1 files changed, 0 insertions, 138 deletions
diff --git a/sys/i386/isa/sound/gus_vol.c b/sys/i386/isa/sound/gus_vol.c
deleted file mode 100644
index fc66618..0000000
--- a/sys/i386/isa/sound/gus_vol.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * gus_vol.c - Compute volume for GUS.
- * 
- * Greg Lee 1993.
- */
-#include <i386/isa/sound/sound_config.h>
-
-#ifdef CONFIG_GUS
-#include <i386/isa/sound/gus_linearvol.h>
-
-#define GUS_VOLUME	gus_wave_volume
-
-
-extern int      gus_wave_volume;
-unsigned short  gus_adagio_vol(int vel, int mainv, int xpn, int voicev);
-unsigned short  gus_linear_vol(int vol, int mainvol);
-
-/*
- * Calculate gus volume from note velocity, main volume, expression, and
- * intrinsic patch volume given in patch library.  Expression is multiplied
- * in, so it emphasizes differences in note velocity, while main volume is
- * added in -- I don't know whether this is right, but it seems reasonable to
- * me.  (In the previous stage, main volume controller messages were changed
- * to expression controller messages, if they were found to be used for
- * dynamic volume adjustments, so here, main volume can be assumed to be
- * constant throughout a song.)
- * 
- * Intrinsic patch volume is added in, but if over 64 is also multiplied in, so
- * we can give a big boost to very weak voices like nylon guitar and the
- * basses.  The normal value is 64.  Strings are assigned lower values.
- */
-unsigned short
-gus_adagio_vol(int vel, int mainv, int xpn, int voicev)
-{
-    int             i, m, n, x;
-
-    /*
-     * A voice volume of 64 is considered neutral, so adjust the main
-     * volume if something other than this neutral value was assigned in
-     * the patch library.
-     */
-    x = 256 + 6 * (voicev - 64);
-
-    /*
-     * Boost expression by voice volume above neutral.
-     */
-    if (voicev > 65)
-	xpn += voicev - 64;
-    xpn += (voicev - 64) / 2;
-
-    /*
-     * Combine multiplicative and level components.
-     */
-    x = vel * xpn * 6 + (voicev / 4) * x;
-
-#ifdef GUS_VOLUME
-    /*
-     * Further adjustment by installation-specific master volume control
-     * (default 60).
-     */
-    x = (x * GUS_VOLUME * GUS_VOLUME) / 10000;
-#endif
-
-#ifdef GUS_USE_CHN_MAIN_VOLUME
-    /*
-     * Experimental support for the channel main volume
-     */
-
-    mainv = (mainv / 2) + 64;	/* Scale to 64 to 127 */
-    x = (x * mainv * mainv) / 16384;
-#endif
-
-    if (x < 2)
-	return (0);
-    else if (x >= 65535)
-	return ((15 << 8) | 255);
-
-    /*
-     * Convert to gus's logarithmic form with 4 bit exponent i and 8 bit
-     * mantissa m.
-     */
-    n = x;
-    i = 7;
-    if (n < 128) {
-	while (i > 0 && n < (1 << i))
-	    i--;
-    } else
-	while (n > 255) {
-	    n >>= 1;
-	    i++;
-	}
-    /*
-     * Mantissa is part of linear volume not expressed in exponent.
-     * (This is not quite like real logs -- I wonder if it's right.)
-     */
-    m = x - (1 << i);
-
-    /*
-     * Adjust mantissa to 8 bits.
-     */
-    if (m > 0) {
-	if (i > 8)
-	    m >>= i - 8;
-	else if (i < 8)
-	    m <<= 8 - i;
-    }
-    return ((i << 8) + m);
-}
-
-/*
- * Volume-values are interpreted as linear values. Volume is based on the
- * value supplied with SEQ_START_NOTE(), channel main volume (if compiled in)
- * and the volume set by the mixer-device (default 60%).
- */
-
-unsigned short
-gus_linear_vol(int vol, int mainvol)
-{
-    int             mixer_mainvol;
-
-    RANGE (vol, 0, 127) ;
-
-#ifdef GUS_VOLUME
-    mixer_mainvol = GUS_VOLUME;
-#else
-    mixer_mainvol = 100;
-#endif
-
-#ifdef GUS_USE_CHN_MAIN_VOLUME
-    RANGE (mainvol, 0, 127);
-#else
-    mainvol = 127;
-#endif
-
-    return gus_linearvol[(((vol * mainvol) / 127) * mixer_mainvol) / 100];
-}
-
-#endif