Mingw-64/Mingw-32 Directx run-time issues

GGen
2012-05-22
2013-06-06
  • GGen
    GGen
    2012-05-22

    I have a small problem while trying to test a very simple direct-x application even though it compiles using Mingw-64( with direct-x 64bit libraries ) and Mingw-32 the application will crash or simply not work at all ( no error message, just a black screen ). The applications compiles and works as intended on MinGw ( using gcc 4.6.2 ) and VS2010.

     
  • rubenvb
    rubenvb
    2012-05-22

    We need more info, best would be a small compilable code sample reproducing the problem. If that's not possible, at least the full code that exhibits the problem.

     
  • GGen
    GGen
    2012-05-22

    Here is the sample code, the end result should be a blue background window, what it actually happens just the black terminal window or the program will crash. ( i took the code from http://www.directxtutorial.com/tutorial9/b-direct3dbasics/dx9b1.aspx ). this happens with any direct-x application that i try to compile (while working with mingw)

    // include the basic windows header files and the Direct3D header file
    #include <windows.h>
    #include <windowsx.h>
    #include <d3d9.h>
    // global declarations
    LPDIRECT3D9 d3d;    // the pointer to our Direct3D interface
    LPDIRECT3DDEVICE9 d3ddev;    // the pointer to the device class
    // function prototypes
    void initD3D(HWND hWnd);    // sets up and initializes Direct3D
    void render_frame(void);    // renders a single frame
    void cleanD3D(void);    // closes Direct3D and releases memory
    // the WindowProc function prototype
    LRESULT CALLBACK WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
    // the entry point for any Windows program
    int WINAPI WinMain(HINSTANCE hInstance,
                       HINSTANCE hPrevInstance,
                       LPSTR lpCmdLine,
                       int nCmdShow)
    {
        HWND hWnd;
        WNDCLASSEX wc;
        ZeroMemory(&wc, sizeof(WNDCLASSEX));
        wc.cbSize = sizeof(WNDCLASSEX);
        wc.style = CS_HREDRAW | CS_VREDRAW;
        wc.lpfnWndProc = WindowProc;
        wc.hInstance = hInstance;
        wc.hCursor = LoadCursor(NULL, IDC_ARROW);
        wc.hbrBackground = (HBRUSH)COLOR_WINDOW;
        wc.lpszClassName = "WindowClass";
        RegisterClassEx(&wc);
        hWnd = CreateWindowEx(NULL,
                              "WindowClass",
                              "Our First Direct3D Program",
                              WS_OVERLAPPEDWINDOW,
                              300, 300,
                              800, 600,
                              NULL,
                              NULL,
                              hInstance,
                              NULL);
        ShowWindow(hWnd, nCmdShow);
        // set up and initialize Direct3D
        initD3D(hWnd);
        // enter the main loop:
        MSG msg;
        while(TRUE)
        {
            while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
            {
                TranslateMessage(&msg);
                DispatchMessage(&msg);
            }
            if(msg.message == WM_QUIT)
                break;
            render_frame();
        }
        // clean up DirectX and COM
        cleanD3D();
        return msg.wParam;
    }
    // this is the main message handler for the program
    LRESULT CALLBACK WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
    {
        switch(message)
        {
            case WM_DESTROY:
                {
                    PostQuitMessage(0);
                    return 0;
                } break;
        }
        return DefWindowProc (hWnd, message, wParam, lParam);
    }
    // this function initializes and prepares Direct3D for use
    void initD3D(HWND hWnd)
    {
        d3d = Direct3DCreate9(D3D_SDK_VERSION);    // create the Direct3D interface
        D3DPRESENT_PARAMETERS d3dpp;    // create a struct to hold various device information
        ZeroMemory(&d3dpp, sizeof(d3dpp));    // clear out the struct for use
        d3dpp.Windowed = TRUE;    // program windowed, not fullscreen
        d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;    // discard old frames
        d3dpp.hDeviceWindow = hWnd;    // set the window to be used by Direct3D
        // create a device class using this information and the info from the d3dpp stuct
        d3d->CreateDevice(D3DADAPTER_DEFAULT,
                          D3DDEVTYPE_HAL,
                          hWnd,
                          D3DCREATE_SOFTWARE_VERTEXPROCESSING,
                          &d3dpp,
                          &d3ddev);
    }
    // this is the function used to render a single frame
    void render_frame(void)
    {
        // clear the window to a deep blue
        d3ddev->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0, 40, 100), 1.0f, 0);
        d3ddev->BeginScene();    // begins the 3D scene
        // do 3D rendering on the back buffer here
        d3ddev->EndScene();    // ends the 3D scene
        d3ddev->Present(NULL, NULL, NULL, NULL);   // displays the created frame on the screen
    }
    // this is the function that cleans up Direct3D and COM
    void cleanD3D(void)
    {
        d3ddev->Release();    // close and release the 3D device
        d3d->Release();    // close and release Direct3D
    }
    
     
  • GGen
    GGen
    2012-05-22

    just realized that I'm using the 4.7.0 experimental version, I should probably test this under a stable version. I will post the results later tonight. thanks.

     
  • Kai Tietz
    Kai Tietz
    2012-05-22

    Well, I compiled your code with my mingw-w64 toolchain using cmd 'x86_64-w64-mingw32-gcc -o t.exe t_dx.C -ld3d9 -mwindows -O2'.  I get by compiling this code the following warning:

    t_dx.C: In function 'int WinMain(HINSTANCE, HINSTANCE, LPSTR, int)':
    t_dx.C:50:30: warning: passing NULL to non-pointer argument 1 of 'HWND__* Create
    WindowExA(DWORD, LPCSTR, LPCSTR, DWORD, int, int, int, int, HWND, HMENU, HINSTANCE, LPVOID)' [-Wconversion-null]
                              NULL);
    

    And the generated application works without any issues.  So question here is what gcc version and what mingw-w64 version you are using?

    Regards,
    Kai

     
  • rubenvb
    rubenvb
    2012-05-22

    I can compile and see the expected result when I compile this with

    g++ main.cpp -ld3d9 -mwindows -o test.exe

    with both my i686 and x86_64  GCC 4.7.0 compiler. I tested this on Windows 7 x64. I do get a hang when I omit the "-mwindows". Did you forget to add this?

     
  • GGen
    GGen
    2012-05-22

    oh i did forget to add -mwindows :( thanks a lot guys for the help!

     
  • Kai Tietz
    Kai Tietz
    2012-05-22

    No, I didn't missed the -mwindows option.   The issue is that hInstance and nCmdShow values are passed to WinMain  wrong in our startup for console-mode.

    By replacing hInstance in WinMain by '(HINSTANCE) &__ImageBase'. (don't miss to prototype __ImageBase as 'extern char __ImageBase;') and replace use of nCmdShow variable by SW_SHOWDEFAULT, console mode works, too.

     
  • Kai Tietz
    Kai Tietz
    2012-05-22

    Issue fixed on trunk rev 5047-5048