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未验证 提交 8a87c770 编写于 作者: O openharmony_ci 提交者： Gitee
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!10308 资料更新 

Merge pull request !10308 from 冯泽悟/master
上级 cdbe37c6 319117ee
隐藏空白更改
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Showing with 63 addition and 97 deletion
zh-cn/application-dev/media/image.md
浏览文件 @ 8a87c770
......@@ -21,45 +21,43 @@ let opts = { alphaType: 0, editable: true, pixelFormat: 4, scaleMode: 1, size: {
// 创建pixelmap对象
const color = new ArrayBuffer(96);
let opts = { alphaType: 0, editable: true, pixelFormat: 4, scaleMode: 1, size: { height: 2, width: 3 } }
image.createPixelMap(color, opts, pixelmap => {
expect(pixelmap !== null).assertTrue();
console.info('TC_001-1 success');
done();
})
image.createPixelMap(color, opts, pixelmap => {
console.log('Succeeded in creating pixelmap.');
})
// 用于读像素
pixelmap.readPixels(area,(data) => {
if(data !== null) {
var bufferArr = new Uint8Array(area.pixels);
if(data !== null) {
var bufferArr = new Uint8Array(area.pixels);
var res = true;
for (var i = 0; i < bufferArr.length; i++) {
console.info('TC_021-1 buffer ' + bufferArr[i]);
if(res) {
if(bufferArr[i] == 0) {
res = false;
console.info('TC_021-1 Success');
expect(true).assertTrue();
done();
break;
}
}
console.info(' buffer ' + bufferArr[i]);
if(res) {
if(bufferArr[i] == 0) {
res = false;
console.log('readPixels end.');
break;
}
}
}
}
})
// 用于存像素
const readBuffer = new ArrayBuffer(96);
pixelmap.readPixelsToBuffer(readBuffer,() => {
var bufferArr = new Uint8Array(readBuffer);
var res = true;
for (var i = 0; i < bufferArr.length; i++) {
if(res) {
if (bufferArr[i] !== 0) {
res = false;
console.info('TC_020-1 Success');
expect(true).assertTrue();
done();
break;
var bufferArr = new Uint8Array(readBuffer);
var res = true;
for (var i = 0; i < bufferArr.length; i++) {
if(res) {
if (bufferArr[i] !== 0) {
res = false;
console.log('readPixelsToBuffer end.');
break;
}
}
}
}
})
// 用于写像素
pixelmap.writePixels(area,() => {
......@@ -71,56 +69,51 @@ pixelmap.writePixels(area,() => {
if(res) {
if (readArr[i] !== 0) {
res = false;
console.info('TC_022-1 Success');
expect(true).assertTrue();
done();
console.log('readPixels end.please check buffer');
break;
}
}
}
})
})
// 用于写像素到缓冲区
pixelmap.writeBufferToPixels(writeColor).then(() => {
const readBuffer = new ArrayBuffer(96);
pixelmap.readPixelsToBuffer(readBuffer).then (() => {
var bufferArr = new Uint8Array(readBuffer);
var res = true;
for (var i = 0; i < bufferArr.length; i++) {
if(res) {
if (bufferArr[i] !== i) {
res = false;
console.info('TC_023 Success');
expect(true).assertTrue()
done();
var bufferArr = new Uint8Array(readBuffer);
var res = true;
for (var i = 0; i < bufferArr.length; i++) {
if(res) {
if (bufferArr[i] !== i) {
res = false;
console.log('readPixels end.please check buffer');
break;
}
}
}
})
})
// 用于获取图片信息
pixelmap.getImageInfo( imageInfo => {
if (imageInfo !== null) {
console.info('TC_024-1 imageInfo is ready');
expect(imageInfo.size.height == 4).assertTrue();
expect(imageInfo.size.width == 6).assertTrue();
expect(imageInfo.pixelFormat == 4).assertTrue();
done();
console.log('Succeeded in getting imageInfo');
}
})
// 用于释放pixelmap
pixelmap.release(()=>{
expect(true).assertTrue();
console.log('TC_027-1 suc');
done();
console.log('Succeeded in releasing pixelmap');
})
let path = '/data/local/tmp/test.jpg';
// 用于创建imagesource(uri)
const imageSourceApi = image.createImageSource(path); // '/data/local/tmp/test.jpg'
let path = '/data/local/tmp/test.jpg';
const imageSourceApi = image.createImageSource(path);
// 用于创建imagesource(fd)
const imageSourceApi = image.createImageSource(29);
let fd = 29;
const imageSourceApi = image.createImageSource(fd);
// 用于创建imagesource(data)
const data = new ArrayBuffer(96);
......@@ -128,15 +121,15 @@ const imageSourceApi = image.createImageSource(data);
// 用于释放imagesource
imageSourceApi.release(() => {
console.info('TC_044-1 Success');
})
console.log('Succeeded in releasing imagesource');
})
// 用于编码
const imagePackerApi = image.createImagePacker();
const imageSourceApi = image.createImageSource(0);
let packOpts = { format:"image/jpeg", quality:98 };
imagePackerApi.packing(imageSourceApi, packOpts, data => {
console.info('TC_062-1 finished');
expect(data !== null).assertTrue();
done();
console.log('Succeeded in packing');
})
// 用于释放imagepacker
......@@ -164,75 +157,54 @@ let decodingOptions = {
// 用于回调方式创建pixelmap
imageSourceApi.createPixelMap(decodingOptions, pixelmap => {
console.info('TC_050 createPixelMap ');
expect(pixelmap !== null ).assertTrue();
done();
})
}
console.log('Succeeded in creating pixelmap.');
})
// 用于promise创建pixelmap
imageSourceApi.createPixelMap().then(pixelmap => {
console.info('TC_050-11 createPixelMap ');
expect(pixelmap !== null ).assertTrue();
done();
console.log('Succeeded in creating pixelmap.');
})
// 函数调用发生异常时，捕捉错误信息
catch(error => {
console.log('TC_050-11 error: ' + error);
expect().assertFail();
done();
console.log('Failed in creating pixelmap.' + error);
})
// 用于获取像素每行字节数
pixelmap.getBytesNumberPerRow( num => {
console.info('TC_025-1 num is ' + num);
expect(num == expectNum).assertTrue();
done();
console.log('Succeeded in getting BytesNumber PerRow.');
})
// 用于获取像素总字节数
pixelmap.getPixelBytesNumber(num => {
console.info('TC_026-1 num is ' + num);
expect(num == expectNum).assertTrue();
done();
console.log('Succeeded in getting PixelBytesNumber.');
})
// 用于获取pixelmap信息
pixelmap.getImageInfo( imageInfo => {})
// 用于打印获取失败信息
console.info('TC_024-1 imageInfo is empty');
expect(false).assertTrue()
// 用于释放pixelmap
pixelmap.release(()=>{
expect(true).assertTrue();
console.log('TC_027-1 suc');
done();
console.log('Succeeded in releasing pixelmap');
})
// 用于捕捉释放失败信息
catch(error => {
console.log('TC_027-1 error: ' + error);
expect().assertFail();
done();
console.log('Failed in releasing pixelmap.' + error);
})
```
### 编码场景
```js
let path = '/data/local/tmp/test.png' // 设置创建imagesource的路径
let path = '/data/local/tmp/test.png'; // 设置创建imagesource的路径
// 用于设置imagesource
const imageSourceApi = image.createImageSource(path); // '/data/local/tmp/test.png'
// 如果创建imagesource失败，打印错误信息
if (imageSourceApi == null) {
console.info('TC_062 create image source failed');
expect(false).assertTrue();
done();
console.log('Failed in creating imageSource.');
}
// 如果创建imagesource成功，则创建imagepacker
......@@ -240,9 +212,7 @@ const imagePackerApi = image.createImagePacker();
// 如果创建失败，打印错误信息
if (imagePackerApi == null) {
console.info('TC_062 create image packer failed');
expect(false).assertTrue();
done();
console.log('Failed in creating imagePacker.');
}
// 如果创建imagepacker成功，则设置编码参数
......@@ -252,19 +222,15 @@ let packOpts = { format:["image/jpeg"], // 支持编码的格式为jpg
// 用于编码
imagePackerApi.packing(imageSourceApi, packOpts)
.then( data => {
console.info('TC_062 finished');
expect(data !== null).assertTrue();
done();
console.log('Succeeded in packing');
})
// 编码完成，释放imagepacker
imagePackerApi.release();
// 用于获取imagesource信息
imageSourceApi.getImageInfo(imageInfo => {
console.info('TC_045 imageInfo');
expect(imageInfo !== null).assertTrue();
done();
console.log('Succeeded in getting imageInfo');
})
// 用于更新增量数据
......
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