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Diffstat (limited to 'EDK/Foundation/Library/EdkIIGlueLib/Library/UefiLib/Console.c')
| -rw-r--r-- | EDK/Foundation/Library/EdkIIGlueLib/Library/UefiLib/Console.c | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/EdkIIGlueLib/Library/UefiLib/Console.c b/EDK/Foundation/Library/EdkIIGlueLib/Library/UefiLib/Console.c new file mode 100644 index 0000000..a8a0635 --- /dev/null +++ b/EDK/Foundation/Library/EdkIIGlueLib/Library/UefiLib/Console.c @@ -0,0 +1,288 @@ +/*++ + +Copyright (c) 2004 - 2006, Intel Corporation +All rights reserved. This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + + +Module Name: + + Console.c + +Abstract: + + UEFI library functions. + +--*/ + +#include "EdkIIGlueUefi.h" + +typedef struct { + CHAR16 WChar; + UINT32 Width; +} UNICODE_WIDTH_ENTRY; + +UNICODE_WIDTH_ENTRY mUnicodeWidthTable[] = { + // + // General script area + // + {(CHAR16)0x1FFF, 1}, + /* + * Merge the blocks and replace them with the above entry as they fall to + * the same category and they are all narrow glyph. This will reduce search + * time and table size. The merge will omit the reserved code. + * + * Remove the above item if below is un-commented. + * + {(CHAR16)0x007F, 1}, // C0 controls and basic Latin. 0x0000-0x007F + {(CHAR16)0x00FF, 1}, // C1 controls and Latin-1 support. 0x0080-0x00FF + {(CHAR16)0x017F, 1}, // Latin extended-A. 0x0100-0x017F + {(CHAR16)0x024F, 1}, // Latin extended-B. 0x0180-0x024F + {(CHAR16)0x02AF, 1}, // IPA extensions. 0x0250-0x02AF + {(CHAR16)0x02FF, 1}, // Spacing modifier letters. 0x02B0-0x02FF + {(CHAR16)0x036F, 1}, // Combining diacritical marks. 0x0300-0x036F + {(CHAR16)0x03FF, 1}, // Greek. 0x0370-0x03FF + {(CHAR16)0x04FF, 1}, // Cyrillic. 0x0400-0x04FF + {(CHAR16)0x052F, 0}, // Unassigned. As Armenian in ver3.0. 0x0500-0x052F + {(CHAR16)0x058F, 1}, // Armenian. 0x0530-0x058F + {(CHAR16)0x05FF, 1}, // Hebrew. 0x0590-0x05FF + {(CHAR16)0x06FF, 1}, // Arabic. 0x0600-0x06FF + {(CHAR16)0x08FF, 0}, // Unassigned. 0x0700-0x08FF + {(CHAR16)0x097F, 1}, // Devanagari. 0x0900-0x097F + {(CHAR16)0x09FF, 1}, // Bengali. 0x0980-0x09FF + {(CHAR16)0x0A7F, 1}, // Gurmukhi. 0x0A00-0x0A7F + {(CHAR16)0x0AFF, 1}, // Gujarati. 0x0A80-0x0AFF + {(CHAR16)0x0B7F, 1}, // Oriya. 0x0B00-0x0B7F + {(CHAR16)0x0BFF, 1}, // Tamil. (See page 7-92). 0x0B80-0x0BFF + {(CHAR16)0x0C7F, 1}, // Telugu. 0x0C00-0x0C7F + {(CHAR16)0x0CFF, 1}, // Kannada. (See page 7-100). 0x0C80-0x0CFF + {(CHAR16)0x0D7F, 1}, // Malayalam (See page 7-104). 0x0D00-0x0D7F + {(CHAR16)0x0DFF, 0}, // Unassigned. 0x0D80-0x0DFF + {(CHAR16)0x0E7F, 1}, // Thai. 0x0E00-0x0E7F + {(CHAR16)0x0EFF, 1}, // Lao. 0x0E80-0x0EFF + {(CHAR16)0x0FBF, 1}, // Tibetan. 0x0F00-0x0FBF + {(CHAR16)0x109F, 0}, // Unassigned. 0x0FC0-0x109F + {(CHAR16)0x10FF, 1}, // Georgian. 0x10A0-0x10FF + {(CHAR16)0x11FF, 1}, // Hangul Jamo. 0x1100-0x11FF + {(CHAR16)0x1DFF, 0}, // Unassigned. 0x1200-0x1DFF + {(CHAR16)0x1EFF, 1}, // Latin extended additional. 0x1E00-0x1EFF + {(CHAR16)0x1FFF, 1}, // Greek extended. 0x1F00-0x1FFF + * + */ + + // + // Symbol area + // + {(CHAR16)0x2FFF, 1}, + /* + * Merge the blocks and replace them with the above entry as they fall to + * the same category and they are all narrow glyph. This will reduce search + * time and table size. The merge will omit the reserved code. + * + * Remove the above item if below is un-commented. + * + {(CHAR16)0x206F, 1}, // General punctuation. (See page7-154). 0x200-0x206F + {(CHAR16)0x209F, 1}, // Superscripts and subscripts. 0x2070-0x209F + {(CHAR16)0x20CF, 1}, // Currency symbols. 0x20A0-0x20CF + {(CHAR16)0x20FF, 1}, // Combining diacritical marks for symbols. 0x20D0-0x20FF + {(CHAR16)0x214F, 1}, // Letterlike sympbols. 0x2100-0x214F + {(CHAR16)0x218F, 1}, // Number forms. 0x2150-0x218F + {(CHAR16)0x21FF, 1}, // Arrows. 0x2190-0x21FF + {(CHAR16)0x22FF, 1}, // Mathematical operators. 0x2200-0x22FF + {(CHAR16)0x23FF, 1}, // Miscellaneous technical. 0x2300-0x23FF + {(CHAR16)0x243F, 1}, // Control pictures. 0x2400-0x243F + {(CHAR16)0x245F, 1}, // Optical character recognition. 0x2440-0x245F + {(CHAR16)0x24FF, 1}, // Enclosed alphanumerics. 0x2460-0x24FF + {(CHAR16)0x257F, 1}, // Box drawing. 0x2500-0x257F + {(CHAR16)0x259F, 1}, // Block elements. 0x2580-0x259F + {(CHAR16)0x25FF, 1}, // Geometric shapes. 0x25A0-0x25FF + {(CHAR16)0x26FF, 1}, // Miscellaneous symbols. 0x2600-0x26FF + {(CHAR16)0x27BF, 1}, // Dingbats. 0x2700-0x27BF + {(CHAR16)0x2FFF, 0}, // Reserved. 0x27C0-0x2FFF + * + */ + + // + // CJK phonetics and symbol area + // + {(CHAR16)0x33FF, 2}, + /* + * Merge the blocks and replace them with the above entry as they fall to + * the same category and they are all wide glyph. This will reduce search + * time and table size. The merge will omit the reserved code. + * + * Remove the above item if below is un-commented. + * + {(CHAR16)0x303F, 2}, // CJK symbols and punctuation. 0x3000-0x303F + {(CHAR16)0x309F, 2}, // Hiragana. 0x3040-0x309F + {(CHAR16)0x30FF, 2}, // Katakana. 0x30A0-0x30FF + {(CHAR16)0x312F, 2}, // Bopomofo. 0x3100-0x312F + {(CHAR16)0x318F, 2}, // Hangul compatibility jamo. 0x3130-0x318F + {(CHAR16)0x319F, 2}, // Kanbun. 0x3190-0x319F + {(CHAR16)0x31FF, 0}, // Reserved. As Bopomofo extended in ver3.0. 0x31A0-0x31FF + {(CHAR16)0x32FF, 2}, // Enclosed CJK letters and months. 0x3200-0x32FF + {(CHAR16)0x33FF, 2}, // CJK compatibility. 0x3300-0x33FF + * + */ + + // + // CJK ideograph area + // + {(CHAR16)0x9FFF, 2}, + /* + * Merge the blocks and replace them with the above entry as they fall to + * the same category and they are all wide glyph. This will reduce search + * time and table size. The merge will omit the reserved code. + * + * Remove the above item if below is un-commented. + * + {(CHAR16)0x4DFF, 0}, // Reserved. 0x3400-0x4DBF as CJK unified ideographs + // extension A in ver3.0. 0x3400-0x4DFF + {(CHAR16)0x9FFF, 2}, // CJK unified ideographs. 0x4E00-0x9FFF + * + */ + + // + // Reserved + // + {(CHAR16)0xABFF, 0}, // Reserved. 0xA000-0xA490 as Yi syllables. 0xA490-0xA4D0 + // as Yi radicals in ver3.0. 0xA000-0xABFF + // + // Hangul syllables + // + {(CHAR16)0xD7FF, 2}, + /* + * Merge the blocks and replace them with the above entry as they fall to + * the same category and they are all wide glyph. This will reduce search + * time and table size. The merge will omit the reserved code. + * + * Remove the above item if below is un-commented. + * + {(CHAR16)0xD7A3, 2}, // Hangul syllables. 0xAC00-0xD7A3 + {(CHAR16)0xD7FF, 0}, // Reserved. 0xD7A3-0xD7FF + * + */ + + // + // Surrogates area + // + {(CHAR16)0xDFFF, 0}, // Surrogates, not used now. 0xD800-0xDFFF + + // + // Private use area + // + {(CHAR16)0xF8FF, 0}, // Private use area. 0xE000-0xF8FF + + // + // Compatibility area and specials + // + {(CHAR16)0xFAFF, 2}, // CJK compatibility ideographs. 0xF900-0xFAFF + {(CHAR16)0xFB4F, 1}, // Alphabetic presentation forms. 0xFB00-0xFB4F + {(CHAR16)0xFDFF, 1}, // Arabic presentation forms-A. 0xFB50-0xFDFF + {(CHAR16)0xFE1F, 0}, // Reserved. As variation selectors in ver3.0. 0xFE00-0xFE1F + {(CHAR16)0xFE2F, 1}, // Combining half marks. 0xFE20-0xFE2F + {(CHAR16)0xFE4F, 2}, // CJK compatibility forms. 0xFE30-0xFE4F + {(CHAR16)0xFE6F, 1}, // Small Form Variants. 0xFE50-0xFE6F + {(CHAR16)0xFEFF, 1}, // Arabic presentation forms-B. 0xFE70-0xFEFF + {(CHAR16)0xFFEF, 1}, // Half width and full width forms. 0xFF00-0xFFEF + {(CHAR16)0xFFFF, 0}, // Speicials. 0xFFF0-0xFFFF +}; + +/** + This function computes and returns the width of the Unicode character + specified by UnicodeChar. + + @param UnicodeChar A Unicode character. + + @retval 0 The width if UnicodeChar could not be determined. + @retval 1 UnicodeChar is a narrow glyph. + @retval 2 UnicodeChar is a wide glyph. + +**/ +UINTN +EFIAPI +GlueGetGlyphWidth ( + IN CHAR16 UnicodeChar + ) +{ + UINTN Index; + UINTN Low; + UINTN High; + UNICODE_WIDTH_ENTRY *Item; + + Item = NULL; + Low = 0; + High = (sizeof (mUnicodeWidthTable)) / (sizeof (UNICODE_WIDTH_ENTRY)) - 1; + while (Low <= High) { + Index = (Low + High) >> 1; + Item = &(mUnicodeWidthTable[Index]); + if (Index == 0) { + if (UnicodeChar <= Item->WChar) { + break; + } + + return 0; + } + + if (UnicodeChar > Item->WChar) { + Low = Index + 1; + } else if (UnicodeChar <= mUnicodeWidthTable[Index - 1].WChar) { + High = Index - 1; + } else { + // + // Index - 1 < UnicodeChar <= Index. Found + // + break; + } + } + + if (Low <= High) { + return Item->Width; + } + + return 0; +} + +/** + This function computes and returns the display length of + the Null-terminated Unicode string specified by String. + If String is NULL, then 0 is returned. + If any of the widths of the Unicode characters in String + can not be determined, then 0 is returned. + + @param String A pointer to a Null-terminated Unicode string. + + @return The display length of the Null-terminated Unicode string specified by String. + +**/ +UINTN +EFIAPI +UnicodeStringDisplayLength ( + IN CONST CHAR16 *String + ) +{ + UINTN Length; + UINTN Width; + + if (String == NULL) { + return 0; + } + + Length = 0; + while (*String != 0) { + Width = GetGlyphWidth (*String); + if (Width == 0) { + return 0; + } + + Length += Width; + String++; + } + + return Length; +} |