Method run

tools/png2bmp.js:302–482

()

	} 
	
	run() {
		let inputPaths = this.inputPaths;
		let c = inputPaths.length;
		let width, height;
		let buffer;
		let offset = 0;
		let y = 0;
		if (c == 1) {
			let pngPath = inputPaths[0];
			let png = new PNG(this.readFileBuffer(pngPath));
			if (!this.checkPNG(png))
				throw new Error("'" + pngPath + "': invalid PNG format!");
			let pngWidth = png.width;
			let pngHeight = png.height;
			if ((this.rotation == 0) || (this.rotation == 180)) {
				width = this.pad(pngWidth);
				height = pngHeight;
			}
			else {
				width = pngWidth;
				height = this.pad(pngHeight);
			}
			buffer = new Uint8Array(width * height * 4);
			while (y < pngHeight) {
				let x = 0;
				this.transferLine(png, buffer, offset);
				offset += (pngWidth * 4);
				x += pngWidth;
				while (x < width) {
					buffer[offset++] = 0;
					buffer[offset++] = 0;
					buffer[offset++] = 0;
					buffer[offset++] = 255;
					x++;
				}
				y++;
			}
		}
		else {
			let pngs = new Array(c).fill();
			let pngWidth, pngHeight;
			for (let i = 0; i < c; i++) {
				let pngPath = inputPaths[i];
				let png = new PNG(this.readFileBuffer(pngPath));
				if (!this.checkPNG(png))
					throw new Error("'" + pngPath + "': invalid PNG format!");
				if (i == 0) {
					pngWidth = png.width;
					pngHeight = png.height;
				}
				else {
					if (pngWidth != png.width)
						throw new Error("'" + pngPath + "': invalid width!");
					if (pngHeight != png.height)
						throw new Error("'" + pngPath + "': invalid height!");
				}
				pngs[i] = png;
			}