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未验证 提交 d6122d03 编写于 作者: O openharmony_ci 提交者： Gitee
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!10549 翻译完成：10290 资料更新 （仅涉及代码更新） 

Merge pull request !10549 from wusongqing/TR10290
上级 7ebc6da6 96a63a19
隐藏空白更改
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Showing with 59 addition and 95 deletion
en/application-dev/media/image.md
浏览文件 @ d6122d03
......@@ -21,45 +21,42 @@ let opts = { alphaType: 0, editable: true, pixelFormat: 4, scaleMode: 1, size: {
// Create a PixelMap object.
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.');
})
// Read pixels.
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;
}
}
}
}
})
// Store pixels.
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;
}
}
}
}
})
// Write pixels.
pixelmap.writePixels(area,() => {
......@@ -71,55 +68,49 @@ 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;
}
}
}
})
})
// Write pixels to the buffer.
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;
}
}
}
})
})
// Obtain image information.
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');
}
})
// Release the PixelMap object.
pixelmap.release(()=>{
expect(true).assertTrue();
console.log('TC_027-1 suc');
done();
console.log('Succeeded in releasing pixelmap');
})
// Create an image source (uri).
const imageSourceApi = image.createImageSource(path); // '/data/local/tmp/test.jpg'
const imageSourceApi = image.createImageSource(path);
// Create an image source (fd).
const imageSourceApi = image.createImageSource(29);
const imageSourceApi = image.createImageSource(fd);
// Create an image source (data).
const data = new ArrayBuffer(96);
......@@ -127,15 +118,15 @@ const imageSourceApi = image.createImageSource(data);
// Release the image source.
imageSourceApi.release(() => {
console.info('TC_044-1 Success');
})
console.log('Succeeded in releasing imagesource');
})
// Encode the image.
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');
})
// Release the ImagePacker object.
......@@ -163,59 +154,40 @@ let decodingOptions = {
// Create a pixel map in callback mode.
imageSourceApi.createPixelMap(decodingOptions, pixelmap => {
console.info('TC_050 createPixelMap ');
expect(pixelmap !== null ).assertTrue();
done();
})
}
console.log('Succeeded in creating pixelmap.');
})
// Create a pixel map in promise mode.
imageSourceApi.createPixelMap().then(pixelmap => {
console.info('TC_050-11 createPixelMap ');
expect(pixelmap !== null ).assertTrue();
done();
console.log('Succeeded in creating pixelmap.');
})
// Capture error information when an exception occurs during function invoking.
catch(error => {
console.log('TC_050-11 error: ' + error);
expect().assertFail();
done();
console.log('Failed to create pixelmap.' + error);
})
// Obtain the number of bytes in each line of pixels.
pixelmap.getBytesNumberPerRow( num => {
console.info('TC_025-1 num is ' + num);
expect(num == expectNum).assertTrue();
done();
console.log('Succeeded in getting BytesNumber PerRow.');
})
// Obtain the total number of pixel bytes.
pixelmap.getPixelBytesNumber(num => {
console.info('TC_026-1 num is ' + num);
expect(num == expectNum).assertTrue();
done();
console.log('Succeeded in getting PixelBytesNumber.');
})
// Obtain the pixel map information.
pixelmap.getImageInfo( imageInfo => {})
// Print the failure information.
console.info('TC_024-1 imageInfo is empty');
expect(false).assertTrue()
// Release the PixelMap object.
pixelmap.release(()=>{
expect(true).assertTrue();
console.log('TC_027-1 suc');
done();
console.log('Succeeded in releasing pixelmap');
})
// Capture release failure information.
catch(error => {
console.log('TC_027-1 error: ' + error);
expect().assertFail();
done();
console.log('Failed to release pixelmap.' + error);
})
```
......@@ -229,9 +201,7 @@ const imageSourceApi = image.createImageSource(path); // '/data/local/tmp/test.p
// Print the error message if the image source fails to be created.
if (imageSourceApi == null) {
console.info('TC_062 create image source failed');
expect(false).assertTrue();
done();
console.log('Failed to create imageSource.');
}
// Create an image packer if the image source is successfully created.
......@@ -239,9 +209,7 @@ const imagePackerApi = image.createImagePacker();
// Print the error information if the image packer fails to be created.
if (imagePackerApi == null) {
console.info('TC_062 create image packer failed');
expect(false).assertTrue();
done();
console.log('Failed to create imagePacker.');
}
// Set encoding parameters if the image packer is successfully created.
......@@ -251,19 +219,15 @@ let packOpts = { format:["image/jpeg"], // The supported encoding format is jpg.
// Encode the image.
imagePackerApi.packing(imageSourceApi, packOpts)
.then( data => {
console.info('TC_062 finished');
expect(data !== null).assertTrue();
done();
console.log('Succeeded in packing');
})
// Release the image packer after the encoding is complete.
imagePackerApi.release();
// Obtain the image source information.
imageSourceApi.getImageInfo(imageInfo => {
console.info('TC_045 imageInfo');
expect(imageInfo !== null).assertTrue();
done();
console.log('Succeeded in getting imageInfo');
})
// Update incremental data.
......
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