1b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian/* 2b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian * Copyright (c) 2014 The WebM project authors. All Rights Reserved. 3b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian * 4b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian * Use of this source code is governed by a BSD-style license 5b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian * that can be found in the LICENSE file in the root of the source 6b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian * tree. An additional intellectual property rights grant can be found 7b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian * in the file PATENTS. All contributing project authors may 8b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian * be found in the AUTHORS file in the root of the source tree. 9b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian */ 10b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 11b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian#include <arm_neon.h> 12b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 137bc9febe8749e98a3812a0dc4380ceae75c29450Johann#include "./vp8_rtcd.h" 14b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 157bc9febe8749e98a3812a0dc4380ceae75c29450Johannvoid vp8_dc_only_idct_add_neon(int16_t input_dc, unsigned char *pred_ptr, 167bc9febe8749e98a3812a0dc4380ceae75c29450Johann int pred_stride, unsigned char *dst_ptr, 177bc9febe8749e98a3812a0dc4380ceae75c29450Johann int dst_stride) { 187bc9febe8749e98a3812a0dc4380ceae75c29450Johann int i; 197bc9febe8749e98a3812a0dc4380ceae75c29450Johann uint16_t a1 = ((input_dc + 4) >> 3); 207bc9febe8749e98a3812a0dc4380ceae75c29450Johann uint32x2_t d2u32 = vdup_n_u32(0); 217bc9febe8749e98a3812a0dc4380ceae75c29450Johann uint8x8_t d2u8; 227bc9febe8749e98a3812a0dc4380ceae75c29450Johann uint16x8_t q1u16; 237bc9febe8749e98a3812a0dc4380ceae75c29450Johann uint16x8_t qAdd; 24b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 257bc9febe8749e98a3812a0dc4380ceae75c29450Johann qAdd = vdupq_n_u16(a1); 26b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 277bc9febe8749e98a3812a0dc4380ceae75c29450Johann for (i = 0; i < 2; ++i) { 287bc9febe8749e98a3812a0dc4380ceae75c29450Johann d2u32 = vld1_lane_u32((const uint32_t *)pred_ptr, d2u32, 0); 297bc9febe8749e98a3812a0dc4380ceae75c29450Johann pred_ptr += pred_stride; 307bc9febe8749e98a3812a0dc4380ceae75c29450Johann d2u32 = vld1_lane_u32((const uint32_t *)pred_ptr, d2u32, 1); 317bc9febe8749e98a3812a0dc4380ceae75c29450Johann pred_ptr += pred_stride; 32b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 337bc9febe8749e98a3812a0dc4380ceae75c29450Johann q1u16 = vaddw_u8(qAdd, vreinterpret_u8_u32(d2u32)); 347bc9febe8749e98a3812a0dc4380ceae75c29450Johann d2u8 = vqmovun_s16(vreinterpretq_s16_u16(q1u16)); 357bc9febe8749e98a3812a0dc4380ceae75c29450Johann 367bc9febe8749e98a3812a0dc4380ceae75c29450Johann vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d2u8), 0); 377bc9febe8749e98a3812a0dc4380ceae75c29450Johann dst_ptr += dst_stride; 387bc9febe8749e98a3812a0dc4380ceae75c29450Johann vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d2u8), 1); 397bc9febe8749e98a3812a0dc4380ceae75c29450Johann dst_ptr += dst_stride; 407bc9febe8749e98a3812a0dc4380ceae75c29450Johann } 41b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian} 42