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66 lines
2.1 KiB
66 lines
2.1 KiB
/* |
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* Copyright © 2022 Rémi Denis-Courmont. |
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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 "libavutil/riscv/asm.S" |
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func ff_put_pixels_clamped_rvv, zve64x |
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lpad 0 |
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li t0, 8 * 8 |
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vsetvli zero, t0, e16, m8, ta, ma |
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vle16.v v24, (a0) |
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/* RVV only has signed-signed and unsigned-unsigned clipping. |
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* We need two steps for signed-to-unsigned clipping. */ |
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vmax.vx v24, v24, zero |
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vsetvli zero, zero, e8, m4, ta, ma |
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vnclipu.wi v16, v24, 0 |
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vsetivli zero, 8, e8, mf2, ta, ma |
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vsse64.v v16, (a1), a2 |
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ret |
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endfunc |
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func ff_put_signed_pixels_clamped_rvv, zve64x |
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lpad 0 |
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li t0, 8 * 8 |
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vsetvli zero, t0, e8, m4, ta, ma |
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vle16.v v24, (a0) |
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li t1, 128 |
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vnclip.wi v16, v24, 0 |
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vadd.vx v16, v16, t1 |
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vsetivli zero, 8, e8, mf2, ta, ma |
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vsse64.v v16, (a1), a2 |
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ret |
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endfunc |
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func ff_add_pixels_clamped_rvv, zve64x |
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lpad 0 |
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vsetivli zero, 8, e8, mf2, ta, ma |
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li t0, 8 * 8 |
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vlse64.v v16, (a1), a2 |
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vsetvli zero, t0, e8, m4, ta, ma |
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vle16.v v24, (a0) |
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vwaddu.wv v24, v24, v16 |
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vsetvli zero, zero, e16, m8, ta, ma |
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vmax.vx v24, v24, zero |
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vsetvli zero, zero, e8, m4, ta, ma |
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vnclipu.wi v16, v24, 0 |
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vsetivli zero, 8, e8, mf2, ta, ma |
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vsse64.v v16, (a1), a2 |
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ret |
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endfunc
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