69 lines
1.8 KiB
Text
69 lines
1.8 KiB
Text
/*
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Takes a .gim graphics file;
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prints a simple ascii representation of the colors.
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Optimized for light-text-on-dark-background terminals
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(inverts the colors), and subsamples the height by .5
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to better maintain aspect ratio of square files.
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-- John Hewitt, CIS 341 2017sp
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*/
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int program (int argc, string[] argv) {
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var s = argv[1];
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var width = get_width(s);
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var height = get_height(s);
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var bytes = load_image(s);
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print_string(string_of_int(width));
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print_string("x");
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print_string(string_of_int(height));
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print_string("\n");
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var rowlen = 0;
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var row = new int[width];
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var off = 1;
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for (var i=0; i < width*height; i=i+1;) {
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/*print_string(string_of_int(i));
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print_string("x");
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print_string(string_of_int(rowlen));
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print_string("x");
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print_string(string_of_int(width));
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print_string("x");
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print_string(string_of_int(bytes[i]));
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print_string("\n");*/
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if (bytes[i] > 230) {
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row[rowlen] = 64; /* @ */
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} else if (bytes[i] > 204) {
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row[rowlen] = 37; /* % */
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} else if (bytes[i] > 179) {
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row[rowlen] = 35; /* # */
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} else if (bytes[i] > 153) {
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row[rowlen] = 42; /* * */
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} else if (bytes[i] > 128) {
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row[rowlen] = 43; /* + */
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} else if (bytes[i] > 102) {
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row[rowlen] = 61; /* = */
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} else if (bytes[i] > 77) {
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row[rowlen] = 58; /* : */
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} else if (bytes[i] > 51) {
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row[rowlen] = 45; /* - */
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} else if (bytes[i] > 26) {
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row[rowlen] = 46; /* . */
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} else {
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row[rowlen] = 32; /* */
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}
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if (rowlen == width-1) {
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var test = off [&] 1;
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if (test == 1) {
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print_string(string_of_array(row));
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print_string("\n");
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off = 0;
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} else {
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off = 1;
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}
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rowlen = 0;
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} else {
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rowlen = rowlen + 1;
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}
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}
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return 0;
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}
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