From 88f2d16e45530b5cd335a59e29c4d190bc11fbf7 Mon Sep 17 00:00:00 2001 From: Sam Lantinga Date: Fri, 28 Oct 2016 17:00:37 -0700 Subject: [PATCH] Fixed compiling on older versions of ALSA --- src/audio/alsa/SDL_alsa_audio.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/audio/alsa/SDL_alsa_audio.c b/src/audio/alsa/SDL_alsa_audio.c index fe5af60ce..05c8862a7 100644 --- a/src/audio/alsa/SDL_alsa_audio.c +++ b/src/audio/alsa/SDL_alsa_audio.c @@ -91,8 +91,10 @@ static int (*ALSA_snd_pcm_reset)(snd_pcm_t *); static int (*ALSA_snd_device_name_hint) (int, const char *, void ***); static char* (*ALSA_snd_device_name_get_hint) (const void *, const char *); static int (*ALSA_snd_device_name_free_hint) (void **); +#ifdef SND_CHMAP_API_VERSION static snd_pcm_chmap_t* (*ALSA_snd_pcm_get_chmap) (snd_pcm_t *); static int (*ALSA_snd_pcm_chmap_print) (const snd_pcm_chmap_t *map, size_t maxlen, char *buf); +#endif #ifdef SDL_AUDIO_DRIVER_ALSA_DYNAMIC #define snd_pcm_hw_params_sizeof ALSA_snd_pcm_hw_params_sizeof @@ -157,8 +159,10 @@ load_alsa_syms(void) SDL_ALSA_SYM(snd_device_name_hint); SDL_ALSA_SYM(snd_device_name_get_hint); SDL_ALSA_SYM(snd_device_name_free_hint); +#ifdef SND_CHMAP_API_VERSION SDL_ALSA_SYM(snd_pcm_get_chmap); SDL_ALSA_SYM(snd_pcm_chmap_print); +#endif return 0; } @@ -559,8 +563,10 @@ ALSA_OpenDevice(_THIS, void *handle, const char *devname, int iscapture) SDL_AudioFormat test_format = 0; unsigned int rate = 0; unsigned int channels = 0; +#ifdef SND_CHMAP_API_VERSION snd_pcm_chmap_t *chmap; char chmap_str[64]; +#endif /* Initialize all variables that we clean on shutdown */ this->hidden = (struct SDL_PrivateAudioData *) @@ -657,6 +663,7 @@ ALSA_OpenDevice(_THIS, void *handle, const char *devname, int iscapture) * Assume original swizzling, until proven otherwise. */ this->hidden->swizzle_func = swizzle_alsa_channels; +#ifdef SND_CHMAP_API_VERSION chmap = ALSA_snd_pcm_get_chmap(pcm_handle); if (chmap) { ALSA_snd_pcm_chmap_print(chmap, sizeof(chmap_str), chmap_str); @@ -666,6 +673,7 @@ ALSA_OpenDevice(_THIS, void *handle, const char *devname, int iscapture) } free(chmap); } +#endif /* SND_CHMAP_API_VERSION */ /* Set the number of channels */ status = ALSA_snd_pcm_hw_params_set_channels(pcm_handle, hwparams,