com.daxie.joglf.gl.drawer.Dynamic2DFilledCirclesDrawer Maven / Gradle / Ivy

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package com.daxie.joglf.gl.drawer;

import java.awt.Point;
import java.nio.Buffer;
import java.nio.FloatBuffer;
import java.nio.IntBuffer;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;

import com.daxie.basis.coloru8.ColorU8;
import com.daxie.joglf.gl.shader.GLShaderFunctions;
import com.daxie.joglf.gl.shape.Circle2D;
import com.daxie.joglf.gl.tool.CoordinateFunctions;
import com.daxie.joglf.gl.wrapper.GLWrapper;
import com.daxie.log.LogFile;
import com.jogamp.common.nio.Buffers;
import com.jogamp.opengl.GL4;

/**
 * Draws 2D filled circles.
 * @author Daba
 *
 */
public class Dynamic2DFilledCirclesDrawer extends Dynamic2DDrawer{
	private Map circles_map;
	private Map indices_sizes_map;
	
	private int buffer_num;
	
	private IntBuffer indices_vbo;
	private IntBuffer pos_vbo;
	private IntBuffer dif_vbo;
	private IntBuffer vao;
	
	public Dynamic2DFilledCirclesDrawer() {
		circles_map=new TreeMap<>();
		indices_sizes_map=new HashMap<>();
		
		buffer_num=0;
	}
	
	@Override
	public void SetDefaultProgram() {
		this.RemoveAllShaders();
		this.AddProgram("line_drawer");
	}
	
	@Override
	public void UpdateBuffers() {
		int circle_num=circles_map.size();
		
		if(buffer_num!=0)this.DeleteBuffers();
		
		indices_vbo=Buffers.newDirectIntBuffer(circle_num);
		pos_vbo=Buffers.newDirectIntBuffer(circle_num);
		dif_vbo=Buffers.newDirectIntBuffer(circle_num);
		vao=Buffers.newDirectIntBuffer(circle_num);
		
		GLWrapper.glGenBuffers(circle_num, indices_vbo);
		GLWrapper.glGenBuffers(circle_num, pos_vbo);
		GLWrapper.glGenBuffers(circle_num, dif_vbo);
		GLWrapper.glGenVertexArrays(circle_num, vao);
		
		buffer_num=circle_num;
		
		int window_width=this.GetWindowWidth();
		int window_height=this.GetWindowHeight();
		
		int count=0;
		for(Circle2D circle:circles_map.values()) {
			Point center=circle.GetCenter();
			int radius=circle.GetRadius();
			ColorU8 color=circle.GetColor();
			int div_num=circle.GetDivNum();
			
			FloatBuffer pos_buffer=Buffers.newDirectFloatBuffer(2*(div_num+1));
			FloatBuffer dif_buffer=Buffers.newDirectFloatBuffer(4*(div_num+1));
			
			int center_x=center.x;
			int center_y=center.y;
			float normalized_center_x=CoordinateFunctions.NormalizeCoordinate(center_x, window_width);
			float normalized_center_y=CoordinateFunctions.NormalizeCoordinate(center_y, window_height);
			pos_buffer.put(normalized_center_x);
			pos_buffer.put(normalized_center_y);
			
			for(int i=0;i program_names=this.GetProgramNames();
		
		for(String program_name:program_names) {
			GLShaderFunctions.UseProgram(program_name);
			
			for(int i=0;i