app/node_modules/@babylonjs/core/Engines/Extensions/engine.videoTexture.js

import { ThinEngine } from "../../Engines/thinEngine.js";

ThinEngine.prototype.updateVideoTexture = function (texture, video, invertY) {
    if (!texture || texture._isDisabled) {
        return;
    }
    const glformat = this._getInternalFormat(texture.format);
    const internalFormat = this._getRGBABufferInternalSizedFormat(0, texture.format);
    const wasPreviouslyBound = this._bindTextureDirectly(this._gl.TEXTURE_2D, texture, true);
    this._unpackFlipY(!invertY); // Video are upside down by default
    try {
        // Testing video texture support
        if (this._videoTextureSupported === undefined) {
            // clear old errors just in case.
            this._gl.getError();
            this._gl.texImage2D(this._gl.TEXTURE_2D, 0, internalFormat, glformat, this._gl.UNSIGNED_BYTE, video);
            if (this._gl.getError() !== 0) {
                this._videoTextureSupported = false;
            }
            else {
                this._videoTextureSupported = true;
            }
        }
        // Copy video through the current working canvas if video texture is not supported
        if (!this._videoTextureSupported) {
            if (!texture._workingCanvas) {
                texture._workingCanvas = this.createCanvas(texture.width, texture.height);
                const context = texture._workingCanvas.getContext("2d");
                if (!context) {
                    throw new Error("Unable to get 2d context");
                }
                texture._workingContext = context;
                texture._workingCanvas.width = texture.width;
                texture._workingCanvas.height = texture.height;
            }
            texture._workingContext.clearRect(0, 0, texture.width, texture.height);
            texture._workingContext.drawImage(video, 0, 0, video.videoWidth, video.videoHeight, 0, 0, texture.width, texture.height);
            this._gl.texImage2D(this._gl.TEXTURE_2D, 0, internalFormat, glformat, this._gl.UNSIGNED_BYTE, texture._workingCanvas);
        }
        else {
            this._gl.texImage2D(this._gl.TEXTURE_2D, 0, internalFormat, glformat, this._gl.UNSIGNED_BYTE, video);
        }
        if (texture.generateMipMaps) {
            this._gl.generateMipmap(this._gl.TEXTURE_2D);
        }
        if (!wasPreviouslyBound) {
            this._bindTextureDirectly(this._gl.TEXTURE_2D, null);
        }
        //    this.resetTextureCache();
        texture.isReady = true;
    }
    catch (ex) {
        // Something unexpected
        // Let's disable the texture
        texture._isDisabled = true;
    }
};
//# sourceMappingURL=engine.videoTexture.js.map