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FFmpeg/libavcodec/ppc/h264_altivec.c
Oskar Arvidsson 8dbe585641 Adds 8-, 9- and 10-bit versions of some of the functions used by the h264 decoder. 
This patch lets e.g. dsputil_init chose dsp functions with respect to
the bit depth to decode. The naming scheme of bit depth dependent
functions is <base name>_<bit depth>[_<prefix>] (i.e. the old
clear_blocks_c is now named clear_blocks_8_c).

Note: Some of the functions for high bit depth is not dependent on the
bit depth, but only on the pixel size. This leaves some room for
optimizing binary size.

Preparatory patch for high bit depth h264 decoding support.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-04-10 22:33:42 +02:00

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/*
* Copyright (c) 2004 Romain Dolbeau <romain@dolbeau.org>
*
* 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/cpu.h"
#include "libavcodec/dsputil.h"
#include "libavcodec/h264data.h"
#include "libavcodec/h264dsp.h"
#include "dsputil_altivec.h"
#include "util_altivec.h"
#include "types_altivec.h"
#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_h264_chroma_mc8_altivec put_h264_chroma_mc8_altivec
#define PREFIX_h264_chroma_mc8_num altivec_put_h264_chroma_mc8_num
#define PREFIX_h264_qpel16_h_lowpass_altivec put_h264_qpel16_h_lowpass_altivec
#define PREFIX_h264_qpel16_h_lowpass_num altivec_put_h264_qpel16_h_lowpass_num
#define PREFIX_h264_qpel16_v_lowpass_altivec put_h264_qpel16_v_lowpass_altivec
#define PREFIX_h264_qpel16_v_lowpass_num altivec_put_h264_qpel16_v_lowpass_num
#define PREFIX_h264_qpel16_hv_lowpass_altivec put_h264_qpel16_hv_lowpass_altivec
#define PREFIX_h264_qpel16_hv_lowpass_num altivec_put_h264_qpel16_hv_lowpass_num
#include "h264_template_altivec.c"
#undef OP_U8_ALTIVEC
#undef PREFIX_h264_chroma_mc8_altivec
#undef PREFIX_h264_chroma_mc8_num
#undef PREFIX_h264_qpel16_h_lowpass_altivec
#undef PREFIX_h264_qpel16_h_lowpass_num
#undef PREFIX_h264_qpel16_v_lowpass_altivec
#undef PREFIX_h264_qpel16_v_lowpass_num
#undef PREFIX_h264_qpel16_hv_lowpass_altivec
#undef PREFIX_h264_qpel16_hv_lowpass_num
#define OP_U8_ALTIVEC AVG_OP_U8_ALTIVEC
#define PREFIX_h264_chroma_mc8_altivec avg_h264_chroma_mc8_altivec
#define PREFIX_h264_chroma_mc8_num altivec_avg_h264_chroma_mc8_num
#define PREFIX_h264_qpel16_h_lowpass_altivec avg_h264_qpel16_h_lowpass_altivec
#define PREFIX_h264_qpel16_h_lowpass_num altivec_avg_h264_qpel16_h_lowpass_num
#define PREFIX_h264_qpel16_v_lowpass_altivec avg_h264_qpel16_v_lowpass_altivec
#define PREFIX_h264_qpel16_v_lowpass_num altivec_avg_h264_qpel16_v_lowpass_num
#define PREFIX_h264_qpel16_hv_lowpass_altivec avg_h264_qpel16_hv_lowpass_altivec
#define PREFIX_h264_qpel16_hv_lowpass_num altivec_avg_h264_qpel16_hv_lowpass_num
#include "h264_template_altivec.c"
#undef OP_U8_ALTIVEC
#undef PREFIX_h264_chroma_mc8_altivec
#undef PREFIX_h264_chroma_mc8_num
#undef PREFIX_h264_qpel16_h_lowpass_altivec
#undef PREFIX_h264_qpel16_h_lowpass_num
#undef PREFIX_h264_qpel16_v_lowpass_altivec
#undef PREFIX_h264_qpel16_v_lowpass_num
#undef PREFIX_h264_qpel16_hv_lowpass_altivec
#undef PREFIX_h264_qpel16_hv_lowpass_num
#define H264_MC(OPNAME, SIZE, CODETYPE) \
static void OPNAME ## h264_qpel ## SIZE ## _mc00_ ## CODETYPE (uint8_t *dst, uint8_t *src, int stride){\
OPNAME ## pixels ## SIZE ## _ ## CODETYPE(dst, src, stride, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc10_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){ \
DECLARE_ALIGNED(16, uint8_t, half)[SIZE*SIZE];\
put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src, half, stride, stride, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc20_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
OPNAME ## h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(dst, src, stride, stride);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc30_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
DECLARE_ALIGNED(16, uint8_t, half)[SIZE*SIZE];\
put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src+1, half, stride, stride, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc01_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
DECLARE_ALIGNED(16, uint8_t, half)[SIZE*SIZE];\
put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src, half, stride, stride, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc02_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
OPNAME ## h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(dst, src, stride, stride);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc03_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
DECLARE_ALIGNED(16, uint8_t, half)[SIZE*SIZE];\
put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src+stride, half, stride, stride, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc11_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src, SIZE, stride);\
put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src, SIZE, stride);\
OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc31_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src, SIZE, stride);\
put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src+1, SIZE, stride);\
OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc13_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src + stride, SIZE, stride);\
put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src, SIZE, stride);\
OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc33_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src + stride, SIZE, stride);\
put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src+1, SIZE, stride);\
OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc22_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
DECLARE_ALIGNED(16, int16_t, tmp)[SIZE*(SIZE+8)];\
OPNAME ## h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(dst, tmp, src, stride, SIZE, stride);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc21_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
DECLARE_ALIGNED(16, uint8_t, halfHV)[SIZE*SIZE];\
DECLARE_ALIGNED(16, int16_t, tmp)[SIZE*(SIZE+8)];\
put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src, SIZE, stride);\
put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfHV, stride, SIZE, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc23_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
DECLARE_ALIGNED(16, uint8_t, halfHV)[SIZE*SIZE];\
DECLARE_ALIGNED(16, int16_t, tmp)[SIZE*(SIZE+8)];\
put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src + stride, SIZE, stride);\
put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfHV, stride, SIZE, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc12_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
DECLARE_ALIGNED(16, uint8_t, halfHV)[SIZE*SIZE];\
DECLARE_ALIGNED(16, int16_t, tmp)[SIZE*(SIZE+8)];\
put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src, SIZE, stride);\
put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfV, halfHV, stride, SIZE, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc32_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
DECLARE_ALIGNED(16, uint8_t, halfHV)[SIZE*SIZE];\
DECLARE_ALIGNED(16, int16_t, tmp)[SIZE*(SIZE+8)];\
put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src+1, SIZE, stride);\
put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfV, halfHV, stride, SIZE, SIZE);\
}\
static inline void put_pixels16_l2_altivec( uint8_t * dst, const uint8_t * src1,
const uint8_t * src2, int dst_stride,
int src_stride1, int h)
{
int i;
vec_u8 a, b, d, tmp1, tmp2, mask, mask_, edges, align;
mask_ = vec_lvsl(0, src2);
for (i = 0; i < h; i++) {
tmp1 = vec_ld(i * src_stride1, src1);
mask = vec_lvsl(i * src_stride1, src1);
tmp2 = vec_ld(i * src_stride1 + 15, src1);
a = vec_perm(tmp1, tmp2, mask);
tmp1 = vec_ld(i * 16, src2);
tmp2 = vec_ld(i * 16 + 15, src2);
b = vec_perm(tmp1, tmp2, mask_);
tmp1 = vec_ld(0, dst);
mask = vec_lvsl(0, dst);
tmp2 = vec_ld(15, dst);
d = vec_avg(a, b);
edges = vec_perm(tmp2, tmp1, mask);
align = vec_lvsr(0, dst);
tmp2 = vec_perm(d, edges, align);
tmp1 = vec_perm(edges, d, align);
vec_st(tmp2, 15, dst);
vec_st(tmp1, 0 , dst);
dst += dst_stride;
}
}
static inline void avg_pixels16_l2_altivec( uint8_t * dst, const uint8_t * src1,
const uint8_t * src2, int dst_stride,
int src_stride1, int h)
{
int i;
vec_u8 a, b, d, tmp1, tmp2, mask, mask_, edges, align;
mask_ = vec_lvsl(0, src2);
for (i = 0; i < h; i++) {
tmp1 = vec_ld(i * src_stride1, src1);
mask = vec_lvsl(i * src_stride1, src1);
tmp2 = vec_ld(i * src_stride1 + 15, src1);
a = vec_perm(tmp1, tmp2, mask);
tmp1 = vec_ld(i * 16, src2);
tmp2 = vec_ld(i * 16 + 15, src2);
b = vec_perm(tmp1, tmp2, mask_);
tmp1 = vec_ld(0, dst);
mask = vec_lvsl(0, dst);
tmp2 = vec_ld(15, dst);
d = vec_avg(vec_perm(tmp1, tmp2, mask), vec_avg(a, b));
edges = vec_perm(tmp2, tmp1, mask);
align = vec_lvsr(0, dst);
tmp2 = vec_perm(d, edges, align);
tmp1 = vec_perm(edges, d, align);
vec_st(tmp2, 15, dst);
vec_st(tmp1, 0 , dst);
dst += dst_stride;
}
}
/* Implemented but could be faster
#define put_pixels16_l2_altivec(d,s1,s2,ds,s1s,h) put_pixels16_l2(d,s1,s2,ds,s1s,16,h)
#define avg_pixels16_l2_altivec(d,s1,s2,ds,s1s,h) avg_pixels16_l2(d,s1,s2,ds,s1s,16,h)
*/
H264_MC(put_, 16, altivec)
H264_MC(avg_, 16, altivec)
/****************************************************************************
* IDCT transform:
****************************************************************************/
#define VEC_1D_DCT(vb0,vb1,vb2,vb3,va0,va1,va2,va3) \
/* 1st stage */ \
vz0 = vec_add(vb0,vb2); /* temp[0] = Y[0] + Y[2] */ \
vz1 = vec_sub(vb0,vb2); /* temp[1] = Y[0] - Y[2] */ \
vz2 = vec_sra(vb1,vec_splat_u16(1)); \
vz2 = vec_sub(vz2,vb3); /* temp[2] = Y[1].1/2 - Y[3] */ \
vz3 = vec_sra(vb3,vec_splat_u16(1)); \
vz3 = vec_add(vb1,vz3); /* temp[3] = Y[1] + Y[3].1/2 */ \
/* 2nd stage: output */ \
va0 = vec_add(vz0,vz3); /* x[0] = temp[0] + temp[3] */ \
va1 = vec_add(vz1,vz2); /* x[1] = temp[1] + temp[2] */ \
va2 = vec_sub(vz1,vz2); /* x[2] = temp[1] - temp[2] */ \
va3 = vec_sub(vz0,vz3) /* x[3] = temp[0] - temp[3] */
#define VEC_TRANSPOSE_4(a0,a1,a2,a3,b0,b1,b2,b3) \
b0 = vec_mergeh( a0, a0 ); \
b1 = vec_mergeh( a1, a0 ); \
b2 = vec_mergeh( a2, a0 ); \
b3 = vec_mergeh( a3, a0 ); \
a0 = vec_mergeh( b0, b2 ); \
a1 = vec_mergel( b0, b2 ); \
a2 = vec_mergeh( b1, b3 ); \
a3 = vec_mergel( b1, b3 ); \
b0 = vec_mergeh( a0, a2 ); \
b1 = vec_mergel( a0, a2 ); \
b2 = vec_mergeh( a1, a3 ); \
b3 = vec_mergel( a1, a3 )
#define VEC_LOAD_U8_ADD_S16_STORE_U8(va) \
vdst_orig = vec_ld(0, dst); \
vdst = vec_perm(vdst_orig, zero_u8v, vdst_mask); \
vdst_ss = (vec_s16) vec_mergeh(zero_u8v, vdst); \
va = vec_add(va, vdst_ss); \
va_u8 = vec_packsu(va, zero_s16v); \
va_u32 = vec_splat((vec_u32)va_u8, 0); \
vec_ste(va_u32, element, (uint32_t*)dst);
static void ff_h264_idct_add_altivec(uint8_t *dst, DCTELEM *block, int stride)
{
vec_s16 va0, va1, va2, va3;
vec_s16 vz0, vz1, vz2, vz3;
vec_s16 vtmp0, vtmp1, vtmp2, vtmp3;
vec_u8 va_u8;
vec_u32 va_u32;
vec_s16 vdst_ss;
const vec_u16 v6us = vec_splat_u16(6);
vec_u8 vdst, vdst_orig;
vec_u8 vdst_mask = vec_lvsl(0, dst);
int element = ((unsigned long)dst & 0xf) >> 2;
LOAD_ZERO;
block[0] += 32; /* add 32 as a DC-level for rounding */
vtmp0 = vec_ld(0,block);
vtmp1 = vec_sld(vtmp0, vtmp0, 8);
vtmp2 = vec_ld(16,block);
vtmp3 = vec_sld(vtmp2, vtmp2, 8);
VEC_1D_DCT(vtmp0,vtmp1,vtmp2,vtmp3,va0,va1,va2,va3);
VEC_TRANSPOSE_4(va0,va1,va2,va3,vtmp0,vtmp1,vtmp2,vtmp3);
VEC_1D_DCT(vtmp0,vtmp1,vtmp2,vtmp3,va0,va1,va2,va3);
va0 = vec_sra(va0,v6us);
va1 = vec_sra(va1,v6us);
va2 = vec_sra(va2,v6us);
va3 = vec_sra(va3,v6us);
VEC_LOAD_U8_ADD_S16_STORE_U8(va0);
dst += stride;
VEC_LOAD_U8_ADD_S16_STORE_U8(va1);
dst += stride;
VEC_LOAD_U8_ADD_S16_STORE_U8(va2);
dst += stride;
VEC_LOAD_U8_ADD_S16_STORE_U8(va3);
}
#define IDCT8_1D_ALTIVEC(s0, s1, s2, s3, s4, s5, s6, s7, d0, d1, d2, d3, d4, d5, d6, d7) {\
/* a0 = SRC(0) + SRC(4); */ \
vec_s16 a0v = vec_add(s0, s4); \
/* a2 = SRC(0) - SRC(4); */ \
vec_s16 a2v = vec_sub(s0, s4); \
/* a4 = (SRC(2)>>1) - SRC(6); */ \
vec_s16 a4v = vec_sub(vec_sra(s2, onev), s6); \
/* a6 = (SRC(6)>>1) + SRC(2); */ \
vec_s16 a6v = vec_add(vec_sra(s6, onev), s2); \
/* b0 = a0 + a6; */ \
vec_s16 b0v = vec_add(a0v, a6v); \
/* b2 = a2 + a4; */ \
vec_s16 b2v = vec_add(a2v, a4v); \
/* b4 = a2 - a4; */ \
vec_s16 b4v = vec_sub(a2v, a4v); \
/* b6 = a0 - a6; */ \
vec_s16 b6v = vec_sub(a0v, a6v); \
/* a1 = SRC(5) - SRC(3) - SRC(7) - (SRC(7)>>1); */ \
/* a1 = (SRC(5)-SRC(3)) - (SRC(7) + (SRC(7)>>1)); */ \
vec_s16 a1v = vec_sub( vec_sub(s5, s3), vec_add(s7, vec_sra(s7, onev)) ); \
/* a3 = SRC(7) + SRC(1) - SRC(3) - (SRC(3)>>1); */ \
/* a3 = (SRC(7)+SRC(1)) - (SRC(3) + (SRC(3)>>1)); */ \
vec_s16 a3v = vec_sub( vec_add(s7, s1), vec_add(s3, vec_sra(s3, onev)) );\
/* a5 = SRC(7) - SRC(1) + SRC(5) + (SRC(5)>>1); */ \
/* a5 = (SRC(7)-SRC(1)) + SRC(5) + (SRC(5)>>1); */ \
vec_s16 a5v = vec_add( vec_sub(s7, s1), vec_add(s5, vec_sra(s5, onev)) );\
/* a7 = SRC(5)+SRC(3) + SRC(1) + (SRC(1)>>1); */ \
vec_s16 a7v = vec_add( vec_add(s5, s3), vec_add(s1, vec_sra(s1, onev)) );\
/* b1 = (a7>>2) + a1; */ \
vec_s16 b1v = vec_add( vec_sra(a7v, twov), a1v); \
/* b3 = a3 + (a5>>2); */ \
vec_s16 b3v = vec_add(a3v, vec_sra(a5v, twov)); \
/* b5 = (a3>>2) - a5; */ \
vec_s16 b5v = vec_sub( vec_sra(a3v, twov), a5v); \
/* b7 = a7 - (a1>>2); */ \
vec_s16 b7v = vec_sub( a7v, vec_sra(a1v, twov)); \
/* DST(0, b0 + b7); */ \
d0 = vec_add(b0v, b7v); \
/* DST(1, b2 + b5); */ \
d1 = vec_add(b2v, b5v); \
/* DST(2, b4 + b3); */ \
d2 = vec_add(b4v, b3v); \
/* DST(3, b6 + b1); */ \
d3 = vec_add(b6v, b1v); \
/* DST(4, b6 - b1); */ \
d4 = vec_sub(b6v, b1v); \
/* DST(5, b4 - b3); */ \
d5 = vec_sub(b4v, b3v); \
/* DST(6, b2 - b5); */ \
d6 = vec_sub(b2v, b5v); \
/* DST(7, b0 - b7); */ \
d7 = vec_sub(b0v, b7v); \
}
#define ALTIVEC_STORE_SUM_CLIP(dest, idctv, perm_ldv, perm_stv, sel) { \
/* unaligned load */ \
vec_u8 hv = vec_ld( 0, dest ); \
vec_u8 lv = vec_ld( 7, dest ); \
vec_u8 dstv = vec_perm( hv, lv, (vec_u8)perm_ldv ); \
vec_s16 idct_sh6 = vec_sra(idctv, sixv); \
vec_u16 dst16 = (vec_u16)vec_mergeh(zero_u8v, dstv); \
vec_s16 idstsum = vec_adds(idct_sh6, (vec_s16)dst16); \
vec_u8 idstsum8 = vec_packsu(zero_s16v, idstsum); \
vec_u8 edgehv; \
/* unaligned store */ \
vec_u8 bodyv = vec_perm( idstsum8, idstsum8, perm_stv );\
vec_u8 edgelv = vec_perm( sel, zero_u8v, perm_stv ); \
lv = vec_sel( lv, bodyv, edgelv ); \
vec_st( lv, 7, dest ); \
hv = vec_ld( 0, dest ); \
edgehv = vec_perm( zero_u8v, sel, perm_stv ); \
hv = vec_sel( hv, bodyv, edgehv ); \
vec_st( hv, 0, dest ); \
}
static void ff_h264_idct8_add_altivec( uint8_t *dst, DCTELEM *dct, int stride ) {
vec_s16 s0, s1, s2, s3, s4, s5, s6, s7;
vec_s16 d0, d1, d2, d3, d4, d5, d6, d7;
vec_s16 idct0, idct1, idct2, idct3, idct4, idct5, idct6, idct7;
vec_u8 perm_ldv = vec_lvsl(0, dst);
vec_u8 perm_stv = vec_lvsr(8, dst);
const vec_u16 onev = vec_splat_u16(1);
const vec_u16 twov = vec_splat_u16(2);
const vec_u16 sixv = vec_splat_u16(6);
const vec_u8 sel = (vec_u8) {0,0,0,0,0,0,0,0,-1,-1,-1,-1,-1,-1,-1,-1};
LOAD_ZERO;
dct[0] += 32; // rounding for the >>6 at the end
s0 = vec_ld(0x00, (int16_t*)dct);
s1 = vec_ld(0x10, (int16_t*)dct);
s2 = vec_ld(0x20, (int16_t*)dct);
s3 = vec_ld(0x30, (int16_t*)dct);
s4 = vec_ld(0x40, (int16_t*)dct);
s5 = vec_ld(0x50, (int16_t*)dct);
s6 = vec_ld(0x60, (int16_t*)dct);
s7 = vec_ld(0x70, (int16_t*)dct);
IDCT8_1D_ALTIVEC(s0, s1, s2, s3, s4, s5, s6, s7,
d0, d1, d2, d3, d4, d5, d6, d7);
TRANSPOSE8( d0, d1, d2, d3, d4, d5, d6, d7 );
IDCT8_1D_ALTIVEC(d0, d1, d2, d3, d4, d5, d6, d7,
idct0, idct1, idct2, idct3, idct4, idct5, idct6, idct7);
ALTIVEC_STORE_SUM_CLIP(&dst[0*stride], idct0, perm_ldv, perm_stv, sel);
ALTIVEC_STORE_SUM_CLIP(&dst[1*stride], idct1, perm_ldv, perm_stv, sel);
ALTIVEC_STORE_SUM_CLIP(&dst[2*stride], idct2, perm_ldv, perm_stv, sel);
ALTIVEC_STORE_SUM_CLIP(&dst[3*stride], idct3, perm_ldv, perm_stv, sel);
ALTIVEC_STORE_SUM_CLIP(&dst[4*stride], idct4, perm_ldv, perm_stv, sel);
ALTIVEC_STORE_SUM_CLIP(&dst[5*stride], idct5, perm_ldv, perm_stv, sel);
ALTIVEC_STORE_SUM_CLIP(&dst[6*stride], idct6, perm_ldv, perm_stv, sel);
ALTIVEC_STORE_SUM_CLIP(&dst[7*stride], idct7, perm_ldv, perm_stv, sel);
}
static av_always_inline void h264_idct_dc_add_internal(uint8_t *dst, DCTELEM *block, int stride, int size)
{
vec_s16 dc16;
vec_u8 dcplus, dcminus, v0, v1, v2, v3, aligner;
LOAD_ZERO;
DECLARE_ALIGNED(16, int, dc);
int i;
dc = (block[0] + 32) >> 6;
dc16 = vec_splat((vec_s16) vec_lde(0, &dc), 1);
if (size == 4)
dc16 = vec_sld(dc16, zero_s16v, 8);
dcplus = vec_packsu(dc16, zero_s16v);
dcminus = vec_packsu(vec_sub(zero_s16v, dc16), zero_s16v);
aligner = vec_lvsr(0, dst);
dcplus = vec_perm(dcplus, dcplus, aligner);
dcminus = vec_perm(dcminus, dcminus, aligner);
for (i = 0; i < size; i += 4) {
v0 = vec_ld(0, dst+0*stride);
v1 = vec_ld(0, dst+1*stride);
v2 = vec_ld(0, dst+2*stride);
v3 = vec_ld(0, dst+3*stride);
v0 = vec_adds(v0, dcplus);
v1 = vec_adds(v1, dcplus);
v2 = vec_adds(v2, dcplus);
v3 = vec_adds(v3, dcplus);
v0 = vec_subs(v0, dcminus);
v1 = vec_subs(v1, dcminus);
v2 = vec_subs(v2, dcminus);
v3 = vec_subs(v3, dcminus);
vec_st(v0, 0, dst+0*stride);
vec_st(v1, 0, dst+1*stride);
vec_st(v2, 0, dst+2*stride);
vec_st(v3, 0, dst+3*stride);
dst += 4*stride;
}
}
static void h264_idct_dc_add_altivec(uint8_t *dst, DCTELEM *block, int stride)
{
h264_idct_dc_add_internal(dst, block, stride, 4);
}
static void ff_h264_idct8_dc_add_altivec(uint8_t *dst, DCTELEM *block, int stride)
{
h264_idct_dc_add_internal(dst, block, stride, 8);
}
static void ff_h264_idct_add16_altivec(uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]){
int i;
for(i=0; i<16; i++){
int nnz = nnzc[ scan8[i] ];
if(nnz){
if(nnz==1 && block[i*16]) h264_idct_dc_add_altivec(dst + block_offset[i], block + i*16, stride);
else ff_h264_idct_add_altivec(dst + block_offset[i], block + i*16, stride);
}
}
}
static void ff_h264_idct_add16intra_altivec(uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]){
int i;
for(i=0; i<16; i++){
if(nnzc[ scan8[i] ]) ff_h264_idct_add_altivec(dst + block_offset[i], block + i*16, stride);
else if(block[i*16]) h264_idct_dc_add_altivec(dst + block_offset[i], block + i*16, stride);
}
}
static void ff_h264_idct8_add4_altivec(uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]){
int i;
for(i=0; i<16; i+=4){
int nnz = nnzc[ scan8[i] ];
if(nnz){
if(nnz==1 && block[i*16]) ff_h264_idct8_dc_add_altivec(dst + block_offset[i], block + i*16, stride);
else ff_h264_idct8_add_altivec (dst + block_offset[i], block + i*16, stride);
}
}
}
static void ff_h264_idct_add8_altivec(uint8_t **dest, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]){
int i;
for(i=16; i<16+8; i++){
if(nnzc[ scan8[i] ])
ff_h264_idct_add_altivec(dest[(i&4)>>2] + block_offset[i], block + i*16, stride);
else if(block[i*16])
h264_idct_dc_add_altivec(dest[(i&4)>>2] + block_offset[i], block + i*16, stride);
}
}
#define transpose4x16(r0, r1, r2, r3) { \
register vec_u8 r4; \
register vec_u8 r5; \
register vec_u8 r6; \
register vec_u8 r7; \
\
r4 = vec_mergeh(r0, r2); /*0, 2 set 0*/ \
r5 = vec_mergel(r0, r2); /*0, 2 set 1*/ \
r6 = vec_mergeh(r1, r3); /*1, 3 set 0*/ \
r7 = vec_mergel(r1, r3); /*1, 3 set 1*/ \
\
r0 = vec_mergeh(r4, r6); /*all set 0*/ \
r1 = vec_mergel(r4, r6); /*all set 1*/ \
r2 = vec_mergeh(r5, r7); /*all set 2*/ \
r3 = vec_mergel(r5, r7); /*all set 3*/ \
}
static inline void write16x4(uint8_t *dst, int dst_stride,
register vec_u8 r0, register vec_u8 r1,
register vec_u8 r2, register vec_u8 r3) {
DECLARE_ALIGNED(16, unsigned char, result)[64];
uint32_t *src_int = (uint32_t *)result, *dst_int = (uint32_t *)dst;
int int_dst_stride = dst_stride/4;
vec_st(r0, 0, result);
vec_st(r1, 16, result);
vec_st(r2, 32, result);
vec_st(r3, 48, result);
/* FIXME: there has to be a better way!!!! */
*dst_int = *src_int;
*(dst_int+ int_dst_stride) = *(src_int + 1);
*(dst_int+ 2*int_dst_stride) = *(src_int + 2);
*(dst_int+ 3*int_dst_stride) = *(src_int + 3);
*(dst_int+ 4*int_dst_stride) = *(src_int + 4);
*(dst_int+ 5*int_dst_stride) = *(src_int + 5);
*(dst_int+ 6*int_dst_stride) = *(src_int + 6);
*(dst_int+ 7*int_dst_stride) = *(src_int + 7);
*(dst_int+ 8*int_dst_stride) = *(src_int + 8);
*(dst_int+ 9*int_dst_stride) = *(src_int + 9);
*(dst_int+10*int_dst_stride) = *(src_int + 10);
*(dst_int+11*int_dst_stride) = *(src_int + 11);
*(dst_int+12*int_dst_stride) = *(src_int + 12);
*(dst_int+13*int_dst_stride) = *(src_int + 13);
*(dst_int+14*int_dst_stride) = *(src_int + 14);
*(dst_int+15*int_dst_stride) = *(src_int + 15);
}
/** \brief performs a 6x16 transpose of data in src, and stores it to dst
\todo FIXME: see if we can't spare some vec_lvsl() by them factorizing
out of unaligned_load() */
#define readAndTranspose16x6(src, src_stride, r8, r9, r10, r11, r12, r13) {\
register vec_u8 r0 = unaligned_load(0, src); \
register vec_u8 r1 = unaligned_load( src_stride, src); \
register vec_u8 r2 = unaligned_load(2* src_stride, src); \
register vec_u8 r3 = unaligned_load(3* src_stride, src); \
register vec_u8 r4 = unaligned_load(4* src_stride, src); \
register vec_u8 r5 = unaligned_load(5* src_stride, src); \
register vec_u8 r6 = unaligned_load(6* src_stride, src); \
register vec_u8 r7 = unaligned_load(7* src_stride, src); \
register vec_u8 r14 = unaligned_load(14*src_stride, src); \
register vec_u8 r15 = unaligned_load(15*src_stride, src); \
\
r8 = unaligned_load( 8*src_stride, src); \
r9 = unaligned_load( 9*src_stride, src); \
r10 = unaligned_load(10*src_stride, src); \
r11 = unaligned_load(11*src_stride, src); \
r12 = unaligned_load(12*src_stride, src); \
r13 = unaligned_load(13*src_stride, src); \
\
/*Merge first pairs*/ \
r0 = vec_mergeh(r0, r8); /*0, 8*/ \
r1 = vec_mergeh(r1, r9); /*1, 9*/ \
r2 = vec_mergeh(r2, r10); /*2,10*/ \
r3 = vec_mergeh(r3, r11); /*3,11*/ \
r4 = vec_mergeh(r4, r12); /*4,12*/ \
r5 = vec_mergeh(r5, r13); /*5,13*/ \
r6 = vec_mergeh(r6, r14); /*6,14*/ \
r7 = vec_mergeh(r7, r15); /*7,15*/ \
\
/*Merge second pairs*/ \
r8 = vec_mergeh(r0, r4); /*0,4, 8,12 set 0*/ \
r9 = vec_mergel(r0, r4); /*0,4, 8,12 set 1*/ \
r10 = vec_mergeh(r1, r5); /*1,5, 9,13 set 0*/ \
r11 = vec_mergel(r1, r5); /*1,5, 9,13 set 1*/ \
r12 = vec_mergeh(r2, r6); /*2,6,10,14 set 0*/ \
r13 = vec_mergel(r2, r6); /*2,6,10,14 set 1*/ \
r14 = vec_mergeh(r3, r7); /*3,7,11,15 set 0*/ \
r15 = vec_mergel(r3, r7); /*3,7,11,15 set 1*/ \
\
/*Third merge*/ \
r0 = vec_mergeh(r8, r12); /*0,2,4,6,8,10,12,14 set 0*/ \
r1 = vec_mergel(r8, r12); /*0,2,4,6,8,10,12,14 set 1*/ \
r2 = vec_mergeh(r9, r13); /*0,2,4,6,8,10,12,14 set 2*/ \
r4 = vec_mergeh(r10, r14); /*1,3,5,7,9,11,13,15 set 0*/ \
r5 = vec_mergel(r10, r14); /*1,3,5,7,9,11,13,15 set 1*/ \
r6 = vec_mergeh(r11, r15); /*1,3,5,7,9,11,13,15 set 2*/ \
/* Don't need to compute 3 and 7*/ \
\
/*Final merge*/ \
r8 = vec_mergeh(r0, r4); /*all set 0*/ \
r9 = vec_mergel(r0, r4); /*all set 1*/ \
r10 = vec_mergeh(r1, r5); /*all set 2*/ \
r11 = vec_mergel(r1, r5); /*all set 3*/ \
r12 = vec_mergeh(r2, r6); /*all set 4*/ \
r13 = vec_mergel(r2, r6); /*all set 5*/ \
/* Don't need to compute 14 and 15*/ \
\
}
// out: o = |x-y| < a
static inline vec_u8 diff_lt_altivec ( register vec_u8 x,
register vec_u8 y,
register vec_u8 a) {
register vec_u8 diff = vec_subs(x, y);
register vec_u8 diffneg = vec_subs(y, x);
register vec_u8 o = vec_or(diff, diffneg); /* |x-y| */
o = (vec_u8)vec_cmplt(o, a);
return o;
}
static inline vec_u8 h264_deblock_mask ( register vec_u8 p0,
register vec_u8 p1,
register vec_u8 q0,
register vec_u8 q1,
register vec_u8 alpha,
register vec_u8 beta) {
register vec_u8 mask;
register vec_u8 tempmask;
mask = diff_lt_altivec(p0, q0, alpha);
tempmask = diff_lt_altivec(p1, p0, beta);
mask = vec_and(mask, tempmask);
tempmask = diff_lt_altivec(q1, q0, beta);
mask = vec_and(mask, tempmask);
return mask;
}
// out: newp1 = clip((p2 + ((p0 + q0 + 1) >> 1)) >> 1, p1-tc0, p1+tc0)
static inline vec_u8 h264_deblock_q1(register vec_u8 p0,
register vec_u8 p1,
register vec_u8 p2,
register vec_u8 q0,
register vec_u8 tc0) {
register vec_u8 average = vec_avg(p0, q0);
register vec_u8 temp;
register vec_u8 uncliped;
register vec_u8 ones;
register vec_u8 max;
register vec_u8 min;
register vec_u8 newp1;
temp = vec_xor(average, p2);
average = vec_avg(average, p2); /*avg(p2, avg(p0, q0)) */
ones = vec_splat_u8(1);
temp = vec_and(temp, ones); /*(p2^avg(p0, q0)) & 1 */
uncliped = vec_subs(average, temp); /*(p2+((p0+q0+1)>>1))>>1 */
max = vec_adds(p1, tc0);
min = vec_subs(p1, tc0);
newp1 = vec_max(min, uncliped);
newp1 = vec_min(max, newp1);
return newp1;
}
#define h264_deblock_p0_q0(p0, p1, q0, q1, tc0masked) { \
\
const vec_u8 A0v = vec_sl(vec_splat_u8(10), vec_splat_u8(4)); \
\
register vec_u8 pq0bit = vec_xor(p0,q0); \
register vec_u8 q1minus; \
register vec_u8 p0minus; \
register vec_u8 stage1; \
register vec_u8 stage2; \
register vec_u8 vec160; \
register vec_u8 delta; \
register vec_u8 deltaneg; \
\
q1minus = vec_nor(q1, q1); /* 255 - q1 */ \
stage1 = vec_avg(p1, q1minus); /* (p1 - q1 + 256)>>1 */ \
stage2 = vec_sr(stage1, vec_splat_u8(1)); /* (p1 - q1 + 256)>>2 = 64 + (p1 - q1) >> 2 */ \
p0minus = vec_nor(p0, p0); /* 255 - p0 */ \
stage1 = vec_avg(q0, p0minus); /* (q0 - p0 + 256)>>1 */ \
pq0bit = vec_and(pq0bit, vec_splat_u8(1)); \
stage2 = vec_avg(stage2, pq0bit); /* 32 + ((q0 - p0)&1 + (p1 - q1) >> 2 + 1) >> 1 */ \
stage2 = vec_adds(stage2, stage1); /* 160 + ((p0 - q0) + (p1 - q1) >> 2 + 1) >> 1 */ \
vec160 = vec_ld(0, &A0v); \
deltaneg = vec_subs(vec160, stage2); /* -d */ \
delta = vec_subs(stage2, vec160); /* d */ \
deltaneg = vec_min(tc0masked, deltaneg); \
delta = vec_min(tc0masked, delta); \
p0 = vec_subs(p0, deltaneg); \
q0 = vec_subs(q0, delta); \
p0 = vec_adds(p0, delta); \
q0 = vec_adds(q0, deltaneg); \
}
#define h264_loop_filter_luma_altivec(p2, p1, p0, q0, q1, q2, alpha, beta, tc0) { \
DECLARE_ALIGNED(16, unsigned char, temp)[16]; \
register vec_u8 alphavec; \
register vec_u8 betavec; \
register vec_u8 mask; \
register vec_u8 p1mask; \
register vec_u8 q1mask; \
register vector signed char tc0vec; \
register vec_u8 finaltc0; \
register vec_u8 tc0masked; \
register vec_u8 newp1; \
register vec_u8 newq1; \
\
temp[0] = alpha; \
temp[1] = beta; \
alphavec = vec_ld(0, temp); \
betavec = vec_splat(alphavec, 0x1); \
alphavec = vec_splat(alphavec, 0x0); \
mask = h264_deblock_mask(p0, p1, q0, q1, alphavec, betavec); /*if in block */ \
\
*((int *)temp) = *((int *)tc0); \
tc0vec = vec_ld(0, (signed char*)temp); \
tc0vec = vec_mergeh(tc0vec, tc0vec); \
tc0vec = vec_mergeh(tc0vec, tc0vec); \
mask = vec_and(mask, vec_cmpgt(tc0vec, vec_splat_s8(-1))); /* if tc0[i] >= 0 */ \
finaltc0 = vec_and((vec_u8)tc0vec, mask); /* tc = tc0 */ \
\
p1mask = diff_lt_altivec(p2, p0, betavec); \
p1mask = vec_and(p1mask, mask); /* if ( |p2 - p0| < beta) */ \
tc0masked = vec_and(p1mask, (vec_u8)tc0vec); \
finaltc0 = vec_sub(finaltc0, p1mask); /* tc++ */ \
newp1 = h264_deblock_q1(p0, p1, p2, q0, tc0masked); \
/*end if*/ \
\
q1mask = diff_lt_altivec(q2, q0, betavec); \
q1mask = vec_and(q1mask, mask); /* if ( |q2 - q0| < beta ) */\
tc0masked = vec_and(q1mask, (vec_u8)tc0vec); \
finaltc0 = vec_sub(finaltc0, q1mask); /* tc++ */ \
newq1 = h264_deblock_q1(p0, q1, q2, q0, tc0masked); \
/*end if*/ \
\
h264_deblock_p0_q0(p0, p1, q0, q1, finaltc0); \
p1 = newp1; \
q1 = newq1; \
}
static void h264_v_loop_filter_luma_altivec(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) {
if ((tc0[0] & tc0[1] & tc0[2] & tc0[3]) >= 0) {
register vec_u8 p2 = vec_ld(-3*stride, pix);
register vec_u8 p1 = vec_ld(-2*stride, pix);
register vec_u8 p0 = vec_ld(-1*stride, pix);
register vec_u8 q0 = vec_ld(0, pix);
register vec_u8 q1 = vec_ld(stride, pix);
register vec_u8 q2 = vec_ld(2*stride, pix);
h264_loop_filter_luma_altivec(p2, p1, p0, q0, q1, q2, alpha, beta, tc0);
vec_st(p1, -2*stride, pix);
vec_st(p0, -1*stride, pix);
vec_st(q0, 0, pix);
vec_st(q1, stride, pix);
}
}
static void h264_h_loop_filter_luma_altivec(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) {
register vec_u8 line0, line1, line2, line3, line4, line5;
if ((tc0[0] & tc0[1] & tc0[2] & tc0[3]) < 0)
return;
readAndTranspose16x6(pix-3, stride, line0, line1, line2, line3, line4, line5);
h264_loop_filter_luma_altivec(line0, line1, line2, line3, line4, line5, alpha, beta, tc0);
transpose4x16(line1, line2, line3, line4);
write16x4(pix-2, stride, line1, line2, line3, line4);
}
static av_always_inline
void weight_h264_WxH_altivec(uint8_t *block, int stride, int log2_denom, int weight, int offset, int w, int h)
{
int y, aligned;
vec_u8 vblock;
vec_s16 vtemp, vweight, voffset, v0, v1;
vec_u16 vlog2_denom;
DECLARE_ALIGNED(16, int32_t, temp)[4];
LOAD_ZERO;
offset <<= log2_denom;
if(log2_denom) offset += 1<<(log2_denom-1);
temp[0] = log2_denom;
temp[1] = weight;
temp[2] = offset;
vtemp = (vec_s16)vec_ld(0, temp);
vlog2_denom = (vec_u16)vec_splat(vtemp, 1);
vweight = vec_splat(vtemp, 3);
voffset = vec_splat(vtemp, 5);
aligned = !((unsigned long)block & 0xf);
for (y=0; y<h; y++) {
vblock = vec_ld(0, block);
v0 = (vec_s16)vec_mergeh(zero_u8v, vblock);
v1 = (vec_s16)vec_mergel(zero_u8v, vblock);
if (w == 16 || aligned) {
v0 = vec_mladd(v0, vweight, zero_s16v);
v0 = vec_adds(v0, voffset);
v0 = vec_sra(v0, vlog2_denom);
}
if (w == 16 || !aligned) {
v1 = vec_mladd(v1, vweight, zero_s16v);
v1 = vec_adds(v1, voffset);
v1 = vec_sra(v1, vlog2_denom);
}
vblock = vec_packsu(v0, v1);
vec_st(vblock, 0, block);
block += stride;
}
}
static av_always_inline
void biweight_h264_WxH_altivec(uint8_t *dst, uint8_t *src, int stride, int log2_denom,
int weightd, int weights, int offset, int w, int h)
{
int y, dst_aligned, src_aligned;
vec_u8 vsrc, vdst;
vec_s16 vtemp, vweights, vweightd, voffset, v0, v1, v2, v3;
vec_u16 vlog2_denom;
DECLARE_ALIGNED(16, int32_t, temp)[4];
LOAD_ZERO;
offset = ((offset + 1) | 1) << log2_denom;
temp[0] = log2_denom+1;
temp[1] = weights;
temp[2] = weightd;
temp[3] = offset;
vtemp = (vec_s16)vec_ld(0, temp);
vlog2_denom = (vec_u16)vec_splat(vtemp, 1);
vweights = vec_splat(vtemp, 3);
vweightd = vec_splat(vtemp, 5);
voffset = vec_splat(vtemp, 7);
dst_aligned = !((unsigned long)dst & 0xf);
src_aligned = !((unsigned long)src & 0xf);
for (y=0; y<h; y++) {
vdst = vec_ld(0, dst);
vsrc = vec_ld(0, src);
v0 = (vec_s16)vec_mergeh(zero_u8v, vdst);
v1 = (vec_s16)vec_mergel(zero_u8v, vdst);
v2 = (vec_s16)vec_mergeh(zero_u8v, vsrc);
v3 = (vec_s16)vec_mergel(zero_u8v, vsrc);
if (w == 8) {
if (src_aligned)
v3 = v2;
else
v2 = v3;
}
if (w == 16 || dst_aligned) {
v0 = vec_mladd(v0, vweightd, zero_s16v);
v2 = vec_mladd(v2, vweights, zero_s16v);
v0 = vec_adds(v0, voffset);
v0 = vec_adds(v0, v2);
v0 = vec_sra(v0, vlog2_denom);
}
if (w == 16 || !dst_aligned) {
v1 = vec_mladd(v1, vweightd, zero_s16v);
v3 = vec_mladd(v3, vweights, zero_s16v);
v1 = vec_adds(v1, voffset);
v1 = vec_adds(v1, v3);
v1 = vec_sra(v1, vlog2_denom);
}
vdst = vec_packsu(v0, v1);
vec_st(vdst, 0, dst);
dst += stride;
src += stride;
}
}
#define H264_WEIGHT(W,H) \
static void ff_weight_h264_pixels ## W ## x ## H ## _altivec(uint8_t *block, int stride, int log2_denom, int weight, int offset){ \
weight_h264_WxH_altivec(block, stride, log2_denom, weight, offset, W, H); \
}\
static void ff_biweight_h264_pixels ## W ## x ## H ## _altivec(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset){ \
biweight_h264_WxH_altivec(dst, src, stride, log2_denom, weightd, weights, offset, W, H); \
}
H264_WEIGHT(16,16)
H264_WEIGHT(16, 8)
H264_WEIGHT( 8,16)
H264_WEIGHT( 8, 8)
H264_WEIGHT( 8, 4)
void dsputil_h264_init_ppc(DSPContext* c, AVCodecContext *avctx) {
const int h264_high_depth = avctx->codec_id == CODEC_ID_H264 && avctx->bits_per_raw_sample > 8;
if (av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC) {
if (!h264_high_depth) {
c->put_h264_chroma_pixels_tab[0] = put_h264_chroma_mc8_altivec;
c->avg_h264_chroma_pixels_tab[0] = avg_h264_chroma_mc8_altivec;
#define dspfunc(PFX, IDX, NUM) \
c->PFX ## _pixels_tab[IDX][ 0] = PFX ## NUM ## _mc00_altivec; \
c->PFX ## _pixels_tab[IDX][ 1] = PFX ## NUM ## _mc10_altivec; \
c->PFX ## _pixels_tab[IDX][ 2] = PFX ## NUM ## _mc20_altivec; \
c->PFX ## _pixels_tab[IDX][ 3] = PFX ## NUM ## _mc30_altivec; \
c->PFX ## _pixels_tab[IDX][ 4] = PFX ## NUM ## _mc01_altivec; \
c->PFX ## _pixels_tab[IDX][ 5] = PFX ## NUM ## _mc11_altivec; \
c->PFX ## _pixels_tab[IDX][ 6] = PFX ## NUM ## _mc21_altivec; \
c->PFX ## _pixels_tab[IDX][ 7] = PFX ## NUM ## _mc31_altivec; \
c->PFX ## _pixels_tab[IDX][ 8] = PFX ## NUM ## _mc02_altivec; \
c->PFX ## _pixels_tab[IDX][ 9] = PFX ## NUM ## _mc12_altivec; \
c->PFX ## _pixels_tab[IDX][10] = PFX ## NUM ## _mc22_altivec; \
c->PFX ## _pixels_tab[IDX][11] = PFX ## NUM ## _mc32_altivec; \
c->PFX ## _pixels_tab[IDX][12] = PFX ## NUM ## _mc03_altivec; \
c->PFX ## _pixels_tab[IDX][13] = PFX ## NUM ## _mc13_altivec; \
c->PFX ## _pixels_tab[IDX][14] = PFX ## NUM ## _mc23_altivec; \
c->PFX ## _pixels_tab[IDX][15] = PFX ## NUM ## _mc33_altivec
dspfunc(put_h264_qpel, 0, 16);
dspfunc(avg_h264_qpel, 0, 16);
#undef dspfunc
}
}
}
void ff_h264dsp_init_ppc(H264DSPContext *c, const int bit_depth)
{
if (av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC) {
if (bit_depth == 8) {
c->h264_idct_add = ff_h264_idct_add_altivec;
c->h264_idct_add8 = ff_h264_idct_add8_altivec;
c->h264_idct_add16 = ff_h264_idct_add16_altivec;
c->h264_idct_add16intra = ff_h264_idct_add16intra_altivec;
c->h264_idct_dc_add= h264_idct_dc_add_altivec;
c->h264_idct8_dc_add = ff_h264_idct8_dc_add_altivec;
c->h264_idct8_add = ff_h264_idct8_add_altivec;
c->h264_idct8_add4 = ff_h264_idct8_add4_altivec;
c->h264_v_loop_filter_luma= h264_v_loop_filter_luma_altivec;
c->h264_h_loop_filter_luma= h264_h_loop_filter_luma_altivec;
c->weight_h264_pixels_tab[0] = ff_weight_h264_pixels16x16_altivec;
c->weight_h264_pixels_tab[1] = ff_weight_h264_pixels16x8_altivec;
c->weight_h264_pixels_tab[2] = ff_weight_h264_pixels8x16_altivec;
c->weight_h264_pixels_tab[3] = ff_weight_h264_pixels8x8_altivec;
c->weight_h264_pixels_tab[4] = ff_weight_h264_pixels8x4_altivec;
c->biweight_h264_pixels_tab[0] = ff_biweight_h264_pixels16x16_altivec;
c->biweight_h264_pixels_tab[1] = ff_biweight_h264_pixels16x8_altivec;
c->biweight_h264_pixels_tab[2] = ff_biweight_h264_pixels8x16_altivec;
c->biweight_h264_pixels_tab[3] = ff_biweight_h264_pixels8x8_altivec;
c->biweight_h264_pixels_tab[4] = ff_biweight_h264_pixels8x4_altivec;
}
}
}
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