The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/opts/SkUtils_opts_SSE2.cpp
gfx/skia/trunk/src/opts/SkUtils_opts_SSE2.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
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| -1:000000000000 | 0:3072ee3a20a9 |
|---|---|
| 1 | |
| 2 /* | |
| 3 * Copyright 2009 The Android Open Source Project | |
| 4 * | |
| 5 * Use of this source code is governed by a BSD-style license that can be | |
| 6 * found in the LICENSE file. | |
| 7 */ | |
| 8 | |
| 9 | |
| 10 #include <emmintrin.h> | |
| 11 #include "SkUtils_opts_SSE2.h" | |
| 12 | |
| 13 void sk_memset16_SSE2(uint16_t *dst, uint16_t value, int count) | |
| 14 { | |
| 15 SkASSERT(dst != NULL && count >= 0); | |
| 16 | |
| 17 // dst must be 2-byte aligned. | |
| 18 SkASSERT((((size_t) dst) & 0x01) == 0); | |
| 19 | |
| 20 if (count >= 32) { | |
| 21 while (((size_t)dst) & 0x0F) { | |
| 22 *dst++ = value; | |
| 23 --count; | |
| 24 } | |
| 25 __m128i *d = reinterpret_cast<__m128i*>(dst); | |
| 26 __m128i value_wide = _mm_set1_epi16(value); | |
| 27 while (count >= 32) { | |
| 28 _mm_store_si128(d , value_wide); | |
| 29 _mm_store_si128(d + 1, value_wide); | |
| 30 _mm_store_si128(d + 2, value_wide); | |
| 31 _mm_store_si128(d + 3, value_wide); | |
| 32 d += 4; | |
| 33 count -= 32; | |
| 34 } | |
| 35 dst = reinterpret_cast<uint16_t*>(d); | |
| 36 } | |
| 37 while (count > 0) { | |
| 38 *dst++ = value; | |
| 39 --count; | |
| 40 } | |
| 41 } | |
| 42 | |
| 43 void sk_memset32_SSE2(uint32_t *dst, uint32_t value, int count) | |
| 44 { | |
| 45 SkASSERT(dst != NULL && count >= 0); | |
| 46 | |
| 47 // dst must be 4-byte aligned. | |
| 48 SkASSERT((((size_t) dst) & 0x03) == 0); | |
| 49 | |
| 50 if (count >= 16) { | |
| 51 while (((size_t)dst) & 0x0F) { | |
| 52 *dst++ = value; | |
| 53 --count; | |
| 54 } | |
| 55 __m128i *d = reinterpret_cast<__m128i*>(dst); | |
| 56 __m128i value_wide = _mm_set1_epi32(value); | |
| 57 while (count >= 16) { | |
| 58 _mm_store_si128(d , value_wide); | |
| 59 _mm_store_si128(d + 1, value_wide); | |
| 60 _mm_store_si128(d + 2, value_wide); | |
| 61 _mm_store_si128(d + 3, value_wide); | |
| 62 d += 4; | |
| 63 count -= 16; | |
| 64 } | |
| 65 dst = reinterpret_cast<uint32_t*>(d); | |
| 66 } | |
| 67 while (count > 0) { | |
| 68 *dst++ = value; | |
| 69 --count; | |
| 70 } | |
| 71 } |
