Raph Levien | a033630 | 2013-05-22 16:16:59 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | /** |
| 18 | * This is the implementation of the Typeface object. Historically, it has |
| 19 | * just been SkTypeface, but we are migrating to Minikin. For the time |
| 20 | * being, that choice is hidden under the USE_MINIKIN compile-time flag. |
| 21 | */ |
| 22 | |
Raph Levien | 1a73f732 | 2014-01-30 16:06:28 -0800 | [diff] [blame^] | 23 | #define LOG_TAG "TypefaceImpl" |
| 24 | |
| 25 | #include "jni.h" // for jlong, remove when being passed proper type |
| 26 | |
Raph Levien | a033630 | 2013-05-22 16:16:59 -0700 | [diff] [blame] | 27 | #include "SkStream.h" |
| 28 | #include "SkTypeface.h" |
| 29 | |
| 30 | #ifdef USE_MINIKIN |
| 31 | #include <vector> |
| 32 | #include <minikin/FontCollection.h> |
| 33 | #include <minikin/FontFamily.h> |
| 34 | #include <minikin/Layout.h> |
| 35 | #include "MinikinSkia.h" |
| 36 | #endif |
| 37 | |
| 38 | #include "TypefaceImpl.h" |
Leon Scroggins III | b9c58ab | 2013-12-03 15:10:04 -0500 | [diff] [blame] | 39 | #include "Utils.h" |
Raph Levien | a033630 | 2013-05-22 16:16:59 -0700 | [diff] [blame] | 40 | |
| 41 | namespace android { |
| 42 | |
Raph Levien | a033630 | 2013-05-22 16:16:59 -0700 | [diff] [blame] | 43 | #ifdef USE_MINIKIN |
| 44 | |
| 45 | // Any weight greater than or equal to this is considered "bold" for |
| 46 | // legacy API. |
| 47 | static const int kBoldThreshold = 6; |
| 48 | |
| 49 | static FontStyle styleFromSkiaStyle(SkTypeface::Style skiaStyle) { |
| 50 | int weight = (skiaStyle & SkTypeface::kBold) != 0 ? 7 : 4; |
| 51 | bool italic = (skiaStyle & SkTypeface::kItalic) != 0; |
| 52 | return FontStyle(weight, italic); |
| 53 | } |
| 54 | |
| 55 | TypefaceImpl* gDefaultTypeface; |
| 56 | pthread_once_t gDefaultTypefaceOnce = PTHREAD_ONCE_INIT; |
| 57 | |
| 58 | // TODO: this currently builds a font collection from hardcoded paths. |
| 59 | // It will get replaced by an implementation that parses the XML files. |
| 60 | static FontCollection *makeFontCollection() { |
| 61 | std::vector<FontFamily *>typefaces; |
| 62 | const char *fns[] = { |
| 63 | "/system/fonts/Roboto-Regular.ttf", |
| 64 | "/system/fonts/Roboto-Italic.ttf", |
| 65 | "/system/fonts/Roboto-BoldItalic.ttf", |
| 66 | "/system/fonts/Roboto-Light.ttf", |
| 67 | "/system/fonts/Roboto-Thin.ttf", |
| 68 | "/system/fonts/Roboto-Bold.ttf", |
| 69 | "/system/fonts/Roboto-ThinItalic.ttf", |
| 70 | "/system/fonts/Roboto-LightItalic.ttf" |
| 71 | }; |
| 72 | |
| 73 | FontFamily *family = new FontFamily(); |
| 74 | for (size_t i = 0; i < sizeof(fns)/sizeof(fns[0]); i++) { |
| 75 | const char *fn = fns[i]; |
| 76 | SkTypeface *skFace = SkTypeface::CreateFromFile(fn); |
| 77 | MinikinFont *font = new MinikinFontSkia(skFace); |
| 78 | family->addFont(font); |
| 79 | } |
| 80 | typefaces.push_back(family); |
| 81 | |
| 82 | family = new FontFamily(); |
| 83 | const char *fn = "/system/fonts/NotoSansDevanagari-Regular.ttf"; |
| 84 | SkTypeface *skFace = SkTypeface::CreateFromFile(fn); |
| 85 | MinikinFont *font = new MinikinFontSkia(skFace); |
| 86 | family->addFont(font); |
| 87 | typefaces.push_back(family); |
| 88 | |
| 89 | return new FontCollection(typefaces); |
| 90 | } |
| 91 | |
| 92 | static void getDefaultTypefaceOnce() { |
| 93 | Layout::init(); |
| 94 | gDefaultTypeface = new TypefaceImpl; |
| 95 | gDefaultTypeface->fFontCollection = makeFontCollection(); |
| 96 | gDefaultTypeface->fStyle = FontStyle(); |
| 97 | } |
| 98 | |
| 99 | TypefaceImpl* TypefaceImpl_resolveDefault(TypefaceImpl* src) { |
| 100 | if (src == NULL) { |
| 101 | pthread_once(&gDefaultTypefaceOnce, getDefaultTypefaceOnce); |
| 102 | return gDefaultTypeface; |
| 103 | } else { |
| 104 | return src; |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | TypefaceImpl* TypefaceImpl_createFromTypeface(TypefaceImpl* src, SkTypeface::Style style) { |
| 109 | TypefaceImpl* resolvedFace = TypefaceImpl_resolveDefault(src); |
| 110 | TypefaceImpl* result = new TypefaceImpl; |
| 111 | if (result != 0) { |
| 112 | result->fFontCollection = resolvedFace->fFontCollection; |
| 113 | result->fStyle = styleFromSkiaStyle(style); |
| 114 | } |
| 115 | return result; |
| 116 | } |
| 117 | |
| 118 | static TypefaceImpl* createFromSkTypeface(SkTypeface* typeface) { |
| 119 | MinikinFont* minikinFont = new MinikinFontSkia(typeface); |
| 120 | std::vector<FontFamily *> typefaces; |
| 121 | FontFamily* family = new FontFamily(); |
| 122 | family->addFont(minikinFont); |
| 123 | typefaces.push_back(family); |
| 124 | TypefaceImpl* result = new TypefaceImpl; |
| 125 | result->fFontCollection = new FontCollection(typefaces); |
| 126 | result->fStyle = FontStyle(); // TODO: improve |
| 127 | return result; |
| 128 | } |
| 129 | |
| 130 | TypefaceImpl* TypefaceImpl_createFromName(const char* name, SkTypeface::Style style) { |
| 131 | // TODO: should create a font collection with all styles corresponding to |
| 132 | // the name |
| 133 | SkTypeface* face = SkTypeface::CreateFromName(name, style); |
| 134 | return createFromSkTypeface(face); |
| 135 | } |
| 136 | |
| 137 | TypefaceImpl* TypefaceImpl_createFromFile(const char* filename) { |
| 138 | SkTypeface* face = SkTypeface::CreateFromFile(filename); |
| 139 | return createFromSkTypeface(face); |
| 140 | } |
| 141 | |
| 142 | TypefaceImpl* TypefaceImpl_createFromAsset(Asset* asset) { |
Leon Scroggins III | b9c58ab | 2013-12-03 15:10:04 -0500 | [diff] [blame] | 143 | SkStream* stream = new AssetStreamAdaptor(asset, |
| 144 | AssetStreamAdaptor::kYes_OwnAsset, |
| 145 | AssetStreamAdaptor::kYes_HasMemoryBase); |
Raph Levien | a033630 | 2013-05-22 16:16:59 -0700 | [diff] [blame] | 146 | SkTypeface* face = SkTypeface::CreateFromStream(stream); |
| 147 | // SkTypeFace::CreateFromStream calls ref() on the stream, so we |
| 148 | // need to unref it here or it won't be freed later on |
| 149 | stream->unref(); |
| 150 | return createFromSkTypeface(face); |
| 151 | } |
| 152 | |
Raph Levien | 1a73f732 | 2014-01-30 16:06:28 -0800 | [diff] [blame^] | 153 | TypefaceImpl* TypefaceImpl_createFromFamilies(const jlong* families, size_t size) { |
| 154 | ALOGD("createFromFamilies size=%d", size); |
| 155 | std::vector<FontFamily *>familyVec; |
| 156 | for (size_t i = 0; i < size; i++) { |
| 157 | FontFamily* family = reinterpret_cast<FontFamily*>(families[i]); |
| 158 | familyVec.push_back(family); |
| 159 | } |
| 160 | TypefaceImpl* result = new TypefaceImpl; |
| 161 | result->fFontCollection = new FontCollection(familyVec); |
| 162 | result->fStyle = FontStyle(); // TODO: improve |
| 163 | return result; |
| 164 | } |
| 165 | |
Raph Levien | a033630 | 2013-05-22 16:16:59 -0700 | [diff] [blame] | 166 | void TypefaceImpl_unref(TypefaceImpl* face) { |
| 167 | delete face; |
| 168 | } |
| 169 | |
| 170 | int TypefaceImpl_getStyle(TypefaceImpl* face) { |
| 171 | FontStyle style = face->fStyle; |
| 172 | int result = style.getItalic() ? SkTypeface::kItalic : 0; |
| 173 | if (style.getWeight() >= kBoldThreshold) { |
| 174 | result |= SkTypeface::kBold; |
| 175 | } |
| 176 | return result; |
| 177 | } |
| 178 | |
| 179 | #else // USE_MINIKIN |
| 180 | |
| 181 | /* Just use SkTypeface instead. */ |
| 182 | |
| 183 | typedef SkTypeface TypefaceImpl; |
| 184 | |
| 185 | TypefaceImpl* TypefaceImpl_createFromTypeface(TypefaceImpl* src, SkTypeface::Style style) { |
| 186 | return SkTypeface::CreateFromTypeface(src, style); |
| 187 | } |
| 188 | |
| 189 | TypefaceImpl* TypefaceImpl_createFromName(const char* name, SkTypeface::Style style) { |
| 190 | return SkTypeface::CreateFromName(name, style); |
| 191 | } |
| 192 | |
| 193 | TypefaceImpl* TypefaceImpl_createFromFile(const char* filename) { |
| 194 | return SkTypeface::CreateFromFile(filename); |
| 195 | } |
| 196 | |
| 197 | TypefaceImpl* TypefaceImpl_createFromAsset(Asset* asset) { |
Leon Scroggins III | b9c58ab | 2013-12-03 15:10:04 -0500 | [diff] [blame] | 198 | SkStream* stream = new AssetStreamAdaptor(asset, |
| 199 | AssetStreamAdaptor::kYes_OwnAsset, |
| 200 | AssetStreamAdaptor::kYes_HasMemoryBase); |
Raph Levien | a033630 | 2013-05-22 16:16:59 -0700 | [diff] [blame] | 201 | SkTypeface* face = SkTypeface::CreateFromStream(stream); |
| 202 | // SkTypeFace::CreateFromStream calls ref() on the stream, so we |
| 203 | // need to unref it here or it won't be freed later on |
| 204 | stream->unref(); |
| 205 | |
| 206 | return face; |
| 207 | } |
| 208 | |
Raph Levien | 1a73f732 | 2014-01-30 16:06:28 -0800 | [diff] [blame^] | 209 | TypefaceImpl* TypefaceImpl_createFromFamilies(const jlong* families, size_t size) { |
| 210 | // Should never be called in non-Minikin builds |
| 211 | return 0; |
| 212 | } |
| 213 | |
Raph Levien | a033630 | 2013-05-22 16:16:59 -0700 | [diff] [blame] | 214 | void TypefaceImpl_unref(TypefaceImpl* face) { |
| 215 | SkSafeUnref(face); |
| 216 | } |
| 217 | |
| 218 | int TypefaceImpl_getStyle(TypefaceImpl* face) { |
| 219 | return face->style(); |
| 220 | } |
| 221 | |
| 222 | #endif // USE_MINIKIN |
| 223 | |
| 224 | } |