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75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
/*
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* compose
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* compose a function call
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* This macro takes as input a Function object and composes
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* a function call by inspecting the types and argument names
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*/
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/
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{% macro compose(fun) %}
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{# ----------- Return type ------------- #}
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{%- if not fun.rtp|void -%} retval = {% endif -%}
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{%- if fun.clss -%}inst.{%- else -%} cv:: {%- endif -%}
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{{fun.name}}(
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{#- ----------- Required ------------- -#}
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{%- for arg in fun.req -%}
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{%- if arg.ref == '*' -%}&{%- endif -%}
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{{arg.name}}
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{%- if not loop.last %}, {% endif %}
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{% endfor %}
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{#- ----------- Optional ------------- -#}
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{% if fun.req and fun.opt %}, {% endif %}
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{%- for opt in fun.opt -%}
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{%- if opt.ref == '*' -%}&{%- endif -%}
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{{opt.name}}
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{%- if not loop.last -%}, {% endif %}
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{%- endfor -%}
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);
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{%- endmacro %}
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// create a full function invocation
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{%- macro generate(fun) -%}
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// unpack the arguments
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{# ----------- Inputs ------------- #}
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{% for arg in fun.req|inputs %}
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{{arg.tp}} {{arg.name}} = inputs[{{ loop.index0 }}].to{{arg.tp|toUpperCamelCase}}();
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{% endfor %}
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{% for opt in fun.opt|inputs %}
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{{opt.tp}} {{opt.name}} = (nrhs > {{loop.index0 + fun.req|inputs|length}}) ? inputs[{{loop.index0 + fun.req|inputs|length}}].to{{opt.tp|toUpperCamelCase}}() : {% if opt.ref == '*' -%} {{opt.tp}}() {%- else -%} {{opt.default}} {%- endif %};
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{% endfor %}
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{# ----------- Outputs ------------ #}
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{% for arg in fun.req|only|outputs %}
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{{arg.tp}} {{arg.name}};
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{% endfor %}
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{% for opt in fun.opt|only|outputs %}
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{{opt.tp}} {{opt.name}};
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{% endfor %}
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{% if not fun.rtp|void %}
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{{fun.rtp}} retval;
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{% endif %}
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// call the opencv function
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// [out =] namespace.fun(src1, ..., srcn, dst1, ..., dstn, opt1, ..., optn);
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try {
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{{ compose(fun) }}
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} catch(cv::Exception& e) {
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mexErrMsgTxt(std::string("cv::exception caught: ").append(e.what()).c_str());
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} catch(std::exception& e) {
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mexErrMsgTxt(std::string("std::exception caught: ").append(e.what()).c_str());
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} catch(...) {
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mexErrMsgTxt("Uncaught exception occurred in {{fun.name}}");
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}
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// assign the outputs into the bridge
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{% if not fun.rtp|void %}
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outputs[0] = retval;
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{% endif %}
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{% for arg in fun.req|outputs %}
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outputs[{{loop.index0 + fun.rtp|void|not}}] = {{arg.name}};
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{% endfor %}
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{% for opt in fun.opt|outputs %}
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outputs[{{loop.index0 + fun.rtp|void|not + fun.req|outputs|length}}] = {{opt.name}};
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{% endfor %}
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{% endmacro %}
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