自分の昔のプログラムを見ていたら callback routine (MainWndProc) へスレッドローカル記憶域（TLS）を使ってパラメータを渡していました。昔の自分の真似をして問☆題☆解☆決！
基底クラスの動的変数を、win32 型で領域確保して図を描いています。それぞれの図は独立していて、変数名で自然に区別されます。図の数はリソース内での任意個で宣言しただけ取れるはずです。
実行結果
Mandelbrot 集合の全体図と拡大図、Lorenz Attractor、ロジスティック方程式の Chaos と80年代のノリで。
ソース・コード
HTML5とPostscriptは点が打てないので、これらとの統合はまだ考え中です。色指定等に不整合がありますが、やっつけということで。
module m_oop implicit none type :: t_rgb integer :: ir, ig, ib end type t_rgb type, abstract :: t_device character(len = 80) :: title = 'Plotter' integer :: nsize_x = 640, nsize_y = 480 integer :: line_width = 1 type (t_rgb) :: rgb = t_rgb(0, 0, 0) contains procedure (device_on), deferred, pass :: on procedure (device_off), deferred, pass :: off procedure (device_show), deferred, pass :: show procedure (device_pen), deferred, pass :: pen procedure (device_lineTo), deferred, pass :: lineTo procedure (device_moveTo), deferred, pass :: moveTo procedure (device_dot), deferred, pass :: dot end type t_device abstract interface subroutine device_on(self) import :: t_device class(t_device), intent(in out) :: self end subroutine device_on subroutine device_off(self) import :: t_device class(t_device), intent(in) :: self end subroutine device_off subroutine device_show(self) import :: t_device class(t_device), intent(in) :: self end subroutine device_show subroutine device_pen(self, line_width, rgb) import :: t_device, t_rgb class(t_device), intent(in out) :: self integer, intent(in), optional :: line_width type (t_rgb), intent(in), optional :: rgb end subroutine device_pen subroutine device_lineTo(self, ix, iy) import :: t_device class(t_device), intent(in) :: self integer, intent(in) :: ix, iy end subroutine device_lineTo subroutine device_moveTo(self, ix, iy) import :: t_device class(t_device), intent(in) :: self integer, intent(in) :: ix, iy end subroutine device_moveTo subroutine device_dot(self, ix, iy, icol) import :: t_device, t_rgb class(t_device), intent(in) :: self integer, intent(in) :: ix, iy integer, intent(in) :: icol ! type (t_rgb), intent(in) :: rgb end subroutine device_dot end interface end module m_oop module m_win32 use ifwina use ifwinty use ifmt, only : RTL_CRITICAL_SECTION use m_oop implicit none type :: t_wnd integer (HANDLE) :: hWnd = 0 integer (HANDLE) :: hDC = 0 integer (LPINT) :: hThread = 0 integer (LPDWORD):: id = 0 integer (HANDLE) :: hPen = 0 type (RTL_CRITICAL_SECTION) :: lpCriticalSection = RTL_CRITICAL_SECTION(0,0,0,0,0,0) end type t_wnd type, extends(t_device) :: t_win32 type (t_wnd) :: wnd contains procedure, pass :: on => gr_on procedure, pass :: off => gr_off procedure, pass :: show => gr_show procedure, pass :: pen => gr_pen procedure, pass :: lineTo => gr_lineTo procedure, pass :: moveTo => gr_moveTo procedure, pass :: dot => gr_dot end type t_win32 integer (DWORD), save :: iTls = 0 integer, save :: nwin = 0 contains !-------------------------------------------------------------------------------- integer(4) function WinMain( hInstance, nCmdShow, win32 ) implicit none integer (HANDLE), intent(in) :: hInstance integer (SINT) , intent(in) :: nCmdShow type (t_win32) , intent(in) :: win32 type (T_WNDCLASS) :: wc type (T_MSG) :: mesg integer (HANDLE) :: hWndMain integer (BOOL) :: iretb character (LEN = 256) :: ClassName = 'Fortran'//char(0) integer :: iwindow_frame_x, iwindow_frame_y logical, save :: first = .true. ! Init Main window iwindow_frame_x = 2 * GetSystemMetrics(SM_CXFIXEDFRAME) !side line = 6, title bar = 25 iwindow_frame_y = 2 * GetSystemMetrics(SM_CYFIXEDFRAME) + GetSystemMetrics(SM_CYCAPTION) ! if (first) then WinMain = -1 ! Error code wc%lpszClassName = loc(ClassName) ! non-standard Fortran :: LOC(xxx) = TRANSFER(C_LOC(xxx), iii) wc%lpfnWndProc = loc(MainWndProc) ! CALLBACK procedure name wc%style = ior(CS_VREDRAW , CS_HREDRAW) wc%hInstance = hInstance wc%hIcon = NULL wc%hCursor = LoadCursor( NULL, IDC_ARROW ) wc%hbrBackground = ( COLOR_WINDOW + 1 ) if ( RegisterClass(wc) == 0 ) return ! initialize window first = .false. end if ! Init instance WinMain = -2 ! Error code hWndMain = CreateWindowEx( 0, ClassName, & trim(win32%title)//char(0), & int(ior(WS_OVERLAPPED, WS_SYSMENU)), & CW_USEDEFAULT, CW_USEDEFAULT, & win32%nsize_x + iwindow_frame_x, & win32%nsize_y + iwindow_frame_y, & 0, 0, & hInstance, & LOC(win32%wnd) ) ! non-standard if (hWndMain == 0) return iretb = ShowWindow( hWndMain, nCmdShow ) iretb = UpdateWindow( hWndMain ) ! Message Loop do while ( GetMessage (mesg, NULL, 0, 0) ) iretb = TranslateMessage( mesg ) iretb = DispatchMessage( mesg ) end do WinMain = mesg%wParam return end function WinMain !------------------------------------------------------------------------------------- integer (LRESULT) function MainWndProc( hWnd, mesg, wParam, lParam ) !DEC$ ATTRIBUTES STDcall, DECORATE, ALIAS : 'MainWndProc' :: MainWndProc integer (HANDLE) , intent(in) :: hWnd integer (UINT) , intent(in) :: mesg integer (fwParam), intent(in) :: wParam integer (flParam), intent(in) :: lParam ! integer (HANDLE) :: hDC, hBmp integer (BOOL) :: iretb type (T_PAINTSTRUCT) :: ps type (T_RECT) :: rc ! TYPE (T_CREATESTRUCT) :: cs TYPE (t_wnd) :: wnd POINTER (p_cs, cs) ! non-standard POINTER (p_wnd, wnd) ! non-standard ! MainWndProc = 0 select case ( mesg ) case (WM_CREATE) p_cs = lParam p_wnd = cs%lpCreateParams iretb = TlsSetValue(iTls, p_wnd) wnd%hWnd = hWnd hDC = GetDC(hWnd) wnd%hDC = CreateCompatibleDC(hDC) iretb = GetClientRect(hWnd, rc) hBmp = CreateCompatibleBitmap(hDC, rc%right - rc%left, rc%bottom - rc%top) iretb = SelectObject(wnd%hDC, hBmp) iretb = PatBlt(wnd%hDC, 0, 0, rc%right - rc%left, rc%bottom - rc%top, WHITENESS) iretb = ReleaseDC(hWnd, hDC) iretb = DeleteObject(hBmp) case (WM_DESTROY) p_wnd = TlsGetValue(iTls) call EnterCriticalSection( loc(wnd%lpCriticalSection) ) iretb = DeleteObject( wnd%hDC ) call PostQuitMessage( 0 ) call LeaveCriticalSection( loc(wnd%lpCriticalSection) ) case (WM_PAINT) p_wnd = TlsGetValue(iTls) call EnterCriticalSection( loc(wnd%lpCriticalSection) ) hDC = BeginPaint( wnd%hWnd, ps ) iretb = GetClientRect( wnd%hWnd, rc ) iretb = BitBlt(hDC, 0, 0, rc%right - rc%left, rc%bottom - rc%top, wnd%hDC, 0, 0, SRCCOPY) iretb = endPaint( wnd%hWnd, ps ) call LeaveCriticalSection( loc(wnd%lpCriticalSection) ) case (WM_RBUTTONUP) p_wnd = TlsGetValue(iTls) call EnterCriticalSection( loc(wnd%lpCriticalSection) ) iretb = DeleteObject( wnd%hDC ) call PostQuitMessage( 0 ) call LeaveCriticalSection( loc(wnd%lpCriticalSection) ) case default MainWndProc = DefWindowProc( hWnd, mesg, wParam, lParam ) end select return end function MainWndProc !------------------------------------------------------------------------------------- subroutine gr_on(self) use IFMT, only : CreateThread ! multithread module class(t_win32), intent(in out) :: self integer (BOOL) :: iretb integer (HANDLE) :: hBmp type (T_RECT) :: rc associate(wnd => self%wnd) call InitializeCriticalSection( loc(wnd%lpCriticalSection) ) ! non-standard Fortran :: LOC if (nwin == 0) iTls = TlsAlloc() nwin = nwin + 1 wnd%hThread = CreateThread(NULL, 0, Thread_Proc, NULL, CREATE_SUSPENDED, wnd%id) iretb = SetThreadPriority(wnd%hThread, THREAD_PRIORITY_BELOW_NORMAL) iretb = ResumeThread(wnd%hThread) call sleep(100) ! wait for Window initialization iretb = GetClientRect(wnd%hWnd, rc) hBmp = CreateCompatibleBitmap(wnd%hDC, rc%right - rc%left, rc%bottom - rc%top) iretb = SelectObject(wnd%hDC, hBmp) iretb = DeleteObject(hBmp) iretb = PatBlt(wnd%hDC, 0, 0, rc%right - rc%left, rc%bottom - rc%top, WHITENESS) wnd%hPen = CreatePen(PS_SOLID, 1, 0) end associate return contains integer (LONG) function Thread_Proc(lp_ThreadParameter) !DEC$ ATTRIBUTES STDcall, ALIAS:"_thread_proc" :: Thread_Proc integer (LPINT), intent(in) :: lp_ThreadParameter integer :: hInst hInst = GetModuleHandle(NULL) Thread_Proc = WinMain(hInst, SW_SHOWNORMAL, self) return end function Thread_Proc end subroutine gr_on !------------------------------------------------------------------------------------- subroutine gr_off(self) class(t_win32), intent(in) :: self integer (BOOL) :: iretb integer (DWORD) :: iwait associate(wnd => self%wnd) iwait = INFINITE iretb = InvalidateRect(wnd%hWnd, NULL, FALSE) iretb = DeleteObject(wnd%hPen) iretb = WaitForSingleObject(wnd%hThread, iwait) iretb = CloseHandle(wnd%hThread) iretb = PostMessage(wnd%hWnd, WM_DESTROY, NULL, NULL) ! wnd%hThread = NULL call DeleteCriticalSection( loc(wnd%lpCriticalSection) ) ! non-standard Fortran :: LOC end associate nwin = nwin - 1 if (nwin ==0) iretb = TlsFree(iTls) return end subroutine gr_off !------------------------------------------------------------------------------------- subroutine gr_show(self) class(t_win32), intent(in) :: self integer (BOOL):: iretb associate(wnd => self%wnd) call EnterCriticalSection( loc(wnd%lpCriticalSection) ) ! non-standard Fortran :: LOC iretb = InvalidateRect(wnd%hWnd, NULL, FALSE) call LeaveCriticalSection( loc(wnd%lpCriticalSection) ) ! non-standard Fortran :: LOC end associate return end subroutine gr_show !------------------------------------------------------------------------------------- subroutine gr_pen(self, line_width, rgb) class(t_win32), intent(in out) :: self integer, intent(in), optional :: line_width type (t_rgb), intent(in), optional :: rgb integer (BOOL) :: iretb associate( rgb_ => self%rgb, line_width_ => self%line_width, wnd => self%wnd ) if ( present(rgb) ) rgb_ = rgb if ( present(line_width) ) line_width_ = line_width call EnterCriticalSection( loc(wnd%lpCriticalSection) ) ! non-standard Fortran :: LOC iretb = DeleteObject(wnd%hPen) wnd%hPen = CreatePen(PS_SOLID, line_width_, irgb(rgb_)) iretb = SelectObject(wnd%hDC, wnd%hPen) iretb = MoveToEx(wnd%hDC, 0, 0, NULL) call LeaveCriticalSection( loc(wnd%lpCriticalSection) ) ! non-standard Fortran :: LOC end associate return contains integer function irgb(rgb) type(t_rgb), intent(in) :: rgb irgb = rgb%ir + (rgb%ig + (rgb%ib * 256)) * 256 return end function irgb end subroutine gr_pen !---------------------------------------------------------------- subroutine gr_moveTo(self, ix, iy) class(t_win32), intent(in) :: self integer, intent(in) :: ix, iy integer (BOOL):: iretb associate(wnd => self%wnd) call EnterCriticalSection( loc(wnd%lpCriticalSection) ) ! non-standard Fortran :: LOC iretb = MoveToEx(wnd%hDC, ix, iy, NULL) call LeaveCriticalSection( loc(wnd%lpCriticalSection) ) ! non-standard Fortran :: LOC end associate return end subroutine gr_moveTo !---------------------------------------------------------------- subroutine gr_lineTo(self, ix, iy) class(t_win32), intent(in) :: self integer, intent(in) :: ix, iy integer (BOOL):: iretb associate(wnd => self%wnd) call EnterCriticalSection( loc(wnd%lpCriticalSection) ) ! non-standard Fortran :: LOC iretb = LineTo(wnd%hDC, ix, iy) call LeaveCriticalSection( loc(wnd%lpCriticalSection) ) ! non-standard Fortran :: LOC end associate return end subroutine gr_lineTo !------------------------------------------------------------------------------------- subroutine gr_dot(self, ix, iy, icol) class(t_win32), intent(in) :: self integer, intent(in) :: ix, iy, icol integer (BOOL):: iretb associate(wnd => self%wnd) call EnterCriticalSection( loc(wnd%lpCriticalSection) ) ! non-standard Fortran :: LOC iretb = SetPixel(wnd%hDC, ix, iy, icol) call LeaveCriticalSection( loc(wnd%lpCriticalSection) ) ! non-standard Fortran :: LOC end associate return end subroutine gr_dot !---------------------------------------------------------------- end module m_win32 module m_plot use m_oop use m_win32 implicit none private public :: t_rgb, t_device, t_win32, t_wnd end module m_plot !================================================================== module m_mandel implicit none integer, parameter :: kd = kind(0.0d0) contains pure elemental integer function imandel(x, y) real(kd), intent(in) :: x, y real(kd) :: a, b, a2, b2 integer :: icount a = x b = y a2 = a * a b2 = b * b icount = 150 !maxiter do while (a2 + b2 <= 4.0_kd .AND. icount > 0) b = 2.0_kd * a * b - y a = a2 - b2 - x a2 = a * a b2 = b * b icount = icount - 1 end do imandel = icount return end function imandel end module m_mandel !================================================================== program Mandel use m_plot use m_mandel use ifmt, only : RTL_CRITICAL_SECTION implicit none !integer, parameter :: kd = SELECTED_REAL_KIND(15) integer, parameter :: m = 1000 integer :: nwinx = 800, nwiny = 600 integer :: i, j, k, imax, jmax, maxiter, icount, ix real (kd) :: xmin, xmax, ymin, ymax real (kd) :: xmin1, xmax1, ymin1, ymax1 real (kd) :: x, y, z, dx, dy, dz, a, b, c, d, p real (kd) :: t0, t1 integer, allocatable :: ic(:, :) integer :: icol(0:m), it0, it1 class(t_device), allocatable :: fig1, fig2, fig3, fig4 type(t_rgb), parameter :: rgb_black = t_rgb(0, 0, 0) type(RTL_CRITICAL_SECTION), parameter :: rtl_init = RTL_CRITICAL_SECTION(0,0,0,0,0,0) type(t_wnd), parameter :: wnd_init = t_wnd(0, 0, 0, 0, 0, rtl_init) ! xmin = -2.0d0 xmax = 2.0d0 ymin = -2.0d0 ymax = 2.0d0 maxiter = 150 ! dx = xmax - xmin dy = ymax - ymin if (dx <= 0.0_kd .OR. dy <= 0.0_kd .OR. maxiter <= 0 .OR. maxiter > M) stop 'input error' if (dx * nwinx > dy * nwiny) then imax = nwinx jmax = nint(nwinx * dy / dx) else imax = nint(nwiny * dx / dy) jmax = int(nwiny) end if ! dx = dx / real(imax, kd) dy = dy / real(jmax, kd) icol(0) = 0 ! black j = irgb(255, 255, 255) do i = maxiter, 1, -1 icol(i) = j if (j > 1) j = j - irgb(255, 255, 255) / maxiter end do ! allocate( ic(0:imax, 0:jmax) ) call system_clock(it0) call cpu_time(t0) do concurrent (i = 0:imax, j = 0:jmax) x = xmin + i * dx y = ymax - j * dy ic(i, j) = imandel(x, y) end do call cpu_time(t1) call system_clock(it1) print *, ' do concurrent time =', t1 - t0, it1 - it0 ! allocate(fig1, source = t_win32('Mandelbrot 1', imax, jmax, 1, rgb_black, wnd_init)) call fig1%on() do i = 0, imax do j = 0, jmax call fig1%dot(i, j, icol(ic(i, j))) end do call fig1%show() end do deallocate( ic ) ! xmin = 1.10950d0 xmax = 1.10951d0 ymin = 0.24758d0 ymax = 0.24759d0 ! dx = xmax - xmin dy = ymax - ymin if (dx <= 0.0_kd .OR. dy <= 0.0_kd .OR. maxiter <= 0 .OR. maxiter > M) stop 'input error' if (dx * nwinx > dy * nwiny) then imax = nwinx jmax = nint(nwinx * dy / dx) else imax = nint(nwiny * dx / dy) jmax = int(nwiny) end if ! dx = dx / real(imax, kd) dy = dy / real(jmax, kd) allocate( ic(0:imax, 0:jmax) ) call system_clock(it0) call cpu_time(t0) do concurrent (i = 0:imax, j = 0:jmax) x = xmin + i * dx y = ymax - j * dy ic(i, j) = imandel(x, y) end do call cpu_time(t1) call system_clock(it1) print *, ' do concurrent time =', t1 - t0, it1 - it0 ! allocate(fig2, source = t_win32('Mandelbrot 2', imax, jmax, 1, rgb_black, wnd_init)) call fig2%on() do i = 0, imax do j = 0, jmax call fig2%dot(i, j, icol(ic(i, j))) end do call fig2%show() end do ! allocate(fig3, source = t_win32('Lorenz attractor', 800, 600, 1, rgb_black, wnd_init)) call fig3%on() call fig3%pen(2, t_rgb(255, 125, 0)) a = 10.0d0 b = 28.0d0 c = 8.0d0 / 3.0d0 d = 0.01d0 x = 1.0d0 y = 1.0d0 z = 1.0d0 do k = 1, 3000 dx = a * (y - x) dy = x * (b - z) - y dz = x * y - c * z x = x + d * dx y = y + d * dy z = z + d * dz if (k < 100) call fig3%moveTo( INT(12 * (x + 30)), INT(12 * z) ) call fig3%lineTo( INT(12 * (x + 30)), INT(12 * z) ) call fig3%show() end do ! allocate(fig4, source = t_win32('Chaos', 640, 480, 1, rgb_black, wnd_init)) call fig4%on() do ix = 1, 640 p = 0.3 x = ix * (3.0 - 1.5) / 640.0 + 1.5 do i = 1, 50 p = p + x * p * (1.0 - p) end do do i = 51, 100 y = p / 1.5 * 480.0 call fig4%dot(ix, 480 - INT(y), irgb(0, 255, 122)) p = p + x * p * (1 - p) end do call fig4%show() end do call fig1%off() deallocate(fig1) call fig2%off() deallocate(fig2) call fig3%off() deallocate(fig3) call fig4%off() deallocate(fig4) stop contains integer function irgb(ir, ig, ib) implicit none integer, intent(in) :: ir, ig, ib irgb = ir + (ig + (ib * 256)) * 256 return end function irgb end program Mandel
