डेमो बनाने के बारे में थोड़ा, भाग 1

 #pragma once struct TImage { int width; int height; unsigned char *pBitMap; }; void imgClearRGBA(struct TImage Image, unsigned char R, unsigned char G, unsigned char B, unsigned char A ); void imgClear(struct TImage Image, unsigned long color ); 

 /* Images */ #include "Images.h" void imgClearRGBA(struct TImage Image, unsigned char R, unsigned char G, unsigned char B, unsigned char A ) { int i; for(i=0;i!=Image.width*Image.height*4;i=i+4) { Image.pBitMap[ i ] = B; Image.pBitMap[ i+1 ] = G; Image.pBitMap[ i+2 ] = R; Image.pBitMap[ i+3 ] = A; } } void imgClear(struct TImage Image, unsigned long color ) { unsigned long *pBitMap; int i; pBitMap = (unsigned long*)Image.pBitMap; for(i=0;i!=Image.width*Image.height;i++) { pBitMap[ i ] = color; } } 

 #pragma once #define PIXEL_SIZE 1 #define DISP_WIDTH 640 #define DISP_HEIGHT 480 void DrawBuffer(struct TImage Image); #include "windows.h" void SetHWND( HWND _Wnd ); 

 /* SystemUtils */ #include "windows.h" #include "Images.h" #include "SystemUtils.h" static HWND Wnd; void SetHWND( HWND _Wnd ) { Wnd = _Wnd; } void DrawBuffer(struct TImage Image) { BITMAPINFO BitMapInfo; HDC DC; DC = GetDC(Wnd); BitMapInfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);//   BitMapInfo.bmiHeader.biWidth = Image.width;//   BitMapInfo.bmiHeader.biHeight = -Image.height;//  ,        BitMapInfo.bmiHeader.biPlanes = 1;//   -  1 BitMapInfo.bmiHeader.biBitCount = 32;// -    BitMapInfo.bmiHeader.biCompression = BI_RGB;//  BitMapInfo.bmiHeader.biSizeImage = Image.width*Image.height*32/8;//   StretchDIBits( DC, 0, 0, Image.width*PIXEL_SIZE, Image.height*PIXEL_SIZE, //    0, 0, Image.width, Image.height, //    Image.pBitMap, //     &BitMapInfo, //  DIB_RGB_COLORS, //   SRCCOPY ); //   ReleaseDC(Wnd, DC); } 

 #pragma once #include "windows.h" void SetMsg( MSG _Msg ); void SetPause( DWORD value ); void Pause(void); 

 /*       */ //  timeGetTime   GetTickCount #define _USE_TIMEGETTIME #include "windows.h" #ifdef _USE_TIMEGETTIME #include "mmsystem.h" #pragma comment (lib,"winmm") #endif static MSG Msg; DWORD Time; DWORD OldTime; void SetMsg( MSG _Msg ) { Msg = _Msg; } void SetPause( DWORD value ) { if(value == 0)value = 1; Time = value; #ifdef _USE_TIMEGETTIME timeBeginPeriod(1);//    timeGetTime OldTime = timeGetTime()+Time; #else OldTime = GetTickCount()+Time; #endif } void Pause(void) { //   while (PeekMessage(&Msg, 0, 0, 0, PM_NOREMOVE) != 0 ) { if (GetMessage(&Msg, 0, 0, 0) ) { TranslateMessage(&Msg); DispatchMessage(&Msg); } } #ifdef _USE_TIMEGETTIME while( timeGetTime()<OldTime)Sleep(1);//       OldTime = timeGetTime()+Time; #else while( GetTickCount()<OldTime)Sleep(1);//       OldTime = GetTickCount()+Time; #endif } 

 /*           */ #include "windows.h" #include "windowsx.h" #include "Demo.h" #include "SystemUtils.h" #include "Pause.h" static HWND Wnd; static MSG Msg; static WNDCLASS wndclass; /*    , ..     Windows          "".  -    */ static POINT MouseInWin; static RECT WinRect; static int MoveWin = 0; // window procedure LONG WINAPI WndProc ( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { LONG lRet = 1; POINT point; switch (uMsg) { case WM_LBUTTONDOWN: MoveWin = 1;//move window=true GetWindowRect( Wnd, &WinRect ); point.x = GET_X_LPARAM(lParam); point.y = GET_Y_LPARAM(lParam); ClientToScreen( Wnd, (LPPOINT)&point ); MouseInWin.x = point.x-WinRect.left; MouseInWin.y = point.y-WinRect.top; SetCapture(Wnd); break; case WM_MOUSEMOVE: GetCursorPos( (LPPOINT)&point ); if(MoveWin)SetWindowPos( Wnd,0, point.x-MouseInWin.x, point.y-MouseInWin.y, WinRect.right-WinRect.left, WinRect.bottom-WinRect.top, 0); break; case WM_LBUTTONUP: MoveWin = 0;//move window=false ReleaseCapture(); break; case WM_RBUTTONUP: PostMessage(Wnd, WM_DESTROY, 0, 0); break; case WM_DESTROY: PostQuitMessage (0); ExitProcess( 0 ); break; default: lRet = DefWindowProc (hWnd, uMsg, wParam, lParam); break; } return lRet; } void CreateWin( HINSTANCE hInstance, HWND *Wnd) { const int ClientWidth = DISP_WIDTH*PIXEL_SIZE;//resolution * pixel size const int ClientHeight = DISP_HEIGHT*PIXEL_SIZE; RECT Rect = {0,0,ClientWidth,ClientHeight}; wndclass.style = CS_BYTEALIGNCLIENT; wndclass.lpfnWndProc = &WndProc; wndclass.cbClsExtra = 0; wndclass.cbWndExtra = 0; wndclass.hInstance = 0; wndclass.hIcon = LoadIcon(0, L"idi_Application"); wndclass.hCursor = LoadCursor (0,IDC_ARROW); wndclass.hbrBackground = (HBRUSH)GetStockObject(GRAY_BRUSH); wndclass.lpszMenuName = L""; wndclass.lpszClassName = L"MainWindow"; RegisterClass(&wndclass); *Wnd=CreateWindow( L"MainWindow", L"Demo", WS_POPUPWINDOW, // CW_USEDEFAULT,//x CW_USEDEFAULT,//y ClientWidth,//width ClientHeight,//height 0,// parent win 0,//menu hInstance, 0//other ); GetWindowRect(*Wnd,&Rect); Rect.bottom = Rect.left+ClientHeight;//ClientHeight Rect.right = Rect.top+ClientWidth;//ClientWidth AdjustWindowRect(&Rect, GetWindowLong(*Wnd,GWL_STYLE) ,0); SetWindowPos(*Wnd,0,Rect.left,Rect.top, Rect.right-Rect.left, Rect.bottom-Rect.top,0); ShowWindow(*Wnd, SW_SHOW ); UpdateWindow (*Wnd); } int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { CreateWin(hInstance, &Wnd);//  SetHWND(Wnd); SetMsg(Msg); StartDemo(); return 0; } 

 void StartDemo(void); 

 #include "Pause.h" #include "SystemUtils.h" #include "Images.h" #include "math.h" static unsigned char BitMap[640*480*4];//   static struct TImage Disp = {640,480,BitMap};// void StartDemo(void) { SetPause(16);//fps ~= 60 while(1) { // AARRGGBB imgClear(Disp,0xFF000000);//  DrawBuffer(Disp);//   Pause(); } } 

 #include "Pause.h" #include "SystemUtils.h" #include "Images.h" #include "math.h" static unsigned char BitMap[640*480*4];//   static struct TImage Disp = {640,480,BitMap};// static unsigned char SinT[256];//  static void CreatetSinT(void) { int i; for(i=0;i!=256;i++) { SinT[i] = (int)( sin( (i*3.14*2.0)/256.0) *128+128 ); } } void StartDemo(void) { int x,y,line; int tx1=0,ty1=0,tx2=0,ty2=0,tx3=0,ty3=0; int px1,py1,px2,py2,px3,py3; SetPause(16);//fps ~= 60 CreatetSinT(); imgClear(Disp,0xFF000000);//  while(1) { py1=ty1; py2=ty2; py3=ty3; for(y=0;y!=Disp.height;y++) { line = y*Disp.width; px1=tx1; px2=tx2; px3=tx3; for(x=0;x!=Disp.width;x++) { px1=px1+1; px2=px2+1; px3=px3+1; Disp.pBitMap[( (x + line)<<2 )+2] = (SinT[ px1&255 ]+SinT[ py1&255 ])>>1;//R Disp.pBitMap[( (x + line)<<2 )+1] = (SinT[ px2&255 ]+SinT[ py2&255 ])>>1;//G Disp.pBitMap[( (x + line)<<2 )+0] = (SinT[ px3&255 ]+SinT[ (py3+63)&255 ])>>1;//B } py1=py1+1; py2=py2+1; py3=py3+1; } tx1=tx1+1; ty1=ty1+1; tx2=tx2+2; ty2=ty2+2; tx3=ty3+3; ty3=ty3+3; DrawBuffer(Disp);//   Pause(); } }