All screenshots are too small to figure what the demo is... Any of them is ftview result?
On 5/2/2018 6:38 PM, 哈尔滨工程大学 朱国梁 wrote: > Dear Werner, > I get real screen snapshots now and I will restate my problem. > Firstly, pictire1 is the result of a small demo.In the demo I use the LCD > filter like this. > FT_Library_SetLcdFilter(library, FT_LCD_FILTER_LIGHT); > unsignerd char weight = 0x55; > FT_Library_SetLcdFilterWeights(library, &weight); > The picture2 is the result that I add the text codes in the small demo to our > spectrum analyzer project program.it seems not working correctly. It is more > darker than picture1. > The picture3 is the result that I set the weight = 0x00.The text dispeared. > But when I set backgroud to other colors, I can see the very dark font.So I > think it is just more darker than weight = 0x55. > The picture4 is the result that I remove the sentence > FT_Library_SetLcdFilterWeights(library, weight).I can get white font. > Sincerely, > Zhu GuoLiang > > ---Original--- > > From: "Werner LEMBERG"<[email protected]> > Date: Sun, Apr 29, 2018 14:17 PM > To: "r030t1"<[email protected]>; > Cc: "freetype"<[email protected]>;"790687208"<[email protected]>; > Subject: Re: [ft] a confusing problem when > usingFT_Library_SetLcdFilterWeights(); > > >>> Unfortunately, such hand-held camera snapshots are not very helpful >>> in analyzing your problem. Can't you simply press the `PrtScr' >>> button to get real screen snapshots that you can further process to >>> get PNG images? >> >> He mentioned the problem manifests on a spectrum analyzer. He may >> not have a good way to obtain a screenshot. I suggest he get one. > > Ah, ok. > >>> I also suggest that you play around with the `ftview' demo program >>> (which allows full control over LCD weights), also checking its >>> source code. >> >> Some antialiasing options seem to thin the glyphs, making them >> faint. I think this is what the OP does not like. Can you comment >> on this? > > It depends on the the right gamma value. Maybe he is able to make > `ftview' run on WindowsCE (theoretically, it should work). > > > Werner > _______________________________________________ Freetype mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/freetype
