From 2c1f833a092ef7af17f072749940bcb47da19aa6 Mon Sep 17 00:00:00 2001 From: wolfbeast Date: Mon, 24 Jul 2017 13:19:25 +0200 Subject: Add libwebp 0.6.0 to the tree --- media/libwebp/dsp/dec_sse41.c | 46 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 media/libwebp/dsp/dec_sse41.c (limited to 'media/libwebp/dsp/dec_sse41.c') diff --git a/media/libwebp/dsp/dec_sse41.c b/media/libwebp/dsp/dec_sse41.c new file mode 100644 index 000000000..4e81ec4d8 --- /dev/null +++ b/media/libwebp/dsp/dec_sse41.c @@ -0,0 +1,46 @@ +// Copyright 2015 Google Inc. All Rights Reserved. +// +// Use of this source code is governed by a BSD-style license +// that can be found in the COPYING 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. +// ----------------------------------------------------------------------------- +// +// SSE4 version of some decoding functions. +// +// Author: Skal (pascal.massimino@gmail.com) + +#include "./dsp.h" + +#if defined(WEBP_USE_SSE41) + +#include +#include "../dec/vp8i_dec.h" +#include "../utils/utils.h" + +static void HE16(uint8_t* dst) { // horizontal + int j; + const __m128i kShuffle3 = _mm_set1_epi8(3); + for (j = 16; j > 0; --j) { + const __m128i in = _mm_cvtsi32_si128(WebPMemToUint32(dst - 4)); + const __m128i values = _mm_shuffle_epi8(in, kShuffle3); + _mm_storeu_si128((__m128i*)dst, values); + dst += BPS; + } +} + +//------------------------------------------------------------------------------ +// Entry point + +extern void VP8DspInitSSE41(void); + +WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitSSE41(void) { + VP8PredLuma16[3] = HE16; +} + +#else // !WEBP_USE_SSE41 + +WEBP_DSP_INIT_STUB(VP8DspInitSSE41) + +#endif // WEBP_USE_SSE41 -- cgit v1.2.3