diff --git a/.eslintrc.cjs b/.eslintrc.cjs
index f0827e38c7..d188569c44 100644
--- a/.eslintrc.cjs
+++ b/.eslintrc.cjs
@@ -29,7 +29,8 @@ module.exports = getESLintConfig({
       'default-case': ['warn'],
       'no-eq-null': ['warn'],
       eqeqeq: ['warn'],
-      radix: 0
+      radix: 0,
+      'spaced-comment': ["error", "always", { "exceptions": ["/ <"] }]
       // 'accessor-pairs': ['error', {getWithoutSet: false, setWithoutGet: false}]
     },
 
diff --git a/examples/api/cubemap/app.ts b/examples/api/cubemap/app.ts
index 105dadf5c4..5f40361328 100644
--- a/examples/api/cubemap/app.ts
+++ b/examples/api/cubemap/app.ts
@@ -1,6 +1,5 @@
 import {Device, loadImage, glsl} from '@luma.gl/core';
 import {AnimationLoopTemplate, AnimationProps, CubeGeometry, Model, ModelProps} from '@luma.gl/engine';
-import {GL} from '@luma.gl/constants';
 import {Matrix4, radians} from '@math.gl/core';
 
 const INFO_HTML = `
@@ -102,18 +101,19 @@ export default class AppAnimationLoopTemplate extends AnimationLoopTemplate {
     const cubemap = device.createTexture({
       dimension: 'cube',
       mipmaps: true,
+      // @ts-ignore
       data: {
-        [GL.TEXTURE_CUBE_MAP_POSITIVE_X]: loadImage('sky-posx.png'),
-        [GL.TEXTURE_CUBE_MAP_NEGATIVE_X]: loadImage('sky-negx.png'),
-        [GL.TEXTURE_CUBE_MAP_POSITIVE_Y]: loadImage('sky-posy.png'),
-        [GL.TEXTURE_CUBE_MAP_NEGATIVE_Y]: loadImage('sky-negy.png'),
-        [GL.TEXTURE_CUBE_MAP_POSITIVE_Z]: loadImage('sky-posz.png'),
-        [GL.TEXTURE_CUBE_MAP_NEGATIVE_Z]: loadImage('sky-negz.png')
+        '+X': loadImage('sky-posx.png'),
+        '-X': loadImage('sky-negx.png'),
+        '+Y': loadImage('sky-posy.png'),
+        '-Y': loadImage('sky-negy.png'),
+        '+Z': loadImage('sky-posz.png'),
+        '-Z': loadImage('sky-negz.png')
       }
     });
 
     const texture = device.createTexture({
-      data: 'vis-logo.png',
+      data: loadImage('vis-logo.png'),
       mipmaps: true,
       sampler: {
         magFilter: 'linear',
diff --git a/examples/tutorials/hello-cube/app.ts b/examples/tutorials/hello-cube/app.ts
index bd9c5004e6..2ff7a25b72 100644
--- a/examples/tutorials/hello-cube/app.ts
+++ b/examples/tutorials/hello-cube/app.ts
@@ -1,5 +1,5 @@
 // luma.gl, MIT license
-import {glsl, UniformStore, NumberArray, ShaderUniformType} from '@luma.gl/core';
+import {glsl, UniformStore, NumberArray, ShaderUniformType, loadImage} from '@luma.gl/core';
 import {AnimationLoopTemplate, AnimationProps, Model, CubeGeometry} from '@luma.gl/engine';
 import {Matrix4} from '@math.gl/core';
 
@@ -70,7 +70,7 @@ export default class AppAnimationLoopTemplate extends AnimationLoopTemplate {
     super();
 
     const texture = device.createTexture({
-      data: 'vis-logo.png',
+      data: loadImage('vis-logo.png'),
       mipmaps: true,
       sampler: device.createSampler({
         minFilter: 'linear',
diff --git a/examples/tutorials/lighting/app.ts b/examples/tutorials/lighting/app.ts
index 8a423d6b3c..c077f9b53d 100644
--- a/examples/tutorials/lighting/app.ts
+++ b/examples/tutorials/lighting/app.ts
@@ -1,4 +1,4 @@
-import {glsl, NumberArray} from '@luma.gl/core';
+import {glsl, NumberArray, loadImage} from '@luma.gl/core';
 import {AnimationLoopTemplate, AnimationProps, Model, CubeGeometry, _ShaderInputs} from '@luma.gl/engine';
 import {phongMaterial, lighting, ShaderModule} from '@luma.gl/shadertools';
 import {Matrix4} from '@math.gl/core';
@@ -75,7 +75,6 @@ const app: ShaderModule<AppUniforms, AppUniforms> = {
   }
 };
 
-
 // APPLICATION
 
 const eyePosition = [0, 0, 5];
@@ -112,7 +111,7 @@ export default class AppAnimationLoopTemplate extends AnimationLoopTemplate {
       }
     });
 
-    const texture = device.createTexture({data: 'vis-logo.png'});
+    const texture = device.createTexture({data: loadImage('vis-logo.png')});
 
     this.model = new Model(device, {
       vs,
diff --git a/modules/constants/src/index.ts b/modules/constants/src/index.ts
index 431c6bb5ef..fd4d6c6a79 100644
--- a/modules/constants/src/index.ts
+++ b/modules/constants/src/index.ts
@@ -7,6 +7,8 @@ export {GL} from './webgl-constants';
 
 // WebGL types
 export type {
+  GLTextureTarget,
+  GLTextureCubeMapTarget,
   GLPrimitiveTopology,
   GLPrimitive,
   GLDataType,
diff --git a/modules/constants/src/webgl-types.ts b/modules/constants/src/webgl-types.ts
index 36858dd583..8035a63e21 100644
--- a/modules/constants/src/webgl-types.ts
+++ b/modules/constants/src/webgl-types.ts
@@ -11,6 +11,7 @@ export type NumberArray = number[] | TypedArray;
 export type NumericArray = TypedArray | number[];
 
 /** TypeScript type covering all typed arrays */
+
 export type TypedArray =
   | Int8Array
   | Uint8Array
@@ -27,6 +28,22 @@ export type TypedArray =
 /** We don't know the type of Framebuffer at this stage */
 type Framebuffer = unknown;
 
+/** All possible texture targets */
+export type GLTextureTarget =
+  | GL.TEXTURE_2D
+  | GL.TEXTURE_CUBE_MAP
+  | GL.TEXTURE_2D_ARRAY
+  | GL.TEXTURE_3D;
+
+/** All possible cube face targets for textImage2D */
+export type GLTextureCubeMapTarget =
+  | GL.TEXTURE_CUBE_MAP_POSITIVE_X
+  | GL.TEXTURE_CUBE_MAP_NEGATIVE_X
+  | GL.TEXTURE_CUBE_MAP_POSITIVE_Y
+  | GL.TEXTURE_CUBE_MAP_NEGATIVE_Y
+  | GL.TEXTURE_CUBE_MAP_POSITIVE_Z
+  | GL.TEXTURE_CUBE_MAP_NEGATIVE_Z;
+
 /** Rendering primitives. Constants passed to drawElements() or drawArrays() to specify what kind of primitive to render. */
 export type GLPrimitiveTopology =
   | GL.POINTS
@@ -50,9 +67,9 @@ export type GLDataType =
   | GL.SHORT
   | GL.INT;
 
-/** Pixel Type */
+/** Pixel Data Type */
 export type GLPixelType =
-  | GL.UNSIGNED_BYTE
+  | GLDataType
   | GL.UNSIGNED_SHORT_5_6_5
   | GL.UNSIGNED_SHORT_4_4_4_4
   | GL.UNSIGNED_SHORT_5_5_5_1;
diff --git a/modules/core-tests/test/adapter/device.spec.ts b/modules/core-tests/test/adapter/device.spec.ts
index 9ee9748de9..3954b053ed 100644
--- a/modules/core-tests/test/adapter/device.spec.ts
+++ b/modules/core-tests/test/adapter/device.spec.ts
@@ -1,6 +1,6 @@
 // luma.gl, MIT license
 import test from 'tape-promise/tape';
-import {getWebGLTestDevices} from '@luma.gl/test-utils';
+import {getWebGLTestDevices, getTestDevices} from '@luma.gl/test-utils';
 
 // import {luma} from '@luma.gl/core';
 
@@ -13,6 +13,16 @@ test('WebGLDevice#info', (t) => {
   t.end();
 });
 
+// Minimal test, extensive test in texture-formats.spec
+test('WebGLDevice#isTextureFormatCompressed', async (t) => {
+  for (const device of await getTestDevices()) {
+    // Just sanity check two types
+    t.equal(device.isTextureFormatCompressed('rgba8unorm'), false);
+    t.equal(device.isTextureFormatCompressed('bc3-rgba-unorm'), true)
+  }
+  t.end();
+});
+
 test('WebGLDevice#lost (Promise)', async (t) => {
   // const device = await luma.createDevice({webgl2: false});
 
diff --git a/modules/core-tests/test/adapter/resources/texture.spec.ts b/modules/core-tests/test/adapter/resources/texture.spec.ts
index 34b421ff3d..bd7a7ea08d 100644
--- a/modules/core-tests/test/adapter/resources/texture.spec.ts
+++ b/modules/core-tests/test/adapter/resources/texture.spec.ts
@@ -132,18 +132,24 @@ function testFormatDeduction(t, device: Device) {
   }
 }
 
-test.skip('WebGL#Texture format deduction', t => {
-  testFormatDeduction(t, webglDevice);
+test.skip('WebGL#Texture format deduction', async (t) => {
+  for (const device of await getTestDevices()) {
+    testFormatDeduction(t, device);
+  }
   t.end();
 });
 
-test.skip('WebGL#Texture format creation', t => {
-  testFormatCreation(t, webglDevice);
+test.skip('WebGL#Texture format creation', async (t) => {
+  for (const device of await getTestDevices()) {
+    testFormatCreation(t, device);
+  }
   t.end();
 });
 
-test.skip('WebGL#Texture format creation with data', t => {
-  testFormatCreation(t, webglDevice, true);
+test.skip('WebGL#Texture format creation with data', async (t) => {
+  for (const device of await getTestDevices()) {
+    testFormatCreation(t, device, true);
+  }
   t.end();
 });
 
diff --git a/modules/core-tests/test/adapter/texture-formats.spec.ts b/modules/core-tests/test/adapter/texture-formats.spec.ts
new file mode 100644
index 0000000000..069e7387ca
--- /dev/null
+++ b/modules/core-tests/test/adapter/texture-formats.spec.ts
@@ -0,0 +1,13 @@
+import test from 'tape-promise/tape';
+import {getTestDevices} from '@luma.gl/test-utils';
+
+// import {luma} from '@luma.gl/core';
+
+// TODO - add full reference table, more exhaustive test
+test('WebGLDevice#isTextureFormatCompressed', async (t) => {
+  for (const device of await getTestDevices()) {
+    t.equal(device.isTextureFormatCompressed('rgba8unorm'), false);
+    t.equal(device.isTextureFormatCompressed('bc3-rgba-unorm'), true)
+  }
+  t.end();
+});
diff --git a/modules/core-tests/test/index.ts b/modules/core-tests/test/index.ts
index b499a22648..0d92ee4010 100644
--- a/modules/core-tests/test/index.ts
+++ b/modules/core-tests/test/index.ts
@@ -17,6 +17,9 @@ import './adapter/device-helpers/set-device-parameters.spec';
 // import './adapter/webgl-canvas-context.spec';
 
 // Resources
+import './adapter/texture-formats.spec';
+
+// Resources - TODO these tests only depend on Device and could move to API...
 import './adapter/resources/buffer.spec';
 import './adapter/resources/command-buffer.spec';
 import './adapter/resources/framebuffer.spec';
diff --git a/modules/core/src/adapter/device.ts b/modules/core/src/adapter/device.ts
index fe5711229c..8b2e7757c4 100644
--- a/modules/core/src/adapter/device.ts
+++ b/modules/core/src/adapter/device.ts
@@ -20,6 +20,8 @@ import type {CommandEncoder, CommandEncoderProps} from './resources/command-enco
 import type {VertexArray, VertexArrayProps} from './resources/vertex-array';
 import type {TransformFeedback, TransformFeedbackProps} from './resources/transform-feedback';
 
+import {isTextureFormatCompressed} from './type-utils/decode-texture-format';
+
 /**
  * Identifies the GPU vendor and driver.
  * @note Chrome WebGPU does not provide much information, though more can be enabled with
@@ -105,7 +107,7 @@ export abstract class DeviceLimits {
   abstract maxComputeWorkgroupSizeZ: number;
   /** max ComputeWorkgroupsPerDimension */
   abstract maxComputeWorkgroupsPerDimension: number;
-};
+}
 
 /** Set-like class for features (lets apps check for WebGL / WebGPU extensions) */
 export class DeviceFeatures {
@@ -130,7 +132,6 @@ export type DeviceFeature =
   | WebGLDeviceFeature
   | WebGLCompressedTextureFeatures;
 
-
 export type WebGPUDeviceFeature =
   | 'depth-clip-control'
   | 'indirect-first-instance'
@@ -144,8 +145,8 @@ export type WebGPUDeviceFeature =
   | 'texture-compression-bc'
   | 'texture-compression-etc2'
   | 'texture-compression-astc';
-  // | 'depth-clamping' // removed from the WebGPU spec...
-  // | 'pipeline-statistics-query' // removed from the WebGPU spec...
+// | 'depth-clamping' // removed from the WebGPU spec...
+// | 'pipeline-statistics-query' // removed from the WebGPU spec...
 
 export type WebGLDeviceFeature =
   // webgl extension features
@@ -156,7 +157,7 @@ export type WebGLDeviceFeature =
 
   // GLSL extension features
   | 'shader-noperspective-interpolation-webgl' // Vertex outputs & fragment inputs can have a `noperspective` interpolation qualifier.
-  | 'shader-conservative-depth-webgl' // GLSL `gl_FragDepth` qualifiers `depth_unchanged` etc can enable early depth test 
+  | 'shader-conservative-depth-webgl' // GLSL `gl_FragDepth` qualifiers `depth_unchanged` etc can enable early depth test
   | 'shader-clip-cull-distance-webgl' // Makes gl_ClipDistance and gl_CullDistance available in shaders
 
   // texture rendering
@@ -202,8 +203,9 @@ export type DeviceProps = {
   // preserveDrawingBuffer?: boolean; // Default render target buffers will not be automatically cleared and will preserve their values until cleared or overwritten
   // failIfMajorPerformanceCaveat?: boolean; // Do not create if the system performance is low.
 
+  onError?: (error: Error) => unknown;
   /** Instrument context (at the expense of performance) */
-  debug?: boolean; 
+  debug?: boolean;
   /** Initialize the SpectorJS WebGL debugger */
   spector?: boolean;
 
@@ -239,7 +241,10 @@ export abstract class Device {
     // preserveDrawingBuffer: undefined,
     // failIfMajorPerformanceCaveat: undefined
 
-    gl: null
+    gl: null,
+
+    // Callbacks
+    onError: (error: Error) => log.error(error.message)
   };
 
   get [Symbol.toStringTag](): string {
@@ -286,6 +291,11 @@ export abstract class Device {
   /** Check if device supports rendering to a specific texture format */
   abstract isTextureFormatRenderable(format: TextureFormat): boolean;
 
+  /** Check if a specific texture format is GPU compressed */
+  isTextureFormatCompressed(format: TextureFormat): boolean {
+    return isTextureFormatCompressed(format);
+  }
+
   // Device loss
 
   /** `true` if device is already lost */
@@ -437,7 +447,14 @@ export abstract class Device {
     throw new Error('not implemented');
   }
 
-  // Implementation
+  // IMPLEMENTATION
+
+  // Error Handling
+
+  /** Report unhandled device errors */
+  onError(error: Error) {
+    this.props.onError(error);
+  }
 
   protected _getBufferProps(props: BufferProps | ArrayBuffer | ArrayBufferView): BufferProps {
     if (props instanceof ArrayBuffer || ArrayBuffer.isView(props)) {
diff --git a/modules/core/src/adapter/type-utils/decode-texture-format.ts b/modules/core/src/adapter/type-utils/decode-texture-format.ts
index 2f905a5443..4416d3850b 100644
--- a/modules/core/src/adapter/type-utils/decode-texture-format.ts
+++ b/modules/core/src/adapter/type-utils/decode-texture-format.ts
@@ -2,6 +2,12 @@ import {TextureFormat} from '../types/texture-formats';
 import {VertexType} from '../types/vertex-formats';
 import {decodeVertexType} from './decode-data-type';
 
+
+// prettier-ignore
+const COMPRESSED_TEXTURE_FORMAT_PREFIXES = [
+  'bc1', 'bc2', 'bc3', 'bc4', 'bc5', 'bc6', 'bc7', 'etc1', 'etc2', 'eac', 'atc', 'astc', 'pvrtc'
+];
+
 const REGEX = /^(rg?b?a?)([0-9]*)([a-z]*)(-srgb)?(-webgl|-unsized)?$/;
 
 export type DecodedTextureFormat = {
@@ -17,6 +23,13 @@ export type DecodedTextureFormat = {
   normalized: boolean;
 }
 
+/** 
+ * Returns true if a texture format is GPU compressed 
+ */
+export function isTextureFormatCompressed(textureFormat: TextureFormat): boolean {
+  return COMPRESSED_TEXTURE_FORMAT_PREFIXES.some(prefix => textureFormat.startsWith(prefix));
+}
+
 /**
  * Decodes a vertex format, returning type, components, byte length and flags (integer, signed, normalized)
  */
diff --git a/modules/core/src/utils/load-file.ts b/modules/core/src/utils/load-file.ts
index 183f41ea30..66eeac8ce1 100644
--- a/modules/core/src/utils/load-file.ts
+++ b/modules/core/src/utils/load-file.ts
@@ -49,7 +49,7 @@ export async function loadImage(
   url: string,
   opts?: {crossOrigin?: string}
 ): Promise<HTMLImageElement> {
-  return new Promise((resolve, reject) => {
+  return await new Promise((resolve, reject) => {
     try {
       const image = new Image();
       image.onload = () => resolve(image);
diff --git a/modules/webgpu/src/adapter/webgpu-canvas-context.ts b/modules/webgpu/src/adapter/webgpu-canvas-context.ts
index 3cb9fa7841..ab550516ea 100644
--- a/modules/webgpu/src/adapter/webgpu-canvas-context.ts
+++ b/modules/webgpu/src/adapter/webgpu-canvas-context.ts
@@ -15,8 +15,7 @@ export class WebGPUCanvasContext extends CanvasContext {
   readonly device: WebGPUDevice;
   readonly gpuCanvasContext: GPUCanvasContext;
   /** Format of returned textures: "bgra8unorm", "rgba8unorm", "rgba16float". */
-  // @ts-ignore - TODO - fix this
-  readonly format: TextureFormat = navigator.gpu.getPreferredCanvasFormat();
+  readonly format: TextureFormat = navigator.gpu.getPreferredCanvasFormat() as TextureFormat;
   /** Default stencil format for depth textures */
   depthStencilFormat: TextureFormat = 'depth24plus';