diff options
Diffstat (limited to 'Alc')
| -rw-r--r-- | Alc/backends/alsa.c | 237 |
1 files changed, 89 insertions, 148 deletions
diff --git a/Alc/backends/alsa.c b/Alc/backends/alsa.c index 7e9e5e79..874b31c3 100644 --- a/Alc/backends/alsa.c +++ b/Alc/backends/alsa.c @@ -38,80 +38,83 @@ static const ALCchar alsaDevice[] = "ALSA Default"; #ifdef HAVE_DYNLOAD +#define ALSA_FUNCS(MAGIC) \ + MAGIC(snd_strerror); \ + MAGIC(snd_pcm_open); \ + MAGIC(snd_pcm_close); \ + MAGIC(snd_pcm_nonblock); \ + MAGIC(snd_pcm_frames_to_bytes); \ + MAGIC(snd_pcm_bytes_to_frames); \ + MAGIC(snd_pcm_hw_params_malloc); \ + MAGIC(snd_pcm_hw_params_free); \ + MAGIC(snd_pcm_hw_params_any); \ + MAGIC(snd_pcm_hw_params_current); \ + MAGIC(snd_pcm_hw_params_set_access); \ + MAGIC(snd_pcm_hw_params_set_format); \ + MAGIC(snd_pcm_hw_params_set_channels); \ + MAGIC(snd_pcm_hw_params_set_periods_near); \ + MAGIC(snd_pcm_hw_params_set_rate_near); \ + MAGIC(snd_pcm_hw_params_set_rate); \ + MAGIC(snd_pcm_hw_params_set_rate_resample); \ + MAGIC(snd_pcm_hw_params_set_buffer_time_near); \ + MAGIC(snd_pcm_hw_params_set_period_time_near); \ + MAGIC(snd_pcm_hw_params_set_buffer_size_near); \ + MAGIC(snd_pcm_hw_params_set_period_size_near); \ + MAGIC(snd_pcm_hw_params_set_buffer_size_min); \ + MAGIC(snd_pcm_hw_params_get_buffer_time_min); \ + MAGIC(snd_pcm_hw_params_get_buffer_time_max); \ + MAGIC(snd_pcm_hw_params_get_period_time_min); \ + MAGIC(snd_pcm_hw_params_get_period_time_max); \ + MAGIC(snd_pcm_hw_params_get_buffer_size); \ + MAGIC(snd_pcm_hw_params_get_period_size); \ + MAGIC(snd_pcm_hw_params_get_access); \ + MAGIC(snd_pcm_hw_params_get_periods); \ + MAGIC(snd_pcm_hw_params_test_format); \ + MAGIC(snd_pcm_hw_params_test_channels); \ + MAGIC(snd_pcm_hw_params); \ + MAGIC(snd_pcm_sw_params_malloc); \ + MAGIC(snd_pcm_sw_params_current); \ + MAGIC(snd_pcm_sw_params_set_avail_min); \ + MAGIC(snd_pcm_sw_params_set_stop_threshold); \ + MAGIC(snd_pcm_sw_params); \ + MAGIC(snd_pcm_sw_params_free); \ + MAGIC(snd_pcm_prepare); \ + MAGIC(snd_pcm_start); \ + MAGIC(snd_pcm_resume); \ + MAGIC(snd_pcm_reset); \ + MAGIC(snd_pcm_wait); \ + MAGIC(snd_pcm_delay); \ + MAGIC(snd_pcm_state); \ + MAGIC(snd_pcm_avail_update); \ + MAGIC(snd_pcm_areas_silence); \ + MAGIC(snd_pcm_mmap_begin); \ + MAGIC(snd_pcm_mmap_commit); \ + MAGIC(snd_pcm_readi); \ + MAGIC(snd_pcm_writei); \ + MAGIC(snd_pcm_drain); \ + MAGIC(snd_pcm_drop); \ + MAGIC(snd_pcm_recover); \ + MAGIC(snd_pcm_info_malloc); \ + MAGIC(snd_pcm_info_free); \ + MAGIC(snd_pcm_info_set_device); \ + MAGIC(snd_pcm_info_set_subdevice); \ + MAGIC(snd_pcm_info_set_stream); \ + MAGIC(snd_pcm_info_get_name); \ + MAGIC(snd_ctl_pcm_next_device); \ + MAGIC(snd_ctl_pcm_info); \ + MAGIC(snd_ctl_open); \ + MAGIC(snd_ctl_close); \ + MAGIC(snd_ctl_card_info_malloc); \ + MAGIC(snd_ctl_card_info_free); \ + MAGIC(snd_ctl_card_info); \ + MAGIC(snd_ctl_card_info_get_name); \ + MAGIC(snd_ctl_card_info_get_id); \ + MAGIC(snd_card_next); \ + MAGIC(snd_config_update_free_global) + static void *alsa_handle; #define MAKE_FUNC(f) static __typeof(f) * p##f -MAKE_FUNC(snd_strerror); -MAKE_FUNC(snd_pcm_open); -MAKE_FUNC(snd_pcm_close); -MAKE_FUNC(snd_pcm_nonblock); -MAKE_FUNC(snd_pcm_frames_to_bytes); -MAKE_FUNC(snd_pcm_bytes_to_frames); -MAKE_FUNC(snd_pcm_hw_params_malloc); -MAKE_FUNC(snd_pcm_hw_params_free); -MAKE_FUNC(snd_pcm_hw_params_any); -MAKE_FUNC(snd_pcm_hw_params_current); -MAKE_FUNC(snd_pcm_hw_params_set_access); -MAKE_FUNC(snd_pcm_hw_params_set_format); -MAKE_FUNC(snd_pcm_hw_params_set_channels); -MAKE_FUNC(snd_pcm_hw_params_set_periods_near); -MAKE_FUNC(snd_pcm_hw_params_set_rate_near); -MAKE_FUNC(snd_pcm_hw_params_set_rate); -MAKE_FUNC(snd_pcm_hw_params_set_rate_resample); -MAKE_FUNC(snd_pcm_hw_params_set_buffer_time_near); -MAKE_FUNC(snd_pcm_hw_params_set_period_time_near); -MAKE_FUNC(snd_pcm_hw_params_set_buffer_size_near); -MAKE_FUNC(snd_pcm_hw_params_set_period_size_near); -MAKE_FUNC(snd_pcm_hw_params_set_buffer_size_min); -MAKE_FUNC(snd_pcm_hw_params_get_buffer_time_min); -MAKE_FUNC(snd_pcm_hw_params_get_buffer_time_max); -MAKE_FUNC(snd_pcm_hw_params_get_period_time_min); -MAKE_FUNC(snd_pcm_hw_params_get_period_time_max); -MAKE_FUNC(snd_pcm_hw_params_get_buffer_size); -MAKE_FUNC(snd_pcm_hw_params_get_period_size); -MAKE_FUNC(snd_pcm_hw_params_get_access); -MAKE_FUNC(snd_pcm_hw_params_get_periods); -MAKE_FUNC(snd_pcm_hw_params_test_format); -MAKE_FUNC(snd_pcm_hw_params_test_channels); -MAKE_FUNC(snd_pcm_hw_params); -MAKE_FUNC(snd_pcm_sw_params_malloc); -MAKE_FUNC(snd_pcm_sw_params_current); -MAKE_FUNC(snd_pcm_sw_params_set_avail_min); -MAKE_FUNC(snd_pcm_sw_params_set_stop_threshold); -MAKE_FUNC(snd_pcm_sw_params); -MAKE_FUNC(snd_pcm_sw_params_free); -MAKE_FUNC(snd_pcm_prepare); -MAKE_FUNC(snd_pcm_start); -MAKE_FUNC(snd_pcm_resume); -MAKE_FUNC(snd_pcm_reset); -MAKE_FUNC(snd_pcm_wait); -MAKE_FUNC(snd_pcm_delay); -MAKE_FUNC(snd_pcm_state); -MAKE_FUNC(snd_pcm_avail_update); -MAKE_FUNC(snd_pcm_areas_silence); -MAKE_FUNC(snd_pcm_mmap_begin); -MAKE_FUNC(snd_pcm_mmap_commit); -MAKE_FUNC(snd_pcm_readi); -MAKE_FUNC(snd_pcm_writei); -MAKE_FUNC(snd_pcm_drain); -MAKE_FUNC(snd_pcm_drop); -MAKE_FUNC(snd_pcm_recover); -MAKE_FUNC(snd_pcm_info_malloc); -MAKE_FUNC(snd_pcm_info_free); -MAKE_FUNC(snd_pcm_info_set_device); -MAKE_FUNC(snd_pcm_info_set_subdevice); -MAKE_FUNC(snd_pcm_info_set_stream); -MAKE_FUNC(snd_pcm_info_get_name); -MAKE_FUNC(snd_ctl_pcm_next_device); -MAKE_FUNC(snd_ctl_pcm_info); -MAKE_FUNC(snd_ctl_open); -MAKE_FUNC(snd_ctl_close); -MAKE_FUNC(snd_ctl_card_info_malloc); -MAKE_FUNC(snd_ctl_card_info_free); -MAKE_FUNC(snd_ctl_card_info); -MAKE_FUNC(snd_ctl_card_info_get_name); -MAKE_FUNC(snd_ctl_card_info_get_id); -MAKE_FUNC(snd_card_next); -MAKE_FUNC(snd_config_update_free_global); +ALSA_FUNCS(MAKE_FUNC); #undef MAKE_FUNC #define snd_strerror psnd_strerror @@ -191,6 +194,8 @@ MAKE_FUNC(snd_config_update_free_global); static ALCboolean alsa_load(void) { + ALCboolean error = ALC_FALSE; + #ifdef HAVE_DYNLOAD if(!alsa_handle) { @@ -198,90 +203,26 @@ static ALCboolean alsa_load(void) if(!alsa_handle) return ALC_FALSE; + error = ALC_FALSE; #define LOAD_FUNC(f) do { \ p##f = GetSymbol(alsa_handle, #f); \ if(p##f == NULL) { \ - CloseLib(alsa_handle); \ - alsa_handle = NULL; \ - return ALC_FALSE; \ + error = ALC_TRUE; \ } \ } while(0) - LOAD_FUNC(snd_strerror); - LOAD_FUNC(snd_pcm_open); - LOAD_FUNC(snd_pcm_close); - LOAD_FUNC(snd_pcm_nonblock); - LOAD_FUNC(snd_pcm_frames_to_bytes); - LOAD_FUNC(snd_pcm_bytes_to_frames); - LOAD_FUNC(snd_pcm_hw_params_malloc); - LOAD_FUNC(snd_pcm_hw_params_free); - LOAD_FUNC(snd_pcm_hw_params_any); - LOAD_FUNC(snd_pcm_hw_params_current); - LOAD_FUNC(snd_pcm_hw_params_set_access); - LOAD_FUNC(snd_pcm_hw_params_set_format); - LOAD_FUNC(snd_pcm_hw_params_set_channels); - LOAD_FUNC(snd_pcm_hw_params_set_periods_near); - LOAD_FUNC(snd_pcm_hw_params_set_rate_near); - LOAD_FUNC(snd_pcm_hw_params_set_rate); - LOAD_FUNC(snd_pcm_hw_params_set_rate_resample); - LOAD_FUNC(snd_pcm_hw_params_set_buffer_time_near); - LOAD_FUNC(snd_pcm_hw_params_set_period_time_near); - LOAD_FUNC(snd_pcm_hw_params_set_buffer_size_near); - LOAD_FUNC(snd_pcm_hw_params_set_buffer_size_min); - LOAD_FUNC(snd_pcm_hw_params_set_period_size_near); - LOAD_FUNC(snd_pcm_hw_params_get_buffer_time_min); - LOAD_FUNC(snd_pcm_hw_params_get_buffer_time_max); - LOAD_FUNC(snd_pcm_hw_params_get_period_time_min); - LOAD_FUNC(snd_pcm_hw_params_get_period_time_max); - LOAD_FUNC(snd_pcm_hw_params_get_buffer_size); - LOAD_FUNC(snd_pcm_hw_params_get_period_size); - LOAD_FUNC(snd_pcm_hw_params_get_access); - LOAD_FUNC(snd_pcm_hw_params_get_periods); - LOAD_FUNC(snd_pcm_hw_params_test_format); - LOAD_FUNC(snd_pcm_hw_params_test_channels); - LOAD_FUNC(snd_pcm_hw_params); - LOAD_FUNC(snd_pcm_sw_params_malloc); - LOAD_FUNC(snd_pcm_sw_params_current); - LOAD_FUNC(snd_pcm_sw_params_set_avail_min); - LOAD_FUNC(snd_pcm_sw_params_set_stop_threshold); - LOAD_FUNC(snd_pcm_sw_params); - LOAD_FUNC(snd_pcm_sw_params_free); - LOAD_FUNC(snd_pcm_prepare); - LOAD_FUNC(snd_pcm_start); - LOAD_FUNC(snd_pcm_resume); - LOAD_FUNC(snd_pcm_reset); - LOAD_FUNC(snd_pcm_wait); - LOAD_FUNC(snd_pcm_delay); - LOAD_FUNC(snd_pcm_state); - LOAD_FUNC(snd_pcm_avail_update); - LOAD_FUNC(snd_pcm_areas_silence); - LOAD_FUNC(snd_pcm_mmap_begin); - LOAD_FUNC(snd_pcm_mmap_commit); - LOAD_FUNC(snd_pcm_readi); - LOAD_FUNC(snd_pcm_writei); - LOAD_FUNC(snd_pcm_drain); - LOAD_FUNC(snd_pcm_drop); - LOAD_FUNC(snd_pcm_recover); - LOAD_FUNC(snd_pcm_info_malloc); - LOAD_FUNC(snd_pcm_info_free); - LOAD_FUNC(snd_pcm_info_set_device); - LOAD_FUNC(snd_pcm_info_set_subdevice); - LOAD_FUNC(snd_pcm_info_set_stream); - LOAD_FUNC(snd_pcm_info_get_name); - LOAD_FUNC(snd_ctl_pcm_next_device); - LOAD_FUNC(snd_ctl_pcm_info); - LOAD_FUNC(snd_ctl_open); - LOAD_FUNC(snd_ctl_close); - LOAD_FUNC(snd_ctl_card_info_malloc); - LOAD_FUNC(snd_ctl_card_info_free); - LOAD_FUNC(snd_ctl_card_info); - LOAD_FUNC(snd_ctl_card_info_get_name); - LOAD_FUNC(snd_ctl_card_info_get_id); - LOAD_FUNC(snd_card_next); - LOAD_FUNC(snd_config_update_free_global); + ALSA_FUNCS(LOAD_FUNC); #undef LOAD_FUNC + + if(error) + { + CloseLib(alsa_handle); + alsa_handle = NULL; + return ALC_FALSE; + } } #endif - return ALC_TRUE; + + return !error; } |