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Prevent arts audio target from crashing/hanging SDL if the audio hardware

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isn't available.

   Fixes Bugzilla #372.

--HG--
branch : SDL-1.2
This commit is contained in:
Ryan C. Gordon
2007-06-14 14:09:25 +00:00
parent a96dc8aca5
commit cf04b769eb
1 changed files with 20 additions and 10 deletions
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30
src/audio/arts/SDL_artsaudio.c
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@@ -60,6 +60,8 @@ static int (*SDL_NAME(arts_stream_set))(arts_stream_t s, arts_parameter_t param,
static int (*SDL_NAME(arts_stream_get))(arts_stream_t s, arts_parameter_t param);
static int (*SDL_NAME(arts_write))(arts_stream_t s, const void *buffer, int count);
static void (*SDL_NAME(arts_close_stream))(arts_stream_t s);
static int (*SDL_NAME(arts_suspended))(void);
static const char *(*SDL_NAME(arts_error_text))(int errorcode);
static struct {
const char *name;
@@ -72,6 +74,8 @@ static struct {
{ "arts_stream_get", (void **)&SDL_NAME(arts_stream_get) },
{ "arts_write", (void **)&SDL_NAME(arts_write) },
{ "arts_close_stream", (void **)&SDL_NAME(arts_close_stream) },
{ "arts_suspended", (void **)&SDL_NAME(arts_suspended) },
{ "arts_error_text", (void **)&SDL_NAME(arts_error_text) },
};
static void UnloadARTSLibrary()
@@ -127,14 +131,14 @@ static int Audio_Available(void)
return available;
}
if ( SDL_NAME(arts_init)() == 0 ) {
#define ARTS_CRASH_HACK /* Play a stream so aRts doesn't crash */
#ifdef ARTS_CRASH_HACK
arts_stream_t stream2;
stream2=SDL_NAME(arts_play_stream)(44100, 16, 2, "SDL");
SDL_NAME(arts_write)(stream2, "", 0);
SDL_NAME(arts_close_stream)(stream2);
#endif
available = 1;
if ( SDL_NAME(arts_suspended)() ) {
/* Play a stream so aRts doesn't crash */
arts_stream_t stream2;
stream2=SDL_NAME(arts_play_stream)(44100, 16, 2, "SDL");
SDL_NAME(arts_write)(stream2, "", 0);
SDL_NAME(arts_close_stream)(stream2);
available = 1;
}
SDL_NAME(arts_free)();
}
UnloadARTSLibrary();
@@ -255,6 +259,7 @@ static int ARTS_OpenAudio(_THIS, SDL_AudioSpec *spec)
{
int bits, frag_spec;
Uint16 test_format, format;
int error_code;
/* Reset the timer synchronization flag */
frame_ticks = 0.0;
@@ -292,8 +297,13 @@ static int ARTS_OpenAudio(_THIS, SDL_AudioSpec *spec)
}
spec->format = test_format;
if ( SDL_NAME(arts_init)() != 0 ) {
SDL_SetError("Unable to initialize ARTS");
error_code = SDL_NAME(arts_init)();
if ( error_code != 0 ) {
SDL_SetError("Unable to initialize ARTS: %s", SDL_NAME(arts_error_text)(error_code));
return(-1);
}
if ( ! SDL_NAME(arts_suspended)() ) {
SDL_SetError("ARTS can not open audio device");
return(-1);
}
stream = SDL_NAME(arts_play_stream)(spec->freq, bits, spec->channels, "SDL");