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Split arch-dependent codes of dmix

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Split arch-dependent codes of dmix to separate files.
This commit is contained in:
Takashi Iwai 2005-02-08 20:28:29 +00:00
parent c92969845d
commit 22846c486f
5 changed files with 220 additions and 166 deletions
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172
src/pcm/pcm_dmix.c
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@ -121,172 +121,12 @@ static void dmix_server_free(snd_pcm_direct_t *dmix)
* FIXME: optimize it for different architectures
*/
#ifdef __i386__
#define ADD_AND_SATURATE
#define MIX_AREAS1 mix_areas1
#define MIX_AREAS1_MMX mix_areas1_mmx
#define MIX_AREAS2 mix_areas2
#define LOCK_PREFIX ""
#include "pcm_dmix_i386.h"
#undef MIX_AREAS1
#undef MIX_AREAS1_MMX
#undef MIX_AREAS2
#undef LOCK_PREFIX
#define MIX_AREAS1 mix_areas1_smp
#define MIX_AREAS1_MMX mix_areas1_smp_mmx
#define MIX_AREAS2 mix_areas2_smp
#define LOCK_PREFIX "lock ; "
#include "pcm_dmix_i386.h"
#undef MIX_AREAS1
#undef MIX_AREAS1_MMX
#undef MIX_AREAS2
#undef LOCK_PREFIX
static void mix_select_callbacks(snd_pcm_direct_t *dmix)
{
FILE *in;
char line[255];
int smp = 0, mmx = 0;
/* try to determine, if we have a MMX capable CPU */
in = fopen("/proc/cpuinfo", "r");
if (in) {
while (!feof(in)) {
fgets(line, sizeof(line), in);
if (!strncmp(line, "processor", 9))
smp++;
else if (!strncmp(line, "flags", 5)) {
if (strstr(line, " mmx"))
mmx = 1;
}
}
fclose(in);
}
// printf("MMX: %i, SMP: %i\n", mmx, smp);
if (mmx) {
dmix->u.dmix.mix_areas1 = smp > 1 ? mix_areas1_smp_mmx : mix_areas1_mmx;
} else {
dmix->u.dmix.mix_areas1 = smp > 1 ? mix_areas1_smp : mix_areas1;
}
dmix->u.dmix.mix_areas2 = smp > 1 ? mix_areas2_smp : mix_areas2;
}
#endif
#ifdef __x86_64__
#define ADD_AND_SATURATE
#define MIX_AREAS1 mix_areas1
#define MIX_AREAS2 mix_areas2
#define LOCK_PREFIX ""
#include "pcm_dmix_x86_64.h"
#undef MIX_AREAS1
#undef MIX_AREAS2
#undef LOCK_PREFIX
#define MIX_AREAS1 mix_areas1_smp
#define MIX_AREAS2 mix_areas2_smp
#define LOCK_PREFIX "lock ; "
#include "pcm_dmix_x86_64.h"
#undef MIX_AREAS1
#undef MIX_AREAS2
#undef LOCK_PREFIX
static void mix_select_callbacks(snd_pcm_direct_t *dmix)
{
FILE *in;
char line[255];
int smp = 0;
/* try to determine, if we have SMP */
in = fopen("/proc/cpuinfo", "r");
if (in) {
while (!feof(in)) {
fgets(line, sizeof(line), in);
if (!strncmp(line, "processor", 9))
smp++;
}
fclose(in);
}
// printf("SMP: %i\n", smp);
dmix->u.dmix.mix_areas1 = smp > 1 ? mix_areas1_smp : mix_areas1;
dmix->u.dmix.mix_areas2 = smp > 1 ? mix_areas2_smp : mix_areas2;
}
#endif
#ifndef ADD_AND_SATURATE
#warning Please, recode mix_areas1() routine to your architecture...
static void mix_areas1(unsigned int size,
volatile signed short *dst, signed short *src,
volatile signed int *sum, size_t dst_step,
size_t src_step, size_t sum_step)
{
register signed int sample, old_sample;
for (;;) {
sample = *src;
old_sample = *sum;
if (*dst == 0)
sample -= old_sample;
*sum += sample;
do {
old_sample = *sum;
if (old_sample > 0x7fff)
sample = 0x7fff;
else if (old_sample < -0x8000)
sample = -0x8000;
else
sample = old_sample;
*dst = sample;
} while (*sum != old_sample);
if (!--size)
return;
((char *)src) += src_step;
((char *)dst) += dst_step;
((char *)sum) += sum_step;
}
}
#warning Please, recode mix_areas2() routine to your architecture...
static void mix_areas2(unsigned int size,
volatile signed int *dst, signed int *src,
volatile signed int *sum, size_t dst_step,
size_t src_step, size_t sum_step)
{
register signed int sample, old_sample;
for (;;) {
sample = *src / 256;
old_sample = *sum;
if (*dst == 0)
sample -= old_sample;
*sum += sample;
do {
old_sample = *sum;
if (old_sample > 0x7fffff)
sample = 0x7fffffff;
else if (old_sample < -0x800000)
sample = -0x80000000;
else
sample = old_sample * 256;
*dst = sample;
} while (*sum != old_sample);
if (!--size)
return;
((char *)src) += src_step;
((char *)dst) += dst_step;
((char *)sum) += sum_step;
}
}
static void mix_select_callbacks(snd_pcm_direct_t *dmix)
{
dmix->u.dmix.mix_areas1 = mix_areas1;
dmix->u.dmix.mix_areas2 = mix_areas2;
}
#if defined(__i386__)
#include "pcm_dmix_i386.c"
#elif defined(__x86_64__)
#include "pcm_dmix_x86_64.c"
#else
#include "pcm_dmix_generic.c"
#endif
static void mix_areas(snd_pcm_direct_t *dmix,