Refactoring start

src/pipelines/diffusion/diffusion-pipeline.ts

@@ -1,3 +1,7 @@
+import {
+  createCachedFloat32BufferWrite,
+  writeFloat32BufferIfChanged,
+} from '../../utils/graphics/cached-buffer-write';
 import { setUpFullScreenQuad } from '../../utils/graphics/full-screen-quad';
 import { smartCompile } from '../../utils/graphics/smart-compile';
 import { CommonState } from '../common-state/common-state';
@@ -5,11 +9,15 @@ import shader from './diffuse.wgsl?raw';
 import { DiffusionSettings } from './diffusion-settings';
 
 export class DiffusionPipeline {
-  private static readonly UNIFORM_COUNT = 4;
+  private static readonly UNIFORM_COUNT = 5;
 
   private readonly bindGroupLayout: GPUBindGroupLayout;
   private readonly pipeline: GPURenderPipeline;
   private readonly uniforms: GPUBuffer;
+  private readonly uniformValues = new Float32Array(DiffusionPipeline.UNIFORM_COUNT);
+  private readonly uniformCache = createCachedFloat32BufferWrite(
+    DiffusionPipeline.UNIFORM_COUNT
+  );
   private readonly vertexBuffer: GPUBuffer;
 
   private bindGroup?: GPUBindGroup;
@@ -56,16 +64,18 @@ export class DiffusionPipeline {
     decayRateTrails,
     diffusionRateBrush,
     decayRateBrush,
+    anisotropy,
   }: DiffusionSettings) {
-    this.device.queue.writeBuffer(
+    this.uniformValues[0] = 1 / diffusionRateTrails;
+    this.uniformValues[1] = decayRateTrails / 1000;
+    this.uniformValues[2] = 1 / diffusionRateBrush;
+    this.uniformValues[3] = decayRateBrush / 1000;
+    this.uniformValues[4] = anisotropy;
+    writeFloat32BufferIfChanged(
+      this.device,
       this.uniforms,
-      0,
-      new Float32Array([
-        1 / diffusionRateTrails,
-        decayRateTrails / 1000,
-        1 / diffusionRateBrush,
-        decayRateBrush / 1000,
-      ])
+      this.uniformValues,
+      this.uniformCache
     );
   }