Question

尝试检索directX的效果文件时遇到问题。如果我不包含D3DX10CreateEffectFromFile（）方法，则应用程序将正确编译。如果我确实包含它。我收到以下错误

1>GXDX.obj : error LNK2019: unresolved external symbol _D3DX10CreateEffectFromFileW@48 referenced in function "public: virtual void __thiscall GXDX::StartUp(struct HWND__ * *,int,int)" (?StartUp@GXDX@@UAEXPAPAUHWND__@@HH@Z)
1>C:\Users\numerical25\Desktop\Intro ToDirectX\GODFILES\GXRenderManager\GXRenderManager\Debug\GXRenderManager.exe : fatal error LNK1120: 1 unresolved externals

我的第一个想法是，它可能没有正确链接directx库。但我发现，因为我包括lib文件，我正在使用其他方法没有问题。下面是我的代码。

头文件

#ifndef GXDX_
#define GXDX_

#include "GXRenderer.h"
#include <d3d10.h>
#include <d3dx10.h>
#include "GXExceptions.h"


#pragma comment (lib, "d3d10.lib")
#pragma comment (lib, "d3dx10.lib")

class GXDX: public GXRenderer {
protected:
    ID3D10Device* gm_dxDevice;
    IDXGISwapChain* gm_swapChain;
    ID3D10RenderTargetView* gm_renderTargetView;
    ID3D10Effect *gm_shader;
    ID3D10EffectTechnique *gm_tech;
public:
    void CleanUp();
    void StartUp(HWND* window,int w, int h);
    void SetupScene();
    void DisplayScene();
    void LoadMesh(GXVector*,UINT*);
    void DrawText(LPSTR);
};

#endif

以下是实施

void GXDX::StartUp(HWND* mainWindow,int w, int h)
{
    width = w;
    height = h;
    this->m_mainWindow = mainWindow;

    //Get size of window
    RECT rectangle;
    GetClientRect(*m_mainWindow,&rectangle);

    ID3D10Texture2D *backBufferSurface;

    DXGI_SWAP_CHAIN_DESC swapChainDesc;

    SecureZeroMemory(&swapChainDesc, sizeof(swapChainDesc));

    swapChainDesc.BufferCount = 2;
    swapChainDesc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
    swapChainDesc.BufferDesc.RefreshRate.Numerator = 60;
    swapChainDesc.BufferDesc.RefreshRate.Denominator = 1;
    swapChainDesc.BufferDesc.Width = width;
    swapChainDesc.BufferDesc.Height = height;
    swapChainDesc.SampleDesc.Count = 1;
    swapChainDesc.SampleDesc.Quality = 0;
    swapChainDesc.OutputWindow = *mainWindow;
    swapChainDesc.Windowed = TRUE;
    swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT; 

    D3D10_DRIVER_TYPE driverType = D3D10_DRIVER_TYPE_HARDWARE;

    HRESULT hr = D3D10CreateDeviceAndSwapChain(NULL,driverType,NULL,0,
        D3D10_SDK_VERSION, &swapChainDesc,&gm_swapChain,&gm_dxDevice);

    if(FAILED(hr))
        throw GXVideoException(L"Problems retrieving directX device");

    hr = gm_swapChain->GetBuffer(0,__uuidof(ID3D10Texture2D), (LPVOID*)&backBufferSurface);

    if(FAILED(hr))
        throw GXVideoException(L"Failure to retrieve buffer from swap chain");

    hr = gm_dxDevice->CreateRenderTargetView(backBufferSurface, NULL,&gm_renderTargetView); 
    backBufferSurface->Release();

    if(FAILED(hr))
        throw GXVideoException(L"Failure to create Render Target View");


    //In the future, you might want to change this to something that allows multiple views
    //Like for an editor
    gm_dxDevice->OMSetRenderTargets(1, &gm_renderTargetView, NULL);

    UINT rectangle_width = rectangle.right - rectangle.left;
    UINT rectangle_height = rectangle.bottom - rectangle.top;

    D3D10_VIEWPORT viewport;

    viewport.TopLeftX = 0; 
    viewport.TopLeftY = 0;
    viewport.Width = rectangle_width;
    viewport.Height = rectangle_height;
    viewport.MinDepth = 0.0f;
    viewport.MaxDepth = 1.0f;

    //bind viewport
    gm_dxDevice->RSSetViewports(1,&viewport);

    D3D10_INPUT_ELEMENT_DESC layout[] = 
    {
        {"POSITION", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, 0, D3D10_INPUT_PER_VERTEX_DATA},
    };


    hr = D3DX10CreateEffectFromFile(L"shader.fx", NULL, NULL,
        "fx_4_0",D3D10_SHADER_DEBUG,0,gm_dxDevice,NULL,NULL, &gm_shader,NULL,NULL);// Error here and dont know why

}

Answer 1

喜欢链接器错误。我目前大多使用DX9，但我记得DX11开沟效果（但仍然可以使用）。但是，DX10应该仍然拥有它们。通过d3dx10async.h查看显示CompileEffectFromFile仍在那里（2010年6月sdk）。我注意到D3DX10CompileEffectFromFile在MSDN中被列为已弃用，其中D3DX10CompileFromFile是其替代品。仔细检查您的库链接并尝试给D3DX10CompileFromFile函数一个镜头（虽然理论上如果CompileEffect func仍然完全存在并且库正确链接它应该工作）。

Answer 2

我想问题是我在解决方案选项区域中没有提供附加lib目录中提供的lib路径。我应该知道，但它让我失望，因为我在此问题之前调用的任何其他方法都运行良好。

链接器问题调用D3DX10CreateEffectFromFile（）方法

头文件

2 个答案: