root/modules/sdl_out/sdl_out.c

DEFINITIONS

1. SDLOUT_InitSDL
2. SDLOUT_CloseSDL
3. QueryInterfaces
4. LoadInterface
5. ShutdownInterface

/*
 *                      GPAC - Multimedia Framework C SDK
 *
 *                      Authors: Jean Le Feuvre
 *                      Copyright (c) Telecom ParisTech 2000-2012
 *                                      All rights reserved
 *
 *  This file is part of GPAC / SDL audio and video module
 *
 *  GPAC is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  GPAC 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 Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#include "sdl_out.h"

static Bool is_init = GF_FALSE;
static u32 num_users = 0;

#if (defined(WIN32) || defined(_WIN32_WCE)) && !defined(__GNUC__)
#if SDL_VERSION_ATLEAST(2,0,0)
#pragma comment(lib, "SDL2")
#else
#pragma comment(lib, "SDL")
#endif
#endif

Bool SDLOUT_InitSDL()
{
        if (is_init) {
                num_users++;
                return GF_TRUE;
        }
        if (SDL_Init(0) < 0) return GF_FALSE;
        is_init = GF_TRUE;
        num_users++;
        return GF_TRUE;
}

void SDLOUT_CloseSDL()
{
        if (!is_init) return;
        assert(num_users);
        num_users--;
        if (!num_users) SDL_Quit();
        return;
}


/*interface query*/
GPAC_MODULE_EXPORT
const u32 *QueryInterfaces()
{
        static u32 si [] = {
                GF_VIDEO_OUTPUT_INTERFACE,
                GF_AUDIO_OUTPUT_INTERFACE,
                0
        };
        return si;
}

/*interface create*/
GPAC_MODULE_EXPORT
GF_BaseInterface *LoadInterface(u32 InterfaceType)
{
        if (InterfaceType == GF_VIDEO_OUTPUT_INTERFACE) return (GF_BaseInterface*)SDL_NewVideo();
        if (InterfaceType == GF_AUDIO_OUTPUT_INTERFACE) return (GF_BaseInterface*)SDL_NewAudio();
        return NULL;
}

/*interface destroy*/
GPAC_MODULE_EXPORT
void ShutdownInterface(GF_BaseInterface *ifce)
{
        switch (ifce->InterfaceType) {
        case GF_VIDEO_OUTPUT_INTERFACE:
                SDL_DeleteVideo(ifce);
                break;
        case GF_AUDIO_OUTPUT_INTERFACE:
                SDL_DeleteAudio(ifce);
                break;
        }
}

GPAC_MODULE_STATIC_DECLARATION( sdl_out )