#pragma once

#include <QWindow>
#include "../GlobalTypes.h"
namespace YSG{
    class LIB_DECL GraphicLayer {
    public:
    };
    class PainterLayer : public GraphicLayer{
    public:
        QPixmap *mBuffer1{};
        QPixmap *mBuffer2{};
        bool it = true;
        void draw() {
            it = !it;
            QPixmap* cur = it ? mBuffer1 : mBuffer2;
            QPainter painter(cur);
            painter.fillRect(cur->rect(), Qt::red);
        }
        void updateTexture() {
            QPixmap* cur = it ? mBuffer1 : mBuffer2;
        }
    };
    class LIB_DECL OpenglLayer : public GraphicLayer {
    public:
        void draw();
    };
    class Graphic : public QWindow {
    public:
        Graphic();
        QVector<GraphicLayer*> mLayers;
        QVector<PainterLayer*> mPainterBuffers;
        QVector<OpenglLayer*> mOpenglBuffers;
        SpinLock mPainterRenderMtx, mResizeMtx;
        bool mFirstResize;
    protected:
        bool event(QEvent*) override;
    public:
        virtual void createLayers() {

        };
        void render() {
            if(mFirstResize) return;
            SpinLockGuard g(&mResizeMtx);
            for(OpenglLayer* b : mOpenglBuffers) {
                b->draw();
            }
            // 插入opengl同步变量
            for(PainterLayer* b : mPainterBuffers) {
                b->draw();
                b->updateTexture();
            }
            // 等待opengl同步变量
            // opengl汇总绘制
        }
    };
}