OLD | NEW |
| (Empty) |
1 // Copyright 2013 the V8 project authors. All rights reserved. | |
2 // Redistribution and use in source and binary forms, with or without | |
3 // modification, are permitted provided that the following conditions are | |
4 // met: | |
5 // | |
6 // * Redistributions of source code must retain the above copyright | |
7 // notice, this list of conditions and the following disclaimer. | |
8 // * Redistributions in binary form must reproduce the above | |
9 // copyright notice, this list of conditions and the following | |
10 // disclaimer in the documentation and/or other materials provided | |
11 // with the distribution. | |
12 // * Neither the name of Google Inc. nor the names of its | |
13 // contributors may be used to endorse or promote products derived | |
14 // from this software without specific prior written permission. | |
15 // | |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
27 | |
28 #ifndef V8_TRIG_TABLE_H_ | |
29 #define V8_TRIG_TABLE_H_ | |
30 | |
31 | |
32 namespace v8 { | |
33 namespace internal { | |
34 | |
35 class TrigonometricLookupTable : public AllStatic { | |
36 public: | |
37 // Casting away const-ness to use as argument for typed array constructor. | |
38 static void* sin_table() { | |
39 return const_cast<double*>(&kSinTable[0]); | |
40 } | |
41 | |
42 static void* cos_x_interval_table() { | |
43 return const_cast<double*>(&kCosXIntervalTable[0]); | |
44 } | |
45 | |
46 static double samples_over_pi_half() { return kSamplesOverPiHalf; } | |
47 static int samples() { return kSamples; } | |
48 static int table_num_bytes() { return kTableSize * sizeof(*kSinTable); } | |
49 static int table_size() { return kTableSize; } | |
50 | |
51 private: | |
52 static const double kSinTable[]; | |
53 static const double kCosXIntervalTable[]; | |
54 static const int kSamples; | |
55 static const int kTableSize; | |
56 static const double kSamplesOverPiHalf; | |
57 }; | |
58 | |
59 } } // namespace v8::internal | |
60 | |
61 #endif // V8_TRIG_TABLE_H_ | |
OLD | NEW |