2013-09-12 20:45:15 +02:00
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;
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; Copyright (c) 2013 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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2013-10-11 22:31:32 +02:00
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EXPORT |vp9_iht8x8_64_add_neon|
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2013-09-12 20:45:15 +02:00
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ARM
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REQUIRE8
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PRESERVE8
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AREA ||.text||, CODE, READONLY, ALIGN=2
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; Generate IADST constants in r0 - r12 for the IADST.
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MACRO
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GENERATE_IADST_CONSTANTS
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; generate cospi_2_64 = 16305
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mov r0, #0x3f00
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add r0, #0xb1
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; generate cospi_30_64 = 1606
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mov r1, #0x600
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add r1, #0x46
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; generate cospi_10_64 = 14449
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mov r2, #0x3800
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add r2, #0x71
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; generate cospi_22_64 = 7723
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mov r3, #0x1e00
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add r3, #0x2b
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; generate cospi_18_64 = 10394
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mov r4, #0x2800
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add r4, #0x9a
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; generate cospi_14_64 = 12665
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mov r5, #0x3100
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add r5, #0x79
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; generate cospi_26_64 = 4756
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mov r6, #0x1200
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add r6, #0x94
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; generate cospi_6_64 = 15679
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mov r7, #0x3d00
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add r7, #0x3f
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; generate cospi_8_64 = 15137
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mov r8, #0x3b00
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add r8, #0x21
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; generate cospi_24_64 = 6270
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mov r9, #0x1800
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add r9, #0x7e
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; generate 0
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mov r10, #0
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; generate cospi_16_64 = 11585
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mov r12, #0x2d00
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add r12, #0x41
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MEND
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; Generate IDCT constants in r3 - r9 for the IDCT.
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MACRO
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GENERATE_IDCT_CONSTANTS
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; generate cospi_28_64 = 3196
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mov r3, #0x0c00
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add r3, #0x7c
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; generate cospi_4_64 = 16069
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mov r4, #0x3e00
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add r4, #0xc5
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; generate cospi_12_64 = 13623
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mov r5, #0x3500
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add r5, #0x37
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; generate cospi_20_64 = 9102
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mov r6, #0x2300
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add r6, #0x8e
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; generate cospi_16_64 = 11585
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mov r7, #0x2d00
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add r7, #0x41
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; generate cospi_24_64 = 6270
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mov r8, #0x1800
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add r8, #0x7e
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; generate cospi_8_64 = 15137
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mov r9, #0x3b00
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add r9, #0x21
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MEND
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; Transpose a 8x8 16bits data matrix. Datas are loaded in q8-q15.
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MACRO
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TRANSPOSE8X8
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vswp d17, d24
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vswp d23, d30
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vswp d21, d28
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vswp d19, d26
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vtrn.32 q8, q10
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vtrn.32 q9, q11
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vtrn.32 q12, q14
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vtrn.32 q13, q15
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vtrn.16 q8, q9
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vtrn.16 q10, q11
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vtrn.16 q12, q13
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vtrn.16 q14, q15
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MEND
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; Parallel 1D IDCT on all the columns of a 8x8 16bits data matrix which are
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; loaded in q8-q15. The IDCT constants are loaded in r3 - r9. The output
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; will be stored back into q8-q15 registers. This macro will touch q0-q7
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; registers and use them as buffer during calculation.
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MACRO
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IDCT8x8_1D
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; stage 1
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vdup.16 d0, r3 ; duplicate cospi_28_64
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vdup.16 d1, r4 ; duplicate cospi_4_64
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vdup.16 d2, r5 ; duplicate cospi_12_64
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vdup.16 d3, r6 ; duplicate cospi_20_64
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; input[1] * cospi_28_64
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vmull.s16 q2, d18, d0
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vmull.s16 q3, d19, d0
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; input[5] * cospi_12_64
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vmull.s16 q5, d26, d2
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vmull.s16 q6, d27, d2
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; input[1]*cospi_28_64-input[7]*cospi_4_64
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vmlsl.s16 q2, d30, d1
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vmlsl.s16 q3, d31, d1
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; input[5] * cospi_12_64 - input[3] * cospi_20_64
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vmlsl.s16 q5, d22, d3
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vmlsl.s16 q6, d23, d3
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; dct_const_round_shift(input_dc * cospi_16_64)
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vqrshrn.s32 d8, q2, #14 ; >> 14
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vqrshrn.s32 d9, q3, #14 ; >> 14
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; dct_const_round_shift(input_dc * cospi_16_64)
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vqrshrn.s32 d10, q5, #14 ; >> 14
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vqrshrn.s32 d11, q6, #14 ; >> 14
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; input[1] * cospi_4_64
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vmull.s16 q2, d18, d1
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vmull.s16 q3, d19, d1
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; input[5] * cospi_20_64
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vmull.s16 q9, d26, d3
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vmull.s16 q13, d27, d3
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; input[1]*cospi_4_64+input[7]*cospi_28_64
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vmlal.s16 q2, d30, d0
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vmlal.s16 q3, d31, d0
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; input[5] * cospi_20_64 + input[3] * cospi_12_64
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vmlal.s16 q9, d22, d2
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vmlal.s16 q13, d23, d2
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; dct_const_round_shift(input_dc * cospi_16_64)
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vqrshrn.s32 d14, q2, #14 ; >> 14
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vqrshrn.s32 d15, q3, #14 ; >> 14
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; stage 2 & stage 3 - even half
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vdup.16 d0, r7 ; duplicate cospi_16_64
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; dct_const_round_shift(input_dc * cospi_16_64)
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vqrshrn.s32 d12, q9, #14 ; >> 14
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vqrshrn.s32 d13, q13, #14 ; >> 14
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; input[0] * cospi_16_64
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vmull.s16 q2, d16, d0
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vmull.s16 q3, d17, d0
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; input[0] * cospi_16_64
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vmull.s16 q13, d16, d0
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vmull.s16 q15, d17, d0
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; (input[0] + input[2]) * cospi_16_64
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vmlal.s16 q2, d24, d0
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vmlal.s16 q3, d25, d0
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; (input[0] - input[2]) * cospi_16_64
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vmlsl.s16 q13, d24, d0
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vmlsl.s16 q15, d25, d0
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vdup.16 d0, r8 ; duplicate cospi_24_64
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vdup.16 d1, r9 ; duplicate cospi_8_64
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; dct_const_round_shift(input_dc * cospi_16_64)
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vqrshrn.s32 d18, q2, #14 ; >> 14
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vqrshrn.s32 d19, q3, #14 ; >> 14
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; dct_const_round_shift(input_dc * cospi_16_64)
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vqrshrn.s32 d22, q13, #14 ; >> 14
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vqrshrn.s32 d23, q15, #14 ; >> 14
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; input[1] * cospi_24_64
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vmull.s16 q2, d20, d0
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vmull.s16 q3, d21, d0
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; input[1] * cospi_8_64
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vmull.s16 q8, d20, d1
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vmull.s16 q12, d21, d1
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; input[1] * cospi_24_64 - input[3] * cospi_8_64
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vmlsl.s16 q2, d28, d1
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vmlsl.s16 q3, d29, d1
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; input[1] * cospi_8_64 + input[3] * cospi_24_64
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vmlal.s16 q8, d28, d0
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vmlal.s16 q12, d29, d0
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; dct_const_round_shift(input_dc * cospi_16_64)
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vqrshrn.s32 d26, q2, #14 ; >> 14
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vqrshrn.s32 d27, q3, #14 ; >> 14
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; dct_const_round_shift(input_dc * cospi_16_64)
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vqrshrn.s32 d30, q8, #14 ; >> 14
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vqrshrn.s32 d31, q12, #14 ; >> 14
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vadd.s16 q0, q9, q15 ; output[0] = step[0] + step[3]
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vadd.s16 q1, q11, q13 ; output[1] = step[1] + step[2]
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vsub.s16 q2, q11, q13 ; output[2] = step[1] - step[2]
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vsub.s16 q3, q9, q15 ; output[3] = step[0] - step[3]
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; stage 3 -odd half
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vdup.16 d16, r7 ; duplicate cospi_16_64
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; stage 2 - odd half
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vsub.s16 q13, q4, q5 ; step2[5] = step1[4] - step1[5]
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vadd.s16 q4, q4, q5 ; step2[4] = step1[4] + step1[5]
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vsub.s16 q14, q7, q6 ; step2[6] = -step1[6] + step1[7]
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vadd.s16 q7, q7, q6 ; step2[7] = step1[6] + step1[7]
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; step2[6] * cospi_16_64
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vmull.s16 q9, d28, d16
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vmull.s16 q10, d29, d16
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; step2[6] * cospi_16_64
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vmull.s16 q11, d28, d16
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vmull.s16 q12, d29, d16
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; (step2[6] - step2[5]) * cospi_16_64
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vmlsl.s16 q9, d26, d16
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vmlsl.s16 q10, d27, d16
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; (step2[5] + step2[6]) * cospi_16_64
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vmlal.s16 q11, d26, d16
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vmlal.s16 q12, d27, d16
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; dct_const_round_shift(input_dc * cospi_16_64)
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vqrshrn.s32 d10, q9, #14 ; >> 14
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vqrshrn.s32 d11, q10, #14 ; >> 14
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; dct_const_round_shift(input_dc * cospi_16_64)
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vqrshrn.s32 d12, q11, #14 ; >> 14
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vqrshrn.s32 d13, q12, #14 ; >> 14
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; stage 4
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vadd.s16 q8, q0, q7 ; output[0] = step1[0] + step1[7];
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vadd.s16 q9, q1, q6 ; output[1] = step1[1] + step1[6];
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vadd.s16 q10, q2, q5 ; output[2] = step1[2] + step1[5];
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vadd.s16 q11, q3, q4 ; output[3] = step1[3] + step1[4];
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vsub.s16 q12, q3, q4 ; output[4] = step1[3] - step1[4];
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vsub.s16 q13, q2, q5 ; output[5] = step1[2] - step1[5];
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vsub.s16 q14, q1, q6 ; output[6] = step1[1] - step1[6];
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vsub.s16 q15, q0, q7 ; output[7] = step1[0] - step1[7];
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MEND
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; Parallel 1D IADST on all the columns of a 8x8 16bits data matrix which
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; loaded in q8-q15. IADST constants are loaded in r0 - r12 registers. The
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; output will be stored back into q8-q15 registers. This macro will touch
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; q0 - q7 registers and use them as buffer during calculation.
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MACRO
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IADST8X8_1D
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vdup.16 d14, r0 ; duplicate cospi_2_64
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vdup.16 d15, r1 ; duplicate cospi_30_64
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; cospi_2_64 * x0
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vmull.s16 q1, d30, d14
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vmull.s16 q2, d31, d14
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; cospi_30_64 * x0
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vmull.s16 q3, d30, d15
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vmull.s16 q4, d31, d15
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|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
vdup.16 d30, r4 ; duplicate cospi_18_64
|
|
|
|
|
vdup.16 d31, r5 ; duplicate cospi_14_64
|
|
|
|
|
|
|
|
|
|
; s0 = cospi_2_64 * x0 + cospi_30_64 * x1;
|
|
|
|
|
vmlal.s16 q1, d16, d15
|
|
|
|
|
vmlal.s16 q2, d17, d15
|
|
|
|
|
|
2013-09-12 20:45:15 +02:00
|
|
|
; s1 = cospi_30_64 * x0 - cospi_2_64 * x1
|
|
|
|
|
vmlsl.s16 q3, d16, d14
|
|
|
|
|
vmlsl.s16 q4, d17, d14
|
|
|
|
|
|
|
|
|
|
; cospi_18_64 * x4
|
|
|
|
|
vmull.s16 q5, d22, d30
|
|
|
|
|
vmull.s16 q6, d23, d30
|
|
|
|
|
|
|
|
|
|
; cospi_14_64 * x4
|
|
|
|
|
vmull.s16 q7, d22, d31
|
|
|
|
|
vmull.s16 q8, d23, d31
|
|
|
|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
; s4 = cospi_18_64 * x4 + cospi_14_64 * x5;
|
|
|
|
|
vmlal.s16 q5, d24, d31
|
|
|
|
|
vmlal.s16 q6, d25, d31
|
|
|
|
|
|
2013-09-12 20:45:15 +02:00
|
|
|
; s5 = cospi_14_64 * x4 - cospi_18_64 * x5
|
|
|
|
|
vmlsl.s16 q7, d24, d30
|
|
|
|
|
vmlsl.s16 q8, d25, d30
|
|
|
|
|
|
|
|
|
|
; (s0 + s4)
|
|
|
|
|
vadd.s32 q11, q1, q5
|
|
|
|
|
vadd.s32 q12, q2, q6
|
|
|
|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
vdup.16 d0, r2 ; duplicate cospi_10_64
|
|
|
|
|
vdup.16 d1, r3 ; duplicate cospi_22_64
|
2013-09-12 20:45:15 +02:00
|
|
|
|
|
|
|
|
; (s0 - s4)
|
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|
vsub.s32 q1, q1, q5
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|
vsub.s32 q2, q2, q6
|
|
|
|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
; x0 = dct_const_round_shift(s0 + s4);
|
|
|
|
|
vqrshrn.s32 d22, q11, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d23, q12, #14 ; >> 14
|
2013-09-12 20:45:15 +02:00
|
|
|
|
|
|
|
|
; (s1 + s5)
|
|
|
|
|
vadd.s32 q12, q3, q7
|
|
|
|
|
vadd.s32 q15, q4, q8
|
|
|
|
|
|
|
|
|
|
; (s1 - s5)
|
|
|
|
|
vsub.s32 q3, q3, q7
|
|
|
|
|
vsub.s32 q4, q4, q8
|
|
|
|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
; x4 = dct_const_round_shift(s0 - s4);
|
|
|
|
|
vqrshrn.s32 d2, q1, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d3, q2, #14 ; >> 14
|
|
|
|
|
|
|
|
|
|
; x1 = dct_const_round_shift(s1 + s5);
|
|
|
|
|
vqrshrn.s32 d24, q12, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d25, q15, #14 ; >> 14
|
|
|
|
|
|
2013-09-12 20:45:15 +02:00
|
|
|
; x5 = dct_const_round_shift(s1 - s5);
|
|
|
|
|
vqrshrn.s32 d6, q3, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d7, q4, #14 ; >> 14
|
|
|
|
|
|
|
|
|
|
; cospi_10_64 * x2
|
2013-09-16 19:55:54 +02:00
|
|
|
vmull.s16 q4, d26, d0
|
|
|
|
|
vmull.s16 q5, d27, d0
|
2013-09-12 20:45:15 +02:00
|
|
|
|
|
|
|
|
; cospi_22_64 * x2
|
2013-09-16 19:55:54 +02:00
|
|
|
vmull.s16 q2, d26, d1
|
|
|
|
|
vmull.s16 q6, d27, d1
|
2013-09-12 20:45:15 +02:00
|
|
|
|
|
|
|
|
vdup.16 d30, r6 ; duplicate cospi_26_64
|
|
|
|
|
vdup.16 d31, r7 ; duplicate cospi_6_64
|
|
|
|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
; s2 = cospi_10_64 * x2 + cospi_22_64 * x3;
|
|
|
|
|
vmlal.s16 q4, d20, d1
|
|
|
|
|
vmlal.s16 q5, d21, d1
|
|
|
|
|
|
|
|
|
|
; s3 = cospi_22_64 * x2 - cospi_10_64 * x3;
|
|
|
|
|
vmlsl.s16 q2, d20, d0
|
|
|
|
|
vmlsl.s16 q6, d21, d0
|
|
|
|
|
|
2013-09-12 20:45:15 +02:00
|
|
|
; cospi_26_64 * x6
|
|
|
|
|
vmull.s16 q0, d18, d30
|
|
|
|
|
vmull.s16 q13, d19, d30
|
|
|
|
|
|
|
|
|
|
; s6 = cospi_26_64 * x6 + cospi_6_64 * x7;
|
|
|
|
|
vmlal.s16 q0, d28, d31
|
|
|
|
|
vmlal.s16 q13, d29, d31
|
|
|
|
|
|
|
|
|
|
; cospi_6_64 * x6
|
|
|
|
|
vmull.s16 q10, d18, d31
|
|
|
|
|
vmull.s16 q9, d19, d31
|
|
|
|
|
|
|
|
|
|
; s7 = cospi_6_64 * x6 - cospi_26_64 * x7;
|
|
|
|
|
vmlsl.s16 q10, d28, d30
|
|
|
|
|
vmlsl.s16 q9, d29, d30
|
|
|
|
|
|
|
|
|
|
; (s3 + s7)
|
|
|
|
|
vadd.s32 q14, q2, q10
|
|
|
|
|
vadd.s32 q15, q6, q9
|
|
|
|
|
|
|
|
|
|
; (s3 - s7)
|
|
|
|
|
vsub.s32 q2, q2, q10
|
|
|
|
|
vsub.s32 q6, q6, q9
|
|
|
|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
; x3 = dct_const_round_shift(s3 + s7);
|
|
|
|
|
vqrshrn.s32 d28, q14, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d29, q15, #14 ; >> 14
|
|
|
|
|
|
2013-09-12 20:45:15 +02:00
|
|
|
; x7 = dct_const_round_shift(s3 - s7);
|
|
|
|
|
vqrshrn.s32 d4, q2, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d5, q6, #14 ; >> 14
|
|
|
|
|
|
|
|
|
|
; (s2 + s6)
|
|
|
|
|
vadd.s32 q9, q4, q0
|
|
|
|
|
vadd.s32 q10, q5, q13
|
|
|
|
|
|
|
|
|
|
; (s2 - s6)
|
|
|
|
|
vsub.s32 q4, q4, q0
|
|
|
|
|
vsub.s32 q5, q5, q13
|
|
|
|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
vdup.16 d30, r8 ; duplicate cospi_8_64
|
|
|
|
|
vdup.16 d31, r9 ; duplicate cospi_24_64
|
|
|
|
|
|
|
|
|
|
; x2 = dct_const_round_shift(s2 + s6);
|
|
|
|
|
vqrshrn.s32 d18, q9, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d19, q10, #14 ; >> 14
|
|
|
|
|
|
2013-09-12 20:45:15 +02:00
|
|
|
; x6 = dct_const_round_shift(s2 - s6);
|
|
|
|
|
vqrshrn.s32 d8, q4, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d9, q5, #14 ; >> 14
|
|
|
|
|
|
|
|
|
|
; cospi_8_64 * x4
|
|
|
|
|
vmull.s16 q5, d2, d30
|
|
|
|
|
vmull.s16 q6, d3, d30
|
|
|
|
|
|
|
|
|
|
; cospi_24_64 * x4
|
|
|
|
|
vmull.s16 q7, d2, d31
|
|
|
|
|
vmull.s16 q0, d3, d31
|
|
|
|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
; s4 = cospi_8_64 * x4 + cospi_24_64 * x5;
|
|
|
|
|
vmlal.s16 q5, d6, d31
|
|
|
|
|
vmlal.s16 q6, d7, d31
|
|
|
|
|
|
2013-09-12 20:45:15 +02:00
|
|
|
; s5 = cospi_24_64 * x4 - cospi_8_64 * x5;
|
|
|
|
|
vmlsl.s16 q7, d6, d30
|
|
|
|
|
vmlsl.s16 q0, d7, d30
|
|
|
|
|
|
|
|
|
|
; cospi_8_64 * x7
|
|
|
|
|
vmull.s16 q1, d4, d30
|
|
|
|
|
vmull.s16 q3, d5, d30
|
|
|
|
|
|
|
|
|
|
; cospi_24_64 * x7
|
|
|
|
|
vmull.s16 q10, d4, d31
|
|
|
|
|
vmull.s16 q2, d5, d31
|
|
|
|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
; s6 = -cospi_24_64 * x6 + cospi_8_64 * x7;
|
|
|
|
|
vmlsl.s16 q1, d8, d31
|
|
|
|
|
vmlsl.s16 q3, d9, d31
|
|
|
|
|
|
2013-09-12 20:45:15 +02:00
|
|
|
; s7 = cospi_8_64 * x6 + cospi_24_64 * x7;
|
|
|
|
|
vmlal.s16 q10, d8, d30
|
|
|
|
|
vmlal.s16 q2, d9, d30
|
|
|
|
|
|
|
|
|
|
vadd.s16 q8, q11, q9 ; x0 = s0 + s2;
|
|
|
|
|
|
|
|
|
|
vsub.s16 q11, q11, q9 ; x2 = s0 - s2;
|
|
|
|
|
|
|
|
|
|
vadd.s16 q4, q12, q14 ; x1 = s1 + s3;
|
|
|
|
|
|
|
|
|
|
vsub.s16 q12, q12, q14 ; x3 = s1 - s3;
|
|
|
|
|
|
|
|
|
|
; (s4 + s6)
|
|
|
|
|
vadd.s32 q14, q5, q1
|
|
|
|
|
vadd.s32 q15, q6, q3
|
|
|
|
|
|
|
|
|
|
; (s4 - s6)
|
|
|
|
|
vsub.s32 q5, q5, q1
|
|
|
|
|
vsub.s32 q6, q6, q3
|
|
|
|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
; x4 = dct_const_round_shift(s4 + s6);
|
|
|
|
|
vqrshrn.s32 d18, q14, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d19, q15, #14 ; >> 14
|
|
|
|
|
|
2013-09-12 20:45:15 +02:00
|
|
|
; x6 = dct_const_round_shift(s4 - s6);
|
|
|
|
|
vqrshrn.s32 d10, q5, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d11, q6, #14 ; >> 14
|
|
|
|
|
|
|
|
|
|
; (s5 + s7)
|
|
|
|
|
vadd.s32 q1, q7, q10
|
|
|
|
|
vadd.s32 q3, q0, q2
|
|
|
|
|
|
|
|
|
|
; (s5 - s7))
|
|
|
|
|
vsub.s32 q7, q7, q10
|
|
|
|
|
vsub.s32 q0, q0, q2
|
|
|
|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
; x5 = dct_const_round_shift(s5 + s7);
|
|
|
|
|
vqrshrn.s32 d28, q1, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d29, q3, #14 ; >> 14
|
|
|
|
|
|
2013-09-12 20:45:15 +02:00
|
|
|
; x7 = dct_const_round_shift(s5 - s7);
|
|
|
|
|
vqrshrn.s32 d14, q7, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d15, q0, #14 ; >> 14
|
|
|
|
|
|
|
|
|
|
vdup.16 d30, r12 ; duplicate cospi_16_64
|
|
|
|
|
|
|
|
|
|
; cospi_16_64 * x2
|
|
|
|
|
vmull.s16 q2, d22, d30
|
|
|
|
|
vmull.s16 q3, d23, d30
|
|
|
|
|
|
|
|
|
|
; cospi_6_64 * x6
|
|
|
|
|
vmull.s16 q13, d22, d30
|
|
|
|
|
vmull.s16 q1, d23, d30
|
|
|
|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
; cospi_16_64 * x2 + cospi_16_64 * x3;
|
|
|
|
|
vmlal.s16 q2, d24, d30
|
|
|
|
|
vmlal.s16 q3, d25, d30
|
|
|
|
|
|
2013-09-12 20:45:15 +02:00
|
|
|
; cospi_16_64 * x2 - cospi_16_64 * x3;
|
|
|
|
|
vmlsl.s16 q13, d24, d30
|
|
|
|
|
vmlsl.s16 q1, d25, d30
|
|
|
|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
; x2 = dct_const_round_shift(s2);
|
|
|
|
|
vqrshrn.s32 d4, q2, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d5, q3, #14 ; >> 14
|
|
|
|
|
|
2013-09-12 20:45:15 +02:00
|
|
|
;x3 = dct_const_round_shift(s3);
|
|
|
|
|
vqrshrn.s32 d24, q13, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d25, q1, #14 ; >> 14
|
|
|
|
|
|
|
|
|
|
; cospi_16_64 * x6
|
|
|
|
|
vmull.s16 q13, d10, d30
|
|
|
|
|
vmull.s16 q1, d11, d30
|
|
|
|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
; cospi_6_64 * x6
|
|
|
|
|
vmull.s16 q11, d10, d30
|
|
|
|
|
vmull.s16 q0, d11, d30
|
|
|
|
|
|
2013-09-12 20:45:15 +02:00
|
|
|
; cospi_16_64 * x6 + cospi_16_64 * x7;
|
|
|
|
|
vmlal.s16 q13, d14, d30
|
|
|
|
|
vmlal.s16 q1, d15, d30
|
|
|
|
|
|
2013-09-16 19:55:54 +02:00
|
|
|
; cospi_16_64 * x6 - cospi_16_64 * x7;
|
|
|
|
|
vmlsl.s16 q11, d14, d30
|
|
|
|
|
vmlsl.s16 q0, d15, d30
|
|
|
|
|
|
2013-09-12 20:45:15 +02:00
|
|
|
; x6 = dct_const_round_shift(s6);
|
|
|
|
|
vqrshrn.s32 d20, q13, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d21, q1, #14 ; >> 14
|
|
|
|
|
|
|
|
|
|
;x7 = dct_const_round_shift(s7);
|
2013-09-16 19:55:54 +02:00
|
|
|
vqrshrn.s32 d12, q11, #14 ; >> 14
|
|
|
|
|
vqrshrn.s32 d13, q0, #14 ; >> 14
|
2013-09-12 20:45:15 +02:00
|
|
|
|
|
|
|
|
vdup.16 q5, r10 ; duplicate 0
|
|
|
|
|
|
|
|
|
|
vsub.s16 q9, q5, q9 ; output[1] = -x4;
|
|
|
|
|
vsub.s16 q11, q5, q2 ; output[3] = -x2;
|
2013-09-16 19:55:54 +02:00
|
|
|
vsub.s16 q13, q5, q6 ; output[5] = -x7;
|
2013-09-12 20:45:15 +02:00
|
|
|
vsub.s16 q15, q5, q4 ; output[7] = -x1;
|
|
|
|
|
MEND
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
AREA Block, CODE, READONLY ; name this block of code
|
2013-10-11 22:31:32 +02:00
|
|
|
;void vp9_iht8x8_64_add_neon(int16_t *input, uint8_t *dest,
|
2013-09-12 20:45:15 +02:00
|
|
|
; int dest_stride, int tx_type)
|
|
|
|
|
;
|
|
|
|
|
; r0 int16_t input
|
|
|
|
|
; r1 uint8_t *dest
|
|
|
|
|
; r2 int dest_stride
|
|
|
|
|
; r3 int tx_type)
|
|
|
|
|
; This function will only handle tx_type of 1,2,3.
|
2013-10-11 22:31:32 +02:00
|
|
|
|vp9_iht8x8_64_add_neon| PROC
|
2013-09-12 20:45:15 +02:00
|
|
|
|
|
|
|
|
; load the inputs into d16-d19
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vld1.s16 {q8,q9}, [r0]!
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vld1.s16 {q10,q11}, [r0]!
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vld1.s16 {q12,q13}, [r0]!
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vld1.s16 {q14,q15}, [r0]!
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push {r0-r10}
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; transpose the input data
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TRANSPOSE8X8
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; decide the type of transform
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cmp r3, #2
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beq idct_iadst
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cmp r3, #3
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beq iadst_iadst
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iadst_idct
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; generate IDCT constants
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GENERATE_IDCT_CONSTANTS
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|
|
; first transform rows
|
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|
IDCT8x8_1D
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|
|
; transpose the matrix
|
|
|
|
|
TRANSPOSE8X8
|
|
|
|
|
|
|
|
|
|
; generate IADST constants
|
|
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|
|
GENERATE_IADST_CONSTANTS
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|
|
|
|
|
|
|
|
; then transform columns
|
|
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|
|
IADST8X8_1D
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|
2013-10-11 22:31:32 +02:00
|
|
|
b end_vp9_iht8x8_64_add_neon
|
2013-09-12 20:45:15 +02:00
|
|
|
|
|
|
|
|
idct_iadst
|
|
|
|
|
; generate IADST constants
|
|
|
|
|
GENERATE_IADST_CONSTANTS
|
|
|
|
|
|
|
|
|
|
; first transform rows
|
|
|
|
|
IADST8X8_1D
|
|
|
|
|
|
|
|
|
|
; transpose the matrix
|
|
|
|
|
TRANSPOSE8X8
|
|
|
|
|
|
|
|
|
|
; generate IDCT constants
|
|
|
|
|
GENERATE_IDCT_CONSTANTS
|
|
|
|
|
|
|
|
|
|
; then transform columns
|
|
|
|
|
IDCT8x8_1D
|
|
|
|
|
|
2013-10-11 22:31:32 +02:00
|
|
|
b end_vp9_iht8x8_64_add_neon
|
2013-09-12 20:45:15 +02:00
|
|
|
|
|
|
|
|
iadst_iadst
|
|
|
|
|
; generate IADST constants
|
|
|
|
|
GENERATE_IADST_CONSTANTS
|
|
|
|
|
|
|
|
|
|
; first transform rows
|
|
|
|
|
IADST8X8_1D
|
|
|
|
|
|
|
|
|
|
; transpose the matrix
|
|
|
|
|
TRANSPOSE8X8
|
|
|
|
|
|
|
|
|
|
; then transform columns
|
|
|
|
|
IADST8X8_1D
|
|
|
|
|
|
2013-10-11 22:31:32 +02:00
|
|
|
end_vp9_iht8x8_64_add_neon
|
2013-09-12 20:45:15 +02:00
|
|
|
pop {r0-r10}
|
|
|
|
|
|
|
|
|
|
; ROUND_POWER_OF_TWO(temp_out[j], 5)
|
|
|
|
|
vrshr.s16 q8, q8, #5
|
|
|
|
|
vrshr.s16 q9, q9, #5
|
|
|
|
|
vrshr.s16 q10, q10, #5
|
|
|
|
|
vrshr.s16 q11, q11, #5
|
|
|
|
|
vrshr.s16 q12, q12, #5
|
|
|
|
|
vrshr.s16 q13, q13, #5
|
|
|
|
|
vrshr.s16 q14, q14, #5
|
|
|
|
|
vrshr.s16 q15, q15, #5
|
|
|
|
|
|
|
|
|
|
; save dest pointer
|
|
|
|
|
mov r0, r1
|
|
|
|
|
|
|
|
|
|
; load destination data
|
|
|
|
|
vld1.64 {d0}, [r1], r2
|
|
|
|
|
vld1.64 {d1}, [r1], r2
|
|
|
|
|
vld1.64 {d2}, [r1], r2
|
|
|
|
|
vld1.64 {d3}, [r1], r2
|
|
|
|
|
vld1.64 {d4}, [r1], r2
|
|
|
|
|
vld1.64 {d5}, [r1], r2
|
|
|
|
|
vld1.64 {d6}, [r1], r2
|
|
|
|
|
vld1.64 {d7}, [r1]
|
|
|
|
|
|
|
|
|
|
; ROUND_POWER_OF_TWO(temp_out[j], 5) + dest[j * dest_stride + i]
|
|
|
|
|
vaddw.u8 q8, q8, d0
|
|
|
|
|
vaddw.u8 q9, q9, d1
|
|
|
|
|
vaddw.u8 q10, q10, d2
|
|
|
|
|
vaddw.u8 q11, q11, d3
|
|
|
|
|
vaddw.u8 q12, q12, d4
|
|
|
|
|
vaddw.u8 q13, q13, d5
|
|
|
|
|
vaddw.u8 q14, q14, d6
|
|
|
|
|
vaddw.u8 q15, q15, d7
|
|
|
|
|
|
|
|
|
|
; clip_pixel
|
|
|
|
|
vqmovun.s16 d0, q8
|
|
|
|
|
vqmovun.s16 d1, q9
|
|
|
|
|
vqmovun.s16 d2, q10
|
|
|
|
|
vqmovun.s16 d3, q11
|
|
|
|
|
vqmovun.s16 d4, q12
|
|
|
|
|
vqmovun.s16 d5, q13
|
|
|
|
|
vqmovun.s16 d6, q14
|
|
|
|
|
vqmovun.s16 d7, q15
|
|
|
|
|
|
|
|
|
|
; store the data
|
|
|
|
|
vst1.64 {d0}, [r0], r2
|
|
|
|
|
vst1.64 {d1}, [r0], r2
|
|
|
|
|
vst1.64 {d2}, [r0], r2
|
|
|
|
|
vst1.64 {d3}, [r0], r2
|
|
|
|
|
vst1.64 {d4}, [r0], r2
|
|
|
|
|
vst1.64 {d5}, [r0], r2
|
|
|
|
|
vst1.64 {d6}, [r0], r2
|
|
|
|
|
vst1.64 {d7}, [r0], r2
|
|
|
|
|
bx lr
|
2013-10-11 22:31:32 +02:00
|
|
|
ENDP ; |vp9_iht8x8_64_add_neon|
|
2013-09-12 20:45:15 +02:00
|
|
|
|
|
|
|
|
END
|
