diff options
Diffstat (limited to 'audio/sdlaudio.c')
| -rw-r--r-- | audio/sdlaudio.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/audio/sdlaudio.c b/audio/sdlaudio.c index c68c62a3e4..797b47bbdd 100644 --- a/audio/sdlaudio.c +++ b/audio/sdlaudio.c @@ -224,12 +224,11 @@ static void sdl_callback_out(void *opaque, Uint8 *buf, int len) /* dolog("callback_out: len=%d avail=%zu\n", len, hw->pending_emul); */ while (hw->pending_emul && len) { - size_t write_len; - ssize_t start = (ssize_t)hw->pos_emul - hw->pending_emul; - if (start < 0) { - start += hw->size_emul; - } - assert(start >= 0 && start < hw->size_emul); + size_t write_len, start; + + start = audio_ring_posb(hw->pos_emul, hw->pending_emul, + hw->size_emul); + assert(start < hw->size_emul); write_len = MIN(MIN(hw->pending_emul, len), hw->size_emul - start); @@ -310,6 +309,7 @@ static void sdl_callback_in(void *opaque, Uint8 *buf, int len) SDL_UnlockAudioDevice(sdl->devid); \ } +SDL_WRAPPER_FUNC(buffer_get_free, size_t, (HWVoiceOut *hw), (hw), Out) SDL_WRAPPER_FUNC(get_buffer_out, void *, (HWVoiceOut *hw, size_t *size), (hw, size), Out) SDL_WRAPPER_FUNC(put_buffer_out, size_t, @@ -347,11 +347,8 @@ static int sdl_init_out(HWVoiceOut *hw, struct audsettings *as, req.freq = as->freq; req.format = aud_to_sdlfmt (as->fmt); req.channels = as->nchannels; - /* - * This is wrong. SDL samples are QEMU frames. The buffer size will be - * the requested buffer size multiplied by the number of channels. - */ - req.samples = audio_buffer_samples( + /* SDL samples are QEMU frames */ + req.samples = audio_buffer_frames( qapi_AudiodevSdlPerDirectionOptions_base(spdo), as, 11610); req.callback = sdl_callback_out; req.userdata = sdl; @@ -472,6 +469,8 @@ static struct audio_pcm_ops sdl_pcm_ops = { .fini_out = sdl_fini_out, /* wrapper for audio_generic_write */ .write = sdl_write, + /* wrapper for audio_generic_buffer_get_free */ + .buffer_get_free = sdl_buffer_get_free, /* wrapper for audio_generic_get_buffer_out */ .get_buffer_out = sdl_get_buffer_out, /* wrapper for audio_generic_put_buffer_out */ |