/*
*
* Bluetooth low-complexity, subband codec (SBC) library
*
* Copyright (C) 2010 Keith Mok <ek9852@gmail.com>
* Copyright (C) 2008-2010 Nokia Corporation
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
* Copyright (C) 2004-2005 Henryk Ploetz <henryk@ploetzli.ch>
* Copyright (C) 2005-2006 Brad Midgley <bmidgley@xmission.com>
*
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <stdint.h>
#include <limits.h>
#include "sbc.h"
#include "sbc_math.h"
#include "sbc_tables.h"
#include "sbc_primitives_iwmmxt.h"
/*
* IWMMXT optimizations
*/
#ifdef SBC_BUILD_WITH_IWMMXT_SUPPORT
static inline void sbc_analyze_four_iwmmxt(const int16_t *in, int32_t *out,
const FIXED_T *consts)
{
asm volatile (
"wldrd wr0, [%0]\n"
"tbcstw wr4, %2\n"
"wldrd wr2, [%1]\n"
"wldrd wr1, [%0, #8]\n"
"wldrd wr3, [%1, #8]\n"
"wmadds wr0, wr2, wr0\n"
" wldrd wr6, [%0, #16]\n"
"wmadds wr1, wr3, wr1\n"
" wldrd wr7, [%0, #24]\n"
"waddwss wr0, wr0, wr4\n"
" wldrd wr8, [%1, #16]\n"
"waddwss wr1, wr1, wr4\n"
" wldrd wr9, [%1, #24]\n"
" wmadds wr6, wr8, wr6\n"
" wldrd wr2, [%0, #32]\n"
" wmadds wr7, wr9, wr7\n"
" wldrd wr3, [%0, #40]\n"
" waddwss wr0, wr6, wr0\n"
" wldrd wr4, [%1, #32]\n"
" waddwss wr1, wr7, wr1\n"
" wldrd wr5, [%1, #40]\n"
" wmadds wr2, wr4, wr2\n"
"wldrd wr6, [%0, #48]\n"
" wmadds wr3, wr5, wr3\n"
"wldrd wr7, [%0, #56]\n"
" waddwss wr0, wr2, wr0\n"
"wldrd wr8, [%1, #48]\n"
" waddwss wr1, wr3, wr1\n"
"wldrd wr9, [%1, #56]\n"
"wmadds wr6, wr8, wr6\n"
" wldrd wr2, [%0, #64]\n"
"wmadds wr7, wr9, wr7\n"
" wldrd wr3, [%0, #72]\n"
"waddwss wr0, wr6, wr0\n"
" wldrd wr4, [%1, #64]\n"
"waddwss wr1, wr7, wr1\n"
" wldrd wr5, [%1, #72]\n"
" wmadds wr2, wr4, wr2\n"
"tmcr wcgr0, %4\n"
" wmadds wr3, wr5, wr3\n"
" waddwss wr0, wr2, wr0\n"
" waddwss wr1, wr3, wr1\n"
"\n"
"wsrawg wr0, wr0, wcgr0\n"
" wldrd wr4, [%1, #80]\n"
"wsrawg wr1, wr1, wcgr0\n"
" wldrd wr5, [%1, #88]\n"
"wpackwss wr0, wr0, wr0\n"
" wldrd wr6, [%1, #96]\n"
"wpackwss wr1, wr1, wr1\n"
"wmadds wr2, wr5, wr0\n"
" wldrd wr7, [%1, #104]\n"
"wmadds wr0, wr4, wr0\n"
"\n"
" wmadds wr3, wr7, wr1\n"
" wmadds wr1, wr6, wr1\n"
" waddwss wr2, wr3, wr2\n"
" waddwss wr0, wr1, wr0\n"
"\n"
"wstrd wr0, [%3]\n"
"wstrd wr2, [%3, #8]\n"
:
: "r" (in), "r" (consts),
"r" (1 << (SBC_PROTO_FIXED4_SCALE - 1)), "r" (out),
"r" (SBC_PROTO_FIXED4_SCALE)
: "wr0", "wr1", "wr2", "wr3", "wr4", "wr5", "wr6", "wr7",
"wr8", "wr9", "wcgr0", "memory");
}
static inline void sbc_analyze_eight_iwmmxt(const int16_t *in, int32_t *out,
const FIXED_T *consts)
{
asm volatile (
"wldrd wr0, [%0]\n"
"tbcstw wr15, %2\n"
"wldrd wr1, [%0, #8]\n"
"wldrd wr2, [%0, #16]\n"
"wldrd wr3, [%0, #24]\n"
"wldrd wr4, [%1]\n"
"wldrd wr5, [%1, #8]\n"
"wldrd wr6, [%1, #16]\n"
"wldrd wr7, [%1, #24]\n"
"wmadds wr0, wr0, wr4\n"
" wldrd wr8, [%1, #32]\n"
"wmadds wr1, wr1, wr5\n"
" wldrd wr9, [%1, #40]\n"
"wmadds wr2, wr2, wr6\n"
" wldrd wr10, [%1, #48]\n"
"wmadds wr3, wr3, wr7\n"
" wldrd wr11, [%1, #56]\n"
"waddwss wr0, wr0, wr15\n"
" wldrd wr4, [%0, #32]\n"
"waddwss wr1, wr1, wr15\n"
" wldrd wr5, [%0, #40]\n"
"waddwss wr2, wr2, wr15\n"
" wldrd wr6, [%0, #48]\n"
"waddwss wr3, wr3, wr15\n"
" wldrd wr7, [%0, #56]\n"
" wmadds wr4, wr4, wr8\n"
" wldrd wr12, [%0, #64]\n"
" wmadds wr5, wr5, wr9\n"
" wldrd wr13, [%0, #72]\n"
" wmadds wr6, wr6, wr10\n"
" wldrd wr14, [%0, #80]\n"
" wmadds wr7, wr7, wr11\n"
" wldrd wr15, [%0, #88]\n"
" waddwss wr0, wr4, wr0\n"
" wldrd wr8, [%1, #64]\n"
" waddwss wr1, wr5, wr1\n"
" wldrd wr9, [%1, #72]\n"
" waddwss wr2, wr6, wr2\n"
" wldrd wr10, [%1, #80]\n"
" waddwss wr3, wr7, wr3\n"
" wldrd wr11, [%1, #88]\n"
" wmadds wr12, wr12, wr8\n"
"wldrd wr4, [%0, #96]\n"
" wmadds wr13, wr13, wr9\n"
"wldrd wr5, [%0, #104]\n"
" wmadds wr14, wr14, wr10\n"
"wldrd wr6, [%0, #112]\n"
" wmadds wr15, wr15, wr11\n"
"wldrd wr7, [%0, #120]\n"
" waddwss wr0, wr12, wr0\n"
"wldrd wr8, [%1, #96]\n"
" waddwss wr1, wr13, wr1\n"
"wldrd wr9, [%1, #104]\n"
" waddwss wr2, wr14, wr2\n"
"wldrd wr10, [%1, #112]\n"
" waddwss wr3, wr15, wr3\n"
"wldrd wr11, [%1, #120]\n"
"wmadds wr4, wr4, wr8\n"
" wldrd wr12, [%0, #128]\n"
"wmadds wr5, wr5, wr9\n"
" wldrd wr13, [%0, #136]\n"
"wmadds wr6, wr6, wr10\n"
" wldrd wr14, [%0, #144]\n"
"wmadds wr7, wr7, wr11\n"
" wldrd wr15, [%0, #152]\n"
"waddwss wr0, wr4, wr0\n"
" wldrd wr8, [%1, #128]\n"
"waddwss wr1, wr5, wr1\n"
" wldrd wr9, [%1, #136]\n"
"waddwss wr2, wr6, wr2\n"
" wldrd wr10, [%1, #144]\n"
" waddwss wr3, wr7, wr3\n"
" wldrd wr11, [%1, #152]\n"
" wmadds wr12, wr12, wr8\n"
"tmcr wcgr0, %4\n"
" wmadds wr13, wr13, wr9\n"
" wmadds wr14, wr14, wr10\n"
" wmadds wr15, wr15, wr11\n"
" waddwss wr0, wr12, wr0\n"
" waddwss wr1, wr13, wr1\n"
" waddwss wr2, wr14, wr2\n"
" waddwss wr3, wr15, wr3\n"
"\n"
"wsrawg wr0, wr0, wcgr0\n"
"wsrawg wr1, wr1, wcgr0\n"
"wsrawg wr2, wr2, wcgr0\n"
"wsrawg wr3, wr3, wcgr0\n"
"\n"
"wpackwss wr0, wr0, wr0\n"
"wpackwss wr1, wr1, wr1\n"
" wldrd wr4, [%1, #160]\n"
"wpackwss wr2, wr2, wr2\n"
" wldrd wr5, [%1, #168]\n"
"wpackwss wr3, wr3, wr3\n"
" wldrd wr6, [%1, #192]\n"
" wmadds wr4, wr4, wr0\n"
" wldrd wr7, [%1, #200]\n"
" wmadds wr5, wr5, wr0\n"
" wldrd wr8, [%1, #224]\n"
" wmadds wr6, wr6, wr1\n"
" wldrd wr9, [%1, #232]\n"
" wmadds wr7, wr7, wr1\n"
" waddwss wr4, wr6, wr4\n"
" waddwss wr5, wr7, wr5\n"
" wmadds wr8, wr8, wr2\n"
"wldrd wr6, [%1, #256]\n"
" wmadds wr9, wr9, wr2\n"
"wldrd wr7, [%1, #264]\n"
"waddwss wr4, wr8, wr4\n"
" waddwss wr5, wr9, wr5\n"
"wmadds wr6, wr6, wr3\n"
"wmadds wr7, wr7, wr3\n"
"waddwss wr4, wr6, wr4\n"
"waddwss wr5, wr7, wr5\n"
"\n"
"wstrd wr4, [%3]\n"
"wstrd wr5, [%3, #8]\n"
"\n"
"wldrd wr6, [%1, #176]\n"
"wldrd wr5, [%1, #184]\n"
"wmadds wr5, wr5, wr0\n"
"wldrd wr8, [%1, #208]\n"
"wmadds wr0, wr6, wr0\n"
"wldrd wr9, [%1, #216]\n"
"wmadds wr9, wr9, wr1\n"
"wldrd wr6, [%1, #240]\n"
"wmadds wr1, wr8, wr1\n"
"wldrd wr7, [%1, #248]\n"
"waddwss wr0, wr1, wr0\n"
"waddwss wr5, wr9, wr5\n"
"wmadds wr7, wr7, wr2\n"
"wldrd wr8, [%1, #272]\n"
"wmadds wr2, wr6, wr2\n"
"wldrd wr9, [%1, #280]\n"
"waddwss wr0, wr2, wr0\n"
"waddwss wr5, wr7, wr5\n"
"wmadds wr9, wr9, wr3\n"
"wmadds wr3, wr8, wr3\n"
"waddwss wr0, wr3, wr0\n"
"waddwss wr5, wr9, wr5\n"
"\n"
"wstrd wr0, [%3, #16]\n"
"wstrd wr5, [%3, #24]\n"
:
: "r" (in), "r" (consts),
"r" (1 << (SBC_PROTO_FIXED8_SCALE - 1)), "r" (out),
"r" (SBC_PROTO_FIXED8_SCALE)
: "wr0", "wr1", "wr2", "wr3", "wr4", "wr5", "wr6", "wr7",
"wr8", "wr9", "wr10", "wr11", "wr12", "wr13", "wr14", "wr15",
"wcgr0", "memory");
}
static inline void sbc_analyze_4b_4s_iwmmxt(int16_t *x, int32_t *out,
int out_stride)
{
/* Analyze blocks */
sbc_analyze_four_iwmmxt(x + 12, out, analysis_consts_fixed4_simd_odd);
out += out_stride;
sbc_analyze_four_iwmmxt(x + 8, out, analysis_consts_fixed4_simd_even);
out += out_stride;
sbc_analyze_four_iwmmxt(x + 4, out, analysis_consts_fixed4_simd_odd);
out += out_stride;
sbc_analyze_four_iwmmxt(x + 0, out, analysis_consts_fixed4_simd_even);
}
static inline void sbc_analyze_4b_8s_iwmmxt(int16_t *x, int32_t *out,
int out_stride)
{
/* Analyze blocks */
sbc_analyze_eight_iwmmxt(x + 24, out, analysis_consts_fixed8_simd_odd);
out += out_stride;
sbc_analyze_eight_iwmmxt(x + 16, out, analysis_consts_fixed8_simd_even);
out += out_stride;
sbc_analyze_eight_iwmmxt(x + 8, out, analysis_consts_fixed8_simd_odd);
out += out_stride;
sbc_analyze_eight_iwmmxt(x + 0, out, analysis_consts_fixed8_simd_even);
}
void sbc_init_primitives_iwmmxt(struct sbc_encoder_state *state)
{
state->sbc_analyze_4b_4s = sbc_analyze_4b_4s_iwmmxt;
state->sbc_analyze_4b_8s = sbc_analyze_4b_8s_iwmmxt;
state->implementation_info = "IWMMXT";
}
#endif