mirror of https://git.ffmpeg.org/ffmpeg.git
116 lines
2.6 KiB
C
116 lines
2.6 KiB
C
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/*
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* MMI optimized DSP utils
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* Copyright (c) 2000, 2001 Fabrice Bellard.
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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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* MMI optimization by Leon van Stuivenberg <leonvs@iae.nl>
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*/
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#include "../dsputil.h"
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void ff_mmi_idct(DCTELEM * block);
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#include "mmi.h"
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static void clear_blocks_mmi(DCTELEM * blocks)
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{
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/* $4 = blocks */
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int i;
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for (i = 0; i < 6; i++) {
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sq($0, 0, $4);
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sq($0, 16, $4);
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sq($0, 32, $4);
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sq($0, 48, $4);
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sq($0, 64, $4);
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sq($0, 80, $4);
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sq($0, 96, $4);
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sq($0, 112, $4);
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__asm__ __volatile__("addi $4, $4, 128");
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}
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}
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static void put_pixels_clamped_mmi(const DCTELEM * block, UINT8 * pixels,
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int line_size)
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{
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/* $4 = block, $5 = pixels, $6 = line_size */
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__asm__ __volatile__("li $11, 255":::"$11");
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lq($4, 0, $12);
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pcpyld($11, $11, $11);
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pcpyh($11, $11);
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#define PUT(rs) \
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ppacb($0, $##rs, $##rs); \
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sd3(rs, 0, 5); \
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__asm__ __volatile__ ("add $5, $5, $6");
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pminh($12, $11, $12);
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pmaxh($12, $0, $12);
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lq($4, 16, $13);
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PUT(12);
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pminh($13, $11, $13);
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pmaxh($13, $0, $13);
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lq($4, 32, $12);
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PUT(13);
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pminh($12, $11, $12);
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pmaxh($12, $0, $12);
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lq($4, 48, $13);
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PUT(12);
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pminh($13, $11, $13);
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pmaxh($13, $0, $13);
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lq($4, 64, $12);
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PUT(13);
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pminh($12, $11, $12);
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pmaxh($12, $0, $12);
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lq($4, 80, $13);
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PUT(12);
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pminh($13, $11, $13);
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pmaxh($13, $0, $13);
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lq($4, 96, $12);
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PUT(13);
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pminh($12, $11, $12);
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pmaxh($12, $0, $12);
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lq($4, 112, $13);
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PUT(12);
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pminh($13, $11, $13);
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pmaxh($13, $0, $13);
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PUT(13);
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}
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/* todo
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static void add_pixels_clamped_mmi(const DCTELEM * block, UINT8 * pixels,
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int line_size)
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{
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}
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*/
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void dsputil_init_mmi(void)
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{
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put_pixels_clamped = put_pixels_clamped_mmi;
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//add_pixels_clamped = add_pixels_clamped_mmi;
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clear_blocks = clear_blocks_mmi;
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ff_idct = ff_mmi_idct;
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}
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