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#include "ggl.h"
#include "scene.h"
#pragma comment(lib,"opengl32.lib")
#pragma comment(lib, "glew32.lib")
#pragma comment(lib, "winmm.lib")
unsigned char * LoadFileContent(const char *path, int &filesize) {
unsigned char*fileContent = nullptr;
filesize = 0;
FILE*pFile = fopen(path, "rb");
if (pFile) {
fseek(pFile, 0, SEEK_END);
int nLen = ftell(pFile);
if (nLen > 0) {
rewind(pFile);
fileContent = new unsigned char[nLen + 1];
fread(fileContent, sizeof(unsigned char), nLen, pFile);
fileContent[nLen] = '\0';
filesize = nLen;
}
fclose(pFile);
}
return fileContent;
}
float GetFrameTime() {
static unsigned long lastTime = 0, timeSinceComputerStart = 0;
timeSinceComputerStart = timeGetTime();
unsigned long frameTime = lastTime == 0 ? 0 : timeSinceComputerStart - lastTime;
lastTime = timeSinceComputerStart;
return float(frameTime) / 1000.0f;
}
LRESULT CALLBACK GLWindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch (msg)
{
case WM_CLOSE:
PostQuitMessage(0);
return 0;
}
return DefWindowProc(hwnd, msg, wParam, lParam);
}
INT WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)
{
WNDCLASSEX wndclass;
wndclass.cbClsExtra = 0;
wndclass.cbSize = sizeof(WNDCLASSEX);
wndclass.cbWndExtra = 0;
wndclass.hbrBackground = NULL;
wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
wndclass.hIcon = NULL;
wndclass.hIconSm = NULL;
wndclass.hInstance = hInstance;
wndclass.lpfnWndProc = GLWindowProc;
wndclass.lpszClassName = L"GLWindow";
wndclass.lpszMenuName = NULL;
wndclass.style = CS_VREDRAW | CS_HREDRAW;
ATOM atom = RegisterClassEx(&wndclass);
if (!atom) {
MessageBox(NULL, L"Register Fail", L"Error", MB_OK);
return 0;
}
RECT rect;
rect.left = 0;
rect.right = 800;
rect.top = 0;
rect.bottom = 600;
AdjustWindowRect(&rect, WS_OVERLAPPEDWINDOW, NULL);
int windowWidth = rect.right - rect.left;
int windowHeight = rect.bottom - rect.top;
HWND hwnd = CreateWindowEx(NULL, L"GLWindow", L"OpenGL Window", WS_OVERLAPPEDWINDOW,
100, 100, windowWidth, windowHeight,
NULL, NULL, hInstance, NULL);
HDC dc = GetDC(hwnd);
PIXELFORMATDESCRIPTOR pfd;
memset(&pfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
pfd.nVersion = 1;
pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
pfd.cColorBits = 32;
pfd.cDepthBits = 24;
pfd.cStencilBits = 8;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
int pixelFormat = ChoosePixelFormat(dc, &pfd);
SetPixelFormat(dc, pixelFormat, &pfd);
HGLRC rc = wglCreateContext(dc);
wglMakeCurrent(dc, rc);
glewInit();
Init();
SetViewPortSize(800.0f, 600.0f);
ShowWindow(hwnd, SW_SHOW);
UpdateWindow(hwnd);
MSG msg;
while (true)
{
if (PeekMessage(&msg, NULL, NULL, NULL, PM_REMOVE))
{
if (msg.message == WM_QUIT)
{
break;
}
TranslateMessage(&msg);
DispatchMessage(&msg);
}
Draw();
SwapBuffers(dc);
}
return 0;
}