ShaderManager.java 文件源码

/** Resizes internal RavCamera for framebuffer use, call this in you ApplicationListener's resize.
 * 
 * @param width - new screen width
 * @param height - new screen height
 * @param resizeFramebuffers - whether all of the framebuffers should be recreated to match new screen size */
public void resize (int width, int height, boolean resizeFramebuffers) {
    // ?????
    if (resizeFramebuffers) {
        Keys<String> keys = frameBuffers.keys();
        while (keys.hasNext) {
            String key = keys.next();
            FrameBuffer fb = frameBuffers.get(key);
            int oldWidth = fb.getWidth();
            int oldHeight = fb.getHeight();
            Format format = fb.getColorBufferTexture().getTextureData().getFormat();
            fb.dispose();
            frameBuffers.put(key, null);
            float factorX = 1f * width / screenCamera.viewportWidth;
            float factorY = 1f * height / screenCamera.viewportHeight;
            createFB(key, format, (int)(factorX * oldWidth), (int)(factorY * oldHeight));
            // System.out.println("Recreated FB '" + key + "' from " +
            // oldWidth + "x" + oldHeight + " to " +
            // frameBuffers.get(key).getWidth() + "x" +
            // frameBuffers.get(key).getHeight());
        }
    }
    screenCamera = new OrthographicCamera(width, height);
    createScreenQuad();
}