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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2006 The Android Open Source Project | 3 * Copyright 2006 The Android Open Source Project |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 #include "SkAdvancedTypefaceMetrics.h" | 9 #include "SkAdvancedTypefaceMetrics.h" |
10 #include "SkBitmap.h" | 10 #include "SkBitmap.h" |
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1662 return 0; | 1662 return 0; |
1663 } | 1663 } |
1664 } | 1664 } |
1665 | 1665 |
1666 return size; | 1666 return size; |
1667 } | 1667 } |
1668 | 1668 |
1669 /////////////////////////////////////////////////////////////////////////////// | 1669 /////////////////////////////////////////////////////////////////////////////// |
1670 /////////////////////////////////////////////////////////////////////////////// | 1670 /////////////////////////////////////////////////////////////////////////////// |
1671 | 1671 |
1672 #include "SkTSearch.h" | |
1673 /*static*/ bool SkTypeface_FreeType::ScanFont( | 1672 /*static*/ bool SkTypeface_FreeType::ScanFont( |
1674 SkStream* stream, int ttcIndex, SkString* name, SkFontStyle* style, bool* is
FixedPitch) | 1673 SkStream* stream, int ttcIndex, SkString* name, SkTypeface::Style* style, bo
ol* isFixedPitch) |
1675 { | 1674 { |
1676 FT_Library library; | 1675 FT_Library library; |
1677 if (FT_Init_FreeType(&library)) { | 1676 if (FT_Init_FreeType(&library)) { |
1678 return false; | 1677 return false; |
1679 } | 1678 } |
1680 | 1679 |
1681 FT_Open_Args args; | 1680 FT_Open_Args args; |
1682 memset(&args, 0, sizeof(args)); | 1681 memset(&args, 0, sizeof(args)); |
1683 | 1682 |
1684 const void* memoryBase = stream->getMemoryBase(); | 1683 const void* memoryBase = stream->getMemoryBase(); |
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1698 args.flags = FT_OPEN_STREAM; | 1697 args.flags = FT_OPEN_STREAM; |
1699 args.stream = &streamRec; | 1698 args.stream = &streamRec; |
1700 } | 1699 } |
1701 | 1700 |
1702 FT_Face face; | 1701 FT_Face face; |
1703 if (FT_Open_Face(library, &args, ttcIndex, &face)) { | 1702 if (FT_Open_Face(library, &args, ttcIndex, &face)) { |
1704 FT_Done_FreeType(library); | 1703 FT_Done_FreeType(library); |
1705 return false; | 1704 return false; |
1706 } | 1705 } |
1707 | 1706 |
1708 int weight = SkFontStyle::kNormal_Weight; | 1707 int tempStyle = SkTypeface::kNormal; |
1709 int width = SkFontStyle::kNormal_Width; | |
1710 SkFontStyle::Slant slant = SkFontStyle::kUpright_Slant; | |
1711 if (face->style_flags & FT_STYLE_FLAG_BOLD) { | 1708 if (face->style_flags & FT_STYLE_FLAG_BOLD) { |
1712 weight = SkFontStyle::kBold_Weight; | 1709 tempStyle |= SkTypeface::kBold; |
1713 } | 1710 } |
1714 if (face->style_flags & FT_STYLE_FLAG_ITALIC) { | 1711 if (face->style_flags & FT_STYLE_FLAG_ITALIC) { |
1715 slant = SkFontStyle::kItalic_Slant; | 1712 tempStyle |= SkTypeface::kItalic; |
1716 } | |
1717 | |
1718 PS_FontInfoRec psFontInfo; | |
1719 TT_OS2* os2 = static_cast<TT_OS2*>(FT_Get_Sfnt_Table(face, ft_sfnt_os2)); | |
1720 if (os2 && os2->version != 0xffff) { | |
1721 weight = os2->usWeightClass; | |
1722 width = os2->usWidthClass; | |
1723 } else if (0 == FT_Get_PS_Font_Info(face, &psFontInfo) && psFontInfo.weight)
{ | |
1724 static const struct { | |
1725 char const * const name; | |
1726 int const weight; | |
1727 } commonWeights [] = { | |
1728 // There are probably more common names, but these are known to exis
t. | |
1729 { "black", SkFontStyle::kBlack_Weight }, | |
1730 { "bold", SkFontStyle::kBold_Weight }, | |
1731 { "book", (SkFontStyle::kNormal_Weight + SkFontStyle::kLight_Weight)
/2 }, | |
1732 { "demi", SkFontStyle::kSemiBold_Weight }, | |
1733 { "demibold", SkFontStyle::kSemiBold_Weight }, | |
1734 { "extrabold", SkFontStyle::kExtraBold_Weight }, | |
1735 { "extralight", SkFontStyle::kExtraLight_Weight }, | |
1736 { "heavy", SkFontStyle::kBlack_Weight }, | |
1737 { "light", SkFontStyle::kLight_Weight }, | |
1738 { "medium", SkFontStyle::kMedium_Weight }, | |
1739 { "normal", SkFontStyle::kNormal_Weight }, | |
1740 { "regular", SkFontStyle::kNormal_Weight }, | |
1741 { "semibold", SkFontStyle::kSemiBold_Weight }, | |
1742 { "thin", SkFontStyle::kThin_Weight }, | |
1743 { "ultra", SkFontStyle::kExtraBold_Weight }, | |
1744 { "ultrablack", 1000 }, | |
1745 { "ultrabold", SkFontStyle::kExtraBold_Weight }, | |
1746 { "ultraheavy", 1000 }, | |
1747 { "ultralight", SkFontStyle::kExtraLight_Weight }, | |
1748 }; | |
1749 int const index = SkStrLCSearch(&commonWeights[0].name, SK_ARRAY_COUNT(c
ommonWeights), | |
1750 psFontInfo.weight, sizeof(commonWeights)
); | |
1751 if (index >= 0) { | |
1752 weight = commonWeights[index].weight; | |
1753 } else { | |
1754 SkDEBUGF(("Do not know weight for: %s\n", psFontInfo.weight)); | |
1755 } | |
1756 } | 1713 } |
1757 | 1714 |
1758 if (name) { | 1715 if (name) { |
1759 name->set(face->family_name); | 1716 name->set(face->family_name); |
1760 } | 1717 } |
1761 if (style) { | 1718 if (style) { |
1762 *style = SkFontStyle(weight, width, slant); | 1719 *style = (SkTypeface::Style) tempStyle; |
1763 } | 1720 } |
1764 if (isFixedPitch) { | 1721 if (isFixedPitch) { |
1765 *isFixedPitch = FT_IS_FIXED_WIDTH(face); | 1722 *isFixedPitch = FT_IS_FIXED_WIDTH(face); |
1766 } | 1723 } |
1767 | 1724 |
1768 FT_Done_Face(face); | 1725 FT_Done_Face(face); |
1769 FT_Done_FreeType(library); | 1726 FT_Done_FreeType(library); |
1770 return true; | 1727 return true; |
1771 } | 1728 } |
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