| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define LOG_TAG "Minikin" |
| |
| #include "JNIHelp.h" |
| #include <core_jni_helpers.h> |
| |
| #include "SkData.h" |
| #include "SkFontMgr.h" |
| #include "SkRefCnt.h" |
| #include "SkTypeface.h" |
| #include "GraphicsJNI.h" |
| #include <ScopedPrimitiveArray.h> |
| #include <ScopedUtfChars.h> |
| #include <android_runtime/AndroidRuntime.h> |
| #include <android_runtime/android_util_AssetManager.h> |
| #include <androidfw/AssetManager.h> |
| #include "Utils.h" |
| |
| #include <hwui/MinikinSkia.h> |
| #include <hwui/Typeface.h> |
| #include <minikin/FontFamily.h> |
| |
| #include <memory> |
| |
| namespace android { |
| |
| static jlong FontFamily_create(JNIEnv* env, jobject clazz, jstring lang, jint variant) { |
| if (lang == NULL) { |
| return (jlong)new FontFamily(variant); |
| } |
| ScopedUtfChars str(env, lang); |
| uint32_t langId = FontStyle::registerLanguageList(str.c_str()); |
| return (jlong)new FontFamily(langId, variant); |
| } |
| |
| static void FontFamily_unref(JNIEnv* env, jobject clazz, jlong familyPtr) { |
| FontFamily* fontFamily = reinterpret_cast<FontFamily*>(familyPtr); |
| fontFamily->Unref(); |
| } |
| |
| static jboolean addSkTypeface(FontFamily* family, SkTypeface* face) { |
| MinikinFont* minikinFont = new MinikinFontSkia(face); |
| bool result = family->addFont(minikinFont); |
| minikinFont->Unref(); |
| return result; |
| } |
| |
| static jboolean FontFamily_addFont(JNIEnv* env, jobject clazz, jlong familyPtr, jstring path, |
| jint ttcIndex) { |
| NPE_CHECK_RETURN_ZERO(env, path); |
| ScopedUtfChars str(env, path); |
| SkTypeface* face = SkTypeface::CreateFromFile(str.c_str(), ttcIndex); |
| if (face == NULL) { |
| ALOGE("addFont failed to create font %s", str.c_str()); |
| return false; |
| } |
| FontFamily* fontFamily = reinterpret_cast<FontFamily*>(familyPtr); |
| return addSkTypeface(fontFamily, face); |
| } |
| |
| static struct { |
| jmethodID mGet; |
| jmethodID mSize; |
| } gListClassInfo; |
| |
| static struct { |
| jfieldID mTag; |
| jfieldID mStyleValue; |
| } gAxisClassInfo; |
| |
| static void release_global_ref(const void* /*data*/, void* context) { |
| JNIEnv* env = AndroidRuntime::getJNIEnv(); |
| bool needToAttach = (env == NULL); |
| if (needToAttach) { |
| JavaVMAttachArgs args; |
| args.version = JNI_VERSION_1_4; |
| args.name = "release_font_data"; |
| args.group = NULL; |
| jint result = AndroidRuntime::getJavaVM()->AttachCurrentThread(&env, &args); |
| if (result != JNI_OK) { |
| ALOGE("failed to attach to thread to release global ref."); |
| return; |
| } |
| } |
| |
| jobject obj = reinterpret_cast<jobject>(context); |
| env->DeleteGlobalRef(obj); |
| |
| if (needToAttach) { |
| AndroidRuntime::getJavaVM()->DetachCurrentThread(); |
| } |
| } |
| |
| static jboolean FontFamily_addFontWeightStyle(JNIEnv* env, jobject clazz, jlong familyPtr, |
| jobject font, jint ttcIndex, jobject listOfAxis, jint weight, jboolean isItalic) { |
| NPE_CHECK_RETURN_ZERO(env, font); |
| |
| // Declare axis native type. |
| std::unique_ptr<SkFontMgr::FontParameters::Axis[]> skiaAxes; |
| int skiaAxesLength = 0; |
| if (listOfAxis) { |
| jint listSize = env->CallIntMethod(listOfAxis, gListClassInfo.mSize); |
| |
| skiaAxes.reset(new SkFontMgr::FontParameters::Axis[listSize]); |
| skiaAxesLength = listSize; |
| for (jint i = 0; i < listSize; ++i) { |
| jobject axisObject = env->CallObjectMethod(listOfAxis, gListClassInfo.mGet, i); |
| if (!axisObject) { |
| skiaAxes[i].fTag = 0; |
| skiaAxes[i].fStyleValue = 0; |
| continue; |
| } |
| |
| jint tag = env->GetIntField(axisObject, gAxisClassInfo.mTag); |
| jfloat stylevalue = env->GetFloatField(axisObject, gAxisClassInfo.mStyleValue); |
| skiaAxes[i].fTag = tag; |
| skiaAxes[i].fStyleValue = SkFloatToScalar(stylevalue); |
| } |
| } |
| |
| void* fontPtr = env->GetDirectBufferAddress(font); |
| if (fontPtr == NULL) { |
| ALOGE("addFont failed to create font, buffer invalid"); |
| return false; |
| } |
| jlong fontSize = env->GetDirectBufferCapacity(font); |
| if (fontSize < 0) { |
| ALOGE("addFont failed to create font, buffer size invalid"); |
| return false; |
| } |
| jobject fontRef = MakeGlobalRefOrDie(env, font); |
| SkAutoTUnref<SkData> data(SkData::NewWithProc(fontPtr, fontSize, |
| release_global_ref, reinterpret_cast<void*>(fontRef))); |
| std::unique_ptr<SkStreamAsset> fontData(new SkMemoryStream(data)); |
| |
| SkFontMgr::FontParameters params; |
| params.setCollectionIndex(ttcIndex); |
| params.setAxes(skiaAxes.get(), skiaAxesLength); |
| |
| SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault()); |
| SkTypeface* face = fm->createFromStream(fontData.release(), params); |
| if (face == NULL) { |
| ALOGE("addFont failed to create font, invalid request"); |
| return false; |
| } |
| FontFamily* fontFamily = reinterpret_cast<FontFamily*>(familyPtr); |
| MinikinFont* minikinFont = new MinikinFontSkia(face); |
| fontFamily->addFont(minikinFont, FontStyle(weight / 100, isItalic)); |
| minikinFont->Unref(); |
| return true; |
| } |
| |
| static void releaseAsset(const void* ptr, void* context) { |
| delete static_cast<Asset*>(context); |
| } |
| |
| static jboolean FontFamily_addFontFromAsset(JNIEnv* env, jobject, jlong familyPtr, |
| jobject jassetMgr, jstring jpath) { |
| NPE_CHECK_RETURN_ZERO(env, jassetMgr); |
| NPE_CHECK_RETURN_ZERO(env, jpath); |
| |
| AssetManager* mgr = assetManagerForJavaObject(env, jassetMgr); |
| if (NULL == mgr) { |
| return false; |
| } |
| |
| ScopedUtfChars str(env, jpath); |
| Asset* asset = mgr->open(str.c_str(), Asset::ACCESS_BUFFER); |
| if (NULL == asset) { |
| return false; |
| } |
| |
| const void* buf = asset->getBuffer(false); |
| if (NULL == buf) { |
| delete asset; |
| return false; |
| } |
| |
| SkAutoTUnref<SkData> data(SkData::NewWithProc(buf, asset->getLength(), releaseAsset, asset)); |
| SkMemoryStream* stream = new SkMemoryStream(data); |
| // CreateFromStream takes ownership of stream. |
| SkTypeface* face = SkTypeface::CreateFromStream(stream); |
| if (face == NULL) { |
| ALOGE("addFontFromAsset failed to create font %s", str.c_str()); |
| return false; |
| } |
| FontFamily* fontFamily = reinterpret_cast<FontFamily*>(familyPtr); |
| return addSkTypeface(fontFamily, face); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static const JNINativeMethod gFontFamilyMethods[] = { |
| { "nCreateFamily", "(Ljava/lang/String;I)J", (void*)FontFamily_create }, |
| { "nUnrefFamily", "(J)V", (void*)FontFamily_unref }, |
| { "nAddFont", "(JLjava/lang/String;I)Z", (void*)FontFamily_addFont }, |
| { "nAddFontWeightStyle", "(JLjava/nio/ByteBuffer;ILjava/util/List;IZ)Z", |
| (void*)FontFamily_addFontWeightStyle }, |
| { "nAddFontFromAsset", "(JLandroid/content/res/AssetManager;Ljava/lang/String;)Z", |
| (void*)FontFamily_addFontFromAsset }, |
| }; |
| |
| int register_android_graphics_FontFamily(JNIEnv* env) |
| { |
| int err = RegisterMethodsOrDie(env, "android/graphics/FontFamily", gFontFamilyMethods, |
| NELEM(gFontFamilyMethods)); |
| |
| jclass listClass = FindClassOrDie(env, "java/util/List"); |
| gListClassInfo.mGet = GetMethodIDOrDie(env, listClass, "get", "(I)Ljava/lang/Object;"); |
| gListClassInfo.mSize = GetMethodIDOrDie(env, listClass, "size", "()I"); |
| |
| jclass axisClass = FindClassOrDie(env, "android/graphics/FontListParser$Axis"); |
| gAxisClassInfo.mTag = GetFieldIDOrDie(env, axisClass, "tag", "I"); |
| gAxisClassInfo.mStyleValue = GetFieldIDOrDie(env, axisClass, "styleValue", "F"); |
| |
| return err; |
| } |
| |
| } |