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Enhance error handling for graphics rendering and update external image loader registration

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Ross
2026-03-16 11:09:04 +00:00
parent 8dc4bb0aaa
commit adff7caffd
2 changed files with 65 additions and 43 deletions
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dicom-viewer/package.json
+1 -1
View File
@@ -5,7 +5,7 @@
"type": "module",
"scripts": {
"dev": "vite",
"build": "tsc && vite build && cp dist/index.js /home/ross/rad/rad/rad/static/dv3d/index.js",
"build": "tsc && vite build && cp dist/index.js /home/ross/penracourses/rad/rad/static/dv3d/index.js",
"lint": "eslint . --ext ts,tsx --report-unused-disable-directives --max-warnings 0",
"preview": "vite preview"
},
dicom-viewer/src/App.tsx
+64 -42
View File
@@ -442,8 +442,18 @@ function App({ container_id, imageStacks, autoCacheStack, annotationJson, viewer
const onError = (ev: ErrorEvent) => {
try {
const msg = ev && ev.message ? String(ev.message) : '';
if (msg.includes('releaseGraphicsResources') || msg.includes('openGLTexture')) {
console.error('Detected graphics resource error:', ev);
// Detect known rendering/WebGL-related errors and actor/colormap issues
if (
msg.includes('releaseGraphicsResources') ||
msg.includes('openGLTexture') ||
msg.includes('getDefaultActor') ||
msg.includes('setColormapGPU') ||
msg.includes("can't access property \"actor\"") ||
// generic rendering failure
msg.toLowerCase().includes('webgl') ||
msg.toLowerCase().includes('colormap')
) {
console.error('Detected graphics/rendering error:', ev);
setGraphicsErrorMessage(msg || null);
setGraphicsErrorVisible(true);
}
@@ -456,8 +466,16 @@ function App({ container_id, imageStacks, autoCacheStack, annotationJson, viewer
try {
const reason = (ev && (ev as any).reason) || '';
const text = typeof reason === 'string' ? reason : (reason && reason.message) ? reason.message : String(reason);
if (text.includes('releaseGraphicsResources') || text.includes('openGLTexture')) {
console.error('Detected graphics resource rejection:', ev);
if (
text.includes('releaseGraphicsResources') ||
text.includes('openGLTexture') ||
text.includes('getDefaultActor') ||
text.includes('setColormapGPU') ||
text.includes("can't access property \"actor\"") ||
text.toLowerCase().includes('webgl') ||
text.toLowerCase().includes('colormap')
) {
console.error('Detected graphics/rendering rejection:', ev);
setGraphicsErrorMessage(text || null);
setGraphicsErrorVisible(true);
}
@@ -1402,47 +1420,51 @@ function App({ container_id, imageStacks, autoCacheStack, annotationJson, viewer
dicomImageLoaderInit();
// Register client-side image loader for external images (JPEG/PNG/blob/data)
try {
imageLoader.registerImageLoader('external', async (imageId: string) => {
// imageId expected as 'external:<url>'
const url = imageId.replace(/^external:/, '');
const img = new Image();
img.crossOrigin = 'anonymous';
img.src = url;
await new Promise((resolve, reject) => {
img.onload = () => resolve(true);
img.onerror = (e) => reject(e);
});
imageLoader.registerImageLoader('external', (imageId: string) => {
const promise = (async () => {
// imageId expected as 'external:<url>'
const url = imageId.replace(/^external:/, '');
const img = new Image();
img.crossOrigin = 'anonymous';
img.src = url;
await new Promise((resolve, reject) => {
img.onload = () => resolve(true);
img.onerror = (e) => reject(e);
});
const w = img.naturalWidth || img.width;
const h = img.naturalHeight || img.height;
const canvas = document.createElement('canvas');
canvas.width = w;
canvas.height = h;
const ctx = canvas.getContext('2d');
if (!ctx) throw new Error('Unable to create canvas context');
ctx.drawImage(img, 0, 0, w, h);
const im = ctx.getImageData(0, 0, w, h);
const w = img.naturalWidth || img.width;
const h = img.naturalHeight || img.height;
const canvas = document.createElement('canvas');
canvas.width = w;
canvas.height = h;
const ctx = canvas.getContext('2d');
if (!ctx) throw new Error('Unable to create canvas context');
ctx.drawImage(img, 0, 0, w, h);
const im = ctx.getImageData(0, 0, w, h);
const image = {
imageId,
minPixelValue: 0,
maxPixelValue: 255,
slope: 1.0,
intercept: 0,
rows: h,
columns: w,
height: h,
width: w,
color: true,
rgba: true,
sizeInBytes: im.data.length,
getPixelData: () => im.data,
// Some Cornerstone APIs expect `getImageData` or `getCanvas` - provide canvas and ImageData
getImageData: () => im,
getCanvas: () => canvas,
} as any;
const image = {
imageId,
minPixelValue: 0,
maxPixelValue: 255,
slope: 1.0,
intercept: 0,
rows: h,
columns: w,
height: h,
width: w,
color: true,
rgba: true,
sizeInBytes: im.data.length,
getPixelData: () => im.data,
// Some Cornerstone APIs expect `getImageData` or `getCanvas` - provide canvas and ImageData
getImageData: () => im,
getCanvas: () => canvas,
} as any;
return image;
return image;
})();
return { promise };
});
} catch (e) {
console.warn('Failed to register external image loader', e);