mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-18 05:24:42 +00:00
304 lines
12 KiB
C
304 lines
12 KiB
C
/*
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* Loongson SIMD optimized mpegvideo
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*
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* Copyright (c) 2015 Loongson Technology Corporation Limited
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* Copyright (c) 2015 Zhou Xiaoyong <zhouxiaoyong@loongson.cn>
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* Zhang Shuangshuang <zhangshuangshuang@ict.ac.cn>
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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 "mpegvideo_mips.h"
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void ff_dct_unquantize_h263_intra_mmi(MpegEncContext *s, int16_t *block,
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int n, int qscale)
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{
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int64_t level, qmul, qadd, nCoeffs;
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qmul = qscale << 1;
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av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
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if (!s->h263_aic) {
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if (n<4)
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level = block[0] * s->y_dc_scale;
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else
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level = block[0] * s->c_dc_scale;
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qadd = (qscale-1) | 1;
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} else {
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qadd = 0;
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level = block[0];
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}
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if(s->ac_pred)
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nCoeffs = 63;
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else
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nCoeffs = s->inter_scantable.raster_end[s->block_last_index[n]];
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__asm__ volatile (
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"xor $f12, $f12, $f12 \r\n"
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"lwc1 $f12, %1 \n\r"
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"xor $f10, $f10, $f10 \r\n"
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"lwc1 $f10, %2 \r\n"
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"xor $f14, $f14, $f14 \r\n"
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"packsswh $f12, $f12, $f12 \r\n"
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"packsswh $f12, $f12, $f12 \r\n"
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"packsswh $f10, $f10, $f10 \r\n"
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"packsswh $f10, $f10, $f10 \r\n"
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"psubh $f14, $f14, $f10 \r\n"
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"xor $f8, $f8, $f8 \r\n"
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".p2align 4 \r\n"
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"1: \r\n"
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"daddu $8, %0, %3 \r\n"
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"gsldlc1 $f0, 7($8) \r\n"
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"gsldrc1 $f0, 0($8) \r\n"
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"gsldlc1 $f2, 15($8) \r\n"
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"gsldrc1 $f2, 8($8) \r\n"
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"mov.d $f4, $f0 \r\n"
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"mov.d $f6, $f2 \r\n"
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"pmullh $f0, $f0, $f12 \r\n"
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"pmullh $f2, $f2, $f12 \r\n"
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"pcmpgth $f4, $f4, $f8 \r\n"
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"pcmpgth $f6, $f6, $f8 \r\n"
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"xor $f0, $f0, $f4 \r\n"
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"xor $f2, $f2, $f6 \r\n"
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"paddh $f0, $f0, $f14 \r\n"
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"paddh $f2, $f2, $f14 \r\n"
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"xor $f4, $f4, $f0 \r\n"
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"xor $f6, $f6, $f2 \r\n"
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"pcmpeqh $f0, $f0, $f14 \r\n"
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"pcmpeqh $f2, $f2, $f14 \r\n"
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"pandn $f0, $f0, $f4 \r\n"
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"pandn $f2, $f2, $f6 \r\n"
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"gssdlc1 $f0, 7($8) \r\n"
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"gssdrc1 $f0, 0($8) \r\n"
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"gssdlc1 $f2, 15($8) \r\n"
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"gssdrc1 $f2, 8($8) \r\n"
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"addi %3, %3, 16 \r\n"
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"blez %3, 1b \r\n"
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::"r"(block+nCoeffs),"m"(qmul),"m"(qadd),"r"(2*(-nCoeffs))
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:"$8","memory"
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);
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block[0] = level;
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}
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void ff_dct_unquantize_h263_inter_mmi(MpegEncContext *s, int16_t *block,
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int n, int qscale)
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{
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int64_t qmul, qadd, nCoeffs;
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qmul = qscale << 1;
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qadd = (qscale - 1) | 1;
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av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
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nCoeffs = s->inter_scantable.raster_end[s->block_last_index[n]];
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__asm__ volatile (
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"xor $f12, $f12, $f12 \r\n"
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"lwc1 $f12, %1 \r\n"
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"xor $f10, $f10, $f10 \r\n"
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"lwc1 $f10, %2 \r\n"
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"packsswh $f12, $f12, $f12 \r\n"
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"packsswh $f12, $f12, $f12 \r\n"
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"xor $f14, $f14, $f14 \r\n"
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"packsswh $f10, $f10, $f10 \r\n"
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"packsswh $f10, $f10, $f10 \r\n"
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"psubh $f14, $f14, $f10 \r\n"
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"xor $f8, $f8, $f8 \r\n"
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".p2align 4 \r\n"
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"1: \r\n"
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"daddu $8, %0, %3 \r\n"
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"gsldlc1 $f0, 7($8) \r\n"
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"gsldrc1 $f0, 0($8) \r\n"
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"gsldlc1 $f2, 15($8) \r\n"
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"gsldrc1 $f2, 8($8) \r\n"
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"mov.d $f4, $f0 \r\n"
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"mov.d $f6, $f2 \r\n"
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"pmullh $f0, $f0, $f12 \r\n"
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"pmullh $f2, $f2, $f12 \r\n"
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"pcmpgth $f4, $f4, $f8 \r\n"
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"pcmpgth $f6, $f6, $f8 \r\n"
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"xor $f0, $f0, $f4 \r\n"
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"xor $f2, $f2, $f6 \r\n"
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"paddh $f0, $f0, $f14 \r\n"
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"paddh $f2, $f2, $f14 \r\n"
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"xor $f4, $f4, $f0 \r\n"
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"xor $f6, $f6, $f2 \r\n"
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"pcmpeqh $f0, $f0, $f14 \r\n"
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"pcmpeqh $f2, $f2, $f14 \r\n"
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"pandn $f0, $f0, $f4 \r\n"
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"pandn $f2, $f2, $f6 \r\n"
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"gssdlc1 $f0, 7($8) \r\n"
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"gssdrc1 $f0, 0($8) \r\n"
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"gssdlc1 $f2, 15($8) \r\n"
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"gssdrc1 $f2, 8($8) \r\n"
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"addi %3, %3, 16 \r\n"
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"blez %3, 1b \r\n"
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::"r"(block+nCoeffs),"m"(qmul),"m"(qadd),"r"(2*(-nCoeffs))
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: "$8","memory"
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);
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}
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void ff_dct_unquantize_mpeg1_intra_mmi(MpegEncContext *s, int16_t *block,
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int n, int qscale)
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{
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int64_t nCoeffs;
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const uint16_t *quant_matrix;
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int block0;
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av_assert2(s->block_last_index[n]>=0);
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nCoeffs = s->intra_scantable.raster_end[s->block_last_index[n]] + 1;
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if (n<4)
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block0 = block[0] * s->y_dc_scale;
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else
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block0 = block[0] * s->c_dc_scale;
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/* XXX: only mpeg1 */
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quant_matrix = s->intra_matrix;
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__asm__ volatile (
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"pcmpeqh $f14, $f14, $f14 \r\n"
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"dli $10, 15 \r\n"
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"dmtc1 $10, $f16 \r\n"
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"xor $f12, $f12, $f12 \r\n"
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"lwc1 $f12, %2 \r\n"
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"psrlh $f14, $f14, $f16 \r\n"
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"packsswh $f12, $f12, $f12 \r\n"
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"packsswh $f12, $f12, $f12 \r\n"
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"or $8, %3, $0 \r\n"
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".p2align 4 \r\n"
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"1: \r\n"
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"gsldxc1 $f0, 0($8, %0) \r\n"
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"gsldxc1 $f2, 8($8, %0) \r\n"
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"mov.d $f16, $f0 \r\n"
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"mov.d $f18, $f2 \r\n"
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"gsldxc1 $f8, 0($8, %1) \r\n"
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"gsldxc1 $f10, 8($8, %1) \r\n"
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"pmullh $f8, $f8, $f12 \r\n"
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"pmullh $f10, $f10, $f12 \r\n"
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"xor $f4, $f4, $f4 \r\n"
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"xor $f6, $f6, $f6 \r\n"
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"pcmpgth $f4, $f4, $f0 \r\n"
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"pcmpgth $f6, $f6, $f2 \r\n"
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"xor $f0, $f0, $f4 \r\n"
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"xor $f2, $f2, $f6 \r\n"
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"psubh $f0, $f0, $f4 \r\n"
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"psubh $f2, $f2, $f6 \r\n"
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"pmullh $f0, $f0, $f8 \r\n"
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"pmullh $f2, $f2, $f10 \r\n"
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"xor $f8, $f8, $f8 \r\n"
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"xor $f10, $f10, $f10 \r\n"
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"pcmpeqh $f8, $f8, $f16 \r\n"
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"pcmpeqh $f10, $f10, $f18 \r\n"
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"dli $10, 3 \r\n"
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"dmtc1 $10, $f16 \r\n"
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"psrah $f0, $f0, $f16 \r\n"
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"psrah $f2, $f2, $f16 \r\n"
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"psubh $f0, $f0, $f14 \r\n"
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"psubh $f2, $f2, $f14 \r\n"
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"or $f0, $f0, $f14 \r\n"
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"or $f2, $f2, $f14 \r\n"
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"xor $f0, $f0, $f4 \r\n"
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"xor $f2, $f2, $f6 \r\n"
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"psubh $f0, $f0, $f4 \r\n"
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"psubh $f2, $f2, $f6 \r\n"
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"pandn $f8, $f8, $f0 \r\n"
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"pandn $f10, $f10, $f2 \r\n"
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"gssdxc1 $f8, 0($8, %0) \r\n"
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"gssdxc1 $f10, 8($8, %0) \r\n"
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"addi $8, $8, 16 \r\n"
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"bltz $8, 1b \r\n"
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::"r"(block+nCoeffs),"r"(quant_matrix+nCoeffs),"m"(qscale),
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"g"(-2*nCoeffs)
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: "$8","$10","memory"
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);
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block[0] = block0;
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}
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void ff_dct_unquantize_mpeg1_inter_mmi(MpegEncContext *s, int16_t *block,
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int n, int qscale)
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{
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int64_t nCoeffs;
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const uint16_t *quant_matrix;
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av_assert2(s->block_last_index[n] >= 0);
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nCoeffs = s->intra_scantable.raster_end[s->block_last_index[n]] + 1;
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quant_matrix = s->inter_matrix;
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__asm__ volatile (
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"pcmpeqh $f14, $f14, $f14 \r\n"
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"dli $10, 15 \r\n"
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"dmtc1 $10, $f16 \r\n"
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"xor $f12, $f12, $f12 \r\n"
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"lwc1 $f12, %2 \r\n"
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"psrlh $f14, $f14, $f16 \r\n"
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"packsswh $f12, $f12, $f12 \r\n"
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"packsswh $f12, $f12, $f12 \r\n"
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"or $8, %3, $0 \r\n"
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".p2align 4 \r\n"
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"1: \r\n"
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"gsldxc1 $f0, 0($8, %0) \r\n"
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"gsldxc1 $f2, 8($8, %0) \r\n"
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"mov.d $f16, $f0 \r\n"
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"mov.d $f18, $f2 \r\n"
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"gsldxc1 $f8, 0($8, %1) \r\n"
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"gsldxc1 $f10, 8($8, %1) \r\n"
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"pmullh $f8, $f8, $f12 \r\n"
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"pmullh $f10, $f10, $f12 \r\n"
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"xor $f4, $f4, $f4 \r\n"
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"xor $f6, $f6, $f6 \r\n"
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"pcmpgth $f4, $f4, $f0 \r\n"
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"pcmpgth $f6, $f6, $f2 \r\n"
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"xor $f0, $f0, $f4 \r\n"
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"xor $f2, $f2, $f6 \r\n"
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"psubh $f0, $f0, $f4 \r\n"
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"psubh $f2, $f2, $f6 \r\n"
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"paddh $f0, $f0, $f0 \r\n"
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"paddh $f2, $f2, $f2 \r\n"
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"paddh $f0, $f0, $f14 \r\n"
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"paddh $f2, $f2, $f14 \r\n"
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"pmullh $f0, $f0, $f8 \r\n"
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"pmullh $f2, $f2, $f10 \r\n"
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"xor $f8, $f8, $f8 \r\n"
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"xor $f10, $f10, $f10 \r\n"
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"pcmpeqh $f8, $f8, $f16 \r\n"
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"pcmpeqh $f10, $f10, $f18 \r\n"
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"dli $10, 4 \r\n"
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"dmtc1 $10, $f16 \r\n"
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"psrah $f0, $f0, $f16 \r\n"
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"psrah $f2, $f2, $f16 \r\n"
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"psubh $f0, $f0, $f14 \r\n"
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"psubh $f2, $f2, $f14 \r\n"
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"or $f0, $f0, $f14 \r\n"
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"or $f2, $f2, $f14 \r\n"
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"xor $f0, $f0, $f4 \r\n"
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"xor $f2, $f2, $f6 \r\n"
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"psubh $f0, $f0, $f4 \r\n"
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"psubh $f2, $f2, $f6 \r\n"
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"pandn $f8, $f8, $f0 \r\n"
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"pandn $f10, $f10, $f2 \r\n"
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"gssdxc1 $f8, 0($8, %0) \r\n"
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"gssdxc1 $f10, 8($8, %0) \r\n"
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"addi $8, $8, 16 \r\n"
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"bltz $8, 1b \r\n"
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::"r"(block+nCoeffs),"r"(quant_matrix+nCoeffs),"m"(qscale),
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"g"(-2*nCoeffs)
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:"$8","$10","memory"
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);
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}
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