Mercurial > sdl-ios-xcode
diff src/audio/SDL_audio.c @ 2060:866052b01ee5
indent is evil
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sat, 28 Oct 2006 16:48:03 +0000 |
parents | 716cf90f24a0 |
children | dbfa1ebd73b0 |
line wrap: on
line diff
--- a/src/audio/SDL_audio.c Sat Oct 28 16:41:54 2006 +0000 +++ b/src/audio/SDL_audio.c Sat Oct 28 16:48:03 2006 +0000 @@ -144,10 +144,11 @@ NULL }; -static SDL_AudioDevice *get_audio_device(SDL_AudioDeviceID id) +static SDL_AudioDevice * +get_audio_device(SDL_AudioDeviceID id) { id--; - if ( (id >= SDL_arraysize(open_devices)) || (open_devices[id] == NULL) ) { + if ((id >= SDL_arraysize(open_devices)) || (open_devices[id] == NULL)) { SDL_SetError("Invalid audio device ID"); return NULL; } @@ -157,14 +158,40 @@ /* stubs for audio drivers that don't need a specific entry point... */ -static int SDL_AudioDetectDevices_Default(int iscapture) { return -1; } -static void SDL_AudioThreadInit_Default(_THIS) { /* no-op. */ } -static void SDL_AudioWaitDevice_Default(_THIS) { /* no-op. */ } -static void SDL_AudioPlayDevice_Default(_THIS) { /* no-op. */ } -static Uint8 *SDL_AudioGetDeviceBuf_Default(_THIS) { return NULL; } -static void SDL_AudioWaitDone_Default(_THIS) { /* no-op. */ } -static void SDL_AudioCloseDevice_Default(_THIS) { /* no-op. */ } -static void SDL_AudioDeinitialize_Default(void) { /* no-op. */ } +static int +SDL_AudioDetectDevices_Default(int iscapture) +{ + return -1; +} +static void +SDL_AudioThreadInit_Default(_THIS) +{ /* no-op. */ +} +static void +SDL_AudioWaitDevice_Default(_THIS) +{ /* no-op. */ +} +static void +SDL_AudioPlayDevice_Default(_THIS) +{ /* no-op. */ +} +static Uint8 * +SDL_AudioGetDeviceBuf_Default(_THIS) +{ + return NULL; +} +static void +SDL_AudioWaitDone_Default(_THIS) +{ /* no-op. */ +} +static void +SDL_AudioCloseDevice_Default(_THIS) +{ /* no-op. */ +} +static void +SDL_AudioDeinitialize_Default(void) +{ /* no-op. */ +} static int SDL_AudioOpenDevice_Default(_THIS, const char *devname, int iscapture) @@ -172,7 +199,8 @@ return 0; } -static const char *SDL_AudioGetDeviceName_Default(int index, int iscapture) +static const char * +SDL_AudioGetDeviceName_Default(int index, int iscapture) { SDL_SetError("No such device"); return NULL; @@ -197,14 +225,15 @@ } -static void finalize_audio_entry_points(void) +static void +finalize_audio_entry_points(void) { /* * Fill in stub functions for unused driver entry points. This lets us * blindly call them without having to check for validity first. */ - #define FILL_STUB(x) \ +#define FILL_STUB(x) \ if (current_audio.impl.x == NULL) { \ current_audio.impl.x = SDL_Audio##x##_Default; \ } @@ -220,7 +249,7 @@ FILL_STUB(LockDevice); FILL_STUB(UnlockDevice); FILL_STUB(Deinitialize); - #undef FILL_STUB +#undef FILL_STUB } @@ -317,7 +346,7 @@ static SDL_AudioFormat SDL_ParseAudioFormat(const char *string) { - #define CHECK_FMT_STRING(x) if (strcmp(string, #x) == 0) return AUDIO_##x +#define CHECK_FMT_STRING(x) if (strcmp(string, #x) == 0) return AUDIO_##x CHECK_FMT_STRING(U8); CHECK_FMT_STRING(S8); CHECK_FMT_STRING(U16LSB); @@ -336,7 +365,7 @@ CHECK_FMT_STRING(F32MSB); CHECK_FMT_STRING(F32SYS); CHECK_FMT_STRING(F32); - #undef CHECK_FMT_STRING +#undef CHECK_FMT_STRING return 0; } @@ -363,11 +392,11 @@ int tried_to_init = 0; if (SDL_WasInit(SDL_INIT_AUDIO)) { - SDL_AudioQuit(); /* shutdown driver if already running. */ + SDL_AudioQuit(); /* shutdown driver if already running. */ } - SDL_memset(¤t_audio, '\0', sizeof (current_audio)); - SDL_memset(open_devices, '\0', sizeof (open_devices)); + SDL_memset(¤t_audio, '\0', sizeof(current_audio)); + SDL_memset(open_devices, '\0', sizeof(open_devices)); /* Select the proper audio driver */ if (driver_name == NULL) { @@ -377,13 +406,13 @@ for (i = 0; (!initialized) && (bootstrap[i]); ++i) { /* make sure we should even try this driver before doing so... */ const AudioBootStrap *backend = bootstrap[i]; - if ( ((driver_name) && (SDL_strcasecmp(backend->name, driver_name))) || - ((!driver_name) && (backend->demand_only)) ) { + if (((driver_name) && (SDL_strcasecmp(backend->name, driver_name))) || + ((!driver_name) && (backend->demand_only))) { continue; } tried_to_init = 1; - SDL_memset(¤t_audio, 0, sizeof (current_audio)); + SDL_memset(¤t_audio, 0, sizeof(current_audio)); current_audio.name = backend->name; current_audio.desc = backend->desc; initialized = backend->init(¤t_audio.impl); @@ -399,8 +428,8 @@ } } - SDL_memset(¤t_audio, 0, sizeof (current_audio)); - return (-1); /* No driver was available, so fail. */ + SDL_memset(¤t_audio, 0, sizeof(current_audio)); + return (-1); /* No driver was available, so fail. */ } finalize_audio_entry_points(); @@ -471,7 +500,7 @@ static void -close_audio_device(SDL_AudioDevice *device) +close_audio_device(SDL_AudioDevice * device) { device->enabled = 0; if (device->thread != NULL) { @@ -500,9 +529,9 @@ * Returns non-zero if okay, zero on fatal parameters in (orig). */ static int -prepare_audiospec(const SDL_AudioSpec *orig, SDL_AudioSpec *prepared) +prepare_audiospec(const SDL_AudioSpec * orig, SDL_AudioSpec * prepared) { - SDL_memcpy(prepared, orig, sizeof (SDL_AudioSpec)); + SDL_memcpy(prepared, orig, sizeof(SDL_AudioSpec)); if (orig->callback == NULL) { SDL_SetError("SDL_OpenAudio() passed a NULL callback"); @@ -511,26 +540,26 @@ if (orig->freq == 0) { const char *env = SDL_getenv("SDL_AUDIO_FREQUENCY"); - if ( (!env) || ((prepared->freq = SDL_atoi(env)) == 0) ) { - prepared->freq = 22050; /* a reasonable default */ + if ((!env) || ((prepared->freq = SDL_atoi(env)) == 0)) { + prepared->freq = 22050; /* a reasonable default */ } } if (orig->format == 0) { const char *env = SDL_getenv("SDL_AUDIO_FORMAT"); if ((!env) || ((prepared->format = SDL_ParseAudioFormat(env)) == 0)) { - prepared->format = AUDIO_S16; /* a reasonable default */ + prepared->format = AUDIO_S16; /* a reasonable default */ } } switch (orig->channels) { - case 0: { - const char *env = SDL_getenv("SDL_AUDIO_CHANNELS"); - if ( (!env) || ((prepared->channels = SDL_atoi(env)) == 0) ) { - prepared->channels = 2; /* a reasonable default */ + case 0:{ + const char *env = SDL_getenv("SDL_AUDIO_CHANNELS"); + if ((!env) || ((prepared->channels = SDL_atoi(env)) == 0)) { + prepared->channels = 2; /* a reasonable default */ + } + break; } - break; - } case 1: /* Mono */ case 2: /* Stereo */ case 4: /* surround */ @@ -543,7 +572,7 @@ if (orig->samples == 0) { const char *env = SDL_getenv("SDL_AUDIO_SAMPLES"); - if ( (!env) || ((prepared->samples = (Uint16) SDL_atoi(env)) == 0) ) { + if ((!env) || ((prepared->samples = (Uint16) SDL_atoi(env)) == 0)) { /* Pick a default of ~46 ms at desired frequency */ /* !!! FIXME: remove this when the non-Po2 resampling is in. */ const int samples = (prepared->freq / 1000) * 46; @@ -564,8 +593,8 @@ static SDL_AudioDeviceID open_audio_device(const char *devname, int iscapture, - const SDL_AudioSpec *_desired, SDL_AudioSpec *obtained, - int min_id) + const SDL_AudioSpec * _desired, SDL_AudioSpec * obtained, + int min_id) { SDL_AudioDeviceID id = 0; SDL_AudioSpec desired; @@ -631,13 +660,13 @@ } } - device = (SDL_AudioDevice *) SDL_AllocAudioMem(sizeof (SDL_AudioDevice)); + device = (SDL_AudioDevice *) SDL_AllocAudioMem(sizeof(SDL_AudioDevice)); if (device == NULL) { SDL_OutOfMemory(); return 0; } - SDL_memset(device, '\0', sizeof (SDL_AudioDevice)); - SDL_memcpy(&device->spec, &desired, sizeof (SDL_AudioSpec)); + SDL_memset(device, '\0', sizeof(SDL_AudioDevice)); + SDL_memcpy(&device->spec, &desired, sizeof(SDL_AudioSpec)); device->enabled = 1; device->paused = 1; device->iscapture = iscapture; @@ -688,8 +717,8 @@ return 0; } if (device->convert.needed) { - device->convert.len = (int) ( ((double) desired.size) / - device->convert.len_ratio ); + device->convert.len = (int) (((double) desired.size) / + device->convert.len_ratio); device->convert.buf = (Uint8 *) SDL_AllocAudioMem(device->convert.len * @@ -703,7 +732,7 @@ } /* Find an available device ID and store the structure... */ - for (id = min_id-1; id < SDL_arraysize(open_devices); id++) { + for (id = min_id - 1; id < SDL_arraysize(open_devices); id++) { if (open_devices[id] == NULL) { open_devices[id] = device; break; @@ -727,13 +756,13 @@ device->thread = SDL_CreateThread(SDL_RunAudio, device); #endif if (device->thread == NULL) { - SDL_CloseAudioDevice(id+1); + SDL_CloseAudioDevice(id + 1); SDL_SetError("Couldn't create audio thread"); return 0; } } - return id+1; + return id + 1; } @@ -756,9 +785,9 @@ } id = open_audio_device(NULL, 0, desired, obtained, 1); - if (id > 1) { /* this should never happen in theory... */ + if (id > 1) { /* this should never happen in theory... */ SDL_CloseAudioDevice(id); - SDL_SetError("Internal error"); /* MUST be Device ID #1! */ + SDL_SetError("Internal error"); /* MUST be Device ID #1! */ return (-1); } @@ -767,7 +796,7 @@ SDL_AudioDeviceID SDL_OpenAudioDevice(const char *device, int iscapture, - const SDL_AudioSpec *desired, SDL_AudioSpec *obtained) + const SDL_AudioSpec * desired, SDL_AudioSpec * obtained) { return open_audio_device(device, iscapture, desired, obtained, 2); } @@ -848,7 +877,7 @@ SDL_AudioDevice *device = get_audio_device(devid); if (device) { close_audio_device(device); - open_devices[devid-1] = NULL; + open_devices[devid - 1] = NULL; } } @@ -868,8 +897,8 @@ /* Free the driver data */ current_audio.impl.Deinitialize(); - SDL_memset(¤t_audio, '\0', sizeof (current_audio)); - SDL_memset(open_devices, '\0', sizeof (open_devices)); + SDL_memset(¤t_audio, '\0', sizeof(current_audio)); + SDL_memset(open_devices, '\0', sizeof(open_devices)); } #define NUM_FORMATS 10