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138 lines
4.8 KiB
138 lines
4.8 KiB
/* |
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* Loongson LSX optimized swscale |
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* |
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* Copyright (c) 2023 Loongson Technology Corporation Limited |
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* Contributed by Lu Wang <wanglu@loongson.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 "libavcodec/loongarch/loongson_asm.S" |
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/* static void ff_yuv2planeX_8_lsx(const int16_t *filter, int filterSize, |
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* const int16_t **src, uint8_t *dest, int dstW, |
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* const uint8_t *dither, int offset) |
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*/ |
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function ff_yuv2planeX_8_lsx |
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addi.w t1, a6, 1 |
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addi.w t2, a6, 2 |
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addi.w t3, a6, 3 |
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addi.w t4, a6, 4 |
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addi.w t5, a6, 5 |
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addi.w t6, a6, 6 |
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addi.w t7, a6, 7 |
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andi t0, a6, 7 |
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andi t1, t1, 7 |
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andi t2, t2, 7 |
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andi t3, t3, 7 |
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andi t4, t4, 7 |
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andi t5, t5, 7 |
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andi t6, t6, 7 |
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andi t7, t7, 7 |
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ldx.bu t0, a5, t0 |
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ldx.bu t1, a5, t1 |
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ldx.bu t2, a5, t2 |
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ldx.bu t3, a5, t3 |
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ldx.bu t4, a5, t4 |
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ldx.bu t5, a5, t5 |
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ldx.bu t6, a5, t6 |
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ldx.bu t7, a5, t7 |
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vreplgr2vr.w vr0, t0 |
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vreplgr2vr.w vr1, t1 |
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vreplgr2vr.w vr2, t2 |
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vreplgr2vr.w vr3, t3 |
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vreplgr2vr.w vr4, t4 |
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vreplgr2vr.w vr5, t5 |
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vreplgr2vr.w vr6, t6 |
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vreplgr2vr.w vr7, t7 |
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vilvl.w vr0, vr2, vr0 |
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vilvl.w vr4, vr6, vr4 |
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vilvl.w vr1, vr3, vr1 |
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vilvl.w vr5, vr7, vr5 |
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vilvl.d vr12, vr4, vr0 |
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vilvl.d vr13, vr5, vr1 |
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li.w t5, 0 |
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li.w t8, 8 |
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bge a4, t8, .WIDTH8 |
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blt zero, a4, .WIDTH |
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b .END |
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.WIDTH8: |
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li.d t1, 0 |
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li.d t4, 0 |
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vslli.w vr2, vr12, 12 |
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vslli.w vr3, vr13, 12 |
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move t3, a0 |
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.FILTERSIZE8: |
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ldx.d t2, a2, t1 |
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vldx vr4, t2, t5 |
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vldrepl.h vr5, t3, 0 |
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vmaddwev.w.h vr2, vr4, vr5 |
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vmaddwod.w.h vr3, vr4, vr5 |
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addi.d t1, t1, 8 |
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addi.d t3, t3, 2 |
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addi.d t4, t4, 1 |
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blt t4, a1, .FILTERSIZE8 |
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vsrai.w vr2, vr2, 19 |
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vsrai.w vr3, vr3, 19 |
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vclip255.w vr2, vr2 |
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vclip255.w vr3, vr3 |
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vpickev.h vr2, vr3, vr2 |
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vpickev.b vr2, vr2, vr2 |
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vbsrl.v vr3, vr2, 4 |
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vilvl.b vr2, vr3, vr2 |
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fst.d f2, a3, 0 |
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addi.d t5, t5, 16 |
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addi.d a4, a4, -8 |
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addi.d a3, a3, 8 |
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bge a4, t8, .WIDTH8 |
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blt zero, a4, .WIDTH |
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b .END |
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.WIDTH: |
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li.d t1, 0 |
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li.d t4, 0 |
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vslli.w vr2, vr12, 12 |
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vslli.w vr3, vr13, 12 |
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.FILTERSIZE: |
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ldx.d t2, a2, t1 |
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vldx vr4, t2, t5 |
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vldrepl.h vr5, a0, 0 |
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vmaddwev.w.h vr2, vr4, vr5 |
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vmaddwod.w.h vr3, vr4, vr5 |
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addi.d t1, t1, 8 |
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addi.d a0, a0, 2 |
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addi.d t4, t4, 1 |
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blt t4, a1, .FILTERSIZE |
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vsrai.w vr2, vr2, 19 |
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vsrai.w vr3, vr3, 19 |
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vclip255.w vr2, vr2 |
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vclip255.w vr3, vr3 |
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vpickev.h vr2, vr3, vr2 |
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vpickev.b vr2, vr2, vr2 |
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vbsrl.v vr3, vr2, 4 |
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vilvl.b vr2, vr3, vr2 |
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.DEST: |
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vstelm.b vr2, a3, 0, 0 |
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vbsrl.v vr2, vr2, 1 |
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addi.d a4, a4, -1 |
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addi.d a3, a3, 1 |
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blt zero, a4, .DEST |
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.END: |
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endfunc
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