wingdi.c

uclinux 下的vlc播放器源代码

static int Init( vout_thread_t *p_vout )
{
    picture_t *p_pic;

    p_vout->p_sys->rect_display.left = 0;
    p_vout->p_sys->rect_display.top = 0;
    p_vout->p_sys->rect_display.right  = GetSystemMetrics(SM_CXSCREEN);
    p_vout->p_sys->rect_display.bottom = GetSystemMetrics(SM_CYSCREEN);

    p_vout->p_sys->b_video_display = VLC_TRUE;
    p_vout->p_sys->p_event->b_die = VLC_FALSE;

    I_OUTPUTPICTURES = 0;

    /* Initialize the output structure */
    switch( p_vout->p_sys->i_depth )
    {
    case 8:
        p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
        p_vout->output.pf_setpalette = SetPalette;
        break;
    case 15:
        p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5');
        p_vout->output.i_rmask  = 0x7c00;
        p_vout->output.i_gmask  = 0x03e0;
        p_vout->output.i_bmask  = 0x001f;
        break;
    case 16:
        p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');
        p_vout->output.i_rmask  = 0xf800;
        p_vout->output.i_gmask  = 0x07e0;
        p_vout->output.i_bmask  = 0x001f;
        break;
    case 24:
        p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4');
        p_vout->output.i_rmask  = 0x00ff0000;
        p_vout->output.i_gmask  = 0x0000ff00;
        p_vout->output.i_bmask  = 0x000000ff;
        break;
    case 32:
        p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2');
        p_vout->output.i_rmask  = 0x00ff0000;
        p_vout->output.i_gmask  = 0x0000ff00;
        p_vout->output.i_bmask  = 0x000000ff;
        break;
    default:
        msg_Err( p_vout, "screen depth %i not supported",
                 p_vout->p_sys->i_depth );
        return VLC_EGENERIC;
        break;
    }

    p_pic = &p_vout->p_picture[0];

#ifdef MODULE_NAME_IS_wingapi
    p_vout->output.i_width  = 0;
    p_vout->output.i_height = 0;
    p_pic->pf_lock  = GAPILockSurface;
    p_pic->pf_unlock = GAPIUnlockSurface;
    Manage( p_vout );
    GAPILockSurface( p_vout, p_pic );
    p_vout->i_changes = 0;
    p_vout->output.i_width  = p_vout->p_sys->render_width;
    p_vout->output.i_height = p_vout->p_sys->render_height;

#else
    p_vout->output.i_width  = p_vout->render.i_width;
    p_vout->output.i_height = p_vout->render.i_height;

    p_vout->fmt_out = p_vout->fmt_in;
    p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
#endif

    p_vout->output.i_aspect = p_vout->render.i_aspect;

    p_pic->p->p_pixels = p_vout->p_sys->p_pic_buffer;
    p_pic->p->i_lines = p_vout->output.i_height;
    p_pic->p->i_visible_lines = p_vout->output.i_height;
    p_pic->p->i_pitch = p_vout->p_sys->i_pic_pitch;
    p_pic->p->i_pixel_pitch = p_vout->p_sys->i_pic_pixel_pitch;
    p_pic->p->i_visible_pitch = p_vout->output.i_width *
        p_pic->p->i_pixel_pitch;
    p_pic->i_planes = 1;
    p_pic->i_status = DESTROYED_PICTURE;
    p_pic->i_type   = DIRECT_PICTURE;

    PP_OUTPUTPICTURE[ I_OUTPUTPICTURES++ ] = p_pic;

    return VLC_SUCCESS;
}

/*****************************************************************************
 * End: terminate video thread output method
 *****************************************************************************/
static void End( vout_thread_t *p_vout )
{
}

/*****************************************************************************
 * Manage: handle events
 *****************************************************************************
 * This function should be called regularly by video output thread. It manages
 * console events. It returns a non null value on error.
 *****************************************************************************/
static int Manage( vout_thread_t *p_vout )
{
#ifndef UNDER_CE
    WINDOWPLACEMENT window_placement;
#endif

    /* If we do not control our window, we check for geometry changes
     * ourselves because the parent might not send us its events. */
    if( p_vout->p_sys->hparent && !p_vout->b_fullscreen )
    {
        RECT rect_parent;
        POINT point;

        GetClientRect( p_vout->p_sys->hparent, &rect_parent );
        point.x = point.y = 0;
        ClientToScreen( p_vout->p_sys->hparent, &point );
        OffsetRect( &rect_parent, point.x, point.y );

        if( !EqualRect( &rect_parent, &p_vout->p_sys->rect_parent ) )
        {
            int i_x, i_y, i_width, i_height;
            p_vout->p_sys->rect_parent = rect_parent;

            /* This one is to force the update even if only
             * the position has changed */
            SetWindowPos( p_vout->p_sys->hwnd, 0, 1, 1,
                          rect_parent.right - rect_parent.left,
                          rect_parent.bottom - rect_parent.top, 0 );

            SetWindowPos( p_vout->p_sys->hwnd, 0, 0, 0,
                          rect_parent.right - rect_parent.left,
                          rect_parent.bottom - rect_parent.top, 0 );

            vout_PlacePicture( p_vout, rect_parent.right - rect_parent.left,
                               rect_parent.bottom - rect_parent.top,
                               &i_x, &i_y, &i_width, &i_height );

            SetWindowPos( p_vout->p_sys->hvideownd, HWND_TOP,
                          i_x, i_y, i_width, i_height, 0 );
        }
    }

    /* We used to call the Win32 PeekMessage function here to read the window
     * messages. But since window can stay blocked into this function for a
     * long time (for example when you move your window on the screen), I
     * decided to isolate PeekMessage in another thread. */

    /*
     * Fullscreen change
     */
    if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE
        || p_vout->p_sys->i_changes & VOUT_FULLSCREEN_CHANGE )
    {
        int i_style = 0;
        vlc_value_t val;

        HWND hwnd = (p_vout->p_sys->hparent && p_vout->p_sys->hfswnd) ?
            p_vout->p_sys->hfswnd : p_vout->p_sys->hwnd;

        p_vout->b_fullscreen = ! p_vout->b_fullscreen;

        /* We need to switch between Maximized and Normal sized window */
#ifndef UNDER_CE
        window_placement.length = sizeof(WINDOWPLACEMENT);
        GetWindowPlacement( hwnd, &window_placement );
#endif
        if( p_vout->b_fullscreen )
        {
#ifndef UNDER_CE
            /* Change window style, no borders and no title bar */
            int i_style = WS_CLIPCHILDREN | WS_VISIBLE;
            SetWindowLong( hwnd, GWL_STYLE, i_style );

            if( p_vout->p_sys->hparent )
            {
                /* Retrieve current window position so fullscreen will happen
                 * on the right screen */
                POINT point = {0,0};
                RECT rect;
                ClientToScreen( p_vout->p_sys->hwnd, &point );
                GetClientRect( p_vout->p_sys->hwnd, &rect );
                SetWindowPos( hwnd, 0, point.x, point.y,
                              rect.right, rect.bottom,
                              SWP_NOZORDER|SWP_FRAMECHANGED );
                GetWindowPlacement( hwnd, &window_placement );
            }

            /* Maximize window */
            window_placement.showCmd = SW_SHOWMAXIMIZED;
            SetWindowPlacement( hwnd, &window_placement );
            SetWindowPos( hwnd, 0, 0, 0, 0, 0,
                          SWP_NOMOVE|SWP_NOSIZE|SWP_NOZORDER|SWP_FRAMECHANGED);
#endif

            if( p_vout->p_sys->hparent )
            {
                RECT rect;
                GetClientRect( hwnd, &rect );
                SetParent( p_vout->p_sys->hwnd, hwnd );
                SetWindowPos( p_vout->p_sys->hwnd, 0, 0, 0,
                              rect.right, rect.bottom,
                              SWP_NOZORDER|SWP_FRAMECHANGED );
            }

            ShowWindow( hwnd, SW_SHOW );
            SetForegroundWindow( hwnd );
        }
        else
        {
            /* Change window style, no borders and no title bar */
            //SetWindowLong( hwnd, GWL_STYLE, p_vout->p_sys->i_window_style );

#ifndef UNDER_CE
            /* Normal window */
            window_placement.showCmd = SW_SHOWNORMAL;
            SetWindowPlacement( hwnd, &window_placement );
            SetWindowPos( hwnd, 0, 0, 0, 0, 0,
                          SWP_NOMOVE|SWP_NOSIZE|SWP_NOZORDER|SWP_FRAMECHANGED);
#endif

            if( p_vout->p_sys->hparent )
            {
                RECT rect;
                GetClientRect( p_vout->p_sys->hparent, &rect );
                SetParent( p_vout->p_sys->hwnd, p_vout->p_sys->hparent );
                SetWindowPos( p_vout->p_sys->hwnd, 0, 0, 0,
                              rect.right, rect.bottom,
                              SWP_NOZORDER|SWP_FRAMECHANGED );

                ShowWindow( hwnd, SW_HIDE );
                SetForegroundWindow( p_vout->p_sys->hparent );
            }

            /* Make sure the mouse cursor is displayed */
            //PostMessage( p_vout->p_sys->hwnd, WM_VLC_SHOW_MOUSE, 0, 0 );
        }

        /* Change window style, borders and title bar */
        ShowWindow( p_vout->p_sys->hwnd, SW_SHOW );
        UpdateWindow( p_vout->p_sys->hwnd );

        /* Update the object variable and trigger callback */
        val.b_bool = p_vout->b_fullscreen;
        var_Set( p_vout, "fullscreen", val );

        p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
        p_vout->p_sys->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
    }

    return VLC_SUCCESS;
}

/*****************************************************************************
 * Render: render previously calculated output
 *****************************************************************************/
static void Render( vout_thread_t *p_vout, picture_t *p_pic )
{
    /* No need to do anything, the fake direct buffers stay as they are */
}

/*****************************************************************************
 * Display: displays previously rendered output
 *****************************************************************************/
#define rect_src p_vout->p_sys->rect_src
#define rect_src_clipped p_vout->p_sys->rect_src_clipped
#define rect_dest p_vout->p_sys->rect_dest
#define rect_dest_clipped p_vout->p_sys->rect_dest_clipped

#ifndef MODULE_NAME_IS_wingapi
static void DisplayGDI( vout_thread_t *p_vout, picture_t *p_pic )
{
    vout_sys_t *p_sys = p_vout->p_sys;
    RECT rect_dst = rect_dest_clipped;
    HDC hdc = GetDC( p_sys->hvideownd );

    OffsetRect( &rect_dst, -rect_dest.left, -rect_dest.top );
    SelectObject( p_sys->off_dc, p_sys->off_bitmap );

    if( rect_dest_clipped.right - rect_dest_clipped.left !=
        rect_src_clipped.right - rect_src_clipped.left ||
        rect_dest_clipped.bottom - rect_dest_clipped.top !=
        rect_src_clipped.bottom - rect_src_clipped.top )
    {
        StretchBlt( hdc, rect_dst.left, rect_dst.top,
                    rect_dst.right, rect_dst.bottom,
                    p_sys->off_dc, rect_src_clipped.left, rect_src_clipped.top,
                    rect_src_clipped.right, rect_src_clipped.bottom, SRCCOPY );
    }
    else
    {
        BitBlt( hdc, rect_dst.left, rect_dst.top,
                rect_dst.right, rect_dst.bottom,
                p_sys->off_dc, rect_src_clipped.left,
                rect_src_clipped.top, SRCCOPY );
    }

    ReleaseDC( p_sys->hwnd, hdc );
}
#else

static int GAPILockSurface( vout_thread_t *p_vout, picture_t *p_pic )
{
    vout_sys_t *p_sys = p_vout->p_sys;
    int i_x, i_y, i_width, i_height;
    RECT video_rect;
    POINT point;

    /* Undo the display */
    if( ( GetForegroundWindow() != GetParent(p_sys->hwnd) ) ||
        ( p_sys->b_video_display == VLC_FALSE ) )
    {
        //return VLC_EGENERIC;
    }

    GetClientRect( p_sys->hwnd, &video_rect);
    vout_PlacePicture( p_vout, video_rect.right - video_rect.left,
                       video_rect.bottom - video_rect.top,
                       &i_x, &i_y, &i_width, &i_height );
    point.x = point.y = 0;
    ClientToScreen( p_sys->hwnd, &point );
    i_x += point.x + video_rect.left;
    i_y += point.y + video_rect.top;

    if( i_width != p_vout->output.i_width ||
        i_height != p_vout->output.i_height )
    {
        GXDisplayProperties gxdisplayprop = GXGetDisplayProperties();

        p_sys->render_width = i_width;
        p_sys->render_height = i_height;
        p_vout->i_changes |= VOUT_SIZE_CHANGE;

        msg_Dbg( p_vout, "vout size change (%ix%i -> %ix%i)",
                 i_width, i_height, p_vout->output.i_width,
                 p_vout->output.i_height );

        p_vout->p_sys->i_pic_pixel_pitch = gxdisplayprop.cbxPitch;