deal with some gcc7+ warnings

[libpicofe.git] / linux / sndout_oss.c

diff --git a/linux/sndout_oss.c b/linux/sndout_oss.c
index 2313d3f..6d4eded 100644 (file)
--- a/linux/sndout_oss.c
+++ b/linux/sndout_oss.c
@@ -1,3 +1,14 @@
+/*
+ * (C) Gražvydas "notaz" Ignotas, 2009-2010
+ *
+ * This work is licensed under the terms of any of these licenses
+ * (at your option):
+ *  - GNU GPL, version 2 or later.
+ *  - GNU LGPL, version 2.1 or later.
+ *  - MAME license.
+ * See the COPYING file in the top-level directory.
+ */
+
 /* sound output via OSS */
 #include <stdio.h>
 #include <sys/types.h>
@@ -9,6 +20,9 @@
 
 #include "sndout_oss.h"
 
+int sndout_oss_frag_frames = 1;
+int sndout_oss_can_restart = 1;
+
 static int sounddev = -1, mixerdev = -1;
 static int can_write_safe;
 
@@ -28,15 +42,22 @@ int sndout_oss_init(void)
 
 void sndout_oss_stop(void)
 {
+       /* restarting audio on GP2X causes trouble,
+        * not restarting on Caanoo causes trouble */
+       if (!sndout_oss_can_restart)
+               return;
+
        if (sounddev < 0)
                return;
 
-       ioctl(sounddev, SOUND_PCM_SYNC, 0);
+       // sync causes trouble on Caanoo..
+       //ioctl(sounddev, SNDCTL_DSP_SYNC, 0);
+
        close(sounddev);
        sounddev = -1;
 }
 
-int sndout_oss_start(int rate, int stereo, int frames_in_frag)
+int sndout_oss_start(int rate, int stereo)
 {
        static int s_oldrate = 0, s_oldstereo = 0;
        int frag, bsize, bits, ret;
@@ -58,10 +79,11 @@ int sndout_oss_start(int rate, int stereo, int frames_in_frag)
                }
        }
 
-       // try to fit frames_in_frag frames worth of data in fragment
+       // try to fit sndout_oss_frag_frames (video) frames
+       // worth of sound data in OSS fragment
        // ignore mono because it's unlikely to be used and
        // both GP2X and Wiz mixes mono to stereo anyway.
-       bsize = (frames_in_frag * rate / 50) * 4;
+       bsize = (sndout_oss_frag_frames * rate / 50) * 4;
 
        for (frag = 0; bsize; bsize >>= 1, frag++)
                ;
@@ -98,7 +120,7 @@ int sndout_oss_write(const void *buff, int len)
        return write(sounddev, buff, len);
 }
 
-#include "../common/plat.h"
+#include "../plat.h"
 
 /* not really non-blocking, just detects if blocking occurs
  * and starts skipping writes in case it does. */
@@ -153,9 +175,10 @@ int sndout_oss_can_write(int bytes)
        return bi.bytes - bi.fragsize >= bytes ? 1 : 0;
 }
 
-void sndout_oss_sync(void)
+void sndout_oss_wait(void)
 {
-       ioctl(sounddev, SOUND_PCM_SYNC, 0);
+       // FIXME?
+       ioctl(sounddev, SNDCTL_DSP_SYNC, 0);
 }
 
 void sndout_oss_setvol(int l, int r)
@@ -169,7 +192,10 @@ void sndout_oss_setvol(int l, int r)
 
 void sndout_oss_exit(void)
 {
-       if (sounddev >= 0) close(sounddev); sounddev = -1;
-       if (mixerdev >= 0) close(mixerdev); mixerdev = -1;
+       if (sounddev >= 0)
+               close(sounddev);
+       if (mixerdev >= 0)
+               close(mixerdev);
+       sounddev = mixerdev = -1;
 }