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d8c3170c9f
* qatar/master: (22 commits) g723.1: do not pass large structs by value g723.1: do not bounce intermediate values via memory g723.1: declare a variable in the block it is used g723.1: avoid saving/restoring excitation g723.1: avoid unnecessary memcpy() in residual_interp() g723.1: make postfilter write directly to output buffer g723.1: drop unnecessary variable buf_ptr in formant_postfilter() g723.1: make scale_vector() output to a separate buffer g723.1: make autocorr_max() work on an arbitrary buffer g723.1: do not needlessly use int64_t g723.1: use saturating addition functions g723.1: optimise scale_vector() g723.1: remove useless uses of MUL64() g723.1: remove unnecessary argument 'shift' from dot_product() g723.1: deobfuscate "(x << 4) - x" to "15 * x" celp: optimise ff_celp_lp_synthesis_filter() libavutil: add saturating addition functions cllc: Implement ARGB support cllc: Add support for QRGB cllc: Rename some funcs to represent what they actually do ... Conflicts: LICENSE libavcodec/g723_1.c libavcodec/x86/Makefile Merged-by: Michael Niedermayer <michaelni@gmx.at>
135 lines
3.5 KiB
C
135 lines
3.5 KiB
C
/*
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* Copyright (c) 2010 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 AVUTIL_ARM_INTMATH_H
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#define AVUTIL_ARM_INTMATH_H
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#include <stdint.h>
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#include "config.h"
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#include "libavutil/attributes.h"
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#if HAVE_INLINE_ASM
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#if HAVE_ARMV6
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#define FASTDIV FASTDIV
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static av_always_inline av_const int FASTDIV(int a, int b)
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{
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int r;
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__asm__ ("cmp %2, #2 \n\t"
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"ldr %0, [%3, %2, lsl #2] \n\t"
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"ite le \n\t"
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"lsrle %0, %1, #1 \n\t"
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"smmulgt %0, %0, %1 \n\t"
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: "=&r"(r) : "r"(a), "r"(b), "r"(ff_inverse) : "cc");
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return r;
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}
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#define av_clip_uint8 av_clip_uint8_arm
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static av_always_inline av_const uint8_t av_clip_uint8_arm(int a)
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{
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unsigned x;
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__asm__ ("usat %0, #8, %1" : "=r"(x) : "r"(a));
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return x;
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}
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#define av_clip_int8 av_clip_int8_arm
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static av_always_inline av_const uint8_t av_clip_int8_arm(int a)
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{
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unsigned x;
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__asm__ ("ssat %0, #8, %1" : "=r"(x) : "r"(a));
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return x;
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}
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#define av_clip_uint16 av_clip_uint16_arm
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static av_always_inline av_const uint16_t av_clip_uint16_arm(int a)
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{
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unsigned x;
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__asm__ ("usat %0, #16, %1" : "=r"(x) : "r"(a));
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return x;
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}
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#define av_clip_int16 av_clip_int16_arm
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static av_always_inline av_const int16_t av_clip_int16_arm(int a)
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{
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int x;
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__asm__ ("ssat %0, #16, %1" : "=r"(x) : "r"(a));
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return x;
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}
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#define av_clip_uintp2 av_clip_uintp2_arm
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static av_always_inline av_const unsigned av_clip_uintp2_arm(int a, int p)
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{
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unsigned x;
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__asm__ ("usat %0, %2, %1" : "=r"(x) : "r"(a), "i"(p));
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return x;
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}
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#define av_sat_add32 av_sat_add32_arm
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static av_always_inline int av_sat_add32_arm(int a, int b)
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{
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int r;
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__asm__ ("qadd %0, %1, %2" : "=r"(r) : "r"(a), "r"(b));
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return r;
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}
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#define av_sat_dadd32 av_sat_dadd32_arm
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static av_always_inline int av_sat_dadd32_arm(int a, int b)
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{
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int r;
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__asm__ ("qdadd %0, %1, %2" : "=r"(r) : "r"(a), "r"(b));
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return r;
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}
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#else /* HAVE_ARMV6 */
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#define FASTDIV FASTDIV
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static av_always_inline av_const int FASTDIV(int a, int b)
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{
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int r, t;
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__asm__ ("umull %1, %0, %2, %3"
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: "=&r"(r), "=&r"(t) : "r"(a), "r"(ff_inverse[b]));
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return r;
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}
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#endif /* HAVE_ARMV6 */
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#if HAVE_ASM_MOD_Q
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#define av_clipl_int32 av_clipl_int32_arm
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static av_always_inline av_const int32_t av_clipl_int32_arm(int64_t a)
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{
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int x, y;
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__asm__ ("adds %1, %R2, %Q2, lsr #31 \n\t"
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"itet ne \n\t"
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"mvnne %1, #1<<31 \n\t"
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"moveq %0, %Q2 \n\t"
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"eorne %0, %1, %R2, asr #31 \n\t"
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: "=r"(x), "=&r"(y) : "r"(a) : "cc");
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return x;
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}
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#endif /* HAVE_ASM_MOD_Q */
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#endif /* HAVE_INLINE_ASM */
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#endif /* AVUTIL_ARM_INTMATH_H */
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