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#!/usr/bin/env python
#
# Copyright 2010-2011 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/>.
#
TMPL_TEXT = """
#import time
/***********************************************************************
* This file was generated by $file on $time.strftime("%c")
**********************************************************************/
typedef size_t pred_type;
\#include <uhd/utils/algorithm.hpp>
\#include <boost/lexical_cast.hpp>
\#include <boost/detail/endian.hpp>
\#include <stdexcept>
enum dir_type{
DIR_OTW_TO_CPU = 0,
DIR_CPU_TO_OTW = 1
};
pred_type make_pred(const std::string &markup, dir_type &dir){
pred_type pred = 0;
try{
std::vector<std::string> tokens = std::split_string(markup, "_");
//token 0 is <convert>
std::string inp_type = tokens.at(1);
std::string num_inps = tokens.at(2);
//token 3 is <to>
std::string out_type = tokens.at(4);
std::string num_outs = tokens.at(5);
std::string swap_type = tokens.at(6);
std::string cpu_type, otw_type;
if (inp_type.find("item") == std::string::npos){
cpu_type = inp_type;
otw_type = out_type;
dir = DIR_CPU_TO_OTW;
}
else{
cpu_type = out_type;
otw_type = inp_type;
dir = DIR_OTW_TO_CPU;
}
if (cpu_type == "fc32") pred |= $ph.fc32_p;
else if (cpu_type == "sc16") pred |= $ph.sc16_p;
else throw std::runtime_error("unhandled io type " + cpu_type);
if (otw_type == "item32") pred |= $ph.item32_p;
else throw std::runtime_error("unhandled otw type " + otw_type);
int num_inputs = boost::lexical_cast<int>(num_inps);
int num_outputs = boost::lexical_cast<int>(num_outs);
switch(num_inputs*num_outputs){ //FIXME treated as one value
case 1: pred |= $ph.chan1_p; break;
case 2: pred |= $ph.chan2_p; break;
case 3: pred |= $ph.chan3_p; break;
case 4: pred |= $ph.chan4_p; break;
default: throw std::runtime_error("unhandled number of channels");
}
if (swap_type == "bswap") pred |= $ph.bswap_p;
else if (swap_type == "nswap") pred |= $ph.nswap_p;
else throw std::runtime_error("unhandled swap type");
}
catch(...){
throw std::runtime_error("convert::make_pred: could not parse markup: " + markup);
}
return pred;
}
UHD_INLINE pred_type make_pred(
const io_type_t &io_type,
const otw_type_t &otw_type,
size_t num_inputs,
size_t num_outputs
){
pred_type pred = 0;
switch(otw_type.byteorder){
\#ifdef BOOST_BIG_ENDIAN
case otw_type_t::BO_BIG_ENDIAN: pred |= $ph.nswap_p; break;
case otw_type_t::BO_LITTLE_ENDIAN: pred |= $ph.bswap_p; break;
\#else
case otw_type_t::BO_BIG_ENDIAN: pred |= $ph.bswap_p; break;
case otw_type_t::BO_LITTLE_ENDIAN: pred |= $ph.nswap_p; break;
\#endif
case otw_type_t::BO_NATIVE: pred |= $ph.nswap_p; break;
default: throw std::runtime_error("unhandled otw byteorder type");
}
switch(otw_type.get_sample_size()){
case sizeof(boost::uint32_t): pred |= $ph.item32_p; break;
default: throw std::runtime_error("unhandled otw sample size");
}
switch(io_type.tid){
case io_type_t::COMPLEX_FLOAT32: pred |= $ph.fc32_p; break;
case io_type_t::COMPLEX_INT16: pred |= $ph.sc16_p; break;
default: throw std::runtime_error("unhandled io type id");
}
switch(num_inputs*num_outputs){ //FIXME treated as one value
case 1: pred |= $ph.chan1_p; break;
case 2: pred |= $ph.chan2_p; break;
case 3: pred |= $ph.chan3_p; break;
case 4: pred |= $ph.chan4_p; break;
default: throw std::runtime_error("unhandled number of channels");
}
return pred;
}
"""
def parse_tmpl(_tmpl_text, **kwargs):
from Cheetah.Template import Template
return str(Template(_tmpl_text, kwargs))
class ph:
bswap_p = 0b00001
nswap_p = 0b00000
item32_p = 0b00000
sc16_p = 0b00010
fc32_p = 0b00000
chan1_p = 0b00000
chan2_p = 0b00100
chan3_p = 0b01000
chan4_p = 0b01100
nbits = 4 #see above
@staticmethod
def has(pred, mask, flag): return (pred & mask) == flag
@staticmethod
def get_swap_type(pred):
mask = 0b1
if ph.has(pred, mask, ph.bswap_p): return 'bswap'
if ph.has(pred, mask, ph.nswap_p): return 'nswap'
raise NotImplementedError
@staticmethod
def get_dev_type(pred):
mask = 0b0
if ph.has(pred, mask, ph.item32_p): return 'item32'
raise NotImplementedError
@staticmethod
def get_host_type(pred):
mask = 0b10
if ph.has(pred, mask, ph.sc16_p): return 'sc16'
if ph.has(pred, mask, ph.fc32_p): return 'fc32'
raise NotImplementedError
@staticmethod
def get_num_chans(pred):
mask = 0b1100
if ph.has(pred, mask, ph.chan1_p): return 1
if ph.has(pred, mask, ph.chan2_p): return 2
if ph.has(pred, mask, ph.chan3_p): return 3
if ph.has(pred, mask, ph.chan4_p): return 4
raise NotImplementedError
if __name__ == '__main__':
import sys, os
file = os.path.basename(__file__)
open(sys.argv[1], 'w').write(parse_tmpl(TMPL_TEXT, file=file, ph=ph))
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