gdibits.asm

这是一个数字图像处理的matlab仿真程序

; #########################################################################

      .386
      .model flat, stdcall  ; 32 bit memory model
      option casemap :none  ; case sensitive

      include gdibits.inc   ; local includes for this file

; #########################################################################

.code

start:
      invoke GetModuleHandle, NULL
      mov hInstance, eax

      invoke GetCommandLine
      mov CommandLine, eax

      invoke WinMain,hInstance,NULL,CommandLine,SW_SHOWDEFAULT
      invoke ExitProcess,eax

; #########################################################################

WinMain proc hInst     :DWORD,
             hPrevInst :DWORD,
             CmdLine   :DWORD,
             CmdShow   :DWORD

      ;====================
      ; Put LOCALs on stack
      ;====================

      LOCAL wc   :WNDCLASSEX
      LOCAL msg  :MSG
      LOCAL Wwd  :DWORD
      LOCAL Wht  :DWORD
      LOCAL Wtx  :DWORD
      LOCAL Wty  :DWORD

      ;==================================================
      ; Fill WNDCLASSEX structure with required variables
      ;==================================================

      invoke LoadIcon,hInst,500    ; icon ID
      mov hIcon, eax

      szText szClassName,"GDIs_Class"

      mov wc.cbSize,         sizeof WNDCLASSEX
      mov wc.style,          CS_BYTEALIGNWINDOW
      mov wc.lpfnWndProc,    offset WndProc
      mov wc.cbClsExtra,     NULL
      mov wc.cbWndExtra,     NULL
      m2m wc.hInstance,      hInst
      mov wc.hbrBackground,  COLOR_BTNFACE+1
      mov wc.lpszMenuName,   NULL
      mov wc.lpszClassName,  offset szClassName
      m2m wc.hIcon,          hIcon
        invoke LoadCursor,NULL,IDC_ARROW
      mov wc.hCursor,        eax
      m2m wc.hIconSm,        hIcon

      invoke RegisterClassEx, ADDR wc

      ;================================
      ; Centre window at following size
      ;================================

      mov Wwd, 500
      mov Wht, 350

      invoke GetSystemMetrics,SM_CXSCREEN
      invoke TopXY,Wwd,eax
      mov Wtx, eax

      invoke GetSystemMetrics,SM_CYSCREEN
      invoke TopXY,Wht,eax
      mov Wty, eax

      invoke CreateWindowEx,WS_EX_LEFT,
                            ADDR szClassName,
                            ADDR szDisplayName,
                            WS_OVERLAPPEDWINDOW,
                            Wtx,Wty,Wwd,Wht,
                            NULL,NULL,
                            hInst,NULL
      mov   hWnd,eax

      invoke LoadMenu,hInst,600  ; menu ID
      invoke SetMenu,hWnd,eax

      invoke ShowWindow,hWnd,SW_SHOWNORMAL
      invoke UpdateWindow,hWnd

      ;===================================
      ; Loop until PostQuitMessage is sent
      ;===================================

    StartLoop:
      invoke GetMessage,ADDR msg,NULL,0,0
      cmp eax, 0
      je ExitLoop
      invoke TranslateMessage, ADDR msg
      invoke DispatchMessage,  ADDR msg
      jmp StartLoop
    ExitLoop:

      return msg.wParam

WinMain endp

; #########################################################################

WndProc proc hWin   :DWORD,
             uMsg   :DWORD,
             wParam :DWORD,
             lParam :DWORD

    LOCAL var    :DWORD
    LOCAL caW    :DWORD
    LOCAL caH    :DWORD
    LOCAL Rct    :RECT
    LOCAL hDC    :DWORD
    LOCAL Ps     :PAINTSTRUCT
    LOCAL buffer1[128]:BYTE  ; these are two spare buffers
    LOCAL buffer2[128]:BYTE  ; for text manipulation etc..

    .if uMsg == WM_COMMAND
    ;======== menu commands ========
    .elseif uMsg == WM_CREATE

    .elseif uMsg == WM_SIZE

    .elseif uMsg == WM_PAINT
        invoke BeginPaint,hWin,ADDR Ps
          mov hDC, eax
          invoke Paint_Proc,hWin,hDC
        invoke EndPaint,hWin,ADDR Ps
        return 0

    .elseif uMsg == WM_CLOSE

    .elseif uMsg == WM_DESTROY
        invoke PostQuitMessage,NULL
        return 0 
    .endif

    invoke DefWindowProc,hWin,uMsg,wParam,lParam

    ret

WndProc endp

; ########################################################################

TopXY proc wDim:DWORD, sDim:DWORD

    shr sDim, 1      ; divide screen dimension by 2
    shr wDim, 1      ; divide window dimension by 2
    mov eax, wDim    ; copy window dimension into eax
    sub sDim, eax    ; sub half win dimension from half screen dimension

    return sDim

TopXY endp

; #########################################################################

Paint_Proc proc hWin:DWORD, hDC:DWORD

    LOCAL hPen      :DWORD
    LOCAL hPenOld   :DWORD
    LOCAL hBrush    :DWORD
    LOCAL hBrushOld :DWORD

    LOCAL lb        :LOGBRUSH

    invoke CreatePen,0,1,000000FFh  ; red
    mov hPen, eax

    mov lb.lbStyle, BS_SOLID
    mov lb.lbColor, 00FF0000h       ; blue
    mov lb.lbHatch, NULL

    invoke CreateBrushIndirect,ADDR lb
    mov hBrush, eax

    invoke SelectObject,hDC,hPen
    mov hPenOld, eax

    invoke SelectObject,hDC,hBrush
    mov hBrushOld, eax

  ; ------------------------------------------------
  ; The 4 GDI functions use the pen colour set above
  ; and fill the area with the current brush.
  ; ------------------------------------------------

    invoke Ellipse,hDC,10,10,110,110

    invoke Rectangle,hDC,175,10,400,110

    invoke Chord,hDC,180,120,400,250,
                     180,120,400,120

    invoke Pie,hDC,10,120,110,220,
                   10,120,350,120

  ; ------------------------------------------------

    invoke SelectObject,hDC,hBrushOld
    invoke DeleteObject,hBrush

    invoke SelectObject,hDC,hPenOld
    invoke DeleteObject,hPen

    ret

Paint_Proc endp

; ########################################################################

end start