989b7181ac
Fixes compilation on 32-bit llvm which didn't allow a cast in an m operand. Originally committed as revision 19086 to svn://svn.ffmpeg.org/ffmpeg/trunk
182 lines
6.2 KiB
C
182 lines
6.2 KiB
C
/*
|
|
* MLP DSP functions x86-optimized
|
|
* Copyright (c) 2009 Ramiro Polla
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#include "libavutil/x86_cpu.h"
|
|
#include "libavcodec/dsputil.h"
|
|
#include "libavcodec/mlp.h"
|
|
|
|
#if HAVE_7REGS && HAVE_TEN_OPERANDS
|
|
|
|
extern void ff_mlp_firorder_8;
|
|
extern void ff_mlp_firorder_7;
|
|
extern void ff_mlp_firorder_6;
|
|
extern void ff_mlp_firorder_5;
|
|
extern void ff_mlp_firorder_4;
|
|
extern void ff_mlp_firorder_3;
|
|
extern void ff_mlp_firorder_2;
|
|
extern void ff_mlp_firorder_1;
|
|
extern void ff_mlp_firorder_0;
|
|
|
|
extern void ff_mlp_iirorder_4;
|
|
extern void ff_mlp_iirorder_3;
|
|
extern void ff_mlp_iirorder_2;
|
|
extern void ff_mlp_iirorder_1;
|
|
extern void ff_mlp_iirorder_0;
|
|
|
|
static const void *firtable[9] = { &ff_mlp_firorder_0, &ff_mlp_firorder_1,
|
|
&ff_mlp_firorder_2, &ff_mlp_firorder_3,
|
|
&ff_mlp_firorder_4, &ff_mlp_firorder_5,
|
|
&ff_mlp_firorder_6, &ff_mlp_firorder_7,
|
|
&ff_mlp_firorder_8 };
|
|
static const void *iirtable[5] = { &ff_mlp_iirorder_0, &ff_mlp_iirorder_1,
|
|
&ff_mlp_iirorder_2, &ff_mlp_iirorder_3,
|
|
&ff_mlp_iirorder_4 };
|
|
|
|
#if ARCH_X86_64
|
|
|
|
#define MLPMUL(label, offset, offs, offc) \
|
|
LABEL_MANGLE(label)": \n\t" \
|
|
"movslq "offset"+"offs"(%0), %%rax\n\t" \
|
|
"movslq "offset"+"offc"(%1), %%rdx\n\t" \
|
|
"imul %%rdx, %%rax\n\t" \
|
|
"add %%rax, %%rsi\n\t"
|
|
|
|
#define FIRMULREG(label, offset, firc)\
|
|
LABEL_MANGLE(label)": \n\t" \
|
|
"movslq "#offset"(%0), %%rax\n\t" \
|
|
"imul %"#firc", %%rax\n\t" \
|
|
"add %%rax, %%rsi\n\t"
|
|
|
|
#define CLEAR_ACCUM \
|
|
"xor %%rsi, %%rsi\n\t"
|
|
|
|
#define SHIFT_ACCUM \
|
|
"shr %%cl, %%rsi\n\t"
|
|
|
|
#define ACCUM "%%rdx"
|
|
#define RESULT "%%rsi"
|
|
#define RESULT32 "%%esi"
|
|
|
|
#else /* if ARCH_X86_32 */
|
|
|
|
#define MLPMUL(label, offset, offs, offc) \
|
|
LABEL_MANGLE(label)": \n\t" \
|
|
"mov "offset"+"offs"(%0), %%eax\n\t" \
|
|
"imull "offset"+"offc"(%1) \n\t" \
|
|
"add %%eax , %%esi\n\t" \
|
|
"adc %%edx , %%ecx\n\t"
|
|
|
|
#define FIRMULREG(label, offset, firc) \
|
|
MLPMUL(label, #offset, "0", "0")
|
|
|
|
#define CLEAR_ACCUM \
|
|
"xor %%esi, %%esi\n\t" \
|
|
"xor %%ecx, %%ecx\n\t"
|
|
|
|
#define SHIFT_ACCUM \
|
|
"mov %%ecx, %%edx\n\t" \
|
|
"mov %%esi, %%eax\n\t" \
|
|
"movzbl %7 , %%ecx\n\t" \
|
|
"shrd %%cl, %%edx, %%eax\n\t" \
|
|
|
|
#define ACCUM "%%edx"
|
|
#define RESULT "%%eax"
|
|
#define RESULT32 "%%eax"
|
|
|
|
#endif /* !ARCH_X86_64 */
|
|
|
|
#define BINC AV_STRINGIFY(4* MAX_CHANNELS)
|
|
#define IOFFS AV_STRINGIFY(4*(MAX_FIR_ORDER + MAX_BLOCKSIZE))
|
|
#define IOFFC AV_STRINGIFY(4* MAX_FIR_ORDER)
|
|
|
|
#define FIRMUL(label, offset) MLPMUL(label, #offset, "0", "0")
|
|
#define IIRMUL(label, offset) MLPMUL(label, #offset, IOFFS, IOFFC)
|
|
|
|
static void mlp_filter_channel_x86(int32_t *state, const int32_t *coeff,
|
|
int firorder, int iirorder,
|
|
unsigned int filter_shift, int32_t mask,
|
|
int blocksize, int32_t *sample_buffer)
|
|
{
|
|
const void *firjump = firtable[firorder];
|
|
const void *iirjump = iirtable[iirorder];
|
|
|
|
blocksize = -blocksize;
|
|
|
|
__asm__ volatile(
|
|
"1: \n\t"
|
|
CLEAR_ACCUM
|
|
"jmp *%5 \n\t"
|
|
FIRMUL (ff_mlp_firorder_8, 0x1c )
|
|
FIRMUL (ff_mlp_firorder_7, 0x18 )
|
|
FIRMUL (ff_mlp_firorder_6, 0x14 )
|
|
FIRMUL (ff_mlp_firorder_5, 0x10 )
|
|
FIRMUL (ff_mlp_firorder_4, 0x0c )
|
|
FIRMULREG(ff_mlp_firorder_3, 0x08,10)
|
|
FIRMULREG(ff_mlp_firorder_2, 0x04, 9)
|
|
FIRMULREG(ff_mlp_firorder_1, 0x00, 8)
|
|
LABEL_MANGLE(ff_mlp_firorder_0)":\n\t"
|
|
"jmp *%6 \n\t"
|
|
IIRMUL (ff_mlp_iirorder_4, 0x0c )
|
|
IIRMUL (ff_mlp_iirorder_3, 0x08 )
|
|
IIRMUL (ff_mlp_iirorder_2, 0x04 )
|
|
IIRMUL (ff_mlp_iirorder_1, 0x00 )
|
|
LABEL_MANGLE(ff_mlp_iirorder_0)":\n\t"
|
|
SHIFT_ACCUM
|
|
"mov "RESULT" ,"ACCUM" \n\t"
|
|
"add (%2) ,"RESULT" \n\t"
|
|
"and %4 ,"RESULT" \n\t"
|
|
"sub $4 , %0 \n\t"
|
|
"mov "RESULT32", (%0) \n\t"
|
|
"mov "RESULT32", (%2) \n\t"
|
|
"add $"BINC" , %2 \n\t"
|
|
"sub "ACCUM" ,"RESULT" \n\t"
|
|
"mov "RESULT32","IOFFS"(%0) \n\t"
|
|
"incl %3 \n\t"
|
|
"js 1b \n\t"
|
|
: /* 0*/"+r"(state),
|
|
/* 1*/"+r"(coeff),
|
|
/* 2*/"+r"(sample_buffer),
|
|
#if ARCH_X86_64
|
|
/* 3*/"+r"(blocksize)
|
|
: /* 4*/"r"((x86_reg)mask), /* 5*/"r"(firjump),
|
|
/* 6*/"r"(iirjump) , /* 7*/"c"(filter_shift)
|
|
, /* 8*/"r"((int64_t)coeff[0])
|
|
, /* 9*/"r"((int64_t)coeff[1])
|
|
, /*10*/"r"((int64_t)coeff[2])
|
|
: "rax", "rdx", "rsi"
|
|
#else /* ARCH_X86_32 */
|
|
/* 3*/"+m"(blocksize)
|
|
: /* 4*/"m"( mask), /* 5*/"m"(firjump),
|
|
/* 6*/"m"(iirjump) , /* 7*/"m"(filter_shift)
|
|
: "eax", "edx", "esi", "ecx"
|
|
#endif /* !ARCH_X86_64 */
|
|
);
|
|
}
|
|
|
|
#endif /* HAVE_7REGS && HAVE_TEN_OPERANDS */
|
|
|
|
void ff_mlp_init_x86(DSPContext* c, AVCodecContext *avctx)
|
|
{
|
|
#if HAVE_7REGS && HAVE_TEN_OPERANDS
|
|
c->mlp_filter_channel = mlp_filter_channel_x86;
|
|
#endif
|
|
}
|