dsputil_vis.c
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C
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/*
* dsputil_vis.c
* Copyright (C) 2003 David S. Miller <davem@redhat.com>
*
* This file is part of ffmpeg, a free MPEG-4 video stream decoder.
* See http://ffmpeg.sourceforge.net/ for updates.
*
* 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 General Public License for more details.
*
* You should have received a copy of the Lesser GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* The *no_round* functions have been added by James A. Morrison, 2003,2004.
The vis code from libmpeg2 was adapted for ffmpeg by James A. Morrison.
*/
#include "config.h"
#ifdef ARCH_SPARC
#include <inttypes.h>
#include <signal.h>
#include <setjmp.h>
#include "../dsputil.h"
#include "vis.h"
/* The trick used in some of this file is the formula from the MMX
* motion comp code, which is:
*
* (x+y+1)>>1 == (x|y)-((x^y)>>1)
*
* This allows us to average 8 bytes at a time in a 64-bit FPU reg.
* We avoid overflows by masking before we do the shift, and we
* implement the shift by multiplying by 1/2 using mul8x16. So in
* VIS this is (assume 'x' is in f0, 'y' is in f2, a repeating mask
* of '0xfe' is in f4, a repeating mask of '0x7f' is in f6, and
* the value 0x80808080 is in f8):
*
* fxor f0, f2, f10
* fand f10, f4, f10
* fmul8x16 f8, f10, f10
* fand f10, f6, f10
* for f0, f2, f12
* fpsub16 f12, f10, f10
*/
#define ATTR_ALIGN(alignd) __attribute__ ((aligned(alignd)))
#define DUP4(x) {x, x, x, x}
#define DUP8(x) {x, x, x, x, x, x, x, x}
static const int16_t constants1[] ATTR_ALIGN(8) = DUP4 (1);
static const int16_t constants2[] ATTR_ALIGN(8) = DUP4 (2);
static const int16_t constants3[] ATTR_ALIGN(8) = DUP4 (3);
static const int16_t constants6[] ATTR_ALIGN(8) = DUP4 (6);
static const int8_t constants_fe[] ATTR_ALIGN(8) = DUP8 (0xfe);
static const int8_t constants_7f[] ATTR_ALIGN(8) = DUP8 (0x7f);
static const int8_t constants128[] ATTR_ALIGN(8) = DUP8 (128);
static const int16_t constants256_512[] ATTR_ALIGN(8) =
{256, 512, 256, 512};
static const int16_t constants256_1024[] ATTR_ALIGN(8) =
{256, 1024, 256, 1024};
#define REF_0 0
#define REF_0_1 1
#define REF_2 2
#define REF_2_1 3
#define REF_4 4
#define REF_4_1 5
#define REF_6 6
#define REF_6_1 7
#define REF_S0 8
#define REF_S0_1 9
#define REF_S2 10
#define REF_S2_1 11
#define REF_S4 12
#define REF_S4_1 13
#define REF_S6 14
#define REF_S6_1 15
#define DST_0 16
#define DST_1 17
#define DST_2 18
#define DST_3 19
#define CONST_1 20
#define CONST_2 20
#define CONST_3 20
#define CONST_6 20
#define MASK_fe 20
#define CONST_128 22
#define CONST_256 22
#define CONST_512 22
#define CONST_1024 22
#define TMP0 24
#define TMP1 25
#define TMP2 26
#define TMP3 27
#define TMP4 28
#define TMP5 29
#define ZERO 30
#define MASK_7f 30
#define TMP6 32
#define TMP8 34
#define TMP10 36
#define TMP12 38
#define TMP14 40
#define TMP16 42
#define TMP18 44
#define TMP20 46
#define TMP22 48
#define TMP24 50
#define TMP26 52
#define TMP28 54
#define TMP30 56
#define TMP32 58
static void MC_put_o_16_vis (uint8_t * dest, const uint8_t * _ref,
const int stride, int height)
{
uint8_t *ref = (uint8_t *) _ref;
ref = vis_alignaddr(ref);
do { /* 5 cycles */
vis_ld64(ref[0], TMP0);
vis_ld64_2(ref, 8, TMP2);
vis_ld64_2(ref, 16, TMP4);
ref += stride;
vis_faligndata(TMP0, TMP2, REF_0);
vis_st64(REF_0, dest[0]);
vis_faligndata(TMP2, TMP4, REF_2);
vis_st64_2(REF_2, dest, 8);
dest += stride;
} while (--height);
}
static void MC_put_o_8_vis (uint8_t * dest, const uint8_t * _ref,
const int stride, int height)
{
uint8_t *ref = (uint8_t *) _ref;
ref = vis_alignaddr(ref);
do { /* 4 cycles */
vis_ld64(ref[0], TMP0);
vis_ld64(ref[8], TMP2);
ref += stride;
/* stall */
vis_faligndata(TMP0, TMP2, REF_0);
vis_st64(REF_0, dest[0]);
dest += stride;
} while (--height);
}
static void MC_avg_o_16_vis (uint8_t * dest, const uint8_t * _ref,
const int stride, int height)
{
uint8_t *ref = (uint8_t *) _ref;
int stride_8 = stride + 8;
ref = vis_alignaddr(ref);
vis_ld64(ref[0], TMP0);
vis_ld64(ref[8], TMP2);
vis_ld64(ref[16], TMP4);
vis_ld64(dest[0], DST_0);
vis_ld64(dest[8], DST_2);
vis_ld64(constants_fe[0], MASK_fe);
vis_faligndata(TMP0, TMP2, REF_0);
vis_ld64(constants_7f[0], MASK_7f);
vis_faligndata(TMP2, TMP4, REF_2);
vis_ld64(constants128[0], CONST_128);
ref += stride;
height = (height >> 1) - 1;
do { /* 24 cycles */
vis_ld64(ref[0], TMP0);
vis_xor(DST_0, REF_0, TMP6);
vis_ld64_2(ref, 8, TMP2);
vis_and(TMP6, MASK_fe, TMP6);
vis_ld64_2(ref, 16, TMP4);
ref += stride;
vis_mul8x16(CONST_128, TMP6, TMP6);
vis_xor(DST_2, REF_2, TMP8);
vis_and(TMP8, MASK_fe, TMP8);
vis_or(DST_0, REF_0, TMP10);
vis_ld64_2(dest, stride, DST_0);
vis_mul8x16(CONST_128, TMP8, TMP8);
vis_or(DST_2, REF_2, TMP12);
vis_ld64_2(dest, stride_8, DST_2);
vis_ld64(ref[0], TMP14);
vis_and(TMP6, MASK_7f, TMP6);
vis_and(TMP8, MASK_7f, TMP8);
vis_psub16(TMP10, TMP6, TMP6);
vis_st64(TMP6, dest[0]);
vis_psub16(TMP12, TMP8, TMP8);
vis_st64_2(TMP8, dest, 8);
dest += stride;
vis_ld64_2(ref, 8, TMP16);
vis_faligndata(TMP0, TMP2, REF_0);
vis_ld64_2(ref, 16, TMP18);
vis_faligndata(TMP2, TMP4, REF_2);
ref += stride;
vis_xor(DST_0, REF_0, TMP20);
vis_and(TMP20, MASK_fe, TMP20);
vis_xor(DST_2, REF_2, TMP22);
vis_mul8x16(CONST_128, TMP20, TMP20);
vis_and(TMP22, MASK_fe, TMP22);
vis_or(DST_0, REF_0, TMP24);
vis_mul8x16(CONST_128, TMP22, TMP22);
vis_or(DST_2, REF_2, TMP26);
vis_ld64_2(dest, stride, DST_0);
vis_faligndata(TMP14, TMP16, REF_0);
vis_ld64_2(dest, stride_8, DST_2);
vis_faligndata(TMP16, TMP18, REF_2);
vis_and(TMP20, MASK_7f, TMP20);
vis_and(TMP22, MASK_7f, TMP22);
vis_psub16(TMP24, TMP20, TMP20);
vis_st64(TMP20, dest[0]);
vis_psub16(TMP26, TMP22, TMP22);
vis_st64_2(TMP22, dest, 8);
dest += stride;
} while (--height);
vis_ld64(ref[0], TMP0);
vis_xor(DST_0, REF_0, TMP6);
vis_ld64_2(ref, 8, TMP2);
vis_and(TMP6, MASK_fe, TMP6);
vis_ld64_2(ref, 16, TMP4);
vis_mul8x16(CONST_128, TMP6, TMP6);
vis_xor(DST_2, REF_2, TMP8);
vis_and(TMP8, MASK_fe, TMP8);
vis_or(DST_0, REF_0, TMP10);
vis_ld64_2(dest, stride, DST_0);
vis_mul8x16(CONST_128, TMP8, TMP8);
vis_or(DST_2, REF_2, TMP12);
vis_ld64_2(dest, stride_8, DST_2);
vis_ld64(ref[0], TMP14);
vis_and(TMP6, MASK_7f, TMP6);
vis_and(TMP8, MASK_7f, TMP8);
vis_psub16(TMP10, TMP6, TMP6);
vis_st64(TMP6, dest[0]);
vis_psub16(TMP12, TMP8, TMP8);
vis_st64_2(TMP8, dest, 8);
dest += stride;
vis_faligndata(TMP0, TMP2, REF_0);
vis_faligndata(TMP2, TMP4, REF_2);
vis_xor(DST_0, REF_0, TMP20);
vis_and(TMP20, MASK_fe, TMP20);
vis_xor(DST_2, REF_2, TMP22);
vis_mul8x16(CONST_128, TMP20, TMP20);
vis_and(TMP22, MASK_fe, TMP22);
vis_or(DST_0, REF_0, TMP24);
vis_mul8x16(CONST_128, TMP22, TMP22);
vis_or(DST_2, REF_2, TMP26);
vis_and(TMP20, MASK_7f, TMP20);
vis_and(TMP22, MASK_7f, TMP22);
vis_psub16(TMP24, TMP20, TMP20);
vis_st64(TMP20, dest[0]);
vis_psub16(TMP26, TMP22, TMP22);
vis_st64_2(TMP22, dest, 8);
}
static void MC_avg_o_8_vis (uint8_t * dest, const uint8_t * _ref,
const int stride, int height)
{
uint8_t *ref = (uint8_t *) _ref;
ref = vis_alignaddr(ref);
vis_ld64(ref[0], TMP0);
vis_ld64(ref[8], TMP2);
vis_ld64(dest[0], DST_0);
vis_ld64(constants_fe[0], MASK_fe);
vis_ld64(constants_7f[0], MASK_7f);
vis_faligndata(TMP0, TMP2, REF_0);
vis_ld64(constants128[0], CONST_128);
ref += stride;
height = (height >> 1) - 1;
do { /* 12 cycles */
vis_ld64(ref[0], TMP0);
vis_xor(DST_0, REF_0, TMP4);
vis_ld64(ref[8], TMP2);
vis_and(TMP4, MASK_fe, TMP4);
vis_or(DST_0, REF_0, TMP6);
vis_ld64_2(dest, stride, DST_0);
ref += stride;
vis_mul8x16(CONST_128, TMP4, TMP4);
vis_ld64(ref[0], TMP12);
vis_faligndata(TMP0, TMP2, REF_0);
vis_ld64(ref[8], TMP2);
vis_xor(DST_0, REF_0, TMP0);
ref += stride;
vis_and(TMP0, MASK_fe, TMP0);
vis_and(TMP4, MASK_7f, TMP4);
vis_psub16(TMP6, TMP4, TMP4);
vis_st64(TMP4, dest[0]);
dest += stride;
vis_mul8x16(CONST_128, TMP0, TMP0);
vis_or(DST_0, REF_0, TMP6);
vis_ld64_2(dest, stride, DST_0);
vis_faligndata(TMP12, TMP2, REF_0);
vis_and(TMP0, MASK_7f, TMP0);
vis_psub16(TMP6, TMP0, TMP4);
vis_st64(TMP4, dest[0]);
dest += stride;
} while (--height);
vis_ld64(ref[0], TMP0);
vis_xor(DST_0, REF_0, TMP4);
vis_ld64(ref[8], TMP2);
vis_and(TMP4, MASK_fe, TMP4);
vis_or(DST_0, REF_0, TMP6);
vis_ld64_2(dest, stride, DST_0);
vis_mul8x16(CONST_128, TMP4, TMP4);
vis_faligndata(TMP0, TMP2, REF_0);
vis_xor(DST_0, REF_0, TMP0);
vis_and(TMP0, MASK_fe, TMP0);
vis_and(TMP4, MASK_7f, TMP4);
vis_psub16(TMP6, TMP4, TMP4);
vis_st64(TMP4, dest[0]);
dest += stride;
vis_mul8x16(CONST_128, TMP0, TMP0);
vis_or(DST_0, REF_0, TMP6);
vis_and(TMP0, MASK_7f, TMP0);
vis_psub16(TMP6, TMP0, TMP4);
vis_st64(TMP4, dest[0]);
}
static void MC_put_x_16_vis (uint8_t * dest, const uint8_t * _ref,
const int stride, int height)
{
uint8_t *ref = (uint8_t *) _ref;
unsigned long off = (unsigned long) ref & 0x7;
unsigned long off_plus_1 = off + 1;
ref = vis_alignaddr(ref);
vis_ld64(ref[0], TMP0);
vis_ld64_2(ref, 8, TMP2);
vis_ld64_2(ref, 16, TMP4);
vis_ld64(constants_fe[0], MASK_fe);
vis_ld64(constants_7f[0], MASK_7f);
vis_faligndata(TMP0, TMP2, REF_0);
vis_ld64(constants128[0], CONST_128);
vis_faligndata(TMP2, TMP4, REF_4);
if (off != 0x7) {
vis_alignaddr_g0((void *)off_plus_1);
vis_faligndata(TMP0, TMP2, REF_2);
vis_faligndata(TMP2, TMP4, REF_6);
} else {
vis_src1(TMP2, REF_2);
vis_src1(TMP4, REF_6);
}
ref += stride;
height = (height >> 1) - 1;
do { /* 34 cycles */
vis_ld64(ref[0], TMP0);
vis_xor(REF_0, REF_2, TMP6);
vis_ld64_2(ref, 8, TMP2);
vis_xor(REF_4, REF_6, TMP8);
vis_ld64_2(ref, 16, TMP4);
vis_and(TMP6, MASK_fe, TMP6);
ref += stride;
vis_ld64(ref[0], TMP14);
vis_mul8x16(CONST_128, TMP6, TMP6);
vis_and(TMP8, MASK_fe, TMP8);
vis_ld64_2(ref, 8, TMP16);
vis_mul8x16(CONST_128, TMP8, TMP8);
vis_or(REF_0, REF_2, TMP10);
vis_ld64_2(ref, 16, TMP18);
ref += stride;
vis_or(REF_4, REF_6, TMP12);
vis_alignaddr_g0((void *)off);
vis_faligndata(TMP0, TMP2, REF_0);
vis_faligndata(TMP2, TMP4, REF_4);
if (off != 0x7) {
vis_alignaddr_g0((void *)off_plus_1);
vis_faligndata(TMP0, TMP2, REF_2);
vis_faligndata(TMP2, TMP4, REF_6);
} else {
vis_src1(TMP2, REF_2);
vis_src1(TMP4, REF_6);
}
vis_and(TMP6, MASK_7f, TMP6);
vis_and(TMP8, MASK_7f, TMP8);
vis_psub16(TMP10, TMP6, TMP6);
vis_st64(TMP6, dest[0]);
vis_psub16(TMP12, TMP8, TMP8);
vis_st64_2(TMP8, dest, 8);
dest += stride;
vis_xor(REF_0, REF_2, TMP6);
vis_xor(REF_4, REF_6, TMP8);
vis_and(TMP6, MASK_fe, TMP6);
vis_mul8x16(CONST_128, TMP6, TMP6);
vis_and(TMP8, MASK_fe, TMP8);
vis_mul8x16(CONST_128, TMP8, TMP8);
vis_or(REF_0, REF_2, TMP10);
vis_or(REF_4, REF_6, TMP12);
vis_alignaddr_g0((void *)off);
vis_faligndata(TMP14, TMP16, REF_0);
vis_faligndata(TMP16, TMP18, REF_4);
if (off != 0x7) {
vis_alignaddr_g0((void *)off_plus_1);
vis_faligndata(TMP14, TMP16, REF_2);
vis_faligndata(TMP16, TMP18, REF_6);
} else {
vis_src1(TMP16, REF_2);
vis_src1(TMP18, REF_6);
}
vis_and(TMP6, MASK_7f, TMP6);
vis_and(TMP8, MASK_7f, TMP8);
vis_psub16(TMP10, TMP6, TMP6);
vis_st64(TMP6, dest[0]);
vis_psub16(TMP12, TMP8, TMP8);
vis_st64_2(TMP8, dest, 8);
dest += stride;
} while (--height);
vis_ld64(ref[0], TMP0);
vis_xor(REF_0, REF_2, TMP6);
vis_ld64_2(ref, 8, TMP2);
vis_xor(REF_4, REF_6, TMP8);
vis_ld64_2(ref, 16, TMP4);
vis_and(TMP6, MASK_fe, TMP6);
vis_mul8x16(CONST_128, TMP6, TMP6);
vis_and(TMP8, MASK_fe, TMP8);
vis_mul8x16(CONST_128, TMP8, TMP8);
vis_or(REF_0, REF_2, TMP10);
vis_or(REF_4, REF_6, TMP12);
vis_alignaddr_g0((void *)off);
vis_faligndata(TMP0, TMP2, REF_0);
vis_faligndata(TMP2, TMP4, REF_4);
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