WPF & DirectX 11 via D3DImage

AlexErshov · 2012-02-01T11:41:53+00:00

I want to use DirectX 11 from unmanaged C++ code and use WFP for the GUI. SlimDX is not suitable for me. I have found the solution to make working WPF with DirectX 10: WPF & DirectX 10 via D3DImage But I couldn't manage to work it with DirectX 11. Just blank screen with two buttons. Does anybody know how to make WPF working with DirectX 11. Also I had seen that when I'm just running this example the CPU …

I have changed D3D10Scene.h:


 // D3D10Scene.h
 #pragma once
 #include <windows.h>
 // C RunTime Header Files
 #include <stdlib.h>
 #include <stdio.h>
 #include "d3d9.h"
 #include "d3dx9.h"
 #include "D3D10_1.h"
 #include "d3dx10.h"
 #include "d3dx11.h"
 #include "D3D11.h"
 using namespace System;
 struct float3
 {
 float x;
 float y;
 float z;
 float3() {};
 float3(float px, float py, float pz) { x=px;y=py;z=pz; }
 };
 struct Vertex
 {
 float3 pos;
 Vertex(float x, float y, float z) {pos = float3(x,y,z);}
 };
 ID3D11Buffer* VertexBuffer = NULL;
 ID3D11VertexShader* VS = NULL;
 ID3D11PixelShader* PS = NULL;
 ID3D10Blob* VS_Buffer = NULL;
 ID3D10Blob* PS_Buffer = NULL;
 ID3D11InputLayout* vertLayout = NULL;
 D3D11_INPUT_ELEMENT_DESC layout[] =
 {
 { "POSITION", 0, DXGI_FORMAT_B8G8R8A8_UNORM, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
 };
 UINT numElements = ARRAYSIZE(layout);
 IntPtr wpfHWND;
 namespace D3D10Scene
 {
 public ref class D3D10TestScene
 {
 public:
 D3D10TestScene()
 {
 WIDTH = 640;
 HEIGHT = 480;
 count = 0;
 InitializeDirect3d11App();
 InitScene();
 SetViews();
 }
 bool InitializeDirect3d11App()
 {
 HRESULT hr;
 D3D_FEATURE_LEVEL *pFeatureLevel;
 pin_ptr<ID3D11Device*> g_DevicePtr = &g_Device;
 pin_ptr<ID3D11DeviceContext*> g_DeviceContextPtr = &g_DeviceContext;
 hr = D3D11CreateDevice(NULL
 , D3D_DRIVER_TYPE_HARDWARE
 , NULL
 , NULL
 , NULL
 , NULL
 , D3D11_SDK_VERSION
 , g_DevicePtr
 , pFeatureLevel
 , g_DeviceContextPtr);
 if(FAILED(hr))
 {
 MessageBox(NULL, "Error creating Device", "Error", MB_OK | MB_ICONERROR);
 return false;
 }
 return true;
 }
 bool InitScene()
 {
 HRESULT hr;
 D3D11_VIEWPORT viewport;
 ZeroMemory(&viewport, sizeof(D3D11_VIEWPORT));
 viewport.TopLeftX = 0;
 viewport.TopLeftY = 0;
 viewport.Width = WIDTH;
 viewport.Height = HEIGHT;
 g_DeviceContext->RSSetViewports(1, &viewport);
 hr = D3DX11CompileFromFile("Effects.fx", 0, 0, "VS", "vs_4_0", 0, 0, 0, &VS_Buffer, 0, 0);
 if(FAILED(hr))
 {
 MessageBox(NULL, "Error compiling vertex shader", "Error", MB_OK | MB_ICONERROR);
 return false;
 }
 hr = D3DX11CompileFromFile("Effects.fx", 0, 0, "PS", "ps_4_0", 0, 0, 0, &PS_Buffer, 0, 0);
 if(FAILED(hr))
 {
 MessageBox(NULL, "Error compiling pixel shader", "Error", MB_OK | MB_ICONERROR);
 return false;
 }
 hr = g_Device->CreateVertexShader(VS_Buffer->GetBufferPointer(), VS_Buffer->GetBufferSize(), NULL, &VS);
 if(FAILED(hr))
 {
 MessageBox(NULL, "Error creating vertex shader", "Error", MB_OK | MB_ICONERROR);
 return false;
 }
 hr = g_Device->CreatePixelShader(PS_Buffer->GetBufferPointer(), PS_Buffer->GetBufferSize(), NULL, &PS);
 if(FAILED(hr))
 {
 MessageBox(NULL, "Error creating pixel shader", "Error", MB_OK | MB_ICONERROR);
 return false;
 }
 g_DeviceContext->VSSetShader(VS, 0, 0);
 g_DeviceContext->PSSetShader(PS, 0, 0);
 Vertex v[] =
 {
 Vertex( 0.0f, 0.5f, 0.5f ),
 Vertex( 0.5f, -0.5f, 0.5f ),
 Vertex( -0.5f, -0.5f, 0.5f ),
 };
 D3D11_BUFFER_DESC vertexBufferDesc;
 ZeroMemory( &vertexBufferDesc, sizeof(vertexBufferDesc) );
 vertexBufferDesc.Usage = D3D11_USAGE_DEFAULT;
 vertexBufferDesc.ByteWidth = sizeof( Vertex ) * 3;
 vertexBufferDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
 vertexBufferDesc.CPUAccessFlags = 0;
 vertexBufferDesc.MiscFlags = 0;
 D3D11_SUBRESOURCE_DATA vertexBufferData;
 ZeroMemory( &vertexBufferData, sizeof(vertexBufferData) );
 vertexBufferData.pSysMem = v;
 hr = g_Device->CreateBuffer( &vertexBufferDesc, &vertexBufferData, &VertexBuffer);
 if(FAILED(hr))
 {
 MessageBox(NULL, "Error creating buffer", "Error", MB_OK | MB_ICONERROR);
 return false;
 }
 UINT stride = sizeof( Vertex );
 UINT offset = 0;
 g_DeviceContext->IASetVertexBuffers( 0, 1, &VertexBuffer, &stride, &offset );
 g_Device->CreateInputLayout( layout, numElements, VS_Buffer->GetBufferPointer(),
 VS_Buffer->GetBufferSize(), &vertLayout );
 g_DeviceContext->IASetInputLayout( vertLayout );
 g_DeviceContext->IASetPrimitiveTopology( D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST );
 return true;
 }
 IntPtr GetRenderTarget()
 {
 return IntPtr(g_Texture2D11);
 }
 void Render()
 {
 ID3D11RenderTargetView* pRenderTargetView;
 HRESULT hr = S_OK;
 hr = g_Device->CreateRenderTargetView(g_Texture2D11, NULL, &pRenderTargetView);
 g_DeviceContext->OMSetRenderTargets(1, &pRenderTargetView, NULL);
 //g_RenderTargetView = pRenderTargetView;
 float bgColor[4] = {0.0f, 0.0f, 0.0f, 0.0f};
 g_DeviceContext->ClearRenderTargetView(pRenderTargetView, bgColor);
 g_DeviceContext->Draw( 3, 0 );
 //g_SwapChain->Present(0, 0);
 g_DeviceContext->OMSetRenderTargets(0, 0, 0);
 pRenderTargetView->Release();
 g_DeviceContext->Flush();
 //count+=10;
 }
 ID3D11Texture2D* g_Texture2D11;
 ID3D11Device* g_Device;
 ID3D11DeviceContext* g_DeviceContext;
 
 UINT WIDTH;
 UINT HEIGHT;
 int count;
 private:
 HRESULT SetViews()
 {
 ID3D11Texture2D* pTexture = NULL;
 D3D11_TEXTURE2D_DESC Desc;
 Desc.Width = WIDTH;
 Desc.Height = HEIGHT;
 Desc.MipLevels = 1;
 Desc.ArraySize = 1;
 Desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
 Desc.SampleDesc.Count = 1;
 Desc.SampleDesc.Quality = 0;
 Desc.Usage = D3D11_USAGE_DEFAULT;
 Desc.BindFlags = D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE;
 Desc.CPUAccessFlags = 0;
 Desc.MiscFlags = D3D11_RESOURCE_MISC_SHARED;
 HRESULT hr = g_Device->CreateTexture2D(&Desc, NULL, &pTexture);
 g_Texture2D11 = pTexture;
 return S_OK;
 }
 };
 }

File Effects.fx:


 float4 VS(float4 inPos : POSITION) : SV_POSITION
 {
 return inPos;
 }
 float4 PS() : SV_TARGET
 {
 return float4(0.0f, 0.75f, 1.0f, 1.0f);
 }

And Window1.xaml.cs file:
m_d3DImageEx.SetBackBufferEx(D3DResourceTypeEx.ID3D11Texture2D, m_d3D10Scene.GetRenderTarget());

That's all. Now I can see two buttons. But don't see triangle.

Could you please provide your version of code ?

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