Method freeTextureUnit

packages/melonjs/src/video/texture/cache.js:104–117

* @ignore * * Hot-path note: `getUnit` / `peekUnit` / `freeTextureUnit` are * called per-texture per-draw, so the `(source, repeat)` lookup is * inlined here rather than going through a helper that allocates a * `{source, repeat}` object on every call.

(texture)

	 * `{source, repeat}` object on every call.
	 */
	freeTextureUnit(texture) {
		const source = texture.sources.get(texture.activeAtlas);
		const repeat = normalizeRepeat(texture.repeat);
		const perRepeat = this.units.get(source);
		const unit = perRepeat?.get(repeat);
		// was a texture unit allocated ?
		if (typeof unit !== "undefined") {
			this.usedUnits.delete(unit);
			perRepeat.delete(repeat);
			if (perRepeat.size === 0) {
				this.units.delete(source);
			}
		}
	}

	/**
	 * @ignore