update my port (same version).

I have added a new option (-b) that allows you to specify 8 or 16bit
output.  The default is still 8bit though.

1 files changed, 231 insertions, 2 deletions

diff --git a/audio/nspmod/files/patch-aa b/audio/nspmod/files/patch-aa
index 2ef0725f0899..d9b77b1fb826 100644
--- a/audio/nspmod/files/patch-aa
+++ b/audio/nspmod/files/patch-aa
@@ -1,5 +1,5 @@
-*** dacio-linux.c.orig	Sun Jun  1 17:44:17 1997
---- dacio-linux.c	Sun Jun  1 17:43:50 1997
+*** dacio-linux.c.orig	Wed Sep  3 14:57:59 1997
+--- dacio-linux.c	Wed Sep  3 14:50:20 1997
 ***************
 *** 3,9 ****
 --- 3,13 ----
@@ -14,3 +14,232 @@
   #include <errno.h>	/*EINTR*/
   #include "defs.h"	/*u8,u16*/
   #include "dacio.h"	/*(dacioXXX)*/
+***************
+*** 47,53 ****
+  static struct {
+      union {
+  	u8 *p8;
+! 	u16 *p16;
+      } p;
+      u8 *top;
+      u8 *bot;
+--- 51,57 ----
+  static struct {
+      union {
+  	u8 *p8;
+! 	i15 *p16;
+      } p;
+      u8 *top;
+      u8 *bot;
+***************
+*** 67,77 ****
+  	exit(1);
+      }
+  #endif
+!     tmp = AFMT_U8;
+      if (ioctl(fd, SNDCTL_DSP_SETFMT, &tmp) < 0) {
+  	perror("dacioConf");
+  	exit(1);
+      }
+      /*fprintf(stderr, "fmt = 0x%x\n", tmp);*/
+  
+      if (ioctl(fd, SNDCTL_DSP_STEREO, &dcp->stereo) < 0) {
+--- 71,109 ----
+  	exit(1);
+      }
+  #endif
+!     switch (dcp->bits) {
+!     case 0:
+!     case 8:
+! 	dcp->bits = 8;
+! 	tmp = AFMT_U8; break;
+!     case 16:
+! 	tmp = AFMT_S16_LE; break;
+!     default:
+! 	fprintf(stderr, "Don't know how to handle %d bit output.\n", dcp->bits);
+! 	exit(1);
+! 	break;
+!     }
+! 
+      if (ioctl(fd, SNDCTL_DSP_SETFMT, &tmp) < 0) {
+  	perror("dacioConf");
+  	exit(1);
+      }
++ 
++     switch (tmp) {
++     case AFMT_U8:
++ 	if (dcp->bits != 8) {
++ 	    fprintf(stderr, "soundcard doesn't support 8bits.\n");
++ 	    exit(1);
++ 	}
++ 	break;
++     case AFMT_S16_LE:
++ 	if (dcp->bits != 16) {
++ 	    fprintf(stderr, "soundcard doesn't support 16bits.\n");
++ 	    exit(1);
++ 	}
++ 	break;
++     }
++ 
+      /*fprintf(stderr, "fmt = 0x%x\n", tmp);*/
+  
+      if (ioctl(fd, SNDCTL_DSP_STEREO, &dcp->stereo) < 0) {
+***************
+*** 90,99 ****
+  	perror("dacioConf");
+  	exit(1);
+      }
+!     /*fprintf(stderr, "buffer size = 0x%x\n", buf.size);*/
+      dci = *dcp;
+      /*if (buf.top != NULL) free(buf.top);*/
+!     buf.top = memPerm(buf.size * sizeof(u8));
+      buf.p.p8 = buf.top;
+      buf.bot = buf.top + buf.size;
+  }
+--- 122,136 ----
+  	perror("dacioConf");
+  	exit(1);
+      }
+!     fprintf(stderr, "sound buffer size = 0x%x\n", buf.size);
+!     tmp = buf.size;
+!     while (tmp <= (0.1 * (dcp->speed * (dcp->stereo+1) * (dcp->bits/8))))
+! 	tmp += buf.size;
+!     buf.size = tmp;
+!     fprintf(stderr, "buffer size = 0x%x\n", buf.size);
+      dci = *dcp;
+      /*if (buf.top != NULL) free(buf.top);*/
+!     buf.top = memPerm(buf.size);
+      buf.p.p8 = buf.top;
+      buf.bot = buf.top + buf.size;
+  }
+***************
+*** 115,121 ****
+      int s;
+  
+      if (buf.p.p8 <= buf.top) return;
+!     for ( ; buf.p.p8 < buf.bot; buf.p.p8++) *buf.p.p8 = 128;
+   RETRY:
+      s = write(fd, buf.top, buf.size);
+      if (s < buf.size) {
+--- 152,165 ----
+      int s;
+  
+      if (buf.p.p8 <= buf.top) return;
+!     switch (dci.bits) {
+!     case 8:
+! 	for ( ; buf.p.p8 < buf.bot; buf.p.p8++) *buf.p.p8 = 128;
+! 	break;
+!     case 16:
+! 	for ( ; buf.p.p8 < buf.bot; buf.p.p16++) *buf.p.p16 = 0;
+! 	break;
+!     }
+   RETRY:
+      s = write(fd, buf.top, buf.size);
+      if (s < buf.size) {
+***************
+*** 179,184 ****
+--- 223,230 ----
+       (tmpvar & ~255)? ~tmpvar >> 16 : tmpvar ) /* 16 will be OK */
+  /*                   ~(tmpvar >> 16) makes longer asm */
+  #endif
++ #define to16bit(x) \
++ 	(((x) * gv) >> 12)
+  
+  /* stereo */
+  static void
+***************
+*** 186,199 ****
+  {
+      const i31 *inbufp = inbuf.p;
+      u8 *u8p = buf.p.p8;
+  
+!     for (; n > 0; n--) {
+! 	i31x tmp;
+! 	*u8p++ = to8bit(*inbufp++, tmp); /* L */
+! 	*u8p++ = to8bit(*inbufp++, tmp); /* R */
+      }
+      inbuf.p = inbufp;
+-     buf.p.p8 = u8p;
+  }
+  
+  /* mono */
+--- 232,257 ----
+  {
+      const i31 *inbufp = inbuf.p;
+      u8 *u8p = buf.p.p8;
++     i15 *s15p = buf.p.p16;
+  
+!     switch (dci.bits) {
+!     case 8:
+! 	for (; n > 0; n--) {
+! 	    i31x tmp;
+! 	    *u8p++ = to8bit(*inbufp++, tmp); /* L */
+! 	    *u8p++ = to8bit(*inbufp++, tmp); /* R */
+! 	}
+! 	buf.p.p8 = u8p;
+! 	break;
+!     case 16:
+! 	for (; n > 0; n--) {
+! 	    *s15p++ = to16bit(*inbufp++); /* L */
+! 	    *s15p++ = to16bit(*inbufp++); /* R */
+! 	} 
+! 	buf.p.p16 = s15p;
+! 	break;
+      }
+      inbuf.p = inbufp;
+  }
+  
+  /* mono */
+***************
+*** 202,220 ****
+  {
+      const i31 *inbufp = inbuf.p;
+      u8 *u8p = buf.p.p8;
+  
+!     for (; n > 0; n--) {
+! 	i31x tmp;
+! 	*u8p++ = to8bit(*inbufp, tmp);
+! 	inbufp += 2;
+      }
+      inbuf.p = inbufp;
+-     buf.p.p8 = u8p;
+  }
+  
+  #define dacioOutHirev(x) \
+      if (dci.stereo) dacioOutHirevS(x); else dacioOutHirevM(x)
+! #define bufRest() (dci.stereo? (buf.bot - buf.p.p8)/2 : buf.bot - buf.p.p8)
+  
+  void
+  dacioOut(void)
+--- 260,290 ----
+  {
+      const i31 *inbufp = inbuf.p;
+      u8 *u8p = buf.p.p8;
++     i15 *s16p = buf.p.p16;
+  
+!     switch (dci.bits) {
+!     case 8:
+! 	for (; n > 0; n--) {
+! 	    i31x tmp;
+! 	    *u8p++ = to8bit(*inbufp, tmp);
+! 	    inbufp += 2;
+! 	}
+! 	buf.p.p8 = u8p;
+! 	break;
+!     case 16:
+! 	for (; n > 0; n--) {
+! 	    *s16p++ = to16bit(*inbufp);
+! 	    inbufp += 2;
+! 	}
+! 	buf.p.p16 = s16p;
+! 	break;
+      }
+      inbuf.p = inbufp;
+  }
+  
+  #define dacioOutHirev(x) \
+      if (dci.stereo) dacioOutHirevS(x); else dacioOutHirevM(x)
+! #define bufRest() ((dci.stereo? (buf.bot - buf.p.p8)/2 : buf.bot - buf.p.p8)/(dci.bits/8))
+  
+  void
+  dacioOut(void)