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103 lines
3.9 KiB
103 lines
3.9 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 FFmpeg. |
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* |
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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 "libavcodec/mathops.h" |
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#if HAVE_ARMV6_INLINE && AV_GCC_VERSION_AT_LEAST(4,4) && !CONFIG_THUMB |
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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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int32_t *values) |
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{ |
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int32_t v0, v1, v2, v3, v4, v5; |
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__asm__ ("smmul %0, %6, %10 \n" |
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"smmul %3, %7, %10 \n" |
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"smlabb %6, %0, %9, %6 \n" |
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"smlabb %7, %3, %9, %7 \n" |
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"smmul %1, %0, %10 \n" |
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"smmul %4, %3, %10 \n" |
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"sub %6, %6, %8, lsr #1 \n" |
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"sub %7, %7, %8, lsr #1 \n" |
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"smlabb %0, %1, %9, %0 \n" |
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"smlabb %3, %4, %9, %3 \n" |
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"smmul %2, %1, %10 \n" |
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"smmul %5, %4, %10 \n" |
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"str %6, [%11, #0] \n" |
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"str %7, [%11, #16] \n" |
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"sub %0, %0, %8, lsr #1 \n" |
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"sub %3, %3, %8, lsr #1 \n" |
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"smlabb %1, %2, %9, %1 \n" |
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"smlabb %4, %5, %9, %4 \n" |
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"smmul %6, %2, %10 \n" |
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"smmul %7, %5, %10 \n" |
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"str %0, [%11, #4] \n" |
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"str %3, [%11, #20] \n" |
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"sub %1, %1, %8, lsr #1 \n" |
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"sub %4, %4, %8, lsr #1 \n" |
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"smlabb %2, %6, %9, %2 \n" |
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"smlabb %5, %7, %9, %5 \n" |
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"str %1, [%11, #8] \n" |
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"str %4, [%11, #24] \n" |
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"sub %2, %2, %8, lsr #1 \n" |
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"sub %5, %5, %8, lsr #1 \n" |
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"str %2, [%11, #12] \n" |
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"str %5, [%11, #28] \n" |
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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), |
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"r"(ff_inverse[levels]), "r"(values) |
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: "memory"); |
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return code1 | code2; |
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} |
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#endif |
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#if HAVE_NEON_INLINE && 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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