Remove old scaler.

Originally committed as revision 17786 to svn://svn.ffmpeg.org/ffmpeg/trunk

2 files changed, 0 insertions, 168 deletions

diff --git a/libavcodec/ppc/imgresample_altivec.c b/libavcodec/ppc/imgresample_altivec.c
deleted file mode 100644
index 02d08aee4c..0000000000
--- a/libavcodec/ppc/imgresample_altivec.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * High quality image resampling with polyphase filters
- * Copyright (c) 2001 Fabrice Bellard
- *
- * 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
- */
-
-/**
- * @file libavcodec/ppc/imgresample_altivec.c
- * High quality image resampling with polyphase filters - AltiVec bits
- */
-
-#include "util_altivec.h"
-#define FILTER_BITS   8
-
-typedef         union {
-    vector signed short v;
-    signed short s[8];
-} vec_ss;
-
-void v_resample16_altivec(uint8_t *dst, int dst_width, const uint8_t *src,
-                          int wrap, int16_t *filter)
-{
-    int sum, i;
-    const uint8_t *s;
-    vector unsigned char *tv, tmp, dstv, zero;
-    vec_ss srchv[4], srclv[4], fv[4];
-    vector signed short zeros, sumhv, sumlv;
-    s = src;
-
-    for(i=0;i<4;i++) {
-        /*
-           The vec_madds later on does an implicit >>15 on the result.
-           Since FILTER_BITS is 8, and we have 15 bits of magnitude in
-           a signed short, we have just enough bits to pre-shift our
-           filter constants <<7 to compensate for vec_madds.
-        */
-        fv[i].s[0] = filter[i] << (15-FILTER_BITS);
-        fv[i].v = vec_splat(fv[i].v, 0);
-    }
-
-    zero = vec_splat_u8(0);
-    zeros = vec_splat_s16(0);
-
-
-    /*
-       When we're resampling, we'd ideally like both our input buffers,
-       and output buffers to be 16-byte aligned, so we can do both aligned
-       reads and writes. Sadly we can't always have this at the moment, so
-       we opt for aligned writes, as unaligned writes have a huge overhead.
-       To do this, do enough scalar resamples to get dst 16-byte aligned.
-    */
-    i = (-(int)dst) & 0xf;
-    while(i>0) {
-        sum = s[0 * wrap] * filter[0] +
-        s[1 * wrap] * filter[1] +
-        s[2 * wrap] * filter[2] +
-        s[3 * wrap] * filter[3];
-        sum = sum >> FILTER_BITS;
-        if (sum<0) sum = 0; else if (sum>255) sum=255;
-        dst[0] = sum;
-        dst++;
-        s++;
-        dst_width--;
-        i--;
-    }
-
-    /* Do our altivec resampling on 16 pixels at once. */
-    while(dst_width>=16) {
-        /* Read 16 (potentially unaligned) bytes from each of
-           4 lines into 4 vectors, and split them into shorts.
-           Interleave the multipy/accumulate for the resample
-           filter with the loads to hide the 3 cycle latency
-           the vec_madds have. */
-        tv = (vector unsigned char *) &s[0 * wrap];
-        tmp = vec_perm(tv[0], tv[1], vec_lvsl(0, &s[i * wrap]));
-        srchv[0].v = (vector signed short) vec_mergeh(zero, tmp);
-        srclv[0].v = (vector signed short) vec_mergel(zero, tmp);
-        sumhv = vec_madds(srchv[0].v, fv[0].v, zeros);
-        sumlv = vec_madds(srclv[0].v, fv[0].v, zeros);
-
-        tv = (vector unsigned char *) &s[1 * wrap];
-        tmp = vec_perm(tv[0], tv[1], vec_lvsl(0, &s[1 * wrap]));
-        srchv[1].v = (vector signed short) vec_mergeh(zero, tmp);
-        srclv[1].v = (vector signed short) vec_mergel(zero, tmp);
-        sumhv = vec_madds(srchv[1].v, fv[1].v, sumhv);
-        sumlv = vec_madds(srclv[1].v, fv[1].v, sumlv);
-
-        tv = (vector unsigned char *) &s[2 * wrap];
-        tmp = vec_perm(tv[0], tv[1], vec_lvsl(0, &s[2 * wrap]));
-        srchv[2].v = (vector signed short) vec_mergeh(zero, tmp);
-        srclv[2].v = (vector signed short) vec_mergel(zero, tmp);
-        sumhv = vec_madds(srchv[2].v, fv[2].v, sumhv);
-        sumlv = vec_madds(srclv[2].v, fv[2].v, sumlv);
-
-        tv = (vector unsigned char *) &s[3 * wrap];
-        tmp = vec_perm(tv[0], tv[1], vec_lvsl(0, &s[3 * wrap]));
-        srchv[3].v = (vector signed short) vec_mergeh(zero, tmp);
-        srclv[3].v = (vector signed short) vec_mergel(zero, tmp);
-        sumhv = vec_madds(srchv[3].v, fv[3].v, sumhv);
-        sumlv = vec_madds(srclv[3].v, fv[3].v, sumlv);
-
-        /* Pack the results into our destination vector,
-           and do an aligned write of that back to memory. */
-        dstv = vec_packsu(sumhv, sumlv) ;
-        vec_st(dstv, 0, (vector unsigned char *) dst);
-
-        dst+=16;
-        s+=16;
-        dst_width-=16;
-    }
-
-    /* If there are any leftover pixels, resample them
-       with the slow scalar method. */
-    while(dst_width>0) {
-        sum = s[0 * wrap] * filter[0] +
-        s[1 * wrap] * filter[1] +
-        s[2 * wrap] * filter[2] +
-        s[3 * wrap] * filter[3];
-        sum = sum >> FILTER_BITS;
-        if (sum<0) sum = 0; else if (sum>255) sum=255;
-        dst[0] = sum;
-        dst++;
-        s++;
-        dst_width--;
-    }
-}
-
diff --git a/libavcodec/ppc/imgresample_altivec.h b/libavcodec/ppc/imgresample_altivec.h
deleted file mode 100644
index 27b85f9a84..0000000000
--- a/libavcodec/ppc/imgresample_altivec.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * 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
- */
-
-#ifndef AVCODEC_PPC_IMGRESAMPLE_ALTIVEC_H
-#define AVCODEC_PPC_IMGRESAMPLE_ALTIVEC_H
-
-#include <stdint.h>
-
-void v_resample16_altivec(uint8_t *dst, int dst_width, const uint8_t *src,
-                          int wrap, int16_t *filter);
-#endif /* AVCODEC_PPC_IMGRESAMPLE_ALTIVEC_H */