mirror of
https://github.com/ncblakely/GiantsTools
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774 lines
22 KiB
C++
774 lines
22 KiB
C++
//--------------------------------------------------------------------------------------
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// File: GeometricPrimitive.cpp
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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//
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// http://go.microsoft.com/fwlink/?LinkId=248929
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//--------------------------------------------------------------------------------------
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#include "pch.h"
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#include "GeometricPrimitive.h"
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#include "BufferHelpers.h"
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#include "CommonStates.h"
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#include "DirectXHelpers.h"
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#include "Effects.h"
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#include "Geometry.h"
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#include "SharedResourcePool.h"
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using namespace DirectX;
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using Microsoft::WRL::ComPtr;
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// Internal GeometricPrimitive implementation class.
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class GeometricPrimitive::Impl
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{
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public:
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Impl() noexcept : mIndexCount(0) {}
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void Initialize(_In_ ID3D11DeviceContext* deviceContext, const VertexCollection& vertices, const IndexCollection& indices);
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void XM_CALLCONV Draw(FXMMATRIX world, CXMMATRIX view, CXMMATRIX projection,
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FXMVECTOR color,
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_In_opt_ ID3D11ShaderResourceView* texture,
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bool wireframe,
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std::function<void()>& setCustomState) const;
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void Draw(_In_ IEffect* effect,
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_In_ ID3D11InputLayout* inputLayout,
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bool alpha, bool wireframe,
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std::function<void()>& setCustomState) const;
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void CreateInputLayout(_In_ IEffect* effect, _Outptr_ ID3D11InputLayout** inputLayout) const;
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private:
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ComPtr<ID3D11Buffer> mVertexBuffer;
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ComPtr<ID3D11Buffer> mIndexBuffer;
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UINT mIndexCount;
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// Only one of these helpers is allocated per D3D device context, even if there are multiple GeometricPrimitive instances.
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class SharedResources
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{
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public:
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SharedResources(_In_ ID3D11DeviceContext* deviceContext);
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void PrepareForRendering(bool alpha, bool wireframe) const;
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ComPtr<ID3D11DeviceContext> mDeviceContext;
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std::unique_ptr<BasicEffect> effect;
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ComPtr<ID3D11InputLayout> inputLayoutTextured;
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ComPtr<ID3D11InputLayout> inputLayoutUntextured;
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std::unique_ptr<CommonStates> stateObjects;
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};
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// Per-device-context data.
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std::shared_ptr<SharedResources> mResources;
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static SharedResourcePool<ID3D11DeviceContext*, SharedResources> sharedResourcesPool;
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};
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// Global pool of per-device-context GeometricPrimitive resources.
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SharedResourcePool<ID3D11DeviceContext*, GeometricPrimitive::Impl::SharedResources> GeometricPrimitive::Impl::sharedResourcesPool;
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// Per-device-context constructor.
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GeometricPrimitive::Impl::SharedResources::SharedResources(_In_ ID3D11DeviceContext* deviceContext)
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: mDeviceContext(deviceContext)
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{
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ComPtr<ID3D11Device> device;
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deviceContext->GetDevice(&device);
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// Create the BasicEffect.
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effect = std::make_unique<BasicEffect>(device.Get());
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effect->EnableDefaultLighting();
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// Create state objects.
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stateObjects = std::make_unique<CommonStates>(device.Get());
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// Create input layouts.
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effect->SetTextureEnabled(true);
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ThrowIfFailed(
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CreateInputLayoutFromEffect<VertexType>(device.Get(), effect.get(), &inputLayoutTextured)
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);
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SetDebugObjectName(inputLayoutTextured.Get(), "DirectXTK:GeometricPrimitive");
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effect->SetTextureEnabled(false);
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ThrowIfFailed(
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CreateInputLayoutFromEffect<VertexType>(device.Get(), effect.get(), &inputLayoutUntextured)
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);
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SetDebugObjectName(inputLayoutUntextured.Get(), "DirectXTK:GeometricPrimitive");
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}
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// Sets up D3D device state ready for drawing a primitive.
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void GeometricPrimitive::Impl::SharedResources::PrepareForRendering(bool alpha, bool wireframe) const
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{
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// Set the blend and depth stencil state.
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ID3D11BlendState* blendState;
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ID3D11DepthStencilState* depthStencilState;
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if (alpha)
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{
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// Alpha blended rendering.
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blendState = stateObjects->AlphaBlend();
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depthStencilState = stateObjects->DepthRead();
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}
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else
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{
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// Opaque rendering.
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blendState = stateObjects->Opaque();
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depthStencilState = stateObjects->DepthDefault();
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}
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mDeviceContext->OMSetBlendState(blendState, nullptr, 0xFFFFFFFF);
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mDeviceContext->OMSetDepthStencilState(depthStencilState, 0);
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// Set the rasterizer state.
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if (wireframe)
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mDeviceContext->RSSetState(stateObjects->Wireframe());
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else
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mDeviceContext->RSSetState(stateObjects->CullCounterClockwise());
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ID3D11SamplerState* samplerState = stateObjects->LinearWrap();
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mDeviceContext->PSSetSamplers(0, 1, &samplerState);
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}
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// Initializes a geometric primitive instance that will draw the specified vertex and index data.
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_Use_decl_annotations_
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void GeometricPrimitive::Impl::Initialize(ID3D11DeviceContext* deviceContext, const VertexCollection& vertices, const IndexCollection& indices)
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{
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if (vertices.size() >= USHRT_MAX)
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throw std::exception("Too many vertices for 16-bit index buffer");
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if (indices.size() > UINT32_MAX)
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throw std::exception("Too many indices");
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mResources = sharedResourcesPool.DemandCreate(deviceContext);
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ComPtr<ID3D11Device> device;
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deviceContext->GetDevice(&device);
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ThrowIfFailed(
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CreateStaticBuffer(device.Get(), vertices, D3D11_BIND_VERTEX_BUFFER, mVertexBuffer.ReleaseAndGetAddressOf())
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);
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ThrowIfFailed(
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CreateStaticBuffer(device.Get(), indices, D3D11_BIND_INDEX_BUFFER, mIndexBuffer.ReleaseAndGetAddressOf())
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);
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SetDebugObjectName(mVertexBuffer.Get(), "DirectXTK:GeometricPrimitive");
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SetDebugObjectName(mIndexBuffer.Get(), "DirectXTK:GeometricPrimitive");
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mIndexCount = static_cast<UINT>(indices.size());
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}
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// Draws the primitive.
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_Use_decl_annotations_
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void XM_CALLCONV GeometricPrimitive::Impl::Draw(
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FXMMATRIX world,
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CXMMATRIX view,
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CXMMATRIX projection,
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FXMVECTOR color,
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ID3D11ShaderResourceView* texture,
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bool wireframe,
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std::function<void()>& setCustomState) const
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{
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assert(mResources);
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auto effect = mResources->effect.get();
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assert(effect != nullptr);
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ID3D11InputLayout *inputLayout;
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if (texture)
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{
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effect->SetTextureEnabled(true);
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effect->SetTexture(texture);
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inputLayout = mResources->inputLayoutTextured.Get();
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}
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else
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{
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effect->SetTextureEnabled(false);
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inputLayout = mResources->inputLayoutUntextured.Get();
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}
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// Set effect parameters.
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effect->SetMatrices(world, view, projection);
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effect->SetColorAndAlpha(color);
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float alpha = XMVectorGetW(color);
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Draw(effect, inputLayout, (alpha < 1.f), wireframe, setCustomState);
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}
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// Draw the primitive using a custom effect.
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_Use_decl_annotations_
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void GeometricPrimitive::Impl::Draw(
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IEffect* effect,
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ID3D11InputLayout* inputLayout,
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bool alpha,
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bool wireframe,
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std::function<void()>& setCustomState) const
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{
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assert(mResources);
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auto deviceContext = mResources->mDeviceContext.Get();
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assert(deviceContext != nullptr);
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// Set state objects.
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mResources->PrepareForRendering(alpha, wireframe);
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// Set input layout.
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assert(inputLayout != nullptr);
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deviceContext->IASetInputLayout(inputLayout);
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// Activate our shaders, constant buffers, texture, etc.
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assert(effect != nullptr);
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effect->Apply(deviceContext);
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// Set the vertex and index buffer.
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auto vertexBuffer = mVertexBuffer.Get();
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UINT vertexStride = sizeof(VertexType);
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UINT vertexOffset = 0;
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deviceContext->IASetVertexBuffers(0, 1, &vertexBuffer, &vertexStride, &vertexOffset);
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deviceContext->IASetIndexBuffer(mIndexBuffer.Get(), DXGI_FORMAT_R16_UINT, 0);
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// Hook lets the caller replace our shaders or state settings with whatever else they see fit.
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if (setCustomState)
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{
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setCustomState();
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}
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// Draw the primitive.
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deviceContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
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deviceContext->DrawIndexed(mIndexCount, 0, 0);
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}
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// Create input layout for drawing with a custom effect.
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_Use_decl_annotations_
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void GeometricPrimitive::Impl::CreateInputLayout(IEffect* effect, ID3D11InputLayout** inputLayout) const
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{
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assert(effect != nullptr);
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assert(inputLayout != nullptr);
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assert(mResources);
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auto deviceContext = mResources->mDeviceContext.Get();
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assert(deviceContext != nullptr);
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ComPtr<ID3D11Device> device;
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deviceContext->GetDevice(&device);
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ThrowIfFailed(
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CreateInputLayoutFromEffect<VertexType>(device.Get(), effect, inputLayout)
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);
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assert(inputLayout != nullptr && *inputLayout != nullptr);
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_Analysis_assume_(inputLayout != nullptr && *inputLayout != nullptr);
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SetDebugObjectName(*inputLayout, "DirectXTK:GeometricPrimitive");
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}
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//--------------------------------------------------------------------------------------
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// GeometricPrimitive
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//--------------------------------------------------------------------------------------
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// Constructor.
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GeometricPrimitive::GeometricPrimitive() noexcept(false)
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: pImpl(std::make_unique<Impl>())
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{
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}
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// Destructor.
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GeometricPrimitive::~GeometricPrimitive()
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{
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}
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// Public entrypoints.
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_Use_decl_annotations_
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void XM_CALLCONV GeometricPrimitive::Draw(
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FXMMATRIX world,
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CXMMATRIX view,
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CXMMATRIX projection,
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FXMVECTOR color,
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ID3D11ShaderResourceView* texture,
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bool wireframe,
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std::function<void()> setCustomState) const
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{
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pImpl->Draw(world, view, projection, color, texture, wireframe, setCustomState);
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}
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_Use_decl_annotations_
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void GeometricPrimitive::Draw(
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IEffect* effect,
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ID3D11InputLayout* inputLayout,
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bool alpha,
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bool wireframe,
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std::function<void()> setCustomState) const
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{
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pImpl->Draw(effect, inputLayout, alpha, wireframe, setCustomState);
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}
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_Use_decl_annotations_
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void GeometricPrimitive::CreateInputLayout(IEffect* effect, ID3D11InputLayout** inputLayout) const
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{
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pImpl->CreateInputLayout(effect, inputLayout);
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}
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//--------------------------------------------------------------------------------------
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// Cube (aka a Hexahedron) or Box
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//--------------------------------------------------------------------------------------
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_Use_decl_annotations_
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std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateCube(
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ID3D11DeviceContext* deviceContext,
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float size,
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bool rhcoords)
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{
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VertexCollection vertices;
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IndexCollection indices;
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ComputeBox(vertices, indices, XMFLOAT3(size, size, size), rhcoords, false);
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// Create the primitive object.
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std::unique_ptr<GeometricPrimitive> primitive(new GeometricPrimitive());
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primitive->pImpl->Initialize(deviceContext, vertices, indices);
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return primitive;
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}
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void GeometricPrimitive::CreateCube(
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std::vector<VertexType>& vertices,
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std::vector<uint16_t>& indices,
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float size,
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bool rhcoords)
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{
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ComputeBox(vertices, indices, XMFLOAT3(size, size, size), rhcoords, false);
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}
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// Creates a box primitive.
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_Use_decl_annotations_
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std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateBox(
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ID3D11DeviceContext* deviceContext,
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const XMFLOAT3& size,
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bool rhcoords,
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bool invertn)
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{
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VertexCollection vertices;
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IndexCollection indices;
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ComputeBox(vertices, indices, size, rhcoords, invertn);
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// Create the primitive object.
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std::unique_ptr<GeometricPrimitive> primitive(new GeometricPrimitive());
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primitive->pImpl->Initialize(deviceContext, vertices, indices);
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return primitive;
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}
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void GeometricPrimitive::CreateBox(
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std::vector<VertexType>& vertices,
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std::vector<uint16_t>& indices,
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const XMFLOAT3& size,
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bool rhcoords,
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bool invertn)
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{
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ComputeBox(vertices, indices, size, rhcoords, invertn);
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}
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//--------------------------------------------------------------------------------------
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// Sphere
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//--------------------------------------------------------------------------------------
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_Use_decl_annotations_
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std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateSphere(
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ID3D11DeviceContext* deviceContext,
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float diameter,
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size_t tessellation,
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bool rhcoords,
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bool invertn)
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{
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VertexCollection vertices;
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IndexCollection indices;
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ComputeSphere(vertices, indices, diameter, tessellation, rhcoords, invertn);
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// Create the primitive object.
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std::unique_ptr<GeometricPrimitive> primitive(new GeometricPrimitive());
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primitive->pImpl->Initialize(deviceContext, vertices, indices);
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return primitive;
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}
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void GeometricPrimitive::CreateSphere(
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std::vector<VertexType>& vertices,
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std::vector<uint16_t>& indices,
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float diameter,
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size_t tessellation,
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bool rhcoords,
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bool invertn)
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{
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ComputeSphere(vertices, indices, diameter, tessellation, rhcoords, invertn);
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}
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//--------------------------------------------------------------------------------------
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// Geodesic sphere
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//--------------------------------------------------------------------------------------
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_Use_decl_annotations_
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std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateGeoSphere(
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ID3D11DeviceContext* deviceContext,
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float diameter,
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size_t tessellation,
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bool rhcoords)
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{
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VertexCollection vertices;
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IndexCollection indices;
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ComputeGeoSphere(vertices, indices, diameter, tessellation, rhcoords);
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// Create the primitive object.
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std::unique_ptr<GeometricPrimitive> primitive(new GeometricPrimitive());
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primitive->pImpl->Initialize(deviceContext, vertices, indices);
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return primitive;
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}
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void GeometricPrimitive::CreateGeoSphere(
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std::vector<VertexType>& vertices,
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std::vector<uint16_t>& indices,
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float diameter,
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size_t tessellation, bool rhcoords)
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{
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ComputeGeoSphere(vertices, indices, diameter, tessellation, rhcoords);
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}
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//--------------------------------------------------------------------------------------
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// Cylinder / Cone
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//--------------------------------------------------------------------------------------
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// Creates a cylinder primitive.
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_Use_decl_annotations_
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std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateCylinder(
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ID3D11DeviceContext* deviceContext,
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float height,
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float diameter,
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size_t tessellation,
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bool rhcoords)
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{
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VertexCollection vertices;
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IndexCollection indices;
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ComputeCylinder(vertices, indices, height, diameter, tessellation, rhcoords);
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// Create the primitive object.
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std::unique_ptr<GeometricPrimitive> primitive(new GeometricPrimitive());
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primitive->pImpl->Initialize(deviceContext, vertices, indices);
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return primitive;
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}
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void GeometricPrimitive::CreateCylinder(
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std::vector<VertexType>& vertices,
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std::vector<uint16_t>& indices,
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float height,
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float diameter,
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size_t tessellation,
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bool rhcoords)
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{
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ComputeCylinder(vertices, indices, height, diameter, tessellation, rhcoords);
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}
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// Creates a cone primitive.
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_Use_decl_annotations_
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std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateCone(
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ID3D11DeviceContext* deviceContext,
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float diameter,
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float height,
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size_t tessellation,
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bool rhcoords)
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{
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VertexCollection vertices;
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IndexCollection indices;
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ComputeCone(vertices, indices, diameter, height, tessellation, rhcoords);
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// Create the primitive object.
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std::unique_ptr<GeometricPrimitive> primitive(new GeometricPrimitive());
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primitive->pImpl->Initialize(deviceContext, vertices, indices);
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return primitive;
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}
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void GeometricPrimitive::CreateCone(
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std::vector<VertexType>& vertices,
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std::vector<uint16_t>& indices,
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float diameter,
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float height,
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size_t tessellation,
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bool rhcoords)
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{
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ComputeCone(vertices, indices, diameter, height, tessellation, rhcoords);
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}
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//--------------------------------------------------------------------------------------
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// Torus
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//--------------------------------------------------------------------------------------
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_Use_decl_annotations_
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std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateTorus(
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ID3D11DeviceContext* deviceContext,
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float diameter,
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float thickness,
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size_t tessellation,
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bool rhcoords)
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{
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VertexCollection vertices;
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IndexCollection indices;
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ComputeTorus(vertices, indices, diameter, thickness, tessellation, rhcoords);
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// Create the primitive object.
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std::unique_ptr<GeometricPrimitive> primitive(new GeometricPrimitive());
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primitive->pImpl->Initialize(deviceContext, vertices, indices);
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return primitive;
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}
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void GeometricPrimitive::CreateTorus(
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std::vector<VertexType>& vertices,
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std::vector<uint16_t>& indices,
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float diameter,
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float thickness,
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size_t tessellation,
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bool rhcoords)
|
|
{
|
|
ComputeTorus(vertices, indices, diameter, thickness, tessellation, rhcoords);
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------------------------
|
|
// Tetrahedron
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
_Use_decl_annotations_
|
|
std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateTetrahedron(
|
|
ID3D11DeviceContext* deviceContext,
|
|
float size,
|
|
bool rhcoords)
|
|
{
|
|
VertexCollection vertices;
|
|
IndexCollection indices;
|
|
ComputeTetrahedron(vertices, indices, size, rhcoords);
|
|
|
|
// Create the primitive object.
|
|
std::unique_ptr<GeometricPrimitive> primitive(new GeometricPrimitive());
|
|
|
|
primitive->pImpl->Initialize(deviceContext, vertices, indices);
|
|
|
|
return primitive;
|
|
}
|
|
|
|
void GeometricPrimitive::CreateTetrahedron(
|
|
std::vector<VertexType>& vertices,
|
|
std::vector<uint16_t>& indices,
|
|
float size,
|
|
bool rhcoords)
|
|
{
|
|
ComputeTetrahedron(vertices, indices, size, rhcoords);
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------------------------
|
|
// Octahedron
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
_Use_decl_annotations_
|
|
std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateOctahedron(
|
|
ID3D11DeviceContext* deviceContext,
|
|
float size,
|
|
bool rhcoords)
|
|
{
|
|
VertexCollection vertices;
|
|
IndexCollection indices;
|
|
ComputeOctahedron(vertices, indices, size, rhcoords);
|
|
|
|
// Create the primitive object.
|
|
std::unique_ptr<GeometricPrimitive> primitive(new GeometricPrimitive());
|
|
|
|
primitive->pImpl->Initialize(deviceContext, vertices, indices);
|
|
|
|
return primitive;
|
|
}
|
|
|
|
void GeometricPrimitive::CreateOctahedron(
|
|
std::vector<VertexType>& vertices,
|
|
std::vector<uint16_t>& indices,
|
|
float size,
|
|
bool rhcoords)
|
|
{
|
|
ComputeOctahedron(vertices, indices, size, rhcoords);
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------------------------
|
|
// Dodecahedron
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
_Use_decl_annotations_
|
|
std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateDodecahedron(
|
|
ID3D11DeviceContext* deviceContext,
|
|
float size,
|
|
bool rhcoords)
|
|
{
|
|
VertexCollection vertices;
|
|
IndexCollection indices;
|
|
ComputeDodecahedron(vertices, indices, size, rhcoords);
|
|
|
|
// Create the primitive object.
|
|
std::unique_ptr<GeometricPrimitive> primitive(new GeometricPrimitive());
|
|
|
|
primitive->pImpl->Initialize(deviceContext, vertices, indices);
|
|
|
|
return primitive;
|
|
}
|
|
|
|
void GeometricPrimitive::CreateDodecahedron(
|
|
std::vector<VertexType>& vertices,
|
|
std::vector<uint16_t>& indices,
|
|
float size,
|
|
bool rhcoords)
|
|
{
|
|
ComputeDodecahedron(vertices, indices, size, rhcoords);
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------------------------
|
|
// Icosahedron
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
_Use_decl_annotations_
|
|
std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateIcosahedron(
|
|
ID3D11DeviceContext* deviceContext,
|
|
float size,
|
|
bool rhcoords)
|
|
{
|
|
VertexCollection vertices;
|
|
IndexCollection indices;
|
|
ComputeIcosahedron(vertices, indices, size, rhcoords);
|
|
|
|
// Create the primitive object.
|
|
std::unique_ptr<GeometricPrimitive> primitive(new GeometricPrimitive());
|
|
|
|
primitive->pImpl->Initialize(deviceContext, vertices, indices);
|
|
|
|
return primitive;
|
|
}
|
|
|
|
void GeometricPrimitive::CreateIcosahedron(
|
|
std::vector<VertexType>& vertices,
|
|
std::vector<uint16_t>& indices,
|
|
float size,
|
|
bool rhcoords)
|
|
{
|
|
ComputeIcosahedron(vertices, indices, size, rhcoords);
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------------------------
|
|
// Teapot
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
_Use_decl_annotations_
|
|
std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateTeapot(
|
|
ID3D11DeviceContext* deviceContext,
|
|
float size,
|
|
size_t tessellation,
|
|
bool rhcoords)
|
|
{
|
|
VertexCollection vertices;
|
|
IndexCollection indices;
|
|
ComputeTeapot(vertices, indices, size, tessellation, rhcoords);
|
|
|
|
// Create the primitive object.
|
|
std::unique_ptr<GeometricPrimitive> primitive(new GeometricPrimitive());
|
|
|
|
primitive->pImpl->Initialize(deviceContext, vertices, indices);
|
|
|
|
return primitive;
|
|
}
|
|
|
|
void GeometricPrimitive::CreateTeapot(
|
|
std::vector<VertexType>& vertices,
|
|
std::vector<uint16_t>& indices,
|
|
float size,
|
|
size_t tessellation,
|
|
bool rhcoords)
|
|
{
|
|
ComputeTeapot(vertices, indices, size, tessellation, rhcoords);
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------------------------
|
|
// Custom
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
_Use_decl_annotations_
|
|
std::unique_ptr<GeometricPrimitive> GeometricPrimitive::CreateCustom(
|
|
ID3D11DeviceContext* deviceContext,
|
|
const std::vector<VertexType>& vertices,
|
|
const std::vector<uint16_t>& indices)
|
|
{
|
|
// Extra validation
|
|
if (vertices.empty() || indices.empty())
|
|
throw std::exception("Requires both vertices and indices");
|
|
|
|
if (indices.size() % 3)
|
|
throw std::exception("Expected triangular faces");
|
|
|
|
size_t nVerts = vertices.size();
|
|
if (nVerts >= USHRT_MAX)
|
|
throw std::exception("Too many vertices for 16-bit index buffer");
|
|
|
|
for (auto it = indices.cbegin(); it != indices.cend(); ++it)
|
|
{
|
|
if (*it >= nVerts)
|
|
{
|
|
throw std::exception("Index not in vertices list");
|
|
}
|
|
}
|
|
|
|
// Create the primitive object.
|
|
std::unique_ptr<GeometricPrimitive> primitive(new GeometricPrimitive());
|
|
|
|
primitive->pImpl->Initialize(deviceContext, vertices, indices);
|
|
|
|
return primitive;
|
|
}
|