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7a556ebccf
* commit '0c15a9aa7e1654a19144eb594f9639a57fd47482': sh4: Remove dubious aligned dsputil code Conflicts: libavcodec/sh4/dsputil_align.c libavcodec/sh4/h264chroma_init.c libavcodec/sh4/hpeldsp.c libavcodec/sh4/qpel.c If someone wants to maintain the sh4 code in ffmpeg, wants to add more optimizations, or volunteers to maintain any of what is removed here and can confirm that they are faster. Then please contact us! Merged-by: Michael Niedermayer <michaelni@gmx.at>
105 lines
3.9 KiB
C
105 lines
3.9 KiB
C
/*
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* Half-pel DSP functions.
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* Copyright (c) 2000, 2001, 2002 Fabrice Bellard
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* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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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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/**
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* @file
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* Half-pel DSP functions.
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*/
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#ifndef AVCODEC_HPELDSP_H
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#define AVCODEC_HPELDSP_H
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#include <stdint.h>
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#include <stddef.h>
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/* add and put pixel (decoding) */
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// blocksizes for hpel_pixels_func are 8x4,8x8 16x8 16x16
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// h for hpel_pixels_func is limited to {width/2, width} but never larger
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// than 16 and never smaller than 4
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typedef void (*op_pixels_func)(uint8_t *block /*align width (8 or 16)*/,
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const uint8_t *pixels /*align 1*/,
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ptrdiff_t line_size, int h);
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/**
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* Half-pel DSP context.
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*/
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typedef struct HpelDSPContext {
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/**
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* Halfpel motion compensation with rounding (a+b+1)>>1.
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* this is an array[4][4] of motion compensation functions for 4
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* horizontal blocksizes (8,16) and the 4 halfpel positions<br>
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* *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
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* @param block destination where the result is stored
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* @param pixels source
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* @param line_size number of bytes in a horizontal line of block
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* @param h height
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*/
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op_pixels_func put_pixels_tab[4][4];
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/**
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* Halfpel motion compensation with rounding (a+b+1)>>1.
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* This is an array[4][4] of motion compensation functions for 4
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* horizontal blocksizes (8,16) and the 4 halfpel positions<br>
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* *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
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* @param block destination into which the result is averaged (a+b+1)>>1
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* @param pixels source
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* @param line_size number of bytes in a horizontal line of block
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* @param h height
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*/
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op_pixels_func avg_pixels_tab[4][4];
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/**
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* Halfpel motion compensation with no rounding (a+b)>>1.
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* this is an array[4][4] of motion compensation functions for 2
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* horizontal blocksizes (8,16) and the 4 halfpel positions<br>
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* *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
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* @param block destination where the result is stored
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* @param pixels source
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* @param line_size number of bytes in a horizontal line of block
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* @param h height
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*/
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op_pixels_func put_no_rnd_pixels_tab[4][4];
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/**
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* Halfpel motion compensation with no rounding (a+b)>>1.
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* this is an array[4] of motion compensation functions for 1
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* horizontal blocksize (16) and the 4 halfpel positions<br>
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* *pixels_tab[0][ xhalfpel + 2*yhalfpel ]
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* @param block destination into which the result is averaged (a+b)>>1
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* @param pixels source
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* @param line_size number of bytes in a horizontal line of block
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* @param h height
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*/
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op_pixels_func avg_no_rnd_pixels_tab[4];
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} HpelDSPContext;
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void ff_hpeldsp_init(HpelDSPContext *c, int flags);
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void ff_hpeldsp_init_alpha(HpelDSPContext *c, int flags);
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void ff_hpeldsp_init_arm(HpelDSPContext *c, int flags);
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void ff_hpeldsp_init_bfin(HpelDSPContext *c, int flags);
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void ff_hpeldsp_init_ppc(HpelDSPContext *c, int flags);
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void ff_hpeldsp_init_vis(HpelDSPContext *c, int flags);
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void ff_hpeldsp_init_x86(HpelDSPContext *c, int flags);
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#endif /* AVCODEC_HPELDSP_H */
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