| /* |
| * Copyright (C) 2010 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; |
| |
| /** |
| * An implementation of display list for OpenGL ES 2.0. |
| */ |
| class GLES20DisplayList extends DisplayList { |
| private GLES20Canvas mCanvas; |
| |
| private boolean mStarted = false; |
| private boolean mRecorded = false; |
| |
| int mNativeDisplayList; |
| |
| @Override |
| HardwareCanvas start() { |
| if (mStarted) { |
| throw new IllegalStateException("Recording has already started"); |
| } |
| |
| destroyCanvas(); |
| |
| mCanvas = new GLES20Canvas(true, true); |
| mStarted = true; |
| mRecorded = false; |
| |
| return mCanvas; |
| } |
| |
| private void destroyCanvas() { |
| if (mCanvas != null) { |
| mCanvas.destroyDisplayList(mNativeDisplayList); |
| mCanvas.destroy(); |
| |
| mCanvas = null; |
| mNativeDisplayList = 0; |
| } |
| } |
| |
| @Override |
| void end() { |
| if (mCanvas != null) { |
| mStarted = false; |
| mRecorded = true; |
| |
| mNativeDisplayList = mCanvas.getDisplayList(); |
| } |
| } |
| |
| @Override |
| void destroy() { |
| destroyCanvas(); |
| } |
| |
| @Override |
| boolean isReady() { |
| return !mStarted && mRecorded; |
| } |
| } |