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cfb_console: Add console_clear_line function

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console_clear_line() clears part of specified line or the full line.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
This commit is contained in:
Pali Rohár 2012-04-28 07:26:44 +00:00 committed by Anatolij Gustschin
parent 04bbe69990
commit 90f60a81da
1 changed files with 36 additions and 13 deletions
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49
drivers/video/cfb_console.c
View file

@ -683,6 +683,41 @@ static void memcpyl(int *d, int *s, int c)
}
#endif
static void console_clear_line(int line, int begin, int end)
{
#ifdef VIDEO_HW_RECTFILL
video_hw_rectfill(VIDEO_PIXEL_SIZE, /* bytes per pixel */
VIDEO_FONT_WIDTH * begin, /* dest pos x */
video_logo_height +
VIDEO_FONT_HEIGHT * line, /* dest pos y */
VIDEO_FONT_WIDTH * (end - begin + 1), /* fr. width */
VIDEO_FONT_HEIGHT, /* frame height */
bgx /* fill color */
);
#else
if (begin == 0 && (end + 1) == CONSOLE_COLS) {
memsetl(CONSOLE_ROW_FIRST +
CONSOLE_ROW_SIZE * line, /* offset of row */
CONSOLE_ROW_SIZE >> 2, /* length of row */
bgx /* fill color */
);
} else {
void *offset;
int i, size;
offset = CONSOLE_ROW_FIRST +
CONSOLE_ROW_SIZE * line + /* offset of row */
VIDEO_FONT_WIDTH *
VIDEO_PIXEL_SIZE * begin; /* offset of col */
size = VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE * (end - begin + 1);
size >>= 2; /* length to end for memsetl() */
/* fill at col offset of i'th line using bgx as fill color */
for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
memsetl(offset + i * VIDEO_LINE_LEN, size, bgx);
}
#endif
}
static void console_scrollup(void)
{
/* copy up rows ignoring the first one */
@ -703,20 +738,8 @@ static void console_scrollup(void)
memcpyl(CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND,
CONSOLE_SCROLL_SIZE >> 2);
#endif
/* clear the last one */
#ifdef VIDEO_HW_RECTFILL
video_hw_rectfill(VIDEO_PIXEL_SIZE, /* bytes per pixel */
0, /* dest pos x */
VIDEO_VISIBLE_ROWS
- VIDEO_FONT_HEIGHT, /* dest pos y */
VIDEO_VISIBLE_COLS, /* frame width */
VIDEO_FONT_HEIGHT, /* frame height */
CONSOLE_BG_COL /* fill color */
);
#else
memsetl(CONSOLE_ROW_LAST, CONSOLE_ROW_SIZE >> 2, CONSOLE_BG_COL);
#endif
console_clear_line(CONSOLE_ROWS - 1, 0, CONSOLE_COLS - 1);
}
static void console_back(void)