Revert "PPC64: Add versions of functions in libswscale/input.c optimized for POWER8 VSX SIMD."

This reverts commit 1df908f33f658979b32599489ca6f1a39821013c. The expected
performance improvements are essentially non-existent.

4 files changed, 0 insertions, 442 deletions

diff --git a/libswscale/ppc/Makefile b/libswscale/ppc/Makefile
index 2482893287..d1b596eb3f 100644
--- a/libswscale/ppc/Makefile
+++ b/libswscale/ppc/Makefile
@@ -1,4 +1,3 @@
 OBJS += ppc/swscale_altivec.o                                           \
-        ppc/input_vsx.o                                                 \
         ppc/yuv2rgb_altivec.o                                           \
         ppc/yuv2yuv_altivec.o                                           \
diff --git a/libswscale/ppc/input_vsx.c b/libswscale/ppc/input_vsx.c
deleted file mode 100644
index d977a3275c..0000000000
--- a/libswscale/ppc/input_vsx.c
+++ /dev/null
@@ -1,437 +0,0 @@
-/*
- * Copyright (C) 2016 Dan Parrot <dan.parrot@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
- */
-
-#include <math.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "libavutil/avutil.h"
-#include "libavutil/bswap.h"
-#include "libavutil/cpu.h"
-#include "libavutil/intreadwrite.h"
-#include "libavutil/mathematics.h"
-#include "libavutil/pixdesc.h"
-#include "libavutil/avassert.h"
-#include "config.h"
-#include "libswscale/rgb2rgb.h"
-#include "libswscale/swscale.h"
-#include "libswscale/swscale_internal.h"
-
-#if HAVE_VSX
-
-static void abgrToA_c_vsx(uint8_t *_dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2,
-                          int width, uint32_t *unused)
-{
-    int16_t *dst = (int16_t *)_dst;
-    int i, width_adj, frag_len;
-
-    uintptr_t src_addr = (uintptr_t)src;
-    uintptr_t dst_addr = (uintptr_t)dst;
-
-    // compute integral number of vector-length items and length of final fragment
-    width_adj = width >> 3;
-    width_adj = width_adj << 3;
-    frag_len = width - width_adj;
-
-    for ( i = 0; i < width_adj; i += 8) {
-        vector int v_rd0 = vec_vsx_ld(0, (int *)src_addr);
-        vector int v_rd1 = vec_vsx_ld(0, (int *)(src_addr + 16));
-
-        v_rd0 = vec_and(v_rd0, vec_splats(0x0ff));
-        v_rd1 = vec_and(v_rd1, vec_splats(0x0ff));
-
-        v_rd0 = vec_sl(v_rd0, vec_splats((unsigned)6));
-        v_rd1 = vec_sl(v_rd1, vec_splats((unsigned)6));
-
-        vector int v_dst = vec_perm(v_rd0, v_rd1, ((vector unsigned char)
-                                                   {0, 1, 4, 5, 8, 9, 12, 13, 16, 17, 20, 21, 24, 25, 28, 29}));
-        vec_vsx_st((vector unsigned char)v_dst, 0, (unsigned char *)dst_addr);
-
-        src_addr += 32;
-        dst_addr += 16;
-    }
-
-    for (i=width_adj; i< width_adj + frag_len; i++) {
-        dst[i]= src[4*i]<<6;
-    }
-}
-
-static void rgbaToA_c_vsx(uint8_t *_dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2,
-                          int width, uint32_t *unused)
-{
-    int16_t *dst = (int16_t *)_dst;
-    int i, width_adj, frag_len;
-
-    uintptr_t src_addr = (uintptr_t)src;
-    uintptr_t dst_addr = (uintptr_t)dst;
-
-    // compute integral number of vector-length items and length of final fragment
-    width_adj = width >> 3;
-    width_adj = width_adj << 3;
-    frag_len = width - width_adj;
-
-    for ( i = 0; i < width_adj; i += 8) {
-        vector int v_rd0 = vec_vsx_ld(0, (int *)src_addr);
-        vector int v_rd1 = vec_vsx_ld(0, (int *)(src_addr + 16));
-
-        v_rd0 = vec_sld(v_rd0, v_rd0, 13);
-        v_rd1 = vec_sld(v_rd1, v_rd1, 13);
-
-        v_rd0 = vec_and(v_rd0, vec_splats(0x0ff));
-        v_rd1 = vec_and(v_rd1, vec_splats(0x0ff));
-
-        v_rd0 = vec_sl(v_rd0, vec_splats((unsigned)6));
-        v_rd1 = vec_sl(v_rd1, vec_splats((unsigned)6));
-
-        vector int v_dst = vec_perm(v_rd0, v_rd1, ((vector unsigned char)
-                                                   {0, 1, 4, 5, 8, 9, 12, 13, 16, 17, 20, 21, 24, 25, 28, 29}));
-        vec_vsx_st((vector unsigned char)v_dst, 0, (unsigned char *)dst_addr);
-
-        src_addr += 32;
-        dst_addr += 16;
-    }
-
-    for (i=width_adj; i< width_adj + frag_len; i++) {
-        dst[i]= src[4*i+3]<<6;
-    }
-}
-
-static void yuy2ToY_c_vsx(uint8_t *dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2,  int width,
-                          uint32_t *unused)
-{
-    int i, width_adj, frag_len;
-
-    uintptr_t src_addr = (uintptr_t)src;
-    uintptr_t dst_addr = (uintptr_t)dst;
-
-    // compute integral number of vector-length items and length of final fragment
-    width_adj = width >> 4;
-    width_adj = width_adj << 4;
-    frag_len = width - width_adj;
-
-    for ( i = 0; i < width_adj; i += 16) {
-        vector unsigned char v_rd0 = vec_vsx_ld(0, (unsigned char *)src_addr);
-        vector unsigned char v_rd1 = vec_vsx_ld(0, (unsigned char *)(src_addr + 16));
-
-        vector unsigned char v_dst = vec_perm(v_rd0, v_rd1, ((vector unsigned char)
-                                                             {0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30}));
-        vec_vsx_st((vector unsigned char)v_dst, 0, (unsigned char *)dst_addr);
-
-        src_addr += 32;
-        dst_addr += 16;
-    }
-
-    for (i=width_adj; i< width_adj + frag_len; i++) {
-        dst[i] = src[2 * i];
-    }
-}
-
-static void yuy2ToUV_c_vsx(uint8_t *dstU, uint8_t *dstV, const uint8_t *unused0, const uint8_t *src1,
-                           const uint8_t *src2, int width, uint32_t *unused)
-{
-    int i, width_adj, frag_len;
-
-    uintptr_t src1_addr = (uintptr_t)src1;
-    uintptr_t dstu_addr = (uintptr_t)dstU;
-    uintptr_t dstv_addr = (uintptr_t)dstV;
-
-    // compute integral number of vector-length items and length of final fragment
-    width_adj = width >> 4;
-    width_adj = width_adj << 4;
-    frag_len = width - width_adj;
-
-    for ( i = 0; i < width_adj; i += 16) {
-        vector unsigned char v_src1_0 = vec_vsx_ld(0, (unsigned char *)src1_addr);
-        vector unsigned char v_src1_1 = vec_vsx_ld(0, (unsigned char *)(src1_addr + 16));
-        vector unsigned char v_src1_2 = vec_vsx_ld(0, (unsigned char *)(src1_addr + 32));
-        vector unsigned char v_src1_3 = vec_vsx_ld(0, (unsigned char *)(src1_addr + 48));
-
-        vector unsigned char v_dstu = vec_perm(v_src1_0, v_src1_1,
-                                              ((vector unsigned char)
-                                               {1, 5, 9, 13, 17, 21, 25, 29, 1, 5, 9, 13, 17, 21, 25, 29}));
-        vector unsigned char v_dstv = vec_perm(v_src1_0, v_src1_1,
-                                              ((vector unsigned char)
-                                               {3, 7, 11, 15, 19, 23, 27, 31, 1, 5, 9, 13, 17, 21, 25, 29}));
-
-        v_dstu = vec_perm(v_dstu, v_src1_2,((vector unsigned char)
-                                            {0, 1, 2, 3, 4, 5, 6, 7, 17, 21, 25, 29, 17, 21, 25, 29}));
-        v_dstv = vec_perm(v_dstv, v_src1_2,((vector unsigned char)
-                                            {0, 1, 2, 3, 4, 5, 6, 7, 19, 23, 27, 31, 17, 21, 25, 29}));
-
-        v_dstu = vec_perm(v_dstu, v_src1_3,((vector unsigned char)
-                                          {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 17, 21, 25, 29}));
-        v_dstv = vec_perm(v_dstv, v_src1_3,((vector unsigned char)
-                                          {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 19, 23, 27, 31}));
-
-        vec_vsx_st((vector unsigned char)v_dstu, 0, (unsigned char *)dstu_addr);
-        vec_vsx_st((vector unsigned char)v_dstv, 0, (unsigned char *)dstv_addr);
-
-        src1_addr += 64;
-        dstu_addr += 16;
-        dstv_addr += 16;
-    }
-
-    for (i=width_adj; i< width_adj + frag_len; i++) {
-        dstU[i] = src1[4 * i + 1];
-        dstV[i] = src1[4 * i + 3];
-    }
-    av_assert1(src1 == src2);
-}
-
-static void yvy2ToUV_c_vsx(uint8_t *dstU, uint8_t *dstV, const uint8_t *unused0, const uint8_t *src1,
-                           const uint8_t *src2, int width, uint32_t *unused)
-{
-    int i, width_adj, frag_len;
-
-    uintptr_t src1_addr = (uintptr_t)src1;
-    uintptr_t dstu_addr = (uintptr_t)dstU;
-    uintptr_t dstv_addr = (uintptr_t)dstV;
-
-    // compute integral number of vector-length items and length of final fragment
-    width_adj = width >> 4;
-    width_adj = width_adj << 4;
-    frag_len = width - width_adj;
-
-    for ( i = 0; i < width_adj; i += 16) {
-        vector unsigned char v_src1_0 = vec_vsx_ld(0, (unsigned char *)src1_addr);
-        vector unsigned char v_src1_1 = vec_vsx_ld(0, (unsigned char *)(src1_addr + 16));
-        vector unsigned char v_src1_2 = vec_vsx_ld(0, (unsigned char *)(src1_addr + 32));
-        vector unsigned char v_src1_3 = vec_vsx_ld(0, (unsigned char *)(src1_addr + 48));
-
-        vector unsigned char v_dstv = vec_perm(v_src1_0, v_src1_1,
-                                              ((vector unsigned char)
-                                               {1, 5, 9, 13, 17, 21, 25, 29, 1, 5, 9, 13, 17, 21, 25, 29}));
-        vector unsigned char v_dstu = vec_perm(v_src1_0, v_src1_1,
-                                              ((vector unsigned char)
-                                               {3, 7, 11, 15, 19, 23, 27, 31, 1, 5, 9, 13, 17, 21, 25, 29}));
-
-        v_dstv = vec_perm(v_dstv, v_src1_2,((vector unsigned char)
-                                            {0, 1, 2, 3, 4, 5, 6, 7, 17, 21, 25, 29, 17, 21, 25, 29}));
-        v_dstu = vec_perm(v_dstu, v_src1_2,((vector unsigned char)
-                                            {0, 1, 2, 3, 4, 5, 6, 7, 19, 23, 27, 31, 17, 21, 25, 29}));
-
-        v_dstv = vec_perm(v_dstv, v_src1_3,((vector unsigned char)
-                                          {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 17, 21, 25, 29}));
-        v_dstu = vec_perm(v_dstu, v_src1_3,((vector unsigned char)
-                                          {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 19, 23, 27, 31}));
-
-        vec_vsx_st((vector unsigned char)v_dstu, 0, (unsigned char *)dstu_addr);
-        vec_vsx_st((vector unsigned char)v_dstv, 0, (unsigned char *)dstv_addr);
-
-        src1_addr += 64;
-        dstu_addr += 16;
-        dstv_addr += 16;
-    }
-
-    for (i=width_adj; i< width_adj + frag_len; i++) {
-        dstV[i] = src1[4 * i + 1];
-        dstU[i] = src1[4 * i + 3];
-    }
-    av_assert1(src1 == src2);
-}
-
-static void uyvyToY_c_vsx(uint8_t *dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2,  int width,
-                          uint32_t *unused)
-{
-    int i, width_adj, frag_len;
-
-    uintptr_t src_addr = (uintptr_t)src;
-    uintptr_t dst_addr = (uintptr_t)dst;
-
-    // compute integral number of vector-length items and length of final fragment
-    width_adj = width >> 4;
-    width_adj = width_adj << 4;
-    frag_len = width - width_adj;
-
-    for ( i = 0; i < width_adj; i += 16) {
-        vector unsigned char v_rd0 = vec_vsx_ld(0, (unsigned char *)src_addr);
-        vector unsigned char v_rd1 = vec_vsx_ld(0, (unsigned char *)(src_addr + 16));
-
-        vector unsigned char v_dst = vec_perm(v_rd0, v_rd1, ((vector unsigned char)
-                                                             {1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31}));
-        vec_vsx_st((vector unsigned char)v_dst, 0, (unsigned char *)dst_addr);
-
-        src_addr += 32;
-        dst_addr += 16;
-    }
-
-    for (i=width_adj; i< width_adj + frag_len; i++) {
-        dst[i] = src[2 * i + 1];
-    }
-}
-
-static void uyvyToUV_c_vsx(uint8_t *dstU, uint8_t *dstV, const uint8_t *unused0, const uint8_t *src1,
-                           const uint8_t *src2, int width, uint32_t *unused)
-{
-    int i, width_adj, frag_len;
-
-    uintptr_t src1_addr = (uintptr_t)src1;
-    uintptr_t dstu_addr = (uintptr_t)dstU;
-    uintptr_t dstv_addr = (uintptr_t)dstV;
-
-    // compute integral number of vector-length items and length of final fragment
-    width_adj = width >> 4;
-    width_adj = width_adj << 4;
-    frag_len = width - width_adj;
-
-    for ( i = 0; i < width_adj; i += 16) {
-        vector unsigned char v_src1_0 = vec_vsx_ld(0, (unsigned char *)src1_addr);
-        vector unsigned char v_src1_1 = vec_vsx_ld(0, (unsigned char *)(src1_addr + 16));
-        vector unsigned char v_src1_2 = vec_vsx_ld(0, (unsigned char *)(src1_addr + 32));
-        vector unsigned char v_src1_3 = vec_vsx_ld(0, (unsigned char *)(src1_addr + 48));
-
-        vector unsigned char v_dstu = vec_perm(v_src1_0, v_src1_1,
-                                              ((vector unsigned char)
-                                               {0, 4, 8, 12, 16, 20, 24, 28, 1, 5, 9, 13, 17, 21, 25, 29}));
-        vector unsigned char v_dstv = vec_perm(v_src1_0, v_src1_1,
-                                              ((vector unsigned char)
-                                               {2, 6, 10, 14, 18, 22, 26, 30, 1, 5, 9, 13, 17, 21, 25, 29}));
-
-        v_dstu = vec_perm(v_dstu, v_src1_2,((vector unsigned char)
-                                            {0, 1, 2, 3, 4, 5, 6, 7, 16, 20, 24, 28, 17, 21, 25, 29}));
-        v_dstv = vec_perm(v_dstv, v_src1_2,((vector unsigned char)
-                                            {0, 1, 2, 3, 4, 5, 6, 7, 18, 22, 26, 30, 17, 21, 25, 29}));
-
-        v_dstu = vec_perm(v_dstu, v_src1_3,((vector unsigned char)
-                                          {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 16, 20, 24, 28}));
-        v_dstv = vec_perm(v_dstv, v_src1_3,((vector unsigned char)
-                                          {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 18, 22, 26, 30}));
-
-        vec_vsx_st((vector unsigned char)v_dstu, 0, (unsigned char *)dstu_addr);
-        vec_vsx_st((vector unsigned char)v_dstv, 0, (unsigned char *)dstv_addr);
-
-        src1_addr += 64;
-        dstu_addr += 16;
-        dstv_addr += 16;
-    }
-
-    for (i=width_adj; i< width_adj + frag_len; i++) {
-        dstU[i] = src1[4 * i + 0];
-        dstV[i] = src1[4 * i + 2];
-    }
-    av_assert1(src1 == src2);
-}
-
-static av_always_inline void nvXXtoUV_c_vsx(uint8_t *dst1, uint8_t *dst2, const uint8_t *src, int width)
-{
-    int i, width_adj, frag_len;
-
-    uintptr_t src_addr  = (uintptr_t)src;
-    uintptr_t dst1_addr = (uintptr_t)dst1;
-    uintptr_t dst2_addr = (uintptr_t)dst2;
-
-    // compute integral number of vector-length items and length of final fragment
-    width_adj = width >> 4;
-    width_adj = width_adj << 4;
-    frag_len = width - width_adj;
-
-    for ( i = 0; i < width_adj; i += 16) {
-        vector unsigned char v_rd0 = vec_vsx_ld(0, (unsigned char *)src_addr);
-        vector unsigned char v_rd1 = vec_vsx_ld(0, (unsigned char *)(src_addr + 16));
-
-        vector unsigned char v_dst1 = vec_perm(v_rd0, v_rd1, ((vector unsigned char)
-                                                              {0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30}));
-        vector unsigned char v_dst2 = vec_perm(v_rd0, v_rd1, ((vector unsigned char)
-                                                              {1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31}));
-
-        vec_vsx_st((vector unsigned char)v_dst1, 0, (unsigned char *)dst1_addr);
-        vec_vsx_st((vector unsigned char)v_dst2, 0, (unsigned char *)dst2_addr);
-
-        src_addr    += 32;
-        dst1_addr   += 16;
-        dst2_addr   += 16;
-    }
-
-    for (i=width_adj; i< width_adj + frag_len; i++) {
-        dst1[i] = src[2 * i + 0];
-        dst2[i] = src[2 * i + 1];
-    }
-}
-
-static void nv12ToUV_c_vsx(uint8_t *dstU, uint8_t *dstV,
-                           const uint8_t *unused0, const uint8_t *src1, const uint8_t *src2,
-                           int width, uint32_t *unused)
-{
-    nvXXtoUV_c_vsx(dstU, dstV, src1, width);
-}
-
-static void nv21ToUV_c_vsx(uint8_t *dstU, uint8_t *dstV,
-                           const uint8_t *unused0, const uint8_t *src1, const uint8_t *src2,
-                           int width, uint32_t *unused)
-{
-    nvXXtoUV_c_vsx(dstV, dstU, src1, width);
-}
-
-#endif /* HAVE_VSX */
-
-av_cold void ff_sws_init_input_funcs_vsx(SwsContext *c)
-{
-#if HAVE_VSX
-
-    enum AVPixelFormat srcFormat = c->srcFormat;
-
-    switch (srcFormat) {
-    case AV_PIX_FMT_YUYV422:
-        c->chrToYV12 = yuy2ToUV_c_vsx;
-        break;
-    case AV_PIX_FMT_YVYU422:
-        c->chrToYV12 = yvy2ToUV_c_vsx;
-        break;
-    case AV_PIX_FMT_UYVY422:
-        c->chrToYV12 = uyvyToUV_c_vsx;
-        break;
-    case AV_PIX_FMT_NV12:
-        c->chrToYV12 = nv12ToUV_c_vsx;
-        break;
-    case AV_PIX_FMT_NV21:
-        c->chrToYV12 = nv21ToUV_c_vsx;
-        break;
-    }
-
-    switch (srcFormat) {
-    case AV_PIX_FMT_YUYV422:
-    case AV_PIX_FMT_YVYU422:
-    case AV_PIX_FMT_YA8:
-        c->lumToYV12 = yuy2ToY_c_vsx;
-        break;
-    case AV_PIX_FMT_UYVY422:
-        c->lumToYV12 = uyvyToY_c_vsx;
-        break;
-    }
-
-    if (c->needAlpha) {
-        switch (srcFormat) {
-        case AV_PIX_FMT_BGRA:
-        case AV_PIX_FMT_RGBA:
-            c->alpToYV12 = rgbaToA_c_vsx;
-            break;
-        case AV_PIX_FMT_ABGR:
-        case AV_PIX_FMT_ARGB:
-            c->alpToYV12 = abgrToA_c_vsx;
-            break;
-        case AV_PIX_FMT_YA8:
-            c->alpToYV12 = uyvyToY_c_vsx;
-            break;
-        }
-    }
-
-#endif /* HAVE_VSX */
-}
diff --git a/libswscale/swscale.c b/libswscale/swscale.c
index 3e4d177eae..bbea0feeab 100644
--- a/libswscale/swscale.c
+++ b/libswscale/swscale.c
@@ -566,9 +566,6 @@ static av_cold void sws_init_swscale(SwsContext *c)
 
     ff_sws_init_input_funcs(c);
 
-    if (HAVE_VSX && (!HAVE_BIGENDIAN)) {
-        ff_sws_init_input_funcs_vsx(c);
-    }
 
     if (c->srcBpc == 8) {
         if (c->dstBpc <= 14) {
diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h
index fc49894b53..54cd85cce3 100644
--- a/libswscale/swscale_internal.h
+++ b/libswscale/swscale_internal.h
@@ -881,7 +881,6 @@ void ff_get_unscaled_swscale_aarch64(SwsContext *c);
 SwsFunc ff_getSwsFunc(SwsContext *c);
 
 void ff_sws_init_input_funcs(SwsContext *c);
-void ff_sws_init_input_funcs_vsx(SwsContext *c);
 void ff_sws_init_output_funcs(SwsContext *c,
                               yuv2planar1_fn *yuv2plane1,
                               yuv2planarX_fn *yuv2planeX,