root / volk / include / volk / volk_32f_s32f_convert_32i_a.h @ 5f145a32
History | View | Annotate | Download (5 kB)
| 1 | #ifndef INCLUDED_volk_32f_s32f_convert_32i_a_H
|
|---|---|
| 2 | #define INCLUDED_volk_32f_s32f_convert_32i_a_H
|
| 3 | |
| 4 | #include <volk/volk_common.h> |
| 5 | #include <inttypes.h> |
| 6 | #include <stdio.h> |
| 7 | |
| 8 | #ifdef LV_HAVE_AVX
|
| 9 | #include <immintrin.h> |
| 10 | /*!
|
| 11 | \brief Multiplies each point in the input buffer by the scalar value, then converts the result into a 32 bit integer value |
| 12 | \param inputVector The floating point input data buffer |
| 13 | \param outputVector The 32 bit output data buffer |
| 14 | \param scalar The value multiplied against each point in the input buffer |
| 15 | \param num_points The number of data values to be converted |
| 16 | */ |
| 17 | static inline void volk_32f_s32f_convert_32i_a_avx(int32_t* outputVector, const float* inputVector, const float scalar, unsigned int num_points){ |
| 18 | unsigned int number = 0; |
| 19 | |
| 20 | const unsigned int eighthPoints = num_points / 8; |
| 21 | |
| 22 | const float* inputVectorPtr = (const float*)inputVector; |
| 23 | int32_t* outputVectorPtr = outputVector; |
| 24 | __m256 vScalar = _mm256_set1_ps(scalar); |
| 25 | __m256 inputVal1; |
| 26 | __m256i intInputVal1; |
| 27 | |
| 28 | for(;number < eighthPoints; number++){
|
| 29 | inputVal1 = _mm256_load_ps(inputVectorPtr); inputVectorPtr += 8;
|
| 30 | |
| 31 | intInputVal1 = _mm256_cvtps_epi32(_mm256_mul_ps(inputVal1, vScalar)); |
| 32 | |
| 33 | _mm256_store_si256((__m256i*)outputVectorPtr, intInputVal1); |
| 34 | outputVectorPtr += 8;
|
| 35 | } |
| 36 | |
| 37 | number = eighthPoints * 8;
|
| 38 | for(; number < num_points; number++){
|
| 39 | outputVector[number] = (int32_t)(inputVector[number] * scalar); |
| 40 | } |
| 41 | } |
| 42 | #endif /* LV_HAVE_AVX */ |
| 43 | |
| 44 | #ifdef LV_HAVE_SSE2
|
| 45 | #include <emmintrin.h> |
| 46 | /*!
|
| 47 | \brief Multiplies each point in the input buffer by the scalar value, then converts the result into a 32 bit integer value |
| 48 | \param inputVector The floating point input data buffer |
| 49 | \param outputVector The 32 bit output data buffer |
| 50 | \param scalar The value multiplied against each point in the input buffer |
| 51 | \param num_points The number of data values to be converted |
| 52 | */ |
| 53 | static inline void volk_32f_s32f_convert_32i_a_sse2(int32_t* outputVector, const float* inputVector, const float scalar, unsigned int num_points){ |
| 54 | unsigned int number = 0; |
| 55 | |
| 56 | const unsigned int quarterPoints = num_points / 4; |
| 57 | |
| 58 | const float* inputVectorPtr = (const float*)inputVector; |
| 59 | int32_t* outputVectorPtr = outputVector; |
| 60 | __m128 vScalar = _mm_set_ps1(scalar); |
| 61 | __m128 inputVal1; |
| 62 | __m128i intInputVal1; |
| 63 | |
| 64 | for(;number < quarterPoints; number++){
|
| 65 | inputVal1 = _mm_load_ps(inputVectorPtr); inputVectorPtr += 4;
|
| 66 | |
| 67 | intInputVal1 = _mm_cvtps_epi32(_mm_mul_ps(inputVal1, vScalar)); |
| 68 | |
| 69 | _mm_store_si128((__m128i*)outputVectorPtr, intInputVal1); |
| 70 | outputVectorPtr += 4;
|
| 71 | } |
| 72 | |
| 73 | number = quarterPoints * 4;
|
| 74 | for(; number < num_points; number++){
|
| 75 | outputVector[number] = (int32_t)(inputVector[number] * scalar); |
| 76 | } |
| 77 | } |
| 78 | #endif /* LV_HAVE_SSE2 */ |
| 79 | |
| 80 | #ifdef LV_HAVE_SSE
|
| 81 | #include <xmmintrin.h> |
| 82 | /*!
|
| 83 | \brief Multiplies each point in the input buffer by the scalar value, then converts the result into a 32 bit integer value |
| 84 | \param inputVector The floating point input data buffer |
| 85 | \param outputVector The 32 bit output data buffer |
| 86 | \param scalar The value multiplied against each point in the input buffer |
| 87 | \param num_points The number of data values to be converted |
| 88 | */ |
| 89 | static inline void volk_32f_s32f_convert_32i_a_sse(int32_t* outputVector, const float* inputVector, const float scalar, unsigned int num_points){ |
| 90 | unsigned int number = 0; |
| 91 | |
| 92 | const unsigned int quarterPoints = num_points / 4; |
| 93 | |
| 94 | const float* inputVectorPtr = (const float*)inputVector; |
| 95 | int32_t* outputVectorPtr = outputVector; |
| 96 | __m128 vScalar = _mm_set_ps1(scalar); |
| 97 | __m128 ret; |
| 98 | |
| 99 | __VOLK_ATTR_ALIGNED(16) float outputFloatBuffer[4]; |
| 100 | |
| 101 | for(;number < quarterPoints; number++){
|
| 102 | ret = _mm_load_ps(inputVectorPtr); |
| 103 | inputVectorPtr += 4;
|
| 104 | |
| 105 | ret = _mm_mul_ps(ret, vScalar); |
| 106 | |
| 107 | _mm_store_ps(outputFloatBuffer, ret); |
| 108 | *outputVectorPtr++ = (int32_t)(outputFloatBuffer[0]);
|
| 109 | *outputVectorPtr++ = (int32_t)(outputFloatBuffer[1]);
|
| 110 | *outputVectorPtr++ = (int32_t)(outputFloatBuffer[2]);
|
| 111 | *outputVectorPtr++ = (int32_t)(outputFloatBuffer[3]);
|
| 112 | } |
| 113 | |
| 114 | number = quarterPoints * 4;
|
| 115 | for(; number < num_points; number++){
|
| 116 | outputVector[number] = (int32_t)(inputVector[number] * scalar); |
| 117 | } |
| 118 | } |
| 119 | #endif /* LV_HAVE_SSE */ |
| 120 | |
| 121 | #ifdef LV_HAVE_GENERIC
|
| 122 | /*!
|
| 123 | \brief Multiplies each point in the input buffer by the scalar value, then converts the result into a 32 bit integer value |
| 124 | \param inputVector The floating point input data buffer |
| 125 | \param outputVector The 32 bit output data buffer |
| 126 | \param scalar The value multiplied against each point in the input buffer |
| 127 | \param num_points The number of data values to be converted |
| 128 | */ |
| 129 | static inline void volk_32f_s32f_convert_32i_a_generic(int32_t* outputVector, const float* inputVector, const float scalar, unsigned int num_points){ |
| 130 | int32_t* outputVectorPtr = outputVector; |
| 131 | const float* inputVectorPtr = inputVector; |
| 132 | unsigned int number = 0; |
| 133 | |
| 134 | for(number = 0; number < num_points; number++){ |
| 135 | *outputVectorPtr++ = ((int32_t)(*inputVectorPtr++ * scalar)); |
| 136 | } |
| 137 | } |
| 138 | #endif /* LV_HAVE_GENERIC */ |
| 139 | |
| 140 | |
| 141 | |
| 142 | |
| 143 | #endif /* INCLUDED_volk_32f_s32f_convert_32i_a_H */ |