package eu.tankernn.gameEngine.postProcessing.gaussianBlur;

import eu.tankernn.gameEngine.loader.textures.Texture;
import eu.tankernn.gameEngine.postProcessing.IPostProcessingEffect;
import eu.tankernn.gameEngine.postProcessing.ImageRenderer;

public class HorizontalBlur implements IPostProcessingEffect {
	
	private ImageRenderer renderer;
	private HorizontalBlurShader shader;
	
	public HorizontalBlur(int targetFboWidth, int targetFboHeight){
		shader = new HorizontalBlurShader();
		shader.start();
		shader.targetWidth.loadFloat(targetFboWidth);
		shader.stop();
		renderer = new ImageRenderer(targetFboWidth, targetFboHeight);
	}
	
	public void render(Texture colorTexture, Texture texture){
		shader.start();
		texture.bindToUnit(0);
		renderer.renderQuad();
		shader.stop();
	}
	
	public Texture getOutputTexture(){
		return renderer.getOutputTexture();
	}
	
	public void cleanUp(){
		renderer.cleanUp();
		shader.cleanUp();
	}

}