/**
* This sets the scale type of GPUImage. This has to be run before setting the image. If image is
* set and scale type changed, image needs to be reset.
*
* @param scaleType The new ScaleType
*/
public void setScaleType(ScaleType scaleType) {
mScaleType = scaleType;
mRenderer.setScaleType(scaleType);
mRenderer.deleteImage();
mCurrentBitmap = null;
requestRender();
}
/**
* Gets the given bitmap with current filter applied as a Bitmap.
*
* @param bitmap the bitmap on which the current filter should be applied
* @return the bitmap with filter applied
*/
public Bitmap getBitmapWithFilterApplied(final Bitmap bitmap) {
if (mGlSurfaceView != null) {
mRenderer.deleteImage();
mRenderer.runOnDraw(
new Runnable() {
@Override
public void run() {
synchronized (mFilter) {
mFilter.destroy();
mFilter.notify();
}
}
});
synchronized (mFilter) {
requestRender();
try {
mFilter.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
GPUImageRenderer renderer = new GPUImageRenderer(mFilter);
renderer.setRotation(
Rotation.NORMAL, mRenderer.isFlippedHorizontally(), mRenderer.isFlippedVertically());
renderer.setScaleType(mScaleType);
PixelBuffer buffer = new PixelBuffer(bitmap.getWidth(), bitmap.getHeight());
buffer.setRenderer(renderer);
renderer.setImageBitmap(bitmap, false);
Bitmap result = buffer.getBitmap();
mFilter.destroy();
renderer.deleteImage();
buffer.destroy();
mRenderer.setFilter(mFilter);
if (mCurrentBitmap != null) {
mRenderer.setImageBitmap(mCurrentBitmap, false);
}
requestRender();
return result;
}
/**
* Gets the images for multiple filters on a image. This can be used to quickly get thumbnail
* images for filters. <br>
* Whenever a new Bitmap is ready, the listener will be called with the bitmap. The order of the
* calls to the listener will be the same as the filter order.
*
* @param bitmap the bitmap on which the filters will be applied
* @param filters the filters which will be applied on the bitmap
* @param listener the listener on which the results will be notified
*/
public static void getBitmapForMultipleFilters(
final Bitmap bitmap,
final List<GPUImageFilter> filters,
final ResponseListener<Bitmap> listener) {
if (filters.isEmpty()) {
return;
}
GPUImageRenderer renderer = new GPUImageRenderer(filters.get(0));
renderer.setImageBitmap(bitmap, false);
PixelBuffer buffer = new PixelBuffer(bitmap.getWidth(), bitmap.getHeight());
buffer.setRenderer(renderer);
for (GPUImageFilter filter : filters) {
renderer.setFilter(filter);
listener.response(buffer.getBitmap());
filter.destroy();
}
renderer.deleteImage();
buffer.destroy();
}
/** Deletes the current image. */
public void deleteImage() {
mRenderer.deleteImage();
mCurrentBitmap = null;
requestRender();
}