Mail Archives: djgpp/1997/03/03/00:15:17
From: | umbagnal AT cc DOT umanitoba DOT ca (Kevin Bagnall)
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Newsgroups: | comp.os.msdos.djgpp
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Subject: | Allegro.h to GNU Pascal unit conversion?
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Date: | 3 Mar 1997 03:12:56 GMT
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Organization: | The University of Manitoba
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Lines: | 43
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Message-ID: | <5fdfjo$bkb$1@canopus.cc.umanitoba.ca>
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NNTP-Posting-Host: | dyn3-063.cc.umanitoba.ca
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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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I know this is more of a Pascal question, but I figured "GNU Pascal for DOS"
programmers would also be DJGPP programmers.
Anyways here is my problem. I am forced to use pascal for a final project in a
course I am taking and would like to use the Allegro library. I am going to
use GNU Pascal for DJGPP so I can access lots of memory(which I need for
lookahead-moves in a game of Connect-4) and it's an optimized 32-bit compiler.
I've benchmarked Turbo Pascal 7.0 and GNU Pascal and found the GNU version is
6 times faster! First of all, has anyone already converted the allegro.h
header file to a GNU Pascal unit? If not, then I'll have to convert parts of
it myself, specificaly some of the screen,bitmap,graphics, and sprite
declarations. I know how to convert simple C declarations to pascal such as
this:
-C version-
struct POINT
{
int x;
int y;
}
-Pascal version-
POINT = record
x:integer;
y:integer;
end;
But in allegro.h there is the GFX_VTABLE declaration which has the following:
int (*getpixel)(struct BITMAP *bmp, int x, int y);
void (*putpixel)(struct BITMAP *bmp, int x, int y, int color);
.
.
etc.
Is the second a pointer to a function? How would I change these to GNU pascal?
Later I might convert the entire allegro.h file. I'm probably not the right
person to do this since I've only written two small C programs in my life and
I'm new to both DJGPP and GNU Pascal(but not pascal).
-Kevin Bagnall
- Raw text -