#include "video.h"
#include <fcntl.h>
#include <io.h>
#include <iostream>
#include <fstream>

Include dependency graph for winvideo.h:

This graph shows which files directly or indirectly include this file:

Defines
#define	_WIN32_WINNT 0x0400
#define	YIELD_TO_THREAD() Sleep(0)
Functions
bool	DisplayError (LPSTR lpstrErr, HRESULT hres=0)
	Create a dialog box and tell the user what went wrong.
LRESULT CALLBACK	InternalWndProc (HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam)
	Win event processing function.
static bool	loop_once (video *v)
static bool	RedirectIOToConsole (void)
	create console window with redirection
DWORD WINAPI	thread_video (LPVOID lpParameter)
bool	WinInit (HINSTANCE hInstance, int nCmdShow, WNDCLASSEX uwc, const char title, bool fixedsize)
	Create window.
Variables
static int	g_fps = 0
HANDLE	g_handles [2] = {0,0}
HWND	g_hAppWnd
static DWORD	g_msec = 0
unsigned int *	g_pImg = 0
WNDPROC	g_pUserProc = 0
int	g_sizex
int	g_sizey
static int	g_skips = 0
static int	g_updates = 0
static video *	g_video = 0
static WNDCLASSEX *	gWndClass = 0
static HACCEL	hAccelTable = 0
static const WORD	MAX_CONSOLE_LINES = 500
const COLORREF	RGBKEY = RGB(8, 8, 16)

Define Documentation

#define _WIN32_WINNT 0x0400

Definition at line 37 of file winvideo.h.

#define YIELD_TO_THREAD ( ) Sleep(0)

Definition at line 40 of file winvideo.h.

Referenced by DDColorMatch(), DestroyOverlay(), and thread_vsync().

Function Documentation

bool DisplayError	(	LPSTR	lpstrErr,
		HRESULT	hres
	)

Definition at line 64 of file ddvideo.cpp.

References g_hAppWnd.

Referenced by DDColorMatch(), DDInit(), DDOverlayInit(), DDPrimaryInit(), DrawOverlay(), and InternalWndProc().

{
    static bool InError = false;
    int retval = 0;
    if (!InError)
    {
        InError = true;
#ifdef DDSCAPS_PRIMARYSURFACELEFT
        const char *message = hres?DXGetErrorString8A(hres):0;
#else
        char message[256]; if(hres) D3DXGetErrorString(hres, 256, message);
#endif
        retval = MessageBoxA(g_hAppWnd, lpstrErr, hres?message:"Error!", MB_OK|MB_ICONERROR);
        InError = false;
    }
    return false;
}

LRESULT CALLBACK InternalWndProc	(	HWND	hwnd,
		UINT	iMsg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 355 of file ddvideo.cpp.

References CheckBoundries(), DDOverlayInit(), DDPrimaryInit(), DestroyOverlay(), DestroyPrimary(), DisplayError(), DrawOverlay(), g_dwXRatio, g_dwYRatio, g_OverlayFlags, g_OverlayFX, g_pBitmap, g_pDDSOverlay, g_pDDSPrimary, g_pUserProc, g_rcDst, g_rcSrc, g_sizex, g_sizey, g_video, L, mouse(), video::on_key(), video::on_mouse(), and video::updating.

Referenced by WinInit().

{
    PAINTSTRUCT                 ps;         // Structure for the paint message
    POINT                       p = {0, 0}; // Translation point for the window's client region
    HRESULT                     hRet;

    switch (iMsg)
    {
        case WM_MOVE:
            // Make sure we're not moving to be minimized - because otherwise
            // our ratio varialbes (g_dwXRatio and g_dwYRatio) will end up
            // being 0, and once we hit CheckBoundries it divides by 0.
            if (!IsIconic(hwnd))
            {
                g_rcSrc.left = 0;
                g_rcSrc.right = g_sizex;
                g_rcSrc.top = 0;
                g_rcSrc.bottom = g_sizey;
                GetClientRect(hwnd, &g_rcDst);
                g_dwXRatio = (g_rcDst.right - g_rcDst.left) * 1000 /
                             (g_rcSrc.right - g_rcSrc.left);
                g_dwYRatio = (g_rcDst.bottom - g_rcDst.top) * 1000 /
                             (g_rcSrc.bottom - g_rcSrc.top);
                ClientToScreen(hwnd, &p);
                g_rcDst.left = p.x;
                g_rcDst.top = p.y;
                g_rcDst.bottom += p.y;
                g_rcDst.right += p.x;
                CheckBoundries();
            }
            else
                // Else, hide the overlay... just in case we can't do
                // destination color keying, this will pull the overlay
                // off of the screen for the user.
                if (g_pDDSOverlay && g_pDDSPrimary)
                    g_pDDSOverlay->UpdateOverlay(NULL, g_pDDSPrimary, NULL, DDOVER_HIDE, NULL);
            // Check to make sure our window exists before we tell it to
            // repaint. This will fail the first time (while the window is being created).
            if (hwnd)
            {
                InvalidateRect(hwnd, NULL, FALSE);
                UpdateWindow(hwnd);
            }
            return 0L;

        case WM_SIZE:
            // Another check for the minimization action.  This check is
            // quicker though...
            if (wParam != SIZE_MINIMIZED)
            {
                GetClientRect(hwnd, &g_rcDst);
                ClientToScreen(hwnd, &p);
                g_rcDst.left = p.x;
                g_rcDst.top = p.y;
                g_rcDst.bottom += p.y;
                g_rcDst.right += p.x;
                g_rcSrc.left = 0;
                g_rcSrc.right = g_sizex;
                g_rcSrc.top = 0;
                g_rcSrc.bottom = g_sizey;
                // Here we multiply by 1000 to preserve 3 decimal places in the
                // division opperation (we picked 1000 to be on the same order
                // of magnitude as the stretch factor for easier comparisons)
                g_dwXRatio = (g_rcDst.right - g_rcDst.left) * 1000 /
                             (g_rcSrc.right - g_rcSrc.left);
                g_dwYRatio = (g_rcDst.bottom - g_rcDst.top) * 1000 /
                             (g_rcSrc.bottom - g_rcSrc.top);
                CheckBoundries();
            }
            return 0L;

        case WM_PAINT:
            BeginPaint(hwnd, &ps);
            // Check the primary surface to see if it's lost - if so you can
            // pretty much bet that the other surfaces are also lost - thus
            // restore EVERYTHING!  If we got our surfaces stolen by a full
            // screen app - then we'll destroy our primary - and won't be able
            // to initialize it again. When we get our next paint message (the
            // full screen app closed for example) we'll want to try to reinit
            // the surfaces again - that's why there is a check for
            // g_pDDSPrimary == NULL.  The other option, is that our program
            // went through this process, could init the primary again, but it
            // couldn't init the overlay, that's why there's a third check for
            // g_pDDSOverlay == NULL.  Make sure that the check for
            // !g_pDDSPrimary is BEFORE the IsLost call - that way if the
            // pointer is NULL (ie. !g_pDDSPrimary is TRUE) - the compiler
            // won't try to evaluate the IsLost function (which, since the
            // g_pDDSPrimary surface is NULL, would be bad...).
            if (!g_pDDSPrimary || (g_pDDSPrimary->IsLost() != DD_OK) ||
                (g_pDDSOverlay == NULL))
            {
                DestroyOverlay();
                DestroyPrimary();
                if (DDPrimaryInit())
                    if (DDOverlayInit())
                        if (!DrawOverlay())
                            DestroyOverlay();
            }
            // UpdateOverlay is how we put the overlay on the screen.
            if (g_pDDSOverlay && g_pDDSPrimary && g_video->updating)
            {
                hRet = g_pDDSOverlay->UpdateOverlay(&g_rcSrc, g_pDDSPrimary,
                                                    &g_rcDst, g_OverlayFlags,
                                                    &g_OverlayFX);
#ifdef _DEBUG
                if(hRet != DD_OK) DisplayError("Can't update overlay", hRet);
#endif
            }
            EndPaint(hwnd, &ps);
            return 0L;

        // process mouse and keyboard events
        case WM_LBUTTONDOWN:    mouse(1, lParam); break;
        case WM_LBUTTONUP:      mouse(-1, lParam); break;
        case WM_RBUTTONDOWN:    mouse(2, lParam); break;
        case WM_RBUTTONUP:      mouse(-2, lParam); break;
        case WM_MBUTTONDOWN:    mouse(3, lParam); break;
        case WM_MBUTTONUP:      mouse(-3, lParam); break;
        case WM_CHAR:           g_video->on_key(wParam); break;

        case WM_DISPLAYCHANGE:  return 0L;

        case WM_DESTROY:
            // Now, shut down the window...
            PostQuitMessage(0);
            return 0L;
    }
    return g_pUserProc? g_pUserProc(hwnd, iMsg, wParam, lParam) : DefWindowProc(hwnd, iMsg, wParam, lParam);
}

static bool loop_once ( video * v ) [static]

Definition at line 200 of file winvideo.h.

References video::calc_fps, g_fps, g_hAppWnd, g_msec, g_skips, g_updates, hAccelTable, video::running, video::title, and video::updating.

{
    // screen update notify
    if(int updates = g_updates) {
        g_updates = 0;
        if(g_video->updating) { g_skips += updates-1; g_fps++; }
        else g_skips += updates;
        UpdateWindow(g_hAppWnd);
    }
    // update fps
    DWORD msec = GetTickCount();
    if(v->calc_fps && msec >= g_msec+1000) {
        double sec = (msec - g_msec)/1000.0;
        char buffer[256], n = _snprintf(buffer, 128, "%s: %d fps", v->title, int(double(g_fps + g_skips)/sec));
        if(g_skips) _snprintf(buffer+n, 128, " - %d skipped = %d updates", int(g_skips/sec), int(g_fps/sec));
        SetWindowTextA(g_hAppWnd, buffer);
        g_msec = msec; g_skips = g_fps = 0;
    }
    // event processing, including painting
    MSG msg;
    if(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
    {
        if( msg.message == WM_QUIT ) { v->running = false; return false; }
        if( !hAccelTable || !TranslateAccelerator(msg.hwnd, hAccelTable, &msg) )
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
        return true; // try again
    }
    return false;
}

static bool RedirectIOToConsole ( void ) [static]

Definition at line 112 of file winvideo.h.

References MAX_CONSOLE_LINES.

{
    int hConHandle; size_t lStdHandle;
    CONSOLE_SCREEN_BUFFER_INFO coninfo;
    FILE *fp;
    // allocate a console for this app
    AllocConsole();

    // set the screen buffer to be big enough to let us scroll text
    GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &coninfo);
    coninfo.dwSize.Y = MAX_CONSOLE_LINES;
    SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE), coninfo.dwSize);

    // redirect unbuffered STDOUT to the console
    lStdHandle = (size_t)GetStdHandle(STD_OUTPUT_HANDLE);
    hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
    if(hConHandle <= 0) return false;
    fp = _fdopen( hConHandle, "w" );
    *stdout = *fp;
    setvbuf( stdout, NULL, _IONBF, 0 );

    // redirect unbuffered STDERR to the console
    lStdHandle = (size_t)GetStdHandle(STD_ERROR_HANDLE);
    hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
    if(hConHandle > 0) {
        fp = _fdopen( hConHandle, "w" );
        *stderr = *fp;
        setvbuf( stderr, NULL, _IONBF, 0 );
    }

    // redirect unbuffered STDIN to the console
    lStdHandle = (size_t)GetStdHandle(STD_INPUT_HANDLE);
    hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
    if(hConHandle > 0) {
        fp = _fdopen( hConHandle, "r" );
        *stdin = *fp;
        setvbuf( stdin, NULL, _IONBF, 0 );
    }

    // make cout, wcout, cin, wcin, wcerr, cerr, wclog and clog
    // point to console as well
    std::ios::sync_with_stdio();
    return true;
}

DWORD WINAPI thread_video ( LPVOID lpParameter )

Definition at line 193 of file winvideo.h.

References video::on_process().

{
    video *v = (video*)lpParameter;
    v->on_process();
    return 0;
}

bool WinInit	(	HINSTANCE	hInstance,
		int	nCmdShow,
		WNDCLASSEX *	uwc,
		const char *	title,
		bool	fixedsize
	)

Definition at line 73 of file winvideo.h.

References g_hAppWnd, g_pUserProc, g_sizex, g_sizey, InternalWndProc(), and RGBKEY.

{
    WNDCLASSEX wndclass;  // Our app's windows class
    if(uwc) {
        memcpy(&wndclass, uwc, sizeof(wndclass));
        g_pUserProc = uwc->lpfnWndProc;
    } else {
        memset(&wndclass, 0, sizeof(wndclass));
        wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
        wndclass.lpszClassName = title;
    }
    wndclass.cbSize = sizeof(wndclass);
    wndclass.hInstance = hInstance;
    wndclass.lpfnWndProc = InternalWndProc;
    wndclass.style |= CS_HREDRAW | CS_VREDRAW;
    wndclass.hbrBackground = CreateSolidBrush(RGBKEY);

    if( !RegisterClassExA(&wndclass) ) return false;
    int xaddend = GetSystemMetrics(fixedsize?SM_CXFIXEDFRAME:SM_CXFRAME)*2;
    int yaddend = GetSystemMetrics(fixedsize?SM_CYFIXEDFRAME:SM_CYFRAME)*2 + GetSystemMetrics(SM_CYCAPTION);
    if(wndclass.lpszMenuName) yaddend += GetSystemMetrics(SM_CYMENU);

    // Setup the new window's physical parameters - and tell Windows to create it
    g_hAppWnd = CreateWindowA(wndclass.lpszClassName,  // Window class name
                             title,  // Window caption
                             !fixedsize ? WS_OVERLAPPEDWINDOW :  // Window style
                             WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX,
                             CW_USEDEFAULT,  // Initial x pos: use default placement
                             0,              // Initial y pos: not used here
                             g_sizex+xaddend,// Initial x size
                             g_sizey+yaddend,// Initial y size
                             NULL,      // parent window handle
                             NULL,      // window menu handle
                             hInstance, // program instance handle
                             NULL);     // Creation parameters
    return g_hAppWnd != NULL;
}