tav-media
Version:
Cross platform media editing framework
140 lines (139 loc) • 5.34 kB
JavaScript
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var PAGImage_1;
import { NativeImage } from './core/native-image';
import { wasmAwaitRewind, wasmAsyncMethod, destroyVerify } from './utils/decorators';
import { PAGModule } from './pag-module';
import { Matrix } from './core/matrix';
let PAGImage = PAGImage_1 = class PAGImage {
constructor(wasmIns) {
this.isDestroyed = false;
this.wasmIns = wasmIns;
}
/**
* Create pag image from image file.
*/
static fromFile(data) {
return __awaiter(this, void 0, void 0, function* () {
return new Promise((resolve, reject) => {
const image = new Image();
image.onload = () => __awaiter(this, void 0, void 0, function* () {
resolve(PAGImage_1.fromSource(image));
});
image.onerror = (error) => {
reject(error);
};
image.src = URL.createObjectURL(data);
});
});
}
/**
* Create pag image from image source or video source.
* Make sure the target pixel is shown on the screen.
* Like
* ``` javascript
* Image.onload = async () => {
* return await PAGImage.fromSource(Image)
* }
* ```
*/
static fromSource(source) {
const nativeImage = new NativeImage(source);
const wasmIns = PAGModule._PAGImage._FromNativeImage(nativeImage);
if (!wasmIns)
throw new Error('Make PAGImage from source fail!');
return new PAGImage_1(wasmIns);
}
/**
* Creates a PAGImage object from an array of pixel data, return null if it's not valid pixels.
*/
static fromPixels(pixels, width, height, colorType, alphaType) {
const rowBytes = width * (colorType === 1 /* ColorType.ALPHA_8 */ ? 1 : 4);
const dataPtr = PAGModule._malloc(pixels.byteLength);
const dataOnHeap = new Uint8Array(PAGModule.HEAPU8.buffer, dataPtr, pixels.byteLength);
dataOnHeap.set(pixels);
const wasmIns = PAGModule._PAGImage._FromPixels(dataPtr, width, height, rowBytes, colorType, alphaType);
if (!wasmIns)
throw new Error('Make PAGImage from pixels fail!');
return new PAGImage_1(wasmIns);
}
/**
* Creates a PAGImage object from the specified backend texture, return null if the texture is
* invalid.
*/
static fromTexture(textureID, width, height, flipY) {
const wasmIns = PAGModule._PAGImage._FromTexture(textureID, width, height, flipY);
if (!wasmIns)
throw new Error('Make PAGImage from texture fail!');
return new PAGImage_1(wasmIns);
}
/**
* Returns the width in pixels.
*/
width() {
return this.wasmIns._width();
}
/**
* Returns the height in pixels.
*/
height() {
return this.wasmIns._height();
}
/**
* Returns the current scale mode. The default value is PAGScaleMode::LetterBox.
*/
scaleMode() {
return this.wasmIns._scaleMode();
}
/**
* Specifies the rule of how to scale the content to fit the image layer's original size.
* The matrix changes when this method is called.
*/
setScaleMode(scaleMode) {
this.wasmIns._setScaleMode(scaleMode);
}
/**
* Returns a copy of current matrix.
*/
matrix() {
const wasmIns = this.wasmIns._matrix();
if (!wasmIns)
throw new Error('Get matrix fail!');
return new Matrix(wasmIns);
}
/**
* Set the transformation which will be applied to the content.
* The scaleMode property will be set to PAGScaleMode::None when this method is called.
*/
setMatrix(matrix) {
this.wasmIns._setMatrix(matrix.wasmIns);
}
/**
* Destroy the pag image.
*/
destroy() {
this.wasmIns.delete();
this.isDestroyed = true;
}
};
__decorate([
wasmAsyncMethod
], PAGImage, "fromFile", null);
PAGImage = PAGImage_1 = __decorate([
destroyVerify,
wasmAwaitRewind
], PAGImage);
export { PAGImage };