/*

 * optimized mixing code for i386

 */

#define MIX_AREAS_16 mix_areas_16

#define MIX_AREAS_16_MMX mix_areas_16_mmx

#define MIX_AREAS_32 mix_areas_32

#define MIX_AREAS_24 mix_areas_24

#define MIX_AREAS_24_CMOV mix_areas_24_cmov

#define LOCK_PREFIX ""

#define XADD "addl"

#define XSUB "subl"

#include "pcm_dmix_i386.h"

#undef MIX_AREAS_16

#undef MIX_AREAS_16_MMX

#undef MIX_AREAS_32

#undef MIX_AREAS_24

#undef MIX_AREAS_24_CMOV

#undef LOCK_PREFIX

#undef XADD

#undef XSUB

#define MIX_AREAS_16 remix_areas_16

#define MIX_AREAS_16_MMX remix_areas_16_mmx

#define MIX_AREAS_32 remix_areas_32

#define MIX_AREAS_24 remix_areas_24

#define MIX_AREAS_24_CMOV remix_areas_24_cmov

#define LOCK_PREFIX ""

#define XADD "subl"

#define XSUB "addl"

#include "pcm_dmix_i386.h"

#undef MIX_AREAS_16

#undef MIX_AREAS_16_MMX

#undef MIX_AREAS_32

#undef MIX_AREAS_24

#undef MIX_AREAS_24_CMOV

#undef LOCK_PREFIX

#undef XADD

#undef XSUB

#define MIX_AREAS_16 mix_areas_16_smp

#define MIX_AREAS_16_MMX mix_areas_16_smp_mmx

#define MIX_AREAS_32 mix_areas_32_smp

#define MIX_AREAS_24 mix_areas_24_smp

#define MIX_AREAS_24_CMOV mix_areas_24_smp_cmov

#define LOCK_PREFIX "lock ; "

#define XADD "addl"

#define XSUB "subl"

#include "pcm_dmix_i386.h"

#undef MIX_AREAS_16

#undef MIX_AREAS_16_MMX

#undef MIX_AREAS_32

#undef MIX_AREAS_24

#undef MIX_AREAS_24_CMOV

#undef LOCK_PREFIX

#undef XADD

#undef XSUB

#define MIX_AREAS_16 remix_areas_16_smp

#define MIX_AREAS_16_MMX remix_areas_16_smp_mmx

#define MIX_AREAS_32 remix_areas_32_smp

#define MIX_AREAS_24 remix_areas_24_smp

#define MIX_AREAS_24_CMOV remix_areas_24_smp_cmov

#define LOCK_PREFIX "lock ; "

#define XADD "subl"

#define XSUB "addl"

#include "pcm_dmix_i386.h"

#undef MIX_AREAS_16

#undef MIX_AREAS_16_MMX

#undef MIX_AREAS_32

#undef MIX_AREAS_24

#undef MIX_AREAS_24_CMOV

#undef LOCK_PREFIX

#undef XADD

#undef XSUB

#define i386_dmix_supported_format \

	((1ULL << SND_PCM_FORMAT_S16_LE) |\

	 (1ULL << SND_PCM_FORMAT_S32_LE) |\

	 (1ULL << SND_PCM_FORMAT_S24_LE) |\

	 (1ULL << SND_PCM_FORMAT_S24_3LE))

#define dmix_supported_format \

	(i386_dmix_supported_format | generic_dmix_supported_format)

static void mix_select_callbacks(snd_pcm_direct_t *dmix)

{

	static int smp = 0, mmx = 0, cmov = 0;

	if (!dmix->direct_memory_access) {

		generic_mix_select_callbacks(dmix);

		return;

	}

	if (!((1ULL<< dmix->shmptr->s.format) & i386_dmix_supported_format)) {

		generic_mix_select_callbacks(dmix);

		return;

	}

	if (!smp) {

		FILE *in;

		char line[255];

		/* try to determine the capabilities of the 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;

					if (strstr(line, " cmov"))

						cmov = 1;

				}

			}

			fclose(in);

		}

	}

	if (mmx) {

		dmix->u.dmix.mix_areas_16 = smp > 1 ? mix_areas_16_smp_mmx : mix_areas_16_mmx;

		dmix->u.dmix.remix_areas_16 = smp > 1 ? remix_areas_16_smp_mmx : remix_areas_16_mmx;

	} else {

		dmix->u.dmix.mix_areas_16 = smp > 1 ? mix_areas_16_smp : mix_areas_16;

		dmix->u.dmix.remix_areas_16 = smp > 1 ? remix_areas_16_smp : remix_areas_16;

	}

	dmix->u.dmix.mix_areas_32 = smp > 1 ? mix_areas_32_smp : mix_areas_32;

	dmix->u.dmix.remix_areas_32 = smp > 1 ? remix_areas_32_smp : remix_areas_32;

	if (cmov) {

		dmix->u.dmix.mix_areas_24 = smp > 1 ? mix_areas_24_smp_cmov : mix_areas_24_cmov;

		dmix->u.dmix.remix_areas_24 = smp > 1 ? remix_areas_24_smp_cmov : remix_areas_24_cmov;

	} else {

		dmix->u.dmix.mix_areas_24 = smp > 1 ? mix_areas_24_smp: mix_areas_24;

		dmix->u.dmix.remix_areas_24 = smp > 1 ? remix_areas_24_smp: remix_areas_24;

	}

}