/* * 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 "config.h" #include <stdint.h> #include "libavutil/attributes.h" #include "libavutil/cpu.h" #include "libavutil/ppc/cpu.h" #include "libavutil/ppc/util_altivec.h" #include "libavcodec/mpegvideoencdsp.h" #if HAVE_ALTIVEC #if HAVE_VSX static int pix_norm1_altivec(const uint8_t *pix, int line_size) { int i, s = 0; const vector unsigned int zero = (const vector unsigned int) vec_splat_u32(0); vector unsigned int sv = (vector unsigned int) vec_splat_u32(0); vector signed int sum; for (i = 0; i < 16; i++) { /* Read the potentially unaligned pixels. */ //vector unsigned char pixl = vec_ld(0, pix); //vector unsigned char pixr = vec_ld(15, pix); //vector unsigned char pixv = vec_perm(pixl, pixr, perm); vector unsigned char pixv = vec_vsx_ld(0, pix); /* Square the values, and add them to our sum. */ sv = vec_msum(pixv, pixv, sv); pix += line_size; } /* Sum up the four partial sums, and put the result into s. */ sum = vec_sums((vector signed int) sv, (vector signed int) zero); sum = vec_splat(sum, 3); vec_ste(sum, 0, &s); return s; } #else static int pix_norm1_altivec(const uint8_t *pix, int line_size) { int i, s = 0; const vector unsigned int zero = (const vector unsigned int) vec_splat_u32(0); vector unsigned char perm = vec_lvsl(0, pix); vector unsigned int sv = (vector unsigned int) vec_splat_u32(0); vector signed int sum; for (i = 0; i < 16; i++) { /* Read the potentially unaligned pixels. */ vector unsigned char pixl = vec_ld(0, pix); vector unsigned char pixr = vec_ld(15, pix); vector unsigned char pixv = vec_perm(pixl, pixr, perm); /* Square the values, and add them to our sum. */ sv = vec_msum(pixv, pixv, sv); pix += line_size; } /* Sum up the four partial sums, and put the result into s. */ sum = vec_sums((vector signed int) sv, (vector signed int) zero); sum = vec_splat(sum, 3); vec_ste(sum, 0, &s); return s; } #endif /* HAVE_VSX */ #if HAVE_VSX static int pix_sum_altivec(const uint8_t *pix, int line_size) { int i, s; const vector unsigned int zero = (const vector unsigned int) vec_splat_u32(0); vector unsigned int sad = (vector unsigned int) vec_splat_u32(0); vector signed int sumdiffs; for (i = 0; i < 16; i++) { /* Read the potentially unaligned 16 pixels into t1. */ //vector unsigned char pixl = vec_ld(0, pix); //vector unsigned char pixr = vec_ld(15, pix); //vector unsigned char t1 = vec_perm(pixl, pixr, perm); vector unsigned char t1 = vec_vsx_ld(0, pix); /* Add each 4 pixel group together and put 4 results into sad. */ sad = vec_sum4s(t1, sad); pix += line_size; } /* Sum up the four partial sums, and put the result into s. */ sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero); sumdiffs = vec_splat(sumdiffs, 3); vec_ste(sumdiffs, 0, &s); return s; } #else static int pix_sum_altivec(const uint8_t *pix, int line_size) { int i, s; const vector unsigned int zero = (const vector unsigned int) vec_splat_u32(0); vector unsigned char perm = vec_lvsl(0, pix); vector unsigned int sad = (vector unsigned int) vec_splat_u32(0); vector signed int sumdiffs; for (i = 0; i < 16; i++) { /* Read the potentially unaligned 16 pixels into t1. */ vector unsigned char pixl = vec_ld(0, pix); vector unsigned char pixr = vec_ld(15, pix); vector unsigned char t1 = vec_perm(pixl, pixr, perm); /* Add each 4 pixel group together and put 4 results into sad. */ sad = vec_sum4s(t1, sad); pix += line_size; } /* Sum up the four partial sums, and put the result into s. */ sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero); sumdiffs = vec_splat(sumdiffs, 3); vec_ste(sumdiffs, 0, &s); return s; } #endif /* HAVE_VSX */ #endif /* HAVE_ALTIVEC */ av_cold void ff_mpegvideoencdsp_init_ppc(MpegvideoEncDSPContext *c, AVCodecContext *avctx) { #if HAVE_ALTIVEC if (!PPC_ALTIVEC(av_get_cpu_flags())) return; c->pix_norm1 = pix_norm1_altivec; c->pix_sum = pix_sum_altivec; #endif /* HAVE_ALTIVEC */ }