public XvfbFileScreenshotSource(File path) {
xvfbInterface = JnaLibraryLoader.getXvfbInterface();
interfacePointer = xvfbInterface.xvfb_interface_init(path.getAbsolutePath());
if (interfacePointer == null) {
throw new IllegalStateException("Could not create xvfb interface");
}
doStartupSanityChecks();
}
@Override
public int applyScreenshot(Pointer encoderContext) throws MissingFrameException {
EncoderInterface encoder = JnaLibraryLoader.getEncoder();
Pointer screenshotData = xvfbInterface.xvfb_interface_getScreenshot(interfacePointer);
if (screenshotData == null) {
throw new MissingFrameException(
"Could not fetch screenshot data - result was a null pointer!");
}
return encoder.convert_frame(encoderContext, screenshotData);
}