android_hardware_Camera.cpp revision c4ca420625183a8efa619e06287b47f3d2e72283
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> 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/IMemory.h> 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectusing namespace android; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectenum CallbackMessageID { 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project kShutterCallback = 0, 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project kRawCallback = 1, 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project kJpegCallback = 2, 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project kPreviewCallback = 3, 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project kAutoFocusCallback = 4, 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project kErrorCallback = 5 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstruct fields_t { 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID context; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID surface; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jmethodID post_event; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic fields_t fields; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic Mutex sLock; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 505e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks// provides persistent context for calls from native code to Java 515e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparksclass JNICameraContext: public CameraListener 525e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks{ 535e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparkspublic: 545e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNICameraContext(JNIEnv* env, jobject weak_this, jclass clazz, const sp<Camera>& camera); 555e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks ~JNICameraContext() { release(); } 565e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks virtual void notify(int32_t msgType, int32_t ext1, int32_t ext2); 575e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks virtual void postData(int32_t msgType, const sp<IMemory>& dataPtr); 5859c1a935295cb30c2ba2f759855e89c174b42a07Dave Sparks virtual void postDataTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr); 595e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks sp<Camera> getCamera() { Mutex::Autolock _l(mLock); return mCamera; } 605e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks void release(); 615e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 625e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparksprivate: 635e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks void copyAndPost(JNIEnv* env, const sp<IMemory>& dataPtr, int msgType); 645e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jobject mCameraJObjectWeak; // weak reference to java object 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jclass mCameraJClass; // strong reference to java class 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> mCamera; // strong reference to native object 685e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks Mutex mLock; 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 715e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparkssp<Camera> get_native_camera(JNIEnv *env, jobject thiz, JNICameraContext** pContext) 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Mutex::Autolock _l(sLock); 755e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNICameraContext* context = reinterpret_cast<JNICameraContext*>(env->GetIntField(thiz, fields.context)); 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (context != NULL) { 775e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks camera = context->getCamera(); 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("get_native_camera: context=%p, camera=%p", context, camera.get()); 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) { 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/RuntimeException", "Method called after release()"); 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (pContext != NULL) *pContext = context; 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return camera; 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 885e27115995c4506dddf4f1271effd4fb4c935ad3Dave SparksJNICameraContext::JNICameraContext(JNIEnv* env, jobject weak_this, jclass clazz, const sp<Camera>& camera) 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 905e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks mCameraJObjectWeak = env->NewGlobalRef(weak_this); 915e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks mCameraJClass = (jclass)env->NewGlobalRef(clazz); 925e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks mCamera = camera; 935e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks} 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 955e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparksvoid JNICameraContext::release() 965e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks{ 975e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks LOGV("release"); 985e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks Mutex::Autolock _l(mLock); 995e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNIEnv *env = AndroidRuntime::getJNIEnv(); 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1015e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks if (mCameraJObjectWeak != NULL) { 1025e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks env->DeleteGlobalRef(mCameraJObjectWeak); 1035e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks mCameraJObjectWeak = NULL; 1045e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } 1055e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks if (mCameraJClass != NULL) { 1065e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks env->DeleteGlobalRef(mCameraJClass); 1075e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks mCameraJClass = NULL; 1085e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } 1095e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks mCamera.clear(); 1105e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks} 1115e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 1125e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparksvoid JNICameraContext::notify(int32_t msgType, int32_t ext1, int32_t ext2) 1135e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks{ 1145e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks LOGV("notify"); 1155e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 1165e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks // VM pointer will be NULL if object is released 1175e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks Mutex::Autolock _l(mLock); 1185e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks if (mCameraJObjectWeak == NULL) { 1195e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks LOGW("callback on dead camera object"); 1205e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks return; 1215e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } 1225e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNIEnv *env = AndroidRuntime::getJNIEnv(); 123c62f9bd13327937aa2d2f20b44215397120634c1Dave Sparks env->CallStaticVoidMethod(mCameraJClass, fields.post_event, 124c62f9bd13327937aa2d2f20b44215397120634c1Dave Sparks mCameraJObjectWeak, msgType, ext1, ext2); 1255e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks} 1265e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 1275e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparksvoid JNICameraContext::copyAndPost(JNIEnv* env, const sp<IMemory>& dataPtr, int msgType) 1285e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks{ 1295e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks jbyteArray obj = NULL; 1305e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 1315e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks // allocate Java byte array and copy data 1325e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks if (dataPtr != NULL) { 1335e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks ssize_t offset; 1345e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks size_t size; 1355e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks sp<IMemoryHeap> heap = dataPtr->getMemory(&offset, &size); 1365e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks LOGV("postData: off=%d, size=%d", offset, size); 1375e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks uint8_t *heapBase = (uint8_t*)heap->base(); 1385e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 1395e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks if (heapBase != NULL) { 140c4ca420625183a8efa619e06287b47f3d2e72283Dave Sparks const jbyte* data = reinterpret_cast<const jbyte*>(heapBase + offset); 1415e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks obj = env->NewByteArray(size); 1425e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks if (obj == NULL) { 1435e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks LOGE("Couldn't allocate byte array for JPEG data"); 1445e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks env->ExceptionClear(); 1455e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } else { 146a95f495f75d0516ad48576500f64a3ffea037af8Dave Sparks env->SetByteArrayRegion(obj, 0, size, data); 1475e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } 1485e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } else { 1495e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks LOGE("image heap is NULL"); 1505e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } 1515e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1535e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks // post image data to Java 1545e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks env->CallStaticVoidMethod(mCameraJClass, fields.post_event, 1555e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks mCameraJObjectWeak, msgType, 0, 0, obj); 1565e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks if (obj) { 1575e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks env->DeleteLocalRef(obj); 1585e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks } 1595e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks} 1605e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 1615e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparksvoid JNICameraContext::postData(int32_t msgType, const sp<IMemory>& dataPtr) 1625e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks{ 1635e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks // VM pointer will be NULL if object is released 1645e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks Mutex::Autolock _l(mLock); 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JNIEnv *env = AndroidRuntime::getJNIEnv(); 166d0cbb1a52d1b2b8b04a122501d696938b295e502Dave Sparks if (mCameraJObjectWeak == NULL) { 167d0cbb1a52d1b2b8b04a122501d696938b295e502Dave Sparks LOGW("callback on dead camera object"); 168d0cbb1a52d1b2b8b04a122501d696938b295e502Dave Sparks return; 169d0cbb1a52d1b2b8b04a122501d696938b295e502Dave Sparks } 1705e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks 1715e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks // return data based on callback type 1725e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks switch(msgType) { 1735e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks case CAMERA_MSG_VIDEO_FRAME: 174c62f9bd13327937aa2d2f20b44215397120634c1Dave Sparks // should never happen 1755e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks break; 176c62f9bd13327937aa2d2f20b44215397120634c1Dave Sparks // don't return raw data to Java 1775e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks case CAMERA_MSG_RAW_IMAGE: 1785e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks LOGV("rawCallback"); 1795e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks env->CallStaticVoidMethod(mCameraJClass, fields.post_event, 180c62f9bd13327937aa2d2f20b44215397120634c1Dave Sparks mCameraJObjectWeak, msgType, 0, 0, NULL); 1815e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks break; 1825e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks default: 1835e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks LOGV("dataCallback(%d, %p)", msgType, dataPtr.get()); 184c62f9bd13327937aa2d2f20b44215397120634c1Dave Sparks copyAndPost(env, dataPtr, msgType); 1855e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks break; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18959c1a935295cb30c2ba2f759855e89c174b42a07Dave Sparksvoid JNICameraContext::postDataTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr) 19059c1a935295cb30c2ba2f759855e89c174b42a07Dave Sparks{ 19159c1a935295cb30c2ba2f759855e89c174b42a07Dave Sparks // TODO: plumb up to Java. For now, just drop the timestamp 19259c1a935295cb30c2ba2f759855e89c174b42a07Dave Sparks postData(msgType, dataPtr); 19359c1a935295cb30c2ba2f759855e89c174b42a07Dave Sparks} 19459c1a935295cb30c2ba2f759855e89c174b42a07Dave Sparks 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// connect to camera service 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_native_setup(JNIEnv *env, jobject thiz, jobject weak_this) 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = Camera::connect(); 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == NULL) { 201fa3e5562793c5bd7d4513a9e1a5869e763a47ab5Wu-cheng Li jniThrowException(env, "java/lang/RuntimeException", 202fa3e5562793c5bd7d4513a9e1a5869e763a47ab5Wu-cheng Li "Fail to connect to camera service"); 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // make sure camera hardware is alive 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera->getStatus() != NO_ERROR) { 208ba55b3654b3eb4b9ab340b4635c4400a4c66237cWu-cheng Li jniThrowException(env, "java/lang/RuntimeException", "Camera initialization failed"); 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jclass clazz = env->GetObjectClass(thiz); 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clazz == NULL) { 214ba55b3654b3eb4b9ab340b4635c4400a4c66237cWu-cheng Li jniThrowException(env, "java/lang/RuntimeException", "Can't find android/hardware/Camera"); 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We use a weak reference so the Camera object can be garbage collected. 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The reference is only used as a proxy for callbacks. 2205e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks sp<JNICameraContext> context = new JNICameraContext(env, weak_this, clazz, camera); 2215e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks context->incStrong(thiz); 2225e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks camera->setListener(context); 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // save context in opaque field 2255e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks env->SetIntField(thiz, fields.context, (int)context.get()); 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// disconnect from camera service 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// It's okay to call this when the native camera context is already null. 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// This handles the case where the user has called release() and the 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// finalizer is invoked later. 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_release(JNIEnv *env, jobject thiz) 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 2345e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNICameraContext* context = NULL; 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera; 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Mutex::Autolock _l(sLock); 2385e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks context = reinterpret_cast<JNICameraContext*>(env->GetIntField(thiz, fields.context)); 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we do not attempt to callback on a deleted Java object. 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetIntField(thiz, fields.context, 0); 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // clean up if release has not been called before 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (context != NULL) { 2465e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks camera = context->getCamera(); 2475e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks context->release(); 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("native_release: context=%p camera=%p", context, camera.get()); 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // clear callbacks 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera != NULL) { 2525e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks camera->setPreviewCallbackFlags(FRAME_CALLBACK_FLAG_NOOP); 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project camera->disconnect(); 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // remove context to prevent further Java access 2575e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks context->decStrong(thiz); 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_setPreviewDisplay(JNIEnv *env, jobject thiz, jobject jSurface) 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("setPreviewDisplay"); 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, NULL); 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return; 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 267b8a10fe45657f2dcc50cae8a06805f8438a6937eWu-cheng Li sp<Surface> surface = NULL; 268b8a10fe45657f2dcc50cae8a06805f8438a6937eWu-cheng Li if (jSurface != NULL) { 269b8a10fe45657f2dcc50cae8a06805f8438a6937eWu-cheng Li surface = reinterpret_cast<Surface*>(env->GetIntField(jSurface, fields.surface)); 270b8a10fe45657f2dcc50cae8a06805f8438a6937eWu-cheng Li } 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera->setPreviewDisplay(surface) != NO_ERROR) { 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/io/IOException", "setPreviewDisplay failed"); 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_startPreview(JNIEnv *env, jobject thiz) 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("startPreview"); 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, NULL); 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return; 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera->startPreview() != NO_ERROR) { 283ba55b3654b3eb4b9ab340b4635c4400a4c66237cWu-cheng Li jniThrowException(env, "java/lang/RuntimeException", "startPreview failed"); 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_stopPreview(JNIEnv *env, jobject thiz) 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("stopPreview"); 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> c = get_native_camera(env, thiz, NULL); 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c == 0) return; 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project c->stopPreview(); 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic bool android_hardware_Camera_previewEnabled(JNIEnv *env, jobject thiz) 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("previewEnabled"); 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> c = get_native_camera(env, thiz, NULL); 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c == 0) return false; 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return c->previewEnabled(); 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_setHasPreviewCallback(JNIEnv *env, jobject thiz, jboolean installed, jboolean oneshot) 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Important: Only install preview_callback if the Java code has called 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // setPreviewCallback() with a non-null value, otherwise we'd pay to memcpy 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // each preview frame for nothing. 3115e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNICameraContext* context; 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, &context); 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return; 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int callback_flag; 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (installed) { 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project callback_flag = oneshot ? FRAME_CALLBACK_FLAG_BARCODE_SCANNER : FRAME_CALLBACK_FLAG_CAMERA; 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project callback_flag = FRAME_CALLBACK_FLAG_NOOP; 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3215e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks camera->setPreviewCallbackFlags(callback_flag); 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_autoFocus(JNIEnv *env, jobject thiz) 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("autoFocus"); 3275e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNICameraContext* context; 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> c = get_native_camera(env, thiz, &context); 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c == 0) return; 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c->autoFocus() != NO_ERROR) { 332ba55b3654b3eb4b9ab340b4635c4400a4c66237cWu-cheng Li jniThrowException(env, "java/lang/RuntimeException", "autoFocus failed"); 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_takePicture(JNIEnv *env, jobject thiz) 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("takePicture"); 3395e27115995c4506dddf4f1271effd4fb4c935ad3Dave Sparks JNICameraContext* context; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, &context); 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return; 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera->takePicture() != NO_ERROR) { 344ba55b3654b3eb4b9ab340b4635c4400a4c66237cWu-cheng Li jniThrowException(env, "java/lang/RuntimeException", "takePicture failed"); 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_setParameters(JNIEnv *env, jobject thiz, jstring params) 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("setParameters"); 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, NULL); 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return; 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jchar* str = env->GetStringCritical(params, 0); 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String8 params8; 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params) { 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params8 = String8(str, env->GetStringLength(params)); 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringCritical(params, str); 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera->setParameters(params8) != NO_ERROR) { 362ba55b3654b3eb4b9ab340b4635c4400a4c66237cWu-cheng Li jniThrowException(env, "java/lang/RuntimeException", "setParameters failed"); 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jstring android_hardware_Camera_getParameters(JNIEnv *env, jobject thiz) 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("getParameters"); 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, NULL); 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return 0; 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return env->NewStringUTF(camera->getParameters().string()); 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void android_hardware_Camera_reconnect(JNIEnv *env, jobject thiz) 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("reconnect"); 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, NULL); 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return; 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera->reconnect() != NO_ERROR) { 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/io/IOException", "reconnect failed"); 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jint android_hardware_Camera_lock(JNIEnv *env, jobject thiz) 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("lock"); 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, NULL); 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return INVALID_OPERATION; 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (jint) camera->lock(); 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jint android_hardware_Camera_unlock(JNIEnv *env, jobject thiz) 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("unlock"); 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<Camera> camera = get_native_camera(env, thiz, NULL); 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (camera == 0) return INVALID_OPERATION; 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (jint) camera->unlock(); 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project//------------------------------------------------- 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic JNINativeMethod camMethods[] = { 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "native_setup", 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "(Ljava/lang/Object;)V", 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void*)android_hardware_Camera_native_setup }, 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "native_release", 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()V", 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void*)android_hardware_Camera_release }, 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "setPreviewDisplay", 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "(Landroid/view/Surface;)V", 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_setPreviewDisplay }, 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "startPreview", 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()V", 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_startPreview }, 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "stopPreview", 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()V", 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_stopPreview }, 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "previewEnabled", 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()Z", 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_previewEnabled }, 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "setHasPreviewCallback", 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "(ZZ)V", 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_setHasPreviewCallback }, 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "native_autoFocus", 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()V", 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_autoFocus }, 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "native_takePicture", 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()V", 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_takePicture }, 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "native_setParameters", 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "(Ljava/lang/String;)V", 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_setParameters }, 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "native_getParameters", 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()Ljava/lang/String;", 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void *)android_hardware_Camera_getParameters }, 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "reconnect", 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()V", 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void*)android_hardware_Camera_reconnect }, 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "lock", 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()I", 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void*)android_hardware_Camera_lock }, 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "unlock", 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "()I", 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void*)android_hardware_Camera_unlock }, 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstruct field { 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char *class_name; 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char *field_name; 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char *field_type; 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID *jfield; 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic int find_fields(JNIEnv *env, field *fields, int count) 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project field *f = &fields[i]; 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jclass clazz = env->FindClass(f->class_name); 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clazz == NULL) { 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("Can't find %s", f->class_name); 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID field = env->GetFieldID(clazz, f->field_name, f->field_type); 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (field == NULL) { 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("Can't find %s.%s", f->class_name, f->field_name); 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *(f->jfield) = field; 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// Get all the required offsets in java class and register native functions 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint register_android_hardware_Camera(JNIEnv *env) 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project field fields_to_find[] = { 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "android/hardware/Camera", "mNativeContext", "I", &fields.context }, 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "android/view/Surface", "mSurface", "I", &fields.surface } 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (find_fields(env, fields_to_find, NELEM(fields_to_find)) < 0) 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jclass clazz = env->FindClass("android/hardware/Camera"); 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fields.post_event = env->GetStaticMethodID(clazz, "postEventFromNative", 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "(Ljava/lang/Object;IIILjava/lang/Object;)V"); 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fields.post_event == NULL) { 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("Can't find android/hardware/Camera.postEventFromNative"); 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Register native functions 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return AndroidRuntime::registerNativeMethods(env, "android/hardware/Camera", 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project camMethods, NELEM(camMethods)); 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 505