#ifndef DMSIMPLE_H
#define DMSIMPLE_H

#include "dmlib.h"
#include <SDL_events.h>
#include <SDL_audio.h>
#include "dmres.h"
#include "dmtimeline.h"

#ifdef DM_USE_JSS
#include "jss.h"
#include "jssmod.h"
#include "jssmix.h"
#include "jssplr.h"
#endif


#ifdef __cplusplus
extern "C" {
#endif


typedef struct DMEngineData
{
    DMResourceLib *resources;

    DMResource *timeline;
    DMTimeline *tl;
    DMPreparedTimeline *ptl;

    int frameTime, frameCount,
        startTime, endTime,
        adjustTime, pauseTime;

    BOOL pauseFlag, paused, exitFlag;

    SDL_Surface *screen;
    SDL_Event event;
    SDL_AudioSpec optAfmt;
    int optScrWidth, optScrHeight, optVFlags, optBitDepth, optResFlags;
    char *optDataPath, *optPackFilename;

#ifdef DM_USE_JSS
    JSSMixer *dev;
    JSSPlayer *plr;
    int jss_format;
#endif

#ifdef DM_USE_TREMOR
    DMResource *audioRes;
    size_t audioPos;
#endif

    int    (*demoInit)(struct DMEngineData *);
    int    (*demoInitPreVideo)(struct DMEngineData *);
    int    (*demoInitPostVideo)(struct DMEngineData *);
    int    (*demoRender)(struct DMEngineData *);
    void   (*demoShutdown)(struct DMEngineData *);
    void   (*demoQuit)(struct DMEngineData *);

} DMEngineData;


#define engineGetResImage(eng, x, name) \
    do { \
        if ((x = (SDL_Surface *) engineGetResource(eng, name)) == NULL) \
            return DMERR_INIT_FAIL; \
    } while (0)

#define engineGetResModule(eng, x, name) \
    do { \
        if ((x = (JSSModule *) engineGetResource(eng, name)) == NULL) \
            return DMERR_INIT_FAIL; \
    } while (0)

#define engineFindResource(eng, name) dmres_find((eng)->resources, name)


int    engineClassifier(DMResource *res);
void * engineGetResource(DMEngineData *eng, const char *name);
int    engineGetTime(DMEngineData *eng, int t);
int    engineGetTimeDTi(DMEngineData *eng);
int    engineGetTick(DMEngineData *eng);
float  engineGetTimeDT(DMEngineData *eng);
int    demoPreInit(DMEngineData *eng);


#ifdef __cplusplus
}
#endif

#endif // DMSIMPLE_H