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  → /uspace/ @ 1558

  → /uspace/ @ 1559

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Ignore whitespace Rev 1558 → Rev 1559

/uspace/trunk/fb/fb.c
204,17 → 204,33
putpixel(vp, x, y, viewports[vp].style.bg_color);
}
static void draw_rectangle(int vp, unsigned int sx, unsigned int sy,
unsigned int width, unsigned int height,
int color)
{
unsigned int x, y;
/* Clear first line */
for (x = 0; x < width; x++)
putpixel(vp, sx + x, sy, color);
/* Recompute to screen coords */
sx += viewports[vp].x;
sy += viewports[vp].y;
/* Copy the rest */
for (y = sy+1;y < sy+height; y++)
memcpy(&screen.fbaddress[POINTPOS(sx,y)],
&screen.fbaddress[POINTPOS(sx,sy)],
screen.pixelbytes * width);
}
/** Fill viewport with background color */
static void clear_port(int vp)
{
unsigned int y;
viewport_t *vport = &viewports[vp];
clear_line(vp, 0);
for (y = viewports[vp].y+1; y < viewports[vp].y+viewports[vp].height; y++) {
memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
screen.pixelbytes * viewports[vp].width);
}
draw_rectangle(vp, 0, 0, vport->width, vport->height, vport->style.bg_color);
}
/** Scroll port up/down
227,33 → 243,22
int y;
int startline;
int endline;
viewport_t *vport = &viewports[vp];
if (rows > 0) {
for (y=viewports[vp].y; y < viewports[vp].y+viewports[vp].height - rows*FONT_SCANLINES; y++)
memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
&screen.fbaddress[POINTPOS(viewports[vp].x,y + rows*FONT_SCANLINES)],
screen.pixelbytes * viewports[vp].width);
/* Clear last row */
startline = viewports[vp].y+FONT_SCANLINES*(viewports[vp].rows-1);
endline = viewports[vp].y + viewports[vp].height;
clear_line(vp, startline);
for (y=startline+1;y < endline; y++)
memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
&screen.fbaddress[POINTPOS(viewports[vp].x,startline)],
screen.pixelbytes * viewports[vp].width);
for (y=vport->y; y < vport->y+vport->height - rows*FONT_SCANLINES; y++)
memcpy(&screen.fbaddress[POINTPOS(vport->x,y)],
&screen.fbaddress[POINTPOS(vport->x,y + rows*FONT_SCANLINES)],
screen.pixelbytes * vport->width);
draw_rectangle(vp, 0, FONT_SCANLINES*(vport->rows - 1),
vport->width, FONT_SCANLINES, vport->style.bg_color);
} else if (rows < 0) {
rows = -rows;
for (y=viewports[vp].y + viewports[vp].height-1; y >= viewports[vp].y + rows*FONT_SCANLINES; y--)
memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
&screen.fbaddress[POINTPOS(viewports[vp].x,y - rows*FONT_SCANLINES)],
screen.pixelbytes * viewports[vp].width);
/* Clear first row */
clear_line(0, viewports[vp].style.bg_color);
for (y=1;y < rows*FONT_SCANLINES; y++)
memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y+y)],
&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
screen.pixelbytes * viewports[vp].width);
for (y=vport->y + vport->height-1; y >= vport->y + rows*FONT_SCANLINES; y--)
memcpy(&screen.fbaddress[POINTPOS(vport->x,y)],
&screen.fbaddress[POINTPOS(vport->x,y - rows*FONT_SCANLINES)],
screen.pixelbytes * vport->width);
draw_rectangle(vp, 0, 0, vport->width, FONT_SCANLINES, vport->style.bg_color);
}
}