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Diffstat (limited to 'ffmpeg1/libavcodec/arm/dca.h')
| -rw-r--r-- | ffmpeg1/libavcodec/arm/dca.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/ffmpeg1/libavcodec/arm/dca.h b/ffmpeg1/libavcodec/arm/dca.h new file mode 100644 index 0000000..2cfd18a --- /dev/null +++ b/ffmpeg1/libavcodec/arm/dca.h @@ -0,0 +1,105 @@ +/* + * Copyright (c) 2011 Mans Rullgard <mans@mansr.com> + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVCODEC_ARM_DCA_H +#define AVCODEC_ARM_DCA_H + +#include <stdint.h> + +#include "config.h" +#include "libavcodec/mathops.h" + +#if HAVE_ARMV6_INLINE && AV_GCC_VERSION_AT_LEAST(4,4) && !CONFIG_THUMB + +#define decode_blockcodes decode_blockcodes +static inline int decode_blockcodes(int code1, int code2, int levels, + int *values) +{ + int v0, v1, v2, v3, v4, v5; + + __asm__ ("smmul %8, %14, %18 \n" + "smmul %11, %15, %18 \n" + "smlabb %14, %8, %17, %14 \n" + "smlabb %15, %11, %17, %15 \n" + "smmul %9, %8, %18 \n" + "smmul %12, %11, %18 \n" + "sub %14, %14, %16, lsr #1 \n" + "sub %15, %15, %16, lsr #1 \n" + "smlabb %8, %9, %17, %8 \n" + "smlabb %11, %12, %17, %11 \n" + "smmul %10, %9, %18 \n" + "smmul %13, %12, %18 \n" + "str %14, %0 \n" + "str %15, %4 \n" + "sub %8, %8, %16, lsr #1 \n" + "sub %11, %11, %16, lsr #1 \n" + "smlabb %9, %10, %17, %9 \n" + "smlabb %12, %13, %17, %12 \n" + "smmul %14, %10, %18 \n" + "smmul %15, %13, %18 \n" + "str %8, %1 \n" + "str %11, %5 \n" + "sub %9, %9, %16, lsr #1 \n" + "sub %12, %12, %16, lsr #1 \n" + "smlabb %10, %14, %17, %10 \n" + "smlabb %13, %15, %17, %13 \n" + "str %9, %2 \n" + "str %12, %6 \n" + "sub %10, %10, %16, lsr #1 \n" + "sub %13, %13, %16, lsr #1 \n" + "str %10, %3 \n" + "str %13, %7 \n" + : "=m"(values[0]), "=m"(values[1]), + "=m"(values[2]), "=m"(values[3]), + "=m"(values[4]), "=m"(values[5]), + "=m"(values[6]), "=m"(values[7]), + "=&r"(v0), "=&r"(v1), "=&r"(v2), + "=&r"(v3), "=&r"(v4), "=&r"(v5), + "+&r"(code1), "+&r"(code2) + : "r"(levels - 1), "r"(-levels), "r"(ff_inverse[levels])); + + return code1 | code2; +} + +#endif + +#if HAVE_NEON_INLINE && HAVE_ASM_MOD_Y + +#define int8x8_fmul_int32 int8x8_fmul_int32 +static inline void int8x8_fmul_int32(float *dst, const int8_t *src, int scale) +{ + __asm__ ("vcvt.f32.s32 %2, %2, #4 \n" + "vld1.8 {d0}, [%1,:64] \n" + "vmovl.s8 q0, d0 \n" + "vmovl.s16 q1, d1 \n" + "vmovl.s16 q0, d0 \n" + "vcvt.f32.s32 q0, q0 \n" + "vcvt.f32.s32 q1, q1 \n" + "vmul.f32 q0, q0, %y2 \n" + "vmul.f32 q1, q1, %y2 \n" + "vst1.32 {q0-q1}, [%m0,:128] \n" + : "=Um"(*(float (*)[8])dst) + : "r"(src), "x"(scale) + : "d0", "d1", "d2", "d3"); +} + +#endif + +#endif /* AVCODEC_ARM_DCA_H */ |