vbatts/grub
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Merge mainline into bidi

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-03-15 10:28:09 +01:00
commit 53f312c1cf
366 changed files with 13728 additions and 5754 deletions
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127
font/font.c
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@ -1,7 +1,7 @@
/* font.c - Font API and font file loader. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003,2005,2006,2007,2008,2009 Free Software Foundation, Inc.
* Copyright (C) 2003,2005,2006,2007,2008,2009,2010 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -28,6 +28,11 @@
#include <grub/bitmap.h>
#include <grub/charset.h>
#include <grub/unicode.h>
#include <grub/fontformat.h>
#ifdef USE_ASCII_FAILBACK
#include "ascii.h"
#endif
#ifndef FONT_DEBUG
#define FONT_DEBUG 0
@ -45,6 +50,7 @@ struct char_index_entry
#define FONT_WEIGHT_NORMAL 100
#define FONT_WEIGHT_BOLD 200
#define ASCII_BITMAP_SIZE 16
struct grub_font
{
@ -86,19 +92,6 @@ struct font_file_section
int eof;
};
/* Font file format constants. */
static const char pff2_magic[4] = { 'P', 'F', 'F', '2' };
static const char section_names_file[4] = { 'F', 'I', 'L', 'E' };
static const char section_names_font_name[4] = { 'N', 'A', 'M', 'E' };
static const char section_names_point_size[4] = { 'P', 'T', 'S', 'Z' };
static const char section_names_weight[4] = { 'W', 'E', 'I', 'G' };
static const char section_names_max_char_width[4] = { 'M', 'A', 'X', 'W' };
static const char section_names_max_char_height[4] = { 'M', 'A', 'X', 'H' };
static const char section_names_ascent[4] = { 'A', 'S', 'C', 'E' };
static const char section_names_descent[4] = { 'D', 'E', 'S', 'C' };
static const char section_names_char_index[4] = { 'C', 'H', 'I', 'X' };
static const char section_names_data[4] = { 'D', 'A', 'T', 'A' };
/* Replace unknown glyphs with a rounded question mark. */
static grub_uint8_t unknown_glyph_bitmap[] =
{
@ -132,6 +125,48 @@ static struct grub_font null_font;
/* Flag to ensure module is initialized only once. */
static grub_uint8_t font_loader_initialized;
#ifdef USE_ASCII_FAILBACK
static struct grub_font_glyph *ascii_font_glyph[0x80];
#endif
static struct grub_font_glyph *
ascii_glyph_lookup (grub_uint32_t code)
{
#ifdef USE_ASCII_FAILBACK
static int ascii_failback_initialized = 0;
if (code >= 0x80)
return NULL;
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 NULL;
#endif
}
void
grub_font_loader_init (void)
{
@ -415,7 +450,8 @@ grub_font_load (const char *filename)
#if FONT_DEBUG >= 3
grub_printf("opened FILE section\n");
#endif
if (grub_memcmp (section.name, section_names_file, 4) != 0)
if (grub_memcmp (section.name, FONT_FORMAT_SECTION_NAMES_FILE,
sizeof(FONT_FORMAT_SECTION_NAMES_FILE) - 1) != 0)
{
grub_error (GRUB_ERR_BAD_FONT,
"font file format error: 1st section must be FILE");
@ -444,7 +480,7 @@ grub_font_load (const char *filename)
grub_printf("read magic ok\n");
#endif
if (grub_memcmp (magic, pff2_magic, 4) != 0)
if (grub_memcmp (magic, FONT_FORMAT_PFF2_MAGIC, 4) != 0)
{
grub_error (GRUB_ERR_BAD_FONT, "invalid font magic %x %x %x %x",
magic[0], magic[1], magic[2], magic[3]);
@ -484,18 +520,22 @@ grub_font_load (const char *filename)
section.name[2], section.name[3]);
#endif
if (grub_memcmp (section.name, section_names_font_name, 4) == 0)
if (grub_memcmp (section.name, FONT_FORMAT_SECTION_NAMES_FONT_NAME,
sizeof(FONT_FORMAT_SECTION_NAMES_FONT_NAME) - 1) == 0)
{
font->name = read_section_as_string (&section);
if (!font->name)
goto fail;
}
else if (grub_memcmp (section.name, section_names_point_size, 4) == 0)
else if (grub_memcmp (section.name,
FONT_FORMAT_SECTION_NAMES_POINT_SIZE,
sizeof(FONT_FORMAT_SECTION_NAMES_POINT_SIZE) - 1) == 0)
{
if (read_section_as_short (&section, &font->point_size) != 0)
goto fail;
}
else if (grub_memcmp (section.name, section_names_weight, 4) == 0)
else if (grub_memcmp (section.name, FONT_FORMAT_SECTION_NAMES_WEIGHT,
sizeof(FONT_FORMAT_SECTION_NAMES_WEIGHT) - 1) == 0)
{
char *wt;
wt = read_section_as_string (&section);
@ -508,32 +548,42 @@ grub_font_load (const char *filename)
font->weight = FONT_WEIGHT_BOLD;
grub_free (wt);
}
else if (grub_memcmp (section.name, section_names_max_char_width, 4) == 0)
else if (grub_memcmp (section.name,
FONT_FORMAT_SECTION_NAMES_MAX_CHAR_WIDTH,
sizeof(FONT_FORMAT_SECTION_NAMES_MAX_CHAR_WIDTH) - 1) == 0)
{
if (read_section_as_short (&section, &font->max_char_width) != 0)
goto fail;
}
else if (grub_memcmp (section.name, section_names_max_char_height, 4) == 0)
else if (grub_memcmp (section.name,
FONT_FORMAT_SECTION_NAMES_MAX_CHAR_HEIGHT,
sizeof(FONT_FORMAT_SECTION_NAMES_MAX_CHAR_HEIGHT) - 1) == 0)
{
if (read_section_as_short (&section, &font->max_char_height) != 0)
goto fail;
}
else if (grub_memcmp (section.name, section_names_ascent, 4) == 0)
else if (grub_memcmp (section.name,
FONT_FORMAT_SECTION_NAMES_ASCENT,
sizeof(FONT_FORMAT_SECTION_NAMES_ASCENT) - 1) == 0)
{
if (read_section_as_short (&section, &font->ascent) != 0)
goto fail;
}
else if (grub_memcmp (section.name, section_names_descent, 4) == 0)
else if (grub_memcmp (section.name, FONT_FORMAT_SECTION_NAMES_DESCENT,
sizeof(FONT_FORMAT_SECTION_NAMES_DESCENT) - 1) == 0)
{
if (read_section_as_short (&section, &font->descent) != 0)
goto fail;
}
else if (grub_memcmp (section.name, section_names_char_index, 4) == 0)
else if (grub_memcmp (section.name,
FONT_FORMAT_SECTION_NAMES_CHAR_INDEX,
sizeof(FONT_FORMAT_SECTION_NAMES_CHAR_INDEX) - 1) == 0)
{
if (load_font_index (file, section.length, font) != 0)
goto fail;
}
else if (grub_memcmp (section.name, section_names_data, 4) == 0)
else if (grub_memcmp (section.name, FONT_FORMAT_SECTION_NAMES_DATA,
sizeof(FONT_FORMAT_SECTION_NAMES_DATA) - 1) == 0)
{
/* When the DATA section marker is reached, we stop reading. */
break;
@ -620,7 +670,7 @@ find_glyph (const grub_font_t font, grub_uint32_t code)
table = font->char_index;
/* Use BMP index if possible. */
if (code < 0x10000)
if (code < 0x10000 && font->bmp_idx)
{
if (font->bmp_idx[code] == 0xffff)
return 0;
@ -814,7 +864,7 @@ grub_font_get (const char *font_name)
return &null_font;
}
/* Get the full name of the font. For instance, "Helvetica Bold 12". */
/* Get the full name of the font. */
const char *
grub_font_get_name (grub_font_t font)
{
@ -899,15 +949,18 @@ 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);
struct grub_font_glyph *glyph = 0;
if (font)
glyph = grub_font_get_glyph_internal (font, code);
if (glyph == 0)
glyph = unknown_glyph;
{
glyph = ascii_glyph_lookup (code);
}
return glyph;
}
@ -1260,11 +1313,13 @@ grub_font_construct_glyph (grub_font_t hinted_font,
main_glyph = grub_font_get_glyph_with_fallback (hinted_font, glyph_id->base);
/* Glyph not available in any font. Use ASCII fallback. */
if (!main_glyph)
{
/* Glyph not available in any font. Return unknown glyph. */
return grub_font_dup_glyph (unknown_glyph);
}
main_glyph = ascii_glyph_lookup (code);
/* Glyph not available in any font. Return unknown glyph. */
if (!main_glyph)
return grub_font_dup_glyph (unknown_glyph);
if (!glyph_id->ncomb && !glyph_id->attributes)
return grub_font_dup_glyph (main_glyph);