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Diffstat (limited to 'host/lib/convert/convert_impl.cpp')
| -rw-r--r-- | host/lib/convert/convert_impl.cpp | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/host/lib/convert/convert_impl.cpp b/host/lib/convert/convert_impl.cpp new file mode 100644 index 000000000..dc7f8f9dc --- /dev/null +++ b/host/lib/convert/convert_impl.cpp @@ -0,0 +1,146 @@ +// +// Copyright 2011 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 <uhd/convert.hpp> +#include <uhd/utils/log.hpp> +#include <uhd/utils/static.hpp> +#include <uhd/types/dict.hpp> +#include <uhd/exception.hpp> +#include <boost/cstdint.hpp> +#include <boost/format.hpp> +#include <boost/foreach.hpp> +#include <complex> + +using namespace uhd; + +bool convert::operator==(const convert::id_type &lhs, const convert::id_type &rhs){ + return true + and (lhs.input_format == rhs.input_format) + and (lhs.num_inputs == rhs.num_inputs) + and (lhs.output_format == rhs.output_format) + and (lhs.num_outputs == rhs.num_outputs) + ; +} + +std::string convert::id_type::to_pp_string(void) const{ + return str(boost::format( + "conversion ID\n" + " Input format: %s\n" + " Num inputs: %d\n" + " Output format: %s\n" + " Num outputs: %d\n" + ) + % this->input_format + % this->num_inputs + % this->output_format + % this->num_outputs + ); +} + +/*********************************************************************** + * Setup the table registry + **********************************************************************/ +typedef uhd::dict<convert::id_type, uhd::dict<convert::priority_type, convert::function_type> > fcn_table_type; +UHD_SINGLETON_FCN(fcn_table_type, get_table); + +/*********************************************************************** + * The registry functions + **********************************************************************/ +void uhd::convert::register_converter( + const id_type &id, + const function_type &fcn, + const priority_type prio +){ + get_table()[id][prio] = fcn; + + //----------------------------------------------------------------// + UHD_LOGV(always) << "register_converter: " << id.to_pp_string() << std::endl + << " prio: " << prio << std::endl + << std::endl + ; + //----------------------------------------------------------------// +} + +/*********************************************************************** + * The converter functions + **********************************************************************/ +convert::function_type convert::get_converter( + const id_type &id, + const priority_type prio +){ + if (not get_table().has_key(id)) throw uhd::key_error( + "Cannot find a conversion routine for " + id.to_pp_string()); + + //find a matching priority + priority_type best_prio = -1; + BOOST_FOREACH(priority_type prio_i, get_table()[id].keys()){ + if (prio_i == prio) return get_table()[id][prio]; + best_prio = std::max(best_prio, prio_i); + } + + //wanted a specific prio, didnt find + if (prio != -1) throw uhd::key_error( + "Cannot find a conversion routine [with prio] for " + id.to_pp_string()); + + //otherwise, return best prio + return get_table()[id][best_prio]; +} + +/*********************************************************************** + * Mappings for item format to byte size for all items we can + **********************************************************************/ +typedef uhd::dict<std::string, size_t> item_size_type; +UHD_SINGLETON_FCN(item_size_type, get_item_size_table); + +void convert::register_bytes_per_item( + const std::string &format, const size_t size +){ + get_item_size_table()[format] = size; +} + +size_t convert::get_bytes_per_item(const std::string &format){ + if (get_item_size_table().has_key(format)) return get_item_size_table()[format]; + + //OK. I am sorry about this. + //We didnt find a match, so lets find a match for the first term. + //This is partially a hack because of the way I append strings. + //But as long as life is kind, we can keep this. + const size_t pos = format.find("_"); + if (pos != std::string::npos){ + return get_bytes_per_item(format.substr(0, pos)); + } + + throw uhd::key_error("Cannot find an item size:\n" + format); +} + +UHD_STATIC_BLOCK(convert_register_item_sizes){ + //register standard complex types + convert::register_bytes_per_item("fc64", sizeof(std::complex<double>)); + convert::register_bytes_per_item("fc32", sizeof(std::complex<float>)); + convert::register_bytes_per_item("sc64", sizeof(std::complex<boost::int64_t>)); + convert::register_bytes_per_item("sc32", sizeof(std::complex<boost::int32_t>)); + convert::register_bytes_per_item("sc16", sizeof(std::complex<boost::int16_t>)); + convert::register_bytes_per_item("sc8", sizeof(std::complex<boost::int8_t>)); + + //register standard real types + convert::register_bytes_per_item("f64", sizeof(double)); + convert::register_bytes_per_item("f32", sizeof(float)); + convert::register_bytes_per_item("s64", sizeof(boost::int64_t)); + convert::register_bytes_per_item("s32", sizeof(boost::int32_t)); + convert::register_bytes_per_item("s16", sizeof(boost::int16_t)); + convert::register_bytes_per_item("s8", sizeof(boost::int8_t)); +} |