wingdi.c

VLC Player Source Code

/*****************************************************************************
 * wingdi.c : Win32 / WinCE GDI video output plugin for vlc
 *****************************************************************************
 * Copyright (C) 2002 the VideoLAN team
 * $Id: 310d3ea4657e282eb40700355a5ed199b6755f3a $
 *
 * Authors: Gildas Bazin <[e-mail]>
 *          Samuel Hocevar <[e-mail]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_interface.h>
#include <vlc_playlist.h>
#include <vlc_vout.h>

#include <commctrl.h>

#include "vout.h"

#ifdef MODULE_NAME_IS_wingapi
    typedef struct GXDisplayProperties {
        DWORD cxWidth;
        DWORD cyHeight;
        long cbxPitch;
        long cbyPitch;
        long cBPP;
        DWORD ffFormat;
    } GXDisplayProperties;

    typedef struct GXScreenRect {
        DWORD dwTop;
        DWORD dwLeft;
        DWORD dwWidth;
        DWORD dwHeight;
    } GXScreenRect;

#   define GX_FULLSCREEN    0x01
#   define GX_NORMALKEYS    0x02
#   define GX_LANDSCAPEKEYS 0x03

#   ifndef kfLandscape
#       define kfLandscape      0x8
#       define kfPalette        0x10
#       define kfDirect         0x20
#       define kfDirect555      0x40
#       define kfDirect565      0x80
#       define kfDirect888      0x100
#       define kfDirect444      0x200
#       define kfDirectInverted 0x400
#   endif
#endif /* MODULE_NAME_IS_wingapi */

#define MAX_DIRECTBUFFERS 10

#ifdef UNDER_CE
#ifndef WS_OVERLAPPEDWINDOW
#   define WS_OVERLAPPEDWINDOW 0xcf0000
#endif
#ifndef WS_EX_NOPARENTNOTIFY
#   define WS_EX_NOPARENTNOTIFY 4
#endif
#ifndef WS_EX_APPWINDOW
#define WS_EX_APPWINDOW 0x40000
#endif
#define SetWindowLongPtr SetWindowLong
#define GetWindowLongPtr GetWindowLong
#define GWLP_USERDATA GWL_USERDATA
#define AdjustWindowRect(a,b,c)
#endif //UNDER_CE

#ifndef WS_NONAVDONEBUTTON
#define WS_NONAVDONEBUTTON 0
#endif
/*****************************************************************************
 * Local prototypes
 *****************************************************************************/
static int  OpenVideo  ( vlc_object_t * );
static void CloseVideo ( vlc_object_t * );

static int  Init      ( vout_thread_t * );
static void End       ( vout_thread_t * );
static int  Manage    ( vout_thread_t * );
static void Render    ( vout_thread_t *, picture_t * );
#ifdef MODULE_NAME_IS_wingapi
static void FirstDisplayGAPI( vout_thread_t *, picture_t * );
static void DisplayGAPI( vout_thread_t *, picture_t * );
static int GAPILockSurface( vout_thread_t *, picture_t * );
static int GAPIUnlockSurface( vout_thread_t *, picture_t * );
#else
static void FirstDisplayGDI( vout_thread_t *, picture_t * );
static void DisplayGDI( vout_thread_t *, picture_t * );
#endif
static void SetPalette( vout_thread_t *, uint16_t *, uint16_t *, uint16_t * );

static void InitBuffers        ( vout_thread_t * );

#ifdef MODULE_NAME_IS_wingapi
#   define GXOpenDisplay p_vout->p_sys->GXOpenDisplay
#   define GXCloseDisplay p_vout->p_sys->GXCloseDisplay
#   define GXBeginDraw p_vout->p_sys->GXBeginDraw
#   define GXEndDraw p_vout->p_sys->GXEndDraw
#   define GXGetDisplayProperties p_vout->p_sys->GXGetDisplayProperties
#   define GXSuspend p_vout->p_sys->GXSuspend
#   define GXResume p_vout->p_sys->GXResume
#endif

#define DX_POSITION_CHANGE 0x1000

/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
vlc_module_begin();
    set_category( CAT_VIDEO );
    set_subcategory( SUBCAT_VIDEO_VOUT );
#ifdef MODULE_NAME_IS_wingapi
    set_shortname( "Windows GAPI" );
    set_description( N_("Windows GAPI video output") );
    set_capability( "video output", 20 );
#else
    set_shortname( "Windows GDI" );
    set_description( N_("Windows GDI video output") );
    set_capability( "video output", 10 );
#endif
    set_callbacks( OpenVideo, CloseVideo );
vlc_module_end();

/*****************************************************************************
 * OpenVideo: activate GDI video thread output method
 *****************************************************************************/
static int OpenVideo ( vlc_object_t *p_this )
{
    vout_thread_t * p_vout = (vout_thread_t *)p_this;
    vlc_value_t val;

    p_vout->p_sys = (vout_sys_t *)malloc( sizeof(vout_sys_t) );
    if( !p_vout->p_sys ) return VLC_ENOMEM;
    memset( p_vout->p_sys, 0, sizeof( vout_sys_t ) );

#ifdef MODULE_NAME_IS_wingapi
    /* Load GAPI */
    p_vout->p_sys->gapi_dll = LoadLibrary( _T("GX.DLL") );
    if( p_vout->p_sys->gapi_dll == NULL )
    {
        msg_Warn( p_vout, "failed loading gx.dll" );
        free( p_vout->p_sys );
        return VLC_EGENERIC;
    }

    GXOpenDisplay = (void *)GetProcAddress( p_vout->p_sys->gapi_dll,
        _T("?GXOpenDisplay@@YAHPAUHWND__@@K@Z") );
    GXCloseDisplay = (void *)GetProcAddress( p_vout->p_sys->gapi_dll,
        _T("?GXCloseDisplay@@YAHXZ") );
    GXBeginDraw = (void *)GetProcAddress( p_vout->p_sys->gapi_dll,
        _T("?GXBeginDraw@@YAPAXXZ") );
    GXEndDraw = (void *)GetProcAddress( p_vout->p_sys->gapi_dll,
        _T("?GXEndDraw@@YAHXZ") );
    GXGetDisplayProperties = (void *)GetProcAddress( p_vout->p_sys->gapi_dll,
        _T("?GXGetDisplayProperties@@YA?AUGXDisplayProperties@@XZ") );
    GXSuspend = (void *)GetProcAddress( p_vout->p_sys->gapi_dll,
        _T("?GXSuspend@@YAHXZ") );
    GXResume = GetProcAddress( p_vout->p_sys->gapi_dll,
        _T("?GXResume@@YAHXZ") );

    if( !GXOpenDisplay || !GXCloseDisplay || !GXBeginDraw || !GXEndDraw ||
        !GXGetDisplayProperties || !GXSuspend || !GXResume )
    {
        msg_Err( p_vout, "failed GetProcAddress on gapi.dll" );
        free( p_vout->p_sys );
        return VLC_EGENERIC;
    }

    msg_Dbg( p_vout, "GAPI DLL loaded" );

    p_vout->p_sys->render_width = p_vout->render.i_width;
    p_vout->p_sys->render_height = p_vout->render.i_height;
#endif

    p_vout->p_sys->p_event = (vlc_object_t *)
        vlc_object_create( p_vout, sizeof( vlc_object_t ) );
    if( !p_vout->p_sys->p_event )
    {
        free( p_vout->p_sys );
        return VLC_ENOMEM;
    }

    p_vout->pf_init = Init;
    p_vout->pf_end = End;
    p_vout->pf_manage = Manage;
    p_vout->pf_render = Render;
#ifdef MODULE_NAME_IS_wingapi
    p_vout->pf_display = FirstDisplayGAPI;

    p_vout->p_sys->b_focus = 0;
    p_vout->p_sys->b_parent_focus = 0;

#else
    p_vout->pf_display = FirstDisplayGDI;
#endif

    p_vout->p_sys->hwnd = p_vout->p_sys->hvideownd = NULL;
    p_vout->p_sys->hparent = p_vout->p_sys->hfswnd = NULL;
    p_vout->p_sys->i_changes = 0;
    vlc_mutex_init( &p_vout->p_sys->lock );
    SetRectEmpty( &p_vout->p_sys->rect_display );
    SetRectEmpty( &p_vout->p_sys->rect_parent );

    var_Create( p_vout, "video-title", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
    var_Create( p_vout, "disable-screensaver", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );

    p_vout->p_sys->b_cursor_hidden = 0;
    p_vout->p_sys->i_lastmoved = mdate();
    p_vout->p_sys->i_mouse_hide_timeout =
        var_GetInteger(p_vout, "mouse-hide-timeout") * 1000;

    /* Set main window's size */
    p_vout->p_sys->i_window_width = p_vout->i_window_width;
    p_vout->p_sys->i_window_height = p_vout->i_window_height;

    /* Create the EventThread, this thread is created by us to isolate
     * the Win32 PeekMessage function calls. We want to do this because
     * Windows can stay blocked inside this call for a long time, and when
     * this happens it thus blocks vlc's video_output thread.
     * Vout EventThread will take care of the creation of the video
     * window (because PeekMessage has to be called from the same thread which
     * created the window). */
    msg_Dbg( p_vout, "creating Vout EventThread" );
    p_vout->p_sys->p_event =
        vlc_object_create( p_vout, sizeof(event_thread_t) );
    p_vout->p_sys->p_event->p_vout = p_vout;
    if( vlc_thread_create( p_vout->p_sys->p_event, "VLC Vout Events Thread",
                           EventThread, 0, 1 ) )
    {
        msg_Err( p_vout, "cannot create Vout EventThread" );
        vlc_object_release( p_vout->p_sys->p_event );
        p_vout->p_sys->p_event = NULL;
        goto error;
    }

    if( p_vout->p_sys->p_event->b_error )
    {
        msg_Err( p_vout, "Vout EventThread failed" );
        goto error;
    }

    vlc_object_attach( p_vout->p_sys->p_event, p_vout );

    msg_Dbg( p_vout, "Vout EventThread running" );

#ifndef UNDER_CE
    /* Variable to indicate if the window should be on top of others */
    /* Trigger a callback right now */
    var_Get( p_vout, "video-on-top", &val );
    var_Set( p_vout, "video-on-top", val );

    /* disable screensaver by temporarily changing system settings */
    p_vout->p_sys->i_spi_lowpowertimeout = 0;
    p_vout->p_sys->i_spi_powerofftimeout = 0;
    p_vout->p_sys->i_spi_screensavetimeout = 0;
    var_Get( p_vout, "disable-screensaver", &val);
    if( val.b_bool ) {
        msg_Dbg(p_vout, "disabling screen saver");
        SystemParametersInfo(SPI_GETLOWPOWERTIMEOUT,
            0, &(p_vout->p_sys->i_spi_lowpowertimeout), 0);
        if( 0 != p_vout->p_sys->i_spi_lowpowertimeout ) {
            SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT, 0, NULL, 0);
        }
        SystemParametersInfo(SPI_GETPOWEROFFTIMEOUT, 0,
            &(p_vout->p_sys->i_spi_powerofftimeout), 0);
        if( 0 != p_vout->p_sys->i_spi_powerofftimeout ) {
            SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT, 0, NULL, 0);
        }
        SystemParametersInfo(SPI_GETSCREENSAVETIMEOUT, 0,
            &(p_vout->p_sys->i_spi_screensavetimeout), 0);
        if( 0 != p_vout->p_sys->i_spi_screensavetimeout ) {
            SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT, 0, NULL, 0);
        }
    }
#endif
    return VLC_SUCCESS;

error:
    CloseVideo( VLC_OBJECT(p_vout) );
    return VLC_EGENERIC;
}

/*****************************************************************************