audio: split pcm_ops function get_buffer_in

Split off pcm_ops function run_buffer_in from get_buffer_in and
call run_buffer_in before get_buffer_in.

The next patch only needs the generic buffer management part
from audio_generic_get_buffer_in().

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Message-id: 9315afe5-5958-c0b4-ea1e-14769511a9d5@t-online.de
Message-Id: <20210110100239.27588-8-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 14 insertions, 4 deletions

diff --git a/audio/audio.c b/audio/audio.c
index d048d26..480b3cc 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -1241,6 +1241,10 @@ static size_t audio_pcm_hw_run_in(HWVoiceIn *hw, size_t samples)
     size_t conv = 0;
     STSampleBuffer *conv_buf = hw->conv_buf;
 
+    if (hw->pcm_ops->run_buffer_in) {
+        hw->pcm_ops->run_buffer_in(hw);
+    }
+
     while (samples) {
         size_t proc;
         size_t size = samples * hw->info.bytes_per_frame;
@@ -1381,10 +1385,8 @@ void audio_run(AudioState *s, const char *msg)
 #endif
 }
 
-void *audio_generic_get_buffer_in(HWVoiceIn *hw, size_t *size)
+void audio_generic_run_buffer_in(HWVoiceIn *hw)
 {
-    ssize_t start;
-
     if (unlikely(!hw->buf_emul)) {
         size_t calc_size = hw->conv_buf->size * hw->info.bytes_per_frame;
         hw->buf_emul = g_malloc(calc_size);
@@ -1403,8 +1405,12 @@ void *audio_generic_get_buffer_in(HWVoiceIn *hw, size_t *size)
             break;
         }
     }
+}
+
+void *audio_generic_get_buffer_in(HWVoiceIn *hw, size_t *size)
+{
+    ssize_t start = (ssize_t)hw->pos_emul - hw->pending_emul;
 
-    start = ((ssize_t) hw->pos_emul) - hw->pending_emul;
     if (start < 0) {
         start += hw->size_emul;
     }
@@ -1505,6 +1511,10 @@ size_t audio_generic_read(HWVoiceIn *hw, void *buf, size_t size)
 {
     size_t total = 0;
 
+    if (hw->pcm_ops->run_buffer_in) {
+        hw->pcm_ops->run_buffer_in(hw);
+    }
+
     while (total < size) {
         size_t src_size = size - total;
         void *src = hw->pcm_ops->get_buffer_in(hw, &src_size);