OpenGL

开发平台：
Windows_Unix

System.cpp：源码内容
							//
// a64ki
// Copyright (c) 2002 Henrik Carlgren
// http://ziruz.cjb.net
// ziruz@hotpop.com
//
//
// INCLUDE FILES
//
#include "system.h"
#include "config.h"
//
// GLOBAL VARIABLES
//
extern HINSTANCE applicationInstance;
extern HWND windowHandle;
extern HDC deviceContext;
extern HGLRC renderContext;
extern bool running;
//
// FUNCTION: systemStartup
//
void systemStartup(void)
{
	WNDCLASS wndClass;
	DWORD style;
	PIXELFORMATDESCRIPTOR pixelFormatDescriptor;
	int i;
	//
	// Win32
	//
	for(i = 0; i < sizeof(wndClass); i++)
	{
		*(((char *)&wndClass)+i) = 0;
	}
	wndClass.lpfnWndProc = windowProcess;
	wndClass.hInstance = applicationInstance;
	wndClass.lpszClassName = "window";
	RegisterClass(&wndClass);
	#ifdef FULLSCREEN
		DEVMODE screenSettings;
		ZeroMemory(&screenSettings, sizeof(screenSettings));
		screenSettings.dmSize = sizeof(screenSettings);
		screenSettings.dmPelsWidth = 800;
		screenSettings.dmPelsHeight = 600;
		screenSettings.dmBitsPerPel = 32;
		screenSettings.dmFields = DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT|DM_DISPLAYFREQUENCY;
		ChangeDisplaySettings(&screenSettings, CDS_FULLSCREEN);
		style = WS_CLIPSIBLINGS|WS_CLIPCHILDREN|WS_POPUP;
		ShowCursor(FALSE);
	#else // FULLSCREEN
		style = WS_CAPTION|WS_POPUPWINDOW|WS_VISIBLE;
	#endif // FULLSCREEN
	windowHandle = CreateWindowEx(
		WS_EX_APPWINDOW,
		"window", "a64ki",
		style,0, 0, 800, 600,
		NULL, NULL,	applicationInstance, NULL);
	ShowWindow(windowHandle, SW_SHOW);
	SetForegroundWindow(windowHandle);
	SetFocus(windowHandle);
	
	//
	// OpenGL
	//
	deviceContext = GetDC(windowHandle);
	for(i = 0; i < sizeof(wndClass); i++)
	{
		*(((char *)&pixelFormatDescriptor)+i) = 0;
	}
	pixelFormatDescriptor.nSize = sizeof(pixelFormatDescriptor);
	pixelFormatDescriptor.dwFlags = PFD_DRAW_TO_WINDOW|PFD_SUPPORT_OPENGL|PFD_DOUBLEBUFFER;
	pixelFormatDescriptor.cColorBits = 32;
	pixelFormatDescriptor.cDepthBits = 16;
	pixelFormatDescriptor.cStencilBits = 8;
	SetPixelFormat(deviceContext, ChoosePixelFormat(deviceContext, &pixelFormatDescriptor), &pixelFormatDescriptor);
	renderContext = wglCreateContext(deviceContext);
	wglMakeCurrent(deviceContext, renderContext);
}
//
// FUNCTION: systemCleanup
//
void systemCleanup(void)
{
	//
	// OpenGL
	//
	wglMakeCurrent(NULL, NULL);
	wglDeleteContext(renderContext);
	//
	// Win32
	//
	DestroyWindow(windowHandle);
	UnregisterClass("window", applicationInstance);
	ChangeDisplaySettings(NULL, 0);
	ShowCursor(TRUE);
}
//
// FUNCTION: systemCycle
//
void systemCycle(void)
{
	MSG message;
	while(PeekMessage(&message, NULL, 0, 0, PM_REMOVE))
	{
		TranslateMessage(&message);
		DispatchMessage(&message);
	}
}
//
// FUNCTION: windowProcess
//
LRESULT APIENTRY windowProcess(HWND windowHandle, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch(message)
	{
	case WM_CLOSE:
		running = false;
		break;
	case WM_QUIT:
		running = false;
		break;
	case WM_KEYDOWN:
		if(LOWORD(wParam) == VK_ESCAPE)
			running = false;
		break;
	default:
		return DefWindowProc(windowHandle, message, wParam, lParam);
	}
	return 0;
}

						