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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkBlitRow.h" | 8 #include "SkBlitRow.h" |
9 #include "SkBlitMask.h" | 9 #include "SkBlitMask.h" |
10 #include "SkColorPriv.h" | 10 #include "SkColorPriv.h" |
11 #include "SkUtils.h" | 11 #include "SkUtils.h" |
12 | 12 |
13 #define UNROLL | 13 #define UNROLL |
14 | 14 |
15 static void S32_Opaque_BlitRow32(SkPMColor* SK_RESTRICT dst, | 15 static void S32_Opaque_BlitRow32(SkPMColor* SK_RESTRICT dst, |
16 const SkPMColor* SK_RESTRICT src, | 16 const SkPMColor* SK_RESTRICT src, |
17 int count, U8CPU alpha) { | 17 int count, U8CPU alpha) { |
18 SkASSERT(255 == alpha); | 18 SkASSERT(255 == alpha); |
19 sk_memcpy32(dst, src, count); | 19 memcpy(dst, src, count * 4); |
20 } | 20 } |
21 | 21 |
22 static void S32_Blend_BlitRow32(SkPMColor* SK_RESTRICT dst, | 22 static void S32_Blend_BlitRow32(SkPMColor* SK_RESTRICT dst, |
23 const SkPMColor* SK_RESTRICT src, | 23 const SkPMColor* SK_RESTRICT src, |
24 int count, U8CPU alpha) { | 24 int count, U8CPU alpha) { |
25 SkASSERT(alpha <= 255); | 25 SkASSERT(alpha <= 255); |
26 if (count > 0) { | 26 if (count > 0) { |
27 unsigned src_scale = SkAlpha255To256(alpha); | 27 unsigned src_scale = SkAlpha255To256(alpha); |
28 unsigned dst_scale = 256 - src_scale; | 28 unsigned dst_scale = 256 - src_scale; |
29 | 29 |
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153 invA += invA >> 7; | 153 invA += invA >> 7; |
154 SkASSERT(invA < 256); // We've already handled alpha == 0 above. | 154 SkASSERT(invA < 256); // We've already handled alpha == 0 above. |
155 | 155 |
156 Sk16h colorHighAndRound = Sk4px::DupPMColor(color).widenHi() + Sk16h(128); | 156 Sk16h colorHighAndRound = Sk4px::DupPMColor(color).widenHi() + Sk16h(128); |
157 Sk16b invA_16x(invA); | 157 Sk16b invA_16x(invA); |
158 | 158 |
159 Sk4px::MapSrc(count, dst, src, [&](const Sk4px& src4) -> Sk4px { | 159 Sk4px::MapSrc(count, dst, src, [&](const Sk4px& src4) -> Sk4px { |
160 return (src4 * invA_16x).addNarrowHi(colorHighAndRound); | 160 return (src4 * invA_16x).addNarrowHi(colorHighAndRound); |
161 }); | 161 }); |
162 } | 162 } |
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