Remove dependencies on headers outside UI module

This includes AndroidRuntime and core_jni_helper.h

Bug: 137655431
Test: CtsUiRenderingTestCases
Change-Id: If3d26f41eaf4981505ee47634097f3645fd563fd

1 files changed, 191 insertions, 0 deletions

diff --git a/libs/hwui/apex/LayoutlibLoader.cpp b/libs/hwui/apex/LayoutlibLoader.cpp
new file mode 100644
index 000000000000..4bbf1214bdcf
--- /dev/null
+++ b/libs/hwui/apex/LayoutlibLoader.cpp
@@ -0,0 +1,191 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+#include "graphics_jni_helpers.h"
+
+#include <GraphicsJNI.h>
+#include <SkGraphics.h>
+
+#include <sstream>
+#include <iostream>
+#include <unicode/putil.h>
+#include <unordered_map>
+#include <vector>
+
+using namespace std;
+
+/*
+ * This is responsible for setting up the JNI environment for communication between
+ * the Java and native parts of layoutlib, including registering native methods.
+ * This is mostly achieved by copying the way it is done in the platform
+ * (see AndroidRuntime.cpp).
+ */
+
+static JavaVM* javaVM;
+
+extern int register_android_graphics_Bitmap(JNIEnv*);
+extern int register_android_graphics_BitmapFactory(JNIEnv*);
+extern int register_android_graphics_ByteBufferStreamAdaptor(JNIEnv* env);
+extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env);
+extern int register_android_graphics_Graphics(JNIEnv* env);
+extern int register_android_graphics_ImageDecoder(JNIEnv*);
+extern int register_android_graphics_Interpolator(JNIEnv* env);
+extern int register_android_graphics_MaskFilter(JNIEnv* env);
+extern int register_android_graphics_NinePatch(JNIEnv*);
+extern int register_android_graphics_PathEffect(JNIEnv* env);
+extern int register_android_graphics_Shader(JNIEnv* env);
+extern int register_android_graphics_Typeface(JNIEnv* env);
+
+namespace android {
+
+extern int register_android_graphics_Canvas(JNIEnv* env);
+extern int register_android_graphics_ColorFilter(JNIEnv* env);
+extern int register_android_graphics_ColorSpace(JNIEnv* env);
+extern int register_android_graphics_DrawFilter(JNIEnv* env);
+extern int register_android_graphics_FontFamily(JNIEnv* env);
+extern int register_android_graphics_Matrix(JNIEnv* env);
+extern int register_android_graphics_Paint(JNIEnv* env);
+extern int register_android_graphics_Path(JNIEnv* env);
+extern int register_android_graphics_PathMeasure(JNIEnv* env);
+extern int register_android_graphics_Picture(JNIEnv* env);
+//extern int register_android_graphics_Region(JNIEnv* env);
+extern int register_android_graphics_animation_NativeInterpolatorFactory(JNIEnv* env);
+extern int register_android_graphics_animation_RenderNodeAnimator(JNIEnv* env);
+extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env);
+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_text_LineBreaker(JNIEnv* env);
+extern int register_android_graphics_text_MeasuredText(JNIEnv* env);
+extern int register_android_util_PathParser(JNIEnv* env);
+extern int register_android_view_RenderNode(JNIEnv* env);
+extern int register_android_view_DisplayListCanvas(JNIEnv* env);
+
+#define REG_JNI(name)      { name }
+struct RegJNIRec {
+    int (*mProc)(JNIEnv*);
+};
+
+// Map of all possible class names to register to their corresponding JNI registration function pointer
+// The actual list of registered classes will be determined at runtime via the 'native_classes' System property
+static const std::unordered_map<std::string, RegJNIRec> gRegJNIMap = {
+        {"android.graphics.Bitmap", REG_JNI(register_android_graphics_Bitmap)},
+        {"android.graphics.BitmapFactory", REG_JNI(register_android_graphics_BitmapFactory)},
+        {"android.graphics.ByteBufferStreamAdaptor",
+         REG_JNI(register_android_graphics_ByteBufferStreamAdaptor)},
+        {"android.graphics.Canvas", REG_JNI(register_android_graphics_Canvas)},
+        {"android.graphics.RenderNode", REG_JNI(register_android_view_RenderNode)},
+        {"android.graphics.ColorFilter", REG_JNI(register_android_graphics_ColorFilter)},
+        {"android.graphics.ColorSpace", REG_JNI(register_android_graphics_ColorSpace)},
+        {"android.graphics.CreateJavaOutputStreamAdaptor",
+         REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor)},
+        {"android.graphics.DrawFilter", REG_JNI(register_android_graphics_DrawFilter)},
+        {"android.graphics.FontFamily", REG_JNI(register_android_graphics_FontFamily)},
+        {"android.graphics.Graphics", REG_JNI(register_android_graphics_Graphics)},
+        {"android.graphics.ImageDecoder", REG_JNI(register_android_graphics_ImageDecoder)},
+        {"android.graphics.Interpolator", REG_JNI(register_android_graphics_Interpolator)},
+        {"android.graphics.MaskFilter", REG_JNI(register_android_graphics_MaskFilter)},
+        {"android.graphics.Matrix", REG_JNI(register_android_graphics_Matrix)},
+        {"android.graphics.NinePatch", REG_JNI(register_android_graphics_NinePatch)},
+        {"android.graphics.Paint", REG_JNI(register_android_graphics_Paint)},
+        {"android.graphics.Path", REG_JNI(register_android_graphics_Path)},
+        {"android.graphics.PathEffect", REG_JNI(register_android_graphics_PathEffect)},
+        {"android.graphics.PathMeasure", REG_JNI(register_android_graphics_PathMeasure)},
+        {"android.graphics.Picture", REG_JNI(register_android_graphics_Picture)},
+        {"android.graphics.RecordingCanvas", REG_JNI(register_android_view_DisplayListCanvas)},
+//        {"android.graphics.Region", REG_JNI(register_android_graphics_Region)},
+        {"android.graphics.Shader", REG_JNI(register_android_graphics_Shader)},
+        {"android.graphics.Typeface", REG_JNI(register_android_graphics_Typeface)},
+        {"android.graphics.animation.NativeInterpolatorFactory",
+         REG_JNI(register_android_graphics_animation_NativeInterpolatorFactory)},
+        {"android.graphics.animation.RenderNodeAnimator",
+         REG_JNI(register_android_graphics_animation_RenderNodeAnimator)},
+        {"android.graphics.drawable.AnimatedVectorDrawable",
+         REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable)},
+        {"android.graphics.drawable.VectorDrawable",
+         REG_JNI(register_android_graphics_drawable_VectorDrawable)},
+        {"android.graphics.fonts.Font", REG_JNI(register_android_graphics_fonts_Font)},
+        {"android.graphics.fonts.FontFamily", REG_JNI(register_android_graphics_fonts_FontFamily)},
+        {"android.graphics.text.LineBreaker", REG_JNI(register_android_graphics_text_LineBreaker)},
+        {"android.graphics.text.MeasuredText",
+         REG_JNI(register_android_graphics_text_MeasuredText)},
+        {"android.util.PathParser", REG_JNI(register_android_util_PathParser)},
+};
+
+static int register_jni_procs(const std::unordered_map<std::string, RegJNIRec>& jniRegMap,
+        const vector<string>& classesToRegister, JNIEnv* env) {
+
+    for (const string& className : classesToRegister) {
+        if (jniRegMap.at(className).mProc(env) < 0) {
+            return -1;
+        }
+    }
+    return 0;
+}
+
+static vector<string> parseCsv(const string& csvString) {
+    vector<string>   result;
+    istringstream stream(csvString);
+    string segment;
+    while(getline(stream, segment, ','))
+    {
+        result.push_back(segment);
+    }
+    return result;
+}
+
+static vector<string> parseCsv(JNIEnv* env, jstring csvJString) {
+    const char* charArray = env->GetStringUTFChars(csvJString, 0);
+    string csvString(charArray);
+    vector<string> result = parseCsv(csvString);
+    env->ReleaseStringUTFChars(csvJString, charArray);
+    return result;
+}
+
+} // namespace android
+
+using namespace android;
+
+void init_android_graphics() {
+    SkGraphics::Init();
+}
+
+int register_android_graphics_classes(JNIEnv *env) {
+    JavaVM* vm = nullptr;
+    env->GetJavaVM(&vm);
+    GraphicsJNI::setJavaVM(vm);
+
+    // Configuration is stored as java System properties.
+    // Get a reference to System.getProperty
+    jclass system = FindClassOrDie(env, "java/lang/System");
+    jmethodID getPropertyMethod = GetStaticMethodIDOrDie(env, system, "getProperty",
+                                                         "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;");
+
+    // Get the names of classes that need to register their native methods
+    auto nativesClassesJString =
+            (jstring) env->CallStaticObjectMethod(system,
+                                                  getPropertyMethod, env->NewStringUTF("native_classes"),
+                                                  env->NewStringUTF(""));
+    vector<string> classesToRegister = parseCsv(env, nativesClassesJString);
+
+    if (register_jni_procs(gRegJNIMap, classesToRegister, env) < 0) {
+        return JNI_ERR;
+    }
+
+    return 0;
+}
+
+void zygote_preload_graphics() { }