#include <stdlib.h>
#include <stdio.h>
#include <SDL/SDL.h>
#include <FMOD/fmod.h>

int main(int argc,char *argv[])
{
  SDL_Surface *screen = NULL,*pixel = NULL;
  SDL_Event event;
  FSOUND_STREAM *music = NULL;
  int continuer = 1,time = SDL_GetTicks();
  float *spectre = NULL;
  float frequence = 0;
  SDL_Rect position = {0};
  long i = 0,j = 0;

  FSOUND_Init(44100,32,0);

  music = FSOUND_Stream_Open("music.mp3",0,0,0);
  FSOUND_DSP_SetActive(FSOUND_DSP_GetFFTUnit(),1);
  FSOUND_Stream_Play(FSOUND_FREE,music);

  SDL_Init(SDL_INIT_VIDEO);

  screen = SDL_SetVideoMode(512,255,32,SDL_HWSURFACE);

  pixel = SDL_CreateRGBSurface(SDL_HWSURFACE,1,1,32,0,0,0,0);

      while(continuer)
      {
        SDL_PollEvent(&event);

            switch(event.type)
            {
              case SDL_QUIT :
                continuer = 0;
                break;
            }

            if(SDL_GetTicks() - time >= 25)
            {
              spectre = FSOUND_DSP_GetSpectrum();
              SDL_FillRect(screen,NULL,SDL_MapRGB(screen->format,0,0,0));

                  for(i = 0;i < 512;i ++);
                  {
                    frequence = spectre[i] * 20 * screen->h;
                    position.x = i;

                        if(frequence > screen->h)
                          frequence = screen->h;

                        for(j = 0;j <= frequence;j ++)
                        {
                          position.y = 255 - j;
                          SDL_FillRect(pixel,NULL,SDL_MapRGB(pixel->format,j,255 - j,0));
                          SDL_BlitSurface(pixel,NULL,screen,&position);
                        }
                  }

              SDL_Flip(screen);
              time = SDL_GetTicks();
            }
      }

  SDL_FreeSurface(pixel);
  SDL_Quit();
  FSOUND_Stream_Stop(music);
  FSOUND_Stream_Close(music);
  FSOUND_DSP_SetActive(FSOUND_DSP_GetFFTUnit(),0);
  FSOUND_Close();
  return EXIT_SUCCESS;
}