From 2d4c77489f540a6978497d25dd3e316a2f16e9ad Mon Sep 17 00:00:00 2001
From: Josh Blum <josh@joshknows.com>
Date: Wed, 28 Aug 2013 17:07:36 -0700
Subject: convert: added sc12 and fc32 converters

---
 host/lib/convert/convert_fc32_item32.cpp | 113 +++++++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 host/lib/convert/convert_fc32_item32.cpp

(limited to 'host/lib/convert/convert_fc32_item32.cpp')

diff --git a/host/lib/convert/convert_fc32_item32.cpp b/host/lib/convert/convert_fc32_item32.cpp
new file mode 100644
index 000000000..29bfefd46
--- /dev/null
+++ b/host/lib/convert/convert_fc32_item32.cpp
@@ -0,0 +1,113 @@
+//
+// Copyright 2013 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include "convert_common.hpp"
+#include <uhd/utils/byteswap.hpp>
+#include <uhd/utils/msg.hpp>
+#include <boost/math/special_functions/round.hpp>
+#include <vector>
+
+using namespace uhd::convert;
+
+typedef boost::uint32_t (*to32_type)(boost::uint32_t);
+
+template <typename type, to32_type tohost>
+struct convert_fc32_item32_1_to_star_1 : public converter
+{
+    convert_fc32_item32_1_to_star_1(void)
+    {
+        //NOP
+    }
+
+    void set_scalar(const double scalar)
+    {
+        _scalar = scalar;
+    }
+
+    void operator()(const input_type &inputs, const output_type &outputs, const size_t nsamps)
+    {
+        const item32_t *input = reinterpret_cast<const item32_t *>(inputs[0]);
+        std::complex<type> *output = reinterpret_cast<std::complex<type> *>(outputs[0]);
+
+        size_t i = 0;
+        for (size_t o = 0; o < nsamps; o++)
+        {
+            const item32_t i32 = tohost(input[i++]);
+            const item32_t q32 = tohost(input[i++]);
+            const float i_f32 = reinterpret_cast<const float &>(i32);
+            const float q_f32 = reinterpret_cast<const float &>(q32);
+            output[o] = std::complex<type>(type(i_f32*_scalar), type(q_f32*_scalar));
+        }
+    }
+
+    double _scalar;
+};
+
+template <typename type, to32_type towire>
+struct convert_star_1_to_fc32_item32_1 : public converter
+{
+    convert_star_1_to_fc32_item32_1(void)
+    {
+        //NOP
+    }
+
+    void set_scalar(const double scalar)
+    {
+        _scalar = scalar;
+    }
+
+    void operator()(const input_type &inputs, const output_type &outputs, const size_t nsamps)
+    {
+        const std::complex<type> *input = reinterpret_cast<const std::complex<type> *>(inputs[0]);
+        item32_t *output = reinterpret_cast<item32_t *>(outputs[0]);
+
+        size_t o = 0;
+        for (size_t i = 0; i < nsamps; i++)
+        {
+            const float i_f32 = type(input[i].real()*_scalar);
+            const float q_f32 = type(input[i].imag()*_scalar);
+            const item32_t i32 = towire(reinterpret_cast<const item32_t &>(i_f32));
+            const item32_t q32 = towire(reinterpret_cast<const item32_t &>(q_f32));
+            output[o++] = i32; output[o++] = q32;
+        }
+    }
+
+    double _scalar;
+};
+
+#define __make_registrations(itype, otype, fcn, type, conv) \
+static converter::sptr make_convert_ ## itype ## _1_ ## otype ## _1(void) \
+{ \
+    return converter::sptr(new fcn<type, conv>()); \
+} \
+UHD_STATIC_BLOCK(register_convert_ ## itype ## _1_ ## otype ## _1) \
+{ \
+    uhd::convert::id_type id; \
+    id.num_inputs = 1; id.num_outputs = 1;  \
+    id.input_format = #itype; id.output_format = #otype; \
+    uhd::convert::register_converter(id, &make_convert_ ## itype ## _1_ ## otype ## _1, PRIORITY_GENERAL); \
+}
+
+__make_registrations(fc32_item32_le, fc32, convert_fc32_item32_1_to_star_1, float, uhd::wtohx)
+__make_registrations(fc32_item32_be, fc32, convert_fc32_item32_1_to_star_1, float, uhd::ntohx)
+__make_registrations(fc32_item32_le, fc64, convert_fc32_item32_1_to_star_1, double, uhd::wtohx)
+__make_registrations(fc32_item32_be, fc64, convert_fc32_item32_1_to_star_1, double, uhd::ntohx)
+
+__make_registrations(fc32, fc32_item32_le, convert_star_1_to_fc32_item32_1, float, uhd::wtohx)
+__make_registrations(fc32, fc32_item32_be, convert_star_1_to_fc32_item32_1, float, uhd::ntohx)
+__make_registrations(fc64, fc32_item32_le, convert_star_1_to_fc32_item32_1, double, uhd::wtohx)
+__make_registrations(fc64, fc32_item32_be, convert_star_1_to_fc32_item32_1, double, uhd::ntohx)
-- 
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