nanogui: Pixmaps
Subject:
RE: Pixmaps
From:
Greg Haerr ####@####.####
Date:
20 May 1999 20:03:19 -0000
Message-Id: <01BEA2C9.452FCF80.greg@censoft.com>
> Suppose you have a 1-bit depth bitmap. With a byte-granular quantity
> (i.e., line_len, etc.), how can you specify a non-byte-aligned
> subbitmap? You can't. So if you want to support subbitmaps you have
> to use pixel offsets, not byte offsets, which isn't as simple.
>
Ah yes, I figured you were going to comment on my quick comment.
This can be solved by adding
COORD x,y;
which are the viewpoint's initial starting positions, relative to the bitmap
origin, in pixel units. This is used to create the starting mask and/or pixel
offset, much like the original bitmap will have to if required to blt to a screen
pixel address...
