From: hkuang <hkuang@google.com>
Date: Tue, 6 Aug 2013 23:05:14 +0000 (-0700)
Subject: Add neon optimize vp9_short_idct16x16_add.
X-Git-Tag: v1.3.0~610^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=cf6beea661e8b09580d9dbe77401e4b3ad84a51f;p=libvpx
Add neon optimize vp9_short_idct16x16_add.
Change-Id: I27134b9a5cace2bdad53534562c91d829b48838d
---
diff --git a/vp9/common/arm/neon/vp9_idct16x16_neon.c b/vp9/common/arm/neon/vp9_idct16x16_neon.c
new file mode 100644
index 000000000..319d58f6f
--- /dev/null
+++ b/vp9/common/arm/neon/vp9_idct16x16_neon.c
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2013 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "./vp9_rtcd.h"
+#include "vp9/common/vp9_common.h"
+
+extern void vp9_short_idct16x16_add_neon_pass1(int16_t *input,
+ int16_t *output,
+ int output_stride);
+extern void vp9_short_idct16x16_add_neon_pass2(int16_t *src,
+ int16_t *output,
+ int16_t *pass1Output,
+ int16_t skip_adding,
+ uint8_t *dest,
+ int dest_stride);
+extern void save_registers();
+extern void restore_registers();
+
+
+void vp9_short_idct16x16_add_neon(int16_t *input,
+ uint8_t *dest, int dest_stride) {
+ int16_t pass1_output[16*16] = {0};
+ int16_t row_idct_output[16*16] = {0};
+
+ // save d8-d15 register values.
+ save_registers();
+
+ /* Parallel idct on the upper 8 rows */
+ // First pass processes even elements 0, 2, 4, 6, 8, 10, 12, 14 and save the
+ // stage 6 result in pass1_output.
+ vp9_short_idct16x16_add_neon_pass1(input, pass1_output, 8);
+
+ // Second pass processes odd elements 1, 3, 5, 7, 9, 11, 13, 15 and combines
+ // with result in pass1(pass1_output) to calculate final result in stage 7
+ // which will be saved into row_idct_output.
+ vp9_short_idct16x16_add_neon_pass2(input+1,
+ row_idct_output,
+ pass1_output,
+ 0,
+ dest,
+ dest_stride);
+
+ /* Parallel idct on the lower 8 rows */
+ // First pass processes even elements 0, 2, 4, 6, 8, 10, 12, 14 and save the
+ // stage 6 result in pass1_output.
+ vp9_short_idct16x16_add_neon_pass1(input+8*16, pass1_output, 8);
+
+ // Second pass processes odd elements 1, 3, 5, 7, 9, 11, 13, 15 and combines
+ // with result in pass1(pass1_output) to calculate final result in stage 7
+ // which will be saved into row_idct_output.
+ vp9_short_idct16x16_add_neon_pass2(input+8*16+1,
+ row_idct_output+8,
+ pass1_output,
+ 0,
+ dest,
+ dest_stride);
+
+ /* Parallel idct on the left 8 columns */
+ // First pass processes even elements 0, 2, 4, 6, 8, 10, 12, 14 and save the
+ // stage 6 result in pass1_output.
+ vp9_short_idct16x16_add_neon_pass1(row_idct_output, pass1_output, 8);
+
+ // Second pass processes odd elements 1, 3, 5, 7, 9, 11, 13, 15 and combines
+ // with result in pass1(pass1_output) to calculate final result in stage 7.
+ // Then add the result to the destination data.
+ vp9_short_idct16x16_add_neon_pass2(row_idct_output+1,
+ row_idct_output,
+ pass1_output,
+ 1,
+ dest,
+ dest_stride);
+
+ /* Parallel idct on the right 8 columns */
+ // First pass processes even elements 0, 2, 4, 6, 8, 10, 12, 14 and save the
+ // stage 6 result in pass1_output.
+ vp9_short_idct16x16_add_neon_pass1(row_idct_output+8*16, pass1_output, 8);
+
+ // Second pass processes odd elements 1, 3, 5, 7, 9, 11, 13, 15 and combines
+ // with result in pass1(pass1_output) to calculate final result in stage 7.
+ // Then add the result to the destination data.
+ vp9_short_idct16x16_add_neon_pass2(row_idct_output+8*16+1,
+ row_idct_output+8,
+ pass1_output,
+ 1,
+ dest+8,
+ dest_stride);
+
+ // restore d8-d15 register values.
+ restore_registers();
+
+ return;
+}
diff --git a/vp9/common/arm/neon/vp9_short_idct16x16_add_neon.asm b/vp9/common/arm/neon/vp9_short_idct16x16_add_neon.asm
new file mode 100644
index 000000000..8d0eab937
--- /dev/null
+++ b/vp9/common/arm/neon/vp9_short_idct16x16_add_neon.asm
@@ -0,0 +1,809 @@
+;
+; Copyright (c) 2013 The WebM project authors. All Rights Reserved.
+;
+; Use of this source code is governed by a BSD-style license
+; that can be found in the LICENSE file in the root of the source
+; tree. An additional intellectual property rights grant can be found
+; in the file PATENTS. All contributing project authors may
+; be found in the AUTHORS file in the root of the source tree.
+;
+
+ EXPORT |vp9_short_idct16x16_add_neon_pass1|
+ EXPORT |vp9_short_idct16x16_add_neon_pass2|
+ EXPORT |save_registers|
+ EXPORT |restore_registers|
+ ARM
+ REQUIRE8
+ PRESERVE8
+
+ AREA ||.text||, CODE, READONLY, ALIGN=2
+
+ ; Transpose a 8x8 16bit data matrix. Datas are loaded in q8-q15.
+ MACRO
+ TRANSPOSE8X8
+ vswp d17, d24
+ vswp d23, d30
+ vswp d21, d28
+ vswp d19, d26
+ vtrn.32 q8, q10
+ vtrn.32 q9, q11
+ vtrn.32 q12, q14
+ vtrn.32 q13, q15
+ vtrn.16 q8, q9
+ vtrn.16 q10, q11
+ vtrn.16 q12, q13
+ vtrn.16 q14, q15
+ MEND
+
+ AREA Block, CODE, READONLY ; name this block of code
+;void |vp9_short_idct16x16_add_neon_pass1|(int16_t *input,
+; int16_t *output, int output_stride)
+;
+; r0 int16_t input
+; r1 int16_t *output
+; r2 int output_stride)
+
+; idct16 stage1 - stage6 on all the elements loaded in q8-q15. The output
+; will be stored back into q8-q15 registers. This function will touch q0-q7
+; registers and use them as buffer during calculation.
+|vp9_short_idct16x16_add_neon_pass1| PROC
+
+ ; TODO(hkuang): Find a better way to load the elements.
+ ; load elements of 0, 2, 4, 6, 8, 10, 12, 14 into q8 - q15
+ vld2.s16 {q8,q9}, [r0]!
+ vld2.s16 {q9,q10}, [r0]!
+ vld2.s16 {q10,q11}, [r0]!
+ vld2.s16 {q11,q12}, [r0]!
+ vld2.s16 {q12,q13}, [r0]!
+ vld2.s16 {q13,q14}, [r0]!
+ vld2.s16 {q14,q15}, [r0]!
+ vld2.s16 {q1,q2}, [r0]!
+ vmov.s16 q15, q1
+
+ ; generate cospi_28_64 = 3196
+ mov r3, #0xc00
+ add r3, #0x7c
+
+ ; generate cospi_4_64 = 16069
+ mov r12, #0x3e00
+ add r12, #0xc5
+
+ ; transpose the input data
+ TRANSPOSE8X8
+
+ ; stage 3
+ vdup.16 d0, r3 ; duplicate cospi_28_64
+ vdup.16 d1, r12 ; duplicate cospi_4_64
+
+ ; preloading to avoid stall
+ ; generate cospi_12_64 = 13623
+ mov r3, #0x3500
+ add r3, #0x37
+
+ ; generate cospi_20_64 = 9102
+ mov r12, #0x2300
+ add r12, #0x8e
+
+ ; step2[4] * cospi_28_64
+ vmull.s16 q2, d18, d0
+ vmull.s16 q3, d19, d0
+
+ ; step2[4] * cospi_28_64 - step2[7] * cospi_4_64
+ vmlsl.s16 q2, d30, d1
+ vmlsl.s16 q3, d31, d1
+
+ ; dct_const_round_shift(temp1);
+ vqrshrn.s32 d8, q2, #14 ; >> 14
+ vqrshrn.s32 d9, q3, #14 ; >> 14
+
+ ; step2[4] * cospi_4_64
+ vmull.s16 q2, d18, d1
+ vmull.s16 q3, d19, d1
+
+ ; step2[4] * cospi_4_64 + step2[7] * cospi_28_64
+ vmlal.s16 q2, d30, d0
+ vmlal.s16 q3, d31, d0
+
+ ; dct_const_round_shift(temp2);
+ vqrshrn.s32 d14, q2, #14 ; >> 14
+ vqrshrn.s32 d15, q3, #14 ; >> 14
+
+ vdup.16 d0, r3; ; duplicate cospi_12_64
+ vdup.16 d1, r12; ; duplicate cospi_20_64
+
+ ; preloading to avoid stall
+ ; generate cospi_16_64 = 11585
+ mov r3, #0x2d00
+ add r3, #0x41
+
+ ; generate cospi_24_64 = 6270
+ mov r12, #0x1800
+ add r12, #0x7e
+
+ ; step2[5] * cospi_12_64
+ vmull.s16 q2, d26, d0
+ vmull.s16 q3, d27, d0
+
+ ; input[5] * cospi_12_64 - input[3] * cospi_20_64
+ vmlsl.s16 q2, d22, d1
+ vmlsl.s16 q3, d23, d1
+
+ ; dct_const_round_shift(temp1);
+ vqrshrn.s32 d10, q2, #14 ; >> 14
+ vqrshrn.s32 d11, q3, #14 ; >> 14
+
+ ; step2[5] * cospi_20_64
+ vmull.s16 q2, d26, d1
+ vmull.s16 q3, d27, d1
+
+ ; step2[5] * cospi_20_64 + step2[6] * cospi_12_64
+ vmlal.s16 q2, d22, d0
+ vmlal.s16 q3, d23, d0
+
+ ; dct_const_round_shift(input_dc * cospi_16_64)
+ vqrshrn.s32 d12, q2, #14 ; >> 14
+ vqrshrn.s32 d13, q3, #14 ; >> 14
+
+ ; stage 4
+ vdup.16 d30, r3 ; cospi_16_64
+
+ ; step1[0] * cospi_16_64
+ vmull.s16 q2, d16, d30
+ vmull.s16 q11, d17, d30
+
+ ; step1[1] * cospi_16_64
+ vmull.s16 q0, d24, d30
+ vmull.s16 q1, d25, d30
+
+ ; (step1[0] + step1[1]) * cospi_16_64;
+ vadd.s32 q3, q2, q0
+ vadd.s32 q15, q11, q1
+
+ ; step2[0] = dct_const_round_shift(temp1)
+ vqrshrn.s32 d16, q3, #14 ; >> 14
+ vqrshrn.s32 d17, q15, #14 ; >> 14
+
+ ; (step1[0] - step1[1]) * cospi_16_64
+ vsub.s32 q3, q2, q0
+ vsub.s32 q15, q11, q1
+
+ ; dct_const_round_shift(input_dc * cospi_16_64)
+ vqrshrn.s32 d18, q3, #14 ; >> 14
+ vqrshrn.s32 d19, q15, #14 ; >> 14
+
+ ; generate cospi_8_64 = 15137
+ mov r3, #0x3b00
+ add r3, #0x21
+
+ ; step1[2] * cospi_24_64 - step1[3] * cospi_8_64;
+ vdup.16 d30, r12 ; duplicate cospi_24_64
+ vdup.16 d31, r3 ; duplicate cospi_8_64
+
+ ; step1[2] * cospi_8_64
+ vmull.s16 q0, d20, d31
+ vmull.s16 q1, d21, d31
+
+ ; input[1] * cospi_8_64 + input[3] * cospi_24_64
+ vmlal.s16 q0, d28, d30
+ vmlal.s16 q1, d29, d30
+
+ ; dct_const_round_shift(temp2);
+ vqrshrn.s32 d22, q0, #14 ; >> 14
+ vqrshrn.s32 d23, q1, #14 ; >> 14
+
+ ; step1[2] * cospi_24_64
+ vmull.s16 q0, d20, d30
+ vmull.s16 q1, d21, d30
+
+ ; input[1] * cospi_24_64 - input[3] * cospi_8_64
+ vmlsl.s16 q0, d28, d31
+ vmlsl.s16 q1, d29, d31
+
+ ; dct_const_round_shift(input_dc * cospi_16_64)
+ vqrshrn.s32 d20, q0, #14 ; >> 14
+ vqrshrn.s32 d21, q1, #14 ; >> 14
+ vsub.s16 q13, q4, q5 ; step2[5] = step1[4] - step1[5];
+ vadd.s16 q4, q4, q5 ; step2[4] = step1[4] + step1[5];
+ vsub.s16 q14, q7, q6 ; step2[6] = -step1[6] + step1[7];
+ vadd.s16 q15, q6, q7 ; step2[7] = step1[6] + step1[7];
+
+ ; generate cospi_16_64 = 11585
+ mov r3, #0x2d00
+ add r3, #0x41
+
+ ; stage 5
+ vadd.s16 q0, q8, q11 ; step1[0] = step2[0] + step2[3];
+ vadd.s16 q1, q9, q10 ; step1[1] = step2[1] + step2[2];
+ vsub.s16 q2, q9, q10 ; step1[2] = step2[1] - step2[2];
+ vsub.s16 q3, q8, q11 ; step1[3] = step2[0] - step2[3];
+
+ vdup.16 d16, r3; ; duplicate cospi_16_64
+
+ ; step2[6] * cospi_16_64
+ vmull.s16 q9, d28, d16
+ vmull.s16 q10, d29, d16
+
+ ; step2[5] * cospi_16_64
+ vmull.s16 q11, d26, d16
+ vmull.s16 q12, d27, d16
+
+ ; (step2[6] - step2[5]) * cospi_16_64
+ vsub.s32 q6, q9, q11
+ vsub.s32 q7, q10, q12
+
+ ; step1[5] = dct_const_round_shift(temp1);
+ vqrshrn.s32 d10, q6, #14 ; >> 14
+ vqrshrn.s32 d11, q7, #14 ; >> 14
+
+ ; temp2 = (step2[5] + step2[6]) * cospi_16_64;
+ vadd.s32 q9, q9, q11
+ vadd.s32 q10, q10, q12
+
+ ; step1[6] = dct_const_round_shift(temp2);
+ vqrshrn.s32 d12, q9, #14 ; >> 14
+ vqrshrn.s32 d13, q10, #14 ; >> 14
+
+ ; step1[7] = step2[7];
+ vmov.s16 q7, q15
+
+ ; stage 6
+ vadd.s16 q8, q0, q7 ; step2[0] = step1[0] + step1[7];
+ vadd.s16 q9, q1, q6 ; step2[1] = step1[1] + step1[6];
+ vadd.s16 q10, q2, q5 ; step2[2] = step1[2] + step1[5];
+ vadd.s16 q11, q3, q4 ; step2[3] = step1[3] + step1[4];
+ vsub.s16 q12, q3, q4 ; step2[4] = step1[3] - step1[4];
+ vsub.s16 q13, q2, q5 ; step2[5] = step1[2] - step1[5];
+ vsub.s16 q14, q1, q6 ; step2[6] = step1[1] - step1[6];
+ vsub.s16 q15, q0, q7 ; step2[7] = step1[0] - step1[7];
+
+ ; store the data
+ vst1.64 {d16}, [r1], r2
+ vst1.64 {d17}, [r1], r2
+ vst1.64 {d18}, [r1], r2
+ vst1.64 {d19}, [r1], r2
+ vst1.64 {d20}, [r1], r2
+ vst1.64 {d21}, [r1], r2
+ vst1.64 {d22}, [r1], r2
+ vst1.64 {d23}, [r1], r2
+ vst1.64 {d24}, [r1], r2
+ vst1.64 {d25}, [r1], r2
+ vst1.64 {d26}, [r1], r2
+ vst1.64 {d27}, [r1], r2
+ vst1.64 {d28}, [r1], r2
+ vst1.64 {d29}, [r1], r2
+ vst1.64 {d30}, [r1], r2
+ vst1.64 {d31}, [r1], r2
+
+ bx lr
+ ENDP ; |vp9_short_idct16x16_add_neon_pass1|
+
+;void vp9_short_idct16x16_add_neon_pass2(int16_t *src,
+; int16_t *output,
+; int16_t *pass1Output,
+; int16_t skip_adding,
+; uint8_t *dest,
+; int dest_stride)
+;
+; r0 int16_t *src
+; r1 int16_t *output,
+; r2 int16_t *pass1Output,
+; r3 int16_t skip_adding,
+; r4 uint8_t *dest,
+; r5 int dest_stride)
+
+; idct16 stage1 - stage7 on all the elements loaded in q8-q15. The output
+; will be stored back into q8-q15 registers. This function will touch q0-q7
+; registers and use them as buffer during calculation.
+|vp9_short_idct16x16_add_neon_pass2| PROC
+ push {r3-r9}
+
+ ; TODO(hkuang): Find a better way to load the elements.
+ ; load elements of 0, 2, 4, 6, 8, 10, 12, 14 into q8 - q15
+ vld2.s16 {q8,q9}, [r0]!
+ vld2.s16 {q9,q10}, [r0]!
+ vld2.s16 {q10,q11}, [r0]!
+ vld2.s16 {q11,q12}, [r0]!
+ vld2.s16 {q12,q13}, [r0]!
+ vld2.s16 {q13,q14}, [r0]!
+ vld2.s16 {q14,q15}, [r0]!
+ vld2.s16 {q0,q1}, [r0]!
+ vmov.s16 q15, q0;
+
+ ; generate cospi_30_64 = 1606
+ mov r3, #0x0600
+ add r3, #0x46
+
+ ; generate cospi_2_64 = 16305
+ mov r12, #0x3f00
+ add r12, #0xb1
+
+ ; transpose the input data
+ TRANSPOSE8X8
+
+ ; stage 3
+ vdup.16 d12, r3 ; duplicate cospi_30_64
+ vdup.16 d13, r12 ; duplicate cospi_2_64
+
+ ; preloading to avoid stall
+ ; generate cospi_14_64 = 12665
+ mov r3, #0x3100
+ add r3, #0x79
+
+ ; generate cospi_18_64 = 10394
+ mov r12, #0x2800
+ add r12, #0x9a
+
+ ; step1[8] * cospi_30_64 = input[1] * cospi_30_64
+ vmull.s16 q2, d16, d12
+ vmull.s16 q3, d17, d12
+
+ ; step1[8] * cospi_30_64 - step1[15] * cospi_2_64
+ vmlsl.s16 q2, d30, d13
+ vmlsl.s16 q3, d31, d13
+
+ ; dct_const_round_shift(temp1);
+ vqrshrn.s32 d0, q2, #14 ; >> 14
+ vqrshrn.s32 d1, q3, #14 ; >> 14
+
+ ; step1[8] * cospi_2_64
+ vmull.s16 q2, d16, d13
+ vmull.s16 q3, d17, d13
+
+ ; step1[8] * cospi_2_64 + step1[15] * cospi_30_64
+ vmlal.s16 q2, d30, d12
+ vmlal.s16 q3, d31, d12
+
+ ; dct_const_round_shift(temp2);
+ vqrshrn.s32 d14, q2, #14 ; >> 14
+ vqrshrn.s32 d15, q3, #14 ; >> 14
+
+ vdup.16 d30, r3 ; duplicate cospi_14_64
+ vdup.16 d31, r12 ; duplicate cospi_18_64
+
+ ; preloading to avoid stall
+ ; generate cospi_22_64 = 7723
+ mov r3, #0x1e00
+ add r3, #0x2b
+
+ ; generate cospi_10_64 = 14449
+ mov r12, #0x3800
+ add r12, #0x71
+
+ ; step1[9] * cospi_14_64 = input[9] * cospi_12_64
+ vmull.s16 q2, d24, d30
+ vmull.s16 q3, d25, d30
+
+ ; step1[9] * cospi_14_64 - step1[14] * cospi_18_64
+ vmlsl.s16 q2, d22, d31
+ vmlsl.s16 q3, d23, d31
+
+ ; dct_const_round_shift(temp1);
+ vqrshrn.s32 d2, q2, #14 ; >> 14
+ vqrshrn.s32 d3, q3, #14 ; >> 14
+
+ ; step1[9] * cospi_18_64
+ vmull.s16 q2, d24, d31
+ vmull.s16 q3, d25, d31
+
+ ; step1[9] * cospi_18_64 + step1[14] * cospi_14_64
+ vmlal.s16 q2, d22, d30
+ vmlal.s16 q3, d23, d30
+
+ ; dct_const_round_shift(temp1)
+ vqrshrn.s32 d12, q2, #14 ; >> 14
+ vqrshrn.s32 d13, q3, #14 ; >> 14
+
+ vdup.16 d30, r3 ; duplicate cospi_22_64
+ vdup.16 d31, r12 ; duplicate cospi_10_64
+
+ ; step1[10] * cospi_22_64
+ vmull.s16 q11, d20, d30
+ vmull.s16 q12, d21, d30
+
+ ; step1[10] * cospi_22_64 - step1[13] * cospi_10_64
+ vmlsl.s16 q11, d26, d31
+ vmlsl.s16 q12, d27, d31
+
+ ; dct_const_round_shift(temp1);
+ vqrshrn.s32 d4, q11, #14 ; >> 14
+ vqrshrn.s32 d5, q12, #14 ; >> 14
+
+ ; step1[10] * cospi_10_64
+ vmull.s16 q11, d20, d31
+ vmull.s16 q12, d21, d31
+
+ ; step1[10] * cospi_10_64 + step1[13] * cospi_22_64
+ vmlal.s16 q11, d26, d30
+ vmlal.s16 q12, d27, d30
+
+ ; dct_const_round_shift(input_dc * cospi_16_64)
+ vqrshrn.s32 d10, q11, #14 ; >> 14
+ vqrshrn.s32 d11, q12, #14 ; >> 14
+
+ ; preloading to avoid stall
+ ; generate cospi_6_64 = 15679
+ mov r3, #0x3d00
+ add r3, #0x3f
+
+ ; generate cospi_26_64 = 4756
+ mov r12, #0x1200
+ add r12, #0x94
+
+ vdup.16 d30, r3 ; duplicate cospi_6_64
+ vdup.16 d31, r12 ; duplicate cospi_26_64
+
+ ; step1[11] * cospi_6_64 = input[13] * cospi_6_64
+ vmull.s16 q10, d28, d30
+ vmull.s16 q11, d29, d30
+
+ ; step1[11] * cospi_6_64 - step1[12] * cospi_26_64
+ vmlsl.s16 q10, d18, d31
+ vmlsl.s16 q11, d19, d31
+
+ ; dct_const_round_shift(temp1);
+ vqrshrn.s32 d6, q10, #14 ; >> 14
+ vqrshrn.s32 d7, q11, #14 ; >> 14
+
+ ; step1[11] * cospi_26_64
+ vmull.s16 q10, d28, d31
+ vmull.s16 q11, d29, d31
+
+ ; step1[12] * cospi_6_64
+ vmlal.s16 q10, d18, d30
+ vmlal.s16 q11, d19, d30
+
+ ; dct_const_round_shift(input_dc * cospi_16_64)
+ vqrshrn.s32 d8, q10, #14 ; >> 14
+ vqrshrn.s32 d9, q11, #14 ; >> 14
+
+ ; stage 3
+ vsub.s16 q9, q0, q1 ; step1[9]=step2[8]-step2[9]
+ vadd.s16 q0, q0, q1 ; step1[8]=step2[8]+step2[9]
+ vsub.s16 q10, q3, q2 ; step1[10]=-step2[10]+step2[11]
+ vadd.s16 q11, q2, q3 ; step1[11]=step2[10]+step2[11]
+ vadd.s16 q12, q4, q5 ; step1[12]=step2[12]+step2[13]
+ vsub.s16 q13, q4, q5 ; step1[13]=step2[12]-step2[13]
+ vsub.s16 q14, q7, q6 ; step1[14]=-step2[14]+tep2[15]
+ vadd.s16 q7, q6, q7 ; step1[15]=step2[14]+step2[15]
+
+ ; stage 4
+ ; generate cospi_24_64 = 6270
+ mov r3, #0x1800
+ add r3, #0x7e
+
+ ; generate cospi_8_64 = 15137
+ mov r12, #0x3b00
+ add r12, #0x21
+
+ ; -step1[9] * cospi_8_64 + step1[14] * cospi_24_64;
+ vdup.16 d30, r12 ; duplicate cospi_8_64
+ vdup.16 d31, r3 ; duplicate cospi_24_64
+
+ ; step1[14] * cospi_24_64
+ vmull.s16 q4, d28, d31
+ vmull.s16 q5, d29, d31
+
+ ; -step1[9] * cospi_8_64 + step1[14] * cospi_24_64
+ vmlsl.s16 q4, d18, d30
+ vmlsl.s16 q5, d19, d30
+
+ ; dct_const_round_shift(temp1)
+ vqrshrn.s32 d2, q4, #14 ; >> 14
+ vqrshrn.s32 d3, q5, #14 ; >> 14
+
+ ; step1[9] * cospi_24_64
+ vmull.s16 q2, d18, d31
+ vmull.s16 q3, d19, d31
+
+ ; step1[9] * cospi_24_64 + step1[14] * cospi_8_64
+ vmlal.s16 q2, d28, d30
+ vmlal.s16 q3, d29, d30
+
+ ; dct_const_round_shift(temp1)
+ vqrshrn.s32 d12, q2, #14 ; >> 14
+ vqrshrn.s32 d13, q3, #14 ; >> 14
+
+ vmov.s16 q3, q11
+ vmov.s16 q4, q12
+
+ ; -step1[10] * cospi_24_64 - step1[13] * cospi_8_64
+ rsb r12, #0
+ vdup.16 d30, r12 ; duplicate -cospi_8_64
+
+ ; - step1[13] * cospi_8_64
+ vmull.s16 q11, d26, d30
+ vmull.s16 q12, d27, d30
+
+ ; -step1[10] * cospi_8_64 + step1[13] * cospi_24_64
+ vmlsl.s16 q11, d20, d31
+ vmlsl.s16 q12, d21, d31
+
+ ; dct_const_round_shift(temp1)
+ vqrshrn.s32 d4, q11, #14 ; >> 14
+ vqrshrn.s32 d5, q12, #14 ; >> 14
+
+ ; -step1[10] * cospi_8_64
+ vmull.s16 q8, d20, d30
+ vmull.s16 q9, d21, d30
+
+ ; -step1[10] * cospi_8_64 + step1[13] * cospi_24_64
+ vmlal.s16 q8, d26, d31
+ vmlal.s16 q9, d27, d31
+
+ ; dct_const_round_shift(temp2)
+ vqrshrn.s32 d10, q8, #14 ; >> 14
+ vqrshrn.s32 d11, q9, #14 ; >> 14
+
+ ; stage 5
+ vadd.s16 q8, q0, q3 ; step1[8] = step2[8]+step2[11];
+ vadd.s16 q9, q1, q2 ; step1[9] = step2[9]+step2[10];
+ vsub.s16 q10, q1, q2 ; step1[10] = step2[9]-step2[10];
+ vsub.s16 q11, q0, q3 ; step1[11] = step2[8]-step2[11];
+ vsub.s16 q12, q7, q4 ; step1[12] =-step2[12]+step2[15];
+ vsub.s16 q13, q6, q5 ; step1[13] =-step2[13]+step2[14];
+ vadd.s16 q14, q6, q5 ; step1[14] =step2[13]+step2[14];
+ vadd.s16 q15, q7, q4 ; step1[15] =step2[12]+step2[15];
+
+ ; stage 6. The following instruction may not be needed, but they will make
+ ; the data more easy to manage as data will be grouped in q0 - q7.
+ vmov.s16 q0, q8
+ vmov.s16 q1, q9
+ vmov.s16 q6, q14
+ vmov.s16 q7, q15
+
+ ; generate cospi_16_64 = 11585
+ mov r12, #0x2d00
+ add r12, #0x41
+
+ vdup.16 d30, r12 ; duplicate cospi_16_64
+
+ ; step1[13] * cospi_16_64
+ vmull.s16 q3, d26, d30
+ vmull.s16 q4, d27, d30
+
+ ; step1[10] * cospi_16_64
+ vmull.s16 q8, d20, d30
+ vmull.s16 q9, d21, d30
+
+ ; (-step1[10] + step1[13]) * cospi_16_64;
+ vsub.s32 q5, q3, q8
+ vsub.s32 q14, q4, q9
+
+ ; dct_const_round_shift(temp1)
+ vqrshrn.s32 d4, q5, #14 ; >> 14
+ vqrshrn.s32 d5, q14, #14 ; >> 14
+
+ ; (step1[10] + step1[13]) * cospi_16_64
+ vadd.s32 q5, q3, q8
+ vadd.s32 q14, q4, q9
+
+ ; dct_const_round_shift(temp2);
+ vqrshrn.s32 d10, q5, #14 ; >> 14
+ vqrshrn.s32 d11, q14, #14 ; >> 14
+
+ ; (-step1[11] + step1[12]) * cospi_16_64;
+ ; step1[11] * cospi_16_64
+ vmull.s16 q8, d22, d30
+ vmull.s16 q9, d23, d30
+
+ ; step1[12] * cospi_16_64
+ vmull.s16 q13, d24, d30
+ vmull.s16 q14, d25, d30
+
+ ; (-step1[11] + step1[12]) * cospi_16_64
+ vsub.s32 q10, q13, q8
+ vsub.s32 q4, q14, q9
+
+ ; dct_const_round_shift(input_dc * cospi_16_64)
+ vqrshrn.s32 d6, q10, #14 ; >> 14
+ vqrshrn.s32 d7, q4, #14 ; >> 14
+
+ ; (step1[11] + step1[12]) * cospi_16_64
+ vadd.s32 q13, q13, q8
+ vadd.s32 q14, q14, q9
+
+ ; dct_const_round_shift(temp2);
+ vqrshrn.s32 d8, q13, #14 ; >> 14
+ vqrshrn.s32 d9, q14, #14 ; >> 14
+
+ mov r4, #16 ; pass1Output stride
+ ldr r3, [sp] ; load skip_adding
+ cmp r3, #0 ; check if need adding dest data
+ beq skip_adding_dest
+
+ ldr r7, [sp, #28] ; dest used to save element 0-7
+ mov r9, r7 ; save dest pointer for later use
+ ldr r8, [sp, #32] ; load dest_stride
+
+ ; stage 7
+ ; load the data in pass1
+ vld1.s16 {q8}, [r2], r4 ; load data step2[0]
+ vld1.s16 {q9}, [r2], r4 ; load data step2[1]
+ vld1.s16 {q10}, [r2], r4 ; load data step2[2]
+ vld1.s16 {q11}, [r2], r4 ; load data step2[3]
+ vld1.64 {d28}, [r7], r8 ; load destinatoin data
+ vld1.64 {d29}, [r7], r8 ; load destinatoin data
+ vadd.s16 q12, q8, q7 ; step2[0] + step2[15]
+ vadd.s16 q13, q9, q6 ; step2[1] + step2[14]
+ vrshr.s16 q12, q12, #6 ; ROUND_POWER_OF_TWO
+ vrshr.s16 q13, q13, #6 ; ROUND_POWER_OF_TWO
+ vaddw.u8 q12, q12, d28 ; + dest[j * dest_stride + i]
+ vaddw.u8 q13, q13, d29 ; + dest[j * dest_stride + i]
+ vqmovun.s16 d28, q12 ; clip pixel
+ vqmovun.s16 d29, q13 ; clip pixel
+ vst1.64 {d28}, [r9], r8 ; store the data
+ vst1.64 {d29}, [r9], r8 ; store the data
+ vsub.s16 q6, q9, q6 ; step2[1] - step2[14]
+ vsub.s16 q7, q8, q7 ; step2[0] - step2[15]
+ vld1.64 {d28}, [r7], r8 ; load destinatoin data
+ vld1.64 {d29}, [r7], r8 ; load destinatoin data
+ vadd.s16 q12, q10, q5 ; step2[2] + step2[13]
+ vadd.s16 q13, q11, q4 ; step2[3] + step2[12]
+ vrshr.s16 q12, q12, #6 ; ROUND_POWER_OF_TWO
+ vrshr.s16 q13, q13, #6 ; ROUND_POWER_OF_TWO
+ vaddw.u8 q12, q12, d28 ; + dest[j * dest_stride + i]
+ vaddw.u8 q13, q13, d29 ; + dest[j * dest_stride + i]
+ vqmovun.s16 d28, q12 ; clip pixel
+ vqmovun.s16 d29, q13 ; clip pixel
+ vst1.64 {d28}, [r9], r8 ; store the data
+ vst1.64 {d29}, [r9], r8 ; store the data
+ vsub.s16 q4, q11, q4 ; step2[3] - step2[12]
+ vsub.s16 q5, q10, q5 ; step2[2] - step2[13]
+ vld1.s16 {q8}, [r2], r4 ; load data step2[4]
+ vld1.s16 {q9}, [r2], r4 ; load data step2[5]
+ vld1.s16 {q10}, [r2], r4 ; load data step2[6]
+ vld1.s16 {q11}, [r2], r4 ; load data step2[7]
+ vld1.64 {d28}, [r7], r8 ; load destinatoin data
+ vld1.64 {d29}, [r7], r8 ; load destinatoin data
+ vadd.s16 q12, q8, q3 ; step2[4] + step2[11]
+ vadd.s16 q13, q9, q2 ; step2[5] + step2[10]
+ vrshr.s16 q12, q12, #6 ; ROUND_POWER_OF_TWO
+ vrshr.s16 q13, q13, #6 ; ROUND_POWER_OF_TWO
+ vaddw.u8 q12, q12, d28 ; + dest[j * dest_stride + i]
+ vaddw.u8 q13, q13, d29 ; + dest[j * dest_stride + i]
+ vqmovun.s16 d28, q12 ; clip pixel
+ vqmovun.s16 d29, q13 ; clip pixel
+ vst1.64 {d28}, [r9], r8 ; store the data
+ vst1.64 {d29}, [r9], r8 ; store the data
+ vsub.s16 q2, q9, q2 ; step2[5] - step2[10]
+ vsub.s16 q3, q8, q3 ; step2[4] - step2[11]
+ vld1.64 {d28}, [r7], r8 ; load destinatoin data
+ vld1.64 {d29}, [r7], r8 ; load destinatoin data
+ vadd.s16 q12, q10, q1 ; step2[6] + step2[9]
+ vadd.s16 q13, q11, q0 ; step2[7] + step2[8]
+ vrshr.s16 q12, q12, #6 ; ROUND_POWER_OF_TWO
+ vrshr.s16 q13, q13, #6 ; ROUND_POWER_OF_TWO
+ vaddw.u8 q12, q12, d28 ; + dest[j * dest_stride + i]
+ vaddw.u8 q13, q13, d29 ; + dest[j * dest_stride + i]
+ vqmovun.s16 d28, q12 ; clip pixel
+ vqmovun.s16 d29, q13 ; clip pixel
+ vst1.64 {d28}, [r9], r8 ; store the data
+ vst1.64 {d29}, [r9], r8 ; store the data
+ vld1.64 {d28}, [r7], r8 ; load destinatoin data
+ vld1.64 {d29}, [r7], r8 ; load destinatoin data
+ vsub.s16 q0, q11, q0 ; step2[7] - step2[8]
+ vsub.s16 q1, q10, q1 ; step2[6] - step2[9]
+
+ ; store the data output 8,9,10,11,12,13,14,15
+ vrshr.s16 q0, q0, #6 ; ROUND_POWER_OF_TWO
+ vaddw.u8 q0, q0, d28 ; + dest[j * dest_stride + i]
+ vqmovun.s16 d28, q0 ; clip pixel
+ vst1.64 {d28}, [r9], r8 ; store the data
+ vld1.64 {d28}, [r7], r8 ; load destinatoin data
+ vrshr.s16 q1, q1, #6
+ vaddw.u8 q1, q1, d29 ; + dest[j * dest_stride + i]
+ vqmovun.s16 d29, q1 ; clip pixel
+ vst1.64 {d29}, [r9], r8 ; store the data
+ vld1.64 {d29}, [r7], r8 ; load destinatoin data
+ vrshr.s16 q2, q2, #6
+ vaddw.u8 q2, q2, d28 ; + dest[j * dest_stride + i]
+ vqmovun.s16 d28, q2 ; clip pixel
+ vst1.64 {d28}, [r9], r8 ; store the data
+ vld1.64 {d28}, [r7], r8 ; load destinatoin data
+ vrshr.s16 q3, q3, #6
+ vaddw.u8 q3, q3, d29 ; + dest[j * dest_stride + i]
+ vqmovun.s16 d29, q3 ; clip pixel
+ vst1.64 {d29}, [r9], r8 ; store the data
+ vld1.64 {d29}, [r7], r8 ; load destinatoin data
+ vrshr.s16 q4, q4, #6
+ vaddw.u8 q4, q4, d28 ; + dest[j * dest_stride + i]
+ vqmovun.s16 d28, q4 ; clip pixel
+ vst1.64 {d28}, [r9], r8 ; store the data
+ vld1.64 {d28}, [r7], r8 ; load destinatoin data
+ vrshr.s16 q5, q5, #6
+ vaddw.u8 q5, q5, d29 ; + dest[j * dest_stride + i]
+ vqmovun.s16 d29, q5 ; clip pixel
+ vst1.64 {d29}, [r9], r8 ; store the data
+ vld1.64 {d29}, [r7], r8 ; load destinatoin data
+ vrshr.s16 q6, q6, #6
+ vaddw.u8 q6, q6, d28 ; + dest[j * dest_stride + i]
+ vqmovun.s16 d28, q6 ; clip pixel
+ vst1.64 {d28}, [r9], r8 ; store the data
+ vld1.64 {d28}, [r7], r8 ; load destinatoin data
+ vrshr.s16 q7, q7, #6
+ vaddw.u8 q7, q7, d29 ; + dest[j * dest_stride + i]
+ vqmovun.s16 d29, q7 ; clip pixel
+ vst1.64 {d29}, [r9], r8 ; store the data
+ b end_idct16x16_pass2
+
+skip_adding_dest
+ ; stage 7
+ ; load the data in pass1
+ mov r5, #24
+ mov r3, #8
+
+ vld1.s16 {q8}, [r2], r4 ; load data step2[0]
+ vld1.s16 {q9}, [r2], r4 ; load data step2[1]
+ vld1.s16 {q10}, [r2], r4 ; load data step2[2]
+ vld1.s16 {q11}, [r2], r4 ; load data step2[3]
+ vadd.s16 q12, q8, q7 ; step2[0] + step2[15]
+ vadd.s16 q13, q9, q6 ; step2[1] + step2[14]
+ vst1.64 {d24}, [r1], r3 ; store output[0]
+ vst1.64 {d25}, [r1], r5
+ vst1.64 {d26}, [r1], r3 ; store output[1]
+ vst1.64 {d27}, [r1], r5
+ vsub.s16 q6, q9, q6 ; step2[1] - step2[14]
+ vsub.s16 q7, q8, q7 ; step2[0] - step2[15]
+ vadd.s16 q12, q10, q5 ; step2[2] + step2[13]
+ vadd.s16 q13, q11, q4 ; step2[3] + step2[12]
+ vst1.64 {d24}, [r1], r3 ; store output[2]
+ vst1.64 {d25}, [r1], r5
+ vst1.64 {d26}, [r1], r3 ; store output[3]
+ vst1.64 {d27}, [r1], r5
+ vsub.s16 q4, q11, q4 ; step2[3] - step2[12]
+ vsub.s16 q5, q10, q5 ; step2[2] - step2[13]
+ vld1.s16 {q8}, [r2], r4 ; load data step2[4]
+ vld1.s16 {q9}, [r2], r4 ; load data step2[5]
+ vld1.s16 {q10}, [r2], r4 ; load data step2[6]
+ vld1.s16 {q11}, [r2], r4 ; load data step2[7]
+ vadd.s16 q12, q8, q3 ; step2[4] + step2[11]
+ vadd.s16 q13, q9, q2 ; step2[5] + step2[10]
+ vst1.64 {d24}, [r1], r3 ; store output[4]
+ vst1.64 {d25}, [r1], r5
+ vst1.64 {d26}, [r1], r3 ; store output[5]
+ vst1.64 {d27}, [r1], r5
+ vsub.s16 q2, q9, q2 ; step2[5] - step2[10]
+ vsub.s16 q3, q8, q3 ; step2[4] - step2[11]
+ vadd.s16 q12, q10, q1 ; step2[6] + step2[9]
+ vadd.s16 q13, q11, q0 ; step2[7] + step2[8]
+ vst1.64 {d24}, [r1], r3 ; store output[6]
+ vst1.64 {d25}, [r1], r5
+ vst1.64 {d26}, [r1], r3 ; store output[7]
+ vst1.64 {d27}, [r1], r5
+ vsub.s16 q0, q11, q0 ; step2[7] - step2[8]
+ vsub.s16 q1, q10, q1 ; step2[6] - step2[9]
+
+ ; store the data output 8,9,10,11,12,13,14,15
+ vst1.64 {d0}, [r1], r3
+ vst1.64 {d1}, [r1], r5
+ vst1.64 {d2}, [r1], r3
+ vst1.64 {d3}, [r1], r5
+ vst1.64 {d4}, [r1], r3
+ vst1.64 {d5}, [r1], r5
+ vst1.64 {d6}, [r1], r3
+ vst1.64 {d7}, [r1], r5
+ vst1.64 {d8}, [r1], r3
+ vst1.64 {d9}, [r1], r5
+ vst1.64 {d10}, [r1], r3
+ vst1.64 {d11}, [r1], r5
+ vst1.64 {d12}, [r1], r3
+ vst1.64 {d13}, [r1], r5
+ vst1.64 {d14}, [r1], r3
+ vst1.64 {d15}, [r1], r5
+
+end_idct16x16_pass2
+ pop {r3-r9}
+ bx lr
+ ENDP ; |vp9_short_idct16x16_add_neon_pass2|
+;void |save_registers|()
+|save_registers| PROC
+ vpush {d8-d15}
+ bx lr
+ ENDP ; |save_registers|
+
+;void |restore_registers|()
+|restore_registers| PROC
+ vpop {d8-d15}
+ bx lr
+ ENDP ; |restore_registers|
+ END
diff --git a/vp9/common/vp9_rtcd_defs.sh b/vp9/common/vp9_rtcd_defs.sh
index 3400aec5b..6420b01c4 100644
--- a/vp9/common/vp9_rtcd_defs.sh
+++ b/vp9/common/vp9_rtcd_defs.sh
@@ -313,7 +313,7 @@ prototype void vp9_short_idct16x16_1_add "int16_t *input, uint8_t *dest, int des
specialize vp9_short_idct16x16_1_add sse2
prototype void vp9_short_idct16x16_add "int16_t *input, uint8_t *dest, int dest_stride"
-specialize vp9_short_idct16x16_add sse2
+specialize vp9_short_idct16x16_add sse2 neon
prototype void vp9_short_idct10_16x16_add "int16_t *input, uint8_t *dest, int dest_stride"
specialize vp9_short_idct10_16x16_add sse2
diff --git a/vp9/vp9_common.mk b/vp9/vp9_common.mk
index 76021e828..64520b04b 100644
--- a/vp9/vp9_common.mk
+++ b/vp9/vp9_common.mk
@@ -89,11 +89,13 @@ endif
VP9_COMMON_SRCS-$(HAVE_SSE2) += common/x86/vp9_idct_intrin_sse2.c
VP9_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/vp9_convolve_neon.c
+VP9_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/vp9_idct16x16_neon.c
VP9_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/vp9_convolve8_neon$(ASM)
VP9_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/vp9_convolve8_avg_neon$(ASM)
VP9_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/vp9_loopfilter_neon$(ASM)
VP9_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/vp9_dc_only_idct_add_neon$(ASM)
VP9_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/vp9_short_idct8x8_add_neon$(ASM)
+VP9_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/vp9_short_idct16x16_add_neon$(ASM)
VP9_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/vp9_mb_lpf_neon$(ASM)
$(eval $(call rtcd_h_template,vp9_rtcd,vp9/common/vp9_rtcd_defs.sh))