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104 lines
4.0 KiB
104 lines
4.0 KiB
/* |
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* Copyright (c) 2011 Mans Rullgard <mans@mansr.com> |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVCODEC_ARM_DCA_H |
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#define AVCODEC_ARM_DCA_H |
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#include <stdint.h> |
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#include "config.h" |
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#include "libavutil/intmath.h" |
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#if HAVE_ARMV6 && HAVE_INLINE_ASM && AV_GCC_VERSION_AT_LEAST(4,4) |
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#define decode_blockcodes decode_blockcodes |
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static inline int decode_blockcodes(int code1, int code2, int levels, |
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int *values) |
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{ |
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int v0, v1, v2, v3, v4, v5; |
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__asm__ ("smmul %8, %14, %18 \n" |
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"smmul %11, %15, %18 \n" |
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"smlabb %14, %8, %17, %14 \n" |
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"smlabb %15, %11, %17, %15 \n" |
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"smmul %9, %8, %18 \n" |
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"smmul %12, %11, %18 \n" |
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"sub %14, %14, %16, lsr #1 \n" |
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"sub %15, %15, %16, lsr #1 \n" |
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"smlabb %8, %9, %17, %8 \n" |
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"smlabb %11, %12, %17, %11 \n" |
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"smmul %10, %9, %18 \n" |
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"smmul %13, %12, %18 \n" |
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"str %14, %0 \n" |
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"str %15, %4 \n" |
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"sub %8, %8, %16, lsr #1 \n" |
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"sub %11, %11, %16, lsr #1 \n" |
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"smlabb %9, %10, %17, %9 \n" |
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"smlabb %12, %13, %17, %12 \n" |
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"smmul %14, %10, %18 \n" |
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"smmul %15, %13, %18 \n" |
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"str %8, %1 \n" |
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"str %11, %5 \n" |
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"sub %9, %9, %16, lsr #1 \n" |
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"sub %12, %12, %16, lsr #1 \n" |
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"smlabb %10, %14, %17, %10 \n" |
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"smlabb %13, %15, %17, %13 \n" |
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"str %9, %2 \n" |
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"str %12, %6 \n" |
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"sub %10, %10, %16, lsr #1 \n" |
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"sub %13, %13, %16, lsr #1 \n" |
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"str %10, %3 \n" |
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"str %13, %7 \n" |
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: "=m"(values[0]), "=m"(values[1]), |
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"=m"(values[2]), "=m"(values[3]), |
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"=m"(values[4]), "=m"(values[5]), |
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"=m"(values[6]), "=m"(values[7]), |
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"=&r"(v0), "=&r"(v1), "=&r"(v2), |
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"=&r"(v3), "=&r"(v4), "=&r"(v5), |
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"+&r"(code1), "+&r"(code2) |
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: "r"(levels - 1), "r"(-levels), "r"(ff_inverse[levels])); |
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return code1 | code2; |
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} |
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#endif |
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#if HAVE_NEON && HAVE_INLINE_ASM && HAVE_ASM_MOD_Y |
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#define int8x8_fmul_int32 int8x8_fmul_int32 |
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static inline void int8x8_fmul_int32(float *dst, const int8_t *src, int scale) |
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{ |
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__asm__ ("vcvt.f32.s32 %2, %2, #4 \n" |
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"vld1.8 {d0}, [%1,:64] \n" |
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"vmovl.s8 q0, d0 \n" |
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"vmovl.s16 q1, d1 \n" |
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"vmovl.s16 q0, d0 \n" |
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"vcvt.f32.s32 q0, q0 \n" |
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"vcvt.f32.s32 q1, q1 \n" |
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"vmul.f32 q0, q0, %y2 \n" |
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"vmul.f32 q1, q1, %y2 \n" |
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"vst1.32 {q0-q1}, [%m0,:128] \n" |
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: "=Um"(*(float (*)[8])dst) |
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: "r"(src), "x"(scale) |
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: "d0", "d1", "d2", "d3"); |
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} |
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#endif |
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#endif /* AVCODEC_ARM_DCA_H */
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