| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| |
| package android.view; |
| |
| import android.graphics.Bitmap; |
| import android.graphics.Paint; |
| |
| /** |
| * An OpenGL ES 2.0 implementation of {@link HardwareLayer}. |
| */ |
| abstract class GLES20Layer extends HardwareLayer { |
| int mLayer; |
| Finalizer mFinalizer; |
| |
| GLES20Layer() { |
| } |
| |
| GLES20Layer(int width, int height, boolean opaque) { |
| super(width, height, opaque); |
| } |
| |
| /** |
| * Returns the native layer object used to render this layer. |
| * |
| * @return A pointer to the native layer object, or 0 if the object is NULL |
| */ |
| public int getLayer() { |
| return mLayer; |
| } |
| |
| @Override |
| void setLayerPaint(Paint paint) { |
| if (paint != null) { |
| GLES20Canvas.nSetLayerPaint(mLayer, paint.mNativePaint); |
| GLES20Canvas.nSetLayerColorFilter(mLayer, paint.getColorFilter() != null ? |
| paint.getColorFilter().nativeColorFilter : 0); |
| } |
| } |
| |
| @Override |
| public boolean copyInto(Bitmap bitmap) { |
| return GLES20Canvas.nCopyLayer(mLayer, bitmap.mNativeBitmap); |
| } |
| |
| @Override |
| public void destroy() { |
| if (mFinalizer != null) { |
| mFinalizer.destroy(); |
| mFinalizer = null; |
| } |
| mLayer = 0; |
| } |
| |
| @Override |
| void clearStorage() { |
| if (mLayer != 0) GLES20Canvas.nClearLayerTexture(mLayer); |
| } |
| |
| static class Finalizer { |
| private int mLayerId; |
| |
| public Finalizer(int layerId) { |
| mLayerId = layerId; |
| } |
| |
| @Override |
| protected void finalize() throws Throwable { |
| try { |
| if (mLayerId != 0) { |
| GLES20Canvas.nDestroyLayerDeferred(mLayerId); |
| } |
| } finally { |
| super.finalize(); |
| } |
| } |
| |
| void destroy() { |
| GLES20Canvas.nDestroyLayer(mLayerId); |
| mLayerId = 0; |
| } |
| } |
| } |