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ffmpeg / libavcodec / armv4l / dsputil_arm.c @ 46b4feec

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1 92651f67 Fabrice Bellard
/*
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 * ARMv4L optimized DSP utils
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 * Copyright (c) 2001 Lionel Ulmer.
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 *
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 * This library 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 of the License, or (at your option) any later version.
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 *
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 * This library 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 this library; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 */
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#include "../dsputil.h"
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extern void j_rev_dct_ARM(DCTELEM *data);
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/* XXX: local hack */
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static void (*ff_put_pixels_clamped)(const DCTELEM *block, uint8_t *pixels, int line_size);
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static void (*ff_add_pixels_clamped)(const DCTELEM *block, uint8_t *pixels, int line_size);
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/* XXX: those functions should be suppressed ASAP when all IDCTs are
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   converted */
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static void arm_idct_put(uint8_t *dest, int line_size, DCTELEM *block)
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{
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    j_rev_dct_ARM (block);
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    ff_put_pixels_clamped(block, dest, line_size);
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}
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static void arm_idct_add(uint8_t *dest, int line_size, DCTELEM *block)
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{
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    j_rev_dct_ARM (block);
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    ff_add_pixels_clamped(block, dest, line_size);
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}
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void dsputil_init_armv4l(DSPContext* c, AVCodecContext *avctx)
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{
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    const int idct_algo= avctx->idct_algo;
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    ff_put_pixels_clamped = c->put_pixels_clamped;
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    ff_add_pixels_clamped = c->add_pixels_clamped;
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    if(idct_algo==FF_IDCT_AUTO || idct_algo==FF_IDCT_ARM){
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        c->idct_put= arm_idct_put;
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        c->idct_add= arm_idct_add;
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        c->idct_permutation_type= FF_LIBMPEG2_IDCT_PERM;/* FF_NO_IDCT_PERM */
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    }
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}