fix: 解决canvas相关API传入的宽高值不为整数时导致的错误。

src/core/helpers/protocol/canvas.js

+function getInt (method) {
+  return function (value, params) {
+    if (value) {
+      params[method] = Math.round(value)
+    }
+  }
+}
+
 export const canvasGetImageData = {
   canvasId: {
     type: String,
@@ -5,19 +13,23 @@ export const canvasGetImageData = {
   },
   x: {
     type: Number,
-    required: true
+    required: true,
+    validator: getInt('x')
   },
   y: {
     type: Number,
-    required: true
+    required: true,
+    validator: getInt('y')
   },
   width: {
     type: Number,
-    required: true
+    required: true,
+    validator: getInt('width')
   },
   height: {
     type: Number,
-    required: true
+    required: true,
+    validator: getInt('height')
   }
 }
 
@@ -32,18 +44,22 @@ export const canvasPutImageData = {
   },
   x: {
     type: Number,
-    required: true
+    required: true,
+    validator: getInt('x')
   },
   y: {
     type: Number,
-    required: true
+    required: true,
+    validator: getInt('y')
   },
   width: {
     type: Number,
-    required: true
+    required: true,
+    validator: getInt('width')
   },
   height: {
-    type: Number
+    type: Number,
+    validator: getInt('height')
   }
 }
 
@@ -55,23 +71,29 @@ const fileType = {
 export const canvasToTempFilePath = {
   x: {
     type: Number,
-    default: 0
+    default: 0,
+    validator: getInt('x')
   },
   y: {
     type: Number,
-    default: 0
+    default: 0,
+    validator: getInt('y')
   },
   width: {
-    type: Number
+    type: Number,
+    validator: getInt('width')
   },
   height: {
-    type: Number
+    type: Number,
+    validator: getInt('height')
   },
   destWidth: {
-    type: Number
+    type: Number,
+    validator: getInt('destWidth')
   },
   destHeight: {
-    type: Number
+    type: Number,
+    validator: getInt('destHeight')
   },
   canvasId: {
     type: String,

src/core/service/api/context/canvas.js

@@ -682,7 +682,14 @@ export function canvasToTempFilePath ({
       })
       return
     }
-    imgData = new ImageData(new Uint8ClampedArray(imgData), data.width, data.height)
+    try {
+      imgData = new ImageData(new Uint8ClampedArray(imgData), data.width, data.height)
+    } catch (error) {
+      invoke(callbackId, {
+        errMsg: 'canvasToTempFilePath:fail'
+      })
+      return
+    }
     var canvas = getTempCanvas()
     canvas.width = data.width
     canvas.height = data.height

src/core/view/components/canvas/index.vue

@@ -383,7 +383,7 @@ export default {
     }) {
       try {
         if (!height) {
-          height = data.length / 4 / width
+          height = Math.round(data.length / 4 / width)
         }
         this.$refs.canvas.getContext('2d').putImageData(new ImageData(new Uint8ClampedArray(data), width, height), x, y)
       } catch (error) {