| /* |
| * |
| * 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 |
