1 files changed, 101 insertions, 0 deletions
diff --git a/libs/hwui/jni/fonts/FontFamily.cpp b/libs/hwui/jni/fonts/FontFamily.cpp
new file mode 100644
index 000000000000..df619d9f1406
--- /dev/null
+++ b/libs/hwui/jni/fonts/FontFamily.cpp
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2018 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.
+ */
+
+#undef LOG_TAG
+#define LOG_TAG "Minikin"
+
+#include "graphics_jni_helpers.h"
+#include <nativehelper/ScopedUtfChars.h>
+
+#include "FontUtils.h"
+
+#include <minikin/FontFamily.h>
+#include <minikin/LocaleList.h>
+
+#include <memory>
+
+namespace android {
+
+struct NativeFamilyBuilder {
+    std::vector<minikin::Font> fonts;
+};
+
+static inline NativeFamilyBuilder* toBuilder(jlong ptr) {
+    return reinterpret_cast<NativeFamilyBuilder*>(ptr);
+}
+
+static inline FontWrapper* toFontWrapper(jlong ptr) {
+    return reinterpret_cast<FontWrapper*>(ptr);
+}
+
+static void releaseFontFamily(jlong family) {
+    delete reinterpret_cast<FontFamilyWrapper*>(family);
+}
+
+// Regular JNI
+static jlong FontFamily_Builder_initBuilder(JNIEnv*, jobject) {
+    return reinterpret_cast<jlong>(new NativeFamilyBuilder());
+}
+
+// Critical Native
+static void FontFamily_Builder_addFont(CRITICAL_JNI_PARAMS_COMMA jlong builderPtr, jlong fontPtr) {
+    toBuilder(builderPtr)->fonts.push_back(toFontWrapper(fontPtr)->font);
+}
+
+// Regular JNI
+static jlong FontFamily_Builder_build(JNIEnv* env, jobject clazz, jlong builderPtr,
+            jstring langTags, jint variant, jboolean isCustomFallback) {
+    std::unique_ptr<NativeFamilyBuilder> builder(toBuilder(builderPtr));
+    uint32_t localeId;
+    if (langTags == nullptr) {
+        localeId = minikin::registerLocaleList("");
+    } else {
+        ScopedUtfChars str(env, langTags);
+        localeId = minikin::registerLocaleList(str.c_str());
+    }
+    std::shared_ptr<minikin::FontFamily> family = std::make_shared<minikin::FontFamily>(
+            localeId, static_cast<minikin::FamilyVariant>(variant), std::move(builder->fonts),
+            isCustomFallback);
+    if (family->getCoverage().length() == 0) {
+        // No coverage means minikin rejected given font for some reasons.
+        jniThrowException(env, "java/lang/IllegalArgumentException",
+                          "Failed to create internal object. maybe invalid font data");
+        return 0;
+    }
+    return reinterpret_cast<jlong>(new FontFamilyWrapper(std::move(family)));
+}
+
+// CriticalNative
+static jlong FontFamily_Builder_GetReleaseFunc(CRITICAL_JNI_PARAMS) {
+    return reinterpret_cast<jlong>(releaseFontFamily);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+static const JNINativeMethod gFontFamilyBuilderMethods[] = {
+    { "nInitBuilder", "()J", (void*) FontFamily_Builder_initBuilder },
+    { "nAddFont", "(JJ)V", (void*) FontFamily_Builder_addFont },
+    { "nBuild", "(JLjava/lang/String;IZ)J", (void*) FontFamily_Builder_build },
+
+    { "nGetReleaseNativeFamily", "()J", (void*) FontFamily_Builder_GetReleaseFunc },
+};
+
+int register_android_graphics_fonts_FontFamily(JNIEnv* env) {
+    return RegisterMethodsOrDie(env, "android/graphics/fonts/FontFamily$Builder",
+            gFontFamilyBuilderMethods, NELEM(gFontFamilyBuilderMethods));
+}
+
+}