[FFmpeg-devel] [PATCH] PPC64: Add IBM POWER8 SIMD Implementation
Dan Parrot
dan.parrot at mail.com
Thu Jun 16 01:06:29 CEST 2016
On Wed, 2016-06-15 at 16:51 +0200, Hendrik Leppkes wrote:
> On Wed, Jun 15, 2016 at 6:25 AM, Dan Parrot <dan.parrot at mail.com> wrote:
> > This is the first commit addressing Trac ticket #5570. Functions defined in
> > libswscale/input.c have corresponding definitions in libswscale/ppc/input_vsx.h
> > The corresponding function names in the latter contain the suffix "_vsx".
> > ---
> > libswscale/input.c | 44 +--
> > libswscale/ppc/input_vsx.h | 831 +++++++++++++++++++++++++++++++++++++++++++++
> > 2 files changed, 853 insertions(+), 22 deletions(-)
> > create mode 100644 libswscale/ppc/input_vsx.h
> >
> > diff --git a/libswscale/input.c b/libswscale/input.c
> > index 14ab5ab..de4347e 100644
> > --- a/libswscale/input.c
> > +++ b/libswscale/input.c
> > @@ -40,6 +40,13 @@
> > #define r ((origin == AV_PIX_FMT_BGR48BE || origin == AV_PIX_FMT_BGR48LE || origin == AV_PIX_FMT_BGRA64BE || origin == AV_PIX_FMT_BGRA64LE) ? b_r : r_b)
> > #define b ((origin == AV_PIX_FMT_BGR48BE || origin == AV_PIX_FMT_BGR48LE || origin == AV_PIX_FMT_BGRA64BE || origin == AV_PIX_FMT_BGRA64LE) ? r_b : b_r)
> >
> > +#ifdef HAVE_VSX
> > +#include "ppc/input_vsx.h"
> > +#define RENAME_SIMD(fname) fname ## _vsx
> > +#elif
> > +#define RENAME_SIMD(fname) fname
> > +#endif
> > +
> > static av_always_inline void
> > rgb64ToY_c_template(uint16_t *dst, const uint16_t *src, int width,
> > enum AVPixelFormat origin, int32_t *rgb2yuv)
> > @@ -99,7 +106,7 @@ static void pattern ## 64 ## BE_LE ## ToY_c(uint8_t *_dst, const uint8_t *_src,
> > { \
> > const uint16_t *src = (const uint16_t *) _src; \
> > uint16_t *dst = (uint16_t *) _dst; \
> > - rgb64ToY_c_template(dst, src, width, origin, rgb2yuv); \
> > + RENAME_SIMD(rgb64ToY_c_template)(dst, src, width, origin, rgb2yuv); \
> > } \
>
> This is not how we integrate SIMD optimizations. These are the C
> functions, they are not meant to perform the SIMD.
> What you should do is provide SIMD functions and then provide a
> SIMD-specific init function that overwrites the function pointers with
> your SIMD functions.
> ie. just how it is done on x86. But do not touch the C functions by
> overriding them right in the code with SIMD variants, making the C
> variants inaccessible.
1. The #ifdef HAVE_VSX at the top of the file should actually be #if
HAVE_VSX. The intent is for C variants of functions to be replaced by
SIMD versions. But only for PowerPC machines that have Vector-Scalar
hardware. All other machines will retain exactly the same function names
they currently possess. Would that change eliminate this particular
objection?
2. To achieve the same effect using the style done for x86 requires more
code. Just considering the first function in input.c, one must provide:
i. A SIMD implementation of rgb64ToY_c_template
ii. Definitions for results of the 4 macro expansions of rgb64funcs.
These are the functions that actually instantiate rgb64ToY_c_template
iii. Replication of all the code in ff_sws_init_input_funcs that assigns
the results of item ii. above to function pointers.
Why is the x86 approach preferred over the seemingly simpler
preprocessor renaming?
>
> > \
> > static void pattern ## 64 ## BE_LE ## ToUV_c(uint8_t *_dstU, uint8_t *_dstV, \
> > @@ -109,7 +116,7 @@ static void pattern ## 64 ## BE_LE ## ToUV_c(uint8_t *_dstU, uint8_t *_dstV, \
> > const uint16_t *src1 = (const uint16_t *) _src1, \
> > *src2 = (const uint16_t *) _src2; \
> > uint16_t *dstU = (uint16_t *) _dstU, *dstV = (uint16_t *) _dstV; \
> > - rgb64ToUV_c_template(dstU, dstV, src1, src2, width, origin, rgb2yuv); \
> > + RENAME_SIMD(rgb64ToUV_c_template)(dstU, dstV, src1, src2, width, origin, rgb2yuv); \
> > } \
> > \
> > static void pattern ## 64 ## BE_LE ## ToUV_half_c(uint8_t *_dstU, uint8_t *_dstV, \
> > @@ -119,7 +126,7 @@ static void pattern ## 64 ## BE_LE ## ToUV_half_c(uint8_t *_dstU, uint8_t *_dstV
> > const uint16_t *src1 = (const uint16_t *) _src1, \
> > *src2 = (const uint16_t *) _src2; \
> > uint16_t *dstU = (uint16_t *) _dstU, *dstV = (uint16_t *) _dstV; \
> > - rgb64ToUV_half_c_template(dstU, dstV, src1, src2, width, origin, rgb2yuv); \
> > + RENAME_SIMD(rgb64ToUV_half_c_template)(dstU, dstV, src1, src2, width, origin, rgb2yuv); \
> > }
> >
> > rgb64funcs(rgb, LE, AV_PIX_FMT_RGBA64LE)
> > @@ -203,7 +210,7 @@ static void pattern ## 48 ## BE_LE ## ToY_c(uint8_t *_dst, \
> > { \
> > const uint16_t *src = (const uint16_t *)_src; \
> > uint16_t *dst = (uint16_t *)_dst; \
> > - rgb48ToY_c_template(dst, src, width, origin, rgb2yuv); \
> > + RENAME_SIMD(rgb48ToY_c_template)(dst, src, width, origin, rgb2yuv); \
> > } \
> > \
> > static void pattern ## 48 ## BE_LE ## ToUV_c(uint8_t *_dstU, \
> > @@ -218,7 +225,7 @@ static void pattern ## 48 ## BE_LE ## ToUV_c(uint8_t *_dstU, \
> > *src2 = (const uint16_t *)_src2; \
> > uint16_t *dstU = (uint16_t *)_dstU, \
> > *dstV = (uint16_t *)_dstV; \
> > - rgb48ToUV_c_template(dstU, dstV, src1, src2, width, origin, rgb2yuv); \
> > + RENAME_SIMD(rgb48ToUV_c_template)(dstU, dstV, src1, src2, width, origin, rgb2yuv); \
> > } \
> > \
> > static void pattern ## 48 ## BE_LE ## ToUV_half_c(uint8_t *_dstU, \
> > @@ -233,7 +240,7 @@ static void pattern ## 48 ## BE_LE ## ToUV_half_c(uint8_t *_dstU, \
> > *src2 = (const uint16_t *)_src2; \
> > uint16_t *dstU = (uint16_t *)_dstU, \
> > *dstV = (uint16_t *)_dstV; \
> > - rgb48ToUV_half_c_template(dstU, dstV, src1, src2, width, origin, rgb2yuv); \
> > + RENAME_SIMD(rgb48ToUV_half_c_template)(dstU, dstV, src1, src2, width, origin, rgb2yuv); \
> > }
> >
> > rgb48funcs(rgb, LE, AV_PIX_FMT_RGB48LE)
> > @@ -273,7 +280,6 @@ static av_always_inline void rgb16_32ToY_c_template(int16_t *dst,
> > dst[i] = (ry * r + gy * g + by * b + rnd) >> ((S)-6);
> > }
> > }
> > -
> > static av_always_inline void rgb16_32ToUV_c_template(int16_t *dstU,
> > int16_t *dstV,
> > const uint8_t *src,
> > @@ -351,17 +357,17 @@ static av_always_inline void rgb16_32ToUV_half_c_template(int16_t *dstU,
> > static void name ## ToY_c(uint8_t *dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2, \
> > int width, uint32_t *tab) \
> > { \
> > - rgb16_32ToY_c_template((int16_t*)dst, src, width, fmt, shr, shg, shb, shp, \
> > - maskr, maskg, maskb, rsh, gsh, bsh, S, tab); \
> > + RENAME_SIMD(rgb16_32ToY_c_template)((int16_t*)dst, src, width, fmt, shr, shg, shb, shp, \
> > + maskr, maskg, maskb, rsh, gsh, bsh, S, tab); \
> > } \
> > \
> > static void name ## ToUV_c(uint8_t *dstU, uint8_t *dstV, \
> > const uint8_t *unused0, const uint8_t *src, const uint8_t *dummy, \
> > int width, uint32_t *tab) \
> > { \
> > - rgb16_32ToUV_c_template((int16_t*)dstU, (int16_t*)dstV, src, width, fmt, \
> > - shr, shg, shb, shp, \
> > - maskr, maskg, maskb, rsh, gsh, bsh, S, tab);\
> > + RENAME_SIMD(rgb16_32ToUV_c_template)((int16_t*)dstU, (int16_t*)dstV, src, width, fmt, \
> > + shr, shg, shb, shp, \
> > + maskr, maskg, maskb, rsh, gsh, bsh, S, tab);\
> > } \
> > \
> > static void name ## ToUV_half_c(uint8_t *dstU, uint8_t *dstV, \
> > @@ -369,10 +375,10 @@ static void name ## ToUV_half_c(uint8_t *dstU, uint8_t *dstV, \
> > const uint8_t *dummy, \
> > int width, uint32_t *tab) \
> > { \
> > - rgb16_32ToUV_half_c_template((int16_t*)dstU, (int16_t*)dstV, src, width, fmt, \
> > - shr, shg, shb, shp, \
> > - maskr, maskg, maskb, \
> > - rsh, gsh, bsh, S, tab); \
> > + RENAME_SIMD(rgb16_32ToUV_half_c_template)((int16_t*)dstU, (int16_t*)dstV, src, width, fmt, \
> > + shr, shg, shb, shp, \
> > + maskr, maskg, maskb, \
> > + rsh, gsh, bsh, S, tab); \
> > }
> >
> > rgb16_32_wrapper(AV_PIX_FMT_BGR32, bgr32, 16, 0, 0, 0, 0xFF0000, 0xFF00, 0x00FF, 8, 0, 8, RGB2YUV_SHIFT + 8)
> > @@ -978,7 +984,6 @@ av_cold void ff_sws_init_input_funcs(SwsContext *c)
> > case AV_PIX_FMT_GBRP9LE:
> > c->readChrPlanar = planar_rgb9le_to_uv;
> > break;
> > - case AV_PIX_FMT_GBRAP10LE:
> > case AV_PIX_FMT_GBRP10LE:
> > c->readChrPlanar = planar_rgb10le_to_uv;
> > break;
> > @@ -996,7 +1001,6 @@ av_cold void ff_sws_init_input_funcs(SwsContext *c)
> > case AV_PIX_FMT_GBRP9BE:
> > c->readChrPlanar = planar_rgb9be_to_uv;
> > break;
> > - case AV_PIX_FMT_GBRAP10BE:
> > case AV_PIX_FMT_GBRP10BE:
> > c->readChrPlanar = planar_rgb10be_to_uv;
> > break;
> > @@ -1260,8 +1264,6 @@ av_cold void ff_sws_init_input_funcs(SwsContext *c)
> > case AV_PIX_FMT_GBRP9LE:
> > c->readLumPlanar = planar_rgb9le_to_y;
> > break;
> > - case AV_PIX_FMT_GBRAP10LE:
> > - c->readAlpPlanar = planar_rgb10le_to_a;
> > case AV_PIX_FMT_GBRP10LE:
> > c->readLumPlanar = planar_rgb10le_to_y;
> > break;
> > @@ -1281,8 +1283,6 @@ av_cold void ff_sws_init_input_funcs(SwsContext *c)
> > case AV_PIX_FMT_GBRP9BE:
> > c->readLumPlanar = planar_rgb9be_to_y;
> > break;
> > - case AV_PIX_FMT_GBRAP10BE:
> > - c->readAlpPlanar = planar_rgb10be_to_a;
> > case AV_PIX_FMT_GBRP10BE:
> > c->readLumPlanar = planar_rgb10be_to_y;
> > break;
> > diff --git a/libswscale/ppc/input_vsx.h b/libswscale/ppc/input_vsx.h
> > new file mode 100644
> > index 0000000..09fe8c1
> > --- /dev/null
> > +++ b/libswscale/ppc/input_vsx.h
> > @@ -0,0 +1,831 @@
> > +/*
> > + * Copyright (C) 2016 Dan Parrot <dan.parrot at mail.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
> > + */
> > +
> > +// This is a SIMD version for IBM POWER8 of function rgb64ToY_c_template
> > +// in file libswscale/input.c
> > +static av_always_inline void
> > +rgb64ToY_c_template_vsx(uint16_t *dst, const uint16_t *src, int width,
> > + enum AVPixelFormat origin, int32_t *rgb2yuv)
> > +{
> > + int32_t ry = rgb2yuv[RY_IDX], gy = rgb2yuv[GY_IDX], by = rgb2yuv[BY_IDX];
> > + int i, j;
> > + int num_vec, frag;
> > +
> > + num_vec = width / 8;
> > + frag = width % 8;
> > +
> > + vector int v_ry = vec_splats((int)ry);
> > + vector int v_gy = vec_splats((int)gy);
> > + vector int v_by = vec_splats((int)by);
> > +
> > + int s_opr2;
> > + s_opr2 = (int)(0x2001 << (RGB2YUV_SHIFT-1));
> > +
> > + vector int v_opr1 = vec_splats((int)RGB2YUV_SHIFT);
> > + vector int v_opr2 = vec_splats((int)s_opr2);
> > +
> > + vector int v_r, v_g, v_b, v_tmp;
> > + vector short v_tmpi, v_dst;
> > +
> > + for (i = 0; i < num_vec; i++) {
> > + for (j = 7; j >= 0 ; j--) {
> > + int r_b = input_pixel(&src[(i*8+j)*4+0]);
> > + int g = input_pixel(&src[(i*8+j)*4+1]);
> > + int b_r = input_pixel(&src[(i*8+j)*4+2]);
> > +
> > + v_r[j % 4] = r;
> > + v_g[j % 4] = g;
> > + v_b[j % 4] = b;
> > +
> > + if (!(j % 4)) {
> > + v_tmp = v_ry * v_r;
> > + v_tmp = v_tmp + v_gy * v_g;
> > + v_tmp = v_tmp + v_by * v_b;
> > + v_tmp = v_tmp + v_opr2;
> > + v_tmp = vec_sr(v_tmp, (vector unsigned int)v_opr1);
> > +
> > + v_tmpi = (vector short)v_tmp;
> > + v_dst[(j / 4) * 4 + 3] = v_tmpi[6];
> > + v_dst[(j / 4) * 4 + 2] = v_tmpi[4];
> > + v_dst[(j / 4) * 4 + 1] = v_tmpi[2];
> > + v_dst[(j / 4) * 4 + 0] = v_tmpi[0];
> > + }
> > + }
> > + vec_vsx_st(v_dst, 0, (short *)&dst[i*8]);
> > + }
> > +
> > + // computation for any less than vector-length items at tail end
> > + if( frag ) {
> > + for (i = 0; i < frag; i++) {
> > + unsigned int r_b = input_pixel(&src[num_vec*8+i*4+0]);
> > + unsigned int g = input_pixel(&src[num_vec*8+i*4+1]);
> > + unsigned int b_r = input_pixel(&src[num_vec*8+i*4+2]);
> > +
> > + dst[num_vec*8+i] = (ry*r + gy*g + by*b + (0x2001<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
> > + }
> > + }
> > +
> > +}
> > +
> > +// This is a SIMD version for IBM POWER8 of function rgb64ToUV_c_template
> > +// in file libswscale/input.c
> > +static av_always_inline void
> > +rgb64ToUV_c_template_vsx(uint16_t *dstU, uint16_t *dstV,
> > + const uint16_t *src1, const uint16_t *src2,
> > + int width, enum AVPixelFormat origin, int32_t *rgb2yuv)
> > +{
> > +
> > + int i, j;
> > + int num_vec, frag;
> > + int s_opr2;
> > +
> > + int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
> > + int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
> > + av_assert1(src1==src2);
> > +
> > + s_opr2 = (int)(0x10001 << (RGB2YUV_SHIFT-1));
> > +
> > + vector int v_ru = vec_splats((int)ru);
> > + vector int v_gu = vec_splats((int)gu);
> > + vector int v_bu = vec_splats((int)bu);
> > +
> > + vector int v_rv = vec_splats((int)rv);
> > + vector int v_gv = vec_splats((int)gv);
> > + vector int v_bv = vec_splats((int)bv);
> > +
> > + vector int v_opr1 = vec_splats((int)RGB2YUV_SHIFT);
> > + vector int v_opr2 = vec_splats((int)s_opr2);
> > +
> > + vector int v_r, v_g, v_b, v_tmp;
> > + vector short v_tmpi, v_dstu, v_dstv;
> > +
> > + num_vec = width / 8;
> > + frag = width % 8;
> > +
> > + for (i = 0; i < num_vec; i++) {
> > + for (j = 7; j >= 0 ; j--) {
> > + int r_b = input_pixel(&src1[(i*8+j)*4+0]);
> > + int g = input_pixel(&src1[(i*8+j)*4+1]);
> > + int b_r = input_pixel(&src1[(i*8+j)*4+2]);
> > +
> > +
> > + v_r[j % 4] = r;
> > + v_g[j % 4] = g;
> > + v_b[j % 4] = b;
> > +
> > + if (!(j % 4)) {
> > + v_tmp = v_ru * v_r;
> > + v_tmp = v_tmp + v_gu * v_g;
> > + v_tmp = v_tmp + v_bu * v_b;
> > + v_tmp = v_tmp + v_opr2;
> > + v_tmp = vec_sr(v_tmp, (vector unsigned int)v_opr1);
> > +
> > + v_tmpi = (vector short)v_tmp;
> > + v_dstu[(j / 4) * 4 + 3] = v_tmpi[6];
> > + v_dstu[(j / 4) * 4 + 2] = v_tmpi[4];
> > + v_dstu[(j / 4) * 4 + 1] = v_tmpi[2];
> > + v_dstu[(j / 4) * 4 + 0] = v_tmpi[0];
> > +
> > + v_tmp = v_rv * v_r;
> > + v_tmp = v_tmp + v_gv * v_g;
> > + v_tmp = v_tmp + v_bv * v_b;
> > + v_tmp = v_tmp + v_opr2;
> > + v_tmp = vec_sr(v_tmp, (vector unsigned int)v_opr1);
> > +
> > + v_tmpi = (vector short)v_tmp;
> > + v_dstv[(j / 4) * 4 + 3] = v_tmpi[6];
> > + v_dstv[(j / 4) * 4 + 2] = v_tmpi[4];
> > + v_dstv[(j / 4) * 4 + 1] = v_tmpi[2];
> > + v_dstv[(j / 4) * 4 + 0] = v_tmpi[0];
> > + }
> > + }
> > + vec_vsx_st(v_dstu, 0, (short *)&dstU[i*8]);
> > + vec_vsx_st(v_dstv, 0, (short *)&dstV[i*8]);
> > + }
> > +
> > + // computation for any less than vector-length items at tail end
> > + if( frag ) {
> > + for (i = 0; i < frag; i++) {
> > + int r_b = input_pixel(&src1[num_vec*8+i*4+0]);
> > + int g = input_pixel(&src1[num_vec*8+i*4+1]);
> > + int b_r = input_pixel(&src1[num_vec*8+i*4+2]);
> > +
> > + dstU[num_vec*8+i] = (ru*r + gu*g + bu*b + (0x10001<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
> > + dstV[num_vec*8+i] = (rv*r + gv*g + bv*b + (0x10001<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
> > + }
> > + }
> > +
> > +}
> > +
> > +// This is a SIMD version for IBM POWER8 of function rgb64ToUV_half_c_template
> > +// in file libswscale/input.c
> > +static av_always_inline void
> > +rgb64ToUV_half_c_template_vsx(uint16_t *dstU, uint16_t *dstV,
> > + const uint16_t *src1, const uint16_t *src2,
> > + int width, enum AVPixelFormat origin, int32_t *rgb2yuv)
> > +{
> > +
> > + int i, j;
> > + int num_vec, frag;
> > + int s_opr2;
> > +
> > + int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
> > + int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
> > + av_assert1(src1==src2);
> > +
> > + vector int v_ru = vec_splats((int)ru);
> > + vector int v_gu = vec_splats((int)gu);
> > + vector int v_bu = vec_splats((int)bu);
> > +
> > + vector int v_rv = vec_splats((int)rv);
> > + vector int v_gv = vec_splats((int)gv);
> > + vector int v_bv = vec_splats((int)bv);
> > +
> > + s_opr2 = (int)(0x10001 << (RGB2YUV_SHIFT-1));
> > +
> > + vector int v_opr1 = vec_splats((int)RGB2YUV_SHIFT);
> > + vector int v_opr2 = vec_splats((int)s_opr2);
> > +
> > + vector int v_r, v_g, v_b, v_tmp;
> > + vector short v_tmpi, v_dstu, v_dstv;
> > +
> > + num_vec = width / 8;
> > + frag = width % 8;
> > +
> > + for (i = 0; i < num_vec; i++) {
> > + for (j = 7; j >= 0 ; j--) {
> > + int r_b = (input_pixel(&src1[8 * i * 8 + j + 0]) + input_pixel(&src1[8 * i * 8 + j + 4]) + 1) >> 1;
> > + int g = (input_pixel(&src1[8 * i * 8 + j + 1]) + input_pixel(&src1[8 * i * 8 + j + 5]) + 1) >> 1;
> > + int b_r = (input_pixel(&src1[8 * i * 8 + j + 2]) + input_pixel(&src1[8 * i * 8 + j + 6]) + 1) >> 1;
> > +
> > + v_r[j % 4] = r;
> > + v_g[j % 4] = g;
> > + v_b[j % 4] = b;
> > +
> > + if (!(j % 4)) {
> > + v_tmp = v_ru * v_r;
> > + v_tmp = v_tmp + v_gu * v_g;
> > + v_tmp = v_tmp + v_bu * v_b;
> > + v_tmp = v_tmp + v_opr2;
> > + v_tmp = vec_sr(v_tmp, (vector unsigned int)v_opr1);
> > +
> > + v_tmpi = (vector short)v_tmp;
> > + v_dstu[(j / 4) * 4 + 3] = v_tmpi[6];
> > + v_dstu[(j / 4) * 4 + 2] = v_tmpi[4];
> > + v_dstu[(j / 4) * 4 + 1] = v_tmpi[2];
> > + v_dstu[(j / 4) * 4 + 0] = v_tmpi[0];
> > +
> > + v_tmp = v_rv * v_r;
> > + v_tmp = v_tmp + v_gv * v_g;
> > + v_tmp = v_tmp + v_bv * v_b;
> > + v_tmp = v_tmp + v_opr2;
> > + v_tmp = vec_sr(v_tmp, (vector unsigned int)v_opr1);
> > +
> > + v_tmpi = (vector short)v_tmp;
> > + v_dstv[(j / 4) * 4 + 3] = v_tmpi[6];
> > + v_dstv[(j / 4) * 4 + 2] = v_tmpi[4];
> > + v_dstv[(j / 4) * 4 + 1] = v_tmpi[2];
> > + v_dstv[(j / 4) * 4 + 0] = v_tmpi[0];
> > + }
> > + }
> > + vec_vsx_st(v_dstu, 0, (short *)&dstU[i*8]);
> > + vec_vsx_st(v_dstv, 0, (short *)&dstV[i*8]);
> > + }
> > +
> > + // computation for any less than vector-length items at tail end
> > + if( frag ) {
> > + for (i = 0; i < frag; i++) {
> > + int r_b = (input_pixel(&src1[num_vec * 8 + 8 * i + 0]) +
> > + input_pixel(&src1[num_vec * 8 + 8 * i + 4]) + 1) >> 1;
> > + int g = (input_pixel(&src1[num_vec * 8 + 8 * i + 1]) +
> > + input_pixel(&src1[num_vec * 8 + 8 * i + 5]) + 1) >> 1;
> > + int b_r = (input_pixel(&src1[num_vec * 8 + 8 * i + 2]) +
> > + input_pixel(&src1[num_vec * 8 + 8 * i + 6]) + 1) >> 1;
> > +
> > + dstU[num_vec*8+i] = (ru*r + gu*g + bu*b + (0x10001<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
> > + dstV[num_vec*8+i] = (rv*r + gv*g + bv*b + (0x10001<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
> > + }
> > + }
> > +
> > +}
> > +
> > +// This is a SIMD version for IBM POWER8 of function rgb48ToY_c_template
> > +// in file libswscale/input.c
> > +static av_always_inline void rgb48ToY_c_template_vsx(uint16_t *dst,
> > + const uint16_t *src, int width,
> > + enum AVPixelFormat origin,
> > + int32_t *rgb2yuv)
> > +{
> > +
> > + int i, j;
> > + int32_t ry = rgb2yuv[RY_IDX], gy = rgb2yuv[GY_IDX], by = rgb2yuv[BY_IDX];
> > +
> > + int num_vec, frag;
> > +
> > + num_vec = width / 8;
> > + frag = width % 8;
> > +
> > + vector int v_ry = vec_splats((int)ry);
> > + vector int v_gy = vec_splats((int)gy);
> > + vector int v_by = vec_splats((int)by);
> > +
> > + int s_opr2;
> > + s_opr2 = (int)(0x2001 << (RGB2YUV_SHIFT-1));
> > +
> > + vector int v_opr1 = vec_splats((int)RGB2YUV_SHIFT);
> > + vector int v_opr2 = vec_splats((int)s_opr2);
> > +
> > + vector int v_r, v_g, v_b, v_tmp;
> > + vector short v_tmpi, v_dst;
> > +
> > + for (i = 0; i < num_vec; i++) {
> > + for (j = 7; j >= 0 ; j--) {
> > + int r_b = input_pixel(&src[(i * 8 + j) * 3 + 0]);
> > + int g = input_pixel(&src[(i * 8 + j) * 3 + 1]);
> > + int b_r = input_pixel(&src[(i * 8 + j) * 3 + 2]);
> > +
> > + v_r[j % 4] = r;
> > + v_g[j % 4] = g;
> > + v_b[j % 4] = b;
> > +
> > + if (!(j % 4)) {
> > + v_tmp = v_ry * v_r;
> > + v_tmp = v_tmp + v_gy * v_g;
> > + v_tmp = v_tmp + v_by * v_b;
> > + v_tmp = v_tmp + v_opr2;
> > + v_tmp = vec_sr(v_tmp, (vector unsigned int)v_opr1);
> > +
> > + v_tmpi = (vector short)v_tmp;
> > + v_dst[(j / 4) * 4 + 3] = v_tmpi[6];
> > + v_dst[(j / 4) * 4 + 2] = v_tmpi[4];
> > + v_dst[(j / 4) * 4 + 1] = v_tmpi[2];
> > + v_dst[(j / 4) * 4 + 0] = v_tmpi[0];
> > + }
> > + }
> > + vec_vsx_st(v_dst, 0, (short *)&dst[i*8]);
> > + }
> > +
> > + // computation for any less than vector-length items at tail end
> > + if( frag ) {
> > + for (i = 0; i < frag; i++) {
> > + int r_b = input_pixel(&src[(num_vec * 8 + i) * 3 + 0]);
> > + int g = input_pixel(&src[(num_vec * 8 + i) * 3 + 1]);
> > + int b_r = input_pixel(&src[(num_vec * 8 + i) * 3 + 2]);
> > +
> > + dst[num_vec*8+i] = (ry*r + gy*g + by*b + (0x2001<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
> > + }
> > + }
> > +
> > +}
> > +
> > +// This is a SIMD version for IBM POWER8 of function rgb48ToUV_c_template
> > +// in file libswscale/input.c
> > +static av_always_inline void rgb48ToUV_c_template_vsx(uint16_t *dstU,
> > + uint16_t *dstV,
> > + const uint16_t *src1,
> > + const uint16_t *src2,
> > + int width,
> > + enum AVPixelFormat origin,
> > + int32_t *rgb2yuv)
> > +{
> > +
> > + int i, j;
> > + int num_vec, frag;
> > + int s_opr2;
> > +
> > + int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
> > + int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
> > + av_assert1(src1==src2);
> > +
> > + num_vec = width / 8;
> > + frag = width % 8;
> > +
> > + vector int v_ru = vec_splats((int)ru);
> > + vector int v_gu = vec_splats((int)gu);
> > + vector int v_bu = vec_splats((int)bu);
> > +
> > + vector int v_rv = vec_splats((int)rv);
> > + vector int v_gv = vec_splats((int)gv);
> > + vector int v_bv = vec_splats((int)bv);
> > +
> > + s_opr2 = (int)(0x10001 << (RGB2YUV_SHIFT-1));
> > +
> > + vector int v_opr1 = vec_splats((int)RGB2YUV_SHIFT);
> > + vector int v_opr2 = vec_splats((int)s_opr2);
> > +
> > + vector int v_r, v_g, v_b, v_tmp;
> > + vector short v_tmpi, v_dstu, v_dstv;
> > +
> > + for (i = 0; i < num_vec; i++) {
> > + for (j = 7; j >= 0 ; j--) {
> > + int r_b = input_pixel(&src1[(i * 8 + j) * 3 + 0]);
> > + int g = input_pixel(&src1[(i * 8 + j) * 3 + 1]);
> > + int b_r = input_pixel(&src1[(i * 8 + j) * 3 + 2]);
> > +
> > + v_r[j % 4] = r;
> > + v_g[j % 4] = g;
> > + v_b[j % 4] = b;
> > +
> > + if(!(j % 4)) {
> > + v_tmp = v_ru * v_r;
> > + v_tmp = v_tmp + v_gu * v_g;
> > + v_tmp = v_tmp + v_bu * v_b;
> > + v_tmp = v_tmp + v_opr2;
> > + v_tmp = vec_sr(v_tmp, (vector unsigned int)v_opr1);
> > +
> > + v_tmpi = (vector short)v_tmp;
> > + v_dstu[(j / 4) * 4 + 3] = v_tmpi[6];
> > + v_dstu[(j / 4) * 4 + 2] = v_tmpi[4];
> > + v_dstu[(j / 4) * 4 + 1] = v_tmpi[2];
> > + v_dstu[(j / 4) * 4 + 0] = v_tmpi[0];
> > +
> > + v_tmp = v_rv * v_r;
> > + v_tmp = v_tmp + v_gv * v_g;
> > + v_tmp = v_tmp + v_bv * v_b;
> > + v_tmp = v_tmp + v_opr2;
> > + v_tmp = vec_sr(v_tmp, (vector unsigned int)v_opr1);
> > +
> > + v_tmpi = (vector short)v_tmp;
> > + v_dstv[(j / 4) * 4 + 3] = v_tmpi[6];
> > + v_dstv[(j / 4) * 4 + 2] = v_tmpi[4];
> > + v_dstv[(j / 4) * 4 + 1] = v_tmpi[2];
> > + v_dstv[(j / 4) * 4 + 0] = v_tmpi[0];
> > + }
> > + }
> > + vec_vsx_st(v_dstu, 0, (short *)&dstU[i*8]);
> > + vec_vsx_st(v_dstv, 0, (short *)&dstV[i*8]);
> > + }
> > +
> > + // computation for any less than vector-length items at tail end
> > + if( frag ) {
> > + for (i = 0; i < frag; i++) {
> > + int r_b = input_pixel(&src1[num_vec * 8 + i * 3 + 0]);
> > + int g = input_pixel(&src1[num_vec * 8 + i * 3 + 1]);
> > + int b_r = input_pixel(&src1[num_vec * 8 + i * 3 + 2]);
> > +
> > + dstU[num_vec*8+i] = (ru*r + gu*g + bu*b + (0x10001 << (RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
> > + dstV[num_vec*8+i] = (rv*r + gv*g + bv*b + (0x10001 << (RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
> > + }
> > + }
> > +
> > +}
> > +
> > +// This is a SIMD version for IBM POWER8 of function rgb48ToUV_half_c_template
> > +// in file libswscale/input.c
> > +static av_always_inline void rgb48ToUV_half_c_template_vsx(uint16_t *dstU,
> > + uint16_t *dstV,
> > + const uint16_t *src1,
> > + const uint16_t *src2,
> > + int width,
> > + enum AVPixelFormat origin,
> > + int32_t *rgb2yuv)
> > +{
> > +
> > + int i, j;
> > + int num_vec, frag;
> > +
> > + int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
> > + int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
> > + av_assert1(src1==src2);
> > +
> > + num_vec = width / 8;
> > + frag = width % 8;
> > +
> > + vector int v_ru = vec_splats((int)ru);
> > + vector int v_gu = vec_splats((int)gu);
> > + vector int v_bu = vec_splats((int)bu);
> > +
> > + vector int v_rv = vec_splats((int)rv);
> > + vector int v_gv = vec_splats((int)gv);
> > + vector int v_bv = vec_splats((int)bv);
> > +
> > + int s_opr2;
> > + s_opr2 = (int)(0x10001 << (RGB2YUV_SHIFT-1));
> > +
> > + vector int v_opr1 = vec_splats((int)RGB2YUV_SHIFT);
> > + vector int v_opr2 = vec_splats((int)s_opr2);
> > +
> > + vector int v_r, v_g, v_b, v_tmp;
> > + vector short v_tmpi, v_dstu, v_dstv;
> > +
> > + for (i = 0; i < num_vec; i++) {
> > + for (j = 7; j >= 0 ; j--) {
> > + int r_b = (input_pixel(&src1[6 * (i * 8 + j) + 0]) +
> > + input_pixel(&src1[6 * (i * 8 + j) + 3]) + 1) >> 1;
> > + int g = (input_pixel(&src1[6 * (i * 8 + j) + 1]) +
> > + input_pixel(&src1[6 * (i * 8 + j) + 4]) + 1) >> 1;
> > + int b_r = (input_pixel(&src1[6 * (i * 8 + j) + 2]) +
> > + input_pixel(&src1[6 * (i * 8 + j) + 5]) + 1) >> 1;
> > +
> > + v_r[j % 4] = r;
> > + v_g[j % 4] = g;
> > + v_b[j % 4] = b;
> > +
> > + if(!(j % 4)) {
> > + v_tmp = v_ru * v_r;
> > + v_tmp = v_tmp + v_gu * v_g;
> > + v_tmp = v_tmp + v_bu * v_b;
> > + v_tmp = v_tmp + v_opr2;
> > + v_tmp = vec_sr(v_tmp, (vector unsigned int)v_opr1);
> > +
> > + v_tmpi = (vector short)v_tmp;
> > + v_dstu[(j / 4) * 4 + 3] = v_tmpi[6];
> > + v_dstu[(j / 4) * 4 + 2] = v_tmpi[4];
> > + v_dstu[(j / 4) * 4 + 1] = v_tmpi[2];
> > + v_dstu[(j / 4) * 4 + 0] = v_tmpi[0];
> > +
> > + v_tmp = v_rv * v_r;
> > + v_tmp = v_tmp + v_gv * v_g;
> > + v_tmp = v_tmp + v_bv * v_b;
> > + v_tmp = v_tmp + v_opr2;
> > + v_tmp = vec_sr(v_tmp, (vector unsigned int)v_opr1);
> > +
> > + v_tmpi = (vector short)v_tmp;
> > + v_dstv[(j / 4) * 4 + 3] = v_tmpi[6];
> > + v_dstv[(j / 4) * 4 + 2] = v_tmpi[4];
> > + v_dstv[(j / 4) * 4 + 1] = v_tmpi[2];
> > + v_dstv[(j / 4) * 4 + 0] = v_tmpi[0];
> > + }
> > + }
> > + vec_vsx_st(v_dstu, 0, (short *)&dstU[i*8]);
> > + vec_vsx_st(v_dstv, 0, (short *)&dstV[i*8]);
> > + }
> > +
> > + // computation for any less than vector-length items at tail end
> > + if( frag ) {
> > + for (i = 0; i < frag; i++) {
> > + int r_b = (input_pixel(&src1[6 * (num_vec * 8 + i) + 0]) +
> > + input_pixel(&src1[6 * (num_vec * 8 + i) + 3]) + 1) >> 1;
> > + int g = (input_pixel(&src1[6 * (num_vec * 8 + i) + 1]) +
> > + input_pixel(&src1[6 * (num_vec * 8 + i) + 4]) + 1) >> 1;
> > + int b_r = (input_pixel(&src1[6 * (num_vec * 8 + i) + 2]) +
> > + input_pixel(&src1[6 * (num_vec * 8 + i) + 5]) + 1) >> 1;
> > +
> > + dstU[num_vec*8+i] = (ru*r + gu*g + bu*b + (0x10001 << (RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
> > + dstV[num_vec*8+i] = (rv*r + gv*g + bv*b + (0x10001 << (RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
> > + }
> > + }
> > +}
> > +
> > +#pragma push_macro("r")
> > +#pragma push_macro("b")
> > +#pragma push_macro("input_pixel")
> > +
> > +#undef r
> > +#undef b
> > +#undef input_pixel
> > +
> > +#define input_pixel(i) ((origin == AV_PIX_FMT_RGBA || \
> > + origin == AV_PIX_FMT_BGRA || \
> > + origin == AV_PIX_FMT_ARGB || \
> > + origin == AV_PIX_FMT_ABGR) \
> > + ? AV_RN32A(&src[(i) * 4]) \
> > + : (isBE(origin) ? AV_RB16(&src[(i) * 2]) \
> > + : AV_RL16(&src[(i) * 2])))
> > +
> > +// This is a SIMD version for IBM POWER8 of function rgb16_32ToY_c_template
> > +// in file libswscale/input.c
> > +static av_always_inline void rgb16_32ToY_c_template_vsx(int16_t *dst,
> > + const uint8_t *src,
> > + int width,
> > + enum AVPixelFormat origin,
> > + int shr, int shg,
> > + int shb, int shp,
> > + int maskr, int maskg,
> > + int maskb, int rsh,
> > + int gsh, int bsh, int S,
> > + int32_t *rgb2yuv)
> > +{
> > + const int ry = rgb2yuv[RY_IDX]<<rsh, gy = rgb2yuv[GY_IDX]<<gsh, by = rgb2yuv[BY_IDX]<<bsh;
> > + const unsigned rnd = (32<<((S)-1)) + (1<<(S-7));
> > + int i, j;
> > +
> > + int num_vec, frag;
> > +
> > + num_vec = width / 8;
> > + frag = width % 8;
> > +
> > + vector int v_ry = vec_splats((int)ry);
> > + vector int v_gy = vec_splats((int)gy);
> > + vector int v_by = vec_splats((int)by);
> > +
> > + vector int v_rnd = vec_splats((int)rnd);
> > + vector int v_opr = vec_splats((int)((S)-6));
> > +
> > + vector int v_r, v_b, v_g, v_tmp;
> > + vector short v_tmpi, v_dst;
> > +
> > + for (i = 0; i < num_vec; i++) {
> > + for (j = 7; j >= 0; j--) {
> > + int px = input_pixel(i * 8 + j) >> shp;
> > + int b = (px & maskb) >> shb;
> > + int g = (px & maskg) >> shg;
> > + int r = (px & maskr) >> shr;
> > +
> > + v_r[j % 4] = r;
> > + v_g[j % 4] = g;
> > + v_b[j % 4] = b;
> > +
> > + if (!(j % 4)) {
> > + v_tmp = v_ry * v_r;
> > + v_tmp = v_tmp + v_gy * v_g;
> > + v_tmp = v_tmp + v_by * v_b;
> > + v_tmp = v_tmp + v_rnd;
> > + v_tmp = vec_sr(v_tmp, (vector unsigned int)v_opr);
> > +
> > + v_tmpi = (vector short)v_tmp;
> > + v_dst[(j / 4) * 4 + 3] = v_tmpi[6];
> > + v_dst[(j / 4) * 4 + 2] = v_tmpi[4];
> > + v_dst[(j / 4) * 4 + 1] = v_tmpi[2];
> > + v_dst[(j / 4) * 4 + 0] = v_tmpi[0];
> > + }
> > + }
> > + vec_vsx_st(v_dst, 0, (short *)&dst[i * 8]);
> > + }
> > +
> > + if ( frag ) {
> > + for (i = 0; i < frag; i++) {
> > + int px = input_pixel(num_vec * 8 + i) >> shp;
> > + int b = (px & maskb) >> shb;
> > + int g = (px & maskg) >> shg;
> > + int r = (px & maskr) >> shr;
> > +
> > + dst[num_vec * 8 + i] = (ry * r + gy * g + by * b + rnd) >> ((S)-6);
> > + }
> > + }
> > +}
> > +
> > +// This is a SIMD version for IBM POWER8 of function rgb16_32ToUV_c_template
> > +// in file libswscale/input.c
> > +static av_always_inline void rgb16_32ToUV_c_template_vsx(int16_t *dstU,
> > + int16_t *dstV,
> > + const uint8_t *src,
> > + int width,
> > + enum AVPixelFormat origin,
> > + int shr, int shg,
> > + int shb, int shp,
> > + int maskr, int maskg,
> > + int maskb, int rsh,
> > + int gsh, int bsh, int S,
> > + int32_t *rgb2yuv)
> > +{
> > + const int ru = rgb2yuv[RU_IDX] << rsh, gu = rgb2yuv[GU_IDX] << gsh, bu = rgb2yuv[BU_IDX] << bsh,
> > + rv = rgb2yuv[RV_IDX] << rsh, gv = rgb2yuv[GV_IDX] << gsh, bv = rgb2yuv[BV_IDX] << bsh;
> > + const unsigned rnd = (256u<<((S)-1)) + (1<<(S-7));
> > + int i, j;
> > +
> > + int num_vec, frag;
> > +
> > + num_vec = width / 8;
> > + frag = width % 8;
> > +
> > + vector int v_ru = vec_splats((int)ru);
> > + vector int v_gu = vec_splats((int)gu);
> > + vector int v_bu = vec_splats((int)bu);
> > +
> > + vector int v_rv = vec_splats((int)rv);
> > + vector int v_gv = vec_splats((int)gv);
> > + vector int v_bv = vec_splats((int)bv);
> > +
> > + vector int v_rnd = vec_splats((int)rnd);
> > + vector int v_opr = vec_splats((int)((S)-6));
> > +
> > + vector int v_r, v_b, v_g;
> > + vector int v_tmp;
> > + vector short v_tmpi, v_dstu, v_dstv;
> > +
> > + for (i = 0; i < num_vec; i++) {
> > + for(j = 7; j >= 0; j--) {
> > + int px = input_pixel(i * 8 + j) >> shp;
> > + int b = (px & maskb) >> shb;
> > + int g = (px & maskg) >> shg;
> > + int r = (px & maskr) >> shr;
> > +
> > + v_r[j % 4] = r;
> > + v_g[j % 4] = g;
> > + v_b[j % 4] = b;
> > +
> > + if (!(j % 4)) {
> > + v_tmp = v_ru * v_r;
> > + v_tmp = v_tmp + v_gu * v_g;
> > + v_tmp = v_tmp + v_bu * v_b;
> > + v_tmp = v_tmp + v_rnd;
> > + v_tmp = vec_sr(v_tmp, (vector unsigned int)v_opr);
> > +
> > + v_tmpi = (vector short)v_tmp;
> > + v_dstu[(j / 4) * 4 + 3] = v_tmpi[6];
> > + v_dstu[(j / 4) * 4 + 2] = v_tmpi[4];
> > + v_dstu[(j / 4) * 4 + 1] = v_tmpi[2];
> > + v_dstu[(j / 4) * 4 + 0] = v_tmpi[0];
> > +
> > + v_tmp = v_rv * v_r;
> > + v_tmp = v_tmp + v_gv * v_g;
> > + v_tmp = v_tmp + v_bv * v_b;
> > + v_tmp = v_tmp + v_rnd;
> > + v_tmp = vec_sr(v_tmp, (vector unsigned int)v_opr);
> > +
> > + v_tmpi = (vector short)v_tmp;
> > + v_dstv[(j / 4) * 4 + 3] = v_tmpi[6];
> > + v_dstv[(j / 4) * 4 + 2] = v_tmpi[4];
> > + v_dstv[(j / 4) * 4 + 1] = v_tmpi[2];
> > + v_dstv[(j / 4) * 4 + 0] = v_tmpi[0];
> > + }
> > + }
> > + vec_vsx_st(v_dstu, 0, (short *)&dstU[i * 8]);
> > + vec_vsx_st(v_dstv, 0, (short *)&dstV[i * 8]);
> > + }
> > +
> > + if ( frag ) {
> > + for (i = 0; i < frag; i++) {
> > + int px = input_pixel(num_vec * 8 + i) >> shp;
> > + int b = (px & maskb) >> shb;
> > + int g = (px & maskg) >> shg;
> > + int r = (px & maskr) >> shr;
> > +
> > + dstU[num_vec * 8 + i] = (ru * r + gu * g + bu * b + rnd) >> ((S)-6);
> > + dstV[num_vec * 8 + i] = (rv * r + gv * g + bv * b + rnd) >> ((S)-6);
> > + }
> > + }
> > +}
> > +
> > +// This is a SIMD version for IBM POWER8 of function rgb16_32ToUV_half_c_template
> > +// in file libswscale/input.c
> > +static av_always_inline void rgb16_32ToUV_half_c_template_vsx(int16_t *dstU,
> > + int16_t *dstV,
> > + const uint8_t *src,
> > + int width,
> > + enum AVPixelFormat origin,
> > + int shr, int shg,
> > + int shb, int shp,
> > + int maskr, int maskg,
> > + int maskb, int rsh,
> > + int gsh, int bsh, int S,
> > + int32_t *rgb2yuv)
> > +{
> > + const int ru = rgb2yuv[RU_IDX] << rsh, gu = rgb2yuv[GU_IDX] << gsh, bu = rgb2yuv[BU_IDX] << bsh,
> > + rv = rgb2yuv[RV_IDX] << rsh, gv = rgb2yuv[GV_IDX] << gsh, bv = rgb2yuv[BV_IDX] << bsh,
> > + maskgx = ~(maskr | maskb);
> > + const unsigned rnd = (256U<<(S)) + (1<<(S-6));
> > + int i, j;
> > +
> > + int num_vec, frag;
> > +
> > + num_vec = width / 8;
> > + frag = width % 8;
> > +
> > + vector int v_ru = vec_splats((int)ru);
> > + vector int v_gu = vec_splats((int)gu);
> > + vector int v_bu = vec_splats((int)bu);
> > +
> > + vector int v_rv = vec_splats((int)rv);
> > + vector int v_gv = vec_splats((int)gv);
> > + vector int v_bv = vec_splats((int)bv);
> > +
> > + vector int v_rnd = vec_splats((int)rnd);
> > + vector int v_opr = vec_splats((int)((S)-6+1));
> > +
> > + vector int v_r, v_b, v_g;
> > + vector int v_tmp;
> > + vector short v_tmpi, v_dstu, v_dstv;
> > +
> > + maskr |= maskr << 1;
> > + maskb |= maskb << 1;
> > + maskg |= maskg << 1;
> > +
> > + for (i = 0; i < num_vec; i++) {
> > + for (j = 7; j >= 0 ; j--) {
> > + unsigned px0 = input_pixel(2 * (i * 8 + j) + 0) >> shp;
> > + unsigned px1 = input_pixel(2 * (i * 8 + j) + 1) >> shp;
> > + int b, r, g = (px0 & maskgx) + (px1 & maskgx);
> > + int rb = px0 + px1 - g;
> > +
> > + b = (rb & maskb) >> shb;
> > + if (shp ||
> > + origin == AV_PIX_FMT_BGR565LE || origin == AV_PIX_FMT_BGR565BE ||
> > + origin == AV_PIX_FMT_RGB565LE || origin == AV_PIX_FMT_RGB565BE) {
> > + g >>= shg;
> > + } else {
> > + g = (g & maskg) >> shg;
> > + }
> > + r = (rb & maskr) >> shr;
> > +
> > + v_r[j % 4] = r;
> > + v_g[j % 4] = g;
> > + v_b[j % 4] = b;
> > +
> > + if (!(j % 4)) {
> > + v_tmp = v_ru * v_r;
> > + v_tmp = v_tmp + v_gu * v_g;
> > + v_tmp = v_tmp + v_bu * v_b;
> > + v_tmp = v_tmp + v_rnd;
> > + v_tmp = vec_sr(v_tmp, (vector unsigned int)v_opr);
> > +
> > + v_tmpi = (vector short)v_tmp;
> > + v_dstu[(j / 4) * 4 + 3] = v_tmpi[6];
> > + v_dstu[(j / 4) * 4 + 2] = v_tmpi[4];
> > + v_dstu[(j / 4) * 4 + 1] = v_tmpi[2];
> > + v_dstu[(j / 4) * 4 + 0] = v_tmpi[0];
> > +
> > + v_tmp = v_rv * v_r;
> > + v_tmp = v_tmp + v_gv * v_g;
> > + v_tmp = v_tmp + v_bv * v_b;
> > + v_tmp = v_tmp + v_rnd;
> > + v_tmp = vec_sr(v_tmp, (vector unsigned int)v_opr);
> > +
> > + v_tmpi = (vector short)v_tmp;
> > + v_dstv[(j / 4) * 4 + 3] = v_tmpi[6];
> > + v_dstv[(j / 4) * 4 + 2] = v_tmpi[4];
> > + v_dstv[(j / 4) * 4 + 1] = v_tmpi[2];
> > + v_dstv[(j / 4) * 4 + 0] = v_tmpi[0];
> > + }
> > + }
> > + vec_vsx_st(v_dstu, 0, (short *)&dstU[i * 8]);
> > + vec_vsx_st(v_dstv, 0, (short *)&dstV[i * 8]);
> > + }
> > +
> > + if ( frag ) {
> > + for (i = 0; i < frag; i++) {
> > + unsigned px0 = input_pixel(2 * (num_vec * 8 + i) + 0) >> shp;
> > + unsigned px1 = input_pixel(2 * (num_vec * 8 + i) + 1) >> shp;
> > + int b, r, g = (px0 & maskgx) + (px1 & maskgx);
> > + int rb = px0 + px1 - g;
> > +
> > + b = (rb & maskb) >> shb;
> > + if (shp ||
> > + origin == AV_PIX_FMT_BGR565LE || origin == AV_PIX_FMT_BGR565BE ||
> > + origin == AV_PIX_FMT_RGB565LE || origin == AV_PIX_FMT_RGB565BE) {
> > + g >>= shg;
> > + } else {
> > + g = (g & maskg) >> shg;
> > + }
> > + r = (rb & maskr) >> shr;
> > +
> > + dstU[num_vec * 8 + i] = (ru * r + gu * g + bu * b + (unsigned)rnd) >> ((S)-6+1);
> > + dstV[num_vec * 8 + i] = (rv * r + gv * g + bv * b + (unsigned)rnd) >> ((S)-6+1);
> > + }
> > + }
> > +}
> > +
> > +#undef input_pixel
> > +
> > +#pragma pop_macro("r")
> > +#pragma pop_macro("b")
> > +#pragma pop_macro("input_pixel")
> > +
> > --
> > 2.4.11
> >
> > _______________________________________________
> > ffmpeg-devel mailing list
> > ffmpeg-devel at ffmpeg.org
> > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> _______________________________________________
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