tcg/arm: use the blx instruction when possible

[qemu.git] / audio / sdlaudio.c

diff --git a/audio/sdlaudio.c b/audio/sdlaudio.c
index 713c7849d88eb1ea95aaaf521c2cd8aa6843e3ad..8e7e5cb70b014b9464dfdd62263ee807c523217b 100644 (file)
--- a/audio/sdlaudio.c
+++ b/audio/sdlaudio.c
@@ -23,7 +23,17 @@
  */
 #include <SDL.h>
 #include <SDL_thread.h>
-#include "vl.h"
+#include "qemu-common.h"
+#include "audio.h"
+
+#ifndef _WIN32
+#ifdef __sun__
+#define _POSIX_PTHREAD_SEMANTICS 1
+#elif defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
+#include <pthread.h>
+#endif
+#include <signal.h>
+#endif
 
 #define AUDIO_CAP "sdl"
 #include "audio_int.h"
@@ -38,10 +48,10 @@ typedef struct SDLVoiceOut {
 static struct {
     int nb_samples;
 } conf = {
-    1024
+    .nb_samples = 1024
 };
 
-struct SDLAudioState {
+static struct SDLAudioState {
     int exit;
     SDL_mutex *mutex;
     SDL_sem *sem;
@@ -177,11 +187,22 @@ static int sdl_to_audfmt (int sdlfmt, audfmt_e *fmt, int *endianess)
 static int sdl_open (SDL_AudioSpec *req, SDL_AudioSpec *obt)
 {
     int status;
+#ifndef _WIN32
+    sigset_t new, old;
+
+    /* Make sure potential threads created by SDL don't hog signals.  */
+    sigfillset (&new);
+    pthread_sigmask (SIG_BLOCK, &new, &old);
+#endif
 
     status = SDL_OpenAudio (req, obt);
     if (status) {
         sdl_logerr ("SDL_OpenAudio failed\n");
     }
+
+#ifndef _WIN32
+    pthread_sigmask (SIG_SETMASK, &old, NULL);
+#endif
     return status;
 }
 
@@ -236,11 +257,10 @@ static void sdl_callback (void *opaque, Uint8 *buf, int len)
         decr = to_mix;
         while (to_mix) {
             int chunk = audio_MIN (to_mix, hw->samples - hw->rpos);
-            st_sample_t *src = hw->mix_buf + hw->rpos;
+            struct st_sample *src = hw->mix_buf + hw->rpos;
 
             /* dolog ("in callback to_mix %d, chunk %d\n", to_mix, chunk); */
             hw->clip (buf, src, chunk);
-            mixeng_clear (src, chunk);
             sdl->rpos = (sdl->rpos + chunk) % hw->samples;
             to_mix -= chunk;
             buf += chunk << hw->info.shift;
@@ -262,18 +282,16 @@ static int sdl_write_out (SWVoiceOut *sw, void *buf, int len)
     return audio_pcm_sw_write (sw, buf, len);
 }
 
-static int sdl_run_out (HWVoiceOut *hw)
+static int sdl_run_out (HWVoiceOut *hw, int live)
 {
-    int decr, live;
+    int decr;
     SDLVoiceOut *sdl = (SDLVoiceOut *) hw;
     SDLAudioState *s = &glob_sdl;
 
-    if (sdl_lock (s, "sdl_callback")) {
+    if (sdl_lock (s, "sdl_run_out")) {
         return 0;
     }
 
-    live = audio_pcm_hw_get_live_out (hw);
-
     if (sdl->decr > live) {
         ldebug ("sdl->decr %d live %d sdl->live %d\n",
                 sdl->decr,
@@ -288,10 +306,10 @@ static int sdl_run_out (HWVoiceOut *hw)
     hw->rpos = sdl->rpos;
 
     if (sdl->live > 0) {
-        sdl_unlock_and_post (s, "sdl_callback");
+        sdl_unlock_and_post (s, "sdl_run_out");
     }
     else {
-        sdl_unlock (s, "sdl_callback");
+        sdl_unlock (s, "sdl_run_out");
     }
     return decr;
 }
@@ -303,7 +321,7 @@ static void sdl_fini_out (HWVoiceOut *hw)
     sdl_close (&glob_sdl);
 }
 
-static int sdl_init_out (HWVoiceOut *hw, audsettings_t *as)
+static int sdl_init_out (HWVoiceOut *hw, struct audsettings *as)
 {
     SDLVoiceOut *sdl = (SDLVoiceOut *) hw;
     SDLAudioState *s = &glob_sdl;
@@ -312,7 +330,7 @@ static int sdl_init_out (HWVoiceOut *hw, audsettings_t *as)
     int endianess;
     int err;
     audfmt_e effective_fmt;
-    audsettings_t obt_as;
+    struct audsettings obt_as;
 
     shift <<= as->nchannels == 2;
 
@@ -336,12 +354,9 @@ static int sdl_init_out (HWVoiceOut *hw, audsettings_t *as)
     obt_as.freq = obt.freq;
     obt_as.nchannels = obt.channels;
     obt_as.fmt = effective_fmt;
+    obt_as.endianness = endianess;
 
-    audio_pcm_init_info (
-        &hw->info,
-        &obt_as,
-        audio_need_to_swap_endian (endianess)
-        );
+    audio_pcm_init_info (&hw->info, &obt_as);
     hw->samples = obt.samples;
 
     s->initialized = 1;
@@ -403,35 +418,33 @@ static void sdl_audio_fini (void *opaque)
 }
 
 static struct audio_option sdl_options[] = {
-    {"SAMPLES", AUD_OPT_INT, &conf.nb_samples,
-     "Size of SDL buffer in samples", NULL, 0},
-    {NULL, 0, NULL, NULL, NULL, 0}
+    {
+        .name  = "SAMPLES",
+        .tag   = AUD_OPT_INT,
+        .valp  = &conf.nb_samples,
+        .descr = "Size of SDL buffer in samples"
+    },
+    { /* End of list */ }
 };
 
 static struct audio_pcm_ops sdl_pcm_ops = {
-    sdl_init_out,
-    sdl_fini_out,
-    sdl_run_out,
-    sdl_write_out,
-    sdl_ctl_out,
-
-    NULL,
-    NULL,
-    NULL,
-    NULL,
-    NULL
+    .init_out = sdl_init_out,
+    .fini_out = sdl_fini_out,
+    .run_out  = sdl_run_out,
+    .write    = sdl_write_out,
+    .ctl_out  = sdl_ctl_out,
 };
 
 struct audio_driver sdl_audio_driver = {
-    INIT_FIELD (name           = ) "sdl",
-    INIT_FIELD (descr          = ) "SDL http://www.libsdl.org",
-    INIT_FIELD (options        = ) sdl_options,
-    INIT_FIELD (init           = ) sdl_audio_init,
-    INIT_FIELD (fini           = ) sdl_audio_fini,
-    INIT_FIELD (pcm_ops        = ) &sdl_pcm_ops,
-    INIT_FIELD (can_be_default = ) 1,
-    INIT_FIELD (max_voices_out = ) 1,
-    INIT_FIELD (max_voices_in  = ) 0,
-    INIT_FIELD (voice_size_out = ) sizeof (SDLVoiceOut),
-    INIT_FIELD (voice_size_in  = ) 0
+    .name           = "sdl",
+    .descr          = "SDL http://www.libsdl.org",
+    .options        = sdl_options,
+    .init           = sdl_audio_init,
+    .fini           = sdl_audio_fini,
+    .pcm_ops        = &sdl_pcm_ops,
+    .can_be_default = 1,
+    .max_voices_out = 1,
+    .max_voices_in  = 0,
+    .voice_size_out = sizeof (SDLVoiceOut),
+    .voice_size_in  = 0
 };