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Merge "Avoid allocating buffer every time getThumbnail is called." into gingerbread

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This commit is contained in:
Chih-Chung Chang
2010-08-25 00:07:23 -07:00
committed by Android (Google) Code Review
parent 37f709aeb0 2ca36196ea
commit 231a000565
1 changed files with 20 additions and 10 deletions
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30
core/java/android/provider/MediaStore.java
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@@ -249,6 +249,8 @@ public final class MediaStore {
private static final int MICRO_KIND = 3;
private static final String[] PROJECTION = new String[] {_ID, MediaColumns.DATA};
static final int DEFAULT_GROUP_ID = 0;
private static final Object sThumbBufLock = new Object();
private static byte[] sThumbBuf;
private static Bitmap getMiniThumbFromFile(Cursor c, Uri baseUri, ContentResolver cr, BitmapFactory.Options options) {
Bitmap bitmap = null;
@@ -321,11 +323,15 @@ public final class MediaStore {
long magic = thumbFile.getMagic(origId);
if (magic != 0) {
if (kind == MICRO_KIND) {
byte[] data = new byte[MiniThumbFile.BYTES_PER_MINTHUMB];
if (thumbFile.getMiniThumbFromFile(origId, data) != null) {
bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
if (bitmap == null) {
Log.w(TAG, "couldn't decode byte array.");
synchronized (sThumbBufLock) {
if (sThumbBuf == null) {
sThumbBuf = new byte[MiniThumbFile.BYTES_PER_MINTHUMB];
}
if (thumbFile.getMiniThumbFromFile(origId, sThumbBuf) != null) {
bitmap = BitmapFactory.decodeByteArray(sThumbBuf, 0, sThumbBuf.length);
if (bitmap == null) {
Log.w(TAG, "couldn't decode byte array.");
}
}
}
return bitmap;
@@ -357,11 +363,15 @@ public final class MediaStore {
// Assuming thumbnail has been generated, at least original image exists.
if (kind == MICRO_KIND) {
byte[] data = new byte[MiniThumbFile.BYTES_PER_MINTHUMB];
if (thumbFile.getMiniThumbFromFile(origId, data) != null) {
bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
if (bitmap == null) {
Log.w(TAG, "couldn't decode byte array.");
synchronized (sThumbBufLock) {
if (sThumbBuf == null) {
sThumbBuf = new byte[MiniThumbFile.BYTES_PER_MINTHUMB];
}
if (thumbFile.getMiniThumbFromFile(origId, sThumbBuf) != null) {
bitmap = BitmapFactory.decodeByteArray(sThumbBuf, 0, sThumbBuf.length);
if (bitmap == null) {
Log.w(TAG, "couldn't decode byte array.");
}
}
}
} else if (kind == MINI_KIND) {