mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
e407f4173a
GCC 4.3 and later are more particular about signedness matching
in vector operations. The operations under if(rangered) were
missing assignments and thus had no effect.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 381efba0ec)
408 lines
14 KiB
C
408 lines
14 KiB
C
/*
|
|
* VC-1 and WMV3 decoder - DSP functions AltiVec-optimized
|
|
* Copyright (c) 2006 Konstantin Shishkov
|
|
*
|
|
* 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 "libavcodec/dsputil.h"
|
|
#include "libavcodec/vc1dsp.h"
|
|
|
|
#include "util_altivec.h"
|
|
#include "dsputil_altivec.h"
|
|
|
|
// main steps of 8x8 transform
|
|
#define STEP8(s0, s1, s2, s3, s4, s5, s6, s7, vec_rnd) \
|
|
do { \
|
|
t0 = vec_sl(vec_add(s0, s4), vec_2); \
|
|
t0 = vec_add(vec_sl(t0, vec_1), t0); \
|
|
t0 = vec_add(t0, vec_rnd); \
|
|
t1 = vec_sl(vec_sub(s0, s4), vec_2); \
|
|
t1 = vec_add(vec_sl(t1, vec_1), t1); \
|
|
t1 = vec_add(t1, vec_rnd); \
|
|
t2 = vec_add(vec_sl(s6, vec_2), vec_sl(s6, vec_1)); \
|
|
t2 = vec_add(t2, vec_sl(s2, vec_4)); \
|
|
t3 = vec_add(vec_sl(s2, vec_2), vec_sl(s2, vec_1)); \
|
|
t3 = vec_sub(t3, vec_sl(s6, vec_4)); \
|
|
t4 = vec_add(t0, t2); \
|
|
t5 = vec_add(t1, t3); \
|
|
t6 = vec_sub(t1, t3); \
|
|
t7 = vec_sub(t0, t2); \
|
|
\
|
|
t0 = vec_sl(vec_add(s1, s3), vec_4); \
|
|
t0 = vec_add(t0, vec_sl(s5, vec_3)); \
|
|
t0 = vec_add(t0, vec_sl(s7, vec_2)); \
|
|
t0 = vec_add(t0, vec_sub(s5, s3)); \
|
|
\
|
|
t1 = vec_sl(vec_sub(s1, s5), vec_4); \
|
|
t1 = vec_sub(t1, vec_sl(s7, vec_3)); \
|
|
t1 = vec_sub(t1, vec_sl(s3, vec_2)); \
|
|
t1 = vec_sub(t1, vec_add(s1, s7)); \
|
|
\
|
|
t2 = vec_sl(vec_sub(s7, s3), vec_4); \
|
|
t2 = vec_add(t2, vec_sl(s1, vec_3)); \
|
|
t2 = vec_add(t2, vec_sl(s5, vec_2)); \
|
|
t2 = vec_add(t2, vec_sub(s1, s7)); \
|
|
\
|
|
t3 = vec_sl(vec_sub(s5, s7), vec_4); \
|
|
t3 = vec_sub(t3, vec_sl(s3, vec_3)); \
|
|
t3 = vec_add(t3, vec_sl(s1, vec_2)); \
|
|
t3 = vec_sub(t3, vec_add(s3, s5)); \
|
|
\
|
|
s0 = vec_add(t4, t0); \
|
|
s1 = vec_add(t5, t1); \
|
|
s2 = vec_add(t6, t2); \
|
|
s3 = vec_add(t7, t3); \
|
|
s4 = vec_sub(t7, t3); \
|
|
s5 = vec_sub(t6, t2); \
|
|
s6 = vec_sub(t5, t1); \
|
|
s7 = vec_sub(t4, t0); \
|
|
}while(0)
|
|
|
|
#define SHIFT_HOR8(s0, s1, s2, s3, s4, s5, s6, s7) \
|
|
do { \
|
|
s0 = vec_sra(s0, vec_3); \
|
|
s1 = vec_sra(s1, vec_3); \
|
|
s2 = vec_sra(s2, vec_3); \
|
|
s3 = vec_sra(s3, vec_3); \
|
|
s4 = vec_sra(s4, vec_3); \
|
|
s5 = vec_sra(s5, vec_3); \
|
|
s6 = vec_sra(s6, vec_3); \
|
|
s7 = vec_sra(s7, vec_3); \
|
|
}while(0)
|
|
|
|
#define SHIFT_VERT8(s0, s1, s2, s3, s4, s5, s6, s7) \
|
|
do { \
|
|
s0 = vec_sra(s0, vec_7); \
|
|
s1 = vec_sra(s1, vec_7); \
|
|
s2 = vec_sra(s2, vec_7); \
|
|
s3 = vec_sra(s3, vec_7); \
|
|
s4 = vec_sra(vec_add(s4, vec_1s), vec_7); \
|
|
s5 = vec_sra(vec_add(s5, vec_1s), vec_7); \
|
|
s6 = vec_sra(vec_add(s6, vec_1s), vec_7); \
|
|
s7 = vec_sra(vec_add(s7, vec_1s), vec_7); \
|
|
}while(0)
|
|
|
|
/* main steps of 4x4 transform */
|
|
#define STEP4(s0, s1, s2, s3, vec_rnd) \
|
|
do { \
|
|
t1 = vec_add(vec_sl(s0, vec_4), s0); \
|
|
t1 = vec_add(t1, vec_rnd); \
|
|
t2 = vec_add(vec_sl(s2, vec_4), s2); \
|
|
t0 = vec_add(t1, t2); \
|
|
t1 = vec_sub(t1, t2); \
|
|
t3 = vec_sl(vec_sub(s3, s1), vec_1); \
|
|
t3 = vec_add(t3, vec_sl(t3, vec_2)); \
|
|
t2 = vec_add(t3, vec_sl(s1, vec_5)); \
|
|
t3 = vec_add(t3, vec_sl(s3, vec_3)); \
|
|
t3 = vec_add(t3, vec_sl(s3, vec_2)); \
|
|
s0 = vec_add(t0, t2); \
|
|
s1 = vec_sub(t1, t3); \
|
|
s2 = vec_add(t1, t3); \
|
|
s3 = vec_sub(t0, t2); \
|
|
}while (0)
|
|
|
|
#define SHIFT_HOR4(s0, s1, s2, s3) \
|
|
s0 = vec_sra(s0, vec_3); \
|
|
s1 = vec_sra(s1, vec_3); \
|
|
s2 = vec_sra(s2, vec_3); \
|
|
s3 = vec_sra(s3, vec_3);
|
|
|
|
#define SHIFT_VERT4(s0, s1, s2, s3) \
|
|
s0 = vec_sra(s0, vec_7); \
|
|
s1 = vec_sra(s1, vec_7); \
|
|
s2 = vec_sra(s2, vec_7); \
|
|
s3 = vec_sra(s3, vec_7);
|
|
|
|
/** Do inverse transform on 8x8 block
|
|
*/
|
|
static void vc1_inv_trans_8x8_altivec(DCTELEM block[64],
|
|
int sign, int rangered)
|
|
{
|
|
vector signed short src0, src1, src2, src3, src4, src5, src6, src7;
|
|
vector signed int s0, s1, s2, s3, s4, s5, s6, s7;
|
|
vector signed int s8, s9, sA, sB, sC, sD, sE, sF;
|
|
vector signed int t0, t1, t2, t3, t4, t5, t6, t7;
|
|
const vector signed int vec_64 = vec_sl(vec_splat_s32(4), vec_splat_u32(4));
|
|
const vector unsigned int vec_7 = vec_splat_u32(7);
|
|
const vector unsigned int vec_4 = vec_splat_u32(4);
|
|
const vector signed int vec_4s = vec_splat_s32(4);
|
|
const vector unsigned int vec_3 = vec_splat_u32(3);
|
|
const vector unsigned int vec_2 = vec_splat_u32(2);
|
|
const vector signed int vec_1s = vec_splat_s32(1);
|
|
const vector unsigned int vec_1 = vec_splat_u32(1);
|
|
const vector unsigned short rangered_shift = vec_splat_u16(1);
|
|
const vector signed short signed_bias = vec_sl(vec_splat_s16(4),
|
|
vec_splat_u16(4));
|
|
|
|
src0 = vec_ld( 0, block);
|
|
src1 = vec_ld( 16, block);
|
|
src2 = vec_ld( 32, block);
|
|
src3 = vec_ld( 48, block);
|
|
src4 = vec_ld( 64, block);
|
|
src5 = vec_ld( 80, block);
|
|
src6 = vec_ld( 96, block);
|
|
src7 = vec_ld(112, block);
|
|
|
|
s0 = vec_unpackl(src0);
|
|
s1 = vec_unpackl(src1);
|
|
s2 = vec_unpackl(src2);
|
|
s3 = vec_unpackl(src3);
|
|
s4 = vec_unpackl(src4);
|
|
s5 = vec_unpackl(src5);
|
|
s6 = vec_unpackl(src6);
|
|
s7 = vec_unpackl(src7);
|
|
s8 = vec_unpackh(src0);
|
|
s9 = vec_unpackh(src1);
|
|
sA = vec_unpackh(src2);
|
|
sB = vec_unpackh(src3);
|
|
sC = vec_unpackh(src4);
|
|
sD = vec_unpackh(src5);
|
|
sE = vec_unpackh(src6);
|
|
sF = vec_unpackh(src7);
|
|
STEP8(s0, s1, s2, s3, s4, s5, s6, s7, vec_4s);
|
|
SHIFT_HOR8(s0, s1, s2, s3, s4, s5, s6, s7);
|
|
STEP8(s8, s9, sA, sB, sC, sD, sE, sF, vec_4s);
|
|
SHIFT_HOR8(s8, s9, sA, sB, sC, sD, sE, sF);
|
|
src0 = vec_pack(s8, s0);
|
|
src1 = vec_pack(s9, s1);
|
|
src2 = vec_pack(sA, s2);
|
|
src3 = vec_pack(sB, s3);
|
|
src4 = vec_pack(sC, s4);
|
|
src5 = vec_pack(sD, s5);
|
|
src6 = vec_pack(sE, s6);
|
|
src7 = vec_pack(sF, s7);
|
|
TRANSPOSE8(src0, src1, src2, src3, src4, src5, src6, src7);
|
|
|
|
s0 = vec_unpackl(src0);
|
|
s1 = vec_unpackl(src1);
|
|
s2 = vec_unpackl(src2);
|
|
s3 = vec_unpackl(src3);
|
|
s4 = vec_unpackl(src4);
|
|
s5 = vec_unpackl(src5);
|
|
s6 = vec_unpackl(src6);
|
|
s7 = vec_unpackl(src7);
|
|
s8 = vec_unpackh(src0);
|
|
s9 = vec_unpackh(src1);
|
|
sA = vec_unpackh(src2);
|
|
sB = vec_unpackh(src3);
|
|
sC = vec_unpackh(src4);
|
|
sD = vec_unpackh(src5);
|
|
sE = vec_unpackh(src6);
|
|
sF = vec_unpackh(src7);
|
|
STEP8(s0, s1, s2, s3, s4, s5, s6, s7, vec_64);
|
|
SHIFT_VERT8(s0, s1, s2, s3, s4, s5, s6, s7);
|
|
STEP8(s8, s9, sA, sB, sC, sD, sE, sF, vec_64);
|
|
SHIFT_VERT8(s8, s9, sA, sB, sC, sD, sE, sF);
|
|
src0 = vec_pack(s8, s0);
|
|
src1 = vec_pack(s9, s1);
|
|
src2 = vec_pack(sA, s2);
|
|
src3 = vec_pack(sB, s3);
|
|
src4 = vec_pack(sC, s4);
|
|
src5 = vec_pack(sD, s5);
|
|
src6 = vec_pack(sE, s6);
|
|
src7 = vec_pack(sF, s7);
|
|
|
|
if (rangered) {
|
|
if (!sign) {
|
|
src0 = vec_sub(src0, signed_bias);
|
|
src1 = vec_sub(src1, signed_bias);
|
|
src2 = vec_sub(src2, signed_bias);
|
|
src3 = vec_sub(src3, signed_bias);
|
|
src4 = vec_sub(src4, signed_bias);
|
|
src5 = vec_sub(src5, signed_bias);
|
|
src6 = vec_sub(src6, signed_bias);
|
|
src7 = vec_sub(src7, signed_bias);
|
|
}
|
|
src0 = vec_sl(src0, rangered_shift);
|
|
src1 = vec_sl(src1, rangered_shift);
|
|
src2 = vec_sl(src2, rangered_shift);
|
|
src3 = vec_sl(src3, rangered_shift);
|
|
src4 = vec_sl(src4, rangered_shift);
|
|
src5 = vec_sl(src5, rangered_shift);
|
|
src6 = vec_sl(src6, rangered_shift);
|
|
src7 = vec_sl(src7, rangered_shift);
|
|
}
|
|
|
|
vec_st(src0, 0, block);
|
|
vec_st(src1, 16, block);
|
|
vec_st(src2, 32, block);
|
|
vec_st(src3, 48, block);
|
|
vec_st(src4, 64, block);
|
|
vec_st(src5, 80, block);
|
|
vec_st(src6, 96, block);
|
|
vec_st(src7,112, block);
|
|
}
|
|
|
|
static void vc1_inv_trans_8x8_add_altivec(uint8_t *dest, int stride, DCTELEM *b)
|
|
{
|
|
vc1_inv_trans_8x8_altivec(b, 0, 0);
|
|
ff_add_pixels_clamped_c(b, dest, stride);
|
|
}
|
|
|
|
static void vc1_inv_trans_8x8_put_signed_altivec(uint8_t *dest, int stride, DCTELEM *b)
|
|
{
|
|
vc1_inv_trans_8x8_altivec(b, 1, 0);
|
|
ff_put_signed_pixels_clamped_c(b, dest, stride);
|
|
}
|
|
|
|
static void vc1_inv_trans_8x8_put_signed_rangered_altivec(uint8_t *dest, int stride, DCTELEM *b)
|
|
{
|
|
vc1_inv_trans_8x8_altivec(b, 1, 1);
|
|
ff_put_signed_pixels_clamped_c(b, dest, stride);
|
|
}
|
|
|
|
static void vc1_inv_trans_8x8_put_altivec(uint8_t *dest, int stride, DCTELEM *b)
|
|
{
|
|
vc1_inv_trans_8x8_altivec(b, 0, 0);
|
|
ff_put_pixels_clamped_c(b, dest, stride);
|
|
}
|
|
|
|
static void vc1_inv_trans_8x8_put_rangered_altivec(uint8_t *dest, int stride, DCTELEM *b)
|
|
{
|
|
vc1_inv_trans_8x8_altivec(b, 0, 1);
|
|
ff_put_pixels_clamped_c(b, dest, stride);
|
|
}
|
|
|
|
/** Do inverse transform on 8x4 part of block
|
|
*/
|
|
static void vc1_inv_trans_8x4_altivec(uint8_t *dest, int stride, DCTELEM *block)
|
|
{
|
|
vector signed short src0, src1, src2, src3, src4, src5, src6, src7;
|
|
vector signed int s0, s1, s2, s3, s4, s5, s6, s7;
|
|
vector signed int s8, s9, sA, sB, sC, sD, sE, sF;
|
|
vector signed int t0, t1, t2, t3, t4, t5, t6, t7;
|
|
const vector signed int vec_64 = vec_sl(vec_splat_s32(4), vec_splat_u32(4));
|
|
const vector unsigned int vec_7 = vec_splat_u32(7);
|
|
const vector unsigned int vec_5 = vec_splat_u32(5);
|
|
const vector unsigned int vec_4 = vec_splat_u32(4);
|
|
const vector signed int vec_4s = vec_splat_s32(4);
|
|
const vector unsigned int vec_3 = vec_splat_u32(3);
|
|
const vector unsigned int vec_2 = vec_splat_u32(2);
|
|
const vector unsigned int vec_1 = vec_splat_u32(1);
|
|
vector unsigned char tmp;
|
|
vector signed short tmp2, tmp3;
|
|
vector unsigned char perm0, perm1, p0, p1, p;
|
|
|
|
src0 = vec_ld( 0, block);
|
|
src1 = vec_ld( 16, block);
|
|
src2 = vec_ld( 32, block);
|
|
src3 = vec_ld( 48, block);
|
|
src4 = vec_ld( 64, block);
|
|
src5 = vec_ld( 80, block);
|
|
src6 = vec_ld( 96, block);
|
|
src7 = vec_ld(112, block);
|
|
|
|
TRANSPOSE8(src0, src1, src2, src3, src4, src5, src6, src7);
|
|
s0 = vec_unpackl(src0);
|
|
s1 = vec_unpackl(src1);
|
|
s2 = vec_unpackl(src2);
|
|
s3 = vec_unpackl(src3);
|
|
s4 = vec_unpackl(src4);
|
|
s5 = vec_unpackl(src5);
|
|
s6 = vec_unpackl(src6);
|
|
s7 = vec_unpackl(src7);
|
|
s8 = vec_unpackh(src0);
|
|
s9 = vec_unpackh(src1);
|
|
sA = vec_unpackh(src2);
|
|
sB = vec_unpackh(src3);
|
|
sC = vec_unpackh(src4);
|
|
sD = vec_unpackh(src5);
|
|
sE = vec_unpackh(src6);
|
|
sF = vec_unpackh(src7);
|
|
STEP8(s0, s1, s2, s3, s4, s5, s6, s7, vec_4s);
|
|
SHIFT_HOR8(s0, s1, s2, s3, s4, s5, s6, s7);
|
|
STEP8(s8, s9, sA, sB, sC, sD, sE, sF, vec_4s);
|
|
SHIFT_HOR8(s8, s9, sA, sB, sC, sD, sE, sF);
|
|
src0 = vec_pack(s8, s0);
|
|
src1 = vec_pack(s9, s1);
|
|
src2 = vec_pack(sA, s2);
|
|
src3 = vec_pack(sB, s3);
|
|
src4 = vec_pack(sC, s4);
|
|
src5 = vec_pack(sD, s5);
|
|
src6 = vec_pack(sE, s6);
|
|
src7 = vec_pack(sF, s7);
|
|
TRANSPOSE8(src0, src1, src2, src3, src4, src5, src6, src7);
|
|
|
|
s0 = vec_unpackh(src0);
|
|
s1 = vec_unpackh(src1);
|
|
s2 = vec_unpackh(src2);
|
|
s3 = vec_unpackh(src3);
|
|
s8 = vec_unpackl(src0);
|
|
s9 = vec_unpackl(src1);
|
|
sA = vec_unpackl(src2);
|
|
sB = vec_unpackl(src3);
|
|
STEP4(s0, s1, s2, s3, vec_64);
|
|
SHIFT_VERT4(s0, s1, s2, s3);
|
|
STEP4(s8, s9, sA, sB, vec_64);
|
|
SHIFT_VERT4(s8, s9, sA, sB);
|
|
src0 = vec_pack(s0, s8);
|
|
src1 = vec_pack(s1, s9);
|
|
src2 = vec_pack(s2, sA);
|
|
src3 = vec_pack(s3, sB);
|
|
|
|
p0 = vec_lvsl (0, dest);
|
|
p1 = vec_lvsl (stride, dest);
|
|
p = vec_splat_u8 (-1);
|
|
perm0 = vec_mergeh (p, p0);
|
|
perm1 = vec_mergeh (p, p1);
|
|
|
|
#define ADD(dest,src,perm) \
|
|
/* *(uint64_t *)&tmp = *(uint64_t *)dest; */ \
|
|
tmp = vec_ld (0, dest); \
|
|
tmp2 = (vector signed short)vec_perm (tmp, vec_splat_u8(0), perm); \
|
|
tmp3 = vec_adds (tmp2, src); \
|
|
tmp = vec_packsu (tmp3, tmp3); \
|
|
vec_ste ((vector unsigned int)tmp, 0, (unsigned int *)dest); \
|
|
vec_ste ((vector unsigned int)tmp, 4, (unsigned int *)dest);
|
|
|
|
ADD (dest, src0, perm0) dest += stride;
|
|
ADD (dest, src1, perm1) dest += stride;
|
|
ADD (dest, src2, perm0) dest += stride;
|
|
ADD (dest, src3, perm1)
|
|
}
|
|
|
|
#define PUT_OP_U8_ALTIVEC(d, s, dst) d = s
|
|
#define AVG_OP_U8_ALTIVEC(d, s, dst) d = vec_avg(dst, s)
|
|
|
|
#define OP_U8_ALTIVEC PUT_OP_U8_ALTIVEC
|
|
#define PREFIX_no_rnd_vc1_chroma_mc8_altivec put_no_rnd_vc1_chroma_mc8_altivec
|
|
#include "h264_template_altivec.c"
|
|
#undef OP_U8_ALTIVEC
|
|
#undef PREFIX_no_rnd_vc1_chroma_mc8_altivec
|
|
|
|
#define OP_U8_ALTIVEC AVG_OP_U8_ALTIVEC
|
|
#define PREFIX_no_rnd_vc1_chroma_mc8_altivec avg_no_rnd_vc1_chroma_mc8_altivec
|
|
#include "h264_template_altivec.c"
|
|
#undef OP_U8_ALTIVEC
|
|
#undef PREFIX_no_rnd_vc1_chroma_mc8_altivec
|
|
|
|
void ff_vc1dsp_init_altivec(VC1DSPContext* dsp)
|
|
{
|
|
if (!(av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC))
|
|
return;
|
|
|
|
dsp->vc1_inv_trans_8x8_add = vc1_inv_trans_8x8_add_altivec;
|
|
dsp->vc1_inv_trans_8x8_put_signed[0] = vc1_inv_trans_8x8_put_signed_altivec;
|
|
dsp->vc1_inv_trans_8x8_put_signed[1] = vc1_inv_trans_8x8_put_signed_rangered_altivec;
|
|
dsp->vc1_inv_trans_8x8_put[0] = vc1_inv_trans_8x8_put_altivec;
|
|
dsp->vc1_inv_trans_8x8_put[1] = vc1_inv_trans_8x8_put_rangered_altivec;
|
|
dsp->vc1_inv_trans_8x4 = vc1_inv_trans_8x4_altivec;
|
|
dsp->put_no_rnd_vc1_chroma_pixels_tab[0] = put_no_rnd_vc1_chroma_mc8_altivec;
|
|
dsp->avg_no_rnd_vc1_chroma_pixels_tab[0] = avg_no_rnd_vc1_chroma_mc8_altivec;
|
|
}
|