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2014/10/16 ¤W¤È 08:20:18
android Programming Glossary: newbitmappixelsRotating a bitmap using JNI & NDK http://stackoverflow.com/questions/14398670/rotating-a-bitmap-using-jni-ndk failed error d ret return NULL uint32_t newBitmapPixels uint32_t bitmapPixels int whereToPut 0 for int x info.width.. y info.height y uint32_t pixel tempPixels info.width y x newBitmapPixels whereToPut pixel AndroidBitmap_unlockPixels env newBitmap freeing..
How to cache bitmaps into native memory http://stackoverflow.com/questions/17900732/how-to-cache-bitmaps-into-native-memory failed error d ret return NULL uint32_t newBitmapPixels uint32_t bitmapPixels int pixelsCount jniBitmap _bitmapInfo.height.. _bitmapInfo.height jniBitmap _bitmapInfo.width memcpy newBitmapPixels jniBitmap _storedBitmapPixels sizeof uint32_t pixelsCount AndroidBitmap_unlockPixels..
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 uint32_t newWidth right left newHeight bottom top uint32_t newBitmapPixels new uint32_t newWidth newHeight uint32_t whereToGet previousData.. previousData left top oldWidth uint32_t whereToPut newBitmapPixels for int y top y bottom y memcpy whereToPut whereToGet sizeof.. new one delete previousData jniBitmap _storedBitmapPixels newBitmapPixels jniBitmap _bitmapInfo.width newWidth jniBitmap _bitmapInfo.height..
Rotating a bitmap using JNI & NDK http://stackoverflow.com/questions/14398670/rotating-a-bitmap-using-jni-ndk env newBitmap bitmapPixels 0 LOGE AndroidBitmap_lockPixels failed error d ret return NULL uint32_t newBitmapPixels uint32_t bitmapPixels int whereToPut 0 for int x info.width 1 x 0 x for int y 0 y info.height y uint32_t pixel tempPixels.. int whereToPut 0 for int x info.width 1 x 0 x for int y 0 y info.height y uint32_t pixel tempPixels info.width y x newBitmapPixels whereToPut pixel AndroidBitmap_unlockPixels env newBitmap freeing the native memory used to store the pixels delete tempPixels..
How to cache bitmaps into native memory http://stackoverflow.com/questions/17900732/how-to-cache-bitmaps-into-native-memory env newBitmap bitmapPixels 0 LOGE AndroidBitmap_lockPixels failed error d ret return NULL uint32_t newBitmapPixels uint32_t bitmapPixels int pixelsCount jniBitmap _bitmapInfo.height jniBitmap _bitmapInfo.width memcpy newBitmapPixels jniBitmap.. newBitmapPixels uint32_t bitmapPixels int pixelsCount jniBitmap _bitmapInfo.height jniBitmap _bitmapInfo.width memcpy newBitmapPixels jniBitmap _storedBitmapPixels sizeof uint32_t pixelsCount AndroidBitmap_unlockPixels env newBitmap LOGD returning the 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 uint32_t oldWidth jniBitmap _bitmapInfo.width uint32_t newWidth right left newHeight bottom top uint32_t newBitmapPixels new uint32_t newWidth newHeight uint32_t whereToGet previousData left top oldWidth uint32_t whereToPut newBitmapPixels for.. newBitmapPixels new uint32_t newWidth newHeight uint32_t whereToGet previousData left top oldWidth uint32_t whereToPut newBitmapPixels for int y top y bottom y memcpy whereToPut whereToGet sizeof uint32_t newWidth whereToGet oldWidth whereToPut newWidth done.. whereToPut newWidth done copying so replace old data with new one delete previousData jniBitmap _storedBitmapPixels newBitmapPixels jniBitmap _bitmapInfo.width newWidth jniBitmap _bitmapInfo.height newHeight rotates the inner bitmap data by 90 degress..
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