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Added init check

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This commit is contained in:
andreja6
2018-04-27 00:04:04 -07:00
parent 6d49e266dd
commit e9c7607a4b
1 changed files with 47 additions and 38 deletions
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83
AudioPlayer.cpp
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@@ -6,6 +6,7 @@
#include <string.h> #include <string.h>
#define NUM_SOUNDS 10 #define NUM_SOUNDS 10
static SDL_AudioSpec fmt; static SDL_AudioSpec fmt;
static bool initiated = false;
AudioPlayer::AudioPlayer(void) AudioPlayer::AudioPlayer(void)
{ {
@@ -19,6 +20,7 @@ AudioPlayer::~AudioPlayer(void)
void AudioPlayer::init() void AudioPlayer::init()
{ {
initiated = true;
extern void mixaudio(void *unused, Uint8 *stream, int len); extern void mixaudio(void *unused, Uint8 *stream, int len);
fmt.freq = 22050; fmt.freq = 22050;
fmt.format = AUDIO_S16; fmt.format = AUDIO_S16;
@@ -59,46 +61,53 @@ void mixaudio(void *unused, Uint8 *stream, int len)
void AudioPlayer::PlaySound(std::string fileString) void AudioPlayer::PlaySound(std::string fileString)
{ {
char *file = new char[fileString.length() + 1]; if(initiated)
strcpy(file, fileString.c_str()); {
char *file = new char[fileString.length() + 1];
strcpy(file, fileString.c_str());
int index; int index;
SDL_AudioSpec wave; SDL_AudioSpec wave;
Uint8 *data; Uint8 *data;
Uint32 dlen; Uint32 dlen;
SDL_AudioCVT cvt; SDL_AudioCVT cvt;
/* Look for an empty (or finished) sound slot */ /* Look for an empty (or finished) sound slot */
for ( index=0; index<NUM_SOUNDS; ++index ) { for ( index=0; index<NUM_SOUNDS; ++index ) {
if ( sounds[index].dpos == sounds[index].dlen ) { if ( sounds[index].dpos == sounds[index].dlen ) {
break; break;
} }
} }
if ( index == NUM_SOUNDS ) if ( index == NUM_SOUNDS )
return; return;
/* Load the sound file and convert it to 16-bit stereo at 22kHz */ /* Load the sound file and convert it to 16-bit stereo at 22kHz */
if ( SDL_LoadWAV(file, &wave, &data, &dlen) == NULL ) { if ( SDL_LoadWAV(file, &wave, &data, &dlen) == NULL ) {
fprintf(stderr, "Couldn't load %s: %s\n", file, SDL_GetError()); fprintf(stderr, "Couldn't load %s: %s\n", file, SDL_GetError());
return; return;
} }
SDL_BuildAudioCVT(&cvt, wave.format, wave.channels, wave.freq, SDL_BuildAudioCVT(&cvt, wave.format, wave.channels, wave.freq,
AUDIO_S16, 2, fmt.freq); AUDIO_S16, 2, fmt.freq);
cvt.buf = (Uint8*)malloc(dlen*cvt.len_mult); cvt.buf = (Uint8*)malloc(dlen*cvt.len_mult);
memcpy(cvt.buf, data, dlen); memcpy(cvt.buf, data, dlen);
cvt.len = dlen; cvt.len = dlen;
SDL_ConvertAudio(&cvt); SDL_ConvertAudio(&cvt);
SDL_FreeWAV(data); SDL_FreeWAV(data);
/* Put the sound data in the slot (it starts playing immediately) */ /* Put the sound data in the slot (it starts playing immediately) */
if ( sounds[index].data ) { if ( sounds[index].data ) {
free(sounds[index].data); free(sounds[index].data);
} }
SDL_LockAudio(); SDL_LockAudio();
sounds[index].data = cvt.buf; sounds[index].data = cvt.buf;
sounds[index].dlen = cvt.len_cvt; sounds[index].dlen = cvt.len_cvt;
sounds[index].dpos = 0; sounds[index].dpos = 0;
SDL_UnlockAudio(); SDL_UnlockAudio();
delete [] file; delete [] file;
}
else
{
OutputDebugString("Audio player not initialized, sound will not play\r\n");
}
} }