165 lines
8.3 KiB
C
165 lines
8.3 KiB
C
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/*
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* Copyright (c) 2012
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* MIPS Technologies, Inc., California.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the MIPS Technologies, Inc., nor the names of is
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Author: Zoran Lukic (zoranl@mips.com)
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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 "config.h"
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#include "libavcodec/dsputil.h"
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static void vector_fmul_window_mips(float *dst, const float *src0,
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const float *src1, const float *win, int len)
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{
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int i, j;
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/*
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* variables used in inline assembler
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*/
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float * dst_i, * dst_j, * dst_i2, * dst_j2;
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float temp, temp1, temp2, temp3, temp4, temp5, temp6, temp7;
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dst += len;
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win += len;
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src0 += len;
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for (i = -len, j = len - 1; i < 0; i += 8, j -= 8) {
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dst_i = dst + i;
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dst_j = dst + j;
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dst_i2 = dst + i + 4;
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dst_j2 = dst + j - 4;
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__asm__ volatile (
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"mul.s %[temp], %[s1], %[wi] \n\t"
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"mul.s %[temp1], %[s1], %[wj] \n\t"
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"mul.s %[temp2], %[s11], %[wi1] \n\t"
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"mul.s %[temp3], %[s11], %[wj1] \n\t"
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"msub.s %[temp], %[temp], %[s0], %[wj] \n\t"
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"madd.s %[temp1], %[temp1], %[s0], %[wi] \n\t"
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"msub.s %[temp2], %[temp2], %[s01], %[wj1] \n\t"
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"madd.s %[temp3], %[temp3], %[s01], %[wi1] \n\t"
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"swc1 %[temp], 0(%[dst_i]) \n\t" /* dst[i] = s0*wj - s1*wi; */
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"swc1 %[temp1], 0(%[dst_j]) \n\t" /* dst[j] = s0*wi + s1*wj; */
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"swc1 %[temp2], 4(%[dst_i]) \n\t" /* dst[i+1] = s01*wj1 - s11*wi1; */
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"swc1 %[temp3], -4(%[dst_j]) \n\t" /* dst[j-1] = s01*wi1 + s11*wj1; */
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"mul.s %[temp4], %[s12], %[wi2] \n\t"
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"mul.s %[temp5], %[s12], %[wj2] \n\t"
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"mul.s %[temp6], %[s13], %[wi3] \n\t"
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"mul.s %[temp7], %[s13], %[wj3] \n\t"
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"msub.s %[temp4], %[temp4], %[s02], %[wj2] \n\t"
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"madd.s %[temp5], %[temp5], %[s02], %[wi2] \n\t"
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"msub.s %[temp6], %[temp6], %[s03], %[wj3] \n\t"
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"madd.s %[temp7], %[temp7], %[s03], %[wi3] \n\t"
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"swc1 %[temp4], 8(%[dst_i]) \n\t" /* dst[i+2] = s02*wj2 - s12*wi2; */
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"swc1 %[temp5], -8(%[dst_j]) \n\t" /* dst[j-2] = s02*wi2 + s12*wj2; */
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"swc1 %[temp6], 12(%[dst_i]) \n\t" /* dst[i+2] = s03*wj3 - s13*wi3; */
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"swc1 %[temp7], -12(%[dst_j]) \n\t" /* dst[j-3] = s03*wi3 + s13*wj3; */
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: [temp]"=&f"(temp), [temp1]"=&f"(temp1), [temp2]"=&f"(temp2),
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[temp3]"=&f"(temp3), [temp4]"=&f"(temp4), [temp5]"=&f"(temp5),
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[temp6]"=&f"(temp6), [temp7]"=&f"(temp7)
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: [dst_j]"r"(dst_j), [dst_i]"r" (dst_i),
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[s0] "f"(src0[i]), [wj] "f"(win[j]), [s1] "f"(src1[j]),
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[wi] "f"(win[i]), [s01]"f"(src0[i + 1]),[wj1]"f"(win[j - 1]),
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[s11]"f"(src1[j - 1]), [wi1]"f"(win[i + 1]), [s02]"f"(src0[i + 2]),
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[wj2]"f"(win[j - 2]), [s12]"f"(src1[j - 2]),[wi2]"f"(win[i + 2]),
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[s03]"f"(src0[i + 3]), [wj3]"f"(win[j - 3]), [s13]"f"(src1[j - 3]),
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[wi3]"f"(win[i + 3])
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: "memory"
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);
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__asm__ volatile (
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"mul.s %[temp], %[s1], %[wi] \n\t"
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"mul.s %[temp1], %[s1], %[wj] \n\t"
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"mul.s %[temp2], %[s11], %[wi1] \n\t"
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"mul.s %[temp3], %[s11], %[wj1] \n\t"
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"msub.s %[temp], %[temp], %[s0], %[wj] \n\t"
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"madd.s %[temp1], %[temp1], %[s0], %[wi] \n\t"
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"msub.s %[temp2], %[temp2], %[s01], %[wj1] \n\t"
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"madd.s %[temp3], %[temp3], %[s01], %[wi1] \n\t"
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"swc1 %[temp], 0(%[dst_i2]) \n\t" /* dst[i] = s0*wj - s1*wi; */
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"swc1 %[temp1], 0(%[dst_j2]) \n\t" /* dst[j] = s0*wi + s1*wj; */
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"swc1 %[temp2], 4(%[dst_i2]) \n\t" /* dst[i+1] = s01*wj1 - s11*wi1; */
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"swc1 %[temp3], -4(%[dst_j2]) \n\t" /* dst[j-1] = s01*wi1 + s11*wj1; */
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"mul.s %[temp4], %[s12], %[wi2] \n\t"
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"mul.s %[temp5], %[s12], %[wj2] \n\t"
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"mul.s %[temp6], %[s13], %[wi3] \n\t"
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"mul.s %[temp7], %[s13], %[wj3] \n\t"
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"msub.s %[temp4], %[temp4], %[s02], %[wj2] \n\t"
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"madd.s %[temp5], %[temp5], %[s02], %[wi2] \n\t"
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"msub.s %[temp6], %[temp6], %[s03], %[wj3] \n\t"
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"madd.s %[temp7], %[temp7], %[s03], %[wi3] \n\t"
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"swc1 %[temp4], 8(%[dst_i2]) \n\t" /* dst[i+2] = s02*wj2 - s12*wi2; */
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"swc1 %[temp5], -8(%[dst_j2]) \n\t" /* dst[j-2] = s02*wi2 + s12*wj2; */
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"swc1 %[temp6], 12(%[dst_i2]) \n\t" /* dst[i+2] = s03*wj3 - s13*wi3; */
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"swc1 %[temp7], -12(%[dst_j2]) \n\t" /* dst[j-3] = s03*wi3 + s13*wj3; */
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: [temp]"=&f"(temp),
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[temp1]"=&f"(temp1), [temp2]"=&f"(temp2), [temp3]"=&f"(temp3),
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[temp4]"=&f"(temp4), [temp5]"=&f"(temp5), [temp6]"=&f"(temp6),
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[temp7] "=&f" (temp7)
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: [dst_j2]"r"(dst_j2), [dst_i2]"r"(dst_i2),
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[s0] "f"(src0[i + 4]), [wj] "f"(win[j - 4]), [s1] "f"(src1[j - 4]),
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[wi] "f"(win[i + 4]), [s01]"f"(src0[i + 5]),[wj1]"f"(win[j - 5]),
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[s11]"f"(src1[j - 5]), [wi1]"f"(win[i + 5]), [s02]"f"(src0[i + 6]),
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[wj2]"f"(win[j - 6]), [s12]"f"(src1[j - 6]),[wi2]"f"(win[i + 6]),
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[s03]"f"(src0[i + 7]), [wj3]"f"(win[j - 7]), [s13]"f"(src1[j - 7]),
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[wi3]"f"(win[i + 7])
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: "memory"
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);
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}
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}
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av_cold void ff_dsputil_init_mips( DSPContext* c, AVCodecContext *avctx )
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{
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c->vector_fmul_window = vector_fmul_window_mips;
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}
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