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A WebGPU retro game engine for TypeScript, inspired by RetroBlit. Build pixel-perfect 2D games with a clean, fantasy-console-style API.
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest';
import { createMockGPUDevice, installMockNavigatorGPU, uninstallMockNavigatorGPU } from '../../../__test__/webgpu-mock';import { Vector2i } from '../../../utils/Vector2i';import { Bloom } from './Bloom';
const FORMAT: GPUTextureFormat = 'bgra8unorm';const SIZE = new Vector2i(1280, 960);
beforeAll(() => { installMockNavigatorGPU();});
afterAll(() => { uninstallMockNavigatorGPU();});
describe('Bloom', () => { it("declares tier='display'", () => { expect(new Bloom().tier).toBe('display'); });
it('init allocates a 16-byte uniform buffer', () => { const device = createMockGPUDevice(); const createBuffer = vi.spyOn(device, 'createBuffer'); const fx = new Bloom();
fx.init(device, FORMAT, SIZE);
expect(createBuffer.mock.calls[0]?.[0]?.size).toBe(16); });
it('updateUniforms writes resolution, spread, glow', () => { const device = createMockGPUDevice(); const writeBuffer = vi.spyOn(device.queue, 'writeBuffer'); const fx = new Bloom(); fx.spread = 4; fx.glow = 0.22;
fx.init(device, FORMAT, SIZE); fx.updateUniforms(16, new Vector2i(1024, 768));
expect(writeBuffer).toHaveBeenCalledTimes(1); const buf = writeBuffer.mock.calls[0]?.[2] as Float32Array; expect(buf[0]).toBe(1024); expect(buf[1]).toBe(768); expect(buf[2]).toBeCloseTo(4); expect(buf[3]).toBeCloseTo(0.22); });});