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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_DEFINED | 8 #ifndef SkNx_DEFINED |
9 #define SkNx_DEFINED | 9 #define SkNx_DEFINED |
10 | 10 |
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259 static double Sqrt(double val) { return ::sqrt ( val); } | 259 static double Sqrt(double val) { return ::sqrt ( val); } |
260 | 260 |
261 I pun() const { | 261 I pun() const { |
262 union { T f; I i; } pun = { fVal }; | 262 union { T f; I i; } pun = { fVal }; |
263 return pun.i; | 263 return pun.i; |
264 } | 264 } |
265 | 265 |
266 T fVal; | 266 T fVal; |
267 }; | 267 }; |
268 | 268 |
| 269 // This default implementation can be specialized by ../opts/SkNx_foo.h |
| 270 // if there's a better platform-specific shuffle strategy. |
| 271 template <typename SkNx, int... Ix> |
| 272 inline SkNx SkNx_shuffle_impl(const SkNx& src) { return SkNx( src.template kth<I
x>()... ); } |
| 273 |
| 274 // This generic shuffle can be called on either SkNi or SkNf with 1 or N indices
: |
| 275 // Sk4f f(a,b,c,d); |
| 276 // SkNx_shuffle<3>(f); // ~~~> Sk4f(d,d,d,d) |
| 277 // SkNx_shuffle<2,1,0,3>(f); // ~~~> Sk4f(c,b,a,d) |
| 278 template <int... Ix, typename SkNx> |
| 279 inline SkNx SkNx_shuffle(const SkNx& src) { return SkNx_shuffle_impl<SkNx, Ix...
>(src); } |
| 280 |
| 281 // A reminder alias that shuffles can be used to duplicate a single index across
a vector. |
| 282 template <int Ix, typename SkNx> |
| 283 inline SkNx SkNx_dup(const SkNx& src) { return SkNx_shuffle<Ix>(src); } |
| 284 |
269 } // namespace | 285 } // namespace |
270 | 286 |
| 287 |
| 288 |
| 289 |
271 // Include platform specific specializations if available. | 290 // Include platform specific specializations if available. |
272 #ifndef SKNX_NO_SIMD | 291 #ifndef SKNX_NO_SIMD |
273 #if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE2 | 292 #if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE2 |
274 #include "../opts/SkNx_sse.h" | 293 #include "../opts/SkNx_sse.h" |
275 #elif defined(SK_ARM_HAS_NEON) | 294 #elif defined(SK_ARM_HAS_NEON) |
276 #include "../opts/SkNx_neon.h" | 295 #include "../opts/SkNx_neon.h" |
277 #endif | 296 #endif |
278 #endif | 297 #endif |
279 | 298 |
280 #undef REQUIRE | 299 #undef REQUIRE |
281 | 300 |
282 typedef SkNf<2, float> Sk2f; | 301 typedef SkNf<2, float> Sk2f; |
283 typedef SkNf<2, double> Sk2d; | 302 typedef SkNf<2, double> Sk2d; |
284 typedef SkNf<2, SkScalar> Sk2s; | 303 typedef SkNf<2, SkScalar> Sk2s; |
285 | 304 |
286 typedef SkNf<4, float> Sk4f; | 305 typedef SkNf<4, float> Sk4f; |
287 typedef SkNf<4, double> Sk4d; | 306 typedef SkNf<4, double> Sk4d; |
288 typedef SkNf<4, SkScalar> Sk4s; | 307 typedef SkNf<4, SkScalar> Sk4s; |
289 | 308 |
290 typedef SkNi<4, uint16_t> Sk4h; | 309 typedef SkNi<4, uint16_t> Sk4h; |
291 typedef SkNi<8, uint16_t> Sk8h; | 310 typedef SkNi<8, uint16_t> Sk8h; |
292 typedef SkNi<16, uint16_t> Sk16h; | 311 typedef SkNi<16, uint16_t> Sk16h; |
293 | 312 |
294 typedef SkNi<16, uint8_t> Sk16b; | 313 typedef SkNi<16, uint8_t> Sk16b; |
295 | 314 |
296 typedef SkNi<4, int32_t> Sk4i; | 315 typedef SkNi<4, int32_t> Sk4i; |
297 typedef SkNi<4, uint32_t> Sk4u; | 316 typedef SkNi<4, uint32_t> Sk4u; |
298 | 317 |
299 #endif//SkNx_DEFINED | 318 #endif//SkNx_DEFINED |
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