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ffmpeg / libavcodec / ppc / h264_altivec.c @ 8dbe5856

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/*
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 * Copyright (c) 2004 Romain Dolbeau <romain@dolbeau.org>
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#include "libavutil/cpu.h"
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#include "libavcodec/dsputil.h"
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#include "libavcodec/h264data.h"
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#include "libavcodec/h264dsp.h"
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#include "dsputil_altivec.h"
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#include "util_altivec.h"
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#include "types_altivec.h"
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#define PUT_OP_U8_ALTIVEC(d, s, dst) d = s
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#define AVG_OP_U8_ALTIVEC(d, s, dst) d = vec_avg(dst, s)
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#define OP_U8_ALTIVEC                          PUT_OP_U8_ALTIVEC
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#define PREFIX_h264_chroma_mc8_altivec         put_h264_chroma_mc8_altivec
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#define PREFIX_h264_chroma_mc8_num             altivec_put_h264_chroma_mc8_num
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#define PREFIX_h264_qpel16_h_lowpass_altivec   put_h264_qpel16_h_lowpass_altivec
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#define PREFIX_h264_qpel16_h_lowpass_num       altivec_put_h264_qpel16_h_lowpass_num
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#define PREFIX_h264_qpel16_v_lowpass_altivec   put_h264_qpel16_v_lowpass_altivec
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#define PREFIX_h264_qpel16_v_lowpass_num       altivec_put_h264_qpel16_v_lowpass_num
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#define PREFIX_h264_qpel16_hv_lowpass_altivec  put_h264_qpel16_hv_lowpass_altivec
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#define PREFIX_h264_qpel16_hv_lowpass_num      altivec_put_h264_qpel16_hv_lowpass_num
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#include "h264_template_altivec.c"
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#undef OP_U8_ALTIVEC
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#undef PREFIX_h264_chroma_mc8_altivec
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#undef PREFIX_h264_chroma_mc8_num
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#undef PREFIX_h264_qpel16_h_lowpass_altivec
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#undef PREFIX_h264_qpel16_h_lowpass_num
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#undef PREFIX_h264_qpel16_v_lowpass_altivec
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#undef PREFIX_h264_qpel16_v_lowpass_num
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#undef PREFIX_h264_qpel16_hv_lowpass_altivec
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#undef PREFIX_h264_qpel16_hv_lowpass_num
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#define OP_U8_ALTIVEC                          AVG_OP_U8_ALTIVEC
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#define PREFIX_h264_chroma_mc8_altivec         avg_h264_chroma_mc8_altivec
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#define PREFIX_h264_chroma_mc8_num             altivec_avg_h264_chroma_mc8_num
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#define PREFIX_h264_qpel16_h_lowpass_altivec   avg_h264_qpel16_h_lowpass_altivec
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#define PREFIX_h264_qpel16_h_lowpass_num       altivec_avg_h264_qpel16_h_lowpass_num
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#define PREFIX_h264_qpel16_v_lowpass_altivec   avg_h264_qpel16_v_lowpass_altivec
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#define PREFIX_h264_qpel16_v_lowpass_num       altivec_avg_h264_qpel16_v_lowpass_num
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#define PREFIX_h264_qpel16_hv_lowpass_altivec  avg_h264_qpel16_hv_lowpass_altivec
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#define PREFIX_h264_qpel16_hv_lowpass_num      altivec_avg_h264_qpel16_hv_lowpass_num
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#include "h264_template_altivec.c"
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#undef OP_U8_ALTIVEC
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#undef PREFIX_h264_chroma_mc8_altivec
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#undef PREFIX_h264_chroma_mc8_num
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#undef PREFIX_h264_qpel16_h_lowpass_altivec
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#undef PREFIX_h264_qpel16_h_lowpass_num
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#undef PREFIX_h264_qpel16_v_lowpass_altivec
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#undef PREFIX_h264_qpel16_v_lowpass_num
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#undef PREFIX_h264_qpel16_hv_lowpass_altivec
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#undef PREFIX_h264_qpel16_hv_lowpass_num
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#define H264_MC(OPNAME, SIZE, CODETYPE) \
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static void OPNAME ## h264_qpel ## SIZE ## _mc00_ ## CODETYPE (uint8_t *dst, uint8_t *src, int stride){\
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    OPNAME ## pixels ## SIZE ## _ ## CODETYPE(dst, src, stride, SIZE);\
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}\
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\
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static void OPNAME ## h264_qpel ## SIZE ## _mc10_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){ \
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    DECLARE_ALIGNED(16, uint8_t, half)[SIZE*SIZE];\
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    put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
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    OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src, half, stride, stride, SIZE);\
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}\
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\
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static void OPNAME ## h264_qpel ## SIZE ## _mc20_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
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    OPNAME ## h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(dst, src, stride, stride);\
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}\
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\
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static void OPNAME ## h264_qpel ## SIZE ## _mc30_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
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    DECLARE_ALIGNED(16, uint8_t, half)[SIZE*SIZE];\
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    put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
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    OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src+1, half, stride, stride, SIZE);\
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}\
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\
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static void OPNAME ## h264_qpel ## SIZE ## _mc01_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
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    DECLARE_ALIGNED(16, uint8_t, half)[SIZE*SIZE];\
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    put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
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    OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src, half, stride, stride, SIZE);\
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}\
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\
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static void OPNAME ## h264_qpel ## SIZE ## _mc02_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
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    OPNAME ## h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(dst, src, stride, stride);\
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}\
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\
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static void OPNAME ## h264_qpel ## SIZE ## _mc03_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
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    DECLARE_ALIGNED(16, uint8_t, half)[SIZE*SIZE];\
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    put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
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    OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src+stride, half, stride, stride, SIZE);\
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}\
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\
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static void OPNAME ## h264_qpel ## SIZE ## _mc11_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
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    DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
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    DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
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    put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src, SIZE, stride);\
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    put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src, SIZE, stride);\
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    OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
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}\
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\
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static void OPNAME ## h264_qpel ## SIZE ## _mc31_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
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    DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
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    DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
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    put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src, SIZE, stride);\
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    put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src+1, SIZE, stride);\
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    OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
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}\
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\
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static void OPNAME ## h264_qpel ## SIZE ## _mc13_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
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    DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
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    DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
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    put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src + stride, SIZE, stride);\
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    put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src, SIZE, stride);\
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    OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
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}\
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\
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static void OPNAME ## h264_qpel ## SIZE ## _mc33_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
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    DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
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    DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
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    put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src + stride, SIZE, stride);\
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    put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src+1, SIZE, stride);\
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    OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
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}\
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\
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static void OPNAME ## h264_qpel ## SIZE ## _mc22_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
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    DECLARE_ALIGNED(16, int16_t, tmp)[SIZE*(SIZE+8)];\
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    OPNAME ## h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(dst, tmp, src, stride, SIZE, stride);\
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}\
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\
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static void OPNAME ## h264_qpel ## SIZE ## _mc21_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
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    DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
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    DECLARE_ALIGNED(16, uint8_t, halfHV)[SIZE*SIZE];\
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    DECLARE_ALIGNED(16, int16_t, tmp)[SIZE*(SIZE+8)];\
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    put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src, SIZE, stride);\
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    put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
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    OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfHV, stride, SIZE, SIZE);\
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}\
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\
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static void OPNAME ## h264_qpel ## SIZE ## _mc23_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
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    DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
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    DECLARE_ALIGNED(16, uint8_t, halfHV)[SIZE*SIZE];\
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    DECLARE_ALIGNED(16, int16_t, tmp)[SIZE*(SIZE+8)];\
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    put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src + stride, SIZE, stride);\
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    put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
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    OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfHV, stride, SIZE, SIZE);\
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}\
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\
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static void OPNAME ## h264_qpel ## SIZE ## _mc12_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
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    DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
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    DECLARE_ALIGNED(16, uint8_t, halfHV)[SIZE*SIZE];\
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    DECLARE_ALIGNED(16, int16_t, tmp)[SIZE*(SIZE+8)];\
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    put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src, SIZE, stride);\
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    put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
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    OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfV, halfHV, stride, SIZE, SIZE);\
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}\
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\
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static void OPNAME ## h264_qpel ## SIZE ## _mc32_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
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    DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
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    DECLARE_ALIGNED(16, uint8_t, halfHV)[SIZE*SIZE];\
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    DECLARE_ALIGNED(16, int16_t, tmp)[SIZE*(SIZE+8)];\
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    put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src+1, SIZE, stride);\
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    put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
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    OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfV, halfHV, stride, SIZE, SIZE);\
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}\
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static inline void put_pixels16_l2_altivec( uint8_t * dst, const uint8_t * src1,
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                                    const uint8_t * src2, int dst_stride,
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                                    int src_stride1, int h)
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{
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    int i;
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    vec_u8 a, b, d, tmp1, tmp2, mask, mask_, edges, align;
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    mask_ = vec_lvsl(0, src2);
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    for (i = 0; i < h; i++) {
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        tmp1 = vec_ld(i * src_stride1, src1);
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        mask = vec_lvsl(i * src_stride1, src1);
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        tmp2 = vec_ld(i * src_stride1 + 15, src1);
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        a = vec_perm(tmp1, tmp2, mask);
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        tmp1 = vec_ld(i * 16, src2);
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        tmp2 = vec_ld(i * 16 + 15, src2);
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        b = vec_perm(tmp1, tmp2, mask_);
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        tmp1 = vec_ld(0, dst);
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        mask = vec_lvsl(0, dst);
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        tmp2 = vec_ld(15, dst);
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        d = vec_avg(a, b);
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        edges = vec_perm(tmp2, tmp1, mask);
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        align = vec_lvsr(0, dst);
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        tmp2 = vec_perm(d, edges, align);
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        tmp1 = vec_perm(edges, d, align);
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        vec_st(tmp2, 15, dst);
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        vec_st(tmp1, 0 , dst);
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        dst += dst_stride;
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    }
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}
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static inline void avg_pixels16_l2_altivec( uint8_t * dst, const uint8_t * src1,
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                                    const uint8_t * src2, int dst_stride,
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                                    int src_stride1, int h)
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{
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    int i;
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    vec_u8 a, b, d, tmp1, tmp2, mask, mask_, edges, align;
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    mask_ = vec_lvsl(0, src2);
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    for (i = 0; i < h; i++) {
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        tmp1 = vec_ld(i * src_stride1, src1);
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        mask = vec_lvsl(i * src_stride1, src1);
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        tmp2 = vec_ld(i * src_stride1 + 15, src1);
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        a = vec_perm(tmp1, tmp2, mask);
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        tmp1 = vec_ld(i * 16, src2);
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        tmp2 = vec_ld(i * 16 + 15, src2);
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        b = vec_perm(tmp1, tmp2, mask_);
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        tmp1 = vec_ld(0, dst);
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        mask = vec_lvsl(0, dst);
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        tmp2 = vec_ld(15, dst);
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        d = vec_avg(vec_perm(tmp1, tmp2, mask), vec_avg(a, b));
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        edges = vec_perm(tmp2, tmp1, mask);
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        align = vec_lvsr(0, dst);
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        tmp2 = vec_perm(d, edges, align);
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        tmp1 = vec_perm(edges, d, align);
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        vec_st(tmp2, 15, dst);
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        vec_st(tmp1, 0 , dst);
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        dst += dst_stride;
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    }
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}
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/* Implemented but could be faster
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#define put_pixels16_l2_altivec(d,s1,s2,ds,s1s,h) put_pixels16_l2(d,s1,s2,ds,s1s,16,h)
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#define avg_pixels16_l2_altivec(d,s1,s2,ds,s1s,h) avg_pixels16_l2(d,s1,s2,ds,s1s,16,h)
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 */
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H264_MC(put_, 16, altivec)
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H264_MC(avg_, 16, altivec)
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/****************************************************************************
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 * IDCT transform:
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 ****************************************************************************/
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#define VEC_1D_DCT(vb0,vb1,vb2,vb3,va0,va1,va2,va3)               \
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    /* 1st stage */                                               \
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    vz0 = vec_add(vb0,vb2);       /* temp[0] = Y[0] + Y[2] */     \
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    vz1 = vec_sub(vb0,vb2);       /* temp[1] = Y[0] - Y[2] */     \
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    vz2 = vec_sra(vb1,vec_splat_u16(1));                          \
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    vz2 = vec_sub(vz2,vb3);       /* temp[2] = Y[1].1/2 - Y[3] */ \
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    vz3 = vec_sra(vb3,vec_splat_u16(1));                          \
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    vz3 = vec_add(vb1,vz3);       /* temp[3] = Y[1] + Y[3].1/2 */ \
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    /* 2nd stage: output */                                       \
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    va0 = vec_add(vz0,vz3);       /* x[0] = temp[0] + temp[3] */  \
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    va1 = vec_add(vz1,vz2);       /* x[1] = temp[1] + temp[2] */  \
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    va2 = vec_sub(vz1,vz2);       /* x[2] = temp[1] - temp[2] */  \
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    va3 = vec_sub(vz0,vz3)        /* x[3] = temp[0] - temp[3] */
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#define VEC_TRANSPOSE_4(a0,a1,a2,a3,b0,b1,b2,b3) \
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    b0 = vec_mergeh( a0, a0 ); \
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    b1 = vec_mergeh( a1, a0 ); \
297
    b2 = vec_mergeh( a2, a0 ); \
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    b3 = vec_mergeh( a3, a0 ); \
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    a0 = vec_mergeh( b0, b2 ); \
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    a1 = vec_mergel( b0, b2 ); \
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    a2 = vec_mergeh( b1, b3 ); \
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    a3 = vec_mergel( b1, b3 ); \
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    b0 = vec_mergeh( a0, a2 ); \
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    b1 = vec_mergel( a0, a2 ); \
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    b2 = vec_mergeh( a1, a3 ); \
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    b3 = vec_mergel( a1, a3 )
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#define VEC_LOAD_U8_ADD_S16_STORE_U8(va)                      \
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    vdst_orig = vec_ld(0, dst);                               \
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    vdst = vec_perm(vdst_orig, zero_u8v, vdst_mask);          \
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    vdst_ss = (vec_s16) vec_mergeh(zero_u8v, vdst);         \
312
    va = vec_add(va, vdst_ss);                                \
313
    va_u8 = vec_packsu(va, zero_s16v);                        \
314
    va_u32 = vec_splat((vec_u32)va_u8, 0);                  \
315
    vec_ste(va_u32, element, (uint32_t*)dst);
316

    
317
static void ff_h264_idct_add_altivec(uint8_t *dst, DCTELEM *block, int stride)
318
{
319
    vec_s16 va0, va1, va2, va3;
320
    vec_s16 vz0, vz1, vz2, vz3;
321
    vec_s16 vtmp0, vtmp1, vtmp2, vtmp3;
322
    vec_u8 va_u8;
323
    vec_u32 va_u32;
324
    vec_s16 vdst_ss;
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    const vec_u16 v6us = vec_splat_u16(6);
326
    vec_u8 vdst, vdst_orig;
327
    vec_u8 vdst_mask = vec_lvsl(0, dst);
328
    int element = ((unsigned long)dst & 0xf) >> 2;
329
    LOAD_ZERO;
330

    
331
    block[0] += 32;  /* add 32 as a DC-level for rounding */
332

    
333
    vtmp0 = vec_ld(0,block);
334
    vtmp1 = vec_sld(vtmp0, vtmp0, 8);
335
    vtmp2 = vec_ld(16,block);
336
    vtmp3 = vec_sld(vtmp2, vtmp2, 8);
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338
    VEC_1D_DCT(vtmp0,vtmp1,vtmp2,vtmp3,va0,va1,va2,va3);
339
    VEC_TRANSPOSE_4(va0,va1,va2,va3,vtmp0,vtmp1,vtmp2,vtmp3);
340
    VEC_1D_DCT(vtmp0,vtmp1,vtmp2,vtmp3,va0,va1,va2,va3);
341

    
342
    va0 = vec_sra(va0,v6us);
343
    va1 = vec_sra(va1,v6us);
344
    va2 = vec_sra(va2,v6us);
345
    va3 = vec_sra(va3,v6us);
346

    
347
    VEC_LOAD_U8_ADD_S16_STORE_U8(va0);
348
    dst += stride;
349
    VEC_LOAD_U8_ADD_S16_STORE_U8(va1);
350
    dst += stride;
351
    VEC_LOAD_U8_ADD_S16_STORE_U8(va2);
352
    dst += stride;
353
    VEC_LOAD_U8_ADD_S16_STORE_U8(va3);
354
}
355

    
356
#define IDCT8_1D_ALTIVEC(s0, s1, s2, s3, s4, s5, s6, s7,  d0, d1, d2, d3, d4, d5, d6, d7) {\
357
    /*        a0  = SRC(0) + SRC(4); */ \
358
    vec_s16 a0v = vec_add(s0, s4);    \
359
    /*        a2  = SRC(0) - SRC(4); */ \
360
    vec_s16 a2v = vec_sub(s0, s4);    \
361
    /*        a4  =           (SRC(2)>>1) - SRC(6); */ \
362
    vec_s16 a4v = vec_sub(vec_sra(s2, onev), s6);    \
363
    /*        a6  =           (SRC(6)>>1) + SRC(2); */ \
364
    vec_s16 a6v = vec_add(vec_sra(s6, onev), s2);    \
365
    /*        b0  =         a0 + a6; */ \
366
    vec_s16 b0v = vec_add(a0v, a6v);  \
367
    /*        b2  =         a2 + a4; */ \
368
    vec_s16 b2v = vec_add(a2v, a4v);  \
369
    /*        b4  =         a2 - a4; */ \
370
    vec_s16 b4v = vec_sub(a2v, a4v);  \
371
    /*        b6  =         a0 - a6; */ \
372
    vec_s16 b6v = vec_sub(a0v, a6v);  \
373
    /* a1 =  SRC(5) - SRC(3) - SRC(7) - (SRC(7)>>1); */ \
374
    /*        a1 =             (SRC(5)-SRC(3)) -  (SRC(7)  +  (SRC(7)>>1)); */ \
375
    vec_s16 a1v = vec_sub( vec_sub(s5, s3), vec_add(s7, vec_sra(s7, onev)) ); \
376
    /* a3 =  SRC(7) + SRC(1) - SRC(3) - (SRC(3)>>1); */ \
377
    /*        a3 =             (SRC(7)+SRC(1)) -  (SRC(3)  +  (SRC(3)>>1)); */ \
378
    vec_s16 a3v = vec_sub( vec_add(s7, s1), vec_add(s3, vec_sra(s3, onev)) );\
379
    /* a5 =  SRC(7) - SRC(1) + SRC(5) + (SRC(5)>>1); */ \
380
    /*        a5 =             (SRC(7)-SRC(1)) +   SRC(5) +   (SRC(5)>>1); */ \
381
    vec_s16 a5v = vec_add( vec_sub(s7, s1), vec_add(s5, vec_sra(s5, onev)) );\
382
    /*        a7 =                SRC(5)+SRC(3) +  SRC(1) +   (SRC(1)>>1); */ \
383
    vec_s16 a7v = vec_add( vec_add(s5, s3), vec_add(s1, vec_sra(s1, onev)) );\
384
    /*        b1 =                  (a7>>2)  +  a1; */ \
385
    vec_s16 b1v = vec_add( vec_sra(a7v, twov), a1v); \
386
    /*        b3 =          a3 +        (a5>>2); */ \
387
    vec_s16 b3v = vec_add(a3v, vec_sra(a5v, twov)); \
388
    /*        b5 =                  (a3>>2)  -   a5; */ \
389
    vec_s16 b5v = vec_sub( vec_sra(a3v, twov), a5v); \
390
    /*        b7 =           a7 -        (a1>>2); */ \
391
    vec_s16 b7v = vec_sub( a7v, vec_sra(a1v, twov)); \
392
    /* DST(0,    b0 + b7); */ \
393
    d0 = vec_add(b0v, b7v); \
394
    /* DST(1,    b2 + b5); */ \
395
    d1 = vec_add(b2v, b5v); \
396
    /* DST(2,    b4 + b3); */ \
397
    d2 = vec_add(b4v, b3v); \
398
    /* DST(3,    b6 + b1); */ \
399
    d3 = vec_add(b6v, b1v); \
400
    /* DST(4,    b6 - b1); */ \
401
    d4 = vec_sub(b6v, b1v); \
402
    /* DST(5,    b4 - b3); */ \
403
    d5 = vec_sub(b4v, b3v); \
404
    /* DST(6,    b2 - b5); */ \
405
    d6 = vec_sub(b2v, b5v); \
406
    /* DST(7,    b0 - b7); */ \
407
    d7 = vec_sub(b0v, b7v); \
408
}
409

    
410
#define ALTIVEC_STORE_SUM_CLIP(dest, idctv, perm_ldv, perm_stv, sel) { \
411
    /* unaligned load */                                       \
412
    vec_u8 hv = vec_ld( 0, dest );                           \
413
    vec_u8 lv = vec_ld( 7, dest );                           \
414
    vec_u8 dstv   = vec_perm( hv, lv, (vec_u8)perm_ldv );  \
415
    vec_s16 idct_sh6 = vec_sra(idctv, sixv);                 \
416
    vec_u16 dst16 = (vec_u16)vec_mergeh(zero_u8v, dstv);   \
417
    vec_s16 idstsum = vec_adds(idct_sh6, (vec_s16)dst16);  \
418
    vec_u8 idstsum8 = vec_packsu(zero_s16v, idstsum);        \
419
    vec_u8 edgehv;                                           \
420
    /* unaligned store */                                      \
421
    vec_u8 bodyv  = vec_perm( idstsum8, idstsum8, perm_stv );\
422
    vec_u8 edgelv = vec_perm( sel, zero_u8v, perm_stv );     \
423
    lv    = vec_sel( lv, bodyv, edgelv );                      \
424
    vec_st( lv, 7, dest );                                     \
425
    hv    = vec_ld( 0, dest );                                 \
426
    edgehv = vec_perm( zero_u8v, sel, perm_stv );              \
427
    hv    = vec_sel( hv, bodyv, edgehv );                      \
428
    vec_st( hv, 0, dest );                                     \
429
 }
430

    
431
static void ff_h264_idct8_add_altivec( uint8_t *dst, DCTELEM *dct, int stride ) {
432
    vec_s16 s0, s1, s2, s3, s4, s5, s6, s7;
433
    vec_s16 d0, d1, d2, d3, d4, d5, d6, d7;
434
    vec_s16 idct0, idct1, idct2, idct3, idct4, idct5, idct6, idct7;
435

    
436
    vec_u8 perm_ldv = vec_lvsl(0, dst);
437
    vec_u8 perm_stv = vec_lvsr(8, dst);
438

    
439
    const vec_u16 onev = vec_splat_u16(1);
440
    const vec_u16 twov = vec_splat_u16(2);
441
    const vec_u16 sixv = vec_splat_u16(6);
442

    
443
    const vec_u8 sel = (vec_u8) {0,0,0,0,0,0,0,0,-1,-1,-1,-1,-1,-1,-1,-1};
444
    LOAD_ZERO;
445

    
446
    dct[0] += 32; // rounding for the >>6 at the end
447

    
448
    s0 = vec_ld(0x00, (int16_t*)dct);
449
    s1 = vec_ld(0x10, (int16_t*)dct);
450
    s2 = vec_ld(0x20, (int16_t*)dct);
451
    s3 = vec_ld(0x30, (int16_t*)dct);
452
    s4 = vec_ld(0x40, (int16_t*)dct);
453
    s5 = vec_ld(0x50, (int16_t*)dct);
454
    s6 = vec_ld(0x60, (int16_t*)dct);
455
    s7 = vec_ld(0x70, (int16_t*)dct);
456

    
457
    IDCT8_1D_ALTIVEC(s0, s1, s2, s3, s4, s5, s6, s7,
458
                     d0, d1, d2, d3, d4, d5, d6, d7);
459

    
460
    TRANSPOSE8( d0,  d1,  d2,  d3,  d4,  d5,  d6, d7 );
461

    
462
    IDCT8_1D_ALTIVEC(d0,  d1,  d2,  d3,  d4,  d5,  d6, d7,
463
                     idct0, idct1, idct2, idct3, idct4, idct5, idct6, idct7);
464

    
465
    ALTIVEC_STORE_SUM_CLIP(&dst[0*stride], idct0, perm_ldv, perm_stv, sel);
466
    ALTIVEC_STORE_SUM_CLIP(&dst[1*stride], idct1, perm_ldv, perm_stv, sel);
467
    ALTIVEC_STORE_SUM_CLIP(&dst[2*stride], idct2, perm_ldv, perm_stv, sel);
468
    ALTIVEC_STORE_SUM_CLIP(&dst[3*stride], idct3, perm_ldv, perm_stv, sel);
469
    ALTIVEC_STORE_SUM_CLIP(&dst[4*stride], idct4, perm_ldv, perm_stv, sel);
470
    ALTIVEC_STORE_SUM_CLIP(&dst[5*stride], idct5, perm_ldv, perm_stv, sel);
471
    ALTIVEC_STORE_SUM_CLIP(&dst[6*stride], idct6, perm_ldv, perm_stv, sel);
472
    ALTIVEC_STORE_SUM_CLIP(&dst[7*stride], idct7, perm_ldv, perm_stv, sel);
473
}
474

    
475
static av_always_inline void h264_idct_dc_add_internal(uint8_t *dst, DCTELEM *block, int stride, int size)
476
{
477
    vec_s16 dc16;
478
    vec_u8 dcplus, dcminus, v0, v1, v2, v3, aligner;
479
    LOAD_ZERO;
480
    DECLARE_ALIGNED(16, int, dc);
481
    int i;
482

    
483
    dc = (block[0] + 32) >> 6;
484
    dc16 = vec_splat((vec_s16) vec_lde(0, &dc), 1);
485

    
486
    if (size == 4)
487
        dc16 = vec_sld(dc16, zero_s16v, 8);
488
    dcplus = vec_packsu(dc16, zero_s16v);
489
    dcminus = vec_packsu(vec_sub(zero_s16v, dc16), zero_s16v);
490

    
491
    aligner = vec_lvsr(0, dst);
492
    dcplus = vec_perm(dcplus, dcplus, aligner);
493
    dcminus = vec_perm(dcminus, dcminus, aligner);
494

    
495
    for (i = 0; i < size; i += 4) {
496
        v0 = vec_ld(0, dst+0*stride);
497
        v1 = vec_ld(0, dst+1*stride);
498
        v2 = vec_ld(0, dst+2*stride);
499
        v3 = vec_ld(0, dst+3*stride);
500

    
501
        v0 = vec_adds(v0, dcplus);
502
        v1 = vec_adds(v1, dcplus);
503
        v2 = vec_adds(v2, dcplus);
504
        v3 = vec_adds(v3, dcplus);
505

    
506
        v0 = vec_subs(v0, dcminus);
507
        v1 = vec_subs(v1, dcminus);
508
        v2 = vec_subs(v2, dcminus);
509
        v3 = vec_subs(v3, dcminus);
510

    
511
        vec_st(v0, 0, dst+0*stride);
512
        vec_st(v1, 0, dst+1*stride);
513
        vec_st(v2, 0, dst+2*stride);
514
        vec_st(v3, 0, dst+3*stride);
515

    
516
        dst += 4*stride;
517
    }
518
}
519

    
520
static void h264_idct_dc_add_altivec(uint8_t *dst, DCTELEM *block, int stride)
521
{
522
    h264_idct_dc_add_internal(dst, block, stride, 4);
523
}
524

    
525
static void ff_h264_idct8_dc_add_altivec(uint8_t *dst, DCTELEM *block, int stride)
526
{
527
    h264_idct_dc_add_internal(dst, block, stride, 8);
528
}
529

    
530
static void ff_h264_idct_add16_altivec(uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]){
531
    int i;
532
    for(i=0; i<16; i++){
533
        int nnz = nnzc[ scan8[i] ];
534
        if(nnz){
535
            if(nnz==1 && block[i*16]) h264_idct_dc_add_altivec(dst + block_offset[i], block + i*16, stride);
536
            else                      ff_h264_idct_add_altivec(dst + block_offset[i], block + i*16, stride);
537
        }
538
    }
539
}
540

    
541
static void ff_h264_idct_add16intra_altivec(uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]){
542
    int i;
543
    for(i=0; i<16; i++){
544
        if(nnzc[ scan8[i] ]) ff_h264_idct_add_altivec(dst + block_offset[i], block + i*16, stride);
545
        else if(block[i*16]) h264_idct_dc_add_altivec(dst + block_offset[i], block + i*16, stride);
546
    }
547
}
548

    
549
static void ff_h264_idct8_add4_altivec(uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]){
550
    int i;
551
    for(i=0; i<16; i+=4){
552
        int nnz = nnzc[ scan8[i] ];
553
        if(nnz){
554
            if(nnz==1 && block[i*16]) ff_h264_idct8_dc_add_altivec(dst + block_offset[i], block + i*16, stride);
555
            else                      ff_h264_idct8_add_altivec   (dst + block_offset[i], block + i*16, stride);
556
        }
557
    }
558
}
559

    
560
static void ff_h264_idct_add8_altivec(uint8_t **dest, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]){
561
    int i;
562
    for(i=16; i<16+8; i++){
563
        if(nnzc[ scan8[i] ])
564
            ff_h264_idct_add_altivec(dest[(i&4)>>2] + block_offset[i], block + i*16, stride);
565
        else if(block[i*16])
566
            h264_idct_dc_add_altivec(dest[(i&4)>>2] + block_offset[i], block + i*16, stride);
567
    }
568
}
569

    
570
#define transpose4x16(r0, r1, r2, r3) {      \
571
    register vec_u8 r4;                    \
572
    register vec_u8 r5;                    \
573
    register vec_u8 r6;                    \
574
    register vec_u8 r7;                    \
575
                                             \
576
    r4 = vec_mergeh(r0, r2);  /*0, 2 set 0*/ \
577
    r5 = vec_mergel(r0, r2);  /*0, 2 set 1*/ \
578
    r6 = vec_mergeh(r1, r3);  /*1, 3 set 0*/ \
579
    r7 = vec_mergel(r1, r3);  /*1, 3 set 1*/ \
580
                                             \
581
    r0 = vec_mergeh(r4, r6);  /*all set 0*/  \
582
    r1 = vec_mergel(r4, r6);  /*all set 1*/  \
583
    r2 = vec_mergeh(r5, r7);  /*all set 2*/  \
584
    r3 = vec_mergel(r5, r7);  /*all set 3*/  \
585
}
586

    
587
static inline void write16x4(uint8_t *dst, int dst_stride,
588
                             register vec_u8 r0, register vec_u8 r1,
589
                             register vec_u8 r2, register vec_u8 r3) {
590
    DECLARE_ALIGNED(16, unsigned char, result)[64];
591
    uint32_t *src_int = (uint32_t *)result, *dst_int = (uint32_t *)dst;
592
    int int_dst_stride = dst_stride/4;
593

    
594
    vec_st(r0, 0, result);
595
    vec_st(r1, 16, result);
596
    vec_st(r2, 32, result);
597
    vec_st(r3, 48, result);
598
    /* FIXME: there has to be a better way!!!! */
599
    *dst_int = *src_int;
600
    *(dst_int+   int_dst_stride) = *(src_int + 1);
601
    *(dst_int+ 2*int_dst_stride) = *(src_int + 2);
602
    *(dst_int+ 3*int_dst_stride) = *(src_int + 3);
603
    *(dst_int+ 4*int_dst_stride) = *(src_int + 4);
604
    *(dst_int+ 5*int_dst_stride) = *(src_int + 5);
605
    *(dst_int+ 6*int_dst_stride) = *(src_int + 6);
606
    *(dst_int+ 7*int_dst_stride) = *(src_int + 7);
607
    *(dst_int+ 8*int_dst_stride) = *(src_int + 8);
608
    *(dst_int+ 9*int_dst_stride) = *(src_int + 9);
609
    *(dst_int+10*int_dst_stride) = *(src_int + 10);
610
    *(dst_int+11*int_dst_stride) = *(src_int + 11);
611
    *(dst_int+12*int_dst_stride) = *(src_int + 12);
612
    *(dst_int+13*int_dst_stride) = *(src_int + 13);
613
    *(dst_int+14*int_dst_stride) = *(src_int + 14);
614
    *(dst_int+15*int_dst_stride) = *(src_int + 15);
615
}
616

    
617
/** \brief performs a 6x16 transpose of data in src, and stores it to dst
618
    \todo FIXME: see if we can't spare some vec_lvsl() by them factorizing
619
    out of unaligned_load() */
620
#define readAndTranspose16x6(src, src_stride, r8, r9, r10, r11, r12, r13) {\
621
    register vec_u8 r0  = unaligned_load(0,             src);            \
622
    register vec_u8 r1  = unaligned_load(   src_stride, src);            \
623
    register vec_u8 r2  = unaligned_load(2* src_stride, src);            \
624
    register vec_u8 r3  = unaligned_load(3* src_stride, src);            \
625
    register vec_u8 r4  = unaligned_load(4* src_stride, src);            \
626
    register vec_u8 r5  = unaligned_load(5* src_stride, src);            \
627
    register vec_u8 r6  = unaligned_load(6* src_stride, src);            \
628
    register vec_u8 r7  = unaligned_load(7* src_stride, src);            \
629
    register vec_u8 r14 = unaligned_load(14*src_stride, src);            \
630
    register vec_u8 r15 = unaligned_load(15*src_stride, src);            \
631
                                                                           \
632
    r8  = unaligned_load( 8*src_stride, src);                              \
633
    r9  = unaligned_load( 9*src_stride, src);                              \
634
    r10 = unaligned_load(10*src_stride, src);                              \
635
    r11 = unaligned_load(11*src_stride, src);                              \
636
    r12 = unaligned_load(12*src_stride, src);                              \
637
    r13 = unaligned_load(13*src_stride, src);                              \
638
                                                                           \
639
    /*Merge first pairs*/                                                  \
640
    r0 = vec_mergeh(r0, r8);    /*0, 8*/                                   \
641
    r1 = vec_mergeh(r1, r9);    /*1, 9*/                                   \
642
    r2 = vec_mergeh(r2, r10);   /*2,10*/                                   \
643
    r3 = vec_mergeh(r3, r11);   /*3,11*/                                   \
644
    r4 = vec_mergeh(r4, r12);   /*4,12*/                                   \
645
    r5 = vec_mergeh(r5, r13);   /*5,13*/                                   \
646
    r6 = vec_mergeh(r6, r14);   /*6,14*/                                   \
647
    r7 = vec_mergeh(r7, r15);   /*7,15*/                                   \
648
                                                                           \
649
    /*Merge second pairs*/                                                 \
650
    r8  = vec_mergeh(r0, r4);   /*0,4, 8,12 set 0*/                        \
651
    r9  = vec_mergel(r0, r4);   /*0,4, 8,12 set 1*/                        \
652
    r10 = vec_mergeh(r1, r5);   /*1,5, 9,13 set 0*/                        \
653
    r11 = vec_mergel(r1, r5);   /*1,5, 9,13 set 1*/                        \
654
    r12 = vec_mergeh(r2, r6);   /*2,6,10,14 set 0*/                        \
655
    r13 = vec_mergel(r2, r6);   /*2,6,10,14 set 1*/                        \
656
    r14 = vec_mergeh(r3, r7);   /*3,7,11,15 set 0*/                        \
657
    r15 = vec_mergel(r3, r7);   /*3,7,11,15 set 1*/                        \
658
                                                                           \
659
    /*Third merge*/                                                        \
660
    r0 = vec_mergeh(r8,  r12);  /*0,2,4,6,8,10,12,14 set 0*/               \
661
    r1 = vec_mergel(r8,  r12);  /*0,2,4,6,8,10,12,14 set 1*/               \
662
    r2 = vec_mergeh(r9,  r13);  /*0,2,4,6,8,10,12,14 set 2*/               \
663
    r4 = vec_mergeh(r10, r14);  /*1,3,5,7,9,11,13,15 set 0*/               \
664
    r5 = vec_mergel(r10, r14);  /*1,3,5,7,9,11,13,15 set 1*/               \
665
    r6 = vec_mergeh(r11, r15);  /*1,3,5,7,9,11,13,15 set 2*/               \
666
    /* Don't need to compute 3 and 7*/                                     \
667
                                                                           \
668
    /*Final merge*/                                                        \
669
    r8  = vec_mergeh(r0, r4);   /*all set 0*/                              \
670
    r9  = vec_mergel(r0, r4);   /*all set 1*/                              \
671
    r10 = vec_mergeh(r1, r5);   /*all set 2*/                              \
672
    r11 = vec_mergel(r1, r5);   /*all set 3*/                              \
673
    r12 = vec_mergeh(r2, r6);   /*all set 4*/                              \
674
    r13 = vec_mergel(r2, r6);   /*all set 5*/                              \
675
    /* Don't need to compute 14 and 15*/                                   \
676
                                                                           \
677
}
678

    
679
// out: o = |x-y| < a
680
static inline vec_u8 diff_lt_altivec ( register vec_u8 x,
681
                                         register vec_u8 y,
682
                                         register vec_u8 a) {
683

    
684
    register vec_u8 diff = vec_subs(x, y);
685
    register vec_u8 diffneg = vec_subs(y, x);
686
    register vec_u8 o = vec_or(diff, diffneg); /* |x-y| */
687
    o = (vec_u8)vec_cmplt(o, a);
688
    return o;
689
}
690

    
691
static inline vec_u8 h264_deblock_mask ( register vec_u8 p0,
692
                                           register vec_u8 p1,
693
                                           register vec_u8 q0,
694
                                           register vec_u8 q1,
695
                                           register vec_u8 alpha,
696
                                           register vec_u8 beta) {
697

    
698
    register vec_u8 mask;
699
    register vec_u8 tempmask;
700

    
701
    mask = diff_lt_altivec(p0, q0, alpha);
702
    tempmask = diff_lt_altivec(p1, p0, beta);
703
    mask = vec_and(mask, tempmask);
704
    tempmask = diff_lt_altivec(q1, q0, beta);
705
    mask = vec_and(mask, tempmask);
706

    
707
    return mask;
708
}
709

    
710
// out: newp1 = clip((p2 + ((p0 + q0 + 1) >> 1)) >> 1, p1-tc0, p1+tc0)
711
static inline vec_u8 h264_deblock_q1(register vec_u8 p0,
712
                                       register vec_u8 p1,
713
                                       register vec_u8 p2,
714
                                       register vec_u8 q0,
715
                                       register vec_u8 tc0) {
716

    
717
    register vec_u8 average = vec_avg(p0, q0);
718
    register vec_u8 temp;
719
    register vec_u8 uncliped;
720
    register vec_u8 ones;
721
    register vec_u8 max;
722
    register vec_u8 min;
723
    register vec_u8 newp1;
724

    
725
    temp = vec_xor(average, p2);
726
    average = vec_avg(average, p2);     /*avg(p2, avg(p0, q0)) */
727
    ones = vec_splat_u8(1);
728
    temp = vec_and(temp, ones);         /*(p2^avg(p0, q0)) & 1 */
729
    uncliped = vec_subs(average, temp); /*(p2+((p0+q0+1)>>1))>>1 */
730
    max = vec_adds(p1, tc0);
731
    min = vec_subs(p1, tc0);
732
    newp1 = vec_max(min, uncliped);
733
    newp1 = vec_min(max, newp1);
734
    return newp1;
735
}
736

    
737
#define h264_deblock_p0_q0(p0, p1, q0, q1, tc0masked) {                                           \
738
                                                                                                  \
739
    const vec_u8 A0v = vec_sl(vec_splat_u8(10), vec_splat_u8(4));                               \
740
                                                                                                  \
741
    register vec_u8 pq0bit = vec_xor(p0,q0);                                                    \
742
    register vec_u8 q1minus;                                                                    \
743
    register vec_u8 p0minus;                                                                    \
744
    register vec_u8 stage1;                                                                     \
745
    register vec_u8 stage2;                                                                     \
746
    register vec_u8 vec160;                                                                     \
747
    register vec_u8 delta;                                                                      \
748
    register vec_u8 deltaneg;                                                                   \
749
                                                                                                  \
750
    q1minus = vec_nor(q1, q1);                 /* 255 - q1 */                                     \
751
    stage1 = vec_avg(p1, q1minus);             /* (p1 - q1 + 256)>>1 */                           \
752
    stage2 = vec_sr(stage1, vec_splat_u8(1));  /* (p1 - q1 + 256)>>2 = 64 + (p1 - q1) >> 2 */     \
753
    p0minus = vec_nor(p0, p0);                 /* 255 - p0 */                                     \
754
    stage1 = vec_avg(q0, p0minus);             /* (q0 - p0 + 256)>>1 */                           \
755
    pq0bit = vec_and(pq0bit, vec_splat_u8(1));                                                    \
756
    stage2 = vec_avg(stage2, pq0bit);          /* 32 + ((q0 - p0)&1 + (p1 - q1) >> 2 + 1) >> 1 */ \
757
    stage2 = vec_adds(stage2, stage1);         /* 160 + ((p0 - q0) + (p1 - q1) >> 2 + 1) >> 1 */  \
758
    vec160 = vec_ld(0, &A0v);                                                                     \
759
    deltaneg = vec_subs(vec160, stage2);       /* -d */                                           \
760
    delta = vec_subs(stage2, vec160);          /* d */                                            \
761
    deltaneg = vec_min(tc0masked, deltaneg);                                                      \
762
    delta = vec_min(tc0masked, delta);                                                            \
763
    p0 = vec_subs(p0, deltaneg);                                                                  \
764
    q0 = vec_subs(q0, delta);                                                                     \
765
    p0 = vec_adds(p0, delta);                                                                     \
766
    q0 = vec_adds(q0, deltaneg);                                                                  \
767
}
768

    
769
#define h264_loop_filter_luma_altivec(p2, p1, p0, q0, q1, q2, alpha, beta, tc0) {            \
770
    DECLARE_ALIGNED(16, unsigned char, temp)[16];                                             \
771
    register vec_u8 alphavec;                                                              \
772
    register vec_u8 betavec;                                                               \
773
    register vec_u8 mask;                                                                  \
774
    register vec_u8 p1mask;                                                                \
775
    register vec_u8 q1mask;                                                                \
776
    register vector signed   char tc0vec;                                                    \
777
    register vec_u8 finaltc0;                                                              \
778
    register vec_u8 tc0masked;                                                             \
779
    register vec_u8 newp1;                                                                 \
780
    register vec_u8 newq1;                                                                 \
781
                                                                                             \
782
    temp[0] = alpha;                                                                         \
783
    temp[1] = beta;                                                                          \
784
    alphavec = vec_ld(0, temp);                                                              \
785
    betavec = vec_splat(alphavec, 0x1);                                                      \
786
    alphavec = vec_splat(alphavec, 0x0);                                                     \
787
    mask = h264_deblock_mask(p0, p1, q0, q1, alphavec, betavec); /*if in block */            \
788
                                                                                             \
789
    *((int *)temp) = *((int *)tc0);                                                          \
790
    tc0vec = vec_ld(0, (signed char*)temp);                                                  \
791
    tc0vec = vec_mergeh(tc0vec, tc0vec);                                                     \
792
    tc0vec = vec_mergeh(tc0vec, tc0vec);                                                     \
793
    mask = vec_and(mask, vec_cmpgt(tc0vec, vec_splat_s8(-1)));  /* if tc0[i] >= 0 */         \
794
    finaltc0 = vec_and((vec_u8)tc0vec, mask);     /* tc = tc0 */                           \
795
                                                                                             \
796
    p1mask = diff_lt_altivec(p2, p0, betavec);                                               \
797
    p1mask = vec_and(p1mask, mask);                             /* if ( |p2 - p0| < beta) */ \
798
    tc0masked = vec_and(p1mask, (vec_u8)tc0vec);                                           \
799
    finaltc0 = vec_sub(finaltc0, p1mask);                       /* tc++ */                   \
800
    newp1 = h264_deblock_q1(p0, p1, p2, q0, tc0masked);                                      \
801
    /*end if*/                                                                               \
802
                                                                                             \
803
    q1mask = diff_lt_altivec(q2, q0, betavec);                                               \
804
    q1mask = vec_and(q1mask, mask);                             /* if ( |q2 - q0| < beta ) */\
805
    tc0masked = vec_and(q1mask, (vec_u8)tc0vec);                                           \
806
    finaltc0 = vec_sub(finaltc0, q1mask);                       /* tc++ */                   \
807
    newq1 = h264_deblock_q1(p0, q1, q2, q0, tc0masked);                                      \
808
    /*end if*/                                                                               \
809
                                                                                             \
810
    h264_deblock_p0_q0(p0, p1, q0, q1, finaltc0);                                            \
811
    p1 = newp1;                                                                              \
812
    q1 = newq1;                                                                              \
813
}
814

    
815
static void h264_v_loop_filter_luma_altivec(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) {
816

    
817
    if ((tc0[0] & tc0[1] & tc0[2] & tc0[3]) >= 0) {
818
        register vec_u8 p2 = vec_ld(-3*stride, pix);
819
        register vec_u8 p1 = vec_ld(-2*stride, pix);
820
        register vec_u8 p0 = vec_ld(-1*stride, pix);
821
        register vec_u8 q0 = vec_ld(0, pix);
822
        register vec_u8 q1 = vec_ld(stride, pix);
823
        register vec_u8 q2 = vec_ld(2*stride, pix);
824
        h264_loop_filter_luma_altivec(p2, p1, p0, q0, q1, q2, alpha, beta, tc0);
825
        vec_st(p1, -2*stride, pix);
826
        vec_st(p0, -1*stride, pix);
827
        vec_st(q0, 0, pix);
828
        vec_st(q1, stride, pix);
829
    }
830
}
831

    
832
static void h264_h_loop_filter_luma_altivec(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) {
833

    
834
    register vec_u8 line0, line1, line2, line3, line4, line5;
835
    if ((tc0[0] & tc0[1] & tc0[2] & tc0[3]) < 0)
836
        return;
837
    readAndTranspose16x6(pix-3, stride, line0, line1, line2, line3, line4, line5);
838
    h264_loop_filter_luma_altivec(line0, line1, line2, line3, line4, line5, alpha, beta, tc0);
839
    transpose4x16(line1, line2, line3, line4);
840
    write16x4(pix-2, stride, line1, line2, line3, line4);
841
}
842

    
843
static av_always_inline
844
void weight_h264_WxH_altivec(uint8_t *block, int stride, int log2_denom, int weight, int offset, int w, int h)
845
{
846
    int y, aligned;
847
    vec_u8 vblock;
848
    vec_s16 vtemp, vweight, voffset, v0, v1;
849
    vec_u16 vlog2_denom;
850
    DECLARE_ALIGNED(16, int32_t, temp)[4];
851
    LOAD_ZERO;
852

    
853
    offset <<= log2_denom;
854
    if(log2_denom) offset += 1<<(log2_denom-1);
855
    temp[0] = log2_denom;
856
    temp[1] = weight;
857
    temp[2] = offset;
858

    
859
    vtemp = (vec_s16)vec_ld(0, temp);
860
    vlog2_denom = (vec_u16)vec_splat(vtemp, 1);
861
    vweight = vec_splat(vtemp, 3);
862
    voffset = vec_splat(vtemp, 5);
863
    aligned = !((unsigned long)block & 0xf);
864

    
865
    for (y=0; y<h; y++) {
866
        vblock = vec_ld(0, block);
867

    
868
        v0 = (vec_s16)vec_mergeh(zero_u8v, vblock);
869
        v1 = (vec_s16)vec_mergel(zero_u8v, vblock);
870

    
871
        if (w == 16 || aligned) {
872
            v0 = vec_mladd(v0, vweight, zero_s16v);
873
            v0 = vec_adds(v0, voffset);
874
            v0 = vec_sra(v0, vlog2_denom);
875
        }
876
        if (w == 16 || !aligned) {
877
            v1 = vec_mladd(v1, vweight, zero_s16v);
878
            v1 = vec_adds(v1, voffset);
879
            v1 = vec_sra(v1, vlog2_denom);
880
        }
881
        vblock = vec_packsu(v0, v1);
882
        vec_st(vblock, 0, block);
883

    
884
        block += stride;
885
    }
886
}
887

    
888
static av_always_inline
889
void biweight_h264_WxH_altivec(uint8_t *dst, uint8_t *src, int stride, int log2_denom,
890
                               int weightd, int weights, int offset, int w, int h)
891
{
892
    int y, dst_aligned, src_aligned;
893
    vec_u8 vsrc, vdst;
894
    vec_s16 vtemp, vweights, vweightd, voffset, v0, v1, v2, v3;
895
    vec_u16 vlog2_denom;
896
    DECLARE_ALIGNED(16, int32_t, temp)[4];
897
    LOAD_ZERO;
898

    
899
    offset = ((offset + 1) | 1) << log2_denom;
900
    temp[0] = log2_denom+1;
901
    temp[1] = weights;
902
    temp[2] = weightd;
903
    temp[3] = offset;
904

    
905
    vtemp = (vec_s16)vec_ld(0, temp);
906
    vlog2_denom = (vec_u16)vec_splat(vtemp, 1);
907
    vweights = vec_splat(vtemp, 3);
908
    vweightd = vec_splat(vtemp, 5);
909
    voffset = vec_splat(vtemp, 7);
910
    dst_aligned = !((unsigned long)dst & 0xf);
911
    src_aligned = !((unsigned long)src & 0xf);
912

    
913
    for (y=0; y<h; y++) {
914
        vdst = vec_ld(0, dst);
915
        vsrc = vec_ld(0, src);
916

    
917
        v0 = (vec_s16)vec_mergeh(zero_u8v, vdst);
918
        v1 = (vec_s16)vec_mergel(zero_u8v, vdst);
919
        v2 = (vec_s16)vec_mergeh(zero_u8v, vsrc);
920
        v3 = (vec_s16)vec_mergel(zero_u8v, vsrc);
921

    
922
        if (w == 8) {
923
            if (src_aligned)
924
                v3 = v2;
925
            else
926
                v2 = v3;
927
        }
928

    
929
        if (w == 16 || dst_aligned) {
930
            v0 = vec_mladd(v0, vweightd, zero_s16v);
931
            v2 = vec_mladd(v2, vweights, zero_s16v);
932

    
933
            v0 = vec_adds(v0, voffset);
934
            v0 = vec_adds(v0, v2);
935
            v0 = vec_sra(v0, vlog2_denom);
936
        }
937
        if (w == 16 || !dst_aligned) {
938
            v1 = vec_mladd(v1, vweightd, zero_s16v);
939
            v3 = vec_mladd(v3, vweights, zero_s16v);
940

    
941
            v1 = vec_adds(v1, voffset);
942
            v1 = vec_adds(v1, v3);
943
            v1 = vec_sra(v1, vlog2_denom);
944
        }
945
        vdst = vec_packsu(v0, v1);
946
        vec_st(vdst, 0, dst);
947

    
948
        dst += stride;
949
        src += stride;
950
    }
951
}
952

    
953
#define H264_WEIGHT(W,H) \
954
static void ff_weight_h264_pixels ## W ## x ## H ## _altivec(uint8_t *block, int stride, int log2_denom, int weight, int offset){ \
955
    weight_h264_WxH_altivec(block, stride, log2_denom, weight, offset, W, H); \
956
}\
957
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){ \
958
    biweight_h264_WxH_altivec(dst, src, stride, log2_denom, weightd, weights, offset, W, H); \
959
}
960

    
961
H264_WEIGHT(16,16)
962
H264_WEIGHT(16, 8)
963
H264_WEIGHT( 8,16)
964
H264_WEIGHT( 8, 8)
965
H264_WEIGHT( 8, 4)
966

    
967
void dsputil_h264_init_ppc(DSPContext* c, AVCodecContext *avctx) {
968
    const int h264_high_depth = avctx->codec_id == CODEC_ID_H264 && avctx->bits_per_raw_sample > 8;
969

    
970
    if (av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC) {
971
    if (!h264_high_depth) {
972
        c->put_h264_chroma_pixels_tab[0] = put_h264_chroma_mc8_altivec;
973
        c->avg_h264_chroma_pixels_tab[0] = avg_h264_chroma_mc8_altivec;
974

    
975
#define dspfunc(PFX, IDX, NUM) \
976
        c->PFX ## _pixels_tab[IDX][ 0] = PFX ## NUM ## _mc00_altivec; \
977
        c->PFX ## _pixels_tab[IDX][ 1] = PFX ## NUM ## _mc10_altivec; \
978
        c->PFX ## _pixels_tab[IDX][ 2] = PFX ## NUM ## _mc20_altivec; \
979
        c->PFX ## _pixels_tab[IDX][ 3] = PFX ## NUM ## _mc30_altivec; \
980
        c->PFX ## _pixels_tab[IDX][ 4] = PFX ## NUM ## _mc01_altivec; \
981
        c->PFX ## _pixels_tab[IDX][ 5] = PFX ## NUM ## _mc11_altivec; \
982
        c->PFX ## _pixels_tab[IDX][ 6] = PFX ## NUM ## _mc21_altivec; \
983
        c->PFX ## _pixels_tab[IDX][ 7] = PFX ## NUM ## _mc31_altivec; \
984
        c->PFX ## _pixels_tab[IDX][ 8] = PFX ## NUM ## _mc02_altivec; \
985
        c->PFX ## _pixels_tab[IDX][ 9] = PFX ## NUM ## _mc12_altivec; \
986
        c->PFX ## _pixels_tab[IDX][10] = PFX ## NUM ## _mc22_altivec; \
987
        c->PFX ## _pixels_tab[IDX][11] = PFX ## NUM ## _mc32_altivec; \
988
        c->PFX ## _pixels_tab[IDX][12] = PFX ## NUM ## _mc03_altivec; \
989
        c->PFX ## _pixels_tab[IDX][13] = PFX ## NUM ## _mc13_altivec; \
990
        c->PFX ## _pixels_tab[IDX][14] = PFX ## NUM ## _mc23_altivec; \
991
        c->PFX ## _pixels_tab[IDX][15] = PFX ## NUM ## _mc33_altivec
992

    
993
        dspfunc(put_h264_qpel, 0, 16);
994
        dspfunc(avg_h264_qpel, 0, 16);
995
#undef dspfunc
996
    }
997
    }
998
}
999

    
1000
void ff_h264dsp_init_ppc(H264DSPContext *c, const int bit_depth)
1001
{
1002
    if (av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC) {
1003
    if (bit_depth == 8) {
1004
        c->h264_idct_add = ff_h264_idct_add_altivec;
1005
        c->h264_idct_add8 = ff_h264_idct_add8_altivec;
1006
        c->h264_idct_add16 = ff_h264_idct_add16_altivec;
1007
        c->h264_idct_add16intra = ff_h264_idct_add16intra_altivec;
1008
        c->h264_idct_dc_add= h264_idct_dc_add_altivec;
1009
        c->h264_idct8_dc_add = ff_h264_idct8_dc_add_altivec;
1010
        c->h264_idct8_add = ff_h264_idct8_add_altivec;
1011
        c->h264_idct8_add4 = ff_h264_idct8_add4_altivec;
1012
        c->h264_v_loop_filter_luma= h264_v_loop_filter_luma_altivec;
1013
        c->h264_h_loop_filter_luma= h264_h_loop_filter_luma_altivec;
1014

    
1015
        c->weight_h264_pixels_tab[0] = ff_weight_h264_pixels16x16_altivec;
1016
        c->weight_h264_pixels_tab[1] = ff_weight_h264_pixels16x8_altivec;
1017
        c->weight_h264_pixels_tab[2] = ff_weight_h264_pixels8x16_altivec;
1018
        c->weight_h264_pixels_tab[3] = ff_weight_h264_pixels8x8_altivec;
1019
        c->weight_h264_pixels_tab[4] = ff_weight_h264_pixels8x4_altivec;
1020
        c->biweight_h264_pixels_tab[0] = ff_biweight_h264_pixels16x16_altivec;
1021
        c->biweight_h264_pixels_tab[1] = ff_biweight_h264_pixels16x8_altivec;
1022
        c->biweight_h264_pixels_tab[2] = ff_biweight_h264_pixels8x16_altivec;
1023
        c->biweight_h264_pixels_tab[3] = ff_biweight_h264_pixels8x8_altivec;
1024
        c->biweight_h264_pixels_tab[4] = ff_biweight_h264_pixels8x4_altivec;
1025
    }
1026
    }
1027
}