am 91c8111d: Merge "Register jni objs in CreateJavaOutputStreamAdaptor" into klp-dev (a818f0fa) · Commits · e / os / android_frameworks_base

core/jni/AndroidRuntime.cpp

+2 −0

Original line number	Diff line number	Diff line
		@@ -53,6 +53,7 @@ extern int register_android_graphics_Bitmap(JNIEnv*);
		extern int register_android_graphics_BitmapFactory(JNIEnv*);
		extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*);
		extern int register_android_graphics_Camera(JNIEnv* env);
		extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env);
		extern int register_android_graphics_Graphics(JNIEnv* env);
		extern int register_android_graphics_Interpolator(JNIEnv* env);
		extern int register_android_graphics_LayerRasterizer(JNIEnv*);
		@@ -1137,6 +1138,7 @@ static const RegJNIRec gRegJNI[] = {
		REG_JNI(register_android_graphics_BitmapFactory),
		REG_JNI(register_android_graphics_BitmapRegionDecoder),
		REG_JNI(register_android_graphics_Camera),
		REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
		REG_JNI(register_android_graphics_Canvas),
		REG_JNI(register_android_graphics_ColorFilter),
		REG_JNI(register_android_graphics_DrawFilter),

core/jni/android/graphics/CreateJavaOutputStreamAdaptor.cpp

+59 −66

Original line number	Diff line number	Diff line
		@@ -7,12 +7,6 @@
		#include "Utils.h"
		#include <androidfw/Asset.h>

		#define RETURN_NULL_IF_NULL(value) \
		do { if (!(value)) { SkASSERT(0); return NULL; } } while (false)

		#define RETURN_ZERO_IF_NULL(value) \
		do { if (!(value)) { SkASSERT(0); return 0; } } while (false)

		static jmethodID gInputStream_resetMethodID;
		static jmethodID gInputStream_markMethodID;
		static jmethodID gInputStream_markSupportedMethodID;
		@@ -161,32 +155,6 @@ private:

		SkStream* CreateJavaInputStreamAdaptor(JNIEnv* env, jobject stream,
		jbyteArray storage) {
		static bool gInited;

		if (!gInited) {
		jclass inputStream_Clazz = env->FindClass("java/io/InputStream");
		RETURN_NULL_IF_NULL(inputStream_Clazz);

		gInputStream_resetMethodID = env->GetMethodID(inputStream_Clazz,
		"reset", "()V");
		gInputStream_markMethodID = env->GetMethodID(inputStream_Clazz,
		"mark", "(I)V");
		gInputStream_markSupportedMethodID = env->GetMethodID(inputStream_Clazz,
		"markSupported", "()Z");
		gInputStream_readMethodID = env->GetMethodID(inputStream_Clazz,
		"read", "([BII)I");
		gInputStream_skipMethodID = env->GetMethodID(inputStream_Clazz,
		"skip", "(J)J");

		RETURN_NULL_IF_NULL(gInputStream_resetMethodID);
		RETURN_NULL_IF_NULL(gInputStream_markMethodID);
		RETURN_NULL_IF_NULL(gInputStream_markSupportedMethodID);
		RETURN_NULL_IF_NULL(gInputStream_readMethodID);
		RETURN_NULL_IF_NULL(gInputStream_skipMethodID);

		gInited = true;
		}

		return new JavaInputStreamAdaptor(env, stream, storage);
		}

		@@ -263,27 +231,19 @@ private:
		const size_t fLength;
		};

		static jclass gByteArrayInputStream_Clazz;
		static jfieldID gCountField;
		static jfieldID gPosField;

		/**
		* If jstream is a ByteArrayInputStream, return its remaining length. Otherwise
		* return 0.
		*/
		static size_t get_length_from_byte_array_stream(JNIEnv* env, jobject jstream) {
		static jclass byteArrayInputStream_Clazz;
		static jfieldID countField;
		static jfieldID posField;

		byteArrayInputStream_Clazz = env->FindClass("java/io/ByteArrayInputStream");
		RETURN_ZERO_IF_NULL(byteArrayInputStream_Clazz);

		countField = env->GetFieldID(byteArrayInputStream_Clazz, "count", "I");
		RETURN_ZERO_IF_NULL(byteArrayInputStream_Clazz);
		posField = env->GetFieldID(byteArrayInputStream_Clazz, "pos", "I");
		RETURN_ZERO_IF_NULL(byteArrayInputStream_Clazz);

		if (env->IsInstanceOf(jstream, byteArrayInputStream_Clazz)) {
		if (env->IsInstanceOf(jstream, gByteArrayInputStream_Clazz)) {
		// Return the remaining length, to keep the same behavior of using the rest of the
		// stream.
		return env->GetIntField(jstream, countField) - env->GetIntField(jstream, posField);
		return env->GetIntField(jstream, gCountField) - env->GetIntField(jstream, gPosField);
		}
		return 0;
		}
		@@ -321,21 +281,15 @@ SkStreamRewindable* GetRewindableStream(JNIEnv* env, jobject stream,
		return adaptor_to_mem_stream(adaptor.get());
		}

		android::AssetStreamAdaptor* CheckForAssetStream(JNIEnv* env, jobject jstream) {
		static jclass assetInputStream_Clazz;
		static jmethodID getAssetIntMethodID;

		assetInputStream_Clazz = env->FindClass("android/content/res/AssetManager$AssetInputStream");
		RETURN_NULL_IF_NULL(assetInputStream_Clazz);

		getAssetIntMethodID = env->GetMethodID(assetInputStream_Clazz, "getAssetInt", "()I");
		RETURN_NULL_IF_NULL(getAssetIntMethodID);
		static jclass gAssetInputStream_Clazz;
		static jmethodID gGetAssetIntMethodID;

		if (!env->IsInstanceOf(jstream, assetInputStream_Clazz)) {
		android::AssetStreamAdaptor* CheckForAssetStream(JNIEnv* env, jobject jstream) {
		if (!env->IsInstanceOf(jstream, gAssetInputStream_Clazz)) {
		return NULL;
		}

		jint jasset = env->CallIntMethod(jstream, getAssetIntMethodID);
		jint jasset = env->CallIntMethod(jstream, gGetAssetIntMethodID);
		android::Asset* a = reinterpret_cast<android::Asset*>(jasset);
		if (NULL == a) {
		jniThrowNullPointerException(env, "NULL native asset");
		@@ -406,18 +360,57 @@ SkWStream* CreateJavaOutputStreamAdaptor(JNIEnv* env, jobject stream,
		static bool gInited;

		if (!gInited) {
		jclass outputStream_Clazz = env->FindClass("java/io/OutputStream");
		RETURN_NULL_IF_NULL(outputStream_Clazz);

		gOutputStream_writeMethodID = env->GetMethodID(outputStream_Clazz,
		"write", "([BII)V");
		RETURN_NULL_IF_NULL(gOutputStream_writeMethodID);
		gOutputStream_flushMethodID = env->GetMethodID(outputStream_Clazz,
		"flush", "()V");
		RETURN_NULL_IF_NULL(gOutputStream_flushMethodID);

		gInited = true;
		}

		return new SkJavaOutputStream(env, stream, storage);
		}

		static jclass findClassCheck(JNIEnv* env, const char classname[]) {
		jclass clazz = env->FindClass(classname);
		SkASSERT(!env->ExceptionCheck());
		return clazz;
		}

		static jfieldID getFieldIDCheck(JNIEnv* env, jclass clazz,
		const char fieldname[], const char type[]) {
		jfieldID id = env->GetFieldID(clazz, fieldname, type);
		SkASSERT(!env->ExceptionCheck());
		return id;
		}

		static jmethodID getMethodIDCheck(JNIEnv* env, jclass clazz,
		const char methodname[], const char type[]) {
		jmethodID id = env->GetMethodID(clazz, methodname, type);
		SkASSERT(!env->ExceptionCheck());
		return id;
		}

		int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env) {
		jclass inputStream_Clazz = findClassCheck(env, "java/io/InputStream");
		gInputStream_resetMethodID = getMethodIDCheck(env, inputStream_Clazz, "reset", "()V");
		gInputStream_markMethodID = getMethodIDCheck(env, inputStream_Clazz, "mark", "(I)V");
		gInputStream_markSupportedMethodID = getMethodIDCheck(env, inputStream_Clazz, "markSupported", "()Z");
		gInputStream_readMethodID = getMethodIDCheck(env, inputStream_Clazz, "read", "([BII)I");
		gInputStream_skipMethodID = getMethodIDCheck(env, inputStream_Clazz, "skip", "(J)J");

		gByteArrayInputStream_Clazz = findClassCheck(env, "java/io/ByteArrayInputStream");
		// Ref gByteArrayInputStream_Clazz so we can continue to refer to it when
		// calling IsInstance.
		gByteArrayInputStream_Clazz = (jclass) env->NewGlobalRef(gByteArrayInputStream_Clazz);
		gCountField = getFieldIDCheck(env, gByteArrayInputStream_Clazz, "count", "I");
		gPosField = getFieldIDCheck(env, gByteArrayInputStream_Clazz, "pos", "I");

		gAssetInputStream_Clazz = findClassCheck(env, "android/content/res/AssetManager$AssetInputStream");
		// Ref gAssetInputStream_Clazz so we can continue to refer to it when
		// calling IsInstance.
		gAssetInputStream_Clazz = (jclass) env->NewGlobalRef(gAssetInputStream_Clazz);
		gGetAssetIntMethodID = getMethodIDCheck(env, gAssetInputStream_Clazz, "getAssetInt", "()I");

		jclass outputStream_Clazz = findClassCheck(env, "java/io/OutputStream");
		gOutputStream_writeMethodID = getMethodIDCheck(env, outputStream_Clazz, "write", "([BII)V");
		gOutputStream_flushMethodID = getMethodIDCheck(env, outputStream_Clazz, "flush", "()V");

		return 0;
		}