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 @@ { 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 @@ 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 +#include +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_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-$(CONFIG_FONT_8x16) += font_8x16.o font-objs-$(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 + */ + +#include +#include +#include +#include + +/* 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 @@ 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) {