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#include "SDL.h"
#ifdef ROCKBOX
#ifndef COMBINED_SDL
#define main my_main
#else
#define main testsound_main
#endif
#else
#include <math.h>
#endif
double phase = 0;
void fill_audio(void *udata, Uint8 *stream, int len)
{
for(int i = 0; i < len; ++i)
{
*stream++ = 127 * sin(phase);
phase += M_PI / 100;
if(phase > 2 * M_PI)
phase -= 2 * M_PI;
}
}
int main(int argc, char *argv[])
{
SDL_Surface *screen;
SDL_bool quit = SDL_FALSE, first_time = SDL_TRUE;
SDL_Cursor *cursor[3];
int current;
/* Load the SDL library */
if ( SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) < 0 ) {
fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());
return(1);
}
screen = SDL_SetVideoMode(LCD_WIDTH,LCD_HEIGHT,24,SDL_ANYFORMAT);
if (screen==NULL) {
fprintf(stderr, "Couldn't initialize video mode: %s\n",SDL_GetError());
return(1);
}
SDL_FillRect(screen, NULL, 0xff00ff);
SDL_AudioSpec wanted;
/* Set the audio format */
wanted.freq = 44100;
wanted.format = AUDIO_S8;
wanted.channels = 2; /* 1 = mono, 2 = stereo */
wanted.samples = 1024; /* Good low-latency value for callback */
wanted.callback = fill_audio;
wanted.userdata = NULL;
/* Open the audio device, forcing the desired format */
if ( SDL_OpenAudio(&wanted, NULL) < 0 ) {
fprintf(stderr, "Couldn't open audio: %s\n", SDL_GetError());
return(-1);
}
SDL_PauseAudio(0);
while (!quit) {
SDL_Event event;
while (SDL_PollEvent(&event)) {
switch(event.type) {
case SDL_MOUSEBUTTONDOWN:
case SDL_KEYDOWN:
case SDL_QUIT:
quit = SDL_TRUE;
break;
}
}
SDL_Flip(screen);
SDL_Delay(10);
}
SDL_CloseAudio();
SDL_Quit();
return(0);
}
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