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authorJustOff <Off.Just.Off@gmail.com>2018-06-29 20:57:44 +0300
committerJustOff <Off.Just.Off@gmail.com>2018-06-29 20:57:44 +0300
commit47e9f9d4c1674cb3ee3bf29c415141520225243d (patch)
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Sync libwebp sources with https://chromium.googlesource.com/webm/libwebp/+/v1.0.0
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diff --git a/media/libwebp/dsp/common_sse41.h b/media/libwebp/dsp/common_sse41.h
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+// Copyright 2016 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 code common to several files.
+//
+// Author: Vincent Rabaud (vrabaud@google.com)
+
+#ifndef WEBP_DSP_COMMON_SSE41_H_
+#define WEBP_DSP_COMMON_SSE41_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(WEBP_USE_SSE41)
+#include <smmintrin.h>
+
+//------------------------------------------------------------------------------
+// Channel mixing.
+// Shuffles the input buffer as A0 0 0 A1 0 0 A2 ...
+#define WEBP_SSE41_SHUFF(OUT, IN0, IN1) \
+ OUT##0 = _mm_shuffle_epi8(*IN0, shuff0); \
+ OUT##1 = _mm_shuffle_epi8(*IN0, shuff1); \
+ OUT##2 = _mm_shuffle_epi8(*IN0, shuff2); \
+ OUT##3 = _mm_shuffle_epi8(*IN1, shuff0); \
+ OUT##4 = _mm_shuffle_epi8(*IN1, shuff1); \
+ OUT##5 = _mm_shuffle_epi8(*IN1, shuff2);
+
+// Pack the planar buffers
+// rrrr... rrrr... gggg... gggg... bbbb... bbbb....
+// triplet by triplet in the output buffer rgb as rgbrgbrgbrgb ...
+static WEBP_INLINE void VP8PlanarTo24b_SSE41(
+ __m128i* const in0, __m128i* const in1, __m128i* const in2,
+ __m128i* const in3, __m128i* const in4, __m128i* const in5) {
+ __m128i R0, R1, R2, R3, R4, R5;
+ __m128i G0, G1, G2, G3, G4, G5;
+ __m128i B0, B1, B2, B3, B4, B5;
+
+ // Process R.
+ {
+ const __m128i shuff0 = _mm_set_epi8(
+ 5, -1, -1, 4, -1, -1, 3, -1, -1, 2, -1, -1, 1, -1, -1, 0);
+ const __m128i shuff1 = _mm_set_epi8(
+ -1, 10, -1, -1, 9, -1, -1, 8, -1, -1, 7, -1, -1, 6, -1, -1);
+ const __m128i shuff2 = _mm_set_epi8(
+ -1, -1, 15, -1, -1, 14, -1, -1, 13, -1, -1, 12, -1, -1, 11, -1);
+ WEBP_SSE41_SHUFF(R, in0, in1)
+ }
+
+ // Process G.
+ {
+ // Same as before, just shifted to the left by one and including the right
+ // padding.
+ const __m128i shuff0 = _mm_set_epi8(
+ -1, -1, 4, -1, -1, 3, -1, -1, 2, -1, -1, 1, -1, -1, 0, -1);
+ const __m128i shuff1 = _mm_set_epi8(
+ 10, -1, -1, 9, -1, -1, 8, -1, -1, 7, -1, -1, 6, -1, -1, 5);
+ const __m128i shuff2 = _mm_set_epi8(
+ -1, 15, -1, -1, 14, -1, -1, 13, -1, -1, 12, -1, -1, 11, -1, -1);
+ WEBP_SSE41_SHUFF(G, in2, in3)
+ }
+
+ // Process B.
+ {
+ const __m128i shuff0 = _mm_set_epi8(
+ -1, 4, -1, -1, 3, -1, -1, 2, -1, -1, 1, -1, -1, 0, -1, -1);
+ const __m128i shuff1 = _mm_set_epi8(
+ -1, -1, 9, -1, -1, 8, -1, -1, 7, -1, -1, 6, -1, -1, 5, -1);
+ const __m128i shuff2 = _mm_set_epi8(
+ 15, -1, -1, 14, -1, -1, 13, -1, -1, 12, -1, -1, 11, -1, -1, 10);
+ WEBP_SSE41_SHUFF(B, in4, in5)
+ }
+
+ // OR the different channels.
+ {
+ const __m128i RG0 = _mm_or_si128(R0, G0);
+ const __m128i RG1 = _mm_or_si128(R1, G1);
+ const __m128i RG2 = _mm_or_si128(R2, G2);
+ const __m128i RG3 = _mm_or_si128(R3, G3);
+ const __m128i RG4 = _mm_or_si128(R4, G4);
+ const __m128i RG5 = _mm_or_si128(R5, G5);
+ *in0 = _mm_or_si128(RG0, B0);
+ *in1 = _mm_or_si128(RG1, B1);
+ *in2 = _mm_or_si128(RG2, B2);
+ *in3 = _mm_or_si128(RG3, B3);
+ *in4 = _mm_or_si128(RG4, B4);
+ *in5 = _mm_or_si128(RG5, B5);
+ }
+}
+
+#undef WEBP_SSE41_SHUFF
+
+// Convert four packed four-channel buffers like argbargbargbargb... into the
+// split channels aaaaa ... rrrr ... gggg .... bbbbb ......
+static WEBP_INLINE void VP8L32bToPlanar_SSE41(__m128i* const in0,
+ __m128i* const in1,
+ __m128i* const in2,
+ __m128i* const in3) {
+ // aaaarrrrggggbbbb
+ const __m128i shuff0 =
+ _mm_set_epi8(15, 11, 7, 3, 14, 10, 6, 2, 13, 9, 5, 1, 12, 8, 4, 0);
+ const __m128i A0 = _mm_shuffle_epi8(*in0, shuff0);
+ const __m128i A1 = _mm_shuffle_epi8(*in1, shuff0);
+ const __m128i A2 = _mm_shuffle_epi8(*in2, shuff0);
+ const __m128i A3 = _mm_shuffle_epi8(*in3, shuff0);
+ // A0A1R0R1
+ // G0G1B0B1
+ // A2A3R2R3
+ // G0G1B0B1
+ const __m128i B0 = _mm_unpacklo_epi32(A0, A1);
+ const __m128i B1 = _mm_unpackhi_epi32(A0, A1);
+ const __m128i B2 = _mm_unpacklo_epi32(A2, A3);
+ const __m128i B3 = _mm_unpackhi_epi32(A2, A3);
+ *in3 = _mm_unpacklo_epi64(B0, B2);
+ *in2 = _mm_unpackhi_epi64(B0, B2);
+ *in1 = _mm_unpacklo_epi64(B1, B3);
+ *in0 = _mm_unpackhi_epi64(B1, B3);
+}
+
+#endif // WEBP_USE_SSE41
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // WEBP_DSP_COMMON_SSE41_H_