mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-09-06 18:05:37 +00:00
audio: remove lsbindex/popcount in favour of host-utils's ctz32
Signed-off-by: malc <av1474@comtv.ru>
This commit is contained in:
parent
8b438ba3f5
commit
057fa65c5d
|
@ -112,23 +112,6 @@ struct mixeng_volume nominal_volume = {
|
|||
#endif
|
||||
};
|
||||
|
||||
/* http://www.df.lth.se/~john_e/gems/gem002d.html */
|
||||
/* http://www.multi-platforms.com/Tips/PopCount.htm */
|
||||
uint32_t popcount (uint32_t u)
|
||||
{
|
||||
u = ((u&0x55555555) + ((u>>1)&0x55555555));
|
||||
u = ((u&0x33333333) + ((u>>2)&0x33333333));
|
||||
u = ((u&0x0f0f0f0f) + ((u>>4)&0x0f0f0f0f));
|
||||
u = ((u&0x00ff00ff) + ((u>>8)&0x00ff00ff));
|
||||
u = ( u&0x0000ffff) + (u>>16);
|
||||
return u;
|
||||
}
|
||||
|
||||
inline uint32_t lsbindex (uint32_t u)
|
||||
{
|
||||
return popcount ((u&-u)-1);
|
||||
}
|
||||
|
||||
#ifdef AUDIO_IS_FLAWLESS_AND_NO_CHECKS_ARE_REQURIED
|
||||
#error No its not
|
||||
#else
|
||||
|
|
|
@ -147,9 +147,6 @@ static inline void *advance (void *p, int incr)
|
|||
return (d + incr);
|
||||
}
|
||||
|
||||
uint32_t popcount (uint32_t u);
|
||||
uint32_t lsbindex (uint32_t u);
|
||||
|
||||
#ifdef __GNUC__
|
||||
#define audio_MIN(a, b) ( __extension__ ({ \
|
||||
__typeof (a) ta = a; \
|
||||
|
|
|
@ -31,6 +31,7 @@
|
|||
#include <sys/soundcard.h>
|
||||
#endif
|
||||
#include "qemu-common.h"
|
||||
#include "host-utils.h"
|
||||
#include "qemu-char.h"
|
||||
#include "audio.h"
|
||||
|
||||
|
@ -273,7 +274,7 @@ static int oss_open (int in, struct oss_params *req,
|
|||
goto err;
|
||||
}
|
||||
|
||||
mmmmssss = (req->nfrags << 16) | lsbindex (req->fragsize);
|
||||
mmmmssss = (req->nfrags << 16) | ctz32 (req->fragsize);
|
||||
if (ioctl (fd, SNDCTL_DSP_SETFRAGMENT, &mmmmssss)) {
|
||||
oss_logerr2 (errno, typ, "Failed to set buffer length (%d, %d)\n",
|
||||
req->nfrags, req->fragsize);
|
||||
|
|
|
@ -27,6 +27,7 @@
|
|||
#include "isa.h"
|
||||
#include "qdev.h"
|
||||
#include "qemu-timer.h"
|
||||
#include "host-utils.h"
|
||||
|
||||
#define dolog(...) AUD_log ("sb16", __VA_ARGS__)
|
||||
|
||||
|
@ -1092,8 +1093,8 @@ static IO_WRITE_PROTO (mixer_write_datab)
|
|||
{
|
||||
int dma, hdma;
|
||||
|
||||
dma = lsbindex (val & 0xf);
|
||||
hdma = lsbindex (val & 0xf0);
|
||||
dma = ctz32 (val & 0xf);
|
||||
hdma = ctz32 (val & 0xf0);
|
||||
if (dma != s->dma || hdma != s->hdma) {
|
||||
dolog (
|
||||
"attempt to change DMA "
|
||||
|
|
Loading…
Reference in a new issue