change all other clock references to use nanosecond resolution accessors

[qemu.git] / audio / noaudio.c

diff --git a/audio/noaudio.c b/audio/noaudio.c
index 64695e6af9373e34affe736804ccb6a72d49efe2..54958f8623f18590758fb304e2db5e3bd2280234 100644 (file)
--- a/audio/noaudio.c
+++ b/audio/noaudio.c
@@ -38,22 +38,17 @@ typedef struct NoVoiceIn {
     int64_t old_ticks;
 } NoVoiceIn;
 
-static int no_run_out (HWVoiceOut *hw)
+static int no_run_out (HWVoiceOut *hw, int live)
 {
     NoVoiceOut *no = (NoVoiceOut *) hw;
-    int live, decr, samples;
+    int decr, samples;
     int64_t now;
     int64_t ticks;
     int64_t bytes;
 
-    live = audio_pcm_hw_get_live_out (&no->hw);
-    if (!live) {
-        return 0;
-    }
-
-    now = qemu_get_clock (vm_clock);
+    now = qemu_get_clock_ns (vm_clock);
     ticks = now - no->old_ticks;
-    bytes = (ticks * hw->info.bytes_per_second) / ticks_per_sec;
+    bytes = muldiv64 (ticks, hw->info.bytes_per_second, get_ticks_per_sec ());
     bytes = audio_MIN (bytes, INT_MAX);
     samples = bytes >> hw->info.shift;
 
@@ -68,7 +63,7 @@ static int no_write (SWVoiceOut *sw, void *buf, int len)
     return audio_pcm_sw_write (sw, buf, len);
 }
 
-static int no_init_out (HWVoiceOut *hw, audsettings_t *as)
+static int no_init_out (HWVoiceOut *hw, struct audsettings *as)
 {
     audio_pcm_init_info (&hw->info, as);
     hw->samples = 1024;
@@ -87,7 +82,7 @@ static int no_ctl_out (HWVoiceOut *hw, int cmd, ...)
     return 0;
 }
 
-static int no_init_in (HWVoiceIn *hw, audsettings_t *as)
+static int no_init_in (HWVoiceIn *hw, struct audsettings *as)
 {
     audio_pcm_init_info (&hw->info, as);
     hw->samples = 1024;
@@ -107,9 +102,10 @@ static int no_run_in (HWVoiceIn *hw)
     int samples = 0;
 
     if (dead) {
-        int64_t now = qemu_get_clock (vm_clock);
+        int64_t now = qemu_get_clock_ns (vm_clock);
         int64_t ticks = now - no->old_ticks;
-        int64_t bytes = (ticks * hw->info.bytes_per_second) / ticks_per_sec;
+        int64_t bytes =
+            muldiv64 (ticks, hw->info.bytes_per_second, get_ticks_per_sec ());
 
         no->old_ticks = now;
         bytes = audio_MIN (bytes, INT_MAX);
@@ -121,11 +117,14 @@ static int no_run_in (HWVoiceIn *hw)
 
 static int no_read (SWVoiceIn *sw, void *buf, int size)
 {
+    /* use custom code here instead of audio_pcm_sw_read() to avoid
+     * useless resampling/mixing */
     int samples = size >> sw->info.shift;
     int total = sw->hw->total_samples_captured - sw->total_hw_samples_acquired;
     int to_clear = audio_MIN (samples, total);
+    sw->total_hw_samples_acquired += total;
     audio_pcm_info_clear_buf (&sw->info, buf, to_clear);
-    return to_clear;
+    return to_clear << sw->info.shift;
 }
 
 static int no_ctl_in (HWVoiceIn *hw, int cmd, ...)
@@ -146,29 +145,29 @@ static void no_audio_fini (void *opaque)
 }
 
 static struct audio_pcm_ops no_pcm_ops = {
-    no_init_out,
-    no_fini_out,
-    no_run_out,
-    no_write,
-    no_ctl_out,
-
-    no_init_in,
-    no_fini_in,
-    no_run_in,
-    no_read,
-    no_ctl_in
+    .init_out = no_init_out,
+    .fini_out = no_fini_out,
+    .run_out  = no_run_out,
+    .write    = no_write,
+    .ctl_out  = no_ctl_out,
+
+    .init_in  = no_init_in,
+    .fini_in  = no_fini_in,
+    .run_in   = no_run_in,
+    .read     = no_read,
+    .ctl_in   = no_ctl_in
 };
 
 struct audio_driver no_audio_driver = {
-    INIT_FIELD (name           = ) "none",
-    INIT_FIELD (descr          = ) "Timer based audio emulation",
-    INIT_FIELD (options        = ) NULL,
-    INIT_FIELD (init           = ) no_audio_init,
-    INIT_FIELD (fini           = ) no_audio_fini,
-    INIT_FIELD (pcm_ops        = ) &no_pcm_ops,
-    INIT_FIELD (can_be_default = ) 1,
-    INIT_FIELD (max_voices_out = ) INT_MAX,
-    INIT_FIELD (max_voices_in  = ) INT_MAX,
-    INIT_FIELD (voice_size_out = ) sizeof (NoVoiceOut),
-    INIT_FIELD (voice_size_in  = ) sizeof (NoVoiceIn)
+    .name           = "none",
+    .descr          = "Timer based audio emulation",
+    .options        = NULL,
+    .init           = no_audio_init,
+    .fini           = no_audio_fini,
+    .pcm_ops        = &no_pcm_ops,
+    .can_be_default = 1,
+    .max_voices_out = INT_MAX,
+    .max_voices_in  = INT_MAX,
+    .voice_size_out = sizeof (NoVoiceOut),
+    .voice_size_in  = sizeof (NoVoiceIn)
 };