Function scaleFrame

example/src/core/scaling.ts:88–113

(
  imageWidth: number,
  imageHeight: number,
  screenWidth: number,
)

}

export function scaleFrame(
  imageWidth: number,
  imageHeight: number,
  screenWidth: number,
) {
  return function scaledFrame(frame?: Frame): Frame | undefined {
    if (!frame) {
      return;
    }

    const portrait = imageHeight > imageWidth;

    if (portrait) {
      return scaleFramePortrait(screenWidth, imageWidth, imageHeight, frame);
    }

    return rotateFrame(
      scaleFramePortrait(
        screenWidth,
        imageHeight,
        imageWidth,
        rotateFrame(frame),
      ),
    );
  };
}