| /* |
| * Copyright (c) 2014 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 <arm_neon.h> |
| #include <assert.h> |
| |
| #include "./vp9_rtcd.h" |
| #include "./vpx_config.h" |
| #include "vp9/common/vp9_common.h" |
| #include "vp9/common/arm/neon/vp9_iht_neon.h" |
| #include "vpx_dsp/arm/idct_neon.h" |
| #include "vpx_dsp/arm/mem_neon.h" |
| #include "vpx_dsp/arm/transpose_neon.h" |
| |
| void vp9_iht8x8_64_add_neon(const tran_low_t *input, uint8_t *dest, int stride, |
| int tx_type) { |
| const int16x8_t cospis = vld1q_s16(kCospi); |
| const int16x4_t cospis0 = vget_low_s16(cospis); // cospi 0, 8, 16, 24 |
| const int16x4_t cospis1 = vget_high_s16(cospis); // cospi 4, 12, 20, 28 |
| int16x8_t a[8]; |
| |
| a[0] = load_tran_low_to_s16q(input + 0 * 8); |
| a[1] = load_tran_low_to_s16q(input + 1 * 8); |
| a[2] = load_tran_low_to_s16q(input + 2 * 8); |
| a[3] = load_tran_low_to_s16q(input + 3 * 8); |
| a[4] = load_tran_low_to_s16q(input + 4 * 8); |
| a[5] = load_tran_low_to_s16q(input + 5 * 8); |
| a[6] = load_tran_low_to_s16q(input + 6 * 8); |
| a[7] = load_tran_low_to_s16q(input + 7 * 8); |
| |
| transpose_s16_8x8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]); |
| |
| switch (tx_type) { |
| case DCT_DCT: |
| idct8x8_64_1d_bd8_kernel(cospis0, cospis1, a); |
| transpose_s16_8x8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]); |
| idct8x8_64_1d_bd8_kernel(cospis0, cospis1, a); |
| break; |
| |
| case ADST_DCT: |
| idct8x8_64_1d_bd8_kernel(cospis0, cospis1, a); |
| transpose_s16_8x8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]); |
| iadst8(a); |
| break; |
| |
| case DCT_ADST: |
| iadst8(a); |
| transpose_s16_8x8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]); |
| idct8x8_64_1d_bd8_kernel(cospis0, cospis1, a); |
| break; |
| |
| default: |
| assert(tx_type == ADST_ADST); |
| iadst8(a); |
| transpose_s16_8x8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]); |
| iadst8(a); |
| break; |
| } |
| |
| idct8x8_add8x8_neon(a, dest, stride); |
| } |