feat: 增加till和bmp格式图片

package.json

@@ -55,7 +55,8 @@
     "react-redux": "^7.2.6",
     "recorder-core": "^1.3.25011100",
     "redux": "^4.1.2",
-    "remark-gfm": "^4.0.1"
+    "remark-gfm": "^4.0.1",
+    "utif": "^3.1.0"
   },
   "devDependencies": {
     "@svgr/webpack": "^5.5.0",

src/pages/flowEditor/components/nodeContentImage.tsx

@@ -3,6 +3,7 @@ import styles from '@/components/FlowEditor/node/style/baseOther.module.less';
 import { Handle, Position } from '@xyflow/react';
 import { Image } from '@arco-design/web-react';
 import { formatDataType } from '@/utils/common';
+import UTIF from 'utif';
 
 interface NodeContentData {
   parameters?: {
@@ -120,6 +121,44 @@ const getImageBlobType = (url: string, blobType: string) => {
   return blobType || 'application/octet-stream';
 };
 
+const isTiffImage = (url: string, blobType: string) => {
+  const imageType = getImageBlobType(url, blobType).toLowerCase();
+  const cleanUrl = url.split('?')[0].toLowerCase();
+
+  return (
+    imageType === 'image/tiff' ||
+    cleanUrl.endsWith('.tif') ||
+    cleanUrl.endsWith('.tiff')
+  );
+};
+
+const createTiffPreviewUrl = async (url: string, blob: Blob) => {
+  const buffer = await blob.arrayBuffer();
+  const ifds = UTIF.decode(buffer);
+  const firstImage = ifds[0];
+
+  if (!firstImage) {
+    throw new Error('empty tiff image');
+  }
+
+  UTIF.decodeImage(buffer, firstImage);
+  const rgba = UTIF.toRGBA8(firstImage);
+  const canvas = document.createElement('canvas');
+  canvas.width = firstImage.width;
+  canvas.height = firstImage.height;
+
+  const context = canvas.getContext('2d');
+  if (!context) {
+    throw new Error('canvas context unavailable');
+  }
+
+  const imageData = context.createImageData(firstImage.width, firstImage.height);
+  imageData.data.set(rgba);
+  context.putImageData(imageData, 0, 0);
+
+  return canvas.toDataURL('image/png');
+};
+
 const NodeContent = ({ data, imageUrl = '' }: { data: NodeContentData; imageUrl?: string }) => {
   const [previewUrl, setPreviewUrl] = useState('');
   const [imageLoadError, setImageLoadError] = useState(false);
@@ -152,6 +191,14 @@ const NodeContent = ({ data, imageUrl = '' }: { data: NodeContentData; imageUrl?
         }
 
         const blob = await response.blob();
+        if (isTiffImage(imageUrl, blob.type)) {
+          const tiffPreviewUrl = await createTiffPreviewUrl(imageUrl, blob);
+          if (!canceled) {
+            setPreviewUrl(tiffPreviewUrl);
+          }
+          return;
+        }
+
         const typedBlob = new Blob([blob], {
           type: getImageBlobType(imageUrl, blob.type),
         });