comparison: src/ascension/datatypes.h
src/ascension/datatypes.h
- changeset 217
- 4b3c974eab44
- parent 216
- 943980fa37b5
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| 216:943980fa37b5 | 217:4b3c974eab44 |
|---|---|
| 231 } else { | 231 } else { |
| 232 return x; | 232 return x; |
| 233 } | 233 } |
| 234 } | 234 } |
| 235 | 235 |
| 236 static inline int asc_sgn(int x) { | |
| 237 return x < 0 ? -1 : 1; | |
| 238 } | |
| 239 | |
| 240 static inline int asc_sgnf(float x) { | |
| 241 return asc_fround_zero(x) < 0 ? -1 : 1; | |
| 242 } | |
| 243 | |
| 236 /** | 244 /** |
| 237 * Returns the cosine of x. | 245 * Returns the cosine of x. |
| 238 * | 246 * |
| 239 * This function eliminates result values close to zero. | 247 * This function eliminates result values close to zero. |
| 240 * | 248 * |
| 295 } | 303 } |
| 296 | 304 |
| 297 // -------------------------------------------------------------------------- | 305 // -------------------------------------------------------------------------- |
| 298 // Vector Functions | 306 // Vector Functions |
| 299 // -------------------------------------------------------------------------- | 307 // -------------------------------------------------------------------------- |
| 308 | |
| 309 static inline asc_vec2i asc_vec2_ftoi(asc_vec2f v) { | |
| 310 return ASC_VEC2I(v.x, v.y); | |
| 311 } | |
| 312 | |
| 313 static inline asc_vec2f asc_vec2_itof(asc_vec2i v) { | |
| 314 return ASC_VEC2F(v.x, v.y); | |
| 315 } | |
| 316 | |
| 317 static inline asc_vec2u asc_vec2_ftou(asc_vec2f v) { | |
| 318 return ASC_VEC2U(v.x, v.y); | |
| 319 } | |
| 320 | |
| 321 static inline asc_vec2f asc_vec2_utof(asc_vec2u v) { | |
| 322 return ASC_VEC2F(v.x, v.y); | |
| 323 } | |
| 300 | 324 |
| 301 static inline asc_vec2f asc_vec2f_scale(asc_vec2f v, float s) { | 325 static inline asc_vec2f asc_vec2f_scale(asc_vec2f v, float s) { |
| 302 return ASC_VEC2F(v.x*s, v.y*s); | 326 return ASC_VEC2F(v.x*s, v.y*s); |
| 303 } | 327 } |
| 304 | 328 |
