63 lines
1.5 KiB
TypeScript
63 lines
1.5 KiB
TypeScript
import { vec2 } from 'gl-matrix';
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import { CopyPipeline } from '../../pipelines/copy/copy-pipeline';
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export class ResizableTexture {
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private texture: GPUTexture;
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private textureView: GPUTextureView;
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private readonly copyPipeline: CopyPipeline;
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private size: vec2 | null = null;
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public constructor(
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private readonly device: GPUDevice,
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size: vec2
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) {
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this.copyPipeline = new CopyPipeline(this.device);
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this.resize(size);
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}
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public resize(size: vec2): void {
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if (this.size !== null && vec2.equals(this.size, size)) {
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return;
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}
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const newTexture = this.device.createTexture({
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format: 'rgba16float',
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size: {
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width: size[0],
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height: size[1],
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},
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usage:
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GPUTextureUsage.STORAGE_BINDING |
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GPUTextureUsage.TEXTURE_BINDING |
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GPUTextureUsage.RENDER_ATTACHMENT,
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});
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const newTextureView = newTexture.createView();
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if (this.textureView) {
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const commandEncoder = this.device.createCommandEncoder();
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this.copyPipeline.execute(
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commandEncoder,
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this.textureView,
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newTextureView,
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vec2.div(vec2.create(), this.size, size)
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);
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this.device.queue.submit([commandEncoder.finish()]);
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this.texture.destroy();
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}
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this.size = size;
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this.texture = newTexture;
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this.textureView = newTextureView;
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}
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public getTextureView(): GPUTextureView {
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return this.textureView;
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}
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public destroy(): void {
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this.texture.destroy();
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this.copyPipeline.destroy();
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}
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}
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