solvespace/tools/ttf2c.cpp

#include <windows.h>
#include <stdio.h>
#include <commctrl.h>

//-----------------------------------------------------------------------------
// Entry point into the program.
//-----------------------------------------------------------------------------
int main(int argc, char** argv)
{
    if(argc != 2) {
        fprintf(stderr, "usage: ttf2c [output]");
        return 1;
    }

    InitCommonControls();

    // A monospaced font
    HFONT font = CreateFont(16, 9, 0, 0, FW_REGULAR, false,
        false, false, ANSI_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
        DEFAULT_QUALITY, FF_DONTCARE, "Lucida Console");

    HDC hdc = CreateDC("DISPLAY", NULL, NULL, NULL);
    HBITMAP bitmap = CreateCompatibleBitmap(hdc, 30, 30);

    SelectObject(hdc, bitmap);
    SelectObject(hdc, font);

    FILE* out = fopen(argv[1], "w");
    if(!out) {
        fprintf(stderr, "cannot open output file %s", argv[1]);
        return 1;
    }

    fprintf(out, "static const uint8_t FontTexture[256*16*16] = {\n");

    int c;
    for(c = 0; c < 128; c++) {

        RECT r;
        r.left = 0; r.top = 0;
        r.right = 30; r.bottom = 30;
        FillRect(hdc, &r, (HBRUSH)GetStockObject(BLACK_BRUSH));

        SetBkColor(hdc, RGB(0, 0, 0));
        SetTextColor(hdc, RGB(255, 255, 255));
        char str[2] = { c, 0 };
        TextOut(hdc, 0, 0, str, 1);

        int i, j;
        for(i = 0; i < 16; i++) {
            for(j = 0; j < 16; j++) {
                COLORREF c = GetPixel(hdc, i, j);
                fprintf(out, "%3d, ", c ? 255 : 0);
            }
            fprintf(out, "\n");
        }
        fprintf(out, "\n");
    }
    fprintf(out, "#include \"bitmapextra.table.h\"\n");
    fprintf(out, "};\n");

    fclose(out);

    return 0;
}