IBMFontMatrixImporter.cpp

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#include <importers/IBMFontMatrixImporter.hpp>

#include <importers/IBMFonts.hpp>

namespace mic {
namespace importers {

IBMFontMatrixImporter::IBMFontMatrixImporter(std::string node_name_) : Importer (node_name_),
        font_type("font_type",font16x16_type)
{
    // Register properties - so their values can be overridden (read from the configuration file).
    registerProperty(font_type);
}

bool IBMFontMatrixImporter::importData(){

    LOG(LSTATUS) << "Importing IBM VGA fonts of size " << ( font_type == font8x8_type ? "8x8" : "16x16");

    // Select adequate font table.
//  const uint8_t* font_table = ( font_type == font8x8_type ? font8x8_table : font16x16_table );

//  const uint16_t*  mask = ( font_type == font8x8_type ? mask8x8 : mask16x16 );

    // "Load font dataset with labels.
    for(size_t i=1; i < 94; i++ ) {

        // Create new matrix of size font_type x font_type (8x8 v 16x16).
        mic::types::MatrixXfPtr mat (new mic::types::MatrixXf((int)font_type, (int)font_type));

        if (font_type == font8x8_type) {
            // Generate 8x8 characters - font_type = 8.

            for (size_t r = 0; r < 8; r++) {
                // Get line.
                uint8_t line = font8x8_table[8*i+r];
                // Iterate through characters in given line.
                for (size_t c = 0; c < 8; c++) {
                    (*mat)(r, c) = ((line & mask8x8[8-c]) != 0);
                }//: for
            }//: for
        } else {
            // Generate 16x16 characters - font_type = 16.

            for (size_t r = 0; r < 16; r++) {
                uint16_t line = ((uint16_t*)font16x16_table)[16 *i+r];
                for (size_t c = 0; c < 16; c++) {
                    (*mat)(r, c) = ((line & mask16x16[c]) != 0);
                }//: for
            }//: for

        }//: else

        // Add character and label to vectors.
        sample_data.push_back(mat);
        sample_labels.push_back(std::make_shared <char> (font_labels_table[i]) );

    }//: for
    LOG(LINFO) << "Imported " << sample_data.size() << " fonts";

    // Fill the indices table(!)
    for (size_t i=0; i < sample_data.size(); i++ )
        sample_indices.push_back(i);

    // Count the classes.
    countClasses();

    LOG(LINFO) << "Data import finished";

    return true;
}


} /* namespace importers */
} /* namespace mic */