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[Qemu-devel] [PATCH v2 15/49] dsoundaudio: port to -audiodev config


From: Kővágó, Zoltán
Subject: [Qemu-devel] [PATCH v2 15/49] dsoundaudio: port to -audiodev config
Date: Fri, 21 Aug 2015 17:37:11 +0200

Signed-off-by: Kővágó, Zoltán <address@hidden>
---
 audio/audio_legacy.c    | 12 ++++++++++
 audio/dsound_template.h |  6 ++---
 audio/dsoundaudio.c     | 59 ++++++++++++++-----------------------------------
 3 files changed, 32 insertions(+), 45 deletions(-)

diff --git a/audio/audio_legacy.c b/audio/audio_legacy.c
index 4be972e..bcf87ff 100644
--- a/audio/audio_legacy.c
+++ b/audio/audio_legacy.c
@@ -66,6 +66,16 @@ SimpleEnvMap coreaudio_map[] = {
     { /* End of list */ }
 };
 
+SimpleEnvMap dsound_map[] = {
+    { "QEMU_DSOUND_LATENCY_MILLIS", "latency", ENV_TRANSFORM_MILLIS_TO_USECS },
+    { "QEMU_DSOUND_BUFSIZE_OUT", "out.buffer-len",
+      ENV_TRANSFORM_BYTES_TO_USECS_OUT },
+    { "QEMU_DSOUND_BUFSIZE_IN", "in.buffer-len",
+      ENV_TRANSFORM_BYTES_TO_USECS_IN },
+
+    { /* End of list */ }
+};
+
 static unsigned long long toull(const char *str)
 {
     unsigned long long ret;
@@ -238,6 +248,8 @@ static void legacy_opt(const char *drv)
         handle_alsa(opts);
     } else if (strcmp(drv, "coreaudio") == 0) {
         handle_env_opts(opts, coreaudio_map);
+    } else if (strcmp(drv, "dsound") == 0) {
+        handle_env_opts(opts, dsound_map);
     }
 }
 
diff --git a/audio/dsound_template.h b/audio/dsound_template.h
index b439f33..96181ef 100644
--- a/audio/dsound_template.h
+++ b/audio/dsound_template.h
@@ -167,17 +167,18 @@ static int dsound_init_out(HWVoiceOut *hw, struct 
audsettings *as,
     dsound *s = drv_opaque;
     WAVEFORMATEX wfx;
     struct audsettings obt_as;
-    DSoundConf *conf = &s->conf;
 #ifdef DSBTYPE_IN
     const char *typ = "ADC";
     DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
     DSCBUFFERDESC bd;
     DSCBCAPS bc;
+    AudiodevPerDirectionOptions *pdo = s->dev->in;
 #else
     const char *typ = "DAC";
     DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
     DSBUFFERDESC bd;
     DSBCAPS bc;
+    AudiodevPerDirectionOptions *pdo = s->dev->out;
 #endif
 
     if (!s->FIELD2) {
@@ -193,8 +194,8 @@ static int dsound_init_out(HWVoiceOut *hw, struct 
audsettings *as,
     memset (&bd, 0, sizeof (bd));
     bd.dwSize = sizeof (bd);
     bd.lpwfxFormat = &wfx;
+    bd.dwBufferBytes = audio_buffer_bytes(pdo, as, 92880);
 #ifdef DSBTYPE_IN
-    bd.dwBufferBytes = conf->bufsize_in;
     hr = IDirectSoundCapture_CreateCaptureBuffer (
         s->dsound_capture,
         &bd,
@@ -203,7 +204,6 @@ static int dsound_init_out(HWVoiceOut *hw, struct 
audsettings *as,
         );
 #else
     bd.dwFlags = DSBCAPS_STICKYFOCUS | DSBCAPS_GETCURRENTPOSITION2;
-    bd.dwBufferBytes = conf->bufsize_out;
     hr = IDirectSound_CreateSoundBuffer (
         s->dsound,
         &bd,
diff --git a/audio/dsoundaudio.c b/audio/dsoundaudio.c
index d447e12..0a4a72d 100644
--- a/audio/dsoundaudio.c
+++ b/audio/dsoundaudio.c
@@ -31,6 +31,7 @@
 
 #define AUDIO_CAP "dsound"
 #include "audio_int.h"
+#include "qemu/host-utils.h"
 
 #include <windows.h>
 #include <mmsystem.h>
@@ -42,16 +43,10 @@
 /* #define DEBUG_DSOUND */
 
 typedef struct {
-    int bufsize_in;
-    int bufsize_out;
-    int latency_millis;
-} DSoundConf;
-
-typedef struct {
     LPDIRECTSOUND dsound;
     LPDIRECTSOUNDCAPTURE dsound_capture;
     struct audsettings settings;
-    DSoundConf conf;
+    Audiodev *dev;
 } dsound;
 
 typedef struct {
@@ -247,9 +242,9 @@ static void GCC_FMT_ATTR (3, 4) dsound_logerr2 (
     dsound_log_hresult (hr);
 }
 
-static DWORD millis_to_bytes (struct audio_pcm_info *info, DWORD millis)
+static uint64_t usecs_to_bytes(struct audio_pcm_info *info, uint32_t usecs)
 {
-    return (millis * info->bytes_per_second) / 1000;
+    return muldiv64(usecs, info->bytes_per_second, 1000000);
 }
 
 #ifdef DEBUG_DSOUND
@@ -477,7 +472,7 @@ static int dsound_run_out (HWVoiceOut *hw, int live)
     LPVOID p1, p2;
     int bufsize;
     dsound *s = ds->s;
-    DSoundConf *conf = &s->conf;
+    AudiodevDsoundOptions *dso = s->dev->dsound;
 
     if (!dsb) {
         dolog ("Attempt to run empty with playback buffer\n");
@@ -500,14 +495,14 @@ static int dsound_run_out (HWVoiceOut *hw, int live)
     len = live << hwshift;
 
     if (ds->first_time) {
-        if (conf->latency_millis) {
+        if (dso->latency) {
             DWORD cur_blat;
 
             cur_blat = audio_ring_dist (wpos, ppos, bufsize);
             ds->first_time = 0;
             old_pos = wpos;
             old_pos +=
-                millis_to_bytes (&hw->info, conf->latency_millis) - cur_blat;
+                usecs_to_bytes(&hw->info, dso->latency) - cur_blat;
             old_pos %= bufsize;
             old_pos &= ~hw->info.align;
         }
@@ -746,12 +741,6 @@ static int dsound_run_in (HWVoiceIn *hw)
     return decr;
 }
 
-static DSoundConf glob_conf = {
-    .bufsize_in         = 16384,
-    .bufsize_out        = 16384,
-    .latency_millis     = 10
-};
-
 static void dsound_audio_fini (void *opaque)
 {
     HRESULT hr;
@@ -787,8 +776,17 @@ static void *dsound_audio_init(Audiodev *dev)
     int err;
     HRESULT hr;
     dsound *s = g_malloc0(sizeof(dsound));
+    AudiodevDsoundOptions *dso;
+
+    assert(dev->kind == AUDIODEV_DRIVER_DSOUND);
+    s->dev = dev;
+    dso = dev->dsound;
+
+    if (!dso->has_latency) {
+        dso->has_latency = true;
+        dso->latency = 10000; /* 10 ms */
+    }
 
-    s->conf = glob_conf;
     hr = CoInitialize (NULL);
     if (FAILED (hr)) {
         dsound_logerr (hr, "Could not initialize COM\n");
@@ -853,28 +851,6 @@ static void *dsound_audio_init(Audiodev *dev)
     return s;
 }
 
-static struct audio_option dsound_options[] = {
-    {
-        .name  = "LATENCY_MILLIS",
-        .tag   = AUD_OPT_INT,
-        .valp  = &glob_conf.latency_millis,
-        .descr = "(undocumented)"
-    },
-    {
-        .name  = "BUFSIZE_OUT",
-        .tag   = AUD_OPT_INT,
-        .valp  = &glob_conf.bufsize_out,
-        .descr = "(undocumented)"
-    },
-    {
-        .name  = "BUFSIZE_IN",
-        .tag   = AUD_OPT_INT,
-        .valp  = &glob_conf.bufsize_in,
-        .descr = "(undocumented)"
-    },
-    { /* End of list */ }
-};
-
 static struct audio_pcm_ops dsound_pcm_ops = {
     .init_out = dsound_init_out,
     .fini_out = dsound_fini_out,
@@ -892,7 +868,6 @@ static struct audio_pcm_ops dsound_pcm_ops = {
 struct audio_driver dsound_audio_driver = {
     .name           = "dsound",
     .descr          = "DirectSound http://wikipedia.org/wiki/DirectSound";,
-    .options        = dsound_options,
     .init           = dsound_audio_init,
     .fini           = dsound_audio_fini,
     .pcm_ops        = &dsound_pcm_ops,
-- 
2.5.0




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