wrapper/FFmpeg
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

avr32: remove explicit support

Browse source 
The vendor has long since switched to Arm, with the last product
reaching their official end-of-life over 11 years ago. Linux support for
the ISA was dropped 7 years ago. More importantly, this architecture was
never supported by upstream GCC, and the vendor fork is stuck at version
4.2, which FFmpeg no longer supports (as per C11 requirement).

Presumably, this is still the case given the lack of vendor support.
Indeed all of the code being removed here consisted of inline assembler
scalar optimisations. A sane C compiler should be able to perform those
automatically nowadays (with the sole exception of fast CLZ detection),
but this is moot as this architecture is evidently dead.
This commit is contained in:
Rémi Denis-Courmont 2024-06-09 14:43:34 +03:00
parent be2cabce32
commit 4819aeebf4
5 changed files with 2 additions and 313 deletions
Download patch file Download diff file Expand all files Collapse all files

101
libavcodec/avr32/mathops.h
View file

@ -1,101 +0,0 @@
/*
* Simple math operations
* Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_AVR32_MATHOPS_H
#define AVCODEC_AVR32_MATHOPS_H
#include <stdint.h>
#include "config.h"
#include "libavutil/common.h"
#if HAVE_INLINE_ASM
#define MULL MULL
static inline av_const int MULL(int a, int b, unsigned shift)
{
union { int64_t x; int hl[2]; } x;
__asm__ ("muls.d %0, %1, %2 \n\t"
"lsr %0, %3 \n\t"
"or %0, %0, %m0<<%4 \n\t"
: "=r"(x) : "r"(b), "r"(a), "i"(shift), "i"(32-shift));
return x.hl[1];
}
#define MULH MULH
static inline av_const int MULH(int a, int b)
{
union { int64_t x; int hl[2]; } x;
__asm__ ("muls.d %0, %1, %2" : "=r"(x.x) : "r"(a), "r"(b));
return x.hl[0];
}
#define MUL64 MUL64
static inline av_const int64_t MUL64(int a, int b)
{
int64_t x;
__asm__ ("muls.d %0, %1, %2" : "=r"(x) : "r"(a), "r"(b));
return x;
}
static inline av_const int64_t MAC64(int64_t d, int a, int b)
{
__asm__ ("macs.d %0, %1, %2" : "+r"(d) : "r"(a), "r"(b));
return d;
}
#define MAC64(d, a, b) ((d) = MAC64(d, a, b))
#define MLS64(d, a, b) MAC64(d, -(a), b)
static inline av_const int MAC16(int d, int a, int b)
{
__asm__ ("machh.w %0, %1:b, %2:b" : "+r"(d) : "r"(a), "r"(b));
return d;
}
#define MAC16(d, a, b) ((d) = MAC16(d, a, b))
#define MLS16(d, a, b) MAC16(d, -(a), b)
#define MUL16 MUL16
static inline av_const int MUL16(int a, int b)
{
int d;
__asm__ ("mulhh.w %0, %1:b, %2:b" : "=r"(d) : "r"(a), "r"(b));
return d;
}
#define mid_pred mid_pred
static inline av_const int mid_pred(int a, int b, int c)
{
int m;
__asm__ ("mov %0, %2 \n\t"
"cp.w %1, %2 \n\t"
"movgt %0, %1 \n\t"
"movgt %1, %2 \n\t"
"cp.w %1, %3 \n\t"
"movle %1, %3 \n\t"
"cp.w %0, %1 \n\t"
"movgt %0, %1 \n\t"
: "=&r"(m), "+r"(a)
: "r"(b), "r"(c));
return m;
}
#endif /* HAVE_INLINE_ASM */
#endif /* AVCODEC_AVR32_MATHOPS_H */

2
libavcodec/mathops.h
View file

@ -39,8 +39,6 @@ extern const uint8_t ff_zigzag_scan[16+1];
#if ARCH_ARM
# include "arm/mathops.h"
#elif ARCH_AVR32
# include "avr32/mathops.h"
#elif ARCH_MIPS
# include "mips/mathops.h"
#elif ARCH_PPC