--- /dev/null
+/*
+ *
+ * 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
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