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--- src/backends/alc_backend_bsd.c.orig 2006-01-05 15:11:20 UTC
+++ src/backends/alc_backend_bsd.c
@@ -9,7 +9,10 @@
*/
#include "al_siteconfig.h"
+#define __BSD_VISIBLE 1
+
#include <AL/al.h>
+#include <AL/alext.h>
#include <assert.h>
#include <fcntl.h>
#include <sys/soundcard.h>
@@ -113,7 +116,6 @@ static int AL2BSDFMT(int fmt)
*/
static void *grab_write_native(void) {
const char *dsppath = "/dev/dsp";
- int divisor = _alSpot(_AL_DEF_BUFSIZ) | (2<<16);
dsp_fd = open(dsppath, O_WRONLY | O_NONBLOCK);
@@ -126,10 +128,6 @@ static void *grab_write_native(void) {
perror("fcntl");
}
- if(ioctl(dsp_fd, SNDCTL_DSP_SETFRAGMENT, &divisor) < 0) {
- perror("ioctl SETFRAGMENT");
- }
-
FD_ZERO(&dsp_fd_set);
FD_SET(dsp_fd, &dsp_fd_set);
@@ -318,10 +316,12 @@ ALsizei capture_nativedevice(UNUSED(void
}
static ALboolean set_write_native(UNUSED(void *handle),
- UNUSED(unsigned int *bufsiz),
+ unsigned int *bufsiz,
ALenum *fmt,
unsigned int *speed) {
ALuint channels = _alGetChannelsFromFormat(*fmt);
+ int divisor;
+ char *custom_bufsiz;
if(dsp_fd < 0) {
return AL_FALSE;
@@ -364,6 +364,28 @@ static ALboolean set_write_native(UNUSED
*fmt = BSD2ALFMT(*fmt, channels);
+ custom_bufsiz = getenv("OPENAL_BUFFER_SIZE");
+ if (custom_bufsiz != NULL)
+ *bufsiz = atoi(custom_bufsiz);
+ else {
+ if(ioctl(dsp_fd, SNDCTL_DSP_GETBLKSIZE, bufsiz) < 0) {
+#ifdef DEBUG_MAXIMUS
+ fprintf(stderr, "blksize %d\n", *bufsiz);
+ perror("get_devsp blksize ioctl");
+#endif
+ return AL_FALSE;
+ }
+ }
+
+ divisor = _alSpot(*bufsiz) | (2<<16);
+ if(ioctl(dsp_fd, SNDCTL_DSP_SETFRAGMENT, &divisor) < 0) {
+#ifdef DEBUG_MAXIMUS
+ fprintf(stderr, "divisor %d\n", divisor);
+ perror("set_devsp fragment ioctl");
+#endif
+ return AL_FALSE;
+ }
+
return AL_TRUE;
}
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