VP8 for ARMv8 by using NEON intrinsics 07
Add iwalsh_neon.c - vp8_short_inv_walsh4x4_neon Change-Id: I8beda6ce11ad8ce9e80cc0a38d40161938359162 Signed-off-by: James Yu <james.yu@linaro.org>
This commit is contained in:
James Yu
Johann
Родитель
ac8c069198
Коммит
930557be10
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@ -1,87 +0,0 @@
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;
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; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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;
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; Use of this source code is governed by a BSD-style license
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; that can be found in the LICENSE file in the root of the source
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; tree. An additional intellectual property rights grant can be found
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; in the file PATENTS. All contributing project authors may
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; be found in the AUTHORS file in the root of the source tree.
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;
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EXPORT |vp8_short_inv_walsh4x4_neon|
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ARM
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REQUIRE8
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PRESERVE8
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AREA |.text|, CODE, READONLY ; name this block of code
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;short vp8_short_inv_walsh4x4_neon(short *input, short *mb_dqcoeff)
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|vp8_short_inv_walsh4x4_neon| PROC
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; read in all four lines of values: d0->d3
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vld1.i16 {q0-q1}, [r0@128]
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; first for loop
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vadd.s16 d4, d0, d3 ;a = [0] + [12]
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vadd.s16 d6, d1, d2 ;b = [4] + [8]
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vsub.s16 d5, d0, d3 ;d = [0] - [12]
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vsub.s16 d7, d1, d2 ;c = [4] - [8]
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vadd.s16 q0, q2, q3 ; a+b d+c
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vsub.s16 q1, q2, q3 ; a-b d-c
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vtrn.32 d0, d2 ;d0: 0 1 8 9
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;d2: 2 3 10 11
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vtrn.32 d1, d3 ;d1: 4 5 12 13
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;d3: 6 7 14 15
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vtrn.16 d0, d1 ;d0: 0 4 8 12
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;d1: 1 5 9 13
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vtrn.16 d2, d3 ;d2: 2 6 10 14
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;d3: 3 7 11 15
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; second for loop
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vadd.s16 d4, d0, d3 ;a = [0] + [3]
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vadd.s16 d6, d1, d2 ;b = [1] + [2]
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vsub.s16 d5, d0, d3 ;d = [0] - [3]
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vsub.s16 d7, d1, d2 ;c = [1] - [2]
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vmov.i16 q8, #3
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vadd.s16 q0, q2, q3 ; a+b d+c
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vsub.s16 q1, q2, q3 ; a-b d-c
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vadd.i16 q0, q0, q8 ;e/f += 3
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vadd.i16 q1, q1, q8 ;g/h += 3
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vshr.s16 q0, q0, #3 ;e/f >> 3
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vshr.s16 q1, q1, #3 ;g/h >> 3
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mov r2, #64
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add r3, r1, #32
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vst1.i16 d0[0], [r1],r2
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vst1.i16 d1[0], [r3],r2
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vst1.i16 d2[0], [r1],r2
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vst1.i16 d3[0], [r3],r2
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vst1.i16 d0[1], [r1],r2
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vst1.i16 d1[1], [r3],r2
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vst1.i16 d2[1], [r1],r2
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vst1.i16 d3[1], [r3],r2
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vst1.i16 d0[2], [r1],r2
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vst1.i16 d1[2], [r3],r2
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vst1.i16 d2[2], [r1],r2
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vst1.i16 d3[2], [r3],r2
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vst1.i16 d0[3], [r1],r2
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vst1.i16 d1[3], [r3],r2
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vst1.i16 d2[3], [r1]
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vst1.i16 d3[3], [r3]
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bx lr
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ENDP ; |vp8_short_inv_walsh4x4_neon|
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END
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@ -0,0 +1,102 @@
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/*
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* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <arm_neon.h>
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void vp8_short_inv_walsh4x4_neon(
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int16_t *input,
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int16_t *mb_dqcoeff) {
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int16x8_t q0s16, q1s16, q2s16, q3s16;
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int16x4_t d4s16, d5s16, d6s16, d7s16;
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int16x4x2_t v2tmp0, v2tmp1;
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int32x2x2_t v2tmp2, v2tmp3;
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int16x8_t qAdd3;
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q0s16 = vld1q_s16(input);
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q1s16 = vld1q_s16(input + 8);
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// 1st for loop
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d4s16 = vadd_s16(vget_low_s16(q0s16), vget_high_s16(q1s16));
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d6s16 = vadd_s16(vget_high_s16(q0s16), vget_low_s16(q1s16));
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d5s16 = vsub_s16(vget_low_s16(q0s16), vget_high_s16(q1s16));
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d7s16 = vsub_s16(vget_high_s16(q0s16), vget_low_s16(q1s16));
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q2s16 = vcombine_s16(d4s16, d5s16);
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q3s16 = vcombine_s16(d6s16, d7s16);
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q0s16 = vaddq_s16(q2s16, q3s16);
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q1s16 = vsubq_s16(q2s16, q3s16);
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v2tmp2 = vtrn_s32(vreinterpret_s32_s16(vget_low_s16(q0s16)),
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vreinterpret_s32_s16(vget_low_s16(q1s16)));
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v2tmp3 = vtrn_s32(vreinterpret_s32_s16(vget_high_s16(q0s16)),
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vreinterpret_s32_s16(vget_high_s16(q1s16)));
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v2tmp0 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[0]),
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vreinterpret_s16_s32(v2tmp3.val[0]));
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v2tmp1 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[1]),
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vreinterpret_s16_s32(v2tmp3.val[1]));
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// 2nd for loop
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d4s16 = vadd_s16(v2tmp0.val[0], v2tmp1.val[1]);
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d6s16 = vadd_s16(v2tmp0.val[1], v2tmp1.val[0]);
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d5s16 = vsub_s16(v2tmp0.val[0], v2tmp1.val[1]);
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d7s16 = vsub_s16(v2tmp0.val[1], v2tmp1.val[0]);
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q2s16 = vcombine_s16(d4s16, d5s16);
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q3s16 = vcombine_s16(d6s16, d7s16);
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qAdd3 = vdupq_n_s16(3);
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q0s16 = vaddq_s16(q2s16, q3s16);
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q1s16 = vsubq_s16(q2s16, q3s16);
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q0s16 = vaddq_s16(q0s16, qAdd3);
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q1s16 = vaddq_s16(q1s16, qAdd3);
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q0s16 = vshrq_n_s16(q0s16, 3);
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q1s16 = vshrq_n_s16(q1s16, 3);
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// store
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vst1_lane_s16(mb_dqcoeff, vget_low_s16(q0s16), 0);
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mb_dqcoeff += 16;
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vst1_lane_s16(mb_dqcoeff, vget_high_s16(q0s16), 0);
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mb_dqcoeff += 16;
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vst1_lane_s16(mb_dqcoeff, vget_low_s16(q1s16), 0);
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mb_dqcoeff += 16;
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vst1_lane_s16(mb_dqcoeff, vget_high_s16(q1s16), 0);
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mb_dqcoeff += 16;
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vst1_lane_s16(mb_dqcoeff, vget_low_s16(q0s16), 1);
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mb_dqcoeff += 16;
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vst1_lane_s16(mb_dqcoeff, vget_high_s16(q0s16), 1);
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mb_dqcoeff += 16;
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vst1_lane_s16(mb_dqcoeff, vget_low_s16(q1s16), 1);
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mb_dqcoeff += 16;
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vst1_lane_s16(mb_dqcoeff, vget_high_s16(q1s16), 1);
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mb_dqcoeff += 16;
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vst1_lane_s16(mb_dqcoeff, vget_low_s16(q0s16), 2);
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mb_dqcoeff += 16;
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vst1_lane_s16(mb_dqcoeff, vget_high_s16(q0s16), 2);
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mb_dqcoeff += 16;
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vst1_lane_s16(mb_dqcoeff, vget_low_s16(q1s16), 2);
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mb_dqcoeff += 16;
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vst1_lane_s16(mb_dqcoeff, vget_high_s16(q1s16), 2);
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mb_dqcoeff += 16;
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vst1_lane_s16(mb_dqcoeff, vget_low_s16(q0s16), 3);
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mb_dqcoeff += 16;
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vst1_lane_s16(mb_dqcoeff, vget_high_s16(q0s16), 3);
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mb_dqcoeff += 16;
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vst1_lane_s16(mb_dqcoeff, vget_low_s16(q1s16), 3);
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mb_dqcoeff += 16;
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vst1_lane_s16(mb_dqcoeff, vget_high_s16(q1s16), 3);
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mb_dqcoeff += 16;
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return;
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}
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@ -159,7 +159,6 @@ VP8_COMMON_SRCS-$(HAVE_MEDIA) += common/arm/armv6/vp8_variance_halfpixvar16x16_
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VP8_COMMON_SRCS-$(HAVE_MEDIA) += common/arm/armv6/vp8_variance_halfpixvar16x16_hv_armv6$(ASM)
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# common (neon)
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VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/iwalsh_neon$(ASM)
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VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/loopfilter_neon$(ASM)
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VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/loopfiltersimplehorizontaledge_neon$(ASM)
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VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/loopfiltersimpleverticaledge_neon$(ASM)
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@ -186,6 +185,7 @@ VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/dc_only_idct_add_neon.c
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VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/dequant_idct_neon.c
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VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/dequantizeb_neon.c
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VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/idct_dequant_full_2x_neon.c
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VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/iwalsh_neon.c
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$(eval $(call rtcd_h_template,vp8_rtcd,vp8/common/rtcd_defs.pl))
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