norohind/vanilla
1
0
Fork 0
Code Issues 1 Pull Requests Projects Releases Wiki Activity

Make Song.generateBitmap more clear

Browse Source
This commit is contained in:
Christopher Eby 2010-05-31 23:11:17 -05:00
parent 91b8d627a8
commit 9de092f7fb
1 changed files with 25 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
src/org/kreed/vanilla/CoverView.java
View File

@ -284,12 +284,17 @@ public final class CoverView extends View {
/** /**
* Generates a bitmap for the given Song and stores it in the cache. * Generates a bitmap for the given Song and stores it in the cache.
*
* Prunes old bitmaps if the timeline becomes full.
*/ */
void generateBitmap(Song song) void generateBitmap(Song song)
{ {
int id = (int)song.id; int id = (int)song.id;
boolean created = false;
if (mBitmapCache.get(id) == null) { if (mBitmapCache.get(id) == null) {
created = true;
Bitmap bitmap; Bitmap bitmap;
if (mSeparateInfo) if (mSeparateInfo)
bitmap = CoverBitmap.createSeparatedBitmap(song, getWidth(), getHeight()); bitmap = CoverBitmap.createSeparatedBitmap(song, getWidth(), getHeight());
@ -301,25 +306,34 @@ public final class CoverView extends View {
} }
int[] timeline = mCacheTimeline; int[] timeline = mCacheTimeline;
int i = timeline.length; int end = timeline.length;
while (--i != -1 && timeline[i] == 0); while (end > 0 && timeline[end - 1] == 0)
int j = i + 1; --end;
while (--j != -1 && timeline[j] != id);
if (j != -1) { if (!created) {
System.arraycopy(timeline, j + 1, timeline, j, timeline.length - j - 1); // If we already have a bitmap for the given song, erase the old
} else if (i == timeline.length - 1) { // id and make room for it at the end of the timeline.
int i = end;
while (--i != -1 && timeline[i] != id);
if (i != -1) {
System.arraycopy(timeline, i + 1, timeline, i, timeline.length - i - 1);
--end;
}
}
if (end == timeline.length) {
// If the timeline is full, erase the bitmap for the oldest song
// and make room for the new bitmap at the end of the timeline.
int toRemove = timeline[0]; int toRemove = timeline[0];
System.arraycopy(timeline, 1, timeline, 0, timeline.length - 1); System.arraycopy(timeline, 1, timeline, 0, timeline.length - 1);
Bitmap bitmap = mBitmapCache.get(toRemove); Bitmap bitmap = mBitmapCache.get(toRemove);
mBitmapCache.remove(toRemove); mBitmapCache.remove(toRemove);
if (bitmap != null) if (bitmap != null)
bitmap.recycle(); bitmap.recycle();
--end;
} }
if (i < timeline.length - 1) timeline[end] = id;
++i;
timeline[i] = id;
} }
/** /**