76 lines
2.7 KiB
JavaScript
76 lines
2.7 KiB
JavaScript
import { unsafeEvalSupported } from '../../../../utils/browser/unsafeEvalSupported.mjs';
|
|
import { Buffer } from '../buffer/Buffer.mjs';
|
|
import { BufferUsage } from '../buffer/const.mjs';
|
|
|
|
"use strict";
|
|
class UboSystem {
|
|
constructor(adaptor) {
|
|
/** Cache of uniform buffer layouts and sync functions, so we don't have to re-create them */
|
|
this._syncFunctionHash = /* @__PURE__ */ Object.create(null);
|
|
this._adaptor = adaptor;
|
|
this._systemCheck();
|
|
}
|
|
/**
|
|
* Overridable function by `pixi.js/unsafe-eval` to silence
|
|
* throwing an error if platform doesn't support unsafe-evals.
|
|
* @private
|
|
*/
|
|
_systemCheck() {
|
|
if (!unsafeEvalSupported()) {
|
|
throw new Error("Current environment does not allow unsafe-eval, please use pixi.js/unsafe-eval module to enable support.");
|
|
}
|
|
}
|
|
ensureUniformGroup(uniformGroup) {
|
|
const uniformData = this.getUniformGroupData(uniformGroup);
|
|
uniformGroup.buffer || (uniformGroup.buffer = new Buffer({
|
|
data: new Float32Array(uniformData.layout.size / 4),
|
|
usage: BufferUsage.UNIFORM | BufferUsage.COPY_DST
|
|
}));
|
|
}
|
|
getUniformGroupData(uniformGroup) {
|
|
return this._syncFunctionHash[uniformGroup._signature] || this._initUniformGroup(uniformGroup);
|
|
}
|
|
_initUniformGroup(uniformGroup) {
|
|
const uniformGroupSignature = uniformGroup._signature;
|
|
let uniformData = this._syncFunctionHash[uniformGroupSignature];
|
|
if (!uniformData) {
|
|
const elements = Object.keys(uniformGroup.uniformStructures).map((i) => uniformGroup.uniformStructures[i]);
|
|
const layout = this._adaptor.createUboElements(elements);
|
|
const syncFunction = this._generateUboSync(layout.uboElements);
|
|
uniformData = this._syncFunctionHash[uniformGroupSignature] = {
|
|
layout,
|
|
syncFunction
|
|
};
|
|
}
|
|
return this._syncFunctionHash[uniformGroupSignature];
|
|
}
|
|
_generateUboSync(uboElements) {
|
|
return this._adaptor.generateUboSync(uboElements);
|
|
}
|
|
syncUniformGroup(uniformGroup, data, offset) {
|
|
const uniformGroupData = this.getUniformGroupData(uniformGroup);
|
|
uniformGroup.buffer || (uniformGroup.buffer = new Buffer({
|
|
data: new Float32Array(uniformGroupData.layout.size / 4),
|
|
usage: BufferUsage.UNIFORM | BufferUsage.COPY_DST
|
|
}));
|
|
data || (data = uniformGroup.buffer.data);
|
|
offset || (offset = 0);
|
|
uniformGroupData.syncFunction(uniformGroup.uniforms, data, offset);
|
|
return true;
|
|
}
|
|
updateUniformGroup(uniformGroup) {
|
|
if (uniformGroup.isStatic && !uniformGroup._dirtyId)
|
|
return false;
|
|
uniformGroup._dirtyId = 0;
|
|
const synced = this.syncUniformGroup(uniformGroup);
|
|
uniformGroup.buffer.update();
|
|
return synced;
|
|
}
|
|
destroy() {
|
|
this._syncFunctionHash = null;
|
|
}
|
|
}
|
|
|
|
export { UboSystem };
|
|
//# sourceMappingURL=UboSystem.mjs.map
|