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c4e394e460
* commit '79dad2a932534d1155079f937649e099f9e5cc27': dsputil: Separate h264chroma Conflicts: libavcodec/dsputil_template.c libavcodec/ppc/dsputil_ppc.c libavcodec/vc1dec.c libavcodec/vc1dsp.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
133 lines
4.3 KiB
C
133 lines
4.3 KiB
C
/*
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* aligned/packed access motion
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*
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* Copyright (c) 2001-2003 BERO <bero@geocities.co.jp>
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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 <assert.h>
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#include <stdint.h>
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#include "libavutil/attributes.h"
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#include "libavcodec/h264chroma.h"
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#define H264_CHROMA_MC(OPNAME, OP)\
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static void OPNAME ## h264_chroma_mc2_sh4(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y){\
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const int A=(8-x)*(8-y);\
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const int B=( x)*(8-y);\
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const int C=(8-x)*( y);\
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const int D=( x)*( y);\
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\
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assert(x<8 && y<8 && x>=0 && y>=0);\
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\
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do {\
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int t0,t1,t2,t3; \
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uint8_t *s0 = src; \
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uint8_t *s1 = src+stride; \
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t0 = *s0++; t2 = *s1++; \
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t1 = *s0++; t3 = *s1++; \
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OP(dst[0], (A*t0 + B*t1 + C*t2 + D*t3));\
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t0 = *s0++; t2 = *s1++; \
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OP(dst[1], (A*t1 + B*t0 + C*t3 + D*t2));\
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dst+= stride;\
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src+= stride;\
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}while(--h);\
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}\
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\
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static void OPNAME ## h264_chroma_mc4_sh4(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y){\
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const int A=(8-x)*(8-y);\
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const int B=( x)*(8-y);\
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const int C=(8-x)*( y);\
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const int D=( x)*( y);\
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\
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assert(x<8 && y<8 && x>=0 && y>=0);\
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\
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do {\
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int t0,t1,t2,t3; \
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uint8_t *s0 = src; \
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uint8_t *s1 = src+stride; \
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t0 = *s0++; t2 = *s1++; \
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t1 = *s0++; t3 = *s1++; \
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OP(dst[0], (A*t0 + B*t1 + C*t2 + D*t3));\
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t0 = *s0++; t2 = *s1++; \
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OP(dst[1], (A*t1 + B*t0 + C*t3 + D*t2));\
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t1 = *s0++; t3 = *s1++; \
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OP(dst[2], (A*t0 + B*t1 + C*t2 + D*t3));\
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t0 = *s0++; t2 = *s1++; \
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OP(dst[3], (A*t1 + B*t0 + C*t3 + D*t2));\
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dst+= stride;\
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src+= stride;\
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}while(--h);\
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}\
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\
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static void OPNAME ## h264_chroma_mc8_sh4(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y){\
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const int A=(8-x)*(8-y);\
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const int B=( x)*(8-y);\
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const int C=(8-x)*( y);\
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const int D=( x)*( y);\
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\
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assert(x<8 && y<8 && x>=0 && y>=0);\
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\
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do {\
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int t0,t1,t2,t3; \
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uint8_t *s0 = src; \
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uint8_t *s1 = src+stride; \
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t0 = *s0++; t2 = *s1++; \
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t1 = *s0++; t3 = *s1++; \
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OP(dst[0], (A*t0 + B*t1 + C*t2 + D*t3));\
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t0 = *s0++; t2 = *s1++; \
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OP(dst[1], (A*t1 + B*t0 + C*t3 + D*t2));\
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t1 = *s0++; t3 = *s1++; \
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OP(dst[2], (A*t0 + B*t1 + C*t2 + D*t3));\
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t0 = *s0++; t2 = *s1++; \
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OP(dst[3], (A*t1 + B*t0 + C*t3 + D*t2));\
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t1 = *s0++; t3 = *s1++; \
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OP(dst[4], (A*t0 + B*t1 + C*t2 + D*t3));\
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t0 = *s0++; t2 = *s1++; \
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OP(dst[5], (A*t1 + B*t0 + C*t3 + D*t2));\
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t1 = *s0++; t3 = *s1++; \
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OP(dst[6], (A*t0 + B*t1 + C*t2 + D*t3));\
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t0 = *s0++; t2 = *s1++; \
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OP(dst[7], (A*t1 + B*t0 + C*t3 + D*t2));\
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dst+= stride;\
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src+= stride;\
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}while(--h);\
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}
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#define op_avg(a, b) a = (((a)+(((b) + 32)>>6)+1)>>1)
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#define op_put(a, b) a = (((b) + 32)>>6)
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H264_CHROMA_MC(put_ , op_put)
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H264_CHROMA_MC(avg_ , op_avg)
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#undef op_avg
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#undef op_put
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av_cold void ff_h264chroma_init_sh4(H264ChromaContext *c, int bit_depth)
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{
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const int high_bit_depth = bit_depth > 8;
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if (!high_bit_depth) {
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c->put_h264_chroma_pixels_tab[0]= put_h264_chroma_mc8_sh4;
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c->put_h264_chroma_pixels_tab[1]= put_h264_chroma_mc4_sh4;
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c->put_h264_chroma_pixels_tab[2]= put_h264_chroma_mc2_sh4;
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c->avg_h264_chroma_pixels_tab[0]= avg_h264_chroma_mc8_sh4;
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c->avg_h264_chroma_pixels_tab[1]= avg_h264_chroma_mc4_sh4;
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c->avg_h264_chroma_pixels_tab[2]= avg_h264_chroma_mc2_sh4;
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}
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}
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