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Assets/12.WeixinMinigame/Runtime/wechat-default/unity-sdk/font/fix-cmap.js

@@ -0,0 +1,66 @@
+export default function fixCmapTable(arrayBuffer) {
+    
+    const font = new DataView(arrayBuffer);
+    const tableCount = font.getUint16(4);
+    
+    let cmapOffset = 0;
+    let cmapLength = 0;
+    let cmapCheckSumOffset = 0;
+    let cmapCheckSum = 0;
+    
+    for (let i = 0; i < tableCount; i++) {
+        const tag = font.getUint32(12 + i * 16);
+        
+        if (tag === 0x636D6170) { 
+            cmapCheckSumOffset = 12 + i * 16 + 4;
+            cmapCheckSum = font.getUint32(cmapCheckSumOffset);
+            cmapOffset = font.getUint32(12 + i * 16 + 8);
+            cmapLength = font.getUint32(12 + i * 16 + 12);
+            GameGlobal.manager.Logger.pluginLog(`[font]cmapCheckSubOffset [${cmapCheckSumOffset}], cmapCheckSum [${cmapCheckSum}], cmapOffset [${cmapOffset}], cmapLength [${cmapLength}]`);
+        }
+    }
+    if (cmapOffset === 0) {
+        GameGlobal.manager.Logger.pluginError('[font]not found cmap');
+        return false;
+    }
+    
+    const cmap = new DataView(arrayBuffer, cmapOffset, cmapLength);
+    const numTables = cmap.getUint16(2);
+    let subtableOffset = 4;
+    let targetSubtableOffset = 0;
+    
+    for (let i = 0; i < numTables; i++) {
+        const platformId = cmap.getUint16(subtableOffset);
+        const encodingId = cmap.getUint16(subtableOffset + 2);
+        
+        
+        if (platformId === 0 && encodingId === 5) {
+            if (i === (numTables - 1)) { 
+                targetSubtableOffset = subtableOffset;
+                GameGlobal.manager.Logger.pluginLog(`[font]targetSubtableOffset ${targetSubtableOffset}`);
+            }
+            break;
+        }
+        subtableOffset += 8;
+    }
+    
+    if (targetSubtableOffset > 0) {
+        
+        
+        
+        const newCmapView = new DataView(arrayBuffer, cmapOffset, cmapLength - 8);
+        
+        newCmapView.setUint16(2, numTables - 1);
+        let sum = 0;
+        const lengthInUint32 = (newCmapView.byteLength + 3) / 4;
+        for (let i = 0; i < lengthInUint32; i++) {
+            sum += newCmapView.getUint32(i);
+        }
+        
+        font.setUint32(cmapCheckSumOffset, sum);
+        return true;
+    }
+    GameGlobal.manager.Logger.pluginLog('[font]not found cmap subtable');
+    
+    return false;
+}