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121 lines
2.7 KiB
121 lines
2.7 KiB
#include "ggl.h"
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#include "scene.h"
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#include "utils.h"
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#pragma comment(lib, "opengl32.lib")
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#pragma comment(lib, "glew32.lib")
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unsigned char * LoadFileContent(const char *path, int &filesize) {
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unsigned char*fileContent = nullptr;
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filesize = 0;
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FILE*pFile = fopen(path, "rb");
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if (pFile) {
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fseek(pFile, 0, SEEK_END);
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int nLen = ftell(pFile);
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if (nLen > 0) {
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rewind(pFile);
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fileContent = new unsigned char[nLen + 1];
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fread(fileContent, sizeof(unsigned char), nLen, pFile);
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fileContent[nLen] = '\0';
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filesize = nLen;
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}
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fclose(pFile);
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}
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return fileContent;
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}
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/**
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*消息处理函数
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*/
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LRESULT CALLBACK GLWindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
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{
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switch (msg)
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{
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case WM_CLOSE:
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PostQuitMessage(0);
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return 0;
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}
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return DefWindowProc(hwnd, msg, wParam, lParam);
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}
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INT WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)
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{
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/*注册窗口*/
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WNDCLASSEX wndclass;
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wndclass.cbClsExtra = 0;
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wndclass.cbSize = sizeof(WNDCLASSEX);
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wndclass.cbWndExtra = 0;
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wndclass.hbrBackground = NULL;
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wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
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wndclass.hIcon = NULL;
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wndclass.hIconSm = NULL;
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wndclass.hInstance = hInstance;
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wndclass.lpfnWndProc = GLWindowProc;
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wndclass.lpszClassName = L"GLWindow";
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wndclass.lpszMenuName = NULL;
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wndclass.style = CS_VREDRAW | CS_HREDRAW;
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ATOM atom = RegisterClassEx(&wndclass);
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if (!atom) {
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MessageBox(NULL, L"Register Fail", L"Error", MB_OK);
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return 0;
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}
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/*创建窗口*/
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RECT rect;
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rect.left = 0;
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rect.right = 800;
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rect.top = 0;
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rect.bottom = 600;
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AdjustWindowRect(&rect, WS_OVERLAPPEDWINDOW, NULL);
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int windowWidth = rect.right - rect.left;
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int windowHeight = rect.bottom - rect.top;
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HWND hwnd = CreateWindowEx(NULL, L"GLWindow", L"OpenGL Window", WS_OVERLAPPEDWINDOW,
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100, 100, windowWidth, windowHeight,
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NULL, NULL, hInstance, NULL);
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/*选定像素格式*/
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HDC dc = GetDC(hwnd);
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PIXELFORMATDESCRIPTOR pfd;
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memset(&pfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
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pfd.nVersion = 1;
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pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
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pfd.cColorBits = 32;
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pfd.cDepthBits = 24;
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pfd.cStencilBits = 8;
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pfd.iPixelType = PFD_TYPE_RGBA;
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pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
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int pixelFormat = ChoosePixelFormat(dc, &pfd);
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SetPixelFormat(dc, pixelFormat, &pfd);
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/*创建OpenGL渲染环境*/
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HGLRC rc = wglCreateContext(dc);
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wglMakeCurrent(dc, rc);
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/*启用OpenGL高级api*/
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glewInit();
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/*初始化场景*/
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Init();
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SetViewPortSize(800.0f, 600.0f);
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ShowWindow(hwnd, SW_SHOW);
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UpdateWindow(hwnd);
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MSG msg;
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while (true)
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{
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if (PeekMessage(&msg, NULL, NULL, NULL, PM_REMOVE))
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{
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if (msg.message == WM_QUIT)
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{
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break;
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}
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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Draw();
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SwapBuffers(dc);
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}
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return 0;
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}
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