/**
* Method that load the gles texture and apply to the requestor frame (which includes fix the
* aspect ratio and/or effects and borders)
*
* @param requestor The requestor target
* @param ti The original texture information (the one with the bitmap one)
*/
private void applyToRequestor(TextureRequestor requestor, GLESTextureInfo ti) {
// Transform requestor dimensions to screen dimensions
RectF dimens = requestor.getRequestorDimensions();
Rect pixels =
new Rect(
0,
0,
(int) (mScreenDimensions.width() * dimens.width() / 2),
(int) (mScreenDimensions.height() * dimens.height() / 2));
final Disposition disposition = requestor.getDisposition();
synchronized (mEffectsSync) {
if (disposition.hasFlag(Disposition.EFFECT_FLAG)) {
ti.effect = mEffects.getNextEffect();
}
if (disposition.hasFlag(Disposition.BORDER_FLAG)) {
ti.border = mBorders.getNextBorder();
}
}
// Check if we have to apply any correction to the image
GLESTextureInfo dst;
if (ti.bitmap != null && Preferences.General.isFixAspectRatio(mContext)) {
// Create a texture of power of two here to avoid scaling the bitmap twice
int w = pixels.width();
int h = pixels.height();
if (!BitmapUtils.isPowerOfTwo(w, h)
&& PreferencesProvider.Preferences.General.isPowerOfTwo(mContext)) {
w = h = BitmapUtils.calculateUpperPowerOfTwo(Math.min(w, h));
}
// Create a thumbnail of the image
Bitmap thumb = BitmapUtils.createScaledBitmap(ti.bitmap, w, h, BitmapUtils.ScalingLogic.CROP);
if (!thumb.equals(ti.bitmap)) {
ti.bitmap.recycle();
}
dst = GLESUtil.loadTexture(mContext, thumb, ti.effect, ti.border, pixels);
} else {
// Load the texture without any correction
dst = GLESUtil.loadTexture(mContext, ti.bitmap, ti.effect, ti.border, pixels);
}
// Swap references
ti.bitmap = dst.bitmap;
ti.handle = dst.handle;
ti.effect = null;
ti.border = null;
dst.handle = 0;
dst.bitmap = null;
// And notify to the requestor
requestor.setTextureHandle(ti);
// Clean up memory
if (ti.bitmap != null) {
ti.bitmap.recycle();
ti.bitmap = null;
}
}
/** {@inheritDoc} */
@Override
public void run() {
try {
// Load the bitmap and create a fake gles information
ti = GLESUtil.loadFadeTexture(mImage, mDimensions);
boolean enqueue;
synchronized (mSync) {
enqueue = mPendingRequests.size() == 0;
}
synchronized (mSync) {
// Notify the new images to all pending frames
if (!enqueue) {
// Invalid textures are also reported, so requestor can handle it
TextureRequestor requestor = mPendingRequests.remove(0);
applyToRequestor(requestor, ti);
} else {
// Add to the queue (only valid textures)
if (ti.bitmap != null) {
mQueue.insert(ti);
}
}
}
} catch (Throwable e) {
Log.e(TAG, "Something was wrong loading the texture: " + mImage.getAbsolutePath(), e);
} finally {
// Notify that we have a new image
synchronized (mWait) {
mWait.notify();
}
}
}
/**
* Method that removes all the textures from the queue
*
* @param reload Forces a reload of the queue
*/
public void emptyTextureQueue(boolean reload) {
synchronized (mSync) {
// Recycle the textures
try {
List<GLESTextureInfo> all = mQueue.removeAll();
for (GLESTextureInfo info : all) {
if (GLES20.glIsTexture(info.handle)) {
int[] textures = new int[] {info.handle};
if (GLESUtil.DEBUG_GL_MEMOBJS) {
Log.d(GLESUtil.DEBUG_GL_MEMOBJS_DEL_TAG, "glDeleteTextures: [" + info.handle + "]");
}
GLES20.glDeleteTextures(1, textures, 0);
GLESUtil.glesCheckError("glDeleteTextures");
}
// Return the bitmap
info.bitmap.recycle();
info.bitmap = null;
}
} catch (EmptyQueueException eqex) {
// Ignore
}
// Remove all pictures in the queue
try {
mQueue.removeAll();
} catch (EmptyQueueException ex) {
// Ignore
}
// Reload the queue
if (reload) {
synchronized (mBackgroundTask.mLoadSync) {
mBackgroundTask.resetAvailableImages();
mBackgroundTask.mLoadSync.notify();
}
}
}
}
