Revert "VX_RPP - Fixing Resample build issue (#1416)" (#1417)

This reverts commit ce77dc7.

Author: kiritigowda

amd_openvx_extensions/amd_rpp/source/tensor/Resample.cpp

@@ -40,6 +40,40 @@ struct ResampleLocalData {
     size_t outputTensorDims[RPP_MAX_TENSOR_DIMS];
 };
 
+inline float sinc(float x) {
+    x *= M_PI;
+    return (std::abs(x) < 1e-5f) ? (1.0f - x * x * (1.0f / 6)) : std::sin(x) / x;
+}
+
+inline double hann(double x) {
+    return 0.5 * (1 + std::cos(x * M_PI));
+}
+
+// initialization function used for filling the values in Resampling window (RpptResamplingWindow)
+// using the coeffs and lobes value this function generates a LUT (look up table) which is further used in Resample audio augmentation
+#if RPP_AUDIO
+inline void windowed_sinc(RpptResamplingWindow &window, int32_t coeffs, int32_t lobes) {
+    float scale = 2.0f * lobes / (coeffs - 1);
+    float scale_envelope = 2.0f / coeffs;
+    window.coeffs = coeffs;
+    window.lobes = lobes;
+    window.lookup.clear();
+    window.lookup.resize(coeffs + 5);
+    window.lookupSize = window.lookup.size();
+    int32_t center = (coeffs - 1) * 0.5f;
+    for (int32_t i = 0; i < coeffs; i++) {
+        float x = (i - center) * scale;
+        float y = (i - center) * scale_envelope;
+        float w = sinc(x) * hann(y);
+        window.lookup[i + 1] = w;
+    }
+    window.center = center + 1;
+    window.scale = 1.0f / scale;
+    window.pCenter = _mm_set1_ps(window.center);
+    window.pScale = _mm_set1_ps(window.scale);
+}
+#endif
+
 void update_destination_roi(ResampleLocalData *data, RpptROI *src_roi, RpptROI *dst_roi) {
     float scale_ratio;
     for (uint32_t i = 0; i < data->pSrcDesc->n; i++) {