Create Font sets from native fonts

Bug: 173752727
Test: atest SystemFontsTest (with enabling LAZY flag)
Change-Id: Ic4e405a68e355919ee6493e51528fd44d79cd48e
diff --git a/libs/hwui/Android.bp b/libs/hwui/Android.bp
index cd53217..1ff1978 100644
--- a/libs/hwui/Android.bp
+++ b/libs/hwui/Android.bp
@@ -333,6 +333,7 @@
         "jni/YuvToJpegEncoder.cpp",
         "jni/fonts/Font.cpp",
         "jni/fonts/FontFamily.cpp",
+        "jni/fonts/NativeFont.cpp",
         "jni/text/LineBreaker.cpp",
         "jni/text/MeasuredText.cpp",
         "jni/text/TextShaper.cpp",
diff --git a/libs/hwui/apex/jni_runtime.cpp b/libs/hwui/apex/jni_runtime.cpp
index e1f5abd7..0fad2d5 100644
--- a/libs/hwui/apex/jni_runtime.cpp
+++ b/libs/hwui/apex/jni_runtime.cpp
@@ -69,6 +69,7 @@
 extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env);
 extern int register_android_graphics_fonts_Font(JNIEnv* env);
 extern int register_android_graphics_fonts_FontFamily(JNIEnv* env);
+extern int register_android_graphics_fonts_NativeFont(JNIEnv* env);
 extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
 extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
 extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
@@ -135,6 +136,7 @@
     REG_JNI(register_android_graphics_drawable_VectorDrawable),
     REG_JNI(register_android_graphics_fonts_Font),
     REG_JNI(register_android_graphics_fonts_FontFamily),
+    REG_JNI(register_android_graphics_fonts_NativeFont),
     REG_JNI(register_android_graphics_pdf_PdfDocument),
     REG_JNI(register_android_graphics_pdf_PdfEditor),
     REG_JNI(register_android_graphics_pdf_PdfRenderer),
diff --git a/libs/hwui/jni/fonts/Font.cpp b/libs/hwui/jni/fonts/Font.cpp
index f0c7793..f612bce 100644
--- a/libs/hwui/jni/fonts/Font.cpp
+++ b/libs/hwui/jni/fonts/Font.cpp
@@ -187,38 +187,6 @@
 }
 
 // Critical Native
-static jlong Font_getFontInfo(CRITICAL_JNI_PARAMS_COMMA jlong fontHandle) {
-    const minikin::Font* font = reinterpret_cast<minikin::Font*>(fontHandle);
-    MinikinFontSkia* minikinSkia = static_cast<MinikinFontSkia*>(font->typeface().get());
-
-    uint64_t result = font->style().weight();
-    result |= font->style().slant() == minikin::FontStyle::Slant::ITALIC ? 0x10000 : 0x00000;
-    result |= ((static_cast<uint64_t>(minikinSkia->GetFontIndex())) << 32);
-    result |= ((static_cast<uint64_t>(minikinSkia->GetAxes().size())) << 48);
-    return result;
-}
-
-// Critical Native
-static jlong Font_getAxisInfo(CRITICAL_JNI_PARAMS_COMMA jlong fontHandle, jint index) {
-    const minikin::Font* font = reinterpret_cast<minikin::Font*>(fontHandle);
-    MinikinFontSkia* minikinSkia = static_cast<MinikinFontSkia*>(font->typeface().get());
-    const minikin::FontVariation& var = minikinSkia->GetAxes().at(index);
-    uint32_t floatBinary = *reinterpret_cast<const uint32_t*>(&var.value);
-    return (static_cast<uint64_t>(var.axisTag) << 32) | static_cast<uint64_t>(floatBinary);
-}
-
-// FastNative
-static jstring Font_getFontPath(JNIEnv* env, jobject, jlong fontHandle) {
-    const minikin::Font* font = reinterpret_cast<minikin::Font*>(fontHandle);
-    MinikinFontSkia* minikinSkia = static_cast<MinikinFontSkia*>(font->typeface().get());
-    const std::string& filePath = minikinSkia->getFilePath();
-    if (filePath.empty()) {
-        return nullptr;
-    }
-    return env->NewStringUTF(filePath.c_str());
-}
-
-// Critical Native
 static jlong Font_getNativeFontPtr(CRITICAL_JNI_PARAMS_COMMA jlong fontHandle) {
     FontWrapper* font = reinterpret_cast<FontWrapper*>(fontHandle);
     return reinterpret_cast<jlong>(font->font.get());
@@ -276,9 +244,6 @@
 static const JNINativeMethod gFontMethods[] = {
     { "nGetGlyphBounds", "(JIJLandroid/graphics/RectF;)F", (void*) Font_getGlyphBounds },
     { "nGetFontMetrics", "(JJLandroid/graphics/Paint$FontMetrics;)F", (void*) Font_getFontMetrics },
-    { "nGetFontInfo", "(J)J", (void*) Font_getFontInfo },
-    { "nGetAxisInfo", "(JI)J", (void*) Font_getAxisInfo },
-    { "nGetFontPath", "(J)Ljava/lang/String;", (void*) Font_getFontPath },
     { "nGetNativeFontPtr", "(J)J", (void*) Font_getNativeFontPtr },
     { "nGetFontBufferAddress", "(J)J", (void*) Font_GetBufferAddress },
 };
diff --git a/libs/hwui/jni/fonts/NativeFont.cpp b/libs/hwui/jni/fonts/NativeFont.cpp
new file mode 100644
index 0000000..c5c5d46
--- /dev/null
+++ b/libs/hwui/jni/fonts/NativeFont.cpp
@@ -0,0 +1,125 @@
+/*
+ * 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 "Font.h"
+#include "SkData.h"
+#include "SkFont.h"
+#include "SkFontMetrics.h"
+#include "SkFontMgr.h"
+#include "SkRefCnt.h"
+#include "SkTypeface.h"
+#include "GraphicsJNI.h"
+#include <nativehelper/ScopedUtfChars.h>
+#include "Utils.h"
+#include "FontUtils.h"
+
+#include <hwui/MinikinSkia.h>
+#include <hwui/Paint.h>
+#include <hwui/Typeface.h>
+#include <minikin/FontFamily.h>
+#include <minikin/LocaleList.h>
+#include <ui/FatVector.h>
+
+#include <memory>
+
+namespace android {
+
+// Critical Native
+static jint NativeFont_getFamilyCount(CRITICAL_JNI_PARAMS_COMMA jlong typefaceHandle) {
+    Typeface* tf = reinterpret_cast<Typeface*>(typefaceHandle);
+    return tf->fFontCollection->getFamilies().size();
+}
+
+// Critical Native
+static jlong NativeFont_getFamily(CRITICAL_JNI_PARAMS_COMMA jlong typefaceHandle, jint index) {
+    Typeface* tf = reinterpret_cast<Typeface*>(typefaceHandle);
+    return reinterpret_cast<jlong>(tf->fFontCollection->getFamilies()[index].get());
+
+}
+
+// Fast Native
+static jstring NativeFont_getLocaleList(JNIEnv* env, jobject, jlong familyHandle) {
+    minikin::FontFamily* family = reinterpret_cast<minikin::FontFamily*>(familyHandle);
+    uint32_t localeListId = family->localeListId();
+    return env->NewStringUTF(minikin::getLocaleString(localeListId).c_str());
+}
+
+// Critical Native
+static jint NativeFont_getFontCount(CRITICAL_JNI_PARAMS_COMMA jlong familyHandle) {
+    minikin::FontFamily* family = reinterpret_cast<minikin::FontFamily*>(familyHandle);
+    return family->getNumFonts();
+}
+
+// Critical Native
+static jlong NativeFont_getFont(CRITICAL_JNI_PARAMS_COMMA jlong familyHandle, jint index) {
+    minikin::FontFamily* family = reinterpret_cast<minikin::FontFamily*>(familyHandle);
+    return reinterpret_cast<jlong>(family->getFont(index));
+}
+
+// Critical Native
+static jlong NativeFont_getFontInfo(CRITICAL_JNI_PARAMS_COMMA jlong fontHandle) {
+    const minikin::Font* font = reinterpret_cast<minikin::Font*>(fontHandle);
+    MinikinFontSkia* minikinSkia = static_cast<MinikinFontSkia*>(font->typeface().get());
+
+    uint64_t result = font->style().weight();
+    result |= font->style().slant() == minikin::FontStyle::Slant::ITALIC ? 0x10000 : 0x00000;
+    result |= ((static_cast<uint64_t>(minikinSkia->GetFontIndex())) << 32);
+    result |= ((static_cast<uint64_t>(minikinSkia->GetAxes().size())) << 48);
+    return result;
+}
+
+// Critical Native
+static jlong NativeFont_getAxisInfo(CRITICAL_JNI_PARAMS_COMMA jlong fontHandle, jint index) {
+    const minikin::Font* font = reinterpret_cast<minikin::Font*>(fontHandle);
+    MinikinFontSkia* minikinSkia = static_cast<MinikinFontSkia*>(font->typeface().get());
+    const minikin::FontVariation& var = minikinSkia->GetAxes().at(index);
+    uint32_t floatBinary = *reinterpret_cast<const uint32_t*>(&var.value);
+    return (static_cast<uint64_t>(var.axisTag) << 32) | static_cast<uint64_t>(floatBinary);
+}
+
+// FastNative
+static jstring NativeFont_getFontPath(JNIEnv* env, jobject, jlong fontHandle) {
+    const minikin::Font* font = reinterpret_cast<minikin::Font*>(fontHandle);
+    MinikinFontSkia* minikinSkia = static_cast<MinikinFontSkia*>(font->typeface().get());
+    const std::string& filePath = minikinSkia->getFilePath();
+    if (filePath.empty()) {
+        return nullptr;
+    }
+    return env->NewStringUTF(filePath.c_str());
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+static const JNINativeMethod gNativeFontMethods[] = {
+    { "nGetFamilyCount", "(J)I", (void*) NativeFont_getFamilyCount },
+    { "nGetFamily", "(JI)J", (void*) NativeFont_getFamily },
+    { "nGetLocaleList", "(J)Ljava/lang/String;", (void*) NativeFont_getLocaleList },
+    { "nGetFontCount", "(J)I", (void*) NativeFont_getFontCount },
+    { "nGetFont", "(JI)J", (void*) NativeFont_getFont },
+    { "nGetFontInfo", "(J)J", (void*) NativeFont_getFontInfo },
+    { "nGetAxisInfo", "(JI)J", (void*) NativeFont_getAxisInfo },
+    { "nGetFontPath", "(J)Ljava/lang/String;", (void*) NativeFont_getFontPath },
+};
+
+int register_android_graphics_fonts_NativeFont(JNIEnv* env) {
+    return RegisterMethodsOrDie(env, "android/graphics/fonts/NativeFont", gNativeFontMethods,
+            NELEM(gNativeFontMethods));
+}
+
+}  // namespace android