/*
* Basic graphics routines.
*/
void gfx_hline(int x1, int x2, int y, int color, int flags)
{
int x;
if (flags & GFX_XOR_PIXEL)
{
for (x = x1; x < x2; x++)
{
vga_setcolor(color ^ vga_getpixel(x, y));
vga_drawpixel(x, y);
}
}
else
{
vga_setcolor(color);
for (x = x1; x < x2; x++)
vga_drawpixel(x, y);
}
}
void gfx_vline(int y1, int y2, int x, int color, int flags)
{
int y;
if (flags & GFX_XOR_PIXEL)
{
for (y = y1; y < y2; y++)
{
vga_setcolor(color ^ vga_getpixel(x, y));
vga_drawpixel(x, y);
}
}
else
{
vga_setcolor(color);
for (y = y1; y < y2; y++)
vga_drawpixel(x, y);
}
}
static PIXELVAL
SVGA_readpixel(PSD psd,COORD x, COORD y)
{
return vga_getpixel(x, y);
}
