GetFontDescription() on Windows and Mac



  • Hello,

    I am using GeClipMap::GetFontDescription() to retrieve a BaseContainer with data that I can use to draw nice looking text into a GeClipMap.

    This is the code on Mac:

    	BaseContainer fontSettings;
    	if (!GeClipMap::GetFontDescription(String("Helvetica Bold"), GE_FONT_NAME_POSTSCRIPT, &fontSettings))
    		return false;
    

    This is the code on Windows:

    	BaseContainer fontSettings;
    	if (!GeClipMap::GetFontDescription(String("Arial"), GE_FONT_NAME_POSTSCRIPT, &fontSettings))
    		return false;
    

    On Mac, it works just fine. It is very fast (I actually do this call from within SceneHookData::Draw() with no performance issues). On Windows, this call needs almost a second to finish, and then always returns false. Why?

    I tried with different font names on Windows ("Arial", "Courier", "Segoe UI" (which is the one Cinema 4D is using for its UI)), no success. GetFontDescription() always returns false.



  • Hi,

    there is definitely something broken here for Windows and it seems to go deeper than just GetFontDescription. I have to go now, but this is how far I got:

    EDIT: FYI, I am aware that you are on C++

    """Some tests for GeClipMap.GetFontDescription.
    """
    
    import c4d
    import itertools
    import time
    
    FONT_NAMES = [
        "Arial",
        "Bold",
        "Helvetica",
        "Helvetica Bold",
        "Helvetica-Bold",
        "Times New Roman"
    ]
    FONT_FLAGS = {
        "c4d.GE_FONT_NAME_DISPLAY": c4d.GE_FONT_NAME_DISPLAY,
        "c4d.GE_FONT_NAME_FAMILY": c4d.GE_FONT_NAME_FAMILY,
        "c4d.GE_FONT_NAME_STYLE": c4d.GE_FONT_NAME_STYLE,
        "c4d.GE_FONT_NAME_POSTSCRIPT": c4d.GE_FONT_NAME_POSTSCRIPT
    }
    
    
    def time_it_get_font_description(ctx, name, flag):
        """Runs GeClipMap.GetFontDescription and measures its execution time.
        """
        t0 = time.time()
        res = ctx.GetFontDescription(name, FONT_FLAGS[flag])
        t = time.time() - t0
    
        # Note that here the container itself does not seem to be malformed, i.e.
        # len(res) won't freeze Cinema.
        if isinstance(res, c4d.BaseContainer) and len(res) is 0:
            res = None
    
        msg = "name: {}, flag: {}, res: {}, time: {}."
        print msg.format(name, flag, res, t)
    
    
    def main():
        """
        """
        ctx = c4d.bitmaps.GeClipMap()
        ctx.Init(512, 512, 32)
    
        # Run all possible combinations of our GeClipMap.GetFontDescription
        # arguments and pretty print the execution time and results.
        for name, flag in itertools.product(FONT_NAMES, FONT_FLAGS):
            time_it_get_font_description(ctx, name, flag)
    
        # Running this we will take about half a second for the flag
        # "GE_FONT_NAME_POSTSCRIPT" on my machine. Other flags are fine, 
        # the returned containers are however empty for all flags.
    
        # This commented line will freeze Cinema 4D WIN R20, where the
        # culprit is len(bc), i.e. the returned font container seems to
        # be somehow malformed.
        print "\n All fonts:"
        for cid, bc in ctx.EnumerateFonts(c4d.GE_CM_FONTSORT_FLAT):
            # print cid, bc if len(bc) != 0 else None
            print cid, bc
    
    
    if __name__ == '__main__':
        main()
    
    

    The output is:

    name: Arial, flag: c4d.GE_FONT_NAME_POSTSCRIPT, res: None, time: 0.56299996376.
    name: Arial, flag: c4d.GE_FONT_NAME_STYLE, res: None, time: 0.0.
    name: Arial, flag: c4d.GE_FONT_NAME_DISPLAY, res: None, time: 0.0.
    name: Arial, flag: c4d.GE_FONT_NAME_FAMILY, res: None, time: 0.0.
    name: Bold, flag: c4d.GE_FONT_NAME_POSTSCRIPT, res: None, time: 0.663000106812.
    name: Bold, flag: c4d.GE_FONT_NAME_STYLE, res: None, time: 0.0.
    name: Bold, flag: c4d.GE_FONT_NAME_DISPLAY, res: None, time: 0.0.
    name: Bold, flag: c4d.GE_FONT_NAME_FAMILY, res: None, time: 0.0.
    name: Helvetica, flag: c4d.GE_FONT_NAME_POSTSCRIPT, res: None, time: 0.766000032425.
    name: Helvetica, flag: c4d.GE_FONT_NAME_STYLE, res: None, time: 0.0.
    name: Helvetica, flag: c4d.GE_FONT_NAME_DISPLAY, res: None, time: 0.0.
    name: Helvetica, flag: c4d.GE_FONT_NAME_FAMILY, res: None, time: 0.0.
    name: Helvetica Bold, flag: c4d.GE_FONT_NAME_POSTSCRIPT, res: None, time: 0.757999897003.
    name: Helvetica Bold, flag: c4d.GE_FONT_NAME_STYLE, res: None, time: 0.0.
    name: Helvetica Bold, flag: c4d.GE_FONT_NAME_DISPLAY, res: None, time: 0.0.
    name: Helvetica Bold, flag: c4d.GE_FONT_NAME_FAMILY, res: None, time: 0.0.
    name: Helvetica-Bold, flag: c4d.GE_FONT_NAME_POSTSCRIPT, res: None, time: 0.762000083923.
    name: Helvetica-Bold, flag: c4d.GE_FONT_NAME_STYLE, res: None, time: 0.0.
    name: Helvetica-Bold, flag: c4d.GE_FONT_NAME_DISPLAY, res: None, time: 0.0.
    name: Helvetica-Bold, flag: c4d.GE_FONT_NAME_FAMILY, res: None, time: 0.0.
    name: Times New Roman, flag: c4d.GE_FONT_NAME_POSTSCRIPT, res: None, time: 0.69000005722.
    name: Times New Roman, flag: c4d.GE_FONT_NAME_STYLE, res: None, time: 0.0.
    name: Times New Roman, flag: c4d.GE_FONT_NAME_DISPLAY, res: None, time: 0.0.
    name: Times New Roman, flag: c4d.GE_FONT_NAME_FAMILY, res: None, time: 0.0.
    
     All fonts:
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    273 <c4d.BaseContainer object at 0x00000265F2666FC0>
    274 <c4d.BaseContainer object at 0x00000265F2653030>
    275 <c4d.BaseContainer object at 0x00000265F2653060>
    276 <c4d.BaseContainer object at 0x00000265F2653090>
    277 <c4d.BaseContainer object at 0x00000265F26530C0>
    278 <c4d.BaseContainer object at 0x00000265F26530F0>
    279 <c4d.BaseContainer object at 0x00000265F2653120>
    280 <c4d.BaseContainer object at 0x00000265F2653150>
    281 <c4d.BaseContainer object at 0x00000265F2653180>
    282 <c4d.BaseContainer object at 0x00000265F26531B0>
    283 <c4d.BaseContainer object at 0x00000265F26531E0>
    284 <c4d.BaseContainer object at 0x00000265F2653210>
    285 <c4d.BaseContainer object at 0x00000265F2653240>
    286 <c4d.BaseContainer object at 0x00000265F2653270>
    287 <c4d.BaseContainer object at 0x00000265F26532A0>
    288 <c4d.BaseContainer object at 0x00000265F26532D0>
    289 <c4d.BaseContainer object at 0x00000265F2653300>
    290 <c4d.BaseContainer object at 0x00000265F2653330>
    291 <c4d.BaseContainer object at 0x00000265F2653360>
    292 <c4d.BaseContainer object at 0x00000265F2653390>
    293 <c4d.BaseContainer object at 0x00000265F26533C0>
    294 <c4d.BaseContainer object at 0x00000265F26533F0>
    295 <c4d.BaseContainer object at 0x00000265F2653420>
    296 <c4d.BaseContainer object at 0x00000265F2653450>
    297 <c4d.BaseContainer object at 0x00000265F2653480>
    298 <c4d.BaseContainer object at 0x00000265F26534B0>
    299 <c4d.BaseContainer object at 0x00000265F26534E0>
    300 <c4d.BaseContainer object at 0x00000265F2653510>
    >>> 
    

    Cheers,
    zipit



  • I just found one possible solution: Just ignore the return value of GetFontDescription(). It returns false, but if I use the data from the container anyway, I actually can draw text successfully. Strange...

    Thanks for testing this, @zipit ! Hope to hear something from the SDK Team about this, too :-)

    That really does look fishy.

    Cheers,
    Frank



  • @fwilleke80 said in GetFontDescription() on Windows and Mac:

    GeClipMap::GetFontDescription()

    hi,
    on both OS, this function will only work with the flag GE_FONT_NAME_POSTSCRIPT

    on mac, it does almost nothing, it just pick the name passed as argument and insert it in the BaseContainer at ID FONT_POSTSCRIPT_NAME
    this function will return false only if you use another flag.

    on windows,
    it does use the function EnumFontFamiliesExW (from microsoft). As written on this page it does create a LOGFONTW

    It's calling another function that will feed the basecontainer it will only work with font type == TRUETYPE_FONTTYPE or DEVICE_FONTTYPE. Other cases it will return false.

    If it's a familly it will loop to retrieve all the fonts.
    If not it will return the informations.

    So this look like a bug, I'll ask the dev team why on OSX it does nothing. :)

    By the way, the Draw function isn't the right place to do this even if it's fast on osx.

    Cheers,
    Manuel.



  • hello,

    fast reply, confirmation it's normal.

    The name used to select a font on macOS is its postscript font name, hence nothing to do here. On Windows you have to enumerate all fonts to find the right one and get the postscript name of its 'post' table.

    Cheers,
    Manuel



  • hi,

    without further feedback i'll set this thread as solved tomorrow.

    Cheer,
    Manuel



  • Go ahead ;-)



  • Hello to all

    @zipit said in GetFontDescription() on Windows and Mac:

    FONT_FLAGS

    Thank you
    i miss flags in https://plugincafe.maxon.net/post/58961