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+/*
+ * This file is part of FFmpeg.
+ *
+ * Copyright (c) 2023 J. Dekker <jdek@itanimul.li>
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+.macro clip min, max, regs:vararg
+.irp x, \regs
+ smax \x, \x, \min
+.endr
+.irp x, \regs
+ smin \x, \x, \max
+.endr
+.endm
+
+.macro transpose_8x8B r0, r1, r2, r3, r4, r5, r6, r7, r8, r9
+ trn1 \r8\().8b, \r0\().8b, \r1\().8b
+ trn2 \r9\().8b, \r0\().8b, \r1\().8b
+ trn1 \r1\().8b, \r2\().8b, \r3\().8b
+ trn2 \r3\().8b, \r2\().8b, \r3\().8b
+ trn1 \r0\().8b, \r4\().8b, \r5\().8b
+ trn2 \r5\().8b, \r4\().8b, \r5\().8b
+ trn1 \r2\().8b, \r6\().8b, \r7\().8b
+ trn2 \r7\().8b, \r6\().8b, \r7\().8b
+
+ trn1 \r4\().4h, \r0\().4h, \r2\().4h
+ trn2 \r2\().4h, \r0\().4h, \r2\().4h
+ trn1 \r6\().4h, \r5\().4h, \r7\().4h
+ trn2 \r7\().4h, \r5\().4h, \r7\().4h
+ trn1 \r5\().4h, \r9\().4h, \r3\().4h
+ trn2 \r9\().4h, \r9\().4h, \r3\().4h
+ trn1 \r3\().4h, \r8\().4h, \r1\().4h
+ trn2 \r8\().4h, \r8\().4h, \r1\().4h
+
+ trn1 \r0\().2s, \r3\().2s, \r4\().2s
+ trn2 \r4\().2s, \r3\().2s, \r4\().2s
+
+ trn1 \r1\().2s, \r5\().2s, \r6\().2s
+ trn2 \r5\().2s, \r5\().2s, \r6\().2s
+
+ trn2 \r6\().2s, \r8\().2s, \r2\().2s
+ trn1 \r2\().2s, \r8\().2s, \r2\().2s
+
+ trn1 \r3\().2s, \r9\().2s, \r7\().2s
+ trn2 \r7\().2s, \r9\().2s, \r7\().2s
+.endm
+
+.macro transpose_8x16B r0, r1, r2, r3, r4, r5, r6, r7, t0, t1
+ trn1 \t0\().16b, \r0\().16b, \r1\().16b
+ trn2 \t1\().16b, \r0\().16b, \r1\().16b
+ trn1 \r1\().16b, \r2\().16b, \r3\().16b
+ trn2 \r3\().16b, \r2\().16b, \r3\().16b
+ trn1 \r0\().16b, \r4\().16b, \r5\().16b
+ trn2 \r5\().16b, \r4\().16b, \r5\().16b
+ trn1 \r2\().16b, \r6\().16b, \r7\().16b
+ trn2 \r7\().16b, \r6\().16b, \r7\().16b
+
+ trn1 \r4\().8h, \r0\().8h, \r2\().8h
+ trn2 \r2\().8h, \r0\().8h, \r2\().8h
+ trn1 \r6\().8h, \r5\().8h, \r7\().8h
+ trn2 \r7\().8h, \r5\().8h, \r7\().8h
+ trn1 \r5\().8h, \t1\().8h, \r3\().8h
+ trn2 \t1\().8h, \t1\().8h, \r3\().8h
+ trn1 \r3\().8h, \t0\().8h, \r1\().8h
+ trn2 \t0\().8h, \t0\().8h, \r1\().8h
+
+ trn1 \r0\().4s, \r3\().4s, \r4\().4s
+ trn2 \r4\().4s, \r3\().4s, \r4\().4s
+
+ trn1 \r1\().4s, \r5\().4s, \r6\().4s
+ trn2 \r5\().4s, \r5\().4s, \r6\().4s
+
+ trn2 \r6\().4s, \t0\().4s, \r2\().4s
+ trn1 \r2\().4s, \t0\().4s, \r2\().4s
+
+ trn1 \r3\().4s, \t1\().4s, \r7\().4s
+ trn2 \r7\().4s, \t1\().4s, \r7\().4s
+.endm
+
+.macro transpose_4x16B r0, r1, r2, r3, t4, t5, t6, t7
+ trn1 \t4\().16b, \r0\().16b, \r1\().16b
+ trn2 \t5\().16b, \r0\().16b, \r1\().16b
+ trn1 \t6\().16b, \r2\().16b, \r3\().16b
+ trn2 \t7\().16b, \r2\().16b, \r3\().16b
+
+ trn1 \r0\().8h, \t4\().8h, \t6\().8h
+ trn2 \r2\().8h, \t4\().8h, \t6\().8h
+ trn1 \r1\().8h, \t5\().8h, \t7\().8h
+ trn2 \r3\().8h, \t5\().8h, \t7\().8h
+.endm
+
+.macro transpose_4x8B r0, r1, r2, r3, t4, t5, t6, t7
+ trn1 \t4\().8b, \r0\().8b, \r1\().8b
+ trn2 \t5\().8b, \r0\().8b, \r1\().8b
+ trn1 \t6\().8b, \r2\().8b, \r3\().8b
+ trn2 \t7\().8b, \r2\().8b, \r3\().8b
+
+ trn1 \r0\().4h, \t4\().4h, \t6\().4h
+ trn2 \r2\().4h, \t4\().4h, \t6\().4h
+ trn1 \r1\().4h, \t5\().4h, \t7\().4h
+ trn2 \r3\().4h, \t5\().4h, \t7\().4h
+.endm
+
+.macro transpose_4x4H r0, r1, r2, r3, r4, r5, r6, r7
+ trn1 \r4\().4h, \r0\().4h, \r1\().4h
+ trn2 \r5\().4h, \r0\().4h, \r1\().4h
+ trn1 \r6\().4h, \r2\().4h, \r3\().4h
+ trn2 \r7\().4h, \r2\().4h, \r3\().4h
+
+ trn1 \r0\().2s, \r4\().2s, \r6\().2s
+ trn2 \r2\().2s, \r4\().2s, \r6\().2s
+ trn1 \r1\().2s, \r5\().2s, \r7\().2s
+ trn2 \r3\().2s, \r5\().2s, \r7\().2s
+.endm
+
+.macro transpose_4x8H r0, r1, r2, r3, t4, t5, t6, t7
+ trn1 \t4\().8h, \r0\().8h, \r1\().8h
+ trn2 \t5\().8h, \r0\().8h, \r1\().8h
+ trn1 \t6\().8h, \r2\().8h, \r3\().8h
+ trn2 \t7\().8h, \r2\().8h, \r3\().8h
+
+ trn1 \r0\().4s, \t4\().4s, \t6\().4s
+ trn2 \r2\().4s, \t4\().4s, \t6\().4s
+ trn1 \r1\().4s, \t5\().4s, \t7\().4s
+ trn2 \r3\().4s, \t5\().4s, \t7\().4s
+.endm
+
+.macro transpose_8x8H r0, r1, r2, r3, r4, r5, r6, r7, r8, r9
+ trn1 \r8\().8h, \r0\().8h, \r1\().8h
+ trn2 \r9\().8h, \r0\().8h, \r1\().8h
+ trn1 \r1\().8h, \r2\().8h, \r3\().8h
+ trn2 \r3\().8h, \r2\().8h, \r3\().8h
+ trn1 \r0\().8h, \r4\().8h, \r5\().8h
+ trn2 \r5\().8h, \r4\().8h, \r5\().8h
+ trn1 \r2\().8h, \r6\().8h, \r7\().8h
+ trn2 \r7\().8h, \r6\().8h, \r7\().8h
+
+ trn1 \r4\().4s, \r0\().4s, \r2\().4s
+ trn2 \r2\().4s, \r0\().4s, \r2\().4s
+ trn1 \r6\().4s, \r5\().4s, \r7\().4s
+ trn2 \r7\().4s, \r5\().4s, \r7\().4s
+ trn1 \r5\().4s, \r9\().4s, \r3\().4s
+ trn2 \r9\().4s, \r9\().4s, \r3\().4s
+ trn1 \r3\().4s, \r8\().4s, \r1\().4s
+ trn2 \r8\().4s, \r8\().4s, \r1\().4s
+
+ trn1 \r0\().2d, \r3\().2d, \r4\().2d
+ trn2 \r4\().2d, \r3\().2d, \r4\().2d
+
+ trn1 \r1\().2d, \r5\().2d, \r6\().2d
+ trn2 \r5\().2d, \r5\().2d, \r6\().2d
+
+ trn2 \r6\().2d, \r8\().2d, \r2\().2d
+ trn1 \r2\().2d, \r8\().2d, \r2\().2d
+
+ trn1 \r3\().2d, \r9\().2d, \r7\().2d
+ trn2 \r7\().2d, \r9\().2d, \r7\().2d
+
+.endm