WebGPURenderer: Move TexelCopyTextureInfo to WebGPUTextureUtils.

The wrapper class for `GPUTexelCopyTextureInfo` belongs with the other
texture utilities. Export it from `WebGPUTextureUtils.js` and import it
into `WebGPUBackend.js`. No behavior change.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: RenaudRohlinger

src/renderers/webgpu/WebGPUBackend.js

@@ -12,7 +12,7 @@ import WebGPUAttributeUtils from './utils/WebGPUAttributeUtils.js';
 import WebGPUBindingUtils from './utils/WebGPUBindingUtils.js';
 import WebGPUCapabilities from './utils/WebGPUCapabilities.js';
 import WebGPUPipelineUtils from './utils/WebGPUPipelineUtils.js';
-import WebGPUTextureUtils from './utils/WebGPUTextureUtils.js';
+import WebGPUTextureUtils, { TexelCopyTextureInfo } from './utils/WebGPUTextureUtils.js';
 
 import { WebGPUCoordinateSystem, TimestampQuery, REVISION, HalfFloatType, Compatibility } from '../../constants.js';
 import WebGPUTimestampQueryPool from './utils/WebGPUTimestampQueryPool.js';
@@ -25,51 +25,6 @@ const _clearValue = { r: 0, g: 0, b: 0, a: 1 };
 
 const _submitArray = [ null ];
 
-/**
- * Reusable wrapper around `GPUTexelCopyTextureInfo`. Mutates in place to avoid
- * per-frame GC pressure while keeping call sites readable via chainable setters.
- */
-class TexelCopyTextureInfo {
-
-	constructor() {
-
-		this.texture = null;
-		this.mipLevel = 0;
-		this.origin = { x: 0, y: 0, z: 0 };
-
-	}
-
-	setTexture( texture ) {
-
-		this.texture = texture;
-		return this;
-
-	}
-
-	setMipLevel( mipLevel ) {
-
-		this.mipLevel = mipLevel;
-		return this;
-
-	}
-
-	setOrigin( x, y, z ) {
-
-		this.origin.x = x;
-		this.origin.y = y;
-		this.origin.z = z;
-		return this;
-
-	}
-
-	reset() {
-
-		this.texture = null;
-
-	}
-
-}
-
 const _copySrc = new TexelCopyTextureInfo();
 const _copyDst = new TexelCopyTextureInfo();
 const _copySize = [ 0, 0 ];

src/renderers/webgpu/utils/WebGPUTextureUtils.js

@@ -35,6 +35,51 @@ const _compareToWebGPU = {
 
 const _flipMap = [ 0, 1, 3, 2, 4, 5 ];
 
+/**
+ * Reusable wrapper around `GPUTexelCopyTextureInfo`. Mutates in place to avoid
+ * per-frame GC pressure while keeping call sites readable via chainable setters.
+ */
+class TexelCopyTextureInfo {
+
+	constructor() {
+
+		this.texture = null;
+		this.mipLevel = 0;
+		this.origin = { x: 0, y: 0, z: 0 };
+
+	}
+
+	setTexture( texture ) {
+
+		this.texture = texture;
+		return this;
+
+	}
+
+	setMipLevel( mipLevel ) {
+
+		this.mipLevel = mipLevel;
+		return this;
+
+	}
+
+	setOrigin( x, y, z ) {
+
+		this.origin.x = x;
+		this.origin.y = y;
+		this.origin.z = z;
+		return this;
+
+	}
+
+	reset() {
+
+		this.texture = null;
+
+	}
+
+}
+
 /**
  * A WebGPU backend utility module for managing textures.
  *
@@ -1670,4 +1715,5 @@ export function getFormat( texture, device ) {
 
 }
 
+export { TexelCopyTextureInfo };
 export default WebGPUTextureUtils;