android_hardware_Camera.cpp revision ffe1cf251a4f8469695b8acfa37270684dc1b70c
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** Copyright 2008, The Android Open Source Project 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** Licensed under the Apache License, Version 2.0 (the "License"); 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** you may not use this file except in compliance with the License. 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** You may obtain a copy of the License at 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** http://www.apache.org/licenses/LICENSE-2.0 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** Unless required by applicable law or agreed to in writing, software 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** distributed under the License is distributed on an "AS IS" BASIS, 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** See the License for the specific language governing permissions and 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** limitations under the License. 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project*/ 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project//#define LOG_NDEBUG 0 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define LOG_TAG "Camera-JNI" 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/Log.h> 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "jni.h" 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "JNIHelp.h" 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "android_runtime/AndroidRuntime.h" 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <ui/Surface.h> 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <ui/Camera.h> 280795272aa226f4e965968a03daddc53ce30b7cdaMathias Agopian#include <binder/IMemory.h> 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectusing namespace android; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstruct fields_t { 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID context; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID surface; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jmethodID post_event; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic fields_t fields; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic Mutex sLock; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 415e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks// provides persistent context for calls from native code to Java 425e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparksclass JNICameraContext: public CameraListener 435e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks{ 445e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparkspublic: 455e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNICameraContext(JNIEnv* env, jobject weak_this, jclass clazz, const sp<Camera>& camera); 465e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks ~JNICameraContext() { release(); } 475e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks virtual void notify(int32_t msgType, int32_t ext1, int32_t ext2); 485e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks virtual void postData(int32_t msgType, const sp<IMemory>& dataPtr); 4959c1a935295cb30c2ba2f759855e89c174b42a07Dave Sparks virtual void postDataTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr); 505e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks sp<Camera> getCamera() { Mutex::Autolock _l(mLock); return mCamera; } 515e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks void release(); 525e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 535e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparksprivate: 545e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks void copyAndPost(JNIEnv* env, const sp<IMemory>& dataPtr, int msgType); 555e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jobject mCameraJObjectWeak; // weak reference to java object 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jclass mCameraJClass; // strong reference to java class 58ffe1cf251a4f8469695b8acfa37270684dc1b70cWu-cheng Li sp<Camera> mCamera; // strong reference to native object 595e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks Mutex mLock; 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 625e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparkssp<Camera> get_native_camera(JNIEnv *env, jobject thiz, JNICameraContext** pContext) 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera; 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Mutex::Autolock _l(sLock); 665e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNICameraContext* context = reinterpret_cast<JNICameraContext*>(env->GetIntField(thiz, fields.context)); 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (context != NULL) { 685e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks camera = context->getCamera(); 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("get_native_camera: context=%p, camera=%p", context, camera.get()); 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) { 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/RuntimeException", "Method called after release()"); 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (pContext != NULL) *pContext = context; 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return camera; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 795e27115995c4506dddf4f1271effd4fb4c935ad3Dave SparksJNICameraContext::JNICameraContext(JNIEnv* env, jobject weak_this, jclass clazz, const sp<Camera>& camera) 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 815e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks mCameraJObjectWeak = env->NewGlobalRef(weak_this); 825e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks mCameraJClass = (jclass)env->NewGlobalRef(clazz); 835e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks mCamera = camera; 845e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks} 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 865e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparksvoid JNICameraContext::release() 875e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks{ 885e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks LOGV("release"); 895e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks Mutex::Autolock _l(mLock); 905e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNIEnv *env = AndroidRuntime::getJNIEnv(); 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 925e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks if (mCameraJObjectWeak != NULL) { 935e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks env->DeleteGlobalRef(mCameraJObjectWeak); 945e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks mCameraJObjectWeak = NULL; 955e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } 965e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks if (mCameraJClass != NULL) { 975e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks env->DeleteGlobalRef(mCameraJClass); 985e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks mCameraJClass = NULL; 995e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } 1005e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks mCamera.clear(); 1015e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks} 1025e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 1035e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparksvoid JNICameraContext::notify(int32_t msgType, int32_t ext1, int32_t ext2) 1045e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks{ 1055e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks LOGV("notify"); 1065e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 1075e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks // VM pointer will be NULL if object is released 1085e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks Mutex::Autolock _l(mLock); 1095e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks if (mCameraJObjectWeak == NULL) { 1105e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks LOGW("callback on dead camera object"); 1115e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks return; 1125e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } 1135e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNIEnv *env = AndroidRuntime::getJNIEnv(); 114c62f9bd13327937aa2d2f20b44215397120634c1Dave Sparks env->CallStaticVoidMethod(mCameraJClass, fields.post_event, 115c62f9bd13327937aa2d2f20b44215397120634c1Dave Sparks mCameraJObjectWeak, msgType, ext1, ext2); 1165e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks} 1175e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 1185e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparksvoid JNICameraContext::copyAndPost(JNIEnv* env, const sp<IMemory>& dataPtr, int msgType) 1195e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks{ 1205e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks jbyteArray obj = NULL; 1215e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 1225e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks // allocate Java byte array and copy data 1235e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks if (dataPtr != NULL) { 1245e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks ssize_t offset; 1255e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks size_t size; 1265e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks sp<IMemoryHeap> heap = dataPtr->getMemory(&offset, &size); 1275e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks LOGV("postData: off=%d, size=%d", offset, size); 1285e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks uint8_t *heapBase = (uint8_t*)heap->base(); 1295e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 1305e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks if (heapBase != NULL) { 131c4ca420625183a8efa619e06287b47f3d2e72283Dave Sparks const jbyte* data = reinterpret_cast<const jbyte*>(heapBase + offset); 1325e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks obj = env->NewByteArray(size); 1335e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks if (obj == NULL) { 1345e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks LOGE("Couldn't allocate byte array for JPEG data"); 1355e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks env->ExceptionClear(); 1365e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } else { 137a95f495f75d0516ad48576500f64a3ffea037af8Dave Sparks env->SetByteArrayRegion(obj, 0, size, data); 1385e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } 1395e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } else { 1405e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks LOGE("image heap is NULL"); 1415e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } 1425e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1445e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks // post image data to Java 1455e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks env->CallStaticVoidMethod(mCameraJClass, fields.post_event, 1465e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks mCameraJObjectWeak, msgType, 0, 0, obj); 1475e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks if (obj) { 1485e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks env->DeleteLocalRef(obj); 1495e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } 1505e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks} 1515e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 1525e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparksvoid JNICameraContext::postData(int32_t msgType, const sp<IMemory>& dataPtr) 1535e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks{ 1545e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks // VM pointer will be NULL if object is released 1555e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks Mutex::Autolock _l(mLock); 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JNIEnv *env = AndroidRuntime::getJNIEnv(); 157d0cbb1a52d1b2b8b04a122501d696938b295e502Dave Sparks if (mCameraJObjectWeak == NULL) { 158d0cbb1a52d1b2b8b04a122501d696938b295e502Dave Sparks LOGW("callback on dead camera object"); 159d0cbb1a52d1b2b8b04a122501d696938b295e502Dave Sparks return; 160d0cbb1a52d1b2b8b04a122501d696938b295e502Dave Sparks } 1615e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 1625e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks // return data based on callback type 1635e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks switch(msgType) { 1645e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks case CAMERA_MSG_VIDEO_FRAME: 165c62f9bd13327937aa2d2f20b44215397120634c1Dave Sparks // should never happen 1665e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks break; 167c62f9bd13327937aa2d2f20b44215397120634c1Dave Sparks // don't return raw data to Java 1685e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks case CAMERA_MSG_RAW_IMAGE: 1695e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks LOGV("rawCallback"); 1705e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks env->CallStaticVoidMethod(mCameraJClass, fields.post_event, 171c62f9bd13327937aa2d2f20b44215397120634c1Dave Sparks mCameraJObjectWeak, msgType, 0, 0, NULL); 1725e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks break; 1735e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks default: 174da57856d749457e495bd860c4ff45aaaf87c9dabDave Sparks // TODO: Change to LOGV 175da57856d749457e495bd860c4ff45aaaf87c9dabDave Sparks LOGD("dataCallback(%d, %p)", msgType, dataPtr.get()); 176c62f9bd13327937aa2d2f20b44215397120634c1Dave Sparks copyAndPost(env, dataPtr, msgType); 1775e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks break; 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18159c1a935295cb30c2ba2f759855e89c174b42a07Dave Sparksvoid JNICameraContext::postDataTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr) 18259c1a935295cb30c2ba2f759855e89c174b42a07Dave Sparks{ 18359c1a935295cb30c2ba2f759855e89c174b42a07Dave Sparks // TODO: plumb up to Java. For now, just drop the timestamp 18459c1a935295cb30c2ba2f759855e89c174b42a07Dave Sparks postData(msgType, dataPtr); 18559c1a935295cb30c2ba2f759855e89c174b42a07Dave Sparks} 18659c1a935295cb30c2ba2f759855e89c174b42a07Dave Sparks 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// connect to camera service 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_native_setup(JNIEnv *env, jobject thiz, jobject weak_this) 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = Camera::connect(); 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == NULL) { 193fa3e5562793c5bd7d4513a9e1a5869e763a47ab5Wu-cheng Li jniThrowException(env, "java/lang/RuntimeException", 194fa3e5562793c5bd7d4513a9e1a5869e763a47ab5Wu-cheng Li "Fail to connect to camera service"); 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // make sure camera hardware is alive 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera->getStatus() != NO_ERROR) { 200ba55b3654b3eb4b9ab340b4635c4400a4c66237cWu-cheng Li jniThrowException(env, "java/lang/RuntimeException", "Camera initialization failed"); 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jclass clazz = env->GetObjectClass(thiz); 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clazz == NULL) { 206ba55b3654b3eb4b9ab340b4635c4400a4c66237cWu-cheng Li jniThrowException(env, "java/lang/RuntimeException", "Can't find android/hardware/Camera"); 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We use a weak reference so the Camera object can be garbage collected. 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The reference is only used as a proxy for callbacks. 2125e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks sp<JNICameraContext> context = new JNICameraContext(env, weak_this, clazz, camera); 2135e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks context->incStrong(thiz); 2145e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks camera->setListener(context); 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // save context in opaque field 2175e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks env->SetIntField(thiz, fields.context, (int)context.get()); 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// disconnect from camera service 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// It's okay to call this when the native camera context is already null. 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// This handles the case where the user has called release() and the 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// finalizer is invoked later. 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_release(JNIEnv *env, jobject thiz) 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 226da57856d749457e495bd860c4ff45aaaf87c9dabDave Sparks // TODO: Change to LOGV 227da57856d749457e495bd860c4ff45aaaf87c9dabDave Sparks LOGD("release camera"); 2285e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNICameraContext* context = NULL; 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera; 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Mutex::Autolock _l(sLock); 2325e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks context = reinterpret_cast<JNICameraContext*>(env->GetIntField(thiz, fields.context)); 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we do not attempt to callback on a deleted Java object. 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetIntField(thiz, fields.context, 0); 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // clean up if release has not been called before 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (context != NULL) { 2405e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks camera = context->getCamera(); 2415e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks context->release(); 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("native_release: context=%p camera=%p", context, camera.get()); 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // clear callbacks 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera != NULL) { 2465e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks camera->setPreviewCallbackFlags(FRAME_CALLBACK_FLAG_NOOP); 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project camera->disconnect(); 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // remove context to prevent further Java access 2515e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks context->decStrong(thiz); 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_setPreviewDisplay(JNIEnv *env, jobject thiz, jobject jSurface) 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("setPreviewDisplay"); 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, NULL); 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return; 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 261b8a10fe45657f2dcc50cae8a06805f8438a6937eWu-cheng Li sp<Surface> surface = NULL; 262b8a10fe45657f2dcc50cae8a06805f8438a6937eWu-cheng Li if (jSurface != NULL) { 263b8a10fe45657f2dcc50cae8a06805f8438a6937eWu-cheng Li surface = reinterpret_cast<Surface*>(env->GetIntField(jSurface, fields.surface)); 264b8a10fe45657f2dcc50cae8a06805f8438a6937eWu-cheng Li } 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera->setPreviewDisplay(surface) != NO_ERROR) { 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/io/IOException", "setPreviewDisplay failed"); 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_startPreview(JNIEnv *env, jobject thiz) 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("startPreview"); 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, NULL); 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return; 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera->startPreview() != NO_ERROR) { 277ba55b3654b3eb4b9ab340b4635c4400a4c66237cWu-cheng Li jniThrowException(env, "java/lang/RuntimeException", "startPreview failed"); 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_stopPreview(JNIEnv *env, jobject thiz) 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("stopPreview"); 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> c = get_native_camera(env, thiz, NULL); 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c == 0) return; 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project c->stopPreview(); 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic bool android_hardware_Camera_previewEnabled(JNIEnv *env, jobject thiz) 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("previewEnabled"); 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> c = get_native_camera(env, thiz, NULL); 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c == 0) return false; 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return c->previewEnabled(); 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_setHasPreviewCallback(JNIEnv *env, jobject thiz, jboolean installed, jboolean oneshot) 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Important: Only install preview_callback if the Java code has called 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // setPreviewCallback() with a non-null value, otherwise we'd pay to memcpy 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // each preview frame for nothing. 3055e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNICameraContext* context; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, &context); 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return; 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int callback_flag; 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (installed) { 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project callback_flag = oneshot ? FRAME_CALLBACK_FLAG_BARCODE_SCANNER : FRAME_CALLBACK_FLAG_CAMERA; 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project callback_flag = FRAME_CALLBACK_FLAG_NOOP; 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3155e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks camera->setPreviewCallbackFlags(callback_flag); 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_autoFocus(JNIEnv *env, jobject thiz) 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("autoFocus"); 3215e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNICameraContext* context; 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> c = get_native_camera(env, thiz, &context); 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c == 0) return; 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c->autoFocus() != NO_ERROR) { 326ba55b3654b3eb4b9ab340b4635c4400a4c66237cWu-cheng Li jniThrowException(env, "java/lang/RuntimeException", "autoFocus failed"); 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 330244f8c26365a303d9dd861bd48a29a4b48578da1Chih-Chung Changstatic void android_hardware_Camera_cancelAutoFocus(JNIEnv *env, jobject thiz) 331244f8c26365a303d9dd861bd48a29a4b48578da1Chih-Chung Chang{ 332244f8c26365a303d9dd861bd48a29a4b48578da1Chih-Chung Chang LOGV("cancelAutoFocus"); 333244f8c26365a303d9dd861bd48a29a4b48578da1Chih-Chung Chang JNICameraContext* context; 334244f8c26365a303d9dd861bd48a29a4b48578da1Chih-Chung Chang sp<Camera> c = get_native_camera(env, thiz, &context); 335244f8c26365a303d9dd861bd48a29a4b48578da1Chih-Chung Chang if (c == 0) return; 336244f8c26365a303d9dd861bd48a29a4b48578da1Chih-Chung Chang 337244f8c26365a303d9dd861bd48a29a4b48578da1Chih-Chung Chang if (c->cancelAutoFocus() != NO_ERROR) { 338244f8c26365a303d9dd861bd48a29a4b48578da1Chih-Chung Chang jniThrowException(env, "java/lang/RuntimeException", "cancelAutoFocus failed"); 339244f8c26365a303d9dd861bd48a29a4b48578da1Chih-Chung Chang } 340244f8c26365a303d9dd861bd48a29a4b48578da1Chih-Chung Chang} 341244f8c26365a303d9dd861bd48a29a4b48578da1Chih-Chung Chang 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_takePicture(JNIEnv *env, jobject thiz) 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("takePicture"); 3455e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNICameraContext* context; 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, &context); 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return; 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera->takePicture() != NO_ERROR) { 350ba55b3654b3eb4b9ab340b4635c4400a4c66237cWu-cheng Li jniThrowException(env, "java/lang/RuntimeException", "takePicture failed"); 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_setParameters(JNIEnv *env, jobject thiz, jstring params) 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("setParameters"); 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, NULL); 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return; 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jchar* str = env->GetStringCritical(params, 0); 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String8 params8; 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params) { 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params8 = String8(str, env->GetStringLength(params)); 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringCritical(params, str); 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera->setParameters(params8) != NO_ERROR) { 368ba55b3654b3eb4b9ab340b4635c4400a4c66237cWu-cheng Li jniThrowException(env, "java/lang/RuntimeException", "setParameters failed"); 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jstring android_hardware_Camera_getParameters(JNIEnv *env, jobject thiz) 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("getParameters"); 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, NULL); 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return 0; 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return env->NewStringUTF(camera->getParameters().string()); 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_reconnect(JNIEnv *env, jobject thiz) 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("reconnect"); 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, NULL); 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return; 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera->reconnect() != NO_ERROR) { 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/io/IOException", "reconnect failed"); 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 394ffe1cf251a4f8469695b8acfa37270684dc1b70cWu-cheng Listatic void android_hardware_Camera_lock(JNIEnv *env, jobject thiz) 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("lock"); 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, NULL); 398ffe1cf251a4f8469695b8acfa37270684dc1b70cWu-cheng Li if (camera == 0) return; 399ffe1cf251a4f8469695b8acfa37270684dc1b70cWu-cheng Li 400ffe1cf251a4f8469695b8acfa37270684dc1b70cWu-cheng Li if (camera->lock() != NO_ERROR) { 401ffe1cf251a4f8469695b8acfa37270684dc1b70cWu-cheng Li jniThrowException(env, "java/lang/RuntimeException", "lock failed"); 402ffe1cf251a4f8469695b8acfa37270684dc1b70cWu-cheng Li } 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 405ffe1cf251a4f8469695b8acfa37270684dc1b70cWu-cheng Listatic void android_hardware_Camera_unlock(JNIEnv *env, jobject thiz) 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("unlock"); 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, NULL); 409ffe1cf251a4f8469695b8acfa37270684dc1b70cWu-cheng Li if (camera == 0) return; 410ffe1cf251a4f8469695b8acfa37270684dc1b70cWu-cheng Li 411ffe1cf251a4f8469695b8acfa37270684dc1b70cWu-cheng Li if (camera->unlock() != NO_ERROR) { 412ffe1cf251a4f8469695b8acfa37270684dc1b70cWu-cheng Li jniThrowException(env, "java/lang/RuntimeException", "unlock failed"); 413ffe1cf251a4f8469695b8acfa37270684dc1b70cWu-cheng Li } 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project//------------------------------------------------- 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic JNINativeMethod camMethods[] = { 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "native_setup", 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "(Ljava/lang/Object;)V", 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void*)android_hardware_Camera_native_setup }, 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "native_release", 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()V", 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void*)android_hardware_Camera_release }, 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "setPreviewDisplay", 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "(Landroid/view/Surface;)V", 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_setPreviewDisplay }, 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "startPreview", 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()V", 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_startPreview }, 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "stopPreview", 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()V", 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_stopPreview }, 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "previewEnabled", 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()Z", 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_previewEnabled }, 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "setHasPreviewCallback", 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "(ZZ)V", 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_setHasPreviewCallback }, 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "native_autoFocus", 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()V", 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_autoFocus }, 443244f8c26365a303d9dd861bd48a29a4b48578da1Chih-Chung Chang { "native_cancelAutoFocus", 444244f8c26365a303d9dd861bd48a29a4b48578da1Chih-Chung Chang "()V", 445244f8c26365a303d9dd861bd48a29a4b48578da1Chih-Chung Chang (void *)android_hardware_Camera_cancelAutoFocus }, 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "native_takePicture", 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()V", 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_takePicture }, 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "native_setParameters", 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "(Ljava/lang/String;)V", 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_setParameters }, 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "native_getParameters", 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()Ljava/lang/String;", 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_getParameters }, 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "reconnect", 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()V", 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void*)android_hardware_Camera_reconnect }, 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "lock", 459ffe1cf251a4f8469695b8acfa37270684dc1b70cWu-cheng Li "()V", 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void*)android_hardware_Camera_lock }, 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "unlock", 462ffe1cf251a4f8469695b8acfa37270684dc1b70cWu-cheng Li "()V", 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void*)android_hardware_Camera_unlock }, 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstruct field { 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char *class_name; 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char *field_name; 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char *field_type; 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID *jfield; 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic int find_fields(JNIEnv *env, field *fields, int count) 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project field *f = &fields[i]; 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jclass clazz = env->FindClass(f->class_name); 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clazz == NULL) { 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("Can't find %s", f->class_name); 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID field = env->GetFieldID(clazz, f->field_name, f->field_type); 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (field == NULL) { 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("Can't find %s.%s", f->class_name, f->field_name); 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *(f->jfield) = field; 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// Get all the required offsets in java class and register native functions 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint register_android_hardware_Camera(JNIEnv *env) 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project field fields_to_find[] = { 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "android/hardware/Camera", "mNativeContext", "I", &fields.context }, 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "android/view/Surface", "mSurface", "I", &fields.surface } 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (find_fields(env, fields_to_find, NELEM(fields_to_find)) < 0) 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jclass clazz = env->FindClass("android/hardware/Camera"); 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fields.post_event = env->GetStaticMethodID(clazz, "postEventFromNative", 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "(Ljava/lang/Object;IIILjava/lang/Object;)V"); 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fields.post_event == NULL) { 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("Can't find android/hardware/Camera.postEventFromNative"); 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Register native functions 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return AndroidRuntime::registerNativeMethods(env, "android/hardware/Camera", 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project camMethods, NELEM(camMethods)); 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 520