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cdb1665f70
Previously, ff_h264_idct_add_neon (originally in the arm version) used
a non-regular transpose in order to be able to use more instructions
that deal with registers as 128 bit register pairs. The aarch64
translation doesn't do it to the same extent, but brought along the
same structure since it was a straight translation.
This reshuffles ff_h264_idct_add_neon, bringing it closer to
the C implementation, making the transpose_4x4H macro do a regular
transpose, usable for other algorithms as well.
Previously, the third and fourth output from transpose_4x4H were
swapped, and prior to cc29d96d5a, the same inputs as well. In
addition to just swapping the outputs, also renumber the intermediate
registers for better readability (making the register order match
transpose_4x8B).
This runs with the same number of cycles as before.
Signed-off-by: Martin Storsjö <martin@martin.st>
150 lines
6.6 KiB
ArmAsm
150 lines
6.6 KiB
ArmAsm
/*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 Libav; 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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.macro transpose_8x8B r0, r1, r2, r3, r4, r5, r6, r7, r8, r9
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trn1 \r8\().8B, \r0\().8B, \r1\().8B
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trn2 \r9\().8B, \r0\().8B, \r1\().8B
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trn1 \r1\().8B, \r2\().8B, \r3\().8B
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trn2 \r3\().8B, \r2\().8B, \r3\().8B
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trn1 \r0\().8B, \r4\().8B, \r5\().8B
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trn2 \r5\().8B, \r4\().8B, \r5\().8B
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trn1 \r2\().8B, \r6\().8B, \r7\().8B
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trn2 \r7\().8B, \r6\().8B, \r7\().8B
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trn1 \r4\().4H, \r0\().4H, \r2\().4H
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trn2 \r2\().4H, \r0\().4H, \r2\().4H
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trn1 \r6\().4H, \r5\().4H, \r7\().4H
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trn2 \r7\().4H, \r5\().4H, \r7\().4H
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trn1 \r5\().4H, \r9\().4H, \r3\().4H
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trn2 \r9\().4H, \r9\().4H, \r3\().4H
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trn1 \r3\().4H, \r8\().4H, \r1\().4H
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trn2 \r8\().4H, \r8\().4H, \r1\().4H
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trn1 \r0\().2S, \r3\().2S, \r4\().2S
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trn2 \r4\().2S, \r3\().2S, \r4\().2S
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trn1 \r1\().2S, \r5\().2S, \r6\().2S
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trn2 \r5\().2S, \r5\().2S, \r6\().2S
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trn2 \r6\().2S, \r8\().2S, \r2\().2S
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trn1 \r2\().2S, \r8\().2S, \r2\().2S
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trn1 \r3\().2S, \r9\().2S, \r7\().2S
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trn2 \r7\().2S, \r9\().2S, \r7\().2S
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.endm
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.macro transpose_8x16B r0, r1, r2, r3, r4, r5, r6, r7, t0, t1
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trn1 \t0\().16B, \r0\().16B, \r1\().16B
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trn2 \t1\().16B, \r0\().16B, \r1\().16B
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trn1 \r1\().16B, \r2\().16B, \r3\().16B
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trn2 \r3\().16B, \r2\().16B, \r3\().16B
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trn1 \r0\().16B, \r4\().16B, \r5\().16B
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trn2 \r5\().16B, \r4\().16B, \r5\().16B
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trn1 \r2\().16B, \r6\().16B, \r7\().16B
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trn2 \r7\().16B, \r6\().16B, \r7\().16B
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trn1 \r4\().8H, \r0\().8H, \r2\().8H
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trn2 \r2\().8H, \r0\().8H, \r2\().8H
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trn1 \r6\().8H, \r5\().8H, \r7\().8H
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trn2 \r7\().8H, \r5\().8H, \r7\().8H
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trn1 \r5\().8H, \t1\().8H, \r3\().8H
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trn2 \t1\().8H, \t1\().8H, \r3\().8H
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trn1 \r3\().8H, \t0\().8H, \r1\().8H
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trn2 \t0\().8H, \t0\().8H, \r1\().8H
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trn1 \r0\().4S, \r3\().4S, \r4\().4S
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trn2 \r4\().4S, \r3\().4S, \r4\().4S
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trn1 \r1\().4S, \r5\().4S, \r6\().4S
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trn2 \r5\().4S, \r5\().4S, \r6\().4S
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trn2 \r6\().4S, \t0\().4S, \r2\().4S
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trn1 \r2\().4S, \t0\().4S, \r2\().4S
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trn1 \r3\().4S, \t1\().4S, \r7\().4S
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trn2 \r7\().4S, \t1\().4S, \r7\().4S
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.endm
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.macro transpose_4x16B r0, r1, r2, r3, t4, t5, t6, t7
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trn1 \t4\().16B, \r0\().16B, \r1\().16B
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trn2 \t5\().16B, \r0\().16B, \r1\().16B
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trn1 \t6\().16B, \r2\().16B, \r3\().16B
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trn2 \t7\().16B, \r2\().16B, \r3\().16B
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trn1 \r0\().8H, \t4\().8H, \t6\().8H
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trn2 \r2\().8H, \t4\().8H, \t6\().8H
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trn1 \r1\().8H, \t5\().8H, \t7\().8H
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trn2 \r3\().8H, \t5\().8H, \t7\().8H
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.endm
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.macro transpose_4x8B r0, r1, r2, r3, t4, t5, t6, t7
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trn1 \t4\().8B, \r0\().8B, \r1\().8B
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trn2 \t5\().8B, \r0\().8B, \r1\().8B
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trn1 \t6\().8B, \r2\().8B, \r3\().8B
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trn2 \t7\().8B, \r2\().8B, \r3\().8B
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trn1 \r0\().4H, \t4\().4H, \t6\().4H
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trn2 \r2\().4H, \t4\().4H, \t6\().4H
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trn1 \r1\().4H, \t5\().4H, \t7\().4H
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trn2 \r3\().4H, \t5\().4H, \t7\().4H
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.endm
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.macro transpose_4x4H r0, r1, r2, r3, r4, r5, r6, r7
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trn1 \r4\().4H, \r0\().4H, \r1\().4H
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trn2 \r5\().4H, \r0\().4H, \r1\().4H
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trn1 \r6\().4H, \r2\().4H, \r3\().4H
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trn2 \r7\().4H, \r2\().4H, \r3\().4H
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trn1 \r0\().2S, \r4\().2S, \r6\().2S
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trn2 \r2\().2S, \r4\().2S, \r6\().2S
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trn1 \r1\().2S, \r5\().2S, \r7\().2S
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trn2 \r3\().2S, \r5\().2S, \r7\().2S
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.endm
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.macro transpose_8x8H r0, r1, r2, r3, r4, r5, r6, r7, r8, r9
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trn1 \r8\().8H, \r0\().8H, \r1\().8H
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trn2 \r9\().8H, \r0\().8H, \r1\().8H
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trn1 \r1\().8H, \r2\().8H, \r3\().8H
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trn2 \r3\().8H, \r2\().8H, \r3\().8H
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trn1 \r0\().8H, \r4\().8H, \r5\().8H
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trn2 \r5\().8H, \r4\().8H, \r5\().8H
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trn1 \r2\().8H, \r6\().8H, \r7\().8H
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trn2 \r7\().8H, \r6\().8H, \r7\().8H
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trn1 \r4\().4S, \r0\().4S, \r2\().4S
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trn2 \r2\().4S, \r0\().4S, \r2\().4S
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trn1 \r6\().4S, \r5\().4S, \r7\().4S
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trn2 \r7\().4S, \r5\().4S, \r7\().4S
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trn1 \r5\().4S, \r9\().4S, \r3\().4S
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trn2 \r9\().4S, \r9\().4S, \r3\().4S
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trn1 \r3\().4S, \r8\().4S, \r1\().4S
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trn2 \r8\().4S, \r8\().4S, \r1\().4S
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trn1 \r0\().2D, \r3\().2D, \r4\().2D
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trn2 \r4\().2D, \r3\().2D, \r4\().2D
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trn1 \r1\().2D, \r5\().2D, \r6\().2D
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trn2 \r5\().2D, \r5\().2D, \r6\().2D
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trn2 \r6\().2D, \r8\().2D, \r2\().2D
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trn1 \r2\().2D, \r8\().2D, \r2\().2D
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trn1 \r3\().2D, \r9\().2D, \r7\().2D
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trn2 \r7\().2D, \r9\().2D, \r7\().2D
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.endm
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