ref: 0310ebd8d1f44eca865f33c063ad4410969d3b94
dir: /vp9/common/arm/neon/vp9_iht8x8_add_neon.c/
/* * 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); }