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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 #ifndef SkNx_neon_DEFINED | 8 #ifndef SkNx_neon_DEFINED |
9 #define SkNx_neon_DEFINED | 9 #define SkNx_neon_DEFINED |
10 | 10 |
11 #include <arm_neon.h> | 11 namespace { // See SkNx.h |
12 | 12 |
13 // Well, this is absurd. The shifts require compile-time constant arguments. | 13 // Well, this is absurd. The shifts require compile-time constant arguments. |
14 | 14 |
15 #define SHIFT8(op, v, bits) switch(bits) { \ | 15 #define SHIFT8(op, v, bits) switch(bits) { \ |
16 case 1: return op(v, 1); case 2: return op(v, 2); case 3: return op(v
, 3); \ | 16 case 1: return op(v, 1); case 2: return op(v, 2); case 3: return op(v
, 3); \ |
17 case 4: return op(v, 4); case 5: return op(v, 5); case 6: return op(v
, 6); \ | 17 case 4: return op(v, 4); case 5: return op(v, 5); case 6: return op(v
, 6); \ |
18 case 7: return op(v, 7); \ | 18 case 7: return op(v, 7); \ |
19 } return fVec | 19 } return fVec |
20 | 20 |
21 #define SHIFT16(op, v, bits) if (bits < 8) { SHIFT8(op, v, bits); } switch(bits)
{ \ | 21 #define SHIFT16(op, v, bits) if (bits < 8) { SHIFT8(op, v, bits); } switch(bits)
{ \ |
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373 return vgetq_lane_u8(fVec, k&16); | 373 return vgetq_lane_u8(fVec, k&16); |
374 } | 374 } |
375 | 375 |
376 uint8x16_t fVec; | 376 uint8x16_t fVec; |
377 }; | 377 }; |
378 | 378 |
379 #undef SHIFT32 | 379 #undef SHIFT32 |
380 #undef SHIFT16 | 380 #undef SHIFT16 |
381 #undef SHIFT8 | 381 #undef SHIFT8 |
382 | 382 |
| 383 } // namespace |
| 384 |
383 #endif//SkNx_neon_DEFINED | 385 #endif//SkNx_neon_DEFINED |
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