1 /*
2 * Copyright (C) 2014 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 #define LOG_TAG "Minikin"
18
19 #include "JNIHelp.h"
20 #include <android_runtime/AndroidRuntime.h>
21
22 #include "SkTypeface.h"
23 #include "GraphicsJNI.h"
24 #include <ScopedPrimitiveArray.h>
25 #include <ScopedUtfChars.h>
26 #include <android_runtime/android_util_AssetManager.h>
27 #include <androidfw/AssetManager.h>
28 #include "Utils.h"
29
30 #include "TypefaceImpl.h"
31 #include <minikin/FontFamily.h>
32 #include "MinikinSkia.h"
33
34 namespace android {
35
FontFamily_create(JNIEnv * env,jobject clazz,jstring lang,jint variant)36 static jlong FontFamily_create(JNIEnv* env, jobject clazz, jstring lang, jint variant) {
37 FontLanguage fontLanguage;
38 if (lang != NULL) {
39 ScopedUtfChars str(env, lang);
40 fontLanguage = FontLanguage(str.c_str(), str.size());
41 }
42 return (jlong)new FontFamily(fontLanguage, variant);
43 }
44
FontFamily_unref(JNIEnv * env,jobject clazz,jlong familyPtr)45 static void FontFamily_unref(JNIEnv* env, jobject clazz, jlong familyPtr) {
46 FontFamily* fontFamily = reinterpret_cast<FontFamily*>(familyPtr);
47 fontFamily->Unref();
48 }
49
addSkTypeface(FontFamily * family,SkTypeface * face)50 static jboolean addSkTypeface(FontFamily* family, SkTypeface* face) {
51 MinikinFont* minikinFont = new MinikinFontSkia(face);
52 bool result = family->addFont(minikinFont);
53 minikinFont->Unref();
54 return result;
55 }
56
FontFamily_addFont(JNIEnv * env,jobject clazz,jlong familyPtr,jstring path)57 static jboolean FontFamily_addFont(JNIEnv* env, jobject clazz, jlong familyPtr, jstring path) {
58 NPE_CHECK_RETURN_ZERO(env, path);
59 ScopedUtfChars str(env, path);
60 SkTypeface* face = SkTypeface::CreateFromFile(str.c_str());
61 if (face == NULL) {
62 ALOGE("addFont failed to create font %s", str.c_str());
63 return false;
64 }
65 FontFamily* fontFamily = reinterpret_cast<FontFamily*>(familyPtr);
66 return addSkTypeface(fontFamily, face);
67 }
68
FontFamily_addFontWeightStyle(JNIEnv * env,jobject clazz,jlong familyPtr,jstring path,jint weight,jboolean isItalic)69 static jboolean FontFamily_addFontWeightStyle(JNIEnv* env, jobject clazz, jlong familyPtr,
70 jstring path, jint weight, jboolean isItalic) {
71 NPE_CHECK_RETURN_ZERO(env, path);
72 ScopedUtfChars str(env, path);
73 SkTypeface* face = SkTypeface::CreateFromFile(str.c_str());
74 if (face == NULL) {
75 ALOGE("addFont failed to create font %s", str.c_str());
76 return false;
77 }
78 FontFamily* fontFamily = reinterpret_cast<FontFamily*>(familyPtr);
79 MinikinFont* minikinFont = new MinikinFontSkia(face);
80 fontFamily->addFont(minikinFont, FontStyle(weight / 100, isItalic));
81 minikinFont->Unref();
82 return true;
83 }
84
FontFamily_addFontFromAsset(JNIEnv * env,jobject,jlong familyPtr,jobject jassetMgr,jstring jpath)85 static jboolean FontFamily_addFontFromAsset(JNIEnv* env, jobject, jlong familyPtr,
86 jobject jassetMgr, jstring jpath) {
87 NPE_CHECK_RETURN_ZERO(env, jassetMgr);
88 NPE_CHECK_RETURN_ZERO(env, jpath);
89
90 AssetManager* mgr = assetManagerForJavaObject(env, jassetMgr);
91 if (NULL == mgr) {
92 return false;
93 }
94
95 ScopedUtfChars str(env, jpath);
96 Asset* asset = mgr->open(str.c_str(), Asset::ACCESS_BUFFER);
97 if (NULL == asset) {
98 return false;
99 }
100
101 SkStream* stream = new AssetStreamAdaptor(asset,
102 AssetStreamAdaptor::kYes_OwnAsset,
103 AssetStreamAdaptor::kYes_HasMemoryBase);
104 SkTypeface* face = SkTypeface::CreateFromStream(stream);
105 // Note: SkTypeface::CreateFromStream holds its own reference to the stream
106 stream->unref();
107 if (face == NULL) {
108 ALOGE("addFontFromAsset failed to create font %s", str.c_str());
109 return false;
110 }
111 FontFamily* fontFamily = reinterpret_cast<FontFamily*>(familyPtr);
112 return addSkTypeface(fontFamily, face);
113 }
114
115 ///////////////////////////////////////////////////////////////////////////////
116
117 static JNINativeMethod gFontFamilyMethods[] = {
118 { "nCreateFamily", "(Ljava/lang/String;I)J", (void*)FontFamily_create },
119 { "nUnrefFamily", "(J)V", (void*)FontFamily_unref },
120 { "nAddFont", "(JLjava/lang/String;)Z", (void*)FontFamily_addFont },
121 { "nAddFontWeightStyle", "(JLjava/lang/String;IZ)Z", (void*)FontFamily_addFontWeightStyle },
122 { "nAddFontFromAsset", "(JLandroid/content/res/AssetManager;Ljava/lang/String;)Z",
123 (void*)FontFamily_addFontFromAsset },
124 };
125
register_android_graphics_FontFamily(JNIEnv * env)126 int register_android_graphics_FontFamily(JNIEnv* env)
127 {
128 return android::AndroidRuntime::registerNativeMethods(env,
129 "android/graphics/FontFamily",
130 gFontFamilyMethods, NELEM(gFontFamilyMethods));
131 }
132
133 }
134