details: https://anonhg.NetBSD.org/src/rev/87089343d56d
branches: trunk
changeset: 828496:87089343d56d
user: nat <nat%NetBSD.org@localhost>
date: Sat Dec 16 16:09:36 2017 +0000
description:
Replace LINEARN_TO_LINEARN macro with individual optimized functions for
8, 16, 24 and 32 bits linear to linear conversions.
Addresses PR kern/52586.
diffstat:
sys/dev/auconv.c | 1609 ++++++++++++++++++++++++++++++++++++++++++++++-------
sys/dev/auconv.h | 13 +-
2 files changed, 1397 insertions(+), 225 deletions(-)
diffs (truncated from 1677 to 300 lines):
diff -r 2c08e92854f4 -r 87089343d56d sys/dev/auconv.c
--- a/sys/dev/auconv.c Sat Dec 16 16:04:20 2017 +0000
+++ b/sys/dev/auconv.c Sat Dec 16 16:09:36 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: auconv.c,v 1.34 2017/11/07 01:15:42 nat Exp $ */
+/* $NetBSD: auconv.c,v 1.35 2017/12/16 16:09:36 nat Exp $ */
/*
* Copyright (c) 1996 The NetBSD Foundation, Inc.
@@ -35,7 +35,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: auconv.c,v 1.34 2017/11/07 01:15:42 nat Exp $");
+__KERNEL_RCSID(0, "$NetBSD: auconv.c,v 1.35 2017/12/16 16:09:36 nat Exp $");
#include <sys/types.h>
#include <sys/audioio.h>
@@ -113,6 +113,7 @@
stream_filter_factory_t *play_conv;
stream_filter_factory_t *rec_conv;
};
+
#define TABLE_LIST(prec, valid, target) \
{AUDIO_ENCODING_SLINEAR_LE, prec, valid, \
linear##target##_##target##_to_linear##prec, \
@@ -485,225 +486,1395 @@
return 0;
}
-#define LINEARN_LINEAR(n_prec, n_validbits, t_prec) \
- DEFINE_FILTER(linear##n_prec##_##n_validbits##_to_linear##t_prec)\
-{ \
- stream_filter_t *this; \
- int m, err, enc_dst, enc_src; \
- int target, valid, hw, i, j; \
- \
- hw = n_prec / NBBY; \
- valid = n_validbits / NBBY; \
- target = t_prec / NBBY; \
- this = (stream_filter_t *)self; \
- max_used = ((max_used / hw) * hw); \
- \
- if ((err = this->prev->fetch_to(sc, this->prev, this->src, \
- max_used))) \
- return err; \
- m = (((dst->end - dst->start) / target) * target) & ~1; \
- m = min(m, max_used * hw / target); \
- enc_dst = dst->param.encoding; \
- enc_src = this->src->param.encoding; \
- if ((enc_src == AUDIO_ENCODING_SLINEAR_LE \
- && enc_dst == AUDIO_ENCODING_SLINEAR_LE) \
- || (enc_src == AUDIO_ENCODING_ULINEAR_LE \
- && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) { \
- /* \
- * slinearNle -> slinearNle \
- * ulinearNle -> ulinearNle \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = valid; \
- j = target; \
- if (j < i) { \
- while (j > 0) \
- d[--j] = s[--i]; \
- } else { \
- while (i > 0) \
- d[--j] = s[--i]; \
- while (j > 0) \
- d[--j] = 0; \
- } \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE \
- && enc_dst == AUDIO_ENCODING_SLINEAR_BE) \
- || (enc_src == AUDIO_ENCODING_ULINEAR_BE \
- && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) { \
- /* \
- * slinearNbe -> slinearNbe \
- * ulinearNbe -> ulinearNbe \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = valid; \
- j = target; \
- if (j < i) { \
- j = 0; \
- while (j < target) \
- d[j++] = s[i++]; \
- } else { \
- j = 0; \
- i = 0; \
- while (i < valid) \
- d[j++] = s[i++]; \
- while (j < target) \
- d[j++] = 0; \
- } \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE \
- && enc_dst == AUDIO_ENCODING_SLINEAR_BE) \
- || (enc_src == AUDIO_ENCODING_ULINEAR_LE \
- && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) { \
- /* \
- * slinearNle -> slinearNbe \
- * ulinearNle -> ulinearNbe \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = valid; \
- j = target; \
- if (j < i) { \
- while (j > 0) { \
- d[target - j] = s[--i]; \
- j--; \
- } \
- } else { \
- while (j > i) \
- d[--j] = 0; \
- j = 0; \
- while (i > 0) { \
- d[j++] = s[--i]; \
- } \
- } \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } else if ((enc_src == AUDIO_ENCODING_ULINEAR_BE \
- && enc_dst == AUDIO_ENCODING_SLINEAR_LE) \
- || (enc_src == AUDIO_ENCODING_SLINEAR_BE \
- && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) { \
- /* \
- * ulinearNbe -> slinearNle \
- * slinearNbe -> ulinearNle \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = 0; \
- j = target; \
- if (target < valid) { \
- while (j > 0) \
- d[--j] = s[i++]; \
- } else { \
- while (i < valid) \
- d[--j] = s[i++]; \
- while (j > 0) \
- d[--j] = 0; \
- } \
- d[target - 1] ^= 0x80; \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE \
- && enc_dst == AUDIO_ENCODING_SLINEAR_LE) \
- || (enc_src == AUDIO_ENCODING_ULINEAR_BE \
- && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) { \
- /* \
- * slinearNbe -> slinearNle \
- * ulinearNbe -> ulinearNle \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = 0; \
- j = target; \
- if (target < valid) { \
- while (j > 0) \
- d[--j] = s[i++]; \
- } else { \
- while (i < valid) \
- d[--j] = s[i++]; \
- while (j > 0) \
- d[--j] = 0; \
- } \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE \
- && enc_dst == AUDIO_ENCODING_ULINEAR_BE) \
- || (enc_src == AUDIO_ENCODING_ULINEAR_LE \
- && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) { \
- /* \
- * slinearNle -> ulinearNbe \
- * ulinearNle -> slinearNbe \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = valid; \
- j = target; \
- if (j < i) { \
- j = 0; \
- while (j < target) { \
- d[j++] = s[i--]; \
- } \
- } else { \
- j = 0; \
- while (i > 0) \
- d[j++] = s[--i]; \
- while (j < target) \
- d[j++] = 0; \
- } \
- d[0] ^= 0x80; \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE \
- && enc_dst == AUDIO_ENCODING_ULINEAR_BE) \
- || (enc_src == AUDIO_ENCODING_ULINEAR_BE \
- && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) { \
- /* \
- * slinearNbe -> ulinearNbe \
- * ulinearNbe -> slinearNbe \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = 0; \
- j = 0; \
- if (target < valid) { \
- while (j < target) \
- d[j++] = s[i++]; \
- } else { \
- while (i < valid) \
- d[j++] = s[i++]; \
- while (j < target) \
- d[j++] = 0; \
- } \
- d[0] ^= 0x80; \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } else { \
- /* \
- * slinearNle -> ulinearNle \
- * ulinearNle -> slinearNle \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = valid; \
- j = target; \
- if (j < i) { \
- while (j > 0) \
- d[--j] = s[--i]; \
- } else { \
- while (i > 0) \
- d[--j] = s[--i]; \
- while (j > 0) \
- d[--j] = 0; \
- } \
- d[target - 1] ^= 0x80; \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } \
- return 0; \
+DEFINE_FILTER(linear8_8_to_linear32)
+{
+ stream_filter_t *this;
+ int m, err, enc_dst, enc_src;
+
+ this = (stream_filter_t *)self;
+
+ if ((err = this->prev->fetch_to(sc, this->prev, this->src, max_used)))
+ return err;
+ m = (dst->end - dst->start) & ~3;
+ m = min(m, max_used / 4);
+ enc_dst = dst->param.encoding;
+ enc_src = this->src->param.encoding;
+ if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear8be -> slinear32le
+ * ulinear8be -> ulinear32le
+ *
+ * slinear8le -> slinear32le
+ * ulinear8le -> ulinear32le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 1, dst, 4, m) {
+ d[3] = s[0];
+ d[2] = 0;
+ d[1] = 0;
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear8le -> slinear32be
+ * ulinear8le -> ulinear32be
+ *
+ * slinear8be -> slinear32be
+ * ulinear8be -> ulinear32be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 1, dst, 4, m) {
+ d[3] = 0;
+ d[2] = 0;
+ d[1] = 0;
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear8be -> ulinear32be
+ * ulinear8be -> slinear32be
+ *
+ * slinear8le -> ulinear32be
+ * ulinear8le -> slinear32be