ref: 8477a66fc886b2e00a65f8eb3edaf649ceb5caba
dir: /vpx_dsp/x86/highbd_inv_txfm_sse2.h/
/*
* Copyright (c) 2015 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.
*/
#ifndef VPX_DSP_X86_HIGHBD_INV_TXFM_SSE2_H_
#define VPX_DSP_X86_HIGHBD_INV_TXFM_SSE2_H_
#include <emmintrin.h> // SSE2
#include "./vpx_config.h"
#include "vpx/vpx_integer.h"
#include "vpx_dsp/inv_txfm.h"
#include "vpx_dsp/x86/txfm_common_sse2.h"
static INLINE __m128i clamp_high_sse2(__m128i value, int bd) {
__m128i ubounded, retval;
const __m128i zero = _mm_set1_epi16(0);
const __m128i one = _mm_set1_epi16(1);
const __m128i max = _mm_sub_epi16(_mm_slli_epi16(one, bd), one);
ubounded = _mm_cmpgt_epi16(value, max);
retval = _mm_andnot_si128(ubounded, value);
ubounded = _mm_and_si128(ubounded, max);
retval = _mm_or_si128(retval, ubounded);
retval = _mm_and_si128(retval, _mm_cmpgt_epi16(retval, zero));
return retval;
}
#endif // VPX_DSP_X86_HIGHBD_INV_TXFM_SSE2_H_