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程式語言 - Wine - C/C++ - OpenGL 1.0 - Translate Position

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參考資訊：
https://www.winehq.org/
https://github.com/gamedev-net/nehe-opengl
https://wiki.winehq.org/Winelib_User%27s_Guide

main.c

#include <math.h>
#include <stdbool.h>
#include <windows.h>
#include <GL/gl.h>
#include <GL/glu.h>
 
#define W 320
#define H 240
 
static HDC hDC = NULL;
static HGLRC hRC = NULL;
static WNDPROC defWndProc = NULL;

static LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uMsg) {
    case WM_CLOSE:
        wglMakeCurrent(NULL, NULL);
        wglDeleteContext(hRC);
        ReleaseDC(hWnd, hDC);
        DestroyWindow(hWnd);
        DestroyWindow(hWnd);
        return 0;
    case WM_DESTROY:
        PostQuitMessage(0);
        return 0;
    }
    return CallWindowProc(defWndProc, hWnd, uMsg, wParam, lParam);
}
  
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    HWND hWnd = NULL;
    GLuint fmt = 0;
    PIXELFORMATDESCRIPTOR pfd = { 0 };
    GLdouble nearPlane = 0.1;
    GLdouble farPlane = 100.0;
    GLdouble top = nearPlane * tan(45.0 * 3.14159 / 360.0);
    GLdouble right = top * ((GLfloat)W / (GLfloat)H);

    pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
    pfd.nVersion = 1;
    pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
    pfd.iPixelType = PFD_TYPE_RGBA;
    pfd.cColorBits = 16;
    pfd.cDepthBits = 16;
    pfd.iLayerType = PFD_MAIN_PLANE;
 
    hWnd = CreateWindow(WC_DIALOG,
        "main",
        WS_OVERLAPPEDWINDOW | WS_VISIBLE,
        0,
        0,
        W,
        H,
        NULL,
        NULL,
        NULL,
        NULL
    );
 
    defWndProc = (WNDPROC)SetWindowLongPtr(hWnd, GWLP_WNDPROC, (long int)WndProc);
     
    hDC = GetDC(hWnd);
    fmt = ChoosePixelFormat(hDC, &pfd);
    SetPixelFormat(hDC, fmt, &pfd);
    hRC = wglCreateContext(hDC);
    wglMakeCurrent(hDC, hRC);

    glViewport(0, 0, W, H);
    glMatrixMode(GL_PROJECTION);
    glFrustum(-right, right, -top, top, nearPlane, farPlane);
 
    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();
  
    MSG msg = { 0 };
    while (GetMessage(&msg, NULL, 0, 0)) {
        DispatchMessage(&msg);
 
        glLoadIdentity(); 
        glTranslatef(-1.5f, 0.0f, -10.0f);
        glBegin(GL_TRIANGLES);
            glColor3f(1.0f, 0.0f, 0.0f);
            glVertex3f(0.0f, 1.0f, 0.0f);
            glVertex3f(-1.0f, -1.0f, 0.0f);
            glVertex3f(1.0f, -1.0f, 0.0f);
        glEnd();
     
        glLoadIdentity(); 
        glTranslatef(1.5f, 0.0f, -5.0f);
        glBegin(GL_TRIANGLES);
            glColor3f(1.0f, 0.0f, 0.0f);
            glVertex3f(0.0f, 1.0f, 0.0f);
            glVertex3f(-1.0f, -1.0f, 0.0f);
            glVertex3f(1.0f, -1.0f, 0.0f);
        glEnd();
     
        SwapBuffers(hDC);
    }
 
    ExitProcess(0);
    return 0;
}

編譯、執行

$ winegcc main.c -o main.exe -lGL -lGLU -lgdi32 -lopengl32
$ wine main.exe