75 lines
1.7 KiB
C
75 lines
1.7 KiB
C
--- src/backends/alc_backend_bsd.c.orig Thu Jan 5 16:11:20 2006
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+++ src/backends/alc_backend_bsd.c Sun Aug 13 07:39:16 2006
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@@ -9,7 +9,10 @@
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*/
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#include "al_siteconfig.h"
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+#define __BSD_VISIBLE 1
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+
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#include <AL/al.h>
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+#include <AL/alext.h>
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#include <assert.h>
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#include <fcntl.h>
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#include <sys/soundcard.h>
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@@ -113,7 +116,6 @@
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*/
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static void *grab_write_native(void) {
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const char *dsppath = "/dev/dsp";
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- int divisor = _alSpot(_AL_DEF_BUFSIZ) | (2<<16);
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dsp_fd = open(dsppath, O_WRONLY | O_NONBLOCK);
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@@ -126,10 +128,6 @@
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perror("fcntl");
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}
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- if(ioctl(dsp_fd, SNDCTL_DSP_SETFRAGMENT, &divisor) < 0) {
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- perror("ioctl SETFRAGMENT");
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- }
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-
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FD_ZERO(&dsp_fd_set);
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FD_SET(dsp_fd, &dsp_fd_set);
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@@ -318,10 +316,12 @@
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}
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static ALboolean set_write_native(UNUSED(void *handle),
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- UNUSED(unsigned int *bufsiz),
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+ unsigned int *bufsiz,
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ALenum *fmt,
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unsigned int *speed) {
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ALuint channels = _alGetChannelsFromFormat(*fmt);
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+ int divisor;
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+ char *custom_bufsiz;
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if(dsp_fd < 0) {
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return AL_FALSE;
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@@ -363,6 +363,28 @@
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*fmt = BSD2ALFMT(*fmt, channels);
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+
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+ custom_bufsiz = getenv("OPENAL_BUFFER_SIZE");
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+ if (custom_bufsiz != NULL)
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+ *bufsiz = atoi(custom_bufsiz);
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+ else {
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+ if(ioctl(dsp_fd, SNDCTL_DSP_GETBLKSIZE, bufsiz) < 0) {
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+#ifdef DEBUG_MAXIMUS
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+ fprintf(stderr, "blksize %d\n", *bufsiz);
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+ perror("get_devsp blksize ioctl");
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+#endif
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+ return AL_FALSE;
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+ }
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+ }
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+
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+ divisor = _alSpot(*bufsiz) | (2<<16);
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+ if(ioctl(dsp_fd, SNDCTL_DSP_SETFRAGMENT, &divisor) < 0) {
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+#ifdef DEBUG_MAXIMUS
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+ fprintf(stderr, "divisor %d\n", divisor);
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+ perror("set_devsp fragment ioctl");
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+#endif
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+ return AL_FALSE;
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+ }
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return AL_TRUE;
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}
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