From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-pa0-x234.google.com ([2607:f8b0:400e:c03::234]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zs9Gy-00005v-Ob for barebox@lists.infradead.org; Fri, 30 Oct 2015 12:59:13 +0000 Received: by padhy1 with SMTP id hy1so68286969pad.0 for ; Fri, 30 Oct 2015 05:58:51 -0700 (PDT) From: Du Huanpeng Date: Fri, 30 Oct 2015 20:58:25 +0800 Message-Id: <1446209905-26922-1-git-send-email-u74147@gmail.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH] lib: font: fbconsole: add custom font support To: barebox@lists.infradead.org Cc: Du Huanpeng Signed-off-by: Du Huanpeng --- drivers/video/fbconsole.c | 39 +++++++++++++++++++-------------------- include/linux/font.h | 11 ++++++++++- lib/fonts/Kconfig | 5 +++++ lib/fonts/Makefile | 2 ++ lib/fonts/font_7x14.c | 1 + lib/fonts/font_8x16.c | 1 + lib/fonts/font_custom_16x.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ lib/fonts/font_mini_4x6.c | 1 + lib/fonts/fonts.c | 38 +++++++++++++++++++++++++++++++++++--- 9 files changed, 118 insertions(+), 24 deletions(-) create mode 100644 lib/fonts/font_custom_16x.c diff --git a/drivers/video/fbconsole.c b/drivers/video/fbconsole.c index b10503e..dad45c3 100644 --- a/drivers/video/fbconsole.c +++ b/drivers/video/fbconsole.c @@ -22,8 +22,8 @@ struct fbc_priv { struct param_d *par_font; int par_font_val; - int font_width, font_height; - const u8 *fontdata; + struct font_desc font; + unsigned int cols, rows; unsigned int x, y; /* cursor position */ @@ -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->fontdata[c * priv->font_height]; + i = find_font_index(&priv->font, c); + inbuf = priv->font.data + i; line_length = priv->fb->line_length; @@ -113,13 +114,13 @@ static void drawchar(struct fbc_priv *priv, int x, int y, char c) rgb = &colors[bgcolor]; bgcolor = gu_rgb_to_pixel(priv->fb, rgb->r, rgb->g, rgb->b, 0xff); - for (i = 0; i < priv->font_height; i++) { + for (i = 0; i < priv->font.height; i++) { uint8_t t = inbuf[i]; int j; - adr = buf + line_length * (y * priv->font_height + i) + x * priv->font_width * bpp; + adr = buf + line_length * (y * priv->font.height + i) + x * priv->font.width * bpp; - for (j = 0; j < priv->font_width; j++) { + for (j = 0; j < priv->font.width; j++) { if (t & 0x80) gu_set_pixel(priv->fb, adr, color); else @@ -137,10 +138,10 @@ static void video_invertchar(struct fbc_priv *priv, int x, int y) buf = gui_screen_render_buffer(priv->sc); - gu_invert_area(priv->fb, buf, x * priv->font_width, y * priv->font_height, - priv->font_width, priv->font_height); - gu_screen_blit_area(priv->sc, x * priv->font_width, y * priv->font_height, - priv->font_width, priv->font_height); + gu_invert_area(priv->fb, buf, x * priv->font.width, y * priv->font.height, + priv->font.width, priv->font.height); + gu_screen_blit_area(priv->sc, x * priv->font.width, y * priv->font.height, + priv->font.width, priv->font.height); } static void printchar(struct fbc_priv *priv, int c) @@ -174,9 +175,9 @@ static void printchar(struct fbc_priv *priv, int c) default: drawchar(priv, priv->x, priv->y, c); - gu_screen_blit_area(priv->sc, priv->x * priv->font_width, - priv->y * priv->font_height, - priv->font_width, priv->font_height); + gu_screen_blit_area(priv->sc, priv->x * priv->font.width, + priv->y * priv->font.height, + priv->font.width, priv->font.height); priv->x++; if (priv->x > priv->cols) { @@ -188,7 +189,7 @@ static void printchar(struct fbc_priv *priv, int c) if (priv->y > priv->rows) { void *buf; u32 line_length = priv->fb->line_length; - int line_height = line_length * priv->font_height; + int line_height = line_length * priv->font.height; buf = gui_screen_render_buffer(priv->sc); @@ -355,12 +356,10 @@ static int setup_font(struct fbc_priv *priv) return -ENOENT; } - priv->font_width = font->width; - priv->font_height = font->height; - priv->fontdata = font->data; + priv->font = *font; - priv->rows = fb->yres / priv->font_height - 1; - priv->cols = fb->xres / priv->font_width - 1; + priv->rows = fb->yres / priv->font.height - 1; + priv->cols = fb->xres / priv->font.width - 1; return 0; } diff --git a/include/linux/font.h b/include/linux/font.h index 62b1879..117484e 100644 --- a/include/linux/font.h +++ b/include/linux/font.h @@ -12,20 +12,29 @@ #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; }; extern const struct font_desc font_vga_8x16, font_7x14, - font_mini_4x6; + font_mini_4x6, + font_custom_16x; /* Max. length for the name of a predefined font */ #define MAX_FONT_NAME 32 +extern int find_font_index(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..7de5c76 100644 --- a/lib/fonts/Makefile +++ b/lib/fonts/Makefile @@ -5,7 +5,9 @@ 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 += $(font-objs-y) obj-$(CONFIG_FONTS) += font.o + diff --git a/lib/fonts/font_7x14.c b/lib/fonts/font_7x14.c index fe99871..60cb57e 100644 --- a/lib/fonts/font_7x14.c +++ b/lib/fonts/font_7x14.c @@ -4113,4 +4113,5 @@ const struct font_desc font_7x14 = { .width = 7, .height = 14, .data = fontdata_7x14, + .index = NULL, }; diff --git a/lib/fonts/font_8x16.c b/lib/fonts/font_8x16.c index 4717ead..0ba2921 100644 --- a/lib/fonts/font_8x16.c +++ b/lib/fonts/font_8x16.c @@ -4626,5 +4626,6 @@ const struct font_desc font_vga_8x16 = { .width = 8, .height = 16, .data = fontdata_8x16, + .index = NULL, }; EXPORT_SYMBOL(font_vga_8x16); diff --git a/lib/fonts/font_custom_16x.c b/lib/fonts/font_custom_16x.c new file mode 100644 index 0000000..b83387d --- /dev/null +++ b/lib/fonts/font_custom_16x.c @@ -0,0 +1,44 @@ +/* + * by Du Huanpeng + */ + +#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 }, +}; + +const 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), + +}; + diff --git a/lib/fonts/font_mini_4x6.c b/lib/fonts/font_mini_4x6.c index 3ecb4fb..733d20a 100644 --- a/lib/fonts/font_mini_4x6.c +++ b/lib/fonts/font_mini_4x6.c @@ -2152,4 +2152,5 @@ const struct font_desc font_mini_4x6 = { .width = 4, .height = 6, .data = fontdata_mini_4x6, + .index = NULL, }; diff --git a/lib/fonts/fonts.c b/lib/fonts/fonts.c index 5a9d3f1..0b2e2ee 100644 --- a/lib/fonts/fonts.c +++ b/lib/fonts/fonts.c @@ -7,6 +7,10 @@ * 2001 - Documented with DocBook * - Brad Douglas * + * 2015 - Add custom font supports + * - Du Huanpeng + * + * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive * for more details. @@ -23,15 +27,19 @@ static const struct font_desc *fonts[] = { #ifdef CONFIG_FONT_8x16 #undef NO_FONTS - &font_vga_8x16, + &font_vga_8x16, #endif #ifdef CONFIG_FONT_7x14 #undef NO_FONTS - &font_7x14, + &font_7x14, #endif #ifdef CONFIG_FONT_MINI_4x6 #undef NO_FONTS - &font_mini_4x6, + &font_mini_4x6, +#endif +#ifdef CONFIG_FONT_CUSTOM_16X +#undef NO_FONTS + &font_custom_16x, #endif }; @@ -51,6 +59,30 @@ const struct font_desc *find_font_enum(int n) return fonts[n]; } +int find_font_index(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; +} + struct param_d *add_param_font(struct device_d *dev, int (*set)(struct param_d *p, void *priv), int (*get)(struct param_d *p, void *priv), -- 1.9.1 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox