OLD | NEW |
1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 | 6 |
7 #include "fx_fpf.h" | 7 #include "fx_fpf.h" |
8 #if _FX_OS_ == _FX_ANDROID_ | 8 #if _FX_OS_ == _FX_ANDROID_ |
9 #include "fpf_skiafont.h" | 9 #include "fpf_skiafont.h" |
10 #include "fpf_skiafontmgr.h" | 10 #include "fpf_skiafontmgr.h" |
11 #define FPF_EM_ADJUST(em, a) (em == 0 ? (a) : (a) * 1000 / em) | 11 #define FPF_EM_ADJUST(em, a) (em == 0 ? (a) : (a)*1000 / em) |
12 CFPF_SkiaFont::CFPF_SkiaFont() | 12 CFPF_SkiaFont::CFPF_SkiaFont() |
13 : m_pFontMgr(NULL) | 13 : m_pFontMgr(NULL), |
14 , m_pFontDes(NULL) | 14 m_pFontDes(NULL), |
15 , m_Face(NULL) | 15 m_Face(NULL), |
16 , m_dwStyle(0) | 16 m_dwStyle(0), |
17 , m_uCharset(0) | 17 m_uCharset(0), |
18 , m_dwRefCount(0) | 18 m_dwRefCount(0) {} |
19 { | 19 CFPF_SkiaFont::~CFPF_SkiaFont() { |
20 } | 20 if (m_Face) { |
21 CFPF_SkiaFont::~CFPF_SkiaFont() | 21 FXFT_Done_Face(m_Face); |
22 { | 22 } |
23 if (m_Face) { | 23 } |
24 FXFT_Done_Face(m_Face); | 24 void CFPF_SkiaFont::Release() { |
| 25 if (--m_dwRefCount == 0) { |
| 26 delete this; |
| 27 } |
| 28 } |
| 29 IFPF_Font* CFPF_SkiaFont::Retain() { |
| 30 m_dwRefCount++; |
| 31 return (IFPF_Font*)this; |
| 32 } |
| 33 FPF_HFONT CFPF_SkiaFont::GetHandle() { |
| 34 return NULL; |
| 35 } |
| 36 CFX_ByteString CFPF_SkiaFont::GetFamilyName() { |
| 37 if (!m_Face) { |
| 38 return CFX_ByteString(); |
| 39 } |
| 40 return CFX_ByteString(FXFT_Get_Face_Family_Name(m_Face)); |
| 41 } |
| 42 CFX_WideString CFPF_SkiaFont::GetPsName() { |
| 43 if (!m_Face) { |
| 44 return CFX_WideString(); |
| 45 } |
| 46 return CFX_WideString::FromLocal(FXFT_Get_Postscript_Name(m_Face)); |
| 47 } |
| 48 int32_t CFPF_SkiaFont::GetGlyphIndex(FX_WCHAR wUnicode) { |
| 49 if (!m_Face) { |
| 50 return wUnicode; |
| 51 } |
| 52 if (FXFT_Select_Charmap(m_Face, FXFT_ENCODING_UNICODE)) { |
| 53 return 0; |
| 54 } |
| 55 return FXFT_Get_Char_Index(m_Face, wUnicode); |
| 56 } |
| 57 int32_t CFPF_SkiaFont::GetGlyphWidth(int32_t iGlyphIndex) { |
| 58 if (!m_Face) { |
| 59 return 0; |
| 60 } |
| 61 if (FXFT_Load_Glyph( |
| 62 m_Face, iGlyphIndex, |
| 63 FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH)) { |
| 64 return 0; |
| 65 } |
| 66 return FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), |
| 67 FXFT_Get_Glyph_HoriAdvance(m_Face)); |
| 68 } |
| 69 int32_t CFPF_SkiaFont::GetAscent() const { |
| 70 if (!m_Face) { |
| 71 return 0; |
| 72 } |
| 73 return FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), |
| 74 FXFT_Get_Face_Ascender(m_Face)); |
| 75 } |
| 76 int32_t CFPF_SkiaFont::GetDescent() const { |
| 77 if (!m_Face) { |
| 78 return 0; |
| 79 } |
| 80 return FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), |
| 81 FXFT_Get_Face_Descender(m_Face)); |
| 82 } |
| 83 FX_BOOL CFPF_SkiaFont::GetGlyphBBox(int32_t iGlyphIndex, FX_RECT& rtBBox) { |
| 84 if (!m_Face) { |
| 85 return FALSE; |
| 86 } |
| 87 if (FXFT_Is_Face_Tricky(m_Face)) { |
| 88 if (FXFT_Set_Char_Size(m_Face, 0, 1000 * 64, 72, 72)) { |
| 89 return FALSE; |
25 } | 90 } |
26 } | 91 if (FXFT_Load_Glyph(m_Face, iGlyphIndex, |
27 void CFPF_SkiaFont::Release() | 92 FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH)) { |
28 { | 93 FXFT_Set_Pixel_Sizes(m_Face, 0, 64); |
29 if (--m_dwRefCount == 0) { | 94 return FALSE; |
30 delete this; | |
31 } | 95 } |
32 } | 96 FXFT_Glyph glyph; |
33 IFPF_Font* CFPF_SkiaFont::Retain() | 97 if (FXFT_Get_Glyph(m_Face->glyph, &glyph)) { |
34 { | 98 FXFT_Set_Pixel_Sizes(m_Face, 0, 64); |
35 m_dwRefCount++; | 99 return FALSE; |
36 return (IFPF_Font*)this; | |
37 } | |
38 FPF_HFONT CFPF_SkiaFont::GetHandle() | |
39 { | |
40 return NULL; | |
41 } | |
42 CFX_ByteString CFPF_SkiaFont::GetFamilyName() | |
43 { | |
44 if (!m_Face) { | |
45 return CFX_ByteString(); | |
46 } | 100 } |
47 return CFX_ByteString(FXFT_Get_Face_Family_Name(m_Face)); | 101 FXFT_BBox cbox; |
48 } | 102 FXFT_Glyph_Get_CBox(glyph, FXFT_GLYPH_BBOX_PIXELS, &cbox); |
49 CFX_WideString CFPF_SkiaFont::GetPsName() | 103 int32_t x_ppem = m_Face->size->metrics.x_ppem; |
50 { | 104 int32_t y_ppem = m_Face->size->metrics.y_ppem; |
51 if (!m_Face) { | 105 rtBBox.left = FPF_EM_ADJUST(x_ppem, cbox.xMin); |
52 return CFX_WideString(); | 106 rtBBox.right = FPF_EM_ADJUST(x_ppem, cbox.xMax); |
53 } | 107 rtBBox.top = FPF_EM_ADJUST(y_ppem, cbox.yMax); |
54 return CFX_WideString::FromLocal(FXFT_Get_Postscript_Name(m_Face)); | 108 rtBBox.bottom = FPF_EM_ADJUST(y_ppem, cbox.yMin); |
55 } | 109 rtBBox.top = FX_MIN(rtBBox.top, GetAscent()); |
56 int32_t CFPF_SkiaFont::GetGlyphIndex(FX_WCHAR wUnicode) | 110 rtBBox.bottom = FX_MAX(rtBBox.bottom, GetDescent()); |
57 { | 111 FXFT_Done_Glyph(glyph); |
58 if (!m_Face) { | 112 return FXFT_Set_Pixel_Sizes(m_Face, 0, 64) == 0; |
59 return wUnicode; | 113 } |
60 } | 114 if (FXFT_Load_Glyph( |
61 if (FXFT_Select_Charmap(m_Face, FXFT_ENCODING_UNICODE)) { | 115 m_Face, iGlyphIndex, |
62 return 0; | 116 FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH)) { |
63 } | 117 return FALSE; |
64 return FXFT_Get_Char_Index(m_Face, wUnicode); | 118 } |
65 } | 119 rtBBox.left = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), |
66 int32_t CFPF_SkiaFont::GetGlyphWidth(int32_t iGlyphIndex) | 120 FXFT_Get_Glyph_HoriBearingX(m_Face)); |
67 { | 121 rtBBox.bottom = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), |
68 if (!m_Face) { | 122 FXFT_Get_Glyph_HoriBearingY(m_Face)); |
69 return 0; | 123 rtBBox.right = FPF_EM_ADJUST( |
70 } | 124 FXFT_Get_Face_UnitsPerEM(m_Face), |
71 if (FXFT_Load_Glyph(m_Face, iGlyphIndex, FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNO
RE_GLOBAL_ADVANCE_WIDTH)) { | 125 FXFT_Get_Glyph_HoriBearingX(m_Face) + FXFT_Get_Glyph_Width(m_Face)); |
72 return 0; | 126 rtBBox.top = FPF_EM_ADJUST( |
73 } | 127 FXFT_Get_Face_UnitsPerEM(m_Face), |
74 return FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), FXFT_Get_Glyph_HoriAd
vance(m_Face)); | 128 FXFT_Get_Glyph_HoriBearingY(m_Face) - FXFT_Get_Glyph_Height(m_Face)); |
75 } | 129 return TRUE; |
76 int32_t CFPF_SkiaFont::GetAscent() const | 130 } |
77 { | 131 FX_BOOL CFPF_SkiaFont::GetBBox(FX_RECT& rtBBox) { |
78 if (!m_Face) { | 132 if (!m_Face) { |
79 return 0; | 133 return FALSE; |
80 } | 134 } |
81 return FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), FXFT_Get_Face_Ascende
r(m_Face)); | 135 rtBBox.left = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), |
82 } | 136 FXFT_Get_Face_xMin(m_Face)); |
83 int32_t CFPF_SkiaFont::GetDescent() const | 137 rtBBox.top = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), |
84 { | 138 FXFT_Get_Face_yMin(m_Face)); |
85 if (!m_Face) { | 139 rtBBox.right = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), |
86 return 0; | 140 FXFT_Get_Face_xMax(m_Face)); |
87 } | 141 rtBBox.bottom = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), |
88 return FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), FXFT_Get_Face_Descend
er(m_Face)); | 142 FXFT_Get_Face_yMax(m_Face)); |
89 } | 143 return TRUE; |
90 FX_BOOL CFPF_SkiaFont::GetGlyphBBox(int32_t iGlyphIndex, FX_RECT &rtBBox) | 144 } |
91 { | 145 int32_t CFPF_SkiaFont::GetHeight() const { |
92 if (!m_Face) { | 146 if (!m_Face) { |
93 return FALSE; | 147 return 0; |
94 } | 148 } |
95 if (FXFT_Is_Face_Tricky(m_Face)) { | 149 return FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), |
96 if (FXFT_Set_Char_Size(m_Face, 0, 1000 * 64, 72, 72)) { | 150 FXFT_Get_Face_Height(m_Face)); |
97 return FALSE; | 151 } |
98 } | 152 int32_t CFPF_SkiaFont::GetItalicAngle() const { |
99 if (FXFT_Load_Glyph(m_Face, iGlyphIndex, FXFT_LOAD_IGNORE_GLOBAL_ADVANCE
_WIDTH)) { | 153 if (!m_Face) { |
100 FXFT_Set_Pixel_Sizes(m_Face, 0, 64); | 154 return 0; |
101 return FALSE; | 155 } |
102 } | 156 TT_Postscript* ttInfo = |
103 FXFT_Glyph glyph; | 157 (TT_Postscript*)FT_Get_Sfnt_Table(m_Face, ft_sfnt_post); |
104 if (FXFT_Get_Glyph(m_Face->glyph, &glyph)) { | 158 if (ttInfo) { |
105 FXFT_Set_Pixel_Sizes(m_Face, 0, 64); | 159 return ttInfo->italicAngle; |
106 return FALSE; | 160 } |
107 } | 161 return 0; |
108 FXFT_BBox cbox; | 162 } |
109 FXFT_Glyph_Get_CBox(glyph, FXFT_GLYPH_BBOX_PIXELS, &cbox); | 163 FX_DWORD CFPF_SkiaFont::GetFontData(FX_DWORD dwTable, |
110 int32_t x_ppem = m_Face->size->metrics.x_ppem; | 164 uint8_t* pBuffer, |
111 int32_t y_ppem = m_Face->size->metrics.y_ppem; | 165 FX_DWORD dwSize) { |
112 rtBBox.left = FPF_EM_ADJUST(x_ppem, cbox.xMin); | 166 if (!m_Face) { |
113 rtBBox.right = FPF_EM_ADJUST(x_ppem, cbox.xMax); | 167 return 0; |
114 rtBBox.top = FPF_EM_ADJUST(y_ppem, cbox.yMax); | 168 } |
115 rtBBox.bottom = FPF_EM_ADJUST(y_ppem, cbox.yMin); | 169 FT_ULong ulSize = pdfium::base::checked_cast<FT_ULong>(dwSize); |
116 rtBBox.top = FX_MIN(rtBBox.top, GetAscent()); | 170 if (FXFT_Load_Sfnt_Table(m_Face, dwTable, 0, pBuffer, &ulSize)) { |
117 rtBBox.bottom = FX_MAX(rtBBox.bottom, GetDescent()); | 171 return 0; |
118 FXFT_Done_Glyph(glyph); | 172 } |
119 return FXFT_Set_Pixel_Sizes(m_Face, 0, 64) == 0; | 173 return pdfium::base::checked_cast<FX_DWORD>(ulSize); |
120 } | 174 } |
121 if (FXFT_Load_Glyph(m_Face, iGlyphIndex, FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNO
RE_GLOBAL_ADVANCE_WIDTH)) { | 175 FX_BOOL CFPF_SkiaFont::InitFont(CFPF_SkiaFontMgr* pFontMgr, |
122 return FALSE; | 176 CFPF_SkiaFontDescriptor* pFontDes, |
123 } | 177 const CFX_ByteStringC& bsFamily, |
124 rtBBox.left = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), FXFT_Get_Glyph
_HoriBearingX(m_Face)); | 178 FX_DWORD dwStyle, |
125 rtBBox.bottom = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), FXFT_Get_Gly
ph_HoriBearingY(m_Face)); | 179 uint8_t uCharset) { |
126 rtBBox.right = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), FXFT_Get_Glyp
h_HoriBearingX(m_Face) + FXFT_Get_Glyph_Width(m_Face)); | 180 if (!pFontMgr || !pFontDes) { |
127 rtBBox.top = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), FXFT_Get_Glyph_
HoriBearingY(m_Face) - FXFT_Get_Glyph_Height(m_Face)); | 181 return FALSE; |
128 return TRUE; | 182 } |
129 } | 183 switch (pFontDes->GetType()) { |
130 FX_BOOL CFPF_SkiaFont::GetBBox(FX_RECT &rtBBox) | 184 case FPF_SKIAFONTTYPE_Path: { |
131 { | 185 CFPF_SkiaPathFont* pFont = (CFPF_SkiaPathFont*)pFontDes; |
132 if (!m_Face) { | 186 m_Face = pFontMgr->GetFontFace(pFont->m_pPath, pFont->m_iFaceIndex); |
133 return FALSE; | 187 } break; |
134 } | 188 case FPF_SKIAFONTTYPE_File: { |
135 rtBBox.left = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), FXFT_Get_Face_
xMin(m_Face)); | 189 CFPF_SkiaFileFont* pFont = (CFPF_SkiaFileFont*)pFontDes; |
136 rtBBox.top = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), FXFT_Get_Face_y
Min(m_Face)); | 190 m_Face = pFontMgr->GetFontFace(pFont->m_pFile, pFont->m_iFaceIndex); |
137 rtBBox.right = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), FXFT_Get_Face
_xMax(m_Face)); | 191 } break; |
138 rtBBox.bottom = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), FXFT_Get_Fac
e_yMax(m_Face)); | 192 case FPF_SKIAFONTTYPE_Buffer: { |
139 return TRUE; | 193 CFPF_SkiaBufferFont* pFont = (CFPF_SkiaBufferFont*)pFontDes; |
140 } | 194 m_Face = pFontMgr->GetFontFace((const uint8_t*)pFont->m_pBuffer, |
141 int32_t CFPF_SkiaFont::GetHeight() const | 195 pFont->m_szBuffer, pFont->m_iFaceIndex); |
142 { | 196 } break; |
143 if (!m_Face) { | 197 default: |
144 return 0; | 198 return FALSE; |
145 } | 199 } |
146 return» FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), FXFT_Get_Face_He
ight(m_Face)); | 200 if (!m_Face) { |
147 } | 201 return FALSE; |
148 int32_t CFPF_SkiaFont::GetItalicAngle() const | 202 } |
149 { | 203 m_dwStyle = dwStyle; |
150 if (!m_Face) { | 204 m_uCharset = uCharset; |
151 return 0; | 205 m_pFontMgr = pFontMgr; |
152 } | 206 m_pFontDes = pFontDes; |
153 TT_Postscript *ttInfo = (TT_Postscript*)FT_Get_Sfnt_Table(m_Face, ft_sfnt_po
st); | 207 m_dwRefCount = 1; |
154 if (ttInfo) { | 208 return TRUE; |
155 return ttInfo->italicAngle; | |
156 } | |
157 return 0; | |
158 } | |
159 FX_DWORD CFPF_SkiaFont::GetFontData(FX_DWORD dwTable, uint8_t* pBuffer, FX_DWORD
dwSize) | |
160 { | |
161 if (!m_Face) { | |
162 return 0; | |
163 } | |
164 FT_ULong ulSize = pdfium::base::checked_cast<FT_ULong>(dwSize); | |
165 if (FXFT_Load_Sfnt_Table(m_Face, dwTable, 0, pBuffer, &ulSize)) { | |
166 return 0; | |
167 } | |
168 return pdfium::base::checked_cast<FX_DWORD>(ulSize); | |
169 } | |
170 FX_BOOL CFPF_SkiaFont::InitFont(CFPF_SkiaFontMgr *pFontMgr, CFPF_SkiaFontDescrip
tor *pFontDes, const CFX_ByteStringC& bsFamily, FX_DWORD dwStyle, uint8_t uChars
et) | |
171 { | |
172 if (!pFontMgr || !pFontDes) { | |
173 return FALSE; | |
174 } | |
175 switch (pFontDes->GetType()) { | |
176 case FPF_SKIAFONTTYPE_Path: { | |
177 CFPF_SkiaPathFont *pFont = (CFPF_SkiaPathFont*)pFontDes; | |
178 m_Face = pFontMgr->GetFontFace(pFont->m_pPath, pFont->m_iFaceInd
ex); | |
179 } | |
180 break; | |
181 case FPF_SKIAFONTTYPE_File: { | |
182 CFPF_SkiaFileFont *pFont = (CFPF_SkiaFileFont*)pFontDes; | |
183 m_Face = pFontMgr->GetFontFace(pFont->m_pFile, pFont->m_iFaceInd
ex); | |
184 } | |
185 break; | |
186 case FPF_SKIAFONTTYPE_Buffer: { | |
187 CFPF_SkiaBufferFont *pFont = (CFPF_SkiaBufferFont*)pFontDes; | |
188 m_Face = pFontMgr->GetFontFace((const uint8_t*)pFont->m_pBuffer,
pFont->m_szBuffer, pFont->m_iFaceIndex); | |
189 } | |
190 break; | |
191 default: | |
192 return FALSE; | |
193 } | |
194 if (!m_Face) { | |
195 return FALSE; | |
196 } | |
197 m_dwStyle = dwStyle; | |
198 m_uCharset = uCharset; | |
199 m_pFontMgr = pFontMgr; | |
200 m_pFontDes = pFontDes; | |
201 m_dwRefCount = 1; | |
202 return TRUE; | |
203 } | 209 } |
204 #endif | 210 #endif |
OLD | NEW |