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2014/10/16 ¤W¤È 08:14:08
android Programming Glossary: getdirectbufferaddressHow to cache bitmaps into native memory http://stackoverflow.com/questions/17900732/how-to-cache-bitmaps-into-native-memory obj jobject handle JniBitmap jniBitmap JniBitmap env GetDirectBufferAddress handle if jniBitmap _storedBitmapPixels NULL return delete jniBitmap.. obj jobject handle JniBitmap jniBitmap JniBitmap env GetDirectBufferAddress handle if jniBitmap _storedBitmapPixels NULL LOGD no bitmap..
JNI bitmap operations , for helping to avoid OOM when using large images [closed] http://stackoverflow.com/questions/18250951/jni-bitmap-operations-for-helping-to-avoid-oom-when-using-large-images right uint32_t bottom JniBitmap jniBitmap JniBitmap env GetDirectBufferAddress handle if jniBitmap _storedBitmapPixels NULL return uint32_t.. obj jobject handle JniBitmap jniBitmap JniBitmap env GetDirectBufferAddress handle if jniBitmap _storedBitmapPixels NULL return uint32_t.. obj jobject handle JniBitmap jniBitmap JniBitmap env GetDirectBufferAddress handle if jniBitmap _storedBitmapPixels NULL return delete jniBitmap..
ByteBuffer not releasing memory http://stackoverflow.com/questions/5060307/bytebuffer-not-releasing-memory JNIEnv env jobject globalRef void buffer env GetDirectBufferAddress globalRef free buffer env DeleteGlobalRef globalRef I then get.. calls free on the direct buffer address returned by env GetDirectBufferAddress env directBuffer deletes the global ref with env DeleteGlobalRef..
How to cache bitmaps into native memory http://stackoverflow.com/questions/17900732/how-to-cache-bitmaps-into-native-memory JNIEnv env jobject obj jobject handle JniBitmap jniBitmap JniBitmap env GetDirectBufferAddress handle if jniBitmap _storedBitmapPixels NULL return delete jniBitmap _storedBitmapPixels jniBitmap _storedBitmapPixels NULL.. JNIEnv env jobject obj jobject handle JniBitmap jniBitmap JniBitmap env GetDirectBufferAddress handle if jniBitmap _storedBitmapPixels NULL LOGD no bitmap data was stored. returning null... return NULL creating a new..
JNI bitmap operations , for helping to avoid OOM when using large images [closed] http://stackoverflow.com/questions/18250951/jni-bitmap-operations-for-helping-to-avoid-oom-when-using-large-images jobject obj jobject handle uint32_t left uint32_t top uint32_t right uint32_t bottom JniBitmap jniBitmap JniBitmap env GetDirectBufferAddress handle if jniBitmap _storedBitmapPixels NULL return uint32_t previousData jniBitmap _storedBitmapPixels uint32_t oldWidth.. JNIEnv env jobject obj jobject handle JniBitmap jniBitmap JniBitmap env GetDirectBufferAddress handle if jniBitmap _storedBitmapPixels NULL return uint32_t previousData jniBitmap _storedBitmapPixels AndroidBitmapInfo.. JNIEnv env jobject obj jobject handle JniBitmap jniBitmap JniBitmap env GetDirectBufferAddress handle if jniBitmap _storedBitmapPixels NULL return delete jniBitmap _storedBitmapPixels jniBitmap _storedBitmapPixels NULL..
ByteBuffer not releasing memory http://stackoverflow.com/questions/5060307/bytebuffer-not-releasing-memory return globalRef JNIEXPORT void JNICALL Java_com_foo_bar_freeNative JNIEnv env jobject globalRef void buffer env GetDirectBufferAddress globalRef free buffer env DeleteGlobalRef globalRef I then get my ByteBuffer on the JAVA side with ByteBuffer myBuf allocNative.. a native void disposeNative ByteBuffer buffer entry point that calls free on the direct buffer address returned by env GetDirectBufferAddress env directBuffer deletes the global ref with env DeleteGlobalRef env directBuffer Once you call disposeNative on the buffer..
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