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Side by Side Diff: sky/engine/wtf/SaturatedArithmetic.h

Issue 746023002: Make absolute and sort all Sky headers (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 6 years, 1 month ago
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1 /* 1 /*
2 * Copyright (c) 2012, Google Inc. All rights reserved. 2 * Copyright (c) 2012, Google Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are 5 * modification, are permitted provided that the following conditions are
6 * met: 6 * met:
7 * 7 *
8 * * Redistributions of source code must retain the above copyright 8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above 10 * * Redistributions in binary form must reproduce the above
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24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */ 29 */
30 30
31 #ifndef SaturatedArithmetic_h 31 #ifndef SaturatedArithmetic_h
32 #define SaturatedArithmetic_h 32 #define SaturatedArithmetic_h
33 33
34 #include "wtf/CPU.h" 34 #include <stdint.h>
35 #include <limits> 35 #include <limits>
36 #include <stdint.h> 36 #include "sky/engine/wtf/CPU.h"
37 37
38 #if CPU(ARM) && COMPILER(GCC) && __OPTIMIZE__ 38 #if CPU(ARM) && COMPILER(GCC) && __OPTIMIZE__
39 39
40 // If we're building ARM on GCC we replace the C++ versions with some 40 // If we're building ARM on GCC we replace the C++ versions with some
41 // native ARM assembly for speed. 41 // native ARM assembly for speed.
42 #include "wtf/asm/SaturatedArithmeticARM.h" 42 #include "sky/engine/wtf/asm/SaturatedArithmeticARM.h"
43 43
44 #else 44 #else
45 45
46 ALWAYS_INLINE int32_t saturatedAddition(int32_t a, int32_t b) 46 ALWAYS_INLINE int32_t saturatedAddition(int32_t a, int32_t b)
47 { 47 {
48 uint32_t ua = a; 48 uint32_t ua = a;
49 uint32_t ub = b; 49 uint32_t ub = b;
50 uint32_t result = ua + ub; 50 uint32_t result = ua + ub;
51 51
52 // Can only overflow if the signed bit of the two values match. If the 52 // Can only overflow if the signed bit of the two values match. If the
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110 std::numeric_limits<int>::max() >> FractionalShift; 110 std::numeric_limits<int>::max() >> FractionalShift;
111 111
112 if (value >= intMaxForLayoutUnit) 112 if (value >= intMaxForLayoutUnit)
113 return std::numeric_limits<int>::max(); 113 return std::numeric_limits<int>::max();
114 114
115 return value << FractionalShift; 115 return value << FractionalShift;
116 } 116 }
117 117
118 #endif // CPU(ARM) && COMPILER(GCC) 118 #endif // CPU(ARM) && COMPILER(GCC)
119 #endif // SaturatedArithmetic_h 119 #endif // SaturatedArithmetic_h
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