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video: Update truetype console to support copy buffer 

Update the implementation to keep a track of what it changes in the frame
buffer and then tell the copy buffer about it. Use the special
vidconsole_memmove() helper so that memmove() operations are also
reflected in the copy buffer.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2020-07-02 21:12:25 -06:00 committed by Bin Meng
parent 68f3fc767c
commit 3ad740ac66
1 changed files with 31 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
drivers/video/console_truetype.c
View File

@ -127,9 +127,9 @@ static int console_truetype_set_row(struct udevice *dev, uint row, int clr)
{
struct video_priv *vid_priv = dev_get_uclass_priv(dev->parent);
struct console_tt_priv *priv = dev_get_priv(dev);
void *line;
void *end, *line;
int pixels = priv->font_size * vid_priv->line_length;
int i;
int i, ret;
line = vid_priv->fb + row * priv->font_size * vid_priv->line_length;
switch (vid_priv->bpix) {
@ -139,6 +139,7 @@ static int console_truetype_set_row(struct udevice *dev, uint row, int clr)
for (i = 0; i < pixels; i++)
*dst++ = clr;
end = dst;
break;
}
#endif
@ -148,6 +149,7 @@ static int console_truetype_set_row(struct udevice *dev, uint row, int clr)
for (i = 0; i < pixels; i++)
*dst++ = clr;
end = dst;
break;
}
#endif
@ -157,12 +159,16 @@ static int console_truetype_set_row(struct udevice *dev, uint row, int clr)
for (i = 0; i < pixels; i++)
*dst++ = clr;
end = dst;
break;
}
#endif
default:
return -ENOSYS;
}
ret = vidconsole_sync_copy(dev, line, end);
if (ret)
return ret;
return 0;
}
@ -174,11 +180,14 @@ static int console_truetype_move_rows(struct udevice *dev, uint rowdst,
struct console_tt_priv *priv = dev_get_priv(dev);
void *dst;
void *src;
int i, diff;
int i, diff, ret;
dst = vid_priv->fb + rowdst * priv->font_size * vid_priv->line_length;
src = vid_priv->fb + rowsrc * priv->font_size * vid_priv->line_length;
memmove(dst, src, priv->font_size * vid_priv->line_length * count);
ret = vidconsole_memmove(dev, dst, src, priv->font_size *
vid_priv->line_length * count);
if (ret)
return ret;
/* Scroll up our position history */
diff = (rowsrc - rowdst) * priv->font_size;
@ -203,8 +212,8 @@ static int console_truetype_putc_xy(struct udevice *dev, uint x, uint y,
struct pos_info *pos;
u8 *bits, *data;
int advance;
void *line;
int row;
void *start, *end, *line;
int row, ret;
/* First get some basic metrics about this character */
stbtt_GetCodepointHMetrics(font, ch, &advance, &lsb);
@ -253,11 +262,12 @@ static int console_truetype_putc_xy(struct udevice *dev, uint x, uint y,
/* Figure out where to write the character in the frame buffer */
bits = data;
line = vid_priv->fb + y * vid_priv->line_length +
start = vid_priv->fb + y * vid_priv->line_length +
VID_TO_PIXEL(x) * VNBYTES(vid_priv->bpix);
linenum = priv->baseline + yoff;
if (linenum > 0)
line += linenum * vid_priv->line_length;
start += linenum * vid_priv->line_length;
line = start;
/*
* Write a row at a time, converting the 8bpp image into the colour
@ -286,6 +296,7 @@ static int console_truetype_putc_xy(struct udevice *dev, uint x, uint y,
*dst++ &= out;
bits++;
}
end = dst;
break;
}
#endif
@ -307,6 +318,7 @@ static int console_truetype_putc_xy(struct udevice *dev, uint x, uint y,
*dst++ &= out;
bits++;
}
end = dst;
break;
}
#endif
@ -317,6 +329,9 @@ static int console_truetype_putc_xy(struct udevice *dev, uint x, uint y,
line += vid_priv->line_length;
}
ret = vidconsole_sync_copy(dev, start, line);
if (ret)
return ret;
free(data);
return width_frac;
@ -340,12 +355,13 @@ static int console_truetype_erase(struct udevice *dev, int xstart, int ystart,
int xend, int yend, int clr)
{
struct video_priv *vid_priv = dev_get_uclass_priv(dev->parent);
void *line;
void *start, *line;
int pixels = xend - xstart;
int row, i;
int row, i, ret;
line = vid_priv->fb + ystart * vid_priv->line_length;
line += xstart * VNBYTES(vid_priv->bpix);
start = vid_priv->fb + ystart * vid_priv->line_length;
start += xstart * VNBYTES(vid_priv->bpix);
line = start;
for (row = ystart; row < yend; row++) {
switch (vid_priv->bpix) {
#ifdef CONFIG_VIDEO_BPP8
@ -380,6 +396,9 @@ static int console_truetype_erase(struct udevice *dev, int xstart, int ystart,
}
line += vid_priv->line_length;
}
ret = vidconsole_sync_copy(dev, start, line);
if (ret)
return ret;
return 0;
}