Mail Archives: djgpp/1998/02/14/16:17:59
From: | g DOT reed AT clear DOT net DOT nz (Glenn Reed)
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Newsgroups: | comp.os.msdos.djgpp
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Subject: | Proposal: Gif / Jpeg / or whatever decoder with callback
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Date: | Sat, 14 Feb 1998 22:34:26 GMT
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Organization: | CLEAR Net, http://www.clear.net.nz/
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Lines: | 27
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Message-ID: | <34e6164f.747913@news.clear.net.nz>
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NNTP-Posting-Host: | d1-u4.acld.clear.net.nz
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Mime-Version: | 1.0
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To: | djgpp AT delorie DOT com
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DJ-Gateway: | from newsgroup comp.os.msdos.djgpp
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Hi,
Here is a proposal I have. Just posting it here to make sure it
hasn't already been done. I have been thinking of writing a program
(actually a C procedure) which will read in a bitmap file and using an
appropriate callback function display it on the screen. In this way
it can be written to be graphics card independent.
I've thought of something similar to the following structure:
LoadGraphicsFile (char *filename);
DisplayGraphicsFile (char *filename, int x, int y,
void (*PutPixel) (int x, int y, int PaletteEntry) );
Where PutPixel is defined by the user. These two functions should be
desigined to be ANSI compatible. Comments?
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