public void surface2File(String basename) throws IOException {
if (!readBufferUtil.isValid()) {
return;
}
File file = File.createTempFile(basename + shotNum + "-", ".ppm");
TextureIO.write(readBufferUtil.getTextureData(), file);
System.out.println("Wrote: " + file.getAbsolutePath() + ", ...");
shotNum++;
readBufferUtil.rewindPixelBuffer();
}
public void surfaceUpdated(Object updater, NativeWindow window, long when) {
if (updater instanceof GLDrawable) {
GLDrawable drawable = (GLDrawable) updater;
GLContext ctx = GLContext.getCurrent();
if (null != ctx && ctx.getGLDrawable() == drawable) {
GL gl = ctx.getGL();
// FIXME glFinish() is an expensive paranoia sync, should not be necessary due to spec
gl.glFinish();
readBufferUtil.fetchOffscreenTexture(drawable, gl);
gl.glFinish();
try {
surface2File("shot");
} catch (IOException ex) {
throw new RuntimeException("can not write survace to file", ex);
}
}
}
}
public void dispose() {
readBufferUtil.dispose();
}