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memory optimization: defer wasm load, reduce point/poly default fields

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This commit is contained in:
Stewart Allen 2021-06-17 23:31:05 -04:00
commit 069a599ead
5 changed files with 32 additions and 32 deletions
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21
src/mode/sla/driver.js
View file

@ -22,6 +22,27 @@
// runs in worker. would usually be in src/mode/sla/prepare.js
function prepare(widgets, settings, update) {
self.worker.print = KIRI.newPrint(settings, widgets);
if (!SLA.wasm) {
fetch('/wasm/kiri-sla.wasm')
.then(response => response.arrayBuffer())
.then(bytes => WebAssembly.instantiate(bytes, {
env: {
reportf: (a,b) => { console.log('[f]',a,b) },
reporti: (a,b) => { console.log('[i]',a,b) }
}
}))
.then(results => {
let {module, instance} = results;
let {exports} = instance;
let heap = new Uint8Array(exports.memory.buffer);
SLA.wasm = {
heap,
memory: exports.memory,
render: exports.render,
rle_encode: exports.rle_encode
};
});
}
update(1);
}

23
src/mode/sla/export.js
View file

@ -475,28 +475,6 @@
// rle_encode: exports.rle_encode
// };
// } else
// load renderer code in worker context only
let wasm;
fetch('/wasm/kiri-sla.wasm')
.then(response => response.arrayBuffer())
.then(bytes => WebAssembly.instantiate(bytes, {
env: {
reportf: (a,b) => { console.log('[f]',a,b) },
reporti: (a,b) => { console.log('[i]',a,b) }
}
}))
.then(results => {
let {module, instance} = results;
let {exports} = instance;
let heap = new Uint8Array(exports.memory.buffer);
wasm = {
heap,
memory: exports.memory,
render: exports.render,
rle_encode: exports.rle_encode
};
});
// new WebAssembly rasterizer
function renderLayerWasm(params) {
@ -561,6 +539,7 @@
}
});
let wasm = SLA.wasm;
let imagelen = width * height;
let writer = new self.DataWriter(new DataView(wasm.memory.buffer), imagelen);
writer.writeU16(width, true);