/* * 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/dcadsp.h" #include "libavcodec/mathops.h" #if HAVE_ARMV6_INLINE && AV_GCC_VERSION_AT_LEAST(4,4) #define decode_blockcodes decode_blockcodes static inline int decode_blockcodes(int code1, int code2, int levels, int32_t *values) { int32_t 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 #endif /* AVCODEC_ARM_DCA_H */