2231669a83
Spin out highbd idct functions. BUG=webm:1412 Change-Id: I0cfe4117c00039b6778c59c022eee79ad089a2af
34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
/*
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* Copyright (c) 2015 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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#ifndef VPX_DSP_X86_HIGHBD_INV_TXFM_SSE2_H_
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#define VPX_DSP_X86_HIGHBD_INV_TXFM_SSE2_H_
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#include <emmintrin.h> // SSE2
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#include "./vpx_config.h"
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#include "vpx/vpx_integer.h"
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#include "vpx_dsp/inv_txfm.h"
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#include "vpx_dsp/x86/txfm_common_sse2.h"
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static INLINE __m128i clamp_high_sse2(__m128i value, int bd) {
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__m128i ubounded, retval;
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const __m128i zero = _mm_set1_epi16(0);
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const __m128i one = _mm_set1_epi16(1);
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const __m128i max = _mm_sub_epi16(_mm_slli_epi16(one, bd), one);
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ubounded = _mm_cmpgt_epi16(value, max);
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retval = _mm_andnot_si128(ubounded, value);
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ubounded = _mm_and_si128(ubounded, max);
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retval = _mm_or_si128(retval, ubounded);
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retval = _mm_and_si128(retval, _mm_cmpgt_epi16(retval, zero));
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return retval;
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}
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#endif // VPX_DSP_X86_HIGHBD_INV_TXFM_SSE2_H_
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