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Re: [ft-devel] Antialiasing

From: Scott Long
Subject: Re: [ft-devel] Antialiasing
Date: Wed, 22 Mar 2006 09:07:46 -0800
User-agent: Mozilla Thunderbird 1.0.7 (X11/20050923)

huels wrote:

This gives me not a 1 Bit Bitmap. The Bitmap is still with antialiasing. I
get not only the values 0 and 255.
What is the problem? Thanks for your help.
Regards Stephan

The problem is that you don't seem to understand how 1-bit bitmaps work. There are 8 pixels packed in each byte of monochrome bitmap data. Not only are you examining their values incorrectly, you are iterating far beyond the end of the bitmap buffer (at least 8 times too far), and furthermore you are ignoring the value of the bitmap pitch.

If you require help understanding how to process 1-bit-per-pixel bitmaps, I can possibly help you off-list, but this question is outside the scope of FreeType.

Scott Long   <address@hidden>
Software Engineer
SwiftView, Inc.
(971) 223-2639

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