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bless wasm polygon rasterizer for production

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This commit is contained in:
Stewart Allen 2020-05-02 11:08:30 -04:00
commit 32dca7586c
4 changed files with 96 additions and 45 deletions
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27
js/kiri-driver-sla.js
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@ -48,9 +48,9 @@ let gs_kiri_sla = exports;
work_total,
work_remain;
if (!self.OffscreenCanvas) {
return ondone("browser lacks support for OffscreenCanvas",true);
}
// if (!self.OffscreenCanvas) {
// return ondone("browser lacks support for OffscreenCanvas",true);
// }
// calculate % complete and call onupdate()
function doupdate(work, msg) {
@ -609,8 +609,8 @@ let gs_kiri_sla = exports;
layermax = Math.max(widget.slices.length);
});
let render = renderLayer;
// let render = renderLayerWasm;
// let render = renderLayer;
let render = renderLayerWasm;
// generate layer 8-bit bitaps using canvas
for (let index=0; index < layermax; index++) {
@ -1296,10 +1296,12 @@ let gs_kiri_sla = exports;
function scaleMovePoly(poly) {
let points = poly.points;
let bounds = poly.bounds = BASE.newBounds();
for (let i=0, il=points.length; i<il; i++) {
let p = points[i];
p.y = height - (p.y * scaleY + height2);
p.x = p.x * scaleX + width2;
bounds.update(p);
}
if (poly.inner) {
for (let i=0, ia=poly.inner, il=poly.inner.length; i<il; i++) {
@ -1313,7 +1315,12 @@ let gs_kiri_sla = exports;
let inner = poly.inner;
writer.writeU16(inner ? inner.length : 0, true);
let points = poly.points;
let bounds = poly.bounds;
writer.writeU16(points.length, true);
writer.writeU16(bounds.minx, true);
writer.writeU16(bounds.maxx, true);
writer.writeU16(bounds.miny, true);
writer.writeU16(bounds.maxy, true);
for (let j=0, jl=points.length; j<jl; j++) {
let point = points[j];
writer.writeF32(point.x, true);
@ -1321,7 +1328,7 @@ let gs_kiri_sla = exports;
}
if (inner && inner.length) {
for (let i=0, il=inner.length; i<il; i++) {
writePoly(inner[i]);
writePoly(writer, inner[i]);
}
}
// write total struct length at struct head
@ -1355,14 +1362,6 @@ let gs_kiri_sla = exports;
let out = wasm.render(0, imagelen, 0);
let data = wasm.heap.slice(0, imagelen);
// console.log({
// pos: writer.pos,
// arr: array.length,
// mem: wasm.memory.buffer.slice(imagelen,writer.pos),
// out,
// data: data.filter(v => v !== 0)
// });
return { data: data, end: count === 0 };
}