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| Rev | Author | Line No. | Line |
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| 2 | mjames | 1 | #include "ref.h" |
| 2 | |||
| 3 | void ref_sin_cos_f32( |
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| 4 | float32_t theta, |
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| 5 | float32_t * pSinVal, |
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| 6 | float32_t * pCosVal) |
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| 7 | { |
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| 8 | //theta is given in degrees |
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| 9 | *pSinVal = sinf(theta * 6.28318530717959f / 360.0f); |
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| 10 | *pCosVal = cosf(theta * 6.28318530717959f / 360.0f); |
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| 11 | } |
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| 12 | |||
| 13 | void ref_sin_cos_q31( |
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| 14 | q31_t theta, |
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| 15 | q31_t * pSinVal, |
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| 16 | q31_t * pCosVal) |
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| 17 | { |
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| 18 | //theta is given in the range [-1,1) to represent [-pi,pi) |
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| 19 | *pSinVal = (q31_t)(sinf((float32_t)theta * 3.14159265358979f / 2147483648.0f) * 2147483648.0f); |
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| 20 | *pCosVal = (q31_t)(cosf((float32_t)theta * 3.14159265358979f / 2147483648.0f) * 2147483648.0f); |
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| 21 | } |