From: Alper Akçan (distch@hotmail.com)
Date: Sat 22 Feb 2003 - 13:36:31 IST
Hi,
char buf[w * h * BYTESPERPIXEL];
gl_getbox(x, y, w, h, buf);
When I get a buffer like that; I can use
gl_putboxpart(x, y, w, h, 1, 1, buf, 5, 5);
to draw one pixel at (5,5) to (x,y) position. this is OK.
But what if I use vga_drawscansegment() ?
I have tried this;
int i = ((5 * w) + 5) * BYTESPERPIXEL; // to get (5, 5) in buffer.
vga_drawscansegment(buf, x, y, BYTESPERPIXEL); // draw (5,5) to (x,y).
is this ok?
I have also tried this;
int i = 0;
int bufsize = w * h * BYTESPERPIXEL
gl_getbox(x, y, w, h, BYTESPERPIXEL);
while (i < bufsize) {
y = i / w;
x = i % w;
vga_drawscansegment(buf, x, y, BYTESPERPIXEL);
i += BYTESPERPIXEL;
}
this puts a box with w , h at correct position. but let sey our box must be;
***** (5 x 5) at position (x, y)
*****
*****
*****
*****
that draws like this;
*-*-* (5 x 5) at position (x, y), * are OK. - not drawn.
*-*-*
*-*-*
*-*-*
*-*-*
what is going wrong?
Alper.
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