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| 1 /* |
| 2 * Copyright 2014 The Android Open Source Project |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. |
| 6 */ |
| 7 |
| 8 #ifndef SkColor_opts_SSE2_DEFINED |
| 9 #define SkColor_opts_SSE2_DEFINED |
| 10 |
| 11 #include <emmintrin.h> |
| 12 |
| 13 static inline __m128i SkMul16ShiftRound_SSE(__m128i a, __m128i b, int shift) { |
| 14 __m128i prod = _mm_mullo_epi16(a, b); |
| 15 prod = _mm_add_epi16(prod, _mm_set1_epi16(1 << (shift - 1))); |
| 16 prod = _mm_add_epi16(prod, _mm_srli_epi16(prod, shift)); |
| 17 prod = _mm_srli_epi16(prod, shift); |
| 18 |
| 19 return prod; |
| 20 } |
| 21 |
| 22 static inline __m128i SkPackRGB16_SSE(__m128i r, __m128i g, __m128i b) { |
| 23 r = _mm_slli_epi16(r, SK_R16_SHIFT); |
| 24 g = _mm_slli_epi16(g, SK_G16_SHIFT); |
| 25 b = _mm_slli_epi16(b, SK_B16_SHIFT); |
| 26 |
| 27 __m128i c = _mm_or_si128(r, g); |
| 28 return _mm_or_si128(c, b); |
| 29 } |
| 30 |
| 31 #endif//SkColor_opts_SSE2_DEFINED |
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