitives screen: (addr screen), xmin: int, xmax: int, ymax: int { tmpx <- draw-text-rightward screen, "pixel graphics", tmpx, left-max, y, 7/fg=grey, 0xdc/bg=green-bg y <- increment var tmpx/eax: int <- copy xmin - tmpx <- draw-text-rightward screen, " circle line hline vline pixel", tmpx, left-max, y, 0x2a/fg=orange, 0xdc/bg=green-bg + tmpx <- draw-text-rightward screen, " circle bezier line hline vline pixel", tmpx, left-max, y, 0x2a/fg=orange, 0xdc/bg=green-bg y <- increment var tmpx/eax: int <- copy xmin tmpx <- draw-text-rightward screen, " width height", tmpx, left-max, y, 0x2a/fg=orange, 0xdc/bg=green-bg @@ -465,6 +466,13 @@ fn apply-primitive _f: (addr cell), args-ah: (addr handle cell), out: (addr hand return } { + var bezier?/eax: boolean <- string-equal? f-name, "bezier" + compare bezier?, 0/false + break-if-= + apply-bezier args-ah, out, trace + return + } + { var width?/eax: boolean <- string-equal? f-name, "width" compare width?, 0/false break-if-= @@ -2599,6 +2607,253 @@ fn apply-circle _args-ah: (addr handle cell), out: (addr handle cell), trace: (a # return nothing } +fn apply-bezier _args-ah: (addr handle cell), out: (addr handle cell), trace: (addr trace) { + trace-text trace, "eval", "apply 'bezier'" + var args-ah/eax: (addr handle cell) <- copy _args-ah + var _args/eax: (addr cell) <- lookup *args-ah + var args/esi: (addr cell) <- copy _args + { + var args-type/eax: (addr int) <- get args, type + compare *args-type, 0/pair + break-if-= + error trace, "args to 'bezier' are not a list" + return + } + var empty-args?/eax: boolean <- nil? args + compare empty-args?, 0/false + { + break-if-= + error trace, "'bezier' needs 8 args but got 0" + return + } + # screen = args->left + var first-ah/eax: (addr handle cell) <- get args, left + var first/eax: (addr cell) <- lookup *first-ah + { + var first-type/eax: (addr int) <- get first, type + compare *first-type, 5/screen + break-if-= + error trace, "first arg for 'bezier' is not a screen" + return + } + var screen-ah/eax: (addr handle screen) <- get first, screen-data + var _screen/eax: (addr screen) <- lookup *screen-ah + var screen/edi: (addr screen) <- copy _screen + # x0 = args->right->left->value + var rest-ah/eax: (addr handle cell) <- get args, right + var _rest/eax: (addr cell) <- lookup *rest-ah + var rest/esi: (addr cell) <- copy _rest + { + var rest-type/eax: (addr int) <- get rest, type + compare *rest-type, 0/pair + break-if-= + error trace, "'bezier' encountered non-pair" + return + } + { + var rest-nil?/eax: boolean <- nil? rest + compare rest-nil?, 0/false + break-if-= + error trace, "'bezier' needs 8 args but got 1" + return + } + var second-ah/eax: (addr handle cell) <- get rest, left + var second/eax: (addr cell) <- lookup *second-ah + { + var second-type/eax: (addr int) <- get second, type + compare *second-type, 1/number + break-if-= + error trace, "second arg for 'bezier' is not a number (screen x coordinate of start point)" + return + } + var second-value/eax: (addr float) <- get second, number-data + var x0/edx: int <- convert *second-value + # y0 = rest->right->left->value + var rest-ah/eax: (addr handle cell) <- get rest, right + var _rest/eax: (addr cell) <- lookup *rest-ah + rest <- copy _rest + { + var rest-type/eax: (addr int) <- get rest, type + compare *rest-type, 0/pair + break-if-= + error trace, "'bezier' encountered non-pair" + return + } + { + var rest-nil?/eax: boolean <- nil? rest + compare rest-nil?, 0/false + break-if-= + error trace, "'bezier' needs 8 args but got 2" + return + } + var third-ah/eax: (addr handle cell) <- get rest, left + var third/eax: (addr cell) <- lookup *third-ah + { + var third-type/eax: (addr int) <- get third, type + compare *third-type, 1/number + break-if-= + error trace, "third arg for 'bezier' is not a number (screen y coordinate of start point)" + return + } + var third-value/eax: (addr float) <- get third, number-data + var y0/ebx: int <- convert *third-value + # x1 = rest->right->left->value + var rest-ah/eax: (addr handle cell) <- get rest, right + var _rest/eax: (addr cell) <- lookup *rest-ah + var rest/esi: (addr cell) <- copy _rest + { + var rest-type/eax: (addr int) <- get rest, type + compare *rest-type, 0/pair + break-if-= + error trace, "'bezier' encountered non-pair" + return + } + { + var rest-nil?/eax: boolean <- nil? rest + compare rest-nil?, 0/false + break-if-= + error trace, "'bezier' needs 8 args but got 3" + return + } + var fourth-ah/eax: (addr handle cell) <- get rest, left + var fourth/eax: (addr cell) <- lookup *fourth-ah + { + var fourth-type/eax: (addr int) <- get fourth, type + compare *fourth-type, 1/number + break-if-= + error trace, "fourth arg for 'bezier' is not a number (screen x coordinate of control point)" + return + } + var fourth-value/eax: (addr float) <- get fourth, number-data + var tmp/eax: int <- convert *fourth-value + var x1: int + copy-to x1, tmp + # y1 = rest->right->left->value + var rest-ah/eax: (addr handle cell) <- get rest, right + var _rest/eax: (addr cell) <- lookup *rest-ah + rest <- copy _rest + { + var rest-type/eax: (addr int) <- get rest, type + compare *rest-type, 0/pair + break-if-= + error trace, "'bezier' encountered non-pair" + return + } + { + var rest-nil?/eax: boolean <- nil? rest + compare rest-nil?, 0/false + break-if-= + error trace, "'bezier' needs 8 args but got 4" + return + } + var fifth-ah/eax: (addr handle cell) <- get rest, left + var fifth/eax: (addr cell) <- lookup *fifth-ah + { + var fifth-type/eax: (addr int) <- get fifth, type + compare *fifth-type, 1/number + break-if-= + error trace, "fifth arg for 'bezier' is not a number (screen y coordinate of control point)" + return + } + var fifth-value/eax: (addr float) <- get fifth, number-data + var tmp/eax: int <- convert *fifth-value + var y1: int + copy-to y1, tmp + # x2 = rest->right->left->value + var rest-ah/eax: (addr handle cell) <- get rest, right + var _rest/eax: (addr cell) <- lookup *rest-ah + var rest/esi: (addr cell) <- copy _rest + { + var rest-type/eax: (addr int) <- get rest, type + compare *rest-type, 0/pair + break-if-= + error trace, "'bezier' encountered non-pair" + return + } + { + var rest-nil?/eax: boolean <- nil? rest + compare rest-nil?, 0/false + break-if-= + error trace, "'bezier' needs 8 args but got 3" + return + } + var sixth-ah/eax: (addr handle cell) <- get rest, left + var sixth/eax: (addr cell) <- lookup *sixth-ah + { + var sixth-type/eax: (addr int) <- get sixth, type + compare *sixth-type, 1/number + break-if-= + error trace, "sixth arg for 'bezier' is not a number (screen x coordinate of end point)" + return + } + var sixth-value/eax: (addr float) <- get sixth, number-data + var tmp/eax: int <- convert *sixth-value + var x2: int + copy-to x2, tmp + # y2 = rest->right->left->value + var rest-ah/eax: (addr handle cell) <- get rest, right + var _rest/eax: (addr cell) <- lookup *rest-ah + rest <- copy _rest + { + var rest-type/eax: (addr int) <- get rest, type + compare *rest-type, 0/pair + break-if-= + error trace, "'bezier' encountered non-pair" + return + } + { + var rest-nil?/eax: boolean <- nil? rest + compare rest-nil?, 0/false + break-if-= + error trace, "'bezier' needs 8 args but got 4" + return + } + var seventh-ah/eax: (addr handle cell) <- get rest, left + var seventh/eax: (addr cell) <- lookup *seventh-ah + { + var seventh-type/eax: (addr int) <- get seventh, type + compare *seventh-type, 1/number + break-if-= + error trace, "seventh arg for 'bezier' is not a number (screen y coordinate of end point)" + return + } + var seventh-value/eax: (addr float) <- get seventh, number-data + var tmp/eax: int <- convert *seventh-value + var y2: int + copy-to y2, tmp + # color = rest->right->left->value + var rest-ah/eax: (addr handle cell) <- get rest, right + var _rest/eax: (addr cell) <- lookup *rest-ah + rest <- copy _rest + { + var rest-type/eax: (addr int) <- get rest, type + compare *rest-type, 0/pair + break-if-= + error trace, "'bezier' encountered non-pair" + return + } + { + var rest-nil?/eax: boolean <- nil? rest + compare rest-nil?, 0/false + break-if-= + error trace, "'bezier' needs 8 args but got 5" + return + } + var eighth-ah/eax: (addr handle cell) <- get rest, left + var eighth/eax: (addr cell) <- lookup *eighth-ah + { + var eighth-type/eax: (addr int) <- get eighth, type + compare *eighth-type, 1/number + break-if-= + error trace, "eighth arg for 'bezier' is not an int (color; 0..0xff)" + return + } + var eighth-value/eax: (addr float) <- get eighth, number-data + var color/eax: int <- convert *eighth-value + draw-monotonic-bezier screen, x0, y0, x1, y1, x2, y2, color + # return nothing +} + fn apply-wait-for-key _args-ah: (addr handle cell), out: (addr handle cell), trace: (addr trace) { trace-text trace, "eval", "apply 'key'" var args-ah/eax: (addr handle cell) <- copy _args-ah |