[FFmpeg-cvslog] Merge commit '118dd4a321a2d67f67c21b076abd0b4d939ab642'
James Almer
git at videolan.org
Tue Oct 31 01:02:01 EET 2017
ffmpeg | branch: master | James Almer <jamrial at gmail.com> | Mon Oct 30 19:56:29 2017 -0300| [e9e7e1cc6b8a7ec573df10e1eef7ea8d7bf25668] | committer: James Almer
Merge commit '118dd4a321a2d67f67c21b076abd0b4d939ab642'
* commit '118dd4a321a2d67f67c21b076abd0b4d939ab642':
hevc: 16x16 NEON idct: Use the right element size for loads/stores
Merged-by: James Almer <jamrial at gmail.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e9e7e1cc6b8a7ec573df10e1eef7ea8d7bf25668
---
libavcodec/arm/hevcdsp_idct_neon.S | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/libavcodec/arm/hevcdsp_idct_neon.S b/libavcodec/arm/hevcdsp_idct_neon.S
index 0b286fadbb..83ac0c14bc 100644
--- a/libavcodec/arm/hevcdsp_idct_neon.S
+++ b/libavcodec/arm/hevcdsp_idct_neon.S
@@ -594,10 +594,10 @@ endfunc
butterfly q10, q14, q2, q5
butterfly q11, q15, q3, q4
add r4, sp, #512
- vst1.s16 {q0-q1}, [r4, :128]!
- vst1.s16 {q2-q3}, [r4, :128]!
- vst1.s16 {q4-q5}, [r4, :128]!
- vst1.s16 {q6-q7}, [r4, :128]
+ vst1.s32 {q0-q1}, [r4, :128]!
+ vst1.s32 {q2-q3}, [r4, :128]!
+ vst1.s32 {q4-q5}, [r4, :128]!
+ vst1.s32 {q6-q7}, [r4, :128]
.endm
.macro load16 in0, in1, in2, in3, in4, in5, in6, in7
@@ -689,8 +689,8 @@ function func_tr_16x4_\name
add_member d7, d1[3], d1[2], d1[1], d1[0], d0[3], d0[2], d0[1], d0[0], +, -, +, -, +, -, +, -
add r4, sp, #512
- vld1.s16 {q0-q1}, [r4, :128]!
- vld1.s16 {q2-q3}, [r4, :128]!
+ vld1.s32 {q0-q1}, [r4, :128]!
+ vld1.s32 {q2-q3}, [r4, :128]!
butterfly16 q0, q5, q1, q6, q2, q7, q3, q8
scale d26, d27, d28, d29, d30, d31, d16, d17, q4, q0, q5, q1, q6, q2, q7, q3, \shift
@@ -703,8 +703,8 @@ function func_tr_16x4_\name
store16 d26, d27, d28, d29, d30, d31, d16, d17
add r4, sp, #576
- vld1.s16 {q0-q1}, [r4, :128]!
- vld1.s16 {q2-q3}, [r4, :128]
+ vld1.s32 {q0-q1}, [r4, :128]!
+ vld1.s32 {q2-q3}, [r4, :128]
butterfly16 q0, q9, q1, q10, q2, q11, q3, q12
scale d26, d27, d28, d29, d30, d31, d8, d9, q4, q0, q9, q1, q10, q2, q11, q3, \shift
transpose8_4x4 d26, d28, d30, d8
======================================================================
diff --cc libavcodec/arm/hevcdsp_idct_neon.S
index 0b286fadbb,0000000000..83ac0c14bc
mode 100644,000000..100644
--- a/libavcodec/arm/hevcdsp_idct_neon.S
+++ b/libavcodec/arm/hevcdsp_idct_neon.S
@@@ -1,773 -1,0 +1,773 @@@
+/*
+ * ARM NEON optimised IDCT functions for HEVC decoding
+ * Copyright (c) 2014 Seppo Tomperi <seppo.tomperi at vtt.fi>
+ * Copyright (c) 2017 Alexandra Hájková
+ *
+ * This file is part of FFmpeg.
+ *
+ * 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
+ */
+
+#include "libavutil/arm/asm.S"
+
+const trans, align=4
+ .short 64, 83, 64, 36
+ .short 89, 75, 50, 18
+ .short 90, 87, 80, 70
+ .short 57, 43, 25, 9
+endconst
+
+.macro clip10 in1, in2, c1, c2
+ vmax.s16 \in1, \in1, \c1
+ vmax.s16 \in2, \in2, \c1
+ vmin.s16 \in1, \in1, \c2
+ vmin.s16 \in2, \in2, \c2
+.endm
+
+function ff_hevc_add_residual_4x4_8_neon, export=1
+ vld1.16 {q0-q1}, [r1, :128]
+ vld1.32 d4[0], [r0, :32], r2
+ vld1.32 d4[1], [r0, :32], r2
+ vld1.32 d5[0], [r0, :32], r2
+ vld1.32 d5[1], [r0, :32], r2
+ sub r0, r0, r2, lsl #2
+ vmovl.u8 q8, d4
+ vmovl.u8 q9, d5
+ vqadd.s16 q0, q0, q8
+ vqadd.s16 q1, q1, q9
+ vqmovun.s16 d0, q0
+ vqmovun.s16 d1, q1
+ vst1.32 d0[0], [r0, :32], r2
+ vst1.32 d0[1], [r0, :32], r2
+ vst1.32 d1[0], [r0, :32], r2
+ vst1.32 d1[1], [r0, :32], r2
+ bx lr
+endfunc
+
+function ff_hevc_add_residual_4x4_10_neon, export=1
+ mov r12, r0
+ vld1.16 {q0-q1}, [r1, :128]
+ vld1.16 d4, [r12, :64], r2
+ vld1.16 d5, [r12, :64], r2
+ vld1.16 d6, [r12, :64], r2
+ vqadd.s16 q0, q2
+ vld1.16 d7, [r12, :64], r2
+ vmov.s16 q12, #0
+ vqadd.s16 q1, q3
+ vmvn.s16 q13, #0xFC00 @ vmov.s16 #0x3FF
+ clip10 q0, q1, q12, q13
+ vst1.16 d0, [r0, :64], r2
+ vst1.16 d1, [r0, :64], r2
+ vst1.16 d2, [r0, :64], r2
+ vst1.16 d3, [r0, :64], r2
+ bx lr
+endfunc
+
+function ff_hevc_add_residual_8x8_8_neon, export=1
+ add r12, r0, r2
+ add r2, r2, r2
+ mov r3, #8
+1: subs r3, #2
+ vld1.8 {d16}, [r0, :64]
+ vld1.8 {d17}, [r12, :64]
+ vmovl.u8 q9, d16
+ vld1.16 {q0-q1}, [r1, :128]!
+ vmovl.u8 q8, d17
+ vqadd.s16 q0, q9
+ vqadd.s16 q1, q8
+ vqmovun.s16 d0, q0
+ vqmovun.s16 d1, q1
+ vst1.8 d0, [r0, :64], r2
+ vst1.8 d1, [r12, :64], r2
+ bne 1b
+ bx lr
+endfunc
+
+function ff_hevc_add_residual_8x8_10_neon, export=1
+ add r12, r0, r2
+ add r2, r2, r2
+ mov r3, #8
+ vmov.s16 q12, #0
+ vmvn.s16 q13, #0xFC00 @ vmov.s16 #0x3FF
+1: subs r3, #2
+ vld1.16 {q0-q1}, [r1, :128]!
+ vld1.16 {q8}, [r0, :128]
+ vqadd.s16 q0, q8
+ vld1.16 {q9}, [r12, :128]
+ vqadd.s16 q1, q9
+ clip10 q0, q1, q12, q13
+ vst1.16 {q0}, [r0, :128], r2
+ vst1.16 {q1}, [r12, :128], r2
+ bne 1b
+ bx lr
+endfunc
+
+function ff_hevc_add_residual_16x16_8_neon, export=1
+ mov r3, #16
+ add r12, r0, r2
+ add r2, r2, r2
+1: subs r3, #2
+ vld1.8 {q8}, [r0, :128]
+ vld1.16 {q0, q1}, [r1, :128]!
+ vld1.8 {q11}, [r12, :128]
+ vld1.16 {q2, q3}, [r1, :128]!
+ vmovl.u8 q9, d16
+ vmovl.u8 q10, d17
+ vmovl.u8 q12, d22
+ vmovl.u8 q13, d23
+ vqadd.s16 q0, q9
+ vqadd.s16 q1, q10
+ vqadd.s16 q2, q12
+ vqadd.s16 q3, q13
+ vqmovun.s16 d0, q0
+ vqmovun.s16 d1, q1
+ vqmovun.s16 d2, q2
+ vqmovun.s16 d3, q3
+ vst1.8 {q0}, [r0, :128], r2
+ vst1.8 {q1}, [r12, :128], r2
+ bne 1b
+ bx lr
+endfunc
+
+function ff_hevc_add_residual_16x16_10_neon, export=1
+ mov r3, #16
+ vmov.s16 q12, #0
+ vmvn.s16 q13, #0xFC00 @ vmov.s16 #0x3FF
+ add r12, r0, r2
+ add r2, r2, r2
+1: subs r3, #2
+ vld1.16 {q8-q9}, [r0, :128]
+ vld1.16 {q0, q1}, [r1, :128]!
+ vqadd.s16 q0, q8
+ vld1.16 {q10-q11}, [r12, :128]
+ vqadd.s16 q1, q9
+ vld1.16 {q2, q3}, [r1, :128]!
+ vqadd.s16 q2, q10
+ vqadd.s16 q3, q11
+ clip10 q0, q1, q12, q13
+ clip10 q2, q3, q12, q13
+ vst1.16 {q0-q1}, [r0, :128], r2
+ vst1.16 {q2-q3}, [r12, :128], r2
+ bne 1b
+ bx lr
+endfunc
+
+function ff_hevc_add_residual_32x32_8_neon, export=1
+ vpush {q4-q7}
+ add r12, r0, r2
+ add r2, r2, r2
+ mov r3, #32
+1: subs r3, #2
+ vld1.8 {q12, q13}, [r0, :128]
+ vmovl.u8 q8, d24
+ vmovl.u8 q9, d25
+ vld1.8 {q14, q15}, [r12, :128]
+ vmovl.u8 q10, d26
+ vmovl.u8 q11, d27
+ vmovl.u8 q12, d28
+ vldm r1!, {q0-q7}
+ vmovl.u8 q13, d29
+ vmovl.u8 q14, d30
+ vmovl.u8 q15, d31
+ vqadd.s16 q0, q8
+ vqadd.s16 q1, q9
+ vqadd.s16 q2, q10
+ vqadd.s16 q3, q11
+ vqadd.s16 q4, q12
+ vqadd.s16 q5, q13
+ vqadd.s16 q6, q14
+ vqadd.s16 q7, q15
+ vqmovun.s16 d0, q0
+ vqmovun.s16 d1, q1
+ vqmovun.s16 d2, q2
+ vqmovun.s16 d3, q3
+ vqmovun.s16 d4, q4
+ vqmovun.s16 d5, q5
+ vst1.8 {q0, q1}, [r0, :128], r2
+ vqmovun.s16 d6, q6
+ vqmovun.s16 d7, q7
+ vst1.8 {q2, q3}, [r12, :128], r2
+ bne 1b
+ vpop {q4-q7}
+ bx lr
+endfunc
+
+function ff_hevc_add_residual_32x32_10_neon, export=1
+ mov r3, #32
+ add r12, r0, #32
+ vmov.s16 q12, #0
+ vmvn.s16 q13, #0xFC00 @ vmov.s16 #0x3FF
+1: subs r3, #1
+ vldm r1!, {q0-q3}
+ vld1.16 {q8, q9}, [r0, :128]
+ vld1.16 {q10, q11}, [r12, :128]
+ vqadd.s16 q0, q8
+ vqadd.s16 q1, q9
+ vqadd.s16 q2, q10
+ vqadd.s16 q3, q11
+ clip10 q0, q1, q12, q13
+ clip10 q2, q3, q12, q13
+ vst1.16 {q0-q1}, [r0, :128], r2
+ vst1.16 {q2-q3}, [r12, :128], r2
+ bne 1b
+ bx lr
+endfunc
+
+/* uses registers q2 - q9 for temp values */
+/* TODO: reorder */
+.macro tr4_luma_shift r0, r1, r2, r3, shift
+ vaddl.s16 q5, \r0, \r2 // c0 = src0 + src2
+ vaddl.s16 q2, \r2, \r3 // c1 = src2 + src3
+ vsubl.s16 q4, \r0, \r3 // c2 = src0 - src3
+ vmull.s16 q6, \r1, d0[0] // c3 = 74 * src1
+
+ vaddl.s16 q7, \r0, \r3 // src0 + src3
+ vsubw.s16 q7, q7, \r2 // src0 - src2 + src3
+ vmul.s32 q7, q7, d0[0] // dst2 = 74 * (src0 - src2 + src3)
+
+ vmul.s32 q8, q5, d0[1] // 29 * c0
+ vmul.s32 q9, q2, d1[0] // 55 * c1
+ vadd.s32 q8, q9 // 29 * c0 + 55 * c1
+ vadd.s32 q8, q6 // dst0 = 29 * c0 + 55 * c1 + c3
+
+ vmul.s32 q2, q2, d0[1] // 29 * c1
+ vmul.s32 q9, q4, d1[0] // 55 * c2
+ vsub.s32 q9, q2 // 55 * c2 - 29 * c1
+ vadd.s32 q9, q6 // dst1 = 55 * c2 - 29 * c1 + c3
+
+ vmul.s32 q5, q5, d1[0] // 55 * c0
+ vmul.s32 q4, q4, d0[1] // 29 * c2
+ vadd.s32 q5, q4 // 55 * c0 + 29 * c2
+ vsub.s32 q5, q6 // dst3 = 55 * c0 + 29 * c2 - c3
+
+ vqrshrn.s32 \r0, q8, \shift
+ vqrshrn.s32 \r1, q9, \shift
+ vqrshrn.s32 \r2, q7, \shift
+ vqrshrn.s32 \r3, q5, \shift
+.endm
+
+function ff_hevc_transform_luma_4x4_neon_8, export=1
+ vpush {d8-d15}
+ vld1.16 {q14, q15}, [r0] // coeffs
+ ldr r3, =0x4a // 74
+ vmov.32 d0[0], r3
+ ldr r3, =0x1d // 29
+ vmov.32 d0[1], r3
+ ldr r3, =0x37 // 55
+ vmov.32 d1[0], r3
+
+ tr4_luma_shift d28, d29, d30, d31, #7
+
+ vtrn.16 d28, d29
+ vtrn.16 d30, d31
+ vtrn.32 q14, q15
+
+ tr4_luma_shift d28, d29, d30, d31, #12
+
+ vtrn.16 d28, d29
+ vtrn.16 d30, d31
+ vtrn.32 q14, q15
+ vst1.16 {q14, q15}, [r0]
+ vpop {d8-d15}
+ bx lr
+endfunc
+
+.macro idct_4x4_dc bitdepth
+function ff_hevc_idct_4x4_dc_\bitdepth\()_neon, export=1
+ ldrsh r1, [r0]
+ ldr r2, =(1 << (13 - \bitdepth))
+ add r1, #1
+ asr r1, #1
+ add r1, r2
+ asr r1, #(14 - \bitdepth)
+ vdup.16 q0, r1
+ vdup.16 q1, r1
+ vst1.16 {q0, q1}, [r0, :128]
+ bx lr
+endfunc
+.endm
+
+.macro idct_8x8_dc bitdepth
+function ff_hevc_idct_8x8_dc_\bitdepth\()_neon, export=1
+ ldrsh r1, [r0]
+ ldr r2, =(1 << (13 - \bitdepth))
+ add r1, #1
+ asr r1, #1
+ add r1, r2
+ asr r1, #(14 - \bitdepth)
+ vdup.16 q8, r1
+ vdup.16 q9, r1
+ vmov.16 q10, q8
+ vmov.16 q11, q8
+ vmov.16 q12, q8
+ vmov.16 q13, q8
+ vmov.16 q14, q8
+ vmov.16 q15, q8
+ vstm r0, {q8-q15}
+ bx lr
+endfunc
+.endm
+
+.macro idct_16x16_dc bitdepth
+function ff_hevc_idct_16x16_dc_\bitdepth\()_neon, export=1
+ ldrsh r1, [r0]
+ ldr r2, =(1 << (13 - \bitdepth))
+ add r1, #1
+ asr r1, #1
+ add r1, r2
+ asr r1, #(14 - \bitdepth)
+ vdup.16 q8, r1
+ vdup.16 q9, r1
+ vmov.16 q10, q8
+ vmov.16 q11, q8
+ vmov.16 q12, q8
+ vmov.16 q13, q8
+ vmov.16 q14, q8
+ vmov.16 q15, q8
+ vstm r0!, {q8-q15}
+ vstm r0!, {q8-q15}
+ vstm r0!, {q8-q15}
+ vstm r0, {q8-q15}
+ bx lr
+endfunc
+.endm
+
+.macro idct_32x32_dc bitdepth
+function ff_hevc_idct_32x32_dc_\bitdepth\()_neon, export=1
+ ldrsh r1, [r0]
+ ldr r2, =(1 << (13 - \bitdepth))
+ add r1, #1
+ asr r1, #1
+ add r1, r2
+ asr r1, #(14 - \bitdepth)
+ mov r3, #16
+ vdup.16 q8, r1
+ vdup.16 q9, r1
+ vmov.16 q10, q8
+ vmov.16 q11, q8
+ vmov.16 q12, q8
+ vmov.16 q13, q8
+ vmov.16 q14, q8
+ vmov.16 q15, q8
+1: subs r3, #1
+ vstm r0!, {q8-q15}
+ bne 1b
+ bx lr
+endfunc
+.endm
+
+.macro sum_sub out, in, c, op
+ .ifc \op, +
+ vmlal.s16 \out, \in, \c
+ .else
+ vmlsl.s16 \out, \in, \c
+ .endif
+.endm
+
+.macro tr_4x4 in0, in1, in2, in3, out0, out1, out2, out3, shift, tmp0, tmp1, tmp2, tmp3, tmp4
+ vshll.s16 \tmp0, \in0, #6
+ vmull.s16 \tmp2, \in1, d4[1]
+ vmov \tmp1, \tmp0
+ vmull.s16 \tmp3, \in1, d4[3]
+ vmlal.s16 \tmp0, \in2, d4[0] @e0
+ vmlsl.s16 \tmp1, \in2, d4[0] @e1
+ vmlal.s16 \tmp2, \in3, d4[3] @o0
+ vmlsl.s16 \tmp3, \in3, d4[1] @o1
+
+ vadd.s32 \tmp4, \tmp0, \tmp2
+ vsub.s32 \tmp0, \tmp0, \tmp2
+ vadd.s32 \tmp2, \tmp1, \tmp3
+ vsub.s32 \tmp1, \tmp1, \tmp3
+ vqrshrn.s32 \out0, \tmp4, #\shift
+ vqrshrn.s32 \out3, \tmp0, #\shift
+ vqrshrn.s32 \out1, \tmp2, #\shift
+ vqrshrn.s32 \out2, \tmp1, #\shift
+.endm
+
+.macro tr_4x4_8 in0, in1, in2, in3, out0, out1, out2, out3, tmp0, tmp1, tmp2, tmp3
+ vshll.s16 \tmp0, \in0, #6
+ vld1.s16 {\in0}, [r1, :64]!
+ vmov \tmp1, \tmp0
+ vmull.s16 \tmp2, \in1, \in0[1]
+ vmull.s16 \tmp3, \in1, \in0[3]
+ vmlal.s16 \tmp0, \in2, \in0[0] @e0
+ vmlsl.s16 \tmp1, \in2, \in0[0] @e1
+ vmlal.s16 \tmp2, \in3, \in0[3] @o0
+ vmlsl.s16 \tmp3, \in3, \in0[1] @o1
+
+ vld1.s16 {\in0}, [r1, :64]
+
+ vadd.s32 \out0, \tmp0, \tmp2
+ vadd.s32 \out1, \tmp1, \tmp3
+ vsub.s32 \out2, \tmp1, \tmp3
+ vsub.s32 \out3, \tmp0, \tmp2
+
+ sub r1, r1, #8
+.endm
+
+@ Do a 4x4 transpose, using q registers for the subtransposes that don't
+@ need to address the indiviudal d registers.
+@ r0,r1 == rq0, r2,r3 == rq1
+.macro transpose_4x4 rq0, rq1, r0, r1, r2, r3
+ vtrn.32 \rq0, \rq1
+ vtrn.16 \r0, \r1
+ vtrn.16 \r2, \r3
+.endm
+
+.macro idct_4x4 bitdepth
+function ff_hevc_idct_4x4_\bitdepth\()_neon, export=1
+ at r0 - coeffs
+ vld1.s16 {q0-q1}, [r0, :128]
+
+ movrel r1, trans
+ vld1.s16 {d4}, [r1, :64]
+
+ tr_4x4 d0, d1, d2, d3, d16, d17, d18, d19, 7, q10, q11, q12, q13, q0
+ transpose_4x4 q8, q9, d16, d17, d18, d19
+
+ tr_4x4 d16, d17, d18, d19, d0, d1, d2, d3, 20 - \bitdepth, q10, q11, q12, q13, q0
+ transpose_4x4 q0, q1, d0, d1, d2, d3
+ vst1.s16 {d0-d3}, [r0, :128]
+ bx lr
+endfunc
+.endm
+
+.macro transpose8_4x4 r0, r1, r2, r3
+ vtrn.16 \r0, \r1
+ vtrn.16 \r2, \r3
+ vtrn.32 \r0, \r2
+ vtrn.32 \r1, \r3
+.endm
+
+.macro transpose_8x8 r0, r1, r2, r3, r4, r5, r6, r7, l0, l1, l2, l3, l4, l5, l6, l7
+ transpose8_4x4 \r0, \r1, \r2, \r3
+ transpose8_4x4 \r4, \r5, \r6, \r7
+
+ transpose8_4x4 \l0, \l1, \l2, \l3
+ transpose8_4x4 \l4, \l5, \l6, \l7
+.endm
+
+.macro tr_8x4 shift, in0, in1, in2, in3, in4, in5, in6, in7
+ tr_4x4_8 \in0, \in2, \in4, \in6, q8, q9, q10, q11, q12, q13, q14, q15
+
+ vmull.s16 q14, \in1, \in0[2]
+ vmull.s16 q12, \in1, \in0[0]
+ vmull.s16 q13, \in1, \in0[1]
+ sum_sub q14, \in3, \in0[0], -
+ sum_sub q12, \in3, \in0[1], +
+ sum_sub q13, \in3, \in0[3], -
+
+ sum_sub q14, \in5, \in0[3], +
+ sum_sub q12, \in5, \in0[2], +
+ sum_sub q13, \in5, \in0[0], -
+
+ sum_sub q14, \in7, \in0[1], +
+ sum_sub q12, \in7, \in0[3], +
+ sum_sub q13, \in7, \in0[2], -
+
+ vadd.s32 q15, q10, q14
+ vsub.s32 q10, q10, q14
+ vqrshrn.s32 \in2, q15, \shift
+
+ vmull.s16 q15, \in1, \in0[3]
+ sum_sub q15, \in3, \in0[2], -
+ sum_sub q15, \in5, \in0[1], +
+ sum_sub q15, \in7, \in0[0], -
+
+ vqrshrn.s32 \in5, q10, \shift
+
+ vadd.s32 q10, q8, q12
+ vsub.s32 q8, q8, q12
+ vadd.s32 q12, q9, q13
+ vsub.s32 q9, q9, q13
+ vadd.s32 q14, q11, q15
+ vsub.s32 q11, q11, q15
+
+ vqrshrn.s32 \in0, q10, \shift
+ vqrshrn.s32 \in7, q8, \shift
+ vqrshrn.s32 \in1, q12, \shift
+ vqrshrn.s32 \in6, q9, \shift
+ vqrshrn.s32 \in3, q14, \shift
+ vqrshrn.s32 \in4, q11, \shift
+.endm
+
+.macro idct_8x8 bitdepth
+function ff_hevc_idct_8x8_\bitdepth\()_neon, export=1
+ at r0 - coeffs
+ vpush {q4-q7}
+
+ mov r1, r0
+ mov r2, #64
+ add r3, r0, #32
+ vld1.s16 {q0-q1}, [r1,:128], r2
+ vld1.s16 {q2-q3}, [r3,:128], r2
+ vld1.s16 {q4-q5}, [r1,:128], r2
+ vld1.s16 {q6-q7}, [r3,:128], r2
+
+ movrel r1, trans
+
+ tr_8x4 7, d0, d2, d4, d6, d8, d10, d12, d14
+ tr_8x4 7, d1, d3, d5, d7, d9, d11, d13, d15
+
+ @ Transpose each 4x4 block, and swap how d4-d7 and d8-d11 are used.
+ @ Layout before:
+ @ d0 d1
+ @ d2 d3
+ @ d4 d5
+ @ d6 d7
+ @ d8 d9
+ @ d10 d11
+ @ d12 d13
+ @ d14 d15
+ transpose_8x8 d0, d2, d4, d6, d8, d10, d12, d14, d1, d3, d5, d7, d9, d11, d13, d15
+ @ Now the layout is:
+ @ d0 d8
+ @ d2 d10
+ @ d4 d12
+ @ d6 d14
+ @ d1 d9
+ @ d3 d11
+ @ d5 d13
+ @ d7 d15
+
+ tr_8x4 20 - \bitdepth, d0, d2, d4, d6, d1, d3, d5, d7
+ vswp d0, d8
+ tr_8x4 20 - \bitdepth, d0, d10, d12, d14, d9, d11, d13, d15
+ vswp d0, d8
+
+ transpose_8x8 d0, d2, d4, d6, d8, d10, d12, d14, d1, d3, d5, d7, d9, d11, d13, d15
+
+ mov r1, r0
+ mov r2, #64
+ add r3, r0, #32
+ vst1.s16 {q0-q1}, [r1,:128], r2
+ vst1.s16 {q2-q3}, [r3,:128], r2
+ vst1.s16 {q4-q5}, [r1,:128], r2
+ vst1.s16 {q6-q7}, [r3,:128], r2
+
+ vpop {q4-q7}
+ bx lr
+endfunc
+.endm
+
+.macro butterfly e, o, tmp_p, tmp_m
+ vadd.s32 \tmp_p, \e, \o
+ vsub.s32 \tmp_m, \e, \o
+.endm
+
+.macro tr16_8x4 in0, in1, in2, in3, in4, in5, in6, in7
+ tr_4x4_8 \in0, \in2, \in4, \in6, q8, q9, q10, q11, q12, q13, q14, q15
+
+ vmull.s16 q12, \in1, \in0[0]
+ vmull.s16 q13, \in1, \in0[1]
+ vmull.s16 q14, \in1, \in0[2]
+ vmull.s16 q15, \in1, \in0[3]
+ sum_sub q12, \in3, \in0[1], +
+ sum_sub q13, \in3, \in0[3], -
+ sum_sub q14, \in3, \in0[0], -
+ sum_sub q15, \in3, \in0[2], -
+
+ sum_sub q12, \in5, \in0[2], +
+ sum_sub q13, \in5, \in0[0], -
+ sum_sub q14, \in5, \in0[3], +
+ sum_sub q15, \in5, \in0[1], +
+
+ sum_sub q12, \in7, \in0[3], +
+ sum_sub q13, \in7, \in0[2], -
+ sum_sub q14, \in7, \in0[1], +
+ sum_sub q15, \in7, \in0[0], -
+
+ butterfly q8, q12, q0, q7
+ butterfly q9, q13, q1, q6
+ butterfly q10, q14, q2, q5
+ butterfly q11, q15, q3, q4
+ add r4, sp, #512
- vst1.s16 {q0-q1}, [r4, :128]!
- vst1.s16 {q2-q3}, [r4, :128]!
- vst1.s16 {q4-q5}, [r4, :128]!
- vst1.s16 {q6-q7}, [r4, :128]
++ vst1.s32 {q0-q1}, [r4, :128]!
++ vst1.s32 {q2-q3}, [r4, :128]!
++ vst1.s32 {q4-q5}, [r4, :128]!
++ vst1.s32 {q6-q7}, [r4, :128]
+.endm
+
+.macro load16 in0, in1, in2, in3, in4, in5, in6, in7
+ vld1.s16 {\in0}, [r1, :64], r2
+ vld1.s16 {\in1}, [r3, :64], r2
+ vld1.s16 {\in2}, [r1, :64], r2
+ vld1.s16 {\in3}, [r3, :64], r2
+ vld1.s16 {\in4}, [r1, :64], r2
+ vld1.s16 {\in5}, [r3, :64], r2
+ vld1.s16 {\in6}, [r1, :64], r2
+ vld1.s16 {\in7}, [r3, :64], r2
+.endm
+
+.macro add_member in, t0, t1, t2, t3, t4, t5, t6, t7, op0, op1, op2, op3, op4, op5, op6, op7
+ sum_sub q5, \in, \t0, \op0
+ sum_sub q6, \in, \t1, \op1
+ sum_sub q7, \in, \t2, \op2
+ sum_sub q8, \in, \t3, \op3
+ sum_sub q9, \in, \t4, \op4
+ sum_sub q10, \in, \t5, \op5
+ sum_sub q11, \in, \t6, \op6
+ sum_sub q12, \in, \t7, \op7
+.endm
+
+.macro butterfly16 in0, in1, in2, in3, in4, in5, in6, in7
+ vadd.s32 q4, \in0, \in1
+ vsub.s32 \in0, \in0, \in1
+ vadd.s32 \in1, \in2, \in3
+ vsub.s32 \in2, \in2, \in3
+ vadd.s32 \in3, \in4, \in5
+ vsub.s32 \in4, \in4, \in5
+ vadd.s32 \in5, \in6, \in7
+ vsub.s32 \in6, \in6, \in7
+.endm
+
+.macro store16 in0, in1, in2, in3, in4, in5, in6, in7
+ vst1.s16 \in0, [r1, :64], r2
+ vst1.s16 \in1, [r3, :64], r4
+ vst1.s16 \in2, [r1, :64], r2
+ vst1.s16 \in3, [r3, :64], r4
+ vst1.s16 \in4, [r1, :64], r2
+ vst1.s16 \in5, [r3, :64], r4
+ vst1.s16 \in6, [r1, :64], r2
+ vst1.s16 \in7, [r3, :64], r4
+.endm
+
+.macro scale out0, out1, out2, out3, out4, out5, out6, out7, in0, in1, in2, in3, in4, in5, in6, in7, shift
+ vqrshrn.s32 \out0, \in0, \shift
+ vqrshrn.s32 \out1, \in1, \shift
+ vqrshrn.s32 \out2, \in2, \shift
+ vqrshrn.s32 \out3, \in3, \shift
+ vqrshrn.s32 \out4, \in4, \shift
+ vqrshrn.s32 \out5, \in5, \shift
+ vqrshrn.s32 \out6, \in6, \shift
+ vqrshrn.s32 \out7, \in7, \shift
+.endm
+
+.macro tr_16x4 name, shift
+function func_tr_16x4_\name
+ mov r1, r5
+ add r3, r5, #64
+ mov r2, #128
+ load16 d0, d1, d2, d3, d4, d5, d6, d7
+ movrel r1, trans
+
+ tr16_8x4 d0, d1, d2, d3, d4, d5, d6, d7
+
+ add r1, r5, #32
+ add r3, r5, #(64 + 32)
+ mov r2, #128
+ load16 d8, d9, d2, d3, d4, d5, d6, d7
+ movrel r1, trans + 16
+ vld1.s16 {q0}, [r1, :128]
+ vmull.s16 q5, d8, d0[0]
+ vmull.s16 q6, d8, d0[1]
+ vmull.s16 q7, d8, d0[2]
+ vmull.s16 q8, d8, d0[3]
+ vmull.s16 q9, d8, d1[0]
+ vmull.s16 q10, d8, d1[1]
+ vmull.s16 q11, d8, d1[2]
+ vmull.s16 q12, d8, d1[3]
+
+ add_member d9, d0[1], d1[0], d1[3], d1[1], d0[2], d0[0], d0[3], d1[2], +, +, +, -, -, -, -, -
+ add_member d2, d0[2], d1[3], d0[3], d0[1], d1[2], d1[0], d0[0], d1[1], +, +, -, -, -, +, +, +
+ add_member d3, d0[3], d1[1], d0[1], d1[3], d0[0], d1[2], d0[2], d1[0], +, -, -, +, +, +, -, -
+ add_member d4, d1[0], d0[2], d1[2], d0[0], d1[3], d0[1], d1[1], d0[3], +, -, -, +, -, -, +, +
+ add_member d5, d1[1], d0[0], d1[0], d1[2], d0[1], d0[3], d1[3], d0[2], +, -, +, +, -, +, +, -
+ add_member d6, d1[2], d0[3], d0[0], d0[2], d1[1], d1[3], d1[0], d0[1], +, -, +, -, +, +, -, +
+ add_member d7, d1[3], d1[2], d1[1], d1[0], d0[3], d0[2], d0[1], d0[0], +, -, +, -, +, -, +, -
+
+ add r4, sp, #512
- vld1.s16 {q0-q1}, [r4, :128]!
- vld1.s16 {q2-q3}, [r4, :128]!
++ vld1.s32 {q0-q1}, [r4, :128]!
++ vld1.s32 {q2-q3}, [r4, :128]!
+
+ butterfly16 q0, q5, q1, q6, q2, q7, q3, q8
+ scale d26, d27, d28, d29, d30, d31, d16, d17, q4, q0, q5, q1, q6, q2, q7, q3, \shift
+ transpose8_4x4 d26, d28, d30, d16
+ transpose8_4x4 d17, d31, d29, d27
+ mov r1, r6
+ add r3, r6, #(24 +3*32)
+ mov r2, #32
+ mov r4, #-32
+ store16 d26, d27, d28, d29, d30, d31, d16, d17
+
+ add r4, sp, #576
- vld1.s16 {q0-q1}, [r4, :128]!
- vld1.s16 {q2-q3}, [r4, :128]
++ vld1.s32 {q0-q1}, [r4, :128]!
++ vld1.s32 {q2-q3}, [r4, :128]
+ butterfly16 q0, q9, q1, q10, q2, q11, q3, q12
+ scale d26, d27, d28, d29, d30, d31, d8, d9, q4, q0, q9, q1, q10, q2, q11, q3, \shift
+ transpose8_4x4 d26, d28, d30, d8
+ transpose8_4x4 d9, d31, d29, d27
+
+ add r1, r6, #8
+ add r3, r6, #(16 + 3 * 32)
+ mov r2, #32
+ mov r4, #-32
+ store16 d26, d27, d28, d29, d30, d31, d8, d9
+
+ bx lr
+endfunc
+.endm
+
+.macro idct_16x16 bitdepth
+function ff_hevc_idct_16x16_\bitdepth\()_neon, export=1
+ at r0 - coeffs
+ push {r4-r7, lr}
+ vpush {q4-q7}
+
+ @ Align the stack, allocate a temp buffer
+T mov r7, sp
+T and r7, r7, #15
+A and r7, sp, #15
+ add r7, r7, #640
+ sub sp, sp, r7
+
+.irp i, 0, 1, 2, 3
+ add r5, r0, #(8 * \i)
+ add r6, sp, #(8 * \i * 16)
+ bl func_tr_16x4_firstpass
+.endr
+
+.irp i, 0, 1, 2, 3
+ add r5, sp, #(8 * \i)
+ add r6, r0, #(8 * \i * 16)
+ bl func_tr_16x4_secondpass_\bitdepth
+.endr
+
+ add sp, sp, r7
+
+ vpop {q4-q7}
+ pop {r4-r7, pc}
+endfunc
+.endm
+
+tr_16x4 firstpass, 7
+tr_16x4 secondpass_8, 20 - 8
+tr_16x4 secondpass_10, 20 - 10
+.ltorg
+
+idct_4x4 8
+idct_4x4_dc 8
+idct_4x4 10
+idct_4x4_dc 10
+idct_8x8 8
+idct_8x8_dc 8
+idct_8x8 10
+idct_8x8_dc 10
+idct_16x16 8
+idct_16x16_dc 8
+idct_16x16 10
+idct_16x16_dc 10
+idct_32x32_dc 8
+idct_32x32_dc 10
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