156 lines
3.5 KiB
C++
156 lines
3.5 KiB
C++
// indices_rect
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// 该示例演示使用索引数据画一个矩形，并使用了颜色材质
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#include"VulkanAppFramework.h"
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#include<hgl/math/Math.h>
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using namespace hgl;
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using namespace hgl::graph;
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constexpr uint32_t SCREEN_WIDTH=128;
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constexpr uint32_t SCREEN_HEIGHT=128;
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constexpr uint32_t VERTEX_COUNT=4;
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static Vector4f color(1,1,1,1);
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constexpr float vertex_data[VERTEX_COUNT][2]=
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{
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{0,0},
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{SCREEN_WIDTH,0},
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{0,SCREEN_HEIGHT},
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{SCREEN_WIDTH,SCREEN_HEIGHT}
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};
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constexpr uint32_t INDEX_COUNT=6;
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constexpr uint16 index_data[INDEX_COUNT]=
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{
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0,1,3,
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0,3,2
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};
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class TestApp:public VulkanApplicationFramework
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{
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private:
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Camera cam;
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MaterialInstance * material_instance =nullptr;
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RenderableInstance *renderable_instance =nullptr;
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GPUBuffer * ubo_camera_info =nullptr;
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Pipeline * pipeline =nullptr;
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private:
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bool RecreatePipeline()
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{
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// pipeline=db->CreatePipeline(material_instance,sc_render_target,OS_TEXT("res/pipeline/solid2d"));
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pipeline=CreatePipeline(material_instance,InlinePipeline::Solid2D); //等同上一行，为Framework重载，默认使用swapchain的render target
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return pipeline;
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}
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bool InitMaterial()
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{
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material_instance=db->CreateMaterialInstance(OS_TEXT("res/material/FragColor"));
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if(!material_instance)return(false);
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return RecreatePipeline();
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}
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bool InitUBO()
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{
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const VkExtent2D extent=sc_render_target->GetExtent();
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cam.vp_width=cam.width=extent.width;
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cam.vp_height=cam.height=extent.height;
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cam.Refresh();
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ubo_camera_info=db->CreateUBO(sizeof(CameraInfo),&cam.info);
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if(!ubo_camera_info)
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return(false);
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{
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MaterialParameters *mp_global=material_instance->GetMP(DescriptorSetType::Global);
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if(!mp_global)
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return(false);
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if(!mp_global->BindUBO("g_camera",ubo_camera_info))return(false);
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mp_global->Update();
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}
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return(true);
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}
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bool InitVBO()
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{
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auto render_obj=db->CreateRenderable(VERTEX_COUNT);
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if(!render_obj)return(false);
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if(!render_obj->Set(VAN::Position,db->CreateVAB(VF_VEC2,VERTEX_COUNT,vertex_data)))return(false);
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if(!render_obj->Set(db->CreateIBO16(INDEX_COUNT,index_data)))return(false);
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renderable_instance=db->CreateRenderableInstance(render_obj,material_instance,pipeline);
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return(true);
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}
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public:
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bool Init()
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{
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if(!VulkanApplicationFramework::Init(SCREEN_WIDTH,SCREEN_HEIGHT))
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return(false);
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if(!InitMaterial())
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return(false);
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if(!InitUBO())
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return(false);
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if(!InitVBO())
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return(false);
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BuildCommandBuffer(renderable_instance);
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return(true);
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}
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void Resize(int w,int h)override
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{
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cam.vp_width=w;
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cam.vp_height=h;
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cam.Refresh();
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ubo_camera_info->Write(&cam.info);
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RecreatePipeline();
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renderable_instance->UpdatePipeline(pipeline);
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BuildCommandBuffer(renderable_instance);
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}
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};//class TestApp:public VulkanApplicationFramework
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int main(int,char **)
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{
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#ifdef _DEBUG
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if(!CheckStrideBytesByFormat())
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return 0xff;
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#endif//
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TestApp app;
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if(!app.Init())
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return(-1);
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while(app.Run());
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return 0;
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}
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