crashy crashy

hw3d/App.cpp

@@ -23,5 +23,6 @@ void App::DoFrame()
 {
 	const float c = sin( timer.Peek() ) / 2.0f + 0.5f;
 	wnd.Gfx().ClearBuffer( c,c,1.0f );
+	wnd.Gfx().DrawTestTriangle();
 	wnd.Gfx().EndFrame();
 }
\ No newline at end of file

hw3d/Graphics.cpp

@@ -94,6 +94,44 @@ void Graphics::ClearBuffer( float red,float green,float blue ) noexcept
 	pContext->ClearRenderTargetView( pTarget.Get(),color );
 }
 
+void Graphics::DrawTestTriangle()
+{
+	namespace wrl = Microsoft::WRL;
+	HRESULT hr;
+
+	struct Vertex
+	{
+		float x;
+		float y;
+	};
+
+	// create vertex buffer (1 2d triangle at center of screen)
+	const Vertex vertices[] =
+	{
+		{ 0.0f,0.5f },
+		{ 0.5f,-0.5f },
+		{ -0.5f,-0.5f },
+	};
+	wrl::ComPtr<ID3D11Buffer> pVertexBuffer;
+	D3D11_BUFFER_DESC bd = {};
+	bd.BindFlags = D3D11_BIND_VERTEX_BUFFER;
+	bd.Usage = D3D11_USAGE_DEFAULT;
+	bd.CPUAccessFlags = 0u;
+	bd.MiscFlags = 0u;
+	bd.ByteWidth = sizeof( vertices );
+	bd.StructureByteStride = sizeof( Vertex );
+	D3D11_SUBRESOURCE_DATA sd = {};
+	sd.pSysMem = vertices;
+	GFX_THROW_INFO( pDevice->CreateBuffer( &bd,&sd,&pVertexBuffer ) );
+
+	// Bind vertex buffer to pipeline
+	const UINT stride = sizeof( Vertex );
+	const UINT offset = 0u;
+	pContext->IASetVertexBuffers( 0u,1u,&pVertexBuffer,&stride,&offset );
+
+	pContext->Draw( 3u,0u );
+}
+
 
 // Graphics exception stuff
 Graphics::HrException::HrException( int line,const char * file,HRESULT hr,std::vector<std::string> infoMsgs ) noexcept

hw3d/Graphics.h

@@ -42,6 +42,7 @@ public:
 	~Graphics() = default;
 	void EndFrame();
 	void ClearBuffer( float red,float green,float blue ) noexcept;
+	void DrawTestTriangle();
 private:
 #ifndef NDEBUG
 	DxgiInfoManager infoManager;