[U-Boot] [PATCH 09/11] video: Fix cfb_console for 4-bit wide font

Marek Vasut
2013-07-30T21:37:59Z

The cfb_console can't handle 4-bit wide font properly, since with
4-bit wide font, all 8 bits are drawn. Unbreak the video_drawchars()
function to correctly render 4-bits only on such fonts.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
---
drivers/video/cfb_console.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)

diff --git a/drivers/video/cfb_console.c b/drivers/video/cfb_console.c
index edac91c..9110eb5 100644
--- a/drivers/video/cfb_console.c
+++ b/drivers/video/cfb_console.c
@@ -467,6 +467,10 @@ static void video_drawchars(int xx, int yy, unsigned char *s, int count)
((u32 *) dest)[0] =
(video_font_draw_table8[bits >> 4] &
eorx) ^ bgx;
+
+ if (VIDEO_FONT_WIDTH == 4)
+ continue;
+
((u32 *) dest)[1] =
(video_font_draw_table8[bits & 15] &
eorx) ^ bgx;
@@ -492,6 +496,10 @@ static void video_drawchars(int xx, int yy, unsigned char *s, int count)
SHORTSWAP32((video_font_draw_table15
[bits >> 4 & 3] & eorx) ^
bgx);
+
+ if (VIDEO_FONT_WIDTH == 4)
+ continue;
+
((u32 *) dest)[2] =
SHORTSWAP32((video_font_draw_table15
[bits >> 2 & 3] & eorx) ^
@@ -522,6 +530,10 @@ static void video_drawchars(int xx, int yy, unsigned char *s, int count)
SHORTSWAP32((video_font_draw_table16
[bits >> 4 & 3] & eorx) ^
bgx);
+
+ if (VIDEO_FONT_WIDTH == 4)
+ continue;
+
((u32 *) dest)[2] =
SHORTSWAP32((video_font_draw_table16
[bits >> 2 & 3] & eorx) ^
@@ -556,6 +568,11 @@ static void video_drawchars(int xx, int yy, unsigned char *s, int count)
((u32 *) dest)[3] =
SWAP32((video_font_draw_table32
[bits >> 4][3] & eorx) ^ bgx);
+
+
+ if (VIDEO_FONT_WIDTH == 4)
+ continue;
+
((u32 *) dest)[4] =
SWAP32((video_font_draw_table32
[bits & 15][0] & eorx) ^ bgx);
@@ -591,6 +608,10 @@ static void video_drawchars(int xx, int yy, unsigned char *s, int count)
((u32 *) dest)[2] =
(video_font_draw_table24[bits >> 4][2]
& eorx) ^ bgx;
+
+ if (VIDEO_FONT_WIDTH == 4)
+ continue;
+
((u32 *) dest)[3] =
(video_font_draw_table24[bits & 15][0]
& eorx) ^ bgx;
--
1.7.10.4