diff --git a/ChangeLog.kernel-font b/ChangeLog.kernel-font index c21696db9..9933c21a5 100644 --- a/ChangeLog.kernel-font +++ b/ChangeLog.kernel-font @@ -1,3 +1,23 @@ +2010-01-10 Carles Pina i Estany + + * font/font.c: Include `ascii.h'. + (ASCII_BITMAP_SIZE): New macro. + (ascii_font_glyph): Define. + (ascii_glyph_lookup): New function. + (grub_font_get_string_width): Change comment. If glyph not found, use + ascii_glyph_lookup. + (grub_font_get_glyph_with_fallback): If glyph not available returns + ascii_glyph_lookup. + * util/grub-mkfont.c (file_formats): New enum. + (options): Add `ascii-bitmaps' new option. + (usage): Add `asii-bitmaps' new option. + (write_font_ascii_bitmap): New function. + (write_font): Rename to ... + (write_font_p2): ... this. Remove print_glyphs call. + (main): Use file_format. Implement code for ranges if ascii-bitmaps is + used. Call print_glyphs. + * Makefile.in (pkgdata_DATA): Add `font/ascii.h'. + 2010-01-10 Robert Millan * conf/common.rmk (bin_UTILITIES): Add `grub-bin2h'. diff --git a/Makefile.in b/Makefile.in index 79045ee64..f30264b00 100644 --- a/Makefile.in +++ b/Makefile.in @@ -234,7 +234,7 @@ else ifeq ($(enable_grub_mkfont),yes) -pkgdata_DATA += unicode.pf2 ascii.pf2 +pkgdata_DATA += unicode.pf2 ascii.pf2 font/ascii.h # Arrows and lines are needed to draw the menu, so we always include them UNICODE_ARROWS=0x2190-0x2193 @@ -245,6 +245,12 @@ unicode.pf2: $(FONT_SOURCE) grub-mkfont ascii.pf2: $(FONT_SOURCE) grub-mkfont $(builddir)/grub-mkfont -o $@ $(FONT_SOURCE) -r 0x0-0x7f,$(UNICODE_ARROWS),$(UNICODE_LINES) + +font/ascii.bitmaps: $(FONT_SOURCE) grub-mkfont + $(builddir)/grub-mkfont --ascii-bitmaps -o $@ $(FONT_SOURCE) + +font/ascii.h: font/ascii.bitmaps grub-bin2h + $(builddir)/grub-bin2h ascii_bitmaps 2048 < font/ascii.bitmaps > font/ascii.h endif endif diff --git a/font/font.c b/font/font.c index 44827a9a1..9819958e3 100644 --- a/font/font.c +++ b/font/font.c @@ -17,6 +17,8 @@ * along with GRUB. If not, see . */ +#define GENERATE_ASCII + #include #include #include @@ -27,6 +29,10 @@ #include #include +#ifdef GENERATE_ASCII +#include "ascii.h" +#endif + #ifndef FONT_DEBUG #define FONT_DEBUG 0 #endif @@ -43,6 +49,7 @@ struct char_index_entry #define FONT_WEIGHT_NORMAL 100 #define FONT_WEIGHT_BOLD 200 +#define ASCII_BITMAP_SIZE 16 struct grub_font { @@ -129,6 +136,48 @@ static struct grub_font null_font; /* Flag to ensure module is initialized only once. */ static grub_uint8_t font_loader_initialized; +#ifdef GENERATE_ASCII +static struct grub_font_glyph *ascii_font_glyph[0x80]; +#endif + +static struct grub_font_glyph * +ascii_glyph_lookup (grub_uint32_t code) +{ +#ifdef GENERATE_ASCII + static int ascii_failback_initialized = 0; + + if (code >= 0x80) + return unknown_glyph; + + if (ascii_failback_initialized == 0) + { + int current; + for (current = 0; current < 0x80; current++) + { + ascii_font_glyph[current] = grub_malloc(sizeof(struct grub_font_glyph) + + ASCII_BITMAP_SIZE); + + ascii_font_glyph[current]->width = 8; + ascii_font_glyph[current]->height = 16; + ascii_font_glyph[current]->offset_x = 0; + ascii_font_glyph[current]->offset_y = -2; + ascii_font_glyph[current]->device_width = 8; + + grub_memcpy (ascii_font_glyph[current]->bitmap, + &ascii_bitmaps[(0x7f - current) * ASCII_BITMAP_SIZE], + ASCII_BITMAP_SIZE); + } + + ascii_failback_initialized = 1; + } + + return ascii_font_glyph[code]; +#else + (void) code; + return unknown_glyph; +#endif +} + void grub_font_loader_init (void) { @@ -865,15 +914,17 @@ grub_font_get_string_width (grub_font_t font, const char *str) } /* Get the glyph for FONT corresponding to the Unicode code point CODE. - Returns a pointer to an glyph indicating there is no glyph available - if CODE does not exist in the font. The glyphs are cached once loaded. */ + Returns the ASCII glyph for the code if no other fonts are available. + The glyphs are cached once loaded. */ struct grub_font_glyph * grub_font_get_glyph (grub_font_t font, grub_uint32_t code) { struct grub_font_glyph *glyph; glyph = grub_font_get_glyph_internal (font, code); if (glyph == 0) - glyph = unknown_glyph; + { + glyph = ascii_glyph_lookup (code); + } return glyph; } @@ -968,8 +1019,8 @@ grub_font_get_glyph_with_fallback (grub_font_t font, grub_uint32_t code) if (best_glyph) return best_glyph; else - /* Glyph not available in any font. Return unknown glyph. */ - return unknown_glyph; + /* Glyph not available in any font. Return ASCII failback. */ + return ascii_glyph_lookup (code); } diff --git a/util/grub-mkfont.c b/util/grub-mkfont.c index 3d1c6faac..e8e712f2c 100644 --- a/util/grub-mkfont.c +++ b/util/grub-mkfont.c @@ -49,6 +49,12 @@ struct grub_glyph_info grub_uint8_t bitmap[0]; }; +enum file_formats +{ + PF2, + ASCII_BITMAPS +}; + #define GRUB_FONT_FLAG_BOLD 1 #define GRUB_FONT_FLAG_NOBITMAP 2 #define GRUB_FONT_FLAG_NOHINTING 4 @@ -87,6 +93,7 @@ static struct option options[] = {"help", no_argument, 0, 'h'}, {"version", no_argument, 0, 'V'}, {"verbose", no_argument, 0, 'v'}, + {"ascii-bitmaps", no_argument, 0, 0x102}, {0, 0, 0, 0} }; @@ -102,6 +109,7 @@ usage (int status) Usage: %s [OPTIONS] FONT_FILES\n\ \nOptions:\n\ -o, --output=FILE_NAME set output file name\n\ + --ascii-bitmaps save only the ASCII bitmaps\n\ -i, --index=N set face index\n\ -r, --range=A-B[,C-D] set font range\n\ -n, --name=S set font family name\n\ @@ -337,7 +345,39 @@ print_glyphs (struct grub_font_info *font_info) } void -write_font (struct grub_font_info *font_info, char *output_file) +write_font_ascii_bitmap (struct grub_font_info *font_info, char *output_file) +{ + FILE *file; + struct grub_glyph_info *glyph; + int num; + + file = fopen (output_file, "wb"); + if (! file) + grub_util_error ("Can\'t write to file %s.", output_file); + + int correct_size; + for (glyph = font_info->glyph, num = 0; glyph; glyph = glyph->next, num++) + { + correct_size = 1; + if (glyph->width != 8 || glyph->height != 16) + { + // printf ("Width or height from glyph U+%04x not supported, skipping.\n", glyph->char_code); + correct_size = 0; + } + int row; + for (row = 0; row < glyph->height; row++) + { + if (correct_size) + fwrite (&glyph->bitmap[row], sizeof(glyph->bitmap[row]), 1, file); + else + fwrite (&correct_size, 1, 1, file); + } + } + fclose (file); +} + +void +write_font_pf2 (struct grub_font_info *font_info, char *output_file) { FILE *file; grub_uint32_t leng, data; @@ -473,9 +513,6 @@ write_font (struct grub_font_info *font_info, char *output_file) grub_util_write_image ((char *) &cur->bitmap[0], cur->bitmap_size, file); } - if (font_verbosity > 1) - print_glyphs (font_info); - fclose (file); } @@ -487,6 +524,7 @@ main (int argc, char *argv[]) int font_index = 0; int font_size = 0; char *output_file = NULL; + enum file_formats file_format = PF2; memset (&font_info, 0, sizeof (font_info)); @@ -552,7 +590,7 @@ main (int argc, char *argv[]) font_info.ranges = xrealloc (font_info.ranges, (font_info.num_range + GRUB_FONT_RANGE_BLOCK) * - sizeof (int) * 2); + sizeof (grub_uint32_t) * 2); font_info.ranges[font_info.num_range * 2] = a; font_info.ranges[font_info.num_range * 2 + 1] = b; @@ -591,12 +629,33 @@ main (int argc, char *argv[]) font_verbosity++; break; + case 0x102: + file_format = ASCII_BITMAPS; + break; + default: usage (1); break; } } + if (file_format == ASCII_BITMAPS && font_info.num_range > 0) + { + grub_util_error ("Option --ascii-bitmaps doesn't accept ranges (use ASCII)."); + return 1; + } + + else if (file_format == ASCII_BITMAPS) + { + font_info.ranges = xrealloc (font_info.ranges, + GRUB_FONT_RANGE_BLOCK * + sizeof (grub_uint32_t) * 2); + + font_info.ranges[0] = (grub_uint32_t) 0x00; + font_info.ranges[1] = (grub_uint32_t) 0x7f; + font_info.num_range = 1; + } + if (! output_file) grub_util_error ("No output file is specified."); @@ -638,7 +697,13 @@ main (int argc, char *argv[]) FT_Done_FreeType (ft_lib); - write_font (&font_info, output_file); + if (file_format == PF2) + write_font_pf2 (&font_info, output_file); + else if (file_format == ASCII_BITMAPS) + write_font_ascii_bitmap (&font_info, output_file); + + if (font_verbosity > 1) + print_glyphs (&font_info); return 0; }