121 lines
3.9 KiB
C++
121 lines
3.9 KiB
C++
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#include<hgl/graph/InlineGeometry.h>
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#include<hgl/graph/VertexBuffer.h>
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#include<hgl/graph/vulkan/VKDevice.h>
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#include<hgl/graph/vulkan/VKMaterial.h>
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#include<hgl/graph/vulkan/VKRenderable.h>
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#include<hgl/graph/vulkan/VKShaderModule.h>
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namespace hgl
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{
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namespace graph
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{
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vulkan::Renderable *CreateRectangle(vulkan::Device *device,vulkan::Material *mtl,const RectangleCreateInfo *rci)
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{
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const vulkan::VertexShaderModule *vsm=mtl->GetVertexShaderModule();
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vulkan::Renderable *render_obj=mtl->CreateRenderable(4);
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const int vertex_binding=vsm->GetStageInputBinding("Vertex");
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if(vertex_binding!=-1)
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{
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VB2f *vertex=new VB2f(4);
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vertex->Begin();
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vertex->WriteRectFan(rci->scope);
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vertex->End();
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render_obj->Set(vertex_binding,device->CreateVBO(vertex));
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delete vertex;
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}
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else
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{
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delete render_obj;
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return nullptr;
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}
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return render_obj;
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}
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vulkan::Renderable *CreateRoundRectangle(vulkan::Device *device,vulkan::Material *mtl,const RoundRectangleCreateInfo *rci)
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{
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const vulkan::VertexShaderModule *vsm=mtl->GetVertexShaderModule();
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vulkan::Renderable *render_obj=nullptr;
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const int vertex_binding=vsm->GetStageInputBinding("Vertex");
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if(vertex_binding==-1)
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return(nullptr);
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VB2f *vertex=nullptr;
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if(rci->radius==0||rci->round_per<=1) //这是要画矩形
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{
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vertex=new VB2f(4);
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vertex->Begin();
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vertex->WriteRectFan(rci->scope);
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vertex->End();
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}
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else
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{
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float radius=rci->radius;
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if(radius>rci->scope.GetWidth()/2.0f)radius=rci->scope.GetWidth()/2.0f;
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if(radius>rci->scope.GetHeight()/2.0f)radius=rci->scope.GetHeight()/2.0f;
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vertex=new VB2f(rci->round_per*4);
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vertex->Begin();
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vec2<float> *coord=new vec2<float>[rci->round_per];
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for(uint i=0;i<rci->round_per;i++)
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{
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float ang=float(i)/float(rci->round_per-1)*90.0f;
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float x=sin(hgl_ang2rad(ang))*radius;
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float y=cos(hgl_ang2rad(ang))*radius;
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coord[i].x=x;
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coord[i].y=y;
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//右上角
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vertex->Write( rci->scope.GetRight()-radius+x,
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rci->scope.GetTop()+radius-y);
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}
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//右下角
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for(uint i=0;i<rci->round_per;i++)
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{
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vertex->Write(rci->scope.GetRight() -radius+coord[rci->round_per-1-i].x,
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rci->scope.GetBottom()-radius+coord[rci->round_per-1-i].y);
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}
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//左下角
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for(uint i=0;i<rci->round_per;i++)
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{
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vertex->Write(rci->scope.GetLeft() +radius-coord[i].x,
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rci->scope.GetBottom()-radius+coord[i].y);
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}
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//左上角
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for(uint i=0;i<rci->round_per;i++)
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{
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vertex->Write(rci->scope.GetLeft() +radius-coord[rci->round_per-1-i].x,
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rci->scope.GetTop() +radius-coord[rci->round_per-1-i].y);
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}
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delete[] coord;
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vertex->End();
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}
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render_obj=mtl->CreateRenderable(vertex->GetCount());
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render_obj->Set(vertex_binding,device->CreateVBO(vertex));
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delete vertex;
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return render_obj;
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}
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}//namespace graph
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}//namespace hgl
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