www.pudn.com > raytracer3.zip > testapp.cpp

// Don't look here. The interesting stuff is elsewhere. 
 
#define WIN32_LEAN_AND_MEAN 
#include  
#include  
#include "common.h" 
#include "raytracer.h" 
#include "scene.h" 
#include "surface.h" 
 
#define SCRWIDTH	800 
#define SCRHEIGHT	600 
 
static WNDCLASS wc; 
static HWND wnd; 
static char bitmapbuffer[sizeof( BITMAPINFO ) + 16]; 
static BITMAPINFO* bh; 
HDC window_hdc; 
Raytracer::Surface* surface = 0; 
Pixel* buffer = 0; 
Raytracer::Engine* tracer = 0; 
 
void DrawWindow(); 
 
static LRESULT CALLBACK WndProc( HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam ) 
{ 
	int result = 0, keycode = 0; 
	switch (message) 
	{ 
	case WM_PAINT: 
		if (!buffer) break; 
		StretchDIBits( window_hdc, 0, 0, SCRWIDTH, SCRHEIGHT, 0, 0, SCRWIDTH, SCRHEIGHT, buffer, bh, DIB_RGB_COLORS, SRCCOPY ); 
		ValidateRect( wnd, NULL ); 
		break; 
	case WM_KEYDOWN: 
		if ((wParam & 0xFF) != 27) break; 
	case WM_CLOSE: 
		ReleaseDC( wnd, window_hdc ); 
		DestroyWindow( wnd ); 
		SystemParametersInfo( SPI_SETSCREENSAVEACTIVE, 1, 0, 0 ); 
		ExitProcess( 0 ); 
		break; 
	default: 
		result = DefWindowProc(hWnd,message,wParam,lParam); 
	} 
	return result; 
} 
 
int APIENTRY WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow) 
{ 
	RECT rect; 
	int cc; 
	wc.style = CS_OWNDC | CS_VREDRAW | CS_HREDRAW; 
	wc.lpfnWndProc = WndProc; 
	wc.cbClsExtra = wc.cbWndExtra = 0; 
	wc.hInstance = 0; 
	wc.hIcon = NULL; 
	wc.hCursor = LoadCursor(0,IDC_ARROW); 
	wc.hbrBackground = NULL; 
	wc.lpszMenuName = NULL; 
	wc.lpszClassName = "raytracer"; 
	if (!RegisterClass(&wc)) return FALSE; 
	rect.left = rect.top = 0; 
	rect.right = SCRWIDTH, rect.bottom = SCRHEIGHT; 
	AdjustWindowRect( &rect, WS_POPUP|WS_SYSMENU|WS_CAPTION, 0 ); 
	rect.right -= rect.left, rect.bottom -= rect.top; 
	wnd = CreateWindowEx( 0, "raytracer", "raytracer", WS_OVERLAPPEDWINDOW & ~WS_MAXIMIZEBOX & ~WS_THICKFRAME, 
		CW_USEDEFAULT, CW_USEDEFAULT, rect.right, rect.bottom, 0, 0, 0, 0 ); 
	ShowWindow(wnd,SW_NORMAL); 
	for ( cc = 0; cc < sizeof( BITMAPINFOHEADER ) + 16; cc++ ) bitmapbuffer[cc] = 0; 
	bh = (BITMAPINFO *)&bitmapbuffer; 
	bh->bmiHeader.biSize = sizeof( BITMAPINFOHEADER ); 
	bh->bmiHeader.biPlanes = 1; 
	bh->bmiHeader.biBitCount = 32; 
	bh->bmiHeader.biCompression = BI_BITFIELDS; 
	bh->bmiHeader.biWidth = SCRWIDTH, bh->bmiHeader.biHeight = -SCRHEIGHT; 
	((unsigned long*)bh->bmiColors)[0] = 255 << 16; 
	((unsigned long*)bh->bmiColors)[1] = 255 << 8; 
	((unsigned long*)bh->bmiColors)[2] = 255; 
	window_hdc = GetDC(wnd); 
	SystemParametersInfo(SPI_SETSCREENSAVEACTIVE, 0, 0, 0); 
	// prepare output canvas 
	surface = new Raytracer::Surface( SCRWIDTH, SCRHEIGHT ); 
	buffer = surface->GetBuffer(); 
	surface->Clear( 0 ); 
	surface->InitCharset(); 
	surface->Print( "timings:", 2, 2, 0xffffffff ); 
	// prepare renderer 
	tracer = new Raytracer::Engine(); 
	tracer->GetScene()->InitScene(); 
	tracer->SetTarget( surface->GetBuffer(), SCRWIDTH, SCRHEIGHT ); 
	int tpos = 60; 
	// go 
	while (1) 
	{ 
		int fstart = GetTickCount(); 
		tracer->InitRender(); 
		// while (!tracer->RenderTiles()) DrawWindow(); 
		while (!tracer->Render()) DrawWindow(); 
		int ftime = GetTickCount() - fstart; 
		char t[] = "00:00.000"; 
		t[6] = (ftime / 100) % 10 + '0'; 
		t[7] = (ftime / 10) % 10 + '0'; 
		t[8] = (ftime % 10) + '0'; 
		int secs = (ftime / 1000) % 60; 
		int mins = (ftime / 60000) % 100; 
		t[3] = ((secs / 10) % 10) + '0'; 
		t[4] = (secs % 10) + '0'; 
		t[1] = (mins % 10) + '0'; 
		t[0] = ((mins / 10) % 10) + '0'; 
		surface->Print( t, tpos, 2, 0xffffffff ); 
		tpos += 100; 
	} 
	return 1; 
} 
 
void DrawWindow() 
{ 
	MSG message; 
	HACCEL haccel = 0; 
	InvalidateRect( wnd,NULL,TRUE ); 
	SendMessage( wnd, WM_PAINT, 0, 0 ); 
	while (PeekMessage( &message, wnd, 0, 0, PM_REMOVE )) 
	{ 
		if (TranslateAccelerator( wnd, haccel, &message ) == 0) 
		{ 
			TranslateMessage( &message ); 
			DispatchMessage( &message ); 
		} 
	} 
	Sleep( 0 ); 
}