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Open Source Computer Vision Library
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46 lines
1.3 KiB
46 lines
1.3 KiB
// Copyright 2015 Google Inc. 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 COPYING 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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// |
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// SSE4 version of some decoding functions. |
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// |
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// Author: Skal (pascal.massimino@gmail.com) |
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#include "./dsp.h" |
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#if defined(WEBP_USE_SSE41) |
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#include <smmintrin.h> |
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#include "../dec/vp8i_dec.h" |
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#include "../utils/utils.h" |
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static void HE16(uint8_t* dst) { // horizontal |
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int j; |
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const __m128i kShuffle3 = _mm_set1_epi8(3); |
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for (j = 16; j > 0; --j) { |
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const __m128i in = _mm_cvtsi32_si128(WebPMemToUint32(dst - 4)); |
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const __m128i values = _mm_shuffle_epi8(in, kShuffle3); |
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_mm_storeu_si128((__m128i*)dst, values); |
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dst += BPS; |
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} |
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} |
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//------------------------------------------------------------------------------ |
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// Entry point |
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extern void VP8DspInitSSE41(void); |
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WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitSSE41(void) { |
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VP8PredLuma16[3] = HE16; |
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} |
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#else // !WEBP_USE_SSE41 |
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WEBP_DSP_INIT_STUB(VP8DspInitSSE41) |
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#endif // WEBP_USE_SSE41
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