// AutoMergeMaterialInstance
// 该范例主要演示使用一个材质下的不同材质实例传递颜色参数绘制三角形，并依赖RenderList中的自动合并功能，让同一材质下所有不同材质实例的对象一次渲染完成。

#include"VulkanAppFramework.h"
#include<hgl/math/Math.h>
#include<hgl/filesystem/FileSystem.h>
#include<hgl/graph/VKRenderablePrimitiveCreater.h>
#include<hgl/graph/mtl/2d/Material2DCreateConfig.h>
#include<hgl/graph/RenderList.h>

using namespace hgl;
using namespace hgl::graph;

constexpr uint32_t SCREEN_WIDTH=1024;
constexpr uint32_t SCREEN_HEIGHT=1024;

constexpr uint32_t VERTEX_COUNT=3;

constexpr float position_data[VERTEX_COUNT*2]=
{
     0.0,  0.0,
    -0.1,  0.9,
     0.1,  0.9
};

constexpr float color_data[6][4]=
{
    {1,0,0,1},
    {1,1,0,1},
    {0,1,0,1},
    {0,1,1,1},
    {0,0,1,1},
    {1,0,1,1},
};

class TestApp:public VulkanApplicationFramework
{
private:

    SceneNode           render_root;
    RenderList *        render_list         =nullptr;

    MaterialInstance *  material_instance[6]{};
    Renderable *        render_obj[6]       {};

    Pipeline *          pipeline            =nullptr;

private:

    bool InitMaterial()
    {
        {
            mtl::Material2DCreateConfig cfg(device->GetDeviceAttribute(),"PureColor2D");

            cfg.coordinate_system=CoordinateSystem2D::NDC;
            cfg.local_to_world=true;

            AutoDelete<mtl::MaterialCreateInfo> mci=mtl::CreatePureColor2D(&cfg);

            for(uint i=0;i<6;i++)
            {
                material_instance[i]=db->CreateMaterialInstance(mci);

                if(!material_instance[i])
                    return(false);

                material_instance[i]->WriteMIData(color_data[i],sizeof(float)*4);       //设置MaterialInstance的数据
            }
        }

//        pipeline=db->CreatePipeline(material_instance,sc_render_target,OS_TEXT("res/pipeline/solid2d"));
//        pipeline=CreatePipeline(material_instance,InlinePipeline::Solid2D,Prim::Triangles);     //等同上一行，为Framework重载，默认使用swapchain的render target
        
        return pipeline;
    }

    bool InitVBO()
    {
        //RenderablePrimitiveCreater rpc(db,VERTEX_COUNT);

        //if(!rpc.SetVBO(VAN::Position,   VF_V2F, position_data))return(false);
        //
        //render_obj=rpc.Create(material_instance,pipeline);

        //if(!render_obj)
        //    return(false);
        //
        //for(uint i=0;i<6;i++)
        //{
        //    render_root.CreateSubNode(rotate(deg2rad(60*i),Vector3f(0,0,1)),render_obj);
        //}

        //render_root.RefreshMatrix();

        //render_list->Expend(&render_root);

        return(true);
    }

public:

    ~TestApp()
    {
        SAFE_CLEAR(render_list);
    }

    bool Init()
    {
        if(!VulkanApplicationFramework::Init(SCREEN_WIDTH,SCREEN_HEIGHT))
            return(false);

        render_list=new RenderList(device);

        if(!InitMaterial())
            return(false);

        if(!InitVBO())
            return(false);

        BuildCommandBuffer(render_list);

        return(true);
    }

    void Resize(int w,int h)override
    {
        VulkanApplicationFramework::Resize(w,h);

        BuildCommandBuffer(render_list);
    }
};//class TestApp:public VulkanApplicationFramework

int main(int,char **)
{
    TestApp app;

    if(!app.Init())
        return(-1);

    while(app.Run());

    return 0;
}