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First pass at using hardware bitmaps

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Bug: 35428783
Change-Id: Ife67b85f6e7e268826597ed9bccd9659841f67de
This commit is contained in:
Sunny Goyal
2017-11-08 16:52:34 -08:00
parent 30d276cb92
commit 9d32323cac
9 changed files with 143 additions and 69 deletions
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25
src/com/android/launcher3/graphics/ShadowGenerator.java
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@@ -50,49 +50,38 @@ public class ShadowGenerator {
private final int mIconSize;
private final Canvas mCanvas;
private final Paint mBlurPaint;
private final Paint mDrawPaint;
private final BlurMaskFilter mDefaultBlurMaskFilter;
private ShadowGenerator(Context context) {
mIconSize = LauncherAppState.getIDP(context).iconBitmapSize;
mCanvas = new Canvas();
mBlurPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
mDrawPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
mDefaultBlurMaskFilter = new BlurMaskFilter(mIconSize * BLUR_FACTOR, Blur.NORMAL);
}
public synchronized Bitmap recreateIcon(Bitmap icon) {
return recreateIcon(icon, true, mDefaultBlurMaskFilter, AMBIENT_SHADOW_ALPHA,
KEY_SHADOW_ALPHA);
public synchronized void recreateIcon(Bitmap icon, Canvas out) {
recreateIcon(icon, mDefaultBlurMaskFilter, AMBIENT_SHADOW_ALPHA, KEY_SHADOW_ALPHA, out);
}
public synchronized Bitmap recreateIcon(Bitmap icon, boolean resize,
BlurMaskFilter blurMaskFilter, int ambientAlpha, int keyAlpha) {
int width = resize ? mIconSize : icon.getWidth();
int height = resize ? mIconSize : icon.getHeight();
public synchronized void recreateIcon(Bitmap icon, BlurMaskFilter blurMaskFilter,
int ambientAlpha, int keyAlpha, Canvas out) {
int[] offset = new int[2];
mBlurPaint.setMaskFilter(blurMaskFilter);
Bitmap shadow = icon.extractAlpha(mBlurPaint, offset);
Bitmap result = Bitmap.createBitmap(width, height, Config.ARGB_8888);
mCanvas.setBitmap(result);
// Draw ambient shadow
mDrawPaint.setAlpha(ambientAlpha);
mCanvas.drawBitmap(shadow, offset[0], offset[1], mDrawPaint);
out.drawBitmap(shadow, offset[0], offset[1], mDrawPaint);
// Draw key shadow
mDrawPaint.setAlpha(keyAlpha);
mCanvas.drawBitmap(shadow, offset[0], offset[1] + KEY_SHADOW_DISTANCE * mIconSize, mDrawPaint);
out.drawBitmap(shadow, offset[0], offset[1] + KEY_SHADOW_DISTANCE * mIconSize, mDrawPaint);
// Draw the icon
mDrawPaint.setAlpha(255);
mCanvas.drawBitmap(icon, 0, 0, mDrawPaint);
mCanvas.setBitmap(null);
return result;
out.drawBitmap(icon, 0, 0, mDrawPaint);
}
public static ShadowGenerator getInstance(Context context) {