Signed-off-by: Du Huanpeng <[email protected]>
---
drivers/video/fbconsole.c | 5 +++--
include/linux/font.h | 8 ++++++++
lib/fonts/Kconfig | 5 +++++
lib/fonts/Makefile | 1 +
lib/fonts/font_custom_16x.c | 50 +++++++++++++++++++++++++++++++++++++++++++++
lib/fonts/fonts.c | 23 +++++++++++++++++++++
6 files changed, 90 insertions(+), 2 deletions(-)
create mode 100644 lib/fonts/font_custom_16x.c
diff --git a/drivers/video/fbconsole.c b/drivers/video/fbconsole.c
index 3842f63..693c21f 100644
--- a/drivers/video/fbconsole.c
+++ b/drivers/video/fbconsole.c
@@ -84,7 +84,7 @@ static struct rgb colors[] = {
{ 255, 255, 255 },
};
-static void drawchar(struct fbc_priv *priv, int x, int y, char c)
+static void drawchar(struct fbc_priv *priv, int x, int y, int c)
{
void *buf;
int bpp = priv->fb->bits_per_pixel >> 3;
@@ -97,7 +97,8 @@ static void drawchar(struct fbc_priv *priv, int x, int y,
char c)
buf = gui_screen_render_buffer(priv->sc);
- inbuf = priv->font->data + c * priv->font->height;
+ i = find_font_index(priv->font, c);
+ inbuf = priv->font->data + i;
line_length = priv->fb->line_length;
diff --git a/include/linux/font.h b/include/linux/font.h
index f8b0e94..feeab97 100644
--- a/include/linux/font.h
+++ b/include/linux/font.h
@@ -12,17 +12,25 @@
#define _VIDEO_FONT_H
#include <param.h>
+#include <wchar.h>
+struct font_index {
+ wchar_t wc; /* code of the char. */
+ short index; /* offset of the char in the bitmap. */
+};
struct font_desc {
const char *name;
int width, height;
+ struct font_index *index;
const void *data;
+ int num_chars;
struct list_head list;
};
/* Max. length for the name of a predefined font */
#define MAX_FONT_NAME 32
+extern int find_font_index(const struct font_desc *font, int ch);
extern const struct font_desc *find_font_enum(int n);
extern struct param_d *add_param_font(struct device_d *dev,
int (*set)(struct param_d *p, void *priv),
diff --git a/lib/fonts/Kconfig b/lib/fonts/Kconfig
index 715d5e5..d23b283 100644
--- a/lib/fonts/Kconfig
+++ b/lib/fonts/Kconfig
@@ -20,6 +20,11 @@ config FONT_7x14
config FONT_MINI_4x6
bool "Mini 4x6 font"
+config FONT_CUSTOM_16X
+ bool "Custom 16x16 font"
+ help
+ This font is useful for Chinese and other non ascii chars.
+
config FONT_AUTOSELECT
def_bool y
depends on !FONT_MINI_4x6
diff --git a/lib/fonts/Makefile b/lib/fonts/Makefile
index b7d4765..98245b3 100644
--- a/lib/fonts/Makefile
+++ b/lib/fonts/Makefile
@@ -5,6 +5,7 @@ font-objs := fonts.o
font-objs-$(CONFIG_FONT_8x16) += font_8x16.o
font-objs-$(CONFIG_FONT_7x14) += font_7x14.o
font-objs-$(CONFIG_FONT_MINI_4x6) += font_mini_4x6.o
+font-objs-$(CONFIG_FONT_CUSTOM_16X)+= font_custom_16x.o
font-objs += $(font-objs-y)
diff --git a/lib/fonts/font_custom_16x.c b/lib/fonts/font_custom_16x.c
new file mode 100644
index 0000000..2666e1f
--- /dev/null
+++ b/lib/fonts/font_custom_16x.c
@@ -0,0 +1,50 @@
+/*
+ * by Du Huanpeng <[email protected]>
+ */
+
+#include <init.h>
+#include <module.h>
+#include <linux/font.h>
+#include <common.h>
+
+/* place real font data here or set fontdata_custom_16x points to
+ * the address of font data and also setup the index.
+ */
+
+static const unsigned char fontdata_custom_16x[] = {
+ 0xFF, 0xFF, /*OOOOOOOOOOOOOOOO*/
+ 0x80, 0x01, /*O______________O*/
+ 0x80, 0x01, /*O______________O*/
+ 0x80, 0x01, /*O______________O*/
+ 0x80, 0x01, /*O______________O*/
+ 0x80, 0x01, /*O______________O*/
+ 0x80, 0x01, /*O______________O*/
+ 0x80, 0x01, /*O______________O*/
+ 0x80, 0x01, /*O______________O*/
+ 0x80, 0x01, /*O______________O*/
+ 0x80, 0x01, /*O______________O*/
+ 0x80, 0x01, /*O______________O*/
+ 0x80, 0x01, /*O______________O*/
+ 0x80, 0x01, /*O______________O*/
+ 0x80, 0x01, /*O______________O*/
+ 0xFF, 0xFF, /*OOOOOOOOOOOOOOOO*/
+};
+
+static struct font_index fontdata_custom_16x_index[] = {
+ { 0x0000, 0x0000 },
+};
+
+static struct font_desc font_custom_16x = {
+ .name = "CUSTOM-16x",
+ .width = 16,
+ .height = 16,
+ .data = fontdata_custom_16x,
+ .index = fontdata_custom_16x_index,
+ .num_chars = ARRAY_SIZE(fontdata_custom_16x_index),
+};
+
+static int font_custom_16x_register(void)
+{
+ return font_register(&font_custom_16x);
+}
+postcore_initcall(font_custom_16x_register);
diff --git a/lib/fonts/fonts.c b/lib/fonts/fonts.c
index d59d688..926f880 100644
--- a/lib/fonts/fonts.c
+++ b/lib/fonts/fonts.c
@@ -31,6 +31,29 @@ int font_register(struct font_desc *font)
return 0;
}
+int find_font_index(const struct font_desc *font, int ch)
+{
+ int index;
+ if (font->index == NULL) {
+ index = font->width + 7;
+ index /= 8;
+ index *= font->height;
+ index *= ch;
+ } else {
+ /*
+ * FIXME: use binary search instead!
+ */
+ index = font->num_chars - 1;
+
+ while (index && font->index[index].wc != ch)
+ index--;
+
+ /* return 0 if not found. */
+ index = font->index->index;
+ }
+
+ return index;
+}
const struct font_desc *find_font_enum(int n)
{
--
1.9.1
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